KR101123909B1 - Distribution box for underground distribution line - Google Patents

Abstract

PURPOSE: An outdoor distributing box for power distribution between underground wire and lead in wire is provided to install a wire connection unit on a location fixing plate, thereby easily connecting underground wire and lead in wire. CONSTITUTION: A distributing box main body(100) includes a door unit(110) which is installed to be able to open and close by hinge. A location fixing plate(200) includes a plurality of fixing grooves(210) formed along the longitudinal direction. A base(300) comprises a base body with a rectangular shaped and a cover(320) installed on both ends of the base body. A wire connection device(400) includes a connection body of metal or synthetic resin material, an insulating material, a conducting wire connection unit, and a clamping bracket.

Description

Distribution box for underground distribution line for distribution between underground and incoming cables

The present invention relates to an outdoor switchboard for distribution between underground cables and incoming cables.

In general, power lines are installed in the telephone poles or buried in the ground to supply electricity. The ground and aerial construction method is more economical than construction in the ground in consideration of constructability, required construction cost, and construction period. There is an advantage that can be simplified, but the building is very close to the dense place, such as downtown, the installation is quite difficult disadvantages, when installed in the underground or in the case of demanding high current in the city.

In addition, since most wires are simply wired, there are frequently problems in that the joints between the wires are easily shorted by pulling or connecting the wires.

In addition, in the case of the method of embedding in the underground, when connecting the underground wire and the incoming wire is twisted mutually after stripping the coating wire of the wire, and the outer surface of the connected portion to protect the insulation tape wrapped, this work method Silver wire is possible when the wire is small, but when the wire is thick, it is difficult to install, so it is easy to connect and dismantle underground and incoming wires while protecting the connection state between underground and incoming wires installed in the switchboard. There is an active research on the outdoor switchgear with a new structure.

The present invention has been made in order to solve the above problems, it is possible to easily and easily connect the underground wire and the incoming wire drawn into the inside of the distribution panel main body, regardless of the location of the wire conveniently connected via the wire connector It is possible to fix the position, and it is possible to freely change the position and length of the transmission line when the external force occurs in the transverse direction, so that the connection between the transmission lines can be prevented from being shorted by the external force. The purpose is to provide.

The present invention for achieving the above object,

The switchgear body which is installed outdoors with a door part installed to be opened and closed via a hinge:

Plate for fixing the position of the insulating material having a plurality of fixing grooves formed along the longitudinal direction, which is installed through the fastening member inside the switchboard body:

A rectangular base body having a guide groove open at both ends and a hook portion formed at a bottom thereof, the base body being detachably installed in the fixing groove of the position fixing plate via the hook portion; Base consisting of a cover which is installed at both ends of the base body via the fastening means:

It is divided into a first semi-circular portion and a second semi-circular portion each having a semi-circular cross section, and are formed to be folded and developed through a hinge installed on an outer surface thereof, and an upper surface of the base body via a connection portion formed on an outer surface of the first semi-circular portion. It is installed in, and the interior of the hollow metal or synthetic resin connector body; An insulating material formed on the inner surface of each of the first and second semicircular parts, the semi-circular first elastic body and a second elastic body installed on both ends of the first elastic body and surrounding and fixing the covering of the underground wire and the incoming wire; Equipped with a fixed portion formed on the outer surface, and a fixed protrusion formed on both ends of the inner surface, is fixed to the first elastic body via the fixing portion, the fixing projections of the underground wire and the incoming wire respectively inserted through both ends of the connector body A conductor connector of a metal material having a semicircular cross section for pressing and fixing through the medium to be electrically connected to each other; Cable connector with clamping bracket installed in the connector body to clamp the folding and unfolding of the 1st and 2nd semicircular parts:

A coupling protrusion having one end movably inserted into the guide groove of the base body and the other end protruding upward; Wire support, which is installed on the other end of the engaging projection and composed of fixing pieces for elastically pressing the covering of the underground wire and the incoming wire, respectively:

Inserted into the guide groove is characterized in that it comprises a spring for supporting the wire support in one direction.

