A circuit board with a positioning post fastening structure

Abstract

This utility model discloses a circuit board with a positioning post fastening structure, including a first circuit board, a second circuit board, and positioning posts. The positioning posts are located between the first and second circuit boards, and are hollow. Buffer sleeves are fitted at the top and bottom of the positioning posts. By placing the positioning posts between the first and second circuit boards, a clear positioning reference is provided for both. During installation, the positioning posts can accurately guide the first and second circuit boards to align precisely, effectively avoiding inaccurate electronic component connections caused by positioning deviations. This high-precision positioning ensures accurate signal transmission between various electronic components on the circuit board, guaranteeing the stable performance of the overall electronic equipment. The insertion and engagement of the positioning rod and the threaded connection of the end caps make the installation and disassembly of the first and second circuit boards simpler and faster.

Description

Technical Field

[0001] This utility model relates to the field of circuit board technology, specifically a circuit board with a positioning post fastening structure. Background Technology

[0002] With the continuous advancement of miniaturization and integration of electronic devices, the efficiency of space utilization within electronic systems is becoming increasingly critical. Numerous complex functions need to be implemented within a limited space, which places extremely high demands on the installation and layout of internal components of electronic devices. Among them, the circuit board, as a key component of electronic devices, directly affects the performance and reliability of the entire electronic device through the rationality and stability of its installation method.

[0003] Currently, in many electronic devices, it is often necessary to stack two or more circuit boards to achieve a compact spatial layout and efficient functional integration. However, traditional circuit board stacking installation methods usually rely on simple slots or edge fitting for positioning and fixing, which makes it difficult to guarantee positioning accuracy. Therefore, we need to propose a circuit board with a positioning post fastening structure. Summary of the Invention

[0004] The purpose of this invention is to provide a circuit board with a positioning post fastening structure. Through the design of mechanical positioning and flexible electrical connection, the assembly efficiency, environmental adaptability and long-term reliability of stacked circuit boards are significantly improved, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A circuit board with a positioning post fastening structure includes: a first circuit board, a second circuit board, and positioning posts; the positioning posts are disposed between the first circuit board and the second circuit board, the positioning posts are hollow, and the top and bottom ends of the positioning posts are respectively fitted with buffer sleeves, the two sets of buffer sleeves abutting against the first circuit board and the second circuit board respectively; a positioning rod is inserted into the inside of the positioning post, the top and bottom ends of the positioning rod respectively penetrate the first circuit board and the second circuit board, and the top and bottom ends of the positioning rod are respectively threaded with end caps; an elastic connection component for electrically connecting the first circuit board and the second circuit board is provided between them.

[0007] Preferably, the first circuit board and the second circuit board are respectively provided with through holes, and the positioning rod is inserted into the inside of the through holes.

[0008] Preferably, it also includes a limiting notch, which is formed inside the through hole, and a protrusion adapted to the limiting notch is fixedly connected to the outer wall of the positioning rod, the protrusion being inserted into the limiting notch.

[0009] Preferably, the elastic connection assembly includes a positioning seat, which is fixedly installed on the top of the first circuit board. The positioning seat is hollow, and a connecting rod is slidably inserted inside the positioning seat. The top end of the connecting rod is connected to the bottom of the second circuit board, and an elastic element is fixedly connected to the bottom end of the connecting rod. The elastic element is fixedly connected to the inner bottom of the positioning seat.

[0010] Preferably, the positioning seat is electrically connected to the internal circuitry of the first circuit board.

[0011] Preferably, the bottom of the second circuit board is provided with a contact corresponding to the connecting rod, and the contact is electrically connected to the internal circuit of the second circuit board.

[0012] Preferably, the top end of the connecting rod is provided with a gold-plated layer, and the gold-plated layer abuts against the bottom of the contact point.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model provides a clear positioning reference for the first and second circuit boards by setting the positioning post between them. During installation, the positioning post can accurately guide the first and second circuit boards to connect, effectively avoiding the problem of inaccurate connection of electronic components due to positioning deviation. This high-precision positioning ensures accurate signal transmission between various electronic components on the circuit board and guarantees the stable performance of the overall electronic equipment. The plug-in cooperation between the positioning rod and the positioning post, as well as the threaded connection of the end cap, makes the installation and disassembly of the first and second circuit boards simpler and faster.

