JP2014044850A - Attachment structure for temperature sensor - Google Patents

Attachment structure for temperature sensor Download PDF

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JP2014044850A
JP2014044850A JP2012186157A JP2012186157A JP2014044850A JP 2014044850 A JP2014044850 A JP 2014044850A JP 2012186157 A JP2012186157 A JP 2012186157A JP 2012186157 A JP2012186157 A JP 2012186157A JP 2014044850 A JP2014044850 A JP 2014044850A
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temperature sensor
unit cell
holding member
holding
temperature
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JP5915460B2 (en
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Shinichi Takase
慎一 高瀬
Junichi Wakayama
淳一 若山
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Sumitomo Wiring Systems Ltd
AutoNetworks Technologies Ltd
Sumitomo Electric Industries Ltd
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Sumitomo Wiring Systems Ltd
AutoNetworks Technologies Ltd
Sumitomo Electric Industries Ltd
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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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • 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
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/62—Hybrid vehicles

Abstract

PROBLEM TO BE SOLVED: To provide an attachment structure for a temperature sensor that has an excellent workability.SOLUTION: Provided is an attachment structure for attaching a temperature sensor 35 to a battery module M having a single battery group 11 configured by arranging a plurality of single batteries 12. In a holding member 30 covering at least a single battery 12 that is a target of temperature detection by the temperature sensor 35 among the plurality of single batteries 12, having an opening 31 at the single battery 12 side, and holding the temperature sensor 35, the temperature sensor 35 is attached so that energization becomes possible in a direction contacting with the single battery 12 that is the target of temperature detection.

Description

本発明は、温度センサの取付構造に関する。   The present invention relates to a temperature sensor mounting structure.

電気自動車やハイブリッド車用の電池モジュールにおいては、出力を大きくするために多数の単電池が横並びに接続されている。隣り合う単電池の電極端子間はバスバーなどの接続部材で接続することにより複数の単電池が直列や並列に接続されるようになっている。   In battery modules for electric vehicles and hybrid vehicles, a large number of single cells are connected side by side in order to increase the output. A plurality of unit cells are connected in series or in parallel by connecting electrode terminals of adjacent unit cells with a connecting member such as a bus bar.

ところで、電池モジュールを高温状態で使用すると寿命が低下することがあり、リチウムイオン電池などを複数個接続してなる電池モジュールでは、充電の際に高温になることにより発火することがある。そこで、このような事態を避けるべく、電池モジュールには電池温度を検知するための温度センサが取り付けられる（例えば特許文献１を参照）。   By the way, if the battery module is used in a high temperature state, the life may be reduced, and a battery module formed by connecting a plurality of lithium ion batteries or the like may ignite due to a high temperature during charging. Therefore, in order to avoid such a situation, a temperature sensor for detecting the battery temperature is attached to the battery module (see, for example, Patent Document 1).

特許第４５２８６１２号公報Japanese Patent No. 4528612

上記特許文献１においては、箱体の上面側において形成された開口部から温度センサを取り付けて、箱体の内部に収容されているバッテリに温度センサを接触させるような構造が提案されている。   Patent Document 1 proposes a structure in which a temperature sensor is attached from an opening formed on the upper surface side of a box, and the temperature sensor is brought into contact with a battery housed in the box.

このような構造では、温度センサを取り付けるために形成された開口部において、温度センサおよび温度センサに取り付けられているリード線などの導体が露出状態に配置されるため、これらを保護するためにも開口部を覆うカバーを別途用意して、取り付ける作業が必要であった。   In such a structure, since the temperature sensor and a conductor such as a lead wire attached to the temperature sensor are disposed in an exposed state in the opening formed to attach the temperature sensor, the conductor is also protected to protect them. It was necessary to prepare and attach a cover to cover the opening.

本発明は上記のような事情に基づいて完成されたものであって、作業性に優れた温度センサの取付構造を提供することを目的とする。   The present invention has been completed based on the above circumstances, and an object thereof is to provide a temperature sensor mounting structure excellent in workability.

上記課題を解決するものとして本発明は、複数の単電池を並べてなる単電池群を有する電池モジュールに温度センサを取り付ける温度センサの取付構造であって、複数の前記単電池のうち、少なくとも前記温度センサによる温度検知の対象とされる単電池を覆うとともに当該単電池側に開口部を有し、前記温度センサを保持する保持部材において、前記温度センサは、前記温度検知の対象とされる単電池と接触する方向に付勢可能に取り付けられている温度センサの取付構造である。   In order to solve the above problems, the present invention provides a temperature sensor mounting structure in which a temperature sensor is attached to a battery module having a unit cell group in which a plurality of unit cells are arranged, and at least the temperature among the plurality of unit cells. In the holding member that covers the unit cell that is a target of temperature detection by the sensor and that has an opening on the unit cell side and holds the temperature sensor, the temperature sensor is a unit cell that is the target of the temperature detection It is the attachment structure of the temperature sensor attached so that a biasing is possible in the direction which contacts.

