A thermoelectric refrigeration refrigerator

Abstract

This utility model relates to the field of vaccine storage technology, specifically disclosing a thermoelectric refrigeration refrigerator, which includes: a box body with a storage cavity inside; a door hinged to the box body for sealing the storage cavity; a partition installed inside the storage cavity to divide the storage cavity into a refrigeration area and a storage area; a support bracket detachably installed in the storage area for storing vaccines; a thermoelectric refrigeration component installed inside the box body with its cold end close to the refrigeration area of ​​the storage cavity; and a cold storage block fixed to the partition and located in the refrigeration area. The thermoelectric refrigeration refrigerator provided by this application separates the refrigeration area and the storage area by setting a partition inside the storage cavity, and setting a cold storage block on the partition of the refrigeration area, so that the cold storage block stores cold energy during normal operation and releases cold energy during abnormal operation such as power failure or door opening, providing continuous heat preservation for the storage area and effectively slowing down the temperature rise rate of the storage area.

Description

Technical Field

[0001] This application relates to the field of vaccine storage technology, and more specifically, to a thermoelectric refrigeration refrigerator. Background Technology

[0002] With the continuous development of medical and preventive healthcare, vaccine refrigeration technology is constantly advancing, and equipment is trending towards miniaturization and portability to meet the needs of home and mobile settings, improving the convenience and safety of vaccine storage. Technological innovation in this field has driven the optimization of refrigeration equipment, making it more adaptable to diverse usage environments and providing reliable support for vaccine cold chain management.

[0003] However, existing vaccine refrigerators lose cold air too quickly when the door is opened or the power is off, and lack an effective insulation mechanism, resulting in large temperature fluctuations inside the refrigerator and making the vaccine prone to failure.

[0004] There is currently no effective technical solution to the above problems. Utility Model Content

[0005] The purpose of this application is to provide a thermoelectric refrigeration refrigerator to solve the problems of excessive cold loss and large temperature fluctuations when the refrigerator is opened or the power is off.

[0006] This application provides a thermoelectric refrigeration refrigerator for storing vaccines, comprising:

[0007] The box contains a storage cavity;

[0008] The door is hinged to the box body and is used to seal the storage cavity;

[0009] A partition is installed inside the storage cavity to divide the storage cavity into a cooling area and a storage area;

[0010] A support bracket, detachably mounted in the storage area, is used to store vaccines;

[0011] A thermoelectric cooling assembly is installed inside the housing, with its cold end close to the cooling area of ​​the storage cavity;

[0012] The cold storage block is fixed on the partition and located in the refrigeration area.

[0013] The thermoelectric refrigeration refrigerator provided in this application separates the refrigeration area and the storage area by setting a partition in the storage cavity, and setting a cold storage block on the partition of the refrigeration area. The cold storage block stores cold energy during normal operation and releases cold energy during abnormal operation such as power failure or door opening, so as to provide continuous heat preservation for the storage area and effectively slow down the temperature rise rate of the storage area.

[0014] The thermoelectric refrigeration refrigerator further includes an internal circulation fan, which is fixed to the partition and located in the refrigeration area.

[0015] This application improves the efficiency of cold air transfer from the cooling zone to the storage zone by incorporating an internal circulation fan in the cooling zone, thereby accelerating the cooling rate of the storage zone. Simultaneously, the forced air circulation promotes air mixing within the storage zone, improves the uniformity of temperature distribution, reduces temperature gradients, and provides a more stable low-temperature storage environment for vaccines.

[0016] The thermoelectric refrigeration refrigerator includes multiple cold storage blocks, which are horizontally arrayed and fixed to the partition plate and located below the internal circulation fan, with the air outlet of the internal circulation fan facing downwards.

[0017] The thermoelectric refrigeration refrigerator is provided with multiple slots on both sides of the storage cavity, the slots extend horizontally, and the support frame is inserted and installed on the slots.

