Electrical device such as a network protector relay with printed circuit board seal
US5844781A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 16, 1996 |
| Grant date | Dec 1, 1998 |
| Priority date | — |
| Expiry date | Sep 16, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K5/062
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An electrical device such as a network protector relay is protected from ambient conditions by a housing having a printed circuit board (PCB) providing a seal for the housing and air and water tight connections between relay leads and external leads. The relay leads are soldered in first plated through apertures in the PCB substrate while the external leads are soldered in second plated through apertures connected to corresponding first apertures by conductive traces on the substrate. Potting material confined by a potting dam electrically insulates the solder connections on the external side of the PCB. Components can be mounted on either side of the substrate by soldering the component pins or leads in additinal plated through apertures electrically connected to relay and/or external leads by the conductive traces. Components such as connectors or indicators, including, for example, light emitting diodes, can be supported in the potting dam and connected to appropriate ones of the external leads insulated by the potting material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.