阅读说明：本技术 单元配送箱及具有其的物流配送车 (Unit distribution box and logistics distribution vehicle with same ) 是由 万和顺 胡礼琴 于 2020-11-02 设计创作，主要内容包括：本发明提供一种单元配送箱及具有其的物流配送车,单元配送箱包括储物室、与所述储物室相邻设置的蓄能室、位于所述蓄能室内的蓄能组件、将所述蓄能组件的能量传输给所述储物室的供能组件和控制器,所述蓄能组件、所述供能组件均与所述控制器通讯连接,所述蓄能组件包括若干排蓄能装置、供载能剂流通的蓄能通道,所述蓄能通道沿所述蓄能室朝所述储物室的方向逐排连通所述蓄能装置,且所述蓄能通道的入口位于距所述储物室最远的一排蓄能装置处,所述蓄能通道的出口位于距所述储物室最近的一排蓄能装置处。(The invention provides a unit distribution box and a logistics distribution vehicle with the same, wherein the unit distribution box comprises a storage chamber, an energy storage chamber arranged adjacent to the storage chamber, an energy storage assembly positioned in the energy storage chamber, an energy supply assembly for transmitting the energy of the energy storage assembly to the storage chamber and a controller, the energy storage assembly and the energy supply assembly are both in communication connection with the controller, the energy storage assembly comprises a plurality of rows of energy storage devices and an energy storage channel for circulating an energy carrying agent, the energy storage channel is communicated with the energy storage devices row by row along the direction of the energy storage chamber towards the storage chamber, the inlet of the energy storage channel is positioned at the row of energy storage devices farthest from the storage chamber, and the outlet of the energy storage channel is positioned at the row of energy storage devices closest to the storage chamber.)

1. The utility model provides a unit delivery case, includes the storing room, its characterized in that, unit delivery case still include with the adjacent energy storage room that sets up of storing room, be located energy storage subassembly in the energy storage room, will energy storage subassembly's energy transmission gives the energy supply subassembly and the controller of storing room, energy storage subassembly energy supply subassembly all with the controller communication is connected, energy storage subassembly includes a plurality of rows of energy storage equipment, supplies to carry the energy storage passageway of energy agent circulation, the energy storage passageway is followed energy storage room court the direction of storing room is arranged the intercommunication one by one energy storage equipment, just the entry of energy storage passageway is located apart from the one row of energy storage equipment department of storing room farthest, the export of energy storage passageway is located apart from the nearest one row of energy storage equipment department of storing room.

2. The unit delivery box of claim 1, wherein the energy storage passage is disposed through or adjacent to the energy storage device.

3. The unit dispensing box of claim 2 wherein the accumulator means includes flow passages, the accumulator assembly further includes a connecting pipe having a flow passage therein, the connecting pipe including an in-row connecting pipe connecting the flow passages of the accumulator means in each row in series, and an inter-row connecting pipe connecting the flow passages of two adjacent accumulator means in two adjacent rows in a direction from the accumulator chamber toward the accumulator chamber; the flow channel and the flow passage jointly form the energy storage channel;

or the energy storage device comprises a flow passage, the energy storage assembly further comprises a connecting pipe internally provided with a flow passage, and the connecting pipe comprises an inter-row connecting pipe which is used for connecting the flow passages of two adjacent energy storage devices in two adjacent rows along the direction from the energy storage chamber to the storage chamber; the flow passage and the flow passage together constitute the energy storage passage.

4. The unit delivery box according to claim 2, wherein the energy storage devices comprise flow passages, the energy storage assembly further comprises a connecting pipe having a flow passage therein, the connecting pipe comprises a row internal connecting pipe inserted into the flow passage of each row of the plurality of energy storage devices, and an inter-row connecting pipe connecting the row internal connecting pipes of two adjacent rows of the plurality of energy storage devices in a direction from the energy storage chamber to the storage chamber, and the flow passage constitutes the energy storage passage.

5. The unit distribution box according to claim 2, wherein a gap is formed between adjacent energy storage devices, the gap is formed in the gap, the gap is formed between two adjacent partition plates, the two partition plates are located between two sides of the energy storage assembly along the first direction and the side wall forming the energy storage chamber, two rows of gaps are formed between two adjacent partition plates on the same side, the partition plates on two sides are arranged in a staggered mode along the direction of the energy storage chamber towards the energy storage chamber, and the gap forms the energy storage channel.

6. The unit dispensing box of any one of claims 1-5 wherein the energy storage chamber is located below the storage chamber.

7. The unit delivery box of any one of claims 1-5, wherein the energy supply assembly comprises a temperature sensor located in the storage chamber, an energy supply air duct communicating the energy storage chamber with the storage chamber, and an energy supply fan driving air to circulate between the storage chamber and the energy storage chamber, and the temperature sensor and the energy supply fan are both in communication connection with the controller.

8. The unit delivery box of claim 7, wherein the energy storage chamber is located below the storage chamber, the energy supply duct comprises a first duct extending in an up-and-down direction and communicating the energy storage chamber with the storage chamber, and a return air inlet provided on a return air insulation plate at the bottom of the storage chamber and communicating with the energy storage chamber, the air outlet of the first duct leading to the storage chamber is located at the top of the storage chamber, and the energy supply fan is located in the energy storage chamber, or the energy supply fan is located in the first duct.

9. The unit dispensing box of claim 7 wherein the heat exchanger assembly is located at the top of the storage compartment and includes a heat exchanger and a heat exchange fan, the heat exchanger being located on either the air outlet side or the air suction side of the fan.

10. The unit distribution box according to any one of claims 1 to 5, further comprising a refrigeration unit, wherein the refrigeration unit comprises a compressor, a condenser connected to the compressor, and a throttling element connected to the condenser, wherein an inlet of the energy storage passage is connected to the throttling element, and an outlet of the energy storage passage is connected to the compressor;

or, the unit distribution box further comprises a refrigerating unit and an energy storage fan, the refrigerating unit comprises a compressor, a condenser, a throttling element and an evaporator which are connected to form a circulation loop, and the evaporator and the energy storage fan are located on the circulation loop communicated with the energy storage channel.

11. The unit dispensing box of any one of claims 1 to 5, further comprising a heating assembly for providing heat to the storage compartment.

12. The unit dispensing box of claim 11 wherein the heating assembly includes a heater and a heating fan located within the storage compartment.

13. A logistics distribution vehicle, characterized in that the logistics distribution vehicle comprises a unit distribution box according to any one of claims 1 to 12.

Technical Field

The invention relates to the technical field of logistics distribution, in particular to a unit distribution box and a logistics distribution vehicle with the same.

Background

With the improvement of living standard, the application scenes of cold or heat supply are more and more. If the refrigerating unit is arranged in all application scenes, the cost and the energy consumption are high.

