KR100952900B1 - Self-contraction cable connector and self-contraction cable connecting unit and cable connecting method - Google Patents

Abstract

The present invention provides a self shrinking cable connection member. The connecting member has an inner diameter that gradually narrows from the center to both ends thereof, and cables in which the connecting ends are bound to each other are positioned therein, and are provided on the inner circumference of the connecting member body made of an elastic material and the hollow member. And a semiconducting layer internally formed on the inner circumference of the connecting member body so that one surface thereof is exposed to the inside of the connecting member body. The present invention also provides a self-shrinkable cable connection unit and a cable connection method using the same. Therefore, the present invention can connect the cables of different diameters through the configuration as described above and the semiconducting layer can be integrally formed in the connecting member to be in close contact with the outer surface of the cable.

Description

SELF-CONTRACTION CABLE CONNECTOR AND SELF-CONTRACTION CABLE CONNECTING UNIT AND CABLE CONNECTING METHOD}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a self-shrinkable cable connection member, and more particularly, a self-shrinkable cable connection member which can connect cables of different diameters to each other, wherein a semiconducting layer is integrally formed in the connection member and adheres to the insulating layer of the cable. Shrink-type cable connection unit and a cable connection method using the same.

In general, a cable used as a feed line for a high-voltage line of several tens of kilovolts (KV) is manufactured by being coated with a resin of an insulating material and a semiconducting material for the purpose of electrical insulation and equal distribution of voltage and shielding.

These cables are connected in a branch or straight line according to the direction of the electrical path to form a line. In this case, since most cable accidents occur mainly at the connections between the cables, it is required to implement a more perfect connection material that can insulate the connections.

In order to achieve this purpose, "Korean Patent Office Registration Utility Model Publication No. 20-0340047 (hereinafter referred to as a conventional document)" introduces a connecting cable for a working cable.

The connecting member of the prior art has a conductor sleeve 110 of a predetermined length having a groove 112 formed so that the conductor 162 of the processing cable 160 can be fitted at both ends, and the conductor sleeve 110 except for the groove 112. The outer periphery of the insulating layer 120, the semi-conductive layer 130 surrounding the insulating layer 120, and the groove 112 of the conductor sleeve 110, one end of the processing cable 160 Wrapped around, the other end is provided with an insulating cover 140 surrounding the insulating layer 120, and a waterproof cap 150 coupled between the insulating cover 140 and the processing cable 160.

Therefore, the connecting member of the prior art is to place the conductor sleeve inside the insulation layer to surround the outer surface, and then use a separate insulation cover separately for the portion connecting the working cable and the conductor sleeve to each other, and furthermore, In order to further provide a waterproof cap.

Accordingly, the above-mentioned prior art document additionally uses an insulation cover at a portion connecting the overhead cable and the conductor sleeve to each other and installs a separate waterproof cap for waterproofing between the insulation cable and the overhead cable. Requires connection materials.

Therefore, in the case where one end is wrapped around the processing cable by using an insulation cover and the other end is wrapped around the insulation layer, when the outer surface of the processing cable and the insulation layer is formed with a gap with the inner surface of the insulation cover, external rainwater and foreign matters, etc. Problems that may penetrate into the insulation cover may occur.

In addition, when the waterproof cap is not normally installed, the prior art has a problem that can not normally perform the role of waterproof.

Therefore, the conventional literature has a problem that the connection efficiency of the cable is determined according to the skill of the operator because the insulating layer and the waterproof cap and the insulating cover are used separately.

In addition, the prior art documents, when cables of different diameters are connected to each other at the parts electrically connected to each other, said prior art documents adopt different sizes of insulation covers and waterproof caps at one end and the other end of the insulation layer. There is a problem that must be connected.

The present invention has been made to solve the above problems, the first object of the present invention is to easily crimp both ends of the cable when the cables are electrically connected to each other to perform insulation and waterproof and ribbon The present invention provides a self-shrinkable cable connection member, a self-shrinkable cable connection unit, and a cable connection method using the same, which are used for terminal and linear connections having a stress control function.

In the second object of the present invention, in the case of connecting the cables that are electrically connected to each other, by providing a semiconducting layer in contact with both ends of the cable integrally at both ends of the connecting material to connect the cables without additional material The present invention provides a self-shrinkable cable connecting member, a self-shrinkable cable connecting unit, and a cable connecting method using the same.

