WO2022068136A1 - 电池组 - Google Patents

电池组 Download PDF

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Publication number
WO2022068136A1
WO2022068136A1 PCT/CN2021/076468 CN2021076468W WO2022068136A1 WO 2022068136 A1 WO2022068136 A1 WO 2022068136A1 CN 2021076468 W CN2021076468 W CN 2021076468W WO 2022068136 A1 WO2022068136 A1 WO 2022068136A1
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WO
WIPO (PCT)
Prior art keywords
battery pack
fixing bracket
pack according
contact
connection
Prior art date
Application number
PCT/CN2021/076468
Other languages
English (en)
French (fr)
Inventor
李坤龙
王慎波
Original Assignee
东莞新能安科技有限公司
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 东莞新能安科技有限公司 filed Critical 东莞新能安科技有限公司
Publication of WO2022068136A1 publication Critical patent/WO2022068136A1/zh

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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
    • H01M50/20—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
    • H01M50/289—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs
    • H01M50/291—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs characterised by their shape
    • 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
    • H01M50/531—Electrode connections inside a battery casing
    • 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 energy, in particular to battery packs.
  • connection terminal of the battery includes a sampling piece and a sampling wire.
  • the sampling piece By welding the sampling piece to the tab of the battery cell, the sampling wire is welded to the sampling piece, and then the tab of the cell is connected to the circuit board.
  • the present application provides a battery pack including a circuit board and a cell assembly, the cell assembly includes a plurality of cells, each cell includes a tab, the battery pack further includes a plurality of connection terminals, and each connection terminal includes a contact a welding part and a connecting part, the connecting part connects the welding part and the contact part, the contact part contacts and electrically connects the tabs, the welding part welds and electrically connects the circuit board, the battery
  • the group also includes a fixing bracket for fixing the connection terminal.
  • the plurality of cells are stacked along the thickness direction of the cells; the contact parts of the connection terminals are arranged along the first direction, the connection parts of the connection terminals are arranged along the stacking direction of the cells, the first The direction is perpendicular to the stacking direction of the cells, and the contact portion and the connection portion form an L-shaped structure.
  • the contact portion is provided with a convex portion, the convex portion is disposed toward the tab, and the protruding portion contacts and is electrically connected to the tab.
  • the contact portion includes an elastic portion, and the convex portion is arranged on the elastic portion.
  • a side wall of the fixing bracket facing the battery core assembly is provided with an accommodating groove, and the connecting portion of the connecting terminal is fixed in the accommodating groove.
  • the connecting part includes a fixing part
  • the fixing part is fixedly connected with the fixing bracket
  • the fixing part includes a hook-shaped part
  • a flange part is arranged in the receiving groove
  • the flange part is connected to the fixing bracket.
  • the hook-shaped parts are snap-fastened to each other.
  • the side wall of the fixing bracket facing the cell assembly is provided with a first partition structure, and the first partition structure isolates the contact parts from each other.
  • the side wall of the fixing bracket facing the cell assembly is provided with a second partition structure, and the second partition structure isolates the connection parts from each other.
  • the circuit board is arranged along the stacking direction of the battery cells.
  • the battery pack further includes a bottom case, the bottom case accommodates the fixing bracket and the battery core assembly, the inner edge of the bottom case is provided with a limit buckle, and the limit buckle is used for installation and fixing the fixed bracket.
  • the battery pack further includes fillers, the fillers and the tabs are arranged at both ends of the cell assembly opposite to the tabs, and the fillers are arranged on the cell assemblies and the shells of the bottom case Between the walls, the packing is in a compressed state.
  • the material of the fixing bracket is an insulating material, or the surface of the fixing bracket is insulated and painted to insulate the surface of the fixing bracket.
  • the first partition structure includes at least two partitions.
  • the second partition structure includes at least two partition parts.
  • a side wall of the fixing bracket facing the battery core assembly is provided with a receiving groove
  • the connecting part of the connecting terminal is fixed in the receiving groove
  • the dividing part of the second partition structure is the groove of the receiving groove wall.
  • the connecting portion of the connecting terminal is accommodated in the accommodating groove, and the separating portion of the second separating structure is used to separate connecting portions of different connecting terminals.
