WO2022037721A1

WO2022037721A1 - Refrigerator having increased bottom storage space volume

Info

Publication number: WO2022037721A1
Application number: PCT/CN2021/123583
Authority: WO
Inventors: 朱小兵; 董凌云; 野田俊典; 刘会
Original assignee: 青岛海尔电冰箱有限公司; 海尔智家股份有限公司
Priority date: 2020-08-18
Filing date: 2021-10-13
Publication date: 2022-02-24
Also published as: CN114076460A

Abstract

Provided is a refrigerator having an increased bottom storage space volume. The refrigerator having the increased bottom storage space volume comprises: a refrigerator body having a bottom liner, the bottom liner defining a cooling chamber and a storage space, and the cooling chamber being located below the storage space; a refrigeration system, comprising an evaporator arranged in the cooling chamber and configured to provide cooling capacity to the storage space. The ratio of the volume of the storage space to the overall volume of the refrigerator body is greater than or equal to 15.1%. After significant structural optimization work, the present refrigerator satisfies requirements of normal operation and various performance indexes of a refrigerator, while also increasing the volume of the bottom storage space, and achieving effects of ultrathinness and large volume.

Description

A refrigerator with increased bottom storage space volume

technical field

The invention relates to household appliances, in particular to a refrigerator with an enlarged bottom storage space volume.

Background technique

Some refrigerator users have relatively high requirements for the space occupied by the refrigerator. The refrigerator needs to provide as large a usable volume as possible while occupying as little space as possible. Especially for built-in refrigerators that cooperate with integral cabinets, users put forward higher requirements for the space occupied by the refrigerators, for example, the refrigerators are required to be flush with the surface of the cabinets.

In view of the above space requirements, the front-rear dimension of the refrigerator (or referred to as the depth dimension) needs to be smaller than or equal to the depth dimension of the cabinet. In traditional refrigerators, since the evaporator is arranged on the back of the refrigerator and takes up a lot of depth space, it cannot meet the requirements of the depth dimension of the built-in refrigerator. That is to say, traditional refrigerators cannot meet the requirements of ultra-thin cabinets.

In view of the above problems, in the prior art, there is an evaporator bottom-mounted refrigerator, that is, the evaporator is arranged at the bottom of the box body, and the size of the refrigerator is indented in the front-rear direction. Generally speaking, the smaller the depth of the refrigerator box is, the utilization rate of the volume will be greatly reduced. The necessary thickness of the foam layer and the space occupied by the components of the refrigeration system are certain. The effective volume of the refrigerator continues to increase.

SUMMARY OF THE INVENTION

An object of the present invention is to provide a refrigerator with an enlarged bottom storage space volume.

A further object of the present invention is to make the refrigerator meet the requirements of occupied space and cooling capacity at the same time.

In particular, the present invention provides a refrigerator that increases the volume of the bottom storage space. The refrigerator for increasing the volume of the bottom storage space includes: a box body with a bottom inner tank, the bottom inner tank defines a cooling chamber and a storage space, and the cooling chamber is arranged below the storage space; The indoor evaporator is configured to provide cooling capacity to the storage space; and the ratio of the volume of the storage space to the overall volume of the tank is greater than or equal to 15.1%.

Optionally, the evaporator is disposed at the front of the cooling chamber obliquely from front to back; and the refrigerator further includes: an air supply assembly, disposed behind the evaporator, and the air supply assembly includes: a cooling fan, inclined upward from front to back It is arranged at the back of the evaporator and is configured to promote the formation of cooling airflow sent to the storage space through the evaporator, wherein the inclination angle of the evaporator is smaller than the inclination angle of the cooling fan; the air supply air duct is arranged on the rear wall of the bottom liner , and communicated with the air outlet of the cooling fan, at least one air supply port is opened on it, and the air supply port is used for connecting the air supply air duct and the storage space to transport the cooling airflow to the storage space.

Optionally, the cooling fan is a centrifugal fan, the air suction port of which faces upward and forward, and the air outlet is located at the rear end of the centrifugal fan and is connected to the lower end of the air supply air duct.

Optionally, the box body further includes: an upper cover of the evaporator, which is laterally arranged in the bottom inner tank and used to separate the cooling chamber and the storage space, and the upper cover of the evaporator includes: a first upper cover part, located on the top of the evaporator, It is arranged substantially horizontally, and the space between the first upper cover and the evaporator is filled with heat insulating material.

Optionally, the distance between the top of the front end of the evaporator and the first upper cover is set to be less than or equal to 62mm; the minimum distance between the evaporator and the first upper cover is set to be less than or equal to 40mm; The height of the bottom surface of the box is set to be less than or equal to 300mm.

Optionally, the upper cover of the evaporator further includes: a second upper cover part, which extends obliquely upward from the rear end of the first upper cover part, and is located on the upper part of the cooling fan; The inclination angles are the same, and the distance between the cooling fan and the second upper cover is set to be greater than or equal to 5 mm.

Optionally, the bottom wall of the bottom inner pot includes: a first support part, which is inclined downward from front to back from the front end of the bottom wall; The two sides are inclined upward, so that a water outlet is opened in the middle of the transverse direction, and the water outlet is used to discharge the water in the cooling chamber; the second support part is inclined upward from the front to the rear from the rear end of the water outlet, and the evaporator is placed on the second support part up, and the front end of the evaporator collides with the first support part, so that the water appearing on it gathers in the lower concave part, and the water outlet is located in the front part of the evaporator along the front and rear direction of the box; the third support part, from The rear end of the second support part is inclined upward from front to back; the cooling fan is fixed on the third support part.

Optionally, the height of the water outlet relative to the bottom surface of the box body is set to be less than or equal to 88 mm; the inclination angle of the lower concave portion is greater than or equal to 3°.

Optionally, the box body further includes: a compressor cabin, which is arranged at the lower and rear of the cooling chamber, and is configured to install a compressor and a condenser of the refrigerator; the top cover of the compressor cabin is spaced apart from the bottom wall of the bottom liner; and the refrigerator further includes : Evaporating dish, set in the compressor room; drain pipe, extending downward from the drain from front to back to the evaporating dish.

Optionally, the front part of the top cover of the compressor cabin is parallel to the third support part; the distance between the front part of the press cabin top cover and the third support part is set to be less than or equal to 20mm; the inclination angle of the drain pipe is greater than or equal to 5° and less than or equal to 15°.

Optionally, the rated cooling power or the maximum cooling power of the cooling system is set to be greater than or equal to 150W.