A third object of the present invention is to provide a self-shrinkable cable connection member, a self-shrinkable cable connection unit, and a cable connection method using the same, which are electrically connected to each other and can easily connect cables having different diameters.

The self-shrinkable cable connecting member of the present invention for achieving the above object has an inner diameter that gradually narrows from the center portion along both ends thereof, and the cables having the connecting ends bound to each other are positioned therein, and have a hollow shape made of an elastic material. The connection member body, and provided on the inner circumference of the connection member body, and includes a semiconducting layer which is provided on the inner circumference of the connection member body so that one surface thereof is exposed to the interior of the connection member body.

Here, the connecting member body has a central portion having a first inner diameter and a predetermined length, an inclined portion extending a predetermined length so as to have a second inner diameter gradually smaller than the first inner diameter from both ends of the central portion, and a constant from the inclined portion It is preferred to have a grip that extends in length and has a third inner diameter.

The semiconducting layer is preferably embedded in the inner circumference of the grip portion.

In addition, the semiconducting layer is preferably embedded in the inner circumference of the inclined portion and the grip portion.

In addition, the semiconducting layer may be embedded in the inner circumference of the central portion.

In addition, the connector body is preferably made of either EPDM or liquid silicone rubber.

In order to achieve the above object, there is provided a self-shrinkable cable connection unit of the present invention.

The connecting unit has an inner diameter gradually narrowing from the center portion along both ends thereof, and is provided at the inner circumference of the connecting member body and a hollow connecting member body made of an elastic material and the connecting member body, wherein one surface thereof is exposed to the inside of the connecting member body. Cables having a semiconducting layer in the inner circumference of the connecting member body and a connecting member connected to the inside of the connecting member body to penetrate the connecting member body, having a fourth inner diameter larger than the inner diameter, and having the connecting ends bound to each other, are inserted therein. And a hollow guide pipe.

Here, the connecting member body has a central portion having a first inner diameter and a predetermined length, an inclined portion extending a predetermined length so as to have a second inner diameter gradually smaller than the first inner diameter from both ends of the central portion, and a constant from the inclined portion It is preferred to have a grip that extends in length and has a third inner diameter.

The semiconducting layer is preferably embedded in the inner circumference of the grip portion.

In addition, the semiconducting layer is preferably embedded in the inner circumference of the inclined portion and the grip portion.

In addition, the semiconducting layer is preferably embedded in the inner circumference of the central portion.

In addition, the connector body is preferably made of either EPDM or liquid silicone rubber.

In addition, the guide pipe is made of a plastic line having a certain length.

Here, one side of the plastic line is formed with a fitting groove along the longitudinal direction of the plastic line, the other side of the plastic line is formed with a fitting protrusion to be fitted to the fitting groove along the longitudinal direction of the plastic line, It is preferable to form a hollow pipe having a predetermined inner diameter as the fitting protrusion is fitted in the fitting groove.

The present invention provides a cable connection method in order to achieve the above object.

The cable connecting method includes a first step of disposing cables electrically connected at both ends to penetrate the inside of a connecting member body, and allowing the connecting member body to self-shrink so that both ends of the connecting member body tighten both ends of the cables. Includes two steps.

Here, the first step is made of an elastic material and extending the inner diameter of the connecting member body to the fifth inner diameter by using the expander to the connecting member body forming a hollow shape, the fourth inner diameter inside the expanded connecting member body Inserting a guide pipe having a; and positioning the cables in the guide pipe, the step of removing the guide pipe from the connecting member body, the connecting member body is self-shrink, both ends of the cable It is preferred to have a step of gripping both ends of the field.

And, it is preferable to further include the step of grip so that the semiconducting layer in the inner periphery of the connecting member body in contact with the outer surface of the cables.

In addition, it is preferable to further include the step of grip so that the semiconducting layer in the inner peripheral end of the connecting member body in contact with the outer surface of both ends of the cable.

In addition, the 5 inner diameter is preferably expanded using the expander to be larger than the 4 inner diameter.

The present invention has the effect of easily insulated and waterproofed by crimping both ends of the cables when connecting the cables that are electrically bound to each other.

