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A copper-aluminum composite pole and its processing technology

A copper-aluminum composite and processing technology, applied in structural parts, battery boxes/jackets, electrical components, etc., can solve the problems of reducing material cost and the effect of weight is not obvious, to reduce material cost, good performance, welding Good firmness

Active Publication Date: 2020-06-12
浙江波恩电源制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the disadvantages of the existing copper-aluminum composite pole that the effect of reducing material cost and weight is not obvious, and provide a copper-aluminum composite electrode that has a relatively obvious effect of reducing material cost and weight and ensures the connection performance of lithium batteries. Pole and its processing technology

Method used

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  • A copper-aluminum composite pole and its processing technology
  • A copper-aluminum composite pole and its processing technology
  • A copper-aluminum composite pole and its processing technology

Examples

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Embodiment 1

[0045] Embodiment 1. The present invention discloses a copper-aluminum composite pole, including a copper base 3 and a copper cylinder 2 integrally connected to the center of one side of the copper base 3, and the ends of the copper cylinder 2 are connected by friction welding There is an aluminum cylinder 1, a copper-aluminum welding line 5 is formed between the copper cylinder 2 and the aluminum cylinder 1, and the aluminum cylinder 1 is provided with an annular circlip groove 4 for clamping a circlip, and the circlip groove 4 is located on the copper Above the aluminum welding line 5 , the end of the aluminum column 1 is provided with an internally threaded connection hole 6 .

Embodiment 2

[0046] Embodiment 2, the present invention discloses a processing technology of a copper-aluminum composite pole, comprising the following steps:

[0047] S1: Prepare materials, prepare cylindrical aluminum and cylindrical copper, and the diameter of the cylindrical aluminum is larger than the diameter of the cylindrical copper.

[0048] S2: cutting material, cutting and blanking the cylindrical aluminum material and the cylindrical copper material respectively to obtain copper blanks and aluminum blanks, and pickling and degreasing the end faces of the copper blanks and aluminum blanks respectively, as welding in S3 When the welding surface.

[0049] S3: welding, such as Figure 7 As shown, the copper blank 2a and the aluminum blank 1a are friction welded with a friction welding machine, the copper blank 2a is clamped on a rotating fixture 8, and the rotating fixture 8 is driven by a rotating motor to drive the copper blank 2a at a high speed. Rotate, the aluminum blank 1a ...

Embodiment 3

[0057] Embodiment 3, the only difference between this embodiment and the above-mentioned embodiment 2 is that, S3: welding, the friction welding process is carried out on the copper blank and the aluminum blank by using a friction welding machine. will be like Figure 8 As shown, one end of the aluminum blank 1a is clamped in the clamping hole of a fixed fixture 10 fixedly installed on the workbench, so that the aluminum blank 1a is limited in both the circumferential direction and the axial direction, and the aluminum blank 1a has One end of the welding surface is overhanging, and the end of the copper blank 2a away from the welding surface is fixedly clamped in the clamping hole of a rotating fixture 8, and the end of the copper blank 2a having a welding surface and the aluminum blank 1a have a welding surface One end is relatively overhanging and the center line of the copper blank 2a is consistent with that of the aluminum blank 1a. A rotary motor drives the rotary fixture...

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Abstract

The invention discloses a copper-aluminum composite pole and its processing technology. The technical points of the copper-aluminum composite pole include a copper base, a copper cylinder integrally connected to the center of one side of the copper base, and an end of the copper cylinder. The aluminum cylinder is connected by friction welding, and the copper-aluminum welding line is formed between the copper cylinder and the aluminum cylinder. The aluminum cylinder is provided with a ring-shaped spring groove for clamping the spring, and the spring groove is located on the copper-aluminum welding line. Above, the end of the aluminum cylinder is provided with an internal thread connection hole. The technical point of the processing technology of copper-aluminum composite pole is to process the round copper and round aluminum through friction welding, and then sequentially process through turning, forging, re-turning and punching to form copper and aluminum with good structural strength. Composite pole. The copper and aluminum materials are fixed by friction welding through friction welding, and the copper-aluminum composite pole with low cost and good welding firmness is obtained, and the firmness of friction welding is detected by the pulling force detection device, which ensures the copper-aluminum composite pole. The firmness of the pole.

Description

technical field [0001] The invention belongs to the technical field of lithium batteries, and in particular relates to a copper-aluminum composite pole and a processing technology thereof. Background technique [0002] The pole is the connecting terminal in the lithium battery, which is a part that connects the inside and outside of the battery. One end of the pole is connected to the internal cell of the lithium battery, and the other end is connected to the external circuit of the lithium battery, so that the battery can realize the function of charging and discharging. At present, because the negative electrode current collector inside the battery cell is made of copper foil, the pole is often designed as a copper material. The specific structure is a cylindrical external connection end and a square plate integrally connected to one end of the external connection end. Shaped internal connection end, an internal threaded connection hole is provided on the other end surface...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M2/30B23P15/00H01M50/552H01M50/566
CPCB23P15/00H01M50/543Y02E60/10
Inventor 张兴良
Owner 浙江波恩电源制造有限公司