Temperature sensor

A temperature measurement structure, comprising:

• a measurement object;
• a supporter facing the measurement object;
• and
• a temperature sensor mounted between the measurement object and the supporter, wherein
• the temperature sensor includes a sensor element including a thermosensitive body configured to detect a temperature of the measurement object and a protector that internally houses the thermosensitive body, and an elastic bracket that holds the protector and is configured to apply an elastic force to the protector toward the measurement object,
• the elastic bracket includes a first spring piece holding the protector, a second spring piece facing the first spring piece, and a connection piece connecting a connected side of the first spring piece to a connected side of the second spring piece,
• the first spring piece includes a second surface facing the second spring piece, and a first surface on a back side of the second surface,
• the protector is held in contact with the first or second surface,
• the protector is held by a holding piece integrally provided on the first spring piece,
• the protector includes a held portion held by the holding piece, and a thermosensitive portion sealing the thermosensitive body,
• the held portion is thinner in thickness than the thermosensitive portion, and
• in a non-load state of the elastic bracket, the first spring piece and the second spring piece are inclined to and face each other through a predetermined inclination angle, and a distance between the first spring piece and the second spring piece is larger at respective free end sides of the first spring piece and the second spring piece than at the respective connected sides.

A temperature sensor, comprising:

• a sensor element including a thermosensitive body configured to detect a temperature of a measurement object, and a protector that internally houses the thermosensitive body;
• and
• an elastic bracket that holds the protector and is configured to apply an elastic force to the protector toward the measurement object, wherein
• the elastic bracket includes a first spring piece holding the protector, a second spring piece facing the first spring piece, and a connection piece connecting a connected side of the first spring piece to a connected side of the second spring piece,
• in a non-load state of the elastic bracket, the first spring piece and the second spring piece are inclined to and face each other through a predetermined inclination angle, and a distance between the first spring piece and the second spring piece is larger at respective free end sides of the first spring piece and the second spring piece than at the respective connected sides,
• the protector includes a held portion held by the holding piece, and a thermosensitive portion sealing the thermosensitive body,
• the held portion is thinner in thickness than the thermosensitive portion,
• the first spring piece includes a second surface facing the second spring piece, and a first surface on a back side of the second surface,
• the protector is held in contact with the second surface, and
• the protector is held by a holding piece integrally provided on the first spring piece.

A temperature sensor comprising:

• a sensor element including a thermosensitive body configured to detect a temperature of a measurement object, and a protector that internally houses the thermosensitive body;
• and
• an elastic bracket that holds the protector and is configured to apply an elastic force to the protector toward the measurement object, wherein
• the elastic bracket includes a first spring piece holding the protector, a second spring piece facing the first spring piece, and a connection piece connecting a connected side of the first spring piece to a connected side of the second spring piece,
• in a non-load state of the elastic bracket, the first spring piece and the second spring piece are inclined to and face each other through a predetermined inclination angle, and a distance between the first spring piece and the second spring piece is larger at respective free end sides of the first spring piece and the second spring piece than at the respective connected sides,
• the protector includes a held portion held by a holding piece provided on the first spring piece, and a thermosensitive portion sealing the thermosensitive body, and
• the thermosensitive portion includes a flat thermosensitive surface to come into surface contact with the measurement object, and a supported surface opposed to the thermosensitive surface in parallel and supported by a flat surface of the first spring piece.