JP2010272520A - Battery pack - Google Patents

Battery pack Download PDF

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Publication number
JP2010272520A
JP2010272520A JP2010097685A JP2010097685A JP2010272520A JP 2010272520 A JP2010272520 A JP 2010272520A JP 2010097685 A JP2010097685 A JP 2010097685A JP 2010097685 A JP2010097685 A JP 2010097685A JP 2010272520 A JP2010272520 A JP 2010272520A
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Japan
Prior art keywords
support plate
battery
longitudinal direction
support
battery module
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JP2010097685A
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Japanese (ja)
Inventor
Karuki Hamada
香留樹 浜田
Tadashi Shoji
忠 庄子
Yukari Tadokoro
ゆかり 田所
Taiichi Koyama
泰一 小山
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Nissan Motor Co Ltd
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Nissan Motor Co Ltd
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Priority to JP2010097685A priority Critical patent/JP2010272520A/en
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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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Abstract

<P>PROBLEM TO BE SOLVED: To provide a battery pack capable of easily adjusting the mounting position of a battery module by changing the position of a protrusion. <P>SOLUTION: The battery pack includes: long support plates 11 extending in the vertical direction while the battery pack is loaded in a vehicle; a plurality of pins 25 arranged with a predetermined interval therebetween in a vertical direction while projecting from the support plates 11; battery modules 3, 5 and 7 supported by the pins 25 wherein each battery module includes a plurality of batteries 9 provided side by side in a crosswise direction; and a pair of end plates 35 supporting each of the battery modules 3, 5 and 7 to the support plates 11 via the pins 25 while being disposed in each of the battery modules 3, 5 and 7. The height position of each of the battery modules 3, 5 and 7 is adjusted by changing the positions of the pins 25 in the vertical direction. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

本発明は、組電池に関し、さらに詳しくは、電気自動車等に搭載される組電池の構造に関する。   The present invention relates to an assembled battery, and more particularly to a structure of an assembled battery mounted on an electric vehicle or the like.

従来から、電池を複数配列させて電池モジュールとし、該電池モジュールを複数配列させて組電池を構成する技術が知られている（例えば、特許文献１参照）。特に、電気自動車においては、前記組電池を電気自動車に搭載してモータの駆動源としている。   2. Description of the Related Art Conventionally, a technique is known in which a plurality of batteries are arranged to form a battery module, and a plurality of the battery modules are arranged to form an assembled battery (see, for example, Patent Document 1). In particular, in an electric vehicle, the assembled battery is mounted on the electric vehicle to serve as a motor drive source.

特開２００７−２３４３６９号公報JP 2007-234369 A

しかしながら、従来の組電池は、挟着バーで電池モジュールを上下方向に挟着して固定するように構成されているため、前記電池モジュールの位置を変えることが困難であるという問題があった。   However, the conventional assembled battery is configured such that the battery module is sandwiched and fixed in the vertical direction by the sandwiching bar, and thus there is a problem that it is difficult to change the position of the battery module.

そこで、本発明は、電池モジュールの位置を容易に変えることができる組電池を提供するものである。   Therefore, the present invention provides an assembled battery that can easily change the position of a battery module.

本発明に係る組電池は、長尺状の支持プレートと、該支持プレートから突出して前記支持プレートの長手方向に所定間隔をおいて配置された複数の突設体と、これらの突設体に支持された電池モジュールと、を備え、前記突設体の前記支持プレートの長手方向に沿った位置を変えることにより、前記電池モジュールの取付位置を調整することを主要な特徴としている。なお、本発明における電池モジュールは、複数の電池から構成されるもののみならず、単体の電池から構成されるものも含むこととする。   An assembled battery according to the present invention includes a long support plate, a plurality of projecting bodies protruding from the support plate and arranged at predetermined intervals in the longitudinal direction of the support plate, and the projecting bodies. And a battery module supported by the battery module, wherein the mounting position of the battery module is adjusted by changing the position of the projecting body along the longitudinal direction of the support plate. In addition, the battery module in the present invention includes not only one constituted by a plurality of batteries but also one constituted by a single battery.

本発明に係る組電池によれば、支持プレートに対する突設体の取付位置を変えることにより、電池モジュールを取り付ける位置を容易に調整することができる。   According to the assembled battery according to the present invention, the position where the battery module is mounted can be easily adjusted by changing the mounting position of the protruding body with respect to the support plate.

