WO2018108139A1

WO2018108139A1 - Branched air-feeding device and refrigerator provided with same

Info

Publication number: WO2018108139A1
Application number: PCT/CN2017/116341
Authority: WO
Inventors: 尚亚洲; 费斌; 程学丽
Original assignee: 青岛海尔股份有限公司
Priority date: 2016-12-15
Filing date: 2017-12-15
Publication date: 2018-06-21
Also published as: CN106766568A; CN106766568B

Abstract

Disclosed are a branched air-feeding device (20) and a refrigerator provided with the branched air-feeding device (20). The branched air-feeding device (20) comprises: a housing (100), wherein an air inlet is provided thereon, a plurality of air outlets are provided on the peripheral wall thereof, the direction of each air outlet is different from that of at least one air outlet in the rest of the air outlets; and a regulating device (200), comprising an air baffle sheet (210) and two rolling shafts (220) fixedly connected to two ends of the air baffle sheet (210) respectively, and used for winding the air baffle sheet (210); at least one through hole (213) is provided on the air baffle sheet (210), and is configured to move relative to the housing (100), so that the air outlet area of each of the air outlets is regulated; and each rolling shaft (220) can be rotatably mounted on the housing (100), and the two rolling shafts (220) are configured to drive the air baffle sheet (210) to move relative to the housing (100).

Description

Split air supply device and refrigerator having the same

This application claims the priority of the Chinese patent application whose application date is December 15, 2016, the application number is 201611162842.2, and the invention name is "the branch air supply device and the refrigerator having the shunt air supply device", the entire contents of which are This is incorporated herein by reference.

Technical field

The invention relates to the field of refrigerated and frozen storage, in particular to a shunt air supply device and a refrigerator having the shunt air supply device.

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 circulation of the refrigerator is reasonable is the air duct. It controls the wind direction and flow volume of the refrigerator, which directly determines the refrigeration and fresh-keeping effect of the refrigerator.

In addition, in order to optimize the storage space, a single storage room is generally divided into a plurality of refinement storage spaces by a shelf device such as a rack or a drawer, and each storage space is required to be cold depending on the amount of articles stored. The quantity is also different. Therefore, the cold air directly enters the storage room directly from somewhere in the storage room without control, which may cause some storage space to be too cold and some storage space to have insufficient cooling capacity.

At present, in the air-cooled refrigerator airway design on the market, some air-cooled refrigerators are directly discharged to the cold storage room by using the freezer compartment. There is no damper between the freezer compartment and the refrigerating compartment of the air-cooled refrigerator, and the various air passages on the air duct are connected in series. When the temperature of the refrigerating compartment reaches the set temperature, the cold air of the freezer compartment also flows to the refrigerating compartment, and the refrigerating compartment of the refrigerating compartment The temperature has been in a state of cyclic fluctuation, that is, the temperature in the refrigerating room has been changing, which greatly affects the freshness preservation performance of the refrigerator.

In the current air-cooled refrigerator airway design on the market, there are also some air-cooled refrigerators in which the evaporator is placed in a separate accommodation room, and the storage chamber of the evaporator is connected to each storage compartment by a complicated air duct system. The fan sends the cold air generated by the evaporator to each storage compartment. A control device (such as an electric damper) is provided in the air duct to open and close the air passage entering each storage room, or to adjust the air volume entering each storage room. However, this structure is more complicated and is not convenient for unified control. Moreover, it is impossible to allocate and regulate the cold air entering each storage room according to the cooling demand of each storage space.

Summary of the invention

The object of the first aspect of the present invention is to overcome at least one of the drawbacks of the prior art refrigerator, and to provide a shunt air supply device for a refrigerator to facilitate uniform adjustment of the flow path and/or flow rate of the cold air.

An object of the second aspect of the present invention is to provide a refrigerator having the above-described split air supply device.

According to a first aspect of the invention, the invention provides a shunt air supply device comprising:

a housing having an air inlet thereon, and a plurality of air outlets are defined in a peripheral wall thereof, and an orientation of each of the air outlets is different from an orientation of at least one of the other air outlets; and

An adjusting device comprising a windshield, and two reels respectively fixedly connected to both ends of the windshield and for winding the windshield;

The windshield is provided with at least one through hole configured to move relative to the housing to completely shield, partially shield or completely expose each of the air outlets at different movement positions, thereby adjusting the position Describe the respective outlet areas of the plurality of air outlets;

Each of the spools is rotatably mounted to the housing, and the two spools are configured to move the windshield relative to the housing.

