JP2012154901A - Temperature sensor - Google Patents

Temperature sensor Download PDF

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JP2012154901A
JP2012154901A JP2011016802A JP2011016802A JP2012154901A JP 2012154901 A JP2012154901 A JP 2012154901A JP 2011016802 A JP2011016802 A JP 2011016802A JP 2011016802 A JP2011016802 A JP 2011016802A JP 2012154901 A JP2012154901 A JP 2012154901A
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arm
sensor
elastic member
measured
temperature sensor
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JP5611071B2 (en
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Haruhiko Yoshida
晴彦 吉田
Kazuyuki Matsunaga
和之 松永
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Yazaki Corp
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

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Abstract

PROBLEM TO BE SOLVED: To provide a temperature sensor capable of securing stable temperature measurement performance for a part to be measured, by improving workability when the temperature sensor is attached to the part to be measured, and improving positioning accuracy of the temperature sensor to the part to be measured.SOLUTION: A temperature sensor 21 comprises: a sensor body 23 having a temperature measurement surface 23c, a tip of which is brought into contact with a part to be measured; an arm-shaped elastic member 25 extended from the sensor body 23; and a resin module component 30 which bears the sensor body 23 via the arm-shaped elastic member 25 and which is attached to the part to be measured so that the temperature measurement surface 23c comes into close contact with the part to be measured by elastic restoring force of the arm-shaped elastic member 25. The sensor body 23 and the arm-shaped elastic member 25 are integrally molded with the module component 30 by insert molding.

Description

本発明は、例えば車載バッテリーのセルの温度検出等に用いて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 cell of an in-vehicle battery.

通常、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、複数のバッテリーセルを直列に接続して、所定の出力電圧を得るようにしている。そして、これらのバッテリーセルの過充電、過放電を防止するために、温度センサをバッテリーセルに装着して、バッテリーセルの温度を監視することが提案されている。   Usually, a battery mounted on a hybrid vehicle or an electric vehicle has a plurality of battery cells connected in series to obtain a predetermined output voltage. In order to prevent overcharge and overdischarge of these battery cells, it has been proposed to attach a temperature sensor to the battery cell and monitor the temperature of the battery cell.

図４及び図５はバッテリーセルの温度監視に使用される従来の温度センサとその取付構造を示したものである。   4 and 5 show a conventional temperature sensor used for monitoring the temperature of a battery cell and its mounting structure.

図４に示した温度センサ１及びその取付構造は下記特許文献１に開示されたものであり、図５に示した温度センサ２及びその取付構造は下記特許文献２に開示されたものである。   The temperature sensor 1 and its mounting structure shown in FIG. 4 are disclosed in Patent Document 1 below, and the temperature sensor 2 and its mounting structure shown in FIG. 5 are disclosed in Patent Document 2 below.

図４及び図５に示した温度センサ１，２は、いずれも、サーミスタの周囲を樹脂で覆ったセンサ本体５と、センサ本体５の外周部から延出したアーム状弾性部材６と、を備えている。   Each of the temperature sensors 1 and 2 shown in FIGS. 4 and 5 includes a sensor body 5 in which the periphery of the thermistor is covered with a resin, and an arm-like elastic member 6 extending from the outer periphery of the sensor body 5. ing.

センサ本体５は、図４及び図５に示すように、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５ａが設けられている。また、センサ本体５の後端には、本体内のサーミスタに接続したリード線９が引き出されており、該リード線９が温度測定装置又は温度測定回路基板に接続される。   As shown in FIGS. 4 and 5, the sensor main body 5 is provided with a flat temperature measuring surface 5 a that abuts on the surface 8 a of the battery cell 8 that is a measurement target. Further, a lead wire 9 connected to a thermistor in the main body is drawn out at the rear end of the sensor main body 5, and the lead wire 9 is connected to a temperature measuring device or a temperature measuring circuit board.

