Stepped edge delamination resistant structure for thin PCBs

By setting up elastic positioning, clamping, and self-adaptive components at the edge of the PCB to absorb impact force and adjust positioning, the stress concentration and size adaptability problems of traditional PCB edge protection structures are solved, achieving the effect of preventing delamination and breakage.

CN224401880UActive Publication Date: 2026-06-23HUANGSHI C-FLEX ELECTRONICS TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUANGSHI C-FLEX ELECTRONICS TECH CO LTD
Filing Date
2025-07-04
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

Traditional PCB edge protection structures cannot effectively buffer against external impacts, leading to stress concentration, cracks, or delamination. Furthermore, they cannot adapt to dimensional changes caused by processing errors and thermal expansion.

Method used

It adopts a stepped edge anti-delamination structure, including an elastic positioning component, a driven clamping component, a dynamic adaptive component, and an elastic support component. It absorbs impact force through elastic deformation, prevents stress concentration, and adjusts the positioning position in real time to adapt to size changes.

Benefits of technology

It effectively reduces damage to PCB edges, avoids delamination or breakage, adapts to changes in workpiece gaps, and improves the flexibility and stability of the structure.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides thin PCB's stepped edge anti delamination structure, include: anti delamination frame structure, the anti delamination frame structure both ends inner wall installs elastic positioning assembly, the elastic positioning assembly inner wall installs driven clamping assembly, the anti delamination frame structure both ends install dynamic self -adaptation component, the anti delamination frame structure both ends install elastic support assembly. The utility model provides thin PCB's stepped edge anti delamination structure, through the cooperation and use of the elastic positioning assembly and driven clamping assembly of both ends setting, can pre -absorb external impact force through self -deformation, and converts rigid collision into elastic buffer, and driven clamping assembly exerts reverse constraint force to elastic positioning assembly after buffering, limits its excessive deformation. Meanwhile, through the dynamic self -adaptation component and elastic support assembly of setting, can real -time adjustment structure's positioning position, cooperates the flexible compensation of elastic support assembly, can adapt the clearance change of workpiece.
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Description

Technical Field

[0001] This utility model relates to the field of electronic equipment technology, and in particular to a stepped edge anti-delamination structure for thin PCBs. Background Technology

[0002] With the rapid development of technologies such as 5G communication, artificial intelligence, and the Internet of Things, electronic devices are evolving towards miniaturization, integration, and high performance. Printed circuit boards (PCBs), as the carriers of electronic components and the bridges for electrical connections, are becoming increasingly widespread and crucial. In consumer electronics, automotive electronics, aerospace, and other fields, the demand for thin, multi-layered, and high-density PCBs continues to grow.

[0003] Traditional PCB edge protection often uses rigid frames or shells, such as metal frames or hard plastic edge protectors. When subjected to external impact, rigid structures cannot effectively buffer the impact, and the impact force acts directly on the PCB edge. This not only fails to provide protection but may also cause cracks or delamination of the PCB due to stress concentration. Furthermore, the positioning devices are mostly fixed structures and cannot adapt to dimensional changes in the PCB edge caused by factors such as processing errors and thermal expansion.

[0004] Therefore, it is necessary to provide a stepped edge anti-delamination structure for thin PCBs to solve the above-mentioned technical problems. Utility Model Content

[0005] This invention provides a stepped edge anti-delamination structure for thin PCBs, which solves the problems of existing structures being unable to effectively disperse and buffer rigid impacts, easily causing cracks and delamination in the workpiece, and being unable to adapt to different workpiece size variations.

[0006] To solve the above-mentioned technical problems, the present invention provides a stepped edge anti-delamination structure for thin PCBs, comprising: an anti-delamination frame structure, wherein elastic positioning components are installed on the inner walls of both ends of the anti-delamination frame structure, the elastic positioning components are used for elastic positioning of the workpiece inside the anti-delamination frame structure, a driven clamping component is installed on the inner wall of the elastic positioning component, a dynamic adaptive component is installed at both ends of the anti-delamination frame structure, the dynamic adaptive component is used for adaptive buffering of the internal workpiece, and an elastic support component is installed at both ends of the anti-delamination frame structure, the elastic support component is used for elastic support of the dynamic adaptive component.

[0007] Preferably, the anti-delamination frame structure includes a protective frame, the bottom inner wall of the protective frame is provided with an air guiding structure, and the inner wall of the protective frame is provided with a groove structure, the groove structure being used for the structural installation of the elastic positioning component and the elastic support component.

