A buckle-reinforced anti-loose flexible circuit board
Patent Information
- Application Number
- CN202522320450.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-01
- Publication Date
- 2026-10-16
- Estimated Expiration
- 2035-11-01
AI Technical Summary
现有固定方式多依赖螺栓锁附或单一粘性固定,前者易因设备振动导致螺栓松动,引发线路板位移;后者长期使用后粘性衰减,同样存在脱落风险,影响电子设备稳定性
[0015] This application structurally includes a base and a top shell. The core of this application is to stably form a single unit with the base and top shell, completely locking the circuit board body and preventing it from loosening. The base itself includes a continuous connecting groove and a mounting cavity. The mounting cavity is used to mount the pin structure, and the pin structure extends into the connecting groove. The top shell and the connecting groove are rotatably connected, and the top shell has a clearance groove relative to the connecting groove, allowing the circuit board body to pass through stably. The top shell has connecting parts on both sides of the clearance groove, extending from the top shell to the side of the base opposite to the top shell. The connecting parts have latches; when the top shell rotates and connects to the connecting groove, the latches engage with the base, forming a complete structure. The side of the latch opposite to the base has a guide portion, which facilitates the latch engaging with the base, ensuring structural stability. Through the cooperation of these structures, the top shell and base can stably fix the circuit board body, allowing the connecting structure at the end of the circuit board body to be clamped between the pin structure and the connecting groove, ensuring stable contact connections and effectively improving the user experience.
Smart Images

Figure CN224863253U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of flexible circuit board technology, and in particular to a snap-fit reinforced anti-loosening flexible circuit board. Background Technology
[0002] Due to their flexibility, flexible circuit boards often require a fixing structure for positioning and installation within electronic devices. Existing fixing methods mostly rely on bolt fastening or simple adhesive fixation. The former is prone to bolt loosening due to equipment vibration, causing circuit board displacement; the latter also poses a risk of detachment due to weakening adhesiveness over long-term use, affecting the stability of electronic devices.
[0003] In related technologies, the connection structure for mounting the end of a flexible circuit board includes a top shell and a base. The top shell is rotatably connected to the base. When the end of the circuit board extends between the two shells, the top shell will rotate and cooperate with the base to clamp the circuit board. The base and the top shell are interference-fitted to clamp the circuit board. However, the above structure lacks an effective anti-loosening mechanism under vibration. The flexible circuit board is prone to relative displacement between itself and the two shells, which may not only cause bending damage to the circuit board, but also cause solder joint detachment, signal transmission interruption and other faults, increasing equipment maintenance costs and failure probability. Utility Model Content
[0004] The main purpose of this invention is to provide a snap-fit reinforced flexible circuit board, which aims to improve the structural strength of the circuit board itself and ensure the stability of signal connections.
[0005] To achieve the above objectives, this utility model proposes a snap-fit reinforced anti-loosening flexible circuit board, comprising a base, a top shell, and a circuit board body;
[0006] The base has a connecting groove on one side and a mounting cavity on the other side. The mounting cavity is connected to the connecting groove, and multiple pin structures are arranged in an array along the width direction of the mounting cavity. The pin structures pass through the connecting groove.
[0007] One end of the top shell is rotatably connected to the inner wall of the connecting groove, and the other end is provided with a relief groove relative to the connecting groove. Connecting parts protrude on both sides of the relief groove toward the base. The connecting parts are provided with buckles along the direction from the connecting groove to the mounting cavity. The buckles abut against the base. The buckles are provided with guide parts on the side away from the base.
[0008] One end of the circuit board body abuts against the connecting groove, and the other end abuts against the pin structure. The circuit board body passes through the relief groove.
[0009] In one embodiment of this application, the connecting groove is provided with a rotating shaft relative to the top shell, and a locking structure is provided around the rotating shaft; the top shell is provided with a locking block rotatably connected to the rotating shaft, the outer periphery of the locking block is connected to the locking structure, and the locking block is an eccentric wheel or an elliptical cylinder.
[0010] In one embodiment of this application, the locking structure includes a locking groove and a spring piece. The locking groove surrounds the locking shaft, and the spring piece passes through the locking groove and is connected to the outer periphery of the locking block. It is used to gradually press the spring piece against the locking block when the top shell rotates relative to the base in the opening direction.
[0011] In one embodiment of this application, at least two spring pieces are provided opposite to each other, and both ends of the two spring pieces abut against the inner wall of the locking groove to constrain the spring pieces so that they are oriented toward the locking block.
[0012] In one embodiment of this application, one end of the pin structure is connected to a connecting pin that passes through the connecting groove, and the other end is provided with a mounting pin;
[0013] The top shell is inclined relative to the connecting pin and has an abutment part, which is connected to the relief groove; when the top shell rotates and the relief groove moves toward the base, the connecting pin is connected to the connecting groove under the action of the abutment part.
