Overlapped PCB (Printed Circuit Board)

Abstract

The utility model relates to the technical field of PCBs (Printed Circuit Board), and discloses a laminated PCB, which comprises positioning columns which are symmetrically arranged, positioning pins and positioning grooves which are matched with each other, and a magnetic attraction block attraction piece, and realizes rapid and accurate combination and disassembly between PCB main bodies. The attraction piece can be an electromagnet or an iron ring, the connection strength is controlled through a power source, meanwhile, the flexibility of fixing and positioning is further enhanced through the telescopic threaded sleeve piece and the clamping assembly, clamping grooves are formed in the inner sides of clamping jaws of the clamping assembly, and the clamping grooves are arranged in a trapezoidal opening mode. Chamfers are arranged on the inner sides of the ends, away from the sliding rods, of the clamping jaws. According to the PCB clamping device, the clamping grooves are arranged in a trapezoidal opening mode, the gradually-changed opening design is formed, and therefore the PCB clamping device can be suitable for clamping PCBs of different thicknesses, maintenance of the PCBs is simplified, the size is reduced, the space utilization rate is increased, any combination is allowed, and the PCB clamping device is suitable for various installation spaces.

Description

Technical Field

[0001] This utility model relates to the field of PCB board technology, specifically to a laminated PCB board. Background Technology

[0002] A PCB (Printed Circuit Board) is a fundamental component in electronic devices. It carries and connects electronic components to form circuits. It is made of a substrate (usually glass fiber reinforced plastic) coated with conductive copper foil, and circuit patterns are etched onto it using chemical or mechanical methods. PCBs are used for wiring, fixing electronic components, insulation, and providing mechanical support. They are widely used in various electronic devices such as computers, mobile phones, and home appliances.

[0003] A stacked PCB is a special PCB design that allows multiple PCB bodies to be stacked together through a specific connection mechanism.

[0004] Traditional stacked PCBs typically use an external frame for support and multiple PCBs are secured with screws. While this structure can fix the relative positions of the PCBs, it requires tightening screws one by one during assembly and disassembly, which is inefficient, time-consuming, and has high maintenance costs. In addition, the use of an external frame increases the size of the stacked PCB, limiting its use in environments with limited installation space.

[0005] Therefore, we propose a composite PCB board to solve the problems mentioned above. Utility Model Content

[0006] The purpose of this utility model is to provide a laminated PCB board to solve the problems of laborious assembly and disassembly and large size of traditional laminated PCB boards mentioned in the background art.

[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0008] A composite PCB board includes multiple PCB board bodies, and a connecting component is provided between the multiple PCB board bodies. The connecting component includes a first positioning post and a second positioning post. The first positioning post and the second positioning post are symmetrically installed on both sides of the PCB board body. A positioning pin is fixedly connected to the end of the first positioning post away from the PCB board body. A positioning groove matching the positioning pin is opened on the end of the second positioning post away from the PCB board. A suction member is provided between the second positioning post and the first positioning post.

[0009] Preferably, the attracting component includes a first magnetic block and a second magnetic block. The first magnetic block is fixedly connected to the end of the first positioning post near the positioning pin, and the second magnetic block is fixedly connected to the end of the second positioning post near the positioning groove. Both the first magnetic block and the second magnetic block are annular. The first magnetic block is sleeved on the outside of the positioning pin. When the positioning pin is inserted into the positioning groove, the first magnetic block and the second magnetic block attract and fix each other.

[0010] Preferably, the first magnetic block and the second magnetic block are two electromagnets or one of them is an iron ring.

[0011] Preferably, the first magnetic block and the second magnetic block are two electromagnets, which are connected to a power supply line, and both the first positioning post and the second positioning post are made of insulating material.

[0012] Preferably, multiple sets of PCB board bodies are arranged in parallel, and the connecting components position and connect the two sets of PCB board bodies.

[0013] Preferably, the first positioning post is a retractable threaded assembly, which includes an inner threaded rod and an outer threaded sleeve. The inner threaded rod is fixedly connected to the PCB body, and the outer threaded sleeve is threadedly engaged with the inner threaded rod. The inner threaded rod and the outer threaded sleeve can rotate and extend together.