The ratio of the volume of the storage space of the refrigerator of the present invention to the overall volume of the box body is set to be greater than or equal to 15.1%. After a lot of structural optimization work, the refrigerator of the present invention meets the requirements of normal operation of the refrigerator and various performance indicators. The volume of the bottom storage space is increased, and the effect of ultra-thin and large volume is realized. Under the circumstance that the cooling chamber is arranged at the bottom of the inner tank and the structure is extremely compact, the volume ratio of the storage space of the inner tank at the bottom of the refrigerator meets the set requirements.

Further, in the refrigerator of the present invention, the evaporator is disposed obliquely in the cooling chamber, which breaks through the technical shackles in the prior art that the evaporator needs to be placed horizontally in order to reduce the longitudinal size. The centrifugal fan is also arranged obliquely behind the evaporator to promote the formation of refrigerated air flow to the storage compartment through the air supply air duct. Although the slanted placement of the evaporator will lead to an increase in the longitudinal height, the slanted placement of the evaporator makes the arrangement of other components in the cooling chamber more reasonable, and the actual airflow field analysis confirms that the air circulation efficiency is also higher, and the drainage is more comfortable.

Further, in the refrigerator of the present invention, the dimensions and relative positions of components such as the evaporator, the air supply assembly, the upper cover of the evaporator, the bottom wall of the bottom liner, the compressor compartment and the foam layer have been strictly demonstrated and calculated precisely, In the case of extremely strict size requirements, it meets the requirements of various performance indicators.

The above and other objects, advantages and features of the present invention will be more apparent to those skilled in the art from the following detailed description of the specific embodiments of the present invention in conjunction with the accompanying drawings.

Description of drawings

Hereinafter, some specific embodiments of the present invention will be described in detail by way of example and not limitation with reference to the accompanying drawings. The same reference numbers in the figures designate the same or similar parts or parts. It will be understood by those skilled in the art that the drawings are not necessarily drawn to scale. In the attached picture:

1 is a schematic front view of an evaporator bottom-mounted refrigerator according to an embodiment of the present invention

2 is a schematic front view of a box in a refrigerator according to an embodiment of the present invention;

Fig. 3 is a schematic perspective view of the box shown in Fig. 2;

4 is a schematic block diagram of a refrigerator according to an embodiment of the present invention;

Figure 5 is a schematic cross-sectional view taken along section line A-A in Figure 2 showing the longitudinal dimensions of the various components;

FIG. 6 is also a schematic cross-sectional view taken along section line A-A in FIG. 2, showing the front and rear depth dimensions of the various components;

Figure 7 is a schematic cross-sectional view taken along section line B-B in Figure 2;

8 is a cross-sectional top view of a bottom inner container in a refrigerator according to an embodiment of the present invention, showing the bottom upper surface of the bottom inner container;

FIG. 9 is a schematic longitudinal sectional view of a lower part of a box in a refrigerator according to an embodiment of the present invention;

10 is a schematic structural diagram of a door of a refrigerator according to an embodiment of the present invention after being closed; and

11 is an exploded view of an air supply assembly in an evaporator bottom-mounted refrigerator according to an embodiment of the present invention.

detailed description

In the description of this embodiment, it should be understood that the terms "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", The orientation or positional relationship indicated by "left", "right", "vertical", "horizontal", "top", "bottom", "depth", etc. is based on the orientation of the refrigerator in normal use as a reference, and refer to the appendix The orientation or positional relationship shown in the figure can be determined, for example, "front" indicating orientation refers to the side of the refrigerator facing the user. This is only to facilitate the description of the present invention and to simplify the description, rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as a limitation of the present invention.

1 is a schematic front view of an evaporator bottom-mounted refrigerator according to an embodiment of the present invention; FIG. 2 is a schematic front view of a box 100 in a refrigerator according to an embodiment of the present invention. FIG. 3 is a schematic perspective view of the case 100 shown in FIG. 1 . 2 and 3 mainly show the structure of the bottom portion of the case 100 .

The refrigerator of this embodiment may generally include a box body 100, and the box body 100 may include an outer shell, an inner tank, a heat insulation layer and other accessories. The outer shell is the outer structure of the refrigerator and protects the entire refrigerator. In order to isolate the heat conduction with the outside world, an insulating layer is added between the outer shell and the inner tank of the box body 100 , and the insulating layer is generally formed by a foaming process. There may be one or more inner liner, for example, according to the function, it can be divided into a refrigerated inner liner, a temperature-changing inner liner, a freezing inner liner, and the like.

A plurality of inner bladders can be arranged up and down, and the bottom inner bladder 101 is the inner bladder at the lowermost part. In this embodiment, the bottom inner container 101 defines a cooling chamber and a storage space 120 . The storage space 120 may be a space for storage at the bottom of the refrigerator. Generally, the bottom liner 101 is a freezing liner, and the storage space 120 constitutes a freezing compartment. Above the freezing compartment, a temperature-changing chamber defined by the temperature-changing inner container, a refrigerating chamber defined by the refrigerating inner container, and the like may also be configured as required. The number and function of the specific storage compartments can be configured according to the needs of the refrigerator. Since the components in the bottom liner 101 are the most complex and have the highest size requirements, the overall size of the other liner can be adjusted according to the size of the bottom liner 101 configuration. The front side of the box body 100 is also provided with a door body to open or close the storage compartment. In order to show the internal structure of the box body 100, the door body is hidden in the figure.

In the refrigerator of this embodiment, the ratio of the volume of the storage space 120 of the bottom inner liner 101 to the overall volume of the box body 100 is set to be greater than or equal to 15.1%, and may be set to be greater than or equal to 17.9% in some preferred embodiments, for example It is set to 17.9% to improve the space utilization efficiency of the storage space 120 . In a preferred embodiment, the volume of the box body 100 can be set to 992.2dm ³ , the volume of the storage space 120 is 178L, and the ratio of the volume of the storage space 120 to the overall volume of the box body 100 is 17.9%. The above arrangement improves the effective utilization rate of the storage space 120 under the condition that the space occupied by the box body 100 is guaranteed. The ratio of the volume of the storage space 120 to the overall volume of the box body 100 is a structural optimization made according to space requirements and refrigeration performance requirements, and has been verified by trial-produced products. In the case of reducing the size of the box, the volume of the storage space 120 can be guaranteed to remain unchanged to meet the volume requirements of the freezing compartment.

