Stable connection type spliced circuit board
The combination of sockets, flexible strips, plugs, elastic pads, and fastening claws achieves a stable connection of the circuit board, solves the problem of easy loosening of the plug, improves the firmness and flexibility of the connection, and facilitates maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN HUAXIANG TECH CO LTD
- Filing Date
- 2025-05-30
- Publication Date
- 2026-05-08
AI Technical Summary
Traditional splicing circuit boards are prone to loosening, leading to poor contact, and lack flexibility and ease of maintenance.
It adopts a combination structure of socket, flexible band, plug, elastic pad, pressure plate, fastening head and fastening claw. The plug is locked by mechanical fastening, and the compression and rebound of the elastic pad and the hooking and pressing of the fastening claw provide a double anti-loosening mechanism.
It improves the robustness and reliability of circuit board connections, adapts to different spatial layouts, and facilitates quick maintenance.
Smart Images

Figure CN224218581U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of circuit board technology, and in particular to a stable connection splicing circuit board. Background Technology
[0002] Panelized circuit boards (PCBs) are assembled from multiple independent small-sized circuit boards in a specific way to form a larger circuit board combination. The core of this method is to optimize the production process, reduce costs, and improve efficiency.
[0003] Traditional splicing circuit boards are mostly fixed by plug-in interfaces or soldering, which has the following drawbacks:
[0004] The connection is prone to loosening: it relies solely on the frictional engagement between the pin and the plug, and vibration or external force can easily lead to poor contact.
[0005] Therefore, there is an urgent need for a splicing solution that combines flexibility, stability, and ease of maintenance. Utility Model Content
[0006] The purpose of this invention is to at least solve one of the aforementioned technical defects.
[0007] Therefore, one objective of this utility model is to propose a stable connection splicing circuit board to solve the problems mentioned in the background art and overcome the shortcomings of the prior art.
[0008] To achieve the above objectives, one embodiment of the present invention provides a stable connection splicing circuit board, including a main board and a sub-board, wherein the sub-board is detachably connected to the top of the main board, and a plurality of components are mounted on the surface of the main board and the sub-board.
[0009] A connector is fixedly connected to the edge of the motherboard surface, and a pin port is integrated in the connector;
[0010] A flexible strip is fixedly connected to the edge of the surface of the sub-plate, and a plug is fixedly connected to the end of the flexible strip. The plug has several pins that are inserted into the pin openings of the socket.
[0011] An elastic pad is fixedly connected to the upper end face of the socket, and a pressure plate is tightly fastened to the upper end face of the socket. Fastening heads are fastened to both ends of the pressure plate, and the fastening heads are threadedly connected to the upper end face of the socket.
[0012] Several fastening claws are fixedly connected to the top of the pressure plate. The fastening claws are bent and hook onto the top surface of the plug. An elastic pad is pressed under the pressure plate.
[0013] Preferably, the substrate of the motherboard and the sub-board is polyimide, as described in any of the above schemes.
[0014] The above technical solution is adopted: This splicing circuit board is mainly composed of a main board and a sub-board. The connection structure between the main board and the sub-board is a socket, a flexible strip, a plug, an elastic pad, a pressure plate, a fastening head, and a fastening claw.
[0015] The main advantage of using flexible strip connections is that the connection operation is simple and the relative positions of the plates are not limited by space.
[0016] Preferably, in any of the above solutions, the shape of the socket matches that of the plug, and the flexible strip can be of any shape.
[0017] Furthermore, the above technical solution employs a mechanical fastening method to further secure the plug at the end of the flexible strip, making the connection more reliable. After the plug is inserted, the pressure plate is installed, and the fastening head is used to tighten the pressure plate. The pressure plate presses down on the elastic pad, compressing it, and the fastening claws hook the plug. After the fastening head is fully engaged, the plug is further mechanically locked, which greatly improves the firmness of this connection method and achieves the purpose of a more reliable connection.
[0018] Preferably, in any of the above solutions, the flexible strip is rigidly connected to the sub-plate, and the elastic pad is made of silicone.
[0019] Preferably, of any of the above solutions, the pressure plate is made of PVC and the bending angle of the fastening claw is 90 degrees.
[0020] Flexible strip layout: The sub-board is connected to the main board through flexible strips of arbitrary shape, freeing it from spatial alignment limitations;
[0021] Double protection with elastic compression and mechanical locking: After the plug is inserted, the pressure plate presses down on the elastic pad to provide pre-tightening force, while the locking claws hook the plug, thus preventing loosening.
[0022] Preferably, the fastening head is a Phillips head screw, as described in any of the above solutions.
[0023] Structural components:
[0024] Mainboard and subboard: The substrate is polyimide (PI), which combines high temperature resistance and flexibility, and allows for surface mounting of components;
[0025] Connection components:
[0026] Connector: Integrated into the edge of the motherboard, with an internal pin array and a silicone elastic pad attached to the upper surface;
[0027] Plug: Fixed to the end of the flexible strip, with pins arranged to match the socket; the flexible strip can be bent into any shape to adapt to the installation space.
