PCB circuit board

Abstract

This utility model discloses a PCB circuit board, belonging to the field of circuit board technology. Its key technical features include a substrate body, on the bottom surface of which several first fixing shells are uniformly fixedly connected by bolts. Each first fixing shell has two symmetrically fixedly connected limiting grooves on its inner wall. Each limiting groove has a slider slidably connected inside. Through the sliding positioning plate and rotatable design, this PCB circuit board can adapt to different installation scenarios and meet diverse layout requirements within the chassis. The cooperation between the slider and the limiting groove, combined with a locking mechanism using pins, makes the extension, retraction, and angle adjustment of the positioning plate more convenient, significantly improving installation efficiency. By adopting a separate positioning structure, direct contact between the bolts and the substrate body is avoided, preventing damage to the substrate due to mechanical stress or friction during installation. The elastic locking mechanism of the locking block and the locking groove ensures that the slider is automatically fixed after movement or rotation, preventing accidental displacement of the positioning plate.

Description

Technical Field

[0001] This utility model belongs to the field of circuit board technology, specifically relating to PCB circuit boards. Background Technology

[0002] A PCB, or printed circuit board, is a provider of electrical connections for electronic components. Modern circuit boards primarily consist of circuitry and a schematic. The circuitry serves as the means of conduction between components. In the design, a large copper area is separately designed as a ground and power layer. The circuitry and schematic are fabricated simultaneously, using an insulating board as the substrate, cut to a specific size. It has at least one conductive pattern and holes (such as component holes, mounting holes, and metallized holes) to replace the traditional chassis for mounting electronic components and to enable interconnection between them. Because this type of board is manufactured using electronic printing techniques, it is called a "printed" circuit board. The common term "printed circuit board" is inaccurate, as printed circuit boards do not contain "printed components" but only wiring.

[0003] A search revealed Chinese patent CN219042064U, which discloses a PCB circuit board including a substrate. The substrate has a ground wire, and at least one side of the ground wire has a transmission line group. The transmission line group includes a first transmission line and a second transmission line. However, existing circuit boards are generally installed by drilling positioning holes in the substrate and using bolts to install the substrate. However, it is not easy for operators to ensure that the substrate is not damaged due to excessive force during installation. Utility Model Content

[0004] The purpose of this invention is to provide a 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: a PCB circuit board, including a substrate body, the bottom surface of the substrate body is uniformly fixedly connected with a plurality of first fixing shells by bolts, the inner wall of each first fixing shell is symmetrically fixedly connected with two limiting grooves, the interior of each limiting groove is slidably connected with a slider, the interior of the first fixing shell is provided with a positioning plate, the surface of the positioning plate is provided with mounting holes, and the positioning plate is slidably connected to the limiting groove through the slider.

[0006] Preferably, a second fixed shell is fixedly connected to the surface of the first fixed shell, and a pin is slidably connected inside the second fixed shell. The surface of the positioning plate is provided with insertion holes at positions corresponding to the pins. The pin passes through the surface of the first fixed shell and is inserted into the insertion holes. A limiting groove is provided on the surface of the second fixed shell, and the pin is slidably connected to the second fixed shell through the limiting groove.

[0007] Preferably, each of the two adjacent sides of the sliders is fixedly connected to a positioning shaft, and two symmetrical grooves are opened on both sides of the positioning plate. The two positioning shafts are respectively inserted into the grooves and slidably connected to the positioning plate through the grooves.

[0008] Preferably, a second permanent magnet is fixedly connected to the end of the pin away from the positioning plate, and a fixing hole is opened on the positioning plate at a position corresponding to the second permanent magnet, and a first permanent magnet is disposed inside the fixing hole.

[0009] Preferably, each of the first fixed shells has a symmetrically slidably connected locking block on its surface, and each slider has a locking groove on its surface, with the locking block inserted into the groove at one end facing the slider.

[0010] Preferably, a spring is wound around the surface of the card block, the spring is located between the first fixing shell and the limiting groove, and the two ends of the spring are fixedly connected to the card block and the first fixing shell, respectively.

[0011] Preferably, a limiting hole is provided at the end of the card block away from the card slot.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model, through the sliding positioning plate and the rotatable design, allows the PCB circuit board to adapt to different installation scenarios and meet the diverse layout requirements inside the chassis. The cooperation between the slider and the limiting groove, combined with the locking mechanism of the pin, makes the extension and angle adjustment of the positioning plate more convenient and significantly improves the installation efficiency.

[0014] 2. By adopting a separate positioning structure, this utility model avoids direct contact between the bolts and the substrate body, preventing damage to the substrate due to mechanical stress or friction during installation.

