Touch type key device

• Main Author: NING CHUANG
• Format: Patent
• Language: Chinese; English
• Published: 11.10.2019
• Subjects: BASIC ELECTRONIC CIRCUITRY; ELECTRICITY; PULSE TECHNIQUE

The utility model discloses a touch type key device. Including a circuit board, the circuit board is provided with a circuit board body, wherein the processor module is used for identifying inductionsignals, the resistance-capacitance circuit module is used for forming a resistance-capacitance circuit through touch, the external interface is connected with the processor module, the resistance-capacitance circuit module comprises a touch type key unit and a resistance unit, the touch type key unit forms capacitance through touch, and the touch type key unit is connected with the processor module through the resistance unit. According to the utility model, a touch operation mode is adopted, which is different from traditional mechanical triggering such as pressing, rotating and the like, the size of the key switch is greatly reduced, and the key switch is especially suitable for small and precise electronic equipment. In addition, since the switch is not provided with a protruding switch button with a large siz