US 11,988,270 B2
Electric drive assembly for electric vehicle, and electric vehicle
Xin Fan, Shanghai (CN); Chuanwei Ren, Shanghai (CN); Zhengcheng Huang, Shanghai (CN); Xiaochao Chu, Shanghai (CN); Yangpeng Shi, Shanghai (CN); and Huiwen Zheng, Shanghai (CN)
Assigned to NIO TECHNOLOGY (ANHUI) CO., LTD, Hefei (CN)
Filed by NIO TECHNOLOGY (ANHUI) CO., LTD, Hefei (CN)
Filed on Dec. 1, 2022, as Appl. No. 18/060,668.
Claims priority of application No. 202111460732.5 (CN), filed on Dec. 2, 2021.
Prior Publication US 2023/0175579 A1, Jun. 8, 2023
Int. Cl. B60K 1/00 (2006.01); B60K 17/04 (2006.01); B60K 17/08 (2006.01); B60K 17/16 (2006.01); F16H 1/22 (2006.01); F16H 37/08 (2006.01); F16H 48/08 (2006.01)
CPC F16H 37/0813 (2013.01) [B60K 1/00 (2013.01); B60K 17/08 (2013.01); B60K 17/165 (2013.01)] 9 Claims
OG exemplary drawing
 
1. An electric drive assembly for an electric vehicle, the electric drive assembly being provided with a transmission gearbox, wherein the transmission gearbox comprises a gearbox input shaft and intermediate shafts, wherein one end of the gearbox input shaft is configured to be connectable to an electric motor of the electric vehicle, and a sidewall of the gearbox input shaft is provided with a first-stage driving gear; and there are three intermediate shafts which are evenly distributed outside and around an axis of the gearbox input shaft, each intermediate shaft is provided with a first-stage driven gear, and the three first-stage driven gears are respectively meshed with the first-stage driving gear,
wherein the transmission gearbox further comprises a second-stage driven gear, coaxially disposed with the gearbox input shaft, each intermediate shaft is provided with a second-stage driving gear, the three second-stage driving gears are respectively meshed with the second-stage driven gear, such that the first-stage driving gear, the first-stage driven gear, the second-stage driving gears, and the second-stage driven gear together form a two-stage three-intermediate-shaft coaxial gear set; and
wherein the three second-stage driving gears are disposed around the second-stage driven gear.