US 12,348,104 B2
Electric assembly and vehicle having the same
Guangquan Chen, Shenzhen (CN); Daqi Chen, Shenzhen (CN); Chunlei Liu, Shenzhen (CN); and Shuanghong Jing, Shenzhen (CN)
Assigned to BYD COMPANY LIMITED, Shenzhen (CN)
Filed by BYD COMPANY LIMITED, Shenzhen (CN)
Filed on May 3, 2024, as Appl. No. 18/654,993.
Application 18/654,993 is a continuation of application No. 18/110,267, filed on Feb. 15, 2023, granted, now 12,021,434.
Application 18/110,267 is a continuation of application No. 16/969,400, granted, now 11,735,974, issued on Aug. 22, 2023, previously published as PCT/CN2019/073413, filed on Jan. 28, 2019.
Claims priority of application No. 201810146302.8 (CN), filed on Feb. 12, 2018; and application No. 201820254974.6 (CN), filed on Feb. 12, 2018.
Prior Publication US 2024/0291342 A1, Aug. 29, 2024
Int. Cl. H02K 5/12 (2006.01); F16H 57/04 (2010.01); H02K 5/20 (2006.01); H02K 7/00 (2006.01); H02K 7/116 (2006.01)
CPC H02K 5/12 (2013.01) [F16H 57/04 (2013.01); H02K 5/20 (2013.01); H02K 7/006 (2013.01); H02K 7/116 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An electric assembly, comprising:
a box assembly, wherein a mounting plate is disposed in the box assembly, and the mounting plate divides a space within the box assembly into a motor holding cavity and a transmission holding cavity;
a motor, wherein the motor is disposed in the motor holding cavity and comprises a motor shaft; and
a transmission, wherein the transmission is disposed in the transmission holding cavity, the transmission comprises a main shaft having a first gear disposed around the main shaft, the motor is power-coupled to the transmission through the motor shaft coupling with the main shaft at an overlapping region of the motor shaft and the main shaft, and a bearing is disposed at the overlapping region,
wherein the transmission further includes a second gear, a third gear, and a differential assembly, the first gear is power-coupled to the second gear, the second gear is power-coupled and coaxial to the third gear, the differential assembly has a fourth gear disposed around the differential assembly, and the third gear is power-coupled to the differential assembly via the fourth gear,
wherein a first connection line is a connection line between a center of the first gear and a center of the second gear, a second connection line is a connection line between the center of the second gear and a center of the differential assembly, and the first connection line is in an obtuse angle with the second connection line, and
wherein a diameter of the fourth gear is greater than a diameter of the third gear, and a diameter of the second gear is greater than a diameter of the first gear.