CN107270618B

CN107270618B - refrigerator with a door

Info

Publication number: CN107270618B
Application number: CN201710516041.XA
Authority: CN
Inventors: 程学丽; 费斌; 尚亚洲; 刘金林
Original assignee: Qingdao Haier Co Ltd
Current assignee: Qingdao Haier Co Ltd
Priority date: 2017-06-29
Filing date: 2017-06-29
Publication date: 2019-12-10
Anticipated expiration: 2037-06-29
Also published as: CN107270618A; WO2019001501A1

Abstract

the invention provides a refrigerator. The refrigerator includes: the refrigerator comprises a box body, a storage box and a cooling device, wherein the box body is internally provided with a cooling space and at least one storage space; the air outlet device is provided with a peripheral wall part extending along the longitudinal direction of the box body and a first axial end part arranged at one end of the peripheral wall part; the peripheral wall part is provided with a plurality of first air outlets, and the first axial end part is provided with a plurality of second air outlets; the air duct assembly is arranged on the box body; the air duct assembly is internally provided with a containing cavity for containing the air outlet device, and a first air duct layer and a second air duct layer which are sequentially arranged along the longitudinal direction of the box body; the first air duct layer comprises a plurality of first air ducts, and the air flow flowing out of the cooling space flows to the at least one storage space through the plurality of first air outlets of the air outlet device and the plurality of first air ducts; the second air duct layer comprises a plurality of second air ducts, and the air flow flowing out of the cooling space flows to the at least one storage space through the plurality of second air outlets of the air outlet device and the plurality of second air ducts. This refrigerator structural design is reasonable, can effectively supply air.

Description

refrigerator with a door

Technical Field

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

background

In recent years, with the improvement of living standard and the enhancement of environmental consciousness, the demand for refrigerators has shifted from the satisfaction of low-temperature refrigeration to the preservation of food. Therefore, the air-cooled refrigerator is gradually favored by people. For air-cooled refrigerators, the freshness-retaining properties of food are to a large extent dependent on the circulation of the air flow in the storage compartment of the air-cooled refrigerator and the temperature differences between the various parts of the refrigerator. The air flow in the refrigerator is reasonable in circulation, and the smaller the temperature difference is, the better the preservation performance of the refrigerator is. The key component determining whether the air circulation of the refrigerator is reasonable is the air duct, which determines how to convey air to a reasonable position in the storage compartment. In the air-cooled refrigerator air path design on the market at present, most air-cooled refrigerators are provided with evaporators arranged in a single accommodating chamber, and the accommodating chamber of the evaporators is communicated with each storage space by utilizing a complex air duct system, so that the existing air duct system is complex in design and large in structure, and air cannot be conveyed to an expected position due to the limitation of the structure of the existing air duct system.

disclosure of Invention

The invention aims to overcome at least one defect of the existing air-cooled refrigerator, and provides a novel refrigerator which is provided with a special air duct system, can ensure that the structural design of the refrigerator is reasonable, and can effectively supply air.

in particular, the present invention provides a refrigerator, comprising:

The refrigerator comprises a box body, a storage box and a cooling device, wherein the box body is internally provided with a cooling space and at least one storage space;

The air outlet device is provided with a peripheral wall extending along the longitudinal direction of the box body and a first axial end part arranged at one end of the peripheral wall; a plurality of first air outlets are formed in the peripheral wall part, and a plurality of second air outlets are formed in the first axial end part; and

the air duct assembly is arranged on the box body; the air duct assembly is internally provided with a containing cavity for containing the air outlet device, and a first air duct layer and a second air duct layer which are sequentially arranged along the longitudinal direction of the box body;

the first air duct layer comprises a plurality of first air ducts, and the air flow flowing out of the cooling space flows to the at least one storage space through the plurality of first air outlets of the air outlet device and the plurality of first air ducts;

The second air duct layer comprises a plurality of second air ducts, and the air flow flowing out of the cooling space flows to the at least one storage space through the plurality of second air outlets of the air outlet device and the plurality of second air ducts.

Optionally, each of the first air outlets of part or all of the first air outlets is communicated with two first air ducts, so that the airflow flowing out of the first air outlet flows to two lateral sides of the rear portion of the storage space.

