CN219318778U

CN219318778U - Direct cooling type refrigerating equipment

Info

Publication number: CN219318778U
Application number: CN202320163121.2U
Authority: CN
Inventors: 李忠敏; 成俊亮; 张绍红; 任伟涛
Original assignee: Qingdao Haier Special Refrigerator Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Special Refrigerator Co Ltd; Haier Smart Home Co Ltd
Priority date: 2023-02-01
Filing date: 2023-02-01
Publication date: 2023-07-07
Anticipated expiration: 2033-02-01

Abstract

The utility model provides direct-cooling refrigeration equipment, which is internally provided with a refrigeration system and a temperature equalizing system, wherein a temperature equalizing evaporator in the temperature equalizing system and a refrigeration evaporator in the refrigeration system are arranged between a compressor and a throttling device in parallel; the first flow control part in the temperature equalizing system controls the refrigerant flowing out of the condenser to flow to the throttling device or to flow to the bypass pipeline in the temperature equalizing system, so that the refrigerating equipment is controlled to perform refrigerating operation or defrosting operation, air circulates between the temperature equalizing evaporator and the refrigerating compartment under the action of the fan assembly during refrigerating, so that more water vapor is condensed in the temperature equalizing evaporator, and frost on the temperature equalizing evaporator is removed by utilizing the heat of the refrigerant during defrosting. The direct-cooling type refrigeration equipment provided by the utility model can solve the problem of freezing of the inner wall of the direct-cooling type refrigeration equipment.

Description

Direct cooling type refrigerating equipment

Technical Field

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

Background

The direct-cooling type refrigeration equipment is like a direct-cooling type horizontal refrigerator, and a direct-cooling mode is generally adopted to provide cold energy for a refrigeration compartment, a cabinet body of the direct-cooling type horizontal refrigerator generally comprises a shell and an inner container arranged on the shell, an evaporator of the direct-cooling type horizontal refrigerator generally keeps an evaporation tube wound outside the inner container, and the cold energy is conducted into a refrigeration space of the inner container from the evaporation tube in a heat conduction and natural radiation mode.

The direct-cooling horizontal refrigerator is characterized in that the door body is frequently opened, external air can enter the refrigerating compartment after the door body is opened, water vapor is mixed in the external air, when the water vapor touches the inner wall of the refrigerating compartment after entering the refrigerating compartment, the water vapor in the air can be condensed on the inner wall of the refrigerating compartment due to lower temperature of the inner wall of the refrigerating compartment, so that frost is condensed on the inner wall of the refrigerating compartment, and long-term accumulation of the frost can influence the refrigerating efficiency of the refrigerating equipment.

Disclosure of Invention

The utility model aims to provide direct-cooling type refrigeration equipment, which comprises a refrigeration evaporator and a temperature equalization evaporator, wherein the first flow control piece is used for controlling the refrigerant to flow to the temperature equalization evaporator directly or flow to the refrigeration evaporator and the temperature equalization evaporator through a throttling device, so that the refrigeration and defrosting of the direct-cooling type refrigeration equipment are realized, and the problem of indoor wall frosting of a refrigeration room in the prior art is solved.

In order to achieve one of the above objects, an embodiment of the present utility model provides a direct-cooling type refrigeration apparatus, including a case having a refrigeration compartment, a door disposed on the case for opening or closing an opening of the refrigeration compartment, a refrigeration system, and a temperature equalizing system;

the refrigerating system comprises a compressor, a condenser, a throttling device and a refrigerating evaporator which are sequentially connected; the temperature equalizing system comprises a temperature equalizing evaporator, a fan assembly and a control unit; the temperature equalizing evaporator and the refrigerating evaporator are arranged in parallel between the compressor and the throttling device;

the control unit comprises a bypass pipeline connected between the condenser and the temperature-equalizing evaporator and a first flow control piece arranged at the front end of the bypass pipeline, wherein the first flow control piece is used for controlling the refrigerant flowing out of the condenser to flow to the throttling device or flow to the bypass pipeline, and the fan assembly drives air in the refrigeration compartment to circulate between the temperature-equalizing evaporator and the refrigeration compartment.

