Plug-in module for electronic device having self-contained heat sink
US3987344A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 10, 1975 |
| Grant date | Oct 19, 1976 |
| Priority date | — |
| Expiry date | Mar 10, 1995 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K2201/10946
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A small plug-in module includes a combined housing and heat sink, and plug-in terminals cooperating with mating terminals on a chassis. The module includes guiding structure to facilitate insertion of the module on the chassis, which may also form terminals for providing a ground connection to the module. The module includes an electronic circuit with components, at least one of which develops substantial heat, such as a transistor. The components are positioned on a substrate which is mounted in heat conducting relation on the base of the housing. The base and/or sides of the housing are constructed to provide sufficient mass to dissipate the heat developed by the components. The housing-heat sink may have recesses into which spring inserts are placed to resiliently engage pins extending from the chassis to guide the module into position and provide a ground connection thereto. Alternatively, terminal pins can be secured to the heat sink to engage sockets on the chassis. A header is provided on the module from which plug-in contacts extend for connection to sockets on the chassis, to connect the circuit of the module to the chassis. The guiding of the module by the grounding pins …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.