Above the bottom inner tank 101 , the evaporator bottom-mounted refrigerator may also have a plurality of inner tanks to form a refrigerating room, a changing room, and the like. The cabinet layout of the evaporator bottom-mounted refrigerator can be various, not limited to French refrigerators, T-shaped refrigerators, etc. In the refrigerator of this embodiment, the storage space 120 of the bottom inner container 101 is generally used as a freezing compartment. The above volume ratio can meet the volume requirements of the freezing compartment.

An evaporator upper cover 130 may be provided in the bottom inner tank 101 . The evaporator upper cover 130 is laterally disposed in the bottom inner tank 101 for separating the cooling chamber and the storage space 120 . The evaporator upper cover 130 simultaneously serves as the bottom wall of the storage space 120 and the top of the cooling chamber, and the storage space 120 above the storage space 120 is used for storing items.

In some optional embodiments, longitudinal partitions 140 may also be arranged in the bottom inner bladder 101 . The longitudinal partition 140 is disposed in the middle of the storage space 120, and divides the storage space 120 into two laterally arranged storage chambers. That is, the storage space 120 has two left and right storage cavities, and the two storage cavities can be respectively provided with door bodies to form a structure of two-sided doors. It should be noted that the configuration of the bottom liner 101 as a side-to-side door structure is only an optional embodiment, and those skilled in the art can configure the storage space 120 as a whole or other separation methods according to the specific functions of the refrigerator.

4 is a schematic block diagram of a refrigerator according to an embodiment of the present invention. The refrigeration system 300 may be a refrigeration cycle system composed of a compressor 310, a condenser 320, a throttling device 330, an evaporator 340, and the like. Evaporator 340 is configured to provide cooling directly or indirectly into storage space 120 . The refrigerator realizes the circulation of cooling air between the evaporator 340 and the storage compartment through the air duct system. Since the circulation structure and working principle of the refrigeration system itself are well known to those skilled in the art and are easy to implement, in order not to obscure and obscure the improvement points of the present application, the refrigeration system itself will not be described in detail below.

The air supply assembly 400 is used to form an air circulation between the cooling chamber and the storage space 120 , and may specifically include a cooling fan 410 and an air supply air duct 420 .

In order to meet the cooling demand of the refrigerator in the cooling system of this embodiment, the rated cooling power or the maximum cooling power of the cooling system is set to be not lower than the set power value. That is, the cooling capacity of the refrigeration system is not lower than the set power value, and the set power value can be set according to the cooling demand of the refrigerator volume, for example, it needs to meet the cooling requirements of medium and large refrigerators with a volume of more than 200L.

FIG. 5 is a schematic cross-sectional view taken along section line A-A in FIG. 2 , showing the longitudinal dimensions of the various components. 6 is also a schematic cross-sectional view taken along section line A-A in FIG. 2 showing the front and rear depth dimensions of the components; and FIG. 7 is a schematic cross-sectional view taken along section line B-B in FIG. 2 . In order to facilitate the illustration of specific components, the section lines are omitted in FIGS. 5 , 6 and 7 , and only the outlines of the components are retained.

The cooling chamber 110 is disposed below the storage space 120 for arranging the evaporator 340 and part of the air supply assembly 400 . Compared with the conventional refrigerator in which the evaporator 340 is arranged at the rear of the box body, in the refrigerator of the present embodiment, the evaporator 340 is arranged in the cooling chamber 110, on the one hand, the depth dimension (the distance in the front-rear direction) of the box body 100 is reduced, The depth dimension is used for the storage space 120 as much as possible; on the other hand, because the bottom of the storage space 120 is raised, it also avoids the inconvenience caused by the user needing to bend or squat to pick up and place items.

The depth dimension of the box body 100 of the refrigerator in this embodiment in the front-rear direction is set to be 480 mm to 560 mm, and can be further set to be about 510 mm. After a lot of structural optimization work, when the depth of the refrigerator in this embodiment is set to 480mm to 560mm, the cooling chamber 110 is equipped with a cooling system with rated cooling power or a maximum cooling power not lower than the set power value. The device 340 meets the requirements of normal operation and energy consumption standards of the refrigerator.

The evaporator 340 may have a flat rectangular parallelepiped shape as a whole. That is, the thickness dimension of the evaporator 340 perpendicular to the support surface is significantly smaller than the length dimension of the evaporator 340 . The evaporator 340 may be a finned evaporator, and the arrangement direction of the fins is parallel to the depth direction of the front and rear, which is convenient for the airflow to pass through from the front to the rear. In this embodiment, the evaporator 340 can also be set to other shapes as needed under the condition that the space requirements are met, and the flat rectangular parallelepiped-shaped evaporator 340 is a relatively compact and simple implementation manner.

In the refrigerator of the present invention, the evaporator 340 is disposed obliquely in the cooling chamber 110, which breaks through the technical shackles in the prior art that the evaporator 340 needs to be placed horizontally in order to reduce the depth dimension. The inclination angle α of the evaporator 340 may be set to be less than or equal to 7.5°, for example, set to 7.5°. Although the oblique placement of the evaporator 340 will increase the length in the front-rear direction, the oblique placement of the evaporator 340 makes the arrangement of other components in the cooling chamber 110 more reasonable, and the actual air flow field analysis confirms that the air circulation efficiency is also higher, and the drainage is also more comfortable. . The oblique arrangement of the evaporator 340 is one of the main technical improvements made in this embodiment.

In order to reduce the depth dimension in the front-rear direction, the refrigerator of this embodiment strictly sets the front-rear direction position and size of each component in the cooling chamber 110 , wherein the projection of the evaporator 340 in the horizontal direction is along the length in the front-rear direction. The proportion of the depth dimension of the box body 100 in the front-rear direction is less than 41%, and further can be set to less than 35%, for example, can be set to 29.8%. The depth dimension of the box body 100 in the front-rear direction refers to the entire horizontal length from the front end to the rear end. The size and arrangement of the above-mentioned evaporator 340 are structural optimizations based on space requirements and refrigeration performance requirements, and have been verified by trial-produced products.

The air supply assembly 400 of the refrigerator in this embodiment is disposed behind the evaporator 340 . The air supply assembly 400 may include a cooling fan 410 and an air supply air duct 420 . The cooling fan 410 is disposed obliquely behind the evaporator 340 , and its air suction port faces upward and forward, and is configured to promote the formation of a cooling airflow sent to the storage space 120 through the evaporator 340 .

