Special area drawer and refrigerator

Abstract

The invention provides a special-area drawer and a refrigerator, the special-area drawer comprises a sealing cavity, a drawer, air duct foam and a semiconductor refrigeration module, the top of the air duct foam sinks downwards to form a hot-end air duct, and the bottom of the air duct foam sinks inwards to form a cold-end air duct; the semiconductor refrigeration module comprises a semiconductor refrigeration sheet, a cold end aluminum block and a hot end aluminum block; the cold-end aluminum block is fixed in the cold-end air duct, the hot-end aluminum block is fixed in the hot-end air duct, and the semiconductor chilling plate is arranged between the cold-end aluminum block and the hot-end aluminum block. The interior of the drawer is refrigerated through the semiconductor refrigeration module, a true sealing state without cold exchange with a refrigerator chamber is achieved, and the problems that an existing drawer in a special area is complex in temperature and humidity control structure, temperature fluctuation is prone to being influenced by factors such as defrosting of a refrigerator refrigeration system, constant temperature and humidity are not easy to achieve, and odor tainting is caused between the drawer and the refrigerator chamber are solved. And by utilizing the characteristic that the cold end and the hot end of the semiconductor module can be switched along with the current input direction, the drawer can be switched from refrigeration to warm storage and can be used for storing tropical fruits or unfreezing meat and the like.

Description

Technical Field

[0001] The present application relates to the technical field of household appliances, and more specifically to a dedicated area drawer and a refrigerator. Background Art

[0002] As people's requirements for dietary health and quality increase, the types of food and storage requirements are becoming more diverse. This refined demand for storage environment requires refrigerator design to provide an optimal storage environment for various ingredients through scientific and reasonable partition storage and professional preservation technology. Existing high-end refrigerators not only have larger storage space, but also cleverly set up special drawers with independent temperature and humidity control functions inside to meet the personalized storage needs of different ingredients.

[0003] High-end refrigerators generally use advanced temperature control and humidity regulation technology when designing special zone drawers. These drawers are usually equipped with sensors that can monitor and adjust the temperature and humidity levels in the drawers in real time to ensure that the ingredients are kept in the best possible state. However, in terms of refrigeration, most special zone drawers do not have the ability to refrigerate independently, but rely on the cold air circulation with the main compartment of the refrigerator. This means that although the drawer is equipped with a temperature and humidity control system, its refrigeration effect is still affected and restricted by the overall refrigeration system of the refrigerator.

[0004] Since most existing special zone drawers cannot achieve independent circulation refrigeration and need to rely on the cold air in the refrigerator compartment for circulation, in order to achieve temperature and humidity control inside the drawer, it is necessary to design a relatively complex structure to cope with the unevenness of the cold air circulation, which increases manufacturing costs and maintenance difficulties. Secondly, the periodic defrosting operation of the refrigerator refrigeration system will cause large fluctuations in the temperature and humidity environment in the drawer, making it particularly difficult to achieve constant temperature and humidity. In addition, due to the non-independence of the cold air circulation, the special zone drawer and the refrigerator compartment are prone to odor contamination, affecting the pure flavor and storage quality of the food. Summary of the invention

[0005] In order to solve the above-mentioned existing related technologies, since most of the existing special area drawers cannot achieve independent circulation refrigeration and need to rely on the cold air in the refrigerator compartment for circulation, which leads to increased manufacturing costs and difficulty in maintenance, difficulty in achieving constant temperature and humidity, and easy odor transfer between the special area drawers and the refrigerator compartment.

[0006] On one hand, the present application provides a special zone drawer, comprising: a sealed cavity and a drawer slidably disposed in the sealed cavity, wherein the front of the sealed cavity forms an open special zone drawer storage space, and when the drawer is closed, the special zone drawer storage space is completely sealed;

[0007] It also includes air duct foam and a semiconductor refrigeration module, wherein the air duct foam covers the top of the sealed cavity, and the semiconductor refrigeration module is embedded in the air duct foam;

[0008] The top of the air duct foam is concave to form a hot end air duct, and the bottom is concave to form a cold end air duct;

[0009] The semiconductor refrigeration module comprises: a semiconductor refrigeration sheet, a cold end aluminum block and a hot end aluminum block;

[0010] The cold end aluminum block is fixed in the cold end air duct, the hot end aluminum block is fixed in the hot end air duct, and the semiconductor refrigeration plate is arranged between the cold end aluminum block and the hot end aluminum block.

