KR102450883B1 - Switchboard equipped with a shock wave damping structure with multidirectional dufferring function - Google Patents

Abstract

Disclosed is a switchboard equipped with a shock wave damping structure having a multi-directional buffering function provided in plurality at a lower part of the switchboard for absorbing vibration or shock generated by an earthquake or the like to increase structural safety against earthquakes. The switchboard equipped with a shock wave damping structure having a multi-directional buffering function comprises a shock wave damping structure placed between a lower end of the switchboard and the ground to attenuate horizontal shock waves and vertical shock waves at the same time. The shock wave damping structure comprises: a first spring member disposed at a lowermost portion and attenuating horizontal shock waves; a second spring member disposed at an uppermost portion and attenuating the horizontal shock waves; and a third spring member placed between the first spring member and the second spring member with a plurality of donut-shaped disks curved up and down on a plane having a shape stacked in a vertical direction while being in contact with each other at different points of contact and attenuating the vertical shock waves (i) and attenuating the horizontal shock waves with holes formed in each of the donut-shaped disks along the width direction of the disks (ii).

Description

SWITCHBOARD EQUIPPED WITH A SHOCK WAVE DAMPING STRUCTURE WITH MULTIDIRECTIONAL DUFFERRING FUNCTION

The present invention relates to a switchgear provided with a shock wave damping structure having a multidirectional buffer function, and more particularly, a plurality of switchgears provided at the lower part of the switchgear to absorb vibrations or shocks generated due to earthquakes, etc. It relates to a switchgear equipped with a shock wave attenuation structure having a multidirectional buffer function capable of increasing safety.

In general, a switchgear is a device used for monitoring, control, and protection of the power system. It refers to an assembly of unit devices, support structures, and wires to connect them, and has built-in facilities for dividing power to the intended use or its It will have panels that control the facilities.

If vibration or shock is applied to the switchboard due to external factors such as earth landslides or explosions, electrical components such as internal power devices, wiring and protective relays of the control panel may be damaged, and the power supply will be interrupted due to the resulting power failure or there is a risk of fire.

Building collapse accidents are occurring due to natural disasters such as earthquakes, typhoons, and tsunamis, which have become more frequent in recent years, and economic losses are also increasing. Even in this case, in order to minimize the interruption of power supply and consequent economic loss due to damage, the seismic design standards are gradually being strengthened.

Korean Patent Registration No. 10-2158964 (Notice on October 23, 2020) (Title of Invention: Switchgear with Seismic Device) Korean Patent Registration No. 10-2365818 (Notice on Feb. 23, 2022) (Title of Invention: Switchgear Seismic Device)

Accordingly, the technical problem of the present invention is based on this point, and an object of the present invention is a multi-directional buffer function that can effectively absorb and cancel or reduce vibrations or shocks generated by earthquakes, etc. in response to the direction in which they are transmitted It is to provide a switchgear equipped with a shock wave damping structure having a.

In order to realize the object of the present invention, a switchgear equipped with a shock wave damping structure having a multidirectional buffer function according to an embodiment is disposed between the lower end of the switchgear and the ground to simultaneously attenuate a horizontal shock wave and a vertical shock wave It includes a damping structure. The shock wave damping structure may include: a first spring member disposed at a lowermost portion and attenuating a horizontal shock wave; a second spring member disposed on the uppermost portion and attenuating a horizontal shock wave; and (i) a plurality of donut-shaped disks bent up and down on a plane are vertically stacked while contacting each other at different contact points and are disposed between the first spring member and the second spring member, a vertical shock wave and (ii) holes are formed in each of the donut-shaped disks along the width direction of the disks to attenuate a horizontal shock wave.

In one embodiment, each of the first spring member and the second spring member, an outer ring; inner ring; a first intermediate member connected to the first region of the outer ring and extending along a region between the outer ring and the inner ring and connected to the first region of the inner ring; a second intermediate member connected to the second region of the outer ring and extending along a region between the outer ring and the inner ring and connected to the second region of the inner ring; and a third intermediate member connected to the third region of the outer ring and extending along a region between the outer ring and the inner ring and connected to the third region of the inner ring.

