WO2021139054A1 - Pressure plate structure of power battery pack module, and power battery pack module - Google Patents

Pressure plate structure of power battery pack module, and power battery pack module Download PDF

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Publication number
WO2021139054A1
WO2021139054A1 PCT/CN2020/088256 CN2020088256W WO2021139054A1 WO 2021139054 A1 WO2021139054 A1 WO 2021139054A1 CN 2020088256 W CN2020088256 W CN 2020088256W WO 2021139054 A1 WO2021139054 A1 WO 2021139054A1
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Prior art keywords
battery pack
power battery
main body
pack module
plate structure
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PCT/CN2020/088256
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French (fr)
Chinese (zh)
Inventor
江民
程振醒
王中玉
安学文
董连庆
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南京创源天地动力科技有限公司
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Priority to DE212020000072.7U priority Critical patent/DE212020000072U1/en
Publication of WO2021139054A1 publication Critical patent/WO2021139054A1/en

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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
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/04—Construction or manufacture in general
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

Definitions

  • the utility model relates to a power battery pack module pressing plate structure and a power battery pack module, which belong to the technical field of automobiles.
  • the battery pack modules are electric vehicles.
  • the performance of an important component directly affects the safety and reliability of electric vehicles.
  • a single battery module is formed by combining multiple cells together with a protection circuit and a protective shell. In the existing battery module, there is a risk that the middle cell will be connected in series when there is vibration and other working conditions during use. .
  • the utility model provides a power battery pack module pressure plate structure and a power battery pack module in order to solve the above-mentioned problems in the prior art, which can effectively solve the problem of stringing the middle cell in a single battery module under vibration conditions. risk.
  • a power battery pack module pressure plate structure comprising a main body and extensions formed by bending and extending downwards from the left and right ends of the main body respectively, the extensions being a left extension and a right extension , The lower ends of the left extension and the right extension respectively extend outward to form a mounting platform.
  • a row of pressure plate fixing holes arranged in the front and rear direction are formed on the mounting platform.
  • Each convex is formed with cell press blocks, the lower surface of the main body portion is also convex downwardly formed with spaced cell press blocks, and the upper surface of the main body is formed with positioning posts arranged in the left-right direction.
  • a row of reinforcing ribs arranged in a front-to-rear direction is formed between the left extension part and the installation platform, and between the right extension part and the installation platform, and a copper row fixing bracket is formed on the installation platform and located in the middle of the reinforcement ribs.
  • the upper surface of the copper bar fixing bracket is recessed downward to form a receiving cavity.
  • the utility model also adopts the following technical solution: a power battery pack module, comprising the aforementioned power battery pack module pressing plate structure, a box body, and a battery module installed in the box body, and the upper surface of the main body part is installed with silica gel
  • the silica gel pad is provided with a first positioning hole aligned up and down with the positioning column
  • a steel belt is installed above the silica gel pad
  • a second positioning hole aligned with the positioning pillar is provided on the steel belt.
