KR102638008B1 - Earthquake-Resistant Swichboard - Google Patents

Abstract

The present invention is a technology related to switchboards (distribution boards, receiving boards, distribution boards, high-voltage boards, low-voltage boards, motor control boards). In particular, by preparing means and methods to prepare for disasters such as natural disasters such as earthquakes, the switchgear is safely protected and there is no disruption in power supply. Meanwhile, we also provide disaster response activities utilizing information technology (IT) such as artificial intelligence (AI), smart technology (Smart), Internet of Things (IOT), remote control technology, and smartphone app technology. Makes it easy to manage general functions.

Description

Earthquake-Resistant Swichboard

The present invention relates to a switchboard {distribution board, receiving board, distribution board, high-voltage board, low-voltage board, (motor) control board}. More specifically, by preparing means and methods to prepare for disasters such as earthquakes (natural disasters, accidents, etc.), the switchgear is safely protected and there is no disruption in power supply. Meanwhile, as time goes by, response activities to disasters such as earthquakes/vibrations and other general functions using artificial intelligence (AI), smart technology, Internet of Things (IOT), remote control technology, smartphone app technology, etc. Management, etc. is controlled and performed through information technology (IT). See Figure 1.

As a prior art related to the present invention, in FIG. 2, registered patent number 1757701 relates to a switchboard consisting of a case forming the outer shape and an electric device configured inside the case, and equipped with an earthquake-proof device installed in the case to reduce vibration when an earthquake occurs. Ho (2017.07.07.) is an example, so let's look at it in more detail. A circular connecting hole formed through the central portion of the lower surface of the case; A spherical gravity body installed in the connection hole, with a plurality of coupling grooves formed on the outer periphery, and a coupling bar formed inside the coupling groove; A plurality of buffer springs are provided with a hook at one end and are detachably coupled to the coupling bar, and the other end is detachably coupled to the inner surface of the case; An auxiliary gravity body coupled to the buffer spring at a position between the gravity body and the buffer spring; It is coupled to the lower side of the case to support the case, and a hemispherical seating groove is formed in the center of the upper surface to seat the lower part of the gravity body. The width of the cross section of the seating groove is formed to be larger than the width of the lower part of the gravity body, and the seating groove A plurality of ball bearings are installed to contact the lower part of the gravity body, and it is composed of a pedestal equipped with a plurality of moving wheels foldable on the bottom and a plurality of support members protruding downward from the bottom. Meanwhile, at www.kipris.or.kr, use the search formula IPC=[H02B]*TL=[(distribution board+distribution board+distribution board+high voltage board+low voltage board+control board)*(earthquake+seismic+vibration)] Other examples can be found, and this prior art can be cited as the basic structure necessary to achieve the present invention.

Additionally, Patent No. 2197153 (December 24, 2020) regarding a transformer system equipped with an earthquake-resistant device is illustrated in Figure 3 (a). In detail, a first support member mounted on the ground and rotating about a first axis; a second support portion connected to the first support portion and rotating about a second axis; a third support connected to the second support and rotating about a third axis; It includes a fourth support part connected to the third support part and supporting the power equipment. The first support unit 110 includes a first support unit 111 mounted perpendicularly to the ground; And a first bearing (AY) mounted on the end of the first support and rotating about the first axis. The second support 120 includes a second support connected to the first bearing; and a second bearing (AZ) mounted on the end of the second support and rotating about the second axis. The third support 130 includes a third support connected to the second bearing and arranged in parallel on the ground; and two third bearings (AX1, AX2) respectively mounted on both ends of the third support and rotating about the third axis. And a fourth support portion 140 consisting of two fourth supports 141 and 142 connected to each of the third bearings is provided. The second support includes a 2-1 connecting rod (121) connected to the first bearing (AY) and extending perpendicular to the ground; A 2-2 connecting rod (122) connected to the 2-1 connecting rod and parallel to the ground; A 2-3 connecting rod (123) connected to the 2-2 connecting rod and vertically connected to the ground; And a 2-4 connecting rod 124 connected to the 2-3 connecting rod, connected in parallel to the ground, and having a second bearing AZ installed at the end. The third support includes a 3-1 connecting rod 131 connected to the second bearing AZ and extending parallel to the ground; A 3-2 connecting rod (132) whose central portion is connected perpendicularly to the 3-1 connecting rod and extends parallel to the ground; A 3-3 connecting rod (133) connected to one end of the 3-2 connecting rod and extending parallel to the ground; A 3-4 connecting rod (134) connected perpendicularly to the 3-3 connecting rod, extending parallel to the ground, and having a third bearing (AX1) installed at the end; A 3-5 connecting rod (135) connected to the other end of the 3-2 connecting rod and extending parallel to the ground; and a 3-6 connecting rod 136, which is vertically connected to the 3-5 connecting rod, extends parallel to the ground, and has a third bearing AX2 installed at the end. The second support portion 120 is connected to a position away from the center of the third support portion 130, and between the first support portion, the second support portion, the third support portion, and the fourth support portion, an absorption formed of rubber, synthetic resin material, or sponge is provided. Earthquake-resistant devices for power plants equipped with ash; Power equipment (300) mounted on a seismic device for power equipment; and a cover 400 that covers the earthquake-resistant device for power equipment and the power equipment.

