KR100882612B1 - Distribution connector for underground distribution line - Google Patents

Abstract

A distribution connector for an underground distribution line is provided to enhance compatibility between a bushing terminal and a connection terminal by easily attaching and detaching connection terminals of various standards to and from a bushing terminal. A bushing device(100) includes an engaging unit(140) which is elastically supported in one direction and an elastic member(130), and a connection device(200) includes plural engaging grooves(211b) and caps(240). The plural engaging grooves are formed at a first reception unit(211) of a case(210), and a connection terminal(230) is supported as the caps are engaged with the first reception unit. An opener(300) releases the connection between the bushing device and the connection device.

Description

Underground type high voltage distribution line connector {Distribution Connector for Underground Distribution Line}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector, and more particularly, to an underground buried high voltage distribution line connector, which makes it easy to electrically connect a wire of high voltage to a bushing terminal of a distributor.

As is well known, a connector is for connecting or discharging an electric wire to a distributor installed in the ground or on the ground, and a connector composed of a bushing provided in the distributor and a connection device connected to the bushing is called a connector.

As shown in FIG. 1, the conventional connector includes a bushing device 100 ′ and a connecting device 200 ′.

The bushing device 100 'according to the prior art is composed of a bushing housing 110' and a bushing terminal 120 '.

The bushing housing 110 ′ is an insulating material and is fixed to protrude to the outside of the distributor B in a conical shape.

The bushing terminal 120 'is formed of a conductive material, is electrically connected to an electric circuit provided in the distributor B, and the coupling groove 121' on which the first screw thread a1 'is formed is bushing housing. It is installed in the bushing housing 110 'to protrude to the outside of the (110').

The connection device 200 'includes a case 210', a wire connection member 220 ', a connection terminal 230' and a cap 240 '.

Here, the case 210 'is formed of an insulating material such as synthetic resin, and has a first accommodating portion 211' having a first passage T1 'through which the bushing terminal 120' is inserted at one end thereof. ) And a second accommodating portion 212 ′ having a second passage T2 ′ which communicates perpendicularly to the first passage T1 ′ and opens to the outside, has a 'T' shape as a whole. A mounting groove 211a ′ is formed at an upper portion of the first passage T1 ′ in which the first passage T1 ′ and the second passage T2 ′ communicate with each other.

On the other hand, the wire (W) is a power cable of a special high voltage, it is made of a conductive wire (w1) and a sheath (w2) for covering the outer surface of the conductive wire (w1) with an insulating material to prevent leakage of current to the outside.

The wire connecting member 220 'is a conductor, and a first of the first accommodating part 211' that intersects the second passage T2 'so that the connecting terminal connecting portion 221' is fitted into the seating groove 211a '. The wire fixing part 221 'disposed in the passage T1' and fixing the conductive wire w1 is formed under the connection terminal connecting portion 221 'so that the second passage T2 of the second accommodating portion 212' is formed. ') And detachably disposed.

The connection terminal 230 'is a conductor, and one end has a coupling protrusion 231a' having a first screw thread a1 'formed on an outer circumferential surface thereof, and a second screw thread a2' formed on an inner circumferential surface of the other end thereof. It penetrates through the connection terminal connecting portion 221 'of 220' and is rotatably and detachably fixed to the first passage T1 'of the first accommodating portion 211'. The connection terminal 230 ′ inserted into the first passage T1 ′ of the first accommodating part 211 ′ is fixed through the wire connecting member 220 ′, and then a second screw thread a2 formed at the other end. '), The first screw thread a1' formed in the coupling groove 121 'of the bushing terminal 120' inserted into the first passage T1 'of the first accommodating portion 211'. ) Is coupled to the thread and the connection terminal 230 ′ and the bushing terminal 120 ′ are fixed and energized at the same time.

The cap 240 'is made of an insulating material, and the plug 240' is inserted into the first accommodating portion 211 ', or the wire W and the bushing terminal 120' are provided to check whether there is a voltage. 1 is detachably fitted to the other end of the receiving portion 211 '.

