TOUCH DETECTION DEVICE FOR USE IN WET AREA APPARATUS AND FAUCET DEVICE COMPRISING THE SAME

• Main Authors: HARA MASASHI, MATSUI HIDEYUKI, HATAKEYAMA MAKOTO, KAWANA KOHEI
• Format: Patent
• Language: English; Japanese
• Published: 19.04.2018
• Subjects: BASIC ELECTRIC ELEMENTS; BASIC ELECTRONIC CIRCUITRY; DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; ELECTRIC SWITCHES; ELECTRICITY; EMERGENCY PROTECTIVE DEVICES; FIXED CONSTRUCTIONS; PULSE TECHNIQUE; RELAYS; SELECTORS; SEWERAGE; SINKS; WATER SUPPLY

PROBLEM TO BE SOLVED: To provide a touch detection device capable of preventing a piezoelectric element from falling into a state of being exposed to humidity and droplets and preventing the function of a piezoelectric element from deteriorating.SOLUTION: There is provided a touch detection device A comprising a detection part 4 including a touch part 16 to be touched by an object, a piezoelectric element 6 that causes the touch part to oscillate, a detection circuit 14 including a drive circuit 24 and a touch determination circuit 22a, and electric wires 18a, 18b respectively covered with sheaths 34a, 34b and connecting the piezoelectric element to the detection circuit. The piezoelectric element is covered with a potting layer 38 made of a resin via a specified inner space V1. The electric wires are in a state of penetrating into the potting layer with each of one end parts thereof connected to the piezoelectric element, while penetrating segments penetrating into the potting layer are provided with non-covered segments 36a, 36b stripped of the sheaths.SELECTED DRAWING: Figure 3 【課題】振動励起素子が湿気や水滴に晒された状態になることを防ぐことができ、振動励起素子の機能性の低下を防ぐことができるタッチ検出装置を提供する。【解決手段】本発明タッチ検出装置Ａは、対象物が接触する接触部１６を含む検知部４と、この接触部を振動させる振動励起素子６と、駆動回路２４及び接触判定回路２２ａを含む検出回路１４と、振動励起素子と検出回路とを接続すると共に、被覆材３４ａ，３４ｂで被覆された電線１８ａ，１８ｂと、を有し、振動励起素子は、所定の内部空間Ｖ１を介して、樹脂によるポッティング層３８によって覆われているものであり、電線は、ポッティング層に挿入された状態で一端部が振動励起素子に接続されていると共に、ポッティング層に挿入されている挿入部分が、被覆材が剥かれた非被覆部分３６ａ，３６ｂを備えているものである。【選択図】図３