[0011] In a feasible implementation, the semiconductor refrigeration module further comprises: connecting the aluminum block and the thermal insulation foam;

[0012] The cold-end aluminum block and the hot-end aluminum block are fixedly connected via the connecting aluminum block, the connecting aluminum block is embedded in the thermal insulation foam, and the cold-end aluminum block and the hot-end aluminum block are respectively arranged on both sides of the thermal insulation foam.

[0013] In a feasible implementation, the semiconductor cooling plate is connected to an external power source, and the current input direction of the external power source is reversible.

[0014] In a feasible implementation, a through hole is provided in the middle of the hot end air duct;

[0015] The step surface of the thermal insulation foam is in contact with the step surface of the through hole, and the thickness of the thermal insulation foam is consistent with the depth of the through hole, so that the cold end air duct and the hot end air duct are sealed.

[0016] In a feasible implementation, a fixing screw column is provided at the top of the sealing cavity below the through hole;

[0017] The fixing screw column is inserted into the semiconductor refrigeration module, and the semiconductor refrigeration module is fixed to the top of the sealing cavity through the fixing screw column.

[0018] In a feasible implementation, the dedicated area drawer further includes a dedicated area cover plate buckled on the top of the sealed cavity;

[0019] The dedicated zone cover plate squeezes the air duct foam, so that the cold end air duct and the sealing cavity and the hot end air duct and the dedicated zone cover plate are sealed.

[0020] In a feasible implementation, a cold end return air port is provided at the rear of the top surface of the sealed cavity, and a cold end supply air port is provided in the middle;

[0021] The dedicated zone drawer also includes a cold end fan, which is located in the front section of the cold end air duct close to the cold end return air outlet, the cold end aluminum block is located in the middle section of the cold end air duct, and the cold end air supply outlet is located in the rear section of the cold end air duct.

[0022] In a feasible implementation, a boss protruding upward is provided on the top of the special zone cover plate;

[0023] The front part of the boss is provided with a hot end air inlet, and the rear part is provided with a hot end air outlet. The hot end air inlet extends to the top of the hot end aluminum block, and the hot end air outlet is located at the rear side of the hot end aluminum block.

[0024] In a feasible implementation, a first limiting rib is provided at the joint between the top surface of the sealing cavity and the air duct foam, and a second limiting rib is provided at the bottom of the special area cover plate;

[0025] The first limiting rib is embedded with the second limiting rib, and the air duct foam is fixed between the sealing cavity and the special area cover plate through the first limiting rib and the second limiting rib.

[0026] Another aspect of the present application provides a refrigerator, comprising: a box body and any one of the above-described dedicated drawers arranged in the box body.

[0027] From the above content, it can be seen that the present application provides a special area drawer and a refrigerator, the interior of the drawer is cooled by a semiconductor refrigeration module, achieving a truly sealed state without the need to exchange cold with the refrigerator compartment, thereby solving the problems of complex structure of existing special area drawer temperature and humidity control, temperature fluctuations easily affected by factors such as defrosting of the refrigerator refrigeration system, difficulty in achieving constant temperature and humidity, and odor contamination between the food in the drawer and the refrigerator compartment; a further purpose is to utilize the characteristic that the cold end and the hot end of the semiconductor module can be converted according to the direction of current input, so that the function of the drawer can be switched from refrigeration to warm storage, which can be used for storing tropical fruits or thawing meat, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings herein are incorporated into and constitute a part of the specification, illustrate embodiments consistent with the implementation of the present invention, and together with the specification are used to explain the principles of the embodiments of the present invention. Obviously, the accompanying drawings described below are only some embodiments of the implementation of the present invention, and for ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without creative work.

