Capacitance sensing switch module
US8729432B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 24, 2011 |
| Grant date | May 20, 2014 |
| Priority date | — |
| Expiry date | May 24, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K2217/9651
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A capacitance sensing switch module is provided. The capacitance sensing switch module for controlling a cooktop includes a plate, at least one key, an insulating pad, a circuit board and at least one foil. The plate is disposed in a side of the cooktop and has at least one hole passing through the plate. The key is disposed in the hole. The insulating pad is disposed between the key and the plate. The key and the plate are separated by the insulating pad. The circuit board is disposed under the plate. The foil is disposed on the circuit board and on the position corresponding to the key. There is an insulation gap between the foil and the key.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.