CN106568291A - Lifting synchronization system of refrigerator rack - Google Patents
Lifting synchronization system of refrigerator rack Download PDFInfo
- Publication number
- CN106568291A CN106568291A CN201610990482.9A CN201610990482A CN106568291A CN 106568291 A CN106568291 A CN 106568291A CN 201610990482 A CN201610990482 A CN 201610990482A CN 106568291 A CN106568291 A CN 106568291A
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- CN
- China
- Prior art keywords
- motor
- controller
- rack
- synchronization system
- connector
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- 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
- F25D25/00—Charging, supporting, and discharging the articles to be cooled
- F25D25/02—Charging, supporting, and discharging the articles to be cooled by shelves
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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
- F25D29/00—Arrangement or mounting of control or safety devices
- F25D29/005—Mounting of control devices
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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
- F25D2201/00—Insulation
- F25D2201/10—Insulation with respect to heat
-
- 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
- F25D2201/00—Insulation
- F25D2201/30—Insulation with respect to sound
-
- 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
Landscapes
- 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)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The invention provides a lifting synchronization system of a refrigerator rack. The system comprises a controller, a rack body and at least two lifting mechanisms; the lifting mechanisms include motors, transmission screw rods, guide rods provided with top limiting devices and bottom limiting devices, and connecting pieces provided with slide nuts; the slide nuts are lifted to drive the connecting pieces the rack body to move along the guide rods; when the connecting pieces touch the top limiting devices or the bottom limiting devices, the top limiting devices or the bottom limiting devices return position signals of the connecting pieces to the controller; and the controller is set to control a motor to stop operating according to the position signals returned by the top limiting devices or the bottom limiting devices. Compared with the prior art, the limiting devices are arranged in the lifting travel limiting devices of the rack; and the limiting devices can judge the position state of the rack, and return the position state signals to the controller for logic analysis to control the motor to stop operating so as to prevent the locked-rotor heating of the motor and the noise.
Description
Technical field
The invention belongs to household electrical appliance technical field, more particularly to a kind of lifting synchronization system of refrigerator rack.
Background technology
At present, the refrigeration chamber in refrigerator is typically provided with least one is used for the rack of placing objects, in refrigerator system
The gallbladder muscle for supporting rack is provided with the wall of inner container of cold compartment, rack is placed on gallbladder muscle, so as to by refrigeration compartment
It is separated into some material-putting spaces.
With electric up-down rack is arranged in the development of technology, refrigerator, its Main Function is different in order to meet storage
The food materials of volume, without the need for dismantling rack, can lift user's body in the height in effective range between motorized adjustment rack
Test sense.But this electric up-down rack occurs problems with during use：When rack is rising to highest
When putting or dropping to minimum point, rack is limited by lifting travel, and motor is forced stall, is had noise during motor rotation blockage and is sent out
Heat problem.
The content of the invention
It is an object of the invention to provide a kind of lifting synchronization system of the refrigerator rack of effectively solving the problems referred to above.
For achieving the above object, the present invention provides a kind of lifting synchronization system of refrigerator rack,
It includes：Controller, rack body and at least two elevating mechanisms, the elevating mechanism includes：
Motor, is provided with sensor in the motor, the motor and sensor are electrically connected with the controller；
Drive screw, operates with the motor connection and by the Motor drive；
Guide post, be arranged in parallel with the drive screw, and the guide post is provided with the top being electrically connected with the controller
Stopping means and bottom limiting device；
Connector, fixes with the rack body, and the connector is provided with the sliding nut being adapted to the drive screw,
After the completion of the rack body with elevating mechanism assembling, the connector is slidably sheathed on the guide post,
The sliding nut is sheathed on drive screw, and drive screw described in the Motor drive rotates to drive the sliding nut liter
Drop so as to drive the connector and rack body to move along the guide post；
When the connector is when the upper limit device or bottom limiting device is touched during movement, the top limit
Position device or bottom limiting device feed back the position signalling of the connector to the controller, and the controller is arranged to root
It is out of service that the position signalling fed back according to the upper limit device or bottom limiting device controls the motor.
