JP2018151349A

JP2018151349A - Mounting structure of temperature sensor

Info

Publication number: JP2018151349A
Application number: JP2017049480A
Authority: JP
Inventors: 福原　聡明; Toshiaki Fukuhara; 聡明福原
Original assignee: Yazaki Corp
Current assignee: Yazaki Corp
Priority date: 2017-03-15
Filing date: 2017-03-15
Publication date: 2018-09-27
Anticipated expiration: 2037-03-15
Also published as: JP6861544B2

Abstract

PROBLEM TO BE SOLVED: To provide a mounting structure of a temperature sensor which can be easily mounted in a temperature sensor housing space of a bus bar module formed in a part to be measured, and which is capable of accurately measuring the temperature of a part to be measured.SOLUTION: The mounting structure includes: a bus bar module 1 mounted in a part to be measured; and a housing case 3 which is formed being bent in an L-like shape with the front end part and is inserted in a temperature sensor insertion space. A temperature detection line 15 includes, in the housing case 3: a thermistor 11; a lead part 12 connected to the thermistor 11; an electrical wire 14 connected to the lead part 12; and a crimp part 13 which connects and crimps the lead part 12 and a conductor of the electrical wire 14, which are stored in the housing case 3 along the shape thereof. The thermistor 11, the lead part 12, the crimp part 13 in the temperature detection line 15 and a part of the electrical wire 14 behind the crimp part 13 are covered by a metal heat collection part 16.SELECTED DRAWING: Figure 2

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に設けられたバスバーモジュールの温度センサ収納空間に取り付けて被測定部の温度検出を行うのに好適な温度センサの取付構造に関する。 The present invention relates to a temperature sensor mounting structure suitable for detecting the temperature of a measured part by attaching it to a temperature sensor storage space of a bus bar module provided in the measured part 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９，図１０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 shown in Patent Document 1 includes a sensor main body 23 in which the periphery of the thermistor is covered with a resin case as shown in FIGS. 9 and 10, and a latch extending from the sensor main 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.

また、従来の温度センサ２１の場合は、被測定部に取り付けられているバスバーモジュールに直接取り付けるようになっている。すなわち、従来の温度センサ２１では、バスバーモジュールに形成されている温度センサを収納する温度センサ挿入空間が、上から取り付ける構造となっているため、バスバーモジュールに取り付けるのに、温度センサ２１を直接挿入して取り付けるようになっている。
このため、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、バネ性のある樹脂を使用した係止アーム２５によって樹脂ケースの集熱板を下方に押圧して測温面が被測定部に当接するようにしてある。
このため従来の温度センサの構造では、バスバーモジュールに形成されている温度センサ挿入空間のスペースに従来の温度センサ２１を取り付けるのがスムーズにいかないという問題点を有している。 Moreover, in the case of the conventional temperature sensor 21, it attaches directly to the bus-bar module attached to the to-be-measured part. That is, in the conventional temperature sensor 21, since the temperature sensor insertion space for accommodating the temperature sensor formed in the bus bar module has a structure attached from above, the temperature sensor 21 is directly inserted to attach to the bus bar module. It is designed to be attached.
For this reason, the conventional temperature sensor 21 is integrally molded 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 main body 23, and is latched using a springy resin. The heat collecting plate of the resin case is pressed downward by the arm 25 so that the temperature measuring surface comes into contact with the portion to be measured.
For this reason, the structure of the conventional temperature sensor has a problem that the conventional temperature sensor 21 cannot be smoothly mounted in the space of the temperature sensor insertion space formed in the bus bar module.

本発明は、上記した事情に鑑みてなされたもので、被測定部に設けられたバスバーモジュールの温度センサ収納空間に簡単に取り付けることができ、被測定部の温度の測定を精度良く行うことのできる温度センサの取付構造を提供することを目的としている。 The present invention has been made in view of the above-described circumstances, and can be easily attached to the temperature sensor storage space of the bus bar module provided in the measured portion, and can accurately measure the temperature of the measured portion. An object of the present invention is to provide a temperature sensor mounting structure that can be used.

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の取付構造は、被測定部に取り付けられるバスバーモジュールの温度センサ挿入空間に、先端部を下方に向けて曲げＬ字状に形成される収納ケースを挿入し、前記収納ケース内にサーミスタと、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を該収納ケースの形状に沿って収納し、前記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 mounting structure of the present invention according to claim 1, which has been made to solve the above-mentioned problem, is bent in a temperature sensor insertion space of a bus bar module to be mounted on a measured part with a tip portion facing downward. The storage case formed in the storage case is inserted, and the thermistor, the lead portion connected to the thermistor, the electric wire connected to the lead portion, and the lead portion and the conductor of the electric wire are connected by caulking in the storage case. A temperature detection line including a crimping portion to be stored along the shape of the storage case, and the thermistor, the lead portion, the crimping portion, and the rear of the crimping portion in the temperature detection line. A part of the electric wire is covered with a metal heat collecting member.

本願請求項１に記載の発明によれば、熱源である被測定部から発せられた熱を測定する温度検知線を収納ケースに挿入し、この収納ケースを被測定部に取り付けられるバスバーモジュールの温度センサ挿入空間に装着するようになっているため、温度センサの取り付けをスムーズに行うことができる。
また、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、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 1 of the present application, the temperature detection line for measuring the heat generated from the part to be measured which is a heat source is inserted into the storage case, and the temperature of the bus bar module attached to the part to be measured. Since the sensor is installed in the sensor insertion space, the temperature sensor can be attached smoothly.
Further, according to the invention described in claim 1, since 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, the lead portion and Since the heat radiated into the air from the caulking portion and a part of the electric wire behind the caulking portion can be suppressed as much as possible, the temperature of the measured portion can be accurately measured.
Furthermore, according to the invention described in claim 1 of the present application, since the metal is used for the heat collecting member, it is possible to efficiently collect heat from the measured portion, and to accurately measure the temperature of the measured portion. It can be carried out.

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の取付構造は、請求項１に記載の集熱部材を、箱状に形成し、その外側面が前記収納ケースの内側面に当接するように形成してあることを特徴としている。 A temperature sensor mounting structure according to a second aspect of the present invention, which has been made to solve the above-mentioned problems, is the heat collecting member according to the first aspect of the present invention formed in a box shape, the outer surface of which is an inner side of the storage case. It is characterized by being formed so as to contact the side surface.

