CN106450130A - Copper-nickel conducting plate and power battery box with copper-nickel conducting plate - Google Patents
Copper-nickel conducting plate and power battery box with copper-nickel conducting plate Download PDFInfo
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- CN106450130A CN106450130A CN201611025206.5A CN201611025206A CN106450130A CN 106450130 A CN106450130 A CN 106450130A CN 201611025206 A CN201611025206 A CN 201611025206A CN 106450130 A CN106450130 A CN 106450130A
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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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/531—Electrode connections inside a battery casing
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/02—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of metals or alloys
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/02—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of metals or alloys
- H01B1/026—Alloys based on copper
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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
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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
本发明涉及动力电池领域，尤其是涉及一种动力电池用铜镍导电片。该铜镍导电片包括由铜排和镍片组合在一起形成的基体，所述基体上开设有若干通孔，所述基体上形成有位于通孔内用于电连接的条状凸缘，所述条状凸缘由所述镍片延伸而成。本发明还涉及具有上述铜镍导电片的动力电池箱。本发明提供的铜镍导电片便于与电芯电连接，并在使用焊接等固定方式后不容易松动或脱落。本发明较佳地通过在条状凸缘端部设置凸点，更便于与电芯正负极的固定；本发明较佳地在基体上设置导电的导电柱、导电柱套、导电套、母插、塔簧等结构，便于模块之间、模组与模组之间、模组与高压模块或信号采集板之间的电连接。
The invention relates to the field of power batteries, in particular to a copper-nickel conductive sheet for a power battery. The copper-nickel conductive sheet includes a substrate formed by combining copper bars and nickel sheets, a plurality of through holes are opened on the substrate, and strip-shaped flanges for electrical connection in the through holes are formed on the substrate. The strip-shaped flange is formed by extending the nickel sheet. The present invention also relates to a power battery case having the above-mentioned copper-nickel conductive sheet. The copper-nickel conductive sheet provided by the invention is convenient to be electrically connected to the battery core, and is not easy to loosen or fall off after being fixed by welding or the like. In the present invention, it is more convenient to fix the positive and negative poles of the electric core by setting bumps at the end of the strip flange; Plug, tower spring and other structures are convenient for electrical connection between modules, between modules, between modules and high-voltage modules or signal acquisition boards.
Description
技术领域technical field
本发明涉及动力电池领域，尤其是涉及一种动力电池用铜镍导电片。The invention relates to the field of power batteries, in particular to a copper-nickel conductive sheet for a power battery.
背景技术Background technique
动力电池是电动汽车等设备的关键零部件，其一般由多个电芯组成的电池模组构成。电芯通过与导电条或导电片的电连接实现串联或并联。The power battery is a key component of electric vehicles and other equipment, and it is generally composed of a battery module composed of multiple cells. The cells are connected in series or in parallel by electrical connection with conductive strips or conductive sheets.
现有的导电结构，如螺栓连接等，存在连接不方便、连接不牢固、容易因颠簸引起松动脱落等技术问题，影响导电效果或会引起火花，亟待本领域技术员解决。Existing conductive structures, such as bolted connections, have technical problems such as inconvenient connection, weak connection, and easy loosening and falling off due to bumps, which affect the conductive effect or cause sparks, which urgently need to be solved by technicians in the art.
发明内容Contents of the invention
本发明的目的是提供一种铜镍导电片及具有其的动力电池箱，以解决电芯与导电结构连接不方便、连接不牢固等技术问题，便于电芯的模块化管理和使用。The purpose of the present invention is to provide a copper-nickel conductive sheet and a power battery box with it, so as to solve the technical problems such as inconvenient and weak connection between the battery cell and the conductive structure, and facilitate the modular management and use of the battery cell.
本发明首先提供了一种铜镍导电片，包括由铜排和镍片组合在一起形成的基体，所述基体上开设有若干通孔，所述基体上形成有位于通孔内用于电连接的条状凸缘，所述条状凸缘由所述镍片延伸而成。The present invention firstly provides a copper-nickel conductive sheet, which includes a substrate formed by combining copper bars and nickel sheets, and a plurality of through holes are opened on the substrate, and the substrate is formed on the substrate for electrical connection. The strip-shaped flange is formed by extending the nickel sheet.
