To provide a heat exchanger of an air conditioner capable of improving work efficiency in connecting an Al heat transfer pipe and a Cu external pipe.
The outdoor heat exchanger 2 includes a plurality of Al heat transfer pipes 21-24 formed in the meandering shape, a collecting pipe 30 having a plurality of branch sections 31-34 and a collecting section 35 where the branch ends 31-34 are collected, the Cu external pipe 4h, and a connection pipe 41 configured by connecting an Al first pipe member 42 and a Cu second pipe member 43. One ends of the heat transfer pipes 21-24 and the branch sections 31-34 of the collecting pipe 30 are respectively brazed, the collecting section 35 of the collecting pipe 30 is brazed to the first pipe member 42 of the connecting pipe 41, and an end of the external pipe 4h is brazed to the second pipe member 43 of the connecting pipe 41.
YOKOYAMA SHOICHI
TANIGUCHI KATSUSHI
YAMAMOTO KENSHO
SUGIO TAKASHI
TAKAHASHI MASATOSHI
| JPH11183075A | 1999-07-06 | |||
| JP2005055081A | 2005-03-03 |
| EP2439478A2 | 2012-04-11 |