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Title:
LINEAR MOTOR AND COMPRESSOR MOUNTED WITH LINEAR MOTOR
Document Type and Number:
WIPO Patent Application WO/2017/187958
Kind Code:
A1
Abstract:
Provided are: a linear motor capable of performing efficient operation at two drive frequencies; and a compressor that is mounted with same. This linear motor is provided with: a first movable part having one of a permanent magnet and a coil; a second movable part having the other of the permanent magnet and the coil; a fix part; a first spring that connects the first movable part and the second movable part; and a second spring that connects the second movable part and the fixed part, wherein: the first movable part and the second movable part reciprocate in substantially the same direction; and operations are performed in a low frequency range mode in which an alternating current of a frequency near a lower frequency range-side resonance mode frequency is applied to the coil, and in a high frequency range mode in which an alternating current of a frequency near a higher frequency range-side resonance mode frequency is applied to the coil.

Inventors:
MATSUKA Daisuke (6-6, Marunouchi 1-chome, Chiyoda-k, Tokyo 80, 〒1008280, JP)
KOYAMA Masaki (6-6, Marunouchi 1-chome, Chiyoda-k, Tokyo 80, 〒1008280, JP)
SUZUKI Takahiro (6-6, Marunouchi 1-chome, Chiyoda-k, Tokyo 80, 〒1008280, JP)
NAGATA Shuhei (6-6, Marunouchi 1-chome, Chiyoda-k, Tokyo 80, 〒1008280, JP)
OKAMOTO Kenichi (6-6, Marunouchi 1-chome, Chiyoda-k, Tokyo 80, 〒1008280, JP)
Application Number:
JP2017/014768
Publication Date:
November 02, 2017
Filing Date:
April 11, 2017
Export Citation:
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Assignee:
HITACHI, LTD. (6-6 Marunouchi 1-chome, Chiyoda-ku Tokyo, 80, 〒1008280, JP)
International Classes:
H02K33/16; H02K41/03
Foreign References:
JP2004522051A2004-07-22
JP2004194499A2004-07-08
JP2001286185A2001-10-12
JP2007111619A2007-05-10
JP2008093623A2008-04-24
JP2015149845A2015-08-20
Attorney, Agent or Firm:
TODA Yuji (6-1, Marunouchi 1-chome, Chiyoda-k, Tokyo 20, 〒1008220, JP)
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