JP6162369B2 - Power supply - Google Patents

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JP6162369B2
JP6162369B2 JP2012119008A JP2012119008A JP6162369B2 JP 6162369 B2 JP6162369 B2 JP 6162369B2 JP 2012119008 A JP2012119008 A JP 2012119008A JP 2012119008 A JP2012119008 A JP 2012119008A JP 6162369 B2 JP6162369 B2 JP 6162369B2
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terminal
battery assembly
terminals
connection
pair
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JP2013246941A (en
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池田　智洋
智洋 池田
潤之 加藤
潤之 加藤
林　強
強 林
木村　健治
健治 木村
順多 片山
順多 片山
佐藤　勝則
勝則 佐藤
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Toyota Motor Corp
Yazaki Corp
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Toyota Motor Corp
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
    • 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

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  • Connection Of Batteries Or Terminals (AREA)
  • Battery Mounting, Suspending (AREA)

Description

本発明は、電源装置に関し、例えば、電気自動車やハイブリッド自動車等の電動機を駆動する直流電源として用いる電源装置に関する。   The present invention relates to a power supply apparatus, for example, a power supply apparatus used as a DC power supply for driving an electric motor such as an electric vehicle or a hybrid vehicle.

例えば、電動モータを用いて走行する電気自動車やエンジンと電動モータを併用して走行するハイブリッド自動車等には、電源装置が搭載される（特許文献１参照）。かかる電源装置は、前記電動モータに電力を供給するものであり、二次電池が複数直列接続された電池集合体と、前記電池集合体を互いの間に挟持する一対のエンドプレートと、前記電池集合体と前記電動モータとの間に配される電気接続箱（ジャンクションボックス）を備えて構成される。電気接続箱は、電池集合体と電動モータとの接続をオン・オフ制御するリレー及び回路を備えている。この場合、リレーはアッパーカバーで保持され、回路はロアカバーで保持されており、これらのアッパーカバー及びロアカバーを相互に組み付けて電気接続箱が構成されている。   For example, a power supply device is mounted on an electric vehicle that travels using an electric motor or a hybrid vehicle that travels using both an engine and an electric motor (see Patent Document 1). The power supply device supplies power to the electric motor, and includes a battery assembly in which a plurality of secondary batteries are connected in series, a pair of end plates that sandwich the battery assembly between each other, and the battery An electric connection box (junction box) arranged between the assembly and the electric motor is provided. The electrical junction box includes a relay and a circuit for controlling on / off of the connection between the battery assembly and the electric motor. In this case, the relay is held by the upper cover, and the circuit is held by the lower cover, and the upper cover and the lower cover are assembled to each other to constitute an electrical connection box.

このような従来の電源装置において、電池集合体と電気接続箱は、同一の取付面へネジ等により締結することによって固定されている。そして、電池集合体の総正極及び総負極にそれぞれ接続されたワイヤハーネスを電気接続箱のアッパーカバーに露出されたコネクタに接続させることで、これらの電池集合体と電気接続箱が電気的に接続されている。   In such a conventional power supply device, the battery assembly and the electrical junction box are fixed by being fastened to the same mounting surface with screws or the like. Then, by connecting the wire harness connected to each of the total positive electrode and the total negative electrode of the battery assembly to the connector exposed to the upper cover of the electrical junction box, these battery assemblies and the electrical junction box are electrically connected. Has been.

特開平１１−２９９１１５号公報JP-A-11-299115

しかしながら、上述したような電源装置の構成では、電池集合体からのワイヤハーネスをアッパーカバーのコネクタに対して接続させるため、ワイヤハーネスを取り回すためのスペースが電気接続箱の近傍、特にその上方に必要となる。また、ワイヤハーネスの接続後は、かかるスペースがデッドスペースとなるため、電源装置の省スペース化を図り難い。さらに、電源装置は、ワイヤハーネスの他、電気接続箱のアッパーカバー、ロアカバー、リレー及び回路等、部品点数が多く、組み付けに手間がかかるとともに、作業ミスを誘発するおそれもある。   However, in the configuration of the power supply device as described above, the wire harness from the battery assembly is connected to the connector of the upper cover, so that the space for routing the wire harness is in the vicinity of the electrical junction box, particularly above it. Necessary. In addition, since the space becomes a dead space after the wire harness is connected, it is difficult to save the space of the power supply device. In addition to the wire harness, the power supply device has a large number of parts such as an upper cover, a lower cover, a relay, and a circuit of the electrical connection box, and it takes time to assemble and may cause a work error.

本発明はこれを踏まえてなされたものであり、その解決しようとする課題は、電源装置の省スペース化と部品点数の削減を図ることにある。   The present invention has been made in view of this, and a problem to be solved is to save space of the power supply device and to reduce the number of parts.