  • the elastic part includes two sub-elastic parts; the two sub-elastic parts are respectively in contact with the tabs of the battery core.
  • the contact portion is provided with a bayonet, and the contact portion is clamped with the groove wall of the receiving groove through the bayonet.
  • the groove wall of the accommodating groove is provided with an opening, and the contact portion and the groove wall of the accommodating groove are clamped through the bayonet and the opening.
  • edge of the upper mouth of the bottom shell and the bottom of the filler are provided with inclined surfaces.
  • the battery pack provided by the present application uses connection terminals to replace the sampling wires and sampling sheets used in the prior art, and wireless welding process is performed in the production process, so the process is simple, the cost is low, and the safety is high.
  • FIG. 1 is a schematic partial structure diagram of a battery pack provided by an embodiment of the present application
  • FIG. 2 is a schematic diagram of a fixing bracket of a battery pack provided by an embodiment of the application.
  • FIG. 3 is a schematic diagram of assembling a connection terminal and a fixing bracket provided by an embodiment of the application
  • FIG. 4 is a schematic structural diagram of part A of the fixing bracket provided by an embodiment of the application.
  • connection terminal 5 is a schematic diagram of a three-dimensional structure of a connection terminal provided by an embodiment of the application.
  • FIG. 6 is a schematic diagram (1) of a three-dimensional structure of a connection terminal provided by another embodiment of the present application.
  • FIG. 7 is a schematic three-dimensional structural diagram of a contact portion of a connection terminal provided by another embodiment of the present application.
  • FIG. 8 is a schematic diagram (2) of a three-dimensional structure of a connection terminal provided by another embodiment of the present application.
  • FIG. 9 is a schematic structural diagram of a bottom case of a battery pack provided by another embodiment of the present application.
  • FIG. 10 is an assembled side view of a battery pack provided by another embodiment of the present application.
  • the flexible flat cable is relatively soft, and the structural strength is low, resulting in low reliability of the electrical connection between its terminals and the cell tabs, and it is difficult to meet the design requirements for cell sampling.
  • the embodiment of the present application provides an interconnection, in which the terminals of the flexible flat cable are relatively fixed on the insulating hard plate, and the weak part of the flexible flat cable (for example, the area where the terminal is located) is structurally reinforced by the insulating hard plate, so as to improve the strength of the terminal. The reliability of the electrical connection to the cell tabs.
  • the present application provides a battery pack.
  • FIG. 1 it is a schematic diagram of a partial structure of the battery pack.
  • the battery pack 1000 includes a circuit board 200 and a cell assembly 400 .
  • the cell assembly 400 may include a plurality of cells 410 , and the cells 410 may further include tabs 420 .
  • the battery pack 1000 further includes a connection terminal 100 , and the connection terminal 100 is used to sample the battery pack to collect data such as voltage and temperature of the battery cells.
  • the connection terminal 100 includes a contact portion 110 , a welding portion 130 , and a connecting portion 120 connecting the contact portion 110 and the welding portion 130 , wherein the contact portion 110 contacts and is electrically connected to the tab 420 of the cell 410 , and the welding portion 130 is welded and electrically connected to the circuit board 200 . Therefore, the circuit board 200 can be electrically connected to the tabs 420 of the battery cells 410 through the connection terminals 100 , thereby realizing data collection of the battery cells.
  • the battery pack 1000 further includes a fixing bracket 300 .
  • the fixing bracket 300 may be made of insulating material or formed by insulating coating on the surface.
  • a receiving groove 310 may also be provided on one side of the fixing bracket 300 .
  • a wireless welding process is implemented in the production process by using the connection terminals to replace the connection terminals of the sampling wire and the sampling sheet used in the prior art, so the process is simple, the cost is low, and the safety is high.
  • the battery pack 1000 includes: a circuit board 200 and a cell assembly 400 .
  • the cell assembly 400 may include multiple cells 410, and the cell 410 may further include tabs 420, wherein the multiple cells of the cell assembly 400 may be stacked along the thickness direction of the cells.
  • the battery pack 1000 further includes a fixing bracket 300 .
  • the fixing bracket 300 can be made of insulating material or formed by surface insulating coating.
