KR102164663B1 - Panel board assembly having earthquake-proof function - Google Patents

Abstract

Disclosed is a switchgear assembly having an earthquake-proof function, which comprises: a switchgear; an upper bracket fastened to a bottom portion of the switchgear; a lower bracket; a vertical impact force attenuation structure including a damper body portion and installed between the upper bracket and the lower bracket; and a horizontal impact force attenuation structure including a plurality of plate springs and disposed to surround the damper body portion. The horizontal impact force attenuation structure further has a petri dish shape and includes a storage case for storing the plate springs. Each of the plate springs has an arc shape and is disposed so that a convex portion is in contact with the damper body portion, wherein one end of the arc shape is fixed to the storage case, the other end of the arc shape is disposed in an idle status, and the convex portion of the arc shape is disposed to be in contact with the damper body portion. The plate springs include a first plate spring; a second plate spring; a third plate spring; a fourth plate spring; a fifth plate spring; and a sixth plate spring. A first bottom hole is formed on a bottom portion of the storage case to correspond to a first fastening hole formed on a first wing portion of the damper body portion, and a second bottom hole is formed thereon to correspond to a second fastening hole formed on a second wing portion of the damper body portion. In addition, each of screws for fastening is fastened to the first fastening hole of the damper body portion by penetrating a hole formed on the lower bracket and the first bottom hole, and is fastened to the second fastening hole of the damper body portion by penetrating the hole formed on the lower bracket and the second bottom hole.

Description

Switchgear assembly with seismic function {PANEL BOARD ASSEMBLY HAVING EARTHQUAKE-PROOF FUNCTION}

The present invention relates to a switchgear assembly having a seismic function, and more particularly, to a switchgear assembly having a seismic function capable of securing the safety of the switchgear by reducing shock and vibration transmitted from the outside by the occurrence of an earthquake.

In general, it is impossible to receive electricity that can be used directly from a power company, such as a general electric facility with a low voltage of 110V or 220V, because the amount of power required for private electric facilities such as buildings or factories is large. Therefore, in general private electric facilities, high voltage of 3,300V or 6,600V must be received from the distribution line of a substation and converted back to commercial voltage.Especially, in private electric facilities of large buildings, 22.9kV of extra high voltage is received and converted back to commercial voltage. It has to be done, and the device that makes this possible is the switchboard.

These switchgears include power receiving facilities for receiving high and extra-high voltage supplied from a substation, substation facilities for stepping down the high-voltage and extra-high voltage received from the substation to commercial voltage, and electric equipment or lighting of each part of the building. It includes a distribution facility for supplying to the same and a case for accommodating the power receiving facility, the substation facility, and the distribution facility, and is generally installed fixed to the ground. Therefore, in the conventional switchgear, mechanical vibration or vibration due to an earthquake is transmitted to the switchgear as it is.

For the reason that the switchgear as described above is installed on the ground, if a vibration or shock occurs due to mechanical vibration or earthquake, the power equipment inside the switchboard, wiring connecting these power devices, and electrical components such as protection relays are damaged or damaged. It is easy to do, and the power supply may be interrupted and a fire may be caused by a failure caused accordingly.

Recently, many people and national damages have occurred due to large and small earthquakes in various regions of the world, and such signs are also occurring in Korea, which has been classified as a relatively safe zone, so a seismic design for switchgear is required.

In the case of the switchgear seismic device adopting a spring developed in consideration of this point, it is pointed out that the efficiency is very low because the vibration absorption amount is limited because it simply relies on the spring for vertical vibration.

On the other hand, in the case of a cylindrical seismic device using an orifice piston structure, a piston in which orifice holes of different diameters are alternately arranged uniformly to control the flow of internal fluid, and a two-cylinder type seismic device in which the piston is accommodated is installed at the bottom of the switchboard. By attaching it to, the shock and vibration transmitted from the outside can be uniformly reduced, and the stability of the switchgear can be secured.

However, in the case of such a cylindrical seismic device, since a fluid such as silicone oil is present in the seismic device, there is a problem that the silicone oil is often leaked to the outside of the seismic device when installed on site.

In consideration of this, the Applicant implemented a piston by arranging damper washers of different diameters to control the air flow inside, and by installing a cylindrical seismic structure in which the piston is accommodated in the lower part of the switchboard, A seismic structure has been invented that can ensure the safety of the switchgear by uniformly reducing the shock and vibration transmitted from it.

However, the above-described seismic structure mainly attenuates shock or vibration in the vertical direction, that is, in the Z-axis direction, but has a disadvantage in that it is vulnerable to shock or vibration in the horizontal direction such as the X-axis direction or the Y-axis direction.

0001) Korean Patent Registration No. 10-1608689 (2016. 03. 29.) (seismic structure) 0002) Korean Patent Laid-Open Publication No. 10-2019-0009393 (January 28, 2019) (a switchboard equipped with a seismic device using a plate spring and a steel ball (high-voltage panel, low-voltage panel, motor control panel, distribution panel))

Accordingly, the technical problem of the present invention is focused on this point, and the object of the present invention is to attenuate shock or vibration in the vertical direction, that is, in the Z-axis direction, but in the horizontal direction such as the X-axis direction or the Y-axis direction. It is to provide a switchgear having a seismic structure capable of attenuating even shock or vibration.

