WO2019001501A1

WO2019001501A1 - Refrigerator

Info

Publication number: WO2019001501A1
Application number: PCT/CN2018/093282
Authority: WO
Inventors: 程学丽; 费斌; 尚亚洲; 刘金林
Original assignee: 青岛海尔股份有限公司
Priority date: 2017-06-29
Filing date: 2018-06-28
Publication date: 2019-01-03
Also published as: CN107270618A; CN107270618B

Abstract

A refrigerator, comprising: a refrigerator body (100), which is provided with a cooling space and at least one storage space; an air discharge device (300), which is provided with a peripheral wall portion (310) that extends in the longitudinal direction of the refrigerator body (100) and a first axial end portion (320) that is disposed at one end of the peripheral wall portion (310), a plurality of first air outlets (311) being disposed on the peripheral wall portion (310), and at least one second air outlet (321) being disposed on the first axial end portion (320); and an air duct assembly (200), which is mounted to the refrigerator body (100). The structure of the refrigerator is well-designed, and the refrigerator may effectively supply air.

Description

refrigerator

The present application claims the priority of the Japanese Patent Application Serial No. JP-A--------

Technical field

The present invention relates to the field of refrigerated frozen storage, and more particularly to a refrigerator.

Background technique

In recent years, with the improvement of people's living standards and environmental awareness, the requirements for refrigerators have shifted from satisfying the preservation performance of low-temperature refrigeration to food. Therefore, air-cooled refrigerators are gradually favored by people. For air-cooled refrigerators, the freshness of the food depends to a large extent on the airflow circulation in the storage compartment of the air-cooled refrigerator and the temperature difference between the various parts of the tank. The airflow in the box is reasonable, and the smaller the temperature difference, the better the freshness preservation performance of the refrigerator. The key component that determines whether the airflow cycle of the refrigerator is reasonable is the air duct, which determines how the wind is delivered to a reasonable location in the storage room. In the current air-cooled refrigerator airway design on the market, most air-cooled refrigerators are equipped with evaporators in a separate accommodation room, which uses a complicated air duct system to connect the evaporator's accommodation chamber to each storage space, resulting in The design of the existing air duct system is relatively complicated and the structure is relatively large, and the wind cannot be transported to the intended position due to the limitation of the structure of the existing air duct system.

Summary of the invention

The object of the present invention is to overcome at least one of the defects of the existing air-cooled refrigerator, and to provide a novel refrigerator having a special air duct system, which can make the structural design of the refrigerator reasonable and can effectively supply air.

In particular, the present invention provides a refrigerator comprising:

a tank having a cooling space and at least one storage space;

An air outlet device having a peripheral wall portion extending in a longitudinal direction of the casing and a first axial end portion disposed at one end of the peripheral wall portion; the peripheral wall portion is provided with a plurality of first outlets a tuyere, the first axial end portion is provided with a plurality of second air outlets; and

a duct assembly installed in the box; the air duct assembly has a receiving cavity for housing the air outlet device, and a first air duct layer and a second wind disposed in sequence along a longitudinal direction of the box body Road layer

The first air duct layer includes a plurality of first air passages, and the airflow flowing out of the cooling space flows to the plurality of first air outlets and the plurality of first air ducts of the air outlet device Said at least one storage space;

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

Optionally, each of the first air outlets of some or all of the first air outlets communicates with the two first air passages to flow airflow flowing out of the first air outlet to a storage space. The lateral sides of the back.

Optionally, each of the second air outlets of some or all of the second air outlets communicates with the two second air ducts to flow airflow out of the second air outlet to a storage space. The lateral sides of the back.

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 passage layer and the receiving cavity are located at a rear side of the first front cover;

The second air passage layer is located on a front side of the first front cover.

Optionally, the rear shell portion comprises:

a rear case having a rear wall, a receiving chamber wall extending forward from a middle or upper portion of the rear wall, a first duct wall extending forward from the rear wall, and rearward from the rear wall Extending the third duct wall;

a duct bridge, mounted on an upper portion of the rear casing, having a fourth duct wall and a fifth duct wall extending forward from the fourth duct wall;

The rear wall, the receiving chamber wall and the air duct bridge and the first front cover collectively define the receiving cavity;

The rear side of the fourth air duct wall and the third air duct wall together define a first air passage communicating with the receiving cavity, and the first air passage is from the receiving cavity to the Extending the rear upper side of the receiving cavity;

The rear wall, the front side of the fourth air duct wall, the first air duct wall and the fifth air duct wall, and the first front cover collectively define each of the remaining first winds Road.