アーム状弾性部材６は、センサ本体５の側方に延出して設けられていて、その先端部である自由端６ａが、バッテリーセル８の表面８ａに対して定位置に組み付けられる樹脂製のモジュール部品１０のセンサ係止部１１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成される。   The arm-like elastic member 6 is provided so as to extend to the side of the sensor body 5, and a free end 6 a that is a tip portion thereof is assembled in a fixed position with respect to the surface 8 a of the battery cell 8. By being locked to the sensor locking portion 11 of the component 10, positioning with respect to the battery cell 8 is performed.

上記従来の温度センサ１，２の場合、アーム状弾性部材６の基端６ｃはセンサ本体５にリジッドに（硬直に）結合されており、アーム状弾性部材６の中間部には自由端６ａの変位を助ける折り曲げ部６ｂが設けられている。   In the case of the conventional temperature sensors 1 and 2, the base end 6 c of the arm-shaped elastic member 6 is rigidly (rigidly) coupled to the sensor body 5, and an intermediate portion of the arm-shaped elastic member 6 has a free end 6 a. A bent portion 6b that assists displacement is provided.

アーム状弾性部材６の自由端６ａを係止するセンサ係止部１１は、自由端６ａに被測定部であるバッテリーセル８の表面８ａ側への押圧荷重を作用させて、アーム状弾性部材６に弾性変形を生じさせる。このアーム状弾性部材６の弾性復元力が、測温面５ａと被測定部である表面８ａとの密着状態を確保する。   The sensor locking portion 11 that locks the free end 6a of the arm-shaped elastic member 6 applies a pressing load to the surface 8a side of the battery cell 8 that is the measured portion, to the free end 6a, so that the arm-shaped elastic member 6 is operated. Causes elastic deformation. The elastic restoring force of the arm-like elastic member 6 ensures a close contact state between the temperature measuring surface 5a and the surface 8a that is the portion to be measured.

特開２００５−１８９０８０号公報JP 2005-189080 A 特開２００８−３０４２９５号公報JP 2008-304295 A

ところが、前述した従来の温度センサ１，２はバッテリーセル８に組み付けられるモジュール部品１０とは別体であり、温度センサ１，２をバッテリーセル８に組み付けるには、予め、温度センサ１，２をモジュール部品１０のセンサ係止部１１に取り付ける作業が必要で、組立作業性が悪いという問題があった。   However, the above-described conventional temperature sensors 1 and 2 are separate from the module component 10 assembled to the battery cell 8, and in order to assemble the temperature sensors 1 and 2 to the battery cell 8, the temperature sensors 1 and 2 are installed in advance. There was a problem that the work for attaching to the sensor locking portion 11 of the module component 10 was necessary, and the assembling workability was poor.

また、温度センサ１，２とモジュール部品１０との間の組立誤差が、バッテリーセル８に対する温度センサ１，２の位置決め精度にばらつきを招き、その結果、バッテリーセル８に対する温度測定性能にばらつきを招くおそれがあった。   Further, an assembly error between the temperature sensors 1 and 2 and the module component 10 causes variations in positioning accuracy of the temperature sensors 1 and 2 with respect to the battery cell 8, and as a result, causes variations in temperature measurement performance with respect to the battery cell 8. There was a fear.

そこで、本発明の目的は、上記課題を解消することに係り、温度センサを被測定部に組み付ける際の作業性を向上させると共に、被測定部に対する温度センサの位置決め精度を向上させて、被測定部に対して安定した温度測定性能を確保することができる温度センサを提供することにある。   Accordingly, an object of the present invention is to solve the above-mentioned problems, improve the workability when assembling the temperature sensor to the part to be measured, and improve the positioning accuracy of the temperature sensor with respect to the part to be measured. An object of the present invention is to provide a temperature sensor that can ensure stable temperature measurement performance for a part.

