Drawer device and refrigerator

Abstract

The utility model discloses a drawer device and a refrigerator. The drawer device comprises a cabinet body and a drawer body. A containing cavity with an opening in the front side is defined by the cabinet body, the cabinet body is further provided with an air inlet, an air outlet, an air supply cavity and an air supply outlet communicated with the air supply cavity, the air inlet, the air outlet and the air supply outlet are all communicated with the containing cavity, and part of the opening of the air supply outlet is formed in the front side of the cabinet body; the drawer body is provided with a containing groove used for containing food materials, and the drawer body is contained in the containing cavity and seals the opening. Wherein the air outlet is formed in the bottom of the cabinet body and adjacent to the front side of the cabinet body, the opening area of the air outlet is larger than that of the air inlet, and cold air blown into the containing cavity through the air inlet flows between the outer wall face of the drawer body and the cavity wall face of the containing cavity and flows to the air outlet. According to the technical scheme, the temperatures of all parts in the drawer device can be relatively balanced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of refrigeration equipment, in particular to a drawer device and a refrigerator. BACKGROUND

[0002] In the air-cooled refrigerator, cold air can be sent to the drawer in the refrigerator through the air supply opening on the refrigerator refrigeration chamber to achieve heat exchange with the food materials in the drawer to achieve the purpose of cooling. After the cold air exchanges heat with the food materials in the drawer, the cold air is returned to the air return opening on the refrigeration chamber through the air return opening at the rear side of the drawer.

[0003] In the related art, because the refrigeration chamber is closer to the refrigeration system at the rear wall position, the temperature is relatively low, and the mode of returning air through the air return opening at the rear side of the drawer alone causes the temperature at the rear side of the drawer to be relatively low, while the temperature at other parts of the drawer, especially at the front side position, is relatively high, and in the case of too uneven temperature in the entire drawer, it is not conducive to the storage of food materials. CONTENT OF THE UTILITY MODEL

[0004] The embodiments of the present application provide a drawer device and a refrigerator, which can relatively balance the temperature of each part in the drawer device.

[0005] In a first aspect, the embodiments of the present application provide a drawer device, which comprises a cabinet and a drawer body; the cabinet is enclosed to form a containing cavity with an open front side, and the cabinet is further provided with an air inlet, an air outlet, an air supply cavity, and an air supply opening in communication with the air supply cavity; the air inlet, the air outlet, and the air supply opening are all in communication with the containing cavity, and part of the opening of the air supply opening is arranged at the front side of the cabinet; the drawer body is provided with a receiving groove for containing food materials, and the drawer body is received in the containing cavity and covers the opening; wherein the air outlet is arranged at the bottom of the cabinet and adjacent to the front side of the cabinet, the opening area of the air outlet is greater than the opening area of the air inlet, and the cold air blown into the containing cavity through the air inlet flows between the outer wall surface of the drawer body and the cavity wall surface of the containing cavity and flows to the air outlet.

[0006] In some embodiments, the opening area of the air outlet is 1.1 to 2 times the opening area of the air inlet.

[0007] In some embodiments, the opening shape of the air outlet is rectangular, and the length direction of the air outlet extends in the front-rear direction of the cabinet.

[0008] In some embodiments, the drawer body comprises a main body portion and an end cover connected to the front side of the main body portion, the main body portion is provided with the receiving groove, and the end cover covers the opening in the state of being accommodated in the accommodating cavity.

[0009] The outer wall surface of the main body portion and the inner wall surface of the cabinet body are spaced apart and form an air return cavity.

[0010] In some embodiments, the air inlet is arranged on the rear wall of the accommodating cavity and adjacent to the top wall of the accommodating cavity.

[0011] The air outlet is arranged on the bottom wall of the accommodating cavity and adjacent to the front wall of the accommodating cavity in the front-rear direction, and the air outlet communicates with the air return cavity.

[0012] In some embodiments, the distance between the bottom wall of the main body portion and the bottom wall of the accommodating cavity is 10-15 mm.

[0013] In some embodiments, the main body portion is provided with an air return port, the air return port is located in the air return cavity, and the air return port is arranged on the rear side of the main body portion away from the end cover.

[0014] In some embodiments, the air return port penetrates the upper edge of the rear side of the main body portion.

[0015] In some embodiments, the height of the air return port in the up-down direction is 8-20 mm.

[0016] In some embodiments, the opening area of the air return port is greater than the opening area of the air inlet.

[0017] In some embodiments, the opening area of the air return port is 1.1-1.8 times the opening area of the air inlet.

[0018] In some embodiments, the cabinet body comprises a back plate opposite to the opening in the front-rear direction, the back plate is provided with an air inlet communicating with the air supply cavity, and the air inlet is arranged on the back plate.

[0019] The cabinet body further comprises a partition plate, the air supply cavity is formed in the partition plate, the air inlet is located on the partition plate, and the main body portion is spaced apart from the partition plate.

[0020] In some embodiments, the opening area of the air inlet is greater than or equal to the opening area of the air outlet.

