Thermoelectric refrigeration cooling device with high heat exchange efficiency

Abstract

The utility model relates to the field of cooling devices, in particular to a thermoelectric refrigeration cooling device with high heat exchange efficiency, which comprises a packaging bag outer sheet. The cold electrode metal heat exchange sheet is arranged at the upper end of the packaging bag outer sheet, and the upper end of the cold electrode metal heat exchange sheet is fixedly connected with a heat exchange extension sheet; by using the cold electrode metal heat exchange sheet and the thermoelectric refrigeration sheet, low temperature generated at the cold end is quickly transferred to the cold electrode metal heat exchange sheet, the temperature is reduced, an object or a medium in contact with the cold electrode metal heat exchange sheet is cooled, the refrigeration technical effect is quick and controllable, meanwhile, the packaging bag is filled with the phase change material, heat of a body is absorbed and conducted in the phase change process, and the heat exchange efficiency is improved. Under the condition that the thermoelectric refrigeration sheet is not continuously electrified to work, cold energy storage, cold and hot impact reduction and auxiliary cold storage are achieved, the module integration degree is high, the electricity demand is low, the cooling efficiency is high, the loss is small, comfort is high, the overall weight and size are reasonable, and cost is controllable.

Description

Technical Field

[0001] This utility model relates to the field of cooling devices, and in particular to a thermoelectric refrigeration and cooling device with high heat exchange efficiency. Background Technology

[0002] Cooling module technology is mainly based on the principles of thermoelectric cooling, phase change materials, air cooling, water cooling and evaporative cooling. Thermoelectric cooling technology is based on the Peltier effect. When current passes through two different conductors or semiconductor materials, the connection point will absorb or release heat, thereby achieving cooling. Thermoelectric cooling components are powered by batteries and transfer heat away from the human body surface.

[0003] Existing thermoelectric cooling devices have a relatively simple structure. They operate continuously with battery power. High efficiency of the cooling module results in high energy consumption, requiring a large battery. The weight and size of these devices make them unportable. If the overall device is lightweight and compact, the cooling efficiency is low, the cooling time is limited, and daily maintenance is inconvenient.

[0004] Therefore, to address the issues of existing thermoelectric cooling devices having a relatively simple structure, high energy consumption due to high cooling module efficiency, poor portability, and low cooling efficiency if the overall device is lightweight and compact, a thermoelectric cooling device with high heat exchange efficiency can be designed. The low temperature generated at the cold end of the thermoelectric cooling element is quickly transferred to the cold electrode metal heat exchange element, resulting in rapid and controllable cooling effect. The phase change material filled in the encapsulation bag absorbs and conducts body heat during the phase change process, assisting in cold storage. The module has a high degree of integration, low power consumption, high cooling efficiency, low loss, and reasonable overall weight and volume. Utility Model Content

[0005] In order to overcome the problems of existing thermoelectric cooling devices having a simple structure, high energy consumption due to high cooling module efficiency, poor portability, and low cooling efficiency if the overall device is lightweight and compact.

[0006] The technical solution of this utility model is as follows: a thermoelectric cooling device with high heat exchange efficiency, including an outer sheet of a packaging bag; it also includes a cold electrode metal heat exchange plate and a thermoelectric cooling plate. The upper end of the outer sheet of the packaging bag is provided with a cold electrode metal heat exchange plate, and a heat exchange extension plate is fixedly connected to the upper end of the cold electrode metal heat exchange plate. The upper end of the heat exchange extension plate is fixedly connected to an inner sheet of the packaging bag, and a packaging bag pressure ring is fixedly connected to the upper end of the inner sheet of the packaging bag. The thermoelectric cooling plate is fixedly connected to the upper end of the cold electrode metal heat exchange plate and inside the packaging bag pressure ring. An insulation plate is fixedly connected to the upper end of the packaging bag pressure ring and outside the thermoelectric cooling plate, and a hot electrode metal heat exchange plate is fixedly connected to the upper end of the insulation plate.

[0007] Preferably, the outer sheet of the encapsulation bag contacts the body, and the thermoelectric cooling element is electrically connected to the positive and negative terminals of the power supply to form a circuit. The current passing through the thermoelectric cooling element induces the Peltier effect, generating a hot end and a cold end at each end of the thermoelectric cooling element. The heat from the hot end is quickly conducted to the hot electrode metal heat exchange plate and dissipated to the surrounding environment in a timely manner. The low temperature generated at the cold end is quickly transferred to the cold electrode metal heat exchange plate, lowering the temperature and cooling the object or medium in contact with it. At the same time, the encapsulation bag is filled with a phase change material, which absorbs and conducts heat from the body during the phase change process. Cold energy storage is achieved when the thermoelectric cooling element is not continuously powered on, thus assisting in cold storage.

