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Title:
ELECTRIC MOTOR DRIVE DEVICE AND AIR CONDITIONER
Document Type and Number:
WIPO Patent Application WO/2019/026282
Kind Code:
A1
Abstract:
The electric motor drive device (100) according to the present invention is provided with: an inverter (50) applying power to an electric motor (70); and a plurality of relays (61, 62, 63) each switching the state between a first state and a second state, thereby switching the connection state of the electric motor. At least one of the relays (61, 62, 63) switches from the first state to the second state at a timing different from the timing at which the other relays (61, 62, 63) switch from first state to the second state.

Inventors:
TOKUDA, Yuta (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
HATAKEYAMA, Kazunori (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
Application Number:
JP2017/028426
Publication Date:
February 07, 2019
Filing Date:
August 04, 2017
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORPORATION (7-3 Marunouchi 2-chome, Chiyoda-ku Tokyo, 10, 〒1008310, JP)
International Classes:
H02P25/18
Domestic Patent References:
WO2014002251A12014-01-03
Foreign References:
JP2011199984A2011-10-06
JP2008228513A2008-09-25
Attorney, Agent or Firm:
TAKAMURA, Jun (Sakai International Patent Office, Toranomon Mitsui Building 8-1, Kasumigaseki 3-chome, Chiyoda-k, Tokyo 13, 〒1000013, JP)
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