Optionally, each of the second air outlets of part or all of the second air outlets is communicated with two second air ducts, so that the airflow flowing out of the second air outlet flows to two lateral sides of the rear portion of the storage space.

Optionally, the air duct assembly includes a rear casing portion, a first front cover mounted on a front side of the rear casing portion, and a second front cover mounted on a front side of the first front cover;

The first air duct layer and the accommodating cavity are positioned on the rear side of the first front cover;

the second air duct layer is located on the front side of the first front cover.

Optionally, the rear housing portion comprises:

a rear housing having a rear wall, a containment chamber wall extending forwardly from a middle or upper portion of the rear wall, a first air duct wall extending forwardly from the rear wall, and a third air duct wall extending rearwardly from the rear wall;

A duct bridge mounted to an upper portion of the rear housing and having a fourth duct wall and a fifth duct wall extending forwardly from the fourth duct wall; and is

The rear wall, the containment chamber wall and the air duct bridge and the first front cover together define the containment chamber;

The rear side of the fourth air duct wall and the third air duct wall jointly define a first air duct communicated with the accommodating cavity, and the first air duct extends from the accommodating cavity to the rear upper part of the accommodating cavity;

the rear wall, the front side of the fourth duct wall, the first and fifth duct walls, and the first front cover collectively define each of the remaining first ducts.

Optionally, the first front cover has a cover plate and a second duct wall extending forwardly from the cover plate;

The cover plate, the second air duct wall and the second front cover together define a plurality of second air ducts; and is

The cover plate is provided with a plurality of communicating holes, and each second air outlet is aligned with one communicating hole so that each second air outlet is communicated with at least one corresponding second air duct through one communicating hole.

optionally, a plurality of first air supply outlets with forward openings are arranged on the cover plate, each first air supply outlet is communicated with the tail end of one corresponding first air duct, and the number of the first air supply outlets is smaller than that of the first air ducts;

And a plurality of second air supply outlets with forward openings are arranged on the second front cover, and each second air supply outlet is communicated with the tail end of one corresponding second air channel.

optionally, the plurality of first air outlets include an air outlet i, an air outlet ii and an air outlet iii, the air outlet i is disposed on the upper side of the peripheral wall portion, and the air outlet ii and the air outlet iii are disposed on two sides of the air outlet i;

The plurality of first air channels comprise a first air channel, a second air channel, a third air channel, a fourth air channel and a fifth air channel;

the first air channel extends from the accommodating cavity to the rear upper part of the accommodating cavity, and the first air outlet is communicated with the first air channel;

The air duct II extends upwards from the air outlet II to one lateral side of the upper part of the rear shell, and the air duct III extends upwards from the air outlet II and then extends from the air duct bridge to the other lateral side of the upper part of the rear shell across the air duct;

The air duct four and the air duct five both extend downwards from the air outlet three, and the tail end of the air duct four and the tail end of the air duct five are positioned at the two transverse sides of the lower part of the rear shell;

the plurality of second air outlets comprise an air outlet four, an air outlet five and an air outlet six, the air outlet four is arranged at the lower part of the first axial end part, and the air outlet five and the air outlet six are arranged at two sides of the upper part of the first axial end part;

the plurality of second air channels comprise an air channel six, an air channel seven, an air channel eight and an air channel nine;

the air duct six and the air duct seven extend downwards from the communication hole aligned with the air outlet four, and the tail end of the air duct six and the tail end of the air duct seven are positioned at two transverse sides of the lower part of the cover plate;

the air duct eight extends to one lateral side of the upper part of the cover plate from a communication hole aligned with the air outlet five in an upward inclined mode; the air duct nine extends obliquely upward from the communication hole aligned with the air outlet six to the other lateral side of the upper portion of the cover plate.

Optionally, the at least one storage space comprises an upper tray space, an upper drawer space, a lower tray space and a lower drawer space which are sequentially arranged from top to bottom, and a refrigerating space arranged above the upper tray space; and is

The first air duct is communicated with the refrigerating space;

the air duct II and the air duct III are communicated with the upper drawer space;

the air duct four and the air duct five are communicated with the lower drawer space;

The air duct six and the air duct seven are communicated with the lower tray space;

The air duct eight and the air duct nine are communicated with the upper layer tray space;

the lower end of the rear shell is provided with a return air duct shell which extends forwards, and the return air duct shell is provided with one or more return air ducts.

optionally, the air outlet device further includes:

the second axial end part is arranged at the other end of the peripheral wall part, and an air inlet is formed in the second axial end part;

a fan configured to cause airflow from the air inlet into the peripheral wall portion;

the adjusting part is rotatably arranged in the peripheral wall part relative to the peripheral wall part so as to completely shield, partially shield or completely expose each first air outlet at different movement positions, so that the air outlet area of each first air outlet is adjusted;

The cooling space is positioned at the rear side of the air duct assembly, and the air inlet faces the cooling space;

The fan is a centrifugal fan.

