Electrical connection structure and power supply product
By transforming the process edge into a conductive channel and using conductive parts to achieve cross-board connections, the cost and area issues caused by cross-board connections are solved, and efficient and reliable electrical connections are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU INOSA UNITED POWER SYST CO LTD
- Filing Date
- 2025-04-08
- Publication Date
- 2026-04-28
AI Technical Summary
In power supply PCB design, cross-board connections require additional cables or copper busbars, leading to increased costs and larger PCB area.
The traditional process edge is transformed into a conductive channel, using the process edge as an electrical connection structure. Cross-board connections are achieved through conductive parts, replacing traditional external cables or copper busbars, providing more connection point options and reducing board space occupation.
It simplifies the connection structure, reduces product cost and circuit board area, improves the efficiency and reliability of the connection, and lowers the cost of bridging.
Smart Images
Figure CN224177597U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of circuit board technology, and in particular to an electrical connection structure and a power supply product. Background Technology
[0002] In power PCB (Printed Circuit Board) design, cross-board connections require additional cables or corresponding copper busbars for signal or current bridging. For example... Figure 1 As shown, when port A of PCB2 is connected to port C of PCB1, a cable or copper busbar needs to be added to port A to externally cross over to port C. When port A is connected to port B, the connection from port B to port C requires space on PCB1. When PCB2 is connected to PCB3, due to the distance between PCB2 and PCB3, a cable or copper busbar is also needed for the transition. However, adding cables or copper busbars for external bridging, or implementing cross-PCB electrical connections through internal traces, requires various protective measures, leading to increased product costs or an increase in PCB area. Utility Model Content
[0003] The main purpose of this utility model is to propose an electrical connection structure and power supply product, which aims to simplify the connection structure, reduce product costs, and reduce the area of the circuit board.
[0004] To achieve the above objectives, this utility model proposes an electrical connection structure, comprising:
[0005] An electrical connector, comprising a process edge and a conductive portion, wherein the process edge is disposed at the edge of a first circuit board, and the conductive portion is disposed at the process edge; and
[0006] At least one connection component, the at least one connection component including a first port and a second port electrically connected to the process edge, the first port being disposed away from the second port, the first port being disposed on the first circuit board, and the second port being disposed on the first circuit board or the second circuit board.
[0007] In one embodiment, the conductive portion includes a first copper layer disposed on the surface of the process edge.
[0008] In one embodiment, the conductive portion further includes a second copper layer, which is embedded within the process edge and electrically connected to the first copper layer.
[0009] In one embodiment, the connection assembly further includes two short-distance connectors, one of which is electrically connected to the first port and the conductive part, and the other of which is electrically connected to the second port and the conductive part.
[0010] In one embodiment, the short-distance connector is one of a welded component, a connector, or a conductive metal component.
[0011] In one embodiment, the electrical connector further includes at least one connecting rib, the at least one of the connecting ribs being detachably connected to the process edge and the first circuit board.
[0012] In one embodiment, a plurality of second circuit boards are disposed beside the first circuit board, and the electrical connection structure includes a plurality of the connection components, wherein a plurality of second ports of the plurality of connection components are respectively disposed on the plurality of second circuit boards.
[0013] In one embodiment, the first circuit board is disposed between the two second circuit boards, and the electrical connection structure includes:
[0014] A plurality of electrical connectors, wherein a plurality of process edges of the plurality of electrical connectors are sequentially spaced along the length direction of the first circuit board, and the plurality of process edges are respectively disposed close to a plurality of second circuit boards; and
[0015] A plurality of connecting components are provided, each corresponding to a plurality of electrical connectors. A plurality of first ports of the plurality of connecting components are respectively located on a plurality of process edges, and a plurality of second ports of the plurality of connecting components are respectively located on a plurality of second circuit boards. In one embodiment, the electrical connector includes a plurality of process edges, which are spaced apart at the edges of the first circuit board, and at least one of the process edges has the conductive portion.
[0016] This utility model also provides a power supply product, which includes the electrical connection structure described above.
[0017] This invention transforms the traditional process edge used for production clamping into a conductive channel. A conductive portion on the process edge enables electrical connection. Since the process edge is typically located at the edge of the circuit board and parallel to its length, it offers more connection point options, serving as an excellent physical carrier for cross-board connections without occupying additional board space. This replaces traditional external cables or copper busbars. The first port is located on the first circuit board, close to the process edge, and directly connected to the conductive portion. The second port is located away from the first port and can be flexibly arranged within the same circuit board or at any location on the second circuit board. This allows the conductive portion on the process edge to act as an electrical signal relay station, enabling electrical connection between the first and second ports. The two ports form an electrical connection path through the conductive portion on the process edge, allowing ports that are far apart to communicate without complex wiring, achieving both high efficiency and reliability. In summary, this application simplifies the structure of same-board or cross-board connections by using the process edge as a power conduction or power transfer method. It eliminates the need for additional long-distance cables or copper busbars, reduces product size, and saves on the cost of adding PCB board surface for crossovers within the board as well as the design and manufacturing costs of cables or conduction copper busbars required for crossovers outside the board. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.