本発明においては、保持部材の開口部から温度センサを取り付けておき、この保持部材を、開口部を単電池側に向けて検知対象とされる単電池を覆うように配置すると、保持部材に取り付けられた温度センサが、検知対象とされる単電池と接触する方向に付勢可能となる。   In the present invention, the temperature sensor is attached from the opening of the holding member, and the holding member is attached to the holding member when the opening is arranged so as to cover the unit cell to be detected with the opening facing the unit cell. The temperature sensor thus made can be urged in a direction in contact with the single cell to be detected.

本発明において、保持部材は単電池側に開口部を有しているので、単電池とは反対側を閉じた構成とすることができ、開口部を覆うカバーは不要である。したがって、本発明によれば、温度センサを取り付けた保持部材を、検知対象とされる単電池を覆うように配置するだけで温度センサが保護された状態に取り付けられるので、作業性に優れた温度センサの取付構造を提供することができる。   In the present invention, since the holding member has an opening on the unit cell side, the holding member can be configured to be closed on the side opposite to the unit cell, and a cover for covering the opening is unnecessary. Therefore, according to the present invention, the temperature sensor is attached in a state where the temperature sensor is protected simply by placing the holding member attached with the temperature sensor so as to cover the unit cell to be detected. A sensor mounting structure can be provided.

本発明は以下の構成としてもよい。
前記温度センサにはバネ部が設けられる一方、前記保持部材には前記温度センサのバネ部を弾性変形可能に保持するバネ保持部が設けられていてもよい。 The present invention may have the following configurations.
While the temperature sensor is provided with a spring portion, the holding member may be provided with a spring holding portion that holds the spring portion of the temperature sensor so as to be elastically deformable.

このような構成とすると、保持部材のバネ保持部に保持された温度センサのバネ部が弾性変形することで、温度センサを検知対象となる単電池と接触する方向に付勢させることができるので、別途、バネ部材を必要とせず部品点数を減らすことができる。   With such a configuration, the temperature sensor can be biased in a direction in contact with the unit cell to be detected by elastically deforming the spring part of the temperature sensor held by the spring holding part of the holding member. In addition, the number of parts can be reduced without requiring a spring member.

前記電池モジュールは、前記複数の単電池のうち隣り合う単電池間を電気的に接続する接続部材を保持する樹脂プロテクタを備え、前記保持部材は前記樹脂プロテクタと一体的に設けられていてもよい。   The battery module may include a resin protector that holds a connection member that electrically connects adjacent unit cells among the plurality of unit cells, and the holding member may be provided integrally with the resin protector. .

複数の単電池を並べてなる単電池群には、隣り合う単電池間を電気的に接続するために、単電池間を接続する接続部材を保持する樹脂プロテクタが取り付けられることが多いため、樹脂プロテクタとは別に、温度センサの保持部材を用意して取り付けると、部材を作製する作業および取り付け作業にも手間がかかる。   In order to electrically connect adjacent unit cells, a resin protector that holds a connection member that connects the unit cells is often attached to a unit cell group in which a plurality of unit cells are arranged. Separately, if a temperature sensor holding member is prepared and attached, it takes time and effort to produce the member and to attach it.

しかしながら、上記のような構成とすると、樹脂プロテクタと保持部材とが一体的になっているので、樹脂プロテクタと保持部材とを一体的に成形することもできる上に、取り付け作業も一段階で済ませることができ、作業効率を向上することができる。   However, with the above configuration, since the resin protector and the holding member are integrated, the resin protector and the holding member can be formed integrally, and the mounting operation can be completed in one step. Work efficiency can be improved.

前記樹脂プロテクタは、前記単電池と他の機器とを接続する電線を収容する電線収容部を有する一方、前記温度センサには導体が接続され、前記導体は前記電線収容部に収容可能とされる構成であってもよい。   The resin protector has an electric wire accommodating portion that accommodates an electric wire connecting the unit cell and another device, while a conductor is connected to the temperature sensor, and the conductor can be accommodated in the electric wire accommodating portion. It may be a configuration.

温度センサに接続された単電池群を構成する単電池には、単電池の電圧を検知するための電圧検知端子に接続される電圧検知線などの電線が接続されることが多い。そこで上記のような構成とすると、樹脂プロテクタの電線収容部に温度センサに接続される導体が収容されるので、導体を収容する収容部を別途作製する必要がない。   In many cases, electric cells such as a voltage detection line connected to a voltage detection terminal for detecting the voltage of the unit cell are connected to the unit cell constituting the unit cell group connected to the temperature sensor. In view of the above, since the conductor connected to the temperature sensor is accommodated in the electric wire accommodating portion of the resin protector, there is no need to separately prepare the accommodating portion for accommodating the conductor.