[0021] In some embodiments, the air outlet comprises a plurality of first air outlet holes and a plurality of second air outlet holes, the plurality of first air outlet holes are arranged adjacent to the end cover and are spaced apart in the left-right direction of the cabinet body;

[0022] The plurality of second air outlet holes are spaced apart from each other, the second air outlet holes have a larger opening area than the first air outlet holes, and the second air outlet holes are located on a side of the first air outlet holes away from the end cover.

[0023] In some embodiments, the height of the air supply cavity in the up-down direction is 8-20 mm.

[0024] In a second aspect, the embodiments of the present application provide a refrigerator, which comprises a cabinet and a drawer device as described in any one of the above embodiments; the cabinet is provided with a refrigeration compartment and is provided with a compartment air outlet and a compartment air return which communicate with the refrigeration compartment; the drawer device is arranged in the refrigeration compartment, and the air inlet communicates with the compartment air outlet, and the air outlet communicates with the compartment air return.

[0025] Based on the drawer device of the embodiments of the present application, the air inlet is arranged on the rear side wall of the cabinet body, and part of the air outlet is arranged on the front side of the cabinet body. The cold air entering from the air inlet is blown from the rear to the front, which helps the cold air to better reach the front part of the containing cavity and improve the air volume of the front part, thereby improving the cooling efficiency. Since the cold air naturally sinks, the air outlet is arranged on the bottom of the cabinet body and adjacent to the front side of the cabinet body, which allows the cold air to naturally sink to the air outlet on the bottom when circulating inside the containing cavity, thereby more effectively cooling the entire space, helping to achieve uniform circulation and temperature control of the cold air inside the drawer device, achieving relatively balanced temperature of each part of the drawer device, ensuring sufficient and uniform cooling capacity, and thereby improving the cooling effect of the drawer device.

[0026] In addition, in order to ensure that the cold air can effectively reach the bottom of the cabinet body, the opening area of the air outlet is larger than that of the air inlet, which can accelerate the exhaust rate of the cold air after heat exchange and accelerate the exhaust of heat inside the drawer device, thereby maintaining the relative balance of the temperature inside the drawer device. The larger opening area helps to improve the air flow speed, reduce the humidity inside the drawer device, help to exhaust more moisture, prevent excessive wetting and mold growth of food, and avoid condensation of moisture in the air at low temperature to cause frost phenomenon. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from the structures shown in the drawings without creative labor.

[0028] Figure 1 Part structure schematic diagram of an embodiment of the refrigerator of the present application;

[0029] Figure 2 Structure schematic diagram of the drawer device shown in Figure 1

[0030] Figure 3 Exploded structure schematic diagram of the drawer device shown in Figure 2

[0031] Figure 4 Sectional structure schematic diagram of the drawer device shown in Figure 2

[0032] Figure 5 Flow path schematic diagram of the interior of the drawer device shown in Figure 4

[0033] Legend of the drawings:

[0034] 100, drawer device; 10, cabinet; 11, side plate; 12, top plate; 13, bottom plate; 14, back plate; 15, partition plate; 101, containing cavity; 102, open mouth; 103, air supply cavity; 104, air supply port; 1041, first air supply hole; 1042, second air supply hole; 105, air exhaust port; 106, air inlet; 107, return air cavity; 1071, return air port; 20, drawer body; 21, main body part; 211, receiving groove; 22, end cover; 30, sliding guide rail; 40, sealing ring; 200, box body; 300, inner container; 400, refrigeration compartment; 1000, refrigerator.

[0035] The implementation, functional features and advantages of the present application will be further described with reference to the embodiments and the drawings. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solutions and advantages of the present application more clear, the embodiments of the present application will be further described in detail below with reference to the drawings.

[0037] ​​​​The following description of the application is merely exemplary in nature of the inventive subject matter, and is not intended to limit the scope of the application as expressed by the appended claims. Throughout the specification, unless otherwise specified, a description of one or more embodiments of the application does not preclude the presence of additional embodiments, whether or not they are mentioned in the specification.

[0038] In the description of the present application, it should be understood that the terms "first", "second" and the like are used to describe various elements, but not to indicate or imply relative importance. The above terms can be understood by those of ordinary skill in the art according to the specific meaning in the present application. In addition, in the description of the present application, "a plurality of" means two or more, unless otherwise specified. The association relationship of the associated objects is described, which means that there can be three relationships, for example, A and / or B can mean that A exists alone, A and B exist together, and B exists alone. The character " / " generally represents an "or" relationship between the associated objects before and after it.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the specification of the present application is only for the purpose of describing specific embodiments and is not intended to limit the present application. The term "and / or" used herein includes any and all combinations of one or more associated items.

[0040] As an indispensable electrical product in home life, the refrigerator occupies an important share of the market. With the improvement of consumers' requirements for the quality of fresh food, the requirements for the refrigerator are also getting higher and higher, requiring the refrigerator to have higher configuration and more powerful functions. In some application scenarios, the refrigerator forms a relatively independent storage space by designing a drawer to achieve freezing and refrigerating food materials.

[0041] The present application proposes a refrigerator 1000, please refer to Figure 1 and Figure 2 The refrigerator 1000 includes a cabinet 200, an inner container 300, a refrigeration system, and a drawer device 100.