Registered Patent No. 1757701 (2017.07.07.) Registered Patent No. 1757703 (2017.07.07.) Registered Patent No. 1757704 (2017.07.07.) Registered Patent No. 2158422 (2020.09.15.) Registered Patent No. 2181079 (2020.11.15.) Registered Patent No. 2197153 (2020.12.24.)

The present invention provides means and methods to prepare for disasters such as earthquakes (natural disasters, accidents, etc.) when installing a switchboard (distribution board, switchboard, distribution board, high-voltage panel, low-voltage panel, (motor) control panel). Safely protect the switchgear and ensure that there is no disruption in power supply. In particular, we aim to establish more efficient earthquake disaster prevention facilities by dividing seismic waves by wave type and specializing in combating S-wave vibrations caused by S-waves and P-wave vibrations caused by P-waves.

It includes an S-wave vibration absorption unit 100, a P-wave vibration absorption unit 200, a tilt vibration absorption unit 300, and a main body unit 10,

The S-wave vibration absorption unit 100,

It consists of an outer box part 110 and an inner box part 120 that is smaller than the outer box part 110,

The enclosure unit 110 is,

It includes a flat enclosure bottom wall 111 and an enclosure vertical wall 112 around the enclosure bottom wall 111, and takes the shape of a drum with an open upper part of the enclosure, and the enclosure bottom wall 111 is fixed to the ground so that the enclosure part 110 is horizontal. are placed,

The inner compartment (120) is,

It includes a flat inner bottom wall 121 and an inner vertical wall 122 around the inner bottom wall 121, and takes the shape of a drum with an open inner box upper part, and the inner ship part 120 is stacked and spaced apart inside the outer ship part 110. , a ball bearing is inserted between the inner bottom wall 121 and the outer bottom wall 111 to allow horizontal movement, and a horizontal axis spring is inserted between the inner vertical wall 122 and the outer vertical wall 112 to allow horizontal movement. Elastically absorbs S-wave vibration,

A donut-shaped inertia holding part (g10) with a groove formed in the center is seated in the inner box part (120),

The P wave vibration absorption unit 200,

It includes a piston shaft 210 whose lower end is fixed to the center of the inner bottom wall 121, and a cylinder shaft 220 whose lower end is open,

The cylinder shaft 220 is inserted into the piston shaft 210 to enable vertical movement, and the top of the piston shaft 210 and the top of the cylinder shaft 220 are spaced apart, and a vertical shaft spring is interposed between them to prevent P-wave vibration. Elastic absorption,

The tilt vibration absorption unit 300 is,

It includes a L-shaped first axis connected vertically from the side wall of the cylinder shaft 220, a second axis disposed horizontally on the top of the first axis, and one end of which is pivot-coupled so that the axis can rotate, and the other end of the second axis in a different direction. An earthquake-resistant switchgear, characterized in that the main body portion (10) is pivot-coupled so that it can rotate on an axis.

According to the present invention, in providing a switchgear, professional response according to each waveform of seismic waves is provided to prepare means and methods to effectively prepare for disasters such as earthquakes, so that the switchboard can be safely protected and there is no disruption in power supply. .

