Bending-resistant circuit board
By installing a U-shaped frame on the circuit board and using a specific material combination, the problem of circuit boards being prone to break under bending or external force is solved, and the overall stiffness and load-bearing capacity are achieved, which improves the reliability and stability of circuit boards.
Patent Information
- Application Number
- CN202421184880.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-28
- Publication Date
- 2025-03-07
- Estimated Expiration
- 2034-05-28
AI Technical Summary
Existing circuit boards are prone to breakage or damage when subjected to bending or external forces, limiting their reliability and durability in some applications.
A bending-resistant circuit board is designed, and the first U-shaped frame and the second U-shaped frame are installed on both sides of the circuit board body, and the combined structure of screws and through holes is used to fix the U-shaped frame outside the circuit board body. At the same time, glass fiber reinforced plastic or high-conducting aluminum substrate and electrolytic copper or rolled copper materials are used to enhance the overall stiffness and bearing capacity of the circuit board.
With this design, the circuit board can maintain stability and reliability when bending, enhancing its overall stiffness and load-bearing capacity and avoiding the risk of breakage or damage.
Smart Images
Figure CN222582648U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of circuit boards, in particular to a circuit board that is resistant to bending. Background Art
[0002] A circuit board is a substrate used to support and connect electronic components. It is usually made of insulating material and covered with conductive paths on the surface, to which electronic components are connected. Circuit boards are a core component of electronic devices, providing a reliable way to assemble and connect electronic components while providing electrical connections and mechanical support.
[0003] However, existing circuit board designs are often prone to breakage or damage when subjected to bending or external forces, which limits their reliability and durability in certain applications. In response to the above problems, the inventors propose a bending-resistant circuit board to solve the above problems. Utility Model Content
[0004] In order to solve the problem that a circuit board is easily broken or damaged when subjected to bending or external force, the purpose of the utility model is to provide a circuit board that is resistant to bending.
[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions: a bending-resistant circuit board, comprising a circuit board body, a first U-shaped frame and a second U-shaped frame are respectively clamped on both sides of the circuit board body, the tops of the first U-shaped frame and the second U-shaped frame are both provided with symmetrically distributed positioning holes, screws are arranged inside the positioning holes, symmetrically distributed through holes are both provided on both sides of the top of the circuit board body, the bottom ends of the screws movably penetrate the through holes and the threads extend to the bottom of the inner wall of the first U-shaped frame, the inner side of the first U-shaped frame is fixedly connected to a fixed frame, the inner side of the second U-shaped frame is fixedly connected to an extension rod, the extension rod is slidably clamped in the fixed frame, the circuit board body comprises a substrate, one side of the substrate is fixedly connected to a copper foil, the side of the copper foil away from the substrate is fixedly connected to a solder resist layer, the substrate is made of glass fiber reinforced plastic or a high-conductivity aluminum substrate, the solder resist layer is made of electrolytic copper or rolled copper, and the copper foil is made of hot melt adhesive or cold sol adhesive by hot pressing or cold pressing.
[0006] Preferably, both sides of the fixing frame are provided with limiting grooves, both sides of one end of the extension rod are fixedly connected with limiting columns, and the limiting columns are slidably engaged in the limiting grooves.
[0007] Preferably, the outer sides of the four corners of the circuit board body are wrapped with rubber sleeves.
[0008] Compared with the prior art, the beneficial effects of the utility model are:
[0009] By pulling the extension rod along the inside of the fixed frame, the extension rod is driven to slide along the inside of the fixed frame, the distance between the first U-shaped frame and the second U-shaped frame is adjusted, and then the first U-shaped frame and the second U-shaped frame are respectively clamped to the two ends of the circuit board body, and then the bottom end of the screw is inserted into the inside of the positioning hole and moves through the through hole. The thread extends to the bottom end of the inner wall of the first U-shaped frame, thereby fixing the first U-shaped frame and the second U-shaped frame to the outside of the circuit board body, further enhancing the overall rigidity and load-bearing capacity of the circuit board. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0011] Figure 1 It is a schematic diagram of the overall structure of the utility model.
[0012] Figure 2 It is a schematic diagram of the bottom structure of the circuit board body in the utility model.
[0013] Figure 3 It is a schematic diagram of the overall split structure of the utility model.
[0014] Figure 4 For this utility model Figure 3 Enlarged view of point A in the middle.
[0015] Figure 5 It is a structural schematic diagram of the circuit board body in the utility model.
[0016] In the figure: 1. circuit board body; 2. first U-shaped frame; 3. second U-shaped frame; 4. positioning hole; 5. screw; 6. through hole; 7. extension rod; 8. fixing frame; 9. limiting groove; 10. limiting column; 11. substrate; 12. copper foil; 13. solder mask; 14. rubber sleeve. DETAILED DESCRIPTION
[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0018] Example: Figure 1-5As shown, the utility model provides a bending-resistant circuit board, comprising a circuit board body 1, a first U-shaped frame 2 and a second U-shaped frame 3 are respectively clamped on both sides of the circuit board body 1, symmetrically distributed positioning holes 4 are opened on the tops of the first U-shaped frame 2 and the second U-shaped frame 3, screws 5 are arranged inside the positioning holes 4, symmetrically distributed through holes 6 are opened on both sides of the top of the circuit board body 1, the bottom ends of the screws 5 movably penetrate the through holes 6 and the threads extend to the bottom of the inner wall of the first U-shaped frame 2, the inner side of the first U-shaped frame 2 is fixedly connected with a fixing frame 8, the inner side of the second U-shaped frame 3 is fixedly connected with an extension rod 7, and the extension rod 7 is slidably clamped in the fixing frame 8;
[0019] The circuit board body 1 comprises a substrate 11 , a copper foil 12 is fixedly connected to one side of the substrate 11 , and a solder resist layer 13 is fixedly connected to the side of the copper foil 12 away from the substrate 11 .