[0042] The cabinet 200 adopts a hollow structure of a rectangular parallelepiped, and the cabinet 200 is configured as the outer shell of the refrigerator 1000. It can be understood that the cabinet 200 can also adopt a hollow shell structure of other shapes. The cabinet 200 can be provided with multiple mutually separated refrigeration compartments 400. Each refrigeration compartment 400 separated can serve as an independent storage space, such as a freezing chamber, a refrigerating chamber, and a variable temperature chamber, etc., to meet different refrigeration needs such as freezing, refrigeration, and variable temperature according to the different types of food materials, and to store them. The multiple refrigeration compartments 400 can be arranged in an up-down or left-right manner.

[0043] The inner container 300 is arranged in the cabinet 200. The refrigeration compartment 400 is formed in the inner container 300. It should be noted that the inner container 300 can be arranged in plurality. One refrigeration compartment 400 can be arranged in the same inner container 300, or a plurality of refrigeration compartments 400 can be arranged in the same inner container 300.

[0044] The cabinet 200 includes a cabinet shell and a cabinet door arranged at the front side of the cabinet shell. The cabinet door is used to open and close the refrigeration compartment 400. The cabinet door and the cabinet shell can be connected by a hinge, so that the cabinet door of the refrigerator 1000 can rotate around the axis of the hinge to realize the opening and closing of the cabinet door, thereby opening and closing the corresponding refrigeration compartment 400. It can be understood that the cabinet door can be arranged in plurality and correspondingly arranged with the refrigeration compartment 400. Also, a plurality of cabinet doors can simultaneously open and close one refrigeration compartment 400.

[0045] The refrigeration system is used to provide cold energy to the inner container 300, thereby realizing the functions of freezing and refrigeration. The refrigeration system mainly includes a compressor, a condenser, an evaporator, a circulating fan and a air supply pipeline. The circulating fan is arranged in the cabinet 200, and the air supply pipeline is in communication with the refrigeration compartment 400, thereby delivering cold energy to the refrigeration compartment 400. Among them, the air supply pipeline is provided with a compartment air outlet and a compartment air return port 1071 on the inner container 300.

[0046] The drawer device 100 is arranged in the refrigeration compartment 400 and is provided with an air inlet 106 and an air outlet 105 in communication with the refrigeration compartment 400. Among them, the air inlet 106 is in communication with the compartment air outlet, and the air outlet 105 is in communication with the compartment air return port 1071. In this way, the refrigeration system delivers cold air to the drawer device 100 through the compartment air outlet and the compartment air return port 1071, and exchanges heat with the food and other materials in the drawer device 100 to cool the food. The air after heat exchange is returned to the air supply pipeline through the air outlet 105 and the compartment air return port 1071 or is discharged to the outside.

[0047] In the related art, since the refrigeration compartment 400 is closer to the refrigeration system at the rear wall position, the temperature is relatively low. In the related design, it is usually designed to return air through the air return port 1071 at the rear side of the drawer device 100 only, which will cause the temperature at the rear side of the drawer device 100 to be relatively low, while the temperature at other parts of the drawer device 100, especially at the front side position, is relatively high. In the case of too uneven temperature in the whole drawer device 100, it is not conducive to the storage of food.

[0048] To solve the above problems, please refer to Figures 1 to 3 The drawer device 100 is provided in the present application. In the embodiments of the present application, the drawer device includes a cabinet 10 and a drawer body 20.

[0049] The cabinet body 10 encloses to form a containing cavity 101 with an open front 102. Specifically, the cabinet body 10 includes two side plates 11 arranged opposite in the left-right direction, a top plate 12 and a bottom plate 13 arranged opposite in the up-down direction, and a back plate 14 covering the rear side of the side plates 11, the top plate 12 and the bottom plate 13. The back plate 14 is arranged opposite the open front 102 in the front-rear direction. Thus, the two side plates 11, the top plate 12, the bottom plate 13 and the back plate 14 collectively enclose to form the containing cavity 101, and the front sides of the two side plates 11, the top plate 12 and the bottom plate 13 together define the open front 102.

[0050] It should be noted that each of the side plates 11, the top plate 12, the bottom plate 13 and the back plate 14 can be a single plate body or multiple plate bodies, such as a double-layer plate body or a multi-layer plate body structure. The plate bodies of the side plates 11, the top plate 12, the bottom plate 13 and the back plate 14 can be in a split structure and then spliced together, or can be a large plate body connected together after bending, cutting or other processes. The plate bodies can also be a whole module formed by casting different plate body parts corresponding to the side plates 11, the top plate 12, the bottom plate 13 and the back plate 14. The material of the plate bodies can be plastic or metal, such as aluminum alloy, iron alloy, etc.

[0051] The cabinet body 10 is also provided with an air inlet 106, an air outlet 105, a blowing cavity 103 and a blowing port 104 communicating with the blowing cavity 103. The air inlet 106 communicates with the blowing cavity 103, and the air inlet 106, the air outlet 105 and the blowing port 104 all communicate with the containing cavity 101. The cold air blown into the containing cavity 101 through the air inlet 106 flows between the outer wall surface of the drawer body 20 and the cavity wall surface of the containing cavity 101, and flows to the air outlet 105.

