KR20200053217A - Flexible wire and its structure - Google Patents

Abstract

The present invention relates to a flexible wire. The flexible wire comprises: one to five conductors (10) formed in the centermost portion thereof and allowing an electrical current to flow therein; a shielding layer (15) stacked on the outer circumferential surface of each of the conductors (10) to wrap the outer surface of each of the conductors (10) by using a Teflon material or a glass fiber material; an insulating layer (20) coated with an insulator including a low smoke zero halogen (LSZH) material which is flame retardant; a protective layer (30); and an outer layer (40). According to the present invention, a conductor at the center line of a flexible wire can be prevented from being bent or disconnected.

Description

Flexible wire and its structure

The present invention relates to a flexible electric wire and its structure, and more specifically, a shielding layer, an insulating layer and a protective layer, and a protective layer, to protect the inner conductor on the outer circumferential surface of the electric wire used for construction wiring at the construction site. It is composed of aluminum bands with excellent elasticity that bends on the outer surface to interlock with each other, and the outer layer is configured to protect against external shock, sunlight, and extreme temperature differences, reducing construction time and preventing disconnection due to load. It relates to a flexible wire formed so as to have a structure.

In general, the wiring of the building is made at the same time as the construction, and is made by installing steel pipes or plastic pipes in advance where the wires are to be placed and then pouring concrete into the steel pipes or plastic pipes. According to this installation method, the part where the wiring is bent at a right angle uses two fitting pipes to pass two different straight pipes.

The wiring construction process as described above is a pipe connecting step of connecting a steel pipe or a plastic pipe into a joint for pouring concrete, and a pouring step of pouring concrete so that the connected pipe is not damaged and the poured concrete is solidified. After that, it is composed of a wire connection step that connects the part that draws current from the outside by inserting the wire and the part that uses the current inside the building.

However, in the above construction process, there is a hassle of using a joint pipe for each part bent at a right angle in the pipe connection step. In the pouring step, there is a problem that the pipe may be damaged by the load of concrete when the pipe is used as a plastic, and when the pipe is used as a steel pipe, corrosion may occur due to moisture in the concrete. In addition, the wire connection in the wire connection step requires a separate manpower, which increases the labor cost, and the conventional wiring method increases the construction time and construction cost of the building, and causes damage and corrosion of the pipes, so that smooth electric current is transmitted. There is a possibility that problems that are not sustained will occur.

As a prior art related to the above-mentioned electric wire, the construction time is shortened by combining a flexible pipe wound with a band of aluminum material having excellent bending property interlocked with the outside of the electric wire in Korean Patent Publication No. 10-2004-0076027. It is disclosed in relation to a flexible wire capable of preventing disconnection due to load and the manufacturing method thereof, and in the first and second steps while sequentially pulling out an aluminum strip from a winding device in Korean Patent Registration No. 10-0965113. After forming, finally, the flexible tube is continuously formed through a flexible tube forming machine consisting of semi-circular, square and trapezoidal forming grooves, and at the same time, the wire is introduced into the flexible tube and wound sequentially to protect the wires. This prevents errors such as metal bands when forming flexible pipes. It is disclosed about a flexible electric wire manufacturing machine having an effect of improving workability and productivity, and is also made of a metal material having excellent bending property outside a number of electric wires used for construction wiring in Korean Utility Model Registration No. 20-0375691. A flexible tube is manufactured by winding the bands in engagement with each other, and a coating layer for corrosion prevention and waterproofing is formed on the outer circumferential surface of the flexible tube, and the bundle of wires inside the flexible tube is twisted in a spiral to minimize resistance generated during power movement. Formed, the bundle of wires having a core formed by using a common line inside a plurality of wires arranged in a circular shape maintains a circular shape, and further forming a coating by insulator injection of the wire bundle to prevent moisture from penetrating into the wire. A flexible waterproof wire for defense is disclosed.