However, in the conventional connector configured as described above, since the case 210 'and the connecting terminal 220' are separated, the connecting terminal 220 'is completely connected to and fixed to the bushing terminal 120'. 220 ') and the bushing terminal (120') is unstable to be made in a short time, because it is screwed together, the time required for fastening and disconnection was relatively long.

In addition, the conventional connector configured as described above is troublesome because a separate tool such as a special driver having low insulation and low thermal conductivity is required to fasten and detach the bushing terminal 120 'and the connection terminal 220'.

On the other hand, the conventional connector configured as described above is difficult to replace because the bushing terminal 120 'is installed integrally with the distributor (B). Therefore, there is a problem of using a dedicated connection terminal 230 ′ engaged with the bushing terminal 120 ′ among the connection terminals 230 ′ having various standards, and thus compatibility is required.

The present invention has been made to solve the above problems, an object of the present invention is to provide an underground buried extra-high voltage distribution line connector that can be easily fastened and separated from the connection terminal of various standards.

The present invention for solving the above problems, the bushing housing of the insulating material protruding to the outside of the distributor, the bushing terminal of the conductor material which is installed in the bushing housing and protrudes to the outside, the portion of the bushing terminal protruding to the outside A bushing device having an elastic member of an insulating material surrounding an outer circumferential surface, and a hanger having one end fixed to the bushing housing rotatably and the other end being elastically supported in one direction via a spring and having a locking protrusion formed thereon; The first passage penetrating in the horizontal direction and the engaging groove engaging with the engaging projection on the outer peripheral surface of one end is formed, the first receiving portion in which the bushing terminal is inserted into the first passage on the engaging groove side, and communicates perpendicularly to the first passage to the outside A case made of an insulating material made of a second accommodating portion having an open second passage, and a connection terminal connecting portion disposed in the first passage of the first accommodating portion and a lower portion of the connecting terminal connecting portion to be electrically engaged with the electric wire and being connected to the second accommodating portion. A conductor connecting member made of a conductor fixing member detachably fixed to the second passage and a connecting terminal connecting portion of the conductor connecting member, which is detachably fixed to the first passage of the first accommodating portion, A connection terminal made of a conductor material electrically connected with the bushing terminal inserted into the first passage, and detachably fixed to the other end of the first passage of the first accommodating portion so that the connecting terminal does not retreat. Occupied by the connection device with a cap of insulating material; It consists of a body which is rotatably fixed while surrounding the bushing housing protruding to the outside of the distributor, and an opener having an opening protrusion projecting to the outside of the main body to be engaged with the hook to release the engagement of the bushing device and the connecting device.

According to the present invention, it is possible to easily connect and disconnect connection terminals of various standards to the bushing terminals, thereby reducing the work time, and improving the compatibility between the bushing terminals and the connection terminals, and thus the performance is expected to be improved.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

2 is a cross-sectional view of the underground buried extra-high voltage distribution line connector according to the present invention, Figure 3 is a partial partial perspective view of the bushing device and the connection device according to the present invention, the underground buried extra-high voltage distribution line connector according to the present invention is a bushing device 100, a connection device 200, and an opener 300.

The bushing device 100 according to the present invention includes a bushing housing 110, a bushing terminal 120, an elastic member 130, a hanger 140, and a spring 150.

The bushing housing 110 is made of an insulating material, is formed in a cylindrical shape, is fixed to protrude to the outside of the distributor (B). The guide groove 111 is formed on the outer circumferential surface of the bushing housing 110 protruding to the outside of the distributor B.

The bushing terminal 120 is made of a conductor material, one end of which is electrically connected to an electric circuit built in the distributor B, and the other end of which is fixedly installed to protrude out of the bushing housing 110. .

