WO2017169443A1 - Bloc-batterie - Google Patents

Bloc-batterie Download PDF

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Publication number
WO2017169443A1
WO2017169443A1 PCT/JP2017/007509 JP2017007509W WO2017169443A1 WO 2017169443 A1 WO2017169443 A1 WO 2017169443A1 JP 2017007509 W JP2017007509 W JP 2017007509W WO 2017169443 A1 WO2017169443 A1 WO 2017169443A1
Authority
WO
WIPO (PCT)
Prior art keywords
lid
main body
plate
end surface
battery pack
Prior art date
Application number
PCT/JP2017/007509
Other languages
English (en)
Japanese (ja)
Inventor
拓 井上
加藤　崇行
浩生 植田
Original Assignee
株式会社豊田自動織機
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 株式会社豊田自動織機 filed Critical 株式会社豊田自動織機
Publication of WO2017169443A1 publication Critical patent/WO2017169443A1/fr

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Classifications

    • 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
    • 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
    • H01M50/282—Lids or covers for the racks or secondary casings characterised by the material having a layered structure
    • 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
    • H01M50/276—Inorganic 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

Definitions

  • the present invention relates to a battery pack.
  • the battery pack used as a battery of a vehicle such as an electric vehicle or a forklift is known.
  • the battery pack includes a plurality of battery modules and a housing that houses these battery modules.
  • the housing has a seal structure including a seal member and a spacer that defines a compression amount of the seal member.
  • the present invention has been made to solve such a problem, and an object of the present invention is to provide a battery pack in which a housing can be easily assembled.
  • a battery pack according to one embodiment of the present invention is a battery pack in which a battery module is accommodated in a box-shaped housing.
  • the housing accommodates the battery module, and an opening is provided on one surface, and surrounds the opening.
  • a body portion having an end surface extending in a ring shape, a cover portion provided so as to cover one surface of the body portion, facing the end surface of the body portion and closing the opening, and provided between the end surface and the lid portion.
  • a sealing member that seals between the main body part and the lid part by being pressed by the lid part, and the end surface of the main body part has a width from the inner side to the outer side of the main body part.
  • the sealing member is disposed in the first region on the outer side in the width direction of the end surface, and the lid portion covers the one surface of the main body portion and has a first peripheral portion that presses the sealing member.
  • a first plate disposed on the main body side of the first plate portion and the first plate portion; Together provided in a central portion excluding the first peripheral portion of a second plate portion having a second peripheral portion contacting the second region of the inner side in the width direction of the end surface.
  • the second plate portion in the lid portion, is provided in the central portion excluding the first peripheral portion of the first plate portion, and thus is slightly smaller than the first plate portion.
  • a seal member is disposed in the first region on the outer side in the width direction on the end surface of the housing.
  • the first peripheral portion of the first plate portion contacts the seal member, and the second peripheral portion of the second plate portion contacts the second region on the inner side in the width direction of the end surface.
  • the distance between the first plate portion and the end surface is defined by the thickness of the second plate portion, and the seal member is compressed by the first peripheral edge portion of the first plate portion. That is, the amount by which the first peripheral edge compresses the seal member is defined by the thickness of the second plate part.
  • the second plate portion has a role equivalent to that of the spacer.
  • the second plate portion is installed in accordance with the second region of the end face, and the first plate portion is pressed against the seal member, whereby the sealing by the seal member is performed. Therefore, it is not necessary to separately arrange the spacers, and the housing can be easily assembled.
  • the sealing member fits within the thickness range while maintaining the thickness of the lid according to the predetermined strength. Therefore, the battery pack can be reduced in size.
  • the first plate portion and the second plate portion are separate plate members. According to this structure, the cover part mentioned above can be formed easily.
  • the second plate portion is formed of a plurality of plate-like members. According to this configuration, it is possible to easily adjust the compression amount of the seal member by changing the number of plate-like members.
  • the lid portion further includes a fitting portion that is provided in a central portion excluding the second peripheral edge portion of the second plate portion and is fitted into the opening of the main body portion. According to this configuration, a step is formed between the second plate portion and the insertion portion, so that the lid portion and the main body portion can be easily positioned.
  • the battery module or a part different from the battery module housed in the housing is fixed to one surface of the lid portion facing the inside of the main body portion. According to this configuration, the battery module or another component can be easily assembled in the housing.
  • FIG. 1 is the perspective view which shows the cover part of the battery pack of FIG. 1
  • FIG. 2 is the figure which looked at the cover part from the back surface side
  • (c) is the side view of a cover part.
  • FIG. 1 is sectional drawing which shows the battery pack of FIG.
  • FIG. 1 is sectional drawing which shows the state before assembling the cover part and main-body part of the battery pack of FIG. 1
  • (b) is sectional drawing which shows the state which assembled the lid part and main-body part of the battery pack of FIG. .
  • the configuration of the battery pack 100 according to the present embodiment will be described with reference to FIG.
  • the battery pack 100 is used as a battery of a vehicle such as an electric vehicle or a forklift.
  • the battery pack 100 includes one or a plurality of battery modules M and a box-shaped housing H that houses the battery modules M.
  • the housing H of the battery pack 100 is composed of a main body portion 10 and a lid portion 20 and has a substantially rectangular parallelepiped shape as a whole.
  • the main body 10 includes a base plate 11 and side plates 12 provided on each of the four sides of the base plate 11, and an opening 13 is formed on a surface facing the base plate 11.
  • Each of the base plate 11 and the side plate 12 is a rectangular flat plate member.
  • the main body 10 is formed, for example, by welding the side plate 12 to the edge of the base plate 11.
  • the lid portion 20 is fixed to the end surface 12 a on the side of the opening 13 in the side plate 12 by a fixing member such as a bolt, for example, and closes the opening 13.
  • a material for forming the main body 10 and the lid 20 for example, a metal material such as iron or aluminum can be used.
  • the end surface 12a of the main body 10 has a first region 12a1 and a second region 12a2 of the second plate portion (see FIGS. 3 and 4).
  • the first region 12a1 is an outer annular region in the width direction of the end surface 12a
  • the second region 12a2 is an inner annular region in the width direction of the end surface 12a.
  • the width direction refers to a direction from the inner side to the outer side of the main body 10.
  • the seal member 30 has an annular shape as a whole and has a rectangular cross section.