In one embodiment, the first area of the outer ring and the first area of the inner ring are located on the same radiation, the second area of the outer ring and the second area of the inner ring are located on the same radiation; The third region of the outer ring and the third region of the inner ring may be located on the same radiation.

In one embodiment, an inner angle between a first area of the outer ring and a second area of the outer ring, an inner angle between a second area of the outer ring and a third area of the outer ring, a third area of the outer ring and the Each of the inner angles between the first regions of the outer ring may be 120 degrees.

In one embodiment, the thickness of each of the outer ring, the inner ring, the first intermediate member, the second intermediate member, and the third intermediate member may be substantially the same.

In one embodiment, the distance between the outer ring and the first intermediate member, the first intermediate member and the second intermediate member, the second intermediate member and the third intermediate member spacing, and the third intermediate member The spacing between the member and the inner ring may be substantially uniform.

In one embodiment, each of the first spring member and the second spring member is formed in a curved shape in which three members are spaced apart at the same distance in a circle having a certain radius in a direction in which the radius increases, and then contact the outer side at the same distance. It may be formed to extend in a circle.

In one embodiment, the switchgear provided with the shock wave damping structure having the multidirectional buffer function has a square plate shape, supports the first spring member, and may further include a lower fixing plate fastened to an upper portion of a concrete structure. have.

In one embodiment, the switchboard provided with the shock wave damping structure having the multidirectional buffer function has a square plate shape, supports the second spring member, and may further include an upper fixing plate fastened to the lower portion of the switchboard.

According to the switchgear provided with the shock wave attenuation structure having such a multidirectional buffer function, the horizontal shock wave applied to the switchgear is attenuated by the first spring member disposed at the lowermost portion and the second spring member disposed at the uppermost portion, and applied to the switchboard The falling vertical shock wave is attenuated by the third spring member disposed in the middle part, and additionally, the horizontal shock wave applied to the switchboard is attenuated by the holes formed along the width direction of the disc of the third spring member, so that any Even when a shock wave is applied, it is possible to prevent damage to the switchgear and interruption of power supply by effectively absorbing and mitigating vibrations or shocks generated by earthquakes in response to the direction in which they are transmitted.

1 is a side view for explaining a switchgear provided with a shock wave damping structure having a multidirectional buffer function according to an embodiment of the present invention.
FIG. 2 is a perspective view illustrating the shock wave damping structure shown in FIG. 1 .
3 is a side view for explaining the shock wave damping structure shown in FIG.
4 is an exploded perspective view illustrating the shock wave damping structure shown in FIG. 2 .
5 is a side view for explaining the shock wave damping structure shown in FIG.
FIG. 6 is a plan view illustrating a first spring member of the shock wave damping structure shown in FIG. 2 .

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings. Since the present invention can have various changes and can have various forms, specific embodiments are illustrated in the drawings and described in detail in the text. However, this is not intended to limit the present invention to the specific disclosed form, it should be understood to include all modifications, equivalents and substitutes included in the spirit and scope of the present invention.

In describing each figure, like reference numerals have been used for like elements. In the accompanying drawings, the dimensions of the structures are enlarged than the actual size for clarity of the present invention.

Terms such as first, second, etc. may be used to describe various elements, but the elements should not be limited by the terms. The above terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, a first component may be referred to as a second component, and similarly, a second component may also be referred to as a first component. The singular expression includes the plural expression unless the context clearly dictates otherwise.

In the present application, terms such as "comprise" or "have" are intended to designate that a feature, number, step, operation, component, part, or a combination thereof described in the specification exists, but one or more other features It is to be understood that it does not preclude the possibility of the presence or addition of numbers, steps, operations, components, parts, or combinations thereof.

