CN108253692B - Gear sensing device, branching air supply device and refrigerator - Google Patents

Gear sensing device, branching air supply device and refrigerator Download PDF

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Publication number
CN108253692B
CN108253692B CN201711480778.7A CN201711480778A CN108253692B CN 108253692 B CN108253692 B CN 108253692B CN 201711480778 A CN201711480778 A CN 201711480778A CN 108253692 B CN108253692 B CN 108253692B
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China
Prior art keywords
gear
air supply
air
rotating
rotating structure
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CN201711480778.7A
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Chinese (zh)
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CN108253692A (en
Inventor
费斌
程学丽
李登强
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Qingdao Haier Refrigerator Co Ltd
Haier Smart Home Co Ltd
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Qingdao Haier Co Ltd
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Priority to CN201711480778.7A priority Critical patent/CN108253692B/en
Publication of CN108253692A publication Critical patent/CN108253692A/en
Priority to PCT/CN2018/123928 priority patent/WO2019129069A1/en
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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
    • F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
    • F25D11/02—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures
    • 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
    • F25D17/042—Air treating means within refrigerated spaces
    • F25D17/045—Air flow control arrangements
    • 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
    • F25D29/00—Arrangement or mounting of control or safety devices
    • 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
    • F25D2323/00—General constructional features not provided for in other groups of this subclass
    • F25D2323/002—Details for cooling refrigerating machinery
    • F25D2323/0023—Control of the air flow cooling refrigerating machinery
    • 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
    • F25D2500/00—Problems to be solved
    • F25D2500/06—Stock management

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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 gear sensing device, a shunt air supply device and a refrigerator. Wherein, gear sensing device includes: the rotary structure is provided with a plurality of bosses which are sequentially arranged at intervals along the rotation direction of the rotary structure; and a switch assembly having a plurality of switches and a plurality of levers; one end of each lever is placed on the rotating structure so as to slide on the rotating structure when the rotating structure rotates, acts on the corresponding switch according to a first mode when moving to each boss, and acts on the corresponding switch according to a second mode when moving to the concave part on the outer side of each boss; and each switch has two states of opening and closing, the plurality of bosses and the plurality of levers are configured such that the plurality of switches have a plurality of opening and closing combination states, such that each opening and closing combination state reflects one gear. The gear sensing device can sense each state of the circumferentially running component so as to reflect the corresponding gear.

