20 PIN board-to-board connector
By employing a magnetic locking structure and a foolproof design, the problems of circuit boards easily detaching and incorrect insertion direction during use of board-to-board connectors are solved, achieving stable connection and correct insertion.
Patent Information
- Application Number
- CN202423004785.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-06
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-12-06
AI Technical Summary
Existing board-to-board connectors are prone to causing circuit boards to detach due to accidental tangling of wires during use, resulting in inconvenience to users.
It adopts a magnetic locking structure and a foolproof design. Through the attraction of magnetic blocks and the cooperation of limiting plates, it ensures that the circuit board is not easy to detach after connection, and the design of foolproof grooves and foolproof plates avoids incorrect insertion direction.
It ensures stable circuit board connections and correct insertion orientation, avoiding problems such as accidental disconnection and incorrect insertion direction, and providing ease of use.
Smart Images
Figure CN223539986U_ABST
Abstract
Description
Technical Field
[0001] This utility model is a 20-pin board-to-board connector, belonging to the field of electrical connectors. Background Technology
[0002] A board-to-board connector is a component used to connect different electronic boards or circuit boards. It is an essential device for power and signal coupling in precision circuits. It can directly connect two or more circuit boards together. Board-to-board connectors are commonly used in the field of electronic control units in automotive central control systems, mainly to solve the problem of directly mating and connecting two PCB boards in a smaller space.
[0003] However, most existing board-to-board connectors on the market use spring clips fixed to the inner shell to snap into slots. When in use, if the user accidentally pulls on the wires on the two circuit boards, the spring clips will retract under the force, causing the two circuit boards to accidentally detach and requiring the user to reconnect them. As a result, the device is prone to accidental detachment after being connected, causing considerable trouble for the user. Utility Model Content
[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a PIN board-to-board connector to solve the problems mentioned in the background art. This utility model ensures that the device will not accidentally detach after being connected, bringing great convenience to the user.
[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a PIN board-to-board connector, comprising a PCB board and a base board end, wherein a plastic shell is provided on one side of the PCB board, a terminal block end is provided on the inner wall of the plastic shell, a locking plate is fixedly connected to the top of the PCB board, a locking block is fixedly connected to one end of the locking plate, a locking groove is provided at the bottom of the locking block, a first magnetic block is fixedly connected to the inner wall of the locking groove, a fixing plate is fixedly connected to the top of the base board end, a fixing groove is provided on one side of the fixing plate, a groove is provided on the inner bottom wall of the fixing groove, and a locking component is provided on the inner bottom wall of the groove.
[0006] Furthermore, the outer wall of the locking plate is provided with a spring retaining bead, and the inner wall of the fixing groove is provided with a retaining groove, wherein the spring retaining bead is movably engaged with the retaining groove.
[0007] Furthermore, the locking component includes a spring, the bottom of which is fixedly connected to the inner bottom wall of the groove, and the top of which is fixedly connected to a limiting plate. The limiting plate is slidably sleeved with the groove, and the top of the limiting plate is fixedly connected to a pressing plate.
[0008] Furthermore, the inner top wall of the fixing groove is provided with a through groove, and the limiting plate is slidably sleeved with the through groove.
[0009] Furthermore, a limiting channel is provided on one side of the limiting plate, and a second magnetic block is fixedly connected to the inner bottom wall of the limiting channel.
[0010] Furthermore, the outer wall of the terminal block end is provided with a foolproof component, which includes a foolproof groove and a foolproof plate. The foolproof groove is formed on the outer wall of the terminal block end, and the foolproof plate is fixedly connected to the inner wall of the original terminal block end.
[0011] The beneficial effects of this utility model are:
[0012] 1. By pressing the button, the locking plate is inserted into the fixing groove, and the locking block passes through the limiting channel. After the PCB board and the original board are connected, the button is released, and the limiting plate is reset by the spring. The second magnetic block attracts the first magnetic block, and the second magnetic block will be locked inside the locking groove, thus locking the locking plate. When the user accidentally pulls the PCB board and the original board, the PCB board and the original board cannot be separated by the force. Thus, the device will not accidentally separate after being connected, bringing great convenience to the user.
