Electronically actuated retaining latch for AC-DC adapter removable plug assembly
US10790628B2 · kind B2 · utility
3Cited by
9References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 18, 2018 |
| Grant date | Sep 29, 2020 |
| Priority date | — |
| Expiry date | Aug 11, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01R31/065
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A power adapter has a solenoid actuated retaining latch controlled by an electronic circuit that detects the presence or absence of AC mains voltage. When the assembled AC-DC adapter and plug assembly are removed from the wall, the latch detects removal and unlocks the plug assembly for easy removal without undue force required by the user. The circuit is designed for minimal power consumption, and the solenoid only consumes power when it is engaging or disengaging the latch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.