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Patent Searching and Data


Title:
MOTOR CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2012/042788
Kind Code:
A1
Abstract:
This motor control device has a dynamic brake function of absorbing the energy of a motor to apply a brake to the motor. The motor control device comprises: a dynamic brake resistor; a thermal switch which is arranged adjacent to the dynamic brake resistor; a thermal fuse which is arranged adjacent to the dynamic brake resistor and is connected to the dynamic brake resistor in series; and a disconnection detection circuit which detects the state of disconnection in the thermal switch. In the motor control device, the working temperature of the thermal switch is set at a temperature lower than the working temperature of the thermal fuse.

Inventors:
DOI, Satoru (())
Application Number:
JP2011/005295
Publication Date:
April 05, 2012
Filing Date:
September 21, 2011
Export Citation:
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Assignee:
PANASONIC CORPORATION (1006, Oaza Kadoma Kadoma-sh, Osaka 01, 〒5718501, JP)
パナソニック株式会社 (〒01 大阪府門真市大字門真1006番地 Osaka, 〒5718501, JP)
International Classes:
H02P3/22
Foreign References:
JP2006191722A
JPS63161886A
JPS57160380A
JPH10225158A
JPS61189178A
JP2006296096A
JP2002084686A
Attorney, Agent or Firm:
NAITO, Hiroki et al. (1006 Oaza Kadoma, Kadoma-sh, Osaka 01, 〒5718501, JP)
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Claims: