KR101708913B1 - Insulation cord for easy construction and manufacturing method - Google Patents

Abstract

Disclosed are an insulation wire easy to install and a manufacturing method thereof. The insulation wire easy to install comprises: a conductor part including a first conductor unit and a second conductor unit made of one or more conductive metals or one or more conductive metallic alloys; an insulation part including a first insulation unit and a second insulation unit which are made of one or more insulators and sheathe the first conductor unit and the second conductor unit to enclose the first conductor unit and the second conductor unit; and a sheath part to enclose the insulation part. The sheath part comprises: a first sheath unit of a circular or a polygonal shape enclosing the first insulation unit; a second sheath unit of a circular or a polygonal shape enclosing the second insulation unit; and a connection unit separating the first sheath unit and the second sheath unit, wherein upper surfaces of both ends thereof are mounted on lower ends of the first and the second sheath unit to connect the first and the second sheath unit.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an insulated wire,

TECHNICAL FIELD The present invention relates to electric wires, and more particularly, to an insulated electric wire that is easy to construct and a method of manufacturing the same.

Electric wires are essential for the construction of electric circuits and most of them are insulated wires except for bare wires used for special high-voltage transmission lines and trolley wires. The insulated wire is composed of a conductor which conducts electricity and an insulator which covers the circumference of the conductor, and copper having a low electric resistance is usually used for the conductor. Rubber, vinyl, polyethylene, crosslinked (cross-linked) polyethylene and the like are used for the insulation.

In general, the wires are coated with a sheath (sheath or sheath) for external protection on the core coated with an insulating sheath on the conductor. The sheath is required to have abrasion resistance, impact resistance, operability, and weather resistance, and materials such as vinyl and neoprene are used. Also, cranes and other moving machines are using tires that are stronger than the cable and covered with a sheath.

As a result, electric wires mainly used for small-current (moving) wiring of household electrical appliances are generally used by twisting small-diameter wires to improve mobility.

On the other hand, the conventional vinyl wire structure has a circular outer shape, which is difficult to attach to a wall surface or a window frame. In addition, when a commonly used block, clip, or the like is used, pressing on the outer surface of the wire may occur, and if it is severe, insulation breakdown may be caused. There may be a need in the art for wires that can overcome this problem.

The present invention is intended to provide convenience in construction and installation work as compared with conventional wires in the installation of electric wires and the operation of apparatus.

In addition, the present invention is intended to solve the inconvenience of construction of the existing vinyl wire structure and to prevent the damage of the wire enclosure. Further, in the case of having two or more conductor portions, the present invention is intended to improve the insulation safety by separating the spacing distance between the conductor portions at appropriate intervals.

The present invention reduces the material consumption of the sheath portion by varying the outer shape of the sheath portion, and consequently reduces the material cost of the electric wire.

According to an embodiment of the present invention, an insulated electric wire that can be easily installed includes a conductor unit including a first conductor unit and a second conductor unit each formed of at least one conductive metal or at least one conductive metal alloy; An insulation unit including a first insulation unit and a second insulation unit, each of which is composed of at least one insulator and surrounds and encloses the first conductor unit and the second conductor unit, respectively; And a sheath portion surrounding the insulating portion, wherein the sheath portion includes: a first sheath unit having a circular or polygonal shape surrounding the first insulating unit; A second sheath unit of a circular or polygonal shape surrounding the second insulating unit; And a connecting unit for separating the first sheath unit and the second sheath unit from each other and connecting upper ends of the first sheath unit and the second sheath unit to each other to connect the first sheath unit and the second sheath unit. do.

According to an embodiment of the present invention, it is possible to provide convenience in construction and installation work in comparison with a conventional electric wire when installing and operating the electric wire.

In addition, according to one embodiment of the present invention, it is possible to solve the inconvenience of construction of the existing vinyl wire structure and to prevent damage of the wire enclosure. Further, when two or more conductor portions are provided according to an embodiment of the present invention, the insulation distance between the conductor portions may be spaced apart by appropriate intervals to improve the insulation safety.