Optionally, the peripheral wall includes at least two air outlet wall segments, each of the air outlet wall segments is of a flat type, and each of the air outlet wall segments is provided with one or more of the air outlets.

Optionally, two planes where each two adjacent air outlet wall segments are located are intersected; two of the air outlet wall segments adjacent to the same air outlet wall segment are in the same one The same side of the wind wall section.

Optionally, the number of the peripheral wall segments is three, and the angle between the two planes where each two adjacent air outlet wall segments are located is 60° to 120°; and each of the outlets One of the air outlets is opened on the wind wall section.

Optionally, two of the reels are disposed on an inner side of the peripheral wall;

The adjusting device further includes a windshield retaining device disposed on an inner side of the peripheral wall and configured to define a partial moving path of the windshield to complete each of the air outlets at different moving positions Shaded, partially obscured or fully exposed.

Optionally, the windshield retaining device includes a plurality of rollers disposed in the housing at intervals in a circumferential direction of the housing, and

A portion of the windshield moves between the peripheral wall and the plurality of rollers.

Optionally, the shunting device further includes a sealing member disposed on an inner side surface of the peripheral wall, and the sealing member is provided with a hole respectively aligned with the plurality of the air outlets;

A portion of the windshield moves along an inside surface of the seal.

Optionally, the shunt air supply device further includes a wind supply device configured to cause airflow from the air inlet to the housing, and outflow from the one or more of the plurality of air outlets to the shell body.

Optionally, the housing further includes:

a base having a base wall and the peripheral wall extending from an edge of the base wall toward a side of the base wall; and

a cover disposed at an end of the peripheral wall away from the base wall, the air inlet being opened on the cover;

The air supply device is a centrifugal impeller disposed in the housing such that an axis of rotation of the centrifugal impeller is parallel to an axial direction of the housing.

Optionally, the adjustment device is mounted within the housing and further includes a motor and a transmission mechanism configured to transmit rotational motion of the motor to the two reels.

Optionally, the motor is disposed radially outward of each of the reels; and the transmission mechanism comprises:

a driving gear mounted to an output shaft of the motor;

Two of the driven gears are respectively mounted to one ends of the two reels and are engaged with the driving gears.

According to a second aspect of the present invention, there is provided a refrigerator comprising:

a cabinet defining a plurality of air ducts therein;

Each of the above-described split air blowing devices is attached to the casing, and each of the air outlets of the branch air blowing device communicates with an air inlet of one of the air blowing ducts.

In the split air supply device and the refrigerator of the present invention, since the plurality of air outlets, the windshield and the two reels are included, the wind deflector can be controlled to shield the plurality of air outlets by the rotation of the two reels. The selection of the supply air duct and the corresponding cold air outlet and the adjustment of the air volume in each air supply duct can be adjusted according to the cooling demand of different storage rooms or the cooling capacity at different positions of a storage room. The cold air is reasonably distributed to enhance the fresh-keeping performance and operating efficiency of the refrigerator. Further, the present invention adopts a windshield and a winding mechanism having two reels to adjust the air supply volume of each air outlet, and has a special structure, a small volume, and a plurality of adjustment modes (ie, multiple air supply modes), and the adjustment efficiency is high and easy. Control and smooth operation, the adjustment effect is good. In particular, since the plurality of air outlets face at least two directions, it is convenient to supply air in at least two directions, which significantly improves the application range and the use scenario of the split air supply device.

Further, since the branch air supply device and the air supply device of the present invention have the air supply device, the air supply efficiency of the shunt air supply device is significantly improved, so that the shunt air supply device can independently enter the air, which is particularly suitable for Dual system or multi system refrigerator.

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 are described in detail below 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 shunt air supply device according to an embodiment of the present invention;

Figure 2 is a schematic cross-sectional view of a shunt air supply device in accordance with one embodiment of the present invention;

3 is a schematic exploded view of a partial structure of a shunt air supply device according to an embodiment of the present invention;

4 is a schematic structural view of a windshield in a shunt air supply device according to an embodiment of the present invention;

5 to 12 respectively show schematic structural views of the windshield at different positions in the shunt air blowing device according to an embodiment of the present invention;

Figure 13 is a schematic structural view of a refrigerator in accordance with one embodiment of the present invention.

detailed description

1 is a schematic structural view of a shunt air blowing device 20 according to an embodiment of the present invention. As shown in FIG. 1 and with reference to FIG. 2 to FIG. 4, an embodiment of the present invention provides a shunt air supply device 20 for a refrigerator. The shunt air supply device 20 may include a housing 100 and an adjustment device 200.

