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JP2017004901A - Power storage module - Google Patents

Power storage module Download PDF

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Publication number
JP2017004901A
JP2017004901A JP2015120634A JP2015120634A JP2017004901A JP 2017004901 A JP2017004901 A JP 2017004901A JP 2015120634 A JP2015120634 A JP 2015120634A JP 2015120634 A JP2015120634 A JP 2015120634A JP 2017004901 A JP2017004901 A JP 2017004901A
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JP
Japan
Prior art keywords
unit
power storage
safety valve
duct member
storage element
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2015120634A
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Japanese (ja)
Inventor
恭兵 森田
Kyohei Morita
恭兵 森田
達哉 角田
Tatsuya Tsunoda
達哉 角田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sumitomo Wiring Systems Ltd
AutoNetworks Technologies Ltd
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Wiring Systems Ltd
AutoNetworks Technologies Ltd
Sumitomo Electric Industries Ltd
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Application filed by Sumitomo Wiring Systems Ltd, AutoNetworks Technologies Ltd, Sumitomo Electric Industries Ltd filed Critical Sumitomo Wiring Systems Ltd
Priority to JP2015120634A priority Critical patent/JP2017004901A/en
Priority to PCT/JP2016/067638 priority patent/WO2016204140A1/en
Publication of JP2017004901A publication Critical patent/JP2017004901A/en
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
    • H01G11/10—Multiple hybrid or EDL capacitors, e.g. arrays or modules
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
    • H01G11/14—Arrangements or processes for adjusting or protecting hybrid or EDL capacitors
    • H01G11/18—Arrangements or processes for adjusting or protecting hybrid or EDL capacitors against thermal overloads, e.g. heating, cooling or ventilating
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/30—Arrangements for facilitating escape of gases
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
    • H01M50/209—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/218—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material
    • H01M50/22—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material of the casings or racks
    • H01M50/227—Organic material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/271—Lids or covers for the racks or secondary casings
    • H01M50/273—Lids or covers for the racks or secondary casings characterised by the material
    • H01M50/278—Organic material
    • 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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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Battery Mounting, Suspending (AREA)
  • Gas Exhaust Devices For Batteries (AREA)
  • Electric Double-Layer Capacitors Or The Like (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a power storage module of which the number of components is reduced.SOLUTION: A power storage module 10 comprises: a first unit 12 including a first power storage element 11 including a first safety valve 39; a second unit 14 including a second power storage element 13 including a second safety valve 53; and a duct member 84 which is connected to the first safety valve 39 and the second safety valve 53 and through which a gas emitted from at least one of the first safety valve 39 and the second safety valve 53 is circulated. In the power storage module, the first unit 12 is arranged in such a manner that the first safety valve 39 of the first power storage element 11 opposes the second unit 14, the second unit 14 is arranged in such a manner that the second safety valve 53 of the second power storage element 13 opposes the first unit 12, and the duct member 84 is disposed between the first unit 12 and the second unit 14.SELECTED DRAWING: Figure 7

Description

本明細書に開示された技術は、複数の蓄電素子を備えた蓄電モジュールに関する。   The technology disclosed in the present specification relates to a power storage module including a plurality of power storage elements.

従来、蓄電モジュールとして特許文献１に記載のものが知られている。この蓄電モジュールは、複数の蓄電素子を並べてなる蓄電ユニットを、３段に重ねてなる。   Conventionally, the thing of patent document 1 is known as an electrical storage module. In this power storage module, power storage units in which a plurality of power storage elements are arranged are stacked in three stages.

各蓄電ユニットの上面には、蓄電素子の安全弁から排出されるガスを外部に排出するためのダクトが形成されている。   Ducts for discharging gas discharged from the safety valve of the power storage element to the outside are formed on the upper surface of each power storage unit.

特開２０１１−１０８６５３号公報JP 2011-108653 A

上記の構成によれば、複数の蓄電ユニットの数に応じて、複数のダクトが必要とされるので、部品点数が増大するという問題がある。   According to said structure, according to the number of several electrical storage units, since several duct is required, there exists a problem that a number of parts increases.

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、部品点数が削減された蓄電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 an object thereof is to provide a power storage module having a reduced number of parts.

本明細書に記載された蓄電モジュールは、第１安全弁を有する第１蓄電素子を備えた第１ユニットと、第２安全弁を有する第２蓄電素子を備えた第２ユニットと、前記第１安全弁及び前記第２安全弁に接続されて、前記第１安全弁及び前記第２安全弁の少なくとも一方から放出されたガスを流通させるダクト部材と、を備え、前記第１蓄電素子の前記第１安全弁が前記第２ユニットに対向して配されており、前記第２蓄電素子の前記第２安全弁が前記第１ユニットに対向して配されており、前記ダクト部材が前記第１ユニットと前記第２ユニットとの間に配置されている。   The power storage module described in the present specification includes a first unit including a first power storage element having a first safety valve, a second unit including a second power storage element having a second safety valve, the first safety valve, A duct member connected to the second safety valve and allowing a gas released from at least one of the first safety valve and the second safety valve to flow therethrough, wherein the first safety valve of the first power storage element is the second safety valve. The second safety valve of the second power storage element is disposed opposite to the first unit, and the duct member is disposed between the first unit and the second unit. Is arranged.

本明細書に記載された技術によれば、第１安全弁から排出されるガスを流通させるためのダクトと、第２安全弁から排出されるガスを流通させるためのダクトとを、１つのダクト部材で兼ねることができるので、部品点数を削減することができる。   According to the technique described in this specification, the duct for circulating the gas discharged from the first safety valve and the duct for circulating the gas discharged from the second safety valve are combined with one duct member. Since it can also serve as a part, the number of parts can be reduced.