In addition, the present invention, when connecting the cables in the case of connecting the cables that are electrically connected to each other, by providing a semiconducting layer in contact with both ends of the cable integrally at both ends of the connecting material can be connected to the cables without additional material Has the effect.

In addition, the present invention has the effect of being electrically connected to each other, easily connecting cables having different diameters.

With reference to the accompanying drawings, it will be described a self-shrinkable cable connection member, a self-shrinkable cable connection unit and a cable connection method using the same according to an embodiment of the present invention.

1 is a perspective view showing a self-shrinkable cable connecting member which is a linear connecting member of the present invention. 2 is a cross-sectional view taken along the line II ′ shown in FIG. 1. Figure 3a is a perspective view showing a guide pipe according to the present invention. FIG. 3B is a cross-sectional view along the line II-II ′ shown in FIG. 3A. 4a is a perspective view showing a cable according to the invention. Figure 4b is a perspective view showing that the inner diameter is expanded by the expander self-shrink type cable connecting member of the present invention. Figure 4c is a perspective view showing that the guide pipe is fitted to the self-shrink type cable connection member of the linear connection member of the present invention. 4d is an attempt to show that the cable according to the invention is located inside the guide pipe. 4E is a perspective view showing that the cable according to the present invention is connected by a self-shrinkable cable connecting member which is a straight connecting member. 5 is a perspective view showing a self-shrinkable cable connecting member which is a termination member of the present invention.

First, the self-shrinkable cable connecting member of the present invention will be described. Further, the connecting member of the present invention may be a straight connecting member for connecting the cables in a straight line.

1 and 2, the self-shrinkable cable connecting member of the present invention has a connecting member body 100 that has a hollow shape and has a predetermined length. Then, the inner surface of the connector body 100 has a semiconducting layer 200 which is built in the inner circumference of the connector body 100 to expose the outer surface.

More specifically, the connecting member body 100 has an inner diameter that gradually narrows from the center to both ends thereof, and the cables 50 having the connecting ends 51 bound to each other are positioned therein, and are made of an elastic material. Is made of.

That is, as shown in FIGS. 1 and 2, the connector body 100 has a first inner diameter d1 and a central portion 110 having a predetermined length, and the first inner diameter from both ends of the central portion 110. an inclined portion 120 extending a predetermined length to have a second inner diameter d2 gradually smaller than (d1), and a grip portion 130 extending a predetermined length from the inclined portion 120 and having a third inner diameter d3. It consists of.

The connecting member body 100 may be made of any one of an EPDM or a liquid silicone rubber, which is an elastic material.

In addition, the semiconducting layer 200 may be embedded in the inner circumference of the grip unit 130.

In addition, the semiconducting layer 200 may be embedded in the inner circumference of the inclined portion 120 and the grip portion 130.

In addition, the semiconducting layer 200 may be installed in the inner circumference of the central portion 110.

Therefore, since the connection member body 100 is made of an elastic material, when the force is applied from the outside, it may be stretched to a predetermined size or a predetermined length.

On the other hand, the self-shrinkable cable connection unit of the present invention includes the connecting member body 100, is inserted into the connecting member body 100 to increase the inner diameter of the connecting member body 100 to the fifth inner diameter (d5). An expander 300 and a guide pipe 400 fitted inside the elongated connector body 100. The guide pipe 400 has a fourth inner diameter d4 smaller than the fifth inner diameter d5, and cables 50 may be introduced into the guide pipe 400.

More specifically, the expander 300 may be any device that can be introduced into one from the end of the connector body 100 to expand the connector body 100 to a predetermined size.

For example, the dilator 300 is inserted into the connector body 100 to be in close contact with the inner circumferential surface of the connector body 100, the locking members 310 and the cylinder 330 It consists of an extension shaft 320 for connecting. Therefore, when the extension shaft 320 is contracted by the driving of the cylinder 330, the catching members 310 are pulled, and thus the catching members 310 expand the connection body 100. . Therefore, the connection body 100 may be extended until the fifth inner diameter (d5).

As shown in FIGS. 3A and 3B, the guide pipe 400 is a hollow pipe having a fourth inner diameter d4 and having a predetermined length. The guide pipe 400 may be made of a plastic material.

In addition, the guide pipe 400 may be manufactured by making a plastic pipe 410 having a predetermined length in contact with each other to form a hollow pipe.