上記課題を解決するため、本発明に係る電源装置は、複数の電池を束ねてなる電池集合体と、この電池集合体の束を挟持する一対のエンドプレートと、電池集合体と負荷との接続を制御する電気回路を保持するアッパーカバーを有してなる電気接続箱とを備え、一方のエンドプレートは、電池集合体と電気接続箱との間に介在され、該一方のエンドプレートには、電池集合体の一対の総電極にそれぞれ接続された一対の総電極端子と、この一対の総電極端子に接続される電気接続箱に設けられた一対の回路端子とを互いに接続する一対の接続端子が内設され、一対の接続端子は、一端に総電極端子が嵌入される端子接続口と、他端に回路端子が嵌入される端子接続口とを有してなり、エンドプレートの一対の接続端子の端子接続口に対応する位置には、総電極端子を嵌入するための開口部と、回路端子を嵌入するための開口部とがそれぞれ設けられてなることを特徴とする。 In order to solve the above problems, a power supply device according to the present invention includes a battery assembly formed by bundling a plurality of batteries, a pair of end plates that sandwich the bundle of battery assemblies, and a connection between the battery assembly and a load. and an electrical connection box comprising a upper cover which holds the electric circuit for controlling, one end plate is interposed between the battery assembly and the electric connection box, to one of the end-plates said the A pair of connections for connecting a pair of total electrode terminals respectively connected to a pair of total electrodes of the battery assembly and a pair of circuit terminals provided in an electrical connection box connected to the pair of total electrode terminals A terminal is provided, and the pair of connection terminals has a terminal connection port into which the total electrode terminal is inserted into one end and a terminal connection port into which the circuit terminal is inserted into the other end. Corresponds to the terminal connection port of the connection terminal The location, characterized the opening for fitting the total electrode terminals, that is an opening for fitting the circuit terminal are thus provided, respectively.

これによれば、電池集合体と電気接続箱をこれらの間に介在させたエンドプレートの接続端子を介して相互に接続させることができる。この結果、電源装置の省スペース化を図ることが可能となるとともに、部品点数の削減を図ることが可能となる。 According to this, the battery assembly and the electrical junction box can be connected to each other via the connection terminal of the end plate interposed between them. As a result, it is possible to save the space of the power supply device and to reduce the number of parts.

本発明によれば、電源装置の省スペース化を図ることができるとともに、部品点数の削減を図ることができる。   According to the present invention, it is possible to save the space of the power supply device and reduce the number of parts.

本発明の一実施形態に係る電源装置の構成部品を示す一部分解図である。It is a partial exploded view which shows the component of the power supply device which concerns on one Embodiment of this invention. 図１に示す構成部品を組み付けた後の電源装置の外観を示す斜視図である。It is a perspective view which shows the external appearance of the power supply device after attaching the component shown in FIG. 電気接続箱の構成を示す分解斜視図である。It is a disassembled perspective view which shows the structure of an electrical junction box. エンドプレートの全体構成を示す図である。It is a figure which shows the whole structure of an end plate. エンドプレートの雌端子の全体構成を示す斜視図である。It is a perspective view which shows the whole structure of the female terminal of an end plate. エンドプレートの雌端子の端子接続を説明するための模式図である。It is a schematic diagram for demonstrating the terminal connection of the female terminal of an end plate.

以下、本発明の電源装置について、添付図面を参照して説明する。本発明に係る電源装置は、例えば、電動モータを用いて走行する電気自動車やエンジンと電動モータを併用して走行するハイブリッド自動車等に搭載され、前記電動モータに電力を供給するものである。本実施形態においては、一例として、電源装置がかかる自動車等の車両に搭載される場合を想定して説明するが、電源装置の用途は特に限定されるものではない。   Hereinafter, a power supply device of the present invention will be described with reference to the accompanying drawings. The power supply device according to the present invention is mounted on, for example, an electric vehicle that travels using an electric motor, a hybrid vehicle that travels using an engine and an electric motor together, and supplies electric power to the electric motor. In the present embodiment, as an example, a case where the power supply device is mounted on a vehicle such as an automobile will be described. However, the use of the power supply device is not particularly limited.

図１及び図２には、本発明の一実施形態に係る電源装置の全体構成を示す。図１は、本発明の一実施形態に係る電源装置の構成部品を示す一部分解図であり、図２は、構成部品を組み付けた後の電源装置の外観を示す斜視図である。図１及び図２に示すように、電源装置は、電池が複数直列接続された電池集合体１と、電池集合体１と負荷との接続を制御するリレー２２及び回路２４（図３）、リレー２２及び回路２４を保持するアッパーカバー２６を有する電気接続箱（ジャンクションボックス）２と、電池集合体１と電気接続箱２の間に介在され、前記電池を束ねて保持するエンドプレート３とを備えている。   1 and 2 show the overall configuration of a power supply device according to an embodiment of the present invention. FIG. 1 is a partially exploded view showing components of a power supply device according to an embodiment of the present invention, and FIG. 2 is a perspective view showing an appearance of the power supply device after the components are assembled. As shown in FIGS. 1 and 2, the power supply device includes a battery assembly 1 in which a plurality of batteries are connected in series, a relay 22 and a circuit 24 (FIG. 3) that control connection between the battery assembly 1 and a load, and a relay. 22 and an electric connection box (junction box) 2 having an upper cover 26 for holding the circuit 24, and an end plate 3 interposed between the battery assembly 1 and the electric connection box 2 to hold the battery in a bundle. ing.

電池集合体１は、薄型に形成されたリチウム電池等の二次電池（以下、電池という。）を複数配列して構成されている。これらの電池は、正極と負極を隣り合わせて交互に配置し、隣り合う電池の正極と負極間がそれぞれバスバと称される導体で直列接続される。電池集合体１の電池の直列数は、所望の直流電圧に応じて定まり、電池集合体１の両端に位置される電池の正極（以下、総正極という。）と負極（同、総負極という。）が電池集合体１の直流出力となる。なお、電池の直列数が奇数の場合、電池集合体１の配列方向と交差する方向に対して互いに反対側に総正極と総負極が位置付けられ、直列数が偶数の場合、かかる方向に対して同一側に総正極と総負極が位置付けられる。   The battery assembly 1 is configured by arranging a plurality of secondary batteries (hereinafter referred to as batteries) such as lithium batteries formed in a thin shape. In these batteries, positive electrodes and negative electrodes are alternately arranged next to each other, and the positive electrodes and the negative electrodes of adjacent batteries are connected in series by conductors called bus bars. The number of batteries in the battery assembly 1 in series is determined according to the desired DC voltage, and the positive electrode (hereinafter referred to as the total positive electrode) and the negative electrode (hereinafter referred to as the total negative electrode) of the battery located at both ends of the battery assembly 1. ) Is the DC output of the battery assembly 1. In addition, when the number of series of batteries is an odd number, the total positive electrode and the total negative electrode are positioned opposite to each other with respect to the direction intersecting the arrangement direction of the battery assembly 1, and when the number of series is an even number, The total positive electrode and the total negative electrode are positioned on the same side.

