WO2019129071A1

WO2019129071A1 - Branch air supply device and refrigerator

Info

Publication number: WO2019129071A1
Application number: PCT/CN2018/123930
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: CN108302874B; CN108302874A

Abstract

Disclosed are a branch air supply device and a refrigerator, wherein the branch air supply device (400) comprises: a housing (400') with a plurality of air supply outlets (411); a plurality of baffles (420), each baffle mounted at one air supply outlet (411); a plurality of transmission assemblies, each transmission assembly having a second rotational member (430) and a second transmission mechanism, and a first transmission mechanism transmitting the rotational motion of the corresponding second rotational member (430) to the baffles (420); a driving device, having a driving source (450) and the first transmission mechanism, the first transmission mechanism transmitting one motion output from the driving source (450) to a plurality of second rotational members (430), and the first transmission mechanism having a first rotational member (460); and a gear sensing device (480), configured to detect the position of the first rotational member (460) when same stops rotating.

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 plurality of air supply openings;

a plurality of baffles, each of the baffles being rotatably mounted to one of the air supply openings for rotating to different rotational positions to adjust an air outlet area of the corresponding air supply opening;

a plurality of transmission assemblies, each of the transmission assemblies being coupled to a respective one of the baffles;

a drive device having a drive source and a first transmission mechanism, the first transmission mechanism configured to transmit a motion of the output of the drive source to a plurality of the transmission assemblies such that each of the transmission assemblies drives the corresponding The baffle is stationary or rotating; and the first transmission mechanism has a first rotating member; and

The gear position sensing device is configured to detect a position when the first rotating member is stopped to determine an air blowing state of each of the air blowing ports according to a position at which the first rotating member stops.

Further, the gear position sensing device comprises:

a switch assembly having a plurality of switches and a plurality of levers, each of the levers configured to open or close a respective one of the switches;

a plurality of bosses or gear adjusting rings having a plurality of bosses disposed on the first rotating member to rotate with the first rotating member to move each of the levers to the boss Opening/closing the corresponding switch; and moving each of the levers to a recess outside each of the bosses, the lever closing/opening the corresponding switch;

Each of the air blowing openings has at least two air outlet states, an opening and a closing, and the plurality of the air baffles are configured such that the plurality of air blowing ports have a preset number of combined air outlet states;

Each of the switches has two control states of opening and closing, and the plurality of the bosses and the plurality of the levers are configured such that the plurality of switches have at least the preset number of control combined states, such that each The control combination state reflects a state of the combined wind output.

Further, each of the transmission assemblies has a second rotating member and a second transmission mechanism; each of the second transmission mechanisms is configured to transmit a rotational motion of the corresponding second rotating member to one of the baffles to Causing or rotating the baffle; and

a cam chute is formed on one side surface of each of the second rotating members;

Each of the second transmission mechanisms includes:

a first gear, the first gear is coupled to the corresponding baffle;

a transmission having an insertion portion inserted into the corresponding cam chute to be stationary or moved in a radial direction of the corresponding second rotating member when the respective second rotating member rotates; and the transmission The apparatus also has first teeth that mesh with the respective first gears to drive rotation of the respective baffles as they move in a radial direction of the respective second rotating members.

Further, the number of the air blowing ports is N, the preset number is 2 ^N , and the plurality of the second rotating members rotate synchronously;

Each of the cam chutes includes at least 2 ^N -1 chute segments, and the insertion portion is at each end point of each of the chute segments, causing the respective baffles to close corresponding to the air supply ports or completely Opening the corresponding air blowing port, so that when the plurality of second rotating members rotate the angle of the central angle corresponding to one of the sliding groove segments, the plurality of air blowing ports have an air combination state, thereby a plurality of the air blowing ports have a total of 2 ^N air combination states;

When each of the second rotating members rotates an angle of a central angle corresponding to one of the sliding groove segments, the first rotating member rotates by a corresponding preset angle, and the plurality of the protruding portions and the plurality of the levers are configured to And causing a plurality of the switches to have a control combination state after the first rotating member rotates the corresponding preset angle, so that the plurality of the switches have a total of 2 ^N control combined states.

Further, the number of the air blowing ports is three; the number of the switch and the lever are three;

a plurality of the bosses include three first bosses and a second boss sequentially spaced apart in a circumferential direction of the first rotating member; between each two adjacent first bosses a central angle corresponding to the arc is one of the preset angles; a central angle corresponding to an arc between the first boss and the second boss adjacent to the second boss is two An angle is formed; an angle between each two adjacent said levers in a reference plane perpendicular to the axis of the first rotating member is one of said predetermined angles.

Further, the first rotating member is a second gear; each of the second rotating members is provided with a plurality of second teeth;

The second gear is directly or indirectly connected to the driving source, and the second gear is an external gear, an internal ring gear or an external ring gear, and the second on each of the second rotating members The teeth are meshed to drive a plurality of the second rotating members to rotate.

