HEAT EXCHANGER, AND INDOOR UNIT FOR AIR CONDITIONER

WIPO Patent Application WO/2023/181763

A1

This heat exchanger comprises: heat transfer pipes (60) through which a heat medium flows; and a header (80) in which are formed connection ports (21, 22) to which the heat transfer pipes (60) are connected, and to which piping from a heat source side is connected, and a flow path of the heat medium allowing the connection ports (21, 22) and the heat transfer pipes (60) to communicate. The header (80) of the heat exchanger includes a first member (40) in which are formed insertion holes in which the heat transfer pipes (60) are inserted, and a first seal member installation groove which is formed around the insertion holes and in which a first seal member is press-fitted between the first seal member installation groove and the heat transfer pipes (60), and a second member (50) in which are formed a groove portion (23c) for forming the connection ports (21, 22) and the flow path, and a storage recess (30a) for storing the first member (40). Wide-diameter portions (60b) for preventing the first seal member from falling out are formed on ends of the heat transfer pipes (60) inserted into the insertion holes.

MIYAKAWA KODAI (JP)
OBARA KOICHI (JP)
FUKUDA KAZUNORI (JP)
MATSUMOTO TAKEMI (JP)

PCT/JP2023/006311

September 28, 2023

February 21, 2023

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MITSUBISHI ELECTRIC CORP (JP)

F28F9/16

JPH11118295A	1999-04-30
JPS56140796U	1981-10-24
US20190219345A1	2019-07-18
JPS54153457U	1979-10-25
JP2006105519A	2006-04-20
JP2005300135A	2005-10-27

KIMURA Mitsuru (JP)

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