CN205723727U - Power battery pack - Google Patents
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- CN205723727U CN205723727U CN201620373672.1U CN201620373672U CN205723727U CN 205723727 U CN205723727 U CN 205723727U CN 201620373672 U CN201620373672 U CN 201620373672U CN 205723727 U CN205723727 U CN 205723727U
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Abstract
本实用新型涉及一种动力电池组。其技术方案：所述动力电池组正负极分别设有铜铝复合板，所述铜铝复合板一面是铜板面，所述铜铝复合板另一面是铝板面；所述铜板面朝向动力电池组电极，所述铝板面背向动力电池组电极；所述每一排的单体电池(1)之间通过一根保险丝(2)焊接并联，所述单体电池电极和保险丝(2)之间采用超声波焊接，所述铝板面和保险丝(2)之间采用超声波焊接。采用本实用新型的技术方案后，不仅加工方便、降低成本，电池组并联连接稳定、可靠、导电性能佳。
The utility model relates to a power battery pack. Its technical solution: the positive and negative electrodes of the power battery pack are respectively provided with copper-aluminum composite plates, one side of the copper-aluminum composite plate is a copper plate surface, and the other side of the copper-aluminum composite plate is an aluminum plate surface; the copper plate surface faces the power battery group of electrodes, the aluminum plate faces away from the electrodes of the power battery group; the single cells (1) of each row are welded in parallel through a fuse (2), and the electrodes of the single cells and the fuse (2) Ultrasonic welding is adopted between the aluminum plate surface and the fuse (2). After adopting the technical solution of the utility model, not only the processing is convenient and the cost is reduced, but also the parallel connection of battery packs is stable, reliable and has good electrical conductivity.
Description
技术领域technical field
本实用新型涉及一种动力电池组，特别涉及一种大功率动力电池组。其能够用于电动汽车的电池组、电动摩托车的电池组、电动自行车的电池组等动力电池组的制造加工技术领域。The utility model relates to a power battery pack, in particular to a high-power power battery pack. It can be used in the technical field of manufacturing and processing power battery packs such as battery packs of electric vehicles, battery packs of electric motorcycles, and battery packs of electric bicycles.
背景技术Background technique
大功率动力电池组作为一种动力来源，是当今发展电动汽车、应急通信设备、以及特种设备供电电源的首选。As a source of power, high-power power battery packs are the first choice for the development of electric vehicles, emergency communication equipment, and power supplies for special equipment.
电池组就是对各个电池单元进行加工、封装等处理，使之按一定串联、并联方式组成一个可以满足用户需求的电池组或电池包的过程，电动汽车的动力电池组包含将动力电池模组、电池管理系统(英文：BATTERY MANAGEMENTSYSTEM，简称：BMS)等集成固定在高压电池箱内，使之成为能够满足电动汽车安全、可靠行驶所要求的各项性能指标的动力电池系统的总成。The battery pack is the process of processing and packaging each battery unit so that it can be connected in series or in parallel to form a battery pack or battery pack that can meet user needs. The power battery pack of an electric vehicle includes a power battery module, The battery management system (English: BATTERY MANAGEMENT SYSTEM, referred to as: BMS) is integrated and fixed in the high-voltage battery box, making it an assembly of the power battery system that can meet various performance indicators required by electric vehicles for safe and reliable driving.
电动汽车的电池组的连接有先串联后并联、先并联后串联以及串并联混合连接等方式。现有的连接方法包括：第一，各个电池和镍带直接用电阻焊机点焊连接；第二，各个电池和铜镍复合片直接通过电阻焊机点焊连接。为方便理解，现有电池组的并联连接方式如图7所示，动力电池组包括有若干单体电池1，若干单体电池1通过电池支架构成动力电池组，单体电池的正负极均通过间断的保险丝与现有的汇流板焊接。The battery packs of electric vehicles are connected in series first and then in parallel, first in parallel and then in series, and in series-parallel hybrid connection. The existing connection methods include: first, each battery and nickel strip are directly connected by spot welding with a resistance welding machine; second, each battery and a copper-nickel composite sheet are directly connected by spot welding with a resistance welding machine. For the convenience of understanding, the parallel connection mode of the existing battery pack is shown in Figure 7. The power battery pack includes several single cells 1, and the several single cells 1 constitute the power battery pack through the battery bracket. Solder to existing manifolds via interrupted fuses.
