CN219841693U - Refrigerating apparatus - Google Patents

Abstract

The utility model discloses refrigeration equipment, which comprises a box body, a door body for opening or closing the box body and a drawer arranged in the box body, wherein the door body is provided with a door body; the gap between the drawer and the door body forms a first area for the gas in the box body to flow, and a heater for heating the first area is arranged between the outer side of the drawer and the inner side of the door body. The refrigerating equipment provided by the embodiment of the utility model can heat the outer side of the drawer and the inner side of the door body by utilizing the heat generated by the heater, so that the outer side of the drawer and the inner side of the door body can obtain an efficient defrosting effect in a high-temperature environment, and the defrosting equipment is beneficial to removing a frost layer between the drawer and the door body. Because the air in the first area flows, the heat generated by the heater is transferred to the drawer and the door body, so that the outer side of the drawer and the inner side of the door body are heated uniformly, and the defrosting effect is improved.

Description

Refrigerating apparatus

Technical Field

The utility model relates to the technical field of refrigeration equipment, in particular to refrigeration equipment.

Background

A refrigerating apparatus is an electric apparatus for storing articles at a low temperature, and since a refrigerating compartment of the refrigerating apparatus needs to maintain an internal temperature within a range lower than an indoor temperature, surface temperatures of both a drawer and a door liner of the refrigerating compartment become very low. When the cabinet door of the refrigeration equipment is opened, the external moist air enters the refrigeration compartment and is firstly contacted with the low-temperature drawer surface and the surface of the door liner, so that a frost layer is easily formed on the drawer surface and the surface of the door liner, the frost layer influences the opening and closing of the cabinet door of the refrigeration equipment, and meanwhile, the refrigeration effect inside the refrigeration equipment is influenced. Therefore, how to effectively remove frost in a refrigeration apparatus is a problem to be solved.

Disclosure of Invention

The utility model aims to at least solve one of the technical problems in the prior art, and provides refrigeration equipment capable of effectively removing frost layers in the refrigeration equipment.

In a first aspect, an embodiment of the present utility model provides a refrigeration apparatus, including a cabinet, a door for opening or closing the cabinet, and a drawer disposed in the cabinet; the gap between the drawer and the door body forms a first area for the gas in the box body to flow, and a heater for heating the first area is arranged between the outer side of the drawer and the inner side of the door body.

The refrigeration equipment provided by the embodiment of the utility model has at least the following beneficial effects: the device is characterized in that a first area is formed in a gap reserved between the drawer and the door body, gas in the first area flows through the gap reserved between the drawer and the door body, a heater is arranged between the drawer and the door body, and the heater can heat the first area, so that the heat generated by the heater can be utilized to heat the outer side of the drawer and the inner side of the door body, the outer side of the drawer and the inner side of the door body can obtain an efficient defrosting effect in a high-temperature environment, and the device is favorable for removing the frost layer between the drawer and the door body. Because the air in the first area flows, the heat generated by the heater is transferred to the drawer and the door body, so that the outer side of the drawer and the inner side of the door body are heated uniformly, and the defrosting effect is improved.

In the refrigeration equipment provided by the embodiment of the utility model, the heater is positioned at one side of the drawer close to the door body and/or at the inner side of the door body.

According to the refrigeration equipment provided by the embodiment of the utility model, the box body comprises a cavity structure for placing the evaporator and the fan, the cavity structure is opposite to the door body, a refrigeration air outlet for supplying air to the drawer is arranged at the top of the cavity structure, a first air channel is formed by a gap between the top of the drawer and the top of the inner side of the box body, a second air channel is formed by a gap between the bottom of the outer side of the drawer and the bottom of the inner side of the box body, and the first air channel, the second air channel, the first area and the cavity structure are communicated to form a circulating air channel, wherein the first air channel is communicated with the cavity structure through the refrigeration air outlet.

In the refrigeration equipment provided by the embodiment of the utility model, the box body comprises at least two drawers which are stacked up and down, the cavity structure is provided with a refrigeration air outlet for supplying air to the drawers for refrigeration, the refrigeration air outlet is positioned between two adjacent drawers, and the refrigeration air outlet is provided with a first air door for enabling the refrigeration air outlet to be in an open state or a closed state.

In the refrigeration equipment provided by the embodiment of the utility model, the second air channel is internally provided with the first partition board, and the first partition board separates the second air channel to form a freezing air channel close to the drawer and a defrosting air channel close to the box body; a second air door is arranged between the bottom of the drawer and the bottom of the box body, and the second air door is used for enabling the first area to be communicated with the cavity structure through the freezing air duct or enabling the first area to be communicated with the cavity structure through the defrosting air duct.

In the refrigeration device provided by the embodiment of the utility model, the second air door is positioned at one end of the first partition board close to the cavity structure.

