WO2024027675A1

WO2024027675A1 - Refrigerator

Info

Publication number: WO2024027675A1
Application number: PCT/CN2023/110471
Authority: WO
Inventors: 姬立胜; 陈建全; 邢飞; 刘勇豪; 崔展鹏
Original assignee: 沈阳海尔电冰箱有限公司; 青岛海尔电冰箱有限公司; 海尔智家股份有限公司
Priority date: 2022-08-01
Filing date: 2023-08-01
Publication date: 2024-02-08
Also published as: CN117537539A

Abstract

A refrigerator (1). A heat dissipation pipe (30) is arranged at the top of a refrigerator body (10), surrounds a condenser (22), and forms a heat dissipation passage (303) which is opened forwards; and the heat dissipation pipe (30) is configured to introduce air in a space in front of the refrigerator body (10) into the heat dissipation pipe, blow the air to the condenser (22), and finally discharge the air out of the refrigerator body forwards by means of the heat dissipation passage (303).

Description

refrigerator

Technical field

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

Background technique

In a refrigerator, the heat dissipation efficiency of the refrigeration system directly affects the refrigeration efficiency. Usually, the refrigerator is equipped with a compressor cabin under the rear side. The compressor and condenser are both installed in the compressor cabin and cooperate with the cooling fan to dissipate heat. However, with the rise of built-in refrigerators, the heat dissipation efficiency of the above solutions has been directly affected due to the obstruction of cabinets. Therefore, R&D researchers are actively exploring other heat dissipation solutions for refrigeration systems.

In some existing technologies, there is a solution of arranging the condenser on the top of the refrigerator to dissipate heat separately from the compressor, thereby avoiding the situation of delayed heat dissipation due to both being placed in the compressor compartment at the same time. However, these existing technologies are currently only at the principle level and fail to further propose technical solutions to improve the heat exchange efficiency of the condenser.

Contents of the invention

An object of the present invention is to overcome at least one defect in the prior art and provide a refrigerator with a condenser arranged on the top of the box.

A further object of the present invention is to inlet and outlet the air flow from the front of the condenser for heat dissipation.

Another further object of the present invention is to increase the air volume of the cooling air flow.

In particular, the present invention provides a refrigerator, including: a box with a storage compartment open forward; a refrigeration system including a condenser, which is arranged on the top of the box; and a heat dissipation pipe, which is arranged on the box. The top of the body is surrounded by the condenser and forms a forward-open heat dissipation channel. The heat dissipation pipe also has at least one cooling air flow inlet and one cooling air flow outlet. Each cooling air flow inlet is located near the front edge of the box for heat dissipation. The airflow outlet is at the rear side of the condenser, and the heat dissipation pipe is configured to introduce the air in the front space of the box into it, blow it towards the condenser, and finally discharge the box forward through the heat dissipation channel.

Optionally, the heat dissipation pipe also includes: a first pipe section, located on the first transverse side of the box, and extending from front to back as a whole, and its front end serves as a cooling airflow inlet; a second pipe section, the first end of which is formed on the first The rear end of the pipe section extends from the first transverse side of the box to the second transverse side, and the cooling airflow outlet is provided on the front wall of the second pipe section; the third pipe section is located on the second transverse side of the box, and its rear end is formed on the second transverse side of the box. The second end of the second pipe section extends from back to front as a whole, and its front end serves as a cooling airflow inlet.

Optionally, the first pipe section is arranged to be inclined from its front end to the rear end and towards the transverse second side; and the third pipe section is arranged to be inclined from its front end to the rear end and to the transverse first side.

Optionally, the condenser is flat as a whole and is arranged horizontally on the top of the box, with an air inlet gap formed between it and the top surface of the box, and a plurality of vertically connected heat dissipation micro-channels are defined inside the condenser; And the refrigerator also includes: a cooling fan, which is installed at the condenser and is configured to prompt the air in the front space of the box to enter the heat dissipation pipe from the cooling air flow inlet, and then enter the cooling microchannel through the cooling air flow outlet and the air inlet gap to interact with the condensation. heat exchanger.