  • One side of the fixing bracket 300 can also be provided with a receiving groove 310 .
  • a flange portion 311 is provided in the groove 310, and the flange portion 311 is used for fixed connection with other components.
  • the fixing bracket 300 may further be provided with a first partition structure 320 and a second partition structure 330 on the side wall facing the cell assembly 400 , wherein, referring to FIG. 3 , the first partition structure may include 321 , 322 and other partitions. Referring to FIG. 4 again, it is a detailed structural diagram of the second partition structure.
  • the plurality of partitions 331 and 332 of the second partition structure 330 can be spaced from the receiving groove 310 , that is, the second partition structure 330
  • the plurality of partitions 331 and 332 can be respectively used as groove walls of the receiving groove 310 to form the receiving groove 310 .
  • a flange portion 311 can also be provided in the receiving groove 310 , and the flange portion 311 can be used for connecting with the battery pack 1000 . connected or fixed to other structures.
  • the battery pack 1000 further includes a connection terminal 100 , which is a conductive material and is used for sampling the cells 410 of the battery pack 1000 to collect data such as voltage and temperature of the cells 410 .
  • the connection terminal 100 may include a contact portion 110 , a welding portion 130 , and a connecting portion 120 connecting the contact portion 110 and the welding portion 130 .
  • the contact portion 110 may be electrically connected by contacting the tab 420 of a certain cell 410 of the cell assembly 400 .
  • the contact portion 110 may also be connected by welding, conductive glue, etc.
  • This connection method is electrically connected to the tab 420 of the battery cell 410, and the specific method is not specifically limited here.
  • the welding part 130 can be welded with the circuit board 200 to realize electrical connection, and the welding method can adopt various welding processes such as surface mount technology (SMT for short).
  • SMT surface mount technology
  • the contact portion 110 of the connection terminal 100 may be arranged along the first direction, and the connection portion 120 of the connection terminal 100 may be arranged along the stacking direction of the above-mentioned cells.
  • the first direction is vertical In the cell stacking direction, the contact portion 110 and the connection portion 120 of the connection terminal 100 may form an L-shaped structure.
  • the contact portion 110 of the connection terminal 100 may also be provided with a convex portion 111 , and the convex portion 111 of the contact portion 110 may face the edge of the cell assembly 400 .
  • the tabs 420 of the battery cell 410 are provided, and the protruding portion 111 can be in contact with the tabs 420 to achieve electrical connection with the tabs 420 .
  • the contact portion 110 of the connection terminal 100 may further include an elastic portion 112 , and the protruding portion 111 may be disposed on the elastic portion 112 . Referring to FIG.
  • the elastic portion 112 may include two sub-elastic portions 112 a and 112 b.
  • the two sub-elastic portions 112 a and 112 b may be in contact and connected with the tabs 420 of the battery cells 410 , so that the contact portions 110 are in contact with each other. Appropriate deformation can be made during connection to make the contact more reliable.
  • the connecting portion 120 of the connecting terminal 100 can be accommodated in the receiving groove 310 of the fixing bracket 300 , and the plurality of separating portions 331 and 332 of the second separating structure 330 can accommodate the multiple connecting terminals
  • the connecting parts 120 of the battery pack 100 are separated.
  • the fixing bracket 300 is made of insulating material or the surface of the groove wall of the receiving groove 310 is coated with insulating material
  • the connecting parts 120 of the plurality of connecting terminals 100 of the battery pack 1000 can be separated by the second separation.
  • the structure 330 performs isolation, thereby preventing a short circuit between the connection terminals 100 , thereby ensuring the realization of the sampling function of the connection terminals 100 .
  • the connecting portion 120 of the connecting terminal 100 may further include a fixing portion 121, and the fixing portion 121 may be used for fixed connection with the fixing bracket 300.
  • the fixing portion 121 may include a hook-shaped portion , and as mentioned above, a flange portion 311 can be provided in the receiving groove 310 of the fixing bracket 300, and the flange portion 311 can be mutually snapped with the hook-shaped portion connected to the fixing portion 121 of the electronic 100, and then The fixed connection between the connection terminal 100 and the fixed bracket is realized.
