Title:
POWER CONVERSION DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/037523
Kind Code:
A1
Abstract:
This power conversion device comprises: a power conversion circuit which converts DC power into AC power; a positive electrode bus bar and a negative electrode bus bar connected to the power conversion circuit; a capacitor connected to at least one of the positive electrode bus bar or the negative electrode bus bar; a metal base plate on which the capacitor is mounted; and a housing which accommodates the power conversion circuit, the capacitor, the base plate, the positive electrode bus bar and the negative electrode bus bar, and in which a refrigerant passage is formed. The positive electrode bus bar and the negative electrode bus bar are disposed in the housing via an insulating resin member. The base plate on which the capacitor is mounted is disposed in the housing. A thermal resistance from the capacitor to the refrigerant passage is larger than thermal resistances from the positive electrode bus bar and the negative electrode bus bar to the refrigerant passage.
Inventors:
NISHIZAWA YOUHEI (JP)
Application Number:
PCT/JP2021/033422
Publication Date:
March 16, 2023
Filing Date:
September 10, 2021
Export Citation:
Assignee:
HITACHI ASTEMO LTD (JP)
International Classes:
H02M7/48
Domestic Patent References:
| WO2019087852A1 | 2019-05-09 |
Foreign References:
| JP6328298B1 | 2018-05-23 | |||
| JP2018207718A | 2018-12-27 |
Attorney, Agent or Firm:
SUNNEXT INTERNATIONAL PATENT OFFICE (JP)
Download PDF: