Multi-path air supply special area drawer and refrigerator

Abstract

The utility model provides a multi-way air supply special area drawer and refrigerator, including drawer, sealed cavity, first fan, air duct piece and semiconductor module, the drawer has first open cavity, sealed cavity has second open cavity, the first open cavity becomes sealed space after the drawer enters the second open cavity, and the semiconductor module is sealed space after the drawer enters the second open cavity. An air return port and a plurality of air supply ports which are communicated with the first open cavity are formed in the sealing cavity at certain intervals, the first fan is fixed to the sealing cavity and arranged above the air return port, the air duct piece is fixed to the sealing cavity, through holes formed between the air supply ports and the air return port are formed in the air duct piece, and the air duct piece is provided with a concave first air duct; the inner wall of the first air channel and the outer wall of the sealing cavity define a first air channel cavity communicating with the air supply outlet and the air return inlet, one end of the through hole penetrates through the first air channel, and the semiconductor module is fixed in the through hole in a sealed mode and extends downwards to be close to the sealing cavity. The semiconductor module is adopted to carry out multi-path air supply and independent temperature control on the drawer, the temperature control effect is good, and odor tainting is not prone to occurring.

Description

Technical Field

[0001] This utility model relates to the field of refrigerator technology, and in particular to a truly sealed multi-way air supply drawer installed inside a refrigerator and using a semiconductor refrigeration module to provide cooling, as well as a refrigerator using this multi-way air supply drawer. Background Technology

[0002] In modern life, there is a wide variety of food ingredients, and seafood, dried goods, and fresh fruits and vegetables all have different requirements for storage environments. Refined partitioned storage and professional preservation technology can keep all kinds of food in their optimal environment. Based on this, current high-end refrigerators will have dedicated drawers with independent temperature and humidity control functions inside the compartments.

[0003] However, most existing dedicated drawers cannot circulate cold air independently and need to circulate cold air with the refrigerator compartment. Therefore, they cannot achieve a true seal, which makes it easy for odors to mix and for temperature control to be inaccurate. Utility Model Content

[0004] To address the shortcomings of existing technologies, the purpose of this invention is to provide a multi-channel air supply drawer and refrigerator, which uses a semiconductor module to provide multi-channel air supply and independent temperature control for the drawer, resulting in good temperature control and reducing the likelihood of odor mixing.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] A multi-channel air supply drawer includes:

[0007] The drawer has a first opening.

[0008] The sealed cavity has a second opening. After the drawer enters the second opening, the first opening becomes a sealed space. The sealed cavity is provided with a return air vent and several air supply vents at certain intervals. The return air vent is connected to the first opening to draw air, and the air supply vents are connected to the first opening to deliver air in several directions.

[0009] The first fan is fixed on the sealed cavity and positioned above the return air inlet;

[0010] A duct component is fixed on the sealing cavity. The duct component has a through hole and a recessed first duct on the inner side. One end of the through hole passes through the first duct and is disposed between the air supply port and several air return ports. The inner wall of the first duct and the outer wall of the sealing cavity form a first duct cavity. The first duct cavity is connected to the air return port and several air supply ports.

[0011] A semiconductor module is sealed and fixed within the through-hole and extends downward to approach the sealing cavity;

[0012] A cover plate is provided on the air duct component and slightly presses against the air duct component.

[0013] Furthermore, the return air vent is located on the top rear side of the sealed cavity, the air supply vent includes a first air supply vent located in the top middle of the sealed cavity, the through hole is located between the first air supply vent and the return air vent, the top of the drawer is provided with a first opening communicating with the first opening cavity, the first opening is located below the first air supply vent and the return air vent, the air duct component includes a first top plate located at the top of the sealed cavity, the first air duct is located at the bottom of the first top plate, and the cover plate includes a second top plate located on the first top plate and slightly pressing the first top plate.

[0014] Furthermore, the air outlet includes a second air outlet, which is disposed on the side of the sealed cavity. The air duct component includes a first side plate, which is disposed on the side of the first top plate. The first air duct extends to the bottom of the first top plate and into the inner side of the first side plate. The drawer side is provided with a second drawer air inlet that communicates with the first opening. One end of the second air outlet is connected to the second drawer air inlet and the other end is connected to the first air duct. The cover includes a second side plate, which is disposed on the side of the second top plate and slightly presses against the second top plate.

[0015] Furthermore, the first air duct includes a first recess, a second recess, and a third recess. The first recess is located on the rear bottom side of the first top plate and is opposite to the return air inlet. The first recess is used to house the first fan. The second recess is located in the middle bottom of the first top plate. One end of the through hole passes through the first recess and the second recess. The second recess is opposite to the first air outlet. The third recess is located on the inner side of the first side plate and is opposite to the second air outlet. The third recess and the second recess are connected by a channel.

