WO2023179640A1

WO2023179640A1 - Refrigerator

Info

Publication number: WO2023179640A1
Application number: PCT/CN2023/082980
Authority: WO
Inventors: 张军; 左立华; 张方友
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: CN116817519A

Abstract

A refrigerator, which comprises a refrigerator body and a door body pivotally connected with 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; the door body further comprises a heat exchange 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, a second air opening in communication with the second compartment, and a heat exchange air opening in communication with the heat exchange air channel are formed on the door casing; the heat exchange air channel has a first heat exchange opening that is configured as open towards the first compartment and a second heat exchange opening that is configured as open towards the second compartment; the first air opening, the first heat exchange opening, and the heat exchange air opening form cold air circulation of the first compartment, and the second air opening, the second heat exchange opening, and the heat exchange air opening form cold air circulation of the second compartment. Independent incoming and outgoing air for the first compartment and the second compartment satisfies a requirement for setting the first compartment and the second compartment to different temperatures.

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, multiple compartments are connected to the refrigeration air duct of the refrigerator through the same air inlet and outlet. This results in the temperature of the multiple compartments tending to be the same, which cannot satisfy the user's needs for multiple compartments. Each room has different temperature requirements.

Contents of the invention

An object of the present invention is to provide a refrigerator in which multiple compartments of the door body have different temperatures.

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 first chamber formed in the door shell. The second compartment, the door body also includes a heat exchange air duct arranged in the door shell and connecting the first compartment and the second compartment, and a first air outlet connected to the first compartment is formed on the door shell. The second air outlet is connected to the second compartment and the heat exchange air outlet is connected to the heat exchange air duct. The heat exchange air duct has a first heat exchange outlet open to the first compartment and a third heat exchange outlet open to the second compartment. Two heat exchange outlets, the first air outlet, the first heat exchange outlet and the heat exchange air outlet form the cold air circulation of the first compartment, and the second air outlet, the second heat exchange outlet and the heat exchange outlet form the cold air circulation of the second compartment. Air conditioning circulation.

As a further improvement of an embodiment of the present invention, the first air outlet and the first heat exchange outlet are respectively provided on different inner walls of the first compartment, and the second air outlet and the second heat exchange outlet are respectively provided on the second compartment. of different inner walls.

As a further improvement of an embodiment of the present invention, the door shell includes a first inner bag forming a first compartment and a second inner bag forming a second compartment. The first inner bag and the second inner bag are arranged along the The box is spaced apart in the up and down direction, the heat exchange air duct is arranged between the first liner and the second liner, and the first heat exchange port and the second heat exchange port are disposed in the box along the up and down direction. Opposite sides of the heat exchange air duct.

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 include side walls opposite to the heat exchange air outlet. The heat exchange air outlet extends along the horizontal direction of the box and through Set through side walls.

As a further improvement of one embodiment of the present invention, the heat exchange air duct further includes a top wall opposite to the first inner tank and a bottom wall opposite to the second inner tank. The top wall and the bottom wall are connected to the edge of the side wall. At both ends of the box in the up and down direction, the first heat exchange port is provided on the top wall and extends through the first inner bag along the up and down direction of the box, and the second heat exchange port is provided on the bottom wall, And extends through the second inner bag along the up and down direction of the box body.

As a further improvement of one embodiment of the present invention, the heat exchange air duct further includes a partition arranged in the heat exchange air duct and at the same level as the heat exchange air outlet. The partition plate is located between the first heat exchange outlet and the third heat exchange outlet. Between the two heat exchange ports.

As a further improvement of one embodiment of the present invention, the heat exchange air duct further includes a first air door disposed between the partition and the top wall, and a second air door disposed between the partition and the bottom wall. The partition It has a free end close to the heat exchange air outlet and a fixed end away from the heat exchange air outlet. The first damper and the second damper are both arranged at the free end of the partition.

