JP2018151348A - Temperature sensor - Google Patents

Temperature sensor Download PDF

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JP2018151348A
JP2018151348A JP2017049479A JP2017049479A JP2018151348A JP 2018151348 A JP2018151348 A JP 2018151348A JP 2017049479 A JP2017049479 A JP 2017049479A JP 2017049479 A JP2017049479 A JP 2017049479A JP 2018151348 A JP2018151348 A JP 2018151348A
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temperature sensor
heat collecting
temperature
thermistor
collecting member
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JP6931291B2 (en
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彬宜 坂本
Akinori Sakamoto
彬宜 坂本
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Yazaki Corp
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Yazaki Corp
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Abstract

PROBLEM TO BE SOLVED: To provide a temperature sensor capable of accurately measuring the temperature of a part to be measured.SOLUTION: The temperature sensor includes: a thermistor 4; a lead portion 5 connected to the thermistor 4; an electric wire 6 connected to the lead portion 5; and a crimp portion 7 crimping and connecting the conductors of the lead portion 5 and the electric wire 6. The thermistor 4, the lead portion 5, the crimp portion 7, and a part of the electric wire 6 behind the crimp portion 7 in the detection wire 2 are covered with a metal heat collection member 3.SELECTED DRAWING: Figure 1

Description

本発明は、例えば車載バッテリーのセルなどの被測定部の温度検出等に用いるのに好適な温度センサに関する。 The present invention relates to a temperature sensor suitable for use in, for example, temperature detection of a part to be measured such as a cell of an in-vehicle battery.

ハイブリッド自動車や電気自動車などに搭載されるバッテリーは、通常、複数のバッテリーセルを直列に接続して、所定の出力電圧が得られるように構成されている。そして、これらバッテリーセルは、過充電、過放電が生じると寿命が短くなるため、バッテリーセルの過充電、過放電を防止するため、バッテリーセルに温度センサを装着して、バッテリーセルの温度を測定して監視が行われている。   A battery mounted on a hybrid vehicle or an electric vehicle is usually configured such that a predetermined output voltage is obtained by connecting a plurality of battery cells in series. And since these battery cells have a short life when overcharge and overdischarge occur, in order to prevent overcharge and overdischarge of the battery cell, a temperature sensor is attached to the battery cell and the temperature of the battery cell is measured. Monitoring is done.

バッテリーセルの温度を測定するために使用される従来の温度センサは、特許文献１に示すような構成を有している。すなわち、特許文献１に示される温度センサ２１は、図１０，図１１に示ようにサーミスタの周囲を樹脂ケースで覆ったセンサ本体２３と、該センサ本体２３からその側方に延出した係止アーム２５とを備えている。
このセンサ本体２３は、先端に、被測定部であるバッテリーセル８の表面８ａに当接する平坦な測温面２３ａが設けられており、後端には、本体内のサーミスタに接続したリード線９が引き出されている。
そして、このリード線９は、ケーブル２６を介して温度測定装置又は温度測定回路基板に接続された構成となっている。 A conventional temperature sensor used to measure the temperature of a battery cell has a configuration as shown in Patent Document 1. That is, the temperature sensor 21 disclosed in Patent Document 1 includes a sensor body 23 in which the periphery of the thermistor is covered with a resin case as shown in FIGS. 10 and 11, and a latch extending from the sensor body 23 to the side thereof. Arm 25.
The sensor main body 23 is provided with a flat temperature measuring surface 23a at the front end, which is in contact with the surface 8a of the battery cell 8 which is a part to be measured, and a lead wire 9 connected to the thermistor in the main body at the rear end. Has been pulled out.
The lead wire 9 is connected to a temperature measuring device or a temperature measuring circuit board via a cable 26.

そして、この温度センサ２１には、センサ本体２３に弾性変位可能に延設された可撓部材３３上に、係止アーム２５がセンサ本体２３から延出して設けられている。
この係止アーム２５は、温度センサ２１を装着するモジュール部品２８のセンサ係止部２７に自由端２５ａが係止される。
このセンサ係止部２７は、係止アーム２５の自由端２５ａをバッテリーセル８側に押さえ込む壁部材となっており、バッテリーセル８の上面側に固定される樹脂製のモジュール部品２８に一体形成されている。 The temperature sensor 21 is provided with a locking arm 25 that extends from the sensor body 23 on a flexible member 33 that is elastically displaced from the sensor body 23.
The locking arm 25 has a free end 25 a locked to the sensor locking portion 27 of the module component 28 to which the temperature sensor 21 is mounted.
The sensor locking portion 27 is a wall member that presses the free end 25 a of the locking arm 25 toward the battery cell 8, and is integrally formed with a resin module component 28 that is fixed to the upper surface side of the battery cell 8. ing.

この自由端のセンサ係止部２７への係止によって、温度センサ２１は、係止アーム２５の弾性復元力によってセンサ本体２３の先端の測温面２３ａと被測定部との密着状態を確保している。
そして、この係止アーム２５は、センサ本体２３の両側に延出して設けられていており、その先端部である自由端２５ａが、バッテリーセル８の表面８ａに対して定位置に設けられたセンサ係止部２７に係止されることで、バッテリーセル８に対する位置決めが行われる。 By locking the free end to the sensor locking portion 27, the temperature sensor 21 ensures a close contact state between the temperature measuring surface 23 a at the tip of the sensor body 23 and the measured portion by the elastic restoring force of the locking arm 25. ing.
The locking arm 25 is provided so as to extend on both sides of the sensor main body 23, and a free end 25 a that is a tip portion of the locking arm 25 is provided at a fixed position with respect to the surface 8 a of the battery cell 8. By being locked by the locking portion 27, positioning with respect to the battery cell 8 is performed.