Description

Gear sensing device, branching air supply device and refrigerator
Technical Field
The invention relates to the field of refrigerator storage, in particular to a gear sensing device, a shunt 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.
However, in the design process of the present invention, it is found that neither the shunt air supply device in the prior art nor the newly designed shunt air supply device reflects the real-time air outlet status of the plurality of air outlets. Therefore, the invention also provides a gear sensing device which can reflect the air outlet states of the air outlets and the control state of the control knob, namely the gear sensing device can be applied to multiple fields. Specifically, the method comprises the following steps:
in one aspect, the present invention provides a gear sensing device, including:
the rotary structure is provided with a plurality of bosses which are sequentially arranged at intervals along the rotation direction of the rotary structure; and
a switch assembly having a plurality of switches and a plurality of levers; one end of each lever is placed on the rotating structure to slide on the rotating structure when the rotating structure rotates, so that the lever acts on the corresponding switch according to a first mode when moving to each boss, and acts on the corresponding switch according to a second mode when moving to a concave position outside each boss; one of the first mode and the second mode is to trigger the switch to turn on the switch, and the other mode is to disengage the switch to turn off the switch; and also
Each of the switches has both an open state and a closed state, and the plurality of bosses and the plurality of levers are arranged so that the plurality of switches have a plurality of opening and closing combination states, so that each opening and closing combination state reflects one gear.
Optionally, the number of the switches and the levers is three;
the plurality of bosses comprise three first bosses and one second boss which are sequentially arranged at intervals along the circumferential direction of the rotating structure; and is
The central angle corresponding to the circular arc between every two adjacent first bosses is a preset angle;
the central angles corresponding to the arcs between the first boss and the second boss adjacent to the second boss are two preset angles; and also
The rotating structure is provided with rotating positions enabling the three levers to be located on the three first bosses respectively, so that when the rotating structure rotates, the three switches have eight opening and closing combined states, and eight gears are reflected.
Optionally, a projection of each of the levers in a reference plane perpendicular to the axis of the rotating structure extends in a radial direction of the rotating structure, and
and the included angle between the projections of every two adjacent levers in the reference plane is one preset angle.
Optionally, the rotating structure is a gear adjusting ring; the switch assembly is arranged on the inner side of the gear adjusting ring.
Optionally, the gear sensing device further comprises:
the device comprises a base, wherein a plurality of first gear indicating marks arranged at intervals along the circumferential direction of the base are arranged on the base; the rotating structure and the switch assembly are mounted on the base; and
the knob cover is provided with a second gear indicating mark and connected with the rotating structure so as to drive the rotating structure to rotate to a position where the second gear indicating mark is aligned with the first gear indicating mark, and therefore the gear sensing device receives input gear information.
Optionally, the base includes a substrate and an accommodating cavity disposed in the middle of the substrate;
the rotating structure and the switch assembly are arranged in the accommodating cavity;
the knob cover is clamped in the accommodating cavity in the axial direction of the substrate;
the first gear indicating marks are arranged on the substrate and are positioned on the radial outer side of the accommodating cavity.
Optionally, the rotary structure is configured to be mounted to the rotor so as to rotate with the rotor and to reflect a gear of the rotor when the rotor stops rotating.
Optionally, the rotating body is an output shaft of a stepping motor; or the rotating body is connected to the output shaft of the stepping motor through a transmission mechanism.
In another aspect, the present invention further provides a branching air supply device for a refrigerator, including:
a casing having a plurality of air supply ports;
the adjusting device is arranged on the shell and is configured to enable each air supply outlet to have at least two air outlet states of opening and closing so as to enable the air supply outlets to have a plurality of air outlet combination states;
a drive transmission device which is arranged on the shell and is provided with a rotating body; the driving transmission device is connected with the adjusting device so as to enable the adjusting device to act and adjust the air outlet area of each air supply outlet; and
any one of above-mentioned gear perception device, gear perception device's revolution mechanic install in on drive transmission's the rotor, or revolution mechanic with rotor integrated into one piece, or revolution mechanic pass through drive mechanism connect in the rotor to rotate and make every kind of switching composite state that gear perception device has reacts an air-out composite state.
In still another aspect, the present invention also provides a refrigerator, including:
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 gear sensing device can sense each state of the circumferentially running component to reflect the corresponding gear, so that the control device or the display device can acquire the states of the circumferentially running component and the related components and then perform corresponding operation. And the gear sensing device can also sense gear information input by a user, so that a controlled device such as a refrigerator can work according to the gear information input by the user, and the gear sensing device can be used as a control knob.
Furthermore, because the shunting air supply device and the refrigerator are provided with the rotating bodies and the gear sensing devices, the air outlet state, such as the opening and closing state, of each air supply outlet can be conveniently and quickly reflected, and the shunting air supply device is convenient to control, so that the control is simple and more accurate.
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 block diagram of a gear sensing device according to one embodiment of the present invention;