[0028] Pressure plate: Made of PVC, covering the top of the plug, and locked at both ends with cross screws (fastening heads). The bottom of the pressure plate presses against the elastic pad, and the top is equipped with multiple angled metal fastening claws to hook and press the top surface of the plug.
[0029] Assembly and locking process
[0030] Plug-in alignment: Insert the plug of the sub-board along the pin opening of the socket, and adjust the position by naturally bending the flexible strap;
[0031] Pre-compression elastic pad: Place the pressure plate on the socket, and the elastic pad is initially compressed to eliminate gaps;
[0032] Mechanical locking: Tighten the Phillips screw, and the pressure plate continues to press down, further compressing the elastic pad. At the same time, the locking claw generates downward hooking force due to the bending angle, locking the plug tightly in the socket.
[0033] Advantages and effects
[0034] Vibration / shock resistance: The compression and rebound of the elastic pads offset minor displacements, and the fastening claws provide rigid restraint, with a dual mechanism to prevent loosening;
[0035] Quick maintenance: Disassembly only requires loosening the screws, no destructive operations are required;
[0036] Wide adaptability: The flexible belt can bend around obstacles and is suitable for narrow or non-linear spatial layouts.
[0037] Extend
[0038] Flexible strip connection method: The flexible strip and the sub-board can be rigidly connected by hot pressing or adhesive bonding to ensure signal transmission stability;
[0039] Material alternatives: The pressure plate can be replaced with nylon-reinforced material to improve strength, and the elastic pad can also be made of fluororubber to enhance aging resistance.
[0040] Compared with the prior art, the advantages and beneficial effects of this utility model are as follows:
[0041] This robust connection type splicing circuit board utilizes a combination of connectors, flexible strips, plugs, elastic pads, pressure plates, fastening heads, and fastening claws. A mechanical fastening method further secures the plug at the end of the flexible strip, making the connection more reliable. After the plug is inserted, the pressure plate is installed, and the fastening head is used to tighten it. The pressure plate presses down on the elastic pad, compressing it, and the fastening claws hook the plug. Once the fastening head is fully engaged, the plug is further mechanically locked. The compression and rebound of the elastic pad counteracts minor displacement, and the fastening claws provide rigid constraint. This dual mechanism prevents loosening, greatly improving the robustness of this connection method and ensuring a more reliable connection of the circuit board.
[0042] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0043] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:
[0044] Figure 1 This is a first-view structural schematic diagram of the present invention;
[0045] Figure 2 This is a structural schematic diagram of the present invention from a second perspective;
[0046] Figure 3 This is a structural schematic diagram of the present invention from a third-view perspective;
[0047] Figure 4 This utility model Figure 1 A magnified structural diagram of point A in the middle.
[0048] In the diagram: 1-Main board, 2-Sub-board, 3-Component, 4-Socket, 5-Flexible strip, 6-Plug, 7-Elastic pad, 8-Pressure plate, 9-Fastening head, 10-Fastening claw. Detailed Implementation
[0049] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.
[0050] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0051] like Figure 1-4 As shown, this stable connection splicing circuit board includes a main board 1 and a sub-board 2. The sub-board 2 is detachably connected to the top of the main board 1. Several components 3 are mounted on the surface of the main board 1 and the sub-board 2.
[0052] A connector 4 is fixedly connected to the edge of the motherboard 1 surface, and a pin port is integrated in the connector 4.
[0053] A flexible strip 5 is fixedly connected to the edge of the surface of the sub-plate 2. A plug 6 is fixedly connected to the end of the flexible strip 5. The plug 6 has several pins that are inserted into the pin holes of the socket.
[0054] An elastic pad 7 is fixedly connected to the upper end face of the socket 4. A pressure plate 8 is fastened to the upper end face of the socket 4. Fastening heads 9 are fastened to both ends of the pressure plate 8. The fastening heads 9 are threadedly connected to the upper end face of the socket 4.
[0055] Several fastening claws 10 are fixedly connected to the top of the pressure plate 8. The fastening claws 10 are bent and hook onto the top surface of the plug 6. The elastic pad 7 is pressed down below the pressure plate 8.
[0056] Example 1: The substrate of the main board 1 and the sub-board 2 is polyimide. This splicing circuit board mainly consists of the main board 1 and the sub-board 2. The connection structure between the main board 1 and the sub-board 2 is a connector 4, a flexible strip 5, a plug 6, an elastic pad 7, a pressure plate 8, a fastening head 9, and a fastening claw 10. The main advantage of using the flexible strip 5 for connection is that the connection operation is simple and the relative position of the boards is not limited by space. The shapes of the connector 4 and the plug 6 are matched, and the flexible strip 5 can be of any shape. The flexible strip 5 is rigidly connected to the sub-board 2, and the elastic pad 7 is made of silicone. The pressure plate 8 is made of PVC, and the bending angle of the fastening claw 10 is 90 degrees. The flexible strip 5 can be freely arranged: the sub-board 2 is connected to the main board 1 through the flexible strip 5 of any shape, thus overcoming the limitations of spatial alignment;
[0057] Double safety features: elastic clamping + mechanical locking. After the plug 6 is inserted, the pressure plate 8 presses down on the elastic pad 7 to provide pre-tightening force, while the fastening claw 10 hooks the plug, thus preventing loosening. The fastening head 9 is a Phillips head screw.