According to an embodiment of the present invention, it is possible to reduce the material consumption of the sheath portion by varying the outer shape of the sheath portion, and as a result, the material cost of the electric wire can be reduced.

FIG. 1 is a view of an insulated wire in which at least one core wire, which is a conventional technique, is wrapped in a circular sheath.
FIG. 2 is a cross-sectional view of an easy-to-install electric wire including a conductor portion, an insulation portion, and a sheath portion according to an embodiment of the present invention.
3 is a cross-sectional view of a wire connecting a center of a unit of a circular sheath according to an embodiment of the present invention.
FIG. 4 is a cross-sectional view of an electric wire including an adhesive portion and a folding groove in an electric wire which is easy to construct according to an embodiment of the present invention.
5 is a view of a wire having a sheath unit triangular in accordance with an embodiment of the present invention.
6 is a view of an electric wire bonded to an outer structure using a bonding portion and a folding groove according to an embodiment of the present invention.
7 is a view of a wire having a sheath unit of rectangular shape and formed with a separation groove according to an embodiment of the present invention.
FIG. 8 is a view of a wire in which connecting units are separated along a separation groove according to an embodiment of the present invention. FIG.
9 is a flowchart showing a method of manufacturing an insulated wire which can be easily constructed according to an embodiment of the present invention.

Various embodiments and / or aspects are now described with reference to the drawings. In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of one or more aspects. However, it will also be appreciated by those of ordinary skill in the art that such aspect (s) may be practiced without these specific details. The following description and the annexed drawings set forth in detail certain illustrative aspects of one or more aspects. However, it is to be understood that these aspects are illustrative and that some of the various ways of practicing the various aspects of the principles of the various aspects may be utilized and that the described teachings are intended to include both such aspects and their equivalents.

In addition, various aspects and features will be presented by a system that may include multiple devices, components and / or modules, and the like. It is to be understood that the various systems may include additional devices, components and / or modules, and / or may not include all of the devices, components, modules, etc. discussed in connection with the drawings It must also be understood and understood.

In addition, the term "or" is intended to mean "exclusive" or "not inclusive" or: in other words, unless otherwise specified or unclear in context, "X uses A or B" Quot; X " uses A or, if X uses B, or if X uses both A and B, "X uses A or B" It should be understood that the term "and / or" as used herein refers to and includes all possible combinations of one or more of the listed related items.

It is also to be understood that the term " comprises "and / or" comprising " means that the feature and / or component is present, but does not exclude the presence or addition of one or more other features, components and / It should be understood that it does not. Also, unless the context clearly dictates otherwise or to the contrary, the singular forms in this specification and claims should generally be construed to mean "one or more. &Quot;

FIG. 1 is a view of an insulated wire in which at least one core wire, which is a conventional technique, is wrapped in a circular sheath. The insulated wire refers to a wire with an electrically insulated coating, and the wire in the present invention may include an insulated wire. A core wire means a wire covered with an electrical conductor with an insulator, and a sheath means an outer cover material for protecting a cable against trauma or corrosion.

Conductors can be divided into electrical conductors and heat conductors. Electrical conductors are materials that have good electrical conductivity and heat conductors are materials that transmit heat well. Conductors and non-conductors are distinguished by their degree of relative delivery, not by their ability to deliver. In the present invention, a conductor is a material used for electric wires. Hereinafter, the conductor means an electric conductor.

An insulator is a substance that does not conduct electricity or heat. It is also called an insulator. In practice, a very small electrical conductivity or thermal conductivity can be used as an insulator. In the present invention, the insulator is a material used for electric wires. Hereinafter, the insulator means an electric insulator.