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

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

The cover plate is provided with a plurality of communication holes, each of the second air outlets being aligned with one of the communication holes, such that each of the second air outlets corresponds to at least one of the communication holes One of the second air passages is in communication.

Optionally, the cover plate is provided with a plurality of first air supply openings with openings facing forward, each of the first air supply openings communicating with a corresponding end of the first air channel, and the first The number of air supply openings is smaller than the number of the first air passages;

The second front cover is provided with a plurality of second air outlets with openings facing forward, and each of the second air outlets communicates with a corresponding end of the second air duct.

Optionally, the plurality of first air outlets include an air outlet 1, an air outlet 2, and an air outlet 3. The air outlet is disposed on an upper side of the peripheral wall portion, the air outlet 2 and the air outlet Three disposed on both sides of the air outlet 1;

The plurality of first air passages include a duct 1, a duct 2, a duct 3, a duct 4, and a duct 5;

The air passage is a first air passage extending from the accommodating cavity to a rear upper side of the accommodating cavity, and the air outlet is connected to the air passage;

The air duct 2 extends obliquely upward from the air outlet 2 to a lateral side of an upper portion of the rear casing, and the air passage 3 extends upward from the air outlet 2 and passes over the air passage bridge. The air duct extends toward the other lateral side of the upper portion of the rear casing;

The air duct 4 and the air duct five both extend downward from the air outlet three, and the end of the air duct four and the end of the air duct five are located on two lateral sides of the lower portion of the rear shell;

The plurality of second air outlets include an air outlet 4, an air outlet 5, and an air outlet 6. The air outlet 4 is disposed at a lower portion of the first axial end, the air outlet 5 and the air outlet 6 Provided on both sides of the upper portion of the first axial end portion;

The plurality of the second air passages include a duct 6, a duct 7, a duct eight, and a duct nine;

The air duct six and the air duct seven extend downward from a communication hole aligned with the air outlet four, and an end of the air duct six and an end of the air duct seven are located at a lower portion of the cover plate Lateral sides;

The air duct eight extends obliquely upward from a communication hole aligned with the air outlet five to a lateral side of an upper portion of the cover plate; the air passage nine is upward from a communication hole aligned with the air outlet six The slope extends to the other lateral side of the upper portion of the cover.

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 arranged in order from the top to the bottom, and a refrigerating space disposed above the upper tray space;

The air duct is in communication with the refrigerating space;

The air duct 2 and the air duct 3 are in communication with the upper drawer space;

The air duct four and the air duct five are in communication with the lower drawer space;

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

The air duct eight and the air duct nine are in space communication with the upper tray;

The lower end of the rear casing has a forwardly extending return air duct casing, and the return air duct casing has one or more return air ducts.

Optionally, the air outlet device further includes:

a second axial end portion is disposed at the other end of the peripheral wall portion, and the second axial end portion is provided with an air inlet;

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

The adjusting portion is rotatably disposed in the peripheral wall portion with respect to the peripheral wall portion to completely shield, partially shield or completely expose each of the first air outlets at different movement positions, thereby adjusting the The respective outlet areas of the plurality of first air outlets;

The cooling space is on a rear side of the air duct assembly, and the air inlet port faces the cooling space;

The fan is a centrifugal fan.

In the refrigerator of the present invention, since the air duct assembly has two layers of air passages, and further includes an air outlet device, the air flow can enter the storage space of the refrigerator through the two-layer air passage, especially at a plurality of positions convenient for entering the storage space. It is especially convenient for the design of the air supply position so that a reasonable position can be supplied with air. Moreover, the flow path of each air passage is relatively short, which can significantly reduce the wind resistance, improve the smoothness of the air supply, provide the best storage environment for the food, reduce the nutrient loss of the food, and reduce the power consumption of the refrigerator and save energy. To reduce noise.

Further, in the refrigerator of the present invention, since the air outlet device has the adjusting portion, it is possible to adjust the air flow rate of some or all of the air blowing ports, thereby adjusting the cooling amount sent to the storage space, which not only simplifies the structure, for example, The structure of the fan of the existing air-cooled refrigerator, a plurality of dampers, and the like can be omitted. Moreover, the air supply volume of the storage space can be uniformly controlled, and the air supply amount can be reasonably distributed, and the refrigeration effect of the refrigerator and the fresh-keeping effect can be improved. The design of the fan in the air outlet device can further make the structure of the refrigerator compact, and can effectively enlarge the volume of the storage space.

