| CPC F28F 9/0246 (2013.01) [F28D 1/05391 (2013.01)] | 14 Claims |
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1. A header tank, which is provided in a heat exchanger having a two-row structure comprising a first-row tube and a second-row tube spaced apart from each other at a predetermined interval in a width direction, the header tank comprising:
a header provided at one end of the first-row tube and one end of the second-row tube based on a longitudinal direction and comprising a first header part coupled to one end of the first-row tube, a second header part coupled to one end of the second-row tube, and a header central part configured to connect the first header part and the second header part;
a first tank coupled to the first header part to define a first internal space;
a second tank spaced apart from the first tank at a predetermined interval and coupled to the second header part to define a second internal space; and
a plurality of communication pipes provided between the first tank and the second tank and configured to allow the first internal space and the second internal space to communicate with each other,
wherein the plurality of communication pipes is disposed to be spaced apart from one another at predetermined intervals in the width direction,
wherein the communication pipes are each formed by coupling first and second pipes separated from each other, the first pipe is integrated with the first tank and protrudes in a direction from the first tank toward the second tank, and the second pipe is integrated with the second tank and protrudes in a direction from the second tank toward the first tank.
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