Further, each of the transmission devices includes a rack, the rack has the first tooth, and one end of the rack is provided with the insertion portion; or

Each of the transmissions includes:

a sliding strip, one end of the sliding strip is provided with the first tooth, and a side of the sliding strip facing the second rotating member has a groove;

a slider mounted to the groove, and the slider has the insertion portion; and

An elastic member is disposed between the slider and a sidewall of the groove that is perpendicular to a length direction of the slider.

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

The second gear is an inner ring gear or an outer ring gear, a plurality of the bosses are disposed in the ring of the second gear, and the switch assembly is mounted on the casing and in the second gear Inside the ring.

Further, the housing further includes:

Damper bottom cover;

a base mounted on one side of the damper bottom cover, and the first rotating member and the plurality of second rotating members are mounted between the base and the damper bottom cover;

a peripheral wall portion, the peripheral wall portion is disposed on a side of the base facing away from the damper bottom cover, and the peripheral wall portion is provided with a plurality of the air blowing ports, and the plurality of the air blowing ports are along the shell The circumferential direction of the body is sequentially spaced; and

a damper cover, the damper cover is disposed at an end of the peripheral wall portion away from the base; and the peripheral wall portion or the damper cover is provided with an air inlet;

The shunting device further includes a wind supply device disposed in the casing, configured to cause airflow into the casing and out of the casing via one or more of the plurality of air blowing ports;

The air supply device is a centrifugal impeller.

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 split air supply device of the present invention has the first rotating member and the gear position sensing device, the air outlet state of each air supply port, such as the opening and closing state, can be conveniently and quickly reflected, thereby facilitating the split air supply. The control of the device makes the control simple and the control more accurate. The first rotating member is simultaneously used to drive the rotation of the plurality of second rotating members, and the components can be fully utilized, and the structure is simple and compact.

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 split air supply device of the present invention, the driving device is used to simultaneously drive the plurality of second rotating members to rotate, thereby realizing the rotation of the plurality of baffles, the number of components is small, and the transmission is convenient and accurate.

Further, since each of the transmission devices of the shunting device of the present invention has a sliding bar, a slider and an elastic member, the elastic member can adjust the position of the slider so that the slider is always in a stable state, thereby causing the sliding bar to The transmission between the first gears is more stable, the baffle flip is more stable, the adjustment is accurate, and the noise is low.

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 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 2a is a schematic exploded view of a shunt air supply device in accordance with one embodiment of the present invention;

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

3a and 3b are schematic views of a transmission device according to an embodiment of the present invention;

4 is a schematic structural view of a first rotating member in a shunt air blowing device according to an embodiment of the present invention;

Figure 5 is a schematic structural view of a switch assembly in a shunt air supply device according to an embodiment of the present invention;

Figure 6 is a schematic partial structural view of a shunt air supply device according to an embodiment of the present invention, wherein a baffle is in a state of opening a corresponding air supply port;

Figure 7 is a schematic partial structural view of a shunt air supply device according to an embodiment of the present invention, wherein a baffle is in a state of closing the corresponding air supply port;

8 to 15 are schematic structural views respectively showing a plurality of combinations of air outlets in a branch air supply device according to an embodiment of the present invention;

Figure 16 is a schematic structural view of a refrigerator in accordance with one embodiment of the present invention;

[Correct according to Rule 91 28.02.2019]
Figure 17 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 18 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. 2a to FIG. 15, an embodiment of the present invention provides a shunt air supply device 400 for a refrigerator. The shunt blower 400 can include a housing 400', a plurality of baffles 420, a plurality of drive assemblies, and a drive.

The casing 400' 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 400'. The air supply port 411 may also be a ventilation channel having a certain length. Further, the housing 400' 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 rotational position to adjust an air outlet area of the corresponding air supply opening 411. For example, the corresponding air supply opening 411 can be opened or closed to achieve complete air outlet and Zero out of the wind. Each of the transmission assemblies can be mounted to the housing 400' and coupled to a respective one of the baffles 420. The driving device can be mounted to the housing 400' and can have a driving source 450 and a first transmission mechanism configured to transmit a motion of the output of the driving source 450 to the plurality of transmission components to drive each of the transmission components The baffle is stationary or rotating accordingly.

Further, each of the transmission assemblies can have a second rotating member 430 and a second transmission. The second rotating member 430 may be in the shape of a turntable or an annular disk. Each of the second transmission mechanisms is configured to transmit the rotational motion of the respective second rotating member 430 to a baffle 420 to cause the baffle 420 to rest or rotate. That is to say, during the rotation of the second rotating member 430, the second transmission mechanism can drive the baffle 420 to rotate, and the baffle 420 can be kept still. In some alternative embodiments, the transmission assembly can also employ other structures or devices.

