Control unit with thermal protection and an electrical heating device comprising the control unit
US7148453B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 3, 2004 |
| Grant date | Dec 12, 2006 |
| Priority date | — |
| Expiry date | Dec 3, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K2203/176
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An overheating protection system for a control unit includes an interrupter element, which, in its initial position defined with respect to a circuit board, electrically connects the opposite facing ends of at least one track on the circuit board, and an actuating element which is activated with the overheating of the transistor, and which on actuation against the interrupter element takes effect and releases it at least so far from the tract that the electrical connection is interrupted. A preassembled actuating unit for the interrupter element of the overheating protection is comprises an accommodation housing, in which an actuating element is accommodated and which can be brought into interaction with the interrupter element and which is held releasably by a one-piece latching element formed on the accommodation housing under pretension. An electrical heating device with a control unit protected against overheating is also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.