Conventional insulated wires are composed of sheaths having a circular outer shape as a whole and are not easy to attach to external structures such as walls and trees. Also, one or more cores are wrapped in a single sheath, and proper insulation distance is not secured. When installing and installing conventional wires in an external structure, the use of external devices such as staples, saddles, and blocks may cause damage to the sheath due to compression applied to the sheath, risk of fire due to disconnection, There was a risk of synthesis.

According to an embodiment of the present invention, an insulated wire which is easy to install can have a proper spacing between two or more core wires by a connection unit. The insulated electric wire of the present invention which is easy to construct through an appropriate distance of insulation can improve the insulation safety. In addition, according to one embodiment of the present invention, it is possible to solve the inconvenience of construction of the existing vinyl wire structure and to prevent damage of the wire enclosure. Therefore, according to one embodiment of the present invention, it is possible to provide convenience in construction and installation work as compared with a conventional electric wire in the installation of the electric wire and the device operation.

2 is a cross-sectional view of an easy-to-install electric wire 100 including a conductor portion, an insulation portion, and a sheath portion according to an embodiment of the present invention.

The term " conductor part " used in the present invention means a part composed of conductors in the wire. The conductor is generally made of an alloy mainly composed of silver, copper, aluminum, iron or copper. Copper with low electrical resistance is mainly used for electric wires. The conductor portion comprises at least one conductor unit, wherein the conductor unit (1) means a conductor consisting of at least one conductive metal or said at least one conductive metal alloy, respectively. The conductor unit 1 may have, for example, a circular conductor wire having an uniform outer diameter or a shape obtained by winding one or more circular conductor wires in a spiral shape so as to be twisted together. A single wire is also called a single wire, and twisted wires are sometimes called twisted wires. The thickness of the conductor is mainly determined by the diameter (mm) of the single wire and the cross-sectional area (mm 2) of the twisted wire.

The term 'insulator' used in the present invention means a portion composed of an insulator in a wire. Glass, ebonite, diamond, and rubber are electrical insulators, and rubber, polyethylene, or vinyl chloride mixtures are mainly used for wires. The insulator used for the wire is vinyl, polyethylene, or crosslinked polyethylene for 600 V, and crosslinked polyethylene for high voltage of 3,000 V or more. The insulating portion includes an insulating unit 2, wherein the insulating unit 2 is composed of at least one insulator and covers and surrounds the conductor unit.

The term "sheath" used in the present invention refers to an outer covering portion, and a metal such as lead or aluminum, or a polymer material such as neoprene or polyethylene is used. The sheath is mainly made of rubber, vinyl chloride or neoprene which has abrasion resistance and heat resistance. The sheath portion includes a sheath unit (4) and a connecting unit (5). The sheath unit 4 refers to a sheath surrounding the core wire. In the present invention, the core wire means the insulation unit 2 surrounding the conductor unit 1 and the conductor unit. The connecting unit 5 serves to connect two or more sheath units 4 together. In one aspect of the present invention, the connecting unit 5 and the sheath unit 4 can be made integrally.

The sheath unit 4 may have various forms. The present invention can include not only a circular shape but also a cross-sectional shape of various polygons such as a triangle, a square, and a pentagon.

Meanwhile, according to one embodiment of the present invention, talc powder 3 may be further included between insulating unit 2 and sheath unit 4. Talc powder refers to powder form of talc, which is a silicate mineral. Talc is insulated against electricity, strong in absorbency and fixability when powdered, and excellent in refractory properties, so it is widely used as a refractory or filler.

In the present invention, the connecting unit 5 separates two or more sheath units 4 from each other. The connecting unit 5 may be formed such that the upper end surfaces of the both ends are engaged with the lower end portions of the two or more sheath units 4 to connect them and form a bottom surface of the sheath including a planar shape.

The connecting unit 5 may be formed by arranging two or more sheath units 4 in parallel and connecting the sheath units 4 in a continuous structure. .