  • the left and right ends are bent and extended to form a connecting part, and the connecting part is formed with a screw hole aligned with the fixing hole of the pressing plate up and down.
  • fixing screws are installed in the screw holes and the fixing holes of the pressure plate.
  • it also includes a copper bar clamped in the receiving cavity of the copper bar fixing bracket.
  • the utility model has the following beneficial effects: the power battery pack module pressing plate structure of the utility model can press the electric core, and can prevent the electric core from stringing during the vibration process, thereby improving the safety performance of the entire power battery pack module.
  • Figure 1 is a schematic diagram of the pressure plate structure of the power battery pack module of the present invention.
  • Figure 2 is a schematic diagram of the application of the pressure plate structure of the power battery pack module of the present invention.
  • the power battery pack module pressure plate structure of the present invention includes a main body 1 and extensions formed by bending downwards from the left and right ends of the main body 1, respectively.
  • the extensions are the left extension 2 and the right extension.
  • the lower ends of the extension 3, the left extension 2 and the right extension 3 respectively extend outward to form a mounting platform 4.
  • the mounting platform 4 is formed with a row of pressure plate fixing holes 5 arranged in a front-to-rear direction.
  • a row of reinforcing ribs 6 arranged in the front-rear direction is formed between the right extension portion 3 and the installation platform 4, and a copper row fixing bracket 7 is formed on the installation platform 4 and located in the middle of the reinforcing ribs 6.
  • the main body part 1 and the left extension part 2, the main body part 1 and the right extension part 3 are protrudingly formed with cell press blocks 8, and the lower surface of the main body part 1 is also convexly formed with spaced cell press blocks. 8.
  • Three rows of positioning posts 9 arranged in the left-right direction are formed on the upper surface of the main body 1.
  • the upper surface of the copper bar fixing bracket 7 is recessed downward to form a receiving cavity 70.
  • the power battery pack module includes a box body 10 and a battery module 11 installed in the box body 10.
  • the battery module 11 includes a battery cell (not labeled) and an aluminum plate (not labeled) on the side of the battery cell. ), the power battery pack module pressure plate structure is installed on the battery module 11 and the cell pressure block 8 is pressed against the aluminum plate, and the power battery pack module pressure plate structure presses the battery cell to limit the battery cell to prevent the battery cell from being in position. String up during vibration.
  • the silicone pad 12 is installed on the upper surface of the main body 1 and the silicone pad 12 is provided with a first positioning hole aligned with the positioning column 9 up and down.
  • a steel belt 13 is installed on the silicone pad 12, and the steel belt 13 is provided with and positioning
  • the column 9 is aligned with the second positioning hole up and down, and the positioning column 9 is installed in the first positioning hole and the second positioning hole to confine the silicone pad 12 and the steel belt 13 on the pressure plate structure of the power battery pack module.
  • the left and right ends of the steel belt 13 are bent and extended to form a connecting part.
  • the connecting part is formed with screw holes aligned up and down with the fixing hole 5 of the pressure plate.
  • the power battery pack module pressing plate structure is fixed on the box body 10.
  • the copper bar 15 is clamped in the receiving cavity 70 of the copper bar fixing bracket 7.
  • the pressure plate structure of the power battery pack module of the utility model can press the electric core, and can prevent the electric core from stringing during the vibration process, thereby improving the safety performance of the entire power battery pack module.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

