Importance

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Abstract

A sensor switch includes a ceramic body including an intermediate layer assembly having an inner peripheral surface with a through hole, a first side layer assembly having a first groove, and a second side layer assembly having a second groove. A first conductive layer is disposed in the first groove, and has a first contact surface. A second conductive layer is disposed in the second groove, and has a second contact surface. The inner peripheral surface and the first and second contact surfaces cooperatively define a sensing cavity. A conductive member is rollably disposed in the sensing cavity and is movable between closed and open circuit positions to achieve a sensing effect.

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First Claim