  • the seal member 30 is disposed between the main body portion 10 and the lid portion 20, and is fixed to the end surface 12a of the side plate 12 with an adhesive or the like.
  • the seal member 30 has elasticity, and is sealed between the main body 10 and the lid 20 by being pressed by the lid 20.
  • the seal member 30 is made of a resin material such as EPDM, for example.
  • the thickness t30 of the seal member 30 can be determined based on the hardness of the material, the reaction force against the compression amount, or the like.
  • the lid portion 20 includes a first plate portion 21 and a second plate portion 22.
  • Each of the first plate portion 21 and the second plate portion 22 is a rectangular flat plate member.
  • the first plate portion 21 and the second plate portion 22 are joined in a state of being overlapped so that the centers thereof coincide and the sides are substantially parallel.
  • the second plate portion 22 is disposed on the main body portion 10 side of the first plate portion 21.
  • a step 23 equal to the thickness of the second plate portion 22 is formed between the first plate portion 21 and the second plate portion 22.
  • the cover part 20 may be formed from the single flat plate member instead of a separate flat plate member.
  • the dimensions in the X direction and the Y direction of the first plate part 21 are the same as the dimensions in the X direction and the Y direction of the main body part 10 in FIG.
  • the dimensions of the second plate part 22 in the X direction and the Y direction are smaller than the dimensions of the first plate part 21 in the X direction and the Y plane direction and larger than the dimension of the opening 13 of the main body part 10.
  • the second plate portion 22 is slightly smaller than the first plate portion 21.
  • the 1st board part 21 has the 1st peripheral part 21a which presses the sealing member 30 in the part except the center part to which the 2nd board part 22 was joined.
  • the second plate portion 22 has a second peripheral edge portion 22 a that abuts against the end surface 12 a of the main body portion 10 on one surface facing the opening 13 of the main body portion 10.
  • the thickness t21 of the first plate portion 21 and the thickness t22 of the second plate portion 22 are, for example, half the thickness of the base plate 11, respectively, and the base is in a state where the first plate portion 21 and the second plate portion 22 are joined. It can be formed to have the same thickness as the plate 11. However, the thickness t21 of the first plate portion 21 and the thickness t21 of the second plate portion 22 can be arbitrarily changed within a range having sufficient strength as a lid portion. Further, the thickness t21 of the first plate portion 21 and the thickness t22 of the second plate portion 22 may be different.
  • the lid portion 20 is produced, for example, by joining the first plate portion 21 and the second plate portion 22 together by welding. Moreover, the 1st board part 21 and the 2nd board part 22 may be integrally joined by fastening members, such as a volt
  • fastening members such as a volt
  • FIG. 3 is a cross-sectional view of the battery pack 100 in a state where the main body 10 and the lid 20 are assembled.
  • the seal member 30 is disposed in the first region 12 a 1 of the end surface 12 a of the main body 10.
  • the first peripheral edge portion 21a of the first plate portion 21 comes into contact with the seal member 30, and the second region 12a2 of the end surface 12a is in contact with the second plate portion 22 of the second plate portion 22. 2 peripheral edge part 22a contact
  • a step 23 is formed between the first peripheral edge 21a and the second peripheral edge 22a.
  • the distance between the first plate portion 21 and the end surface 12a is defined by the thickness t22 of the second plate portion 22. That is, the thickness t22 of the second plate portion 22 defines the amount by which the first peripheral edge portion 21a compresses the seal member 30.
  • the thickness t30 of the seal member 30 is the thickness of the second plate portion 22 in order to properly seal the space between the main body portion 10 and the lid portion 20 with the seal member 30. It is larger than t22.
  • the thickness t30 of the seal member 30 is increased by the first plate 21 to the thickness t22 of the second plate 22. Compressed.
  • the sealing member 30 is within the thickness range of the lid portion 20, the battery pack 100 can be reduced in size while maintaining the thickness of the lid portion 20 according to a predetermined strength.
  • FIG. 5 is a cross-sectional view of the housing H of the battery pack 200.
  • the battery pack 200 is different from the battery pack 100 in that a lid portion 220 having a second plate portion 22 formed of a plurality of plate members is provided in place of the lid portion 20.
  • the lid part 220 can be manufactured by welding and joining together at least one of the first plate part 21 and the second plate part 22 on the first plate part 21 side.
  • the second plate portion 22 of the lid portion 220 is formed of a plurality of (for example, two) plate-like members. By configuring the second plate portion 22 in this manner, the thickness t22 of the second plate portion 22 can be changed by changing the number of plate-like members in the second plate portion 22. Therefore, it is possible to easily adjust the compression amount of the seal member 30.
  • Other functions and effects of the lid portion 220 are the same as those of the lid portion 20, and thus description thereof is omitted.
  • FIG. 6 is a cross-sectional view of the housing H of the battery pack 300.
  • the battery pack 300 is different from the battery pack 100 in that a lid 320 having a fitting portion 24 is provided instead of the lid 20.
  • the lid portion 320 further includes a fitting portion 24 in addition to the first plate portion 21 and the second plate portion 22.
  • the fitting part 24 is provided in the central part excluding the second peripheral edge part 22 a of the second plate part 22, and a step 25 is formed between the fitting part 24 and the second plate part 22.
  • the size of the fitting portion 24 is slightly smaller than the size of the opening 13.
  • the fitting part 24 can be formed from a plate-shaped member, for example.
  • the insertion part 24 may be formed from a some rod-shaped member. Since the other structure of the cover part 320 is the same as that of the cover part 20, the description is abbreviate
  • the lid part 320 can be produced by welding the first plate part 21, the second plate part 22, and the fitting part 24 and integrally joining them. Moreover, you may join integrally by fastening members, such as a volt
  • the insertion part 24 is provided in the central part excluding the second peripheral edge part 22 a of the second plate part 22, and a step 25 is formed between the insertion part 24 and the second plate part 22.
  • FIG. 7 is a cross-sectional view showing the battery pack 400.
  • the battery pack 400 is different from the battery pack 100 in that a part of the battery modules MA housed in the housing H is fixed.
  • the battery module MA is fixed to one surface of the second plate portion 22 facing the inside of the main body portion 10.
  • other components may be fixed to the second plate portion 22.
  • a fastening member such as a bolt can be used. With such a configuration, it is possible to easily assemble a battery module or another component inside the housing H.
  • the fitting portion 24 may be further formed on the second plate portion 22 of the lid portion 220.
  • the battery module M or other components may be fixed to the second plate portion 22 of the lid portion 220.
  • the battery module M or other components may be fixed to the fitting portion 24 of the lid portion 320.
  • the cross-sectional shape of the seal member 30 is not limited to a rectangle, and may be a circle.
  • the end surface 12a of the main body 10 may be a flange portion that protrudes to the outside or inside of the housing H.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