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 combined states, and can control the communication with each air blowing port 411. The opening and closing of the air duct and/or the regulation of the air volume in each air duct to meet the cooling demand of different storage rooms, or the cold at different positions of a storage room Quantity 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 second rotating members 430 to rotate by the first transmission mechanism, and each of the second rotating members 430 drives the corresponding baffle 420 to be turned over by the second transmission mechanism when rotating, to open or close or Adjust the corresponding air supply port 411. Further, since the second transmission mechanism can reverse or hold the baffle 420, the plurality of air supply ports 411 can be combined to achieve a plurality of air outlet combinations, for example, one air supply port 411 is closed and the other air supply port 411 is open. The air supply ports 411 are simultaneously closed and the combined air outlet state. 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 shunt air supply device 400 can make the structure of the shunt air supply device 400 simple and compact, and has a reasonable layout; it is also convenient to be installed in the refrigerator, and is convenient for reasonable arrangement of the air duct in the refrigerator.

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, housing 400' further includes a damper bottom cover 413, a base 414, and a damper cover 415. The base 414 is mounted to one side of the damper bottom cover 413, and a plurality of second 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 facing away from the damper bottom cover 413; specifically, the peripheral wall portion 412 may include a peripheral wall extending from the base 414 and extending from the peripheral wall in a radial direction of the housing 400'. Air supply port 411 wall. The wall of the air supply opening 411 adjacent to the base 414 may have a notch for mounting the baffle 420. 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. The damper cover 415 is disposed at one end of the peripheral wall portion 412 away from the base 414; and the peripheral wall portion 412 or the damper cover 415 is provided with an air inlet. Preferably, an air inlet is provided at the damper top cover 415. In some alternative embodiments of the invention, the housing 400' may further include a base 414 and a damper cover 415, excluding the damper bottom cover 413. A plurality of second rotating members 430 are mounted to the inner surface of the base 414.

In some embodiments of the present invention, a cam chute 431 is formed on one side surface of each of the second rotating members 430. For example, a cam chute is formed on a side of each of the second rotating members 430 facing away from the base 414. Each of the second transmission mechanisms includes a first gear 441 and a transmission 442. The first gear 441 is coupled to the corresponding baffle 420 and may be located in a receiving cavity provided on the housing 400' on one side of the corresponding air supply opening 411. The transmission device 442 has an insertion portion 444 inserted into the corresponding cam chute 431 to be stationary or moved in the radial direction of the corresponding second rotating member 430 when the corresponding second rotating member 430 is rotated; and the transmission device 442 also has a corresponding first The first tooth 447 of the gear 441 is engaged to drive the corresponding baffle 420 to rotate when moving in the radial direction of the corresponding second rotating member 430. Each of the second rotating members 430 and the corresponding first gears 441 are located on the same side of the corresponding transmission device 442, and the space inside the casing 400' can be fully utilized to make the branching air supply device 400 compact.

In some preferred embodiments of the invention, referring to Fig. 3b, each of the transmissions 442 includes a slider 442', a slider 443, and a resilient member 445. One end of the sliding bar is provided with a first tooth 447, and a side of the sliding bar facing the corresponding second rotating member 430 has a groove 446. The slider is mounted to the recess and the slider has an insertion portion 444. The elastic member is disposed between the slider and a side wall of the recess that is perpendicular to the longitudinal direction of the slider. When the elastic member is a compression spring, it may be at an end of the slider away from the first gear 441. When the elastic member is a tension spring, it may be at an end of the slider close to the first gear 441. In this way, the teeth on the first gear 441 and the teeth on the sliding bar can be closely matched, and the tooth gap is not provided, so that the baffle 420 and the like are smoothly rotated. In some alternative embodiments of the invention, referring to Fig. 3a, the transmission 442 can be a rack 449, and one end of the rack away from the baffle 420 can be provided with an insertion portion 444, the insertion portion being a projection. In some embodiments of the invention, the first gear 441 is a full gear or a non-full gear.

In some embodiments of the invention, the first transmission mechanism includes a second gear, and the second gear may be an external gear, an external ring gear or an internal ring gear, and is mounted between the base 414 and the damper bottom cover 413. A plurality of second teeth are disposed on each of the second rotating members 430. The second gear is directly or indirectly connected to the driving source 450 and meshes with the second teeth on the plurality of second rotating members 430 to drive the plurality of second rotating members 430 to rotate. Preferably, each of the second rotating members 430 is provided with a ring of teeth, that is, each of the second rotating members 430 can be equivalent to one gear. Further, the driving source 450 is a motor; the first transmission mechanism further includes a third gear 451 mounted to an output shaft of the motor; and the third gear meshes with the second gear. The peripheral wall portion 412 is provided with a housing for housing the motor and the third gear. In some alternative embodiments of the present invention, the drive source 450 is a motor; the first 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 The two gears are coaxially arranged and rotate in synchronization. In other alternative embodiments, the second gear 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 second 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 on the housing 400. 'Inside, configured to cause airflow into the housing 400' and out of the housing 400' via one or more of the plurality of air vents 411. Preferably, the air supply means 470 is a centrifugal impeller configured to cause airflow into the housing 400' from the axial direction of the housing 400'. When the branch air supply device 400 is applied to the air outlet of the cooling chamber, the axial air inlet radial wind can be conveniently realized, and the air is guided in a vertical plane.

