JP5673484B2 - Connection structure between connecting member and electric wire and battery module - Google Patents

Connection structure between connecting member and electric wire and battery module Download PDF

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JP5673484B2
JP5673484B2 JP2011234947A JP2011234947A JP5673484B2 JP 5673484 B2 JP5673484 B2 JP 5673484B2 JP 2011234947 A JP2011234947 A JP 2011234947A JP 2011234947 A JP2011234947 A JP 2011234947A JP 5673484 B2 JP5673484 B2 JP 5673484B2
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terminal
connection
connector
electric wire
housing
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JP2013093227A (en
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怜也 岡本
怜也 岡本
平光 宏臣
宏臣 平光
平井 宏樹
宏樹 平井
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株式会社オートネットワーク技術研究所
住友電装株式会社
住友電気工業株式会社
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

Description

本発明は、接続部材と電線との接続構造及び電池モジュールに関する。   The present invention relates to a connection structure between a connection member and an electric wire and a battery module.
電気自動車やハイブリッド車用の電池モジュールは、正極及び負極の電極端子を有する単電池が複数個並んで配列されており、隣り合う単電池の電極端子間がバスバー(接続部材)で接続されることにより複数の単電池が直列に接続される。   In battery modules for electric vehicles and hybrid vehicles, a plurality of single cells having positive and negative electrode terminals are arranged side by side, and electrode terminals of adjacent single cells are connected by a bus bar (connection member). A plurality of single cells are connected in series.
下記特許文献1では、電極端子間を接続する接続部材及びこの接続部材に重ねられた電圧検知端子が、複数の単位ユニットに収容されており、これら単位ユニットを左右に並べて連結することで電池接続アセンブリが形成されている。そして、この電池接続アセンブリの接続部材及び電圧検知端子の貫通孔に電極端子を通し、電極端子を締結部材であるナット等で締結することで、電池接続アセンブリが複数の単電池に組み付けられる。   In Patent Document 1 below, a connection member that connects electrode terminals and a voltage detection terminal that is superimposed on the connection member are accommodated in a plurality of unit units, and these unit units are connected side by side to connect the battery. An assembly is formed. The battery connection assembly is assembled to the plurality of single cells by passing the electrode terminal through the connection member of the battery connection assembly and the through hole of the voltage detection terminal and fastening the electrode terminal with a nut or the like as a fastening member.
この電池接続アセンブリの電圧検知端子に接続された電線は、溝部を通って電池ECUに延びており、電池ECUにて単電池の電圧が検知される。   The electric wire connected to the voltage detection terminal of the battery connection assembly extends to the battery ECU through the groove, and the voltage of the single cell is detected by the battery ECU.
特開2011−175928号公報JP 2011-175828 A
ところで、上記特許文献1では、接続部材に重ねた電圧検知端子を締結部材で締結して固定しているため、今後、何らかの要因により、電池接続アセンブリの組み付け後に、電圧検知端子を取り外したり、再び取り付けたりする場合には、その都度、締結部材を緩めたり、締めつけるという煩雑な作業が必要になる。そのため、このような電圧検知端子の着脱作業についても予め作業性を向上させることが望ましい。   By the way, in Patent Document 1, since the voltage detection terminal overlapped with the connection member is fastened and fixed by the fastening member, the voltage detection terminal may be removed or reattached after assembly of the battery connection assembly for some reason. When attaching, a complicated operation of loosening or fastening the fastening member is required each time. Therefore, it is desirable to improve workability in advance for such a voltage detection terminal attaching / detaching operation.
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、電極端子間を接続する接続部材と電線との接続や取り外しの作業性を向上させることが可能な接続部材と電線との接続構造及び電池モジュール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 it is possible to improve the workability of connection and removal between a connection member and an electric wire that connect between electrode terminals. An object is to provide a connection structure and a battery module.
本発明は、正極及び負極の電極端子を有する複数の単電池において隣り合う前記電極端子間を接続する接続部材と、前記単電池の状態を検知するための機器に連なる電線と、の接続構造であって、前記接続部材に連なる第1端子部と、前記第1端子部が収容される第1ハウジングと、を有する第1コネクタと、前記電線の端末部に接続される第2端子部と、前記第2端子部が収容される第2ハウジングと、を有する第2コネクタと、を備え、前記第1コネクタと前記第2コネクタとのコネクタ嵌合により、前記接続部材と前記電線とが電気的に接続されるように構成されており、前記接続部材には、前記第1ハウジングを前記接続部材に対して固定する固定部が一体に形成されているところに特徴を有する。 The present invention is a connection structure of a connection member that connects between the electrode terminals adjacent to each other in a plurality of unit cells having positive and negative electrode terminals, and an electric wire connected to a device for detecting the state of the unit cell. A first connector having a first terminal portion connected to the connection member, a first housing in which the first terminal portion is accommodated, and a second terminal portion connected to a terminal portion of the electric wire, A second housing having a second housing in which the second terminal portion is accommodated, and the connection member and the electric wire are electrically connected by fitting the first connector with the second connector. The connecting member is characterized in that a fixing portion for fixing the first housing to the connecting member is integrally formed with the connecting member .
