WO2019129066A1

WO2019129066A1 - Branch air supply device and refrigerator

Info

Publication number: WO2019129066A1
Application number: PCT/CN2018/123924
Authority: WO
Inventors: 费斌; 程学丽; 李登强
Original assignee: 青岛海尔股份有限公司
Priority date: 2017-12-29
Filing date: 2018-12-26
Publication date: 2019-07-04
Also published as: CN108302876A; CN108302876B

Abstract

Disclosed are a branch air supply device and a refrigerator. The branch air supply device (400) comprises: a housing (410) with a plurality of air supply outlets (411); a plurality of baffles (420), each baffle (420) rotatably mounted at one air supply outlet (411) with a first position and a second position; a plurality of transmission assemblies, each transmission assembly having a rotational member (430), a bevel gear (434), an engaging and disengaging mechanism (433) and a reset device (432), wherein one side of the rotational member (430) is a discontinuous bevel gear structure cooperating with the bevel gear (434), the bevel gear (434) is connected to the corresponding baffle (420) via the engaging and disengaging mechanism (433), the engaging and disengaging mechanism (433) is configured to not prevent the rotation of the bevel gear (434) and the rotational member (430) when the corresponding baffle (420) is stationary, and the reset device (432) is mounted on the baffle (420) and configured to urge the corresponding baffle (420) to return to the first position when the bevel gear (434) and the rotational member (430) are disengaged; and a driving device. By means of the invention, it is convenient to uniformly adjust a flow path and flow rate of cold air, and rationally distribute the cold air to enhance the fresh-keeping performance and operating efficiency of the refrigerator; the invention is also easy to control and convenient to adjust, and has a fast adjusting speed and a high adjusting accuracy.

Description

Shunt air supply device and refrigerator

Technical field

The invention relates to the field of refrigerator storage, in particular to a split air supply device and a refrigerator.

Background technique

At present, the air-cooled refrigerator generates cold air through a built-in evaporator, and the cold air is circulated through the air duct to the respective storage compartments of the refrigerator to achieve cooling. For air-cooled refrigerators, the freshness of food depends largely on whether the indoor air circulation in the storage room is reasonable. If the cold air flows randomly through the air passage, it is easy to cause too much or insufficient air flow into each storage room, so that the temperature distribution in the storage room is not balanced, and the operating efficiency of the refrigerator is also lowered. Therefore, it is necessary to accurately flow the distribution and flow control of the cold air entering the interior of each storage room. Similarly, in order to optimize the storage space, a single storage room is generally divided into a plurality of refinement storage space by a shelf device such as a rack or a drawer, and each storage space is required according to the amount of the stored items. The cooling capacity 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.

Summary of the invention

In view of the above problems, the present invention has been made in order to provide a refrigerator and a shunt air supply device for the refrigerator that overcome the above problems or at least partially solve the above problems, so as to facilitate uniform adjustment of the flow path and flow rate of the cold air. According to the cold demand of different storage rooms or the cold demand at different positions of a storage room, the cold air can be reasonably distributed to enhance the fresh-keeping performance and operating efficiency of the refrigerator; and the control is simple, the adjustment is convenient, and the adjustment speed is Fast, high adjustment accuracy.

In one aspect, the present invention provides a shunt air supply device for a refrigerator, comprising:

a housing having a peripheral wall portion, wherein the peripheral wall portion is provided with a plurality of air blowing openings;

a plurality of baffles, each of the baffles being rotatably mounted to one of the air supply openings for rotating to different positions to adjust an air outlet area of the corresponding air supply opening, and having a first position and a second position Position: one of the first position and the second position is to close the corresponding air blowing port, and the other is to open the corresponding air blowing port;

a plurality of transmission assemblies, each of the transmission assemblies having a rotating member, a bevel gear, a clutch mechanism, and a resetting device; one side of the rotating member is a discontinuous bevel gear structure that cooperates with the bevel gear; The clutch mechanism is coupled to a respective one of the baffles to rotate the respective baffle from the first position to the second position when engaged with the rotating member; and the clutch mechanism is configured to Corresponding to the second position after the baffle is rotated by the first position, and under the action of the engaging force of the rotating member and the bevel gear, the cone is not blocked when the corresponding baffle is stationary Rotation of the gear and the rotating member to maintain the respective baffle in the second position; the resetting device is mounted to a corresponding baffle configured to disengage the bevel gear from the rotating member Engaging, causing the respective baffle to return to the first position; and

A driving device having a driving source and a transmission mechanism configured to transmit a motion of the output of the driving source to the plurality of rotating members to cause each of the rotating members to be stationary or rotated.