According to a preferred embodiment of the present invention, by installing a position fixing plate in the interior of the switchgear body, and by mounting a wire connector provided with the wire connector and the wire support to the installed position fixing plate, and easy and simple underground cable Not only can the wires be connected, but the wires can be neatly wired inside the switchboard body.

In addition, the underground wires and the incoming wires electrically connected to the wire connectors are fixed through the wire supports installed on the base so that they can be moved together when the external force in the transverse direction is applied to the underground wires and the incoming wires. As a countermeasure, the transmission of forces to the interconnected portions of the underground wires and the incoming wires can be canceled as much as possible to minimize the disconnection of the underground wires and the incoming wires.

In addition, it is very convenient to connect and disconnect the underground cable and the incoming cable inserted through both ends of the wire connector, and it is very convenient.The underground cable and the incoming cable are fixed by interposing the underground cable and the incoming cable. Not only can the connection between the incoming wires be maintained steadily, but the cover of the underground wire and the incoming wire is hermetically wrapped and secured through the second elastic body, thereby preventing the ingress of water from the outside. .

1 is a combined perspective view of an outdoor switchgear for distribution between underground cables and incoming cables according to the present invention.
2 is an exploded perspective view of an outdoor switchboard for distribution between underground cables and incoming cables according to the present invention.
Figure 3 is an exploded perspective view showing the main portion separately taken from the outdoor switchboard for the distribution between the underground wire and the incoming wire according to the present invention.
Figure 4 is a perspective view showing a separate wire connector in the outdoor switchboard for the distribution between the underground wire and the incoming wire according to the present invention.
5 is a view showing the operation relationship of the outdoor switchboard for the distribution between the underground cable and the incoming cable in accordance with the present invention.

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

In describing the present invention, when it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted.

1 to 3, the outdoor switchboard for the distribution between the underground cable and the incoming wire according to the present invention, the switchboard body 100, the position fixing plate 200, the base 300, the wire connector 400 , The wire support 500, the spring 600, and connects the underground wire (1) and the incoming wire (1 ') inside the switchboard body (100).

The switchboard main body 100 is to be installed outdoors, the overall shape is a rectangular shape, the inside is opened to the front, the front is opened through the hinge to close the opened portion to the door portion 110 Is installed.

The positioning plate 200, the overall shape is a rectangular shape, the material is a synthetic resin or metal, mounting holes (not specifically shown) are formed on both sides of the positioning plate 200 to mediate the bolt Furnace is fixed inside the switchboard body 100.

In the present embodiment, the fixing groove 210 of the recess portion is formed at equal sides along the longitudinal direction on the side of the position fixing plate 200, the upper surface is opened, the base 300 to be described later as the opened upper surface Hook part 312 of) is inserted and fixed.

For reference, in the method of fixing the base 300 to the fixing groove 210 of the position fixing plate 200, the base 300 is disposed in the longitudinal direction of the fixing groove 210, the base 300 In the state in which the hook portion 312 is inserted into the fixing groove 210 is fixed by rotating the base 300 clockwise or counterclockwise. Disassembly can be done in reverse order.

The base 300 is composed of a rectangular base body 310 detachably installed on the position fixing plate 200, and a cover 320 is installed on both ends of the base body 310 via fastening means. .

In particular, the base body 310 has guide grooves 311 formed along the inner longitudinal direction and open at both ends, and a hook portion 312 formed at the bottom thereof. Here, the guide groove 311 serves to guide the wire support 500 to be described later, the hook portion 312 is detachably fixed to the fixing groove 210 of the position fixing plate 200. The cover 320 has a function of preventing the separation of the wire support 500 is inserted into the guide groove 311 to be movable.

3 and 4, the wire connector 400 is composed of a connector body 410, an insulating material 420, a conductive wire connector 430, a clamping bracket 440, both ends of the wire connector 400 The underground wires 1 and the incoming wires 1 'composed of the conductive wires 1a and the covering wires 1b respectively inserted therebetween are electrically connected to each other.

The connector body 410 is a known hollow tube made of a metal or synthetic resin material, in the present embodiment is divided into a first semi-circular portion 411 and a second semi-circular portion 412 having a semi-circular cross-section, Underground wires are formed to be folded and deployable through the hinge is installed, and installed on the upper surface of the base body 310 via the connecting portion (411a) formed on the outer surface of the first semi-circular portion (411) (inserted inward respectively) 1) and the conductor wire 1a and the covering wire 1b of the lead wire 1 'to protect the underground wire 1 and the lead wire 1' from external forces.