本構成によれば、電極端子間を接続する接続部材と、単電池の状態を検知するための機器に連なる電線と、がコネクタ嵌合により電気的に接続されるため、接続部材と電線との接続や取り外しの作業性を向上させることが可能となる。
また、簡素な構成で第1ハウジングを接続部材に対して固定することが可能になる。
本発明は、正極及び負極の電極端子を有する複数の単電池において隣り合う前記電極端子間を接続する接続部材と、前記単電池の状態を検知するための機器に連なる電線と、の接続構造であって、前記接続部材に連なる第1端子部と、前記第1端子部が収容される第1ハウジングと、を有する第1コネクタと、前記電線の端末部に接続される第2端子部と、前記第2端子部が収容される第2ハウジングと、を有する第2コネクタと、を備え、前記第1コネクタと前記第2コネクタとのコネクタ嵌合により、前記接続部材と前記電線とが電気的に接続されるように構成されており、前記第1コネクタは、1個の前記第1ハウジングに、隣り合う2個の接続部材のそれぞれに連なる2個の第1端子部が収容されているところに特徴を有する。
本構成によれば、電極端子間を接続する接続部材と、単電池の状態を検知するための機器に連なる電線と、がコネクタ嵌合により電気的に接続されるため、接続部材と電線との接続や取り外しの作業性を向上させることが可能となる。
また、2個の第1端子部が1個の第1ハウジングに収容されるため、接続部材と電線との接続構造を簡素化することが可能になる。
According to this configuration, since the connecting member that connects the electrode terminals and the electric wire connected to the device for detecting the state of the unit cell are electrically connected by connector fitting, the connecting member and the electric wire It becomes possible to improve workability of connection and removal.
In addition, the first housing can be fixed to the connection member with a simple configuration.
The present invention is a connection structure of a connection member that connects between the electrode terminals adjacent to each other in a plurality of unit cells having positive and negative electrode terminals, and an electric wire connected to a device for detecting the state of the unit cell. A first connector having a first terminal portion connected to the connection member, a first housing in which the first terminal portion is accommodated, and a second terminal portion connected to a terminal portion of the electric wire, A second housing having a second housing in which the second terminal portion is accommodated, and the connection member and the electric wire are electrically connected by fitting the first connector with the second connector. In the first connector, two first terminal portions connected to each of two adjacent connecting members are accommodated in one first housing. It has the characteristics.
According to this configuration, since the connecting member that connects the electrode terminals and the electric wire connected to the device for detecting the state of the unit cell are electrically connected by connector fitting, the connecting member and the electric wire It becomes possible to improve workability of connection and removal.
In addition, since the two first terminal portions are accommodated in one first housing, the connection structure between the connection member and the electric wire can be simplified.
上記構成の実施態様として以下の構成を有すれば好ましい。
・前記第1端子部は、前記接続部材と一体に形成された雄端子であり、前記第2端子部は、前記雄端子に接続される雌端子である。
このようにすれば、雄端子を接続部材と一体に形成することで、例えば、雌端子のような雄端子よりも複雑な構成を接続部材と一体に形成する場合と比較して接続部材と電線との接続構造を簡素化することが可能になる。
It is preferable to have the following configuration as an embodiment of the above configuration.
The first terminal portion is a male terminal formed integrally with the connection member, and the second terminal portion is a female terminal connected to the male terminal.
In this case, by forming the male terminal integrally with the connection member, for example, the connection member and the electric wire are compared with a case where a more complicated configuration than the male terminal such as the female terminal is formed integrally with the connection member. It becomes possible to simplify the connection structure.
本発明は、正極及び負極の電極端子を有する複数の単電池において隣り合う前記電極端子間を接続する接続部材と、前記単電池の状態を検知するための機器に連なる電線と、が接続されてなる電池モジュールであって、前記接続部材に連なる第1端子部と、前記第1端子部が収容される第1ハウジングと、を有する第1コネクタと、前記電線の端末部に接続される第2端子部と、前記第2端子部が収容される第2ハウジングと、を有する第2コネクタと、を備え、前記第1コネクタと前記第2コネクタとのコネクタ嵌合により、前記接続部材と前記電線とが電気的に接続され、前記接続部材には、前記第1ハウジングを前記接続部材に対して固定する固定部が一体に形成されているところに特徴を有する。
本構成によれば、電極端子間を接続する接続部材と、単電池の状態を検知するための機器に連なる電線と、がコネクタ嵌合により電気的に接続されるため、電線との接続や取り外しの作業性を向上させることが可能となる。
また、簡素な構成で第1ハウジングを接続部材に固定することが可能になる。
本発明は、正極及び負極の電極端子を有する複数の単電池において隣り合う前記電極端子間を接続する接続部材と、前記単電池の状態を検知するための機器に連なる電線と、が接続されてなる電池モジュールであって、前記接続部材に連なる第1端子部と、前記第1端子部が収容される第1ハウジングと、を有する第1コネクタと、前記電線の端末部に接続される第2端子部と、前記第2端子部が収容される第2ハウジングと、を有する第2コネクタと、を備え、前記第1コネクタと前記第2コネクタとのコネクタ嵌合により、前記接続部材と前記電線とが電気的に接続され、前記第1コネクタは、1個の前記第1ハウジングに隣り合う2個の接続部材のそれぞれに連なる2個の第1端子部が収容されているところに特徴を有する。
本構成によれば、電極端子間を接続する接続部材と、単電池の状態を検知するための機器に連なる電線と、がコネクタ嵌合により電気的に接続されるため、電線との接続や取り外しの作業性を向上させることが可能となる。
また、2個の第1端子部が1個の第1ハウジングに収容されるため、電池モジュールの構成を簡素化することが可能になる。
In the present invention, a connecting member that connects between the electrode terminals adjacent to each other in a plurality of unit cells having positive and negative electrode terminals, and an electric wire connected to a device for detecting the state of the unit cell are connected. A battery module comprising: a first connector having a first terminal portion connected to the connection member; a first housing in which the first terminal portion is accommodated; and a second connector connected to a terminal portion of the electric wire. A second connector having a terminal portion and a second housing in which the second terminal portion is accommodated, and the connection member and the electric wire by connector fitting between the first connector and the second connector. Are electrically connected, and the connecting member is characterized in that a fixing portion for fixing the first housing to the connecting member is integrally formed .
According to this configuration, since the connecting member that connects the electrode terminals and the electric wire connected to the device for detecting the state of the unit cell are electrically connected by the connector fitting, the connection and removal from the electric wire are performed. It is possible to improve the workability.
