WO2023179641A1

WO2023179641A1 - Refrigerator

Info

Publication number: WO2023179641A1
Application number: PCT/CN2023/082981
Authority: WO
Inventors: 张军; 左立华
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: 2022-03-22
Filing date: 2023-03-22
Publication date: 2023-09-28
Also published as: CN116817518A

Abstract

A refrigerator, which comprises a refrigerator body and a door body pivotally connected to the refrigerator body; the door body comprises a door casing as well as a first compartment and a second compartment which are formed in the door casing and are arranged as spaced apart in the up-down direction of the refrigerator body; the door body further comprises a communication air channel which is arranged in the door casing and establishes communication between the first compartment and the second compartment; a first air opening in communication with the first compartment and a heat exchange air opening in communication with the second compartment are formed on the door casing; the communication air channel is provided with a first communication opening that is configured as opening towards the first compartment and a second communication opening that is configured as opening towards the second compartment; the first air opening and the first communication opening are each arranged at a different inner wall of the first compartment, and the heat exchange air opening and the second communication opening are each arranged at a different inner wall of the second compartment. The amount of time for heat exchange within a compartment for a gas participating in the refrigeration of the first compartment and the second compartment is prolonged, and the refrigeration efficiency of the compartments is improved.

Description

refrigerator

Technical field

The present invention relates to the field of refrigeration devices, and in particular to a refrigerator.

Background technique

Generally speaking, a refrigerator is a home appliance capable of storing food at low temperature in an internal storage space shielded by a door. With the improvement of people's living standards, users' demand for storage space is also increasing. In addition to increasing the size of the box to store more items, multiple refrigeration compartments will be installed on the door to meet storage requirements.

In the existing door storage solution, the door is connected to the box when it is closed, so that the refrigeration circulating air flow in the box is connected to the inside of the door to cool the compartments in the door. However, due to the size of the door itself, the air outlet and air inlet of the same room are often placed on the same side of the door to facilitate the docking of the door with the box after it is closed, which leads to the involvement of The air flow refrigerated by the compartment is discharged without sufficient heat exchange, and the cooling efficiency of the compartment is low.

Contents of the invention

The object of the present invention is to provide a refrigerator that improves the cooling efficiency of the door compartment.

In order to achieve one of the above-mentioned objects of the invention, one embodiment of the present invention provides a refrigerator, which includes a box body and a door body pivotally connected to the box body. The door body includes a door shell and a door formed in the door shell and along the upper and lower sides of the box body. A first chamber and a second chamber are spaced apart in the direction. The door body also includes a communication passage provided in the door shell and connecting the first chamber and the second chamber. A communication channel is formed on the door shell to communicate with the second chamber. The first air outlet of one room is connected to the heat exchange air outlet of the second room, and the communication channel has a first communication port open to the first room and a second communication port open to the second room, The first air outlet and the first communication opening are respectively provided on different inner walls of the first compartment, and the heat exchange air outlets and the second communication opening are respectively provided on different inner walls of the second compartment.

As a further improvement of an embodiment of the present invention, the first communication port and the second communication port are respectively provided on the same side of the first chamber and the second chamber.

As a further improvement of an embodiment of the present invention, the refrigerator further includes an ice maker disposed in the first chamber and/or the second chamber, and the door shell includes a first inner bag forming the first chamber, In the second inner bag of the second compartment, the communication channel is provided on the side of the first inner bag and the second inner bag away from the door connecting box.

As a further improvement of an embodiment of the present invention, the heat exchange air outlet is set as an air inlet, the first air outlet is set as an air outlet, the horizontal height of the second communication opening is smaller than the horizontal height of the heat exchange air outlet, and the heat exchange air outlet is configured as an air inlet. The horizontal height of the hot air outlet is smaller than the horizontal height of the first communication opening.

As a further improvement of one embodiment of the present invention, the door body further includes a heat exchange air duct disposed in the door shell and connected to the heat exchange air outlet, and the heat exchange air duct has a second heat exchanger opening open toward the second compartment. Hot port, the second heat exchange port extends along the up and down direction of the box body and is provided through the second inner bag. The ice maker is installed in the second room and is located directly below the second heat exchange port.

As a further improvement of an embodiment of the present invention, the heat exchange air outlet is set as an air outlet, the first air outlet is set as an air inlet, and the ice making machine is arranged in the first room and located below the first air outlet.

As a further improvement of an embodiment of the present invention, the communication channel has a first wall opposite to the first inner tank and a second wall opposite to the second inner tank, and the first communication opening is provided on the first wall , and extends along the horizontal direction of the box body through the first inner bag. The second communication port is provided on the second wall, and extends along the horizontal direction of the box body through the second inner bag.

