CN108302876B - Branching air supply device and refrigerator - Google Patents
Branching air supply device and refrigerator Download PDFInfo
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- CN108302876B CN108302876B CN201711489269.0A CN201711489269A CN108302876B CN 108302876 B CN108302876 B CN 108302876B CN 201711489269 A CN201711489269 A CN 201711489269A CN 108302876 B CN108302876 B CN 108302876B
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- air
- air supply
- bevel gear
- refrigerator
- baffle plate
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
- F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
- F25D17/062—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
Abstract
the invention provides a shunting air supply device and a refrigerator. Wherein, the branch air supply device includes: a housing having a plurality of supply air ports; a plurality of baffles, each baffle is rotatably arranged at one air supply opening and has a first position and a second position; the transmission assembly comprises a plurality of transmission assemblies, a plurality of driving assemblies and a plurality of control devices, wherein each transmission assembly is provided with a rotating piece, a bevel gear, a clutch mechanism and a reset device; one side of the rotating part is a discontinuous bevel gear structure matched with the bevel gear; the bevel gears are connected to the corresponding baffle plates through clutch mechanisms; and the clutch mechanism is configured to make the corresponding baffle plate not stop the rotation of the bevel gear and the rotating piece when the corresponding baffle plate is static; the reset device is arranged on the baffle plate and is configured to promote the corresponding baffle plate to return to the first position when the bevel gear is disengaged from the rotating part; and a drive device. The flow path and the flow of the cold air can be conveniently and uniformly adjusted, the cold air is reasonably distributed, and the preservation performance and the operation efficiency of the refrigerator are enhanced; and the control is simple, the adjustment is convenient, the adjustment speed is high, and the adjustment accuracy is high.
Description
Technical Field
The invention relates to the field of refrigerator storage, in particular to a branching air supply device and a refrigerator.
Background
at present, an air-cooled refrigerator generates cold air through a built-in evaporator, and the cold air circularly flows to each storage compartment of the refrigerator through an air duct to realize refrigeration. For the air-cooled refrigerator, the fresh-keeping performance of food greatly depends on whether the air flow circulation in the storage chamber is reasonable or not. If cold air flows randomly through the air duct, the air quantity entering each storage room is easy to be too much or insufficient, the temperature distribution in the storage rooms is unbalanced, and the operation efficiency of the refrigerator is reduced. Therefore, it is necessary to perform precise flow distribution and flow control of the cool air introduced into each storage compartment. Similarly, in order to optimize the storage space, a single storage chamber is generally divided into a plurality of refined storage spaces by a storage device such as a rack or a drawer, and the cooling capacity required by each storage space is different according to the quantity of stored articles, so that the cold air directly enters the storage chamber from a certain position of the storage chamber without being controlled, and the problems of partial supercooling of the storage space and insufficient cooling capacity of partial storage space are caused.
Disclosure of Invention
in view of the above problems, the present invention is proposed to provide a refrigerator and a branched air supply device for the refrigerator that overcome or at least partially solve the above problems, so as to conveniently and uniformly adjust the flow path and flow rate of cold air, so that the cold air can be reasonably distributed according to the cold requirement of different storage compartments or the cold requirement of different positions of one storage compartment, thereby enhancing the preservation performance and operation efficiency of the refrigerator; and the control is simple, the adjustment is convenient, the adjustment speed is high, and the adjustment accuracy is high.
in one aspect, the present invention provides a branching air supply apparatus for a refrigerator, including:
a casing having a peripheral wall portion provided with a plurality of air supply ports;
the baffles are rotatably arranged at the air supply outlet, rotate to different positions to adjust the air outlet area of the corresponding air supply outlet and are provided with a first position and a second position; one of the first position and the second position is used for closing the corresponding air supply outlet, and the other position is used for opening the corresponding air supply outlet;
A plurality of transmission assemblies, each transmission assembly having a rotating member, a bevel gear, a clutch mechanism and a reset device; one side of the rotating part is of a discontinuous bevel gear structure matched with the bevel gear; the bevel gear is connected with a corresponding baffle plate through the clutch mechanism so as to enable the corresponding baffle plate to rotate from the first position to the second position when the bevel gear is meshed with the rotating part; and the clutch mechanism is configured not to prevent the rotation of the bevel gear and the rotating member when the corresponding baffle plate is stationary after the corresponding baffle plate is rotated from the first position to the second position and under the meshing force of the rotating member and the bevel gear, so that the corresponding baffle plate is kept at the second position; the reset device is arranged on one corresponding baffle plate and is configured to urge the corresponding baffle plate to return to the first position when the bevel gear is disengaged from the rotating part; and
A driving device having a driving source and a transmission mechanism configured to transmit one motion output from the driving source to a plurality of the rotating members to make each of the rotating members stationary or rotate.
