A PCB board with replaceable wiring strips

Abstract

The utility model relates to electronic information manufacturing industry technical field, and disclose a kind of replaceable PCB of wiring row, including fixed plate, mounting plate and first wiring assembly and second wiring assembly separately arranged in the two sides of fixed plate, first wiring assembly is connected by fixed structure first wiring row fixed push piece fastening pressure rod etc. First wiring port connector jack and mounting structure connector fixed plate mounting groove realize the quick disassembly and modularization replacement of wiring row, support individually replacing fault wiring row or upgrading function module, without overall repair PCB, second wiring assembly is fixed by wiring structure second wiring row second wiring port and support structure fixed frame fixed jaw, former provides multiport fixed connection, latter absorbs vibration impact by elastic cooperation, improves connection stability.

Description

Technical Field

[0001] This utility model relates to the field of electronic information manufacturing technology, specifically to a PCB board with replaceable terminal blocks. Background Technology

[0002] Printed circuit boards (PCBs) are crucial components in electronic devices. They provide mechanical support and electrical connections for electronic components and are the fundamental carriers for realizing the functions of electronic devices. In the rapid development of the electronics and information manufacturing industry, the requirements for the functionality, integration, and maintainability of equipment are increasing day by day. As a key component connecting the PCB to external circuits, the flexibility and replaceability of terminal blocks have become important factors affecting equipment upgrades, maintenance efficiency, and cost control. Traditional PCBs with fixed terminal blocks often require the entire PCB to be replaced when faced with circuit structure adjustments, damaged wiring ports, or functional expansions. This is not only complex and costly, but also leads to prolonged equipment downtime, making it difficult to meet the needs of efficient maintenance and rapid iteration of modern electronic equipment. Therefore, developing a PCB with replaceable terminal blocks is of great practical significance.

[0003] Traditional PCB board terminal blocks are typically connected to the circuit board via soldering or integral fixing. This fixed connection mode has significant drawbacks. On the one hand, when the terminal block wears out due to frequent plugging and unplugging, components burn out due to circuit failure, or the wiring layout needs to be adjusted due to design changes, the terminal block cannot be disassembled and replaced individually. The entire PCB board must be repaired or replaced, which not only increases material and labor costs but may also damage the circuit board due to secondary soldering, affecting its electrical performance and service life. On the other hand, the design of fixed terminal blocks limits the modular expansion capability of the PCB board. When new functional modules need to be added or external devices of different specifications need to be adapted, it is difficult to achieve rapid upgrades by flexibly replacing the terminal blocks. This results in poor equipment versatility and scalability, which seriously restricts the adaptability and competitiveness of electronic devices in diverse application scenarios. To address this, we propose a PCB board with replaceable terminal blocks. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a PCB board with replaceable terminal blocks, thus solving the aforementioned problems.

[0005] To achieve the above-mentioned objectives, this utility model provides the following technical solution: a PCB board with replaceable terminal blocks, comprising: A fixing plate and a mounting plate, wherein the mounting plate is provided at the top center of the fixing plate, and the mounting plate is perpendicular to the top of the fixing plate; The first wiring assembly is disposed on the side of the fixing plate. The wiring assembly includes a fixing structure, a connecting structure and a mounting structure. The mounting structure is disposed on the side of the connecting structure. The second wiring assembly is disposed on the side of the fixed plate, and the second wiring assembly includes a wiring structure and a support structure.

[0006] Preferably, the fixing structure includes a first terminal block, a fixing lever fixing rod, a fixing lever, and a fastening pressure rod. The first terminal block is fixedly installed on the side of the fixing plate, and the fixing lever fixing rod is fixedly installed on the top of the first terminal block. Multiple sets of linearly distributed fixing levers are rotatably installed on the outer surface of the fixing lever fixing rod. A fastening pressure rod corresponding to the fixing lever is movably installed on the top of the first terminal block next to the side of the fixing lever.

[0007] Preferably, the connection structure includes a first wiring port, a pin, and a connector socket. The first wiring port is provided on the side of the first wiring bar, corresponding to the number of fastening rods. The first wiring port is directly below the fastening rod. A pin is movably installed in the first wiring port. A connector socket is provided on the other side of the pin.

