KR20150006251A - Distributing board - Google Patents

Abstract

Provided is an earthquake-proof type distributing board which includes an external case which comprises a current receiving part which has a door which can be opened/closed in a side and receives power, a disconnect switch, a vacuum circuit breaker, and an ammeter; an earthquake-proof part which comprises multiple first earthquake-proof members combined with the bottom edge of the external case, a second earthquake-proof member which is respectively arranged in the lower side of the first earthquake-proof member and is fixed onto an installation side where vibration is generated, and elastic member which is interposed between the first earthquake-proof member and the second earthquake-proof member and transmits the vibration generated from the first earthquake-proof member and the second earthquake-proof member to the second earthquake-proof member and the first earthquake-proof member; a horizon control part which is arranged between the elastic member and the second earthquake-proof member and controls the horizon of the first earthquake-proof members on the installation side, and a sensor part which is interposed between the external case and the installation side and senses a state that the external case moves in the horizontal or vertical direction on the installation side.

Description

Earthquake-resistant switchboard {Distributing board}

The present invention relates to an earthquake-resistant switchboard, and more particularly, to an earthquake-resistant switchboard that can reduce vibration applied from an installation 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.

The above-described switchboard is described in detail in the application No. 10-2009-0121431, and a duplicate explanation will be omitted.

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.

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.

An object of the present invention is to provide an earthquake-resistant switchboard that is capable of preventing vibrations from being applied in a combined manner in vertical and horizontal directions and capable of automatically shutting off power at the beginning of vibration .

According to an aspect of the present invention, there is provided an enclosure main body including a door capable of being opened and closed at one side thereof, a power receiver for receiving power, and a disconnector, a vacuum breaker and an ammeter; A second vibration-proofing member disposed on a lower side of the first vibration-proofing member and fixed on a mounting surface where vibration is generated, and a second vibration- And an elastic member interposed between the first and second seismic members to prevent the vibration generated from the first and second seismic members from being transmitted to the second or the first seismic member, respectively. A horizontal adjusting unit disposed between the elastic member and the second vibration-proofing member to adjust a horizontal position of the first vibration-proofing members on an installation surface, and a horizontal adjustment unit interposed between the enclosure body and the installation surface, And a sensor unit for sensing a state of being moved in a horizontal direction or a vertical direction.

The earthquake-resistant switchboard may further include a coupling member inserted into a coupling hole formed on an upper surface of the first vibration-proof member and coupling the first vibration-proof member, the second vibration-proof member, and the elastic member.

The housing includes a first support plate fixed to a bottom surface of the enclosure main body and a housing space protruding downward from the first support plate and having a circular or polygonal cross section so that the elastic member is inserted therein. .

The elastic member may be formed such that the diameter or the cross-sectional area of the upper and lower ends is smaller than the diameter or the cross-sectional area of the central portion so that the elastic member is in contact with a central portion of the inner peripheral surface of the housing.

The second vibration-proof member may include a second support plate fixed to the upper surface of the mounting surface, and a fixing member protruding upward from the second support plate, inserted into the elastic member, and having a rectangular male screw on an outer circumferential surface thereof.

The anti-earthquake-resistant switchboard may further include a support plate coupled to the fixing member to prevent the elastic member from being detached from the housing.

Wherein the horizontal adjustment portion is formed by forming a square female screw on the inner circumferential surface so as to correspond to the rectangular male screw formed on the fixing member and fastened to the fixing member and being reciprocally transported in the vertical direction along the longitudinal direction of the fixing member, A first square nut and a second square nut fastened to the lower side of the first square nut to fix the position of the first square nut.

And a C-shaped bus bar bar having a coupling groove formed therein for increasing a coupling force of the charger bus bar connected to the disconnecting unit may be provided at an end of the insulator provided at the water receiver.