[0016] Furthermore, the air duct component includes a first top plate and two first side plates, the two first side plates being symmetrically arranged on both sides of the first top plate. The sealing cavity and the drawer are both rectangular cavity structures. The front part of the sealing cavity is provided with a second opening that communicates with the second opening cavity. Two second air outlets are symmetrically arranged on the left and right sides of the sealing cavity, and two second drawer air inlets are symmetrically arranged on the left and right sides of the drawer.

[0017] Furthermore, the air outlet includes a third air outlet, which is located on the top front side of the sealed cavity. The air duct component includes a fourth recess, which is positioned opposite to the third air outlet. The drawer has a fourth air outlet on its top front side. The drawer has an air passage duct inside, and the bottom of the drawer has a first drawer air inlet. One end of the fourth air outlet is connected to the third air outlet, and the other end of the fourth air outlet is connected to the top of the air passage duct. The bottom of the air passage duct is connected to the first drawer air inlet.

[0018] Furthermore, the drawer includes a drawer body, an air duct cover, and an air passage section. The first opening is located at the top of the drawer body, and a third opening is located on the front side of the drawer body. The air duct cover is fixed to the front side of the drawer body, and a fourth air outlet is located at the top of the air duct cover. A first drawer air inlet is located at the bottom of the air duct cover. The air passage section is fixed to the air duct cover, and a through air duct is provided inside the air passage section.

[0019] Furthermore, the outer side of the air duct component has a recessed second air duct, the other end of the through hole passes through the second air duct, a second fan is also provided in the second air duct, the semiconductor module extends upward to the second air duct and is close to the cover plate, the cover plate has an air inlet and an air outlet arranged at a certain distance, the air inlet and the second fan are positioned opposite each other, the air inlet and the air outlet are arranged on both sides of the through hole, and the inner wall of the cover plate and the inner wall of the second air duct form a second air duct cavity.

[0020] Furthermore, the air duct component is provided with one or more grooves.

[0021] A refrigerator includes a receiving cavity in which the aforementioned multi-flow air-supply zone drawer is received.

[0022] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0023] The multi-channel air supply drawer and refrigerator provided by this utility model use a semiconductor module for cooling inside the drawer, eliminating the need for cold exchange with the refrigerator compartment and achieving true sealing of the multi-channel air supply drawer, thus preventing food inside the drawer from absorbing odors from the refrigerator compartment.

[0024] The multi-channel air supply drawer and refrigerator provided by this utility model have a semiconductor module for cooling inside the drawer, so the temperature fluctuation is not affected by factors such as defrosting of the refrigerator's cooling system, making it easier to achieve constant temperature and humidity.

[0025] The multi-channel air supply drawer and refrigerator provided by this utility model have a semiconductor module located at the top of the sealed cavity, which occupies less storage space in the refrigerator.

[0026] The multi-channel air supply drawer and refrigerator provided by this utility model have the air inlet and outlet of the semiconductor module set on the cover plate, which does not damage the appearance of the existing refrigerator. At the same time, the heat dissipation circulation air and the refrigerator return air exchange heat, the semiconductor refrigeration module dissipates heat fully, and the temperature impact on the refrigerator compartment is small.

[0027] The multi-channel air supply drawer and refrigerator provided by this utility model have multiple air outlets set on the top of the sealed cavity, the side of the sealed cavity, and the drawer to supply air in multiple directions. The air circulates three-dimensionally inside the drawer, achieving uniform cooling of the food inside.

[0028] The multi-channel air supply drawer and refrigerator provided by this utility model utilize the characteristic that the first temperature control block of the semiconductor module can switch with the direction of current input, so that the function of the drawer can be switched from cooling to warm storage, for storing tropical fruits or defrosting meat, etc. Attached Figure Description

[0029] The accompanying drawings, which are included to provide a further understanding of the present invention, form part of this application. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0030] Figure 1 This is a schematic diagram of the structure of the refrigerator according to the first embodiment of this utility model;

[0031] Figure 2 This is a schematic diagram of the structure of the drawer in the special area according to the first embodiment of this utility model;

[0032] Figure 3 This is a schematic diagram of the structure of the drawer after it has been pulled out in the first embodiment of this utility model;

[0033] Figure 4 This is a schematic diagram of the sealing cavity in the first embodiment of the present invention;

