WO2019148613A1 - Module de batterie - Google Patents

Module de batterie Download PDF

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Publication number
WO2019148613A1
WO2019148613A1 PCT/CN2018/080688 CN2018080688W WO2019148613A1 WO 2019148613 A1 WO2019148613 A1 WO 2019148613A1 CN 2018080688 W CN2018080688 W CN 2018080688W WO 2019148613 A1 WO2019148613 A1 WO 2019148613A1
Authority
WO
WIPO (PCT)
Prior art keywords
output
hole
groove
plate
battery module
Prior art date
Application number
PCT/CN2018/080688
Other languages
English (en)
Chinese (zh)
Inventor
张文丛
陈亮美
王良诣
闵云飞
秦峰
童衍辰
Original Assignee
宁德时代新能源科技股份有限公司
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 宁德时代新能源科技股份有限公司 filed Critical 宁德时代新能源科技股份有限公司
Publication of WO2019148613A1 publication Critical patent/WO2019148613A1/fr

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    • 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
    • H01M50/50—Current conducting connections for cells or batteries
    • 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
    • H01M50/296—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by terminals of battery packs
    • 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 application relates to the field of battery technologies, and in particular, to a battery module.
  • the present application provides a battery module that increases the creepage distance between the output pole assembly and the module housing, thereby improving the insulation between the output pole assembly and the module housing, thereby improving the use of the battery module. safety.
  • the application provides a battery module including:
  • a module housing having a receiving cavity, wherein a sidewall of the module housing is provided with a through hole communicating with an interior of the receiving cavity;
  • An insulating protection structure the insulating protection structure is mounted on a sidewall of the module housing, the insulation protection structure includes a mounting plate, and the mounting plate is provided with a positioning groove, an output hole and a safety slot, and the output hole
  • the placement groove is penetrated in a thickness direction of the mounting plate, and the output hole and the through hole are oppositely disposed in a thickness direction of the side wall, and the safety groove and the positioning groove are perpendicular to the Arranging in the thickness direction of the mounting plate;
  • An output pole assembly is disposed in the seating groove, and one end of the output pole assembly passes through the output aperture.
  • the safety groove is an annular groove, and the annular groove surrounds the positioning groove.
  • the insulating protection structure further comprises a protective plate having a connecting portion and an extending portion, the connecting portion being connected to the mounting plate, the extending portion extending in a direction perpendicular to the mounting plate
  • the protective plate and the mounting plate enclose a mounting cavity, and the safety slot and the positioning groove are both located in the mounting cavity.
  • the insulation protection structure further includes a connecting plate, one end of the connecting plate is connected to a side of the safety groove that is away from the mounting groove, and the other end of the connecting plate is opposite to the protective plate The connection is connected.
  • a portion of the side wall is recessed away from the receiving cavity to form a escaping groove, the insulating protection structure is embedded in the escaping groove, and the through hole is opened in the escaping groove.
  • the output pole assembly includes an output pole
  • the output pole includes a positioning plate and a connecting post connected to the positioning plate
  • the positioning plate is located in the positioning groove
  • one end of the connecting column is in turn Through the output hole and the through hole, in a projection obtained in the thickness direction of the side wall, a projection surface of the output hole is located in a projection surface of the positioning plate.
  • a projection surface of the connecting post away from an end of the positioning plate is located in a projection surface of the output hole.
  • the output pole assembly further includes an output pole connecting piece, the output pole connecting piece includes a first connecting portion and a second connecting portion connected, the first connecting portion is connected to the positioning plate, The second connection portion is connected to the battery in the housing chamber.
  • At least one of the positioning plate and the first connecting portion is provided with a welding positioning hole.
  • the insulation protection structure is a unitary structure.
  • the insulation protection structure of the battery module provided by the present application is provided with a safety groove, and the creepage distance between the output pole assembly and the module outer casing can be increased by providing the safety groove, thereby alleviating the overvoltage or environment due to short time.
  • the insulation failure of the battery module caused by the factors improves the insulation effect of the insulation protection structure and improves the safety of use of the battery module.
  • FIG. 1 is a schematic structural view of an insulation protection structure in a battery module according to an embodiment of the present application
  • FIG. 2 is a schematic diagram of a partial structure of a battery module according to an embodiment of the present application.
  • FIG. 3 is a partial cross-sectional view of a battery module according to an embodiment of the present application.
  • the embodiment of the present application further provides a battery module including a module housing 20 having a receiving cavity 200, an output pole assembly 30, and a plurality of batteries (not shown). And an insulation protection structure 10, which may be disposed between the output pole assembly 30 and the sidewall of the module housing 20.
  • the insulation protection structure 10 can be made of PP (Polypropylene) material and glass fiber, and the insulation protection structure 10 can include a mounting plate 100 on which the placement groove for placing the output pole assembly 30 is disposed. 102. An output hole 104 for the one end of the output pole assembly 30 and a safety slot 106. The output hole 104 penetrates through the seating groove 102 in the thickness direction of the mounting plate 100, and the safety groove 106 and the positioning groove 102 are perpendicular to the installation.
  • the plates 100 are arranged in the thickness direction. It should be noted that the thickness direction of the mounting board 100 is the X direction shown in FIG.
  • the creepage distance between the output pole assembly 30 and the module housing 20 can be increased by providing the safety slot 106, and the insulation protection structure 10 can be prevented from being broken down to relieve the overvoltage or environment due to short time.
  • the insulation failure of the battery module caused by the factors improves the insulation effect of the insulation protection structure 10, thereby improving the safety of use of the battery module.