このようにして、温度センサ２１は、モジュール部品２８のセンサ収納部３１に収納すると、センサ本体２３の先端の測温面２３ａが被測定部であるバッテリーセル８の表面８ａに当接する。この測温面２３ａのバッテリーセル８の表面８ａへの当接によって、バッテリーセル８の表面８ａから発する熱を測温面２３ａで集熱し、センサ本体２３内に収納されたサーミスタによって温度の測定を行うようになっている。
すなわち、従来の温度センサ２１は、サーミスタの周囲を覆う樹脂ケースで形成されたセンサ本体２３で構成された集熱板によって受熱しセンサ本体２３の内部に収納されている測温素子となるサーミスタで温度を検出する構造となっている。 In this way, when the temperature sensor 21 is housed in the sensor housing portion 31 of the module component 28, the temperature measuring surface 23a at the tip of the sensor main body 23 comes into contact with the surface 8a of the battery cell 8 that is the portion to be measured. The temperature measurement surface 23a contacts the surface 8a of the battery cell 8 to collect heat generated from the surface 8a of the battery cell 8 at the temperature measurement surface 23a, and the temperature is measured by the thermistor housed in the sensor body 23. To do.
That is, the conventional temperature sensor 21 is a thermistor that receives heat by a heat collecting plate formed of a sensor body 23 formed of a resin case that covers the periphery of the thermistor and serves as a temperature measuring element housed in the sensor body 23. It has a structure for detecting temperature.

特開２０１１−１７６３８号公報JP 2011-17638 A

このように従来の温度センサ２１は、インサート成形によって測温素子となるサーミスタ、センサ本体２３で構成された樹脂ケースの集熱板を一体成形しており、係止アーム２５にバネ性が必要なため、バネ性のある樹脂を使用している。
そして、従来の温度センサ２１では、係止アーム２５にバネ性を持たせるため熱伝導の悪い樹脂を使用することになる。
このため従来の温度センサ２１にあっては、測温性能が向上しないという問題点を有している。 As described above, the conventional temperature sensor 21 is integrally formed with a thermistor that becomes a temperature measuring element by insert molding and a heat collecting plate of a resin case constituted by the sensor body 23, and the locking arm 25 needs to have a spring property. Therefore, a resin having a spring property is used.
And in the conventional temperature sensor 21, in order to give the latching arm 25 springiness, resin with poor heat conduction is used.
For this reason, the conventional temperature sensor 21 has a problem that the temperature measurement performance is not improved.

また、従来の温度センサ２１では、測温素子となるサーミスタについては、センサ本体２３で構成された樹脂ケースの集熱板によって覆われているが、サーミスタに接続されるリード線９が集熱板に覆われていない構造となっている。
この従来の温度センサ２１の場合、被測定部であるバッテリーセル８の表面８ａから発する熱は、センサ本体２３で構成された樹脂ケースの集熱板と、サーミスタに接続されるリード線９に伝達し、集熱板とリード線９の部分から空中に放熱される。
このため従来の温度センサ２１の構造にあっては、集熱板によって覆われていないリード線９の部分からの放熱が大きく、測温の精度が低下するという問題点を有している。 In the conventional temperature sensor 21, the thermistor serving as the temperature measuring element is covered by the heat collecting plate of the resin case formed of the sensor body 23, but the lead wire 9 connected to the thermistor is the heat collecting plate. The structure is not covered with.
In the case of this conventional temperature sensor 21, the heat generated from the surface 8 a of the battery cell 8, which is the part to be measured, is transmitted to the heat collecting plate of the resin case constituted by the sensor body 23 and the lead wire 9 connected to the thermistor. Then, heat is radiated from the heat collecting plate and the lead wire 9 into the air.
For this reason, the structure of the conventional temperature sensor 21 has a problem that the heat radiation from the portion of the lead wire 9 not covered by the heat collecting plate is large, and the accuracy of temperature measurement is lowered.

本発明は、被測定部の温度の測定を精度良く行うことのできる温度センサを提供することにある。   It is an object of the present invention to provide a temperature sensor that can accurately measure the temperature of a part to be measured.

上記課題を解決するためになされた請求項１記載の本発明の温度センサは、サーミスタと、該サーミスタに接続されるリード部と、該リード部に接続される電線と、該リード部と電線の導体を加締めて接続する加締め部とを備えてなる温度検知線における前記サーミスタと、前記リード部と、前記加締め部と、該加締め部の後方の前記電線の一部を金属の集熱部材によって覆ったことを特徴としている。   The temperature sensor of the present invention according to claim 1, which has been made to solve the above problems, includes a thermistor, a lead portion connected to the thermistor, an electric wire connected to the lead portion, and the lead portion and the electric wire. The thermistor, the lead part, the caulking part, and a part of the electric wire behind the caulking part in a temperature detection line provided with a caulking part for caulking and connecting a conductor. It is characterized by being covered with a thermal member.

本願請求項１に記載の発明によれば、サーミスタと、リード部と、加締め部と、加締め部の後方の電線の一部とを集熱部材によって覆っているため、リード部と、加締め部と、加締め部の後方の電線の一部から空中へ放射される熱を極力抑制することができるため、被測定部の温度の測定を精度良く行うことができる。
さらに、本願請求項１に記載の発明によれば、集熱部材に金属を用いているため、被測定部からの集熱を効率よく行うことができるため、被測定部の温度の測定を精度良く行うことができる。 According to the first aspect of the present invention, the thermistor, the lead portion, the crimping portion, and a part of the electric wire behind the crimping portion are covered by the heat collecting member. Since heat radiated into the air from the fastening part and a part of the electric wire behind the crimping part can be suppressed as much as possible, the temperature of the part to be measured can be accurately measured.
Furthermore, according to the first aspect of the present invention, since metal is used for the heat collecting member, heat collection from the measured part can be performed efficiently, so the temperature of the measured part can be accurately measured. Can be done well.