The elastic member 130 is a material having elasticity and insulation at the same time, such as synthetic rubber, is formed to surround the circumferential surface of the bushing terminal 120 protruding out of the bushing housing 110.

The hanger 140 is made of an insulating material and is disposed in a pair so as to face each other, so that one end is rotatably fixed to the bushing housing 110. In addition, the hanger 140 is disposed outside the elastic member 130, and a receiving groove 142 for receiving the compressed and expanded elastic member 130 is formed to face the elastic member 130. In addition, the other end of the hanger 140, the locking projection 141 having a first inclined surface 141a is enlarged toward one end is formed to protrude in one direction toward the bushing terminal 120, through the spring 150 It is supported in one direction toward the bushing terminal 120.

In addition, the connection device 200 according to the present invention includes a case 210, a wire connection member 220, a connection terminal 230, and a cap 240.

The case 210 includes a first accommodating part 211 and a second accommodating part 212. The first accommodating part 211 has a first passage T1 through which the bushing terminal 120 is inserted into and inserted into the horizontal direction. In addition, the second accommodating part 212 has a second passage T2 formed in the vertical direction to communicate with the first passage T1. In addition, the mounting groove 211a is formed in the first accommodating portion 211 of the first passage T1 in which the first passage T1 and the second passage T2 communicate with each other. However, the case 210 according to the present invention has a plurality of engaging grooves 211b engaged with the engaging protrusion 141 on the outer circumferential surface at one end of the first accommodating part on the side of which the bushing terminal 120 is inserted and inserted in the longitudinal direction. It is formed continuously. In addition, a third screw thread a3 is formed along the inner circumferential surface at the other end of the first passage T1 of the first accommodating portion 211. Here, the locking groove 211b may be applied to various shapes that can be engaged with the locking protrusion 141. For example, as shown in FIG. 2, the second inclined surface 211b1 is formed on the outer circumferential surface of the first accommodating portion 211 to decrease in diameter toward the inside, and the third inclined surface 211b2 is formed as the second inclined surface ( 211b1) may be formed to have a sawtooth shape by extending the diameter outward toward the other end.

The wire connecting member 220 is a conductor and is connected to the first passage T1 of the first receiving portion 211 crossing the second passage T2 so that the connecting terminal connecting portion 221 is fitted into the seating groove 211a. And a wire fixing part 221 for fixing the conductive wire w1 is formed under the connection terminal connecting part 221 and disposed in the second passage T2 of the second accommodating part 212 to be detachably disposed. .

The connection terminal 230 is formed of a conductive material, and is inserted into and detachably fixed to the first passage T1 of the first accommodating part 211 through the connection terminal connecting portion 221 of the wire connecting member 220. A coupling protrusion 231 is formed to engage with the coupling groove 121 of the bushing terminal 120 inserted into the first passage T1 of the first accommodation portion 211, and is electrically connected to and fixed to each other. In the present embodiment, the connecting terminal 230 and the bushing terminal 120 is formed to take the shape of the recessed portion to be engaged with each other, but of course it can be modified into various shapes that can be electrically connected to each other.

In addition, the cap 240 according to the present invention is an insulating material, and has a fitting protrusion 241 having a third screw thread a3 engaged with the third screw thread a3 of the first accommodating part 211. Therefore, when the fitting protrusion 241 is screwed and fixed to the first accommodating part 211, the fitting protrusion 241 contacts the other end of the connecting terminal 230 so as to prevent the connecting terminal 230 from being retracted.

The opener 300 includes a main body 310 and an opening protrusion 320. The main body 310 is formed in a ring shape, and is rotatably fitted to the guide groove 111 of the bushing housing 110 protruding to the outside of the distributor B. In addition, the opening protrusion 320 protrudes to have a gentle fourth inclined surface 321 to the outside of the main body 310, and when the main body 310 is rotated, the fourth inclined surface 321 abuts against the hanger 140. The other end of the hanger 140 is pushed to the outside. Therefore, the opening protrusion 320 releases the engagement between the bushing device 100 and the connecting device 200 and also serves as a handle. Meanwhile, as illustrated in FIG. 3, the fourth inclined surface 321 may be gently curved, and although not shown in the drawing, the fourth inclined surface 321 may be formed to be obliquely inclined, and the hanging method 140 may be opened to the outside. It can be deformed into various shapes.

