KR101918978B1 - Eco-Lead wire type cut out switch - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a cut-out switch for algae accidents and ground fault prevention using eco-friendly silicon.
Accordingly, the technical point of the present invention is that the insulator body except for the fuse is formed so as to cover the entire insulator of the insulator body with an insulation jacket of a high temperature curing (HTV) silicone material, which is not made of PVC or EPDM material and has insulation performance, tracking resistance, weather resistance, , Corrosion resistance and scratch resistance are remarkably improved, which is characterized in that the use safety and the service life are remarkably improved.
In addition, the lead wire is integrally covered with the upper metal wire, and the lead wire connected thereto is prevented from bending and excessive bending due to wind or external force due to the expansion hole of the clamp holder and the outer cone of the insulating sheath. , Which is characterized in that it can safely protect the breakage (damage) of the lead wire at the joint portion of the integrally connected lead wires.
Further, according to the present invention, the protective cover is integrally covered with the upper metal fitting to ensure insulation, thereby preventing the bird electric shock accident from occurring.
Further, the present invention is intended to cover the entire outer circumferential surface of the lower metal fitting by covering the insulating sheath to improve the electrical characteristics, improve the reliability according to long-term use, and prevent the aging (oxidation and corrosion) The fixing bracket coupled with the fastener is coupled to the core (or the insulator body) as an integral type structure, not an external thread tightening structure, and then integrally formed by a single sheath together with the core by an insulating sheath, So that the fouling performance and the complement reliability can be improved.

Description

{Eco-Lead wire type cut-out switch}

The present invention relates to an insulator for a high temperature curing (HTV) silicone insulating cover which is not made of PVC or EPDM material but which is entirely made of an insulator except for a fuse. And the like are remarkably improved. The present invention relates to a cut-out switch for prevention of algae accidents and grounding by using environmentally friendly silicon, which is characterized in that use safety and life span are remarkably improved.

Generally, the cut-out switch (COS) is installed by using a fixing bracket on a wire for supporting a power line. When a fault or an accident occurs, the fuse blows, and the substance inside the fuse can securely discharge the arc gas with the insulating gas, , And a structure to safely cut off the fault current.

In more detail, as shown in FIG. 6, the conventional punch transformer 100 is installed on the electric pole 150 at a position somewhat distant from a building such as a residential house.

That is, when the pillar transformer 100 is installed at a predetermined position of the electric pole 150, a cut-out switch 160 is installed above the pillar transformer 100. The cut-out switch 160 is connected to the pillar transformer 100 The bipolar transformer 100 is connected to the primary side high-voltage bushing 130 of the transformer 100 by a cable 170, and is protected from overvoltage and fault current.

The cut-off switch 160 is connected to the primary side high-voltage bushing 130 of the pillar transformer 100 so that when the overload or the fault current is applied, It is formed to protect the transformer from accidents such as a low-side bushing short-circuit on the car side.

The cutout switch 160 is connected to the primary side high-voltage bushing 130 of the pillar transformer 100 to allow fuses (not shown) to be fused when an overload or a fault current is applied to the pillar transformer 100, It is designed to protect the transformer from accidents such as secondary shorts.

Thus, the conventional cut-out switch (COS) 160 is attached to the primary side of the pneumatic transformer and the high-voltage charge-point of the transformer to prevent breakage or breakage of the transformer due to overload or failure of the transformer, This is an overcurrent protection device used to open and close the line of the transformer at the same time as protecting it.

On the other hand, Korean Utility Model Registration No. 20-0461224 (see FIG. 7) discloses a cut-out switch as a prior art.

This conventional prior art has a support insulator 2 to which an attachment bracket 1 for fixing to a full body abutment gold is connected to a break, a load side terminal 4 to be connected to and supported by a lower end of the support insulator 2, A power source side insulator 3 connected to the upper end of the insulator 2, a fuse circulating hole 11 electrically connected to the power source side insulator 3, a fuse circulating hole 11, And a fuse holder (5) rotatably connected to selectively energize the power source side insulator (4), wherein the power source side insulator metal (3) has one end embedded in the upper end of the support insulator The power cable 20 is connected to the upper end of the support insulator 2 so that power is supplied to the power side insulator 3. The connection part of the power cable 20 is supported by a support insulator 2) and an integral type To a polymer cutout switch.

