JP2015078851A

JP2015078851A - Temperature sensor

Info

Publication number: JP2015078851A
Application number: JP2013214713A
Authority: JP
Inventors: 健太郎潮田; Kentaro Ushioda; 小林　浩; Hiroshi Kobayashi; 浩小林; 清悟在間; Seigo Zaima
Original assignee: TDK Corp
Current assignee: TDK Corp
Priority date: 2013-10-15
Filing date: 2013-10-15
Publication date: 2015-04-23
Anticipated expiration: 2033-10-15
Also published as: JP6314413B2

Abstract

PROBLEM TO BE SOLVED: To provide a temperature sensor which maintains a stable contact even if minute fluctuation is generated on a position of a detection object surface and to realize the temperature sensor hardly affected by an external atmospheric temperature.SOLUTION: A temperature sensor includes: a film including: a first end part fixed to a first support part; a first belt-like part continuing to the first end part and extending from the first end part to a first direction in a state of having sagging; and a width wide part continuing to the first belt-like part and having the width wider than that of the first belt-like part in a second direction orthogonal to the first direction; a thermo sensitive element fixed substantially to a center part in the second direction of a top surface of the film in the width wide part; and an elastic body surrounding a thermo sensitive element and arranged on the top surface of the film and pressing a back surface of the film to a detection object surface by repulsive force of the deformation and brought into contact with the top surface of the film.

Description

本発明は、感温素子を用いた温度センサに関する。 The present invention relates to a temperature sensor using a temperature sensitive element.

検出対象物の表面温度を検知する手段として、感温素子を検知対象物の表面に接触させる方法は一般的である。更に接着剤などで固定する方法もとられるが、接着工程が生じること、表面の材質によっては接着力が不十分であったり、温度サイクルによって経年変化して接着剤が変質して剥離するなどの問題を生じる可能性がある。接着を用いず単に押し当てるだけの押し当て型温度センサは、接着工程も必要なく、組立てやすく、また接着剤の変質なども問題もない。 As a means for detecting the surface temperature of the detection object, a method of bringing a temperature sensing element into contact with the surface of the detection object is common. In addition, it can be fixed with an adhesive, etc., but the adhesive process may occur, the adhesive strength may be insufficient depending on the material of the surface, or the adhesive may change over time due to the temperature cycle and peel off. May cause problems. A pressing-type temperature sensor that simply presses without using an adhesive does not require a bonding process, is easy to assemble, and has no problem with deterioration of the adhesive.

例えば、押し当て型温度センサとして、特許文献１には、ＦＰＣ（フレキシブル回路基板）を環状に屈曲させ、その内側に感温素子を固定し、環状に屈曲したＦＰＣの外周面を検知対象に押し当てることにより、検知対象の温度を検出する温度センサが示されている。
また、別の押し当て型温度センサとして、特許文献２には、ＦＰＣの帯を検出対象方向に屈曲させ、屈曲の頂点において屈曲の外側のＦＰＣの面の検出対象に押し当て、屈曲の頂点であり屈曲の内側のＦＰＣの面上に配置した感温素子で検知対象の温度を検知する温度センサが示されている。また、感熱素子は弾性体によって覆われている。 For example, as a pressing type temperature sensor, Patent Document 1 discloses that an FPC (flexible circuit board) is bent in an annular shape, a temperature sensitive element is fixed on the inner side, and the outer peripheral surface of the annular bent FPC is pressed against a detection target. A temperature sensor for detecting the temperature of a detection target by applying is shown.
As another pressing-type temperature sensor, Patent Document 2 discloses that an FPC band is bent in the direction of a detection target, pressed against the detection target on the surface of the FPC outside the bending at the top of the bending, and at the top of the bending. A temperature sensor is shown that detects the temperature of a detection target with a temperature sensing element arranged on the surface of the FPC inside the bend. The thermal element is covered with an elastic body.

特開２００９−２３１００３号公報JP 2009-23003 A 特開２０１０−１７５４９４号公報JP 2010-175494 A

従来の接触型温度センサにおいては検出対象物の位置ずれ、振動などが加わった場合、安定して押し当て条件が保たれない可能性があり、検知対象物との接触状況が変動すると検知対象物表面から感熱素子への熱の伝達状況が変動し、検出精度が低下する。特許文献１に示された温度センサにおいては、感温素子は底面だけがＦＰＣを通じて検知対象からの熱を受けるが、感温素子の上面および側面は自由空間の雰囲気に接しており、雰囲気温度の影響や気流、対流の影響を受ける。感温素子の６面のうち底面の１つの面だけが検知温度に接するが、他の５つの面は雰囲気に晒されている。特に検知対象温度と雰囲気温度との間に大きな差がある場合、感温素子は雰囲気温度の影響が支配的となる。従って検出精度が低下する。また、環状に屈曲したＦＰＣは垂直方向には変形が容易であるので、検知対象との垂直方向の距離の誤差や振動などによる距離の変化には追従できるが、検知対象物が円筒面に沿って円筒の軸と平行に微小なずれを生じたときは、ＦＰＣはそのずれに対応して動くことは出来ない。従ってその方向に振動などによりずれが生じたときはそのずれに追従できず、ＦＰＣと検知対象物表面との間に擦れが生じる。これは検知対象が硬いものである場合は、ＦＰＣ表面の傷や磨耗となり、検知対象が柔かいものである場合は、検知対象物表面の傷や磨耗となる。また特許文献２に示された温度センサにおいては、第２の弾性体がＦＰＣの上に乗っているだけで、固定部に結合していないので、検知対象物の位置ずれに対して弾性体の位置が不安定になり、検知対象とＦＰＣとの接触条件が変動し、感度が不安定になる。従って検出精度が低下する。また、感温素子の電極に接続される銅箔パターンは単純に直線的なものであるので、銅箔パターンを通じて外部の雰囲気との熱伝導が生じるため、検知温度は外部雰囲気温度の影響を受けやすいものとなる。 In the conventional contact-type temperature sensor, if the detection object is misaligned or vibrated, the pressing condition may not be maintained stably. The state of heat transfer from the surface to the thermosensitive element fluctuates, and the detection accuracy decreases. In the temperature sensor shown in Patent Document 1, only the bottom surface of the temperature sensing element receives heat from the detection target through the FPC, but the top surface and the side surface of the temperature sensing element are in contact with the free space atmosphere, Influenced by influence, airflow and convection. Of the six surfaces of the temperature sensitive element, only one of the bottom surfaces is in contact with the detected temperature, while the other five surfaces are exposed to the atmosphere. In particular, when there is a large difference between the detection target temperature and the ambient temperature, the influence of the ambient temperature is dominant in the temperature sensitive element. Accordingly, the detection accuracy is lowered. In addition, since the FPC bent in an annular shape can be easily deformed in the vertical direction, it can follow a change in distance due to an error in the vertical distance from the detection target or vibration, but the detection target moves along the cylindrical surface. Thus, when a slight deviation occurs in parallel with the axis of the cylinder, the FPC cannot move corresponding to the deviation. Therefore, when a deviation occurs in the direction due to vibration or the like, the deviation cannot be followed and rubbing occurs between the FPC and the surface of the detection target. When the detection target is a hard object, the FPC surface is scratched or worn. When the detection object is a soft object, the detection target surface is scratched or worn. Further, in the temperature sensor disclosed in Patent Document 2, the second elastic body is only on the FPC and is not coupled to the fixed portion. The position becomes unstable, the contact condition between the detection target and the FPC changes, and the sensitivity becomes unstable. Accordingly, the detection accuracy is lowered. In addition, since the copper foil pattern connected to the electrode of the temperature sensing element is simply linear, heat conduction with the external atmosphere occurs through the copper foil pattern, so the detected temperature is affected by the external ambient temperature. It will be easy.

本発明は、この問題を鑑みてなされたもので、検知対象物表面の位置の微小な変動があっても安定した接触を保ち、かつ外部雰囲気温度の影響を受けにくい温度センサを実現することを目的とする。 The present invention has been made in view of this problem, and realizes a temperature sensor that maintains stable contact even when there is a minute change in the position of the surface of the detection target and is less susceptible to the influence of the external ambient temperature. Objective.

上記目的を達成するために、本発明による温度センサは、第１の支持部に固定される第１の端部と、第１の端部と連続するとともにたるみを持った状態で第１の端部から第１の方向に延在する第１の帯状部と、第１の帯状部と連続するとともに第１の方向とは直交する第２の方向において第１の帯状部より大きな幅を有する幅広部と、を有するフィルムと、幅広部において、フィルムのおもて面の第２の方向における概ね中央部に固定された感温素子と、幅広部において、感温素子を囲むともに、フィルムのおもて面上に配置され、変形の反発力によりフィルムの裏面を検知対象物表面に押付けるとともに、フィルムのおもて面と接する弾性体と、を有する。 In order to achieve the above object, a temperature sensor according to the present invention includes a first end fixed to the first support portion, a first end that is continuous with the first end and has a slack. A first belt-like portion extending from the first portion in a first direction, and a wide width that is larger than the first belt-like portion in a second direction that is continuous with the first belt-like portion and orthogonal to the first direction A film having a portion, a temperature-sensitive element fixed at a substantially central portion in the second direction of the front surface of the film in the wide portion, and the temperature-sensitive element in the wide portion and surrounding the temperature-sensitive element. And an elastic body that is disposed on the front surface and presses the back surface of the film against the surface of the object to be detected by the repulsive force of deformation and is in contact with the front surface of the film.

このような構成の温度センサを検知対象物に押し当てると、そのフィルムの幅広部は検知対象面に柔かく押し当てられ、検知対象面が取付位置のばらつきや振動により微小に変動しても、弾性体の反発力により安定した接触を保つため、幅広部おもて面の第２の方向における中央部にある感温素子は安定して検知対象物表面の温度を検出できる。また、感温素子を囲む弾性体により、外部雰囲気温度の影響を受けにくくなっている。 When the temperature sensor with such a configuration is pressed against the object to be detected, the wide part of the film is softly pressed against the surface to be detected, and even if the surface to be detected fluctuates slightly due to variations in mounting position or vibrations, it is elastic. In order to maintain a stable contact due to the repulsive force of the body, the temperature sensing element in the center portion in the second direction of the wide portion front surface can stably detect the temperature of the surface of the detection object. In addition, the elastic body surrounding the temperature sensing element is less susceptible to the influence of the external ambient temperature.

また、本発明において、弾性体の底面は、底面の内周側から外周側へ向かう下に凸の凸面であることが望ましい。 In the present invention, the bottom surface of the elastic body is preferably a convex surface that protrudes downward from the inner peripheral side to the outer peripheral side.

また、本発明において、フィルムは、第２の支持部に固定される第２の端部と、幅広部および第２の端部と連続するとともにたるみを持った状態で第２の端部から第１の方向とは逆向きに延在するとともに、第２の方向において幅広部より小さな幅を有する第２の帯状部を有していてもよい。 In the present invention, the film is continuous from the second end portion fixed to the second support portion, the wide portion and the second end portion, and has a slack from the second end portion. You may have the 2nd strip | belt-shaped part which has a width | variety smaller than the wide part in a 2nd direction while extending in the direction opposite to 1 direction.