实际使用过程中，发明人发现：运用现有方式加工动力电池组，制造工艺比较复杂，成本很高；电池组导电性能不佳，电池组易出现一致性变差，降低续行里程。During the actual use, the inventors found that: using the existing method to process the power battery pack, the manufacturing process is relatively complicated and the cost is high; the electrical conductivity of the battery pack is not good, and the consistency of the battery pack tends to deteriorate, which reduces the mileage.
发明内容Contents of the invention
本实用新型要实现的目的：电池组并联连接稳定、可靠、导电性能佳。The purpose to be realized by the utility model: the parallel connection of battery packs is stable, reliable and has good electrical conductivity.
动力电池组，其包括有若干单体电池，所述若干单体电池通过电池支架构成动力电池组本体，其特征在于：A power battery pack, which includes a plurality of single cells, and the plurality of single cells constitute the main body of the power battery pack through a battery bracket, and is characterized in that:
所述动力电池组正负极分别设有铜铝复合板，所述铜铝复合板一面是铜板面，所述铜铝复合板另一面是铝板面；所述铜板面朝向动力电池组电极，所述铝板面背向动力电池组电极；所述铜铝复合板上设有与单体电池外形相互配合的孔；所述铜板面与动力电池组正极之间设有绝缘垫片；所述每一排的单体电池电极之间通过一根连续的保险丝焊接并联，所述单体电池电极和保险丝之间通过超声波焊接；所述铝板面和保险丝之间通过超声波焊接。The positive and negative electrodes of the power battery pack are respectively provided with a copper-aluminum composite plate, one side of the copper-aluminum composite plate is a copper plate surface, and the other side of the copper-aluminum composite plate is an aluminum plate surface; the copper plate faces the electrodes of the power battery pack, so The surface of the aluminum plate faces away from the electrodes of the power battery pack; the copper-aluminum composite plate is provided with a hole that matches the shape of the single battery; an insulating gasket is provided between the surface of the copper plate and the positive pole of the power battery pack; each of the The electrodes of the single cells in the row are welded in parallel through a continuous fuse, the electrodes of the single cells and the fuse are connected by ultrasonic welding, and the aluminum plate surface and the fuse are connected by ultrasonic welding.
进一步，所述每个单体电池电极通过两点焊接和保险丝固接，所述铝板面通过两点焊接和保险丝固接。Further, the electrodes of each single battery are fixed by two-point welding and a fuse, and the aluminum plate is fixed by two-point welding and a fuse.
进一步，所述保险丝是纯铝丝。Further, the fuse is pure aluminum wire.
进一步，所述超声波焊接点是涂有电接触导电膏或银浆的焊接点。Further, the ultrasonic welding point is a welding point coated with electrical contact conductive paste or silver paste.
进一步，所述铜板面厚度为0.1mm～0.3mm；所述铝板面厚度为1mm。Further, the thickness of the copper plate is 0.1 mm to 0.3 mm; the thickness of the aluminum plate is 1 mm.
采用上述技术方案后的有益效果：Beneficial effects after adopting the above-mentioned technical scheme:
根据电流密度的要求，合理运用铜铝复合板结构。铜板面厚度大约在0.1mm～0.3mm左右，用于导电、导热；铝板面一般都在1mm以上，易与纯铝丝超声波压焊焊接，同时起到导电、导热、散热的作用。According to the requirements of current density, the structure of copper-aluminum composite board is rationally used. The thickness of the copper plate is about 0.1mm~0.3mm, which is used for electric conduction and heat conduction; the aluminum plate is generally more than 1mm, which is easy to be welded with pure aluminum wire by ultrasonic pressure welding, and at the same time plays the role of conduction, heat conduction and heat dissipation.