In particular, in some embodiments of the present invention, in order to accurately reflect the air blowing state of each air blowing port 411 and the air blowing combined state of the plurality of air blowing ports 411, the branch air blowing device 400 further includes a gear position sensing device. 480. The first transmission mechanism has a first rotating member 460, and the gear position sensing device 480 is configured to detect a position when the first rotating member 460 is stopped to determine an air blowing state of each of the air blowing ports 411 according to a position when the first rotating member 460 is stopped. .

In order to make the structure of the branch air supply device 400 more compact, the structure is simpler and the error is small, the first rotating member 460 is preferably the second gear. In some alternative embodiments of the invention, the first rotating member 460 can also be a dedicated gear that meshes with the second gear described above for use in the detection of the gear sensing device 480.

In some embodiments of the present invention, as shown in Figures 4 and 5, the gear sensing device 480 can include a switch assembly 481 and a plurality of bosses 482; or the gear sensing device 480 can include a switch assembly 481 and having multiple Gear adjustment ring 482' of boss 482. The switch assembly 481 has a plurality of switches 483 and a plurality of levers 484, each of which is configured to open or close a respective switch 483. A plurality of bosses 482 or gear adjusting rings having a plurality of bosses 482 are disposed on the first rotating member 460 to rotate with the first rotating member 460 to move each lever 484 onto the boss 482. 484 opens/closes the corresponding switch 483; and when each lever 484 is moved to a recess outside each boss 482, the lever 484 closes/opens the corresponding switch 483. The second gear is preferably an inner ring gear or an outer ring gear. The plurality of bosses 482 are disposed in the ring of the second gear. The switch assembly 481 is mounted to the housing 400' and is within the ring of the second gear. In some embodiments of the invention, the second gear may also be an external gear, a plurality of bosses 482 may be mounted at the outer edge of the outer gear, and the switch assembly 481 may be mounted to the outer side of the outer gear.

In this embodiment of the invention, each of the air blowing ports 411 has at least two air blowing states of opening and closing, and the plurality of air baffles 420 are configured such that the plurality of air blowing ports 411 have a preset number of combined air blowing states. Each switch 483 has two control states, open and closed, and the plurality of bosses 482 and the plurality of levers 484 are configured such that the plurality of switches 483 have at least a preset number of control combined states such that each control combination state reacts to one A combination of wind and wind. Further, the motor gear position sensing device 480 can externally connect a plurality of lamps of different colors. When the baffle 420 of the corresponding air supply port 411 is opened, the corresponding lever 484 activates the switch 483, and the corresponding lamp is illuminated.

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 second 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 combined states, that is, the plurality of air blowing ports 411 have 2 ^N kinds of air blowing combined states, that is, the preset number is 2 ^N . Each of the cam chutes 431 includes at least 2 ^N -1 chute segments 431a. When the insertion portion is at each end of each chute segment, the corresponding baffle 420 closes the corresponding air supply port 411 or fully opens the corresponding air supply port 411. . When the plurality of second rotating members 430 are synchronously rotated at an angle corresponding to a central angle of one of the sliding groove segments, the plurality of air blowing ports 411 have an air combination state, so that the plurality of air blowing ports 411 have a total of 2 ^N. A combination of wind and wind.

Further, when each of the second rotating members 430 rotates the angle of the central angle corresponding to one of the sliding groove segments, the first rotating member 460 is rotated by a corresponding preset angle, and the plurality of bosses 482 and the plurality of levers 484 are configured such that the plurality of The switch 483 has a control combination state after each of the first rotating members 460 is rotated by a corresponding preset angle, so that the plurality of switches 483 have a total of 2 ^N control combined states.

For example, in some specific embodiments of the present invention, as shown in FIG. 8 to FIG. 15, the number of the air blowing ports 411 may be three, and the first port and the second port are sequentially disposed along the circumferential direction of the casing 400'. And the third port, the corresponding cam chute can be a first cam chute, a second cam chute and a third cam chute, and the corresponding baffle 420 can be a first baffle 421, a second baffle 422, and The third baffle 423 has eight combinations of air outlets, and each cam chute can have eight chute segments.

The number of switches 483 and levers 484 is three. The plurality of bosses 482 include three first bosses 482a and one second bosses 482b which are sequentially spaced apart in the circumferential direction of the first rotating member 460; an arc between each two adjacent first bosses Corresponding central angle is a preset angle; a central angle corresponding to an arc between the first boss and the second boss adjacent to the second boss is two preset angles; each two adjacent levers 484 are An angle between projections in a reference plane perpendicular to the axis of the first rotating member 460 is a predetermined angle. Further, the corresponding sliding angle of the seven sliding groove segments of each cam chute may be, for example, 360°, or may be less than 360°, for example, 320°, 300°, or the like. When the seven chute segments of the cam chute correspond to a rotation angle of 360°, the corresponding central angle of each chute segment is about 51°. The second gear is an outer ring gear, and the gear ratio of the second gear to each of the second rotating members 430 can be 136/45, and the predetermined angle can be 17°.

