Cold storage equipment

Abstract

The utility model relates to the technical field of electrical equipment, and discloses a cold storage device which comprises a box body, a door body, a drawer and an air supply device, the box body is provided with a chamber with an opening, the door body is arranged at the opening and used for opening and closing the chamber, the drawer is provided with a storage space, a gap between the drawer and the chamber forms a first area, and the air supply device is arranged in the chamber. Comprising an air supply plate body and a heating part, the air supply plate body is provided with a first air supply outlet and a second air supply outlet, the first air supply outlet communicates with the first area to supply air to the first area, the heating part heats airflow flowing through the first air supply outlet, and the second air supply outlet communicates with the storage space to supply air to the storage space. According to the cold storage equipment, the air supply device is arranged in the compartment, the first air supply outlet blows out high-temperature airflow through the heating piece, a frost layer condensed on the cold surface can be melted, the refrigeration effect of the refrigerator is guaranteed, the second air supply outlet blows out low-temperature airflow and is communicated with the storage space of the drawer, and the storage quality of food is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of electrical equipment, especially to a cold storage equipment. BACKGROUND

[0002] This section provides only background information relating to the present disclosure and can not necessarily be prior art.

[0003] The temperature of the deep-freezing refrigerator chamber is usually lower than -30 DEG C, when the door body of the refrigerator is opened, the humid hot air in the external environment can enter the deep-freezing chamber, thus frost is easily formed on the surface of the drawer and the door body, and the frost layer not only affects the opening and closing of the refrigerator door body and the drawer, but also affects the refrigeration effect of the refrigerator. SUMMARY

[0004] The utility model discloses a cold storage equipment, including:

[0005] The utility model discloses a cold storage equipment, including:

[0006] The box body has a chamber with an opening;

[0007] The door body is arranged at the opening, and the door body is used for opening or closing the chamber;

[0008] The drawer is push-pullly arranged in the chamber, and the drawer has a storage space; the gap between the drawer and the chamber forms a first area;

[0009] The air supply device is arranged in the chamber, and the air supply device includes an air supply plate body and a heating element arranged on the air supply plate body; the air supply plate body has a first air supply port and a second air supply port; the first air supply port is communicated with the first area; the heating element is used for heating the airflow flowing through the first air supply port; the first air supply port is used for air supply for the first area; and the second air supply port is communicated with the storage space and is used for air supply for the storage space.

[0010] The cold storage equipment of the utility model passes through setting air supply device in the chamber, and the air supply device includes an air supply plate body and a heating element; the air supply plate body has a first air supply port and a second air supply port; the first air supply port is communicated with the first area formed between the drawer and the chamber; the heating element heats the airflow flowing through the first air supply port; then the heated airflow is blown out through the first air supply port; high-efficiency frost removal effect can be obtained under high-temperature environment; the frost layer on the outside of the drawer and the inside of the chamber can be melted; the refrigeration effect of the refrigerator is ensured; meanwhile, the second air supply port is communicated with the storage space of the drawer; the second air supply port blows out the airflow with low temperature and without heating; the safety and freshness of the food stored in the drawer can be ensured.

[0011] In addition, the cold storage device according to the utility model also has the following additional technical features:

[0012] In some embodiments of the utility model, the cold storage device further comprises a heat exchange assembly, the heat exchange assembly has a first air outlet, the first air outlet is in communication with the air supply plate body, a first air supply channel is defined on the air supply plate body, a first air inlet is arranged on the air supply plate body, and two ends of the first air supply channel are in communication with the first air inlet and the first air outlet respectively.

[0013] In some embodiments of the utility model, in the vertical direction, the air supply plate body is arranged above the drawer, and in the vertical direction, the air supply plate body is arranged above the drawer, and the air supply plate body is arranged above the drawer.

[0014] In some embodiments of the utility model, the number of the first air outlet is multiple, and multiple first air outlets are arranged along the circumference of the drawer.

