PTC thermistor device
US6025771A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 22, 1999 |
| Grant date | Feb 15, 2000 |
| Priority date | — |
| Expiry date | Mar 22, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01C1/014
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A positive temperature coefficient (PTC) thermistor device for improving workability during assembly of a PTC thermistor element in a casing while eliminating risk of damaging electrode surfaces with enhanced element position stability. To this end, the casing is provided with an insulating guide section for guiding the PTC thermistor element at or near one end, causing the PTC thermistor element to be elastically held by first and second terminals both at a position on one electrode surface which position is near the other edge of the PTC thermistor element and at a position centrally placed on the remaining electrode surface. The guide section essentially consists of first and second guide sections which oppose each other with the PTC thermistor element being sandwiched between, allowing PTC thermistor element to be held by either one of the first and second guide sections and by the first and second terminals. Further provided are hook sections for being latched by a hand tool or jig at a certain location near a contact section of either one of the terminals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.