In addition, unless otherwise defined, 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 the present invention belongs. Terms such as those defined in a commonly used dictionary should be interpreted as having a meaning consistent with the meaning in the context of the related art, and should not be interpreted in an ideal or excessively formal meaning unless explicitly defined in the present application. does not

Hereinafter, for convenience of explanation, the left and right longitudinal direction of the structure to be protected is 'X-axis direction', the front-back longitudinal direction is 'Y-axis direction', the vertical longitudinal direction is 'Z-axis direction', the X-axis direction and the Y-axis direction. The area defined by the 'XY plane', the area defined by the X-axis direction and the Z-axis direction is the 'XZ plane', the area defined by the X-axis direction and the Z-axis direction is the 'XZ plane', the Y-axis direction and the Z direction A region defined by the axial direction will be referred to as a 'YZ plane' and will be described.

1 is a side view for explaining a switchgear provided with a shock wave damping structure having a multidirectional buffer function according to an embodiment of the present invention. FIG. 2 is a perspective view illustrating the shock wave damping structure shown in FIG. 1 . 3 is a side view for explaining the shock wave damping structure shown in FIG. 4 is an exploded perspective view illustrating the shock wave damping structure shown in FIG. 2 . 5 is a side view for explaining the shock wave damping structure shown in FIG.

1, 2, 3, 4 and 5, the switchgear provided with the shock wave damping structure 100 having a multidirectional buffer function according to an embodiment of the present invention includes the shock wave damping structure 100. include

The shock wave damping structure 100 includes a lower fixed plate 110 , a first spring member 120 , an upper fixed plate 130 , a second spring member 140 and a third spring member 150 , and a switchgear housing It is disposed between the lower end of the 200 and the ground to simultaneously attenuate a horizontal shock wave and a vertical shock wave. In FIG. 1 , seven shock wave damping structures 100 are shown to be disposed in a uniaxial direction, but the number may be variously changed. In addition, the shock wave damping structure 100 may be disposed to surround the lower region of the switchboard, or may be disposed planarly to cover the lower region of the switchboard in a matrix shape.

The lower fixing plate 110 has a rectangular plate shape, supports the first spring member 120, and is fastened to an upper portion of a concrete structure or the like. In this embodiment, the lower fixing plate 110 is fastened to the concrete structure through four screws. The central portion of the lower fixing plate 110 includes an upwardly protruding member 112 protruding upward. The upwardly protruding member 112 is fitted to the first spring member 120 and protrudes upward.

The first spring member 120 is disposed on the lower fixing plate 110 to attenuate the shock wave in the horizontal direction. The first spring member 120 may be formed in a curved shape in which three members are spaced apart at the same distance in a circle having a certain radius in a direction in which the radius increases, and then extend to an outer circle contacting at the same distance.

The upper fixing plate 130 has a rectangular plate shape, supports the second spring member 140, and is fastened to the lower portion of the switchboard. In this embodiment, the upper fixing plate 130 is fastened to the lower part of the switchboard through four screws. A central portion of the upper fixing plate 130 includes a downwardly protruding member 132 protruding downward. The downward protruding member 132 is fitted to the second spring member 140 and protrudes downward. The downward protruding member 132 is disposed on the same central axis as the central axis of the upwardly protruding member 112 and spaced apart from the upwardly protruding member 112 by a predetermined distance.

The second spring member 140 is disposed under the upper fixing plate 130 to attenuate the shock wave in the horizontal direction. The second spring member 140 may be formed in a curved shape in which three members are spaced apart at the same distance from a circle having a certain radius in a direction in which the radius increases, and then extend to an outer circle contacting at the same distance.

The third spring member 150 has a shape in which a plurality of donut-shaped disks bent up and down on a plane are vertically stacked while contacting each other at different contact points, and the first spring member 120 and the second spring member 140 ) to attenuate the vertical shock wave. Also, holes 152 are formed in each of the donut-shaped disks along the width direction of the disks to attenuate a horizontal shock wave. That is, in the third spring member 150 , a plurality of donut-shaped disks are stacked in a vertical direction to attenuate a vertical shock wave, and holes 152 are formed in the doughnut-shaped disks along the width direction of the disk in the horizontal direction. dampens shock waves.