Optionally, the condenser also includes: multiple flat tubes, the multiple flat tubes are arranged in parallel and spaced apart and connected in sequence, and each The wider side of the flat tube is arranged vertically; a plurality of fins are arranged vertically between two sections of the flat tube, and heat dissipation microchannels are formed between each two fins.

Optionally, the cooling fan is a centrifugal fan, which is arranged above the flat tube, and the axial air inlet side of the cooling fan is arranged opposite to the cooling microchannel to suck in air from the cooling microchannel and discharge it radially to the cooling channel. .

Optionally, the cooling fan is located on the rear side of the flat tube; and the condenser further includes: a plurality of baffles, which are formed at intervals above the flat tube and extend forward from the front end of the cooling fan to divert the flow along the path of the cooling fan. Direct the exhaust airflow forward.

Optionally, the heat dissipation fan is a cross-flow fan, and the cross-flow fan is disposed above the condenser in a transverse direction to suck in air from the heat dissipation microchannel and discharge it forward to the heat dissipation channel.

Optionally, a cooling fan is provided on the front side of the condenser.

Optionally, a compressor cabin is provided on the rear side of the bottom of the box; the refrigeration system also includes a compressor, which is disposed in the compressor cabin and connected to the condenser through a refrigerant pipeline; the compressor cabin has a bottom steel and a bottom steel. The two side plates on both sides, the back plate provided on the rear side of the bottom steel, and the cover plate provided above the bottom steel; the bottom steel is provided with a bottom air inlet and a bottom air outlet along the transverse direction, and the compressor is located in the bottom air inlet. and between the bottom air outlet.

In the refrigerator of the present invention, the condenser is arranged on the top of the box, and the heat dissipation pipe is arranged on the top of the box and surrounds the condenser to form a heat dissipation channel open forward. The heat dissipation airflow inlet of the heat dissipation pipe is located adjacent to the box. On the front edge of the body, the cooling air outlet of the heat pipe is at the back of the condenser. Therefore, the heat pipe can suck the air from the front space of the refrigerator into it and guide it to the back of the condenser, blowing it from back to front. The condenser exchanges heat with the condenser, realizing the front air inlet and front air outlet of the cooling air flow for heat exchange of the condenser, making full use of the top space of the box to improve the heat exchange effect, making the refrigerator more suitable for built-in refrigerators. Set up the scene.

Further, in the refrigerator of the present invention, the first pipe section of the heat dissipation pipe is located on the first transverse side of the box and extends from front to back as a whole, and the first end of the second pipe section of the heat dissipation pipe is formed at the rear end of the first pipe section, and Extending from the first transverse side of the box to the second transverse side of the box, the third pipe section of the heat dissipation pipe is located on the second transverse side of the box, and its rear end is formed on the second end of the second pipe section, and extends from back to front as a whole. The first pipe section, the third pipe section and the third pipe section together form a heat dissipation channel surrounding the condenser, and the opposite front side of the second pipe section serves as the exposure of the heat dissipation channel. This arrangement has greater air volume and better heat exchange effect.

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 the drawings

Some specific embodiments of the invention will be described in detail below by way of illustration and not limitation with reference to the accompanying drawings. 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 top view of a refrigerator according to one embodiment of the present invention;

Figure 4 is a top view of a refrigerator according to another embodiment of the present invention;

Figure 5 is a schematic structural diagram of the top of the box in the refrigerator according to one embodiment of the present invention;

Figure 6 is a schematic diagram of a condenser in a refrigerator according to one embodiment of the present invention;

Figure 7 is a schematic structural diagram of the top of the box in the refrigerator according to another embodiment of the present invention;

Figure 8 is an exploded view of the medium-pressure engine compartment of the refrigerator according to one 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 60 .

