JP2009192424A - Temperature sensor and temperature sensor integrated pressure sensor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a temperature sensor and a temperature sensor integrated pressure sensor for satisfactorily coating a temperature detection element and protection tubes for protecting its electrode lines. <P>SOLUTION: An interval between adjacent ends 53a, 54a opposite to a thermistor and existing in both protection tubes 53, 54 for protecting a pair of lead wires 52a, 52b of the thermistor 51 is wider than a predetermined interval at which a liquid coating material 60 creeps along both protection tubes 53, 54 between both protection tubes 53, 54 by a capillary phenomenon before it is fixed. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a temperature sensor in which a temperature detection element and a protective tube for protecting the electrode wire thereof are coated with a coating material, and a temperature sensor integrated pressure sensor employing this temperature sensor.

Conventionally, as a temperature sensor in which a temperature detection element and a protective tube protecting the electrode wire are coated with a coating material, for example, there is a thermistor temperature sensor disclosed in Patent Document 1 below. This thermistor temperature sensor is formed by applying an insulating coating resin to a thermistor element and an insulating coated lead in which a pair of leads (electrode wires) are coated with an insulating coating.
JP 11-132866 A

  By the way, the thermistor element and the pair of protective tubes for protecting the pair of electrode wires, respectively, are dried after being immersed in a coating material tank in which a coating material such as an organic coating material (polyamide) is stored in a liquid state. Is coated.

  In this coating process, until the coating material dries, the coating material crawls up along the two protective tubes between the two protective tubes due to capillary action, and as a result, the anti-temperature detection of both protective tubes. In some cases, coating is performed up to the element side end.

  In this case, if the ends on both sides of the opposite temperature detection element are separated from each other when wiring, etc., not only the coating material that coats the ends on the opposite side of the opposite temperature detection element is damaged, but also stress caused by this damage. May be transmitted to the coating material in the vicinity of the temperature detection element, causing damage such as cracks.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a temperature sensor and a temperature sensor that can satisfactorily coat a temperature detection element and a protective tube for protecting the electrode wire. The object is to provide a body pressure sensor.

  In order to achieve the above object, in the temperature sensor according to claim 1, the temperature detection element (51) provided with a pair of electrode wires (52a, 52b) and each of the electrode wires are protected. A temperature sensor (50) comprising two protective tubes (53, 54) and a coating material (60) for fixing and coating the temperature detecting element and a part of the two protective tubes protecting the electrode wires. ), The space between the opposite temperature detection element side ends (53a, 54a) of the two protective tubes is such that the liquid coating material before adhering is along the two protective tubes between the two protective tubes due to capillary action. A technical feature is that it is wider than a predetermined interval (L) that can be crawled up.

  According to the first aspect of the present invention, the distance between the end portions on the side opposite to the temperature detection element of the two protection tubes for protecting the pair of electrode wires of the temperature detection element is such that the liquid coating material before fixing is caused by the capillary phenomenon. In the meantime, it is wider than a predetermined interval that can be climbed along the protective tubes.

As a result, it is possible to prevent the coating material from scooping up along the two protective tubes between the two protective tubes due to a capillary phenomenon as described above until the coating material dries.
Therefore, it is possible to satisfactorily coat the temperature detection element and the protective tube for protecting the electrode wire.

  As in the second aspect of the invention, the temperature detection element may be a thermistor element.

  In the invention of claim 3, the interval between the opposite ends of the anti-temperature detection elements of the protective tubes is such that the protrusions provided so as to widen the diameter at the opposite ends of the anti-temperature detection elements are in contact with each other. It is wider than the predetermined interval.

  In this way, the protrusions provided so as to widen the diameter at the opposite end portions of the anti-temperature detection element are brought into contact with each other, whereby the interval between the anti-temperature detection element side ends of the protective tube can be easily and surely determined. It can be made wider than the interval.

  According to the invention of claim 4, the interval between the opposite ends of the two anti-temperature detecting elements of the protective tubes is such that the protruding portion provided at the opposite end of the two anti-temperature detecting elements of the two protective tubes is the other anti-temperature detecting element. By contacting the side end portion, the distance is wider than the predetermined interval.

  In this way, by providing a protrusion only at the opposite end of the protective tube on one side of the protective tube, compared to the case of providing a protrusion at the opposite end of the opposite temperature detection element, Since the operation of providing the projecting portion such as the positioning of the temperature sensor becomes easy, the manufacturing cost of the temperature sensor can be reduced.