Un boîtier pour un bloc-batterie selon la présente invention comporte : un corps qui loge un module de batterie, sur une surface duquel est formée une ouverture, et qui présente une surface d'extrémité s'étendant de façon annulaire pour entourer l'ouverture ; un couvercle qui est disposé de façon à couvrir une surface du corps et qui couvre l'ouverture ; et un élément d'étanchéité qui est disposé entre la surface d'extrémité et le couvercle et qui assure l'étanchéité entre le corps et le couvercle. La surface d'extrémité présente une largeur définie entre le côté interne et le côté externe du corps. L'élément d'étanchéité est disposé dans une première région sur le côté externe dans le sens de la largeur de la surface d'extrémité. Le couvercle comprend : une première partie plaque comprenant une première section périphérique qui appuie sur l'élément d'étanchéité ; et une seconde partie plaque qui est disposée dans une section centrale de la première partie plaque à l'exception de la première section périphérique et qui comprend une seconde section périphérique en contact avec une seconde région sur le côté interne dans le sens de la largeur de la surface d'extrémité.
PCT/JP2017/007509 2016-03-29 2017-02-27 Bloc-batterie WO2017169443A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2016066303A JP2017182998A (ja) 2016-03-29 2016-03-29 電池パック
JP2016-066303 2016-03-29

