Refrigeration equipment

Abstract

The utility model relates to the technical field of refrigeration equipment, and discloses refrigeration equipment which comprises a box body, a door body used for opening or closing the box body and a drawer arranged in the box body, and a gap between the drawer and the door body forms a first ventilation area used for flowing of gas in the box body; the fan assembly is located in the first ventilation area, and an air outlet of the fan assembly faces the first ventilation area; the fan assembly comprises a heating element used for heating airflow, so that the airflow heated by the heating element is blown out from the air outlet and flows into the first ventilation area, and defrosting is carried out on the surface of the drawer and the inner side wall of the door body which the airflow flows through. The heating element can heat airflow blown out by the fan assembly, and the fan assembly can accelerate flowing air in the first ventilation area, so that the first ventilation area is heated, the outer side of a drawer and the inner side of a door body in the freezing chamber are heated, and the purpose of effectively removing a frost layer of the whole freezing chamber in the refrigeration equipment is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of refrigeration equipment, for example, to a refrigeration equipment. Background Art

[0002] Refrigeration equipment is an electrical device used to store items at low temperatures. Since the freezer compartment of the refrigeration equipment needs to maintain an internal temperature below the room temperature, the surface temperatures of the drawers and door liner of the freezer compartment will become very low. When the door of the refrigeration equipment is opened, the external humid air enters the freezer compartment and first contacts the low-temperature drawer surface and door liner surface, thus easily forming a frost layer on the drawer surface and door liner surface. The frost layer affects the opening and closing of the refrigeration equipment door and also affects the freezing effect inside the refrigeration equipment.

[0003] In the process of implementing the embodiments of the present disclosure, it is found that there are at least the following problems in the related art:

[0004] A heater is arranged in the refrigeration equipment to heat the airflow, but the heater mainly acts directly on the corresponding components or areas. The defrosting and defrosting effect on the area where the heater is located is obvious, but the overall defrosting and defrosting effect is not obvious.

[0005] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present application, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content

[0006] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical components or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

[0007] The embodiment of the present disclosure provides a refrigeration device, which can effectively remove the frost layer of the entire freezing compartment in the refrigeration device.

[0008] In some embodiments, the refrigeration device comprises a box, a door for opening or closing the box, and a drawer disposed in the box, wherein a gap between the drawer and the door forms a first ventilation area for gas flow inside the box; the refrigeration device further comprises:

[0009] A fan assembly is located in the first ventilation area, and an air outlet faces the first ventilation area;

[0010] Among them, the fan assembly includes a heating element for heating the airflow, so that the airflow heated by the heating element is blown out from the air outlet and flows into the first ventilation area, defrosting the drawer surface and the inner wall of the door body through which it flows.

[0011] In some embodiments, the fan assembly is disposed on the inner wall of the door body, or the fan assembly is located on a side of the drawer close to the door body, or the fan assembly is located on the inner wall of the box body exposed to the first ventilation zone.

[0012] In some embodiments, the fan assembly includes a fan and an installation cavity defined by a fan rear cover and a fan front cover, and the fan is disposed in the installation cavity;

[0013] Wherein, when the fan assembly is arranged on the inner side wall of the door body, the fan rear cover is embedded in the inner side wall of the door body.

[0014] In some embodiments, when the fan rear cover is embedded in the inner wall of the door body, the fan front cover abuts against the inner wall surface of the door body.

[0015] In some embodiments, the heating element is disposed on a rear cover of the fan or on a side of a front cover of the fan located on the air inlet side of the fan.

[0016] In some embodiments, the fan front cover has an air outlet, which is inclined from top to bottom from the top of the air outlet to the inner wall of the door body so that the air flow from the air outlet is blown downward to the first ventilation area.

[0017] In some embodiments, the top to bottom of the fan front cover is inclined toward the inner wall of the door body so that the air flow from the air outlet of the fan front cover is blown downward to the first ventilation area.

[0018] In some embodiments, when the air outlet is tilted, the fan is tilted so that the airflow blown by the fan matches the outlet angle of the air outlet.