  In the invention of claim 5, the protruding portion is formed by crushing a part of the end portion on the side opposite to the temperature detecting element so as to expand in the radial direction. Thereby, since a protrusion part can be formed without assembling another member and the crushing operation is a simple operation, the manufacturing cost of the temperature sensor can be reduced.

  Further, since the protrusion is formed by crushing a part of the end portion on the side opposite to the temperature detection element of the protective tube, the protective tube is an electrode wire inserted through the inside at the inner wall of the portion corresponding to the protrusion. Pressed against.

  Accordingly, when the protective tube protecting the electrode wire is immersed in the coating material tank, the protective tube is not displaced so as to float with respect to the electrode wire to be protected due to buoyancy or the like.

  In the invention of claim 6, both protective tubes are made of polyimide resin. Thereby, formation of the protrusion part by the crushing operation | work in Claim 5 can be implemented easily and reliably on the characteristic of the material called a polyimide resin.

  In the invention of claim 7, the protruding portion is constituted by a protruding member inserted into the end portion on the side opposite to the temperature detecting element. Thus, you may form the said protrusion part by inserting the protrusion member which is another member in the anti-temperature detection element side edge part of a protection tube. In particular, by adjusting the shape of the protruding member, the interval between the opposite ends of the anti-temperature detection element can be easily adjusted.

  In the invention of claim 8, a plurality of protrusions are provided at the end portion on the side opposite to the temperature detection element. As described above, since the plurality of protrusions make contact at a plurality of locations, even if a shape defect occurs in some of the protrusions, the interval between the anti-temperature detection element side ends is more than the predetermined interval. It can surely be widened.

  In the invention of claim 9, the interval between the opposite ends of the two anti-temperature detection elements of the protective tubes is wider than the predetermined interval by a connecting portion that connects the protective tubes in a separated state. As described above, the distance between the anti-temperature detection element side ends may be wider than the predetermined distance by connecting the two protection tubes in a state of being separated from each other by the connection portion.

  In the temperature sensor integrated pressure sensor according to the tenth aspect, the temperature of the measurement medium can be detected by the temperature sensor according to any one of the first to ninth aspects, and the pressure of the measurement medium can be detected by the pressure detection element. Detectable.

  Thus, a temperature sensor integrated pressure sensor that enjoys the action and effect of the temperature sensor according to each of claims 1 to 9, such as being able to satisfactorily coat a temperature detection element and a protective tube for protecting the electrode wire. Can be realized. Therefore, in the temperature sensor integrated pressure sensor employing such a temperature sensor, the coating material can be prevented from being damaged during wiring or the like.

Hereinafter, an embodiment of a temperature sensor integrated pressure sensor employing a temperature sensor according to the present invention will be described with reference to the drawings.
[First Embodiment]
A first embodiment of the present invention will be described with reference to FIG. FIG. 1 is an overall schematic sectional view of a temperature sensor integrated pressure sensor 10 employing a temperature sensor 50 according to the present invention.
The temperature sensor integrated pressure sensor 10 can be applied to, for example, an intake pressure sensor that is attached to an intake manifold of an automobile and used to measure the pressure of the intake manifold and the intake air temperature.

  As shown in FIG. 1, the temperature sensor integrated pressure sensor 10 mainly includes a connector case 20 on which a pressure detection element 40 capable of detecting the pressure of a measurement medium is mounted, and a connector case so as to cover the pressure detection element 40. 20 is provided with a housing 30 in which a pressure introduction hole 31 for introducing pressure into the pressure detection element 40 is formed, and a temperature sensor 50 capable of detecting the temperature of the measurement medium in the vicinity of the pressure introduction hole 31. Yes.

  The connector case 20 is formed by, for example, molding a resin material such as PPS (polyphenylene sulfide), PBT (polybutylene terephthalate), or an epoxy resin using a mold. An opening 21 for mounting the pressure detection element 40 is formed on the lower end surface of the connector case 20.

  The connector case 20 is integrally provided with a plurality of terminals 22 made of copper, 42 alloy or the like connected to the outside by insert molding. One side end of some of the terminals 22 is disposed so as to be exposed in the opening 21.

  The other end of each terminal 22 exposed at the opening 23 of the connector case 20 is electrically connected to an external circuit (such as an ECU of a vehicle) via an unillustrated external wiring member such as a wire harness. Connected.