[0015] 2. The buffer sleeves fitted at the top and bottom of the positioning posts provide excellent cushioning and shock absorption. When the electronic device is subjected to external impact, the buffer sleeves can absorb and disperse some of the energy, reducing the impact on the first and second circuit boards and protecting the circuit boards and their electronic components from damage. This buffer design is particularly important for electronic devices that are frequently in motion or operate in harsh environments, such as portable electronic devices and industrial control equipment, and can effectively improve the device's adaptability in complex environments. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the axial side structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the first circuit board, the second circuit board, and the positioning post of this utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the elastic connection component of this utility model;

[0020] Figure 5 This is a schematic diagram of the positioning post and buffer sleeve of this utility model.

[0021] In the diagram: 1. First circuit board; 2. Second circuit board; 3. Positioning post; 4. Buffer sleeve; 5. Positioning rod; 6. End cap; 7. Elastic connection assembly; 701. Positioning seat; 702. Connecting rod; 703. Elastic element; 8. Limiting notch; 9. Protrusion; 10. Contact point; 11. Gold plating layer; 12. Through hole. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1-5 This utility model provides a technical solution:

[0024] A circuit board with a positioning post fastening structure includes: a first circuit board 1, a second circuit board 2 and positioning posts 3. This stacked structure design makes full use of space and realizes the layout of a double-layer circuit board in a limited space, which helps to improve the space utilization rate inside electronic devices and meet the development trend of miniaturization and integration of modern electronic devices.

[0025] The positioning post 3 is located between the first circuit board 1 and the second circuit board 2. The positioning post 3 is hollow. This hollow design not only reduces the weight of the positioning post itself, but also provides space for the insertion of the positioning rod 5. The top and bottom ends of the positioning post 3 are respectively fitted with buffer sleeves 4. The two sets of buffer sleeves 4 abut against the first circuit board 1 and the second circuit board 2 respectively. The buffer sleeves 4 are made of materials with good elasticity and wear resistance, such as rubber or silicone. When the circuit board is impacted by external force, the buffer sleeves 4 can undergo elastic deformation, absorb and disperse part of the impact energy, play a role in buffering and shock absorption, and protect the first circuit board 1 and the second circuit board 2 and their electronic components from damage. For example, in industrial control equipment, strong vibrations may occur during the operation of the equipment. The buffer sleeves 4 can effectively reduce the impact of vibration on the circuit board and improve the stability and reliability of the equipment.

[0026] A positioning rod 5 is inserted into the positioning post 3. The top and bottom ends of the positioning rod 5 pass through the first circuit board 1 and the second circuit board 2, respectively. The top and bottom ends of the positioning rod 5 are threaded with end caps 6. By tightening the end caps 6, the first circuit board 1 and the second circuit board 2 can be firmly fixed on the positioning post 3 to form a stable stacked structure. This fastening method is simple and reliable, and is easy to install and disassemble. When it is necessary to repair or replace the circuit board, the circuit board can be separated simply by loosening the end caps 6, which greatly improves the repair efficiency. For example, in the production line of electronic products, this structure can quickly complete the assembly and disassembly of the circuit board, improving production efficiency. An elastic connection component 7 is provided between the first circuit board 1 and the second circuit board 2 for electrically connecting the two.

[0027] The first circuit board 1 and the second circuit board 2 are respectively provided with through holes 12. The positioning rod 5 is inserted into the inside of the through hole 12. It also includes a limiting notch (foolproof notch) 8, which is opened inside the through hole 12. A protrusion 9 that matches the limiting notch 8 is fixedly connected to the outer wall of the positioning rod 5. The protrusion 9 is inserted into the inside of the limiting notch 8. The size and shape of the through hole 12 are adapted to the positioning rod 5 to ensure that the positioning rod 5 can be smoothly inserted and play a positioning role.

[0028] The elastic connection assembly 7 includes a positioning seat 701, which is fixedly installed on the top of the first circuit board 1. The positioning seat 701 is hollow, and a connecting rod 702 is slidably inserted inside the positioning seat 701. The top end of the connecting rod 702 is connected to the bottom of the second circuit board 2, and an elastic element 703 is fixedly connected to the bottom end of the connecting rod 702. The elastic element 703 is made of insulating material and is fixedly connected to the inner bottom of the positioning seat 701.

[0029] The positioning seat 701 is electrically connected to the internal circuit of the first circuit board 1. When the first circuit board 1 and the second circuit board 2 are subjected to external force and undergo relative displacement, the elastic element 703 can undergo elastic deformation to provide a certain buffering effect, while ensuring that the connecting rod 702 is always connected to the positioning seat 701 to maintain the electrical connection between the first circuit board 1 and the second circuit board 2.

