High-performance polyvinyl chloride insulated wire

Abstract

A high-performance polyvinyl chloride insulated wire comprises a conductor and an insulating layer wrapping the conductor, and is characterized in that the insulating layer sequentially comprises an inner insulating layer, a reinforcing layer and an outer insulating layer from inside to outside, the thickness of the inner insulating layer is smaller than that of the outer insulating layer, the inner insulating layer and the outer insulating layer are both made of polyvinyl chloride materials, and the reinforcing layer is made of polyvinyl chloride materials. The reinforcing layer is formed by weaving at least one layer of glass fibers; a plurality of heat dissipation grooves are evenly distributed in the outer insulating layer in the circumferential direction. In conclusion, through accurate structural design and material selection, comprehensive improvement of the insulating property, the mechanical strength, the heat dissipation efficiency, the economical efficiency, the safety and the like of the wire is realized, wider and higher-requirement application scenes of power transmission and signal transmission are met, and remarkable technical advantages and market application value are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric wires, in particular to a high-performance polyvinyl chloride insulated electric wire. Background Art

[0002] As the key link between power and signals, wires play an invaluable role in all areas of contemporary society. From daily household electricity use to industrial automation control, from information and communications technology to the development of new energy, wires are indispensable infrastructure. Driven by this enormous market demand, polyvinyl chloride (PVC) insulated wires, with their superior insulation properties, excellent corrosion resistance, and significant economic advantages, have become the mainstream choice among wire products. However, with technological advancements and the continuous expansion of application scenarios, the performance limitations of existing PVC insulated wires have gradually become apparent, placing higher demands on the innovation of wire technology.

[0003] 1. Limitations of compressive and tensile properties:

[0004] The design and manufacturing of traditional PVC-insulated wires often prioritize insulation performance and cost control, with relatively little consideration given to mechanical strength. This can easily cause deformation when the wires are squeezed or stretched, potentially damaging the insulation. The compressive and tensile strength of wires is particularly important in complex and dynamic installation environments, such as wiring in confined spaces and internal connections within mechanical equipment. Damage to the wires can not only affect the proper transmission of power and stable signal transmission, but can also cause faults such as short circuits and disconnections. In severe cases, it can even lead to safety incidents such as fires, posing a threat to personal and property safety.

[0005] 2. Insufficient heat dissipation performance:

[0006] With the continuous increase in the power of electrical equipment and the increasingly complex operating environments of wires, the problem of heat dissipation under high-load operation has become increasingly prominent. Although polyvinyl chloride (PVC) materials have a certain degree of heat resistance, their heat dissipation efficiency cannot meet actual requirements under long-term high-load operation. High temperatures accelerate the aging process of wire materials, leading to a decrease in insulation performance and even triggering chemical reactions within the wires, producing harmful substances. This not only shortens the service life of the wires, but also increases safety risks and threatens the stable operation of the power system.

[0007] 3. Urgent demand for high-performance wires:

[0008] Given these challenges, the wire industry urgently needs a new type of wire that maintains the inherent advantages of PVC-insulated wire while significantly improving its compressive, tensile, and heat dissipation performance. This wire should possess excellent mechanical strength, capable of withstanding various external forces of compression and stretching without deformation or damage. It should also exhibit excellent heat dissipation, effectively dissipating heat generated under high loads to maintain stable operation. Furthermore, the new wire should be environmentally friendly and sustainable, meeting modern society's increasing demands for green, low-carbon, and environmentally friendly practices.

[0009] In summary, the development of a high-performance PVC insulated wire is of great significance for solving the shortcomings of existing wires in compression, tension and heat dissipation performance, improving the service life and safety of wires, and promoting technological progress and sustainable development of the wire industry. Utility Model Content

[0010] In view of the problems existing in the prior art, the utility model provides a high-performance polyvinyl chloride insulated wire with good compression resistance, tensile strength and heat dissipation performance.

[0011] The utility model is achieved in this way. A high-performance polyvinyl chloride insulated wire includes a conductor and an insulating layer wrapped around the conductor. The characteristics are: the insulating layer includes an inner insulating layer, a reinforcement layer and an outer insulating layer in sequence from the inside to the outside, the thickness of the inner insulating layer is less than that of the outer insulating layer, the inner insulating layer and the outer insulating layer are both made of polyvinyl chloride material, the reinforcement layer is woven with at least one layer of glass fiber; and a plurality of heat dissipation grooves are evenly distributed along the circumference of the outer insulating layer.