[0015] In some embodiments of the utility model, in the horizontal direction, the distance between the first air outlet and the outer edge of the drawer is L1, wherein 4mm≤L1≤7mm.

[0016] In some embodiments of the utility model, in the vertical direction, the distance between the lower edge of the first air outlet on the side of the air supply plate body close to the rear side of the drawer and the lower edge of the first air inlet is L2, wherein 18mm≤L2≤25mm.

[0017] In some embodiments of the utility model, a second air supply channel is defined on the air supply plate body, and two ends of the second air supply channel are in communication with the first air inlet and the second air outlet respectively.

[0018] The second air outlet is located on the side of the air supply plate body facing the drawer, and the second air outlet is located in the area of the orthographic projection.

[0019] In some embodiments of the utility model, the heating element comprises an electric heating film, a heating wire or a resistance wire, and the heating element is arranged in the first air supply channel.

[0020] In some embodiments of the utility model, the air supply device further comprises an air return inlet, the air return inlet is arranged at the bottom of the chamber, and the air return inlet is in communication with the heat exchange assembly.

[0021] In some embodiments of the utility model, the drawer is provided with a flow guide member on the side facing the door body, and the flow guide member is used to guide the airflow from the first air outlet to the return air outlet.

[0022] In some embodiments of the utility model, the air supply device further comprises a temperature detection member, which is arranged on the first air outlet and is used to detect the air supply temperature of the first air outlet.

[0023] In some embodiments of the utility model, the air supply device further comprises a heat insulation layer, which is arranged on the side of the air supply plate body facing the drawer. BRIEF DESCRIPTION OF DRAWINGS

[0024] Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The accompanying drawings are included to provide a description of the preferred embodiments and are not intended to limit the scope of the application. Moreover, like reference numerals designate similar parts throughout the several views in the drawings. In the drawings:

[0025] Figure 1 A structural schematic view of the cold storage device according to the embodiments of the utility model is schematically shown;

[0026] Figure 2 A partial structural schematic view of the cold storage device according to the embodiments of the utility model is schematically shown from a first perspective;

[0027] Figure 3 A partial structural schematic view of the cold storage device according to the embodiments of the utility model is schematically shown from a second perspective;

[0028] Figure 4 A structural schematic view of the condenser of the cold storage device according to the embodiments of the utility model is schematically shown;

[0029] Figure 5 A structural schematic view of the air supply plate body of the cold storage device according to the embodiments of the utility model is schematically shown from a first perspective;

[0030] Figure 6 A structural schematic view of the air supply plate body of the cold storage device according to the embodiments of the utility model is schematically shown from a second perspective;

[0031] Figure 7 A partial structural schematic view of the air supply plate body of the cold storage device according to the embodiments of the utility model is schematically shown;

[0032] Figure 8 A front projection schematic view of the air supply plate body and the drawer of the cold storage device according to the embodiments of the utility model is schematically shown.

[0033] Figure 9 For Figure 8 Enlarged view at A in Figure 1;

[0034] Figure 10 A structure schematic view of an upper sub-drawer of the cold storage device according to the embodiment of the present application is shown schematically;

[0035] Figure 11 A structure schematic view of a lower sub-drawer of the cold storage device according to the embodiment of the present application is shown schematically.

[0036] The reference signs are as follows:

[0037] 100, cold storage device;

[0038] 1, cabinet; 11, compartment;

[0039] 2, door body;

[0040] 3, drawer; 31, upper sub-drawer; 32, lower sub-drawer;

[0041] 41, evaporator; 42, air duct cover plate; 421, first air outlet; 422, second air outlet;

[0042] 51, air supply plate body; 511, first air supply port; 512, second air supply port; 513, first air inlet; 52, heating element; 521, electric heating film; 53, air return port; 54, flow guide element; 541, flow guide baffle; 55, temperature detection element; 551, temperature sensor; 56, heat insulation layer; 561, heat preservation cotton;

[0043] 6, sliding structure; 61, sliding part; 611, pulley; 62, sliding fitting part; 621, sliding groove;

[0044] 7, slide rail. DETAILED DESCRIPTION

[0045] Exemplary embodiments of the present disclosure will be described in greater detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it is understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that the present disclosure can be more thoroughly understood, and the scope of the present disclosure can be accurately conveyed to those skilled in the art.

