KR102472187B1 - Switchgear with 3 axis vibration reduction device including left up stress reduction - Google Patents

Abstract

The present invention relates to a switchboard having a three-axis vibration reduction device including lift-up stress reduction, comprising: an upper panel forming the lower surface of the switchboard; a lower panel arranged below the upper panel to be spaced apart from the upper panel and placed on the ground; a plurality of upper buffering parts located inside the switchboard, and each having a first buffering plate arranged above the upper panel to be spaced apart from the upper panel, and a plurality of first screw parts elastically coupled to the first buffering plate; a plurality of lower buffering parts, each having a second buffering plate located on the upper surface of the lower panel and a plurality of second screw parts elastically coupled to the second buffering plate; and a spherical elastic part provided between the second buffering plate and the upper panel. The switchboard having a three-axis vibration reduction device including lift-up stress reduction according to the present invention includes the upper buffering parts provided inside the switchboard and the lower buffering parts provided outside the switchboard to mitigate vibration while interlinking at both the upper and lower parts based on the bottom surface (upper panel) of the switchboard, thereby facilitating the attenuation of vibration caused by earthquakes from various directions such as front-rear, left-right, and up-down.

Description

Switchgear with 3 axis vibration reduction device including left up stress reduction

The present invention relates to a switchgear having a three-axis vibration damping device including a lift-up stress damping device for damping vibration applied to a switchgear to protect the switchgear when an earthquake occurs.

In general, a switchgear is an electrical facility that safely supplies industrial power to users, and is a device used to monitor, control, and protect an electrical system when receiving and distributing power sent from a power plant or substation to a user.

In other words, switchgear is a facility necessary to receive high-voltage electricity in a place where a lot of power is needed, and converts the high-voltage electricity delivered from the power plant into a voltage that can be used in the facility, and goes to the distribution panel at each location in the facility through the trunk line. distribute

Such a switchgear is composed of a structure for attaching and supporting unit devices such as circuit breakers or protection relays, and an assembly of conductors connecting and connecting unit devices, and these various electrical devices are safely insulated and housed in a rectangular steel enclosure.

Since the switchgear is fixedly installed on the ground, there is a problem in that when an earthquake occurs, the frame of the switchgear is deformed by the impact of seismic waves, and various electrical devices installed inside the switchgear may be damaged. In other words, when an earthquake occurs, the vibrations generated by the earthquake are transmitted to the switchgear installed on the ground as it is, and parts such as power transmission means and power devices assembled inside the switchgear are damaged and damaged by the shock caused by the vibration. do.

Recently, as the frequency of occurrence of earthquakes increases in Korea, the demand for earthquake-resistant switchgear is increasing. To this end, a vibration damping device for damping vibration of the switchgear has been developed. However, in the case of the conventional vibration damping device, there is a disadvantage in that it is difficult to smoothly attenuate vibrations generated in various directions because the vibration damping device is disposed below the outer side of the switchgear. Accordingly, there is a need for a switchgear vibration damping device for easily damping earthquake vibrations generated in various directions such as front and rear, left and right, and up and down.

In particular, since the conventional switchboard vibration damping device has a structure that is vulnerable to vibration in the vertical direction that goes down to the ground, when vertical vibration is applied to the switchboard, a large impact is applied to the installation surface of the switchboard and it is damaged, or the switchboard collapses and malfunctions can be a cause of

Accordingly, the applicant of the present invention has proposed the present invention, and as a related prior art document, Korean Patent Publication No. 10-2198671 'seismic device for switchboard' is provided.

The present invention was created to solve the above problems, and a switchgear having a three-axis vibration damping device including a lift-up stress damping device that is easy to damp vibration of an earthquake generated in various directions such as front and rear, left and right, and up and down. It aims to provide

In addition, when the ground sinks due to an earthquake with vertical vibration, the switchboard has a three-axis vibration damping device including a lift-up stress damping device configured to prevent the switchboard from moving or falling down at a set position and to prevent damage to the installation surface. It aims to provide

A switchgear having a three-axis vibration damping device including a lift-up stress damper according to an embodiment of the present invention for achieving the above object includes an upper panel constituting a lower surface of the switchgear; a lower panel spaced apart from the lower side of the upper panel and disposed on the ground; a plurality of upper buffer parts including a first buffer plate disposed inside the switchgear and spaced apart from the upper side of the upper panel, and a plurality of first screw parts elastically coupled to the first buffer plate; a plurality of lower buffer parts including a second buffer plate disposed on an upper surface of the lower panel and a plurality of second screw parts elastically coupled to the second buffer plate; and a spherical elastic part provided between the second buffer plate and the upper panel.