The box 10 may include an outer shell 11 and at least one inner pot 13 . The outer shell 11 is located at the outermost side of the entire refrigerator 1 to protect the entire refrigerator 1 . The multiple inner bladders 13 are wrapped by the outer shell 11 , and the spaces between the multiple inner bladders 13 and the outer shell 11 are filled with thermal insulation materials (forming the thermal insulation layer 12 ) to reduce the outward heat dissipation of the inner bladders 13 . Each inner bladder 13 can define a forward-open storage space, 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-requisites. .

The number of doors 60 can also be consistent with the number of inner pots 13 , that is, each storage compartment of the inner pot 13 that opens forward can be opened and closed by its corresponding door 60 . The door 60 is movably disposed in front of the box 10. For example, the door 60 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 system 20 in the refrigerator 1 according to one embodiment of the present invention. In some embodiments, the refrigerator 1 may further include a refrigeration system 20 for providing cooling capacity for the storage compartments. The refrigeration system 20 may also include a compressor 21, a condenser 22, a dew removal pipe 23, a throttling device 24, an evaporator 25, etc. in the refrigerant flow path.

The compressor 21 serves as the power of the refrigeration system 20. A compressor cabin 15 is provided at the rear bottom of the box 10, and the compressor 21 can be disposed in the compressor cabin 15 (as shown in Figure 1). The compressor 21 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 so that it can be used with normal temperature air or water. Used as a cooling medium to condense refrigerant vapor.

The condenser 22 is a heat exchange device that uses the environment to take away heat from the high-temperature and high-pressure refrigeration vapor from the compressor 21, 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 23 is connected to the outlet of the condenser 22. Since the refrigerant at the outlet of the condenser 22 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 23 Surrounding parts can be heated to prevent frost formation. Specifically, the dew removal pipe 23 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 24 (which can be a capillary tube) can be connected in series to the outlet of the condenser 22 to reduce the pressure of the refrigerant liquid and reduce the temperature of the refrigerant liquid, so that the high-pressure and normal-temperature refrigerant liquid discharged from the condenser 22 becomes low temperature. The low-pressure refrigerant is thus discharged into the evaporator 25 to undergo phase change and absorb heat.

The evaporator 25 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 25 can be disposed outside or inside the rear wall of the inner pot 13 . 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 the air duct system, and an evaporator 25 is provided in the evaporator room, and a fan is provided at the outlet to supply air to the storage room. Circulating refrigeration is carried out in the object room.

Referring to Figures 1 and 3, Figure 3 is a top view of a refrigerator 1 according to an embodiment of the present invention. In some embodiments, the condenser 22 is not disposed in the compressor cabin 15, but is disposed on the top of the box 10. In this way, the condenser 22 and the compressor 21 are in different spaces to dissipate heat respectively, which can improve the performance of both. The heat dissipation efficiency is improved, thereby improving the cooling effect of the refrigeration system 20.

In addition, arranging the condenser 22 on the top of the box 10 can also reduce the load of the compressor cabin 15, and can eliminate the space occupied by the original condenser 22 in the compressor cabin 15, thereby expanding the space of the storage compartment. For example, the compressor cabin 15 can be designed to occupy only one lateral side of the box 10, thus releasing the space on the other lateral side to the inner tank (that is, the inner tank can be extended further rearward on this side), so that the expanded space can be used. The space for placing the evaporator makes the structure more compact and the space utilization rate higher.

Specifically, the compressor 21 provided in the compressor cabin 15 is connected to the condenser 22 provided on the top of the box 10 through a refrigerant pipeline. The refrigerant pipeline can also pass through the insulation layer 12 in the box 10 to hide the refrigerant pipeline.