As a further improvement of one embodiment of the present invention, the heat exchange air duct also has a first heat exchange port open to the first compartment, and a heat exchanger at the same level as the heat exchange air port is provided in the heat exchange air duct. A partition is provided with a first damper on a side of the partition close to the first heat exchange port to adjust the air volume passing through the first heat exchange port.

As a further improvement of one embodiment of the present invention, a second damper is provided on the side of the partition close to the second heat exchange port and in the heat exchange air duct to control the air volume passing through the second heat exchange port. adjust.

As a further improvement of an embodiment of the present invention, a second air outlet connected to the second compartment is also formed on the door shell, the first heat exchange outlet is set as the air inlet of the first compartment, and the first air outlet is set as The air outlet of the first compartment, the second heat exchange outlet is set as the air inlet of the second compartment, and the second air outlet is set as the air outlet of the second compartment.

As a further improvement of an embodiment of the present invention, the door shell further includes an inner shell that accommodates a first inner tank and a second inner tank, and the first air outlet and the heat exchange air outlet are located on one side of the door body connected to the box body. They are arranged on the inner shell along the up and down direction of the box body, and the first air outlets extend along the horizontal direction of the box body and are arranged through the first inner bladder.

As a further improvement of one embodiment of the present invention, the heat exchange air duct and the heat exchange air outlet are at the same level and are placed between the first inner bag and the second inner bag.

As a further improvement of one embodiment of the present invention, the door shell further includes an outer shell connected to the front side of the inner shell, a heat preservation cavity formed between the inner shell and the outer shell, the outer shell is pivotally connected and covers the front side of the first compartment. The first door, the second door pivotally connected to the shell and covering the front side of the second compartment, the heat exchange air duct and the connecting air duct are both arranged in the heat preservation cavity, in the heat preservation cavity, in the heat exchange air duct There is heat insulation on the front side.

Compared with the prior art, in the embodiment of the present invention, the first air outlet and the third air outlet participating in the refrigeration cycle of the first room One communication port is respectively located on different inner walls of the first chamber, and the heat exchange air outlet and the second communication port participating in the refrigeration cycle of the second chamber are respectively located on different inner walls of the second chamber, so that the heat exchange ports participating in the first chamber and the second chamber The time for the refrigerant gas to exchange heat in the compartment is increased, which improves the refrigeration efficiency of the compartment.

Description of the drawings

Figure 1 is a schematic three-dimensional view of a refrigerator in a preferred embodiment of the present invention;

Figure 2 is a three-dimensional schematic view of the door body in Figure 1, in which both the first door and the second door are in an open state;

Figure 3 is a cross-sectional view of the door body at A-A in Figure 2;

Figure 4 is a partial view of the heat exchange air duct in Figure 3;

Figure 5 is a cross-section of the door body at A-A in another preferred embodiment of the present invention;

Figure 6 is a cross-sectional view of the door body at B-B in Figure 1 .

Detailed ways

The present invention will be described in detail below with reference to the specific embodiments shown in the accompanying drawings. However, these embodiments do not limit the present invention. Structural, method, or functional changes made by those of ordinary skill in the art based on these embodiments are all included in the protection scope of the present invention.

It should be understood that terms used herein such as "upper," "lower," "outer," "inner," and the like to express relative positions in space are for convenience of illustration to describe the relative position of an element or feature as shown in the drawings. relationship to another unit or feature. The spatially relative terms may be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures.

The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly. As in the present invention, for convenience of description, when the refrigerator is in normal use, the direction toward the ground is downward, the direction away from the ground is upward; the direction parallel to the ground is horizontal, and the direction perpendicular to the ground is vertical. Direction; the side closer to the user is the front side, and the side farther from the user is the back side.

Referring to Figures 1 to 4, a preferred embodiment of the present invention provides a refrigerator. The refrigerator can also be other refrigeration equipment using air cooling.

Specifically, as shown in FIG. 1 , a refrigerator includes a box body 10 and a door body 20 pivotally connected to the box body 10 . In this embodiment, the refrigerator further includes a refrigeration air duct provided in the box 10 and a compressor, a condenser, and an evaporator connected through pipelines to provide cooling to the box 10 and the storage compartment in the door. Among them, the cold energy generated by the evaporator in the evaporation chamber will be continuously transported from the refrigeration air duct to each storage room through the evaporation fan. The door 20 is a refrigerator compartment door located on the upper side of the refrigerator, thereby making it convenient for users to access. When the door body 20 is closed, the front The cooling air ducts are connected to the internal compartments of the door body 20 to deliver the cold energy generated by the evaporator to each compartment in the door body 20 .

