HEAT EXCHANGER
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United States of America Patent
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Issued Date -
Mar 17, 2016
app pub date -
May 8, 2014
filing date -
May 10, 2013
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Abstract
Disclosed is a heat exchanger (100), comprising a heat exchange tube (10), fins (20) and rings (30), wherein the fin (20) comprises a tubular part (21), and the ring (30) is used for fastening the tubular part (21) onto the heat exchange tube (10). A pressure is exerted in an axial direction of the heat exchange tube (10) on the tubular parts (21) of fins (20) and the rings (30) which are alternately sheathed onto the heat exchange tube (10), so as to fit the tubular part (21) together with the ring (30) in such a way that one is sheathed onto the other, thereby fixing the tubular parts (21) of the fins (20) onto the heat exchange tube (10). When the diameter of the heat exchange tube is relatively small, the tube expansion technique cannot be used for the connection of the heat exchange tube and the fins, and the heat exchanger (100) can avoid the complicated soldering process, thereby improving the product quality, and reducing the manufacturing costs of the product and the equipment investment.
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