As a further improvement of an embodiment of the present utility model, the control unit further includes a second flow control member for controlling a flow rate of the refrigerant flowing to the refrigeration evaporator and the temperature-equalizing evaporator, and the flow rate of the refrigerant flowing to the temperature-equalizing evaporator is greater than the flow rate flowing to the refrigeration evaporator.

As a further improvement of an embodiment of the utility model, the box body comprises a shell and a liner arranged in the shell, and the refrigeration evaporator comprises an evaporation coil wound outside the liner;

the temperature-equalizing evaporator is provided with a temperature-equalizing evaporation coil and heat conducting fins arranged on the temperature-equalizing evaporation coil.

As a further improvement of an embodiment of the utility model, the temperature equalizing system further comprises an air inlet and an air outlet which are communicated with the refrigerating compartment and an air channel which is communicated with the air inlet and the air outlet, the fan assembly and the temperature equalizing evaporator are arranged in the air channel, the fan assembly comprises a fan, and the fan drives air in the refrigerating compartment to enter the air channel from the air inlet and then blow back to the refrigerating compartment from the air outlet.

As a further improvement of an embodiment of the present utility model, the temperature equalizing system further includes a housing forming the air duct, the air inlet and the air outlet are opened on the housing, and the housing is provided with a damper assembly capable of opening or closing the air inlet and the air outlet.

As a further improvement of an embodiment of the utility model, the direct-cooling refrigeration equipment is a horizontal refrigerator, the refrigeration compartment is arranged with an upward opening, the shell is arranged in the middle of the refrigeration compartment and extends along the height direction of the direct-cooling refrigeration equipment, and the air inlet and the air outlet are respectively arranged at two ends of the shell.

As a further improvement of an embodiment of the present utility model, the air inlet is circumferentially arranged at the lower end of the side wall of the housing, and the air outlet is circumferentially arranged at the upper end of the side wall of the housing;

the air door assembly comprises a first air door and a first lifting piece, wherein the first air door can cover the air outlet, and the air outlet is opened or closed by descending or ascending under the driving of the first lifting piece.

As a further improvement of an embodiment of the present utility model, the damper assembly further includes a second damper and a second lifting member, wherein the second damper can cover the air inlet and is lifted or lowered by the second lifting member, so that the air inlet is opened or closed.

As a further improvement of an embodiment of the present utility model, the housing is formed with a temperature equalizing chamber located between the air inlet and the air outlet, a temperature equalizing top wall and a temperature equalizing Wen Debi formed at the top and bottom of the temperature equalizing chamber, the temperature equalizing chamber is located in the air duct, and the fan and the temperature equalizing evaporator are arranged in the temperature equalizing chamber;

the shell also comprises a first water guide channel, wherein the first water guide channel comprises a first water outlet which is formed in the equal Wen Debi, and a first water guide pipe which is communicated with the first water outlet and enables defrosting water to flow out of the box body.

As a further improvement of an embodiment of the present utility model, the housing further includes a second water guide channel, and the second water guide channel includes a second water outlet provided at the bottom of the housing, and a second water guide pipe communicating with the second water outlet and allowing the defrost water to flow out of the tank.

As a further improvement of an embodiment of the utility model, the direct-cooling refrigerating device also comprises a roller and a water pan which are arranged at the bottom of the direct-cooling refrigerating device;

the first water guide pipe and the second water guide pipe penetrate through the bottom of the inner container and the bottom of the shell, so that defrosting water flows into the water receiving disc outside the box body.

The one or more technical schemes provided by the utility model have at least the following technical effects or advantages:

the direct-cooling type refrigeration equipment provided by the utility model comprises a refrigeration evaporator and a temperature equalization evaporator, wherein the first flow control piece is used for controlling the refrigerant to directly flow to the temperature equalization evaporator or flow to the refrigeration evaporator and the temperature equalization evaporator after passing through the throttling device. If the refrigerant flows to the refrigeration evaporator and the temperature-equalizing evaporator after passing through the throttling device, the refrigeration evaporator and the temperature-equalizing evaporator simultaneously provide cold energy for the indoor space of the refrigeration room, and under the action of the fan component, the wet air in the indoor space of the refrigeration room is attached to the temperature-equalizing evaporator when flowing through the temperature-equalizing evaporator, so that frosting on the inner wall of the indoor space of the refrigeration room is reduced; if the refrigerant directly flows from the condenser to the temperature-equalizing evaporator without being throttled by the throttling device, the temperature of the refrigerant is slightly higher, and when the refrigerant flows through the temperature-equalizing evaporator, the frost on the temperature-equalizing evaporator is melted into defrosting water.

