KR101835567B1 - Seismic device for power supply - Google Patents

Abstract

The present invention relates to a seismic device for safely protecting power equipment such as an uninterruptible power supply by absorbing vibration or impact generated due to earthquake or the vibration of the power equipment itself. The present invention provides a seismic device for power equipment with excellent earthquake-proof and vibration-proof performance, which can protect power equipment from vibration and impact due to earthquake or the like, and effectively absorb and reduce the vibration of the power equipment itself, by installing a plurality of shock mounts as a combination of a spring and a ball, which can vertically move in conjunction with the lower part of the power equipment such as an uninterruptible power supply device or the like and can roll in four directions.

Description

Seismic device for power supply < RTI ID = 0.0 >

More particularly, the present invention relates to an earthquake-resistant apparatus for safely protecting a power supply system such as an uninterruptible power supply apparatus by absorbing vibrations or impact forces generated by earthquakes or the like as well as vibration of a power supply system itself .

Generally, the power supply facilities such as uninterruptible power supply, switchgear, etc. are devices that manipulate, control, and monitor electric facilities such as factories, buildings, hospitals, APT complexes and various industrial facilities requiring electric power so that they can be used safely. Lt; RTI ID = 0.0 > concrete < / RTI >

These power facilities can lose their inherent functions if they are adversely affected by seismic forces that are vibrated in a concrete structure when an earthquake occurs.

For example, power devices such as high-voltage switchgear, current transformer, high-voltage switchgear, transformer, low-voltage distribution circuit breaker, and electric parts such as relays and gauges for power system protection and monitoring are mounted inside the power supply facility.

Inside the power supply facility, besides the power equipment, wiring for measurement and monitoring of the booth bar and power equipment connecting the power equipment according to the power system is arranged. In addition to the power unit main body installed on the floor, A monitoring wiring for each other, and a hole for wiring the load equipment.

If the power supply equipment is installed on the floor of the structure, external vibrations or shocks caused by the earthquake fluctuations may cause damage or damage to the electric equipment inside the power supply equipment, wiring connecting the power equipment and protective relays, etc. So that the interruption of the power supply and the fire can be caused by the failure caused thereby.

Nevertheless, these power plants do not apply the earthquake or vibration design because they are often installed in buildings.

For this reason, the mechanical vibration due to the electromagnetic vibration due to the bottom vibration or the large power energization, or the shock due to the earthquake, is transmitted to the power supply system itself, and even if the seismic design is applied, the production cost has been greatly increased and the seismic design has been delayed.

Recently, the government announced the necessity of earthquake resistance design for buildings with more than 3 stories as well as the advanced earthquake response system through the scientificization of earthquake response measurement equipment in order to respond quickly to the earthquake in Korea, In addition, the government is promoting policies to strengthen seismic design of power supply facilities in order to secure the power supply and demand and prevent power disaster.

According to this tendency, although the earthquake-resistant design including the vibration pad and the dust-proof spring is applied to the power equipment, when the vibration pad or the dust-proof spring is applied to the power equipment having self vibration, the power equipment is fixed so as not to cause vibration However, due to the structure that absorbs the vibration while vibrating together with the vibration of the power equipment, the connection part connected to the power equipment due to the vibration of the power equipment itself is loosened over time.

As an example, Korean Patent No. 10-1377110 discloses a " earthquake-resistant apparatus for a switchboard ".

The above-mentioned " earthquake-proof device for transmission & transmission " refers to an earthquake-proof system that uses a combination of a sphere and a spring to protect a transmission and a transmission system from vibrations or impacts, or a structure in which a sphere is restricted in a base and a spring is interposed between a transmission & In addition, there is a weak point in terms of absorbing vibrations and shocks, such as not being able to expect a joint operating characteristic between a spring and a sphere. Moreover, when the switchboard is inclined to one side, So that a stable supporting force can not be secured.

As another example, Korean Patent No. 10-1011388 discloses " earthquake-resistant design plate and earthquake-resistant design plate ".