Referring to FIG. 2 , specifically, the door 20 includes a door shell 21 and a first compartment 23 and a second compartment 25 formed in the door shell 21 and spaced apart along the up and down direction of the box 10 . In this embodiment, the first chamber 23 and the second chamber 25 are arranged adjacent to each other and isolated from each other, and their respective temperatures can be set according to the needs of the user. Under the condition that the area of the door body 20 is the same, the size of the door body 20 in the left and right directions can be reduced. In some embodiments, the first chamber 23 and the second chamber 25 may also be spaced apart along the left and right directions.

Referring to FIG. 3 , further, the door body 20 further includes a communication channel 29 provided in the door shell 21 and connecting the first chamber 23 and the second chamber 25 . In this embodiment, the communication channel 29 can maintain the internal air pressure balance of the first chamber 23 and the second chamber 25. When the temperature difference between the two chambers is large, one of the chambers can exchange heat with the other chamber. , to avoid excessive temperature in one of the two compartments. Moreover, since the first compartment 23 and the second compartment 25 are internally connected, the two compartments can share the air inlet and/or the air outlet, thereby saving the manufacturing cost of the door body 20 .

Specifically, the door shell 21 is formed with a first air outlet 21 a communicating with the first compartment 23 and a heat exchange air outlet 21 c communicating with the second compartment 25 . In this embodiment, the first air outlet 21a and the heat exchange air outlet 21c are used to connect with the air inlet and outlet of the aforementioned refrigeration air duct, so as to transport the cold energy in the evaporation chamber to the two rooms for heat exchange and cooling. The heat exchange air outlet 21 may be directly connected to the second compartment, or may be indirectly connected to the second compartment 25 through an air duct member.

Specifically, the communication channel 29 has a first communication port 29a open toward the first chamber 23 and a second communication port 29b open toward the second chamber 25 . In this embodiment, a communication channel cavity is formed inside the communication channel 29, and the first communication opening 29a and the second communication opening 29b are both connected to the communication channel cavity, so that they are in communication with each other.

Furthermore, the first air outlet 21a and the first communication opening 29a are respectively provided on different inner walls of the first compartment 23, and the heat exchange air outlets 21c and second communication openings 29b are respectively provided on different inner walls of the second compartment 25. .

In this embodiment, since the first air outlet 21a and the first communication opening 29a are located on different inner walls of the first chamber 23, the first air outlet 21a and the first communication opening 29a are in different planes, so that the entrance into the first chamber 23 is The air outlet and the air outlet discharging the first chamber 23 are on different planes, thereby forming a larger range of gas flow in the first chamber 23, increasing the heat exchange time of the cooling air flow in the first chamber 23, and improving the efficiency of the second chamber 23. The cooling effect of a room 23. On the other hand, relative to the fact that the first air outlet 21a and the first communication port 29a are on the same plane, the time from the refrigerant gas entering the first chamber 23 to being discharged from the first chamber 23 in this solution is increased, thereby improving the The cooling efficiency of the first room 23 is increased.

In the same way, the second air outlet 21b and the second communication opening 29b are respectively provided on different inner walls of the second compartment 25, so that the second air outlet 21b and the second communication opening 29b are on different planes, thereby entering the air inlet of the second compartment 25. Being on a different plane from the air outlet discharging the second chamber 25 can also improve the cooling effect of the second chamber 25 and improve the cooling efficiency of the second chamber 25 .

Therefore, the first air outlet 21a and the first communication opening 29a participating in the refrigeration cycle of the first compartment 23 are respectively located on different inner walls of the first compartment 23, and the heat exchange air opening 21c and the second communication opening participating in the refrigeration cycle of the second compartment 25 29b are respectively located on different inner walls of the second compartment 25, so that the time for the refrigerant gas participating in the first compartment 23 and the second compartment 25 to exchange heat in the compartment is increased, thereby improving the refrigeration efficiency of the compartment.

Furthermore, the first communication port 29a and the second communication port 29b are respectively provided on the same side of the first chamber 23 and the second chamber 25. In this embodiment, the communication channel 29, the first communication port 29a and the second communication port 29b are all located on the same side of the two compartments, thereby reducing the corner design of the communication sealing channel 29 and facilitating the connection between the first communication port 29a and the second communication port 29a. The two communication ports 29b are interconnected.

Furthermore, the refrigerator 10 further includes an ice maker 30 disposed in the first chamber 23 and/or the second chamber 25 . In this embodiment, the ice maker 30 is installed in the door 20 to facilitate the user to take out ice.

