KR20160005599A

KR20160005599A - Vibration Proof Unit for Distributing Board

Info

Publication number: KR20160005599A
Application number: KR1020140084782A
Authority: KR
Inventors: 박기주; 허명석
Original assignee: 주식회사 케이디파워; 박기주
Priority date: 2014-07-07
Filing date: 2014-07-07
Publication date: 2016-01-15
Also published as: KR101648164B1

Abstract

The present invention provides an anti-vibration unit for a power receiving and distributing board, which comprises: a plurality of first support parts coupled to the bottom edges of an enclosure body of the power receiving and distributing board; second support parts disposed on a lower side of the first support parts, respectively, and secured to an upper surface of a vibrating unit that generates vibration; a resilient part interposed between the first support part and the second support part to prevent vibration from being transferred in a direction from the first support part to the second support part or in a direction from the second support part to the first support part; and a fixing part integrally extending upward from the center of the second support part and passing through the resilient part and the first support part to simultaneously couple the same.

Description

{Vibration Proof Unit for Distributing Board}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vibration-damping unit for a switchgear, and more particularly, to a vibration-damping unit for a switchgear which can reduce vibration applied from a mounting surface.

In general, the switchgear is responsible for receiving power from the power supplier and supplying power to the equipment requiring power consumption, and is building related facilities of a conventional power station having power receiving facilities and power distribution facilities.

For example, the inside of the above-mentioned switchboard is divided into an extra high-voltage side and a low-voltage side, and the power receiving equipment receiving electricity from the power supplier KEPCO and the electricity received through the power receiving equipment are changed to the voltage or capacity required by the user And a circuit breaker to protect the entire facility from accidents such as power outages.

In consideration of the safety of electric shock and fire in the process of use, the switchboard used in this case is an insulated main body having a switchgear door for restricting direct contact with the outside and for inspecting or maintaining the inside of the switchgear, In consideration of reliability against a supply voltage, various protective devices such as a circuit breaker and a lightning arrester are installed in the main body as essential requirements.

In addition, such a switchboard is connected to an inverter that converts the DC current supplied from the connection module into an AC current for automatic management.

The inverter includes a PCB, a reactor, a capacitor, a measurement control module, an SMPS, an EMI filter, and a transformer for converting electric power into AC current to supply electric power.

And an output unit connected in series to the input unit and outputting a direct current output from the input unit to the inverter, and an output unit for outputting a current value and a voltage value And monitors the received signal.

Such a conventional technology relating to a switchboard is described in detail in a registration application No. 20-0457648 entitled "Wiring for a Switchboard ".

However, the conventional switchboard has a vibration proofing facility corresponding to the vibration applied in either one of the vertical direction and the horizontal direction from the installation surface, and therefore, there is a limit to the complex vibration damping in both the vertical direction and the horizontal direction.

Also, there is still a problem that the anti-vibration structure is easily broken when the vibration in the horizontal direction is applied.

In addition, there is a problem in that it is missed when the entire horizontal level of the switchboard is detected and the maintenance is performed in response to the change.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a vibration-damping unit for a power and / or control panel capable of coping with vibrations applied in a vertical and horizontal direction and capable of maintaining a balance with respect to a horizontal inclination of a power- .

In order to accomplish the above object, according to the present invention, there is provided a cabinet comprising: a first support portion coupled to a plurality of corners of a bottom surface of an enclosure main body of a switchgear; A second support portion disposed on the lower side of the first support portion and fixed to an upper surface of the excitation portion where vibration is generated; An elastic portion interposed between the first support portion and the second support portion to prevent transmission of vibration from the first support portion toward the second support portion or from the second support portion toward the first support portion; A fixing portion extending integrally from the center of the second support portion to integrally connect the elastic portion and the first support portion to each other and a fixing portion disposed vertically between the bottom surface and the engaging portion of the enclosure main body, And a sensor unit for detecting that the sensor unit is deformed.

