KR20180045740A - Switchboard with smart doors - Google Patents

Abstract

The present invention relates to an incoming panel and a distribution panel. The distribution panel is equipment in which corresponding machines are provided to receive or distribute high-voltage or special high-voltage electricity in a power plant, a substation, a switchboard or equivalent. More particularly, the present invention relates to an intelligent distribution panel as a ubiquitous distribution panel having a remotely controllable door. The intelligent distribution panel housing machines which distribute power comprises: an external enclosure having an internal space where machines are disposed, and having an opening portion in one side thereof; at least one door coupled to the external enclosure in order to open and close the opening portion of the external enclosure; a driving unit disposed to apply a mechanical force to the at least one door in order to open and close the at least one door; and a wireless recognition tag connected to the driving unit to control the driving unit, and outputting a door control signal to the driving unit in response to a command from an external device.

Description

{SWITCHBOARD WITH SMART DOORS}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a switchboard including a water tank.

The present invention relates to an ubiquitous switchboard having a smart remote control door, and more particularly, to an ubiquitous switchboard which has a smart remote control door, and a switchboard which is installed in a power plant, a substation, a switchgear or the like for installing or dismounting high- .

The switchboard is protected by a metal enclosure so that the machine tools such as the high-pressure inlet switch and the breaker can not be easily operated by anyone other than the operator. Furthermore, since the switchboard is exposed to extraordinary pressures such as 22 kV, 66 kV, 154 kV and 345 kV and a correspondingly large current, the operator handling the switchboard must carry out work and maintenance according to safety regulations.

However, the operator has to open the door of the switchboard in order to record the meter reading results of various meters close to the switchboard or to check the inside of the switchboard.

Also, in order to identify the cause of accidents such as short circuit, short circuit or ground fault, the operator may have to operate the switchgear or circuit breaker of the switchboard in order to replace the machine mechanism inside the switchboard for maintenance. In that case, one or more doors of the one or more switchboards may be opened by opening a door or key locator to find the corresponding key for one or more specific doors in the key bundle or key box, There are inconveniences and difficulties. No. 1154009 (May 31, 2012) is disclosed as a related patent.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an intelligent switchboard having a remote control door.

According to an aspect of the present invention, there is provided an electrical distribution board for storing a mechanical device for distributing electric power, comprising: an enclosure having an inner space in which a mechanical device is disposed and having an opening at one side; A door coupled to the enclosure for opening and closing the opening of the enclosure; A driving unit arranged to apply a mechanical force to the door for opening and closing the door; And a wireless identification tag connected to the driver and outputting a door control signal to the driver in response to an instruction from the external device.

In one embodiment, the driver and the RFID are located outside the enclosure or door.

In one embodiment, the intelligent switchboard further comprises a coaxial cable interconnecting a drive disposed within the enclosure or door, and a wireless identification tag disposed on the exterior of the enclosure or door, through the enclosure or door.

In one embodiment, the intelligent switchboard further comprises a relay antenna disposed to pass through an enclosure or door to relay signal transmission between a radio frequency identification tag disposed inside the enclosure or door and a radio frequency identification reader located outside the enclosure or door .

The relay antenna includes: a first antenna for electromagnetic induction coupling with the antenna of the RFID; A second antenna which is disposed apart from the first antenna and electromagnetically coupled with the antenna of the reader side; And a wire connecting the first and second antennas to form one closed loop, the wire having a wiring for transmitting an induced current generated in each of the first and second antennas to the second and first loop antennas, respectively .

The intelligent switchboard may further include a fixture for fixing the relay antenna to the enclosure or the door.

In one embodiment, the wireless identification tag comprises: a storage for storing information about the switchboard or the door; A control unit communicating with an external device and controlling output of information stored in the storage unit; An output unit connected to the control unit and the driving unit and outputting the door control signal to the driving unit under the control of the control unit; And an antenna connected to the control unit.

