A fully shielded composite insulated tubular busbar

Abstract

The utility model discloses a kind of full shielding composite insulation tubular bus, it is related to tubular bus field, including conductor;The surface of the conductor is fixedly installed with insulating layer, the surface of the insulating layer is fixedly installed with shielding layer, the surface of the shielding layer is fixedly installed with outer layer.The utility model has excellent insulation performance by setting insulating layer, can effectively prevent the occurrence of electric leakage and short-circuit fault, improve the security of power transmission, the synergies of mica tape, ethylene-propylene rubber and insulating protective paint, the high-temperature resistance, aging resistance and waterproof, moisture-proof performance of insulating layer are enhanced, the service life of bus is prolonged, shielding inner layer and double shielding design of shielding outer layer can effectively shield the electric field generated by conductor and the electromagnetic interference of outside, improve the anti-interference ability of power system, the connection of ground wire ensures that the potential of shielding layer is zero, further enhances shielding effect.

Description

Technical Field

[0001] This utility model relates to the field of tubular busbars, specifically to a fully shielded composite insulated tubular busbar. Background Technology

[0002] In power systems, busbars are key equipment for collecting and distributing electrical energy, and their performance directly affects the stability and security of power transmission. Traditional busbars have certain limitations in terms of insulation performance, shielding effect, and current carrying capacity.

[0003] For example, the insulation structure of ordinary busbars is easily affected by environmental factors such as humidity and dust during long-term operation, leading to a decline in insulation performance and subsequently causing faults such as leakage and short circuits. Meanwhile, with the continuous increase in power system capacity, the requirements for the current-carrying capacity of busbars are also increasing. Existing busbar structures are unable to meet the ever-growing power demand. Furthermore, electromagnetic interference around busbars is becoming increasingly prominent. If shielding measures are inadequate, it can adversely affect nearby electronic equipment, reducing the overall operational reliability of the power system. Moreover, traditional busbars also have shortcomings in terms of ease of installation and maintenance, as well as mechanical stability, such as unstable connections during installation and difficulty in flexibly adjusting the support structure. All of these pose challenges to the efficient operation and maintenance of power systems. Therefore, developing a new type of busbar with good insulation performance, efficient shielding, high current-carrying capacity, and a practical mechanical structure is of significant practical importance. Utility Model Content

[0004] The purpose of this invention is to provide a fully shielded composite insulated tubular busbar to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] A fully shielded composite insulated tubular busbar includes a conductor; an insulation layer is fixedly installed on the surface of the conductor, a shielding layer is fixedly installed on the surface of the insulation layer, and an outer layer is fixedly installed on the surface of the shielding layer.

[0007] Preferably, the insulating layer includes an inner insulating layer, a middle insulating layer, and an outer insulating layer. The inner insulating layer is specifically a mica tape wrapping layer with high temperature resistance and high insulation performance, which is tightly wrapped around the outside of the conductor. The middle insulating layer is specifically an ethylene propylene rubber insulating layer, which is uniformly covered on the outside of the inner insulating layer. The outer insulating layer is an insulating protective paint layer, which is uniformly coated on the surface of the middle insulating layer.

[0008] Preferably, the shielding layer includes an inner shielding layer and an outer shielding layer. The inner shielding layer is made of copper strip or copper wire wrapped around the outside of the insulation layer, and the wrapping direction is opposite to the wrapping direction of the insulation layer. The outer shielding layer is made of galvanized steel wire woven around the outside of the insulation layer. The inner shielding layer and the outer shielding layer are connected by a grounding wire.

[0009] Preferably, the outer layer includes a protective layer, which is made of polyvinyl chloride or cross-linked polyethylene and extruded by an extruder. The protective layer is uniformly covered on the outside of the shielding layer, and the surface of the protective layer is provided with anti-slip grooves.

[0010] Preferably, the wrapping pitch of the insulating inner layer is fixed, the number of wrapping layers is two to three, and the tension of the mica tape remains uniform during the wrapping process.