Referring to Figure 3, in some embodiments, the refrigerator 1 may further include a heat dissipation pipe 30. The heat dissipation pipe 30 is disposed on the top of the box 10 and surrounds the condenser 22, forming a forwardly open heat dissipation channel 303. The heat dissipation pipe 30 also has at least one heat dissipation air flow inlet 301 and one heat dissipation air flow outlet 302. Each heat dissipation air flow inlet 301 is located near the front edge of the box 10, and the heat dissipation air flow outlet 302 is located at the rear side of the condenser 22. The heat dissipation pipe 30 is configured as The air in the front space of the box 10 is introduced into it, and blown toward the condenser 22 from back to front, and is finally discharged from the box 10 forward through the heat dissipation channel 303 .

When the refrigerator 1 is embedded in a cabinet, the rear space and the spaces on the left and right sides of the refrigerator 1 are blocked by the cabinet, so the heat dissipation effect is not good when it is backward or to both sides.

In this embodiment, since the heat dissipation airflow inlet 301 of the heat dissipation pipe 30 is close to the front edge of the box 10 and the heat dissipation airflow outlet 302 is at the rear side of the condenser 22, the heat dissipation pipe 30 can suck the air from the front space of the refrigerator 1 It is guided to the rear side of the condenser 22 and blown toward the condenser 22 from back to front to exchange heat with the condenser 22 . That is to say, this embodiment realizes the use of air intake from the top front side of the box 10, resulting in larger air volume and higher heat exchange effect.

In addition, since the heat dissipation pipe 30 surrounds the condenser 22 and forms a heat dissipation channel 303 open forward, the air after exchanging heat with the condenser 22 can be directly discharged into the heat dissipation channel 303 and then from the heat dissipation channel 303 Move forward to the front side of the box 10 to realize air discharge from the front and form a circulation.

It can be seen that in the refrigerator 1 of this embodiment, the heat dissipation pipe 30 can not only guide the air flow in the front space of the box 10 to the condenser 22 on the top of the box 10 to achieve front air intake, but also can surrounded by its own tube shape The condenser 22 forms a forward-open heat dissipation channel 303 to prevent the heat-exchanged airflow from flowing randomly on the top of the box 10, to guide the air out from the front, form a circulating airflow, and make full use of the open space in front of the box 10. , increasing the air inlet volume of the heat dissipation airflow and optimizing the heat dissipation efficiency of the condenser 22 .

Referring to FIG. 3 , in some embodiments, the heat dissipation pipe 30 may also include a first pipe section 310 , a second pipe section 320 and a third pipe section 330 . The first pipe section 310 is located on the first transverse side of the box 10 , and extends from front to back as a whole. extends, and its front end serves as a cooling airflow inlet 301. The first end of the second pipe section 320 is formed at the rear end of the first pipe section 310 and extends from the transverse first side to the transverse second side of the box 10 . The cooling airflow outlet 302 is provided on the front wall of the second pipe section 320 . The third pipe section 330 is located on the second transverse side of the box 10 , its rear end is formed on the second end of the second pipe section 320 , and extends from back to front as a whole, and its front end serves as a cooling airflow inlet 301 .

Since the heat dissipation pipe 30 surrounds the condenser 22 to form a forwardly open heat dissipation channel 303, the first pipe section 310 and the third pipe section 330 extend on the first transverse side and the transverse second side of the condenser 22, and the second pipe section 320 extends behind the condenser 22 , and together they form a heat dissipation channel 303 surrounding the condenser 22 , and the opposite front side of the second pipe section 320 serves as the opening of the heat dissipation channel 303 .

In this embodiment, the number of cooling air flow inlets 301 is two. The two cooling air flow inlets 301 are respectively provided at the front ends of the first pipe section 310 and the third pipe section 330 . The first pipe section 310 and the third pipe section 330 are respectively provided at the front ends of the first pipe section 310 and the third pipe section 330 . The transverse first and second sides of the box 10 , that is to say, the heat dissipation pipe 30 can simultaneously suck in air from the front of the first and second transverse sides of the top of the box 10 , and then converge in the second pipe section 320 , and finally discharged from the cooling air outlet 302 to the condenser 22. This arrangement has a larger air volume and a better heat exchange effect.

