Double-sided circuit board convenient to disassemble, assemble and maintain

The L-shaped frame structure design solves the problems of difficult disassembly and assembly and damage during maintenance of traditional double-sided circuit boards, enabling rapid disassembly and positioning, and improving maintenance efficiency and mechanical strength.

CN224290160UActive Publication Date: 2026-05-26ZHEJIANG UNIV OF TECH

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG UNIV OF TECH
Filing Date
2025-06-05
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Traditional double-sided circuit boards are difficult to repair, time-consuming and labor-intensive to disassemble and assemble, easily damage surrounding components, and are difficult to test and locate faults, resulting in reduced mechanical strength.

Method used

It adopts an L-shaped frame structure, including a telescopic mechanism, a positioning mechanism, and a support assembly. It utilizes components such as telescopic rods, limit plates, magnetic plates, and positioning pins to achieve quick positioning and disassembly. The rotating plate and the lifting plate provide support to prevent breakage, and carbon fiber material is used to improve durability.

Benefits of technology

It enables rapid disassembly and positioning, improves maintenance speed, reduces component damage, and enhances the mechanical strength and service life of circuit boards.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224290160U_ABST
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Abstract

The utility model belongs to the technical field of double-sided circuit boards, and particularly relates to a double-sided circuit board convenient to disassemble, assemble and maintain, which comprises an L-shaped frame. The number of the L-shaped frames is four, the four L-shaped frames are annularly arranged, the inner wall of each L-shaped frame is provided with a telescopic mechanism, the bottom of each L-shaped frame is provided with a positioning mechanism, and the inner wall of each L-shaped frame is movably provided with a double-sided circuit board body; supporting assemblies are arranged on the two sides, away from the magnetic suction plate, of the bottom of the L-shaped frame. Through the arrangement of a telescopic long rod, a limiting plate block, a circular notch, a groove, a magnetic suction plate and a positioning pin, the telescopic long rod can stably slide on the inner wall of an L-shaped frame through the arrangement of the circular notch, and the L-shaped frame can be freely adjusted according to double-sided circuit board bodies of different sizes through the cooperative use of the telescopic long rod and the limiting plate block; and meanwhile, angle deviation among the four sets of L-shaped frames can be prevented, and it is ensured that the L-shaped frames can clamp and fix different plates.
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Description

Technical Field

[0001] This utility model belongs to the field of double-sided circuit board technology, specifically a double-sided circuit board that is easy to disassemble and maintain. Background Technology

[0002] In the field of electronic equipment, double-sided circuit boards (PCBs) effectively improve wiring density and integration due to their ability to run circuitry on both sides, and are widely used in communication equipment, industrial control, and consumer electronics. Traditional PCBs typically use soldering to fix components to the board, with the circuit layers formed by etching copper foil and covering it with insulating material. When a PCB malfunctions, repair personnel need to use tools such as soldering irons to disassemble and replace the faulty components. This process is not only time-consuming and labor-intensive, but also prone to damaging surrounding components and circuitry due to high temperatures.

[0003] Furthermore, the circuitry on both sides of a double-sided circuit board is interconnected. If a short circuit or open circuit occurs within the internal circuitry, detecting and locating the fault is extremely difficult, often requiring specialized testing equipment for layer-by-layer troubleshooting. Moreover, due to the compact layout of components on the circuit board, limited operating space during disassembly and assembly can easily lead to components being scratched or falling off. Repeated disassembly and assembly can also reduce the mechanical strength of the circuit board, affecting its overall performance and lifespan.

[0004] Therefore, this utility model provides a double-sided circuit board that is easy to disassemble and maintain. Utility Model Content

