WO2021012290A1 - 电池包 - Google Patents

电池包 Download PDF

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Publication number
WO2021012290A1
WO2021012290A1 PCT/CN2019/097912 CN2019097912W WO2021012290A1 WO 2021012290 A1 WO2021012290 A1 WO 2021012290A1 CN 2019097912 W CN2019097912 W CN 2019097912W WO 2021012290 A1 WO2021012290 A1 WO 2021012290A1
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WO
WIPO (PCT)
Prior art keywords
plug
battery pack
battery
end plate
groove
Prior art date
Application number
PCT/CN2019/097912
Other languages
English (en)
French (fr)
Inventor
王志超
方伍梅
Original Assignee
江苏时代新能源科技有限公司
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 江苏时代新能源科技有限公司 filed Critical 江苏时代新能源科技有限公司
Priority to US16/499,268 priority Critical patent/US11721869B2/en
Priority to EP19769982.0A priority patent/EP3790073B1/en
Publication of WO2021012290A1 publication Critical patent/WO2021012290A1/zh

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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
    • H01M50/258—Modular batteries; Casings provided with means for assembling
    • 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
    • H01M50/262—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks
    • H01M50/264—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks for cells or batteries, e.g. straps, tie rods or peripheral frames
    • 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

  • This application relates to the technical field of energy storage equipment, and in particular to a battery pack.
  • the battery pack has higher requirements for the grouping efficiency of the battery module. Therefore, under the premise of meeting the design requirements and ensuring reliability, the battery module grouping methods and specifications are more diversified. Different from the previous single-row and low-string designs, it now tends to be a large module structure with multiple rows and multiple strings, such as sandwich models, no-module solutions, etc. In some solutions, due to the reduction of mechanical parts and mechanical locking with the box, the overall strength of the battery pack is insufficient, especially for some box packs with limited number of mounting points and limited space size. The connection strength between the modules is insufficient.
  • the embodiments of the present application provide a battery pack, which aims to improve the connection strength between modules in the battery pack.
  • a battery pack including: a module assembly, including more than two battery modules, the battery module includes a battery cell and an end plate, a plurality of battery cells are arranged side by side along the length direction of the battery pack , The end plate is located on at least one side of the multiple cells in the length direction, and two or more battery modules are arranged side by side along the width direction of the battery pack; the limit plate is located on at least one side of the module assembly in the length direction and corresponds to It is arranged on the end plate, the limit plate has an inner side facing the end plate, and the inner side corresponding to two or more end plates is respectively provided with two or more first insertion parts, and the surface of the end plate facing the limit plate corresponds to the first
  • the plug-in portion is provided with a second plug-in portion, and each battery module is respectively clamped and connected to the limiting plate through the first plug-in portion and the second plug-in portion.
  • one of the first plug-in portion and the second plug-in portion is a groove, and the other is a protrusion that matches the groove.
  • the first plug-in portion is a groove
  • the second plug-in portion is a protrusion that fits with the groove
  • the groove is a tapered groove, and the aperture of the groove gradually decreases in a direction away from the end plate, and/or the convex column is a tapered column, and the cross section of the convex column gradually decreases in a direction away from the surface of the end plate.
  • the first plug-in portion is a groove
  • the second plug-in portion is a protrusion that fits with the groove
  • the battery module also includes a strap.
  • the strap is sleeved on the outer periphery of the end plate and the plurality of battery cells.
  • the strap protrudes from the surface of the end plate.
  • the height of the convex post protruding from the surface of the end plate is greater than that of the strap protruding.
  • the height of the surface of the end plate, and at least part of the protrusions are located in the groove.
  • a sinking platform is recessed on the inner side surface, the first plug-in portion is disposed on the sinking platform, and at least part of the end plate is located in the sinking platform.
  • the battery module includes two end plates, and the two end plates are separately arranged on both sides of the plurality of cells in the length direction;
  • the two limit plates are separately arranged on both sides of the module assembly in the length direction.
  • the inner sides of the two limit plates are provided with a first plug-in part, and each end plate is provided with a Two plug-in part.
  • the two limit plates are separately arranged on both sides of the module assembly in the length direction;
  • the battery pack also includes a connector, which spans the module assembly and is connected between the two limiting plates.
  • the limiting plate includes a top and a bottom that are oppositely arranged along the height direction of the battery pack, and two side faces that are oppositely arranged along the width direction;
  • the connecting piece includes a side connecting piece and an intermediate connecting piece.