The predetermined length is longer than, for example, the distance between the centers of two or more insulating units 2 (hereinafter referred to as a first insulating unit and a second insulating unit), and the upper end of the connecting unit 5 is connected to the first sheath unit (The sheath unit surrounding the first insulating unit) and the second sheath unit (the sheath unit surrounding the second insulating unit). Various insulation distances can be ensured depending on the place where the electric wire is used, the use, the shape and size of the external structure to be constructed, and the like.

The connecting unit 5 may be composed of any material that is deformed when a force is applied and can maintain a deformed state even when the force is removed. Therefore, since the sheath units 4, which are connected to the connection unit 5 by bending the connection unit 5, can be wound toward each other, storage and management of the insulated electric wire 100 can be facilitated.

2, a connecting unit 1 for connecting a conductor unit 1, an insulating unit 2, a talc powder 3, and a first sheath unit and a second sheath unit 4 surrounding the conductor unit 1, (5) is shown. The shape of each component of the insulated electric wire 100 shown in FIG. 2 is exemplary and various shapes of components may also be included within the scope of the present invention depending on the state in which the electric wire is used.

3 is a cross-sectional view of a lead connecting the connecting unit 5 to the center of the circular sheath unit 4 according to an embodiment of the present invention. The connecting unit 5 is not necessarily connected to the lower end of the sheath unit 4 as shown in Fig. When the connecting unit 5 forms the lower end surface of the sheath, it is easy to adhere to a flat external structure and stable adhesion is possible. However, even if the connecting unit 5 does not form the lower end surface of the sheath as shown in Fig. 3, an appropriate insulating distance can be ensured.

The connection unit 5 may be wound around the sheath unit 4 to arbitrarily adjust the insulation distance if the material of the connection unit 5 is ductile or stretchable and easy to process. In the construction of the wire, the connection unit 5 may have the function of providing a plane and providing the insulation distance and adjusting it.

As described above, the insulated electric wire 100 that is easy to install can include the conductor unit 1, the insulating unit 2, the talc powder 3, the sheath unit 4, and the connecting unit 5.

The insulated electric wire 100, which is easy to install, may further include a bonding portion 6, a folding groove 7, or a separation groove 8.

FIG. 4 is a cross-sectional view of an electric wire including an adhesive portion 6 and a folding groove 7 in an electric wire 100 that is easy to construct according to an embodiment of the present invention.

The connection unit 5 may form the lower end surface of the sheath portion and the adhesive portion 6 may be attached to the lower end surface thereof. The adhesive portion 6 is made of an adhesive material on both sides in order to adhere the wire of the present invention to the outer structure. The adhesive material may include a variety of commonly used adhesives such as a double-sided tape, a bond, and the like.

The adhesive material constituting the adhesive portion 6 may include a material having thermal conductivity. Thermally conductive materials include thermal grease, silicon pads, and thermally conductive plastics. When a thermally conductive material is included, the heat generated from the electric wire or the external structure can be assisted, and the effect of cooling the high temperature material can be obtained.

The connecting unit 5 may be formed with a folding groove 7 so that the wire of the present invention can be easily bent. The folding grooves 7 can facilitate the folding or folding of the connecting unit 5 when necessary. The cross-section of the folding groove 7 can have various shapes such as a circle, a triangle, and a polygon. The center of the folding groove 7 has a shape thinner than the thickness of the connecting unit 5 so that it can easily bend. The folding groove 7 shown in Fig. 1 has a triangular V-shaped cross section and may include various shapes not shown in the drawings. Further, the position of the folding groove 7 may be variable depending on the application or position in which the electric wire is installed, and it is not necessarily required to be located at the center of the connection unit 5. [

5 is a view of a wire in which the sheath unit 4 is triangular in accordance with one embodiment of the present invention. As described above, the sheath unit 4 may include various shapes such as a rectangle, a pentagon, and a hexagon, in addition to the triangular shape shown.