优选地，所述条状凸缘的端部设有凸起的凸点。优选地，所述条状凸缘上开设有沿所述条状凸缘长度方向延伸的长条孔，每个所述条状凸缘的端部设有两个凸点且分别位于长条孔两侧。Preferably, the ends of the strip-shaped flanges are provided with raised bumps. Preferably, the strip-shaped flange is provided with a long hole extending along the length direction of the strip-shaped flange, and each end of the strip-shaped flange is provided with two protruding points and are respectively located in the long strip hole. sides.
优选地，所述长条孔具有直段，所述条状凸缘形成两段平行的直臂。Preferably, the elongated hole has a straight section, and the strip-shaped flange forms two parallel straight arms.
优选地，所述凸点被设置成位于通孔的中心位置，所述凸点的凸起高度为0.2-0.4mm，其直径为1-1.5mm。Preferably, the protruding point is arranged to be located at the center of the through hole, the protruding height of the protruding point is 0.2-0.4 mm, and the diameter of the protruding point is 1-1.5 mm.
优选地，所述条状凸缘与所述基体的连接处形成有圆弧槽。Preferably, arc grooves are formed at the connection between the strip flange and the base body.
优选地，所述基体上可设置有导电的导电柱、导电柱套、导电套、母插、塔簧中的至少一个。Preferably, at least one of a conductive post, a conductive post sleeve, a conductive sleeve, a female plug, and a tower spring may be provided on the base.
优选地，所述塔簧设置在由基体向外延伸并向垂直于基体的方向弯折的弯折片上。Preferably, the tower spring is arranged on a bending piece extending outward from the base body and bent in a direction perpendicular to the base body.
优选地，所述导电柱套和/或导电套包括导电套筒及其内的导电簧。Preferably, the conductive post sleeve and/or the conductive sleeve includes a conductive sleeve and a conductive spring inside.
本发明还提供一种车载动力电池箱，包括多个具有电芯的电池模块，所述电池模块具有上述任一种的铜镍导电片。The present invention also provides a vehicle-mounted power battery box, which includes a plurality of battery modules with battery cells, and the battery modules have any one of the above-mentioned copper-nickel conductive sheets.
本发明提供的铜镍导电片采用铜排和镍片组合而成的基体，在基体上多个对应于电芯位置的通孔处设置用于与电芯电连接的条状凸缘，便于与电芯电连接，并在使用焊接等固定方式后不容易松动或脱落。本发明较佳地通过在条状凸缘端部设置凸点，更便于与电芯正负极的固定；本发明较佳地在基体上设置导电的导电柱、导电柱套、导电套、母插、塔簧等结构，便于模块之间、模组与模组之间、模组与高压模块或信号采集板之间的电连接。The copper-nickel conductive sheet provided by the present invention adopts a substrate composed of copper bars and nickel sheets, and a plurality of through holes corresponding to the positions of the electric cores on the substrate are provided with strip-shaped flanges for electrical connection with the electric cores, which is convenient for connection with the electric cores. The battery cells are electrically connected, and it is not easy to loosen or fall off after using welding and other fixing methods. In the present invention, it is more convenient to fix the positive and negative poles of the electric core by setting bumps at the end of the strip flange; Plug, tower spring and other structures are convenient for electrical connection between modules, between modules, between modules and high-voltage modules or signal acquisition boards.
附图说明Description of drawings
图1是本发明铜镍导电片一个实施例的结构示意图。Fig. 1 is a schematic structural view of an embodiment of the copper-nickel conductive sheet of the present invention.
图2是图1中区域A的局部放大示意图。FIG. 2 is a partially enlarged schematic diagram of area A in FIG. 1 .
图3是本发明带有导电套的铜镍导电片一个实施例的结构示意图。Fig. 3 is a structural schematic view of an embodiment of the copper-nickel conductive sheet with a conductive sleeve according to the present invention.
