Printed circuit board and electronic device

Abstract

The utility model relates to the technical field of printed circuit boards, in particular to a printed circuit board and an electronic device, which comprise a mounting base and a circuit board substrate, the top surface of the circuit board substrate is adhered with a circuit board printing layer, and the top surface of the mounting base is fixedly connected with a plurality of symmetrically arranged threaded sleeves. The utility model has the advantages that the threaded sleeve is inserted into the backing ring until the top surface of the limiting ring is attached to the bottom surface of the backing ring, at the moment, the plug pin penetrates through the circuit board substrate and is inserted into the clamping hole, the screw part of the locking bolt is inserted into the inner tube, and the nut is rotated, so that the circuit board is locked. The locking bolt can be screwed into the threaded sleeve through threaded transmission until the nut part of the locking bolt is attached to the top surface of the assembly ring, at the moment, the bottom surface of the nut part can rotate relative to the top surface of the assembly ring, the condition that the top surface of the circuit board is abraded is prevented, the assembly ring and the circuit board are split, and the assembly ring is convenient to assemble and disassemble. And the assembling ring is convenient to replace.

Description

Technical Field

[0001] This utility model relates to the field of printed circuit board technology, and in particular to a printed circuit board and electronic device. Background Technology

[0002] Printed circuit boards (PCBs), also known as printed circuit boards, are core components of modern electronic devices. They achieve electrical connections and functional integration between electronic components by covering an insulating substrate with a layer of conductive material (such as copper) and wiring according to a predetermined circuit design. A PCB consists of conductive material layers and insulating layers (such as epoxy resin or fiberglass), and through precise manufacturing processes, complex circuit layouts are accurately transferred onto the board material.

[0003] In the design of printed circuit boards (PCBs), through holes are typically provided at the four corners for easy installation and securing. These holes allow the use of fasteners such as bolts to lock the PCB in place, ensuring the stability and reliability of the equipment. In practical applications, when the bolts rotate, the bottom surface of the nut rubs against the top surface of the PCB. This friction easily leads to wear on the top surface of the PCB. Over time, this wear will gradually intensify and may even affect the electrical performance and mechanical strength of the PCB. Furthermore, wear reduces the aesthetics and lifespan of the PCB, causing unnecessary losses for the user. Utility Model Content

[0004] The purpose of this invention is to at least solve one of the aforementioned technical defects.

[0005] Therefore, one objective of this utility model is to provide a printed circuit board and electronic device to solve the problems mentioned in the background art and overcome the shortcomings of the prior art.

[0006] To achieve the above objectives, one embodiment of this utility model provides a printed circuit board and an electronic device, including a mounting base and a circuit board substrate. A printed circuit layer is adhered to the top surface of the circuit board substrate. A plurality of symmetrically arranged threaded sleeves are fixedly connected to the top surface of the mounting base. A plurality of symmetrically arranged gaskets are embedded in the bottom surface of the circuit board substrate. The top of each threaded sleeve is inserted into the gasket. A plurality of symmetrically arranged through holes are formed through the top surface of the circuit board substrate, with the through holes coinciding with the axes of the gaskets. An inner tube is slidably connected to the inner wall of each through hole. An assembly ring is fixedly connected to the top of the inner tube and is slidably connected to the circuit board substrate. Two symmetrically arranged pins are fixedly connected to the bottom surface of the assembly ring, both pins penetrating the circuit board substrate and engaging with the gaskets. A locking bolt is rotatably connected to the inner wall of the inner tube. The screw portion of the locking bolt is threadedly connected to the threaded sleeve, and the nut portion of the locking bolt is abutted against the top surface of the assembly ring.

[0007] Preferably, in any of the above solutions, a limiting ring is fixedly connected to the outer surface of the threaded sleeve, and the top surface of the limiting ring is in contact with the bottom surface of the washer ring.

[0008] Preferably, in any of the above embodiments, a blocking ring is fixedly connected to the inner wall of the washer, the screw portion of the locking bolt is rotatably connected to the blocking ring, and the top surface of the threaded sleeve is in contact with the bottom surface of the blocking ring.

[0009] Preferably, one side of the printed circuit board layer has a plurality of symmetrically arranged assembly slots, and a plurality of assembly rings are slidably connected to the printed circuit board layer through the assembly slots, wherein the thickness of the printed circuit board layer and the assembly rings are equal.