FIG. 2 is a schematic exploded view of the gear sensing device shown in FIG. 1;
FIG. 3 is a schematic exploded view of another perspective of the gear sensing device shown in FIG. 1;
FIG. 4 is a schematic block diagram of a rotary structure in the shift position sensing device according to an embodiment of the present invention;
FIG. 5 is a schematic block diagram of a switch assembly in the gear sensing device according to one embodiment of the present invention;
FIG. 6 is a schematic configuration diagram of a branching air-blowing device according to an embodiment of the present invention;
FIG. 7 is a schematic exploded view of a split blower arrangement according to one embodiment of the present invention;
FIG. 8 is a schematic exploded view of another perspective of a bifurcated blower device according to one embodiment of the present invention;
fig. 9 to 16 are schematic structural diagrams respectively illustrating a plurality of outlet air combination states in the branching air supply device according to the embodiment of the invention.
Detailed Description
Fig. 1 is a schematic configuration diagram of a shift position sensing device according to an embodiment of the present invention. As shown in fig. 1, and with reference to fig. 2-5, an embodiment of the present invention provides a gear sensing device 480 that may include a rotating structure 486 and a switch assembly 481. The rotating structure 486 is provided with a plurality of bosses 482, and the plurality of bosses 482 are sequentially spaced apart in a direction of rotation of the rotating structure 486. The switch assembly 481 may have a plurality of switches 483 and a plurality of levers 484. One end of each lever 484 is positioned on the rotating structure 486 to slide on the rotating structure 486 as the rotating structure 486 rotates to act on a respective switch 483 in a first manner when moving onto each boss 482 and to act on a respective switch 483 in a second manner when moving into a recess outside each boss 482. One of the first mode and the second mode is to activate the switch 483 to open the switch 483, and the other is to disengage the switch 483 to close the switch 483. That is, switches 483 may be opened or closed by levers 484 and bosses 482, that is, each switch 483 has two states of open and closed, and since different switches 483 are simultaneously open, simultaneously closed, partially open, partially closed, etc., the plurality of bosses 482 and the plurality of levers 484 are configured so that the plurality of switches 483 have a plurality of opening and closing combination states. Further, each opening and closing combination state may be made to react to one gear.
The gear sensing device 480 of the embodiment of the present invention can be applied to an active rotating member, for example, when a gear is driven by a motor to rotate, the rotating structure 486 can be disposed on the gear, when the gear is stopped, the positions between the plurality of bosses 482 and the plurality of levers 484 are determined, and the relationship between the plurality of levers 484 and the plurality of switches 483 is also determined, so as to obtain an opening and closing combination state, after obtaining the opening and closing combination state, the control device can obtain the gear state of the gear, and the control device can display the gear state, or perform the next operation according to the gear state. Moreover, the gear sensing device 480 according to the embodiment of the present invention may be applied to a passive rotating member, such as a knob, a user operates the knob to select a gear to be used, such as a refrigerator cooling gear, an air conditioner cooling gear, a fan rotating gear, etc., the rotating structure 486 may be disposed on the knob cover, when the knob cover is stopped, the positions between the plurality of bosses 482 and the plurality of levers 484 are determined, the relationship between the plurality of levers 484 and the plurality of switches 483 is determined, an open/close combination state may be obtained, after the control device obtains the open/close combination state, the gear state of the knob cover may be obtained, and the control device may perform a next operation according to the gear state.
In some particular embodiments of the invention, switch 483 and lever 484 are three in number. The plurality of bosses 482 includes three first bosses and one second boss that are sequentially spaced apart in a circumferential direction of the rotating structure 486. And the central angle corresponding to the circular arc between every two adjacent first bosses is a preset angle. The central angles corresponding to the arcs between the first bosses adjacent to the second bosses are two preset angles, so that the arc length of the arcs between the first bosses adjacent to the second bosses and the second bosses adjacent to the second bosses is 2 times of the arc length of the arcs between every two adjacent first bosses. Furthermore, rotating structure 486 has rotating positions that allow three levers 484 to be simultaneously located on three first bosses, respectively, so that rotating structure 486 causes three switches 483 to have eight open and closed combination states, thereby reflecting eight shift positions. In operation, the rotating structure 486 can rotate a predetermined angle or an integer multiple of the predetermined angle each time.
Further, the projection of each lever 484 in a reference plane perpendicular to the axis of the rotating structure 486 extends in a radial direction of the rotating structure 486, and the angle between the projections of each two adjacent levers 484 in the reference plane is a predetermined angle. Rotating structure 486 is a gear adjusting ring; switch 483 assembly 481 is disposed inside of the range adjustment ring.
In some embodiments of the present invention, the gear sensing device 480 may be a knob. Specifically, gear sensing device 480 may also include a base 487 and a knob cover 488. The pedestal 487 is provided with a plurality of first gear indication marks arranged at intervals in the circumferential direction of the pedestal 487. A rotating structure 486 and a switch 483 assembly 481 are mounted to base 487. The knob cover 488 is provided with a second gear indication mark, and the knob cover 488 is connected to the rotating structure 486 to drive the rotating structure 486 to rotate to a position where the second gear indication mark is aligned with one first gear indication mark, so that the gear sensing device 480 receives the input gear information.
Further, the susceptor 487 includes a substrate and a receiving cavity disposed in the middle of the substrate. A rotating structure 486 and a switch 483 assembly 481 are mounted within the containment cavity. The knob cover 488 is clamped in the accommodating cavity in the axial direction of the substrate. A plurality of first gear indicator sets up on the base plate and is in and holds the radial outside of cavity.