[0030] The bottom of the second circuit board 2 is provided with a contact 10 corresponding to the connecting rod 702. The contact 10 is electrically connected to the internal circuit of the second circuit board 2. The top of the connecting rod 702 is provided with a gold-plated layer 11, which abuts against the bottom of the contact 10. The gold-plated layer 11 has good conductivity and wear resistance, which can reduce contact resistance and improve the stability and reliability of electrical connection. When the first circuit board 1 and the second circuit board 2 are fixed together by the positioning post 3 and the positioning rod 5, the connecting rod 702 contacts the contact 10, realizing the electrical connection between the first circuit board 1 and the second circuit board 2, so that electronic signals can be transmitted between the two circuit boards.

[0031] When installing the circuit board with the positioning post fastening structure, first place the positioning post 3 at the predetermined position between the first circuit board 1 and the second circuit board 2, then insert the positioning rod 5 into the through hole 12 on the first circuit board 1 and the second circuit board 2, while ensuring that the protrusion 9 on the positioning rod 5 is inserted into the limiting notch 8 in the through hole 12. Next, put the buffer sleeve 4 on the top and bottom ends of the positioning post 3 respectively, so that the buffer sleeve 4 abuts against the first circuit board 1 and the second circuit board 2. Finally, tighten the end cap 6 at the top and bottom ends of the positioning rod 5 to firmly fix the first circuit board 1 and the second circuit board 2 together.

[0032] During operation, the elastic connection component 7 serves as an electrical connection. When the first circuit board 1 and the second circuit board 2 are subjected to external force and undergo relative displacement, the connecting rod 702 slides within the positioning seat 701, and the elastic element 703 undergoes elastic deformation, absorbing and dispersing some energy and reducing the impact of external force on the circuit board. At the same time, the gold-plated layer 11 at the top of the connecting rod 702 always maintains contact with the contact point 10 at the bottom of the second circuit board 2, ensuring a stable and reliable electrical connection between the first circuit board 1 and the second circuit board 2, so that electronic signals can be transmitted normally between the two circuit boards. The positioning post 3 and the positioning rod 5 serve as positioning and fastening components, preventing the circuit boards from loosening or shifting during use and ensuring the normal operation of the entire electronic device.

[0033] Although 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 embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wiring board with a fastening structure of a positioning column, characterized by, include: First circuit board (1), second circuit board (2) and positioning post (3); The positioning post (3) is located between the first circuit board (1) and the second circuit board (2). The positioning post (3) is hollow, and the top and bottom ends of the positioning post (3) are respectively fitted with buffer sleeves (4). The two sets of buffer sleeves (4) abut against the first circuit board (1) and the second circuit board (2) respectively. A positioning rod (5) is inserted inside the positioning post (3). The top and bottom ends of the positioning rod (5) pass through the first circuit board (1) and the second circuit board (2) respectively, and the top and bottom ends of the positioning rod (5) are threaded with end caps (6). An elastic connection component (7) for electrically connecting the first circuit board (1) and the second circuit board (2) is provided.

2. The wiring board with a fastening structure of a positioning column according to claim 1, characterized in that: The first circuit board (1) and the second circuit board (2) are respectively provided with through holes (12), and the positioning rod (5) is inserted into the inside of the through hole (12).

3. The wiring board with a fastening structure of a positioning column according to claim 2, wherein: It also includes a limiting notch (8), which is opened inside the through hole (12). A protrusion (9) that matches the limiting notch (8) is fixedly connected to the outer wall of the positioning rod (5). The protrusion (9) is inserted into the inside of the limiting notch (8).

4. The wiring board with a fastening structure of a positioning column according to claim 1, characterized in that: The elastic connection assembly (7) includes a positioning seat (701), which is fixedly installed on the top of the first circuit board (1). The positioning seat (701) is hollow, and a connecting rod (702) is slidably inserted inside the positioning seat (701). The top end of the connecting rod (702) is connected to the bottom of the second circuit board (2), and an elastic element (703) is fixedly connected to the bottom end of the connecting rod (702). The elastic element (703) is fixedly connected to the inner bottom of the positioning seat (701).

5. The wiring board with a fastening structure of a positioning column according to claim 4, wherein: The positioning seat (701) is electrically connected to the internal circuit of the first circuit board (1).

6. The wiring board with a fastening structure of a positioning column according to claim 5, wherein: The bottom of the second circuit board (2) is provided with a contact (10) corresponding to the connecting rod (702), and the contact (10) is electrically connected to the internal circuit of the second circuit board (2).

7. The wiring board with a fastening structure of a positioning column according to claim 6, wherein: The top end of the connecting rod (702) is provided with a gold-plated layer (11), and the gold-plated layer (11) abuts against the bottom of the contact (10).

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