また、本発明において、弾性体および感温素子は、ケースの内壁とケース内に収納された検知対象物との間に配置されるとともに、弾性体の底面と対向するフィルムの裏面が検知対象である検知対象物表面と接し、弾性体の上部において、第３の支持部から押さえられることにより弾性体が変形し、変形の反発力によりフィルムの裏面を検知対象物表面に押付け、第３の支持部において弾性体がケース内壁に固定されてもよい。 In the present invention, the elastic body and the temperature sensitive element are disposed between the inner wall of the case and the detection target housed in the case, and the back surface of the film facing the bottom surface of the elastic body is the detection target. The elastic body is deformed by being in contact with the surface of a certain detection object and being pressed from the third support portion at the upper part of the elastic body, and the back surface of the film is pressed against the surface of the detection object by the repulsive force of the deformation, and the third support The elastic body may be fixed to the inner wall of the case at the portion.

また、本発明において、感温素子と弾性体との接触を避けるための空間が設けられていてもよい。あるいは、発泡性樹脂により感温素子が被覆されるとともに、発泡性樹脂と弾性体とが接していてもよい。 In the present invention, a space for avoiding contact between the temperature sensitive element and the elastic body may be provided. Alternatively, the temperature sensitive element may be covered with the foamable resin, and the foamable resin and the elastic body may be in contact with each other.

また、本発明において、フィルムのおもて面に形成された感温素子の電極と接合するためのランドパターンと、幅広部および第１の帯状部において、ランドパターンに連結するフィルムのおもて面にフィルムと一体に形成された信号用銅箔パターンまたはフィルムのおもて面に配置された信号用ワイヤーと、を有してもよい。また、感温素子からの信号用銅箔パターンまたは信号用ワイヤーが蛇行する部分を持っていても良い。さらに、信号用銅箔パターンまたは信号用ワイヤーは、感温素子の周囲においては折り返して引き回される、あるいは渦巻状に引き回されていてもよい。 Further, in the present invention, the land pattern for joining to the electrode of the temperature sensitive element formed on the front surface of the film, and the front of the film connected to the land pattern in the wide portion and the first strip-shaped portion. A signal copper foil pattern formed integrally with the film on the surface or a signal wire disposed on the front surface of the film may be included. Further, the signal copper foil pattern or the signal wire from the temperature sensitive element may have a meandering portion. Further, the signal copper foil pattern or the signal wire may be folded around the temperature sensing element or may be drawn in a spiral shape.

また、本発明において、感温素子周囲の近傍領域にランドパターンに連結している集熱用銅箔パターンを持っていてもよい。集熱用銅箔パターンは向かい合った一対の半円形であり、その中心に感温素子が設けられていても良い。あるいは、集熱用銅箔パターンは電極を中心に放射状に伸びていてもよい。さらに、その集熱用銅箔パターンは放射状に伸びかつ枝分れしていてもよい。さらに、集熱用銅箔パターンがフィルム裏面にも設けられていてもよい。 Moreover, in this invention, you may have the copper foil pattern for heat collection connected with the land pattern in the vicinity area | region around a temperature sensing element. The heat-collecting copper foil pattern is a pair of facing semicircles, and a temperature sensitive element may be provided at the center thereof. Alternatively, the heat-collecting copper foil pattern may extend radially around the electrode. Furthermore, the copper foil pattern for heat collection may extend radially and branch. Furthermore, the copper foil pattern for heat collection may be provided also on the film back surface.

また、本発明において、弾性体は、信号用銅箔パターンまたは信号用ワイヤーに対向する部分に窪みを有し、信号用銅箔パターンまたは信号用銅箔パターン上のフィルムと一体に形成された保護層または信号用ワイヤーに、弾性体の表面が接触しないようにすることが望ましい。さらに、第１および／または第２の帯状部は弾性体側面からたるみを持った状態で離れて保持されていることが望ましい。さらに、第１および第２の帯状部は、幅広部および感熱素子を挟んで対抗して設けられ、第１および第２の帯状部の中心線同士が段違いであるであってもよい。 In the present invention, the elastic body has a depression in a portion facing the signal copper foil pattern or the signal wire, and is a protection formed integrally with the film on the signal copper foil pattern or the signal copper foil pattern. It is desirable that the surface of the elastic body does not contact the layer or the signal wire. Furthermore, it is desirable that the first and / or second belt-like portions are held apart from each other with a slack from the side surface of the elastic body. Furthermore, the first and second belt-shaped portions may be provided to face each other with the wide portion and the thermal element interposed therebetween, and the center lines of the first and second belt-shaped portions may be uneven.

また、本発明において、弾性体全体が発泡性樹脂であってもよい。 In the present invention, the entire elastic body may be a foamable resin.

本発明によれば、検知対象物表面の位置の微小な変動あっても安定した接触を保ち、かつ外部雰囲気温度の影響を受けにくい温度センサを実現できる。 According to the present invention, it is possible to realize a temperature sensor that maintains stable contact even when there is a minute change in the position of the surface of the detection object and is less susceptible to the influence of the external ambient temperature.

（ａ）実施形態１の外形を示す図である。（ｂ）実施形態１の断面を示す図である。（ｃ）実施形態１のＦＰＣを示す図である。(A) It is a figure which shows the external shape of Embodiment 1. FIG. (B) It is a figure which shows the cross section of Embodiment 1. FIG. (C) It is a figure which shows FPC of Embodiment 1. FIG. （ａ）実施形態２の外形を示す図である。（ｂ）実施形態２の断面を示す図である。（ｃ）実施形態２のＦＰＣを示す図である。(A) It is a figure which shows the external shape of Embodiment 2. FIG. (B) It is a figure which shows the cross section of Embodiment 2. FIG. (C) It is a figure which shows FPC of Embodiment 2. FIG. 実施形態３を示す図である。FIG. 6 is a diagram showing a third embodiment. （ａ）実施形態４の外形を示す図である。（ｂ）実施形態４の断面を示す図である。（ｃ）実施形態４のＦＰＣを示す図である。(A) It is a figure which shows the external shape of Embodiment 4. FIG. (B) It is a figure which shows the cross section of Embodiment 4. FIG. (C) It is a figure which shows FPC of Embodiment 4. FIG. （ａ）実施形態５の外形を示す図である。（ｂ）実施形態５の断面を示す図である。（ｃ）実施形態５のＦＰＣを示す図である。(A) It is a figure which shows the external shape of Embodiment 5. FIG. (B) It is a figure which shows the cross section of Embodiment 5. FIG. (C) It is a figure which shows FPC of Embodiment 5. FIG. 実施形態６を示す図である。It is a figure which shows Embodiment 6. FIG. 実施形態７を示す図である。FIG. 10 is a diagram showing a seventh embodiment. （ａ）実施形態８の銅箔を折り返す方式を示す図である。（ｂ）実施形態８の銅箔を複数回折り返す方式を示す図である。（ｃ）実施形態８の銅箔を渦巻状にする方式を示す図である。(A) It is a figure which shows the system which returns the copper foil of Embodiment 8. FIG. (B) It is a figure which shows the system which folds back the copper foil of Embodiment 8 two or more times. (C) It is a figure which shows the system which makes the copper foil of Embodiment 8 spiral. 実施形態９を示す図である。FIG. 10 is a diagram illustrating a ninth embodiment. 実施形態１０を示す図である。It is a figure which shows Embodiment 10. FIG. 実施形態１１を示す図である。It is a figure which shows Embodiment 11. FIG. （ａ）実施形態１２のＦＰＣのおもて面を示す図である。（ｂ）実施形態１２のＦＰＣの裏面を示す図である。(A) It is a figure which shows the front surface of FPC of Embodiment 12. FIG. (B) It is a figure which shows the back surface of FPC of Embodiment 12. FIG. （ａ）実施形態１３、１４の外形を示す図である。（ｂ）実施形態１３、１４の断面を示す図である。(A) It is a figure which shows the external shape of Embodiment 13,14. (B) It is a figure which shows the cross section of Embodiment 13,14. （ａ）実施形態１５のＦＰＣのおもて面を示す図である。（ｂ）実施形態１５の断面を示す図である。(A) It is a figure which shows the front surface of FPC of Embodiment 15. (B) It is a figure which shows the cross section of Embodiment 15. FIG.

以下、本発明の実施形態について説明するが、まず、本実施形態の原理について説明する。なお、説明において、同一要素又は同一機能を有する要素には、同一符号を用いることとし、重複する説明は省略する。 Hereinafter, embodiments of the present invention will be described. First, the principle of the present embodiment will be described. In the description, the same reference numerals are used for the same elements or elements having the same function, and redundant description is omitted.

（実施形態１）
図１は本実施形態の温度センサの原理図である。本実施形態の温度センサ装置１００はＦＰＣ（ＦｌｅｘｉｂｌｅＰｒｉｎｔＣｉｒｃｕｉｔ）１０４、感温素子１０５、弾性体１０６、固定部１０７、リード線１０８より構成される。ここで、温度センサ１０は、ＦＰＣ（ＦｌｅｘｉｂｌｅＰｒｉｎｔＣｉｒｃｕｉｔ）１０４、感温素子１０５、弾性体１０６を備えている。ＦＰＣ１０４はポリイミドフィルムなどのしなやかな屈曲性をもつフィルムを基材とするので、図１（ａ）、（ｂ）に示すように、屈曲して温度センサ装置１００に組み込むことが可能である。ここで、ＦＰＣ１０４が伸展された形は、図１（ｃ）のような形状であり、第１の端部となる端子部１０３から第１の方向に延在する第１の帯状部１０１と、第１の帯状部１０１に連なり、第１の方向と直交する第２の方向において、第１の帯状部１０１より幅の広い幅広部１０２と、第１の帯状部１０１を間に挟んで、幅広部１０２の反対側に連なる第１の端部となる端子部１０３とからなる。第１の帯状部１０１は、幅広部１０２より第２の方向における幅が狭い場所が存在すればよく、狭い幅が同一の幅であってもよく、幅広部１０２より第２の方向における幅が狭い異なる複数の幅が存在してもよい。ここで、第１の方向とは、屈曲して組み込む場合は、伸展された場合の伸展された方向を屈曲した方向を指すものとする。幅広部１０２の第１および第２の方向におけるおもて面中央には感温素子１０５が実装されており、感温素子１０５の信号は、ＦＰＣ１０４のおもて面上に形成または配置された信号線１５０を通じてＦＰＣ１０４の第１の端部となる端子部１０３に形成された端子１５１に出力される。信号線１５０は、感温素子１０５の電極と端子１５１をつなぐＦＰＣ１０４のおもて面上に配置された細くしなやかなワイヤー、あるいはＦＰＣ１０４に形成された銅箔パターンである。第１の端部となる端子部１０３に形成された端子１５１にリード線１０８を接続することにより、感温素子１０５の信号を外部に取出すことができる。端子１５１はリード線１０８と接続可能な金属部分であり、ＦＰＣ１０４のおもて面上に銅箔パターンで形成することも出来る。屈曲して組み込む場合、ＦＰＣ１０４の第１の端部となる端子部１０３が、固定部１０７に設けられた第１の支持部１７１に固定され、第１の帯状部１０１がたるみを持った状態で屈曲されて、幅広部１０２の第１および第２の方向における中心が弾性体１０６の中心と一致するように組み込まれる。端子部１０３の支持部１７１への固定は接着、あるいは熱カシメなどにより行われる。本実施形態では、感温素子１０５は温度に応じて抵抗値が変化するサーミスタであるとして説明を行うが、金属測温体、あるいは温度に応じた起電力を生じる熱電対でもよい。 (Embodiment 1)
FIG. 1 is a principle diagram of the temperature sensor of the present embodiment. The temperature sensor device 100 according to the present embodiment includes an FPC (Flexible Print Circuit) 104, a temperature sensitive element 105, an elastic body 106, a fixing portion 107, and a lead wire 108. Here, the temperature sensor 10 includes an FPC (Flexible Print Circuit) 104, a temperature sensitive element 105, and an elastic body 106. Since the FPC 104 is based on a flexible film such as a polyimide film, it can be bent and incorporated into the temperature sensor device 100 as shown in FIGS. Here, the shape in which the FPC 104 is extended is a shape as shown in FIG. 1C, and the first belt-like portion 101 extending in the first direction from the terminal portion 103 serving as the first end portion; In a second direction that is continuous with the first strip 101 and is orthogonal to the first direction, the wide portion 102 that is wider than the first strip 101 and the first strip 101 are sandwiched between them. The terminal portion 103 is a first end portion connected to the opposite side of the portion 102. The first strip 101 need only have a location where the width in the second direction is narrower than that of the wide portion 102, the narrow width may be the same width, and the width in the second direction of the wide portion 102 may be the same. There may be a plurality of narrow different widths. Here, the first direction refers to the direction in which the stretched direction when bent is bent when it is bent and incorporated. A temperature sensing element 105 is mounted at the center of the front surface in the first and second directions of the wide portion 102, and the signal of the temperature sensing element 105 is formed or arranged on the front surface of the FPC 104. The signal is output to the terminal 151 formed in the terminal portion 103 which is the first end portion of the FPC 104 through the signal line 150. The signal line 150 is a thin and flexible wire disposed on the front surface of the FPC 104 that connects the electrode of the temperature sensing element 105 and the terminal 151, or a copper foil pattern formed on the FPC 104. By connecting the lead wire 108 to the terminal 151 formed in the terminal portion 103 serving as the first end portion, the signal of the temperature sensing element 105 can be taken out. The terminal 151 is a metal portion that can be connected to the lead wire 108, and can be formed on the front surface of the FPC 104 with a copper foil pattern. When bent and assembled, the terminal portion 103 which is the first end portion of the FPC 104 is fixed to the first support portion 171 provided in the fixing portion 107, and the first belt-like portion 101 has a slack. It is bent and incorporated so that the centers in the first and second directions of the wide portion 102 coincide with the center of the elastic body 106. The terminal portion 103 is fixed to the support portion 171 by adhesion or heat caulking. In the present embodiment, the temperature sensing element 105 is described as a thermistor whose resistance value changes according to the temperature. However, a metal thermometer or a thermocouple that generates an electromotive force according to the temperature may be used.

