Patent ID: 6843132

Claim:
A pressure sensor, comprising; a housing, a diaphragm partitioning an interior and an exterior of the housing, a sensor element provided within the housing, output values of the sensor element varying in accordance with a force exerted thereupon, a force transmitting member provided within the housing, the transmitting member moving in a direction in a case where a pressure is exerted upon the diaphragm, the force transmitting member thereby exerting a force upon the sensor element, wherein, the diaphragm has a first region contacting with the force transmitting member, and a second region connecting the first region with the housing, and wherein the second region of the diaphragm has folded portions comprising a first folded portion extending from the first region towards the housing and being inclined in a direction in which the force transmitting member moves when the pressure is exerted upon the diaphragm, a second folded portion extending from the first region towards the housing and being inclined in a direction opposite the moving direction of the force transmitting member, and connecting portion between the first folded portion and the second folded portion.