The above as well as other objects, advantages and features of the present invention will become apparent to those skilled in the <

DRAWINGS

Some specific embodiments of the present invention will be described in detail, by way of example, and not limitation, The same reference numbers in the drawings identify the same or similar parts. Those skilled in the art should understand that the drawings are not necessarily drawn to scale. In the figure:

1 is a schematic structural view of a refrigerator in accordance with one embodiment of the present invention;

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

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

Figure 4 is a schematic exploded view of the bottom casing portion of the air duct assembly of Figure 3;

Figure 5 is a schematic structural view of the wind device shown in Figure 3;

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

Detailed ways

1 is a schematic structural view of a refrigerator in accordance with 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 and a duct assembly 200, and a refrigeration system. The housing 100 can have a cooling space and at least one storage space therein. The refrigeration system may be a compression refrigeration system having an evaporator disposed within the cooling space. As is known to those skilled in the art, the refrigeration system can also be other types of refrigeration systems, such as semiconductor refrigeration systems, and the cold end diffuser of the semiconductor refrigeration system can be disposed in the cooling space.

The duct assembly 200 can be mounted to the cabinet 100. The duct assembly 200 has a housing chamber for housing the air outlet device 300, and a first duct layer and a second duct layer disposed in sequence along the longitudinal direction of the refrigerator, as shown in Figs. 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 mounted in the housing cavity of the air duct assembly 200, as shown in FIG. The air outlet device 300 may have a peripheral wall portion 310 and a first axial end portion 320 disposed at one end of the peripheral wall portion 310, as shown in FIGS. 5 and 6. The peripheral wall portion 310 may extend in the longitudinal direction of the casing 100, that is, the axial direction of the peripheral wall portion 310 extends in the longitudinal direction of the casing 100. A plurality of first air outlets 311 are disposed on the peripheral wall portion 310, and a plurality of second air outlets 321 are disposed on the first axial end portion 320. The airflow flowing out of the cooling space flows to the at least one storage space via 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 passes through the plurality of second air outlets of the air outlet device 300 The tuyere 321 and the plurality of second air ducts flow to the at least one storage space.

For example, in some embodiments of the present invention, the at least one storage space may include a refrigerated space 110 above and a freezing space 130 below, and the freezing space 130 may also be divided into four layers of space arranged one above the other. In some optional embodiments, the four layers of space arranged one above the other are the upper tray space, the upper drawer space, the lower tray space, and the lower drawer space. That is, the at least one storage space includes an upper tray space, an upper drawer space, a lower tray space, and a lower drawer space which are sequentially disposed from the top to the bottom, and a refrigerating space disposed above the upper tray space. A tray can be installed in the upper tray space and the lower tray space; a drawer can be installed in the upper drawer space and the lower drawer space; a variable temperature space 120 can be disposed between the refrigerating space 110 and the freezing space 130, and is separated by a partition A partition is also provided between the upper drawer space and the lower tray space. In some alternative embodiments, the four layers of space disposed one above the other may be separated by only a partition.

Further, in some embodiments, the plurality of first air ducts of the first air duct layer may communicate with the freezing space at a plurality of locations of the freezing space, and the plurality of second air ducts of the second air duct layer may be refrigerated Space connectivity. In other embodiments, a portion of the first air duct of the first air duct layer may communicate with the freezing space at a plurality of locations of the freezing space, and the plurality of second air ducts of the second air duct layer may be more in the freezing space. The locations are in communication with the freezing space, and the remaining first air ducts of the first air duct layer are connectable to the refrigerating space. The special structure of the air outlet device 300 and the air duct assembly 200 allows the airflow to enter the storage space of the refrigerator through the two-layer air duct, especially at a plurality of positions convenient for entering the storage space, and is particularly convenient for the design of the air supply position, so that reasonable The position can be supplied with air. The positions of the first air outlet 311 and the second air outlet 321 of the air outlet device 300 are particularly convenient for air supply to the two-layer air duct, and the design is reasonable and the structure is compact.