[0014] Preferably, the PCB board body is provided with a locking assembly, which includes a guide groove and is fixedly connected to one side of the PCB board body.

[0015] Preferably, two slide rods are slidably connected inside the guide groove, and a return spring is fixedly connected to each end of the guide groove, with the other end of the return spring fixedly connected to the slide rod.

[0016] Preferably, a pawl is fixedly connected to the end of the slide rod away from the guide groove, and the pawl is L-shaped.

[0017] Preferably, the inner side of the claw is provided with a groove, which is a trapezoidal opening; the inner side of the claw away from the slide bar is provided with a chamfer.

[0018] Compared with the prior art, the beneficial effects achieved by this utility model are:

[0019] This invention achieves rapid assembly, precise connection, and convenient disassembly / reassembly of PCB boards through optimized connecting components and their interactions. Specifically, the main bodies of the PCB boards are connected by a connecting component, which includes positioning posts and engaging components. The positioning posts are symmetrically installed on both sides of the PCB board body, achieving precise fixation through the cooperation of positioning pins and positioning slots. The engaging components utilize magnetic blocks or electromagnets for reliable connection. Furthermore, the telescopic design of the positioning posts allows for adaptation to PCB boards of different thicknesses, and the engaging components of the connecting assembly can provide additional fixation and positioning as needed. Compared to traditional structures, this design significantly reduces the overall volume and the need for external frames, thereby reducing the complexity of maintenance and installation. The specific principle is as follows: during installation, the positioning pins are inserted into the positioning slots, and the magnetic blocks or electromagnets engage to complete the fixation; during disassembly, simply pull out the positioning posts, remove the positioning pins, and release the magnetic blocks to quickly separate or reassemble the PCB boards, without requiring complex tools or time. The two jaws are moved between each other via a sliding rod, allowing for adjustment of the distance between them. This enables clamping and fixing of PCBs of different widths, increasing the possibility of stacked PCB combinations. This solution supports the stacking of any number and combination of PCBs, offering high modularity and system flexibility. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the PCB board body and connecting components of this utility model;

[0021] Figure 2 This is an exploded structural diagram of the connecting component of this utility model;

[0022] Figure 3 This is a schematic diagram of the PCB board body and the snap-fit ​​assembly structure of this utility model;

[0023] Figure 4 This is an exploded structural diagram of the snap-fit ​​assembly of this utility model.

[0024] The components are: 1. PCB board body; 3. First positioning post; 4. Second positioning post; 5. Positioning pin; 6. Positioning groove; 7. Suction component; 8. First magnetic block; 9. Second magnetic block; 13. Inner threaded rod; 14. Outer threaded sleeve; 15. Guide slide; 16. Slide rod; 17. Return spring; 18. Claw; 20. Slot; 21. Chamfer. Detailed Implementation

[0025] 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. Example

[0026] Please see Figure 1-4 This utility model provides a technical solution:

[0027] A composite PCB board includes multiple PCB board bodies 1, characterized in that: a connecting component is provided between the multiple PCB board bodies 1, the connecting component includes a first positioning post 3 and a second positioning post 4, the first positioning post 3 and the second positioning post 4 are symmetrically installed on both sides of the PCB board body 1, a positioning pin 5 is fixedly connected to the end of the first positioning post 3 away from the PCB board body 1, a positioning groove 6 matching the positioning pin 5 is opened on the end of the second positioning post 4 away from the PCB board, and a suction member 7 is provided between the second positioning post 4 and the first positioning post 3.

[0028] This composite PCB board consists of multiple PCB board bodies 1, which are connected by a connecting assembly. The connecting assembly includes two positioning posts symmetrically mounted on both sides of the PCB board body 1. These posts are interconnected via positioning pins 5 and positioning slots 6. The engagement of the positioning pins 5 and positioning slots 6 ensures quick and precise alignment between the composite PCB boards, preventing misalignment. A suction device 7 then holds the two positioning posts together for quick fixation. For disassembly and replacement, the two positioning posts can be easily pulled apart. This design does not increase the volume of the composite PCB board through external frames or other structures, resulting in a smaller composite PCB board suitable for more installation spaces.

