KR20220052122A - Seismic isolating device - Google Patents

Seismic isolating device Download PDF

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Publication number
KR20220052122A
KR20220052122A KR1020200136101A KR20200136101A KR20220052122A KR 20220052122 A KR20220052122 A KR 20220052122A KR 1020200136101 A KR1020200136101 A KR 1020200136101A KR 20200136101 A KR20200136101 A KR 20200136101A KR 20220052122 A KR20220052122 A KR 20220052122A
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South Korea
Prior art keywords
cylinder
housing
switchboard
distribution board
piston
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KR1020200136101A
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Korean (ko)
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김준수
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주식회사 진흥기술
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Priority to KR1020200136101A priority Critical patent/KR20220052122A/en
Publication of KR20220052122A publication Critical patent/KR20220052122A/en

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/54—Anti-seismic devices or installations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/53—Means for adjusting damping characteristics by varying fluid viscosity, e.g. electromagnetically
    • F16F9/535—Magnetorheological [MR] fluid dampers
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/26—Casings; Parts thereof or accessories therefor
    • H02B1/50—Pedestal- or pad-mounted casings; Parts thereof or accessories therefor

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Electromagnetism (AREA)
  • Vibration Prevention Devices (AREA)

Abstract

The present invention provides a seismic isolation device for a distribution board which can safely support a distribution board by effectively and immediately attenuating both longitudinal vibration and lateral vibration. The seismic isolation device for a distribution board having a smart seismic isolation device installed on the lower surface of a housing of the distribution board comprises: an elastic unit installed on the bottom surface of the housing; a cylinder positioned in the middle of the lower surface of the housing, and provided with a chamber formed therein to be filled with MR fluid; a bracket installed on one side of the cylinder, and supporting the cylinder while separating the cylinder from the ground by a prescribed distance; a piston installed on the chamber in the cylinder to be moved to the left and right; a rod vertically bent while one end thereof is coupled to the piston, and the other end thereof is exposed out of the cylinder; and an MR damper installed on the other end of the rod, and having a support part attached to the lower surface of the housing of the distribution board.

Description

수배전반 면진장치{Seismic isolating device}Seismic isolating device for switchgear

본 발명은 수배전반 면진장치에 관련되는 것으로서, 더욱 상세하게는 탄성부와 MR댐퍼로 구성하여 지진에 의해 발생한 종방향 진동 및 횡방향 진동을 보다 효과적이고 또한 즉각적으로 감쇠시켜 배전반을 안전하고 신뢰성있게 받쳐줄 수 있도록 한 수배전반 면진장치에 관한 것이다.The present invention relates to a switchgear seismic isolator, and more particularly, it is composed of an elastic part and an MR damper to more effectively and immediately attenuate the longitudinal and lateral vibrations caused by an earthquake to safely and reliably support the switchboard. It relates to the switchgear seismic isolator that made it possible.

일반적으로 학교나 빌딩, 아파트단지, 공장 등과 같은 집단 전력수요처에서는 각각이 필요로 하는 전력을 얻기 위해 변전소로부터 공급되는 6600V 이상 22900V급 특고압을 수전하여 380V 또는 220V의 저전압의 상용전압으로 변전하는 수변전설비를 갖추게 되며, 중전기나 스위치장치 및 기타 안전장치 등의 전기설비가 함체 내부에 설치되어 전력공급을 제어하는 배전반을 구축하게 되는데, 주로 중량감을 갖는 중전기기들이 많이 배치된다.In general, in order to obtain the power required by each group in schools, buildings, apartment complexes, factories, etc., it receives the special high voltage of 6600V or higher 22900V supplied from the substation and converts it into a commercial voltage with a low voltage of 380V or 220V. A substation facility is provided, and electrical facilities such as heavy electricity, switch devices, and other safety devices are installed inside the enclosure to construct a switchboard that controls the power supply.

특히, 특고압을 변성하기 위한 중전기나 주선로와 예비선로의 자동부하전환에 사용되는 자동부하절체개폐기(ALTS), 고전압/대전류를 저전압/소전류로 변성시키는 계기용 변압변류기(MOF), 진공차단기(VCB) 등은 대표적인 중전기기들이라 할 수 있다.In particular, an automatic load transfer switch (ALTS) used for automatic load switching between heavy electricity or main and spare lines to transform extra-high voltage, instrument transformer (MOF) for converting high voltage/large current into low voltage/small current, vacuum Circuit breaker (VCB) and the like can be said to be representative heavy electric equipment.