本発明の前述した目的は、下記の構成により達成される。
（１)被測定部に当接される測温面を先端に有したセンサ本体と、該センサ本体から延出したアーム状弾性部材と、該アーム状弾性部材を介して前記センサ本体を支承すると共に前記測温面が前記アーム状弾性部材の弾性復元力によって前記被測定部に密着するように前記被測定部に取り付けられる樹脂製のモジュール部品と、を備え、
前記センサ本体及び前記アーム状弾性部材が、インサート成形により前記モジュール部品に一体成形されたことを特徴とする温度センサ。 The above-described object of the present invention is achieved by the following configuration.
(1) A sensor main body having a temperature measuring surface in contact with a measured portion at the tip, an arm-like elastic member extending from the sensor main body, and the sensor main body is supported via the arm-like elastic member. And a module part made of resin attached to the measured part so that the temperature measuring surface is in close contact with the measured part by the elastic restoring force of the arm-like elastic member,
The temperature sensor, wherein the sensor main body and the arm-like elastic member are integrally formed with the module component by insert molding.

上記（１）の構成によれば、センサ本体及びアーム状弾性部材は、インサート成形によりモジュール部品に一体成形されているため、モジュール部品に対する組み付け作業が必要とならない。センサ本体を被測定部に取り付ける際の作業は、モジュール部品を被測定部に取り付ける作業だけで済むため、温度センサを被測定部に組み付ける際の作業工程を低減させて、作業性を向上させることができる。   According to the configuration of (1) above, the sensor main body and the arm-like elastic member are integrally formed with the module component by insert molding, and therefore, an assembling operation for the module component is not required. Since the work for attaching the sensor body to the measured part is only the work for attaching the module parts to the measured part, the work process when assembling the temperature sensor to the measured part is reduced and workability is improved. Can do.

また、センサ本体及びアーム状弾性部材がインサート成形によりモジュール部品に一体成形されるため、別体の部品相互を組み立てる際の組立誤差が生じない。そのため、被測定部に対する温度センサの位置決め精度を向上させて、被測定部に対して安定した温度測定性能を確保することができる。   Further, since the sensor main body and the arm-like elastic member are integrally formed with the module component by insert molding, no assembly error occurs when assembling separate components. For this reason, it is possible to improve the positioning accuracy of the temperature sensor with respect to the part to be measured and ensure stable temperature measurement performance for the part to be measured.

本発明による温度センサによれば、センサ本体及びアーム状弾性部材は、インサート成形によりモジュール部品に一体成形されているため、モジュール部品に対する組み付け作業が必要とならない。また、センサ本体とモジュール部品とが別体の場合に発生する組立誤差も生じない。   According to the temperature sensor of the present invention, since the sensor main body and the arm-like elastic member are integrally formed with the module component by insert molding, an assembling operation for the module component is not required. Further, there is no assembly error that occurs when the sensor body and the module parts are separate.

そのため、温度センサを被測定部に組み付ける際の作業工程を低減させて、作業性を向上させることができる。また、被測定部に対する温度センサの位置決め精度を向上させて、被測定部に対して安定した温度測定性能を確保することができる。   Therefore, the work process when assembling the temperature sensor to the part to be measured can be reduced, and workability can be improved. In addition, it is possible to improve the positioning accuracy of the temperature sensor with respect to the measured part and to ensure stable temperature measurement performance for the measured part.

本発明に係る温度センサの一実施形態のバッテリーに取り付けられた状態の斜視図である。It is a perspective view of the state attached to the battery of one Embodiment of the temperature sensor which concerns on this invention. 図１に示した温度センサの要部の拡大図である。It is an enlarged view of the principal part of the temperature sensor shown in FIG. 図２に示した温度センサのバッテリーへの取り付け状態を示す縦断面図である。It is a longitudinal cross-sectional view which shows the attachment state to the battery of the temperature sensor shown in FIG. （ａ）は従来の温度センサの一部断面した側面図、（ｂ）は（ａ）に示した温度センサの取付構造の縦断面図である。(A) is the side view which carried out the partial cross section of the conventional temperature sensor, (b) is a longitudinal cross-sectional view of the attachment structure of the temperature sensor shown to (a). （ａ）は従来の別の温度センサの斜視図、（ｂ）は（ａ）に示した温度センサの取付構造の説明図である。(A) is a perspective view of another conventional temperature sensor, (b) is explanatory drawing of the attachment structure of the temperature sensor shown to (a).