図１（ｂ）に示すように、感温素子１０５を囲む弾性体１０６の底面はＦＰＣ１０４の幅広部１０２のおもて面に接しているので、弾性体１０６に接する固定部１０７が検知対象物表面１２０方向に押付けられると、第３の支持部１７３に接する弾性体１０６は圧縮されて弾性変形しその反発力によりＦＰＣ１０４の幅広部１０２の裏面を検知対象物表面１２０に押付ける。つまり、弾性体１０６の変形の反発力によりＦＰＣ１０４の裏面を検知対象物表面１２０に押付けるとともに弾性体１０６の底面がＦＰＣ１０４のおもて面と接することになる。従って、感温素子１０５が実装された幅広部１０２は、検知対象物表面１２０と密着性を保つことが出来る。ＦＰＣ１０４の裏面は検知対象物表面１２０に圧接して熱結合するので、その温度はＦＰＣ１０４に伝導する。ＦＰＣ１０４は厚さが１０〜５０μｍ程度の薄いフィルムであるので、ＦＰＣ１０４の裏面の熱はＦＰＣ１０４のおもて面に容易に伝導しさらに感温素子１０５に伝わる。従って、感温素子１０５は検知対象物表面１２０の温度に応じた信号を出力することになる。また、感温素子１０５は弾性体１０６によって囲まれているので、外部雰囲気温度の影響が低減された状態で検知対象物表面１２０の温度に応じた信号を出力することが可能となっている。 As shown in FIG. 1B, since the bottom surface of the elastic body 106 surrounding the temperature sensing element 105 is in contact with the front surface of the wide portion 102 of the FPC 104, the fixing portion 107 in contact with the elastic body 106 is the object to be detected. When pressed in the direction of the front surface 120, the elastic body 106 in contact with the third support portion 173 is compressed and elastically deformed, and the repulsive force presses the back surface of the wide portion 102 of the FPC 104 against the detection target surface 120. That is, the back surface of the FPC 104 is pressed against the detection target surface 120 by the repulsive force of the deformation of the elastic body 106, and the bottom surface of the elastic body 106 is in contact with the front surface of the FPC 104. Therefore, the wide portion 102 on which the temperature sensitive element 105 is mounted can maintain adhesion with the detection target object surface 120. Since the back surface of the FPC 104 is in pressure contact with the detection object surface 120 and thermally coupled, the temperature is conducted to the FPC 104. Since the FPC 104 is a thin film having a thickness of about 10 to 50 μm, the heat on the back surface of the FPC 104 is easily conducted to the front surface of the FPC 104 and further transmitted to the temperature sensing element 105. Therefore, the temperature sensing element 105 outputs a signal corresponding to the temperature of the detection target object surface 120. Further, since the temperature sensing element 105 is surrounded by the elastic body 106, it is possible to output a signal corresponding to the temperature of the detection target object surface 120 in a state where the influence of the external ambient temperature is reduced.

ここで、ＦＰＣ１０４の幅広部１０２の第１および第２の方向における中央部に感温素子１０５が位置するので、第１および第２の方向における中央部を確実に検知対象物表面１２０に押し当てる必要がある。そのためには弾性体１０６の底面の形状は、感温素子１０５を囲む底面の内周側から外周側へ向かう下に凸の凸面であることが望ましい。つまり、弾性体１０６の変形によって、弾性体１０６の底面は内周側からＦＰＣ１０４のおもて面に接し、最終的に外周側がＦＰＣ１０４のおもて面に接することが望ましい。こうすると弾性体１０６の底面の内周側が外周側より大きく圧縮されるのでＦＰＣ１０４の幅広部１０２の第１および第２の方向における中央部へ行くほど反発力が大きくなる。この弾性体１０６の底面が凸面でなく平面であると、外周側のエッジが検知対象物表面１２０に強く当たることになり、相対的に第１および第２の方向における中央部の検知対象物表面１２０との接触する当たりが弱まり、第１および第２の方向における中央部が検知対象物表面１２０から浮き上がる現象がおきる。そうなると、検知対象物表面１２０から感温素子１０５への熱伝導が不安定になる。また、弾性体１０６は変形して底面が広がっても幅広部１０２をはみ出さないことが望ましい。幅広部１０２をはみ出すと、弾性体１０６が直接、検知対象物表面１２０に接触するので、接触面積の異なりに起因して検知対象物表面１２０の温度に影響を与える。また、幅広部１０２周縁部の角が弾性体１０５に押さえつけられるので、検知対象物表面１２０に傷をつけるおそれもある。 Here, since the temperature-sensitive element 105 is positioned at the center portion in the first and second directions of the wide portion 102 of the FPC 104, the center portion in the first and second directions is reliably pressed against the detection target surface 120. There is a need. For this purpose, the shape of the bottom surface of the elastic body 106 is desirably a convex surface that protrudes downward from the inner peripheral side to the outer peripheral side of the bottom surface surrounding the temperature sensing element 105. In other words, it is desirable that the elastic body 106 is deformed so that the bottom surface of the elastic body 106 contacts the front surface of the FPC 104 from the inner peripheral side, and finally the outer peripheral side contacts the front surface of the FPC 104. As a result, the inner peripheral side of the bottom surface of the elastic body 106 is compressed more than the outer peripheral side, so that the repulsive force increases toward the center of the wide portion 102 of the FPC 104 in the first and second directions. If the bottom surface of the elastic body 106 is not a convex surface but a flat surface, the edge on the outer peripheral side strongly hits the detection target object surface 120, and the detection target object surface in the center in the first and second directions relatively. The contact with 120 is weakened, and the central part in the first and second directions rises from the detection object surface 120. As a result, heat conduction from the detection target object surface 120 to the temperature sensing element 105 becomes unstable. Further, it is desirable that the elastic body 106 does not protrude from the wide portion 102 even if the elastic body 106 is deformed and the bottom surface is expanded. When the wide portion 102 protrudes, the elastic body 106 directly contacts the detection target object surface 120, and thus affects the temperature of the detection target object surface 120 due to the difference in the contact area. Moreover, since the corner | angular part of the wide part 102 periphery is pressed down by the elastic body 105, there exists a possibility that the detection target object surface 120 may be damaged.

なお、幅広部１０２の第１および第２の方向における中央部に感熱素子１０５が実装されることが好ましく、第１および第２の方向における中央部を通る第１および第２の方向のそれぞれの直線に対して、幅広部１０２の外周線は線対称となることが好ましい。特に、幅広部１０２は円状であることが好ましい。同様に、弾性体１０６の底面の内周線および外周線は円状であることが好ましい。幅広部１０２、弾性体１０６の底面の内周線および外周線が円状であれば、ＦＰＣ１０４の熱分布は感熱素子１０５を中心に概ね等方的な熱分布となるため、測定精度を特に上げることが可能となる。 The thermal element 105 is preferably mounted at the center of the wide portion 102 in the first and second directions, and each of the first and second directions passing through the center in the first and second directions. It is preferable that the outer peripheral line of the wide portion 102 is line symmetric with respect to the straight line. In particular, the wide portion 102 is preferably circular. Similarly, the inner peripheral line and the outer peripheral line on the bottom surface of the elastic body 106 are preferably circular. If the inner circumferential line and the outer circumferential line on the bottom surface of the wide portion 102 and the elastic body 106 are circular, the heat distribution of the FPC 104 becomes a substantially isotropic thermal distribution centering on the thermal element 105, so that the measurement accuracy is particularly improved. It becomes possible.