[0029] Figure 1 is a schematic structural diagram of a dedicated zone cover of a dedicated zone drawer shown in an embodiment of the present application being opened;

[0030] Figure 2 It is a schematic diagram of the exploded structure of the dedicated area drawer shown in the embodiment of the present application;

[0031] Figure 3 is a schematic structural diagram of the top of the sealed cavity shown in an embodiment of the present application;

[0032] Figure 4It is a schematic diagram of the structure of the air duct foam top shown in the embodiment of the present application;

[0033] Figure 5 It is a schematic diagram of the structure of fixing the air duct foam and the semiconductor refrigeration module shown in the embodiment of the present application;

[0034] Figure 6 It is a schematic diagram of the structure of the air duct foam bottom shown in the embodiment of the present application;

[0035] Figure 7 It is a schematic diagram of the exploded structure of the semiconductor refrigeration module shown in the embodiment of the present application;

[0036] Figure 8 is a schematic diagram of the structure of a semiconductor refrigeration module shown in an embodiment of the present application;

[0037] Fig. 9 is a side cutaway schematic diagram of a dedicated zone drawer shown in an embodiment of the present application;

[0038] Fig.10 It is a structural schematic diagram of the top of the dedicated area drawer shown in the embodiment of the present application;

[0039] Fig.11 It is a schematic diagram of the structure of a refrigerator shown in an embodiment of the present application.

[0040] Description of Figure Numbers:

[0041] 100-refrigerator; 1-box; 2-special area drawer;

[0042] 21-sealed chamber; 22-drawer; 23-cold end fan; 24-air duct foam; 25-semiconductor refrigeration module; 26-special area cover;

[0043] 211-cold end return air outlet; 212-cold end supply air outlet; 213-fixing screw column; 214-first limiting rib; 241-hot end air duct; 242-cold end air duct; 243-through hole; 251-semiconductor refrigeration plate; 252-cold end aluminum block; 253-hot end aluminum block; 254-connecting aluminum block; 255-insulating foam; 261-boss; 262-hot end air inlet; 263-hot end air outlet; 264-second limiting rib. DETAILED DESCRIPTION

[0044] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that the embodiments of the present invention will be more comprehensive and complete and fully convey the concepts of the example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, many specific details are provided to provide a full understanding of the implementation of the embodiments of the present invention.

[0045] In modern life, with the diversification of food types and the refinement of storage needs, high-end refrigerators meet the preservation needs of different food ingredients by designing special zone drawers with independent temperature and humidity control functions. However, most of the special zone drawers on the market currently rely on the cold air circulation of the refrigerator compartment rather than independent refrigeration, which leads to the complexity of the internal control structure of the drawer, and the large fluctuations in temperature and humidity under the influence of factors such as defrosting of the refrigerator refrigeration system, making it difficult to achieve constant temperature and humidity. At the same time, there are also technical problems such as odor transfer between the special zone drawer and the refrigerator compartment. These problems not only increase the manufacturing cost and maintenance difficulty, but also affect the preservation effect of food ingredients and user experience.

[0046] In view of these problems, the present application embodiment proposes a special area drawer 2, referring to Figure 1-Figure 10 As shown, it includes: a sealed cavity 21 and a drawer 22 slidably arranged in the sealed cavity 21. The front of the sealed cavity 21 forms an open storage space for the dedicated area drawer 2. When the drawer 22 is closed, the storage space of the dedicated area drawer 2 is completely sealed. The sealed cavity 21 is in the form of an open front to facilitate the sliding installation of the drawer 22. When the drawer 22 is fully pushed in and closed, the sealed cavity 21 and the drawer 22 together form a completely sealed storage space, which effectively isolates external air and odor.

[0047] The dedicated zone drawer also includes air duct foam 24 and a semiconductor refrigeration module 25. The air duct foam 24 covers the top of the sealed cavity 21, and the semiconductor refrigeration module 25 is embedded in the air duct foam 24; the top of the air duct foam 24 is concave to form a hot end air duct 241, and the bottom is concave to form a cold end air duct 242.