The evaporator 340 may be generally disposed at the front of the cooling chamber 110 , and a cooling fan 410 may also be disposed behind the evaporator 340 .

The cooling fan 410 may be disposed at the rear of the evaporator 340 inclined upward from front to back, and is configured to promote the formation of a cooling airflow sent to the storage space 120 via the evaporator 340 . The angle of inclination of the cooling fan 410 may be greater than that of the evaporator 340 , so as to make room for the lower rear part of the bottom inner bladder 101 to form a compressor cabin.

The air supply duct 420 is disposed on the rear wall of the bottom inner container 101 and communicated with the air outlet of the cooling fan 410 , and at least one air supply port 421 is opened on it. The air supply port 421 is used for connecting the air supply air duct 420 and the storage space, so as to deliver the cooling airflow to the storage space 120 .

The cooling fan 410 can be selected from various fans, such as centrifugal fans, axial fans, and cross-flow fans, as required, which needs to meet the functional requirements of discharging the air in the area where the evaporator 340 is located into the air supply duct 420.

The cooling fan 410 may use a centrifugal fan. In the embodiment in which the centrifugal fan is used as the cooling fan 410, the centrifugal fan 410 is disposed at the rear of the evaporator 340 inclined upward from front to back, and includes a volute (not shown in the figure) and an impeller (not shown in the figure) disposed in the volute. Not shown), configured to promote the formation of a refrigerated airflow, and to provide circulatory power for the refrigerated airflow. The inclination angle β of the centrifugal fan 410 can be set to be less than or equal to 36.5°, for example, set to 36.5°. The volute includes the lower box body and the upper cover being fastened together, which is convenient for disassembly and assembly of the volute. The suction port of the centrifugal fan 410 is generally located in the center of the volute, and its height may be higher than the top of the evaporator 340 .

When using other types of fans, the specific exhaust ports and directions can be configured according to the air supply requirements, and will not be repeated here.

The air outlet of the cooling fan 410 is located on the rear side, and is arranged to send air obliquely rearward. The air supply air duct 420 communicates with the air outlet of the cooling fan 410 and extends upward, and is configured to deliver the cooling air flow to the storage space 120 . The rear wall of the storage space 120 is provided with an air supply port 421 that communicates with the air supply air duct 420 to discharge the cooling air into the storage space 120 . The thickness of the upwardly extending vertical section of the air supply duct 420 in the front-rear direction accounts for less than 10% of the depth dimension of the box 100 in the front-rear direction, and is further set to be less than 5.0%, for example, 4.9%.

The foam layer of the box body 100 is arranged on the outside of the cooling chamber 110 and the storage space 120, that is, on the outside of the bottom inner tank 101, and surrounds the bottom inner tank 101, and the thickness of the foam layer on the back of the storage space 120 accounts for The ratio of the depth dimension of the box body 100 in the front-rear direction is less than 12%, and further may be less than 11.5%, for example, it may be set to 11%. There is a contradiction between the thickness of the foamed layer and the thermal insulation performance. The thickness of the above-mentioned foam layer is a structural optimization made according to the space requirements and thermal insulation performance requirements, and the effect verification of the trial product is obtained.

The evaporator upper cover 130 is arranged laterally in the bottom inner tank 101 to separate the cooling chamber 110 from the storage space 120 ; the air return hood 131 is arranged at the front end of the evaporator upper cover 130 and serves as the front wall of the cooling chamber 110 The horizontal distance from the front end of the air return hood 131 to the front end of the box body 100 accounts for less than 8.2% of the depth dimension of the box body 100 in the front-rear direction, and can be set to be less than 5.0%, for example, can be set to 4.7%.

The return air hood 131 is formed with a front return air inlet 132 on the front side of the cooling chamber 110 that communicates with the storage space 120 , so that the return air flow of the storage space 120 enters the cooling chamber 110 through the front return air inlet 132 to communicate with the evaporator 340 Heat exchange is performed to complete the air circulation between the cooling chamber 110 and the storage space 120 . The above-mentioned distance between the air return hood 131 and the front of the box body 100 is a structural optimization made according to the space requirement and the air return performance requirement, and the effect verification of the trial product is obtained.

The upper cover 130 of the evaporator includes a first upper cover 1301 located at the top of the evaporator 340 and is arranged substantially horizontally, and its height relative to the bottom surface of the box 100 can be set to be less than or equal to 300mm, and further less than 200mm, such as 199mm. In the case where the depth dimension of the cooling chamber 110 is reduced, the volume of the storage space 120 is kept unchanged, and the utilization rate of the storage space 120 is improved. The above-mentioned setting of the first upper cover portion 1301 relative to the height of the bottom surface of the box body 100 is a structural optimization made according to space requirements, and the effect verification of the trial product is obtained. The height of the first upper cover portion 1301 relative to the ground is reduced to 223.5 mm, which also increases the effective utilization of the storage space 120 .

The space between the first upper cover part 1301 and the evaporator 340 is filled with heat insulating material, and the distance between the top of the front end of the evaporator 340 and the first upper cover part 1301 can be set to be less than or equal to 62 mm, and further can be set to be less than or equal to 62 mm. Equal to 40mm, eg 36mm. The minimum interval between the evaporator 340 and the first upper cover portion 1301 may be set to be less than or equal to 40 mm, and further may be set to be less than or equal to 20 mm, for example, 15 mm.

In the embodiment of the above preferred values, the thickest part of the thermal insulation material can be 36mm, and the thinnest part can be 15mm. On the premise of ensuring the thermal insulation performance, the thickness of the thermal insulation material is compressed to the thinnest. The above-mentioned distance between the evaporator 340 and the first upper cover 1301 and the distance between the front end of the evaporator 340 and the first upper cover 1301 are structural optimizations based on space requirements and thermal insulation performance requirements, and have been verified by trial products.

The above-mentioned inclined arrangement can also facilitate the formation of a certain frost-receiving space between the front of the top surface of the evaporator 340 and the first upper cover 1301 and the air return hood 131, so that a part of the air entering from the front air return port can be easily The frost space enters the evaporator 340 . The frost-receiving space changes the deflection angle of the original return air flow, so that the return air flow preferentially passes through the frost-receiving space with smaller flow resistance and then passes through the evaporator 340, which avoids the effect of frost on the air flow in the evaporator 340 and improves the heat exchange efficiency. , to further improve the refrigeration effect of the refrigerator.

