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Patent Searching and Data


Title:
OVERHEAT PROTECTION CONTROL DEVICE OF MOTOR
Document Type and Number:
Japanese Patent JP2005027452
Kind Code:
A
Abstract:

To provide the overheat protection control device of a motor simplified in constitution and reducible in manufacturing cost.

A window drive control device 11 comprises an operation control unit 12, a motor driver 13 and the motor 14. The operation control unit 12 controls the operation of the motor 14 on the basis of an operating signal from an operating switch 15. The operation control unit 12 calculates an operation current value of the motor 14 on the basis of a pulse signal from a pulse sensor 18, calculates a calorific value of the motor 14 from an operation time of the motor 14 and the operation current value, and conducts operation prohibition control that prohibits the operation of the motor provided that the calculated calorific value of the motor 14 has exceeded a preset reference value.


Inventors:
ADACHI TAKAYUKI
Application Number:
JP2003191383A
Publication Date:
January 27, 2005
Filing Date:
July 03, 2003
Export Citation:
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Assignee:
TOKAI RIKA CO LTD
International Classes:
H02H7/085; H02P3/06; (IPC1-7): H02H7/085; H02P3/06
Attorney, Agent or Firm:
恩田 博宣
恩田 誠