In order to realize the above object of the present invention, the switchgear assembly having a seismic function according to an embodiment includes a switchgear, an upper bracket, a lower bracket, a vertical impact force attenuation structure, a horizontal impact force attenuation structure, a first screw, and a second screw. Include. The upper bracket is fastened to the bottom of the switchboard. The lower bracket is fastened to the ground. The vertical impact force attenuation structure includes a damper body, and is installed between the upper bracket and the lower bracket to attenuate vibration or impact force applied to the switchboard in a direction perpendicular to the ground. The horizontal impact force reduction structure essentially includes a storage case, a first leaf spring, a second leaf spring, a third leaf spring, a fourth leaf spring, a fifth leaf spring, and a sixth leaf spring, and the switchgear Vibration or impact force applied in the horizontal direction is attenuated from being applied to the switchgear through the vertical impact force attenuating structure. The storage case has a Petri dish shape including a bottom portion and an outer wall, and a first bottom hole formed in the bottom portion and a second bottom hole formed in the damper body portion corresponding to a first fastening hole formed in the first wing portion of the damper body portion. It has a second bottom hole formed in the bottom portion corresponding to the second fastening hole formed in the wing portion. The first leaf spring has an arc shape, one end is fixed to the storage case, a convex portion is in contact with the first side surface of the damper body, and the other end is disposed in an idle state. The second leaf spring has an arc shape, one end is fixed to the storage case, a convex portion is in contact with the second side surface of the damper body, and the other end is disposed in an idle state. The third leaf spring has an arc shape, one end is fixed to the storage case, a convex portion is in contact with one side of the first wing portion of the damper body portion, and the other end is disposed in an idle state. The fourth leaf spring has an arc shape, one end is fixed to the storage case, a convex portion is in contact with the other side of the first wing and the other end is disposed in an idle state. The fifth leaf spring has an arc shape, one end is fixed to the storage case, a convex portion is in contact with one side of the second wing portion of the damper body portion, and the other end is disposed in an idle state. The sixth leaf spring has an arc shape, one end is fixed to the storage case, a convex portion is in contact with the other side of the second wing and the other end is disposed in an idle state. The first screw passes through the hole formed in the lower bracket and the first bottom hole and is fastened to the first fastening hole of the damper body. The second screw passes through the hole formed in the lower bracket and the second bottom hole and is fastened to the second fastening hole of the damper body.

According to the switchgear assembly having such a seismic function, a vertical shock force attenuation structure is disposed between the upper bracket and the lower bracket to reduce vibration or impact force applied to the switchgear in a direction perpendicular to the ground (that is, in the Z-axis direction). In addition, by arranging a horizontal impact force attenuation structure including a plurality of leaf springs so as to surround the damper body portion of the vertical impact force attenuation structure, the switchboard is placed in a horizontal direction relative to the ground (ie, in the X-axis direction or Y-axis direction). The applied vibration or impact force can be attenuated.

1 is an exploded perspective view for explaining a switchgear assembly according to the present invention.
2A is a perspective view for explaining the vertical impact force attenuation structure shown in FIG. 1, and FIG. 2B is an exploded perspective view for explaining the vertical impact force attenuation structure shown in FIG. 2A.
3A and 3B are an exploded perspective view and a plan view for explaining a first embodiment of a horizontal shock force attenuating structure for accommodating the vertical shock force attenuating structure shown in FIG. 1.
4A and 4B are an exploded perspective view and a plan view for explaining a second embodiment of the horizontal impact force attenuating structure for accommodating the vertical impact force attenuating structure shown in FIG. 1.
5A and 5B are an exploded perspective view and a plan view for explaining a third embodiment of the horizontal impact force attenuating structure for accommodating the vertical impact force attenuating structure shown in FIG. 1.
6A and 6B are an exploded perspective view and a plan view for explaining a fourth embodiment of a horizontal impact force attenuating structure for accommodating the vertical impact force attenuating structure shown in FIG. 1.

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

In describing each drawing, similar reference numerals have been used for similar elements. In the accompanying drawings, the dimensions of the structures are shown to be enlarged compared to the actual size for clarity of the present invention.

Terms such as first and second may be used to describe various components, but the components should not be limited by the terms. These terms are used only for the purpose of distinguishing one component from another component. For example, without departing from the scope of the present invention, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element. Singular expressions include plural expressions unless the context clearly indicates otherwise.

In the present application, terms such as "comprise" or "have" are intended to designate the presence of features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, but one or more other features. It is to be understood that the presence or addition of elements or numbers, steps, actions, components, parts, or combinations thereof, does not preclude in advance the possibility of being added.

In addition, unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by those of ordinary skill in the art to which the present invention belongs. Terms as defined in a commonly used dictionary should be interpreted as having a meaning consistent with the meaning in the context of the related technology, and should not be interpreted as an ideal or excessively formal meaning unless explicitly defined in this application. Does not.