In order to solve the problem of defrosting in the frost storage space, a top heating wire (not shown in the figure) may be provided at the front of the top surface of the evaporator 340, and the top heating wire is at least set at the front of the top surface of the evaporator 340. In some embodiments Among them, the top heating wire may be provided only at the front of the top surface of the evaporator 340 (or it may be described as the top heating wire may be provided only in the area of the frost holding space), which is convenient for the centralized defrosting of the heating wire arrangement. It can not only improve the defrosting effect, but also prevent the hot air from overflowing to the storage space 120 .

The evaporator upper cover 130 further includes a second upper cover portion 1302 which is formed to extend obliquely upward from the rear end of the first upper cover portion 1301 . The second upper cover part 1302 is located at the upper part of the cooling fan 410 , and the inclination angle can be set to be consistent with the inclination angle of the cooling fan 410 . The distance between the cooling fan 410 and the second upper cover portion 1302 is set to be greater than or equal to 5 mm, which meets the air intake requirement. The distance between the cooling fan 410 and the second upper cover portion 1302 is also set to be less than or equal to 30 mm, for example, can be set to 30 mm, so as to avoid taking up too much space. The height of the second upper cover 1302 can be set to be less than or equal to 93 mm, for example, set to 93 mm, so as to ensure the air suction space of the cooling fan 410 without affecting the cooling performance of the refrigerator. The space between the cooling fan 410 and the second upper cover 1302 and the height of the second upper cover 1302 are structural optimizations based on space requirements and cooling performance requirements, and have been verified by trial products.

8 is a cross-sectional top view of a bottom inner pot 101 in a refrigerator according to an embodiment of the present invention, which shows the bottom upper surface of the bottom inner pot 101; FIG. 9 is a lower part of a box in a refrigerator according to an embodiment of the present invention. Schematic diagram of longitudinal section.

The bottom wall of the bottom inner container 101 further includes a first support portion 1011 , a second support portion 1012 , a third support portion 1013 , and a concave portion 1014 .

The first support portion 1011 is inclined downward from the front to the rear from the front end of the bottom wall; the lower concave portion 1014 is disposed on the rear side of the first support portion 1011 and is configured to be inclined upward from the horizontal middle to both sides, so as to provide drainage in the horizontal middle mouth 103. The water outlet 103 is used to drain the water in the cooling chamber 110 .

The location of the drain port 103 is a region generally located in the middle of the lateral direction, and is not strictly required to be located in the region of the center of the lateral direction. In some embodiments, the drain 103 may be located at a position that is appropriately offset to one side in the lateral middle.

The second support portion 1012 is inclined upward from front to back from the rear end of the water outlet 103 , and the evaporator 340 is placed on the second support portion 1012 , and the front end of the evaporator 340 collides with the first support portion 1011 , so that the evaporator 340 is The water appearing on the 340 gathers in the lower recess 1014, and the water outlet 103 is located at the front of the evaporator 340 along the tank body in the front-rear direction.

The third support portion 1013 is inclined upward from front to rear from the rear end of the second support portion 1012 , and its inclination angle is greater than that of the second support portion 1012 ; the cooling fan 410 is fixed on the third support portion 1013 .

The height of the water outlet 103 relative to the bottom surface of the box body 100 can be set to be less than or equal to 88 mm, for example, set to 66 mm. The height of the position where the evaporator 340 abuts against the first support portion 1011 and the water outlet 103 may be set to be 22 mm. On the premise of ensuring the drainage angle, the height of the drainage port 103 is minimized. The height of the drain port 103 relative to the bottom surface of the box 100 and the height of the position where the evaporator 340 collides with the first support portion 1011 and the height of the drain port 103 are set based on the structural optimization according to the drainage performance requirements and space requirements, and The effect of the trial product has been verified. The third support portion 1013 is inclined upward from the front to the back of the second support portion 1012 for supporting the cooling fan 410 . The limit range of the inclination angle of the second support part 1012 may be set to 0° to 63°, and preferably may be set to 6° to 9°. The limit range of the inclination angle of the third support portion 1013 may be set to 0° to 90° (considering the use of various fans), and may preferably be set to 30° to 40° in the embodiment using a centrifugal fan. The inclination angle of the lower concave portion 1014 is greater than or equal to 3°, and further may be greater than or equal to 6°, for example, 7°. The inclination angle of the second support part 1012 and the inclination angle of the third support part 1013 are also the inclination angle of the evaporator 340 and the inclination angle of the cooling fan 410 , respectively. The inclination angle of the lower concave portion 1014 can ensure that the water is collected to the water outlet 103 .

The inclination angle of both sides of the lower concave portion 1014 may be greater than or equal to 3 degrees (preferably 7 degrees), so that the water on both sides converges toward the water outlet 103 . The structure of the concave portion 1014 can also reduce the distance between the evaporator 340 and the bottom wall of the bottom inner tank 101 as much as possible, so that the heat of the heating wire of the evaporator 340 can be transferred to the concave portion, so that the defrosting water can effectively flow into the drain 103. . The above-mentioned structure of the concave portion 1014 utilizes the heat of the heating wire 161 of the evaporator 340 to defrost, which prevents ice cubes from blocking the water outlet 103 and does not require additional heating wires at the water outlet 103 .

Using the structure of the lower concave portion 1014, a part of the inclined evaporator 340 can be suspended in the air, which is convenient for defrosting and drainage. Due to the inclined arrangement of the evaporator 340, the distance between the evaporator 340 and the water outlet 103 can also be reduced, which not only improves the space utilization rate of the refrigerator, but also ensures that the heating wire 161 on the evaporator 340 can perform heating on the area at the water outlet 103. heating, thereby reducing the risk of frost formation at the drain 103 .

The distance L14 from the evaporator 340 to the bottommost end of the lower concave portion 1014 is less than or equal to 50 mm, and more preferably, it can be set to be less than or equal to 25 mm.

The inclination angle of the second support portion 1012 can also facilitate the collection of water to the drainage port 103, thereby improving the smoothness of drainage. The proportion of the abutting part of the evaporator 340 and the second support part 1012 to the bottom surface of the evaporator 340 is greater than or equal to 0.6, for example, 2/3, 3/4, etc. can be set, so that the water outlet 103 can be located at the front of the evaporator 340. below. That is to say, the drain port 103 is located at the front of the evaporator 340 along the front-rear direction of the casing 100 .

