JP2013137233A - Temperature sensor device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a temperature sensor device which can be surely installed even if a sensor fitting hole has a positional deviation somewhat or a space between the hole and a measuring object changes.SOLUTION: A temperature sensor device 1 for measuring an internal temperature of battery through a sensor fitting hole 3a provided in a battery 2 includes: a heat sensitive element 4; a pair of wiring terminals 5 of which one end is connected to the heat sensitive element; a pair of lead wires 6 to which the other end of the pair of wiring terminals is connected; a case part 8 for supporting a tip side of the lead wires by storing at least the tip side of the lead wires; and a measuring protrusion 7 which arranges the heat sensitive element within a tip and also is arranged around the wiring terminals coming out from the case part, and protrudes from the case part and can insert into the sensor fitting hole 3a. The measuring protrusion can be expanded and contracted in an axial direction, and also is bendable and deformable.

Description

  The present invention relates to a temperature sensor device suitable for detecting a battery temperature of a hybrid vehicle or an electric vehicle.

  In recent years, a hybrid vehicle having an excellent fuel efficiency performance by combining an internal combustion engine and a motor and an electric vehicle driven only by the motor have been developed and put into practical use. In these hybrid vehicles and electric vehicles, a battery is mounted for driving the motor. In order to maintain the performance of the battery well, the temperature of the battery is detected and temperature management is performed (Patent Literature). 1).

  Conventionally, as a temperature sensor for detecting the temperature of the battery, for example, in Patent Document 2, a sensor main body having a resin-made housing portion disposed so as to be in contact with or close to a subject such as a battery cell, and the housing A thermistor (temperature measuring element) that is disposed inside the unit and outputs a detection signal corresponding to the temperature of heat transferred from the subject to the inside of the housing, and is located between the subject and the thermistor Describes a temperature sensor provided with a metal heat transfer improving member provided in the housing portion for increasing the efficiency of heat transfer to the thermistor.

JP 2007-112268 A JP 2009-250768 A

The following problems remain in the conventional technology.
When measuring the internal temperature of the battery through a sensor mounting hole provided in the battery or the like, it is necessary to perform measurement by inserting a thermal element such as a thermistor into the sensor mounting hole. However, if the thermistor alone is directly inserted into the sensor mounting hole, it is difficult to securely fix the thermistor. For this reason, like the temperature sensor of the said patent document 2, it is necessary to attach to a sensor attachment hole using a housing part. However, if the sensor mounting hole and the measurement hole provided in the measurement object such as the internal battery have been installed with a slight misalignment, or if the position and spacing of each other changes due to vibration and fluctuation, Further, there may be a case where the sensor mounting hole is inclined. At this time, in the temperature sensor described in Patent Document 2, even if the thermistor portion covered with the metal heat transfer improving member is inserted into the sensor mounting hole, the distance from the measurement hole in the back becomes narrower. Due to misalignment and misalignment, the insertion part is too long to be mounted, and cannot be inserted into the measurement hole, or tilted obliquely and cannot be fixed.

  The present invention has been made in view of the above-described problems, and provides a temperature sensor device that can be reliably installed even if the sensor mounting hole is slightly displaced or the distance from the measurement object changes. Objective.

  The present invention employs the following configuration in order to solve the above problems. That is, a temperature sensor device according to a first aspect of the present invention is a temperature sensor device that measures the internal temperature of the measurement object through a sensor mounting hole provided in the measurement object, and includes a thermal element and one end of the thermal element. A pair of wiring terminals connected to each other, a pair of lead wires to which the other ends of the pair of wiring terminals are connected, and a case portion that houses at least the leading end side of the lead wire and supports the leading end side of the lead wire And a measurement protrusion that is arranged around the wiring terminal or the lead wire protruding from the case portion and protrudes from the case portion and can be inserted into the sensor mounting hole. And the measurement protrusion is extendable and contractible in the axial direction and can be bent and deformed.

  In this temperature sensor device, the measurement protrusion that places the thermosensitive element at the tip can be expanded and contracted in the axial direction and can be bent. For example, when the sensor mounting hole and the measurement hole are misaligned, Even when the mounting hole is formed obliquely, the measurement protrusion is bent and deformed, and the tip can be firmly inserted into the measurement hole. In addition, the distance between the sensor mounting hole and the measurement hole is slightly shortened due to vibration, etc., and even if the tip of the measurement protrusion is pushed against the hole bottom, the measurement protrusion expands and contracts to maintain a stable mounting state. be able to. Therefore, the temperature sensor device can be easily and surely attached even if it is not a sensor mounting hole provided with high accuracy, the assembling cost can be reduced, and the temperature of the measuring object such as a battery can be accurately measured. Become. Moreover, since the thermosensitive element is accommodated in the front-end | tip part of a measurement protrusion part, high waterproofness and vibration resistance are obtained, and it has high reliability.

