Weather resistant reinforced multilayer composite shield

CN224805322UActive Publication Date: 2026-09-25YANGZHOU YUYU ELECTRICAL APPLIANCES
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Patent Information

Application Number
CN202522029100.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-22
Publication Date
2026-09-25
Estimated Expiration
2035-09-22

AI Technical Summary

Technical Problem

[0003]现有的屏蔽罩长期暴露在户外时,金属易受雨水、盐分腐蚀生锈,紫外线照射会导致表面涂层老化开裂,屏蔽层完整性被破坏,屏蔽效能随使用时间衰减的问题

Benefits of technology

[0016](1)、本实用新型通过在屏蔽罩本体的侧壁设置有表面耐磨层,表面耐磨层采用玻璃纤维增强聚丙烯,通过热压复合于耐候层外侧,可抵抗风沙冲刷和轻微碰撞,避免耐候层直接受损,材料密度低,不增加屏蔽罩整体重量,耐候防护层采用聚酰亚胺薄膜,抗老化性能优异,适合极端温度环境,在保证耐候性的同时避免整体结构过厚,过渡粘结层采用改性环氧树脂胶粘剂,固化后具备优异的耐高低温性能,可有效粘结金属屏蔽层与非金属耐候层,避免长期环境循环下的层间脱落,电磁屏蔽层选用高导电无氧铜箔作为基材,镍层可初步提升抗腐蚀能力,防止铜铝氧化,兼顾屏蔽效果与结构轻量化,提高屏蔽罩本体的使用性能。

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Abstract

The utility model relates to the technical field of composite shielding cover, and disclose a weather resistance reinforced multilayer composite shielding cover, including shielding cover body, and set up protection subassembly at shielding cover body side position, protection subassembly includes the composite subassembly of setting up at shielding cover body side position, the side position of shielding cover body is provided with auxiliary mechanism, the auxiliary mechanism includes connecting piece, connecting piece fixed mounting is in the inner wall of shielding cover body, the other end fixed mounting of connecting piece has reinforcing part, the lateral wall fixed mounting of reinforcing part has honeycomb board, the lateral wall of honeycomb board is fixedly connected with the lateral wall of connecting piece. The utility model solves the problem that the existing shielding cover is exposed to the outdoors for a long time, metal is easy to be corroded by rainwater and salt, rust, ultraviolet radiation can cause the surface coating to age and crack, the shielding layer integrity is destroyed, and the shielding effectiveness attenuates with the use time.
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Description

Technical Field

[0001] This utility model relates to the field of composite shielding technology, specifically a weather-resistant enhanced multilayer composite shielding. Background Technology

[0002] Composite shielding covers are electromagnetic shielding components made of multiple layers of materials with different functions. Their core function is to block electromagnetic interference, while also incorporating additional properties such as weather resistance, wear resistance, and vibration reduction. They are suitable for use in electronic devices to prevent the leakage of internal electromagnetic signals and avoid external noise interference with the normal operation of the equipment. Their core feature is a "multi-layer composite structure," where each layer is designed collaboratively according to functional requirements: typically, highly conductive materials (such as copper foil, aluminum foil, and metal plating) are used as the core electromagnetic shielding layer to ensure shielding effectiveness; adhesive layers are used to achieve a tight bond between the layers and prevent interlayer peeling; protective layers (such as weather-resistant coatings, wear-resistant layers, and anti-corrosion layers) can also be added to improve environmental adaptability, or buffer layers can be used to achieve vibration reduction and collision protection functions. Therefore, a weather-resistant enhanced multi-layer composite shielding cover is required.

[0003] Existing shielding covers are susceptible to corrosion and rust from rain and salt when exposed to the outdoors for extended periods. Ultraviolet radiation can cause the surface coating to age and crack, damaging the integrity of the shielding layer and leading to a decrease in shielding effectiveness over time. Utility Model Content

[0004] The purpose of this invention is to provide a weather-resistant enhanced multilayer composite shielding cover, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a weather-resistant enhanced multilayer composite shielding cover, comprising a shielding cover body;

[0006] And protective components located on the side of the shield body;

[0007] The protection component includes a composite component disposed on the side of the shield body;

[0008] An auxiliary mechanism is provided on the side of the shielding cover body.

[0009] Preferably, a mounting component is fixedly installed on the side wall of the shield body, and the mounting component has mounting holes.

[0010] Preferably, the auxiliary mechanism includes a connector, which is fixedly installed on the inner wall of the shield body, and a reinforcement component is fixedly installed at the other end of the connector.