Specifically, the door shell 21 includes a first inner bladder 21d forming a first compartment 23 and a second inner bladder 21e forming a second compartment 25. The communication passage 29 is provided between the first inner bladder 21d and the second inner bladder 21e. The second inner bladder 21e is connected to one side of the box 10 away from the door 20 . In this embodiment, the communication channel 29 is provided on the side of the door 20 away from the connection box 10, and the first communication port 29a and the second communication port 29b are provided on the same side of the two compartments, which can save connection costs. The ventilation duct 29 occupies less space, thereby improving the space utilization of the two compartments in the door shell 21 .

In some embodiments, the communication channel 29 can also be provided on the side of the door body 20 close to the connection box 10 or at other locations, and the first communication port 29a and the second communication port 29b can also be provided on the connection between two compartments. Different sides.

Continuing to refer to Figure 3, specifically, the heat exchange air outlet 21c is set as an air inlet, the first air outlet 21a is set as an air outlet, and the horizontal height of the second communication opening 29b is smaller than the level of the heat exchange air outlet 21c. height, the horizontal height of the heat exchange air outlet 21c is smaller than the horizontal height of the first communication port 29a.

In this embodiment, since the second compartment 25 is located below the first compartment 23, the cold air entering the second compartment 25 through the heat exchange air outlet 21c will sink, thereby smoothly entering the second compartment below the heat exchange air outlet 21c. Communication port 29b. When the cold air completely fills the second room 25, the cold air in the communication channel 29 will be gradually blown to the first communication port 29a above the heat exchange air outlet 21c, and finally enters the first room 23, so as to ensure the first communication port 29a above the heat exchange air outlet 21c. Priority cooling of the second room 25.

As shown in Figure 3, the cold energy formed in the evaporation chamber enters the second chamber 25 through the heat exchange air outlet 21c. The air flow that has completed heat exchange in the second chamber 25 will enter the communication channel 29 through the second communication port 29b. within lane 29 The airflow is discharged through the first communication port 29a and enters the first chamber 23, and then the airflow that has completed heat exchange in the first chamber 23 is finally discharged through the first air outlet 21a and returns to the evaporation chamber, and so on.

Therefore, the second compartment 25 will be cooled before the first compartment 23, that is, the second compartment 25 cools down faster than the first compartment 23 under the same conditions, so the second compartment 25 can preferably be a freezing compartment.

In other embodiments, the heat exchange air outlet 21c is set as an air outlet, the first air outlet 21a is set as an air inlet, and the ice making machine 30 is arranged in the first chamber 23 and is located below the first air outlet 21a. . In this embodiment, the first chamber 23 is cooled before the second chamber 25 , that is, the cooling speed of the first chamber 23 is faster than that of the first chamber 23 under the same conditions. Moreover, the first air outlet 21a is located above the ice making machine 30. At this time, the first air outlet 21a serves as the air inlet of the first compartment 23. After the cold air is input into the first compartment 23, the cold air sinks and the cold air directly sinks. It flows to the ice tray to accelerate the ice making process of the ice making machine 30 and improve the refrigeration efficiency of the ice making machine 30 .

Furthermore, the door body 20 further includes a heat exchange air channel 27 provided in the door shell 21 and connected to the heat exchange air outlet 21c. In this embodiment, the heat exchange air outlet 21c is connected to the second chamber 25 through the heat exchange air duct 27, thereby changing the direction of the air flow entering the second chamber 25.

Specifically, the heat exchange air duct 27 is at the same level as the heat exchange air outlet 21c, and includes a side wall 27c opposite to the heat exchange air outlet 21c. The heat exchange air outlet 21c extends along the horizontal direction of the box 10 and penetrates it. Side walls 27c are provided.

In this embodiment, since the heat exchange air duct 27 and the heat exchange air outlet 21c are at the same level, and the heat exchange air outlet 21c extends in the horizontal direction through the side wall 27c, the airflow enters or exits the heat exchange air duct 27 through the heat exchange air outlet 21c. The operation is smoother and the air cooling efficiency is improved.

The heat exchange air duct 27 also includes a top wall 27d opposite the first inner tank 21d and a bottom wall 27e opposite the second inner tank 21e. The top wall 27d and the bottom wall 27e are connected to the side wall 27c along the box body. 10 Both ends in the up and down directions. In this embodiment, the top wall 27d of the heat exchange air duct 27 is attached to the lower wall of the first inner tank 21d, thereby saving the length of the connecting pipeline between the heat exchange air duct 27 and the first inner tank 21d. The bottom wall 27e of the heat exchange air duct 27 is attached to the upper wall of the second inner bladder 21e, thereby saving the length of the connecting pipeline between the heat exchange air duct 27 and the second inner bladder 21e.

