Heat-resistant insulated low-voltage cable
By installing a multi-layer sheathing structure and anti-aging coating inside and outside the cable, the problem of existing shielded cables being easily deformed under high temperature and external pressure is solved, and the stability and heat resistance of the cable are improved.
Patent Information
- Application Number
- CN202420634120.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-29
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2034-03-29
AI Technical Summary
Existing shielded cables are prone to deform under high temperature and external pressure, resulting in short circuit or circuit breaker, and have poor stability, which is not conducive to long-term use.
A heat-resistant insulated low-voltage cable is designed, by providing a sheath structure inside and outside the cable, including a copper-clad steel core, a multi-layer signal cable, a reinforced protective layer and an outer sheath, and an anti-aging coating is applied to the outer sheath.
The cable improves the stability and heat resistance of the cable through the design of the inner and outer sheath structure, extends the service life, and enhances the overall structural stability of the cable.
Smart Images
Figure CN222507212U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of cables, in particular to a heat-resistant insulating low-voltage cable. Background Art
[0002] Shielded cable is a transmission line that uses a metal mesh braided layer to wrap the signal line. A metal shielding layer is wrapped around the cable and the shielding layer is completely and well grounded. This can effectively filter out unnecessary electromagnetic waves and ensure the transmission performance of the system in an environment with electromagnetic interference. Existing shielded cables often have problems with insufficient strength and high temperature resistance. They are easily deformed by external forces, resulting in short circuits or open circuits, affecting the normal use of electrical equipment. In addition, they have poor stability and are not conducive to long-term use. Utility Model Content
[0003] In order to solve some problems existing in the above-mentioned prior art, the utility model provides a heat-resistant insulated low-voltage cable to solve the deficiencies existing in the prior art.
[0004] To achieve the above-mentioned purpose, the utility model provides a heat-resistant insulated low-voltage cable, including a low-voltage cable, wherein the low-voltage cable includes a cable body, a combined cable is arranged inside the cable body, a reinforced protective layer is arranged outside the combined cable, a core is arranged at the center of the combined cable, a signal cable is arranged around the core, a cable outer sheath is arranged outside the reinforced protective layer, and a cable inner sheath is arranged between the reinforced protective layers of the combined cable.
[0005] As a further improvement of the utility model, in order to ensure the stability of the internal structure, the wire core is a copper-clad steel core, which is formed by concentrically twisting high-heat-resistant copper alloy wires, and the copper-clad steel core is a load-bearing core.
[0006] As a further improvement of the present invention, in order to further ensure the stability of the internal structure, the signal cables are provided in multiple groups, copper wires are provided inside the signal cables, and a filling cable is provided on one side of the signal cables.
[0007] As a further improvement of the utility model, in order to ensure the integrity of the internal signal, the copper wire is composed of a plurality of single wires twisted together, an internal insulating layer is applied to the outside of the copper wire, and a magnetic shielding layer is applied on the internal insulating layer.
[0008] As a further improvement of the present invention, in order to increase the heat resistance of the internal structure of the cable body, the filling material of the reinforced protective layer is polyvinyl chloride.
[0009] As a further improvement of the utility model, in order to increase the stability of the external structure of the cable body, the cable outer sheath includes a reinforcement layer, a copper mesh is arranged inside the reinforcement layer, and the reinforcement layer is arranged in a concentric circle structure, an external insulation layer is arranged outside the reinforcement layer, and the outer wall of the external insulation layer is coated with a uniformly distributed anti-aging coating.
[0010] As a further improvement of the present invention, in order to ensure that the interior has a certain degree of heat resistance, the material of the cable inner sheath is halogen-free low-smoke polyolefin, and an insulating armor layer is also wrapped around the outside of the cable inner sheath.
[0011] When the utility model is working, the low-voltage cable comprises a cable body, a combined cable is arranged inside the cable body, a reinforced protective layer is arranged outside the combined cable, a wire core is arranged at the central part of the combined cable, a signal cable is arranged around the wire core, a cable outer sheath is arranged outside the reinforced protective layer, a cable inner sheath is arranged between the reinforced protective layers, the wire core is a copper-clad steel core, the copper-clad steel core is formed by concentrically twisting high-heat-resistant copper alloy wires, a plurality of signal cables are arranged, the filling material of the reinforced protective layer is polyvinyl chloride, the cable outer sheath comprises a reinforcement layer, and a copper mesh is arranged inside the reinforcement layer.
[0012] The beneficial effect of the utility model is that the utility model provides a heat-resistant insulated low-voltage cable, which ensures the stability of the internal and external structures of the cable by arranging sheath structures inside and outside, and arranges a copper mesh to enhance the stability of the cable structure. The arrangement of the inner sheath and reinforced protective layer of the cable can make the cable have a certain heat resistance, and an anti-aging coating is applied on the outer sheath of the cable to increase the service life of the cable. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] In order to facilitate the understanding of those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings:
[0014] Figure 1 It is a structural diagram of the utility model.
[0015] Among them, 1 combined cable, 2 reinforced protective layer, 3 cable outer sheath, 4 cable inner sheath, 5 wire core, 6 signal cable, 601 copper conductor, 602 inner insulation layer, 603 magnetic shielding layer, 7 filling cable, 8 reinforcement layer, 9 copper mesh, 10 outer insulation layer, and 11 insulation armor layer. DETAILED DESCRIPTION
[0016] In order to enable those skilled in the art to better understand the technical solution in this application, Figure 1 The present invention is further described in the following embodiments, which are only used to more clearly illustrate the technical solution of the present invention and are not intended to limit the protection scope of the present invention.
