High-precision PCB circuit board

Abstract

The utility model relates to the technical field of electronic equipment, in particular to a high-precision PCB (printed circuit board), which is characterized in that a fastening screw rod is spirally connected to the middle position of the side wall of a support frame, a movable clamping frame is rotatably connected to the inner end of the fastening screw rod, a circuit board main body is arranged on the inner side of the movable clamping frame, and the circuit board main body is provided with a plurality of through holes. According to the utility model, the circuit board main body can be inserted into the movable clamping frame at one side in advance through the arrangement of the limiting groove, the fastening screw rod can rotate through the rotation of the rotating disc, and the movable clamping frame can move towards the inner side under the limiting effect of the limiting rod; furthermore, the circuit board main body can be clamped and subjected to multi-directional limiting treatment under the action of the movable clamping frames on the two sides, meanwhile, the connected edges can be protected through the rubber pads arranged inside, abrasion and pressing damage of the circuit board are avoided, and the circuit board can be disassembled only by reversely rotating the rotating disc; and the circuit board can be quickly disassembled and assembled by a single person, so that the disassembly and assembly convenience of the circuit board is improved.

Description

Technical Field

[0001] This utility model relates to a high-precision PCB circuit board, belonging to the field of electronic equipment technology. Background Technology

[0002] High-precision PCBs are printed circuit boards with high precision and stability. They employ special manufacturing processes and advanced technologies to transmit, connect, and support electronic components in electronic devices. Their characteristics include a higher number of layers, higher line density, smaller apertures, and a larger board thickness to aperture ratio.

[0003] The existing patent number CN219999817U describes a high-precision PCB circuit board device. This device consists of a circuit board body attached to the upper surface of a horizontal plate. A cylinder on a protrusion limits the short rod, and a spring inside the cylinder pushes a circular plate to adhere to the upper surface of the circuit board body. This facilitates the installation of the circuit board body without damaging its internal structure, avoiding inaccurate or poor-quality operation. A screw cap connected to the cylinder prevents the spring inside the cylinder from falling off and facilitates later disassembly and maintenance. However, this device requires manual pulling of the gripping part to move the circular plate. The plate moves upward to allow the circuit board to be installed, but there are four grips, requiring multiple people to work together to install the circuit board, wasting both time and labor. Furthermore, this device places the circuit board against the upper surface of the horizontal plate, causing heat to accumulate at the bottom of the circuit board, which is not conducive to heat dissipation. Moreover, the installation of the circuit board does not take into account the movement of the equipment. When the equipment is running, vibrations will occur, causing the circular plate in this device to bounce continuously, which can easily cause continuous impact on the circuit board and damage the internal circuitry, thus compromising the safe installation and use of the circuit board. Utility Model Content

[0004] The purpose of this invention is to provide a high-precision PCB circuit board to solve the problems mentioned in the background art.

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

[0006] A high-precision PCB circuit board includes a support frame, a mounting plate, and a housing. A fastening screw is spirally connected to the middle of the side wall of the support frame. A movable retaining frame is rotatably connected to the inner end of the fastening screw. The movable retaining frame is slidably connected to the support frame. The circuit board body is located on the inner side of the movable retaining frame. Dampers are fixedly connected to the front and rear sides of the lower end of the support frame. The mounting plate is fixedly connected to the lower end of the dampers. The housing is located at the lower end of the mounting plate. An extrusion plate is slidably connected to the inner side of the mounting plate. A buckle is fixedly connected to the lower side of the outer side of the extrusion plate. The buckle is slidably connected to the housing.

[0007] Furthermore, a limiting groove is provided on the inner side of the movable card frame, and a rubber pad is provided on the inner side of the limiting groove. The rubber pad is fixedly connected to the movable card frame, and the rubber pad is in contact with the circuit board body.

[0008] Furthermore, a turntable is fixedly connected to the outer end of the fastening screw, and there are two fastening screws in total.

[0009] Furthermore, there are two movable card frames, and each movable card frame has a limiting rod fixedly connected to its front and rear sides, with the limiting rod slidably connected to the support frame.

[0010] Furthermore, a fixing rod is slidably connected at the middle position of the extrusion plate, the fixing rod is fixedly connected to the mounting plate, and the surface of the fixing rod is covered with a spring.

[0011] Furthermore, a slot is provided on the inner side of the device housing, and the position and size of the slot correspond to the position and size of the buckle.

[0012] Furthermore, a heat dissipation gap is provided between the circuit board body and the device housing.

