WO2024002087A1

WO2024002087A1 - Refrigerator

Info

Publication number: WO2024002087A1
Application number: PCT/CN2023/102844
Authority: WO
Inventors: 姬立胜; 陈建全; 夏恩品; 刘阳; 刘昀曦
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: 2022-06-29
Filing date: 2023-06-27
Publication date: 2024-01-04
Also published as: CN218348953U

Abstract

Provided is a refrigerator. The refrigerator comprises a refrigerator body and a compressor chamber; a bottom space is formed between the bottom of the refrigerator body and the ground; the compressor chamber is arranged at the bottom of a rear side of the refrigerator body; a bottom air inlet portion and a bottom air outlet portion are formed in the bottom of the compressor chamber, so as to facilitate air in the bottom space entering into the compressor chamber from the bottom air inlet portion, and air being discharged into the bottom space by means of the bottom air outlet portion. The compressor chamber of the present refrigerator utilizes a bottom heat dissipation means, which can effectively improve the ventilation efficiency of a heat dissipation airflow, improving a heat dissipation effect of the compressor chamber, which is more advantageous for environments in which built-in refrigerators are used.

Description

refrigerator

Technical field

The present invention relates to the heat dissipation technology of a refrigerator, and in particular to a refrigerator.

Background technique

Since the built-in refrigerator needs to be embedded in the cabinet when in use, the space between each surface of the refrigerator and the built-in cabinet is extremely limited. This results in the original rear side heat dissipation method of the refrigerator being unable to meet the heat dissipation needs, causing a problem in the compressor cabin. As the temperature rises, the heat dissipation conditions of the compressor and condenser deteriorate, the cooling capacity decreases, and the energy consumption increases.

Contents of the invention

An object of the present invention is to overcome at least one drawback of the prior art and provide a refrigerator.

A further object of the invention is to achieve bottom heat dissipation in the compressor cabin.

A further object of the invention is to improve the ventilation of the compressor cabin.

Another further object of the present invention is to realize air inlet and air outlet from the front of the refrigerator, and to improve the ventilation of the air inlet and air outlet.

In particular, the present invention provides a refrigerator, which includes: a box body with a bottom space formed between the bottom and the ground; and a compressor cabin arranged at the rear bottom of the box body. The bottom of the compressor cabin is provided with a bottom air inlet and a bottom air inlet. The bottom air outlet is so that the air in the bottom space enters the compressor cabin from the bottom air inlet and is discharged into the bottom space through the bottom air outlet.

Optionally, the bottom air inlet part and the bottom air outlet part are arranged along the transverse direction of the compressor cabin; and, the refrigerator also includes: a refrigeration system, the refrigeration system includes a compressor and a condenser connected in series in the refrigerant flow path, the compressor and the condenser. The compressors are all installed in the compressor cabin, and the compressor is between the bottom air inlet and the bottom air outlet, and the condenser is between the bottom air inlet and the bottom air outlet; the cooling fan is installed in the compressor cabin. It is between the bottom air inlet part and the bottom air outlet part to promote the formation of heat dissipation airflow that enters the compressor cabin from the bottom air inlet part and is discharged from the bottom air outlet part.

Optionally, in the direction from the bottom air inlet to the bottom air outlet, the cooling fan, condenser and compressor are arranged in sequence at intervals.

Optionally, the condenser is flat and square as a whole, and the two wider sides of the condenser are respectively facing the outlet side of the cooling fan and the compressor.

Optionally, the condenser is cylindrical as a whole, and has a hollow channel extending along its axial direction, with both axial ends of the hollow channel facing the outlet side of the cooling fan and the compressor respectively.

Optionally, the ratio between the barrel wall thickness of the condenser and the radius of the hollow channel is between 0.1 and 0.5.

Optionally, the cooling fan has a fan frame and a plurality of fan blades arranged inside the fan frame; and the ventilation area of the fan frame is set to be no less than the area of the hollow channel.

Optionally, the refrigerator further includes: an evaporation dish, which is arranged in the compressor cabin, below the condenser, and the bottom of the condenser is sealedly connected to the evaporation dish.

Optionally, the cooling fan is set in the evaporation dish; and the evaporation dish is set at the suction side of the cooling fan The air guide is used to guide the air entering the compressor cabin from the bottom air inlet to the suction side of the cooling fan.

Optionally, the refrigerator further includes: a wind shield, which is disposed in the bottom space and is located between the bottom air inlet part and the bottom air outlet part, so as to divide the bottom space into an air inlet channel connected to the bottom air inlet part and a connected bottom air outlet part. The air outlet channel inside.