The first support portion is fixed to the bottom surface of the enclosure main body and has a first support plate on which a fixing hole for allowing the fixing portion to flow therein is formed, and a first support plate projecting downward from the first support plate, And a first vibration damping pad interposed between the first support plate and the bottom surface of the housing body.

The elastic portion may be disposed to contact the inner circumferential surface of the housing and the bottom surface of the first support plate with a first through hole penetrating the inside thereof and contacting the outer circumferential surface of the fixing portion.

The second support portion may include a second support plate fixed to the upper surface of the excitation portion and a second vibration damping pad interposed between the second support plate and the excitation portion.

The vibration-damping unit for a power transmission and transmission system may further include a support plate coupled to the fixing part to prevent the elastic part from being detached from the accommodation space inside the housing.

Wherein the sensor unit includes a sensor body formed to be long in a direction toward the outer side of the housing body from the bottom surface of the housing body, and a plurality of sensors disposed at vertical intervals in the sensor body, And a tilt sensor that detects when the tilt of the main body is deformed.

The sensor unit may be provided on a portion of the enclosure main body and may have a length corresponding to a height between the first support unit and the second support unit.

According to the vibration-damping unit for a switchgear according to the present invention,

First, there is an effect that maintenance can be performed corresponding to the change of the horizontal direction inclination of the switchboard according to the flow of time,

Second, vibrations applied in the vertical direction and the horizontal direction can be suppressed through the dustproof unit, and the durability of the dustproof unit can be remarkably increased by improving the shape of the elastic part.

Third, it is expected that the hardness of the inside of the elastic part can be different, and the protection of the switchboard can be safely protected regardless of the magnitude of the vibration.

1 is a front view schematically showing the outline of a switchboard according to an embodiment of the present invention.
2 is a partially enlarged view showing the dustproof unit for the power transmission &
Fig. 3 is an exploded perspective view showing the dustproof unit for the power distribution panel shown in Fig. 2. Fig.
4 is a partially enlarged perspective view showing the elastic portion shown in Fig.
5A and 5B are reference views showing the front surface and the flat surface of the elastic portion shown in Fig. 4, respectively.
6 is a reference view showing a state in which the vibration-damping unit for a switchgear shown in Fig. 2 is pressed in the vertical direction.
Fig. 7 is a reference view showing a state in which the vibration-damping unit for a switchgear shown in Fig. 2 is pressed in the horizontal direction.
8 is a reference view showing a state in which a slope of a vibration-damping unit for a switchgear is measured according to an embodiment of the present invention.
Fig. 9 is a reference view showing a state in which it is shifted laterally by an external force in the state shown in Fig. 8. Fig.
10A and 10B are plan views showing the sensor unit.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The terms and words used in the specification and claims should not be construed to be limited to ordinary or dictionary meanings, and the inventor should appropriately define the concept of the term to describe its invention in the best way possible It should be construed in the meaning and concept consistent with the technical idea of the present invention.

1 is a front view schematically showing the outline of a switchboard 1 to which a dustproof unit 100 for a switchboard according to an embodiment of the present invention is coupled.

1, the switchboard 1 includes an enclosure main body 10 including an inverter module (not shown), a water distribution module (not shown) and a transformer (not shown) , And a vibration-damping unit (100) for a transmission / transmission system that supports a lower portion of the enclosure main body (10).

The switchboard (1) according to the present invention will be described as an example in which sunlight is used as a basic power generation device.

The enclosure main body 10 is formed in a rectangular parallelepiped shape and has one or a plurality of partition walls (not shown) so that the inverter module, the water distribution module, and the transformer can be positioned therein, (Not shown) is formed.

In addition, although not shown in the drawing, basic components such as a PCB, a circuit breaker, a lightning arrester, a fuse, an opening and closing device, and a structure for heat dissipation and moisture-proof are additionally provided.

A door portion 12 is provided on one side surface of the enclosure main body 10 to selectively open the space portion.

