Stretchable halogen-free low-smoke cable
By setting up a multi-layer structure on the outer surface of the halogen-free low-smoke cable, including a halogen-free low-smoke flame-retardant polyethylene insulating layer, a thermoplastic vulcanized rubber high-elastic layer, a thermoplastic polyurethane waterproof layer, a polyolefin flame-retardant layer, a tin-plated copper wire braided shielding layer and a thermoplastic polyolefin outer sheath, the problem of poor tensileability of the cable in dynamic application environments is solved, and the safety and durability of the cable are improved.
Patent Information
- Application Number
- CN202421122101.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-22
- Publication Date
- 2025-03-04
- Estimated Expiration
- 2034-05-22
AI Technical Summary
Existing halogen-free low-smoke cables have poor tensile properties in dynamic application environments and are prone to damage during bending and stretching, resulting in degradation of insulation performance or breakage, affecting the stability and safety of power transmission.
A stretchable halogen-free low smoke cable including a conductor, an insulating layer, a high elastic layer, a waterproof layer, a flame retardant layer, a shielding layer and an outer sheath were designed. Among them, the insulating layer is made of halogen-free low smoke flame retardant polyethylene, the high elastic layer is made of thermoplastic vulcanized rubber, the waterproof layer is made of thermoplastic polyurethane, the flame retardant layer is made of polyolefin, the shielding layer is made of tin-plated copper wire braided, and the outer sheath is made of thermoplastic polyolefin.
By setting up a multi-layer structure on the outer surface of the cable, the safety, physical durability, electrical stability, flame retardant properties and electromagnetic interference resistance of the cable are improved, so that the cable has a certain tensile property, prevent damage during use, and improve the safety of the cable use.
Smart Images
Figure CN222562318U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of cables, in particular to a stretchable halogen-free and low-smoke cable. Background Art
[0002] As society's awareness of safe production and environmental protection continues to increase, especially in the fields of construction, rail transit, data centers, aerospace, new energy vehicles, offshore wind power, etc., the demand for cables is growing, and higher requirements are also placed on their safety performance and environmental protection properties. Traditional polyvinyl chloride cables will produce a large amount of toxic smoke and halogenated gases when burned, which not only pollutes the environment, but also seriously threatens personal safety.
[0003] Therefore, the development of halogen-free, low-smoke, non-toxic, high-performance cables has become an inevitable trend in the development of the industry, but their mechanical properties, especially tensile strength and bending resistance, are often unsatisfactory, limiting their use in dynamic application environments. In construction and installation, equipment maintenance, and robot moving parts connection, cables need to be bent and stretched frequently. Traditionally designed cables are easily damaged under such dynamic loads, resulting in reduced insulation performance or even breakage, affecting the stability and safety of power transmission. Utility Model Content
[0004] The utility model aims to provide a stretchable halogen-free and low-smoke cable. The device is used to work, thereby solving the problem of poor stretchability of the existing halogen-free and low-smoke cables.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a stretchable halogen-free low-smoke cable, comprising a conductor, an insulating layer arranged on the outer surface of the conductor, a high elasticity layer arranged on the outer surface of the insulating layer, a waterproof layer arranged on the outer surface of the high elasticity layer, a flame retardant layer arranged on the outer surface of the waterproof layer, a shielding layer arranged on the outer surface of the flame retardant layer, and an outer sheath arranged on the outer surface of the shielding layer.
[0006] Furthermore, the insulating layer is a component made of halogen-free, low-smoke, flame-retardant polyethylene.
[0007] Furthermore, the high elastic layer is a member made of thermoplastic vulcanized rubber.
[0008] Furthermore, the waterproof layer is a component made of thermoplastic polyurethane.
[0009] Furthermore, the flame retardant layer is a member made of polyolefin.
[0010] Furthermore, the shielding layer is a retractable shielding net made of tinned copper wires.
[0011] Furthermore, the outer sheath is a member made of thermoplastic polyolefin.
[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:
[0013] The utility model proposes a stretchable halogen-free and low-smoke cable. The halogen-free and low-smoke cables in the prior art have poor stretchability. The utility model improves the safety of the cable by arranging an insulating layer on the outer surface of the conductor. The physical durability of the cable is enhanced due to the high elasticity layer on the outer surface of the insulating layer. The electrical stability of the cable in a humid or underwater environment is ensured due to the waterproof layer on the outer surface of the high elasticity layer. The flame retardant layer on the outer surface of the waterproof layer further enhances the flame retardant properties of the cable. The shielding layer on the outer surface of the flame retardant layer can effectively suppress electromagnetic interference. Finally, the outer sheath on the outer surface of the shielding layer provides additional protection, so that the cable has a certain stretchability on the basis of being halogen-free, low-smoke and flame retardant, thereby preventing damage during use and improving the safety of cable use. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 The utility model is a schematic diagram of the structure of a stretchable halogen-free low-smoke cable.