In the refrigeration equipment provided by the embodiment of the utility model, the bottom of the inner side of the box body is provided with the defrosting drain outlet communicated with the drain pipe.

In the refrigeration equipment provided by the embodiment of the utility model, the defrosting water outlet comprises an evaporation water outlet and a return water outlet, wherein the evaporation water outlet is communicated with the cavity structure, and the return water outlet is communicated with the second air duct.

In the refrigeration equipment provided by the embodiment of the utility model, a drainage structure extending obliquely downwards to the return air outlet is arranged at the joint of the second air duct and the first area.

In the refrigeration equipment provided by the embodiment of the utility model, the inner side of the drawer is provided with the heat preservation layer.

Additional features and advantages of the utility model will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model. The objectives and other advantages of the utility model will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate and do not limit the utility model.

The utility model is further described below with reference to the drawings and examples;

fig. 1 is a schematic structural diagram of a refrigeration device according to an embodiment of the present utility model;

FIG. 2 is a schematic view of a heater according to an embodiment of the present utility model;

FIG. 3 is a schematic view of a heater according to an embodiment of the present utility model;

fig. 4 is a schematic structural view of a refrigeration apparatus according to another embodiment of the present utility model;

fig. 5 is a schematic diagram of a refrigeration apparatus according to an embodiment of the present utility model in a refrigeration state;

fig. 6 is a schematic diagram of a refrigeration apparatus according to an embodiment of the present utility model in a defrost state.

Detailed Description

Reference will now be made in detail to the present embodiments of the present utility model, examples of which are illustrated in the accompanying drawings, wherein the accompanying drawings are used to supplement the description of the written description so that one can intuitively and intuitively understand each technical feature and overall technical scheme of the present utility model, but not to limit the scope of the present utility model.

In the description of the present utility model, the meaning of several is one or more, the meaning of several is two or more, greater than, less than, exceeding, etc. are understood to exclude the present number, the meaning of above, below, within, etc. is understood to include the present number, "at least one" means one or more, "at least one item below" and the like, means any combination of these items, including any combination of single items or plural items. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

It should be noted that, in the embodiments of the present utility model, terms such as setting, installing, connecting and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meaning of the foregoing terms in the embodiments of the present utility model in combination with the specific content of the technical solution. For example, the term "coupled" may be a mechanical connection, an electrical connection, or may be in communication with one another; can be directly connected or indirectly connected through an intermediate medium.

The technical features of the embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.

In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.

A refrigeration device is an electrical device for storing articles at low temperature, since the freezing compartment of the refrigeration device needs to maintain the internal temperature within a range below the indoor temperature, especially a cryogenic refrigeration device, which typically maintains a temperature between-18 ℃ and-30 ℃, the surface temperature of both the drawers and the door liners of the freezing compartment can thus become very low. When the cabinet door of the refrigeration equipment is opened, the outside moist air enters the refrigeration compartment to be contacted with the low-temperature drawer surface and the surface of the door liner at first, so that a frost layer is easily formed on the drawer surface and the surface of the door liner, and the frost layer not only affects the opening and closing of the cabinet door of the refrigeration equipment, but also affects the refrigeration effect inside the refrigeration equipment. Therefore, how to effectively remove frost in a freezing compartment is a problem to be solved.

Based on the above, the utility model provides the refrigeration equipment, which aims at the condition that the outer side of the drawer and the inner side of the door body are easy to form a frost layer, a gap left between the drawer and the door body forms a first area, the first area is used for the gas in the box body to flow, meanwhile, a heater is arranged between the drawer and the door body, and the heater can heat the first area, so that the heat generated by the heater can be used for heating the outer side of the drawer and the inner side of the door body, the outer side of the drawer and the inner side of the door body can obtain an efficient defrosting effect in a high-temperature environment, and the frost layer between the drawer and the door body can be removed. Because the air in the first area flows, the heat generated by the heater is transferred to the drawer and the door body, the outer side of the drawer and the inner side of the door body are heated uniformly, the defrosting effect is improved, and the purpose of effectively removing the frost layer of the freezing compartment in the refrigeration equipment is achieved.

Embodiments of the present utility model will be further described below with reference to the accompanying drawings.