In addition, a sensor that detects vibration caused by seismic waves is used to warn managers, and information technology (IT) such as artificial intelligence (AI), smart technology (Smart), Internet of Things (IOT), remote control technology, and smartphone apps is used. ) Technology can be used to provide a basis for disaster preparedness, response activities, and other general functions.

Figures 1 to 3 related to background technology,
Figure 1 is an example.
Figure 2 shows another embodiment.
In Figure 3, Figure 3 (a) and Figure 3 (b) are each another embodiment.
Showing an embodiment of the present invention,
Figure 4 is an exemplary perspective view of one embodiment from the side.
Figure 5 is an exemplary view showing another embodiment viewed from the side.
Figure 6 is an enlarged perspective view of a certain part.
Figure 7 is a state diagram showing the operation of different parts.

Prior to the detailed description of the present invention, looking at the cited background technology in more detail, Figure 3 (b) shows an example of Registered Patent No. 2158422, which relates to a switchgear (1) equipped with a seismic device (3) on the bottom to absorb earthquake vibrations. It is done. In more detail, the earthquake-proof device 3 includes a body portion 11 having a receiving space 11A of a predetermined size formed therein and a partition plate 11B dividing the receiving space 11A upward and downward, and a body portion ( A lower body 10 including a plurality of fixing parts 12 provided on the lower outer surface of 11); An upper body 20 installed on the upper part of the lower body 10 and provided with a guide part 22 inserted to a predetermined depth into the upper part of the receiving space 11A with respect to the partition plate 11B; An elastic spring 30 of a predetermined diameter located between the upper surface of the partition plate 11B and the lower surface of the upper body 20 and elastically supporting the upper body 20; A leaf spring assembly 40 installed on the upper side of the receiving space 11A based on the partition plate 11B to radially elastically support the outer surface of the guide portion 22; A disk-shaped fixing plate 51 installed at the lower part of the receiving space 11A based on the partition plate 11B, a connection bolt 52 installed to penetrate the guide part 22 and the fixing plate 51, and a connection bolt It includes a fastening member 50 made of a connection nut 53 assembled to (52). A through hole 11B' having a relatively larger diameter than the diameter of the connecting bolt 52 is formed in the partition plate 11B to ensure a free space for the connecting bolt 52 to move in the horizontal direction.

The leaf spring assembly 40 includes a cylindrical spring housing 41 having a predetermined diameter to be inserted into the elastic spring 30; A plurality of first leaf springs ( 42); It is installed on the inside of the spring housing 41 and is formed in an arc shape so that the central part is in contact with the inner surface of the spring housing 41, and a plurality of two ends are intersecting and fixed to the first leaf spring 42 at a predetermined width. It includes a second leaf spring (43). At both ends of the first and second leaf springs 42 and 43, fitting parts 42A and 43A are formed, which are partially cut to have a predetermined width and height and are fitted with each other. It's about.

Hereinafter, the present invention is disclosed together with the accompanying examples in FIG. 4 and below. The present invention discloses a switchgear having the function of an earthquake-proof device, including an S-wave vibration absorption unit 100, a P-wave vibration absorption unit 200, a tilt vibration absorption unit 300, and a main body unit 10. In the present invention, the switchboard refers to an electrical facility including a switchboard, a switchboard, a high-voltage panel, a low-voltage panel, a (motor) control panel, and a distribution board. The present invention is provided (separately) with an S-wave vibration absorption unit 100, a P-wave vibration absorption unit 200, and a tilt vibration absorption unit 300, so that the unique waveform of each earthquake (including vibration) is By expertly absorbing and controlling the characteristics, a more delicate and professional response/opposition is possible.

The S-wave vibration absorbing unit 100 responds to, opposes and absorbs transverse waves that vibrate horizontally (or vibrate sideways in the direction of travel), that is, S-wave vibrations (vibrations of S waves) among seismic waves, and absorb them to protect internal facilities, i.e. It is provided to protect the switchgear main body 10, etc., and includes an outer box 110 and an inner box 120. The enclosure portion 110 is disposed in contact with the ground. The inner periphery of the inner box part 120 is formed to be smaller than the inner periphery of the outer box part 110 so that the entire body can be seated on the outer box part 110.