As described above, according to the present invention, the horizontal shock wave applied to the switchgear is disposed at the top of the first spring member 120 and the shock wave damping structure 100 disposed at the bottom of the shock wave damping structure 100 . The shock wave in the vertical direction, which is attenuated by the second spring member 140 and applied to the switchgear, is attenuated by the third spring member 150 disposed in the middle portion of the shock wave damping structure 100 . Additionally, the horizontal shock wave applied to the switchgear is attenuated by the holes formed along the width direction of the disk of the third spring member 150 . Accordingly, even if a shock wave is applied to the switchgear in any direction, the shock wave can be easily buffered, thereby preventing the interruption of the power supply due to damage caused by an earthquake.

6 is a plan view illustrating the first spring member 120 of the shock wave damping structure 100 shown in FIG. 2 .

Referring to FIG. 6 , the first spring member 120 includes an outer ring 121 , an inner ring 122 , a first intermediate member 123 , a second intermediate member 124 , and a third intermediate member 125 . include In this embodiment, the three intermediate members (123, 124, 125) in the inner ring 122 having a certain radius are spaced apart at the same interval to form a curved shape in the direction of increasing the radius, and then contact the outer side at the same interval. The ring 121 is extended to form the first spring member 120 .

The outer ring 121 has a circular shape and is disposed outside the inner ring 122 .

The inner ring 122 has a circular shape and is disposed inside the outer ring 121 .

The first intermediate member 123 is connected to the first area 121a of the outer ring 121 and extends along the area between the outer ring 121 and the inner ring 122 to the first area of the inner ring 122 . connected to (122a).

The second intermediate member 124 is connected to the second area 121b of the outer ring 121 and extends along the area between the outer ring 121 and the inner ring 122 to the second area of the inner ring 122 . connected to (122b).

The third intermediate member 125 is connected to the third area 121c of the outer ring 121 and extends along the area between the outer ring 121 and the inner ring 122 to form a third area of the inner ring 122 . connected to (122c).

The first area 121a of the outer ring 121 and the first area 122a of the inner ring 122 are located on the same radiation, and the second area 121b and the inner ring 122 of the outer ring 121 The second region 122b of , is located on the same radiation, and the third region 121c of the outer ring 121 and the third region 122c of the inner ring 122 are located on the same radiation.

The inner angle between the first area 121a of the outer ring 121 and the second area 121b of the outer ring 121, the second area 121b of the outer ring 121 and the third area of the outer ring 121 Each of the inner angles between the 121c and the third region 121c of the outer ring 121 and the first region 121a of the outer ring 121 may be 120 degrees.

Each of the outer ring 121 , the inner ring 122 , the first intermediate member 123 , the second intermediate member 124 , and the third intermediate member 125 may have substantially the same thickness.

The distance between the outer ring 121 and the first intermediate member 123 , the first intermediate member 123 and the second intermediate member 124 , and the second intermediate member 124 and the third intermediate member 125 . The interval and the interval between the third intermediate member 125 and the inner ring 122 may be substantially uniform.

In the above, the first spring member 120 has been described for convenience of description, but the second spring member 140 also has the same shape as the first spring member 120 , so a detailed description thereof will be omitted.

As an example, when observed on the XY plane, the first spring member 120 and the second spring member 140 may be arranged to overlap the same. That is, when observed on the XY plane, the first spring member 120 has a shape (or a clockwise tornado shape) in which the three intermediate members 123, 124, 125 extend toward the center in a clockwise direction, The second spring member 140 also has a shape (or a clockwise tornado shape) in which the three intermediate members extend toward the center in a clockwise direction.

As another example, when viewed on the XY plane, the first spring member 120 and the second spring member 140 may be arranged in reverse in the opposite direction. That is, when observed on the XY plane, the first spring member 120 has a shape (or a clockwise tornado shape) in which the three intermediate members 123, 124, 125 extend toward the center in a clockwise direction, The second spring member 140 has a shape in which three intermediate members extend toward the center in a counterclockwise direction (or a counterclockwise tornado shape).