[0011] Preferably, the tension of the copper strip or copper wire is uniform during the wrapping of the inner shielding layer, without any loosening or breakage.

[0012] Preferably, the outer shielding layer is woven with a fixed weaving density and weaving angle to ensure shielding effectiveness and mechanical strength.

[0013] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0014] 1. This utility model provides a fully shielded composite insulated tubular busbar. By setting an insulation layer, the busbar has excellent insulation performance, which can effectively prevent leakage and short circuit faults and improve the safety of power transmission. The synergistic effect of mica tape, ethylene propylene rubber and insulating protective paint enhances the high temperature resistance, aging resistance and waterproof and moisture-proof performance of the insulation layer, extending the service life of the busbar. At the same time, the double shielding design of the inner and outer shielding layers can effectively shield the electric field generated by the conductor and external electromagnetic interference, improve the anti-interference capability of the power system, and the connection of the grounding wire ensures that the potential of the shielding layer is zero, further enhancing the shielding effect.

[0015] 2. This utility model provides a fully shielded composite insulated tubular busbar. By using polyvinyl chloride or cross-linked polyethylene material for the protective layer, it has good mechanical strength and environmental corrosion resistance, which can effectively protect the internal structure, extend the service life of the busbar, and the anti-slip groove design facilitates installation and maintenance, thus improving work efficiency. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings.

[0017] Fig. 1 This is a schematic diagram of the structure of this utility model;

[0018] Fig. 2 This is a cross-sectional view of the conductor, insulating layer, and shielding layer structure of this utility model;

[0019] Fig. 3 This is a schematic diagram of the structure of the inner and outer shielding layers of this utility model;

[0020] Fig. 4 This is a schematic diagram of the protective layer and anti-slip groove of this utility model;

[0021] Fig. 5 This is a schematic diagram of the structure of the insulating inner layer, insulating middle layer and insulating outer layer of this utility model;

[0022] Fig. 6 This is a schematic diagram of the conductor structure of this utility model;

[0023] In the diagram: 1. Conductor; 2. Insulating layer; 3. Shielding layer; 4. Outer layer; 201. Inner insulating layer; 202. Middle insulating layer; 203. Outer insulating layer; 301. Inner shielding layer; 302. Outer shielding layer; 401. Protective layer; 402. Anti-slip groove. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to embodiments:

[0025] Example 1

[0026] like Figs. 1-6 As shown, this utility model provides a fully shielded composite insulated tubular busbar, including a conductor 1; an insulation layer 2 is fixedly installed on the surface of the conductor 1, a shielding layer 3 is fixedly installed on the surface of the insulation layer 2, and an outer layer 4 is fixedly installed on the surface of the shielding layer 3.

[0027] Specifically, insulation layer 2 includes an inner insulating layer 201, an intermediate insulating layer 202, and an outer insulating layer 203. The inner insulating layer 201 is a high-temperature resistant, high-insulation mica tape wrapping layer, tightly wound around the outside of conductor 1. The intermediate insulating layer 202 is an ethylene propylene rubber insulating layer, uniformly covering the outside of the inner insulating layer 201. The outer insulating layer 203 is an insulating protective varnish layer, uniformly coated on the surface of the intermediate insulating layer 202. Shielding layer 3 includes an inner shielding layer 301 and an outer shielding layer 302. The inner shielding layer 301 is wrapped around the outside of insulation layer 2 with copper tape or wire, with the wrapping direction opposite to that of insulation layer 2. The outer shielding layer 303 is woven with galvanized steel wire around the outside of insulation layer 2. The inner shielding layer 301 and the outer shielding layer 302 are connected by a grounding wire. The wrapping pitch of the inner insulating layer 201 is fixed, and the number of wrapping layers is two to three. Furthermore, the tension of the mica tape remains uniform during the wrapping process, and the tension of the copper strip or wire is uniform during the wrapping of the inner shielding layer 301, without any loosening or breakage. The braiding density and braiding angle of the outer shielding layer 302 are fixed during braiding to ensure the shielding effect and mechanical strength. By setting the insulation layer 2, the busbar has excellent insulation performance, which can effectively prevent leakage and short circuit faults and improve the safety of power transmission. The synergistic effect of mica tape, ethylene propylene rubber and insulating protective paint enhances the high temperature resistance, aging resistance and waterproof and moisture-proof performance of the insulation layer, extending the service life of the busbar. At the same time, the double shielding design of the inner shielding layer 301 and the outer shielding layer 302 can effectively shield the electric field generated by the conductor 1 and external electromagnetic interference, improve the anti-interference capability of the power system, and the connection of the grounding wire ensures that the potential of the shielding layer 3 is zero, further enhancing the shielding effect and ensuring the stability of power transmission.