The temperature sensor device according to a second invention is characterized in that, in the first invention, the measurement protrusion has a resin spring portion that covers the wiring terminal and is formed in a spiral shape together with the wiring terminal. And
That is, in this temperature sensor device, the measurement protrusion has a resin spring portion that covers the wiring terminal and is formed in a spiral with the wiring terminal, so that the resin spring portion can be expanded and contracted and deformed together with the wiring terminal. In addition, the wiring terminals can be covered and protected. Further, the resin spring portion can be insert-molded together with the wiring terminal, so that the assembling cost can be reduced and high insulation and waterproofness can be obtained.

The temperature sensor device according to a third aspect of the present invention is the temperature sensor device according to the first aspect, wherein the measurement projecting portion is provided at a coil spring portion whose base end is fixed to the case portion, and at the tip of the coil spring portion, and the thermal element is accommodated And at least a portion from the heat sensitive element to the tip of the lead wire is inserted into the coil spring portion in a state of being covered with an element protecting resin.
That is, in this temperature sensor device, at least from the heat sensitive element to the tip of the lead wire is inserted into the coil spring part in a state of being covered with the element protecting resin, the coil spring part can be expanded and contracted and the element can be deformed. The wiring terminals and the like can be protected by winding around the wiring terminals covered with the protective resin.

A temperature sensor device according to a fourth invention is characterized in that, in the third invention, the coil spring portion is a metal coil spring.
That is, in this temperature sensor device, since the coil spring portion is a metal coil spring, a measurement protrusion having excellent durability and high spring property can be obtained.

A temperature sensor device according to a fifth invention is characterized in that, in the third invention, the coil spring portion and the case portion are integrally molded with resin.
That is, in this temperature sensor device, since the coil spring portion and the case portion are integrally molded with resin, the coil spring portion and the case portion can be integrally manufactured by one molding, and high mass productivity is obtained.

A temperature sensor device according to a sixth aspect of the present invention is the temperature sensor device according to any one of the first to fifth aspects, wherein the measurement protrusion is inserted into the sensor mounting hole on the outer periphery of the base end portion. The part is provided with a fitting groove part into which the part can be fitted.
That is, in this temperature sensor device, the measurement protrusion has a fitting groove portion into which the inner edge portion of the sensor attachment hole can be fitted in the state where the measurement attachment portion is inserted into the sensor attachment hole on the outer periphery of the base end portion. By inserting and pushing the measurement protrusion, the inner edge of the sensor mounting hole fits into the fitting groove at the base end, and the small sensor mounting hole fits like a snap, making it easy to install Is possible.

The temperature sensor device according to a seventh aspect of the present invention is the temperature sensor device according to any one of the first to fifth aspects, wherein the case portion can be fitted into the sensor mounting hole in a state where the measurement protrusion is inserted into the sensor mounting hole. A fixing projection is provided.
That is, in this temperature sensor device, since the case portion includes a fixing protrusion that can be fitted into the sensor mounting hole in a state where the measurement protruding portion is inserted into the sensor mounting hole, the fixing is provided separately from the measurement protruding portion. It becomes possible to fix to a sensor attachment hole reliably and stably by the projection part for use.

The temperature sensor device according to an eighth invention is characterized in that, in any one of the first to seventh inventions, the measurement object is a battery.
That is, in this temperature sensor device, since the measurement target is a battery, it can be easily and reliably mounted in the sensor mounting hole of the battery, and the temperature of the battery can be measured with high accuracy.

The present invention has the following effects.
That is, according to the temperature sensor device according to the present invention, the measurement protrusion that arranges the thermosensitive element at the tip can be expanded and contracted in the axial direction and can be bent and deformed. Even if not, the temperature sensor device can be easily and reliably attached, the installation cost can be reduced, and the temperature of the measurement object such as a battery can be accurately measured. Moreover, high waterproofness and vibration resistance can be obtained, and excellent reliability can be obtained.
Therefore, the temperature sensor device of the present invention can be easily and reliably mounted in a sensor mounting hole such as a battery and can measure the temperature of the battery with high accuracy. In particular, it is suitable as a sensor for measuring the temperature of a battery of a hybrid vehicle or an electric vehicle.