（実施形態２）
実施形態２においては、図２に示すように、温度センサ装置２００では、ＦＰＣ１０４が幅広部１０２を挟んで第１の帯状部１０１に対向してもうひとつの第２の帯状部１４０をもつ。ここで、第２の帯状部１４０は、幅広部１０２より第２の方向における幅が狭い場所が存在すればよく、狭い幅が同一の幅であってもよく、幅広部１０２より第２の方向における幅が狭い異なる複数の幅が存在してもよい。ＦＰＣ１０４の使用面積は増えるが、幅広部１０２が両側から第１および第２の帯状部（１０１、１４０）により支持されるため、幅広部１０２の位置が安定する。ＦＰＣ１０４を伸展した状態を図２（ｃ）に示す。図２（ｃ）においては、幅広部１０２の両側にそれぞれ第１および第２の帯状部（１０１、１４０）が幅広部１０２を挟んで対向して延在する。第２の帯状部１４０の、幅広部１０２と反対側の端には、第２の端部となる係止部１４１があり、固定部１０７に設けられた第２の支持部１７２にＦＰＣ１０４の係止部１４１を係止（固定）する。図２（ｂ）に示すように、ＦＰＣ１０４は第２の端部となる係止部１４１において第２の支持部１７２に係止され、弾性体１０６の底面を通って、第１の端部となる端子部１０３が第１の支持部１７１に固定されるように第１および第２の帯状部（１０１、１４０）が屈曲されてたるみを持った状態で固定部１０７に組み込まれ、温度センサ装置２００として機能する。係止部１４１と第２の支持部１７２との係止および、端子部１０３の支持部１７１への固定は接着、あるいは熱カシメなどにより行われる。なお第１の支持部１７１と第２の支持部１７２は一致していても良い。この場合、第１の端部となる端子部１０３と第２の端部となる係止部１４１は同じ位置で固定される。なお、固定部１０７に第１の支持部１７１および第２の支持部１７２が存在するとして説明したが、固定部が２個存在するものであってもよく、第１の支持部１７１および第２の支持部１７２がそれぞれ別個の固定部（図示せず）に存在してもよい。 (Embodiment 2)
In the second embodiment, as shown in FIG. 2, in the temperature sensor device 200, the FPC 104 has another second strip 140 that faces the first strip 101 across the wide portion 102. Here, it is sufficient that the second belt-shaped portion 140 has a place where the width in the second direction is narrower than that of the wide portion 102, the narrow width may be the same width, and the second direction from the wide portion 102. There may be a plurality of different widths with a narrow width. Although the use area of the FPC 104 increases, the wide portion 102 is supported by the first and second belt-like portions (101, 140) from both sides, so that the position of the wide portion 102 is stabilized. A state where the FPC 104 is extended is shown in FIG. In FIG. 2C, the first and second strips (101, 140) extend opposite to each other on both sides of the wide portion 102 with the wide portion 102 interposed therebetween. At the end of the second strip 140 opposite to the wide portion 102, there is a locking portion 141 serving as a second end, and the FPC 104 is engaged with the second support portion 172 provided on the fixed portion 107. The stop 141 is locked (fixed). As shown in FIG. 2B, the FPC 104 is locked to the second support portion 172 at the locking portion 141 serving as the second end portion, passes through the bottom surface of the elastic body 106, and the first end portion. The first and second belt-like portions (101, 140) are bent and have a slack so that the terminal portion 103 to be fixed to the first support portion 171 is incorporated in the fixing portion 107, and the temperature sensor device It functions as 200. The locking of the locking portion 141 and the second support portion 172 and the fixing of the terminal portion 103 to the support portion 171 are performed by adhesion or heat caulking. In addition, the 1st support part 171 and the 2nd support part 172 may correspond. In this case, the terminal portion 103 serving as the first end portion and the locking portion 141 serving as the second end portion are fixed at the same position. In addition, although it demonstrated as the 1st support part 171 and the 2nd support part 172 exist in the fixing | fixed part 107, two fixing | fixed parts may exist, and the 1st support part 171 and the 2nd support part 172 may exist. The support portions 172 may be provided in separate fixing portions (not shown).

（実施形態３）
図３は、本温度センサ装置２００を、ケース３００に内蔵された検知対象物３０１の温度検出において適用した例である。ここで、検知対象物３０１はバッテリ、集積回路などの発熱を伴う電子部品あるいは電気機器などが挙げられるが、その形態は特に問われるものではない。温度センサ装置２００の固定部１０７はケース３００の壁に開けられた穴３０４に挿入されて固定される。第３の支持部１７３は、固定部１０７に設けられ、弾性体１０６の上部を支持するので、ＦＰＣ１０４の幅広部１０２は弾性体１０６が僅かに変形する程度の反発力を受け、検知対象物３０１の検知対象物表面１２０に軽く押付けられる。弾性体１０６の底面は、内周側から外周側へ向かう下に凸の凸面であるため、弾性体１０６の反発力はＦＰＣ１０４の幅広部１０２の第１および第２の方向における中央部が一番強く、周辺（外周側）に向かって軽減する。従って、検知対象物３０１の検知対象物表面１２０の位置が微小に変動しても、弾性体１０６の変形が保たれている限りは、その反発力により、幅広部１０２の第１および第２の方向における中央部と検出対象物３０１の検知対象物表面１２０とは安定した密着状態が保たれる。検知対象物３０１の検知対象物表面１２０の微小な変動とは、垂直方向（幅広部１０２の垂線方向）においては、固定部１０７が固定されたケース３００の壁に開けられた穴３０４を有する壁面と検知対象物３０１の検知対象物表面１２０との距離の変動であり、検知対象物３０１とケース３００との取付位置公差などの静的なばらつきのほか、検知対象物３０１の温度による膨張、ケース３００に振動が加わった場合のケース３００と検知対象物３０１との相対的位置関係の変動などの動的変動などがある。これらの変動に応じて弾性体１０６が変形して幅広部１０２と検知対象物３０１の検知対象物表面１２０との密着状態を保つ。ＦＰＣ１０４の第１および第２の帯状部（１０１、１４０）は、たるみを持っており、固定部１０７から検知対象物３０１の検知対象物表面１２０までの垂直距離の変化に応じて屈曲する。また、これら第１および第２の帯状部（１０１、１４０）は、第２の方向における幅が狭いため、検知対象物３０１の検知対象物表面１２０の表面に沿った方向（水平方向）の変位に対しても、第１および第２の帯状部（１０１、１４０）がねじれを伴い変位するので、幅広部１０２を屈曲させることなく、検知対象物３０１の検知対象物表面１２０の水平方向の変位に応じてしなやかに屈曲する。つまり、第１および第２の帯状部（１０１、１４０）のみがねじれを伴い変位し、幅広部１０２は第１および第２の帯状部（１０１、１４０）のねじれを伴う変位の影響が低減された状態で検知対象物３０１の検知対象物表面１２０への密着状態を保つことになる。なお、弾性体１０６は垂直方向の変形だけでなく、底部の水平方向の移動に応じてずれて変形することも可能である。弾性体１０６が水平方向にも変形可能であり、かつ第１および第２の帯状部（１０１、１４０）がたるみを持つため、検知対象物３０１の水平方向の微小な移動に対し、検知対象物３０１の検知対象物表面１２０に幅広部１０２が密着したまま一緒に移動することが出来る。つまり、幅広部１０２は検知対象３００の垂直方向の微小変位にも水平方向の微小変位にも検知対象物３０１の検知対象物表面１２０に密着性を保つことが出来る。例えば、ケース３００に入れられた検知対象物３０１であるバッテリを車載した場合、車両の振動によりこの様な微小変位が起きるが、本実施形態によれば、検知対象物３０１の検知対象物表面１２０であるバッテリの表面の温度を安定して検出することが出来る。なお、実施形態１に示す幅広部１０２と第１の帯状部１０１が連なる構成であっても、同様な効果を得ることが可能である。 (Embodiment 3)
FIG. 3 is an example in which the present temperature sensor device 200 is applied in temperature detection of the detection target 301 built in the case 300. Here, the detection target 301 may be an electronic component or an electric device that generates heat such as a battery or an integrated circuit, but the form is not particularly limited. The fixing part 107 of the temperature sensor device 200 is inserted and fixed in a hole 304 formed in the wall of the case 300. Since the third support portion 173 is provided on the fixed portion 107 and supports the upper portion of the elastic body 106, the wide portion 102 of the FPC 104 receives a repulsive force that slightly deforms the elastic body 106, and the detection target 301 Are lightly pressed against the surface 120 of the object to be detected. Since the bottom surface of the elastic body 106 is a convex surface that protrudes downward from the inner peripheral side toward the outer peripheral side, the repulsive force of the elastic body 106 is most at the center in the first and second directions of the wide portion 102 of the FPC 104. Strongly reduced toward the periphery (outside). Therefore, even if the position of the detection target surface 120 of the detection target 301 fluctuates slightly, as long as the deformation of the elastic body 106 is maintained, the repulsive force causes the first and second of the wide portion 102. A stable contact state is maintained between the central portion in the direction and the detection target surface 120 of the detection target 301. In the vertical direction (perpendicular direction of the wide portion 102), the minute fluctuation of the detection target surface 120 of the detection target 301 is a wall surface having a hole 304 formed in the wall of the case 300 to which the fixing portion 107 is fixed. Variation of the distance between the detection object 301 and the detection object surface 120, in addition to static variation such as a mounting position tolerance between the detection object 301 and the case 300, expansion due to the temperature of the detection object 301, and the case There are dynamic fluctuations such as fluctuations in the relative positional relationship between the case 300 and the detection object 301 when vibration is applied to 300. In accordance with these fluctuations, the elastic body 106 is deformed to keep the wide portion 102 and the detection target object surface 120 of the detection target object 301 in close contact. The first and second strips (101, 140) of the FPC 104 have a slack and bend according to a change in the vertical distance from the fixing unit 107 to the detection target surface 120 of the detection target 301. Further, since the first and second strips (101, 140) are narrow in the second direction, the displacement of the detection target 301 in the direction along the surface of the detection target surface 120 (horizontal direction). However, since the first and second belt-like portions (101, 140) are displaced with twisting, the horizontal displacement of the detection target surface 120 of the detection target 301 without bending the wide portion 102. Bends flexibly according to. That is, only the first and second belt-like portions (101, 140) are displaced with twisting, and the wide portion 102 is less affected by the displacement with twisting of the first and second belt-like portions (101, 140). In this state, the contact state of the detection target 301 to the detection target surface 120 is maintained. Note that the elastic body 106 can be deformed not only in the vertical direction but also shifted in accordance with the horizontal movement of the bottom. Since the elastic body 106 can be deformed also in the horizontal direction and the first and second strips (101, 140) have slack, the detection target object can be detected against a slight movement of the detection target object 301 in the horizontal direction. The wide portion 102 can be moved together with the surface 120 of the detection object 301 in close contact. That is, the wide portion 102 can maintain adhesion to the detection target surface 120 of the detection target 301 regardless of the vertical displacement or the horizontal displacement of the detection target 300. For example, when a battery that is the detection target 301 placed in the case 300 is mounted on a vehicle, such a minute displacement occurs due to the vibration of the vehicle. According to the present embodiment, the detection target surface 120 of the detection target 301 is used. It is possible to stably detect the temperature of the surface of the battery. Even if the wide portion 102 and the first belt-like portion 101 shown in the first embodiment are connected, the same effect can be obtained.

また、検知対象物３０１の検知対象物表面１２０の温度を正確に検知するには、それ以外の周囲の温度の影響を受けにくくする必要がある。感熱素子１０５を囲む弾性体１０６は一部がケース３００外部に露出し、一部がケース３００内に存在するので、ケース３００の外部および内部の雰囲気（３０２、３０３）の影響を受ける。ここで、一般的に感温素子１０５を囲む弾性体１０６はゴムなどの材質であるので断熱性が高いので、ケース３００外部の雰囲気３０３やケース３００内部の雰囲気３０２の温度を感熱素子１０５に伝わりにくくする。このように、感熱素子１０５は薄いＦＰＣ１０４を通じて検出対象物３０１の検知対象物表面１２０と強く熱結合する一方、外部および内部の雰囲気（３０２、３０３）の温度の影響が低減された状態で検知対象物３０１の検知対象物表面１２０の温度を正確に検知できる。 Further, in order to accurately detect the temperature of the detection target object surface 120 of the detection target 301, it is necessary to make it less susceptible to the surrounding temperature. A part of the elastic body 106 surrounding the thermal element 105 is exposed to the outside of the case 300 and a part of the elastic body 106 exists in the case 300, so that it is affected by the atmosphere (302, 303) outside and inside the case 300. Here, since the elastic body 106 that generally surrounds the temperature sensing element 105 is made of a material such as rubber, it has high heat insulation properties. Therefore, the temperature of the atmosphere 303 outside the case 300 and the atmosphere 302 inside the case 300 is transmitted to the heat sensing element 105. Make it harder. As described above, the thermal element 105 is strongly thermally coupled to the detection target surface 120 of the detection target 301 through the thin FPC 104, while the influence of the temperature of the external and internal atmospheres (302, 303) is reduced. The temperature of the detection target object surface 120 of the object 301 can be accurately detected.

