阅读说明：本技术 一种新型无冰冷却装置 (Novel ice-free cooling device ) 是由 王碧 黄智� 朱晓西 邵晓珊 梁敏 于 2021-09-16 设计创作，主要内容包括：本发明公开了一种新型无冰冷却装置,属于冷却、保温技术领域,具体涉及一种具备示温、自动固定功能的冷却装置,该冷却装置包括导热金属块和滑动固定盖,其中：导热金属块上均匀开设有多个工作孔,导热金属块的两侧设置有安装所述滑动固定盖用的滑槽,导热金属块靠近滑动固定盖的一端表面设置有定磁力片；滑动固定盖的水平板上均匀开设有多个与工作孔对应的固定孔,滑动固定盖的挡板内表面上设置有动磁力片,定磁力片和动磁力片采用同极布置。与现有技术相比,本发明一方面利用磁片斥力产生的微小位移确保了离心管、分离管等管体可靠固定、避免了管体滑落；另一方面在导热金属块上设置了示温装置解决了传统冰盒工作状态难预估的技术难题。(The invention discloses a novel ice-free cooling device, which belongs to the technical field of cooling and heat preservation, and particularly relates to a cooling device with temperature indicating and automatic fixing functions, wherein the cooling device comprises a heat conducting metal block and a sliding fixing cover, wherein: a plurality of working holes are uniformly formed in the heat-conducting metal block, sliding grooves for mounting the sliding fixing cover are formed in two sides of the heat-conducting metal block, and a fixed magnetic sheet is arranged on the surface of one end, close to the sliding fixing cover, of the heat-conducting metal block; a plurality of fixing holes corresponding to the working holes are uniformly formed in the horizontal plate of the sliding fixing cover, the inner surface of the baffle plate of the sliding fixing cover is provided with a dynamic magnetic sheet, and the fixed magnetic sheet and the dynamic magnetic sheet are arranged in the same pole. Compared with the prior art, the invention ensures that the tube bodies such as a centrifuge tube, a separation tube and the like are reliably fixed and the tube bodies are prevented from sliding off by utilizing the micro displacement generated by the repulsion force of the magnetic sheets; on the other hand, the temperature indicating device is arranged on the heat conducting metal block, so that the technical problem that the working state of the traditional ice box is difficult to predict is solved.)

1. A novel ice-free cooling device is characterized by comprising a heat-conducting metal block (1) and a sliding fixing cover (2), wherein:

the heat-conducting metal block (1) is of a metal hollow shell structure, the interior of the heat-conducting metal block (1) is hermetically filled with a phase-change material, a plurality of working holes (101) are uniformly formed in the heat-conducting metal block (1), sliding grooves (102) for mounting the sliding fixing cover (2) are formed in two sides of the heat-conducting metal block (1), and a fixed magnetic force sheet (103) is arranged on the surface of one end, close to the sliding fixing cover (2), of the heat-conducting metal block (1);

the sliding fixing cover (2) is composed of a horizontal plate (201), sliding plates (202) and a baffle (203), a plurality of fixing holes (204) corresponding to the working holes (101) are uniformly formed in the horizontal plate (201), the tops of the two sliding plates (202) are respectively fixed on two sides of the horizontal plate (201), the bottoms of the two sliding plates (202) are inwards bent horizontally to form an L-shaped structure, the L-shaped structure is slidably installed in a sliding groove (102), the baffle (203) is vertically installed at one end, far away from the horizontal plate (201), of the horizontal plate (201), and a dynamic magnetic sheet (205) is arranged on the inner surface of the baffle (203);

the fixed magnetic force sheet (103) and the moving magnetic force sheet (205) are arranged in the same pole, and a repulsive force is generated when the fixed magnetic force sheet (103) and the moving magnetic force sheet (205) are close to each other;

when the sliding fixing cover (2) moves to the head along the sliding groove (102) under the action of external thrust, the fixing hole (204) and the working hole (101) are concentrically arranged; after the external thrust is removed, the fixed hole (204) generates relative displacement relative to the working hole (101) under the action of the repulsive force of the fixed magnetic sheet (103) and the movable magnetic sheet (205).