また、本明細書に記載された技術によれば、第１ユニットと第２ユニットとを組み付けるという作業によって、ダクト部材は、第１ユニットに押圧されると共に、第２ユニットにも押圧される。詳細に説明すると、第１ユニットと第２ユニットとの間に配されたダクト部材は、第１ユニット側に押圧されると共に、第２ユニット側にも押圧される。これにより、ダクト部材は、第１ユニットの第１安全弁に対して確実に接続されると共に、第２ユニットの第２安全弁に対しても確実に接続される。この結果、第１ユニットと第２ユニットとを組み付けるという１つの作業によって、ダクト部材は、第１ユニット及び第２ユニットの双方に対して確実に接続されるようになっているので、蓄電モジュールの製造効率を向上させることができる。   In addition, according to the technique described in this specification, the duct member is pressed against the first unit and is also pressed against the second unit by an operation of assembling the first unit and the second unit. More specifically, the duct member disposed between the first unit and the second unit is pressed toward the first unit and also pressed toward the second unit. Accordingly, the duct member is reliably connected to the first safety valve of the first unit and is also reliably connected to the second safety valve of the second unit. As a result, the duct member is securely connected to both the first unit and the second unit by one operation of assembling the first unit and the second unit. Manufacturing efficiency can be improved.

更に、ダクト部材を、第１ユニット及び第２ユニットのそれぞれに対して押圧するための部材が不要になるので、部品点数を削減することができる。   Furthermore, since a member for pressing the duct member against each of the first unit and the second unit is not necessary, the number of parts can be reduced.

本発明の実施態様としては以下の態様が好ましい。   As embodiments of the present invention, the following embodiments are preferable.

前記ダクト部材は、前記第１安全弁と前記第２安全弁との間に、保護壁を有することが好ましい。   It is preferable that the duct member has a protective wall between the first safety valve and the second safety valve.

上記の態様によれば、第１安全弁、又は第２安全弁が破断した場合において、第１安全弁及び第２安全弁の一方が、他方を損傷することを抑制することができる。   According to said aspect, when the 1st safety valve or the 2nd safety valve fractures | ruptures, it can suppress that one of a 1st safety valve and a 2nd safety valve damages the other.

前記ダクト部材は、前記第１ユニットと係止する第１係止部を有すると共に、前記第２ユニットと係止する第２係止部を有することが好ましい。   The duct member preferably includes a first locking portion that locks with the first unit and a second locking portion that locks with the second unit.

上記の態様によれば、ダクト部材を介して、第１ユニットと第２ユニットとを仮組みすることができる。これにより、蓄電モジュールの組み付け工程を効率化することができる。   According to the above aspect, the first unit and the second unit can be temporarily assembled via the duct member. Thereby, the assembly | attachment process of an electrical storage module can be made efficient.

前記第１蓄電素子は第１電極を有し、前記第２蓄電素子は第２電極を有しており、前記ダクト部材は、絶縁体からなると共に、前記第１電極と前記第２電極との間に配置されていることが好ましい。   The first power storage element has a first electrode, the second power storage element has a second electrode, the duct member is made of an insulator, and the first electrode and the second electrode It is preferable to arrange | position between.

上記の態様によれば、ダクト部材によって、第１電極と第２電極との間の絶縁を確実に図ることができる。この結果、第１電極と第２電極とを絶縁する部材を別途、用意する必要がないので部品点数を削減することができる。   According to said aspect, the insulation between a 1st electrode and a 2nd electrode can be aimed at reliably by a duct member. As a result, since it is not necessary to prepare a separate member for insulating the first electrode and the second electrode, the number of parts can be reduced.

本発明によれば、蓄電モジュールの部品点数を削減することができる。   According to the present invention, the number of parts of the power storage module can be reduced.

実施形態１に係る蓄電モジュールを示す分解斜視図1 is an exploded perspective view showing a power storage module according to Embodiment 1. FIG. 蓄電モジュールを示す平面図Top view showing power storage module 図２におけるＰ−Ｐ線断面図PP cross-sectional view in FIG. 図２におけるＱ−Ｑ線断面図Q-Q line sectional view in FIG. 図２におけるＲ−Ｒ線断面図RR line sectional view in FIG. 図２におけるＳ−Ｓ線断面図SS sectional view in FIG. 図２におけるＴ−Ｔ線断面図TT line sectional view in FIG. 第１ユニットを示す斜視図A perspective view showing the first unit 第１ユニットを示す底面図Bottom view showing the first unit 第２ユニットを示す平面図Plan view showing the second unit 第２ユニットを示す斜視図A perspective view showing the second unit 第１蓄電素子を示す斜視図The perspective view which shows a 1st electrical storage element 第１導体を示す斜視図A perspective view showing the first conductor 第１分割体を示す斜視図The perspective view which shows a 1st division body 第２分割体を示す斜視図The perspective view which shows a 2nd division body 第１外部導体を示す斜視図A perspective view showing a first outer conductor 第２外部導体を示す斜視図A perspective view showing a second outer conductor 蓄電モジュールを示す側面図Side view showing power storage module 図１８におけるＵ−Ｕ線断面図U line sectional view in FIG. 図１８におけるＶ−Ｖ線断面図VV sectional view taken on the line in FIG. ダクト部材を示す分解斜視図Exploded perspective view showing duct member 第１ダクト部材を示す斜視図The perspective view which shows a 1st duct member 第２ダクト部材を示す斜視図The perspective view which shows a 2nd duct member

＜実施形態１＞
本発明の実施形態１を、図１ないし図２３を参照しつつ、説明する。本実施形態に係る蓄電モジュール１０は、車両（図示せず）に配されて、車両に配設された電子部品（図示せず）又は電気部品（図示せず）に電力を供給するものである。なお、以下の説明においては、図１に示すＺ方向を上方とし、Ｙ方向を前方とし、Ｘ方向を右方として説明する。また、複数の同一部材については、一部の部材にのみ符号を付し、他の部材については符号を省略することがある。 <Embodiment 1>
Embodiment 1 of the present invention will be described with reference to FIGS. The power storage module 10 according to the present embodiment is arranged in a vehicle (not shown) and supplies electric power to an electronic component (not shown) or an electrical component (not shown) arranged in the vehicle. . In the following description, it is assumed that the Z direction shown in FIG. 1 is upward, the Y direction is front, and the X direction is right. Moreover, about several same members, a code | symbol may be attached | subjected only to one part member, and a code | symbol may be abbreviate | omitted about another member.

