US 12,089,375 B2
Circuit assembly with bus bar and elastic heat conductive member
Fumihiro Kuzuhara, Mie (JP)
Assigned to AUTONETWORKS TECHNOLOGIES, LTD., Mie (JP); SUMITOMO WIRING SYSTEMS, LTD., Mie (JP); and SUMITOMO ELECTRIC INDUSTRIES, LTD., Osaka (JP)
Appl. No. 17/773,994
Filed by AUTONETWORKS TECHNOLOGIES, LTD., Mie (JP); SUMITOMO WIRING SYSTEMS, LTD., Mie (JP); and SUMITOMO ELECTRIC INDUSTRIES, LTD., Osaka (JP)
PCT Filed Nov. 10, 2020, PCT No. PCT/JP2020/041865
§ 371(c)(1), (2) Date May 3, 2022,
PCT Pub. No. WO2021/100544, PCT Pub. Date May 27, 2021.
Claims priority of application No. 2019-207977 (JP), filed on Nov. 18, 2019.
Prior Publication US 2022/0394873 A1, Dec. 8, 2022
Int. Cl. H05K 7/20 (2006.01); H01H 1/62 (2006.01); H01H 9/52 (2006.01); H01H 50/04 (2006.01); H01H 50/12 (2006.01); H01H 50/14 (2006.01); H01R 4/34 (2006.01); H01R 25/14 (2006.01); H05K 7/06 (2006.01)
CPC H05K 7/2039 (2013.01) [H01H 50/047 (2013.01); H01H 50/12 (2013.01); H01H 50/14 (2013.01); H01R 25/142 (2013.01); H01R 25/145 (2013.01); H05K 7/06 (2013.01); H01H 1/62 (2013.01); H01H 9/52 (2013.01); H01R 4/34 (2013.01); H05K 7/20472 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A circuit assembly comprising:
a heat generation component;
bus bars that are connected to connecting portions of the heat generation component;
an insulating base member that holds the heat generation component and the bus bars; and
an elastic heat conductive member that is in thermal contact with the bus bars,
wherein the bus bars press the heat conductive member in a mounting direction in which the bus bars are mounted on the base member,
the positions of the bus bars in the mounting direction are defined as a result of the bus bars abutting against bus bar positioning portions in the mounting direction, the bus bar positioning portions being provided on the base member,
fixing portions for fixing the heat generation component are provided on the base member in a protruding manner in the mounting direction,
a protruding end face of one of the fixing portions is used as one of the bus bar positioning portions, the protruding end face extending in a direction different from the mounting direction,
the bus bars each include abutting portions, including a first abutting portion that is mounted on and faces the protruding end face of the one of the fixing portions in the mounting direction, and
the first abutting portion is fixed to the protruding end face of the one of the fixing portions together with the heat generation component, such that the first abutting portion is interposed between the protruding end face and the heat generation component in the mounting direction.