KR101757826B1 - Earthquake proof apparatus of the distribution board - Google Patents

Abstract

The present invention relates to a seismic isolation system installed between a bottom of an enclosure of a switchgear and a foundation floor to buffer the vertical and horizontal loads generated by mechanical vibration or earthquake due to electromagnetic force due to large power energization.

Description

Earthquake proof apparatus of the distribution board

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an earthquake-proof apparatus, and more particularly, to a earthquake-proof apparatus applied to a switchboard.

Generally, it is impossible to supply electric power which can be used as it is from the electric power company like general electric equipment of low voltage of 110V or 220V because electric power of private use such as building or factory is large.

Therefore, in a large-sized building, a high voltage of 22.9 kV is supplied to a commercial power plant, and the transformer is converted to a commercial voltage.

These substations are provided with power supply facilities for receiving high voltage and special high voltage supplied from substations, high voltage received from substations, substation facilities for downwarding special high voltage to commercial voltage, And the electricity is supplied to the building safely and efficiently.

Such a switchboard usually has a predetermined volume and an interior of an enclosure having a door is usually provided with an inlet for receiving electric power from a power distribution line and an automatic section switch connected in series to the downstream of the inlet, a lightning arrester connected between the downstream of the automatic section switch and the ground, , A power fuse for protection of a transformer current transformer connected in series downstream of an automatic section switch, a transformer current transformer for a power supply instrument in series connected in series downstream of a power fuse for protecting a transformer current transformer, a totalizer connected to a transformer transformer for a power supply instrument, A main circuit breaker connected to the secondary side of the transformer and a transformer whose primary side is connected in series downstream of the power transformer transformer for electric power supply and supply devices and a plurality of wirings connected downstream of the main circuit breaker, And a breaker is installed.

Also, the enclosure of such a switchgear can be constructed by assembling the anchor bolts on the concrete floor surface inside or outside the building, assemble the floor angle, assemble the column angle on the floor angle, and assemble the enclosure on the assembled column angle. The bottom angle is assembled by bolt tightening and seismic design is not done separately.

However, in the conventional switchgear, the vibration situation is directly transmitted to the panel itself due to the mechanical vibration or the earthquake caused by the electromagnetic force due to the vibration of the floor or the energization of the large electric power, and various devices installed in the panel itself are damaged by earthquakes It is a fact that is often happening.

Therefore, due to natural disasters such as earthquakes, typhoons and tsunamis, which are frequent in recent years, collapsing structures and economic losses caused by them have been increasing. Therefore, it is important to secure the stability of building structures. Large buildings such as buildings and high-rise buildings, as well as power distribution boards installed in various structures, can be accompanied by huge loss of life, economic loss, and inability to operate various equipment due to interruption of power supply. Standards are being strengthened.

1. Korean Registered Patent No. 10-1011388 (issued on January 28, 2011) 2. Korean Registered Patent No. 10-1515796 (Announced 2015.05.04)

SUMMARY OF THE INVENTION The present invention has been developed to overcome the above-mentioned problems, and has been developed to solve the above-mentioned problems. It is an object of the present invention to provide a load- And an object of the present invention is to provide an earthquake-resistant apparatus for a transmission /

According to another aspect of the present invention, there is provided an apparatus for seismic isolation of a switchgear comprising: an upper plate coupled to a bottom surface of an enclosure of a switchgear; a lower plate fixed to the ground at a position opposite to the upper plate; And a first supporting member and a second supporting member coupled between the top plate and the bottom plate to prevent vibration generated in the ground from being transmitted to the switchboard.

The upper plate may have a first fixing groove, one side of which is coupled to the bottom surface of the enclosure of the switchgear and has a plurality of through grooves, and the other side of which is coupled with the second supporting assembly, And the second fixing groove is formed to be spaced apart from the first fixing groove and coupled with the first supporting body.

In addition, the lower plate has a wing portion fixed to the ground by an anchor bolt at one side and a third fixing groove at the other side facing the second fixing groove to which the first supporting body is coupled, And a recessed recessed groove is formed.