  The pressure detection element 40 is a pressure detection unit that detects a measurement pressure. Specifically, the pressure detection element 40 detects a pressure and generates an electric signal having a level corresponding to the detected value. The pressure detection element 40 is constituted by, for example, a sensor chip made of a semiconductor and a glass pedestal that holds the sensor chip.

  Here, although the sensor chip is not limited, for example, it has a well-known structure using a piezoresistive effect made of a silicon semiconductor chip or the like, and is formed by a diaphragm and a diffused resistor which are distorted by pressure on its upper surface. The configuration includes a bridge circuit and the like.

  The pressure detecting element 40 is die-bonded between a bottom surface of the opening 21 on the lower end side of the connector case 20 and the glass pedestal with an adhesive (not shown) such as silicone rubber interposed therebetween.

  Each input / output terminal (not shown) of the pressure detection element 40 is electrically connected to the bonding pad of the terminal 22 via a bonding wire 24 such as gold or aluminum.

  The opening 21 on the lower end side of the connector case 20 is filled with a protective member 25 made of fluorine-based gel or fluorine-based rubber having excellent electrical insulation and chemical resistance. The protective member 25 seals and protects the interface between the terminal 22 and the connector case 20, the pressure detection element 40, the bonding wire 24, and the like.

  The housing 30 is connected to the connector case 20 so as to cover the opening 21 on the lower end side of the connector case 20. A pressure detection chamber 26 is formed between the connector case 20 and the housing 30.

  The housing 30 is configured as a pressure introduction port into which a measurement pressure is introduced. For example, similar to the connector case 20, the housing 30 is made of a heat-resistant resin material such as PBT, PPS, and the like. It is formed by using a mold.

  The housing 30 protrudes in the direction opposite to the connector case 20, and a pressure introduction hole 31 that communicates with the pressure detection chamber 26 from the protruding tip is formed in the housing 30. Further, an O-ring 32 is provided on the outer peripheral portion of the housing 30, and the temperature sensor integrated pressure sensor 10 can be hermetically attached to a sensor attachment portion (not shown) via the O-ring 32. Yes.

  A temperature sensor 50 having a thermistor 51 as a temperature detection element is disposed near the tip of the pressure introduction hole 31 of the housing 30. Both lead wires 52a and 52b, which are a pair of electrode wires that output a detection signal from the thermistor 51, are connected to one end portions of two terminals 33 integrally formed with the housing 30 by welding or the like. ing. The other end portions of these terminals 33 are connected to the terminals 22 of the corresponding connector cases 20 by welding or the like.

The configuration of the temperature sensor 50 will be described in detail with reference to FIG. FIG. 2 is a detailed configuration diagram of the temperature sensor 50 according to the first embodiment.
The temperature sensor 50 includes a thermistor 51, a pair of lead wires 52a and 52b, and protective tubes 53 and 54 made of polyimide resin for electrically protecting the lead wires 52a and 52b, respectively.

  Both protective tubes 53 and 54 have protrusions 55 and 56 formed by crushing a part of the anti-thermistor side end portions 53a and 54a that are not coated with a coating material 60, which will be described later, in a radial direction. Is provided. Since the projecting portions 55 and 56 are in contact with each other, the interval between the anti-thermistor side end portions 53a and 54a of the protective tubes 53 and 54 is made wider than a predetermined interval L.

  The thermistor 51 and thermistor side end portions 53b and 54b of the protective tubes 53 and 54 are insulatively coated with an organic coating material 60 such as polyamide resin for electrical protection.

The reason why the distance between the opposite thermistor side ends 53a and 54a of the protective tubes 53 and 54 is made wider than the predetermined distance L as described above is as follows.
Generally, the thermistor side end portions 53b and 54b of the thermistor 51 and the protective tubes 53 and 54 are coated by being dried after being immersed in a coating material tank in which the coating material 60 is stored in a liquid state.

  At this time, the anti-thermistor side end portions 53a and 54a are more than a predetermined distance L that can be scooped up along both the protective tubes 53 and 54 between the protective tubes 53 and 54 by capillary action. When the interval is narrow, the anti-thermistor is arranged so that the coating material 60 follows the protection tubes 53 and 54 between the protection tubes 53 and 54 by capillary action until the coating material 60 dries in the coating process. It will crawl up to the side edge parts 53a and 54a.

  Therefore, by causing the protrusions 55 and 56 provided on the anti-thermistor-side end portions 53a and 54a to come into contact with each other to make the interval between the anti-thermistor-side end portions 53a and 54a wider than the predetermined interval L, the capillary phenomenon occurs. The coating material 60 is prevented from creeping up between the end portions 53a and 54a on the side of the thermistor.

