Plug-in printed circuit board connection

By designing a plug-type printed circuit board with adjustable pin count and impedance control area wiring, the shortcomings of FFC and FPC plugs in terms of design flexibility and high-frequency signal transmission are solved, achieving greater application flexibility and signal quality, and reducing production costs.

CN122246543APending Publication Date: 2026-06-19INNODISK CORP

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
INNODISK CORP
Filing Date
2024-12-18
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

Existing FFC and FPC plugs are insufficient in terms of design flexibility, production cost, and high-frequency signal transmission, and cannot meet the high requirements of certain application scenarios.

Method used

Design a plug-type printed circuit board wiring method to achieve multi-layer routing and impedance matching by adjusting the number of pins, pin allocation and impedance control area, thereby enhancing design flexibility and improving high-frequency signal quality.

Benefits of technology

It improves the application flexibility and high-frequency signal transmission quality of plug-type printed circuit boards, reduces production costs and time, and adapts to different application scenarios.

✦ Generated by Eureka AI based on patent content.

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Abstract

A plug-type printed circuit board (PCB) wiring includes a plug-type PCB and a set of cables. The plug-type PCB includes a plug-type connector, a wiring portion, and an impedance control area. The plug-type connector is located at a first end of the plug-type PCB and has multiple connector contacts, wherein the thickness of the plug-type connector is adapted to allow the connector to be inserted into an external interface. The wiring portion is located at a second end of the plug-type PCB and has multiple wiring contacts and a ground / power area. The impedance control area has a set of traces electrically connected between the multiple connector contacts and the multiple wiring contacts to achieve impedance matching between the multiple connector contacts and the multiple wiring contacts. The set of cables is connected to the wiring portion.
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Description

[Technical Field]

[0001] This invention relates to a plug-type printed circuit board wiring, and more particularly to a plug-type printed circuit board wiring that allows adjustment of the number and allocation of pins. [Background Technology]

[0002] Currently, there is no standardized pinout, header, or plug format for board-to-board connectors on the market. Traditionally, Flexible Flat Cable (FFC) plugs offer advantages such as flatness, lightness, and ease of installation. FFC plugs are commonly used to connect internal components such as motherboards and displays. However, FFC plugs have a single-layer structure, which limits their application compared to multi-layer routing or through-holes. Regarding the cable itself, it uses a fixed parallel line structure, which cannot be bent into complex shapes and can only make parallel line connections, resulting in low design flexibility. Furthermore, FFC cannot perform precise impedance control, which can affect signal quality in high-frequency signal transmission.

[0003] Another common connector is the Flexible Printed Circuit (FPC) connector, which is highly flexible and lightweight, making it suitable for miniaturized applications requiring flexibility. FPCs can have multi-layered structures, supporting jumpers and routing according to different pin positions. The manufacturing process includes steps such as photosensitive coating and etching, similar to traditional PCB manufacturing. However, when multi-layered designs or complex routing are required, the manufacturing and design costs of FPCs are higher. Because FPCs require complex processes involving routing design and fabrication, modifications and redesigns increase costs and require longer production times. Furthermore, FPC production typically has minimum order quantity (MOQ) requirements, which is uneconomical for small-batch or customized production.

[0004] The aforementioned drawbacks mean that traditional FFC and FPC plugs are unable to meet the higher demands of certain application scenarios that require greater design flexibility, shorter production cycles, or higher cost-effectiveness.

[0005] Therefore, there is an urgent need for a plug-type printed circuit board wiring that can adjust the number and allocation of pins to overcome the above problems. [Summary of the Invention]

[0006] One objective of this invention is to provide a plug-type printed circuit board wiring design that allows for flexible adjustment of the number of pins, pin allocation, and jumper design, thereby increasing application flexibility.

[0007] Another object of the present invention is to provide a plug-type printed circuit board and plug-type printed circuit board wiring, which improves the signal quality of high-frequency signal transmission by means of the design of impedance control area.