[0012] Further preferably, the thickness of the inner insulating layer is 1 / 2-2 / 3 of the thickness of the outer insulating layer.

[0013] More preferably, the thickness of the reinforcement layer is 0.5-1 mm.

[0014] Further preferably, the depth of the heat dissipation groove is 1 / 3-1 / 2 of the thickness of the insulation layer.

[0015] The advantages and technical effects of the present invention are as follows: The high-performance polyvinyl chloride insulated wire of the present invention has achieved significant technical effect improvements through a number of innovative designs. First, the introduction of a glass fiber braided reinforcement layer greatly enhances the compressive and tensile properties of the wire, improves durability and stability, and effectively extends its service life. Secondly, the heat dissipation grooves designed on the outer insulation layer significantly optimize the heat dissipation performance of the wire, reduces the temperature during high-load operation, improves safety and reliability, and reduces problems caused by temperature increases. At the same time, the inner and outer insulation layers are made of polyvinyl chloride material and the thickness design is optimized, which not only ensures excellent insulation performance but also maximizes cost-effectiveness, reduces the weight of the wire, and improves economy and practicality. In addition, the flame retardant added to the outer insulation layer further improves the fire resistance of the wire and enhances safety in use. In summary, the present invention achieves a comprehensive improvement in the insulation performance, mechanical strength, heat dissipation efficiency, economy and safety of the wire through precise structural design and material selection, meeting a wider range of and higher-demand power transmission and signal transmission application scenarios, and has significant technical advantages and market application value. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the cross-sectional structure of the electric wire of the present utility model.

[0017] In the figure: 1. Conductor; 2. Inner insulation layer; 3. Reinforcement layer; 4. Outer insulation layer; 5. Heat sink. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0019] See also Figure 1 A high-performance polyvinyl chloride insulated wire comprises a conductor 1, the conductor being composed of a plurality of twisted copper wires and having performance in accordance with GB / T 3956-2008; an insulating layer wrapped around the conductor, the insulating layer comprising, from the inside out, an inner insulating layer 2, a reinforcing layer 3, and an outer insulating layer 4, the thickness of the inner insulating layer being less than that of the outer insulating layer; the inner and outer insulating layers being both made of polyvinyl chloride, the reinforcing layer being woven from at least one layer of glass fiber; and a plurality of heat dissipation slots 5 being uniformly distributed circumferentially on the outer insulating layer.

[0020] The technical features and technical effects of high-performance PVC insulated wires are detailed as follows:

[0021] 1. Reinforcement Layer Design and Its Technical Effect: This cable innovatively incorporates a reinforcement layer within the insulation structure. This layer, comprised of at least one woven layer of glass fiber, is located between the inner and outer insulation layers, significantly improving compressive and tensile performance. As a high-strength, high-modulus material, the woven structure of glass fiber effectively disperses and withstands external pressure and tension, significantly enhancing the cable's overall mechanical strength. This design ensures the cable maintains its shape when subjected to external forces such as compression and stretching, preventing deformation or breakage and extending its service life.

[0022] This technical feature enhances the durability of the wire: the presence of the reinforcement layer also improves the wear resistance and fatigue resistance of the wire, making the wire show higher reliability and stability in long-term use and complex environments.

[0023] 2. Heat dissipation slot design and its technical effect: On the surface of the outer insulation layer, multiple carefully designed heat dissipation slots are evenly spaced along the circumference of the wire.

[0024] This technical feature optimizes heat dissipation performance: the setting of the heat dissipation groove significantly increases the contact area between the wire surface and the outside air, promotes the rapid conduction and dissipation of heat, effectively reduces the temperature of the wire when running under high load, and avoids the degradation of insulation performance and safety hazards caused by overheating.

[0025] This technical feature improves safety and stability: good heat dissipation performance ensures the stable operation of wires under high current and high power conditions, reduces problems such as resistance changes and signal attenuation caused by temperature increases, and improves the overall safety and reliability of the power system.

[0026] 3. Material selection and thickness design of inner and outer insulation layers and their technical effects: The inner and outer insulation layers of the wire are both made of polyvinyl chloride material, and the thickness of the inner insulation layer is smaller than that of the outer insulation layer.