Optionally, the reset device is a torsion spring.

Optionally, the transmission mechanism includes a first gear; each of the rotating members is provided with a plurality of teeth;

The first gear is directly or indirectly connected to the driving source and meshes with the teeth on each of the rotating members to drive a plurality of the rotating members to rotate.

Optionally, the driving source is a motor; the transmission mechanism further includes a second gear mounted on an output shaft of the motor; and the second gear meshes with the first gear.

Optionally, the housing further includes:

Damper bottom cover; and

a base mounted on one side of the damper bottom cover, and the first gear and the plurality of rotating members are mounted between the base and the damper bottom cover; the peripheral wall portion is disposed on the The side of the base faces away from the bottom cover of the damper.

Optionally, a wind supply device is further disposed in the housing, configured to cause airflow into the housing and out of the housing via one or more of the plurality of air outlets.

Optionally, the air supply means is a centrifugal impeller configured to cause airflow into the housing from an axial direction of the housing.

Optionally, the number of the air blowing ports is N, and the plurality of rotating members rotate synchronously;

Each of the discontinuous bevel gear structures includes at least 2 ^N -1 structural segments, the bevel gears being at each of the end points of each of the structural segments, causing the respective baffles to be in the first position or The second position, such that when the plurality of rotating members rotate the angle of the central angle corresponding to one of the structural segments, the plurality of air blowing openings have an air blowing state, thereby causing the plurality of air blowing ports There are a total of 2 ^N types of wind.

In another aspect, the present invention also provides a refrigerator comprising:

a box having a storage space therein;

a duct assembly mounted to the tank and having a plurality of cold air outlets; the plurality of cold air outlets being in communication with the storage space;

Any one of the above-mentioned shunt air blowing devices is disposed in the air duct assembly; each of the air blowing ports of the shunt air blowing device is connected to one or more of the cold air outlets, and each of the cold air outlets Connecting one of the air blowing openings to allow airflow into the casing of the branch air blowing device to flow to the storage space via one or more of the plurality of air blowing ports of the branch air blowing device .

The split air supply device and the refrigerator in the present invention can control the driving of a plurality of baffles by controlling a driving source to control the air outlet ducts or to select the air outlet ducts for each of the air outlet ducts. The amount of wind and air is adjusted so that the cold air can be reasonably distributed according to the cooling demand of different storage rooms or the cooling capacity at different positions of a storage room to enhance the fresh-keeping performance and operating efficiency of the refrigerator. Moreover, it is possible to achieve complete sealing of the air passage and prevent air leakage.

Further, since the splitter air supply device of the present invention utilizes the non-continuous bevel gear, the bevel gear, the clutch mechanism and the reset device, the baffle is turned over more smoothly, and the structure is simple and compact, and the air supply adjustment is simple, convenient, accurate, and noise. low.

Further, since the plurality of air supply openings of the shunt air supply device of the present invention are arranged in a circumferential or four-circle manner, a plurality of (for example, three) air supply ports can be circumferentially discharged, which can facilitate the split air supply device. The overall structural design can make the structure of the branch air supply device simple and compact, and the layout is reasonable; it is also convenient to install in the refrigerator, and is convenient for the reasonable arrangement of the air duct in the refrigerator. Moreover, in the shunt air blowing device of the present invention, the driving device is used to simultaneously rotate the plurality of rotating members, thereby realizing the rotation of the plurality of baffles, the number of components is small, and the transmission is convenient and accurate.

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. In particular, the centrifugal fan is used for air supply, and is particularly suitable for direct air outlet of a refrigerator cooling room.

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 shunt air supply device according to an embodiment of the present invention;

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

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

4 to 11 are schematic structural views respectively showing a plurality of air blowing states in the shunt air blowing device according to an embodiment of the present invention;

Figure 12 is a schematic structural view of a shunt air supply device mounted to a duct assembly according to an embodiment of the present invention;

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

Detailed ways

1 is a schematic structural view of a shunt air supply device according to an embodiment of the present invention. As shown in FIG. 1 and with reference to FIG. 2 to FIG. 11 , an embodiment of the present invention provides a shunt air supply device 400 for a refrigerator. The shunt air supply device 400 can include a housing 410, a plurality of baffles 420, a plurality of transmission components, and a drive device.