本願請求項２に記載の発明によれば、集熱部材が箱状に形成され、その外側面が収納ケースの内側面に当接するように形成してあるため、被測定部の表面に取り付けられた温度センサが外部からの振動でガタつくのを防止することができる。 According to the second aspect of the present invention, since the heat collecting member is formed in a box shape and its outer surface is formed so as to contact the inner surface of the storage case, it is attached to the surface of the measured part. It is possible to prevent the temperature sensor from rattling due to external vibration.

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の取付構造は、請求項１又は２に記載の収納ケースを、バスバーモジュールの温度センサ挿入空間に横方向から挿入できるようにしたことを特徴としている。 According to a third aspect of the present invention, there is provided the temperature sensor mounting structure according to the third aspect of the present invention so that the storage case according to the first or second aspect can be inserted into the temperature sensor insertion space of the bus bar module from the lateral direction. It is characterized by that.

本願請求項３に記載の発明によれば、バスバーモジュールの温度センサ挿入空間に、温度センサを収納ケースに装着したまま、温度センサ挿入空間の横方向から挿入できるようにしてあるため、バスバーモジュールの温度センサ挿入空間に、温度センサを容易に装着することができる。 According to the third aspect of the present invention, the temperature sensor is inserted into the temperature sensor insertion space of the bus bar module from the lateral direction of the temperature sensor insertion space while being mounted on the storage case. The temperature sensor can be easily mounted in the temperature sensor insertion space.

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の取付構造は、請求項１、２又は３に記載の集熱部材を、収納されるサーミスタと、リード部と、リード部と電線を接続する加締め部と、加締め部の後方の電線の一部とを、エポキシ樹脂系接着剤によって封止してなることを特徴としている。 The temperature sensor mounting structure of the present invention according to claim 4, which has been made to solve the above-described problems, includes a thermistor, a lead portion, and a lead that house the heat collecting member according to claim 1, 2, or 3. A caulking part that connects the part and the electric wire and a part of the electric wire behind the caulking part are sealed with an epoxy resin adhesive.

本願請求項４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 4 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.

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の取付構造は、請求項１、２、３又は４に記載の収納ケースに、バネ部材を装着するとともに、集熱部材のサーミスタ収納部の先端面が収納ケースから露出するように挿入し、収納ケースをバスバーモジュールの温度センサ挿入空間の上方から押圧し、集熱部材の先端の測温面を被測定部の表面に当接させるようにしたことを特徴としている。 The temperature sensor mounting structure of the present invention according to claim 5, which has been made to solve the above-mentioned problems, has a spring member mounted on the storage case according to claim 1, 2, 3, or 4, and a heat collecting member The thermistor storage part is inserted so that the tip end surface is exposed from the storage case, the storage case is pressed from above the temperature sensor insertion space of the bus bar module, and the temperature measurement surface at the tip of the heat collecting member is brought into contact with the surface of the part to be measured. The feature is that they are brought into contact with each other.

本願請求項５に記載の発明によれば、収納ケースにバネ部材を装着し集熱部材のサーミスタ収納部の先端面が収納ケースから露出するように挿入して、バネ部材によって、バスバーモジュールの温度センサ挿入空間に装着した収納ケースを上方から押圧し、集熱部材の先端の測温面を被測定部の表面に当接させるように構成してあるため、バネ部材によるバネ力によって測温面と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。
また、本願請求項５に記載の発明によれば、バネ部材によって収納ケースを上方から押圧して集熱部材の先端の測温面を被測定部の表面に当接させるように構成してあるため、被測定部の表面に取り付けられた温度センサに外部から振動が加えられても、温度センサがガタつくのを防止することができる。 According to the fifth aspect of the present invention, the spring member is attached to the storage case and inserted so that the front end surface of the thermistor storage portion of the heat collecting member is exposed from the storage case. The storage case mounted in the sensor insertion space is pressed from above, and the temperature measuring surface at the tip of the heat collecting member is brought into contact with the surface of the part to be measured. And the measured part can be secured, and the heat generated from the measured part can be collected efficiently.
According to the invention described in claim 5, the storage case is pressed from above by the spring member so that the temperature measuring surface at the tip of the heat collecting member is brought into contact with the surface of the measured part. Therefore, even if a vibration is applied from the outside to the temperature sensor attached to the surface of the part to be measured, the temperature sensor can be prevented from rattling.

本発明によれば、被測定部に設けられたバスバーモジュールの温度センサ収納空間に簡単に取り付けることができ、被測定部の温度の測定を精度良く行うことができる。 ADVANTAGE OF THE INVENTION According to this invention, it can attach easily to the temperature sensor storage space of the bus-bar module provided in the to-be-measured part, and can measure the temperature of a to-be-measured part with a sufficient precision.

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、集熱部材の外側面を収納ケースの内側面に当接することで、被測定部からの受熱量を増やすことができ、被測定部からの集熱を効率よく行うことができ、被測定部の温度の測定を精度良く行うことができる。 Further, according to the present invention, the heat collecting member is formed in a metal box shape, the thermistor, the lead portion, and the crimping portion are housed therein, and the outer surface of the heat collecting member is brought into contact with the inner surface of the storage case. The amount of heat received from the measured part can be increased, the heat collected from the measured part can be efficiently performed, and the temperature of the measured part can be measured with high accuracy.

さらに、本発明によれば、バネ部材によってバスバーモジュールの温度センサ挿入空間に装着した収納ケースを上方から押圧し、集熱部材の先端の測温面を被測定部の表面に当接させるとともに集熱部材の先端の測温面を被測定部の表面に当接させることで、被測定部の温度の測定を精度良く行うことができ、外部からの振動が加わっても被測定部の表面に取り付けられた温度センサがガタつくのを防止することができる。 Further, according to the present invention, the storage case mounted in the temperature sensor insertion space of the bus bar module is pressed from above by the spring member, the temperature measuring surface at the tip of the heat collecting member is brought into contact with the surface of the measured part and the collecting is performed. By bringing the temperature measuring surface at the tip of the thermal member into contact with the surface of the measured part, the temperature of the measured part can be accurately measured, and even if external vibration is applied, the surface of the measured part is It is possible to prevent the attached temperature sensor from rattling.