However, in the conventional cut-out switch, the fixing metal for fixing the wire to the electric wire is band-shaped and is always exposed to the outside. Corrosion of mechanical devices such as a band and a bolt occurs, The reliability of the product is deteriorated due to exposure to the risk of falling, and there is a problem that flashover occurs from the upper metal fitting to the mounting metal fitting, and the lower metal fitting is also exposed to the outside, resulting in the same problem.

In addition, in the conventional cut-out switch, the insulating cover is used to prevent the fuse opening at the upper end of the fuse box from being exposed to the external environment. However, such an insulating cover can not completely prevent exposure of the metal fitting, In addition, when a bird nest is formed on the lower side of the insulating cover, there is a problem that a power failure occurs due to a short circuit .

In other words, summarizing the problems of the above-described prior art (see Fig. 7)

1. Although it is a lead wire integrated structure, it is made of PVC material or cheap EPDM natural rubber material as covering part, so that water penetration (water repellency) is generated,

2, when insulated cover is used, bolts are fastened and fixed, and there is a problem of being loosened and being exposed to avian electric shock accident,

3. Body The middle bracket is covered with a tube in a band form to insulate it. This also causes a flashover and flashover, which reduces the reliability of the product.

4. The lower metal part is also exposed to the outside, which causes deterioration of electric characteristics, product reliability and insulation characteristics when used for a long time.

1. Registered Utility Model No. 0282453 (Registered on July 19, 2002)

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is a technical object of the present invention to provide an insulator body which is formed so as to completely cover an insulator body excluding a fuse with an insulation shell of a high temperature curing (HTV) The present invention relates to a cut-out switch for algae accidents and ground fault prevention using eco-friendly silicon, which is remarkably improved in performance, tracking resistance, weather resistance, water repellency, corrosion resistance and scratch resistance, The present invention has been made in view of the above problems.

Accordingly, the lead wire is integrally covered with the upper metal wire, and the lead wire connected thereto is prevented from bending and excessive bending due to wind or external force due to the expansion hole of the clamp holder and the outer cone of the insulating sheath. , Which is capable of safely protecting the lead wire from breakage (damage) at a joint portion of an integrally connected lead wire.

It is another object of the present invention to provide a protective cover which is integrally covered with an upper metal member so as to provide insulation, thereby preventing a bird electric shock accident.

In addition, the present invention aims at improving the electrical characteristics, improving the reliability according to long-term use, and preventing the deterioration (oxidation, corrosion, etc.) due to the prevention of the exposure by covering the outer surface of the entire lower surface of the lower metal fitting, The fixing bracket coupled with the fastener is coupled to the core (or the insulator body) as an integral type structure, not an external thread tightening structure, and then integrally formed by a single sheath together with the core by an insulating sheath, The present invention has been made to solve the above problems.

In order to achieve the above object, the present invention provides a method of forming a core 110 having a length in one direction, wherein an upper bracket 130 coupled with a lead wire 120 is formed on the core 110, A fuse 200 is coupled between the upper and lower brackets 130 and 150 and the lower bracket 150 is coupled to the lower end of the core 110 A clamp holder 180 is formed on one side of the upper bracket 130 to which the lead wire 120 is coupled so that the upper bracket 130 and the upper bracket 130 are coupled to each other, The lead wire 120, the upper metal wire 130, the load side terminal 140, the lower metal wire 150, the fixing metal wire 170, and the clamp holder 180 are connected to the cut- The outer circumferential surface is integrally injected and projected by the insulating shell 160 made of high-temperature hardening (HTV) silicone material It is formed.

A ring band 171 integrally fixed to the core 110 is formed before covering the insulating shell 160. The ring band 171 has a fastener 172 on one side of the outer circumferential surface thereof, The fastening arm 173 is formed so that the entire outer circumferential surface of the fastening arm 173 together with the core 110 is directly injected when the insulating shell 160 is covered with the fastening arm 173.