The air duct assembly in the refrigerator provided by the invention is provided with the two air ducts and the air outlet device, so that air flow can enter the storage space of the refrigerator through the two air ducts, particularly conveniently enters a plurality of positions of the storage space, and is particularly convenient for designing air supply positions, and air can be supplied at reasonable positions. And the runner of each air channel is shorter, so that the air resistance can be obviously reduced, the air supply smoothness is improved, the optimal storage environment can be provided for food, the nutrition loss of the food is reduced, the power consumption of the refrigerator can be reduced, the energy is saved, and the noise is reduced.

Furthermore, the refrigerator of the invention can adjust the air flow of part or all of the air supply outlets because of the adjusting part of the air outlet device, thereby adjusting the cold quantity sent into the storage space, simplifying the structure, for example, omitting the structure of a fan, a plurality of air doors and the like of the existing air cooling refrigerator. And the air supply volume of the storage space can be uniformly controlled, the air supply volume can be reasonably distributed, and the refrigeration effect and the fresh-keeping effect of the refrigerator are improved. The design of the fan in the air outlet device can further make the refrigerator compact in structure and effectively enlarge the volume of the storage space.

The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.

drawings

Some specific embodiments of the invention will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:

fig. 1 is a schematic structural view of a refrigerator according to one embodiment of the present invention;

FIG. 2 is a schematic structural diagram of an air outlet device installed in an air duct assembly in the refrigerator shown in FIG. 1;

FIG. 3 is a schematic exploded view of the structure shown in FIG. 2;

FIG. 4 is a schematic exploded view of the bottom shell portion of the air duct assembly of FIG. 3;

Fig. 5 is a schematic structural view of the air outlet device shown in fig. 3;

fig. 6 is a schematic exploded view of the wind outlet device shown in fig. 5.

Detailed Description

Fig. 1 is a schematic structural view of a refrigerator according to one embodiment of the present invention. As shown in fig. 1, an embodiment of the present invention provides a refrigerator. The refrigerator may have a cabinet 100, an air outlet device 300, an air duct assembly 200, and a refrigerating system. The cabinet 100 may have a cooling space and at least one storage space therein. The refrigeration system may optionally be a compression refrigeration system having an evaporator disposed within the cooled space. As is well known to those skilled in the art, the refrigeration system may be other types of refrigeration systems, such as a semiconductor refrigeration system, and a cold-side cold spreader of the semiconductor refrigeration system may be disposed in the cooling space.

the air duct assembly 200 may be mounted to the cabinet 100. The air duct assembly 200 has a cavity for accommodating the air outlet device 300 therein, and a first air duct layer and a second air duct layer sequentially arranged along a longitudinal direction of the refrigerator, as shown in fig. 2, 3 and 4. The first air duct layer may include a plurality of first air ducts. The second air duct layer may include a plurality of second air ducts. The air outlet device 300 is installed in the accommodating cavity of the air duct assembly 200, as shown in fig. 3. The air outlet device 300 may have a peripheral wall 310 and a first axial end 320 disposed at one end of the peripheral wall 310, as shown in fig. 5 and 6. The peripheral wall portion 310 may extend in the longitudinal direction of the case 100, that is, the axial direction of the peripheral wall portion 310 extends in the longitudinal direction of the case 100. The peripheral wall 310 is provided with a plurality of first outlets 311, and the first axial end 320 is provided with a plurality of second outlets 321. The airflow flowing out of the cooling space flows to at least one storage space through the plurality of first air outlets 311 and the plurality of first air ducts of the air outlet device 300; and the airflow flowing out of the cooling space flows to the at least one storage space through the plurality of second air outlets 321 and the plurality of second air ducts of the air outlet device 300.