Drawings

Fig. 1 is a schematic diagram of a refrigeration system and a temperature equalizing system of a direct-cooling refrigeration device according to an embodiment of the present utility model.

Fig. 2 is a top view of a direct-cooled refrigeration apparatus according to an embodiment of the present utility model.

Fig. 3 is a schematic cross-sectional view taken along line A-A in fig. 2.

Fig. 4 is an enlarged view at B in fig. 3.

1. A housing; 2. an inner container; 21. a refrigeration compartment; 3. a housing; 31. an air inlet; 32. an air outlet; 33. an air duct; 34. a damper assembly; 341. a first damper; 342. a first lifting member; 343. a second damper; 344. a second lifting member; 35. a temperature equalizing chamber; 351. wen Dingbi all; 352. wen Debi all; 36. a first water guide passage; 361. a first drain port; 362. a first water conduit; 37. a second water guide passage; 371. a second drain port; 372. a second water conduit; 4. a roller; 5. a water receiving tray;

61. a compressor; 62. a condenser; 63. a throttle device; 64. a refrigeration evaporator; 641. an evaporation coil; 71. a temperature equalizing evaporator; 711. a uniform temperature evaporation coil; 712. a heat conduction fin; 72. a blower; 731. a bypass line; 732. a first flow control member; 733. a second flow control.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Terms such as "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like as used herein to refer to a spatially relative position are used for ease of illustration to describe one element or feature's relationship to another element or feature as illustrated in the figures. The term spatially relative position may 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" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.

Also, it should be understood that, although the terms first, second, etc. may be used herein to describe various elements or structures, these described objects should not be limited by these terms. These terms are only used to distinguish one such descriptive object from another. For example, the first flow control may be referred to as a second flow control, and similarly the second flow control may also be referred to as a first flow control, without departing from the scope of the present application.

The first embodiment of the utility model provides a direct-cooling refrigeration device, as shown in fig. 1-4, comprising a box body with a refrigeration compartment 21, a door body arranged on the box body and used for opening or closing an opening of the refrigeration compartment 21, a refrigeration system and a temperature equalizing system; the refrigeration system comprises a compressor 61, a condenser 62, a throttling device 63 and a refrigeration evaporator 64 which are connected in sequence; the temperature equalizing system comprises a temperature equalizing evaporator 71, a fan assembly and a control unit; the temperature equalizing evaporator 71 and the refrigerating evaporator 64 are arranged in parallel between the compressor 61 and the throttling device 63; the control unit includes a bypass line 731 connected between the condenser 62 and the temperature-uniformizing evaporator 71 and a first flow control member 732 provided at a front end of the bypass line 731, the first flow control member 732 being for controlling the flow of the refrigerant flowing out of the condenser 62 to the throttling device 63 or to the bypass line 731, and the fan assembly driving the air in the cooling compartment 21 to circulate between the temperature-uniformizing evaporator 71 and the cooling compartment 21.

Specifically, the case includes a housing 1 and a liner 2 provided in the housing 1, and a refrigerating compartment 21 is formed by the liner 2. The refrigeration evaporator 64 comprises an evaporation coil 641 wound outside the inner container 2, and the evaporation coil 641 provides cold for the refrigeration compartment 21 by adopting a heat conduction and direct radiation mode; the temperature-equalizing evaporator 71 is provided with a temperature-equalizing evaporation coil 711 and heat conducting fins 712 arranged on the temperature-equalizing evaporation coil 711, the heat conducting fins 712 can increase the area of the temperature-equalizing evaporator 71 for releasing cold energy, and meanwhile, the area of condensing water vapor into frost on the temperature-equalizing evaporator 71 is increased, so that the inner wall of the refrigeration compartment 21 is well reduced in humidity and frost is avoided.

