Anti-static 3c communication steel sheet
By setting micro-protrusions and multi-layer antistatic coatings on the surface of the steel sheet substrate, and combining them with the heat dissipation and static elimination structure of the equipment shell, the problem of static electricity accumulation in 3C communication steel sheets during use is solved, improving the antistatic performance and heat dissipation capacity of the equipment and extending its service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN CHANGSHAN PRECISION TECH CO LTD
- Filing Date
- 2025-05-30
- Publication Date
- 2026-06-05
AI Technical Summary
Existing 3C communication steel sheets are prone to accumulating static electricity during use, leading to poor signal transmission and damage to electronic components. Furthermore, traditional antistatic coatings have weak adhesion to the steel sheet substrate, are easy to peel off, and cannot maintain excellent antistatic performance for a long time.
Multiple micro-protrusions are set on the surface of the steel sheet substrate, and a conductive transition layer, an antistatic coating, and a wear-resistant protective layer are applied. Combined with heat dissipation holes, air inlets, static eliminators, and filters on the outer shell of the communication equipment, a comprehensive antistatic, heat dissipation, and dustproof structure is formed.
This achieves long-term stable anti-static performance on the steel sheet surface, improves signal transmission quality and equipment heat dissipation capacity, extends equipment lifespan, and reduces the risk of electrostatic damage to electronic components.
Smart Images

Figure CN224329617U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of 3C communication equipment components, specifically to an anti-static 3C communication steel sheet. Background Technology
[0002] With the rapid development of the 3C (computer, communication and consumer electronics) industry, various smart terminal devices are constantly being updated, and the performance requirements for their internal components are also increasing. As a key component in 3C devices used for signal transmission, structural support and other critical functions, the performance of communication steel sheets directly affects the overall stability and reliability of the devices.
[0003] In the use of 3C devices, static electricity has always been a significant factor affecting equipment performance and lifespan. When static electricity accumulates on the surface of the communication steel sheet, it easily attracts dust particles, leading to poor contact and affecting signal transmission quality. Severe electrostatic discharge can even damage electronic components, causing equipment malfunction. Furthermore, during the production and assembly of 3C devices, operator activity and material friction can generate static electricity. If the communication steel sheet does not have good anti-static properties, it is highly susceptible to damage to electronic components due to electrostatic discharge, increasing the defect rate in the production process.
[0004] Currently, most 3C communication steel sheets on the market are made of ordinary steel, which has a high surface resistance and is prone to static electricity accumulation. Although some steel sheets improve their anti-static performance by spraying an anti-static coating, the adhesion between the traditional coating and the steel substrate is weak. After long-term use, vibration during equipment operation, or external forces such as friction and bending, the coating is prone to peeling off, resulting in a significant decrease in anti-static performance. Therefore, there is an urgent need to develop a 3C communication steel sheet with excellent anti-static performance while ensuring mechanical strength and heat dissipation capacity to meet the requirements of industry development. Utility Model Content
[0005] The purpose of this invention is to provide an anti-static 3C communication steel sheet to solve the defects mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] An antistatic 3C communication steel sheet includes a steel sheet substrate. The surface of the steel sheet substrate is provided with a plurality of micro protrusions for increasing the surface area. An antistatic layer is provided on the outer surface of the steel sheet substrate. The antistatic layer includes a conductive transition layer provided on the outer surface of the steel sheet substrate. An antistatic coating is provided on the outer surface of the conductive transition layer. A wear-resistant protective layer is provided on the outer surface of the antistatic coating.
[0008] Preferably, the thickness of the conductive transition layer is between 0.5 and 2 μm, and the surface roughness of the conductive transition layer is between 0.2 and 0.5 μm.
[0009] Preferably, the thickness of the antistatic coating is between 5 and 15 μm, and the surface resistivity of the antistatic coating is 10 Ω·cm. 6 ~10 9 Between Ω.
[0010] Preferably, it also includes a communication equipment housing for mounting the steel sheet substrate, wherein a plurality of heat dissipation holes are provided on one side plate of the communication equipment housing;
[0011] This feature allows for heat dissipation through ventilation holes.