In some embodiments of the present invention, each of the first air outlets 311 of the first or second air outlets 311 communicates with the two first air ducts to flow the airflow flowing out of the first air outlets 311 to a storage space. The lateral sides of the rear portion are such that the airflow is distributed as evenly as possible within the storage compartment. Further, each of the second air outlets 321 of the second or second air outlets 321 communicates with the two second air ducts, so that the airflow flowing out of the second air outlets 321 flows to the lateral two of the rear of the storage space. side.

In some embodiments of the present invention, as shown in FIGS. 3 and 4, the air duct assembly 200 may include a rear housing portion 210, a first front cover 220 mounted to the front side of the rear housing portion 210, and mounted on the front side. The second front cover 230 on the front side of the cover 220. The first duct layer and the accommodating chamber are located on the rear side of the first front cover 220. The second air passage layer is located on the front side of the first front cover 220. The first front cover 220 can be engaged with the rear case portion 210, and the second front cover 230 can be fixed to the first front cover 220 and the rear case portion 210 by a fixing device such as a screw. The rear casing portion 210 can be engaged with the casing.

For example, in some embodiments of the invention, as shown in FIG. 4, the rear housing portion 210 includes a rear housing 211 and a duct bridge 212. The rear case 211 may have a rear wall 2111, a receiving chamber wall 2112 extending forward from a central portion or an upper portion of the rear wall 2111, a first duct wall 2113 extending forward from the rear wall 2111, and a rearward wall 2111 from the rear wall 2111. The third duct wall 2114 extends. The duct bridge 212 may be mounted to an upper portion of the rear casing 211, specifically on the upper side of the accommodating chamber, having a fourth duct wall 2121 and a fifth duct wall 2122 extending forward from the fourth duct wall 2121. The rear wall 2111, the receiving chamber wall 2112 and the air duct bridge 212, and the first front cover 220 collectively define a receiving cavity. The rear side of the fourth duct wall 2121 and the third duct wall 2114 together define a first duct communicating with the accommodating chamber, and the first duct extends from the accommodating chamber to the rear upper side of the accommodating chamber. The front wall 2111, the front side of the fourth duct wall 2121, the first duct wall 2113 and the fifth duct wall 2122, and the first front cover 220 collectively define the remaining first air ducts. In some alternative embodiments of the 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 air outlets 311 include an air outlet 1, an air outlet 2, and an air outlet 3. The air outlet is disposed on the upper side of the peripheral wall portion 310, and the air outlet 2 and the air outlet 3 are disposed on both sides of the air outlet. The plurality of first air passages include a duct 241, a duct 2 242, a duct 243, a duct 244, and a duct 245. The air duct 241 is the first air passage extending from the accommodating chamber to the rear upper side of the accommodating chamber, and the air outlet port is in communication with the air duct 241. The duct 2242 extends obliquely upward from the air outlet 2 to the lateral side of the upper portion of the rear casing 211, and the air passage 3243 extends upward from the air outlet 2 and then passes over the air duct 241 to the rear casing 211 from the air duct bridge 212. The upper side of the upper portion extends on the other side. Both the duct 4244 and the duct 5245 extend downward from the air outlet three, and the ends of the ducts 244 and the ends of the ducts 245 are located on the lateral sides of the lower portion of the rear casing 211.

In some embodiments of the invention, the first front cover 220 has a cover 221 and a second duct wall 222 that extends forwardly from the cover 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 plate 221 is provided with a plurality of communication holes 2211, and each of the second air outlets 321 is aligned with a communication hole 2211 such that each of the second air outlets 321 and the corresponding at least one second wind pass through a communication hole 2211. The road is connected.

Further, the plurality of second air outlets 321 include an air outlet 4, an air outlet 5, and an air outlet 6. The air outlet 4 is disposed at a lower portion of the first axial end portion 320. The air outlet 5 and the air outlet 6 are disposed on both sides of the upper portion of the first axial end portion 320. The plurality of second air passages include air duct six 246, air duct seven 247, air duct eight 248, and air duct nine 249. The duct 6246 and the duct 7247 extend downward from the communication hole 2211 aligned with the air outlet four, and the end of the duct 6246 and the end of the duct 7247 are located on both lateral sides of the lower portion of the cover plate 221. The air duct 248 extends obliquely upward from the communication hole 2211 aligned with the air outlet five to the lateral side of the upper portion 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 cover The other side of the upper side of 221 is lateral.