As a further improvement of an embodiment of the present invention, the door shell further includes an inner shell for accommodating a first inner tank and a second inner tank, and the first air outlet, heat exchange air outlet and second air outlet are located in the door connection box. on one side of the box and arranged on the inner shell along the up and down direction of the box. The first air outlet extends along the horizontal direction of the box and penetrates the first inner bag. The second air outlet extends along the horizontal direction of the box. And runs through the second liner setting.

As a further improvement of one embodiment of the present invention, the refrigerator further includes an ice maker disposed in the first chamber and/or the second chamber, and the first air outlet and the second air outlet are simultaneously configured as air inlets or air outlets. , and set the heat exchange air outlet as an air outlet or air inlet matching the first air outlet and the second air outlet.

As a further improvement of an embodiment of the present invention, the first air outlet and the second air outlet are set as air outlets at the same time, and the heat exchange air outlet is set as an air inlet. The ice making machine is arranged in the second room and is located in the second room. Directly below the second heat exchange port.

As a further improvement of an embodiment of the present invention, the first air outlet and the second air outlet are set as air inlets at the same time, and the heat exchange air outlet is set as an air outlet. The ice making machine is arranged in the first room and is located in the second room. Below a tuyere.

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 is pivotally connected to the outer shell and covers the second door on the front side of the second compartment. The heat exchange air duct is arranged in the heat preservation cavity.

As a further improvement of an embodiment of the present invention, the door body further includes a communication channel provided in the door shell and connecting the first compartment and the second compartment, and the communication channel has an opening opening toward the first compartment. The first communication port and the second communication port open towards the second compartment, the first heat exchange port and the first communication port are respectively provided Placed on different inner walls of the first compartment, the second heat exchange port and the second communication port are respectively provided on different inner walls of the second compartment.

Compared with the prior art, the first compartment in the embodiment of the present invention uses the first air outlet and the heat exchange air outlet to communicate with the refrigeration cycle of the refrigerator, and the second compartment uses the second air outlet and the heat exchange air outlet to communicate with the refrigeration cycle of the refrigerator. Connected to achieve independent air inlet and outlet of the first room and the second room, meeting the needs of setting different temperatures in the first room and the second room.

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-sectional view of the door body at B-B in Figure 1;

Figure 6 is a cross-sectional view of the door body taken along A-A in another preferred embodiment of the present invention.

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 FIGS. 1 to 5 , a preferred embodiment of the present invention provides a refrigerator. The refrigerator may 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 connected through pipelines. A condenser and an evaporator are used to provide cooling to the storage compartment in the box 10 and the door body. 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 aforementioned cooling air ducts will communicate with 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 body 20 includes a door shell 21 and a first compartment 23 and a second compartment 25 formed in the door shell 21 . 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.

Referring to FIG. 3 , further, the door body 20 further includes a heat exchange air duct 27 disposed in the door shell 21 and connecting the first chamber 23 and the second chamber 25 . In this embodiment, the heat exchange air duct 27 is connected to the first compartment 23 and the second compartment 25 at the same time. That is, a single air duct is connected to two compartments at the same time, thereby reducing the use of air ducts.

Specifically, the door shell 21 is formed with a first air outlet 21a communicating with the first compartment 23, a second air outlet 21b communicating with the second compartment 25, and a heat exchange air outlet 21c communicating with the heat exchange air duct 27. In this embodiment, the first air outlet 21a, the second air outlet 21b, and the heat exchange air outlet 21c are used to connect with the air inlet and air outlet of the aforementioned refrigeration air duct, so as to transport the cold energy in the evaporation room to the two rooms for evaporation. Exchange heat and cool down.

Specifically, the heat exchange air duct 27 has a first heat exchange port 27a open towards the first compartment 23 and a second heat exchange port 27b open towards the second compartment 25 . In this embodiment, the first heat exchange port 27a and the second heat exchange port 27b can be selectively connected to the heat exchange air port 21c, that is, the first heat exchange port 27a and the second heat exchange port 27b can be connected to the heat exchange air port 21c respectively. 21c is connected individually, or the first heat exchange port 27a and the second heat exchange port 27b can be jointly connected to the heat exchange air port 21c. In this way, the first chamber 23 and the second chamber 25 can share a heat exchange air outlet 21c to communicate with the evaporation chamber, thereby reducing the number of air outlets on the door shell 21 .