Referring to fig. 1, fig. 1 shows a refrigeration apparatus 100 according to an embodiment of the present utility model, where the refrigeration apparatus 100 includes a case 110, a door 130, and a drawer 120, and the case 110 is opened at one side, the door 130 is located at one side of the opening of the case 110, the door 130 can be used to open or close the case 110, and the drawer 120 for storing objects is disposed inside the case 110, and the outside of the drawer 120 faces the inside of the door 130. It will be appreciated that, in case that frost is easily formed between the outside of the drawer 120 and the inside of the door 130, the heater 140 is disposed between the outside of the drawer 120 and the inside of the door 130, and a gap is left between the outside of the drawer 120 and the inside of the door 130, and the gap forms the first region 230, and the gas inside the cabinet 110 may flow in the first region 230, so that the heat generated by the heater 140 may heat the door 130 and the drawer 120 nearby during operation, thereby removing the frost layer adhered to the surface of the door 130 and the surface of the drawer 120. In addition, a gap is left between the outside of the drawer 120 and the inside of the door 130, and the gap is a first area 230 for the air flow inside the case 110, so that the heat generated by the heater 140 is diffused under the action of the air flow in the first area 230, thereby heating the first area 230, so that the outside of the drawer 120 and the inside of the door 130 in the first area 230 are heated uniformly, and the air flow is helpful for heat exchange between the hot air and the frost layer, thereby accelerating defrosting efficiency and improving defrosting effect.

It should be noted that, the evaporator 151 and the fan 152 are disposed in the case 110 of the refrigeration apparatus 100, and the fan 152 can convey air inside the case 110 to the evaporator 151 for cooling, and blow cold air generated by the evaporator 151 to the inside of the case 110. In the process that the door 130 and the drawer 120 do not need to be defrosted and the refrigeration device 100 is used for refrigerating, cold air can be conveyed between the drawer 120 and the door 130 through the first area 230, so that the temperature of the surrounding environment of the drawer 120 is reduced, and the low-temperature environment of articles stored in the drawer 120 is maintained. In the case that the door 130 and the drawer 120 need to be defrosted, the heater 140 works to generate heat to heat the cold air delivered to the first area 230 to form hot air, so as to reduce the influence of delivering the cold air to the first area 230 when the evaporator 151 is refrigerating; therefore, the first area 230 can provide a cold air flowing air channel to reduce the environmental temperature of the drawer 120 when the drawer 120 is refrigerating, and also can provide a hot air flowing air channel to increase the environmental temperature of the drawer 120 when the drawer 120 is defrosting, without providing an additional air channel, an evaporator 151 and a fan 152, only the heater 140 is additionally arranged between the inner side of the door 130 and the outer side of the drawer 120 to locally defrost, and the first area 230 is shared to improve heat transfer and improve defrosting efficiency, so that the refrigerator has the advantage of simple structure. Referring to fig. 2, fig. 2 is a schematic view illustrating a structure in which a heater 140 is located outside a drawer 120 according to an embodiment of the present utility model. It can be appreciated that the heater 140 may be disposed at an outer side of the drawer 120, that is, the heater 140 is located at a side of the drawer 120 close to the door 130, so that heat generated by the heater 140 may directly act on a surface of the drawer 120, and may accelerate melting of a frost layer at an outer side of the drawer 120, and heat a surface temperature of the drawer 120, so as to prevent the surface of the drawer 120 from freezing, and prevent the frost layer from blocking a channel for obtaining cold air in the drawer 120. The heat generated by the heater 140 outside the drawer 120 is conducted to the surface of the door 130 nearby by radiation and air flow, so that the temperature of the surface of the door 130 nearby is raised, and the frost layer on the surface of the door 130 is removed. Because the surface area of the drawer 120 is smaller than the surface area of the door 130, the heat is less likely to be dispersed, and the heating rate of the first region 230 can be increased, thereby improving the defrosting efficiency. Meanwhile, due to the limitation of the heat radiation direction, even if the air flows in the first region 230, the heater 140 is arranged at the side of the drawer 120 facing the door 130, which is difficult to conduct heat to the inside of the whole box 110, and is difficult to significantly influence the temperature of the environment inside the box 110 of the refrigeration equipment 100, so that the refrigeration equipment 100 is not required to increase the cold output in order to maintain the low temperature environment inside the box 110, and the energy is saved.

Referring to fig. 3, fig. 3 is a schematic view illustrating a structure of a heater 140 positioned inside a door 130 according to an embodiment of the present utility model. It can be appreciated that the heater 140 may be disposed inside the door 130, so that the heater 140 may accelerate melting of a frost layer inside the door 130, prevent the door 130 from being unable to be opened after frosting, and affect the use of a user, and meanwhile, after the surface temperature of the door 130 is raised by the heater 140, prevent the sealing strip of the door 130 from being too low and stiff, and affect the sealing performance. In addition, the surface area of the door 130 is larger than that of the outer surface of the drawer 120, which is conducive to disposing the heater 140, and at the same time, the heating area of the heater 140 can be increased, the heating rate of the first region 230 can be increased, and the defrosting efficiency can be improved.

