Sealing apparatus assembly for sealing a piezoactuator and method for sealing a piezoactuator
US7186143B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 17, 2005 |
| Grant date | Mar 6, 2007 |
| Priority date | — |
| Expiry date | Aug 17, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01R2201/26
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In a method and arrangement for sealing a piezoactuator having terminal pins (12) protruding from the piezoactuator and a top plate (14) surmounting the piezoactuator, the top plate is provided with openings (16) to enable the terminal pins (12) to pass through. In order to ensure a reliable seal even for comparatively thin top plates (14) in particular, the invention proposes placing a sealing-ring (28) made from an elastic sealant material on each of the terminal pin sections (30) protruding from the openings (16), so that the sealing ring fits tightly to a circumferential surface (32) of the terminal pin section (30), as well as to the top plate (14), forming a seal, and being pressure-injected into the top plate (14) by means of a plastic extrusion coating (arrows in FIG. 1).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.