[0011] Preferably, a honeycomb plate is fixedly installed on the side wall of the reinforcement member, and the side wall of the honeycomb plate is fixedly connected to the side wall of the connector.

[0012] Preferably, the composite component includes a surface wear-resistant layer and an electromagnetic shielding layer. The surface wear-resistant layer is fixedly installed on the outer wall of the shielding cover body, and the electromagnetic shielding layer is fixedly installed on the inner wall of the shielding cover body. A transition bonding layer is fixedly installed on the side wall of the electromagnetic shielding layer, and a weather-resistant protective layer is fixedly installed on the other side of the transition bonding layer. The other side of the weather-resistant protective layer is fixedly connected to the inner wall of the shielding cover body.

[0013] Preferably, the electromagnetic shielding layer uses highly conductive oxygen-free copper foil as the substrate, and the transition bonding layer uses a modified epoxy resin adhesive.

[0014] Preferably, there are four mounting components, all of which are equal in shape and size, and two mounting components are arranged symmetrically with respect to the center plane of the shield body in the left-right direction.

[0015] This invention provides a weather-resistant enhanced multilayer composite shielding cover. It has the following beneficial effects:

[0016] (1) This utility model provides a surface wear-resistant layer on the side wall of the shield body. The surface wear-resistant layer is made of glass fiber reinforced polypropylene and is hot-pressed onto the outside of the weather-resistant layer. It can resist wind and sand erosion and slight collisions, and avoid direct damage to the weather-resistant layer. The material has low density and does not increase the overall weight of the shield. The weather-resistant protective layer is made of polyimide film, which has excellent anti-aging performance and is suitable for extreme temperature environments. While ensuring weather resistance, it avoids the overall structure from being too thick. The transition bonding layer is made of modified epoxy resin adhesive, which has excellent high and low temperature resistance after curing. It can effectively bond the metal shield layer and the non-metal weather-resistant layer, and avoid interlayer delamination under long-term environmental cycling. The electromagnetic shielding layer uses highly conductive oxygen-free copper foil as the substrate. The nickel layer can initially improve the corrosion resistance and prevent copper and aluminum oxidation. It takes into account both the shielding effect and the lightweight structure, and improves the performance of the shield body.

[0017] (2) This utility model can effectively improve the overall strength of the shield body by setting connectors and reinforcements on the inner wall of the shield body. A honeycomb plate is set in the middle of the connectors and reinforcements. The lightweight design makes it easier for operators to use the shield body. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the appearance and structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the auxiliary mechanism of this utility model;

[0020] Figure 3 This is a cross-sectional front plan view of the composite component of this utility model.

[0021] In the figure: 1. Shielding cover body; 2. Mounting component; 4. Protective component; 41. Composite component; 411. Surface wear-resistant layer; 412. Electromagnetic shielding layer; 413. Transition bonding layer; 414. Weather-resistant protective layer; 42. Auxiliary mechanism; 421. Connector; 422. Honeycomb panel; 423. Reinforcing component. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0024] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described with reference to the accompanying drawings.

[0026] Example 1: A preferred embodiment of the weather-resistant enhanced multilayer composite shielding provided by this utility model is as follows: Figures 1 to 3 As shown: A weather-resistant enhanced multi-layer composite shielding cover includes a shielding cover body 1. Mounting parts 2 are fixedly installed on the side wall of the shielding cover body 1. Mounting parts 2 are provided with mounting holes. There are four mounting parts 2. The four mounting parts 2 are all the same in shape and size. Two mounting parts 2 are arranged in a group and symmetrically arranged with respect to the middle surface of the shielding cover body 1 in the left and right directions.

[0027] And the protective component 4 is located on the side of the shield body 1;

[0028] The protective component 4 includes a composite component 41 disposed on the side of the shield body 1;

[0029] An auxiliary mechanism 42 is provided on the side of the shield body 1.

[0030] The composite component 41 includes a surface wear-resistant layer 411 and an electromagnetic shielding layer 412. The surface wear-resistant layer 411 is fixedly installed on the outer side wall of the shielding cover body 1, and the electromagnetic shielding layer 412 is fixedly installed on the inner wall of the shielding cover body 1. A transition bonding layer 413 is fixedly installed on the side wall of the electromagnetic shielding layer 412, and a weather-resistant protective layer 414 is fixedly installed on the other side of the transition bonding layer 413. The other side of the weather-resistant protective layer 414 is fixedly connected to the inner wall of the shielding cover body 1.

