Corrosion-resistant shielding fireproof cable

Abstract

The utility model discloses a corrosion-resistant shielding fireproof cable, which belongs to the field of cables and comprises a conductor, an insulating layer is wrapped outside the conductor, a copper sheath is attached to the outer edge of the insulating layer, a filler is filled in an inner cavity of the copper sheath, a stainless steel layer is wrapped on the outer edge of the copper sheath, and a corrosion-resistant coating is coated on the outer edge of the stainless steel layer. By arranging the copper sheath, the corrosion of external corrosive substances can be effectively resisted, the service life of the cable is prolonged, meanwhile, the copper sheath has good shielding performance, electromagnetic interference can be effectively isolated, the stability of signal transmission is ensured, the cable is not easy to deform when being bent and pressed due to the existence of the filler, and the mechanical strength is improved.

Description

Technical Field

[0001] This application relates to the field of cable technology, and more particularly to corrosion-resistant shielded fireproof cables. Background Technology

[0002] In the field of communications, cables are essential components for connecting and transmitting signals. Because cables often encounter various complex environments during installation, they need to have excellent properties such as fire resistance, moisture resistance, high temperature resistance, low temperature resistance, and corrosion resistance.

[0003] Currently, the most common cables on the market include ordinary cables, fire-resistant cables, and shielded cables. While ordinary cables are less expensive, they are easily damaged in environments with high temperatures, high humidity, and chemical corrosion, increasing safety risks. Fire-resistant cables improve their fire resistance by adding flame retardants or using special insulation materials, but their corrosion resistance is limited, usually requiring additional protective sheathing. Shielded cables are primarily used to reduce electromagnetic interference and ensure signal transmission quality, but often neglect corrosion resistance requirements. These traditional cables struggle to meet comprehensive protection needs in specific application scenarios, limiting their widespread application and development.

[0004] Ordinary cables: These use PVC or other synthetic materials as sheaths, making them inexpensive, but they have poor corrosion resistance and temperature resistance. These cables have a shorter lifespan in humid or acidic / alkaline environments, and are prone to causing safety accidents.

[0005] Fire-resistant cables: These cables enhance their fire resistance by using materials such as ceramicized silicone rubber and mica tape. However, the outer sheath of these cables is mostly made of plastic, which is susceptible to chemical corrosion, thus reducing their overall lifespan.

[0006] Shielded cables: These use metal braided mesh or aluminum foil as the shielding layer, which effectively reduces electromagnetic interference. However, they are less resistant to chemical corrosion and require additional protection measures.

[0007] While existing cables perform well in their individual functions, their overall performance fails to meet practical needs under complex environmental conditions, especially when faced with high temperatures, humidity variations, and chemical corrosion. This not only increases maintenance costs but may also pose safety hazards. Utility Model Content

[0008] In view of the shortcomings of the prior art, this utility model provides a corrosion-resistant shielded fireproof cable, which overcomes the shortcomings of the prior art and aims to solve the problems in the background art.

[0009] To achieve the above objectives, this application adopts the following technical solution: a corrosion-resistant shielded fireproof cable, comprising a conductor, an insulation layer wrapped around the conductor, a copper sheath attached to the outer edge of the insulation layer, a filler filling the inner cavity of the copper sheath, a stainless steel layer wrapped around the outer edge of the copper sheath, and an anti-corrosion coating applied to the outer edge of the stainless steel layer.

[0010] In a preferred embodiment, sealing rings are fitted on both sides of the copper sheath.

[0011] By adopting the above technical solutions, the waterproof performance of the cable can be guaranteed, ensuring that rainwater will not easily penetrate into the interior of the cable.

[0012] In a preferred embodiment, the conductor is made of multiple strands of tin-plated copper wire twisted together, with a diameter of 1.5 mm.

[0013] By adopting the above technical solution, the tin layer can reduce contact resistance, thereby improving conductivity and ensuring that the electric heating tape maintains a stable heating effect during long-term operation.

[0014] In a preferred embodiment, the copper sheath is made of T2 copper with a wall thickness of 1.2 mm.

[0015] By adopting the above technical solutions, it is possible to provide excellent corrosion resistance and shielding performance.

[0016] In a preferred embodiment, the anti-corrosion coating is an epoxy resin coating.

[0017] By adopting the above technical solutions, the corrosion resistance can be further improved.

[0018] In a preferred embodiment, the filler is polyethylene foam particles, evenly distributed inside the copper sheath. The filler can also be a lighter foamed polyurethane.

[0019] By adopting the above technical solutions, the cable can be supported and buffered to prevent deformation. The use of lightweight foamed polyurethane can reduce the weight of the cable and facilitate transportation and installation.