In addition, the first housing can be fixed to the connection member with a simple configuration.
In the present invention, a connecting member that connects between the electrode terminals adjacent to each other in a plurality of unit cells having positive and negative electrode terminals, and an electric wire connected to a device for detecting the state of the unit cell are connected. A battery module comprising: a first connector having a first terminal portion connected to the connection member; a first housing in which the first terminal portion is accommodated; and a second connector connected to a terminal portion of the electric wire. A second connector having a terminal portion and a second housing in which the second terminal portion is accommodated, and the connection member and the electric wire by connector fitting between the first connector and the second connector. Are electrically connected, and the first connector is characterized in that two first terminal portions connected to each of two connecting members adjacent to one first housing are accommodated. .
According to this configuration, since the connecting member that connects the electrode terminals and the electric wire connected to the device for detecting the state of the unit cell are electrically connected by the connector fitting, the connection and removal from the electric wire are performed. It is possible to improve the workability.
Further, since the two first terminal portions are accommodated in one first housing, the configuration of the battery module can be simplified.
上記構成の実施態様として以下の構成を有すれば好ましい。
・前記第1端子部は、前記接続部材と一体に形成された雄端子であり、前記第2端子部は、前記雄端子に接続される雌端子である。
このようにすれば、雄端子を接続部材と一体に形成することで、例えば、雌端子のような雄端子よりも複雑な構成を接続部材と一体に形成する場合と比較して電池モジュールの構成を簡素化することが可能になる。
It is preferable to have the following configuration as an embodiment of the above configuration.
The first terminal portion is a male terminal formed integrally with the connection member, and the second terminal portion is a female terminal connected to the male terminal.
In this way, by forming the male terminal integrally with the connection member, for example, the configuration of the battery module compared to the case where a more complicated configuration than the male terminal such as a female terminal is formed integrally with the connection member. Can be simplified.
本発明によれば、単電池の状態を検知するための機器に連なる電線と電極端子間を接続する接続部材との接続や取り外しの作業性を向上させることが可能となる。   ADVANTAGE OF THE INVENTION According to this invention, it becomes possible to improve workability | operativity of connection and removal with the connection member which connects between the electric wire connected to the apparatus for detecting the state of a cell, and electrode terminals.
本発明の電池モジュールの一実施形態を示す斜視図The perspective view which shows one Embodiment of the battery module of this invention 電池モジュールを示す平面図Plan view showing the battery module 電池モジュールを示す側面図Side view showing the battery module 電池モジュールを示す正面図Front view showing the battery module 接続部材にコネクタが接続された状態を示す斜視図The perspective view which shows the state by which the connector was connected to the connection member 接続部材にコネクタが接続された状態を示す背面図Rear view showing a state where the connector is connected to the connection member 接続部材、第1ハウジング及び第2コネクタに分解された状態を示す斜視図The perspective view which shows the state decomposed | disassembled into the connection member, the 1st housing, and the 2nd connector. 接続部材、第1ハウジング及び第2コネクタに分解された状態を示す正面図The front view which shows the state decomposed | disassembled into the connection member, the 1st housing, and the 2nd connector 接続部材、第1ハウジング及び第2コネクタに分解された状態を示す側面図The side view which shows the state decomposed | disassembled into the connection member, the 1st housing, and the 2nd connector 接続部材、第1ハウジング及び第2コネクタに分解された状態を示す背面図The rear view which shows the state decomposed | disassembled into the connection member, the 1st housing, and the 2nd connector 接続部材を示す平面図Plan view showing connecting member 第1ハウジングを示す平面図Plan view showing the first housing 第1ハウジングを示す底面図Bottom view showing the first housing
<実施形態>
本発明の一実施形態を、図1ないし図13を参照しつつ説明する。
本実施形態の電池モジュール10は、図1に示すように、複数の単電池11を並べて構成された単電池群13を備えて構成されるものであり、この電池モジュール10は、例えば、電気自動車またはハイブリッド自動車等の駆動源として使用される。以下では、上下方向については図3を基準とし、前後方向については図2の下方を前方、上方を後方として説明する。
<Embodiment>
An embodiment of the present invention will be described with reference to FIGS.
As shown in FIG. 1, the battery module 10 of the present embodiment includes a single cell group 13 configured by arranging a plurality of single cells 11. The battery module 10 is, for example, an electric vehicle. Or it is used as drive sources, such as a hybrid vehicle. In the following, the upper and lower directions will be described with reference to FIG. 3, and the front and rear directions will be described with the lower side of FIG.
(電池モジュール)
電池モジュール10は、図2に示すように、横並びに配列された8個(複数個)の単電池11からなる単電池群13と、隣り合う電極端子12A,12B間を接続する7個(複数個)の接続部材14と、外部の機器である電池ECUに接続される複数の電圧検知用電線W(本発明の構成である「電線」の一例)と、接続部材14と電圧検知用電線Wとを第1コネクタ23と第2コネクタ30とのコネクタ嵌合により接続する4個(複数個)のコネクタ35と、を備えて構成されている。
(Battery module)
As shown in FIG. 2, the battery module 10 includes a cell group 13 composed of eight (plural) unit cells 11 arranged side by side and seven (plural) connecting the adjacent electrode terminals 12A and 12B. ) Connecting members 14, a plurality of voltage detection wires W (an example of a “wire” having the configuration of the present invention) connected to a battery ECU that is an external device, the connection members 14, and voltage detection wires W. And four (plural) connectors 35 that connect the first connector 23 and the second connector 30 by connector fitting.