The casing 410 has a peripheral wall portion 412. The peripheral wall portion 412 is provided with a plurality of air blowing ports 411, and the plurality of air blowing ports 411 are sequentially spaced apart in the circumferential direction of the casing 410. The air supply port 411 may also be a ventilation channel having a certain length. Further, the housing 410 may further include a structure disposed at both ends of the peripheral wall portion 412. Each baffle 420 is rotatably mounted to a blower opening 411 to rotate to a different position to adjust the air outlet area of the corresponding air supply port 411. For example, the corresponding air supply port 411 can be opened or closed to achieve complete air outlet and zero. Out of the wind. Each of the corresponding baffles 420 may have a first position and a second position, one of the first position and the second position is to close the corresponding air supply opening 411, and the other is to open the corresponding air supply opening 411. Each of the drive assemblies can be mounted to the housing 410 and configured to rotate the respective baffle 420 between the first position and the second position and to maintain the baffle 420 in the first or second position. The drive device can be mounted to the housing 410 and can have a drive source 450 and a transmission mechanism configured to transmit a motion of the output of the drive source 450 to the plurality of rotary assemblies.

Further, each of the transmission assemblies may have a rotating member 430, a bevel gear 434, a clutch mechanism 433, and a reset device 432. One side of the rotating member 430 is a discontinuous bevel gear structure that cooperates with the bevel gear. The bevel gear is coupled to the respective baffle 420 via a clutch mechanism to rotate the corresponding baffle from the first position to the second position upon engagement with the rotating member. The clutch mechanism is configured to prevent the bevel gear and the rotating member from rotating when the corresponding baffle is stationary after the corresponding baffle is rotated from the first position by the second position, and under the action of the rotating member and the bevel gear meshing force The respective baffle 420 remains in the second position. The reset device is mounted to the baffle and configured to urge the respective baffle back to the first position when the bevel gear is disengaged from the rotating member. The transmission mechanism can cooperate with the plurality of rotating members 430 to cause each of the rotating members 430 to be stationary or rotated. That is to say, when the driving source 450 is moving in the output of the rotary motion or the linear motion, the plurality of rotating members 430 can be rotated or held still by the transmission mechanism.

The plurality of baffles 420 of the shunting air supply device 400 in the embodiment of the present invention can control the cold air to be distributed to the plurality of air blowing ports 411 to realize a plurality of air blowing states, and can control the communication with each air blowing port 411. The opening and closing of the wind tunnel and/or the adjustment of the air volume in each outlet duct to meet the cooling demand of different storage rooms, or the cooling capacity at different locations of a storage room Demand, or the cooling demand of different storage spaces in a storage room. In a specific operation, the driving source 450 drives the plurality of rotating members 430 to rotate through the transmission mechanism. When the rotating member 430 rotates, the corresponding baffle 420 is turned over by the bevel gear, the clutch mechanism and the resetting device to open or close or Adjust the corresponding air supply port 411. Further, since the transmission assembly can reverse or hold the corresponding baffle 420, the plurality of air supply ports 411 can be configured to perform various air outlet states, for example, one air supply port 411 is closed, and the other air supply port 411 is opened. The tuyere 411 is simultaneously closed and the like. Further, the plurality of air blowing ports 411 of the branch air blowing device 400 in the embodiment of the present invention are arranged in a circumferential or four-circle manner, so that a plurality of (for example, three) air blowing ports 411 can be arranged in the circumferential direction, which is convenient. The overall structural design of the split air supply device 400 can make the structure of the split air supply device 400 simple and compact, and has a reasonable layout; it is convenient to be installed in the refrigerator, and is convenient for the reasonable arrangement of the air duct in the refrigerator.