[0008] Preferably, the mounting structure includes a connector and a mounting slot for a second fixing plate. The connector is fixedly installed in the connector socket, and a mounting slot for the second fixing plate is provided on the other side of the connector. A PCB board fixing structure is fixedly installed in the mounting slot for the second fixing plate.

[0009] Preferably, the PCB board fixing structure includes a second fixing plate, a PCB board mounting slot, and a PCB board. The second fixing plate is fixedly installed in the second fixing plate mounting slot. The top of the second fixing plate has a PCB board mounting slot, and a PCB board is fixedly installed in the PCB board mounting slot.

[0010] Preferably, the wiring structure includes a second terminal block and a second wiring port. The second terminal block is fixedly installed on the other side of the fixing plate, and multiple sets of linearly distributed second wiring ports are opened on the outward side wall of the second terminal block.

[0011] Preferably, the support structure includes a fixing frame, a fixing groove, and fixing claws. Fixing claws are provided on both sides of the second terminal block, and the fixing frame is movably installed on both sides of the second terminal block. The fixing frame has a fixing groove on its side, and the fixing groove is connected to the fixing claws.

[0012] Compared with the prior art, this utility model provides a PCB board with replaceable terminal blocks, which has the following advantages: 1. The PCB board of this replaceable terminal block uses a modular design to enable quick replacement of the terminal block. The fixing tab and fastening rod in the first terminal assembly form a detachable fixing structure. When the first or second terminal block suffers wear or burnout, simply loosen the fixing tab and pull out the pin to disassemble the faulty terminal block and replace it with a new component without having to rework the entire PCB board. The dual terminal assembly design overcomes this limitation. The connector socket and mounting slot of the first terminal assembly are compatible with connectors and PCB boards of different specifications. The multiple linearly distributed second terminal ports of the second terminal block, together with the adjustable mounting bracket, support quick expansion of the number of terminal ports or change of interface type. Reliability is improved through multiple mechanical locking and elastic connection structures. The fixing tab and fastening rod form a two-way locking to ensure tight contact between the pin and the first terminal port, avoiding increased contact resistance. The fixing claws on both sides of the second terminal block cooperate with the fixing slots of the mounting bracket to form an elastic support structure, which can absorb the impact force during insertion and removal, reducing direct damage to the PCB board. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the first wiring port of this utility model; Figure 3 This is a schematic diagram of the second wiring port of this utility model; Figure 4 for Figure 3 A magnified view of part A in the diagram.

[0014] In the diagram: 1. Fixing plate; 2. Mounting plate; 3. First terminal block; 4. Fixing lever fixing rod; 5. Fixing lever; 6. Fastening lever; 7. First wiring port; 8. Pin; 9. Connector socket; 10. Connector; 11. Fixing plate second mounting slot; 12. Fixing plate second; 13. PCB board mounting slot; 14. PCB board; 15. Second terminal block; 16. Fixing bracket; 17. Fixing slot; 18. Fixing claw; 19. Second wiring port. Detailed Implementation

[0015] 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.

[0016] Please see Figure 1-4 A PCB board with replaceable terminal blocks, comprising: The fixing plate 1 and the mounting plate 2 are provided. The mounting plate 2 is provided at the top center of the fixing plate 1 and is perpendicular to the fixing plate 1 at the top of the fixing plate 1. The first wiring assembly is provided on the side of the fixed plate 1. The wiring assembly includes a fixed structure, a connection structure and a mounting structure. The mounting structure is provided on the side of the connection structure. The second wiring assembly is disposed on the side of the fixed plate 1. The second wiring assembly includes a wiring structure and a support structure.