In addition, the heater 140 may be provided in plurality, and is located at the outer side of the drawer 120 and the inner side of the door body 130, respectively, so that a region where the heater 140 directly acts can be increased, a temperature rising rate of both the surface of the door body 130 and the outer side surface of the drawer 120 can be accelerated, and defrosting efficiency can be improved.

It should be noted that, the power of the heater 140 may be adjusted according to the area required to be heated by the heater 140, for example, when the heater 140 is disposed outside the drawer 120 with a smaller heating area, a low power operation may be used; and when the heater 140 is disposed inside the door 130 having a large heating area, a high power operation may be used.

It can be appreciated that, in order to reduce the influence of the heat generated by the heater 140 on the internal temperature of the drawer 120, the heat-insulating layer 220 is disposed on the inner side of the drawer 120, and the heat-insulating layer 220 can insulate the heat generated by the heater 140 and the cold energy diffused in the drawer 120, so as to reduce the temperature rising rate in the drawer 120 and help the drawer 120 maintain in a low-temperature state. It should be noted that, the heat-insulating layer 220 may be disposed at a position corresponding to the heater 140, and the heat-insulating layer 220 is disposed at an inner side of the drawer 120 and near a side of the door 130, that is, near a side of the heater 140, so that the heat-insulating layer 220 can effectively insulate heat transferred from the heater 140 through an outer surface of the drawer 120.

Referring to fig. 4, fig. 4 is a schematic structural diagram of a refrigeration apparatus 100 according to another embodiment of the present utility model. It can be understood that the box 110 is provided with a cavity structure 150, the door 130 is opposite to the cavity structure 150, that is, the drawer 120 is located between the door 130 and the cavity structure 150, the cavity structure 150 is provided with an evaporator 151 and a fan 152, the top of the cavity structure 150 is further provided with a refrigeration air outlet 154, and the refrigeration air outlet 154 faces the top opening of the drawer 120, so that cold air in the cavity structure 150 can be conveyed to the interior of the drawer 120 to supply air to cool the drawer 120. A gap is left between the top of the box 110 and the top of the drawer 120, and the gap forms a first air duct 240 for communicating the cavity structure 150 with the first area 230, an air inlet end of the first air duct 240 is communicated with the refrigeration air outlet 154 of the cavity structure 150, and an air supply end of the first air duct 240 is communicated with the top of the first area 230. A gap is also left between the bottom of the case 110 and the bottom of the drawer 120, and the gap forms a second air duct 250 for communicating the bottom of the cavity structure 150 with the bottom of the first area 230, so that the cavity structure 150, the first air duct 240, the first area 230 and the second air duct 250 are sequentially communicated, and the fan 152 in the cavity structure 150 supplies air to the first area 230 through the cooling air outlet 154 and the first air duct 240, and the air flows into the second air duct 250 after passing through the first area 230 and returns into the cavity structure 150 through the second air duct 250 to form a circulation air duct.

Since the evaporator 151 is located in the cavity structure 150 and the heater 140 is located in the first region 230, the fan 152 blows cool air at the evaporator 151 to the first air duct 240 through the cooling air outlet 154 when the evaporator 151 is in a cooling state. The first air duct 240 may communicate with the outside of the first area 230 and may also communicate with the inside of the drawer 120, so that the fan 152 may transmit cool air to the inside of the drawer 120 through the first air duct 240 to perform cooling, and simultaneously transmit cool air to the first area 230 through the first air duct 240. When the outside of the drawer 120 and the inside of the door 130 need to be defrosted, the heater 140 works, and the heat generated by the heater 140 can heat the cold air delivered to the first area 230 into hot air, so that the defrosting efficiency of the first area 230 is quickened. The temperature of the heated air is reduced after heat exchange with the frost layer in the first area 230, and the heated air flows into the cavity structure 150 through the second air duct 250, and the temperature of the cooled air is difficult to influence the internal temperature of the drawer 120 through the second air duct 250, meanwhile, after the air entering the cavity structure 150 exchanges heat through the evaporator 151, the temperature of the air is further reduced, and the air becomes cold air, so that when the fan 152 blows air to the first air duct 240, the temperature of the air is low, and the low-temperature environment inside the drawer 120 can be maintained. Accordingly, a low temperature storage environment inside the drawer 120 can be maintained during defrosting of the outside of the drawer 120 and the inside of the door 130. In addition, when the evaporator 151 is in a heating state and the heater 140 is operated, the evaporator 151 and the heater 140 heat the circulation duct at the same time, and defrosting efficiency of the inside of the door 130, the inside of the drawer 120, and the evaporator 151 is improved.