However, the prior art has a hassle of using a joint pipe for each part that is bent at a right angle, and when the pipe is used as plastic, there is a problem that the pipe may be damaged by the load of concrete, and when the pipe is used as a steel pipe, moisture in the concrete There is a problem that corrosion may occur, and a separate manpower is mobilized to connect the wires, which causes a factor that increases the labor cost, increases the construction time and construction cost of the building, and causes damage and corrosion of the pipe, thereby causing There is a room for a problem in which smooth electric current is not delivered.

The present invention solves the problems of the prior art, prevents bending or disconnection of the conductor in the center line of the flexible wire, and when installing or operating the flexible wire, due to external impact or concrete impact and weight at the construction site, etc. In order to protect the inner conductor, a shielding layer, an insulating layer and a protective layer are formed on the outer circumferential surface of the conductor, and the purpose of the present invention is to provide a flexible wire formed by spirally wrapping a belt of aluminum material resistant to shock and corrosion on the outer circumferential surface of the protective layer. More specifically, the shielding layer and the insulating layer on the outer surface of the conductor formed inside the flexible electric wire manufactured by the flexible electric wire of Korean Patent Registration No. 10-0527360 registered by the applicant of the present invention and registered. And for the purpose of providing a flexible wire and its structure further comprising a protective layer on the outer peripheral surface of the insulating layer Is to do.

As a solution of the flexible wire and its structure according to the object of the present invention, a conductor 10 is formed on the innermost center line of the main body 1, and a shielding layer 15 and an insulating layer on the outer circumferential surface of the conductor 10 ( 20) are formed continuously, the protective layer 30 is formed on the outer peripheral surface of the conductor 10 on which the shielding layer 15 and the insulating layer 20 are formed, and the outer layer on the outer peripheral surface of the protective layer 30 ( 40).

In the center, 1 to 5 conductors 10 through which current flows are arranged inside, and a Teflon material or a glass fiber material is used on the outer circumferential surface of the conductor 10, and the shielding layer 15 has a thickness of 0.05 mm to 0.1 mm. ). The Teflon is a material for heat resistance, durability, insulation and releasability, and the glass fiber is also called glass fiber and is a material having excellent heat resistance and shielding properties. The shielding layer 15 is configured by wrapping the outer surface of each of 1 to 5 conductors 10 with a coating formed of Teflon or glass fiber material.

Each of the 1 to 5 conductors 10 is wrapped with a shielding layer 15 and coated on an outer circumferential surface of the shielding layer 15 with an insulator comprising a flame retardant (low flame zero halogen) material, LSZH. The insulating layer 20 is formed to a thickness of 0.05 mm to 0.1 mm. The low smoke zero halogen (LSZH) material forming the insulating layer 20 is low smokeless and has low smoke and reduces the possibility of suffocation when a fire occurs in the wire, thereby improving stability.

The outer circumferential surfaces of the 1 to 5 conductors 10 each covered with the shielding layer 15 and the insulating layer 20 are formed by combining antistatic fibers on both sides or cross sections of an adhesive tape, or antistatic fibers and carbon fibers Or by combining the same ratio, or by combining the antistatic fiber and the aramid fiber in the same ratio, and composed of a protective layer 30 formed to a thickness of 0.1 mm to 0.5 mm.

In addition, the protective layer 30 additionally constitutes a heat-resistant layer on the outer surface and prevents high-temperature heat or sparks from spreading from the high-temperature heat applied in the event of a fire in the conductor 10 to the outside of the protective layer 30. It is protected from high temperature heat or flame from penetrating the inside of the protective layer 30 from high temperature heat applied in the event of a fire or when a fire occurs outside the main body 1 and is configured by selecting from aluminum particles or mica particles.

On the outer circumferential surface of the protective layer 30, the outer layer 40 is constituted by using an aluminum material or an alloy material, and a curved band having a cross-section is wound in a spiral shape, and the curved band of the curved band is wound ahead. It is configured to interpolate a part of the recessed portion and wind it.

The outer surface of the outer layer 40 can be intuitively displayed for a specific use of the main body 1 by painting the entire color in a specific color. Communication is yellow or green, communication is red, and heat is blue or black. can do. In addition, the outer surface of the outer layer 40 is configured by displaying the entire length of the electric wire in 1m increments or 5m increments or 10m increments so that the entire length of the main body 1 can be intuitively recognized.