For example, Cold Chain Logistics (Cold Chain Logistics) generally refers to a system engineering that refrigerated and frozen food is always in a specified low-temperature environment in each link before production, storage, transportation and sale, so as to ensure the quality of the food and reduce the loss of the food. In a traditional cold chain transport vehicle, a refrigeration unit is powered by gasoline or a battery pack, and the refrigeration unit works to supply cold to a refrigerating box; the refrigerating unit needs to work in the whole transportation section, the energy consumption is large, and the utilization rate is low.

In order to save energy and protect environment, people load the energy storage component on the cold chain transport vehicle to store cold at the beginning, and in the whole transport process, the cold storage unit supplies cold for the cold storage box, so that the energy consumption is reduced. However, the existing energy storage assembly has a long cold storage time, for example, 10 to 13 hours, but the energy storage assembly is not completely insulated from the storage chamber, and this process may affect the temperature in the storage chamber, especially the articles in the storage chamber near the energy storage assembly may be frozen.

In view of the above, there is a need for an improved unit distribution box and a logistics distribution vehicle having the same to solve the above-mentioned technical problems.

Disclosure of Invention

The invention aims to provide a unit distribution box with small influence on the temperature of a storage chamber in a cold accumulation process and a logistics distribution vehicle with the unit distribution box.

In order to realize one of the purposes of the invention, the invention adopts the following technical scheme:

the utility model provides a unit delivery case, including the storing room, with the adjacent energy storage room that sets up of storing room, be located energy storage subassembly in the energy storage room, with energy storage subassembly's energy transmission gives energy supply subassembly and the controller of storing room, energy storage subassembly energy supply subassembly all with the controller communication is connected, energy storage subassembly includes a plurality of rows of energy storage equipment, supplies to carry the energy storage passageway of energy agent circulation, energy storage passageway is followed energy storage room court the direction of storing room is arranged the intercommunication one by one energy storage equipment, just the entry of energy storage passageway is located apart from the one row of energy storage equipment department of storing room farthest, the export of energy storage passageway is located apart from the nearest one row of energy storage equipment department of storing room.

Furthermore, the energy storage channel penetrates through the energy storage device, or the energy storage channel and the energy storage device are arranged adjacently.

Furthermore, the energy storage device comprises flow channels, the energy storage assembly further comprises a connecting pipe internally provided with a flow passage, and the connecting pipe comprises an in-row connecting pipe for connecting the flow channels of the energy storage devices in each row in series and an inter-row connecting pipe for connecting the flow channels of two adjacent energy storage devices in two adjacent rows along the direction of the energy storage chamber towards the storage chamber; the flow channel and the flow passage jointly form the energy storage channel; or the energy storage device comprises a flow passage, the energy storage assembly further comprises a connecting pipe internally provided with a flow passage, and the connecting pipe comprises an inter-row connecting pipe which is used for connecting the flow passages of two adjacent energy storage devices in two adjacent rows along the direction from the energy storage chamber to the storage chamber; the flow passage and the flow passage together constitute the energy storage passage.

Furthermore, the energy storage device comprises a flow passage, the energy storage assembly further comprises a connecting pipe provided with a flow passage therein, the connecting pipe comprises a row internal connecting pipe penetrating through the flow passage in the plurality of energy storage devices in each row, and an inter-row connecting pipe connecting the row internal connecting pipes in two adjacent rows of the energy storage devices along the direction of the energy storage chamber towards the storage chamber, and the flow passage forms the energy storage passage.

Furthermore, a gap penetrating along the first direction is formed between the adjacent energy storage devices, the energy storage assembly further comprises partition plates located on two sides of the energy storage assembly along the first direction and between the two adjacent partition plates on the same side, two rows of gaps are formed between the two adjacent partition plates on the same side, the partition plates on the two sides are arranged along the energy storage chamber in a staggered mode towards the direction of the energy storage chamber, and the gaps form the energy storage channel.

Further, the energy storage chamber is located below the storage chamber.

Further, the energy supply subassembly is including being located temperature sensor, the intercommunication in the storing room the energy storage room with the energy supply wind channel of storing room, order about the air and be in the storing room with the energy supply fan of circulation between the energy storage room, temperature sensor the energy supply fan all with the controller communication is connected.

Further, the energy storage room is located the below of storing room, the energy supply wind channel includes and extends and communicate along upper and lower direction the energy storage room with the first wind channel of storing room, set up in on the return air heat insulating board of storing room bottom and with the return air inlet of energy storage room intercommunication, first wind channel accesss to the air outlet of storing room is located the top of storing room, the energy supply fan is located in the energy storage room, or the energy supply fan is located in the storing room, or the energy supply fan is located in the first wind channel.

Further, the heat exchanger subassembly is located the top of storing room, just the heat exchanger subassembly includes heat exchanger and heat transfer fan, the heat exchanger is located the air-out side or the side that induced drafts of fan.

Furthermore, the unit distribution box further comprises a refrigerating unit, the refrigerating unit comprises a compressor, a condenser connected with the compressor and a throttling element connected with the condenser, an inlet of the energy storage channel is connected with the throttling element, and an outlet of the energy storage channel is connected with the compressor; or, the unit distribution box further comprises a refrigerating unit and an energy storage fan, the refrigerating unit comprises a compressor, a condenser, a throttling element and an evaporator which are connected to form a circulation loop, and the evaporator and the energy storage fan are located on the circulation loop communicated with the energy storage channel.

Further, the unit dispensing box further includes a heating assembly that provides heat to the storage compartment.

Further, the heating assembly comprises a heater and a heating fan which are positioned in the storage chamber.

A logistics distribution vehicle comprises any one of the unit distribution boxes.

The invention has the beneficial effects that: according to the unit distribution box, the inlets of the energy storage channels are located at the row of energy storage devices farthest from the storage chamber, the outlets of the energy storage channels are located at the row of energy storage devices closest to the storage chamber, and the energy carrying agent enters from the inlets to exchange heat with the energy storage devices and then flows out from the outlets, so that the energy storage devices far away from the storage chamber obtain heat or cold before the energy storage devices close to the storage chamber, the temperature of the storage chamber is not greatly influenced in the energy storage process, and products can be prevented from being frozen.

Drawings

FIG. 1 is a perspective view of a cold chain distribution box according to a preferred embodiment of the present invention;

FIG. 2 is a cross-sectional view of FIG. 1;

FIG. 3 is a schematic view of FIG. 1 with the door and portions of the chest removed;

FIG. 4 is a schematic view of the energy storage assembly and the energy supply assembly in cooperation;

FIG. 5 is a schematic diagram of an embodiment of an energy storage assembly;

FIG. 6 is a perspective view of an energy storage device in accordance with a preferred embodiment of the present invention;

FIG. 7 is a schematic view of FIG. 6 taken along an axis perpendicular to the inner tube;

FIG. 8 is a schematic diagram of a phase change sequence at various points in the energy storage apparatus of FIG. 7;

FIG. 9 is a cross-sectional view taken along A-A of FIG. 7;

FIG. 10 is a schematic diagram of another embodiment of an energy storage device as shown in FIG. 9;

FIG. 11 is a schematic view of an energy storage device in accordance with another preferred embodiment from the perspective of FIG. 7;

FIG. 12 is a schematic view of an energy storage device in accordance with another preferred embodiment from the perspective of FIG. 7;

FIG. 13 is a schematic view of an energy storage device in accordance with another preferred embodiment from the perspective of FIG. 7;

FIG. 14 is a perspective view of another embodiment of an energy storage device;

FIG. 15 is an exploded view of FIG. 14;

fig. 16 is a schematic end view of the tube, inner tube and heat conductive fins of fig. 14.