The wireless recognition tag may have a patch shape and may be attached to one side of the driver.

The output unit may include a digital-to-analog converter for converting the digital signal of the control unit into an analog signal. The output of the digital-to-analog converter may be applied to a contact that induces operation of the power switch of the driver.

According to the present invention, it is possible to remotely monitor the door state of the switchboard, to selectively open or close only a desired door by remote control, and to open or close all the doors at once if necessary. Therefore, it is possible to improve the operation and control of the door and the work convenience, and to prevent the electric shock of the worker due to the contact with the switchboard, thereby improving the stability.

Further, by automatically detecting the state of the distribution line and wirelessly transmitting the detected information, the function of the intelligent switchboard automation control system can be improved. In addition, the state of the distribution line is automatically detected before power-on, and the detected information is transmitted through the wireless recognition system, thereby contributing to the realization of the intelligent switchboard in the ubiquitous environment or the smart grid environment.

FIG. 1A is a schematic block diagram for explaining a ubiquitous switchboard (hereinafter referred to as an intelligent switchboard) having a remote control door according to an embodiment of the present invention.
1B is a front view for explaining an example of the intelligent switchboard of FIG. 1A.
2 is a diagram for explaining the operation principle of the signal relay unit of the intelligent switchboard of FIG.
3 is a cross-sectional view for explaining an example of the signal relay unit of FIG.
FIG. 4 is a block diagram for explaining an example of a wireless recognition tag in FIG. 1A. FIG.
5A is a schematic block diagram illustrating an intelligent switchboard according to another embodiment of the present invention.
5B is a front view for explaining an example of the intelligent switchboard of FIG. 5A.
6A is a schematic block diagram for explaining an intelligent switchboard according to another embodiment of the present invention.
Fig. 6B is a front view for explaining an example of the intelligent switchboard of Fig. 6A.
Hereinafter, an embodiment having an expanded function in connection with the present invention will be described.
7 is a cross-sectional view for explaining an expanded example of the signal relay unit.
FIG. 8 is an exemplary view showing the operation state of FIG. 7. FIG.
Fig. 9 is an exemplary diagram showing an operation principle causing an operation. Fig.

1A, an intelligent switchboard 100 includes an enclosure 110 having at least one door 120, a driving unit 130, a wireless recognition tag 140, and a signal relay unit 160. The door 120 is opened and closed by the operation of the driving unit 130. The intelligent switchboard 100 according to the present embodiment is configured so that one or more doors 120 can be remotely controlled to be opened or closed individually or simultaneously.

In one embodiment, as shown in FIG. 1B, the intelligent switchboard 100 includes one or more doors 120. In this embodiment, when the switchboard 100 is viewed from the front, the two doors 120 located at the center and the right are closed, and one door 120 located at the left is opened.

The first door 120 is coupled to the enclosure 110 to open and close the opening of the enclosure 110 where the mechanical devices are disposed in the internal space. A locking device 125 is coupled to one side of the first door 120. One end of the locking device 125 is coupled to the key assembly 121 of the first door 120 and the other end is coupled to the driving part 130. In this embodiment, the driving unit 130 is attached to the inside of the enclosure 110.

The locking device 125 includes a first shaft reciprocating in a horizontal direction by a physical force such as a rotational motion or a linear reciprocating motion of the driving unit 130 and a second shaft reciprocating in a vertical direction by the movement of the first shaft. . In this case, one end of the first shaft is coupled to the driving unit 130, and one end of the second shaft is coupled to the key assembly 121 of the door 120. The reciprocating motion of the second shaft rotates the key assembly 121 such that the key assembly 121 can be engaged in the closed position in the enclosure 110 or separated in an open state.

According to the above-described structure, when a predetermined physical or mechanical force is applied to the first door 120 from the driving unit 130 through the locking device 125, the key assembly (not shown) coupled to one end of the locking device 125 The key assembly 121 can be switched to the closed state when the first door 120 is opened or the first door 120 is closed while the first door 120 is opened.

