PCB (printed circuit board) capable of preventing connection wire from falling off
By setting a snap-fit fixing component on the PCB circuit board, and using structures such as a fixing disc, spring and threaded bracket to fix the plug and wire harness, the problem of wire harness loosening and falling off is solved, and a stable connection is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHENGDU TIANBOCHUANG TECH CO LTD
- Filing Date
- 2025-06-19
- Publication Date
- 2026-05-12
AI Technical Summary
When plugging in existing PCB circuit boards, the wiring harness is not fixed, and after long-term use, it is easy for it to loosen and fall off, resulting in poor contact of the plug.
The plug assembly is secured to the front and back using snap-fit fastening components. The plug and wire harness are fixed in place by means of a fixing plate, spring, fixing post and threaded bracket to prevent loosening.
It effectively prevents wiring from coming loose, ensures a stable connection between the plug and the wiring harness, and avoids poor contact problems.
Smart Images

Figure CN224233067U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of PCB circuit board technology, and specifically to a PCB circuit board that prevents wires from falling off. Background Technology
[0002] Circuit boards are also known as ceramic circuit boards, alumina ceramic circuit boards, aluminum nitride ceramic circuit boards, PCBs, aluminum substrate boards, high-frequency boards, thick copper boards, impedance boards, ultra-thin circuit boards, and printed circuit boards. Circuit boards miniaturize and visualize circuits, playing a crucial role in the mass production of fixed circuits and optimizing the layout of electrical appliances. A circuit board, also called a printed circuit board, is a highly reliable and flexible printed circuit board made with polyimide or polyester film as the substrate. It features high wiring density, light weight, and thinness, and is mainly used in many products such as mobile phones, laptops, PDAs, digital cameras, and LCMs.
[0003] When plugging in a connector, the existing PCB circuit board cannot secure the wiring harness. Over time, the wiring harness may loosen and fall off, leading to poor contact in the connector. Therefore, there is an urgent need for a PCB circuit board that prevents wiring from falling off and overcomes the above-mentioned defects. Utility Model Content
[0004] The purpose of this invention is to provide a PCB circuit board that prevents wires from falling off, thus solving 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 for preventing wires from falling off, comprising a PCB circuit board body, a snap-fit fixing assembly, a socket body, a wire harness fixing assembly, and a plug assembly. The socket body is fixedly installed on the right side of the top of the PCB circuit board body. The snap-fit fixing assemblies are all disposed on the front and back of the socket body. The wire harness fixing assembly is disposed on the top of the socket body. The plug assembly is disposed on the top of the wire harness fixing assembly. The wire harness fixing assembly includes a mounting frame, a threaded bracket, a second sliding groove, a second slider, a fixing plate, and a rubber plate. The snap-fit fixing assembly includes a fixing block, a fixing round plate, a spring, a fixing post, a first sliding groove, a first slider, and a receiving groove. The plug assembly includes a wire harness body, a plug body, an L-shaped rod, and a fixing groove.
[0006] Furthermore, the fixed block has an internal receiving groove, and a fixed column is provided inside the receiving groove. The top and bottom of the fixed column are both provided with first sliding grooves.
[0007] Furthermore, a first slider is slidably connected inside the first groove, and the outer side of the first slider is fixedly connected to the inner cavity of the receiving groove. A fixed circular plate is fixedly installed on the side of the fixed column that is relatively far away from the fixed column.
[0008] Furthermore, three springs are fixedly installed on the side of the fixed circular plate that is relatively close to each other, and the side of the springs that is relatively close to each other is fixedly connected to the side of the fixed block that is relatively far away from each other. An installation frame is fixedly installed on the top of the side of the fixed block that is relatively close to each other.
[0009] Furthermore, a second sliding groove is provided on both sides of the inner cavity of the mounting frame, and a second slider is slidably connected inside the second sliding groove. A fixing plate is fixedly installed on the side of the second slider that is relatively close to it.
[0010] Furthermore, a rubber plate is fixedly installed on the left side of the fixing plate, and a threaded bracket is rotatably connected inside the mounting frame via a thread, with the left side of the threaded bracket rotatably connected to the right side of the fixing plate via a bearing.
[0011] Furthermore, the L-shaped rods are all fixedly installed on the front and back of the plug body, the fixing grooves are opened inside the L-shaped rods, and the wire harness body is fixedly installed on the top of the plug body.