According to the flexible wire and its structure according to the present invention, since a conductor, a shielding layer, an insulating layer, and a protective layer are integrally formed inside the outer layer made of aluminum, there is no need for separate wiring when working in the field. Since it is not a method of entering, there is no possibility of damage to the inner conductor, so the reliability of the construction is high, and since there is no separate pre-wiring, it is easy to work, and the straightness of the wiring is improved by improving the sagging phenomenon of the wire, which is a disadvantage of the existing conduit construction. It has the effect of improving the weight, and the outer layer is made of light aluminum or alloy material, so it is easy to handle in the field, and it has a significant reduction in construction cost through shorter installation time than conventional wiring methods. In addition, it is possible to use a flexible wire without using a joint tube to vertically bend the wiring, and the appearance is beautiful, so it can be used as an interior decoration.

In addition, since the LSZH material is used for the insulating layer formed on the outer surface of the conductor, when exposed to a high heat source, it can block fire by not emitting limited smoke and halogen, and the color of each application is applied to the outer surface of the outer layer. Intuitive recognition at the time of work in the field enables quick work, and since the entire length of the wire is displayed at regular intervals, there is an effect of checking the length of the remaining wire when working in the field.

1 is a perspective view of a flexible wire and its structure according to the present invention.
2 is a cross-sectional view of the flexible wire and its structure according to the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, when it is determined that a detailed description of known functions or configurations related to the present invention may unnecessarily obscure the subject matter of the present invention. The detailed description is omitted.

In addition, terms to be described later are terms defined in consideration of functions in the present invention, which may vary according to a user's or operator's intention or practice. Therefore, the definition should be made based on the contents throughout this specification.

1 is a perspective view of a flexible wire and its structure, and FIG. 2 is a cross-sectional view of the flexible wire and its structure. Referring to FIGS. 1 and 2 in detail,

The main body 1 of the present inventor is a shielding layer 15 and an insulating layer 20 surrounding the conductor 10 and the outer circumferential surface of the conductor 10 in the outermost direction from the center, and the shielding layer 15 and the insulating layer A protective layer 30 is formed on the outer circumferential surfaces of the conductors 10 surrounded by 20, respectively, and the outer layer 40 is formed on the outer circumferential surface of the protective layer 30.

The outer layer 40 is formed by wrapping a metal band to prevent bending or disconnection of the inner conductor 10 against external impact or load.

The conductors 10 composed of 1 to 5 are formed of copper (Cu) or aluminum (Al) or the like, and a current flows therein to be covered with the shielding layer 15, respectively.

The shielding layer 15 is made of a Teflon material or a glass fiber material and has a thickness of 0.05 mm to 0.1 mm.

The Teflon refers to a fluorine resin developed and sold by DuPont in the United States. The fluororesin is excellent in heat resistance and electrical insulation, and is widely used in mechanical and electrical fields such as automobile parts. (PTFE, Polytetrafluoroenthylene). Teflon is chemically resistant to most chemicals and can maintain its physical form over a wide temperature range from -270 ° C to 250 ° C. In addition, Teflon also features insulation stability that prevents electricity or heat transfer, non-adhesion that other materials do not adhere well, and low coefficient of friction.

The glass fiber is also called glass fiber and is a material made of numerous ultrafine fibers of glass, which is strong against heat and chemicals and has high elasticity. Therefore, the conductor 10 can be protected by using the heat resistance, chemical resistance, and elasticity of the fiber.

The insulating layer 20 includes a low smoke zero halogen (LSZH) material, and is configured to surround the outer circumferential surface of the shield layer 15 surrounding the conductor 10 with a thickness of 0.05 mm to 0.1 mm.

The flame retardant (low flame zero halogen) material included in the insulating layer 20 is a material classification generally used for cable jackets in the wire and cable industries, and LSZH cable jackets have been exposed to high heat sources. It is composed of thermoplastic or thermosetting compounds that do not emit limited smoke and halogens. In other words, it is closely related to Flame Retardant.