When the shape of the cross section of the sheath unit 4 is varied, the shape of the wire exposed to the outside can be diversified to provide an aesthetic effect. You can also use wires as an interior. Also, depending on the shape of the sheath unit 4, it is possible to obtain the effect of securing the price competitiveness of the product by reducing the material cost of the sheath unit 4 and the amount of the material used. On the other hand, whether or not the adhesive portion 6 and the folding groove 7 are present and their characteristics are not related to the shape of the sheath unit 4. [

6 is a view of wires bonded to an outer structure using a bonding portion 6 and a folding groove 7 according to an embodiment of the present invention. When wires are bonded to the outer structure, the wires can be bonded by the bonding portion 6. [

Conventionally, an external device such as a staple, a saddle, a block, and a clamp has been used in the installation work of the electric wire, and a problem that scratches are generated on the insulator due to the external devices may occur. If the insulation is damaged, the insulation may be deteriorated and the risk of fire may occur. The use of the adhesive portion 6 eliminates the need to use an external device in the installation work of the electric wire, and the risk of damage to the insulator can be reduced.

On the other hand, if the wire according to the embodiment of the present invention is used for the portion where the adhesion is not easy, such as the edge of the outer structure, the installation of the wire can be facilitated. The connection unit 5 of the present invention may have a size for ensuring a proper insulation distance when it includes one or more core wires. Therefore, the electrical stability can be ensured by maintaining an appropriate insulation distance, and the electric wires can be provided so as to contact with two orthogonal planes constituting the mock-up by bending the connection unit (5). The connection unit 5 may be composed of a material which is deformed when a force is applied to facilitate deformation and has a property of maintaining a deformed state even if an applied force is removed.

The folding groove 7 is located at the upper end of the connecting unit 5 and the center of the folding groove 7 is thinner than the thickness of the connecting unit. In Fig. 6, the shape of the folding groove 7 is shown to be adhered to an outer structural body at an angle by enlarging the clearance of the groove depending on the degree to which the connecting unit 5 is bent. The clearance of the folding groove 7 can overcome the elasticity and restoring force depending on the material when the connecting unit 5 is bent and can help to bond the wires for a longer period of time.

7 is a view of an electric wire in which the sheath unit 4 is rectangular and the separation groove 8 is formed according to an embodiment of the present invention. As stated, the sheath unit 4 may include various shapes of figures.

The separation groove 8 may be located at the upper end portion or the lower end portion of the connection unit 5. By separating the connecting unit 5 along the separation groove 8, the gap between the first sheath unit and the second sheath unit can be increased more than when the connecting unit 5 is not separated. The separation groove 8 can facilitate the detachment of the connection unit 5 without using a device for cutting or processing the cloth such as scissors, nippers, knives, and the like. In order to obtain such an effect, the connecting unit 5 must be easily separable, so that the separating groove 8 may include the shape of the V-shaped groove.

8 is a view of a wire with the connecting unit 5 separated along the separating groove 8 according to an embodiment of the present invention. The position of the separation groove 8 does not necessarily have to be located in the center of the connection unit 5.

9 is a flowchart showing a method of manufacturing an insulated wire which can be easily constructed according to an embodiment of the present invention. The manufacturing process of the insulated electric wire 100 which is easy to construct is as follows.

A wire drawing step (S1) of drawing a plurality of conductors consisting of at least one conductive metal or said at least one conductive metal alloy through a hole in the die, a plurality of conductors drawn from the die, An annealing step (S3) of heating the combined conductors at a temperature of 420 ° C. for 4 hours in a vacuum state and then cooling them naturally for 24 hours, a step (S2) of winding them together in a spiral manner, (S4) of wrapping a plurality of conductors wound like a roll, a first coating step (S5) of wrapping the wrapped conductor with an insulator, spraying oil or talc powder onto the insulator coated with the conductor, A step (S6) of injecting oil or talc powder onto the outer circumferential surface of the insulator, a step of applying a metal such as lead or aluminum or a polymer material such as neoprene or polyethylene to the insulator to which the oil or talc powder is adhered A second covering step (S7) of wrapping and wrapping the used sheath body; the sheath body covering and wrapping the insulator is joined to the lower end portions of the plurality of insulators to connect them, and a planar connection (S8) for forming a unit, and a bonding step (S9) for attaching a bonding portion made of an adhesive material on both sides to the lower end portion of the sheath body to form an insulated electric wire (100) The process takes place. Such a manufacturing method will be briefly described as follows.

