CN117091344A

CN117091344A - Refrigerator with a refrigerator body

Info

Publication number: CN117091344A
Application number: CN202210799102.9A
Authority: CN
Inventors: 王小发; 徐志国; 杨发林; 邵杰
Original assignee: Qingdao Haier Refrigerator Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Refrigerator Co Ltd; Haier Smart Home Co Ltd
Priority date: 2022-05-11
Filing date: 2022-07-06
Publication date: 2023-11-21
Also published as: WO2023217181A1; WO2024008120A1; CN218349004U

Abstract

The invention provides a refrigerator, comprising: the first inner container is provided with a first air duct at the rear side; the second inner container is arranged adjacent to the first inner container left and right, and a second air duct is formed at the rear side of the second inner container; and the connecting air duct piece is transversely arranged between the first inner container and the second inner container so as to be communicated with the first air duct and the second air duct, and one end of the connecting air duct piece, which is communicated with the first air duct, is positioned in the middle of the first air duct. The invention has the advantages of not only effectively shortening the air supply path and accelerating the refrigerating speed, but also solving the problem that the top of the refrigerator body of the refrigerator has convex hulls, reducing the occupied height of the refrigerator body, being beneficial to saving the space and improving the appearance aesthetic property of the refrigerator body.

Description

Refrigerator with a refrigerator body

Technical Field

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

Background

For the conventional split door air-cooled ice box, there are two general arrangements of the air door assembly, one is to arrange the air door assembly at the rear side of the freezing compartment, and in this arrangement, the air door has the risk of freezing or frosting, and a heating wire needs to be arranged at the same time. The other is to arrange the air door assembly at the top of the refrigerating room, and in the arrangement mode, the top of the refrigerating room can form a convex hull, so that the appearance is poor.

In addition, in the case of a split-door air-cooled refrigerator having a refrigerating compartment on the left side, a refrigerating compartment on the upper right side, and a temperature-changing compartment on the lower right side, the temperature-changing compartment generally needs to be provided with an evaporator alone as an independent system, or an air duct needs to be introduced from the refrigerating compartment, and the air supply path is long, resulting in high manufacturing cost, and therefore, improvement is still needed.

Disclosure of Invention

An object of the first aspect of the present invention is to optimize the air duct structure of a refrigerator, shorten the air supply path, and reduce the occupied height of the refrigerator body.

A further object of the first aspect of the present invention is to eliminate the arrangement of the heating wire and reduce the manufacturing cost of the refrigerator.

In particular, according to a first aspect of the present invention, there is provided a refrigerator comprising:

the first inner container is provided with a first air duct at the rear side;

the second inner container is arranged adjacent to the first inner container left and right, and a second air duct is formed at the rear side of the second inner container; and

the connecting air duct piece is transversely arranged between the first inner container and the second inner container so as to be communicated with the first air duct and the second air duct, and one end of the connecting air duct piece, which is communicated with the first air duct, is positioned in the middle of the first air duct.

Optionally, the first air duct includes a first upper air duct and a first lower air duct, a mounting portion for mounting the air supply device is formed at a lower portion of the first upper air duct, the connecting air duct member extends from a side of the mounting portion adjacent to the second liner to the second air duct, an evaporation chamber for arranging the evaporator is formed at a rear side of the first lower air duct, and a rear side of the mounting portion is communicated with the evaporation chamber.

Optionally, the ratio of the height of the first upper air duct to the height of the first lower air duct is 1:1-2:1.

Optionally, the connecting duct member is disposed obliquely rearward and upward in the lateral direction.

Optionally, the second air duct comprises a connecting section, the connecting section is arranged at the rear side of the second inner container along the transverse direction, and one end of the connecting section, facing the first inner container, is provided with an interface for connecting the air duct piece;

the inside of connecting section is provided with the air door assembly of opening and close connecting section.

Optionally, the second air duct further includes a first air supply section extending upward from a top of the connection section.