Optionally, the windshielding member is a long windshielding rod; and the windshielding member is configured to extend from front to back and in a direction close to the bottom air inlet.

Optionally, the windshield also includes: a first section, the front end of the first section is at the front edge of the box and extends rearward; a second section, the front end of the second section is connected to the first section the rear end, and extends from front to back and in a direction close to the bottom air inlet.

Optionally, the height of the windshield is set to be no greater than the height of the bottom space.

Optionally, the compressor cabin includes a bottom steel, two side plates located on both sides of the bottom steel, a back plate located on the rear side of the bottom steel, and a cover plate located above the bottom steel; both a bottom air inlet part and a bottom air outlet part are provided Yu bottom steel.

Optionally, the bottom air inlet portion includes a plurality of bottom air inlets opened on the bottom steel, each bottom air inlet hole is elongated, and the plurality of bottom air inlet holes are arranged in an array; and/or, The bottom air inlet part includes a plurality of bottom air inlets opened on the bottom steel. Each bottom air inlet hole is elongated, and the plurality of bottom air inlet holes are arranged in an array.

In the refrigerator of the present invention, a bottom space is formed between the bottom of the box and the ground under the support of the bottom feet. The bottom of the compressor cabin is provided with a bottom air inlet and a bottom air outlet. The air in the bottom space enters through the bottom air inlet. The compressor compartment is discharged into the bottom space through the bottom air outlet. When the refrigerator is embedded in a cabinet, the circulation between the bottom space of the refrigerator and the surrounding environment is better than that of the sides of the refrigerator. Dissipating heat to the bottom can effectively improve the ventilation of the heat dissipation airflow. efficiency and improve the heat dissipation effect of the compressor cabin.

Further, in the refrigerator of the present invention, the bottom air inlet part and the bottom air outlet part are arranged along the transverse direction of the compressor cabin, and the compressor, condenser and cooling fan are all located between the bottom air inlet part and the bottom air outlet part, and are located between the bottom air inlet part and the bottom air outlet part. In the direction from the bottom air inlet to the bottom air outlet, the cooling fan, condenser and compressor can also be arranged at intervals. That is to say, the condenser and compressor are both located downstream of the cooling fan, so it can prevent the loss of circulating air volume due to dust accumulation in the condenser upstream of the cooling fan, and improve the ventilation of the compressor cabin.

Further, in the refrigerator of the present invention, the windshield is arranged in the bottom space, between the bottom air inlet and the bottom air outlet, so as to divide the bottom space into an air inlet channel connected to the bottom air inlet and a bottom air outlet. air outlet channel. The windshield divides the bottom space into an air inlet channel connected to the bottom air inlet and an air outlet channel connected to the bottom air outlet. This can ensure that the air inlet and outlet of the bottom space do not cross each other, ensuring the air inlet efficiency and air outlet. Wind efficiency. Since the bottom space of the box is usually open to the front, the air inlet channel and the air outlet channel are also open to the front. Under the action of the cooling air flow, the air in front of the bottom space (in front of the refrigerator) can enter through the air inlet channel. The bottom space then enters the compressor cabin from the bottom air inlet part, and then is discharged from the bottom air outlet to the air inlet and outlet channel after exchanging heat with the condenser and compressor, and then discharges forward from the air outlet channel to the front of the bottom space (the refrigerator front), forming a loop.

From the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will further understand the above and other objects, advantages and features of the present invention.

Description of drawings

Some specific implementations of the present invention will be described in detail below by way of illustration and not limitation with reference to the accompanying drawings. example. The same reference numbers in the drawings identify the same or similar parts or portions. Those skilled in the art will appreciate that these drawings are not necessarily drawn to scale. In the attached picture:

Figure 1 is a schematic diagram of a refrigerator according to an embodiment of the present invention;

Figure 2 is a schematic diagram of a refrigeration system in a refrigerator according to one embodiment of the present invention;

Figure 3 is a partial schematic diagram of a refrigerator according to an embodiment of the present invention, which shows the compressor cabin at the rear bottom of the refrigerator and some components provided in the compressor cabin;

Figure 4 is an exploded view of some components of the refrigerator according to one embodiment of the present invention;

Figure 5 is a schematic perspective view of a refrigerator from an upward angle according to one embodiment of the present invention;

Fig. 6 is a schematic perspective view of a refrigerator from an upward angle according to another embodiment of the present invention;

Figure 7 is a schematic diagram of a condenser in a refrigerator according to another embodiment of the present invention.

