unit
By setting missing teeth at the connection between the motor, housing, and planetary gear mechanism, the vibration generation location is staggered, solving the problem of vibration overlap and amplification, and achieving vibration suppression and improved support performance.
CN123036453APending Publication Date: 2026-11-03JATCO LTD
Patent Information
- Application Number
- CN202480089201.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2024-03-05
- Filing Date
- 2024-11-22
- Publication Date
- 2026-11-03
AI Technical Summary
Technical Problem
Vibrations generated by planetary gear mechanisms and electric motors may overlap and be amplified during transmission, leading to increased vibration.
Method used
Design a unit structure so that the connection between the motor and the housing and the connection between the gear ring of the planetary gear mechanism and the housing do not overlap in the direction of the rotation axis. By setting missing teeth and non-connection parts, the vibration generation positions are staggered to avoid the overlap of vibrations.
Benefits of technology
It effectively reduces the probability of vibration amplification, suppresses vibration amplification generated by planetary gear mechanisms and motors, and improves support performance.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN123036453A_ABST
Abstract
Vibration amplification caused by vibration generated by a planetary gear mechanism and vibration generated by a motor is suppressed. The unit has: a housing; a motor housed in the housing; a planetary gear mechanism housed in the housing and coaxially arranged with the motor; a first connecting portion connecting the motor and an inner wall of the housing; and a second connecting portion connecting a ring gear of the planetary gear mechanism and the housing, the first connecting portion and the second connecting portion not overlapping when viewed in a direction of a rotational axis.
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Citation Information
Patent Citations
Driving device for vehicle
JP2011252532A
Power transmission device
WO2021137281A1