本発明に係る温度センサをバスバーモジュールに装着した温度センサの取付構造を示す全体斜視図である。It is a whole perspective view which shows the attachment structure of the temperature sensor which attached the temperature sensor which concerns on this invention to the bus-bar module. 図１に図示の温度センサをバスバーモジュールに装着した状態を説明するための断面図である。It is sectional drawing for demonstrating the state which mounted | wore the bus-bar module with the temperature sensor shown in FIG. 図２に図示の温度検知線を収納した収納ケースの全体斜視図である。FIG. 3 is an overall perspective view of a storage case in which the temperature detection line illustrated in FIG. 2 is stored. 図３に図示の温度検知線を収納した収納ケースの分解斜視図である。It is a disassembled perspective view of the storage case which stored the temperature detection line shown in FIG. 図４に図示の集熱部材に温度検知線を収納した状態の断面図である。It is sectional drawing of the state which accommodated the temperature detection line in the heat collecting member shown in FIG. 図３に図示の収納ケースとバネ部材との係合箇所の拡大斜視図である。FIG. 4 is an enlarged perspective view of an engagement portion between the storage case and the spring member illustrated in FIG. 3. 図４に図示の温度検知線を収納した収納ケースの断面図である。It is sectional drawing of the storage case which accommodated the temperature detection line shown in FIG. 図４に図示の集熱部材にエポキシ樹脂系接着剤を封入した状態を示す断面図である。（ａ）は従来の温度センサの正面図、（ｂ）は同側面図である。It is sectional drawing which shows the state which enclosed the epoxy resin-type adhesive agent in the heat collecting member shown in FIG. (A) is a front view of the conventional temperature sensor, (b) is the same side view. （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８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をバスバーモジュールに装着した温度センサの取付構造を示す全体斜視図、図２は図１に図示の温度センサをバスバーモジュールに装着した状態を説明するための断面図、図３は図２に図示の温度検知線を収納した収納ケースの全体斜視図、図４は図３に図示の温度検知線を収納した収納ケースの分解斜視図、図５は図４に図示の集熱部材に温度検知線を収納した状態の断面図、図６は図３に図示の収納ケースとバネ部材との係合箇所の拡大斜視図、図７は図４に図示の温度検知線を収納した収納ケースの断面図、図８は図４に図示の集熱部材にエポキシ樹脂系接着剤を封入した状態を示す断面図である。 1 to 8 of the drawings show an embodiment of a temperature sensor according to the present invention.
FIG. 1 is an overall perspective view showing a temperature sensor mounting structure in which a temperature sensor according to the present invention is mounted on a bus bar module. FIG. 2 is a cross-sectional view for explaining a state in which the temperature sensor shown in FIG. 3 is an overall perspective view of the storage case storing the temperature detection line illustrated in FIG. 2, FIG. 4 is an exploded perspective view of the storage case storing the temperature detection line illustrated in FIG. 3, and FIG. 5 is illustrated in FIG. FIG. 6 is an enlarged perspective view of an engagement portion between the storage case and the spring member shown in FIG. 3, and FIG. 7 is a temperature detection line shown in FIG. 8 is a cross-sectional view showing a state in which an epoxy resin adhesive is sealed in the heat collecting member shown in FIG.

図１には、本発明に係る温度センサをバスバーモジュールに装着した温度センサの取付構造を示す全体斜視図が示されている。
図１において、バスバーモジュール１には、温度センサ２を装着する収納ケース３が装着されている。
バスバーモジュール１は、熱源である被測定部に取り付け、被測定部から発する温度を検出する温度センサ２を装着するためのものである。バスバーモジュール１は、図１に示すように、両側に立設する２つの側壁部材４、５によって空間が形成され、センサ収納部６が形成されている。この２つの側壁部材４、５は、被測定部の上に載置する底壁部７に立設しており、側壁部材４、５の上部が開口されている。 FIG. 1 is an overall perspective view showing a temperature sensor mounting structure in which a temperature sensor according to the present invention is mounted on a bus bar module.
In FIG. 1, a storage case 3 to which a temperature sensor 2 is attached is attached to the bus bar module 1.
The bus bar module 1 is attached to a measured part that is a heat source, and is equipped with a temperature sensor 2 that detects a temperature emitted from the measured part. As shown in FIG. 1, the bus bar module 1 has a space formed by two side wall members 4 and 5 erected on both sides, and a sensor housing portion 6 is formed. The two side wall members 4 and 5 are erected on the bottom wall portion 7 placed on the portion to be measured, and the upper portions of the side wall members 4 and 5 are opened.

また、２つの側壁部材４、５のそれぞれには、後述する収納ケース３の爪３１，３２を係合する窓部４ａ、５ａが設けられている。
また、底壁部７には、図２に示すように、温度センサ２の温度検出部を突出する開口部８が形成されている。
側壁部材４、５によって形成されるセンサ収納部６には、図２に示すように、収納ケース３が収納されており、この収納ケース３には、温度センサ２が収納されている。この２つの側壁部材４、５の開口部８形成側には、背壁部材９が設けられており、２つの側壁部材４、５の間隔がこの背壁部材９の幅によって決定されている。
背壁部材９の上端部には、背壁部材９から延設してセンサ収納部６の上を塞ぐように後述するバネ部材４０を係止する部材である上部係止部材１０が形成されている。 Each of the two side wall members 4 and 5 is provided with windows 4a and 5a for engaging claws 31 and 32 of the storage case 3 described later.
Further, as shown in FIG. 2, the bottom wall portion 7 is formed with an opening portion 8 that protrudes from the temperature detection portion of the temperature sensor 2.
As shown in FIG. 2, the storage case 3 is stored in the sensor storage portion 6 formed by the side wall members 4 and 5, and the temperature sensor 2 is stored in the storage case 3. A back wall member 9 is provided on the side of the opening portion 8 of the two side wall members 4 and 5, and the interval between the two side wall members 4 and 5 is determined by the width of the back wall member 9.
An upper locking member 10 is formed at the upper end of the back wall member 9 and extends from the back wall member 9 to lock a spring member 40 to be described later so as to close the sensor housing 6. Yes.

温度センサ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１１と、このサーミスタ１１に接続されるリード部（リード線）１２と、このリード部（リード線）１２に接続される電線１３と、このリード部（リード線）１２と電線１３の導体を加締めて接続する加締め部１４とによって構成される温度検知線１５によって構成されている。
サーミスタ１１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１１には、リード部（リード線）１２が接続されており、このリード部（リード線）１２は、サーミスタ１１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。 The temperature sensor 2 includes, for example, a thermistor 11 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) 12 connected to the thermistor 11. By means of a temperature detection line 15 constituted by an electric wire 13 connected to the lead portion (lead wire) 12 and a caulking portion 14 for caulking and connecting the lead portion (lead wire) 12 and the conductor of the electric wire 13. It is configured.
The thermistor 11 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, and is a sensor for measuring the temperature by using the change in the electrical resistance with temperature. A lead portion (lead wire) 12 is connected to the thermistor 11, and the lead portion (lead wire) 12 outputs a changed current value or voltage value caused by a change in electrical resistance of the thermistor 11. It has become.