Further, the first supporting and coupling member is interposed between the second fixing groove and the third fixing groove, and the circular ring-shaped elastic body of the same diameter and the circular ring-shaped steel plate are alternately stacked and bonded, Wherein the elastic body and the steel plate are surrounded by a first coupling cover made of an elastic material.

Also, the second supporting and assembling body is coupled to the first fixing groove provided on the upper plate, and the elastic member having a circular plate shape and the circular plate-shaped steel plate are alternately stacked and bonded, And a hemispherical ball having a diameter smaller than that of the support groove is formed at a lower portion of the circular plate-like steel plate.

Wherein the circular ring-shaped elastic body and the circular plate-shaped elastic body are deformable into various shapes including a square, a triangle and a rhombus.

In addition, the hemispherical ball can be deformed into various shapes.

INDUSTRIAL APPLICABILITY The earthquake-resistant apparatus for a switchboard according to the present invention has a simple structure and can have an effect of buffering vertical and horizontal loads generated by mechanical vibration and earthquake caused by electromagnetic force due to high power energization.

1 is a cross-sectional view of a seismic system of a switchboard according to the present invention
Fig. 2 is a view showing the operation of the seismic isolation system of the power transmission /

While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and will herein be described in detail. It is to be understood, however, that the invention is not to be limited to the specific embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

Like reference numerals are used for like elements in describing each drawing. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

The terms first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another.

For example, without departing from the scope of the present invention, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component.

And / or < / RTI > includes any combination of a plurality of related listed items or any of a plurality of related listed items.

The terminology used in this application is used only to describe a specific embodiment and is not intended to limit the invention.

The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the terms "comprises" or "having" and the like are used to specify that there is a feature, a number, a step, an operation, an element, a component or a combination thereof described in the specification, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.

INDUSTRIAL APPLICABILITY The earthquake-resistant apparatus for a switchgear according to the present invention has a simple structure and can buffer the vertical and horizontal loads generated by mechanical vibration or earthquake caused by electromagnetic force due to large power energization.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an earthquake-resistant apparatus according to a preferred embodiment of the present invention will be described in detail with reference to the drawings. Hereinafter, the description of the conventional matters will be omitted or simplified in order to clarify the gist of the present invention.

1 is a sectional view of a seismic system of a switchboard according to the present invention. 2 is an operation diagram of an earthquake-proof apparatus according to the present invention when an earthquake occurs.

1 and 2, the vibration-damping apparatus 100 of the power-transmission-and-control panel is a device for buffering loads generated by earthquake or mechanical vibration. The vibration-damping apparatus 100 of the power- A first supporting member 30, and a second supporting member 40. The first supporting member 30,

One side of the top plate 10 is in close contact with the bottom surface 200 of the enclosure of the switchgear and has a plurality of engagement grooves 11 through which the bolts and nuts are used. (Not shown). The first fixing groove 12 is provided at the other side in the center and the upper portion of the first fixing groove 30 is separated from the first fixing groove 12, have.

The lower plate 20 has a wing 21 at one side in a position opposite to the upper plate 10 and is in close contact with the ground 300 so that the wing 21 is fixed to the ground 300 by an anchor bolt . On the other side, a third fixing groove 22 is provided at a position opposite to the second fixing groove 13 in the upper direction so that the lower part of the first supporting body 30 can be engaged. And the second support member 40 is supported by the second support member 40. When the hemispherical ball 43 of the second support member 40 receives a horizontal load, Can be done.

In FIG. 2, the hemispherical ball 43 is not moved. However, when the strength of the earthquake is large, the vibration can be buffered by moving along the support groove 23.

The first supporting member 30 is coupled between a second fixing groove 13 formed in the upper plate 10 and a third fixing groove 22 formed in the lower plate 20 and has a circular ring- The outer peripheral surface of the laminated elastic body 31 and the steel plate 32 can be wrapped by the first coupling cover 33 made of an elastic material so that the first coupling cover 31 and the circular ring- have.