  • the side connecting piece is connected to the side surface of the limiting plate, and the intermediate connecting piece is connected to the top of the limiting plate.
  • a joint is formed between two adjacent battery modules in the width direction, and the intermediate connecting member is correspondingly arranged above the joint.
  • the connecting piece has two oppositely arranged connecting ends in its extension direction, and the connecting piece is connected to the limiting plate through the connecting ends;
  • the surface of the limiting plate is provided with limiting grooves corresponding to at least part of the connecting ends, and the connecting ends are limited in the limiting grooves.
  • the battery pack includes a module assembly and a limit plate.
  • the module assembly includes a plurality of battery modules arranged side by side along the width direction, and each battery module includes an end plate.
  • the inner side of the limit plate is provided with a first plug-in part
  • the end plate is provided with a second plug-in part.
  • a plurality of battery modules can be clamped in the limit through the second plug-in part and the first plug-in part of the end plate.
  • Bit board Therefore, a plurality of battery modules can be connected together by the limit plate, and the plurality of battery modules can be fixed between the limit plate and the side wall of the battery pack housing through the limit plate, thereby improving the battery pack The connection strength between multiple battery modules.
  • FIG. 1 is a schematic structural diagram of a battery pack according to an embodiment of the present application
  • FIG. 2 is a schematic diagram of an exploded structure of a battery pack according to an embodiment of the present application.
  • FIG. 3 is a schematic structural diagram of a reinforcing component of a battery pack according to an embodiment of the present application.
  • FIG. 4 is a schematic structural diagram of a limit plate of a battery pack according to an embodiment of the present application.
  • FIG. 5 is a schematic structural diagram of a battery module of a battery pack according to an embodiment of the present application.
  • Fig. 6 is a schematic structural diagram of an end plate of a battery pack according to an embodiment of the present application.
  • Module component 110, battery module; 111, battery cell; 112, end plate; 113, second plug-in part; 114, strap;
  • FIG. 1 is a schematic structural diagram of a battery pack provided by an embodiment of the application.
  • the battery pack includes a module assembly 100 and a reinforcing assembly 200 for improving the connection strength between the battery modules 110 in the module assembly 100.
  • the module assembly 100 includes more than two battery modules 110, the battery module 110 includes a battery cell 111 and an end plate 112, a plurality of battery cells 111 are arranged side by side along the length direction of the battery pack (the Y direction in FIG. 1) , The end plate 112 is located on at least one side of the plurality of battery cells 111 in the length direction, and two or more battery modules 110 are arranged side by side along the width direction of the battery pack (the X direction in FIG. 1); the limit plate 210 is located
  • the module assembly 100 is arranged on at least one side of the length direction and corresponds to the end plate 112.
  • the limit plate 210 has an inner side facing the end plate 112, and the inner side corresponds to two or more end plates 112, respectively.
  • the first plug-in portion 214, the surface of the end plate 112 facing the limiting plate 210 is provided with a second plug-in portion 113 corresponding to the first plug-in portion 214, and each battery module 110 passes through the first plug-in portion 214 and the second plug-in portion 214, respectively.
  • the connecting portion 113 and the limiting plate 210 are connected to each other by clamping.
  • the battery pack includes a module assembly 100 and a limiting plate 210.
  • the module assembly 100 includes a plurality of battery modules 110 arranged side by side along the width direction, and each battery module 110 includes an end plate 112.
  • the inner side of the limit plate 210 is provided with a first plug-in portion 214, and a second plug-in portion 113 is provided on the end plate 112.
  • a plurality of battery modules 110 pass through the second plug-in portion 113 and the first plug-in portion 113 of the end plate 112.
  • the connecting portion 214 can be clamped to the limiting plate 210.
  • the difference in length can be compensated by the first insertion portion 214 and the second insertion portion 113.
  • the stability of the relative position between each end plate 112, that is, each battery module 110 and the limit plate 210, is fully ensured. Therefore, a plurality of battery modules 110 can be connected together by the limit plate 210, and the plurality of battery modules 110 can be fixed between the limit plate 210 and the side wall 320 of the battery pack housing through the limit plate 210. In the meantime, the connection strength between the battery modules 110 in the battery pack is improved.
  • the battery pack also includes a lower shell 300.