The bus bar and the charger bus bar are connected to each other by a first fastening member inserted into the fastening groove and coupled to the inside of the bus bar bar, a second fastening member projecting from the upper end of the first fastening member, A third fastening member protruding from an upper end of the second fastening member and having a male screw formed on an outer circumferential surface thereof so as to be fastened to the charger bus bar, and a third fastening member inserted partially into the fastening groove, And a fourth fastening member which is inserted and press-fitted on the upper surface of the charger booth bar.

The sensor unit may include at least one or more of a photo sensor, a proximity sensor, a motion sensor, a displacement sensor, and an acceleration sensor.

Wherein the sensor unit includes a first power receiving member fixed to a bottom surface of the enclosure main body and a second power receiving member fixed to correspond to a position of the first power receiving member on a mounting surface, It is possible to detect that a displacement difference occurs in the horizontal direction.

The sensor unit includes a third power receiving member fixed to one side surface of the enclosure main body and the other side surface adjacent to the one side surface, and a third power receiving member facing the third power receiving members at one side of the mounting surface and the other side adjacent to the one side surface, The fourth power receiving member and the fourth power receiving member can sense that the displacement difference is generated in the horizontal direction or the vertical direction.

According to the earthquake-resistant switchboard of the present invention, the vibration applied in the vertical direction and the horizontal direction can be suppressed through the dust-proof portion, and the durability of the dust-proof unit can be remarkably increased by improving the shape of the elastic member. In addition, it is possible to safely protect the enclosure disposed at the upper portion of the dustproof portion from vibration, and furthermore, it is possible to increase the coupling force due to the vibration by connecting the busbar bar to the insulator, Since the power can be shut off, secondary safety accidents can be prevented.

1 is a front view schematically showing the outline of an earthquake-resistant switchboard according to an embodiment of the present invention.
Fig. 2 and Fig. 3 are cross-sectional views schematically showing the interior of the earthquake-resistant adaptation type switchboard shown in Fig.
Fig. 4 is a sectional view showing the dustproof portion shown in Fig. 2. Fig.
5 is a cross-sectional view showing a vibration preventing portion of an earthquake-sensitive type switchboard according to another embodiment of the present invention.
Fig. 6 is an enlarged view of a part of the handle shown in Fig. 2. Fig.
FIGS. 7 to 9 are reference views showing the fastening screws provided in the water receptacle of FIG.
10 is a partially enlarged view showing the sensor unit shown in Fig.

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 an earthquake-resistant switchboard 1 according to an embodiment of the present invention, and Figs. 2 and 3 are cross-sectional views schematically showing the inside of an earthquake-

1 to 3, an earthquake-resistant switchboard 1 according to the present invention includes a receiver 20 receiving power from the outside, a disconnector 30, a vacuum breaker 40 and an ammeter And an anti-vibration unit 100 for supporting a lower portion of the enclosure main body 10. The dust-

The earthquake-resistant 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 14 is provided on the door part 12 so that an operator can check the inside of the enclosure main body 10. [

The viewing window 14 is formed of transparent glass or synthetic plastic so that the inside of the enclosure main body 10 can be seen and the viewing window 14 is formed to be openable and closable, As shown in FIG.

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, the power generation amount, the solar radiation amount, the network environment setting, the power generation efficiency, and the like, and is preferably disposed on the door unit.

The dustproof portion 100 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 thereof will be described later.

Fig. 4 is a sectional view showing the dustproof portion shown in Fig. 2. Fig.

4, the vibration isolator 100 includes a first vibration proof member 110 coupled to a bottom surface of the enclosure main body 10, a second vibration proof member 110 disposed below the first vibration proof member 110, And an elastic member 130 coupled between the first and second seismic members 110 and 120. The first and second seismic members 110 and 120 and the elastic member 130, (130).

Of course, the elastic member 130 may be coupled between the first and second seismic members 110 and 120 without the coupling member 140.

Here, the enclosure body 10 corresponds to a portion to be protected from vibration generated from the outside, and the second vibration-proof member 120 is installed on a mounting surface, that is, a vibrating portion to which vibration is applied.