[0010] Preferably, in any of the above embodiments, the top surface of the washer ring has two symmetrically arranged snap-fit ​​holes, and both pins penetrate the circuit board substrate and snap-fit ​​with the washer ring through the snap-fit ​​holes.

[0011] Preferably, in any of the above embodiments, a sealing ring is fixedly connected to the top surface of the assembly ring, a plug is slidably connected to the inner wall of the sealing ring, the plug is rotatably connected to the assembly ring via a rubber connecting strip, and the bottom surface of the plug is in contact with the top of the locking bolt.

[0012] Preferably, any of the above solutions includes electronic components for a printed circuit board, wherein the pins of the electronic components are soldered to the printed layer of the circuit board.

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

[0014] 1. When the circuit board needs to be installed, the operator can remove the circuit board substrate and insert the threaded sleeve into the washer until the top surface of the limiting ring is in contact with the bottom surface of the washer. At this time, insert the pin through the circuit board substrate into the snap-fit ​​hole on the pad, and then insert the screw of the locking bolt into the inner tube and turn the nut. Through the thread drive, the locking bolt can be screwed into the threaded sleeve until the nut of the locking bolt is in contact with the top surface of the assembly ring. At this time, the bottom surface of the nut will rotate relative to the top surface of the assembly ring to prevent wear on the top surface of the circuit board. Moreover, the assembly ring and the circuit board body are separate, which makes it easy to replace the assembly ring.

[0015] 2. The sealing ring enhances the seal between the assembly ring and the plug, preventing external dust, moisture, and other impurities from entering and protecting the internal circuitry from damage. Furthermore, the plug is rotatably connected to the assembly ring via a rubber connecting strip, making it more flexible and convenient to open and close. The bottom surface of the plug fits snugly against the top of the locking bolt, further ensuring that the locking bolt will not loosen accidentally when not in use, thus improving the overall structural safety. Attached Figure Description

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

[0017] Figure 2 This is a cross-sectional structural diagram of the assembly of this utility model;

[0018] Figure 3 This is an exploded structural diagram of the assembly of this utility model;

[0019] Figure 4 This is a schematic diagram of the structure at point A of this utility model;

[0020] Figure 5 This is a schematic diagram of the structure at point B of this utility model;

[0021] Figure 6 This is a schematic diagram of the inner tube structure of this utility model;

[0022] Figure 7 This is a schematic diagram of the structure of the gasket ring of this utility model.

[0023] In the diagram: 1-Mounting base, 2-Circuit board substrate, 3-Circuit board printed layer, 4-Threaded sleeve, 5-Washer ring, 6-Through hole, 7-Inner tube, 8-Assembly ring, 9-Pin, 10-Locking bolt, 11-Limiting ring, 12-Blocking ring, 13-Assembly groove, 14-Snap-fit ​​hole, 15-Sealing ring, 16-Plug, 17-Electronic component. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited thereto.

[0025] like Figures 1 to 7 As shown, a printed circuit board and electronic device include a mounting base 1 and a circuit board substrate 2. A printed circuit layer 3 is bonded to the top surface of the circuit board substrate 2. A plurality of symmetrically arranged threaded sleeves 4 are fixedly connected to the top surface of the mounting base 1. A plurality of symmetrically arranged washers 5 are embedded in the bottom surface of the circuit board substrate 2. The top of the threaded sleeves 4 is inserted into the inside of the washers 5. A plurality of symmetrically arranged through holes 6 are opened through the top surface of the circuit board substrate 2. The through holes 6 coincide with the axis of the washers 5. An inner tube 7 is slidably connected to the inner wall of each through hole 6. An assembly ring 8 is fixedly connected to the top of the inner tube 7. The assembly ring 8 is slidably connected to the circuit board substrate 2. Two symmetrically arranged pins 9 are fixedly connected to the bottom surface of the assembly ring 8. Both pins 9 penetrate the circuit board substrate 2 and are engaged with the washers 5. A locking bolt 10 is rotatably connected to the inner wall of the inner tube 7. The screw part of the locking bolt 10 is threadedly connected to the threaded sleeve 4. The nut part of the locking bolt 10 is in contact with the top surface of the assembly ring 8.