[0018] The thermoelectric refrigeration refrigerator further includes a cooling plate, which is fixed on the cavity wall of the refrigeration area inside the box near the cold end of the thermoelectric refrigeration component.

[0019] The thermoelectric refrigeration refrigerator includes a thermoelectric refrigeration component comprising a cooling plate, a radiator, and a cooling fan. The refrigerator body has a component mounting cavity located on the side of the storage cavity away from the door. The cooling plate is fixed to the cavity wall of the component mounting cavity near the storage cavity, with its cold end facing the storage cavity. The radiator is installed in the component mounting cavity and connected to the hot end of the cooling plate. The cooling fan is located below the radiator.

[0020] In the aforementioned thermoelectric refrigeration refrigerator, the radiator is a heat network radiator or an aluminum radiator.

[0021] The thermoelectric refrigeration refrigerator mentioned above has multiple refrigeration elements.

[0022] The thermoelectric refrigeration refrigerator is provided with a vacuum plate heat insulation plate surrounding the storage cavity inside the refrigerator.

[0023] The thermoelectric refrigeration refrigerator has a support plate at the bottom of the box body for supporting the closed box door.

[0024] As can be seen from the above, the thermoelectric refrigeration refrigerator provided in this application separates the refrigeration area and the storage area by setting a partition in the storage cavity, and setting a cold storage block on the partition of the refrigeration area. The cold storage block stores cold energy during normal operation and releases cold energy during abnormal operation such as power failure or door opening, providing continuous heat preservation for the storage area. This effectively slows down the temperature rise rate of the storage area, solves the problem of excessive cold loss and large temperature fluctuation when the refrigerator is opened or the power is off, improves the temperature stability and safety of vaccine storage, and reduces the risk of vaccine failure. Attached Figure Description

[0025] Figure 1 This is a three-dimensional structural diagram of a thermoelectric refrigeration refrigerator provided in an embodiment of this application.

[0026] Figure 2 This is a side cross-sectional view of the thermoelectric refrigeration refrigerator provided in an embodiment of this application.

[0027] Figure 3 An exploded view of a thermoelectric refrigeration refrigerator provided in an embodiment of this application.

[0028] Reference numerals: 1. Cabinet; 2. Cabinet door; 3. Partition; 4. Support frame; 5. Thermoelectric refrigeration assembly; 6. Cold storage block; 7. Internal circulation fan; 8. Cooling plate; 9. Tray; 10. Vacuum plate insulation plate; 11. Storage cavity; 12. Assembly cavity; 51. Cooling element; 52. Radiator; 53. Cooling fan; 111. Cooling area; 112. Storage area; 113. Slot. Detailed Implementation

[0029] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0030] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows for communication; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0033] The following disclosure provides many different embodiments or examples for implementing various structures of this invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0034] Please refer to Figures 1-3 Some embodiments of this application provide a thermoelectric refrigeration refrigerator for storing vaccines, including:

[0035] Box 1, with a storage cavity 11 inside;

[0036] Box door 2 is hinged to box body 1 and is used to seal storage cavity 11;

[0037] The partition 3 is installed inside the storage cavity 11, dividing the storage cavity 11 into a cooling area 111 and a storage area 112;

[0038] The support frame 4 is detachably installed in the storage area 112 for storing vaccines;

[0039] Thermoelectric cooling component 5 is installed inside the housing 1, with its cold end close to the cooling area 111 of the storage cavity 11;

[0040] The cold storage block 6 is fixed on the partition 3 and located in the cooling zone 111.

