Motor device
US11545876B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 30, 2020 |
| Grant date | Jan 3, 2023 |
| Priority date | — |
| Expiry date | May 13, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K5/15
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A motor device includes a motor, a first substrate, a second substrate, a first heat sink, and a second heat sink. The second substrate is placed to face the first substrate in the plate-thickness direction of the second substrate. A second element group provided on the second substrate has a heat generation amount larger than that of a first element group provided on the first substrate. The first heat sink is placed between the first substrate and the second substrate so as to promote heat dissipation from the first element group and the second element group. The second heat sink is placed on the opposite side of the second substrate from the first heat sink and is configured to promote heat dissipation from the second element group.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.