[0008] Preferably, the elastic positioning component includes a positioning structure, the inner wall of which is fitted with a wear-resistant pad, and elastic reset members are installed at both ends of the positioning structure, the elastic reset members being used for elastic reset of the positioning structure.

[0009] Preferably, the driven clamping assembly includes a slot structure and an elastic limiting member. The slot structure is formed on the inner wall of the side end of the elastic positioning assembly. A block structure is installed at the bottom of the elastic limiting member. The block structure cooperates with the slot structure to be used for driven clamping of the elastic positioning assembly. A sliding groove structure is formed on the side end of the slot structure. The sliding groove structure is used for the position sliding of the block structure.

[0010] Preferably, the dynamic adaptive component includes a sliding adjustment member, a sliding support plate slidingly attached to the side end of the sliding adjustment member, adjustment grooves provided at both ends of the sliding adjustment member, adjustment sliders installed at both ends of the sliding support plate, and a flexible buffer structure installed at the side end of the sliding support plate. The flexible buffer structure is used for flexible buffering of the workpiece inside the anti-delamination frame structure.

[0011] Preferably, the elastic support component includes a limiting frame and a limiting block. Guide members are installed at both ends of the limiting frame. A guide block structure slides on the inner wall of the guide member. A connecting structure is installed on the side end of the limiting block and the guide block structure. The connecting structure is used for the rotational connection between the limiting block and the guide block structure. An elastic member is installed on the side end of the guide block structure. The elastic member is used for the elastic buffer of the guide block structure.

[0012] Compared with related technologies, the stepped edge anti-delamination structure for thin PCBs provided by this utility model has the following beneficial effects:

[0013] This invention provides a stepped edge anti-delamination structure for thin PCBs. To reduce damage during use, the structure utilizes elastic positioning components at both ends in conjunction with a driven clamping component to pre-absorb external impact forces through its own deformation, transforming rigid collisions into elastic buffers. This prevents the PCB edges from splitting or breaking due to instantaneous stress concentration. Furthermore, the driven clamping component applies a reverse constraint force to the elastic positioning component after buffering, limiting excessive deformation and preventing secondary impacts from elastic rebound. Simultaneously, the dynamic adaptive component and elastic support component allow for real-time adjustment of the structure's positioning position. Combined with the flexible compensation of the elastic support component, this adapts to changes in workpiece gaps. Attached Figure Description

[0014] Figure 1 A schematic diagram of a preferred embodiment of the stepped edge anti-delamination structure for thin PCBs provided by this utility model;

[0015] Figure 2 for Figure 1 The diagram shows the structure of the dynamic adaptive component.

[0016] Figure 3 for Figure 1 The diagram shows the structure of the gas guiding structure.

[0017] Figure 4 for Figure 1 The diagram shows the structural schematic of the positioning structure.

[0018] Figure 5 for Figure 1 The diagram shows the structure of the flexible buffer structure.

[0019] The diagram is labeled as follows: 1. Anti-delamination frame structure; 11. Protective frame; 12. Air duct structure; 13. Groove structure; 2. Elastic positioning component; 21. Positioning structure; 22. Wear-resistant pad; 23. Elastic reset component; 3. Driven clamping component; 31. Slot structure; 32. Elastic limit component; 33. Block structure; 34. Slide structure; 4. Dynamic adaptive component; 41. Sliding adjustment component; 42. Sliding support plate; 43. Adjustment groove; 44. Adjustment slider; 45. Flexible buffer structure; 5. Elastic support component; 51. Limiting frame; 52. Limiting block; 53. Guide component; 54. Guide block structure; 55. Connecting structure; 56. Elastic component. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Please refer to the following: Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 ,in, Figure 1 A schematic diagram of a preferred embodiment of the stepped edge anti-delamination structure for thin PCBs provided by this utility model; Figure 2 for Figure 1 The diagram shows the structure of the dynamic adaptive component. Figure 3 for Figure 1 The diagram shows the structure of the gas guiding structure. Figure 4 for Figure 1 The diagram shows the structural schematic of the positioning structure. Figure 5 for Figure 1The diagram shows a schematic of the flexible buffer structure. The stepped edge anti-delamination structure for a thin PCB includes: an anti-delamination frame structure 1, with elastic positioning components 2 installed on the inner walls of both ends of the anti-delamination frame structure 1. The elastic positioning components 2 are used for elastic positioning of the workpiece inside the anti-delamination frame structure 1. A driven clamping component 3 is installed on the inner wall of the elastic positioning component 2. Dynamic adaptive components 4 are installed on both ends of the anti-delamination frame structure 1. The dynamic adaptive components 4 are used for adaptive buffering of the internal workpiece. Elastic support components 5 are installed on both ends of the anti-delamination frame structure 1. The elastic support components 5 are used for elastic support of the dynamic adaptive components 4.