In some embodiments of the invention, the reset device is a torsion spring. The clutch mechanism can be a friction clutch mechanism. For example, when the baffle is in the first position, the rotating member starts to rotate, and the discontinuous bevel gear structure starts to mesh with the bevel gear, and the clutch mechanism causes the friction between the bevel gear and the rotating shaft of the baffle to be sufficient for the bevel gear to drive the baffle to rotate Until the flap rotates to the second position. When the baffle is rotated to the second position, the air outlet state of the plurality of air supply ports needs to be adjusted, and the baffle rotating the second position may be in the second position, and between the non-continuous bevel gear structure and the bevel gear The meshing force can be large enough to overcome the friction between the bevel gear and the shaft of the baffle to prevent rotation of the rotating member and to maintain the baffle in the second position. In some embodiments of the invention, the clutch mechanism may include a plurality of telescopic ball heads disposed on an end surface of the baffle shaft, and a plurality of grooves disposed on the end surface of the bevel gear. In still another embodiment of the present invention, the clutch mechanism includes a plurality of elastic snaps disposed on the rotating shaft of the baffle, and the elastic snap fit disposed in the rotating hole of the bevel gear and along the axis of the rotating hole Extending multiple card slots.

In some embodiments of the present invention, the plurality of air blowing ports 411 are equal or unequal in size; or, the partial air blowing ports 411 are equal in size. For example, the number of the air blowing ports 411 is three, and the two air blowing ports 411 are equal in size, and the other air blowing ports 411 are relatively large, and may be 1.5 times to 2.5 times smaller than the two smaller air blowing ports 411. Preferably, the sizes of the plurality of air blowing ports 411 are set to be equal.

In some further embodiments of the invention, the housing 410 further includes a damper bottom cover 413 and a base 414. The base 414 is mounted to one side of the damper bottom cover 413, and a plurality of rotating members 430 are mounted between the base 414 and the damper bottom cover 413. The peripheral wall portion 412 is disposed on a side of the base 414 that faces away from the damper bottom cover 413. When the baffle 420 opens the corresponding air supply opening 411, the side of the baffle 420 for the airflow to flow is preferably in the same plane as the side of the base 414 facing away from the damper bottom cover 413 to facilitate the flow of air. In some embodiments of the present invention, the housing 410 may further include a damper cover disposed at an end of the peripheral wall portion 412 away from the base 414; and the peripheral wall portion 412 or the damper cover is provided with an air inlet. Preferably, an air inlet is provided at the damper cover.

In some embodiments of the invention, the transmission mechanism can include a first gear 460; each of the rotating members 430 is provided with a plurality of teeth. The first gear 460 is directly or indirectly connected to the driving source 450, and the first gear 460 is an external gear that meshes with the teeth on the plurality of rotating members 430 to drive the plurality of rotating members 430 to rotate. Preferably, each of the rotating members 430 is provided with a ring of teeth on the other side of the rotating member 430 so as not to interfere with the cooperation of the non-continuous bevel gear structure and the bevel gear, that is, each rotating member 430 can be equivalent to one two. A gear with teeth on the side. Further, the first gear 460 is preferably a ring gear having an outer tooth and a discontinuous bevel gear structure, and is mounted between the base 414 and the damper bottom cover 413. The first gear 460 can also be in the shape of a disk.

Further, the driving source 450 is a motor; the transmission mechanism further includes a second gear mounted to the output shaft of the motor; and the second gear meshes with the first gear 460. The peripheral wall portion 412 is provided with a housing for housing the motor and the second gear. In some alternative embodiments of the present invention, the drive source 450 is a motor; the transmission mechanism further has a fourth gear mounted to the output shaft of the motor, and a fifth gear meshing with the fourth gear; the fifth gear and the first gear The 460 is coaxially set and rotates synchronously. In other alternative embodiments, the first gear 460 can be mounted directly to the output shaft of the motor. The gear set transmission can reduce the rotational motion of the motor to the rotating member 430 and the baffle 420, and the baffle 420 can be stably moved and the noise is low.

In some embodiments of the present invention, in order to improve the air supply efficiency, or to apply the split air supply device 400 directly to the air outlet of the refrigerator, the bypass air supply device 400 further includes a air supply device 470 disposed in the housing 410. Internally, it is configured to cause airflow into the housing 410 and out of the housing 410 via one or more of the plurality of air vents 411. Preferably, the air supply device 470 is a centrifugal impeller configured to cause airflow into the housing 410 from the axial direction of the housing 410. When the branch air supply device 400 is applied to the air outlet of the cooling chamber, the air inlet of the branch air supply device 400 can be directly disposed at the air outlet of the cooling chamber, and the axial air inlet can be conveniently arranged to generate radial air. Guide in a vertical plane.