It should be noted that, in the case where the case 110 has a plurality of drawers 120 inside, the first air duct 240 is a gap between the top of the drawer 120 near the top of the inner side of the case 110 and the top of the case 110, and the second air duct 250 is a gap between the drawer 120 near the bottom of the inner side of the case 110 and the bottom of the case 110. For example, in the case where there are a plurality of drawers 120 stacked one above another inside the cabinet 110, the first air duct 240 is located at the top of the uppermost drawer 120 (i.e., the drawer 120 near the top of the inside of the cabinet 110), and the second air duct 250 is located at the bottom of the lowermost drawer 120 (i.e., the drawer 120 near the bottom of the inside of the cabinet 110). For another example, in the case that there are a plurality of drawers 120 placed in a lateral arrangement inside the cabinet 110, the first air duct 240 may be a gap between the top of all the drawers 120 and the top of the cabinet 110, and the second air duct 250 may be a gap between the bottom of all the drawers 120 and the bottom of the cabinet 110.

It can be appreciated that, in the case that the box 110 has a plurality of drawers 120 stacked up and down, the cavity structure 150 is further provided with a refrigeration air outlet 160, and the refrigeration air outlet 160 is located on the cavity structure 150 between two adjacent drawers 120. And a first damper 170 is provided at the freezing air outlet 160, and the first damper 170 may open or close the freezing air outlet 160.

Under the condition that the first air door 170 is opened, the refrigeration air outlet 160 is in an opened state, the fan 152 can supply air to the drawers 120 for refrigeration through the refrigeration air outlet 160, wherein, because the drawers 120 are open at the top, the fan 152 can supply air to the bottoms of the upper drawers in the two adjacent drawers 120 stacked up and down through the refrigeration air outlet 160, and can also supply air to the interiors of the drawers in the lower layers for cooling, and meanwhile, because the fan 152 can supply air to the interiors of the drawers 120 close to the top of the inner side of the box body 110 through the first air duct 240, the air supply refrigeration of each drawer 120 is realized under the cooperation of the refrigeration air outlet 160 and the first air duct 240.

With the first damper 170 closed, the freezer outlet 160 is in a closed state, so that the fan 152 cannot supply air to the drawer 120 through the freezer outlet 160. The fan 152 may supply air to the top and the inside of the upper drawer of the two adjacent upper and lower stacked drawers 120 through the cooling air outlet 154 provided at the top of the cavity structure 150, so as to maintain the low-temperature storage environment of the upper drawer and supply air to the first area 230. Therefore, under the condition that the heater 140 works, the temperature of the air flowing through the first area 230 is increased, in order to reduce the heat entering the drawer 120 along with the air through the refrigeration air outlet 160, the first air door 170 is closed, so that the temperature of the interior of the drawer 120 is prevented from being increased due to the fact that the air which is not subjected to heat exchange and temperature reduction by the evaporator 151 directly enters the drawer 120, the influence on the temperature of the interior of the drawer 120 in the process of heating and defrosting by the heater 140 is reduced, and the effect of melting the frost layer on the outer side of the drawer 120 and the inner side of the door 130 while the interior of the drawer 120 is ensured to be in a low-temperature environment is achieved.

It will be appreciated that the first partition 190 is provided within the second air duct 250 to separate the second air duct 250 so that the second air duct 250 is separated to form the defrost air duct 252 and the freeze air duct 251, wherein the freeze air duct 251 is located above the defrost air duct 252, i.e., the freeze air duct 251 is located near the bottom of the outside of the drawer 120, and the defrost air duct 252 is located near the inside bottom of the case 110. Since the defrost air duct 252 and the freeze air duct 251 are the second air duct 250 separated by the first partition 190, both the defrost air duct 252 and the freeze air duct 251 may be in communication with the bottom of the first region 230 and the bottom of the cavity structure 150, i.e., both the defrost air duct 252 and the freeze air duct 251 may be part of the circulation air duct.

The second air door 180 is further disposed in the second air duct 250, that is, between the bottom of the drawer 120 and the bottom of the case 110, the second air door 180 has a freezing communication state and a defrosting communication state, in which case the second air door 180 is in the freezing communication state, the first area 230 may be communicated with the cavity structure 150 through the freezing air duct 251, and the first area 230 may not be communicated with the cavity structure 150 through the defrosting air duct 252, at this time, the first area 230, the freezing air duct 251, the cavity structure 150 and the first air duct 240 form a circulation air duct, and since the freezing air duct 251 is close to the bottom outside the drawer 120, in the case that the heater 140 stops working and the evaporator 151 is in the refrigerating state, cold air may be supplied to the bottom of the drawer 120 through the freezing air duct 251 to maintain the low temperature environment inside the drawer 120. In the case that the second air door 180 is in the defrosting communication state, the first area 230 may be communicated with the cavity structure 150 through the defrosting air duct 252, and the first area 230 cannot be communicated with the cavity structure 150 through the freezing air duct 251, at this time, the first area 230, the defrosting air duct 252, the cavity structure 150 and the first air duct 240 form a circulating air duct, and since the defrosting air duct 252 is close to the bottom of the inner side of the case 110, in the case that the heater 140 works, hot air directly flows into the defrosting air duct 252 through the first area 230, and the first partition 190 can isolate heat in the defrosting air duct 252, so that the influence of hot air on the internal temperature of the drawer 120 is reduced.