Among them, the first heat exchange port 27a is provided on the top wall 27d and extends through the first inner bladder 21d along the up and down direction of the box 10. The second heat exchange port 27b is provided on the bottom wall 27e. And extends along the up and down direction of the box body 10 and is provided through the second inner bladder 21e. In this embodiment, the extension direction of the first heat exchange port 27a is perpendicular to the extension direction of the heat exchange air port 21c, and the extension direction of the second heat exchange port 27b is perpendicular to the extension direction of the heat exchange air port 21c, thereby increasing the airflow during heat exchange. The flow time between the air outlet 21c and the first heat exchange outlet 27a, and between the heat exchange air outlet 21c and the second heat exchange outlet 27b, then increases the cooling time of the cooling air flow in the two rooms, further improving the cooling efficiency.

Specifically, the heat exchange air duct 27 has a second heat exchange port 27b open toward the second compartment 25. The second heat exchange port 27b extends along the up and down direction of the box 10 and penetrates the second inner bladder 25. The ice maker 30 is installed in the second chamber 25 and is located directly below the second heat exchange port 27b. In this embodiment, the air flow entering the heat exchange air duct 27 from the heat exchange vent 21c will enter the second chamber through the second heat exchange vent 27b, and the second heat exchange vent 27b will blow into the second chamber along the vertical direction. 25, and blows toward the ice tray of the ice machine located directly below the second heat exchange port 27b, thereby accelerating the ice making process of the ice machine 30 and improving the refrigeration efficiency of the ice machine 30.

Specifically, the communication channel 29 has a first wall 29c opposite to the first inner bag 21d, and a second wall 29d opposite to the second inner bag 25. In this embodiment, the communication channel 29 extends along the up and down direction of the box 10 . The first wall 29c of the communication channel 29 is attached to the left side wall of the first inner container 21d, thereby saving the length of the connecting pipeline between the communication channel 29 and the first inner container 21d. The second wall 29d of the communication channel 29 is attached to the left side wall of the second liner 21e, thereby saving the length of the connecting pipeline between the second wall 29d and the second liner 21e.

Furthermore, the first communication port 29a is provided on the first wall 29c and extends along the horizontal direction of the box 10 through the first inner bladder 21d. The second communication port 29b is provided on the second wall 29d. And extends along the horizontal direction of the box body 10 and is provided through the second inner bladder 21e.

In this embodiment, in the second chamber 25, the second communication port 29b extends along the horizontal direction, and the second heat exchange port 27b extends along the up and down direction. Therefore, the second communication port 29b and the second heat exchange port 27b The extending directions of the air inlet paths into the second chamber 25 are perpendicular to each other. In this way, the air inlet path into the second chamber 25 and the air outflow path out of the second chamber 25 are perpendicular to each other, making the air flow in the second chamber 25 smoother and at the same time, the air inlet path is perpendicular to each other. Cooling efficiency is higher.

Moreover, the extension directions of the first communication port 29a and the second communication port 29b are perpendicular to the extension direction of the communication channel 29, so the extension directions of the first communication port 29a and the second communication port 29b are parallel to each other. In this way, the inlet The air flow out of the communication channel 29 is parallel to each other and perpendicular to the direction of the air flow in the communication channel 29 , so that the air flow entering the first room 23 is enhanced, thereby improving the air cooling effect of the first room 23 .

Referring to FIG. 4 , further, the heat exchange air duct 27 also has a first heat exchange port 27 a that is open toward the first chamber 23 . In this embodiment, the first heat exchange port 27a extends along the up and down direction and is provided as an air inlet of the first chamber 23 for transporting the air flow in the heat exchange air duct 27 to the first chamber 23 . In the first compartment 23, the extension direction of the first communication port 29a and the extension direction of the first air outlet 21a are perpendicular to each other. In this way, the air inlet path into the first compartment 23 and the outlet path out of the first compartment 23 are separated. The air paths are perpendicular to each other, so that the gas flow in the first chamber 23 is smoother and the air cooling efficiency is higher.

Furthermore, the heat exchange air duct 27 is provided with a partition plate 27f at the same level as the heat exchange air outlet 21c. In this embodiment, the partition plate 27f is located between the first heat exchange port 27a and the second heat exchange port 27b. When the heat exchange air outlet 21c is used as an air outlet, the arrangement of the partition 27f can prevent the first heat exchange outlet 27a from Impact occurs when the hot port 27b is directly convection; when the heat exchange air port 21c is used as an air inlet, the setting of the partition 27f can prevent the air flow in the heat exchange air duct 27 from entering the first heat exchange port 27a and the second heat exchanger in an orderly manner. The opening 27b is used to accurately control the temperatures of the first chamber 23 and the second chamber 25, and to avoid odor cross-talk between the first chamber 23 and the second chamber 25. The partition 27f is at the same level as the heat exchange air outlet 21c, which can just divide the heat exchange air duct 27 into two air duct cavities of equal volume, upper and lower. When the heat exchange air outlet 21c is used as an air inlet, the first heat exchange outlet 27a and the second heat exchange port 27b can evenly discharge the cooling air flow in the heat exchange air duct 27; when the heat exchange air port 21c is used as an air outlet, it enters the heat exchange air duct through the first heat exchange port 27a and the second heat exchange port 27b. The air volume of 27 is also the same, and when they are discharged from the heat exchange air outlet 21c together, there will be no uneven air pressure in the two air duct cavities.