[0046] It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises", "comprising", "includes", "including" and "has" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order in which they are described, unless specifically identified as an order dependent step. It is also to be understood that additional or alternative steps can be employed.

[0047] Although the terms first, second, third, etc. can be used herein to describe various elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first", "second", and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.

[0048] Spatially relative terms, such as "inner", "outer", "inward", "outward", "lower", "bottom", "top", "upper", and the like, can be used herein for ease of description to describe one element or feature's relationship to another element(s) or feature(s) as illustrated in the figures. Such spatially relative terms can be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Thus, the example term "below" can encompass both an orientation of above and below. The device can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

[0049] The temperature in the deep-freezing compartment of a refrigerator is usually below -30℃. When storing items in the refrigerator, such as putting items into the refrigerator or taking items out of the refrigerator, the door of the refrigerator needs to be opened. After the door of the refrigerating device is opened, the space in the refrigerator is in communication with the external environment, and the humid hot air in the external environment is easy to enter the refrigerator. The temperature in the refrigerator is relatively low, and the water vapor carried in the humid hot air will sublimate and frost on the inner wall of the refrigerator, resulting in poor refrigeration effect of the refrigerator. When the refrigerator is running in the deep-freezing mode, the saturation enthalpy of the air supply is extremely low, the frosting capacity of the circulating air is low, the frost on the surface of the storage compartment cannot be effectively transferred to the evaporator for melting, and as the set temperature of the freezing compartment decreases, and with the periodic opening of the door, the frost on the surface of the compartment is more serious, and the opening force exceeds the specified standard. With the gradual accumulation of the frost layer, the opening force gradually increases, affecting the user experience, and reducing the available space of the storage compartment and the working efficiency of the refrigerator, and even endangering the storage quality of food.

[0050] Therefore, the cold storage device 100 provided by the embodiment is proposed to blow out a gas flow with a higher temperature through the first air supply port 511, melt the frost layer condensed on the cold surface on the outside of the drawer 3 and the inside of the compartment 11 in a high-temperature environment, ensure the refrigeration effect of the refrigerator, and ensure the storage quality of food, thereby solving the above technical problems.

[0051] As shown in Figures 1 to 11 According to the embodiment of the utility model, a cold storage device 100 is provided, which is a deep-freezing refrigerator. The cold storage device 100 comprises a box body 1, a door body 2, a drawer 3, and an air supply device. The box body 1 is internally formed with a compartment 11 with one side opening. The preset temperature of the deep-freezing compartment 11 is not higher than -40℃. The door body 2 is arranged at the opening. The door body 2 can be used to open or close the box body 1. The box body 1 is internally provided with the drawer 3 for storing food. The drawer 3 is arranged in the compartment 11 in a push-pull manner. The drawer 3 has a storage space, and food can be placed in the storage space. The gap between the outer side wall of the drawer 3 and the inner side wall of the compartment 11 forms a first region. The air supply device is arranged in the compartment 11. The air supply device comprises an air supply plate body 51 and a heating element 52 arranged on the air supply plate body 51. The air supply plate body 51 has a first air supply port 511 and a second air supply port 512. The first air supply port 511 is in communication with the first region. The heating element 52 is used to heat the gas flow flowing through the first air supply port 511. The first air supply port 511 is used to supply air to the first region. The second air supply port 512 is in communication with the storage space and is used to supply air to the storage space.