The operation of the underground buried extra-high voltage distribution line connector configured as described above will be described in detail with reference to FIGS. 2 and 4 to 9.

As shown in FIG. 2, the wire connecting member 220 to which the electric wire W is fixed is inserted into the second passage T2 of the second accommodating part 212, and the wire connecting member 220 and the connection terminal are provided. The connection terminal 230 is disposed in the first passage T1 of the first accommodating part 211 to penetrate the upper end of the wire connecting member 220 so that the 230 is energized. Then, the cap 240 is screwed to the other end of the first passage T1 of the first accommodating part 211 so as to be in contact with the connection terminal 230 so that the connection terminal 230 is not retracted.

And, as shown in FIG. 4, after the coupling groove 121 of the bushing terminal 120 and the coupling protrusion 231 of the connection terminal 230 are disposed horizontally, and push the connection device 200 When the first inclined surface 141a of the locking projection 141 contacts the outer circumferential surface of the first accommodating portion 211, the spring 150 is shot and the latch 140 is rotated up and down, respectively.

At this time, as shown in Figure 5, the opening protrusions 320 of the opener 300 are disposed between the latch 140, respectively, does not affect the up and down rotation of the latch 140.

Subsequently, when the connecting device 200 is continuously pushed, as shown in FIG. 6, the latches 140 are rotated up and down by springs 150 that support the latch 140 in one direction. One end of the first accommodating part 211 comes into contact with the elastic member 130.

Subsequently, as shown in FIG. 7, when the connection device 200 is pushed as far as possible, the elastic member 130 in contact with one end of the first accommodating part 211 is compressed and expanded, thereby coupling the bushing terminal 120. The groove 121 is closely connected to the coupling protrusion 231 of the connection terminal 230. In addition, since the locking protrusion 141 of the locking stand 140 is engaged with the locking groove 211b, the locking protrusion 140 is engaged with the bushing terminal 120 by fastening the connecting device 200 to the bushing device 100. The connection state of the contact terminal 230 is maintained continuously.

On the other hand, when you want to separate the fastening the bushing device 100 and the connection device 200, as shown in Figure 8 and 9, by rotating the opener 300 in one direction, of the opening projection 320 The catch 140 is brought into contact with the fourth inclined surface 321 to be rotated up and down, so that the catch 140 is opened, and the compressed elastic member 130 is also recovered. At this time, by pulling the connecting device 200 to the rear, the bushing device 100 and the connecting device 200 are separated and the electrical connection between the bushing terminal 120 and the connecting terminal 230 is released.

The underground buried extra-high voltage distribution line connector according to the present invention is configured as described above, and after the connecting terminal 230 and the bushing terminal 120 are disposed coaxially without a tool, the connecting device (for the bushing device 100) ( Only by pushing the 200, the connection device 200 is fastened to the bushing device 100 and energized so that the convenience of work is expected to be improved. In addition, the connection between the connection terminal 230 and the bushing terminal 120 is made in a short time, there is an advantage that the working time is shortened.

In addition, the underground buried special high-voltage distribution line connector according to the present invention, when the holding projection 141 is rotated in one direction while the opener 300 is rotated while the engaging stand against the fourth inclined surface 321 of the opening projection (320) The 140 is opened up and down along the fourth inclined surface 321, so that the separation of the bushing device 100 and the connecting device 200 is also easy and quick.

In addition, the underground buried extra-high voltage distribution line connector according to the present invention, the degree of swelling of the elastic member 130 and the locking groove 211b to hang the position of the locking projection 141 for fixing the connection device 200 When properly adjusted, the bushing terminal 120 and the connection terminal 230 are electrically connected, so that the compatibility of the bushing terminal 120 and the connection terminal 230 may be improved.

