Transverse driving assembly

Patent metadata

Field	Value
Publication number	US-12576709-B2
Application number	US-202218849360-A
Country	US
Kind code	B2
Filing date	Mar 23, 2022
Priority date	Mar 23, 2022
Publication date	Mar 17, 2026
Grant date	Mar 17, 2026

Abstract

A transverse drive assembly includes a power source, a transmission mechanism, and a reduction mechanism. The transmission mechanism includes first and second shafts arranged in parallel. The first shaft is connected to the power source and is provided thereon with a first gear and a third gear, and the second shaft includes a second gear and a fourth gear. The first gear is meshed with the second gear, and the third gear is meshed with the fourth gear. The first gear is rotationally connected to the first shaft through a clutch or the second gear is rotationally connected to the second shaft through a clutch, and the third gear is connected to the first shaft through a clutch or the fourth gear is connected to the second shaft through a clutch. The reduction mechanism is sleeved on the second shaft and connected to the differential for transmission.

First claim

What is claimed is:

1 . A transverse drive assembly, comprising:
a power source; a transmission mechanism that comprises a first shaft and a second shaft arranged in parallel, the first shaft is connected to the power source for transmission, the first shaft is provided thereon with a first gear and a third gear, the second shaft is provided thereon with a second gear and a fourth gear, the first gear is meshed with the second gear for transmission, and the third gear is meshed with the fourth gear for transmission; and a reduction mechanism, wherein both the second gear and the fourth gear are sleeved on the second shaft, and a first clutch that is respectively engaged with the second gear and the fourth gear is sleeved on the second shaft, the second gear is rotationally connected to the second shaft for transmission through the first clutch, the fourth gear is connected to the second shaft for transmission through the first clutch, and the reduction mechanism is sleeved on the second shaft and connected to a differential for transmission, the first clutch is provided between the second gear and the fourth gear, and comprises a first elastic member, a second elastic member, a first toothed disc, a second toothed disc, a first coil, a first armature disc, and a second armature disc; the first toothed disc and the second toothed disc are both sleeved on the second shaft, so that the first toothed disc and the second toothed disc are configured to move axially relative to the second shaft and rotate synchronously; the second gear is provided thereon with first end face teeth engaged with the first toothed disc, and the fourth gear is provided thereon with second end face teeth engaged with the second toothed disc; the first armature disc and the second armature disc are respectively connected to the first toothed disc and the second toothed disc for transmission; one end of the first elastic member is connected to the second shaft, the other end of the first elastic member is connected to the first armature disc, and the first elastic member is provided with a preload force so as to place the first toothed disc in a position engaging with the first end face teeth; one end of the second elastic member is connected to the second shaft, the other end of the second elastic member is connected to the second armature disc, and the second elastic member is provided with a preload force so as to place the second toothed disc in a position engaging with the second end face teeth; and the first coil is provided between the first armature disc and the second armature disc, and is configured to be attracted and connected to the first armature disc and the second armature disc respectively.

2 . The transverse drive assembly according to claim 1 , wherein the second shaft is a hollow shaft, and sleeved on an output half shaft on a side of the differential.

3 . The transverse drive assembly according to claim 2 , wherein the first gear is sleeved on the first shaft, the fourth gear is sleeved on the second shaft, a second clutch is provided between the first gear and the first shaft, and a third clutch is provided between the fourth gear and the second shaft.

4 . The transverse drive assembly according to claim 1 , wherein:
the reduction mechanism comprises a sun gear, a planetary carrier, an inner ring gear, and a planetary gear, and wherein the sun gear is sleeved on the second shaft, the inner ring gear is coaxially sleeved on an outer side of the sun gear, the planetary gear is provided between the inner ring gear and the sun gear and meshes with the inner ring gear and the sun gear respectively, the planetary gear is connected to the planetary carrier through a planetary shaft, and the planetary carrier is connected to a differential housing.

5 . The transverse drive assembly according to claim 4 , wherein:
the planetary carrier and the differential housing are fixedly connected through screws/bolts or welding; or the planetary carrier and the differential housing are an integrated structure.

6 . The transverse drive assembly according to claim 5 , wherein the first gear is sleeved on the first shaft, the fourth gear is sleeved on the second shaft, a second clutch is provided between the first gear and the first shaft, and a third clutch is provided between the fourth gear and the second shaft.

7 . The transverse drive assembly according to claim 4 , wherein the first gear is sleeved on the first shaft, the fourth gear is sleeved on the second shaft, a second clutch is provided between the first gear and the first shaft, and a third clutch is provided between the fourth gear and the second shaft.

8 . The transverse drive assembly according to claim 1 , wherein the first gear is sleeved on the first shaft, the fourth gear is sleeved on the second shaft, a second clutch is provided between the first gear and the first shaft, and a third clutch is provided between the fourth gear and the second shaft.

9 . The transverse drive assembly according to claim 8 , wherein:
the second clutch comprises a third elastic member, a third toothed disc, a third coil, and a third armature disc; the third toothed disc is sleeved on the first shaft, so that the third toothed disc is configured to move axially relative to the first shaft and rotate synchronously; the first gear is provided thereon with third end face teeth engaged with the third toothed disc, and the third armature disc is connected to the third toothed disc for transmission; one end of the third elastic member is connected to the first shaft, the other end of the third elastic member is connected to the third armature disc, and the third elastic member is provided with a preload force so as to place the third toothed disc in a position separating from the third end face teeth; the third coil is provided between the first gear and the third armature disc; the third clutch comprises a fourth elastic member, a fourth toothed disc, a fourth coil, and a fourth armature disc; and the fourth toothed disc is sleeved on the second shaft, so that the fourth toothed disc is configured to move axially relative to the second shaft and rotate synchronously; the fourth gear is provided thereon with fourth end face teeth engaged with the fourth toothed disc, and the fourth armature disc is connected to the fourth toothed disc for transmission; one end of the fourth elastic member is connected to the second shaft, the other end of the fourth elastic member is connected to the fourth armature disc, and the fourth elastic member is provided with a preload force so as to place the fourth toothed disc in a position separating from the fourth end face teeth; the fourth coil is provided between the fourth gear and the fourth armature disc.

10 . The transverse drive assembly according to claim 1 , wherein:
the first coil comprises a first branch coil and a second branch coil arranged in parallel axially, and the first branch coil is provided with a magnetic shielding member at an end close to the second armature disc, and the second branch coil is provided with a magnetic shielding member at an end close to the first armature disc, so that the first branch coil is configured to attract the first armature disc only after being energized, and the second branch coil is configured to attract the second armature disc only after being energized.

11 . The transverse drive assembly according to claim 1 , wherein a first shaft shoulder is provided on the second shaft, and both the first elastic member and the second elastic member are connected to the second shaft through the first shaft shoulder.

Assignees

• Jing Jin Electric Tech Co Ltd

Inventors

• Yu Ping
• Li Jianwen
• Wang Fei
• Cao Yang

Classifications

• F16H37/046

  with an additional planetary gear train, e.g. creep gear, overdrive · CPC title

• B60K17/08

  of mechanical type · CPC title

• B60K17/02

  characterised by arrangement, location, or kind of clutch · CPC title

• F16H2200/0034

  the gear ratios comprising two forward speeds · CPC title

• F16H2200/0021

  specially adapted for electric vehicles · CPC title