한편, 이러한 구성들로 이루어진 배전반은 지면에 고정 설치되기 때문에 지진 발생 시 지진파의 진동에 의하여 배전반에 구비된 함체에 변형이 발생되거나, 배전반 내부에 설치된 각종 전기기기가 파손될 수 있고, 심할 경우 배전반이 넘어질 수 있다는 문제점이 있으며, 이는 결과적으로 전력이 필요한 곳에 안정적으로 전력을 공급할 수 없게 되고, 누전 등으로 인해 감전사고 등을 유발할 수 있는 문제점이 있다.On the other hand, since the switchboard composed of these components is fixedly installed on the ground, when an earthquake occurs, the housing provided in the switchboard may be deformed due to the vibration of the seismic wave, or various electric devices installed inside the switchboard may be damaged. There is a problem that it may fall, and as a result, it is impossible to stably supply power to a place requiring power, and there is a problem that may cause an electric shock accident due to a short circuit.

상기와 같은 문제점을 해결하기 위한 선행기술로는 대한민국 특허청 등록특허공보 등록번호 제 10-1469164 호(이하 선행기술이라 함)를 예로 들 수 있다.As a prior art for solving the above problems, the Republic of Korea Intellectual Property Office Registered Patent Publication No. 10-1469164 (hereinafter referred to as prior art) may be cited as an example.

상기 선행기술은 배전반 본체의 하단에 설치된 면진 베이스와 지면 사이에 다수개의 면진 모듈이 설치되고, 면진 베이스와 도어 사이에 영구자석을 이용한 도어 록킹장치가 설치된 구조로 되어 있고, 상기 도어 록킹장치는 면진 베이스에 설치되어 상기 면진 모듈에서 전달되는 진동에 의해 상하 승강작동하면서 구동력을 발생시키는 구동부와, 배전반의 도어에 설치되어 상기 구동부의 상하 승강 동작에 따라 회전작동하는 가동부 및, 상기 가동부의 회전 동작에 의해 작동하면서 도어를 배전반 본체에고정시키는 록킹부를 포함하여 이루어지며, 상기 구동부는 면진 모듈과 연결되는 와이어와, 상기 와이어의 선단에 소켓 조인트를 통하여 연결되는 구동바, 상기 구동바의 선단에 설치되면서 오목홈을 갖추고 있는 후크, 상기 구동바를 수직으로 끼워 지지하는 지지판, 상기 지지판과 후크 사이에 설치되어 구동바를 탄력적으로 지지하는 지지스프링으로 이루어지고, 상기 가동부는 구동부의 후크에 형성된 오목홈에 끼워지는 돌출핀을 갖춘 가동축과, 상기 가동축을 록킹부에 연결하는 다수개의 연결 어댑터, 상기 다수개의 연결 어댑터를 연결하여 동시에 회전할 수 있게 하는 연결축, 상기 가동축을 회전할 수 있게 지지하는 회전 링크를 포함하여 이루어지고, 상기 록킹부는 가동부의 연결 어댑터를 통하여 전달되는 회전력에 의해 회전 작동하면서 중간에 비자성체가 가로질러 설치된 자성 회전자와, 상기 회전자가 회전할 수 있게 끼워지는 설치홈을 갖추고 중간에 비자성체가 가로질러 삽입 설치되며 영구 자석의 극성이 각각 전달되는 상하 자극 돌기을 갖춘 다수개의 마그네틱 몸체 및, 면진 베이의 도어쪽 선단에 설치되어 상기 마그네틱 몸체의 자극 돌기가 접촉하여 자력에 의해 록킹 또는 록킹해제 되게 하는 다수개의 록킹판을 포함하여 이루어진 것을 기술적 요지로 한다.The prior art has a structure in which a plurality of seismic isolating modules are installed between the seismic isolation base installed at the bottom of the switchboard body and the ground, and a door locking device using a permanent magnet is installed between the seismic isolating base and the door, and the door locking device is seismic isolating A driving unit installed on the base to generate a driving force while moving up and down by vibration transmitted from the seismic isolation module; and a locking part for fixing the door to the switchboard body while operating by means of a locking part, wherein the driving part includes a wire connected to the seismic isolation module, a driving bar connected to the tip of the wire through a socket joint, and installed at the tip of the driving bar. It consists of a hook having a concave groove, a support plate for vertically fitting and supporting the driving bar, and a support spring installed between the support plate and the hook to elastically support the driving bar, and the movable part is fitted into the concave groove formed in the hook of the driving unit. A movable shaft having a protruding pin, a plurality of connection adapters for connecting the movable shaft to the locking unit, a connection shaft for connecting the plurality of connection adapters to enable simultaneous rotation, and a rotation link for rotatably supporting the movable shaft The locking part is rotated by the rotational force transmitted through the connecting adapter of the movable part while having a magnetic rotor installed across the non-magnetic material in the middle, and an installation groove in which the rotor is rotatably fitted, and in the middle A plurality of magnetic bodies with upper and lower magnetic pole protrusions that are inserted and installed across the non-magnetic material and the polarity of permanent magnets are transmitted respectively, and installed at the front end of the door side of the seismic isolation bay, the magnetic pole protrusions of the magnetic body contact and lock or lock by magnetic force The technical gist is that it includes a plurality of locking plates to be released.