（蓄電モジュール１０）
蓄電モジュール１０は、複数（本実施形態では２つ）の第１蓄電素子１１を有する第１ユニット１２と、複数（本実施形態では２つ）の第２蓄電素子１３を有する第２ユニット１４と、第１蓄電素子１１又は第２蓄電素子１３から放出されたガスを流通させるダクト部材８４と、を備える。 (Power storage module 10)
The power storage module 10 includes a first unit 12 having a plurality (two in the present embodiment) of first power storage elements 11 and a second unit 14 having a plurality of (two in the present embodiment) second power storage elements 13. And a duct member 84 for circulating the gas released from the first power storage element 11 or the second power storage element 13.

（第１ユニット１２）
第１ユニット１２には、前方に開口する第１開口部２６を有する合成樹脂製の第１ケース２７内に、２つの第１蓄電素子１１が上下方向に積層された状態で収容されている。第１ケース２７は、上下方向について扁平な略直方体形状をなしている。第１ケース２７の第１開口部２６には、第１開口部２６の形状に倣った形状をなす第１カバー２８が内嵌されている。第１ケース２７のロック部２９と、第１カバー２８とのロック受け部３０とが弾性的に係合することにより、第１ケース２７と第１カバー２８とは一体に組み付けられている。 (First unit 12)
In the first unit 12, two first power storage elements 11 are accommodated in a first case 27 made of a synthetic resin having a first opening 26 that opens forward, in a state of being stacked in the vertical direction. The first case 27 has a substantially rectangular parallelepiped shape that is flat in the vertical direction. A first cover 28 having a shape following the shape of the first opening 26 is fitted in the first opening 26 of the first case 27. The first case 27 and the first cover 28 are assembled together by elastically engaging the lock portion 29 of the first case 27 and the lock receiving portion 30 of the first cover 28.

第１ケース２７の左右両端部には、左右方向の外方に突出する第１右固定部３１、及び第１左固定部３２が形成されている。第１右固定部３１、及び第１左固定部３２には、前後方向にボルト３３が挿通されるボルト挿通孔３４が上下に並んで形成されている。   A first right fixing portion 31 and a first left fixing portion 32 that protrude outward in the left-right direction are formed at both left and right ends of the first case 27. Bolt insertion holes 34 through which the bolts 33 are inserted in the front-rear direction are formed in the first right fixing portion 31 and the first left fixing portion 32 side by side.

第１蓄電素子１１は、扁平な略直方体形状をなしている。第１蓄電素子１１の内部には図示しない蓄電要素が収容されると共に、図示しない電解質が注入されている。   The 1st electrical storage element 11 has comprised the flat substantially rectangular parallelepiped shape. A power storage element (not shown) is accommodated in the first power storage element 11 and an electrolyte (not shown) is injected.

第１蓄電素子１１の前面には、正極３７（第１電極）と、負極３８（第１電極）とが、左右両端部寄りの位置から前方に突出されている。正極及３７及び負極３８は表面にねじ山が形成されたボルト状をなしている。第１蓄電素子１１の前面には、正極３７と、負極３８との間であって、左右方向について略中央位置に、第１安全弁３９が設けられている。この第１安全弁３９は、例えば第１蓄電素子１１に異常が発生して第１蓄電素子１１の内圧が上昇した場合に、第１安全弁３９が破断することによって、第１蓄電素子１１の内圧を減少させるようになっている。第１安全弁３９は前方から見て略円形状に形成されている   A positive electrode 37 (first electrode) and a negative electrode 38 (first electrode) protrude forward from the front of the first power storage element 11 from positions near both left and right ends. The positive electrode 37 and the negative electrode 38 are in the form of bolts with threads formed on the surface. A first safety valve 39 is provided on the front surface of the first power storage element 11 between the positive electrode 37 and the negative electrode 38 and at a substantially central position in the left-right direction. For example, when an abnormality occurs in the first power storage element 11 and the internal pressure of the first power storage element 11 rises, the first safety valve 39 breaks the first safety valve 39, thereby reducing the internal pressure of the first power storage element 11. It is designed to decrease. The first safety valve 39 is formed in a substantially circular shape when viewed from the front.

第１カバー２８には、下側に配された第１蓄電素子１１の正極３７に接続された第１外部導体２２が配設されている。また、第１カバー２８には、下側に配された第１蓄電素子１１の負極３８と、上側に配された第１蓄電素子１１の正極３７とを接続する第１導体４０が配設されている。また、第１カバー２８には、上側に配された第１蓄電素子１１の負極３８に接続されて、後述する第２蓄電素子１３の正極５１と接続される第３導体４１が配設されている。第１カバー２８は絶縁性の合成樹脂製である。これにより、第１外部導体２２、第１導体４０、及び第３導体４１は電気的に絶縁されている。   The first cover 28 is provided with the first outer conductor 22 connected to the positive electrode 37 of the first power storage element 11 disposed on the lower side. The first cover 28 is provided with a first conductor 40 that connects the negative electrode 38 of the first power storage element 11 disposed on the lower side to the positive electrode 37 of the first power storage element 11 disposed on the upper side. ing. The first cover 28 is provided with a third conductor 41 connected to the negative electrode 38 of the first power storage element 11 disposed on the upper side and connected to the positive electrode 51 of the second power storage element 13 described later. Yes. The first cover 28 is made of an insulating synthetic resin. Thereby, the 1st outer conductor 22, the 1st conductor 40, and the 3rd conductor 41 are electrically insulated.

第１カバー２８には、第１安全弁３９に対応する位置に、前方から見て円筒形状をなす第１枠部４２が形成されている。第１枠部４２の内径寸法は、第１安全弁３９の外形寸法と略同じか、又はやや大きく設定されている。   The first cover 28 is formed with a first frame portion 42 having a cylindrical shape when viewed from the front at a position corresponding to the first safety valve 39. The inner diameter dimension of the first frame portion 42 is set to be substantially the same as or slightly larger than the outer dimension of the first safety valve 39.

