阅读说明：本技术 一种快速改变食物温度的传热装置及其制造方法 (Heat transfer device capable of quickly changing food temperature and manufacturing method thereof ) 是由 郭鹏 赵吉勇 龚国红 于 2019-11-13 设计创作，主要内容包括：本发明提供一种快速改变食物温度的传热装置,包括第一板材、第二板材、空腔和储能工质。所述第一板材为高导热装置,置于该传热装置的上层；第一板材下端、空腔、储能工质和第二板材构成高储能装置,置于该传热装置的下层。所述高导热装置与高储能装置相互嵌入,能够快速吸收食物中的热量或释放传热装置中的热量,并把热量均摊开来,以使食物快速达到目标温度。本发明还提供该传热装置的制造方法,第一板材与第二板材仅需通过热压、焊接或粘接的方式就能实现密封连接；或者,第一板材与第二板材一体成型,通过挤压方式构成该传热装置主体,端盖可通过粘接、焊接或螺丝紧固方式与装置主体形成密闭结构。(The invention provides a heat transfer device capable of quickly changing the temperature of food, which comprises a first plate, a second plate, a cavity and an energy storage working medium. The first plate is a high heat conduction device and is arranged on the upper layer of the heat transfer device; the lower end of the first plate, the cavity, the energy storage working medium and the second plate form a high energy storage device which is arranged on the lower layer of the heat transfer device. The high heat conduction device and the high energy storage device are embedded into each other, so that heat in food can be absorbed quickly or released quickly, and the heat is spread out uniformly, so that the food can reach the target temperature quickly. The invention also provides a manufacturing method of the heat transfer device, wherein the first plate and the second plate can be hermetically connected only by hot pressing, welding or bonding; or the first plate and the second plate are integrally formed, the heat transfer device main body is formed in an extrusion mode, and the end cover and the device main body can form a closed structure in an adhesion, welding or screw fastening mode.)

1. A heat transfer unit for rapidly changing the temperature of a food item, comprising:

a first plate located on an upper layer of the heat transfer device;

the second plate is positioned at the lower layer of the heat transfer device, and the middle of the second plate is arranged in a concave shape and is connected with the edge of the first plate in a sealing way;

the first plate and the second plate are connected to form a cavity;

and the energy storage working medium is filled in the cavity and is in contact with the lower end of the first plate.

2. A heat transfer device as claimed in claim 1, wherein the heat transfer device has the appearance of a plate or a butterfly.

3. The heat transfer device of claim 1, wherein the first sheet has channels therein, the channels being filled with a heat transfer medium.

4. The heat transfer device of claim 1, wherein the lower end of the first plate has a convex structure toward the second plate.

5. A heat transfer device as claimed in claim 1, wherein the upper surface of the first sheet material is coated with a highly thermally conductive material.

6. The heat transfer device of claim 1, wherein the first plate is made of metal, ceramic or polymer.

7. The heat transfer device of claim 1, wherein the energy storage working fluid is an inorganic hydrated salt, paraffin, or an organic energy storage material.

8. The heat transfer device of claim 1, wherein the cavity has end caps at both ends thereof, and the end caps are bonded, welded or screwed to the first and second plates to form a closed structure.

9. The manufacturing method of the heat transfer device for quickly changing the temperature of food is characterized in that a heat transfer working medium is hermetically filled in a first plate, an energy storage working medium is filled in a concave part of a second plate, and the edges of the first plate and the second plate are hermetically connected in a hot pressing, welding or bonding mode to form the closed heat transfer device;

or, a layer of high-heat-conductivity material is attached to the upper surface of the first plate in a spraying, coating, bonding or vapor deposition mode, the energy storage working medium is filled in the concave position of the second plate, and the edges of the first plate and the second plate are hermetically connected in a hot pressing, welding or bonding mode to form the closed heat transfer device.

10. A manufacturing method of a heat transfer device capable of quickly changing the temperature of food is characterized in that a first plate and a second plate are integrally formed into a heat transfer device main body through an extrusion forming process, after a heat transfer working medium is filled in an upper layer and an energy storage working medium is filled in a lower layer, an end cover is connected with the device main body through bonding, welding or a screw fastening mode to form the closed heat transfer device.

Technical Field

The invention belongs to the technical field of heat transfer, and particularly relates to a heat transfer device capable of quickly changing the temperature of food and a manufacturing method thereof.

Background

Frozen foods are typically stored in an environment at-18 ℃ for bacteriostatic needs. For such food, it is necessary to thaw it before cooking. The common thawing methods have various advantages and disadvantages, such as: (1) frozen food is unfrozen in a natural environment, energy is saved, but the required time is long, and bacteria are easy to breed; (2) frozen food is unfrozen in a microwave oven quickly and conveniently, but unfreezing is not uniform, and energy consumption is high; (3) the food is soaked in water and thawed quickly, but the food is easily polluted.

