Anti-impact multilayer circuit board
By designing fixed rods and protective boards inside the multi-layer circuit board and setting protective covers and interface modules outside, the problem of insufficient impact resistance of traditional multi-layer circuit boards is solved, and higher impact resistance and connection stability are achieved, improving the service life and reliability of the circuit board.
Patent Information
- Application Number
- CN202422235561.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-12
- Publication Date
- 2025-08-19
- Estimated Expiration
- 2034-09-12
AI Technical Summary
Traditional multi-layer circuit boards have insufficient impact resistance in harsh environments and are prone to damage due to external impact, affecting their application range.
Fixing rods and protective plates are designed inside the multi-layer circuit board, and protective covers and interface modules are installed outside. The protective covers are filled with sponge material, and the interface module is designed to limit structures and spring push plates to enhance connection stability.
It significantly improves the impact resistance of the circuit board, protects the internal circuit from damage, enhances the adaptability and reliability in harsh environments, and extends the service life.
Smart Images

Figure CN223246840U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of multilayer circuit boards, in particular to an impact-resistant multilayer circuit board. Background Art
[0002] Traditional single-layer and double-layer circuit boards often face problems such as insufficient wiring density, difficulty in controlling electromagnetic interference, and limited signal transmission rates when faced with complex circuit design requirements. To address these issues, multi-layer circuit boards have emerged. They not only provide higher wiring density and smaller size, but also effectively reduce signal crosstalk and electromagnetic interference, improving the overall performance of the circuit. In addition, the manufacturing process of multi-layer circuit boards continues to advance, supporting finer line widths and spacing, enabling them to meet the requirements of modern high-performance electronic devices for stability, reliability, and high-frequency and high-speed signal transmission. However, with the expansion of application scenarios, especially in harsh environments and applications with high reliability requirements, the insufficient impact resistance of traditional multi-layer circuit boards has gradually become exposed, becoming a major bottleneck affecting their application scope. Traditional methods have obvious shortcomings in impact protection, usually relying only on simple main body protection, which cannot effectively absorb and disperse impact force, resulting in circuit boards being easily damaged when subjected to external impact. Their practicality is poor and needs improvement. Utility Model Content
[0003] The purpose of this utility model is to solve the technical problems raised in the above background technology.
[0004] The utility model adopts the following technical solution: an impact-resistant multi-layer circuit board, comprising a main body, a fixing rod fixedly installed inside the main body, a protective plate fixedly installed on the surface of the fixing rod, a protective frame fixedly installed on the surface of the protective plate, a protective cover sleeved on the side of the protective plate, a bolt connected to the internal thread of the protective cover, and an interface module fixedly installed on the side of the main body.
[0005] Preferably, the bolts are threadedly connected to the protective cover. This threaded connection enhances the stability of the protective cover and ensures a tight fit between the cover and the circuit board. This design not only simplifies installation and maintenance but also enhances the protective cover's effectiveness, effectively preventing it from loosening or falling off due to impact, further improving the durability of the overall device.
[0006] Preferably, the protective frame is fixedly connected to the fixing rod. This fixed connection between the protective frame and the fixing rod enhances the support provided by the protective frame, thereby improving the overall structure's impact resistance. This design enables the protective frame to stably maintain the structural integrity of the circuit board when subjected to external impact, reducing the risk of deformation of the circuit board due to stress.
[0007] Preferably, the interior of the protective cover is filled with sponge. Here, the sponge material effectively absorbs and cushions external impact forces. As a buffering medium, the sponge material significantly reduces the degree of impact energy transmitted to the circuit board, protecting internal circuit components from damage, thereby improving the circuit board's adaptability in harsh environments.
[0008] Preferably, the side of the interface module is rotatably connected to a baffle, a clamping block is fixedly installed on the side of the baffle, a limit block is fixedly installed on the surface of the interface module, the inner sliding connection of the limit block is a limit rod, one end of the limit rod is fixedly installed with a push plate, and the side of the push plate is fixedly installed with a spring. Here, the design of the interface module makes the interface more stable when in use. By providing a rotatable baffle and clamping block on the side of the interface, the connection is strengthened. The matching design of the limit block and the limit rod prevents the baffle from falling off due to external force, thereby ensuring the normal operation of the equipment, especially in a mobile or vibrating environment, ensuring the reliability of the connection.