[0017] Furthermore, the fixing structure includes a first terminal block 3, a fixing lever fixing rod 4, a fixing lever 5, and a fastening rod 6. The first terminal block 3 is fixedly installed on the side of the fixing plate 1, and the fixing lever fixing rod 4 is fixedly installed on the top of the first terminal block 3. Multiple sets of linearly distributed fixing levers 5 are rotatably installed on the outer surface of the fixing lever fixing rod 4. The fastening rod 6, corresponding to the fixing lever 5, is movably installed on the top of the first terminal block 3, corresponding to the side of the fixing lever 5. The fixing lever fixing rod 4 serves as the rotation axis of the fixing lever 5, and its surface is machined with anti-slip texture to ensure that the operator has a stable point of force when turning the fixing lever 5, avoiding operational errors due to slippage. The fastening rod 6 cooperates with the first terminal block 3: the bottom of the fastening rod 6 is provided with an elastic rubber pad. When the rod is pressed down, the rubber pad contacts the top of the pin 8, and uniform pressure is generated through elastic deformation, which can ensure the tightness of the electrical connection and prevent the pin 8 from being deformed by hard compression.

[0018] Furthermore, the connection structure includes a first wiring port 7, a pin 8, and a connector socket 9. The first wiring port 7 is provided on the side of the first wiring strip 3, corresponding to the number of fastening rods 6. The first wiring port 7 is located directly below the fastening rods 6. The pin 8 is movably installed inside the first wiring port 7. The connector socket 9 is provided on the other side of the pin 8. The internal structure of the first wiring port 7 is as follows: the inner wall of the port is plated with an anti-oxidation gold layer, which can reduce the attenuation of contact resistance during long-term use and improve the conductivity reliability; a spring pin is provided at the bottom of the port. When the pin 8 is inserted, the spring pin automatically presses against the tail of the pin 8 to form a double electrical connection point. The anti-misinsertion design of the pin 8 is as follows: the outer side of the pin 8 is provided with a trapezoidal guide slope, which cooperates with the trapezoidal groove of the first wiring port 7, allowing only unidirectional insertion and avoiding the risk of short circuit due to reverse insertion.

[0019] Furthermore, the mounting structure includes a connector 10 and a mounting slot 11 for a second mounting plate. The connector 10 is fixedly installed in the connector socket 9. The mounting slot 11 for the second mounting plate is opened on the other side of the connector 10. A PCB board fixing structure is fixedly installed in the mounting slot 11 for the second mounting plate. The connector 10 and the connector socket 9 adopt a snap-locking structure. When the connector 10 is inserted into the socket, the side snap automatically snaps into the groove on the inner wall of the socket, making a "click" sound, ensuring that the mechanical connection and electrical connection are completed simultaneously, avoiding loose connections. The heat dissipation design of the mounting slot 11 for the second mounting plate: the inside of the slot has honeycomb-shaped heat dissipation holes, which are aligned with the heat source area of ​​the PCB board 14. Heat can be quickly dissipated through air convection or conduction, reducing the operating temperature of the PCB board 14 and extending the life of electronic components.

[0020] Furthermore, the PCB board fixing structure includes a second fixing plate 12, a PCB board mounting slot 13, and a PCB board 14. The second fixing plate 12 is fixedly installed in the second fixing plate mounting slot 11. The top of the second fixing plate 12 has a PCB board mounting slot 13, and the PCB board 14 is fixedly installed in the PCB board mounting slot 13. The cooperation between the second fixing plate 12 and the second fixing plate mounting slot 11 is as follows: the second fixing plate 12 has guide rails on both sides, which precisely cooperate with the sliding grooves on the inner wall of the second fixing plate mounting slot 11. During installation, it can be quickly pushed in along the rails to ensure that the solder pads of the PCB board 14 are accurately aligned with the pins of the connector 10, avoiding positional deviations during manual installation. The anti-vibration pads of the PCB board mounting slot 13: silicone anti-vibration pads are pasted on the bottom of the slot, which can absorb the vibration energy during equipment operation and reduce the risk of solder joint cracking of the PCB board 14 due to vibration. It is especially suitable for high-frequency vibration scenarios such as automotive and industrial machinery.

[0021] Furthermore, the wiring structure includes a second terminal block 15 and second terminal ports 19. The second terminal block 15 is fixedly installed on the other side of the fixing plate 1. Multiple sets of linearly distributed second terminal ports 19 are opened on the outward side wall of the second terminal block 15. The second terminal ports 19 are waterproof, with rubber sealing rings on the outside of the ports. When the wire is inserted and locked, the sealing rings fit tightly with the outer sheath of the wire, achieving an IP67 waterproof standard to prevent liquid ingress and short circuits. This is suitable for humid or dusty environments. The grounding design of the second terminal block 15 integrates an independent grounding copper strip inside the block body, which is directly connected to the grounding terminal of the fixing plate 1 to ensure that static electricity or surge current from external equipment is quickly conducted to the ground, improving the system's anti-interference capability.