[0048] The air duct foam 24 covers the top of the sealed cavity 21 to provide heat insulation. The top of the air duct foam 24 is concave to form a hot end air duct 241, and the bottom is concave to form a cold end air duct 242. These two air ducts help guide the flow of hot and cold air and improve refrigeration efficiency.

[0049] The semiconductor refrigeration module 25 includes: a semiconductor refrigeration plate 251, a cold end aluminum block 252 and a hot end aluminum block 253; the cold end aluminum block 252 is fixed in the cold end air duct 242, the hot end aluminum block 253 is fixed in the hot end air duct 241, and the semiconductor refrigeration plate 251 is arranged between the cold end aluminum block 252 and the hot end aluminum block 253.

[0050] The embodiment of the present application realizes the independent refrigeration function of the special zone drawer 2 by combining the semiconductor refrigeration module 25 with the air duct foam 24. After the semiconductor refrigeration sheet 251 is powered on, the cold end absorbs heat and the hot end releases heat, and the cold and heat are transferred to the air in the cold end air duct 242 and the hot end air duct 241 through the cold end aluminum block 252 and the hot end aluminum block 253 respectively. The cold air in the cold end air duct 242 enters the storage space of the special zone drawer 2 by natural convection or forced convection, providing a cooling effect for the food; while the hot air in the hot end air duct 241 is discharged from the outside of the special zone drawer 2 through the heat dissipation system, realizing the separation and circulation of cold and hot air. This design avoids the complexity of the cold air circulation in the traditional refrigerator compartment, reduces the temperature and humidity fluctuations, and achieves the effect of constant temperature and humidity.

[0051] The embodiment of the present application realizes the independent refrigeration function of the special zone drawer 2, avoids the complexity of the cold air circulation in the traditional refrigerator compartment, and improves the refrigeration efficiency and stability. By combining the semiconductor refrigeration module 25 with the air duct foam 24, the constant temperature and humidity effect in the special zone drawer 2 is achieved, extending the shelf life of the food. The completely sealed storage space formed by the sealed cavity 21 and the drawer 22 effectively isolates the external air and odor, ensuring the freshness and purity of the food. At the same time, the structure of the refrigeration system is simplified, reducing the manufacturing cost and maintenance difficulty.

[0052] In some embodiments of the present application, the semiconductor refrigeration module 25 also includes: a connecting aluminum block 254 and an insulating foam 255; the cold-end aluminum block 252 and the hot-end aluminum block 253 are fixedly connected via the connecting aluminum block 254, the connecting aluminum block 254 is embedded in the insulating foam 255, and the cold-end aluminum block 252 and the hot-end aluminum block 253 are respectively arranged on both sides of the insulating foam 255.

[0053] The connecting aluminum block 254 ensures a stable connection between the cold end aluminum block 252 and the hot end aluminum block 253, and also serves as a heat conduction path. The connecting aluminum block 254 is embedded in the heat insulating foam 255, effectively separating the cold end aluminum block 252 from the hot end aluminum block 253, preventing direct heat transfer, and optimizing the heat conduction path.

[0054] The function of the heat insulating foam 255 is to further isolate the heat transfer between the cold end aluminum block 252 and the hot end aluminum block 253, thereby improving the refrigeration efficiency, reducing energy loss, and ensuring the stability and efficiency of the refrigeration system. At the same time, it can also protect the semiconductor cooling sheet 251 from the influence of the external environment, thereby extending the service life of the cooling sheet 251.

[0055] Based on the original semiconductor refrigeration module 25, this embodiment further optimizes the structure of the refrigeration system by adding a connecting aluminum block 254 and a heat-insulating foam 255. The connecting aluminum block 254 ensures a stable connection between the cold-end aluminum block 252 and the hot-end aluminum block 253, and through the effective isolation of the heat-insulating foam 255, a complete separation of the cold and hot ends is achieved, which not only improves the refrigeration efficiency and reduces energy loss, but also ensures the stability and reliability of the refrigeration system.