In 1st Embodiment of the temperature sensor apparatus which concerns on this invention, it is the front view which fractured | ruptured the battery side which shows the temperature sensor apparatus of the state attached to the sensor attachment hole of the battery. In 1st Embodiment, it is a perspective view which shows a temperature sensor apparatus. In 1st Embodiment, it is a right view and AA sectional view taken on the line which show a temperature sensor apparatus. In 1st Embodiment, it is a bottom view which shows a temperature sensor apparatus. In 1st Embodiment, it is a top view which shows a temperature sensor apparatus. In 1st Embodiment, it is the front view which fractured | ruptured the battery side which shows the temperature sensor apparatus installed in the hole for attachment in which the space | interval with the hole for measurement became short. In 1st Embodiment, it is sectional drawing which fractured | ruptured the battery side which shows the temperature sensor apparatus installed in the mounting hole shifted. It is the right view and BB sectional drawing which show 2nd Embodiment of the temperature sensor apparatus which concerns on this invention. In 2nd Embodiment, it is a perspective view which shows a temperature sensor apparatus. In 2nd Embodiment, it is a front view which shows a temperature sensor apparatus. In 2nd Embodiment, it is a bottom view which shows a temperature sensor apparatus. It is the right view and BB sectional drawing which show 3rd Embodiment of the temperature sensor apparatus which concerns on this invention. In 3rd Embodiment, it is a perspective view which shows a temperature sensor apparatus. In 3rd Embodiment, it is a front view which shows a temperature sensor apparatus. In 3rd Embodiment, it is a bottom view which shows a temperature sensor apparatus.

  Hereinafter, a first embodiment of a temperature sensor device according to the present invention will be described with reference to FIGS.

  As shown in FIG. 1, the temperature sensor device 1 according to the first embodiment includes a battery 2 via a sensor mounting hole 3 a provided in a case 3 of a battery (measurement target) 2 mounted on a hybrid vehicle or an electric vehicle. It is a temperature sensor device that measures the internal temperature. The battery 2 includes a battery main body 12 housed in a case 3, a sensor mounting hole 3 a for mounting a temperature sensor device is formed in the case 3, and the battery main body 12 has a sensor mounting hole 3 a in the sensor mounting hole 3 a. A measurement hole 12a is formed at the opposed position.

  As shown in FIGS. 1 to 5, the temperature sensor device 1 includes a thermal element 4, a pair of wiring terminals 5 having one end connected to the thermal element 4, and the other ends of the pair of wiring terminals. A pair of lead wires 6, a case portion 8 that accommodates at least the tip end side of the lead wire 6 and supports the tip end side of the lead wire 6, and the thermal element 4 is disposed in the tip end portion 7 a and extends from the case portion 8 The measuring projection 7 is provided around the wiring terminal 5 and protrudes from the case portion 8 and can be inserted into the sensor mounting hole 3a.

  The thermosensitive element 4 is a thermistor element, and the thermistor element is a chip thermistor or a flake type thermistor having a thermistor body and a pair of electrodes formed on the thermistor body. As the thermistor, there are thermistors of the NTC type, the PTC type, the CTR type and the like. In this embodiment, for example, an NTC type thermistor is employed as the thermistor element.

One end of the pair of wiring terminals 5 is connected to a pair of electrodes formed on the thermistor body of the thermal element 4.
The lead wire 6 is composed of a metal core wire 6a connected to the other end of the wiring terminal 5 via a connection terminal 6c, and an insulating covering material 6b covering the metal core wire 6a.

The measurement protrusion 7 can be expanded and contracted in the axial direction and can be bent and deformed. The measurement protrusion 7 has a tip 7 a that seals the thermal element 4, and a resin spring portion 7 b that covers the wiring terminal 5 and is spirally formed together with the wiring terminal 5.
Moreover, the measurement protrusion part 7 is provided with the fitting groove part 7c which can fit the inner edge part of the sensor attachment hole 3a in the state inserted in the sensor attachment hole 3a on the outer periphery of the base end part. The fitting groove 7c is set to have an outer diameter slightly smaller than the inner diameter of the sensor mounting hole 3a.