As described above, according to the present invention, the horizontal shock wave applied to the switchgear is attenuated by the first spring member disposed at the bottom and the second spring member disposed at the top, and the vertical shock wave applied to the switchboard is Attenuated by the third spring member disposed in the middle, and additionally, the horizontal shock wave applied to the switchboard is attenuated by the holes formed along the width direction of the disc of the third spring member, so that the shock wave in any direction is applied to the switchboard Even in the event of an earthquake, it is possible to prevent damage to the switchgear and interruption of power supply by effectively absorbing and mitigating vibrations or shocks generated by earthquakes in response to the direction in which they are transmitted.

Although the above has been described with reference to the embodiments, those skilled in the art can variously modify and change the present invention within the scope without departing from the spirit and scope of the present invention described in the claims below You will understand.

100: shock wave damping structure 110: lower fixing plate
112: upwardly projecting member 120: first spring member
121: outer ring 122: inner ring
123: first intermediate member 124: second intermediate member
125: third intermediate member 130: upper fixing plate
132: downward protruding member 140: second spring member
150: third spring member

Claims (9)

A shock wave attenuating structure disposed between the lower end of the switchboard and the ground to simultaneously attenuate a horizontal shock wave and a vertical shock wave,
The shock wave damping structure,
a first spring member disposed at the lowermost portion and attenuating a horizontal shock wave;
a second spring member disposed on the uppermost portion and attenuating a horizontal shock wave; and
(i) A plurality of donut-shaped disks bent up and down on a plane have a vertically stacked shape while contacting each other at different contact points and are disposed between the first spring member and the second spring member to generate a vertical shock wave and (ii) a third spring member for attenuating a shock wave in a horizontal direction by forming holes in each of the donut-shaped disks along the width direction of the disks,
Each of the first spring member and the second spring member,
outer ring;
inner ring;
a first intermediate member connected to the first region of the outer ring and extending along a region between the outer ring and the inner ring and connected to the first region of the inner ring;
a second intermediate member connected to the second region of the outer ring and extending along a region between the outer ring and the inner ring and connected to the second region of the inner ring; and
It is connected to the third region of the outer ring and extends along the region between the outer ring and the inner ring having a multidirectional cushioning function, characterized in that it comprises a third intermediate member connected to the third region of the inner ring A switchgear equipped with a shock wave damping structure. delete 2. The method of claim 1, wherein the first area of the outer ring and the first area of the inner ring are located on the same radiation, the second area of the outer ring and the second area of the inner ring are located on the same radiation, The third area of the outer ring and the third area of the inner ring are provided with a shock wave damping structure having a multi-directional cushioning function, characterized in that located on the same radiation. 2. The method of claim 1, wherein an inner angle between the first area of the outer ring and a second area of the outer ring, an inner angle between the second area of the outer ring and a third area of the outer ring, a third area of the outer ring and Each of the inner angles between the first regions of the outer ring is a switchgear equipped with a shock wave damping structure having a multidirectional buffer function, characterized in that 120 degrees. According to claim 1, wherein the outer ring, the inner ring, the first intermediate member, the second intermediate member and the third intermediate member each has substantially the same thickness of the shock wave attenuation having a multi-directional cushioning function, characterized in that A switchboard equipped with a structure. The method according to claim 1, wherein a distance between the outer ring and the first intermediate member, a distance between the first intermediate member and the second intermediate member, a distance between the second intermediate member and the third intermediate member, and the third A switchboard provided with a shock wave damping structure having a multidirectional buffer function, characterized in that the interval between the intermediate member and the inner ring is substantially uniform. According to claim 1, wherein each of the first spring member and the second spring member,
A shock wave damping structure having a multidirectional cushioning function, characterized in that three members are spaced apart at the same distance in a circle having a certain radius, are formed in a curved shape in a direction in which the radius is increased, and then extend to an outer circle in contact with the same distance. Equipped switchboard. [Claim 2] The shock wave damping structure having a multidirectional buffering function according to claim 1, further comprising a lower fixing plate having a rectangular plate shape, supporting the first spring member, and fastened to an upper portion of a concrete structure or the like. switched switchboard. [2] The switchgear according to claim 1, further comprising an upper fixing plate having a rectangular plate shape, supporting the second spring member, and fastened to the lower portion of the switchgear. .

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