Wherein, 100-unit distribution box, 1-box body, 2-door body, 21-door lock, 3-storage chamber, 31-return air heat insulation plate, 311-top plate, 312-bottom plate, 313-communicating chamber, 314-reinforcing rib, 4-energy storage chamber, 5-energy storage device, 51-shell, 52-energy storage chamber, 521-sub energy storage chamber, 53-outer tube, 54-end cover, 541-injection port, 542-sealing piece, 543-through hole, 55-flow channel, 55' -auxiliary flow channel, 56-inner tube, 57-heat conducting sheet, 571-heat transfer sheet, 572-heat radiating sheet, 6-connecting tube, 6 a-inlet, 6 b-outlet, 61-row internal connecting tube, 62-row internal connecting tube, 63-gap, 7-heating component, 71-heater, 72-heating fan, 8-energy supply component, 81-energy supply air channel, 811-first air channel, 812-air return opening, 82-energy supply fan, 9-refrigeration component, 91-press cabin, 92-heat dissipation hole, 10-controller, 101-battery cabin and 102-battery component.

Detailed Description

The present invention will be described in detail below with reference to specific embodiments shown in the drawings. These embodiments are not intended to limit the present invention, and structural, methodological, or functional changes made by those skilled in the art according to these embodiments are included in the scope of the present invention.

In the various drawings of the present invention, some dimensions of structures or portions are exaggerated relative to other structures or portions for convenience of illustration, and thus, are used only to illustrate the basic structure of the subject matter of the present invention.

For convenience of description, the lower part and the upper part are defined according to the orientation of the energy storage device in the actual use process.

Referring to fig. 1 to 16, a unit distribution box 100 according to a preferred embodiment of the present invention includes a box body 1 and a door body 2, wherein the door body 2 is provided with a door lock 21. The box body 1 and the door body 2 are both made of heat insulation materials, such as vacuum heat insulation plates or foaming heat insulation plates.

Be equipped with storing room 3 in the box 1, with storing room 4 that storing room 3 adjacent set up, be located energy storage component in the energy storage room 4, with energy storage component's energy transmission gives energy supply subassembly 8 and controller 10 of storing room 3. The controller 10 is communicatively connected to other components to control the operating state thereof.

Compared with the prior art that the energy storage component is arranged in the storage chamber 3, the storage chamber 3 and the energy storage chamber 4 are arranged adjacently and separated by the return air heat insulation plate 31, and the energy storage component indirectly provides cold or heat for the storage chamber 3 through the energy supply component 8. On one hand, the energy storage chamber 4 and the storage chamber 3 are arranged adjacently, the path of the energy supply assembly 8 is short, and the arrangement mode is simple; on the other hand, the goods loading and pre-cooling of the storage chamber 3 and the cold accumulation of the energy storage assembly can be carried out simultaneously, so that the time is saved, and the phenomenon of cold leakage of the energy storage assembly can not be caused when the storage chamber 3 is opened because the two chambers are independent; moreover, in the energy storage process, the energy storage assembly has small influence on the temperature in the storage chamber 3, so that the goods cannot be frozen; and in the energy supply process, the temperature controllability in the storage chamber 3 is high, and the temperature fluctuation is small.

The storage chamber 3 and the energy storage chamber 4 are arranged according to the actual situation. Preferably, the energy storage chamber 4 is located below the storage chamber 3, and the center of gravity of the unit distribution box 100 is located below, so that the unit distribution box is not prone to toppling during a lifting process, especially during lifting of an empty box.

The energy storage assembly comprises a plurality of rows of energy storage devices 5 and energy storage channels for the energy carrying agent to flow so as to provide energy for the energy storage devices 5. The energy carrier is a general term for all fluids that can provide heat or cold to the energy storage device 5.

Referring to fig. 6 to 16, the energy storage device 5 includes a housing 51, an inner tube 56 penetrating the housing 51 and having a flow passage, a closed energy storage cavity 52 enclosed by the housing 51 and the inner tube 56 for storing energy storage material, and a heat conducting fin 57 located in the energy storage cavity 52; the heat conductive sheet 57 is in contact with at least one of the outer shell 51 or the inner tube 56 to increase a heat exchange rate.

The shape of the housing 51 is not limited, and may be adaptively changed according to the need or installation space. For example, in the embodiment shown in fig. 6, the housing 51 includes an outer tube 53, and end caps 54 that close both ends of the outer tube 53, the end caps 54 are any structures that close both ends of the outer tube 53, and the end caps 54 are provided separately from or integrally with the outer tube 53.

The cross-sectional shape of the outer tube 53 is circular, polygonal or any other shape, and the polygonal shape includes, but is not limited to, triangle, square, hexagon, trapezoid, etc.

The end cover 54 is provided with a through hole 543 through which the inner tube 56 passes, the through hole 543 of the end cover 54 is sleeved on the inner tube 56, and then the joint of the end cover 54 and the inner tube 56 is sealed by welding and the like, so that the process is convenient to manufacture. Meanwhile, the end cover 54 and/or the outer tube 53 are provided with a filling opening 541 for filling the energy storage cavity 52 with energy storage material, and after the energy storage material is filled, the filling opening 541 is sealed by a sealing member 542.

The energy storage device 5 further comprises an energy storage material, preferably a phase change material, located in the energy storage cavity 52, which can store or release a large amount of energy during a phase change. The addition amount of the energy storage material is as follows: when the energy storage material is in a liquid state, the volume of the energy storage material is not more than 80% of the volume of the energy storage cavity 52, and the energy storage device 5 cannot be deformed or broken due to the increase of the volume when the energy storage material is in phase change.

The cross-sectional shape of the inner tube 56 is circular, polygonal, or any other shape. The cross-sectional shapes of the inner tube 56 and the outer tube 53 may be the same, and the relative positions of the two are clear at a glance. Or the cross-sectional shapes of the inner tube 56 and the outer tube 53 are different, so that the selection space of the inner tube and the outer tube is enlarged, and the optimal shape combination can be carried out according to the actual situation.

In a preferred embodiment, both ends of the inner tube 56 are exposed from the end cap 54 to facilitate welding of the inner tube 56 to the outer shell 51. In other embodiments, as shown in fig. 9, an inwardly extending sleeve may be provided on the end cap 54, and the inner tube 56 is connected to the sleeve, in which case the inner tube 56 is located inside the outer shell 51. Of course, the sleeve may also extend outwardly from the end cap 54.