Here, the upper buffer part is disposed between the first buffer plate and the upper panel, and includes a plurality of first elastic bodies respectively disposed on outer circumferences of the plurality of first screw parts.

In addition, the lower buffer part is disposed between the second buffer plate and the upper panel, and includes a plurality of second elastic bodies respectively disposed on outer circumferences of the plurality of second screw parts.

Meanwhile, the switchgear having the 3-axis vibration damping device including the lift-up stress damping device may be disposed on an upper surface of the upper panel, and may further include an auxiliary panel supporting the first elastic body.

And, in the plurality of first screw parts, one end of the screw head is disposed on the upper surface of the first buffer plate, and the other end is screwed to the second buffer plate, and the plurality of second screw parts have one end of the screw head on the lower part. It is disposed on the lower side of the panel, and the other end is preferably screwed to the auxiliary panel.

In addition, it is preferable that the plurality of second screw parts are coupled to an inner side of the coupling position of the plurality of first screw parts based on the center of the second buffer plate.

On the other hand, it is preferable that the second buffer plate is concavely formed in the center to further form an elastic groove in which the elastic part is disposed.

In the switchboard having a three-axis vibration damping device including lift-up stress damping according to the present invention, an upper buffer part is provided inside the switchboard and a lower buffer part is provided outside the switchboard, so that the upper part is provided relative to the lower surface (upper panel) of the switchboard. And since the vibration can be alleviated while interlocking with each other at the bottom, it is easy to attenuate the vibration of the earthquake generated in various directions such as front and rear, left and right, and up and down.

In addition, the elastic part is provided to support the load of the switchgear, preventing the reduction in the lifespan of the first and second screw parts and the first and second elastic bodies of the upper buffer part and the lower buffer part due to the continuous load of the switchgear. It is high and formed in a spherical shape, enabling efficient support in response to vibrations applied in various directions.

1 is a perspective view schematically showing a switchgear having a three-axis vibration damping device including a lift-up stress damper according to an embodiment of the present invention;
2 is a cross-sectional view showing a part of a switchgear having a three-axis vibration damping device including a lift-up stress damper of FIG. 1;
FIG. 3 is a cross-sectional view taken along line A-A' of the switchgear having the 3-axis vibration damping device including the lift-up stress damper of FIG. 2 .

Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the accompanying drawings. Prior to this, the terms or words used in this specification and claims should not be construed as being limited to the usual or dictionary meaning, and the inventor appropriately uses the concept of the term in order to explain his/her invention in the best way. Based on the principle that it can be defined, it should be interpreted as meaning and concept consistent with the technical spirit of the present invention.

Therefore, the embodiments described in this specification and the configurations shown in the drawings are only the most preferred embodiments of the present invention, and do not represent all of the technical ideas of the present invention, so at the time of this application, they are equivalent alternatives that can be replaced. It should be understood that variations may exist.

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

The switchboard 10 having a 3-axis vibration damping device including lift-up stress damping device according to an embodiment of the present invention (hereinafter, the switchboard 10 having a vibration damping device) is used in a situation where vibration occurs on the ground such as an earthquake. It is provided to protect the switchgear by damping vibration applied to the switchgear, and the switchgear is preferably a rectangular parallelepiped enclosure in which various parts are combined and stored. In addition, the switchgear 10 having the vibration damping device of the present invention has been described as having the vibration damping device on the switchgear, but it is not limited thereto, and in addition to the switchboard, a rectangular parallelepiped shape in which a plurality of power devices such as a motor control panel and a switchboard are combined and stored. will be applicable to all enclosures of

1 to 3, in the switchboard 10 having the vibration damping device, the vibration damping device is provided below the switchboard F, and includes an upper panel 100, a lower panel 200, and a plurality of upper parts. It includes a buffer part 300, a plurality of lower buffer parts 400 and an elastic part 500.

The upper panel 100 constitutes the lower surface of the switchboard F. The upper panel 100 is preferably formed in a rectangular plate, and preferably has an outer circumference protruding downward. The upper panel 100 is formed to correspond to the size of the switchboard F and serves as a lower surface of the switchboard F. Accordingly, electronic devices and components required for the switchgear F may be disposed and supported on the top of the upper panel 100 .

The lower panel 200 is provided on the ground (G) and is spaced apart from the lower side of the upper panel 100 . The lower panel 200 is preferably formed in a rectangular frame shape, and preferably has an outer circumference protruding upward. The square frame shape of the lower panel 200 is preferably formed in a size and shape corresponding to the outer circumference of the upper panel 100 . In other words, the lower panel 200 may be fixedly mounted on the ground (installation surface) using known fastening means such as anchors and bolts.

