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Conductive connecting sheet with side composite metal structure and production method thereof

A technology of conductive connecting piece and composite metal, which is applied in the field of conductive connecting piece with side composite metal structure and its production, to reduce recycling costs, meet the requirements of high conductivity and transition welding parts, and improve the value of waste recycling

Active Publication Date: 2013-05-01
徐卓辉 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] In view of the above-mentioned defects in the existing conductive connector technology, the present invention provides a conductive connector with a side composite metal structure and its production method to solve the problem of reliability between different material parts of products in the fields of electronics, electrical appliances, batteries, etc. Transition connection problems, while saving scarce metals and increasing the value of scrap recycling

Method used

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  • Conductive connecting sheet with side composite metal structure and production method thereof
  • Conductive connecting sheet with side composite metal structure and production method thereof
  • Conductive connecting sheet with side composite metal structure and production method thereof

Examples

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Effect test

Embodiment 1

[0036] The original product is designed as a straight bar-shaped pure nickel conductive connection piece with a thickness of 0.4mm, a width of 4mm, a total length of 50mm, and a hardness of 1 / 4.

[0037] See figure 1 , with a nickel / copper / nickel side composite metal structure. This section of nickel conductive connecting piece has a copper strip conductor 2, and the two ends of the copper strip conductor 2 in the longitudinal direction are symmetrically and firmly bonded with nickel welding parts 1 and 3, the copper strip conductor 2 and the nickel A bonding surface 12 that is closely joined is formed between the welding parts 1, and another bonding surface 23 that is tightly joined between the copper strip conductor 2 and the nickel welding part 3 is formed. The cross section of the copper strip conductor 2, The cross-sections of the nickel welded portions 1 and 3 are both rectangular. Wherein, the material structure of the joint surfaces 12 and 23 is dense. The thickness...

Embodiment 2

[0045] The original design is a semi-hard pure copper conductive connection piece with a thickness of 0.4mm, a width of 4mm and a length of 50mm.

[0046] See Example 2 for the copper conductive connection piece figure 2 , with a copper / aluminum / copper side composite metal structure. The copper conductive connecting piece has an aluminum strip conductor 2, and copper welding parts 1 and 3 are symmetrically and firmly bonded to both ends of the aluminum strip conductor 2 in the longitudinal direction. The aluminum strip conductor 2 and the copper A joint surface 12 is formed between the welding parts 1 and the other joint surface 23 is formed between the aluminum strip conductor 2 and the copper welding part 3. The cross section and the cross section of the copper welding parts 1 and 3 are all rectangular. The thickness and width of the copper welding parts 1 and 3 are the same as the thickness and width of the aluminum strip conductor 2 .

[0047] Its preparation process i...

Embodiment 3

[0054] A pole lug (which can also be understood as a conductive connecting piece) used in an aluminum-shell lithium-ion battery is a straight bar-shaped element (0.15mm*3mm*40mm, thick *W*L) or aluminum / nickel lap joint type transfer sheet (the thickness of aluminum strip and nickel strip is 0.15mm, the width is 3mm, the length of aluminum strip is 36mm, the length of nickel strip is 10mm, and the overlapping length of the two materials is 6mm) ,

[0055] Embodiment 3 is a tab (or understood as a conductive connecting piece) using the aluminum-nickel side composite structure of the present invention, refer to image 3 . The tab has an aluminum strip conductor 2, and a nickel welding part 1 is firmly bonded to one end surface of the aluminum strip conductor 2 in the longitudinal direction. The aluminum strip conductor 2 and the nickel welding part 1 are formed between the aluminum strip conductor 2 A joint surface 12 that is closely joined, the cross-section of the aluminum s...

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Abstract

A conductive connecting sheet with a side composite metal structure comprises at least two foreign metal sheets. Each metal sheet comprises at least one copper metal sheet or nickel metal sheet, and the rest is a metal sheet at the price lower than the price of copper and nickel. Each metal sheet is arranged along the length direction of the conductive connecting sheet. The adjacent metal sheets are combined closely on an end face, and lap joint does not exist among the adjacent metal sheets. The production method comprises the following steps that: in the at least two metal strips, the adjacent metal strips are firmly combined on the adjacent side to form a side composite board strip by side composite technology; and the produced board strip is subjected to rolling and process annealing treatment to produce a final board strip with thickness the same as that of the conductive connecting sheet, and then is punched and formed along the transverse direction. The invention makes the bestof the advantages of combination of the side composite metal board strips, can ideally meet the requirement of the overall high-conductivity and the transition welding component, prevent the negativeeffect of the traditional lap joint and obviously save scarce metal and improve the waste recovery value.

Description

technical field [0001] The patent of the present invention relates to a conductive connecting piece with a side composite metal structure and a production method thereof. The conductive connecting piece is mainly used in the fields of electronics, electrical appliances, batteries, electric vehicles and the like. Background technique [0002] At present, a large number of conductive connectors are needed in the fields of electronics, electrical appliances, batteries, electric vehicles, etc. The materials of the mating components mainly include steel, nickel, aluminum, copper, stainless steel, etc. The materials of the conductive connectors themselves are all metals, especially Most of them are nickel and copper. Although copper has the characteristics of good electrical and thermal conductivity, good mechanical properties, and certain corrosion resistance, it often encounters difficulties in welding or when connecting with non-copper heterogeneous materials (such as steel, ni...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P13/00
Inventor 徐卓辉沈翠珊
Owner 徐卓辉
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