In addition, the enclosure main body 10, that is, the portion to be imaged, is preferably installed in an independent enclosure requiring a dustproof structure installed on the mounting surface, such as a generator, an electric distribution board, a distribution board, a motor control panel,

Hereinafter, the switchgear 1 in which the dustproof portion 100 and the enclosure main body 10 are combined will be described in detail in order to prevent duplication of the dustproof portion 100. FIG.

The first vibration proof member 110 is coupled to a plurality of bottom edge portions of the enclosure main body 10.

The first seismic member 110 includes a first support plate 111 fixed to the bottom surface of the enclosure body 10 and a second support plate 111 protruding downward from the center of the first support plate 111, And a housing 114 having a receiving space 115 formed therein.

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

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

The elastic member 130 prevents the first and second seismic members 120 and 120 from contacting each other and prevents the first and second seismic members 120 and 120 from contacting one another And provides a function of preventing the generated vibration from being transmitted to the other side.

The second seismic member 120 includes a second support plate 121 fixed on the installation surface and a fixing member 123 protruding from the upper portion of the second support plate 121.

The fixing member 123 is formed so as to protrude vertically upward on the second support plate 121, and has a rectangular male screw on an outer circumferential surface thereof.

The fixing member 123 includes a height adjusting unit 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 formed on an inner circumferential surface thereof so as to be vertically reciprocable along the longitudinal direction of the fixing member 123, 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 rotated in the same direction to adjust the height on the fixing member 123.

The fixing member 123 is provided with a supporting plate 150 coupled to the upper side of the first square nut 161 and having a height varying in accordance with the vertical reciprocating motion of the first square nut 161.

The support plate 150 provides a function of preventing the elastic member 130 from being detached from the housing 114 by contacting the lower end of the horizontal vibration preventing member 133.

The support plate 150 supports the elastic member 130 to correspond to a position where the height adjusting unit 160 is fixed on the fixing member 123 to maintain the horizontal state of the enclosure body 10 Let's do it.

The coupling member 140 is coupled to the center of the fixing member 123 through the coupling hole 112 and the through hole 132 and is connected to the first vibration-proof member 110, the elastic member 130, And the seismic member 120 are coupled at the same time to prevent them from vertically or horizontally deviating from each other.

A head 141 provided at an end of the coupling member 140 is provided on the upper surface of the coupling hole 112 so that the first vibration proof member 110 can flow in a vertical direction from the second vibration- And a washer 142 is fastened to prevent friction or disengagement between the engaging hole 112 and the head 141. As shown in FIG.

The vibration damping unit 100 is vertically downwardly pressed by the load applied to the first vibration damping member 110 and the mounting surface of the vibration damping unit 100 is vertically Vibration can be achieved while vibrating.

The elastic member 130 is slightly compressed so that the height of the elastic member 130 is reduced so that the first vibration member 110 is lowered and the first vibration member 110 and the second vibration member 120 are in direct contact with each other Can be prevented.

Further, there is an effect that the minute vibration and noise generated in the switchboard 1 disposed above the first vibration-proof member 110 are remarkably reduced.

5 is a cross-sectional view showing an anti-vibration unit 200 of an anti-earthquake-resistant switchboard according to another embodiment of the present invention.

5, the outer circumferential surface of the elastic member 230 is formed in a curved line in which a central portion protrudes in the vertical direction as the outer shape of the jar, and therefore, the diameter of the upper and lower ends of the elastic member 230, As shown in FIG.

When one end face of the elastic member 230 is polygonal, the cross-sectional area of the upper end and the lower end may be smaller than the cross-sectional area of the central portion.

The central portion of the elastic member 230 contacts the inner peripheral surface of the housing 114 when the elastic member 230 is inserted into the housing 114 and the upper and lower ends of the elastic member 230, An empty space is formed between the inner circumferential surfaces.

