Refrigerator rack lifting synchronization system and control method thereof

A synchronizing system and a technology for racks, which are applied to the lifting synchronization system of refrigerator racks and the control field thereof, can solve the problems of failure of the lifting function of the racks, the tilting of the racks, the blocking of motors, and the like, and achieve a structural Simple, responsive, and precise effects

Inactive Publication Date: 2017-04-26
HAIER SMART HOME CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the following problems will occur during the use of this electric lifting shelf: when the shelf is subjected to a large unbalanced external force or a single motor fai

Method used

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  • Refrigerator rack lifting synchronization system and control method thereof
  • Refrigerator rack lifting synchronization system and control method thereof
  • Refrigerator rack lifting synchronization system and control method thereof

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Embodiment Construction

[0028] The present invention will be described in detail below in conjunction with various embodiments shown in the drawings. However, these embodiments do not limit the present invention, and any structural, method, or functional changes made by those skilled in the art according to these embodiments are included in the protection scope of the present invention.

[0029] The terms used herein to denote relative spatial positions such as "upper", "above", "under", "under", etc. are for convenience of description to describe the relative position of one element or feature relative to another as shown in the drawings. Relationships of units or features. The terms of spatial relative position may be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriente...

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PUM

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Abstract

The invention provides a refrigerator rack lifting synchronization system which comprises a controller, a rack body and at least two lifting mechanisms. Each lifting mechanism comprises a motor, a transmission threaded rod, a guide rod and a connection piece, and each connection piece is furthermore provided with a sliding nut adapted to the corresponding transmission threaded rod; after the rack body and the lifting mechanisms are assembled, the connection pieces are slidably arranged on the guide rods in a sleeved manner, the sliding nuts are arranged on the transmission threaded rods in a sleeved manner, and the motors drive the transmission threaded rods to rotate to drive the sliding nuts to ascend and descend so that the rack body is driven to move along the guide rods; and the controller is set to control the rotation speeds and step numbers of all the motors to gradually tend to be synchronous according to the rotation speed and step number signal of the corresponding motor fed back by each sensor. Compared with the prior art, the method that the operation states of the motors are detected constantly through the sensors and fed back to the controller for logic analysis, drive compensation is adjusted constantly, and then operation signals of drive motors are adjusted is adopted, and the purpose that the two motors can always maintain synchronous operation is achieved.

Description

technical field [0001] The invention belongs to the technical field of household electrical appliances, and in particular relates to a synchronous system for lifting and lowering a shelf of a refrigerator and a control method thereof. Background technique [0002] At present, in the refrigerating compartment of the refrigerator, there is usually at least one shelf for shelving articles, and the inner wall of the refrigerating compartment of the refrigerator is provided with a rib for supporting the shelf, and the shelf is placed on the rib , so as to divide the refrigeration compartment into several storage spaces. [0003] With the development of technology, an electric lifting shelf can be installed in the refrigerator. The lifting of the shelf is completed by the lifting mechanism. Its main function is to meet the storage of food materials of different volumes, and the shelf can be adjusted electrically within the effective range The height between them does not need to ...

Claims

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Application Information

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IPC IPC(8): F25D25/02F25D29/00H02P6/04
CPCF25D25/02F25D29/003H02P6/04
Inventor 唐海东刘明勇吴光瑞张珩王宁
Owner HAIER SMART HOME CO LTD
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