KR102279369B1 - Seismic device having a switchboard - Google Patents

Abstract

The present invention relates to a switchboard equipped with a seismic device. The present invention is to prevent a situation such as a power outage and a discharge of electricity from occurring due to a service line-switchgear disconnection or a loosened service line-switchgear connection attributable to service line pulling during an earthquake. As for the switchboard, a service line is drawn into a distribution box and is electrically connected to a main switchgear and the main switchgear and a circuit breaker are connected by a branch connection line. The switchboard includes: a support stand protruding from the distribution box; a coupling rod having a protruding end coupled to the base plate; a coupling plate coupled to the other end of the coupling rod, separated from the base plate, and having a coupling hole through which the support stand passes; a nut portion coupled to an end portion of the support stand and seated on the coupling plate; a coil spring having a hollow region where the support stand is inserted and disposed, disposed on the distribution box side at one end, disposed on the coupling plate side at the other end, and forming an elastic force between the distribution box and the coupling plate; a first fixing pad surrounding the support stand in close contact with the distribution box and having a first circular groove where one end portion of the coil spring is inserted; and a second fixing pad having a second circular groove inserted into the other end portion of the coil spring and disposed between the coil spring and the coupling plate.

Description

Distribution board equipped with seismic device {SEISMIC DEVICE HAVING A SWITCHBOARD}

The present invention relates to a distribution board equipped with an earthquake-resistant device, and more particularly, to a distribution board equipped with an earthquake-resistant device for preventing a situation in which a connection point between a switch and a trunk line entering a distribution board is twisted or loosened when an earthquake occurs will be.

The distribution board is placed on the wall of the building or in the inspection room, and when electricity is supplied inside the building, a separate circuit breaker is installed for each line to which electricity is supplied so that the circuit breaker is automatically switched off in the event of a short circuit or electric shock. It prevents short circuit accidents, electric shock accidents, and fire accidents.

Here, the distribution board is mainly used in the form of being buried at the time of extension of the building, and the form of extension in the outer wall is used.

Such a distribution board is either buried in a building or fixed to an inner wall or an outer wall. When an earthquake occurs, vibration-proof rubber is installed inside to prevent the vibration flowing into the switchgear or circuit breaker from being transmitted, thereby protecting the device inside the distribution board. are doing

In accordance with Patent Document 1, in the distribution board equipped with earthquake-resistant means, which is Korean Patent Registration No. 10-1488422 (announced on February 3, 2015), the plate on which the substrate is mounted on the distribution board is spaced apart by the earthquake-proof means and the vibration-proof rubber member in the distribution board body. It is installed to prevent secondary damage such as power outages and fires due to damage to distribution boards in the event of an earthquake.

However, in Patent Document 1, the plate on which the substrate is mounted absorbs the shock by the earthquake-proof means and the vibration-proof rubber member to prevent the plate from vibrating, but in Patent Document 1, it is electrically connected to the switch installed on the plate. As the service line is pulled or shaken by an earthquake, the contact between the service line and the switchgear is broken or loosened, resulting in a situation such as a power outage or a discharge.

Therefore, in the conventional distribution board, a situation in which the incoming line is pulled during an earthquake occurs, and the contact between the trunk line and the switchgear is released or loosened, so that a situation such as a blackout or a discharge does not occur.

Republic of Korea Patent Publication No. 10-0929245 (published on Dec. 01, 2009)

The technical problem of the present invention to solve the above problems is that the conventional distribution board has a situation in which the incoming line is pulled during an earthquake, so that the contact between the incoming line and the switchgear is released or loosened, so that situations such as blackout or discharge do not occur. An object of the present invention is to provide a distribution board equipped with an earthquake-resistant device.