[0052] The cold storage equipment 100 is provided with a air supply device in the compartment 11, the air supply device comprises an air supply plate body 51 and a heating element 52, the air supply plate body 51 is provided with a first air supply port 511 and a second air supply port 512, the first air supply port 511 is communicated with a first area formed by the gap between the drawer 3 and the compartment 11, the heating element 52 heats the airflow flowing through the first air supply port 511, and then blows out the airflow with a higher temperature through the first air supply port 511, so that the high-efficiency defrosting effect can be obtained in a high-temperature environment, the frost layer condensed on the surface of the outer side of the drawer 3 and the inner side of the compartment 11 can be melted, the refrigeration effect of the refrigerator is ensured, and the perception and use experience of the user are improved; meanwhile, the second air supply port 512 is communicated with the storage space of the drawer 3, the second air supply port 512 blows out the airflow with a lower temperature without heating, and the safety and freshness of the food stored in the drawer 3 can be ensured.

[0053] In some embodiments of the utility model, the cold storage equipment 100 further comprises a heat exchange assembly, the heat exchange assembly is provided with a first air outlet 421, a first air supply channel is limited on the air supply plate body 51, the air supply plate body 51 is provided with a first air inlet 513, and the two ends of the first air supply channel are communicated with the first air inlet 513 and the first air supply port 511 respectively. Specifically, the heat exchange assembly comprises an evaporator 41, an air duct cover plate 42 and a fan, the space where the evaporator 41 is located is communicated with the air duct cover plate 42, the air duct cover plate 42 is provided with the first air outlet 421 and a second air outlet 422, the outlet end of the first air outlet 421 is communicated with the inlet end of the first air supply channel, the outlet end of the first air supply channel is communicated with the first air supply port 511, the fan can convey the air in the box body 1 to the evaporator 41 to be cooled, and the cold air generated by the evaporator 41 is blown to the inside of the box body 1 through the air duct cover plate 42. The outlet end of the second air outlet 422 is communicated with the compartment 11 and is used for conveying the low-temperature airflow to the inside of the compartment 11. The first air supply port 511 can flow the airflow with a higher temperature to the first area through the first air supply channel to defrost, and the recommended temperature interval is-10 DEG C to-30 DEG C, the higher the temperature is, the stronger the defrosting capacity is, the high-efficiency defrosting effect can be obtained in a high-temperature environment, the frost layer condensed on the surface of the outer side of the drawer 3 and the inner side of the compartment 11 can be melted, and the refrigeration effect of the refrigerator is ensured. During defrosting, the larger the high-temperature airflow volume is, the more conducive to defrosting. Generally, the minimum near-wall surface wind speed of the part with serious frosting is about 0.4 m / s, and the setting of the fan speed and the design of the air outlet size need to consider this requirement. During defrosting, the fan speed can be increased to increase the airflow volume and improve the defrosting effect.

[0054] In some embodiments of the utility model, along vertical direction, the air supply plate body 51 is arranged above the drawer 3, and along the vertical direction, the air supply plate body 51 is formed in the plane of the drawer 3 The first air outlet 511 is located on the side of the air supply plate body 51 towards the drawer 3, and is located on the circumferential outside of the drawer 3. Specifically, the air supply plate body 51 is arranged in the compartment 11, and is located above the drawer 3 along the vertical direction, the cross-sectional shape of the air supply plate body 51 and the drawer 3 is rectangular, the projection area of the drawer 3 in the vertical direction is located in the projection area of the air supply plate body 51 in the vertical direction, that is, the four edges of the drawer 3 are located in the four edges of the air supply plate body 51, the number of the first air outlet 511 is multiple, multiple first air outlets 511 are arranged along the circumference of the drawer 3, and along the horizontal direction, the distance between multiple first air outlets 511 and the outer edge of the drawer 3 is L1, the value range of L1 is 4mm≤L1≤7mm. For example, L1 can be 4mm, 5mm, 6mm, 7mm. When removing frost, the airflow with higher temperature flows out through the first air outlet 511 arranged around the air supply plate body 51 and does not enter the storage space inside the drawer 3, but flows through the outer surface of the drawer 3 to remove frost, the distance between the edge of the drawer 3 and the first air outlet 511 is arranged in the above range, which ensures the frost removal effect and does not affect the food in the storage space.