同等重量的铜铝复合板长度或体积是纯铜排的2.5～2.7倍，有效降低电池组质量。当然，为了提高抗腐蚀性能，可在铜板面表面进行镀锡、镀锌处理。运用铜铝复合板，节省铜和镍资源，降低生产配套成本，绿色环保。The length or volume of the copper-aluminum composite board with the same weight is 2.5 to 2.7 times that of the pure copper bar, effectively reducing the quality of the battery pack. Of course, in order to improve the corrosion resistance, tinning and galvanizing can be performed on the surface of the copper plate. The use of copper-aluminum composite panels saves copper and nickel resources, reduces production supporting costs, and is environmentally friendly.
铜板面解决导电性能，能直接当做电极汇流板，同时靠近压紧单体电池的外壳，不但起到导热、散热的作用，而且起到电池组模块内所有并联电池温度均衡一致性。铝板面与超声波压焊机送出的保险丝进行超声波焊接，单体电池电极与超声波压焊机送出的保险丝进行超声波焊接，保险丝能起到电流连接的作用，提高电池组导电性能。The copper plate surface solves the electrical conductivity and can be directly used as an electrode bus plate. At the same time, it is close to the shell of the single battery, which not only plays the role of heat conduction and heat dissipation, but also achieves temperature balance and consistency of all parallel batteries in the battery pack module. The aluminum plate surface is ultrasonically welded with the fuse sent by the ultrasonic pressure welding machine, and the electrode of the single battery is ultrasonically welded with the fuse sent by the ultrasonic pressure welder. The fuse can play the role of current connection and improve the conductivity of the battery pack.
保险丝不但起到电池与铜铝复合板的导电作用，而且起到每一颗单体电池的保险丝作用。The fuse not only plays the role of conducting electricity between the battery and the copper-aluminum composite board, but also plays the role of a fuse for each single battery.
运用保险丝并联，超声波焊接。当修理或拆除电池模块时，拆除连接方便，即：剪断或拉掉保险丝。与现有铜镍复合片相比，铜镍复合片采用电阻点焊，连接非常牢固，修理或拆除非常困难。Using fuses in parallel, ultrasonic welding. When repairing or removing the battery module, it is convenient to remove the connection, ie: cut or pull the fuse. Compared with the existing copper-nickel composite sheet, the copper-nickel composite sheet adopts resistance spot welding, the connection is very firm, and it is very difficult to repair or dismantle.
运用特殊的两点超声波焊接方式，提高各单体电池并联的接触可靠性、稳定性。The special two-point ultrasonic welding method is used to improve the contact reliability and stability of the parallel connection of each single battery.
采用点胶机对每一个焊点进行点胶。用电接触导电胶、银浆等进行点胶，起到保护超声波焊接点不被氧化，更起到加强焊接点的导电性和焊接点的机械强度。Use a glue dispenser to dispense glue on each solder joint. Dispensing with electrical contact conductive glue, silver paste, etc. can protect the ultrasonic welding points from oxidation, and also enhance the electrical conductivity and mechanical strength of the welding points.
采用圆柱形单体电池，方便单体电池的排列组合，满足市场上大部分单体电池的尺寸要求，如18650、26650、26800、32650等规格的单体电池。Cylindrical single cells are used to facilitate the arrangement and combination of single cells and meet the size requirements of most single cells in the market, such as 18650, 26650, 26800, 32650 and other specifications of single cells.
从经济和社会角度出发，运用本实用新型所述动力电池组后，平均每辆车能节约5000元成本以上。以大客车为例，每辆可以节约2万元以上。按2016年中国汽车年产量50万辆计算，可以节约社会成本30～50亿。From an economic and social point of view, after using the power battery pack described in the utility model, the average cost of each vehicle can be saved by more than 5,000 yuan. Taking buses as an example, each vehicle can save more than 20,000 yuan. Based on the annual output of 500,000 automobiles in China in 2016, social costs of 3 to 5 billion can be saved.