The distribution board provided with the earthquake-resistant device of the present invention for achieving the above technical problem is a box-shaped distribution box having an opening area formed on one surface and rotatably coupled to the opening area to rotate in the open area to serve as a cover a distribution box including a door unit; a lead-in line extending from a power supply source and introduced into the distribution box; a base plate disposed inside the distribution box and spaced apart from the distribution box; a main switch coupled to the base plate and electrically connected to the lead-in line; a branch connection line electrically connected to the main switch and coupled to the base plate but insulated; a circuit breaker electrically connected to the branch connection line to branch the electric power supplied from the main switch and automatically cut off the electric power in case of overload; a support formed to protrude from the distribution box; a coupling rod having one end protruded and coupled to the base plate; a coupling plate coupled to the other end of the coupling rod and installed to be spaced apart from the base plate, the coupling plate having a coupling hole through which the support passes; a nut portion coupled to the end of the support and seated on the coupling plate; a coil spring disposed by inserting the support in the hollow region, one end disposed toward the distribution box and the other end disposed toward the coupling plate to form an elastic force between the distribution box and the coupling plate; a first fixing pad enclosing the support in close contact with the distribution box and having a first circular groove into which one end of the coil spring is inserted; and a second fixing pad having a second circular groove inserted into the other end of the coil spring and disposed between the coil spring and the coupling plate. includes

In this case, the distribution board provided with the earthquake-resistant device includes a wire support rod having one end protruding and coupled to the distribution box; The outer periphery is disposed so as to surround the outer periphery of the wire support bar, and the section of the folding area contacting adjacent to the outer periphery of the wire support bar is arranged in a contracted state and is bent in an arc shape, and in the outer radius section of the arc shape a spring for electric wire disposed so that the lead-in line is wrapped; a spring bending part for binding the area where the wire support bar and the spring for the wire come into contact with each other so that the area where the wire support bar and the spring for the wire come into contact with each other is bound; And, it is composed of a plurality of wire springs for bending the arc-shaped outer radius formed in the vicinity of the region and the lead-in bending portion for binding the lead-in line; It may be configured to further include.

In addition, the lead-in line is bent to one side in a state in which it is drawn in from the lower part of the distribution box to cross to the upper area of the distribution box and is electrically connected to the main switchgear, and a bent area is provided in an area in contact with the spring for the wire. can be formed.

The present invention prevents the occurrence of a situation such as a power outage or a discharge by absorbing the vibration that the main switch coupled to the base plate flows into the base plate and preventing the contact release or loosening of the contact terminal vicinity of the lead-in line due to the vibration. has the effect of

In addition, in the present invention, since the vibration transmitted through the lead-in absorbs the shock by a buffer action caused by the contraction and relaxation of the spring for the wire, the vibration is not transmitted to the main switch, so that the contact near the contact terminal is released or loosened By being prevented, there is an effect of preventing a situation such as a power outage or a discharge from occurring.

In addition, the present invention relates to a situation in which a lead-in wire drawn from a main switchboard to a distribution board is strongly pulled or pushed due to a collapse of a facility due to an earthquake of a building, etc., and a strong impact is introduced to the lead-in side. As it absorbs shock by relaxation and at the same time prevents the lead-in wire from being disconnected by the secured curved margin, it prevents the contact near the contact terminal from being released or loosened, thereby preventing situations such as static electricity or discharge from occurring. there is

1 is a front view of a distribution board provided with an earthquake-resistant device according to an embodiment of the present invention.
FIG. 2 is a cross-sectional view taken along line AA shown in FIG. 1. FIG.
FIG. 3 is a partial cross-sectional view enlarged of area B shown in FIG. 2 .
4 is an enlarged partial front view of region C shown in FIG. 1;

Hereinafter, an embodiment for carrying out the present invention will be described with reference to the accompanying drawings, and in this case, when a part "includes" a certain component throughout the specification, this is unless otherwise specifically stated. It is not intended to control other components, but is considered to mean that other components may be further included. In addition, terms such as "...unit" described in the specification mean a unit that processes at least one function or operation when describing electronic hardware or electronic software, and when describing a mechanical device, one part, function, shall be taken to mean a use, a point or a driving element. In the following, the same or similar components will be described using the same reference numerals, and overlapping descriptions of the same components will be omitted.

1 is a front view of a distribution board provided with an earthquake-resistant device according to an embodiment of the present invention. FIG. 2 is a cross-sectional view taken along line A-A shown in FIG. 1 . FIG. 3 is a partial cross-sectional view enlarged of area B shown in FIG. 2 . FIG. 4 is an enlarged partial front view of region C shown in FIG. 1 .