The door unit 12 is provided with one or a plurality of openings for partially or totally opening the space, and the inverter module, the water distribution module, and the transforming unit are installed and maintained through the door unit 12.

The door portion 12 may be formed as a hinged or sliding door structure, and the door portion 12 of the switchboard 1 according to the present invention is installed as a hinged door.

At this time, a sight window (not shown) may be provided on the door part 12 so that an operator can confirm the inside of the enclosure main body 10.

The viewing window may be formed of transparent glass or synthetic plastic so that the inside of the enclosure main body 10 is visible, and the viewing window may be formed to be openable and closable so that a hand or a part of the upper body of the operator may be moved .

Also, the enclosure main body 10 includes a display unit 13 that displays electricity generation information input from and output from the inverter module and the water distribution module, and whether there is an abnormality.

The display unit 13 displays the current diagnosis status of the inverter module and the power distribution module, and the power generation amount, the solar radiation amount, the network environment setting, the power generation efficiency, and the like, and is disposed on the door unit 12.

The vibration-damping unit 100 for a transmission / distribution system has a function of preventing transmission of vibration generated from any one side of the enclosure main body 10 or the mounting surface to the other side, and a detailed description will be later.

3 is an exploded perspective view of the dustproof unit 100 for a power transmission / distribution system shown in FIG. 2, and FIG. 4 is an exploded perspective view of the elastic part 130 and FIGS. 5A and 5B are reference views showing the front face and the plane of the elastic part 130 shown in FIG. 4, respectively.

2 to 5B, the vibration-damping unit 100 for a switchgear includes a first support 110 coupled to a bottom of the enclosure body 10, a second support 110 disposed below the first support 110, A first support part 110 coupled to the first support part 110 and a second support part 120 coupled to the first support part 110 and the second support part 120, (Not shown).

Here, the enclosure body 10 corresponds to a vibrating portion to be protected from external vibrations, and the second supporting portion 120 is installed on a mounting surface, that is, a vibrating portion to which vibration is applied.

Also, it is preferable that the enclosure main body 10 is installed in an independent enclosure requiring a dustproof structure, as one selected from a generator, an electric distribution panel, a distribution panel, a motor control panel, and a waterfront panel.

A plurality of the first supporting portions 110 are coupled to the bottom edge portion of the enclosure main body 10.

The first support part 110 is provided with a first support plate 111 fixed to the bottom surface of the enclosure main body 10 and a second support plate 111 protruding downward from the center of the first support plate 111, And a first vibration damping pad 30 interposed between the first support plate 111 and the bottom surface of the enclosure main body 10.

The first support plate 111 has a function of fixing the housing 114 to the bottom surface of the enclosure main body 10 and has a coupling hole 112 at a central portion thereof so that the end of the fixing portion 140 can be inserted. .

The housing 114 has a circular or polygonal cross section and the elastic portion 130 is formed in a shape corresponding to the shape of the housing 114 and inserted into the accommodation space 115.

The elastic part 130 prevents the first support part 110 and the second support part 120 from coming into contact with each other so that the vibration generated from one side of the first support part 110 or the second support part 120 And is prevented from being transmitted in the other direction.

The elastic part 130 is formed with a first through hole 132 passing through the inside of the elastic part 130 and inserted into the first through hole 132 such that the fixing part 140 passes through.

The elastic portion 130 may be formed in a circular or polygonal shape corresponding to the shape of the housing 114. Hereinafter, a shape having a circular cross section as in FIG. 3 will be described as an example.

The first and second support portions 110 and 120 may be formed in the elastic portion 130 when the load of the first support portion 110 is applied to the upper portion of the elastic portion 130, Dust is prevented while preventing contact with each other.

A plurality of second through holes 135 are formed adjacent to the periphery of the first through holes 132 and aligned with the first through holes 132.

The elastic portion 130 may be formed in a first hardness range F1 formed adjacent to the first through hole 132 and around the second through hole 135 outside the first hardness range F1 The second hardness range F2 and the third hardness range F3 may be formed outside the second hardness range F2.