本発明によれば、作業性に優れた温度センサの取付構造を提供することができる。   ADVANTAGE OF THE INVENTION According to this invention, the attachment structure of the temperature sensor excellent in workability | operativity can be provided.

実施形態１の温度センサの取付構造を備えた電池モジュールの斜視図The perspective view of the battery module provided with the attachment structure of the temperature sensor of Embodiment 1. 電池モジュールの平面図Plan view of battery module 電池モジュールの正面図Front view of battery module 電池モジュールの側面図Battery module side view 配線モジュールの斜視図Perspective view of wiring module 配線モジュールの正面図Front view of wiring module 配線モジュールの側面図Side view of wiring module 温度センサの斜視図Temperature sensor perspective view 温度センサの正面図Front view of temperature sensor 単電池に取り付ける前の保持部材の一部断面図Partial cross-sectional view of the holding member before being attached to the cell 図２のＡ−Ａ線における一部断面図Partial sectional view taken along line AA in FIG.

＜実施形態１＞
本発明の実施形態１を図１ないし図１１によって説明する。
実施形態１の温度センサ３５の取付構造を備えた電池モジュールＭは、複数の単電池１２を並べてなる単電池群１１と、単電池群１１に取り付けられる配線モジュール１０とを備える。本実施形態の電池モジュールＭは、電気自動車又はハイブリッド自動車等に搭載され、駆動用の電源として使用される。以下では、図３および図４の上方を上方、下方を下方として説明する。 <Embodiment 1>
A first embodiment of the present invention will be described with reference to FIGS.
The battery module M having the mounting structure of the temperature sensor 35 according to the first embodiment includes a single battery group 11 in which a plurality of single batteries 12 are arranged, and a wiring module 10 attached to the single battery group 11. The battery module M of this embodiment is mounted on an electric vehicle, a hybrid vehicle, or the like, and is used as a driving power source. In the following description, the upper side of FIGS. 3 and 4 is described as the upper side, and the lower side as the lower side.

（単電池１２）
図１に示すように、電池モジュールＭは、複数の単電池１２を並べた単電池群１１を備える。単電池群１１を構成する単電池１２は、概ね扁平な直方体形状をなしている。単電池１２は、電池要素（図示せず）を収容する電池本体１２Ａと、電池本体１２Ａの上面１４に突出形成された正極および負極の電極端子１３と、を有する（図４を参照）。 (Single cell 12)
As shown in FIG. 1, the battery module M includes a unit cell group 11 in which a plurality of unit cells 12 are arranged. The unit cells 12 constituting the unit cell group 11 have a substantially flat rectangular parallelepiped shape. The unit cell 12 includes a battery main body 12A that houses a battery element (not shown), and positive and negative electrode terminals 13 that protrude from the upper surface 14 of the battery main body 12A (see FIG. 4).

（配線モジュール１０）
単電池群１１には、配線モジュール１０が取り付けられている。この配線モジュール１０により、隣り合う単電池１２の極性の相違する電極端子１３同士が接続されて、複数の単電池１２が直列に接続されている。 (Wiring module 10)
A wiring module 10 is attached to the unit cell group 11. By the wiring module 10, the electrode terminals 13 having different polarities of adjacent unit cells 12 are connected to each other, and the plurality of unit cells 12 are connected in series.

配線モジュール１０は、隣り合う単電池１２の電極端子１３を接続する複数の接続部材（図示せず）と、隣り合う接続部材同士を電気的に絶縁するとともに、接続部材を保持する合成樹脂製の樹脂プロテクタ１５と、を備える。   The wiring module 10 is made of a synthetic resin that electrically insulates a plurality of connecting members (not shown) that connect the electrode terminals 13 of the adjacent unit cells 12 and the adjacent connecting members and holds the connecting members. A resin protector 15.

単電池１２の電極端子１３には接続部材とともに単電池１２の電圧を検知する電圧検知端子（図示せず）が接続されている。電圧検知端子には単電池１２と電池ＥＣＵ（他の機器の一例）とを接続する電線（図示せず）が接続されている。   A voltage detection terminal (not shown) for detecting the voltage of the unit cell 12 is connected to the electrode terminal 13 of the unit cell 12 together with the connection member. An electric wire (not shown) for connecting the cell 12 and the battery ECU (an example of another device) is connected to the voltage detection terminal.