Detailed ways

In the description of this embodiment, it should be understood that the terms "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", The orientation or positioning relationships indicated by "left", "right", "vertical", "horizontal", "top", "bottom", "depth", etc. are based on the orientation under normal use as a reference, and refer to the attached drawings The orientation or positional relationship shown may be determined, for example, "front" indicating the orientation refers to the side facing the user. This is only to facilitate the description of the present invention and simplify the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the present invention.

Referring to Figure 1, Figure 1 is a schematic diagram of a refrigerator 1 according to an embodiment of the present invention. The present invention provides a refrigerator 1, which is suitable for use alone or embedded in a cabinet. Generally, the refrigerator 1 may include a box body 10 and a door body 20 .

The box body 10 may include an outer shell and a plurality of inner pots. The outer shell is located at the outermost side of the entire refrigerator 1 to protect the entire refrigerator 1 . Multiple inner bladders are wrapped by the outer shell, and the spaces between the multiple inner bladders and the outer shell are filled with thermal insulation materials (forming an insulation layer) to reduce outward heat dissipation from the inner bladders. Each inner bag can define a storage space that opens forward, and the storage space can be configured as a refrigerator, a freezer, a changing room, etc. The number and functions of the specific storage spaces can be configured according to pre-existing needs.

The number of doors 20 can also be consistent with the number of inner containers, that is, each storage compartment with the inner container opening forward can be opened and closed by its corresponding door 20 . The door 20 is movably disposed in front of the box 10. For example, the door 20 can be hingedly disposed on one side of the front of the box 10, and can open and close the storage space in a pivoting manner.

Referring to Figure 2, Figure 2 is a schematic diagram of the refrigeration cycle system 20 in the refrigerator 1 according to one embodiment of the present invention. In some embodiments, the refrigerator 1 may further include a circulation refrigeration system 3030 for providing cold energy to the storage compartments. The cycle refrigeration system 3030 may also include a compressor 31, a condenser 32, a dew removal pipe 33, a throttling device 34, an evaporator 35, etc. in the refrigerant flow path.

As the power of the refrigeration system 30, the compressor 31 increases the pressure and temperature of the refrigerant vapor through compression, creating conditions for transferring the heat of the refrigerant vapor to the external environment medium, that is, compressing the low-temperature and low-pressure refrigerant vapor to a high-temperature and high-pressure state. In order to use normal temperature air or water as the cooling medium to condense the refrigerant vapor.

The condenser 32 is a heat exchange device that uses the environment to take away the heat of the high-temperature and high-pressure refrigeration vapor from the compressor 31, so that the high-temperature and high-pressure refrigerant vapor is cooled and condensed into high-pressure and normal-temperature refrigerant liquid.

The dew removal pipe 33 is connected to the outlet of the condenser 32. Since the refrigerant at the outlet of the condenser 32 is at normal temperature, the refrigerant here is at a high temperature relative to the storage compartment. Therefore, when the refrigerant passes through the dew removal pipe 33 Surrounding parts can be heated to prevent frost formation. Specifically, the dew removal pipe 33 may be provided at a location in the box 10 that needs to be heated to remove dew, such as inside the center beam of the refrigerator 1 .

The throttling device 34 (which can be a capillary tube) can be connected in series to the outlet of the condenser 32 to reduce the pressure of the refrigerant liquid and the temperature of the refrigerant liquid, so that the high-pressure and normal-temperature refrigerant liquid discharged from the condenser 32 becomes low temperature. The low-pressure refrigerant is thus discharged into the evaporator 35 to undergo phase change and absorb heat.

The evaporator 35 may be disposed in the box 10 to directly or indirectly provide cooling energy to the storage compartment of the refrigerator 1 . For example, in the compression direct-cooling refrigerator 1, the evaporator 35 can be disposed outside or inside the rear wall surface of the inner pot. In the compressed air-cooled refrigerator 1, there is also an evaporator chamber in the box 10. The evaporator chamber is connected to the storage room through an air duct system, and an evaporator 35 is provided in the evaporator room, and a fan is provided at the outlet to supply the storage space to the storage room. Circulating refrigeration is carried out in the object room.