The housing 100 may have an air inlet and a plurality of air outlets to allow airflow into the housing 100 via the air inlet and out of the housing 100 from one or more of the plurality of air outlets. In particular, in the plurality of air outlets, the orientation of each air outlet is different from the orientation of at least one of the remaining air outlets, so that the plurality of air outlets have at least two air blowing directions. For example, the plurality of air outlets may include a first air outlet 121, a second air outlet 122, and a third air outlet 123. The orientation of the first air outlet 121 is different from the orientation of the second air outlet 122, and the orientation of the second air outlet 122 may be the same as or different from the orientation of the third air outlet 123. The first air outlet 121 may be opposite to the third air outlet 123. Oriented the same or different. Preferably, the plurality of air outlets may face in a plurality of directions, that is, the orientations of the plurality of air outlets are different.

The adjusting device 200 can be installed in or outside the housing 100, and includes a windshield 210 and a winding mechanism 220.

The windshield 210 is provided with at least one through hole 213 configured to move relative to the housing 100 to completely shield, partially shield or completely expose each air outlet at different movement positions, thereby adjusting a plurality of outlets. The outlet area of each outlet. That is, the windshield 210 moves along the plurality of air outlets on the housing 100, and the shielding of each air outlet is changed or not when moving from one position to another relative to the housing 100. Change, so that the air outlet area of each of the plurality of air outlets can be adjusted. That is, the adjusting device 200 can be configured to control the plurality of air outlets in a controlled manner to adjust the respective air outlet areas of the plurality of air outlets.

The winding mechanism 220 can include two reels 221. The two reels 221 are fixedly coupled to both ends of the windshield 210, respectively, and are used for winding the windshield 210. That is, each of the reels 221 is configured to fix one end of the windshield 210 of the shunting blower 20, and is used for winding of the windshield 210. Further, each of the reels 221 is rotatably mounted to the housing 100 to move the windshield 210 relative to the housing 100 when the two reels 221 are rotated. That is, the two reels 221 are configured to move the windshield 210 relative to the housing 100.

The windshield 210 of the shunting air supply device 20 in the embodiment of the present invention is moved by the winding mechanism 220, and the cold air flowing in from the air inlet can be controllably distributed to the plurality of air outlets, and control and each can be realized. The air supply ducts connected to the air outlets and the corresponding cold air outlets are opened and closed and/or the air volume in each air supply duct is adjusted to meet the cooling demand of the different storage compartments 20 of the refrigerator, or one The cooling demand at different locations of the storage compartment 20, or the cooling requirements of different storage spaces within the storage compartment 20. Further, the plurality of air outlets may have at least two air outlet directions, which can make the branch air supply device have a flexible installation position, and also facilitate the arrangement of the air flow path in the air-cooled refrigerator.

In some embodiments of the present invention, the peripheral wall 120 of the housing 100 may include at least two air outlet wall segments, each of which has a flat plate type, and each of the air outlet wall segments is provided with one or more tuyere. Further, the at least two air outlet wall segments may be sequentially connected by an arc connection segment or other types of connection segments. Alternatively, at least two air outlet wall segments may also be directly connected in sequence. The two planes where each two adjacent wind-out wall segments are located are intersected; the two outlet wall segments adjacent to the same outlet wall segment are on the same side of the same outlet wall segment. For example, the number of the outlet wall segments is three, and the angle between the two planes where each two adjacent outlet wall segments are located is 60° to 120°, preferably 90°; and each of the outlet wall segments Open an outlet. Specifically, the three outlet wall segments may be a first peripheral wall segment, a second peripheral wall segment, and a third peripheral wall segment. The air outlet on the wall section of the first week is the first air outlet 121, the air outlet on the second circumferential wall section is the second air outlet 122, and the air outlet on the third circumferential wall section is the third air outlet 123. The first peripheral wall section and the third peripheral wall section are respectively connected to both sides of the second peripheral wall section, and the first peripheral wall section and the third peripheral wall section are preferably arranged in parallel so as to project the branching air supply device 20 in the horizontal plane. A square or deformed square.