In addition, the connector body 410, that is, the first semi-circular portion 411 and the second semi-circular portion 412, the hook 441 and the fastening portion 442 constituting the clamping bracket 440 to be described later, respectively It is provided to interrupt the folding and unfolding of the first and second semi-circular portions 411 and 412.

The insulating material 420 is a known synthetic rubber, and is composed of a semi-circular first elastic body 421 and a second elastic body 422 provided at both ends of the first elastic body 421. The inner surface of the first semi-circular portion 411 and the second semi-circular portion 412 is fixed by heat fusion.

On the inner surface of the first elastic body 421, the conductive wire connector 430 to be described later is fixed through the fixing part 431. Particularly, in the case of the first elastic body 421, it is possible to support it so that it can be firmly fixed and fixed when pressurizing the conductor 1a of the underground wire 1 and the incoming wire 1 ′ through the conductor connector 430. It is preferable to form a synthetic rubber material that can be accommodated elastically.

On the other hand, the second elastic body 422 is relatively softer than the first elastic body 421, so that the second elastic body 422 covers the cover 1b of the underground wire 1 and the incoming wire 1 '. When wrapped, the air pressure is more tightly compressed between the outer surface of the sheath 1b and the inner surface of the second elastic body 422 while being more compressed than the first elastic body 421, thereby preventing the inflow of water from the outside. Therefore, it is possible to prevent accidents due to electric short circuit due to inflow of infiltration water.

Furthermore, in the case of the insulating material 420, unlike the connector main body 410, the parts in contact with each other are cut in a diagonal line rather than horizontal, which is connected to the underground wire (1) and the incoming wire (1 ') inserted into the connection main body ( 410 and the first elastic body 421 and the conductive wire connector 430 when pressurized through the medium due to the thickness of the ground wire (1) and the incoming wire (1 ') is not tight to each other and finely open to generate a gap, As the incised portion of the gap generated in this way is compressed, the inflow of infiltration water that may flow into the gap is blocked.

The conductive wire connector 430 is provided with a fixing part 431 formed on the outer surface and a fixing protrusion 432 formed at both ends of the inner surface, and installed on the inner surface of the first elastic body 421 via the fixing part 431. It is a metal body which has a semicircular cross section. Here, the fixing projection 432 is inserted into the inner side of the conductive wires (1a) that are in contact with each other to function to fix so that the disconnection state is not released.

In the present embodiment, the wire connector 430 is insert-molded in the first elastic body 421 via a fixing part 431 having a T-shaped cross section, which is only one embodiment to the last, and as necessary It can be installed by various known methods.

As described above, the clamping bracket 440 is a known coupling tool for intercepting the folding and unfolding of the first and second semi-circular portions 411 and 412, and the hook 441 is installed on the outer surface of the first semi-circular portion 411. ) And a fastening part 442 installed on the outer surface of the second semi-circular part 412.

The installation position of the hook 441 and the fastening part 442 can be modified as much as necessary.

Since the clamping bracket 440 is already well known, a detailed description thereof will be omitted.

One end of the wire support 500 is movably inserted into the guide groove 311 of the base body 310, the other end of the coupling protrusion 510 protruding upward, and the other end of the coupling protrusion 510. And a fixing piece 520 for elastically pressing the sheath 1b of the underground wire 1 and the incoming wire 1 '.

The wire support 500 is preferably formed of a synthetic resin material having an insulating function.

In the present embodiment, the fixing piece 520 has a tubular shape as a whole, and the upper part is opened, and the underground wire 1 and the incoming wire 1 'can be detachably fixed through the opened part. Its installation and removal is very easy.

The spring 600 is a known carcass means, is inserted into the guide groove 311 in the present embodiment serves to support the wire support 500 in one direction.