[0019] In some embodiments, the housing includes an evaporation chamber for placing the evaporator, the first ventilation area is in communication with the evaporation chamber, and the first ventilation area is located at an air inlet side of the evaporation chamber.

[0020] In some embodiments, a gap between the outer bottom of the drawer and the inner bottom of the box body forms a second ventilation area, and the second ventilation area is connected to the first ventilation area so that the airflow of the first ventilation area flows to the second ventilation area.

[0021] The refrigeration equipment provided by the embodiments of the present disclosure can achieve the following technical effects:

[0022] In view of the fact that frost is easily formed on the outside of the drawer and the inside of the door, the refrigeration equipment forms a first ventilation area in the gap between the drawer and the door. The first ventilation area is used for the flow of gas inside the cabinet. At the same time, a fan assembly containing a heating element is arranged in the first ventilation area between the drawer and the door. The heating element can heat the airflow blown out by the fan assembly and the fan assembly can accelerate the air flowing in the first ventilation area, thereby heating the first ventilation area, and then using the heat generated by the heating element to heat the outside of the drawer and the inside of the door, so that the outside of the drawer and the inside of the door can obtain an efficient defrosting effect in a high temperature environment, which helps to remove the frost layer between the drawer and the door. Due to the air flow in the first ventilation area, the heat generated by the heating element is transferred to the drawer and the door, so that the outside of the drawer and the inside of the door are evenly heated, the defrosting effect is improved, and the purpose of effectively removing the frost layer in the entire freezing chamber of the refrigeration equipment is achieved.

[0023] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] One or more embodiments are exemplarily described by corresponding drawings, which do not limit the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements, and the drawings do not constitute a scale limitation, and wherein:

[0025] Figure 1 is a partial cross-sectional schematic diagram of a refrigeration device provided by an embodiment of the present disclosure;

[0026] Figure 2 is a partial cross-sectional schematic diagram of a refrigeration device provided by an embodiment of the present disclosure from another perspective;

[0027] Figure 3 is a partial cross-sectional schematic diagram of a refrigeration device provided by an embodiment of the present disclosure from another perspective;

[0028] Figure 4 is a schematic diagram of the assembly of a door body and a fan assembly provided in an embodiment of the present disclosure;

[0029] Figure 5 is a cross-sectional schematic diagram of a fan assembly provided by an embodiment of the present disclosure;

[0030] Figure 6 It is a schematic diagram of the partial structure of the refrigeration equipment provided in the embodiment of the present disclosure.

[0031] Reference numerals:

[0032] 10: box body; 101: first ventilation area; 102: second ventilation area; 103: evaporation chamber;

[0033] 20: Door; 30: Drawer;

[0034] 40: fan assembly; 401: heating element; 402: fan rear cover; 4021: stopper; 403: fan front cover; 4031: air outlet; 404: fan;

[0035] 50: Fan. DETAILED DESCRIPTION

[0036] In order to be able to understand the features and technical contents of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0037] The terms "first", "second", etc. in the specification and claims of the embodiments of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged where appropriate, so that the embodiments of the embodiments of the present disclosure described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0038] In the embodiments of the present disclosure, the terms "upper", "lower", "inside", "middle", "outside", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are mainly intended to better describe the embodiments of the present disclosure and their embodiments, and are not intended to limit the indicated devices, elements or components to have a specific direction, or to be constructed and operated in a specific direction. Moreover, in addition to being used to indicate directions or positional relationships, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in certain circumstances. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0039] In addition, the terms "disposed", "connected", and "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0040] Unless otherwise stated, the term "plurality" means two or more.

[0041] In the embodiment of the present disclosure, the character " / " indicates that the preceding and following objects are in an "or" relationship. For example, A / B indicates: A or B.

[0042] The term "and / or" is a description of the association relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or, A and B.

[0043] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

[0044] Refrigeration equipment is an electrical device used to store items at low temperatures. Since the internal temperature of the freezer compartment of the refrigeration equipment needs to be maintained below the indoor temperature, especially for cryogenic refrigeration equipment, the temperature maintained by cryogenic refrigeration equipment is usually between -18℃ and -30℃, the surface temperature of the drawers and the door of the freezer compartment will become very low. When the door of the refrigeration equipment is opened, the external humid air enters the freezer compartment and first contacts the low-temperature surface of the drawer and the door, so it is easy to form a frost layer on the drawer and the door. The frost layer not only affects the opening and closing of the door of the refrigeration equipment, but also affects the freezing effect inside the refrigeration equipment.