Further, the first pipe section 310 and the third pipe section 330 extend in the front-to-back direction as a whole, which can be understood to mean that the first pipe section 310 and the third pipe section 330 can extend strictly in the front-to-back direction (as shown in Figure 3), or It can be understood that while extending front and back, it can also extend left and right obliquely.

Referring to Figure 4, Figure 4 is a top view of the refrigerator 1 according to another embodiment of the present invention. For example, in some specific embodiments, the first tube section 310 is arranged to be inclined from its front end to the rear end and towards the second transverse side, and the third tube section 330 is arranged to be inclined from its front end to the rear end and towards the first transverse side.

That is to say, the front end of the first pipe section 310 is closer to the first transverse side, and the front end of the third pipe section 330 is closer to the second transverse side. The heat dissipation channel 303 thus formed is gradually expanding from the back to the front, so the gradually expanding shape is The heat dissipation channel 303 can reduce the flow rate of the heat dissipation airflow discharged from the back to the front, thereby making the air outlet at the opening of the heat dissipation channel 303 warm and the air pressure not being too low, thereby dissipating heat from the heat dissipation airflow inlet 301 of the first pipe section 310 and the third pipe section 330 The air inlet 301 has less impact on the air intake.

Referring to Figures 5 and 6, Figure 5 is a schematic structural diagram of the top of the box 10 in the refrigerator 1 according to one embodiment of the present invention, and Figure 6 is a schematic diagram of the condenser 22 in the refrigerator 1 according to one embodiment of the present invention. In some embodiments, the condenser 22 is flat as a whole and is disposed horizontally on the top of the box 10 with an air inlet gap 14 formed between the condenser 22 and the top surface of the box 10 . The condenser 22 defines a plurality of vertical To the heat dissipation micro-channel 220 that passes through. The refrigerator 1 also includes a cooling fan 40. The cooling fan 40 is disposed at the condenser 22. The cooling fan 40 can cause the air in the front space of the box 10 to enter the cooling pipe 30 from the cooling air flow inlet 301, and sequentially pass through the cooling air flow outlet 302 and the inlet. Wind gap 14 enters the heat dissipation micro-pass Channel 220 to exchange heat with the condenser 22.

The condenser 22 is flat as a whole and is arranged horizontally on the top of the box 10. This arrangement can minimize the protruding height of the condenser 22 from the top of the box 10, reduce the overall height of the refrigerator 1, and avoid interference with the cabinet.

The bottom surface of the condenser 22 is spaced apart from the top surface of the box 10, and an air inlet gap 14 is formed therebetween. Since the interior of the condenser 22 defines a vertically penetrating heat dissipation microchannel 220, when the heat dissipation fan 40 is started, it can prompt the air in the front of the box 10 to enter the heat dissipation pipe 30 from the two heat dissipation airflow inlets 301, and then from the heat dissipation fan 40. The air flow outlet 302 is discharged to the air inlet gap 14 below the condenser 22, and then passes through the heat dissipation microchannel 220 from bottom to top in the air inlet gap 14 to achieve heat exchange with the condenser 22. The air after heat exchange is directly discharged into the heat dissipation In the channel 303, it finally flows forward to the front space of the box 10, forming a circulation.

Referring to FIGS. 5 and 6 , in some specific embodiments, the condenser 22 may also be a microchannel condenser 22 . The condenser 22 may also include a plurality of flat tubes 221 and a plurality of fins 222. The plurality of flat tubes 221 are arranged in parallel and spaced apart and connected in sequence, and the wider side of each flat tube 221 is arranged vertically, and each fin 222 It is arranged vertically between two sections of flat tubes 221, and a heat dissipation microchannel 220 is formed between each two fins 222.

