A copper busbar pinhole

Abstract

This utility model relates to the field of PIN pinhole structure technology, specifically a copper busbar PIN pinhole. The copper busbar PIN pinhole includes a copper busbar and copper pillars. PIN pinholes are provided on the copper busbar, and copper pillars are movably inserted within the PIN pinholes. A solder paste layer is provided between the copper pillars and the copper busbar. The copper pillars, from top to bottom, are an upper copper pillar, a pressing pillar, and a pressing guide pillar. A knurled layer surrounds the pressing pillars, and a material ejection groove is provided between the pressing pillars and the copper pillars. The process of creating holes in the copper busbar, designing knurling on the copper pillars, and using pressing and solder paste layers achieves product connection stability and bonding strength, meeting performance requirements.

Description

Technical Field

[0001] This utility model relates to the field of PIN pinhole structure technology, specifically a copper busbar PIN pinhole. Background Technology

[0002] In PCB (Printed Circuit Board) design, pins are a crucial method for connecting electronic components and circuits. They are typically connected via soldering or plugging. The appropriate pin type is selected based on different application requirements. With advancements in PCB manufacturing processes, the design and layout requirements for pins have become increasingly sophisticated, while simultaneously demanding higher standards of cost and efficiency. Traditional methods have inherent drawbacks or limitations: 1. Cost: Traditional pin designs often integrate the pin and copper busbar, which results in significant material waste, especially in early-stage samples or small-batch production. 2. In terms of flexibility: Traditional pin designs, due to their integrated design, are difficult to change or adjust later, and are not flexible enough; 3. Production efficiency: The integrated design leads to the scrapping of the entire product when a local problem occurs during production, affecting production efficiency and causing significant waste. 4. Compatibility issues: Compatibility issues between different pin standards may make it difficult to achieve interchangeability in some applications, increasing the complexity of the design.

[0003] Therefore, traditional integrated designs have low material utilization, lack flexibility in later adjustments, are difficult to interchange in some applications, and have low production efficiency. Therefore, there is an urgent need to design a copper busbar PIN pinhole to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a copper busbar PIN pinhole with high flexibility and high production efficiency.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a copper busbar PIN pinhole, comprising: a copper busbar and copper pillars, wherein the copper busbar is provided with a PIN pinhole, and a copper pillar is movably inserted into the PIN pinhole, and a solder paste layer is provided between the copper pillar and the copper busbar, wherein the copper pillar is, from top to bottom, an upper copper pillar, a pressing pillar, and a pressing guide pillar, and the pressing pillar has a knurled outer layer.

[0006] The knurled layer has a tooth pitch of 1 mm and a height of 0.1 mm.

[0007] A material ejection groove is provided between the press-fit column and the copper column.

[0008] The edge of the press-fit guide post is chamfered at 0.1°.

[0009] Compared with the prior art, the beneficial effects of this utility model are: By employing a process of drilling holes in the copper busbars and designing knurling on the copper pillars, and using press riveting and solder paste layers, the stability and bonding strength of the product connection are achieved, thus meeting performance requirements.

[0010] Copper busbars and copper columns can be manufactured and processed separately, which can effectively solve the problem of low material utilization. At the same time, it can also solve the problems of insufficient flexibility in later adjustments and low production efficiency, thereby improving material utilization, reducing material waste, and lowering costs. Attached Figure Description

[0011] Figure 1 This is a front view of the structure of this utility model; Figure 2 This is a cross-sectional view of the copper pillar in this utility model; Figure 3 This is a side view of the copper column in this utility model; Figure 4 This is a perspective view of the copper pillar in this utility model.