In other embodiments of the present invention, the rotating structure 486 is configured to be mounted to the rotor for rotation therewith and to react to a gear of the rotor when the rotor stops rotating. The rotating body is an output shaft of the stepping motor; or the rotating body is connected to the output shaft of the stepping motor through a transmission mechanism. Of course, the rotator may have other structures, such as the rotator in the shunt air supply device in the following embodiments.
Fig. 6 is a schematic configuration diagram of a branching air-blowing device according to an embodiment of the present invention. As shown in fig. 6, and referring to fig. 7 to 16, an embodiment of the present invention provides a branching blowing device 400 for a refrigerator.
The shunting air supply device 400 may include a housing, an adjusting device, a driving transmission device, and a gear sensing device 480 in some embodiments described above. The casing may have 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 sequentially provided at intervals in the circumferential direction of the casing. The blowing port 411 may be a blowing passage having a certain length. Further, the housing may also include structures disposed at both ends of the peripheral wall portion 412. The adjusting device is mounted on the housing and configured to enable each air supply opening 411 to have at least two air outlet states of opening and closing, so that the air supply openings 411 have a plurality of air outlet combination states. The drive transmission device is mounted on the housing and has a rotor. The driving transmission device is connected with the adjusting device so as to enable the adjusting device to act and adjust the air outlet area of each air supply outlet. The rotating structure 486 of the gear sensing device 480 is mounted on the rotor of the driving transmission device, or the rotating structure 486 and the rotor are integrally formed, or the rotating structure 486 is connected to the rotor through the transmission mechanism to rotate, so that each opening and closing combination state of the gear sensing device 480 reflects an air outlet combination state.
In some embodiments of the invention, the adjustment device may be a plurality of baffles 420. Each baffle 420 is rotatably installed at one air supply outlet 411 to rotate to different rotation positions to adjust the air outlet area of the corresponding air supply outlet 411, for example, the corresponding air supply outlet 411 can be opened or closed to realize complete air outlet and zero air outlet.
The drive transmission may include a plurality of transmission assemblies and a drive device. Each drive assembly may be mounted to the housing in communication with a respective one of the baffles 420. The driving device may be mounted to the housing and may have a driving source 450 and a first transmission mechanism configured to transmit one motion output from the driving source 450 to a plurality of transmission assemblies such that each of the transmission assemblies causes a corresponding one of the shutters to be stationary or to rotate.
In some further embodiments of the present invention, each transmission assembly may have a rotating member 430 and a second transmission mechanism. The rotating member 430 may be in the form of a rotating disk or an annular disk. Each of the second transmission mechanisms is configured to transmit the rotational motion of the corresponding rotational member 430 to one of the barrier plates 420 so that the barrier plate 420 is stationary or rotates. That is, during the rotation of the rotating member 430, the second transmission mechanism can drive the baffle 420 to rotate, and can also keep the baffle 420 still. In alternative embodiments, the transmission assembly may take on other configurations or arrangements.
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, so that various air outlet combination states can be realized, the opening and closing of the air outlet duct communicated with each air supply outlet 411 can be controlled and/or the air outlet volume in each air outlet duct can be adjusted, and the cold quantity requirements of different storage compartments can be further met, 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 can be further met. In operation, the driving source 450 drives the plurality of rotating members 430 to rotate through the first transmission mechanism, and each rotating member 430 drives the corresponding baffle 420 to turn over through the second transmission mechanism during rotation, so as to open or close or adjust the corresponding air supply opening 411. Further, the second transmission mechanism can turn over or keep the baffle 420 still, so that the plurality of air supply outlets 411 can realize various air outlet combination states, for example, an air outlet combination state that one air supply outlet 411 is closed, the other air supply outlet 411 is opened, two air supply outlets 411 are simultaneously closed, 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 also convenient, and the reasonable arrangement of the air channel in the refrigerator is convenient.
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 further comprises a damper bottom cover 413, a base 414, and a damper top cover 415. 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 the 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 a wall of the blower outlet 411 extending from the peripheral wall in the radial direction of the housing. The wall of the supply air outlet 411 may have a notch for mounting the baffle 420 at a position adjacent to the base 414. 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. The damper top cover 415 is provided at one end of the peripheral wall portion 412 away from the base 414; and an air inlet is provided in the peripheral wall portion 412 or the damper top cover 415. Preferably, an air inlet is formed at the damper top cover 415. In some alternative embodiments of the invention, the housing may also include a base 414 and a damper top cover 415, not including the damper bottom cover 413. A plurality of rotating members 430 are mounted on the inner surface of the base 414.