[0009] Preferably, the limiting rod and the block are slidably connected, and one end of the spring is fixedly connected to the limiting block. The sliding connection between the limiting rod and the block, along with the provision of the spring, provides the connection structure with a certain elastic cushioning effect. This design not only improves the stability of the interface in the event of shock or vibration, but also reduces the risk of circuit board damage caused by an unstable interface connection, further improving the lifespan and safety of the device.
[0010] Compared with the prior art, the advantages and positive effects of the present invention are:
[0011] 1. This utility model significantly enhances the circuit board's impact resistance by designing fixing rods and protective plates inside the multi-layer circuit board and providing a protective cover and interface module on the outside. The protective cover is filled with sponge to effectively absorb external impact forces, preventing direct damage to the circuit board and extending its service life.
[0012] 2. In this utility model, the interface module is designed with a limit structure and spring push plate to ensure the stability of the interface connection and prevent the interface from loosening or damage due to external forces. The overall design improves the reliability and durability of the circuit board in complex environments, and can protect it from debris, reducing damage caused by debris. It is particularly suitable for applications that require impact resistance. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 This is a schematic diagram of the overall structure of a multi-layer circuit board that is impact-resistant.
[0014] Figure 2The utility model provides a schematic diagram of the explosion structure of a limit rod, a push plate and a spring for a multi-layer circuit board that is impact-resistant;
[0015] Figure 3 This utility model proposes a multi-layer circuit board that is impact-resistant Figure 2 Enlarged view of point A in the middle.
[0016] Legend:
[0017] 1. Main body; 2. Fixing rod; 3. Protective plate; 4. Protective frame; 5. Protective cover; 6. Bolt; 7. Interface module; 8. Baffle; 9. Block; 10. Limit block; 11. Limit rod; 12. Push plate; 13. Spring. DETAILED DESCRIPTION
[0018] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below with reference to the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.
[0019] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.
[0020] Example 1
[0021] See also Figure 1-3The present invention provides a technical solution: an impact-resistant multi-layer circuit board, comprising a main body 1, a fixing rod 2 fixedly installed inside the main body 1, a protective plate 3 fixedly installed on the surface of the fixing rod 2, a protective frame 4 fixedly installed on the surface of the protective plate 3, a protective cover 5 sleeved on the side of the protective plate 3, a bolt 6 threadedly connected to the inside of the protective cover 5, and an interface module 7 fixedly installed on the side of the main body 1. By fixing the fixing rod 2 and the protective plate 3 inside the main body 1 of the multi-layer circuit board and providing the protective cover 5 on the side of the protective plate 3, multi-level physical protection is provided. The fixing rod 2 and the protective plate 3 ensure the overall stability of the circuit board structure, while the protective cover 5 provides additional impact protection for the circuit board, reduces the impact of external physical impact on the internal circuit, and improves the impact resistance of the circuit board. The bolt 6 is threadedly connected to the protective cover. The threaded connection design between the bolt 6 and the protective cover enhances the stability of the protective cover 5 and ensures a tight connection between the protective cover 5 and the circuit board. This design not only simplifies the installation and maintenance process, but also improves the protective effect of the protective cover, effectively preventing the protective cover from loosening or falling off due to impact, and further improving the durability of the overall device. The protective frame 4 is fixedly connected to the fixed rod 2. The fixed connection between the protective frame 4 and the fixed rod 2 enhances the supporting function of the protective frame 4, thereby improving the impact resistance of the entire structure. This design enables the protective frame 4 to stably maintain the structural integrity of the circuit board when subjected to external impact, reducing the risk of deformation of the circuit board due to stress. The interior of the protective cover 5 is filled with sponge, and the interior of the protective cover 5 is filled with sponge material, which effectively absorbs and cushions external impact forces. As a buffering medium, the sponge material can significantly reduce the degree of impact energy transferred to the circuit board, protecting internal circuit components from damage, thereby improving the adaptability of the circuit board in harsh environments.