1 is an exploded perspective view for explaining a switchgear assembly according to the present invention.

Referring to FIG. 1, the switchgear assembly assembly according to the present invention includes a switchgear 200, an upper bracket 300, a lower bracket 400, a vertical impact force attenuation structure 100, and a horizontal impact force attenuation structure 500.

The switchboard 200 includes a case 210, a door 220 configured on the side of the case 210 to be opened and closed, and an electric device (not shown) installed inside the case 210. The switchboard 200 converts an extra high voltage of 6,600V to 22,900V into a low voltage such as 380V and 220V, and supplies the necessary power to a group power consumer such as a school, a building, an apartment complex, or a factory.

The upper bracket 300 is disposed along one side of the bottom of the switchboard 200. The upper bracket 300 includes a first bracket 310 disposed along one side of the bottom of the switchboard 200 and a second bracket 320 disposed along the other side parallel to one side of the bottom of the switchboard 200 do. In this embodiment, both edge portions extending in the width direction in each of the first bracket 310 and the second bracket 320 are bent downward, that is, toward the lower bracket 400.

Each of the first bracket 310 and the second bracket 320 is formed with a first bracket hole 330 formed to correspond to a screw thread formed in the shaft member of the vertical impact force attenuation structure 100. A first screw 340 penetrating the bottom surface of the case 210 is passed through the first bracket hole 330 and is fastened to the thread of the shaft member.

The lower bracket 400 is fixed to the ground and disposed along the upper bracket 300 to be fitted to the upper bracket 300. The lower bracket 400 is disposed along the first bracket 310 and fitted to the first bracket 310 and the third bracket 410 and the second bracket 320 are disposed along the second bracket 320. It includes a fourth bracket 420 fitted. In this embodiment, both edge portions extending in the width direction in each of the third bracket 410 and the fourth bracket 420 are bent upward, that is, toward the upper bracket 300. In this embodiment, the width of each of the third bracket 410 and the fourth bracket 420 is implemented to be smaller than the width of each of the first bracket 310 and the second bracket 320, the third bracket 410 and Each of the fourth brackets 420 is inserted into the first brackets 310 and the second brackets 320, respectively.

Each of the third bracket 410 and the fourth bracket 420 is formed with a second bracket hole (not shown) formed to correspond to a wing hole formed in the wing portion of the damper body portion of the vertical impact force attenuation structure 100. A second screw 430 penetrating downward is passed through the second bracket hole and is fastened to the wing hole formed in the wing portion.

The vertical impact force attenuation structure 100 includes a damper body portion, and is installed between the upper bracket 300 and the lower bracket 400 to buffer an impact force or vibration in a vertical direction acting on the switchboard 200 against the ground.

The horizontal impact force attenuation structure 500 includes a plurality of leaf springs, and is disposed so as to surround the vertical impact force attenuation structure 100, that is, the damper body, so as to provide a horizontal impact force or vibration acting on the switchboard 200 against the ground. Buffer.

2A is a perspective view for explaining the vertical impact force attenuation structure shown in FIG. 1, and FIG. 2B is an exploded perspective view for explaining the vertical impact force attenuation structure shown in FIG. 2A.

1, 2A and 2B, the vertical impact force attenuation structure 100 is installed between the bottom of the switchboard 200 and the ground, and a damper body to attenuate the impact force or vibration acting on the switchboard 200. A portion 110, a lower damper washer portion 120, a damper piston 130, an upper damper washer portion 140, and a damper cover portion 150.

The damper body part 110 includes a cylinder part 112 formed with a circular hollow, a first wing part 114 formed on one side of the cylinder part 112, and a second wing part 116 formed on the other side of the cylinder part 112. ). The cylinder part 112 may have a cylindrical shape, and a hollow is formed therein. A hollow hole having a size smaller than the diameter of the hollow formed therein is formed in the bottom portion of the cylinder unit 112. A first body fastening hole 112a, a second body fastening hole 112b, a third body fastening hole 112c, and a fourth body fastening hole 112d are formed in the top part of the cylinder part 112.

The lower damper washer part 120 has a donut shape and is disposed in the hollow of the cylinder part 112. The lower damper washer part 120 has a donut shape and a first damper washer 122 disposed in the hollow of the cylinder part 112, and a second damper washer disposed on the first damper washer 122 having a donut shape. Includes 124.

In this embodiment, the diameter of the inner hole of the first damper washer 122 may be different from the diameter of the inner hole of the second damper washer 124. That is, the diameter of the inner hole of the first damper washer 122 may be larger than the diameter of the inner hole of the second damper washer 124. Meanwhile, the diameter of the inner hole of the first damper washer 122 may be smaller than the diameter of the inner hole of the second damper washer 124. Accordingly, when the first damper washer 122 and the second damper washer 124 are disposed in the hollow of the damper body portion 110, a predetermined space may be formed. The formed space may play a role of buffering impact or vibration. For example, the impact force or vibration transmitted from the bottom is vertically absorbed by the first damper washer 122 and the second damper washer 124, respectively, and horizontally absorbed by the predetermined space. Accordingly, even if a buffer material made of a material such as oil is not injected into the cylinder, air in a predetermined space serves as a buffer material. Therefore, oil leakage does not occur.