图4是本发明带有母插的铜镍导电片一个实施例的结构示意图。Fig. 4 is a schematic structural view of an embodiment of the copper-nickel conductive sheet with a female plug of the present invention.
具体实施方式detailed description
下文将结合附图对本发明的实施例进行详细说明。需要说明的是，在不冲突的情况下，本发明中的实施例及实施例中的特征可以相互任意组合。Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined arbitrarily with each other.
本发明的实施例以车载动力电池箱为例，包括箱体和位于箱体内的电池模组，电池模组包括多个叠置的模块盒，模块盒中装有多个电芯(即电池单体)。模块盒包括上盖和下盖，上盖和下盖外侧分别卡扣连接铜镍导电片及绝缘板。模块盒的左右两侧各有两个槽，用于在成组时卡入卡条，槽内相应设置有与卡条相配合的伸出卡件。模块盒的顶边也各有两个槽用于在成组时卡入卡条，并在卡条上固定信号采集板。铜镍导电片预先固定有塔簧，折入顶边槽内，信号采集板随卡条卡入槽后与塔簧接触，实现电连接。The embodiment of the present invention takes the vehicle-mounted power battery box as an example, which includes a box body and a battery module located in the box. body). The module box includes an upper cover and a lower cover, and the outer sides of the upper cover and the lower cover are buckled and connected to the copper-nickel conductive sheet and the insulating plate respectively. There are two grooves on the left and right sides of the module box respectively, which are used for snapping in the clips when forming a group, and the protruding clips matched with the clips are correspondingly arranged in the grooves. There are also two slots on the top edge of the module box, which are used to snap into the card strips when they are grouped, and to fix the signal acquisition board on the card strips. The copper-nickel conductive sheet is pre-fixed with a tower spring, which is folded into the top edge groove, and the signal acquisition board is inserted into the groove with the card strip to contact the tower spring to realize electrical connection.
图1是本发明铜镍导电片一个实施例的结构示意图。如图所示，铜镍导电片包括基体1，所述基体1由铜排和镍片通过焊接，例如激光焊接组合而成。基体1上开设有多个通孔2(如图2所示)，所述通孔2与排列在模块盒中的电芯(未示出)一一对应。Fig. 1 is a schematic structural view of an embodiment of the copper-nickel conductive sheet of the present invention. As shown in the figure, the copper-nickel conductive sheet includes a base 1, and the base 1 is formed by welding, such as laser welding, a copper bar and a nickel sheet. A plurality of through holes 2 (as shown in FIG. 2 ) are opened on the base body 1 , and the through holes 2 are in one-to-one correspondence with the battery cells (not shown) arranged in the module box.
图2是图1中区域A的局部放大示意图，示出了一个通孔2的结构。所述基体1上形成有位于通孔内的条状凸缘3，条状凸缘3由镍片延伸而成，较佳地向通孔中心位置延伸，条状凸缘3在通孔2内对称布置，与所述基体1的连接处分别形成有圆弧槽。所述条状凸缘3用于通过焊接等方式与电芯的正负极形成电连接，每个条状凸缘3的端部都具有两个凸点4(如图2所示)，通孔中心位置的4个凸点4被设置成朝向电芯正负极表面凸起，成为焊接至电芯正负极的电连接点。FIG. 2 is a partially enlarged schematic diagram of area A in FIG. 1 , showing the structure of a through hole 2 . The substrate 1 is formed with a strip-shaped flange 3 located in the through hole. The strip-shaped flange 3 is formed by extending from a nickel sheet, preferably extending toward the center of the through-hole. The strip-shaped flange 3 is in the through-hole 2 Arranged symmetrically, arc grooves are respectively formed at the joints with the base body 1 . The strip flange 3 is used to form an electrical connection with the positive and negative poles of the cell by welding or the like, and the end of each strip flange 3 has two bumps 4 (as shown in FIG. 2 ). The four bumps 4 at the center of the hole are set to protrude toward the surface of the positive and negative poles of the battery cell, and become electrical connection points welded to the positive and negative poles of the battery core.