[0020] The beneficial effects of this application are:

[0021] 1. This corrosion-resistant shielded fireproof cable effectively resists the erosion of external corrosive substances by setting a copper sheath, extending the service life of the cable. At the same time, the copper sheath has good shielding performance, which can effectively isolate electromagnetic interference and ensure the stability of signal transmission. The presence of filler makes the cable less prone to deformation when bent and compressed, improving its mechanical strength.

[0022] 2. This corrosion-resistant shielded fireproof cable uses a sealing ring to ensure its waterproof performance, preventing rainwater from easily penetrating into the cable's interior. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this application;

[0024] Figure 2 This is a schematic diagram of the cross-sectional structure of the anti-corrosion coating in this application;

[0025] Figure 3 This is a schematic diagram of the stainless steel layer and copper sheath structure of this application;

[0026] Figure 4 This is a schematic diagram of the sealing ring structure of this application.

[0027] The following are the labels in the diagram: 1. Conductor; 2. Insulation layer; 3. Copper sheath; 4. Filler; 5. Stainless steel layer; 6. Anti-corrosion coating; 7. Sealing ring. Detailed Implementation

[0028] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0029] Reference Figure 1-4 The corrosion-resistant shielded fireproof cable includes a conductor 1, an insulation layer 2 wrapped around the conductor 1, a copper sheath 3 attached to the outer edge of the insulation layer 2, a filler 4 filling the inner cavity of the copper sheath 3, a stainless steel layer 5 wrapped around the outer edge of the copper sheath 3, and an anti-corrosion coating 6 applied to the outer edge of the stainless steel layer 5.

[0030] See Figure 4 The copper sheath 3 is fitted with sealing rings 7 on both sides, which ensures the waterproof performance of the cable and prevents rainwater from easily penetrating into the interior of the cable.

[0031] See Figure 1 - Figure 4 Conductor 1 is made of multiple strands of tin-plated copper wire with a diameter of 1.5mm, which reduces contact resistance and improves conductivity, ensuring that the electric heating tape maintains a stable heating effect during long-term operation.

[0032] See Figure 3 and Figure 4 The copper sheath 3 is made of T2 copper with a wall thickness of 1.2mm, which provides excellent corrosion resistance and shielding performance.

[0033] See Figure 1 The anti-corrosion coating 6 is an epoxy resin coating, which further improves the corrosion resistance.

[0034] See Figure 3 The filler 4 is made of polyethylene foam particles, which are evenly distributed inside the copper sheath 3. The filler 4 can be made of lighter polyurethane foam, which can provide support and cushioning to prevent cable deformation. Using lightweight polyurethane foam can reduce the weight of the cable and facilitate transportation and installation.

[0035] Working principle: First, the sealing ring 7 ensures the cable's waterproof performance, preventing rainwater from easily penetrating into the cable's interior. The copper sheath 3 provides excellent corrosion resistance and shielding performance. The anti-corrosion coating 6 further enhances corrosion resistance. The filler 4 provides support and cushioning, preventing cable deformation.

[0036] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0037] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within 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.

[0038] The present invention has been described above with reference to specific embodiments. However, those skilled in the art should understand that these descriptions are exemplary and not intended to limit the scope of protection of the present invention. Those skilled in the art can make various modifications and variations to the present invention based on its spirit and principles, and these modifications and variations are also within the scope of the present invention.

Claims

1. A corrosion-resistant shielded fireproof cable, comprising a conductor (1), characterized in that, The conductor (1) is wrapped with an insulating layer (2), and a copper sheath (3) is attached to the outer edge of the insulating layer (2). The inner cavity of the copper sheath (3) is filled with filler (4). The outer edge of the copper sheath (3) is wrapped with a stainless steel layer (5), and the outer edge of the stainless steel layer (5) is coated with an anti-corrosion coating (6).

2. The corrosion-resistant shielded fireproof cable according to claim 1, characterized in that, The copper sheath (3) is fitted with sealing rings (7) on both sides.

3. The corrosion-resistant shielded fireproof cable according to claim 1, characterized in that, The conductor (1) is made of multiple strands of tin-plated copper wire twisted together, with a diameter of 1.5 mm.

4. The corrosion-resistant shielded fireproof cable according to claim 1, characterized in that, The copper sheath (3) is made of T2 copper and has a wall thickness of 1.2 mm.

5. The corrosion-resistant shielded fireproof cable according to claim 1, characterized in that, The anti-corrosion coating (6) is an epoxy resin coating.

6. The corrosion-resistant shielded fireproof cable according to claim 1, characterized in that, The filler (4) is made of polyethylene foam particles, which are evenly distributed inside the copper sheath (3). The filler (4) can be made of lighter foamed polyurethane.

Images