According to this embodiment, when the external force in the transverse direction is applied to the underground wire (1) and the incoming wire (1 ') interconnected and fixed to the wire support 500, the wire support 500 is a guide While moving along the groove 311 to prevent the short circuit of the underground wire (1) and the incoming wire (1 ') electrically interconnected via the wire connector 400, when the aforementioned external force disappears, it is compressed and restored Underground wire (1) and the incoming wire (1 ') and the wire support 500 holding the fixed by the spring 600 is restored to the original state, there is an advantage that can always maintain the initial installation state.

Referring to the operation of the present invention made of the configuration as described above are as follows.

Referring to FIG. 5, the base 300 is disposed in the fixing groove 210 of the position fixing plate 200 installed through the fastening means inside the switchboard main body 100, and The hook portion 312 is inserted into the fixing groove 210, and then the base 300 is fixed by rotating in a clockwise or counterclockwise direction.

In the state where the base 300 is fixed to the position fixing plate 200 as described above, the first semicircular portion 411 and the second semicircular portion 412 of the connector body 410 are rotated about the axis of the hinge. To expand it.

Next, the conductive wire 1a of the underground wire 1 and the incoming wire 1 'to be connected to each other is connected to the inner surface of the first semicircular portion 411 by the insulating material 420. The ground wire 1 and the lead wire 1a of the ground wire 1 and the lead wire 1 'are placed in the inner surface and the ground wire 1 and the lead wire 1' of the lead wire 1 'are brought into close contact with each other. The second semicircular portion 412 is rotated to be wrapped by the second semicircular portion 412.

As described above, when the second semicircular portion 412 is rotated to surround the underground wire 1 and the incoming wire 1 ′, the fixing protrusion 432 of the conductive wire connector 430 is inserted into the outer surface of the conductive wire 1a. (Crude) while biting the conductive wire (1a) of each underground wire (1) and the incoming wire (1 ') is electrically interconnected, the covering (1b) of the underground wire (1) and the incoming wire (1') As the second elastic body 422 is compressed, the airtight seal is sealed between the outer surface of the sheath 1b and the inner surface of the second elastic body 422.

When the first semi-circular portion 411 and the second semi-circular portion 412 is folded through the hinge to form a circle, the first semi-circular portion 411 and the first semi-circular portion 412 by using a clamping bracket 440 composed of a hook 441 and the fastening portion 442 The semi-circular portion 411 and the second semi-circular portion 412 is fixed so as not to open.

As described above, the underground wire 1 and the incoming wire 1 'are interconnected through the wire connector 400, and then the underground wire 1 and the incoming wire 1' exposed to both ends of the wire connector 400 are exposed. ) Is inserted into and fixed to the fixing piece 520 of each wire support 500.

At this time, each of the underground wire 1 and the incoming wire (1 ') is preferably provided on the fixing piece 520 of the wire support 500 in a bent state to have a sufficient margin.

The reason for the installation as above is that when the underground wire 1 and the incoming wire 1 'are subjected to an external force in the horizontal direction, the underground wire 1 and the incoming wire 1' are connected to each other. This is to prevent as much as possible from being released.

For reference, when the release state is to be released for maintenance, the reverse order of the above method can be easily and simply detached.

After the installation as described above, the door 110 may be closed.

On the other hand, in the state where the underground cable 1 and the lead wire 1 'is installed through the outdoor switchboard according to the present invention, the underground wire 1 and the lead wire 1' in the transverse direction When receiving, the underground wires 1 and the incoming wires 1 ', which are bent with sufficient margin, are extended in the direction of the acting force.

In more detail, the wire support 500 holding the underground wire 1 and the incoming wire 1 ′ is moved along the guide groove 311 of the base 300, and thus the underground wire 1. The wires 1 'are naturally stretched, and the springs 600 which are installed in the guide grooves 311 and support the wire support 500 in one direction are moved toward the ends of the base 300. It is compressed by the support 500.

Then, when the external force acting on the underground wire 1 and the incoming wire 1 'is released (disappears), the compressed spring 600 makes the wire support 500 elastically move in one direction by the restoring force. And, the underground wire (1) and the incoming wire (1 ') and the wire support 500 holding it is returned to the initial position by the spring 600, there is an advantage that can always maintain the initial installation state .