[0041] Specifically, partition 3 refers to a structure installed inside storage cavity 11, spatially dividing storage cavity 11 into two or more regions. It can be made of a material with thermal insulation properties, forming different functional areas within storage cavity 11 and providing installation positions for other components. Thermoelectric refrigeration component 5 refers to a device that uses the thermoelectric effect to generate a temperature difference to achieve a cooling function. It can be composed of one or more thermoelectric cooling elements, such as a semiconductor cooler based on the Peltier effect, and is mainly used to reduce the temperature of a specific area within storage cavity 11. Cold storage block 6 refers to a substance or device capable of storing cold energy and releasing it when needed. It can use phase change materials, ice, or cold storage gels as a medium, such as a sealed container containing a specific phase change material. It is mainly used to provide continuous cold energy output after refrigeration stops, maintaining the temperature inside the chamber.

[0042] More specifically, a storage cavity 11 is formed inside the housing 1, and a door 2 is used to seal the storage cavity 11. A partition 3 divides the storage cavity 11 into a rear cooling zone 111 and a front storage zone 112. A thermoelectric cooling assembly 5 is installed inside the housing 1, with its cold end close to the back wall of the cooling zone 111, and cools the cooling zone 111 during operation. A cold storage block 6 is fixed to the partition 3 and located inside the cooling zone 111. Under normal operating conditions, the cooling energy generated by the thermoelectric cooling assembly 5 first cools the cooling zone 111, and then transfers the cooling energy to the storage zone 112 through the partition 3 or air convection. At the same time, the cold storage block 6 is also cooled and stores the cooling energy. A support bracket 4 is installed in the storage zone 112 for placing vaccines. When the thermoelectric cooling assembly 5 stops working, for example, when the power is cut off or the door 2 is opened, the cold storage block 6 begins to release the stored cooling energy. Since the cold storage block 6 is located in the cooling zone 111 and fixed on the partition 3, the cold energy it releases can be transferred to the adjacent storage zone 112 through the partition 3 or the air in the cooling zone 111, thereby slowing down the rate of temperature rise in the storage zone 112, maintaining the temperature stability of the storage zone 112 for a certain period of time, and protecting the vaccines stored therein.

[0043] The thermoelectric refrigeration refrigerator provided in this application separates the refrigeration area 111 and the storage area 112 by setting a partition 3 in the storage cavity 11, and setting a cold storage block 6 on the partition 3 of the refrigeration area 111. The cold storage block 6 stores cold energy during normal operation and releases cold energy during abnormal operation such as power failure or door opening, providing continuous heat preservation for the storage area 112, effectively slowing down the temperature rise of the storage area 112, solving the problem of excessive cold energy loss and large temperature fluctuation when the refrigerator is opened or the power is off, improving the temperature stability and safety of vaccine storage, and reducing the risk of vaccine failure.

[0044] In some preferred embodiments, it also includes an internal circulation fan 7, which is fixed to the partition 3 and located in the cooling zone 111.

[0045] Specifically, the solution in this application adds an internal circulation fan 7 to the existing technical solution. This internal circulation fan 7 is fixed to the partition 3 and located in the cooling zone 111. When the thermoelectric cooling component 5 operates, the cold energy generated at its cold end is transferred to the cooling zone 111. After the internal circulation fan 7 starts, a forced air circulation is formed within the cooling zone 111, carrying away the cold energy generated by the thermoelectric cooling component 5 and the cold energy stored in the cold storage block 6 through forced convection. This driven cold air flows through the openings on the partition 3 or through the gap between the partition 3 and the housing 1 into the storage zone 112. Within the storage zone 112, the forced airflow helps mix air of different temperatures, reducing temperature stratification. Subsequently, the air flows back to the cooling zone 111 and is cooled again, forming a cycle. This forced circulation significantly improves the efficiency of cold energy transfer from the cooling zone 111 to the storage zone 112, accelerating the cooling process of the storage zone 112. Meanwhile, the continuous flow and mixing of air within the storage area 112 ensures a more uniform temperature distribution, preventing areas from becoming too cold or too hot. The internal circulation fan 7, along with the thermoelectric cooling component 5, the cold storage block 6, and the partition 3, work together to create an efficient and temperature-uniform refrigeration environment.