[0014] By adopting the above technical solution, this utility model has the following advantages:
[0015] This application structurally includes a base and a top shell. The core of this application is to stably form a single unit with the base and top shell, completely locking the circuit board body and preventing it from loosening. The base itself includes a continuous connecting groove and a mounting cavity. The mounting cavity is used to mount the pin structure, and the pin structure extends into the connecting groove. The top shell and the connecting groove are rotatably connected, and the top shell has a clearance groove relative to the connecting groove, allowing the circuit board body to pass through stably. The top shell has connecting parts on both sides of the clearance groove, extending from the top shell to the side of the base opposite to the top shell. The connecting parts have latches; when the top shell rotates and connects to the connecting groove, the latches engage with the base, forming a complete structure. The side of the latch opposite to the base has a guide portion, which facilitates the latch engaging with the base, ensuring structural stability. Through the cooperation of these structures, the top shell and base can stably fix the circuit board body, allowing the connecting structure at the end of the circuit board body to be clamped between the pin structure and the connecting groove, ensuring stable contact connections and effectively improving the user experience. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of the structure of the snap-in reinforced anti-loosening flexible circuit board of this utility model;
[0018] Figure 2 This is a cross-sectional view of the snap-in reinforced anti-loosening flexible circuit board of this utility model;
[0019] Figure 3 This is a schematic diagram of the top shell of the snap-in reinforced anti-loosening flexible circuit board of this utility model;
[0020] Figure 4 This is a schematic diagram of the base of the snap-in reinforced anti-loosening flexible circuit board of this utility model.
[0021] Explanation of icon numbers:
[0022] 1. Base; 11. Connecting groove; 12. Rotating shaft; 13. Mounting cavity; 2. Locking structure; 21. Locking groove; 22. Spring piece; 3. Pin structure; 31. Connecting pin; 4. Top shell; 41. Locking block; 42. Leaving groove; 43. Connecting part; 44. Buckle; 45. Abutting part; 5. Circuit board body.
[0023] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0024] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.
[0025] The following is in conjunction with the appendix Figures 1 to 4 The present invention will be further described below.
[0026] To achieve the above objectives, this utility model proposes a snap-fit 44 reinforced anti-loosening flexible circuit board, including a base 1, a top shell 4, and a circuit board body 5;
[0027] The base 1 has a connecting groove 11 on one side and a mounting cavity 13 on the other side. The mounting cavity 13 is connected to the connecting groove 11, and multiple pin structures 3 are arranged in an array along the width direction of the mounting cavity 13. The pin structures 3 pass through the connecting groove 11.
[0028] One end of the top shell 4 is rotatably connected to the inner wall of the connecting groove 11, and the other end is provided with a relief groove 42 relative to the connecting groove 11. The two sides of the relief groove 42 are provided with connecting parts 43 protruding towards the base 1. The connecting parts 43 are provided with buckles 44 protruding along the direction from the connecting groove 11 to the mounting cavity 13. The buckles 44 abut against the base 1, and the buckles 44 are provided with guide parts on the side away from the base 1.
[0029] One end of the circuit board body 5 abuts against the connecting groove 11, and the other end abuts against the pin structure 3. The circuit board body 5 passes through the relief groove 42.
[0030] This application structurally includes a base 1 and a top shell 4. The core of this application is to stably form a single unit with the base 1 and top shell 4, completely locking the circuit board body 5 and preventing it from loosening. The base 1 itself includes a continuous connecting groove 11 and a mounting cavity 13. The mounting cavity 13 is used to mount the pin structure 3, and the pin structure 3 extends into the connecting groove 11. The top shell 4 and the connecting groove 11 are rotatably connected. The top shell 4 has a clearance groove 42 relative to the connecting groove 11, which allows the circuit board body 5 to pass through stably. The top shell 4 has connecting portions 43 on both sides of the clearance groove 42, which can extend the top shell 4. The shell 4 and the base 1 are located on the side opposite to the top shell 4, and the connecting part 43 is provided with a buckle 44. When the top shell 4 rotates and is connected to the connecting groove 11, the buckle 44 is engaged with the base 1, forming a complete structure. The buckle 44 is inclined with a guide part on the side opposite to the base 1. The guide part can facilitate the buckle 44 to be engaged with the base 1, ensuring structural stability. Through the cooperation of the above structures, the top shell 4 and the base 1 can stably fix the circuit board body 5, and the connection structure at the end of the circuit board body 5 can be clamped between the pin structure 3 and the connecting groove 11, ensuring the stability of the contact connection and effectively improving the user experience.
[0031] In one embodiment of this application, the connecting groove 11 is provided with a rotating shaft 12 relative to the top shell 4, and a locking structure 2 is provided around the rotating shaft 12; the top shell 4 is provided with a locking block 41 rotatably connected to the rotating shaft 12, the outer periphery of the locking block 41 is connected to the locking structure 2, and the locking block 41 is an eccentric wheel or an elliptical cylinder.