The intelligent switchboard 100 according to the present embodiment performs wireless recognition communication between a tag located inside the switchboard 100 and a reader located outside the switchboard 100 despite the fact that the metallic enclosure 110 intercepts the wireless recognition communication .

Referring again to FIG. 1B, the intelligent switchboard 100 includes a wireless recognition tag 140 connected to the driver 130. In this embodiment, the wireless recognition tag 140 outputs the pre-stored information by the command of the reader and outputs a signal for controlling the door (e.g., a door control signal) to the driving unit 130 . The wireless recognition tag 140 may be connected to the driver 130 via a coaxial cable 150.

In this embodiment, the RFID tag 140 is located inside the switchboard 100, so that the communication with the reader can be interrupted by the metallic enclosure 110. [ The intelligent switchboard 100 according to the present embodiment includes a signal relay unit 160 extending through the door 120 or a part of the enclosure 110 and extending between the door 120 and the exterior and interior of the enclosure, Respectively. The signal relay unit 160 may include a relay antenna installed to extend the communication distance between the RFID tag 140 and the reader.

2 is a diagram for explaining the operation principle of the signal relay unit of the intelligent switchboard of FIG.

Referring to FIG. 2, the signal relay unit 160 includes a first antenna 162, a second antenna 164, and a wire 166. The signal relaying unit 160 is disposed through the distribution box so that the wireless recognition tag disposed inside the switchboard and the wireless recognition reader located outside the switchboard are electromagnetic inductively coupled to each other without being disturbed by the communication by the metallic enclosure.

In more detail, in one embodiment, the first antenna 162 and the second antenna 164 are each configured to form a self-loop antenna. The first and second antennas 162 and 164 are connected to each other by a wiring 166. The wiring 166 is provided such that each loop antenna of the first and second antennas 162 and 164 forms one large closed loop. The first antenna 162 of the signal relay unit 160 is disposed inside the cabinet for transmitting and receiving signals to and from the wireless recognition tag and the second antenna 164 is disposed outside the cabinet for transmitting and receiving signals to and from the wireless recognition reader . The first antenna 162 may be located adjacent to the wireless recognition tag due to the limitation of the communication distance.

The specific configuration such as the shape and dimensions of each part of the signal relay unit 100 and the number of loops of the antenna are set in consideration of resonance frequency, impedance matching, coupling, and the like. The signal relay unit 160 may include a configuration in which a conductive pattern is patterned by printing or etching on a base substrate such as a printed circuit board, a plastic substrate, a flexible sheet, an insulating film, or the like.

An operation process of the signal relay unit 160 for relaying communication between a wireless recognition tag (hereinafter, simply referred to as a tag) 140 and a wireless recognition reader (hereinafter simply referred to as reader) 200 will be briefly described as follows . In the description of the present embodiment, the wireless recognition tag 140 has an apparatus main body 145 and an antenna 148 connected to the apparatus main body 145. The reader 200 includes a reader it is assumed that it has an apparatus main body 202 performing a reader function and / or a writer function, and an antenna 204 connected to the apparatus main body 202.

When a signal is transmitted from the reader 200 to the tag 140 side, the signal of the reader 200 is blocked by the enclosure and can not be directly transmitted to the tag 140. However, an induced current is generated in the second antenna 164 of the signal relay unit 160 by the electromagnetic induction action of the electromagnetic wave transmitted from the antenna 204 of the reader. The induced current is transmitted from the second antenna 164 to the first antenna 162 via the wiring 166. The induced current is transmitted from the first antenna 162 to the electromagnetic wave, And is received by the control unit through the antenna of the tag 140 inside the power distribution box as a signal.