그러나 위 선행기술은 면진장치의 구조가 너무 복잡하여 설치비용이 많이 드는 단점과 함께 진동발생시 즉각적으로 반응하지 못해 신뢰성이 떨어지는 단점이 있다.However, the above prior art has disadvantages in that the structure of the seismic isolator is too complicated and thus installation cost is high, and the reliability is lowered because it cannot react immediately when vibration occurs.

대한민국 특허청 등록특허공보 등록번호 제 10-1469164 호Korean Intellectual Property Office Registered Patent Publication No. 10-1469164

따라서, 상기한 바와 같은 문제점을 해결하기 위한 본 발명의 목적은 탄성부의 상단에 MR유체가 충진된 댐퍼를 더 설치하여 지진에 의한 발생한 종방향 진동 및 횡방향 진동 모두를 보다 효과적이고 또한 즉각적으로 감쇄시켜 배전반을 안전하게 받쳐줄 수 있도록 한 수배전반 면진장치를 제공함에 있다.Accordingly, an object of the present invention to solve the above problems is to more effectively and immediately attenuate both longitudinal and lateral vibrations caused by earthquakes by further installing a damper filled with MR fluid at the upper end of the elastic part. The purpose of this is to provide a seismic isolator for the switchgear so that it can safely support the switchboard.

상술한 목적을 달성하기 위한 본 발명은 수배전반의 함체 하면에 설치되어 진동을 감쇄하는 스마트 면진장치를 갖는 수배전반에 있어서, 상기 함체 바닥면에 설치되는 탄성부와, 상기 함체의 하면 중앙에 위치하며, 내부에는 MR유체가 충진될 수 있도록 챔버가 형성된 실린더, 상기 실린더의 일측에 설치되며, 상기 실린더를 지면에서 일정거리 이격시킨 상태로 지지하는 브라켓, 상기 실린더의 내부 챔버에 좌, 우 이동 가능하게 설치되는 피스톤, 상기 피스톤에 일단이 결합되고, 타단은 상기 실린더의 외부로 노출된 상태에서 수직으로 절곡시킨 로드, 상기 로드의 타단에 설치되며, 상기 수배전반의 함체 저면에 부착되는 받침편을 구성한 MR댐퍼를 포함하여 구성한 것을 요지로 한다.The present invention for achieving the above object is a switchboard having a smart seismic isolator installed on the lower surface of the housing of the switchgear to attenuate vibration, an elastic part installed on the bottom of the housing, and located in the center of the lower surface of the housing, A cylinder having a chamber formed therein so that the MR fluid can be filled, a bracket installed on one side of the cylinder and supporting the cylinder while being spaced apart from the ground by a certain distance, and installed movably left and right in the inner chamber of the cylinder MR damper comprising a piston, one end coupled to the piston, and the other end being vertically bent while exposed to the outside of the cylinder, installed at the other end of the rod, and forming a support piece attached to the bottom surface of the housing of the switchboard It is a gist of what is constituted including

본 발명은 종방향 진동을 감쇠하는 탄성부와, 횡방향 진동을 감쇠하는 MR댐퍼로 구성하여 지진에 의한 발생한 종방향 진동 및 횡방향 진동 모두를 보다 효과적이고 또한 즉각적으로 감쇠시켜 배전반을 안전하고 신뢰성있게 받쳐줄 수 있는 작용 효과를 가진다.The present invention is composed of an elastic part for damping longitudinal vibrations and an MR damper for damping lateral vibrations, so that both longitudinal and lateral vibrations caused by earthquakes are more effectively and immediately attenuated to make the switchboard safe and reliable. It has an action effect that can support it.

