Electric brake actuator
US11287002B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 23, 2020 |
| Grant date | Mar 29, 2022 |
| Priority date | — |
| Expiry date | Dec 23, 2040 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2057/02082
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An electric brake actuator includes a housing, a three-stage planetary gear mechanism provided in the housing, the planetary gear mechanism having a first stage, a second stage, and a third stage that are sequentially meshed from one end to the other end of the planetary gear mechanism, and each stage of planetary gear mechanism comprising at least one planet gear, and a planet carrier supporting the planet gear; a motor provided in the housing; and at least one gear connected between the planetary gear mechanism and the motor, the at least one gear being arranged the motor to drive the planetary gear mechanism. The at least one planet gear of the first stage is made of a first material that is different from a second material of which the planet gear of the second stage or the planet gear of the third stage is made.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.