Optionally, the return means is a torsion spring.
Optionally, the transmission mechanism comprises a first gear; each rotating piece is provided with a plurality of teeth;
The first gear is directly or indirectly connected to the driving source, and is engaged with each of the teeth of the rotating member to drive the rotating member to rotate.
Optionally, the drive source is a motor; the transmission mechanism further comprises a second gear mounted on an output shaft of the motor; and the second gear is meshed with the first gear.
Optionally, the housing further comprises:
An air door bottom cover; and
the base is arranged on one side of the air door bottom cover, and the first gear and the rotating pieces are arranged between the base and the air door bottom cover; the peripheral wall part is arranged on one side of the base, which faces away from the air door bottom cover.
optionally, the air supply device is arranged in the shell and is configured to promote airflow into the shell and flow out of the shell through one or more of the plurality of air supply openings.
Optionally, the air supply device is a centrifugal impeller configured to urge the air flow into the housing from an axial direction of the housing.
optionally, the number of the air supply outlets is N, and the plurality of rotating members rotate synchronously;
Each discontinuous bevel gear structure comprises at least 2 N -1 structure sections, and when the bevel gear is positioned at each endpoint of each structure section, the corresponding baffle is positioned at the first position or the second position, so that when the rotating members rotate by an angle of a central angle corresponding to the structure section synchronously, the air outlets have an air outlet state, and further the air outlets have 2 N air outlet states.
In another aspect, the present invention also provides a refrigerator, comprising:
the refrigerator comprises a refrigerator body, a storage box and a control device, wherein a storage space is formed in the refrigerator body;
The air duct assembly is arranged on the box body and is provided with a plurality of cold air outlets; the plurality of cold air outlets are communicated with the storage space; and
Any one of the branch air supply devices is arranged in the air duct assembly; each air supply outlet of the branch air supply device is communicated with one or more cold air outlets, and each cold air outlet is communicated with one air supply outlet, so that air flow entering the shell of the branch air supply device flows to the storage space through one or more air supply outlets of the branch air supply device.
The branching air supply device and the refrigerator comprise a plurality of air supply outlets, and the driving source can be controlled to drive the plurality of baffles to rotate so as to realize selection of the air outlet channels or adjustment of the air outlet quantity in each air outlet channel, so that cold air can be reasonably distributed according to the cold quantity requirements of different storage chambers or the cold quantity requirements of different positions of one storage chamber, and the fresh-keeping performance and the operation efficiency of the refrigerator are enhanced. Moreover, the air passage can be completely sealed, and air leakage can be prevented.
furthermore, the shunt air supply device of the invention utilizes the discontinuous bevel gear, the clutch mechanism and the reset device, so that the baffle plate is more stable to turn over, and the shunt air supply device has the advantages of simple and compact structure, simple, convenient and accurate air supply adjustment and low noise.
Furthermore, as the plurality of air supply outlets of the branching air supply device are arranged in a circumferential or peripheral manner, circumferential air outlet of a plurality of (such as 3) air supply outlets can be realized, the overall structural design of the branching air supply device can be facilitated, and the branching air supply device has simple and compact structure and reasonable layout; the installation in the refrigerator is also convenient, and the reasonable arrangement of the air channels in the refrigerator is convenient. In addition, the driving device is utilized in the branch air supply device to drive the rotating pieces to rotate simultaneously, so that the rotation of the baffles is realized, the number of parts is small, and the transmission is convenient and accurate.
furthermore, the branch air supply device and the refrigerator are provided with the air supply device, so that the air supply efficiency of the branch air supply device is obviously improved, the branch air supply device can independently supply air, and the branch air supply device is particularly suitable for double-system or multi-system refrigerators. Particularly, the centrifugal fan is adopted for air supply, and the air supply device is particularly suitable for direct air outlet of a refrigerator cooling chamber.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
some specific embodiments of the invention will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
FIG. 1 is a schematic configuration diagram of a branching air-blowing device according to an embodiment of the present invention;
FIG. 2 is a schematic exploded view of a split blower arrangement according to one embodiment of the present invention;
FIG. 3 is a schematic exploded view of another perspective of a bifurcated blower device according to one embodiment of the present invention;
fig. 4 to 11 are schematic structural diagrams respectively illustrating various air outlet states in the branching air supply device according to the embodiment of the invention;
fig. 12 is a schematic structural view of a branched air blowing device mounted to a duct assembly according to an embodiment of the present invention.