[0058] Example 2: Extension
[0059] Flexible strip connection method: The flexible strip 5 and the sub-board 2 can be rigidly connected by hot pressing or adhesive bonding to ensure signal transmission stability;
[0060] Material alternatives: The pressure plate 8 can be replaced with nylon-reinforced material to improve strength, and the elastic pad 7 can also be made of fluororubber to enhance aging resistance.
[0061] The working principle of this utility model is as follows:
[0062] Structural components:
[0063] Main board 1 and sub-board 2: The substrate is polyimide (PI), which has both high temperature resistance and flexibility, and surface mount components 3;
[0064] Connection components:
[0065] Socket 4: Integrated on the edge of the motherboard, with an internal pin array and a silicone elastic pad 7 attached to the upper surface;
[0066] Plug 6: Fixed to the end of the flexible strip 5, with the pin arrangement matching the socket 4. The flexible strip 5 can be bent into any shape to adapt to the installation space.
[0067] Pressure plate 8: Made of PVC, covering the upper end of the socket 4, and locked at both ends by cross screws (fastening heads 9). The bottom of the pressure plate presses against the elastic pad 7, and the top is provided with multiple 90° bent metal fastening claws 10 to hook and press the top surface of the plug 6.
[0068] Assembly and locking process
[0069] Plug-in alignment: Insert the plug 6 of the sub-board 2 along the pin 4 of the socket, and adjust the position by naturally bending the flexible strip 5;
[0070] Pre-compression elastic pad 7: Place the pressure plate 8 on the socket 4, and the elastic pad 7 is initially compressed to eliminate the gap;
[0071] Mechanical locking: Tighten the cross screw 9, and the pressure plate 8 continues to press down to further compress the elastic pad 7. At the same time, the fastening claw 10 generates downward hooking pressure due to the bending angle, locking the plug 6 tightly in the socket 4.
[0072] Compared with the prior art, the present invention has the following advantages:
[0073] This robustly connected splicing circuit board utilizes a combination of connector 4, flexible strip 5, plug 6, elastic pad 7, pressure plate 8, fastening head 9, and fastening claw 10. Mechanical fastening further secures the plug 6 at the end of the flexible strip 5, making the connection more reliable. After the plug 6 is inserted, the pressure plate 8 is installed, and the fastening head 9 is used to tighten it. The pressure plate 8 presses down on the elastic pad 7, compressing it. The fastening claw 10 hooks the plug 6. Once the fastening head 9 is fully engaged, the plug 6 is further mechanically locked. The compression and rebound of the elastic pad 7 offsets minor displacement, and the fastening claw 10 provides rigid constraint. This dual mechanism prevents loosening, greatly improving the robustness of this connection and ensuring a more reliable connection of the circuit board.
Claims
1. A robustly connected splicing circuit board, characterized in that, Includes a main board (1) and a sub-board (2), with the sub-board (2) detachably connected to the top of the main board (1), and several components (3) mounted on the surfaces of the main board (1) and the sub-board (2); A connector (4) is fixedly connected to the edge of the surface of the motherboard (1), and a pin port is integrated in the connector (4); A flexible strip (5) is fixedly connected to the edge of the surface of the sub-plate (2), and a plug (6) is fixedly connected to the end of the flexible strip (5). The plug (6) has several pins that are inserted into the pin opening of the socket. An elastic pad (7) is fixedly connected to the upper end face of the socket (4), and a pressure plate (8) is fastened to the upper end face of the socket (4). Fastening heads (9) are fastened to both ends of the pressure plate (8), and the fastening heads (9) are threadedly connected to the upper end face of the socket (4). The top of the pressure plate (8) is fixedly connected with several fastening claws (10). The fastening claws (10) are bent and hooked onto the top surface of the plug (6). The elastic pad (7) is pressed under the pressure plate (8).
2. The stable connection splicing circuit board as described in claim 1, characterized in that: The substrate of the main board (1) and the sub-board (2) is polyimide.
3. The stable connection splicing circuit board as described in claim 2, characterized in that: The shape of the socket (4) matches that of the plug (6), and the flexible strip (5) can be of any shape.
4. The stable connection splicing circuit board as described in claim 3, characterized in that: The flexible strip (5) is rigidly connected to the sub-plate (2), and the elastic pad (7) is made of silicone.
5. A stable connection splicing circuit board as described in claim 4, characterized in that: The pressure plate (8) is made of PVC, and the bending angle of the fastening claw (10) is 90 degrees.
6. The stable connection splicing circuit board as described in claim 5, characterized in that: The fastening head (9) is specifically a Phillips head screw.