（第２ユニット１４）
第２ユニット１４には、後方に開口する第２開口部４３を有する合成樹脂製の第２ケース４４内に、２つの第２蓄電素子１３が上下方向に積層された状態で収容されている。第２ケース４４は、上下方向について扁平な略直方体形状をなしている。第２ケース４４の第２開口部４３には、第２開口部４３の形状に倣った形状をなす第２カバー４５が内嵌されている。第２ケース４４のロック部４６と、第２カバー４５とのロック受け部４７とが弾性的に係合することにより、第２ケース４４と第２カバー４５とは一体に組み付けられている。 (Second unit 14)
In the second unit 14, two second power storage elements 13 are housed in a vertically stacked direction in a second case 44 made of synthetic resin having a second opening 43 that opens rearward. The second case 44 has a substantially rectangular parallelepiped shape that is flat in the vertical direction. A second cover 45 having a shape following the shape of the second opening 43 is fitted in the second opening 43 of the second case 44. The second case 44 and the second cover 45 are integrally assembled by elastically engaging the lock portion 46 of the second case 44 and the lock receiving portion 47 of the second cover 45.

第２ケース４４の左右両端部には、左右方向の外方に突出する第２右固定部４８、及び第２左固定部４９が形成されている。第２右固定部４８、及び第２左固定部４９には、ボルト３３が螺合されるナット５０が上下に並んでインサート成形されている。   A second right fixing portion 48 and a second left fixing portion 49 that protrude outward in the left-right direction are formed at both left and right ends of the second case 44. The second right fixing portion 48 and the second left fixing portion 49 are insert-molded with nuts 50 to which the bolts 33 are screwed up and down.

ボルト３３が、第１ケース２７のボルト挿通孔３４に挿通されると共に、第２ケース４４のナット５０に螺合されることにより、第１ケース２７と第２ケース４４とが一体に組み付けられるようになっている。   The bolt 33 is inserted into the bolt insertion hole 34 of the first case 27 and screwed into the nut 50 of the second case 44 so that the first case 27 and the second case 44 are assembled together. It has become.

第２蓄電素子１３は、扁平な略直方体形状をなしている。第２蓄電素子１３の内部には図示しない蓄電要素が収容されると共に、図示しない電解質が注入されている。   The 2nd electrical storage element 13 has comprised the flat substantially rectangular parallelepiped shape. A power storage element (not shown) is accommodated in the second power storage element 13 and an electrolyte (not shown) is injected.

第２蓄電素子１３の後面には、正極５１（第２電極）と、負極５２（第２電極）とが、左右両端部寄りの位置から後方に突出されている。正極５１及び負極５２は、表面にねじ山が形成されたボルト状をなしている。第２蓄電素子１３の後面には、正極５１と、負極５２と間であって、左右方向について略中央位置に、第２安全弁５３が設けられている。この第２安全弁５３は、例えば第１蓄電素子１１に異常が発生して第２蓄電素子１３の内圧が上昇した場合に、第２安全弁５３が破断することによって、第２蓄電素子１３の内圧を減少させるようになっている。第２安全弁５３は後方から見て略円形状に形成されている。   On the rear surface of the second power storage element 13, a positive electrode 51 (second electrode) and a negative electrode 52 (second electrode) protrude rearward from positions near the left and right ends. The positive electrode 51 and the negative electrode 52 have a bolt shape with a thread formed on the surface. A second safety valve 53 is provided on the rear surface of the second power storage element 13 between the positive electrode 51 and the negative electrode 52 and at a substantially central position in the left-right direction. For example, when an abnormality occurs in the first power storage element 11 and the internal pressure of the second power storage element 13 rises, the second safety valve 53 breaks the second safety valve 53, thereby reducing the internal pressure of the second power storage element 13. It is designed to decrease. The second safety valve 53 is formed in a substantially circular shape when viewed from the rear.

第２カバー４５には、下側に配された第２蓄電素子１３の負極５２に接続された第２外部導体２４が配設されている。また、第２カバー４５には、下側に配された第２蓄電素子１３の正極５１と、上側に配された第２蓄電素子１３の負極５２とを接続する第２導体５４が配設されている。また、第２カバー４５には、上側に配された第２蓄電素子１３の正極５１に接続されて、前述した第１蓄電素子１１の負極３８と接続される第３導体４１が配設されている。第２カバー４５は絶縁性の合成樹脂製である。これにより、第２外部導体２４、第２導体５４、及び第３導体４１は電気的に絶縁されている。   The second cover 45 is provided with the second outer conductor 24 connected to the negative electrode 52 of the second power storage element 13 disposed on the lower side. Further, the second cover 45 is provided with a second conductor 54 that connects the positive electrode 51 of the second power storage element 13 disposed on the lower side and the negative electrode 52 of the second power storage element 13 disposed on the upper side. ing. The second cover 45 is provided with a third conductor 41 connected to the positive electrode 51 of the second power storage element 13 disposed on the upper side and connected to the negative electrode 38 of the first power storage element 11 described above. Yes. The second cover 45 is made of an insulating synthetic resin. Accordingly, the second outer conductor 24, the second conductor 54, and the third conductor 41 are electrically insulated.

第２カバー４５には、第２安全弁５３に対応する位置に、前方から見て円筒形状をなす第２枠部５５が形成されている。第２枠部５５の内径寸法は、第２安全弁５３の外形寸法と略同じか、又はやや大きく設定されている。   The second cover 45 is formed with a second frame portion 55 having a cylindrical shape when viewed from the front at a position corresponding to the second safety valve 53. The inner diameter dimension of the second frame portion 55 is set to be substantially the same as or slightly larger than the outer dimension of the second safety valve 53.

（第１ユニット１２と第２ユニット１４との組み付け構造）
第１ユニット１２と第２ユニット１４とがボルト３３によって固定された状態では、第１ユニット１２は、第１蓄電素子１１の第１安全弁３９が前側に位置する姿勢で配されている。このとき、第２ユニット１４は、第２蓄電素子１３の第２安全弁５３が後側に位置する姿勢で配されている。換言すると、第１ユニット１２と第２ユニット１４とが固定された状態では、第１蓄電素子１１の第１安全弁３９は第２ユニット１４に対向する姿勢で配されており、第２蓄電素子１３の第２安全弁５３は第１ユニット１２に対向する姿勢で配されるようになっている。 (Assembly structure of first unit 12 and second unit 14)
In a state where the first unit 12 and the second unit 14 are fixed by the bolts 33, the first unit 12 is arranged in a posture in which the first safety valve 39 of the first power storage element 11 is located on the front side. At this time, the second unit 14 is arranged in a posture in which the second safety valve 53 of the second power storage element 13 is located on the rear side. In other words, in a state where the first unit 12 and the second unit 14 are fixed, the first safety valve 39 of the first power storage element 11 is arranged in a posture facing the second unit 14, and the second power storage element 13 The second safety valve 53 is arranged in a posture facing the first unit 12.