  • the lower shell 300 has a bottom wall 310 and a side wall 320 connected to each other, and is surrounded by the bottom wall 310 and the side wall 320.
  • the module assembly 100 and the limiting plate 210 are all disposed in the containing space 330.
  • a compression beam 400 is further provided in the lower shell 300, and the compression beam 400 is spaced from one of the side walls 320. It is arranged to limit the limit plate 210 and the module assembly 100 between the compression beam 400 and the side wall 320 to ensure the stability of the relative position between the module assembly 100, the limit plate 210 and the lower shell 300.
  • the number of the limiting plate 210 is not limited. There may be only one limiting plate 210, and the battery pack fixes a plurality of battery modules 110 between the limiting plate 210 and the side wall 320 through one limiting plate 210.
  • the two limit plates 210 are spaced apart along the length, and the module assembly 100 is located between the two limit plates 210 .
  • the battery module 110 includes two end plates 112, and the two end plates 112 are located on both sides of the plurality of battery cells 111 in the length direction.
  • the inner side surfaces of the two limiting plates 210 are both provided with a first insertion portion 214, and the end plates 112 on both sides of the plurality of cells 111 are provided with a second insertion portion 113.
  • the module assembly 100 is clamped between the two limiting plates 210 through the first plug-in portion 214 and the second plug-in portion 113 to further improve the connection strength between the battery modules 110 in the battery pack.
  • a connecting member 220 may be connected between the two limit plates 210.
  • the connecting member 220 spans the module assembly 100 and is connected between the two limit plates 210 to ensure the stability of the relative position between the two limit plates 210.
  • the connecting member 220 has two oppositely arranged connecting ends 223 in its extension direction, and the connecting member 220 is connected to the limiting plate 210 through the connecting ends 223; the surface of the limiting plate 210 corresponds to at least part of the The connecting end 223 is provided with a limiting slot 215, and the connecting end 223 is limited in the limiting slot 215.
  • the limiting plate 210 is provided with a limiting slot 215, and the connecting end 223 is arranged in the limiting slot 215.
  • connection position of the connecting member 220 and the limiting plate 210 is not limited.
  • the limiting plate 210 includes a top 211 and a bottom 212 that are arranged oppositely along the height direction of the battery pack (the Z direction in FIG. 1). , And two side surfaces 213 oppositely arranged in the width direction; the connecting piece 220 includes a side connecting piece 221 and a middle connecting piece 222, the side connecting piece 221 is connected to the side surface 213 of the limiting plate 210, and the middle connecting piece 222 is connected to the limiting plate The top 211 of the 210.
  • the number of side connecting pieces 221 is not limited. Preferably, there are two side connecting pieces 221, and the two side connecting pieces 221 are respectively connected to the two side faces 213 of the limiting plate 210.
  • the module assembly 100 provides a limiting force in the width direction, and further improves the connection strength between the battery modules 110 in the battery pack.
  • the location of the middle connecting member 222 is not limited here, and the middle connecting member 222 may be located in the gap between two adjacent battery modules 110.
  • the intermediate connecting member 222 is arranged above the module assembly 100 so as not to increase the size of the module assembly 100 in the width direction, so as to achieve the purpose of saving space.
  • the position of the middle connector 222 above the module assembly 100 is not limited.
  • a joint is formed between two adjacent battery modules 110 in the width direction, and the middle connector 222 is correspondingly disposed above the joint.
  • the connecting piece 220 is made of conductive metal material, the connection can be avoided.
  • the component 220 affects the connection between the components in the isolation board assembly, and improves the safety performance of the battery pack.
  • the number of the intermediate connecting pieces 222 is not limited, and there may be only one intermediate connecting piece 222, or there may be more than two intermediate connecting pieces 222. When there are more than two intermediate connectors 222, the two or more intermediate connectors 222 are arranged at intervals along the width direction.
  • the arrangement of the first plug-in portion 214 and the second plug-in portion 113 is not limited herein.
  • one of the first plug-in portion 214 and the second plug-in portion 113 is a groove, and the other is a protrusion that fits with the groove.
  • the protruding post is inserted into the groove, so as to realize the mutual insertion of the first insertion portion 214 and the second insertion portion 113.
  • the shapes of the groove and the convex column are not limited here.
  • the groove is a tapered groove and the convex column is a tapered column.