Referring to Figures 3 to 6, Figure 3 is a partial schematic diagram of the refrigerator 1 according to one embodiment of the present invention, which shows the compressor chamber 50 at the rear bottom of the refrigerator 1 and some components arranged in the compressor chamber 50. Figure 4 is a partial schematic diagram of the refrigerator 1 according to an embodiment of the present invention. An exploded view of some components of the refrigerator 1 according to one embodiment of the present invention. Figure 5 is a schematic perspective view of the refrigerator 1 from an upward angle according to one embodiment of the present invention. Figure 6 is an exploded view of the refrigerator 1 according to another embodiment of the present invention. Schematic perspective view from above.

A compressor cabin 50 is provided at the rear bottom of the box 10 of the refrigerator 1 , and the compressor 31 and the condenser 32 are disposed in the compressor cabin 50 . Since the compressor 31 generates heat during operation, the condenser 32 needs to cool the high-temperature refrigerant discharged from the compressor 31 in time, and therefore needs to dissipate heat from the compressor cabin 50 . A cooling fan 40 can also be provided in the compressor cabin 50. The cooling fan 40 sucks air from outside the compressor cabin 50 into it and exchanges heat with the compressor 31 and the condenser 32. The heat dissipation airflow after heat exchange is discharged from the compressor cabin 50 to remove the heat. Take out the compressor cabin 50.

In some embodiments, the box 10 has a bottom space between its bottom and the ground under the support of the feet. A bottom air inlet 501 and a bottom air outlet 502 are provided at the bottom of the compressor cabin 50 so that the air in the bottom space enters the compressor cabin 50 through the bottom air inlet 501 and is discharged into the bottom space through the bottom air outlet 502.

That is to say, in this embodiment, the heat dissipation airflow of the compressor cabin 50 enters the compressor cabin 50 from the bottom space through the bottom air inlet part 501 to exchange heat with the condenser 32 and the compressor cabin 50, and then is discharged downward through the bottom air outlet part 502. Towards the bottom space. When the refrigerator 1 is embedded in a cabinet, the circulation between the bottom space of the refrigerator 1 and the surrounding environment is better than that of the side of the refrigerator 1. Therefore, dissipating heat to the bottom can effectively improve the ventilation efficiency of the heat dissipation airflow and improve the heat dissipation effect of the compressor cabin 50 , which is more conducive to the use environment of the built-in refrigerator 1.

Referring to FIGS. 3 to 6 , in some embodiments, the bottom air inlet part 501 and the bottom air outlet part 502 are disposed along the transverse direction of the compressor cabin 50 . The compressor 31 , the condenser 32 and the cooling fan 40 are all located between the bottom air inlet part 501 and the bottom air outlet part 502 .

The air suction side of the cooling fan 40 can be close to the side of the bottom air inlet 501 , and the air outlet side can be close to the side of the bottom air outlet 502 . In this way, after the cooling fan 40 is started, the cooling fan 40 can cause the air in the bottom space to enter the compressor cabin 50 through the bottom air inlet 501, then flow through the compressor 31 and the condenser 32 and then be discharged again through the bottom air outlet 502. in the bottom space.

In some specific embodiments, in the direction from the bottom air inlet part 501 to the bottom air outlet part 502, the condenser 32, the cooling fan 40 and the compressor 31 may be arranged at intervals in sequence. That is to say, the condenser 32 is located between the cooling fan 40 and the bottom air inlet 501, which is conducive to all the cooling airflow entering the compressor cabin 50 passing through the condenser 32 and preferentially exchanging heat with the condenser 32, thereby improving the heat dissipation efficiency of the condenser 32. .

Referring to FIGS. 3 to 6 , in some other specific embodiments, the cooling fan 40 , the condenser 32 and the compressor 31 can also be arranged at intervals in the direction from the bottom air inlet 501 to the bottom air outlet 502 . .

That is, both the condenser 32 and the compressor 31 are located downstream of the cooling fan 40 . Compared with the layout of the condenser 32, the cooling fan 40 and the compressor 31 in the above embodiment, the layout of the condenser 32, the compressor 31 and the cooling fan 40 in this embodiment prevents the condenser 32 upstream of the cooling fan 40 from being 32 accumulates dust and causes a loss of circulating air volume, thereby improving the ventilation of the compressor cabin 50 .

Referring to Figures 3 and 4, in some embodiments, the condenser 32 is flat and square as a whole, and the two wider sides of the condenser 32 are respectively facing the air outlet side of the cooling fan 40 and the compressor 31.