[0008] Preferably, the outer sheet of the packaging bag is made of moisture-wicking and quick-drying fabric, and the outer side of the inner sheet of the packaging bag is provided with heat-insulating material. The outer sheet and the inner sheet of the packaging bag are sealed together by ultrasonic pressing to form a bag.

[0009] Preferably, the upper end of the cold electrode metal heat exchange plate is internally fixedly connected to an installation groove, which is compatible with the thermoelectric cooling plate. The upper end of the cold electrode metal heat exchange plate and the side of the installation groove are provided with four fixing holes. The upper side of the cold electrode metal heat exchange plate is provided with eight positioning holes arranged in a ring array.

[0010] Preferably, a groove is provided on the outer side of the lower end of the cold electrode metal heat exchange plate, and an annular heat-conducting plate is fixedly connected to the lower end of the cold electrode metal heat exchange plate. The cold electrode metal heat exchange plate is immersed in a phase change material with high thermal conductivity.

[0011] Preferably, the heat exchange extension sheet, the inner sheet of the packaging bag, and the packaging bag pressure ring are all provided with the same positioning holes, and the front side of the upper end of the packaging bag pressure ring is symmetrically provided with grooves.

[0012] Preferably, the front end of the thermoelectric cooling element is electrically connected to the positive and negative terminals of the power supply via wires, and the wires and the wire trough are compatible.

[0013] Preferably, the upper end of the heat insulation sheet and the lower end of the heat exchange plate are provided with the same fixing holes, the front side of the lower end of the heat exchange plate is provided with the same groove, and the upper end of the heat exchange plate is fixedly connected with a heat sink.

[0014] The beneficial effects of this utility model are:

[0015] This high-efficiency thermoelectric cooling device utilizes a cold electrode metal heat exchange plate and a thermoelectric cooling plate. Current flowing through the thermoelectric cooling plate induces the Peltier effect, creating a hot end and a cold end at each end. Heat from the hot end is rapidly conducted to the hot electrode metal heat exchange plate and dissipated into the surrounding environment. The low temperature generated at the cold end is quickly transferred to the cold electrode metal heat exchange plate, lowering its temperature and cooling the object or medium in contact with it. The cooling effect is rapid and controllable. Simultaneously, the encapsulated bag is filled with a phase change material, which absorbs and conducts body heat during the phase change process, achieving cold storage even when the thermoelectric cooling plate is not continuously powered. This reduces thermal shock and assists in cold storage. The device features a high degree of modular integration, low power consumption, high cooling efficiency with low loss, strong comfort, reasonable overall weight and size, and controllable cost. Attached Figure Description

[0016] Figure 1 The diagram shown is a three-dimensional representation of the overall structure of the thermoelectric cooling device with high heat exchange efficiency according to this invention. Figure 1 ;

[0017] Figure 2 The diagram shown is a three-dimensional representation of the overall structure of the thermoelectric cooling device with high heat exchange efficiency according to this invention. Figure 2 ;

[0018] Figure 3 The diagram shown is a three-dimensional cross-sectional view of the thermoelectric cooling device with high heat exchange efficiency according to this utility model.

[0019] Figure 4 The diagram shown is a schematic representation of the structure of the cold electrode metal heat exchange plate of the thermoelectric cooling device with high heat exchange efficiency according to this utility model.

[0020] Figure 5 The diagram shown is a schematic representation of the structure of the heat exchange plate of the thermoelectric cooling device with high heat exchange efficiency according to this utility model.

[0021] Explanation of reference numerals in the attached drawings: 1. Outer sheet of the packaging bag; 2. Cold electrode metal heat exchange plate; 3. Heat exchange extension plate; 4. Inner sheet of the packaging bag; 5. Packaging bag pressure ring; 6. Thermoelectric cooling plate; 7. Insulating plate; 8. Hot electrode metal heat exchange plate; 9. Mounting groove; 10. Fixing hole; 11. Positioning hole; 12. Groove; 13. Annular heat-conducting plate; 14. Wire groove; 15. Wire; 16. Heat sink. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Please see Figures 1-5This utility model provides an embodiment of a thermoelectric cooling device with high heat exchange efficiency, including an outer packaging bag 1; it also includes a cold electrode metal heat exchange plate 2 and a thermoelectric cooling plate 6. The cold electrode metal heat exchange plate 2 is disposed at the upper end of the outer packaging bag 1. A heat exchange extension plate 3 is fixedly connected to the upper end of the cold electrode metal heat exchange plate 2. An inner packaging bag 4 is fixedly connected to the upper end of the heat exchange extension plate 3. A packaging bag pressure ring 5 is fixedly connected to the upper end of the inner packaging bag 4. The thermoelectric cooling plate 6 is fixedly connected to the upper end of the cold electrode metal heat exchange plate 2 and inside the packaging bag pressure ring 5. An insulation plate 7 is fixedly connected to the upper end of the packaging bag pressure ring 5 and outside the thermoelectric cooling plate 6. A hot electrode metal heat exchange plate 8 is fixedly connected to the upper end of the insulation plate 7. In use, the outer packaging bag 1... When in contact with the body, the thermoelectric cooling element 6 is electrically connected to the positive and negative terminals of the power supply to form a circuit. The current passing through the thermoelectric cooling element 6 induces the Peltier effect, generating a hot end and a cold end at each end of the thermoelectric cooling element 6. The heat from the hot end is quickly conducted to the hot electrode metal heat exchange plate 8 and promptly dissipated into the surrounding environment. The low temperature generated at the cold end is quickly transferred to the cold electrode metal heat exchange plate 2, lowering the temperature and cooling the object or medium in contact with it. The cooling effect is rapid and controllable. At the same time, the encapsulation bag is filled with phase change material, which absorbs and conducts body heat during the phase change process. Cold energy storage is achieved when the thermoelectric cooling element 6 is not continuously powered, reducing thermal shock and assisting in cold storage. The module has a high degree of integration, low power consumption, high cooling efficiency with low loss, strong comfort, reasonable overall weight and volume, and controllable cost.