（実施形態４）
図４に示すように、実施形態４においては、温度センサ装置４００では、幅広部１０２と弾性体１０６との間に、感温素子１０５と弾性体１０６との接触を避けるための空間４０１が設けられている。空間４０１のような狭い空間に閉じ込められた空気は対流や気流が起こりにくいため極めて断熱性が高く、ゴムなどの弾性体１０６よりも更に断熱性が高い。従って、より外部および内部の雰囲気（３０２、３０３）の温度の影響を受けにくくなり、感温素子１０５の検知温度の精度が向上する。また、弾性体１０６が感温素子１０５に接していると、感温素子１０５の応答性は弾性体１０６の熱応答性に近いものとなる。弾性体１０６は感温素子１０５よりもはるかに熱容量が大きいので感温素子１０５単独よりも熱応答が遅い。例えば、検知対象物表面１２０の温度が上昇した場合、その熱が弾性体１０６に伝わって弾性体１０６の温度が安定するまで感温素子１０５の温度も安定しない。その後、検知対象物表面１２０の温度が下がっても、弾性体１０６が放熱してゆっくり温度が下がるのに合わせて感温素子１０５の温度もさがる。これに対し、空間４０１があると、弾性体１０６の温度変化に殆ど関係なく、熱容量の小さいＦＰＣ１０４の幅広部１０２の中央部および感温素子１０５の温度変化で応答性が決まる。このように、感温素子１０５の周囲に小さな空間４０１を設けて弾性体１０６との熱結合を遮断すると、検知精度が向上するとともに、応答性の上でも好ましい。 (Embodiment 4)
As shown in FIG. 4, in the fourth embodiment, in the temperature sensor device 400, a space 401 for avoiding contact between the temperature sensing element 105 and the elastic body 106 is provided between the wide portion 102 and the elastic body 106. It has been. Since air confined in a narrow space such as the space 401 is less likely to cause convection or airflow, it has extremely high heat insulating properties, and has higher heat insulating properties than an elastic body 106 such as rubber. Accordingly, the temperature of the atmosphere (302, 303) outside and inside is less affected by the temperature, and the accuracy of the temperature detected by the temperature sensing element 105 is improved. When the elastic body 106 is in contact with the temperature sensing element 105, the response of the temperature sensing element 105 is close to the thermal response of the elastic body 106. Since the elastic body 106 has a much larger heat capacity than the temperature sensing element 105, the thermal response is slower than the temperature sensing element 105 alone. For example, when the temperature of the detection object surface 120 rises, the temperature of the temperature sensing element 105 is not stabilized until the heat is transferred to the elastic body 106 and the temperature of the elastic body 106 is stabilized. Thereafter, even if the temperature of the detection object surface 120 decreases, the temperature of the temperature sensing element 105 decreases as the elastic body 106 dissipates heat and the temperature decreases slowly. On the other hand, when there is the space 401, the responsiveness is determined by the temperature change of the center portion of the wide portion 102 of the FPC 104 and the temperature sensing element 105 having a small heat capacity, regardless of the temperature change of the elastic body 106. As described above, it is preferable to provide a small space 401 around the temperature sensing element 105 to block the thermal coupling with the elastic body 106 in order to improve detection accuracy and responsiveness.

また、第１および第２の帯状部（１０１、１４０）は幅広部１０２より第２の方向における幅が狭いので、幅広部１０２から第１および第２の帯状部（１０１、１４０）への熱放出あるいは第１および第２の帯状部（１０１、１４０）から幅広部１０２への熱流入を低減することも可能となっている。従って、感温素子１０５検知精度が向上するとともに、応答性の上でも好ましい。なお、実施形態１に示す幅広部１０２と第１の帯状部１０１が連なる構成であっても、同様な効果を得ることが可能である。 In addition, since the first and second strip portions (101, 140) are narrower in the second direction than the wide portion 102, heat from the wide portion 102 to the first and second strip portions (101, 140). It is also possible to reduce discharge or heat inflow from the first and second strips (101, 140) to the wide portion 102. Therefore, the detection accuracy of the temperature sensitive element 105 is improved and it is preferable in terms of responsiveness. Even if the wide portion 102 and the first belt-like portion 101 shown in the first embodiment are connected, the same effect can be obtained.

（実施形態５）
図５に示すように、実施形態５においては、温度センサ装置５００では、実施形態４とは異なり感熱素子１０５周囲に空間を設ける代わりに、発泡性樹脂５０１で感温素子１０５の底面を除いて被覆し、発泡性樹脂５０１が弾性体１０６に接している。発泡性樹脂５０１は多数の気泡を有しており、多数の気泡の中に空気を蓄えている。しかも気泡一つ一つに空気が分断されて移動しにくいので、単なる空間よりさらに対流が起こりにくいため、より高い断熱性が実現できる。あるいは、弾性体の一部を変性させ、弾性体１０６と感熱素子１０５が接する面または弾性体１０６の底面であって感温素子１０５周辺のみが細かい気泡が分布する構造で有ってもよい。また、信号線１５０と対向する領域に細かい気泡が分布する構造とすることで、信号線１５０を弾性体１０６からの熱的影響を受けにくくする点で望ましい。また、弾性体１０６全体が発泡性樹脂５０１であっても同様な効果が得られる。 (Embodiment 5)
As shown in FIG. 5, in the fifth embodiment, unlike the fourth embodiment, in the temperature sensor device 500, instead of providing a space around the thermal element 105, the bottom surface of the thermal element 105 is removed with a foamable resin 501. The foamable resin 501 is in contact with the elastic body 106. The foamable resin 501 has a large number of bubbles, and air is stored in the large number of bubbles. In addition, since the air is divided into individual bubbles and hardly moves, convection is less likely to occur than in a simple space, and thus higher heat insulation can be realized. Alternatively, a part of the elastic body may be modified to have a structure in which fine bubbles are distributed only on the surface where the elastic body 106 and the thermal element 105 are in contact with each other or on the bottom surface of the elastic body 106 and around the temperature sensitive element 105. In addition, the structure in which fine bubbles are distributed in a region facing the signal line 150 is desirable in that the signal line 150 is less susceptible to thermal influence from the elastic body 106. The same effect can be obtained even if the entire elastic body 106 is the foamable resin 501.

（実施形態６）
図６は、信号線１５０や端子１５１を銅箔（１１１、１１２）で形成した例である。幅広部１０２のおもて面の第１および第２の方向における中央部には感温素子１０５が実装されており、感温素子１０５の両端の電極はＦＰＣ１０４のおもて面上に形成されたランドパターン１１０とハンダリフロー（図示せず）などで接合されるので、感温素子１０５の信号はＦＰＣ１０４に形成された信号用銅箔パターン１１１を通じてＦＰＣ１０４に形成された端子銅箔パターン１１２に出力される。端子銅箔パターン１１２にリード線１０８を接続することにより、感温素子１０５の信号を外部に取出すことができる。 (Embodiment 6)
FIG. 6 shows an example in which the signal line 150 and the terminal 151 are formed of copper foil (111, 112). A temperature sensing element 105 is mounted at the center of the front surface of the wide portion 102 in the first and second directions, and electrodes at both ends of the temperature sensing element 105 are formed on the front surface of the FPC 104. Since the land pattern 110 is bonded to the land pattern 110 by solder reflow (not shown), the signal of the temperature sensing element 105 is output to the terminal copper foil pattern 112 formed on the FPC 104 through the signal copper foil pattern 111 formed on the FPC 104. Is done. By connecting the lead wire 108 to the terminal copper foil pattern 112, the signal of the temperature sensitive element 105 can be taken out to the outside.

（実施形態７）
さらに、図７に示すように、ＦＰＣ１０４に形成された信号用銅箔パターン１１１に工夫を加えることにより、検出精度の性能を向上させる方法について述べる。先の図６では、感温素子１０５周辺においてＦＰＣ１０４に形成された信号用銅箔パターン１１１を直近のＦＰＣ１０４のおもて面上に形成されたランドパターン１１０に最短距離（直線）でつなげている。ＦＰＣ１０４に形成された信号用銅箔パターン１１１を第１の帯状部１０１の区間６０１と幅広部１０２の区間６０２に分けて考えると、図６において図７の区間６０２に相当する区間はランドパターン１１０近傍を除き直線的であり最短の距離となっている。電気的な接続だけを考えればそれでよいが、熱的性質を考慮してこの部分を長くする工夫について説明する。感温素子１０５は幅広部１０２の第１および第２の方向における中央部にあり検知対象物表面１２０の温度ともっとも近くなる位置にあるが、端子銅箔パターン１１２には外部に繋がるリード線１０８が接続されるので、第１の帯状部１０１分の信号用銅箔パターン６０１を通じて外部への熱の移動が起きる。つまり外部の雰囲気温度の影響は端子銅箔パターン１１２から信号用銅箔パターン（６０１、６０２）を通じて感温素子１０５の温度に影響を与えることになる。ここで、信号用銅箔パターン（６０１、６０２）の熱抵抗を上げて熱の移動を抑えるとこの影響を軽減できるが、とくに検知対象物表面１２０の温度から近い部分の熱抵抗を上げることが望ましい。信号用銅箔パターンの区間６０２の部分は幅広部１０２から第１の帯状部１０１に連なる部分であるので、図７に示すようにこの区間を蛇行させることにより熱伝導経路を長くすることが出来る。たとえば、信号用銅箔パターン６０２を最短距離で接続した場合に比べて、２倍以上の長さにすることができる。つまり、この区間６０２の熱抵抗が大きくなり外部との熱の移動が幅広部１０２中心部周辺で抑えられるため感熱素子１０５近傍の熱の移動が低減されるので、温度センサ装置（１００、２００、４００、５００）の感度を大きくできる。 (Embodiment 7)
Furthermore, as shown in FIG. 7, a method for improving the detection accuracy performance by devising the signal copper foil pattern 111 formed on the FPC 104 will be described. In FIG. 6, the signal copper foil pattern 111 formed on the FPC 104 around the temperature sensing element 105 is connected to the land pattern 110 formed on the front surface of the nearest FPC 104 at the shortest distance (straight line). . When the signal copper foil pattern 111 formed on the FPC 104 is divided into the section 601 of the first strip 101 and the section 602 of the wide section 102, the section corresponding to the section 602 in FIG. Except for the vicinity, it is straight and has the shortest distance. Although it is sufficient if only the electrical connection is considered, a device for lengthening this portion in consideration of thermal properties will be described. The temperature sensing element 105 is located at the center of the wide portion 102 in the first and second directions and is closest to the temperature of the surface 120 of the object to be detected, but the lead wire 108 connected to the outside is connected to the terminal copper foil pattern 112. Therefore, heat is transferred to the outside through the signal copper foil pattern 601 corresponding to the first strip 101. That is, the influence of the external ambient temperature affects the temperature of the temperature sensing element 105 from the terminal copper foil pattern 112 through the signal copper foil patterns (601, 602). Here, if the heat resistance of the signal copper foil patterns (601, 602) is increased to suppress the movement of heat, this influence can be reduced, but in particular, the heat resistance of the portion near the temperature of the detection object surface 120 can be increased. desirable. Since the section 602 of the signal copper foil pattern is a section that continues from the wide section 102 to the first strip section 101, the heat conduction path can be lengthened by meandering the section as shown in FIG. . For example, the signal copper foil pattern 602 can be made twice or more longer than the case where the signal copper foil patterns 602 are connected at the shortest distance. That is, since the heat resistance of the section 602 increases and heat transfer to the outside is suppressed around the center of the wide portion 102, heat transfer near the thermal element 105 is reduced, so that the temperature sensor device (100, 200, 400, 500) can be increased.