It is preferable that a plurality of crease insulators 161 are formed on the outer circumferential surface of the core 110 and the fixing metal 170.

At this time, the clamp holder 180 is formed such that an extended opening hole 181 having a diameter larger than the diameter of the lead wire 120 is formed at the entrance end where the lead wire 120 is drawn, and the extended opening hole 181 extends from the entrance end to the inside And the insulation shell 160 is formed in a shape of a funnel-like barrel having a conical shape so that the lead wire 120 is inserted into the extended opening hole 181, Thereby preventing a bending phenomenon during the flow of the fluid.

The upper cover 130 is coupled to the outer side of the protective cover 300 so that the protective cover 300 covers the fuse box 211 branched toward the fuse 200 from the upper side, And the entire outer circumferential surface is integrally covered with the upper metal fitting 130 by the insulating sheath 160 as a rectangular pipe.

As described above, the present invention is characterized in that the insulator main body excluding the fuse is formed so as to cover the entire insulation insulator of a high temperature curing (HTV) silicone material which is not made of PVC or EPDM material so as to cover the insulation resistance, Corrosion resistance and scratch resistance are remarkably improved. This has the effect of significantly improving the safety of use and the service life.

In addition, the lead wire is integrally covered with the upper metal wire, and the lead wire connected thereto is prevented from bending and excessive bending due to wind or external force due to the expansion hole of the clamp holder and the outer cone of the insulating sheath. , Which has the effect of safely protecting the breakage (damage) of the lead wire at the joint portion of the lead wires integrally connected to each other.

In addition, according to the present invention, the protective cover is integrally covered with the upper metal member so as to insulate the bird's eye. Thus, the bird's electric shock accident can be prevented originally.

Further, the present invention is intended to cover the entire outer circumferential surface of the lower metal fitting by covering the insulating sheath to improve the electrical characteristics, improve the reliability according to long-term use, and prevent the aging (oxidation and corrosion) The fixing bracket coupled with the fastener is coupled to the core (or the insulator body) as an integral type structure, not an external thread tightening structure, and then integrally formed by a single sheath together with the core by an insulating sheath, It is possible to improve the resistance to fouling and the reliability of supplementation in the occurrence of the flashover.

In addition, according to the present invention, since the main shaft tube is made of FRP material and the outer circumference of the core is coated with a sheath of silicone material, secondary damage is minimized when fragments due to breakage of the insulator are scattered, It is possible to achieve weight reduction compared to the insulator, thereby facilitating handling of the product, and particularly improving the working environment such as installation and maintenance.

In addition, in the present invention, when the lead wires are integrally formed in a state that they are inserted into the upper metal fittings, the conventional two-point connection method (connecting separate lead wires to the power distribution lines and the upper metal fittings) So that the installation process can be shortened.

1 is an exemplary view of a cut-out switch according to the present invention,
Fig. 2 is a side sectional view of Fig. 1,
FIGS. 3 to 4 are views showing details of a main part according to the present invention,
5 is an exemplary view showing another embodiment of the outer cone according to the present invention,
Fig. 6 is an illustration showing an example in which a conventional pneumatic transformer and a cut-out switch are installed on a pole;
Fig. 7 is a diagram showing an example of a conventional cut-out switch (COS).

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the accompanying drawings.

1 through 5, the present invention is largely composed of an insulator main body 100 and a fuse 200. The technical idea of the insulator main body 100 includes a core 110, a lead wire 120, The upper metal piece 130, the load side terminal 140, the lower metal piece 150, the fixing metal piece 170 and the clamp holder 180 are integrally formed by the insulating casing 160 made of a high temperature hardening (HTV) silicone material. As shown in FIG.

That is, the insulator main body 100 has a core 110 formed therein, an upper bracket 130 having a lead wire 120 inserted therein, and a lower bracket 150 The insulator 160 is formed by integrally injection-molding the core, the upper and the lower metal, and has a plurality of insulator 161 on the outer circumferential surface thereof.

The insulator main body 100 according to the present invention includes a core 110 having a length in one direction and an upper bracket 130 coupled with a lead 120 on the core 110, .