In some embodiments of the invention, the housing 100 further includes a base and a cover 130. The base has a base wall 110 and a peripheral wall 120 that extends from one edge of the base wall 110 toward one side of the base wall 110. The cover 130 is disposed at an end of the peripheral wall 120 away from the base wall 110. For example, the cover 130 can be snapped onto the peripheral wall 120. The air inlet can be disposed on the cover 130. In some alternative embodiments, the air inlets may also be disposed on the peripheral wall 120 or the base wall 110.

In some embodiments of the invention, the adjustment device 200 can be mounted within the housing 100 with two spools 221 disposed on the inside of the peripheral wall 120. The two reels 221 may be respectively disposed at inner sides of the first peripheral wall section and the third peripheral wall section away from the second peripheral wall section. The housing 100 may further include two reel accommodating chamber portions 140 extending from the base wall 110 in a direction parallel to the axis of the reel 221, each reel accommodating chamber portion 140 being coaxially disposed with a reel 221 to define a reel receiving chamber To limit the reel 221; and to guide the windshield 210 so that the windshield 210 is better wound on a reel 221.

Further, the adjusting device 200 further includes a windshield holding device disposed on the inner side of the peripheral wall 120, and configured to define a partial moving path of the windshield 210 to completely shield each air outlet at different moving positions. Partially obscured or fully exposed. Specifically, the windshield retaining device includes a plurality of rollers 222 disposed in the housing 100 at intervals in the circumferential direction of the housing 100, and a portion of the windshield 210 is between the peripheral wall 120 and the plurality of rollers 222 motion. Specifically, the number of the rollers 222 may be four, which are respectively disposed at inner ends of both ends of the first peripheral wall segment and inner ends of both ends of the third peripheral wall segment.

In some embodiments of the present invention, the shunting device further includes a sealing member 300 disposed on the inner side surface of the peripheral wall 120, and the sealing member 300 is provided with holes respectively aligned with the plurality of air outlets. A portion of the windshield 210 moves along the inside surface of the seal 300. The sealing member 300 is preferably felt, which can further ensure that the air volume is not lost during the working process; and the felt has a certain elasticity, which does not cause deformation of the air supply belt while ensuring the sealing, and does not cause the surface of the sealing member 300 to be rough. Mechanical damage such as scratches on the windshield 210 occurs, which affects the service life of the windshield 210. The seal 300 is preferentially disposed on the inner side surface of the plurality of outlet peripheral wall sections. In other embodiments of the invention, the seal 300 may be disposed on the inside of the peripheral wall 120 and a portion of the windshield 210 moves between the peripheral wall 120 and the seal 300. In still other embodiments of the present invention, the shunt blower may further include another seal, the other seal being disposed inside the seal 300, and the portion of the shroud 210 being sealed at the seal 300 and another Movement between pieces.

In some embodiments of the present invention, as shown in FIG. 4, the number of the through holes 213 in the windshield 210 may be plural, and the plurality of through holes 213 are sequentially disposed at intervals along the extending direction of the windshield 210. Wind sheet 210. The windshield 210 may include a main windshield 211 and two connecting portions 212. The plurality of through holes 213 are opened in the main windshield portion 211. The two connecting portions 212 are respectively disposed at both ends of the main windshield portion 211 and are respectively attached to the two reels 221. In order to facilitate the winding of the windshield 210, the main windshield portion 211 is a PET film or a spring steel sheet. Further, the entire windshield 210 may also be a PET film or a spring steel sheet. The distance between each of the through holes 213 and the edge of the adjacent main windshield portion 211 is 0.8 to 1.2 times the minimum distance between each two adjacent through holes 213 to fully utilize the windshield 210 and is guaranteed The strength of the windshield 210.

In some preferred embodiments of the invention, each of the through holes 213 is equal in size or slightly larger than the size of the air outlet. The plurality of through holes 213 are arranged in a plurality of groups such that the main windshield portion 211 has a plurality of through hole groups. Each through hole group has at least one through hole 213. There is a occlusion section between each adjacent two through hole groups. The at least one connecting portion 212 is also a blocking segment between the adjacent through hole groups. The lengths of the plurality of shielding segments are not equal, the number of air outlets for shielding is not equal, or the total air outlet area of the plurality of air outlets that are blocked is not equal. For example, the number of air outlets on the housing 100 is three. The plurality of through hole groups includes a first through hole group, a second through hole group, and a third through hole group. The first through hole group has one through hole 213; the second through hole group has two through holes 213; and the third through hole group has three through holes 213. The first through hole group is located between the second through hole group and the third through hole group. Further, the spacing between two adjacent through holes 213 of each through hole group may be configured such that two adjacent air outlets can be completely exposed at the same time, for example, equal to each adjacent two air outlets. The spacing between the inner surfaces of the peripheral walls 120; or, slightly less than the spacing between the adjacent two air outlets along the inner surface of the peripheral wall 120, at this time, each of the through holes 213 should be slightly larger than each of the air outlets.