[0012] In the diagram: 1. Copper busbar; 2. Copper pillar; 3. PIN pinhole; 4. Solder paste layer; 21. Upper copper pillar; 22. Press-fit pillar; 23. Press-fit guide pillar; 24. Knurled layer; 25. Unloading groove. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0014] Please see Figure 1-4 One embodiment provided by this utility model: A copper busbar PIN pinhole includes a copper busbar 1 and copper pillars 2. A PIN pinhole 3 is provided on the copper busbar 1, and a copper pillar 2 is movably inserted into the PIN pinhole 3. A solder paste layer 4 is provided between the copper pillar 2 and the copper busbar 1. The copper pillar 2 consists of an upper copper pillar 21, a pressing pillar 22, and a pressing guide pillar 23 from top to bottom. The pressing pillar 22 has a knurled layer 24 around its periphery. The knurled layer 24 has a tooth pitch of 1 mm and a height of 0.1 mm. A material ejection groove 25 is provided between the pressing pillar 22 and the copper pillar 21. The edge of the pressing guide pillar 23 is chamfered at 0.1°.

[0015] In the above structure, the outer surface of the riveting post 22 is provided with knurling 24. The design of the knurling 24 allows for air venting through the gap between adjacent knurling 24s during riveting. The mutual cooperation of the riveting guide post 23 and the chamfered edges of the riveting guide post 23 facilitates the insertion of the copper post 2 into the PIN pin hole 3 of the copper busbar 1. The design of the ejector groove 25 facilitates the accumulation of excess copper material when the copper post 2 is pressed into the copper busbar 1, without affecting the pressing effect. Therefore, by adopting the process of opening holes in the copper busbar 1 and designing knurling 24 on the copper post 2, and using riveting and solder paste soldering layer, the stability and bonding force of the product connection are achieved, meeting the performance requirements. The copper busbar 1 and copper post 2 can be produced and processed separately, which can effectively solve the problem of low material utilization rate, and at the same time solve the problems of insufficient flexibility in later adjustment and low production efficiency, thereby improving material utilization rate, reducing material waste, and lowering costs.

[0016] Therefore, with optimized copper busbar design, the following benefits can be achieved: Compared to integrated design, the milling process is eliminated. By using riveting and welding, the desired cylindrical shape can be achieved directly, thus optimizing the process and reducing costs.

[0017] The easy-to-assemble PIN design facilitates automated production and assembly, reduces the complexity of manual operation, and improves production efficiency.

[0018] 3. Reliability: The well-riveted and welded pin connection has high electrical and mechanical reliability and can work stably under various environmental conditions.

[0019] 4. Easy to change and adjust: This process can quickly detect and replace faulty components when adjusting or changing, reducing maintenance costs and time.

[0020] 5. Expandability: The pin design allows for circuit expansion and upgrades. By adding or replacing components, the circuit function can be flexibly changed to adapt to different application requirements.

[0021] 6. Electrical performance: Good pin design can reduce connection resistance and inductance, improve signal transmission quality, and enhance the overall performance of the circuit.

[0022] 7. Modular design: Pin connections allow for modular design, enabling different functional modules to be designed and manufactured independently, facilitating the integration and maintenance of the overall system.

[0023] 8. Cost-effectiveness: Standardized and mature manufacturing processes make the production cost of pins relatively low, suitable for large-scale production, and reduce the overall product development and manufacturing costs.

[0024] 9. High adaptability: The pin design can adapt to various electrical and mechanical environments, including high temperature, high humidity, vibration, etc., to ensure normal operation of the equipment under harsh conditions.

Claims

1. A copper busbar PIN pinhole, characterized in that: This copper busbar PIN pinhole includes: a copper busbar (1) and a copper post (2). The copper busbar (1) is provided with a PIN pinhole (3). A copper post (2) is movably inserted in the PIN pinhole (3). A solder paste layer (4) is provided between the copper post (2) and the copper busbar (1). The copper post (2) consists of an upper copper post (21), a riveting post (22), and a riveting guide post (23) from top to bottom. The riveting post (22) has a knurled layer (24) around its periphery.

2. The copper busbar PIN pinhole according to claim 1, characterized in that: The knurled layer (24) has a tooth pitch of 1 mm and a height of 0.1 mm.

3. The copper busbar PIN pinhole according to claim 1, characterized in that: A material ejection groove (25) is provided between the press-fit column (22) and the upper copper column (21).

4. The copper busbar PIN pinhole according to claim 1, characterized in that: The edge of the press-fit guide post (23) is chamfered at 0.1°.

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