附图说明Description of drawings
图1为本实用新型所述电池组主视结构示意图；Fig. 1 is a schematic diagram of the front view structure of the battery pack described in the utility model;
图2为图1的A向结构示意图；Fig. 2 is a schematic diagram of the structure in direction A of Fig. 1;
图3为图1的B向结构示意图；Fig. 3 is a schematic diagram of the structure in direction B of Fig. 1;
图4为图1的C向结构示意图；Fig. 4 is a schematic diagram of the structure in direction C of Fig. 1;
图5为图1的D向结构示意图；Fig. 5 is a schematic diagram of the structure in direction D of Fig. 1;
图6为图1的分解结构示意图；Fig. 6 is a schematic diagram of an exploded structure of Fig. 1;
图7为现有技术的电池组并联连接结构示意图。Fig. 7 is a schematic diagram of the parallel connection structure of battery packs in the prior art.
图中：1、单体电池，2、保险丝，3、汇流板，3a、正极汇流板，3b、负极汇流板，4、焊接点，5a、正极极耳，5b、负极极耳，6a、1#电极支架，6b、2#电极支架，7、电极连接板，8a、1#紧固件，8b、2#紧固件，8c、3#紧固件，9、绝缘垫片，10a、1#孔，10b、2#孔，11、保险丝导电膏涂层。In the figure: 1, single battery, 2, fuse, 3, manifold, 3a, positive manifold, 3b, negative manifold, 4, welding point, 5a, positive tab, 5b, negative tab, 6a, 1 #electrode bracket, 6b, 2# electrode bracket, 7, electrode connecting plate, 8a, 1# fastener, 8b, 2# fastener, 8c, 3# fastener, 9, insulating gasket, 10a, 1 # hole, 10b, 2# hole, 11, fuse conductive paste coating.
具体实施方式detailed description
下面结合附图和具体实施例，对本实用新型作进一步详细地说明。Below in conjunction with accompanying drawing and specific embodiment, the utility model is described in further detail.
实施例一Embodiment one
如图1～6所示，一种动力电池组的连接方法，上述动力电池组包括有若干单体电池1、汇流板3和电池支架，上述单体电池1正极部分通过1#电池支架6a固定，上述单体电池1负极部分通过2#电池支架6b固定。As shown in Figures 1 to 6, a connection method for a power battery pack, the above-mentioned power battery pack includes several single cells 1, a manifold 3 and a battery bracket, and the positive part of the above-mentioned single battery 1 is fixed by a 1# battery bracket 6a , the negative part of the above-mentioned single battery 1 is fixed by the 2# battery holder 6b.
如图1、6所示，上述汇流板3是铜铝复合板，铜铝复合板一面是铜板面，铜铝复合板另一面是铝板面。铜板面朝向动力电池组电极，所述铝板面背向动力电池组电极。如图1、4、5、6所示，具体说明：正极汇流板3a是铜铝复合板，正极汇流板3a的铜板面朝向动力电池组正极，正极汇流板3a的铝板面背向动力电池组正极；负极汇流板3b是铜铝复合板，负极汇流板3b的铜板面朝向动力电池组负极，负极汇流板3b的铝板面背向动力电池组负极。As shown in Figures 1 and 6, the above-mentioned manifold 3 is a copper-aluminum composite board, one side of the copper-aluminum composite board is a copper board, and the other side of the copper-aluminum composite board is an aluminum board. The face of the copper plate faces the electrode of the power battery pack, and the face of the aluminum plate faces away from the electrode of the power battery pack. As shown in Figures 1, 4, 5, and 6, specifically: the positive manifold 3a is a copper-aluminum composite plate, the copper plate of the positive manifold 3a faces the positive pole of the power battery pack, and the aluminum plate of the positive manifold 3a faces away from the power battery pack Positive pole; Negative electrode manifold 3b is a copper-aluminum composite plate, the copper plate of negative electrode manifold 3b faces the power battery pack negative pole, and the aluminum plate face of negative pole manifold 3b faces away from the power battery pack negative pole.