[0034] Figure 5 This is a schematic diagram of the structure of the first fan installed on the sealed cavity in the first embodiment of the present invention;

[0035] Figure 6 This is a schematic diagram of the structure of the air duct component installed on the sealing cavity according to the first embodiment of this utility model;

[0036] Figure 7 This is a schematic diagram of the structure of the second fan and semiconductor module installed on the air duct component according to the first embodiment of this utility model;

[0037] Figure 8 This is a schematic diagram of the cover plate according to the first embodiment of the present utility model;

[0038] Figure 9This is a schematic diagram of the structure of the air duct component according to the first embodiment of this utility model;

[0039] Figure 10 This is a schematic diagram of the semiconductor module according to the first embodiment of the present invention;

[0040] Figure 11 This is an exploded view of the semiconductor module according to the first embodiment of this utility model;

[0041] Figure 12 This is a schematic diagram of the drawer structure according to the first embodiment of the present invention;

[0042] Figure 13 This is a schematic diagram of the structure of the air duct mask and air passage of the first embodiment of this utility model;

[0043] Figure 14 This is a cross-sectional view of the drawer in the special area according to the first embodiment of this utility model;

[0044] Figure 15 This is a schematic diagram of the structure of the air duct component installed on the sealing cavity according to the second embodiment of this utility model;

[0045] Figure 16 This is a schematic diagram of the structure of the cover plate and sealing cavity in the second embodiment of this utility model;

[0046] Figure 17 This is a schematic diagram of the drawer structure according to the second embodiment of the present invention;

[0047] Among them, 100, refrigerator;

[0048] 1. Tank liner;

[0049] 2. Multi-channel air supply area drawer;

[0050] 21. Sealed cavity; 211. Return air inlet; 212. First air supply outlet; 213. Second air supply outlet; 214. Third air supply outlet; 215. Screw post; 216. First limiting rib; 217. Second opening; 218. Second opening cavity; 219. First sliding member;

[0051] 22. Drawer; 221. Air duct cover; 2211. Fourth air outlet; 2212. First drawer air inlet; 222. Air passage; 2221. Air passage duct; 223. Drawer body; 2231. Second drawer air inlet; 2232. First opening; 2233. First opening cavity; 224. Second sliding component;

[0052] 23. First fan;

[0053] 24. Air duct component; 241. First air duct; 2411. First recess; 2412. Second recess; 2413. Third recess; 2414. Fourth recess; 2415. Channel; 242. Second air duct; 2421. Fifth recess; 243. Through hole; 2431. First stepped surface; 244. First air duct cavity; 245. Second air duct cavity; 246. Groove; 247. First top plate; 248. First side plate;

[0054] 25. Semiconductor module; 251. Semiconductor wafer; 252. First temperature regulating block; 253. Second temperature regulating block; 254. Connecting block; 255. Heat insulation block; 2551. Second stepped surface;

[0055] 26. Second fan;

[0056] 27. Cover plate; 271. Air inlet; 272. Air outlet; 273. Second limiting rib; 274. Second top plate; 275. Second side plate. Detailed Implementation

[0057] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0058] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and 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," "second," etc., 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," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0059] In the description of the embodiments of this utility model, unless otherwise stated, " / " means "or". For example, A / B can mean A or B. "And / or" in the text is merely a description of the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist simultaneously, and B exists alone. In addition, in the description of the embodiments of this utility model, "multiple" means two or more.

[0060] In some processes described in the embodiments of this utility model, multiple operations or steps are included in a specific order. However, it should be understood that these operations or steps may not be executed in the order they appear in the embodiments of this utility model, or they may be executed in parallel. The sequence number of the operation is only used to distinguish different operations, and the sequence number itself does not represent any execution order. In addition, these processes may include more or fewer operations, and these operations or steps may be executed sequentially or in parallel, and these operations or steps may be combined.

[0061] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0062] Example 1

[0063] Please see Figure 1 As shown, the multi-way air supply zone drawer 2 of this embodiment is placed in the refrigerator 100. The refrigerator 100 includes a cabinet liner 1 and a multi-way air supply zone drawer 2, which is disposed inside the cabinet liner 1.

[0064] Please see Figure 1 and Figure 2 As shown, the multi-channel air supply drawer 2 provided in this embodiment includes a sealed cavity 21 and a drawer 22. The drawer 22 is detachably connected to the sealed cavity 21. The drawer 22 is used to store food or objects that need to be preserved at a certain temperature. The multi-channel air supply drawer 2 provided in this embodiment can be used for multi-channel air supply and independent temperature control, and can also be placed in a refrigerator 100 or other storage device to achieve independent temperature control.