上記課題を解決するためになされた請求項２記載の本発明の温度センサは、請求項１に記載の前記リード部と、前記電線とを、前記集熱部材の測温面の延在方向に延出するように配置したことを特徴としている。   The temperature sensor of the present invention according to claim 2, which has been made to solve the above-described problem, has the lead portion according to claim 1 and the electric wire in the extending direction of the temperature measuring surface of the heat collecting member. It is characterized by being arranged to extend.

本願請求項２に記載の発明によれば、リード部と電線とを、集熱部材の測温面の延在方向に延出するように配置してあるため、被測定部に当接する集熱部材の測温面の面積を大きくすることができ、被測定部から発する熱を効率よく集熱することができ、被測定部の温度の測定を精度良く行うことができる。   According to the invention described in claim 2 of the present application, since the lead portion and the electric wire are arranged so as to extend in the extending direction of the temperature measuring surface of the heat collecting member, the heat collecting contacted with the portion to be measured. The area of the temperature measuring surface of the member can be increased, the heat generated from the part to be measured can be efficiently collected, and the temperature of the part to be measured can be accurately measured.

上記課題を解決するためになされた請求項３記載の本発明の温度センサは、請求項１又は２に記載の集熱部材を、箱状に形成し、被測定部に当接される測温面に対向する面に、バネ部を一体成形して設けたことを特徴としている。   The temperature sensor of the present invention according to claim 3, which has been made to solve the above-mentioned problems, is a temperature measuring device in which the heat collecting member according to claim 1 or 2 is formed in a box shape and is brought into contact with a part to be measured. It is characterized in that a spring portion is integrally formed on a surface facing the surface.

本願請求項３に記載の発明によれば、集熱部材を、箱状に形成しているため、被測定部に当接する集熱部材の測温面が安定し、被測定部から発する熱を効率よく集熱することができができる。
また、本願請求項３に記載の発明によれば、集熱部材の被測定部に当接される測温面に対向する面に、バネ部を一体成形して設けたため、バネ部によるバネ力によって測温面を被測定部との密着性を確保でき、被測定部から発する熱を効率よく集熱することができができる。 According to the third aspect of the present invention, since the heat collecting member is formed in a box shape, the temperature measuring surface of the heat collecting member in contact with the measured portion is stabilized, and the heat generated from the measured portion is generated. It can collect heat efficiently.
According to the third aspect of the present invention, since the spring portion is integrally formed on the surface of the heat collecting member that faces the temperature measuring surface that is in contact with the measured portion, the spring force by the spring portion is provided. As a result, the temperature measuring surface can be secured to the portion to be measured, and the heat generated from the portion to be measured can be collected efficiently.

上記課題を解決するためになされた請求項４記載の本発明の温度センサは、請求項３に記載の集熱部材を、被測定部の上部に横方向から挿入して設置するようにしたことを特徴としている。   In order to solve the above-mentioned problems, the temperature sensor of the present invention according to claim 4 is configured such that the heat collecting member according to claim 3 is inserted and installed in the upper part of the portion to be measured from the lateral direction. It is characterized by.

本願請求項４に記載の発明によれば、集熱部材を、被測定部の上部に横方向から挿入して設置するようにしたため、被測定部に当接する集熱部材の測温面を大きく取ることができ、被測定部から発する熱を効率よく集熱することができる。   According to the invention described in claim 4 of the present application, since the heat collecting member is inserted and installed in the upper part of the portion to be measured from the lateral direction, the temperature measuring surface of the heat collecting member in contact with the portion to be measured is increased. Therefore, the heat generated from the measured part can be collected efficiently.

上記課題を解決するためになされた請求項５記載の本発明の温度センサは、請求項３又は４に記載のサーミスタと、リード部と、加締め部と、加締め部の後方の電線の一部とを、エポキシ樹脂によって封止してなることを特徴としている。   The temperature sensor of the present invention according to claim 5, which has been made to solve the above-mentioned problems, is a thermistor according to claim 3 or 4, a lead portion, a caulking portion, and an electric wire behind the caulking portion. The part is sealed with an epoxy resin.

本願請求項５に記載の発明によれば、サーミスタと、リード部と、加締め部と、加締め部の後方の電線の一部をエポキシ系樹脂接着剤によって封止してあるため、金属の集熱部材内に樹脂ケースよりも熱伝導率の高いエポキシ系樹脂接着剤を使用することで熱源である被測定部とサーミスタ間の熱抵抗が小さくでき、測温性能を向上することができる。   According to the invention described in claim 5 of the present application, since the thermistor, the lead portion, the swaged portion, and a part of the electric wire behind the swaged portion are sealed with the epoxy resin adhesive, By using an epoxy resin adhesive having a thermal conductivity higher than that of the resin case in the heat collecting member, the thermal resistance between the measured portion which is a heat source and the thermistor can be reduced, and the temperature measurement performance can be improved.

本発明によれば、集熱部材とバネ部を一体させることにより部品点数を減らすことができ、コストダウンをすることができる。   According to the present invention, the number of parts can be reduced by integrating the heat collecting member and the spring portion, and the cost can be reduced.

また、本発明によれば、集熱部材を金属の箱状に形成し、内部にサーミスタ、リード部、加締め部を収めることで、被測定部からの受熱量を増やすことができ、測温性能を向上することができる。   Further, according to the present invention, the heat collecting member is formed in a metal box shape, and the thermistor, the lead portion, and the crimped portion are accommodated therein, so that the amount of heat received from the measured portion can be increased, and the temperature measurement The performance can be improved.

さらに、本発明によれば、被測定部である熱源とサーミスタ間に熱伝導の良いエポキシ系樹脂接着剤を使用することで熱抵抗を小さくすることができ、測温性能を向上することができる。   Furthermore, according to the present invention, the thermal resistance can be reduced by using an epoxy resin adhesive having good thermal conductivity between the heat source and the thermistor, which is the part to be measured, and the temperature measurement performance can be improved. .