[0029] Because the above solution enables rapid assembly and disassembly of stacked PCBs, and each PCB body 1 is equipped with connecting components for assembly, any two stacked PCBs can be combined, thus achieving arbitrary combinations of stacked PCBs.

[0030] The suction component 7 includes a first magnetic block 8 and a second magnetic block 9. The first magnetic block 8 is fixedly connected to one end of the first positioning post 3 near the positioning pin 5, and the second magnetic block 9 is fixedly connected to one end of the second positioning post 4 near the positioning groove 6.

[0031] The magnetic locating component 7 consists of two magnetic blocks, one connected to one end of the first positioning post 3 and the other connected to one end of the second positioning post 4. When the positioning pin 5 is inserted into the positioning slot 6, the two magnetic blocks attract each other, thus fixing the PCB board.

[0032] The first magnetic block 8 and the second magnetic block 9 are two electromagnets or one of them is an iron ring. The specific form of the magnetic blocks is further explained here. The attracting component 7 can be two electromagnets or one of them is an iron ring, which increases the specific combination form of the magnetic blocks.

[0033] Another type of attraction component 7 is in which the first magnetic block 8 and the second magnetic block 9 are two electromagnets connected to a power cord. Both the first positioning post 3 and the second positioning post 4 are made of insulating material.

[0034] In a specific application of electromagnetic attraction, if the magnetic blocks are electromagnets, they will be connected via a power cord, and the positioning posts will use insulating materials to ensure safety.

[0035] Furthermore, multiple sets of PCB board bodies 1 are arranged in parallel, and the connecting components position and connect the two sets of PCB board bodies 1. Multiple PCB board bodies 1 can be arranged in parallel, and the connecting components are responsible for their positioning and fixation.

[0036] Furthermore, the first positioning post 3 is a retractable threaded assembly, which includes an inner threaded rod 13 and an outer threaded sleeve 14. The inner threaded rod 13 is fixedly connected to the PCB body, and the outer threaded sleeve 14 is threadedly engaged with the inner threaded rod 13. The inner threaded rod 13 and the outer threaded sleeve 14 can rotate and extend together.

[0037] The first positioning post 3 is designed as a retractable threaded assembly, which can be extended or retracted by rotating the thread, thereby adapting to PCB boards of different thicknesses.

[0038] The PCB board body 1 is provided with a locking assembly, which includes a guide slide 15, and the guide slide 15 is fixedly connected to one side of the PCB board body 1.

[0039] The engaging assembly on the PCB board body 1 includes a guide groove 15, a slide rod 16, and a return spring 17. The slide rod 16 slides within the guide groove 15, and the return spring 17 ensures that the slide rod 16 returns to its initial position when no external force is applied. The return spring 17 is located outside the slide rod 16, thereby bringing the two slide rods 16 closer to each other, and the two slide rods 16 drive the two claws 18 to move closer together.

[0040] The guide slide 15 has two slide rods 16 slidably connected inside. The two ends of the guide slide 15 are respectively fixedly connected to a return spring 17, and the other end of the return spring 17 is fixedly connected to the slide rod 16.

[0041] Furthermore, a pawl 18 is fixedly connected to the end of the slide rod 16 away from the guide groove 15. The pawl 18 is L-shaped.

[0042] The design of the jaw 18 is L-shaped, with a trapezoidal opening on the inside of the jaw slot 20 for clamping the PCB board.

[0043] Furthermore, a slot 20 is provided on the inner side of the claw 18, and the slot 20 is a trapezoidal opening; a chamfer 21 is provided on the inner side of the end of the claw 18 away from the slide bar 16;

[0044] Details of the jaws 18 include a chamfer 21 at one end, increasing the ease of installation and disassembly; and a trapezoidal opening 20, forming a gradient opening design that allows for clamping PCBs of different thicknesses. The two jaws 18 are moved between each other via a slide bar 16, enabling adjustment of the distance between them. This allows for clamping and fixing PCBs of different widths, increasing the possibilities for stacked PCB combinations.