As a further improvement on the present invention, rotor is provided with the motor, the controller is also configured to according to every
The rotating speed and step number signal of the corresponding motor of the individual sensor feedback controls the rotating speed and step number of each motor and gradually tends to same
Step.
As a further improvement on the present invention, rotor is provided with the motor, the rotor is connected with the drive screw.
As a further improvement on the present invention, the rotor is provided with magnetic gear, the magnetic gear and the rotor
The gear rotational speed for sensing is converted to the signal of telecommunication and feeds back to the controller by run-in synchronism, the sensor.
As a further improvement on the present invention, the magnetic gear includes magnetic tooth boss and non magnetic groove.
As a further improvement on the present invention, the opposite sides of the rack body is provided with support member, the rack
Body is fixedly connected by the support member with the connector.
As a further improvement on the present invention, two elevating mechanisms are arranged on the both sides of inner container of icebox rear wall.
As a further improvement on the present invention, the sensor is Hall element.
As a further improvement on the present invention, be integrated with memory element on the controller, when rack be elevated to it is any
When one position occurs power-off, the motor operation step number that the controller senses the sensor is stored to memory element.
As a further improvement on the present invention, the memory element is EPROM or EEPROM.
The invention has the beneficial effects as follows：In the restriction site of rack lifting travel, stopping means, the stopping means are set
May determine that the location status of rack, and position state signal is fed back to into controller carries out logical analyses, so as to control electricity
Machine is out of service, prevents motor rotation blockage heating and the generation of noise.
Description of the drawings
Fig. 1 is the lifting synchronous system architecture schematic diagram of refrigerator rack in the embodiment of the invention；
In Fig. 2 embodiment of the invention under another angle refrigerator rack lifting synchronous system architecture schematic diagram；
Rotor, magnetic gear and sensor interaction principle schematic diagram in Fig. 3 embodiment of the invention.
Specific embodiment
Describe the present invention below with reference to each embodiment shown in the drawings.But these embodiments are not
Limit the present invention, structure, method or change functionally that one of ordinary skill in the art is made according to these embodiments
Change and be all contained in protection scope of the present invention.
It is used herein for example " on ", " top ", D score, the term of the representation space relative position such as " lower section " be in order at just
A unit as shown in the drawings or feature are described in descriptive purpose relative to another unit or the relation of feature.It is empty
Between the term of relative position can be intended to include different azimuth of the equipment in use or work in addition to orientation shown in figure.
For example, if by figure equipment overturn, be described as being located at other units or feature " lower section " or " under " unit will
Positioned at other units or feature " top ".Therefore, exemplary term " lower section " can include above and below both orientation.If
It is standby to be otherwise directed（It is rotated by 90 ° or other directions）, and correspondingly explain used herein and space correlation
Description language.
It is a better embodiment of the lifting synchronization system 10 of refrigerator rack of the present invention shown in ginseng Fig. 1.The refrigerator is put
The lifting synchronization system 10 of rack includes controller（It is not shown）, rack body 11 and elevating mechanism 12, wherein, elevating mechanism
12 include again：Drive screw, guide post that motor is connected with motor and is motor driven, rack body 11 passes through connector
Guide post is slidably arranged in, rotor and the sensor for sense rotor movement state are provided with motor.
In the present embodiment, rack body 11 belongs to ultra-wide rack, at least needs two elevating mechanisms 12 to provide
Sufficient power can just complete the elevating movement of rack body 11, there is provided the space of more flexible storage food materials, two liftings
Mechanism 12 is separately positioned on inner container of icebox（It is not shown）The both sides of rear wall.