[0065] Please see Figure 2 , Figure 3 and Figure 12 As shown, the top of drawer 22 has a first opening 2232, and the interior of drawer 22 has a first oral cavity 2233 communicating with the first opening 2232. The front side of the sealed cavity 21 has a second opening 217 and a second oral cavity 218 communicating with the second opening 217.

[0066] Drawer 22 enters and exits the second opening 218 through the second opening 217 to achieve a detachable connection between drawer 22 and sealed cavity 21. When drawer 22 enters sealed cavity 21, the second opening 218 is completely closed, making the first opening 2233 a sealed space.

[0067] Please see Figure 3As shown, in order to supply air to the drawer 22 and cool or heat the drawer 22 to achieve independent temperature control of the drawer 22, the sealed cavity 21 is provided with an air supply port and a return air port 211. The return air port 211 is used for exhaust, and the air supply port is used for supplying air. When the drawer 22 enters or exits the second opening 218 through the second opening 217, the return air port 211 and the air supply port are connected to the first opening 2233, so that circulating air is formed in the first opening 2233.

[0068] Please see Figures 3-5 As shown, the air outlet includes a first air outlet 212. The top of the sealed cavity 21 is provided with a return air outlet 211 and the first air outlet 212 at a certain distance. The top of the sealed cavity 21 is fixed with a first fan 23 and the first fan 23 is positioned above the return air outlet 211 so that the first fan 23 draws air through the return air outlet 211.

[0069] Please see Figure 5 and Figure 6 As shown, the air duct component 24 is mounted on the sealing cavity 21. The air duct component 24 has a through hole 243, which is located between the first air supply port 212 and the return air port 211. The bottom inner side of the air duct component 24 has an upwardly recessed first air duct 241. One end of the bottom of the through hole 243 extends downward through the first air duct 241. The first fan 23 is located inside the first air duct 241. The inner wall of the first air duct 241 and the outer wall of the sealing cavity 21 form a first air duct cavity 244. The first air duct cavity 244 is connected to the first air supply port 212 and the return air port 211. The semiconductor module 25 is fixed inside the through hole 243 and extends downward so that the lower part of the semiconductor module 25 is close to the sealing cavity 21.

[0070] The number of first air outlets 212 is one or more. When there are multiple first air outlets 212, the multiple first air outlets 212 are arranged at a certain distance on the top of the sealing cavity 21.

[0071] When the first fan 23 is turned on, the circulating air flows through the return air inlet 211, passes through the semiconductor module 25, and then flows downwards from the top of the sealed cavity 21 to the drawer 22 through the first air outlet 212. After the temperature of the stored items is adjusted, the air flows back into the first air duct 241 through the return air inlet 211 and circulates again until the temperature is adjusted to the preset temperature, completing the air circulation. Then, the first fan 23 is turned off. The circulating air circulates within the first air duct 241 and the drawer 22, forming an internal circulation system that does not exchange heat with the outside environment, thus creating a true seal in the multi-way air supply zone drawer 2.

[0072] By changing the direction of the current in the semiconductor module 25, the drawer 22 can be cooled or heated.

[0073] The multi-channel air-supply drawer 22 provided in this embodiment uses a semiconductor module 25 for cooling or heating, achieving a truly sealed state without exchanging cold air with the refrigerator 100 compartments. This solves the problems of complex structure of existing drawer temperature and humidity control, temperature fluctuations being easily affected by factors such as defrosting of the refrigerator 100 cooling system, difficulty in achieving constant temperature and humidity, and cross-contamination of odors between food in drawer 22 and refrigerator 100 compartments. Further, this embodiment provides a cooling-heating conversion drawer 22, which utilizes the characteristic that the cold and hot ends of the semiconductor module 25 can switch according to the direction of current input, allowing the function of drawer 22 to be switched from cooling to heating, for storing tropical fruits or defrosting meat, etc.

[0074] Please see Figure 4 and Figure 5 As shown, for aesthetic and safety reasons, the return air vent 211 is a closed hole.

[0075] In this embodiment, the number of return air vents 211 is one or more.

[0076] Please see Figure 2 As shown, the sealed cavity 21 has a rectangular cavity structure. The air supply outlets include a first air supply outlet 212, a second air supply outlet 213, and a third air supply outlet 214. A return air outlet 211 is located on the rear side of the top of the sealed cavity 21, the first air supply outlet 212 is located in the middle of the top, the second air supply outlets 213 are located on the left and right sides of the sealed cavity 21, and the third air supply outlet 214 is located on the front side of the top. The duct component 24 is made of duct foam and is fitted onto the sealed cavity 21. The duct foam seals the first air supply outlet 212, the second air supply outlet 213, the third air supply outlet 214, and the return air outlet 211. The duct foam also provides insulation for the sealed cavity 21, preventing external temperatures from affecting the interior of the sealed cavity 21. The duct component 24 is fitted onto the sealed cavity 21.