The above-mentioned "earthquake-resistant design plate and earthquake-resistant designing plate switchgear" is an earthquake-proof system in which a ball and a spring are disposed between the upper plate and the lower-side plate at the upper side of the apparatus to protect the transformer from vibration at the time of occurrence of vibration or earthquake, And the ball is directly spherically contacted with the upper plate fixed to the ball, and a spring is disposed at the lower portion of the ball. In addition, the space in which the ball and the spring are included is made to be in a vacuum state or an open state by using a valve and an air suction pipe In addition, since the ball is left in the up and down flow of the equipment and the vibration is buffered only depending on the elasticity of the spring, there is a lack of vibration reduction. Especially, in the vacuum state, the upper and lower plates are fixed, It has the disadvantage of not absorbing vibration. (If given the conditions of the normal during the open state can not be bound to the position and movement of the ball there is a disadvantage that this lack of stability at the side for supporting the equipment).

Korean Patent No. 10-1377110 Korean Patent No. 10-1011388

SUMMARY OF THE INVENTION Accordingly, the present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a shock absorber comprising a combination of a spring and a ball capable of upward and downward movement in conjunction with each other, It is possible to protect the power equipment from vibration and shock caused by the earthquake by installing a mount (shock mount), and to absorb and attenuate the self vibration of the power supply system effectively. The purpose is to provide.

In order to achieve the above object, a seismic resistant device of a power supply facility provided in the present invention has the following features.

The earthquake-proof apparatus of the power supply system includes a plurality of shock mounts mounted on the bottom of the structure supporting the bottom of the power supply facility and supporting the power supply facility and protecting the power supply system from vibration or impact.

In particular, the shock mount includes an upper housing fixed to a bottom surface of a power supply unit, the upper housing having an upper spring receiving portion and a lower ball receiving portion formed in parallel to each other along a central axial line, A lower housing fixed to the bottom of the structure and having a wall surrounding the lower end portion of the upper housing, and a lower housing disposed in the ball housing portion of the upper housing, A spring capable of rolling and contacting with a bottom surface of the lower housing, a spring that is located in the spring receiving portion of the upper housing and is capable of compressing and expanding while being in contact with the ball side through the flat plate, A spring finishing plate which is fixed to the upper portion of the spring receiving portion and covers the upper end portion of the spring Lt; / RTI >

Here, the center of the bottom surface of the lower housing in contact with the ball may be an arc-shaped concave ball seating surface, so that the ball can maintain its proper position by being positioned on the axis of the housing.

The bottom surface of the lower housing may be provided with a stopper in the form of a wall standing up along the periphery of the ball receiving surface, thereby regulating the rolling range of the ball.

The earthquake-proof apparatus of the power supply facility provided in the present invention has the following effects.

First, when a shock or vibration occurs in the front, back, left and right, and up and down directions, the spring and the ball of the shock mount are linked to each other to vertically flow and contract / expand, It is possible to equip both the dustproof performance and the seismic performance at the same time even if the power plant is subjected to floor vibration, mechanical vibration or internal shock caused by an earthquake, and thus the devices inside the power supply facility can be safely protected.

Second, by implementing a shock mount having a combination of a ball, a spring, and a housing for housing the shock absorber, the structure of the earthquake-proof device can be simplified, and there is an advantage in maintenance and management.

Third, a stable supporting structure of the power supply system can be secured by applying a structure combining a ball and a spherical surface, which can regulate the exact position of the ball.

Fourth, the high-quality seismic performance can be ensured by absorbing the vibration or shock by using the upward and downward compression and expansion action of the spring and the upward and downward flow action of the ball connected thereto.

Fifth, it can be widely applied to uninterruptible power supply facilities as well as distribution boards, MCC panels, low pressure panels, high pressure panels, transformer panels, and power distribution panels including extra high pressure panels because of simple structure, easy handling and easy maintenance.