[0031] In this embodiment, the electromagnetic shielding layer 412 is made of highly conductive oxygen-free copper foil as the substrate, and the transition bonding layer 413 is made of modified epoxy resin adhesive.

[0032] In the specific implementation process, a surface wear-resistant layer 411 is provided on the side wall of the shield body 1. The surface wear-resistant layer 411 is made of glass fiber reinforced polypropylene and is hot-pressed onto the outside of the weather-resistant layer. It can resist wind and sand erosion and minor impacts, avoiding direct damage to the weather-resistant layer. The material has low density and does not increase the overall weight of the shield. The weather-resistant protective layer 414 is made of polyimide film, which has excellent anti-aging properties and is suitable for extreme temperature environments. While ensuring weather resistance, it avoids the overall structure from being too thick. The transition bonding layer 413 is made of modified epoxy resin adhesive, which has excellent high and low temperature resistance after curing. It can effectively bond the metal shielding layer and the non-metal weather-resistant layer, avoiding interlayer delamination under long-term environmental cycling. The electromagnetic shielding layer 412 uses highly conductive oxygen-free copper foil as the substrate. The nickel layer can initially improve the corrosion resistance and prevent copper and aluminum oxidation, taking into account both the shielding effect and the lightweight structure, and improving the performance of the shield body 1.

[0033] Example 2: Based on Example 1, a preferred embodiment of the weather-resistant enhanced multilayer composite shielding provided by this utility model is as follows: Figures 1 to 3 As shown: The auxiliary mechanism 42 includes a connector 421, which is fixedly installed on the inner wall of the shield body 1, and a reinforcement member 423 is fixedly installed on the other end of the connector 421.

[0034] In this embodiment, a honeycomb plate 422 is fixedly installed on the side wall of the reinforcement member 423, and the side wall of the honeycomb plate 422 is fixedly connected to the side wall of the connector 421.

[0035] In the specific implementation process, the connection 421 and the reinforcement 423 are set on the inner wall of the shield body 1, which can effectively improve the overall strength of the shield body 1. A honeycomb plate 422 is set in the middle of the connection 421 and the reinforcement 423. The lightweight design makes it easier for operators to use the shield body 1.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

[0037] 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.

Claims

1. A weather-resistant enhanced multilayer composite shield, comprising a shield body (1); and a protective component (4) disposed on the side of the shield body (1); characterized in that: The protective component (4) includes a composite component (41) disposed on the side of the shield body (1). An auxiliary mechanism (42) is provided on the side of the shield body (1).

2. The weather-resistant enhanced multilayer composite shielding cover according to claim 1, characterized in that: The shield body (1) has a mounting component (2) fixedly installed on its side wall, and the mounting component (2) has a mounting hole.

3. The weather-resistant enhanced multilayer composite shielding cover according to claim 1, characterized in that: The auxiliary mechanism (42) includes a connector (421), which is fixedly installed on the inner wall of the shield body (1), and a reinforcement member (423) is fixedly installed at the other end of the connector (421).

4. The weather-resistant enhanced multilayer composite shielding cover according to claim 3, characterized in that: The side wall of the reinforcement member (423) is fixedly installed with a honeycomb plate (422), and the side wall of the honeycomb plate (422) is fixedly connected to the side wall of the connector (421).

5. The weather-resistant enhanced multilayer composite shielding cover according to claim 1, characterized in that: The composite component (41) includes a surface wear-resistant layer (411) and an electromagnetic shielding layer (412). The surface wear-resistant layer (411) is fixedly installed on the outer side wall of the shielding cover body (1), and the electromagnetic shielding layer (412) is fixedly installed on the inner wall of the shielding cover body (1). A transition bonding layer (413) is fixedly installed on the side wall of the electromagnetic shielding layer (412), and a weather-resistant protective layer (414) is fixedly installed on the other side of the transition bonding layer (413). The other side of the weather-resistant protective layer (414) is fixedly connected to the inner wall of the shielding cover body (1).

6. The weather-resistant enhanced multilayer composite shielding cover according to claim 5, characterized in that: The electromagnetic shielding layer (412) is made of highly conductive oxygen-free copper foil as the substrate, and the transition bonding layer (413) is made of modified epoxy resin adhesive.

7. The weather-resistant enhanced multilayer composite shielding cover according to claim 2, characterized in that: There are four mounting components (2), all of which are equal in shape and size. Two mounting components (2) are arranged symmetrically in the middle of the shield body (1) in the left and right directions.