[0032] The rotating shaft 12 is the central axis of rotation of the top shell 4. The locking structure 2 surrounds the rotating shaft 12. The top shell 4 is provided with a locking block 41 relative to the rotating shaft 12. The locking block 41 is wrapped around the outer periphery of the rotating shaft 12. The outer periphery of the locking block 41 is connected to the locking structure 2, so that the locking structure 2 can lock the locking block 41 when the top shell 4 rotates, thereby preventing the top shell 4 from shaking. This makes it easier to install the circuit board body 5 after opening the top shell 4. After installation, the cover can be closed, which can ensure the efficiency of the installation of the circuit board body 5.
[0033] The locking block 41 is an eccentric wheel or an elliptical cylinder. As the top shell 4 rotates, the locking block 41 will abut against the locking structure 2 to ensure the stability of the installation.
[0034] In one embodiment of this application, the locking structure 2 includes a locking groove 21 and a spring piece 22. The locking groove 21 surrounds the locking shaft, and the spring piece 22 passes through the locking groove 21 and is connected to the outer periphery of the locking block 41. When the top shell 4 rotates relative to the base 1 in the opening direction, the spring piece 22 gradually presses against the locking block 41.
[0035] The locking structure 2 includes a locking groove 21 and a spring piece 22. The locking groove 21 facilitates the installation of the spring piece 22 and can wrap around the locking block 41 to protect the structure of the locking block 41 and prevent damage to the rotating shaft 12 inside the locking block 41. The spring piece 22 can easily press against the top shell 4 while also being easy to restore, thus improving its service life.
[0036] In one embodiment of this application, at least two spring pieces 22 are provided opposite each other, and both ends of the two spring pieces 22 abut against the inner wall of the locking groove 21 to constrain the spring pieces 22 so that they are oriented toward the locking block 41.
[0037] Two springs 22 are provided and have a certain degree, while the locking block 41 is an elliptical cylinder. When the top shell 4 is pressed against the base 1, the two springs 22 will clamp the locking block 41, which can work with the buckle 44 to ensure and improve the structural strength of the entire flexible circuit board end.
[0038] In one embodiment of this application, one end of the pin structure 3 is connected to a connection pin 31 that passes through the connection groove 11, and the other end is provided with a mounting pin;
[0039] The top shell 4 is inclined relative to the connecting pin 31 and has an abutment part 45, which is connected to the relief groove 42. When the top shell 4 rotates and the relief groove 42 moves toward the base 1, the connecting pin 31 is connected to the connecting groove 11 under the action of the abutment part 45.
[0040] The pin structure 3 is made of elastic metal material. The pins can be installed to facilitate the connection of the circuit board into the circuit. The connecting pin 31 is used to connect the connecting structure of the circuit board body 5. The abutment part 45 is located in the top shell 4 and is inclined. As the relief groove 42 moves toward the connecting groove 11, the abutment part 45 can press the connecting pin 31 to ensure an efficient and stable connection between the pin structure 3 and the circuit board body 5.
[0041] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.
[0042] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A snap-fit reinforced anti-loosening flexible circuit board, characterized in that, include: The base has a connecting groove on one side and a mounting cavity on the other side. The mounting cavity is connected to the connecting groove, and multiple pin structures are arranged in an array along the width direction of the mounting cavity. The pin structures pass through the connecting groove. The top shell has one end rotatably connected to the inner wall of the connecting groove, and the other end is provided with a relief groove relative to the connecting groove. The two sides of the relief groove are provided with connecting parts protruding towards the base. The connecting parts are provided with buckles protruding along the direction from the connecting groove to the mounting cavity. The buckles abut against the base. The buckles are provided with guide parts inclined on the side away from the base. The circuit board body has one end abutting against the connecting groove and the other end abutting against the pin structure, and the circuit board body passes through the relief groove.
2. The snap-fit reinforced anti-loosening flexible circuit board according to claim 1, characterized in that, The connecting groove is provided with a rotating shaft relative to the top shell, and a locking structure is provided around the rotating shaft; the top shell is provided with a locking block rotatably connected to the rotating shaft, and the outer periphery of the locking block is connected to the locking structure. The locking block is an eccentric wheel or an elliptical cylinder.
3. The snap-fit reinforced anti-loosening flexible circuit board according to claim 2, characterized in that, The locking structure includes a locking groove and a spring piece. The locking groove surrounds the locking shaft, and the spring piece passes through the locking groove and is connected to the outer periphery of the locking block. It is used to make the spring piece gradually press against the locking block when the top shell rotates relative to the base in the opening direction.
4. The snap-fit reinforced anti-loosening flexible circuit board according to claim 3, characterized in that, At least two spring pieces are provided opposite each other, and both ends of the two spring pieces abut against the inner wall of the locking groove to constrain the spring pieces so that they are oriented toward the locking block.
5. A snap-fit reinforced anti-loosening flexible circuit board according to claim 1, characterized in that, One end of the pin structure is connected to a connecting pin that passes through the connecting groove, and the other end is provided with a mounting pin. The top shell is inclined relative to the connecting pin and has an abutment part, which is connected to the relief groove; when the top shell rotates and the relief groove moves toward the base, the connecting pin is connected to the connecting groove under the action of the abutment part.