The condenser 32 may be a parallel flow microchannel condenser 32, including a flat tube and a plurality of heat dissipation fins. The flat tubes can be coiled along an S shape, and a plurality of heat dissipation fins are arranged between adjacent coiled flat tubes, and micropores are formed between two adjacent heat dissipation fins. The condenser 32 can be arranged such that the penetrating direction of each micro hole is parallel to the air outlet side of the cooling fan 40 , which facilitates the heat dissipation airflow to pass through the condenser 32 from the plurality of micro holes.

Referring to Figure 7, Figure 7 is a schematic diagram of the condenser 32 in the refrigerator 1 according to another embodiment of the present invention. In some embodiments, the condenser 32 is cylindrical as a whole, and has a hollow passage 322 extending along its axial direction. The two axial ends of the hollow passage 322 are respectively facing the air outlet side of the cooling fan 40 and the compressor. 31.

The condenser 32 may include a plurality of porous flat tubes and a plurality of heat dissipation fins. The porous flat tube is bent into an arc shape. Heat dissipation fins are provided between adjacent porous flat tubes, and radially penetrating micropores can be formed between the two heat dissipation fins. A plurality of porous flat tubes and a plurality of heat dissipation fins constitute the body part 320 of the condenser 32, and the hollow channel 322 is formed in the axial center of the body part 320.

During installation, the axial direction of the condenser 32 can be arranged parallel to the transverse direction of the compressor cabin 50 , and the two ends of the hollow channel 322 extending along its axial direction can face the outlet side of the cooling fan 40 and the compressor cabin 50 respectively. .

The ambient air around the bottom air inlet 501 is driven by the cooling fan 40 from the bottom air inlet 501 into the compressor cabin 50 , and passes through the axial outer side of the condenser 32 and the hollow channel 322 of the condenser 32 before reaching the compressor 31 , and then flows from the bottom air outlet 502 to the bottom space to dissipate heat from the compressor 31 and the condenser 32 .

In addition, when the heat dissipation airflow passes through the axial outer surface of the condenser 32 and the hollow channel 322 of the condenser 32, it can also flow into a plurality of radially open micropores, further increasing the circulation channels of the heat dissipation airflow. , so that the inside of the condenser 32 can also be in contact with the heat dissipation airflow, thereby improving the heat exchange efficiency.

It can be seen that during heat exchange, the heat dissipation airflow can simultaneously exchange heat with the inner wall of the hollow channel 322, the axial outer surface of the condenser 32 and multiple micropores. Therefore, the cylindrical structure of the condenser 32 increases in the limited space. The heat exchange area of the condenser 32 improves the heat exchange efficiency.

Referring to FIG. 7 , further, the ratio between the barrel wall thickness L of the condenser 32 and the radius R of the hollow channel 322 is between 0.1 and 0.5, such as 0.1, 0.3, 0.5, etc.

The cylinder wall thickness L of the condenser 32 is determined by the flatness of the porous flat tube. The flatter the porous flat tube is, the wider the cylinder wall thickness L of the condenser 32 is. The body portion 320 of the condenser 32 is thicker. The more stable the overall structure is, the smaller the area (inner wall) of the hollow channel 322 of the condenser 32 is.

Through the above limitations, on the basis of ensuring the stability of the condenser 32, the area of the hollow channel 322 can be expanded as much as possible to ensure the ventilation of the heat dissipation air flow and the heat dissipation efficiency of the condenser 32.

4 , further, the cooling fan 40 has a fan frame 42 and a plurality of fan blades 44 arranged inside the fan frame 42 . The airflow area of the fan frame 42 is set to be no less than the area of the hollow channel 322 .

The fan frame 42 is arranged in the compressor cabin 50 along the front-to-back direction, so that its internal frame is arranged along the transverse direction of the compressor cabin 50 . Since one end of the cylindrical condenser 32 is facing the air outlet side of the cooling fan 40, the ventilation area of the fan frame 42 is set to be no less than the area of the hollow channel 322, so that the cooling air flow blown out from the frame can The entire condenser 32 is blown directly to avoid the axial outer side where part of the heat dissipation airflow cannot flow, further improving the heat dissipation efficiency.

Referring to FIGS. 3 and 4 , in some embodiments, the refrigerator 1 further includes a water collecting tray (not shown in the figure) and an evaporating dish 60 . The water receiving tray can be arranged at the bottom of the evaporator chamber to receive the condensed water generated by the evaporator 35 and the defrost water generated by defrosting. The evaporation dish 60 is arranged in the compressor cabin 50 and is connected to the water receiving pan using a drainage pipe, so that the high temperature of the compressor cabin 50 can be used to evaporate the condensed water and defrost water discharged from the water receiving pan into the compressor cabin 50 .