When the elastic member 230 receives the horizontal force, the pressure is concentrated on the central portion of the elastic member 230, and the upper and lower ends of the elastic member 230 are moved to the inner space between the housings 114 By dispersing the pressure or pushing it, the dustproof effect can be increased.

Fig. 6 is an enlarged view of the water receiver 20 shown in Fig. 2 in an enlarged scale.

Referring to FIG. 6, a power receiver 20 is provided on the inside upper portion of the earthquake-sensitive control switchboard 1 as shown in FIG. At this time, a voltage is concentrated on a portion of the lower portion of the insulator 21 provided in the power receiver 20 to transmit electricity supplied from the outside.

Therefore, the bus bar bar 310 having a large cross-sectional area and a large contact area is provided at the lower end of the insulator 21.

FIGS. 7 to 9 are reference views showing the fastening screw 300 provided in the receiver of FIG.

The bus bar bar 310 is formed as a hollow square bar and is elongated in the longitudinal direction, and a coupling groove 311 is formed on the upper surface thereof along the longitudinal direction.

The width of the coupling groove 311 is smaller than the width of the bus bar bar 310 so that one end face of the bus bar bar 310 is formed in a substantially C shape.

The charger booster bar 310 is coupled to the charger booster bar. At this time, a fastening screw for coupling the charger booster bar on the charger bus bar is provided.

The fastening screw 150 includes a first fastening member 360 inserted into the fastening groove 311 and coupled to the inside of the bus bar bar 310 and a second fastening member 360 projecting from the upper end of the first fastening member 360 A second fastening member 370 coupled to the inner surface of the fastening groove 311 and a third fastening member 370 projecting from the upper end of the second fastening member 370 and having a male screw on the outer circumferential surface, And a third fastening member 380 inserted into the coupling hole formed at the center and partially inserted on the coupling groove 311 to press the upper surface of the charger booster bar 320, And includes a fastening member 390.

The first fastening member 360 has a substantially rectangular shape and is formed with a first corner portion 361 facing the first corner portion in a diagonal direction and a second corner portion 361 facing the second corner portion 361 facing another in the diagonal direction adjacent to the first corner portion. The corner portion 362 is formed at a right angle.

More specifically, the first fastening member 360 inserted along the fastening groove 311 is rotated 90 ° clockwise inside the bus bar bar 310 to be coupled into the fastening groove 311 .

At this time, as the first fastening member 360 rotates, the first corner portion 361 is rounded and can be rotated while being separated from or in contact with the inner wall of the bus bar bar 310. And the second corner portion 362 is formed at a right angle so that the first fastening member 360 is prevented from further rotating from the inner wall of the bus bar bar 310 so that the first fastening member 360 And the coupling is made inside the bus bar bar 310.

The second corner portion 362 is not limited to a right angle shape so long as it prevents the first fastening member 360 from rotating in the forward direction within the bus bar bar 310 in the forward direction.

The second fastening member 370 has a substantially square shape and has a height corresponding to the thickness of the fastening groove 311 and has a rounded third corner portion 371 at a position corresponding to the first corner portion 361, And a fourth corner portion 372 formed at a right angle at a position corresponding to the second corner portion 362 is formed.

Accordingly, when the first fastening member 360 is inserted into the bus bar bar 310, the second fastening member 370 is rotated in the fastening groove 311. When the first fastening member 360 rotates clockwise, the second fastening member 370 also rotates in the fastening groove 311 interlockingly.

The third corner portion 371 is formed in a round shape and the fourth corner portion 372 is formed at a right angle so that the first and second fastening members 370 and 360 are rotated clockwise 90 ° rotation is possible, and rotation is prevented at an angle higher than that.

The first fastening member 360 and the second fastening member 370 are coupled to the bus bar bar 310 and the fastening groove 311, respectively.

