Reflective optical encoder with contaminant protection
US10396635B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 24, 2016 |
| Grant date | Aug 27, 2019 |
| Priority date | — |
| Expiry date | Sep 14, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66B11/043
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A reflective optical encoder (40) assembly includes a motor and brake assembly at least partially in a motor and brake housing (42). An encoder housing is at least partially received in a cavity (34) of the motor and brake housing. The reflective optical encoder includes an encoder disk (50) and an encoder shaft (44) that rotate with a shaft of the motor. The assembly includes holes (54, 56, 58) in the encoder disk. A seal (80) at an interface between the encoder housing and the encoder shaft to prevent contaminants from the cavity from entering the encoder housing and a packing inside the encoder housing. A packing (84) is situated to prevent any dust or debris associated with the encoder shaft rotating relative to the seal from getting on the encoder disk.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.