Novel electromagnetic shielding film
By designing the through-hole structure and rubber reinforcement rib and slot structure in the electromagnetic shielding film, the problems of poor use and insufficient stability of the existing electromagnetic shielding film are solved, and more efficient electromagnetic wave shielding and more stable connection are achieved.
Patent Information
- Application Number
- CN202421937320.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-12
- Publication Date
- 2025-06-20
- Estimated Expiration
- 2034-08-12
AI Technical Summary
The existing electromagnetic shielding films are not effective enough and have insufficient stability, which leads to the inability to effectively shield electromagnetic waves in practical applications and the connections are prone to loosening.
A new electromagnetic shielding film was designed, including a wear-resistant base layer, a heat insulation layer, a shielding layer and a wave absorbing layer, and through holes were opened in each layer to improve heat dissipation, while rubber reinforcement and slot structures were used to enhance connection stability.
The through-hole structure achieves rapid heat dissipation, which improves the use effect of the shielding film; the design of rubber reinforcement ribs and slots enhances the stability of the connection, solving the problem of insufficient stability of the electromagnetic shielding film.
Smart Images
Figure CN223007807U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a new type of electromagnetic shielding film, belonging to the technical field of shielding films. Background Technique
[0002] With the continuous development of the urban informatization industry, more and more electronic products use large-scale or ultra-large-scale integrated circuits. The electromagnetic waves received by the internal electronic components from each other or from the outside will seriously interfere with the operation of the electronic devices, reducing the operation efficiency. Moreover, due to the increasingly wide electromagnetic spectrum to be shielded, the requirements for electromagnetic shielding effectiveness are also getting higher and higher. Single materials can no longer meet the current requirements for electromagnetic shielding, which has promoted the development of electromagnetic shielding materials from single materials to composite materials.
[0003] The comparative patent document with the publication number of: "CN216752640U, a highly tear-resistant electromagnetic shielding film, includes an electromagnetic shielding film body, a protection frame and connecting clamping blocks. One connecting clamping block is connected to each end of the electromagnetic shielding film body. The connecting clamping block is in a concave shape. The height of one side wall of the concave opening of the connecting clamping block is half of the height of the other side wall. The concave openings of the connecting clamping blocks at both ends of the electromagnetic shielding film body face in opposite directions, and the connecting clamping blocks at both ends of adjacent electromagnetic shielding film bodies are hooked and clamped with each other. A protection frame is arranged outside the connection part of adjacent electromagnetic shielding film bodies. Both the electromagnetic shielding film body and the connecting clamping block include a shielding layer, a conductive glue layer is smeared at the bottom of the shielding layer, and an oil paper layer is pasted at the bottom of the conductive glue layer".
[0004] In the actual use of the above patent, the following problems still exist: Although this patent can perform daily electromagnetic wave shielding operations, in the actual use process, due to too many internal base films, the air permeability of the shielding film is poor. And the shielding film is to be used on equipment. Too many base films cause the heat dissipation of the equipment to be slow during operation, which further makes the use effect of the electromagnetic shielding film not good enough. And it relies on two oppositely arranged connecting clamping blocks for connection. Since the two connecting clamping blocks are shallowly connected, the connection part is easy to loosen, which further makes the use stability of the electromagnetic shielding film insufficient. Content of the Utility Model
[0005] (1) Technical Problems to be Solved
[0006] The utility model provides a new type of electromagnetic shielding film to solve the problems of poor use effect and insufficient use stability of the electromagnetic shielding film in the prior art.
[0007] (2) Technical Solutions
[0008] The present utility model is achieved through the following technical solutions: A novel electromagnetic shielding film, comprising a wear-resistant base layer, an insulating layer is adhered to the bottom of the wear-resistant base layer, a shielding layer is adhered to the bottom of the insulating layer, and an absorbing layer is adhered to the bottom of the shielding layer;
[0009] A plurality of first through-holes are formed in the middle of the wear-resistant base layer, a plurality of second through-holes are formed in the middle of the insulating layer, a plurality of third through-holes are formed in the middle of the shielding layer, and two rubber reinforcing ribs are fixed on both sides of the wear-resistant base layer, the insulating layer, the shielding layer, and the absorbing layer, and slots are formed in the middle of both of the two rubber reinforcing ribs.
[0010] Preferably, the wear-resistant base layer contains a metal material, the insulating layer contains a fluorocarbon resin material, the shielding layer contains a composite resin material with conductive particles, and the absorbing layer contains a micron-sized carbonyl iron material.