Publications (1)

Publication Number Publication Date
WO2017169443A1 true WO2017169443A1 (fr) 2017-10-05

Family

ID=59962961

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2017/007509 WO2017169443A1 (fr) 2016-03-29 2017-02-27 Bloc-batterie

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JP (1) JP2017182998A (fr)
WO (1) WO2017169443A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111512462A (zh) * 2017-11-09 2020-08-07 莱昂智能有限公司 用于可堆叠电池模块的模块壳体、电池模块以及电池堆

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7492496B2 (ja) 2021-11-15 2024-05-29 プライムプラネットエナジー＆ソリューションズ株式会社 電池パック

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6426885U (fr) * 1987-08-08 1989-02-15
JP2003264379A (ja) * 2002-03-08 2003-09-19 Fujikura Ltd 電子ユニット用格納箱のシール構造
JP2004286215A (ja) * 2003-03-21 2004-10-14 Tyco Electronics Pretema Gmbh & Co Kg 構造物および構造物の製造方法
JP2012533845A (ja) * 2009-07-15 2012-12-27 ルート ジェイディー，インコーポレイテッド 二次電池及びエネルギー貯蔵装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58123959U (ja) * 1982-02-18 1983-08-23 株式会社東芝 盤の保護構造
JP4300015B2 (ja) * 2002-10-28 2009-07-22 株式会社東芝 密閉形電気機器筐体
JP2004311318A (ja) * 2003-04-10 2004-11-04 Sanyo Gs Soft Energy Co Ltd 電池
JP5949422B2 (ja) * 2012-10-11 2016-07-06 株式会社豊田自動織機 産業車両
JP6478458B2 (ja) * 2014-01-28 2019-03-06 三菱電機株式会社 パッキン取付機構
JP6233071B2 (ja) * 2014-02-05 2017-11-22 株式会社豊田自動織機 電池パック及び電池パックの製造方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6426885U (fr) * 1987-08-08 1989-02-15
JP2003264379A (ja) * 2002-03-08 2003-09-19 Fujikura Ltd 電子ユニット用格納箱のシール構造
JP2004286215A (ja) * 2003-03-21 2004-10-14 Tyco Electronics Pretema Gmbh & Co Kg 構造物および構造物の製造方法
JP2012533845A (ja) * 2009-07-15 2012-12-27 ルート ジェイディー，インコーポレイテッド 二次電池及びエネルギー貯蔵装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111512462A (zh) * 2017-11-09 2020-08-07 莱昂智能有限公司 用于可堆叠电池模块的模块壳体、电池模块以及电池堆

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Publication number Publication date
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