（ダクト部材８４）
ダクト部材８４は、絶縁体からなり、本実施形態においては絶縁性の合成樹脂からなる。ダクト部材８４は、第１ユニット１２側に配される第１ダクト部材８５と、第２ユニット１４側に配される第２ダクト部材８６と、第１ダクト部材８５と第２ダクト部材８６の間に配される保護壁８７と、を備える。 (Duct member 84)
The duct member 84 is made of an insulator, and in the present embodiment, is made of an insulating synthetic resin. The duct member 84 includes a first duct member 85 disposed on the first unit 12 side, a second duct member 86 disposed on the second unit 14 side, and between the first duct member 85 and the second duct member 86. And a protective wall 87 disposed on the surface.

第１ダクト部材８５と、第２ダクト部材８６とは、図示しない接着剤層を介して接着されていてもよい。また、第１ダクト部材８５と、第２ダクト部材８６とは、図示しないロック手段によって弾性的に組み付けられる構成としてもよいし、第１ダクト部材８５と、第２ダクト部材８６とは、溶着されていてもよい。更に、第１ダクト部材８５と、第２ダクト部材８６と、保護壁８７とが、一体に成形されていてもよい。   The first duct member 85 and the second duct member 86 may be bonded via an adhesive layer (not shown). Further, the first duct member 85 and the second duct member 86 may be elastically assembled by a lock means (not shown), and the first duct member 85 and the second duct member 86 are welded together. It may be. Furthermore, the first duct member 85, the second duct member 86, and the protective wall 87 may be integrally formed.

第１ダクト部材８５は、略長方形状をなす第１板部８８を備える。第１板部８８には、後方に陥没する第１凹部８９が形成されている。第１凹部８９の後端部には、上下に並ぶ第１安全弁３９に対応する位置に、上下に並ぶ２つの第１嵌合筒部９０が形成されている。各第１嵌合筒部９０には、第１ゴムリング９１が外嵌されている。第１ゴムリング９１は、第１カバー２８の第１枠部４２に内嵌するようになっている。なお、第１ゴムリング９１は、第１ダクト部材８５と一体に成形されていてもよい。   The first duct member 85 includes a first plate portion 88 having a substantially rectangular shape. The first plate portion 88 is formed with a first recess 89 that is recessed backward. At the rear end of the first recess 89, two first fitting cylinders 90 arranged vertically are formed at positions corresponding to the first safety valves 39 arranged vertically. A first rubber ring 91 is externally fitted to each first fitting cylinder portion 90. The first rubber ring 91 is fitted into the first frame portion 42 of the first cover 28. The first rubber ring 91 may be formed integrally with the first duct member 85.

第１ダクト部材８５の右端部には、右方に突出する筒状をなすパイプ部３５が形成されている。パイプ部３５の内部は、第１凹部８９に連通している。パイプ部３５の端部には、図示しないチューブが接続されている。このチューブを介して、パイプ部３５の内部は車両の外部空間と連通している。   At the right end portion of the first duct member 85, a tubular pipe portion 35 that protrudes to the right is formed. The inside of the pipe portion 35 communicates with the first recess 89. A tube (not shown) is connected to the end of the pipe portion 35. Through this tube, the inside of the pipe portion 35 communicates with the external space of the vehicle.

第１板部８８の後面には、後方に突出する複数（本実施形態では４つ）の第１嵌合板部９２が形成されている。第１嵌合板部９２の後端部には、第１カバー２８と係止する第１係止部９３が形成されている。第１カバー２８には、第１係止部９３に対応する位置に、第１被係止部９４が形成されている。第１係止部９３と第１被係止部９４とが弾性的に係止することにより、第１カバー２８と第１ダクト部材８５とが仮係止されるようになっている。   A plurality of (four in the present embodiment) first fitting plate portions 92 projecting rearward are formed on the rear surface of the first plate portion 88. A first locking portion 93 that locks with the first cover 28 is formed at the rear end portion of the first fitting plate portion 92. A first locked portion 94 is formed in the first cover 28 at a position corresponding to the first locking portion 93. The first cover 28 and the first duct member 85 are temporarily locked by elastically locking the first locking portion 93 and the first locked portion 94.

第２ダクト部材８６は、略長方形状をなす第２板部９５を備える。第２板部９５には、前方に陥没する第２凹部９６が形成されている。第２凹部９６の前端部には、上下に並ぶ第２安全弁５３に対応する位置に、上下に並ぶ２つの第２嵌合筒部９７が形成されている。各第２嵌合筒部９７には、第２ゴムリング９８が外嵌されている。第２ゴムリング９８は、第２カバー４５の第２枠部５５に内嵌するようになっている。なお、第２ゴムリング９８は、第２ダクト部材８６と一体に成形されていてもよい。   The second duct member 86 includes a second plate portion 95 having a substantially rectangular shape. The second plate portion 95 is formed with a second recess 96 that is recessed forward. At the front end of the second recess 96, two second fitting cylinders 97 arranged in the vertical direction are formed at positions corresponding to the second safety valves 53 arranged in the vertical direction. A second rubber ring 98 is externally fitted to each second fitting cylinder portion 97. The second rubber ring 98 is fitted into the second frame portion 55 of the second cover 45. Note that the second rubber ring 98 may be formed integrally with the second duct member 86.

第２板部９５の前面には、前方に突出する複数（本実施形態では４つ）の第２嵌合板部９９が形成されている。第２嵌合板部９９の前端部には、第２カバー４５と係止する第２係止部１００が形成されている。第２カバー４５には、第２係止部１００に対応する位置に、第２被係止部１０１が形成されている。第２係止部１００と第２被係止部１０１とが弾性的に係止することにより、第２カバー４５と第２ダクト部材８６とが仮係止されるようになっている。   A plurality of (four in this embodiment) second fitting plate portions 99 projecting forward are formed on the front surface of the second plate portion 95. A second locking portion 100 that locks with the second cover 45 is formed at the front end portion of the second fitting plate portion 99. A second locked portion 101 is formed on the second cover 45 at a position corresponding to the second locking portion 100. The second cover 45 and the second duct member 86 are temporarily locked by elastically locking the second locking part 100 and the second locked part 101.