The damper piston 130 has a shaft member 132 having a predetermined length with a thread therein, and a stepped member 134 formed between the lower end of the shaft member 132 and the middle part of the shaft member 132, and the cylinder part ( It is inserted into the hollow of 112 and penetrates through the lower damper washer and is exposed to a hole formed in the bottom of the damper body 110.

The upper damper washer part 140 has a donut shape and is inserted into the hollow of the cylinder part 112 and is disposed on the stepped member 134 of the damper piston 130. The upper damper washer part 140 has a donut shape and a third damper washer 142 inserted into the hollow of the cylinder part 112 and disposed on the stepped member 134 of the damper piston 130, and a donut shape. It includes a fourth damper washer 144 inserted into the hollow of the cylinder part 112 and inserted into the shaft member 132 of the damper piston 130 and disposed on the third damper washer 142.

In this embodiment, the diameter of the third damper washer 142 may be smaller than the diameter of the fourth damper washer 144. Therefore, when the third damper washer 142 and the fourth damper washer 144 are disposed in the hollow of the damper body portion 110, a predetermined space may be formed. The formed space may play a role of buffering impact or vibration. For example, the impact force or vibration transmitted from the bottom is vertically absorbed by the third damper washer 142 and the fourth damper washer 144, respectively, and horizontally absorbed by the predetermined space. Accordingly, even if a buffer material made of a material such as oil is not injected into the cylinder, air in a predetermined space serves as a buffer material. Therefore, oil leakage does not occur.

In this embodiment, the depth of the hollow of the cylinder part 112 is the thickness of the first damper washer 122, the thickness of the second damper washer 124, the thickness of the stepped member 134 of the damper piston 130, It may be equal to the sum of the thickness of the 3 damper washer 142 and the thickness of the fourth damper washer 144.

The damper cover part 150 is disposed on the damper body part 110 to join the upper damper washer part 140, and exposes the shaft member 132 of the damper piston 130 by a predetermined height through a hole formed in the central part. . A first cover hole 154a, a second cover hole 154b, a third cover hole 154c, and a fourth cover hole 154d are formed at the edge of the damper cover part 150. Each of the first cover hole 154a, the second cover hole 154b, the third cover hole 154c, and the fourth cover hole 154d is a first body fastening hole 112a formed in the top portion of the cylinder part 112 , Corresponding to the second body fastening hole 112b, the third body fastening hole 112c, and the fourth body fastening hole 112d.

The vertical impact force attenuation structure 100 further includes a fastening portion 160 for fastening the damper body portion 110 and the damper cover portion 150 to each other. In this embodiment, the fastening part 160 penetrates through the first cover hole 154a and is fastened to the first body fastening hole 112a of the damper body part 110, the first screw 162, the second cover The damper body portion 110 penetrates through the hole 154b and penetrates through the second screw 164 and the third cover hole 154c to be fastened to the second body fastening hole 112b of the damper body portion 110. The fourth body fastening hole 112d of the damper body 110 by penetrating through the third screw 166 and the fourth cover hole 154d fastened to the third body fastening hole 112c of Includes screw 168.

Referring back to FIG. 1, the horizontal impact force attenuation structure 500 includes a plurality of leaf springs, and is disposed so as to surround the damper body portion 110 of the vertical impact force attenuation structure 100 so that the power distribution board 200 is placed against the ground. It buffers vibration or impact force applied in the vertical direction.

In the above, it has been described that the vertical impact force attenuation structure and the horizontal impact force attenuation structure according to the present invention are employed under the switchboard to buffer the impact force or vibration transmitted from the ground, but the vertical impact force attenuation structure and the horizontal impact force attenuation structure can be applied in various ways. have. For example, it may be employed in piers or buildings requiring seismic design.

Each of FIGS. 3A and 3B is an exploded perspective view and a plan view for explaining a first embodiment of a horizontal impact force attenuation structure 500 accommodating the vertical impact force attenuation structure 100 shown in FIG. 1. In FIG. 3A, for convenience of explanation, a part of the horizontal impact force attenuation structure 500 made of a metal material is shown in a transparent state.

1 to 3B, the horizontal impact force reduction structure 500 according to the first embodiment includes a first plate spring 511, a second plate spring 512, a third plate spring 513, and a fourth plate. A storage case 590 for accommodating the spring 514, the fifth leaf spring 515, the sixth leaf spring 516, and the first to sixth leaf springs 511, 512, 513, 514, 515, 516 Includes. The first to sixth leaf springs 511, 512, 513, 514, 515, and 516 may be integrally formed in the storage case 590, or may be formed and disposed separately from the storage case 590.

Each of the first to sixth leaf springs 511, 512, 513, 514, 515, and 516 has a U-shape when viewed from a plane, and the convex portion of the damper body portion 110 of the vertical impact force attenuation structure 100 ). One end portion and the other end portion of the U-shaped shape are arranged to contact the damper body portion 110, and the U-shaped convex portion is arranged to contact the inner surface of the storage case 590.