As shown in FIG. 8, the first port, the second port, and the third port may be in a closed state, and the beginning end of the first chute segment of each cam chute may cause the corresponding baffle 420 to be in a closed state. The three levers 484 can be completely separated from the four bosses 482, so that the corresponding switches 483 are all in the closed state, and the transmitted information is that all three ports are in the closed state.

As shown in FIG. 9 , the first port and the third port may be in a closed state, the second port may be in an open state, and the end of the first chute segment of the second cam chute (ie, the beginning end of the second chute segment) may be When the corresponding baffle 420 is in an open state, both ends of the first chute section of the second cam chute have a distance difference in the radial direction of the second rotating member 430 to make the first sliding of the second cam chute The groove segment is non-circular, so that the baffle 420 is rotated to an open state during the rotation of the corresponding second rotating member 430; the end of the first chute segment and the first chute segment of the third cam chute (ie, The beginning end of the second chute section can make the corresponding baffle 420 in a closed state, and the second chute groove and the first chute section of the third cam chute can each have a circular arc shape, and the corresponding second rotating member 430 The baffle 420 does not rotate during the rotation. A lever can be attached to the first first boss to open the corresponding switch, and the other two levers are completely separated from the boss, so that the corresponding switch is in a closed state, and the transmitted information is the first port and the third port. The port is closed and the second port is open.

As shown in FIG. 10, the third port can be in a closed state, and the first port and the second port can be in an open state, and the end of the second chute segment of the first cam chute (ie, the beginning end of the third chute segment) can be When the corresponding baffle 420 is in an open state, both ends of the second chute section of the first cam chute have a difference in the radial direction of the second rotating member 430 to make the second sliding of the first cam chute The groove segment is non-circular, so that the baffle 420 is rotated to an open state during the rotation of the corresponding second rotating member 430; the second cam chute and the end of the second chute segment of the third cam chute (ie, The first sliding end of the third sliding groove section can respectively make the corresponding baffle 420 in a correspondingly opened and correspondingly closed state, and the second sliding groove of the second cam chute and the third cam chute can be arc-shaped, correspondingly The baffle 420 is not rotated during the rotation of the second rotating member 430. The two levers can be attached to the first two first bosses to open the corresponding switch, and the other lever is completely separated from the boss, so that the corresponding switch is in the closed state, and the transmitted information is that the third port is in the closed state. The first and second ports are open.

As shown in FIG. 11, the second port and the third port may be in a closed state, the first port may be in an open state, and the end of the third chute segment of the second cam chute (ie, the beginning end of the fourth chute segment) may be When the corresponding baffle 420 is in the closed state, both ends of the third chute section of the first cam chute have a distance difference along the radial direction of the second rotating member 430 to make the third sliding of the first cam chute The groove segment is non-circular, so that the baffle 420 is rotated to the closed state during the rotation of the corresponding second rotating member 430. The end of the third chute section of the first cam chute (ie, the beginning end of the fourth chute section) can cause the corresponding baffle 420 to be in an open state, and the third chute section of the first cam chute can be arcuate The baffle 420 is not rotated during the rotation of the corresponding second rotating member 430. The end of the third chute section of the third cam chute (ie, the beginning end of the fourth chute section) may cause the corresponding baffle 420 to be in a closed state, and the third chute section of the third cam chute may have a circular arc shape The baffle 420 is not rotated during the rotation of the corresponding second rotating member 430. The three levers can be engaged with the three first bosses to open the corresponding switch, and the transmitted information is that the second port and the third port are in a closed state, and the first port is in an open state.

As shown in FIG. 12, the first port and the third port may be in an open state, and the second port may be in a closed state, and the end of the fourth chute segment of the first cam chute (ie, the beginning end of the fifth chute segment) may be When the corresponding baffle 420 is in the open state, the fourth chute section of the first cam chute can be arcuate, and the baffle 420 is not rotated during the rotation of the corresponding second rotating member 430. The end of the fourth chute section of the second cam chute (ie, the beginning end of the fifth chute section) may cause the corresponding baffle 420 to be in an open state, and the fourth chute section of the second cam chute may be arcuate The baffle 420 is not rotated during the rotation of the corresponding second rotating member 430. The end of the fourth chute section of the third cam chute (ie, the beginning end of the fifth chute section) can cause the corresponding baffle 420 to be in an open state, and the ends of the fourth chute section of the third cam chute are along the The radial direction of the two rotating members 430 has a distance difference such that the fourth sliding groove section of the first cam chute is non-circular, so that the baffle 420 is rotated to rotate during the rotation of the corresponding second rotating member 430. Open state. The rear two levers can be engaged with the first two first bosses, so that the corresponding switch is opened, and the first lever is completely separated from the boss, so that the corresponding switch is turned off, and the information transmitted is the first port and The third port is open and the second port is closed.