A pressure plate structure of a power battery pack module and the power battery pack module. The pressure plate structure of the power battery pack module comprises a main body portion (1) and extension portions that are formed by bending downwards and extending from the left and right tail ends of the main body portion (1), respectively; the extension portions are a left extension portion (2) and a right extension portion (3); the lower tail ends of the left extension portion (2) and the right extension portion (3) separately extend outward to form a mounting platform (4); a row of pressure plate fixing holes (5) arranged in the front-to-rear direction are formed on the mounting platform (4); battery cell pressure blocks (8) protrude and are formed between the main body portion (1) and the left extension portion (2), and between the main body portion (1) and the right extension portion (3); and the lower surface of the main body portion (1) also protrudes downward to form spaced apart battery cell pressure blocks (8), and positioning posts (9) arranged along the left-to-right direction are formed on the upper surface of the main body portion (1). The pressure plate structure of the power battery pack module may press the battery cell, and may prevent the battery cell from moving upward during a vibration process, thereby improving the safety performance of the entire power battery pack module.

Description

一种动力电池包模组压板结构及动力电池包模组Power battery pack module pressing plate structure and power battery pack module 技术领域：Technical field:
本实用新型涉及一种动力电池包模组压板结构及动力电池包模组，其属于汽车技术领域。The utility model relates to a power battery pack module pressing plate structure and a power battery pack module, which belong to the technical field of automobiles.
背景技术：Background technique:
在汽车的电池***中，为了组成较大的能量***，需要将各个能量较小的单个电池模组通过串联的方式组合起来，形成不同规模的电池包模组，电池包模组是电动汽车的重要组成部分，其性能直接影响电动汽车的运动安全性和可靠性。而单个电池模组由多个电芯组合在一起再加上保护电路和保护壳形成，现有电池模组中在使用过程中，有振动等工况的发生会存在中间电芯上串的风险。In the automobile battery system, in order to form a larger energy system, individual battery modules with smaller energy need to be combined in series to form battery pack modules of different sizes. The battery pack modules are electric vehicles. The performance of an important component directly affects the safety and reliability of electric vehicles. However, a single battery module is formed by combining multiple cells together with a protection circuit and a protective shell. In the existing battery module, there is a risk that the middle cell will be connected in series when there is vibration and other working conditions during use. .
因此，确有必要对现有技术进行改进以解决现有技术之不足。Therefore, it is indeed necessary to improve the existing technology to solve the shortcomings of the existing technology.
实用新型内容：Utility model content:
本实用新型是为了解决上述现有技术存在的问题而提供一种动力电池包模组压板结构及动力电池包模组，其能够有效解决振动工况下单个电池模组中中间电芯上串的风险。The utility model provides a power battery pack module pressure plate structure and a power battery pack module in order to solve the above-mentioned problems in the prior art, which can effectively solve the problem of stringing the middle cell in a single battery module under vibration conditions. risk.
本实用新型采用如下技术方案：一种动力电池包模组压板结构，包括主体部以及自主体部的左右两末端分别向下弯折延伸形成的延伸部，延伸部为左延伸部和右延伸部，左延伸部和右延伸部的下末端分别向外延伸形成安装平台，安装平台上形成有一排前后方向排列的压板固定孔，所述主体部和左延伸部、主体部和右延伸部之间均凸起形成有电芯压块，主体部的下表面亦向下凸起形成有相间隔的电芯压块，所述主体部上表面上形成有沿着左右方向排列的定位柱。The utility model adopts the following technical solutions: a power battery pack module pressure plate structure, comprising a main body and extensions formed by bending and extending downwards from the left and right ends of the main body respectively, the extensions being a left extension and a right extension , The lower ends of the left extension and the right extension respectively extend outward to form a mounting platform. A row of pressure plate fixing holes arranged in the front and rear direction are formed on the mounting platform. Each convex is formed with cell press blocks, the lower surface of the main body portion is also convex downwardly formed with spaced cell press blocks, and the upper surface of the main body is formed with positioning posts arranged in the left-right direction.