In some embodiments of the present invention, a cam sliding groove is formed on one side surface of each of the rotation members 430. For example, a cam slot is formed on the side of each rotating member 430 facing away from the base 414. Each second transmission mechanism comprises 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 chamber provided on the housing at one side of the corresponding air blowing port 411. The transmission 442 has an insertion portion inserted into the corresponding cam sliding groove to be stationary or to move in a radial direction of the corresponding rotation member 430 when the corresponding rotation member 430 rotates; and the transmission means 442 also has first teeth engaged with the corresponding first gear 441 to rotate the corresponding blocking plate 420 while moving in the radial direction of the corresponding rotation member 430. Each rotating member 430 and the corresponding first gear 441 are located on the same side of the corresponding transmission 442, so that the space in the housing can be fully utilized, and the branched air supply device 400 is compact.
In some preferred embodiments of the present invention, each of the actuators 442 includes a slide bar, a slider, and an elastic element. One end of the slider is provided with first teeth, and one side of the slider facing the corresponding rotation member 430 has a groove. The slider is mounted in the groove and has an insertion portion. The elastic element is arranged between the sliding block and one side wall of the groove, which is perpendicular to the length direction of the sliding strip. When the elastic element is a compression spring, it may be at an end of the slider remote from the first gear 441. When the elastic element is a tension spring, it may be at an end of the slider close to the first gear 441. The arrangement enables the teeth on the first gear 441 and the teeth on the sliding bar to be tightly matched without tooth gaps, so that the baffle 420 and the like can rotate stably. In some alternative embodiments of the present invention, the transmission 442 may be a rack, and an end of the rack away from the baffle 420 may be provided with an insertion portion, which is a protrusion. In some embodiments of the present invention, the first gear 441 is an all-gear or a non-all-gear. Because each transmission device in the branching air supply device is provided with the sliding strip, the sliding block and the elastic element, the position of the sliding block can be adjusted by the elastic element, so that the sliding block is always in a stable state, the transmission between the sliding strip and the first gear is more stable, the overturning of the baffle plate is more stable, the adjustment is accurate, and the noise is low.
In some embodiments of the present invention, the first transmission mechanism includes a second gear, which may be an external gear, an external ring gear, or an internal ring gear, installed between the base 414 and the damper bottom cover 413. Each of the rotation members 430 is provided with a plurality of second teeth. The second gear is directly or indirectly connected to the driving source 450 and is engaged with the second 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, i.e., each of the rotation members 430 may correspond to a gear. Further, the driving source 450 is a motor; the first transmission mechanism further comprises a third gear mounted on the output shaft of the motor; and the third gear is engaged with the second gear. The peripheral wall portion 412 is provided with a housing portion 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 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 and the second gear are coaxially arranged and synchronously rotate. In other alternative embodiments, the second gear 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 make the branch air supply device 400 directly applied to the refrigerator cooling chamber outlet air, the branch air supply device 400 further includes an air supply device 470 disposed in the casing and configured to promote the air flow into the casing and out of the casing through one or more of the plurality of air supply openings 411. Preferably, the air supply device 470 is a centrifugal impeller configured to promote air flow into the housing from the axial direction of the housing. When the shunting air supply device 400 is applied to air outlet of the cooling chamber, axial air inlet and radial air outlet can be conveniently realized, and the air outlet is guided in a vertical plane. The branch air supply device is 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.
In particular, in some embodiments of the present invention, in order to make the structure of the branched blowing device 400 more compact, simpler and less error, the rotating body 460 is preferably the second gear. In some alternative embodiments of the present invention, the rotating body 460 may also be a dedicated gear engaged with the second gear to be exclusively used for the detection of the gear sensing device 480. Furthermore, a plurality of lamps with different colors can be externally connected to the gear position sensing device 480, when the baffle 420 of the corresponding air supply outlet 411 is opened, the corresponding lever 484 triggers the switch 483 to be opened, and at this time, the corresponding lamp is turned on.
In some embodiments of the present invention, it is preferable that each of the dampers 420 has at least two states of opening and closing the corresponding blower port 411. And, the plurality of rotating members 430 are identical in sizeEtc. and rotate synchronously. The number of the blowing ports 411 may be N, where N is a natural number equal to or greater than 2. In order to make the plurality of blowing openings 411 have 2NIn a combined state of air-out, i.e. a plurality of air-supply outlets 411 having 2NThe air outlet combination state is that the preset number is 2N. Each cam runner includes at least 2N1 chute section, with an insert at each end of each chute section, having a respective flap 420 closing a respective supply air opening 411 or fully opening a respective supply air opening 411. When the plurality of rotating members 430 are arranged to rotate at the angle of the central angle corresponding to the sliding groove section in each synchronous rotation, the plurality of air supply outlets 411 have an air outlet combination state, and further the plurality of air supply outlets 411 have 2NThe air outlet combination state is planted.
Further, when each of the rotation members 430 rotates by an angle corresponding to a central angle of one of the chute sections, the rotation member 460 rotates by a corresponding predetermined angle, and the plurality of bosses 482 and the plurality of levers 484 are configured to allow the plurality of switches 483 to be in a control combination state, so that the plurality of switches 483 have 2NAnd controlling the combination state.
