Electromagnetic relay
US8207803B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 19, 2009 |
| Grant date | Jun 26, 2012 |
| Priority date | — |
| Expiry date | Feb 4, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H50/643
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electromagnetic relay includes a coil, an armature that is electromagnetically attracted by the coil when current flows through the coil, two fixed contacts, a movable spring disposed to be movable to the fixed contacts, a conductive plate that is connected to the movable spring and including two movable contacts. The movable contacts are brought in contact with the fixed contacts respectively via the movable spring by the armature attracted by the coil. When the fixed contacts and the movable contacts are in contact, the fixed contacts are electrically connected to each other via the conductive plate. The movable spring is made of an insulating material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.