[0055] In some embodiments of the utility model, along the vertical direction, the distance from the lower edge of the first air outlet 511 on the side of the air supply plate body 51 close to the rear side of the drawer 3 to the lower edge of the first air inlet 513 is L2, and the value range of L2 is 18mm≤L2≤25mm. Specifically, the first air outlet 511 on the air supply plate body 51 has different regions, which are the first air supply area close to the front side of the drawer 3, the second air supply area close to the rear side of the drawer 3 and the third air supply area close to the left and right sides of the drawer 3, the first air inlet 513 is arranged on the side of the air supply plate body 51 close to the second air supply area, the first air outlet 511 on the first air supply area is located below the first air inlet 513, and the distance L2 between the first air outlet 511 on the first air supply area and the first air inlet 513 is 18mm-25mm, for example, L2 can be 18mm, 19mm, 20mm, 22mm, 25mm, which can prevent the airflow with higher temperature and the airflow with lower temperature from crossing and mixing to affect the frost removal effect.

[0056] In some embodiments of the utility model, the second air supply channel is defined on the air supply plate body 51, and the two ends of the second air supply channel are respectively communicated with the first air inlet 513 and the second air outlet 512. The second air outlet 512 is located on the side of the air supply plate body 51 facing the drawer 3, and the second air outlet 512 is located in the area of the orthographic projection. Specifically, the outlet end of the first air outlet 421 is communicated with the inlet end of the second air supply channel, the outlet end of the second air supply channel is communicated with the second air outlet 512, and the second air outlet 512 can flow the airflow with a lower temperature to the storage space in the drawer 3 through the second air supply channel. It is recommended that the temperature is lower than-35 DEG C, so as to guarantee the storage quality of the food in the storage space. The plurality of second air outlets 512 are uniformly and spacedly arranged on the side of the air supply plate body 51 facing the storage space, which is beneficial to improve the uniformity of the load temperature.

[0057] In some embodiments of the utility model, the heating member 52 includes an electric heating film, a heating wire or a resistance wire, and the heating member is arranged in the first air supply channel. In the embodiment, the heating member 52 is an electric heating film 521, which can be a PI (Polyimide, polyimide) electric heating film, a silicone rubber electric heating film, etc. The electric heating film 521 is arranged in the first air supply channel of the air supply plate body 51, and the electric heating film 521 is attached to the first air supply area, the second air supply area and the third air supply area on the air supply plate body 51 to correspond to the position of the first air outlet 511. When defrosting, the electric heating film 521 heats the airflow in the first air supply channel, and the heated airflow flows out through the first air outlet 511, thereby defrosting the first area between the drawer 3 and the chamber 11. The outside of the drawer 3 and the inside of the chamber 11 can obtain efficient defrosting effect in a high temperature environment, which helps to melt the frost layer condensed on the cold surface and guarantees the refrigeration effect of the refrigerator. In other embodiments, the heating member 52 can also be an electric heating wire, a resistance wire, etc.

[0058] In some embodiments of the utility model, the air supply device further comprises a temperature detection member 55, and the temperature detection member 55 is arranged at the first air outlet 511. The temperature detection member 55 is used for detecting the air supply temperature of the first air outlet 511. Specifically, the temperature detection member 55 comprises a temperature sensor 551, and the temperature sensor 551 is arranged at a position close to the first air outlet 511 and is used for detecting the temperature of the airflow flowing out of the first air outlet 511. The number of temperature sensors 551 can be arranged according to actual needs. The cold storage equipment in the embodiment further comprises a controller, a signal input end of the controller is electrically connected with a signal output end of the temperature sensor 551, and a signal output end of the controller is electrically connected with a signal input end of the heating member 52. The temperature sensor 551 detects the temperature of the airflow flowing out of the first air outlet 511 and transmits the detection signal to the controller. The controller controls the start and stop of the heating member 52 according to the detection signal, thereby controlling the temperature of the airflow flowing out of the first air outlet 511.