For example, in some specific embodiments of the present invention, as shown in fig. 9 to 16, the number of the blowing ports 411 may be three, and the first port, the second port, and the third port are sequentially arranged in the circumferential direction of the casing, so that the corresponding cam chutes may be the first cam chute, the second cam chute, and the third cam chute, the corresponding baffle 420 may be the first baffle 421, the second baffle 422, and the third baffle 423, and have eight air outlet combination states, and each cam chute may have eight chute sections. The number of switches 483 and levers 484 is 3 each. Further, the corresponding rotation angle of seven chute sections, e.g., each cam chute, may be 360 °, or less than 360 °, e.g., 320 °, 300 °, etc. When the seven chute sections of the cam chute correspond to a rotation angle of 360 °, the central angle of each chute section is about 51 °. The second gear is an outer ring gear, the gear ratio of the second gear to each of the rotation members 430 may be 136/45, and the preset angle may be 17 °.
As shown in fig. 9, the first port, the second port, and the third port can each be in a closed state, and the beginning of the first chute section of each cam chute can cause the respective flapper 420 to be in a closed state. Three levers 484 may be disengaged from all 4 bosses 482, allowing all corresponding switches 483 to be closed, and communicating that all three ports are closed.
As shown in fig. 10, the first port and the third port may be in a closed state, the second port may be in an open state, the end of the first chute section of the second cam chute (i.e. the beginning of the second chute section) may enable the corresponding baffle 420 to be in an open state, and then the two ends of the first chute section of the second cam chute have a distance difference along the radial direction of the rotating member 430, so that the first chute section of the second cam chute is in a non-circular arc shape, and the baffle 420 is driven to rotate to the open state in the process of rotating the corresponding rotating member 430; the ends of the first chute sections of the first cam chute and the third cam chute (i.e. the beginning of the second chute section) can make the corresponding baffle 420 in a closed state, and then the first chute sections of the second cam chute and the third cam chute can be both arc-shaped, and the baffle 420 cannot be driven to rotate in the process of rotating the corresponding rotating member 430. One lever can be attached to the first boss to enable the corresponding switch to be turned on, the other two levers are completely separated from the boss to enable the corresponding switch to be in a turned-off state, the transmitted information is that the first port and the third port are in a turned-off state, and the second port is in a turned-on state.
As shown in fig. 11, the third port may be in a closed state, the first port and the second port may be in an open state, and the end of the second chute section of the first cam chute (i.e., the beginning of the third chute section) may enable the corresponding baffle 420 to be in an open state, so that the two ends of the second chute section of the first cam chute have a distance difference along the radial direction of the rotating member 430, so as to enable the second chute section of the first cam chute to be in a non-circular arc shape, thereby driving the baffle 420 to rotate to the open state during the rotation of the corresponding rotating member 430; the ends of the second slot segments of the second cam slot and the third cam slot (i.e., the beginning of the third slot segment) can make the corresponding baffle 420 in the corresponding open and closed states, respectively, so that the second slot segments of the second cam slot and the third cam slot can be both arc-shaped, and the baffle 420 is not driven to rotate during the rotation of the corresponding rotating member 430. Two levers 484 may be attached to the first two bosses to open the corresponding switch 483, and the other lever 484 may be separated from the bosses to close the corresponding switch 483 and transmit information that the third port is closed and the first and second ports are open.
As shown in fig. 12, the second port and the third port may be in a closed state, the first port may be in an open state, the end of the third chute section of the second cam chute (i.e., the beginning of the fourth chute section) may enable the corresponding baffle 420 to be in a closed state, and the two ends of the third chute section of the first cam chute have a distance difference along the radial direction of the rotating member 430, so that the third chute section of the first cam chute is in a non-circular arc shape, and the baffle 420 is driven to rotate to the closed state during the rotation of the corresponding rotating member 430. The end of the third slot segment of the first cam slot (i.e., the beginning of the fourth slot segment) can open the corresponding shutter 420, and the third slot segment of the first cam slot can be arc-shaped, so that the shutter 420 is not driven to rotate during the rotation of the corresponding rotating member 430. The end of the third slot segment of the third cam slot (i.e., the beginning of the fourth slot segment) can make the corresponding stop plate 420 in the closed state, and the third slot segment of the third cam slot can be arc-shaped, so that the stop plate 420 is not driven to rotate during the rotation of the corresponding rotating member 430. The three levers 484 may engage with the three first bosses to actuate the corresponding switches 483 and transmit information that the second port and the third port are closed and the first port is open.
As shown in fig. 13, the first port and the third port may be in an open state, the second port may be in a closed state, the end of the fourth chute section of the first cam chute (i.e., the beginning of the fifth chute section) may enable the corresponding baffle 420 to be in an open state, and the fourth chute section of the first cam chute may be in a circular arc shape, so that the baffle 420 is not driven to rotate during the rotation of the corresponding rotating member 430. The end of the fourth slot segment of the second cam slot (i.e., the beginning of the fifth slot segment) can open the corresponding shutter 420, and the fourth slot segment of the second cam slot can be arc-shaped, so that the shutter 420 is not driven to rotate during the rotation of the corresponding rotating member 430. The end of the fourth slot segment of the third cam slot (i.e. the beginning of the fifth slot segment) can make the corresponding baffle 420 in the open state, and the two ends of the fourth slot segment of the third cam slot have a distance difference along the radial direction of the rotating member 430, so that the fourth slot segment of the first cam slot is in the non-circular arc shape, and the baffle 420 is driven to rotate to the open state in the process of rotating the corresponding rotating member 430. The rear two levers 484 may be attached to the first two bosses to open the corresponding switch 483, and the first levers 484 may be completely separated from the bosses to close the corresponding switch 483, and transmit information that the first port and the third port are open and the second port is closed.