The convex portion of the first plate spring 511 is disposed to contact the first side of the damper body portion 110, and the convex portion of the second plate spring 512 is disposed to contact the second side of the damper body portion 110 And, the convex portion of the third plate spring 513 is arranged to be in contact with the third side of the damper body portion 110, and the convex portion of the fourth plate spring 514 is in contact with the fourth side of the damper body portion 110. Are arranged to be The convex portion of the fifth leaf spring 515 is disposed to contact the edge of one wing portion of the damper body portion 110, and the convex portion of the sixth leaf spring 516 is the other wing of the damper body portion 110. It is arranged to be in contact with the negative edge. In this embodiment, the first leaf spring 511 and the third leaf spring 513 are disposed to face each other, and the second leaf spring 512 and the fourth leaf spring 514 are disposed to face each other. In this embodiment, the fifth leaf spring 515 and the sixth leaf spring 516 are disposed to face each other.

The storage case 590 defines a Petri dish shape (or chalet shape) including a bottom portion and an outer wall. In FIG. 3A, for convenience of explanation, a part of the storage case 590 viewed from the viewpoint of the observer is shown in a transparent state. When viewed from a plane, the first to sixth leaf springs 511, 512, 513, 514, 515, 516 are arranged in the peripheral area of the bottom, and the vertical impact force attenuation structure 100, that is, the vertical impact force attenuation The damper body portion 110 of the structure 100 is disposed. A first bottom hole (not shown) is formed in the bottom portion corresponding to the first fastening hole 114a formed in the first wing portion 114 of the damper body portion 110, and the second bottom hole of the damper body portion 110 A second bottom hole (not shown) is formed corresponding to the second fastening hole 116a formed in the wing portion 116. Accordingly, the screw for fastening may pass through the hole formed in the lower bracket 400 and the first bottom hole of the storage case 590 to be fastened to the first fastening hole of the damper body part 110. Further, the screw for fastening may pass through the hole formed in the lower bracket 400 and the second bottom hole of the storage case 590 and may be fastened to the second fastening hole of the damper body part 110.

In the case of the vertical impact force attenuation structure 100 and the horizontal impact force attenuation structure 500 shown in FIGS. 3A and 3B, the first to sixth plates of the horizontal impact force attenuation structure 500 even if the impact force caused by an earthquake is applied in the horizontal direction. The springs 511, 512, 513, 514, 515, and 516 are buffered, and a horizontal shock wave applied to the switchboard 200 disposed above may be attenuated or minimized. In addition, even if the impact force caused by the earthquake is applied in the vertical direction, the vertical impact force attenuating structure 100 is buffered, and a vertical shock wave applied to the switchboard 200 disposed above can be attenuated or minimized.

Each of FIGS. 4A and 4B is an exploded perspective view and a plan view for explaining a second embodiment of a horizontal impact force attenuating structure 500 accommodating the vertical impact force attenuating structure 100 shown in FIG. 1. In FIG. 4A, for convenience of explanation, a part of the horizontal impact force attenuating structure 500 made of a metal material is shown in a transparent state.

1 to 2B, 4A, and 4B, the horizontal impact force attenuation structure 500 according to the second embodiment includes a first leaf spring 521, a second leaf spring 522, and a third leaf spring. 523), the fourth leaf spring 524, the fifth leaf spring 525, the sixth leaf spring 526, the seventh leaf spring 527, the eighth leaf spring 528, the first to eighth leaf springs It includes a storage case 590 for storing them (521, 522, 523, 524, 525, 526, 527, 528). The first to eighth leaf springs 521, 522, 523, 524, 525, 526, 527, 528 may be integrally formed in the storage case 590, or may be formed and disposed separately from the storage case 590. I can.

Each of the first to eighth leaf springs 521, 522, 523, 524, 525, 526, 527, and 528 has a U-shape when viewed from a plan view, so that the convex portion is on the inner surface of the storage case 590. It is arranged to touch. One end and the other end of the U-shape are arranged to be in contact with the damper body part 110 or face the damper body part 110, and the U-shaped convex part is in contact with the inner surface of the storage case 590. Are arranged to be

The convex portion of the first leaf spring 521 is disposed to contact the inner surface of the storage case 590, and one end and the other end of the first leaf spring 521 are disposed to contact the damper body portion 110. The convex portion of the second leaf spring 522 is disposed to contact the inner surface of the storage case 590, and one end and the other end of the second leaf spring 522 are disposed to contact the damper body portion 110. The convex portion of the third leaf spring 523 is disposed to contact the inner surface of the storage case 590, and one end and the other end of the third leaf spring 523 are disposed to contact the damper body portion 110. The convex portion of the fourth leaf spring 524 is disposed to contact the inner surface of the storage case 590, and one end and the other end of the fourth leaf spring 524 are disposed to contact the damper body portion 110.