[0052] Specifically, the air inlet 106 is provided on the rear wall of the cabinet body 10, i.e. on the back plate 14. This facilitates the air inlet 106 to be connected to the air outlet on the inner liner 300 of the refrigerator arranged on the rear side of the cabinet body 10. In some refrigerator structures, the drawer device 100 of the present application can be adapted to a full-width or half-width half-drawer form of the refrigerator. Therefore, in order to be suitable for various product forms, the air inlet 106 of the present application can be provided on one side of the back plate 14 in the left-right direction. It should be noted that the left-right direction can be understood as the direction corresponding to the left and right sides of the user when the user stands in front of the refrigerator, the front-rear direction can be understood as the direction of the drawer body 20 entering and exiting the cabinet body 10, and the up-down direction is perpendicular to the left-right direction and the front-rear direction.

[0053] In some embodiments, please refer to Figures 2 to 4 The drawer body 20 includes a main body part 21 and an end cover 22 connected to the front side of the main body part 21, the main body part 21 is in sliding connection with the cabinet body 10 and can be accommodated in the accommodation cavity 101, and the end cover 22 covers the opening 102 when the drawer body 20 is accommodated in the accommodation cavity 101, that is, when the main body part 21 is accommodated in the accommodation cavity 101, the opening 102 is opposite to the back plate 14 in the front-rear direction of the cabinet body 10, and the air inlet 106 is formed on the back plate 14. Among them, the main body part 21 is formed with a receiving groove 211 opening upward to the opening 102, and the receiving groove 211 is used to contain food materials, and the main body part 21 can be provided with a sliding guide rail 30 between the opposite outer walls in the left-right direction and the cavity wall of the accommodation cavity 101, and the main body part 21 and the cabinet body 10 are in sliding connection through the sliding guide rail 30, which facilitates the user to take or place the food materials in the receiving groove 211.

[0054] In addition, the outer wall surface of the drawer body 20 and the cavity wall surface of the accommodation cavity 101 define a return air cavity 107 communicating with the air outlet 105, that is, the outer wall surface of the main body part 21 and the inner wall surface of the cabinet body 10 are spaced apart and constitute the return air cavity 107. Since the main body part 21 of the present application is a groove structure opening upward, the outer wall surface of the plurality of wall bodies constituting the main body part 21 and the cavity wall surface of the accommodation cavity 101 define the return air cavity 107. Specifically, the wall body located at the rear of the main body part 21 is spaced apart between the back plate 14, and the wall body located at the bottom of the main body part 21 is spaced apart between the cavity bottom wall of the accommodation cavity 107, thereby constituting the return air cavity 107.

[0055] The distance L1 between the bottom wall of the main body part 21 and the cavity bottom wall of the accommodation cavity 101 is 10-15mm, thereby ensuring the smooth return air in the return air cavity 107 between the bottom wall of the main body part 21 and the cavity bottom wall of the accommodation cavity 101, ensuring the air exhaust efficiency of the air outlet 105, and further ensuring the relative balance of the temperature in the drawer device 100. The value of L1 can be 10mm, 12mm, 13.5mm or 15mm, etc. In a specific embodiment of the present application, the distance L1 between the bottom wall of the main body part 21 and the cavity bottom wall of the accommodation cavity 101 is 10mm, which can reduce the space occupation in the up-down direction, thereby reducing the overall volume of the drawer device 100, as shown in Figure 1 which avoids excessive occupation of the space of the refrigeration compartment 400 inside the refrigerator 1000, and also ensures the smooth return air at the bottom of the main body part 21.

[0056] Based on the above embodiment, by setting the air supply cavity 103 in the wall body of the cabinet 10, and setting the air supply port 104 and the air exhaust port 105 on the wall body of the cabinet 10, during actual use, the cold air generated by the refrigeration system of the refrigerator is blown into the air supply cavity 103 from the air inlet 106 through the air outlet of the compartment, and then enters the containing cavity 101 through the air supply port 104, and part of the airflow is blown out inside the cabinet 10 towards the storage groove 211 to flow over the upper surface of the food in the storage groove 211 and move towards the air exhaust port 105. Thus, the food in the drawer body 20 can be cooled by cold radiation, which can reduce the loss of meat juice and dry consumption, and can reduce temperature fluctuations. The cold air exchanges heat with the food in the storage groove 211, and the cold air can directly contact the food to cool it down, so as to achieve the purpose of rapid cooling, improve the preservation and moisturizing effect, and thus ensure the quality of the food. After the cold air exchanges heat with the food, it is guided by the return air cavity 107 to the air exhaust port 105, escapes from the drawer body 20 through the air exhaust port 105, and then enters the air return port of the compartment.