The third fastening member 380 is a component inserted into the charger bus bar 320 coupled to the upper portion of the second fastening member 370 or the fourth fastening member 390. The third fastening member 380 has a male screw on the outer circumferential surface.

The fourth fastening member 390 includes a fastening block 391 disposed on the upper surface of the bus bar bar 310 and a fastening protrusion 394 protruding downward from the fastening block 391.

The fastening block 391 is formed in a hexahedron shape with one or a plurality of heat dissipating holes 193 passing through the side surface.

The heat dissipation holes 193 serve to discharge heat emitted from the bus bar bar 310 or the charger bus bar 320.

The fastening protrusion 394 protrudes through the lower center of the fastening block 391 and is inserted into the fastening groove 311. Then, the fastening block 391 is inserted into the third fastening member 380, the bottom of the fastening block 391 contacts the second fastening member 370, and is positioned on the upper surface of the bus bar bar 310 The fastening protrusion 394 prevents the fastening groove 311 of the fastening groove 311 and the second fastening member 370 of the fastening groove 311 from rotating.

Therefore, when the fourth fastening member 390 is positioned on the upper surface of the bus bar bar 310, the first fastening member 360 to the third fastening member 380 are prevented from rotating in the reverse direction, The member 360 is prevented from being detached from the bus bar bar 310.

When the fourth fastening member 390 is positioned on the upper surface of the bus bar bar 310, the charger bus bar 320 is coupled to the upper portion of the fourth fastening member 390.

Then, a nut is fastened to the upper surface of the charger bus bar 320 and coupled with the third fastening member 380.

At this time, a spring washer may be interposed between the upper surface of the fastening block 391 and the nut to prevent the fastening state from being released.

10 is a partially enlarged view showing the sensor unit shown in Fig.

Referring to FIG. 10, a sensor unit 180 is disposed between the enclosure main body 10 and a mounting surface to detect a state in which the enclosure main body 10 is horizontally moved.

The sensor unit 180 includes a photosensor, a proximity sensor, a motion sensor, a displacement sensor, and an acceleration sensor. The sensor unit 180 senses a state where the enclosure body 10 is shaken or moved horizontally by an external force.

The sensor unit 180 includes a first power receiving member 181 fixed to the bottom surface of the enclosure main body 10 and a second power receiving member 181 fixed to the mounting surface of the first power receiving member 181, 182).

The first and second power reception members 181 and 182 are disposed adjacent to each other within a predetermined range between the first power reception member 181 and the second power reception member 182. At this time, The controller 1 may consider the abnormal vibration such as an earthquake and automatically shut off the internal power supply of the switchgear 1 when a displacement difference due to a distance such as a height, (Not shown).

Accordingly, the sensor unit 180 senses the vibration at the initial stage of the transmission of the generated vibration, thereby preventing a secondary safety accident caused by a disaster such as an earthquake.

The sensor unit 180 further includes a third power receiving member 183 fixed to one side surface of the enclosure main body 10 and the other side surface adjacent to the one side surface, And a fourth power receiving member 184 fixed to the third power receiving member 183 so as to face the third power receiving members 183, respectively.

Each of the third and fourth power reception members 183 and 184 is disposed on each of adjacent side surfaces between the enclosure main body 10 and the mounting surface so as to detect a displacement difference in the forward, have.

Therefore, in addition to the first power receiving member 181 and the second power receiving member 182, the vibration can be sensed more precisely in the horizontal direction as well as in the front-rear direction.