第１ダクト部材８５と、第２ダクト部材８６とが組み付けられた状態で、第１ダクト部材８５の第１凹部８９と、第２ダクト部材８６の第２凹部９６とによって、第１蓄電素子１１の第１安全弁３９から放出されたガス、又は、第２蓄電素子１３の第２安全弁５３から放出されたガスがためられるようになっている。第１ダクト部材８５と、第２ダクト部材８６とが組み付けられた状態で、第１凹部８９と第２凹部９６とは、接着剤層や、パッキン等の公知の手法によって、気密に形成されている。   In a state where the first duct member 85 and the second duct member 86 are assembled, the first power storage element 11 is formed by the first recess 89 of the first duct member 85 and the second recess 96 of the second duct member 86. The gas released from the first safety valve 39 or the gas released from the second safety valve 53 of the second power storage element 13 is stored. In a state where the first duct member 85 and the second duct member 86 are assembled, the first concave portion 89 and the second concave portion 96 are hermetically formed by a known technique such as an adhesive layer or packing. Yes.

第１ダクト部材８５と、第２ダクト部材８６との間には、略長方形状をなす保護壁８７が、第１ダクト部材８５と第２ダクト部材８６とに挟持されている。保護壁８７は、ダクト部材８４が第１ユニット１２及び第２ユニット１４に組み付けられた状態で、第１安全弁３９の前方に位置して第１安全弁３９と対向するとともに、第２安全弁５３の後方に位置して第２安全弁５３と対向するようになっている。   A protective wall 87 having a substantially rectangular shape is sandwiched between the first duct member 85 and the second duct member 86 between the first duct member 85 and the second duct member 86. The protective wall 87 is located in front of the first safety valve 39 and faces the first safety valve 39 in a state where the duct member 84 is assembled to the first unit 12 and the second unit 14, and is behind the second safety valve 53. The second safety valve 53 is opposed to the second safety valve 53.

また、ダクト部材８４が、第１ユニット１２及び第２ユニット１４に組み付けられた状態で、ダクト部材８４は、第１蓄電素子１１の正極３７と、第２蓄電素子１３の負極５２との間に配置されていると共に、第１蓄電素子１１の負極３８と、第２蓄電素子１３の正極５１との間に配置されている。   In addition, in a state where the duct member 84 is assembled to the first unit 12 and the second unit 14, the duct member 84 is interposed between the positive electrode 37 of the first power storage element 11 and the negative electrode 52 of the second power storage element 13. It is arranged between the negative electrode 38 of the first power storage element 11 and the positive electrode 51 of the second power storage element 13.

また、第１ユニット１２と第２ユニット１４とが組み付けられた状態で、ダクト部材８４は第１ユニット１２と第２ユニット１４との間に挟み付けられている。   Further, the duct member 84 is sandwiched between the first unit 12 and the second unit 14 in a state where the first unit 12 and the second unit 14 are assembled.

（第１ユニット１２と第２ユニット１４との組み付け工程）
続いて、第１ユニット１２と、第２ユニット１４との組み付け工程の一例を説明する。なお、第１ユニット１２と、第２ユニット１４との組み付け工程は以下の記載に限定されない。 (Assembly process of first unit 12 and second unit 14)
Then, an example of the assembly | attachment process of the 1st unit 12 and the 2nd unit 14 is demonstrated. In addition, the assembly | attachment process of the 1st unit 12 and the 2nd unit 14 is not limited to the following description.

第１ケース２７の第１開口部２６から第１蓄電素子１１を第１ケース２７内に収容する。第１開口部２６内に、第１カバー２８を取り付ける。正極３７、及び負極３８に対して、第１導体４０、第３導体４１、及び第１外部導体２２を、ナット１０２を螺合することにより接続する。   The first power storage element 11 is accommodated in the first case 27 from the first opening 26 of the first case 27. A first cover 28 is attached in the first opening 26. The first conductor 40, the third conductor 41, and the first outer conductor 22 are connected to the positive electrode 37 and the negative electrode 38 by screwing the nut 102.

第２ケース４４の第２開口部４３から第２蓄電素子１３を第１ケース２７内に収容する。第２開口部４３内に、第２カバー４５を取り付ける。正極５１、及び負極５２に対して、第２導体５４、第３導体４１、及び第２外部導体を、ナット１０２を螺合することにより接続する。   The second power storage element 13 is accommodated in the first case 27 from the second opening 43 of the second case 44. A second cover 45 is attached in the second opening 43. The second conductor 54, the third conductor 41, and the second outer conductor are connected to the positive electrode 51 and the negative electrode 52 by screwing the nut 102.

第１ダクト部材８５と、第２ダクト部材８６との間に、保護壁８７が挟まれた状態で、第１ダクト部材８５と、第２ダクト部材８６とを、例えば接着材によって接着することにより、気密に組み付ける。   By bonding the first duct member 85 and the second duct member 86 with, for example, an adhesive in a state where the protective wall 87 is sandwiched between the first duct member 85 and the second duct member 86. Assemble tightly.

ダクト部材８４の第１係止部９３と、第１ユニット１２の第１被係止部９４とを弾性的に係止する。また、ダクト部材８４の第２係止部１００と、第２ユニット１４の第２被係止部１０１とを弾性的に係止する。これにより、ダクト部材８４に対して、第１ユニット１２と第２ユニット１４とが仮組みされる。   The first locking portion 93 of the duct member 84 and the first locked portion 94 of the first unit 12 are elastically locked. Further, the second locking portion 100 of the duct member 84 and the second locked portion 101 of the second unit 14 are elastically locked. Thereby, the first unit 12 and the second unit 14 are temporarily assembled with respect to the duct member 84.

第１右固定部３１、及び第１左固定部３２の第１挿通孔にボルト３３を挿通させると共に、第２右固定部４８、及び第２左固定部４９のナット５０にこのボルト３３を螺合させる。これにより、第１ユニット１２と第２ユニット１４とを一体に固定する。   The bolt 33 is inserted into the first insertion hole of the first right fixing portion 31 and the first left fixing portion 32, and the bolt 33 is screwed into the nut 50 of the second right fixing portion 48 and the second left fixing portion 49. Combine. As a result, the first unit 12 and the second unit 14 are fixed together.

