Anti-pulling silver-containing tinned copper strip

Abstract

The utility model provides an anti-pulling silver-containing tinned copper strip. The anti-pulling silver-containing tin-plated copper strip comprises a lower tin-plated layer and an upper tin-plated layer, the lower copper strip is arranged at the top of the lower tin plating layer, a connecting groove is formed in the top of the lower copper strip, a plurality of stress grooves are formed in the front face and the back face of the inner wall of the connecting groove, insulating layers are arranged on the inner walls of the connecting groove and the stress grooves, a connecting strip is arranged in the connecting groove, and the insulating layers are arranged in the connecting strip. A plurality of stress belts are fixedly connected to the front surface and the back surface of the connecting belt; and the upper copper strip is arranged at the top of the lower copper strip, and an upper tin coating is arranged at the top of the upper copper strip. According to the anti-pulling silver-containing tinned copper strip provided by the utility model, the stress strip and the connecting strip can be distributed in a cross shape through the design, and the stress strip is clamped into the stress groove, so that the anti-pulling force of the copper strip can be increased through transverse support, and the probability of deformation or damage of a copper sheet caused by pulling is reduced.

Description

Technical Field

[0001] The utility model relates to the technology and field of silver-tinned copper strips, and in particular to a tensile-resistant silver-containing tinned copper strip. Background Art

[0002] Copper strip is a metal component. The product specifications include 0.1~3×50~250mm copper strip products in various states. It is mainly used in the production of electrical components, lamp holders, battery caps, buttons, seals, connectors, and is mainly used as conductive, heat-conductive, and corrosion-resistant equipment.

[0003] Copper tin plating and silver plating can be used for chemical tin plating on the surface of copper, brass, beryllium copper and copper alloys. The tin plating is bright silver-white, which can increase the weldability and decorativeness of copper, does not affect the conductivity, and can prevent corrosion and improve conductivity.

[0004] However, the hardness of copper itself is relatively low, and the thickness of the copper strip itself is also relatively thin. If it is subjected to force and pulled, it is easy to cause the silver-tinned copper strip to deform or be damaged, affecting its normal use.

[0005] Therefore, it is necessary to provide a tensile-resistant silver-containing tin-plated copper strip to solve the above technical problems. Utility Model Content

[0006] The utility model provides a pulling-resistant silver-containing tin-plated copper strip, which solves the problem that the silver-plated tin-plated copper strip has a low hardness and is easily deformed or damaged during the pulling process due to the thickness of the copper sheet, thus affecting normal use. The utility model comprises: a lower tin-plated layer;

[0007] A lower copper belt, the lower copper belt is arranged on the top of the lower tin-plated layer, a connecting groove is opened on the top of the lower copper belt, a plurality of stress-bearing grooves are opened on the front and back sides of the inner wall of the connecting groove, an insulating layer is arranged on the inner walls of the connecting groove and the stress-bearing groove, a connecting belt is arranged inside the connecting groove, and a plurality of stress-bearing belts are fixedly connected on the front and back sides of the connecting belt;

[0008] An upper copper belt is arranged on the top of the lower copper belt, and an upper tin-plated layer is arranged on the top of the upper copper belt.

[0009] The stress belt is located inside the stress groove, the connecting belt is located inside the connecting groove, the upper copper belt and the lower copper belt are seamlessly connected together, the shape and distribution of the connecting groove and the stress groove can refer to Figure 2 , Figure 3 , Figure 4 The lower tin-plated layer and the upper tin-plated layer are plated on the outer surfaces of the lower copper strip and the upper copper strip, and the bottom of the upper copper strip is also provided with a connecting groove and a stress-bearing groove.

[0010] Preferably, the stress-bearing grooves and the connecting grooves are distributed in a cross shape, and the stress-bearing belts and the connecting belts are also distributed in a cross shape.

[0011] Preferably, the insulating layer may be made of high molecular polymer, aluminum oxide or silicon nitride material.

[0012] The insulating layer mainly separates the copper strip, the stress-bearing strip and the connecting strip.

[0013] Preferably, the stress-bearing belt and the connecting belt may be titanium alloy or martensitic stainless steel.

[0014] Preferably, the front and back sides of the lower copper strip and the upper copper strip are both provided with a side tin-plated layer.

