CPC F28D 7/1653 (2013.01) [F28F 9/0224 (2013.01); F28F 2225/08 (2013.01)] | 4 Claims |
1. A heat exchanger comprising:
flat pipes arranged side by side in a predetermined step direction, each of the flat pipes comprising a passage for refrigerant; and
a header collecting pipe connected to the flat pipes and that extends along the predetermined step direction, wherein
the header collecting pipe includes:
a flat pipe-side header forming member into which the flat pipes are inserted; and
an opposite-side header forming member that faces the flat pipe-side header forming member, wherein
an internal space exists between the flat pipe-side header forming member and the opposite-side header forming member,
when viewed along the predetermined step direction:
the flat pipe-side header forming member has a flat pipe-side curved portion protruding toward the flat pipes, and
the opposite-side header forming member has:
an opposite-side curved portion protruding toward a side away from the flat pipes; and
an opposite-side straight portion extending straight from an end of the opposite-side curved portion,
an inner diameter of the opposite-side curved portion is smaller than an inner diameter of the flat pipe-side curved portion,
a surface of the opposite-side straight portion facing toward the flat pipes is in contact with an end surface of the flat pipe-side header forming member facing away from the flat pipes, and
the opposite-side straight portion does not face the internal space.
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