1 to 4, the distribution board equipped with a seismic device according to an embodiment of the present invention has a distribution box 1, a lead-in line 2, a base plate 3, a main switch 4, a branch connection. Wire (5), circuit breaker (6), support (7), coupling rod (8), coupling plate (9), nut portion (10), coil spring (11), first fixing pad (12) and second fixing It includes a pad 13 , and may further include a wire support bar 14 , a spring for wire 15 , a spring bending part 16 , and a lead-in bending part 17 .

The distribution box 1 includes a distribution box 1a and a door unit 1b.

The distribution box 1a is formed in a box shape and an opening area is formed on one surface. In this case, the distribution box 1a may be composed of an exposed distribution box 1a coupled to a wall surface of a building.

The door part 1b is rotatably coupled to the open area of the distribution box 1a and rotates in the open area to serve as a cover.

Such a distribution box (1) seals the main switch (4), branch connection line (5) and circuit breaker (6) electrically connected to the lead-in line (2) on the inside so that unauthorized users cannot contact it, thereby preventing safety accidents. This will prevent the main switch 4 and the branch connection line 5 and the circuit breaker 6 will be fixed.

The lead-in line (2) is extended in a state of being electrically connected to a power supply source such as a switchboard and is introduced into the distribution box (1). In the case of this embodiment, the lead-in line 2 is bent to one side in a state of being drawn in from the lower part of the distribution box 1 to cross to the upper region of the distribution box 1, and is electrically connected to the main switch 4, A bending area is formed in the area in contact with the spring 15 for the electric wire.

The base plate 3 is formed in a plate shape and accommodated inside the distribution box 1 , and is spaced apart from the distribution box 1 . In this case, the base plate 3 has a cut-out area formed in the inner corner area, and the support 7 and the coil spring 11 are disposed therein. Such a base plate 3 provides a space in which the main switch 4, the branch connection line 5, and the circuit breaker 6 are seated, and the main switch and the circuit breaker 6 are coupled by bolting. , the branch connection line 5 is coupled and fixed to the insulator coupled to the base plate 3 . Here, the base plate 3 is installed to be spaced apart from the inner surface of the distribution box 1 by a predetermined interval.

The main switch (4) is coupled to the base plate (3), and the lead wire (2) is electrically connected. The main switch 4 may selectively block the supply of power to the facility by interrupting the operator when an abnormality occurs in the facility receiving power.

The branch connection line 5 is formed of a plate-shaped copper bar, is electrically connected to the main switch 4, is coupled to the base plate 3, and is insulated by an insulator. This branch connection line (5) electrically connects between the main switch (4) and the circuit breaker (6).

The circuit breaker 6 is electrically connected to the branch connection line 5 to branch the power supplied from the main switch 4, but automatically cuts off the power in case of overload. Here, the circuit breaker 6 is composed of a plurality and distributes power so as to match the current capacity allowed for each group of lights or outlets installed inside the facility, and automatically cuts off the power when an air leakage or overload occurs in each group. This will prevent electric shock or fire accidents in advance.

The support 7 is formed in the shape of a rod in which a nana mountain is formed on the body and protrudes from the distribution box 1 with one end coupled to the distribution box 1 . The support 7 is inserted into the inner periphery of the coil spring 11 , and the other end is coupled to the nut part 10 to limit the coupling plate 9 to move only to the nut part 10 .

The coupling rod 8 has one end protruding and coupled to the base plate 3 , and the other end coupled with the coupling plate 9 . The coupling rod 8 is spaced apart from the coupling plate 9 by the length of the coupling rod 8 from the base plate 3 .

The coupling plate 9 is coupled to the other end of the coupling rod 8 and installed to be spaced apart from the base plate 3, and a coupling hole through which the support 7 passes is formed. The coupling plate 9 provides an area to which the second fixing pad 13 is in close contact, and is in close contact when the nut portion 10 is fastened to the support 7 .

Here, the coupling rod 8 and the coupling plate 9 form an arrangement space so that the coil spring 11 can act as a buffer, so that the size of the distribution box 1 for installation of the coil spring 11 is changed from the commercial standard. Thus, it is possible to maintain versatility while preventing an increase in manufacturing cost by not manufacturing it.

The nut part 10 is coupled to the end of the support 7 and is seated on the coupling plate 9 . The nut part 10 limits the moving distance so that the coupling plate 9 pressed by the coil spring 11 does not come off.

