Title:
POWER CONVERTER
Document Type and Number:
WIPO Patent Application WO/2019/187385
Kind Code:
A1
Abstract:
A purpose of the present invention is to reduce the size of a power conversion device and to save the installation space. In order to achieve the above purpose, a power conversion device has a plurality of power semiconductors with a small heat generation amount that rectifies input AC power into direct current, a plurality of power semiconductors with a large heat generation amount that converts rectified DC power into AC power, a first heat sink for cooling the plurality of power semiconductors with a small heat generation amount, and a second heat sink for cooling the plurality of power semiconductors with a large heat generation amount, wherein the plurality of power semiconductors with a small amount of heat generation are arranged upstream of the cooling air, the plurality of power semiconductors with a large amount of heat generation are arranged downstream of the cooling air, and a predetermined space is provided between the first heat sink and the second heat sink.
Inventors:
HAMANO KOJI (JP)
HIROTA MASAYUKI (JP)
HIROTA MASAYUKI (JP)
Application Number:
PCT/JP2018/046080
Publication Date:
October 03, 2019
Filing Date:
December 14, 2018
Export Citation:
Assignee:
HITACHI INDUSTRY EQUIPMENT SYSTEMS CO LTD (JP)
International Classes:
H02M7/48
Foreign References:
| JP2010172183A | 2010-08-05 | |||
| JP2006087212A | 2006-03-30 | |||
| JP2016093072A | 2016-05-23 | |||
| JP2003188321A | 2003-07-04 |
Attorney, Agent or Firm:
SEIRYO I.P.C. (JP)
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