LSZH incorporates sufficient inorganic filler, aluminum trihydrate (ALTH), into a suitable thermoplastic matrix to suppress fire and cause char formation to reduce the release of toxic carbon gas and smoke and carbon particles. And to achieve flame retardancy, aluminum trihydrate (ALTH) is used as the inorganic filler. As shown in the reaction scheme below, the aluminum trihydrate (ALTH) causes an endothermic chemical reaction when a fire occurs.

2Al (OH) ₃ → Al₂O₃ + 3H₂O (180 ° C)

When the compound reaches a certain temperature, it absorbs thermal energy and releases steam. It is important that the decomposition of the polymer used to transport the filler decomposes at almost the same temperature. Vapors interfere with the combustion of the evolved gas, protect residual material and help form a coal seam that traps particulates.

LSZH significantly reduces the amount of toxic and corrosive gases released during combustion. In the event of a fire, the amount and density of smoke can be reduced, making it easier for evacuees to move, as well as improving the safety of firefighting operations. Typically used in poorly ventilated structures or devices, such as aircraft, rail vehicles, tanks, subsea and offshore structures, submarines or ships.

The protective layer 30 is formed by combining antistatic fibers on both sides or end surfaces of the adhesive tape, or by combining antistatic fibers and carbon fibers in the same ratio, or combining antistatic fibers and aramid fibers in the same ratio. It is selected from the configuration, and is constructed by surrounding the outer circumferential surface of the conductor 10 composed of 1 to 5 each covered with the shielding layer 15 and the insulating layer 20 with a thickness of 0.1 mm to 0.5 mm. do.

Additionally, the protective layer 30 may further constitute a heat-resistant layer on the outer surface. To prevent the spread of high temperature heat and flame from the high temperature heat applied when a fire occurs in the conductor 10, the shielding layer 15 and the insulating layer 20 to the outside of the protective layer 30, or the protective layer ( 30) It protects the conductor 10 from the high temperature heat applied when a fire occurs outside, and is composed of aluminum particles or mica particles.

The protective layer 30 uses antistatic fibers to prevent static electricity or sparks, and the antistatic fibers quickly dissipate static electricity generated as fibers treated with a surface treatment agent having a hydrophilic group so that static electricity does not occur. will be. The principle of this is divided into a method of imparting antistaticity and a method of imparting conductivity. As a method of imparting antistaticity, a method of hydrophilizing a fabric with a hydrophilic polymer or the like and copolymerizing or graft polymerizing a hydrophilic monomer to obtain a polymer There are a method of hydrating and a method of incorporating a hydrophilic material or a polymer. Further, in order to impart conductivity, there are methods of mixing and interweaving conductive fibers such as metal fibers, metal plated fibers, and carbon mixed fibers.

The antistatic fiber is bonded to both sides or end surfaces of the adhesive tape to form the protective layer 30, or the antistatic fiber and carbon fiber are combined in the same ratio, or the antistatic fiber and the aramid fiber are in the same ratio. Combined to form a protective layer 30.

The carbon fiber and the aramid fiber have high elasticity and high strength to prevent bending, disconnection, and synthesis.

Carbon fiber is a structure in which a hexagonal ring of carbon is continuously formed to form a layered lattice, and has a metallic luster and has a black or gray color. It has excellent heat resistance and impact resistance, is resistant to chemicals, and has a large resistance to pests. The aramid fiber is a polymer having a main chain structure of an aliphatic or aromatic amide, and is characterized by having excellent friction resistance, heat resistance, elasticity, abrasion resistance, low friction coefficient, high impact strength and tensile strength.

The outer layer 40 is made of an aluminum material or an alloy material, and is configured to have elasticity and flexibility to give the outer layer 40 the same angle and flexibility as the bending angle of the inner conductor 10. That is, the metal strip forming the outer layer 40 is processed to form a curved section by using a processing means such as a press or a jig to form a curved band, and the protective curved band 30 is spirally formed into the processed curved band. It is wound on the outer circumferential surface of.