本発明に係る温度センサの全体斜視図である。1 is an overall perspective view of a temperature sensor according to the present invention. 図１に図示の温度センサの正面図である。FIG. 2 is a front view of the temperature sensor illustrated in FIG. 1. 図１に図示の温度センサの側面図である。FIG. 2 is a side view of the temperature sensor illustrated in FIG. 1. 図１に図示の温度センサの平面図である。FIG. 2 is a plan view of the temperature sensor illustrated in FIG. 1. 図４に図示の温度センサのＡ−Ａ断面図である。It is AA sectional drawing of the temperature sensor shown in FIG. 図１に図示の温度センサの集熱部材に樹脂接着剤を封入した状態を示す図である。It is a figure which shows the state which enclosed the resin adhesive in the heat collecting member of the temperature sensor shown in FIG. 図６に図示の温度センサを収納容器に挿入する前の状態を示す図である。It is a figure which shows the state before inserting the temperature sensor shown in FIG. 6 in a storage container. 図６に図示の温度センサを収納容器の途中まで挿入した状態を示す図である。It is a figure which shows the state which inserted the temperature sensor shown in FIG. 6 in the middle of the storage container. 図６に図示の温度センサを収納容器に完全に挿入した状態を示す図である。It is a figure which shows the state which inserted the temperature sensor shown in FIG. 6 in the storage container completely. （ａ）は従来の温度センサの正面図、（ｂ）は同側面図である。(A) is a front view of the conventional temperature sensor, (b) is the same side view. 従来の温度センサの取付状態の説明図である。It is explanatory drawing of the attachment state of the conventional temperature sensor.

以下、本発明の実施例について図面を用いて説明する。   Embodiments of the present invention will be described below with reference to the drawings.

図面の図１〜図６は、本発明に係る温度センサの実施例を示すものである。
図１は本発明に係る温度センサの全体斜視図、図２は図１に図示の温度センサの正面図、図３は図１に図示の温度センサの側面図、図４は図１に図示の温度センサの平面図、図５は図４に図示の温度センサのＡ−Ａ断面図、図６は図１に図示の温度センサの集熱部材に樹脂接着剤を封入した状態を示す図である。 1 to 6 of the drawings show an embodiment of a temperature sensor according to the present invention.
1 is an overall perspective view of a temperature sensor according to the present invention, FIG. 2 is a front view of the temperature sensor shown in FIG. 1, FIG. 3 is a side view of the temperature sensor shown in FIG. 1, and FIG. 5 is a plan view of the temperature sensor, FIG. 5 is a cross-sectional view taken along line AA of the temperature sensor shown in FIG. 4, and FIG. 6 is a view showing a state in which a resin adhesive is sealed in the heat collecting member of the temperature sensor shown in FIG. .

図１には、本発明に係る温度センサ１の全体が示されている。
図１において、温度センサ１は、温度検知線２と、この温度検知線２を収納する集熱部材３によって構成されている。
温度検知線２は、例えば、車載バッテリーのセルの表面などの温度を測定する対象物である被測定部の温度を検出するサーミスタ４と、このサーミスタ４に接続されるリード部（リード線）５と、このリード部（リード線）５に接続される電線６と、このリード部（リード線）５と電線６の導体を加締めて接続する加締め部７とによって構成されている。 FIG. 1 shows an entire temperature sensor 1 according to the present invention.
In FIG. 1, the temperature sensor 1 includes a temperature detection line 2 and a heat collecting member 3 that houses the temperature detection line 2.
The temperature detection line 2 includes, for example, a thermistor 4 that detects the temperature of a part to be measured, which is an object for measuring the temperature of the cell surface of an in-vehicle battery, and a lead part (lead wire) 5 connected to the thermistor 4. And an electric wire 6 connected to the lead portion (lead wire) 5 and a caulking portion 7 for caulking and connecting the lead portion (lead wire) 5 and the conductor of the electric wire 6.

サーミスタ４は、金属酸化物や半導体などの温度変化に対して電気抵抗の変化が大きい抵抗体で、この電気抵抗が温度で変化することを利用して温度を測るためセンサである。このサーミスタ４には、リード部（リード線）５が接続されており、このリード部（リード線）５は、サーミスタ４の電気抵抗の変化によって生じる変化した電流値又は電圧値を出力するようになっている。
このリード部（リード線）５のサーミスタ４の接続されている側と反対側の端部は、電線６の導体と加締められて、接続されている。このリード部（リード線）５と電線６の導体との加締めによって、加締め部７が形成されている。 The thermistor 4 is a resistor having a large change in electrical resistance with respect to a change in temperature, such as a metal oxide or a semiconductor. The thermistor 4 is a sensor for measuring the temperature by utilizing the change in the electrical resistance with temperature. A lead portion (lead wire) 5 is connected to the thermistor 4, and the lead portion (lead wire) 5 outputs a changed current value or voltage value caused by a change in electrical resistance of the thermistor 4. It has become.
The end of the lead portion (lead wire) 5 opposite to the side to which the thermistor 4 is connected is crimped to the conductor of the electric wire 6 and connected. A caulking portion 7 is formed by caulking the lead portion (lead wire) 5 and the conductor of the electric wire 6.

集熱部材３は、熱源である被測定部から発せられた熱を集めるもので、金属製で形成されている。この集熱部材３は、箱状に形成されており、温度検知線２を収納載置する平坦な底面部３ａと、この底面部３ａに連成される２つの側面部３ｂ，３ｃとを有し、この２つの側面部３ｂ，３ｃの前方を塞ぐ前面部３ｄとを備えている。
さらに集熱部材３は、２つの側面部３ｂ，３ｃの上端部に、上面部を有し、この上面部は開口されている。
集熱部材３の底面部３ａは、熱源である被測定部に当接するように載置するものであるため、平坦な面となる測温面を構成している。 The heat collecting member 3 collects heat generated from the measurement target portion which is a heat source, and is made of metal. The heat collecting member 3 is formed in a box shape, and has a flat bottom surface portion 3a for accommodating and mounting the temperature detection line 2 and two side surface portions 3b and 3c coupled to the bottom surface portion 3a. And a front surface portion 3d that covers the front of the two side surface portions 3b and 3c.
Furthermore, the heat collecting member 3 has an upper surface portion at the upper end portions of the two side surface portions 3b and 3c, and the upper surface portion is opened.
Since the bottom surface portion 3a of the heat collecting member 3 is placed so as to be in contact with the portion to be measured which is a heat source, it constitutes a temperature measuring surface which is a flat surface.