It should be noted that, the second air door 180 may be installed on the first partition 190, where the second air door 180 may be located at an end of the first partition 190 near the first area 230, for example, by rotating the second air door 180 by an angle such that the second air door 180 shields a communication between the first area 230 and the freezing air duct 251, that is, the second air door 180 is in a defrosting communication state, so that the first area 230 cannot communicate with the cavity structure 150 through the freezing air duct 251; the second air door 180 is turned by an angle such that the second air door 180 blocks the communication between the first area 230 and the defrost duct 252, i.e., the second air door 180 is in a frozen communication state, so that the first area 230 cannot communicate with the cavity structure 150 through the defrost duct 252. Therefore, in the case where the heater 140 is operated, the second damper 180 is in the defrosting communication state, and the first region 230 delivers heated air only into the defrosting air duct 252, but not into the freezing air duct 251, i.e., the heated air is difficult to influence the temperature inside the drawer 120; the second damper 180 may also be located at an end of the first partition 190 proximate the cavity structure 150. In addition, the second air door 180 may be disposed on the first partition 190 in a penetrating manner, so that the first area 230 is communicated with the cavity mechanism 150 through the refrigerating air duct 251 or the first area 230 is communicated with the cavity mechanism 150 through the defrosting air duct 252 by lifting the second air door 180.

It will be appreciated that when the heater 140 is operated, after the inside of the door 130 and the outside of the drawer 120 are heated, the frost layer is melted into defrost water, which flows to the bottom of the cabinet 110. In order to prevent the second air duct 250 from being blocked by the re-frosted accumulation of the frosted water at the bottom of the cabinet 110 after the heater 140 stops operating, the air circulation inside the cabinet 110 is affected, and the refrigeration of the refrigeration equipment 100 is disturbed, therefore, the frosted drain port 200 for discharging the frosted water is formed at the bottom inside the cabinet 110, so that the frosted water can flow to the drain pipe 210 through the frosted drain port 200 to be discharged out of the refrigeration equipment 100. It should be noted that, the evaporator 151 in the cavity structure 150 is in a refrigeration state for a long time, and the surface of the evaporator 151 is easy to frost under the condition of low temperature, so the evaporator heater wire 153 is further disposed in the cavity structure 150, the evaporator 151 is heated and defrosted by the evaporator heater wire 153, and the defrosted water formed by melting the frost layer of the evaporator 151 can be discharged out of the refrigeration device 100 through the defrosting drain outlet 200, so as to prevent the defrosted water from accumulating at the bottom of the cavity structure 150 and then frosting to block the communication position between the cavity structure 150 and the second air duct 250.

It is understood that the defrost drain port 200 may include an evaporation drain port 201 and a return air drain port 202. The evaporation drain port 201 is communicated with the cavity structure 150, that is, the bottom of the cavity structure 150 is provided with the evaporation drain port 201, and is used for draining the defrosting water formed by melting the frost layer on the surface of the evaporator 151, and the evaporation drain port 201 can be located under the evaporator 151, so that the defrosting water of the evaporator 151 can be drained quickly. And the return air outlet 202 is communicated with the second air duct 250, and the return air outlet 202 is used for discharging defrosting water formed by melting the frost layers on the surfaces of the door 130 and the drawer 120. The frost layer on the surfaces of the door 130 and the drawer 120 is melted to form defrosting water, and the defrosting water flows to the return air outlet 202 of the second air duct 250 to be discharged under the action of the air flow in the first area 230 and the second air duct 250. Therefore, by providing a plurality of water discharge ports, the evaporator 151 and the drawer 120 can be prevented from being blocked due to excessive defrosting water caused by defrosting at the same time, and the phenomenon of air leakage caused by excessively large defrosting water discharge ports 200 can be avoided.

It should be noted that, the return air outlet 202 may be communicated with one end of the second air duct 250 near the cavity structure 150, that is, near the outlet end of the second air duct 250, so as to help the frost formed by melting the frost layer on the surfaces of the door 130 and the drawer 120 to collect in the second air duct 250, and drain all the frost in the second air duct 250.