（本実施形態の作用、効果）
続いて、本実施形態の作用、効果について説明する。本実施形態に係る蓄電モジュール１０は、第１安全弁３９を有する第１蓄電素子１１を備えた第１ユニット１２と、第２安全弁５３を有する第２蓄電素子１３を備えた第２ユニット１４と、第１安全弁３９及び第２安全弁５３に接続されて、第１安全弁３９及び第２安全弁５３の少なくとも一方から放出されたガスを流通させるダクト部材８４と、を備え、第１蓄電素子１１の第１安全弁３９が第２ユニット１４に対向して配されており、第２蓄電素子１３の第２安全弁５３が第１ユニット１２に対向して配されており、ダクト部材８４が第１ユニット１２と第２ユニット１４との間に配置されている。 (Operation and effect of this embodiment)
Then, the effect | action and effect of this embodiment are demonstrated. The power storage module 10 according to the present embodiment includes a first unit 12 including the first power storage element 11 having the first safety valve 39, a second unit 14 including the second power storage element 13 having the second safety valve 53, and A duct member 84 connected to the first safety valve 39 and the second safety valve 53 and allowing the gas discharged from at least one of the first safety valve 39 and the second safety valve 53 to flow therethrough, The safety valve 39 is arranged to face the second unit 14, the second safety valve 53 of the second power storage element 13 is arranged to face the first unit 12, and the duct member 84 is connected to the first unit 12 and the first unit 12. Between the two units 14.

これにより、第１安全弁３９から排出されるガスを流通させるためのダクトと、第２安全弁５３から排出されるガスを流通させるためのダクトとを、１つのダクト部材８４で兼ねることができるので、部品点数を削減することができる。   Thereby, since the duct for circulating the gas discharged from the first safety valve 39 and the duct for circulating the gas discharged from the second safety valve 53 can be combined with one duct member 84, The number of parts can be reduced.

また、本実施形態によれば、第１ユニット１２と第２ユニット１４とが組み付けられた状態で、ダクト部材８４は第１ユニット１２と第２ユニット１４との間に配置されている。これにより、第１ユニット１２と第２ユニット１４とを組み付けるという作業によって、ダクト部材８４は、第１ユニット１２に押圧されると共に、第２ユニット１４にも押圧される。具体的には、第１ユニット１２の前部と、第２ユニット１４の後部とを突き合わせて、第１ユニット１２のボルト挿通孔３４にボルト３３を挿通し、第２ユニット１４のナット５０にボルト３３を螺合する。これにより、第１ユニット１２と第２ユニット１４との間に配されたダクト部材８４は、第１ユニット１２側に押圧されると共に、第２ユニット１４側にも押圧される。すると、第１ユニット１２の第１ゴムリング９１は、第１カバー２８の第１枠部４２内に押圧されて、第１ゴムリング９１が第１枠部４２と密着する。また、第２ユニット１４の第２ゴムリング９８は、第２カバー４５の第２枠部５５内に押圧されて、第２ゴムリング９８が第２枠部５５と密着する。   According to the present embodiment, the duct member 84 is disposed between the first unit 12 and the second unit 14 in a state where the first unit 12 and the second unit 14 are assembled. Thereby, the duct member 84 is pressed by the first unit 12 and also by the second unit 14 by the work of assembling the first unit 12 and the second unit 14. Specifically, the front part of the first unit 12 and the rear part of the second unit 14 are abutted, the bolt 33 is inserted into the bolt insertion hole 34 of the first unit 12, and the bolt 50 is inserted into the nut 50 of the second unit 14. 33 is screwed. Thereby, the duct member 84 arranged between the first unit 12 and the second unit 14 is pressed to the first unit 12 side and also to the second unit 14 side. Then, the first rubber ring 91 of the first unit 12 is pressed into the first frame portion 42 of the first cover 28, and the first rubber ring 91 comes into close contact with the first frame portion 42. Further, the second rubber ring 98 of the second unit 14 is pressed into the second frame portion 55 of the second cover 45, and the second rubber ring 98 comes into close contact with the second frame portion 55.

このように、ダクト部材８４は、第１ユニット１２の第１安全弁３９に対して確実に接続されると共に、第２ユニット１４の第２安全弁５３に対しても確実に接続される。このように、本実施形態によれば、第１ユニット１２と第２ユニット１４とを組み付けるという１つの作業によって、ダクト部材８４は、第１ユニット１２及び第２ユニット１４の双方に対して確実に接続されるようになっているので、蓄電モジュール１０の製造効率を向上させることができる。   In this way, the duct member 84 is reliably connected to the first safety valve 39 of the first unit 12 and is also securely connected to the second safety valve 53 of the second unit 14. As described above, according to the present embodiment, the duct member 84 is reliably attached to both the first unit 12 and the second unit 14 by one work of assembling the first unit 12 and the second unit 14. Since it is connected, the manufacturing efficiency of the electrical storage module 10 can be improved.

更に、ダクト部材８４を、第１ユニット１２及び第２ユニット１４のそれぞれに対して押圧するための部材が不要になるので、部品点数を削減することができる。   Furthermore, since the member for pressing the duct member 84 against each of the first unit 12 and the second unit 14 becomes unnecessary, the number of parts can be reduced.

また、本実施形態によれば、ダクト部材８４は、第１安全弁３９と、第２安全弁５３との間に、保護壁８７を有する。これにより、第１安全弁３９、又は第２安全弁５３が破断した場合において、第１安全弁３９及び第２安全弁５３の一方が、他方を損傷することを抑制することができる。   Further, according to the present embodiment, the duct member 84 has the protective wall 87 between the first safety valve 39 and the second safety valve 53. Thereby, when the 1st safety valve 39 or the 2nd safety valve 53 fractures, it can control that one of the 1st safety valve 39 and the 2nd safety valve 53 damages the other.

