Title:
鉄道車両の電力変換装置および電力変換装置を搭載した鉄道車両
Document Type and Number:
Japanese Patent JP6837565
Kind Code:
B2
Abstract:
Provided is a highly-reliable cooling structure for a power conversion device for rail cars which uses a self-oscillating heat pipe for cooling, wherein a decrease in cooling performance due to impact by a flying object or the like is avoided. Accordingly, this power conversion device for rail cars is composed of a plurality of power semiconductor elements and comprises a self-oscillating heat pipe which cools the power semiconductor elements. The self-oscillating heat pipe is, for example, structured such that the interior of a heat sink member exposed to a cooling airflow has sealed flow paths wherein a working fluid is sealed. The thickness of end partition walls of the self-oscillating heat pipe, each of which is in contact with an airflow inlet portion or an outlet portion, is greater than the thickness of an internal partition wall separating the flow path.
Inventors:
Funakoshi Saho
Yousuke Yasuda
Atsuo Nishihara
Shuichi Teramon
Keisuke Horiuchi
Kunihiko Hata
Yousuke Yasuda
Atsuo Nishihara
Shuichi Teramon
Keisuke Horiuchi
Kunihiko Hata
Application Number:
JP2019540752A
Publication Date:
March 03, 2021
Filing Date:
March 27, 2018
Export Citation:
Assignee:
株式会社日立製作所
International Classes:
B61C17/00; F28D15/02; H01L23/427
Domestic Patent References:
| JP2004229500A | ||||
| JP20148852A | ||||
| JP201150166A | ||||
| JP2015172474A | ||||
| JP201888744A |
Foreign References:
| WO2016110977A1 | ||||
| US20130133871 |
Attorney, Agent or Firm:
Patent Business Corporation Daiichi International Patent Office