As shown in fig. 14, 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 fifth chute section of the first cam chute (i.e., the beginning of the sixth chute section) may enable the corresponding baffle 420 to be in a closed state, and a distance difference exists between the two ends of the fifth chute section of the first cam chute along the radial direction of the rotating member 430, so that the fifth chute section of the first cam chute is in a non-circular arc shape, and the baffle 420 is driven to rotate to the closed state during the rotation of the corresponding rotating member 430. The ends of the fifth chute sections of the second cam chute and the third cam chute (i.e. the beginning of the sixth chute section) can make the corresponding baffle 420 in the corresponding closed state and the corresponding open state, respectively, and then the fifth chute sections of the second cam chute and the third cam chute can be arc-shaped, and the baffle 420 cannot be driven to rotate in the process of rotating the corresponding rotating member 430. The last lever 484 may engage the first boss to cause the corresponding switch 483 to open, the middle lever 484 may be fully separated from the bosses to cause the corresponding switch 483 to be in the closed state, the first lever 484 may engage the second boss to cause the corresponding switch 483 to open, and the transmitted information is that the third port is in the open state and the first and second ports are in the closed state.
As shown in fig. 15, the second port and the third port may be in an open state, the first port may be in a closed state, the end of the sixth chute section of the second cam chute (i.e., the beginning of the seventh chute section) may enable the corresponding baffle 420 to be in an open state, and then the two ends of the sixth chute section of the second cam chute have a distance difference along the radial direction of the rotating member 430, so that the sixth chute section of the second cam chute is in a non-circular arc shape, and the baffle 420 is driven to rotate to the open state during the rotation of the corresponding rotating member 430. The ends of the sixth chute sections of the first cam chute and the third cam chute (i.e. the beginning of the seventh chute section) can make the corresponding baffle 420 in the corresponding closed state and the corresponding open state, respectively, and then the sixth chute sections of the first cam chute and the third cam chute can be arc-shaped, and the baffle 420 cannot be driven to rotate in the process of rotating the corresponding rotating member 430. The middle lever 484 can be attached to the second boss to enable the corresponding switch 483 to be turned on, the rest levers 484 are completely separated from the bosses, the corresponding switch 483 can be in a closed state, the transmitted information is that the second port and the third port are in an open state, and the first port is in a closed state.
As shown in fig. 16, the first port, the second port and the third port may be in an open state, the end of the seventh chute section of the first cam chute may enable the corresponding baffle 420 to be in the open state, and a distance difference exists between two ends of the seventh chute section of the first cam chute in the radial direction of the rotating member 430, so that the seventh chute section of the first cam chute is in a non-circular arc shape, and the baffle 420 is driven to rotate to the open state in the process of rotating the corresponding rotating member 430. The ends of the seventh chute sections of the second cam chute and the third cam chute can make the corresponding baffle 420 in an open state, and the seventh chute sections of the second cam chute and the third cam chute can be arc-shaped, so that the baffle 420 cannot be driven to rotate in the rotating process of the corresponding rotating member 430. The last lever 484 may engage the second boss, causing the corresponding switch 483 to open, and the remaining levers 484 may be fully disengaged from the bosses, causing the corresponding switch 483 to be in a closed state, and transmitting information that the first port, the second port, and the third port may all be in an open state.
In some other embodiments of the present invention, the first cam slot, the second cam slot and the third cam slot may be combined with other slot segments, so as to realize the 2 of the plurality of air outlets 411NThe air outlet combination state is just the same.
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, an air duct assembly and the branched air supply device 400 of any of the above embodiments disposed in the air duct assembly are also disposed in the refrigerator. The air duct assembly is arranged on the box body and is provided with a plurality of cold 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 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 can be provided with an installation cavity and a plurality of cold air outlets, and each cold air outlet is communicated with one storage room directly or through other pipelines. The air duct assembly is arranged on the front side of the cooling chamber, and the mounting cavity faces to an 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 is an upper air outlet located at the upper part of the housing, a left air outlet located at the left side of the housing, and a right air outlet located at the right side of the housing. 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 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 duct assembly may be provided with a bypass blower 400 or an inline bypass blower or other type of bypass blower. 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 branching blowing device can be 3, such as a first blowing port, a second blowing port and a third blowing port; the number of the air outlet channels can be 3, such as a first air channel communicated with the first air supply outlet, a second air channel communicated with the second air supply outlet, and a third air channel communicated with the third air supply outlet. 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. In alternative embodiments of the present invention, other configurations of the inline split blower arrangement are possible. For example, each flap is individually controlled using one motor.
The branching air supply device 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 (10)