[0057] As shown in Figure 4 and Figure 5 , the air inlet 106 is arranged on the rear wall of the cabinet 10, i.e. on the rear wall of the containing cavity 101, and is arranged adjacent to the top wall of the containing cavity 101. Part of the air supply port 104 is arranged on the front side of the cabinet 10. The cold air entering from the air inlet 106 blows from back to front, which helps the cold air to better reach the front part of the containing cavity 101, improves the air volume of the front part, and thus improves the cooling efficiency. Since cold air is heavier than hot air, it will naturally sink. The air exhaust port 105 is arranged on the bottom of the cabinet 10 and adjacent to the front side of the cabinet 10. By using this physical property, the cold air naturally sinks to the air exhaust port 105 on the bottom when circulating inside the containing cavity 101, thus more effectively cooling the entire space, which helps to achieve uniform circulation and temperature control of the cold air inside the drawer device 100, and relatively balanced temperature of each part of the drawer device 100, to ensure sufficient and uniform cooling capacity, and thus improve the cooling effect of the drawer device 100.

[0058] It should be noted that the front part of the accommodating cavity 101 refers to the part of the cabinet 10 on the center axis of the opposite two sides in the front-rear direction, which is located on the front side of the center axis. The partial opening of the air supply port 104 is arranged on the front side of the cabinet 10, and the projection of the opening part of the air supply port 104 in the up-down direction coincides with the projection of the main body part 21, that is, the air supply port 104 is arranged on the front side of the front wall plate of the main body part 21 in the front-rear direction, so that the cold air blown out by the air supply port 104 can directly flow back from the front side of the main body part 21 to the air exhaust port 105 arranged adjacent to the front side of the cabinet 10. The backflow of the cold air from the front side of the main body part 21 will result in a shorter heat exchange path, insufficient heat exchange, waste of cold energy, and lower heat exchange efficiency.

[0059] Similarly, the air exhaust port 105 is arranged on the bottom of the cabinet 10 and adjacent to the front side of the cabinet 10. The front side of the cabinet 10 refers to the part of the cabinet 10 on the center axis of the opposite two sides in the front-rear direction, which is located on the front side of the center axis. The air exhaust port 105 is arranged adjacent to the front side of the cabinet 10, and the projection of the air exhaust port 105 in the up-down direction coincides with the projection of the main body part 21, that is, the air exhaust port 105 is arranged on the front side of the front wall plate of the main body part 21 in the front-rear direction, which can also prevent the backflow of cold air from the front side of the main body part 21 and ensure the heat exchange efficiency.

[0060] For the refrigerator 1000 provided with the refrigeration evaporator, the refrigeration evaporator is usually arranged on the rear part of the refrigerator 1000 and on the rear side of the drawer device 100. The air exhaust port 105 is arranged on the bottom of the cabinet 10 and adjacent to the front side of the cabinet 10, which is beneficial to prevent the convection between the hot air generated during defrosting of the evaporator and the air discharged from the air exhaust port 105 of the drawer device 100, avoid temperature fluctuation in the drawer device 100, and further control the temperature in the drawer device 100 within the range of -5-5℃, thereby obtaining better preservation effect. The partial opening of the air supply port 104 is arranged on the front side of the cabinet 10, and the cold air is blown into the main body part 21 from the air supply port 104 and is discharged to the air exhaust port 105 through the return air cavity 107. The air exhaust port 105 is arranged on the bottom of the cabinet 10 and adjacent to the front side of the cabinet 10, so that the cold air blown to the main body part 21 flows from front to back, and then sinks from the rear side of the main body part 21 to the bottom, and then flows from back to front to the air exhaust port 105 arranged on the front side and is discharged. In this way, the cold air can cover the main body part 21 more comprehensively, and the food materials contained in the storage groove 211 can also be better covered and heat exchanged, so that the cooling effect is more balanced.

[0061] In order to ensure that the cold air can effectively reach the bottom of the cabinet 10, the opening area S2 of the air outlet 105 is larger than the opening area S1 of the air inlet 106, which can accelerate the discharge rate of the cold air after heat exchange, accelerate the discharge of heat in the drawer device 100, thereby maintaining the relative balance of the internal temperature of the drawer device 100, and the larger opening area S2 helps to increase the air circulation speed, reduce the humidity inside the drawer device 100, help to discharge more moisture, prevent the food from being excessively wet and mold growth, and avoid the water in the air from condensing to cause frost phenomenon at low temperature. If the opening area S1 and the opening area S2 are similar or the opening area S2 is small, the cold air may be discharged through the air outlet 105 before it has sufficiently cooled the food materials in the receiving groove 211, which is called air short circuit. By increasing the opening area S2, the occurrence of air short circuit can be reduced.

[0062] Specifically, the opening area S2 of the air outlet 105 is 1.1 times to 2 times of the opening area S1 of the air inlet 106, that is, S2 can be 1.1 times, 1.5 times, 1.85 times or 2 times of S1. In an embodiment of the present application, the opening area S2 of the air outlet 105 is 1.5 times of the opening area S1 of the air inlet 106, which ensures that the opening area S2 is not too large to cause excessive air exhaust, reduce the continuous cooling of cold energy in the drawer device 100, and also ensures that the opening area S2 is not too small to reduce the air exhaust volume. If the opening area S2 is too small, too much cold air will be left in the drawer device 100, which will cause the air to be difficult to circulate, the flow rate of the air will increase when passing through the small air outlet 105, and the noise will also increase.