複数の電池の正極と負極との間を接続する複数の導体は、絶縁部材（一例として、樹脂部材）により形成されたケース内に装着されたバスバモジュールとして形成することができる。例えば、電池集合体１の各電池の正極及び負極には、電池上面や電池側面から突出して設けられた柱状の電極端子（正極端子又は負極端子）を接続し、柱状の各電極端子の外面にネジ溝を形成する。そして、各導体には、隣り合う電池の正極端子と負極端子の位置に合わせて一対の穴を穿設し、導体の穴に各電極端子を挿し込んで各電極端子のネジにナットを螺合させて、導体を各電極端子に締結すればよい。なお、電池集合体１の両端に位置される電池の総正極又は総負極の柱状の電極端子は、隣り合う電池の電極端子とは接続せず、ワイヤハーネスやバスバ等の引出導体を接続させた構成とする。   The plurality of conductors connecting the positive and negative electrodes of the plurality of batteries can be formed as a bus bar module mounted in a case formed by an insulating member (for example, a resin member). For example, columnar electrode terminals (positive electrode terminal or negative electrode terminal) provided so as to protrude from the battery upper surface or the battery side surface are connected to the positive electrode and the negative electrode of each battery of the battery assembly 1, and the outer surfaces of the columnar electrode terminals are connected to each other. A thread groove is formed. Each conductor has a pair of holes that match the positions of the positive and negative terminals of the adjacent battery, and each electrode terminal is inserted into the hole of the conductor, and a nut is screwed onto the screw of each electrode terminal. The conductor may be fastened to each electrode terminal. In addition, the column-shaped electrode terminals of the total positive electrode or the total negative electrode of the battery located at both ends of the battery assembly 1 are not connected to the electrode terminals of the adjacent batteries, but are connected to lead conductors such as a wire harness and a bus bar. The configuration.

図３には、電気接続箱２の構成を分解斜視図で示す。電気接続箱２は、電池集合体１と負荷である電動モータとの間に流れる電流の分配や制御を行う。図３に示すように、電気接続箱２は、電池集合体１と負荷である電動モータとの接続を制御するリレー２２及び回路２４、リレー２２及び回路２４を保持するアッパーカバー２６を有している。リレー２２は、インバータを介して電動モータに電気を供給しており、インバータに供給する電池集合体１の出力を投入遮断するメインリレーを含んで構成されている。かかるメインリレーは、一対のリレー端子を有しており、一方のリレー端子は、回路２４を介して電池集合体１の総正極に接続され、他方のリレー端子は、回路２４を介して電池集合体１の総負極に接続される。   In FIG. 3, the structure of the electrical junction box 2 is shown with an exploded perspective view. The electrical junction box 2 performs distribution and control of the current flowing between the battery assembly 1 and the electric motor as a load. As shown in FIG. 3, the electrical junction box 2 includes a relay 22 and a circuit 24 that control connection between the battery assembly 1 and an electric motor that is a load, and an upper cover 26 that holds the relay 22 and the circuit 24. Yes. The relay 22 supplies electricity to the electric motor via an inverter, and includes a main relay that turns on and off the output of the battery assembly 1 supplied to the inverter. The main relay has a pair of relay terminals. One relay terminal is connected to the total positive electrode of the battery assembly 1 via the circuit 24, and the other relay terminal is connected to the battery assembly via the circuit 24. Connected to the total negative electrode of the body 1.

図３に示すように、本実施形態において、回路２４は、導体平板を打ち抜き加工や折り曲げ加工等したバスバとして構成されている。また、回路２４は、メインリレーを投入する前に電池集合体１の出力を所定時間だけ投入するプリチャージ回路及びその他の制御回路を含んで構成されている。なお、プリチャージ回路は、例えば、メインリレーと並列に接続され、メインリレーを投入する前にインバータへの充電電流を限流して供給し、初期充電終了後にメインリレーを投入する機能を有する。   As shown in FIG. 3, in this embodiment, the circuit 24 is configured as a bus bar obtained by punching or bending a conductive flat plate. The circuit 24 includes a precharge circuit that turns on the output of the battery assembly 1 for a predetermined time before turning on the main relay, and other control circuits. The precharge circuit is connected in parallel with the main relay, for example, and has a function of supplying a current to the inverter by limiting the charging current before turning on the main relay and turning on the main relay after the end of the initial charging.

