A circuit board with a connecting structure

Abstract

This utility model discloses a circuit board with a built-in connection structure. The circuit board includes a circuit board body and an electrical wall. The electrical wall has insertion holes, and the circuit board body has pins. A screw is installed inside each pin, and a nut is threaded onto the screw's body outside the pin. Multiple expansion plates are fixedly disposed between the nut and the pin. Multiple conductive copper foil plates are also fixedly disposed on the end face of the nut near the pin. The top of the conductive copper foil plates has an arc-shaped structure bent away from the screw. When installing the circuit board, simply insert the pin into the corresponding insertion hole and use a tool to rotate the nut, causing the screw to rotate and bringing the nut closer to the pin. During this process, the expansion plates bend and press against the bottom of the insertion hole to fix the pin, and the conductive copper foil plates flip and contact the electrical wall to form a grounding path. For disassembly, rotating the nut in the opposite direction resets the expansion plates, releasing the fixation and facilitating circuit board disassembly and replacement, solving the problem of difficult disassembly using traditional connection structures.

Description

Technical Field

[0001] This utility model relates to the field of electronic and electrical technology, and in particular to a circuit board with a built-in connection structure. Background Technology

[0002] In the field of electronic equipment manufacturing, circuit boards are core components, and their connection method with the equipment is crucial. CN220358451 U discloses a circuit board with a built-in connection structure. This structure achieves connection by machining integrally formed pins on the edge of the circuit board, inserting them into electrical wall sockets, and using clamps on the back of the electrical wall to secure the pins. This ingenious structure utilizes the original materials of the circuit board to create a grounding path, solving the installation problem of circuit boards in confined, irregularly shaped spaces.

[0003] However, this connection method has obvious drawbacks: when the circuit board is damaged and needs to be replaced, the tight clamping of the pins by the clamps makes it difficult to pull the pins out of the socket. During the disassembly process, not only do you need to operate carefully to avoid damaging the electrical wall and circuit board, but the disassembly steps may also be cumbersome and complicated due to the hidden location and large number of clamps, which consumes a lot of time and energy.

[0004] In today's world of rapidly evolving electronic devices and ever-increasing maintenance demands, the difficult-to-disassemble connection structure severely impacts the efficiency of circuit board replacement, increases equipment maintenance costs and time, and limits subsequent upgrades and maintenance of electronic devices. Therefore, developing a circuit board with its own connection structure that can ensure a stable connection between the circuit board and the electrical wall, efficient conductivity, and easy disassembly and replacement has become an urgent need to improve the convenience of electronic device maintenance and the economy of its use. Utility Model Content

[0005] In view of the above situation and to overcome the defects of the existing technology, this utility model provides a circuit board with a built-in connection structure that can ensure a stable connection between the circuit board and the electrical wall, efficient conductivity, and easy disassembly and replacement.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] The circuit board with a built-in connection structure includes a circuit board body and an electrical wall. The electrical wall has a socket. The circuit board body has a pin that is fixedly embedded and can be disassembled and engaged with the socket. A screw is rotatably installed inside the pin. A nut is installed at one end of the screw. A nut is threaded on the screw body outside the pin. Multiple expansion plates are fixed between the nut and the pin. Multiple conductive copper foil plates are also fixedly installed on the end face of the nut near the pin. The top of the conductive copper foil plate is an arc-shaped structure that bends away from the screw. The pin, screw, and nut are all made of conductive material.

[0008] Preferably, the top end of the pin is provided with a groove, and the nut is rotatably disposed in the groove.

[0009] Preferably, the multiple expansion plates and conductive copper foil plates are arranged in a circular array, and the multiple expansion plates and conductive copper foil plates are staggered.

[0010] Preferably, the expansion plate has a bending notch at the center of its side near the screw.

[0011] Preferably, a limiting ring is provided between the nut and the pin, the limiting ring being sleeved on the outside of multiple conductive copper foil plates and connected to the nut by a spring.

[0012] Preferably, a guide ring is also fixedly provided on the top surface of the pin, and the outer diameter of the guide ring is larger than the inner diameter of the arrangement of multiple conductive copper foil plates.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] (1) By setting up a screw, nut, expansion plate and conductive copper foil plate, when installing the circuit board, the plug only needs to be inserted into the corresponding hole, and the screw is rotated by rotating the nut with a tool to make the nut close to the plug. During this process, the expansion plate bends and squeezes the bottom of the hole to fix the plug, and the conductive copper foil plate flips and contacts the electrical wall to form a grounding path. When disassembling, the nut is rotated in the opposite direction and the expansion plate is reset to release the fixation, which makes it convenient to disassemble and replace the circuit board and solves the problem of difficult disassembly of traditional connection structures.