[0063] In some embodiments, referring again to Figures 2 to 5 , the opening shape of the air outlet 105 is rectangular, and the length direction of the air outlet 105 extends in the front-rear direction of the cabinet 10, that is, the length direction of the longer edge of the air outlet 105 is the same as the length direction of the cabinet 10, which can form a smooth flow path when the cold air flows from the return air cavity 107 to the air outlet 105, thereby improving the return air efficiency. Of course, the opening cross section of the air outlet 105 can also be circular, rhombic, polygonal or the like, which is not limited in the present application.

[0064] Further, the air outlet 105 can be arranged on the other side wall of the accommodating cavity 101 in the left-right direction and adjacent to the bottom wall of the accommodating cavity 101, or the air outlet 105 can be arranged on the bottom wall of the accommodating cavity 101 and adjacent to the front wall of the accommodating cavity 101 in the front-rear direction. That is, the air outlet 105 of the present application can be arranged on the bottom plate 13, and the air outlet 105 is communicated with the air return cavity 107, so that the cold air blown into the accommodating cavity 101 from the air inlet 104 can move in the up-down direction to fully exchange heat with the upper surface of the food, so that the purpose of rapid cooling can be achieved, and the moisture of the food can be taken away as little as possible.

[0065] In some embodiments, the cabinet 10 further comprises a partition plate 15, the main body part 21 is arranged in the partition plate 15, the air supply cavity 103 is formed in the partition plate 15, and the air inlet 104 is arranged on the partition plate 15. The partition plate 15 can be in the form of a single-layer plate or a multi-layer plate. For example, Figure 4 In the example shown in the above embodiment, the partition plate 15 is formed by stacking two plates, and the air supply cavity 103 is formed between the two plates. The air inlet 104 is arranged on the plate located at the lower layer of the two partition plates 15. In this way, the cold air in the air supply cavity 103 can be blown downward through the air inlet 104, i.e., the cold air is delivered into the receiving groove 211 of the drawer body 20 from top to bottom.

[0066] In other embodiments, the air supply cavity 103 can not only be arranged in the partition plate 15, but also can be partially arranged in the partition plate 15 and partially arranged in the side plate 11 or even in the bottom plate 13. The advantage of this is that the cold air flows in the partition plate 15, the side plate 11 or even the bottom plate 13, so that the cabinet 10 can directly exchange heat between the walls to transfer cold air to the drawer body 20 and further cool the food. In this way, the drawer body 20 has more heat exchange paths, so that the cooling effect can be improved.

[0067] Of course, when the air supply cavity 103 is only arranged in the partition plate 15, the volume of the cabinet 10 can not be too large, or the volume of the accommodating cavity 101 can be large, so that more food can be accommodated. The following content continues to develop in the manner that the air supply cavity 103 is arranged on the partition plate 15 and the air inlet 104 is arranged on the top wall of the accommodating cavity 101.

[0068] In the structure where the partition plate 15 is formed by stacking two plate bodies, the air supply cavity 103 is enclosed between the two plate bodies, and the air supply port 104 is arranged on the plate body located at the relatively lower layer of the two partition plates 15. The height interval of the air supply cavity 103 in the up-down direction is 8-20 mm. It should be noted that the height interval of the air supply cavity 103 in the up-down direction refers to the distance L2 between the lower surface of the upper partition plate 15 and the upper surface of the lower partition plate 15, and L2 is 8-20 mm, i.e., L2 can be 10 mm, 12 mm, 13.5 mm, or 15 mm, etc. In this way, the space occupation in the up-down direction can be reduced, thereby reducing the overall volume of the drawer device 100, as shown in Figure 1 The space inside the refrigerator 1000 is not excessively occupied by the cooling chamber 400, and the air supply of the air supply cavity 103 is smooth, which is helpful to realize uniform circulation and temperature control of the cold air inside the drawer device 100, realize relative temperature balance of each part of the drawer device 100, ensure sufficient and uniform cold coverage, and thus improve the cooling effect of the drawer device 100.

[0069] In some embodiments, the main body part 21 is provided with an air return port 1071 located in the air return cavity 107, and the air return port 1071 is arranged on the rear side of the main body part 21 away from the end cover 22. It can be understood that the air return port 1071 of the present application is located on the rear side of the main body part 21, which can be arranged on the rear wall plate of the main body part 21 away from the end cover 22, or can be arranged on the side wall plate between the back plate 14 and the end cover 22, and located at the part of the side wall plate close to the back plate 14. In order to reduce the possibility of the air return port 1071 being blocked by food, and to ensure the smoothness of the air return process, the air return port 1071 penetrates the upper edge of the rear side of the main body part 21.