[0046] Through the above-described scheme, this application improves the efficiency of cold energy transfer from the cooling zone 111 to the storage zone 112 by setting an internal circulation fan 7 in the cooling zone 111 to form forced air circulation, thereby accelerating the cooling rate of the storage zone 112. Simultaneously, the forced air circulation promotes air mixing within the storage zone 112, improves the uniformity of temperature distribution, reduces temperature gradients, and provides a more stable low-temperature storage environment for the vaccine.

[0047] In some preferred embodiments, there are multiple cold storage blocks 6, which are horizontally arrayed and attached to the partition 3 and located below the internal circulation fan 7, with the air outlet of the internal circulation fan 7 facing downwards.

[0048] Specifically, the cold storage block 6 can be attached and fixed by means of adhesive, clips, frames or trays to ensure that the cold storage block 6 and the partition 3 are in close contact and that the cold storage blocks 6 are in close contact with each other, so as to facilitate heat transfer.

[0049] More specifically, this solution increases the total amount of cold storage and provides a larger heat exchange surface area by fixing multiple cold storage blocks 6 in a horizontal array on the partition 3. This horizontal array arrangement allows the cooling capacity to be evenly distributed on a single surface below the partition 3. Positioning these cold storage blocks 6 below the internal circulation fan 7 with the fan's outlet facing downwards ensures that the airflow generated by the fan can directly blow onto or flow over the surface of the cold storage blocks 6. This forced convection significantly enhances the heat exchange efficiency between the air and the cold storage blocks 6.

[0050] Through the above solution, this application enhances the heat exchange efficiency between air and cold storage block 6, enabling the cold energy stored in cold storage block 6 to be quickly transferred to the air, improving the uniformity of temperature distribution inside the box, and more effectively utilizing cold storage block 6 for heat preservation during power outages or non-cooling periods, thus extending the effective heat preservation time.

[0051] In some preferred embodiments, the storage cavity 11 has a plurality of slots 113 on both sides, the slots 113 extend horizontally, and the support bracket 4 is inserted and installed on the slots 113.

[0052] Specifically, multiple horizontally extending slots 113 are pre-set on the inner walls of both sides of the storage cavity 11. The support bracket 4 is designed with structures that mate with these slots 113, such as side protrusions or guide rails. By aligning the mating structure on the side of the support bracket 4 with the slots 113 at the same height on both sides of the storage cavity 11 and pushing it in, the support bracket 4 is supported and fixed inside the storage cavity 11 by the slots 113. The horizontal extension of the slots 113 ensures that the support bracket 4 can be installed horizontally and stably. The arrangement of multiple slots 113 provides multiple preset installation heights, allowing the support bracket 4 to adjust its vertical position according to storage needs, thereby dividing the storage cavity 11 into spaces of different sizes. This plug-in method enables the detachable installation of the support bracket 4. Combined with the overall structure of the refrigerator, it provides a means to easily adjust or remove the support bracket 4 without tools, while ensuring the stability of the support bracket 4 inside the cabinet 1, preventing shaking or displacement during use, thereby ensuring the stability of vaccine storage.

[0053] The above design allows for easy adjustment of the height of the support frame 4, enabling flexible partitioning of the storage space to adapt to different storage needs. It ensures that the support frame 4 is firmly fixed in the storage cavity 11, preventing shaking or displacement, thus enhancing the stability of vaccine storage. The installation and disassembly process is convenient and quick, requiring no tools.

[0054] In some preferred embodiments, it further includes: a cooling plate 8, which is fixed to the cavity wall of the cooling area 111 inside the housing 1 near the cold end of the thermoelectric cooling assembly 5.

