Title:
車両用駆動装置
Document Type and Number:
Japanese Patent JP6849092
Kind Code:
B2
Abstract:
A speed reduction device (3) that has a first planetary gear mechanism (31), a second planetary gear mechanism (32), and a differential gear device are disposed coaxially with a 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 (θ1) of a helical tooth of the first planetary gear mechanism (31) and a helix angle (θ2) 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). A speed reduction ratio of the first planetary gear mechanism (31) is equal to or more than a speed reduction ratio of the second planetary gear mechanism (32).
Inventors:
Taiki Suyama
Hiroaki Sanji
Mitsuhiro Ichioka
Hiroaki Sanji
Mitsuhiro Ichioka
Application Number:
JP2019547549A
Publication Date:
March 24, 2021
Filing Date:
October 12, 2018
Export Citation:
Assignee:
Aisin AW Co., Ltd.
International Classes:
F16H1/46; F16H48/08; F16H48/10; H02K7/116
Domestic Patent References:
| JP2001330111A | ||||
| JP9089063A | ||||
| JP2017158377A | ||||
| JP2001330085A | ||||
| JP2004116408A | ||||
| JP2007125911A | ||||
| JP2004239335A | ||||
| JP2001295891A |
Attorney, Agent or Firm:
Patent business corporation r&c