Title:
ROTARY ELECTRIC MACHINE
Document Type and Number:
WIPO Patent Application WO/2020/250541
Kind Code:
A1
Abstract:
This invention increases the heat dissipation effect of a heat sink on a heat generating element. In a rotary electric machine 10, a portion of a circuit board 70 that is grounded to a first grounded portion 61 and a second grounded portion 63 of a heat sink 60 is configured as the non-coated portion 71, and the non-coated portion 71 is not coated with a resist. Therefore, the circuit board 70 can be grounded to the first grounding portion 61 and the second grounding portion 63 of the heat sink 60 without being affected by the variation in film thickness of the resist. As a result, a gap G2 between a FET 74 mounted on the circuit board 70 and a first heat radiating portion 65A, a second heat radiating portion 65B, and a third heat radiating portion 65C of the heat sink 60 can be set as small as possible. Therefore, the heat generated by the FET 74 can be efficiently transferred to the heat sink 60. As described above, the heat dissipation effect of the heat sink 60 on the FET 74 can be enhanced.
Inventors:
EGUCHI YUU (JP)
TOMITA HARUKI (JP)
MATSUDA SHUN (JP)
TOMITA HARUKI (JP)
MATSUDA SHUN (JP)
Application Number:
PCT/JP2020/013867
Publication Date:
December 17, 2020
Filing Date:
March 26, 2020
Export Citation:
Assignee:
KYB CORP (JP)
International Classes:
H02K11/33; H05K7/20
Foreign References:
| JP2018148688A | 2018-09-20 | |||
| JP2017184542A | 2017-10-05 |
Attorney, Agent or Firm:
KATO, Seiji (JP)
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