[0077] Please see Figure 6 As shown, in order to dissipate heat from the semiconductor module 25, the top of the air duct component 24 has a downwardly recessed second air duct 242, and one end of the top of the through hole 243 extends upward through the second air duct 242. A second fan 26 is also provided inside the second air duct 242 to dissipate heat from the semiconductor module 25.

[0078] Please see Figure 2 and Figure 8As shown, it also includes a cover plate 27, which is snapped onto the sealing cavity 21. The cover plate 27 is set on the air duct component 24 and slightly presses the air duct component 24. The cover plate 27 has an air inlet 271 and an air outlet 272 set at a certain distance. The air inlet 271 corresponds to the position of the second fan 26. The inner wall of the second air duct 242 and the bottom of the cover plate 27 form a second air duct cavity 245. External air can dissipate heat from the semiconductor module 25 through the second air duct cavity 245. The cover plate 27 is fastened to the top of the air duct component 24 and exerts a squeezing effect on the air duct component 24, ensuring the sealing between the first air duct 241 and the sealing cavity 21, and between the second air duct 242 and the cover plate 27, further realizing the true seal of the multi-way air supply drawer 2. For aesthetics and safety, the air inlet 271 is a closed hole.

[0079] The semiconductor module 25 operates based on the Peltier effect, a thermoelectric effect. When a direct current is applied to a thermocouple pair composed of N-type and P-type materials, in addition to generating irreversible Joule heating, heat absorption and release phenomena occur at the thermocouple junction, thereby achieving cooling or heating of the object.

[0080] Please see Figure 10 and Figure 11 As shown, the semiconductor module 25 includes a first temperature regulating block 252 and a second temperature regulating block 253. The first temperature regulating block 252 is disposed in the first air duct 241 and near the top of the sealed cavity 21. The second temperature regulating block 253 is disposed in the second air duct 242 and near the bottom of the cover plate 27. The first fan 23 is disposed outside the first temperature regulating block 252, and the second fan 26 is disposed outside the second temperature regulating block 253. The first fan 23 realizes the internal circulation of air in the drawer 22, and the second fan 26 dissipates heat from the semiconductor module 25.

[0081] Please see Figure 6 , Figure 7 , Figure 9 , Figure 10 and Figure 11As shown, the semiconductor module 25 also includes a heat insulation block 255, a connecting block 254, and a semiconductor chip 251. To further ensure the sealing between the first air duct 241 and the sealing cavity 21, and between the second air duct 242 and the cover plate 27, a first stepped surface 2431 is provided on the through hole 243, and a second stepped surface 2551 is provided on the heat insulation block 255. The second stepped surface 2551 is sealed and snapped onto the first stepped surface 2431, so that the heat insulation block 255 completely seals the first air duct 241 and the second air duct 242. The heat insulation block 255 has a receiving hole, the connecting block 254 is sealed and snapped into the receiving hole, the semiconductor chip 251 is fixed on the connecting block 254, the first temperature regulating block 252 is fixed on the lower side of the heat insulation block 255, and the second temperature regulating block 253 is fixed on the upper side of the heat insulation block 255. The first temperature regulating block 252 is located at the bottom of the through hole 243 and near the top of the sealing cavity 21, and the second temperature regulating block 253 is located at the top of the through hole 243 and near the bottom of the cover plate 27.

[0082] In this embodiment, the drawer 22 is cooled or refrigerated by the semiconductor module 25, and the temperature fluctuation is not affected by factors such as defrosting of the refrigerator 100's refrigeration system, making it easier to achieve constant temperature and humidity. Furthermore, the semiconductor module 25 is located at the top of the sealed cavity 21, occupying less storage space in the refrigerator 100. The air inlet 271 and air outlet 272 of the semiconductor module 25 are located in the gap between the cover plate 27 and the air duct component 24, without damaging the existing appearance of the refrigerator 100. Simultaneously, the circulating air for heat dissipation exchanges heat with the return air of the refrigerator 100, ensuring sufficient heat dissipation by the semiconductor module 25 and minimizing temperature impact on the refrigerator 100's compartments.