（実施形態８）
次に、幅広部１０２の第１および第２の方向における中央部で、より熱抵抗を上げる工夫について述べる。図８（ａ）（ｂ）（ｃ）に示すように、信号用銅箔パターン１１１を感温素子１０５周辺において折り返すあるいは渦巻状にするなどして引き回す信号用銅箔パタンの引回し部８０２を設けると、最短の場合（直線）の倍以上の長さとすることが出来る。つまり電気的な伝導に必要な長さの倍以上にして熱的な伝導条件を有利にする工夫ができる。熱分布が高温となる感温素子１０５周辺領域において信号用銅箔パターン１１１の長さが増加するので、その領域では信号用銅箔パターン１１１が熱を受け、その熱が感熱素子１０５の電極を通じて感熱素子１０５に伝達する。また、感温素子１０５から端子銅箔パターン１１２を通じて外部に流出する熱経路の総合長も増加するため、この経路の熱抵抗が増加し、外部へ流出する熱量を減少させることが出来る。この様な効果により感温素子１０５の温度の低下を低減することが出来、温度センサ装置（１００、２００、４００、５００）の感度を向上する。この様な効果を生むために、図８（ａ）においては、感温素子１０５周辺の信号用銅箔パターン１１１を半円弧状に折り返して信号用銅箔パターンの引回し部８０２としている。ここで、信号用銅箔パターンの引回し部８０２の最外周部は、幅広部１０２の中心を中心として同心円状となっていることが好ましい。信号用銅箔パターンの引回し部８０２最外周部が同心円状となっているので、感熱素子１０５近傍の熱量が概ね等方的に均等に移動することになるので、検出バラツキを低減できることになる。 (Embodiment 8)
Next, a device for further increasing the thermal resistance at the central portion of the wide portion 102 in the first and second directions will be described. As shown in FIGS. 8A, 8B, and 8C, a routing portion 802 of the signaling copper foil pattern for routing the signaling copper foil pattern 111 around the temperature sensing element 105 or by winding it around the temperature sensing element 105 is provided. When provided, the length can be more than double the shortest case (straight line). In other words, it is possible to devise an advantageous thermal conduction condition by making it more than twice the length necessary for electrical conduction. Since the length of the signal copper foil pattern 111 increases in the region around the temperature sensitive element 105 where the heat distribution becomes high, the signal copper foil pattern 111 receives heat in that region, and the heat passes through the electrode of the heat sensitive element 105. This is transmitted to the thermal element 105. Further, since the total length of the heat path flowing out from the temperature sensing element 105 through the terminal copper foil pattern 112 is increased, the thermal resistance of this path is increased, and the amount of heat flowing out can be reduced. By such an effect, the temperature drop of the temperature sensing element 105 can be reduced, and the sensitivity of the temperature sensor device (100, 200, 400, 500) is improved. In order to produce such an effect, in FIG. 8A, the signal copper foil pattern 111 around the temperature sensing element 105 is folded back into a semicircular arc shape to form a signal copper foil pattern lead-out portion 802. Here, the outermost peripheral portion of the routing portion 802 of the signal copper foil pattern is preferably concentric with the center of the wide portion 102 as the center. Since the outermost peripheral portion of the routing portion 802 of the signal copper foil pattern is concentric, the amount of heat in the vicinity of the thermal element 105 moves substantially isotropically, so that detection variation can be reduced. .

図８（ｂ）は、半円形の信号用銅箔パターン１１１の半円弧状の折り返しを更に増やし信号用銅箔パターンの引回し部８０２としたもので、さらに熱流出経路の熱抵抗を上げることが出来る。 FIG. 8B shows a case where the semicircular folding of the semicircular signal copper foil pattern 111 is further increased to form a routing portion 802 of the signal copper foil pattern, which further increases the thermal resistance of the heat outflow path. I can do it.

また、図８（ｃ）のように、感温素子１０５周辺において、渦巻状の信号用銅箔パターン１１１を信号用銅箔パターンの引回し部８０２として設けても良い。 Further, as shown in FIG. 8C, a spiral signal copper foil pattern 111 may be provided around the temperature sensitive element 105 as the signal copper foil pattern routing portion 802.

（実施形態９）
信号用銅箔パターン１１１を熱的に引き回す工夫だけでなく、集熱用銅箔パターン８００を設ける実施形態について、説明する。実施形態９においては、図９に示すように、感温素子１０５周囲の近傍領域に半円形の面状に広がる集熱用銅箔パターン８００を有する。集熱用銅箔パターン８００は熱伝導性のよい銅箔であり、またランドパターン１１０を兼ねているため、感熱素子１０５周辺の熱を集め感温素子１０５に伝導する働きをする。また、集熱用銅箔パターン８００の最外周部が同心円状となっているので、感熱素子１０５近傍の熱量が概ね等方的に均等に感熱素子１０５に移動することになるので、検出バラツキを低減できることになる。また、信号用銅箔パターン１１１も感温素子１０５周辺においては、集熱用銅箔パターン８００の周囲を引き出し側（端子銅箔パターン１１２の方向）とは逆側にまで回りこんで信号用銅箔パターンの引回し部８０２として、熱流出経路の長さを稼ぎ、熱抵抗を大きくしている。このように、集熱用銅箔パターン８００と信号用銅箔パターンの引回し部８０２を併用することで、感温素子１０５の温度を高く保ち、温度センサ装置（１００、２００、４００、５００）の感度を高く保つ。 (Embodiment 9)
An embodiment in which not only a device for thermally routing the signal copper foil pattern 111 but also a heat collecting copper foil pattern 800 will be described. In the ninth embodiment, as shown in FIG. 9, a heat collecting copper foil pattern 800 spreading in a semicircular surface shape is provided in the vicinity of the temperature sensitive element 105. The heat-collecting copper foil pattern 800 is a copper foil having good thermal conductivity and also serves as the land pattern 110, and therefore functions to collect heat around the thermal element 105 and conduct it to the temperature-sensitive element 105. Further, since the outermost peripheral portion of the heat collecting copper foil pattern 800 is concentric, the amount of heat in the vicinity of the thermal element 105 moves to the thermal element 105 approximately isotropically. It can be reduced. Further, the signal copper foil pattern 111 also surrounds the heat-collecting copper foil pattern 800 around the temperature sensing element 105 to the side opposite to the lead-out side (direction of the terminal copper foil pattern 112). As the foil pattern routing portion 802, the length of the heat outflow path is increased and the thermal resistance is increased. In this way, by using the heat collecting copper foil pattern 800 and the signal copper foil pattern routing portion 802 in combination, the temperature of the temperature sensing element 105 is kept high, and the temperature sensor device (100, 200, 400, 500). Keep the sensitivity high.

（実施形態１０）
集熱用銅箔パターンは面的な広がりではなく、放射状の線的な広がりであってよい。図１０において、ランドパターン１１０から放射状に集熱用銅箔パターン９００が伸びている。集熱用銅箔パターン９００は放射状であるので、感温素子１０５周辺の熱を短距離で感温素子１０５に伝える。少ない熱抵抗で感温素子１０５周辺の熱を感温素子１０５に伝え、かつ線状であるため面的に広がるよりも熱容量が少ないため、温度センサ装置（１００、２００、４００、５００）の感度の向上に貢献するとともに、応答性の上でも好ましい。集熱用銅箔パターン９００の先端の一対であるランドパターン１１０に接続される銅箔パターン９０１は、信号用銅箔パターン１１１に連結するので、感温素子１０５の出力が端子銅箔パターン１１２に出力される。 (Embodiment 10)
The heat-collecting copper foil pattern may be a radial linear spread instead of a planar spread. In FIG. 10, heat-collecting copper foil patterns 900 extend radially from the land pattern 110. Since the heat collecting copper foil pattern 900 is radial, the heat around the temperature sensing element 105 is transmitted to the temperature sensing element 105 over a short distance. Since the heat around the temperature sensing element 105 is transmitted to the temperature sensing element 105 with a small heat resistance and is linear, the heat capacity is less than the surface spread, and therefore the sensitivity of the temperature sensor device (100, 200, 400, 500). It is preferable in terms of responsiveness. Since the copper foil pattern 901 connected to the land pattern 110 which is a pair of tips at the tip of the heat collecting copper foil pattern 900 is connected to the signal copper foil pattern 111, the output of the temperature sensing element 105 is connected to the terminal copper foil pattern 112. Is output.

（実施形態１１）
放射状に広がる集熱用銅箔パターンは、枝分れするものであっても良い。図１１に示す集熱用銅箔パターンは、ランドパターン１１０から発する太い幹部から細い枝部が枝分れしている。枝分れした集熱用銅箔パターン１１０１により、感温素子１０５近傍領域をきめ細かく覆う、つまり集熱する面積が増える。しかし、枝は先端に行くに従って細くなるため、集熱用銅箔パターン全体の熱容量の増加は抑えられる。従って、温度センサ装置（１００、２００、４００、５００）の感度の向上に貢献するとともに、応答性の上でも好ましい。 (Embodiment 11)
The heat collecting copper foil pattern that spreads radially may be branched. In the heat-collecting copper foil pattern shown in FIG. 11, a thin branch portion is branched from a thick trunk portion originating from the land pattern 110. The branched heat collecting copper foil pattern 1101 finely covers a region near the temperature sensing element 105, that is, an area for collecting heat increases. However, since the branches become thinner toward the tip, an increase in the heat capacity of the entire heat collecting copper foil pattern can be suppressed. Therefore, it contributes to the improvement of the sensitivity of the temperature sensor device (100, 200, 400, 500) and is preferable in terms of responsiveness.