この集熱部材３においては、電線６を取り出すための取出口となる後面部が、開放された状態となっている。
また、温度センサ１において測温面を構成している被測定部に当接する集熱部材３の底面部３ａは、熱源である被測定部に当接するように載置し、被測定部であるバッテリーセル１１の表面１１ａの温度を測温するものであるため、平坦な面に構成されている。
さらに、集熱部材３の上面部には、集熱部材３の前面部３ｄから連成して集熱部材３の側面部３ｂ，３ｃから見て斜め上方に、集熱部材３の上面部の開口を塞ぐようにバネ部８が一体成形して設けられている。 In the heat collecting member 3, the rear surface portion serving as an outlet for taking out the electric wire 6 is in an open state.
In addition, the bottom surface portion 3a of the heat collecting member 3 that comes into contact with the part to be measured that constitutes the temperature measuring surface in the temperature sensor 1 is placed so as to come into contact with the part to be measured that is a heat source, and is the part to be measured. Since the temperature of the surface 11a of the battery cell 11 is measured, it is configured as a flat surface.
Further, the upper surface portion of the heat collecting member 3 is coupled to the front surface portion 3d of the heat collecting member 3 diagonally upward as viewed from the side surface portions 3b and 3c of the heat collecting member 3 on the upper surface portion of the heat collecting member 3. A spring portion 8 is integrally formed so as to close the opening.

そして、この集熱部材３には、温度検知線２が収納されている。さらに詳細に説明すると、集熱部材３には、温度検知線２のサーミスタ４と、リード部（リード線）５と、リード部（リード線）５と電線６の導体との加締め部７と、電線６の先端部が収納されている。
したがって、集熱部材３は、２つの側面部３ｂ，３ｃによって形成される幅よりも、温度検知線２のサーミスタ４の装着部から、電線６に向かう前面部３ｄと後面部とによって形成される奥行きの長さの方が大きく形成されている。
すなわち、集熱部材３の形状は、前後に細長い断面矩形状の箱形に形成されている。 The heat collecting member 3 houses a temperature detection line 2. More specifically, the heat collecting member 3 includes a thermistor 4 of the temperature detection wire 2, a lead portion (lead wire) 5, a crimp portion 7 between the lead portion (lead wire) 5 and the conductor of the electric wire 6, and The tip of the electric wire 6 is accommodated.
Accordingly, the heat collecting member 3 is formed by the front surface portion 3d and the rear surface portion facing the electric wire 6 from the mounting portion of the thermistor 4 of the temperature detection wire 2 rather than the width formed by the two side surface portions 3b and 3c. The depth is larger.
That is, the shape of the heat collecting member 3 is formed in a box shape with a rectangular cross section elongated in the front-rear direction.

そして、集熱部材３には、リード部（リード線）５と、このリード部（リード線）５と電線６の導体との加締め部７と、電線６とは、集熱部材３の測温面である底面部３ａの延在方向に延出するように配置してある。
すなわち、温度検知線２のサーミスタ４と、リード部（リード線）５と、リード部（リード線）５と電線６の導体との加締め部７と、電線６の先端の一部が集熱部材３によって覆われている。 The heat collecting member 3 includes a lead portion (lead wire) 5, a crimp portion 7 between the lead portion (lead wire) 5 and the conductor of the electric wire 6, and the electric wire 6. It arrange | positions so that it may extend in the extending direction of the bottom face part 3a which is a warm surface.
That is, the thermistor 4 of the temperature detection wire 2, the lead portion (lead wire) 5, the crimp portion 7 of the lead portion (lead wire) 5 and the conductor of the electric wire 6, and a part of the tip of the electric wire 6 collect heat. Covered by the member 3.

また、集熱部材３は、被測定部の上部に横方向から挿入して設置するようになっている。すなわち、集熱部材３は、その測温面である底面部３ａが被測定部の上部に当接するように装着されている。   Moreover, the heat collecting member 3 is inserted and installed in the upper part of a to-be-measured part from a horizontal direction. That is, the heat collecting member 3 is mounted such that the bottom surface portion 3a which is the temperature measuring surface is in contact with the upper portion of the measured portion.

また、集熱部材３は、温度検知線２のサーミスタ４と、リード部（リード線）５と、リード部（リード線）５と電線６の導体との加締め部７と、電線６の先端の一部との上が、エポキシ樹脂系接着剤９によって封止されている。このようにエポキシ樹脂系接着剤９によって封止することで温度検知線２は、集熱部材３内に確実に収納される。
すなわち、集熱部材３は、エポキシ樹脂系接着剤９の封止によって、底面部３ａと、２つの側面部３ｂ，３ｃと、前面部３ｄに囲まれた温度検知線２が強固に接着される。 Further, the heat collecting member 3 includes a thermistor 4 of the temperature detection wire 2, a lead portion (lead wire) 5, a crimp portion 7 of the lead portion (lead wire) 5 and the conductor of the electric wire 6, and the tip of the electric wire 6. A part of the upper part is sealed with an epoxy resin adhesive 9. Thus, the temperature detection line 2 is reliably accommodated in the heat collecting member 3 by sealing with the epoxy resin adhesive 9.
That is, the heat collecting member 3 is firmly bonded to the bottom surface portion 3a, the two side surface portions 3b and 3c, and the temperature detection line 2 surrounded by the front surface portion 3d by sealing with the epoxy resin adhesive 9. .