More specifically, the guide pipe 400 is made of a plastic line 410 having a predetermined length. Here, the fitting groove 411 is formed in one side portion of the plastic line 410 along the longitudinal direction of the plastic line 410, and the length of the plastic line 410 is formed at the other side portion of the plastic line 410. A fitting protrusion 412 fitted to the fitting groove 411 is formed along a direction, and as the fitting protrusion 412 is fitted into the fitting groove 411, a hollow pipe having a predetermined inner diameter may be formed. .

On the other hand, in the case of removing the guide pipe 400 from the interior of the tack member body 100, when pulling one end of the plastic line 410 toward the outside of the connection body 100, the plastic line 410 The fitting protrusion 412 inserted into the fitting groove 411 of the) is shortened by the length of the guide pipe 400 while being separated from the fitting groove 411, whereby the guide pipe 400 is the connection body 100 Can be removed gradually from the inside.

In addition, when the fitting groove 411 and the fitting protrusion 412 of the stripped plastic line 410 are combined with each other, the guide pipe 400 may be reassembled into a hollow pipe, and at this time, the guide pipe The inner diameter of 400 may vary.

Next, the operation and effects of the self-shrinkable cable connection member and the connection unit having the above-described configuration will be described with reference to FIGS. 4A to 4E as well as the cable connection method using them.

The cable connecting method of the present invention includes a first step of disposing the cables 50 electrically connected at both ends to penetrate the inside of the connecting member body 100, and allowing the connecting member body 100 to self-shrink. Both ends of the connector body 100 includes a second step of tightening both ends of the cables (50).

In the first step, as shown in Figure 4a, the cable 50 has a connecting end 51 is formed at one end thereof. Therefore, the connection ends 51 may be electrically connected to each other so that the cables 50 may be electrically connected to each other.

In this case, the diameters of the cables 50 may be identical to each other, or may be different from each other as shown in FIG. 4A. Here, one cable 50 may have a diameter of 'D1', and the other cable 50 may be a cable having 'D2', which is larger than the diameter of 'D1' (D1 <D2).

In this way, cables 50 that are electrically connected to each other are prepared.

Subsequently, as shown in FIG. 4B, the expander body 100 may be expanded to a predetermined size using the expander 300. At this time, the expander 300 extending the connection member body 100 may be inserted into the connection member body 100 to expand the connection member body 100 may be any device.

For example, the dilator 300 is inserted into the connector body 100 to be in close contact with the inner circumferential surface of the connector body 100, the locking members 310 and the cylinder 330 It consists of an extension shaft 320 for connecting. Therefore, when the extension shaft 320 is contracted by the driving of the cylinder 330, the catching members 310 are pulled, and thus the catching members 310 expand the connection body 100. . Therefore, the connection body 100 may be expanded until the fifth inner diameter d5.

As such, when the connection member body 100 is stretched to a predetermined size, the inner diameter thereof may extend to the fifth inner diameter d5.

As shown in FIG. 4C, the guide pipe 400 having the prepared fourth inner diameter d4 is inserted to penetrate the inside of the connecting member body 100 extended to the fifth inner diameter d5. That is, since the fourth inner diameter d4 of the guide pipe 400 is formed to be smaller than the fifth inner diameter d5, the guide pipe 400 may be inserted into the connection member body 100. .

Subsequently, as shown in FIG. 4D, the electrically coupled cables 50 may be inserted into the guide pipe 400.

Therefore, the binding portion corresponding to the position of the connection ends 51 of the cables 50 and both ends of the cable 50 may be inserted and positioned inside the guide pipe 400.

In the second step, as described above, when the cables 50 are positioned inside the guide pipe 400, the guide pipe 400 is removed from the connector body 100 as shown in FIG. 4E. Remove it.

At this time, the guide pipe 400 is made of a plastic line 410 having a predetermined length. Here, the fitting groove 411 is formed in one side portion of the plastic line 410 along the longitudinal direction of the plastic line 410, and the length of the plastic line 410 is formed at the other side portion of the plastic line 410. A fitting protrusion 412 fitted to the fitting groove 411 is formed along a direction, and as the fitting protrusion 412 is fitted into the fitting groove 411, a hollow pipe having a predetermined inner diameter may be formed. .