Between the first through hole group and the third through hole group is a first occlusion segment; between the first through hole group and the second through hole group is a second occlusion segment; and the second through hole group is adjacent to the connection portion thereof The third occlusion segment. The length of the first shielding section is preferably such that it can completely shield one air outlet and the next adjacent connection area of the two sides of the air outlet. The length of the second shielding section is 1.8 times to 2.5 times of the length of the first shielding section, so that the distance between the first through hole group and the second through hole group can completely shield two adjacent air outlets and corresponding connections region. The minimum length of the third shielding segment is 2.8 times the length of the first shielding segment, so that the distance between the second through hole group and one end of the adjacent main windshield portion 211 can completely cover the three air outlets and corresponding connections. region. Preferably, the length of the third occlusion segment is 2.8 to 3.5 times the length of the first occlusion segment. The plurality of through-hole groups and the shielding section between the two, and the shielding section of the outer side can adjust the plurality of air outlets in cooperation with each other, so as to open only one air outlet, only two air outlets, and all the air outlets are turned on. Various adjustment modes. Adjustment modes such as partial shielding of an air outlet can also be realized.

In some alternative embodiments of the present invention, the main windshield portion 211 includes at least a plurality of equal length adjustment sections along its length direction; at least one adjustment section is provided with through holes 213, each of the adjustment sections being configured The plurality of air outlets of the branch air supply device 20 are integrally adjusted once. For example, there are three air outlets, each of which can cover three air outlets in length. The middle portion of one adjustment section may be provided with a through hole 213, and there are no through holes 213 on both sides. When adjusting, the middle through hole 213 may be aligned with the middle air outlet, and the two sides may completely shield the other two air outlets to realize the middle. The air outlet is in a conducting state. One end of the other adjustment section may be provided with a through hole 213, and the middle and the other end are not provided with a through hole 213 to realize the conduction of the air outlet at one end; likewise, the other end of the other adjustment section may be provided with a through hole 213, A through hole 213 is not provided at one end and the middle portion to achieve conduction of the air outlet at the other end. That is to say, each adjustment section can realize an adjustment function, and the plurality of adjustment sections can realize various adjustment modes such as conducting only one air outlet, only turning two air outlets, and conducting all air outlets. In order to achieve the same adjustment function, the length of the windshield 210 of this embodiment is greater than the length of the windshield 210 in the embodiment of the windshield having a plurality of through hole groups.

In some embodiments of the present invention, in order to better facilitate the winding of the windshield 210, a limit plate 223 is disposed at each end of each of the reels 221 to prevent the windshield 210 from being axially parallel to the reel 221. Shake. In order to better facilitate the fixing of the windshield 210, each reel 221 includes a rotating shaft and a pressing block. The rotating shaft has a windshield mounting section, and the peripheral wall surface of the windshield mounting section includes a planar area and a curved surface area connecting the two side edges of the planar area. The pressing block is mounted on the flat area, and the pressing block and the windshield mounting section sandwich one end of the windshield 210 therebetween, that is, a connecting portion 212 of the windshield 210 is sandwiched therebetween. The compact and the rotating shaft can form a column even if the spool is columnar. Specifically, each of the connecting portions 212 is provided with a plurality of positioning holes spaced apart in the width direction of the main windshield portion 211. The two ends of the pressure block are provided with a buckle, and the two buckles are provided with a plurality of latches; the flat area of the windshield installation section is provided with two card slots and a plurality of positioning holes; each of the buckles is engaged In a card slot, each of the posts is inserted through a positioning hole in a connecting portion 212 into a positioning hole on a flat area of the rotating shaft.