In the refrigerator of this embodiment, by ensuring the fitting length between the bottom surface of the evaporator 340 and the second support portion 1012, the air does not flow into the evaporator 340 but flows through the space between the bottom surface of the evaporator 340 and the water outlet 103, thereby improving the performance of the refrigerator. The path length of the air flowing through the evaporator 340 is increased, and the heat exchange efficiency of the evaporator 340 is further improved.

The structure of the cooling chamber 110 and the inclined arrangement of the evaporator 340 and other components not only ensure the smooth and sufficient heat exchange of the airflow, but also reduce frost to a certain extent, and improve the defrosting and drainage efficiency.

Below the cooling chamber 110 is disposed a compressor room 150 for installing the compressor 310 and the condenser 320 of the refrigerator. The front part of the top cover 151 of the press cabin is parallel to the third support part 1013, which improves the fluidity of the foamed layer. In addition, the top cover 151 of the press cabin is spaced apart from the bottom wall of the bottom inner tank 101 . The distance between the front part of the press cabin top cover 151 and the third support part 1013 parallel to the third support part 1013 can be set to be greater than or equal to 20mm, and can be further set to be less than or equal to 50mm, for example, can be set to 45mm, which not only meets the thermal insulation performance requirements, but also meets the space requirements requirements. The above-mentioned setting of the distance between the front part of the press cabin roof 151 and the third support part 1013 in parallel is a structural optimization based on the requirements of space performance, and the effect of the trial product has been verified.

The compressor compartment 150 may also be fitted with an evaporating dish 191 . The evaporating dish 191 is arranged in the press room 150 ; the drain pipe 192 extends from the water outlet 103 to the evaporating dish 191 obliquely downward from the front to the rear. In some embodiments, the condenser 320 may be disposed above the evaporating dish 191 . A cooling fan (not shown in the figure) may also be arranged in the compressor cabin 150 to form a cooling airflow to dissipate heat to the condenser 320 and the compressor 310 .

In the solution of this embodiment, by arranging an evaporating dish 191 at the bottom of the compressor cabin 150 , the drain pipe 192 is inclined downward from the water outlet 103 from front to rear and extends downward to the evaporating dish 191 , so that the pair of evaporating dishes 191 flow out from the drain pipe 192 . The defrost water collected is collected, and then the defrost water in the evaporating dish 191 is evaporated by the heat generated in the condenser 320 . The inclination angle of the drain pipe 192 may be greater than or equal to 5° and less than or equal to 15°. For example, it can be set to 7°. In the solution of this embodiment, the inclination angle of the drain pipe 192 is set to be greater than or equal to 5° and less than or equal to 10°, thereby making the flow of the defrost water in the drain pipe 192 smoother, and at the same time ensuring that the drain pipe 192 will not be at a height Taking up too much space in the direction. The inclination angle of the above-mentioned drainage pipe 192 is structurally optimized according to drainage performance requirements and space requirements, and has been verified by the effect of trial products.

In other embodiments, a water pump may be added to the drainage part to actively pump the water to the evaporating dish 191 . In these embodiments, the inclination angle of the drain pipe 192 may not be limited.

A foam layer is provided on the outer side of the bottom liner 101 . The thickness of the foam layers on both sides of the bottom inner container 101 is set to be less than or equal to 65 mm. The overall width of the box body 100 is 905 mm, and the volume of the storage space 120 can be increased after the thickness of the foam layer is reduced. There is a contradiction between the thickness of the foamed layer and the thermal insulation performance. Reducing the thickness of the foam layer to 65mm is a structural optimization made according to the space requirements and thermal insulation performance requirements, and the effect of the trial product has been verified.

A foam layer may also be provided between the top cover 151 of the compressor cabin and the bottom inner tank 101 to prevent the heat of the compressor cabin 150 from affecting the freezing of the storage space 120 . Due to the limitation of the distance between the top cover 151 of the press cabin and the third support portion 1013, the thickness of the foam layers on both sides of the bottom inner bladder 101 is less than or equal to 45 mm. This is a structural optimization based on space requirements and thermal insulation performance requirements, and has been verified by the effect of trial products. The inclined structure of the third support portion 1013 may also provide a space for the placement of the press nacelle 150 .

The front side of the air return hood 131 is formed with two front air inlets 132 distributed up and down, which is not only visually pleasing, but also effectively prevents children's fingers or foreign objects from entering the cooling space; in addition, the two air return areas distributed up and down allow the return air to enter the cooling space. After cooling the space, it flows through the evaporator 340 more evenly, which can avoid the problem of easy frosting on the front surface of the evaporator 340 to a certain extent, which can not only improve the heat exchange efficiency, but also prolong the defrosting cycle, saving energy and high efficiency.

Due to the inclined arrangement of the evaporator 340 , a certain space can also be formed between the front top of the evaporator 340 , the air return hood 131 and the front of the evaporator upper cover 130 . This space area can be used as a frost-receiving space, and the return air area above the return air hood 131 can enter the evaporator 340 from the frost-receiving space, thereby reserving a part of the space for frost and reducing the damage to the inside of the evaporator 340 and the cooling fan 410 influence. Further, the evaporator 340 may be provided with a special defrosting device for the frost holding space. Moreover, the frost-receiving space also solves the problem that the front end of the evaporator 340 is easily frozen to a certain extent.

There can be two air return hoods 131 , which are distributed left and right along the lateral direction, and are separated by longitudinal partitions 140 . The longitudinal partition 140 is disposed in the middle of the storage space 120 to divide the storage space 120 into two laterally arranged storage chambers, and each storage chamber is provided with a return air hood 131 . The front part of the longitudinal partition 140 is provided with insulating vertical beams 141 . The thermal insulation vertical beam 141 is used to cooperate with the door body of the storage cavity to prevent cold energy from leaking from the edge of the door body.

The ratio of the thickness of the thermal insulation layer of the thermal insulation vertical beam 141 in the front-rear direction to the depth dimension of the box 100 in the front-rear direction is less than 15.7%, and may be less than or equal to 8.4%; and the front end of the evaporator 340 reaches the thermal insulation vertical beam 141 The ratio of the horizontal distance to the depth dimension of the box body 100 in the front-rear direction is less than 15.7%, and can be further set to be less than or equal to 7.7%. The thickness of the thermal insulation layer of the above-mentioned thermal insulation vertical beam 141 and the position relative to the evaporator 340 are structural optimizations made according to the space requirements and thermal insulation performance requirements, and the effect verification of the trial product is obtained.

