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Title:
LINEAR COMPRESSOR SINE WAVE CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/2019/205757
Kind Code:
A1
Abstract:
A linear compressor sine wave control method, comprising a dynamic control mode, and comprising: during a mover of a linear compressor reciprocating between endpoint positions BDC and TDC, in a sine wave driving cycle, when the mover is about to move to one of the endpoint positions, stopping the sine wave driving in advance, waiting for the mover to move to the endpoint position, and recording the current time T0 when it is detected that there is a positive or negative change in the back electromotive force value of the mover; when the mover is about to move to the other endpoint position, stopping the sine wave driving in advance, and recording the current time T1 when it is detected that there is a positive and negative change in the back electromotive force value of the mover; and when the mover is about to move to one of the endpoint positions again, stopping the sine wave driving in advance, and recording the current time T2 when it is detected that there is a positive and negative change in the back electromotive force value of the mover. The method can acquire more accurate mover position information, so as to improve the control accuracy and use reliability of the linear compressor.

Inventors:
GAO, Shan (Haier Industrial Park, No. 1 Haier Road Laoshan Distric, Qingdao Shandong 1, 266101, CN)
XU, Sheng (Haier Industrial Park, No. 1 Haier Road Laoshan Distric, Qingdao Shandong 1, 266101, CN)
LEE, Hyeongkook (Haier Industrial Park, No. 1 Haier Road Laoshan Distric, Qingdao Shandong 1, 266101, CN)
SONG, Bin (Haier Industrial Park, No. 1 Haier Road Laoshan Distric, Qingdao Shandong 1, 266101, CN)
WU, Yuangang (Haier Industrial Park, No. 1 Haier Road Laoshan Distric, Qingdao Shandong 1, 266101, CN)
Application Number:
CN2019/072910
Publication Date:
October 31, 2019
Filing Date:
January 24, 2019
Export Citation:
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Assignee:
QINGDAO HAIER SMART TECHNOLOGY R&D CO., LTD. (Haier Industrial Park, No. 1 Haier Road Laoshan Distric, Qingdao Shandong 1, 266101, CN)
International Classes:
F04B49/06; H02K33/10
Foreign References:
CN101010858A2007-08-01
CN104728074A2015-06-24
CN101390277A2009-03-18
CN103470483A2013-12-25
CN103457425A2013-12-18
JP2003262189A2003-09-19
JP2005282517A2005-10-13
Attorney, Agent or Firm:
QINGDAO LZ PATENT & TRADEMARK OFFICE CO., LTD. (Room 505, Block B Futai Plaza,No. 18, Hongkong Middle Road, Shinan Distric, Qingdao Shandong 1, 266071, CN)
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