本発明の実施形態にかかる組電池を示す斜視図であり、補機類を取り外した状態を示している。It is a perspective view which shows the assembled battery concerning embodiment of this invention, and has shown the state which removed auxiliary machinery. パレット治具に支持プレートを取り付けている状態を示す斜視図である。It is a perspective view which shows the state which has attached the support plate to the pallet jig | tool. パレット治具に支持プレートを取り付けた状態を示す斜視図である。It is a perspective view which shows the state which attached the support plate to the pallet jig | tool. 本発明の実施形態による電池モジュールにスリンガーブラケットを取り付けている状態を示す斜視図である。It is a perspective view which shows the state which has attached the slinger bracket to the battery module by embodiment of this invention. 電池モジュールを、パレット治具の支持プレートに取り付ける状態を示す斜視図である。It is a perspective view which shows the state which attaches a battery module to the support plate of a pallet jig. 組電池を側方から見た側面図である。It is the side view which looked at the assembled battery from the side.

以下、本発明の実施形態を図面と共に詳述する。なお、以下においては、電池を厚さ方向に複数配列した電池モジュールを上下に積重させた組電池について説明するが、単体の電池を上下に積重させた組電池にも本発明は適用可能である。   Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the following, an assembled battery will be described in which a plurality of battery modules arranged in the thickness direction are stacked up and down, but the present invention can also be applied to an assembled battery in which single batteries are stacked up and down. It is.

図１は、本発明の実施形態にかかる組電池を示す斜視図であり、補機類を取り外した状態を示している。   FIG. 1 is a perspective view showing an assembled battery according to an embodiment of the present invention, and shows a state in which auxiliary machinery is removed.

本実施形態による組電池１は、車両搭載状態における上下方向に積層された３段の電池モジュール３，５，７と、これらの電池モジュール３，５，７の側部に取り付けられた補機類（図示せず）とから構成されている。車両搭載状態では、車両前方側、車両後方側および車幅方向の向きは図１の矢印に示すように配置されている。前記電池モジュールは、最も上段に配置された上側電池モジュール３と、高さ方向中央側に配置された中央側電池モジュール５と、最も下段に配置された下側電池モジュール７と、から３段に構成されている。これらの電池モジュール３，５，７同士は、車両搭載状態における上下方向（支持プレート１１の長手方向）に延びる長尺状の支持プレート１１を介して連結されている。また、電池モジュール３，５，７はそれぞれ、板状の電池９を車幅方向に複数に並列させて連結することにより構成されている。さらに、前述した図外の補機類には、バッテリーコントローラ（例えば、リチウムイオンバッテリーコントローラ）や配線コードなどがある。   The assembled battery 1 according to this embodiment includes three-stage battery modules 3, 5, and 7 stacked in the vertical direction in a vehicle-mounted state, and auxiliary devices attached to the side portions of these battery modules 3, 5, and 7. (Not shown). In the vehicle mounted state, the vehicle front side, the vehicle rear side, and the vehicle width direction are arranged as shown by arrows in FIG. The battery module is divided into three stages from the upper battery module 3 arranged at the uppermost stage, the central battery module 5 arranged at the center in the height direction, and the lower battery module 7 arranged at the lowermost stage. It is configured. These battery modules 3, 5, and 7 are connected to each other via a long support plate 11 that extends in the vertical direction (longitudinal direction of the support plate 11) in the vehicle-mounted state. Each of the battery modules 3, 5, and 7 is configured by connecting a plurality of plate-like batteries 9 in parallel in the vehicle width direction. Further, the auxiliary machines not shown in the drawings include a battery controller (for example, a lithium ion battery controller) and a wiring cord.

補機類を取り外した組電池１の側部には、詳細に後述するエンドプレート３５と、該エンドプレート３５に接合された補強部材３７と、該補強部材３７の上から取り付けた取付プレート２１と、が設けられている。   On the side of the assembled battery 1 from which auxiliary equipment has been removed, an end plate 35 to be described in detail later, a reinforcing member 37 joined to the end plate 35, and a mounting plate 21 attached from above the reinforcing member 37, , Is provided.

図２はパレット治具に支持プレートを取り付けている状態を示す斜視図、および、図３はパレット治具に支持プレートを取り付けた状態を示す斜視図である。   FIG. 2 is a perspective view showing a state where the support plate is attached to the pallet jig, and FIG. 3 is a perspective view showing a state where the support plate is attached to the pallet jig.