[0012] Preferably, an air inlet duct is fixedly installed on the other side plate of the communication device housing, an electrostatic eliminator is provided on the air inlet duct, and a fan is fixedly installed inside the air inlet duct;
[0013] This setup allows for further static elimination using an electrostatic eliminator, and the fan facilitates both static elimination and heat dissipation.
[0014] Preferably, the front side of the air inlet duct is provided with a plug hole, and the discharge end of the static eliminator is plugged into the plug hole;
[0015] Preferably, a fixed support is fixedly installed on the housing of the static eliminator, and the fixed support is detachably connected to the air inlet duct;
[0016] The above two settings facilitate assembly operations.
[0017] Preferably, a threaded cap is threadedly connected to the air inlet end of the air inlet duct, and a filter screen for air filtration is fixedly installed on the inner wall of the threaded cap. An inner limiting rod for supporting the filter screen is fixedly installed between the front side of the filter screen and the inner wall of the threaded cap.
[0018] This feature allows for dust filtration using a filter screen, and the inner limit rod provides support for the filter screen.
[0019] Compared with the prior art, the beneficial effects of this utility model are:
[0020] 1. This utility model optimizes and protects the antistatic performance of the steel sheet substrate by setting an antistatic layer composed of a conductive transition layer, an antistatic coating, and a wear-resistant protective layer. The conductive transition layer enhances the bonding force with the steel sheet substrate, ensuring that the antistatic coating is not easy to fall off; the antistatic coating can effectively dissipate static electricity and prevent static electricity accumulation; the wear-resistant protective layer protects the coating from wear. The three work together to achieve a long-term stable antistatic effect, avoiding signal transmission problems and damage to electronic components caused by static electricity.
[0021] 2. This utility model increases the surface area of the steel sheet by setting multiple micro protrusions on the surface of the steel sheet substrate, thereby improving the heat dissipation performance of the steel sheet. The larger surface area helps to dissipate heat, thus ensuring the efficient operation of 3C communication equipment and improving the overall performance of the equipment.
[0022] 3. This utility model achieves multiple functions of internal heat dissipation, static electricity elimination, and dust prevention by incorporating heat dissipation holes, an air inlet, a static eliminator, a fan, and a filter on the outer casing of the communication equipment. The heat dissipation holes and fan promote air circulation and accelerate heat dissipation; the static eliminator further eliminates static electricity; the filter blocks dust, and the internal limiting rod provides support and reinforcement, thus creating a good working environment for the communication steel sheet and internal components, and extending the service life of the equipment. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the steel sheet substrate of this utility model;
[0024] Figure 2 This is a cross-sectional view of the steel sheet substrate of this utility model;
[0025] Figure 3 This is a schematic diagram of the steel sheet substrate of this utility model being assembled into the housing of a communication device;
[0026] Figure 4 This is one of the partial structural schematic diagrams of this utility model;
[0027] Figure 5 This is the second partial structural schematic diagram of the present utility model;
[0028] The meanings of the labels in the diagram are as follows:
[0029] 1. Steel sheet substrate; 10. Micro protrusions;
[0030] 2. Antistatic layer; 20. Conductive transition layer; 21. Antistatic coating; 22. Wear-resistant protective layer;
[0031] 3. Communication equipment casing; 30. Heat dissipation holes;
[0032] 4. Air inlet duct; 40. Plug-in hole; 41. Static eliminator; 411. Discharge terminal; 42. Fixed support; 43. Fan; 44. Threaded cover; 45. Inner limit rod; 46. Filter screen. Detailed Implementation
[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0034] Please see Figures 1-5 This utility model provides a technical solution: an antistatic 3C communication steel sheet, comprising a steel sheet substrate 1, with multiple micro protrusions 10 on the surface of the steel sheet substrate 1 to increase the surface area, thereby significantly increasing the surface area of the steel sheet substrate 1, thereby improving the heat dissipation performance of the steel sheet and accelerating the heat dissipation rate; an antistatic layer 2 is provided on the outer surface of the steel sheet substrate 1, the antistatic layer 2 includes a conductive transition layer 20 provided on the outer surface of the steel sheet substrate 1, an antistatic coating 21 provided on the outer surface of the conductive transition layer 20, and a wear-resistant protective layer 22 provided on the outer surface of the antistatic coating 21. The conductive transition layer 20 can be prepared by chemical nickel-phosphorus alloy plating process, the thickness of the conductive transition layer 20 is between 0.5 and 2 μm, and the surface roughness of the conductive transition layer 20 is between 0.2 and 0.5 μm. This setting can improve the bonding force between the steel sheet substrate and the antistatic coating, while ensuring the conductivity of the steel sheet.