[0022] Furthermore, the support structure includes a fixing frame 16, a fixing groove 17, and fixing claws 18. Fixing claws 18 are provided on both sides of the second terminal block 15, and the fixing frame 16 is movably installed on both sides of the second terminal block 15. The fixing groove 17 is opened on the side of the fixing frame 16, and the fixing groove 17 is connected to the fixing claw 18. The fixing frame 16 adopts a split design, with the left and right halves connected by bolts. The overall width can be adjusted according to the length of the second terminal block 15, making it compatible with terminal blocks of different specifications and improving the versatility of the device. The fixing claws 18 are made of elastic material, and the claws are made of shape memory alloy. When subjected to excessive external force, the claws will deform but not be damaged. After the external force is removed, they will automatically return to their original shape, avoiding structural damage caused by rigid collision.

[0023] Structural Description: Fixing plate 1: Fixing plate 1 is the core load-bearing component of the PCB board. Mounting plate 2 is vertically installed at the top center, forming a "T" shaped three-dimensional structure, providing a mounting base for the first wiring assembly and the second wiring assembly, and enhancing the overall mechanical strength; Mounting plate 2: Mounting plate 2 is vertically fixed to the top of mounting plate 1. It is used to fix other electronic components or as a structural support, separating the wiring assembly from the PCB board mounting area, avoiding signal interference and improving maintenance convenience. First terminal block 3: The first terminal block 3 is fixed to the side of the fixing plate 1 and serves as the carrier of the wiring port. The top is equipped with a fixing lever 4, and the pin 8 can be quickly locked and unlocked through the fixing lever 5 and the fastening lever 6. Fixed Paddle Fixing Rod 4: The fixed paddle fixing rod 4 is horizontally installed on the top of the first terminal block 3. The surface is provided with anti-slip texture. It serves as the rotation axis of the fixed paddle 5 to ensure operational stability and accuracy. Fixed lever 5: Fixed lever 5 is rotatably mounted on fixed lever fixing rod 4. Through the lever principle, it drives the fastening pressure rod 6 to press down or lift up, thereby fixing and releasing the pin 8. It supports one-handed, tool-free operation. Fastening lever 6: The fastening lever 6 is movably installed on the top of the first terminal block 3. The bottom is equipped with an elastic rubber pad. When pressed down, it evenly presses the pin 8 to ensure a tight electrical connection and avoid damage from hard squeezing. First wiring port 7: The first wiring port 7 is located on the side of the first terminal block 3. The inner wall is plated with an anti-oxidation gold layer and a spring pin is provided to form a dual electrical connection point with the pin 8, thereby improving the reliability of conductivity. Pin 8: Pin 8 is movably installed in the first wiring port 7, with a trapezoidal guide slope on the outside to prevent misinsertion, and a connector socket 9 is opened at the other end to realize signal transmission between external wires and PCB board; Connector socket 9: Connector socket 9 is located on the side of pin 8 and is used to fix connector 10. It adopts a snap-lock structure to ensure that mechanical and electrical connections are completed simultaneously. Connector 10: Connector 10 is fixed inside connector socket 9, and a mounting slot 11 for fixing plate 2 is opened on the other side, which is compatible with PCB board modules of different specifications and supports quick replacement and upgrade; Mounting slot 11 of fixing plate 2: The mounting slot 11 of fixing plate 2 is located on the side of connector 10. It has honeycomb heat dissipation holes inside and is precisely connected to fixing plate 2 12 through slide rail to improve heat dissipation efficiency and installation accuracy. Fixing plate 2 12: Fixing plate 2 12 is embedded in the mounting slot 11 of fixing plate 2, and a PCB board mounting slot 13 is opened on the top. Guide rails are provided on both sides to ensure that the pins of PCB board 14 and connector 10 are accurately aligned. PCB board mounting slot 13: The PCB board mounting slot 13 is located on the top of the fixing board 2 12, and the bottom is pasted with silicone anti-vibration pads to absorb vibration energy and protect the solder joints of the PCB board 14 from the risk of cracking. PCB board 14: PCB board 14 is fixed in PCB board mounting slot 13, integrates signal processing or power conversion modules, and supports modular replacement to meet functional upgrade requirements. Second terminal block 15: The second terminal block 15 is fixed to the other side of the fixing plate 1, and has multiple sets of second terminal ports 19. It has an internal independent grounding copper strip to improve the system's anti-interference capability. Fixing bracket 16: The fixing bracket 16 is movably installed on both sides of the second terminal block 15 and is connected to the fixing claw 18 through the fixing groove 17. It adopts a split design to be compatible with different specifications of terminal blocks. Fixing groove 17: Fixing groove 17 is opened on the side of fixing frame 16 and cooperates with the wedge structure of fixing claw 18 to form elastic locking and absorb the insertion and removal impact force; Fixed claw 18: Fixed claw 18 is