The flat tubes 221 can be flat, with the wider side of each section of the flat tube 221 arranged vertically, and the multiple sections of the flat tubes 221 can be spaced apart along the front and rear direction, or spaced apart along the transverse direction. Some vertical fins 222 are formed between every two adjacent flat tubes 221 , and vertically arranged heat dissipation microchannels 220 are formed between every two adjacent fins 222 . The fins 222 can conduct the heat on the flat tube 221 to the fins 222, so that when the airflow passes through the heat dissipation microchannel 220, it conducts convection heat exchange with the fins 222 and takes away the heat.

Since the air inlet gap 14 is formed between the condenser 22 and the top surface of the box 10 , the airflow discharged from the cooling airflow outlet 302 can first enter the air inlet gap 14 and then pass through the heat dissipation microchannel from bottom to top. 220, performs heat exchange with fins 222 and flat tubes 221 to take away the heat of the condenser 22 in time.

Referring to FIG. 5 , in some embodiments, the cooling fan 40 is a centrifugal fan, which is disposed above the flat tube 221 , and the axial air inlet side of the cooling fan 40 is disposed opposite to the heat dissipation microchannel 220 to inhale air from the heat dissipation microchannel 220 of air, and is discharged to the heat dissipation channel 303 in the radial direction.

When the centrifugal fan is started, the air in the front of the box 10 is forced to enter the heat dissipation pipe 30 through the two cooling air flow inlets 301, and then is discharged from the cooling air flow outlet 302 to the air inlet gap 14 below the condenser 22, and then from the air inlet gap 14 It passes through the heat dissipation microchannel 220 from bottom to top to exchange heat with the condenser 22. The air flow after heat exchange is discharged into the heat dissipation channel 303 along its radial direction, and finally discharges forward to the front space of the box 10, forming cycle.

Referring to FIG. 5 , further, the cooling fan 40 is located on the rear side of the flat tube 221 . The condenser 22 also includes a plurality of baffles 223 . The plurality of baffles 223 are formed at intervals above the flat tube 221 and extend forward from the front end of the cooling fan 40 to radially discharge the cooling fan 40 . Airflow is directed forward.

That is to say, the plurality of guide plates 223 are equivalent to the volutes of the centrifugal fan to guide the air flow to be discharged forward from the gap between two adjacent guide plates 223, further improving the circulation of the circulating air flow and improving the air exchange rate. Thermal efficiency.

Referring to Figure 5, in some specific embodiments, since the plurality of guide plates 223 extend from back to front and are formed above the flat tube 221, when the flat tube 221 is also arranged to extend front and back, the multiple guide plates 223 are arranged to extend front and back. Flow plate 223 can be used with multi-section flat tubes 221 corresponds to the molding and production one-to-one, simplifying the molding process.

In addition, since the guide plate 223 is formed on the flat tube 221, the guide plate 223 can guide the flow forward on the one hand and absorb the heat on the flat tube 221 on the other hand, so that the flow through the guide plate can be utilized 223 airflow performs "secondary heat exchange", extending the heat exchange path and further improving the heat exchange efficiency.

In addition, since the guide plate 223 is provided in front of the centrifugal fan for flow guidance, its height can be set slightly higher than the centrifugal fan, so that the centrifugal fan will not protrude from the guide plate 223 and protect the centrifugal fan. effect.

Referring to Figure 7, Figure 7 is a schematic structural diagram of the top of the box 10 in the refrigerator 1 according to another embodiment of the present invention. In some embodiments, the heat dissipation fan 40 can also be a cross-flow fan. The cross-flow fan is disposed transversely above the condenser 22 and on the front side of the flat tube 221 to suck in air from the heat dissipation microchannel 220 and send it to Front row to heat dissipation channel 303.

Cross-flow fans are mainly composed of three parts: impeller, air duct and motor. The impeller is cylindrical and can be arranged transversely. The air duct is wrapped around the circumference of the impeller and has an air inlet and an air outlet facing the impeller. In this embodiment, since the cross-flow fan is disposed above the flat tube 221 and needs to inlet air upward and discharge air forward, the air inlet can be disposed facing the condenser 22 and the air outlet can be opened forward.