[0045] Combination Figures 1 to 6 As shown, an embodiment of the present disclosure provides a refrigeration device, including a box body 10, a door body 20 for opening or closing the box body 10, and a drawer 30 arranged in the box body 10, wherein the gap between the drawer 30 and the door body 20 forms a first ventilation area 101 for the flow of gas inside the box body 10; the refrigeration device also includes: a fan assembly 40, which is located in the first ventilation area 101, and the air outlet 4031 faces the first ventilation area 101; wherein the fan assembly 40 includes a heating element 401 for heating the airflow, so that the airflow heated by the heating element 401 is blown out from the air outlet 4031 and flows into the first ventilation area 101, thereby defrosting the surface of the drawer 30 and the inner wall of the door body 20 that flow through.

[0046] The refrigeration device provided by the embodiment of the present invention is used. In view of the situation where frost is easily formed on the outer side of the drawer 30 and the inner side of the door body 20, a first ventilation area 101 is formed in the gap left between the drawer 30 and the door body 20. The first ventilation area 101 is used for the flow of gas inside the box body 10. At the same time, a fan assembly 40 containing a heating element 401 is arranged in the first ventilation area 101 between the drawer 30 and the door body 20. The heating element 401 can heat the airflow blown out by the fan assembly 40 and the fan assembly 40 can accelerate the air flowing in the first ventilation area 101, thereby heating the first ventilation area 101, and then using the heat generated by the heating element 401 to heat the outer side of the drawer 30 and the inner side of the door body 20, so that the outer side of the drawer 30 and the inner side of the door body 20 can obtain an efficient defrosting effect in a high temperature environment, which is helpful to remove the frost layer between the drawer 30 and the door body 20. Due to the air flow in the first ventilation area 101, the heat generated by the heating element 401 is transferred to the drawer 30 and the door body 20, so that the outer side of the drawer 30 and the inner side of the door body 20 are evenly heated, the defrosting effect is improved, and the purpose of effectively removing the frost layer in the freezer compartment of the refrigeration equipment is achieved.

[0047] The refrigeration device provided in this embodiment includes a box body 10, a door body 20 and a drawer 30, wherein one side of the box body 10 is open, the door body 20 is located on the open side of the box body 10, the door body 20 can be used to open or close the box body 10, and a drawer 30 for storing items is arranged inside the box body 10, and the outer side of the drawer 30 faces the inner side of the door body 20. It can be understood that in the case where frost is easy to form between the outer side of the drawer 30 and the inner side of the door body 20, a fan assembly 40 containing a heating element 401 is arranged between the outer side of the drawer 30 and the inner side of the door body 20, and a gap is left between the outer side of the drawer 30 and the inner side of the door body 20, and the gap forms a first ventilation area 101, and the air inside the box body 10 can flow in the first ventilation area, so that the heat generated by the heating element 401 during operation can heat the nearby door body 20 and drawer 30, so as to not only remove the frost layer attached to the surface of the door body 20 and the surface of the drawer 30.

[0048] In addition, a gap is left between the outside of the drawer 30 and the inside of the door body 20, and the gap is the first ventilation area 101 for the air flow inside the box body 10. Therefore, under the action of the fan 404, the heat generated by the heating element 401 is accelerated to transfer to other areas, that is, the flow speed of the heated airflow in the first ventilation area 101 is accelerated, and the first ventilation area 101 is heated, so that the first ventilation area 101, that is, the outside of the drawer 30 and the inside of the door body 20 are heated evenly. At the same time, the gas flow helps the hot air to exchange heat with the frost layer, accelerates the defrosting efficiency, and improves the defrosting effect.