Similarly, when a signal is sent from the tag 140 to the reader side, the signal of the tag 140 is blocked by the enclosure and can not be directly transmitted to the reader. However, an induced current is generated in the first antenna 162 of the signal relay unit 160 by an electromagnetic induction action of the electromagnetic wave transmitted from the tag antenna (see 158 in FIG. 4). The induced current is transmitted from the first antenna 162 to the second antenna 164 via the wiring 166. The transmitted induced current is converted into an electromagnetic wave by the second antenna 164, Signal to the reader outside the switchboard.

As described above, according to this embodiment, a substantially direct communication channel can be formed between the tag 140 and the reader through the signal relay unit 160 provided to connect the inside and the outside of the metallic enclosure of the switchboard.

3 is a partial cross-sectional view of a more specific example of the signal relay unit of FIG.

Referring to FIG. 3, the signal relay unit 160a according to the present embodiment includes a first antenna 162a, a second antenna 164a, a coaxial cable 166a, and a coupling element j. The engaging element (j) may be an embodiment of the fastener (168).

The first antenna 162a includes a helical wire forming a loop antenna. Both ends of the wire forming the first antenna 162a are connected to the first connector 161. [ The second antenna 164a has a helical wire forming a loop antenna. Both ends of the wire forming the second antenna 164a are connected to the second connector 163.

The loop antennas of the first and second antennas 162a and 164a form one closed loop by the coaxial cable 166a. The coaxial cable 166a may correspond to the wiring 166 described in Fig.

The coaxial cable 166a passes through a portion of the switchboard, e.g., a predetermined portion of the door, and is fixedly coupled to the door by a fixture 188. [ The coaxial cable 166a is disposed at the center of the fixture 188 and has a connector (not shown) coupled to the first connector 161 of the first antenna 162a and a connector And another connector (not shown) coupled to the second connector 163 may be provided, respectively.

In one embodiment, the fixture 168 is paired with a first fixture located on the inside of the switchboard and a second fixture located on the outside of the switchboard, and is fixedly coupled to both sides of the enclosure or door. The first fastener may have a bolt shape and the second fastener may have a nut shape.

FIG. 4 is a schematic block diagram of an example of a wireless recognition tag of FIG. 1A.

4, the RFID tag 140 according to the present embodiment includes a storage unit 142, a control unit 144, an output unit 146, and an antenna 148. [

The storage unit 142 stores information about the switchboard or the door. The storage unit 142 may be implemented as a semiconductor memory in the form of a microchip.

The control unit 144 is connected to the storage unit 142 and communicates with an external device (reader) located outside the switchboard and controls the output of information stored in the storage unit 142. The control unit 144 is a circuit unit that performs predetermined processing such as communication processing, memory access, power conversion processing, and the like, and performs calculations necessary for reading out received signals, user authentication, data recording, and operation. In addition, the control unit 144 controls the output unit 146 to output a voltage or current signal of a predetermined pattern and a predetermined level according to a command from the reader. The control unit 144 may be implemented as a single integrated circuit chip 145a together with the storage unit 142 and / or the output unit 146. [ The integrated circuit chip 145a of the wireless recognition tag 140 may correspond to the device body 145 of FIG.

The output unit 146 outputs a door control signal in response to a command from the reader. The output unit 146 may include a digital-to-analog converter for converting the digital signal of the controller 144 into an analog signal. The output unit 146 may further include an amplifier unit for amplifying the output of the digital-to-analog converter. The door control signal output from the output unit 146 is used to activate the driver for opening and closing the door. At this time, the driving unit may be driven by a toggle method or a forward / backward method so as to open or close the door by a door control signal.

The antenna 148 is connected to the control unit 144 and receives a signal from the reader via the relay unit and sends the signal from the control unit 144 to the reader.