[0024] Please see Figure 2 , Figure 3 and Figure 4In this embodiment, the outer sheet 1 of the packaging bag is made of moisture-wicking and quick-drying fabric, and the outer side of the inner sheet 4 of the packaging bag is provided with heat-insulating material. The outer sheet 1 and the inner sheet 4 of the packaging bag are sealed together by ultrasonic pressing to form a bag. The packaging bag is soft, thin, and has a suitable shape and size. When the outer sheet 1 of the packaging bag comes into contact with the body, it maintains a reasonable thermal conductivity by absorbing and retaining appropriate moisture and humidity. The heat-insulating material covering the inner sheet 4 of the packaging bag prevents it from absorbing heat from outside the body. A heat sensor and an automatic temperature control switch can be installed on the part of the outer sheet 1 that comes into contact with the body to collect body surface temperature data to determine whether the thermoelectric cooling element 6 is switched on or off. When the temperature of the outer sheet 1 of the packaging bag drops to a preset temperature, the power is disconnected and the cooling stops. The upper end of the cold electrode metal heat exchange plate 2... An internal mounting groove 9 is fixedly connected to the thermoelectric cooling plate 6. The upper end of the cold electrode metal heat exchange plate 2, located on the side of the mounting groove 9, has four fixing holes 10. The outer side of the upper end of the cold electrode metal heat exchange plate 2 has eight positioning holes 11 arranged in a ring array. The fixing holes 10 and positioning holes 11 facilitate connection and sealing, resulting in a high degree of module integration. The outer side of the lower end of the cold electrode metal heat exchange plate 2 has a groove 12. The lower end of the cold electrode metal heat exchange plate 2 is fixedly connected to an annular heat-conducting plate 13. The cold electrode metal heat exchange plate 2 is immersed in a phase change material with high thermal conductivity. The groove 12 and the annular heat-conducting plate 13 increase the contact area with the phase change material, resulting in high heat conduction efficiency and improved heat dissipation capacity.

[0025] Please see Figure 1 , Figure 2 and Figure 5 In this embodiment, the surfaces of the heat exchange extension sheet 3, the inner sheet of the packaging bag 4, and the packaging bag pressure ring 5 are all provided with the same positioning holes 11. The front side of the upper end of the packaging bag pressure ring 5 is symmetrically provided with wire grooves 14. The fixing holes 10 and the positioning holes 11 facilitate connection and sealing. The front end of the thermoelectric cooling chip 6 is electrically connected to the positive and negative poles of the power supply through wires 15 respectively. The wires 15 and the wire grooves 14 are compatible. The wire grooves 14 facilitate the fixing and limiting of the wires 15. The overall integration is high. The upper end of the heat insulation sheet 7 and the lower end of the hot metal heat exchange sheet 8 are provided with the same fixing holes 10. The front side of the lower end of the hot metal heat exchange sheet 8 is provided with the same wire grooves 14. The upper end of the hot metal heat exchange sheet 8 is fixedly connected to a heat sink 16. The hot metal heat exchange sheet 8 quickly conducts heat to the heat sink 16, increases the surface area of ​​the heat sink 16 and accelerates heat dissipation. A micro fan can be installed on the outside of the hot metal heat exchange sheet 8 for forced air cooling and starts and stops synchronously with the thermoelectric cooling chip 6.