In some embodiments of the invention, the front side of the duct assembly 200 is preferably a storage space. The cover plate 221 may be provided with a plurality of first air supply openings 223 whose openings face forward, and each of the first air supply openings 223 communicates with the end of a corresponding first air passage. Further, the number of the first air blowing ports 223 is smaller than the number of the first air ducts. For example, the air blowing ports of the air ducts 241 may be disposed on the upper end surface of the air duct assembly 200, and only the first front cover 220 is required to be defined first. The air duct can be in communication with a corresponding first air supply port 223. The second front cover 230 may be provided with a plurality of second air blowing openings 231 whose openings face forward, and each of the second air blowing ports 231 communicates with the end of a corresponding second air duct. The arrangement of the first air supply port 223 and the second air supply port 231 is particularly convenient for the refrigerator to supply air to the storage space on the front side of the air duct assembly 200.

For example, the front of the duct assembly 200 can be a freezing space 130. The air duct two 242 and the air duct three 243 are in communication with the upper drawer space, specifically, the upper drawer space is blown on the lateral sides of the upper drawer space. The air duct four 244 and the air duct five 245 are in communication with the lower drawer space, specifically, the lower drawer space is blown on the lateral sides of the lower drawer space. The air duct six 246 and the air duct seven 247 are in communication with the lower tray space, specifically, the lower tray space is blown on the lateral sides of the lower tray space. The air duct eight 248 and the air duct nine 249 are in communication with the upper tray space, specifically, the wind is supplied to the upper tray space on the lateral sides of the upper tray space. The air duct 241 can be conveniently connected to the refrigerating space 110 above the freezing space 130 by using the air duct. Further, the air outlet of the duct 241 can also be provided with a damper.

In some further embodiments of the present invention, at least an end portion of the first air passage that communicates with each of the first air supply openings 223, and at least an end portion of the second air passage that communicates with each of the second air supply openings 231 The flow direction of the airflow gradually increases. Each of the first air blowing ports 223 and each of the second air blowing ports 231 may be an elongated air blowing port extending in the horizontal longitudinal direction. A partition plate may be disposed in each of the first air blowing ports 223 and each of the second air blowing ports 231, so that the air blowing ports are a plurality of air blowing holes. Further, the lower end of the rear casing 211 has a return air duct casing 213 extending forward, and the return air duct casing 213 has one or more return air ducts 2131. The return air duct casing 213 extends forward and then extends downwardly to accommodate the compressor compartment at the lower portion of the casing 100.

In some alternative embodiments of the present invention, the cover plate 221 may also be provided with a plurality of third air blowing openings with an opening, each of which may be between the beginning and the end of a corresponding first air duct. Any of the locations are connected, that is, some of the first air ducts can communicate not only with the storage compartment at their ends, but also with the storage compartment at other locations. Similarly, the second front cover 230 may be provided with a plurality of fourth air blowing openings with the opening facing forward, and each of the fourth air blowing openings may be at any position between the beginning and the end of a corresponding second air duct. Connected.

In some embodiments of the present invention, as shown in FIGS. 5 and 6, the air outlet device 300 further includes a second axial end portion 330 disposed at the other end of the peripheral wall portion 310 and on the second axial end portion 330. There is an air inlet. Preferably, the cooling space is on the rear side of the 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 case 211 may include a middle lower wall portion, an upper wall portion, and a connecting wall portion. The lower middle wall portion is 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. Such an arrangement can provide a large space for the placement of the evaporator or the like, and facilitate the installation of the air outlet device 300, and the design is particularly reasonable.

In some embodiments of the present invention, as shown in FIGS. 5 and 6, the air outlet device 300 further includes a fan 360 configured to cause 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 structure of the refrigerator compact, and can effectively enlarge the volume of the storage space. In some preferred embodiments of the present invention, the air outlet device 300 further includes an adjustment portion 350 rotatably disposed in the peripheral wall portion 310 with respect to the peripheral wall portion 310 to be opposite to each of the first movement positions at different movement positions. The tuyere 311 is completely shielded, partially shielded or completely exposed, thereby adjusting the respective outlet areas of the plurality of first air outlets 311. The setting of the adjusting unit 350 can uniformly control the air blowing amount of the storage space, and can reasonably distribute the air blowing amount, improve the cooling effect of the refrigerator, and the fresh-keeping effect.

