US 12,447,550 B2
Ultrasonic welding system and power module package for power converting apparatus to which substrate where connection member is ultrasonic welded by using the same is applied
Yun Hwa Choi, Busan (KR); and Jung Min Park, Bucheon-si (KR)
Assigned to JMJ Korea Co., Ltd., Busan (KR)
Filed by JMJ Korea Co., Ltd., Busan (KR)
Filed on Feb. 14, 2024, as Appl. No. 18/442,063.
Claims priority of application No. 10-2023-0089928 (KR), filed on Jul. 11, 2023.
Prior Publication US 2025/0018498 A1, Jan. 16, 2025
Int. Cl. B23K 20/10 (2006.01); B23K 37/04 (2006.01)
CPC B23K 20/10 (2013.01) [B23K 37/04 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An ultrasonic welding system comprising:
a centering aligning unit which aligns and centers connection members to be ultrasonic welded onto a substrate;
an ultrasonic welding part which ultrasonic welds and bonds the connection members aligned by the centering aligning unit onto the substrate; and
a picker which picks the connection members to be transferred to the centering aligning unit and re-picks the connection members aligned by the centering aligning unit to be transferred to ultrasonic welding positions on the substrate fixed to the ultrasonic welding part,
wherein the centering aligning unit comprises:
a centering zone on which the connection member transferred by the picker is placed and fixed;
a centering unit which aligns and centers the connection member on the centering zone; and
a vacuum-formed hole which is formed at the middle of the centering zone to provide a negative pressure and to fix the connection member,
wherein the centering unit comprises:
a plurality of centering jaws which is spaced apart from each other by the same interval on a concentric circle so as to stroke back and forth toward the center of the centering zone;
a centering block which comprises the centering zone in the middle at the upper part thereof and guides the stroke of the centering jaws back and forth;
a first cylinder which is combined to one side of the centering block and strokes each centering jaw forward; and
a second cylinder which is combined to the other side of the centering block and strokes each centering jaw backwards.