Referring to Figures 3 and 4, further, the condenser 32 can also be arranged in the evaporation dish 60, which not only facilitates the use of condensed water and defrost water to absorb the heat of the condenser 32, but also facilitates the collection of dust on the condenser 32 and debris.

Furthermore, a sealing process is performed between the bottom of the condenser 32 and the evaporation dish 60, which can prevent the heat dissipation airflow from passing through the gap between the condenser 32 and the evaporation dish 60 without passing through the condenser 32, thereby improving the heat dissipation efficiency.

In addition, the sealing process can also adopt a form-fit connection method, which eliminates the need for additional sealing materials, thereby saving material costs and avoiding the problem of deterioration in heat dissipation caused by aging of sealing materials.

Referring to FIGS. 3 and 4 , further, the cooling fan 40 can also be disposed in the evaporation dish 60 . Since the bottom air inlet part 501 is disposed at the bottom of the compressor cabin 50, if the cooling fan 40 is disposed outside the evaporation dish 60, it will need to occupy additional bottom space of the compressor cabin 50, thus squeezing the space of the bottom air inlet part 501. . Therefore, arranging the cooling fan 40 in the evaporation dish 60 not only helps to fix its position, but also minimizes the area occupied by the cooling fan 40 so as to expand the ventilation area of the bottom air inlet 501 .

Further, the evaporation dish 60 is provided with an air induction member (not shown in the figure) at the position on the suction side of the cooling fan 40 to guide the air entering the compressor cabin 50 from the bottom air inlet 501 to the cooling fan 40 for suction. side.

Since the heat dissipation fan 40 is disposed in the evaporation dish 60, the peripheral wall of the evaporation dish 60 may block the air inlet side of the heat dissipation airflow, or the bottom wall of the evaporation dish 60 may also cover part of the bottom air inlet 501, which will affect heat dissipation. Ventilation of air flow.

The air guide part can be an independent component, or it can be a structure integrally formed with the evaporation dish 60 . The air guide member can be disposed at a position of the evaporation dish 60 corresponding to the suction side of the cooling fan 40 so that the air entering the compressor cabin 50 from the bottom air inlet 501 is guided to the suction side of the cooling fan 40 .

Referring to Figures 5 and 6, in some embodiments, the refrigerator 1 may further include a wind shield. The windshield is set at the bottom The bottom space is located between the bottom air inlet part 501 and the bottom air outlet part 502 to divide the bottom space into an air inlet channel 11 connected to the bottom air inlet part 501 and an air outlet channel 12 connected to the bottom air outlet part 502.

The wind shield divides the bottom space into an air inlet channel 11 connected to the bottom air inlet part 501 and an air outlet channel 12 connected to the bottom air outlet part 502. This can ensure that the air inlet and air outlet of the bottom space remain relatively independent and do not affect each other. , ensuring air inlet efficiency and air outlet efficiency.

Since the bottom air inlet part 501 and the bottom air outlet part 502 are arranged along the lateral direction of the compressor cabin 50, the air inlet channel 11 and the air outlet channel 12 can also be arranged side by side laterally, that is, the windshielding member can generally extend forward and backward. Since the bottom space of the box 10 is usually open forward, the air inlet channel 11 and the air outlet channel 12 are also open forward. Then, under the action of the cooling fan 40, the air in front of the bottom space (in front of the refrigerator 1) can It enters the bottom space from the air inlet channel 11, then enters the compressor cabin 50 through the bottom air inlet part 501, and then is discharged from the bottom air outlet into the air inlet channel 12 after exchanging heat with the condenser 32 and compressor 31. The channel 12 flows forward to the front of the bottom space (the front of the refrigerator 1), forming a circulation.

Referring to FIG. 5 , in some specific embodiments, the windshielding member is a long windshielding rod 710 . The windshielding member is configured to extend from front to back and in a direction close to the bottom air inlet 501 to the front end position of the cooling fan 40 .

That is to say, the air inlet channel 11 divided by the windshield is tapered from front to back, which on the one hand ensures that the front end of the air inlet channel 11 has a larger air inlet area, and on the other hand, the tapered air inlet channel 11 also The air inlet speed can be increased (the smaller the air inlet area, the higher the wind speed), and the ventilation of the bottom air inlet part 501 can be improved.