[0008] To achieve the above objectives, in one aspect of the present invention, a plug-type printed circuit board (PCB) wiring is provided, comprising a plug-type PCB and a set of cables. The plug-type PCB includes: a plug-type connector, a wiring portion, and an impedance control area. The plug-type connector is disposed at a first end of the plug-type PCB and has multiple connector contacts, wherein the thickness of the plug-type connector is adapted to allow the plug-type connector to be inserted into an external interface. The wiring portion is disposed at a second end of the plug-type PCB and has multiple wiring contacts and a ground / power area. The impedance control area has a set of traces electrically connected between the multiple connector contacts and the multiple wiring contacts to achieve impedance matching between the multiple connector contacts and the multiple wiring contacts. The set of cables is connected to the wiring portion.

[0009] To achieve the above objectives, in another aspect of the present invention, a plug-type printed circuit board (PCB) is provided, comprising: a plug-type connector, a wiring portion, and an impedance control region. The plug-type connector is disposed at a first end of the plug-type PCB and has multiple connector contacts, wherein the thickness of the plug-type connector is adapted to allow the plug-type connector to be inserted into an external interface. The wiring portion is disposed at a second end of the plug-type PCB and has multiple wiring contacts and a ground / power area for connecting a set of cables. The impedance control region has a set of traces electrically connected between the multiple connector contacts and the multiple wiring contacts to achieve impedance matching between the multiple connector contacts and the multiple wiring contacts.

[0010] Further descriptions and advantages of the present invention can be found in the following figures and embodiments for a clearer understanding of the technical solution of the present invention. [Attached Image Description]

[0011] The above-described objects and advantages of the present invention will become more immediately apparent to those skilled in the art upon reading the following detailed description and accompanying drawings.

[0012] Figure 1 This is a top view of the wiring of a plug-type printed circuit board according to an embodiment of the present invention;

[0013] Figure 2 This is a top view of a plug-type printed circuit board according to another embodiment of the present invention;

[0014] Figure 3 This is a top view of a plug-type printed circuit board according to another embodiment of the present invention;

[0015] Figure 4(A) to Figure 4 (F) is a top view of a plug-type printed circuit board according to another embodiment of the present invention; and

[0016] Figure 5 This is a top view of the wiring of a plug-type printed circuit board according to another embodiment of the present invention.

Detailed Implementation Methods

[0017] Please refer to the accompanying drawings for the following detailed description, which illustrate various embodiments of the invention by way of example and to provide an understanding of how to implement the invention. The embodiments of the invention provide sufficient content for those skilled in the art to implement the disclosed embodiments or embodiments derived from the disclosed content. It should be noted that these embodiments are not mutually exclusive, and some embodiments can be appropriately combined with one or more other embodiments to form new embodiments; that is, the implementation of the invention is not limited to the embodiments disclosed below. Furthermore, for the sake of brevity and clarity, excessive details are not disclosed in the embodiments; even when specific details are disclosed, they are only illustrative to make the reader clear, and the relevant specific details in the embodiments are not intended to limit the disclosure of this case.

[0018] Please see Figure 1 This is a top view of the wiring of a plug-type printed circuit board according to an embodiment of the present invention. Figure 1 In the above, the plug-type printed circuit board wiring 1 includes a plug-type printed circuit board 10 and a set of cables 15. The plug-type printed circuit board 10 includes: a plug-type connection part 101, a wiring part 103, and an impedance control area 102.

[0019] A plug-type connector 101 is disposed at one end of a plug-type printed circuit board 10, and the plug-type connector 101 has a plurality of connector contacts 1011. The thickness of the plug-type connector 101 is adapted to allow the plug-type connector to be inserted into an external interface (not shown). The connector contacts 1011 may be made of copper, tin, tin-copper alloy, gold, silver, or other conductors with good conductivity. Preferably, the surface of the connector contacts 1011 may be gold-plated or rhodium-plated to provide good conductivity, corrosion resistance, and oxidation resistance, thereby extending the service life of the plug-type connector 101. In addition, the thickness and width of the connector contacts 1011 can be adjusted according to design requirements to accommodate different current loads and impedance matching needs. In one embodiment, the thickness of the plug-type connector 101 is approximately 0.3 mm to facilitate insertion into an external interface and the formation of a clamping relationship. In some embodiments, the external interface may be a Mobile Industry Processor Interface (MIPI), a Universal Serial Bus (USB) interface, or a Low-Voltage Differential Signaling (LVDS) interface, or other interfaces. Therefore, the plurality of connection contacts 1011 of the plug-type connector 101 can be arranged in parallel at equal intervals. The number of pins, the pin pitch, and the pin assignment can be configured according to actual needs, and the present invention is not limited thereto.