1 is a perspective view showing an earthquake-proof apparatus according to an embodiment of the present invention;
2 is a cross-sectional view showing a seismic device according to an embodiment of the present invention
FIGS. 3A to 3C are cross-sectional views showing an operating state of a seismic isolation device according to an embodiment of the present invention;
4 is a front view showing an installation state of an earthquake-proof apparatus according to an embodiment of the present invention;
5 is a side view showing an installed state of a seismic isolation device according to an embodiment of the present invention;

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

FIG. 1 is a perspective view showing a vibration-damping device according to an embodiment of the present invention, and FIG. 2 is a cross-sectional view showing a vibration damping device according to an embodiment of the present invention.

As shown in Figs. 1 and 2, the earthquake-proof device of the power supply facility uses a combination of a spring and a ball to support the bottom of the power supply facility, and a shock caused by floor vibration, mechanical vibration, It is possible to achieve an effective vibration-proof and seismic performance.

To this end, the earthquake-proof apparatus of the power plant supports the bottom surface of the power supply facility 100 such as the uninterruptible power supply system, the distribution board, the MCC, the low pressure, the high pressure, the transformer, And a plurality of shock mounts (10) mounted on the bottom of the housing (110).

The shock mount 10 is installed on the bottom surface of the power supply facility 100 and on the bottom side of the structure 110. The shock mount 10 thus installed supports the power supply facility 100, And protects the power supply facility 100 from vibration or impact transmitted to the facility 100.

The shock mount 10 includes an upper housing 13 fixedly mounted on a bottom surface of a power supply facility (reference numeral 100 in FIG. 4 and FIG. 5).

The upper housing 13 is formed in the shape of a cylindrical housing having a flange 22a around the upper end edge thereof. The flange 22a is installed at the bottom of the power supply facility 100 with a bolt- do.

In the upper housing 13, a spring receiving portion 11 and a ball receiving portion 12 of a coaxial structure that pass through the housing central axis line in parallel and communicate with each other are formed.

The spring accommodating portion 11 and the ball accommodating portion 12 are in a circular hole configuration in which the spring accommodating portion 11 and the ball accommodating portion 12 are in communication with each other. The diameter of the upper spring accommodating portion 11 is relatively larger than the diameter of the lower ball accommodating portion 12 And can be made to have a large diameter.

In the boundary between the large spring receiving portion 11 and the small diameter receiving portion 12, a flat plate seating step 23 is formed at the boundary between the spring receiving portion 11 and the small receiving portion 12, The jaw 23 can be supported by a flat plate 17 to be described later.

In the case of the ball receiving portion 12, the ball 16 is exposed through the bottom of the upper housing 13 as it is. The ball 16 protrudes from the bottom of the upper housing 13, The lower housing 15 can be brought into contact with the lower housing 15 side.

In particular, a ball restricting jaw 25 is formed around the inner periphery of the lower end of the ball receiving portion 12 so that the ball 16 received in the ball receiving portion 12 has its circumferential surface And the ball 16 is prevented from falling downward from the ball demanding portion 12. [0041] As shown in FIG.

A groove portion 24 concentric with the spring receiving portion 11 and the ball receiving portion 12 is formed at the center of the upper surface of the upper housing 13. The grooves 24 are formed in a circular plate shape, The spring finishing plate 19 is installed in a seating and fastening structure. The spring finishing plate 19 installed in this manner presses the upper end of the spring 18 and finishes the spring 18 so as not to be exposed to the outside .

In this case, the spring finishing plate 19 is fastened and fixed by bolts or screws, and the elasticity of the spring 18 can be adjusted according to the degree of fastening.

That is, when the mounting position of the spring finishing plate 19 is raised by adjusting the degree of tightening of the bolt or screw, the spring elasticity can be relatively lowered. When the mounting position of the spring finishing plate 19 is lowered, .

Since the resilience of the springs 18 belonging to each shock mount 10 supporting the power supply facility can be controlled, the center of gravity of the power supply facility can be easily held.

The shock mount 10 also includes a lower housing 15 fixedly mounted on the bottom of the structure (reference numeral 110 in FIGS. 4 and 5).