It is preferable that the first hardness range F1 is greater than the second hardness range F2 and the second hardness range F2 is greater than the third hardness range F3. Of course, the first hardness range F1 to the third hardness range F3 may be arranged such that some of the areas overlap, and the areas of the first hardness range F1 to the third hardness range F3 may be added or subtracted It is possible.

The elastic portion 130 is preferably made of a synthetic rubber material, more preferably GEPO250C.

The hardness of the material for vibration proof rubber is measured through a hardness tester for measuring the hardness of rubber or plastic. The hardness is divided into various types according to the strength of the tester and the spring. More precisely, there are cases where different types of rubber hardeners are used, so they can be selected with reference to the ASTM standard.

The hardness of the elastic part 130 measured in this manner is set such that the first hardness range F1 is about 60 to 70 hardness, the second hardness range F2 is about 55 to 60 hardness, the third hardness range F3, Is formed in a range of about 50 to 55 hardness.

The second support part 120 includes a second support plate 121 fixed on the installation surface and a second vibration damping pad 40 interposed between the second support plate 121 and the installation surface.

The fixing part 140 is integrally formed on the second supporting plate 121 so as to protrude vertically upward, and a rectangular male screw is formed on the outer circumferential surface.

The outer circumferential surface of the fixing portion 140 may be in close contact with the inner circumferential surface of the first through hole 132 formed in the elastic portion 130.

The lower end of the fixing part 140 is coupled with a height adjusting part 160 which is engaged with and coupled with a rectangular male screw formed on the outer circumferential surface.

The height adjuster 160 includes a first square nut 161 having a rectangular internal thread on an inner circumferential surface thereof so as to be vertically reciprocable along the longitudinal direction of the fixing portion 140, And a second square nut 162 fastened to the lower side of the nut 161.

The first square nut 161 and the second square nut 162 rotate in opposite directions and can be loosened or tightened, and they can rotate in the same direction to adjust the height on the fixed portion.

The fixing part 140 is coupled to the upper side of the first square nut 161 and is provided with a supporting plate 150 whose height changes according to the vertical reciprocating motion of the first square nut 161.

The support plate 150 serves to prevent the elastic part 130 from being detached from the housing 114.

The support plate 150 supports the elastic part 130 to correspond to a position where the height adjusting part 160 is fixed on the fixing part 140 to maintain the horizontal state of the enclosure body 10. [ Let's do it.

The fixing portion 140 may be configured to penetrate through the coupling hole 112 and the first hole 132 to simultaneously couple the first supporting portion 110 and the elastic portion 130 and the second supporting portion 120, Or in the horizontal direction.

The coupling hole 112 and the first through hole 132 may be formed in the first and second supporting portions 110 and 132 so that the first supporting portion 110 or the elastic portion 130 can elastically flow in the horizontal direction due to the elasticity of the elastic portion 130. [ Is formed to have a diameter larger than the diameter of the fixing portion (140).

The nut 141 provided at the end of the fixing part 140 is separated from the upper surface of the coupling hole 112 so that the first supporting part 110 can elastically flow from the second supporting part 120 in a vertical direction, Or when the first supporting part 110 is fastened on the fixing part 140 and the first supporting part 110 and the case body 10 are engaged with each other, A sound insulating member 143 inserted into the fixing part 140 and fastened to the nut 141 is disposed so that the nut 141 is in close contact with the sound insulating member 143 and the first supporting plate 111. At this time, the first vibration damping pad 30 is disposed between the sound insulating member 143 and the first support plate 111, and friction or separation occurs between the sound insulating member 143 and the first vibration damping pad 30 The washer 142 is fastened.

The sound insulating member 143 provides a function of reducing vibrations and noise generated between the fixing part and the upper surface of the first supporting part 110.

Fig. 6 is a reference view showing a state in which the dustproof unit 100 for a switchgear shown in Fig. 2 is pressed in the vertical direction.