[0055] Specifically, the cooling plate 8 refers to a plate-shaped structure or a structure with an extended surface that has good thermal conductivity, and can be made of metal materials such as aluminum, copper, or their alloys. The cooling plate 8 is fixed to the cavity wall of the cooling zone 111 within the housing 1, near the cold end of the thermoelectric refrigeration component 5, and its function is to act as an intermediate medium for cold energy transfer. The cold energy generated by the cold end of the thermoelectric refrigeration component 5 is first transferred to the tightly fitted cooling plate 8. The cooling plate 8 has good thermal conductivity, enabling it to quickly absorb the cold energy and diffuse it on its surface, thereby distributing the cold energy originally concentrated in the cold end region of the thermoelectric refrigeration component 5 more evenly to the cavity wall and air within the cooling zone 111. This method of cold energy transfer and diffusion via the cooling plate 8 improves the efficiency of cold energy transfer from the thermoelectric refrigeration component 5 to the cooling zone 111 and helps to form a more uniform temperature field within the cooling zone 111, thus more effectively cooling the cooling zone 111 and indirectly improving the cooling effect and temperature stability of the storage zone 112. The cooling plate 8, together with the thermoelectric refrigeration component 5 and the cavity wall of the housing 1, forms an optimized cold energy transfer path, overcoming the problem of local cold energy concentration.

[0056] In some preferred embodiments, the thermoelectric cooling assembly 5 includes a cooling chip 51, a radiator 52, and a cooling fan 53. The housing 1 has an assembly mounting cavity 12 located on the side of the storage cavity 11 away from the door 2. The cooling chip 51 is fixed on the cavity wall of the assembly mounting cavity 12 near the storage cavity 11, with its cold end facing the storage cavity 11. The radiator 52 is installed in the assembly mounting cavity 12 and connected to the hot end of the cooling chip 51. The cooling fan 53 is located below the radiator 52.

[0057] Specifically, the component mounting cavity 12 refers to an independent space reserved inside the housing 1 for installing specific devices. The exhaust end of the cooling fan 53 is preferably oriented towards the heat sink 52, and the component mounting cavity 12 has a heat dissipation vent on its cavity wall away from the storage cavity 11.

[0058] More specifically, the cold end of the cooling chip 51 faces directly into the storage cavity 11, ensuring effective transfer of the cooling energy. The heat generated by the hot end of the cooling chip 51 is transferred to the heat sink 52 installed in the component mounting cavity 12. The cooling fan 53 is cleverly positioned below the heat sink 52, with its airflow direction upwards, directly facing the heat sink 52, thereby creating forced convection and accelerating the airflow over the fins of the heat sink 52, significantly improving the efficiency of the heat sink 52 in dissipating heat to the air. The heated air is then exhausted to the outside of the housing 1 through a heat dissipation vent located on the side wall of the component mounting cavity 12 opposite to the storage cavity 11.

[0059] Through the above-described solution, this application significantly improves the heat dissipation efficiency of the thermoelectric refrigeration component 5 by optimizing its heat dissipation structure and layout, particularly by introducing the component mounting cavity 12, forced convection heat dissipation, and directional heat dissipation. This reduces the hot-end temperature of the cooling element 51, thereby enhancing its cooling capacity and efficiency. Consequently, the refrigerator can cool down more quickly, better maintain temperature stability within the storage cavity 11, effectively cope with changes in the external environment and heat loads during use, and overcome the problem of insufficient thermoelectric refrigeration heat dissipation in existing technologies that limits cooling performance.

[0060] In some preferred embodiments, the radiator 52 is a heat exchange radiator or an aluminum radiator.

[0061] In some preferred embodiments, there are multiple cooling elements 51, and preferably two.

[0062] This application increases the total cooling power by increasing the number of cooling elements 51 in the thermoelectric cooling assembly 5, which enables the temperature of the storage cavity 11 to drop rapidly to the target range, effectively offsetting the entry of external heat, maintaining the temperature stability of the storage cavity 11, controlling the temperature fluctuation range, and ensuring the safety of vaccine storage.

[0063] In some preferred embodiments, the partition 3 is made of metal, which can effectively improve the heat conduction capacity of the cold storage block 6.