It will be appreciated that the connection between the second air duct 250 and the first area 230 is provided with a drainage structure extending obliquely downward to the return air outlet 202, i.e. a slope structure is provided between the inlet end of the second air duct 250 and the return air outlet 202, so that the defrosted water on the outer surface of the drawer 120 and the inner surface of the door 130 can be collected and discharged through the return air outlet 202. In addition, the bottom of the box 110 is provided with a flow guide pipe which extends downwards from the return air outlet 202 to the drain pipe 210 in an inclined manner, so that the defrosting water can flow to the drain pipe 210 quickly through the flow guide pipe, and the return air outlet 202 is prevented from being blocked.

It will be appreciated that the second damper 180 may be located at an end of the first partition 190 near the cavity structure 150, and the second damper 180 may be turned by an angle such that the second damper 180 blocks the communication between the cavity structure 150 and the cooling air duct 251, that is, the second damper 180 is in a defrosting communication state, so that the first area 230 cannot communicate with the cavity structure 150 through the cooling air duct 251; the second air door 180 is rotated to enable the second air door 180 to cover the communication part between the cavity structure 150 and the defrosting air duct 252, namely, the second air door 180 is in a freezing communication state, so that the first area 230 cannot be communicated with the cavity structure 150 through the defrosting air duct 252. In the case that the defrosting drain port 200 is provided in the second air duct 250 in the bottom of the case 110, since the first area 230 is always in communication with the freezing air duct 251 and the defrosting air duct 252, respectively, even if the first area 230 cannot communicate with the cavity structure 150 through the defrosting air duct 252, the defrosting water formed by melting the frost layer on the surfaces of the door 130 and the drawer 120 can still flow directly to the defrosting drain port 200, so that the second air door 180 cannot be opened or closed due to accumulation of the defrosting water at the second air door 180. Besides the defrosting water formed by melting the frost layers on the surfaces of the door 130 and the drawer 120 in the working state of the heater 140, the condensation water formed by the external air cooled after the door 130 is opened and closed can also directly flow to the defrosting water outlet 200, so that the icing blockage caused by the accumulated water in the bottom of the box 110, namely the defrosting air duct 252 is avoided.

Specifically, the refrigerating apparatus 100 may be an apparatus having a function of storing articles at a low temperature, such as a refrigerator, a freezer, a refrigerator car, or a refrigerated container, wherein the case 110, the door 130, the drawer 120, etc. in the refrigerating apparatus 100 may be adaptively adjusted according to an actual application scenario, for example, an opening of the drawer 120 may face the door 130, and a side of the drawer 120 facing the door 130 (an opening of the drawer 120) may be provided with a door panel for opening or closing the drawer 120. The refrigerating apparatus 100 provided in the embodiment of the present utility model will be described in detail below using the refrigerating apparatus 100 as a refrigerator.

Example one: referring to fig. 5, fig. 5 is a schematic diagram of a refrigeration apparatus 100 according to an embodiment of the present utility model in a refrigeration state. Two drawers 120 stacked up and down exist in the box 110, the drawer 120 positioned above is a first drawer, and the drawer 120 positioned below is a second drawer. When there is no frost layer between the inside of the door 130 and the outside of the two drawers 120, the refrigeration apparatus 100 is in a normal refrigeration state, the first damper 170 is in an open state, and accordingly, the refrigeration outlet 160 is in an open state. The evaporator 151 outputs cooling energy to the inside of the case 110 through the fan 152, and the fan 152 performs air-blowing and cooling to the first drawer located at the top through the first air duct 240, and simultaneously performs air-blowing and cooling to the second drawer through the refrigerating air outlet 160 formed in the cavity structure 150. The cold air in the first air duct 240 flows into the first area 230 after ventilation in the first drawer, and can supply air to the outside of the two drawers 120 for refrigeration while reducing the temperature of the first area 230, so that the temperature distribution in the box 110 of the refrigeration equipment 100 is uniform and the temperature inside the two drawers 120 is kept stable. The second damper 180 is located at an end of the first partition 190 near the cavity structure 150, and the second damper 180 shields the defrost air duct 252 in a state where the refrigeration apparatus 100 is in a normal refrigeration state. The cool air in the first area 230 returns to the cavity structure 150 through the cooling air duct 251 near the bottom of the drawer 120, and supplies air to cool the bottom of the drawer 120, maintaining the low temperature environment inside the drawer 120.

If the door 130 is opened and closed at this time, condensation water is generated between the inner side of the door 130 and the outer side surface of the drawer 120, and the condensation water is driven by the flowing gas in the first area 230 to drop into the defrosting air duct 252. Due to the drainage structure between the inlet of the defrost duct 252 and the return air drain 202, the condensate may flow along the drainage structure to the return air drain 202 and drain out of the refrigeration appliance 100 through the drain 210, thereby avoiding blockage of the defrost duct 252 by accumulation of coalesced ice in the defrost duct 252.