The coil spring 11 is disposed with the support 7 inserted into the hollow region, one end disposed on the distribution box 1 side and the other end disposed on the coupling plate 9 side, between the distribution box 1 and the coupling plate 9 . to form an elastic force. The coil spring 11 provides an elastic force between the distribution box 1 and the base plate 3 , thereby absorbing the shock when an impact is applied to the base plate 3 .

The first fixing pad 12 is formed in a circular pad shape with a hole in the center, and the support 7 passes through the hole in the center and is placed in close contact with the distribution board to surround the support 7, and a coil spring ( A first circular groove 12a into which one end of 11) is inserted is formed. Also, the first fixing pad 12 is disposed between the distribution board and the coil spring 11 .

The second fixing pad 13 is formed in a circular pad shape in which a hole is formed in the center, and the support 7 passes through the hole in the center and is disposed in close contact with the coupling plate 9 to surround the support 7 and , a second circular groove 13a into which the other end of the coil spring 11 is inserted is formed. In addition, the second fixing pad 13 is disposed between the coil spring 11 and the coupling plate (9).

The first fixing pad 12 and the second fixing pad 13 are such that, when the coil spring 11 surrounds the support 7 and is disposed, the coil spring 11 comes into contact with the support 7 and does not interfere with it. The coil spring 11 is fixed at a specific position. In addition, the first fixing pad 12 and the second fixing pad 13 are formed of a resin material having elastic force such as rubber or silicone, so that when the coil spring 11 flows, the coil spring 11 and the first fixing pad ( 12) and the second fixing pad 13 are prevented from generating a friction noise due to friction.

The wire support rod 14 has one end protruding from the distribution box 1 and coupled thereto.

The spring 15 for electric wire is formed in a coil-type spring shape. The spring 15 for the wire is arranged so that the outer periphery surrounds the outer periphery of the wire support bar 14, and the section of the foldable region in contact adjacent to the outer periphery of the wire support bar 14 is arranged in a contracted state, thereby having an arc shape. arranged in a curved shape. In this case, the lead-in line 2 is arranged so that when the spring 15 for electric wire is bent in an arc shape, the lead-in line 2 is wrapped in the outer radius section of the arc shape.

The spring bending unit 16 binds the area where the wire support bar 14 and the wire spring 15 come into contact with each other so that the area where the wire support bar 14 and the wire spring 15 abut is bound. In this case, the spring bending part 16 wraps the wire support bar 14 together with the contracted area so that the portion abutting the wire support bar 14 maintains a certain shape in a state where a portion of the spring 15 for the wire is contracted. combined in the form

The lead-in bending part 17 binds the lead-in line 2 to an area in the vicinity of the arc-shaped outer radius formed by bending the wire spring 15 . Here, the lead-in bending part 17 is composed of a plurality and binds at each point in each section where the lead-in 2 and the wire spring 15 come into contact so that when the lead-in wire 2 moves, the wire spring 15 also moves. is formed

Hereinafter, actions and effects occurring when a distribution board equipped with an earthquake-resistant device according to an embodiment of the present invention as described above receives an earthquake or shock will be described.

First, when an earthquake occurs, in the distribution board provided with the earthquake-resistant device according to an embodiment of the present invention, the building in which the distribution board is installed shakes, and the vibration generated in the building is transmitted through the distribution board.

In this case, the distribution board is shaken together with the building. Then, the vibration generated from the distribution board is transmitted to the coil spring 11, and the coil spring 11 absorbs vibration energy of a certain energy while shaking or yawing in the transverse direction. At this time, the first fixing pad 12 and the second fixing pad 13 absorb the vibration while rubbing against the coil spring 11 . Therefore, the main switch 4 coupled to the base plate 3 absorbs the vibration flowing into the base plate 3 and prevents the contact terminal vicinity of the lead-in line 2 from being released or loosened due to vibration. , to prevent situations such as blackouts or discharges from occurring.

At the same time, the vibration flowing into the distribution board is transmitted through the lead-in wire 2, and at this time, the vibration transmitted through the lead-in wire 2 absorbs the shock by a buffer action by the contraction and relaxation of the wire spring 15, By preventing the vibration from being transmitted to the main switch 4, a phenomenon in which the contact near the contact terminal is released or loosened is prevented, thereby preventing situations such as a power outage or a discharge from occurring.