[0035] In this embodiment, the thickness of the antistatic coating 21 is between 5 and 15 μm, and the surface resistance of the antistatic coating 21 is 10 Ω·cm. 6 ~10 9 The antistatic coating 21, with a surface resistivity between Ω, can be made from the following raw materials in parts by weight: 40-60 parts of waterborne polyurethane resin, 10-20 parts of graphene, 5-10 parts of carbon nanotubes, 3-8 parts of antistatic agent, 2-5 parts of dispersant, 1-3 parts of defoamer, and 20-40 parts of deionized water; the thickness of the antistatic coating is 5-15 μm, and the surface resistivity is 10 Ω. 6 -10 9 Ω. This feature gives the steel sheet excellent antistatic properties, effectively dissipating surface static electricity.
[0036] Specifically, the wear-resistant protective layer 22 can be made of an organosilicon resin coating modified with nano-silica. This feature can improve the wear resistance of the steel sheet surface and protect the antistatic coating 21 from damage.
[0037] like Figure 3As shown, it also includes a communication equipment housing 3 for mounting the steel sheet substrate 1. Multiple heat dissipation holes 30 are provided on one side plate of the communication equipment housing 3, so that the heat generated inside the equipment can be dissipated to the external environment in a timely manner through the heat dissipation holes 30, forming a natural heat dissipation channel, effectively reducing the internal temperature of the equipment, avoiding the impact of high temperature on the performance of the communication steel sheet and other electronic components, and ensuring the stable operation of the equipment.
[0038] like Figures 3-5 As shown, an air inlet duct 4 is fixedly installed on the other side plate of the communication equipment housing 3. An electrostatic eliminator 41 is installed on the air inlet duct 4, and a fan 43 is fixedly installed inside the air inlet duct 4. This allows the electrostatic eliminator 41 to eliminate static electricity in the air entering the equipment, reducing the impact of external static electricity on the equipment. The fan 43 accelerates airflow, which on the one hand promotes the rapid execution of the electrostatic elimination operation, and on the other hand accelerates the dissipation of heat inside the equipment, further improving the heat dissipation and anti-static capabilities of the equipment.
[0039] It is worth noting that the front cylinder of the air inlet duct 4 is provided with a plug-in hole 40. The discharge end 411 of the static eliminator 41 is plugged into the plug-in hole 40. A fixed support 42 is fixedly installed on the shell of the static eliminator 41. The fixed support 42 is detachably connected to the air inlet duct 4, which makes the installation and removal of the static eliminator 41 more convenient. During equipment maintenance or component replacement, it is easy to quickly operate the static eliminator 41, reduce the difficulty of equipment maintenance, and improve maintenance efficiency.
[0040] It is worth noting that a threaded cap 44 is threadedly connected to the air inlet end of the air inlet duct 4. A filter screen 46 for air filtration is fixedly installed on the inner wall of the threaded cap 44. An inner limiting rod 45 for supporting the filter screen 46 is fixedly installed between the front side of the filter screen 46 and the inner wall of the threaded cap 44. This allows the filter screen 46 to effectively filter dust particles in the air entering the air inlet duct 4, preventing dust from entering the equipment and affecting the performance of the communication steel sheet and other components. The inner limiting rod 45 supports and reinforces the filter screen 46, ensuring that the filter screen 46 remains stable during long-term use, without deformation or falling off, thus guaranteeing the filtration effect.