进一步地，所述左延伸部和安装平台之间、右延伸部和安装平台之间形成有一排前后方向排列的加强筋，所述安装平台上且位于加强筋中间的位置形成有铜排固定支架，铜排固定支架的上表面向下凹陷形成有收容腔。Further, a row of reinforcing ribs arranged in a front-to-rear direction is formed between the left extension part and the installation platform, and between the right extension part and the installation platform, and a copper row fixing bracket is formed on the installation platform and located in the middle of the reinforcement ribs. , The upper surface of the copper bar fixing bracket is recessed downward to form a receiving cavity.
本实用新型还采用如下技术方案：一种动力电池包模组，包括前述的动力电池包模组压板结构、箱体以及安装于箱体内的电池模组，所述主体部的上表面安装有硅胶垫，所述硅胶垫上设有与定位柱相上下对齐的第一定位孔，硅胶垫上方安装有钢带，钢带上设有与定位柱相上下对齐的第二定位孔，所述钢带的左右两末端弯折延伸形成有连接部，连接部上形成有与压板固定孔相上下对齐的螺孔。The utility model also adopts the following technical solution: a power battery pack module, comprising the aforementioned power battery pack module pressing plate structure, a box body, and a battery module installed in the box body, and the upper surface of the main body part is installed with silica gel The silica gel pad is provided with a first positioning hole aligned up and down with the positioning column, a steel belt is installed above the silica gel pad, and a second positioning hole aligned with the positioning pillar is provided on the steel belt. The left and right ends are bent and extended to form a connecting part, and the connecting part is formed with a screw hole aligned with the fixing hole of the pressing plate up and down.
进一步地，所述螺孔和压板固定孔中安装有固定螺丝。Further, fixing screws are installed in the screw holes and the fixing holes of the pressure plate.
进一步地，还包括卡固于铜排固定支架的收容腔中的铜排。Further, it also includes a copper bar clamped in the receiving cavity of the copper bar fixing bracket.
本实用新型具有如下有益效果：本实用新型动力电池包模组压板结构能够压住电芯，在振动过程中能够避免电芯上串，进而提高整个动力电池包模组的安全性能。The utility model has the following beneficial effects: the power battery pack module pressing plate structure of the utility model can press the electric core, and can prevent the electric core from stringing during the vibration process, thereby improving the safety performance of the entire power battery pack module.
附图说明：Description of the drawings:
图1为本实用新型动力电池包模组压板结构的示意图。Figure 1 is a schematic diagram of the pressure plate structure of the power battery pack module of the present invention.
图2为本实用新型动力电池包模组压板结构的应用示意图。Figure 2 is a schematic diagram of the application of the pressure plate structure of the power battery pack module of the present invention.
具体实施方式：Detailed ways:
下面结合附图对本实用新型作进一步的说明。The utility model will be further explained below in conjunction with the drawings.
请参照图1所示，本实用新型动力电池包模组压板结构包括主体部1以及自主体部1的左右两末端分别向下弯折延伸形成的延伸部，延伸部分为左延伸部2和右延伸部3，左延伸部2和右延伸部3的下末端分别向外延伸形成安装平台4，安装平台4上形成有一排前后方向排列的压板固定孔5，左延伸部2和安装平台4之间、右延伸部3和安装平台4之间形成有一排前后方向排列的加强筋6，安装平台4上且位于加强筋6中间的位置形成有铜排固定支架7。主体部1和左延伸部2、主体部1和右延伸部3之间均凸起形成有电芯压块8，主体部1的下表面亦向下凸起形成有相间隔的电芯压块8。主体部1上表面上形成有三排沿着左右方向排列的定位柱9。铜排固定支架7的上表面向下凹陷形成有收容腔70。