In more detail, the enclosure portion 110 includes an enclosure bottom wall 111 made of a flat lower surface of the enclosure portion 110, and an enclosure vertical wall 112 in the form of a vertical wall that protrudes vertically upward from the perimeter of the enclosure bottom wall 111. ) and an upper part of the enclosure that is open (open) on top of the enclosure part 110, so that the inside of the enclosure part 110 is empty and takes the form of a standing drum having a receiving space. The enclosure bottom wall 111 is fixed in contact with the ground and installed so that the entire enclosure part 110 is arranged horizontally.

The inner ship part 120 includes an inner ship bottom wall 121 made of a flat surface below the inner ship part 120, and an inner ship wall 122 in the form of a vertical wall that protrudes vertically upward from the periphery of the inner ship wall 121, It includes an inner box upper part opened on top of the inner box part 120, and the inside of the inner box part 120 is empty and takes the form of a standing drum having a receiving space. The inner box part 120 is installed overlapping the outer box part 110, and the outer periphery of the inner box part 120 is spaced apart from the inner periphery of the outer box part 110.

Inside the inner box 120, a member that acts as a weight, such as metal, concrete, or stone, is provided, and a groove is formed in the center in a donut shape, so that the groove is connected to the piston shaft 210 below (bottom of the piston shaft 210). The inertial maintenance part (g10) that is inserted and installed can be seated/built in. By strengthening and providing the moment of inertia that responds to (opposes) the horizontal vibration of the S-wave vibration through the additional configuration of the inertia maintenance unit (g10), the inertial force of the inertia maintenance unit (g10) in place is used to maintain the inner ship portion (120). By minimizing (reducing) horizontal movement, the impact of S-wave vibration on the main body (10)/inner box (120) of the switchboard, which is an internal facility, can be further reduced. The inertia maintenance part (g10) is provided in multiple pieces and can be stacked in multiple stages (g11, g12). Through this, it is possible to adopt different degrees of response to horizontal vibration by adjusting the moment of inertia according to the frequency of earthquake occurrence, regional characteristics according to earthquake intensity, or the importance of vibration resistance of the facility to be protected.

A ball bearing is interposed between the inner ship bottom wall 121 and the outer ship wall 111 (gap). The ball bearing serves to guide the outer lower part and the inner box part 120 to slide each other's horizontal movement (moving horizontally to move the position) while allowing the outer box part 110 to support the load of the inner box part 120. If ball bearings are not used, sliding can be induced by applying a lubricant (grease member, etc.) between both sides of the inner bottom wall 121 and the outer bottom wall 111.

And between the inner vertical wall 122 and the outer vertical wall 112, a horizontal axis spring s1 (S-wave vibration absorption spring) of a spring member whose length increases and decreases along the horizontal axis and operates to elastically restore is interposed to absorb horizontal vibration. By elastically absorbing (f1) the S-wave vibration (vibration in the horizontal direction), the impact received by the inner box 120 and the main body 10 installed on the inner box 120 from the S-wave vibration is minimized and its influence is minimized. reduction, and allow the inner box part 120/main body part 10 to elastically return to its original position.

The P-wave vibration absorbing unit 200 responds to, opposes and absorbs longitudinal waves that vibrate up and down/vertically (or vibrate in the traveling direction), that is, P-wave vibrations (vibration of P waves) among seismic waves, and absorbs them into the distribution panel, which is an internal facility. It is provided to protect the main body 10, etc., and includes a piston shaft 210 and a cylinder shaft 220. The piston shaft 210 takes a rod shape (rod/rod shape) and its lower end is fixed to the center of the inner bottom wall 121. The cylinder shaft 220 takes the shape of a cylinder that is empty inside, closed at the top and sides, and open only at the bottom, and its inner periphery corresponds to the outer periphery of the piston shaft 210.

The cylinder shaft 220 is inserted into the piston shaft 210 (at the top of the piston shaft 210) to enable vertical movement (vertical movement/position movement) of the cylinder shaft 220. At this time, a gap is secured between the upper end of the piston shaft 210 and the upper end of the cylinder shaft 220, and a vertical axis spring s2 (a spring whose length increases and decreases along the vertical axis and is elastically restored, a P wave vibration absorption spring) is provided between them. ) is interposed (arranged) to elastically absorb the P-wave vibration, thereby reducing and minimizing the impact of the main body 10 from the P-wave vibration.

