Title:
HEAT EXCHANGE TUBE, HEAT EXCHANGER AND HEAT PUMP UNIT
Document Type and Number:
WIPO Patent Application WO/2019/210690
Kind Code:
A1
Abstract:
Disclosed are a heat exchange tube, a heat exchanger and a heat pump unit. The heat exchange tube comprises a tube body (10) and fins (20) arranged on an outer surface of the tube body (10). The fin (20) comprises: a fin root portion (23) arranged on the outer surface of the tube body (10); transverse fin portions (21) arranged at the top of the fin root portion (23) and extending to two sides of the fin root portion (23); and fin top portions (22) arranged at the top of the transverse fin portion (21) and configured to be in a sawtooth shape, with recesses in the sawtooth extending to the transverse fin portions (21). The heat exchange tube is beneficial to enlarging the heat exchange area of the fin top portions (22) and thinning a liquid film, and the fin top portions (22), which are in a sawtooth shape, make it easy for a refrigerant to flow, thus improving the condensation performance. The transverse fin portion (21) extends to two sides of the fin (20) to form a lower layer of passages and an upper layer of passages which facilitate evaporation and condensation, so as to balance both the evaporation properties and the condensation properties of the heat exchange tube.
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Inventors:
LIU HUA (CN)
ZHANG ZHIPING (CN)
YUE QINGXUE (CN)
HU DONGBING (CN)
WANG CHUNLIAN (CN)
ZHANG YING (CN)
YANG XUFENG (CN)
ZHANG ZHIPING (CN)
YUE QINGXUE (CN)
HU DONGBING (CN)
WANG CHUNLIAN (CN)
ZHANG YING (CN)
YANG XUFENG (CN)
Application Number:
PCT/CN2018/121202
Publication Date:
November 07, 2019
Filing Date:
December 14, 2018
Export Citation:
Assignee:
GREE ELECTRIC APPLIANCES INC ZHUHAI (CN)
International Classes:
F28F1/42
Foreign References:
| CN108387131A | 2018-08-10 | |||
| CN101004337A | 2007-07-25 | |||
| CN107782192A | 2018-03-09 | |||
| CN1731066A | 2006-02-08 | |||
| CN103486894A | 2014-01-01 | |||
| CN201803635U | 2011-04-20 | |||
| US20140034277A1 | 2014-02-06 |
Other References:
See also references of EP 3736521A4
Attorney, Agent or Firm:
CCPIT PATENT AND TRADEMARK LAW OFFICE (CN)
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