（樹脂プロテクタ１５）
本実施形態の樹脂プロテクタ１５は、複数のユニット１６からなり、各ユニット１６には接続部材を保持する保持部１７と、電圧検知端子に接続された電線を収容する電線収容部２１とが一体的に設けられている。 (Resin protector 15)
The resin protector 15 of the present embodiment includes a plurality of units 16, and each unit 16 is integrally provided with a holding portion 17 that holds a connection member and an electric wire accommodation portion 21 that accommodates an electric wire connected to a voltage detection terminal. Is provided.

電線収容部２１は保持部１７に沿って設けられており、保持部１７および電線収容部２１には、それぞれ蓋部１８，２２が取り付けられている。保持部１７を覆う蓋部１８を第１蓋部１８とし、電線収容部２１を覆う蓋部２２を第２蓋部２２とする。   The electric wire accommodating portion 21 is provided along the holding portion 17, and lid portions 18 and 22 are attached to the holding portion 17 and the electric wire accommodating portion 21, respectively. The lid portion 18 that covers the holding portion 17 is referred to as a first lid portion 18, and the lid portion 22 that covers the wire housing portion 21 is referred to as a second lid portion 22.

第１蓋部１８は、図１および図５に示すように、保持部１７とヒンジ１９を介して連なっており、保持部１７に対して係止される係止構造２０を有している。第２蓋部２２は、電線収容部２１と、ヒンジ２３を介して連なっており、電線収容部２１に対して係止される係止構造２４を有している。   As shown in FIGS. 1 and 5, the first lid portion 18 is connected to the holding portion 17 via a hinge 19 and has a locking structure 20 that is locked to the holding portion 17. The second lid portion 22 is connected to the wire housing portion 21 via the hinge 23 and has a locking structure 24 that is locked to the wire housing portion 21.

図１および図２に示すように、右端部のユニット１６の保持部１７は、右端部の単電池１２よりも外側に突出しており、この部分には、外部機器（図示せず）との接続のための部材（コネクタや電線等）が取り付けられるようになっている。   As shown in FIGS. 1 and 2, the holding portion 17 of the unit 16 at the right end protrudes outward from the unit cell 12 at the right end, and this portion is connected to an external device (not shown). A member (connector, electric wire, etc.) for the purpose is attached.

（保持部材３０）
樹脂プロテクタ１５には、温度センサ３５を覆って保持する保持部材３０が、樹脂プロテクタ１５の保持部１７と隣接して一体的に設けられている。 (Holding member 30)
In the resin protector 15, a holding member 30 that covers and holds the temperature sensor 35 is integrally provided adjacent to the holding portion 17 of the resin protector 15.

保持部材３０は、図２に示すように、右端の単電池１２の上面１４および、右から５つめの単電池１２の上面１４に配置されている。右端の単電池１２の上面１４に配されている保持部材３０は、電線収容部２１と並ぶ位置に設けられており、右から５つめの単電池１２の上面１４に配されている保持部材３０は電線収容部２１と保持部１７との間に設けられている。   As shown in FIG. 2, the holding member 30 is disposed on the upper surface 14 of the rightmost unit cell 12 and the upper surface 14 of the fifth unit cell 12 from the right. The holding member 30 disposed on the upper surface 14 of the right end unit cell 12 is provided at a position aligned with the wire accommodating portion 21, and the holding member 30 disposed on the upper surface 14 of the fifth unit cell 12 from the right. Is provided between the electric wire housing part 21 and the holding part 17.

保持部材３０は、下側（単電池１２側）に開口部３１を有する直方体状の部材であり、その内部には、温度センサ３５が収容されている。保持部材３０の側面のうち、図３に示す正面側に配される側面には、図３および図６に示すように、温度センサ３５に接続されたリード線３７（導体の一例）が導出される導体導出孔３２が形成されている。   The holding member 30 is a rectangular parallelepiped member having an opening 31 on the lower side (unit cell 12 side), and a temperature sensor 35 is accommodated therein. Among the side surfaces of the holding member 30, a lead wire 37 (an example of a conductor) connected to the temperature sensor 35 is led out to the side surface arranged on the front side shown in FIG. 3 as shown in FIGS. A conductor outlet hole 32 is formed.

（温度センサ３５）
温度センサ３５は、図示しない温度検出素子を備える。温度検出素子は、例えば、サーミスタにより構成される。サーミスタとしては、ＰＴＣサーミスタ、又はＮＴＣサーミスタを適宜に選択できる。また、温度検出素子としては、サーミスタに限られず、温度を検出可能であれば任意の素子を適宜に選択できる。 (Temperature sensor 35)
The temperature sensor 35 includes a temperature detection element (not shown). The temperature detection element is configured by, for example, a thermistor. As the thermistor, a PTC thermistor or an NTC thermistor can be appropriately selected. Further, the temperature detection element is not limited to the thermistor, and any element can be appropriately selected as long as the temperature can be detected.