The heat conductive sheet 57 can enlarge a heat transfer area, thereby increasing a heat exchange speed. Therefore, the heat exchange speed in the energy storage chamber 52 can be changed by adjusting the structure, the arrangement density, and the like of the heat-conducting fin 57. The relative positions of the inner tube 56 and the outer tube 53, the specific structure of the heat-conducting fin 57, and the arrangement thereof will be described in detail below.

The heat conducting fins 57 include heat conducting fins 571 in contact with both the inner tube 56 and the outer shell 51, and the heat conducting fins 571 support and fix the inner tube 56 and simultaneously enable the inner tube 56 and the outer shell 51 to perform rapid heat exchange, so that the inner tube 56 and the outer shell 51 perform heat exchange with the energy storage material in the energy storage cavity 52 from the inner side and the outer side, respectively, and the heat exchange efficiency is improved.

In one embodiment, the heat transfer fins 571 extend outwardly from the inner tube 56. "extending from the inside to the outside" means: the heat transfer fins 571 have a tendency to extend from the inside to the outside, including but not limited to, radially outwardly of the inner tube 56.

Further, the heat transfer sheet 571 includes an inner connection portion connected to the inner tube 56 and/or an outer connection portion connected to the outer shell 51, so that the connection strength and the heat transfer performance of the heat transfer sheet 571 to the inner tube 56 and the outer tube 53 are improved.

The heat transfer sheet 571 may be a sheet shape, an arc shape, a spiral shape, etc. Preferably, the sheet shape is selected, which facilitates the manufacturing process, and particularly, the process difficulty is greatly reduced when the inner tube 56, the heat transfer sheet 571 and the outer shell 51 are integrally formed. After being cut along the axial direction perpendicular to the inner tube 56, the cross section of the heat transfer sheet 571 is rectangular, triangular, trapezoidal, arc-shaped, etc.

Taking a sheet shape as an example, the thickness of the heat transfer sheet 571 is not less than 1.5mm, preferably between 1.5mm and 2mm, the heat transfer sheet 571 has sufficient strength to support and fix the inner tube 56, and meanwhile, the heat conduction sheet 57 with the thickness has small thermal resistance, so that the thermal attenuation of the heat transfer sheet 571 can be effectively reduced, and the effective heat transfer between the outer tube 53 and the inner tube 56 is ensured.

As can be seen from the above, the greater the number of the heat transfer fins 571, the faster the heat exchange rate of the entire energy storage device 5. The number of the heat transfer sheets 571 is calculated by the extending direction of the heat transfer sheets 571 relative to the inner tube 56, that is, the heat transfer sheets 571 extending from the inner tube 56 in different directions are two different heat transfer sheets 571; the connection point between the conductive heat transfer sheet 571 and the conductive heat transfer sheet 571 is not directly calculated.

The inventor researches and discovers that when at least two heat transfer sheets 571 are included, the heat transfer sheets 571 divide the energy storage chamber 52 into at least two sub energy storage chambers 521. In the using process, when the energy storage material in the sub energy storage cavity 521 changes in phase change volume, the shell 51 enclosing the sub energy storage cavity is deformed or broken, which affects the use and the appearance; or the heat transfer sheet 571 enclosing the sub energy storage chamber is deformed or broken, thereby affecting the heat exchange speed.

To solve the technical problem, the energy storage device 5 further includes a communication channel 55 communicating at least two of the sub energy storage chambers 521. The sub energy storage cavities 521 are communicated through the communication channel 55, when the energy storage material is subjected to volume expansion due to phase change when acquiring cold or heat, for example, the energy storage material is changed from a liquid state to a solid state, the liquid energy storage material can flow in the adjacent sub energy storage cavities 521 through the communication channel 55, the pressure of the single sub energy storage space is released, and the energy storage device 5 is prevented from being deformed or burst.

Specifically, the communication channel 55 is located between the heat transfer sheet 571 and the inner tube 56, or the communication channel 55 is located between the heat transfer sheet 571 and the housing 2; or the communication channel 55 penetrates the heat transfer sheet 571, that is, the communication channel 55 is disposed inside the heat transfer sheet 571.

In a preferred embodiment, the heat transfer sheet 571 extends in the axial direction of the inner tube 56, and the communication channel 55 is located between at least one end of the heat transfer sheet 571 in the axial direction of the inner tube 56 and the inner tube 56; and/or the communication passage 55 is located between at least one end of the heat transfer sheet 571 in the axial direction of the inner tube 56 and the outer shell 51. The design greatly reduces the processing difficulty, and particularly in the energy storage device 5 in which the inner tube 56, the heat transfer sheet 571 and the outer tube 53 are integrally formed, after the energy storage device is formed, a part of the heat transfer sheet 571 is removed at least at one end of the heat transfer sheet 571 along the axial direction of the inner tube 56 to form a communication channel 55, so that the process is simple and feasible.

Further, the heat conducting plate 57 further includes at least one heat dissipating fin 572 located in the sub energy storage chamber 521, and the heat exchanging speed can be further increased by the heat dissipating fin 572. The heat sink 572 is connected to the inner tube 56, and a gap is provided between the heat sink 572 and the outer shell 51; or the heat sink 572 is connected to the outer shell 51, and a gap is provided between the heat sink 572 and the inner tube 31.

The heat radiating fins 572 are different from the heat transfer fins 571 only in structure in that: the thickness of the heat sink 572 is smaller than that of the heat transfer fin 571, so that the heat transfer fin does not occupy too much energy storage cavity 52 on the premise of ensuring the heat exchange speed, and can reduce the weight and the cost.

Preferably, an auxiliary communication channel 55' is provided at a position of the heat sink 572 corresponding to the communication channel 55, so as to ensure that the energy storage material flows smoothly. The "corresponding position" means a position where the communication passage 55 is mapped onto the fin 572 in the circumferential direction of the inner tube 56, and the fluid medium can rapidly pass through the adjacent communication passage 55 and the auxiliary communication passage 55', and the flow velocity can be increased.

Specifically, at least one end of the heat transfer sheet 571 and the heat radiation sheet 572 is located between the inner side of the outer shell 51 and the outer shell 51 along the axial direction of the inner tube 56, and a gap is formed between the outer shell 51 and the gap, which constitutes the communication passage 55, and the energy storage material in the different sub energy storage chambers 521 flows through the gap.

In a specific embodiment, the inner tube 56 extends along the axial direction of the outer tube 53, and both ends of the inner tube 56 are exposed from the end cap 54, and the heat transfer fins 571 are respectively in contact with the inner tube 56 and the outer tube 53 along both ends of the inner tube 56 in the radial direction; gaps are provided between the end portions of the heat transfer fins 571 and the heat dissipation fins 572 in the axial direction of the inner tube 56 and the end cover 54, and the gaps constitute the communication passages 55.

The inventor also finds that the phase change speed of the energy storage material is related to the speed of acquiring cold or heat, the arrangement position of the inner tube 56 in the outer tube 53, the structure and arrangement manner of the heat transfer sheet 571 and/or the structure and arrangement manner of the heat dissipation sheet 572 all have an influence on the speed of acquiring cold or heat by the energy storage material, and the faster the speed of acquiring cold or heat by the energy storage material, the faster the speed of generating phase change.