[0028] Specifically, the outer layer 4 includes a protective layer 401, which is made of polyvinyl chloride or cross-linked polyethylene and is formed by extrusion. The protective layer 401 is uniformly covered on the outside of the shielding layer 3, and the surface of the protective layer 401 is provided with anti-slip grooves 402.

[0029] Example 2

[0030] like Figs. 1-6 As shown, based on Embodiment 1, this utility model provides a technical solution: a fully shielded composite insulated tubular busbar, including a conductor 1; an insulation layer 2 is fixedly installed on the surface of the conductor 1, a shielding layer 3 is fixedly installed on the surface of the insulation layer 2, and an outer layer 4 is fixedly installed on the surface of the shielding layer 3.

[0031] Specifically, insulation layer 2 includes an inner insulating layer 201, an intermediate insulating layer 202, and an outer insulating layer 203. The inner insulating layer 201 is a high-temperature resistant, high-insulation mica tape wrapping layer, tightly wound around the outside of conductor 1. The intermediate insulating layer 202 is an ethylene propylene rubber insulating layer, uniformly covering the outside of the inner insulating layer 201. The outer insulating layer 203 is an insulating protective varnish layer, uniformly coated on the surface of the intermediate insulating layer 202. Shielding layer 3 includes an inner shielding layer 301 and an outer shielding layer 302. The inner shielding layer 301 is wrapped around the outside of insulation layer 2 with copper tape or wire, with the wrapping direction opposite to that of insulation layer 2. The outer shielding layer 303 is woven with galvanized steel wire around the outside of insulation layer 2. The inner shielding layer 301 and the outer shielding layer 302 are connected by a grounding wire. The wrapping pitch of the inner insulating layer 201 is fixed, and the number of wrapping layers is two to three. Furthermore, the tension of the mica tape remains uniform during the wrapping process, and the tension of the copper strip or wire is uniform during the wrapping of the inner shielding layer 301, without any loosening or breakage. The braiding density and braiding angle of the outer shielding layer 302 are fixed during braiding to ensure the shielding effect and mechanical strength. By setting the insulation layer 2, the busbar has excellent insulation performance, which can effectively prevent leakage and short circuit faults and improve the safety of power transmission. The synergistic effect of mica tape, ethylene propylene rubber and insulating protective paint enhances the high temperature resistance, aging resistance and waterproof and moisture-proof performance of the insulation layer, extending the service life of the busbar. At the same time, the double shielding design of the inner shielding layer 301 and the outer shielding layer 302 can effectively shield the electric field generated by the conductor 1 and external electromagnetic interference, improve the anti-interference capability of the power system, and the connection of the grounding wire ensures that the potential of the shielding layer 3 is zero, further enhancing the shielding effect and ensuring the stability of power transmission.

[0032] Specifically, the outer layer 4 includes a protective layer 401. The protective layer 401 is made of polyvinyl chloride or cross-linked polyethylene and is extruded by an extruder. The protective layer 401 is uniformly covered on the outside of the shielding layer 3. The surface of the protective layer 401 is provided with anti-slip grooves 402. By making the protective layer 401 with polyvinyl chloride or cross-linked polyethylene, it has good mechanical strength and environmental corrosion resistance, which can effectively protect the internal structure and extend the service life of the busbar. The design of the anti-slip grooves 402 facilitates installation and maintenance and improves work efficiency.