以下、本発明に係る温度センサの好適な実施形態について、図面を参照して詳細に説明する。   DESCRIPTION OF EMBODIMENTS Hereinafter, a preferred embodiment of a temperature sensor according to the present invention will be described in detail with reference to the drawings.

図１〜図３は、本発明に係る温度センサの一実施形態を示したもので、図１は本発明に係る温度センサの一実施形態のバッテリーに取り付けられた状態の斜視図、図２は図１に示した温度センサの要部の拡大図、図３は図２に示した温度センサのバッテリーへの取り付け状態を示す縦断面図である。   1 to 3 show an embodiment of a temperature sensor according to the present invention, FIG. 1 is a perspective view of the temperature sensor according to an embodiment of the present invention attached to a battery, and FIG. FIG. 3 is an enlarged view of a main part of the temperature sensor shown in FIG. 1, and FIG. 3 is a longitudinal sectional view showing a state where the temperature sensor shown in FIG.

この一実施形態の温度センサ２１は、サーミスタ２３ａの周囲を樹脂ケース２３ｂ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アーム状弾性部材２５と、アーム状弾性部材２５を介してセンサ本体２３を支承する樹脂製のモジュール部品３０と、を備えている。   The temperature sensor 21 of this embodiment includes a sensor body 23 in which the periphery of the thermistor 23a is covered with a resin case 23b, an arm-like elastic member 25 extending from the sensor body 23 to the side thereof, and an arm-like elastic member 25. And a module part 30 made of resin for supporting the sensor main body 23 via the.

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２３ｃが設けられている。また、センサ本体２３の後端には、本体内のサーミスタ２３ａに接続したリード線９が引き出されており、該リード線９がケーブル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る。   The sensor main body 23 is provided with a flat temperature measuring surface 23c that abuts against the surface 8a of the battery cell 8 that is a measured portion at the tip. Further, a lead wire 9 connected to the thermistor 23a in the main body 23 is drawn out at the rear end of the sensor main body 23, and the lead wire 9 is connected to the temperature measuring device or the temperature measuring circuit board via the cable 26. .

アーム状弾性部材２５は、センサ本体２３の両側に延出して設けられていて、その先端部２５ａは、モジュール部品３０に一体に繋がっている。   The arm-like elastic member 25 is provided so as to extend on both sides of the sensor main body 23, and the tip end portion 25 a is integrally connected to the module component 30.

本実施形態のアーム状弾性部材２５は、略Ｓ字状に蛇行したアームで、蛇行部の弾性変形により、センサ本体２３を、表面８ａに向かって進退可能に弾性支持する。   The arm-like elastic member 25 of the present embodiment is an arm meandering in a substantially S shape, and elastically supports the sensor main body 23 so as to advance and retreat toward the surface 8a by elastic deformation of the meandering portion.

モジュール部品３０は、バッテリーセル８上に他の回路部品を組み付けるための樹脂製部品である。このモジュール部品３０は、センサ本体２３の測温面２３ｃがアーム状弾性部材２５の弾性復元力によってバッテリーセル８の表面８ａに密着するようにバッテリーセル８に取り付けられる。   The module component 30 is a resin component for assembling other circuit components on the battery cell 8. The module component 30 is attached to the battery cell 8 so that the temperature measuring surface 23c of the sensor body 23 is in close contact with the surface 8a of the battery cell 8 by the elastic restoring force of the arm-like elastic member 25.

本実施形態の温度センサ２１の場合、センサ本体２３及びアーム状弾性部材２５が、インサート成形によりモジュール部品３０に一体成形される。   In the case of the temperature sensor 21 of the present embodiment, the sensor main body 23 and the arm-like elastic member 25 are integrally formed on the module component 30 by insert molding.

