知搜-全球专利检索

  1. 登录
  2. 注册
发明公开
CN104202030A 电容感应式按键 无效 - 驳回

电容感应式按键
摘要：
本发明提供一种电容感应式按键。本发明的电容感应式按键包括第一金属基板，第二金属基板，按键指示灯和电容感测电路；所述第一金属基板与所述第二金属基板以隔离部相隔离并分别与所述电容感测电路电连接；所述第一金属基板、隔离部、第二金属基板、按键指示灯依序叠置在一起；所述电容感测电路感测所述第一金属基板或第二金属基板被按压时由于第一金属基板或第二金属基板的形变或相互之间的距离改变所引起的所述第一金属基板与所述第二金属基板之间形成的电容的变化。本发明的电容感应式按键结构简单，能可靠地感应按键上的按压动作，并具有很好的耐磨性和使用寿命。
摘要（英）：

The invention provides a capacitive sensitive type key. The capacitive sensing type key comprises a first metal substrate, a second metal substrate, a key indicator light and a capacitance sensing circuit, wherein the first metal substrate and the second metal substrate are isolated from each other through an isolation part and respectively electrically connected with the capacitance sensing circuit; the first metal substrate, an isolation part, the second metal substrate and the key indicator light are orderly superposed; the capacitance sensing circuit is used for sensing the capacitance change formed between the first metal substrate and the second metal substrate, wherein the capacitance change is caused by the deformation of the first metal substrate or the second metal substrate or the distance change therebetween when the first metal substrate or the second metal substrate is pressed. The capacitive sensitive type key structure has simple structure, and can reliably sense the pressing action of the key, is good in abrasive resistance and service life.

0/0