CN205944218U - Copper-aluminum conductive connection device for battery pack - Google Patents
Copper-aluminum conductive connection device for battery pack Download PDFInfo
- Publication number
- CN205944218U CN205944218U CN201620872390.6U CN201620872390U CN205944218U CN 205944218 U CN205944218 U CN 205944218U CN 201620872390 U CN201620872390 U CN 201620872390U CN 205944218 U CN205944218 U CN 205944218U
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- Prior art keywords
- connector
- copper
- battery pack
- nickel sheet
- aluminum
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- JRBRVDCKNXZZGH-UHFFFAOYSA-N alumane;copper Chemical compound [AlH3].[Cu] JRBRVDCKNXZZGH-UHFFFAOYSA-N 0.000 title description 8
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 68
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 42
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 42
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 34
- 238000003466 welding Methods 0.000 claims abstract description 34
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 25
- 239000010949 copper Substances 0.000 claims abstract description 25
- 229910052802 copper Inorganic materials 0.000 claims abstract description 25
- 238000009792 diffusion process Methods 0.000 claims abstract description 7
- 239000004411 aluminium Substances 0.000 claims abstract 15
- 238000005452 bending Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 abstract description 11
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
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- 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
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- Connection Of Batteries Or Terminals (AREA)
Abstract
Description
技术领域technical field
本实用新型属于电池模组技术领域，特别涉及一种电池组铜铝导电连接装置。The utility model belongs to the technical field of battery modules, in particular to a battery pack copper-aluminum conductive connection device.
背景技术Background technique
铜和铝因为都具有高的导电率而被应用动力电池，然而在串并联成电池组过程中，不可避免的遇到材质为铝基的极耳或者连接器与铜基材质的导电件连接，铜和铝直接通过紧固件连接后容易在导电过程中发生电化学反应，使铜铝界面处开始发生腐蚀，严重影响电池组的连接稳定性和使用安全性能。Copper and aluminum are used in power batteries because of their high conductivity. However, in the process of connecting batteries in series and parallel, it is inevitable to encounter aluminum-based tabs or connectors connected to copper-based conductive parts. After copper and aluminum are directly connected by fasteners, electrochemical reactions are likely to occur during the conductive process, causing corrosion at the copper-aluminum interface, which seriously affects the connection stability and safety performance of the battery pack.
目前，传统工艺采用铜表面镀镍的方式解决这个问题，这种方式在组装过程中存在一定的应用局限性，工艺成本高。At present, the traditional process uses nickel plating on the copper surface to solve this problem. This method has certain application limitations in the assembly process, and the process cost is high.
实用新型内容Utility model content
本实用新型的目的在于：针对现有技术的不足，而提供一种电池组铜铝导电连接装置，该装置通过采用局部分子扩散焊将镍片焊接在铝质连接器上，解决了组装电池组过程中表面既需要铝质又需要铜铝连接的问题。The purpose of the utility model is to provide a battery pack copper-aluminum conductive connection device for the deficiencies of the prior art. The device solves the problem of assembling the battery pack by welding the nickel sheet to the aluminum connector by local molecular diffusion welding. In the process, the surface needs both aluminum and copper-aluminum connection.
为实现上述目的，本实用新型采用如下技术方案：In order to achieve the above object, the utility model adopts the following technical solutions:
一种电池组铜铝导电连接装置，包括铝质连接器、镍片、铜质连接器和螺栓，所述铝质连接器具有局部焊接平面，所述镍片通过分子扩散焊接的方式焊接于所述局部焊接平面，所述镍片和所述局部焊接平面的形状相同、面积大小相等，所述铜质连接器通过所述螺栓锁紧于焊有镍片的铝质连接器上。A copper-aluminum conductive connection device for a battery pack, comprising an aluminum connector, a nickel sheet, a copper connector and bolts, the aluminum connector has a local welding plane, and the nickel sheet is welded to the The local welding plane, the nickel sheet and the local welding plane have the same shape and the same area, and the copper connector is locked to the aluminum connector welded with the nickel sheet through the bolt.
作为本实用新型的一种改进，所述镍片的厚度为0.05~0.3mm。As an improvement of the utility model, the thickness of the nickel sheet is 0.05-0.3 mm.