symmetrically arranged on both sides of the second terminal block 15. It is made of shape memory alloy and can automatically recover after being deformed by external force to avoid structural damage. Second wiring port 19: The second wiring port 19 is linearly distributed on the side wall of the second wiring bar 15. A rubber sealing ring is provided on the outside to meet the IP67 waterproof standard and adapt to humid or dusty environments. Working Principle: The fixing plate 1 serves as the core load-bearing component, with the mounting plate 2 vertically positioned at the top center, forming a "T-shaped" three-dimensional structure. The fixing plate 1 provides the mounting base for the first and second wiring assemblies, and its sides respectively support two sets of wiring assemblies, enabling electrical connections on both sides. The mounting plate 2, perpendicular to the top of the fixing plate 1, can be used to fix other electronic components or as a structural support, enhancing overall mechanical strength. The vertical layout of the fixing plate 1 and mounting plate 2 separates the wiring assemblies from the mounting area of ​​the PCB board 14, avoiding signal interference, while also providing space for the insertion and removal of the terminal blocks, improving maintenance convenience. The fixing structure allows for quick locking and unlocking. The first terminal block 3 is fixed to the side of the fixing plate 1, serving as the carrier for the wiring ports. The fixed lever 4 is horizontally installed on the top of the first terminal block 3. Multiple sets of fixed levers 5 are rotatably connected to its outer surface. Each set of fixed levers 5 corresponds to a fastening lever 6. Pulling the fixed lever 5 downwards causes the fastening lever 6 to press down, pressing the pin 8 tightly into the first terminal port 7 of the first terminal block 3, ensuring a tight electrical connection. Lifting the fixed lever 5 upwards causes the fastening lever 6 to lift simultaneously, releasing the pin 8 and allowing it to be pulled out of the first terminal port 7. This single-handed operation, achieved through mechanical lever principle, allows for the installation and removal of the terminal block without tools. The first terminal port 7 is located on the side of the first terminal block 3, corresponding one-to-one with the position of the fastening lever 6. The pin 8 is movably installed inside the port, with one end of the pin 8 inserted into the first terminal port 7 and the other end connected to… Connector socket 9 is used to fix connector 10. External wires are connected to the first wiring port 7 through pin 8, and conducted to connector 10 through the internal metal conductor of pin 8. Then, connector 10 is connected to the PCB board fixing structure to realize bidirectional transmission of signal or power. Pin 8 and the first wiring port 7 adopt a spring contact design, which generates elastic deformation when plugged in and out to ensure stable contact resistance and accommodate a certain degree of positional deviation. Connector 10 is fixed in connector socket 9. On its other side, a fixing plate second mounting slot 11 is opened. The PCB board fixing structure is installed in the slot. Fixing plate second 12 is embedded in fixing plate second mounting slot 11 to form mechanical support. PCB board mounting slot 13 is used to fix a small PCB board 14, which can integrate signal processing and power conversion. The second terminal block 15 is used to connect and fix cables. When a function needs to be replaced or upgraded, only the connector 10 needs to be removed to simultaneously replace the integrated PCB board 14 module without touching the main circuit of the fixing board 1. The second terminal block 15 uses a crimp-type design, securing the wires with screws or clips, suitable for long-term stable connections. Compared to the quick-plug feature of the first terminal block, the second terminal block 15 prioritizes the reliability of the fixed connection, avoiding poor contact due to vibration. It is suitable for long-term operating equipment in industrial environments. Fixing claws 18 are symmetrically arranged on both sides of the second terminal block 15, with wedge-shaped structures at the top. The fixing bracket 16 connects to the fixing claws 18 through fixing grooves 17. During installation, the fixing bracket 16 is pushed in along the claws.The wedge-shaped structure automatically engages with the fixing groove 17 to form a lock. The fixing frame 16 is made of elastic material. When the equipment is subjected to vibration or insertion / removal force, the fixing frame 16 absorbs the impact force through deformation, preventing stress from being directly transmitted to the connection between the second terminal block 15 and the fixing plate 1.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A PCB board with replaceable terminal blocks, characterized in that, include: A fixing plate (1) and a mounting plate (2) are provided at the top center of the fixing plate (1), and the mounting plate (2) is perpendicular to the fixing plate (1) at the top of the fixing plate (1). The first wiring assembly is disposed on the side of the fixing plate (1). The wiring assembly includes a fixing structure, a connecting structure and an installation structure. The side of the connecting structure is provided with an installation structure. The second wiring assembly is disposed on the side of the fixed plate (1), and the second wiring assembly includes a wiring structure and a support structure.