Furthermore, a first damper 27g is provided on the side of the partition plate 27f close to the first heat exchange port 27a to adjust the air volume passing through the first heat exchange port 27a. In this embodiment, the first heat exchange port 27a is set as the air inlet of the first chamber 23. By adjusting the opening of the first damper 27g, the heat exchange air duct 27 is connected to the first chamber 23 and the second chamber 25. , thereby accelerating the cooling of the first chamber 23.

Furthermore, a second damper 27h is provided on the side of the partition plate 27f close to the second heat exchange port 27b and in the heat exchange air duct 27 to adjust the air volume passing through the second heat exchange port 27b. . In this embodiment, the setting of the second damper 27h, combined with the first damper 27g, can accurately adjust the cooling amount entering the first room 23 and the second room 25 through the heat exchange air outlet 27 to meet the requirements of each room. Refrigeration needs.

Specifically, the partition plate 27f has a free end close to the heat exchange air outlet 21c and a fixed end away from the heat exchange air outlet 21c. The first damper 27g and the second damper 27h are both provided at the free end of the partition plate 27f.

As shown in Figure 4, except for one free end of the partition 27f that is opposite to the side wall 27c, the other three ends are sealed and fixed with the inner wall of the heat exchange air duct 27, thereby forming a gap between the partition 27f and the top wall 27d. In addition to the first cavity, a second cavity is formed between the partition 27f and the bottom wall 27e. Among them, the first cavity is connected with the first heat exchange port 27a and the heat exchange air port 21c respectively. The first damper 27g is disposed in the first cavity and is located between the first heat exchange port 27a and the heat exchange air port 21c. The air volume passing through the first heat exchange port 27a is adjusted to adjust the air volume entering or exiting the first chamber 23. The second cavity is connected to the second heat exchange port 27b and the heat exchange air port 21c respectively. The second damper 27h is provided in the second cavity and is located between the second heat exchange port 27b and the heat exchange air port 21c, and can be adjusted to pass through. The air volume of the second heat exchange port 27b is adjusted to adjust the air volume entering or exiting the second compartment 25.

Referring to FIG. 5 , further, the door shell 21 is also formed with a second air outlet 21 b connected to the second compartment 25 , and the first heat exchange outlet 27 a is configured as an air inlet of the first compartment 23 . The first air outlet 21a is set as the air outlet of the first compartment 23, the second heat exchange outlet 27b is set as the air inlet of the second compartment 25, and the second air outlet 21b is set as the air outlet of the second compartment 25.

In this embodiment, the first chamber 23 and the second chamber 25 each have independent air inlets and air outlets. In this way, the first chamber 23 and the second chamber 25 can be set to different temperatures as needed. As shown in Figure 5, the cold energy formed in the evaporation chamber enters the heat exchange air duct 27 through the heat exchange air outlet 21c. Since the first air door 27g and the second air door 27h are both open, the air flow in the heat exchange air duct 27 can pass through the first air exchanger 27. The hot port 27a enters the first chamber 23 and enters the second chamber 25 through the second heat exchange port 27b. The air flow that has completed heat exchange in the first chamber 23 will be discharged through the first air port 21a and return to the evaporation chamber. The air flow that has completed heat exchange in the second chamber 25 will also be discharged through the second air outlet 21b and return to the evaporation chamber, and so on.

Referring to FIG. 6 , further, the door shell 21 further includes an inner shell 21f that accommodates the first inner bag 21d and the second inner bag 21e. In this embodiment, when the door 20 of the refrigerator is closed, the inner shell 21f is placed in the storage compartment of the box 10 and abuts against the inner wall of the storage compartment, so that the two compartments of the door 20 are in contact with each other. The cooling air ducts are connected.

Specifically, the first air outlet 21a and the heat exchange air outlet 21c are located on the side of the door 20 connected to the box 10, and are arranged on the inner shell 21f along the up and down direction of the box 10. In this embodiment, the first air outlet 21a, the heat exchange air outlet 21c and the second air outlet 21b are arranged on the same side of the door body 20 along the up and down direction, so that when the door body 20 is closed, the inner shell 21f and the storage compartment of the box 10 The inner wall of the door body 20 is docked, and the manufacturing of the door body 20 is facilitated.