[0015] (2) When the nut moves toward the pin, the bending notch of this utility model provides guidance for the bending of the expansion plate, ensuring that multiple expansion plates can be bent accurately away from the screw, thereby improving the stability and reliability of the pin fixing.

[0016] (3) When the circuit board is disassembled, during the reset process of the expansion plate, the limiting ring moves upward under the action of the spring, which drives the conductive copper foil plate to contract inward synchronously, so as to avoid the conductive copper foil plate from obstructing the circuit board from being pulled out and to ensure that the circuit board is disassembled smoothly. Attached Figure Description

[0017] Figure 1 A schematic diagram of the overall structure of the circuit board with built-in connection structure provided by this utility model;

[0018] Figure 2 for Figure 1 Enlarged view of section A in the middle;

[0019] Figure 3 for Figure 1 A magnified 3D view of the pins in the circuit board with its built-in connection structure;

[0020] Figure 4 for Figure 3 A magnified view of a portion of the image;

[0021] Figure 5 for Figure 4 Enlarged view of a single expansion plate.

[0022] The corresponding names of the attached figures are: 1-Circuit board body, 2-Electrical wall, 3-Socket, 4-Pin, 5-Screw, 6-Nut, 7-Nut, 8-Expansion plate, 9-Conductive copper foil plate, 10-Bending notch, 11-Limiting ring, 12-Spring, 13-Guide ring. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments. The embodiments of the present invention include, but are not limited to, the following embodiments.

[0024] Example 1

[0025] like Figure 1-5 As shown, the circuit board with a built-in connection structure provided by this utility model includes a circuit board body 1 and an electrical wall 2. The electrical wall 2 has a socket 3. A pin 4 that is detachably fitted into the circuit board body 1 is fixedly embedded in the socket 3. A screw 5 is rotatably installed inside the pin 4. A nut 6 is installed at one end of the screw 5. A nut 7 is threaded on the rod of the screw 5 outside the pin 4. Multiple expansion plates 8 are fixedly arranged between the nut 7 and the pin 4. Multiple conductive copper foil plates 9 are also fixedly arranged on the end face of the nut 7 near the pin 4. The top of the conductive copper foil plate 9 is an arc shape that bends away from the screw 5. The structure, in which the pin 4, screw 5, and nut 7 are all made of conductive material, utilizes the screw 5, nut 7, expansion plate 8, and conductive copper foil plate 9. During circuit board installation, simply insert the pin 4 into the corresponding socket 3, and use a tool to rotate the nut 6 to rotate the screw 5, bringing the nut 7 closer to the pin 4. During this process, the expansion plate 8 bends and presses against the bottom of the socket 3, fixing the pin 4. The conductive copper foil plate 9 flips and contacts the electrical wall 2, forming a grounding path. For disassembly, rotating the nut 6 in the opposite direction resets the expansion plate 8, releasing the fixation and facilitating circuit board disassembly and replacement. This solves the problem of difficult disassembly in traditional connection structures.

[0026] Example 2

[0027] Please see Figure 3 The top of the pin 4 is provided with a groove, and the nut 6 is rotatably set in the groove. The groove provides installation space for the nut 6, making the nut 6 more stable during rotation, avoiding the nut 6 shaking and affecting the transmission of the screw 5, and ensuring the smoothness and reliability of installation and disassembly operations.

[0028] Example 3

[0029] Please see Figure 2-4Multiple expansion plates 8 and conductive copper foil plates 9 are arranged in a circular array, and the multiple expansion plates 8 and conductive copper foil plates 9 are staggered. The circular array arrangement makes the expansion plates 8 squeeze the socket 3 more evenly and enhances the fixing effect of the plug 4. The staggered arrangement of conductive copper foil plates 9 and expansion plates 8 ensures that they do not interfere with each other, while ensuring the stable connection of the grounding path and the normal operation of expansion plates 8.

[0030] Example 4

[0031] Please see Figure 5 The expansion plate 8 is also provided with a bending notch 10 at the center of its side near the screw 5. When the nut 7 moves toward the pin 4, the bending notch 10 provides guidance for the bending of the expansion plate 8, ensuring that multiple expansion plates 8 can be bent accurately away from the screw 5, thereby improving the stability and reliability of the pin 4 fixation.