[0022] The anti-delamination frame structure 1 includes a protective frame 11. The bottom inner wall of the protective frame 11 is provided with an air guiding structure 12. The inner wall of the protective frame 11 is provided with a groove structure 13. The groove structure 13 is used for the structural installation of the elastic positioning component 2 and the elastic support component 5.

[0023] When protecting the edges of workpieces, the protective frame 11 can be adapted to different workpiece sizes and provide stable installation conditions, reducing structural deviations caused by the structure during use.

[0024] The anti-delamination frame structure 1 includes, but is not limited to, a metal stamping frame and an elastic composite frame; in this embodiment, the anti-delamination frame structure 1 is preferably an elastic composite frame.

[0025] The elastic positioning component 2 includes a positioning structure 21, the inner wall of which is fitted with a wear-resistant pad 22, and elastic reset members 23 are installed at both ends of the positioning structure 21. The elastic reset members 23 are used for the elastic reset of the positioning structure 21.

[0026] After the workpiece is placed inside the anti-delamination frame structure 1, the positioning structures 21 at both ends will be pre-supported by the elastic reset members 23. Under its own deformation, the positioning structure 21 will be stably elastically supported to position the workpiece, reducing the damage to the internal workpiece caused by rigid impact.

[0027] Among them, the elastic positioning component 2 includes, but is not limited to, a spring-type positioning structure and a corrugated elastic pad; in this embodiment, the elastic positioning component 2 is preferably a spring-type positioning structure.

[0028] The driven clamping assembly 3 includes a slot structure 31 and an elastic limiting member 32. The slot structure 31 is formed on the inner wall of the side end of the elastic positioning assembly 2. A locking block structure 33 is installed at the bottom of the elastic limiting member 32. The locking block structure 33 cooperates with the slot structure 31 and can be used for driven clamping of the elastic positioning assembly 2. A sliding groove structure 34 is formed on the side end of the slot structure 31. The sliding groove structure 34 is used for the position sliding of the locking block structure 33.

[0029] When the elastic positioning components 2 at both ends provide elastic support, the locking block structure 33 on the inner wall will automatically slide into the slot structure 31 as the elastic positioning components 2 move. The slot structure 31 can accommodate the small range of sliding of the locking block structure 33, so as to allow the entire elastic positioning component 2 to slide adaptively, avoiding secondary impact when the elastic positioning component 2 is subjected to impact.

[0030] Among them, the driven clamping component 3 includes, but is not limited to, a wedge-type clamping structure and an elastic buckle clamping structure; in this embodiment, the driven clamping component 3 preferably has an elastic buckle clamping structure.

[0031] The dynamic adaptive component 4 includes a sliding adjustment member 41, a sliding support plate 42 that slides on the side of the sliding adjustment member 41, adjustment grooves 43 that are opened at both ends of the sliding adjustment member 41, adjustment sliders 44 that are installed at both ends of the sliding support plate 42, and a flexible buffer structure 45 that is installed on the side of the sliding support plate 42. The flexible buffer structure 45 is used for flexible buffering of the workpiece inside the anti-delamination frame structure 1.

[0032] After the PCB workpiece is placed, the flexible buffer structure 45 on the side will provide adaptive structural buffering for the workpiece to position the gap at the edge of the workpiece. When providing elastic buffering for the workpiece, the sliding support plate 42 can slide up and down along the inner wall to meet the elastic positioning of different types of workpieces.

[0033] The dynamic adaptive component 4 includes, but is not limited to, shape memory material structure and elastic material structure; in this embodiment, the dynamic adaptive component 4 preferably has a shape memory material structure.

[0034] The elastic support component 5 includes a limiting frame 51 and a limiting block 52. Guide members 53 are installed at both ends of the limiting frame 51. A guide block structure 54 slides on the inner wall of the guide member 53. A connecting structure 55 is installed on the side ends of the limiting block 52 and the guide block structure 54. The connecting structure 55 is used for the rotational connection between the limiting block 52 and the guide block structure 54. An elastic member 56 is installed on the side end of the guide block structure 54. The elastic member 56 is used for the elastic buffer of the guide block structure 54.

[0035] To ensure the elastic support of the dynamic adaptive component 4, the guide block structure 54 on the inner wall will slide along the inner wall of the guide member 53. When the structure slides, the connecting structure 55 with rotational function on the side will simultaneously buffer the position of the limiting block 52. Then, under the deformation of the elastic member 56, the dynamic adaptive component 4 on the side will be stably buffered.