2. The novel ice-free cooling device as claimed in claim 1, wherein the diameter and the hole spacing of the working hole (101) and the fixing hole (204) are consistent, and an elastic sleeve (206) is further sleeved on the fixing hole (204).

3. The novel ice-free cooling device as claimed in claim 2, wherein the working hole (101) and the elastic sleeve (206) can generate relative displacement under the action of magnetic sheet repulsion force to reliably fix the inner pipe (4), and the pipe (4) comprises a centrifuge tube, a separation tube and a test tube.

4. The new ice-free cooling device according to claim 1, characterized in that the bottom of the heat conducting metal block (1) is further provided with a protective pad (104) for skid and freeze prevention.

5. The novel ice-free cooling device as claimed in claim 1, wherein a temperature indicating device (3) is further arranged at the edge of the heat conducting metal block (1), the temperature indicating device (3) is composed of a shell (301) and a transparent cover (302),

the shell (301) and the transparent cover (302) are hermetically arranged to form a temperature indicating cavity;

the temperature indicating cavity is internally painted with a temperature indicating pattern (303) by using a temperature sensitive color changing material, and the temperature indicating pattern (303) is visible within the range of-20 ℃ to 10 ℃.

6. The novel ice-free cooling device as claimed in claim 5, wherein the temperature-sensitive color-changing material is encapsulated by a transparent spherical particle shell by microencapsulation technology, the transparent spherical particle shell has an average particle diameter of 12 μm to 15 μm, and the thickness of the transparent spherical particle shell is 1.2 μm to 1.5 μm.

7. The novel ice-free cooling device of claim 6, wherein the transparent spherical particle shell is made of one of gelatin-gum arabic, melamine resin or urea resin.

8. The novel ice-free cooling device of claim 6, wherein the microencapsulation technique employs an in situ polymerization process.

9. The novel ice-free cooling device as claimed in claim 6, wherein the thermochromic material is prepared by an organic reversible thermochromic compound preparation method and is composed of a leuco agent, a color developing agent, a solvent and an additive, wherein:

the leuco agent is thermosensitive rhodol TF-R₁Or heat-sensitive black Tl-Bl₃₁Or the heat-sensitive black ODB comprises the following components in parts by weight: 1.5 to 2.0 parts by mass;

the color developing agent is bisphenol or p-nitrophenol and comprises the following components in parts by weight: 3.5 to 4.2 parts by mass;

the solvent is dodecanol or palmitic acid, and the mass parts of the solvent are as follows: 35 to 38 parts by mass;

the additive is potassium hydroxide and comprises the following components in parts by weight: 1.0 to 3.0 parts by mass.

10. The novel ice-free cooling device as claimed in claim 1, further comprising an ice box (5), wherein the middle part of the ice box (5) is recessed to form a cooling cavity (501) for mounting the heat-conducting metal block (1), touch grooves (502) are formed in two sides of the cooling cavity (501), and the touch grooves (502) are used for taking the heat-conducting metal block (1).

Technical Field

The invention belongs to the technical field of cooling and heat preservation, and particularly relates to a novel ice-free cooling device.

Background

At present, the requirements of many medical biological reagents and vaccines on the storage temperature are strict, and refrigeration or freezing is needed to keep the biological reagents and vaccines at a certain temperature so as to keep the biological reagents and vaccines active and avoid deterioration and invalidation caused by over-temperature. The conventional preservation method for biological reagents or vaccines in the industry is to directly add ice or add ice bags in an insulation box for insulation, and the insulation mode has the following technical problems: 1) accumulated water is formed after the ice is melted, and the ice is not easy to treat; 2) the test tube is difficult to fix and easy to incline; 3) the temperature uniformity is poor.

Although some technicians have designed a novel ice box and set up a deep hole for accommodating a centrifuge tube and a separation tube on the ice box, the following technical problems still exist: 1) the temperature and state of the ice box cannot be predicted; 2) the pipe body is not firmly fixed in the deep hole and is easy to slide off; 3) the ice box is not easy to take out and easily frosts fingers of an operator at low temperature.

In order to effectively solve the problems and improve the scientific research efficiency, a novel ice-free cooling device is urgently needed to be designed.