[0012] In summary, due to the adoption of the above-mentioned technologies, the beneficial effects of this utility model are:
[0013] This invention uses a snap-fit fixing component to secure the front and back of the plug assembly, and also secures the left and right sides of the plug assembly. In use, the plug body is first inserted into the inner cavity of the socket body. Then, the fixing plate is released, and under the action of a spring, the fixing plate moves the fixing post inward. The fixing post passes through the fixing groove into the interior of the L-shaped rod to fix the plug body. After fixing, the threaded bracket is rotated, which moves the fixing plate to the left. The fixing plate then moves the rubber plate to the left, thereby fixing the wire harness body and preventing it from loosening and falling off. This invention has the advantage of preventing wire detachment and solves the problem in existing PCB circuit boards where, due to the inability to fix the wire harness when plugging in, the wire harness loosens and falls off over time, leading to poor plug contact. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model;
[0015] Figure 2 This is a schematic diagram of the cross-sectional structure of the wire harness fixing assembly of this utility model;
[0016] Figure 3 This is a schematic diagram of the side cross-sectional structure of the snap-fit fixing component of this utility model;
[0017] Figure 4 This is a schematic diagram of the plug assembly structure of this utility model.
[0018] In the diagram: 1. PCB circuit board body; 2. Clip-on fixing assembly; 21. Fixing block; 22. Fixing round plate; 23. Spring; 24. Fixing post; 25. First slide groove; 26. First slider; 27. Receiving groove; 3. Socket body; 4. Wire harness fixing assembly; 41. Mounting frame; 42. Threaded bracket; 43. Second slide groove; 44. Second slider; 45. Fixing plate; 46. Rubber plate; 5. Plug assembly; 51. Wire harness body; 52. Plug body; 53. L-shaped rod; 54. Fixing groove. Detailed Implementation
[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.
[0020] This utility model provides, for example Figure 1-4 As shown, a PCB circuit board for preventing wires from falling off includes a PCB circuit board body 1, a snap-fit fixing assembly 2, a socket body 3, a wire harness fixing assembly 4, and a plug assembly 5. The socket body 3 is fixedly installed on the right side of the top of the PCB circuit board body 1. The snap-fit fixing assembly 2 is provided on the front and back of the socket body 3. The wire harness fixing assembly 4 is provided on the top of the socket body 3. The plug assembly 5 is provided on the top of the wire harness fixing assembly 4. The wire harness fixing assembly 4 includes a mounting frame 41, a threaded bracket 42, a second sliding groove 43, a second slider 44, a fixing plate 45, and a rubber plate 46. The snap-fit fixing assembly 2 includes a fixing block 21, a fixing round plate 22, a spring 23, a fixing post 24, a first sliding groove 25, a first slider 26, and a receiving groove 27. The plug assembly 5 includes a wire harness body 51, a plug body 52, an L-shaped rod 53, and a fixing groove 54.
[0021] More specifically, the front and back of the plug assembly 5 are fixed by setting the snap-fit fixing component 2, and the left and right sides of the plug assembly 5 are fixed by setting the snap-fit fixing component 2. In use, the plug body 52 is first inserted into the inner cavity of the socket body 3. Then, the fixing round plate 22 is released. Under the action of the spring 23, the fixing round plate 22 drives the fixing post 24 to move inward. The fixing post 24 passes through the fixing groove 54 and enters the interior of the L-shaped rod 53 to fix the plug body 52. After fixing, the threaded bracket 42 is rotated. The threaded bracket 42 drives the fixing plate 45 to move to the left. The fixing plate 45 drives the rubber plate 46 to move to the left, thereby fixing the wire harness body 51 and preventing it from loosening and falling off. It has the advantage of preventing the wiring from falling off.
[0022] In some embodiments, the fixing block 21 has an internal receiving groove 27, and a fixing post 24 is provided inside the receiving groove 27. The top and bottom of the fixing post 24 are provided with first sliding grooves 25. More specifically, the first sliding groove 25 is used to limit the first slider 26, and the receiving groove 27 is used to receive the fixing post 24.
[0023] In some embodiments, a first slider 26 is slidably connected inside the first groove 25, and the outer side of the first slider 26 is fixedly connected to the inner cavity of the receiving groove 27. A fixed circular plate 22 is fixedly installed on the side of the fixed column 24 that is relatively far away. More specifically, the fixed column 24 is limited by setting the first slider 26 to prevent the fixed column 24 from shaking during movement.
[0024] In some embodiments, three springs 23 are fixedly installed on the relatively close side of the fixed circular plate 22, and the relatively close side of the springs 23 is fixedly connected to the relatively far side of the fixed block 21. The top of the relatively close side of the fixed block 21 is fixedly installed with an installation frame 41. More specifically, the fixed circular plate 22 is reset by setting the springs 23.
[0025] In some embodiments, a second slide groove 43 is provided on both sides of the inner cavity of the mounting frame 41. A second slider 44 is slidably connected inside the second slide groove 43. A fixing plate 45 is fixedly installed on the side of the second slider 44 that is relatively close to it. More specifically, the second slide groove 43 is used to limit the second slider 44 to prevent the second slider 44 from shaking during movement. The second slider 44 is also used to limit the fixing plate 45 to prevent the fixing plate 45 from shaking during movement.