[0013] 2. Multiple anti-misalignment slots and anti-misalignment plates are used. The anti-misalignment slots at the top and bottom of the terminal block are not on the same longitudinal line. The anti-misalignment plates at the top and bottom of the inner wall of the terminal block are adapted to the anti-misalignment slots at the top and bottom of the terminal block, respectively. Thus, when the terminal block is inserted into the original board, the anti-misalignment slots and anti-misalignment plates limit the wiring to one direction only, which brings great convenience to the user and avoids the user inserting the wrong direction when pairing. Attached Figure Description
[0014] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:
[0015] Figure 1 This is a schematic diagram of the structure of a 20-pin board-to-board connector according to the present invention;
[0016] Figure 2 for Figure 1 Enlarged view of the structure at point A in the middle;
[0017] Figure 3 This is a schematic diagram of the locking plate in this utility model;
[0018] Figure 4 This is a schematic diagram of the internal structure of the fixing plate in this utility model;
[0019] Figure 5 for Figure 4 Enlarged view of the structure at point B.
[0020] In the diagram: 1. PCB board; 2. Plastic shell; 3. Original board end; 4. Terminal board end; 5. Anti-foolproof groove; 6. Anti-foolproof plate; 7. Locking plate; 8. Spring bead; 9. Locking block; 10. Locking groove; 11. First magnetic block; 12. Fixing plate; 13. Fixing groove; 14. Card slot; 15. Groove; 16. Spring; 17. Limiting plate; 18. Limiting channel; 19. Second magnetic block; 20. Through groove; 21. Press plate. Detailed Implementation
[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0022] Please see Figures 1-5 This utility model provides a technical solution: a 20PIN board-to-board connector, including a PCB board 1 and a primary board end 3. A plastic shell 2 is provided on one side of the PCB board 1, and the plastic shell 2 is snapped onto the outside of the PCB board 1. A terminal block end 4 is provided on the inner wall of the plastic shell 2, and the terminal block end 4 is connected to the circuit of the PCB board 1. A locking plate 7 is fixedly connected to the top of the PCB board 1, and a locking block 9 is fixedly connected to one end of the locking plate 7. A locking groove 10 is opened at the bottom of the locking block 9, and a first magnetic block 11 is fixedly connected to the inner wall of the locking groove 10. The first magnetic block 11 has a strong magnetic force. A fixing plate 12 is fixedly connected to the top of the primary board end 3, and a fixing groove 13 is opened on one side of the fixing plate 12. When the PCB board 1 and the primary board end 3 are connected, the locking plate 7 has an "L" shaped structure, and one end of the locking plate 7 will be inserted into the interior of the fixing groove 13. A groove 15 is opened on the inner bottom wall of the fixing groove 13, and a locking component is provided on the inner bottom wall of the groove 15.
[0023] The outer wall of the locking plate 7 is provided with a spring-loaded bead 8, and the inner wall of the fixing groove 13 is provided with a slot 14. The spring-loaded bead 8 and the slot 14 are movably engaged. When the PCB board 1 is connected to the original board end 3, one end of the locking plate 7 will be inserted into the interior of the fixing groove 13, and the spring-loaded bead 8 and the slot 14 will engage, thereby playing an auxiliary positioning role.
[0024] The locking component includes a spring 16. The bottom of the spring 16 is fixedly connected to the inner bottom wall of the groove 15, and the top of the spring 16 is fixedly connected to a limiting plate 17. The limiting plate 17 is slidably sleeved with the groove 15. A pressing plate 21 is fixedly connected to the top of the limiting plate 17. When the limiting plate 17 is subjected to force, it will move into the groove 15. When the limiting plate 17 is not subjected to force, it can be reset by the elastic force of the spring 16.
[0025] The inner top wall of the fixed groove 13 is provided with a through groove 20, and the limiting plate 17 is slidably sleeved with the through groove 20. The top of the limiting plate 17 extends to the outside of the fixed plate 12 through the through groove 20, so that the user can control the movement of the limiting plate 17 through the outside of the fixed plate 12.
[0026] A limiting channel 18 is provided on one side of the limiting plate 17, and a second magnetic block 19 is fixedly connected to the inner bottom wall of the limiting channel 18. The second magnetic block 19 has the same magnetic force as the first magnetic block 11. When the first magnetic block 11 and the second magnetic block 19 are close to each other, they will attract each other through the magnetic force. When the locking plate 7 is inserted into the inside of the fixing groove 13, one end of the locking block 9 will pass through the limiting channel 18, and the second magnetic block 19 will attract the first magnetic block 11. When the pressing plate 21 is released, the limiting plate 17 will reset, and the second magnetic block 19 will be locked inside the locking groove 10, thereby locking the locking plate 7.