如图6所示，上述1#电池支架6a和2#电池支架6b上均设有与单体电池外形相互配合的孔，上述正极汇流板3a上设有与单体电池外形相互配合的孔10a，上述负极汇流板3b上设有与单体电池外形相互配合的孔10b，上述铜板面与动力电池组正极之间设有绝缘垫片9，上述绝缘垫片外径与电池外径一样大小，上述绝缘垫片内径与汇流板上孔一样大小。As shown in Figure 6, the above-mentioned 1# battery holder 6a and 2# battery holder 6b are provided with holes that match the shape of the single battery, and the above-mentioned positive electrode bus plate 3a is provided with a hole 10a that matches the shape of the single battery , the above-mentioned negative electrode bus plate 3b is provided with a hole 10b that matches the shape of the single battery, and an insulating gasket 9 is provided between the above-mentioned copper plate surface and the positive electrode of the power battery pack. The outer diameter of the above-mentioned insulating gasket is the same as the outer diameter of the battery. The inner diameter of the insulating spacer is the same size as the hole on the manifold.
如图1、2、6所示，上述正极汇流板3a设有正极极耳5a，上述负极汇流板3b设有负极极耳5b，上述正极极耳5a和负极极耳5b之间设有电极连接板7。As shown in Figures 1, 2, and 6, the above-mentioned positive electrode manifold 3a is provided with a positive pole tab 5a, and the above-mentioned negative pole manifold 3b is provided with a negative pole tab 5b, and an electrode connection is provided between the above-mentioned positive pole tab 5a and the negative pole tab 5b. plate 7.
如图1、6所示，上述正极汇流板3a通过1#紧固件8a与1#电池支架6a固接，上述负极汇流板3b通过2#紧固件8b与2#电池支架6b固接，上述正极极耳5a通过3#紧固件8c与电极连接板7一端固接，上述负极极耳5b通过3#紧固件8c与电极连接板7另一端固接。As shown in Figures 1 and 6, the positive manifold 3a is fixed to the 1# battery bracket 6a through the 1# fastener 8a, and the negative manifold 3b is fixed to the 2# battery bracket 6b through the 2# fastener 8b. The above-mentioned positive electrode tab 5a is fixedly connected to one end of the electrode connecting plate 7 through 3# fastener 8c, and the above-mentioned negative electrode tab 5b is fixedly connected to the other end of the electrode connecting plate 7 through 3# fastener 8c.
如图4、5所示，上述每一排的单体电池电极之间通过一根连续的保险丝2焊接并联，上述单体电池电极和保险丝2之间采用超声波焊接；上述铝板面和保险丝2之间采用超声波焊接。As shown in Figures 4 and 5, the electrodes of each row of the above-mentioned single batteries are welded in parallel through a continuous fuse 2, and ultrasonic welding is used between the electrodes of the above-mentioned single batteries and the fuse 2; between ultrasonic welding.
如此，若干单体电池电极、铜铝复合板3之间能通过一根保险丝2并联焊接，保险丝不但起到电池与铜铝复合板的导电作用，而且起到每一颗单体电池的保险丝作用。In this way, a fuse 2 can be welded in parallel between the electrodes of several single batteries and the copper-aluminum composite board 3. The fuse not only plays the role of conducting electricity between the battery and the copper-aluminum composite board, but also acts as a fuse for each single battery. .
