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Patent Searching and Data


Title:
LINEAR MOTOR SYSTEM
Document Type and Number:
WIPO Patent Application WO/2019/008908
Kind Code:
A1
Abstract:
Provided is a linear motor system that can prevent mobile element impact, without the need for a sensor that detects impact. A linear motor system 100 that comprises: a linear motor 104 that has a winding 8 to which at least alternating current voltage is applied and a mobile element 6 to which an elastic body 23 is connected; and a linear motor drive device 101 that detects fluctuations in the amplitude of the alternating current flowing in the winding 8 and, when the detected amplitude has exceeded a prescribed value, detects that the mobile element 6 has exceeded a maximum displacement.

Inventors:
SUZUKI Takahiro (6-6, Marunouchi 1-chome, Chiyoda-k, Tokyo 80, 〒1008280, JP)
KOYAMA Masaki (6-6, Marunouchi 1-chome, Chiyoda-k, Tokyo 80, 〒1008280, JP)
Application Number:
JP2018/018673
Publication Date:
January 10, 2019
Filing Date:
May 15, 2018
Export Citation:
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Assignee:
HITACHI AUTOMOTIVE SYSTEMS, LTD. (2520, Takaba Hitachinaka-sh, Ibaraki 03, 〒3128503, JP)
HITACHI INDUSTRIAL EQUIPMENT SYSTEMS CO., LTD. (3 Kanda Neribei-cho, Chiyoda-ku Tokyo, 22, 〒1010022, JP)
International Classes:
H02P25/064; H02K41/02
Foreign References:
JP2009275828A2009-11-26
JP2011209830A2011-10-20
JP2003339188A2003-11-28
Attorney, Agent or Firm:
POLAIRE I.P.C. (13-11, Nihonbashikayabacho 2-chome Chuo-k, Tokyo 25, 〒1030025, JP)
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