[0027] The outer wall of the terminal block end 4 is provided with a foolproof component, which includes a foolproof groove 5 and a foolproof plate 6. The foolproof groove 5 is opened on the outer wall of the terminal block end 4, and the foolproof plate 6 is fixedly connected to the inner wall of the original plate end 3. There are multiple foolproof grooves 5 and foolproof plates 6. The foolproof grooves 5 at the top and bottom of the terminal block end 4 are not on the same longitudinal line. The foolproof plates 6 at the top and bottom of the inner wall of the terminal block end 4 are respectively adapted to the foolproof grooves 5 at the top and bottom of the terminal block end 4. Thus, when the terminal block end 4 is inserted into the original plate end 3, the foolproof grooves 5 and foolproof plates 6 limit the wiring so that it can only be paired in one direction, which brings great convenience to the user and avoids the user inserting it in the wrong direction when pairing.
[0028] Working principle: First, the anti-foolproof groove 5 at the top and bottom of the terminal block 4 are not on the same longitudinal line. The anti-foolproof plates 6 at the top and bottom of the inner wall of the terminal block 4 are respectively adapted to the anti-foolproof grooves 5 at the top and bottom of the terminal block 4. Thus, when the terminal block 4 is inserted into the original terminal block 3, the anti-foolproof grooves 5 and anti-foolproof plates 6 limit the wiring so that it can only be paired in one direction, which brings great convenience to the user and avoids the user from inserting it in the wrong direction when pairing.
[0029] Secondly, when the PCB board 1 is connected to the original board end 3, pressing the button 21 will cause the limiting plate 17 to move downward, and the limiting channel 18 will move downward. The locking plate 7 is inserted into the inside of the fixing groove 13, and the locking block 9 passes through the limiting channel 18. One end of the locking plate 7 will be inserted into the inside of the fixing groove 13, and the spring bead 8 will engage with the slot 14, thus playing an auxiliary positioning role.
[0030] Finally, after the PCB board 1 is connected to the original board end 3, release the button 21. The limiting plate 17 is reset by the spring 16. When the first magnetic block 11 and the second magnetic block 19 are close to each other, they will attract each other through the magnetic force. When the locking plate 7 is inserted into the fixed groove 13, one end of the locking block 9 will pass through the limiting channel 18. The second magnetic block 19 and the first magnetic block 11 attract each other. Release the button 21, the limiting plate 17 will be reset, and the second magnetic block 19 will be locked in the locking groove 10, thereby locking the locking plate 7.
[0031] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A 20-pin board-to-board connector, comprising a PCB board (1) and a motherboard end (3), characterized in that: A plastic shell (2) is provided on one side of the PCB board (1). A terminal block (4) is provided on the inner wall of the plastic shell (2). A locking plate (7) is fixedly connected to the top of the PCB board (1). A locking block (9) is fixedly connected to one end of the locking plate (7). A locking groove (10) is provided at the bottom of the locking block (9). A first magnetic block (11) is fixedly connected to the inner wall of the locking groove (10). A fixing plate (12) is fixedly connected to the top of the original board end (3). A fixing groove (13) is provided on one side of the fixing plate (12). A groove (15) is provided on the inner bottom wall of the fixing groove (13). A locking component is provided on the inner bottom wall of the groove (15).
2. A 20-pin board-to-board connector according to claim 1, characterized in that: The outer wall of the locking plate (7) is provided with a spring-loaded bead (8), and the inner wall of the fixing groove (13) is provided with a slot (14). The spring-loaded bead (8) is movably engaged with the slot (14).
3. A 20-pin board-to-board connector according to claim 1, characterized in that: The locking component includes a spring (16), the bottom of which is fixedly connected to the inner bottom wall of the groove (15), and the top of which is fixedly connected to a limiting plate (17). The limiting plate (17) is slidably sleeved with the groove (15), and the top of the limiting plate (17) is fixedly connected to a pressing plate (21).
4. A 20-pin board-to-board connector according to claim 3, characterized in that: The inner top wall of the fixed groove (13) is provided with a through groove (20), and the limiting plate (17) is slidably sleeved with the through groove (20).
5. A 20-pin board-to-board connector according to claim 4, characterized in that: A limiting channel (18) is provided on one side of the limiting plate (17), and a second magnetic block (19) is fixedly connected to the inner bottom wall of the limiting channel (18).
6. A 20-pin board-to-board connector according to claim 1, characterized in that: The outer wall of the terminal block end (4) is provided with a foolproof component, which includes a foolproof groove (5) and a foolproof plate (6). The foolproof groove (5) is opened on the outer wall of the terminal block end (4), and the foolproof plate (6) is fixedly connected to the inner wall of the original plate end (3).