2. The PCB board with replaceable terminal blocks according to claim 1, characterized in that, The fixing structure includes a first terminal block (3), a fixing lever fixing rod (4), a fixing lever (5), and a fastening rod (6). The first terminal block (3) is fixedly installed on the side of the fixing plate (1). The fixing lever fixing rod (4) is fixedly installed on the top of the first terminal block (3). Multiple sets of linearly distributed fixing levers (5) are rotatably installed on the outer surface of the fixing lever fixing rod (4). The fastening rod (6) corresponding to the fixing lever (5) is movably installed on the top of the first terminal block (3) on the side of the fixing lever (5).

3. The PCB board with replaceable terminal blocks according to claim 2, characterized in that, The connection structure includes a first wiring port (7), a pin (8), and a connector socket (9). The side of the first wiring bar (3) is provided with a first wiring port (7) corresponding to the number of fastening rods (6). The first wiring port (7) is directly below the fastening rod (6). A pin (8) is movably installed in the first wiring port (7). A connector socket (9) is provided on the other side of the pin (8).

4. The PCB board with replaceable terminal blocks according to claim 3, characterized in that, The mounting structure includes a connector (10) and a mounting slot (11) for a second fixing plate. The connector (10) is fixedly installed in the connector socket (9). The other side of the connector (10) is provided with a mounting slot (11) for a second fixing plate. A PCB board fixing structure is fixedly installed in the mounting slot (11).

5. A PCB board with replaceable terminal blocks according to claim 4, characterized in that, The PCB board fixing structure includes a second fixing plate (12), a PCB board mounting slot (13), and a PCB board (14). The second fixing plate (12) is fixedly installed in the second fixing plate mounting slot (11). The top of the second fixing plate (12) is provided with a PCB board mounting slot (13), and the PCB board (14) is fixedly installed in the PCB board mounting slot (13).

6. A PCB board with replaceable terminal blocks according to claim 1, characterized in that, The wiring structure includes a second wiring bar (15) and a second wiring port (19). The second wiring bar (15) is fixedly installed on the other side of the fixing plate (1). The second wiring bar (15) has multiple sets of linearly distributed second wiring ports (19) on the side wall of the outward side.

7. A PCB board with replaceable terminal blocks according to claim 6, characterized in that, The support structure includes a fixing frame (16), a fixing groove (17), and a fixing claw (18). The fixing claw (18) is provided on both sides of the second terminal block (15). The fixing frame (16) is movably installed on both sides of the second terminal block (15). The fixing groove (17) is opened on the side of the fixing frame (16). The fixing groove (17) is connected to the fixing claw (18).

Images