Pivot joint structure for motor rotor
US7176596B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 13, 2005 |
| Grant date | Feb 13, 2007 |
| Priority date | — |
| Expiry date | Oct 13, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K5/1675
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention relates to a pivot joint structure of the motor rotor including a spindle and a snap ring. The spindle is centrally disposed in the rotor and the end thereof near the urging part has a scoop channel with smaller outer diameter. The urging part has at least one plane surface along the axial direction and the cross section is formed in a non-circular shape. The center hole of the snap ring takes the shape corresponding to that formed by the cross section(s) of the urging part and the gap therebetween provides a minimum space for the inserting in the urging part. Consequently, regardless of the assembly or disassembly of the rotor, the snap ring structure won't be affected and the deformation or fracture thereof won't take place.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.