[0083] Please see Figure 5 and Figure 6 As shown, in order to fix the semiconductor module 25, a screw post 215 is provided on the top of the sealing cavity 21. The semiconductor module 25 is fixed to the top of the sealing cavity 21 by the screw post 215 and is disposed in the through hole 243.

[0084] Please see Figure 2 , Figure 3 and Figure 12 As shown, drawer 22 is slidably connected to sealed cavity 21. A first sliding member 219 is provided on the inner wall of sealed cavity 21, and a second sliding member 224 is provided on the outer wall of drawer 22. The first sliding member 219 and the second sliding member 224 are slidably connected. One of the first sliding member 219 and the second sliding member 224 is a sliding groove, and the other of the first sliding member 219 and the second sliding member 224 is a slider.

[0085] Please see Figure 4 and Figure 14As shown, in order to uniformly supply air to the drawer 22 and achieve uniform temperature inside the drawer 22, the air outlet also includes a second air outlet 213. At least one second air outlet 213 is also provided on the side of the sealed cavity 21. The air duct component 24 extends to the side of the sealed cavity 21 so that the inner wall of the first air duct 241 and the top outer wall and side outer wall of the sealed cavity 21 form a first air duct cavity 244. The first air duct cavity 244 is connected to one or more second air outlets 213. When the drawer 22 enters the sealed cavity 21, one side of the second air outlet 213 is connected to the first opening 2233. When the air duct component 24 is fixed to the top of the sealed cavity 21, the other side of the second air outlet 213 is connected to the first air duct 241.

[0086] Specifically, please refer to Figure 12 and Figure 14 As shown, at least one second drawer air inlet 2231 is also provided on the side of drawer 22. One end of each second air outlet 213 is connected to at least one second drawer air inlet 2231 and the other end is connected to the first air duct 241.

[0087] In this embodiment, drawer 22 has a rectangular cavity structure, and a second drawer air inlet 2231 is provided on both the left and right sides of drawer 22.

[0088] Please see Figure 4 and Figure 14 As shown, at least one third air outlet 214 is provided on the top front side of the sealed cavity 21. When the air duct component 24 is fixed on the top of the sealed cavity 21, the top of the third air outlet 214 is connected to the first air duct 241. A fourth air outlet 2211 is provided on the top front side of the drawer 22. An air passage duct 2221 is provided inside the drawer 22. A first drawer air inlet 2212 is provided at the bottom of the drawer 22. One end of the fourth air outlet 2211 is connected to the third air outlet 214. The other end of the fourth air outlet 2211 is connected to the top of the air passage duct 2221. The bottom of the air passage duct 2221 is connected to the first drawer air inlet 2212.

[0089] Please see Figure 12 and Figure 13 As shown, drawer 22 includes drawer body 223, air duct cover 221 and air passage 222. A first opening 2232 is provided on the top of drawer body 223. A third opening is provided on the front side of drawer body 223. Air duct cover 221 is fixed on the front side of drawer body 223. A fourth air outlet 2211 is provided on the top of air duct cover 221. A first drawer air inlet 2212 is provided on the bottom of air duct cover 221. Air passage 222 is fixed on air duct cover 221. A through air passage duct 2221 is provided inside air passage 2222.

[0090] When the first fan 23 is turned on, the circulating air flows through the return air inlet 211 and then through the semiconductor module 25. The first path of circulating air flows through the first air outlet 212 and downwards from the top of the sealed cavity 21 to the drawer 22. The second path of circulating air flows through the second air outlet 213 and then sideways to the drawer 22. The third path of circulating air flows through the third air outlet 214, then continues through the fourth air outlet 2211 and through the air duct 2221 to the bottom of the drawer 22. After the temperature of the stored items is regulated by these three circulation paths, the air flows back into the first air duct 241 through the return air inlet 211 and circulates again until the temperature reaches the preset temperature, completing the air circulation. Then, the first fan 23 is turned off. In this embodiment, the second air outlet 213 can be located on the left, right, and rear sides of the sealed cavity 21. By supplying air from the top, bottom, and sides of the drawer 22, uniform cooling and true sealing of the multi-path air supply zone drawer 2 are achieved.

[0091] Please see Figure 9 As shown, the first air duct 241 includes a first recess 2411, a second recess 2412, a third recess 2413, and a fourth recess 2414. The first recess 2411 is positioned opposite to the return air inlet 211 and is used to house the first fan 23. The second recess 2412 is positioned opposite to the first air outlet 212, the third recess 2413 is positioned opposite to the second air outlet 213, and the fourth recess 2414 is positioned opposite to the third air outlet 214. The bottoms of the first recess 2411, the second recess 2412, the third recess 2413, the fourth recess 2414, and the through hole 243 are connected.