アッパーカバー２６は、リレー２２及び回路２４を収容するとともに保護するためのカバー部材であり、樹脂等で構成される。アッパーカバー２６は、所定方向（一例として、電気接続箱２とエンドプレート３との固定方向）の両側にリレー２２及び回路２４を収容する収容部を有しており、所定方向の一方側の収容部に回路２４が取り付けられ、所定方向の他方側の収容部にリレー２２が取り付けられる。この場合、所定方向の一方側が電気接続箱２のエンドプレート３への固定側、他方側がかかる固定側とは反対側に相当する。なお、アッパーカバー２６の収容部へのリレー２２及び回路２４の取付方法は特に限定されず、例えば、嵌合や締結、接合など任意の方法を適用することができる。   The upper cover 26 is a cover member for housing and protecting the relay 22 and the circuit 24, and is made of resin or the like. The upper cover 26 has accommodating portions for accommodating the relay 22 and the circuit 24 on both sides in a predetermined direction (for example, a fixing direction of the electric junction box 2 and the end plate 3), and is accommodated on one side in the predetermined direction. The circuit 24 is attached to the part, and the relay 22 is attached to the accommodating part on the other side in the predetermined direction. In this case, one side in the predetermined direction corresponds to the fixed side to the end plate 3 of the electrical junction box 2, and the other side corresponds to the side opposite to the fixed side. In addition, the attachment method of the relay 22 and the circuit 24 to the accommodating part of the upper cover 26 is not specifically limited, For example, arbitrary methods, such as a fitting, fastening, and joining, are applicable.

図４には、エンドプレート３の全体構成を示す。エンドプレート３は、電池集合体１の電池の配列方向の両端部に一対をなして設けられ、配列された複数の電池を束ねるための板状の部材である。なお、図１及び図２には、電池集合体１の電池の配列方向の一端側で電池集合体１と電気接続箱２の間に介在されるエンドプレート３のみを示しているが、他端側にも同様のエンドプレートが設けられている。ただし、他端側のエンドプレートには、後述する雌端子は設けなくともよい。これら一対のエンドプレート３は、例えば、帯状に形成された締結バンドの両端部にそれぞれネジ等により締結することによって固定され、相互に連結される。これにより、一対のエンドプレート３間で電池集合体１を挟持させ、電池集合体１の複数の電池を束ねて保持することができる。   In FIG. 4, the whole structure of the end plate 3 is shown. The end plate 3 is a plate-like member that is provided in a pair at both ends in the battery arrangement direction of the battery assembly 1 and bundles a plurality of arranged batteries. 1 and 2 show only the end plate 3 interposed between the battery assembly 1 and the electrical junction box 2 on one end side of the battery assembly 1 in the battery arrangement direction. A similar end plate is also provided on the side. However, the end plate on the other end does not have to be provided with a female terminal to be described later. The pair of end plates 3 are fixed and connected to each other by, for example, fastening to both ends of a fastening band formed in a belt shape with screws or the like. Thereby, the battery assembly 1 can be held between the pair of end plates 3, and a plurality of batteries of the battery assembly 1 can be bundled and held.

本実施形態において、エンドプレート３は、電池集合体１の総正極及び総負極が接続された端子と電気接続箱２の対応する端子が接続される雌端子３１を有している。図５及び図６には、雌端子３１の全体構成を示す。図５は、雌端子３１の全体構成を示す斜視図であり、図６は、雌端子３１の端子接続を説明するための模式図である。雌端子３１は、所定の接続方向（図６に示す矢印６ａ,６ｂの方向）の両側に端子接続口３２を有する構造をなしている。すなわち、雌端子３１は、いわゆる雌−雌端子(ＦＦ端子)となっており、図６に示すように、接続方向の両側の端子接続口３２にそれぞれ接続端子（例えば、雄端子）６２,６４を嵌入させて、かかる接続端子６２,６４間を電気的に接続させる。本実施形態においては、雌端子３１に対する端子接続方向をエンドプレート３と電池集合体１及び電気接続箱２との固定方向と一致させている。すなわち、雌端子３１は、エンドプレート３の電池集合体１側と電気接続箱２側に端子接続口３２を臨ませている。   In the present embodiment, the end plate 3 has a female terminal 31 to which a terminal to which the total positive electrode and total negative electrode of the battery assembly 1 are connected and a corresponding terminal of the electrical connection box 2 are connected. 5 and 6 show the overall configuration of the female terminal 31. FIG. FIG. 5 is a perspective view showing the overall configuration of the female terminal 31, and FIG. 6 is a schematic diagram for explaining terminal connection of the female terminal 31. The female terminal 31 has a structure having terminal connection ports 32 on both sides in a predetermined connection direction (directions of arrows 6a and 6b shown in FIG. 6). That is, the female terminal 31 is a so-called female-female terminal (FF terminal), and as shown in FIG. 6, connection terminals (for example, male terminals) 62 and 64 are respectively connected to the terminal connection ports 32 on both sides in the connection direction. Is inserted, and the connection terminals 62 and 64 are electrically connected. In the present embodiment, the terminal connection direction with respect to the female terminal 31 is matched with the fixing direction of the end plate 3, the battery assembly 1, and the electrical connection box 2. That is, the female terminal 31 faces the terminal connection port 32 on the battery assembly 1 side and the electrical connection box 2 side of the end plate 3.

この場合、エンドプレート３は、図１に示すように２つの雌端子３１ａ,３１ｂを有しており、各雌端子３１ａ,３１ｂの端子接続口３２をエンドプレート３の電池集合体１側と電気接続箱２側にそれぞれ臨ませた構成となっている。換言すれば、エンドプレート３は、電池集合体１側に２つの雌端子３１ａ,３１ｂの一方側の端子接続口３２とそれぞれ連通する一対の開口部３４ａ,３４ｂを有し、電気接続箱２側に２つの雌端子３１ａ,３１ｂの他方側の端子接続口３２とそれぞれ連通する開口部３５ａ,３５ｂを有する構成となる。すなわち、雌端子３１ａ,３１ｂは、エンドプレート３の電池集合体１側と電気接続箱２側にそれぞれ形成された開口部３４,３５に端子接続口３２を臨ませるように設けられている。   In this case, the end plate 3 has two female terminals 31a and 31b as shown in FIG. 1, and the terminal connection port 32 of each female terminal 31a and 31b is electrically connected to the battery assembly 1 side of the end plate 3. It has a configuration that faces the connection box 2 side. In other words, the end plate 3 has a pair of openings 34a and 34b communicating with the terminal connection port 32 on one side of the two female terminals 31a and 31b on the battery assembly 1 side, Are provided with openings 35a and 35b communicating with the terminal connection port 32 on the other side of the two female terminals 31a and 31b, respectively. That is, the female terminals 31a and 31b are provided so that the terminal connection port 32 faces the openings 34 and 35 formed on the battery assembly 1 side and the electrical connection box 2 side of the end plate 3, respectively.