[0056] During the cooling process, after the semiconductor cooling sheet 251 is powered on, the cold-end aluminum block 252 absorbs heat, and the hot-end aluminum block 253 releases heat. Through the heat conduction effect of the connecting aluminum block 254, the cold-end aluminum block 252 transfers the cold energy to the air in the storage space of the special zone drawer to achieve the cooling effect; while the hot-end aluminum block 253 transfers the heat to the air in the hot-end air duct 241 isolated by the insulation foam 255, and is discharged to the outside of the special zone drawer 2 through the heat dissipation system.

[0057] In some embodiments of the present application, the semiconductor cooling sheet 251 is connected to an external power source, and the current input direction of the external power source is reversible.

[0058] The power supply setting in this embodiment is based on the core principle of semiconductor refrigeration - Peltier effect, which is a unique thermoelectric effect.

[0059] The principle of the Peltier effect is that when a thermocouple composed of N-type (electron-rich) and P-type (electron-deficient) semiconductor materials is supplied with direct current, in addition to the inevitable Joule heat, heat absorption and heat release will occur at the junction of the thermocouple. The key to this phenomenon lies in the direction of the current: when the current is supplied from one direction, one junction will absorb heat (become the cold end) and the other junction will release heat (become the hot end); and when the current direction is reversed, the junctions that absorb and release heat will also be exchanged accordingly.

[0060] Based on this principle, this embodiment realizes flexible switching of the cooling or heating mode of the semiconductor refrigeration plate 251 by controlling the current input direction of the external power supply. In the application scenario of the dedicated drawer 2, this means that the temperature environment in the drawer can be dynamically adjusted according to the needs of the stored items, whether it is fresh food that needs to be refrigerated or specific medicines or reagents that need to be kept warm, they can all get just the right temperature control.

[0061] Traditional refrigerators or refrigeration equipment often use a fixed refrigeration system that cannot be flexibly adjusted according to the different needs of stored items. This not only leads to a waste of energy, but may also affect the quality and shelf life of stored items. This embodiment solves the problem that the refrigeration system cannot be flexibly adjusted by introducing an external power source of reversible current and combining it with the Peltier effect of the semiconductor refrigeration sheet. Specifically, this embodiment utilizes the characteristics that the cold end aluminum block 252 and the hot end aluminum block 253 of the semiconductor module 2 can be converted according to the direction of current input. The function of the drawer 22 can be switched from refrigeration to warm storage, which is used to store tropical fruits or thaw meat, etc.

[0062] In some embodiments of the present application, a through hole 243 is provided in the middle of the hot-end air duct 241; the step surface of the insulation foam 255 is fitted with the step surface of the through hole 243, and the thickness of the insulation foam 255 is consistent with the depth of the through hole 243, so as to seal the cold-end air duct 242 and the hot-end air duct 241.

[0063] The heat-insulating foam 255 effectively prevents the direct transfer of heat from the hot-end air duct 241 to the cold-end air duct 242. At the same time, by ensuring that the step surface of the heat-insulating foam 255 is closely fitted with the step surface of the through hole 243, and the thickness matches the depth of the through hole, a complete seal between the cold and hot air ducts is achieved, and heat transfer caused by air leakage is avoided. By ensuring that the thickness of the heat-insulating foam 255 is consistent with the depth of the through hole 243, not only a sealing effect is achieved, but also the compactness of the structure is maintained, which is conducive to saving space and improving the efficiency of the overall design.

[0064] In some embodiments of the present application, a fixing screw column 213 is provided at the top of the sealed cavity 21 below the through hole 243; the fixing screw column 213 is inserted into the semiconductor refrigeration module 25, and the semiconductor refrigeration module 25 is fixed to the top of the sealed cavity 21 by the fixing screw column 213.