The lower housing 15 is formed in the form of a disk-like housing having a flange 22b around the upper end edge thereof. The lower housing 15 is disposed coaxially with the lower portion of the upper housing 13, And a bolt or the like is fastened to the bottom of the housing 110.

The center of the bottom surface of the lower housing 15 is formed with an arcuate shape that can hold the ball 16 in the correct position (center position) and guide the rolling motion of the ball 16 A concave ball seating surface 20 is formed.

Accordingly, when vibration and shock are applied to the power supply facility 100, the ball 16 can roll in a 360 ° direction in all directions while riding on an arc-shaped ball seating surface 20, It is possible to effectively absorb or reduce vibrations or shocks transmitted to the power supply facility 100. In addition, when the vibration or impact is gradually reduced and then extinguished, the ball 16, which is in rolling motion, That is, the power supply device 100 supported by the ball 16 is naturally guided and positioned at a position passing through the center axis of the housing, so that the power supply device 100 can take a stable vertical posture.

In addition, since the ball 16 holds the ball 16 at a predetermined position in the concave center of the ball receiving surface 20, there is an advantage that the ball 16 can cope more efficiently when an instantaneous impact due to an earthquake or the like is applied.

For example, if a momentary impact due to an earthquake which is found without warning is applied in a state where the ball 16 supporting the power supply facility 100 is not in the center and is directed to one side, the ball 16 A severe impact may be applied to the power supply facility 100 due to contact interference between the upper and lower housings without being moved.

However, according to the present invention, since the ball 16 holds the ball 16 at the center of the ball receiving surface 20, even if an instantaneous impact due to an earthquake or the like is applied, a range of flow in which the ball 16 can move is secured And as a result, the power facility 100 also flows closely through the ball motion, thereby effectively canceling the impact.

A stopper 21 is formed on the bottom surface of the lower housing 15 in the form of a circular wall which is erected at a predetermined height along the periphery of the ball receiving surface 20.

Accordingly, when the rolling movement of the ball 16 is excessive, the ball 16 is restricted by being caught by the stopper 21, so that even when the power supply facility 100 is shaken, It is possible to prevent an accident such as the driver 100 falling down to the side.

Here, the lower housing 15 is provided with a wall (not shown) for preventing the upper housing 13 from being exposed to the outside and the entire power supply facility 100 being completely disengaged 14 are provided.

The wall 14 is a circular wall structure which is formed along the upper surface edge of the lower housing 15 so as to surround almost all portions except the lower end portion of the upper housing 13, that is, the upper end flange 23a do.

Accordingly, the upper housing 15 can be made to flow only in a region formed in the wall 14 of the lower housing 15. [

In addition, the shock mount 10 includes a ball 16 that rolls in a 360-degree direction in four directions while damping vibrations and shocks.

The ball 16 is a means for supporting the whole of the power supply facility 100 together with the spring 18 and absorbs vibrations and shocks while rolling in response to vibrations or shocks transmitted to the power supply equipment 100, .

The ball 16 is positioned inside the ball receiving portion 12 formed in the upper housing 13 and contacts the spring side at the upper side and the ball 16 formed at the lower side of the lower housing 15 at the lower side, And is in contact with the seating surface 20.

The ball 16 can move in the vertical direction relative to the upper housing 13 in conjunction with the compression and expansion movement of the spring 18 while being positioned in the ball receiving portion 12, It is possible to perform the rolling motion in the direction of 360 ° along the surface 20.

3A, when vibration or impact is applied to the power supply facility 100 in the vertical direction, the entire upper housing 13 including the power supply facility 100 is moved downward (or upwardly moved) The ball 16 is moved upwards (or downwardly) while the spring 18 is relatively compressed (or expanded), and by the close flow of the spring 18 and the ball 16, 100 can be more effectively attenuated.