[0022] Example 2
[0023] See also Figure 1-3The side of the interface module 7 is rotatably connected to a baffle 8, and a clamping block 9 is fixedly installed on the side of the baffle 8. A limit block 10 is fixedly installed on the surface of the interface module 7. The internal sliding connection of the limit block 10 is a limit rod 11. One end of the limit rod 11 is fixedly installed with a push plate 12, and the side of the push plate 12 is fixedly installed with a spring 13. The design of the interface module 7 makes the interface more stable when in use. By arranging a rotatable baffle 8 and a clamping block 9 on the side of the interface, the connection firmness is enhanced. The matching design of the limit block 10 and the limit rod 11 prevents the baffle 8 from falling off due to external force, ensuring the normal operation of the equipment, especially in a mobile or vibrating environment, ensuring the reliability of the connection. The limit rod 11 is slidably connected to the clamping block 9, one end of the spring 13 is fixedly connected to the limit block 10, the sliding connection design between the limit rod 11 and the clamping block 9, and the setting of the spring 13 make the connection structure have a certain elastic buffering effect. This design not only improves the stability of the interface under impact or vibration, but also reduces the risk of circuit board damage caused by unstable interface connection, further improving the service life and safety of the device.
[0024] Working principle: The multi-layer circuit board realizes the anti-impact function by setting a fixing rod 2 and a protective plate 3 inside its main body 1, covering the outside with a protective cover 5 and integrating an interface module 7. During operation, the sponge material in the protective cover 5 can effectively absorb external impact force and protect the internal circuit board from physical damage. The close combination of the fixing rod 2 and the protective plate 3 ensures the stability of the entire structure and further enhances the impact resistance. The interface module 7 is designed with a rotatably connected baffle 8 and a limiting mechanism. When subjected to external force, the limiting rod 11 and the spring 13 work together to ensure the firm connection of the interface and avoid loosening or disconnection due to vibration or impact. The overall structure forms a multi-level protection in terms of protection and connection, which improves the adaptability and reliability of the circuit board in complex environments.
[0025] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any other form. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes for application in other fields. However, any simple modification, equivalent change and modification of the above embodiment made according to the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.
Claims
1. A multi-layer circuit board resistant to impact, comprising a main body (1), characterized in that: A fixing rod (2) is fixedly installed inside the main body (1), a protection plate (3) is fixedly installed on the surface of the fixing rod (2), a protection frame (4) is fixedly installed on the surface of the protection plate (3), a protective cover (5) is sleeved on the side of the protection plate (3), a bolt (6) is connected to the internal thread of the protective cover (5), and an interface module (7) is fixedly installed on the side of the main body (1).
2. The impact-resistant multilayer circuit board according to claim 1, characterized in that: The bolt (6) is threadedly connected to the protective cover.
3. The impact-resistant multilayer circuit board according to claim 1, characterized in that: The protection frame (4) is fixedly connected to the fixing rod (2).
4. The impact-resistant multilayer circuit board according to claim 1, characterized in that: The interior of the protective cover (5) is filled with sponge.
5. The impact-resistant multilayer circuit board according to claim 1, characterized in that: The side of the interface module (7) is rotatably connected to a baffle (8), the side of the baffle (8) is fixedly installed with a clamping block (9), the surface of the interface module (7) is fixedly installed with a limit block (10), the interior of the limit block (10) is slidably connected to a limit rod (11), one end of the limit rod (11) is fixedly installed with a push plate (12), and the side of the push plate (12) is fixedly installed with a spring (13).
6. The impact-resistant multilayer circuit board according to claim 5, characterized in that: The limiting rod (11) is slidably connected to the clamping block (9), and one end of the spring (13) is fixedly connected to the limiting block (10).