[0065] The fastening force provided by the fixing screw column 213 prevents the semiconductor refrigeration module 25 from loosening or displacement during operation, thereby ensuring the long-term reliability and performance stability of the refrigeration system. Furthermore, the strong fastening force provided by the fixing screw column 213 ensures a close fit between the semiconductor refrigeration module 25 and the sealed cavity 21, thereby effectively preventing heat leakage and air flow, and improving the overall efficiency of the refrigeration system.

[0066] In some embodiments of the present application, the dedicated area drawer 2 also includes a dedicated area cover 26 that is snapped onto the top of the sealed cavity 21 ; the dedicated area cover 26 squeezes the air duct foam 24 to seal the cold end air duct 242 and the sealed cavity 21 and the hot end air duct 241 and the dedicated area cover 26 .

[0067] The air duct foam 24 is used to form the cold end air duct 242 and the hot end air duct 241. The internal structure of the air duct foam 24 can guide the air to flow efficiently between the cold end and the hot end. The cold end air duct 242 accommodates the cold end aluminum block 252 and absorbs heat through heat conduction; while the hot end air duct 241 accommodates the hot end aluminum block 253 and is responsible for discharging the absorbed heat outside the system through air convection. The use of the air duct foam 24 not only improves the heat dissipation efficiency, but also ensures the stability and durability of the air duct structure.

[0068] The dedicated zone cover 26 is buckled on the top of the sealed cavity 21, and by appropriately squeezing the air duct foam 24, a tight seal between the cold end air duct 242 and the sealed cavity 21, and between the hot end air duct 241 and the dedicated zone cover 26 is ensured, effectively preventing air leakage, improving the overall sealing of the heat dissipation system, and further improving the heat dissipation efficiency. In this embodiment, through the squeezing effect of the dedicated zone cover 26, a seamless connection between the cold end air duct 242 and the hot end air duct 241 and the sealed cavity 21 is achieved, reducing energy loss during heat transfer. At the same time, the structure of the air duct foam 24 optimizes the air flow path, making heat dissipation more efficient and uniform.

[0069] In some embodiments of the present application, a cold end return air outlet 211 is provided at the rear portion of the top surface of the sealed cavity 21, and a cold end supply air outlet 212 is provided in the middle portion; the special area drawer 2 also includes a cold end fan 23, the cold end fan 23 is located in the front section of the cold end air duct 242 close to the cold end return air outlet 211, the cold end aluminum block 252 is located in the middle section of the cold end air duct 242, and the cold end supply air outlet 212 is located in the rear section of the cold end air duct 242.

[0070] The cold end aluminum block 252 uses its high thermal conductivity to quickly cool and generate cold air. The cold end fan 23 is used to blow the air that has been initially cooled, and the wind force generated by its own rotation drives the air to flow in the cold end air duct 242. The cold end return air port 211 is used to inhale the cold air passing through the sealed cavity 21, and the cold end air supply port 212 is responsible for sending the cooled air into the sealed cavity 21.

[0071] When the semiconductor refrigeration module 25 is running, under the action of the cold end fan 23, the cold end circulating air first flows from the cold end air duct 242 through the cold end aluminum block 252, and continues to flow through the cold end air supply port 212 to supply air downward to the sealed chamber 21 to cool the food. The circulating air then re-enters the cold end air duct 242 through the cold end return air port 211 to complete the cold end air circulation.

[0072] This embodiment realizes efficient heat dissipation and cooling of the heat source through the cold end air duct 242, combined with the forced convection of the cold end fan 23 and the efficient heat conduction of the cold end aluminum block 252. The air is sucked back from the cold end return air port 211, accelerated by the cold end fan 23, cooled when flowing through the cold end aluminum block 252, and finally evenly fed into the sealed cavity 21 from the cold end air supply port 212, forming a complete refrigeration cycle. This process not only improves the refrigeration efficiency, but also ensures the uniformity of heat dissipation, effectively extending the service life of the refrigeration system.

[0073] In some embodiments of the present application, an upwardly protruding boss 261 is provided on the top of the special area cover 26; a hot end air inlet 262 is provided in the front of the boss 261, and a hot end air outlet 263 is provided in the rear. The hot end air inlet 262 extends to the top of the hot end aluminum block 253, and the hot end air outlet 263 is located on the rear side of the hot end aluminum block 253.