Specifically, the first air outlet 21a, the first heat exchange outlet 27a and the heat exchange air outlet 21c form the cold air circulation of the first room 23, and the second air outlet 21b, the second heat exchange outlet 27b and the heat exchange air outlet 21c form The air-conditioning circulation of the second room 25. In this embodiment, the first chamber 23 is connected to the cooling air duct of the refrigerator using the first air outlet 21a and the heat exchange air outlet 21c, and the second room 25 is connected to the cooling air duct of the refrigerator using the second air outlet 21b and the heat exchange air outlet 21c. , thereby realizing the independent air inlet and outlet of the first room 23 and the second room 25, and meeting the needs of setting different temperatures in the first room 23 and the second room 25.

Furthermore, the first air outlet 21a and the first heat exchange outlet 27a are respectively provided on different inner walls of the first compartment 23, and the second air outlet 21b and the second heat exchange outlet 27b are respectively provided on different inner walls of the second compartment 25. Different inner walls.

In this embodiment, since the first air outlet 21a and the first heat exchange outlet 27a are located on different inner walls of the first chamber 23, The first air outlet 21a and the first heat exchange outlet 27a are located in different planes, so that the air inlet entering the first compartment 23 and the air outlet exiting the first compartment 23 are located in different planes, thereby forming a relatively large gap in the first compartment 23. The large-scale gas flow increases the heat exchange time of the cooling air flow in the first chamber 23 and improves the cooling effect of the first chamber 23. On the other hand, relative to the fact that the first air port 21a and the first heat exchange port 27a are on the same plane, the time for the refrigerant gas in this solution to enter the first chamber 23 and exit the first chamber 23 is increased, so that The cooling efficiency of the first room 23 is improved.

In the same way, the second air outlet 21b and the second heat exchange outlet 27b are respectively provided on different inner walls of the second compartment 25, so that the second air outlet 21b and the second heat exchange outlet 27b are on different planes, thereby entering the second compartment 25. The air inlet and the air outlet discharging the second chamber 25 are on different planes, which can also improve the cooling effect of the second chamber 25 and improve the cooling efficiency of the second chamber 25 .

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 first inner bladder 21d and the second inner bladder 21e are arranged along the The boxes 10 are spaced apart in the up and down direction. In this embodiment, the first compartment 23 and the second compartment 25 are spaced apart along the up and down direction. 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. Of course, in some embodiments, the first chamber 23 and the second chamber 25 may also be spaced apart along the left and right directions.

Further, the heat exchange air duct 27 is provided between the first inner bag 21d and the second inner bag 21e. In 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 number of heat exchange air ducts 27 occupying space, 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.

Referring to Figure 4, specifically, the heat exchange air duct 27 and the heat exchange air outlet 21c are at the same level, and include a side wall 27c opposite to the heat exchange air outlet 21c. The heat exchange air outlet 21c is along the box 10 extends in the horizontal direction and is provided through the side wall 27c.

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 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 upper and lower sides of the box 10 to both ends. 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.

Furthermore, 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 through the second inner bladder 21e along the up and down direction of the box body 10 . 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.

Furthermore, the heat exchange air duct 27 also includes a partition 27f disposed in the heat exchange air duct 27 and at the same level as the heat exchange air outlet 21c. The partition 27f is located between the first heat exchange outlet 27a and the second heat exchange outlet 27a. Between the two heat exchange ports 27b.

In this embodiment, when the heat exchange air outlet 21c is used as an air outlet, the arrangement of the partition 27f can avoid impact when the first heat exchange outlet 27a and the second heat exchange outlet 27b directly convection; when the heat exchange air outlet 21c is used as an air inlet, When , 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 exchange port 27b in an orderly manner, thereby accurately controlling the first chamber 23 and the second chamber 25 temperature, and 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.