  • the contact portion 110 of the connection terminal 100 of the battery pack 1000 may further include a bayonet 113, and the groove wall of the receiving slot 310 of the fixing bracket 300 may also be provided with an opening of the contact portion 110, and Referring to FIG. 3 , the bayonet 113 of the contact portion 110 of the connecting terminal 100 can be snapped with the opening of the receiving slot 310 , so that the connecting terminal 100 can be more reliably fixed to the fixing bracket 300 .
  • the connection terminal 100 of the battery pack 1000 and the fixing bracket 300 may also be fixed in various ways, such as welding, gluing, etc. The above is only an example.
  • the battery pack 1000 further includes a circuit board 200 , and the circuit board 200 may be arranged along the stacking direction of the battery cells, that is, the circuit board may be arranged on the circuit board shown in FIG. 1 .
  • the upper side of the core assembly 400 can also be disposed below the cell assembly 400, and even, in some cases, the circuit board 200 can also be disposed on the end side of the cell assembly 400. This is not specifically limited.
  • the battery pack 1000 may further include a bottom case 500 , the bottom case 500 may be used for accommodating the fixing bracket 300 and the battery core assembly 400 , and a limit buckle 510 may be provided on the edge of the bottom case 500 .
  • the buckle 510 can be used to install and fix the fixing bracket 300, and the fixing bracket 300 is installed and fixed with the connection terminal 100 through the groove 310 and the flange portion 320.
  • the connection terminal 100 can be fixed.
  • the convex part 111 of the contact part 110 of the contact part 110 is in contact with the tab 420 of the battery cell 410 to achieve reliable electrical connection.
  • the battery pack 1000 may further include fillers 600 , the fillers 600 may be disposed at both ends of the cell assembly 400 opposite to the tabs 420 of the cells 410 , and the fillers 600 It can also be arranged between the cell assembly 400 and the shell wall of the bottom case 500, and the filler 600 is in a compressed state after the installation is completed, so that the cell assembly 400 is forced to compress the contact portion 110 of the connection terminal 100, so that the connection can be made.