A fuse 200 is coupled between the upper bracket 130 and the lower bracket 150 so that a lower bracket 150 coupled to the load side terminal 140 is formed on the lower side of the core 110 .

A clamp holder 180 is formed on one side of the upper bracket 130 to which the lead wire 120 is coupled so that the fixing bracket 170 is coupled to the middle wire of the core 110, And is formed to be energized with the upper metal fitting 130.

The fuse 200 is formed with a fuse cartridge 210 having a fuse bracket 211 electrically connected to the upper bracket 130 of the insulator body 100, And a fuse holder 230 having a bracket 220 at a lower portion thereof so as to be rotatable for selectively energizing the fuse bracket.

At this time, when the fuse cartridge 210 is fused due to an accident or the like, the bracket 220 connected to the fuse holder 230 is rotated due to the self weight of the fuse and is opened downward.

Accordingly, the fuse cartridge 210 dissolves the inside of the fuse link 210 due to arc heat generated when a fuse link (not shown) is operated and generates an insulative gas. The insulative gas suppresses the continuation of the arc, And is discharged to the outside.

As described above, according to the present invention, the insulator main body excluding the fuse is formed so as to cover the entire surface of the insulator body with an insulation jacket made of a high temperature hardening (HTV) silicone material rather than PVC or EPDM material. , Water repellency, corrosion resistance and scratch resistance are improved remarkably, which is characterized in that use safety and life span are remarkably improved.

At this time, the core 110 is formed of a glass fiber reinforced plastic (FRP) material, and the insulator 160 is formed of a high-temperature hardening (HTV) silicone material to prevent a secondary discharge due to scattering And is formed so as to improve the tracking resistance, weather resistance, scratch resistance and water repellency.

In other words, the core 110 functions as a body of a cut-out switch (COS), and can maintain a high strength and light weight as compared with conventional magnetic materials (e.g., ceramics).

At this time, it is preferable that a plurality of crease insulators 161 are formed on the outer circumferential surface of the insulating shell 160 when covering the core 110 side.

In order to improve the water repellency and shorten the work process, the lead wire 120 is formed of the same high temperature hardening (HTV) silicone material as the insulator shell, and the lead wire 120 is integrally formed .

In other words, the conventional outer covering material mainly uses PVC wire or EPDM natural rubber. When used for a long time, water repellency is deteriorated due to material limit, and various insulation accidents occur. Such problems are excellent in water repellency and tracking resistance, (HTV) silicone material.

In addition, since the outer coating of the lead wire is molded integrally with the insulator shell, it is possible to provide an environment in which there is no gap formed in the fastening portion, and moisture such as snow and rain can not penetrate into the inside.

In addition, since the lead wires are integrally formed with the lead wire inserted into the upper metal fitting, the conventional two-point connection method (connecting the lead wires to the power distribution lines and the upper metal fittings) The work process can be shortened.

A ring band 171 integrally fixed to the core 110 is formed before covering the insulating shell 160. The ring band 171 has a fastener 172 at one side of the outer circumference, The fastening arm 173 is formed so that the entire outer circumferential surface of the fastening arm 173 together with the core 110 is directly injected when the insulating shell 160 is covered with the fastening arm 173.

That is, the insulator main body 100 is formed such that the insulator 160 is integrally injection-molded in a state where the fixing bracket 170 is fixed to the core 110 and is fixed to the core 110.

Such a fixing metal piece 170 minimizes the exposure of the outside, so that the flashover phenomenon generated from the upper metal piece to the fixing metal piece is fundamentally cut off, thereby improving the insulation performance, preventing the product from being corroded or aged, , It can be shipped in the state of being assembled at the time of the first production compared to the method of bonding in the band form outside the insulator, thereby shortening the work process.

At this time, it is preferable that a plurality of crease insulators 161 are formed on the outer circumferential surface of the insulating shell at the side of the fixing metal piece 170 when covering.