Further, the heat exchange air duct 27 also includes a first damper 27g arranged between the partition 27f and the top wall 27d, and a second damper 27h arranged between the partition 27f and the bottom wall 27e. The partition 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 27f.

In this embodiment, 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, so that the partition 27f and the top are sealed and fixed. A first cavity is formed between the walls 27d, and a second cavity is formed between the partition 27f and the bottom wall 27e. Among them, the first cavity is respectively Communicated with the first heat exchange port 27a and the heat exchange air port 21c, 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, and can be adjusted through the first heat exchange port. 27a, thereby adjusting the air volume entering or exiting the first room 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 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, the heat exchange air outlet 21c and the second air outlet 21b are all 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 body 10 and is provided through the first inner bladder 21d. The second air outlet 21b extends along the horizontal direction of the box body 10 and is provided through the second inner bladder 21e. In this embodiment, 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. Therefore, the extension directions of the first air outlet 21a and the first heat exchange outlet 27a 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 flow in the first chamber 23 is smoother and the air cooling efficiency is higher. high. 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 refrigerator 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.

Further, the first air outlet 21a and the second air outlet 21b are set as air inlets or air outlets at the same time, and the heat exchange air outlet 21c is set as an air outlet or air inlet matching the first air outlet 21a and the second air outlet 21b. In this embodiment, when the first air outlet 21a and the second air outlet 21b are set as the air inlet at the same time, the heat exchange air outlet 21c is set as the air outlet; when the first air outlet 21a and the second air outlet 21b are set as the air outlet at the same time, the heat exchanger Air outlet 21c Set as air inlet. That is, the first air outlet 21a and the second air outlet 21b are set as air paths in the same direction, and the heat exchange air outlet 21c is set as an opposite air path. In this way, the first chamber 23 and the second chamber 25 can pass through The heat exchange air outlets 21c realize common air inlet or common air outlet, thereby saving the manufacturing cost of the door body 20 .

Specifically, the first air outlet 21a and the second air outlet 21b are set as air outlets at the same time, and the heat exchange air outlet 21c is set as an air inlet. The ice making machine 30 is set in the second chamber 25 and is located in the second room. Right below the heat exchange port 27b.

In this embodiment, as shown in Figure 3, 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 It can enter the first chamber 23 through the first heat exchange port 27a and enter 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 Returning 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. The second heat exchange port 27b is located directly above the ice maker 30, thereby blowing cold air directly into the ice tray, accelerating the ice making process of the ice maker 30, and improving the refrigeration efficiency of the ice maker 30.

Furthermore, the first air outlet 21a and the second air outlet 21b are set as air inlets at the same time, and the heat exchange air outlet 21c is set as an air outlet. The ice making machine 30 is arranged in the first chamber 23 and is located in the first room. Below the tuyere 21a. In other embodiments, the ice maker 30 can also be disposed in the first chamber 23 and located below the first air outlet 21a. At this time, the first air outlet 21a serves as the air inlet of the first room 23 to input cold air into the first room 23. After a room 23, due to the sinking of the cold air, the cold air will flow directly to the ice tray, accelerating the ice making process of the ice making machine 30, and improving the refrigeration efficiency of the ice making machine 30.

Further, 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 pots, 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 is provided in the heat preservation cavity 21h. In this embodiment, the heat exchange air duct 27 is 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 avoidance of condensation on the shell 21g on the front side of the heat exchange air duct 27. Condensation forms. 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 .

As shown in FIG. 6 , another preferred embodiment of the present invention also provides a refrigerator. In addition to having the above structure, the refrigerator also has a communication passage 29 connecting the first chamber 23 and the second chamber 25. Thereby, the cooling of one of the compartments is selectively accelerated in cooperation with the first damper 27g and the second damper 27h.

Specifically, the door body 20 also 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 connecting passage 29 can maintain the internal air pressure balance of the first room 23 and the second room 25. When the room temperature difference between the two rooms is large, one room can provide cooling for the other room. Transport to avoid excessive temperature in one of the two compartments.

