Title:
車両用駆動装置
Document Type and Number:
Japanese Patent JP6915197
Kind Code:
B2
Abstract:
A speed reduction device (3) that has a rotary electric machine, a first planetary gear mechanism (31), and a second planetary gear mechanism (32), and a differential gear device are disposed coaxially with the rotary electric machine. The first planetary gear mechanism (31) is disposed on the rotary electric machine side relative to the second planetary gear mechanism (32) in an order of a power transmission path, and the first planetary gear mechanism (31) is disposed on the rotary electric machine side relative to the second planetary gear mechanism (32) along the axial direction (L). A helix angle of a helical tooth of the first planetary gear mechanism (31) and a helix angle of a helical tooth of the second planetary gear mechanism (32) are formed so that thrust forces (SF1, SF2) are in mutually opposite directions in the axial direction (L), and the helix angle (θ1) of the helical tooth of the first planetary gear mechanism (31) is larger than the helix angle (θ2) of the helical tooth of the second planetary gear mechanism (32).
Inventors:
Taiki Suyama
Hiroaki Sanji
Mitsuhiro Ichioka
Yuuki Kawaguchi
Hiroaki Sanji
Mitsuhiro Ichioka
Yuuki Kawaguchi
Application Number:
JP2019547550A
Publication Date:
August 04, 2021
Filing Date:
October 12, 2018
Export Citation:
Assignee:
Aisin Co., Ltd.
International Classes:
F16H1/46; B60K17/12; F16H48/08
Domestic Patent References:
| JP2001330111A | ||||
| JP9089063A | ||||
| JP2017158377A | ||||
| JP2015230052A | ||||
| JP2014095416A | ||||
| JP2001330085A |
Attorney, Agent or Firm:
Patent business corporation r&c