エポキシ樹脂系接着剤９は、エポキシ樹脂の液状樹脂を、ポリアミン類と呼ばれる硬化剤を常温域で化学反応（架橋）させることで硬化する二液型接着剤で、接着層は硬く、耐熱性、耐水性に優れている。
このエポキシ樹脂系接着剤９は、温度検知線２のサーミスタ４と、リード部（リード線）５と、リード部（リード線）５と電線６の導体との加締め部７と、電線６の先端の一部とが、埋まる程度封入されている。本実施例においては、エポキシ樹脂系接着剤９２つの側面部３ｂ，３ｃの上端部に面一になるように封入されている。
したがって、エポキシ樹脂系接着剤９の封止によって、温度検知線２は、集熱部材３に固定される。 The epoxy resin adhesive 9 is a two-part adhesive that cures a liquid resin of an epoxy resin by chemically reacting (crosslinking) a curing agent called polyamines at room temperature, and the adhesive layer is hard, heat resistant, Excellent water resistance.
The epoxy resin adhesive 9 includes a thermistor 4 of the temperature detection wire 2, a lead portion (lead wire) 5, a crimp portion 7 between the lead portion (lead wire) 5 and the conductor of the electric wire 6, and the electric wire 6. A part of the tip is enclosed so as to be filled. In the present embodiment, the epoxy resin adhesive 92 is sealed so as to be flush with the upper end portions of the side surface portions 3b and 3c.
Therefore, the temperature detection wire 2 is fixed to the heat collecting member 3 by sealing with the epoxy resin adhesive 9.

このように温度センサ１は、底面に、被測定部であるバッテリーセル１１の表面に当接する平坦な測温面である底面部３ａが設けられており、温度センサ１の後端は、集熱部材３内のサーミスタ４に接続したリード部（リード線）５が引き出されている。このリード部（リード線）５は、電線６を介して温度測定装置又は温度測定回路基板に接続されている。
バネ部８は、温度センサ１を収納するセンサ収納部材１０に収納した際に、温度センサ１がセンサ収納部材１０から飛び出すことがないように、センサ収納部材１０に当接し、温度センサ１を被測定部であるバッテリーセル１１の表面に押圧する作用を有している。
このバネ部８の温度センサ１を被測定部であるバッテリーセル１１の表面に押圧するバネ力によって、集熱部材３の測温面である底面部３ａは、確実にバッテリーセル１１の表面に当接する。 As described above, the temperature sensor 1 is provided with the bottom surface portion 3a which is a flat temperature measuring surface which is in contact with the surface of the battery cell 11 which is the measurement target portion on the bottom surface. A lead portion (lead wire) 5 connected to the thermistor 4 in the member 3 is drawn out. The lead portion (lead wire) 5 is connected to a temperature measuring device or a temperature measuring circuit board via an electric wire 6.
The spring portion 8 contacts the sensor housing member 10 so that the temperature sensor 1 does not jump out of the sensor housing member 10 when the temperature sensor 1 is housed in the sensor housing member 10 that houses the temperature sensor 1. It has the effect | action which presses on the surface of the battery cell 11 which is a measurement part.
Due to the spring force that presses the temperature sensor 1 of the spring portion 8 against the surface of the battery cell 11 that is the part to be measured, the bottom surface portion 3a that is the temperature measuring surface of the heat collecting member 3 is reliably brought into contact with the surface of the battery cell 11. Touch.

次に、図７〜図９を用いて、温度センサ１がセンサ収納部材１０に収納される状態について説明する。
図７において、センサ収納部材１０は、バッテリーセル１１の表面１１ａに取り付けられている。このセンサ収納部材１０には、温度センサ１を収納できる大きさの収納スペース１０ａが設けられている。
収納スペース１０ａは、センサ収納部材１０の下面に温度センサ１を収納できるだけの大きさの切欠きを設けることで形成されている。 Next, a state in which the temperature sensor 1 is housed in the sensor housing member 10 will be described with reference to FIGS.
In FIG. 7, the sensor housing member 10 is attached to the surface 11 a of the battery cell 11. The sensor storage member 10 is provided with a storage space 10a large enough to store the temperature sensor 1.
The storage space 10 a is formed by providing a notch with a size large enough to store the temperature sensor 1 on the lower surface of the sensor storage member 10.

センサ収納部材１０に形成される収納スペース１０ａは、温度センサ１を収納するための空間で、バッテリーセル１１の表面１１ａに対して温度センサ１を横方向からスライドして収納することができるように構成されている。
このように構成されるセンサ収納部材１０の収納スペース１０ａに収納するには、まず、図７に示すように、温度センサ１の集熱部材３の前面部３ｄ側をセンサ収納部材１０の収納スペース１０ａに対向させておく。 The storage space 10 a formed in the sensor storage member 10 is a space for storing the temperature sensor 1 so that the temperature sensor 1 can be slid from the lateral direction with respect to the surface 11 a of the battery cell 11 and stored. It is configured.
To store in the storage space 10a of the sensor storage member 10 configured as described above, first, as shown in FIG. 7, the front surface 3d side of the heat collecting member 3 of the temperature sensor 1 is placed in the storage space of the sensor storage member 10. It is made to oppose 10a.

