Title:
FINNED TUBULAR HEAT SINK AND PRODUCTION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2016/060423
Kind Code:
A1
Abstract:
The present invention provides a finned tubular heat sink, which has cooling fins coupled to a tube, and a production method therefor. The finned tubular heat sink according to the present invention comprises multiple cooling fins, a tube, and multiple contractile rings. The cooling fins are provided with a through hole, a collar extending aside from the edge of the through hole, and a sloping part formed around the through hole so as to slope with respect to the central axis of the through hole. The cooling fins are stacked such that the central axes of the through holes are aligned. The tube is inserted in the through holes of the respective cooling fins, with the shape of the outer circumferential surface thereof formed to allow contact with the collars. The contractile rings are provided with a bore, in which the collar of each of the multiple cooling fins is inserted, and a pair of customized sloping surfaces formed on either cross section thereof at the same angle as the sloping parts so as to contact the sloping parts of neighboring cooling fins among the cooling fins. The contractile rings are mounted so as to press the collars of the respective cooling fins by residual stresses. The present invention is configured such that as the contractile rings, which are expanded before the tube is fitted, contract after the tube is fitted, the contractible rings press the collars of the cooling fins, thereby keeping the collars in contact with the outer circumferential surface of the tube. Accordingly, the present invention can prevent the occurrence of thermal contact resistance caused by a contact failure between the cooling fins and the tube.
Inventors:
CHO HAN YONG (KR)
Application Number:
PCT/KR2015/010736
Publication Date:
April 21, 2016
Filing Date:
October 12, 2015
Export Citation:
Assignee:
CHO HAN YONG (KR)
International Classes:
F21V29/00
Foreign References:
| JP2004153001A | 2004-05-27 | |||
| JPH10185466A | 1998-07-14 | |||
| JP2012142408A | 2012-07-26 | |||
| KR19990054604A | 1999-07-15 | |||
| US20070256810A1 | 2007-11-08 |
Attorney, Agent or Firm:
DYNE PATENT & LAW FIRM (KR)
특허법인 다인 (KR)
특허법인 다인 (KR)
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