このリード部（リード線）１２のサーミスタ１１の接続されている側と反対側の端部は、電線１３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）１２と電線１３の導体との加締めによって、加締め部１４が形成されている。
この温度検知線１５からなる温度センサ２は、集熱部材１６に収納されるようになっている。 The end of the lead portion (lead wire) 12 opposite to the side to which the thermistor 11 is connected is crimped to the conductor of the electric wire 13 and connected. A caulking portion 14 is formed by caulking the lead portion (lead wire) 12 and the conductor of the electric wire 13.
The temperature sensor 2 including the temperature detection line 15 is accommodated in the heat collecting member 16.

集熱部材１６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、金属製によって形成されている。この集熱部材１６は、図４に示すように断面矩形状の筒体状に形成されており、温度検知線１６のサーミスタ１１を収納するサーミスタ収納部１７を有している。
このサーミスタ収納部１７は、温度検知線１６のサーミスタ１１を収納載置する平坦な底面部１８と、この底面部１８に連成されて立設する４つの側面部１９，２０，２１，２２を有している。この４つの側面部１９，２０，２１，２２の上端部には、上面部２３が形成されており、この上面部２３は開口されている。 The heat collecting member 16 collects heat generated from the part to be measured, which is a heat source, and is made of metal. As shown in FIG. 4, the heat collecting member 16 is formed in a cylindrical shape having a rectangular cross section, and has a thermistor storage portion 17 for storing the thermistor 11 of the temperature detection line 16.
The thermistor storage portion 17 includes a flat bottom surface portion 18 for storing and mounting the thermistor 11 of the temperature detection line 16, and four side surface portions 19, 20, 21, and 22 erected and connected to the bottom surface portion 18. Have. An upper surface portion 23 is formed at the upper end portions of the four side surface portions 19, 20, 21, and 22, and the upper surface portion 23 is opened.

集熱部材１６の底面部１８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。さらに集熱部材１６の４つの側面部１９，２０，２１，２２の内の１つの側面部２１の上端部には、側面部２１に練成して、サーミスタ収納部１７の筒方向に直交する方向に突出する温度検知線収納部２４が設けられている。
この温度検知線収納部２４は、断面コ字状の樋状に形成されている。この温度検知線収納部２４は、上面が開口した状態となっている。この温度検知線収納部２４には、温度検知線１５のリード部（リード線）１２と、加締め部１４と、電線１３が収納されている。
すなわち、本実施例は、サーミスタ１１と、リード部（リード線）１２と、加締め部１４と、電線１３をＬ字構造の金属板の集熱板で構成される集熱部材１６によって、覆っている。 Since the bottom surface portion 18 of the heat collecting member 16 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. Furthermore, the upper end portion of one side surface portion 21 of the four side surface portions 19, 20, 21, and 22 of the heat collecting member 16 is kneaded to the side surface portion 21 and is orthogonal to the cylinder direction of the thermistor storage portion 17. A temperature detection line storage unit 24 protruding in the direction is provided.
The temperature detection line storage unit 24 is formed in a bowl shape having a U-shaped cross section. The temperature detection line storage unit 24 is in an open state on the upper surface. In the temperature detection wire storage portion 24, a lead portion (lead wire) 12 of the temperature detection wire 15, a crimping portion 14, and an electric wire 13 are stored.
That is, in this embodiment, the thermistor 11, the lead part (lead wire) 12, the crimping part 14, and the electric wire 13 are covered with a heat collecting member 16 constituted by a heat collecting plate made of an L-shaped metal plate. ing.

したがって、このように構成される集熱部材１６に収納される温度検知線１５は、リード部（リード線）１２の部分をへの字状に曲げてサーミスタ１１を下向きにして、集熱部材１６のサーミスタ収納部１７の底面部１８にサーミスタ１１の先端が当接するように収納してある。
また、への字状に曲げたリード部（リード線）１２の部分から電線１３寄りのリード部（リード線）１２の一部と、加締め部１４と、電線１３は、温度検知線収納部２４に収納してある。 Therefore, the temperature detection wire 15 accommodated in the heat collecting member 16 configured in this way is bent in the shape of the lead portion (lead wire) 12 so that the thermistor 11 faces downward, and the heat collecting member 16. The thermistor storage part 17 is stored so that the tip of the thermistor 11 abuts on the bottom surface part 18.
In addition, a part of the lead portion (lead wire) 12 near the electric wire 13 from the portion of the lead portion (lead wire) 12 bent in a U-shape, the caulking portion 14, and the electric wire 13 are a temperature detection wire storage portion. 24.

収納ケース３は、２つの側部２５，２６が相対向して設けられている。また、この側部２５，２６は、下方に突出する突出部２７が形成されており、２つの側部２５，２６平面視Ｌ字状に形成されている。
相対向して設けられる２つの側部２５，２６の平坦部２８の下端は、底部２９が練成されている。この収納ケース３の底部２９には、平坦部２８の先端に温度検知線１５の加締め部１４に接続される２本の電線１３をそれぞれに分けて収納するようにするための仕切部３０が設けられている。 The storage case 3 is provided with two side portions 25 and 26 facing each other. Further, the side portions 25 and 26 are formed with a protruding portion 27 protruding downward, and are formed in an L shape in plan view of the two side portions 25 and 26.
A bottom portion 29 is kneaded at the lower ends of the flat portions 28 of the two side portions 25 and 26 provided to face each other. On the bottom 29 of the storage case 3, there is a partition portion 30 for storing the two electric wires 13 connected to the crimping portion 14 of the temperature detection line 15 at the tip of the flat portion 28. Is provided.

また、収納ケース３の側部２５の表面の平坦部２８側には、爪３１が設けられており、収納ケース３の側部２６（図４参照）の表面の平坦部２８側には、爪３２（図示せず）が設けられておいる。この爪３１は、バスバーモジュール１の側壁部材４に設けられている窓部４ａに嵌合し、爪３２（図示せず）は、バスバーモジュール１の側壁部材５（図２参照）に設けられている窓部５ａに嵌合し、収納ケース３をバスバーモジュール１に固定するためのものである。
収納ケース３の２つの側部２５，２６の突出部２７の後側には、２つの側部２５，２６を連結する後側部３３が設けられており、突出部２７の前側には、前側部３４が設けられている。 Further, a claw 31 is provided on the flat portion 28 side of the surface of the side portion 25 of the storage case 3, and a claw is provided on the flat portion 28 side of the surface of the side portion 26 (see FIG. 4) of the storage case 3. 32 (not shown) is provided. The claw 31 is fitted into the window 4a provided on the side wall member 4 of the bus bar module 1, and the claw 32 (not shown) is provided on the side wall member 5 (see FIG. 2) of the bus bar module 1. The housing case 3 is fixed to the bus bar module 1 by fitting into the window portion 5a.
A rear side portion 33 for connecting the two side portions 25, 26 is provided on the rear side of the protruding portion 27 of the two side portions 25, 26 of the storage case 3. A portion 34 is provided.