Detailed Description
Fig. 1 is a schematic configuration diagram of a branching air-blowing device according to an embodiment of the present invention. As shown in fig. 1, and referring to fig. 2 to 11, an embodiment of the present invention provides a branching blowing device 400 for a refrigerator. The split air delivery device 400 may include a housing 410, a plurality of baffles 420, a plurality of transmission assemblies, and a drive device.
The casing 410 has a peripheral wall portion 412, and a plurality of air blowing ports 411 are provided in the peripheral wall portion 412, and the plurality of air blowing ports 411 are provided at intervals in the circumferential direction of the casing 410. The blowing port 411 may be a blowing passage having a certain length. Further, the housing 410 may further include structures disposed at both ends of the peripheral wall portion 412. Each baffle 420 is rotatably installed at one of the air blowing openings 411 to rotate to different positions to adjust the air outlet area of the corresponding air blowing opening 411, for example, the corresponding air blowing opening 411 can be opened or closed to realize complete air outlet and zero air outlet. Each respective flap 420 may have a first position and a second position, one of the first and second positions being to close the respective supply port 411 and the other being to open the respective supply port 411. Each transmission assembly may be mounted to the housing 410 and configured to rotate the corresponding flap 420 between the first position and the second position and to maintain the flap 420 in either the first position or the second position. The driving device may be mounted to the case 410, and may have a driving source 450 and a transmission mechanism configured to transmit one motion output from the driving source 450 to a plurality of rotating assemblies.
Further, each transmission assembly may have a rotating member 430, bevel gears, a clutch mechanism, and a reset device. One side of the rotation member 430 is a discontinuous bevel gear structure that is engaged with the bevel gear. The bevel gears are coupled to the respective flapper 420 via a clutch mechanism to rotate the respective flapper from a first position to a second position when engaged with the rotary member. The clutch mechanism is configured to hold the corresponding stop plate 420 in the second position after the corresponding stop plate is rotated from the first position to the second position and while the corresponding stop plate is stationary due to the engagement force of the rotating member with the bevel gear. The reset device is mounted to the blocking plate and configured to urge the corresponding blocking plate to return to the first position when the bevel gear is disengaged from the rotating member. The transmission mechanism may be engaged with the plurality of rotating members 430 to make each rotating member 430 stationary or rotate. That is, when the driving source 450 outputs a rotational motion or a linear motion, the plurality of rotation members 430 may be rotated or kept stationary by the transmission mechanism.
The baffles 420 of the branching air supply device 400 in the embodiment of the invention can controllably distribute cold air to the air supply outlets 411 to realize various air outlet states, and can control the opening and closing of the air outlet duct communicated with each air supply outlet 411 and/or adjust the air outlet volume in each air outlet duct, thereby meeting the cold quantity requirements of different storage compartments, or the cold quantity requirements of different positions of one storage compartment, or the cold quantity requirements of different storage spaces in one storage compartment. In operation, the driving source 450 drives the plurality of rotating members 430 to rotate through the transmission mechanism, and each rotating member 430 rotates to turn over the corresponding baffle 420 through the bevel gear, the clutch mechanism and the reset device, so as to open or close or adjust the corresponding air supply opening 411. Further, the transmission assembly can turn over or keep the corresponding baffle 420 still, so that the plurality of air supply outlets 411 can realize various air outlet states, for example, one air supply outlet 411 is closed, the other air supply outlet 411 is opened, two air supply outlets 411 are closed simultaneously, and the like. Furthermore, the plurality of air supply outlets 411 of the branching air supply device 400 in the embodiment of the present invention are arranged in a circumferential manner or a peripheral manner, so that circumferential air outlet of a plurality of (for example, 3) air supply outlets 411 can be realized, the overall structural design of the branching air supply device 400 can be facilitated, and the branching air supply device 400 has a simple and compact structure and a reasonable layout; the installation in the refrigerator is convenient for, the rational arrangement of wind channel in the refrigerator is convenient for.
