Double contact electromagnetic contactor and starter for thermal engine incorporating it
US8446238B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 6, 2011 |
| Grant date | May 21, 2013 |
| Priority date | — |
| Expiry date | Jun 23, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H47/04
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A contactor including a plunger core (100), a pull-in winding (La), a holding winding (Lm), a moving contact plate (CM) and three contacts (PC+, PC1, PC2). The contactor has three operating states: a first state with no electrical contact between the contacts, a second state with electrical contact between first and second contacts and a third state with electrical contact between the first, second and third contact. The contactor also includes an electrically controllable micro-actuator (MS) to allow or prohibit, depending on the electric current which is applied thereto, commutation between the second and third operating states, the commutation being prohibited by the micro-actuator due to a force counteracting a thrust of the moving contact plate when the micro-actuator is electrically excited. Preferably, the micro-actuator is a micro-solenoid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.