[0005] To overcome the shortcomings of existing technologies and solve at least one of the problems mentioned in the background art, a double-sided circuit board that is easy to disassemble and maintain is proposed.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: A double-sided circuit board that is easy to disassemble and maintain, comprising an L-shaped frame; four sets of L-shaped frames are arranged in a ring; a telescopic mechanism is provided on the inner wall of the L-shaped frame; a positioning mechanism is provided at the bottom of the L-shaped frame; a double-sided circuit board body is movably mounted on the inner wall of the L-shaped frame; support components are provided on both sides of the bottom of the L-shaped frame away from the magnetic suction plate; the telescopic mechanism includes a telescopic rod, a limiting plate, and a circular slot, the circular slot being... On both sides of the inner wall of the L-shaped frame, four sets of telescopic rods are provided. The four sets of telescopic rods are slidably installed in the circular slots opened on both sides of the four sets of L-shaped frames. The two ends of the telescopic rods are fixedly installed with the limiting plates. The opening of the circular slots allows the telescopic rods to slide stably on the inner wall of the L-shaped frame. The cooperation between the telescopic rods and the limiting plates allows the L-shaped frame to be arbitrarily adjusted according to the double-sided circuit board body of different sizes. At the same time, it can also prevent angular displacement between the four sets of L-shaped frames, ensuring that the L-shaped frame can clamp and fix different plates.

[0007] Preferably, the positioning mechanism includes a groove, a magnetic plate, and a positioning pin. The groove is formed on both sides of the bottom of the L-shaped frame. The magnetic plate is magnetically attracted to the bottom of the L-shaped frame through the groove. The top of the magnetic plate on the side away from the L-shaped frame is fixedly installed with the positioning pin. The double-sided circuit board body is located on the surface of the positioning pin. In this solution, the combined use of the groove, magnetic plate, and positioning pin can quickly position the double-sided circuit board body through the positioning holes on the surface of the double-sided circuit board body, thereby improving the installation speed and facilitating disassembly, ensuring that the maintenance speed can be improved.

[0008] Preferably, the support assembly includes a rotating plate and a lifting plate. Two sets of rotating plates are provided, and the two sets of rotating plates are rotatably installed on both sides of the bottom of the L-shaped frame away from the magnetic plate. The side of the rotating plate away from the L-shaped frame is rotatably installed with the lifting plate. In this solution, the cooperation between the rotating plate and the lifting plate can provide support for the middle of the double-sided circuit board body during user maintenance, preventing it from breaking due to the center being empty during maintenance, and ensuring that the double-sided circuit board body has sufficient support and maintenance space.

[0009] Preferably, the inner wall of the L-shaped frame is provided with a slot. In this design, the slot can facilitate the L-shaped frame to be quickly aligned with the double-sided circuit board body, and at the same time, it can also enable the L-shaped frame to clamp and fix boards of different shapes, thereby improving the practicality of the L-shaped frame.

[0010] Preferably, a memory foam is fixedly installed on the side of the lifting plate away from the rotating plate. In this solution, the memory foam can prevent the lifting plate from damaging the double-sided circuit board body when providing support. The memory foam can also isolate the friction between the lifting plate and the double-sided circuit board body, preventing the circuit on the bottom of the double-sided circuit board body from malfunctioning during maintenance.

[0011] Preferably, the L-shaped frame is made of carbon fiber. Carbon fiber has the advantages of being lightweight, high-strength, and corrosion-resistant, which can better fit the present invention, prevent the L-shaped frame from rusting and damaging the double-sided circuit board body. At the same time, the lighter weight makes it easy for users to flip the L-shaped frame, and it can also provide protection for the double-sided circuit board body.

[0012] The beneficial effects of this utility model are as follows:

[0013] 1. The present invention provides a double-sided circuit board that is easy to disassemble and maintain. Through the arrangement of a telescopic rod, a limiting plate, a circular slot, a groove, a magnetic plate, and a positioning pin, the circular slot allows the telescopic rod to slide stably on the inner wall of an L-shaped frame. The cooperation between the telescopic rod and the limiting plate allows the L-shaped frame to be adjusted arbitrarily according to the size of the double-sided circuit board body, while also preventing angular misalignment between the four sets of L-shaped frames. This ensures that the L-shaped frame can clamp and fix different boards. The cooperation of the groove, magnetic plate, and positioning pin allows for quick positioning through the positioning holes on the surface of the double-sided circuit board body, thereby improving installation speed and facilitating disassembly, ensuring faster maintenance.

[0014] 2. The double-sided circuit board of this utility model, which is easy to disassemble and maintain, provides support for the middle part of the double-sided circuit board body during maintenance by means of a rotating plate and a lifting plate. This prevents the circuit board from breaking due to a hollow center, and ensures that the double-sided circuit board body has sufficient support and maintenance space. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings.