The heat transfer fins 571 and the heat dissipation fins 572 divide the energy storage cavity 52 into a plurality of small non-closed cavities; if the energy storage material at the outlet of the cavity has a phase change with a larger volume than the energy storage material inside, for example, after the energy storage material at the outlet of the cavity changes from a liquid state to a solid state, the energy storage material inside the cavity changes from a liquid state to a solid state, so that the outer shell 51, the inner tube 56 or the heat conducting sheet 57 enclosing the cavity deforms or bursts. On the contrary, if the volume of the energy storage material in the cavity is larger than that of the energy storage material at the outlet, that is, the phase change speed of the energy storage material in the energy storage cavity is reduced from the inside to the outlet of the cavity, when the volume of the energy storage material in the energy storage cavity is larger, the liquid or gaseous energy storage material flows outwards, so that the energy storage device 5 can be prevented from deforming or breaking; it is therefore important how to control the direction of the change of the phase change speed in at least part of the region within the energy storage chamber 52.

In the present invention, in part of the energy storage cavity 52, the structure and the arrangement of the heat conducting fins 57 meet at least one of the following conditions: the length of the heat-conducting fins 57 decreases in the circumferential direction of the inner tube 56, the arrangement density of the heat-conducting fins 57 decreases in the circumferential direction of the inner tube 56, and the thickness of the heat-conducting fins 57 decreases in the circumferential direction of the inner tube 56. Along the above-mentioned direction of reduction, the heat or cold volume that heat conduction piece 57 provided for the energy storage liquid in the energy storage chamber reduces, and the phase transition speed of energy storage liquid reduces, can avoid energy storage device 5 takes place to warp or break.

The "part of the energy storage chamber" is a part of the energy storage chamber 52, and in the embodiment where the heat conducting sheet 57 includes the heat transferring sheet 571 and the heat dissipating sheet 572, the "part of the energy storage chamber" is a sub energy storage chamber 521 between two adjacent heat transferring sheets 571. The above-mentioned "decrease" means that there is a decreasing tendency in the unit volume, and may be a continuous decrease, an equal difference decrease or a gradual decrease, and the like.

Specifically, the heat conducting fins 57 extend from the inner tube 56 in a direction away from the inner tube 56, and the heat conducting fins 57 include at least two heat transferring fins 571 in contact with both the inner tube 56 and the outer shell 51, an included angle between at least two adjacent heat transferring fins 571 ranges from 90 ° to α being less than or equal to 180 °, a length of the heat dissipating fins 572 located between the two heat transferring fins 571 decreases along a circumferential direction of the inner tube 56, and/or a disposition density of the heat dissipating fins 572 decreases along the circumferential direction of the inner tube 56, so that a heat transferring area of the heat dissipating fins 572 decreases from one of the heat transferring fins 571 to the other heat transferring fin 571, and the energy storage liquid in the sub energy storage chamber 521 gradually changes phase along the decreasing direction; and/or the thickness of the heat radiating fin 572 is reduced along the circumferential direction of the inner pipe 56, so that the thermal attenuation of the heat radiating fin 572 is increased along the aforementioned reduction direction, and the energy storage liquid in the sub energy storage cavity 521 is gradually changed in phase along the reduction direction.

In the first embodiment, please refer to fig. 6 to 10, the inner tube 56 and the outer tube 53 are concentrically arranged, that is, the central axis of the inner tube 56 coincides with the central axis of the outer tube 53, so that the whole energy storage device 5 is relatively balanced, easy to manufacture and long in service life. At this time, the phase change sequence of the energy storage material in different regions is controlled by adjusting at least one of the structure or the density of the heat conducting sheet 57.

Specifically, as shown in fig. 6 to 10, in a direction from one heat transfer sheet 571 to another heat transfer sheet 571 adjacent to the one heat transfer sheet 571, the arrangement density of the plurality of heat dissipation fins 572 is decreased, and/or the length of the plurality of heat dissipation fins 572 is decreased. Therefore, the heat sink 572 has a large sum of heat transfer areas of the heat sink 572 in a region having a large density or a long length, and the region having a large heat transfer area changes phase first and then changes phase in a region having a small heat transfer area; so that the energy storage material gradually changes phase along the arrow direction shown in fig. 8, and the energy storage device 5 is prevented from deforming or cracking.

Specifically, the length of the heat dissipating fins 572 is the same along the circumferential direction of the inner tube 56, and the arrangement density between the adjacent heat conductive fins 57 is reduced, that is, the included angle between the adjacent heat conductive fins 57 is increased. The smaller the included angle is, the smaller the cavity between two adjacent heat conducting fins 57 is, and the faster the energy storage material in the cavity obtains cold or heat, the earlier the phase change occurs. The included angle between the heat conducting fins 57 includes an included angle between the adjacent heat conducting fins 571 and the heat dissipating fins 572, and an included angle between two adjacent heat dissipating fins 572.

Alternatively, the angles between adjacent heat-conducting fins 57 are the same in the circumferential direction of the inner tube 56, and the length of the heat sink 572 is reduced. The longer the length of the heat sink 572 is, the larger the heat transfer area is, and the faster the energy storage material adjacent to the heat sink acquires cold or heat, the earlier the phase change occurs. Referring to fig. 7, the longer the length La of the heat sink 572, the shorter the distance Lb of the heat sink 572 from the housing 51; for example, Lb1 is less than Lb 2.

Preferably, as shown in fig. 7 to 9, along the circumferential direction of the inner tube 56, an included angle between adjacent heat conducting fins 57 is increased, the length of the heat radiating fin 572 is decreased, and the speed difference of obtaining the cold or heat in different areas is larger, which is more beneficial to the gradual phase change.

Further, the thickness of the heat-conducting fin 57 is gradually reduced along the circumferential direction of the inner tube 56, and the greater the thickness of the heat-conducting fin, the smaller the thermal attenuation thereof, the smaller the thermal resistance thereof, and the faster the heat transfer rate, thereby achieving the above-described technical effects.

Further, based on the above specific embodiment, the outer tube 53 has a first end and a second end located at opposite sides of a central axis thereof, the heat conducting sheet 57 includes two heat conducting sheets 571 extending towards the first end and the second end respectively, and the two heat conducting sheets 571 divide the energy storage cavity 52 into two sub energy storage cavities 521 symmetrically arranged; the heat radiating fins 572 in the two sub energy storage chambers 521 are symmetrically arranged relative to the heat transfer fin 571. Therefore, the phase change speeds of the energy storage liquids in the two sub energy storage cavities 52 are the same from the first end to the second end, that is, the phase change speeds of the energy storage liquids on the two sides of the two heat transfer sheets 571 are substantially the same, so that the heat transfer sheets 571 can be prevented from deforming or breaking.