Please refer to Figure 1, the power battery pack module pressure plate structure of the present invention includes a main body 1 and extensions formed by bending downwards from the left and right ends of the main body 1, respectively. The extensions are the left extension 2 and the right extension. The lower ends of the extension 3, the left extension 2 and the right extension 3 respectively extend outward to form a mounting platform 4. The mounting platform 4 is formed with a row of pressure plate fixing holes 5 arranged in a front-to-rear direction. A row of reinforcing ribs 6 arranged in the front-rear direction is formed between the right extension portion 3 and the installation platform 4, and a copper row fixing bracket 7 is formed on the installation platform 4 and located in the middle of the reinforcing ribs 6. The main body part 1 and the left extension part 2, the main body part 1 and the right extension part 3 are protrudingly formed with cell press blocks 8, and the lower surface of the main body part 1 is also convexly formed with spaced cell press blocks. 8. Three rows of positioning posts 9 arranged in the left-right direction are formed on the upper surface of the main body 1. The upper surface of the copper bar fixing bracket 7 is recessed downward to form a receiving cavity 70.
请参照图2所示，动力电池包模组包括箱体10以及安装于箱体10内的电池模组11，电池模组11包括电芯(未标示)和位于电芯侧面的铝板(未标示)，动力电池包模组压板结构安装于电池模组11上且电芯压块8抵压在铝板上进而动力电池包模组压板结构 压住电芯对电芯进行限位以避免电芯在振动过程中上串。硅胶垫12安装于主体部1的上表面上且硅胶垫12上设有与定位柱9相上下对齐的第一定位孔，硅胶垫12上方安装有钢带13，钢带13上设有与定位柱9相上下对齐的第二定位孔，定位柱9安装于第一定位孔和第二定位孔中进而将硅胶垫12和钢带13限定于动力电池包模组压板结构上。钢带13的左右两末端弯折延伸形成有连接部，连接部上形成有与压板固定孔5相上下对齐的螺孔，固定螺丝14安装于螺孔和压板固定孔5中进而将钢带13和动力电池包模组压板结构固定于箱体10上。铜排15卡固于铜排固定支架7的收容腔70中。Please refer to FIG. 2, the power battery pack module includes a box body 10 and a battery module 11 installed in the box body 10. The battery module 11 includes a battery cell (not labeled) and an aluminum plate (not labeled) on the side of the battery cell. ), the power battery pack module pressure plate structure is installed on the battery module 11 and the cell pressure block 8 is pressed against the aluminum plate, and the power battery pack module pressure plate structure presses the battery cell to limit the battery cell to prevent the battery cell from being in position. String up during vibration. The silicone pad 12 is installed on the upper surface of the main body 1 and the silicone pad 12 is provided with a first positioning hole aligned with the positioning column 9 up and down. A steel belt 13 is installed on the silicone pad 12, and the steel belt 13 is provided with and positioning The column 9 is aligned with the second positioning hole up and down, and the positioning column 9 is installed in the first positioning hole and the second positioning hole to confine the silicone pad 12 and the steel belt 13 on the pressure plate structure of the power battery pack module. The left and right ends of the steel belt 13 are bent and extended to form a connecting part. The connecting part is formed with screw holes aligned up and down with the fixing hole 5 of the pressure plate. And the power battery pack module pressing plate structure is fixed on the box body 10. The copper bar 15 is clamped in the receiving cavity 70 of the copper bar fixing bracket 7.
本实用新型动力电池包模组压板结构能够压住电芯，在振动过程中能够避免电芯上串，进而提高整个动力电池包模组的安全性能。The pressure plate structure of the power battery pack module of the utility model can press the electric core, and can prevent the electric core from stringing during the vibration process, thereby improving the safety performance of the entire power battery pack module.
以上所述仅是本实用新型的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本实用新型原理的前提下还可以作出若干改进，这些改进也应视为本实用新型的保护范围。The above are only the preferred embodiments of the present utility model. It should be pointed out that for those of ordinary skill in the art, several improvements can be made without departing from the principles of the present utility model, and these improvements should also be regarded as the present invention. The scope of protection of utility models.