According to a preferred embodiment of the present invention, the position fixing plate 200 is installed in the interior of the switchboard body 100, and the wire connector 400 and the wire support 500 in the position fixing plate 220 is installed By mounting and installing the wire connector 400, not only can easily and easily connect the underground wire (1) and the incoming wire (1 '), the wire can be neatly wired inside the switchboard body (100). .

In addition, the underground wire (1) and the incoming wire (1 ') electrically connected to the wire connector 400 is fixed to the ground via a wire support (500) installed so as to be movable to the base 300 underground wire ( Force is transmitted to the site where the ground wire 1 and the lead wire 1a of the lead wire 1 'are connected to each other by allowing them to move together when external force in the transverse direction is applied to the wire 1' and the lead wire 1 '. By offsetting as much as possible, there is an advantage of minimizing the release (shorting) of the connection portion of the underground wire (1) and the incoming wire (1 ').

In addition, the ground wire (1) and the incoming wire (1 ') inserted through both ends of the wire connector 400 can be easily and simply connected and released, the operation is very convenient, the underground wire via the connector (430) (1) and the lead wire (1a) of the lead wire (1 ') is fixed so that not only can maintain the connection state between the underground wire (1) and the lead wire (1'), but also the underground wire (1) ) And the sheath 1b of the incoming wire 1 'are hermetically wrapped and secured through the second elastic body 422, thereby preventing the infiltration of water from the outside.

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.

1: underground cable 1 ': incoming cable 100: main body of switchboard
200: fixing plate 210: fixing groove
300: base 310: base body 311: guide groove
312: hook portion 320: cover 400: wire connector
410: connector body 411: first semi-circular part 412: second semi-circular part
420: insulating material 421: first elastic member 422: second elastic member
430: wire connector 440: clamping bracket 500: wire support
510: engaging projection 520: fixed piece 600: spring

Claims (1)

The switchboard main body 100 which is installed outdoors by having a door unit 110 installed to be opened and closed via a hinge as follows:
Equipped with a plurality of fixing grooves 210 formed along the longitudinal direction, the position fixing plate 200 of the insulating material is installed through the fastening member inside the switchboard body 100:
A guide groove 311 opened at both ends and a hook portion 312 formed at a bottom thereof are installed to be detachably installed in the fixing groove 210 of the position fixing plate 200 via the hook portion 312. A rectangular base body 310 to be formed; Base 300 consisting of a cover 320 is installed on both ends of the base body 310 via a fastening means:
The first semi-circular portion 411 and the second semi-circular portion 412 having a semi-circular cross-section are divided into each, is formed to be folded and deployable via a hinge installed on the outer surface, the first semi-circular portion 411 It is installed on the upper surface of the base body 310 via the connecting portion (411a) formed on the outer surface, the interior of the hollow metal or synthetic resin connector body 410; A semi-circular first elastic body 421 and a second elastic body 422 provided at both ends of the first elastic body 421 and wrapped around and fixed to the sheath 1b of the underground wire 1 and the incoming wire 1 '. Insulating materials 420 which are respectively provided on the inner surfaces of the first and second semicircular portions 411 and 412; Equipped with a fixing portion 431 formed on the outer surface, and a fixing protrusion 432 formed on both ends of the inner surface, and is fixed to the first elastic body 421 via the fixing portion 431, both ends of the connector body 410 Conductor connectors made of metal with semicircular cross-sections that are electrically connected to each other by pressing and fixing the conductive wires 1a of the underground wires 1 and the incoming wires 1 'inserted through the fixing protrusions 432, respectively. 430; Wire connector 400 installed in the connector body 410 and provided with a clamping bracket 440 for intercepting the folding and unfolding of the first and second semi-circular portions 411 and 412:
A coupling protrusion 510 having one end movably inserted into the guide groove 211 of the base body 310 and the other end protruding upward; Wire support 500, which is provided on the other end of the engaging projection 510 and composed of a fixing piece 520 to elastically press the coating (1b) of the ground wire (1) and the incoming wire (1 '), respectively:
Inserted into the guide groove 211, the outdoor switchboard for the distribution between the underground wire and the incoming wire, characterized in that it comprises a spring 600 for supporting the wire support 500 in one direction.

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