Meanwhile, the antenna 148 of the radio frequency identification tag 140 may be installed to electromagnetic induction coupling with an antenna (not shown) in the driving unit. In this case, the driving unit may be implemented with a control unit for controlling the operation switch or the power switch on / off or forward / backward according to the signal received by the antenna itself. Here, the driving unit may include a motor operating by itself or an external power source. In another aspect, the wireless recognition tag 140 and the driver may be implemented such that the output of the digital-to-analog converter of the wireless recognition tag 140 is applied to a contact that induces activation or operation of the power switch of the driver. In this case, it is preferable that the wireless recognition tag 140 is integrally coupled to the driving unit.

5A is a schematic block diagram of an intelligent switchboard according to another embodiment of the present invention. Fig. 5B is a partial front view for explaining an example of the intelligent switchboard of Fig. 5A. Fig.

Referring to FIG. 5A, the intelligent switchboard 100a includes an enclosure 110a having one or more doors 120a, a driver 130a, and a wireless recognition tag 140a. The door 120a is opened and closed by the operation of the driving unit 130a. The intelligent switchboard 100a according to the present embodiment can remotely control one or more doors 120a by the driving unit 130a provided on the outer side of the door 120a and the wireless recognition tag 140a provided on the outer side of the door 120a One or more doors 120a of the switchboard 100a can be opened or closed individually or simultaneously.

In one embodiment, as shown in FIG. 5B, the intelligent switchboard 100a has at least three doors 120a. When the switchboard 100a is viewed from the front, the three doors 120a are closed. When the central closed door 120a is referred to as a second door, a wireless recognition tag 140a is attached to the outer upper end of the second door 120a. The driving unit (see 130 in FIG. 1B) is provided inside the second door 120a or inside the switchboard 100a.

The wireless recognition tag 140a may have substantially the same configuration as the wireless recognition tag 140 shown in FIG. The door control signal output from the wireless recognition tag 140a is transmitted to the driving unit via a wire, for example, a coaxial cable 150a, which connects the wireless recognition tag 140a and the driving unit. The coaxial cable 150a extends from the outside of the switchboard 100a to the inside via the through hole of the second door 120a.

According to the configuration of the above-described switchboard, the wireless identification tag 140a provided outside the switchboard 100a, the coaxial cable 150a for transmitting the door control signal of the wireless identification tag 140a to the drive unit in the switchboard 100a, The door of the switchboard can be remotely controlled by the coupling structure of the driving unit that operates the locking device coupled to the key assembly (not shown) of the door 120a. That is, according to the present embodiment, at least one door or all doors of the switchboard can be remotely controlled in the closed or open mode by using the wireless recognition reader located outside the switchboard.

Referring to FIG. 6A, the intelligent switchboard 100b includes an enclosure 110b having one or more doors 120b, a driver 130b, and a wireless recognition tag 140b. The door 120b is opened and closed by the operation of the driving unit 130b. The intelligent switchboard 100b according to the present embodiment is configured such that the door 120b of the switchboard 100b is controlled by remote control of one or more doors 120b by the drive unit 130a and the wireless identification tag 140a provided outside the door 120b. ) Can be opened or closed individually or simultaneously.

In one embodiment, as shown in FIG. 6B, the intelligent switchboard 100b has at least three doors 120b. When the switchboard 100b is viewed from the front, the three doors 120b are closed. When the central closed door 120b is referred to as a third door, a driving part 130b and a wireless recognition tag 140b are installed at the upper end of the outer side of the third door 120b.

The wireless recognition tag 140b may have the configuration shown in FIG. The door control signal output from the wireless recognition tag 140b is transmitted to the driving unit 130b via a wire, for example, a coaxial cable 150b, which connects the wireless recognition tag 140b and the driving unit.

According to the configuration of the above-described switchboard, the drive unit 130b provided outside the switchboard 100b and the drive unit 140b operating the lock device coupled to the key assembly (not shown) of the door 120b And a wireless recognition tag 140b for supplying a door control signal to the driving unit 130b.

The door 120 of the intelligent switchboard 100 may be remotely controlled to open or close the door 120 of the intelligent switchboard 100 in order to perform an operation such as checking the results of meter reading of various instruments in the intelligent switchboard 100, Another example of a reinforced form is provided for convenience when closing.

