Paper-covered conductor with separator paper

Abstract

The utility model relates to paper package wire technical field, especially a paper package wire with partition paper, including paper package wire main part, the inside of paper package wire main part all is provided with oxygen -free copper pole assembly, the middle position department of paper package wire main part inside installs partition paper main part, paper package wire main part includes inner lining, the outer wall of inner lining is provided with first insulating layer, and the outer wall of first insulating layer is provided with second insulating layer, the outer wall of second insulating layer is provided with reinforcing layer. The utility model first through the material of second insulating layer is polyimide film, and through the material of reinforcing layer is cable hemp to come through the design of inner lining, first insulating layer, second insulating layer and reinforcing layer to make paper package wire main part insulation and anticorrosive effect better.

Description

Technical Field

[0001] This utility model relates to the field of paper-insulated wire technology, and in particular to a paper-insulated wire with a separator paper. Background Technology

[0002] Paper-insulated conductors refer to wires whose insulation layer is wrapped with cable paper. They are typically made from oxygen-free copper rods or electrical round aluminum rods, which are extruded or drawn using a die and then annealed. Two or more layers of insulating paper (such as telephone paper, cable paper, high-voltage cable paper, inter-turn insulation paper, etc.) are then wrapped around the copper (aluminum) conductor to form a winding wire. Paper-insulated conductors are mainly used in the windings of oil-immersed transformers, reactors, and other electrical devices. Depending on different mechanical strength requirements, paper-insulated conductors with separator paper are a special type of conductor, mainly used to improve the insulation performance of the conductor and meet the needs of ultra-high voltage and large-capacity equipment. This type of conductor, by adding separator paper between the conductor bodies, significantly improves the overall insulation performance, making it particularly suitable for ultra-high voltage and large-capacity transformers.

[0003] Currently, most paper-insulated wires with separators on the market do not have good insulation and corrosion resistance after long-term use, which affects their service life. At the same time, existing paper-insulated wires do not have good heat resistance and deformation resistance, which affects their service life. Therefore, there is a need for paper-insulated wires with separators to meet people's needs. Utility Model Content

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0005] Given that most paper-insulated wires with separators on the market do not have good insulation and corrosion resistance during long-term use, thus affecting their service life, and that existing paper-insulated wires do not have good heat resistance and deformation resistance, thus affecting their service life, there is a need for a paper-insulated wire with separators to meet people's needs.

[0006] Therefore, the purpose of this invention is to provide a paper-wrapped wire with a separator.

[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a paper-wrapped wire with a separator paper, comprising a paper-wrapped wire body, wherein an oxygen-free copper rod assembly is provided inside the paper-wrapped wire body, and a separator paper body is installed at the middle position inside the paper-wrapped wire body.

[0008] As a preferred embodiment of the paper-insulated wire with separator paper of this utility model, the paper-insulated wire body includes an inner lining layer, the outer wall of the inner lining layer is provided with a first insulating layer, the outer wall of the first insulating layer is provided with a second insulating layer, and the outer wall of the second insulating layer is provided with a reinforcing layer.

[0009] By adopting the above technical solution, this solution improves the insulation effect of the paper-insulated conductor body through the design of the first and second insulation layers.

[0010] As a preferred embodiment of the paper-wrapped wire with separator paper of this utility model, the inner lining layer is made of polyvinyl chloride rubber.

[0011] By adopting the above technical solution, this solution utilizes the high strength and high elasticity of the polyvinyl chloride rubber layer, thereby extending the service life of the paper-insulated conductor body.

[0012] As a preferred embodiment of the paper-insulated wire with separator paper of this utility model, the first insulating layer is made of aramid fiber.

[0013] By adopting the above technical solution, and utilizing the high strength, high temperature resistance, flame retardancy, and corrosion resistance of aramid fiber, the service life of the paper-insulated conductor can be extended.

[0014] In a preferred embodiment of the paper-insulated wire with separator paper according to this utility model, the second insulating layer is made of polyimide film.

[0015] By adopting the above technical solution, the excellent mechanical properties, flexibility, thermal stability, electrical insulation, and chemical corrosion resistance of polyimide film can extend the service life of the paper-insulated conductor.