The upper portion of the second supporting body 40 is coupled to the first fixing groove 12 of the upper plate 10 and is formed in a circular ring shape The elastic body 41 and the circular ring-shaped steel plate 42 are alternately stacked and bonded together and the outer circumferential surface can be surrounded by the second joint cover 43 made of an elastic material. The lower portion is formed of a hemispherical ball 44 having a diameter smaller than that of the receiving groove 23. When a horizontal load is applied by the earthquake or mechanical vibration, the horizontal load can be buffered while moving smoothly along the receiving groove 23.

The elastic members 31 and 41 of the first supporting member 30 and the second supporting member 40 and the steel plates 32 and 42 are not separated from each other by the coupling covers 33 and 43, Can be dispersed.

If the steel plates 32 and 42 are formed solely of the steel plates 32 and 42, it is difficult to buffer the vertical load. If the steel plates 32 and 42 are composed only of the elastic members 31 and 41, ) Can be arranged to compress vertical load or to compress vertical load when mechanical vibration occurs.

The shapes of the elastic members 31 and 41 and the steel plates 32 and 42 are not limited to the circular ring shape and the circular plate but may be rectangular or triangular depending on the shape of the upper plate 10 and the lower plate 20 The ball 44 may be deformed by flattening the concave support groove 23 inside if the flat surface of the ball 44 contacting the bottom plate 20 is flat.

10: Top plate
11: engaging groove 12: first fixing groove 13: second fixing groove
20:
21: wing portion 22: third fixing groove 23:
30: first supporting member
31: circular ring elastic body 32: circular ring steel plate 33: first coupling body cover
40: second support member
41: Circular plate elastic body 42: Circular plate steel plate
43: second coupling cover 44: hemispherical ball
100: Seismic device
200: Floor surface of switchgear
300: Earth

Claims (7)

An upper plate (10) coupled to the enclosure floor (200) of the power distribution panel;
A lower plate 20 fixed to the ground 300 at a position opposite to the upper plate 10;
The elastic members 31 and 41 and the steel plates 32 and 42 are alternately stacked and bonded to each other between the upper plate 10 and the lower plate 20 and the elastic members 31 and 41 and the steel plates 32 and 42, 32 and 42 are slid with respect to each other to prevent vibrations generated in the ground 300 from being transmitted to the switchgear by buffering the vertical and horizontal loads, and a second support and coupling unit 40; , ≪ / RTI &
The top plate (10)
And a first fixing groove 12 having a plurality of engagement grooves 11 through which one end thereof is coupled to the bottom surface 200 of the enclosure of the switchgear and to which the second support assembly 40 is coupled at the other side A second fixing groove 13 is formed which is spaced apart from the first fixing groove 12 and is coupled to the first supporting member 30,
The bottom plate (20)
And a second fixing groove (12) is provided on the other side with a wing portion (21) provided at one side thereof fixed to the ground (300) by an anchor bolt and a third fixing A groove 22 is provided, a concave recessed groove 23 is formed therein,
Wherein a bottom of the second supporting and coupling member is located in the receiving groove and a hemispherical ball having a smaller diameter than the receiving groove is formed. delete delete The method according to claim 1,
The first supporting and coupling member 30
A circular ring-shaped elastic body 31 of the same diameter and a circular ring-shaped steel plate 32, which are coupled between the second fixing groove 13 and the third fixing groove 22, are alternately stacked and bonded , And the stacked elastic body (31) and the steel plate (32) are surrounded by a first joint cover (33) made of an elastic material. The method according to claim 1,
The second supporting and coupling member 40
And an upper portion is coupled to the first fixing groove 12 provided in the upper plate 10 and a circular plate-shaped elastic body 41 and a circular plate-shaped steel plate 42 are alternately stacked and bonded, Wherein the circular plate-shaped elastic member (41) and the circular plate-shaped steel plate (42) are enclosed by a second coupling cover (43) made of a metal plate. The method according to claim 4 or 5,
Wherein the elastic members (31, 41) are deformable into various shapes including a quadrangle, a triangle, and a rhombus. The method according to claim 1,
Wherein the hemispherical balls (44) are deformable in various forms.

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