Referring to FIG. 6, the first support portion 110 is in a state of being vertically downwardly pressed, and the elastic portion 130 is in contact with the first support portion 110 so as to be downwardly compressed, unlike FIG.

This is because the elastic portion 130 can be vertically downwardly pressed by the load applied to the first support portion 110 and pressure can be applied while the mounting surface vibrates in the vertical direction.

The elastic portion 130 is slightly compressed so that the height of the elastic portion 130 is reduced and the pressure of the elastic portion 130 is increased to prevent the first support portion 110 and the second support portion 120 from being in direct contact with each other .

Also, there is an effect that the minute vibration and noise generated in the switchboard 1 disposed above the first support part 110 are remarkably reduced.

7 is a reference view showing a state in which the vibration-isolating unit 100 for the power-transmission-side panel shown in Fig. 2 is pressed in the horizontal direction.

Referring to FIG. 7, the first support portion 110 shows a state in which the first support portion 110 is pressed in the left direction.

Here, the inner peripheral surface of the right side of the housing 114 is in close contact with the elastic part 130 to increase the contact area or increase the inner pressure, and the size of the first through hole disposed on the right side in the drawing is reduced. Is spaced apart from the inner circumferential surface of the elastic portion 130.

This is because the second support part 120 fixed to the installation surface due to a temporary earthquake such as an earthquake is conveyed in the rightward direction and exhibits a phenomenon occurring simultaneously with the movement of the first support part 110 A pressure is applied from the elastic part 130 to the inner peripheral surface of the housing 114 to increase the contact pressure between the inner peripheral surface of the right side of the housing 114 and the elastic part 130.

The first support portion 110 is disposed in the left direction relative to the second support portion 120 so that the fixing portion 140 is adjacent to the coupling hole 112 and the first through- Respectively. The diameter of the coupling hole 112 is preferably at least equal to or larger than the diameter of the first through hole 132.

Therefore, even if an external force is applied between the first support portion 110 and the second support portion 120, it is possible to minimize the damage of the enclosure main body 10 due to the shock absorbing action by deforming the elastic portion 130 .

8 is a reference view showing a state in which the inclination of the vibration-damping unit 100 for a switchgear according to the embodiment of the present invention is measured, and Fig. 9 is a view showing a state in which the vehicle is moved laterally by an external force in the state shown in Fig. And FIGS. 10A and 10B are plan views showing the sensor unit 180. FIG.

8 to 10B, the vibration-damping unit 100 for a switchgear according to the embodiment of the present invention is arranged in a vertical direction between the bottom surface of the enclosure main body 10 and the vibrating portion 50, 3, reference numeral 130) is deformed.

The resilience of the elastic part 130 naturally decreases over time, so that the overall height of the enclosure main body 10 is lowered. At this time, since the elasticity of the elastic part 130 may be different from the elasticity of the elastic part 130, the height difference of the enclosure main body 10 is generated, and the inclination of the enclosure main body 10 starts to be deformed.

When the inclination balance of the enclosure main body 10 is deformed, the elastic part 130 must be replaced because it indicates that the elastic part 130 has arrived at the replacement time.

Here, when the elasticity of the elastic part 130 is lowered and the inclination of the switchgear is changed, the sensor part 180 may be bent or cut in the horizontal direction to cause a problem in the dustproof unit 100 It informs. Then, the warning message can be informed to the operator based on the sensing signal of the sensor unit 180, the control instruction can be sent remotely, or the electric power inside the enclosure main body 10 can be controlled to be shut off.

The sensor unit 180 includes a sensor body 181 and a tilt sensor 184 inserted into a mounting hole 182 formed in the sensor body 181.

The sensor main body 181 is formed in a pipe shape extending from the bottom surface of the enclosure main body 10 in the direction of the engaging portion 50. Here, the vibrating unit 50 is a vibrating unit that is in contact with a ground or a ground, which generates an external force such as an earthquake and transmits in the direction of the bottom surface of the enclosure main body 10, .