温度センサ３５は、図８〜図１１に示すように、温度検出素子を備える合成樹脂製の本体部３６と、本体部３６の幅方向両側から外側方向に、それぞれ突出する合成樹脂製のアーム状のバネ部３８とを有する。   As shown in FIGS. 8 to 11, the temperature sensor 35 includes a synthetic resin main body portion 36 including a temperature detection element, and arm portions made of synthetic resin that protrude outward from both sides in the width direction of the main body portion 36. Spring part 38.

温度センサ３５の本体部３６の上端からは一対のリード線３７が導出され、本体部３６の下端には温度検出素子が収容されている。一対のリード線３７は、図示しない外部回路に接続されており、温度検出素子からの信号はこのリード線３７を介して外部回路に送信されるようになっている。外部回路は、例えば図示しない電池ＥＣＵに配されて、温度検出素子からの信号によって単電池１２の温度を検知するようになっている。   A pair of lead wires 37 is led out from the upper end of the main body 36 of the temperature sensor 35, and a temperature detection element is accommodated in the lower end of the main body 36. The pair of lead wires 37 are connected to an external circuit (not shown), and a signal from the temperature detection element is transmitted to the external circuit via the lead wire 37. The external circuit is arranged, for example, in a battery ECU (not shown), and detects the temperature of the unit cell 12 based on a signal from the temperature detection element.

温度センサ３５のバネ部３８はＶ字状をなしている。バネ部３８は、図１０および図１１に示すように、保持部材３０の側面のうち、単電池１２の並び方向と略垂直な方向に配される一対の側面の内側に設けた、段付き状のバネ保持部３３により保持されている。   The spring portion 38 of the temperature sensor 35 is V-shaped. As shown in FIGS. 10 and 11, the spring portion 38 has a stepped shape provided inside a pair of side surfaces arranged in a direction substantially perpendicular to the arrangement direction of the unit cells 12 among the side surfaces of the holding member 30. Is held by the spring holding portion 33.

バネ保持部３３に取り付けられた温度センサ３５は、単電池１２に取り付ける前においては、その本体部３６の下端部が、保持部材３０の下端部よりも下方に配される（図１０を参照）。バネ保持部３３に取り付けられた温度センサ３５は、温度検知の対象となる単電池１２に取り付けられると、単電池１２の上面１４に押し上げられて、バネ部３８が縮む方向に弾性変形しつつ、保持部材３０の上面に接触し、かつ、本体部３６の下端部が単電池１２の上面１４に当接する（図１１を参照）。つまり、温度センサ３５が単電池１２の検知対象面１４Ａと接触する方向に付勢されるようになっている。   Before the temperature sensor 35 attached to the spring holding part 33 is attached to the unit cell 12, the lower end part of the main body part 36 is arranged below the lower end part of the holding member 30 (see FIG. 10). . When the temperature sensor 35 attached to the spring holding portion 33 is attached to the unit cell 12 to be temperature-detected, the temperature sensor 35 is pushed up to the upper surface 14 of the unit cell 12 and elastically deforms in the direction in which the spring unit 38 contracts. The upper surface of the holding member 30 is contacted, and the lower end of the main body 36 is in contact with the upper surface 14 of the unit cell 12 (see FIG. 11). That is, the temperature sensor 35 is urged in a direction in which the temperature sensor 35 comes into contact with the detection target surface 14 </ b> A of the unit cell 12.

（温度センサ３５の取り付け構造）
次に、温度センサ３５の取り付け構造について説明する。
複数のユニット１６を連結させてなる樹脂プロテクタ１５の保持部１７に、接続部材を収容・保持した後、電圧検知線（電線）が接続された電圧検知端子を収容し、電圧検知線を電線収容部２１に収容する。 (Temperature sensor 35 mounting structure)
Next, the mounting structure of the temperature sensor 35 will be described.
After holding and holding the connecting member in the holding part 17 of the resin protector 15 formed by connecting a plurality of units 16, the voltage detection terminal to which the voltage detection line (electric wire) is connected is accommodated, and the voltage detection line is accommodated in the electric wire. Housed in part 21.

接続部材等を収容する作業と同時または前後して、保持部材３０に温度センサ３５を保持させる。具体的には、保持部材３０の下方に設けた開口部３１から温度センサ３５を挿入して、保持部材３０の側面に設けた導体導出孔３２からリード線３７を導出させ、バネ部３８をバネ保持部３３に取り付けると、温度センサ３５の本体部３６の下端部が、保持部材３０の下端部よりも下方に配される（図１０を参照）。   The temperature sensor 35 is held by the holding member 30 at the same time as or before or after the operation of housing the connecting member or the like. Specifically, the temperature sensor 35 is inserted from the opening 31 provided below the holding member 30, the lead wire 37 is led out from the conductor lead-out hole 32 provided on the side surface of the holding member 30, and the spring portion 38 is spring-loaded. When attached to the holding portion 33, the lower end portion of the main body portion 36 of the temperature sensor 35 is disposed below the lower end portion of the holding member 30 (see FIG. 10).