1. A gear sensing device, comprising:
the rotary structure is provided with a plurality of bosses which are sequentially arranged at intervals along the rotation direction of the rotary structure; and
a switch assembly having a plurality of switches and a plurality of levers; one end of each lever is placed on the rotating structure to slide on the rotating structure when the rotating structure rotates, so that the lever acts on the corresponding switch according to a first mode when moving to each boss, and acts on the corresponding switch according to a second mode when moving to a concave position outside each boss; one of the first mode and the second mode is to trigger the switch to turn on the switch, and the other mode is to disengage the switch to turn off the switch; and also
Each of the switches has both an open state and a closed state, and the plurality of bosses and the plurality of levers are arranged so that the plurality of switches have a plurality of opening and closing combination states, so that each opening and closing combination state reflects one gear.
2. Gear sensing device according to claim 1,
the number of the switches and the number of the levers are three;
the plurality of bosses comprise three first bosses and one second boss which are sequentially arranged at intervals along the circumferential direction of the rotating structure; and is
The central angle corresponding to the circular arc between every two adjacent first bosses is a preset angle;
the central angles corresponding to the arcs between the first boss and the second boss adjacent to the second boss are two preset angles; and also
The rotating structure is provided with rotating positions enabling the three levers to be located on the three first bosses respectively, so that when the rotating structure rotates, the three switches have eight opening and closing combined states, and eight gears are reflected.
3. Gear sensing device according to claim 2,
the projection of each lever in a reference plane perpendicular to the axis of the rotating structure extends in the radial direction of the rotating structure, and
and the included angle between the projections of every two adjacent levers in the reference plane is one preset angle.
4. Gear sensing device according to claim 1,
the rotating structure is a gear adjusting ring; the switch assembly is arranged on the inner side of the gear adjusting ring.
5. The gear sensing device according to claim 1, further comprising:
the device comprises a base, wherein a plurality of first gear indicating marks arranged at intervals along the circumferential direction of the base are arranged on the base; the rotating structure and the switch assembly are mounted on the base; and
the knob cover is provided with a second gear indicating mark and connected with the rotating structure so as to drive the rotating structure to rotate to a position where the second gear indicating mark is aligned with the first gear indicating mark, and therefore the gear sensing device receives input gear information.
6. Gear sensing device according to claim 5,
the base comprises a substrate and an accommodating cavity arranged in the middle of the substrate;
the rotating structure and the switch assembly are arranged in the accommodating cavity;
the knob cover is clamped in the accommodating cavity in the axial direction of the substrate;
the first gear indicating marks are arranged on the substrate and are positioned on the radial outer side of the accommodating cavity.
7. Gear sensing device according to claim 1,
the rotary structure is configured to be installed on the rotating body so as to rotate along with the rotating body, and the gear of the rotating body is reflected when the rotating body stops rotating.
8. Gear sensing device according to claim 7,
the rotating body is an output shaft of the stepping motor; or the rotating body is connected to the output shaft of the stepping motor through a transmission mechanism.
9. A split air supply apparatus for a refrigerator, comprising:
a casing having a plurality of air supply ports;
the adjusting device is arranged on the shell and is configured to enable each air supply outlet to have at least two air outlet states of opening and closing so as to enable the air supply outlets to have a plurality of air outlet combination states;
a drive transmission device which is arranged on the shell and is provided with a rotating body; the driving transmission device is connected with the adjusting device so as to enable the adjusting device to act and adjust the air outlet area of each air supply outlet; and the gear sensing device according to any one of claims 1 to 4, wherein a rotating structure of the gear sensing device is mounted on a rotating body of the driving transmission device, or the rotating structure is integrally formed with the rotating body, or the rotating structure is connected to the rotating body through a transmission mechanism so as to rotate, so that each opening and closing combination state of the gear sensing device reflects an air outlet combination state.
10. 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 arrangement of claim 9, 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.
CN201711480778.7A 2017-12-29 2017-12-29 Gear sensing device, branching air supply device and refrigerator Active CN108253692B (en)

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PCT/CN2018/123928 WO2019129069A1 (en) 2017-12-29 2018-12-26 Configuration sensing device, multiway air distribution device and refrigerator

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Address after: 266101 Haier Industrial Park, Haier Road, Laoshan District, Shandong, Qingdao, China

Patentee after: Haier Smart Home Co., Ltd.

Address before: 266101 Haier Industrial Park, Haier Road, Laoshan District, Shandong, Qingdao, China

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Effective date of registration: 20200917

Address after: 266101 Haier Industrial Park, Haier Road, Laoshan District, Shandong, Qingdao, China

Patentee after: QINGDAO HAIER REFRIGERATOR Co.,Ltd.

Patentee after: Haier Smart Home Co., Ltd.

Address before: 266101 Haier Industrial Park, Haier Road, Laoshan District, Shandong, Qingdao, China

Patentee before: Haier Smart Home Co., Ltd.

TR01 Transfer of patent right