[0027] This technical feature ensures excellent insulation performance: PVC, as a mature insulating material, has excellent electrical insulation, chemical corrosion resistance and good processing performance, ensuring the insulation effect of wires in various environments and guaranteeing the safety and accuracy of power and signal transmission.

[0028] This technology features a balance of cost-effectiveness and performance: By rationally setting the thickness ratio of the inner and outer insulation layers, it not only meets the insulation strength requirements of the wire, but also effectively controls the amount of material used, achieving maximum cost-effectiveness. The thinner inner insulation layer facilitates heat transfer to the outer layer, while the thicker outer insulation layer provides additional protection, enhancing the durability and safety of the wire.

[0029] The outer insulation layer is made of flame-retardant polyvinyl chloride material, which significantly improves the fire resistance of the wire and enhances the safety of the wire during use.

[0030] Further preferably, the thickness of the inner insulation layer is 1 / 2-2 / 3 the thickness of the outer insulation layer. Balancing insulation performance and thermal conductivity: As the first layer of protection directly surrounding the conductor, the optimized thickness of the inner insulation layer ensures sufficient insulation strength to prevent current leakage while also promoting effective heat conduction to the outside. The thinner design helps reduce thermal resistance, allowing heat generated by the wires during high-load operation to be transferred more quickly to the outer insulation layer and then dissipated through the heat sink.

[0031] Material cost and weight control: By rationally reducing the thickness of the inner insulation layer, material costs are saved and the overall weight of the wire is reduced, making installation, transportation, and use easier, thereby improving the cost-effectiveness and practicality of the wire. In this embodiment, the thickness of the inner insulation layer is preferably 1 / 2 the thickness of the outer insulation layer.

[0032] Further preferably, the thickness of the reinforcement layer is 0.5-1 mm. Optimizing the thickness of the reinforcement layer ensures that the wire maintains high mechanical strength without adding unnecessary weight and cost due to excessive thickness. This range effectively resists external compression and stretching while maintaining the wire's flexibility and bendability, facilitating application in various scenarios. In this embodiment, 0.5 mm is preferred.

[0033] Further preferably, the depth of the heat dissipation groove is 1 / 3-1 / 2 the thickness of the insulation layer. In this embodiment, the preferred depth of the heat dissipation groove is 1 / 3 the thickness of the insulation layer. This optimized depth ensures maximum contact area between the wire surface and the outside air, thereby improving heat dissipation efficiency. A heat dissipation groove that is too deep may weaken the structural strength of the insulation layer, while one that is too shallow may affect the heat dissipation effect. This design ensures effective heat dissipation while maintaining the structural integrity of the wire.

[0034] Structural stability and aesthetics: The reasonable heat dissipation slot depth design also takes into account the appearance and structural stability of the wires, so that the wires can maintain efficient heat dissipation while also maintaining a good appearance and feel, meeting the user's dual needs for wire aesthetics and practicality.

[0035] In summary, through further optimization of the inner insulation layer thickness, reinforcement layer thickness, and heat dissipation groove depth, this high-performance PVC insulated wire further improves insulation performance, mechanical strength, heat dissipation efficiency, economy, and practicality while maintaining its original excellent performance, meeting a wider range of more demanding power transmission and signal transmission application scenarios.

[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A high-performance polyvinyl chloride insulated wire comprising a conductor and an insulating layer wrapped around the conductor, characterized in that: The insulating layer includes an inner insulating layer, a reinforcement layer and an outer insulating layer from the inside to the outside, and the thickness of the inner insulating layer is less than that of the outer insulating layer; the inner insulating layer and the outer insulating layer are both made of polyvinyl chloride material, and the reinforcement layer is woven with at least one layer of glass fiber; a plurality of heat dissipation grooves are evenly spaced along the circumferential direction on the outer insulating layer.

2. The high-performance polyvinyl chloride insulated wire according to claim 1, characterized in that: The thickness of the inner insulation layer is 1 / 2-2 / 3 of the thickness of the outer insulation layer.

3. The high-performance polyvinyl chloride insulated wire according to claim 1, characterized in that: The overall thickness of the reinforcement layer is 0.5-1 mm.

4. The high-performance polyvinyl chloride insulated wire according to claim 1, characterized in that: The depth of the heat dissipation groove is 1 / 3-1 / 2 of the thickness of the insulation layer.

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