しかる後、集熱部材３の前面部３ｄからセンサ収納部材１０の収納スペース１０ａの中に、図７に図示の矢印Ｂに示すように、押し込む。すると、温度センサ１は、図８に示すように、温度センサ１の集熱部材３の前面部３ｄ側が、センサ収納部材１０の収納スペース１０ａ内に挿入を開始する。
この温度センサ１の挿入が開始されると、センサ収納部材１０の収納スペース１０ａを形成するセンサ収納部材１０の収納部上面１０ｂに、集熱部材３の前面部３ｄに一体成形で設けられているバネ部８が当接する。
この温度センサ１をセンサ収納部材１０の収納スペース１０ａ内にさらに押し込むと、収納スペース１０ａを形成するセンサ収納部材１０の収納部上面１０ｂによって、バネ部８には、さらに図８に図示矢印Ｃに示すような温度センサ１の集熱部材３の底面部３ａに向かう方向の力が働く。 Thereafter, the heat collecting member 3 is pushed into the storage space 10a of the sensor storage member 10 as indicated by an arrow B shown in FIG. Then, as shown in FIG. 8, the temperature sensor 1 starts to be inserted into the storage space 10 a of the sensor storage member 10 on the front surface portion 3 d side of the heat collection member 3 of the temperature sensor 1.
When the insertion of the temperature sensor 1 is started, it is integrally formed on the front surface portion 3d of the heat collecting member 3 on the storage portion upper surface 10b of the sensor storage member 10 forming the storage space 10a of the sensor storage member 10. The spring part 8 contacts.
When the temperature sensor 1 is further pushed into the storage space 10a of the sensor storage member 10, the spring portion 8 is further moved to the arrow C shown in FIG. 8 by the storage portion upper surface 10b of the sensor storage member 10 forming the storage space 10a. A force in the direction toward the bottom surface portion 3a of the heat collecting member 3 of the temperature sensor 1 as shown in FIG.

この状態で、温度センサ１をセンサ収納部材１０の収納スペース１０ａ内にさらに押し込むと、バネ部８は、温度センサ１の底面部３ａに向かって押圧されながら前方に進んでいく。
そして、温度センサ１の前面部３ｄが、センサ収納部材１０の収納スペース１０ａを形成するセンサ収納部材１０の収納部底部１０ｃに当接すると、温度センサ１は、図９に示すように、その位置で止まり、温度センサ１は、センサ収納部材１０の収納スペース１０ａ内に収納される。 When the temperature sensor 1 is further pushed into the storage space 10 a of the sensor storage member 10 in this state, the spring portion 8 advances forward while being pressed toward the bottom surface portion 3 a of the temperature sensor 1.
When the front surface portion 3d of the temperature sensor 1 comes into contact with the storage portion bottom portion 10c of the sensor storage member 10 that forms the storage space 10a of the sensor storage member 10, the temperature sensor 1 is positioned as shown in FIG. The temperature sensor 1 is stored in the storage space 10 a of the sensor storage member 10.

この温度センサ１がセンサ収納部材１０の収納スペース１０ａ内に収納されたとき、温度センサ１のバネ部８は、センサ収納部材１０の収納スペース１０ａを形成するセンサ収納部材１０の収納部上面１０ｂに押圧されて図９に図示のように根元部８ａで曲げられた状態となる。
温度センサ１が図９に示すようにセンサ収納部材１０の収納スペース１０ａ内に収納されると、根元部８ａで曲げられたバネ部８には、バネ部８そのものが有しているバネ力によって、温度センサ１のバネ部８には、図９に図示矢印Ｄに示すようなセンサ収納部材１０の収納スペース１０ａの上面を押し上げる方向への力が作用する。 When the temperature sensor 1 is stored in the storage space 10 a of the sensor storage member 10, the spring portion 8 of the temperature sensor 1 is placed on the storage portion upper surface 10 b of the sensor storage member 10 that forms the storage space 10 a of the sensor storage member 10. As shown in FIG. 9, it is pressed and bent at the root portion 8a.
When the temperature sensor 1 is stored in the storage space 10a of the sensor storage member 10 as shown in FIG. 9, the spring portion 8 bent by the root portion 8a is caused by the spring force of the spring portion 8 itself. The force in the direction of pushing up the upper surface of the storage space 10a of the sensor storage member 10 as shown by the arrow D shown in FIG.

このときセンサ収納部材１０は、バッテリーセル１１の表面１１ａに固定されて動かない状態となっている。このため、温度センサ１のバネ部８は、バネ部８のバネ力の反力によって集熱部材３をバッテリーセル１１の表面１１ａに押し付ける力となって作用する。
このため、このバネ部８のバネ力によって温度センサ１の集熱部材３の測温面である底面部３ａは、バッテリーセル１１の表面１１ａに押圧された状態となっている。
この集熱部材３の底面部３ａがバッテリーセル１１の表面１１ａに押圧されることによって、集熱部材３の底面部３ａがバッテリーセル１１の表面に確実に当接し、バッテリーセル１１の表面１１ａの温度が確実に集熱部材３に伝達され、集熱部材３に収納されたサーミスタ４によって、バッテリーセル１１の表面１１ａの温度をより確実に測定することができる。 At this time, the sensor housing member 10 is fixed to the surface 11a of the battery cell 11 and is not moved. For this reason, the spring portion 8 of the temperature sensor 1 acts as a force that presses the heat collecting member 3 against the surface 11 a of the battery cell 11 by the reaction force of the spring force of the spring portion 8.
For this reason, the bottom surface portion 3 a which is the temperature measuring surface of the heat collecting member 3 of the temperature sensor 1 is pressed against the surface 11 a of the battery cell 11 by the spring force of the spring portion 8.
When the bottom surface portion 3 a of the heat collecting member 3 is pressed against the surface 11 a of the battery cell 11, the bottom surface portion 3 a of the heat collecting member 3 is surely brought into contact with the surface of the battery cell 11, and the surface 11 a of the battery cell 11 is The temperature is reliably transmitted to the heat collecting member 3, and the temperature of the surface 11 a of the battery cell 11 can be more reliably measured by the thermistor 4 housed in the heat collecting member 3.

