Precisely positioned electromagnetic relay components
US5038126A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 1, 1990 |
| Grant date | Aug 6, 1991 |
| Priority date | — |
| Expiry date | Oct 1, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/4902
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electromagnetic relay 38 (FIG. 2) includes a cylindrical core 42 concentrically positioned within a coil assembly 40 and press fit into a frame 50, a resiliently mounted armature assembly 56, and electrical contacts 66,68, one mounted on the armature assembly 56 and one disposed in a fixed relationship to the frame 50. The coil assembly 40 is secured to the frame 50 by the use of extrusions 54 which precludes the need for a core head 24 and crush ribs 26 (FIG. 1). After assembling the relay 38, the core 42 is positioned by pressing the armature assembly 56 directly opposite the core 42 until the core 42 travels a predetermined distance beyond the electrical contact point for the contacts 66,68. This invention ensures precise positioning of the functional components and negates the accumulation of manufacturing tolerances in the relay 38.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.