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

In some embodiments of the present invention, a 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 . In this way, the airflow entering the peripheral wall portion 310 can be fully utilized, the airflow entering the second air outlet 321 can be ensured, and the airflow can be ensured smoothly, and the airflow entering the first air outlet 311 and the second air outlet 321 can be prevented from being seriously generated. Interference to prevent undesirable phenomena such as loud noise.

In order to make each of the second air outlets 321 to perform axial air as much as possible, that is, each of the second air outlets 321 is configured to be axially ventilated, the peripheral portion may be disposed to include a flat plate portion and at least one guiding portion 322. At least one second air outlet 321 is disposed on the flat plate portion. Further, in some embodiments, each of the guiding portions 322 extends obliquely from the edge of a second air outlet 321 adjacent the peripheral wall portion 310 toward the inside of the first axial end portion 320 and toward the axis of the peripheral wall portion 310. The guiding portion 322 may have a plate shape and may also be referred to as a guide plate. Further, a guide shielding plate may also be disposed at both ends of each guiding portion 322. In other embodiments, each of the guiding portions 322 extends obliquely from the edge of the second air outlet 321 away from the peripheral wall portion 310 toward the outside of the first axial end portion 320 and away from the axis of the peripheral wall portion 310. . The guiding portion 322 may have a plate shape and may also be referred to as a guide plate. Further, a guide shielding plate may also be disposed at both ends of each guiding portion 322. The inclination angle of the guiding portion 322 may be 30 to 60, preferably 40, 43, 45, 47, 50, or the like. The central part can be flat. In some alternative embodiments, the guide 322 may also only be a guide surface that directs the flow of airflow 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 invention, the adjustment portion 350 can include one or more obscuring portions 351 spaced apart in a circumferential direction of the first axial end portion 320, and at least one flow-through portion 352. The shielding portion 351 and the flow portion 352 are sequentially disposed in the circumferential direction of the first axial end portion 320, and the one or more shielding portions 351 and the at least one flow portion 352 enclose a cylindrical structure. Moreover, the adjusting portion 350 is disposed on the inner side of the peripheral wall portion 310, and the one or more shielding portions 351 are completely shielded, partially shielded or completely exposed to each of the first air outlets 311 at a rotation to different rotational positions, so that the airflow is caused. The partially vented or fully exposed first air outlet 311 is accessed via at least one flow portion 352.

Specifically, the shielding portion 351 can be a shielding piece, and the interval, the notch or the hole between each two adjacent shielding pieces can be the circulation portion 352. In particular, when there is only one shielding portion 351, the corresponding circulation portion 352 There is only one. For example, the adjustment portion 350 may include a base, a shielding piece disposed on the base. For another example, the adjusting portion 350 may include a tubular member, and the tubular member is provided with a plurality of circulating portions 352. A base portion may be provided at both ends of the tubular member to increase strength. Further optionally, the base can be used for rotational mounting to the first axial end 320 or the second axial end 330. For example, the inner surface of the first axial end portion 320 or the second axial end portion 330 is provided with an annular groove, and the base portion may be provided with an annular protrusion corresponding to the annular groove for inserting the annular groove for rotation. Still alternatively, the base is 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 is rotatably mounted to the second axial end portion of the peripheral wall portion 310 One end of the 330.

In some embodiments of the invention, the air outlet device 300 may also 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 of the output of the motor 370 to the adjustment portion 350. For example, the transmission mechanism may preferably be a gear transmission mechanism. The base of the adjustment portion 350 is provided with a ring gear 380 (the ring gear 380 may be integrally formed with the base portion), and the output end of the motor 370 may be equipped with a gear, and the gear meshes with the ring gear 380. Therefore, the motor 370 can drive the ring gear 380 to rotate, thereby driving the adjustment portion 350 to rotate. Further, a motor housing portion may be disposed on an outer side of the peripheral wall portion 310 to accommodate the motor 370.