  Further, since the projecting portions 55 and 56 are formed by crushing a part of the end portions 53a and 54a on the anti-thermistor side of the protective tubes 53 and 54, respectively, both the protective tubes 53 and 54 are provided with the projecting portions 55 and 56, respectively. At the inner wall, it is fixed so as to be pressed against the lead wires 52a and 52b passing through the inside.

  Since both the protective tubes 53 and 54 and the lead wires 52a and 52b are fixed in this way, when the protective tubes 53 and 54 protecting the lead wires 52a and 52b are immersed in the coating material tank, both the protection tubes 53 and 54 are protected by buoyancy or the like. The tubes 53 and 54 are not displaced so as to float with respect to the lead wires 52a and 52b.

  As described above, in the temperature sensor 50 according to the first embodiment, the anti-thermistor side end portions 53a and 54a of the two protection tubes 53 and 54 for protecting the pair of lead wires 52a and 52b of the thermistor 51 are connected to each other. The interval is wider than the predetermined interval L at which the liquid coating material 60 before adhering can be lifted along the protective tubes 53 and 54 between the protective tubes 53 and 54 by capillary action.

This prevents the coating material 60 from scooping up between the protection tubes 53 and 54 due to the capillary phenomenon as described above until the coating material 60 dries. can do.
Therefore, it is possible to satisfactorily coat the thermistor 51 and the protective tubes 53 and 54 that protect both the lead wires 52a and 52b.

  Further, in the temperature sensor 50 according to the first embodiment, the interval between the anti-thermistor-side end portions 53a and 54a of the protective tubes 53 and 54 is such that the diameter increases at the anti-thermistor-side end portions 53a and 54a. The protrusions 55 and 56 that are provided are in contact with each other to be wider than the predetermined interval L.

  In this way, the anti-thermistor side end portions of the protective tubes 53 and 54 can be easily and surely brought into contact with each other by bringing the projecting portions 55 and 56 provided so as to widen the diameter at the anti-thermistor side end portions 53a and 54a. The interval between 53a and 54a can be made wider than the predetermined interval L.

  Furthermore, in the temperature sensor 50 according to the first embodiment, the projecting portions 55 and 56 are formed by crushing so as to expand a part of the anti-thermistor side end portions 53a and 54a in the radial direction. Thereby, since both the protrusions 55 and 56 can be formed without assembling separate members, and the crushing operation is also a simple operation, the manufacturing cost of the temperature sensor 50 can be reduced.

  At this time, the projecting portions 55 and 56 are formed by crushing part of the anti-thermistor side end portions 53a and 54a of the protective tubes 53 and 54, respectively. The inner walls of the portion corresponding to 56 are pressed against the lead wires 52a and 52b passing through the inside.

  Thereby, when both the protection tubes 53 and 54 which protected both the lead wires 52a and 52b are immersed in a coating material tank, both the protection tubes 53 and 54 float with respect to the lead wires 52a and 52b which should be protected by buoyancy. Thus, there is no position shift.

  In particular, since both the protective tubes 53 and 54 are made of polyimide resin, the formation of the protrusions 55 and 56 by the crushing operation described above should be easily and reliably performed due to the characteristics of the material called polyimide resin. Can do.

  Further, in the temperature sensor integrated pressure sensor 10 that employs the temperature sensor 50 according to the first embodiment, the thermistor 51 and the protective tubes 53 and 54 that protect the lead wires 52a and 52b can be satisfactorily coated. Thus, it is possible to realize a temperature sensor integrated pressure sensor that enjoys the functions and effects of the temperature sensor 50 described above. Therefore, in the temperature sensor integrated pressure sensor 10 employing such a temperature sensor 50, it is possible to prevent the coating material 60 from being damaged during wiring or the like.

FIG. 3 is a detailed configuration diagram of the temperature sensor according to the first modification of the first embodiment.
As a first modification of the temperature sensor according to the first embodiment, as shown in FIG. 3, in addition to the protruding portions 55 and 56 at the anti-thermistor side end portions 53a and 54a of the protective tubes 53 and 54, a new Alternatively, the protrusions 55a and 56a may be formed by crushing.

  As described above, since the plurality of projecting portions 55, 56, 55a, and 56a are in contact with each other at a plurality of locations, even if a shape defect occurs in some of the projecting portions, the anti-thermistor side end portions 53a and 54a The interval can be surely made wider than the predetermined interval L.