  • the first insertion portion 214 can be made It can be tightly matched with the second plug-in portion 113, and it is also beneficial to align the first plug-in portion 214 and the second plug-in portion 113 with each other.
  • the first plug-in portion 214 is a groove
  • the second plug-in portion 113 is a protrusion that fits with the groove.
  • the second plug-in portion 113 provided on the end plate 112 is a convex post, which does not weaken the strength of the end plate 112.
  • the groove may be a blind groove, or the groove may be a through groove provided through the limiting plate 210.
  • the second insertion part 113 is a convex column
  • the groove is a tapered groove
  • the convex column is a tapered column
  • the hole diameter of the groove gradually moves away from the end plate 112. Decrease, the cross-section of the boss gradually decreases in the direction away from the surface of the end plate 112.
  • the groove is a tapered groove, which can increase the opening size of the groove.
  • the convex column is a tapered column, which can reduce the size of the free end of the convex column, thereby facilitating the insertion of the convex column into the groove and facilitating the first insertion portion 214 and the
  • the two plug-in parts 113 are aligned with each other.
  • the battery module 110 further includes a strap 114, which is sleeved on the outer periphery of the end plate 112 and the plurality of cells 111, and the strap 114 protrudes from the surface of the end plate 112.
  • the height of the protrusion protruding from the surface of the end plate 112 is greater than the height of the strap 114 protruding from the surface of the end plate 112, and at least part of the protrusion is located in the groove.
  • the height of the protruding post protruding from the surface of the end plate 112 is greater than the height of the protruding post of the cuff 114 on the surface of the end plate 112 so that the protruding post can protrude from the cuff 114.
  • the inner surface of the limiting plate 210 is recessed with a sinker 216, and the first plug-in portion 214 It is set on the sinking platform 216, and at least a part of the end plate 112 is located in the sinking platform 216.