  In addition, the proximal end portion of the measurement protrusion 7 has a tapered engagement in which the outer diameter on the proximal end side is set slightly larger than the inner diameter of the sensor mounting hole 3a and the outer diameter is gradually reduced toward the distal end. The part 7d is formed on the tip side of the fitting groove part 7c. That is, the measurement protrusion 7 is inserted into the sensor attachment hole 3a, and the tapered engagement portion 7d formed of resin is pushed into the sensor attachment hole 3a to be elastically deformed, whereby the inner edge of the sensor attachment hole 3a is tapered. It fits into the fitting groove 7c over the shape locking portion 7d.

The case portion 8 is a thin, substantially rectangular parallelepiped shape as a whole, and is a box-shaped resin molded body that seals and stores a connection portion between the lead wire 6 and the wiring terminal 5.
The case portion 8 and the measurement projection portion 7 are integrally molded with resin, and are formed by insert molding from the leading end portion of the lead wire 6 to the thermal element 4.

  When the temperature sensor device 1 is attached to the battery 2, as shown in FIG. 1, the measurement protrusion 7 is inserted into the sensor attachment hole 3a, and the measurement of the battery body 12 with the tip of the measurement protrusion 7 further in the back is performed. Insert it into the hole 12a. At this time, the base 8 of the measurement protrusion 7 is pushed into the sensor mounting hole 3a and the inner edge of the sensor mounting hole 3a is fitted into the fitting groove 7c, thereby fixing the case 8 to the case 3 and fixing the temperature sensor device 1 to the case 3. Is fixed to the battery 2.

  As described above, in the temperature sensor device 1 according to the present embodiment, the measurement protrusion 7 in which the thermal element 4 is arranged at the tip 7a can be expanded and contracted in the axial direction and can be bent and deformed, for example, as shown in FIG. Furthermore, even if the distance between the sensor mounting hole 3a and the measurement hole 12a is slightly shortened due to vibration or the like, even if the tip of the measurement protrusion 7 is pushed against the hole bottom, the resin spring portion 7b of the measurement protrusion 7 is contracted, A stable mounting state can be maintained.

  In addition, as shown in FIG. 7, even when the sensor mounting hole 3a and the measurement hole 12a are misaligned, the resin spring portion 7b of the measurement protrusion 7 is bent and deformed, and the tip is firmly in the measurement hole 12a. Can be inserted. Therefore, the temperature sensor device 1 can be easily and surely attached even if it is not the sensor attachment hole 3a provided with high accuracy, the assembling cost can be reduced, and the temperature of the measurement object such as a battery can be accurately measured. It becomes possible. Moreover, since the thermal element 4 is accommodated in the front-end | tip part 7a of the measurement protrusion part 7, high waterproofness and vibration resistance are obtained, and it has the outstanding reliability.

  In particular, since the measurement protrusion 7 has a resin spring portion 7 b that covers the wiring terminal 5 and is formed in a spiral with the wiring terminal 5, the resin spring portion 7 b can be expanded and contracted and deformed together with the wiring terminal 5. In addition, the wiring terminal 5 can be covered and protected. In addition, the resin spring portion 7b can be insert-molded together with the wiring terminal 5, so that the assembling cost can be reduced and high insulation and waterproofness can be obtained.

  Moreover, since the measurement protrusion part 7 is provided with the fitting groove part 7c in which the inner edge part of the sensor attachment hole 3a can be fitted in the state inserted in the sensor attachment hole 3a on the outer periphery of the base end part, the measurement is performed in the sensor attachment hole 3a. By inserting and pushing in the protrusion 7, the inner edge of the sensor mounting hole 3a is fitted into the fitting groove 7c at the base end, and the small diameter sensor mounting hole 3a is fitted like a snap for easy one-touch operation. It becomes possible to attach to.

  Therefore, the temperature sensor device 1 of the present embodiment can be easily and reliably mounted in the sensor mounting hole 3a of the battery 2 and can measure the temperature of the battery 2 with high accuracy. Particularly, it is suitable as a sensor for measuring the temperature of a battery of a hybrid vehicle or an electric vehicle.

  Next, second and third embodiments of the temperature sensor device according to the present invention will be described below with reference to FIGS. In the following description of each embodiment, the same constituent elements described in the above embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  The difference between the second embodiment and the first embodiment is that, in the first embodiment, the measurement protruding portion 7 and the case portion 8 incorporate the thermal element 4 and the wiring terminal 5 and are integrally formed by insert molding. In contrast to the spiral resin spring portion 7b, in the temperature sensor device 21 of the second embodiment, the measurement protrusion 27 is formed separately from the case portion 28 as shown in FIGS. It is a point that has been.