铜板面解决导电性能，能直接当做电极汇流板，同时靠近压紧单体电池的外壳，不但起到导热、散热的作用，而且起到电池组模块内所有并联电池温度均衡一致性。铝板面与超声波压焊机送出的保险丝进行超声波焊接，单体电池电极与超声波压焊机送出的保险丝进行超声波焊接，保险丝能起到电流连接的作用，提高电池组导电性能。The copper plate surface solves the electrical conductivity and can be directly used as an electrode bus plate. At the same time, it is close to the shell of the single battery, which not only plays the role of heat conduction and heat dissipation, but also achieves temperature balance and consistency of all parallel batteries in the battery pack module. The aluminum plate surface is ultrasonically welded with the fuse sent by the ultrasonic pressure welding machine, and the electrode of the single battery is ultrasonically welded with the fuse sent by the ultrasonic pressure welder. The fuse can play the role of current connection and improve the conductivity of the battery pack.
上述紧固件能够但不限于螺钉。The aforementioned fasteners can be, but are not limited to, screws.
实施例二Embodiment two
如图1、3、4所示，作为所述动力电池组连接方法的一种改进，所述单体电池电极和保险丝2之间采用两点焊接，所述铝板面和保险丝2之间采用两点焊接，所述焊接步骤如下：As shown in Figures 1, 3, and 4, as an improvement to the connection method of the power battery pack, two-point welding is used between the electrodes of the single battery and the fuse 2, and two-point welding is used between the aluminum plate surface and the fuse 2. Spot welding, the welding steps are as follows:
a、在所述保险丝和铝板面之间焊接一个点；a. Weld a point between the fuse and the aluminum plate surface;
b、拉所述保险丝到电池电极，在保险丝和电池电极之间焊接一个点；b. Pull the fuse to the battery terminal and weld a point between the fuse and the battery terminal;
c、拉所述保险丝1mm～2mm，在保险丝和电池电极之间再焊接一个点；c. Pull the fuse by 1 mm to 2 mm, and weld another point between the fuse and the battery electrode;
d、拉所述保险丝至铝板面，在保险丝和铝板面之间焊接一个点；d. Pull the fuse to the aluminum plate and weld a point between the fuse and the aluminum plate;
e、拉所述保险丝1mm～2mm，在保险丝和铝板面之间再焊接一个点；e. Pull the fuse by 1mm to 2mm, and weld another point between the fuse and the aluminum plate surface;
f、重复步骤b、c、d、e，至位于同一排的单体电池全部焊接完成；f. Repeat steps b, c, d, and e until all the single cells in the same row are welded;
g、拉所述保险丝至铝板面，在保险丝和铝面板之间焊接一个点。g. Pull the fuse to the aluminum panel, and weld a point between the fuse and the aluminum panel.
如此，位于一排上的单体电池通过一根连续的保险丝并联成一体。运用两点超声波焊接方式，提高各单体电池并联的可靠性、稳定性，且修理或拆除电池模块方便。In this way, the single cells in a row are connected in parallel through a continuous fuse. The two-point ultrasonic welding method is used to improve the reliability and stability of the parallel connection of each single battery, and it is convenient to repair or remove the battery module.
另，发明人经过实践检验发现：上述保险丝2采用纯铝丝时，效果最佳。In addition, the inventor found through practice tests that: when the above-mentioned fuse 2 is made of pure aluminum wire, the effect is the best.
上述单体电池能够选用任意外形的单体电池，如矩形。实践中优选圆柱状单体电池，其适用范围最广。当选用圆柱状单体电池时，铜铝复合板上的孔和电极支架上的孔均为圆孔。The above-mentioned single battery can be a single battery with any shape, such as a rectangle. In practice, cylindrical single cells are preferred, as they have the widest range of applications. When a cylindrical single battery is selected, the holes on the copper-aluminum composite plate and the holes on the electrode holder are all round holes.
为提高焊接点4的可靠性、稳定性，所述超声波焊接点处优选采用保险丝导电膏涂层11，保险丝导电膏涂层11能够是电接触导电膏或银浆，其使用方式是点胶。电接触导电膏能够但不限于DDG-A高效电接触导电膏。In order to improve the reliability and stability of the welding point 4, the ultrasonic welding point preferably adopts a fuse conductive paste coating 11. The fuse conductive paste coating 11 can be an electrical contact conductive paste or silver paste, and its use is dispensing. The electrical contact conductive paste is capable of, but not limited to, DDG-A high-efficiency electrical contact conductive paste.