in some embodiments of the invention, the return device is a torsion spring. The clutch mechanism may be a friction clutch mechanism. For example, when the baffle plate is at the first position, the rotating member starts to rotate, the discontinuous bevel gear structure starts to be meshed with the bevel gear, and the clutch mechanism enables the friction force between the bevel gear and the rotating shaft of the baffle plate to be enough to enable the bevel gear to drive the baffle plate to rotate until the baffle plate rotates to the second position. When the baffle rotates to the second position and the air outlet states of the plurality of air outlets need to be adjusted, the baffle rotating the second position may still be in the second position, at this time, the meshing force between the discontinuous bevel gear structure and the bevel gear may be large enough, the friction force between the bevel gear and the rotating shaft of the baffle may be overcome to prevent the rotation of the rotating member, and the baffle may be kept in the second position. In some embodiments of the present invention, the clutch mechanism may include a plurality of ball heads disposed on an end surface of the rotating shaft of the baffle, and a plurality of grooves disposed on an end surface of the bevel gear. In still other embodiments of the present invention, the clutch mechanism includes a plurality of elastic buckles disposed on the rotating shaft of the baffle, and a plurality of clamping grooves disposed in the rotating hole of the bevel gear, engaged with the elastic buckles, and extending along the axial direction of the rotating hole.
In some embodiments of the invention, the plurality of supply air ports 411 are equal in size or are not equal in size; alternatively, some of the supply air outlets 411 may be equal in size. For example, the number of the air blowing openings 411 is 3, wherein two air blowing openings 411 have the same size, and the other air blowing opening 411 is larger, and can be 1.5 times to 2.5 times of the smaller two air blowing openings 411. Preferably, the sizes of the plurality of blowing openings 411 are set to be equal.
In some further embodiments of the present invention, the housing 410 further includes a damper bottom cover 413 and a base 414. The base 414 is installed at one side of the damper bottom cover 413, and the plurality of rotation pieces 430 are installed between the base 414 and the damper bottom cover 413. The peripheral wall portion 412 is provided on a side of the base 414 facing 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 air flow to pass through and the side of the base 414 facing away from the damper bottom cover 413 are preferably in the same plane to facilitate the air flow. In some embodiments of the present invention, the housing 410 may further include a damper cap disposed at an end of the peripheral wall portion 412 remote from the base 414; and an air inlet is provided on the peripheral wall portion 412 or the air door top cover. Preferably, the air inlet is arranged at the top cover of the air door.
In some embodiments of the invention, the transmission mechanism may 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, and is engaged with the teeth of the plurality of rotating members 430 to rotate the plurality of rotating members 430. Preferably, each of the rotation members 430 is provided with a ring of teeth, which may be located at the other side of the rotation member 430, so as not to interfere with the engagement of the discontinuous bevel gear structure with the bevel gear, i.e., each of the rotation members 430 may correspond to a gear having teeth at both sides. Further, a first gear 460, preferably a ring gear having external teeth and a discontinuous bevel gear structure, is mounted between the base 414 and the damper bottom 413. The first gear 460 may also be disc-shaped.
Further, the driving source 450 is a motor; the transmission mechanism also comprises a second gear arranged on the output shaft of the motor; and the second gear is engaged with the first gear 460. The peripheral wall portion 412 is provided with a housing portion 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 is also provided with a fourth gear arranged on the output shaft of the motor and a fifth gear meshed with the fourth gear; the fifth gear is coaxially disposed with the first gear 460 and rotates in synchronization. In still other alternative embodiments, the first gear 460 may be mounted directly to the output shaft of the motor. The gear set transmission can be adopted to enable the rotation motion of the motor to be transmitted to the rotating part 430 and the baffle plate 420 in a speed reducing mode, so that the movement stability and low noise of the baffle plate 420 can be guaranteed.
In some embodiments of the present invention, in order to improve the air supply efficiency, or to enable the branched air supply device 400 to be directly applied to the refrigerator cooling chamber outlet air, the branched air supply device 400 further includes an air supply device 470 disposed in the casing 410 and configured to promote the airflow to enter the casing 410 and to exit the casing 410 through one or more of the plurality of air supply outlets 411. Preferably, the air supply device 470 is a centrifugal impeller configured to promote airflow into the housing 410 from an axial direction of the housing 410. When the air supply device 400 is applied to air outlet of the cooling chamber, the air inlet of the air supply device 400 can be directly arranged at the air outlet of the cooling chamber, so that axial air inlet and radial air outlet can be conveniently realized, and the air outlet can be guided in a vertical plane.
In some embodiments of the present invention, it is preferable that each of the shutters 420 has at least two states of opening and closing the corresponding air supply opening 411, and the plurality of rotation members 430 are equal in size and rotate synchronously, the number of the air supply openings 411 may be N, where N is a natural number greater than or equal to 2, in order to allow the plurality of air supply openings 411 to have 2 N air outlet states, that is, the plurality of air supply openings 411 have 2 N air outlet combination states, each of the discontinuous bevel gear structures includes at least 2 N -1 structural sections, and the bevel gear is located at each end point of each structural section, the corresponding shutter 420 is located at the first position or the second position, so that the plurality of air supply openings 411 have one air outlet state every time the plurality of rotation members 430 rotate synchronously by an angle of a central angle corresponding to one structural section, and thus the plurality of air supply openings 411 have 2 N air outlet states.