In some embodiments of the present invention, the air outlet 2, the air outlet 1 and the air outlet 3 are in a circumferential direction of the first axial end portion 320 and may be in a counterclockwise direction (by the observer from the first axial direction) The end portion 320 is sequentially spaced apart from the line of sight of the second axial end portion 330 as a reference, that is, the line of sight viewed in the front-rear direction. Moreover, the distance between the air outlet 2 and the other two first air outlets 311 may be the length of one first air outlet 311. In the adjustment unit 350, the number of the shielding 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 shielding portion 351 and the flow portion 352 are sequentially spaced apart in the circumferential direction of the first axial end portion 320 and in the counterclockwise direction. Both the first obscuring portion and the second obscuring portion are configured to allow them to completely obscure the area of the first air outlet 311 of one size. The third shielding portion is configured to allow it to at least completely obscure the area of the first air outlet 311 of two sizes, for example, the third shielding portion can shield the area of the first air outlet 311 of two sizes. The flow portion between the first shielding portion and the second shielding portion is a first flow portion, and is disposed to completely expose a region of the first air outlet 311 of one size. The flow portion between the second shielding portion and the third shielding portion is a second flow portion configured to completely expose a region of the first air outlet 311 of one size. The flow portion between the third shielding portion and the first shielding portion is a third circulation portion. During operation, the adjusting portion 350 is rotated to open the different first air outlets 311. For example, when the first blocking portion blocks the air outlet, the air outlet 2 and the air outlet 3 may be in an open state; for example, when the second When the shielding part blocks the air outlet, the air outlet 2 and the air outlet 3 can be closed.

In some alternative embodiments of the present invention, the distance between the air outlet 1 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 unit 350, the number of the shielding portion 351 and the flow portion 352 are both two. The two shielding portions 351 are respectively a first shielding portion and a second shielding portion. The two flow portions 352 are a first flow portion and a second flow portion, respectively. The shielding portion 351 and the flow portion 352 are sequentially spaced apart in the circumferential direction of the first axial end portion 320 and in the clockwise direction. The first obscuration portion is configured to allow it to completely shield a first air outlet 311. The second shielding portion is configured to allow it to at least completely shield the two first air outlets 311. For example, the second shielding portion can shield the connection of the three first air outlets 311 and the peripheral wall portion 310 between each of the two first air outlets 311. segment. The first flow portion is configured to completely expose a first air outlet 311. The second circulation portion is configured to completely expose the three first air outlets 311. During operation, the adjusting portion 350 is rotated to open the different first air outlets 311. For example, when the first blocking portion blocks the air outlet, the air outlet 2 and the air outlet 3 may be in an open state; for example, when the first When the circulation part turns on the air outlet, the air outlet 2 and the air outlet 3 can be closed.

In some embodiments of the present invention, the size of any two of the plurality of first air outlets 311 may be equal or unequal. The size of any two of the plurality of second air outlets 321 may be equal or unequal.

In this regard, it will be appreciated by those skilled in the <RTIgt;the</RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; The content directly determines or derives many other variations or modifications consistent with the principles of the invention. Therefore, the scope of the invention should be understood and construed as covering all such other modifications or modifications.

Claims

A refrigerator, comprising:

a tank having a cooling space and at least one storage space;

An air outlet device having a peripheral wall portion extending in a longitudinal direction of the casing and a first axial end portion disposed at one end of the peripheral wall portion; the peripheral wall portion is provided with a plurality of first outlets a tuyere, the first axial end portion is provided with a plurality of second air outlets; and

a duct assembly installed in the box; the air duct assembly has a receiving cavity for housing the air outlet device, and a first air duct layer and a second wind disposed in sequence along a longitudinal direction of the box body Road layer

The first air duct layer includes a plurality of first air passages, and the airflow flowing out of the cooling space flows to the plurality of first air outlets and the plurality of first air ducts of the air outlet device Said at least one storage space;

The second air duct layer includes a plurality of second air ducts, and the airflow flowing out of the cooling space flows to the plurality of second air outlets and the plurality of second air ducts of the air outlet device Said at least one storage space.
The refrigerator according to claim 1, wherein

Each of the first air outlets of some or all of the first air outlets communicates with the two first air passages to flow airflow out of the first air outlet to a rear portion of the storage space Lateral sides.
The refrigerator according to claim 1, wherein

Each of the second air outlets of some or all of the second air outlets communicates with the two second air ducts to flow airflow out of the second air outlet to the rear of the storage space Lateral sides.
The refrigerator according to claim 1, wherein

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 passage layer and the receiving cavity are located at a rear side of the first front cover;