Specifically, one of elevating mechanism 12 includes：First motor, the first drive screw, the first guide post and with
First connector of one guide post adaptation, the first guide post is arranged close to the first drive screw and both are parallel, and first is oriented to
One end of bar and the first drive screw is each attached on the roof of refrigeration for refrigerator compartment inner bag, the other end of the first drive screw with
The rotor of the first motor is fixedly connected, the rotor synchronous axial system of the first drive screw and the first motor, the first guide post it is another
One end is fixed on the shell of the first motor.Another elevating mechanism 12 includes that the second motor, the second drive screw, second are oriented to
Bar and the second connector being adapted to the second guide post, the second guide post is arranged close to the second drive screw and both are parallel,
One end of second guide post and the second drive screw is each attached on the roof of refrigeration for refrigerator compartment inner bag, the second drive screw
The other end is fixedly connected with the rotor of the second motor, the rotor synchronous axial system of the second drive screw and the second motor, and second is oriented to
The other end of bar is fixed on the shell of the second motor.
Further, the opposite sides of rack body 11 is provided with support member 111, and rack body 11 passes through support member
111 are fixedly connected with connector.
The first sliding nut being adapted to the first drive screw is provided with the first connector, is provided with the second connector
The second sliding nut being adapted to the second drive screw, after the completion of rack body 11 and the assembling of elevating mechanism 12, first connects
Fitting is slidably sheathed on the first guide post, and the first sliding nut is sheathed on the first drive screw, and the second connector slides
Be sheathed on the second guide post, the second sliding nut is sheathed on the second drive screw.Drive screw is caused by Motor drive
Sliding nut is lifted from drive rack body 11 along drive screw and moved along guide post.
Because two elevating mechanisms 12 and rack body 11 are symmetrically assembled, the complete phase of structure of two elevating mechanisms 12
Together, illustrate by taking one of elevating mechanism 12 as an example below：
With reference to shown in Fig. 2 and 3, start the first motor 121, the rotor 1211 in it drives the first drive screw 122 to rotate so that
Sliding nut 125 is lifted along drive screw, and the first connector 124 is moved along guide post, is driven with rack body 11 along guiding
Bar 123 is moved.
Further, first sensor 1212, the first motor 121 and first sensor 1212 are provided with the first motor 121
And controller（It is not shown）It is electrically connected with.Preferably, first sensor 1212 is Hall element.First motor 121 turn
Son 1211 is provided with magnetic gear 13, magnetic gear 13 and rotor run-in synchronism, and first sensor 1212 is former by electromagnetic induction
Reason, can detect the different conditions of magnetic tooth boss on gear and non magnetic groove, so as to obtain the rotation of magnetic gear 13
Rotary speed, and the gear rotational speed for sensing is converted to into the signal of telecommunication feeds back to controller.
Because the lifting of rack needs at least two elevating mechanisms 12, in the present embodiment, controller receives first
The rotating speed and step number signal of the corresponding motor of sensor and second sensor feedback, when controller analyzes the first motor and second
During the variant value of the tach signal of motor, logical operationss are carried out, and the signal run by motor is compensated, and makes rotating speed
With respect to Accelerating running, the fast motor of rotating speed is relative to run slowly slow motor, and controller constantly detects rotating speed and drive signal
Compensation, the rotating speed and step number for controlling each motor gradually tends to synchronous.
Correspondingly, the present invention also proposes a kind of control method of the lifting synchronization system using above-mentioned refrigerator rack, its
Comprise the following steps：
S1, the rotating speed of sensor acquisition each motor and step number signal simultaneously feed back to controller, and controller receives first sensor
With the rotating speed and step number signal of the corresponding motor of second sensor feedback.
S2, when controller analyzes the rotating speed of different motors and step number signal has differences, controller is to each motor
Control signal is sent, the rotating speed and step number of each motor is adjusted until each motor operation synchronization.When controller analyzes first
During the variant value of the tach signal of motor and the second motor, logical operationss are carried out, and the signal run by motor is carried out
Compensation, makes the slow motor of rotating speed with respect to Accelerating running, and the fast motor of rotating speed is relative to run slowly, and controller constantly detects rotating speed
Compensate with drive signal, the rotating speed and step number for controlling each motor gradually tends to synchronous.