The convex portion of the fifth leaf spring 525 is disposed to come into contact with the inner surface of the storage case 590, and one end and the other end of the fifth leaf spring 525 are disposed to face the damper body portion 110. In FIG. 4A, the fifth plate spring 525 is disposed in a manner that is fitted in each of a slit formed in a direction perpendicular to the first plate spring 521 and a slit formed in a direction perpendicular to the second plate spring 522. To this end, two slits formed in a vertical direction are formed in the fifth leaf spring 525 to correspond to the first leaf spring 521 and the second leaf spring 522. Meanwhile, a separate slit may not be formed in the fifth leaf spring 525 and may be integrally formed with the first leaf spring 521 and the second leaf spring 522.

The convex portion of the sixth leaf spring 526 is disposed to contact the inner surface of the storage case 590, and one end and the other end of the sixth leaf spring 526 are disposed to face the damper body portion 110. In FIG. 4A, the sixth leaf spring 526 is disposed in a manner that is fitted in each of a slit formed in a direction perpendicular to the third leaf spring 523 and a slit formed in a vertical direction in the fourth leaf spring 524. To this end, two slits formed in the vertical direction are formed in the sixth leaf spring 526 to correspond to the third leaf spring 523 and the fourth leaf spring 524. Meanwhile, a separate slit is not formed in the sixth leaf spring 526, but may be integrally formed with the third leaf spring 523 and the fourth leaf spring 524.

The fifth leaf spring 525 and the sixth leaf spring 526 are disposed to face each other. In the drawings, one end and the other end of the fifth plate spring 525 are shown to be spaced apart from the damper body 110 by a predetermined distance, but may be extended to contact the damper body 110. The fifth leaf spring 525 may be disposed in a manner that is fitted to each of the first leaf spring 521 and the second leaf spring 522.

The convex portion of the seventh plate spring 527 is disposed to contact the damper body portion 110, and one end and the other end of the seventh plate spring 527 are disposed to contact the inner surface of the storage case 590. The convex portion of the eighth leaf spring 528 is disposed to contact the damper body portion 110, and one end and the other end of the eighth leaf spring 528 are disposed to contact the inner surface of the storage case 590. The seventh leaf spring 527 and the eighth leaf spring 528 are disposed to face each other.

The storage case 590 defines a Petri dish shape (or chalet shape) including a bottom portion and an outer wall. In FIG. 4A, for convenience of explanation, a part of the storage case 590 viewed from the viewpoint of the observer is shown in a transparent state. When viewed from a plane, the first to eighth leaf springs 521, 522, 523, 524, 525, 526, 527, 528 are arranged in the periphery of the bottom, and the vertical impact attenuation structure 100, that is, in the central area. , The damper body portion 110 of the vertical impact force attenuation structure 100 is disposed. A first bottom hole (not shown) is formed in the bottom portion corresponding to the first fastening hole 114a formed in the first wing portion 114 of the damper body portion 110, and the second bottom hole of the damper body portion 110 A second bottom hole (not shown) is formed corresponding to the second fastening hole 116a formed in the wing portion 116. Accordingly, the screw for fastening may pass through the hole formed in the lower bracket 400 and the first bottom hole of the storage case 590 to be fastened to the first fastening hole of the damper body part 110. Further, the screw for fastening may pass through the hole formed in the lower bracket 400 and the second bottom hole of the storage case 590 and may be fastened to the second fastening hole of the damper body part 110.

In the case of the vertical impact force attenuating structure 100 and the horizontal impact force attenuating structure 500 shown in FIGS. 4A and 4B, the first to eighth plates of the horizontal impact force attenuating structure 500 even if the impact force caused by an earthquake is applied in the horizontal direction. The springs 521, 522, 523, 524, 525, 526, 527, and 528 are subjected to a buffer treatment, and a horizontal shock wave applied to the switchboard 200 disposed above may be attenuated or minimized. In addition, even if the impact force caused by the earthquake is applied in the vertical direction, the vertical impact force attenuating structure 100 is buffered, and a vertical shock wave applied to the switchboard 200 disposed above can be attenuated or minimized.

5A and 5B are an exploded perspective view and a plan view for explaining a third embodiment of a horizontal impact force attenuating structure 500 accommodating the vertical impact force attenuating structure 100 shown in FIG. 1. In FIG. 5A, for convenience of explanation, a part of the horizontal impact force attenuation structure 500 made of a metal material is shown in a transparent state.

1 to 2B, 5A and 5B, the horizontal impact force attenuation structure 500 according to the third embodiment includes a first leaf spring 531, a second leaf spring 532, and a third leaf spring. 533), the fourth leaf spring 534, the fifth leaf spring 535, the sixth leaf spring 536, the first to sixth leaf springs 531, 532, 533, 534, 535, 536 It includes a storage case (590). The first to sixth leaf springs 531, 532, 533, 534, 535, and 536 may be integrally formed in the storage case 590 or may be formed and disposed separately from the storage case 590. In this embodiment, the first to sixth leaf springs 531, 532, 533, 534, 535, and 536 are disposed in a manner that is fitted to the storage case 590. To this end, grooves are formed in the storage case 590 so that the first to sixth leaf springs 531, 532, 533, 534, 535, and 536 can be fitted, and the first to sixth leaf springs 531 , 532, 533, 534, 535, 536) may also have grooves. Accordingly, one end of the first to sixth leaf springs 531, 532, 533, 534, 535, and 536 may be exposed from the storage case 590 by a predetermined length.