パレット治具３１の表面には、両側に下方に凹む溝３１ｃが形成され、この溝３１ｃを挟んで端部３１ａおよび中央部３１ｄが設けられている。端部３１ａには、長尺状の支持プレート１１がボルト３３を介して固定される。この支持プレート１１は、側面視が略Ｗ字状に屈曲形成されており、その上面１１ａには、上方に突出するピン（突設体）２５が溶接によって接合されている。また、支持プレート１１は、一枚の平板を複数回に折り曲げ加工することによって、４つの面１１ａ，１１ｂ，１１ｃ，１１ｄ（図３参照）から側面視略Ｗ字状に一体形成されている。   On the surface of the pallet jig 31, grooves 31c recessed downward are formed on both sides, and an end portion 31a and a center portion 31d are provided across the groove 31c. A long support plate 11 is fixed to the end portion 31 a via a bolt 33. The support plate 11 is bent and formed in a substantially W shape in a side view, and a pin (projecting body) 25 protruding upward is joined to the upper surface 11a by welding. The support plate 11 is integrally formed in a substantially W shape in side view from the four surfaces 11a, 11b, 11c, and 11d (see FIG. 3) by bending a single flat plate a plurality of times.

図４は、本発明の実施形態による電池モジュールにスリンガーブラケットを取り付けている状態を示す斜視図である。   FIG. 4 is a perspective view illustrating a state in which the slinger bracket is attached to the battery module according to the embodiment of the present invention.

この電池モジュール３は、板状の電池９を板厚方向（横方向）に並設して結合し、その両端にエンドプレート（支持部材）３５，３５を配設している。また、電池９の上面の両側には、一対の長尺状のスタックメンバー４３，４３がボルト４５を介して取り付けられており、これらのスタックメンバー４３，４３の間には、電池モジュール３の上面に複数の端子（図示せず）が設けられている。また、エンドプレート３５には、補強部材３７が接合されており、該補強部材３７は、側面視略Ａ字状に形成されている。該補強部材３７の下端には、横方向に屈曲した取付フランジ３７ｂ，３７ｃが一対に設けられており、上端には取付フランジ３７ａが屈曲して横方向に延びている。   In this battery module 3, plate-shaped batteries 9 are juxtaposed in the plate thickness direction (lateral direction) and joined, and end plates (support members) 35, 35 are disposed at both ends thereof. A pair of elongated stack members 43 and 43 are attached to both sides of the upper surface of the battery 9 via bolts 45, and the upper surface of the battery module 3 is interposed between the stack members 43 and 43. A plurality of terminals (not shown) are provided. A reinforcing member 37 is joined to the end plate 35, and the reinforcing member 37 is formed in a substantially A shape in side view. A pair of mounting flanges 37b and 37c bent in the lateral direction are provided at the lower end of the reinforcing member 37, and the mounting flange 37a is bent at the upper end and extends in the lateral direction.

そして、図４に示すように、スリンガーブラケット４７を補強部材３７の取付フランジ３７ａにボルト５１を介して締結し、図５に示すように、そのまま電池モジュール３を上方に持ち上げてパレット治具３１のピン２５に取付フランジ３７ｂ，３７ｃの孔を挿入することによって、電池モジュール３の位置決めを行う。また、電池モジュール５，７についても同様の手順で位置決めする。   Then, as shown in FIG. 4, the slinger bracket 47 is fastened to the mounting flange 37a of the reinforcing member 37 via the bolt 51, and the battery module 3 is lifted upward as shown in FIG. The battery module 3 is positioned by inserting the holes of the mounting flanges 37b and 37c into the pin 25. The battery modules 5 and 7 are also positioned in the same procedure.

図６は、組電池を側方から見た側面図である。   FIG. 6 is a side view of the assembled battery as viewed from the side.

車両搭載状態では、車両前方側に支持プレート１１が配置され、該支持プレート１１に接合された補強部材３７は、側面視略Ａ字状に形成されており、上下２本のピン（突設体）２５によって支持プレート１１に締結されている。即ち、長尺状の支持プレート１１に、該支持プレート１１の長手方向に沿って所定間隔をおいて少なくとも一対のピン２５，２５が配置されている。   In the vehicle-mounted state, the support plate 11 is disposed on the front side of the vehicle, and the reinforcing member 37 joined to the support plate 11 is formed in a substantially A shape when viewed from the side. ) 25 to the support plate 11. That is, at least a pair of pins 25, 25 are arranged on the long support plate 11 at a predetermined interval along the longitudinal direction of the support plate 11.