[0011] Preferably, a plurality of the first through-holes penetrate through the middle of the wear-resistant base layer, a plurality of the second through-holes penetrate through the middle of the insulating layer, and a plurality of the third through-holes penetrate through the middle of the shielding layer.
[0012] Preferably, a plurality of the first through-holes are correspondingly formed with a plurality of the second through-holes, and a plurality of the second through-holes are correspondingly formed with a plurality of the third through-holes.
[0013] Preferably, the opening diameters of the first through-hole, the second through-hole, and the third through-hole gradually decrease, and the cross-sectional combination of the first through-hole, the second through-hole, and the third through-hole is formed in a V shape.
[0014] Preferably, the two rubber reinforcing ribs are arranged oppositely, each slot is formed in the middle of each rubber reinforcing rib, and the width of the side of the two rubber reinforcing ribs away from each other is wider than the width of the two slots.
[0015] The present utility model provides a novel electromagnetic shielding film, and the beneficial effects thereof are as follows:
[0016] (1) For this novel electromagnetic shielding film, the first through-holes formed are used to divert the blown wind, so that the first through-holes, the second through-holes, and the third through-holes cooperate with each other to achieve the effect of rapid heat dissipation, effectively accelerating the local air circulation speed, and thus achieving the effect of improving the use effect of the shielding film.
[0017] (2) For this novel electromagnetic shielding film, by docking two shielding films, the rubber reinforcing ribs and the slots cooperate with each other to achieve the effect of firm connection, effectively enhancing the connection stability, and thus achieving the effect of improving the use stability of the shielding film. Description of the Drawings
[0018] Figure 1 is a three-dimensional view of the present utility model;
[0019] Figure 2 is the overall structural schematic diagram of the present utility model;
[0020] Figure 3 is the sectional view of the shielding film composition of the present utility model;
[0021] Figure 4 is the structural schematic diagram of the rubber reinforcing rib of the present utility model.
[0022]
Description of Main Component Symbols
[0023] 1. Wear-resistant base layer; 2. Heat-insulating layer; 3. Shielding layer; 4. Wave-absorbing layer; 5. First through-hole; 6. Second through-hole; 7. Third through-hole; 8. Rubber reinforcing rib; 9. Slot. Specific Embodiment
[0024] The embodiment of the present utility model provides a new type of electromagnetic shielding film.
[0025] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 , which includes a wear-resistant base layer 1, a heat-insulating layer 2 is pasted at the bottom of the wear-resistant base layer 1, a shielding layer 3 is pasted at the bottom of the heat-insulating layer 2, and a wave-absorbing layer 4 is pasted at the bottom of the shielding layer 3; several first through-holes 5 are provided in the middle of the wear-resistant base layer 1, several second through-holes 6 are provided in the middle of the heat-insulating layer 2, several third through-holes 7 are provided in the middle of the shielding layer 3, two rubber reinforcing ribs 8 are fixed on both sides of the wear-resistant base layer 1, the heat-insulating layer 2, the shielding layer 3 and the wave-absorbing layer 4, and slots 9 are provided in the middle of the two rubber reinforcing ribs 8.
[0026] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 again. It is specifically noted that the wear-resistant base layer 1 contains a metal material, the heat-insulating layer 2 contains a fluorocarbon resin material, the shielding layer 3 contains a composite resin material with conductive particles, the wave-absorbing layer 4 contains a micron-sized carbonyl iron material, several first through-holes 5 penetrate through the middle of the wear-resistant base layer 1, several second through-holes 6 penetrate through the middle of the heat-insulating layer 2, several third through-holes 7 penetrate through the middle of the shielding layer 3, several first through-holes 5 and several second through-holes 6 are correspondingly provided, several second through-holes 6 and several third through-holes 7 are correspondingly provided, the opening diameters of the first through-hole 5, the second through-hole 6 and the third through-hole 7 gradually decrease, the cross-sectional combination of the first through-hole 5, the second through-hole 6 and the third through-hole 7 is opened in a V shape, and the narrow tube effect is used to accelerate the local air flow speed.
[0027] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4, Specifically, the two rubber reinforcing ribs 8 are arranged oppositely, each slot 9 is opened in the middle of each rubber reinforcing rib 8, and the width of the side of the two rubber reinforcing ribs 8 away from each other is wider than the width of the two slots 9, which plays a role in improving the connection firmness.