Each of the first to sixth leaf springs 531, 532, 533, 534, 535, and 536 has an arc shape when viewed from a plane, and the convex portion is attached to the damper body portion 110 of the vertical impact force attenuation structure 100. It is arranged to touch. One end of the arc shape is fixed to the storage case 590, the other end of the arc shape is disposed in an idle state, and the convex portion of the arc shape is disposed to contact the damper body portion 110. In this embodiment, each of the first to sixth leaf springs 531, 532, 533, 534, 535, and 536 may have a symmetrical shape or an asymmetrical shape.

The convex portion of the first plate spring 531 is arranged to contact the first side of the damper body portion 110, and the convex portion of the second plate spring 532 is disposed to contact the second side of the damper body portion 110 do. The first leaf spring 531 and the second leaf spring 532 are disposed to face each other with respect to the damper body portion 110. The convex portion of the third leaf spring 533 is disposed so as to be in contact with one side of the first wing portion of the damper body portion 110, and the convex portion of the fourth leaf spring 534 is the first wing portion of the damper body portion 110. It is arranged to be in contact with the other side. The third leaf spring 533 and the fourth leaf spring 534 are disposed to face each other based on the first wing portion. The convex portion of the fifth leaf spring 535 is disposed to contact one side of the second wing portion of the damper body portion 110, and the convex portion of the sixth leaf spring 536 is disposed to contact the other side of the second wing portion. . The fifth leaf spring 535 and the sixth leaf spring 536 are disposed to face each other based on the second wing portion.

The storage case 590 defines a Petri dish shape (or chalet shape) including a bottom portion and an outer wall. In FIG. 5A, for convenience of explanation, a part of the storage case 590 viewed from the viewpoint of the observer is shown in a transparent state. When viewed from a plane, the first to sixth leaf springs 531, 532, 533, 534, 535, 536 are arranged in the periphery of the bottom, and the vertical impact attenuation structure 100, that is, the vertical impact is attenuated in the central area. The damper body portion 110 of the structure 100 is disposed. A first bottom hole (not shown) is formed in the bottom portion corresponding to the first fastening hole 114a formed in the first wing portion 114 of the damper body portion 110, and the second bottom hole of the damper body portion 110 A second bottom hole (not shown) is formed corresponding to the second fastening hole 116a formed in the wing portion 116. Accordingly, the screw for fastening may pass through the hole formed in the lower bracket 400 and the first bottom hole of the storage case 590 to be fastened to the first fastening hole of the damper body part 110. Further, the screw for fastening may pass through the hole formed in the lower bracket 400 and the second bottom hole of the storage case 590 and may be fastened to the second fastening hole of the damper body part 110.

In the case of the vertical impact force attenuating structure 100 and the horizontal impact force attenuating structure 500 shown in FIGS. 5A and 5B, the first to sixth plates of the horizontal impact force attenuating structure 500 even if the impact force caused by an earthquake is applied in the horizontal direction. The springs are buffered, and a horizontal shock wave applied to the switchboard 200 disposed above may be attenuated or minimized. In addition, even if the impact force caused by the earthquake is applied in the vertical direction, the vertical impact force attenuating structure 100 is buffered, and a vertical shock wave applied to the switchboard 200 disposed above can be attenuated or minimized.

6A and 6B are an exploded perspective view and a plan view for explaining a fourth embodiment of a horizontal impact force attenuation structure 500 accommodating the vertical impact force attenuation structure 100 shown in FIG. 1. In FIG. 6A, for convenience of explanation, a part of the horizontal impact force attenuating structure 500 made of a metal material is shown in a transparent state.

1 to 2B, 6A, and 6B, the horizontal impact force attenuation structure 500 according to the fourth embodiment includes a first leaf spring 541, a second leaf spring 542, and a third leaf spring. 543, a fourth leaf spring 544, and a storage case 590 for accommodating the first to fourth leaf springs 541, 542, 543, and 544.

The first plate spring 541 is bent in a vertical direction and is disposed to contact the first side surface of the damper body 110. The second leaf spring 542 is bent in a vertical direction and is disposed to contact the second side surface of the damper body 110 to face the first leaf spring 541. The length connecting the first side and the second side of the damper body 110 is the shortest. The third leaf spring 543 is bent in a vertical direction and is disposed to contact the third side surface of the damper body 110. The fourth plate spring 544 is bent in a vertical direction and is disposed to contact the fourth side surface of the damper body 110 to face the third plate spring 543. The length connecting the third side and the fourth side of the damper body 110 is the longest.