Specifically, the communication channel 29 has a first communication port 29a that is open to the first compartment 23 and a second communication port 29b that is open to the second compartment 25. The first heat exchange port 27a and the second communication port 29b are open to the second compartment 25. A communication port 29a is respectively provided on different inner walls of the first compartment 23, and the second heat exchange port 27b and the second communication port 29b are respectively provided on different inner walls of the second compartment 25.

In this embodiment, since the first air outlet 21a, the first heat exchange outlet 27a, and the first communication opening 29a are located on different inner walls of the first chamber 23, the first air outlet 21a, the first heat exchange outlet 27a, and the first communication opening 29a are located on different inner walls of the first chamber 23. The ports 29a are in different planes, so that the air inlet entering the first chamber 23 and the air outlet exiting the first chamber 23 are both in different planes, and then a larger range of gas flow is formed in the first chamber 23, that is, the first Each corner of the compartment 23 will be covered with refrigeration airflow, which increases the heat exchange time of the refrigeration airflow in the first compartment 23, improves the cooling effect of the first compartment 23, and also improves the cooling efficiency of the first compartment 23. refrigeration efficiency. In the same way, the second air outlet 21b, the second heat exchange port 27b, and the second communication port 29b are respectively provided on different inner walls of the second chamber 25, which can also increase the heat exchange time of the cooling air flow in the second chamber 25. function, thereby improving the cooling effect of the second chamber 25 and also improving the cooling efficiency of the second chamber 25.

As shown in Figure 5, when the heat exchange air inlet 21c is used as an air inlet to transport cold air into the heat exchange air duct 27, when the first damper 27g is in a closed state and the second damper 27h is in an open state, the air flow in the heat exchange air duct 27 passes through the third damper. The second heat exchange port 27b enters the second chamber 25 and directly blows the ice tray of the ice maker 30, thereby accelerating the cooling of the second chamber 25 and making ice. A part of the gas in the second chamber 25 passes through the second communication port 29b. It enters the communication channel 29 and enters the first chamber 23 through the second communication port 29a. The gas in the first chamber 23 is finally discharged from the first chamber 23 through the first air outlet 21a. In this way, the second chamber 25 with the ice making machine 30 will be given priority for cooling, thereby improving the ice making efficiency. After the ice making is completed, the first damper 27g can be opened again to achieve the same cooling conditions of the two chambers.

In some embodiments, the second air outlet 21b can be closed, so that all air in the second chamber 25 Part of the gas enters the communication channel 29 through the second communication port 29b, and finally enters the first chamber 23.

Of course, according to the situation, the first damper 27g can be opened and the second damper 27h can be closed, thereby accelerating the cooling of the first room 23 and thus meeting the different needs of users.

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.

Specifically, the communication channel 29 is provided on the side of the first inner bag 21d and the second inner bag 21e facing away from the door body 20 and connecting the box body 10 . 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.

Specifically, the heat exchange air outlet 21c is set as an air inlet, the first air outlet 21a is set as an air outlet, the horizontal height of the second communication opening 29b is smaller than the horizontal height of the heat exchange air outlet 21c, and the heat exchange air outlet 21c The horizontal height of 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 5, the cold energy formed in the evaporation chamber enters the second chamber 25 through the heat exchange air outlet 21c. The airflow completed in the second chamber 25 will enter the communication channel 29 through the second communication port 29b. The airflow in the channel 29 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 21a serves as the air inlet of the first chamber 23. After the cold air is input into the first chamber 23, due to the sinking of the cold air, the cold air will flow directly to the ice tray, accelerating the ice making process of the ice making machine 30, and improving the efficiency of the ice making machine. 30% cooling efficiency.

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 .