収納ケース３の側部２５の突出部２７から平坦部２８が開始する近傍の上端部には、バネ部材４０を挟み込むことが可能な突起で構成される上抜け止め部３５が設けられており、収納ケース３の側部２６の突出部２７から平坦部２８が開始する近傍の上端部には、バネ部材４０を挟み込むことが可能な突起で構成される上抜け止め部３６が設けられている。
一方、収納ケース３の側部２５の突出部２７の上端部には、段差部２５ａが形成されており、この段差部２５ａから収納ケース３の側部２５の突出部２７の上端部の先端に向かって立ち上がるテーパ２５ｂが設けられている。また、収納ケース３の側部２６の突出部２７の上端部には、段差部２６ａが形成されており、この段差部２６ａから収納ケース３の側部２６の突出部２７の上端部の先端に向かって立ち上がるテーパ２６ｂが設けられている。 At the upper end portion in the vicinity where the flat portion 28 starts from the protruding portion 27 of the side portion 25 of the storage case 3, an upper retaining portion 35 configured by a protrusion capable of sandwiching the spring member 40 is provided, At the upper end portion in the vicinity of where the flat portion 28 starts from the protruding portion 27 of the side portion 26 of the storage case 3, an upper slip prevention portion 36 configured by a protrusion capable of sandwiching the spring member 40 is provided.
On the other hand, a step portion 25 a is formed at the upper end portion of the protruding portion 27 of the side portion 25 of the storage case 3, and from the step portion 25 a to the tip of the upper end portion of the protruding portion 27 of the side portion 25 of the storage case 3. A taper 25b that rises is provided. Further, a stepped portion 26 a is formed at the upper end portion of the protruding portion 27 of the side portion 26 of the storage case 3, and from this stepped portion 26 a to the tip of the upper end portion of the protruding portion 27 of the side portion 26 of the storage case 3. A taper 26b that rises is provided.

さらに、収納ケース３の側部２５の突出部２７の上端部のテーパ２５ｂの端は、前側部３４に練成され、バネ部材４０が横抜けしないようにバネ部材４０の係止部４５を係合する横抜け止め部２５ｃとなっている。また、収納ケース３の側部２６の突出部２７の上端部のテーパ２６ｂの端は、前側部３４に練成され、バネ部材４０が横抜けしないようにバネ部材４０の係止部４６を係合する横抜け止め部２６ｃとなっている。
温度検知線１５を収納した集熱部材１６を収納ケース３に収納した温度センサ２を、バスバーモジュール１に固定するのには、バネ部材４０を用いて行う。 Furthermore, the end of the taper 25b at the upper end of the protruding portion 27 of the side portion 25 of the storage case 3 is kneaded to the front side portion 34, and engages the locking portion 45 of the spring member 40 so that the spring member 40 does not pass through. It is a side slip-off preventing portion 25c. Further, the end of the taper 26b at the upper end of the protruding portion 27 of the side portion 26 of the storage case 3 is kneaded to the front side portion 34, and the engaging portion 46 of the spring member 40 is engaged so that the spring member 40 does not pass through. It is a side slip-off preventing portion 26c.
A spring member 40 is used to fix the temperature sensor 2 in which the heat collecting member 16 in which the temperature detection line 15 is stored in the storage case 3 is fixed to the bus bar module 1.

バネ部材４０は、図４に示すように、長方形状の板状部材を２つに折って板バネに構成されている。バネ部材４０は、収納ケース３側に取り付ける基部４１と、バスバーモジュール１側に取り付け収納ケース３を下方に押圧する弾性部４２とを略Ｌ字状に形成して構成されている。 As shown in FIG. 4, the spring member 40 is configured as a leaf spring by folding a rectangular plate-like member into two. The spring member 40 is configured by forming a base portion 41 attached to the storage case 3 side and an elastic portion 42 pressing the attachment storage case 3 downward on the bus bar module 1 side in a substantially L shape.

基部４１の両側には、略中央の位置に矩形状の切欠４３，４４が設けられている。また、基部４１の先端は、二股に分かれており、それぞれの先端が下方に鈎の手に曲がって
係止部４５，４６を形成している。
弾性部４２の先端部近傍が、略への字状に曲げられ、先端には、方形状に形成された固定部材４７が設けられている。 On both sides of the base 41, rectangular cutouts 43 and 44 are provided at substantially central positions. Further, the tip of the base portion 41 is divided into two forks, and each tip is bent downward into the hand of the heel to form the locking portions 45 and 46.
The vicinity of the distal end portion of the elastic portion 42 is bent into a substantially U shape, and a fixing member 47 formed in a square shape is provided at the distal end.

次に、図４〜図７を参照して、温度センサ２を集熱部材１６に収納し、この温度センサ２が収納された集熱部材１６を収納ケース３に収納する組み立てについて説明する。
まず、温度検知線１５のサーミスタ１１の先端を集熱部材１６のサーミスタ収納部１７の底面部１８に向けて挿入するとともに、電線１３寄りのリード部（リード線）１２の一部と、加締め部１４と、電線１３の一部によって構成される温度検知線１５を集熱部材１６の温度検知線収納部２４に収納する。
すると、温度検知線１５は、図５に示すように、収納ケース３のサーミスタ収納部１７の底面部１８にサーミスタ１１の先端が当接して収納され、電線１３寄りのリード部（リード線）１２の一部と、加締め部１４と、電線１３の一部は、温度検知線収納部２４に収納される。 Next, an assembly in which the temperature sensor 2 is housed in the heat collecting member 16 and the heat collecting member 16 in which the temperature sensor 2 is housed is housed in the housing case 3 will be described with reference to FIGS.
First, the tip of the thermistor 11 of the temperature detection wire 15 is inserted toward the bottom surface portion 18 of the thermistor storage portion 17 of the heat collecting member 16, and a part of the lead portion (lead wire) 12 near the electric wire 13 and caulking The temperature detection line 15 configured by the part 14 and a part of the electric wire 13 is stored in the temperature detection line storage unit 24 of the heat collecting member 16.
Then, as shown in FIG. 5, the temperature detection wire 15 is stored with the tip of the thermistor 11 coming into contact with the bottom surface portion 18 of the thermistor storage portion 17 of the storage case 3, and the lead portion (lead wire) 12 near the electric wire 13. , The caulking part 14, and a part of the electric wire 13 are accommodated in the temperature detection line accommodating part 24.