[0032] Example 5

[0033] Please see Figure 2-4 A limiting ring 11 is also provided between the nut 7 and the pin 4. The limiting ring 11 is sleeved on the outside of multiple conductive copper foil plates 9 and is connected to the nut 7 through a spring 12. When the circuit board is disassembled, during the reset process of the expansion plate 8, the limiting ring 11 moves upward under the action of the spring 12, driving the conductive copper foil plates 9 to contract inward synchronously, so as to avoid the conductive copper foil plates 9 from obstructing the circuit board from being pulled out and to ensure that the circuit board is disassembled smoothly.

[0034] Example 6

[0035] Please see Figure 2 The top surface of the pin 4 is also fixedly provided with a guide ring 13. The outer diameter of the guide ring 13 is larger than the inner diameter of the arrangement of multiple conductive copper foil plates 9. When the circuit board is installed, the guide ring 13 guides the conductive copper foil plates 9 to fold outward, ensuring that the conductive copper foil plates 9 can accurately contact the electrical wall 2, thereby quickly and stably forming a grounding path.

[0036] Working principle:

[0037] When installing the circuit board, insert pin 4 into the socket 3 of the electrical wall 2, and use a screwdriver or other tools to rotate the nut 6 in the groove of pin 4. The nut 6 drives the screw 5 to rotate, causing the nut 7 to move closer to pin 4. During this process, the expansion plate 8 is squeezed by the nut 7 and bends away from the screw 5 under the guidance of the bending notch 10, pressing tightly under the socket 3 to achieve a firm fixation of pin 4. At the same time, when the nut 7 is close to pin 4, the conductive copper foil plate 9 is flipped outward due to the influence of the end arc structure, making close contact with the electrical wall 2, and forming a grounding path by utilizing the conductive characteristics of pin 4, screw 5, and nut 7.

[0038] When the circuit board needs to be disassembled, rotate nut 6 in the reverse direction. Nut 7 moves away from pin 4, and expansion plate 8 loses its compressive force. Under its own elasticity, it bends back towards screw 5, releasing the compression and fixation on socket 3. At this time, limit ring 11 moves upward under the action of spring 12, causing conductive copper foil plate 9 to retract inward, avoiding obstruction of circuit board removal. Then, the circuit board can be easily removed from electrical wall 2, completing the replacement operation. The above embodiment is only one of the preferred embodiments of this utility model and should not be used to limit the protection scope of this utility model. Any modifications or refinements made to the main design concept and spirit of this utility model that are not substantial and still solve the same technical problem as this utility model should be included within the protection scope of this utility model.

Claims

1. A wiring board with a connection structure, comprising a wiring board main body (1) and an electric appliance wall (2), characterized in that, An insertion hole (3) is provided on the electrical wall (2). A pin (4) that is disassembled and fitted with the insertion hole (3) is fixedly embedded on the circuit board body (1). A screw (5) is rotatably installed inside the pin (4). A nut (6) is installed at one end of the screw (5). A nut (7) is threaded on the rod of the screw (5) outside the pin (4). Multiple expansion plates (8) are fixedly arranged between the nut (7) and the pin (4). Multiple conductive copper foil plates (9) are also fixedly arranged on the end face of the nut (7) near the pin (4). The top of the conductive copper foil plate (9) is an arc-shaped structure that bends away from the screw (5). The pin (4), screw (5), and nut (7) are all made of conductive material.

2. The circuit board with a connecting structure according to claim 1, wherein The top of the pin (4) is provided with a groove, and the nut (6) is rotatably disposed in the groove.

3. The circuit board with a connecting structure according to claim 1, wherein Multiple expansion plates (8) and conductive copper foil plates (9) are arranged in a circular array, and multiple expansion plates (8) and conductive copper foil plates (9) are staggered.

4. The circuit board with a connecting structure according to claim 1, wherein The expansion plate (8) also has a bending notch (10) at the center of its side near the screw (5).

5. The circuit board with a connecting structure according to claim 1, wherein A limiting ring (11) is also provided between the nut (7) and the pin (4). The limiting ring (11) is sleeved on the outside of multiple conductive copper foil plates (9) and connected to the nut (7) by a spring (12).

6. The circuit board with a connecting structure according to claim 1, wherein The top surface of the pin (4) is also fixedly provided with a guide ring (13), the outer diameter of which is larger than the inner diameter of the arrangement of multiple conductive copper foil plates (9).

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