[0049] It should be noted that an evaporator and a fan 50 are provided in the refrigeration device housing 10. The fan 50 can transport the air inside the housing 10 to the evaporator for cooling, and blow the cold air generated by the evaporator into the housing 10. When the door 20 and the drawer 30 do not need to be defrosted and the refrigeration device is in the refrigeration process, cold air can be transported between the drawer 30 and the door 20 through the first ventilation area 101, so that the ambient temperature around the drawer 30 is reduced, which is conducive to maintaining a low temperature environment for the items stored in the drawer 30. When the door body 20 and the drawer 30 need to be defrosted, the heating element 401 generates heat, and the fan 404 blows the heat out to the first ventilation area 101, heats the cold air in the first ventilation area 101, forms hot air, and thereby reduces the impact of delivering cold air to the first ventilation area 101 when the evaporator is cooling; therefore, the first ventilation area 101 can provide an air duct for the flow of cold air to lower the ambient temperature of the drawer 30 when the drawer 30 is cooling, and can also provide an air duct for the flow of hot air to increase the ambient temperature of the drawer 30 when the drawer 30 is defrosting. There is no need to set up additional air ducts, evaporators and fans 50. Only the heating element 401 and the fan 404 are added between the inner side of the door body 20 and the outer side of the drawer 30 for local defrosting, and the first ventilation area 101 is shared to improve heat transfer and improve defrosting efficiency, which has the advantage of simple structure.

[0050] Optionally, the fan assembly 40 is disposed on the inner wall of the door body 20 , or the fan assembly 40 is located on a side of the drawer 30 close to the door body 20 , or the fan assembly 40 is located on the inner wall of the box body 10 exposed to the first ventilation zone 101 .

[0051] Reference Figures 1 to 4 , Figures 1 to 4 : This is a structural schematic diagram of the fan assembly 40 provided in this embodiment being located on the inner wall of the door body 20. The fan assembly 40 can be arranged on the inner wall of the door body 20, and the heat generated by the heating element 401 in the fan assembly 40 can directly act on the surface of the door body 20, accelerating the melting of the frost layer on the inner side of the door body 20, and preventing the door body 20 from being unable to be opened after being frosted, which affects the use of the user. At the same time, after the heating element 401 raises the surface temperature of the door body 20, it can prevent the sealing strip of the door body 20 from being stiffened due to too low temperature and affecting the sealing performance. In addition, the panel on the surface of the door body 20 is larger than the area of ​​the outer surface of the drawer 30, which is helpful for arranging the fan assembly 40. At the same time, the heating area of ​​the heating element 401 can be increased, the heating rate of the first ventilation zone 101 can be accelerated, and the defrosting rate can be improved. The heat generated by the heating element 401 is blown out under the action of the fan and acts on the surface of the drawer 30, thereby accelerating the melting of the frost layer on the outer side of the drawer 30. The hot air flow heats the surface temperature of the drawer 30 and the door body 20 at the same time, preventing the surface of the drawer 30 and the surface of the door body 20 from freezing, and preventing the frost layer from blocking the channel for obtaining cold air in the drawer 30.

[0052] It can be understood that the heat generated by the heating element 401 located outside the drawer 30 is transferred to the nearby surface of the door body 20 by radiation and airflow, so that the temperature of the nearby surface of the door body 20 increases and the frost layer on the surface of the door body 20 is removed.

[0053] Similarly, when the fan assembly 40 is located on the inner wall of the box 10 exposed to the first ventilation zone 101, the heat generated by the heating element 401 is conducted to the nearby surfaces of the door body 20 and the drawer 30 by radiation and airflow, so that the temperature of the nearby surfaces of the door body 20 and the drawer 30 increases, thereby removing the frost layer on the surfaces of the door body 20 and the drawer 30.

[0054] In addition, after the refrigeration equipment installs the fan assembly 40 on the inner wall of the door body 20, a heater can also be set on the outside of the drawer 30 close to the door body 20, thereby increasing the direct action range of the heater, accelerating the heating rate of both the surface of the door body 20 and the outer surface of the drawer 30, and improving the defrosting efficiency.

[0055] It should be noted that the power of the heating element 401 can be adjusted according to the area required to be heated by the heating element 401. For example, when the heating element 401 is arranged on the outside of the drawer 30 with a smaller heating area, it can be operated at a low power; and when the heating element 401 is arranged on the inside of the door body 20 with a larger heating area, it can be operated at a high power.

