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.

Abstract: A thermistor sintered body and a temperature sensor element that can adjust a resistance value in a wider range while suppressing an influence on a B constant. A thermistor sintered body of the present invention includes: a Y2O3 phase as a main phase; and a Y(Cr/Mn)O3 phase as a subphase, wherein a chemical composition of Cr, Mn, Ca, Pr and Y excluding oxygen includes one or two of Cr: 20 mol % or less and Mn: 20 mol % or less, Ca: 1 to 15 mol %, and Pr: 0.5 to 30 mol %, with the balance being unavoidable impurities and Y. In the present invention, preferably, the subphase is a Y(Cr,Mn)O3 phase or a YCrO3 phase, and Pr is dissolved in the Y(Cr,Mn)O3 phase or the YCrO3 phase.

Abstract: A temperature detection device according to the present invention can improve assembling workability to a coil. A temperature detection device 1 includes a temperature sensor 10 that includes a thermosensitive element 111 detecting temperature of a coil 8, a holder 20 that holds the temperature sensor 10 and positions the coil 8 with respect to the temperature sensor 10, and a clip 30 as an elastic body configured to sandwich the temperature sensor 10 and the coil 8 that are positioned by the holder 20. The clip 30 is movable to an attachment position where the clip 30 is attached to the holder 20 to sandwich the temperature sensor 10 and the coil 8, and a separated position where the clip 30 is separated from the temperature sensor 10 when the coil 8 is positioned with respect to the temperature sensor 10 by the holder 20.

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-sensitive element including an element main body and a pair of lead wires that is drawn out from the element main body; a case accommodating the temperature-sensitive element and having a heat transfer surface configured to come into contact with a measurement object for temperature; a pair of lead frames electrically connected with each of the lead wires and drawn out from the case; and a filler covering the temperature-sensitive element accommodated in the case and the lead frames and holding the temperature-sensitive element and the lead frames in the case while maintaining a state of the connection.

Abstract: Provided is a temperature sensor allowing a wire, which is an additional element, to be efficiently connected to the temperature sensor. The temperature includes the additional element and a temperature detecting element. The temperature detecting element includes a heat-sensitive body, a sensor element, and a protective tube. The sensor element has a pair of first electric wires which are electrically connected to the heat-sensitive body. The protective tube accommodates the sensor element. The additional element includes a terminal and a second electric wire that is electrically connected to the terminal. The terminal is responsible for electrical connection between the additional element and the protective tube, and for assembly where the additional element is mated with the protective tube. The terminal in the present invention has a passage which allows the first electric wires to pass therethrough.

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 includes a thermistor element that includes a thermosensitive body configured to sense heat of a coil element and an electric wire electrically connected to the thermosensitive body, and a holder assembling the thermistor element to the coil element. The holder includes a thermosensitive body holder that holds a reinforcing portion of the thermosensitive body disposed sideways along a front surface of the coil element and is provided with a first resin reservoir enclosing a thermosensitive body contact portion of the thermosensitive body, and an electric wire holder holding the electric wire. The thermosensitive body contact portion is in contact with the coil element while being enclosed with the first resin reservoir. According to the temperature detection device, it is possible to more accurately detect temperature of a coil with high responsiveness while promoting miniaturization of the temperature detection device.

Abstract: A temperature sensor of the present invention includes a sensor element (11) that includes a main body (13) and paired lead wires (15 and 15) drawn from the main body (13), and a first housing (19) that includes a resin mold layer and covers the sensor element (11). The main body (13) is partially or entirely exposed, continuously in a circumferential direction, from the first housing (19) without being covered with the first housing. In the temperature sensor, the main body (13) includes a thermosensitive body (13A) and a sealing glass (13B) covering the thermosensitive body (13A), and the sealing glass (13B) is exposed from the first housing (19).

Abstract: A temperature sensor 10 according to the present invention includes a coil element (10) connected to a coil of an electric apparatus, an element main body (51) that includes a thermosensitive body (52) detecting heat of the coil element (10) and paired electric wires (55 and 56) connected to the thermosensitive body (52), and a housing (25) that includes an electric insulating resin material and is configured to house the coil element (10) and the element main body (51). The housing (25) according to the present invention includes, at a position corresponding to the thermosensitive body (52), a view window (76) allowing for visual confirmation of the thermosensitive body (52) from outside.

Abstract: In a dryer, humidity of supply air in a supply path of a heat pump dryer unit is directly detected by a first humidity detection sensor, and humidity of exhaust air in a discharge path is directly detected by a second humidity detection sensor. The first and second humidity detection sensors are collectively installed at one place, and a first conduit or a second conduit that guides the supply air or the exhaust air to a position of the corresponding sensor is provided. The sensors may be collectively disposed at one place in the supply path or the discharge path. This facilitates mounting of the sensor and saves a mounting space. Because environment temperatures of the two humidity sensors can be regarded as equal to each other when using relative humidity sensors, temperature detection for conversion into absolute humidity can be performed at one place.

Abstract: An infrared temperature sensor includes a sensor case, a heat conversion film configured to absorb infrared rays and to convert the infrared rays into heat, a sensor cover that is disposed to face the sensor case through the heat conversion film, and an infrared detection element and a temperature compensation element that are disposed on the heat conversion film. The sensor case includes a case base portion that includes a front surface and a rear surface, a light guiding region that is provided to penetrate through the front surface and the rear surface of the case base portion, and a light shielded region that is provided inside a light shielding dome erected from the front surface side of the case base portion.

Abstract: A temperature sensor 1 according to the present invention includes a first coil element 11 and a second coil element 12 both serving as a part of a coil of an electric apparatus, an element main body 53 that includes a thermosensitive body 54 detecting temperature of the first coil element 11 and temperature of the second coil element 12 and a pair of extraction wires 56 and 56 connected to the thermosensitive body 54, and a housing 25 that includes an electric insulating resin material and is configured to house and hold the first coil element 11, the second coil element 12, and the element main body 53.

Abstract: A thermistor sintered body that can control a B constant at 1000° C. to the same level as that of a conventional wide range type. The thermistor sintered body according to the present invention has a composite structure that includes a Y2O3 phase and a Y(Cr, Mn)O3 phase or a YMnO3 phase. In the thermistor sintered body according to one aspect of the present invention, a chemical composition of Cr, Mn, Ca and Y excluding oxygen is Cr: 3 to 9 mol %, Mn: 5 to 15 mol %, Ca: 1 to 8 mol % (where Cr/Mn<1.0), and the balance being unavoidable impurities and Y. In the thermistor sintered body, the B constant (B(0/1000)) determined by the following Expression (1) is 2400 K or lower; B=(lnRm?lnRn)/(1/Tm?1/Tn) . . . (1). Rm: resistance value at 0° C., Rn: resistance value at 1000° C., Tm: 0° C., and Tn: 1000° C.