[0026] In some embodiments, a rubber plate 46 is fixedly installed on the left side of the fixing plate 45, and a threaded bracket 42 is rotatably connected to the inside of the mounting frame 41 via a thread. The left side of the threaded bracket 42 is rotatably connected to the right side of the fixing plate 45 via a bearing. More specifically, by setting the threaded bracket 42 to move the position of the fixing plate 45, the rubber plate 46 is indirectly used to limit the wire harness body 51.
[0027] In some embodiments, the L-shaped rods 53 are all fixedly installed on the front and back of the plug body 52, the fixing groove 54 is opened inside the L-shaped rods 53, and the wire harness body 51 is fixedly installed on the top of the plug body 52. More specifically, the fixing post 24 is moved by setting the fixing round plate 22, and at the same time cooperates with the spring 23, so that the fixing post 24 passes through the fixing groove 54 into the interior of the L-shaped rod 53 to fix the plug body 52.
[0028] Working principle:
[0029] In use: The front and back of the plug assembly 5 are fixed by setting the snap-fit fixing component 2, and the left and right sides of the plug assembly 5 are fixed by setting the snap-fit fixing component 2. In use, first insert the plug body 52 into the inner cavity of the socket body 3, then loosen the fixing round plate 22. Under the action of the spring 23, the fixing round plate 22 drives the fixing post 24 to move inward. The fixing post 24 passes through the fixing groove 54 and enters the interior of the L-shaped rod 53 to fix the plug body 52. After fixing, rotate the threaded bracket 42. The threaded bracket 42 drives the fixing plate 45 to move to the left. The fixing plate 45 drives the rubber plate 46 to move to the left, thereby fixing the wire harness body 51 and preventing it from loosening and falling off. It has the advantage of preventing the wiring from falling off.
[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
Claims
1. A PCB circuit board for preventing wires from detaching, characterized in that: The device includes a PCB circuit board body (1), a snap-fit fixing assembly (2), a socket body (3), a wire harness fixing assembly (4), and a plug assembly (5). The socket body (3) is fixedly installed on the right side of the top of the PCB circuit board body (1). The snap-fit fixing assemblies (2) are all located on the front and back of the socket body (3). The wire harness fixing assembly (4) is located on the top of the socket body (3). The plug assembly (5) is located on the top of the wire harness fixing assembly (4). The wire harness fixing assembly (4) includes a mounting frame (41), a threaded bracket (42), a second slide groove (43), a second slider (44), a fixing plate (45), and a rubber plate (46). The snap-fit fixing assembly (2) includes a fixing block (21), a fixing round plate (22), a spring (23), a fixing post (24), a first slide groove (25), a first slider (26), and a receiving groove (27). The plug assembly (5) includes a wire harness body (51), a plug body (52), an L-shaped rod (53), and a fixing groove (54).
2. The PCB circuit board for preventing wire detachment according to claim 1, characterized in that: The fixed block (21) has a receiving groove (27) inside, and a fixed column (24) is provided inside the receiving groove (27). The top and bottom of the fixed column (24) are provided with first sliding grooves (25).
3. The PCB circuit board for preventing wire detachment according to claim 1, characterized in that: The first slide groove (25) is slidably connected to the first slider (26), the outer side of the first slider (26) is fixedly connected to the inner cavity of the receiving groove (27), and a fixed circular plate (22) is fixedly installed on the side of the fixed column (24) that is relatively far away from it.
4. The PCB circuit board for preventing wire detachment according to claim 1, characterized in that: Three springs (23) are fixedly installed on the relatively close side of the fixed circular plate (22). The relatively close side of the springs (23) is fixedly connected to the relatively far side of the fixed block (21). An installation frame (41) is fixedly installed on the top of the relatively close side of the fixed block (21).
5. The PCB circuit board for preventing wire detachment according to claim 1, characterized in that: The inner cavity of the mounting frame (41) is provided with a second slide groove (43) on both sides. A second slider (44) is slidably connected inside the second slide groove (43). A fixing plate (45) is fixedly installed on the side of the second slider (44) that is relatively close to it.
6. The PCB circuit board for preventing wire detachment according to claim 1, characterized in that: A rubber plate (46) is fixedly installed on the left side of the fixing plate (45), and a threaded bracket (42) is rotatably connected inside the mounting frame (41) by a thread. The left side of the threaded bracket (42) is rotatably connected to the right side of the fixing plate (45) by a bearing.
7. The PCB circuit board for preventing wire detachment according to claim 1, characterized in that: The L-shaped rods (53) are all fixedly installed on the front and back of the plug body (52), the fixing groove (54) is opened inside the L-shaped rods (53), and the wire harness body (51) is fixedly installed on the top of the plug body (52).