That is, in the second embodiment, the measurement projecting portion 27 includes a coil spring portion 27b whose base end is fixed to the case portion 28, and a resin distal end portion 27a provided at the distal end of the coil spring portion 27b and housing the thermal element 4 therein. It has. Further, at least from the heat-sensitive element 4 to the tip end portion of the lead wire 26 is covered with the element protection resin 24 to be a resin mold thermistor, and is inserted through the coil spring portion 27b.
The coil spring portion 27b is a metal coil spring.

The pair of lead wires 26 of the second embodiment are two-wire parallel lead wires in which metal core wires 26a are arranged in parallel and covered with a common coating material 26b.
The case portion 28 has a thin, substantially rectangular parallelepiped shape as a whole, and includes a box-shaped case main body 29a and a lid portion 29b fitted by closing the upper opening of the case main body 29a.
The case main body 29a and the lid portion 29b are integrally formed of resin, and are connected by a hinge portion 28a.

  In addition, the case portion 28 includes the insertion hole 29e into which the lead wire 26 is inserted and the portion of the element protecting resin 24 protrudes to the outside, and the sensor attachment hole 3a in a state where the measurement protrusion 27 is inserted into the sensor attachment hole 3a. And a fixing projection 29c that can be fitted into the. Further, the case portion 28 has a cylindrical portion 29d that protrudes with a gap around which the base end portion of the coil spring portion 27b can be fitted, around the insertion hole 29e and inside the fixing projection portion 29c. That is, the measurement projecting portion 27 is supported on the bottom surface of the case portion 28 by fitting and fixing the base end portion of the coil spring portion 27b to the outer periphery of the cylindrical portion 29d.

The fixing protrusion 29c is a claw having a hook-like tip, and the tip of the claw is locked to the periphery of the sensor attachment hole 3a when fitted into the sensor attachment hole 3a.
A pair of fixing protrusions 29c are arranged opposite to each other on the outer peripheral surface of the base end portion of the coil spring portion 27b. The fixing projection 29c is formed in a circular arc shape in the direction orthogonal to the protruding direction, and is difficult to be displaced with respect to the circular sensor mounting hole 3a.

A resin front end portion 27 a is provided by insert molding at the front end of the element protection resin 24 that seals the thermal element 4. The proximal end side of the resin distal end portion 27a is formed with a smaller diameter than the distal end side, and is fitted into the distal end portion of the coil spring portion 27b.
That is, when assembling the temperature sensor device 21 of the present embodiment, the resin tip 27a is fitted into the tip of the coil spring 27b with the lead wire 26 inserted through the coil spring 27b, and the wiring terminal 5 is covered and extended. The existing element protecting resin 24 is inserted into the coil spring portion 27b. Further, the lead wire 26 is disposed in the case body 29a through the cylindrical portion 29d and the insertion hole 29e, and the base end portion of the coil spring portion 27b is fixed to the cylindrical portion 29d. Furthermore, the temperature sensor device 21 is manufactured by extending the lead wire 26 from the gap between the case main body 29a and the lid portion 29b to the outside.

  When the temperature sensor device 21 is attached to the battery 2, the measurement protrusion 27 is inserted into the sensor attachment hole 3a, and the tip of the measurement protrusion 27 is further inserted into the measurement hole 12a of the battery body 12 at the back. At this time, the fixing protrusion 29 c is pushed into the sensor mounting hole 3 a and fitted, and the case portion 28 is fixed to the case 3 to fix the temperature sensor device 21 to the battery 2.

  As described above, in the temperature sensor device 21 of the second embodiment, since at least the heat-sensitive element 4 to the tip of the lead wire 26 are covered with the element protection resin 24, the coil spring 27b is inserted. The portion 27b can be expanded and contracted and can be wound around the wiring terminal 5 covered with the element protecting resin 24 to protect the wiring terminal 5 and the like.

Moreover, since the coil spring part 27b is a metal coil spring, the measurement protrusion part 27 which is excellent in durability and high in spring property can be obtained.
Further, since the case portion 28 includes a fixing protrusion 29c that can be fitted into the sensor mounting hole 3a with the measurement protrusion 27 inserted in the sensor mounting hole 3a, a fixing provided separately from the measurement protrusion 27 is provided. It becomes possible to fix to the sensor attachment hole 3a reliably and stably by the projection part 29c.