The second air passage layer is located on a front side of the first front cover.
The refrigerator according to claim 4, wherein the rear casing portion comprises:

a rear case having a rear wall, a receiving chamber wall extending forward from a middle or upper portion of the rear wall, a first duct wall extending forward from the rear wall, and rearward from the rear wall Extending the third duct wall;

a duct bridge, mounted on an upper portion of the rear casing, having a fourth duct wall and a fifth duct wall extending forward from the fourth duct wall;

The rear wall, the receiving chamber wall and the air duct bridge and the first front cover collectively define the receiving cavity;

The rear side of the fourth air duct wall and the third air duct wall together define a first air passage communicating with the receiving cavity, and the first air passage is from the receiving cavity to the Extending the rear upper side of the receiving cavity;

The rear wall, the front side of the fourth air duct wall, the first air duct wall and the fifth air duct wall, and the first front cover collectively define each of the remaining first winds Road.
The refrigerator according to claim 5, wherein

The first front cover has a cover plate and a second air duct wall extending forward from the cover plate;

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

The cover plate is provided with a plurality of communication holes, each of the second air outlets being aligned with one of the communication holes, such that each of the second air outlets corresponds to at least one of the communication holes One of the second air passages is in communication.
The refrigerator according to claim 6, wherein

The cover plate is provided with a plurality of first air blowing openings with openings facing forward, each of the first air blowing ports communicating with a corresponding end of the first air channel, and the number of the first air blowing ports Less than the number of the first air ducts;

The second front cover is provided with a plurality of second air outlets with openings facing forward, and each of the second air outlets communicates with a corresponding end of the second air duct.
The refrigerator according to claim 6, wherein

The plurality of first air outlets include an air outlet 1, an air outlet 2 and an air outlet 3. The air outlet is disposed on an upper side of the peripheral wall portion, and the air outlet 2 and the air outlet 3 are disposed at Describe the sides of the tuyere;

The plurality of first air passages include a duct 1, a duct 2, a duct 3, a duct 4, and a duct 5;

The air passage is a first air passage extending from the accommodating cavity to a rear upper side of the accommodating cavity, and the air outlet is connected to the air passage;

The air duct 2 extends obliquely upward from the air outlet 2 to a lateral side of an upper portion of the rear casing, and the air passage 3 extends upward from the air outlet 2 and passes over the air passage bridge. The air duct extends toward the other lateral side of the upper portion of the rear casing;

The air duct 4 and the air duct five both extend downward from the air outlet three, and the end of the air duct four and the end of the air duct five are located on two lateral sides of the lower portion of the rear shell;

The plurality of second air outlets include an air outlet 4, an air outlet 5, and an air outlet 6. The air outlet 4 is disposed at a lower portion of the first axial end, the air outlet 5 and the air outlet 6 Provided on both sides of the upper portion of the first axial end portion;

The plurality of the second air passages include a duct 6, a duct 7, a duct eight, and a duct nine;

The air duct six and the air duct seven extend downward from a communication hole aligned with the air outlet four, and an end of the air duct six and an end of the air duct seven are located at a lower portion of the cover plate Lateral sides;

The air duct eight extends obliquely upward from a communication hole aligned with the air outlet five to a lateral side of an upper portion of the cover plate; the air passage nine is upward from a communication hole aligned with the air outlet six The slope extends to the other lateral side of the upper portion of the cover.
The refrigerator according to claim 8, wherein

The at least one storage space includes an upper tray space, an upper drawer space, a lower tray space, and a lower drawer space disposed in order from the top to the bottom, and a refrigerated space disposed above the upper tray space;

The air duct is in communication with the refrigerating space;

The air duct 2 and the air duct 3 are in communication with the upper drawer space;

The air duct four and the air duct five are in communication with the lower drawer space;

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

The air duct eight and the air duct nine are in space communication with the upper tray;

The lower end of the rear casing has a forwardly extending return air duct casing, and the return air duct casing has one or more return air ducts.
The refrigerator according to claim 1, wherein the air outlet device further comprises:

a second axial end portion is disposed at the other end of the peripheral wall portion, and the second axial end portion is provided with an air inlet;

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

The adjusting portion is rotatably disposed in the peripheral wall portion with respect to the peripheral wall portion to completely shield, partially shield or completely expose each of the first air outlets at different movement positions, thereby adjusting the The respective outlet areas of the plurality of first air outlets;

The cooling space is on a rear side of the air duct assembly, and the air inlet port faces the cooling space;

The fan is a centrifugal fan.