[0064] In some preferred embodiments, the partition 3 is provided with a plurality of ventilation holes (not shown in the figure) to work with the internal circulation fan 7 to guide the cold energy in the cooling zone 111 to the storage zone 112, thereby optimizing the cooling effect.

[0065] In some preferred embodiments, the housing 1 is provided with a vacuum plate heat insulation plate 10 surrounding the storage cavity 11.

[0066] Specifically, the vacuum insulation panel 10 refers to a plate-shaped material that uses the principle of vacuum to achieve heat insulation. It includes a core material and a sealing membrane. By drawing a vacuum, a near-vacuum state is formed inside the core material, thereby reducing heat conduction and heat convection. The vacuum insulation panel 10 can use various core materials, such as glass fiber, aerogel, polyurethane foam, etc., and is sealed with a high-barrier composite membrane.

[0067] like Figure 2 As shown, the vacuum insulation plate 10 is fixed to the outer wall of the housing 1, which is located in the wall that makes up the storage cavity 11, to enhance the heat insulation performance of the storage cavity 11.

[0068] It should be noted that the vacuum insulation panel 10 is actually integrated into the foam layer inside the housing 1.

[0069] In some preferred embodiments, the bottom of the box body 1 has a support plate 9 for supporting the closed box door 2.

[0070] Specifically, the support plate 9 is installed at the bottom of the box body 1 to provide support for the bottom of the box door 2 when it is closed. The method of this application solves the problem of insufficient bottom support after the box door 2 is closed by using the support plate 9, thereby enhancing the stability and airtightness of the box door 2.

[0071] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0072] The above descriptions are merely some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and all such modifications and improvements fall within the protection scope of this utility model.

Claims

1. A thermoelectrically refrigerated cold box for storing vaccines, characterized in that include: The box contains a storage cavity; The door is hinged to the box body and is used to seal the storage cavity; A partition, installed inside the storage cavity, divides the storage cavity into a cooling area and a storage area; a support bracket, detachably installed in the storage area, is used to store vaccines; A thermoelectric refrigeration assembly is installed inside the housing, with its cold end close to the refrigeration area of ​​the storage cavity; a cold storage block is fixed on the partition and located in the refrigeration area.

2. The thermoelectric refrigeration chiller of claim 1, wherein Also includes: An internal circulation fan is fixed to the partition and located in the cooling area.

3. The thermoelectric refrigeration chiller of claim 2 wherein, There are multiple cold storage blocks, which are horizontally arranged and attached to the partition plate and located below the internal circulation fan, with the air outlet of the internal circulation fan facing downwards.

4. The thermoelectric refrigeration chiller of claim 1 wherein, The storage cavity has multiple slots on both sides, the slots extend horizontally, and the support bracket is inserted and installed in the slots.

5. The thermoelectric refrigeration chiller of claim 1 wherein, Also includes: A cooling plate is fixed to the cavity wall of the refrigeration area inside the housing, near the cold end of the thermoelectric refrigeration component.

6. The thermoelectric refrigeration chiller of claim 1 wherein, The thermoelectric cooling assembly includes a cooling chip, a radiator, and a cooling fan. The housing has an assembly mounting cavity located on the side of the storage cavity away from the housing door. The cooling chip is fixed to the cavity wall of the assembly mounting cavity near the storage cavity, with its cold end facing the storage cavity. The radiator is installed in the assembly mounting cavity and connected to the hot end of the cooling chip. The cooling fan is located below the radiator.

7. The thermoelectric refrigeration chiller of claim 6 wherein, The radiator is a heat exchange radiator or an aluminum radiator.

8. The thermoelectric refrigeration chiller of claim 6 wherein, There are multiple cooling elements.

9. The thermoelectric refrigeration chiller of claim 1 wherein, The box is equipped with a vacuum plate heat insulation plate surrounding the storage cavity.

10. The thermoelectric refrigeration chiller of claim 1 wherein, The bottom of the box has a support plate for supporting the closed box door.

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