Optionally, the damper assembly includes a first damper assembly disposed at a location of the connection section adjacent the interface and inclined toward the first supply section.

Optionally, the damper assembly includes a second damper assembly disposed adjacent the top of the connection section for controlling the on-off of the air flow of the first supply section.

Optionally, the second air duct further includes a second air supply section extending downward from a bottom of the connection section.

Optionally, the damper assembly includes a third damper assembly disposed adjacent the bottom of the connection section for controlling the on-off of the airflow of the second supply section.

Optionally, the ratio of the height of the first air supply section to the height of the second air supply section is 1:1-2:1.

Optionally, the interior of the second liner is divided into a first space and a second space which are independent from each other, the first air supply section is used for supplying cold energy to the first space, and the second air supply section is used for supplying cold energy to the second space.

Optionally, a middle partition plate is arranged in the second liner, and divides the inner space of the second liner into a first space and a second space.

Optionally, the second liner includes an upper liner body and a lower liner body, the interior of the upper liner body defines a first space, and the interior of the lower liner body defines a second space.

Optionally, a return air duct is arranged between the lower ends of the first inner container and the second inner container, a return air inlet of the return air duct is communicated with the interior of the second inner container, and a return air outlet of the return air duct is communicated with the lower end of the first air duct.

Optionally, the refrigerator is a side-by-side refrigerator, the front side of the first inner container is provided with a first refrigerator door, and the front side of the second inner container is provided with a second refrigerator door.

Optionally, the refrigerator is a side T-type refrigerator, a first door is provided at a front side of the first liner, an upper door is provided at a front side of the first space of the second liner, and a lower door is provided at a front side of the second space of the second liner.

According to the refrigerator, the second air channel is communicated with the first air channel through the transversely arranged connecting air channel piece, and one end of the connecting air channel piece, which is communicated with the first air channel, is arranged in the middle of the first air channel, so that an air supply path can be effectively shortened, the refrigerating speed can be increased, the problem that a convex hull exists at the top of the refrigerator body of the refrigerator can be solved, the occupied height of the refrigerator body is reduced, the space is saved, and the appearance aesthetic property of the refrigerator body is improved.

Furthermore, the refrigerator of the invention is characterized in that the connecting section is transversely arranged at the rear side of the second inner container, one end of the connecting section, which faces the first inner container, is communicated with the connecting air duct piece, and the air door assembly is positioned at the rear side of the second inner container.

The above, as well as additional objectives, advantages, and features of the present invention will become apparent to those skilled in the art from the following detailed description of a specific embodiment of the present invention when read in conjunction with the accompanying drawings.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to designate like parts throughout the figures. In the drawings:

fig. 1 is a schematic view of the inside structure of the front side of a refrigerator according to an embodiment of the present invention;

FIG. 2 is a schematic front side view of a duct structure according to one embodiment of the invention;

FIG. 3 is a rear schematic view of a duct structure according to one embodiment of the invention;

fig. 4 is a front side plan view illustrating a refrigerator according to an embodiment of the present invention;

FIG. 5 is a schematic structural view of a damper assembly according to one embodiment of the present invention;

FIG. 6 is a cross-sectional view of a return air duct according to one embodiment of the present invention;

fig. 7 is a schematic view of the inner structure of the front side of a refrigerator according to another embodiment of the present invention;

FIG. 8 is a schematic front side view of a duct structure according to another embodiment of the present invention;

FIG. 9 is a rear schematic view of a duct structure according to another embodiment of the present invention;

FIG. 10 is a schematic structural view of a damper assembly of a refrigerator according to another embodiment of the present invention;

FIG. 11 is a diagram of the height scaling of a first air duct, a second air duct according to one embodiment of the invention;

fig. 12 is a front side plan view illustrating a refrigerator according to another embodiment of the present invention.

