Electromagnetic coupling armature assembly with counterweight
US6129194A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 13, 1998 |
| Grant date | Oct 10, 2000 |
| Priority date | — |
| Expiry date | Aug 13, 2018 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D27/112
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An armature assembly for a selectively engageable and disengageable electromagnetic coupling is provided. The armature assembly includes a hub having a central axis that is disposed radially outwardly, and mounted for rotation with, a shaft used to drive an air-conditioning compressor. The assembly also includes a resiliently flexible spider disposed radially outwardly of the hub. The spider is fixed against rotation relative to the hub, but is able to flex axially relative to the hub at a hinge. The armature assembly further includes an annular armature disc disposed radially outwardly of the hub and connected to a first side of the spider. Finally, the armature assembly includes a counterweight disposed on a second side of the spider. The counterweight may be integral with the spider or connected to the hub. An armature assembly in accordance with the present invention balances the dynamic loads present in the electromagnetic coupling without substantially affecting the living hinge of the resiliently flexible spider. The armature assembly is also able to retain the armature disc in the event of a failure of the spider.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.