このように温度検知線１５が収納された集熱部材１６は、収納ケース３に収納する。この収納ケース３に収納するには、まず、サーミスタ１１が収納されているサーミスタ収納部１７を収納ケース３の突出部２７の内部に挿入する。このサーミスタ収納部１７の突出部２７の内部へ挿入するとともに、電線１３寄りのリード部（リード線）１２の一部と、加締め部１４と、電線１３の一部によって構成される温度検知線１５を収納してある温度検知線収納部２４を収納ケース３の平坦部２８の内部に挿入する。
次に、収納ケース３にバネ部材４０を装着する。バネ部材４０を収納ケース３に装着するに当たっては、まず、バネ部材４０の基部４１を上から装着する。この上から装着するに当たっては、図７に示すように、バネ部材４０の基部４１の先端部に形成される係止部４５，４６を収納ケース３の段差部２５ａ，２６ａを乗り越えた位置に装着する。 Thus, the heat collecting member 16 in which the temperature detection line 15 is stored is stored in the storage case 3. To store in the storage case 3, first, the thermistor storage portion 17 in which the thermistor 11 is stored is inserted into the protruding portion 27 of the storage case 3. While being inserted into the protruding portion 27 of the thermistor storage portion 17, a temperature detection line constituted by a part of the lead portion (lead wire) 12 near the electric wire 13, the caulking portion 14, and a portion of the electric wire 13. 15 is inserted into the flat portion 28 of the storage case 3.
Next, the spring member 40 is attached to the storage case 3. In attaching the spring member 40 to the storage case 3, first, the base 41 of the spring member 40 is attached from above. When mounting from above, as shown in FIG. 7, the locking portions 45 and 46 formed at the tip of the base 41 of the spring member 40 are mounted at positions over the stepped portions 25 a and 26 a of the storage case 3. To do.

このとき、バネ部材４０の基部４１は、略中央の位置に設けられている矩形状の切欠４３，４４に上抜け止め部３５，３６が嵌まり込む状態となる。したがって、バネ部材４０の基部４１は、係止部４５，４６が収納ケース３の側部２５の突出部２７の上端部に乗り上がっていないため、バネ部材４０の基部４１の先端が押し上げられることが無くなり、平坦となっている。
したがって、バネ部材４０を図７に図示の矢印Ａに示すように収納ケース３の突出部２７側に押すと、バネ部材４０は、障害物に当たることが無く、前に押されることになる。すると、バネ部材４０の基部４１の切欠４３，４４にの後方のバネ部材４０の基部４１の両側端部が、上抜け止め部３５，３６と収納ケース３の側部２５の端部とに形成されている隙間に嵌まり込んでいく。 At this time, the base portion 41 of the spring member 40 is in a state in which the upper slip-off preventing portions 35 and 36 are fitted into the rectangular cutouts 43 and 44 provided at a substantially central position. Accordingly, the base 41 of the spring member 40 is pushed up at the tip of the base 41 of the spring member 40 because the locking portions 45 and 46 are not on the upper end of the protrusion 27 of the side 25 of the storage case 3. Disappears and is flat.
Therefore, when the spring member 40 is pushed toward the protruding portion 27 side of the storage case 3 as indicated by an arrow A shown in FIG. 7, the spring member 40 is pushed forward without hitting an obstacle. Then, both side end portions of the base portion 41 of the spring member 40 behind the notches 43 and 44 of the base portion 41 of the spring member 40 are formed at the upper retaining portions 35 and 36 and the end portion of the side portion 25 of the storage case 3. It fits into the gap that has been.

そして、バネ部材４０を収納ケース３の突出部２７側に押すと、バネ部材４０の基部４１の先端に形成されている係止部４５，４６が収納ケース３の側部２５の突出部２７の上端部に形成されるテーパ２５ｂ，２６ｂに当接する。
さらにバネ部材４０を収納ケース３の突出部２７側に押すと、バネ部材４０の基部４１の先端に形成されている係止部４５，４６は、テーパ２５ｂ，２６ｂを上り始める。すると、バネ部材４０の基部４１の先端は、テーパ２５ｂ，２６ｂの傾斜に従って、上がってくる。 When the spring member 40 is pushed toward the protruding portion 27 side of the storage case 3, the locking portions 45 and 46 formed at the tip of the base portion 41 of the spring member 40 are connected to the protruding portion 27 of the side portion 25 of the storage case 3. It abuts on the tapers 25b and 26b formed at the upper end.
When the spring member 40 is further pushed toward the protruding portion 27 side of the storage case 3, the locking portions 45 and 46 formed at the tip of the base portion 41 of the spring member 40 begin to rise up the tapers 25b and 26b. Then, the tip of the base 41 of the spring member 40 rises according to the inclination of the tapers 25b and 26b.

バネ部材４０の基部４１の先端が、テーパ２５ｂ，２６ｂの傾斜に従って、上方向に持ち上げられていくが、基部４１の切欠４３，４４にの後方のバネ部材４０の基部４１の両側端部が上抜け止め部３５，３６と側部２５の端部との間に形成された隙間に嵌まり込んでいくため、バネ部材４０の基部４１の切欠４３，４４形成位置より後方は、持ち上げられていかない。
したがって、バネ部材４０の基部４１の先端は、収納ケース３の上抜け止め部３５，３６のところで上方向に反った状態となって前に進んでいくことになる。すなわち、バネ部材４０の基部４１の先端が、テーパ２５ｂ，２６ｂに乗り上げて上方に持ち上がっても、バネ部材４０の基部４１が上抜け止め部３５，３６から外れること無く前に押し込まれていく。 The tip of the base 41 of the spring member 40 is lifted upward in accordance with the inclination of the tapers 25b and 26b, but both side ends of the base 41 of the spring member 40 behind the notches 43 and 44 of the base 41 are upward. Since it fits into the gap formed between the retaining portions 35, 36 and the end portion of the side portion 25, the rear side of the base member 41 of the spring member 40 is not lifted from the position where the notches 43, 44 are formed. .
Therefore, the tip of the base portion 41 of the spring member 40 moves forward in a state of being warped upward at the upper retaining portions 35 and 36 of the storage case 3. That is, even if the tip of the base portion 41 of the spring member 40 rides on the tapers 25b and 26b and is lifted upward, the base portion 41 of the spring member 40 is pushed forward without detaching from the upper retaining portions 35 and 36.