Referring to FIG. 6 , in some other specific embodiments, the wind shield may further include a first section 722 and a second section 724 . The front end of the first section 722 is at the front edge of the box 10 and extends rearward. The front end of the second section 724 is connected to the rear end of the first section 722 , and extends from front to back and in a direction close to the bottom air inlet 501 , so that its rear end is at the front end of the cooling fan 40 .

The first section 722 and the second section 724 can be integrally formed, or connected through fasteners, welding, etc. The wind shield formed by the first section 722 and the second section 724 also enables the portion of the air inlet channel 11 adjacent to the bottom air inlet portion 501 to be tapered, which can also improve the ventilation of the bottom air inlet portion 501 .

In the above two embodiments, the height of the wind shield is set to be no greater than the height of the bottom space. Specifically, since the bottom height can be adjusted by the feet, the height of the windshield can also be specifically configured to be no greater than the minimum height of the bottom space, thus ensuring that the windshield will not interfere with the balance of the refrigerator 1 .

Referring to Figure 4, in some embodiments, the press chamber 50 may also include a bottom steel 510, two side plates 520 located on both sides of the bottom steel 510, a back plate 530 located on the rear side of the bottom steel 510, and a bottom steel 510 located above the bottom steel 510. The cover plate 540. The bottom air inlet part 501 and the bottom air outlet part 502 are both provided on the bottom steel 510 .

The bottom steel 510 can also be provided with a fixing device (such as a claw mechanism, a groove structure, etc.) for fixing the evaporating dish 60 and the compressor 31. The evaporating dish 60 and the compressor 31 are laterally fixed to the bottom steel 510 through the fixing device. . The evaporation dish 60 can be disposed on the bottom steel 510 and close to the side of the bottom air inlet 501 so that the cooling fan 40 thereon is close to the bottom air inlet 501 . The compressor 31 is disposed on a side of the bottom steel 510 close to the bottom air outlet 502 so that the heat dissipation airflow after exchanging heat with the compressor 31 is discharged downward from the bottom air outlet 502 .

The two side plates 520 serve as the left side wall and the right side wall of the compressor cabin 50 respectively. Since the air inlet volume of the bottom air inlet part 501 may already meet the ventilation volume of the compressor cabin 50, the side air inlets on the side panels 520 adjacent to the bottom air inlet part 501 are Can be cancelled. Regardless of whether the refrigerator 1 is used independently or embedded, the compressor cabin 50 can be ventilated through bottom air inlet.

Referring to FIG. 4 , in addition, the refrigerator 1 can also retain the side air outlet, that is, retain the side air outlet 522 on the side panel 520 adjacent to the bottom air outlet 502 . In this way, when the refrigerator 1 is used independently, the air in front of the refrigerator 1 can enter the compressor chamber 50 through the air inlet channel 11 and the bottom air inlet 501, and then be discharged outward simultaneously through the bottom air outlet 502 and the side air outlet 522. In this way Not only can it improve the air outlet efficiency, but it can also avoid discomfort caused by a large amount of hot air being blown forward and acting on the user's feet. When used in flush-mounted installation, since the side air outlet 522 may be blocked, most of the heat dissipation airflow is discharged from the bottom air outlet 502 to the bottom space, which can also ensure the heat dissipation effect.

Referring to FIG. 4 , in addition, the backing plate 530 serves as the rear wall of the compressor cabin 50 . Therefore, in order to avoid air leakage and prevent the cooling airflow from being discharged from the compressor cabin 50 without passing through the condenser 32 and the compressor 31, no air outlet may be provided on the back plate 530, especially when the back plate 530 is opposite to the fan heater and the condenser 32. The portion between the back plate 530 and the condenser 32 and the compressor 31, etc.

Further, the bottom air inlet part 501 may include a plurality of bottom air inlets opened on the bottom steel 510. Each bottom air inlet hole is elongated, and the plurality of bottom air inlet holes are arranged in an array. The bottom air outlet part 502 may include a plurality of bottom air outlets opened on the bottom steel 510. Each bottom air outlet is elongated, and the plurality of bottom air outlets are arranged in an array. In this way, on the basis of ensuring that the bottom air inlet part 501/bottom air inlet part 501 meets the ventilation requirements, the aesthetics of the bottom air inlet part 501/bottom air inlet part 501 is improved.

Of course, the shape and arrangement of the bottom air inlet holes and the bottom air outlet holes on the bottom air inlet part 501 and the bottom air outlet part 502 can also be other ways. For example, in some other embodiments, some plate sections of the bottom steel 510 may also be composed of wire mesh, so that the gaps in the wire mesh serve as bottom air inlet holes and bottom air outlet holes.