Claims (5)

  1. 一种动力电池包模组压板结构，其特征在于：包括主体部(1)以及自主体部(1)的左右两末端分别向下弯折延伸形成的延伸部，延伸部为左延伸部(2)和右延伸部(3)，左延伸部(2)和右延伸部(3)的下末端分别向外延伸形成安装平台(4)，安装平台(4)上形成有一排前后方向排列的压板固定孔(5)，所述主体部(1)和左延伸部(2)、主体部(1)和右延伸部(3)之间均凸起形成有电芯压块(8)，主体部(1)的下表面亦向下凸起形成有相间隔的电芯压块(8)，所述主体部(1)上表面上形成有沿着左右方向排列的定位柱(9)。A pressure plate structure of a power battery pack module, which is characterized in that it comprises a main body part (1) and an extension part formed by bending down and extending from the left and right ends of the main body part (1) respectively, and the extension part is a left extension part (2). ) And the right extension part (3), the lower ends of the left extension part (2) and the right extension part (3) respectively extend outward to form a mounting platform (4), and a row of pressure plates arranged in a front-to-back direction are formed on the mounting platform (4) The fixing hole (5), the main body part (1) and the left extension part (2), the main body part (1) and the right extension part (3) are protrudingly formed with a battery core pressing block (8), the main body part (1) The lower surface of (1) also protrudes downwardly with spaced cell press blocks (8), and the upper surface of the main body (1) is formed with positioning posts (9) arranged in the left-right direction.
  2. 如权利要求1所述的动力电池包模组压板结构，其特征在于：所述左延伸部(2)和安装平台(4)之间、右延伸部(3)和安装平台(4)之间形成有一排前后方向排列的加强筋(6)，所述安装平台(4)上且位于加强筋(6)中间的位置形成有铜排固定支架(7)，铜排固定支架(7)的上表面向下凹陷形成有收容腔(70)。The power battery pack module pressing plate structure according to claim 1, characterized in that: between the left extension (2) and the installation platform (4), between the right extension (3) and the installation platform (4) A row of reinforcing ribs (6) arranged in the front-to-rear direction is formed. A copper row fixing bracket (7) is formed on the installation platform (4) and located in the middle of the reinforcing ribs (6). The surface is recessed downward to form a receiving cavity (70).
  3. 一种动力电池包模组，其特征在于：包括如权利要求2所述的动力电池包模组压板结构、箱体(10)以及安装于箱体(10)内的电池模组(11)，所述主体部(1)的上表面安装有硅胶垫(12)，所述硅胶垫(12)上设有与定位柱(9)相上下对齐的第一定位孔，硅胶垫(12)上方安装有钢带(13)，钢带(13)上设有与定位柱(9)相上下对齐的第二定位孔，所述钢带(13)的左右两末端弯折延伸形成有连接部，连接部上形成有与压板固定孔(5)相上下对齐的螺孔。A power battery pack module, characterized in that it comprises the power battery pack module pressing plate structure according to claim 2, a box body (10), and a battery module (11) installed in the box body (10), A silicone pad (12) is installed on the upper surface of the main body part (1), the silicone pad (12) is provided with a first positioning hole aligned up and down with the positioning column (9), and the silicone pad (12) is installed above There is a steel strip (13). The steel strip (13) is provided with a second positioning hole aligned up and down with the positioning column (9). The left and right ends of the steel strip (13) are bent and extended to form a connecting part, which is connected Screw holes aligned up and down with the fixing holes (5) of the pressing plate are formed on the part.
  4. 如权利要求3所述的动力电池包模组，其特征在于：所述螺孔和压板固定孔(5)中安装有固定螺丝(14)。The power battery pack module according to claim 3, wherein a fixing screw (14) is installed in the screw hole and the fixing hole (5) of the pressure plate.
  5. 如权利要求4所述的动力电池包模组，其特征在于：还包括卡固于铜排固定支架(7)的收容腔(70)中的铜排(15)。The power battery pack module according to claim 4, characterized in that it further comprises a copper bar (15) clamped in the receiving cavity (70) of the copper bar fixing bracket (7).
PCT/CN2020/088256 2020-01-12 2020-04-30 Pressure plate structure of power battery pack module, and power battery pack module WO2021139054A1 (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007131158A (en) * 2005-11-10 2007-05-31 Mitsubishi Motors Corp Battery fixing device
CN102903873A (en) * 2012-10-17 2013-01-30 安徽江淮汽车股份有限公司 Battery pack locating device
CN204391172U (en) * 2014-12-31 2015-06-10 浙江吉利汽车研究院有限公司 A kind of storage battery clamp stand
CN207743264U (en) * 2018-01-06 2018-08-17 江西安驰新能源科技有限公司 A kind of battery modules for electric passenger vehicle
US20180366788A1 (en) * 2017-06-20 2018-12-20 Lg Chem, Ltd. Test apparatus including a fixing jig for vibration test of battery pack
CN209249524U (en) * 2018-12-29 2019-08-13 能际动力科技(苏州)有限公司 A kind of modular battery mounting bracket

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007131158A (en) * 2005-11-10 2007-05-31 Mitsubishi Motors Corp Battery fixing device
CN102903873A (en) * 2012-10-17 2013-01-30 安徽江淮汽车股份有限公司 Battery pack locating device
CN204391172U (en) * 2014-12-31 2015-06-10 浙江吉利汽车研究院有限公司 A kind of storage battery clamp stand
US20180366788A1 (en) * 2017-06-20 2018-12-20 Lg Chem, Ltd. Test apparatus including a fixing jig for vibration test of battery pack
CN207743264U (en) * 2018-01-06 2018-08-17 江西安驰新能源科技有限公司 A kind of battery modules for electric passenger vehicle
CN209249524U (en) * 2018-12-29 2019-08-13 能际动力科技(苏州)有限公司 A kind of modular battery mounting bracket

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