[0013] The beneficial effects of this utility model are:

[0014] This invention utilizes a limiting groove to allow the circuit board body to be pre-inserted into a movable retaining frame on one side. Rotation of the turntable causes the fastening screw to rotate, and under the limiting action of the limiting rod, the movable retaining frame moves inward. The movable retaining frames on both sides clamp the circuit board body and provide multi-directional limiting. Simultaneously, internal rubber pads protect the edges of the connection, preventing wear and damage to the circuit board. Disassembly is simple; just reverse the turntable. The assembly and disassembly of the circuit board can be quickly completed by a single person, improving efficiency. The ease of assembly and disassembly of the circuit board is achieved by utilizing the mounting plate and damper to provide overhead support for the support frame, creating a certain heat dissipation gap between the bottom of the installed circuit board and the housing. This facilitates heat dissipation for the circuit board. Simultaneously, the damper buffers the support frame and the main body of the circuit board, preventing direct impact on the circuit board during equipment operation and extending its service life. Furthermore, the compression of the pressing plate causes the buckle to move inward and compresses the spring, allowing the mounting plate to be quickly removed from the housing, thus improving the overall ease of assembly and disassembly of the device. Attached Figure Description

[0015] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the specific embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof.

[0016] Figure 1 This is a front view of a high-precision PCB circuit board according to this utility model;

[0017] Figure 2 This utility model relates to a high-precision PCB circuit board. Figure 1 Schematic diagram of the installation structure at point A;

[0018] Figure 3 This is a cross-sectional view of the mounting structure of a high-precision PCB circuit board, including a support frame, a movable clip frame, and the main body of the circuit board.

[0019] Figure 4 This is a top view of the mounting structure of a fastening screw, movable frame and limiting rod for a high-precision PCB circuit board according to this utility model;

[0020] Figure 5 This is a cross-sectional view of the mounting structure of a high-precision PCB circuit board mounting plate and a device housing according to this utility model.

[0021] The following are the labels in the diagram: 1. Support frame; 2. Fastening screw; 3. Movable retaining frame; 4. Circuit board body; 5. Damper; 6. Mounting plate; 7. Equipment housing; 8. Extrusion plate; 9. Buckle; 10. Limiting groove; 11. Rubber pad; 12. Turntable; 13. Limiting rod; 14. Fixing rod; 15. Spring; 16. Slot. 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 refer to Example 1 Figures 1-5 This utility model provides a technical solution:

[0024] A high-precision PCB circuit board includes a support frame 1, a mounting plate 6, and a housing 7. A fastening screw 2 is spirally connected to the middle of the side wall of the support frame 1. A movable retaining frame 3 is rotatably connected to the inner end of the fastening screw 2. The movable retaining frame 3 is slidably connected to the support frame 1. A circuit board body 4 is located on the inner side of the movable retaining frame 3. A limiting groove 10 is formed on the inner side of the movable retaining frame 3, and a rubber pad 11 is provided on the inner side of the limiting groove 10. The rubber pad 11 is fixedly connected to the movable retaining frame 3 and fits against the circuit board body 4. A turntable 12 is fixedly connected to the outer end of the fastening screw 2. There are two fastening screws 2 and two movable retaining frames 3. Limiting rods 13 are fixedly connected to the front and rear sides of the outer end of the movable retaining frame 3, and the limiting rods 13 are slidably connected to the support frame 1. Next, the circuit board body 4 is inserted into the movable frame 3 on one side in advance by setting the limiting groove 10. The fastening screw 2 can be rotated by rotating the turntable 12, and the movable frame 3 can be moved inward under the limiting action of the limiting rod 13. Thus, the movable frames 3 on both sides can clamp the circuit board body 4 and perform multi-directional limiting treatment. At the same time, the rubber pad 11 inside can protect the edge of the connection to avoid wear and pressure damage to the circuit board. When disassembling, simply rotate the turntable 12 in the opposite direction. The disassembly and assembly of the circuit board can be completed quickly by a single person, which improves the convenience of disassembly and assembly of the circuit board. The movable frame 3 can be installed for circuit board bodies 4 of different widths by adjusting the fastening screw 2.