In some preferred embodiments of the invention, the adjustment device 200 further includes a motor 224 and a transmission. The transmission mechanism is configured to transmit rotational motion of the motor 224 to the two reels 221. The motor 224 is disposed radially outward of each spool 221, preferably between the two spools 221. The transmission mechanism includes a drive gear 225 and two driven gears 226. The drive gear 225 is mounted to the output shaft of the motor 224. Two driven gears 226 are respectively attached to one ends of the two reels 221 and are both meshed with the driving gear 225. The bi-directional rotation of the spool 221 is effected using a motor 224 and a transmission mechanism to move the windshield 210 to one side or the other, even if the windshield 210 is controllably moved in two opposite directions. In some alternative embodiments of the invention, the adjustment device 200 further includes a motor and belt drive mechanism. The motor directly or indirectly drives a reel 221 to rotate. The belt drive mechanism transmits the rotational motion of one reel 221 to the other reel 221. In still other alternative embodiments of the present invention, a drive mechanism, such as a motor, may be provided at each of the spools 221 to drive the spool 221 to move. When one motor is operating, the other motor does not work and can be reversed.

In this embodiment, the inventors have proposed the use of a transmission mechanism to weaken the sloshing effect of the output shaft of the motor 224 to make the indexing of the spool 221 accurate. The deceleration and torsion function of the transmission mechanism also eliminates the jamming phenomenon of the motor 224. Moreover, the special position of the motor 224 can reduce the overall thickness of the shunt air supply device 20, saving space, especially for use in a refrigerator. The gear ratio between the driven gear 226 and the drive gear 225 may range from 15/11 to 21/11, preferably 18/11. The angle at which one of the reels 221 continues to rotate may be less than or equal to a preset value when the motor 224 is rotated to a predetermined position. When the motor 224 is stopped to rotate to a predetermined position, the driving gear 225 on the output shaft of the motor 224 and the output shaft of the motor 224 may continue to rotate due to the inertia, and the angle at which the reel 221 continues to rotate is relatively small, which greatly improves the reel 221 The rotation accuracy further improves the movement accuracy of the windshield 210.

In some embodiments of the invention, the shunt air supply device 20 may also include a wind supply device 400. The air supply device 400 is configured to cause airflow to flow from the air inlet into the housing 100 and out of the housing 100 from one or more of the plurality of air outlets. Preferably, the air supply device 400 is a centrifugal impeller and is disposed in the casing 100. In some alternative embodiments of the present invention, the air blowing device 400 may be a separate fan, and the air outlet of the fan may communicate with an air inlet opened on the housing 100.

5 to 12 respectively show schematic structural views of the windshield 210 at different positions in the shunt air blowing device 20 according to an embodiment of the present invention. In this embodiment, the peripheral wall 120 can include three blast wall segments, a first peripheral wall segment, a second peripheral wall segment, and a third peripheral wall segment, respectively. The air outlet on the wall section of the first week is the first air outlet 121, the air outlet on the second circumferential wall section is the second air outlet 122, and the air outlet on the third circumferential wall section is the third air outlet 123. The plurality of through hole groups includes a first through hole group, a second through hole group, and a third through hole group. The first through hole group has one through hole 213; the second through hole group has two through holes 213; and the third through hole group has three through holes 213. The first through hole group is located between the second through hole group and the third through hole group. The arrangement direction of the first air outlet 121, the second air outlet 122, and the third air outlet 123 is opposite to the arrangement direction of the second through hole group, the first through hole group, and the third through hole group. A first shielding section is between the first through hole group and the third through hole group, and a second shielding section is between the first through hole group and the second through hole group, and the second through hole group and the adjacent connecting portion 212 thereof The third occlusion segment.

The windshield 210 moves in a direction in which the third air outlet 123 is directed toward the first air outlet 122. When the windshield 210 moves to the position shown in FIG. 5, the third through hole group can make the first air outlet 121, the second air outlet 122, and the third air outlet 123 both open. When the windshield 210 moves to the position shown in FIG. 6, the first shielding section can completely shield the third air outlet 123, and the third through hole group can completely expose the first air outlet 121 and the second air outlet 122. status. When the windshield 210 moves to the position shown in FIG. 7, the first shielding section can completely shield the second air outlet 122, and the third through hole group can make the first air outlet 121 completely exposed, the first through hole The group can cause the third air outlet 123 to be in a fully exposed state. When the windshield 210 moves to the position shown in FIG. 8, the first shielding section can completely shield the first air outlet 121, and the second shielding section can completely shield the third air outlet 123. The first through hole group can make the first The second air outlet 122 is in a fully exposed state.