Disclosure of Invention

Aiming at the technical problems, the invention provides a novel ice-free cooling device, and compared with the prior art, the ice-free cooling device has the advantages that on one hand, the tubes such as a centrifugal tube, a separation tube and the like are ensured to be reliably fixed by utilizing the micro displacement generated by the repulsion force of magnetic sheets, and the tubes are prevented from sliding off; on the other hand, the temperature indicating device is arranged on the heat conducting metal block, so that the technical problem that the working state of the traditional ice box is difficult to predict is solved.

The invention solves the problems through the following technical means:

the utility model provides a novel ice-free cooling device which characterized in that, includes heat conduction metal block and the fixed lid of slip, wherein: the heat conducting metal block is of a metal hollow shell structure, the interior of the heat conducting metal block is hermetically filled with a phase-change material, a plurality of working holes are uniformly formed in the heat conducting metal block, sliding grooves for mounting the sliding fixing cover are formed in two sides of the heat conducting metal block, and a fixed magnetic force sheet is arranged on the surface of one end, close to the sliding fixing cover, of the heat conducting metal block; the sliding fixing cover consists of a horizontal plate, sliding plates and a baffle plate, a plurality of fixing holes corresponding to the working holes are uniformly formed in the horizontal plate, the tops of the two sliding plates are respectively fixed on two sides of the horizontal plate, the bottoms of the two sliding plates are inwards bent horizontally to form an L-shaped structure, the L-shaped structure is slidably mounted in a sliding groove, the baffle plate is vertically mounted at one end, far away from the horizontal plate, of the horizontal plate, and a dynamic magnetic sheet is arranged on the inner surface of the baffle plate; the fixed magnetic force sheet and the movable magnetic force sheet are arranged in the same pole, and repulsion force is generated when the fixed magnetic force sheet and the movable magnetic force sheet are close to each other; when the sliding fixing cover moves to the head along the sliding groove under the action of external thrust, the fixing hole and the working hole are concentrically arranged; after the external thrust is removed, the fixed hole generates relative displacement relative to the working hole under the action of the repulsion force of the fixed magnetic sheet and the moving magnetic sheet.

Preferably, the diameters and hole intervals of the working hole and the fixing hole are consistent, and the fixing hole is further sleeved with an elastic sleeve.

Preferably, the working hole with have elastic sleeve can produce relative displacement, with reliably fixed inside pipe fitting under the effect of magnetic force piece repulsion, the pipe fitting includes centrifuging tube, separator tube and test tube.

Preferably, the bottom of the heat-conducting metal block is also provided with a protective pad for preventing skidding and freezing.

Preferably, a temperature indicating device is further arranged at the edge of the heat conducting metal block, and the temperature indicating device is composed of a shell and a transparent cover;

the shell and the transparent cover are hermetically arranged to form a temperature indicating cavity;

the temperature indicating cavity is internally painted with a temperature indicating pattern by using a temperature sensitive color changing material, and the temperature indicating pattern can be seen in the range of-20 ℃ to 10 ℃.

Preferably, the thermosensitive color-changing material is encapsulated by a transparent spherical particle shell by microencapsulation technology, the average particle diameter of the transparent spherical particle shell is 12-15 μm, and the thickness of the transparent spherical particle shell is 1.2-1.5 μm.

Preferably, the transparent spherical particle shell is made of one of gelatin-Arabic gum, melamine resin or urea resin.

Preferably, the microencapsulation technique is an in situ polymerization method.

Preferably, the thermochromic material is prepared by adopting a preparation method of an organic reversible thermochromic compound and is prepared from a leuco agent, a color developing agent, a solvent and an additive, wherein:

the leuco agent is thermosensitive rhodol TF-R₁Or heat-sensitive black Tl-Bl₃₁Or the heat-sensitive black ODB comprises the following components in parts by weight: 1.5 to 2.0 parts by mass;

the color developing agent is bisphenol or p-nitrophenol and comprises the following components in parts by weight: 3.5 to 4.2 parts by mass;

the solvent is dodecanol or palmitic acid, and the mass parts of the solvent are as follows: 35 to 38 parts by mass;

the additive is potassium hydroxide and comprises the following components in parts by weight: 1.0 to 3.0 parts by mass.

