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1. (WO2018221407) POWER CONVERSION DEVICE AND REFRIGERATION DEVICE

Pub. No.:    WO/2018/221407    International Application No.:    PCT/JP2018/020151
Publication Date: Fri Dec 07 00:59:59 CET 2018 International Filing Date: Sat May 26 01:59:59 CEST 2018
IPC: H02M 7/48
H02M 3/155
Applicants: DAIKIN INDUSTRIES, LTD.
ダイキン工業株式会社
Inventors: HIRAOKA Nobuyasu
平岡 誠康
ISHIZEKI Shinichi
石関 晋一
KOTERA Keito
小寺 圭人
FUJIWARA Masahide
藤原 正英
Title: POWER CONVERSION DEVICE AND REFRIGERATION DEVICE
Abstract:
A direct-type power conversion device having a power buffer circuit, wherein the wiring pattern can be easily simplified. A converter (2), a first switch, a second switch, and an inverter (5) are arranged in this sequence along a second direction (Q2), at a first position (P1) in a first direction (Q1). A reactor (L4) and a capacitor (C4) are arranged in this sequence along the second direction (Q2), at a second position (P2) in the first direction (Q1). Energy is accumulated in the reactor (L4) through the first switch. The capacitor C4 is discharged through the second switch. The set of the reactor (L4) and the converter (2) and/or the set of the capacitor (C4) and the inverter (5) are arranged along the first direction (Q1).