[0036] Among them, the elastic support component 5 includes, but is not limited to, an airbag-type elastic support structure and a spring-type elastic support structure; in this embodiment, the elastic support component 5 is preferably a spring-type elastic support structure.

[0037] The working principle of the stepped edge anti-delamination structure for thin PCBs provided by this utility model is as follows:

[0038] When performing edge protection on the PCB, the workpiece is first placed in an overlapping manner inside the anti-delamination frame structure 1. After the workpiece is placed, the elastic positioning components 2 at both ends will pre-position the workpiece elastically to reduce the damage caused by rigid impact. During workpiece positioning, the driven clamping components 3 on the inner wall will limit the elastic buffer of the elastic positioning components 2 to reduce secondary damage caused by deformation. Subsequently, the dynamic adaptive components 4 at both ends will flexibly adjust the gap between the workpieces to adapt to different gap buffers. The elastic support components 5 on the inner wall can provide stable elastic support for the dynamic adaptive components 4 to avoid structural deviation.

[0039] Compared with related technologies, the stepped edge anti-delamination structure for thin PCBs provided by this utility model has the following beneficial effects:

[0040] When performing edge protection on a PCB, to reduce damage during use, the structure utilizes the elastic positioning components 2 and driven clamping components 3 at both ends. These components pre-absorb external impact forces through their own deformation, transforming rigid collisions into elastic buffers. This prevents the PCB edges from splitting or breaking due to instantaneous stress concentration. Furthermore, after buffering, the driven clamping components 3 apply a reverse constraint force to the elastic positioning components 2, limiting excessive deformation and preventing secondary impacts from elastic rebound. Simultaneously, the dynamic adaptive component 4 and elastic support component 5 allow for real-time adjustment of the structure's positioning position. Combined with the flexible compensation of the elastic support component 5, this adapts to changes in workpiece gaps.

[0041] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A stepped edge delamination resistant structure for thin PCBs, characterized by, include: An anti-delamination frame structure is provided, wherein elastic positioning components are installed on the inner walls of both ends of the anti-delamination frame structure for elastic positioning of the workpiece inside the anti-delamination frame structure, and driven clamping components are installed on the inner walls of the elastic positioning components. Dynamic adaptive components are installed at both ends of the anti-delamination frame structure for adaptive buffering of the internal workpiece, and elastic support components are installed at both ends of the anti-delamination frame structure for elastic support of the dynamic adaptive components.

2. The stepped edge delamination resistant structure for thin PCBs of claim 1, wherein, The anti-delamination frame structure includes a protective frame, an air-guiding structure on the bottom inner wall of the protective frame, and groove structures on the inner wall of the protective frame. The groove structures are used for the structural installation of the elastic positioning component and the elastic support component.

3. The stepped edge delamination resistant structure for thin PCBs of claim 1, wherein, The elastic positioning component includes a positioning structure, the inner wall of which is fitted with a wear-resistant pad, and elastic reset members are installed at both ends of the positioning structure. The elastic reset members are used for the elastic reset of the positioning structure.

4. The stepped edge anti-delamination structure of the thin PCB according to claim 1, characterized in that, The driven clamping assembly includes a slot structure and an elastic limiting member. The slot structure is formed on the inner wall of the side end of the elastic positioning assembly. A locking block structure is installed at the bottom of the elastic limiting member. The locking block structure cooperates with the slot structure to be used for driven clamping of the elastic positioning assembly. A sliding groove structure is formed on the side end of the slot structure. The sliding groove structure is used for the position sliding of the locking block structure.

5. The stepped edge anti-delamination structure of the thin PCB according to claim 1, characterized in that, The dynamic adaptive component includes a sliding adjustment member, a sliding support plate that slides on the side of the sliding adjustment member, adjustment grooves that are formed at both ends of the sliding adjustment member, adjustment sliders that are installed at both ends of the sliding support plate, and a flexible buffer structure that is installed on the side of the sliding support plate. The flexible buffer structure is used for flexible buffering of the workpiece inside the anti-delamination frame structure.

6. The stepped edge anti-delamination structure of the thin PCB according to claim 1, characterized in that, The elastic support assembly includes a limiting frame and a limiting block. Guide members are installed at both ends of the limiting frame. A guide block structure slides on the inner wall of the guide member. A connecting structure is installed on the side end of the limiting block and the guide block structure. The connecting structure is used for the rotational connection between the limiting block and the guide block structure. An elastic member is installed on the side end of the guide block structure. The elastic member is used for the elastic buffer of the guide block structure.