[0074] The boss 261 is used to adjust the layout so that the hot end air inlet 262 and the hot end air outlet 263 can work efficiently and increase the structural strength. The hot end air inlet 262 ensures that the hot air can smoothly enter the hot end air duct 241, providing the necessary conditions for the heat dissipation process. The hot end air outlet 263 discharges the hot air after heat dissipation out of the drawer 22. As a key component of heat conduction, the hot end aluminum block 253 can quickly and evenly absorb and disperse the heat in the special area drawer 2, providing stable heat dissipation performance for the special area drawer 2.

[0075] This embodiment realizes efficient heat dissipation of the special zone drawer 2 through the design of the boss 261 on the special zone cover plate 26, and the reasonable layout of the hot end air inlet 262 and the hot end air outlet 263. Hot air enters from the hot end air inlet 262, undergoes heat dissipation treatment by the hot end aluminum block 253, and finally exits the system from the hot end air outlet 263. This process not only improves the heat dissipation efficiency, but also ensures the uniformity of heat dissipation, effectively avoiding the occurrence of local overheating. At the same time, the design of the boss 261 increases the structural strength and improves the stability and reliability of the heat dissipation system.

[0076] In some embodiments of the present application, a first limiting rib 214 is provided at the joint between the top surface of the sealing cavity 21 and the air duct foam 24, and a second limiting rib 264 is provided at the bottom of the special area cover 26; the first limiting rib 214 and the second limiting rib 264 are embedded in each other, and the air duct foam 24 is fixed between the sealing cavity 21 and the special area cover 26 by the first limiting rib 214 and the second limiting rib 264.

[0077] The main function of the first limiting rib 214 and the second limiting rib 264 is to provide a physical locking mechanism to ensure that the air duct foam 24 is firmly clamped between the sealing cavity 21 and the special area cover 26, effectively preventing the air duct foam 24 from shifting or falling off during long-term use, thereby maintaining the stability and efficiency of the air circulation path.

[0078] This embodiment uses the complementary interlocking structure of the first limiting rib 214 and the second limiting rib 264. The shapes and sizes of the first limiting rib 214 and the second limiting rib 264 are matched and interlocked to ensure that after the dedicated area cover 26 is installed, the two can be closely interlocked to form an effective clamping of the air duct foam 24. This not only simplifies the installation process, but also improves the overall stability and durability of the structure.

[0079] Another aspect of the present application embodiment provides a refrigerator 100, referring to Fig.11 As shown, it comprises: a box 1 and a dedicated area drawer 2 arranged in the box 1 as in any one of the above embodiments.

[0080] It can be seen from the above content that the present application provides a special area drawer and a refrigerator, the interior of the drawer is cooled by a semiconductor refrigeration module, achieving a truly sealed state without the need to exchange cold with the refrigerator compartment, solving the problems of complex temperature and humidity control structures of existing special area drawers, temperature fluctuations that are easily affected by factors such as defrosting of the refrigerator refrigeration system, difficulty in achieving constant temperature and humidity, and odor contamination between the drawer and the refrigerator compartment; and providing a cooling and warming conversion drawer, which utilizes the characteristic that the cold end and hot end of the semiconductor module can be converted according to the direction of current input, so that the drawer can be switched from cooling to warming, and is used for storing tropical fruits or thawing meat, etc.

[0081] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the disclosure herein. This application is intended to cover any variations, uses or adaptations of the present disclosure, which follow the general principles of the present disclosure and include common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The specification and examples are to be considered exemplary only, and the true scope and spirit of the present disclosure are indicated by the following claims.