In addition, in order to make the overall depth of the refrigerator meet the requirements, the rear end of the door body can be set to be less than or equal to 62 mm. FIG. 10 is a schematic structural diagram of the door body 200 of the refrigerator 10 after being closed according to an embodiment of the present invention. After the door body 200 is closed and the storage space 120 is closed, the overall depth dimension of the refrigerator 10 (the overall thickness in the front-rear direction) can be less than or equal to 572 mm, so as to meet the size requirement for matching with the cabinet.

In the following, a specific embodiment of a refrigerator with a depth dimension of the box body 100 of 510 mm will be introduced in conjunction with the dimensions marked in Figures 2, 5, 6, 7, and 10. The box body volume of the refrigerator 10 in this embodiment can be To the same volume as a conventional 550mm box, it is enough to reflect the efficiency of space use.

The overall depth dimension L12 of the box body 100 is 510 mm, and the thickness L11 of the door body 200 is set to 62 mm. As a result, the overall thickness of the refrigerator is only 572mm. The bottom-mounted refrigeration module includes an evaporator upper cover 130 , an evaporator 340 , a cooling fan 410 , a compressor room 150 and equipment in the compressor room 150 . The overall height H1 of the bottom-mounted refrigeration module relative to the bottom surface is 316.1 mm, and the height H4 of the bottom surface of the box 100 relative to the bottom surface is 24.5 mm, so that the overall height of the bottom-mounted refrigeration module is only 291.6 mm.

The depth dimension L9 of the evaporator 340 in the refrigerator 10 is 152 mm, the longitudinal dimension L10 is 75 mm, the left and right lateral dimensions (not marked) are 470 mm, and the longitudinal height H7 is 75 mm. The inclination angle α of the evaporator 340 with respect to the horizontal plane may be 7.5 degrees. The inclination angle of the bottom wall portion of the bottom inner pot 101 supporting the evaporator 340 with respect to the horizontal plane is also correspondingly set to 7.5 degrees.

Due to the inclined arrangement of the evaporator 340, the length L3 of the projection in the horizontal direction along the front-rear direction is 162 mm. Although the length in the front-rear direction is increased, the inclination of the evaporator 340 makes the arrangement of other components in the cooling chamber 110 more reasonable, and the actual airflow passes through. Flow field analysis confirmed that the air circulation is also more efficient and drainage is more comfortable. At the same time, the inclined arrangement of the evaporator 340 can also prevent the evaporator 340 from being too close to the insulating vertical beam 141 , causing frost to block the air return port.

The cooling fan 410 is also arranged obliquely, and its inclination angle β relative to the horizontal plane can be 36.7 degrees.

From front to back, the dimensions and relative relationships of the components in the cooling chamber 110 and the storage space 120 are set as follows: the horizontal distance L8 from the front end of the air return hood 131 to the front end of the box 100 is 24 mm. The thickness L1 of the heat insulating layer of the heat insulating vertical beam 141 in the front-rear direction was set to 42 mm. The horizontal distance L4 from the front end of the cooling fan 410 to the evaporator 340 is 22 mm, so as to save the depth distance between the evaporator 340 and the fan 410 to the greatest extent under the condition that the blades of the cooling fan 410 are not frosted. The thickness L6 of the upwardly extending vertical section of the air supply duct 420 in the front-rear direction is 25 mm. Therefore, it can be ensured that the length L5 of the projection of the wind assembly in the horizontal direction along the front-rear direction is 200 mm. The thickness L7 of the foam layer on the back of the storage space 120 is 56 mm. The thickness L13 of the foam layers on both sides of the storage space 120 is 65 mm.

Correspondingly, it can be concluded that L8 is 4.7% of L12, L6 is 4.9% of L12, L1 is 8.2% of L12, L2 is 7.5% of L12, L3 is 29.8% of L12, L4 is 4.3% of L12, and L5 is 39.2% of L12 and 11% of L12 for L7. The above-mentioned dimensions, relative positions and proportional relationships are all completed on the basis of strict demonstration and precise calculation. In the case of extremely strict size requirements, the requirements of various performance indicators are met. The above dimensions and relative positions cooperate with each other to realize the corresponding functions together. Any of the above-mentioned changes in size and relative position may cause the refrigerator 10 to fail to meet the performance requirements in a certain aspect, or even cause the function to fail to achieve.

From top to bottom, the heights and relative relationships of the components in the cooling chamber 110 and the storage space 120 are set, for example, the height H1 of the entire bottom-mounted refrigeration module relative to the ground is 316.1 mm. The height H10 of the second upper cover portion 1302 of the evaporator upper cover 130 is 93 mm. The height H2 of the first upper cover portion 1301 relative to the bottom surface of the box body 100 is 223.5 mm. The height H2 of the first upper cover portion 1301 relative to the ground is 233.5 mm. The distance H8 between the first upper cover portion 1301 and the top of the front end of the evaporator 340 is 36 mm. The height H3 of the first upper cover portion 1301 relative to the bottom surface of the box body 100 is 199 mm. The minimum interval H9 between the evaporator 340 and the evaporator upper cover 130 is 15 mm. The height H6 of the position where the evaporator 340 abuts against the first support portion 1011 and the water outlet 103 is 22 mm. The height H5 of the drain port 103 relative to the bottom surface of the box body 100 is 66 mm. The above dimensions and relative positions are all completed on the basis of strict demonstration and precise calculation, and meet the requirements of various performance indicators under extremely strict size requirements. The above dimensions and relative positions cooperate with each other to realize the corresponding functions together. Any of the above-mentioned changes in size and relative position may cause the refrigerator 10 to fail to meet the performance requirements in a certain aspect, or even cause the function to fail to achieve. The volume of the box body 100 in this embodiment is 992.2 dm ³ , the volume of the storage space 120 is 178L, and the ratio of the volume of the storage space 120 to the overall volume of the box body 100 reaches 17.9%.

Those skilled in the art should understand that the above-mentioned specific values may have certain assembly and processing errors.

11 is an exploded view of an air supply assembly 400 in an evaporator bottom-mounted refrigerator according to an embodiment of the present invention. The air supply air duct 420 may be jointly defined by the air duct back plate 422 and the rear wall of the bottom inner container 101 . The air duct back plate 422 is disposed in front of the rear wall of the bottom inner pot 101 , and is substantially parallel to the rear wall of the bottom inner pot 101 . The air supply port 421 is opened on the air duct back plate 422 .

The centrifugal fan 410 may include a volute and an impeller 411 . The volute is disposed at the rear of the cooling chamber 110 obliquely from front to rear, and the impeller 411 is disposed in the volute, and its axis is opposite to the air suction port 412 .