When ballast load is disposed close on the rack of the first motor side, the resistance that the first motor is subject to is greater than
Second motor, the speed of service of the first motor will be slower than the second motor, first sensor and second sensor Real-time Collection to
The tach signal of one motor and the second motor passes to controller, and controller analyzes the rotating speed letter of the first motor and the second motor
Number variant value, carries out logical operationss, and the signal run by motor is compensated, and makes that the first motor is relative to accelerate fortune
OK, the second motor is relative runs slowly, constantly detecting rotating speed and drive signal compensation, can be synchronous so as to reach two motors
The purpose of operation.
When ballast load is disposed close on the rack of the second motor side, multi channel logic ibid.
Further, it is additionally provided with guide post spacing with the upper limit device 126 of controller electric connection and bottom
Device 127, when connector touching upper limit device 126 or bottom limiting device 127, upper limit device 126 or bottom
To the position signalling of controller feedback connection, controller is arranged to according to upper limit device 126 or bottom stopping means 127
The position signalling controlled motor of the feedback of portion's stopping means 127 is out of service.
Preferably, upper limit device 126 and bottom limiting device 127 are contact switch.
First motor 121 and the second motor（Non- label）If there is nonsynchronous deviation in operation, the first connector
124 or second connector（Non- label）The peak of upward stroke or the minimum point of descending stroke can be successively reached, now, is arrived first
The connector for reaching can touch upper limit device 126 or bottom limiting device 127, and upper limit device 126 or bottom are spacing
Position signalling of the device 127 to controller feedback connection（High/low level signal）, controller is according to upper limit device 126
Or the corresponding motor of position signalling control of the feedback of bottom limiting device 127 is out of service, corresponding to the connector for reaching afterwards
Motor remains in operation until the connector of rear arrival is touched stop after upper limit device 126 or bottom limiting device 127 fortune
OK, prevent motor rotation blockage from generating heat and produce noise, the problem of the motor operation that effectively resetted deviation.
In addition, memory element is integrated with controller, and when rack is elevated to any one position, and power-off occurs, control
The motor operation step number that device senses sensor is stored to memory element.The motor operation step number that sensor detecting is arrived, transmission
To the memory element on controller, the positional information of power-cut time motor is remembered, effectively solve and go up again after electricity, rack
When being elevated to highest lowermost row degree site, the stuck problem of the spacing stall that motor may occur.
Preferably, memory element is EPROM or EEPROM.
The lifting synchronization system and its control method of the refrigerator rack of the present invention preferably solves the problems, such as three below：
1st, when an electrical fault does not turn, sensor detecting to motor speed stop signal feeds back to immediately controller, control
Another motor also shuts down, and effectively solving non-faulting motor continues to run with the problem of stall heating；
2nd, when the weight on rack places uneven, during the motor unbalance stress of left and right, sensor constantly gathers two motors
Rotating speed and operation step number, and controller is fed back to, controller constantly coordinates two motors will be run simultaneously, effectively solving rack
Inclined problem；
3rd, when rack is elevated to any one position, and power-off occurs, the motor operation step number that Hall element is detected is passed
The memory element on controller is passed, the positional information of power-cut time motor is remembered, is effectively solved and is gone up again after electricity, put thing
When frame is elevated to highest lowermost row degree site, the stuck problem of the spacing stall that motor may occur.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of spirit or essential attributes without departing substantially from the present invention, the present invention can be in other specific forms realized.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit is required rather than described above is limited, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.Any reference in claim should not be considered as and limit involved claim.
Moreover, it will be appreciated that although this specification is been described by according to embodiment, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of description is only that for clarity those skilled in the art should
Using description as an entirety, the technical scheme in each embodiment can also Jing it is appropriately combined, form those skilled in the art
Understandable other embodiment.
