US 11,878,361 B2
Ultrasonic joining horn
Takahiro Sakurai, Nagoya (JP); Kosuke Suzuki, Toyota (JP); and Kota Ohata, Toyota (JP)
Assigned to Prime Planet Energy & Solutions, Inc., Tokyo (JP)
Filed by PRIME PLANET ENERGY & SOLUTIONS, INC., Tokyo (JP)
Filed on Jul. 28, 2022, as Appl. No. 17/876,020.
Claims priority of application No. 2021-130090 (JP), filed on Aug. 6, 2021.
Prior Publication US 2023/0045159 A1, Feb. 9, 2023
Int. Cl. B23K 20/10 (2006.01)
CPC B23K 20/106 (2013.01) 7 Claims
OG exemplary drawing
 
1. An ultrasonic joining horn that can generate ultrasonic vibration in a predetermined vibration direction, the ultrasonic joining horn comprising:
a base portion;
a stand portion that rises from an upper surface of the base portion; and
a pressure contact portion formed of a plurality of protrusions that protrude from an upper surface of the stand portion, wherein
each of the protrusions forming the pressure contact portion is formed into a pyramid shape or a truncated pyramid shape and the protrusions are arrayed,
when viewed from an upper side looking toward a lower side, at least a portion of a peripheral edge of a portion in which the protrusions are arrayed has a zigzag shape,
the zigzag portion is formed along at least one of the vibration direction and a perpendicular direction to the vibration direction,
the upper surface of the base portion has an exposed surface on which the stand portion is not formed;
a portion of a peripheral wall of the stand portion is formed in a corrugated plate shape, and
the portion of the peripheral wall of the stand portion having the corrugated plate shape corresponds to the zigzag portion of the peripheral edge of the portion in which the protrusions are arrayed.