Conductor drawing → conductor assembly → annealing (softening) → rewinding → first inspection (small wire diameter, stranded wire) → insulator work → oil spraying / talc powder injection work → cishe work → cooling → winding → attaching thermally conductive adhesive tape → Second inspection (appearance, disconnection, crosstalk, eccentricity, unformed, tape attachment, etc.) → Finished product packaging → Shipping

Drawing is one of the metal processing methods. When making steel wire or steel wire, drawing is done through hole of die to make line of desired shape and dimension. A set is a process of joining extracted lines. Annealing refers to an operation of heating a metal material to an appropriate temperature and gradually cooling it to room temperature. This operation eliminates the internal residual stress of the cured material by machining or quenching and increases the ductility by making the crystal grains finer. Annealing is also called softening treatment. Winding refers to the act of rolling or acting like a roll, and after the winding process, the wire diameter (the outer diameter of the wire) and the wire cloth are inspected.

The description of the disclosed embodiments is provided to enable any person 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 generic principles defined herein may be applied to other embodiments without departing from the scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features presented herein.

100: Insulated wires for easy installation
1: Conductor unit
2: Insulation unit
3: talc powder
4: sheath unit
5: connecting unit
6:
7: Folding groove
8: separation groove

Claims (18)

delete delete delete delete delete delete delete delete delete delete delete A conductor unit comprising a first conductor unit and a second conductor unit each of which is composed of at least one conductive metal or at least one of the at least one conductive metal alloy;
An insulation unit including a first insulation unit and a second insulation unit, each of which is composed of at least one insulator and surrounds and encloses the first conductor unit and the second conductor unit, respectively; And
A sheath portion surrounding the insulating portion; / RTI >
The sheath portion
A first sheath unit of a circular or polygonal shape surrounding the first insulating unit;
A second sheath unit of a circular or polygonal shape surrounding the second insulating unit; And
The first sheath unit and the second sheath unit are spaced apart from each other by a length sufficient to allow one of the first sheath unit and the second sheath unit to be wound toward the other sheath unit, A first sheath unit and a connecting unit coupled to the lower ends of the second sheath unit to connect the first sheath unit and the second sheath unit,
A method of manufacturing an insulated wire,
A wire drawing step of drawing a plurality of wires through a hole of a die;
A collecting step of winding a plurality of lead wires extracted from the die into a spiral shape and joining them into one conductor;
An annealing step of heating the combined conductors in a vacuum state at 420 DEG C for 4 hours and then naturally cooling the conductor for 24 hours;
A winding step of winding the plurality of annealed conductors to produce the conductor section;
A first covering step of covering the conductor part with an insulator and wrapping the conductor part;
Spraying oil or talc powder onto the insulator coated with the conductor to adhere the oil or talc powder to the outer circumferential surface of the insulator to produce the insulator;
A second covering step of covering the sheath portion with the insulating portion;
A connecting unit forming step of connecting the lower ends of the first sheath unit and the second sheath unit constituting the sheath with the connecting unit; And
Attaching a bonding portion made of a thermally conductive adhesive material on both sides of the lower end portion of the sheath;
The method of manufacturing an insulated wire according to claim 1, delete delete delete delete 13. The method of claim 12,
Further comprising a folding groove forming step of forming a folding groove in at least a part of an upper surface of the connecting unit so that the insulated electric wire can be bent easily. delete

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