When the cross-flow fan is started, the air in the front of the box 10 is forced to enter the heat dissipation pipe 30 through the two cooling air flow inlets 301, and then is discharged from the cooling air flow outlet 302 to the air inlet gap 14 below the condenser 22, and then from the air inlet gap 14 passes through the heat dissipation microchannel 220 from bottom to top to achieve heat exchange with the condenser 22. The air flow after heat exchange is sucked into the air inlet of the cross-flow fan, and is sent forward from the air outlet after changing the direction of the impeller, and finally forward. The top of the box 10 is discharged to form a circulation.

Referring to Figure 8, Figure 8 is an exploded view of the medium-pressure engine compartment 15 of the refrigerator 1 according to one embodiment of the present invention. In some embodiments, the compressor cabin 15 has a bottom steel 150, two side plates 152 disposed on both sides of the bottom steel 150, a back plate 154 disposed on the rear side of the bottom steel 150, and a cover plate 155 disposed above the bottom steel 150. . The bottom steel 150 is laterally provided with a bottom air inlet part 150a and a bottom air outlet part 150b, and the compressor 21 is located between the bottom air inlet part 150a and the bottom air outlet part 150b.

Since the box 10 has a bottom space between its bottom and the ground under the support of the feet, the bottom steel 150 of the compressor cabin 15 is laterally provided with a bottom air inlet part 150a and a bottom air outlet part 150b. The compressor 21 is located at the bottom air inlet part. between the bottom air outlet part 150a and the bottom air outlet part 150b. Therefore, the cooling airflow of the compressor cabin 15 enters the compressor cabin 15 from the bottom space through the bottom air inlet part 150a to exchange heat with the compressor 21, and then flows from the bottom air outlet part 150b to The lower row goes to the bottom space. In addition, a refrigeration fan 50 may be disposed in the compressor cabin 15 to encourage the air in the bottom space to enter the compressor cabin 15 from the bottom air inlet part 150a and be discharged to the bottom space from the bottom air outlet part 150b.

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 15. , which is more conducive to the use environment of the built-in refrigerator 1.

The two side plates 152 serve as the left side wall and the right side wall of the compressor cabin 15 respectively. Since the air inlet volume of the bottom air inlet portion 150a may already meet the ventilation volume of the compressor cabin 15, the side air inlets on the side panels 152 adjacent to the bottom air inlet portion 150a can be eliminated. Regardless of whether the refrigerator 1 is used independently or embedded, the compressor cabin 15 can be ventilated through bottom air inlet. wind.

In addition, the refrigerator 1 can also retain the side air outlet, that is, retain the side air outlet 152a on the side panel 152 adjacent to the bottom air outlet 150b. In this way, when the refrigerator 1 is used independently, the air in front of the refrigerator 1 can enter the compressor chamber 15 through the bottom air inlet 150a, and then be discharged outward simultaneously through the bottom air outlet 150b and the side air outlet 152a. This can not only improve the air outlet Efficiency can also avoid discomfort caused by a large amount of hot air blowing forward and acting on the user's feet. In flush-mounted use, since the side air outlet 152a may be blocked, most of the heat dissipation airflow is discharged from the bottom air outlet 150b to the bottom space, which can also ensure the heat dissipation effect.

In addition, the backing plate 154 serves as the rear wall of the compressor cabin 15 . Therefore, in order to avoid air leakage and prevent the cooling airflow from being discharged from the compressor cabin 15 without passing through the compressor 21, any air outlet may not be provided on the back plate 154.