Reference numerals: 10. a refrigerator; 101. a first door; 102. a second door; 103. an upper box door; 104. a lower door; 100. a first liner; 110. a first air duct; 111. a first upper duct; 112. a first lower air duct; 113. a mounting part; 200. a second liner; 201. a middle partition plate; 210. a second air duct; 211. a connection section; 212. a first air supply section; 213. a second air supply section; 300. the air duct piece is connected; 410. an air return duct; 411. a return air inlet; 412. a return air outlet; 500. a damper assembly; 510. a first damper assembly; 511. a first door frame; 512. a first damper; 520. a second damper assembly; 521. a second door frame; 522. a second damper; 530. a third damper assembly; 531. a third door frame; 532. a third damper; 540. a mounting box; 541. a front box cover; 542. a rear box cover; 543. an interface.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

In the description of the present embodiment, it should be understood that the terms "longitudinal", "transverse", "length", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.

The present invention provides a refrigerator 10, fig. 1 is a schematic view of an internal structure of the refrigerator 10 according to an embodiment of the present invention, fig. 2 is a schematic view of a front side of a duct structure according to an embodiment of the present invention, and fig. 3 is a schematic view of a rear side of the duct structure according to an embodiment of the present invention.

Referring to fig. 1 to 3, the refrigerator 10 may include a first liner 100, a second liner 200, and a connection duct member 300, wherein a first duct 110 is formed at a rear side of the first liner 100, the second liner 200 is disposed adjacent to the first liner 100 from side to side, a second duct 210 is formed at a rear side of the second liner 200, the connection duct member 300 is laterally disposed between the first liner 100 and the second liner 200 for communicating the first duct 110 with the second duct 210, and one end of the connection duct member 300 communicating the first duct 110 is located at a middle portion of the first duct 110.

According to the refrigerator 10 disclosed by the embodiment of the invention, the second air duct 210 is communicated with the first air duct 110 through the transversely arranged connecting air duct piece 300, and one end, communicated with the first air duct 110, of the connecting air duct piece 300 is arranged in the middle of the first air duct 110, so that the air supply path can be effectively shortened, the refrigerating speed can be increased, the problem that the convex hull exists at the top of the refrigerator 10 can be solved, the occupied height of the refrigerator is reduced, the space is saved, and the appearance aesthetic property of the refrigerator is improved.

In one embodiment, the first liner 100 may be a freezing liner, and the first air duct 110 at the rear side of the first liner 100 is a freezing air duct. The second liner 200 may be a refrigeration liner, the second air duct 210 at the rear side of the second liner 200 is a refrigeration air duct, an air supply duct is disposed between the refrigeration air duct and the refrigeration air duct, and the connecting air duct member 300 may be only a portion of the air supply duct between the refrigeration liner and the refrigeration liner. The refrigerating air duct can convey the cold energy in the refrigerating air duct to the refrigerating air duct, the front side of the refrigerating air duct is provided with a plurality of refrigerating air outlets, and the cold energy can be blown from the refrigerating air outlets to the inside of the refrigerating liner, so that the internal temperature of the refrigerating liner is regulated.

In another embodiment, the first liner 100 may be a freezing liner, and the first air duct 110 at the rear side of the first liner 100 is a freezing air duct. The second liner 200 may be a temperature-changing liner, the second air duct 210 at the rear side of the second liner 200 is a temperature-changing air duct, an air supply duct is arranged between the freezing air duct and the temperature-changing air duct, and the connecting air duct piece 300 may be only the portion of the air supply duct between the freezing liner and the temperature-changing liner. The cooling capacity in the freezing air duct can be conveyed into the variable temperature air duct through the air supply air duct, a plurality of variable temperature air outlets are formed in the front side of the variable temperature air duct, and the cooling capacity can be blown into the variable temperature inner container from the variable temperature air outlets, so that the internal temperature of the variable temperature inner container is regulated.