At this time, in the shape of the cross-section of the outer layer 40, the curved portion of the curved band in which the upper surface is convex is preceded, and the lower surface of the curved band is wound by partially interpolating the concave-shaped recessed portion, so that it is bent and bent by the curved portion and the recessed portion. It is possible to form such as shrinking. In the expansion, the ends of each of the recessed portion and the curved portion are engaged with each other, so that a gap does not occur, so that the curved band always surrounds the outside.

A specific color is applied to the outer surface of the outer layer 40 by using a whole color, the wire for communication is coated in yellow or green, the wire for fire fighting is coated in red, and the wire for heating is coated in blue or black.

If the colors are different according to the purpose of the wires as described above, a number of workers can intuitively recognize the purpose of the wires in the field, so that they can perform the work quickly and accurately. Can proceed.

In addition, on the outer surface of the outer layer 40, the length of the entire wire is displayed at intervals of 5 m to 10 m, and since the entire length of the corresponding wire is displayed, it is possible to perform a smooth operation while checking the length of the remaining wire in the field.

In the present invention, the above embodiment is only an example, and the present invention is not limited thereto. Anything that has substantially the same configuration and the same working effect as the technical idea described in the claims of the present invention is included in the technical scope of the present invention.

1. Main body
10. Conductor
15. Shielding layer
20. Insulation layer
30. Protective layer
40. Outer layer

Claims (5)

In the electric wire through which the current used for wiring flows,
In the center, 1 to 5 conductors 10 through which current flows inside;
A shielding layer 15 stacked on the outer circumferential surface of each conductor 10 to cover the outer surface of the conductor 10 using a Teflon material or a glass fiber material;
An insulating layer 20 coated with an insulator including a low smoke zero halogen (LSZH) material that is flame retardant;
On the outer circumferential surfaces of the 1 to 5 conductors 10 respectively covered with the shielding layer 15 and the insulating layer 20, a protective layer 30, which is a protective coating composed of antistatic fibers on both sides or one side of the adhesive tape, and ;
The outer circumferential surface of the protective layer 30 is made of a main body 1 including an outer layer 40 that is wrapped with a curved band made of aluminum, coated with a specific color indicating the purpose, and the entire length of the electric wire is displayed at regular intervals. Flexible wire and its structure, characterized in that. The method according to claim 1,
The shielding layer 15 is formed by selecting any one of Teflon material or glass fiber material, the insulating layer 20 is formed of a low smoke zero halogen (LSZH) material, and the shielding layer 15 The insulating layer 20 has a thickness of 0.05 mm to 0.1 mm, respectively, and the conductor 10 and the shield layer 15 surround the outer circumferential surfaces of the flexible electric wire and its structure. The method according to claim 1,
The protective layer 30 is formed by combining antistatic fibers on both sides or end surfaces of the adhesive tape, or by combining antistatic fibers and carbon fibers in the same ratio, or combining antistatic fibers and aramid fibers in the same ratio. By selecting any one of them, and surrounding the outer peripheral surfaces of 1 to 5 conductors 10 each covered with the shielding layer 15 and the insulating layer 20 with a thickness of 0.1 mm to 0.5 mm. Flexible electric wire and its structure, characterized in that to configure. The method according to claim 1,
The outer layer 40 is used to select either an aluminum material or an alloy material, and the outer layer 40 is constituted by spirally winding a curved band having a cross-section, and the curved portion of the curved band is wound beforehand. It is configured to interpolate and wind a part of the recessed portion of the curved strip, and the color applied to the entire outer surface of the outer layer 40 is selected by applying one of yellow or green for communication, and red for fire fighting For heat transfer, it is selected and applied in one of blue or black colors, and the entire length of the electric wire, which is the main body 1, is displayed on the outer surface of the outer layer 40 at intervals of 5 m to 10 m. Flexible wire and its structure. The method according to claim 1 or 3,
The protective layer 30 further comprises a heat-resistant layer on the outer surface, and protects the interior or exterior of the conductor 10 from the high temperature heat applied when a fire occurs, based on the protective layer 30, aluminum A flexible electric wire and its structure, characterized in that any one of particles or mica particles is selected and constructed.

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