Preferably, the ice box is further included, the middle of the ice box is recessed to form a cooling cavity for mounting the heat-conducting metal block, touch grooves are formed in two sides of the cooling cavity, and the touch grooves are used for taking the heat-conducting metal block.

The novel ice-free cooling device has the following beneficial effects:

1) this heat conduction metal block adopts all metal, high heat conduction material to make, can show the temperature uniformity who promotes cold box, no matter is heat conduction metal block self refrigeration or places on the cold source, and its temperature uniformity will obviously be higher than the ice chest that the PE material was made. Meanwhile, a nonmetal protective pad is arranged on the side face of the heat-conducting metal block, the protective pad can be made of plastic materials or silica gel materials, a traditional ice box is generally stored in a refrigerator or an ice chest, the heat-conducting metal block at the temperature of-20 ℃ can not be directly contacted by hands, and the operation of the ice box can be obviously facilitated after the protective pad is arranged.

2) The heat conducting metal block is provided with a sliding fixing cover, when the sliding fixing cover moves to the head along the sliding groove under the action of external thrust, the fixing hole and the working hole are concentrically arranged, and at the moment, a pipe body can be placed in the sliding fixing cover; after external thrust is removed, under the repulsive force action of the fixed magnetic sheets and the movable magnetic sheets, the fixing holes generate relative displacement relative to the working holes, and the small relative displacement of the upper holes and the lower holes can generate acting force on the contact surface of the inner pipe body so as to reliably clamp the inner pipe body and avoid falling off.

3) The heat conducting metal block is provided with a temperature indicating device, the temperature indicating device utilizes a temperature-sensitive color-changing material to draw a temperature indicating pattern, the temperature indicating pattern is visible within the range of-20 ℃ to 10 ℃, and particularly the temperature indicating pattern gradually fades along with the increase of the temperature, such as: the temperature-sensitive rose red or the temperature-sensitive black material presents clear colors and patterns at the temperature of between 20 ℃ below zero and 0 ℃, the patterns begin to fade along with the increase of the temperature within the range of between 0 ℃ and 10 ℃ and disappear until the temperature is higher than 10 ℃, the working state of the heat-conducting metal block can be visually displayed by utilizing the change of the temperature-indicating patterns, and the instability of the experimental effect caused by the continuous rise of the temperature and the long-time operation is avoided.

4) The novel ice box is equipped with the heat-conducting metal block, the temperature in the heat-insulating box can be maintained below 5 ℃ for a long time by replacing the new ice box, and the foam heat-insulating box can be configured outside the ice box to prolong the service time of the ice box.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a first overall structural schematic of the present invention;

FIG. 2 is a second overall structural schematic of the present invention;

FIG. 3 is a schematic view of a first configuration of a thermally conductive metal block of the present invention;

FIG. 4 is a schematic view of a second structure of the thermally conductive metal block of the present invention;

FIG. 5 is a schematic view of a third configuration of the thermally conductive metal block of the present invention;

FIG. 6 is a schematic view of a first construction of the sliding retaining cap of the present invention;

FIG. 7 is a second structural schematic view of the sliding retaining cap of the present invention;

FIG. 8 is a schematic view of a first configuration of the temperature indicating device of the present invention;

FIG. 9 is a second schematic view of the temperature indicating device of the present invention;

FIG. 10 is a schematic view of a protective pad structure according to the present invention;

FIG. 11 is a schematic view of a first configuration of the ice bin of the present invention;

FIG. 12 is a second structural schematic of the ice bin of the present invention;

fig. 13 is a third structural view of the ice box of the present invention.

The temperature-indicating device comprises a heat-conducting metal block 1, a working hole 101, a sliding groove 102, a magnetic sheet 103, a protective pad 104, a sliding fixing cover 2, a horizontal plate 201, a sliding plate 202, a baffle 203, a fixing hole 204, a moving magnetic sheet 205, an elastic sleeve 206, a temperature-indicating device 3, a shell 301, a lens cover 302, a temperature-indicating pattern 303, a pipe 4, an ice box 5, a cooling cavity 501 and a touch groove 502.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

The present invention will be described in detail below with reference to the accompanying drawings.