  • the sinking table 216 can limit the end plate 112, thereby further improving the stability of the relative position between the end plate 112 and the limit plate 210.
  • the number of the second plug-in portions 113 on the end plate 112 is not limited.
  • One second plug-in portion 113 may be provided on the end plate 112, or more than two second plug-in portions 113 are provided on the end plate 112.
  • the two second plug-in parts 113 are arranged at intervals on the end plate 112, and correspondingly, the limit plate 210 is provided with more than two first plug-in parts 214 corresponding to the end plate 112.
  • the limit plate 210 and the end plate 112 can be buckled and connected to each other through the two or more second insertion portions 113 and the two or more first insertion portions 214, which further improves the relative relationship between the limit plate 210 and the end plate 112. The stability of the location.

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

Abstract

本申请实施例提供一种电池包，包括：模组组件，包括两个以上的电池模组，电池模组包括电芯和端板，多个电芯沿电池包的长度方向并排设置，端板位于多个电芯在长度方向上的至少一侧，两个以上的电池模组沿电池包的宽度方向并排设置；限位板，位于模组组件在长度方向的至少一侧并对应于端板设置，限位板具有朝向端板的内侧面，内侧面对应两个以上的端板分别设置有两个以上的第一插接部，端板朝向限位板的表面对应第一插接部设置有第二插接部，各电池模组分别通过第一插接部和第二插接部与限位板相互卡设连接。该限位板能够将多个电池模组固定于该限位板和电池包壳体的侧壁之间，提高电池包中多个电池模组之间的连接强度。

Description

电池包
相关申请的交叉引用
本申请要求享有于2019年7月22日提交的名称为“电池包”的中国专利申请第201921154826.8号的优先权，该申请的全部内容通过引用并入本文中。
技术领域
本申请涉及储能设备技术领域，尤其涉及一种电池包。
背景技术
随新能源汽车的蓬勃发展，电池包产品也随之不断更新其新技术。由于对能量密度及成本的双重要求，使得电池包对于电池模组的成组效率要求更高。因此在满足设计要求且保证可靠性的前提下，电池模组的成组方式及规格更加多样化。不同于以前的单列及串数少的设计，现在更趋相于多列多串的大模组结构，如三明治模型，无模组方案等。在一些方案中，由于减少了机械零部件以及与箱体的机械锁附，使得电池包整体的强度不足，特别是对于一些挂载点数量及空间尺寸受限的箱体包，电池包内各模组之间的连接强度不足。
因此，亟需一种新的电池包。
申请内容
本申请实施例提供一种电池包，旨在提高电池包内各模组之间的连接强度。
本申请实施例一方面提供了一种电池包，包括：模组组件，包括两个以上的电池模组，电池模组包括电芯和端板，多个电芯沿电池包的长度方向并排设置，端板位于多个电芯在长度方向上的至少一侧，两个以上的电 池模组沿电池包的宽度方向并排设置；限位板，位于模组组件在长度方向的至少一侧并对应于端板设置，限位板具有朝向端板的内侧面，内侧面对应两个以上的端板分别设置有两个以上的第一插接部，端板朝向限位板的表面对应第一插接部设置有第二插接部，各电池模组分别通过第一插接部和第二插接部与限位板相互卡设连接。
根据本申请的一个方面，第一插接部和第二插接部中，其中一者为凹槽，另一者为与凹槽相适配的凸柱。
根据本申请的一个方面，第一插接部为凹槽，第二插接部为与凹槽相适配的凸柱；
凹槽为锥形槽，凹槽的孔径在远离端板的方向上逐渐减小，和/或，凸柱为锥形柱，凸柱的横截面在远离端板表面的方向上逐渐减小。
根据本申请的一个方面，第一插接部为凹槽，第二插接部为与凹槽相适配的凸柱；
电池模组还包括箍带，箍带套设在端板及多个电芯的外周，箍带凸出于端板的表面设置，凸柱凸出于端板表面的高度大于箍带凸出于端板表面的高度，且至少部分凸柱位于凹槽内。