For example, as shown in fig. 4 to 11, the number of the blowing openings 411 may be three, and the first opening, the second opening, and the third opening are sequentially arranged along the circumferential direction of the casing 410, so that the corresponding discontinuous bevel gear structures may be a first discontinuous bevel gear structure, a second discontinuous bevel gear structure, and a third discontinuous bevel gear structure, the corresponding baffle 420 may be a first baffle 421, a second baffle 422, and a third baffle 423, and have eight wind outlet states, and each discontinuous bevel gear structure may have eight structural sections. The first position may be to open the respective supply vent 411 and the second position may be to close the respective supply vent 411.
as shown in fig. 4, the first port, the second port, and the third port may each be in an open state, and the beginning of the first structure segment of each non-continuous bevel gear structure may place the corresponding baffle 420 in an open state. I.e., the beginning of the first structure section of each non-continuous bevel gear structure has no teeth, or is ready to start with 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, and the end of the first structural section (i.e., the beginning of the second structural section) of the first discontinuous bevel gear structure, the second discontinuous bevel gear structure and the third discontinuous bevel gear structure may enable the corresponding baffle 420 to be in the closed state, and the first structural section is a structural section with bevel teeth, so that the baffle 420 is driven to rotate to the closed state in the process of rotating the corresponding rotating member 430.
As shown in fig. 6, the third port may be in an open state, the first port and the second port may be in a closed state, the end of the second structural section (i.e., the beginning of the third structural section) of the first discontinuous bevel gear structure and the second discontinuous bevel gear structure may enable 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 with bevel teeth, at which the clutch mechanism does not interfere with the rotation of the corresponding rotating member 430, so that the corresponding baffle 420 may maintain the closed state. The end of the second segment of the third non-continuous bevel gear structure (i.e., the beginning of the third segment) may cause the corresponding baffle 420 to be in an open state, and at least the end region of the second segment of the third non-continuous bevel gear structure has no bevel teeth, so that the reset device drives the corresponding baffle to rotate to open the third opening.
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 segment of the first discontinuous bevel gear structure (i.e., the beginning of the fourth structural segment) can make the corresponding baffle 420 in a closed state, and the third structural segment of the first discontinuous bevel gear structure is a structural segment with bevel teeth, and at this time, the clutch mechanism does not interfere with the rotation of the corresponding rotating member 430, so that the corresponding baffle 420 is kept in a closed state. The end of the third structural segment of the second non-continuous bevel gear structure (i.e., the beginning of the fourth structural segment) may cause the corresponding baffle 420 to be in an open state, and at least the end region of the third structural segment of the second non-continuous bevel gear structure has no bevel teeth, so that the reset device drives the corresponding baffle to rotate to open the second port. The end of the third structural segment of the third non-continuous bevel gear structure (i.e., the beginning of the fourth structural segment) may cause the corresponding baffle 420 to be in an open state, and the third structural segment of the third non-continuous bevel gear structure is a structural segment without bevel teeth, so that the corresponding baffle 420 remains in an open state.
As shown in fig. 8, the second port may be in an open state, and the first port and the third port may be in a closed state. The end of the fourth structural section of the first discontinuous bevel gear structure (i.e., the beginning of the fifth structural section) may cause the corresponding blocking plate 420 to be in the closed state, and the fourth structural section of the first discontinuous bevel gear structure is a structural section with bevel teeth, at this time, the clutch mechanism does not interfere with the rotation of the corresponding rotating member 430, so that the corresponding blocking plate 420 remains in the closed state. The end of the fourth structural segment of the second non-continuous bevel gear structure (i.e., the beginning of the fifth structural segment) may cause the corresponding baffle 420 to be in an open state, and the fourth structural segment of the second non-continuous bevel gear structure is a structural segment without bevel teeth, so that the corresponding baffle 420 remains in the open state. The end of the fourth structural section of the third discontinuous bevel gear structure (i.e., the beginning of the fifth structural section) can make the corresponding baffle 420 in the closed state, and at least the end region of the fourth structural section of the third discontinuous bevel gear structure has bevel teeth, so that the rotating member 430 drives the corresponding baffle to rotate to close the third opening.