Claims

1. A special area drawer, characterized in that: include: A sealed cavity (21) and a drawer (22) slidably disposed in the sealed cavity (21), wherein the front of the sealed cavity (21) forms an open dedicated drawer storage space, and when the drawer (22) is closed, the dedicated drawer storage space is completely sealed; It also includes air duct foam (24) and a semiconductor refrigeration module (25), wherein the air duct foam (24) covers the top of the sealed cavity (21), and the semiconductor refrigeration module (25) is embedded in the air duct foam (24); The top of the air duct foam (24) is concave to form a hot end air duct (241), and the bottom is concave to form a cold end air duct (242); The semiconductor refrigeration module (25) comprises: a semiconductor refrigeration plate (251), a cold end aluminum block (252) and a hot end aluminum block (253); The cold end aluminum block (252) is fixed in the cold end air duct (242), the hot end aluminum block (253) is fixed in the hot end air duct (241), and the semiconductor refrigeration plate (251) is arranged between the cold end aluminum block (252) and the hot end aluminum block (253).

2. The dedicated area drawer according to claim 1, characterized in that: The semiconductor refrigeration module (25) further comprises: a connecting aluminum block (254) and a heat-insulating foam (255); The cold-end aluminum block (252) and the hot-end aluminum block (253) are fixedly connected via the connecting aluminum block (254); the connecting aluminum block (254) is embedded in the thermal insulation foam (255); and the cold-end aluminum block (252) and the hot-end aluminum block (253) are respectively arranged on both sides of the thermal insulation foam (255).

3. The dedicated area drawer according to claim 2, characterized in that: The semiconductor cooling sheet (251) is connected to an external power source, and the current input direction of the external power source is reversible.

4. The dedicated area drawer according to claim 2, characterized in that: A through hole (243) is provided in the middle of the hot end air duct (241); The step surface of the thermal insulation foam (255) fits the step surface of the through hole (243), and the thickness of the thermal insulation foam (255) is consistent with the depth of the through hole (243), so that the cold end air duct (242) and the hot end air duct (241) are sealed.

5. The dedicated area drawer according to claim 4, characterized in that: A fixing screw column (213) is provided at the top of the sealing cavity (21) below the through hole (243); The fixing screw column (213) is inserted into the semiconductor refrigeration module (25), and the semiconductor refrigeration module (25) is fixed to the top of the sealed cavity (21) through the fixing screw column (213).

6. The dedicated area drawer according to claim 1, characterized in that: The dedicated area drawer (2) further comprises a dedicated area cover plate (26) buckled on the top of the sealed cavity (21); The dedicated zone cover plate (26) squeezes the air duct foam (24), thereby sealing the cold end air duct (242) and the sealing cavity (21), and the hot end air duct (241) and the dedicated zone cover plate (26).

7. The dedicated area drawer according to claim 1, characterized in that: The top surface of the sealed cavity (21) is provided with a cold end return air port (211) at the rear portion, and a cold end supply air port (212) at the middle portion; The dedicated zone drawer (2) further comprises a cold end fan (23), wherein the cold end fan (23) is located at the front section of the cold end air duct (242) close to the cold end return air outlet (211), the cold end aluminum block (252) is located at the middle section of the cold end air duct (242), and the cold end supply air outlet (212) is located at the rear section of the cold end air duct (242).

8. The dedicated area drawer according to claim 6, characterized in that: The top of the special zone cover plate (26) is provided with a boss (261) protruding upwards; The boss (261) is provided with a hot end air inlet (262) at the front and a hot end air outlet (263) at the rear. The hot end air inlet (262) extends to the top of the hot end aluminum block (253), and the hot end air outlet (263) is located at the rear side of the hot end aluminum block (253).

9. The dedicated area drawer according to claim 6, characterized in that: A first limiting rib (214) is provided at the joint between the top surface of the sealing cavity (21) and the air duct foam (24), and a second limiting rib (264) is provided at the bottom of the special zone cover plate (26); The first limiting rib (214) is engaged with the second limiting rib (264), and the air duct foam (24) is fixed between the sealing cavity (21) and the dedicated area cover plate (26) by means of the first limiting rib (214) and the second limiting rib (264).

10. A refrigerator, characterized in that: include: A box liner (1) and a dedicated area drawer (2) as claimed in any one of claims 1 to 9 arranged in the box liner (1).

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