The operator is allowed to remotely control the door 120 to open the door 120. When the intelligent switchboard 100 to be managed is provided in a large number, It is easy to immediately find the door 120 of the intelligent switchboard 100 that matches the intelligent switchboard 100 that sent the door control signal among the numerous intelligent switchboards 100 in the field Sometimes I will not. In particular, if a manager changes or there are a lot of obstacles to work on the scene, you will have more difficulties than you think.

Conversely, it is a lot of effort, time, and inconvenience to check the locked state of the door 120 of the plurality of intelligent switchboards 100 when withdrawing from the work site after completion of the work, A means and a method for confirming the locked state of the door 120 at a glance are required.

In addition, when many operations on the field are concentrated, it is possible to forget which door 120 of the intelligent switchboard is locked, which door 120 is not locked, and whether or not the door 120 is opened or closed for each door 120 .

In this connection, it is necessary to check whether the door 120 of the intelligent switchboard 120 is locked (opened or closed). In this regard, although a method through construction of an electrical signal is possible, since there is a possibility of occurrence of an error, an operation of a functional section, etc. in the process of performing an electrical signal process, A mechanical and physical method in which the door 120 is inevitably operated naturally according to the opening and closing of the door 120 is provided.

1B, the locking device 125 of the intelligent switchboard 100 includes a reciprocating shaft 126 that reciprocates (moves and operates) by a physical force such as a rotational motion or a linear reciprocating motion of the driving unit 130 ≪ / RTI > The reciprocating shaft 126 includes a first shaft 126a moving in the horizontal direction and a second shaft 126b moving in the vertical direction by the movement of the first shaft 126a. The reciprocating shaft 126 has a motion element 126c. In Fig. 9, the reciprocating motion a0 of the reciprocating shaft 126 is configured to physically (mechanically) affect other added components.

In the example of FIG. 9A, the body of the first shaft 126a is provided with the motion element 126c. Here, the motion element 126c is provided in such a manner that a reciprocating shaft cam 126c1 having a sloped slope is formed above the body of the first shaft 126a. Next, the reciprocating shaft cam 126c1 is provided with an actuator 127 having a standing vertical bar-shaped body 127a with its lower end 127c abutting against and having a slip flat plate 127b at its upper end. Accordingly, when the reciprocating axis cam 126c1 is horizontally moved (a01) together with the first axis 126a, it is inevitable to push the operator 127 in contact with the inclined surface of the reciprocating axis cam 126c1 upward, And causes the vertical movement a1 of the operator 127 to be vertically moved. At this time, a configuration may be added to the lower end of the operator 127 to include a rotation shaft and a roller 127c1 to reduce friction with the reciprocating shaft cam 126c1 so as to ensure smooth operation, and to axially couple the roller to the rotation shaft .

In the present invention, the attachment (or bonding) is performed by a method such as adhesion, welding, flange bonding, binding through a bracket, screw / bolt tightening, and the like.

The example of FIG. 9B is a case where the motion axes 126c are provided on the second axis 126b. In this case, the second axis 126b can be surely confirmed whether the second axis 126b is actuated. The reciprocating motion a02 (a02) of the second axis 126b is a function of the key assembly 121, So that the key assembly 121 reliably releases the locking and unlocking states of the door 120 since the key assembly 121 is coupled to the enclosure 110 in a closed state or separated in an opened state.

To this end, in FIG. 9B, the kinematic element 126c is provided with a horizontal rod-shaped axial extension rod 126c2, which is arranged such that one end is horizontally extended (or attached) from the body of the second shaft 126b . Next, the other end of the shaft extension rod 126c2 is provided with an actuator 127 extending substantially vertically. Here, the operator 127 has a slip plate 127b at the upper end of the vertical bar-shaped body 127a, and the lower end thereof is fixed to the upper end of the axis-extending rod 126c2. With this configuration, the shaft extension rod 126c2 moves upward and downward along with the vertical movement of the second shaft 126b. At this time, the operator 127 provided at the other end of the axis extending bar 126c2 necessarily performs a vertical movement in the same manner.