Example one

As shown in fig. 1 to 7, a novel ice-free cooling device includes a heat conducting metal block 1 and a sliding fixing cover 2, the sliding fixing cover 2 is slidably installed on the heat conducting metal block 1, a distance between a lower surface of the sliding fixing cover 2 and an upper surface of the heat conducting metal block 1 is 0.5cm to 3cm, the heat conducting metal block 1 is made of metal materials with good heat conductivity, such as aluminum alloy and copper, and the sliding fixing cover 2 can be made of metal materials or non-metal materials.

In the figure, a plurality of working holes 101 are uniformly arranged on a heat conducting metal block 1, sliding grooves 102 for installing sliding fixing covers 2 are arranged on two sides of the heat conducting metal block 1, a fixed magnetic sheet 103 is arranged on the surface of one end, close to the sliding fixing cover 2, of the heat conducting metal block 1, the fixed magnetic sheet 103 is fixed through glue, the sliding fixing cover 2 is composed of a horizontal plate 201, sliding plates 202 and a baffle plate 203, specifically, the sliding fixing cover 2 is of a three-side structure, one side surface is an opening and is designed for sleeving the heat conducting metal block 1, a plurality of fixing holes 204 corresponding to the working holes 101 are uniformly arranged on the horizontal plate 201, the tops of the two sliding plates 202 are respectively fixed on two sides of the horizontal plate 201, the bottoms of the two sliding plates 202 are inwards horizontally bent to form an L-shaped structure, the L-shaped structure is slidably arranged in the sliding grooves 102, the baffle plate 203 is vertically arranged at one end, far away from the horizontal plate 201, and a dynamic magnetic sheet 205 is arranged on the inner surface of the baffle plate 203, in this example, the moving magnetic sheet 205 is fixed by glue.

In the above technical solution, 3 technical details need to be explained:

1) the fixed magnetic force piece 103 and the moving magnetic force piece 205 adopt the same-pole arrangement, and when the fixed magnetic force piece 103 and the moving magnetic force piece 205 approach, a repulsive force is generated, for example: the N pole of the fixed magnetic force sheet 103 faces inwards, and the N pole of the dynamic magnetic force sheet 205 faces outwards;

2) the width of the sliding groove 102 and the thickness of the L-shaped structure need to be appropriate to each other, so as to ensure smooth sliding and no excessive shaking of the gap. Meanwhile, the length of the sliding groove 102 should be designed definitely to ensure that the fixing hole 204 and the working hole 101 are arranged concentrically when the sliding fixing cover 2 moves to the head along the sliding groove 102 under the action of external thrust, and at this time, a centrifugal tube, a separation tube and the like can be installed in the fixing hole 204 and the working hole 101;

3) the diameter of working hole 101 and fixed orifices 204, hole interval are unanimous, can also overlap on the fixed orifices 204 and be equipped with elastic sleeve 206, get rid of outside thrust after, under fixed magnetic sheet 103 and the effect of moving magnetic sheet 205 repulsion, fixed orifices 204 produces relative displacement for working hole 101, and the small relative displacement in upper and lower hole can produce the effort to the contact surface of inside body to reliably press from both sides tight inside body, avoid it to drop.

It should be further noted that the heat conducting metal block 1 is a metal hollow shell structure, and the interior of the heat conducting metal block is hermetically filled with the phase change material, in this example, the aperture of the working hole 101 is 3cm to 8cm, and the depth H of the working hole 101 is 1/2 to 2/3 of the thickness D of the heat conducting metal block 1.

EXAMPLE III

In fig. 8, the edge of heat conduction metal block 1 still is provided with temperature indicating device 3, and temperature indicating device 3 adopts mercury thermometer and its casing, utilizes mercury thermometer can accurately master the operating condition of heat conduction metal block 1, avoids long-time operation, the temperature lasts and risees, leads to the experimental effect unstable.