The cold energy transferred by the bladder-wound refrigerating evaporator 64 is transferred from the evaporating tube into the refrigerating compartment 21 by way of heat conduction and natural radiation, and the inner wall of the refrigerating compartment 21 directly receives the cold energy from the evaporating coil 641, so that the temperature of the inner wall of the refrigerating compartment 21 is relatively low, and the hot humid air entering the refrigerating compartment 21 from the outside or the hot humid air evaporated by the moisture carried by the articles/food in the refrigerating compartment 21 are easily condensed into frost when contacting the inner wall of the refrigerating compartment 21, and the frost on the inner wall of the refrigerating compartment 21 affects the heat transfer efficiency of the refrigerating evaporator 64.

In this embodiment, the temperature equalizing evaporator 71 is connected in parallel with the refrigeration evaporator 64 and is disposed between the compressor 61 and the throttling device 63, that is, the temperature equalizing evaporator 71 and the refrigeration evaporator 64 use the same set of refrigeration unit, the refrigerant forms high-temperature and high-pressure gas after being compressed in the compressor 61, and after being cooled by the condenser 62, the refrigerant is throttled and depressurized by the throttling device 63 and flows to the temperature equalizing evaporator 71 and the refrigeration evaporator 64 respectively, and the same set of refrigeration unit is adopted, so that the manufacturing cost can be saved, and the redundant space cannot be occupied.

The first flow control 732 controls the flow of refrigerant to the restriction 63 or the bypass line 731.

When the refrigerant flows to the throttling device 63, the refrigerant is throttled by the throttling device 63 in a depressurization way, and flows to the temperature equalizing evaporator 71 and the refrigeration evaporator 64 respectively, and the refrigeration evaporator 64 transfers the cold energy to the refrigeration compartment 21 through heat conduction and natural radiation to cool the refrigeration compartment 21; the temperature equalization evaporator 71 circulates air in the refrigeration compartment 21 between the temperature equalization evaporator 71 and the refrigeration compartment 21 through the fan assembly, and guides wet air in the refrigeration compartment 21 to the temperature equalization evaporator 71, so that moisture in the wet air is condensed into frost on the heat conduction fins 712 of the temperature equalization evaporator 71, and the frost formed on the inner wall of the refrigeration compartment 21 by the wet air in the refrigeration compartment 21 is reduced, and the influence of the frost formed on the inner wall of the refrigeration compartment 21 on the cooling efficiency of the refrigeration compartment 21 by the refrigeration evaporator 64 is slowed down.

The control element further comprises a second flow control 733, the second flow control 733 being adapted to control the flow of refrigerant to the refrigeration evaporator 64 and to the temperature-uniformizing evaporator 71, preferably the second flow control 733 controlling the flow of refrigerant to the temperature-uniformizing evaporator 71 to be greater than the flow to the refrigeration evaporator 64. The flow rate of the refrigerant flowing through the temperature-uniformizing evaporator 71 is large, and more cold energy can be provided, so that the temperature of the surface of the temperature-uniformizing evaporator 71 can be lower than that of the surface of the refrigerating evaporator 64, thereby enabling the frost to be mainly concentrated on the temperature-uniformizing evaporator 71 and reducing the frost on the inner wall of the refrigerating compartment 21.

When the refrigerant flows to the bypass line 731 and flows to the temperature-uniforming evaporator 71 through the bypass line 731, the refrigerant is not throttled and depressurized by the throttle device 63, the temperature of the refrigerant is slightly higher, and when the refrigerant flows through the temperature-uniforming evaporator 71, the frost on the temperature-uniforming evaporator 71 is melted into defrosting water, the frost on the temperature-uniforming evaporator 71 is removed, and the occurrence of the frost is avoided, so that the refrigerating efficiency of the temperature-uniforming evaporator 71 is reduced.

The refrigeration equipment provided by the utility model cools the refrigeration compartment 21 through the air cooling of the temperature-equalizing evaporator 71 and the direct cooling of the refrigeration evaporator 64, and can not only prevent the inner wall of the refrigeration compartment 21 from frosting to influence the refrigeration efficiency in the refrigeration process, but also defrost the temperature-equalizing evaporator 71.