例えば、エンドプレート３は、２つの雌端子３１ａ,３１ｂを内設し、これらの雌端子３１ａ,３１ｂの端子接続口３２と連通するように、電池集合体１側に開口部３４ａ,３４ｂが形成されるとともに、電気接続箱２側に開口部３５ａ,３５ｂが形成されるように、樹脂等の絶縁部材により成形することができる。その際、エンドプレート３の内部は、肉で満たされた構造であってもよいし、所定の空間を形成するとともに、かかる空間に補強用のリブ等を設けた構造としても構わない。また、エンドプレート３に雌端子３１ａ,３１ｂを取り付けるための貫通孔を穿孔し、かかる貫通孔に雌端子３１ａ,３１ｂを嵌合させてエンドプレート３と一体化させる構成などとすることも可能である。この場合、貫通孔の両側の開口が開口部３４,３５に相当する。   For example, the end plate 3 includes two female terminals 31a and 31b, and openings 34a and 34b are formed on the battery assembly 1 side so as to communicate with the terminal connection ports 32 of the female terminals 31a and 31b. In addition, it can be formed by an insulating member such as a resin so that the openings 35a and 35b are formed on the electric junction box 2 side. At this time, the inside of the end plate 3 may be a structure filled with meat, or may be a structure in which a predetermined space is formed and a reinforcing rib or the like is provided in the space. Further, it is possible to form a through hole for attaching the female terminals 31a and 31b to the end plate 3, and to fit the female terminals 31a and 31b into the through plate so as to be integrated with the end plate 3. is there. In this case, the openings on both sides of the through hole correspond to the openings 34 and 35.

このような構成とすることで、雌端子３１ａ,３１ｂ自体は、エンドプレート３に埋設された状態となるため外部へ露出されることがなく、作業者等が直接接触できない構成となる。したがって、エンドプレート３を電池集合体１と電気的に接続させた場合であっても、作業者等が雌端子３１ａ,３１ｂ自体に触れることを確実に防止することができ、感電事故などの発生を抑止しつつ、作業の安全を図ることが可能となる。   By adopting such a configuration, the female terminals 31a and 31b themselves are embedded in the end plate 3 and thus are not exposed to the outside, so that an operator or the like cannot directly contact them. Therefore, even when the end plate 3 is electrically connected to the battery assembly 1, it is possible to reliably prevent an operator or the like from touching the female terminals 31 a and 31 b themselves and to generate an electric shock accident or the like. This makes it possible to ensure work safety.

そして、電池集合体１は、総正極及び総負極とそれぞれ接続され、雌端子３１ａ,３１ｂの電池集合体１側の端子接続口３２と接続される一対の雄端子を有している。本実施形態においては、上述したように、電池集合体１の両端に位置される電池の総正極又は総負極の柱状の電極端子には、ワイヤハーネスやバスバ等の引出導体が接続されている。この場合、かかる引出導体は、エンドプレート３の電池集合体１側の開口部３４ａ,３４ｂまで引き出されており、その先端部分には、エンドプレート３が取り付けられる取付面１２からエンドプレート３の開口部３４ａ,３４ｂへ向けて露出するように、上記雄端子が接続されている。一例として、総正極から引き出された引出導体と接続された雄端子（以下、総正極雄端子という。）は、開口部３４ａへ向けて露出され、総負極から引き出された引出導体と接続された雄端子（以下、総負極雄端子という。）は、開口部３４ｂへ向けて露出される。   The battery assembly 1 is connected to the total positive electrode and the total negative electrode, respectively, and has a pair of male terminals connected to the terminal connection ports 32 on the battery assembly 1 side of the female terminals 31a and 31b. In the present embodiment, as described above, lead conductors such as a wire harness and a bus bar are connected to the columnar electrode terminals of the total positive electrode or the total negative electrode of the battery located at both ends of the battery assembly 1. In this case, the lead conductor is drawn to the openings 34a, 34b of the end plate 3 on the battery assembly 1 side, and the opening of the end plate 3 is attached to the tip portion from the mounting surface 12 to which the end plate 3 is attached. The male terminal is connected so as to be exposed toward the portions 34a and 34b. As an example, a male terminal connected to a lead conductor drawn from the total positive electrode (hereinafter referred to as a total positive male terminal) is exposed toward the opening 34a and connected to a lead conductor drawn from the total negative electrode. The male terminal (hereinafter referred to as the total negative male terminal) is exposed toward the opening 34b.