Referring to fig. 8, the energy storage material at each point in the energy storage cavity 52 obtains cold or heat from the inner tube 56, the heat conducting fin 57 and the outer tube 53 adjacent thereto, and the arrows in fig. 8 illustrate the sequence of obtaining energy at different points. In the use process, when the energy storage device 5 is installed, the side, with the higher density, of the heat conducting sheet 57 is arranged at the lower part, and the side, with the lower density, of the heat conducting sheet 57 is arranged at the upper part, so that the liquid or gaseous energy storage material flows upwards, and pipe expansion is avoided.

Taking the example of charging the energy storage device 5 with cold from the inner tube 56, between every two heat conducting fins 57, the faster the speed of obtaining cold from the energy storage material in the area closer to the inner tube 56 is, the earlier crystallization occurs; the faster the energy storage material in the region with the higher density of the heat conducting fin 57 acquires heat or cold, the earlier the crystallization occurs; therefore, the energy storage material gradually changes phase according to the direction indicated by the arrow, and gas and liquid can effectively flow upwards, so that pipe expansion is effectively avoided.

In addition, referring to fig. 11 to 16, the inner tube 56 and the outer tube 53 are eccentrically disposed, that is, a central axis of the inner tube 56 is offset from a central axis of the outer tube 53.

Specifically, the outer tube 53 has a first end and a second end located on opposite sides of a central axis thereof, and after the inner tube 56 is offset toward the first end, the heat exchange speed between the energy storage material located on the side where the first end is located and the inner tube 56 is faster than the heat exchange speed between the energy storage material located on the side where the second end is located and the inner tube 56. If the inner tube 56 is connected with the cold charging unit, the energy storage material on the side where the first end is located is fast in cooling speed, and phase change occurs firstly; the energy storage material on the side of the second end is cooled at a low speed and then undergoes phase change, so that the energy storage material in the energy storage cavity 52 can be effectively controlled to gradually undergo phase change from the first end to the second end, and deformation or spalling of the energy storage device 5 caused by disorder of the phase change direction is avoided.

In a second embodiment, referring to fig. 11 or 12, the offset distance between the central axis of the inner tube 56 and the central axis of the outer tube 53 is not greater than a threshold value L1, and the heat conduction fins 57 extend from the inner tube 56 radially outward of the inner tube 56.

In a specific embodiment, as shown in fig. 11, along the circumferential direction of the inner tube 56, the included angles between the adjacent heat conducting fins 57 are equal, and the lengths of the heat radiating fins 571 are the same, which is also beneficial for the energy storage material to gradually change phase on the basis of the eccentric arrangement of the inner tube 56.

The heat conducting sheet 57 comprises two heat transfer sheets 571, and the two heat transfer sheets 571 divide the energy storage cavity 52 into two sub energy storage cavities 521; the heat conducting fin 57 further includes a plurality of heat radiating fins 572 connected to the inner tube 56 and located in the sub energy storage cavities 521, a gap is formed between the heat radiating fins 572 and the outer shell 51, and in each sub energy storage cavity 521, the plurality of heat radiating fins 572 are uniformly arranged along the circumferential direction of the inner tube 56.

Preferably, the heat dissipation fins 572 in the two sub energy storage chambers 521 are symmetrically arranged relative to the heat transfer fins 571.

As shown in fig. 12, the heat sink 572 is disposed in the same manner as in the embodiments shown in fig. 7 to 9, and is not described herein again. On the basis that the inner tube 56 is eccentrically arranged, the length or arrangement density of the radiating fins 572 is reduced, which is more beneficial to the energy storage material to gradually generate phase change.

In a third embodiment, please refer to fig. 13 to 16, the inner tube 56 is offset from the central axis of the outer tube 53 toward the first end, and the offset distance is not less than the threshold L2; at this time, the offset distance of the inner tube 56 is large, and the amount of cold or heat carried by the inner tube 56 is far greater than that of the heat conducting fin 57, so that the amount of heat or cold obtained by the energy storage material from the inner tube 56, the heat conducting fin 57 and the outer tube 53 tends to be reduced from the first end to the second end; the energy storage material is enabled to gradually change phase along one direction, and deformation or spalling of the energy storage device 5 caused by phase change from multiple directions to the middle is avoided.

Specifically, as shown in fig. 13, when the offset distance is between the threshold L2 and the threshold L3, L2 is smaller than L3; the fins each extend outwardly from the inner tube 56.

In one embodiment, the energy storage cavity 52 is divided into two sub energy storage cavities 521 symmetrically arranged by two heat transfer fins 571 extending to the first end and the second end, and a plurality of cooling fins 572 are in contact with the inner tube 56 and a gap is formed between the cooling fins 572 and the outer shell 51; in the sub energy charging spaces 111, the length and/or arrangement density of the fins 572 increases from the first end to the second end in the circumferential direction of the inner tube 56.

Specifically, the lengths of the heat dissipating fins 572 are the same from the first end to the second end in the circumferential direction of the inner tube 56, and the included angle between the adjacent heat conductive fins 57 decreases. Or, the included angle between the adjacent heat conducting fins 57 is the same from the first end to the second end along the circumferential direction of the inner tube 56, and the length of the heat conducting fins 57 is increased. Preferably, an included angle between adjacent heat-conducting fins 57 decreases from the first end to the second end in the circumferential direction of the inner tube 56, and the length of the heat-conducting fins 57 increases.

In the above embodiments, because the offset distance of the inner tube 56 is large, the heat or cold obtained by the energy storage material from the inner tube 56, the heat conducting fins 57 and the outer tube 53 tends to decrease from the first end to the second end; the energy storage material is enabled to gradually generate phase change along one direction, and the energy storage device 5 is prevented from deforming or bursting due to phase change from multiple directions to the middle; meanwhile, the energy storage speed of the whole energy storage device 5 is high.

Further, the heat dissipation fins 572 in the two sub energy storage chambers 521 are symmetrically arranged with respect to the heat transfer fins 571.

When the offset distance is not less than the threshold L3, L2 is less than L3, the distance between the inner tube 56 and the outer tube 53 is short, and if the heat dissipation fins 572 extend toward the offset side, the distance between the heat dissipation fins 572 and the outer tube 53 is short, which is not favorable for the flow of the energy storage material in the liquid or gas state; the fins 572 thus extend from the inner tube 56 beyond the first end and away from the inner tube 56.

Specifically, as shown in fig. 14 to 16, the length of the heat sink 572 increases from the first end to the second end, but the heat or cold obtained by the energy storage material from the inner tube 56, the heat conducting fin 57, and the outer tube 53 tends to decrease as a whole.

In a specific use process, the first end of the energy storage cavity 52 is arranged at the lower part, and the second end of the energy storage cavity 52 is arranged at the upper part, so that the liquid or gaseous energy storage material flows upwards, and pipe expansion is avoided.

Further, the outer wall of the housing 51 has a mark indicating the first end and/or the second end; or, the sign indicates the above-mentioned direction that reduces, and when installing energy storage equipment 5, the sign plays the suggestion effect to place the side that the heat transfer density is little downwards, the spalling phenomenon appears.

In addition, based on all the above embodiments, the inner tube 56, the heat conducting fins 57 and the outer tube 53 are integrally formed or integrally arranged, so that the heat transfer effect is far better than that of the post-assembly scheme. And the preferred aluminum or aluminum alloy material has light weight and high heat transfer speed.