[0045] The working principle of this composite PCB board is to achieve rapid connection and fixation between PCB boards through specially designed connecting components, including positioning posts and engaging components 7, such as magnetic blocks. The positioning posts ensure the positional accuracy of the PCB boards through positioning pins 5 and positioning slots 6, while the magnetic blocks provide a reliable connection through magnetic force. Furthermore, the retractable positioning posts allow for adjustment of the PCB board thickness, while the engaging components provide additional fixation and positioning means. This design aims to simplify the PCB board assembly and disassembly process, reduce maintenance work, and maintain the compactness of the overall structure. By using an electromagnet as the engaging component 7, the connection strength can also be controlled by power, further improving the system's flexibility and adjustability. The composite PCB board designed with the above scheme has a compact structure, occupies little space, and is easy to assemble and disassemble quickly, facilitating arbitrary combinations of composite PCB boards.

[0046] Although specific embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these specific embodiments without departing from the principles and spirit, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A stacked PCB board comprising a plurality of PCB board bodies (1), characterized in that: A plurality of the PCB board body (1) between the setting of the connecting assembly, connecting assembly includes first positioning column (3) and second positioning column (4), first positioning column (3) and second positioning column (4) symmetry installation in PCB board body (1) both sides, first positioning column (3) away from the one end of PCB board fixedly connected with positioning pin (5), the other end of second positioning column (4) away from the PCB is provided with positioning slot (6) matched with positioning pin (5), second positioning column (4) and first positioning column (3) between the setting of suction piece (7).

2. The laminated PCB board of claim 1, wherein: The suction piece (7) includes first magnetic block (8) and second magnetic block (9), first magnetic block (8) is fixedly connected to the one end of first positioning column (3) close to positioning pin (5), second magnetic block (9) is fixedly connected to the one end of second positioning column (4) close to positioning slot (6), first magnetic block (8) and second magnetic block (9) are annular, first magnetic block (8) is sleeved on the outside of positioning pin (5), when positioning pin (5) is inserted into positioning slot (6) inside, first magnetic block (8) and second magnetic block (9) are attracted and fixed between them.

3. The laminated PCB board of claim 2, wherein: First magnetic block (8) and second magnetic block (9) are two electromagnets or one of them is an iron ring.

4. The laminated PCB board of claim 2, wherein: First magnetic block (8) and second magnetic block (9) are two electromagnets, the electromagnet is connected with power line, first positioning column (3) and second positioning column (4) are made of insulating material.

5. The laminated PCB board of claim 1, wherein: A plurality of groups of PCB board body (1) are arranged in parallel, and the connecting assembly positions and connects and fixes two groups of PCB board body (1).

6. The laminated PCB of claim 1, wherein: The first positioning column (3) is a telescopic threaded sleeve, which comprises an inner screw rod (13) and an outer threaded sleeve (14). The inner screw rod (13) is fixedly connected with the PCB body, and the outer threaded sleeve (14) is threadedly connected with the inner screw rod (13). The inner screw rod (13) and the outer threaded sleeve (14) are rotatably telescopic.

7. The laminated PCB of claim 1, wherein: The PCB board body (1) is provided with a clamping assembly, and the clamping assembly comprises a guide sliding groove (15) fixedly connected to one side of the PCB board body (1).

8. The laminated PCB board of claim 7, wherein: The guide sliding groove (15) is slidably connected with two slide rods (16), and the two ends of the guide sliding groove (15) are fixedly connected with reset springs (17), and the other end of the reset spring (17) is fixedly connected with the slide rod (16).

9. The laminated PCB board of claim 8, wherein: The slide rod (16) is fixedly connected with a clamping jaw (18) at the end away from the guide sliding groove (15), and the clamping jaw (18) is L-shaped.

10. The laminated PCB board of claim 9, wherein: The inner side of the clamping jaw (18) is provided with a clamping groove (20), and the clamping groove (20) is provided in a trapezoidal opening; the inner side of the end of the clamping jaw (18) away from the slide rod (16) is provided with a chamfer (21).

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