In this embodiment, as shown in fig. 3 and 4, the refrigeration device is a horizontal refrigerator, the refrigeration compartment 21 is disposed with an upward opening, and the temperature equalizing system is disposed in the middle of the refrigeration compartment 21 and extends along the height direction of the refrigeration device, and specifically further includes: the air inlet 31, the air outlet 32 and the air channel 33 which are communicated with the refrigeration compartment 21, the shell 3 which forms the air channel 33, the air door component 34 which can open or close the air inlet 31 and the air outlet 32, the fan component and the temperature equalizing evaporator 71 are arranged in the air channel 33, wherein the air inlet 31 and the air outlet 32 are respectively arranged at two ends of the shell 3, and the fan component comprises a fan 72.

The direct cooling horizontal refrigerator provided in this embodiment has a temperature difference between the upper air and the lower air in the refrigerating compartment 21 due to the sinking of the cool air, and the temperature of the upper air is generally higher than that of the lower air. The shell 3 forming the air duct 33 is arranged in the middle of the refrigeration compartment 21, and air in the refrigeration compartment 21 enters the air duct 33 from the air inlet 31 and is blown back to the refrigeration compartment 21 from the air outlet 32 under the drive of the fan 72. Since the air inlet 31 and the air outlet 32 are respectively arranged at two ends of the shell 3, that is, the air in the refrigeration compartment 21 circulates between the refrigeration compartment 21 and the air duct 33 under the drive of the fan 72, the air at the upper part of the refrigeration compartment 21 and the air at the lower part circulate, so that the temperature of the air in the refrigeration compartment 21 is more uniform and no temperature difference exists.

Moisture in the humid air in the refrigeration compartment 21 enters the air duct 33 under the drive of the fan 72, flows through the temperature-equalizing evaporation coil 711 and the heat conducting fins 712 of the temperature-equalizing evaporator 71 in the air duct 33, and is condensed into frost on the temperature-equalizing evaporation coil 711 and the heat conducting fins 712, so that the frost formation of the humid air on the inner wall of the refrigeration compartment 21 is reduced.

It should be understood that the housing 3 forming the air duct 33 in this embodiment is a cylindrical housing 3 disposed in the middle of the refrigeration compartment 21, and in other embodiments, the housing 3 may be a housing 3 connected to two inner walls disposed opposite to the refrigeration compartment 21, or other housings 3 disposed in the middle of the refrigeration compartment 21 and extending along the height direction of the refrigeration device.

Further, in the present embodiment, the air outlet 32 is disposed around the upper end of the side wall of the housing 3, and the air inlet 31 is disposed around the lower end of the side wall of the housing 3. The damper assembly 34 includes a first damper 341 and a first elevating member 342 capable of opening or closing the air outlet 32, and a second damper 343 and a second elevating member 344 capable of opening or closing the air inlet 31.

When the first flow control member 732 controls the flow of the refrigerant to the bypass line 731, the refrigerant flows to the temperature-uniforming evaporator 71 through the bypass line 731, which is in defrosting operation. The first elevating member 342 is controlled to be elevated, so that the first air door 341 is elevated to cover the air outlet 32, and the fan 72 is closed, thereby avoiding the heat generated by the refrigerant with higher temperature in the temperature equalizing evaporator 71 from rising and flowing out from the air outlet 32 positioned at the upper end of the housing 3, and raising the temperature of the upper part of the refrigerating compartment 21, and increasing the temperature difference between the upper air and the lower air in the refrigerating compartment 21.

The air in the lower part of the refrigerating compartment 21 has a low sinking temperature due to the cold air, and only a small amount of heat generated by the refrigerant with a high temperature in the temperature equalizing evaporator 71 can overflow from the air inlet 31 in the lower end of the shell 3, and the overflowed small amount of heat can be quickly cooled by heat exchange with the cold air in the lower part of the refrigerating compartment 21 through heat transfer.

Of course, when the first flow control member 732 controls the refrigerant to flow to the bypass line 731, and the refrigerant flows to the temperature-uniforming evaporator 71 through the bypass line 731, the second elevating member 344 may be simultaneously controlled to descend so that the second air door 343 descends to cover the air intake 31. The air outlet and the air inlet 31 are closed, so that heat can be better prevented from diffusing out of the air duct 33 during defrosting, and the temperature of the air in the refrigeration compartment 21 is increased; the heat is kept in the air duct 33, and the heat of the refrigerant with higher temperature in the temperature equalizing evaporator 71 is fully utilized to defrost, so that the defrosting efficiency is improved, and the defrosting time is reduced.