具体的には、補強部材３７は、上側のピン２５から後方斜め下方に延びる上側支持部３７ｄと、下側のピン２５から後方に向けて略水平状に延びて上側支持部３７ｄの後端部に結合する下側支持部３７ｅと、これらの上側支持部３７ｄおよび下側支持部３７ｅの車両前方側の端部を上下に結ぶ連結部３７ｆとから一体形成されている。即ち、補強部材３７は、前記一対のピン２５，２５のうち支持プレート１１の長手方向（上下方向）の一方側（上側）に配置されたピン２５から長手方向に対して交差する交差方向（後方斜め下方）に延びる第１支持部（上側支持部３７ｄ）と、長手方向の他方側のピン２５から前記交差方向（後方）に延びて前記第１支持部に結合された第２支持部（下側支持部３７ｅ）と、これらの第１支持部および第２支持部における支持プレート１１側の端部を長手方向に結ぶ連結部３７ｆと、から一体に形成されている。なお、前記長手方向および交差方向は、図６の矢印方向を示す。   Specifically, the reinforcing member 37 includes an upper support portion 37d that extends rearward and obliquely downward from the upper pin 25, and a rear end portion of the upper support portion 37d that extends substantially horizontally from the lower pin 25 toward the rear. Are integrally formed from a lower support portion 37e coupled to the upper and lower ends of the upper support portion 37d and the lower support portion 37e on the vehicle front side. That is, the reinforcing member 37 has a crossing direction (backward) that intersects the longitudinal direction from the pin 25 arranged on one side (upper side) of the longitudinal direction (vertical direction) of the support plate 11 among the pair of pins 25, 25. A first support part (upper side support part 37d) extending obliquely downward, and a second support part (lower side) extending in the intersecting direction (backward) from the pin 25 on the other side in the longitudinal direction and coupled to the first support part Side support portion 37e) and a connecting portion 37f that connects the end portions of the first support portion and the second support portion on the support plate 11 side in the longitudinal direction. In addition, the said longitudinal direction and the crossing direction show the arrow direction of FIG.

以下に、本実施形態による作用効果を説明する。   Below, the effect by this embodiment is demonstrated.

（１）本実施形態に係る組電池は、長尺状の支持プレート１１と、該支持プレート１１から突出して支持プレート１１の長手方向（車両搭載状態における上下方向）に所定間隔をおいて配置された複数のピン２５（突設体）と、これらのピン２５に支持された電池モジュール３，５，７と、を備え、前記ピン２５は、前記支持プレート１１の長手方向に沿った取付位置を変えることが可能に構成されている。   (1) The assembled battery according to the present embodiment is provided with a long support plate 11 and a predetermined distance in the longitudinal direction of the support plate 11 (vertical direction in a vehicle-mounted state) protruding from the support plate 11. A plurality of pins 25 (projecting bodies) and battery modules 3, 5 and 7 supported by these pins 25, and the pins 25 are provided with attachment positions along the longitudinal direction of the support plate 11. It can be changed.

このように、ピン２５の長手方向（上下方向）の位置を変えることにより、容易に電池モジュール３，５，７の取付位置（高さ位置）を調整することができる。   Thus, by changing the position of the pin 25 in the longitudinal direction (vertical direction), the mounting position (height position) of the battery modules 3, 5 and 7 can be easily adjusted.

（２）前記電池モジュール３，５，７は、前記ピン（突設体）２５に支持された補強部材３７と該補強部材３７に結合されたエンドプレート（支持部材）３５を介して支持プレート１１に取り付けられ、前記補強部材３７は、支持プレート１１に上下方向（長手方向）に離間して配置された少なくとも一対のピン（突設体）２５，２５に支持されている。前記補強部材３７は、前記一対のピン２５，２５のうち支持プレート１１の長手方向の一方側である上側に配置されたピン２５から後方斜め下方（長手方向に対して交差する交差方向）に延びる上側支持部（第１支持部）３７ｄと、長手方向の他方側（下側）のピン２５から後方（交差方向）に延びて前記上側支持部３７ｄの端部に結合された下側支持部（第２支持部）３７ｅと、これらの上側支持部３７ｄおよび下側支持部３７ｅにおける支持プレート１１側の端部を上下方向（支持プレート１１の長手方向）に結ぶ連結部３７ｆと、から一体に形成されている。   (2) The battery modules 3, 5, and 7 are supported by the support plate 11 via the reinforcing member 37 supported by the pin (projecting body) 25 and the end plate (supporting member) 35 coupled to the reinforcing member 37. The reinforcing member 37 is supported by at least a pair of pins (projecting bodies) 25 and 25 that are spaced apart from each other in the vertical direction (longitudinal direction) on the support plate 11. The reinforcing member 37 extends rearward and obliquely downward (cross direction intersecting with the longitudinal direction) from the pin 25 disposed on the upper side, which is one side of the supporting plate 11 in the longitudinal direction, of the pair of pins 25 and 25. 37 d of upper side support parts (1st support part), and the lower side support part (the cross direction) extended from the pin 25 of the other side (lower side) of the longitudinal direction, and were couple | bonded with the edge part of the said upper side support part 37d ( (Second support portion) 37e and a connecting portion 37f that connects the end portions on the support plate 11 side of the upper support portion 37d and the lower support portion 37e in the vertical direction (longitudinal direction of the support plate 11). Has been.

