Rapidly-assembled printed circuit board

Abstract

The utility model relates to a quickly assembled printed circuit board, which comprises a circuit board body, a plurality of components are mounted at the top of the circuit board body, mounting holes are formed in four corners of the top of the circuit board body, and limiting assemblies are arranged at the upper ends and the lower ends of the interiors of the mounting holes; according to the utility model, a plurality of limiting rings can be arranged at the upper and lower positions of the plurality of mounting holes on the surface of the circuit board body, so that the bolts cannot deviate when penetrating through the mounting holes, and the mounting holes can be arranged on the surface of the circuit board body, so that the bolts can be prevented from deviating when penetrating through the mounting holes. The supporting battens are arranged among the multiple limiting rings, the four edges of the circuit board body can be supported through the supporting battens, so that the situation that the circuit board body deforms in the using process is avoided, meanwhile, the L-shaped protection plates are arranged on the surfaces of the supporting battens, the supporting battens can be clamped with the four edges of the circuit board body through the L-shaped protection plates, and therefore the circuit board body can be protected from being damaged. Therefore, the four edges of the circuit board body are protected.

Description

Technical Field

[0001] This utility model relates to the field of printed circuit boards, specifically a printed circuit board for rapid assembly. Background Technology

[0002] When printed circuit boards are assembled onto electronic devices, they need to be secured with screws. However, when the assembly position is tilted or vertical, the mounting holes between the printed circuit board and the electronic device are prone to misalignment after alignment, which can easily cause screws to fall out and hinder the rapid assembly of the printed circuit board.

[0003] According to the published patent 202322727288.X, a rapid assembly printed circuit board includes a circuit board body. Several fixing rings are embedded in the circuit board body. An assembly adhesive layer is embedded in the inner wall of each fixing ring. A film is adhered to the upper surface of each fixing ring, and an annular film is adhered to the lower surface of each fixing ring. A connecting film is fixed between the film and the annular film. During installation, after the mounting holes of the printed circuit board and the electronic device are aligned, screws are inserted into the fixing rings on the circuit board body and the mounting holes of the electronic device. The screws are then limited and fixed by the assembly adhesive layer or rubber rings. In this case, the screws are prevented from easily falling off due to the printed circuit board and electronic device being installed in an inclined or vertical position, thus facilitating rapid assembly of the printed circuit board.

[0004] However, in practice, traditional quick-assembly printed circuit boards (PCBs) often suffer from uneven stress distribution during assembly due to the difficulty of simultaneously tightening all bolts. This can lead to deformation or even damage, especially in high-precision applications. Furthermore, the widely used rubber ring restraint method exhibits significant limitations when dealing with bolts of different sizes. While rubber rings are designed to limit axial movement of bolts through elastic deformation, they provide insufficient radial restraint when the bolt diameter is smaller than the optimal fit size, failing to effectively prevent bolt tilting during installation. This tilting not only affects assembly accuracy but can also exacerbate stress concentration on the PCB, further increasing the risk of damage. Therefore, new technical solutions are needed to address these issues. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of existing technologies, adapt to practical needs, and provide a rapid assembly printed circuit board (PCB). This addresses the problem that current rapid assembly PCBs often suffer from uneven stress distribution during assembly due to the difficulty of simultaneously tightening all bolts, potentially leading to deformation or even damage, especially in high-precision applications. Furthermore, the widely used rubber ring restraint method exhibits significant limitations when dealing with bolts of different sizes. While rubber rings are designed to limit axial movement of bolts through elastic deformation, when the bolt diameter is smaller than the optimal fit size of the rubber ring, the radial restraint provided is insufficient to effectively prevent bolt tilting during installation. This tilting not only affects assembly accuracy but may also exacerbate stress concentration on the PCB, further increasing the risk of damage.

[0006] To achieve the purpose of this utility model, the technical solution adopted by this utility model is as follows: design a quick-assembly printed circuit board, including a circuit board body, multiple components are mounted on the top of the circuit board body, mounting holes are provided at the four corners of the top of the circuit board body, and limit components are provided at the upper and lower ends of the multiple mounting holes.

[0007] The mounting hole has grooves on both sides, and a snap-fit ​​component is provided inside the groove to snap the bolt that extends into the mounting hole.

[0008] Preferably, the limiting component includes an insert ring inserted into the upper and lower ends of the mounting hole, a limiting ring connected to one end of the insert ring, and a support strip fixed between the multiple limiting rings.

[0009] Preferably, an L-shaped protective plate is fixed to one side of each of the multiple support strips, and the multiple L-shaped protective plates are snapped into the four sides of the circuit board body.

[0010] Preferably, the snap-fit ​​assembly is a telescopic member installed in the groove, and the telescopic member includes a first fixed cylinder and a second fixed cylinder that are nested together.