It should be understood that the air inlet 31 and the air outlet 32 are not limited to be respectively disposed at the lower end and the upper end of the housing 3, and in other embodiments, the air inlet 31 may be disposed at the upper end of the housing 3 and the air outlet 32 may be disposed at the lower end of the housing 3. In this case, when the first flow control member 732 controls the flow of the refrigerant to the bypass line 731 and the refrigerant flows to the temperature-uniformizing evaporator 71 through the bypass line 731, the air inlet 31 at the upper end of the housing 3 is first closed to prevent the heat generated by the refrigerant having a relatively high temperature in the temperature-uniformizing evaporator 71 from floating upward and flowing out of the air inlet 31 at the upper end of the housing 3, so that the temperature of the upper portion of the cooling compartment 21 is increased and the temperature difference between the upper air and the lower air in the cooling compartment 21 is increased. And then the air outlet 32 at the lower end of the shell 3 can be selectively closed.

Further, the housing 3 is further formed with a temperature equalizing chamber 35, and a temperature equalizing chamber Wen Dingbi 351 and a temperature equalizing Wen Debi 352 formed at the top and bottom of the temperature equalizing chamber 35, wherein the temperature equalizing chamber 35 is located in the air duct 33 and between the air inlet 31 and the air outlet 32, and the fan 72 and the temperature equalizing evaporator 71 are disposed in the temperature equalizing chamber 35. It will be appreciated that, in order to circulate the air in the refrigerating compartment 21 in the air duct 33, the through holes Wen Dingbi and Wen Debi are provided with holes for circulating the air, which will not be described here.

The air in the refrigerating compartment 21 is driven by the fan 72 to flow from the air inlet 31 through the temperature equalizing evaporator 71 and the fan 72 provided in the temperature equalizing chamber 35, and then is blown back into the refrigerating compartment 21 from the air outlet 32. When defrosting, the defrosting water melted by the frost on the temperature equalizing evaporator 71 is required to be discharged, therefore, the shell 3 further comprises a first water guide channel 36 and a second water guide channel 37, the defrosting water is led out of the refrigeration compartment 21 when defrosting is performed, the outside of the bottom of the refrigeration device is provided with the roller 4 and the water receiving disc 5, the roller 4 is arranged at four corners of the bottom of the refrigeration device, so that the refrigeration device can be balanced, enough accommodating space is provided for the water receiving disc 5 positioned at the bottom of the refrigeration device, and the refrigeration device can be conveniently transferred to the prevented position.

The first water guide channel 36 comprises a first water outlet 361 which is arranged on each Wen Debi 352, and a first water guide pipe 362 which is communicated with the first water outlet 361 and enables the defrosting water to flow into the water receiving disc 5; the second water guide channel 37 includes a second water discharge port 371 provided at the bottom of the housing 3, a second water guide tube 372 communicating with the second water discharge port 371 and allowing the defrost water to flow into the water receiving tray 5. Since the water pan 5 is located at the bottom of the refrigeration equipment, that is, at a position outside the housing 1 of the refrigeration equipment, the first water guide pipe 362 and the second water guide pipe 372 need to pass through the bottom of the liner 2 and the bottom of the housing 1, respectively, so that the air duct 33 can be communicated with the outside, thereby realizing water drainage.

When the temperature equalizing evaporator 71 is defrosted, the melted defrosting water on the temperature equalizing evaporator 71 easily drops on the temperature equalizing Wen Debi and the defrosting water dropped on the temperature equalizing Wen Debi drops on the temperature equalizing Wen Debi to drain the defrosting water into the water receiving tray 5 through the first drain port 361 and the first water guide pipe 362. In addition, a large amount of defrosting water mainly drops to the bottom of the shell 3 through the through holes for air circulation formed in the upper portions Wen Debi and 352, and the defrosting water dropped to the bottom of the shell 3 is discharged into the defrosting water receiving tray 5 through the second water outlet 371 and the second water guide pipe 372.