In some embodiments of the invention, each baffle 420 is preferably provided with at least two states that open and close the respective air supply ports 411. Moreover, the plurality of rotating members 430 are equal in size and rotate in synchronization. The number of the air outlets 411 may be N, and N is a natural number greater than or equal to 2. In order to make the plurality of air blowing ports 411 have 2 ^N kinds of air blowing states, that is, the plurality of air blowing ports 411 have 2 ^N kinds of air blowing combined states, each of the non-continuous bevel gear structures includes at least 2 ^N -1 structural segments 431, bevel gears At each end point of each structural segment, the corresponding baffle 420 is placed in the first position or the second position such that each of the plurality of rotating members 430 simultaneously rotates the angle of the central angle corresponding to one structural segment, the plurality of air supply openings The 411 has an air blowing state, and thus the plurality of air blowing ports 411 have a total of 2 ^N air blowing states.

For example, as shown in FIG. 4 to FIG. 11 , the number of the air supply openings 411 may be three, and the first, second, and third ports are sequentially disposed along the circumferential direction of the housing 410, and the corresponding discontinuous cones are respectively arranged. The gear structure may be a first discontinuous bevel gear structure, a second discontinuous bevel gear structure and a third discontinuous bevel gear structure, and the corresponding baffle 420 may be the first baffle 421, the second baffle 422 and the third block The plate 423 has eight venting states, and each of the non-continuous bevel gear structures may have eight structural segments. The first position may be to open the corresponding air supply opening 411, and the second position may be to close the corresponding air supply opening 411.

As shown in FIG. 4, the first port, the second port, and the third port may both be in an open state, and the beginning of the first structural segment of each discontinuous bevel gear structure may cause the corresponding baffle 420 to be in an open state. That is, the beginning of the first structural section of each discontinuous bevel gear structure has no teeth, or is ready to start having teeth, or has just started without teeth.

As shown in FIG. 5, the first port, the second port, and the third port may be in a closed state, the first discontinuous bevel gear structure, the second discontinuous bevel gear structure, and the first structural segment of the third discontinuous bevel gear structure The end of the second structural segment (ie, the beginning of the second structural segment) can cause the corresponding baffle 420 to be in a closed state, and the first structural segment is a structural segment having a tapered tooth to rotate the baffle 420 during the rotation of the corresponding rotating member 430. To the closed state.

As shown in FIG. 6, the third port may be in an open state, and the first port and the second port may be in a closed state, the ends of the first discontinuous bevel gear structure and the second structural segment of the second discontinuous bevel gear structure (ie, The beginning of the third structural section can cause the corresponding baffle 420 to be in a closed state, and the second structural section of the first discontinuous bevel gear structure and the second discontinuous bevel gear structure is a structural section having a tapered tooth, and the clutch is now engaged The mechanism action does not interfere with the rotation of the respective rotating member 430 to maintain the corresponding flapper 420 in a closed state. The end of the second structural section of the third discontinuous bevel gear structure (ie, the beginning of the third structural section) may cause the respective baffle 420 to be in an open state, and at least the end region of the second structural section of the third discontinuous bevel gear structure There is no bevel tooth, so that the reset device drives the corresponding baffle to rotate to open the third port.

As shown in FIG. 7, the second port and the third port may be in an open state, and the first port may be in a closed state. The end of the third structural section of the first discontinuous bevel gear structure (ie, the beginning of the fourth structural section) may cause the corresponding baffle 420 to be in a closed state, and the third structural section of the first discontinuous bevel gear structure has a tapered tooth The structural section of the tooth, at which time the action of the clutch mechanism does not hinder the rotation of the corresponding rotating member 430, so that the corresponding flapper 420 remains closed. The end of the third structural section of the second discontinuous bevel gear structure (ie, the beginning of the fourth structural section) may cause the respective baffle 420 to be in an open state, and at least the end region of the third structural section of the second discontinuous bevel gear structure No taper teeth, so that the reset device drives the corresponding baffle to open the second port. The end of the third structural section of the third discontinuous bevel gear structure (ie, the beginning of the fourth structural section) may cause the corresponding baffle 420 to be in an open state, and the third structural section of the third discontinuous bevel gear structure has no beveled teeth The structural sections of the teeth are such that the respective baffles 420 remain open.