[0092] In this embodiment, the cross-section of the air duct component 24 is n-shaped. The air duct component 24 includes a first top plate 247 and a first side plate 248. The first side plate 248 is disposed on the side of the first top plate 247. The first air duct 241 extends from the bottom of the first top plate 247 to the inner side of the first side plate 248. A first recess 2411, a second recess 2412 and a fourth recess 2414 are disposed on the inner side of the first top plate 247. The fourth recess 2414 is disposed on the inner side of the first side plate 248. In this specific embodiment, the air duct component 24 has a first top plate 247 and two first side plates 248. The two first side plates 248 are respectively disposed on both sides of the first top plate 247. The rear side of the bottom of the first top plate 247 has a first recess 2411. The middle part of the first top plate 247 has a through hole 243 and a second recess 2412. The through hole 243 is disposed between the first recess 2411 and the second recess 2412. The front side of the bottom of the first top plate 247 has a fourth recess 2414. The inner side of each of the two first side plates 248 has a third recess 2413. The third recess 2413 and the second recess 2412 are connected through a channel 2415. Therefore, the first recess 2411, the through hole 243, the second recess 2412, the fourth recess 2414 and the two third recesses 2413 are connected.

[0093] Please see Figure 6 As shown, the second air duct 242 includes a fifth recess 2421 for housing the second fan 26. One or more grooves 246 are provided on the outer side of the second air duct 242. By providing grooves 246, the material cost of the air duct component 24 is reduced. In this embodiment, grooves 246 are provided on both outer sides of the second air duct 242.

[0094] Please see Figure 8 As shown, the cover plate 27 includes a second top plate 274 and a second side plate 275. The second top plate 274 is used to slightly press the first top plate 247, and the second side plate 275 is used to slightly press the second side plate 275.

[0095] Example 2

[0096] In order to provide a lower-cost multi-channel air supply drawer 2, in this embodiment, the sealed cavity 21 does not have a second air outlet 213, and the drawer 22 does not have a second drawer air inlet 2231.

[0097] Please see Figures 15-17As shown, the return air vent 211 is located on the top rear side of the sealed cavity 21, and the air supply vents include a first air supply vent 212 and a third air supply vent 214. One or more first air supply vents 212 are located in the middle of the top of the sealed cavity 21, and a through hole 243 is located between the first air supply vent 212 and the return air vent 211. One or more third air supply vents 214 are located on the top front side of the sealed cavity 21. A first opening 2232 is located on the top of the drawer 22, and a second opening 217 is located on the front side of the sealed cavity 21. The air duct component 24 is detachably fixed to the top of the sealed cavity 21. The duct component 24 includes a first top plate 247, which is fixed to the top of the sealed cavity 21. The cover plate 27 has an air inlet 271 and an air outlet 272 arranged at a certain distance. The cover plate 27 includes a second top plate 274, which is disposed on the first top plate 247. The cover plate 27 is snapped onto the sealed cavity 21. The air inlet 271 and the air outlet 272 are disposed on both sides of the through hole 243. The air inlet 271 and the second fan 26 are positioned corresponding to each other. The duct component 24 is fixed to the top of the sealed cavity 21.

[0098] Specifically, the sealing cavity 21 is provided with one or more first limiting ribs 216, which are used to fix the first top plate 247, and the cover plate 27 is provided with one or more second limiting ribs 273, which are used to further fix the first top plate 247.

[0099] Example 3

[0100] Example 3 provides a refrigerator 100, which is used in the above-mentioned multi-way air supply zone drawer 2, and the multi-way air supply zone drawer 2 is housed in the refrigerator 100.

[0101] The above embodiments are merely illustrative examples of the technical solution of this utility model. The methods involved in this utility model are not limited to those described in the above embodiments, but are subject to the scope defined by the claims. Any modifications, additions, or equivalent substitutions made by those skilled in the art based on these embodiments are within the scope of protection claimed by the claims of this utility model.

Claims

1. A multi-air-sending zone drawer, characterized by, The drawer comprises: a drawer with a first opening cavity; a sealed cavity with a second opening cavity, the first opening cavity becomes a sealed space after the drawer enters the second opening cavity, a return air inlet and a plurality of air supply inlets are arranged on the sealed cavity at a distance, the return air inlet is connected with the first opening cavity to draw air, and the plurality of air supply inlets are connected with the first opening cavity to supply a plurality of air paths; a first fan fixed on the sealed cavity and arranged above the return air inlet; an air duct piece fixed on the sealed cavity, the air duct piece has a through hole and a recessed first air duct on the inner side, one end of the through hole penetrates the first air duct and is arranged between the air supply inlet and the plurality of return air inlets, the inner wall of the first air duct and the outer wall of the sealed cavity form a first air duct cavity, and the first air duct cavity is connected with the return air inlet and the plurality of air supply inlets; a semiconductor module fixedly arranged in the through hole and extending downward to be close to the sealed cavity; a cover plate arranged on the air duct piece and slightly pressing the air duct piece.

