Welding positioning device between lithium ion battery tab or circuit board and wire

Abstract

A welding positioning device between a lithium ion battery tab or a circuit board and a wire comprises a stainless steel plate, an upper fixing clamp, a lower fixing clamp and a stainless steel fixing strip, the upper fixing clamp and the lower fixing clamp are fixed to the upper end and the lower end of the stainless steel plate respectively, and an arc-shaped groove is formed in the middle of the upper fixing clamp and the middle of the lower fixing clamp. The fixing pin is movably connected with one end of the stainless steel fixing strip, and the other end of the stainless steel fixing strip is fixed to the buckle. The utility model has the advantages of simple processing, easy fixation, convenient adjustment, and accurate and flexible positioning. The tab or the circuit board and one end of the wire are fixed, the other end of the tab or the wire is also fixed, the other end of the wire can be quickly positioned only by pressing the other end of the wire through a welding tool electric soldering iron, then the electric soldering iron is heated, soldering tin is used for welding, and welding is quick and efficient.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium ion batteries, in particular to a welding positioning device between a lithium ion battery pole ear or a circuit board and a conducting wire. Background Art

[0002] Lithium-ion batteries have the advantages of high energy density, high operating voltage, and long cycle life, and are widely used in various fields of our lives. For enterprises, universities, research institutes, and other small lithium battery material evaluation or research, they will often come into contact with the application of battery materials in the study of the electrical properties of some small power tools, and will also face the welding process of a small number of battery packs. For the welding between the battery and the tab, the pole piece and the tab, and the cap and the tab, there are mature ultrasonic spot welding machines to complete it. However, welding devices for the tabs or circuit boards and the positive and negative wires are rare, and are generally operated by manual positioning. Since solder and welding tools are required for welding the wire or circuit board to the tab, and the tab and the wire to be welded must be held in both hands, it is difficult to accurately and efficiently position and complete the welding process if there is no positioning device. Because the tabs or circuit boards and wires are light, they are easy to deviate with a slight touch, resulting in slow welding positioning and loose welding, resulting in low welding efficiency and quality. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a welding positioning device between a lithium-ion battery pole ear or a circuit board and a wire, which comprises a stainless steel plate, an upper fixing clamp, a lower fixing clamp and a stainless steel fixing strip, wherein the upper and lower ends of the stainless steel plate are respectively fixed with the upper fixing clamp and the lower fixing clamp, an arc-shaped groove is arranged between the upper fixing clamp and the lower fixing clamp, a fixing pin is arranged at the lower edge on the left side of the arc-shaped groove, and a buckle is arranged at the lower edge on the right side, the fixing pin is movably connected to one end of the stainless steel fixing strip, and the other end of the stainless steel fixing strip is fixed to the buckle.

[0004] Compared with the prior art, the utility model has the following advantages: the utility model is simple to process, easy to fix, and convenient to adjust, and can achieve accurate and flexible positioning. By fixing the position of the pole ear or circuit board and one end of the wire, the other end of the pole ear or wire is also fixed, and the other end of the wire can be quickly positioned by pressing the other end of the wire with a welding tool, an electric soldering iron, and then heating the electric soldering iron to solder with solder, so that welding is fast and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0005] The specific implementation modes of the present utility model are further described in detail below in conjunction with the accompanying drawings.

[0006] Figure 1 It is a structural schematic diagram of the utility model.

[0007] Figure 2It is a schematic diagram of the arc-shaped groove of the utility model.

[0008] Figure 3 This is a partial structural diagram of the utility model.

[0009] In the figure: 1 - stainless steel plate 2 - upper fixing fixture 3 - lower fixing fixture 4 - arc groove 5 - stainless steel fixing strip 6 - buckle 7 - fixing pin. DETAILED DESCRIPTION

[0010] like Figure 1 , Figure 2 and Figure 3 A welding positioning device between a lithium-ion battery tab or a circuit board and a wire comprises a stainless steel plate 1, an upper fixing fixture 2, a lower fixing fixture 3 and a stainless steel fixing strip 5. The upper and lower ends of the stainless steel plate 1 are respectively fixed with the upper fixing fixture 2 and the lower fixing fixture 3. An arc groove 4 is arranged between the upper fixing fixture 2 and the lower fixing fixture 3. A fixing pin 7 is arranged at the lower edge of the left side of the arc groove 4, and a buckle 6 is arranged at the lower edge of the right side. The fixing pin 7 is movably connected to one end of the stainless steel fixing strip 5, and the other end of the stainless steel fixing strip 5 is fixed to the buckle 6.

[0011] Embodiment 1: Welding and positioning between the electrode tab and the wire.

[0012] During the welding operation, first fix one end of the pole ear to be welded with the lower fixing clamp 3, press the other end with the stainless steel fixing strip 5, and then fix the buckle 6, so that the pole ear end to be welded is exposed in the arc groove 4; then fix one end of the wire to be welded with the upper fixing clamp 2, and the other end naturally extends into the arc groove 4. Adjust the end of the wire to be welded so that it just falls in the middle position of the end of the pole ear to be welded. At this time, after the welding tool is connected to electricity and heated to a certain degree, quickly and accurately align the prepared solder with the heated welding tool tip, so that the solder melts and just drips to the connection between the wire and the pole ear, so that the solder smoothly wraps the copper wire of the wire and has a surplus melted on the pole ear, and ensure that the wire and the pole ear are firmly welded. Then loosen the upper fixing clamp 2 and the lower fixing clamp 3, and then fix the next set of pole ears and wires respectively, and repeat the welding steps to continue welding.

[0013] Embodiment 2: Welding positioning between a circuit board and a conductor.

[0014] During the welding operation, first fix one end of the circuit board to be welded with the lower fixing fixture 3, place the copper wire at one end of the wire to be welded to the welding point on the circuit board, press the other end with the stainless steel fixing strip 5 and then buckle the buckle 6 to fix it; then connect the welding tool electric soldering iron to heat it to a certain degree, quickly and accurately align the prepared solder with the heated electric soldering iron tip, so that the solder melts and just drips onto the exposed copper wire of the wire at the welding point on the circuit board, so that the solder smoothly wraps the copper wire of the wire and has a surplus melted on the circuit board, and ensure that the wire and the circuit board are firmly welded. Then release the fixture, take out the circuit board, and fix the next set of circuit boards and wires respectively, and repeat the welding steps to continue welding.

[0015] The above are preferred implementation modes of the present invention. Technicians in the field to which the present invention belongs can also change and modify the above implementation modes. Therefore, the present invention is not limited to the above specific implementation modes. Any obvious improvements, substitutions or modifications made by technicians in this field on the basis of the present invention belong to the protection scope of the present invention.

Claims

1. A welding positioning device between a lithium-ion battery tab or a circuit board and a wire, characterized in that: The invention comprises a stainless steel plate (1), an upper fixing clamp (2), a lower fixing clamp (3) and a stainless steel fixing strip (5); the upper and lower ends of the stainless steel plate (1) are respectively fixed with the upper fixing clamp (2) and the lower fixing clamp (3); an arc-shaped groove (4) is provided between the upper fixing clamp (2) and the lower fixing clamp (3); a fixing pin (7) is provided at the lower edge on the left side of the arc-shaped groove (4); a buckle (6) is provided at the lower edge on the right side; the fixing pin (7) is movably connected to one end of the stainless steel fixing strip (5); and the other end of the stainless steel fixing strip (5) is fixed to the buckle (6).

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