Abstract: A temperature sensor includes: 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 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 of the first spring piece and the second spring piece.

Abstract: A temperature sensor includes: a thermosensitive element including a thermosensitive body, an extension wire having one end electrically connected to the thermosensitive body, and a sealing body made of an insulation material and covering a part of the extension wire and the thermosensitive body; a lead wire electrically connected to another end of the extension wire; and a covering body made of a resin and having a long shape and a rectangular cross-section, the covering body covering a part of the lead wire and the thermosensitive element. In a lateral direction of the covering body, a dimension of a region of the covering body covering the thermosensitive element is set less than a dimension of a region of the covering body covering the lead wire.

Abstract: A temperature sensor includes a temperature measurement unit that is configured to measure a temperature of a measurement object, the temperature measurement unit having a heat-sensitive body and a pair of electric wires electrically connected to the heat-sensitive body; a holding portion that holds the temperature measurement unit and is composed of a single member; and an elastic portion that applies an elastic force to the temperature measurement unit toward the measurement object, the elastic portion being provided between the temperature measurement unit and the holding portion. The electric wires of the temperature measurement unit are pulled out from the holding portion along a first direction in which the elastic force is applied.

Abstract: A temperature sensor eliminates the necessity of removing a filler in order to check the condition of a thermosensitive body, while retaining the position of the thermosensitive body relative to a protective tube. The temperature sensor includes: a sensor element including the thermosensitive body, a protective layer made of glass and surrounding the thermosensitive body, and a lead wire electrically connected to the thermosensitive body; a protector including the protective tube in which the thermosensitive body is housed; and a retainer mechanically retaining a position of the thermosensitive body relative to the protective tube inside the protective tube.

Abstract: A temperature sensor detecting a temperature of a coil provided in a stator of a rotary electric machine includes a sensor element and a holder made of a resin. The sensor element includes a thermosensitive body, electric wires connected to the thermosensitive body, and a covering body having an elongated shape and covering the thermosensitive body, clad wires, and a part of lead wires. The holder holds one end region of the covering body on the electric wire side in a state where a longitudinal direction of the covering body is inclined relative to a temperature measurement object region of the coil. The holder is attached to the rotary electric machine in such a manner that another end region of the covering body on the thermosensitive body side is in contact with the temperature measurement object region.

Abstract: A thermistor sintered body has a thickness in a range of 1 ?m to 100 ?m and an area in a range of 1 mm2 to 10 mm2, and is composed of a single body of a sintered body having a composition of NiMn2O4. This thermistor sintered body can be manufactured by a first step of dropping a raw material liquid RL onto a surface of a substrate rotatably supported, a second step of rotating the substrate with the dropped raw material liquid RL and spreading the raw material liquid RL, a third step of forming a sintered body having the composition of NiMn2O4 on the surface of the substrate by heating and holding the raw material liquid RL and the substrate on which the raw material liquid RL has been placed, and a fourth step of separating the sintered body from the substrate.

Abstract: A temperature sensor element includes: an element main body including a heat sensitive body including a thermistor sintered body of which the electrical characteristics change with temperature, and a pair of lead wires that is connected to the heat sensitive body through electrodes; and a protective layer that protects the heat sensitive body. The protective layer has an inner protective layer covering the heat sensitive body and an outer protective layer covering the outer side of the inner protective layer. The inner protective layer is formed of an aggregate of particles that are chemically stable with respect to the thermistor sintered body and made of non-metal.

Abstract: A temperature sensor that sufficiently has heat insulation property and the pressing force to a temperature measurement object to a degree allowing a ceramic paper to be substituted, and that has a good responsiveness, and a temperature detection device and an image formation device that include the temperature sensor. The temperature sensor is disposed so as to maintain an abutting state with a temperature measurement object, the temperature sensor including: a thermosensitive element configured to detect the temperature of the temperature measurement object; a heat collection member configured to pressurize the temperature measurement object and to be thermally coupled with the thermosensitive element; and a holding member supporting the heat collection member and forming a space that faces the heat collection member.

Abstract: Provided is a thermistor sintered body which stably provides a desired B constant even if a composition deviation of an additive element has occurred. The thermistor sintered body-includes a Y2O3 phase and a YMnO3 phase, wherein a chemical composition of Cr, Mn, Ca and Y excluding oxygen includes Cr: 3 mol % or less (while including 0%), Mn: 5 to 18 mol %, Ca: 1 to 18 mol %, and Sr: 1 to 25 mol %, with the balance being unavoidable impurities and Y. In the thermistor sintered body, Ca and Sr may be dissolved in the YMnO3 phase.

Abstract: A temperature sensor detecting a temperature of a coil provided in a stator of a rotary electric machine includes: a sensor element including a thermosensitive body, electric wires electrically connected to the thermosensitive body, and an elongated covering body enclosing a part of the electric wires and the thermosensitive body, and configured to be inserted into a gap formed by the coil along a longitudinal direction of the covering body; and a bracket including a fixed portion to be fixed to the stator, and a supporting portion pressing the sensor element against the coil while elastically supporting one end of the sensor element in the longitudinal direction.