In particular, in the present invention, in the case of a situation in which a strong impact is introduced to the lead-in side by strongly pulling or pushing the lead-in line 2 leading from the main switchboard to the distribution board due to the earthquake of the building due to the collapse of the facility, etc., the lead-in line 2 is Since the spring 15 for electric wire absorbs the shock by contraction and relaxation and at the same time prevents the lead-in wire 2 from being disconnected by the secured curved margin, the contact in the vicinity of the contact terminal is released or loosened is prevented. It is effective in preventing situations such as power outages or discharges from occurring.

As described above, the present invention has been described with specific matters such as specific components and limited embodiments and drawings, but these are provided to help a more general understanding of the present invention, and the present invention is not limited to the above embodiments. , various modifications and variations are possible from these descriptions by those of ordinary skill in the art to which the present invention pertains.

Therefore, the spirit of the present invention should not be limited to the described embodiments, and not only the claims to be described later, but also all those with equivalent or equivalent modifications to the claims will be said to belong to the scope of the spirit of the present invention. .

1: distribution box 2: service line
3: base plate 4: main switch
5: branch connection line 6: circuit breaker
7: support 8: coupling rod
9: coupling plate 10: nut part
11: coil spring 12: first fixing pad
12a: first circular groove 13: second fixing pad
13a: second circular groove 14: electric wire support bar
15: spring for electric wire 16: spring bending part
17: incoming line bending part

Claims (3)

A distribution box (1) comprising: a box-shaped distribution box (1a) having an open area on one surface thereof and a door unit (1b) rotatably coupled to the open area and rotating in the open area to serve as a cover;
a lead-in line (2) extending from a power supply source and entering the distribution box (1);
a base plate (3) disposed inside the distribution box (1) and spaced apart from the distribution box (1);
a main switch (4) coupled to the base plate (3) and electrically connected to the lead-in line (2);
a branch connection line (5) electrically connected to the main switch (4) and coupled to the base plate (3) but insulated and coupled;
a circuit breaker (6) electrically connected to the branch connection line (5) to branch the power supplied from the main switch (4) but automatically cut off the power in case of overload;
a support 7 protruding from the distribution box 1;
a coupling rod (8) having one end protruded and coupled to the base plate (3);
a coupling plate 9 coupled to the other end of the coupling rod 8 and installed to be spaced apart from the base plate 3, and having a coupling hole through which the support 7 passes;
a nut portion 10 coupled to an end of the support 7 and seated on the coupling plate 9;
The support 7 is inserted and disposed in the hollow area, and one end is disposed toward the distribution box 1 and the other end is disposed toward the coupling plate 9, so that elastic force between the distribution box 1 and the coupling plate 9 is provided. a coil spring 11 forming a;
a first fixing pad 12 surrounding the support 7 in close contact with the distribution box 1 and having a first circular groove 12a into which one end of the coil spring 11 is inserted;
a second fixing pad (13) having a second circular groove (13a) inserted into the other end of the coil spring (11) and disposed between the coil spring (11) and the coupling plate (9);
a wire support rod 14 having one end protruded and coupled to the distribution box 1;
The outer periphery is disposed so as to surround the outer periphery of the wire support bar 14, and the section of the folding area in contact with the outer periphery of the wire support bar 14 is arranged in a contracted state and bent in an arc shape, a spring 15 for wires disposed so that the lead-in line 2 is wrapped in an arc-shaped outer radius section;
a spring bending part 16 that binds the area where the wire support rod 14 and the wire spring 15 come into contact with each other so that the contracted area of the wire spring 15 and the wire support rod 14 are wrapped; and;
The wire spring 15 is bent to bind the area near the outer radius of the arc shape and the lead wire 2, but it is composed of a plurality of points for each section where the lead wire 2 and the wire spring 15 abut. When the lead-in wire (2) moves by binding every time, the wire-in bending part (17) is formed so that the spring (15) for the wire also moves; includes,
The lead-in line 2 is drawn in from the lower part of the distribution box 1 and is bent to one side in a state in which it is arranged to cross the upper region of the distribution box 1 and is electrically connected to the main switch 4, but the electric wire Distribution board equipped with a seismic device, characterized in that the bending area is formed in the area in contact with the spring (15). delete delete

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