As shown in FIG. 13, the third port may be in an open state, and the first port and the second port may be in a closed state, and the end of the fifth chute segment of the first cam chute (ie, the beginning end of the sixth chute segment) may be When the corresponding baffle 420 is in the closed state, both ends of the fifth chute section of the first cam chute have a distance difference in the radial direction of the second rotating member 430 to make the fifth sliding of the first cam chute The groove segment is non-circular, so that the baffle 420 is rotated to the closed state during the rotation of the corresponding second rotating member 430. The second cam chute and the end of the fifth chute section of the third cam chute (ie, the beginning end of the sixth chute section) may cause the respective baffles 420 to be respectively in correspondingly closed and correspondingly opened states, and the second cam chute And the fifth sliding groove section of the third cam chute may be a circular arc shape, and does not drive the baffle 420 to rotate during the rotation of the corresponding second rotating member 430. The last lever can be engaged with the first first boss to open the corresponding switch, and the middle lever and the boss are all separated, so that the corresponding switch is closed, and the first lever can be attached to the second boss The corresponding switch is turned on, and the transmitted information is that the third port is in an open state, and the first port and the second port are in a closed state.

As shown in FIG. 14, the second port and the third port may be in an open state, the first port may be in a closed state, and the end of the sixth chute segment of the second cam chute (ie, the beginning end of the seventh chute segment) may be When the corresponding baffle 420 is in an open state, both ends of the sixth chute section of the second cam chute have a difference in the radial direction of the second rotating member 430 to make the sixth sliding of the second cam chute The groove section is non-circular, so that the baffle 420 is rotated to an open state during the rotation of the corresponding second rotating member 430. The first cam chute and the end of the sixth chute section of the third cam chute (ie, the beginning of the seventh chute section) may cause the respective baffles 420 to be respectively in correspondingly closed and correspondingly opened states, then the first cam chute And the sixth sliding groove section of the third cam chute may be a circular arc shape, and does not drive the baffle 420 to rotate during the rotation of the corresponding second rotating member 430. The middle lever can be attached to the second boss to open the corresponding switch, and the remaining levers are completely separated from the bosses, so that the corresponding switch is in the closed state, and the transmitted information is that the second port and the third port are open. The first port is closed.

As shown in FIG. 15, the first port, the second port, and the third port may both be in an open state, and the end of the seventh chute segment of the first cam chute may cause the corresponding baffle 420 to be in an open state, then the first cam Both ends of the seventh chute section of the chute have a distance difference along the radial direction of the second rotating member 430, so that the seventh chute section of the first cam chute is non-arc shaped, thereby correspondingly second During the rotation of the rotating member 430, the baffle 420 is rotated to an open state. The ends of the second sliding groove of the second cam chute and the third cam chute may be in an open state, and the second sliding groove of the second cam chute and the third cam chute may be round The arc shape does not drive the baffle 420 to rotate during the rotation of the corresponding second rotating member 430. The last lever can be attached to the second boss to open the corresponding switch, and the remaining levers are completely separated from the bosses, so that the corresponding switch is in the closed state, and the transmitted information is the first port, the second port and the third port. The port can be opened.

In some other embodiments of the present invention, the first cam chute, the second cam chute, and the third cam chute may also adopt other combined state chute segments, and 2 ^N kinds of the plurality of air blowing ports 411 can be realized. The combination of the wind and the wind can be.

In some embodiments of the present invention, the shunt air supply device 400 may be an in-line split air supply device 300, which may include a plurality of air supply openings arranged in a row, and each air supply port is also provided with a block The plate is rotated to different rotational positions to adjust the air outlet area of the corresponding air outlet. Specifically, the in-line split air supply device 300 may include a housing, a plurality of baffles, a plurality of transmission components, and a drive assembly. The housing may have a plurality of air vents. The air supply port may also be a ventilation channel having a certain length. The structure of each of the transmission assemblies is the same as that of the transmission assembly in the above-described splitter air supply unit 400. The drive assembly can be mounted to the housing and can have a drive source and a first transmission configured to transmit a motion of the output of the drive source to the plurality of second rotary members such that each second rotary member is stationary or Turn.

Further, the housing of the in-line split air supply device 300 includes a second rotating member mounting portion, a blowing port portion, a driving assembly mounting portion, and a cover portion. The air blowing port portion has a plurality of air blowing ports, and is located on the downstream side of the second rotating member mounting portion in the flow direction of the air flow. The driving component mounting portion is disposed at one end of the second rotating member mounting portion and the air blowing port portion. The second rotating member mounting portion includes a base having a mounting groove on a side away from the airflow, and a plurality of second rotating members are rotatably mounted in the mounting groove. Each baffle is rotatably mounted to the air vent portion. And one side of each air supply opening has a receiving cavity for receiving part or all of the second transmission mechanism corresponding to the baffle for adjusting the air outlet area of the air supply opening. The drive assembly mounting portion is for housing the drive assembly. The cover portion is disposed at one end of the mounting groove and the mounting portion of the drive assembly.

