APPARATUS AND METHOD FOR MANUFACTURING HEAT EXCHANGER

WIPO Patent Application WO/2024/058360

A1

An apparatus for manufacturing a heat exchanger comprising a refrigerant tube comprises: a moving rod which is provided so as to be linearly movable along a first direction; and a tube expanding body which is provided so as to be connected to the moving rod so as to be linearly movable along the first direction, and is provided so as to be insertable into a tube base material of a refrigerant tube so as to enable the tube base material to expand outwardly when the tube expanding body is inserted into the tube base material by being moved by the moving rod. The tube expanding body comprises a plurality of groove forming protrusions which are formed on the outer surface of the tube expanding body so as to extend along a direction inclined from the first direction, and are provided so as to form a plurality of grooves in the inner surface of the tube base material when the tube expanding body is inserted into the tube base material by being moved by the moving rod.

JPH0999334	DEVICE AND METHOD FOR EXPANDING TUBE
JPS5916727	[Title of the device] Mechanical expander

CHO SUNGMIN (KR)
PARK YURIM (KR)
KOH YOUNGDEOG (KR)
PARK SANGJUN (KR)
PARK SUNGTAE (KR)
LIM JUNGSOO (KR)
HAN SUHYEON (KR)

PCT/KR2023/008162

March 21, 2024

June 14, 2023

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SAMSUNG ELECTRONICS CO LTD (KR)

B21D39/20; B21D41/02; B21D53/06

JPH039239U	1991-01-29
KR100715892B1	2007-05-08
KR20190095906A	2019-08-16
US4646548A	1987-03-03
JP2015150566A	2015-08-24

SELIM INTELLECTUAL PROPERTY LAW FIRM (KR)

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