When the windshield 210 moves to the position shown in FIG. 9, the second shielding section can completely shield the second air outlet 122 and the third air outlet 123, and the first through hole group makes the first air outlet 121 completely exposed. . When the windshield 210 moves to the position shown in FIG. 10, the second shielding section can completely shield the first air outlet 1211 and the second air outlet 122, and the second through hole group can make the third air outlet 123 completely exposed. status. When the windshield 210 moves to the position shown in FIG. 11, the second shielding section can completely shield the first air outlet 121, and the second through hole group can completely expose the second air outlet 122 and the third air outlet 123. status. When the windshield 210 moves to the position shown in FIG. 12, the third shielding section can completely shield the first air outlet 121, the second air outlet 122, and the third air outlet 123.

Of course, in some other embodiments of the present invention, the first shielding section may also shield a portion of the first air outlet 121 and a portion of the second air outlet 122, and the second shielding section may partially shield the third air outlet. At this time, the third through hole group may expose the remaining portion of the first air outlet 121, and the first through hole group may expose the remaining portion of the second air outlet 122 and the remaining portion of the third air outlet 123.

The embodiment of the invention further provides a refrigerator, which is preferably an air-cooled refrigerator. Further, as shown in FIG. 13, the refrigerator includes a case 50 and a shunt air supply device 20 in any one of the above embodiments disposed in the case 50. A cooling chamber, one or more storage compartments, and a plurality of air supply ducts may be defined within the cabinet 50. Each storage compartment can also be divided into a plurality of storage spaces by a shelf/shelf. The air inlet of the branch air supply device 20 communicates with the outlet of the cooling chamber, and each air outlet of the branch air supply device 20 communicates with an air inlet that communicates with a supply air duct, for example, each of the branch air supply devices 20 The tuyere is connected to an air inlet communicating with the air supply duct to control the airflow from the cooling chamber into the corresponding air supply duct in a controlled/distributable manner.

In some embodiments, as shown in Figure 13, the arrows in the figure briefly show the flow of airflow in the refrigerator. The plurality of air supply ducts are configured such that the airflow flowing out of the cooling chamber enters the plurality of storage compartments of the refrigerator, respectively, and the split air supply device 20 controls the airflow from the cooling chamber to be controlled/distributably into the corresponding air supply Inside the wind tunnel, then enter the corresponding storage room. For example, the air outlets of the split air supply device 20 may be three, such as the first air outlet 121, the second air outlet 122, and the third air outlet 123; the air supply duct may be three; multiple storage rooms A first storage compartment 51, a second storage compartment 52, and a third storage compartment 53 may be included. The first air outlet 121 communicates with the first storage compartment 51 via a blower duct, the second air outlet 122 communicates with the second storage compartment 52 via a blower duct, and the third air outlet 123 is sent via a single air outlet 123. The wind tunnel is in communication with the third storage compartment 53. When the first storage compartment 51 requires cold air, and the second storage compartment 52 and the third storage compartment 53 do not require cold air, the second air outlet 122 and the third of the split air supply device 20 can be provided. The air outlet 123 is in a completely shielded state, and the first air outlet 121 is in a fully exposed state. Specifically, the refrigerator can control the rotation of the reel 221 according to the temperature detected by the temperature sensor in the refrigerator to achieve corresponding control, so that the cold air can be reasonably distributed to the plurality of storage compartments, thereby enhancing the freshness preservation performance and operation of the refrigerator. effectiveness. In this embodiment, the third storage compartment 53 may be a freezing compartment; the first storage compartment 51 may be a greenhouse, disposed above the third storage compartment 53; the second storage compartment 52 may The refrigerating compartment is disposed above the first storage compartment 51.