The plurality of upper buffer units 300 are configured to damp vibration applied to the switchboard F, and are disposed inside the switchboard F. In other words, it is preferable that the plurality of upper buffer units 300 are respectively disposed at the corners of the switchboard F. Therefore, it is preferable that the plurality of upper buffer units 300 are provided at each corner of the rectangular parallelepiped switchboard F, and four are provided. The plurality of upper buffer units 300 is not limited to having four, and may be appropriately added according to the size or weight of the switchgear F. At this time, the added upper buffer part 300 is preferably disposed along the outer circumference of the upper panel 100 according to the shapes of the upper panel 100 and the lower panel 200 . The plurality of upper buffer parts 300 include a first buffer plate 310, a plurality of first screw parts 320, and a plurality of first elastic bodies 330.

The first buffer plate 310 is disposed inside the switchboard F and spaced apart from the upper side of the upper panel 100 . The first buffer plate 310 is preferably formed of a metal plate, and preferably has an outer circumference protruding downward. Screw holes through which a plurality of first screw parts 320 are coupled may be further formed in the first buffer plate 310 .

The plurality of first screw parts 320 are elastically coupled to the first buffer plate 310 . In other words, in the plurality of first screw parts 320, one end of the first screw head 321 is disposed on the upper surface of the first buffer plate 310, and the other end is attached to the second buffer plate 410 to be described later. screwed in and fixed. The second buffer plate 410 is a configuration of a lower buffer part 400 to be described later, and the upper buffer part 300 and the lower buffer part 400 are connected and fixed by the plurality of first screw parts 320. can That is, the plurality of first screw parts 320 can be coupled to the second buffer plate 410 by penetrating the upper panel 100 and the auxiliary panel 600 to be described later,

The plurality of first elastic bodies 330 are for elastically coupling the plurality of first screw parts 320 and are composed of elastic springs. The first elastic body 330 may be disposed on an outer circumference of the plurality of first screw parts 320 to elastically couple the plurality of first screw parts 320 to each other. Therefore, it is preferable that the inner circumference of the first elastic body 330 has a size corresponding to the outer circumference of the plurality of first screw parts 320 . The first elastic body 330 is disposed between the first buffer plate 310 and the upper panel 100 . The first buffer plate 310 and the upper panel 100 can be spaced apart and elastically supported by the first elastic body 330 .

Meanwhile, the switchgear 10 having the vibration damping device of the present invention may further include an auxiliary panel 600.

The auxiliary panel 600 is disposed inside the switchboard F and is disposed on the top surface of the upper panel 100 . Also, the auxiliary panel 600 is formed of a metal plate. The first elastic body 330 is preferably disposed on the upper surface of the auxiliary panel 600 , and thus the auxiliary panel 600 can support the first elastic body 330 . That is, the first elastic body 330 is preferably provided between the first buffer plate 310 and the auxiliary panel 600, and the first buffer plate 310 is spaced upward from the auxiliary panel 600. and can be elastically supported. It is preferable that the plurality of first screw parts 320 pass through the auxiliary panel 600 . Accordingly, it is preferable that screw holes corresponding to the plurality of first screw parts 320 are formed in the auxiliary panel 600 . In other words, in order to stably arrange the first elastic body 330 on the upper surface of the auxiliary panel 600, the auxiliary panel 600 has an elastic groove (not shown) such that a part of the lower end of the second elastic body 330 is inserted. Poetry) may be configured to be further formed. Since the auxiliary panel 600 is disposed on the upper surface of the upper panel 100 and is formed of a metal plate, it is possible to secure stable rigidity.

The plurality of lower buffer units 400 are configured to damp vibration applied to the switchboard F, and are disposed outside the switchboard F. That is, the plurality of lower buffer units 400 are disposed on the outer lower side of the switchboard F. In other words, it is preferable that the plurality of lower buffer units 400 are respectively disposed at the corner side of the switchboard F. Therefore, it is preferable that the plurality of lower buffer units 400 are provided at each corner of the rectangular parallelepiped switchboard F, and four are provided. The plurality of lower buffer units 400 is not limited to having four, and may be appropriately added according to the size or weight of the switchgear F. At this time, the added lower buffer part 400 is preferably disposed along the outer circumference of the upper panel 100 along the shape of the upper panel 100 and the lower panel 200, and the upper buffer part 300 ) It is preferably arranged to correspond to the number and position of. The lower buffer part 400 includes a second buffer plate 410, a plurality of second screw parts 420, and a plurality of second elastic bodies 430.