The centrifugal fan 410 can discharge the airflow from the air suction port 412 in the radial direction, and the cooling airflow discharged into the air supply air duct 420 can be discharged into the storage space 120 from the air supply port 421 to exchange with the hot air in the storage space 120 heat, reducing the temperature of the storage space 120 . The air in the storage space 120 can be returned to the cooling chamber 110 through the front return air inlet 132 on the return air hood 131, thereby forming a circulating airflow path.

In some embodiments, the volute includes a fan bottom casing 424 and a fan upper cover 423 . The fan bottom case 424 is fixed to the rear of the bottom wall of the bottom inner pot 101 , that is, to the third support portion 1013 . The upper cover 423 of the fan is inclined and protrudes downward into the cooling chamber 110 from the lower end of the air duct back plate 422, and is buckled on the bottom case 424 of the fan. The air suction port 412 is opened at the central position of the upper cover 423 of the fan. After the fan bottom case 424 is connected with the fan upper cover 423 , it can also extend downward into the cooling chamber 110 obliquely, and an air outlet is formed at the position where the rear end of the fan bottom case 424 is connected to the air duct back plate 422 . The fan bottom case 424 and the fan upper cover 423 can be connected together in the form of snap connection.

The upper cover 423 of the fan and the back plate 422 of the air duct can also be formed as an integral part. This way is different from the fan structure in the prior art. In the prior art, the fan volute and the air duct plate are generally independent components, and during assembly, the installer generally needs to install them separately. This will result in complicated installation process and increased cost, which is not conducive to mass production. In this embodiment, the air duct back plate 422 and the fan upper cover 423 are integrally formed. During installation, the fan upper cover 423 is directly installed into the cooling chamber 110 and connected to the fan bottom case 424, which not only simplifies the installation process, but also reduces the cost, and can make the structure of the entire air supply air duct 420 more stable.

By now, those skilled in the art will recognize that although various exemplary embodiments of the present invention have been shown and described in detail herein, the present invention may still be implemented in accordance with the present disclosure without departing from the spirit and scope of the present invention. The content directly determines or derives many other variations or modifications consistent with the principles of the invention. Accordingly, the scope of the present invention should be understood and deemed to cover all such other variations or modifications.

Claims

A refrigerator with an enlarged bottom storage space, comprising:

The box body has a bottom inner tank, the bottom inner tank defines a cooling chamber and a storage space, and the cooling chamber is arranged below the storage space;

a refrigeration system including an evaporator disposed within the cooling chamber and configured to provide refrigeration to the storage space; and

The ratio of the volume of the storage space to the overall volume of the box is greater than or equal to 15.1%.
The refrigerator of claim 1, wherein

The evaporator is disposed at the front of the cooling chamber obliquely upward from front to back; and the refrigerator further includes:

The air supply assembly is arranged behind the evaporator, and the air supply assembly includes:

A cooling fan is disposed at the rear of the evaporator inclined upward from front to back, and is configured to promote the formation of a cooling air flow sent to the storage space via the evaporator, wherein the inclination angle of the evaporator is smaller than the inclination angle of the evaporator The inclination angle of the cooling fan;

The air supply duct is arranged on the rear wall of the bottom inner tank and communicated with the air outlet of the refrigeration fan, and at least one air supply port is opened on it, and the air supply port is used to communicate with the air supply air duct and the storage space, so as to deliver the cooling airflow to the storage space.
The refrigerator according to claim 2, wherein

The refrigerating fan is a centrifugal fan, and its air suction port faces the front and upper side, and its air outlet is located at the rear end of the centrifugal fan, and is connected with the lower end of the air supply air duct.
The refrigerator according to claim 2, wherein the box body further comprises:

The upper cover of the evaporator is laterally arranged in the bottom inner tank, and is used to separate the cooling chamber and the storage space, and the upper cover of the evaporator includes:

The first upper cover part is located at the top of the evaporator and is arranged substantially horizontally, and the space between the first upper cover part and the evaporator is filled with insulating material.
The refrigerator of claim 4, wherein

The distance between the top of the front end of the evaporator and the first upper cover is set to be less than or equal to 62mm;

The minimum interval between the evaporator and the first upper cover is set to be less than or equal to 40mm;

The height of the first upper cover part relative to the bottom surface of the box body is set to be less than or equal to 300 mm.
The refrigerator according to claim 4, wherein the evaporator upper cover further comprises:

The second upper cover part extends upwardly obliquely from the rear end of the first upper cover part, and is located on the upper part of the cooling fan, and the inclination angle of the second upper cover part is set to be consistent with the inclination angle of the cooling fan , and the distance between the cooling fan and the second upper cover is set to be greater than or equal to 5mm.
The refrigerator according to claim 4, wherein the bottom wall of the bottom inner container comprises:

the first support part is inclined downward from front to rear from the front end of the bottom wall;

the lower concave part is arranged on the rear side of the first support part, and is configured to be inclined upward from the horizontal middle part to both sides, so as to open a water outlet in the horizontal middle part, and the water outlet is used to discharge the water in the cooling chamber;

The second support part is inclined upward from front to back from the rear end of the water outlet, and the evaporator is placed on the second support part, and the front end of the evaporator is in conflict with the first support part , so that the water appearing thereon gathers in the lower concave part, and the water outlet is located in the front part of the evaporator along the position of the tank body in the front-rear direction;

The third support portion is inclined upward from the rear end of the second support portion from front to back, and the cooling fan is fixed on the third support portion.
The refrigerator according to claim 7, wherein,

The height of the water outlet relative to the bottom surface of the box is set to be less than or equal to 88mm;

The inclination angle of the lower concave portion is greater than or equal to 3°.
The refrigerator according to claim 7, wherein the box body further comprises:

A compressor cabin is arranged at the lower rear of the cooling chamber, and is configured to install a compressor and a condenser of the refrigerator; the top cover of the compressor cabin is spaced apart from the bottom wall of the bottom liner; and the refrigerator is also include:

an evaporating dish, arranged in the press room;

The drain pipe is inclined downward from the drain port from front to rear and extends to the evaporating dish.
The refrigerator of claim 9, wherein

the front portion of the press room roof is parallel to the third support portion;

The distance between the front part of the press room top cover and the third support part in parallel is set to be greater than or equal to 20mm;

The inclination angle of the drain pipe is greater than or equal to 5° and less than or equal to 15°.