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, 200: anti-vibration member 110: first anti-vibration member
120: second seismic member 130, 230: elastic member
140: coupling member 150:
160: height adjuster 300: fastening screw
310: Bus Booth Bar 320: Charity Bus Bar
360: first fastening member 370: second fastening member
380: third fastening member 390: fourth fastening member
1: Earthquake-resistant switchboard
10: Enclosure body 20:
21: insulator 30: breaker
40: Vacuum circuit breaker

Claims (12)

An enclosure main body having a door capable of being opened and closed at one side thereof and having a power receiving portion for receiving power therein, and a disconnecting device, a vacuum circuit breaker and an ammeter;
A second vibration-proofing member disposed on a lower side of the first vibration-proofing member and fixed on a mounting surface where vibration is generated, and a second vibration- And an elastic member interposed between the first and second seismic members to prevent the vibration generated from the first and second seismic members from being transmitted to the second or the first seismic member, respectively.
A horizontal adjusting unit disposed between the elastic member and the second vibration-proofing member and capable of adjusting the horizontal position of the first vibration-proofing members on an installation surface,
A sensor unit interposed between the enclosure main body and an installation surface to detect a state in which the enclosure main body is moved in a horizontal direction or a vertical direction on an installation surface;
And an earthquake-resistant switchboard. The method according to claim 1,
Further comprising a coupling member inserted into a coupling hole formed on an upper surface of the first vibration-proof member and coupling the first vibration-proof member and the second vibration-proof member to the elastic member. The method of claim 2,
Wherein the first vibration-
A first support plate fixed to a bottom surface of the enclosure main body and a housing protruded downward from the first support plate and provided with a receiving space formed in a circular or polygonal cross section so that the elastic member is inserted therein, Earthquake - resistant switchboards. The method of claim 3,
The elastic member
Wherein a diameter or a cross-sectional area of the upper end and the lower end is formed to be smaller than a diameter or a cross-sectional area of the central portion so that a portion of the upper end and the lower end of the housing are in contact with the central portion of the inner circumferential surface of the housing. The method of claim 3,
Wherein the second vibration-
A second support plate fixed to an upper portion of the installation surface; and a fixing member protruding upward from the second support plate and inserted into the elastic member, wherein a fixing member having a rectangular male screw is formed on an outer circumferential surface thereof. The method of claim 5,
And a support plate coupled to the fixing member to prevent the elastic member from being detached from the housing. The method of claim 6,
Wherein the horizontal adjustment unit comprises:
A first square nut formed on the inner circumferential surface of the inner circumferential surface so as to correspond to the square male screw formed on the fixing member and being engaged with the fixing member and being reciprocated in the vertical direction along the longitudinal direction of the fixing member to contact the lower side of the support plate; And a second square nut fastened to the lower side of the first square nut to fix the position of the first square nut. The method according to claim 1,
Wherein the end of the insulator provided at the power receiver is provided with a C-shaped bus bar having a coupling groove formed therein to increase a coupling force of the charger bus bar connected to the disconnector. The method of claim 8,
The bus bar bar and the charger bus bar are connected to each other,
A first fastening member inserted into the fastening groove and coupled to the inside of the bus bar bar; a second fastening member protruding from the upper end of the first fastening member and coupled to the inner surface of the fastening groove; A third fastening member having a male thread formed on an outer circumferential surface thereof so as to be projected from the upper end and to be fastened to the first fastening bar bar, and a second fastening member inserted partially into the fastening groove, And a fourth fastening member for pressing and fastening the first fastening member and the second fastening member. The method according to claim 1,
The sensor unit includes:
Wherein the at least one of the plurality of sensors includes a photo sensor, a proximity sensor, a motion sensor, a displacement sensor, and an acceleration sensor. The method according to claim 1,
The sensor unit includes:
A first power receiving member fixed to a bottom surface of the enclosure main body and a second power receiving member fixed on a mounting surface so as to correspond to a position of the first power receiving member,
And detects a displacement difference in a horizontal direction between the first and second power reception members. The method according to claim 1,
The sensor unit includes:
A third power receiving member fixed to one side surface of the enclosure main body and the other side surface adjacent to the one side surface,
And fourth power reception members fixed to oppose the third power reception members at one side of the mounting surface and at the other side adjacent to the one side, respectively,
And detects a displacement difference between the third and fourth power reception members in the horizontal direction or the vertical direction.

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