Further, the bottom of the first lifting member 342 is fixed on the upper portion Wen Dingbi 351, and the top is connected to the first air door 341, when the first lifting member 342 extends upwards, the first air door 341 is driven to cover the air outlet 32, so that the air outlet 32 is closed; when the first lifting member 342 is retracted downward, the first air door 341 is driven to descend so that the air outlet 32 is opened. The top of the second lifting member 344 is fixed on the first Wen Debi, the bottom of the second lifting member 344 is connected with the second air door 343, and when the second lifting member 344 extends downwards, the second air door 343 is driven to cover the air inlet 31, so that the air inlet 31 is closed; when the second lifter 344 is retracted upwards, the second air door 343 is driven to rise so as to open the air inlet 31. Each Wen Dingbi 351 and each Wen Debi 352 fix the first lifter 342 and the second lifter 344, and assist the first damper 341 and the second damper 343 to open or close the air outlet 32 and the air inlet 31.

It should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is for clarity only, and that the skilled artisan should recognize that the embodiments may be combined as appropriate to form other embodiments that will be understood by those skilled in the art.

The above list of detailed descriptions is only specific to practical embodiments of the present utility model, and they are not intended to limit the scope of the present utility model, and all equivalent embodiments or modifications that do not depart from the spirit of the present utility model should be included in the scope of the present utility model.

Claims

1. The direct-cooling refrigeration equipment is characterized by comprising a box body with a refrigeration compartment, a door body, a refrigeration system and a temperature equalizing system, wherein the door body is arranged on the box body and used for opening or closing an opening of the refrigeration compartment;

2. The direct-cooled refrigeration appliance of claim 1, wherein the control unit further includes a second flow control for controlling the flow of refrigerant to the refrigeration evaporator and the temperature-equalization evaporator, and the flow of refrigerant to the temperature-equalization evaporator is greater than the flow to the refrigeration evaporator.

3. The direct-cooled refrigeration apparatus of claim 1, wherein the housing comprises a shell and a liner disposed within the shell, the refrigeration evaporator comprising an evaporation coil wound outside the liner;

4. The direct-cooled refrigeration apparatus of claim 3, wherein the temperature equalizing system further comprises an air inlet, an air outlet, and an air duct, wherein the air inlet and the air outlet are communicated with the refrigeration compartment, the fan assembly and the temperature equalizing evaporator are arranged in the air duct, the fan assembly comprises a fan, and the fan drives air in the refrigeration compartment to enter the air duct from the air inlet, and then blows the air back to the refrigeration compartment from the air outlet.

5. The direct-cooled refrigeration apparatus of claim 4, wherein the temperature equalizing system further comprises a housing forming the air duct, the air inlet and the air outlet are open on the housing, and the housing is provided with a damper assembly capable of opening or closing the air inlet and the air outlet.

6. The direct-cooling type refrigeration equipment according to claim 5, wherein the direct-cooling type refrigeration equipment is a horizontal refrigerator, the refrigeration compartment is arranged with an upward opening, the shell is arranged in the middle of the refrigeration compartment and extends along the height direction of the direct-cooling type refrigeration equipment, and the air inlet and the air outlet are respectively arranged at two ends of the shell.

7. The direct-cooling refrigeration apparatus according to claim 6, wherein the air inlet is circumferentially disposed at a lower end of the side wall of the housing, and the air outlet is circumferentially disposed at an upper end of the side wall of the housing;

8. The direct-cooled refrigeration apparatus of claim 7, wherein the damper assembly further comprises a second damper and a second lifter, the second damper being capable of covering the air intake and being driven by the second lifter to rise or fall to open or close the air intake.

9. The direct cooling refrigeration apparatus according to claim 6, wherein the housing is formed with a temperature equalizing chamber located between the air inlet and the air outlet, a temperature equalizing top wall and a temperature equalizing Wen Debi formed at the top and bottom of the temperature equalizing chamber, the temperature equalizing chamber is located in the air duct, and the fan and the temperature equalizing evaporator are disposed in the temperature equalizing chamber;

10. The direct cooling refrigeration appliance according to claim 9, wherein the housing further includes a second water guide channel including a second drain port provided at a bottom of the housing, a second water guide pipe communicating with the second drain port and allowing the defrost water to flow out of the tank.

11. The direct-cooling refrigeration apparatus as recited in claim 10 further comprising a roller and a water pan disposed at the bottom of the direct-cooling refrigeration apparatus;