The second buffer plate 410 is spaced apart from the lower side of the upper panel 100 and is disposed on the upper surface of the lower panel 200 . The second buffer plate 410 is preferably formed of a metal plate, and preferably has an outer circumference protruding upward. In other words, it is preferable that the first screw part 320 is coupled to the more protruding outer circumference of the second buffer plate 410 . Screw holes through which a plurality of second screw parts 420 are coupled may be further formed in the second buffer plate 410 .

The plurality of second screw parts 420 are elastically coupled to the second buffer plate 410 . In other words, in the plurality of second screw parts 420, one end of the second screw head 421 is disposed below the lower panel 200, and the other end is screwed to the auxiliary panel 600 to be fixed. Therefore, the auxiliary panel 600 and the lower buffer part 400 may be connected and fixed by the plurality of second screw parts 420 . That is, the plurality of second screw parts 420 may pass through the lower panel 200 , the second buffer plate 410 and the upper panel 100 to be coupled to the auxiliary panel 600 .

The plurality of second elastic bodies 430 are for elastically coupling the plurality of second screw parts 420, respectively, and are composed of elastic springs. The second elastic body 430 may be disposed on an outer circumference of the plurality of second screw parts 420 to elastically couple the plurality of second screw parts 420 . Accordingly, it is preferable that the inner circumference of the second elastic body 430 has a size corresponding to the outer circumference of the plurality of second screw parts 420 . The second elastic body 430 is disposed between the second buffer plate 410 and the upper panel 100 . The second buffer plate 410 and the upper panel 100 can be spaced apart and elastically supported by the second elastic body 330 .

On the other hand, referring to FIG. 3, it is preferable that the plurality of second screw parts 420 are coupled to the inner side of the coupling position of the plurality of first screw parts 320 based on the center of the second buffer plate 410. . Therefore, when the first buffer unit 300 disposed inside the switchboard F is disposed outside the second buffer unit 400 disposed outside the switchboard F, and thus damps vibration, they do not interfere with each other. vibration can be damped reliably.

The upper buffer part 300 and the lower buffer part 400 configured as described above cooperate with each other to attenuate multi-directional shocks generated in the switchgear F due to an earthquake.

In particular, the upper buffer part 300 and the lower buffer part 400, when the ground sinks vertically downward due to an earthquake, prevent the switchboard F from moving or falling down on the existing surface of the switchboard F. It is possible to prevent the upper panel 100, which is the lower surface, from being deformed or damaged from an external force. Since the upper panel 100 of the switchboard F plays an important role in supporting various electronic devices provided inside the switchboard F, if the upper panel 100 is deformed from an external force, the inside of the switchboard F It causes damage to electronic devices, so that switchgear (F) cannot perform its function.

In other words, when the ground sinks vertically downward due to an earthquake, the lower shock absorber 400 is stretched and contracted to relieve the impact applied to the upper panel 100, which is the lower surface of the switchgear F, and in conjunction therewith The shock applied to the upper panel 100 can be alleviated by tension and contraction of the upper buffer part 300 . That is, the upper buffer part 300 and the lower buffer part 400 are disposed above and below the upper panel 100 and are configured to interlock with each other to stretch and contract, so that the vibration applied to the upper panel 100 can be effectively attenuated. Due to the above action, the vibration applied to the upper panel 100, which is the lower surface of the switchboard F, is damped to prevent the switchboard F from moving or falling down due to the vibration of the earthquake, and in addition, the upper panel 100 This deformation and breakage can be effectively prevented.

The elastic part 500 is for auxiliary support of the second screw part 420 and the second elastic body 430 supporting the switchgear F disposed away from the ground, and the second buffer plate 410 and the It is provided between the upper panels 100. The elastic part 500 is formed in a spherical shape and may come into contact with the second buffer plate 410 and the upper panel 100 . Since the elastic part 500 is formed in a spherical shape, efficient support is possible in response to vibrations applied in various directions. Meanwhile, the second buffer plate 410 preferably has an elastic groove 411 concavely formed in the center thereof. The elastic part 500 may be disposed in the elastic groove 411 . Therefore, the elastic part 500 can be stably disposed in the elastic groove 411, so that it can be stably supported in the center of the second buffer plate 410. Since the elastic part 500 can support the load of the switchgear F, the first screw part 320, the second screw part 420, and the first elastic body 330 are formed by the continuous load of the switchgear F. and the second elastic body 430 to prevent a decrease in lifespan in advance, resulting in high usage efficiency.

In the switchboard 10 having a vibration damping device according to the present invention, the upper buffer unit 300 is provided inside the switchboard F and the lower buffer unit 400 is provided outside the switchboard F, Vibrations can be alleviated while interlocking with each other in the upper and lower parts of the lower surface (upper panel 100) of (F), so it is easy to attenuate earthquake vibrations generated in various directions such as front and back, left and right, and up and down.