（実施形態１２）
これまでは、ＦＰＣ１０４のおもて面のランドパターン１１０、信号用銅箔パターン１１１について説明してきたが、ランドパターン１１０、信号用銅箔パターン１１１とは異なる銅箔パターンがＦＰＣ１０４の裏面にあってもよい。図１２（ａ）はＦＰＣ１０４のおもて面であり実施形態８の図８（ｂ）と同じ銅箔パターンつまり、ランドパターン１１０、信号用銅箔パターン１１１を持つが、図１２（ｂ）はＦＰＣ１０４の裏面であり、感温素子１０５の周辺近傍に対応する領域に接触用銅箔パターン１１００を持つ。熱伝導性の良い銅箔が検知対象物表面１２０に接触するため検知対象物表面１２０の熱がまず接触用銅箔パターン１１００に伝導する。接触用銅箔パターン１１００はＦＰＣ１０４と密接に熱結合しているため、接触用銅箔パターン１１００の熱は効率よくＦＰＣ１０４に伝えられる。ＦＰＣ１０４は薄いのでその熱はおもて面の銅箔に伝わり、感温素子１０５に至る。なお、接触用銅箔パターン１１００の熱量をバラツキなく伝熱するためには接触用銅箔パターン１１００の最外周部は、信号用銅箔パターンの引回し部８０２、集熱用銅箔パターン（８００、９００、１１０１）の最外周部より大きく形成されることが好ましい。また、接触用銅箔パターン１１００の熱量のロスを低減して伝熱するためには接触用銅箔パターン１１００直上のＦＰＣ１０４は弾性体１０６と接触しないことが好ましい。図１２では、おもて面の銅箔パターンつまり、ランドパターン１１０、信号用銅箔パターン１１１は実施形態８の図８（ｂ）と同じものであるが、それ以外の銅箔パターン、例えば実施形態６、７、８の図８（ａ）（ｃ）、９、１０、１１のようなものであっても良い。 Embodiment 12
So far, the land pattern 110 and the signal copper foil pattern 111 on the front surface of the FPC 104 have been described. However, a copper foil pattern different from the land pattern 110 and the signal copper foil pattern 111 exists on the back surface of the FPC 104. Also good. FIG. 12A shows the front surface of the FPC 104, which has the same copper foil pattern as that of FIG. 8B of the eighth embodiment, that is, the land pattern 110 and the signal copper foil pattern 111. FIG. A contact copper foil pattern 1100 is provided on the back surface of the FPC 104 and in a region corresponding to the vicinity of the periphery of the temperature sensitive element 105. Since the copper foil having good thermal conductivity comes into contact with the detection object surface 120, the heat of the detection object surface 120 is first conducted to the contact copper foil pattern 1100. Since the contact copper foil pattern 1100 is in close thermal contact with the FPC 104, the heat of the contact copper foil pattern 1100 is efficiently transferred to the FPC 104. Since the FPC 104 is thin, the heat is transferred to the copper foil on the front surface and reaches the temperature sensitive element 105. In order to transfer the heat quantity of the contact copper foil pattern 1100 without variation, the outermost peripheral portion of the contact copper foil pattern 1100 includes a lead portion 802 of the signal copper foil pattern, a copper foil pattern for heat collection (800 , 900, 1101) is preferably formed larger than the outermost peripheral portion. In order to reduce heat loss of the contact copper foil pattern 1100 and transfer heat, it is preferable that the FPC 104 immediately above the contact copper foil pattern 1100 does not contact the elastic body 106. In FIG. 12, the copper foil pattern on the front surface, that is, the land pattern 110 and the signal copper foil pattern 111 are the same as those in FIG. 8B of the eighth embodiment. 8 (a), (c), 9, 10, and 11 in the sixth, seventh, and eighth aspects may be used.

（実施形態１３）
以上、銅箔パターンの熱的性質を利用する工夫について説明してきたが、信号用銅箔パターン１１１、信号用銅箔パターンの引回し部８０２、集熱用銅箔パターン（８００、９００、１１０１）が形成されたＦＰＣ１０４は、検知対象物表面１２０に接する以外には、他のものと接しないことが望ましい。他のものと接するとその温度の影響を受けるからである。これまで説明してきたように、信号用銅箔パターン１１１、信号用銅箔パターンの引回し部８０２、集熱用銅箔パターン（８００、９００、１１０１）に熱的な工夫をしても、他のものからの熱的影響を受けると所望の効果が発揮できないおそれがある。弾性体１０６の底面はＦＰＣ１０４に圧接するため、ＦＰＣ１０４おもて面上にある信号用銅箔パターン１１１、信号用銅箔パターンの引回し部８０２、集熱用銅箔パターン（８００、９００、１１０１）にも接触してしまう。弾性体１０６は熱容量が大きいため、温度変化の速度が遅い。従って、それに接している信号用銅箔パターン１１１、信号用銅箔パターンの引回し部８０２、集熱用銅箔パターン（８００、９００、１１０１）も弾性体１０６の温度変化の影響を受け、応答性も遅くなってしまう。あるいは、検知対象物表面１２０の温度が急変しても追従できない。この現象を避けるには、図１３に示すように、信号用銅箔パターン１１１に相当する部分だけに窪み１３００を設け弾性体１０６と信号用銅箔パターン１１１との接触を避けるとよい。実施形態４において空洞４０１により、実施形態８から１２で述べた感熱素子１０５周囲の信号用銅箔パターンの引回し部８０２、集熱用銅箔パターン（８００、９００、１１０１）の弾性体１０６への接触を避けることが可能であり、さらに窪み１３００があれば全ての信号用銅箔パターン１１１は弾性体１０６の底面に接触しない。実施形態２〜１２においては、幅広部１０２の両側に第１および第２の帯状部（１０１、１４０）があるが、信号用銅箔パターン１１１は片方の第１の帯状部１０１にしか存在しない。従って、弾性体１０６の窪みも信号用銅箔パターン１１１がある側の窪み１３００だけでよいが、検知対象物表面１２０への押付け力分布や弾性体１０６の変形の対象性を保つために、窪み１３００と対象の位置にも窪み１３０１が設けることが好ましい。また、弾性体１０６を組立てる際にも、１８０度以内で回転対称位置となるため組立作業がしやすくなる。なお、信号線１５０が銅箔パターンではなく、ワイヤーの場合でも同様に、ワイヤーに相当する部分に窪み１３００を設けて、ワイヤーと弾性体１０６との接触を避けることが可能である。なお、発泡性樹脂５０１で感温素子１０５の底面を除いて被覆し、発泡性樹脂５０１が弾性体１０６に接している場合、発泡性樹脂５０１が実施形態８から１２で述べた感熱素子１０５周囲の信号用銅箔パターンの引回し部８０２、集熱用銅箔パターン（８００、９００、１１０１）と接する構造とすることでも、弾性体１０６との接触を避けることが可能である。なお、少なくとも窪み１３００と対向するＦＰＣ１０４および信号線１５０上には発泡樹脂５０１が存在することが好ましい。発泡樹脂５０１が存在することにより、信号線１５０と弾性体１０６との接触を避けることが可能となる。また、弾性体１０６が発泡樹脂５０１と接することにより、外部からの空気の進入を確実に遮断することが可能となる。窪み１３０１が存在する場合も同様に窪み１３０１と対向するＦＰＣ１０４上には発泡樹脂５０１が存在することが好ましい。 (Embodiment 13)
As described above, the device utilizing the thermal properties of the copper foil pattern has been described. However, the signal copper foil pattern 111, the routing portion 802 of the signal copper foil pattern, the heat collecting copper foil pattern (800, 900, 1101). It is desirable that the FPC 104 formed with is not in contact with other objects other than in contact with the surface 120 to be detected. This is because contact with other objects is affected by the temperature. As described so far, even if a heat contrivance is applied to the signal copper foil pattern 111, the signal copper foil pattern routing portion 802, and the heat collecting copper foil pattern (800, 900, 1101), There is a possibility that the desired effect cannot be exerted if it is subjected to thermal influence from the product. Since the bottom surface of the elastic body 106 is in pressure contact with the FPC 104, the signal copper foil pattern 111 on the front surface of the FPC 104, the routing portion 802 of the signal copper foil pattern, and the heat collecting copper foil patterns (800, 900, 1101). ). Since the elastic body 106 has a large heat capacity, the speed of temperature change is slow. Therefore, the signal copper foil pattern 111 in contact therewith, the routing portion 802 of the signal copper foil pattern, and the copper foil pattern for heat collection (800, 900, 1101) are also affected by the temperature change of the elastic body 106, and the response. Sex will also be slow. Or it cannot follow even if the temperature of the detection target object surface 120 changes suddenly. In order to avoid this phenomenon, as shown in FIG. 13, it is preferable to provide a recess 1300 only in a portion corresponding to the signal copper foil pattern 111 to avoid contact between the elastic body 106 and the signal copper foil pattern 111. In the fourth embodiment, the cavity 401 leads to the signal copper foil pattern routing portion 802 around the thermal element 105 described in the eighth to twelfth embodiments and the elastic body 106 of the heat collecting copper foil pattern (800, 900, 1101). If there is a recess 1300, all the signal copper foil patterns 111 do not contact the bottom surface of the elastic body 106. In the second to twelfth embodiments, the first and second strip portions (101, 140) are provided on both sides of the wide portion 102, but the signal copper foil pattern 111 exists only in the first strip portion 101 on one side. . Accordingly, the depression of the elastic body 106 may be only the depression 1300 on the side where the signal copper foil pattern 111 is present. However, in order to maintain the distribution of the pressing force on the detection target surface 120 and the object of deformation of the elastic body 106, the depression It is preferable that a recess 1301 is provided at the position of 1300 and the target. Also, when assembling the elastic body 106, the assembly becomes easy because the position becomes rotationally symmetric within 180 degrees. Similarly, when the signal line 150 is not a copper foil pattern but a wire, it is possible to provide a recess 1300 in a portion corresponding to the wire to avoid contact between the wire and the elastic body 106. When the foamable resin 501 is coated except for the bottom surface of the temperature sensitive element 105, and the foamable resin 501 is in contact with the elastic body 106, the foamable resin 501 is surrounded by the thermal element 105 described in the eighth to twelfth embodiments. It is also possible to avoid contact with the elastic body 106 by adopting a structure in contact with the routing portion 802 of the signal copper foil pattern and the heat collecting copper foil pattern (800, 900, 1101). Note that it is preferable that the foamed resin 501 exists on at least the FPC 104 and the signal line 150 facing the recess 1300. The presence of the foamed resin 501 makes it possible to avoid contact between the signal line 150 and the elastic body 106. Further, since the elastic body 106 is in contact with the foamed resin 501, it is possible to reliably block the entry of air from the outside. Similarly, when the depression 1301 exists, it is preferable that the foamed resin 501 exists on the FPC 104 facing the depression 1301.

（実施形態１４）
実施形態１３において、信号用銅箔パターン１１１が弾性体１０６の底面に接触しないようにする構造について述べたが、底面以外でも信号用銅箔パターン１１１が弾性体１０６に接触しないことが望ましい。図１３において、第１の帯状部１０１は弾性体１０６側面から離れて保持されており、かつ、たるみを持った状態となっているため弾性体１０６が変形しても、お互いが接触しない。実施形態１４においては第１の帯状部１０１と対称位置にある第２の帯状部１４０も、第１の帯状部１０１と対称になっており、同様に弾性体１０６から離れて保持されており、かつ、たるみを持った状態となっている。これは弾性体１０６が変形すると、第１および第２の帯状部（１０１、１４０）も対称に変形することにより、対象変形の中心部にある幅広部１０２への影響を相殺し、幅広部１０２が検知対象物表面１２０に安定して接触するようにするためである。また第１および第２の帯状部（１０１、１４０）が弾性体１０６側面に接触しないため、弾性体１０６の変形の影響が第１および第２の帯状部（１０１、１４０）の変形に影響を与えない。弾性体１０６と第１および第２の帯状部（１０１、１４０）は独立して変形するため、変形の過程においてお互いの変形に影響を及ぼさない。もし、お互いが干渉するようなことがあると、例えば弾性体１０６の側面の膨らみが第１および第２の帯状部（１０１、１４０）に制限され、弾性体１０６の変形を抑える、あるいは第１および第２の帯状部（１０１、１４０）と擦れる、ＦＰＣ１０４に張力がかかるなどの問題が発生するおそれがある。これを避けるために、第１および第２の帯状部（１０１、１４０）は弾性体１０６側面からたるみを持った状態で離れて保持されている。 (Embodiment 14)
In the thirteenth embodiment, the structure in which the signal copper foil pattern 111 is not in contact with the bottom surface of the elastic body 106 is described. However, it is desirable that the signal copper foil pattern 111 is not in contact with the elastic body 106 other than the bottom surface. In FIG. 13, the first belt-like portion 101 is held away from the side surface of the elastic body 106 and has a slack, so that even if the elastic body 106 is deformed, they do not contact each other. In the fourteenth embodiment, the second strip 140 that is symmetrical with the first strip 101 is also symmetric with the first strip 101, and is similarly held away from the elastic body 106. And it is in a state with slack. When the elastic body 106 is deformed, the first and second strips (101, 140) are also deformed symmetrically to cancel the influence on the wide portion 102 at the center of the target deformation, and the wide portion 102 This is to stably contact the surface 120 of the detection target. In addition, since the first and second strips (101, 140) do not contact the side surfaces of the elastic body 106, the influence of the deformation of the elastic body 106 affects the deformation of the first and second strips (101, 140). Don't give. Since the elastic body 106 and the first and second strips (101, 140) are deformed independently, they do not affect each other's deformation during the deformation process. If they interfere with each other, for example, the bulge of the side surface of the elastic body 106 is limited to the first and second strips (101, 140), and the deformation of the elastic body 106 is suppressed, or the first In addition, problems such as rubbing against the second belt-like portions (101, 140) and tension on the FPC 104 may occur. In order to avoid this, the first and second strips (101, 140) are held away from the side surface of the elastic body 106 with a slack.

