Simplified solenoid assembly having a press fit stop and method of assembling same
US5886607A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 26, 1997 |
| Grant date | Mar 23, 1999 |
| Priority date | — |
| Expiry date | Nov 26, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F7/1607
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The solenoid assembly comprises a frame having first and second sides with respective first and second frame apertures extending through the first and second sides. A coil assembly having a first end, a second end and a cavity extending between the first end and the second end. The coil assembly is received in the frame such that the cavity is substantially aligned with the first frame aperture. A plunger is slideably received through the first frame aperture in the frame and into the cavity of the coil assembly. A stop is engaged with an inner surface of the first frame aperture to secure the coil assembly in the frame such that the stop mates with a mating pole face of the plunger. A biasing member, such as a spring, can be positioned between the plunger and the stop, for biasing the plunger toward a de-energized position. The stop preferably has a tapered outer region, for being inserted through the first frame aperture and into the cavity, a substantially flat outer region, for engaging with the inner surface of the first frame aperture, and a barb formed between the tapered outer region and the substantially flat outer region for engaging against the first side portion of the …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.