On the other hand, the temperature of freshly cooked food is usually around 100 ℃, while the optimal consumption temperature of food is usually between 50 ℃ and 80 ℃. It is also a requirement that the food be cooled as quickly as possible to a temperature at which it can be consumed.

Disclosure of Invention

In view of the above disadvantages, the present invention provides a heat transfer device for rapidly changing the temperature of food and a method for manufacturing the same, which embeds a high heat transfer device and a high energy storage device into each other, thus improving the efficiency of changing the temperature of food.

A heat transfer device for rapidly changing the temperature of a food, the heat transfer device comprising:

a first plate located on an upper layer of the heat transfer device;

the second plate is positioned at the lower layer of the heat transfer device, and the middle of the second plate is arranged in a concave shape and is connected with the first plate in a sealing way;

the first plate and the second plate are connected to form a cavity;

and the energy storage working medium is filled in the cavity and is in contact with the lower end of the first plate.

Preferably, the heat transfer device has a plate or butterfly shape in appearance.

Preferably, the first plate is internally provided with a channel, and the channel is filled with a heat transfer working medium.

Preferably, the lower end of the first plate is provided with a convex structure towards the direction of the second plate.

Preferably, the first plate material is coated with a high thermal conductive material on an upper surface thereof.

Preferably, the first plate material is made of metal, ceramic or polymer material.

Preferably, the energy storage working medium is inorganic hydrated salt, paraffin or an organic energy storage material.

Preferably, the cavity is provided with end covers at two ends, and the end covers are connected with the first plate and the second plate through bonding, welding or screw fastening.

The manufacturing method of the heat transfer device for quickly changing the temperature of food is characterized in that a heat transfer working medium is hermetically filled in a first plate, an energy storage working medium is filled in a concave part of a second plate, and the edges of the first plate and the second plate are hermetically connected in a hot pressing, welding or bonding mode to form the closed heat transfer device;

or, a layer of high-heat-conductivity material is attached to the upper surface of the first plate in a spraying, coating, bonding or vapor deposition mode, the energy storage working medium is filled in the concave position of the second plate, and the edges of the first plate and the second plate are hermetically connected in a hot pressing, welding or bonding mode to form the closed heat transfer device.

A manufacturing method of a heat transfer device capable of quickly changing the temperature of food is characterized in that a first plate and a second plate are integrally formed into a heat transfer device main body through an extrusion forming process, after a heat transfer working medium is filled in an upper layer and an energy storage working medium is filled in a lower layer, an end cover is connected with the device main body through bonding, welding or a screw fastening mode to form the closed heat transfer device.

The technical scheme of the invention provides a heat transfer device capable of quickly changing the temperature of food, which comprises a first plate, a second plate, a cavity formed between the first plate and the second plate and an energy storage working medium filled in the cavity. The first plate is a high-heat-conductivity device and has the characteristics of high heat transfer rate and good temperature uniformity; the high energy storage device is composed of the lower end of the first plate, the cavity, the energy storage working medium and the second plate, and the high heat conduction device and the high energy storage device are embedded into each other, so that heat in food can be absorbed quickly or released quickly, and the heat is spread out uniformly, and the food can reach the target temperature quickly. The invention also provides a manufacturing method of the heat transfer device, which is simple and practical and has obvious effect.

Drawings

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

Fig. 1 is an operational view of a heat transfer device for rapidly changing the temperature of food according to the present invention.

FIG. 2 is a schematic cross-sectional view of a heat transfer device for rapidly changing the temperature of food according to an embodiment of the present invention.

Fig. 3A to 3D are schematic views illustrating a channel structure in the first plate of fig. 2.

Fig. 4 is a schematic cross-sectional view illustrating a heat transfer device for rapidly changing the temperature of food according to another embodiment of the present invention.

Fig. 5A to 5C are schematic views of the protrusion structure in fig. 4.

Fig. 6 is a schematic cross-sectional view and an exploded view illustrating a heat transfer device for rapidly changing the temperature of food according to still another embodiment of the present invention.

The reference numbers illustrate: 1-heat transfer device, 01-food, 10-first plate, 11-upper surface of first plate, 111-upper plate, 112-lower plate, 113-channel, 114-heat transfer working medium, 12-convex structure, 13-high heat transfer device, 20-second plate, 21-high energy storage device, 22-end cover, 30-cavity, 40-energy storage working medium and 50-high heat conduction material.

The implementation, functional features and advantages of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

It should be noted that if the embodiments of the present invention have been described with reference to "first", "second", etc., the description of "first", "second", etc. is for descriptive purposes only and is 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 at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

Referring to fig. 1, the heat transfer device 1 includes a first plate 10, a second plate 20, a cavity 30 formed between the first plate 10 and the second plate 20, and an energy storage working medium 40.