[0019] Figure 1 This is a schematic diagram of the electrical connection structure in the prior art.
[0020] Figure 2 A schematic diagram of an embodiment of the electrical connection structure provided by this utility model;
[0021] Figure 3 A schematic diagram of another embodiment of the electrical connection structure provided by this utility model.
[0022] Explanation of icon numbers:
[0023] 100. Electrical connection structure; 1. Electrical connector; 11. Process edge; 12. Connecting rib; 2. Connecting assembly; 21. First port; 22. Second port; 23. Short-distance connector;
[0024] 200, First circuit board; 300, Second circuit board.
[0025] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0026] 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 scope of protection of the present utility model.
[0027] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.
[0028] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
[0029] This utility model proposes an electrical connection structure 100.
[0030] Please see Figure 2 The present invention proposes an electrical connection structure 100, including an electrical connector 1 and at least one connection component 2. The electrical connector 1 includes a process edge 11 and a conductive part. The process edge 11 is disposed at the edge of a first circuit board 200, and the conductive part is disposed at the process edge 11. The at least one connection component 2 includes a first port 21 and a second port 22 that are electrically connected to the process edge 11. The first port 21 is disposed away from the second port 22. The first port 21 is disposed on the first circuit board 200, and the second port 22 is disposed on the first circuit board 200 or the second circuit board 300.
[0031] This invention transforms the traditional process edge 11 used for production clamping into a conductive channel. A conductive portion is added to the process edge 11, enabling it to perform electrical connections. Since the process edge 11 is typically located at the edge of the circuit board and parallel to its length, it provides more connection point options, serving as an excellent physical carrier for cross-board connections without requiring additional board space. This replaces traditional external cables or copper busbars. The first port 21 is located on the first circuit board 200, close to the process edge 11, and directly connected to the conductive portion. The second port 22 is located away from the first port 21 and can be flexibly arranged within the same circuit board or at any position on the second circuit board 300. This allows the conductive portion on the process edge 11 to act as a relay station for electrical signals, enabling electrical connection between the first port 21 and the second port 22. The two ports form an electrical connection path through the conductive portion of the process edge 11, allowing ports that are far apart to communicate without complex wiring, achieving both high efficiency and reliability. In summary, this application simplifies the structure of same-board or cross-board connections by using process edge 11 as a power conduction or power transfer method. It eliminates the need for additional long-distance cables or copper busbars, reduces product size, and saves on the cost of circuit board surface for adding crossovers within the board as well as the design and manufacturing costs of cables or conduction copper busbars required for crossovers outside the board.
[0032] It should be noted that the first port 21 and the second port 22 are interfaces or contact points on the circuit board used to realize electrical connections and transmit signals or current. They are key points for communication and energy exchange between different parts of the circuit board or within the circuit board. The first port 21 and the second port 22 can be made of metal materials with good conductivity, such as copper, gold, and nickel. Different materials can provide different electrical and mechanical properties to meet the needs of various circuit board designs. Therefore, the actual selection depends on the specific application requirements, performance requirements, and cost considerations.
[0033] In this embodiment, process edge 11 can be approximated as a transition circuit board. Please refer to the attached diagram. Figure 2 and attached Figure 3In this configuration, C can be considered as the first port 21, B as either the first port 21 or the second port 22, and A and D as the second port 22. When establishing a cross-board connection between two circuit boards, a short-distance cable or jumper is used to electrically connect the second circuit board 300 to the process edge 11 at port A. Then, utilizing the characteristics of the process edge 11, a short-distance cable or jumper is used on the process edge 11 near port C to bridge to port C of the first circuit board 200. Similarly, when establishing a connection between different ports on the same circuit board, a short-distance cable or jumper is used to electrically connect the first circuit board 200 to the process edge 11 at port B. Then, utilizing the characteristics of the process edge 11, a short-distance cable or jumper is used on the process edge 11 near port C to bridge to port C of the first circuit board 200.