The first air duct 110 may include a first upper air duct 111 and a first lower air duct 112, wherein a lower portion of the first upper air duct 111 is formed with a mounting portion 113 to which the air supply device is mounted, the connection air duct member 300 extends from a side of the mounting portion 113 adjacent to the second liner 200 toward the second air duct 210, a rear side of the first lower air duct 112 is formed with an evaporation chamber in which the evaporator is disposed, and a rear side of the mounting portion 113 communicates with the evaporation chamber. In this embodiment, the first air duct 110 may be a freezing air duct of the refrigerator 10, and correspondingly, the first upper air duct 111 and the first lower air duct 112 are a freezing upper air duct and a freezing lower air duct, respectively.

The air supply device may be a shunt air supply device, and the cold energy absorbed by the shunt air supply device from the evaporation chamber may be separately conveyed to the first upper air duct 111, or may be separately conveyed to the connecting air duct member 300, or may be simultaneously conveyed to the first upper air duct 111 and the connecting air duct member 300, and the structure and principle of the shunt air supply device are known to those skilled in the art, so that the description thereof is omitted herein.

The ratio of the height of the first upper air duct 111 to the height of the first lower air duct 112 may be 1:1 to 2:1. Such as 1:1, 1.5:1, 2:1, etc. When the first liner 100 is a freezing liner, the first upper air duct 111 is a freezing upper air duct, and the first lower air duct 112 is a refrigerating lower air duct, wherein a plurality of freezing air outlets are provided on the front side of the freezing upper air duct, and cold energy can be simultaneously supplied to the inner space of the freezing liner through the plurality of freezing air outlets.

The connecting duct 300 of the present embodiment is specifically disposed obliquely rearward and upward in the lateral direction. Generally, the first liner 100 is used as a freezing liner of the refrigerator 10, the second liner 200 is used as a refrigerating liner of the refrigerator 10, and because the freezing liner has a higher heat insulation requirement, the thickness of the foaming layer of the freezing liner is relatively larger, and the thickness of the foaming layer of the refrigerating liner is smaller, based on this, the front-back length of the second liner 200 in the embodiment can be longer than the front-back length of the first liner 100, so as to increase the internal space of the second liner 200, the second liner 200 is flush with the front side of the first liner 100, and the connecting air duct member 300 is arranged in a manner of being inclined backward and upward along the transverse direction, so that the cold energy can be transferred from the first air duct 110 to the rear side area of the second liner 200.

The second air duct 210 may include a connection section 211, the connection section 211 being disposed at a rear side of the second liner 200 in a lateral direction, and an end of the connection section 211 facing the first liner 100 being provided with an interface 543 to which the above-described connection air duct member 300 is connected. Because the connecting air duct member 300 is specifically disposed obliquely backward and upward along the transverse direction, the connecting section 211 can be connected with the connecting air duct member 300 when being fixed to the rear side of the second liner 200, and the front-rear width of the connecting section 211 does not need to be designed to be larger, which is beneficial to saving the internal space of the second liner 200.

In one embodiment, the first liner 100 is a freezing liner, the first air duct 110 is a freezing air duct, the second liner 200 is a refrigerating liner, the second air duct 210 is a refrigerating air duct, an air supply duct is disposed between the freezing air duct and the refrigerating air duct, the connecting air duct member 300 is a portion of the air supply duct between the freezing liner and the refrigerating liner, and the connecting section 211 is a portion of the air supply duct at the rear side of the second liner 200, that is, the air supply duct includes the connecting air duct member 300 and the connecting section 211.

Inside the connection section 211 is provided a damper assembly 500 opening and closing the connection section 211. It will be appreciated that the damper assembly 500 of the present embodiment is located at a rear side of the second liner 200, and the damper assembly 500 is located at a greater distance from the air supply device than the conventional refrigerator 10. Through the actual use of the test-fabricated samples, the damper assembly 500 of the present embodiment has almost no risk of icing or frosting during the operation of the refrigerator 10, so that the heating wire disposed therein is eliminated, which is beneficial to reducing the manufacturing cost of the refrigerator 10.