  • the contact between the terminal 100 and the tab 420 is closer, and the electrical connection is more reliable.
  • the edge of the upper opening of the bottom case 500 of the battery pack 1000 and the bottom of the filler 600 may also be provided with inclined surfaces, so as to facilitate the assembly and installation of the battery pack 1000 .
  • connection terminal and the fixing bracket in the above-mentioned embodiment, the installation convenience and installation reliability of the connection terminal are improved, the installation reliability of the device can be further improved, and the quality of the product can be improved.

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  • 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

本申请公开一种电池组，包括电路板和电芯组件，电芯组件包括多个电芯，电芯包括极耳，电池组还包括多个连接端子，连接端子包括接触部、焊接部和连接部，连接部连接焊接部和接触部，接触部连接于极耳，焊接部连接于电路板，电池组还包括固定支架，用于固定连接端子，通过利用上述连接端子代替采样线和采样片，使得在生产过程中实现无线焊接工艺，因此工艺简单，成本低，安全性高。

Description

电池组 技术领域
本申请涉及能源领域，具体而言涉及电池组。
背景技术
现有技术中，电池的连接端子包括采样片和采样线，通过将采样片焊接至电芯的极耳，采样线焊接至采样片，进而将电芯的极耳与电路板导通，但是该种方案在安装时定位困难，并且容易短路，实际的生产工艺复杂，生产效率低。
技术解决方案
本申请提供一种电池组，包括电路板和电芯组件，电芯组件包括多个电芯，每一电芯包括极耳，所述电池组还包括多个连接端子，每一连接端子包括接触部、焊接部及连接部，连接部连接所述焊接部和所述接触部，所述接触部接触并电连接所述极耳，所述焊接部焊接并电连接所述电路板，所述电池组还包括固定支架，用于固定所述连接端子。
其中，所述多个电芯沿电芯的厚度方向堆叠设置；所述连接端子的接触部沿第一方向设置，所述连接端子的连接部沿所述电芯堆叠方向设置，所述第一方向垂直于所述电芯堆叠方向，所述接触部和连接部形成L型结构。
其中，所述接触部设有凸部，所述凸部朝向所述极耳设置，所述凸部接触并电连接所述极耳。
其中，所述接触部包括弹性部，所述凸部设于弹性部。
其中，所述固定支架朝向所述电芯组件的侧壁设有收容槽，所述连接端子的连接部固定于所述收容槽。
其中，所述连接部包括固定部，所述固定部与所述固定支架固定连接，所述固定部包括勾形部，所述收容槽内设置有凸缘部，所述凸缘部与所述勾形部相互卡扣固定。
其中，所述固定支架朝向所述电芯组件的侧壁设有第一分隔结构，所述第 一分隔结构将所述接触部相互隔离。
其中，所述固定支架朝向电芯组件的侧壁设有设第二分隔结构，所述第二分隔结构将所述连接部相互隔离。
其中，所述电路板沿所述电芯堆叠方向设置。
其中，所述电池组进一步包括底壳，所述底壳***述固定支架和所述电芯组件，所述底壳内边缘设置有限位卡扣，所述限位卡扣用于安装并固定所述固定支架。
其中，所述电池组进一步包括填充件，所述填充件与所述极耳相对设置于所述电芯组件的两端，所述填充件设于所述电芯组件与所述底壳的壳壁之间，所述填充件呈压缩状态。
其中，所述固定支架的材质为绝缘材料，或所述固定支架表面绝缘涂装，以使所述固定支架表面绝缘。
