Governor and motor assembly
US4958096A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 16, 1989 |
| Grant date | Sep 18, 1990 |
| Priority date | — |
| Expiry date | Jun 16, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H35/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A governor and motor assembly of a fractional horsepower electric motor adapted to control the efficient operation of the motor utilizing simple structural components. The governor is responsive to the centrifugal forces of the rotating rotor shaft of the motor and is attached to the end thereof. The governor includes a carrier plate affixed to the shaft and a pivotable lever mounted within a groove in the carrier plate. A first end of the pivotable lever is connected to the carrier plate by an extension spring which acts to move the lever to its at rest or actuated position. As a predetermined rotational velocity is reached, the lever pivots at the groove to pivot away from the electrical switch aligned axially with the rotor shaft. The electrical switch, in turn, is mounted to a terminal board fixedly mounted to the motor housing to thereby positionally maintain the governor on the motor shaft as well as retain the associated capacitor. In this manner, a minimum of mounting hardware is needed to assemble the governor and control components. The motor housing is provided with indirect venting to prevent fluid splash from damaging the internal components of the motor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.