LINEAR COMPRESSOR SINE WAVE CONTROL METHOD

WIPO Patent Application WO/2019/205757

A1

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.

GAO SHAN (CN)
XU SHENG (CN)
LEE HYEONGKOOK (CN)
SONG BIN (CN)
WU YUANGANG (CN)

PCT/CN2019/072910

October 31, 2019

January 24, 2019

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QINGDAO HAIER SMART TECH R & D CO LTD (CN)

H02K33/10; F04B49/06

CN101010858A	2007-08-01
CN104728074A	2015-06-24
CN101390277A	2009-03-18
CN103470483A	2013-12-25
CN103457425A	2013-12-18
JP2003262189A	2003-09-19
JP2005282517A	2005-10-13

QINGDAO LZ PATENT & TRADEMARK OFFICE CO., LTD. (CN)

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