根据本申请的一个方面，内侧面凹陷形成有沉台，第一插接部设置于沉台，至少部分端板位于沉台内。
根据本申请的一个方面，电池模组包括两个端板，两个端板在长度方向上分设于多个电芯的两侧；
限位板为两个，两个限位板在长度方向上分设于模组组件的两侧，两个限位板的内侧面均设置有第一插接部，各端板上均设置有第二插接部。
根据本申请的一个方面，限位板为两个，两个限位板在长度方向上分设于模组组件的两侧；
电池包还包括连接件，连接件跨设模组组件并连接于两个限位板之间。
根据本申请的一个方面，限位板包括沿电池包高度方向相对设置的顶部和底部、及沿宽度方向相对设置的两个侧面；
连接件包括侧连接件和中间连接件，侧连接件连接于限位板的侧面， 中间连接件连接于限位板的顶部。
根据本申请的一个方面，中间连接件为两个以上，两个以上的中间连接件沿宽度方向间隔设置；
和/或，在宽度方向上相邻的两个电池模组之间形成接缝，中间连接件对应设置于接缝上方。
根据本申请的一个方面，连接件在其延伸方向上具有相对设置的两个连接端，连接件通过连接端连接于限位板；
限位板的表面对应至少部分连接端设置有限位槽，连接端限位于限位槽内。
在本申请中，电池包包括模组组件和限位板，模组组件包括沿宽度方向并排设置的多个电池模组，每个电池模组包括端板。限位板的内侧面设置有第一插接部，端板上设置有第二插接部，多个电池模组通过端板的第二插接部和第一插接部能够卡设于限位板。因此通过限位板能够将多个电池模组连接在一起，且通过该限位板能够将多个电池模组固定于该限位板和电池包壳体的侧壁之间，提高电池包中多个电池模组之间的连接强度。
附图说明
通过阅读以下参照附图对非限制性实施例所作的详细描述，本申请的其它特征、目的和优点将会变得更明显，其中，相同或相似的附图标记表示相同或相似的特征。
图1是本申请实施例的一种电池包的结构示意图；
图2是本申请实施例的一种电池包的爆炸结构示意图；
图3是本申请实施例的一种电池包的加强组件的结构示意图；
图4是本申请实施例的一种电池包的限位板的结构示意图；
图5是本申请实施例的一种电池包的电池模组的结构示意图；
图6是本申请实施例的一种电池包的端板的结构示意图。
附图标记说明：
100、模组组件；110、电池模组；111、电芯；112、端板；113、第二插接部；114、箍带；
200、加强组件；210、限位板；211、顶部；212、底部；213、侧面；214、第一插接部；215、限位槽；216、沉台；220、连接件；221、侧连接件；222、中间连接件；223、连接端；
300、下壳；310、底壁；320、侧壁；330、容纳空间；
400、压紧梁。
具体实施方式
下面将详细描述本申请的各个方面的特征和示例性实施例。在下面的详细描述中，提出了许多具体细节，以便提供对本申请的全面理解。但是，对于本领域技术人员来说很明显的是，本申请可以在不需要这些具体细节中的一些细节的情况下实施。下面对实施例的描述仅仅是为了通过示出本申请的示例来提供对本申请的更好的理解。在附图和下面的描述中，至少部分的公知结构和技术没有被示出，以便避免对本申请造成不必要的模糊；并且，为了清晰，可能夸大了部分结构的尺寸。此外，下文中所描述的特征、结构或特性可以以任何合适的方式结合在一个或更多实施例中。
在本申请的描述中，需要说明的是，除非另有说明，“多个”的含义是两个以上；术语“上”、“下”、“左”、“右”、“内”、“外”等指示的方位或位置关系仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。此外，术语“第一”、“第二”等仅用于描述目的，而不能理解为指示或暗示相对重要性。
下述描述中出现的方位词均为图中示出的方向，并不是对本申请的实施例的具体结构进行限定。在本申请的描述中，还需要说明的是，除非另有明确的规定和限定，术语“安装”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是直接相连，也可以间接相连。对于本领域的普通技术人员而言，可视具体情况理解上述术语在本申请中的具体含义。
为了更好地理解本申请，下面结合图1至图6对本申请实施例的电池 包进行详细描述。
图1为本申请实施例提供的一种电池包的结构示意图，电池包包括模组组件100和用于提高模组组件100内各电池模组110之间连接强度的加强组件200。
其中，模组组件100包括两个以上的电池模组110，电池模组110包括电芯111和端板112，多个电芯111沿电池包的长度方向(图1中的Y方向)并排设置，端板112位于多个电芯111在长度方向上的至少一侧，两个以上的电池模组110沿电池包的宽度方向(图1中的X方向)并排设置；限位板210，位于模组组件100在长度方向的至少一侧并对应于端板112设置，限位板210具有朝向端板112的内侧面，内侧面对应两个以上的端板112分别设置有两个以上的第一插接部214，端板112朝向限位板210的表面对应第一插接部214设置有第二插接部113，各电池模组110分别通过第一插接部214和第二插接部113与限位板210相互卡设连接。