  • the safety groove 106 is an annular groove, and the annular groove surrounds the positioning groove 102, so that the creepage distance of the output pole assembly 30 and the module casing 20 in all directions can be increased to further improve The insulation efficiency of the insulation protection structure 10 further improves the safety of use of the battery module.
  • the insulation protection structure 10 further includes a shield 108 having a connection portion and an extension portion, the connection portion being connected to the mounting plate 100, and the extension portion being perpendicular to the mounting plate 100
  • the protective plate 108 and the mounting plate 100 enclose a mounting cavity 110, and the safety groove 106 and the positioning groove 102 are both located in the mounting cavity 110.
  • the shielding plate 108 is extended.
  • the mounting cavity 110 surrounding the mounting plate 100 can function to protect the output pole assembly 30, thereby improving the safety of use of the output pole assembly 30.
  • the output pole assembly 30 can be enlarged by providing the shield plate 108.
  • the creepage distance between the group outer casings 20 improves the insulation effect of the insulation protection structure 10, thereby improving the safety of use of the battery module.
  • the insulating protection structure 10 further includes a connecting plate 112.
  • One end of the connecting plate 112 is connected to a side of the slot of the safety slot 106 away from the mounting slot, and the other end of the connecting plate 112 is connected with the connecting portion of the shielding plate 108.
  • This design not only increases the creepage distance between the output pole assembly 30 and the module housing 20 (the creepage distance is the path described by the dashed line with double arrows in Fig. 3), which improves the insulation of the insulating shield structure 10.
  • the effect is that a relief opening is formed between the outer wall surface of the safety groove 106 and the outer wall surface of the connecting plate 112, so that the insulation protection structure 10 and the module housing 20 can be alleviated when the insulation protection structure 10 and the module housing 20 are assembled. In the case of interference, the insulating protection structure 10 and the module housing 20 are easily assembled.
  • the outer wall surface of the connecting plate 112 is a surface of the connecting plate 112 facing away from the mounting cavity 110.
  • the above-mentioned insulation protection structure 10 may be a unitary structure to ensure the structural strength of the insulation protection structure 10.
  • each battery is located in the accommodating cavity 200, and the sidewall 202 of the module housing 20 is provided with a through hole 202a communicating with the interior of the accommodating cavity 200, and the insulating protection structure 10 is mounted on the side of the module housing 20.
  • the output hole 104 of the insulating protection structure 10 and the through hole 202a of the side wall 202 of the module housing 20 are opposite to each other in the thickness direction of the side wall 202 of the module housing 20, and the output pole assembly 30 is placed.
  • one end of the output pole assembly 30 sequentially passes through the output hole 104 and the through hole 202a and is located outside the accommodating cavity 200, and the output pole assembly 30 can be external to the accommodating cavity 200.
  • the other end of the output pole assembly 30 is located within the accommodating chamber 200 and is coupled to each of the batteries located within the accommodating chamber 200.
  • a portion of the sidewall 202 of the module housing 20 is recessed away from the receiving cavity 200 to form a relief slot 202b that is embedded in the escape slot 202b, in particular, when the insulating shield 10 is embedded
  • the side of the insulating protection structure 10 facing the accommodating cavity 200 does not exceed the inner wall surface of the accommodating cavity 200, so as to prevent the insulating shielding structure 10 from interfering with the assembly of the batteries in the accommodating cavity 200, thereby facilitating the battery module.
  • the group was assembled smoothly.
  • the through hole 202a through which the one end of the output pole assembly 30 passes is opened in the escape groove 202b.
  • the inner wall surface of the accommodating chamber 200 is an inner wall surface of a portion of the side wall 202 of the module casing 20 except the escaping groove 202b.
  • the output pole assembly 30 includes an output pole 300 including a positioning plate 300a and a connecting post 300b connected to the positioning plate 300a.
  • the positioning plate 300a is located in the positioning groove 102, and the positioning plate 300a is located in the positioning groove 102, and the positioning pole 300
  • the positioning plate 300a can be welded to the positioning groove 102 to ensure the mounting stability of the insulating protection structure 10 and the output pole 300.
  • One end of the connecting post 300b sequentially passes through the output hole 104 and the through hole 202a and is located outside the receiving cavity 200.
  • the connecting post 300b can be connected to a mechanism such as a charging post.
  • the projection surface of the output hole 104 is located in the projection surface of the positioning plate 300a, and the positioning plate 300a is prevented from being positioned and engaged with the positioning groove 102.
  • the situation of passing through the output hole 104 ensures the positioning accuracy of the positioning plate 300a and the seating groove 102.
  • the projection surface of the connecting post 300b away from the end of the positioning plate 300a is located in the projection surface of the output hole 104, so that the design facilitates the smooth insertion of the connecting post 300b.
  • the output hole 104 is passed through, so that the assembly efficiency of the output pole assembly 30 and the insulation protection structure 10 can be improved.
  • the output pole assembly 30 further includes an output pole connecting piece 302.
  • the output pole connecting piece 302 includes a first connecting portion 302a and a second connecting portion 302b.
  • the first connecting portion 302a is connected to the positioning plate 300a.
  • the two connecting portions 302b are connected to the respective batteries.
  • the output connecting piece 302 can be L-shaped, that is, the first connecting portion 302a and the second connecting portion 302b can be connected in an L shape, so that the output connecting piece 302 and the output pole 300 and each battery are improved. The stability between the connections.
  • At least one of the positioning plate 300a and the first connecting portion 302a is provided with a welding positioning hole (not shown) for realizing the connection between the output connecting piece 302 and the output pole 300.
  • the positioning is to improve the welding efficiency between the output pole piece 302 and the output pole 300.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Battery Mounting, Suspending (AREA)
  • Connection Of Batteries Or Terminals (AREA)