[0015] Preferably, heat dissipation holes are provided on both sides of the upper copper belt and the lower copper belt.

[0016] The heat dissipation holes run through both sides of the upper copper tape and the lower copper tape.

[0017] Compared with the related art, the anti-pull silver-containing tin-plated copper strip provided by the utility model has the following beneficial effects:

[0018] The utility model provides a tensile-resistant silver-containing tin-plated copper belt. In order to increase the tensile resistance of the silver-containing tin-plated copper belt, a connecting groove is provided on the top of a lower copper belt, and a plurality of stress grooves are provided on both sides of an inner wall of the connecting groove, and a connecting belt with a stress belt is inserted into the interior of the lower copper belt, and the stress belt is located in the stress groove, and the connecting belt is located in the interior of the connecting groove, and then the upper copper belt and the lower copper belt are butt-jointed, and an upper tin-plated layer is installed on the upper copper belt. Through this design, the stress belt and the connecting belt can be distributed in a cross shape, and the stress belt is inserted into the interior of the stress groove, and the tensile resistance of the copper belt can be increased through lateral support, and the probability of deformation or damage of the copper sheet due to pulling can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic structural diagram of a preferred embodiment of the anti-tear silver-containing tin-plated copper strip provided by the utility model;

[0020] Figure 2 A schematic diagram of the structure of the side tin-plated layer is provided for the utility model;

[0021] Figure 3 Provided for the utility model Figure 2 An enlarged view of point A is shown;

[0022] Figure 4 Provided for the utility model Figure 2 An enlarged view of point B is shown.

[0023] Numbers in the figure: 1, lower tin-plated layer, 2, lower copper strip, 3, heat dissipation hole, 4, side tin-plated layer, 5, upper copper strip, 6, upper tin-plated layer, 7, insulating layer, 8, stress groove, 9, connecting groove, 10, connecting strip, 11, stress strip. DETAILED DESCRIPTION

[0024] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0025] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 ,in, Figure 1 A schematic structural diagram of a preferred embodiment of the anti-tear silver-containing tin-plated copper strip provided by the utility model; Figure 2 A schematic diagram of the structure of the side tin-plated layer is provided for the utility model; Figure 3 Provided for the utility model Figure 2 An enlarged view of point A is shown; Figure 4 Provided for the utility model Figure 2 The enlarged view of point B is shown. The tensile-resistant silver-containing tinned copper strip comprises: a lower tinned layer 1;

[0026] A lower copper strip 2, the lower copper strip 2 is arranged on the top of the lower tin-plated layer 1, a connecting groove 9 is opened on the top of the lower copper strip 2, a plurality of stress-bearing grooves 8 are opened on the front and back of the inner wall of the connecting groove 9, an insulating layer 7 is arranged on the inner walls of the connecting groove 9 and the stress-bearing groove 8, a connecting strip 10 is arranged inside the connecting groove 9, and a plurality of stress-bearing strips 11 are fixedly connected to the front and back of the connecting strip 10;

[0027] The upper copper strip 5 is arranged on the top of the lower copper strip 2 , and an upper tin-plated layer 6 is arranged on the top of the upper copper strip 5 .

[0028] The stress belt 11 is located inside the stress groove 8, and the connecting belt 10 is located inside the connecting groove 9. The upper copper belt 5 and the lower copper belt 2 are seamlessly connected together. The shape and distribution of the connecting groove 9 and the stress groove 8 can refer to Figure 2 , Figure 3 , Figure 4 The lower tin-plated layer 1 and the upper tin-plated layer 6 are plated on the outer surfaces of the lower copper strip 2 and the upper copper strip 5. The bottom of the upper copper strip 5 is also provided with a connecting groove 9 and a stress groove 8, which correspond to the positions of the connecting groove 9 and the stress groove 8 at the top of the lower copper strip 2.

[0029] The stress-bearing grooves 8 and the connecting grooves 9 are cross-distributed, and the stress-bearing belts 11 and the connecting belts 10 are also cross-distributed.

[0030] The distribution and shape of the stress belt 11 and the connecting belt 10 can refer to Figure 2 .

[0031] The insulating layer 7 can be made of high molecular polymer, aluminum oxide, or silicon nitride.