[0015] 3. This utility model ensures that the slider is automatically fixed after movement or rotation through the elastic locking mechanism of the card block and the card slot, preventing the positioning plate from being accidentally displaced. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the positioning plate and mounting hole structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the second permanent magnet and fixing hole structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the limiting groove and slider structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the slider and positioning shaft structure of this utility model;

[0021] Figure 6 This utility model Figure 4 Enlarged view of point A in the middle.

[0022] In the figure: 1. Base plate body; 2. First fixing shell; 3. Positioning plate; 4. Mounting hole; 5. Second fixing shell; 6. Pin; 7. Limiting groove; 8. Slider; 9. Positioning shaft; 10. Slot; 11. Slide groove; 12. Spring; 13. Limiting hole; 14. Second permanent magnet; 15. Locking block; 16. Fixing hole. Detailed Implementation

[0023] 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.

[0024] Please see Figures 1-6 This utility model provides a PCB circuit board, including a substrate body 1. A plurality of first fixing shells 2 are uniformly fixed to the bottom surface of the substrate body 1 by bolts. Two limiting grooves 7 are symmetrically fixed to the inner wall of each first fixing shell 2. A slider 8 is slidably connected inside each limiting groove 7. A positioning plate 3 is disposed inside the first fixing shell 2, and the positioning plate 3 is slidably connected to the limiting groove 7 via the slider 8. A second fixing shell 5 is fixedly connected to the surface of the first fixing shell 2. A pin 6 is slidably connected inside the second fixing shell 5. Insertion holes are opened on the surface of the positioning plate 3 at positions corresponding to the pin 6. The pin 6 penetrates the surface of the first fixing shell 2 and is inserted into the insertion hole. Limiting grooves 7 are opened on the surface of the second fixing shell 5, and the pin 6 is limited by the limiting grooves. The groove 7 and the second fixed shell 5 are slidably connected. When it is necessary to position the substrate body 1 on the plane, the positioning plate 3 is first pulled out from the inside of the first fixed shell 2. The positioning plate 3 will slide inside the limiting groove 7 through the slider 8 until the mounting hole 4 corresponds to the mounting thread hole. Then, the pin 6 slides inside the second fixed shell 5 towards the positioning plate 3 until it is inserted into the insertion hole, thus fixing the positioning plate 3. Then, the pin 6 is rotated so that the end of the pin 6 away from the positioning plate 3 slides inside the limiting groove 7. The pin 6 is positioned through the limiting groove 7, so that the bolt can be positioned through the mounting hole 4 to position the substrate body 1, thus preventing the bolt from directly contacting the substrate body 1 and causing damage to the substrate body 1.

[0025] In this embodiment, each of the two adjacent sides of the sliders 8 is fixedly connected to a positioning shaft 9. Two symmetrical grooves 11 are opened on both sides of the positioning plate 3. The two positioning shafts 9 are respectively inserted into the grooves 11 and are slidably connected to the positioning plate 3 through the grooves 11. The end of the pin 6 away from the positioning plate 3 is fixedly connected to a second permanent magnet 14. The positioning plate 3 is provided with a fixing hole 16 at the position corresponding to the second permanent magnet 14. The first permanent magnet is provided inside the fixing hole 16. When it is necessary to install the substrate body 1 vertically inside the chassis, the positioning plate 3 is first pulled out into the first fixing shell 2, and then the positioning plate 3 is rotated around the positioning shaft 9 until the positioning plate 3 is horizontal with the inner wall of the chassis. This allows the second permanent magnet 14 to be inserted into the fixing hole 16 and attracted to the first permanent magnet, thus realizing the rotation and positioning of the positioning plate 3.

[0026] In this embodiment, each first fixed shell 2 has a symmetrically slidably connected locking block 15 on its surface, and each slider 8 has a locking groove 10 on its surface. The end of the locking block 15 facing the slider 8 is inserted into the inside of the locking groove 10. A spring 12 is wound around the surface of the locking block 15. The spring 12 is located between the first fixed shell 2 and the limiting groove 7. The two ends of the spring 12 are fixedly connected to the locking block 15 and the first fixed shell 2, respectively. A limiting hole 13 is opened at the end of the locking block 15 away from the locking groove 10. When the slider 8 slides a certain distance inside the limiting groove 7, the locking block 15 will be inserted into the inside of the locking groove 10 due to the elastic potential energy of the spring 12, thus limiting the slider 8 and preventing the slider 8 from moving after the positioning plate 3 is rotated. When it is necessary to retract the slider 8, the locking block 15 is pulled out from the inside of the locking groove 10 by inserting an external pin into the limiting hole 13, thus releasing the limitation on the slider 8 and allowing it to be retracted.