[0070] Similarly, in order to reduce the possibility of the air return port 1071 being blocked by food, and to ensure the smoothness of the air return process, the height interval of the air return port 1071 in the up-down direction is 8-20 mm. It should be noted that the air return port 1071 is arranged on the rear wall plate of the main body part 21 away from the end cover 22, and the height interval of the air return port 1071 in the up-down direction refers to the distance L3 between the upper end surface of the rear wall plate of the main body part 21 and the lower surface of the partition plate 15, and L3 can be 8 mm, 10 mm, 15 mm, 18.5 mm, or 20 mm, etc. In a specific embodiment of the present application, the height L3 of the air return port 1071 is 18 mm, which can ensure smooth air return, improve air return volume, thereby improve air return efficiency, and also ensure that the rear wall plate of the main body part 21 has a relatively high height to accommodate food, preventing food from leaking out.

[0071] Further, the opening area S3 of the return air outlet 1071 is greater than the opening area S1 of the air inlet 106, that is, the opening area S3 of the return air outlet 1071 is 1.1 to 1.8 times the opening area S1 of the air inlet 106. In an embodiment of the present application, the opening area S3 of the return air outlet 1071 can be 1.5 times the opening area S1, to ensure smooth return of air, which helps to achieve uniform circulation and temperature control of cold air inside the drawer device 100, to achieve relatively balanced temperature in each part of the drawer device 100, to ensure sufficient and uniform cooling coverage, thereby improving the cooling effect of the drawer device 100.

[0072] In some embodiments, the opening area S4 of the air supply outlet 104 is greater than or equal to the opening area S1 of the air inlet 106, thereby increasing the air supply of the air supply outlet 104 and ensuring smooth air supply. Specifically, the opening area S4 of the air supply outlet 104 can be 1 to 2 times the opening area S1 of the air inlet 106, which helps to achieve uniform circulation and temperature control of cold air inside the drawer device 100, to achieve relatively balanced temperature in each part of the drawer device 100, to ensure sufficient and uniform cooling coverage, thereby improving the cooling effect of the drawer device 100.

[0073] In some embodiments, please refer to Figures 3 to 5 , the air supply outlet 104 includes a plurality of first air supply holes 1041 and a plurality of second air supply holes 1042. The arrangement of the plurality of first air supply holes 1041 and the plurality of second air supply holes 1042 can reduce the flow rate of cold air during its entry into the containing cavity 101 via the plurality of first air supply holes 1041 and the plurality of second air supply holes 1042, to achieve more precise humidity and temperature control, so that the water carried by the foodstuff is not excessively removed during the cooling process, reducing temperature fluctuations caused by continuous air blowing. This can maintain the quality of the foodstuff for a longer period of time.

[0074] The plurality of first air supply holes 1041 are arranged adjacent to the end cover 22 and are spaced apart along the left-right direction of the cabinet 10. The plurality of second air supply holes 1042 are spaced apart from each other, and the second air supply holes 1042 are located on the side of the first air supply holes 1041 away from the end cover 22, that is, the second air supply holes 1042 are closer to the middle of the entire drawer device 100 than the first air supply holes 1041. The above arrangement allows the cold air entering the drawer body 20 from the air supply cavity 103 to be distributed through the second air supply holes 1042 and discharged to the position closer to the middle of the drawer body 20, so that excessive cold air is not directly blown to the front side of the drawer body 20, causing excessive cold carried by the end cover 22 on the front side to cause frosting. This also allows the cold air in the drawer body 20 to be distributed relatively uniformly.

[0075] The opening area of the second air supply hole 1042 is larger than that of the first air supply hole 1041, and the spacing between adjacent two first air supply holes 1041 is smaller than that between adjacent two second air supply holes 1042, so that the arrangement of the first air supply hole 1041 is more dense than that of the second air supply hole 1042, thereby ensuring sufficient front air volume and concentration of front air supply in the air supply process from back to front under a longer air supply path, and also enabling the cold air in the drawer body 20 to be relatively uniformly distributed, while the relatively large opening area of the second air supply hole 1042 can ensure the air supply volume of the front and middle parts, thereby ensuring the cooling efficiency.

[0076] Specifically, the hole diameter of the first air supply hole 1041 and the second air supply hole 1042 can be set to 5-10 mm. If the first air supply hole 1041 and the second air supply hole 1042 are too large, i.e., greater than 10 mm, the air supply volume of a single first air supply hole 1041 or second air supply hole 1042 will be too large, which will cause the food to be locally over-cooled after being blown, which is not conducive to achieving temperature balance. If the first air supply hole 1041 and the second air supply hole 1042 are too small, i.e., less than 5 mm, the air supply volume of a single first air supply hole 1041 or second air supply hole 1042 will be too small, which will result in low air supply efficiency and poor temperature and humidity control. In addition, the number of first air supply holes 1041 and second air supply holes 1042 can be 4, 5, 6, 7, 8, etc. In this way, the flow rate of the cold air can be limited within a reasonable range, and the required flow rate for cooling can also be ensured. This part of the cold air cooling as auxiliary cooling can minimize the loss of moisture of the food.

[0077] In addition, the hole shapes of the first air supply hole 1041 and the second air supply hole 1042 can be the same or different. In a specific embodiment of the present application, the first air supply hole 1041 is square and the second air supply hole 1042 is circular to achieve different air volume and air speed through the two. Of course, the first air supply hole 1041 and the second air supply hole 1042 can also be set as long and narrow long-shaped openings or long strip corrugated openings to meet the requirements of flow rate and flow volume, which are not limited in the present application.