[0016] As a preferred embodiment of the paper-insulated wire with separator paper of this utility model, the reinforcing layer is made of cable hemp and the thickness of the reinforcing layer is 0.2-0.5mm.

[0017] By adopting the above technical solution and using cable hemp as the material for the reinforcing layer, the physical properties and durability of the cable can be enhanced.

[0018] As a preferred embodiment of the paper-wrapped wire with separator paper of this utility model, the oxygen-free copper rod assembly includes an oxygen-free copper rod body, which is disposed inside the inner liner layer, and an outer sleeve body is installed on the outer wall of the oxygen-free copper rod body.

[0019] By adopting the above technical solution and through the design of the outer casing, the shielding and heat resistance of the oxygen-free copper rod body are improved.

[0020] As a preferred embodiment of the paper-wrapped wire with separator paper of this utility model, the outer jacket body includes a shielding layer, a reinforcing layer is provided at the bottom end of the shielding layer, and a heat-resistant layer is provided at the bottom end of the reinforcing layer.

[0021] By adopting the above technical solution and designing the shielding layer, the shielding effect of the outer shell body can be improved.

[0022] The paper-wrapped wire with separator paper of this utility model has the following beneficial effects: This invention firstly uses a polyvinyl chloride rubber layer as the inner lining layer, an aramid fiber layer as the first insulation layer, a polyimide film as the second insulation layer, and cable hemp as the reinforcing layer. Through the design of the inner lining layer, the first insulation layer, the second insulation layer, and the reinforcing layer, the paper-insulated conductor body achieves better insulation and corrosion protection.

[0023] This invention firstly utilizes the design of a shielding layer, a reinforcing layer, and a heat-resistant layer. The shielding layer enhances the shielding effect of the oxygen-free copper rod assembly, while the reinforcing layer increases its strength, and the heat-resistant layer improves its high-temperature resistance. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them: Figure 1 This is a schematic diagram of the front view structure of a paper-wrapped wire with separator paper; Figure 2 A paper-wrapped wire with separator paper Figure 1 Enlarged structural diagram at point A in the middle; Figure 3 This is a cross-sectional view of a paper-wrapped wire with separator paper. Figure 4 A schematic diagram of the first insulation layer structure of a paper-insulated wire with separator paper; Figure 5 This is a schematic diagram of a reinforcing layer structure for a paper-wrapped wire with separator paper. Figure 6 A schematic diagram of the main structure of an oxygen-free copper rod with a separator paper for a paper-wrapped wire; Figure 7 This is a schematic diagram of the internal structure of a paper-wrapped wire with separator paper.

[0025] The attached diagram lists the components represented by each number as follows: 1. Paper-insulated conductor body; 101. Inner liner layer; 102. First insulation layer; 103. Second insulation layer; 104. Reinforcing layer; 2. Oxygen-free copper rod assembly; 201. Oxygen-free copper rod body; 202. Outer jacket body; 2021. Shielding layer; 2022. Reinforcing layer; 2023. Heat-resistant layer; 3. Separator paper body. Detailed Implementation

[0026] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0027] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0029] Example 1: Refer to Figures 1-7 This is the first embodiment of the present utility model. This embodiment provides a paper-insulated wire with separator paper, which can solve the problem that most paper-insulated wires with separator paper on the market do not have good insulation and corrosion resistance when used for a long time, thus affecting the service life of the paper-insulated wire. It includes a paper-insulated wire body 1, an oxygen-free copper rod assembly 2 is provided inside the paper-insulated wire body 1, and a separator paper body 3 is installed in the middle position inside the paper-insulated wire body 1.

[0030] Combination Figure 1-5 In an embodiment of this utility model, the paper-insulated wire body 1 includes an inner liner 101, a first insulating layer 102 is provided on the outer wall of the inner liner 101, a second insulating layer 103 is provided on the outer wall of the first insulating layer 102, and a reinforcing layer 104 is provided on the outer wall of the second insulating layer 103. Through the design of the first insulating layer 102 and the second insulating layer 103, the insulation effect of the paper-insulated wire body 1 is improved.