これにより、一対のエンドプレート３を締結バンド等によって相互に連結させ、電池集合体１の電池を束ねて保持した状態において、電池集合体１の総正極雄端子は、開口部３４ａを介してエンドプレート３の雌端子３１ａの電池集合体１側の端子接続口３２と接続される。同様に、電池集合体１の総負極雄端子は、開口部３４ｂを介してエンドプレート３の雌端子３１ｂの電池集合体１側の端子接続口３２と接続される。したがって、この状態においては、電池集合体１の総正極雄端子及び総負極雄端子が外部へ露出された状態とはならず、短絡等の不具合が生じることを有効に防止することができる。   Thereby, in a state where the pair of end plates 3 are connected to each other by a fastening band or the like and the batteries of the battery assembly 1 are bundled and held, the total positive male terminals of the battery assembly 1 end through the openings 34a. The female terminal 31 a of the plate 3 is connected to the terminal connection port 32 on the battery assembly 1 side. Similarly, the total negative male terminal of the battery assembly 1 is connected to the terminal connection port 32 on the battery assembly 1 side of the female terminal 31b of the end plate 3 through the opening 34b. Therefore, in this state, the total positive male terminal and the total negative male terminal of the battery assembly 1 are not exposed to the outside, and it is possible to effectively prevent problems such as a short circuit from occurring.

一例として、本実施形態においては、電池集合体１に雄端子（総正極雄端子及び総負極雄端子）を突設させてエンドプレート３の雌端子３１ａ,３１ｂと接続させているが、例えば、電池集合体１にも雄端子ではなく雌端子を内設した構成とすることも可能である。この場合、電池集合体１の雌端子とエンドプレート３の雌端子３１ａ,３１ｂの双方に嵌入可能な端子片（図６に示す接続端子６２,６４のようなもの）を介して電池集合体１の雌端子とエンドプレート３の雌端子３１ａ,３１ｂを接続させればよい。これにより、常に電池集合体１から雄端子が外部へ露出されることがなく、短絡や感電などの発生をより確実に抑止可能な構成とすることができる。   As an example, in the present embodiment, a male terminal (total positive male terminal and total negative male terminal) is protruded from the battery assembly 1 and connected to the female terminals 31a and 31b of the end plate 3. The battery assembly 1 may have a female terminal instead of a male terminal. In this case, the battery assembly 1 is connected via terminal pieces (such as connection terminals 62 and 64 shown in FIG. 6) that can be fitted into both the female terminals of the battery assembly 1 and the female terminals 31a and 31b of the end plate 3. And the female terminals 31a and 31b of the end plate 3 may be connected. As a result, the male terminal is not always exposed to the outside from the battery assembly 1, and a configuration in which occurrence of a short circuit or electric shock can be more reliably suppressed can be achieved.

なお、電池集合体１の総負極の電極端子には、各電池の電圧を検出する電圧検出端子を引出導体と共締めして接続させればよい。そして、電圧検出端子には、電圧検出電線を圧着接続し、電池集合体１の電気接続箱２側、その反対側、もしくは電池集合体１の上面等に配置された電子制御ユニット（ＥＣＵ）と接続させればよい。例えば、電子制御ユニット（ＥＣＵ）が電池集合体１の電気接続箱２側に配置されている場合、エンドプレート３に対して電池集合体１と電気接続箱２との接続用の雌端子３１ａ,３１ｂに加えて、上記電圧検出線と電子制御ユニットとの接続用の端子を設けることも可能である。   In addition, what is necessary is just to connect the voltage detection terminal which detects the voltage of each battery to the electrode terminal of the total negative electrode of the battery assembly 1 together with an extraction conductor. A voltage detection wire is crimped to the voltage detection terminal, and an electronic control unit (ECU) disposed on the electric junction box 2 side of the battery assembly 1, the opposite side, or the upper surface of the battery assembly 1, and the like What is necessary is just to connect. For example, when the electronic control unit (ECU) is disposed on the electric junction box 2 side of the battery assembly 1, the female terminals 31 a for connecting the battery assembly 1 and the electric junction box 2 to the end plate 3 are provided. In addition to 31b, it is also possible to provide a terminal for connection between the voltage detection line and the electronic control unit.

また、電気接続箱２は、電池集合体１の雄端子（総正極雄端子及び総負極雄端子）と接続された雌端子３１ａ,３１ｂの電気接続箱２側の端子接続口３２と接続される一対の雄端子を有している。本実施形態においては、上述したように、電気接続箱２の回路２４にはメインリレーの一対のリレー端子が接続されている。したがって、上記雄端子は、回路２４を介してかかる一対のリレー端子と接続可能となるように、回路２４から開口部３５ａ,３５ｂへ向けて露出されている。   The electrical connection box 2 is connected to the terminal connection port 32 on the electrical connection box 2 side of the female terminals 31a and 31b connected to the male terminals (total positive male terminal and total negative male terminal) of the battery assembly 1. It has a pair of male terminals. In the present embodiment, as described above, the pair of relay terminals of the main relay is connected to the circuit 24 of the electrical junction box 2. Therefore, the male terminal is exposed from the circuit 24 toward the openings 35a and 35b so as to be connectable to the pair of relay terminals via the circuit 24.

これにより、電気接続箱２をエンドプレート３に対して位置決め固定することで、回路２４の一対の雄端子を開口部３５ａ,３５ｂを介して雌端子３１ａ,３１ｂの電気接続箱２側の端子接続口３２と接続させることができる。すなわち、回路２４の一対の雄端子をエンドプレート３の雌端子３１ａ,３１ｂを介して電池集合体１の総正極雄端子及び総負極雄端子と接続させることができる。以下、回路２４の一対の雄端子のうち、電池集合体１の総正極雄端子と接続される一方の雄端子を総正極側雄端子、総負極雄端子と接続される他方の雄端子を総負極側雄端子という。この結果、電池集合体１と電気接続箱２が相互に電気的に接続される。   Accordingly, the electrical connection box 2 is positioned and fixed with respect to the end plate 3, so that the pair of male terminals of the circuit 24 are connected to the terminals of the female terminals 31a and 31b on the side of the electrical connection box 2 through the openings 35a and 35b. It can be connected to the mouth 32. That is, the pair of male terminals of the circuit 24 can be connected to the total positive male terminal and the total negative male terminal of the battery assembly 1 via the female terminals 31 a and 31 b of the end plate 3. Hereinafter, of the pair of male terminals of the circuit 24, one male terminal connected to the total positive male terminal of the battery assembly 1 is the total positive male terminal, and the other male terminal connected to the total negative male terminal is the total. This is called the negative male terminal. As a result, the battery assembly 1 and the electrical junction box 2 are electrically connected to each other.