以上のように構成される温度センサの集熱部材は、金属製で形成し、バネ部を一体に形成してあるため、集熱部材とバネ部を別部材で構成するものよりも、部品点数を削減することができる。
また、以上のように構成される温度センサの集熱部材は、金属ケース状に形成され、このケース内にサーミスタ、リード部、加締め部、電線の一部まで中に入れ、このサーミスタ、リード部、加締め部、電線の一部の部分をエポキシ樹脂系接着剤で封止しているため、被測定部からの受熱量を増すことができ、測温性能を向上することができる。 Since the heat collecting member of the temperature sensor configured as described above is made of metal and the spring part is integrally formed, the number of parts is larger than that in which the heat collecting member and the spring part are formed as separate members. Can be reduced.
Further, the heat collecting member of the temperature sensor configured as described above is formed in a metal case shape, and the thermistor, the lead portion, the crimping portion, and a part of the electric wire are put inside the case, and the thermistor, lead Since the part, caulking part, and part of the electric wire are sealed with the epoxy resin adhesive, the amount of heat received from the part to be measured can be increased, and the temperature measurement performance can be improved.

この他、本発明は本発明の主旨を変えない範囲で種々変更実施可能なことは勿論である。   In addition, the present invention can of course be modified in various ways within the scope not changing the gist of the present invention.

１……………………温度センサ
２……………………温度検知線
３……………………集熱部材
３ａ…………………底面部（測温面）
３ｂ，３ｃ…………側面部
３ｄ…………………前面部
４……………………サーミスタ
５……………………リード部（リード線）
６……………………電線
７……………………加締め部
８……………………バネ部
８ａ…………………根元部
９……………………エポキシ樹脂系接着剤
１０…………………センサ収納部材
１０ａ………………収納スペース
１０ｂ………………収納部上面
１０ｃ………………収納部底部
１１…………………バッテリーセル
１１ａ………………表面 1 …………………… Temperature sensor 2 …………………… Temperature detection line 3 …………………… Heat collecting member 3a …………………… Bottom surface (temperature measuring surface)
3b, 3c ………… Side face 3d ……………… Front face 4 ……………… Thermistor 5 …………………… Lead part (lead wire)
6 …………………… Wire 7 …………………… Casting part 8 …………………… Spring part 8a ………………… Root part 9 ……………… …… Epoxy resin adhesive 10 …………………… Sensor storage member 10a ……………… Storage space 10b ……………… Top of storage unit 10c ……………… Bottom of storage unit 11 …… …………… Battery cell 11a ……………… Surface

Claims (5)

サーミスタと、該サーミスタに接続されるリード部と、該リード部に接続される電線と、該リード部と電線の導体を加締めて接続する加締め部とを備えてなる温度検知線における前記サーミスタと、前記リード部と、前記加締め部と、該加締め部の後方の前記電線の一部を金属の集熱部材によって覆った
ことを特徴とする温度センサ。 The thermistor in a temperature detection line comprising: a thermistor; a lead portion connected to the thermistor; an electric wire connected to the lead portion; and a caulking portion for caulking and connecting the lead portion and a conductor of the electric wire. A temperature sensor, wherein the lead part, the caulking part, and a part of the electric wire behind the caulking part are covered with a metal heat collecting member. 請求項１に記載の温度センサにおいて、
前記リード部と前記電線とを、前記集熱部材の測温面の延在方向に延出するように配置した
ことを特徴とする温度センサ。 The temperature sensor according to claim 1,
The temperature sensor, wherein the lead portion and the electric wire are arranged so as to extend in an extending direction of a temperature measuring surface of the heat collecting member. 請求項１又は２に記載の温度センサにおいて、
前記集熱部材は、箱状に形成し、被測定部に当接される測温面に対向する面に、バネ部を一体成形して設けた
ことを特徴とする温度センサ。 The temperature sensor according to claim 1 or 2,
The temperature sensor is characterized in that the heat collecting member is formed in a box shape, and a spring portion is integrally formed on a surface facing a temperature measuring surface abutted on the portion to be measured. 請求項３に記載の温度センサにおいて、
前記集熱部材は、被測定部の上部に横方向から挿入して設置するようにした
ことを特徴とする温度センサ。 The temperature sensor according to claim 3,
The heat collecting member is inserted and installed in the upper part of the part to be measured from the lateral direction. 請求項３又は４に記載の温度センサにおいて、
前記集熱部材に収納される前記サーミスタと、前記リード部と、該リード部と電線を接続する加締め部と、該加締め部の後方の前記電線の一部とを、エポキシ樹脂によって封止してなる
ことを特徴とする温度センサ。 The temperature sensor according to claim 3 or 4,
The thermistor housed in the heat collecting member, the lead portion, a crimped portion connecting the lead portion and the electric wire, and a part of the electric wire behind the crimped portion are sealed with an epoxy resin. A temperature sensor characterized by comprising:
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Cited By (1)

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Publication number Priority date Publication date Assignee Title
US11408775B2 (en) * 2019-05-15 2022-08-09 Yazaki Corporation Attachment structure for temperature sensor

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JP3061620U (en) * 1999-02-23 1999-09-24 ティーディーケイ株式会社 Thermistor for temperature detection
JP2011027576A (en) * 2009-07-27 2011-02-10 Daikin Industries Ltd Resin sealed sensor
JP2012013564A (en) * 2010-07-01 2012-01-19 Auto Network Gijutsu Kenkyusho:Kk Mounting structure of temperature sensor
WO2015132832A1 (en) * 2014-03-07 2015-09-11 株式会社芝浦電子 Temperature sensor and temperature sensor manufacturing method

Patent Citations (4)

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Publication number Priority date Publication date Assignee Title
JP3061620U (en) * 1999-02-23 1999-09-24 ティーディーケイ株式会社 Thermistor for temperature detection
JP2011027576A (en) * 2009-07-27 2011-02-10 Daikin Industries Ltd Resin sealed sensor
JP2012013564A (en) * 2010-07-01 2012-01-19 Auto Network Gijutsu Kenkyusho:Kk Mounting structure of temperature sensor
WO2015132832A1 (en) * 2014-03-07 2015-09-11 株式会社芝浦電子 Temperature sensor and temperature sensor manufacturing method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11408775B2 (en) * 2019-05-15 2022-08-09 Yazaki Corporation Attachment structure for temperature sensor

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