作为本实用新型的一种改进，所述镍片的厚度为0.1mm。As an improvement of the utility model, the thickness of the nickel sheet is 0.1mm.
作为本实用新型的一种改进，所述铝质连接器包括连接器本体及设置于所述连接器本体的通孔，所述连接器本体设置有放置导电铝丝的凹槽，所述凹槽与所述通孔连通；所述连接器本体的一侧垂直连接有折弯片。As an improvement of the utility model, the aluminum connector includes a connector body and a through hole provided on the connector body, the connector body is provided with a groove for placing conductive aluminum wire, and the groove It communicates with the through hole; a bending piece is vertically connected to one side of the connector body.
作为本实用新型的一种改进，所述局部焊接平面与所述折弯片连接，所述局部焊接平面设置有固定孔。As an improvement of the utility model, the local welding plane is connected to the bending piece, and the local welding plane is provided with fixing holes.
作为本实用新型的一种改进，所述局部焊接平面和所述连接器本体形成有一空槽。As an improvement of the present invention, a hollow groove is formed between the local welding plane and the connector body.
作为本实用新型的一种改进，所述连接器本体连接有电压采集片，所述电压采集片设置有采集孔。As an improvement of the utility model, the connector body is connected with a voltage collection piece, and the voltage collection piece is provided with a collection hole.
本实用新型的有益效果在于：本实用新型包括铝质连接器、镍片、铜质连接器和螺栓，所述铝质连接器具有局部焊接平面，所述镍片通过分子扩散焊接的方式焊接于所述局部焊接平面，所述镍片和所述局部焊接平面的形状相同、面积大小相等，所述铜质连接器通过所述螺栓锁紧于焊有镍片的铝质连接器上。本实用新型采用局部分子扩散焊将镍片焊接在铝质连接器上，解决了组装电池组过程中表面既需要铝质又需要铜铝连接的问题。另外，通过局部焊接镍片，大大降低了生产成本。The beneficial effect of the utility model is that the utility model includes an aluminum connector, a nickel sheet, a copper connector and a bolt, the aluminum connector has a local welding plane, and the nickel sheet is welded to the The local welding plane, the nickel sheet and the local welding plane have the same shape and the same area, and the copper connector is locked to the aluminum connector welded with the nickel sheet through the bolt. The utility model adopts local molecular diffusion welding to weld the nickel sheet on the aluminum connector, which solves the problem that the surface needs both aluminum and copper-aluminum connection in the process of assembling the battery pack. In addition, the production cost is greatly reduced by locally welding the nickel sheet.
附图说明Description of drawings
图1为本实用新型的结构示意图。Fig. 1 is the structural representation of the utility model.
图2为本实用新型的分解示意图。Fig. 2 is an exploded schematic diagram of the utility model.
具体实施方式detailed description
下面结合具体实施方式和说明书附图，对本实用新型作进一步详细的描述，但本实用新型的实施方式不限于此。The utility model will be further described in detail below in conjunction with the specific implementation and the accompanying drawings, but the implementation of the utility model is not limited thereto.
如图1~2所示，一种电池组铜铝导电连接装置，包括铝质连接器1、镍片2、铜质连接器3和螺栓4，铝质连接器1具有局部焊接平面14，镍片2通过分子扩散焊接的方式焊接于局部焊接平面14，镍片2和局部焊接平面14的形状相同、面积大小相等，局部焊接平面14和镍片2的形状和面积大小可以根据需要而设定，铜质连接器3通过螺栓4锁紧于焊有镍片2的铝质连接器1上。由于在铝质连接器1和铜质连接器3之间隔有一层镍片2，这样避免了铜铝直接连接产生的电池效应，发生化学腐蚀的风险。As shown in Figures 1 and 2, a copper-aluminum conductive connection device for a battery pack includes an aluminum connector 1, a nickel sheet 2, a copper connector 3 and a bolt 4, the aluminum connector 1 has a local welding plane 14, and the nickel The sheet 2 is welded to the local welding plane 14 by means of molecular diffusion welding. The shape and area of the nickel sheet 2 and the local welding plane 14 are the same, and the shape and area of the local welding plane 14 and the nickel sheet 2 can be set as required , the copper connector 3 is locked on the aluminum connector 1 welded with the nickel sheet 2 through the bolt 4 . Since there is a layer of nickel sheet 2 between the aluminum connector 1 and the copper connector 3, the battery effect caused by the direct connection of copper and aluminum is avoided, and the risk of chemical corrosion occurs.