For example, in some embodiments of the present invention, the at least one storage space may include a refrigerating space 110 at an upper portion and a freezing space 130 at a lower portion, and the freezing space 130 may be divided into four spaces arranged in sequence. In some alternative embodiments, the four spaces arranged in sequence from top to bottom are an upper tray space, an upper drawer space, a lower tray space and a lower drawer space in sequence. That is, at least one storing space includes upper tray space, upper drawer space, lower floor's tray space and lower floor's drawer space that set gradually from the top down to set up the cold-stored space in upper tray space top. A tray can be arranged in the upper tray space and the lower tray space; a drawer can be arranged in the upper drawer space and the lower drawer space; a temperature changing space 120 can be arranged between the refrigerating space 110 and the freezing space 130 and is separated by a partition; a clapboard is also arranged between the upper drawer space and the lower tray space. In some alternative embodiments, the four spaces arranged one above the other may be separated only by a partition.

further, in some embodiments, the plurality of first ducts of the first duct layer may be in communication with the refrigerated space at a plurality of locations of the refrigerated space, and the plurality of second ducts of the second duct layer may be in communication with the refrigerated space. In other embodiments, a portion of the first air ducts of the first air duct layer may be in communication with the refrigerated space at a plurality of locations in the refrigerated space, a plurality of the second air ducts of the second air duct layer may be in communication with the refrigerated space at a plurality of locations in the refrigerated space, and the remaining first air ducts of the first air duct layer may be in communication with the refrigerated space. The special structure of the air outlet device 300 and the air duct assembly 200 can make the air flow enter the storage space of the refrigerator through the two air ducts, especially conveniently enter a plurality of positions of the storage space, and the design of the air supply position is particularly convenient, so that the reasonable position can be supplied with air. The first air outlet 311 and the second air outlet 321 of the air outlet device 300 are designed in positions, so that air can be supplied to the two air ducts conveniently, the design is reasonable, and the structure is compact.

in some embodiments of the present invention, each of the first outlets 311 of some or all of the first outlets 311 is connected to two first air ducts, so that the airflow flowing out of the first outlet 311 flows to two lateral sides of the rear portion of a storage space, so that the airflow is distributed as uniformly as possible in the storage compartment. Further, each of the second air outlets 321 of some or all of the second air outlets 321 is communicated with two second air ducts, so that the air flowing out of the second air outlets 321 flows to two lateral sides of the rear portion of the storage space.

in some embodiments of the present invention, as shown in fig. 3 and 4, the duct assembly 200 may include a rear case portion 210, a first front cover 220 mounted to a front side of the rear case portion 210, and a second front cover 230 mounted to a front side of the first front cover 220. The first air duct layer and the receiving cavity are located at the rear side of the first front cover 220. The second air duct layer is positioned at the front side of the first front cover 220. The first front cover 220 can be connected to the rear housing portion 210 in a snap-fit manner, and the second front cover 230 can be fixed to the first front cover 220 and the rear housing portion 210 by a fixing device such as a screw. The rear housing portion 210 may be snap-fitted to the case.

for example, in some embodiments of the present invention, as shown in FIG. 4, the rear housing portion 210 includes a rear housing 211 and a wind tunnel bridge 212. The rear housing 211 may have a rear wall 2111, a containment chamber wall 2112 extending forwardly from a middle or upper portion of the rear wall 2111, a first airway wall 2113 extending forwardly from the rear wall 2111, and a third airway wall 2114 extending rearwardly from the rear wall 2111. The duct bridge 212 may be mounted to an upper portion of the rear housing 211, and in particular may be located at an upper side of the receiving cavity, and has a fourth duct wall 2121 and a fifth duct wall 2122 extending forwardly from the fourth duct wall 2121. The rear wall 2111, the containment chamber wall 2112 and the wind tunnel bridge 212 and the first front cover 220 together define a containment chamber. The rear side of the fourth air duct wall 2121 and the third air duct wall 2114 define a first air duct communicated with the accommodating chamber, and the first air duct extends from the accommodating chamber to the rear upper side of the accommodating chamber. The rear wall 2111, the front side of the fourth airway wall 2121, the first and fifth airway walls 2113, 2122, and the first front cover 220 collectively define each of the remaining first air paths. In some alternative embodiments of the present invention, the rear housing 211 and the air duct bridge 212 may be integrally injection molded. However, when the rear case 211 and the air duct bridge 212 are two structural members, the installation of the air duct assembly 200 and the air outlet device 300 is facilitated.