[0011] Preferably, a movable disk is fixed at one end of the second fixed cylinder located inside the first fixed cylinder, and a spring is fixed at the end of the movable disk away from the second fixed cylinder.

[0012] Preferably, an arc-shaped clamping plate is fixed to the end of the second fixed cylinder away from the moving disk, and the surface of the arc-shaped clamping plate is threaded.

[0013] Preferably, the threads on the surface of the arc-shaped plate match the bolts that extend into the mounting holes.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. This utility model, through the combination of insertion rings, limiting rings, and support plates, not only allows for multiple limiting rings to be set above and below multiple mounting holes on the surface of the circuit board, preventing bolts from shifting when passing through the mounting holes, but also provides support plates between the limiting rings. These support plates support the four sides of the circuit board, preventing deformation during use. Furthermore, an L-shaped protective plate is provided on the surface of the support plate, which engages with the four sides of the circuit board to protect these sides. This solves the technical problem of traditional quick-assembly printed circuit boards, where the simultaneous tightening of all bolts is difficult in practice, often leading to uneven stress distribution during assembly and potentially causing deformation or even damage.

[0016] 2. This utility model, through the combination of a fixed cylinder, an arc-shaped clamping plate, and threads, not only utilizes the spring force within the first fixed cylinder to drive the arc-shaped clamping plate to limit the bolt inserted into the mounting hole, but also, the threads on the surface of the arc-shaped clamping plate further enhance the bolt clamping effect by engaging and limiting the bolt during clamping. This solves the significant limitations of traditional rubber ring clamping methods when dealing with bolts of different sizes. The rubber ring is designed to limit the axial movement of the bolt through its elastic deformation. However, when the bolt diameter is smaller than the optimal fit size of the rubber ring, the radial constraint force provided by the rubber ring is insufficient, failing to effectively prevent the bolt from tilting during installation. This tilting not only affects assembly accuracy but may also exacerbate stress concentration on the PCB, further increasing the risk of damage. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the mounting hole of this utility model;

[0019] Figure 3 This is a schematic diagram of the arc-shaped card plate structure of this utility model.

[0020] In the diagram: 1. Circuit board body; 101. Mounting hole; 102. Component; 2. Limiting ring; 201. Support strip; 202. Insert ring; 203. L-shaped protective plate; 3. First fixing cylinder; 301. Spring; 302. Moving disk; 303. Second fixing cylinder; 304. Arc-shaped clamping plate; 305. Groove; 306. Thread. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0022] Example 1: A rapid-assembly printed circuit board, see [link to example]. Figures 1 to 3 The circuit board includes a circuit board body 1. Multiple components 102 are mounted on the top of the circuit board body 1. Mounting holes 101 are provided at each of the four corners of the top of the circuit board body 1. Limiting components are provided at both the top and bottom ends of the mounting holes 101. Grooves 305 are formed on both sides of the inside of each mounting hole 101. A snap-fit ​​component is provided inside the groove 305 to snap the bolts inserted into the mounting holes 101. Multiple support plates 201 are first connected between the multiple limiting rings 2. After the connection is completed, the insertion rings 202 at one end of each limiting ring 2 are inserted into the mounting holes 101 on the surface of the circuit board body 1 to limit and fix the multiple limiting rings 2. The support strip 201 supports the four sides of the circuit board body 1, thus preventing deformation of the circuit board body 1 during use. At the same time, an L-shaped protective plate 203 is provided on the surface of the support strip 201. The L-shaped protective plate 203 can engage with the four sides of the circuit board body 1 to protect the four sides of the circuit board body 1. This solves the technical problem that in traditional quick-assembly printed circuit boards, it is difficult to tighten all bolts at the same time in actual operation. This often leads to uneven stress distribution on the PCB during assembly, which may cause deformation or even damage.

[0023] For details, see Figure 1 and Figure 2 The limiting component includes an insert ring 202 inserted into the upper and lower ends of the mounting hole 101, a limiting ring 2 connected to one end of the insert ring 202, and a support strip 201 fixed between multiple limiting rings 2.

[0024] Further, see Figure 1 Each of the multiple support plates 201 has an L-shaped protective plate 203 fixed on one side, and the multiple L-shaped protective plates 203 are snapped into the four sides of the circuit board body 1.

[0025] It is worth noting that, see Figure 2 The snap-fit ​​assembly is a telescopic component installed in the groove 305. The telescopic component includes a first fixed cylinder 3 and a second fixed cylinder 303 that are nested together.

