JP2009041944A5 - - Google Patents

Claims (4)

A temperature sensing element having a temperature sensing part whose electrical characteristics change with temperature, and an electrode wire connected to the temperature sensing part;
A sheath member having a metal core wire connected to the electrode wire at the tip end, and a protective tube for insulatingly holding the metal core wire in a state in which the tip end portion of the metal core wire protrudes;
A holding member that holds the protective tube directly or indirectly through another member in a state where the tip of the protective tube is inserted inside itself;
A cylindrical surrounding member fixed to the holding member and surrounding at least a rear end portion of the protective tube;
A fixing member interposed between the protective tube and the surrounding member, and mechanically fixing the protective tube and the surrounding member to each other;
A temperature sensor comprising:
The surrounding member is
A fixing member holding part that protrudes toward the inside and holds the outer periphery of the fixing member disposed inside thereof;
A temperature sensor comprising: a fixing member movement restricting portion that protrudes inward on the front end side or the rear end side from the fixing member and restricts the movement of the fixing member inside the surrounding member.   The temperature sensor according to claim 1, wherein the fixing member movement restricting portion is provided on both the front end side and the rear end side of the fixing member.   The temperature sensor according to claim 1, wherein the fixing member movement restricting portion protrudes from the fixing member holding portion. The temperature sensor according to any one of claims 1 to 3, wherein a thermal expansion coefficient of the fixing member is different from thermal expansion coefficients of the surrounding member and the protective tube.