[0020] A wiring section 103 is located at the other end of the plug-type printed circuit board 10, and the wiring section 103 has multiple wiring contacts 1031 and ground / power areas 1032 for connecting the group of cables 15. In one embodiment, the wiring contacts 1031 and the ground / power areas 1032 may be made of copper, tin, tin-copper alloy, gold, silver, or other conductors with good conductivity. Furthermore, the thickness and width of the wiring contacts 1031 and the ground / power areas 1032 can be adjusted according to design requirements to accommodate different current loads and impedance matching needs. The group of cables 15 and the wiring section 103 are connected via jumpers, depending on the actual usage requirements. In one embodiment, the group of cables 15 may be composed of multiple single-core wires or coaxial cables with good flexibility and conductivity. In one embodiment, the group of cables 15 may be covered with, for example, insulating tape or a rubber coating (not shown) to improve durability and anti-interference capabilities.

[0021] Impedance control region 102 has a set of traces 1021 electrically connected between multiple connection points 1011 and multiple wiring points 1031 to achieve impedance matching between the multiple connection points 1011 and the multiple wiring points 1031. In one embodiment, the impedance matching between the multiple connection points 1011 and the multiple wiring points 1031 can be controlled by adjusting the geometry of the traces 1021, such as material, length, width, and thickness, which is beneficial for improving signal quality during high-frequency transmission.

[0022] Furthermore, in some embodiments, on the plug-type printed circuit board 10, a plurality of connection contacts 1011, a plurality of wiring contacts 1031, and the set of traces 1021 can be disposed on any surface or two surfaces of the plug-type printed circuit board 10. In other words, the plug-type printed circuit board 10 of the present invention can provide a wiring method with upper contact and / or lower contact, avoiding connection failure due to incorrect contact surfaces. This ensures correct connection in both directions, increasing the flexibility of the application of the present invention.

[0023] Figure 2 This is a top view of a plug-type printed circuit board according to another embodiment of the present invention. Similar to... Figure 1 The plug-type printed circuit board 10 in the middle, Figure 2 The plug-type printed circuit board 20 includes a plug-type connector 201, a wiring portion 203, and an impedance control area 202. The plug-type connector 201 is located at one end of the plug-type printed circuit board 20 and has multiple connector contacts 2011. The wiring portion 203 is located at the other end of the plug-type printed circuit board 20 and has multiple wiring contacts 2031 and a ground / power area 2032. The impedance control area 202 has a set of traces 2021 electrically connected between the multiple connector contacts 2011 and the multiple wiring contacts 2031 to achieve impedance matching between the multiple connector contacts 2011 and the multiple wiring contacts 2031. However, with... Figure 1 The difference between the plug-type printed circuit board 10 and the plug-type printed circuit board 10 is that... Figure 2 The impedance control area 202 of the plug-type printed circuit board 20 can have a bending angle, so that the plug-type connector 201 and the wiring portion 203 have different orientations. In detail, the impedance matching between multiple connector contacts 2011 and multiple wiring contacts 2031 can be controlled by more flexibly adjusting the geometry of the material, length, width and thickness of the set of traces 2021, which is beneficial to improving the signal quality during high-frequency transmission.

[0024] As mentioned above, the number of contacts, contact spacing, and pin allocation on the plug-type printed circuit board of the present invention can be configured according to actual needs. Figure 3This is a top view of a plug-type printed circuit board according to another embodiment of the present invention. Figure 3 In this embodiment, the plug-type printed circuit board 30 has, for example, 40 contacts 3011. The plug-type printed circuit board 30 has a cuttable structure, allowing the user to cut it according to actual needs. Figure 3 The cutting line 31 shown is used for cutting, thereby adjusting the number of contacts. For example, if a specific application only requires 25 contacts, the user can cut off the excess to better suit the application requirements, avoiding waste and improving cost-effectiveness. This adjustable design greatly improves the versatility of the plug-type printed circuit board 30, meeting both high contact density requirements and applications with lower contact numbers.

