公开(公告)号：US10907871B2

公开(公告)日：2021-02-02

申请号：US16200889

申请日：2018-11-27

Applicant: Hitachi-Johnson Controls Air Conditioning, Inc.

Inventor： Hiroki Kinoshita ,  Kazuhiro Tsuchihashi ,  Naoyuki Fushimi ,  Toshiki Mochizuki ,  Shuntaro Inoue ,  Masayoshi Murofushi ,  Yoshinori Iwashina ,  Kazuhiko Tani

IPC: F25B47/00 ,  F25B41/04 ,  F25B13/00 ,  F25B41/00 ,  F25B49/02

Abstract: A refrigerant flow path switch arranged between an outdoor device and each of multiple indoor devices controls a refrigerant flow and is provided with a housing; a refrigerant flow path switching circuit having multiple refrigerant flow path switching circuits, wherein each refrigerant flow path switching circuit includes a high/low pressure gas pipe, a low pressure gas pipe, a high/low pressure electric valve provided at the high/low pressure gas pipe, and a low pressure electric valve provided at the low pressure gas pipe. A liquid pipe assembly is arranged in the housing and has multiple liquid pipes connected to the multiple indoor devices. A first divider plate is provided between adjacent ones of the refrigerant flow path switching circuits and divides an internal space of the housing such that a space divided by the first divider plate is in a substantially cubic shape, which is filled with a foaming agent.