For example, to facilitate the description of the structure of the housing, the base may have an upper surface and a lower surface, and a lower surface is provided with a mounting groove for the airflow to flow therethrough. The air supply opening portion may have a bottom plate integrally formed with the base, a side wall of the air supply opening extending upward from the bottom plate, and a top wall of the air supply opening disposed opposite to the bottom plate. One side of the bottom plate adjacent to the substrate has a mounting space for the rotating shaft on which the baffle is mounted. The baffle can be attached to the upper surface of the bottom plate when the corresponding air supply opening is opened, so that the upper surface of the baffle is flush with the upper surface of the bottom plate to facilitate air supply. The drive assembly mounting portion is a hollow housing structure having a lower opening to facilitate mounting of the drive assembly and mounting closure of the cover portion. A cam chute is defined on a side surface of each of the second rotating members facing the base, and the transmission device is located on the upper side of the second rotating member and the baffle in the open state, so that the space in the housing can be fully utilized, so that the straight-distributed shunt is sent The wind device is compact.

In some embodiments of the invention, the first transmission mechanism includes a sixth gear. The sixth gear is directly or indirectly connected to the driving source and meshes with the second tooth on the second rotating member, and the second tooth on the second rotating member and the second tooth on the second rotating member Teeth engagement. Further, the driving source is a motor; the first transmission mechanism further includes a gear set, the gear set has a seventh gear mounted on the output shaft of the motor, and an eighth gear meshing with the seventh gear; the eighth gear is the same as the sixth gear The axes are set and rotate in sync. In some alternative embodiments, the sixth gear can be mounted directly to the output shaft of the motor.

In particular, the in-line split air supply device 300 in the embodiment of the present invention also includes a gear position sensing device. The first transmission mechanism has a first rotating member, and the gear position sensing device is configured to detect a position when the first rotating member 460 is stopped to determine an air blowing state of each air blowing port according to a position at which the first rotating member is stopped. In order to make the structure of the branch air supply device 400 more compact, the structure is simpler and the error is small, the first rotating member is preferably the sixth gear. In some alternative embodiments of the invention, the first rotating member may also be a dedicated gear that meshes with the sixth gear described above for use in the detection of gear position sensing devices.

Figure 16 is a schematic structural view of a refrigerator in accordance with one embodiment of the present invention. As shown in FIG. 16 and referring to FIG. 17 and FIG. 18, an embodiment of the present invention further provides a refrigerator 1 having a cabinet 100 having a storage space 100a therein, and the storage space may include one or more A storage compartment, each storage compartment can also be divided into a plurality of small storage spaces by the shelf/shelf. Further, the refrigerator is also provided with a duct assembly 200 and a shunt air blowing device 400 provided in any one of the above embodiments provided in the duct assembly 200. The duct assembly 200 is mounted to the cabinet 100 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 400' of the branching air blowing device 400 to pass through One or more of the plurality of air blowing ports 411 of the road air blowing device 400 flow to the storage space.

In some specific embodiments of the invention, the housing 100 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 100 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 400', a left air outlet on the left side of the casing 400', and a right air outlet on the right side of the casing 400'. 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 may be provided with a four-way split air supply device 300. The in-line split air supply device 300 may be the in-line split air supply device 300 in the above embodiment. Specifically, the in-line split air supply device 300 is connected to the intake air duct, and the plurality of air supply ports of the in-line split air supply device 300 are respectively connected to the plurality of air outlet ducts so as to be from the intake wind. The airflow within the track enters the corresponding air duct and then enters the storage space in a controlled/distributable manner. 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 outlets of the in-line split air supply device 300 may be three, such as a first air supply port, a second air supply port, and a third air supply port; the air outlet air passages may be three, such as the first air supply port. a first air passage that communicates, a second air passage that communicates with the second air supply port, and a third air passage that communicates with the third air supply 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. In some alternative embodiments of the invention, the in-line splitter air supply device 300 may also employ other configurations. For example, each baffle is individually controlled with a single motor.

The split air supply device 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 to be closed by cold air, 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 plurality of air supply openings;

a plurality of baffles, each of the baffles being rotatably mounted to one of the air supply openings for rotating to different rotational positions to adjust an air outlet area of the corresponding air supply opening;

a plurality of transmission assemblies, each of the transmission assemblies being coupled to a respective one of the baffles;

a drive device having a drive source and a first transmission mechanism, the first transmission mechanism configured to transmit a motion of the output of the drive source to a plurality of the transmission assemblies such that each of the transmission assemblies drives the corresponding The baffle is stationary or rotating; and the first transmission mechanism has a first rotating member; and

The gear position sensing device is configured to detect a position when the first rotating member is stopped to determine an air blowing state of each of the air blowing ports according to a position at which the first rotating member stops.
The splitter air supply device according to claim 1, wherein the gear position sensing device comprises:

a switch assembly having a plurality of switches and a plurality of levers, each of the levers configured to open or close a respective one of the switches;

a plurality of bosses or gear adjusting rings having a plurality of bosses disposed on the first rotating member to rotate with the first rotating member to move each of the levers to the boss Opening/closing the corresponding switch; and moving each of the levers to a recess outside each of the bosses, the lever closing/opening the corresponding switch;