[0078] In some embodiments, the drawer device 100 further comprises a sealing ring 40 arranged on the end cover 22 or the cabinet body 10. The sealing ring 40 surrounds the opening 102 and is clamped between the end cover 22 and the peripheral edge of the opening 102. In this embodiment, the sealing ring 40 can be arranged on the end cover 22, which can effectively prevent the cold air in the containing cavity 101 from leaking and ensure the cold quantity in the containing cavity 101, thereby ensuring the quality of the food.

[0079] The same or similar reference numerals in the drawings of the embodiments correspond to the same or similar components; in the description of the present application, it is understood that if the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right" and the like are based on the orientations or positional relationships shown in the drawings, they are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore the terms describing the positional relationships in the drawings are only used for exemplary illustration and cannot be understood as a limitation on the present application, for those skilled in the art, the specific meanings of the above terms can be understood according to the specific circumstances.

[0080] The above is only a preferred embodiment of the present application, and is not used to limit the present application, any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A drawer device, characterized in that, include: The cabinet, enclosing a cavity with an open front, is equipped with an air inlet, an air outlet, an air supply chamber, and an air outlet communicating with the air supply chamber. The air inlet, air outlet, and air outlet are all connected to the cavity. A portion of the air outlet's opening is located on the front side of the cabinet. The drawer body is provided with a storage slot for holding food, and the drawer body is housed in the receiving cavity and the opening is sealed. The exhaust vent is located at the bottom of the cabinet and adjacent to the front side of the cabinet. The opening area of ​​the exhaust vent is larger than the opening area of ​​the air inlet. The cold air blown into the receiving cavity through the air inlet flows between the outer wall of the drawer body and the cavity wall and flows to the exhaust vent.

2. The drawer device as claimed in claim 1, characterized in that, The opening area of ​​the exhaust vent is 1.1 to 2 times the opening area of ​​the air inlet.

3. The drawer device as claimed in claim 2, characterized in that, The exhaust vent has a rectangular opening shape, and its length extends along the front-to-back direction of the cabinet.

4. The drawer device as claimed in claim 1, characterized in that, The drawer body includes a main body and an end cover connected to the front side of the main body. The main body is provided with the storage groove. When the main body is housed in the receiving cavity, the end cover seals the opening. The outer wall of the main body and the inner wall of the cabinet are spaced apart to form a return air cavity.

5. The drawer device as claimed in claim 4, characterized in that, The air inlet is located on the rear wall of the receiving cavity and is adjacent to the top wall of the receiving cavity; The exhaust vent is located on the bottom wall of the receiving cavity and is positioned adjacent to the front wall of the receiving cavity in the front-back direction. The exhaust vent is connected to the return air cavity.

6. The drawer device as claimed in claim 4, characterized in that, The distance between the bottom wall of the main body and the bottom wall of the receiving cavity is 10~15mm.

7. The drawer device as claimed in claim 4, characterized in that, The main body is provided with a return air vent, which is located inside the return air cavity and is located on the rear side of the main body away from the end cover.

8. The drawer device as claimed in claim 7, characterized in that, The return air vent extends through the upper rear edge of the main body.

9. The drawer device as claimed in claim 7, characterized in that, The height range of the return air vent in the vertical direction is 8~20mm.

10. The drawer device as claimed in claim 7, characterized in that, The opening area of ​​the return air vent is larger than the opening area of ​​the air inlet.

11. The drawer device as claimed in claim 10, characterized in that, The opening area of ​​the return air inlet is 1.1 to 1.8 times the opening area of ​​the air inlet.

12. The drawer device according to any one of claims 4 to 11, characterized in that, The cabinet includes a back panel that is opposite to the opening in the front-to-back direction. An air inlet communicating with the air supply cavity is provided on the back panel. The cabinet also includes a partition, the air supply cavity is formed in the partition, the air supply outlet is located on the partition, and the main body is spaced apart from the partition.

13. The drawer device as claimed in claim 12, characterized in that, The opening area of ​​the air outlet is greater than or equal to the opening area of ​​the air inlet.

14. The drawer device as claimed in claim 12, characterized in that, The air outlet includes a plurality of first air outlets and a plurality of second air outlets. The plurality of first air outlets are disposed adjacent to the end cover and are spaced apart along the left and right directions of the cabinet. Multiple second air supply holes are arranged at intervals, the opening area of ​​the second air supply hole is larger than the opening area of ​​the first air supply hole, and the second air supply hole is located on the side of the first air supply hole that is away from the end cover.

15. The drawer device as claimed in claim 12, characterized in that, The height range of the air supply cavity in the vertical direction is 8~20mm.

16. A refrigerator, characterized in that, include: The enclosure contains a refrigeration chamber and is equipped with a chamber air outlet and a chamber air return outlet that communicate with the refrigeration chamber. as well as The drawer device as described in any one of claims 1 to 15, wherein the drawer device is disposed in the refrigeration room, and the air inlet is connected to the air outlet of the room, and the exhaust outlet is connected to the return air outlet of the room.

Images