The first plate 10 is arranged on the upper layer of the heat transfer device, and the upper surface 11 of the first plate 10 is in sufficient contact with the food 01 so as to exchange heat with the food 01; the lower end of the first plate is provided with the convex structure 12, so that the contact area between the first plate and the energy storage working medium 40 is increased, and heat can be rapidly conducted between the energy storage working medium 40 and the first plate 10 as well as between the first plate and the food 01.

The middle of the second plate 20 is recessed, and the edge of the second plate 20 is correspondingly connected with the edge of the first plate 10.

The cavity 30 is formed by the first sheet 10 and the second sheet 20 being hermetically connected.

The energy storage working medium 40 is hermetically filled in the cavity 30 and is in contact with the raised structure 12 at the lower end of the first plate 10.

It is understood that the food 01 contacts the upper surface 11 of the first plate 10 and heat exchange is performed after the contact due to a temperature difference therebetween. Meanwhile, the first plate 10 can rapidly transmit the exchanged energy to a place far away from the food 01 on the first plate 10 by utilizing the characteristics of high heat conduction capability and low heat resistance of the first plate 10, and a large-range low-temperature gradient area, even a uniform-temperature area, is formed on the first plate 10, and the formation of the low-temperature areas improves the heat exchange capability of the first plate 10 and the surrounding environment, for example, the upper surface 11 of the first plate 10 is in contact with air, and the food temperature change is accelerated through the heat convection and the heat radiation between the first plate 10 and the air, and the first plate 10 can disperse the energy exchanged from the food 01 to the surrounding environment. That is, the first plate 10 increases the heat exchange capability between the food 01 and the surrounding environment by using the characteristic of strong heat conductivity (e.g., high heat conductivity), thereby achieving the effect of rapidly changing the temperature of the food. On the other hand, the convex structure 12 at the lower end of the first plate 10 is also in contact with the energy storage working medium 40, and heat exchange can be performed between the convex structure and the energy storage working medium 40, so that energy obtained from food 01 can be stored in the energy storage working medium 40.

Further, the high thermal conductivity device 13 can form a large-scale low temperature gradient region, even a uniform temperature region, on the heat transfer device 1 by utilizing the characteristics of high thermal conductivity and low thermal resistance, so that the heat exchange capability between the high thermal conductivity device 13 and the high energy storage device 21 is increased, and a plurality of wave, sawtooth and stripe structures can be arranged between the high thermal conductivity device 13 and the high energy storage device 21 to increase the contact area between the two devices, thereby enhancing the heat exchange capability between the two devices. The high energy storage device 21 contains an energy storage working medium 40 with high specific heat capacity, and after absorbing heat, the temperature change of the energy storage working medium is smaller than that of a substance with low specific heat capacity, so that the energy storage working medium can continuously absorb heat and can be stored in the device. That is, the high thermal conductive device 13 conducts the energy exchanged from the food to the energy storage device 21 for storage, thereby achieving the effect of rapidly changing the temperature of the food.

The technical scheme of the invention provides a heat transfer device capable of quickly changing the temperature of food, which comprises a first plate, a second plate, a cavity formed between the first plate and the second plate and an energy storage working medium filled in the cavity. The heat transfer devices are of an upper and lower laminated structure and are embedded into each other to form an integral device. The upper layer of the device is a high heat conduction layer and is used for contacting food; the lower layer is a high energy storage layer for storing heat. This heat transfer device is when being used, places for the level usually, because the air mobility of contacting with the upper strata is better, so can exert the upper strata and be the characteristics of high heat-conducting layer, make high heat-conducting layer and air carry out abundant heat transfer, because the lower floor receives the influence of placing the mesa, its air mobility on every side is relatively poor, and the heat convection effect is relatively poor promptly, consequently arranges high energy storage layer in the lower floor, utilizes the heat transfer of conduction between high heat-conducting layer and the high energy storage layer to strengthen whole heat transfer device's heat transfer ability.