FIG. 4 is a detailed configuration diagram of the temperature sensor according to the second modification of the first embodiment.
As a second modification of the temperature sensor according to the first embodiment, as shown in FIG. 4, by providing a protruding portion 55 b only on one of the protective tubes, for example, the anti-thermistor side end portion 53 a of the protective tube 53. The interval between the anti-thermistor side end portions 53a and 54a is made wider than the predetermined interval L.

  Thus, by providing the protrusion 55b only at the anti-thermistor side end 53a of one protective tube 53, the other protrusion is compared with the case where the protrusions are provided at both the anti-thermistor side ends 53a, 54a. Since the operation of providing the protruding portion such as the alignment with the portion becomes easy, the manufacturing cost of the temperature sensor 50 can be reduced.

[Second Embodiment]
Next, a temperature sensor according to a second embodiment of the present invention will be described with reference to FIG. FIG. 5 is a detailed configuration diagram of the temperature sensor 50 in the second embodiment.

  In the temperature sensor 50 according to the second embodiment, instead of the projecting portions 55 and 56 described in the first embodiment, projection members 57 and 58 that are members different from the protective tubes 53 and 54 are newly adopted. This is different from the temperature sensor according to the first embodiment. Therefore, substantially the same components as those of the temperature sensor of the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

  As shown in FIG. 5, annular projection members 57 and 58 are fixedly inserted into the end portions 53a and 54a on the anti-thermistor side of the protective tubes 53 and 54, respectively. The protrusions 57 and 58 come into contact with each other, so that the distance between the anti-thermistor side end portions 53a and 54a is larger than the predetermined distance L.

  As described above, in the temperature sensor 50 according to the second embodiment, the protruding members 57 and 58 inserted through the anti-thermistor side ends 53a and 54a of the protective tubes 53 and 54 are in contact with each other. The distance between the anti-thermistor side end portions 53a and 54a may be wider than the predetermined distance L by the contact between the protruding members 57 and 58.

  In particular, by adjusting the shape of the protruding members 57 and 58, the distance between the anti-thermistor side end portions 53a and 54a can be easily adjusted.

FIG. 6 is a detailed configuration diagram of the temperature sensor according to the first modification of the second embodiment.
As a first modification of the temperature sensor according to the second embodiment, as shown in FIG. 6, in addition to the protruding members 57 and 58 at the anti-thermistor side end portions 53a and 54a of the protective tubes 53 and 54, a new The projecting members 57a and 58a may be inserted through.

  As described above, since the plurality of projecting members 57, 58, 57a, and 58a are in contact with each other at a plurality of locations, even if a shape defect occurs in some of the projecting members, the anti-thermistor side end portions 53a and 54a The interval can be surely made wider than the predetermined interval L.

FIG. 7 is a detailed configuration diagram of a temperature sensor according to a second modification of the second embodiment.
As a second modification of the temperature sensor according to the second embodiment, as shown in FIG. 7, by providing a protruding member 57 b only on one of the protective tubes, for example, the end portion 53 a opposite to the thermistor of the protective tube 53. The interval between the anti-thermistor side end portions 53a and 54a is made wider than the predetermined interval L.

  Thus, by providing the protrusion member 57b only at the anti-thermistor side end portion 53a of one protective tube 53, the other protrusion is compared with the case where the protrusion members are provided at both anti-thermistor side end portions 53a and 54a. Since the operation of providing the protruding member such as the alignment with the member becomes easy, the manufacturing cost of the temperature sensor 50 can be reduced.

[Third Embodiment]
Next, a temperature sensor according to a third embodiment of the present invention will be described with reference to FIG. FIG. 8 is a detailed configuration diagram of the temperature sensor 50 according to the third embodiment.

  In the temperature sensor 50 according to the third embodiment, the connection part 59 is used instead of the protrusions 55 and 56 described in the first embodiment, so that the temperature sensor according to the first embodiment is used. And different. Therefore, substantially the same components as those of the temperature sensor of the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

  As shown in FIG. 8, the connecting portion 59 is formed integrally with the protective tubes 53 and 54 so as to be connected in a state where the protective tubes 53 and 54 are separated from each other. Thereby, the space | interval of anti-thermistor side edge part 53a, 54a is wider than the said predetermined | prescribed space | interval L. FIG.

