Linear motor system and compressor

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11411522
APP PUB NO 20200373866A1
SERIAL NO

16992218

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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Controllability of a linear motor or a compressor is improved in a linear motor system that includes: an armature having magnetic poles and winding wires; a mover having a permanent magnet; and a power conversion unit that outputs AC power to the winding wires, in which the mover and the armature are relatively movable, and the mover or the armature is connected to an elastic body. The linear motor system further includes: a position detection unit that detects and outputs the position of the mover with respect to the armature, a position estimation, or a current detection unit that outputs the value of current flowing through the winding wires; and a control unit that controls the output of the power conversion unit on the basis of the output of the position detection unit, the output of the position estimation unit, or the output of the current detection unit.

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Patent Owner(s)

  • HITACHI, LTD.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hatsuse, Wataru Tokyo, JP 9 56
Koyama, Masaki Tokyo, JP 78 1055
Nagata, Shuhei Tokyo, JP 10 10
Suzuki, Takahiro Tokyo, JP 540 4459

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