[0026] During operation, the outer sheet 1 of the encapsulation bag comes into contact with the body, and the thermoelectric cooling element 6 is electrically connected to the positive and negative terminals of the power supply to form a circuit. The current passing through the thermoelectric cooling element 6 induces the Peltier effect, generating a hot end and a cold end at the two ends of the thermoelectric cooling element 6, respectively. The heat from the hot end is quickly conducted to the hot electrode metal heat exchange plate 8 and dissipated into the surrounding environment in a timely manner. The low temperature generated at the cold end is quickly transferred to the cold electrode metal heat exchange plate 2. At the same time, the encapsulation bag is filled with phase change material, which absorbs and conducts heat from the body during the phase change process. Cold energy storage is achieved when the thermoelectric cooling element 6 is not continuously powered on, thus assisting in cold storage. The module has a high degree of integration, low power consumption, high cooling efficiency with low loss, strong comfort, reasonable overall weight and volume, and controllable cost.

[0027] Through the above steps, the use of the cold electrode metal heat exchange plate 2 and the thermoelectric cooling plate 6 allows the low temperature generated at the cold end of the thermoelectric cooling plate 6 to be quickly transferred to the cold electrode metal heat exchange plate 2, resulting in a rapid and controllable cooling effect. The phase change material filled in the packaging bag absorbs and conducts body heat during the phase change process, assisting in cold storage. The module has a high degree of integration, low power consumption, high cooling efficiency and low loss, and a reasonable overall weight and volume. This solves the problems of existing thermoelectric cooling devices having a relatively simple structure, high energy consumption due to high cooling module efficiency, poor portability, and low cooling efficiency if the overall device is lightweight and compact.

Claims

1. A thermoelectric cooling device with high heat exchange efficiency, comprising an outer packaging bag (1); characterized in that: It also includes a cold electrode metal heat exchange plate (2) and a thermoelectric cooling plate (6). The cold electrode metal heat exchange plate (2) is provided at the upper end of the outer sheet (1) of the packaging bag. A heat exchange extension plate (3) is fixedly connected to the upper end of the cold electrode metal heat exchange plate (2). An inner sheet (4) of the packaging bag is fixedly connected to the upper end of the heat exchange extension plate (3). A packaging bag pressure ring (5) is fixedly connected to the upper end of the inner sheet (4). A thermoelectric cooling plate (6) is fixedly connected to the upper end of the cold electrode metal heat exchange plate (2) and inside the packaging bag pressure ring (5). An insulation plate (7) is fixedly connected to the upper end of the packaging bag pressure ring (5) and outside the thermoelectric cooling plate (6). A hot electrode metal heat exchange plate (8) is fixedly connected to the upper end of the insulation plate (7).

2. The thermoelectric cooling device with high heat exchange efficiency according to claim 1, characterized in that: The outer sheet (1) of the packaging bag is made of moisture-wicking and quick-drying fabric, and the outer side of the inner sheet (4) of the packaging bag is provided with heat-insulating material. The outer sheet (1) and the inner sheet (4) of the packaging bag are sealed together by ultrasonic pressing to form a bag.

3. The thermoelectric cooling device with high heat exchange efficiency according to claim 1, characterized in that: An installation groove (9) is fixedly connected inside the upper end of the cold electrode metal heat exchange plate (2). The installation groove (9) is compatible with the thermoelectric cooling plate (6). A fixing hole (10) is opened at the upper end of the cold electrode metal heat exchange plate (2) and on the side of the installation groove (9). There are four fixing holes (10). A positioning hole (11) is opened on the outer side of the upper end of the cold electrode metal heat exchange plate (2). There are eight positioning holes (11) arranged in a ring array.

4. The thermoelectric cooling device with high heat exchange efficiency according to claim 1, characterized in that: A groove (12) is provided on the outer side of the lower end of the cold electrode metal heat exchange plate (2), and an annular heat-conducting plate (13) is fixedly connected to the lower end of the cold electrode metal heat exchange plate (2). The cold electrode metal heat exchange plate (2) is immersed in a phase change material with high thermal conductivity.

5. The thermoelectric cooling device with high heat exchange efficiency according to claim 3, characterized in that: The heat exchange extension sheet (3), the inner sheet of the packaging bag (4), and the packaging bag pressure ring (5) are all provided with the same positioning hole (11), and the front side of the upper end of the packaging bag pressure ring (5) is symmetrically provided with a groove (14).

6. The thermoelectric cooling device with high heat exchange efficiency according to claim 5, characterized in that: The front end of the thermoelectric cooling chip (6) is electrically connected to the positive and negative poles of the power supply via wires (15), and the wires (15) and the wire groove (14) are compatible.

7. The thermoelectric cooling device with high heat exchange efficiency according to claim 6, characterized in that: The upper end of the heat insulation plate (7) and the lower end of the heat exchange plate (8) are provided with the same fixing hole (10). The front side of the lower end of the heat exchange plate (8) is provided with the same wire groove (14). The upper end of the heat exchange plate (8) is fixedly connected with a heat sink (16).

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