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 segment of the first non-continuous bevel gear structure (i.e., the beginning of the sixth structural segment) may cause the corresponding baffle 420 to be in the open state, and at least the end region of the fifth structural segment of the first non-continuous bevel gear structure has no bevel teeth, so that the reset device drives the corresponding baffle to rotate to open the first port. The end of the fifth segment of the second non-continuous bevel gear structure (i.e. the beginning of the sixth segment) can make the corresponding baffle 420 in the closed state, and at least the end region of the fifth segment of the second non-continuous bevel gear structure has bevel teeth, so that the rotating member 430 drives the corresponding baffle to rotate to close the second opening. The end of the fifth structural segment of the third discontinuous bevel gear structure (i.e., the beginning of the sixth structural segment) may cause the corresponding blocking plate 420 to be in the closed state, and the fifth structural segment of the third discontinuous bevel gear structure is a structural segment with bevel teeth, at this time, the clutch mechanism does not interfere with the rotation of the corresponding rotating member 430, so that the corresponding blocking plate 420 remains in the closed state.
As shown in fig. 10, the first and third ports may be in an open state, and the second port may be in a closed state. The end of the sixth structural segment of the first non-continuous bevel gear structure (i.e., the beginning of the seventh structural segment) may cause the corresponding baffle 420 to be in the open state, and the sixth structural segment of the first non-continuous bevel gear structure is a structural segment without bevel teeth, so that the corresponding baffle 420 remains in the open state. The end of the sixth structural section of the second discontinuous bevel gear structure (i.e., the beginning of the seventh structural section) can make the corresponding baffle 420 in the closed state, and the sixth structural section of the second discontinuous bevel gear structure is a structural section with bevel teeth, at this time, the clutch mechanism does not interfere with the rotation of the corresponding rotating member 430, so that the corresponding baffle 420 is kept in the closed state. The end of the sixth structural segment of the third non-continuous bevel gear structure (i.e., the beginning of the seventh structural segment) may cause the corresponding baffle 420 to be in the open state, and at least the end region of the sixth structural segment of the third non-continuous bevel gear structure has no bevel teeth, so that the reset device drives the corresponding baffle to rotate to open the third opening.
As shown in fig. 11, the first port, 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 segment of the first non-continuous bevel gear structure may cause the corresponding baffle 420 to be in an open state, and the seventh structural segment of the first non-continuous bevel gear structure is a structural segment without bevel teeth, so that the corresponding baffle 420 remains in the open state. The end of the seventh structure segment of the second non-continuous bevel gear structure may enable the corresponding baffle 420 to be in an open state, and at least the end region of the seventh structure segment of the second non-continuous bevel gear structure has no bevel teeth, so that the reset device drives the corresponding baffle to rotate to open the second port. The end of the seventh structure segment of the third discontinuous bevel gear structure can make the corresponding baffle 420 in a closed state, and at least the end region of the seventh structure segment of the third discontinuous bevel gear structure has bevel teeth, so that the rotating member 430 drives the corresponding baffle to rotate to close the third opening.
In some embodiments of the present invention, to facilitate the rotation of the rotating member 430 for one rotation, each of the discontinuous bevel gear structures may include a 2 N th structural section, when three air supply ports are provided, each of the first, second, and third discontinuous bevel gear structures in the above embodiments further includes an eighth structural section, the start of the eighth structural section is the end of the seventh structural section, and the end of the eighth structural section is the start of the first structural section.
in some other embodiments of the present invention, the first discontinuous bevel gear structure, the second discontinuous bevel gear structure, and the third discontinuous bevel gear structure may also adopt other structural sections in a combined state, and 2 N air outlet states of the plurality of air outlets 411 may be achieved.
The embodiment of the invention also provides a refrigerator which is provided with a refrigerator body, wherein the refrigerator body is internally provided with a storage space, the storage space can comprise one or more storage compartments, and each storage compartment can be divided into a plurality of small storage spaces by the storage plates/racks. Further, as shown in fig. 12, the refrigerator is also provided with an air duct assembly 200 and the branched air supply device 400 of any of the above embodiments, which is provided in the air duct assembly 200. The air duct assembly 200 is installed in the cabinet and has a plurality of cool air outlets; a plurality of cold wind export and storing space intercommunication. Each of the blowing ports 411 of the branching blowing device 400 communicates with one or more cool air outlets, and each cool air outlet communicates with one blowing port 411, so that the air flow entering the housing 410 of the branching blowing device 400 flows to the storage space via one or more of the plurality of blowing ports 411 of the branching blowing device 400.