The second duct 210 may further include a first air supply section 212, the first air supply section 212 extending upward from the top of the connection section 211, thereby realizing a flat duct of the upper air path. In the refrigerating process, the cold energy absorbed by the air supply device from the evaporator can be conveyed to the upper end of the first air supply section 212 after passing through the connecting air duct 300 and the connecting section 211, and blown to the second liner 200 from a plurality of air outlets on the front side of the first air supply section 212, and refrigerating the whole inner space of the second liner 200 is completed by sinking the cold energy.

Fig. 4 is a front side plan view of a refrigerator 10 according to an embodiment of the present invention, and referring to fig. 4, the refrigerator 10 may be configured as a single-system side-by-side refrigerator 10, a first door 101 is provided at a front side of a first liner 100, a second door 102 is provided at a front side of a second liner 200, and the first door 101 and the second door 102 are used to open and close front side openings of the first liner 100 and the second liner 200, respectively.

Fig. 5 is a schematic diagram of a damper assembly 500 according to one embodiment of the invention, referring to fig. 5, the damper assembly 500 may include a first damper component 510 disposed at a location of the connecting section 211 adjacent the interface 543 and inclined toward the first supply section 212. The first damper assembly 510 may include a first door frame 511 and a first damper 512, the first damper 512 being mounted to the first door frame 511 and configured to be controllably opened to the first supply section 212 side. By such design, the condensed water can be prevented from freezing the rotating shaft of the first air door 512, so as to avoid affecting the normal opening and closing of the first air door 512.

In another embodiment, the damper assembly 500 may include a second damper assembly 520 disposed adjacent the top of the connection section 211 for controlling the on-off of the air flow of the first supply section 212. The second damper assembly 520 may include a second door frame 521 and a second damper 522, the second damper 522 being mounted to the second door frame 521, both ends of the second damper 522 in a lateral direction being provided with a rotation shaft, the second damper 522 being pivotally connected to the second door frame 521 by the rotation shaft and configured to be controllably opened upward.

Referring to fig. 2 and 6, a return air duct 410 is provided between the lower ends of the first and second liners 100 and 200, a return air inlet 411 of the return air duct 410 communicates with the inside of the second liner 200, and a return air outlet 412 of the return air duct 410 communicates with the lower end of the first air duct 110. The return air duct 410 may enable the air flow in the second liner 200 to enter the evaporation chamber from the lower end of the first lower air duct 112, and be re-cooled by the evaporator, so as to form circulation of the air flow.

The cross-sectional area of the return air duct 410 may gradually decrease from one side of the return air inlet 411 to one side of the return air outlet 412, so that the air flow at the bottom of the second liner 200 can be sucked into the return air duct 410 relatively quickly during the air supply process of the air supply device, thereby accelerating the circulation speed of the air flow and improving the refrigeration efficiency in the second liner 200.

Fig. 7 is a schematic view of the front internal structure of a refrigerator 10 according to another embodiment of the present invention, fig. 8 is a schematic view of the front side of a duct structure according to another embodiment of the present invention, and fig. 9 is a schematic view of the rear side of the duct structure according to another embodiment of the present invention.

Referring to fig. 7 to 9, the second duct 210 may further include a second air supply section 213, the second air supply section 213 extending downward from the bottom of the connection section 211. In the refrigerating process, the cold energy absorbed by the air supply device from the evaporator can be respectively conveyed to the top of the first air supply section 212 and the bottom of the second air supply section 213 after passing through the connecting air duct piece 300 and the connecting section 211, and uniformly blown to the second liner 200 from a plurality of air outlets on the front sides of the first air supply section 212 and the second air supply section 213, thereby being beneficial to accelerating the refrigerating speed and improving the refrigerating uniformity.

Fig. 10 is a schematic structural view of a damper assembly 500 of the refrigerator 10 according to another embodiment of the present invention, referring to fig. 10, the damper assembly 500 may include a third damper assembly 530, the third damper assembly 530 being disposed adjacent to the bottom of the connection section 211 for controlling the air flow of the second air supply section 213. The third damper assembly 530 includes a third door frame 531 and a third damper 532, the third damper 532 being mounted to the third door frame 531, the third damper 532 being provided with a rotation shaft at both lateral ends thereof, the third damper 532 being pivotally connected to the third door frame 531 by the rotation shaft and configured to be controllably opened downward.

