FLAT HEAT EXCHANGE TUBE, AND HEAT CARRIER-HEATING DEVICE AND AIR CONDITIONER FOR VEHICLE USING SAME
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United States of America Patent
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Issued Date -
Jul 7, 2016
app pub date -
Sep 4, 2014
filing date -
Sep 19, 2013
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Abstract
Provided are a flat heat exchange tube, a heat carrier-heating device, and an air conditioner for a vehicle by which it is possible to reduce thermal contact resistance and improve thermal conductivity. A flat heat exchange tube is provided with: a flat tube constituted of a pair of molded plates; and wavy inner fins that are inserted between the molded plates, tips protruding in one direction and tips protruding in another direction of the wavy inner fins being soldered to the inner surfaces of the pair of molded plates. The wavy inner fins are provided with expansion allowance portions in a wall surface between the tips allowing deformation in a direction by which the distance between the tips increases, the flat heat exchange tube being expandable through the expansion allowance portion in a state in which the tips between the pair of molded plates are soldered thereto.
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