[0034] In one embodiment, the conductive portion includes a first copper layer disposed on the surface of the process edge 11. The first copper layer can be formed directly on the surface of the process edge 11 (i.e., the outermost layer of the circuit board) by etching or plating processes. Its shape needs to be designed as a continuous conductive pattern (such as a straight line, a broken line, or a grid) to cover all or part of the surface of the process edge 11, thereby forming a conductive channel for cross-board connection. In this way, the existing etching or plating processes can be used when the first circuit board 200 is subjected to surface treatment processes, without the need to introduce new production equipment or processes. It is compatible with conventional SMT (Surface Mount Technology) mounting processes and facilitates mass production.
[0035] To improve the reliability of the conductive part, in one embodiment, the conductive part further includes a second copper layer, which is embedded inside the process edge 11 and electrically connected to the first copper layer. In this embodiment, the second copper layer is typically electrically connected to the first copper layer through a via. The via needs to penetrate the inner layer of the process edge 11 to connect the first and second copper layers, thereby enabling the transmission of electrical signals. This increases the area of the conductive region, provides a more stable electrical connection and current carrying capacity, reduces resistance, and also reduces system problems caused by failures of external connection components.
[0036] In other embodiments, the conductive part can be a conductive metal such as silver, gold, or nickel, or a metal alloy or conductive adhesive. Of course, when selecting the material of the conductive part, its conductivity, cost, corrosion resistance, mechanical strength, processing technology and specific application requirements need to be considered.
[0037] To achieve electrical connection between the first port 21 and the second port 22 and the conductive part, in one embodiment, the connecting assembly 2 further includes two short-distance connectors 23. One short-distance connector 23 electrically connects the first port 21 and the conductive part, and the other short-distance connector 23 electrically connects the second port 22 and the conductive part. In this embodiment, the points on the conductive part used for connection with the first port 21 and the second port 22 should be set as close as possible to the first port 21 and the second port 22. Using short-distance connectors 23 not only achieves a stable and reliable electrical connection between the first port 21, the second port 22 and the conductive part, improving connection flexibility and enhancing the overall circuit reliability and maintainability, but also saves connection materials and reduces system space.
[0038] In one embodiment, the short-distance connector 23 is one of a welded component, a connector, or a metal conductive component. In this embodiment, the short-distance connector 23 can be selected according to actual needs and design: when a welded component is used, the first port 21 and the second port 22 are connected to the pads of the conductive part (copper layer) by welding (such as wave soldering or reflow soldering). Welding can provide a strong and stable electrical connection, which is suitable for scenarios that do not require frequent disassembly or scenarios with high current and high reliability (such as motor drive circuit boards); a connector is usually a standardized interface (such as pin headers or board-to-board connectors), which is connected to the interface of the conductive part by plugging, supports multiple disassembly and assembly, and is easy to maintain; a metal conductive component usually refers to copper busbars, metal wires, etc., which have good conductivity and mechanical strength, and are suitable for high current or high voltage applications.
[0039] In one embodiment, the electrical connector 1 further includes at least one connecting rib 12, which is detachably connected to the process edge 11 and the first circuit board 200. The core function of the connecting rib 12 is to temporarily fix the process edge 11 to the first circuit board 200 through a detachable structure, allowing the process edge 11 to be used as a transition circuit board in specific scenarios. Simultaneously, when not needed, the excess portion can be quickly removed by a cutting machine, achieving a flexible and compatible design. For example, when connecting port A to port C or D, the process edge 11 needs to be retained to serve as a transition, ensuring a stable electrical connection; while when only the connection from port C to port D is needed, the excess process edge 11 between segments B and C can be removed to simplify the circuit board layout and improve space utilization.
[0040] Of course, this application can also use the same process edge 11 to realize electrical transfer between multiple boards. For example, in one embodiment, multiple second circuit boards 300 are disposed on the side of the first circuit board 200, and the electrical connection structure 100 includes multiple connection components 2, and multiple second ports 22 of the multiple connection components 2 are respectively disposed on the multiple second circuit boards 300. In this embodiment, the first circuit board 200 serves as the core board, with multiple second circuit boards 300 arranged beside it. This layout allows the first circuit board 200 to be connected in parallel with multiple second circuit boards 300, and the number of second circuit boards 300 can be flexibly increased or decreased as needed (e.g., two or more). Each connecting component 2 is responsible for the electrical connection between one second circuit board 300 and the first circuit board 200. Thus, each second circuit board 300 is electrically connected to the conductive part on the process edge 11 through its second port 22, and the conductive part is connected to the first port 21 of the first circuit board 200 through a short-distance connector 23. Therefore, each second circuit board 300 can be electrically connected to the first circuit board 200. In this way, the same process edge 11 can be used as an electrical transfer channel between multiple boards, reducing the number of connecting components, improving connection efficiency, and making the system highly scalable. Functional modules can be easily added or removed as needed, providing an effective solution for the design and manufacture of complex electronic devices.