The storage case 590 defines a Petri dish shape (or chalet shape) including a bottom portion and an outer wall. In FIG. 6A, for convenience of explanation, a part of the storage case 590 viewed from the viewpoint of the observer is shown in a transparent state. When viewed from a plane, the first to fourth leaf springs 541, 542, 543, and 544 are disposed in the peripheral area of the bottom, and the vertical impact force attenuation structure 100, that is, the vertical impact force attenuation structure 100, is in the center area. The damper body portion 110 is disposed. A first bottom hole (not shown) is formed in the bottom portion corresponding to the first fastening hole 114a formed in the first wing portion 114 of the damper body portion 110, and the second bottom hole of the damper body portion 110 A second bottom hole (not shown) is formed corresponding to the second fastening hole 116a formed in the wing portion 116. Accordingly, the screw for fastening may pass through the hole formed in the lower bracket 400 and the first bottom hole of the storage case 590 to be fastened to the first fastening hole of the damper body part 110. Further, the screw for fastening may pass through the hole formed in the lower bracket 400 and the second bottom hole of the storage case 590 and may be fastened to the second fastening hole of the damper body part 110.

In the case of the vertical impact force attenuating structure 100 and the horizontal impact force attenuating structure 500 shown in FIGS. 6A and 6B, the first to fourth plates of the horizontal impact force attenuating structure 500 even if the impact force caused by an earthquake is applied in the horizontal direction. The springs 541, 542, 543, and 544 are subjected to buffering treatment, and a horizontal shock wave applied to the switchboard 200 disposed above may be attenuated or minimized. In addition, even if the impact force caused by the earthquake is applied in the vertical direction, the vertical impact force attenuating structure 100 is buffered, and a vertical shock wave applied to the switchboard 200 disposed above can be attenuated or minimized.

As described above, according to the present invention, a vertical impact force attenuating structure is disposed between the upper bracket and the lower bracket to reduce vibration or impact force applied to the switchboard in a vertical direction to the ground (that is, in the Z-axis direction). In addition, by arranging a horizontal impact force attenuation structure including a plurality of leaf springs so as to surround the damper body of the vertical impact force attenuation structure, the switchboard is placed in a horizontal direction with respect to the ground (i.e. ) Can attenuate the applied vibration or impact force.

Although the above has been described with reference to examples, it is understood that those skilled in the art may variously modify and change the present invention without departing from the spirit and scope of the present invention described in the following claims. You can understand.

100: vertical impact force attenuation structure 110: damper body
120: lower damper washer part 130: damper piston
140: upper damper washer part 150: damper cover part
200: switchboard 210: case
220: door 300: upper bracket
400: lower bracket 500: horizontal impact force reduction structure
511, 521, 531, 541: first leaf spring
512, 522, 532, 542: second leaf spring
513, 523, 533, 543: third leaf spring
514, 524, 534, 544: 4th leaf spring
515, 525, 535: 5th leaf spring 516, 526, 536: 6th leaf spring
527: 7th leaf spring 528: 8th leaf spring
590: storage case

Claims (1)

Switchgear;
An upper bracket fastened to the bottom of the switchgear;
A lower bracket fastened to the ground;
A vertical shock force attenuating structure including a damper body and installed between the upper bracket and the lower bracket to reduce vibration or impact force applied to the switchboard in a direction perpendicular to the ground;
(i) a first bottom hole formed in the bottom portion and a second wing portion of the damper body portion corresponding to the first fastening hole formed in the first wing portion of the damper body portion, having a Petri dish shape including a bottom portion and an outer wall A storage case having a second bottom hole formed in the bottom portion corresponding to a second fastening hole formed in the portion, and (ii) has an arc shape, one end is fixed to the storage case, and a convex portion is a first side surface of the damper body portion A first leaf spring in contact with and the other end is arranged in an idle state, and (iii) has an arc shape, one end is fixed to the storage case, a convex part is in contact with the second side of the damper body and the other end is arranged in an idle state And (iv) a third leaf spring having an arc shape, one end fixed to the storage case, a convex portion contacting one side of the first wing portion of the damper body portion and the other end disposed in an idle state; , (v) a fourth plate spring having an arc shape, one end fixed to the storage case, a convex portion contacting the other side of the first wing portion, and the other end disposed in an idle state, and (vi) an arc shape, A fifth leaf spring having one end fixed to the storage case, a convex portion in contact with one side of the second wing portion of the damper body portion and the other end disposed in an idle state, and (vii) have an arc shape, and one end portion is attached to the storage case. Essentially includes a sixth leaf spring that is fixed and the convex portion is in contact with the other side of the second wing portion and the other end portion is arranged in an idle state, and a vibration or impact force applied to the switchgear in a horizontal direction relative to the ground reduces the vertical impact force. A horizontal impact force attenuating structure for attenuating what is applied to the switchboard via the structure-The first to sixth plate springs are disposed to be spaced apart from each other, and the first plate spring and the second plate spring are based on the damper body part. Arranged to face each other, the third leaf spring and the fourth leaf spring are arranged to face each other based on the first wing portion, and the fifth leaf spring and the sixth leaf spring are the second wing portion Arranged to face each other on the basis of;
A first screw penetrating the hole formed in the lower bracket and the first bottom hole and fastened to the first fastening hole of the damper body; And
And a second screw that penetrates through the hole formed in the lower bracket and the second bottom hole and is fastened to the second fastening hole of the damper body.

Images