Title:
CONTROL DEVICE FOR FAN MOTOR
Document Type and Number:
Japanese Patent JP2015002608
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To suppress deterioration of an air flow property and increase of loss power even when a load of a fan motor is increased.SOLUTION: A control device comprises: sensor parts H1, H2 and H3 for detecting a rotational position of a fan motor M; a switching part 130 for selectively connecting each of stator coils Lu, Lv and Lw of the fan motor M with a rectifier circuit 110; a current sensor 148 for detecting a current that flows to the fan motor M; and a switching control part 150 in which, when the current detected by the current sensor 148 exceeds a threshold value, while using the rotational position detected by the sensor parts H1, H2 and H3, timing of electrification of the stator coils Lu, Lv and Lw and the rectifier circuit 110 is made earlier than the timing in the case where the detected current does not exceed the threshold value.
Inventors:
MURAMATSU YO
TODA TAKAHISA
NISHIMAKI KENTA
TODA TAKAHISA
NISHIMAKI KENTA
Application Number:
JP2013125704A
Publication Date:
January 05, 2015
Filing Date:
June 14, 2013
Export Citation:
Assignee:
SANYO ELECTRIC CO
International Classes:
H02P6/06; H02P6/08; H02P6/15; H02P6/16; H02P6/28
Domestic Patent References:
| JP2005312217A | 2005-11-04 |
Attorney, Agent or Firm:
Hatta international patent business corporation
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