各単電池11は、内部に図示しない発電要素が収容された扁平な直方体状の本体部の上面から垂直に突出する一対の電極端子12A,12Bを有する。
電極端子12A,12B(正極を12A,負極を12Bとして図示)は、外周にネジ溝を有するボルト状であって、本体部の前部及び後部に設けられている。
Each unit cell 11 has a pair of electrode terminals 12A and 12B protruding vertically from the upper surface of a flat rectangular parallelepiped main body in which a power generation element (not shown) is accommodated.
The electrode terminals 12A and 12B (illustrated as a positive electrode 12A and a negative electrode 12B) have a bolt shape having screw grooves on the outer periphery, and are provided at the front and rear portions of the main body.
各単電池11の極性(正負)の向きは、互いに隣り合う単電池11が逆向きになるように配置されており、これにより、互いに異極の電極端子12A,12Bが隣り合うように構成されている。これら複数の単電池11は図示しない保持板によって固定されている。
このように構成された単電池群13は電極端子12A,12Bが前後2列に並んでおり、各列に対して接続部材14を左右に並んで組み付けることにより、複数の単電池11が直列に接続される。
The direction of the polarity (positive / negative) of each unit cell 11 is arranged so that the unit cells 11 adjacent to each other are opposite to each other, so that the electrode terminals 12A and 12B having different polarities are adjacent to each other. ing. The plurality of single cells 11 are fixed by a holding plate (not shown).
In the unit cell group 13 configured in this way, the electrode terminals 12A and 12B are arranged in two rows in the front and rear, and a plurality of unit cells 11 are connected in series by assembling the connection members 14 side by side to each row. Connected.
(接続部材)
複数の接続部材14は、銅、銅合金、アルミニウム等の金属板材からなり、図7に示すように、コネクタ35を介して接続される隣り合う2個の接続部材14A,14Bが互いに対称となるように形成されている。
各接続部材14(14A,14B)は、共に、電極端子12A,12B間を接続する長方形状の平板部15と、平板部15に一体に形成されコネクタ35側に接続されるコネクタ接続部17とを備える。
平板部15には、左右一対の通し孔16,16が貫通形成されている。通し孔16,16は、やや左右方向に長い長円形状をなす。
(Connecting member)
The plurality of connection members 14 are made of a metal plate material such as copper, copper alloy, and aluminum, and as shown in FIG. 7, two adjacent connection members 14A and 14B connected via the connector 35 are symmetrical to each other. It is formed as follows.
Each of the connecting members 14 (14A, 14B) includes a rectangular flat plate portion 15 for connecting the electrode terminals 12A, 12B, and a connector connecting portion 17 formed integrally with the flat plate portion 15 and connected to the connector 35 side. Is provided.
A pair of left and right through holes 16 are formed through the flat plate portion 15. The through holes 16 and 16 have an oval shape that is slightly long in the left-right direction.
コネクタ接続部17は、平板部15の長辺(接続部材14の接続方向に沿う辺)側の角部のうち、隣り合う接続部材14A,14Bにおけるコネクタ接続部17同士互いに近付く側に設けられている。
コネクタ接続部17は、第1コネクタ23の雄端子となる第1端子部18と、第1コネクタ23の第1ハウジング24を固定するための固定部20とを有する。
The connector connecting portion 17 is provided on the side of the long side (side along the connecting direction of the connecting member 14) side of the flat plate portion 15 on the side where the connector connecting portions 17 in the adjacent connecting members 14A and 14B approach each other. Yes.
The connector connecting portion 17 has a first terminal portion 18 that is a male terminal of the first connector 23 and a fixing portion 20 for fixing the first housing 24 of the first connector 23.
第1端子部18は、上方に突出する棒状の雄端子であって、その基端は、L字状に屈曲されて平板部15と面一に連なる板状部19とされている。
固定部20は、平板部15に面一に連なる板状部21と、板状部21からほぼ直角に屈曲された板状の固定片22とからなる。固定片22の先端部の角部は、テーパ状に切り欠かれている。
The first terminal portion 18 is a rod-shaped male terminal protruding upward, and a base end thereof is a plate-like portion 19 that is bent in an L shape and is flush with the flat plate portion 15.
The fixed portion 20 includes a plate-like portion 21 that is flush with the flat plate portion 15 and a plate-like fixed piece 22 that is bent substantially at right angles from the plate-like portion 21. A corner portion of the distal end portion of the fixed piece 22 is cut out in a tapered shape.
(電圧検知用電線)
電圧検知用電線Wは、導体部の周囲を絶縁被覆(絶縁層)で覆って構成されている。本実施形態においては、図2に示すように、2本の被覆電線が一体に形成された電圧検知用電線Wが端末部において2本に分けられており、それぞれ第2コネクタ30側に接続されている。
電圧検知用電線Wは、左右方向の一方の側に導出されて、外部の機器である電池ECU(図示しない)に導かれる。この電池ECUは、マイクロコンピュータ、素子等が搭載されたものであって、単電池11の電圧・電流・温度等の検知、各単電池11の充放電コントロール等を行うための機能を備えた周知の構成のものである。
(Voltage detection wire)
The voltage detection wire W is configured by covering the periphery of the conductor portion with an insulating coating (insulating layer). In the present embodiment, as shown in FIG. 2, the voltage detection wire W in which two covered wires are integrally formed is divided into two at the terminal portion, and each is connected to the second connector 30 side. ing.
The voltage detection electric wire W is led out to one side in the left-right direction and led to a battery ECU (not shown) which is an external device. The battery ECU is equipped with a microcomputer, an element, and the like, and has a function for detecting voltage, current, temperature, etc. of the unit cells 11 and controlling charge / discharge of each unit cell 11. Of the configuration.