Claims (10)
1. the lifting synchronization system of a kind of refrigerator rack, including：Controller, rack body and at least two elevating mechanisms,
Characterized in that, the elevating mechanism includes：
Motor, is provided with sensor in the motor, the motor and sensor are electrically connected with the controller；
Drive screw, operates with the motor connection and by the Motor drive；
Guide post, be arranged in parallel with the drive screw, and the guide post is provided with the top being electrically connected with the controller
Stopping means and bottom limiting device；
Connector, fixes with the rack body, and the connector is provided with the sliding nut being adapted to the drive screw,
After the completion of the rack body with elevating mechanism assembling, the connector is slidably sheathed on the guide post,
The sliding nut is sheathed on drive screw, and drive screw described in the Motor drive rotates to drive the sliding nut liter
Drop so as to drive the connector and rack body to move along the guide post；
When the connector is when the upper limit device or bottom limiting device is touched during movement, the top limit
Position device or bottom limiting device feed back the position signalling of the connector to the controller, and the controller is arranged to root
It is out of service that the position signalling fed back according to the upper limit device or bottom limiting device controls the motor.
2. the lifting synchronization system of refrigerator rack according to claim 1, it is characterised in that the controller is also set
The rotating speed and step number signal for being set to the corresponding motor according to each sensor feedback controls the rotating speed and step number of each motor
Gradually tend to synchronous.
3. the lifting synchronization system of refrigerator rack according to claim 2, it is characterised in that be provided with the motor and turn
Son, the rotor is connected with the drive screw.
4. the lifting synchronization system of refrigerator rack according to claim 3, it is characterised in that the rotor is provided with magnetic
The gear rotational speed for sensing is converted to telecommunications by property gear, the magnetic gear and the rotor run-in synchronism, the sensor
Number feed back to the controller.
5. the lifting synchronization system of refrigerator rack according to claim 4, it is characterised in that the magnetic gear includes
Magnetic tooth boss and non magnetic groove.
6. the lifting synchronization system of refrigerator rack according to claim 1, it is characterised in that the rack body
Opposite sides is provided with support member, and the rack body is fixedly connected by the support member with the connector.
7. the lifting synchronization system of refrigerator rack according to claim 1, it is characterised in that two elevating mechanisms
It is arranged on the both sides of inner container of icebox rear wall.
8. the lifting synchronization system of refrigerator rack according to claim 2, it is characterised in that the sensor is Hall
Sensor.
9. the lifting synchronous control method of refrigerator rack according to claim 1, it is characterised in that on the controller
Memory element is integrated with, when rack is elevated to any one position, and power-off occurs, the controller is by the sensor sense
The motor operation step number for measuring is stored to memory element.
10. the lifting synchronization system of refrigerator rack according to claim 1, it is characterised in that the memory element is
EPROM or EEPROM.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610990482.9A CN106568291A (en) | 2016-11-10 | 2016-11-10 | Lifting synchronization system of refrigerator rack |