[0059] In some embodiments of the utility model, drawer 3 includes upper layer sub drawer 31 and lower layer sub drawer 32, be provided with sliding structure 6 between upper layer sub drawer 31 and lower layer sub drawer 32, sliding structure 6 includes the sliding part 61 of being set on upper layer sub drawer 31 and the sliding fit part 62 of being set on lower layer sub drawer 32, sliding part 61 and sliding fit part 62 sliding fit. In this embodiment, one of sliding part 61 and sliding fit part 62 is provided as pulley 611, and the other is provided as sliding groove 621. Specifically, the number of pulley 611 is four, which is respectively arranged at the four corners of the bottom of the upper layer sub drawer 31, and the sliding groove 621 is respectively arranged on the two inner side walls of the lower layer sub drawer 32, the sliding groove 621 extends along the push-pull direction of the drawer 3, and the sliding groove 621 has a certain distance from the upper end surface of the side wall of the lower layer sub drawer 32, which is slightly larger than the outer diameter of the pulley 611, so that when the pulley 611 slides in the sliding groove 621, the upper layer sub drawer 31 and the lower layer sub drawer 32 are sealingly engaged, ensuring that the gap between the upper layer sub drawer 31 and the lower layer sub drawer 32 is as small as possible without affecting the push-pull of the drawer 3, avoiding the high-temperature airflow flowing out of the first air outlet 511 from flowing into the lower layer drawer 3 through the gap between the two drawers 3, affecting the storage temperature of the food in the drawer 3, and ensuring the storage quality. The bottom of the lower layer sub drawer 32 is provided with a sliding rail 7, which facilitates the pulling of the lower layer sub drawer 32.

[0060] In some embodiments of the utility model, the air supply device further comprises an air return port 53, the air return port 53 is arranged at the bottom of the chamber 11, and the air return port 53 communicates with the heat exchange assembly. Specifically, the air return port 53 is arranged on one side close to the back of the lower layer sub drawer 32 and located at the bottom of the chamber 11. When defrosting, the airflow flowing out of the first air outlet 511 flows downward, flows through the outer surface of the drawer 3, and finally flows to the evaporator 41 through the air return port 53 to be cooled. By arranging the air return port 53 close to the bottom of the lower layer drawer 3, it can be ensured that the airflow can flow to the bottom of the lower layer drawer 3 for sufficient defrosting, improving the defrosting effect.

[0061] In some embodiments of the utility model, the side of the drawer 3 facing the door body 2 is provided with a flow guide 54, and the flow guide 54 is used for guiding the airflow flowing out of the first air outlet 511 to the air return port 53. Specifically, the flow guide 54 includes a flow guide baffle 541, and the flow guide baffle 541 is arranged on one side of the front of the lower layer sub drawer 32. When the airflow flowing out of the first air supply area flows downward to the lower layer sub drawer 32, the airflow can be prevented from mixing with the air return airflow of the lower layer sub drawer 32, so that the airflow flows into the air return port 53 through the first area between the outer wall of the drawer 3 and the inner wall of the chamber 11.

[0062] In some embodiments of the utility model, the air supply device further includes a heat insulation layer 56, the heat insulation layer 56 is arranged on the side of the air supply plate body 51 facing the drawer 3. The heat insulation layer 56 includes thermal insulation cotton 561, the thermal insulation cotton 561 is attached to the side of the air supply plate body 51 facing the drawer 3, by arranging the heat insulation layer 56, the heat transfer of the heating element 52 inside the air supply plate body 51 to the inside of the drawer 3 can be reduced.