The specific processing technique is that the inner tube 56, the heat transfer sheet 571 and the outer tube 53 are integrally formed; forming the communication passage 55 at an edge of the heat-conductive sheet 57 in the axial direction of the inner tube 56, for example, removing a part of the heat-conductive sheet 57 so that the heat-conductive sheet 57 is located inside the outer tube 53; welding the end cap 54 to the housing 51; energy storage materials are injected into the energy storage cavity 52 from the injection port 541, and then the injection port 541 is sealed.

The plurality of energy storage devices 5 may be arranged in a honeycomb manner, a # -shaped manner, or a thousand-island manner.

The energy storage channel is communicated with the energy storage devices 5 in a row by row along the direction of the energy storage chamber 4 towards the storage chamber 3, the inlet 6a of the energy storage channel is positioned at the energy storage device 5 in the row farthest from the storage chamber 3, and the outlet 6b of the energy storage channel is positioned at the energy storage device 5 in the row nearest to the storage chamber 3. The energy-carrying agent enters the energy storage channel from the inlet 6a, exchanges heat with the energy storage device 5 and then flows out from the outlet 6b, so that the energy storage device 5 far away from the storage chamber 3 obtains heat or cold before the energy storage device 5 close to the storage chamber 3, the influence on the temperature in the storage chamber 3 is small in the energy storage process, and the product can be prevented from being frozen.

In one embodiment, the energy storage channel is arranged in the energy storage device 5 in a penetrating manner, that is, the periphery of the energy storage channel is coated by the energy storage device 5 with energy storage materials, so that the heat loss is small.

Specifically, the energy storage assembly further comprises a connecting pipe 6 with a flow passage arranged therein, wherein the connecting pipe 6 comprises a row internal connecting pipe 61 for connecting the flow passages of the energy storage devices 5 in each row in series, and an inter-row connecting pipe 62 for connecting the flow passages of two adjacent energy storage devices 5 in two adjacent rows along the direction of the energy storage chambers towards the energy storage chambers; the flow passage and the flow passage together constitute the energy storage passage. In the embodiment, the energy storage devices 5 of each row are connected in series firstly and then connected in series with the energy storage devices 5 of the adjacent row, the energy carrying agent enters the energy storage channel from the inlet 6a, passes through all the energy storage devices 5 row by row and then flows out from the outlet 6b, the flow rate of the energy carrying agent is large, and the circulating flow speed under the same power source is high.

Or, the energy storage assembly further comprises a connecting pipe 6 with a flow passage arranged therein, and the connecting pipe 6 comprises an inter-row connecting pipe 62 for connecting the flow passages of two corresponding energy storage devices 5 in two adjacent rows; the flow passage and the flow passage together constitute the energy storage passage. In the embodiment, the corresponding energy storage devices in different rows are connected in series, the energy carriers 5 in the same row are connected in parallel, and the energy carriers are divided, so that the energy storage device is suitable for a larger power source and a cold source, but the energy uniformity obtained by all the energy carriers is relatively higher, and partial energy storage devices 5 are prevented from being overcooled.

In the two embodiments, the energy carrier flows in the flow channel of the energy storage device 5, so the energy storage device 5 is made of a material with good corrosion resistance and good thermal conductivity.

Or, the energy storage device 5 includes a flow passage, the energy storage assembly further includes a connecting pipe 6 having a flow passage therein, the connecting pipe 6 includes a row internal connecting pipe 61 penetrating through the flow passage in the plurality of energy storage devices 5 in each row, and an inter-row connecting pipe 62 connecting the row internal connecting pipes 61 in two adjacent rows of the two energy storage devices 5 adjacent to each other in the direction from the energy storage chamber to the storage chamber, and the flow passage constitutes the energy storage passage.

Preferably, the outer wall of the connecting pipe 6 is attached to the inner wall of the flow channel. The term "fit" refers to a gapless fit, where there is no gap between the two within the tolerance of assembly; thus, the heat or reference transfer direction of heat is: the liquid in the connecting pipe 6 → the inner wall of the flow passage → the cold storage liquid in the energy storage means 5; the cold or heat is transferred among liquid, solid and solid, the heat loss is small, the quick and effective heat transfer is ensured, and the heat transfer loss is reduced. For example, the connecting tube 6 and the flow channel are in interference fit, and can be realized through a tube expansion process.

In another embodiment, the energy storage channel is arranged adjacent to the energy storage device 5.

Specifically, a gap 63 is formed between adjacent energy storage devices 5 and extends in the first direction, and the gap 63 forms the energy storage channel. The energy storage assembly further comprises partition plates located between two sides of the energy storage assembly in the first direction and the side walls of the energy storage chambers 4, two rows of gaps 63 are formed between every two adjacent partition plates, and the partition plates on the two sides are arranged along the energy storage chambers 4 towards the direction of the storage chambers 3 in a staggered mode. The energy carrier passes through the gap 63 and exchanges heat with the energy storage material in the energy storage device 5.

For example, in the direction from the energy storage chamber 4 to the storage chamber 3, the partition plate on one side is located between the first row of gaps 63 and the second row of gaps 63, and between the third row of gaps 63 and the fourth row of gaps 63; the partition plate on the other side is positioned between the second evacuation gap 63 and the third row of voids 63; the energy carrying agent sequentially passes through the first row of gaps 63, the second row of gaps 63, the third row of gaps 63 and the fourth row of gaps 63.

In a preferred embodiment, the energy storage chamber is located below the storage chamber 3, the energy storage device 5 located at the bottom obtains heat or cold before the energy storage device 5 located above, and according to the principle that cold air sinks and hot air rises, the temperature influence on the storage chamber 3 in the energy storage process is reduced to the minimum.

And the energy carrying agent enters the energy storage assembly from the inlet 6a, exchanges heat with the energy storage device 5 from bottom to top and then flows out of the energy storage assembly through the outlet 6b, so that the energy storage device 5 positioned at the lower row obtains heat or cold before the energy storage device 5 positioned above the energy storage device 5, and the energy storage device 5 positioned at the lower row can provide heat or cold for the energy storage device 5 positioned above the energy storage device in a heat radiation or contact heat transfer mode, so that the energy storage material at the lower part is ensured to be subjected to phase change before the energy storage material at the upper part, and the phenomenon that the energy storage device 5 is deformed or cracked is avoided.

Energy supply subassembly 8 is used for transmitting the energy that energy storage subassembly is accumulational to storing room 3, keeps fresh to the product that is located it.

Specifically, energy supply subassembly 8 is including the intercommunication energy storage room 4 with energy supply wind channel 81 of locker room 3, drive the air and be in locker room 3 with energy storage room 4 between the circulation energy supply fan 82, energy supply fan 82 all with controller 10 communication connection.

