US 12,477,679 B2
Electronic unit for a voltage converter of a rotating electric machine
Manuel Falguier, Creteil (FR); Christopher Riche, Creteil (FR); and Philippe Mercier, Sable sur Sarthe (FR)
Assigned to VALEO EQUIPEMENTS ELECTRIQUES MOTEUR, Creteil (FR)
Appl. No. 18/261,219
Filed by VALEO EQUIPEMENTS ELECTRIQUES MOTEUR, Creteil (FR)
PCT Filed Jun. 20, 2022, PCT No. PCT/EP2022/066672
§ 371(c)(1), (2) Date Jul. 12, 2023,
PCT Pub. No. WO2022/268681, PCT Pub. Date Dec. 29, 2022.
Claims priority of application No. 2106718 (FR), filed on Jun. 23, 2021.
Prior Publication US 2024/0064920 A1, Feb. 22, 2024
Int. Cl. H05K 7/14 (2006.01); H02K 5/22 (2006.01)
CPC H05K 7/14329 (2022.08) [H02K 5/225 (2013.01); H05K 7/14322 (2022.08)] 20 Claims
OG exemplary drawing
 
1. An electronic unit for a voltage converter of a rotating electric machine comprising:
a first busbar comprising:
a first plate,
a first connection portion projecting from the first plate, on a first side of the first plate, the first connection portion comprising a first connection surface, the first connection surface forming a first angle with the first plate, the first connection surface being able to be welded to a second connection surface, facing and parallel to the first connection surface, of a third busbar of a power electronics module by a first laser weld using a first laser beam passing at a first interface between the first connection surface and the second connection surface,
a second busbar separate from the first busbar and comprising a second plate parallel to the first plate and located on a second side of the first plate, opposite the first side,
a first housing electrically isolating the first busbar from the second busbar,
wherein the first busbar or the second busbar comprises a first extension extending in line with the first connection surface, the first extension being able to block the first laser beam, and
wherein the first housing comprises a first free area in line with the first connection surface, the first free area being able to leave the first extension exposed for the first laser beam.