实施例三Embodiment Three
动力电池组，其包括有若干单体电池1、汇流板3和电池支架，上述单体电池1正极部分通过1#电池支架6a固定，上述单体电池1负极部分通过2#电池支架6b固定。The power battery pack includes several single cells 1, manifold 3 and battery holders, the positive part of the above-mentioned single cells 1 is fixed by the 1# battery holder 6a, and the negative part of the above-mentioned single cells 1 is fixed by the 2# battery holder 6b.
如图1、6所示，上述汇流板3是铜铝复合板，铜铝复合板一面是铜板面，铜铝复合板另一面是铝板面。铜板面朝向动力电池组电极，所述铝板面背向动力电池组电极。如图1、4、5、6所示，具体说明：正极汇流板3a是铜铝复合板，正极汇流板3a的铜板面朝向动力电池组正极，正极汇流板3a的铝板面背向动力电池组正极；负极汇流板3b是铜铝复合板，负极汇流板3b的铜板面朝向动力电池组负极，负极汇流板3b的铝板面背向动力电池组负极。As shown in Figures 1 and 6, the above-mentioned manifold 3 is a copper-aluminum composite board, one side of the copper-aluminum composite board is a copper board, and the other side of the copper-aluminum composite board is an aluminum board. The face of the copper plate faces the electrode of the power battery pack, and the face of the aluminum plate faces away from the electrode of the power battery pack. As shown in Figures 1, 4, 5, and 6, specifically: the positive manifold 3a is a copper-aluminum composite plate, the copper plate of the positive manifold 3a faces the positive pole of the power battery pack, and the aluminum plate of the positive manifold 3a faces away from the power battery pack Positive pole; Negative electrode manifold 3b is a copper-aluminum composite plate, the copper plate of negative electrode manifold 3b faces the power battery pack negative pole, and the aluminum plate face of negative pole manifold 3b faces away from the power battery pack negative pole.
如图6所示，上述1#电池支架6a和2#电池支架6b上均设有与单体电池外形相互配合的孔，上述正极汇流板3a上设有与单体电池外形相互配合的孔10a，上述负极汇流板3b上设有与单体电池外形相互配合的孔10b，上述铜板面与动力电池组正极之间设有绝缘垫片9，上述绝缘垫片外径与电池外径一样大小，上述绝缘垫片内径与汇流板上孔一样大小。As shown in Figure 6, the above-mentioned 1# battery holder 6a and 2# battery holder 6b are provided with holes that match the shape of the single battery, and the above-mentioned positive electrode bus plate 3a is provided with a hole 10a that matches the shape of the single battery , the above-mentioned negative electrode bus plate 3b is provided with a hole 10b that matches the shape of the single battery, and an insulating gasket 9 is provided between the above-mentioned copper plate surface and the positive electrode of the power battery pack. The outer diameter of the above-mentioned insulating gasket is the same as the outer diameter of the battery. The inner diameter of the insulating spacer is the same size as the hole on the manifold.
如图1、2、6所示，上述正极汇流板3a设有正极极耳5a，上述负极汇流板3b设有负极极耳5b，上述正极极耳5a和负极极耳5b之间设有电极连接板7。As shown in Figures 1, 2, and 6, the above-mentioned positive electrode manifold 3a is provided with a positive pole tab 5a, and the above-mentioned negative pole manifold 3b is provided with a negative pole tab 5b, and an electrode connection is provided between the above-mentioned positive pole tab 5a and the negative pole tab 5b. plate 7.