(コネクタ)
複数のコネクタ35は、第1コネクタ23と、第1コネクタ23と嵌合する第2コネクタ30とを備えている。以下では、コネクタ35の前後方向については、手前側の列に取り付けられたコネクタ35の向きを基準として説明する。
(第1コネクタ)
第1コネクタ23は、図7に示すように、各接続部材14に連なる2個(複数個)の第1端子部18と、2個の第1端子部18が収容される1個の第1ハウジング24とを有する。
(connector)
The plurality of connectors 35 includes a first connector 23 and a second connector 30 that fits with the first connector 23. Hereinafter, the front-rear direction of the connector 35 will be described with reference to the direction of the connector 35 attached to the front row.
(First connector)
As shown in FIG. 7, the first connector 23 includes two (a plurality of) first terminal portions 18 connected to each connection member 14 and one first terminal in which the two first terminal portions 18 are accommodated. And a housing 24.
第1ハウジング24は、角筒状に上方に開口する筒状部25と、筒状部25の下方において幅方向に段差状に拡径された基部26とを備える。
筒状部25の内側には、棒状の第1端子部18が突出している。
筒状部25の内壁には、図12に示すように、第2コネクタ30のロック部37と係合して両コネクタ23,30をロック状態に保つ被ロック部25Aが設けられている。
基部26は、筒状部25を閉塞する奥壁26Aを有しており、この奥壁26Aには、第1端子部18が挿通される端子挿通孔27が貫通形成されている。
The first housing 24 includes a cylindrical portion 25 that opens upward in a rectangular tube shape, and a base portion 26 that is expanded in a step shape in the width direction below the cylindrical portion 25.
A rod-shaped first terminal portion 18 protrudes inside the tubular portion 25.
As shown in FIG. 12, the inner wall of the cylindrical portion 25 is provided with a locked portion 25A that engages with the lock portion 37 of the second connector 30 to keep both the connectors 23 and 30 in a locked state.
The base portion 26 has a back wall 26A that closes the cylindrical portion 25, and a terminal insertion hole 27 through which the first terminal portion 18 is inserted is formed through the back wall 26A.
また、基部26の底面側には、図12に示すように、固定片22が圧入される圧入孔28(圧入溝)が開口している。圧入孔28は、固定片22を底面側から圧入可能な大きさ及び深さで開口している。そして、固定片22が圧入孔28に圧入されて固定されることで、第1ハウジング24と接続部材14との間が相対的に位置決めされる。   Further, as shown in FIG. 12, a press-fitting hole 28 (press-fitting groove) into which the fixing piece 22 is press-fitted is opened on the bottom surface side of the base portion 26. The press-fitting hole 28 opens with a size and depth that allows the fixing piece 22 to be press-fitted from the bottom surface side. Then, the fixing piece 22 is press-fitted into the press-fitting hole 28 and fixed, so that the first housing 24 and the connection member 14 are relatively positioned.
(第2コネクタ)
第2コネクタ30は、図6に示すように、電圧検知用電線Wの端末部に接続された2個(複数個)の第2端子部31と、2個の第2端子部31が収容される第2ハウジング34とを有する。
第2端子部31は、雌型の端子(雌端子)であって、第1端子部18と接続される端子接続部32と、端子接続部32に連なり電圧検知用電線Wが接続される電線接続部33とを備える。
(Secondary connector)
As shown in FIG. 6, the second connector 30 accommodates two (a plurality of) second terminal portions 31 connected to the terminal portion of the voltage detection wire W and two second terminal portions 31. And a second housing 34.
The second terminal portion 31 is a female terminal (female terminal), and a terminal connection portion 32 connected to the first terminal portion 18 and a wire connected to the terminal connection portion 32 and connected to the voltage detection wire W. And a connection unit 33.
端子接続部32は、箱形の角筒部の内部に、弾性変形可能な折り返し片が設けられており、角筒部の内部に第1端子部18が進入すると、第1端子部18が折り返し片に当接して折り返し片を弾性変形させ、その弾性力で第1端子部18と第2端子部31との間に接触圧を生じさせて電気的に接続する。
電線接続部33は、電圧検知用電線Wの端末部において絶縁被覆(絶縁層)を剥ぎ取り露出させた導体を圧着等の公知の接続手段により接続している。
The terminal connecting portion 32 is provided with a returnable elastically folded piece inside a box-shaped square tube portion. When the first terminal portion 18 enters the inside of the square tube portion, the first terminal portion 18 is folded back. The folded piece is elastically deformed by coming into contact with the piece, and a contact pressure is generated between the first terminal portion 18 and the second terminal portion 31 by the elastic force to electrically connect them.
The electric wire connecting portion 33 is connected to a conductor from which the insulation coating (insulating layer) is peeled and exposed at the end of the voltage detection electric wire W by a known connecting means such as crimping.
第2ハウジング34は、第1ハウジング24の筒状部25に嵌め入れられる嵌入部40と、嵌入部40の上端から鍔状に張り出し、作業者が摘むことが可能な摘み部36と、第1ハウジング24の被ロック部25Aにロックされるロック部37(図7)とを有する。
ロック部37は、ロックアーム38と、ロックアーム38の外面に設けられ第1ハウジング24の被ロック部25Aに係合してロック状態とするロック凸部39とを備えており、ロックアーム38を撓ませることにより、ロック状態の解除を行う。
The second housing 34 includes a fitting portion 40 that is fitted into the cylindrical portion 25 of the first housing 24, a hook portion 36 that protrudes in a hook shape from the upper end of the fitting portion 40 and can be picked by an operator, And a lock portion 37 (FIG. 7) that is locked to the locked portion 25 </ b> A of the housing 24.
The lock portion 37 includes a lock arm 38 and a lock convex portion 39 that is provided on the outer surface of the lock arm 38 and engages with the locked portion 25A of the first housing 24 to be locked. The locked state is released by bending.
次に、電池モジュール10の組み付けについて説明する。
各接続部材14の各通し孔16,16を単電池群13の隣り合う電極端子12A,12Bに挿通する。そして、隣り合う2個の接続部材14に対して1個の第1ハウジング24を、一対の端子挿通孔27に2個の第1端子部18が挿通され一対の圧入孔28に2個の固定片22が圧入されるように組み付ける作業を順番に行う。これにより、4個(複数)の第1コネクタ23が形成される。
Next, assembly of the battery module 10 will be described.