Furthermore, the first air outlet 21a extends along the horizontal direction of the box 10 and is provided through the first inner bladder 21d. In this embodiment, the airflow of the first air outlet 21a extends in the horizontal direction and is parallel to the extending direction of the first communication port 29a, so that the airflow in the first chamber 23 is discharged faster.

In addition, the second air outlet 21b extends along the horizontal direction of the box 10 and is provided through the second inner bladder 21e. When both the first damper 27g and the second damper 27h are in the open state, in the first chamber 23, the first air outlet 21a extends along the horizontal direction, and the first heat exchange outlet 27a extends along the up and down direction, so the first air outlet The extending directions of 21a and the first heat exchange port 27a are perpendicular to each other. In this way, the air inlet path into the first chamber 23 and the air outlet path out of the first chamber 23 are perpendicular to each other, so that the air in the first chamber 23 While the gas flow is smoother, the air cooling efficiency is higher. Similarly, in the second compartment 25, the second air outlet 21b extends along the horizontal direction, and the second heat exchange outlet 27b extends along the up and down direction. Therefore, the extension directions of the second air outlet 21b and the second heat exchange outlet 27b are perpendicular to each other. , in this way, the air inlet path into the second compartment 25 and the air outlet path out of the second compartment 25 are perpendicular to each other, so that the air flow in the second compartment 25 is smoother and the air cooling efficiency is higher.

Furthermore, the heat exchange air duct 27 and the heat exchange air outlet 21c are at the same level. In this embodiment, since the heat exchange air duct 27 and the heat exchange air outlet 21c are at the same level, and the heat exchange air outlet 21c extends in the horizontal direction through the side wall 27c, the airflow enters or exits the heat exchange air duct 27 through the heat exchange air outlet 21c. The operation is smoother and the air cooling efficiency is improved.

Further, the heat exchange air duct 27 is placed between the first inner bag 21d and the second inner bag 21e. This embodiment , the heat exchange air duct 27 extends along the left and right directions and is located between the first inner tank 21d and the second inner tank 21e, rationally utilizing the internal space of the door shell 21 and reducing the space occupied by the heat exchange air duct 27 , thereby improving the space utilization of the two compartments in the door shell 21.

Furthermore, the first heat exchange port 27a and the second heat exchange port 27b are provided on opposite sides of the heat exchange air duct 27 along the up and down direction of the box 10 . In this embodiment, the first heat exchange port 27a and the second heat exchange port 27b are respectively provided at the upper and lower ends of the heat exchange air duct 27, which further saves the space occupied by the heat exchange air duct 27 and facilitates the connection between the heat exchange air duct 27 and The first chamber 23 and the second chamber 25 are connected and connected.

Specifically, the door shell 21 also includes an outer shell 21g connected to the front side of the inner shell 21f, a heat preservation cavity 21h formed between the inner shell 21f and the two inner bags, a pivotally connected outer shell 21g and covering the first compartment. The first door 21i on the front side of 23 is pivotally connected to the housing 21g and covers the second door 21j on the front side of the second compartment 25. In this embodiment, as shown in Figure 2, the first room 23 and the second room 25 have independently opened and closed first doors 21i and second doors 21j, thereby further ensuring that the first room 23 and the second room 25 The temperatures inside are individually adjustable to meet the user's needs for multiple compartments with multiple different temperatures.

Specifically, the heat exchange air duct 27 and the communicating air duct 29 are both arranged in the heat preservation cavity 21h. In this embodiment, the heat exchange air duct 27 and the connecting air duct 29 are fixed in the heat preservation cavity 21h through a preset method, and later the heat preservation cavity 21h is filled with heat preservation material.

Furthermore, a heat insulation member 22 is provided in the heat preservation cavity 21h and on the front side of the heat exchange air duct 27. In this embodiment, the heat exchange air duct 27 is located between the first door 21i and the second door 21j, so that there is less insulation material on the front side of the heat exchange air duct 27. When cold air passes through the heat exchange air duct 27, it will Condensation water is formed on 21g, and the heat insulator 22 is arranged between the first door 21i and the second door 21j, which can limit the formation of condensation water on the shell 21g on the front side of the heat exchange air duct 27. The heat insulation piece can be made of VIP (abbreviation for Vacuum Insulation Panel) material and covered on the front side of the heat exchange air duct 27 .