其中，所述第一分隔结构包括至少两个分隔部。
其中，所述第二分隔结构包括至少两个分隔部。
其中，所述固定支架朝向所述电芯组件的侧壁设有收容槽，所述连接端子的连接部固定于所述收容槽，所述第二分隔结构的分隔部为所述收容槽的槽壁。
其中，所述连接端子的连接部收容于所述收容槽，所述第二分隔结构的分隔部用于将不同连接端子的连接部分隔。
其中，所述弹性部包括两个子弹性部；两个所述子弹性部分别与所述电芯的极耳相抵接。
其中，所述接触部开设有卡口，所述接触部通过所述卡口与所述收容槽的槽壁相卡接。
其中，所述收容槽的槽壁开设有开口，所述接触部及所述收容槽的槽壁通过所述卡口及所述开口相卡接。
其中，所述底壳的上口边缘及所述填充件底部均设置有倾斜面。
有益效果
本申请所提供的电池组，通过利用连接端子代替现有技术中所采用的采样线和采样片，在生产过程中无线焊接工艺，因此工艺简单，成本低，安全性高。
附图说明
图1为本申请一实施例所提供的电池组的局部结构示意图；
图2为本申请一实施例所提供的电池组的固定支架示意图；
图3为本申请一实施例所提供的连接端子与固定支架组装示意图；
图4为本申请一实施例所提供的固定支架A部结构示意图；
图5为本申请一实施例所提供的连接端子的三维结构示意图；
图6为本申请另一实施例所提供的连接端子的三维结构示意图(一)；
图7为本申请另一实施例所提供的连接端子接触部的三维结构示意图；
图8为本申请另一实施例所提供的连接端子的三维结构示意图(二)；
图9为本申请另一实施例所提供的电池组的底壳结构示意图；
图10为本申请另一实施例所提供的电池组的组装侧视图。
本发明的实施方式
为使本申请的目的、技术方案和优点更加清楚，下面将结合具体实施例及相应的附图，对本申请技术方案进行清楚、完整地描述。显然，所描述实施例仅是本申请一部分实施例，而非全部。基于本申请中的实施例，在不冲突的情况下，下述各个实施例及其技术特征可以相互组合。
应理解，在本申请实施例的描述中，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“顺时针”、“逆时针”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请相应实施例的技术方案和简化描述，而非指示或暗示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。
考虑到现有的电池模组中，柔性扁平电缆较软，结构强度低导致其端子与 电芯极耳的电连接可靠性低，难以满足电芯采样设计需求。本申请实施例提供一种互连件，将柔性扁平电缆的端子相对固定于绝缘硬板上，通过绝缘硬板对柔性扁平电缆的薄弱部分(例如端子所在区域)进行结构补强，来提高端子与电芯极耳的电连接可靠性。
本申请提供一种电池组，参见图1，为该种电池组的局部结构示意图，在本实施例中，该电池组1000包括：电路板200和电芯组件400。其中，该电芯组件400可以包括多个电芯410，该电芯410还可以包括极耳420。此外，参见图2及图3，电池组1000还包括连接端子100，该连接端子100用于对电池组进行采样，以采集电芯的电压、温度等数据。连接端子100包括：接触部110、焊接部130、连接该接触部110和焊接部130的连接部120，其中，接触部110接触并电连接电芯410的极耳420，而焊接部130则焊接并电连接至电路板200。从而电路板200可以通过连接端子100与电芯410的极耳420实现电连接，进而实现对电芯数据的采集。
此外，该电池组1000还包括固定支架300，该固定支架300可以由绝缘材料制成或者表面绝缘涂装而形成，该固定支架300的一侧还可以设置有收容槽310。
在本实施例中，通过利用连接端子代替现有技术中所采用的采样线和采样片的连接端子，从而在生产过程中实现无线焊接工艺，因此工艺简单，成本低，安全性高。
本申请的另一实施例提供一种电池组，该种电池组的局部结构示意图可以参见图1。在本实施例中，该电池组1000包括：电路板200和电芯组件400。其中，该电芯组件400可以包括多个电芯410，而电芯410还可以包括极耳420，其中电芯组件400的多个电芯可以沿电芯的厚度方向堆叠设置。
参见图2，该电池组1000还包括固定支架300，该固定支架300可以由绝缘材料制成或者表面绝缘涂装而形成，该固定支架300的一侧还可以设置有收容槽310，所述收容槽310内设置有凸缘部311，所述凸缘部311用于与其他部件进行固定连接。参见图2，固定支架300在朝向所述电芯组件400的侧壁上还 可以设有第一分隔结构320，和第二分隔结构330，其中，参见图3，第一分隔结构可以包括321、322等多个分隔部。再参见图4，为第二分隔结构处的细部结构图，如图所示，第二分隔结构330的多个分隔部331、332可以与收容槽310间隔设置，即：第二分隔结构330的多个分隔部331、332可以分别作为收容槽310的槽壁，以形成收容槽310，此外，在收容槽310内还可以设置有凸缘部311，该凸缘部311可用于与电池组1000的其他结构进行连接或固定。