如图1、6所示，上述正极汇流板3a通过1#紧固件8a与1#电池支架6a固接，上述负极汇流板3b通过2#紧固件8b与2#电池支架6b固接，上述正极极耳5a通过3#紧固件8c与电极连接板7一端固接，上述负极极耳5b通过3#紧固件8c与电极连接板7另一端固接。As shown in Figures 1 and 6, the positive manifold 3a is fixed to the 1# battery bracket 6a through the 1# fastener 8a, and the negative manifold 3b is fixed to the 2# battery bracket 6b through the 2# fastener 8b. The above-mentioned positive electrode tab 5a is fixedly connected to one end of the electrode connecting plate 7 through 3# fastener 8c, and the above-mentioned negative electrode tab 5b is fixedly connected to the other end of the electrode connecting plate 7 through 3# fastener 8c.
如图4、5所示，上述每一排的单体电池电极之间通过一根连续的保险丝2焊接并联，上述单体电池电极和保险丝2之间采用超声波焊接；上述铝板面和保险丝2之间采用超声波焊接。As shown in Figures 4 and 5, the electrodes of each row of the above-mentioned single batteries are welded in parallel through a continuous fuse 2, and ultrasonic welding is used between the electrodes of the above-mentioned single batteries and the fuse 2; between ultrasonic welding.
上述紧固件能够但不限于螺钉。The aforementioned fasteners can be, but are not limited to, screws.
实施例四Embodiment four
作为本实用新型所述动力电池组的一种改进，所述单体电池电极和保险丝2之间采用两点焊接，所述铝板面和保险丝2之间采用两点焊接。其焊接步骤与实施例二相同。As an improvement of the power battery pack described in the present utility model, two-point welding is adopted between the electrodes of the single battery and the fuse 2 , and two-point welding is adopted between the aluminum plate surface and the fuse 2 . Its welding steps are the same as in the second embodiment.
实施例五Embodiment five
作为本实用新型所述动力电池组的一种改进，所述铜板面厚度为0.1mm～0.3mm；所述铝板面厚度为1mm。另，所述保险丝2优选纯铝丝。As an improvement of the power battery pack described in the present invention, the thickness of the copper plate surface is 0.1 mm to 0.3 mm; the thickness of the aluminum plate surface is 1 mm. In addition, the fuse 2 is preferably pure aluminum wire.
本实用新型不限于上述实施例，凡采用等同替换或等效替换形成的技术方案均属于本实用新型要求保护的范围。The utility model is not limited to the above-mentioned embodiments, and all technical solutions formed by equivalent replacement or equivalent replacement all belong to the protection scope of the utility model.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106784571A (en) * | 2017-02-12 | 2017-05-31 | 苏州市博得立电源科技有限公司 | A kind of battery bag battery core welding procedure in parallel |
| CN107331826A (en) * | 2016-04-28 | 2017-11-07 | 周伟 | The connection method of power battery pack and the battery pack produced with this method |
| CN107492627A (en) * | 2017-08-14 | 2017-12-19 | 苏州市博得立电源科技有限公司 | Lithium ion battery module based on BONDING techniques |
| CN107732070A (en) * | 2017-10-13 | 2018-02-23 | 华霆（合肥）动力技术有限公司 | Battery modules and assemble method |
| CN111063855A (en) * | 2018-10-17 | 2020-04-24 | 欣旺达电动汽车电池有限公司 | Unilateral welding method for cylindrical battery cell |
-
2016
- 2016-04-28 CN CN201620373672.1U patent/CN205723727U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107331826A (en) * | 2016-04-28 | 2017-11-07 | 周伟 | The connection method of power battery pack and the battery pack produced with this method |
| CN106784571A (en) * | 2017-02-12 | 2017-05-31 | 苏州市博得立电源科技有限公司 | A kind of battery bag battery core welding procedure in parallel |
| CN107492627A (en) * | 2017-08-14 | 2017-12-19 | 苏州市博得立电源科技有限公司 | Lithium ion battery module based on BONDING techniques |
| CN107732070A (en) * | 2017-10-13 | 2018-02-23 | 华霆（合肥）动力技术有限公司 | Battery modules and assemble method |
| CN111063855A (en) * | 2018-10-17 | 2020-04-24 | 欣旺达电动汽车电池有限公司 | Unilateral welding method for cylindrical battery cell |
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