[0041] Please see Figure 3 In one embodiment, a plurality of second circuit boards 300 are disposed beside the first circuit board 200. The electrical connection structure 100 includes a plurality of electrical connectors 1 and a plurality of connection components 2. A plurality of process edges 11 of the plurality of electrical connectors 1 are sequentially spaced along the length direction of the first circuit board 200, and each of the process edges 11 is disposed close to a plurality of second circuit boards 300. A plurality of connection components 2 are disposed corresponding to a plurality of electrical connectors 1. A plurality of first ports 21 of the plurality of connection components 2 are disposed on a plurality of process edges 11, and a plurality of second ports 22 of the plurality of connection components 2 are disposed on a plurality of second circuit boards 300. In the above embodiment, by placing a plurality of electrical connectors 1 close to the plurality of second circuit boards 300 that need to be connected across boards, the signal transmission delay and loss can be reduced, and the signal transmission efficiency can be improved by shortening the connection distance and optimizing the connection path. Of course, the multiple process edges 11 mentioned above can be formed by cutting the same process edge 11 at different positions. This ensures that the multiple process edges 11 are of moderate length, which is convenient for connection with the second circuit boards 300 on both sides. In space-constrained electronic devices, this design can effectively utilize space and achieve a compact circuit board layout.
[0042] In one embodiment, the electrical connector 1 includes a plurality of process edges 11 spaced apart from the edge of the first circuit board 200, and at least one process edge 11 has a conductive portion. In this embodiment, the electrical connector 1 includes not just one process edge 11, but a plurality of process edges 11. These process edges 11 are spaced apart along the edge of the first circuit board 200 to provide multiple connection points, allowing the designer to select the most suitable connection position according to actual needs, thus improving the flexibility of the electrical connection structure 100.
[0043] This utility model also provides a power supply product, including an electrical connection structure 100. The specific structure of the electrical connection structure 100 is as described in the above embodiments. Since the power supply product adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.
[0044] The above are merely exemplary embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the technical concept of this utility model and the contents of the specification and drawings of this utility model, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this utility model.
Claims
1. An electrical connection structure, characterized in that, include: An electrical connector, comprising a process edge and a conductive portion, wherein the process edge is disposed on the edge of a first circuit board and the conductive portion is disposed on the process edge; and At least one connection component, the at least one connection component including a first port and a second port electrically connected to the process edge, the first port being disposed away from the second port, the first port being disposed on the first circuit board, and the second port being disposed on the first circuit board or the second circuit board.
2. The electrical connection structure as described in claim 1, characterized in that, The conductive part includes a first copper layer, which is disposed on the surface of the process edge.
3. The electrical connection structure as described in claim 2, characterized in that, The conductive part further includes a second copper layer, which is embedded inside the process edge and electrically connected to the first copper layer.
4. The electrical connection structure as described in claim 1, characterized in that, The connection assembly further includes two short-distance connectors, one of which is electrically connected to the first port and the conductive part, and the other of which is electrically connected to the second port and the conductive part.
5. The electrical connection structure as described in claim 4, characterized in that, The short-distance connector is one of a welded component, a connector, or a metal conductive component.
6. The electrical connection structure as described in claim 1, characterized in that, The electrical connector further includes at least one connecting rib, and at least one of the connecting ribs is detachably connected to the process edge and the first circuit board.
7. The electrical connection structure as described in claim 1, characterized in that, A plurality of second circuit boards are disposed on the side of the first circuit board, and the electrical connection structure includes a plurality of the connection components, wherein a plurality of the second ports of the plurality of connection components are respectively disposed on the plurality of second circuit boards.
8. The electrical connection structure as described in claim 1, characterized in that, A plurality of second circuit boards are disposed beside the first circuit board, and the electrical connection structure includes: A plurality of electrical connectors, wherein a plurality of process edges of the plurality of electrical connectors are sequentially spaced along the length direction of the first circuit board, and the plurality of process edges are respectively disposed close to a plurality of second circuit boards; and The plurality of connection components are respectively provided for the plurality of electrical connectors, the plurality of first ports of the plurality of connection components are respectively provided on the plurality of process edges, and the plurality of second ports of the plurality of connection components are respectively provided on the plurality of second circuit boards.
9. The electrical connection structure as described in claim 1, characterized in that, The electrical connector includes a plurality of process edges, which are spaced apart at the edge of the first circuit board, and at least one of the process edges is provided with the conductive portion.
10. A power supply product, characterized in that, The power supply product includes the electrical connection structure as described in any one of claims 1 to 9.