The through holes 16 and 16 of the connection members 14 are inserted into the adjacent electrode terminals 12A and 12B of the unit cell group 13, respectively. Then, the two first terminal portions 18 are inserted into the pair of terminal insertion holes 27 and the two first fixing portions are fixed to the pair of press-fitting holes 28 with respect to the two adjacent connection members 14. The assembly work is performed in order so that the pieces 22 are press-fitted. As a result, four (plural) first connectors 23 are formed.
次に、電圧検知用電線Wの端末部に設けられた第2コネクタ30を第1コネクタ23に嵌合させる。これにより、両コネクタ23,30がロック部37と被ロック部25Aによりロック状態となるとともに、接続部材14と電圧検知用電線Wとが第1端子部18及び第2端子部31を介して電気的に接続される(図1)。そして、電極端子12A,12Bをナットで締結して各接続部材14を単電池群13に固定することにより、電池モジュール10が形成される。
なお、電池モジュール10の組み付け方法は、上記方法に限らず、例えば、接続部材14と第1ハウジング24とを組み付けて接続部材14と一体になった第1コネクタ23を複数形成した後に、この複数の第1コネクタ23と一体の接続部材14を単電池群13に組み付けるようにすることも可能である。
Next, the second connector 30 provided at the terminal portion of the voltage detection wire W is fitted into the first connector 23. As a result, both the connectors 23 and 30 are locked by the locking portion 37 and the locked portion 25A, and the connection member 14 and the voltage detection wire W are electrically connected via the first terminal portion 18 and the second terminal portion 31. Connected (FIG. 1). And the battery module 10 is formed by fastening electrode terminal 12A, 12B with a nut, and fixing each connection member 14 to the cell group 13. FIG.
The method for assembling the battery module 10 is not limited to the above method. For example, after the connection member 14 and the first housing 24 are assembled to form a plurality of first connectors 23 integrated with the connection member 14, the plurality of the plurality of first connectors 23 are formed. It is also possible to attach the connecting member 14 integrated with the first connector 23 to the unit cell group 13.
上記実施形態の構成によれば、以下の作用・効果を奏する。
(1)正極及び負極の電極端子12A,12Bを有する複数の単電池11において隣り合う電極端子12A,12B間を接続する接続部材14と、電池ECU(単電池11の状態を検知するための機器)に連なる電圧検知用電線W(電線)との接続構造及び電池モジュール10であって、接続部材14に連なる第1端子部18と、第1端子部18が収容される第1ハウジング24と、を有する第1コネクタ23と、電圧検知用電線Wの端末部に接続される第2端子部31と、第2端子部31が収容される第2ハウジング34と、を有する第2コネクタ30と、を備え、第1コネクタ23と第2コネクタ30とのコネクタ嵌合により、接続部材14と電圧検知用電線Wとが電気的に接続されるように構成されている。
According to the structure of the said embodiment, there exist the following effects.
(1) A connecting member 14 for connecting adjacent electrode terminals 12A and 12B in a plurality of unit cells 11 having positive and negative electrode terminals 12A and 12B, and a battery ECU (device for detecting the state of the unit cell 11) ) And the battery module 10 connected to the voltage detection electric wire W (electric wire), the first terminal portion 18 connected to the connecting member 14, and the first housing 24 in which the first terminal portion 18 is accommodated, A second connector 30 having a first connector 23, a second terminal portion 31 connected to a terminal portion of the voltage detection wire W, and a second housing 34 in which the second terminal portion 31 is accommodated, And the connection member 14 and the voltage detection wire W are electrically connected by the connector fitting of the first connector 23 and the second connector 30.
本実施形態によれば、電極端子12A,12B間を接続する接続部材14と、電池ECUに連なる電圧検知用電線Wと、がコネクタ嵌合により電気的に接続されるため、接続部材14と電圧検知用電線Wとの接続や取り外しの作業性を向上させることが可能となる。   According to the present embodiment, the connection member 14 that connects the electrode terminals 12A and 12B and the voltage detection wire W connected to the battery ECU are electrically connected by connector fitting. It becomes possible to improve workability of connection and removal with the electric wire W for detection.
(2)第1端子部18は、接続部材14と一体に形成された雄端子であり、第2端子部31は、雄端子に接続される雌端子である。
このようにすれば、雄端子を接続部材14と一体に形成することで、例えば、雌端子のような雄端子よりも複雑な構成を接続部材14と一体に形成する場合と比較して接続部材14と電圧検知用電線Wとの接続構造や電池モジュール10を簡素化することが可能になる。
(2) The first terminal portion 18 is a male terminal formed integrally with the connection member 14, and the second terminal portion 31 is a female terminal connected to the male terminal.
In this way, by forming the male terminal integrally with the connection member 14, for example, the connection member is more complicated than the case of forming the structure more complex than the male terminal such as the female terminal integrally with the connection member 14. 14 and the voltage detection wire W and the battery module 10 can be simplified.
(3)接続部材14には、第1ハウジング24を接続部材14に対して固定する固定部20が一体に形成されている。
このようにすれば、簡素な構成で第1ハウジング24を接続部材14に対して固定することが可能になる。
(3) The connecting member 14 is integrally formed with a fixing portion 20 that fixes the first housing 24 to the connecting member 14.
If it does in this way, it will become possible to fix the 1st housing 24 to connection member 14 by simple composition.