以上に説明した本実施形態の温度センサ２１の場合、センサ本体２３及びアーム状弾性部材２５は、インサート成形によりモジュール部品３０に一体成形されているため、モジュール部品３０に対する組付作業が必要とならない。また、センサ本体２３を被測定部であるバッテリーセル８に取り付ける際の作業は、モジュール部品３０をバッテリーセル８に取り付ける作業だけで済むため、温度センサ２１をバッテリーセル８に組み付ける際の作業工程を低減させて、作業性を向上させることができる。   In the case of the temperature sensor 21 of the present embodiment described above, the sensor main body 23 and the arm-like elastic member 25 are integrally formed with the module component 30 by insert molding, so that an assembly operation for the module component 30 is not required. . Further, since the work for attaching the sensor main body 23 to the battery cell 8 as the part to be measured only needs to attach the module component 30 to the battery cell 8, the work process for assembling the temperature sensor 21 to the battery cell 8 is performed. The workability can be improved by reducing the amount.

また、センサ本体２３及びアーム状弾性部材２５がインサート成形によりモジュール部品３０に一体成形されるため、別体の部品相互を組み立てる際の組立誤差が生じない。そのため、バッテリーセル８に対する温度センサ２１の位置決め精度を向上させて、バッテリーセル８に対して安定した温度測定性能を確保することができる。   Further, since the sensor main body 23 and the arm-shaped elastic member 25 are integrally formed with the module component 30 by insert molding, no assembly error occurs when assembling separate components. Therefore, the positioning accuracy of the temperature sensor 21 with respect to the battery cell 8 can be improved, and stable temperature measurement performance for the battery cell 8 can be ensured.

なお、本発明の温度センサの用途は、上記一実施形態に示したバッテリーセル８の温度測定に限らない。本発明の温度センサは、バッテリー以外の各種の機器や部材の温度測定に利用することが可能である。   The application of the temperature sensor of the present invention is not limited to the temperature measurement of the battery cell 8 shown in the above embodiment. The temperature sensor of the present invention can be used for temperature measurement of various devices and members other than batteries.

８ バッテリーセル
８ａ 表面（被測定部）
２１ 温度センサ
２３ センサ本体
２３ａ サーミスタ
２３ｂ 樹脂ケース
２３ｃ 測温面
２５ アーム状弾性部材
３０ モジュール部品 8 Battery cell 8a Surface (measured part)
DESCRIPTION OF SYMBOLS 21 Temperature sensor 23 Sensor main body 23a Thermistor 23b Resin case 23c Temperature measuring surface 25 Arm-shaped elastic member 30 Module components

Claims (1)

被測定部に当接される測温面を先端に有したセンサ本体と、該センサ本体から延出したアーム状弾性部材と、該アーム状弾性部材を介して前記センサ本体を支承すると共に前記測温面が前記アーム状弾性部材の弾性復元力によって前記被測定部に密着するように前記被測定部に取り付けられる樹脂製のモジュール部品と、を備え、
前記センサ本体及び前記アーム状弾性部材が、インサート成形により前記モジュール部品に一体成形されたことを特徴とする温度センサ。 A sensor body having a temperature measuring surface in contact with the measurement target at the tip, an arm-like elastic member extending from the sensor body, and supporting the sensor body via the arm-like elastic member and the measurement A module part made of resin attached to the measured part so that the warm surface is in close contact with the measured part by the elastic restoring force of the arm-like elastic member,
The temperature sensor, wherein the sensor main body and the arm-like elastic member are integrally formed with the module component by insert molding.
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US9543711B2 (en) 2013-03-27 2017-01-10 Autonetworks Technologies, Ltd. Wiring module
US9936594B2 (en) 2014-04-11 2018-04-03 Autonetworks Technologies, Ltd. Wiring module
JP2023504802A (en) * 2020-08-11 2023-02-07 エルジー エナジー ソリューション リミテッド BATTERY MODULE WITH IMPROVED ASSEMBILITY AND BATTERY PACK INCLUDING THE SAME

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