なお、電気接続箱２は、回路２４の雄端子を開口部３５ａ,３５ｂからエンドプレート３の雌端子３１ａ,３１ｂに嵌入させた後、エンドプレート３に対してボルト等で締結固定すればよい。これにより、電気接続箱２は、エンドプレート３に取り付けられ、該エンドプレート３を介在させた状態で電池集合体１と一体化される。また、本実施形態においては、電気接続箱２に雄端子（総正極側雄端子及び総負極側雄端子）を突設させてエンドプレート３の雌端子３１ａ,３１ｂと接続させているが、例えば、電気接続箱２にも雄端子ではなく雌端子を内設した構成とすることも可能である。この場合、電気接続箱２の雌端子とエンドプレート３の雌端子３１ａ,３１ｂの双方に嵌入可能な端子片（図６に示す接続端子６２,６４のようなもの）を介して電気接続箱２の雌端子とエンドプレート３の雌端子３１ａ,３１ｂを接続させればよい。   The electrical connection box 2 may be fastened and fixed to the end plate 3 with bolts or the like after the male terminals of the circuit 24 are fitted into the female terminals 31a and 31b of the end plate 3 through the openings 35a and 35b. Thereby, the electrical junction box 2 is attached to the end plate 3 and integrated with the battery assembly 1 with the end plate 3 interposed. In the present embodiment, male terminals (total positive-side male terminal and total negative-side male terminal) are protruded from the electrical connection box 2 and connected to the female terminals 31a and 31b of the end plate 3. The electrical connection box 2 may have a female terminal instead of a male terminal. In this case, the electrical connection box 2 is connected via terminal pieces (such as connection terminals 62 and 64 shown in FIG. 6) that can be fitted into both the female terminals of the electrical connection box 2 and the female terminals 31a and 31b of the end plate 3. And the female terminals 31a and 31b of the end plate 3 may be connected.

そして、このように電気接続箱２が取り付けられた状態において、エンドプレート３は、アッパーカバー２６で保持されたリレー２２及び回路２４を位置決め固定する。したがって、エンドプレート３を樹脂等の絶縁部材で構成することで、かかるエンドプレート３を電気接続箱２のロアカバーと同様の機能を兼ね備えた部材として構成することができる。これにより、電気接続箱２のロアカバーをエンドプレート３で代用でき、かかるロアカバーを別途設ける必要がなく、電源装置の部品点数を削減させることができる。   In the state where the electrical junction box 2 is attached in this way, the end plate 3 positions and fixes the relay 22 and the circuit 24 held by the upper cover 26. Therefore, by configuring the end plate 3 with an insulating member such as a resin, the end plate 3 can be configured as a member having the same function as the lower cover of the electrical junction box 2. As a result, the lower cover of the electrical connection box 2 can be replaced by the end plate 3, and it is not necessary to separately provide such a lower cover, and the number of parts of the power supply device can be reduced.

ここで、雌端子３１ａ,３１ｂの端子接続口３２と連通するエンドプレート３の電池集合体１側の開口部３４ａ,３４ｂの位置と、電池集合体１の総正極雄端子及び総負極雄端子の位置は、総正極雄端子を開口部３４ａへ嵌入させるとともに、総負極雄端子を開口部３４ｂへ嵌入させることが可能であれば、任意に設定することができる。同様に、かかるエンドプレート３の電気接続箱２側の開口部３５ａ,３５ｂの位置と、電気接続箱２における回路２４の一対の雄端子の位置は、総正極側雄端子を開口部３５ａへ嵌入させるとともに、総負極側雄端子を開口部３５ｂへ嵌入させることが可能であれば、任意に設定することができる。その際、エンドプレート３の電池集合体１側の開口部３４ａと電気接続箱２側の開口部３５ａは、電気集合体１の総正極雄端子と電気接続箱２における回路２４の総正極側雄端子とを雌端子３１ａを介して接続可能であれば、対称位置になくともよい。同様に、エンドプレート３の電池集合体１側の開口部３４ｂと電気接続箱２側の開口部３５ｂは、電気集合体１の総負極雄端子と電気接続箱２における回路２４の総負極側雄端子とを雌端子３１ｂを介して接続可能であれば、対称位置になくともよい。   Here, the positions of the openings 34a, 34b on the battery assembly 1 side of the end plate 3 communicating with the terminal connection ports 32 of the female terminals 31a, 31b, and the total positive male terminal and the total negative male terminal of the battery assembly 1 The position can be arbitrarily set as long as the total positive male terminal can be fitted into the opening 34a and the total negative male terminal can be fitted into the opening 34b. Similarly, the positions of the openings 35a and 35b on the electrical connection box 2 side of the end plate 3 and the positions of the pair of male terminals of the circuit 24 in the electrical connection box 2 are such that the total positive-side male terminal is inserted into the opening 35a. As long as the total negative electrode side male terminal can be fitted into the opening 35b, it can be set arbitrarily. At that time, the opening 34 a on the battery assembly 1 side of the end plate 3 and the opening 35 a on the electrical connection box 2 side are connected to the total positive male terminal of the electrical assembly 1 and the total positive side male of the circuit 24 in the electrical connection box 2. As long as the terminal can be connected to the terminal via the female terminal 31a, the terminal does not have to be in a symmetrical position. Similarly, the opening 34 b on the battery assembly 1 side of the end plate 3 and the opening 35 b on the electrical connection box 2 side are connected to the total negative male terminal of the electrical assembly 1 and the total negative side male of the circuit 24 in the electrical connection box 2. As long as the terminal can be connected to the terminal via the female terminal 31b, the terminal does not have to be in a symmetrical position.