[0026] As an optional technical solution of this utility model, a limiting ring 11 is fixedly connected to the outer surface of the threaded sleeve 4. The top surface of the limiting ring 11 is in contact with the bottom surface of the washer 5. The setting of the limiting ring 11 allows the threaded sleeve 4 to have a clear positioning during installation, preventing it from being over-screwed in or out, thereby ensuring a stable connection between the threaded sleeve 4 and the washer 5. In addition, the contact between the top surface of the limiting ring 11 and the bottom surface of the washer 5 further enhances the stability of the structure.

[0027] As an optional technical solution of this utility model, a blocking ring 12 is fixedly connected to the inner wall of the washer 5, and the threaded part of the locking bolt 10 is rotatably connected to the blocking ring 12. The top surface of the threaded sleeve 4 is in contact with the bottom surface of the blocking ring 12. The introduction of the blocking ring 12 enables the locking bolt 10 to be stably connected to the washer 5 and prevents it from shifting during rotation. At the same time, the contact between the top surface of the threaded sleeve 4 and the bottom surface of the blocking ring 12 ensures the stability of the threaded sleeve 4 in the vertical direction and improves the overall structural strength.

[0028] As an optional technical solution of this utility model, a number of symmetrically arranged assembly slots 13 are provided through one side of the printed circuit board layer 3. A number of assembly rings 8 are slidably connected to the printed circuit board layer 3 through the assembly slots 13. The thickness of the printed circuit board layer 3 and the assembly rings 8 are equal. The arrangement of the assembly slots 13 allows the assembly rings 8 to slide on the printed circuit board layer 3. This design facilitates assembly and disassembly.

[0029] As an optional technical solution of this utility model, the top surface of the washer 5 has two symmetrically arranged snap-fit ​​holes 14. Both pins 9 penetrate the circuit board substrate 2 and snap-fit ​​with the washer 5 through the snap-fit ​​holes 14. The cooperation between the snap-fit ​​holes 14 and the pins 9 enables the washer 5 to be firmly connected to the circuit board substrate 2. This snap-fit ​​method is simple and effective, and greatly improves the convenience and stability of installation.

[0030] As an optional technical solution of this utility model, a sealing ring 15 is fixedly connected to the top surface of the assembly ring 8, and a plug 16 is slidably connected to the inner wall of the sealing ring 15. The plug 16 is rotatably connected to the assembly ring 8 via a rubber connecting strip, and the bottom surface of the plug 16 is in contact with the top of the locking bolt 10. The sealing ring 15 enhances the sealing between the assembly ring 8 and the plug 16, preventing external dust, moisture, and other impurities from entering the interior and protecting the internal circuit from damage. In addition, the plug 16 is rotatably connected to the assembly ring 8 via the rubber connecting strip, making the plug 16 more flexible and convenient to open and close.

[0031] As an optional technical solution of this utility model, it includes an electronic device 17 for a printed circuit board. The pins of the electronic device 17 are soldered to the printed layer 3 of the circuit board. The solder has good conductivity and adhesion, and after soldering, it can form a firm electrical connection. This can ensure stable signal transmission between the electronic device 17 and the printed layer 3 of the circuit board, avoiding signal attenuation and open circuit problems caused by poor contact. The solder can also tightly fix the pins of the electronic device 17 to the printed layer 3 of the circuit board through its wrapping and fixing effect, preventing the electronic device 17 from loosening or falling off due to vibration or external force. This ensures the stability and reliability of the overall operation of the printed circuit board. At the same time, the soldering operation is simple and can be adapted to the installation requirements of the pins of the electronic device 17, ensuring the tightness and consistency of the connection, and providing a reliable guarantee for the normal operation of the printed circuit board.

[0032] A printed circuit board and electronic device, the working principle of which is as follows:

[0033] 1) When the circuit board needs to be installed, the staff can take out the circuit board substrate 2 and insert the threaded sleeve 4 into the inside of the washer 5 until the top surface of the limit ring 11 is in contact with the bottom surface of the washer 5.

[0034] 2): Insert the bottom pin 9 of the assembly ring 8 through the snap-fit ​​hole 14 on the circuit board substrate 2 and the insertion pad 5, then insert the screw of the locking bolt 10 into the inner tube 7 and rotate the nut.