further, the plurality of first outlets 311 includes a first outlet, a second outlet and a third outlet. The first air outlet is disposed on the upper side of the peripheral wall portion 310, and the second air outlet and the third air outlet are disposed on two sides of the first air outlet. The plurality of first air ducts include a first air duct 241, a second air duct 242, a third air duct 243, a fourth air duct 244 and a fifth air duct 245. The first air channel 241 is the first air channel extending from the accommodating cavity to the rear upper part of the accommodating cavity, and the first air outlet is communicated with the first air channel 241. Air duct two 242 extends obliquely upward from the air outlet two to one lateral side of the upper portion of the rear housing 211, and air duct three 243 extends upward from the air outlet two and then extends from the air duct bridge 212 across the air duct one 241 to the other lateral side of the upper portion of the rear housing 211. The air duct four 244 and the air duct five 245 both extend downwards from the air outlet three, and the tail end of the air duct four 244 and the tail end of the air duct five 245 are located at two lateral sides of the lower portion of the rear shell 211.

in some embodiments of the present invention, the first front cover 220 has a cover plate 221 and a second air duct wall 222 extending forward from the cover plate 221. The cover plate 221, the second air duct wall 222, and the second front cover 230 collectively define a plurality of second air ducts. The cover 221 is provided with a plurality of communication holes 2211, and each second air outlet 321 is aligned with one communication hole 2211, so that each second air outlet 321 is communicated with at least one corresponding second air duct through one communication hole 2211.

further, the plurality of second air outlets 321 includes an air outlet four, an air outlet five, and an air outlet six. The air outlet four is disposed at the lower portion of the first axial end 320. The fifth outlet and the sixth outlet are disposed at both sides of the upper portion of the first axial end 320. The second plurality of air ducts includes air duct six 246, air duct seven 247, air duct eight 248, and air duct nine 249. The air ducts six 246 and seven 247 extend downward from the communication hole 2211 aligned with the air outlet four, and the ends of the air ducts six 246 and seven 247 are located at both lateral sides of the lower portion of the cover plate 221. The air duct eight 248 obliquely extends upwards from the communication hole 2211 aligned with the air outlet five to one lateral side of the upper part of the cover plate 221; the air duct nine 249 extends obliquely upward from the communication hole 2211 aligned with the air outlet six to the other lateral side of the upper portion of the cover plate 221.

in some embodiments of the present invention, the front side of the air chute assembly 200 is preferably a storage space. The cover 221 may be provided with a plurality of first air supply outlets 223 with forward openings, and each first air supply outlet 223 is communicated with the end of a corresponding first air duct. Further, the number of the first air blowing openings 223 is smaller than that of the first air duct, for example, the air blowing opening of the first air duct 241 may be disposed on the upper end surface of the air duct assembly 200, and only the first air duct defined by the first front cover 220 may communicate with a corresponding first air blowing opening 223. The second front cover 230 may be provided with a plurality of second blowing openings 231 with front openings, and each second blowing opening 231 is communicated with a corresponding end of the second air duct. The first air supply opening 223 and the second air supply opening 231 are particularly convenient for the refrigerator to supply air to the storage space at the front side of the air duct assembly 200.

for example, the front of the air duct assembly 200 may be the refrigerated space 130. The second air duct 242 and the third air duct 243 are communicated with the upper drawer space, and specifically supply air to the upper drawer space on both lateral sides of the upper drawer space. The air duct four 244 and the air duct five 245 are communicated with the lower drawer space, and specifically supply air to the lower drawer space from two lateral sides of the lower drawer space. Air ducts six 246 and seven 247 communicate with the lower tray space, specifically, supply air to the lower tray space on both lateral sides of the lower tray space. The eight 248 and nine 249 air ducts communicate with the upper tray space, specifically, supply air to the upper tray space on both lateral sides of the upper tray space. The first air duct 241 can be conveniently communicated with the refrigerating space 110 above the freezing space 130 by using an air duct, and further, an air outlet of the first air duct 241 can be provided with an air door.