Referring to FIG. 8, the exciter 50 is mounted on the ground to mount the enclosure main body 10 thereon. The mounting table 30 can be seen as a medium for transmitting vibrations such as an earthquake in the direction of the enclosure main body 10 between the ground and the enclosure main body 10. [

The sensor main body 181 may be installed in a vertical direction between the bottom surface of the enclosure body 10 and the upper surface of the mounting base 30 or between the first and second support portions 110 and 120 As shown in FIG. It is also preferable that a plurality of the dust-proof units 100 are provided adjacent to the dust-proof unit 100 disposed at the bottom corner of the enclosure main body 10.

Also, the sensor unit 180 is installed to correspond to the height between the first support unit and the second support unit after the enclosure main body 10 is installed on the mounting table 30. [

At least one tilt sensor 184 is provided inside the sensor body 181. At least one tilt sensor 184 is disposed at a central portion in the longitudinal direction of the sensor main body 181, and more preferably, a plurality of tilt sensors 184 are provided at regular intervals along the longitudinal direction of the sensor main body 181.

9, even when the enclosure main body 10 is horizontally spaced apart by an external force, the sensor main body 181 is bent or cut so that the corresponding correspondence can be promptly advanced.

Therefore, the sensor unit 180 can sense the elasticity of the elastic part 130 even when no external force is generated, thereby indicating the replacement period or the maintenance timing of the dustproof unit 100, It is possible to expect the effect of notifying the operator or blocking the power source when the enclosure main body 10 is shaken or inclined.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

100: Vibration-proofing unit for switchgear 110:
120: second support part 130: elastic part
140: fixing part 150: supporting plate
160: height adjusting unit 180: sensor unit
1: Switchboard 10: Enclosure main body

Claims

A plurality of first support portions coupled to a bottom edge portion of the enclosure main body of the power distribution panel;
A second support portion disposed on the lower side of the first support portion and fixed to an upper surface of the excitation portion where vibration is generated;
An elastic portion interposed between the first support portion and the second support portion to prevent transmission of vibration from the first support portion toward the second support portion or from the second support portion toward the first support portion;
A fixing part extending integrally from the center of the second supporting part to the upper part and connecting the elastic part and the first supporting part at the same time,
A sensor unit disposed in a vertical direction between the bottom surface of the housing body and the vibrating unit to sense a tilt or a height of the elastic unit being deformed;
And a vibration-damping unit for a power transmission / distribution system.

The method according to claim 1,
The first support portion
A first support plate fixed to a bottom surface of the enclosure main body and having a coupling hole through which the fixing portion can flow,
A housing having a receiving space formed in a circular or polygonal shape in one end thereof so as to be protruded downward from the first supporting plate and inserted into the elastic part;
And a first anti-vibration pad interposed between the first support plate and the bottom surface of the enclosure main body.

The method of claim 2,
The elastic portion
Wherein a first through hole is formed to penetrate the inside of the housing and make contact with an outer circumferential surface of the fixing portion so as to contact the inner circumferential surface of the housing and the bottom surface of the first support plate.

The method of claim 3,
The second support portion
A second support plate fixed to an upper surface of the vibrating unit, and a second vibration damping pad interposed between the second support plate and the vibrating unit.

The method of claim 4,
Further comprising a support plate coupled to the fixing portion to prevent the elastic portion from being detached from the accommodating space inside the housing.

The method of claim 2,
The sensor unit includes:
A sensor body extending from the bottom surface of the enclosure main body in the direction of the engaging portion,
And a tilt sensor inserted in a plurality of mounting holes formed at equal intervals in the longitudinal direction of the sensor body to sense a tilt of the sensor body in a vertical direction of the mounting hole when the tilt sensor is deformed. Dustproof unit.

The method according to claim 1 or 6,
The sensor unit includes:
And a length corresponding to a height between the first support portion and the second support portion after being installed on a portion of the enclosure main body.