CASCADE UNIT AND REFRIGERATION CYCLE DEVICE

WIPO Patent Application WO/2023/054273

A1

Provided are a cascade unit and a refrigeration cycle device capable of cooling an electrical component. This refrigeration cycle device (1) comprises a primary-side refrigerant circuit (5a), which has a primary-side heat exchanger (74), and in which a primary-side refrigerant flows, a secondary-side refrigerant circuit (10), which has a secondary-side compressor (21) and usage-side heat exchangers (52a, 52b, 52c), and in which a secondary-side refrigerant flows, and a cascade heat exchanger (35), which exchanges heat between the primary-side refrigerant and the secondary-side refrigerant. In this refrigeration cycle device, a cascade unit (2) comprises the secondary-side compressor (21), the cascade heat exchanger (35), a first electrical component (91) for driving the secondary-side compressor (21), a first cooling unit (11a) for cooling the first electrical component (91) by means of the secondary-side refrigerant flowing in the secondary-side refrigerant circuit (10), and a cascade casing (2x) for accommodating the secondary-side compressor (21), the first electrical component (91), and the first cooling unit (11a).

SAEKI KUMIKO
IYOSHI YUTA
YAMANOI YOSHIKI

PCT/JP2022/035759

April 06, 2023

September 26, 2022

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DAIKIN IND LTD (JP)

F25B7/00; F24F1/24; F25B1/00

WO2021044547A1	2021-03-11
WO2020004108A1	2020-01-02
WO2012121326A1	2012-09-13

JP2008020083A	2008-01-31
JP2000161794A	2000-06-16
JP2015197281A	2015-11-09
JP2012247136A	2012-12-13
JP2012067962A	2012-04-05

SHINJYU GLOBAL IP (JP)

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