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Title:
POWER CONVERSION DEVICE, ELECTRIC MOTOR DRIVE DEVICE, AND AIR CONDITIONING DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/077842
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a power conversion device, an electric motor drive device, and an air conditioning device in which the standby power can be effectively suppressed while suppressing rush current. The power conversion device (1) is provided with: a rectifier unit (6) connected to an AC power supply (18); an inductance unit (7) provided in a DC electrical path from the rectifier unit (6); a first electrical path (8) connecting a positive electrode-side DC electrical path and a negative electrode-side DC electrical path on the opposite side of the rectifier unit (6) with the inductance unit (7) in between; a capacitor (9) provided in the first electrical path (8); a first switch unit (10) provided in the DC electrical path between the rectifier unit (6) and the first electrical path (8) or in the first electrical path (8); a second electrical path (11) having one end connected to one phase of the AC power supply (18) and the other end connected between the first switch unit (10) and the capacitor (9) in the first electrical path (8); and a second switch unit (12), a reverse flow protection unit (13), and a resistor unit (14) provided in the second electrical path (11).

Inventors:
YAMADA, Ryohei (C/O MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS LTD, 16-5, Konan 2-chome, Minato-k, Tokyo 15, 〒1088215, JP)
YOSHIDA, Junichi (C/O MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS LTD, 16-5, Konan 2-chome, Minato-k, Tokyo 15, 〒1088215, JP)
Application Number:
JP2018/028778
Publication Date:
April 25, 2019
Filing Date:
August 01, 2018
Export Citation:
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Assignee:
MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD. (16-5, Konan 2-Chome Minato-k, Tokyo 15, 〒1088215, JP)
International Classes:
H02M7/06
Domestic Patent References:
WO2016157441A12016-10-06
Foreign References:
JP2010178413A2010-08-12
US20160268797A12016-09-15
JP2013162719A2013-08-19
JPH11289766A1999-10-19
JP2010178414A2010-08-12
JPH04312361A1992-11-04
JP2013074792A2013-04-22
Attorney, Agent or Firm:
FUJITA, Takaharu (37F The Landmark Tower Yokohama, 2-2-1 Minatomirai, Nishi-ku, Yokohama-sh, Kanagawa 37, 〒2208137, JP)
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