さらにバネ部材４０を収納ケース３の突出部２７側に押すと、バネ部材４０の基部４１の先端に形成されている係止部４５，４６は、収納ケース３の側部２５の突出部２７の上端部に形成されるテーパ２５ｂ，２６ｂを乗り超えて、横抜け止め部２５ｃ，２６ｃに係合する。このときバネ部材４０の基部４１は、先端の係止部４５，４６が横抜け止め部２５ｃ，２６ｃに嵌まり込み押し上げられることが無くなっているので、平坦となっている。
このようにバネ部材４０が収納ケース３に取り付けると、バネ部材４０の基部４１は、横方向、すなわちバネ部材４０を収納ケース３の平坦部２８側への抜けは、先端の係止部４５，４６の横抜け止め部２５ｃ，２６ｃへの係合で防止される。また、バネ部材４０の基部４１の上方向への抜けは、バネ部材４０の基部４１の両側端部の上抜け止め部３５，３６と側部２５の端部との隙間への嵌合によって防止される。 When the spring member 40 is further pushed toward the protruding portion 27 side of the storage case 3, the locking portions 45 and 46 formed at the tip of the base portion 41 of the spring member 40 are connected to the protruding portion 27 of the side portion 25 of the storage case 3. It gets over the tapers 25b and 26b formed at the upper end portion, and engages with the lateral slip-off preventing portions 25c and 26c. At this time, the base portion 41 of the spring member 40 is flat because the locking portions 45 and 46 at the tip end are not fitted into the lateral slip-off preventing portions 25c and 26c and pushed up.
When the spring member 40 is attached to the storage case 3 in this manner, the base 41 of the spring member 40 is in the lateral direction, that is, when the spring member 40 is pulled out to the flat portion 28 side of the storage case 3, 46 is prevented by engaging with the lateral slip-off preventing portions 25c and 26c. Further, the spring member 40 is prevented from coming off upward by fitting into the gaps between the upper retaining portions 35, 36 on both side ends of the base portion 41 of the spring member 40 and the end portions of the side portions 25. Is done.

このようにバネ部材４０を収納ケース３に装着すると、図６に示すように集熱部材１６のサーミスタ収納部１７にサーミスタ１１が収納され、温度検知線収納部２４に電線１３寄りのリード部（リード線）１２の一部と、加締め部１４と、電線１３の一部が収納される。そして、集熱部材１６は、収納ケース３の２つの側部２５，２６と、後側部３３と、前側部３４の内壁面に当接して設けられている。 When the spring member 40 is thus attached to the storage case 3, the thermistor 11 is stored in the thermistor storage portion 17 of the heat collecting member 16 as shown in FIG. 6, and the lead portion ( A part of the lead wire 12, the caulking part 14, and a part of the electric wire 13 are accommodated. The heat collecting member 16 is provided in contact with the two side portions 25 and 26 of the storage case 3, the rear side portion 33, and the inner wall surface of the front side portion 34.

このように構成された温度センサは、図２に示すように、バスバーモジュール１に装着される。バスバーモジュール１への装着に当たっては、まず、底壁部７に立設する２つの側壁部材４、５によって形成される空間に、収納ケース３を横から挿入する。そして、収納ケース３をスライドさせて、収納ケース３を押し込み、収納ケース３の突出部２７をバスバーモジュール１の開口部８から突出させる。
さらに収納ケース３を横から押し込み、バネ部材４０の弾性部４２の先端に設けられている固定部材４７を下方に押し下げ、バスバーモジュール１の上部係止部材１０の下側に挿入しながら、図２に示すように、収納ケース３をバスバーモジュール１に装着する。
この収納ケース３をバスバーモジュール１に装着したとき、収納ケース３に形成されている爪３１，３２がバスバーモジュール１の側壁部材４に設けられている窓部４ａに嵌合し、収納ケース３がバスバーモジュール１に固定される。 The temperature sensor configured in this way is attached to the bus bar module 1 as shown in FIG. In mounting on the bus bar module 1, first, the storage case 3 is inserted from the side into a space formed by the two side wall members 4, 5 standing on the bottom wall portion 7. Then, the storage case 3 is slid, the storage case 3 is pushed in, and the protruding portion 27 of the storage case 3 is protruded from the opening 8 of the bus bar module 1.
Further, the storage case 3 is pushed in from the side, and the fixing member 47 provided at the tip of the elastic portion 42 of the spring member 40 is pushed down and inserted into the lower side of the upper locking member 10 of the bus bar module 1, while FIG. As shown, the storage case 3 is attached to the bus bar module 1.
When the storage case 3 is attached to the bus bar module 1, the claws 31 and 32 formed on the storage case 3 are fitted into the window 4 a provided on the side wall member 4 of the bus bar module 1. It is fixed to the bus bar module 1.

バネ部材４０の弾性部４２の先端の固定部材４７を下方に押し下げると、図２に図示の矢印Ｂに示すようなバネ部材４０の弾性部４２のバネ反力によって、収納ケース３には、図２に図示の矢印Ｃに示すような押し下げ力が働く。
したがって、収納ケース３の開口部８から突出する収納ケース３の突出部２７に装着された集熱部材１６のサーミスタ収納部１７が、熱源である被測定部（たとえば、電池セル）に押圧されるため、被測定部から発せられた熱を集熱部材１６によって効率よく集めることが可能となる。
また、バネ部材４０の上部とバスバーモジュール１の上部が固定され、収納ケース３をバネ部材４０によって押圧しているため、集熱部材１６のサーミスタ収納部１７に収納されたが、温度センサの上下方向の変位をバネ部材４０によって吸収することができる。 When the fixing member 47 at the tip of the elastic portion 42 of the spring member 40 is pushed downward, the storage case 3 is caused to move into the storage case 3 by the spring reaction force of the elastic portion 42 of the spring member 40 as shown by the arrow B in FIG. A pressing force as shown by an arrow C in FIG.
Therefore, the thermistor storage portion 17 of the heat collecting member 16 mounted on the protruding portion 27 of the storage case 3 protruding from the opening 8 of the storage case 3 is pressed by the measurement target portion (for example, battery cell) that is a heat source. Therefore, the heat generated from the part to be measured can be efficiently collected by the heat collecting member 16.
Further, since the upper part of the spring member 40 and the upper part of the bus bar module 1 are fixed and the storage case 3 is pressed by the spring member 40, it is stored in the thermistor storage part 17 of the heat collecting member 16. The displacement in the direction can be absorbed by the spring member 40.