Preferably, the energy supply assembly 8 further includes a temperature sensor (not shown) located in the storage compartment 3 and in communication with the controller 10, and the operating state of the energy supply fan 82 is controlled according to the temperature in the storage compartment 3, so as to supply hot air or cold air to the storage compartment 3 and maintain the temperature thereof within a small range. The operating conditions of the powered fan 82 include, but are not limited to, the wind speed of the fan, the duty cycle of the fan on/off, and the like.

When the energy storage chamber 4 is located below the storage chamber 3, the energy supply air duct 81 includes a first air duct 811 extending in the vertical direction and communicating the energy storage chamber with the storage chamber 3, and an air return opening 812 provided on the air return heat insulation plate 31 at the bottom of the storage chamber 3 and communicating with the energy storage chamber 4, and the first air duct 811 leads to the air outlet of the storage chamber 3 and is located at the top of the storage chamber 3, that is, the first air duct 81 is communicated to the top of the storage chamber 3. Most of products transported in the unit distribution box 100 need to be refrigerated or frozen, and cold air is blown into the storage chamber 3 from the top of the storage chamber 3 through the first air channel 811, so that the principle that the cold air sinks is met, when the products needing refrigeration/freezing are small, the top of the storage chamber 3 is idle, the cold air cannot be directly blown to the products, and the products are prevented from being frozen locally.

The first air channel 811 and at least part of the air return 812 are respectively arranged at two opposite sides of the storage chamber 3, so as to facilitate air circulation.

Further, the return air insulation board 311 includes a top board 311, a bottom board 312, and a circulation cavity 313 located between the top board 311 and the bottom board 312, the return air inlet 812 penetrates through the top board 311 and the bottom board 312 and is communicated with the circulation cavity 313, an auxiliary return air inlet 812 ' is arranged on one side of the top board 311 close to the first air duct 811, air in the storage room 3 can also enter the cold storage room 4 through the auxiliary return air inlet 812 ', the circulation cavity 313, and the return air inlet 812, air in the storage room 3 can also return to the storage room 3 through the return air inlet 812, the circulation cavity 313, and the auxiliary return air inlet 812 ', and therefore the situation that dead corners exist in the storage room 3 and the distribution of air temperature in the storage room 3 is uneven can be effectively avoided.

Preferably, the top plate 311 or the bottom plate 312 is provided with a reinforcing rib 314 having a flow hole 315, which can enhance the strength of the return air insulation plate 31.

Preferably, the energy supply fan 82 is located in the energy storage chamber 4, and does not occupy the space of the storage chamber 3. Of course, the energy supply fan 82 is located in the storage chamber 3, or the energy supply fan 82 is located in the first air duct 811, and air circulation can also be driven.

Preferably, the heat exchanger assembly is located at the top of the storage chamber 3, the heat exchanger assembly comprises the heat exchanger and a heat exchange fan, and the heat exchanger is located on the air outlet side or the air suction side of the fan.

The unit distribution box 100 further comprises a refrigerating unit 9, wherein the refrigerating unit 9 comprises a compressor, a condenser connected with the compressor, and a throttling element connected with the condenser, an inlet of the energy storage channel is connected with the throttling element, and an outlet of the energy storage channel is connected with the compressor; the energy carrier is a refrigerant.

Or, the unit distribution box 100 further includes a refrigeration unit 9 and an energy storage fan, the refrigeration unit includes a compressor, a condenser, a throttling element and an evaporator which are connected to form a circulation loop, the evaporator and the energy storage fan are located on the circulation loop communicated with the energy storage channel, and at this time, the energy carrying agent is cold air passing through the evaporator.

The refrigerating unit 9 is used for providing cold or heat for the energy storage assembly, cold accumulation can be completed by electrifying at any place where a cold charging station is not arranged, meanwhile, the refrigerating unit 9 can also be used for providing cold for the storage chamber 3, and precooling is carried out on products positioned in the storage chamber.

Preferably, the unit distribution box 100 further includes a press cabin 91 located below the energy storage chamber 4, heat dissipation holes 92 are formed in a wall forming the press cabin 91, and the refrigeration unit 9 is located in the press cabin 91. On one hand, the energy storage chamber 4 is arranged between the press cabin 91 and the storage box 4, and the temperature of the storage box 2 cannot be directly influenced by heat released by the refrigerating unit 9 during working; on the other hand, the center of gravity of the entire unit distribution box 100 is shifted downward, so that the unit distribution box can be prevented from falling down during the lifting process.

The unit distribution box 100 further comprises a heating component 7 for providing heat for the storage chamber 3, so that when the temperature of the storage chamber 3 is too low, the temperature of the storage chamber is compensated, or goods are kept warm in a severe cold area.

The heating assembly 7 comprises a heater 71 and a heating fan 72 which are positioned in the storage chamber 3, and of course, when the energy supply fan 82 and the heating fan 72 are both arranged in the storage chamber 3, the two can share the same fan.

Preferably, the heating assembly 7 is disposed adjacent to an air outlet of the first air channel 811 leading to the storage compartment 3, and supplies heat from a region with the lowest temperature in the storage compartment 3, so as to effectively prevent a local supercooling phenomenon.

In the present invention, all the components requiring power consumption, such as the fan and the controller 10, are all components with their own batteries. Preferably, the unit distribution box 100 further includes a battery compartment 101, and a battery assembly 102 located in the battery compartment 101, and the battery assembly 102 is used for uniformly supplying power to other components. The battery compartment 101 is located between the air return opening 812 and the energy storage chamber 4, and the energy supply fan 82 is arranged on a partition plate between the battery compartment 101 and the energy storage chamber 4; the return air and energy storage components provide a cooling effect to the battery assembly 102.

The invention also provides a logistics distribution vehicle, which comprises a vehicle and any one of the unit distribution boxes 100, wherein the vehicle comprises but is not limited to a truck. The unit distribution box 100 is separated from the vehicle, the vehicle can still be used for transporting other products in the processes of loading and unloading goods and pre-cooling/cold filling of the unit distribution box 100, the unit distribution box 100 is not limited to a specific vehicle, and the convenience of combined use is far greater than that of the existing refrigerated vehicle.

In summary, in the unit distribution box 100 of the present invention, the inlet 6a of the energy storage passage is located at the row of energy storage devices farthest from the storage chamber 3, the outlet 6b of the energy storage passage is located at the row of energy storage devices closest to the storage chamber 3, and the energy carrying agent enters from the inlet 6a and exchanges heat with the energy storage devices and then flows out from the outlet 6b, so that the energy storage device far away from the storage chamber 3 obtains heat or cold before the energy storage device near the storage chamber 3 obtains heat or cold, and during the energy storage process, the temperature of the storage chamber 3 is not greatly affected by contrast, and the product can be prevented from being frozen.

It should be understood that although the present description refers to embodiments, not every embodiment contains only a single technical solution, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the technical solutions in the embodiments can also be combined appropriately to form other embodiments understood by those skilled in the art.

The above-listed detailed description is only a specific description of a possible embodiment of the present invention, and they are not intended to limit the scope of the present invention, and equivalent embodiments or modifications made without departing from the technical spirit of the present invention should be included in the scope of the present invention.