By now, those skilled in the art will appreciate that, although a number of exemplary embodiments of the present invention have been shown and described in detail herein, the disclosed embodiments may still be practiced in accordance with the present invention without departing from the spirit and scope of the present invention. The content directly identifies or leads to 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 is characterized by including:

A box with a bottom space between its bottom and the ground; and

The compressor cabin is arranged at the bottom of the rear side of the box. The bottom of the compressor cabin is provided with a bottom air inlet and a bottom air outlet, so that the air in the bottom space enters the compressor through the bottom air inlet. The engine room is discharged into the bottom space through the bottom air outlet.
The refrigerator according to claim 1, characterized in that

The bottom air inlet part and the bottom air outlet part are arranged along the transverse direction of the compressor cabin; and,

The refrigerator also includes:

Refrigeration system, the refrigeration system includes a compressor and a condenser connected in series in the refrigerant flow path, the compressor and the condenser are both arranged in the compressor cabin, and the compressor is in the bottom inlet Between the air part and the bottom air outlet part, the condenser is between the bottom air inlet part and the bottom air outlet part;

A cooling fan, the cooling fan is arranged in the compressor cabin between the bottom air inlet part and the bottom air outlet part, so as to promote the formation of air entering the compressor cabin from the bottom air inlet part and passing through the bottom air inlet part. Describe the heat dissipation airflow discharged from the bottom air outlet.
The refrigerator according to claim 2, characterized in that:

In the direction from the bottom air inlet to the bottom air outlet, the cooling fan, the condenser and the compressor are arranged in sequence at intervals.
The refrigerator according to claim 3, characterized in that:

The condenser is flat and square as a whole, and the two wider sides of the condenser are respectively facing the air outlet side of the cooling fan and the compressor.
The refrigerator according to claim 3, characterized in that:

The condenser is cylindrical as a whole, and has a hollow passage extending along its axial direction. The two axial ends of the hollow passage are respectively facing the air outlet side of the cooling fan and the compressor.
The refrigerator according to claim 5, characterized in that:

The ratio between the barrel wall thickness of the condenser and the radius of the hollow channel is between 0.1 and 0.5.
The refrigerator according to claim 5, characterized in that:

The cooling fan has a fan frame and a plurality of fan blades arranged inside the fan frame; and

The ventilation area of the fan frame is set to be no less than the area of the hollow channel.
The refrigerator according to claim 2, further comprising:

The evaporation dish is arranged in the compressor cabin, below the condenser, and the bottom of the condenser is sealedly connected to the evaporation dish.
The refrigerator according to claim 8, characterized in that:

The heat dissipation fan is arranged in the evaporation dish; and

The evaporation dish is provided with an air guiding member at a position on the suction side of the cooling fan to guide the air entering the compressor cabin from the bottom air inlet to the suction side of the cooling fan.
The refrigerator according to claim 2, further comprising:

A windshield is provided in the bottom space, between the bottom air inlet part and the bottom air outlet part, so as to divide the bottom space into an air inlet channel connected to the bottom air inlet part and a communicating place. Describe the air outlet channel of the bottom air outlet portion.
The refrigerator according to claim 10, characterized in that:

The windshielding member is a long windshielding pole; and

The windshielding member is configured to extend from front to back and in a direction close to the bottom air inlet.
The refrigerator according to claim 10, characterized in that the wind shield further includes:

A first section, the front end of the first section is at the front edge of the box and extends rearward;

The second section has a front end connected to the rear end of the first section and extends from front to back and in a direction close to the bottom air inlet.
The refrigerator according to claim 10, characterized in that:

The height of the wind shield is set to be no greater than the height of the bottom space.
The refrigerator according to claim 1, characterized in that:

The press cabin includes a bottom steel, two side plates located on both sides of the bottom steel, a back plate located on the rear side of the bottom steel, and a cover plate located above the bottom steel;

The bottom air inlet part and the bottom air outlet part are both arranged on the bottom steel.
The refrigerator according to claim 14, characterized in that:

The bottom air inlet portion includes a plurality of bottom air inlets opened on the bottom steel, each of the bottom air inlets is elongated, and the plurality of bottom air inlets are arranged in an array; and/or,

The bottom air inlet portion includes a plurality of bottom air inlets opened on the bottom steel, each of the bottom air inlets is elongated, and the plurality of bottom air inlets are arranged in an array. .