次いで、第１蓋部１８と第２蓋部２２とを閉めて係止すると、図５〜図７に示すような配線モジュール１０が得られる。   Next, when the first lid 18 and the second lid 22 are closed and locked, the wiring module 10 as shown in FIGS. 5 to 7 is obtained.

このようにして組み立てた配線モジュール１０を、予め並べて置いた単電池群１１に対し、保持部材３０が温度検知の対象となる単電池１２の上に配されるように配置して、単電池１２の上面１４に被せ付ける。このとき、保持部材３０の開口部３１は下側を向いている。   The wiring module 10 assembled in this manner is arranged so that the holding member 30 is arranged on the unit cell 12 to be temperature-detected with respect to the unit cell group 11 arranged in advance. The top surface 14 is covered. At this time, the opening 31 of the holding member 30 faces downward.

配線モジュール１０を単電池群１１の上に被せ付けると、保持部材３０に保持された温度センサ３５は、温度検知の対象となる単電池１２の上面１４に押し上げられて、バネ部３８が縮む方向に弾性変形しつつ、保持部材３０の上壁の内壁面に接触し、かつ、本体部３６の下端部が単電池１２の上面１４に当接して温度センサ３５は単電池１２の検知対象面１４Ａと接触する方向に付勢される（図１１を参照）。   When the wiring module 10 is put on the unit cell group 11, the temperature sensor 35 held by the holding member 30 is pushed up to the upper surface 14 of the unit cell 12 to be temperature-detected and the spring portion 38 is contracted. The temperature sensor 35 is in contact with the inner wall surface of the upper wall of the holding member 30 while being elastically deformed, and the lower end portion of the main body portion 36 is in contact with the upper surface 14 of the unit cell 12. Is urged in the direction of contact with (see FIG. 11).

（組み付け方法）
次に、各電極端子１３にナット締めする等の方法により、接続部材と電極端子１３とを接続する。この接続作業が完了すると電極端子１３と接続部材とが電気的に接続可能となるとともに、温度センサ３５が単電池１２（検知対象面１４Ａ）と接触する方向に付勢された状態で固定される。これにより、温度センサ３５が取り付けられた電池モジュールＭが得られる。 (Assembly method)
Next, the connection member and the electrode terminal 13 are connected by a method such as nut fastening to each electrode terminal 13. When this connection operation is completed, the electrode terminal 13 and the connection member can be electrically connected, and the temperature sensor 35 is fixed in a state of being biased in a direction in contact with the unit cell 12 (detection target surface 14A). . Thereby, the battery module M to which the temperature sensor 35 is attached is obtained.

（作用および効果）
次に本実施形態の作用および効果について説明する。
本実施形態においては、保持部材３０の開口部３１から温度センサ３５を取り付けておき、この保持部材３０を、開口部３１を単電池１２側に向けて検知対象とされる単電池１２を覆うように配置すると、保持部材３０に取り付けられた温度センサ３５が、検知対象とされる単電池１２と接触する方向に付勢可能となる。 (Function and effect)
Next, the operation and effect of this embodiment will be described.
In the present embodiment, a temperature sensor 35 is attached from the opening 31 of the holding member 30, and the holding member 30 is covered with the unit cell 12 to be detected with the opening 31 facing the unit cell 12. If it arrange | positions to, the temperature sensor 35 attached to the holding member 30 can be urged | biased in the direction which contacts the cell 12 made into a detection target.

本実施形態において、保持部材３０は単電池１２側に開口部３１を有しているので、単電池１２とは反対側を閉じた構成とすることができ、開口部３１を覆うカバーは不要である。したがって、本実施形態によれば、温度センサ３５を取り付けた保持部材３０を、検知対象とされる単電池１２を覆うように配置するだけで温度センサ３５が保護された状態に取り付けられるので、作業性に優れた温度センサ３５の取付構造を提供することができる。   In the present embodiment, since the holding member 30 has the opening 31 on the unit cell 12 side, the holding member 30 can be configured such that the side opposite to the unit cell 12 is closed, and a cover that covers the opening 31 is unnecessary. is there. Therefore, according to the present embodiment, the temperature sensor 35 is attached in a protected state simply by arranging the holding member 30 attached with the temperature sensor 35 so as to cover the unit cell 12 to be detected. It is possible to provide a mounting structure for the temperature sensor 35 that is excellent in performance.