[0020] The substrate 11 is made of glass fiber reinforced plastic or high-conductivity aluminum substrate.
[0021] By adopting the above technical solution, the substrate 11 is made of glass fiber reinforced plastic or high-conductivity aluminum substrate, which provides support and connection for circuit elements and also provides necessary support and stability for the anti-bending structure, thereby ensuring the stability and reliability of the circuit board when bending.
[0022] The solder resist layer 13 is made of electrolytic copper or rolled copper.
[0023] By adopting the above technical solution, the solder resist layer 13 is made of electrolytic copper or rolled copper, and has excellent conductive properties to ensure stable operation and efficient transmission of the circuit, which is crucial to the performance of electronic equipment.
[0024] The copper foil 12 is made of hot melt adhesive or cold melt adhesive by hot pressing or cold pressing.
[0025] By adopting the above technical solution, the copper foil 12 can effectively protect the wires, pads and other components on the circuit board from erosion and damage by the external environment by using hot melt adhesive or cold melt adhesive. Especially in the anti-bending design, the circuit board is easily affected by external forces, and the solder mask layer can provide a protective shell for the circuit, reduce the impact of external factors on the circuit, and improve the reliability and stability of the circuit board.
[0026] Limiting grooves 9 are provided on both sides of the fixing frame 8 , and limiting posts 10 are fixedly connected to both sides of one end of the extension rod 7 , and the limiting posts 10 are slidably engaged in the limiting grooves 9 .
[0027] By adopting the above technical solution and providing the limiting groove 9 , it is convenient to limit the limiting column 10 and prevent the limiting column 10 from sliding out of the limiting groove 9 .
[0028] The outer sides of the four corners of the circuit board body 1 are wrapped with rubber sleeves 14 .
[0029] By adopting the above technical solution and providing the rubber sleeve 14, a certain buffering effect can be achieved when the circuit board is subjected to bending or external force.
[0030] Working principle: When the circuit board is in use, according to the lateral length of the circuit board body 1, the elongated rod 7 is pulled along the inside of the fixed frame 8 to drive the elongated rod 7 to slide along the inside of the fixed frame 8, and the distance between the first U-shaped frame 2 and the second U-shaped frame 3 is adjusted. Then, the first U-shaped frame 2 and the second U-shaped frame 3 are respectively clamped to the two ends of the circuit board body 1, and then the bottom end of the screw 5 is inserted into the inside of the positioning hole 4 and movably penetrates the through hole 6, and the thread extends to the bottom end of the inner wall of the first U-shaped frame 2, so that the first U-shaped frame 2 and the second U-shaped frame 3 are fixed to the outside of the circuit board body 1, so as to enhance the overall rigidity and load-bearing capacity of the circuit board;
[0031] The substrate 11 is made of glass fiber reinforced plastic or high-conductivity aluminum substrate, which provides support and connection for circuit elements and also provides necessary support and stability for the anti-bending structure, thereby ensuring the stability and reliability of the circuit board when it is bent;
[0032] The solder resist layer 13 is made of electrolytic copper or rolled copper, and has excellent electrical conductivity, which ensures stable operation and efficient transmission of the circuit, and is crucial to the performance of the electronic equipment;
[0033] The copper foil 12 can effectively protect the wires, pads and other components on the circuit board from erosion and damage by the external environment by using hot melt adhesive or cold melt adhesive. Especially in the anti-bending design, the circuit board is easily affected by external forces, and the solder mask can provide a protective shell for the circuit, reduce the impact of external factors on the circuit, and improve the reliability and stability of the circuit board.
[0034] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.
Claims
1. A bending-resistant circuit board, comprising a circuit board body (1), characterized in that: The first U-shaped frame (2) and the second U-shaped frame (3) are respectively clamped on both sides of the circuit board body (1); the tops of the first U-shaped frame (2) and the second U-shaped frame (3) are provided with symmetrically distributed positioning holes (4); screws (5) are arranged inside the positioning holes (4); the tops of the circuit board body (1) are provided with symmetrically distributed through holes (6); the bottom ends of the screws (5) are movably inserted through the through holes (6) and the threads extend to the bottom of the inner wall of the first U-shaped frame (2); the inner side of the first U-shaped frame (2) is fixedly connected to a fixed frame (8); the inner side of the second U-shaped frame (3) is fixedly connected to an extension rod (7); the extension rod (7) is slidably clamped in the fixed frame (8); The circuit board body (1) comprises a substrate (11), one side of the substrate (11) is fixedly connected to a copper foil (12), and the side of the copper foil (12) away from the substrate (11) is fixedly connected to a solder resist layer (13).
2. A bending-resistant circuit board as claimed in claim 1, characterized in that: The substrate (11) is made of glass fiber reinforced plastic or a high-conductivity aluminum substrate.
3. A bending-resistant circuit board as claimed in claim 1, characterized in that: The solder resist layer (13) is made of electrolytic copper or rolled copper.
4. A bending-resistant circuit board as claimed in claim 1, characterized in that: The copper foil (12) is made of hot melt adhesive or cold melt adhesive by hot pressing or cold pressing.
5. The anti-bending circuit board according to claim 1, characterized in that: Limiting grooves (9) are provided on both sides of the fixed frame (8), and limiting posts (10) are fixedly connected to both sides of one end of the extension rod (7), and the limiting posts (10) are slidably engaged in the limiting grooves (9).
6. The anti-bending circuit board according to claim 1, characterized in that: The outer sides of the four corners of the circuit board body (1) are wrapped with rubber sleeves (14).