Electrically controlled switching device including shape memory alloy element
US10242827B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 13, 2016 |
| Grant date | Mar 26, 2019 |
| Priority date | — |
| Expiry date | Oct 27, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H71/145
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electrically controlled switching device includes a support, a first contact coupled to the support, a second contact coupled to the support, an SMA element operably connected with the second contact, a sensor positioned on or adjacent to the SMA element, and a controller in communication with the sensor. The SMA element is configured to transform between a first shape and a different second shape responsive to an electrical pulse heating the SMA element to a transformation temperature. The sensor is configured to detect a detected temperature of the SMA element. The controller is configured to control the electrical pulse heating the SMA element. The controller receives signals from the sensor indicative of the detected temperature of the SMA element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.