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 compartment and a second compartment formed in the door shell. It is characterized in that the door body further It includes a heat exchange air duct arranged in the door shell and connected to the first compartment and the second compartment. The door shell is formed with a first air outlet connected to the first compartment and a second air outlet connected to the second compartment. The heat exchange air outlet communicates with the heat exchange air duct. The heat exchange air duct has a first heat exchange outlet open to the first compartment and a second heat exchange outlet open to the second compartment. The first air outlet , the first heat exchange outlet and the heat exchange air outlet form the cold air circulation of the first compartment, and the second air outlet, the second heat exchange outlet and the heat exchange air outlet form the cold air circulation of the second room.
The refrigerator of claim 1, wherein the first air outlet and the first heat exchange outlet are respectively provided on different inner walls of the first compartment, and the second air outlet and the second heat exchange outlet are respectively provided on different inner walls of the first compartment. Different interior walls of the two rooms.
The refrigerator of claim 2, wherein the door shell includes a first inner bag forming a first compartment and a second inner bag forming a second compartment, and the first inner bag and the second inner bag The bladders are spaced apart along the up and down direction of the box, the heat exchange air duct is arranged between the first inner bladder and the second inner bladder, and the first heat exchange port and the second heat exchange port are along the upper and lower sides of the box body. The directions are set on opposite sides of the heat exchange air duct.
The refrigerator according to claim 3, wherein the heat exchange air duct and the heat exchange air outlet are at the same level and include a side wall opposite to the heat exchange air outlet, and the heat exchange air outlet is along the horizontal surface of the box. The direction extends and is provided through the side wall.
The refrigerator according to claim 4, wherein the heat exchange air duct further includes a top wall opposite to the first inner tank and a bottom wall opposite to the second inner tank, and the top wall and the bottom wall are connected to The side walls are along both ends of the box in the up and down direction. The first heat exchange port is provided on the top wall and extends through the first liner along the up and down direction of the box. The second heat exchange port is provided on the bottom. on the wall, and extends through the second liner along the up and down direction of the box.
The refrigerator of claim 5, wherein the heat exchange air duct further includes a partition disposed in the heat exchange air duct and at the same level as the heat exchange air outlet, and the partition plate is located at the first heat exchange air outlet. between the heat exchange port and the second heat exchange port.
The refrigerator of claim 6, wherein the heat exchange air duct further includes a first air door disposed between the partition and the top wall, and a second air door disposed between the partition and the bottom wall. The partition plate has a free end close to the heat exchange air outlet and a fixed end away from the heat exchange air outlet. The first damper and the second damper are both arranged at the free end of the partition plate.
The refrigerator of claim 5, 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, the heat exchange air outlet and the second air outlet are all located on the door body. It is connected to one side of the box and arranged on the inner shell along the up and down direction of the box. The first air outlet extends along the horizontal direction of the box and penetrates the first inner bag. The second air outlet is arranged along the upper and lower sides of the box. It extends horizontally and runs through the second liner.
The refrigerator of claim 3, further comprising an ice maker disposed in the first chamber and/or the second chamber, and the first air outlet and the second air outlet are simultaneously configured as air inlets. or air outlet, and the heat exchange air outlet is set as an air outlet or air inlet that matches the first air outlet and the second air outlet.
The refrigerator according to claim 9, wherein the first air outlet and the second air outlet are set as air outlets at the same time, and the heat exchange air outlet is set as an air inlet, and the ice maker is arranged in the second room, And located directly below the second heat exchange port.
The refrigerator according to claim 9, wherein the first air outlet and the second air outlet are set as air inlets at the same time, and the heat exchange air outlet is set as an air outlet, and the ice making machine is arranged in the first room, And located below the first air outlet.
The refrigerator of claim 8, 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. A first door on the front side of the chamber, a second door pivotally connected to the outer shell and covering the front side of the second chamber, and the heat exchange air duct is arranged in the heat preservation cavity.
The refrigerator according to claim 3, wherein the door body further includes a communication passage provided in the door shell and connecting the first compartment and the second compartment, and the communication passage has a direction facing the first compartment. The first communication port is open to the second chamber and the second communication port is open to the second chamber. The first heat exchange port and the first communication port are respectively provided on different inner walls of the first chamber. The second heat exchange port The hot port and the second communication port are respectively arranged on different inner walls of the second chamber.