As shown in FIG. 8, the second port can be in an open state, and the first port and the third port can be in a closed state. The end of the fourth structural section of the first discontinuous bevel gear structure (ie, the beginning of the fifth structural section) may cause the corresponding baffle 420 to be in a closed state, and the fourth structural section of the first discontinuous bevel gear structure has a tapered tooth The structural section of the tooth, at which time the action of the clutch mechanism does not hinder the rotation of the corresponding rotating member 430, so that the corresponding flapper 420 remains closed. The end of the fourth structural section of the second discontinuous bevel gear structure (ie, the beginning of the fifth structural section) may cause the corresponding baffle 420 to be in an open state, and the fourth structural section of the second discontinuous bevel gear structure has no beveled teeth The structural sections of the teeth are such that the respective baffles 420 remain open. The end of the fourth structural section of the third discontinuous bevel gear structure (ie, the beginning of the fifth structural section) may cause the corresponding baffle 420 to be in a closed state, and at least the end region of the fourth structural section of the third discontinuous bevel gear structure The utility model has a tapered tooth so that the rotating member 430 drives the corresponding baffle to rotate to close the third port.

As shown in FIG. 9, the first port may be in an open state, and the second port and the third port may be in a closed state. The end of the fifth structural section of the first discontinuous bevel gear structure (ie, the beginning of the sixth structural section) may cause the corresponding baffle 420 to be in an open state, and the fifth structural section of the first discontinuous bevel gear structure has at least an end region The bevel tooth is such that the reset device drives the corresponding baffle to rotate to open the first port. The end of the fifth structural section of the second discontinuous bevel gear structure (ie, the beginning of the sixth structural section) may cause the respective baffle 420 to be in a closed state, and at least the end region of the fifth structural section of the second discontinuous bevel gear structure The utility model has a tapered tooth so that the rotating member 430 drives the corresponding baffle to rotate to close the second port. The end of the fifth structural section of the third discontinuous bevel gear structure (ie, the beginning of the sixth structural section) may cause the corresponding baffle 420 to be in a closed state, and the fifth structural section of the third discontinuous bevel gear structure has a tapered tooth The structural section of the tooth, at which time the action of the clutch mechanism does not hinder the rotation of the corresponding rotating member 430, so that the corresponding flapper 420 remains closed.

As shown in FIG. 10, the first port and the third port may be in an open state, and the second port may be in a closed state. The end of the sixth structural section of the first discontinuous bevel gear structure (ie, the beginning of the seventh structural section) may cause the corresponding baffle 420 to be in an open state, and the sixth structural section of the first discontinuous bevel gear structure has no beveled teeth The structural sections of the teeth are such that the respective baffles 420 remain open. The end of the sixth structural section of the second discontinuous bevel gear structure (ie, the beginning of the seventh structural section) may cause the corresponding baffle 420 to be in a closed state, and the sixth structural section of the second discontinuous bevel gear structure has a tapered tooth The structural section of the tooth, at which time the action of the clutch mechanism does not hinder the rotation of the corresponding rotating member 430, so that the corresponding flapper 420 remains closed. The end of the sixth structural section of the third discontinuous bevel gear structure (ie, the beginning of the seventh structural section) may cause the respective baffle 420 to be in an open state, and at least the end region of the sixth structural section of the third discontinuous bevel gear structure There is no bevel tooth, so that the reset device drives the corresponding baffle to rotate to open the third port.

As shown in FIG. 11, the first port and the second port may be in an open state, and the third port may be in a closed state. The end of the seventh structural section of the first discontinuous bevel gear structure may cause the corresponding baffle 420 to be in an open state, and the seventh structural section of the first discontinuous bevel gear structure is a structural section without a bevel tooth to make the corresponding block Plate 420 remains open. The end of the seventh structural section of the second discontinuous bevel gear structure may cause the corresponding baffle 420 to be in an open state, and at least the end region of the seventh structural section of the second discontinuous bevel gear structure is free of tapered teeth to cause the resetting device Drive the corresponding baffle to open the second port. The end of the seventh structural section of the third discontinuous bevel gear structure may cause the corresponding baffle 420 to be in a closed state, and at least the end region of the seventh structural section of the third discontinuous bevel gear structure has a tapered tooth to enable the rotating part The 430 drives the corresponding baffle to rotate to close the third port.