Abstract: A temperature sensor includes a protective tube made of metal, a sensor element including a thermosensitive body and a pair of conductive wires electrically connected to the thermosensitive body and accommodated in the protective tube, a first heat-resistant insulator for ensuring electrical insulation of the pair of conductive wires inside the protective tube, and a second heat-resistant insulator provided between the first heat-resistant insulator and the protective tube for ensuring electrical insulation between the conductive wires and the protective tube.

Abstract: A temperature sensor includes: a first supporting film made of an electric insulation material; a second supporting film that is made of an electric insulation material and is stacked on the first supporting film; and a sensor element provided between the first supporting film and the second supporting film. The sensor element includes a thermosensitive body having electric characteristics that change with temperature, and a first lead pattern and a second lead pattern that are electrically connected to the thermosensitive body. The first supporting film and the second supporting film are disposed to face each other in a region where the thermosensitive body is provided.

Abstract: A sensor detects presence and temperature of a measurement object. The sensor includes: a temperature sensor that detects the temperature of the measurement object; a sensor holder that holds the temperature sensor in a movable manner; and a detector that detects the presence of the measurement object in response to a movement of the temperature sensor. The detector includes a shield that moves in response to the movement of the temperature sensor, the sensor holder includes a pipe that holds the shield and controls a movement of the shield such that the shield moves in a predetermined direction in response to the movement of the temperature sensor, and the shield and the pipe are different in hardness.

Abstract: A temperature sensor includes: a sensor element including a heat-sensitive body configured to contact with a detection object, a pair of lead wires connected with the heat-sensitive body, and connecting wires connected with the lead wires respectively; and a holding element including a fixed body configured such that a position of the fixed body is fixed to an object appliance, and a movable body configured to support the heat-sensitive body of the sensor element and to reciprocate between a first position and a second position relative to the fixed body. Each of the lead wires includes a first core wire formed of a solid wire. Each of the connecting wires includes a second core wire formed of a twisted wire and a second insulating covering that covers the second core wire. A conducting wire constituting the twisted wire has a smaller wire diameter than the solid wire.

Abstract: A temperature detection device that can facilitate attachment of a temperature sensor to a coil and can improve thermal responsiveness by a simple structure reduced in the number of components. Such a temperature detection device includes a temperature sensor including a thermosensitive body configured to detect temperature of a coil of a rotary electric machine to be mounted on a vehicle, and a metal bracket attaching the temperature sensor to the coil. The bracket includes a bracket main body clamping the coil by elastic force, and a joining portion joined to the temperature sensor. The bracket main body includes a clamping portion internally clamping the coil, and a heat collection portion that protrudes to outside of the clamping portion and is thermally coupled to the temperature sensor.

Abstract: There are provided a temperature sensor that has following capability to a temperature measurement object and has excellent responsiveness, and a temperature detection device and an image forming apparatus each including the temperature sensor. A temperature sensor used in contact with a temperature measurement object, includes: a thermosensitive element configured to detect a temperature of the temperature measurement object; a heat collection member including an abutting portion configured to abut on the temperature measurement object, and configured to be thermally joined with the thermosensitive element; and a holding member including a housing portion configured to house the heat collection member. The heat collection member is swingably held by the holding member, to maintain a state where the abutting portion abuts on the temperature measurement object.

Abstract: A temperature sensor comprises: a sensor element including a thermosensitive body and a pair of electric wires that are electrically connected to the thermosensitive body; a protective tube for accommodating the sensor element; and a filling body that lies between the protective tube and the sensor element inside the protective tube. The pair of electric wires includes a pair of first electric wires and that are connected to the thermosensitive body, and a pair of second electric wires and that are connected to the pair of first electric wires and, respectively. The pair of second electric wires and are connected to the pair of first electric wires and on its front side at which insulation coverings thereof are separated from each other.

Abstract: An infrared temperature sensor that detects temperature of a detection object in a non-contact manner includes a sensor case that includes a light guiding region and a light shielded region, a film that absorbs and converts infrared rays into heat, a sensor cover, an infrared detection element, and a temperature compensation element. The sensor case includes a case base portion and a hood that surrounds the light guiding region and the light shielded region and is erected from the case base portion. The hood includes an opening part and a shielding part that protrudes toward an inside of the hood while defining the opening part and the light guiding region, and shields the light shielded region from the infrared rays. A protrusion direction of the shielding part toward the inside of the hood is adjustable.

Abstract: A temperature sensor includes a sensor element including a thermosensitive body, a protection tube accommodating the thermosensitive body part of the sensor element, and a filler filling a space between the protection tube and the sensor element inside the protection tube. The sensor element includes a first covering layer made of a first electrical insulator, the first covering layer covering the thermosensitive body, and a second covering layer made of a second electrical insulator, the second covering layer covering the first covering layer. The first covering layer has elastic modulus smaller than elastic modulus of the second covering layer.