[0016] Figure 1 This is a front perspective view of the present invention;

[0017] Figure 2 This is a partial structural diagram of the present invention;

[0018] Figure 3 This is a partial half-sectional view of the present invention;

[0019] Figure 4 This is a bottom-view structural diagram of the present invention;

[0020] Figure 5 yes Figure 2 Enlarged view of a portion of point A in the middle;

[0021] Figure 6 yes Figure 2 Enlarged view of a portion of point A in the middle.

[0022] Legend:

[0023] 1. L-shaped frame; 2. Telescopic mechanism; 21. Telescopic rod; 22. Limiting plate; 23. Circular slot; 3. Positioning mechanism; 31. Groove; 32. Magnetic plate; 33. Positioning pin; 4. Support assembly; 41. Rotating plate; 42. Lifting plate; 50. Slot; 6. Double-sided circuit board body; 70. Memory foam. Detailed Implementation

[0024] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0025] Specific implementation examples are given below.

[0026] like Figures 1 to 6As shown in the embodiment of this utility model, a double-sided circuit board that is easy to disassemble and maintain includes an L-shaped frame 1; four sets of L-shaped frames 1 are arranged in a ring; a telescopic mechanism 2 is provided on the inner wall of the L-shaped frame 1; a positioning mechanism 3 is provided on the bottom of the L-shaped frame 1; a double-sided circuit board body 6 is movably installed on the inner wall of the L-shaped frame 1; support components 4 are provided on both sides of the bottom of the L-shaped frame 1 away from the magnetic suction plate 32; the telescopic mechanism 2 includes a telescopic rod 21, a limiting plate 22, and a circular slot 23; the circular slot 23 is opened on both sides of the inner wall of the L-shaped frame 1; four sets of telescopic rods 21 are provided; the four sets of telescopic rods 21 are slidably installed in the circular slots 23 opened on both sides of the four sets of L-shaped frames 1; the two ends of the telescopic rods 21 are fixedly installed with the limiting plate 22. The positioning mechanism 3 includes a groove 31, a magnetic plate 32, and a positioning pin 33. The groove 31 is opened on both sides of the bottom of the L-shaped frame 1. The magnetic plate 32 is magnetically attracted to the bottom of the L-shaped frame 1 through the groove 31. The top of the magnetic plate 32 on the side away from the L-shaped frame 1 is fixedly installed with the positioning pin 33. The double-sided circuit board body 6 is located on the surface of the positioning pin 33. The support component 4 includes a rotating plate 41 and a lifting plate 42. Two sets of rotating plates 41 are provided. The two sets of rotating plates 41 are rotatably installed on both sides of the bottom of the L-shaped frame 1 away from the magnetic plate 32. The side of the rotating plate 41 away from the L-shaped frame 1 is rotatably installed with the lifting plate 42. The inner wall of the L-shaped frame 1 is provided with a slot 50. The side of the lifting plate 42 away from the rotating plate 41 is fixedly installed with memory foam 70. The L-shaped frame 1 is made of carbon fiber.

[0027] like Figures 1 to 6As shown, the circular slot 23 allows the telescopic rod 21 to slide stably on the inner wall of the L-shaped frame 1. The cooperation between the telescopic rod 21 and the limiting plate 22 allows the L-shaped frame 1 to be adjusted arbitrarily according to the different sizes of the double-sided circuit board body 6, while also preventing angular displacement between the four sets of L-shaped frames 1, ensuring that the L-shaped frame 1 can clamp and fix different boards. The cooperation of the groove 31, magnetic plate 32 and positioning pin 33 allows for quick positioning of the double-sided circuit board body 6 through the positioning holes on the surface, thereby improving the installation speed and facilitating disassembly, ensuring that the repair speed can be improved. The cooperation of the rotating plate 41 and the lifting plate 42 provides support for the middle of the double-sided circuit board body 6 during user repair, preventing it from breaking due to the center being hollow during repair, ensuring that the double-sided circuit board body 6 can be... With sufficient support and maintenance space, the slot 50 allows for easy and quick alignment of the L-shaped frame 1 with the double-sided circuit board body 6. It also enables the L-shaped frame 1 to clamp and fix boards of different shapes, improving its practicality. The memory foam 70 prevents damage to the double-sided circuit board body 6 when the lifting plate 42 provides support. The memory foam 70 also isolates the friction between the lifting plate 42 and the double-sided circuit board body 6, preventing circuit malfunctions on the bottom surface of the double-sided circuit board body 6 during maintenance. The carbon fiber material, with its lightweight, high strength, and corrosion resistance, better fits this invention, preventing the L-shaped frame 1 from rusting and damaging the double-sided circuit board body 6. Its lighter weight also allows for easy flipping of the L-shaped frame 1 and provides protection for the double-sided circuit board body 6.