[0017] like Figure 1 A heat-resistant insulated low-voltage cable is shown, comprising a low-voltage cable, wherein the low-voltage cable comprises a cable body, a combined cable 1 is arranged inside the cable body, a reinforced protective layer 2 is arranged outside the combined cable 1, a core 5 is arranged at the center of the combined cable 1, a signal cable 6 is arranged around the core 5, a cable outer sheath 3 is arranged outside the reinforced protective layer 2, and a cable inner sheath 4 is arranged between the reinforced protective layers 2 of the combined cable 1.
[0018] The wire core 5 is a copper-clad steel core, which is formed by concentrically twisting high-heat-resistant copper alloy wires, and the copper-clad steel core is a load-bearing core.
[0019] The signal cables 6 are provided in multiple groups, a copper conductor 601 is provided inside the signal cables 6 , and a filling cable 7 is provided on one side of the signal cables 6 .
[0020] The copper wire 601 is composed of a plurality of single wires twisted together. An internal insulating layer 602 is coated on the outside of the copper wire 601 , and a magnetic shielding layer 603 is coated on the internal insulating layer 602 .
[0021] The filling material of the reinforcement protection layer 2 is polyvinyl chloride.
[0022] The cable outer sheath 3 includes a reinforcement layer 8, a copper mesh 9 is arranged inside the reinforcement layer 8 in a concentric circle structure, an external insulation layer 10 is arranged outside the reinforcement layer 8, and the outer wall of the external insulation layer 10 is coated with a uniformly distributed anti-aging coating.
[0023] The cable inner sheath 4 is made of halogen-free low-smoke polyolefin, and an insulating armor layer 11 is wrapped around the outside of the cable inner sheath 4 .
[0024] When the utility model is working, the low-voltage cable includes a cable body, a combined cable 1 is arranged inside the cable body, a reinforced protective layer 2 is arranged outside the combined cable 1, a wire core 5 is arranged at the center of the combined cable 1, a signal cable 6 is arranged around the wire core 5, a cable outer sheath 3 is arranged outside the reinforced protective layer 2, and a cable inner sheath 4 is arranged between the reinforced protective layers 2 of the combined cable 1. The wire core 5 is a copper-clad steel core, which is formed by concentrically twisting high-heat-resistant copper alloy wires. The signal cable 6 is provided in multiple groups, and the cable outer sheath 3 includes a reinforcement layer 8, and a copper mesh 9 is arranged inside the reinforcement layer 8 to enhance the stability of the cable structure. The cable outer sheath 3 includes a reinforcement layer 8, a copper mesh 9 is arranged inside the reinforcement layer 8, and the reinforcement layer 8 is arranged in a concentric circle structure. An external insulating layer 10 is arranged outside the reinforcement layer 8, and the outer wall of the external insulating layer 10 is coated with a uniformly distributed anti-aging coating to improve the service life of the cable. The cable ensures the stability of the internal and external structures of the cable by arranging sheath structures inside and outside. The filling material of the reinforced protective layer 2 is polyvinyl chloride, and the material of the cable inner sheath 4 is halogen-free low-smoke polyolefin. The outside of the cable inner sheath 4 is also wrapped with an insulating armor layer 11. The arrangement of the cable inner sheath 4 and the reinforced protective layer 2 can make the cable have a certain heat resistance.
[0025] The present utility model is not limited to the above-mentioned embodiments. On the basis of the technical solution disclosed in the present utility model, technicians in this field can make some substitutions and deformations to some technical features therein according to the disclosed technical content without creative labor, and these substitutions and deformations are all within the protection scope of the present utility model.
Claims
1. A heat-resistant insulated low-voltage cable, comprising a low-voltage cable, characterized in that: The low-voltage cable comprises a cable body, wherein a combined cable (1) is arranged inside the cable body, a reinforced protective layer (2) is arranged outside the combined cable (1), a wire core (5) is arranged at the center of the combined cable (1), a signal cable (6) is arranged around the wire core (5), a cable outer sheath (3) is arranged outside the reinforced protective layer (2), and the combined cable (1) is provided with a cable inner sheath (4) between the reinforced protective layers (2), the wire core (5) is a copper-clad steel core, the copper-clad steel core is formed by concentrically twisting high-heat-resistant copper alloy wires, and the copper-clad steel core is a load-bearing core, a plurality of signal cables (6) are arranged, a copper conductor (601) is arranged inside the signal cable (6), and a filling cable (7) is arranged on one side of the signal cable (6).
2. A heat-resistant insulated low-voltage cable according to claim 1, characterized in that: The copper conductor (601) is composed of a plurality of twisted single wires; an internal insulating layer (602) is applied to the outside of the copper conductor (601); and a magnetic shielding layer (603) is applied to the internal insulating layer (602).
3. A heat-resistant insulated low-voltage cable according to claim 1, characterized in that: The filling material of the reinforcement protection layer (2) is polyvinyl chloride.
4. A heat-resistant insulated low-voltage cable according to claim 1, characterized in that: The cable outer sheath (3) comprises a reinforcement layer (8), a copper mesh (9) is arranged inside the reinforcement layer (8) and is arranged in a concentric circle structure, an external insulation layer (10) is arranged outside the reinforcement layer (8), and the outer wall of the external insulation layer (10) is coated with a uniformly distributed anti-aging coating.
5. A heat-resistant insulated low-voltage cable according to claim 1, characterized in that: The material of the cable inner sheath (4) is halogen-free low-smoke polyolefin, and an insulating armor layer (11) is also wrapped around the outside of the cable inner sheath (4).