Therefore, when the guide pipe 400 is removed from the inside of the connecting member body 100, when one end of the plastic line 410 is pulled toward the outside of the connecting body 100, the plastic line 410 may be removed. The fitting protrusion 412 inserted into the fitting groove 411 is shortened by the length of the guide pipe 400 while being separated from the fitting groove 411, and thus, the guide pipe 400 of the connection body 100 Can be removed gradually from inside.

Subsequently, from the position at which the guide pipe 400 is removed, the connection body 100 may self contract.

Accordingly, the connecting member body 100 from which all the guide pipes 400 are removed is self-shrinkable, and thus, the grip 130 formed at both ends of the connecting member body 100 may grip both ends of the cables 50. Can be.

In this case, the semiconducting layer 200 in the inner circumference of the connecting member body 100 may contact the outer surfaces of the cables 50.

In addition, the semiconducting layer 200 built into both ends of the connecting member body 100, in particular, the inner circumference of the inclined portion 120 and the inner circumference of the grip portion 130 may be compressed on the outer surfaces of both ends of the cables 50. have.

Therefore, since the grip part 130 is self-contracted and compressed to the outer surfaces of both ends of the cables 50, foreign matter from the outside can be prevented from penetrating into the interior of the connection member body 100, and the rain water. Moisture, such as back can be prevented from flowing into the interior of the connection member body 100 to generate an electrical accident.

Meanwhile, referring to FIG. 5, another example of the self-shrinkable cable connecting member of the present invention will be described. Further, the connecting member of the present invention may be a termination connecting member for connecting the cables in a straight line.

As shown in FIG. 5, the self-shrinkable cable connecting member, which is a termination member of the present invention, has a connecting member body 100 ′ which has a hollow shape and has a predetermined length.

In addition, a semiconducting layer is formed in the inner circumference of the connector body 100 'such that its outer surface is exposed to the inside of the connector body 100'.

Although the semiconducting layer is not shown in FIG. 5, the internal conductivity of the semiconducting layer may be substantially the same as the self-shrinkable cable connecting member, which is the termination member described with reference to FIGS. 1 to 2.

In addition, in the cable connecting method using the self-shrinkable cable connecting member as the termination member, as described with reference to FIGS. 4A to 4E, both ends of the cable 50 are electrically connected to each other. And a second step of disposing the connecting member body 100 'so that both ends of the connecting member body 100' are tightened at both ends of the cables 50. It may include.

Accordingly, the cable connection method using the self-shrinkable cable connection member as the termination member shown in FIG. 5 may be substantially the same as the cable connection method using the self-shrinkable cable connection member which is the linear connection member shown in FIGS. 1 to 4E. .

1 is a perspective view showing a self-shrinkable cable connecting member which is a linear connecting member of the present invention.

2 is a cross-sectional view taken along the line II ′ shown in FIG. 1.

Figure 3a is a perspective view showing a guide pipe according to the present invention.

FIG. 3B is a cross-sectional view along the line II-II ′ shown in FIG. 3A.

4a is a perspective view showing a cable according to the invention.

Figure 4b is a perspective view showing that the inner diameter of the self-shrinkable cable connecting member of the present invention is expanded by the expander.

Figure 4c is a perspective view showing that the guide pipe is fitted to the self-shrinkable cable connecting member of the present invention.

4d is a perspective view showing that the cable according to the invention is located inside the guide pipe.

4E is a perspective view showing that the cable according to the present invention is connected by a self-shrinkable cable connecting member.

5 is a perspective view showing a self-shrinkable cable connecting member which is a termination member of the present invention.

** Description of symbols for the main parts of the drawing **

50: cable 51: connection end

100: connecting member body 110: the center portion

120: inclined portion 130: grip portion

200: semiconducting layer 300: expander

400: guide pipe 410: pipeline

411: fitting groove 412: fitting protrusion

Claims (18)