The tilt vibration absorption unit 300 responds to and counteracts when internal facilities are twisted, tilted, or swung due to complex waveforms of seismic waves, including P-wave vibration and S-wave vibration. It is installed to absorb this and includes a first axis 310 and a second axis 320. However, the configuration of the tilt vibration absorbing unit 300 may refer to the configuration of FIG. 1 (b). The first shaft 310 takes a L shape connected vertically from the side wall of the cylinder shaft 220. The second axis is arranged horizontally on the top of the first axis, one end of the second axis is pivot coupled (p1) to the top of the first axis to enable axis rotation, and the other end of the second axis is connected to the main body to enable axis rotation in other directions. A pivot coupling (p2) is installed on both sides (or at least one side) of (10). If vibration absorption is well achieved in the S-wave vibration absorption unit 100 and the P-wave vibration absorption unit 200, and the generation of complex waveforms is minimized, the tilt vibration absorption unit 300 may be omitted. However, in the present invention, the main vibration is usually absorbed in the S-wave vibration absorption unit 100 and the P-wave vibration absorption unit 200, and the tilt vibration absorption unit 300 absorbs the remaining vibration. do.

At the bottom of the main body 10, a central weight 11 that acts as a weight may be attached and installed to help the main body, which shakes due to vibration, quickly find its center and return to its original position. In addition, the shape of the central weight 11 may be provided as a curved portion 11a whose lowest portion (bottom) has a curved or round shape. The curved portion 11a is formed in a curved shape to prevent it from colliding with or contacting the upper end of the cylinder shaft 220 disposed below the main body 10 when the main body 10 is shaken.

Between the outer box 110 and the inner box 120, and between the main body 10/center weight 11 and the cylinder shaft 220, a signal (light, sound, etc.) is generated when the position is deviated, informing the manager of an abnormality. A position detection sensor (c20) that notifies (warns) the status may be attached. The position sensor (c10) can be installed using commercially available parts that operate by magnetic force, light, Doppler effect, etc. In the drawing, a pair of sensor components are attached to the outer bottom wall 111 of the outer box 110 and the inner bottom wall 121 of the inner box 120, respectively, and a position detection sensor c10 is configured to operate when the position is misaligned. It is illustrated. In addition, an example configuration in which a pair of sensor parts are attached to the bottom of the main body 10 (i.e., the bottom of the central weight 11} and the top of the cylinder shaft 220 to form a position sensor c10 is also exemplified. It is done.

Main body (10);
S-wave vibration absorption unit (100);
Enclosure unit (110);
Naehambu (120);
P wave vibration absorption unit (200);
Piston shaft (210);
Cylinder shaft (220);
Tilt vibration absorption unit 300;
1st axis 310;
2nd axis 320;

Claims (1)

It includes an inner box part 120 that is seated on the outer box part 110 in contact with the ground,
It includes a L-shaped first axis 310 and a second axis 320, one end of which is pivotably coupled to the upper end of the first axis 310, and a main body portion 10 is pivoted at the other end of the second axis 320. In a combined earthquake-resistant switchgear,
It further includes a cylinder shaft 220 and a piston shaft 210,
The cylinder shaft 220 has the shape of an empty cylinder with the top and sides closed and only the bottom open, and the inner periphery corresponds to the outer periphery of the piston shaft 210, and the piston shaft (220) allows vertical movement of the cylinder shaft 220. It is inserted into the top of the cylinder shaft 210, and the first shaft 310 is connected from the side wall of the cylinder shaft 220,
The piston shaft 210 has a rod shape and its lower end is fixed to the center of the inner bottom wall 121 of the inner compartment 120, and a gap is secured between the upper end of the piston shaft 210 and the upper end of the cylinder shaft 220, A vertical axis spring (s2) is interposed between them to elastically absorb vibration,
It is attached to the bottom of the main body 10 and further includes a central weight 11 that serves as a weight so that the main body shaken by vibration quickly finds its center and returns to its original position,
The central weight 11 is formed at its lowest part in a correspondingly round shape so as not to contact the upper end of the cylinder shaft 220 disposed below the main body 10 when the main body 10 is shaken, a curved portion 11a ), which further includes
An earthquake-resistant switchgear characterized in that.