It should be understood that although this specification is described in terms of implementations, not each implementation only contains an independent technical solution. This description of the specification is only for the sake of clarity. Persons skilled in the art should take the specification as a whole and understand each individual solution. The technical solutions in the embodiments can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

The series of detailed descriptions listed above are only specific descriptions of feasible implementations of the present invention. They are not intended to limit the protection scope of the present invention. Any equivalent implementations or implementations that do not deviate from the technical spirit of the present invention are not intended to limit the protection scope of the present invention. All changes should be included in the protection scope of the present invention.

Claims

A refrigerator includes a box body and a door body pivotally connected to the box body. The door body includes a door shell and a first chamber and a second chamber formed in the door shell and spaced apart along the up and down direction of the box body. It is characterized in that the door body also includes a communication passage provided in the door shell and connecting the first compartment and the second compartment, and a first air outlet communicating with the first compartment and a first air outlet communicating with the second compartment are formed on the door shell. The heat exchange air outlet of the two compartments, the communication channel has a first communication opening that is open to the first compartment, and a second communication opening that is open to the second compartment. The first air outlet and the first communication opening They are respectively arranged on different inner walls of the first compartment, and the heat exchange air outlets and the second communication openings are respectively arranged on different inner walls of the second compartment.
The refrigerator according to claim 1, wherein the first communication port and the second communication port are respectively provided on the same side of the first compartment and the second compartment.
The refrigerator according to claim 2, wherein the refrigerator further includes an ice maker disposed in the first chamber and/or the second chamber, and the door shell includes a first inner portion forming the first chamber. The first inner bag and the second inner bag forming the second compartment are arranged on the side of the first inner bag and the second inner bag away from the door connecting the box.
The refrigerator according to claim 3, wherein the heat exchange air outlet is configured as an air inlet, the first air outlet is configured as an air outlet, and the horizontal height of the second communication opening is smaller than the horizontal height of the heat exchange air outlet, The horizontal height of the heat exchange air outlet is smaller than the horizontal height of the first communication opening.
The refrigerator according to claim 4, wherein the door body further includes a heat exchange air duct arranged in the door shell and connected to the heat exchange air outlet, and the heat exchange air duct has an opening that is open toward the second compartment. The second heat exchange port extends along the up and down direction of the box body and is provided through the second inner bag. The ice maker is disposed in the second room and is located directly below the second heat exchange port.
The refrigerator of claim 3, wherein the heat exchange air outlet is configured as an air outlet, the first air outlet is configured as an air inlet, and the ice maker is installed in the first room and located between the first air outlet. below.
The refrigerator of claim 5, wherein the communication passage has a first wall opposite to the first inner tank and a second wall opposite to the second inner tank, and the first communication opening is disposed on the first inner tank. The second communication port is provided on one wall and extends along the horizontal direction of the box through the first inner bag. The second communication port is provided on the second wall and extends along the horizontal direction of the box through the second inner bag.
The refrigerator according to claim 5, wherein the heat exchange air duct further has a first heat exchange port open to the first compartment, and a heat exchange air port is provided in the heat exchange air duct at the same level as the heat exchange air port. The partition board within the height is provided with a first air door on the side of the partition board close to the first heat exchange port to control the air flowing through the first heat exchange port. Adjust the air volume.
The refrigerator according to claim 8, wherein a second air door is provided on the side of the partition close to the second heat exchange port and in the heat exchange air duct to prevent the air from passing through the second heat exchange port. to adjust the air volume.
The refrigerator according to claim 9, wherein a second air outlet connected to the second compartment is also formed on the door shell, and the first heat exchange outlet is configured as an air inlet of the first compartment, a first heat exchange vent, and an air inlet of the first compartment. The air outlet is set as the air outlet of the first compartment, the second heat exchange outlet is set as the air inlet of the second compartment, and the second air outlet is set as the air outlet of the second compartment.
The refrigerator according to claim 3, wherein the door shell further includes an inner shell for accommodating a first inner pot and a second inner pot, and the first air outlet and the heat exchange air outlet are located at the door connecting box. One side is arranged on the inner shell along the up and down direction of the box body, and the first air outlets extend along the horizontal direction of the box body and are provided through the first inner bladder.
The refrigerator according to claim 11, wherein the heat exchange air duct and the heat exchange air outlet are at the same level and are placed between the first inner pot and the second inner pot.
The refrigerator of claim 12, wherein the door shell further includes an outer shell connected to the front side of the inner shell, a heat preservation cavity formed between the inner shell and the outer shell, the outer shell is pivotally connected and covers the first compartment. The first door on the front side of the chamber is pivotally connected to the outer shell and covers the second door on the front side of the second chamber. The heat exchange air duct and the communication air duct are both arranged in the heat preservation cavity. The front side of the hot air duct is provided with a heat insulation piece.