[0031] Combination Figure 1-5 In the embodiments of this utility model, the inner lining layer 101 is made of polyvinyl chloride rubber, the first insulating layer 102 is made of aramid fiber, the second insulating layer 103 is made of polyimide film, and the reinforcing layer 104 is made of cable hemp. The thickness of the reinforcing layer 104 is 0.2-0.5mm. The polyvinyl chloride rubber layer has high strength and high elasticity, thereby extending the service life of the paper-insulated conductor body 1.

[0032] The specific working principle is as follows: First, the inner lining layer 101 is made of polyvinyl chloride rubber, the first insulation layer 102 is made of aramid fiber, the second insulation layer 103 is made of polyimide film, and the reinforcing layer 104 is made of cable hemp. Through the design of the inner lining layer 101, the first insulation layer 102, the second insulation layer 103 and the reinforcing layer 104, the insulation and corrosion protection of the paper-insulated conductor body 1 are improved.

[0033] Example 2: Refer to Figures 1-7 This is the first embodiment of the present invention. This embodiment provides a paper-wrapped wire with a separator paper, which can solve the problem that existing paper-wrapped wires do not have good heat resistance and deformation resistance, thus affecting the service life of paper-wrapped wires. Therefore, there is a need for a paper-wrapped wire with a separator paper to meet people's needs. The oxygen-free copper rod assembly 2 includes an oxygen-free copper rod body 201, which is disposed inside the inner liner 101. An outer body 202 is installed on the outer wall of the oxygen-free copper rod body 201. The outer body 202 includes a shielding layer 2021. A reinforcing layer 2022 is provided at the bottom of the shielding layer 2021, and a heat-resistant layer 2023 is provided at the bottom of the reinforcing layer 2022. Through the design of the shielding layer 2021, the shielding effect of the outer body 202 is improved.

[0034] The specific working principle is as follows: First, through the design of shielding layer 2021, reinforcement layer 2022 and heat-resistant layer 2023, the shielding effect of oxygen-free copper rod assembly 2 is improved through shielding layer 2021, the strength of oxygen-free copper rod assembly 2 is increased through the design of reinforcement layer 2022, and the high temperature resistance of oxygen-free copper rod assembly 2 is improved through the design of heat-resistant layer 2023.

[0035] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A paper-insulated wire with separator paper, characterized in that: include, Paper-wrapped wire body (1), the interior of the paper-wrapped wire body (1) is provided with oxygen-free copper rod assembly (2), and a separator paper body (3) is installed in the middle position inside the paper-wrapped wire body (1). The paper-insulated conductor body (1) includes an inner lining layer (101), the outer wall of the inner lining layer (101) is provided with a first insulating layer (102), the outer wall of the first insulating layer (102) is provided with a second insulating layer (103), and the outer wall of the second insulating layer (103) is provided with a reinforcing layer (104).

2. The paper-insulated wire with separator paper as described in claim 1, characterized in that: The inner lining layer (101) is made of polyvinyl chloride rubber.

3. The paper-wrapped wire with separator paper as described in claim 1, characterized in that: The first insulating layer (102) is made of aramid fiber.

4. A paper-insulated wire with separator paper as described in claim 1, characterized in that: The second insulating layer (103) is made of polyimide film.

5. A paper-insulated wire with separator paper as described in claim 1, characterized in that: The reinforcing layer (104) is made of cable hemp, and the thickness of the reinforcing layer (104) is 0.2-0.5mm.

6. A paper-insulated wire with separator paper as described in claim 1, characterized in that: The oxygen-free copper rod assembly (2) includes an oxygen-free copper rod body (201), which is disposed inside the inner liner (101), and an outer sleeve body (202) is installed on the outer wall of the oxygen-free copper rod body (201).

7. A paper-insulated wire with separator paper as described in claim 6, characterized in that: The outer body (202) includes a shielding layer (2021), a reinforcing layer (2022) is provided at the bottom end of the shielding layer (2021), and a heat-resistant layer (2023) is provided at the bottom end of the reinforcing layer (2022).

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