2. The drawer of claim 1, wherein: the return air inlet is arranged at the top rear side of the sealed cavity, the air supply inlet comprises a first air supply inlet arranged at the top middle of the sealed cavity, the through hole is arranged between the first air supply inlet and the return air inlet, the top of the drawer is provided with a first opening connected with the first opening cavity, the first opening is arranged below the first air supply inlet and the return air inlet, the air duct piece comprises a first top plate arranged at the top of the sealed cavity, the first air duct is arranged at the bottom of the first top plate, and the cover plate comprises a second top plate arranged on the first top plate and slightly pressing the first top plate.

3. The drawer of claim 2, wherein: the air supply inlet comprises a second air supply inlet arranged at the side of the sealed cavity, the air duct piece comprises a first side plate arranged at the side of the first top plate, the first air duct extends to the inner side of the first side plate at the bottom of the first top plate, the side of the drawer is provided with a second drawer air inlet connected with the first opening cavity, one end of the second air supply inlet is connected with the second drawer air inlet and the other end is connected with the first air duct, and the cover plate comprises a second side plate arranged at the side of the second top plate and slightly pressing the second top plate.

4. The drawer of claim 3, wherein: The first air duct comprises a first recess, a second recess and a third recess. The first recess is arranged at the bottom rear side of the first top plate and opposite to the return air outlet position, and is used for placing the first air blower. The second recess is arranged at the middle of the bottom of the first top plate. One end of the through hole penetrates between the first recess and the second recess. The second recess is opposite to the first air supply outlet position. The third recess is arranged at the inner side of the first side plate and opposite to the second air supply outlet position. The third recess and the second recess are communicated through a channel.

5. The multi-path air supply area drawer according to claim 4, characterized in that: The air duct member comprises a first top plate and two first side plates, and the two first side plates are symmetrically arranged on both sides of the first top plate. The sealing cavity and the drawer are both rectangular cavity structures. The front side of the sealing cavity is provided with a second opening communicated with the second opening cavity. The two second air supply outlets are symmetrically arranged on the left side and the right side of the sealing cavity. The two second drawer air inlets are symmetrically arranged on the left side and the right side of the drawer.

6. The multi-path air supply area drawer according to claim 1, characterized in that: The air supply outlet comprises a third air supply outlet arranged at the top front side of the sealing cavity. The air duct member comprises a fourth recess opposite to the third air supply outlet position. The top front side of the drawer is provided with a fourth air supply outlet. The drawer is provided with an air passing duct. The bottom of the drawer is provided with a first drawer air inlet. One end of the fourth air supply outlet is communicated with the third air supply outlet. The other end of the fourth air supply outlet is communicated with the top of the air passing duct. The bottom of the air passing duct is communicated with the first drawer air inlet.

7. The multi-path air supply area drawer according to claim 6, characterized in that: The drawer comprises a drawer body, an air duct mask and an air passing part. The first opening is arranged at the top of the drawer body. The front side of the drawer body is provided with a third opening. The air duct mask is fixed on the front side of the drawer body. The top of the air duct mask is provided with a fourth air supply outlet. The bottom of the air duct mask is provided with a first drawer air inlet. The air passing part is fixed on the air duct mask. The air passing part is provided with a through air passing duct.

8. The multi-path air supply area drawer according to claim 1, characterized in that: The outer side of the air duct member has a recessed second air duct. The other end of the through hole penetrates the second air duct. The second air duct is further provided with a second air blower. The semiconductor module extends upward to the second air duct and is close to the cover plate. The cover plate has an air inlet and an air outlet arranged at a certain distance. The air inlet is opposite to the second air blower. The air inlet and the air outlet are arranged on both sides of the through hole. The inner wall of the cover plate and the inner wall of the second air duct enclose a second air duct cavity.

9. The multi-path air supply area drawer according to claim 7, characterized in that: The air duct member is provided with one or more grooves.

10. A refrigerator characterized by comprising: The multi-path air supply area drawer according to any one of claims 1-9 is accommodated in the accommodating cavity. The multi-path air supply area drawer according to any one of claims 1-9 is accommodated in the accommodating cavity.

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