一般地，镍片2的厚度为0.05~0.3mm，在这个厚度范围内有利于分子扩散焊接，超过这个范围的话，不利于节约成本。本实施方式镍片2的厚度为0.1mm。Generally, the thickness of the nickel sheet 2 is 0.05-0.3mm, within this thickness range is conducive to molecular diffusion welding, and if it exceeds this range, it is not conducive to cost saving. The thickness of the nickel sheet 2 in this embodiment is 0.1 mm.
优选地，铝质连接器1包括连接器本体11及设置于连接器本体11的通孔12，连接器本体11设置有放置导电铝丝的凹槽13，凹槽13与通孔12连通，由于可以铝丝在电池组短路过程中起到保险丝的作用，从而提高了电池组的安全性能。Preferably, the aluminum connector 1 includes a connector body 11 and a through hole 12 disposed on the connector body 11, the connector body 11 is provided with a groove 13 for placing conductive aluminum wire, and the groove 13 communicates with the through hole 12, because The aluminum wire can act as a fuse in the short-circuit process of the battery pack, thereby improving the safety performance of the battery pack.
优选地，连接器本体11的一侧垂直连接有折弯片111，局部焊接平面14与折弯片111连接，局部焊接平面14设置有固定孔141，固定孔141用于对外的导电连接进行固定。局部焊接平面14和连接器本体11形成有一空槽15，空槽15用于减少每个电池充放电电压差。Preferably, one side of the connector body 11 is vertically connected with a bending piece 111, and the local welding plane 14 is connected with the bending piece 111, and the local welding plane 14 is provided with a fixing hole 141, and the fixing hole 141 is used for fixing the external conductive connection . The local welding plane 14 and the connector body 11 form an empty slot 15, and the empty slot 15 is used to reduce the charge-discharge voltage difference of each battery.
优选地，连接器本体11连接有电压采集片112，电压采集片112设置有采集孔1121，采集孔1121用于将电压采集线和电压采集片112的锁紧固定。Preferably, the connector body 11 is connected with a voltage collection piece 112 , and the voltage collection piece 112 is provided with a collection hole 1121 , and the collection hole 1121 is used for locking and fixing the voltage collection line and the voltage collection piece 112 .
根据上述说明书的揭示和教导，本实用新型所属领域的技术人员还能够对上述实施方式进行变更和修改。因此，本实用新型并不局限于上述的具体实施方式，凡是本领域技术人员在本实用新型的基础上所作出的任何显而易见的改进、替换或变型均属于本实用新型的保护范围。此外，尽管本说明书中使用了一些特定的术语，但这些术语只是为了方便说明，并不对本实用新型构成任何限制。According to the disclosure and teaching of the above specification, those skilled in the art to which the present utility model belongs can also change and modify the above embodiment. Therefore, the utility model is not limited to the above specific implementation manners, and any obvious improvement, replacement or modification made by those skilled in the art on the basis of the utility model shall belong to the protection scope of the utility model. In addition, although some specific terms are used in this specification, these terms are only for convenience of description and do not constitute any limitation to the present utility model.
Claims (7)
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620872390.6U CN205944218U (en) | 2016-08-12 | 2016-08-12 | Copper-aluminum conductive connection device for battery pack |
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| CN201620872390.6U CN205944218U (en) | 2016-08-12 | 2016-08-12 | Copper-aluminum conductive connection device for battery pack |
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| CN205944218U true CN205944218U (en) | 2017-02-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106159175A (en) * | 2016-08-12 | 2016-11-23 | 东莞力朗电池科技有限公司 | A kind of battery pack copper aluminium conductive connecting device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106159175A (en) * | 2016-08-12 | 2016-11-23 | 东莞力朗电池科技有限公司 | A kind of battery pack copper aluminium conductive connecting device |
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