Example four

In fig. 8, a temperature indicating device 3 is further disposed at the edge of the heat conducting metal block 1, the temperature indicating device 3 is composed of a housing 301 and a transparent cover 302, and the housing 301 and the transparent cover 302 are hermetically mounted to form a temperature indicating cavity; the temperature indicating pattern 303 is drawn by temperature-sensitive color-changing materials in the temperature indicating cavity, and the temperature indicating pattern 303 can be seen in the range of-20 ℃ to 10 ℃. In this example, the temperature indicating pattern gradually fades with the increase of the temperature, specifically, the thermosensitive rose red or thermosensitive black material presents clear color and pattern at-20 ℃ to 0 ℃, the pattern begins to fade with the increase of the temperature within the range of 0 ℃ to 10 ℃ and begins to disappear until the temperature is above 10 ℃, the working state of the heat conducting metal block can be visually displayed by utilizing the change of the temperature indicating pattern, and the instability of the experimental effect caused by long-time operation and continuous rise of the temperature is avoided.

The thermosensitive color-changing material is encapsulated by a transparent spherical particle shell by microencapsulation technology, wherein the average particle diameter of the transparent spherical particle shell is 12-15 mu m, and the thickness of the transparent spherical particle shell is 1.2-1.5 mu m. The transparent spherical particle shell is made of one of gelatin-Arabic gum, melamine resin or urea resin. The microencapsulation technique adopts an in-situ polymerization method.

The true bookIn the example, the thermochromic material adopts a preparation method of an organic reversible thermochromic compound and comprises a leuco agent, a color developing agent and a solvent, wherein: the leuco agent is thermosensitive rhodol TF-R₁Or heat-sensitive black Tl-Bl₃₁Or the heat-sensitive black ODB comprises the following components in parts by weight: 1.5 to 2.0 parts by mass; the color developing agent is bisphenol or p-nitrophenol and comprises the following components in parts by weight: 3.5 to 4.2 parts by mass; the solvent is dodecanol or palmitic acid, and the mass portions are as follows: 35 to 38 parts by mass.

EXAMPLE five

Based on the fourth embodiment, the stability of the color hiding agent and the color developing agent can be remarkably improved by adding the potassium hydroxide into the thermochromic material, repeated freeze thawing is avoided to separate the thermochromic material and the color developing agent out, meanwhile, the color gradient effect is improved, and particularly, when the temperature is higher than 0 ℃, the temperature indicating pattern 303 has a good temperature-dependent fading effect, namely, the pattern gradually fades to disappear along with the increase of the temperature. Specifically, the thermochromic material is prepared by adopting a preparation method of an organic reversible thermochromic compound and is prepared from a leuco agent, a color developing agent, a solvent and an additive, wherein: the color-hiding agent is heat-sensitive black Tl-Bl₃₁The weight portions are as follows: 1.5 to 1.8 parts by mass; the color developing agent is p-nitrophenol and comprises the following components in parts by weight: 3.8 to 4.1 parts by mass; the solvent is dodecanol, and the mass portion is as follows: 36 to 38 parts by mass; the additive is potassium hydroxide and comprises the following components in parts by weight: 1.0 to 1.8 parts by mass. In the embodiment, the temperature-sensitive color-changing material can recover a clear and visible temperature-indicating pattern after being frozen for 20-30 minutes at the temperature of-20 ℃.

Example four

In fig. 10, a protective pad 104 for preventing slipping and freezing is further disposed at the bottom of the heat conducting metal block 1, in this example, a groove is disposed at the bottom of the heat conducting metal block 1, the protective pad 104 is disposed in the groove by glue, and the protective pad 104 is made of a heat-insulating and elastic material, for example: rubber, silicone, and the like. Specifically, a plurality of anti-slip grooves may be equidistantly disposed on the protective pad 104.

EXAMPLE five

As shown in fig. 11 to 13, the ice box 5 is further included, a cooling cavity 501 for installing the heat-conducting metal block 1 is formed in the middle of the ice box 5 in a concave mode, touch grooves 502 are formed in two sides of the cooling cavity 501, the touch grooves 502 are used for taking the heat-conducting metal block 1, the heat-conducting metal block is provided with a novel ice box, the temperature in the heat-insulating box can be maintained below 5 ℃ for a long time through replacing a new ice box, and the foam heat-insulating box can be configured outside the ice box to prolong the service time of the ice box.

In this example, heat conduction metal block 1 is put into ice box 5, and operating personnel can direct contact heat conduction metal block 1's lateral wall through touching groove 502, conveniently takes out it. Meanwhile, the foam heat insulation box can adopt the existing structure, so that heat exchange is reduced, and the service time of the ice box 5 is prolonged.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.