所述条状凸缘3上还可以开设有沿所述条状凸缘3的长度方向延伸的长条孔11，以减少条状凸缘的强度，使条状凸缘的端部凸点更容易被压紧贴合在电芯正负极表面；同时，如果出现电流过载，开有长条孔的条状凸缘更容易熔断，提高安全性；此外，由于开有长条孔，焊接电流被分散的面积小，更容易集中在4个凸点4上。The strip flange 3 can also be provided with a long hole 11 extending along the length direction of the strip flange 3, so as to reduce the strength of the strip flange and make the end bumps of the strip flange more compact. It is easy to be pressed tightly on the surface of the positive and negative poles of the battery; at the same time, if the current overload occurs, the strip-shaped flange with a long hole is easier to fuse, which improves safety; in addition, due to the long hole, the welding current The area to be dispersed is small, and it is easier to concentrate on the four bumps 4 .
其中，凸点可通过冲压而成，其凸起的高度较佳地为0.2-0.4mm，直径较佳地为1-1.5mm，以便于加工以及保证焊接后的电连接。长条孔可具有一个直段，以使条状凸缘形成两段平行的直臂，直臂两侧均为直线形状，以确保电流过载时直臂处更容易熔断。Wherein, the bumps can be formed by punching, and the height of the bumps is preferably 0.2-0.4 mm, and the diameter is preferably 1-1.5 mm, so as to facilitate processing and ensure electrical connection after welding. The elongated hole can have a straight section, so that the strip flange forms two parallel straight arms, and both sides of the straight arms are straight lines, so as to ensure that the straight arms are easier to fuse when the current is overloaded.
为了适应铜镍导电片之间的电连接或者与信号采集板的电连接，铜镍导电片可包括多种不同的形式，例如，有的铜排上装有导电套，和导电芯进行连接，完成模块之间的导电；有的铜排上装有导电柱，有的铜排上装有导电柱套，两者装于相邻模块实现模块之间的导电；有的铜排上装有母插，和线束头进行连接；有的铜排上预先固定有塔簧，实现与信号采集板的电连接。In order to adapt to the electrical connection between the copper-nickel conductive sheets or the electrical connection with the signal acquisition board, the copper-nickel conductive sheets can include many different forms, for example, some copper bars are equipped with conductive sleeves, and are connected to the conductive core to complete Conduction between modules; some copper bars are equipped with conductive columns, and some copper bars are equipped with conductive column sleeves, both of which are installed in adjacent modules to achieve electrical conduction between modules; some copper bars are equipped with female plugs, and wiring harnesses Connect with the head; some copper bars are pre-fixed with tower springs to realize the electrical connection with the signal acquisition board.
图3是本发明带有导电套的铜镍导电片一个实施例的结构示意图。其中，附图标记8表示塔簧，附图标记6表示导电套。Fig. 3 is a structural schematic view of an embodiment of the copper-nickel conductive sheet with a conductive sleeve according to the present invention. Wherein, reference numeral 8 represents a tower spring, and reference numeral 6 represents a conductive sleeve.
塔簧8安装在由基体1向外延伸并向垂直于基体1的方向弯折的弯折片7上。所述弯折片7折入模块盒的顶边槽内，与预置于信号采集板上的接触点，例如塔簧、导电圆片等接触，实现铜镍导电片与信号采集板的电连接，用于动力电池的温度信号、电压信号等的采集。The tower spring 8 is installed on the bending piece 7 extending outward from the base 1 and bent in a direction perpendicular to the base 1 . The bent sheet 7 is folded into the top edge groove of the module box, and contacts with the contact points preset on the signal acquisition board, such as tower springs, conductive discs, etc., to realize the electrical connection between the copper-nickel conductive sheet and the signal acquisition board , for the collection of temperature signals and voltage signals of power batteries.