[0056] It can be understood that in order to reduce the impact of the heat generated by the heating element 401 on the internal temperature of the drawer 30, an insulation layer is provided on the inner side of the drawer 30. The insulation layer can isolate the heat generated by the heating element 401 while isolating the cold diffused inside the drawer 30, thereby reducing the heating rate inside the drawer 30 and helping to maintain the inside of the drawer 30 at a low temperature.

[0057] It should be noted that when the heating element 401 is arranged on the outside of the drawer 30, the insulation layer can be set according to the position of the heating element 401, and the insulation layer is arranged on the inside of the drawer 30 and close to the door body 20, that is, close to the heating element 401, so that the insulation layer can effectively isolate the heat transferred by the heating element 401 through the outer surface of the drawer 30.

[0058] Optionally, the fan assembly 40 includes a fan 404 and an installation cavity enclosed by a fan rear cover 402 and a fan front cover 403, and the fan 404 is disposed in the installation cavity; wherein, when the fan assembly 40 is disposed on the inner wall of the door body 20, the fan rear cover 402 is embedded in the inner wall of the door body 20.

[0059] The fan rear cover 402 and the fan front cover 403 are detachably connected, which is not only convenient for installing the fan 404, but also helpful for later maintenance. The fan 404 is arranged in the installation cavity and is detachably connected to the fan front cover 403. In the case where the fan assembly 40 is arranged on the inner side wall of the door body 20, the fan rear cover 402 is embedded in the inner side wall of the door body 20, which helps to improve the stability of the installation of the fan rear cover 402.

[0060] For example, the inner wall of the door body 20 is configured with a mounting opening, and the edge of the fan rear cover 402 forms a T-shaped stopper 4021, and the T-shaped stopper 4021 is extended into the mounting opening, and the periphery abuts against the edge of the mounting opening, thereby preventing the fan rear cover 402 from falling out of the mounting opening. In actual applications, the fan rear cover 402 can also be connected to the door body 20 by fasteners, which can further improve the stability and firmness of the connection between the two.

[0061] It should be noted that the air intake of the fan assembly 40 may come from a vent opened on the inner wall of the door body 20 and connected to the first ventilation area 101. Alternatively, the fan rear cover 402 is provided with an air intake, which is connected to the circulating air duct in the refrigerator.

[0062] Optionally, when the fan rear cover 402 is embedded in the inner wall of the door body 20 , the fan front cover 403 abuts against the inner wall surface of the door body 20 .

[0063] When the fan rear cover 402 is embedded in the inner wall of the door body 20, the fan front cover 403 is detachably connected to the fan rear cover 402, and the fan front cover 403 is exposed in the first ventilation area 101, and the end connected to the fan rear cover 402 abuts against the inner wall surface of the door body 20, which is not only convenient for later disassembly and maintenance.

[0064] Optionally, the heating element 401 is disposed on the fan rear cover 402 or on a side of the fan front cover 403 located on the air inlet side of the fan 404 .

[0065] The heating element 401 may be a heating wire and / or a heating plate. The heating element 401 is disposed on the fan rear cover 402 or on the side of the fan front cover 403 located on the air inlet side of the fan 404. When the heating element 401 and the fan 404 are working, the airflow on the air inlet side of the fan 404 first flows through the heating element 401. Under the action of the heating element 401, the temperature rises. In the process of being blown out by the fan 404, air of different temperatures mixes, which helps to improve the temperature uniformity of the airflow blown out from the fan 404.

[0066] Optionally, the fan front cover 403 has an air outlet 4031 , which is inclined from top to bottom toward the inner wall of the door body 20 so that the air flow from the air outlet 4031 is blown downward to the first ventilation area 101 .

[0067] The air outlet 4031 is tilted downward, so that the flow direction of the airflow blown out from the air outlet 4031 is also tilted downward. In this way, it matches the flow direction of the cold air flowing in the first ventilation area 101, avoiding increasing the wind resistance of the cold air in the first ventilation area 101. In addition, the flow direction of the airflow blown out from the air outlet 4031 matches the flow direction of the cold air in the first ventilation area 101, so that the airflow blown out from the air outlet 4031 can flow to other areas of the first ventilation area 101 as quickly as possible under the action of the cold air, thereby improving the defrosting efficiency.