[0028] Working principle: During operation, first place the L-shaped frame 1 on a flat surface. Then, the user pulls the four sets of L-shaped frames 1 to adjust the gap between them. Next, the user places the double-sided circuit board body 6 on the inner wall of the L-shaped frame 1 and aligns it with the slot 50. Then, the user retracts the four sets of L-shaped frames 1 so that they clamp the double-sided circuit board body 6 through the slot 50. At this time, the user sequentially attaches the four sets of magnetic plates 32 into the grooves 31 and aligns the positioning pins 33 with the positioning holes of the double-sided circuit board body 6. Then, the user rotates the rotating plate 41 to rotate in the opposite direction. Then, the user rotates the lifting plate 42 to keep it vertical and lifts the middle of the double-sided circuit board body 6 with the memory foam 70. At this time, the user can disassemble and maintain the double-sided circuit board body 6. After one side is maintained, the user only needs to flip the L-shaped frame 1 over to assemble and repair the other side of the double-sided circuit board body 6. It is very convenient. After the repair is completed, the double-sided circuit board body 6 can be removed by following the above steps.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A double-sided circuit board that is easy to disassemble and maintain, comprising an L-shaped frame (1); characterized in that: The L-shaped frame (1) is provided in four sets, and the four sets of L-shaped frames (1) are arranged in a ring. The inner wall of the L-shaped frame (1) is provided with a telescopic mechanism (2), the bottom of the L-shaped frame (1) is provided with a positioning mechanism (3), and a double-sided circuit board body (6) is movably installed on the inner wall of the L-shaped frame (1). The telescopic mechanism (2) includes a telescopic rod (21), a limiting plate (22), and a circular slot (23). The circular slot (23) is opened on both sides of the inner wall of the L-shaped frame (1). There are four sets of telescopic rods (21). The four sets of telescopic rods (21) are slidably installed in the circular slots (23) opened on both sides of the four sets of L-shaped frames (1). The two ends of the telescopic rods (21) are fixedly installed with the limiting plate (22). The positioning mechanism (3) includes a groove (31), a magnetic plate (32) and a positioning pin (33). The groove (31) is opened on both sides of the bottom of the L-shaped frame (1). The magnetic plate (32) is magnetically attracted to the bottom of the L-shaped frame (1) through the opening of the groove (31). The top of the magnetic plate (32) on the side away from the L-shaped frame (1) is fixedly installed with the positioning pin (33). The double-sided circuit board body (6) is located on the surface of the positioning pin (33).

2. The double-sided circuit board for easy disassembly and maintenance according to claim 1, characterized in that: The bottom of the L-shaped frame (1) is provided with support components (4) on both sides away from the magnetic plate (32).

3. A double-sided circuit board that is easy to disassemble and maintain according to claim 2, characterized in that: The support assembly (4) includes a rotating plate (41) and a lifting plate (42). The rotating plate (41) is provided in two sets. The two sets of rotating plates (41) are rotatably installed on both sides of the bottom of the L-shaped frame (1) away from the magnetic suction plate (32). The side of the rotating plate (41) away from the L-shaped frame (1) is rotatably installed with the lifting plate (42).

4. A double-sided circuit board that is easy to disassemble and maintain according to claim 3, characterized in that: The inner wall of the L-shaped frame (1) is provided with a slot (50).

5. A double-sided circuit board that is easy to disassemble and maintain according to claim 4, characterized in that: Memory foam (70) is fixedly installed on the side of the lifting plate (42) away from the rotating plate (41).

6. A double-sided circuit board that is easy to disassemble and maintain according to claim 5, characterized in that: The L-shaped frame (1) is made of carbon fiber.