[0032] The insulating layer 7 is mainly used to separate the copper belt and the stress-bearing belt 11 from the connecting belt 10 to prevent the three from contacting and being energized.

[0033] The stress-bearing belt 11 and the connecting belt 10 can be titanium alloy or martensitic stainless steel.

[0034] Both the stress-bearing belt 11 and the connecting belt 10 have the characteristics of flexibility and resistance to pulling.

[0035] The front and back sides of the lower copper strip 2 and the upper copper strip 5 are both provided with a side tin-plated layer 4 .

[0036] The side tin-plated layer 4 is also plated on the outer surfaces of the lower copper strip 2 and the upper copper strip 5 .

[0037] Heat dissipation holes 3 are provided on both sides of the upper copper belt 5 and the lower copper belt 2 .

[0038] The heat dissipation holes 3 penetrate through both sides of the upper copper belt 5 and the lower copper belt 2, and mainly play a role in heat dissipation.

[0039] The working principle of the anti-pull silver-containing tin-plated copper strip provided by the utility model is as follows:

[0040] A connecting groove 9 is opened on the top of the lower copper strip 2, and a plurality of stress grooves 8 are opened on both sides of the inner wall of the connecting groove 9, and a connecting strip 10 with a stress belt 11 is inserted into the interior of the lower copper strip 2, and the stress belt 11 is located in the stress groove 8, and the connecting strip 10 is located inside the connecting groove 9, and then the upper copper strip 5 and the lower copper strip 2 are connected, and the upper tin-plated layer 6 is installed on the upper copper strip 5.

[0041] Compared with the related art, the anti-pull silver-containing tin-plated copper strip provided by the utility model has the following beneficial effects:

[0042] In order to increase the tensile strength of the silver-containing tin-plated copper strip, a connecting groove 9 is opened on the top of the lower copper strip 2, and a plurality of stress grooves 8 are opened on both sides of the inner wall of the connecting groove 9, and a connecting strip 10 with a stress belt 11 is inserted into the interior of the lower copper strip 2, and the stress belt 11 is located in the stress groove 8, and the connecting strip 10 is located inside the connecting groove 9. Then, the upper copper strip 5 and the lower copper strip 2 are connected, and the upper tin-plated layer 6 is installed on the upper copper strip 5. Through this design, the stress belt 11 and the connecting strip 10 can be distributed in a cross shape, and the stress belt 11 can be inserted into the interior of the stress groove 8. The tensile strength of the copper strip can be increased through lateral support, and the probability of deformation or damage of the copper sheet due to pulling can be reduced.

[0043] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A tensile-resistant silver-containing tinned copper strip, characterized in that: include: Lower tin plating layer; A lower copper belt, the lower copper belt is arranged on the top of the lower tin-plated layer, a connecting groove is opened on the top of the lower copper belt, a plurality of stress-bearing grooves are opened on the front and back sides of the inner wall of the connecting groove, an insulating layer is arranged on the inner walls of the connecting groove and the stress-bearing groove, a connecting belt is arranged inside the connecting groove, and a plurality of stress-bearing belts are fixedly connected on the front and back sides of the connecting belt; An upper copper belt is arranged on the top of the lower copper belt, and an upper tin-plated layer is arranged on the top of the upper copper belt.

2. The tear-resistant silver-containing tin-plated copper strip according to claim 1, characterized in that: The stress-bearing grooves and the connecting grooves are distributed in a cross shape, and the stress-bearing belts and the connecting belts are also distributed in a cross shape.

3. The tear-resistant silver-containing tin-plated copper strip according to claim 1, characterized in that: The insulating layer can be made of high molecular polymer, aluminum oxide or silicon nitride material.

4. The tear-resistant silver-containing tin-plated copper strip according to claim 1, characterized in that: The stress-bearing belt and the connecting belt can be titanium alloy or martensitic stainless steel.

5. The tear-resistant silver-containing tin-plated copper strip according to claim 1, characterized in that: The front and back sides of the lower copper strip and the upper copper strip are both provided with side tin-plated layers.

6. The tear-resistant silver-containing tin-plated copper strip according to claim 1, characterized in that: Heat dissipation holes are provided on both sides of the upper copper belt and the lower copper belt.

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