도 1은 본 발명에 따른 수배전반 면진장치의 구성을 도시한 도면.
도 2는 도 1에서 도시하고 있는 수배전반 면진장치의 구조를 도시한 도면.1 is a diagram showing the configuration of a switchgear seismic isolator according to the present invention.
FIG. 2 is a view showing the structure of the switchgear seismic isolator shown in FIG. 1. FIG.

첨부된 도 1은 본 발명의 바람직한 실시 예에 따른 수배전반 면진장치의 구성을 입체적으로 도시한 도면이고, 도 2는 도 1의 단면을 도시한 도면이다.1 is a three-dimensional view showing the configuration of a switchgear seismic isolator according to a preferred embodiment of the present invention, and FIG. 2 is a cross-sectional view of FIG. 1 .

도 1과 도 2에서 도시하고 있는 바와 같이, 수배전반은 중전기를 수용하며 전면에는 도어가 설치된 함체(10)로 외형을 구성한다.As shown in Figs. 1 and 2, the switchgear accommodates the heavy electricity and constitutes an external shape of the housing 10 in which a door is installed on the front side.

상기 함체(10)를 지탱하는 바닥면(20)에는 본 발명에서 제안하는 면진 장치가 설치된다.The seismic isolator proposed in the present invention is installed on the bottom surface 20 supporting the housing 10 .

첨부된 도 2는 상기한 면진 장치의 구조를 발췌하여 도시한 도면이다.2 is a diagram showing the structure of the above-described seismic isolator.

도 2에서 도시하고 있는 바와 같이, 면진장치는 크게 종방향 진동을 감쇠하는 탄성부(40) 및 MR댐퍼(50)로 나뉘어져 구성한다.As shown in Fig. 2, the seismic isolator is divided into an elastic part 40 and MR damper 50 that largely attenuate longitudinal vibrations.

상기 탄성부(40)는 탄성 고무로 이루어진다. 상기 탄성 고무로 이루어진 탄성부는 전단변형을 하여 지진 등에 의한 종방향 진동을 절연하고, 종료 후 탄성 고무가 갖고 있는 탄성 회복력으로 원래 위치로 복원하는 기능을 가진다. The elastic part 40 is made of elastic rubber. The elastic part made of the elastic rubber is subjected to shear deformation to insulate longitudinal vibrations caused by earthquakes, etc., and has a function of restoring to the original position by the elastic recovery force of the elastic rubber after completion.

그러나 이 탄성부(40)만으로는 종방향으로 전해지는 진동은 감쇠에 취약할 수 있는 바, 이를 보완하기 위한 수단으로 본 발명은 MR유체를 이용한 MR댐퍼(50)를 채택하였다.However, the vibration transmitted in the longitudinal direction with only the elastic part 40 may be vulnerable to damping. As a means to compensate for this, the present invention adopts the MR damper 50 using MR fluid.

MR유체(Magnetorheological fluid)는 자기장 또는 전기장에 의해 경화되거나 형상이 변형되는 물질을 말하는 것으로, 근처에 자기장이나 전기장이 발생하면 그 구성성분이 한 방향으로 늘어서게 되고, 이에 따라 상기 MR유체를 포함하는 물질을 경화시켜 단단한 격자를 형성하는 것이다. 따라서 MR유체는 자기장의 변화에 따라 분자구조의 배열이 바뀌어 유체에서 고체화되면서 진동에 대한 감쇠능력이 증가하는 특성이 있으며, 특히 입력전압이 클수록 MR유체의 제어력이 증가함을 알 수 있다.MR fluid (Magnetorheological fluid) refers to a material that is hardened or whose shape is deformed by a magnetic or electric field, and when a magnetic or electric field is generated nearby, its components are arranged in one direction, It hardens the material to form a rigid lattice. Therefore, it can be seen that MR fluid has the characteristic of increasing the damping ability for vibration as the molecular structure changes and solidifies in the fluid according to the change of the magnetic field.

상기 MR댐퍼(50)는 수배전반을 구성하는 함체(10) 하면 중앙부에 설치되어 지진으로 인해 발생한 진동중에서 횡방향으로 전해지는 진동을 감쇠시키게 된다. The MR damper 50 is installed in the central portion of the lower surface of the housing 10 constituting the switchgear to attenuate the vibration transmitted in the lateral direction among the vibrations caused by the earthquake.

