Copper cable with good flame retardant effect

Abstract

The utility model discloses a copper cable with a good flame retardant effect, which belongs to the field of copper cables and comprises a cable main body, a copper core is arranged in the cable main body, a material layer is wrapped outside the copper core, and the material layer comprises a heat-resistant layer arranged outside the copper core. By arranging a multi-layer structure, the flame retardant property, the heat resistance, the weather resistance and the mechanical strength of the cable are remarkably improved; the halogen-free polyolefin is adopted as the flame-retardant layer, so that the flame-retardant cable is low-smoke and non-toxic during combustion, fire spreading is effectively prevented, the environment-friendly requirement is met, good heat resistance is achieved, the heat-resistant layer is made of XLPE, stable performance can be kept in a high-temperature environment, material decomposition is delayed, excellent weather resistance is achieved, the weather-resistant layer is made of thermoplastic elastomer (TPE), and the flame-retardant performance is good. The cable can adapt to complex environmental conditions such as high temperature, moisture and ultraviolet irradiation, the mechanical strength is enhanced, the protective layer is made of nylon materials, excellent wear resistance and mechanical protection are provided, and the service life of the cable is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model belongs to copper cable technical field, and specifically relates to a copper cable with good flame-retardant effect. BACKGROUND

[0002] As a core component of power transmission and signal transmission, copper cables are widely used in power systems, communication networks, industrial equipment, and household appliances. However, traditional copper cables often lack flame retardant properties in high-temperature or fire environments, which can easily cause fire spread and result in severe property loss and safety hazards.

[0003] Currently, common copper cables on the market mostly use polyvinyl chloride (PVC) as insulation and sheath material. Although PVC has certain flame retardant properties, it can decompose and release toxic gases under high-temperature or open flame conditions, not only exacerbating fire risks but also causing harm to the environment and human health. In addition, PVC has poor heat resistance and weather resistance, and is prone to aging and cracking when exposed to high temperatures, humidity, or ultraviolet light for a long time, further reducing the service life and safety of the cable. To improve the flame retardant properties of the cable, existing technologies usually add flame retardants or use flame-retardant materials (such as halogen-free polyolefins). However, single material improvement often cannot balance the heat resistance, weather resistance, and mechanical strength of the cable, resulting in insufficient comprehensive performance of the cable in complex environments. Therefore, the utility model provides a copper cable with good flame-retardant effect. SUMMARY

[0004] The utility model aims at providing a copper cable with good flame-retardant effect to solve the problems raised in the background.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a copper cable with good flame-retardant effect, comprising a cable main body, a copper core inside the cable main body, a material layer wrapped outside the copper core, a heat-resistant layer provided outside the copper core, a flame-retardant layer, a weather-resistant layer, and a protective layer outside the heat-resistant layer.

[0006] As a preferred embodiment, the heat-resistant layer is bonded to the outside of the copper core, and the material of the heat-resistant layer is cross-linked polyethylene.

[0007] As a preferred embodiment, the flame-retardant layer is located between the heat-resistant layer and the weather-resistant layer, and the material of the flame-retardant layer is halogen-free polyolefin.

[0008] As a preferred embodiment, the weather-resistant layer is located between the flame-retardant layer and the protective layer, and the weather-resistant layer is a thermoplastic elastomer.

[0009] As a preferred embodiment, the protective layer is included outside the weather-resistant layer, and the material of the weather-resistant layer is nylon.

[0010] As a preferred embodiment, the weather-resistant layer is provided between the weather-resistant layers.

[0011] Compared with the prior art, the utility model has the beneficial effects that:

[0012] The copper cable with good flame-retardant effect significantly improves the flame-retardant performance, heat resistance, weather resistance and mechanical strength of the cable through the multi-layer structure (heat-resistant layer, flame-retardant layer, weather-resistant layer and protective layer);

[0013] Excellent flame-retardant performance, using halogen-free polyolefin as the flame-retardant layer, low smoke and non-toxic during combustion, effectively preventing fire spread, meeting environmental protection requirements;

[0014] Good heat resistance, the heat-resistant layer uses cross-linked polyethylene (XLPE), which can maintain stable performance in high-temperature environments and delay material decomposition;

[0015] Excellent weather resistance, the weather-resistant layer uses thermoplastic elastomer (TPE), enabling the cable to adapt to complex environmental conditions such as high temperature, humidity and ultraviolet radiation;

[0016] Enhanced mechanical strength, the protective layer uses nylon material, providing excellent wear resistance and mechanical protection, prolonging the service life of the cable;

[0017] Metal braided layer, further enhancing the anti-interference ability and mechanical protection performance of the cable, suitable for complex electromagnetic environments. BRIEF DESCRIPTION OF DRAWINGS

[0018] Fig. 1 It is a front view of the structure of the utility model;

[0019] Fig. 2 It is a sectional view of the structure of the utility model.

[0020] In the figure: 1, cable main body; 2, copper core; 3, material layer; 301, protective layer; 302, weather-resistant layer; 303, flame-retardant layer; 304, heat-resistant layer. DETAILED DESCRIPTION

[0021] The utility model will be further described below in combination with examples.

[0022] The following examples are used to illustrate the utility model, but cannot be used to limit the protection scope of the utility model. The conditions in the examples can be further adjusted according to specific conditions, and simple improvements of the method of the utility model under the concept of the utility model belong to the range required to be protected by the utility model.