In other embodiments, the plurality of supply air ducts may be configured to cause airflow out of the cooling chamber to enter the storage compartment from a plurality of locations on a compartment wall of a storage compartment of the refrigerator, respectively. For example, the air outlets of the split air supply device 20 may be three, such as the first air outlet 121, the second air outlet 122, and the third air outlet 123; the air supply duct may be three, such as the first air outlet. A first air passage that communicates with 121, a second air passage that communicates with the second air outlet 122, and a third air passage that communicates with the third air outlet 123. The second air passage may have two or four cold air outlets symmetrically disposed at an upper portion of the rear wall of the storage compartment. The first air duct is located at one side of the second air duct and has a cold air outlet disposed in the middle of the rear wall of the storage compartment. Further, the upper end of the first air duct has a bridge air duct to guide the cold air in the first air duct to the other side of the second air duct. The third air passage may be located on the other side of the second air passage, and has a cold air outlet disposed at a lower portion of the rear wall of the storage compartment. Further, the upper end of the third air duct has a bridge air duct to guide the cold air in the third air duct to the other side of the second air duct. Further, the two compartments can also be used to divide the storage compartment into three storage spaces, each of which is in communication with a storage space. The refrigerator in this embodiment can control the cold air to flow from the corresponding air supply duct to the position according to whether the cooling capacity at each position of the storage compartment of the refrigerator is sufficient, so that the cold air is reasonably distributed to the storage compartment. The location enhances the freshness and operational efficiency of the refrigerator. The branch air supply device can adjust the wind direction and the air volume of the air supply duct, and the air supply duct where the cold air is needed in the storage room of the refrigerator can be closed without cold air. Thereby controlling the constant temperature in the refrigerator, providing an optimal storage environment for the food in the refrigerator, reducing the nutrient loss of the food, and reducing the power consumption of the refrigerator and saving energy.

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 split air supply device for a refrigerator, comprising:

a housing having an air inlet thereon, and a plurality of air outlets are defined in a peripheral wall thereof, and an orientation of each of the air outlets is different from an orientation of at least one of the other air outlets; and

An adjusting device comprising a windshield, and two reels respectively fixedly connected to both ends of the windshield and for winding the windshield;

The windshield is provided with at least one through hole configured to move relative to the housing to completely shield, partially shield or completely expose each of the air outlets at different movement positions, thereby adjusting the position Describe the respective outlet areas of the plurality of air outlets;

Each of the spools is rotatably mounted to the housing, and the two spools are configured to move the windshield relative to the housing.
The shunt air blowing device according to claim 1, wherein

The peripheral wall includes at least two outlet circumferential wall segments, each of the outlet circumferential wall segments being of a flat plate type, and each of the outlet circumferential wall segments is provided with one or more of the air outlets.
The shunt air blowing device according to claim 2, wherein

Two planes in which each two adjacent air outlet wall segments are located are intersected;

Two of the outlet wall segments adjacent to the same outlet wall segment are on the same side of the same outlet wall segment.
The shunt air blowing device according to claim 3, wherein

The number of the peripheral wall segments of the outlet is three, and the angle between the two planes of each two adjacent outlet wall segments is 60° to 120°;

One of the air outlets is defined in each of the outlet wall segments.
The shunt air blowing device according to claim 1, wherein

Two of the reels are disposed on an inner side of the peripheral wall;

The adjusting device further includes a windshield retaining device disposed on an inner side of the peripheral wall and configured to define a partial moving path of the windshield to complete each of the air outlets at different moving positions Shaded, partially obscured or fully exposed.
The shunt air blowing device according to claim 5, wherein

The windshield retaining device includes a plurality of rollers disposed in the housing at intervals in a circumferential direction of the housing, and

A portion of the windshield moves between the peripheral wall and the plurality of rollers.
The shunt air supply device according to claim 1, further comprising:

a sealing member disposed on an inner side surface of the peripheral wall, and the sealing member is provided with a hole respectively aligned with the plurality of the air outlets;

A portion of the windshield moves along an inside surface of the seal.
The shunt air supply device according to claim 1, further comprising:

a supply device configured to cause airflow from the air inlet to the housing and out of the housing from one or more of the plurality of air outlets.
The shunt air supply device according to claim 8, wherein the housing further comprises:

a base having a base wall and the peripheral wall extending from an edge of the base wall toward a side of the base wall; and

a cover disposed at an end of the peripheral wall away from the base wall, the air inlet being opened on the cover;

The air supply device is a centrifugal impeller disposed in the housing such that an axis of rotation of the centrifugal impeller is parallel to an axial direction of the housing.
The shunt air blowing device according to claim 1, wherein

The adjustment device is mounted within the housing and further includes a motor and a transmission mechanism configured to transmit rotational motion of the motor to the two reels.
The shunt air supply device according to claim 10, wherein

The motor is disposed radially outward of each of the spools; and

The transmission mechanism includes:

a driving gear mounted to an output shaft of the motor;

Two of the driven gears are respectively mounted to one ends of the two reels and are engaged with the driving gears.
A refrigerator, comprising:

a cabinet defining a plurality of air ducts therein;

The branch air blowing device according to any one of claims 1 to 11, which is attached to the casing, and each of the air outlets of the branch air blowing device communicates with an air inlet of one of the air blowing ducts.