[0015] In the figure: 1. Conductor; 2. Insulation layer; 3. High elastic layer; 4. Waterproof layer; 5. Flame retardant layer; 6. Shielding layer; 7. Outer sheath. DETAILED DESCRIPTION
[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0017] In order to further understand the content of the utility model, the utility model is described in detail in conjunction with the accompanying drawings.
[0018] Combination Figure 1 A stretchable halogen-free low-smoke cable comprises a conductor 1, an insulating layer 2 arranged on the outer surface of the conductor 1, a high elastic layer 3 arranged on the outer surface of the insulating layer 2, a waterproof layer 4 arranged on the outer surface of the high elastic layer 3, a flame retardant layer 5 arranged on the outer surface of the waterproof layer 4, a shielding layer 6 arranged on the outer surface of the flame retardant layer 5, and an outer sheath 7 arranged on the outer surface of the shielding layer 6.
[0019] The utility model is further described below in conjunction with embodiments.
[0020] Embodiment 1:
[0021] See also Figure 1 The insulation layer 2 is a component made of halogen-free low-smoke flame-retardant polyethylene, which improves the safety of the cable, reduces the release of toxic smoke during fire, and protects personnel safety.
[0022] The high elastic layer 3 is a member made of thermoplastic vulcanized rubber, which enhances the physical durability of the cable, allows the cable to remain undamaged under tension, and is suitable for dynamic installation environments.
[0023] The waterproof layer 4 is a component made of thermoplastic polyurethane, which ensures the electrical stability of the cable in a wet or underwater environment and prolongs its service life.
[0024] The flame retardant layer 5 is a component made of polyolefin, which further enhances the flame retardant properties of the cable and works together with the insulation layer to improve the overall fire protection level.
[0025] The shielding layer 6 is a retractable shielding net made of tinned copper wire, which effectively suppresses electromagnetic interference and protects signal integrity.
[0026] The outer jacket 7 is a component made of thermoplastic polyolefin, which provides additional protection and is easy to process and recycle.
[0027] Specifically, an insulating layer 2 made of halogen-free low-smoke flame-retardant polyethylene is provided on the outer surface of the conductor 1, thereby improving the safety of the cable, reducing the release of toxic smoke during fire, and protecting the safety of personnel. In addition, because the outer surface of the insulating layer 2 is provided with a high elastic layer 3 made of thermoplastic vulcanized rubber, the physical durability of the cable is enhanced, allowing the cable to remain intact under tension and be suitable for dynamic installation environments. In addition, because the outer surface of the high elastic layer 3 is provided with a waterproof layer 4 made of thermoplastic polyurethane, the electrical stability of the cable in a humid or underwater environment is ensured, and the service life is extended. In addition, because the outer surface of the waterproof layer 4 is provided with A flame retardant layer 5 made of polyolefin is provided, thereby further strengthening the flame retardant properties of the cable, and working together with the insulating layer 2 to improve the overall fire protection level. Because the outer surface of the flame retardant layer 5 is provided with a retractable shielding layer 6 made of tinned copper wire, it can effectively suppress electromagnetic interference and protect the integrity of the signal. Finally, because the outer surface of the shielding layer 6 is provided with an outer sheath 7 made of thermoplastic polyolefin, additional protection is provided, and it is easy to process and recycle. Therefore, the cable has a certain degree of stretchability on the basis of being halogen-free, low-smoke and flame-retardant, thereby preventing damage during use and improving the safety of cable use.
[0028] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.
[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A stretchable halogen-free low-smoke cable, characterized by: The invention comprises a conductor (1), an insulating layer (2) arranged on the outer surface of the conductor (1), a high elasticity layer (3) arranged on the outer surface of the insulating layer (2), a waterproof layer (4) arranged on the outer surface of the high elasticity layer (3), a flame retardant layer (5) arranged on the outer surface of the waterproof layer (4), a shielding layer (6) arranged on the outer surface of the flame retardant layer (5), and an outer sheath (7) arranged on the outer surface of the shielding layer (6).
2. A stretchable halogen-free low-smoke cable according to claim 1, characterized in that: The insulating layer (2) is a component made of halogen-free, low-smoke, flame-retardant polyethylene.
3. A stretchable halogen-free low-smoke cable according to claim 1, characterized in that: The high elastic layer (3) is a member made of thermoplastic vulcanized rubber.
4. The stretchable halogen-free low-smoke cable according to claim 1, characterized in that: The waterproof layer (4) is a component made of thermoplastic polyurethane.
5. The stretchable halogen-free low-smoke cable according to claim 1, characterized in that: The flame retardant layer (5) is a member made of polyolefin.
6. The stretchable halogen-free low-smoke cable according to claim 1, characterized in that: The shielding layer (6) is a retractable shielding net made of tinned copper wires.
7. The stretchable halogen-free low-smoke cable according to claim 1, characterized in that: The outer sheath (7) is a component made of thermoplastic polyolefin.