The ratio of the height of the first air supply section 212 to the height of the second air supply section 213 is 1:1 to 2:1. Such as 1:1, 1.5:1, 2:1, etc. In the embodiment, the ratio of the height of the first upper duct 111 to the height of the second lower duct is 1.2:1, and the ratio of the height of the first air supply section 212 to the height of the second air supply section 213 is 1:1, so that the height of the connecting section 211 is slightly higher than the height of the mounting portion 113 of the air supply device.

Fig. 11 is a diagram illustrating a ratio of the heights of the first duct 110 and the second duct 210 according to an embodiment of the present invention, where a represents the height of the first upper duct 111, b represents the height of the first lower duct 112, c represents the height of the first air supply section 211, and d represents the height of the second air supply section 213.

The second liner 200 may be divided into a first space and a second space which are independent from each other, wherein the first air supply section 212 is only used for supplying cold to the first space, the second air supply section 213 is only used for supplying cold to the second space, the first space may be a refrigerating space of the refrigerator 10, and the second space may be any one of the refrigerating space, the freezing space or the temperature changing space of the refrigerator 10, and may be specifically configured according to actual storage requirements.

The second liner 200 may be a refrigeration liner, correspondingly, the first air supply section 212 is a refrigeration upper air duct, the second air supply section 213 is a refrigeration lower air duct, the refrigeration upper air duct and the refrigeration lower air duct are arranged up and down along the height direction of the refrigeration liner, the lower end of the refrigeration upper air duct is communicated with the top of the connection section 211, and the upper end of the refrigeration lower air duct is communicated with the bottom of the connection section 211.

In one embodiment, the second liner 200 is provided with a middle partition 201 inside, the middle partition 201 is horizontally disposed along the front-rear direction of the second liner 200, the front side of the middle partition 201 is flush with the front side of the second liner 200, the rear side of the middle partition 201 is fixed to the connection section 211, and the left and right sides of the middle partition 201 are hermetically connected with the side walls of the second liner 200, thereby dividing the inner space of the second liner 200 into the first space and the second space.

In another embodiment, the second liner 200 includes an upper liner body and a lower liner body, the interior of the upper liner body defining a first space therein, and the interior of the lower liner body defining a second space therein. That is, the second liner 200 is a split structure, and the upper liner body is placed above the lower liner body, and the storage openings of the upper liner body and the lower liner body are all arranged towards each other.

Fig. 12 is a front side plan view of a refrigerator 100 according to another embodiment of the present invention, and referring to fig. 12, the refrigerator 10 may be configured as a single-system side T-type refrigerator 10, a first cabinet door 101 is provided at a front side of a first space of a second cabinet 200, an upper cabinet door 103 is provided at a front side of a first space of the second cabinet 200, and a lower cabinet door 104 is provided at a front side of a second space of the second cabinet 200.

It should be noted that, when the refrigerator 10 is configured as a single-system side T-type refrigerator 10, a return air duct 410 should be further disposed between the bottom of the first space of the second liner 200 and the bottom of the first lower air duct 112 to ensure effective circulation of the air flow.

Further, the damper assembly 500 may further include a damper mounting box 540, wherein the damper mounting box 540 is embedded within the connecting section 211, which may be a foam material. The damper mounting box 540 may include a front box cover 541 and a rear box cover 542, the front box cover 541 being snapped onto the front side of the rear box cover 542, the second damper assembly 520 or the third damper assembly 530 being clamped between the front box cover 541 and the rear box cover 542.

According to any optional embodiment or a combination of multiple optional embodiments, the following beneficial effects can be achieved according to the embodiment of the invention:

Further, in the refrigerator 10 according to the embodiment of the invention, the damper assembly 500 is disposed in the connecting section 211 at the rear side of the second liner 200, compared with the common refrigerator 10, the damper assembly 500 is far away from the air supply device, and there is almost no risk of icing or frosting in the damper assembly 500, so that the heating wire disposed therein can be omitted, and the manufacturing cost of the refrigerator 10 can be reduced reasonably.

