ELECTROSTATIC CAPACITY TYPE SWITCH

• Main Authors: ABE KAZUTERU, KOBAYASHI SHINJI
• Format: Patent
• Language: English; Japanese
• Published: 02.02.2015
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRIC SWITCHES; ELECTRICITY; EMERGENCY PROTECTIVE DEVICES; RELAYS; SELECTORS

PROBLEM TO BE SOLVED: To provide an electrostatic capacity type switch which allows a user to surely recognize the switch-on state during switch-on operation, regardless of existence of the surrounding vibration source.SOLUTION: An electrostatic capacity type switch includes a push switch knob 10 being bonded to the upper surface of a diaphragm 11, a detection electrode body 15 attached to the diaphragm 11 corresponding to the switch knob 10, and a circuit board 18 having a ground electrode body 17 facing the detection electrode body 15 at a certain distance L. Certain change in the electrostatic capacitance between the detection electrode body 15 and ground electrode body 17 due to push operation of the switch knob 10 brings about the switch-on state of the electrostatic capacity type switch, and the electrostatic capacity type switch is further provided with click feeling generation means 11a interlocked with the push operation of the switch knob 10 to generate click feeling, and to generate a return force for energizing the switch knob 10 toward the original position thereof. 【課題】周囲の振動源の存在に拘らず，スイッチオン操作時には，スイッチオン状態をユーザに確実に認識させ得るようにした静電容量式スイッチを提供する。【解決手段】ダイヤフラム１１の上面に接着されるプッシュ可能なスイッチノブ１０と，このスイッチノブ１０に対応してダイヤフラム１１に付設される検出電極体１５と，検出電極体１５に一定の距離Ｌを置いて対向する接地電極体１７を有する回路基板１８とを備え，スイッチノブ１０のプッシュ操作による検出電極体１５及び接地電極体１７間の静電容量の一定の変化がスイッチオン状態をもたらす静電容量式スイッチであって，スイッチノブ１０のプッシュ操作に連動してクリック感を発生すると共に，該スイッチノブ１０をその原位置に向かって付勢する戻し力を発生するクリック感発生手段１１ａを備える。【選択図】 図２