このように、本実施形態に係る電源装置によれば、電池集合体１と電気接続箱２をこれらの間に介在させたエンドプレート３の雌端子３１ａ,３１ｂを介して相互に接続させることができる。したがって、電池集合体１と電気接続箱２との接続にあたって、ワイヤハーネス等を外部へ引き出す必要がなく、電池集合体１の総正極及び総負極から総正極雄端子及び総負極雄端子まで引出導体を引き出すだけで済むため、省線化を図ることができる。また、電池集合体１の外部においてワイヤハーネス等を取り回す必要もない。さらに、エンドプレート３で代用できるため、電気接続箱２のロアカバーも必要ない。   Thus, according to the power supply device according to the present embodiment, the battery assembly 1 and the electrical junction box 2 can be connected to each other via the female terminals 31a and 31b of the end plate 3 interposed therebetween. it can. Therefore, when connecting the battery assembly 1 and the electrical junction box 2, there is no need to pull out a wire harness or the like to the outside, and the lead conductor extends from the total positive electrode and total negative electrode of the battery assembly 1 to the total positive male terminal and total negative male terminal. Therefore, it is possible to reduce the number of wires. Further, it is not necessary to route a wire harness or the like outside the battery assembly 1. Furthermore, since the end plate 3 can be substituted, the lower cover of the electrical junction box 2 is not necessary.

この結果、電源装置の省スペース化を図ることができるとともに、部品点数の削減を図ることができる。これにより、例えば、電気接続箱２の近傍にワイヤハーネスを取り回すスペースは必要なく、かかるスペースがワイヤハーネスの接続後にデッドスペースとなることもない。このため、省スペース化を図ることができるだけでなく、かかるスペースを有効活用することも可能となる。また、部品点数の削減により、組み付け作業を簡略化することができ、作業ミスを防止することも可能となる。   As a result, the power supply device can be saved in space and the number of parts can be reduced. Thereby, for example, there is no need for a space around the electrical junction box 2 for the wiring harness, and such a space does not become a dead space after the wiring harness is connected. For this reason, not only can the space be saved, but also the space can be used effectively. Further, the reduction of the number of parts can simplify the assembling work and prevent work mistakes.

１ 電池集合体
２ 電気接続箱
２２ リレー
２４ 回路
２６ アッパーカバー
３１ 雌端子
３２ 端子接続口 1 Battery Assembly 2 Electrical Junction Box 22 Relay 24 Circuit 26 Upper Cover 31 Female Terminal 32 Terminal Connection Port

Claims (2)

複数の電池を束ねてなる電池集合体と、該電池集合体の束を挟持する一対のエンドプレートと、前記電池集合体と負荷との接続を制御する電気回路を保持するアッパーカバーを有する電気接続箱とを備えてなる電源装置において、
一方の前記エンドプレートは、前記電池集合体と前記電気接続箱との間に介在され、該一方のエンドプレートには、前記電池集合体の一対の総電極にそれぞれ接続された一対の総電極端子と、該一対の総電極端子に接続される前記電気接続箱に設けられた一対の回路端子とを互いに接続する一対の接続端子が内設され、該一対の接続端子は、一端に前記総電極端子が嵌入される端子接続口と、他端に前記回路端子が嵌入される端子接続口とを有してなり、
前記エンドプレートの前記一対の接続端子の前記端子接続口に対応する位置には、前記総電極端子を嵌入するための開口部と、前記回路端子を嵌入するための開口部とがそれぞれ設けられてなることを特徴とする電源装置。 An electrical connection having a battery assembly formed by bundling a plurality of batteries, a pair of end plates that sandwich the bundle of battery assemblies, and an upper cover that holds an electric circuit that controls connection between the battery assembly and a load In a power supply device comprising a box,
One of said end plates, wherein the battery assembly is interposed between the electrical connection box, on one end-plate said pair of total electrodes connected to the pair of the total electrodes of the battery assembly A pair of connection terminals for connecting the terminals and a pair of circuit terminals provided in the electrical connection box connected to the pair of total electrode terminals are provided internally, and the pair of connection terminals is connected to the total connection terminal at one end. A terminal connection port into which the electrode terminal is inserted, and a terminal connection port into which the circuit terminal is inserted into the other end;
An opening for inserting the total electrode terminal and an opening for inserting the circuit terminal are respectively provided at positions corresponding to the terminal connection ports of the pair of connection terminals of the end plate. A power supply device characterized by comprising: 前記接続端子は、２つの前記端子接続口がそれぞれ雌型をなし、
前記総電極端子と前記回路端子は、それぞれ前記接続端子の対応する前記端子接続口に嵌入される雄端子であることを特徴とする請求項１に記載の電源装置。 In the connection terminal, each of the two terminal connection ports has a female shape,
2. The power supply device according to claim 1, wherein the total electrode terminal and the circuit terminal are male terminals that are fitted into the terminal connection ports corresponding to the connection terminals, respectively.
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