[0026] It is worth noting that, see Figure 2The second fixed cylinder 303 is located inside the first fixed cylinder 3, and a movable disk 302 is fixed at one end. A spring 301 is fixed at the other end of the movable disk 302 away from the second fixed cylinder 303. When the bolt is inserted into the mounting hole 101, the bolt passes between the two arc-shaped clamping plates 304 inside the mounting hole 101 and abuts against the two arc-shaped clamping plates 304. The arc-shaped clamping plates 304 will drive the second fixed cylinder 303 to move. The second fixed cylinder 303 will abut against the bolt through the elastic force of the spring 301, thereby limiting the bolts of different sizes. Since the arc-shaped clamping plate 304 has a thread 306 on its surface, the bolt can be clamped and limited through the thread 306 during the bolt clamping process, which improves the bolt limiting effect and does not affect the movement of the bolt. When the bolt rotates, it can move through the thread 306, which solves the obvious limitation of the rubber ring limiting method when dealing with bolts of different specifications. The original design intent of rubber rings was to restrict the axial movement of bolts through their elastic deformation. However, when the bolt diameter is smaller than the optimal fit size of the rubber ring, the radial restraint force provided by the rubber ring is insufficient, failing to effectively prevent the bolt from tilting during installation. This tilting not only affects the accuracy of assembly but may also exacerbate stress concentration on the PCB, further increasing the risk of damage.

[0027] It is worth mentioning that, see Figure 3 The second fixed cylinder 303 is fixed with an arc-shaped clamping plate 304 at one end away from the moving disk 302. The surface of the arc-shaped clamping plate 304 is provided with threads 306.

[0028] It is worth emphasizing that, see Figure 3 The threads 306 on the surface of the arc-shaped plate 304 match the bolts that extend into the mounting hole 101.

[0029] When using a quick-assembly printed circuit board, multiple support plates 201 are first connected between multiple limiting rings 2. After the connection is completed, the insertion rings 202 at one end of the multiple limiting rings 2 are inserted into the mounting holes 101 on the surface of the circuit board body 1 to limit and fix the multiple limiting rings 2. The support plates 201 can support the four sides of the circuit board body 1, thereby preventing the circuit board body 1 from deforming during use. At the same time, an L-shaped protective plate 203 is provided on the surface of the support plate 201, which can engage with the four sides of the circuit board body 1 to protect the four sides of the circuit board body 1. When the bolt is inserted into the mounting hole 101, it passes between the two arc-shaped clamping plates 304 inside the mounting hole 101 and abuts against the two arc-shaped clamping plates 304. The arc-shaped clamping plates 304 drive the second fixing cylinder 303 to move. The second fixing cylinder 303, under the elastic force of the spring 301, abuts against the bolt, thereby limiting the bolt of different sizes. Since the arc-shaped clamping plate 304 has a thread 306 on its surface, the bolt can be clamped and limited by the thread 306 during the bolt clamping process, which improves the bolt limiting effect and does not affect the movement of the bolt. When the bolt rotates, it can move through the thread 306.

[0030] In addition, all components designed in this utility model are general standard parts or components known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods. Those skilled in the art can fully implement them, so there is no need to elaborate. The content protected by this utility model does not involve improvements to the internal structure and method.

[0031] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A quick assembly printed circuit board comprising a circuit board body (1) having a plurality of components (102) mounted on the top portion of the circuit board body (1), characterized in that, The circuit board body (1) has mounting holes (101) at the four corners of its top, and limit components are provided at the upper and lower ends of the mounting holes (101); The mounting hole (101) has grooves (305) on both sides inside, and a snap-fit ​​component is provided inside the groove (305) to snap the bolts that extend into the mounting hole (101).

2. A quick-mount printed circuit board as claimed in claim 1, characterized in that, The limiting component includes a plug ring (202) inserted into the upper and lower ends of the mounting hole (101), a limiting ring (2) connected to one end of the plug ring (202), and a support plate (201) fixed between multiple limiting rings (2).

3. A quick-mount printed circuit board as claimed in claim 2, characterized in that, Each of the multiple support strips (201) has an L-shaped protective plate (203) fixed on one side, and the multiple L-shaped protective plates (203) are engaged with the four sides of the circuit board body (1).

4. A quick-mount printed circuit board as claimed in claim 1, wherein, The snap-fit ​​assembly is a telescopic component installed in the groove (305), and the telescopic component includes a first fixed cylinder (3) and a second fixed cylinder (303) that are nested together.

5. A quick-mount printed circuit board as claimed in claim 4, characterized in that, The second fixed cylinder (303) has a movable disk (302) fixed at one end inside the first fixed cylinder (3), and a spring (301) is fixed at the other end of the movable disk (302) away from the second fixed cylinder (303).

6. A quick-mount printed circuit board as claimed in claim 4, wherein, The second fixed cylinder (303) is fixed with an arc-shaped clamping plate (304) at one end away from the moving disk (302), and the surface of the arc-shaped clamping plate (304) is provided with threads (306).

7. A quick-mount printed circuit board as claimed in claim 6, characterized in that, The threads (306) on the surface of the arc-shaped plate (304) match the bolts that extend into the mounting holes (101).

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