（実施形態１５）
実施例１５においては図１４（ａ）に示すように、左右の第１および第２の帯状部（１０１、１４０）の長手方向中心がずれて配置されている。これは、左右の第１および第２の帯状部（１０１、１４０）が撓んだことにより発生する幅広部１０２への圧迫力により幅広部１０２の第１および第２の方向における中央部が浮き上がることを防ぐためである。これまでの実施例のように左右の第１および第２の帯状部（１０１、１４０）の中心が揃っている場合、第１および第２の帯状部（１０１、１４０）の変形による反発力が、幅広部１０２に対し左右から発生し幅広部１０２の中心で拮抗する。この様子を図６を用いて説明する。第１の帯状部１０１がたわんだ事による反発力２０１と、第２の帯状部１４０がたわんだ事による反発力２４０はお互いにほぼ等しい力で反対向きであり、力の中心は一致しているので、幅広部１０２の第２の方向における中央部で拮抗する。結果として幅広部１０２を上部に浮き上がらせる力として働き、幅広部１０２の第２の方向における中央部と検知対象物表面１２０との接触が不安定になり、温度センサ装置（１００、２００、４００、５００）としての検知温度の精度に影響を与えるおそれがある。これに対し、図１４のように左右の第１および第２の帯状部（１０１、１４０）をお互いに段違い、つまり左右の第１および第２の帯状部（１０１、１４０）の延在方向に伸びるそれぞれの中心線を互いにずらせて配置する。つまり、平行な左右の第１および第２の帯状部（１０１、１４０）が同一直線上に存在しないようにお互いに段違いに配置した場合、第２の帯状部１４０のたわみによる反発力２４０と、第１の帯状部１０１のたわみによる反発力２０１とは力の中心がすれ違うため、幅広部１０２中央を押上げる力とならない。従って幅広部１０２と検知対象物表面１２０の接触を安定にすることができる。図１４（ｂ）はこのように、段違いの帯状部を持つＦＰＣを屈曲させて温度センサ装置に組み込んだ様子を示すものであり、図１４（ａ）に示す切断線Ａ−Ａ’に沿って矢印方向に見た断面図である。 (Embodiment 15)
In the fifteenth embodiment, as shown in FIG. 14A, the longitudinal center of the left and right first and second strips (101, 140) are shifted from each other. This is because the central portion of the wide portion 102 in the first and second directions is lifted by the compression force applied to the wide portion 102 that is generated when the left and right first and second belt-like portions (101, 140) are bent. This is to prevent this. When the centers of the left and right first and second strips (101, 140) are aligned as in the previous embodiments, the repulsive force due to the deformation of the first and second strips (101, 140) is reduced. The wide portion 102 is generated from the left and right and antagonizes at the center of the wide portion 102. This will be described with reference to FIG. The repulsive force 201 caused by the bending of the first belt-like portion 101 and the repulsive force 240 caused by the bending of the second belt-like portion 140 are opposite to each other with almost equal forces, and the centers of the forces coincide with each other. Therefore, it antagonizes in the center part in the 2nd direction of the wide part 102. FIG. As a result, it acts as a force that lifts the wide portion 102 upward, the contact between the central portion in the second direction of the wide portion 102 and the surface 120 to be detected becomes unstable, and the temperature sensor device (100, 200, 400, 500), the accuracy of the detected temperature may be affected. On the other hand, as shown in FIG. 14, the left and right first and second strips (101, 140) are different from each other, that is, in the extending direction of the left and right first and second strips (101, 140). The extending center lines are shifted from each other. That is, when the parallel left and right first and second belt-like portions (101, 140) are arranged so as not to be on the same straight line, the repulsive force 240 due to the deflection of the second belt-like portion 140, Since the center of the force is different from the repulsive force 201 due to the deflection of the first belt-like portion 101, it does not become a force for pushing up the center of the wide portion 102. Therefore, the contact between the wide portion 102 and the detection target object surface 120 can be stabilized. FIG. 14B shows a state in which an FPC having a band-like portion with different steps is bent and incorporated in the temperature sensor device, and is taken along a cutting line AA ′ shown in FIG. It is sectional drawing seen in the arrow direction.

本発明に係わる温度センサは、ケースに内蔵されたバッテリセルの温度検出などの機器に利用できる。 The temperature sensor according to the present invention can be used for devices such as temperature detection of a battery cell built in a case.

１０温度センサ
１００、２００、４００、５００温度センサ装置
１０１、１４０帯状部
１０２幅広部
１０３端子部（第１の端部）
１０４ＦＰＣ
１０５感温素子
１０６弾性体
１０７固定部
１０８リード線
１１０ランドパターン
１１１信号用銅箔パターン
１１２端子銅箔パターン
１４１係止部（第２の端部）
１５０信号線
１５１端子
１７１第１の支持部
１７２第２の支持部
１７３第３の支持部
２０１、２４０反発力
３００ケース
３０１検知対象物
３０２ケース内部の雰囲気
３０３ケース外部の雰囲気
３０４ケースの壁に開けられた穴
４０１空間
５０１発泡性樹脂
８００、９００集熱用銅箔パターン
９０１集熱用銅箔パターンの先端
１１００接触用銅箔パターン
１３００、１３０１窪み
DESCRIPTION OF SYMBOLS 10 Temperature sensor 100, 200, 400, 500 Temperature sensor apparatus 101, 140 Band-shaped part 102 Wide part 103 Terminal part (1st edge part)
104 FPC
105 Temperature Sensitive Element 106 Elastic Body 107 Fixing Section 108 Lead Wire 110 Land Pattern 111 Signal Copper Foil Pattern 112 Terminal Copper Foil Pattern 141 Locking Section (Second End)
150 Signal line 151 terminal
171 1st support part 172 2nd support part 173 3rd support part 201,240 Repulsive force 300 Case 301 Detected object 302 Atmosphere inside case 303 Atmosphere outside case 304 Hole 401 opened in case wall Space 501 Foamable resin 800, 900 Heat-collecting copper foil pattern 901 Tip of heat-collecting copper foil pattern 1100 Contact copper foil pattern 1300, 1301

Claims

A first end fixed to the first support portion; and a first end extending in a first direction from the first end in a state of being continuous with the first end and having a slack. A film having a belt-like portion, and a wide portion that is continuous with the first belt-like portion and has a width larger than that of the first belt-like portion in a second direction orthogonal to the first direction;
In the wide portion, a temperature sensitive element fixed to a substantially central portion in the second direction of the front surface of the film;
The wide portion surrounds the temperature sensing element and is arranged on the front surface of the film, and the back surface of the film is pressed against the surface of the object to be detected by the repulsive force of deformation, and the front surface of the film A temperature sensor having an elastic body in contact with the surface.

The temperature sensor according to claim 1, wherein the bottom surface of the elastic body is a convex surface that protrudes downward from an inner peripheral side to an outer peripheral side of the bottom surface.

The film is continuous with the second end portion fixed to the second support portion, the wide portion and the second end portion, and has a slack in the first end portion from the second end portion. The temperature sensor according to claim 1, further comprising: a second belt-shaped portion that extends in a direction opposite to the direction and has a width smaller than the wide portion in the second direction.

The elastic body and the temperature sensing element are disposed between an inner wall of a case and a detection target housed in the case, and a back surface of the film facing the bottom surface of the elastic body is a detection target. In contact with the surface of the object to be detected,
In the upper part of the elastic body, the elastic body is deformed by being pressed from the third support portion, and the back surface of the film is pressed against the surface of the object to be detected by the repulsive force of the deformation, and the third support portion The temperature sensor according to any one of claims 1 to 3, wherein an elastic body is fixed to the inner wall of the case.

The temperature sensor as described in any one of Claims 1 thru | or 4 with which the space for avoiding a contact with the said elastic body with the said thermosensitive element is provided.

Having foamable resin,
5. The temperature sensor according to claim 1, wherein the thermosensitive element is covered by the foamable resin except for a bottom surface, and the foamable resin and the elastic body are in contact with each other.

A land pattern for bonding to the electrode of the temperature sensing element formed on the front surface of the film;
In the wide part and the first belt-like part, the signal copper foil pattern formed integrally with the film or the front surface of the film is disposed on the front surface of the film connected to the land pattern. The temperature sensor according to any one of claims 1 to 6, further comprising a signal wire.

The temperature sensor according to claim 7, wherein the wide portion has a portion where the signal copper foil pattern or the signal wire meanders.

9. The temperature sensor according to claim 7, wherein the signal copper foil pattern or the signal wire is folded around the temperature sensing element in the wide portion or drawn in a spiral shape. 10. .

10. The temperature sensor according to claim 7, wherein a heat collecting copper foil pattern connected to the land pattern is provided in a region near the temperature sensing element in the wide portion.

The temperature sensor according to claim 10, wherein the heat-collecting copper foil pattern is a pair of facing semicircles, and the temperature-sensitive element is located at the center thereof.

The temperature sensor according to claim 10, wherein the copper foil pattern for heat collection extends radially around the electrode.

The temperature sensor according to claim 10, wherein the heat collecting copper foil pattern radially extends and branches around the electrode.

The temperature sensor as described in any one of Claims 7 thru | or 13 with which the copper foil pattern for heat collection is provided in the vicinity area | region around the said temperature sensing element in the said wide part of the back surface of the said film.

The elastic body has a depression in a portion facing the signal copper foil pattern or the signal wire, and is formed integrally with the film on the signal copper foil pattern or the signal copper foil pattern. The temperature sensor according to claim 7, wherein a surface of the elastic body does not contact the layer or the signal wire.

The temperature sensor according to any one of claims 1 to 15, wherein the first and / or second belt-like portion is held away from the side surface of the elastic body with a slack.

17. The first and second strip portions are provided to face each other with the wide portion and the thermosensitive element sandwiched therebetween, and the center lines of the first and second strip portions are uneven. The temperature sensor as described in any one.

The temperature sensor according to any one of claims 1 to 4, or the temperature sensor according to any one of claims 6 to 17, wherein the elastic body is a foamable resin.