In some specific embodiments of the invention, the housing further has a cooling chamber. The air duct assembly 200 may have a mounting cavity and a plurality of cool air outlets, each communicating with one of the storage compartments, either directly or via other ducts. The air duct assembly 200 is disposed at the front side of the cooling chamber, and the installation cavity faces the air outlet of the cooling chamber. The air supply device 400 is installed in the installation cavity, and the air inlet of the air supply device 400 is aligned with the air outlet of the cooling chamber. Each air supply outlet 411 is communicated with a cold air outlet so as to supply air into the storage compartments in an adjustable manner. Specifically, the cabinet may include a refrigerating chamber, a left freezing chamber and a right freezing chamber located at a lower side of the refrigerating chamber. The number of the air supply outlets 411 of the branching air supply device 400 is three, and the branching air supply device includes an upper air outlet located at the upper portion of the housing 410, a left air outlet located at the left side of the housing 410, and a right air outlet located at the right side of the housing 410. The upper air outlet can be communicated with the refrigerating chamber, the left air outlet is communicated with the left freezing chamber, and the right air outlet is communicated with the right freezing chamber. In some alternative embodiments of the present invention, the branched blowing device 400 can also blow air to multiple locations of one storage compartment.
In some further embodiments of the present invention, some or all of the cool air outlets of the air duct assembly 200 may supply air to multiple locations of one storage compartment via the air duct pipe assembly. For example, the upper air outlet can supply air to the refrigerating chamber through the air duct pipe assembly.
an air inlet duct and a plurality of air outlet ducts can be defined in the duct tube assembly, and each air outlet duct is provided with one or a plurality of cold air outlets. The air duct pipe assembly can be provided with a straight-row type branch air supply device. The direct-exhaust type branching air supply device can comprise a plurality of air supply outlets arranged in a row, and a baffle is also arranged at each air supply outlet to rotate to different positions to adjust the air outlet area of the corresponding air supply outlet. The direct-discharging type branch air supply device is communicated with the air inlet duct, and a plurality of air supply outlets of the direct-discharging type branch air supply device are respectively communicated with a plurality of air outlet ducts, so that air flow from the air inlet duct can enter the corresponding air outlet ducts in a controlled/distributable manner and then enter the storage space. The plurality of air outlet ducts can be configured to enable the air flow flowing out of the air duct pipe assembly to enter one storage compartment (such as a refrigerating compartment) of the refrigerator from a plurality of positions on the compartment wall of the storage compartment. For example, the number of the blowing ports of the straight-line type branching blowing device may be 3, such as a first port, a second port and a third port; the number of the air outlet channels can be 3, such as a first air channel communicated with the first port, a second air channel communicated with the second port and a third air channel communicated with the third port. The first air duct can be provided with two or four cold air outlets and is symmetrically arranged at the upper part of the rear wall of the refrigerating chamber. The first duct may have a cool air outlet provided at a lower portion of a rear wall of the refrigerating compartment. The second air duct can be positioned between the first air duct and the second air duct, is provided with one or two cold air outlets and is arranged in the middle of the rear wall of the refrigerating chamber. Furthermore, the refrigerating chamber can be divided into three small storage spaces by using two racks, and each air outlet duct is communicated with one small storage space.
The branching air supply device 400 and/or the straight-line branching air supply device in the refrigerator provided by the embodiment of the invention can realize on-off or air volume adjustment of the air outlet duct, and the cold air outlet in the refrigerator is opened when cold air is needed and closed when cold air is not needed, so that the constancy of the temperature in the refrigerator is controlled, the optimal storage environment is provided for food in the refrigerator, the nutrition loss of the food is reduced, the power consumption of the refrigerator can be reduced, and the energy is saved.
Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been illustrated and described in detail herein, many other variations or modifications consistent with the principles of the invention may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Accordingly, the scope of the invention should be understood and interpreted to cover all such other variations or modifications.
Claims (9)
1. a split air supply apparatus for a refrigerator, comprising:
a casing having a peripheral wall portion provided with a plurality of air supply ports;
The baffles are rotatably arranged at the air supply outlet, rotate to different positions to adjust the air outlet area of the corresponding air supply outlet and are provided with a first position and a second position; one of the first position and the second position is used for closing the corresponding air supply outlet, and the other position is used for opening the corresponding air supply outlet;
A plurality of transmission assemblies, each transmission assembly having a rotating member, a bevel gear, a clutch mechanism and a reset device; one side of the rotating part is of a discontinuous bevel gear structure matched with the bevel gear; the bevel gear is connected with a corresponding baffle plate through the clutch mechanism so as to enable the corresponding baffle plate to rotate from the first position to the second position when the bevel gear is meshed with the rotating part; and the clutch mechanism is configured not to prevent the rotation of the bevel gear and the rotating member when the corresponding baffle plate is stationary after the corresponding baffle plate is rotated from the first position to the second position and under the meshing force of the rotating member and the bevel gear, so that the corresponding baffle plate is kept at the second position; the reset device is arranged on one corresponding baffle plate and is configured to urge the corresponding baffle plate to return to the first position when the bevel gear is disengaged from the rotating part; and
A driving device having a driving source and a transmission mechanism configured to transmit one motion output from the driving source to a plurality of the rotating members to make each of the rotating members stationary or rotate.