In some further embodiments of the present invention, at least an end portion of the first air duct communicating with each first air blowing port 223 and at least an end portion of the second air duct communicating with each second air blowing port 231 are gradually enlarged in the flow direction of the air current. Each of the first blowing ports 223 and each of the second blowing ports 231 may be an elongated blowing port extending in a horizontal longitudinal direction. Partition plates may be provided in each of the first air blowing port 223 and the second air blowing port 231 so that the air blowing port is a plurality of small air blowing holes. Further, the lower end of the rear case 211 has a return air duct case 213 extending forward, and the return air duct case 213 has one or more return air ducts 2131. The return air duct shell 213 extends first forward and then downward to conform to the compressor compartment at the lower portion of the cabinet 100.

In some alternative embodiments of the present invention, a plurality of third air blowing openings with a front opening may be provided on the cover plate 221, and each third air blowing opening may communicate with any position between the beginning and the end of a corresponding first air duct, that is, some first air ducts may communicate with the storage compartment not only at the end thereof but also at other positions thereof. Similarly, the second front cover 230 may be provided with a plurality of fourth air blowing ports, each of which is open forward, and each of the fourth air blowing ports may be communicated with any position between the beginning and the end of a corresponding second air duct.

in some embodiments of the present invention, as shown in fig. 5 and fig. 6, the air outlet device 300 further includes a second axial end 330 disposed at the other end of the peripheral wall 310, and the second axial end 330 is provided with an air inlet. Preferably, the cooling space is at the rear side of the air duct assembly 200. The opening of the accommodating space faces the rear side, and the air inlet faces the cooling space. Further preferably, the rear wall 2111 of the rear housing 211 may include a middle lower wall portion, an upper wall portion, and a connecting wall portion. The middle lower wall portion is located on the front side of the upper wall portion, and the connecting wall portion connects the upper end of the middle lower wall portion and the lower end of the upper wall portion. The arrangement can provide a larger placing space for the placement of the evaporator and the like, is convenient for the installation of the air outlet device 300, and has a particularly reasonable design.

in some embodiments of the present invention, as shown in fig. 5 and 6, the air outlet device 300 further includes a blower 360 configured to promote the airflow from the air inlet into the peripheral wall portion 310. The fan 360 is preferably a centrifugal fan. The design of the fan 360 in the air outlet device 300 can further make the refrigerator compact in structure, and the size of the storage space can be effectively enlarged. In some preferred embodiments of the present invention, the air outlet device 300 further includes an adjusting portion 350, which is rotatably disposed in the peripheral wall 310 relative to the peripheral wall 310, so as to completely shield, partially shield or completely expose each of the first air outlets 311 at different moving positions, thereby adjusting the air outlet area of each of the first air outlets 311. The setting of regulating part 350 can carry out unified control to the air supply volume in storing space, but rational distribution air supply volume improves the refrigeration effect of refrigerator to and fresh-keeping effect.

In some embodiments of the present invention, the peripheral wall portion 310 is preferably cylindrical, and may be integrally formed with one of the first axial end 320 and the second axial end 330, and the other may be engaged with the peripheral wall portion 310. The integral structure of the peripheral wall portion 310, the first axial end 320 and the second axial end 330 may also be referred to as a housing of the air outlet device 300. The plurality of second air outlets 321 are sequentially arranged, preferably uniformly sequentially arranged, in the circumferential direction of the first axial end 320. Of course, the plurality of second air outlets 321 may also be unevenly disposed along the circumferential direction of the first axial end 320. Further, the first axial end 320 includes a central portion and a peripheral portion located outside the central portion, and each of the second air outlets 321 is disposed on the peripheral portion for facilitating air outlet. The fan 360 may be installed at the central portion. Preferably, each of the second air outlets 321 may have an annular segment shape extending in a circumferential direction of the first axial end 320.

in some embodiments of the present invention, one first air outlet 311 is disposed on the peripheral wall section of the peripheral wall portion 310 between each two adjacent second air outlets 321. The arrangement can fully utilize the airflow entering the peripheral wall 310, ensure the airflow entering the second outlet 321, ensure smooth air outlet, prevent the airflow entering the first outlet 311 and the second outlet 321 from generating serious interference, and prevent adverse phenomena such as loud noise and the like.