(4)第1コネクタ23は、1個の第1ハウジング24に隣り合う2個の接続部材14のそれぞれに連なる2個の第1端子部18が収容されている。
このようにすれば、2個の第1端子部18が1個の第1ハウジング24に収容されるため、接続部材14と電圧検知用電線Wとの接続構造や電池モジュール10を簡素化することが可能になる。
(4) The first connector 23 accommodates two first terminal portions 18 connected to each of the two connecting members 14 adjacent to one first housing 24.
In this way, since the two first terminal portions 18 are accommodated in the single first housing 24, the connection structure between the connection member 14 and the voltage detection wire W and the battery module 10 can be simplified. Is possible.
<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る。
(1)上記実施形態では、2個の接続部材14に対して1個のコネクタ35が接続される構成であったが、これに限られず、1個、又は、3個以上の接続部材14に対して1個のコネクタ35が接続されるようにしてもよい。
<Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.
(1) In the above embodiment, one connector 35 is connected to the two connecting members 14, but the present invention is not limited to this, and one or three or more connecting members 14 are connected. On the other hand, one connector 35 may be connected.
(2)電池モジュール10を構成する単電池11の数については、上記実施形態の個数に限られず、7個以下、又は9個以上とすることも可能である。また、第1コネクタ23の個数についても、単電池11の数に応じて適宜個数を変更することができる。また、必ずしも全ての2個の接続部材14に対応させて1個の第1ハウジング24を設けなくてもよい。例えば、1個の接続部材14に1個の第1ハウジングを設けるものと2個の接続部材14に1個の第1ハウジング24を設けるものとの双方を有するようにしてもよい。 (2) About the number of the single cells 11 which comprise the battery module 10, it is not restricted to the number of the said embodiment, It is also possible to set it as 7 or less, or 9 or more. In addition, the number of first connectors 23 can be changed as appropriate according to the number of unit cells 11. Further, it is not always necessary to provide one first housing 24 corresponding to all the two connection members 14. For example, one connecting member 14 may be provided with one first housing and two connecting members 14 may be provided with one first housing 24.
(3)上記実施形態では、第1端子部18を雄型とし、第2端子部31を雌型としたが、これに限らず、第1端子部を雌型とし、第2端子部を雄型としてもよい。
(4)上記実施形態では、電極端子12A,12Bに接続部材14を挿通してナットで締結する構成であったが、これに限らず、単電池11がナット型の電極端子12A,12Bを備える構成とし、ボルトをナット型の電極端子12A,12Bに締結するようにしてもよい。
(3) In the above embodiment, the first terminal portion 18 is a male type and the second terminal portion 31 is a female type. However, the present invention is not limited thereto, and the first terminal portion is a female type and the second terminal portion is a male type. It is good also as a type.
(4) In the above embodiment, the connection member 14 is inserted into the electrode terminals 12A and 12B and fastened with nuts. A bolt may be fastened to the nut type electrode terminals 12A and 12B.
(5)上記実施形態では、第2コネクタ30は、単電池の電圧を検知するための電圧検知用電線Wに接続されていたが、電圧を検知するものに限らず、単電池11の状態(例えば電流や温度等)を検知するための電線に接続されるコネクタに本発明を適用することも可能である。
(6)上記実施形態では、接続部材14は、異極の電極端子12A,12Bを接続(直列接続)するものとしたが、これに限られず、同極の電極端子12A(12B)を接続(並列接続)するものでもよい。例えば、上記実施形態の電池モジュール10に更に別の単電池11を並列接続し、この並列接続における同極の電極端子12A(12B)を複数の接続部材で接続し、その接続部材と電線とをコネクタで接続するようにしてもよい。
(5) In the said embodiment, although the 2nd connector 30 was connected to the electric wire W for voltage detection for detecting the voltage of a cell, it is not restricted to what detects a voltage, but the state of the cell 11 ( For example, the present invention can be applied to a connector connected to an electric wire for detecting current, temperature, and the like.
(6) In the above embodiment, the connection member 14 connects (series connection) the electrode terminals 12A and 12B of different polarities, but is not limited thereto, and connects the electrode terminals 12A (12B) of the same polarity ( (Parallel connection). For example, another unit cell 11 is connected in parallel to the battery module 10 of the above embodiment, and the electrode terminals 12A (12B) of the same polarity in this parallel connection are connected by a plurality of connecting members, and the connecting member and the electric wire are connected. You may make it connect with a connector.
10…電池モジュール
11…単電池
12A,12B…電極端子
13…単電池群
14(14A,14B)…接続部材
17…コネクタ接続部
18…第1端子部
20…固定部
22…固定片
23…第1コネクタ
25…筒状部
26…基部
27…端子挿通孔
28…圧入孔
30…第2コネクタ
31…第2端子部
34…第2ハウジング
35…コネクタ
W…電圧検知用電線(電線)
DESCRIPTION OF SYMBOLS 10 ... Battery module 11 ... Cell 12A, 12B ... Electrode terminal 13 ... Cell group 14 (14A, 14B) ... Connection member 17 ... Connector connection part 18 ... 1st terminal part 20 ... Fixing part 22 ... Fixing piece 23 ... 1st DESCRIPTION OF SYMBOLS 1 Connector 25 ... Cylindrical part 26 ... Base 27 ... Terminal insertion hole 28 ... Press-fit hole 30 ... 2nd connector 31 ... 2nd terminal part 34 ... 2nd housing 35 ... Connector W ... Electric wire for voltage detection (electric wire)

Claims (6)

  1. 正極及び負極の電極端子を有する複数の単電池において隣り合う前記電極端子間を接続する接続部材と、前記単電池の状態を検知するための機器に連なる電線と、の接続構造であって、
    前記接続部材に連なる第1端子部と、前記第1端子部が収容される第1ハウジングと、を有する第1コネクタと、
    前記電線の端末部に接続される第2端子部と、前記第2端子部が収容される第2ハウジングと、を有する第2コネクタと、を備え、
    前記第1コネクタと前記第2コネクタとのコネクタ嵌合により、前記接続部材と前記電線とが電気的に接続されるように構成されており、
    前記接続部材には、前記第1ハウジングを前記接続部材に対して固定する固定部が一体に形成されている接続部材と電線との接続構造。
    A connection structure for connecting between the electrode terminals adjacent to each other in a plurality of unit cells having positive and negative electrode terminals, and an electric wire connected to a device for detecting the state of the unit cell,
    A first connector having a first terminal portion connected to the connection member, and a first housing in which the first terminal portion is accommodated;
    A second connector having a second terminal part connected to the terminal part of the electric wire, and a second housing in which the second terminal part is accommodated,
    The connection member and the electric wire are configured to be electrically connected by connector fitting between the first connector and the second connector ,
    A connection structure between a connection member and an electric wire, in which a fixing portion for fixing the first housing to the connection member is integrally formed on the connection member.