また、本実施形態によれば、ダクト部材８４は、第１ユニット１２と係止する第１係止部９３を有すると共に、第２ユニット１４と係止する第２係止部１００を有する。これにより、ダクト部材８４を介して、第１ユニット１２と第２ユニット１４とを仮組みすることができる。これにより、蓄電モジュール１０の組み付け工程を効率化することができる。   Further, according to the present embodiment, the duct member 84 includes the first locking portion 93 that locks with the first unit 12 and the second locking portion 100 that locks with the second unit 14. Thereby, the first unit 12 and the second unit 14 can be temporarily assembled via the duct member 84. Thereby, the assembly | attachment process of the electrical storage module 10 can be made efficient.

また、本実施形態によれば、第１蓄電素子１１は正極３７、及び負極３８を有し、第２蓄電素子１３は正極５１、及び負極５２を有しており、ダクト部材８４は、絶縁体からなると共に、正極３７と負極５２との間、及び負極３８と正極５１との間に配置されている。これにより、ダクト部材８４によって、正極３７と負極５２との間、及び負極３８と正極５１との間の絶縁を確実に図ることができる。   Further, according to the present embodiment, the first power storage element 11 has the positive electrode 37 and the negative electrode 38, the second power storage element 13 has the positive electrode 51 and the negative electrode 52, and the duct member 84 is made of an insulator. And between the positive electrode 37 and the negative electrode 52 and between the negative electrode 38 and the positive electrode 51. Thereby, the duct member 84 can reliably achieve insulation between the positive electrode 37 and the negative electrode 52 and between the negative electrode 38 and the positive electrode 51.

＜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。 <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）第１蓄電素子１１、及び第２蓄電素子１３は、リチウムイオン二次電池、ニッケル水素二次電池等の二次電池としてもよく、また、リチウムイオンキャパシタ、電気二重層キャパシタ等の、キャパシタとしてもよい。   (1) The 1st electrical storage element 11 and the 2nd electrical storage element 13 are good also as secondary batteries, such as a lithium ion secondary battery and a nickel hydride secondary battery, Moreover, such as a lithium ion capacitor and an electric double layer capacitor, A capacitor may be used.

（２）本実施形態においては、ダクト部材８４には保護壁８７が備えられる構成としたが、これに限られず、保護壁８７は省略してもよい。   (2) In this embodiment, the duct member 84 is provided with the protective wall 87. However, the present invention is not limited to this, and the protective wall 87 may be omitted.

（３）本実施形態においては、ダクト部材８４には第１係止部９３、及び第２係止部１００が形成される構成としたが、これに限られず、第１係止部９３、及び第２係止部１００は省略してもよい。   (3) In the present embodiment, the duct member 84 is configured to include the first locking portion 93 and the second locking portion 100, but is not limited thereto, and the first locking portion 93 and The second locking part 100 may be omitted.

（４）本実施形態においては、ダクト部材８４は絶縁性の合成樹脂からなる構成としたが、これに限られず、ダクト部材８４は、金属等の導体からなるものとしてもよい。   (4) In this embodiment, the duct member 84 is made of an insulating synthetic resin. However, the present invention is not limited to this, and the duct member 84 may be made of a conductor such as metal.

（５）本実施形態においては、第１蓄電素子１１、及び第２蓄電素子１３は略直方体形状をなすものとしたが、これに限られず、円筒形状としてもよいし、任意の形状を適宜に選択できる。   (5) In this embodiment, the 1st electrical storage element 11 and the 2nd electrical storage element 13 shall be substantially rectangular parallelepiped shape, However, it is not restricted to this, It is good also as a cylindrical shape, and arbitrary shapes are used suitably. You can choose.

１０：蓄電モジュール
１１：第１蓄電素子
１２：第１ユニット
１３：第２蓄電素子
１４：第２ユニット
３７：正極（第１電極）
３８：負極（第１電極）
３９：第１安全弁
５１：正極（第２電極）
５２：負極（第２電極）
５３：第２安全弁
８４：ダクト部材
８７：保護壁
９３：第１係止部
１００：第２係止部 10: power storage module 11: first power storage element 12: first unit 13: second power storage element 14: second unit 37: positive electrode (first electrode)
38: Negative electrode (first electrode)
39: First safety valve 51: Positive electrode (second electrode)
52: Negative electrode (second electrode)
53: Second safety valve 84: Duct member 87: Protection wall 93: First locking part 100: Second locking part

Claims (4)

第１安全弁を有する第１蓄電素子を備えた第１ユニットと、
第２安全弁を有する第２蓄電素子を備えた第２ユニットと、
前記第１安全弁及び前記第２安全弁に接続されて、前記第１安全弁及び前記第２安全弁の少なくとも一方から放出されたガスを流通させるダクト部材と、を備え、
前記第１蓄電素子の前記第１安全弁が前記第２ユニットに対向して配されており、
前記第２蓄電素子の前記第２安全弁が前記第１ユニットに対向して配されており、
前記ダクト部材が前記第１ユニットと前記第２ユニットとの間に配置されている蓄電モジュール。 A first unit including a first power storage element having a first safety valve;
A second unit including a second power storage element having a second safety valve;
A duct member that is connected to the first safety valve and the second safety valve and distributes the gas discharged from at least one of the first safety valve and the second safety valve;
The first safety valve of the first power storage element is disposed to face the second unit;
The second safety valve of the second power storage element is arranged to face the first unit;
The power storage module, wherein the duct member is disposed between the first unit and the second unit. 前記ダクト部材は、前記第１安全弁と前記第２安全弁との間に、保護壁を有する、請求項１に記載の蓄電モジュール。   The power storage module according to claim 1, wherein the duct member includes a protective wall between the first safety valve and the second safety valve. 前記ダクト部材は、前記第１ユニットと係止する第１係止部を有すると共に、前記第２ユニットと係止する第２係止部を有する、請求項１または請求項２に記載の蓄電モジュール。   The power storage module according to claim 1, wherein the duct member has a first locking portion that locks with the first unit, and a second locking portion that locks with the second unit. . 前記第１蓄電素子は第１電極を有し、前記第２蓄電素子は第２電極を有しており、
前記ダクト部材は、絶縁体からなると共に、前記第１電極と前記第２電極との間に配置されている、請求項１ないし請求項３のいずれか一項に記載の蓄電モジュール。 The first power storage element has a first electrode, the second power storage element has a second electrode;
4. The power storage module according to claim 1, wherein the duct member is made of an insulator and is disposed between the first electrode and the second electrode. 5.
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