In some embodiments of the invention, in order to facilitate rotation of the rotating member 430, each of the non-continuous bevel gear structures may include a second ^N -shaped structural segment. When the air supply openings are three, the first discontinuous bevel gear structure, the second non-continuous bevel gear structure, and the third non-continuous bevel gear structure in the above embodiments further include an eighth structural segment. The beginning of the eighth structural segment is the end of the seventh structural segment, and the end of the eighth structural segment is the beginning of the first structural segment. The eighth discontinuous bevel gear structure and the eighth structural segment of the second discontinuous bevel gear structure are structural segments without bevel teeth. At least the end region of the eighth structural section of the third discontinuous bevel gear structure has no bevel teeth, so that the reset device drives the corresponding baffle to rotate to open the third port.

In some other embodiments of the present invention, the first non-continuous bevel gear structure, the second non-continuous bevel gear structure, and the third non-continuous bevel gear structure may also adopt structural segments in other combined states, and multiple air blowing ports can be realized. 2 ^N kinds of wind out state of 411.

The embodiment of the present invention further provides a refrigerator 1 having a cabinet 100 having a storage space 100a, the storage space may include one or more storage compartments, and each storage compartment may also be placed The board/shelf is divided into a plurality of small storage spaces. Further, as shown in FIGS. 12 and 13, the refrigerator is also provided with a duct assembly 200 and a shunt air blowing device 400 according to any of the above embodiments provided in the duct assembly 200. The air duct assembly 200 is mounted to the cabinet and has a plurality of cold air outlets 202; the plurality of cold air outlets are in communication with the storage space. Each of the air blowing ports 411 of the branch air blowing device 400 communicates with one or more cold air outlets, and each of the cold air outlets communicates with one air blowing port 411 to allow the airflow into the casing 410 of the branching air blowing device 400 to be branched. One or more of the plurality of air blowing ports 411 of the air blowing device 400 flow to the storage space.

In some specific embodiments of the invention, the tank also has a cooling chamber. The duct assembly 200 can have a mounting cavity and a plurality of cold air outlets, each of which communicates with one of the storage compartments directly or via other conduits. The duct assembly 200 is disposed on the front side of the cooling chamber, and the mounting chamber faces the air outlet of the cooling chamber. The branch air supply device 400 is installed in the installation cavity, and the air inlet of the branch air supply device 400 is aligned with the air outlet of the cooling chamber. Each of the air supply openings 411 is connected to a cold air outlet to adjust the air supply to the plurality of storage compartments. Specifically, the case may include a refrigerating compartment, a left freezing compartment and a right freezing compartment located at a lower side of the refrigerating compartment. The air supply port 411 of the branch air supply device 400 has three air outlets on the upper portion of the casing 410, a left air outlet on the left side of the casing 410, and a right air outlet on the right side of the casing 410. The upper air outlet can be connected to the cold room, the left air outlet is connected to the left freezer, and the right air outlet is connected to the right freezer. In some alternative embodiments of the invention, the shunt blower 400 can also deliver air to a plurality of locations in a storage compartment.

In some further embodiments of the invention, some or all of the cold air outlets of the duct assembly 200 may be vented to a plurality of locations of a storage compartment via the duct assembly. For example, the upper air outlet can supply air to the cold room through the air duct assembly.

An air inlet duct and a plurality of air outlet ducts may be defined in the duct assembly, and each air duct has one or more cold air outlets. The air duct assembly can be provided with a four-way split air supply device. The in-line split air supply device may include a plurality of air supply openings arranged in a row, and a baffle is also installed at each air supply opening to rotate to different positions to adjust the air outlet area of the corresponding air supply opening. The in-line split air supply device is connected to the intake air duct, and the plurality of air supply ports of the in-line split air supply device are respectively connected with the plurality of air outlet air passages to control the air flow from the air inlet air duct Ground/distributable into the corresponding air duct and then into the storage space. The plurality of outlet ducts may be configured to cause airflow exiting the duct assembly to enter the compartment from a plurality of locations on a compartment wall of a storage compartment (e.g., a refrigerating compartment) of the refrigerator, respectively. For example, the air outlet of the in-line split air supply device may be three, such as the first port, the second port, and the third port; the air outlet duct may be three, such as the first wind connected to the first port. a second air passage that communicates with the second port and a third air passage that communicates with the third port. The first air passage may have two or four cold air outlets symmetrically disposed at an upper portion of the rear wall of the refrigerating chamber. The first air passage may have a cold air outlet disposed at a lower portion of the rear wall of the refrigerating chamber. The second air duct may be located between the first air duct and the second air duct, and has one or two cold air outlets disposed in the middle of the rear wall of the refrigerating chamber. Further, the two compartments can also be used to divide the refrigerating compartment into three small storage spaces, each of which is in communication with a small storage space.