Cables having an inner diameter gradually narrowing from the center to both ends thereof and having different diameters in which the connecting ends are bound to each other are located, and are formed in a hollow shape made of liquid silicone rubber, and along the ends A connecting member body in which the thickness of the hollow is gradually thinned; And It is provided on the inner circumference of the connecting member body, and includes a semiconducting layer in the inner circumference of both ends of the connecting member body and the inner peripheral portion of the center of the connecting member so that one surface thereof is exposed to the interior of the connecting member body, Semiconducting layers in the inner periphery of both ends of the connecting member body is embedded in the connecting member body gradually along the central portion from the both ends, and formed to gradually open along both ends of the connecting member body at the center portion. A self-shrinkable cable connecting member. The method of claim 1, The connecting member body, A central portion having a first inner diameter and having a predetermined length, an inclined portion extending a predetermined length from both ends of the central portion to have a second inner diameter gradually smaller than the first inner diameter, a predetermined length extending from the inclined portion and a third inner diameter A self-shrinkable cable connecting member, comprising: a grip portion having a; 3. The method of claim 2, And the semiconducting layer is formed in the inner circumference of the grip portion. 3. The method of claim 2, And the semiconducting layer is formed in the inner circumference of the inclined portion and the grip portion. The method according to claim 3 or 4, And the semiconducting layer is formed in the inner circumference of the central portion. delete Cables having an inner diameter gradually narrowing from the center to both ends thereof and having different diameters in which the connecting ends are bound to each other are located, and are formed in a hollow shape made of liquid silicone rubber, and along the ends A connecting member body in which the thickness of the hollow is gradually thinned; A semiconducting layer provided on an inner circumference of the connector body, the one surface of which is insulated on both inner circumferences of both ends of the connector body and an inner circumference of the center of the connector body so that one surface thereof is exposed to the interior of the connector body; And It is made of a hollow shape that is inserted into the interior of the connection member body to penetrate the connection member body, and having a fourth inner diameter larger than the inner diameter, the cables having different diameters in which the connection ends are bound to each other, It includes a guide pipe for guiding the cables to be in close contact with the inner circumference of the connecting member body by sequentially being removed from the connecting member body by an external force, Semiconducting layers in the inner periphery of both ends of the connecting member body is embedded in the connecting member body gradually along the central portion from the both ends, and formed to gradually open along both ends of the connecting member body at the center portion. Self-shrinkable cable connection unit. The method of claim 7, wherein The connecting member body, A central portion having a first inner diameter and having a predetermined length, an inclined portion extending a predetermined length from both ends of the central portion to have a second inner diameter gradually smaller than the first inner diameter, a predetermined length extending from the inclined portion and a third inner diameter A self-shrinkable cable connection unit, comprising: a grip portion having a grip portion; The method of claim 8, And the semiconducting layer is built in the inner circumference of the grip portion. The method of claim 8, And the semiconducting layer is formed on the inner circumference of the inclined portion and the grip portion. The method according to claim 9 or 10, And the semiconducting layer is built in the inner circumference of the central portion. delete The method of claim 7, wherein The guide pipe is made of a plastic line having a certain length, One side portion of the plastic line is formed with a fitting groove along the longitudinal direction of the plastic line, the other side of the plastic line is formed with a fitting protrusion fitted to the fitting groove along the longitudinal direction of the plastic line, Self-shrink type cable connection unit, characterized in that to form a hollow pipe having a predetermined inner diameter as the fitting projection is fitted in the fitting groove. Cables having an inner diameter gradually narrowing from the center to both ends thereof and having different diameters in which the connecting ends are bound to each other are located, and are formed in a hollow shape made of liquid silicone rubber, and along the ends A connecting member body in which the thickness of the hollow is gradually thinned; And a semiconducting layer provided at an inner circumference of the connecting member body, the semiconducting layer being insulated at both ends of the connecting member body and an inner circumference of the connecting member body so that one surface thereof is exposed to the inside of the connecting member body. The semiconducting layer, which is built in, is embedded in the connecting member body gradually along the center portion from the both ends, and expands the self-shrinkable cable connecting member which is formed to gradually open along both ends of the connecting member body with the center portion as a boundary. Expand the inner diameter of the connecting member body to a fifth inner diameter, Inserting a guide pipe having a fourth inner diameter inside the expanded connecting member body, In the guide pipe, both ends are electrically connected to each other, and cables having different diameters are positioned including the tied portion, Sequentially removing the guide pipe from the connecting member body, The connector connecting body characterized in that the self-shrink to be in close contact with the outer periphery of the cable sequentially in the direction of removal. delete delete delete The method of claim 14, And the five inner diameters are expanded using the expander to be larger than the four inner diameters.

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