In order to make each second outlet 321 perform axial air outlet as much as possible, i.e. each second outlet 321 is configured to axially outlet air, the peripheral portion may be configured to include a flat plate portion and at least one guide portion 322. The flat plate portion is provided with at least one second air outlet 321. Further, in some embodiments, each guide 322 extends obliquely from an edge of one of the second air outlets 321 adjacent to the peripheral wall portion 310, inwardly of the first axial end 320 and toward the axis of the peripheral wall portion 310. The guide 322 may have a plate shape and may also be referred to as a guide plate. Further, both ends of each guide portion 322 may also be provided with guide shielding plates. In other embodiments, each guide portion 322 extends obliquely from an edge of one of the second air outlets 321 away from the peripheral wall portion 310 to an outside of the first axial end portion 320 and in a direction away from the axis of the peripheral wall portion 310. The guide 322 may have a plate shape and may also be referred to as a guide plate. Further, both ends of each guide portion 322 may also be provided with guide shielding plates. The inclination angle of the guide portion 322 may be 30 ° to 60 °, preferably 40 °, 43 °, 45 °, 47 °, 50 °, or the like. The central portion may be flat. In some alternative embodiments, the guide portion 322 may also be only a guide surface that guides the flow of the air stream to simplify the structure of the first axial end 320 or to facilitate the design of the first axial end 320.

In some embodiments of the present invention, the regulating portion 350 may include one or more shielding portions 351 spaced apart in a circumferential direction of the first axial end portion 320, and at least one flow portion 352. The shielding portions 351 and the flow-through portions 352 are arranged in sequence in the circumferential direction of the first axial end 320, and one or more shielding portions 351 and at least one flow-through portion 352 enclose a cylindrical structure. Furthermore, the adjusting portion 350 is disposed inside the peripheral wall portion 310, and when the adjusting portion is rotated to different rotation positions, the one or more shielding portions 351 completely shield, partially shield or completely expose each first air outlet 311, so that the airflow enters the partially shielded or completely exposed first air outlet 311 through the at least one circulating portion 352.

in particular, the shielding portions 351 may be shielding sheets, and the space, gap or hole between every two adjacent shielding sheets may be the flow-through portion 352, in particular, when there is only one shielding portion 351, then there is only one corresponding flow-through portion 352. For example, the adjustment portion 350 may include a base portion, a shade sheet disposed on the base portion. For another example, the adjusting portion 350 may include a cylinder, and a plurality of flow portions 352 are formed on the cylinder. Both ends of the cylindrical member may be provided with a base portion to improve strength. Further alternatively, the base may be adapted to be rotatably mounted to either the first axial end 320 or the second axial end 330. For example, an annular groove may be provided on the inner surface of the first axial end 320 or the second axial end 330, and an annular protrusion corresponding to the annular groove may be provided on the base to be inserted into the annular groove for rotation. Still alternatively, the base portion may be rotatably mounted to one end of the peripheral wall portion 310, and when the peripheral wall portion 310 is integrally formed with the first axial end portion 320, the base portion may be rotatably mounted to one end of the peripheral wall portion 310 near the second axial end portion 330.

In some embodiments of the present invention, the air outlet device 300 may further include a motor 370 and a transmission mechanism. The motor 370 may be disposed radially outward of the peripheral wall portion 310. The transmission mechanism is configured to transmit the rotational motion output by the motor 370 to the adjustment part 350. For example, the transmission mechanism may preferably be a gear transmission mechanism, a gear ring 380 is disposed on the base of the adjusting portion 350 (the gear ring 380 may be integrally formed with the base), and a gear may be mounted on the output end of the motor 370, and the gear is engaged with the gear ring 380, so that the motor 370 can drive the gear ring 380 to rotate, and then the adjusting portion 350 to rotate. Further, a motor accommodating part may be provided outside the peripheral wall part 310 to accommodate the motor 370.