In addition, since the elastic part 500 is provided to support the load of the switchboard F, the first and second screw parts of the upper buffer part 300 and the lower buffer part 400 ( 320 and 420) and the first and second elastic bodies 330 and 430, the use efficiency is high by preventing the lifespan of the first and second elastic bodies 330 and 430 from being reduced.

Although the present invention has been described with reference to the embodiments shown in the drawings, this is only exemplary, and those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom. Therefore, the true technical protection scope of the present invention should be determined by the technical spirit of the appended claims.

10: Switchboard with 3-axis vibration damping device including lift-up stress damping
100: upper panel 200: lower panel
300: upper buffer part 310: first buffer plate
320: first screw portion 321: first screw head
330: first elastic body 400: lower buffer part
410: second buffer plate 411: elastic groove
420: second screw portion 421: second screw head
430: second elastic body 500: elastic part
600: auxiliary panel F: switchgear
G: ground

Claims (7)

An upper panel constituting the lower surface of the switchgear;
a lower panel spaced apart from the lower side of the upper panel and disposed on the ground;
a plurality of upper buffer parts including a first buffer plate disposed inside the switchgear and spaced apart from the upper side of the upper panel, and a plurality of first screw parts elastically coupled to the first buffer plate;
a plurality of lower buffer parts including a second buffer plate disposed on an upper surface of the lower panel and a plurality of second screw parts elastically coupled to the second buffer plate; and
And a spherical elastic part provided between the second buffer plate and the upper panel,
The upper buffer part,
A switchgear having a three-axis vibration damping device including a lift-up stress damping device including a plurality of first elastic bodies disposed between the first buffer plate and the upper panel and disposed around the outer circumference of the plurality of first screw parts. delete An upper panel constituting the lower surface of the switchgear;
a lower panel spaced apart from the lower side of the upper panel and disposed on the ground;
a plurality of upper buffer parts including a first buffer plate disposed inside the switchgear and spaced apart from the upper side of the upper panel, and a plurality of first screw parts elastically coupled to the first buffer plate;
a plurality of lower buffer parts including a second buffer plate disposed on an upper surface of the lower panel and a plurality of second screw parts elastically coupled to the second buffer plate; and
And a spherical elastic part provided between the second buffer plate and the upper panel,
The lower buffer part,
A switchgear having a three-axis vibration damping device including a lift-up stress damping device disposed between the second buffer plate and the upper panel and including a plurality of second elastic bodies respectively disposed on the outer circumference of the plurality of second screw parts. The method of claim 1,
A switchboard having a three-axis vibration damping device disposed on an upper surface of the upper panel and further comprising an auxiliary panel supporting the first elastic body. The method of claim 4,
In the plurality of first screw parts, one end of the screw head is disposed on the upper surface of the first buffer plate and the other end is screwed to the second buffer plate,
The plurality of second screw parts have a three-axis vibration damping device including a lift-up stress damping device in which one end of the screw head is disposed below the lower panel and the other end is screwed to the auxiliary panel. An upper panel constituting the lower surface of the switchgear;
a lower panel spaced apart from the lower side of the upper panel and disposed on the ground;
a plurality of upper buffer parts including a first buffer plate disposed inside the switchgear and spaced apart from the upper side of the upper panel, and a plurality of first screw parts elastically coupled to the first buffer plate;
a plurality of lower buffer parts including a second buffer plate disposed on an upper surface of the lower panel and a plurality of second screw parts elastically coupled to the second buffer plate; and
And a spherical elastic part provided between the second buffer plate and the upper panel,
The plurality of second screw parts,
A switchgear having a three-axis vibration damping device including a lift-up stress damping device coupled to an inner side of a coupling position of the plurality of first screw parts based on the center of the second buffer plate. An upper panel constituting the lower surface of the switchgear;
a lower panel spaced apart from the lower side of the upper panel and disposed on the ground;
a plurality of upper buffer parts including a first buffer plate disposed inside the switchgear and spaced apart from the upper side of the upper panel, and a plurality of first screw parts elastically coupled to the first buffer plate;
a plurality of lower buffer parts including a second buffer plate disposed on an upper surface of the lower panel and a plurality of second screw parts elastically coupled to the second buffer plate; and
And a spherical elastic part provided between the second buffer plate and the upper panel,
The second buffer plate,
A switchgear having a three-axis vibration damping device including a lift-up stress damping device in which an elastic groove is further formed concavely in the center and in which the elastic part is disposed.

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