[0033] The working principle of this fully shielded composite insulated tubular busbar will be explained in detail below.

[0034] like Figs. 1-6As shown, by setting insulation layer 2, the busbar has excellent insulation performance, which can effectively prevent leakage and short circuit faults and improve the safety of power transmission. The synergistic effect of mica tape, ethylene propylene rubber and insulating protective paint enhances the high temperature resistance, aging resistance and waterproof and moisture-proof performance of the insulation layer, extending the service life of the busbar. At the same time, the double shielding design of the inner shielding layer 301 and the outer shielding layer 302 can effectively shield the electric field generated by conductor 1 and external electromagnetic interference, improving the anti-interference capability of the power system. The connection of the grounding wire ensures that the potential of the shielding layer 3 is zero, further enhancing the shielding effect and ensuring the stability of power transmission. Furthermore, the protective layer 401 is made of polyvinyl chloride or cross-linked polyethylene material, which has good mechanical strength and environmental corrosion resistance, effectively protecting the internal structure and extending the service life of the busbar. The design of the anti-slip groove 402 facilitates installation and maintenance and improves work efficiency.

[0035] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A fully shielded composite insulated tubular busbar, comprising a conductor (1); characterized in that: An insulating layer (2) is fixedly installed on the surface of the conductor (1), a shielding layer (3) is fixedly installed on the surface of the insulating layer (2), and an outer layer (4) is fixedly installed on the surface of the shielding layer (3).

2. The fully shielded composite insulated tubular busbar according to claim 1, characterized in that: The insulating layer (2) includes an inner insulating layer (201), an intermediate insulating layer (202), and an outer insulating layer (203). The inner insulating layer (201) is specifically a mica tape wrapping layer with high temperature resistance and high insulation performance. The inner insulating layer (201) is tightly wrapped around the outside of the conductor (1). The intermediate insulating layer (202) is specifically an ethylene propylene rubber insulating layer. The intermediate insulating layer (202) is uniformly covered on the outside of the inner insulating layer (201). The outer insulating layer (203) is an insulating protective paint layer. The outer insulating layer (203) is uniformly coated on the surface of the intermediate insulating layer (202).

3. The fully shielded composite insulated tubular busbar according to claim 1, characterized in that: The shielding layer (3) includes an inner shielding layer (301) and an outer shielding layer (302). The inner shielding layer (301) is wrapped with copper strip or copper wire around the outside of the insulation layer (2), and the wrapping direction is opposite to the wrapping direction of the insulation layer (2). The outer shielding layer (302) is woven with galvanized steel wire around the outside of the insulation layer (2). The inner shielding layer (301) and the outer shielding layer (302) are connected by a grounding wire.

4. The fully shielded composite insulated tubular busbar according to claim 1, characterized in that: The outer layer (4) includes a protective layer (401), which is made of polyvinyl chloride or cross-linked polyethylene material and is extruded by an extruder. The protective layer (401) is uniformly covered on the outside of the shielding layer (3), and the surface of the protective layer (401) is provided with anti-slip grooves (402).

5. A fully shielded composite insulated tubular busbar according to claim 2, characterized in that: The inner insulating layer (201) has a fixed wrapping pitch, two to three wrapping layers, and the tension of the mica tape remains uniform during the wrapping process.

6. The fully shielded composite insulated tubular busbar according to claim 3, characterized in that: During the wrapping process of the inner shielding layer (301), the tension of the copper strip or copper wire remains uniform, and the finished wrapping product is free from loosening or breakage defects.

7. A fully shielded composite insulated tubular busbar according to claim 3, characterized in that: The outer shielding layer (302) is woven with a fixed weaving density and weaving angle to ensure shielding effect and mechanical strength.

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