[0027] The use of this utility model involves the following steps:

[0028] S1: When it is necessary to position the substrate body 1 on the plane, first pull the positioning plate 3 out from the inside of the first fixing shell 2. The positioning plate 3 will slide inside the limiting groove 7 through the slider 8 until the mounting hole 4 corresponds to the mounting threaded hole. Then, the pin 6 slides inside the second fixing shell 5 towards the positioning plate 3 until it is inserted into the insertion hole, thus fixing the positioning plate 3. Then rotate the pin 6 so that the end of the pin 6 away from the positioning plate 3 slides inside the limiting groove 7. The pin 6 is positioned through the limiting groove 7, so that the bolt can be positioned through the mounting hole 4 to position the substrate body 1, thus preventing the bolt from directly contacting the substrate body 1 and causing damage to the substrate body 1.

[0029] S2: When it is necessary to install the substrate body 1 vertically inside the chassis, first pull the positioning plate 3 into the inside of the first fixing shell 2, and then rotate the positioning plate 3 around the positioning shaft 9 until the positioning plate 3 is horizontal with the inner wall of the chassis, so that the second permanent magnet 14 will be inserted into the inside of the fixing hole 16 and attract each other with the first permanent magnet, thus realizing the rotation and positioning of the positioning plate 3.

[0030] S3: When the slider 8 slides a certain distance inside the limiting groove 7, the locking block 15 will be inserted into the slot 10 due to the elastic potential energy of the spring 12, thus limiting the slider 8 and preventing the slider 8 from moving after the positioning plate 3 is rotated. When it is necessary to retract the slider 8, the locking block 15 is pulled out from the slot 10 by inserting the external pin into the limiting hole 13, thus releasing the limitation on the slider 8 and allowing it to be retracted.

[0031] Finally, the following points should be noted: In the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection" and "linkage" should be interpreted broadly, and can be mechanical or electrical connection, or internal connection between two components, or direct connection. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationship. When the absolute position of the described object changes, the relative positional relationship may change.

[0032] The electronic components and modules used in this utility model can all be parts that are commonly used in the market and can achieve the specific functions in this case. The specific models and sizes can be selected and adjusted according to actual needs.

[0033] 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 PCB circuit board, comprising a substrate body (1), characterized in that: The bottom surface of the substrate body (1) is uniformly fixedly connected with several first fixing shells (2) by bolts. Each first fixing shell (2) has two limiting grooves (7) symmetrically fixedly connected to its inner wall. Each limiting groove (7) has a slider (8) slidably connected inside. The first fixing shell (2) is provided with a positioning plate (3). The surface of the positioning plate (3) is provided with mounting holes (4). The positioning plate (3) is slidably connected to the limiting groove (7) through the slider (8).

2. The PCB circuit board according to claim 1, characterized in that: A second fixed shell (5) is fixedly connected to the surface of the first fixed shell (2). A pin (6) is slidably connected inside the second fixed shell (5). A socket is provided on the surface of the positioning plate (3) at a position corresponding to the pin (6). The pin (6) passes through the surface of the first fixed shell (2) and is inserted into the socket. A limiting groove (7) is provided on the surface of the second fixed shell (5). The pin (6) is slidably connected to the second fixed shell (5) through the limiting groove (7).

3. The PCB circuit board according to claim 2, characterized in that: The two sliders (8) are fixedly connected to a positioning shaft (9) on their adjacent sides. The positioning plate (3) has two symmetrical grooves (11) on both sides. The two positioning shafts (9) are respectively inserted into the grooves (11) and are slidably connected to the positioning plate (3) through the grooves (11).

4. The PCB circuit board according to claim 3, characterized in that: The pin (6) is fixedly connected to a second permanent magnet (14) at one end away from the positioning plate (3). The positioning plate (3) has a fixing hole (16) at the position corresponding to the second permanent magnet (14). The fixing hole (16) contains a first permanent magnet.

5. The PCB circuit board according to claim 4, characterized in that: Each of the first fixed shells (2) has a symmetrical sliding block (15) on its surface, and each of the sliders (8) has a slot (10) on its surface. The end of the block (15) facing the slider (8) is inserted into the slot (10).

6. The PCB circuit board according to claim 5, characterized in that: A spring (12) is wound around the surface of the card block (15). The spring (12) is located between the first fixing shell (2) and the limiting groove (7). The two ends of the spring (12) are fixedly connected to the card block (15) and the first fixing shell (2), respectively.

7. The PCB circuit board according to claim 6, characterized in that: A limiting hole (13) is provided at the end of the card block (15) away from the card slot (10).

Images