[0023] Please refer to Figs. 1-2The utility model provides a copper cable with good flame -retardant effect, including cable main body 1, the inside of cable main body 1 is equipped with copper core 2, copper core 2 is wrapped with material layer 3 outside, material layer 3 includes the heat -resisting layer 304 of setting in copper core 2 outside, the outside of heat -resisting layer 304 is equipped with flame -retardant layer 303, weather layer 302 and protective layer 301, heat -resisting layer 304 is bonded in copper core 2 outside, the material of heat -resisting layer 304 is cross -linked polyethylene, copper core 2 is the conductive core part of cable, outside directly bonded heat -resisting layer 304, heat -resisting layer 304 adopts cross -linked polyethylene (XLPE) material, is tightly wrapped in copper core 2 outside through hot melting or bonding process, XLPE material has excellent heat resistance, can keep stable insulation performance under high temperature environment, delays material ageing, the high insulation performance of XLPE ensures the safe operation of cable under high pressure environment, heat -resisting layer 304 is closely combined with copper core 2, prevents delamination or fall off, improves the reliability of cable.

[0024] Wherein, the flame-retardant layer 303 is located between the heat-resistant layer 304 and the weather layer 302, the material of the flame-retardant layer 303 is halogen-free polyolefin, the flame-retardant layer 303 is located outside the heat-resistant layer 304, and is coated on the heat-resistant layer 304 by an extrusion process using halogen-free polyolefin material. The halogen-free polyolefin does not release toxic gases when burning and can effectively suppress flame spread, improving the fire safety of the cable. The halogen-free material meets environmental protection requirements, reducing harm to the environment and human body. The halogen-free polyolefin has good chemical resistance and is suitable for complex industrial environments.

[0025] In addition, the weather layer 302 is located between the flame-retardant layer 303 and the protective layer 301, and is made of thermoplastic elastomer (TPE) material. The weather layer 302 is coated on the flame-retardant layer 303 by an extrusion process. The TPE material has good ultraviolet resistance, high temperature resistance, and low temperature resistance, making it suitable for outdoor or harsh environments. The TPE material provides excellent flexibility to the cable, making it easy to install and lay. The TPE material can maintain stable performance for a long time, extending the service life of the cable.

[0026] Furthermore, the protective layer 301 is included outside the weather layer 302, and is made of nylon. The protective layer 301 is coated on the weather layer 302 by an extrusion process. The nylon material has high strength and wear resistance, effectively protecting the cable from external mechanical damage. The nylon layer can absorb external impact and prevent damage to the internal structure of the cable. The existence of the protective layer 301 significantly improves the durability of the cable.

[0027] Moreover, a metal braid layer is provided between the weather layer 302 and the weather layer 302. The metal braid layer can effectively shield external electromagnetic interference, ensuring the stability of signal transmission. The metal braid layer provides additional mechanical strength, preventing the cable from being squeezed or cut. The metal braid layer can also serve as a grounding layer, improving the safety of the cable.

[0028] The working principle and use process of the utility model: first copper core 2 is the cable conductive core part, outside directly bonding heat resistance layer 304, heat resistance layer 304 adopts crosslinked polyethylene (XLPE) material, tightly wrapped in copper core 2 outside through hot melting or bonding process, XLPE material has excellent heat resistance, can keep stable insulation performance under high temperature environment, delays material aging, the high insulation performance of XLPE ensures the safe operation of cable under high pressure environment, heat resistance layer 304 and copper core 2 tightly combine, prevent delamination or fall off, improve the reliability of cable, flame retardant layer 303 is located outside heat resistance layer 304, adopts halogen-free polyolefin material, through extrusion process is coated on heat resistance layer 304, halogen-free polyolefin does not release toxic gas when burning, and can effectively inhibit flame spread, improve the fire safety of cable, halogen-free material meets the environmental protection requirement, reduces the harm to environment and human body, halogen-free polyolefin has good chemical resistance, is suitable for complex industrial environment, protective layer 301 includes outside weather layer 302, the material of weather layer 302 is nylon, through extrusion process is coated on weather layer 302, nylon material has high strength and wear resistance, can effectively protect cable from external mechanical damage, nylon layer can absorb external impact, prevent cable internal structure from being damaged, the existence of protective layer 301 has significantly improved the durability of cable, weather layer 302 and weather layer 302 between being equipped with metal braid, metal braid can effectively shield external electromagnetic interference, ensure the stability of signal transmission, metal braid provides additional mechanical strength, prevents cable from being extruded or cut, metal braid can be used as ground layer, improves the safety of cable.

[0029] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A copper cable with good flame retardant effect, comprising a cable body (1), characterized in that: The cable body (1) has a copper core (2) inside, and the copper core (2) is wrapped with a material layer (3). The material layer (3) includes a heat-resistant layer (304) disposed outside the copper core (2). The heat-resistant layer (304) is provided with a flame-retardant layer (303), a weather-resistant layer (302) and a protective layer (301) outside the heat-resistant layer (304).

2. The copper cable with good flame retardant effect according to claim 1, characterized in that: The heat-resistant layer (304) is bonded to the outside of the copper core (2), and the heat-resistant layer (304) is made of cross-linked polyethylene.

3. The copper cable with good flame retardant effect according to claim 1, characterized in that: The flame retardant layer (303) is located between the heat-resistant layer (304) and the weather-resistant layer (302), and the flame retardant layer (303) is made of halogen-free polyolefin.

4. The copper cable with good flame retardant effect according to claim 1, characterized in that: The weather-resistant layer (302) is located between the flame-retardant layer (303) and the protective layer (301), and the weather-resistant layer (302) is a thermoplastic elastomer.

5. The copper cable with good flame retardant effect according to claim 1, characterized in that: The protective layer (301) is included outside the weather-resistant layer (302), and the weather-resistant layer (302) is made of nylon.

6. The copper cable with good flame retardant effect according to claim 1, characterized in that: A metal braided layer is provided between the weather-resistant layer (302) and the weather-resistant layer (302).

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