[0068] In addition, the air outlet 4031 is tilted downward, which can also prevent the outlet air flow from blowing directly onto the corresponding drawer 30. The hot air flow acts on the corresponding drawer 30 and radiates outward through the drawer 30, which can easily affect the smoothness of the subsequent air flow, thus forming a certain wind resistance, thereby affecting the air volume of the air outlet 4031, and further affecting the defrosting effect of the refrigeration equipment.

[0069] Optionally, the top to the bottom of the fan front cover 403 is inclined toward the inner wall of the door body 20 so that the air flow from the air outlet 4031 of the fan front cover 403 is blown downward to the first ventilation area 101 .

[0070] The fan front cover 403 is tilted downward, which not only makes the air outlet 4031 tilted downward, but also prevents the cold air in the first ventilation area 101 from pouring into the installation cavity from the top of the air outlet 4031, that is, it can be understood that the top of the fan front cover 403 plays a role in blocking the cold air. In this way, the air volume of the fan assembly 40 can be guaranteed, thereby ensuring the heat exchange effect between the hot air blown out from the air outlet 4031 and the surface of the door body 20 and the surface of the drawer 30 of the first ventilation area 101, thereby ensuring the defrosting effect on the surface of the door body 20 and the surface of the drawer 30 of the refrigeration equipment.

[0071] Optionally, when the air outlet 4031 is tilted, the fan 404 is tilted so that the airflow blown by the fan matches the outlet angle of the air outlet 4031 .

[0072] When the air outlet 4031 is tilted downward, the fan 404 is tilted and the tilt angle matches the air outlet angle of the air outlet 4031. This not only ensures the uniformity of the air flow from the air outlet 4031, but also avoids the wind resistance problem caused by the mismatch between the air outlet 4031 and the air outlet area of ​​the fan 404 due to the tilt of the air outlet 4031.

[0073] Optionally, the housing 10 includes an evaporation chamber 103 for placing an evaporator, and the first ventilation area 101 is in communication with the evaporation chamber 103 and is located at an air inlet side of the evaporation chamber 103 .

[0074] The evaporation chamber 103 is located at the bottom of the box 10. An evaporator is placed in the evaporation chamber 103. A cooling air outlet is opened on the side of the evaporation chamber 103. The first ventilation area 101 is connected to the evaporation chamber 103 through the cooling air outlet. The first ventilation area 101, the evaporation chamber 103 and the cooling air duct of the box 10 form a circulation air duct.

[0075] When the evaporator is in a cooling state, the fan 50 blows the cold air at the evaporator to the cooling air duct of the box 10 through the cooling air outlet, and the cooling air duct delivers cold air to the drawer 30 for cooling. At the same time, the cooling air duct also delivers cold air to the first ventilation area 101. When it is necessary to defrost the outside of the drawer 30 and the inside of the door body 20, the heating element 401 and the fan 404 work. The heat generated by the heating element 401 can heat the cold air delivered to the first ventilation area 101 into hot air under the action of the fan, thereby accelerating the defrosting efficiency of the first ventilation area 101. The heated air is cooled down after heat exchange with the frost layer in the first ventilation area 101, and flows into the evaporation chamber 103. After the air enters the evaporation chamber 103, the air temperature is further reduced and becomes cold air after heat exchange with the evaporator. Therefore, when the fan 50 blows air to the cooling air duct, the air temperature is low, and the low temperature environment inside the drawer 30 can be maintained. Therefore, the low temperature storage environment inside the drawer 30 can be maintained during the process of defrosting the outside of the drawer 30 and the inside of the door body 20.

[0076] In addition, when the evaporator is in the heating state and the heating element 401 is working, the evaporator and the heating element 401 heat the circulating air duct at the same time, thereby improving the defrosting efficiency of the inner side of the door body 20, the inner side of the drawer 30 and the evaporator.

