PRESSURE SENSITIVE SENSOR

• Main Authors: FUJIMAKI MASAFUMI, NAITO SHUNJI
• Format: Patent
• Language: English; Japanese
• Published: 07.05.2024
• Subjects: MEASURING; MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER,MECHANICAL EFFICIENCY, OR FLUID PRESSURE; PHYSICS; TESTING

To provide a pressure sensitive sensor that can achieve a reduction in the number of parts and a reduction in thickness, and reduces the likelihood of the occurrence of displacement between components resulting from assembly.SOLUTION: A substrate 10 is formed thereon with wiring patterns 21, 31, wiring-side contact patterns 41, 51 connected to the wiring patterns 21, 31, respectively, and an independent first contact pattern 61 not connected to either one of the wiring-side contact patterns 41, 51. A pressure-sensitive resistor 71 in which the value of resistance changes according to pressure is formed on the wiring-side contact patterns 41, 51 and the first contact pattern 61. A second contact pattern 81A is formed at a position connecting a portion C1 opposite to the wiring-side contact pattern 41 and a portion C2 opposite to the first contact pattern 61 on the pressure-sensitive resistor 71, and a second contact pattern 81B is formed at a position connecting a portion C3 opposite to the wiring-side contact pattern 51 and a portion C4 opposite to the first contact pattern 61 on the pressure-sensitive resistor.SELECTED DRAWING: Figure 1 【課題】部品点数の削減と厚みの薄型化が図れ、各構成要素間に組み立てによるずれが生じにくい感圧センサを提供すること。【解決手段】基板１０上に、配線パターン２１，３１と、各配線パターン２１，３１にそれぞれ接続される配線側接点パターン４１，５１と、何れの配線側接点パターン４１，５１にも接続しない独立した第１接点パターン６１とを形成する。配線側接点パターン４１，５１と第１接点パターン６１上に、圧力に応じて抵抗値が変化する感圧抵抗体７１を形成する。感圧抵抗体７１上の、配線側接点パターン４１に対向する部分Ｃ１と第１接点パターン６１に対向する部分Ｃ２との間を連結する位置と、配線側接点パターン５１に対向する部分Ｃ３と第１接点パターン６１に対向する部分Ｃ４との間を連結する位置に、第２接点パターン８１Ａ，８１Ｂを形成する。【選択図】図１