[0035] 3): The locking bolt 10 can be screwed into the threaded sleeve 4 through the threaded drive until the nut of the locking bolt 10 is in contact with the top surface of the assembly ring 8. At this time, the bottom surface of the nut will rotate relative to the top surface of the assembly ring 8 to prevent wear on the top surface of the circuit board.

[0036] In summary, when installing the printed circuit board and electronic components, the operator can remove the circuit board substrate 2 and insert the threaded sleeve 4 into the washer ring 5 until the top surface of the limiting ring 11 is in contact with the bottom surface of the washer ring 5. At this time, the pin 9 is inserted through the circuit board substrate 2 into the snap-fit ​​hole 14 on the pad 5. Then, the screw part of the locking bolt 10 is inserted into the inner tube 7 and the nut is rotated. Through the threaded transmission, the locking bolt 10 can be screwed into the threaded sleeve 4 until the nut part of the locking bolt 10 is in contact with the top surface of the assembly ring 8. At this time, the bottom surface of the nut part will rotate relative to the top surface of the assembly ring 8 to prevent wear on the top surface of the circuit board. Moreover, the assembly ring 8 and the circuit board body 2 are separate, which makes it easy to replace the assembly ring 8.

Claims

1. A printed circuit board, characterized in that: The circuit board includes a mounting base (1) and a circuit board substrate (2). A printed circuit board layer (3) is bonded to the top surface of the circuit board substrate (2). Several symmetrically arranged threaded sleeves (4) are fixedly connected to the top surface of the mounting base (1). Several symmetrically arranged gaskets (5) are embedded in the bottom surface of the circuit board substrate (2). The top of each threaded sleeve (4) is inserted into the gasket (5). Several symmetrically arranged through holes (6) are formed through the top surface of the circuit board substrate (2). The through holes (6) coincide with the axis of each gasket (5). Each through hole (6) has a... An inner tube (7) is slidably connected to the inner wall. An assembly ring (8) is fixedly connected to the top of the inner tube (7). The assembly ring (8) is slidably connected to the circuit board substrate (2). Two symmetrically arranged pins (9) are fixedly connected to the bottom surface of the assembly ring (8). Both pins (9) penetrate the circuit board substrate (2) and are engaged with the washer ring (5). A locking bolt (10) is rotatably connected to the inner wall of the inner tube (7). The screw part of the locking bolt (10) is threadedly connected to the threaded sleeve (4). The nut part of the locking bolt (10) is in contact with the top surface of the assembly ring (8).

2. A printed circuit board according to claim 1, characterized in that: A limiting ring (11) is fixedly connected to the outer surface of the threaded sleeve (4), and the top surface of the limiting ring (11) is in contact with the bottom surface of the washer (5).

3. A printed circuit board according to claim 2, characterized in that: The inner wall of the washer (5) is fixedly connected to a blocking ring (12), the screw part of the locking bolt (10) is rotatably connected to the blocking ring (12), and the top surface of the threaded sleeve (4) is in contact with the bottom surface of the blocking ring (12).

4. A printed circuit board according to claim 3, characterized in that: A plurality of symmetrically arranged assembly slots (13) are provided through one side of the printed circuit board layer (3), and a plurality of assembly rings (8) are slidably connected to the printed circuit board layer (3) through the assembly slots (13). The thickness of the printed circuit board layer (3) and the assembly rings (8) are equal.

5. A printed circuit board according to claim 4, characterized in that: The top surface of the washer (5) has two symmetrically arranged snap-fit ​​holes (14), and the two pins (9) penetrate the circuit board substrate (2) and snap-fit ​​with the washer (5) through the snap-fit ​​holes (14).

6. A printed circuit board according to claim 5, characterized in that: A sealing ring (15) is fixedly connected to the top surface of the assembly ring (8), and a plug (16) is slidably connected to the inner wall of the sealing ring (15). The plug (16) is rotatably connected to the assembly ring (8) through a rubber connecting strip, and the bottom surface of the plug (16) is in contact with the top of the locking bolt (10).

7. An electronic device, characterized in that: Includes an electronic device (17) for use on a printed circuit board as described in any one of claims 1-6, wherein the pins of the electronic device (17) are soldered to the printed layer (3) of the circuit board.

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