Electromagnetic relay
US9159515B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 3, 2013 |
| Grant date | Oct 13, 2015 |
| Priority date | — |
| Expiry date | Aug 8, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H51/2281
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electromagnetic relay includes: a yoke capable of changing a magnetic pole thereof by an electromagnet; an armature that is magnetized by a permanent magnet and contacts with or separates from the yoke in accordance with the magnetic pole of the yoke; a movable contact that contacts with a fixing contact; an elastic body that biases the movable contact; and a pressing member that presses the elastic body in accordance with a movement of the armature to cause the movable contact to at least contact with or separate from the fixing contact, wherein a cover fixing the permanent magnet and the armature, and the pressing member are integrally formed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.