Electromagnetic actuating apparatus
US9941042B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 14, 2014 |
| Grant date | Apr 10, 2018 |
| Priority date | — |
| Expiry date | Jun 14, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F2007/1661
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electromagnetic actuating apparatus, in particular a proportional magnet or switching magnet, includes a magnet armature (4) guided for axial movement in a pole tube (2). The pole tube is at least partially surrounded by a coil winding and is adjoined by a pole core (10) via a separating region (20) forming a magnetic decoupling. On energization of the coil winding (52), a magnetic force acts on the armature (4) to move the armature (4) in the direction of the pole core (10) within a travel area. At least one insert (28) of ferromagnetic material with a preset axial thickness is between the armature (4) and the pole core (10) to shorten, as desired, the axial length of the travel area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.