Example two: referring to fig. 6, fig. 6 is a schematic view of a refrigeration apparatus 100 according to an embodiment of the present utility model in a defrost state. Two drawers 120 stacked up and down exist in the box 110, the drawer 120 positioned above is a first drawer, and the drawer 120 positioned below is a second drawer. When there is a frost layer between the inside of the door 130 and the outside of the two drawers 120, the refrigeration apparatus 100 enters a defrost state, the evaporator 151 is in a normal refrigeration state, the heater 140 is in a heating defrosting state, and the second damper 180 shields the cooling air duct 251. The fan 152 blows the cool air at the evaporator 151 to the inside of the first drawer and the first region 230 through the first air duct 240, and the heater 140 can heat the cool air introduced in addition to the inner side surface of the door 130 and the outer side surface of the drawer 120 by generating heat, so that the heated air flows in the first region 230, which is helpful for melting the frost layer between the door 130 and the drawer 120, and improves defrosting efficiency. The hot air enters the defrosting air duct 252 after exchanging heat with the frost layer and cooling, the first partition plate 190 can isolate heat diffused from the defrosting air duct 252, influence of the bottom of the drawer 120 on the low-temperature environment inside the drawer 120 is reduced, and meanwhile, defrosting water after melting the frost layer flows to the return air drain port 202 along the defrosting air duct 252 and is discharged. Since the air is not completely cooled after entering the cavity structure 150 through the defrosting air duct 252, the first air door 170 is closed, so that the freezing air outlet 160 is in a closed state, the air which is not completely cooled cannot be blown to the second drawer through the freezing air outlet 160, the influence on the low-temperature environment inside the second drawer is reduced, and the effect of melting the frost layer outside the drawer 120 and inside the door 130 while ensuring the low-temperature environment inside the drawer 120 is achieved. In addition, the evaporator 151 may enter a heating state or a shutdown state, the evaporation heating wire 153 enters a heating defrosting state, and the air of the cavity structure 150 is heated by the heat generated by the evaporation heating wire 153, so that the fan 152 blows hot air to the first area 230 through the first air duct 240, the hot air is heated by the heater 140, the air temperature is increased, and the melting rate of the frost layer between the door 130 and the drawer 120 is accelerated.

The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present utility model.

Claims (10)

1. The refrigeration equipment is characterized by comprising a box body, a door body for opening or closing the box body and a drawer arranged in the box body; the gap between the drawer and the door body forms a first area for the gas in the box body to flow, and a heater for heating the first area is arranged between the outer side of the drawer and the inner side of the door body.

2. The refrigeration appliance of claim 1 wherein the heater is located on a side of the drawer adjacent the door body and/or inside the door body.

3. The refrigeration unit as recited in claim 1 wherein said cabinet includes a cavity structure for housing an evaporator and a fan, said cavity structure being disposed opposite said door, a top of said cavity structure being provided with a refrigeration air outlet for supplying air to said drawer, a gap between said top of said drawer and an inside top of said cabinet forming a first air duct, a gap between an outside bottom of said drawer and an inside bottom of said cabinet forming a second air duct, said first air duct, said second air duct, said first area and said cavity structure communicating to form a circulation air duct, wherein said first air duct communicates with said cavity structure through said refrigeration air outlet.

4. A refrigeration device according to claim 3, wherein the box body comprises at least two drawers which are stacked up and down, the cavity structure is provided with a refrigeration air outlet for supplying air to the drawers for refrigeration, the refrigeration air outlet is positioned between two adjacent drawers, and the refrigeration air outlet is provided with a first air door for enabling the refrigeration air outlet to be in an open state or a closed state.

5. A refrigeration unit as recited in claim 3 wherein a first partition is disposed within said second air duct, said first partition dividing said second air duct into a refrigerated air duct adjacent said drawer and a defrosted air duct adjacent said cabinet; a second air door is arranged between the bottom of the drawer and the bottom of the box body, and the second air door is used for enabling the first area to be communicated with the cavity structure through the freezing air duct or enabling the first area to be communicated with the cavity structure through the defrosting air duct.

6. The refrigeration apparatus of claim 5 wherein said second damper is positioned at an end of said first baffle adjacent said cavity structure.

7. A refrigeration unit as claimed in claim 3 wherein the inside bottom of the cabinet is provided with a defrost drain for communicating with a drain.

8. The refrigeration appliance according to claim 7 wherein said defrost drain includes an evaporative drain in communication with said cavity structure and a return drain in communication with said second air duct.

9. The refrigeration unit as recited in claim 8 wherein said second duct is provided with a drain structure extending obliquely downwardly to said return air drain opening at a junction with said first area.

10. The refrigeration appliance according to claim 1, wherein an insulation layer is provided on the inside of the drawer.