[0077] Optionally, a gap between the outer bottom of the drawer 30 and the inner bottom of the box body 10 forms a second ventilation area 102 , and the second ventilation area 102 is connected to the first ventilation area 101 so that the airflow of the first ventilation area 101 flows to the second ventilation area 102 .

[0078] It should be noted that, in the box body 10 of this embodiment, a plurality of drawers 30 are arranged in the box body 10, and the drawer 30 in the second ventilation zone 102 formed by the gap between the outer bottom of the drawer 30 and the inner bottom of the box body 10 is the drawer 30 located at the bottom.

[0079] In actual application, during the defrosting process, the defrosting water flows to the inner bottom of the box body 10 and is discharged, but it is inevitable that part of the defrosting water remains at the inner bottom of the box body 10, that is, it can be understood that the defrosting water remains in the gap between the outer bottom of the drawer 30 and the inner bottom of the box body 10, which is easy to form a frost layer or ice. By connecting the first ventilation area 101 with the second ventilation area 102, when the heating element 401 is working, part of the hot air flowing in the first ventilation area 101 flows to the second ventilation area 102. In the case of a frost layer or ice, the hot air flows through the frost layer or ice layer for heat exchange, thereby achieving defrosting and defrosting of the second ventilation area 102, thereby ensuring smooth pulling and pulling of the drawer 30 at the bottom.

[0080] The above description and the accompanying drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Unless explicitly required, individual components and functions are optional, and the order of operations may vary. Portions and features of some embodiments may be included in or replace portions and features of other embodiments. The embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A refrigeration device, comprising a box, a door for opening or closing the box, and a drawer arranged in the box, wherein the gap between the drawer and the door forms a first ventilation area for gas flow inside the box; characterized in that: Also includes: A fan assembly is located in the first ventilation area, and an air outlet faces the first ventilation area; Among them, the fan assembly includes a heating element for heating the airflow, so that the airflow heated by the heating element is blown out from the air outlet and flows into the first ventilation area, defrosting the drawer surface and the inner wall of the door body through which it flows.

2. The refrigeration equipment according to claim 1, characterized in that: The fan assembly is arranged on the inner side wall of the door body, or the fan assembly is located on the side of the drawer close to the door body, or the fan assembly is located on the inner side wall of the box body exposed to the first ventilation zone.

3. The refrigeration equipment according to claim 1, characterized in that: The fan assembly includes a fan and an installation cavity defined by a fan rear cover and a fan front cover, and the fan is arranged in the installation cavity; Wherein, when the fan assembly is arranged on the inner side wall of the door body, the fan rear cover is embedded in the inner side wall of the door body.

4. The refrigeration equipment according to claim 3, characterized in that: When the fan rear cover is embedded in the inner wall of the door body, the fan front cover abuts against the inner wall surface of the door body.

5. The refrigeration equipment according to claim 3, characterized in that: The heating element is arranged on the rear cover of the fan or on one side of the front cover of the fan at the air inlet side of the fan.

6. The refrigeration equipment according to claim 3, characterized in that: The fan front cover has an air outlet, which is inclined from top to bottom from the top of the air outlet to the inner wall of the door body, so that the air flow from the air outlet is blown downward to the first ventilation area.

7. The refrigeration equipment according to claim 3, characterized in that: From top to bottom, the top to bottom of the fan front cover is inclined toward the inner wall of the door body, so that the air flow from the air outlet of the fan front cover is blown downward to the first ventilation area.

8. The refrigeration equipment according to claim 3, characterized in that: When the air outlet of the fan front cover is tilted, the fan is tilted so that the airflow blown by the fan matches the air outlet angle of the air outlet.

9. The refrigeration device according to any one of claims 1 to 8, characterized in that: The box body comprises an evaporation chamber for placing the evaporator, the first ventilation area is communicated with the evaporation chamber and the first ventilation area is located at the air inlet side of the evaporation chamber.

10. The refrigeration device according to any one of claims 1 to 8, characterized in that: The gap between the outer bottom of the drawer and the inner bottom of the box body forms a second ventilation area, and the second ventilation area is connected with the first ventilation area so that the airflow of the first ventilation area flows to the second ventilation area.

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