导电套6安装在基体1向外延伸出的伸长片5上，包括导电套筒和内置于导电套筒中的导电簧，并通过导电芯实现与另一模块上的导电套的电连接，进而实现模块之间的导电。该导电簧可以是由导电线圈绕成的环形结构，有弹性，可以在颠簸时保持电连接。其中，该导电芯可以被设置在电池模块中某一个电芯的位置，其一端可以被设置成与导电套相连，另一端可以被设置成与一个单独的导电套相连，该单独的导电套另一端还与另一个电池模块上的导电芯相连，并通过另一个电池模块上的导电套实现两个模块之间的电连接。The conductive sleeve 6 is installed on the extension piece 5 extending outward from the base 1, including the conductive sleeve and the conductive spring built in the conductive sleeve, and realizes the electrical connection with the conductive sleeve on another module through the conductive core. Thus, conduction between modules is realized. The conductive spring can be an annular structure wound by a conductive coil, is elastic, and can maintain electrical connection during bumps. Wherein, the conductive core can be set at the position of a certain battery cell in the battery module, one end of which can be set to be connected to a conductive sleeve, and the other end can be set to be connected to a separate conductive sleeve, and the separate conductive sleeve can be connected to another One end is also connected to the conductive core on the other battery module, and the electrical connection between the two modules is realized through the conductive sleeve on the other battery module.
图4是本发明带有母插的铜镍导电片一个实施例的结构示意图。其中，附图标记8表示塔簧，附图标记9表示母插。Fig. 4 is a schematic structural view of an embodiment of the copper-nickel conductive sheet with a female plug of the present invention. Wherein, reference numeral 8 represents a tower spring, and reference numeral 9 represents a female plug.
塔簧8的相关结构与作用如上所述。母插9设于基体1的伸出片上，一个电池模组具有一对正负极的母插9。母插9用于插入线束头，实现两个电池模组之间的电连接，或电池模组与高压模块之间的电连接。所述线束头(未示出)，包括外壳、插头、插头座、压紧弹簧和导电簧，插入到母插9实现电连接。The relevant structure and effect of the tower spring 8 are as described above. The female plug 9 is arranged on the protruding piece of the base 1 , and a battery module has a pair of positive and negative female plugs 9 . The female plug 9 is used to insert the wire harness head to realize the electrical connection between two battery modules, or the electrical connection between the battery module and the high voltage module. The wire harness head (not shown), including a shell, a plug, a socket, a compression spring and a conductive spring, is inserted into the female plug 9 to realize electrical connection.
在另一个实施例中，一个电池模块的底面导电片上装有向下而设的导电柱，其相邻下方电池模块的顶面导电片上装有向下而设的导电柱套，两者套接实现模块之间的导电。其中，导电柱套内包括导电套筒及其内的导电簧。In another embodiment, a conductive column on the bottom surface of a battery module is equipped with a downwardly disposed conductive column, and the top conductive sheet of the adjacent lower battery module is equipped with a downwardly disposed conductive column sleeve, and the two are socketed. Conduct electricity between modules. Wherein, the conductive column sleeve includes a conductive sleeve and a conductive spring inside.
以上所述仅为本发明的优选实施例而已，并不用于限制本发明，对于本领域技术人员来说，本发明可以有各种更改和变化。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611025206.5A CN106450130A (en) | 2016-11-16 | 2016-11-16 | Copper-nickel conducting plate and power battery box with copper-nickel conducting plate |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106784509A (en) * | 2017-03-10 | 2017-05-31 | 江苏索尔新能源科技股份有限公司 | The battery component that a kind of battery core is longitudinally arranged |
| CN106784508A (en) * | 2017-03-10 | 2017-05-31 | 江苏索尔新能源科技股份有限公司 | A kind of battery component for new-energy automobile |
| CN107195842A (en) * | 2017-06-09 | 2017-09-22 | 深圳市朗能动力技术有限公司 | Battery pole ear and battery modules |
| CN109004167A (en) * | 2018-06-15 | 2018-12-14 | 宁德时代新能源科技股份有限公司 | Battery module |
| CN109920960A (en) * | 2019-02-28 | 2019-06-21 | 珠海格力精密模具有限公司 | Conductive bar and power battery |
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| CN109920960A (en) * | 2019-02-28 | 2019-06-21 | 珠海格力精密模具有限公司 | Conductive bar and power battery |
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