此外，参见图5，电池组1000还包括连接端子100，该连接端子100为导电材料，用于对电池组1000的电芯410进行采样，以采集电芯410的电压、温度等数据。如图5所示，连接端子100可以包括：接触部110、焊接部130、连接该接触部110和焊接部130的连接部120。其中，参见图1，接触部110可以通过接触电芯组件400的某个电芯410的极耳420从而实现电连接，其他实施例中，接触部110还可采用焊接、导电胶粘连等多种连接方式与电芯410的极耳420实现电连接，具体方式，本处不做具体限定。如图1所示，焊接部130则可以与电路板200焊接从而实现电连接，焊接方式可以采用表面组装技术(简称SMT)等多种焊接工艺。在经过连接端子100的两端分别于电芯410的极耳420和电路板200电连接之后，电路板200可以通过连接端子100与电芯410的极耳420实现电连接，进而实现对电芯410数据的采集，从而实现该连接端子的采样功能。
在本实施例中，参见图1，该连接端子100的接触部110可以沿第一方向设置，而连接端子100的连接部120则可以沿上述电芯堆叠方向设置，此时，第一方向垂直于电芯堆叠方向，连接端子100的接触部110和连接部120则可以形成L型结构。
在本实施例中，参见图1、图5，在电池组1000中，连接端子100的接触部110还可以设置有凸部111，而该接触部110的凸部111可以朝向电芯组件400的电芯410的极耳420设置，所述凸部111可以与极耳420接触而与极耳420实现电连接。参见图6，连接端子100的接触部110还可以包括弹性部112，而凸部111则可以设置于该弹性部112。参见图7，该弹性部112可以包括两个子 弹性部112a、112b，再参见图1，这两个子弹性部112a、112b则可以与电芯410的极耳420接触连接，使得接触部110在接触连接时可以进行适当形变，使接触更为可靠。
在本实施例中，参见图3，连接端子100的连接部120可以收容于所述固定支架300的收容槽310，进而第二分隔结构330的多个分隔部331、332可以将多个连接端子100的连接部120进行分隔，当该固定支架300为绝缘材料或者收容槽310的槽壁表面涂有绝缘材料时，则该电池组1000的多个连接端子100的连接部120可以通过第二分隔结构330进行隔离，进而防止连接端子100之间的短路，进而保证连接端子100采样功能的实现。此外，在本实施例中，连接端子100的连接部120还可以包括固定部121，固定部121可以用于与固定支架300固定连接，再连接的实现方式上，固定部121可以包括勾形部，而正如上所述，在固定支架300的收容槽310内该可以设置有凸缘部311，而该凸缘部311则可以与连接电子100的固定部121的勾形部相互卡扣，进而实现连接端子100与固定支架的固定连接。在本实施例中，该电池组1000的连接端子100的接触部110还可以包括有卡口113，而在固定支架300的收容槽310的槽壁上还可以设置有接触部110的开口，而参见图3，连接端子100的接触部110卡口113可以可与收容槽310的开口进行卡扣，进而将连接端子100更为可靠的固定至固定支架300。当然的，电池组1000的连接端子100与固定支架300的固定方式还可以有焊接、胶粘等多种方式，以上仅为举例性说明，
在本实施例中，参见图1，电池组1000还包括电路板200，该电路板200可以所述电路板沿所述电芯堆叠方向设置，即所述电路板可以设置于图1视图的电芯组件400的上侧，当然也可以设置于该电芯组件400的下方，甚至于，在某些情况下，所述电路板200，还可以设置于所述电芯组件400的端侧，在此不做具体限定。
参见图9，电池组1000还可以进一步包括底壳500，该底壳500可以用于收容固定支架300和电芯组件400，在底壳500内的边缘还可以设置有限位卡扣510，该限位卡扣510则可以用于安装并固定固定支架300，而固定支架300通 过凹槽310和凸缘部320安装并固定有连接端子100，通过将固定支架300限位，则可以使得连接端子100的接触部110的凸部111与电芯410的极耳420接触而实现可靠的电连接。
在本实施例中，参见图10，电池组1000可以进一步包括填充件600，所述填充件600可以与电芯410的极耳420相对设置于电芯组件400的两端，并且该填充件600还可以设置于电芯组件400与底壳500的壳壁之间，该填充件600在安装完成之后呈压缩状态，使得电芯组件400受力压缩连接端子100的接触部110，从而可以使得连接端子100与极耳420接触更为紧密，电连接更为可靠。此外，在电池组1000的底壳500的上口边缘和填充件600底部，还可以设置有倾斜面，而便于电池组1000的组装和安装。
在本实施例中，通过对上述实施例中的连接端子和固定支架进行结构细化，提高连接端子安装方便性和安装可靠性，可以进一步的提高装置的安装可靠性，提升产品的品质。
