Pressure sensor device with temperature detecting element and attachment method thereof

A sensor device comprising:

• a pressure detecting element for detecting a pressure;
• a terminal that is electrically connected to the pressure detecting element;
• a case in which the pressure detecting element is received and the terminal is insert-molded;
• a port portion connected to the case, the port portion defining a pressure introduction passage through which a pressure medium is introduced to the pressure detecting element;
• a temperature detecting element disposed in the pressure introduction passage to detect a temperature of the pressure medium;
• and
• a lead wire through which the temperature detecting element is electrically connected to the terminal, wherein:
• the port portion has an opening portion opened at a tip end of the port portion, from which the pressure medium is introduced to the pressure introduction passage;
• a part of the lead wire is insert-molded in a wall portion of the port portion;
• and
• the temperature detecting element is disposed such that the pressure medium introduced from the opening portion passes the temperature detecting element and is conducted to the pressure detecting element through the pressure introduction passage.

A method for attaching a sensor device to a wall member of a subject device, the sensor device including a pressure detecting element for detecting a pressure of a pressure medium introduced from an interior of the wall member of the subject device through a pressure introduction passage of a port portion, and a temperature detecting element disposed in the pressure introduction passage of the port portion of the sensor device to detect a temperature of the pressure medium introduced from an opening portion of the port portion, the method comprising

• preparing an attachment elastic member that is formed to have a hollow shape and includes a first end flange portion having an end protrusion protruding radially inward at one axial end of the attachment elastic member, a second flange portion provided at the other axial end of the attachment elastic member, and an inner protrusion portion provided between the first end flange portion and the second end flange portion to protrude radially inside;
• temporarily attaching the attachment elastic member to the sensor device, wherein the temporarily attaching includes inserting a tip portion of the port portion from the second end flange portion of the attachment elastic member into the attachment elastic member such that a tip end surface of the port portion contacts the end protrusion and the inner protrusion portion is received in a recess portion of the port portion;
• moving the tip end portion of the port portion to an upper portion of an attachment hole of the wall member in a state where the attachment elastic member is temporarily assembled to the port portion;
• and
• pushing the sensor device toward the attachment hole of the wall member so that the port portion is inserted into the attachment hole until the end protrusion of the first flange portion is received in the recess portion of the port portion,
• wherein the port portion is fixed to the attachment hole through the attachment elastic member after the pushing.