Next, with reference to Figs. 7 and 8, it will be seen how the vertical up and down motion of the operator 127 will represent the opening and closing states of the door 120, with respect to the additional configuration.

In FIG. 7, a slip plate 127b is provided at the upper end of the actuator 127, the bottom surface of which is fixed. A cable vertical extending element 167 having a body 167a which takes the form of a vertical bar standing downwardly is formed at one end of a coaxial cable 150 located inside the enclosure 110 and connected to the first antenna 162a Respectively. That is, the upper end of the cable vertical extending element 167 is fixed to one end of the coaxial cable 150. Here, the coaxial cable 150 should be constructed so as to be stacked on a hard skin such as a metal pipe so that the waist of the body is not bent, and has a rotation axis element 170 such as a seesaw or lever at the center of its body . The cable vertical extending element 167 is disposed such that the lower end of the cable vertical extending element 167 contacts the upper surface of the slip plate 127b of the actuator 127. The upper surface of the slip plate 127b is made slippery so that the lower end of the cable vertical extending element 167 can be slid in the horizontal direction while pushing the lower end of the cable vertical extending element 167 in the vertical direction.

The cable vertical extending element 167 may have a mass body 167b which is made of a material such as lead having a large mass and serves as a weight. The mass body 167b functions as the weight of the actuator 127, So that the cable vertical extending element 167 moves downward simultaneously. At this time, the lower end of the mass body 167b serves as a lower end of the cable vertical extending element 167, and is slidably slidable in the horizontal direction of the slip flat plate 127b.

A tension spring sp whose one end is fixed to the body 167a of the cable vertical extending element 167 and whose other end is fixed to the door 120 can be provided with an initial tension by a method other than the mass body 167b have. Accordingly, when the operator 127 is moved downward, the cable vertical extending element 167 is pulled toward the door 120 by an elastic force of the tension spring sp. Here, either one of the tension spring sp and the mass body 167b may be selectively used, or they may be used together to complement each other to enhance the effect thereof.

There is provided a sphere spherical sphere shaft 171b having a hole (passageway) penetrating in relation to the rotation axis element 170 of the coaxial cable 150. [ In the example of FIG. 7, the coaxial cable 150 is interposed in the middle of its body through the hole of the sphere shaft 171b. The spear bearing 171a is provided with an inner periphery corresponding to the outer periphery of the spear shaft 171b and covers the outer periphery of the spear shaft 171b so that a seesaw (lever) As shown in FIG. Both ends (one end and the other end) of the coaxial cable 150, which is centered on the sphere shaft 171b after the outer periphery of the sphere shaft 171b is supported by the inner periphery of the sphere bearing 171a, (Lever) motion in the opposite direction to each other. For convenience of assembly, the spear bearing 171a may be manufactured in such a way that the spear bearing 171a is divided into two parts in a state of being cut in a cross section, and then the divided parts are attached to each other after interposing the spear shaft 171b. In addition, lubricating oil can be supplied to the contact surface between the spear shaft and the spear bearing so that the seesaw motion can be smoothly performed. As another embodiment of the coupling element j, a combination of the sphere bearing 171a bearing the sphere shaft 171b and the sphere shaft is provided.

Consequently, the coaxial cable 150 passes through a predetermined portion of the door 120 through the rotation axis element 170. That is, the coaxial cable is interposed in the middle of the sphere shaft 171b, the sphere shaft 171b is axially coupled to the sphere bearing 171a, and the sphere bearing 171a is engaged with the sphere of the door 120 And is fixed by being interposed in a through hole drilled in a predetermined portion. In this way, the coaxial cable 150 is coupled to the door 120 of the intelligent switchboard 100 by the method of axial coupling.