By now it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been shown and described herein in detail, many other variations or modifications of the invention consistent with the principles of the invention may be directly ascertained or inferred from the present disclosure without departing from the spirit and scope of the invention. Accordingly, the scope of the present invention should be understood and deemed to cover all such other variations or modifications.

Claims

1. A refrigerator, comprising:

the first inner container is provided with a first air duct at the rear side;

2. The refrigerator of claim 1, wherein,

the first air duct comprises a first upper air duct and a first lower air duct, a mounting part for mounting the air supply device is formed at the lower part of the first upper air duct, the connecting air duct piece extends from one side, adjacent to the second liner, of the mounting part to the second air duct, an evaporation chamber for arranging an evaporator is formed at the rear side of the first lower air duct, and the rear side of the mounting part is communicated with the evaporation chamber.

3. The refrigerator of claim 2, wherein,

the ratio of the height of the first upper air duct to the height of the first lower air duct is 1:1-2:1.

4. The refrigerator of claim 1, wherein,

the connecting air duct piece is obliquely arranged backwards and upwards along the transverse direction.

5. The refrigerator of claim 1, wherein,

the second air duct comprises a connecting section, the connecting section is arranged at the rear side of the second inner container along the transverse direction, and one end of the connecting section, which faces the first inner container, is provided with an interface for connecting the air duct piece;

and a throttle assembly for opening and closing the connecting section is arranged in the connecting section.

6. The refrigerator of claim 5, wherein,

the second air duct also includes a first air supply section extending upwardly from the top of the connection section.

7. The refrigerator of claim 6, wherein,

the damper assembly includes a first damper assembly disposed at a location of the connection section adjacent the interface and inclined toward the first supply section.

8. The refrigerator of claim 6, wherein,

the air door assembly comprises a second air door component, wherein the second air door component is arranged adjacent to the top of the connecting section and is used for controlling the air flow on-off of the first air supply section.

9. The refrigerator of claim 6, wherein,

the second air duct further includes a second air supply section extending downward from the bottom of the connection section.

10. The refrigerator of claim 9, wherein,

the air door assembly comprises a third air door component, wherein the third air door component is arranged adjacent to the bottom of the connecting section and used for controlling the on-off of air flow of the second air supply section.

11. The refrigerator of claim 9, wherein,

the ratio of the height of the first air supply section to the height of the second air supply section is 1:1-2:1.

12. The refrigerator of claim 9, wherein,

the inside of the second liner is divided into a first space and a second space which are independent from each other, the first air supply section is used for supplying cold energy to the first space, and the second air supply section is used for supplying cold energy to the second space.

13. The refrigerator of claim 12, wherein,

the inside of second inner bag is provided with the middle baffle, the middle baffle will the inner space of second inner bag is divided into first space and the second space.

14. The refrigerator of claim 12, wherein,

the second liner comprises an upper liner body and a lower liner body, the interior of the upper liner body defines the first space, and the interior of the lower liner body defines the second space.

15. The refrigerator of claim 6, wherein,

an air return air duct is arranged between the first inner container and the lower end of the second inner container, an air return inlet of the air return air duct is communicated with the interior of the second inner container, and an air return outlet of the air return air duct is communicated with the lower end of the first air duct.

16. The refrigerator of claim 6, wherein,

the refrigerator is a side-by-side refrigerator, a first refrigerator door is arranged on the front side of the first inner container, and a second refrigerator door is arranged on the front side of the second inner container.

17. The refrigerator of claim 12, wherein,

the refrigerator is a side T-shaped refrigerator, a first refrigerator door is arranged on the front side of the first inner container, an upper refrigerator door is arranged on the front side of a first space of the second inner container, and a lower refrigerator door is arranged on the front side of a second space of the second inner container.