Illuminated, water- and dust-proof switching element
US9368297B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Oct 11, 2012 |
| Grant date | Jun 14, 2016 |
| Priority date | — |
| Expiry date | Oct 13, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2239/034
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An illuminated, waterproof and dust-proof switching element for converting a linear movement of a push button into an electrical switching signal, has a housing and a cap which is axially displaceable within the housing along a stroke path between two end bearings. The cap has a protective membrane for external sealing that is formed from a flexible plastic material by way of multicomponent injection molding. The switching element includes within the housing at least four contacts, a pressure compensation element, a circuit board on which at least one push button and at least two lighting elements are arranged, a silicone pad as a restoring element, a guide, an end stop, a cap with integrally molded protective membrane, and a frame. At least two pairs of the contacts have a like contour including a linear arrangement in the region of a plug and rectangular arrangement in the interior.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.