Abstract

La présente invention concerne le domaine technique des batteries et, plus particulièrement, un module de batterie, comprenant : un boîtier de module; une structure de protection isolée; et un ensemble d'électrodes de sortie. Une paroi latérale du boîtier de module comporte un trou traversant en communication avec l'intérieur d'une cavité de logement du boîtier de module. La structure de protection isolée est installée au niveau de la paroi latérale du boîtier de module. La structure de protection isolée comprend une plaque d'installation ayant un évidement de placement, un trou de sortie et un évidement de sécurité. Le trou de sortie s'étend à travers l'évidement de placement dans une direction d'épaisseur de la plaque d'installation. Le trou de sortie et le trou traversant sont agencés à l'opposé l'un de l'autre dans une direction d'épaisseur de la paroi latérale. L'évidement de sécurité et l'évidement de placement sont agencés dans une direction perpendiculaire à la direction de l'épaisseur de la plaque d'installation. L'ensemble d'électrodes de sortie est placé dans l'évidement de placement, et une extrémité de celui-ci passe à travers le trou de sortie. Dans la solution technique, l'agencement de l'évidement de sécurité peut augmenter une distance de fuite entre l'ensemble d'électrodes de sortie et le boîtier de module, ce qui permet d'améliorer les performances d'isolation de la structure de protection isolée, et d'améliorer la sécurité d'utilisation du module de batterie.
PCT/CN2018/080688 2018-01-31 2018-03-27 Module de batterie WO2019148613A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201820164642.9 2018-01-31
CN201820164642.9U CN207818700U (zh) 2018-01-31 2018-01-31 电池模组

Publications (1)

Publication Number Publication Date
WO2019148613A1 true WO2019148613A1 (fr) 2019-08-08

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Application Number Title Priority Date Filing Date
PCT/CN2018/080688 WO2019148613A1 (fr) 2018-01-31 2018-03-27 Module de batterie

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CN (1) CN207818700U (fr)
WO (1) WO2019148613A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113523567A (zh) * 2021-08-30 2021-10-22 东莞市万连实业有限公司 电池模组铜排连接件的激光焊接夹具
CN114220616A (zh) * 2021-11-29 2022-03-22 国网北京市电力公司 防护装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110962561B (zh) * 2018-09-27 2022-01-07 比亚迪股份有限公司 电池模组固定支架和具有其的电池包

Citations (4)

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Publication number Priority date Publication date Assignee Title
KR20060112743A (ko) * 2005-04-27 2006-11-02 삼성에스디아이 주식회사 캡 조립체와 이를 구비하는 리튬이온 이차전지
CN2852411Y (zh) * 2005-04-26 2006-12-27 天津和平海湾电源集团有限公司 大功率塑料壳体联体电池
CN203743429U (zh) * 2013-11-29 2014-07-30 比亚迪股份有限公司 陶瓷密封环、电池盖板组件和电池
CN205645909U (zh) * 2016-05-24 2016-10-12 宁德时代新能源科技股份有限公司 电池顶盖组件及含该组件的电池

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2852411Y (zh) * 2005-04-26 2006-12-27 天津和平海湾电源集团有限公司 大功率塑料壳体联体电池
KR20060112743A (ko) * 2005-04-27 2006-11-02 삼성에스디아이 주식회사 캡 조립체와 이를 구비하는 리튬이온 이차전지
CN203743429U (zh) * 2013-11-29 2014-07-30 比亚迪股份有限公司 陶瓷密封环、电池盖板组件和电池
CN205645909U (zh) * 2016-05-24 2016-10-12 宁德时代新能源科技股份有限公司 电池顶盖组件及含该组件的电池

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113523567A (zh) * 2021-08-30 2021-10-22 东莞市万连实业有限公司 电池模组铜排连接件的激光焊接夹具
CN114220616A (zh) * 2021-11-29 2022-03-22 国网北京市电力公司 防护装置
CN114220616B (zh) * 2021-11-29 2024-04-26 国网北京市电力公司 防护装置

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Publication number Publication date
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