[0025] Please refer to Example 2 Figure 1 , Figure 2 and Figure 5The difference between this embodiment and Embodiment 1 is that: dampers 5 are fixedly connected to the front and rear sides of the lower end of the support frame 1, and a mounting plate 6 is fixedly connected to the lower end of the damper 5. A device housing 7 is provided at the lower end of the mounting plate 6. A pressing plate 8 is slidably connected to the inner side of the mounting plate 6, and a buckle 9 is fixedly connected to the lower side of the outer side of the pressing plate 8. The buckle 9 is slidably connected to the device housing 7. A fixing rod 14 is slidably connected to the middle position of the pressing plate 8, and the fixing rod 14 is fixedly connected to the mounting plate 6. A spring 15 is covered on the surface of the fixing rod 14. A slot 16 is provided on the inner side of the device housing 7, and the position and size of the slot 16 correspond to the position and size of the buckle 9. A heat dissipation gap is provided between the circuit board body 4 and the equipment housing 7. The mounting plate 6 and the damper 5 can provide overhead support for the support frame 1, so that there is a certain heat dissipation gap between the bottom of the installed circuit board and the housing, which facilitates the heat dissipation of the circuit board. At the same time, the damper 5 can also buffer the support frame 1 and the circuit board body 4, avoiding direct impact on the circuit board during equipment operation, thereby extending the service life of the circuit board. By pressing the pressing plate 8, the buckle 9 can be moved inward and the spring 15 can be compressed, so that the mounting plate 6 can be quickly removed from the housing, improving the overall ease of disassembly and assembly of the device.

[0026] The working principle of this utility model is as follows: During use, the limiting groove 10 allows the circuit board body 4 to be inserted into the movable clamping frame 3 on one side in advance. Rotation of the turntable 12 causes the fastening screw 2 to rotate, and under the limiting action of the limiting rod 13, the movable clamping frame 3 moves inward. Thus, the movable clamping frames 3 on both sides clamp the circuit board body 4 and provide multi-directional limiting. Simultaneously, the internal rubber pad 11 protects the edges of the connection, preventing wear and damage to the circuit board. Disassembly is simple; just reverse the rotation of the turntable 12. The assembly and disassembly of the circuit board can be quickly completed by a single person, greatly improving the convenience of circuit board assembly and disassembly. The movable frame 3 can be used to install circuit board bodies 4 of different widths by adjusting the fastening screw 2. The mounting plate 6 and damper 5 can provide overhead support for the support frame 1, so that there is a certain heat dissipation gap between the bottom of the installed circuit board and the housing, which facilitates the heat dissipation of the circuit board. At the same time, the damper 5 can buffer the support frame 1 and the circuit board body 4 to avoid direct impact on the circuit board during equipment operation, thereby extending the service life of the circuit board. By squeezing the pressing plate 8, the buckle 9 can be moved inward and the spring 15 can be compressed, so that the mounting plate 6 can be quickly removed from the housing, improving the overall ease of disassembly and assembly of the device.

[0027] 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 high-precision PCB circuit board, comprising a support frame (1), a mounting plate (6), and a device housing (7), characterized in that: A fastening screw (2) is spirally connected to the middle position of the side wall of the support frame (1). A movable retaining frame (3) is rotatably connected to the inner end of the fastening screw (2). The movable retaining frame (3) is slidably connected to the support frame (1). A circuit board body (4) is provided on the inner side of the movable retaining frame (3). A damper (5) is fixedly connected to the front and rear sides of the lower end of the support frame (1). A mounting plate (6) is fixedly connected to the lower end of the damper (5). A device housing (7) is provided at the lower end of the mounting plate (6). An extrusion plate (8) is slidably connected to the inner side of the mounting plate (6). A buckle (9) is fixedly connected to the lower side of the outer side of the extrusion plate (8). The buckle (9) is slidably connected to the device housing (7).

2. The high-precision PCB circuit board according to claim 1, characterized in that: The inner side of the movable card frame (3) is provided with a limiting groove (10), and the inner side of the limiting groove (10) is provided with a rubber pad (11). The rubber pad (11) is fixedly connected to the movable card frame (3), and the rubber pad (11) is in contact with the circuit board body (4).

3. A high-precision PCB circuit board according to claim 1, characterized in that: The outer end of the fastening screw (2) is fixedly connected to a turntable (12), and there are two fastening screws (2).

4. A high-precision PCB circuit board according to claim 1, characterized in that: There are two movable card frames (3). The front and rear sides of the outer end of each movable card frame (3) are fixedly connected to limit rods (13). The limit rods (13) are slidably connected to the support frame (1).

5. A high-precision PCB circuit board according to claim 1, characterized in that: A fixing rod (14) is slidably connected at the middle position of the extrusion plate (8). The fixing rod (14) is fixedly connected to the mounting plate (6). The surface of the fixing rod (14) is covered with a spring (15).

6. A high-precision PCB circuit board according to claim 1, characterized in that: The inner side of the device housing (7) is provided with a slot (16), and the position and size of the slot (16) correspond to the position and size of the buckle (9).

7. A high-precision PCB circuit board according to claim 1, characterized in that: A heat dissipation gap is provided between the circuit board body (4) and the equipment housing (7).

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