[0063] The cold storage device 100 of the embodiment can perform defrosting for 30 minutes after the door body 2 is closed, the main reason for the frosting of the interchamber 11 is that a large amount of water vapor in the external environment enters the interchamber 11 to form frost when the door body 2 is opened, the temperature inside the interchamber 11 is low, and the water vapor enters to form frost quickly, therefore, it is suggested that the defrosting process is started after the door body 2 is closed, the defrosting is performed for 30 minutes, and the frost inside the interchamber 11 is reduced; the defrosting process can also be started 30 minutes before the defrosting of the evaporator 41, the frost is transferred to the evaporator 41 as much as possible before defrosting, and the defrosting efficiency is improved; the refrigerator control panel can also be increased with a user self-starting defrosting function, the user needs to defrost the deep cold interchamber 11, the defrosting program is started, the defrosting program is exited when the defrosting is not needed, and the defrosting process can also be started according to the amount of water vapor entering.

[0064] The above is only the preferred specific implementation of the utility model, but the protection scope of the utility model is not limited to this, any person skilled in the art can easily think of changes or replacements in the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model. Therefore, the protection scope of the utility model should be subject to the protection scope of the claims.

Claims

1. A cold storage device, characterized by, The application relates to a cold storage device. The cold storage device comprises a cabinet, a door, a drawer, and an air supply device. The cabinet has a chamber with an opening. The door is arranged at the opening and is used to open or close the chamber. The drawer is arranged in the chamber in a push-pull manner.

2. The cold storage device according to claim 1, characterized by The drawer has a storage space.

3. The cold storage device according to claim 2, characterized by A gap between the drawer and the chamber forms a first area.

4. The cold storage device according to claim 3, characterized by The air supply device is arranged in the chamber.

5. The cold storage device according to claim 3, characterized by The air supply device comprises an air supply plate and a heating element arranged on the air supply plate.

6. The cold storage device according to claim 3, characterized by The air supply plate has a first air supply port and a second air supply port.

7. The cold storage device according to claim 3, characterized by The first air supply port is connected to the first area. The heating element is used to heat air flowing through the first air supply port.

8. The cold storage device according to any one of claims 2 to 7, characterized by, The first air supply port is used to supply air to the first area.

9. The cold storage device according to any one of claims 2 to 7, characterized by, The second air supply port is connected to the storage space and is used to supply air to the storage space.

10. The cold storage device according to claim 9, characterized by The cold storage device further comprises a heat exchange assembly.

11. The cold storage device according to any one of claims 2 to 7, characterized by, The heat exchange assembly has a first air outlet.

12. The cold storage device according to any one of claims 2 to 7, characterized by, The first air outlet is connected to the air supply plate. A first air supply channel is defined on the air supply plate. A first air inlet is arranged on the air supply plate. The two ends of the first air supply channel are connected to the first air inlet and the first air supply port respectively. In the vertical direction, the air supply plate is arranged above the drawer. In the vertical direction, the projection of the drawer on the plane where the air supply plate is located is entirely located in the area of the air supply plate. The first air supply port is located on the side of the air supply plate facing the drawer and is located on the circumferential outer side of the drawer. The number of the first air supply ports is multiple. The multiple first air supply ports are arranged at intervals along the circumference of the drawer. In the horizontal direction, the distance between the first air supply port and the outer edge of the drawer is L1, wherein 4mm<=L1<=7mm. In the vertical direction, the distance between the lower edge of the first air supply port on the side of the air supply plate close to the rear side of the drawer and the lower edge of the first air inlet is L2, wherein 18mm<=L2<=25mm. A second air supply channel is defined on the air supply plate. The two ends of the second air supply channel are connected to the first air inlet and the second air supply port respectively. The second air supply port is located on the side of the air supply plate facing the drawer and is located in the area of the projection. The heating element comprises an electric heating film, a heating wire or a resistance wire. The heating element is arranged in the first air supply channel. The air supply device further comprises an air return port. The air return port is arranged at the bottom of the chamber and is connected to the heat exchange assembly. The drawer is provided with a flow guide on the side facing the door. The flow guide is used to guide the air flow out of the first air supply port to the air return port. The air supply device further comprises a temperature detection element. The temperature detection element is arranged on the first air supply port and is used to detect the air supply temperature of the first air supply port. The air supply device further comprises a heat insulation layer. The heat insulation layer is arranged on the side of the air supply plate facing the drawer.

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