1 is a schematic side cross-sectional view of a connector of the prior art,

2 is a side cross-sectional view of the underground buried extra-high voltage distribution line connector according to the present invention;

Figure 3 is a partially exploded perspective view of the case according to the bushing device and the connection device for the present invention,

Figure 4 is a side cross-sectional view showing an operating state of the underground buried extra-high voltage distribution line connector according to the present invention,

5 is a cross-sectional view taken along line A-A of FIG. 4;

6 to 8 are side cross-sectional views showing the operating state of the underground buried extra-high voltage distribution line connector according to the present invention,

FIG. 9 is a schematic cross-sectional view taken along line B-B of FIG. 8.

Explanation of the main parts of the accompanying drawings

100,100 ': Bushing device, 110,110': Bushing housing,

111: guide groove, 120, 120 ': bushing terminal,

121,121 ': engaging groove, 130: elastic member,

140: hanger, 141: hanger,

141a: first slope, 142: receiving groove,

150: spring, 200,200 ': connection device,

210,210 ': case, 211,211': first accommodating part,

211a, 211a ': settling groove, 211b: locking groove,

211b1: second slope, 211b2: third slope,

212,212 ': second receiving portion, 220,220': wire connecting member,

221 ', 221: connection terminal connection, 222', 222: wire fixing,

230,230 ': connection terminal, 231,231': coupling protrusion,

240,240 ': Cap, 241: Fitted,

300: Opener, 310: the body,

320: opening projection, 321: fourth slope,

B: distributor, T1: first passage,

T2: Second passage, W: Wire,

w1: lead wire, w2: coating,

a1 ': first thread, a2': second thread,

a3: third screw thread.

Claims (1)

Bushing housing 110 of insulating material protruding to the outside of the distributor (B), the bushing terminal 120 of the conductor material is installed in the bushing housing 110 and protrudes to the outside, and protrudes out of the bushing terminal 120 Elastic member 130 of the insulating material surrounding the outer circumferential surface of the portion and one end is rotatably fixed to the bushing housing 110, the other end is elastically supported in one direction via the spring 150, the locking projection 141 is formed Bushing device 100 having a hanger 140; The first passage T1 penetrates in the horizontal direction and a locking groove 211b engaging with the locking protrusion 141 is formed on the outer circumferential surface of one end thereof, but the bushing terminal 120 is disposed in the first passage T1 on the locking groove 211b side. ) Is a case made of an insulating material including a second accommodating portion 212 formed with a first accommodating portion 211 into which the crest is inserted and a second passage T2 communicating with the first passage T1 perpendicularly and opening to the outside. 210 and a lower portion of the connection terminal connecting portion 221 and the connection terminal connecting portion 221 disposed in the first passage T1 of the first accommodating portion 211 to be electrically engaged with the wire W and to have a second portion. A conductor connecting member 220 made of a conductor material made of an electric wire fixing part 222 detachably fixed to the second passage T2 of the receiving portion 212, and a connecting terminal connector 221 of the electrical wire connecting member 220. ) Is removably fixed to the first passage T1 of the first accommodating part 211 and electrically engaged with the bushing terminal 120 inserted into the first passage T1 of the first accommodating part 211. Contact of the connected conductor material A connecting device having a terminal 230 and an insulating cap 240 that is detachably fixed to the other end of the first passage T1 of the first accommodating part 211 to support the connecting terminal 230 so as not to retreat. 200; The main body 310 rotatably fixed while surrounding the bushing housing 110 protruding to the outside of the distributor B, and protrudes to the outside of the main body 310 to be engaged with the hanger 140 so that the bushing device 100 and A buried special high voltage distribution line connector comprising an opener 300 having an opening protrusion 320 for releasing engagement of the connecting device 200.

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