2. The split blowing device of claim 1,
The reset device is a torsion spring.
3. The split blowing device of claim 1,
The transmission mechanism comprises a first gear; each rotating piece is provided with a plurality of teeth;
the first gear is directly or indirectly connected to the driving source, and is engaged with each of the teeth of the rotating member to drive the rotating member to rotate.
4. The split blowing device of claim 3,
The driving source is a motor; the transmission mechanism further comprises a second gear mounted on an output shaft of the motor; and the second gear is meshed with the first gear.
5. The split air supply arrangement of claim 3, wherein the housing further comprises:
an air door bottom cover; and
The base is arranged on one side of the air door bottom cover, and the first gear and the rotating pieces are arranged between the base and the air door bottom cover; the peripheral wall part is arranged on one side of the base, which faces away from the air door bottom cover.
6. The split ventilation device of claim 1, further comprising:
An air supply device disposed within the housing and configured to urge airflow into the housing and out of the housing via one or more of the plurality of supply air outlets.
7. The split blowing device of claim 6,
The air supply device is a centrifugal impeller configured to urge an air flow into the housing from an axial direction of the housing.
8. The split blowing device of claim 1,
The number of the air supply outlets is N, and the rotating pieces rotate synchronously;
each discontinuous bevel gear structure comprises at least 2 N -1 structure sections, and when the bevel gear is positioned at each endpoint of each structure section, the corresponding baffle is positioned at the first position or the second position, so that when the rotating members rotate by an angle of a central angle corresponding to the structure section synchronously, the air outlets have an air outlet state, and further the air outlets have 2 N air outlet states.
9. A refrigerator characterized by comprising:
The refrigerator comprises a refrigerator body, a storage box and a control device, wherein a storage space is formed in the refrigerator body;
The air duct assembly is arranged on the box body and is provided with a plurality of cold air outlets; the plurality of cold air outlets are communicated with the storage space; and
The split air supply device of any one of claims 1 to 8, disposed within the duct assembly; each air supply outlet of the branch air supply device is communicated with one or more cold air outlets, and each cold air outlet is communicated with one air supply outlet, so that air flow entering the shell of the branch air supply device flows to the storage space through one or more air supply outlets of the branch air supply device.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711489269.0A CN108302876B (en) | 2017-12-29 | 2017-12-29 | Branching air supply device and refrigerator |
| PCT/CN2018/123924 WO2019129066A1 (en) | 2017-12-29 | 2018-12-26 | Branch air supply device and refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711489269.0A CN108302876B (en) | 2017-12-29 | 2017-12-29 | Branching air supply device and refrigerator |
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| Publication Number | Publication Date |
|---|---|
| CN108302876A CN108302876A (en) | 2018-07-20 |
| CN108302876B true CN108302876B (en) | 2019-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711489269.0A Active CN108302876B (en) | 2017-12-29 | 2017-12-29 | Branching air supply device and refrigerator |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN108302876B (en) |
| WO (1) | WO2019129066A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108302876B (en) * | 2017-12-29 | 2019-12-10 | 青岛海尔股份有限公司 | Branching air supply device and refrigerator |
| CN108332489A (en) * | 2017-12-29 | 2018-07-27 | 青岛海尔股份有限公司 | Branch air-supply arrangement and refrigerator |
| CN109737669B (en) * | 2018-12-26 | 2020-11-20 | 海尔智家股份有限公司 | Refrigerating and freezing device |
| CN111156758B (en) * | 2020-02-20 | 2021-07-27 | 海信（山东）冰箱有限公司 | A kind of refrigerator |
| CN114688805B (en) * | 2020-12-28 | 2023-10-24 | 贵州海尔电器有限公司 | Air supply device for refrigeration and freezing device and refrigeration and freezing device |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2019129066A1 (en) | 2019-07-04 |
| CN108302876A (en) | 2018-07-20 |
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