在本申请中，电池包包括模组组件100和限位板210，模组组件100包括沿宽度方向并排设置的多个电池模组110，每个电池模组110包括端板112。限位板210的内侧面设置有第一插接部214，端板112上设置有第二插接部113，多个电池模组110通过端板112的第二插接部113和第一插接部214能够卡设于限位板210。且即使各电池模组110在长度方向上的延伸距离不一致，导致各电池模组110之间存在长度差，也能够通过第一插接部214和第二插接部113弥补这种长度差，充分保证各端板112，即各电池模组110和限位板210之间相对位置的稳定性。因此通过限位板210能够将多个电池模组110连接在一起，且通过该限位板210能够将多个电池模组110固定于该限位板210和电池包壳体的侧壁320之间，提高电池包中多个电池模组110之间的连接强度。
电池包的设置方式不仅限于此，在一些可选的实施例中，电池包还包括下壳300，下壳300具有相互连接的底壁310、侧壁320和由底壁310和侧壁320围合形成的容纳空间330，模组组件100和限位板210均设置于容纳空间330。
在一些可选的实施例中，为了保证限位板210稳定地位于下壳300的 容纳空间330内，下壳300内还设置有压紧梁400，压紧梁400和其中一个侧壁320间隔设置，以将限位板210和模组组件100限位于压紧梁400和该侧壁320之间，保证模组组件100、限位板210和下壳300之间相对位置的稳定性。
限位板210的个数不做限定，限位板210可以只有一个，电池包通过一个限位板210将多个电池模组110固定于该限位板210和侧壁320之间。
请一并参阅图2，在另一些可选的实施例中，限位板210为两个，两个限位板210沿长度方向间隔设置，模组组件100位于两个限位板210之间。电池模组110包括两个端板112，两个端板112在长度方向上位于多个电芯111的两侧。两个限位板210的内侧面均设置有第一插接部214，多个电芯111两侧的端板112上均设置有第二插接部113。通过第一插接部214和第二插接部113将模组组件100卡设于两个限位板210之间，进一步提高电池包中各电池模组110之间的连接强度。
请一并参阅图3，当限位板210为两个，且两个限位板210分设于模组组件100两侧时，两个限位板210之间还可以连接有连接件220，该连接件220跨设模组组件100并连接于两个限位板210之间，以保证两个限位板210之间相对位置的稳定性。
在一些可选的实施例中，连接件220在其延伸方向上具有相对设置的两个连接端223，连接件220通过连接端223连接于限位板210；限位板210的表面对应至少部分连接端223设置有限位槽215，连接端223限位于限位槽215内。在这些可选的实施例中，限位板210上设置有限位槽215，连接端223设置于限位槽215内，通过限位槽215的限位作用，能够提高连接端223和限位板210之间相对位置的稳定性。
连接件220和限位板210的连接位置不做限定，在一些可选的实施例中，限位板210包括沿电池包高度方向(图1中的Z方向)相对设置的顶部211和底部212、及沿宽度方向相对设置的两个侧面213；连接件220包括侧连接件221和中间连接件222，侧连接件221连接于限位板210的侧面213，中间连接件222连接于限位板210的顶部211。
侧连接件221的个数不做限定，优选的，侧连接件221为两个，两个侧连接件221分别连接于限位板210的两个侧面213，通过两个侧连接件221能够向模组组件100提供宽度方向上的限位力，进一步提高电池包中各电池模组110之间的连接强度。
中间连接件222的设置位置在此不做限定，中间连接件222可以位于相邻两个电池模组110之间的间隙内。优选的，中间连接件222跨设于模组组件100的上方，从而不会增加模组组件100在宽度方向上的尺寸，达到节约空间的目的。
中间连接件222在模组组件100上方的位置不做限定，优选的，在宽度方向上相邻的两个电池模组110之间形成接缝，中间连接件222对应设置于接缝上方。通常的，电池模组110的上方具有隔离板组件，中间连接件222对应于接缝设置，能够为隔离板组件让位，尤其是当连接件220为导电金属材料制成时，还能够避免连接件220影响隔离板组件内各零部件之间的连接，提高电池包的安全性能。
中间连接件222的个数不做限定，中间连接件222可以只有一个，或者中间连接件222为两个以上。当中间连接件222为两个以上时，两个以上的中间连接件222沿宽度方向间隔设置。
在上述任一实施例中，第一插接部214和第二插接部113的设置方式在此不做限定。例如，请一并参阅图4至图6，第一插接部214和第二插接部113中，其中一者为凹槽，另一者为与所述凹槽相适配的凸柱，令凸柱插接于凹槽内，从而实现第一插接部214和第二插接部113的相互插接。
凹槽和凸柱的形状在此不做限定，优选的，凹槽为锥形槽，凸柱为锥形柱，通过锥形槽和凸柱的相互配合，不仅能够令第一插接部214和第二插接部113可以紧密配合，而且还有利于第一插接部214和第二插接部113相互对准。
在一些实施例中，第一插接部214为凹槽，第二插接部113为与凹槽相适配的凸柱。设置在端板112的第二插接部113为凸柱，不会减弱端板112的强度。凹槽可以为盲槽，或者凹槽为贯穿限位板210设置的通槽。