このように、補強部材３７はラーメン構造に構成されているため、電池モジュール３，５，７を支持プレート１１に支持する際の支持剛性が高まる。特に、前記支持プレート１１の長手方向を車両搭載状態における上下方向（重力方向）とし、電池モジュール３，５，７を上下に重ねて配置した場合に、電池モジュール３，５，７を支持プレート１１に支持する際の支持剛性が効果的に向上する。   Thus, since the reinforcement member 37 is comprised by the ramen structure, the support rigidity at the time of supporting the battery modules 3, 5, and 7 to the support plate 11 increases. In particular, when the longitudinal direction of the support plate 11 is the vertical direction (gravity direction) in a vehicle-mounted state, and the battery modules 3, 5, and 7 are arranged vertically, the battery modules 3, 5, and 7 are supported by the support plate 11. The support rigidity at the time of supporting to effectively improves.

１…組電池
３…上側電池モジュール（電池モジュール）
５…中央側電池モジュール（電池モジュール）
７…下側電池モジュール（電池モジュール）
１１…支持プレート
２５…ピン（突設体）
３５…エンドプレート（支持部材）
３７…補強部材
３７ｄ…上側支持部（第１支持部）
３７ｅ…下側支持部（第２支持部）
３７ｆ…連結部 1 ... assembled battery 3 ... upper battery module (battery module)
5. Central battery module (battery module)
7 ... Lower battery module (battery module)
11 ... support plate 25 ... pin (projecting body)
35 ... End plate (support member)
37: Reinforcing member 37d: Upper support portion (first support portion)
37e ... Lower support part (second support part)
37f ... connecting part

Claims (2)

長尺状の支持プレートと、該支持プレートから突出して支持プレートの長手方向に所定間隔をおいて配置された複数の突設体と、これらの突設体に取り付けられた電池モジュールと、を備え、
前記突設体は、前記支持プレートの長手方向に沿った取付位置を変えることが可能に構成されていることを特徴とする組電池。 A long support plate, a plurality of projecting bodies protruding from the support plate and arranged at predetermined intervals in the longitudinal direction of the support plate, and a battery module attached to these projecting bodies. ,
The battery assembly is characterized in that the protruding body is configured to be able to change an attachment position along a longitudinal direction of the support plate. 前記電池モジュールは、前記突設体に支持された補強部材と該補強部材に結合された支持部材を介して支持プレートに取り付けられ、
前記補強部材は、支持プレートに長手方向に離間して配置された少なくとも一対の突設体に固定されており、
前記補強部材は、前記一対の突設体のうち支持プレートの長手方向の一方側に配置された突設体から前記長手方向に対して交差する交差方向に延びる第１支持部と、前記長手方向の他方側の突設体から前記交差方向に延びて前記第１支持部に結合された第２支持部と、これらの第１支持部および第２支持部における支持プレート側の端部を長手方向に結ぶ連結部と、から一体に形成されたことを特徴とする請求項１に記載の組電池。 The battery module is attached to a support plate via a reinforcing member supported by the projecting body and a supporting member coupled to the reinforcing member,
The reinforcing member is fixed to at least a pair of projecting bodies that are spaced apart from each other in the longitudinal direction on the support plate,
The reinforcing member includes a first support portion extending in a crossing direction intersecting the longitudinal direction from a projecting body disposed on one side of the longitudinal direction of the support plate among the pair of projecting bodies, and the longitudinal direction. A second support portion that extends in the intersecting direction from the projecting body on the other side of the first support portion and is coupled to the first support portion, and ends of the first support portion and the second support portion on the support plate side in the longitudinal direction The assembled battery according to claim 1, wherein the battery pack is integrally formed with a connecting portion connected to the battery.
JP2010097685A 2009-04-24 2010-04-21 Battery pack Pending JP2010272520A (en)

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