[0025] During the cutting process, CNC (Computer Numerical Control) technology can be used to mount a milling cutter and cut along... Figure 3 The cutting line 31 shown is used for precision cutting. The end mill is characterized by its high hardness and sharp cutting edge, ensuring clean and smooth edges when cutting PCB materials, preventing delamination or breakage. Depending on the requirements, end mills of different diameters and numbers of cutting edges can be selected to achieve the best cutting results.

[0026] The shape of the plug-type printed circuit board of the present invention is not limited to Figure 1 The plug-type printed circuit board 10. To increase stability and prevent detachment, the plug-type printed circuit board of another embodiment of the present invention may have different structural variations on its sides. For example, in Figure 4 (A) The plug-type printed circuit board 41 has symmetrical barbs 415 on its sides; Figure 4 (B) The plug-type printed circuit board 42 has symmetrical perforations 425 on its side; Figure 4 (C) The plug-type printed circuit board 43 has symmetrical protrusions 435 on its sides; Figure 4 (D) The plug-type printed circuit board 44 has asymmetrical barbs 445 on its side; Figure 4 (E) The plug-type printed circuit board 45 has asymmetrical perforations 455 on its side; and in Figure 4 (F) The plug-type printed circuit board 46 has asymmetrical protrusions 465 on its side. However, the present invention is not limited thereto, and any person skilled in the art can make some modifications and substitutions without departing from the spirit and scope of the present invention.

[0027] Figure 5 This is a top view of the wiring of a plug-type printed circuit board according to another embodiment of the present invention. Figure 5In this embodiment, multiple connection points 5031 of the connection portion 503 of the first plug-type printed circuit board 50 are connected to multiple connection points 6031 of the connection portion 603 of the second plug-type printed circuit board 60 via a set of cables 55. In one embodiment, the number of connection points 5031 of the connection portion 503 of the first plug-type printed circuit board 50 and the number of connection points 6031 of the connection portion 603 of the second plug-type printed circuit board 60 are not necessarily the same, and their connection point configurations are also not necessarily the same, so that the set of cables 55 connects multiple connection points 5031 to multiple connection points 6031 in a customized connection point configuration relationship. In one embodiment, the set of cables 55 may be composed of multiple single-core wires or coaxial cables with good flexibility and conductivity. For example, such as... Figure 5 As shown, connection point 50312 is connected to connection point 60314 via the set of cables 55; connection point 50314 is connected to connection point 60315 via the set of cables 55; connection point 50315 is connected to connection point 60316 via the set of cables 55; connection point 50316 is connected to connection point 60311 via the set of cables 55; connection point 50318 is connected to connection point 60312 via the set of cables 55; and connection point 50319 is connected to connection point 60313 via the set of cables 55. The above connection point configuration can be customized by the user according to the needs of the actual application. In one embodiment, the set of cables 55 can be covered with, for example, insulating tape or a rubber coating (not shown) to improve durability and interference resistance.

[0028] In the above embodiments, the plug-type printed circuit board wiring features adjustable pin count and intermediate cable group. The number of contacts in the plug-type connector can be adjusted according to actual needs, and the structure of the intermediate cable group can be changed by replacing or rewiring to meet different specification requirements. This design not only reduces production costs but also improves product flexibility and adaptability.

[0029] Although the present invention has been disclosed above with reference to several embodiments or examples, it is not intended to limit the present invention. Any person skilled in the art may make some modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

[0030] [Symbol Explanation]