| PCT/CN2017/109666 WO2018086503A1 (en) | 2016-11-10 | 2017-11-07 | Refrigerator shelf lifting synchronization system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610990482.9A CN106568291A (en) | 2016-11-10 | 2016-11-10 | Lifting synchronization system of refrigerator rack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106568291A true CN106568291A (en) | 2017-04-19 |
Family
ID=58541006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610990482.9A Pending CN106568291A (en) | 2016-11-10 | 2016-11-10 | Lifting synchronization system of refrigerator rack |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN106568291A (en) |
| WO (1) | WO2018086503A1 (en) |
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| CN107421227A (en) * | 2017-08-18 | 2017-12-01 | 青岛海尔股份有限公司 | Rack and the refrigerator with the rack |
| WO2018086504A1 (en) * | 2016-11-10 | 2018-05-17 | 青岛海尔股份有限公司 | Raising/lowering synchronization system for refrigerator rack and control method thereof |
| WO2018086503A1 (en) * | 2016-11-10 | 2018-05-17 | 青岛海尔股份有限公司 | Refrigerator shelf lifting synchronization system |
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| CN106568291A (en) * | 2016-11-10 | 2017-04-19 | 青岛海尔股份有限公司 | Lifting synchronization system of refrigerator rack |
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| WO2018086504A1 (en) * | 2016-11-10 | 2018-05-17 | 青岛海尔股份有限公司 | Raising/lowering synchronization system for refrigerator rack and control method thereof |
| WO2018086503A1 (en) * | 2016-11-10 | 2018-05-17 | 青岛海尔股份有限公司 | Refrigerator shelf lifting synchronization system |
| CN107080499B (en) * | 2017-06-09 | 2022-09-20 | 北京小狗吸尘器集团股份有限公司 | Method for getting rid of sleepiness after floor sweeping robot is clamped |
| CN107080499A (en) * | 2017-06-09 | 2017-08-22 | 小狗电器互联网科技（北京）股份有限公司 | Sweeping robot be stuck after get rid of poverty method and sweeping robot |
| CN107421227B (en) * | 2017-08-18 | 2022-01-21 | 海尔智家股份有限公司 | Rack and refrigerator with same |
| CN107421227A (en) * | 2017-08-18 | 2017-12-01 | 青岛海尔股份有限公司 | Rack and the refrigerator with the rack |
| CN108592475A (en) * | 2018-05-16 | 2018-09-28 | 青岛海尔科技有限公司 | Control method, device and the refrigerator with adjustable supporter of refrigerator supporter |
| WO2020114159A1 (en) * | 2018-12-07 | 2020-06-11 | 海尔智家股份有限公司 | Refrigerator |
| CN110304673B (en) * | 2019-08-08 | 2022-04-12 | 佛山市顺德区美的饮水机制造有限公司 | Control method and control device for water purifier and water purifier |
| CN110304673A (en) * | 2019-08-08 | 2019-10-08 | 佛山市顺德区美的饮水机制造有限公司 | For the control method of water purifier, control device and water purifier |
| CN112944773A (en) * | 2019-12-11 | 2021-06-11 | 海信（山东）冰箱有限公司 | Refrigerator with adjustable layer plate height |
| CN112944773B (en) * | 2019-12-11 | 2022-06-17 | 海信（山东）冰箱有限公司 | Refrigerator with adjustable layer plate height |
| CN111174524B (en) * | 2020-01-20 | 2021-08-31 | 合肥华凌股份有限公司 | Shelf assembly and storage cabinet |
| CN111174524A (en) * | 2020-01-20 | 2020-05-19 | 合肥华凌股份有限公司 | Shelf assembly and storage cabinet |
| CN113246812A (en) * | 2020-02-07 | 2021-08-13 | 现代自动车株式会社 | Side pad adjusting device, side pad adjusting system and side pad adjusting method of vehicle seat |
| WO2021184867A1 (en) * | 2020-03-18 | 2021-09-23 | 合肥美的电冰箱有限公司 | Shelf device and storage cabinet |
| US12096851B2 (en) | 2020-03-18 | 2024-09-24 | Hefei Midea Refrigerator Co., Ltd. | Shelf device and storage cabinet |
| CN111765711A (en) * | 2020-07-02 | 2020-10-13 | 长虹美菱股份有限公司 | Refrigerator shelf and refrigerator applying same |
| CN112302462A (en) * | 2020-10-30 | 2021-02-02 | 深圳市巨鼎医疗设备有限公司 | Opening and closing control method and device for medical electric door |
| CN116202273A (en) * | 2021-11-30 | 2023-06-02 | 青岛海尔电冰箱有限公司 | Refrigerator with a refrigerator body |
| CN116202272A (en) * | 2021-11-30 | 2023-06-02 | 青岛海尔电冰箱有限公司 | Refrigerator with a refrigerator body |
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