Ignition coil for internal combustion engine
US9897064B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 17, 2013 |
| Grant date | Feb 20, 2018 |
| Priority date | — |
| Expiry date | Nov 21, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F38/12
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An ignition coil for an internal combustion engine is provided which is equipped with a high-voltage connector terminal and a high-voltage output terminal. The high-voltage connector terminal is connected to a secondary coil. The high-voltage output terminal is to be joined to a spark plug. The high-voltage connector terminal has a tip portion with a rounded surface which elastically establishes an electrical contact with the surface of the high-voltage output terminal. The rounded surface serves to minimize the wear of the high-voltage connector terminal and the high-voltage output terminal which arises from rubbing therebetween during assembling or operation of the ignition coil, thus avoiding the adhesion of foreign objects to the contact surfaces and ensuring the stability of electric communication between the high-voltage connector terminal and the high-voltage output terminal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.