[0031] 1. Connector-type printed circuit board wiring

[0032] 10. Connector-type printed circuit board

[0033] 101 Plug-type connector

[0034] 1011 Connecting Part Contact

[0035] 102 Impedance Control Region

[0036] 1021 wiring

[0037] 103 Wiring Section

[0038] 1031 Wiring Section Contact

[0039] 1032 Grounding / Power Supply Area

[0040] 15 Cables

[0041] 20-pin type printed circuit board

[0042] 201 Plug-type connector

[0043] 2011 Connection Point

[0044] 202 Impedance Control Region

[0045] 2021 wiring

[0046] 203 Wiring Section

[0047] 2031 Wiring Section Contact

[0048] 2032 Grounding / Power Supply Area

[0049] 30-pin type printed circuit board

[0050] 3011 Contact

[0051] 31 Cutting line

[0052] 41. Connector-type printed circuit board

[0053] 415 Barbed

[0054] 42-pin type printed circuit board

[0055] 425 punch

[0056] 43. Connector-type printed circuit board

[0057] 435 protrusion

[0058] 44-pin type printed circuit board

[0059] 445 barbed hook

[0060] 45-pin type printed circuit board

[0061] 455 punch

[0062] 46-pin type printed circuit board

[0063] 465 protrusion

[0064] 50-pin type printed circuit board

[0065] 503 Wiring Section

[0066] 5031 Wiring Section Contact

[0067] 50314-50319 Wiring Section Contacts

[0068] 55 cable

[0069] 60-pin type printed circuit board

[0070] 603 Wiring Section

[0071] 6031 Wiring Section Contact

[0072] 60311-60316 Wiring Section Contacts

Claims

1. A plug-type printed circuit board (PCB) wiring, comprising: Connector-type printed circuit boards, including: A plug-type connector is disposed at the first end of the plug-type printed circuit board, and the plug-type connector has multiple connector contacts. The plug-type connector has a thickness adapted to accommodate the... The plug-type connector is inserted into the external interface; The wiring section is located at the second end of the plug-type printed circuit board. Furthermore, the wiring section has multiple wiring contacts and a grounding / power supply area; and An impedance control area has a set of traces electrically connected between the plurality of connection points and the plurality of wiring points to achieve impedance matching between the plurality of connection points and the plurality of wiring points; and A set of cables is connected to the junction box.

2. The connector-type printed circuit board wiring as described in claim 1, wherein the plurality of connection points, the plurality of wiring points, and the set of traces are disposed on any one or two surfaces of the connector-type printed circuit board.

3. The plug-type printed circuit board wiring as described in claim 1, wherein the thickness is approximately 0.3 mm.

4. The plug-type printed circuit board wiring as described in claim 1, wherein the set of cables is composed of multiple single-core wires or coaxial cables, and the wiring part is connected to the set of cables by means of a jumper.

5. The plug-type printed circuit board wiring as described in claim 1 further includes a sheathing layer, wherein the sheathing layer covers the group of cables.

6. The plug-type printed circuit board wiring as claimed in claim 1, wherein the plug-type printed circuit board can be cut so that the number of the plurality of connection points can be adjusted.

7. The plug-type printed circuit board wiring as claimed in claim 1, wherein the impedance control area has a bending angle such that the plug-type connection portion and the wiring portion have different orientations.

8. A plug-type printed circuit board (PCB) wiring, comprising: The first plug-type printed circuit board includes: A wiring section is disposed at one end of the first plug-type printed circuit board, and the wiring section has multiple wiring contacts; and The second-plug type printed circuit board includes: A wiring section is disposed at one end of the second plug-type printed circuit board, and the wiring section has multiple wiring contacts; and A set of cables connects the plurality of wiring contacts on the first plug-type printed circuit board to the plurality of wiring contacts on the second plug-type printed circuit board in a custom contact configuration relationship.

9. A plug-type printed circuit board (PCB), comprising: A plug-type connector is disposed at the first end of the plug-type printed circuit board, and the plug-type connector has multiple connector contacts, wherein the thickness of the plug-type connector is adapted to allow the plug-type connector to be inserted into an external interface; A wiring section is provided at the second end of the plug-type printed circuit board, and the wiring section has multiple wiring contacts and a ground / power area for connecting a group of cables. as well as The impedance control area has a set of traces that are electrically connected between the plurality of connection points and the plurality of wiring points to achieve impedance matching between the plurality of connection points and the plurality of wiring points.

10. The plug-type printed circuit board as claimed in claim 9, wherein the plurality of connection points, the plurality of wiring points, and the set of traces are disposed on a first surface of the plug-type printed circuit board and a second surface disposed opposite to the first surface.

11. The plug-type printed circuit board of claim 9, wherein the impedance control area has a bending angle such that the plug-type connection portion and the wiring portion have different orientations, and the wiring portion and the group of cables are connected by a jumper.