Further, the bottom air inlet portion 150a may include a plurality of bottom air inlet holes opened on the bottom steel 150, each bottom air inlet hole is elongated, and the plurality of bottom air inlet holes are arranged in an array. The bottom air outlet portion 150b may include a plurality of bottom air outlets opened on the bottom steel 150. 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 150a meets the ventilation requirements, the aesthetics of the bottom air inlet part 150a 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 150a and the bottom air outlet part 150b can also be other ways. For example, in some other embodiments, some plate sections of the bottom steel 150 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 including:

The box has a storage compartment that opens forward;

Refrigeration system, the refrigeration system includes a condenser, the condenser is arranged on the top of the box;

A heat dissipation pipe is arranged on the top of the box and surrounds the condenser, forming a forwardly open heat dissipation channel. The heat dissipation pipe also has at least one cooling airflow inlet and one cooling airflow outlet, each The cooling airflow inlet is located near the front edge of the box, the cooling airflow outlet is located on the rear side of the condenser, and the heat dissipation pipe is configured to introduce air from the front space of the box into it, and It is blown towards the condenser and finally discharged forward from the box through the heat dissipation channel.
The refrigerator according to claim 1, wherein the heat dissipation pipe further includes:

The first pipe section is located on the first transverse side of the box and extends from front to back as a whole, and its front end serves as one of the cooling airflow inlets;

The first end of the second pipe section is formed at the rear end of the first pipe section and extends from the first transverse side of the box to the second transverse side, and the cooling airflow outlet is disposed in front of the second pipe section. wall;

The third pipe section is located on the second transverse side of the box, its rear end is formed on the second end of the second pipe section, and extends from back to front as a whole, and its front end serves as one of the cooling airflow inlets.
The refrigerator according to claim 2, wherein,

The first pipe section is arranged to be inclined from its front end to its rear end and to the transverse second side; and

The third pipe section is arranged to be inclined from its front end to its rear end and toward the transverse first side.
The refrigerator according to claim 1, wherein,

The condenser is flat as a whole and is horizontally installed on the top of the box, with an air inlet gap formed between the condenser and the top surface of the box. The inside of the condenser defines a plurality of vertically penetrating heat dissipation microchannels; and

The refrigerator further includes: a cooling fan located at the condenser and configured to urge the air in the front space of the box to enter the heat dissipation pipe from the cooling air flow inlet and pass through the cooling air flow outlet in sequence. The air inlet gap enters the heat dissipation microchannel to exchange heat with the condenser.
The refrigerator according to claim 4, wherein the condenser further includes:

Multiple sections of flat tubes, a plurality of flat tubes arranged in parallel and spaced apart and connected in sequence, and the wider side of each flat tube is arranged vertically;

A plurality of fins are arranged vertically between two sections of the flat tubes, and the heat dissipation microchannel is formed between each two fins.
The refrigerator according to claim 5, wherein,

The heat dissipation fan is a centrifugal fan disposed above the flat tube, and the axial air inlet side of the heat dissipation fan is disposed opposite to the heat dissipation microchannel to inhale air from the heat dissipation microchannel and along the Radially to the heat dissipation channel.
The refrigerator according to claim 6, wherein,

The cooling fan is located on the rear side of the flat tube; and

The condenser also includes: a plurality of baffles formed at intervals above the flat tube and extending forward from the front end of the cooling fan to direct the airflow discharged along the radial direction of the cooling fan forward. guide.
The refrigerator according to claim 4, wherein,

The heat dissipation fan is a cross-flow fan, and the cross-flow fan is disposed transversely above the condenser to suck in air from the heat dissipation microchannel and discharge it forward to the heat dissipation channel.
The refrigerator according to claim 7, wherein,

The cooling fan is arranged on the front side of the condenser.
The refrigerator according to claim 1, wherein,

A compressor cabin is provided on the rear side of the bottom of the box;

The refrigeration system also includes a compressor, which is arranged in the compressor cabin and connected to the condenser through a refrigerant pipeline;

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

The bottom steel is provided with a bottom air inlet part and a bottom air outlet part along the transverse direction, and the compressor is located between the bottom air inlet part and the bottom air outlet part.