The clamp holder 180 is formed such that an extended opening hole 181 having a diameter larger than the diameter of the lead wire 120 is formed at the entrance end of the lead wire 120. The extended opening hole 181 extends from the entrance end to the inside And the insulation shell 160 is formed in a shape of a funnel-like barrel having a conical shape so that the lead wire 120 is inserted into the extended opening hole 181, Thereby preventing a bending phenomenon during the flow of the fluid.

At this time, the shell cone is formed integrally with the lead wire on the upper narrow-diameter side, and the lower wide-diameter side is formed integrally with the opening hole while being integrally formed. The molded side cross-sectional shape has a constant thickness, The tentacle with the buffering balls 192 coupled to the ends of the branch lines 191 is formed at the same time as the flexible silicon is filled in the hollow space and the tentacle is formed in the free direction It is possible to mitigate the impact even if it is crushed, bent or warped, thereby increasing the buffering effect so that the connecting portion of the lead wire is not damaged or damaged.

The upper cover 130 is coupled to the outer side of the protective cover 300 so that the protective cover 300 covers the fuse box 211 branched toward the fuse 200 from the upper side, And the entire outer circumferential surface is integrally covered with the upper metal fitting 130 by the insulating sheath 160 as a rectangular pipe.

That is, the fuse 200 is further provided with a protective cover 300 integrally formed with the upper metal fitting 130 of the insulator body 100 to prevent the fuse metal fittings 211 from being exposed to an external hazard.

The protective cover 300 prevents the fuse bracket from being exposed to the outside, thereby preventing a power failure due to the algae from occurring, and a separate insulating cover is not necessary.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the appended claims and their equivalents. Of course, such modifications are within the scope of the claims.

100 ... insulator body 110 ... core
120 ... lead wire 130 ... upper metal bracket
140 ... Load side terminal 150 ... Lower metal fitting
160 ... Insect cover 161 ... Insect cover
170 ... Fixing bracket
200 ... Fuse 210 ... Fuse cartridge
211 ... Fuse bracket 220 ... Bracket
230 ... Fuse holder 300 ... Protective cover

Claims (5)

An upper bracket 130 is formed on the upper side of the core 110 and a lead wire 120 is coupled to the lower side of the core 110. A load terminal 140 A fuse 200 is coupled between the upper and lower brackets 130 and 150 so that the fuse 200 is coupled to the middle wire of the core 110, A cut-out switch for connecting the upper metal member 130 with the clamping member 180 is formed at one side of the upper metal member 130 to which the lead wire 120 is coupled,
The core 110, the lead 120, the upper bracket 130, the load side terminal 140, the lower bracket 150, the fixing bracket 170, and the clamp holder 180 are made of a high temperature hardening (HTV) The fixing bracket 170 is formed with a ring band 171 which is integrally fixed to the core 110 before covering the insulating casing 160 And the fastening arm 173 is formed on one side of the outer circumferential surface of the ring band 171 such that the fastening arm 173 is coupled to the outer circumferential surface of the core 110, And a plurality of crimping insulators 161 are formed on the outer circumferential surface of the core 110 and the fixing metal 170. The clamp holder 180 is formed of a lead wire (181) larger than the diameter of the lead wire (120) is formed at the entrance end of the lead-in hole (120) The insulation shell 160 is formed in a shape of a funnel having an upper portion and a lower portion from the entrance end to the inside of the insulation shell 160. The insulation shell 160 has a conical shell cone 190 at a connecting portion where the lead wire 120 is inserted into the extended opening hole 181, The protective cover 300 is formed to prevent the lead wire 120 from being bent during the flow of the lead wire 120. The protective cover 300 is connected to the fuse 200 The entire outer circumferential surface is formed to be integrally covered with the upper metal fitting 130 by an insulating shell 160 in the form of a pipe having an open bottom so as to cover and protect the branched fuse metal fittings 211 from the upper side, The upper narrow diameter side is formed integrally with the lead wire 120 and the lower wide diameter side is formed integrally with the extended opening hole 181 while the molded side cross sectional shape has a constant thickness, Is filled with soft silicone. The tentacle with the buffering ball 192 coupled to the end of the line 191 is formed to prevent damage or breakage of the connecting portion when the lead wire 120 flows in the free direction. Cutoff switch for prevention.
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