[0041] Finally, it should be noted that the steel substrate 1, static eliminator 41, and fan 43 involved in this utility model are all general standard parts or parts known to those skilled in the art. Their structure and principle can be known to those skilled in the art through technical manuals or conventional experimental methods. In the idle space of this device, all the above-mentioned electrical components, which refer to power elements, electrical components, and the matching controller and power supply, are connected by wires. The specific connection method should refer to the working principle of this utility model. The electrical connection between each electrical component is completed in the order of operation. The detailed connection method is a technology known in the art.
[0042] When using the antistatic 3C communication steel sheet of this utility model, first install the steel sheet base 1 into the predetermined position inside the communication equipment housing 3. Before installation, according to actual needs, the discharge end 411 of the static eliminator 41 can be inserted into the insertion hole 40 of the air inlet duct 4 through the fixing support 42 to complete the installation, and tighten the threaded cover 44 so that the filter screen 46 and the inner limit rod 45 combine to seal the air inlet end of the air inlet duct 4.
[0043] When the equipment is running, the micro protrusions 10 on the surface of the steel sheet substrate 1 increase the heat dissipation area. Together with the heat dissipation holes 30 on the communication equipment housing 3 and the fan 43 in the air inlet duct 4, the airflow is accelerated and the heat inside the equipment is quickly dissipated. At the same time, the static eliminator 41 on the air inlet duct 4 eliminates static electricity in the air entering the equipment, reducing external static interference.
[0044] Meanwhile, the antistatic layer 2 on the outer surface of the steel sheet substrate 1 continues to play a role, the conductive transition layer 20 ensures the bonding and conductivity between the antistatic coating 21 and the steel sheet substrate 1, the antistatic coating 21 controls the surface resistance of the steel sheet within a suitable range and dissipates static electricity, and the wear-resistant protective layer 22 protects the antistatic coating 21 from wear.
[0045] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. An antistatic 3C communication steel sheet, comprising a steel sheet substrate (1), characterized in that: The surface of the steel sheet substrate (1) is provided with a plurality of micro protrusions (10) for increasing the surface area. An antistatic layer (2) is provided on the outer surface of the steel sheet substrate (1). The antistatic layer (2) includes a conductive transition layer (20) provided on the outer surface of the steel sheet substrate (1). An antistatic coating (21) is provided on the outer surface of the conductive transition layer (20). A wear-resistant protective layer (22) is provided on the outer surface of the antistatic coating (21).
2. The antistatic 3C communication steel sheet according to claim 1, characterized in that: The thickness of the conductive transition layer (20) is between 0.5 and 2 μm, and the surface roughness of the conductive transition layer (20) is between 0.2 and 0.5 μm.
3. The antistatic 3C communication steel sheet according to claim 1, characterized in that: The thickness of the antistatic coating (21) is between 5 and 15 μm, and the surface resistance of the antistatic coating (21) is 10 Ω·cm. 6 ~10 9 Between Ω.
4. The antistatic 3C communication steel sheet according to claim 1, characterized in that: It also includes a communication equipment housing (3) for mounting the steel sheet substrate (1), wherein a plurality of heat dissipation holes (30) are provided on one side plate of the communication equipment housing (3).
5. The antistatic 3C communication steel sheet according to claim 4, characterized in that: An air inlet duct (4) is fixedly installed on the other side plate of the outer shell (3) of the communication device. An electrostatic eliminator (41) is provided on the air inlet duct (4), and a fan (43) is fixedly installed inside the air inlet duct (4).
6. The antistatic 3C communication steel sheet according to claim 5, characterized in that: The front side of the air inlet duct (4) is provided with a plug hole (40), and the discharge end (411) of the static eliminator (41) is plugged into the plug hole (40).
7. The antistatic 3C communication steel sheet according to claim 6, characterized in that: A fixed support (42) is fixedly installed on the housing of the static eliminator (41), and the fixed support (42) is detachably connected to the air inlet duct (4).
8. The antistatic 3C communication steel sheet according to claim 5, characterized in that: A threaded cap (44) is threaded onto the air inlet end of the air inlet cylinder (4). A filter screen (46) for air filtration is fixedly installed on the inner wall of the threaded cap (44). An inner limiting rod (45) for supporting the filter screen (46) is fixedly installed between the front side of the filter screen (46) and the inner wall of the threaded cap (44).