また、本実施形態によれば、温度センサ３５にはバネ部３８が設けられる一方、保持部材３０には温度センサ３５のバネ部３８を弾性変形可能に保持するバネ保持部３３が設けられているから、保持部材３０のバネ保持部３３に保持された温度センサ３５のバネ部３８が弾性変形することで、温度センサ３５を検知対象となる単電池１２と接触する方向に付勢させることができるので、別途、バネ部３８材を必要とせず部品点数を減らすことができる。   According to the present embodiment, the temperature sensor 35 is provided with the spring portion 38, while the holding member 30 is provided with the spring holding portion 33 that holds the spring portion 38 of the temperature sensor 35 so as to be elastically deformable. From this, the spring portion 38 of the temperature sensor 35 held by the spring holding portion 33 of the holding member 30 is elastically deformed, so that the temperature sensor 35 can be biased in a direction in contact with the unit cell 12 to be detected. Therefore, the number of parts can be reduced without requiring the spring part 38 material separately.

また、本実施形態において、電池モジュールＭは、複数の単電池１２のうち隣り合う単電池１２，１２間を電気的に接続する接続部材を保持する樹脂プロテクタ１５を備え、保持部材３０は樹脂プロテクタ１５と一体的に設けられている。したがって、本実施形態によれば、樹脂プロテクタ１５と保持部材３０とが一体的になっているので、樹脂プロテクタ１５と保持部材３０とを一体的に成形することもできる上に、取り付け作業も一段階で済ませることができ、作業効率を向上することができる。   Moreover, in this embodiment, the battery module M is provided with the resin protector 15 holding the connection member which electrically connects between the adjacent single cells 12 and 12 among the plurality of single cells 12, and the holding member 30 is the resin protector. 15 is provided integrally. Therefore, according to the present embodiment, since the resin protector 15 and the holding member 30 are integrated, the resin protector 15 and the holding member 30 can be formed integrally, and the mounting operation is also simple. This can be done in stages and work efficiency can be improved.

さらに本実施形態によれば、樹脂プロテクタ１５は、単電池１２と他の機器とを接続する電圧検知線を収容する電線収容部２１を有する一方、温度センサ３５には導体が接続され、導体は電線収容部２１に収容可能とされるので、樹脂プロテクタ１５の電線収容部２１に温度センサ３５に接続される導体が収容され、導体を収容する収容部を別途作製する必要がない。   Furthermore, according to the present embodiment, the resin protector 15 has the electric wire accommodating portion 21 that accommodates the voltage detection line that connects the unit cell 12 and other devices, while the conductor is connected to the temperature sensor 35. Since it can be accommodated in the electric wire accommodating part 21, the conductor connected to the temperature sensor 35 is accommodated in the electric wire accommodating part 21 of the resin protector 15, and there is no need to separately prepare an accommodating part for accommodating the conductor.

＜他の実施形態＞
本発明は上記記述及び図面によって説明した実施形態に限定されるものではなく、例えば次のような実施形態も本発明の技術的範囲に含まれうる。
（１）上記実施形態では、バネ部３８を設けた温度センサ３５を示したが、別体のバネ部材を備える温度センサであってもよい。
（２）上記実施形態では、保持部材３０と樹脂プロテクタ１５とが一体的になっている構成のものを示したが、保持部材と樹脂プロテクタとは別体であってもよい。
（３）上記実施形態では電線収容部２１を有する樹脂プロテクタ１５を示したが、電線収容部を備えない樹脂プロテクタであってもよい。また電線収容部が別体の樹脂プロテクタであってもよい。 <Other embodiments>
The present invention is not limited to the embodiment described with reference to the above description and drawings. For example, the following embodiments can also be included in the technical scope of the present invention.
(1) Although the temperature sensor 35 provided with the spring portion 38 is shown in the above embodiment, a temperature sensor including a separate spring member may be used.
(2) In the above embodiment, the holding member 30 and the resin protector 15 are integrated, but the holding member and the resin protector may be separate.
(3) Although the resin protector 15 having the electric wire housing part 21 is shown in the above embodiment, a resin protector that does not include the electric wire housing part may be used. The electric wire housing part may be a separate resin protector.