In some specific embodiments of the present invention, the second outlet, the first outlet and the third outlet are sequentially spaced along the circumferential direction of the first axial end 320 and may be spaced along the counterclockwise direction (based on the line of sight of the observer looking from the first axial end 320 to the second axial end 330, i.e. the line of sight viewed from the front-back direction). And, the distance between the second air outlet and the other two first air outlets 311 can be the length of one first air outlet 311. In the adjustment portion 350, the number of the blocking portion 351 and the flow portion 352 is three. The three shielding portions 351 are a first shielding portion, a second shielding portion, and a third shielding portion, respectively. The three flow portions 352 are a first flow portion, a second flow portion, and a third flow portion, respectively. The blocking portion 351 and the flow portion 352 are sequentially provided at intervals in the circumferential direction of the first axial end 320 and in the counterclockwise direction. The first and second shielding portions are each configured to allow it to completely shield an area of the one-size first air outlet 311. The third shielding portion is configured to allow it to completely shield at least the area of the two sizes of the first air outlets 311, for example, the third shielding portion can shield the area of the two sizes of the first air outlets 311. The flow portion between the first shielding portion and the second shielding portion is a first flow portion, and is configured to completely expose an area of the first outlet 311 of one size. The flow portion between the second shielding portion and the third shielding portion is a second flow portion, and is configured to completely expose an area of the first air outlet 311 of one size. The flow part between the third shielding part and the first shielding part is a third flow part. During operation, the adjusting portion 350 rotates to open different first outlets 311, for example, when the first shielding portion shields the first outlet, the second outlet and the third outlet may be opened; for another example, when the second shielding portion shields the air outlet, both the air outlet two and the air outlet three can be in a closed state.

in some alternative embodiments of the present invention, the distance between the first air outlet and the other two first air outlets 311 may be 1/7 to 1/10 of the length of one first air outlet 311. In the adjustment portion 350, the number of the blocking portion 351 and the flow portion 352 is two. The two shielding portions 351 are a first shielding portion and a second shielding portion, respectively. The two flow portions 352 are a first flow portion and a second flow portion, respectively. The blocking portion 351 and the flow portion 352 may be sequentially provided at intervals in the circumferential direction of the first axial end 320 and in the clockwise direction. The first shielding portion is configured to allow it to completely shield one first air outlet 311. The second shielding portion is configured to allow it to completely shield at least two first air outlets 311, for example, the second shielding portion can shield three first air outlets 311 and a connecting section of the peripheral wall portion 310 between every two first air outlets 311. The first circulating portion is configured to completely expose one first outlet 311. The second flow-through portion is configured to completely expose the three first air outlets 311. During operation, the adjusting portion 350 rotates to open different first outlets 311, for example, when the first shielding portion shields the first outlet, the second outlet and the third outlet may be opened; for another example, when the first circulation portion communicates with the first air outlet, both the second air outlet and the third air outlet can be in a closed state.

in some embodiments of the present invention, the sizes of any two first outlets 311 of the plurality of first outlets 311 may be equal or different. The sizes of any two second outlets 321 in the plurality of second outlets 321 may be equal or different.

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

Claims

1. A refrigerator, characterized by comprising:

2. the refrigerator according to claim 1,

each first air outlet in part or all of the first air outlets is communicated with two first air ducts, so that the airflow flowing out of the first air outlets flows to two transverse sides of the rear part of the storage space.

3. The refrigerator according to claim 1,

Each second air outlet in part or all of the second air outlets is communicated with two second air ducts, so that the air flow flowing out of the second air outlets flows to two transverse sides of the rear part of the storage space.

4. The refrigerator according to claim 1,

The air duct assembly comprises a rear shell, a first front cover and a second front cover, wherein the first front cover is mounted on the front side of the rear shell, and the second front cover is mounted on the front side of the first front cover;

5. the refrigerator of claim 4, wherein the rear case part comprises:

6. the refrigerator according to claim 5,

the first front cover is provided with a cover plate and a second air duct wall extending forwards from the cover plate;

7. The refrigerator according to claim 6,

a plurality of first air supply outlets with forward openings are arranged on the cover plate, each first air supply outlet is communicated with the tail end of one corresponding first air channel, and the number of the first air supply outlets is smaller than that of the first air channels;

8. The refrigerator according to claim 6,

the plurality of first air outlets comprise an air outlet I, an air outlet II and an air outlet III, the air outlet I is arranged on the upper side of the peripheral wall part, and the air outlet II and the air outlet III are arranged on two sides of the air outlet I;

9. The refrigerator according to claim 8,

the at least one storage space comprises an upper tray space, an upper drawer space, a lower tray space and a lower drawer space which are sequentially arranged from top to bottom, and a refrigerating space arranged above the upper tray space; and is

the first air duct is communicated with the refrigerating space;

10. The refrigerator according to claim 1, wherein the air outlet device further comprises:

the fan is a centrifugal fan.