尽管已经相对于一个或多个实现方式示出并描述了本申请，但是本领域技术人员基于对本说明书和附图的阅读和理解将会想到等价变型和修改。本申请包括所有这样的修改和变型，并且仅由所附权利要求的范围限制。特别地关于由上述组件执行的各种功能，用于描述这样的组件的术语旨在对应于执行所述组件的指定功能(例如其在功能上是等价的)的任意组件(除非另外指示)，即使在结构上与执行本文所示的本说明书的示范性实现方式中的功能的公开结构不等同。此外，尽管本说明书的特定特征已经相对于若干实现方式中的仅一个被公开，但是这种特征可以与如可以对给定或特定应用而言是期望和有利的其他实现方式的一个或多个其他特征组合。而且，就术语“包括”、“具有”、“含有”或其变形被用在具体实施方式或权利要求中而言，这样的术语旨在以与术语“包含”相似的方式包括。进一步地，应当理解的是，在本文中提及的“多个”是指两个或两个以上。对于本文中提及的步骤，其通过数字后缀仅仅是为了清晰表述实施例，便于理解，并不完全代表步骤执行的先后顺序，应当以逻辑关系的先后设定为思考。
以上所述仅为本申请的实施例，并非因此限制本申请的专利范围，凡是利用本申请说明书及附图内容所作的等效结构或等效流程变换，例如各实施例之间技术特征的相互结合，或直接或间接运用在其他相关的技术领域，均同理包括在本申请的专利保护范围内。

Claims (20)

  1. 一种电池组，包括：
    电路板；
    电芯组件，包括多个电芯，每一电芯包括极耳；所述电池组还包括多个连接端子，每一连接端子包括：接触部、焊接部及连接所述焊接部和所述接触部的连接部，所述接触部接触并电连接所述极耳，所述焊接部焊接并电连接所述电路板；
    所述电池组还包括固定支架，用于固定所述连接端子。
  2. 根据权利要求1所述的电池组，其中，所述多个电芯沿电芯的厚度方向堆叠设置；所述连接端子的接触部沿第一方向设置，所述连接端子的连接部沿所述电芯堆叠方向设置，所述第一方向垂直于所述电芯堆叠方向，所述接触部和连接部形成L型结构。
  3. 根据权利要求1所述的电池组，其中，所述接触部设有凸部，所述凸部朝向所述极耳设置，所述凸部接触并电连接所述极耳。
  4. 根据权利要求3所述的电池组，其中，所述接触部包括弹性部，所述凸部设于弹性部。
  5. 根据权利要求1所述的电池组，其中，所述固定支架朝向所述电芯组件的侧壁设有收容槽，所述连接端子的连接部固定于所述收容槽。
  6. 根据权利要求5所述的电池组，其中，所述连接部包括固定部，所述固定部与所述固定支架固定连接，所述固定部包括勾形部，所述收容槽内设置有凸缘部，所述凸缘部与所述勾形部相互卡扣固定。
  7. 根据权利要求1所述的电池组，其中，所述固定支架朝向所述电芯组件的侧壁设有第一分隔结构，所述第一分隔结构将所述接触部相互隔离。
  8. 根据权利要求7所述的电池组，其中，所述固定支架朝向电芯组件的侧壁设有设第二分隔结构，所述第二分隔结构将所述连接部相互隔离。
  9. 根据权利要求1所述的电池组，其中，所述电路板沿所述电芯堆叠方向设 置。
  10. 根据权利要求1所述的电池组，其中，所述电池组还包括底壳，所述底壳***述固定支架和所述电芯组件，所述底壳内边缘设置有限位卡扣，所述限位卡扣用于安装并固定所述固定支架。
  11. 根据权利要求10所述的电池组，其中，所述电池组还包括填充件，所述填充件与所述极耳相对设置于所述电芯组件的两端，所述填充件设于所述电芯组件与所述底壳的壳壁之间，所述填充件呈压缩状态。
  12. 根据权利要求1所述的电池组，其中，所述固定支架的材质为绝缘材料，或所述固定支架表面绝缘涂装。
  13. 根据权利要求7所述的电池组，其中，所述第一分隔结构包括至少两个分隔部。
  14. 根据权利要求8所述的电池组，其中，所述第二分隔结构包括至少两个分隔部。
  15. 根据权利要求14所述的电池组，其中，所述固定支架朝向所述电芯组件的侧壁设有收容槽，所述连接端子的连接部固定于所述收容槽，所述第二分隔结构的分隔部为所述收容槽的槽壁。
  16. 根据权利要求15所述的电池组，其中，所述连接端子的连接部收容于所述收容槽，所述第二分隔结构的分隔部用于将不同连接端子的连接部分隔。
  17. 根据权利要求4所述的电池组，其中，所述弹性部包括两个子弹性部；两个所述子弹性部分别与所述电芯的极耳相抵接。
  18. 根据权利要求6所述的电池组，其中，所述接触部开设有卡口，所述接触部通过所述卡口与所述收容槽的槽壁相卡接。
  19. 根据权利要求18所述的电池组，其中，所述收容槽的槽壁开设有开口，所述接触部及所述收容槽的槽壁通过所述卡口及所述开口相卡接。
  20. 根据权利要求11所述的电池组，其中，所述底壳的上口边缘及所述填充件底部均设置有倾斜面。
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