3B and 3C, when vibrations or shocks are applied to the power supply facility 100 from all directions, such as the vertical direction as well as the front, back, and left and right directions, the upper housing (not shown) including the power supply facility 100 13 move in accordance with the movement of the ball 16 rolling in the 360 ° direction along the ball receiving surface 20, so that the vibration or shock applied at this time can be canceled.

In particular, during rolling motion of the ball 16, the ball 16 is moved along the trajectory of the arc of the concave ball seating surface 20, which is in the shape of an arc, The spring 18 is also compressed and then restored. Thus, the vibration or shock applied to the power supply system 100 can be more effectively canceled.

In addition, the shock mount 10 includes a spring 18 as a means for damping vibrations and shocks while elastically moving in a vertical direction.

The spring 18 is in the form of a coil spring having a rectangular cross section and is disposed inside the spring receiving portion 11 formed in the upper housing 13 to support the load of the power supply equipment 100.

For this purpose, a flat plate 17 is disposed on the lower end of the spring 18 so as to come into contact with the ball 16 under the flat plate 17 at this time. In addition, And comes into contact with the spring finishing plate 19 fastened to the groove portion 24 formed at the central portion of the upper surface of the upper housing 13.

Accordingly, the power supply facility 100 can be supported while receiving the spring elastic force through the upper housing-side spring finishing plate 19 in contact with the upper end of the spring 18, and the compression and expansion action The vibration or shock transmitted to the power supply facility 100 can be attenuated.

4 and 5 are a front view and a side view showing an installed state of a seismic isolation device according to an embodiment of the present invention.

As shown in FIGS. 4 and 5, the shock mount 10 is installed at four corners of the bottom surface of the power supply facility 100, and the power supply facility 100 is balanced And the shock and vibration can be attenuated while being evenly divided and dispersed.

Therefore, when the shock and vibration are applied to the power supply apparatus 100, the spring 18 and the ball 16 of the four shock mounts 10, And can be safely protected by the up and down stretching movement and the four-way rolling movement.

The shock absorber 100 is provided with four shock mounts 100 according to the embodiment of the present invention. However, depending on the weight and size of the power supply assembly 100, Of course.

As described above, according to the present invention, the lower corner portions of the power supply system such as the UPS are supported by the shock mount of the spring and ball combination, so that the power supply equipment can be safely And can also effectively absorb and attenuate the own vibration of the power supply system.

10: Shock mount
11: spring receiving portion
12:
13: upper housing
14: Wall
15: Lower housing
16: Ball
17:
18: spring
19: Spring finishing plate
20: Ball bearing surface
21: Stopper
22a, 22b: flange
23: Balance plate mounting jaw
24:
25: ball restricting jaw
100: Power supply equipment
110: Structure

Claims (3)

delete delete And a plurality of shock mounts (10) installed on the bottom of the structure to support the power supply facility and to protect the power supply equipment from vibration or impact while supporting the bottom of the power supply facility,
The shock mount (10) has a spring receiving portion (11) and a lower ball receiving portion (12), which are arranged in parallel to each other along a central axial line and communicate with each other. A lower housing 13 fixed to the bottom of the structure and having a wall 14 disposed coaxially with the lower portion of the upper housing 13 and surrounding the lower end of the upper housing 13, And a ball which can move upward and downward along the ball receiving portion 12 and contact with the bottom surface of the lower housing 15 while being positioned in the ball receiving portion 12 of the upper housing 13, A spring 18 positioned within the spring receiving portion 11 of the upper housing 13 and capable of being compressed and expanded while being in contact with the side of the ball 16 with the flat plate 17 interposed therebetween; Is fixed to the upper portion of the spring receiving portion (11) of the upper housing (13) As being configured as a spring closing plate 19 which covers the upper end of the spring 18,
The center of the bottom surface of the lower housing 15 in contact with the ball 16 is composed of a concave ball seating surface 20 in the form of an arc so that the ball 16 can be positioned on the housing axis,
The bottom surface of the lower housing 15 is provided with a stopper 21 in the form of a wall standing up along the periphery of the ball seating surface 20 so as to regulate the rolling range of the ball 16 Of the power plant.

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