The split air supply device 400 and/or the in-line split air supply device in the refrigerator of the embodiment of the invention can realize the adjustment of the air outlet air passage and the air volume, and the cold air outlet where the cold air is needed in the refrigerator. It does not need cold air to close, thus controlling the constant temperature in the refrigerator, providing the best 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 a peripheral wall portion, wherein the peripheral wall portion is provided with a plurality of air blowing openings;

a plurality of baffles, each of the baffles being rotatably mounted to one of the air supply openings for rotating to different positions to adjust an air outlet area of the corresponding air supply opening, and having a first position and a second position Position: one of the first position and the second position is to close the corresponding air blowing port, and the other is to open the corresponding air blowing port;

a plurality of transmission assemblies, each of the transmission assemblies having a rotating member, a bevel gear, a clutch mechanism, and a resetting device; one side of the rotating member is a discontinuous bevel gear structure that cooperates with the bevel gear; The clutch mechanism is coupled to a respective one of the baffles to rotate the respective baffle from the first position to the second position when engaged with the rotating member; and the clutch mechanism is configured to Corresponding to the second position after the baffle is rotated by the first position, and under the action of the engaging force of the rotating member and the bevel gear, the cone is not blocked when the corresponding baffle is stationary Rotation of the gear and the rotating member to maintain the respective baffle in the second position; the resetting device is mounted to a corresponding baffle configured to disengage the bevel gear from the rotating member Engaging, causing the respective baffle to return to the first position; and

A driving device having a driving source and a transmission mechanism configured to transmit a motion of the output of the driving source to the plurality of rotating members to cause each of the rotating members to be stationary or rotated.
The shunt air blowing device according to claim 1, wherein

The reset device is a torsion spring.
The shunt air blowing device according to claim 1, wherein

The transmission mechanism includes a first gear; each of the rotating members is provided with a plurality of teeth;

The first gear is directly or indirectly connected to the driving source and meshes with the teeth on each of the rotating members to drive a plurality of the rotating members to rotate.
The shunt air blowing device according to claim 3, wherein

The drive source is a motor; the transmission mechanism further includes a second gear mounted to an output shaft of the motor; and the second gear meshes with the first gear.
The shunt air supply device according to claim 3, wherein the housing further comprises:

Damper bottom cover; and

a base mounted on one side of the damper bottom cover, and the first gear and the plurality of rotating members are mounted between the base and the damper bottom cover; the peripheral wall portion is disposed on the The side of the base faces away from the bottom cover of the damper.
The shunt air supply device according to claim 1, further comprising:

An air supply device is disposed within the housing and configured to cause airflow into the housing and out of the housing via one or more of the plurality of air delivery ports.
The shunt air blowing device according to claim 6, wherein

The air supply device is a centrifugal impeller configured to cause airflow into the housing from an axial direction of the housing.
The shunt air blowing device according to claim 1, wherein

The number of the air blowing ports is N, and a plurality of the rotating members rotate synchronously;

Each of the discontinuous bevel gear structures includes at least 2 N -1 structural segments, the bevel gears being at each of the end points of each of the structural segments, causing the respective baffles to be in the first position or The second position, such that when the plurality of rotating members rotate the angle of the central angle corresponding to one of the structural segments, the plurality of air blowing openings have an air blowing state, thereby causing the plurality of air blowing ports There are a total of 2 N types of wind.
A refrigerator characterized by comprising:

a box having a storage space therein;

a duct assembly mounted to the tank and having a plurality of cold air outlets; the plurality of cold air outlets being in communication with the storage space;

The shunt air blowing device according to any one of claims 1 to 8, which is disposed in the air duct assembly; each of the air blowing ports of the shunt air blowing device is connected to one or more of the cold air outlets And each of the cold air outlets communicates with one of the air blowing openings such that airflow into the housing of the shunt air blowing device passes through one or more of the plurality of air blowing ports of the shunt air blowing device Flow to the storage space.