Optionally, a marking element 175 may be added, and the marking element 175 may be fixed to the other end of the coaxial cable 150 located outside the enclosure 110 and extend vertically or horizontally Shaped bar support base 175a and a mark 175b fixed to the end of the bar support base 175a. 7, there is illustrated a marking support 175a that extends down the end of the coaxial cable 150. As shown in FIG.

1B, Fig. 7 and Fig. 8, the operation state after the above-described configuration is provided will be described in more detail.

1B, the locking device 125 has a reciprocating shaft 126 which reciprocates in the horizontal direction by the driving unit 130. The reciprocating shaft 126 includes a first shaft 126a, a first shaft 126a, And a second shaft 126b reciprocating in the vertical direction by the movement of the second shaft 126b. 9, according to the reciprocating linear motion of the reciprocating shaft 126, the actuator 127 performs the vertical movement al. 8 illustrates a downward vertical movement in which the vertical movement a1 of the operator 127 moves downward. 8, the mass (body) of the lower end of the cable vertical extending element 167, which contacts the slip plate 127b at the upper end of the actuator 127 in the enclosure 110 according to the downward vertical movement a1, The coaxial cable 150 rotates about the sphere shaft 171b about the center axis of rotation by the weight of the tension spring 167b itself or by the pulling force of the tension spring sp given an initial tension, The cable vertical extending element 167 fixed to one end of the cable is moved downward (a2). At this time, since the first antenna 162a is also downward, it should be disposed in consideration of position and distance so as not to contact or interfere with the RFID tag 140. [

According to the above-described operation, the other end of the coaxial cable is upward (a3) as a seesaw (or lever) around the sphere shaft 171b, conversely, outside the enclosure 110. [ At the same time, the second antenna coupled to the other end of the coaxial cable 150 is upwardly moved (a3), and means for displaying information on whether or not the door 120 is locked . At this time, when the marking elements 175 are formed and operate upward together, information can be displayed more effectively on the outside. The marking of the marking element 175 may use a reflective marking. Particularly, when a reflection mark provided by 3M that changes the reflectance or the reflecting color depending on the viewing angle is applied, when the marking element 175 is moved upward or downward along the rotation of the coaxial cable, the reflectance or the reflecting color It is possible to more easily display the opening / closing / locking of the door 120 to the outside, so that information can be quickly and accurately grasped. In this way, the operator can easily find the unlocked door 120 before the work, or reliably grasp at a glance whether or not the door 120 is locked after the work, It is possible to prevent an accident occurring in the state beforehand.

100: Intelligent switchboard
120: Door
130:
140: Wireless recognition tag
160: Signal relay section

Claims (2)

An electric distribution board for distributing electric power,
A door coupled to the enclosure for opening and closing an opening of the enclosure; and a mechanical force for opening and closing the door, wherein the mechanical force A wireless recognition tag disposed inside the enclosure or door and connected to the driving unit and outputting a door control signal to the driving unit in response to an instruction from an external device; And a relay unit for relaying signal communication between the wireless recognition reader and the wireless recognition reader located outside the door,
The relay unit includes a coaxial cable passing through one side of the door, a first antenna coupled to one end of the coaxial cable, and a second antenna coupled to the other end of the coaxial cable from the outside of the enclosure, Wherein the antenna and the second antenna form one closed loop by the coaxial cable inside / outside the enclosure, the ubiquitous switchboard comprising:
Wherein the radio-
A storage unit for storing information on the switchboard or the door; A control unit communicating with an external device and controlling output of information stored in the storage unit; An output unit connected to the control unit and the driving unit and outputting a door control signal to the driving unit under the control of the control unit; And an antenna connected to the control unit,
Wherein the wireless identification tag has a patch shape and is attached to one side of the driving unit. Switchboard with smart door.

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