当第一插接部214为凹槽，第二插接部113为凸柱，且凹槽为锥形槽，凸柱为锥形柱时，凹槽的孔径在远离端板112的方向上逐渐减小，凸柱的横截面在远离端板112表面的方向上逐渐减小。凹槽为锥形槽，能够增加凹槽的开口尺寸，凸柱为锥形柱，能够减小凸柱自由端的尺寸，从而便于将凸柱插入凹槽内，便于第一插接部214和第二插接部113相互对准。
在一些可选的实施例中，电池模组110还包括箍带114，箍带114套设在端板112及多个电芯111的外周，箍带114凸出于端板112的表面设置，凸柱凸出于端板112表面的高度大于箍带114凸出于端板112表面的高度，且至少部分凸柱位于凹槽内。
在这些可选的实施例中，凸柱凸出于端板112表面的高度大于箍带114凸柱于端板112表面的高度，令凸柱能够凸出于箍带114设置。在第一插接部214和第二插接部113相互插接时，便于将凸出插入凹槽内。
为了进一步提高各电池模组110和限位板210之间相对位置的稳定性，在一些可选的实施例中，限位板210的内侧面凹陷形成有沉台216，第一插接部214设置于沉台216，至少部分端板112位于沉台216内。在这些可选的实施例中，沉台216能够对端板112起到限位作用，从而进一步提高端板112和限位板210之间相对位置的稳定性。
端板112上第二插接部113的个数不做限定，端板112上可以设置有一个第二插接部113，或者，端板112上设置有两个以上的第二插接部113，两个第二插接部113在端板112上间隔设置，对应的，限位板210对应于该端板112设置有两个以上的第一插接部214。令限位板210和端板112可以通过两个以上的第二插接部113和两个以上的第一插接部214相互卡扣连接，进一步提高限位板210和端板112之间相对位置的稳定性。
本申请可以以其他的具体形式实现，而不脱离其构思和本质特征。因此，当前的实施例在所有方面都被看作是示例性的而非限定性的，本申请的范围由所附权利要求而非上述描述定义，并且，落入权利要求的含义和等同物的范围内的全部改变从而都被包括在本申请的范围之中。

Claims (10)

  1. 一种电池包，其中，包括：
    模组组件，包括两个以上的电池模组，所述电池模组包括电芯和端板，多个所述电芯沿所述电池包的长度方向并排设置，所述端板位于多个所述电芯在所述长度方向上的至少一侧，两个以上的所述电池模组沿所述电池包的宽度方向并排设置；
    限位板，位于所述模组组件在所述长度方向的至少一侧并对应于所述端板设置，所述限位板具有朝向所述端板的内侧面，所述内侧面对应两个以上的所述端板分别设置有两个以上的第一插接部，所述端板朝向所述限位板的表面对应所述第一插接部设置有第二插接部，各所述电池模组分别通过所述第一插接部和所述第二插接部与所述限位板相互卡设连接。
  2. 根据权利要求1所述的电池包，其中，所述第一插接部和所述第二插接部中，其中一者为凹槽，另一者为与所述凹槽相适配的凸柱。
  3. 根据权利要求1所述的电池包，其中，
    所述第一插接部为凹槽，所述第二插接部为与所述凹槽相适配的凸柱；
    所述凹槽为锥形槽，所述凹槽的孔径在远离所述端板的方向上逐渐减小，和/或，所述凸柱为锥形柱，所述凸柱的横截面在远离所述端板表面的方向上逐渐减小。
  4. 根据权利要求1所述的电池包，其中，
    所述第一插接部为凹槽，所述第二插接部为与所述凹槽相适配的凸柱；
    所述电池模组还包括箍带，所述箍带套设在所述端板及多个所述电芯的外周，所述箍带凸出于所述端板的表面设置，所述凸柱凸出于所述端板表面的高度大于所述箍带凸出于所述端板表面的高度，且至少部分所述凸柱位于所述凹槽内。
  5. 根据权利要求1所述的电池包，其中，所述内侧面凹陷形成有沉台，所述第一插接部设置于所述沉台，至少部分所述端板位于所述沉台内。
  6. 根据权利要求1所述的电池包，其中，
    所述电池模组包括两个所述端板，两个所述端板在所述长度方向上分设于多个所述电芯的两侧；
    所述限位板为两个，两个所述限位板在所述长度方向上分设于所述模组组件的两侧，两个所述限位板的所述内侧面均设置有所述第一插接部，各所述端板上均设置有所述第二插接部。
  7. 根据权利要求1所述的电池包，其中，
    所述限位板为两个，两个所述限位板在所述长度方向上分设于所述模组组件的两侧；
    所述电池包还包括连接件，所述连接件跨设所述模组组件并连接于两个所述限位板之间。
  8. 根据权利要求7所述的电池包，其中，
    所述限位板包括沿所述电池包高度方向相对设置的顶部和底部、及沿所述宽度方向相对设置的两个侧面；
    所述连接件包括侧连接件和中间连接件，所述侧连接件连接于所述限位板的侧面，所述中间连接件连接于所述限位板的顶部。
  9. 根据权利要求8所述的电池包，其中，
    所述中间连接件为两个以上，两个以上的所述中间连接件沿所述宽度方向间隔设置；
    和/或，在所述宽度方向上相邻的两个所述电池模组之间形成接缝，所述中间连接件对应设置于所述接缝上方。
  10. 根据权利要求7所述的电池包，其中，
    所述连接件在其延伸方向上具有相对设置的两个连接端，所述连接件通过所述连接端连接于所述限位板；
    所述限位板的表面对应至少部分所述连接端设置有限位槽，所述连接端限位于所述限位槽内。
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