  Thus, in the temperature sensor 50 according to the third embodiment, the distance between the anti-thermistor side ends 53a, 54a of the protective tubes 53, 54 is such that the protective tubes 53, 54 are separated from each other. The connecting portion 59 to be connected is wider than the predetermined distance L. Thus, the distance between the anti-thermistor-side end portions 53a and 54a may be made wider than the predetermined distance L by connecting the protective tubes 53 and 54 in a state of being separated from each other by the connecting portion 59. .

The present invention is not limited to the above embodiments, and may be embodied as follows. Even in this case, the same operations and effects as those of the above embodiments can be obtained.
(1) The protective tubes 53 and 54 in each of the above embodiments are not limited to being formed of polyimide resin, but may be formed of those that can electrically protect both the lead wires 52a and 52b. In particular, a material that can easily form the protrusions 55, 55a, 55b, 56, and 56a by a crushing operation is preferable.

(2) The protruding members 57, 58, 57a, 58a, and 57b in the second embodiment are not limited to being formed in an annular shape, and may be any shape that can reliably contact other members such as a rectangular shape. Good.

(3) The temperature sensor 50 is not limited to being used in the temperature sensor integrated pressure sensor 10 described above, but may be employed in another device such as a sensor.

1 is an overall schematic cross-sectional view of a temperature sensor integrated pressure sensor employing a temperature sensor according to the present invention. It is a detailed block diagram of the temperature sensor in 1st Embodiment. It is a detailed block diagram of the temperature sensor in the 1st modification of 1st Embodiment. It is a detailed block diagram of the temperature sensor in the 2nd modification of 1st Embodiment. It is a detailed block diagram of the temperature sensor in 2nd Embodiment. It is a detailed block diagram of the temperature sensor in the 1st modification of 2nd Embodiment. It is a detailed block diagram of the temperature sensor in the 2nd modification of 2nd Embodiment. It is a detailed block diagram of the temperature sensor in 3rd Embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Temperature sensor integrated pressure sensor 40 ... Pressure detection element 50 ... Temperature sensor 51 ... Thermistor (temperature detection element)
52a, 52b ... Lead wire (electrode wire)
53, 54 ... Protective tube 53a, 54a ... Anti-thermistor side end (anti-temperature detection element side end)
53b, 54b ... Thermistor side end portions 55, 55a, 55b, 56, 56a ... Projection portions 57, 57a, 57b, 58, 58a ... Projection members 59 ... Connection portions 60 ... Coating material L ... Predetermined spacing

Claims (10)

A temperature detecting element provided with a pair of electrode wires;
Two protective tubes for protecting each of the electrode wires,
A coating material for fixing and coating the temperature detecting element and a part of the two protective tubes protecting the electrode wires;
In a temperature sensor comprising:
The distance between the opposite end portions of the two anti-temperature detection elements of the protective tubes is greater than a predetermined interval at which the liquid coating material before adhering can be rolled up along the protective tubes between the two protective tubes by capillary action. A temperature sensor characterized by its widening.   The temperature sensor according to claim 1, wherein the temperature detection element is a thermistor element.   The distance between the opposite ends of the protective tubes on the side opposite to the temperature detecting element is wider than the predetermined distance as a result of the protrusions provided so as to increase the diameter at the ends on the opposite side of the temperature detecting element contact each other. The temperature sensor according to claim 1, wherein:   The distance between the opposite ends of the two anti-temperature detection elements of the protective tubes is such that the protruding portion provided at one of the two anti-temperature detection element-side ends of the two protective tubes is the opposite end of the anti-temperature detection element. The temperature sensor according to claim 1, wherein the temperature sensor becomes wider than the predetermined interval by contacting with the temperature sensor.   5. The temperature sensor according to claim 3, wherein the protrusion is formed by crushing a part of the end portion on the side opposite to the temperature detection element so as to expand in a radial direction.   The temperature sensor according to claim 5, wherein both the protective tubes are made of polyimide resin.   5. The temperature sensor according to claim 3, wherein the protruding portion is configured by a protruding member inserted through the end portion on the side opposite to the temperature detection element.   The temperature sensor according to any one of claims 3 to 7, wherein a plurality of the protrusions are provided at an end portion on the side opposite to the temperature detection element.   The distance between the opposite ends of the temperature detection elements of the two protection tubes is wider than the predetermined distance by a connecting portion that connects the two protection tubes in a separated state. 2. The temperature sensor according to 2.   A temperature sensor-integrated pressure sensor capable of detecting the temperature of the measurement medium by the temperature sensor according to any one of claims 1 to 9, and capable of detecting the pressure of the measurement medium by a pressure detection element.

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