  The difference between the third embodiment and the second embodiment is that, in the second embodiment, the resin tip portion 27a, the coil spring portion 27b, and the case portion 28 are provided separately, whereas the third embodiment is different. In the temperature sensor device 31, as shown in FIGS. 12 to 15, the coil spring portion 37 b and the case portion 38 are integrally molded with resin.

  That is, in the third embodiment, the coil spring part 37b and the case part 38 are integrally formed at the same time, and it is not necessary to incorporate the coil spring part 27b as in the second embodiment. Therefore, when the resin tip 37a is insert-molded with the element protecting resin 24 attached to the tip of the lead wire 26, and the lead wire 26 is assembled to the coil spring portion 37b and the case portion 38 that are integrated, the lead wire 26 is The temperature sensor device 31 of the third embodiment can be assembled by closing the lid portion 39b connected to the case body 39a connected to the hinge portion 38a through the coil spring portion 37b and the insertion hole 39e.

  Thus, in the temperature sensor device 31 of the third embodiment, since the coil spring portion 37b and the case portion 38 are integrally molded with resin, the coil spring portion 37b and the case portion 38 can be integrally manufactured by one molding. High mass productivity can be obtained.

In addition, this invention is not limited to said each embodiment, A various change can be added in the range which does not deviate from the meaning of this invention.
For example, in each of the above embodiments, the temperature sensor device is directly attached to the case of the battery, but may be attached with a packing sandwiched between the case and the battery. In this case, it is possible to further prevent the position shift and the rattling of the temperature sensor device.

  DESCRIPTION OF SYMBOLS 1, 21, 31 ... Temperature sensor apparatus, 2 ... Battery (measuring object), 3a ... Sensor mounting hole, 4 ... Thermal element, 5 ... Wiring terminal, 6, 26 ... Lead wire, 7, 27, 37 ... Measurement protrusion part 7a, 27a, 37a ... resin tip, 7b ... resin spring, 7c ... fitting groove, 24 ... element protection resin, 8, 28, 38 ... case, 27b, 37b ... coil spring, 29a, 39a ... Case main body, 29c, 39c ... fixing projection, 29b, 39b ... lid

Claims (8)

A temperature sensor device that measures the internal temperature of the measurement object through a sensor mounting hole provided in the measurement object,
A thermal element;
A pair of wiring terminals connected at one end to the thermal element;
A pair of lead wires to which the other ends of the pair of wiring terminals are connected;
A case portion that houses at least the leading end side of the lead wire and supports the leading end side of the lead wire;
The thermosensitive element is arranged in the front end portion, and is provided around the wiring terminal or the lead wire protruding from the case portion, and includes a measurement protrusion portion that protrudes from the case portion and can be inserted into the sensor mounting hole,
The temperature sensor device characterized in that the measurement protrusion can be expanded and contracted in the axial direction and bendable. The temperature sensor device according to claim 1,
The temperature sensor device, wherein the measurement protrusion has a resin spring portion that covers the wiring terminal and is spirally formed with the wiring terminal. The temperature sensor device according to claim 1,
A coil spring portion having a base end fixed to the case portion;
A resin tip provided at the tip of the coil spring portion and containing the thermal element;
A temperature sensor device, wherein the coil spring portion is inserted in a state in which at least from the heat sensitive element to the tip of the lead wire is covered with an element protecting resin. The temperature sensor device according to claim 3,
The temperature sensor device, wherein the coil spring portion is a metal coil spring. The temperature sensor device according to claim 3,
The temperature sensor device, wherein the coil spring portion and the case portion are integrally molded with resin. In the temperature sensor device according to any one of claims 1 to 5,
The temperature sensor device according to claim 1, wherein the measurement projecting portion includes a fitting groove portion into which an inner edge portion of the sensor mounting hole can be fitted in a state where the measurement projecting portion is inserted into the sensor mounting hole on an outer periphery of a base end portion. In the temperature sensor device according to any one of claims 1 to 5,
The temperature sensor device according to claim 1, wherein the case portion includes a fixing protrusion that can be fitted into the sensor attachment hole in a state where the measurement protrusion is inserted into the sensor attachment hole. In the temperature sensor device according to any one of claims 1 to 7,
The temperature sensor device, wherein the measurement object is a battery.

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