In an embodiment of the present invention, please refer to fig. 2, in the embodiment, the first plate 10 is a double-layer composite plate, but may be a single-layer or multi-layer plate structure in other embodiments. The first plate 10 may be made of a metal material or a polymer material, and an aluminum material having a good thermal conductivity is preferably used here. The upper surface of the first plate 10 is flat and is used for contacting food, a closed channel 113 with a specific structure is formed between the upper layer plate 111 and the lower layer plate 112 of the first plate 10, and the channel 113 is provided with a convex structure 12 corresponding to the lower end of the first plate 10. The edges of the upper sheet 111, the lower sheet 112 and the second sheet 20 are joined together by heat pressing, welding or bonding. A method of making a high heat transfer device is disclosed in application No. 201721039920. X. According to the method, a heat transfer working medium 114 is added into the channel 113, and the heat transfer working medium 114 is sealed in the channel 113, so that the upper-layer plate 111, the lower-layer plate 112, the channel 113 and the heat transfer working medium 114 form the high heat-conducting device 13. Due to the effect of the heat transfer working medium 114, when the first plate 10 is locally heated or cooled, the first plate 10 can rapidly transfer energy to other areas on the first plate 10, so that a temperature equalization effect is formed on the first plate 10, and the energy is dissipated into the air through convection heat transfer and radiation heat transfer. A closed cavity 30 is formed between the lower plate 112 and the second plate 20, an energy storage working medium 40 is added into the cavity 30, and the energy storage working medium 40 is preferably inorganic hydrated salt such as nitrate, carbonate, phosphate or acetate, which is easily available and has moderate cost, and paraffin and the like or organic energy storage materials can be used. The lower plate 112, the second plate 20, the cavity 30 and the energy storage liquid 40 form a high energy storage device 21. The energy storage working medium 40 is in contact with the protruding structures 12 on the lower plate 112, and the energy obtained by the first plate 10 can be transmitted to the energy storage working medium 40.

As shown in fig. 3A to 3D, which are schematic views of the channel structure in the first plate in fig. 2, the channel 113 structure formed between the upper plate 111 and the lower plate 112 may be a hexagonal mesh structure (fig. 3A), a cross-shaped mesh structure (fig. 3B), a serpentine structure (fig. 3C), a circular mesh structure (fig. 3D), or a mesh structure formed by communicating other geometric figures. A hexagonal network structure is preferred here.

Fig. 4 is a schematic cross-sectional view illustrating a heat transfer device for rapidly changing the temperature of food according to another embodiment of the present invention. The upper surface of the first plate 10 has a layer of high thermal conductivity material 50, such as a layer of nano-carbon coating or graphene, the high thermal conductivity material 50 can be attached to the upper surface 11 of the first plate 10 by spraying, coating, bonding or vapor deposition, and the material of the first plate 10 can be metal, ceramic, or polymer material, and here, the metal material aluminum or aluminum alloy is preferred. The first sheet material 10 is provided at its lower end with raised formations 12 which may be formed by casting or forging. The first plate 10 and the second plate 20 are connected to form a sealed cavity, and an energy storage working medium 40 is arranged in the cavity, wherein the energy storage working medium 40 is preferably inorganic hydrated salt, paraffin or the like or an organic energy storage material. The convex structure 12 is in contact with the energy storage working medium 40. When food is placed on the upper surface of the heat conduction device 1, the high heat conduction material 50 rapidly transmits energy to other areas on the first plate 10, and dissipates the energy into the air through convection heat transfer and radiation heat transfer, and simultaneously transmits the energy to the first plate 10, and the convex structures 12 on the first plate 10 contact with the energy storage working medium 40 to transmit the energy to the energy storage working medium 40.

Fig. 5 is a schematic structural diagram of the protruding structures 12 in fig. 4, and the protruding structures 12 may be a columnar array (fig. 5A), a concentric rectangular structure (fig. 5B), a grid-like structure (fig. 5C), or other line structures, where the columnar array structure is preferred.

Fig. 6 is a schematic sectional structure (top) and an exploded view (bottom) of a further embodiment of a heat transfer device for rapidly changing the temperature of food in accordance with the present invention. The first plate 10 and the second plate 20 of the heat transfer device 1 are made of the same material and can be integrally formed, the upper layer of the heat transfer device 1 is provided with a channel 113, a heat transfer working medium 114 is arranged in the channel 113, and an energy storage working medium 40 is arranged in the cavity 30. The energy storage working medium is preferably inorganic hydrated salt, paraffin or the like or an organic energy storage material, the lower end of the first plate 10 is provided with a convex structure 12, and the convex structure 12 is in contact with the energy storage working medium 40. The device of this embodiment can be formed by an extrusion process, and an aluminum extrusion process is preferred here, and other metal or polymer material extrusion processes can also be used for forming. The heat transfer device 1 is provided with end caps 22 at two ends, the end caps 22 respectively seal the channel 113 and the cavity 30 to form closed cavities independent from each other, and the sealing manner can be bonding, welding or fastening by screws to tightly connect the end caps 22 and the device 1 together. When food 01 is placed on the upper surface of the heat transfer device 1, the heat transfer working medium 114 is heated to start working, rapidly transfers energy to other areas on the device 1, dissipates the energy into the air through convective heat transfer and radiative heat transfer, and transfers the energy into the energy storage working medium 40 through the protrusion structures 12.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.