상기 MR댐퍼(50)는 내부에 MR유체(56)가 충진될 수 있도록 챔버(54)가 형성되는 실린더(52), 상기 실린더(52)의 일측에 설치되며 상기 실린더(52)를 지면에서 일정거리 이격시킨 상태로 지지하는 브라켓(58), 상기 실린더(52)의 내부 챔버(54)에 좌, 우 이동 가능하게 설치되는 피스톤(60), 상기 피스톤(60)에 일단이 결합되고 타단은 상기 실린더(52) 외부로 노출된 상태에서 수직으로 절곡시킨 로드(62), 상기 로드(62)의 타단에 설치되며 수배전반의 함체(10) 저면에 부착되는 받침편(64)을 포함하여 구성한다.The MR damper 50 is installed on one side of the cylinder 52 and the cylinder 52 in which the chamber 54 is formed so that the MR fluid 56 can be filled therein, and the cylinder 52 is fixed from the ground. A bracket 58 for supporting in a state spaced apart from each other, a piston 60 installed movably left and right in the inner chamber 54 of the cylinder 52, one end is coupled to the piston 60 and the other end is the The cylinder 52 includes a rod 62 bent vertically in a state exposed to the outside, a support piece 64 installed at the other end of the rod 62 and attached to the bottom surface of the housing 10 of the switchboard.

상기 MR댐퍼(50)는 지진이 발생하여 진동을 감지하면 제어부는 MR댐퍼 주변에 설치되어 있는 자기코일로 전류를 인가하여 자기장을 형성시키게 되며, 이에 따라 실린더(52)의 챔버(54)에 충진되어 있는 MR유체(56)는 감쇠력이 증대되어 함체로 전해지는 횡방향 진동을 감쇠시키게 된다.When the MR damper 50 senses vibration due to an earthquake, the control unit applies a current to a magnetic coil installed around the MR damper to form a magnetic field, and thus the chamber 54 of the cylinder 52 is filled. The MR fluid 56 has an increased damping force to attenuate lateral vibration transmitted to the housing.

10: 함체 20: 바닥면
30: 면진 받침장치 40: 탄성부
50: MR댐퍼 10: housing 20: bottom surface
30: seismic isolation support device 40: elastic part
50: MR damper

Claims (1)

수배전반의 함체(10) 하면에 설치되어 진동을 감쇄하는 스마트 면진장치를 갖는 수배전반에 있어서,
상기 함체(10) 바닥면에 설치되는 탄성부(40)와;
상기 함체(10)의 하면 중앙에 위치하며, 내부에는 MR유체(56)가 충진될 수 있도록 챔버(54)가 형성된 실린더(52);
상기 실린더(52)의 일측에 설치되며, 상기 실린더(52)를 지면에서 일정거리 이격시킨 상태로 지지하는 브라켓(58);
상기 실린더(52)의 내부 챔버(54)에 좌, 우 이동 가능하게 설치되는 피스톤(60);
상기 피스톤(60)에 일단이 결합되고, 타단은 상기 실린더(52)의 외부로 노출된 상태에서 수직으로 절곡시킨 로드(62);
상기 로드(62)의 타단에 설치되며, 상기 수배전반의 함체(10) 저면에 부착되는 받침편(64)을 구성한 MR댐퍼(50)를 포함하여 구성하는 것을 특징으로 하는 스마트 면진장치를 갖는 수배전반.In the switchboard having a smart seismic isolator installed on the lower surface of the housing 10 of the switchboard to damp vibration,
an elastic part 40 installed on the bottom surface of the housing 10;
a cylinder 52 located in the center of the lower surface of the housing 10 and having a chamber 54 formed therein so that the MR fluid 56 can be filled;
a bracket (58) installed on one side of the cylinder (52) and supporting the cylinder (52) while being spaced apart from the ground by a predetermined distance;
a piston (60) installed to be movable left and right in the inner chamber (54) of the cylinder (52);
a rod 62 having one end coupled to the piston 60 and the other end vertically bent in a state exposed to the outside of the cylinder 52;
A switchboard having a smart seismic isolator, which is installed at the other end of the rod (62) and comprises an MR damper (50) comprising a support piece (64) attached to the bottom surface of the housing (10) of the switchboard.
KR1020200136101A 2020-10-20 2020-10-20 Seismic isolating device KR20220052122A (en)

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101469164B1 (en) 2014-08-08 2014-12-05 (주)서전기전 A switching board having earthquake reducing module and door locking device using permanent magnet

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101469164B1 (en) 2014-08-08 2014-12-05 (주)서전기전 A switching board having earthquake reducing module and door locking device using permanent magnet

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