[0028] When the utility model is in use: First, relying on the wear-resistant base layer 1, heat-insulating layer 2, shielding layer 3, and wave-absorbing layer 4 successively pasted on the shielding film body, the metal material contained in the wear-resistant base layer 1 can effectively enhance its own strength and improve the overall wear resistance of the shielding film. The fluorine resin material contained in the heat-insulating layer 2 has excellent high and low temperature resistance, dielectric properties, chemical stability, weather resistance, non-combustibility, non-stickiness, and low friction coefficient and other characteristics. The composite resin material containing conductive particles in the shielding layer 3 weakens the electromagnetic wave for the first time, and then cooperates with the micron carbonyl iron material contained in the wave-absorbing layer 4 to weaken the electromagnetic wave again, so as to improve the overall performance of the shielding film. And through the first through hole 5 opened to guide the blown wind, the wind is led into the second through hole 6 and then into the third through hole 7 by the second through hole 6. The Venturi effect is used to increase the local air flow velocity, complete the effect of rapid heat dissipation, effectively accelerate the local air flow velocity, and then achieve the effect of improving the use effect of the shielding film. Subsequently, by docking two shielding films, the side of the rubber reinforcing rib 8 fixed on one side of a shielding film is inserted into the slot 9 opened in the middle of the other shielding film, and the slot 9 is squeezed by the wider side to complete the effect of firm connection, effectively strengthening the connection stability, and then achieving the effect of improving the use stability of the shielding film.
[0029] Working principle: The first through hole 5 opened is used to guide the blown wind, so that the first through hole 5, the second through hole 6, and the third through hole 7 cooperate with each other. Using the Venturi effect, the effect of rapid heat dissipation is achieved, effectively accelerating the local air flow velocity, and then achieving the effect of improving the use effect of the shielding film. Subsequently, by docking two shielding films, the adjacent two rubber reinforcing ribs 8 are connected to achieve the effect of firm connection, effectively strengthening the connection stability, and then achieving the effect of improving the use stability of the shielding film.
[0030] The above shows and describes the basic principles, main features, and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.
Claims
1. A novel electromagnetic shielding film, comprising a wear-resistant base layer (1), characterized in that: A heat insulation layer (2) is pasted on the bottom of the wear-resistant base layer (1), a shielding layer (3) is pasted on the bottom of the heat insulation layer (2), and a wave absorbing layer (4) is pasted on the bottom of the shielding layer (3); The wear-resistant base layer (1) is provided with a plurality of first through holes (5) in the middle, the heat-insulating layer (2) is provided with a plurality of second through holes (6) in the middle, and the shielding layer (3) is provided with a plurality of third through holes (7) in the middle. Two rubber reinforcing ribs (8) are fixed on both sides of the wear-resistant base layer (1), the heat-insulating layer (2), the shielding layer (3), and the wave-absorbing layer (4), and slots (9) are provided in the middle of the two rubber reinforcing ribs (8).
2. A novel electromagnetic shielding film according to claim 1, characterized in that: The wear-resistant base layer (1) contains metal material, the heat-insulating layer (2) contains fluorocarbon resin material, the shielding layer (3) contains composite resin material with conductive particles, and the wave-absorbing layer (4) contains micron carbonyl iron material.
3. The novel electromagnetic shielding film according to claim 1 is characterized in that: A plurality of the first through holes (5) penetrate through the middle of the wear-resistant base layer (1), a plurality of the second through holes (6) penetrate through the middle of the heat insulation layer (2), and a plurality of the third through holes (7) penetrate through the middle of the shielding layer (3).
4. The novel electromagnetic shielding film according to claim 1, characterized in that: A plurality of the first through holes (5) are opened correspondingly to a plurality of the second through holes (6), and a plurality of the second through holes (6) are opened correspondingly to a plurality of the third through holes (7).
5. The novel electromagnetic shielding film according to claim 1, characterized in that: The opening diameters of the first through hole (5), the second through hole (6) and the third through hole (7) gradually decrease, and the cross-sections of the first through hole (5), the second through hole (6) and the third through hole (7) are combined to be V-shaped.
6. The novel electromagnetic shielding film according to claim 1, characterized in that: The two rubber reinforcing ribs (8) are arranged opposite to each other, each slot (9) is opened in the middle of each rubber reinforcing rib (8), and the width of the two rubber reinforcing ribs (8) apart is greater than the width of the two slots (9).