  2. 正極及び負極の電極端子を有する複数の単電池において隣り合う前記電極端子間を接続する接続部材と、前記単電池の状態を検知するための機器に連なる電線と、の接続構造であって、
    前記接続部材に連なる第1端子部と、前記第1端子部が収容される第1ハウジングと、を有する第1コネクタと、
    前記電線の端末部に接続される第2端子部と、前記第2端子部が収容される第2ハウジングと、を有する第2コネクタと、を備え、
    前記第1コネクタと前記第2コネクタとのコネクタ嵌合により、前記接続部材と前記電線とが電気的に接続されるように構成されており、
    前記第1コネクタは、1個の前記第1ハウジングに、隣り合う2個の接続部材のそれぞれに連なる2個の第1端子部が収容されている接続部材と電線との接続構造。
    A connection structure for connecting between the electrode terminals adjacent to each other in a plurality of unit cells having positive and negative electrode terminals, and an electric wire connected to a device for detecting the state of the unit cell,
    A first connector having a first terminal portion connected to the connection member, and a first housing in which the first terminal portion is accommodated;
    A second connector having a second terminal part connected to the terminal part of the electric wire, and a second housing in which the second terminal part is accommodated,
    The connection member and the electric wire are configured to be electrically connected by connector fitting between the first connector and the second connector,
    The first connector is a connection structure between a connection member and an electric wire in which two first terminal portions connected to each of two adjacent connection members are accommodated in one first housing .
  3. 前記第1端子部は、前記接続部材と一体に形成された雄端子であり、前記第2端子部は、前記雄端子に接続される雌端子である請求項1又は請求項2に記載の接続部材と電線との接続構造。 The connection according to claim 1 or 2, wherein the first terminal portion is a male terminal formed integrally with the connection member, and the second terminal portion is a female terminal connected to the male terminal. Connection structure between members and electric wires.
  4. 正極及び負極の電極端子を有する複数の単電池において隣り合う前記電極端子間を接続する接続部材と、前記単電池の状態を検知するための機器に連なる電線と、が接続されてなる電池モジュールであって、
    前記接続部材に連なる第1端子部と、前記第1端子部が収容される第1ハウジングと、を有する第1コネクタと、
    前記電線の端末部に接続される第2端子部と、前記第2端子部が収容される第2ハウジングと、を有する第2コネクタと、を備え、
    前記第1コネクタと前記第2コネクタとのコネクタ嵌合により、前記接続部材と前記電線とが電気的に接続され、
    前記接続部材には、前記第1ハウジングを前記接続部材に対して固定する固定部が一体に形成されている電池モジュール。
    A battery module in which a connecting member for connecting between the electrode terminals adjacent to each other in a plurality of unit cells having positive and negative electrode terminals and an electric wire connected to a device for detecting the state of the unit cell are connected. There,
    A first connector having a first terminal portion connected to the connection member, and a first housing in which the first terminal portion is accommodated;
    A second connector having a second terminal part connected to the terminal part of the electric wire, and a second housing in which the second terminal part is accommodated,
    By the connector fitting of the first connector and the second connector, the connection member and the electric wire are electrically connected,
    The battery module , wherein the connection member is integrally formed with a fixing portion that fixes the first housing to the connection member .
  5. 正極及び負極の電極端子を有する複数の単電池において隣り合う前記電極端子間を接続する接続部材と、前記単電池の状態を検知するための機器に連なる電線と、が接続されてなる電池モジュールであって、
    前記接続部材に連なる第1端子部と、前記第1端子部が収容される第1ハウジングと、を有する第1コネクタと、
    前記電線の端末部に接続される第2端子部と、前記第2端子部が収容される第2ハウジングと、を有する第2コネクタと、を備え、
    前記第1コネクタと前記第2コネクタとのコネクタ嵌合により、前記接続部材と前記電線とが電気的に接続され
    前記第1コネクタは、1個の前記第1ハウジングに隣り合う2個の接続部材のそれぞれに連なる2個の第1端子部が収容されている電池モジュール。
    A battery module in which a connecting member for connecting between the electrode terminals adjacent to each other in a plurality of unit cells having positive and negative electrode terminals and an electric wire connected to a device for detecting the state of the unit cell are connected. There,
    A first connector having a first terminal portion connected to the connection member, and a first housing in which the first terminal portion is accommodated;
    A second connector having a second terminal part connected to the terminal part of the electric wire, and a second housing in which the second terminal part is accommodated,
    By the connector fitting of the first connector and the second connector, the connection member and the electric wire are electrically connected ,
    The first connector is a battery module in which two first terminal portions connected to two connecting members adjacent to one first housing are accommodated .
  6. 前記第1端子部は、前記接続部材と一体に形成された雄端子であり、前記第2端子部は、前記雄端子に接続される雌端子である請求項4又は請求項5に記載の電池モジュール。 The battery according to claim 4, wherein the first terminal portion is a male terminal formed integrally with the connection member, and the second terminal portion is a female terminal connected to the male terminal. module.
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