Title:
FAN MOTOR
Document Type and Number:
WIPO Patent Application WO/2019/198466
Kind Code:
A1
Abstract:
In the present invention, a circuit board has: a substrate body disposed on the side opposite to a stator with respect to a plate-shaped part of a center piece; and heat-generating elements mounted to the surface of the substrate body on the plate-shaped part side and disposed within the range of the radial direction of a rotor housing. A heat-dissipating portion of a heat sink is disposed on the plate-shaped part side with respect to the circuit board, and the heat-dissipating portion comes into contact with the heat-generating elements or contacts said elements via a heat-transferring material. A guide portion is formed, on the plate-like part, facing the heat-dissipating portion in the axial direction of a motor unit. The guide portion forms an air-guiding flow channel, the channel being between the heat-dissipating portion and the guide portion, in a shape such that air taken in from an air intake port is guided from the outside in the radial direction of the motor unit towards the center.
Inventors:
KANDA HIDENORI (JP)
NEJIGANE KO (JP)
NEJIGANE KO (JP)
Application Number:
PCT/JP2019/012172
Publication Date:
October 17, 2019
Filing Date:
March 22, 2019
Export Citation:
Assignee:
DENSO CORP (JP)
International Classes:
H02K5/20; H02K9/06; H02K11/33
Foreign References:
| JP2017195663A | 2017-10-26 | |||
| JP2010130802A | 2010-06-10 | |||
| JP2015092799A | 2015-05-14 | |||
| JP2015133843A | 2015-07-23 | |||
| JP2013093930A | 2013-05-16 | |||
| JP2017158272A | 2017-09-07 |
Attorney, Agent or Firm:
TAIYO, NAKAJIMA & KATO (JP)
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