また、集熱部材１６は、図８に示すように、温度検知線１５のサーミスタ１１と、リード部（リード線）１２と、リード部（リード線）１２と電線１４の導体との加締め部１３と、電線１４の先端の一部との上が、エポキシ樹脂系接着剤５０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５０によって封止することで温度検知線１５は、集熱部材１６内に確実に収納される。
すなわち、集熱部材１６は、エポキシ樹脂系接着剤５０の封止によって、底面部１８と、４つの側面部１９，２０，２１，２２のサーミスタ収納部１７にサーミスタ１１が強固に接着される。また、温度検知線収納部２４のリード部（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の先端の一部が樹脂系接着剤５０によって封止されているため、温度検知線収納部２４が、集熱部材１６に強固に接着される。 Further, as shown in FIG. 8, the heat collecting member 16 includes a thermistor 11 of the temperature detection wire 15, a lead portion (lead wire) 12, and a crimped portion of the lead portion (lead wire) 12 and the conductor of the electric wire 14. 13 and a part of the tip of the electric wire 14 are sealed with an epoxy resin adhesive 50. Thus, the temperature detection line 15 is reliably accommodated in the heat collecting member 16 by sealing with the epoxy resin adhesive 50.
That is, in the heat collecting member 16, the thermistor 11 is firmly bonded to the bottom surface portion 18 and the thermistor storage portions 17 of the four side surface portions 19, 20, 21, 22 by sealing with the epoxy resin adhesive 50. Further, the lead portion (lead wire) 5 of the temperature detection wire storage portion 24, the crimping portion 7 between 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 are resin adhesive. Since it is sealed by 50, the temperature detection line storage portion 24 is firmly bonded to the heat collecting member 16.

エポキシ樹脂系接着剤５０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５０は、温度検知線１５のサーミスタ１１と、リード部（リード線）１２と、リード部（リード線）１２と電線１４の導体との加締め部１３と、電線１４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５０が温度検知線収納部２４の側面部の上端より低く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５０の封止によって、温度検知線１５は、集熱部材１６に固定される。 The epoxy resin adhesive 50 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 50 includes a thermistor 11 of the temperature detection wire 15, a lead portion (lead wire) 12, a crimp portion 13 of the lead portion (lead wire) 12 and the conductor of the electric wire 14, and the electric wire 14. A part of the tip is enclosed so as to be filled. In the present embodiment, the epoxy resin adhesive 50 is sealed so as to be lower than the upper end of the side surface portion of the temperature detection line storage unit 24.
Therefore, the temperature detection line 15 is fixed to the heat collecting member 16 by sealing the epoxy resin adhesive 50.

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……………………バスバーモジュール
２……………………温度センサ
３……………………収納ケース
４，５………………側壁部材
４ａ、５ａ…………窓部
６……………………センサ収納部
７……………………底壁部
８……………………開口部
９……………………背壁部材
１０…………………上部係止部材
１１…………………サーミスタ
１２…………………リード部（リード線）
１３…………………電線
１４…………………加締め部
１５…………………温度検知線
１６…………………集熱部材
１７…………………サーミスタ収納部
１８…………………底面部
１９，２０，２１，２２……………側面部
２３…………………上面部
２４…………………温度検知線収納部
２５，２６…………側部
２５ａ，２６ａ……段差部
２５ｂ，２６ｂ……テーパ
２５ｃ，２６ｃ……横抜け止め部
２７…………………突出部
２８…………………平坦部
２９…………………底部
３０…………………仕切部
３１，３２…………爪
３３…………………後側部
３４…………………前側部
３５，３６…………上抜け止め部
４０…………………バネ部材
４１…………………基部
４２…………………弾性部
４３，４４…………切欠
４５，４６…………係止部
４７…………………固定部材
５０…………………エポキシ樹脂系接着剤 1 …………………… Bus bar module 2 …………………… Temperature sensor 3 …………………… Storage case 4, 5 ……………… Side wall member 4a, 5a ……… ... Window 6 …………………… Sensor housing 7 …………………… Bottom wall 8 …………………… Opening 9 …………………… Back wall member 10 ………………… Upper locking member 11 ………………… Thermistor 12 ………………… Lead part (lead wire)
13 ………………… Wire 14 ………………… Clamping part 15 ………………… Temperature detection wire 16 ………………… Heat collecting member 17 ………………… Thermistor storage section 18 ..................... Bottom section 19, 20, 21, 22, ............... Side section 23 ............... Top section 24 ..................... Temperature detection line storage section 25, 26 ………… Side part 25a, 26a …… Step part 25b, 26b …… Taper 25c, 26c …… Side-off prevention part 27 ……………… Projection part 28 ………………… Flat Section 29 ............... Bottom 30 ............... Partition 31, 32 ............ Claw 33 …………………… Rear side 34 ………………… Front side 35 , 36 ………… Upper stopper 40 ………………… Spring member 41 ………………… Base 42 ………………… Elastic part 43, 44 ………… Notch 45,4 6 ………… Locking part 47 ………………… Fixing member 50 …………………… Epoxy resin adhesive

Claims

A storage case formed in a bent L shape with the tip portion directed downward is inserted into the temperature sensor insertion space of the bus bar module attached to the part to be measured, and the thermistor and the thermistor are connected to the storage case. A temperature detection line comprising a lead part, a wire connected to the lead part, and a crimping part that crimps and connects the lead part and the conductor of the wire is stored along the shape of the storage case, Mounting of the temperature sensor, wherein the thermistor, the lead portion, the crimp portion, and a part of the electric wire behind the crimp portion are covered with a metal heat collecting member in the temperature detection line. Construction.

In the temperature sensor mounting structure according to claim 1,
The temperature sensor mounting structure, wherein the heat collecting member is formed in a box shape, and an outer side surface of the heat collecting member is in contact with an inner side surface of the storage case.

In the temperature sensor mounting structure according to claim 1 or 2,
The temperature sensor mounting structure, wherein the storage case can be inserted into the temperature sensor insertion space of the bus bar module from a lateral direction.

In the temperature sensor mounting structure according to claim 1, 2, or 3,
An epoxy resin-based adhesive comprising: the thermistor housed in the heat collecting member; the lead portion; a caulking portion that connects the lead portion and the electric wire; and a part of the electric wire behind the caulking portion. The temperature sensor mounting structure is characterized in that it is sealed.

In the temperature sensor mounting structure according to claim 1, 2, 3, or 4,
A spring member is attached to the storage case, and inserted so that the front end surface of the thermistor storage portion of the heat collecting member is exposed from the storage case,
The temperature sensor is characterized in that the storage case is pressed from above the temperature sensor insertion space of the bus bar module, and the temperature measuring surface at the tip of the heat collecting member is brought into contact with the surface of the measured part. Mounting structure.