Ｍ…電池モジュール
１０…配線モジュール
１１…単電池群
１２…単電池
１３…電極端子
１４…上面
１４Ａ…検知対象面
１５…樹脂プロテクタ
１７…保持部
２１…電線収容部
３０…保持部材
３１…開口部
３２…導体導出孔
３３…バネ保持部
３５…温度センサ
３６…本体部
３７…リード線（導体）
３８…バネ部 M ... Battery module 10 ... Wiring module 11 ... Single cell group 12 ... Single cell 13 ... Electrode terminal 14 ... Upper surface 14A ... Detection target surface 15 ... Resin protector 17 ... Holding part 21 ... Electric wire accommodating part 30 ... Holding member 31 ... Opening part 32 ... Conductor outlet hole 33 ... Spring holding part 35 ... Temperature sensor 36 ... Body part 37 ... Lead wire (conductor)
38 ... Spring part

Claims (4)

複数の単電池を並べてなる単電池群を有する電池モジュールに温度センサを取り付ける温度センサの取付構造であって、
複数の前記単電池のうち、少なくとも前記温度センサによる温度検知の対象とされる単電池を覆うとともに当該単電池側に開口部を有し、前記温度センサを保持する保持部材において、
前記温度センサは、前記温度検知の対象とされる単電池と接触する方向に付勢可能に取り付けられている温度センサの取付構造。 A temperature sensor mounting structure for attaching a temperature sensor to a battery module having a cell group in which a plurality of cells are arranged,
Among the plurality of unit cells, in the holding member that covers at least the unit cell to be temperature-detected by the temperature sensor and has an opening on the unit cell side, and holds the temperature sensor,
The temperature sensor is a temperature sensor mounting structure that is mounted so as to be capable of being biased in a direction in contact with the unit cell that is the target of the temperature detection. 前記温度センサにはバネ部が設けられる一方、前記保持部材には前記温度センサのバネ部を弾性変形可能に保持するバネ保持部が設けられている請求項１に記載の温度センサの取付構造。 The temperature sensor mounting structure according to claim 1, wherein the temperature sensor is provided with a spring portion, and the holding member is provided with a spring holding portion that holds the spring portion of the temperature sensor so as to be elastically deformable. 前記電池モジュールは、前記複数の単電池のうち隣り合う単電池間を電気的に接続する接続部材を保持する樹脂プロテクタを備え、前記保持部材は前記樹脂プロテクタと一体的に設けられている請求項１または請求項２に記載の温度センサの取付構造。 The battery module includes a resin protector that holds a connection member that electrically connects adjacent cells among the plurality of single cells, and the holding member is provided integrally with the resin protector. The temperature sensor mounting structure according to claim 1 or 2. 前記樹脂プロテクタは、前記単電池と他の機器とを接続する電線を収容する電線収容部を有する一方、前記温度センサには導体が接続され、
前記導体は前記電線収容部に収容可能とされる請求項３に記載の温度センサの取付構造。 While the resin protector has a wire accommodating portion that accommodates an electric wire connecting the unit cell and another device, a conductor is connected to the temperature sensor,
The temperature sensor mounting structure according to claim 3, wherein the conductor can be accommodated in the electric wire accommodation portion.
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JP2014089912A (en) * 2012-10-31 2014-05-15 Auto Network Gijutsu Kenkyusho:Kk Wiring module
JP2015230200A (en) * 2014-06-04 2015-12-21 株式会社オートネットワーク技術研究所 Structure for mounting temperature sensor
WO2015196875A1 (en) * 2014-06-24 2015-12-30 江苏华东锂电技术研究院有限公司 Battery test platform
JP2016054117A (en) * 2014-09-04 2016-04-14 株式会社Ｇｓユアサ Power storage device
JP2020009537A (en) * 2018-07-03 2020-01-16 矢崎総業株式会社 Fitting structure of temperature sensor
US11320317B2 (en) 2018-07-24 2022-05-03 Yazaki Corporation Attachment structure of temperature sensor

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JP2009043637A (en) * 2007-08-10 2009-02-26 Yazaki Corp Power supply device
JP2012154901A (en) * 2011-01-28 2012-08-16 Yazaki Corp Temperature sensor

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JP2007263816A (en) * 2006-03-29 2007-10-11 Furukawa Electric Co Ltd:The Temperature sensing apparatus
JP2009043637A (en) * 2007-08-10 2009-02-26 Yazaki Corp Power supply device
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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014089912A (en) * 2012-10-31 2014-05-15 Auto Network Gijutsu Kenkyusho:Kk Wiring module
JP2015230200A (en) * 2014-06-04 2015-12-21 株式会社オートネットワーク技術研究所 Structure for mounting temperature sensor
WO2015196875A1 (en) * 2014-06-24 2015-12-30 江苏华东锂电技术研究院有限公司 Battery test platform
JP2016054117A (en) * 2014-09-04 2016-04-14 株式会社Ｇｓユアサ Power storage device
JP2020009537A (en) * 2018-07-03 2020-01-16 矢崎総業株式会社 Fitting structure of temperature sensor
US11320317B2 (en) 2018-07-24 2022-05-03 Yazaki Corporation Attachment structure of temperature sensor

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