Each of the air blowing openings has at least two air blowing states of opening and closing, and the plurality of air baffles are configured such that a plurality of the air blowing ports have a preset number of combined air outlet states;

Each of the switches has two control states of opening and closing, and the plurality of the bosses and the plurality of the levers are configured such that the plurality of switches have at least the preset number of control combined states, such that each The control combination state reflects a state of the combined wind output.
The shunt air blowing device according to claim 2, wherein

Each of the transmission assemblies has a second rotating member and a second transmission mechanism; each of the second transmission mechanisms is configured to transmit a rotational motion of the respective second rotating member to one of the baffles to cause the blocking The plate is stationary or rotating;

a cam chute is formed on one side surface of each of the second rotating members;

Each of the second transmission mechanisms includes:

a first gear, the first gear is coupled to the corresponding baffle;

a transmission having an insertion portion inserted into the corresponding cam chute to be stationary or moved in a radial direction of the corresponding second rotating member when the respective second rotating member rotates; and the transmission The apparatus also has first teeth that mesh with the respective first gears to drive rotation of the respective baffles as they move in a radial direction of the respective second rotating members.
The shunt air blowing device according to claim 3, wherein

The number of the air blowing ports is N, the preset number is 2 N , and the plurality of the second rotating members rotate synchronously;

Each of the cam chutes includes at least 2 N -1 chute segments, and the insertion portion is at each end point of each of the chute segments, causing the respective baffles to close corresponding to the air supply ports or completely Opening the corresponding air blowing port, so that when the plurality of second rotating members rotate the angle of the central angle corresponding to one of the sliding groove segments, the plurality of air blowing ports have an air combination state, thereby a plurality of the air blowing ports have a total of 2 N air combination states;

When each of the second rotating members rotates an angle of a central angle corresponding to one of the sliding groove segments, the first rotating member rotates by a corresponding preset angle, and the plurality of the protruding portions and the plurality of the levers are configured to And causing a plurality of the switches to have a control combination state after the first rotating member rotates the corresponding preset angle, so that the plurality of the switches have a total of 2 N control combined states.
The shunt air blowing device according to claim 4, wherein

The number of the air blowing ports is three; the number of the switch and the lever are three;

a plurality of the bosses include three first bosses and a second boss sequentially spaced apart in a circumferential direction of the first rotating member; between each two adjacent first bosses a central angle corresponding to the arc is one of the preset angles; a central angle corresponding to an arc between the first boss and the second boss adjacent to the second boss is two An angle is formed; an angle between each two adjacent said levers in a reference plane perpendicular to the axis of the first rotating member is one of said predetermined angles.
The shunt air blowing device according to claim 3, wherein

The first rotating member is a second gear; each of the second rotating members is provided with a plurality of second teeth;

The second gear is directly or indirectly connected to the driving source, and the second gear is an external gear, an internal ring gear or an external ring gear, and the second on each of the second rotating members The teeth are meshed to drive a plurality of the second rotating members to rotate.
The shunt air blowing device according to claim 3, wherein

Each of the transmissions includes a rack, the rack has the first teeth, and one end of the rack is provided with the insertion portion; or

Each of the transmissions includes:

a sliding strip, one end of the sliding strip is provided with the first tooth, and a side of the sliding strip facing the second rotating member has a groove;

a slider mounted to the groove, and the slider has the insertion portion; and

An elastic member is disposed between the slider and a sidewall of the groove that is perpendicular to a length direction of the slider.
The shunt air blowing device according to claim 6, wherein

The driving source is a motor; the first transmission mechanism further includes a third gear mounted to an output shaft of the motor; and the third gear meshes with the second gear;

The second gear is an inner ring gear or an outer ring gear, a plurality of the bosses are disposed in the ring of the second gear, and the switch assembly is mounted on the casing and in the second gear Inside the ring.
The shunt air supply device according to claim 3, wherein the housing further comprises:

Damper bottom cover;

a base mounted on one side of the damper bottom cover, and the first rotating member and the plurality of second rotating members are mounted between the base and the damper bottom cover;

a peripheral wall portion, the peripheral wall portion is disposed on a side of the base facing away from the damper bottom cover, and the peripheral wall portion is provided with a plurality of the air blowing ports, and the plurality of the air blowing ports are along the shell The circumferential direction of the body is sequentially spaced; and

a damper cover, the damper cover is disposed at an end of the peripheral wall portion away from the base; and the peripheral wall portion or the damper cover is provided with an air inlet;

The shunting air supply device further includes a wind supply device disposed in the casing, configured to cause airflow into the casing and out of the casing via one or more of the plurality of air blowing ports;

The air supply device is a centrifugal impeller.
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 9, 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.