KR101912231B1 - Smart electronic teaching desk - Google Patents

Abstract

The present invention relates to a smart electronic teaching desk capable of preventing unnecessary power consumption. According to the present invention, the disclosed smart teaching desk has various types of multimedia devices installed therein and includes: a body (110) in which a teaching desk power switch (126) is installed on a top plate (120) to turn on/off power of the multimedia device and a connection line organization space (114) is provided to organize and receive a connection line (C2) and an external power line (C1) of the multimedia device; a multi-tap (150) rotatably installed in the connection line organization space (114) to be rotated such that the multimedia device is connected to the multi-tap (150) for power application; and a main controller (142) to shut off external power when it is determined that used power is less than a reference value, as normal power applied to some outlets of the multi-tap (150) is not shut off when the teaching desk power switch (126) is turned off and a power use state is detected.

Description

SMART ELECTRONIC TEACHING DESK

The present invention relates to a smart electronic teaching apparatus having multiple functions and preventing unnecessary energy consumption.

Typically, a lecture is a table in which a teacher or lecturer places a book or a document when teaching a student in a school, a school, or an enterprise.

In recent years, electronic teaching machines equipped with a variety of educational equipment such as a display device, a computer, and a projection have appeared due to the development of various educational equipments, unlike the conventional ones in which only books and materials are simply placed.

Here, the electronic lecture system selectively configures a storage device, a display, a keyboard, a mouse, a microphone, a speaker, and the like, which store lecture information. The electronic desk constructed as described above is configured to output the information of the corresponding lecture to the display in response to a keyboard and a mouse operation and to amplify the sound (voice) input by the microphone through a speaker and output it, have.

Such a technique related to electronic teaching has been proposed in Korean Patent No. 1711916.

Patent Document 1 uses a gooseneck microphone rotated by a driving force. However, since it is impossible to use a wireless device, the use of a microphone is difficult when the user moves outside a lecture room, and a function is limited. There is a problem.

In addition, when the existing electronic teaching desk is turned on / off collectively, the beam project should be terminated after the heat is sufficiently cooled. If it is neglected, the lamp breakage causes high repair cost, If the power is interrupted without doing so, the internal hardware is damaged. In order to prevent this, there is a problem that the power supply of the electronic desk is turned off, but the beam project and the power of the computer are turned on to waste unnecessary electric power.

Furthermore, since the power of the electronic desk is supplied by the internal amplifier in the wired manner, the use of the microphone is limited only in front of the lecturer, and the space for arranging the connection line or the external power line inside the electronic equipment is omitted, There is a problem that the beauty is not beautiful.

Korea Patent No. 1711916 (Registered on Feb. 21, 2014)

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and it is an object of the present invention to provide a wireless microphone device which can be charged and stowed, has a connection line organizing space for arranging a connection line of an multimedia device and an external power line If the power consumption of the outlet of the safety equipment is less than the reference value, the power is cut off and the unnecessary energy The object of the present invention is to provide a smart electronic desk which minimizes waste.

In order to achieve the above object, in a smart electronic desk according to the present invention, in an electronic desk equipped with a plurality of multimedia devices, a desk power switch 126 for turning on / off the power to the multimedia device at all times is provided on the top panel 120 A main body 110 having a connection line cleaning space 114 in which a connection line C2 and an external power line C1 of the multimedia device are arranged and stored; A multi-tap 150 rotatably installed in the connection line organizing space 114 and connected to the multimedia device for power supply; And the main power to be applied to some of the outlets of the multi-tap 150 is not blocked when the teaching power switch 126 is turned OFF, and when the power use is judged to be less than the reference value, A controller 142, and the like.

At this time, the multi-tap 150 includes a general equipment receptacle 152a interlocked with the ON / OFF operation of the desk power switch 126; And a safety equipment receptacle 152b interlocked when the teaching power switch 126 is turned on and turned on and off by the main controller 142 during an OFF operation, When the teaching power switch 126 is turned off, the current power consumption of the safety equipment receptacle 152b of the multi-tap 150 is sensed. If it is determined that power exceeding the reference value is being used, The multimedia device may be terminated and the main switch 154 of the multi-tap 150 may be turned off if the power consumption of the safety device receptacle 152b is less than the reference value.

The wireless microphone device 130 may be mounted on the upper plate 120 and may be mounted on the upper plate 120 so that the upper surface of the upper plate 120 A cradle 133 in which a charging circuit is installed so that power can be supplied through the control; A connecting rod 132 connected to the cradle 133 so as to bend and flow; A binding unit 132a provided at an end of the connecting unit 132 and having a terminal for interlocking with the charging circuit; And a microphone 131 coupled to the binding machine 132a and fixed and charged.

The height adjusting member 170 may further include a height adjusting member 170 for adjusting the height of the main body 110 from a bottom portion 112 provided at a lower end of the main body 110, A motor 172 fixed on the housing 112; A spiral shaft 174 installed upright on the drive shaft of the motor 172; A nut 176 installed at a lower end of the main body 110 so as to ascend and descend according to the rotational direction of the spiral shaft 174 by being spirally engaged at two points of the spiral shaft 174; And a support plate 116 fixed to the inner surface of the main body 110 and fixed to the main body 110 by the lifting and lowering of the nut portion 176 so that the nut portion 176 is fixed.

Further, the main body 110 may be provided with a conduit line 180 in a height direction between the support plates 116 so that the external power line C1 passes therethrough.

The slack prevention part 190 is provided above the conduit line 180 to prevent the slack of the external power line C1 by fixing the external power line C1 passing through the conduit line 180 .

The deflection preventing part 190 may be connected to the end of the wire 192 so as to guide the entry direction of the external power line C1 into the inside of the conduit line 180.

The smart electronic teaching apparatus according to the present invention has the following effects.

First, the wireless microphone device can be mounted on the desk for charging and mounting, thereby providing convenience to the user.

Second, there is provided a connection line organizing space for arranging a connection line of multimedia devices and an external power line inside the smart electronic teaching desk, and an external power line and a connection line for applying power to various multimedia devices can be neatly and safely arranged.

Third, it prevents the equipment such as the beam project or the computer main body from being damaged due to abnormal termination.

Fourth, it is possible to adjust the height of smart electronic desk according to the user's physique, so that it is easy to use and minimizes the vibration when controlling the height, minimizing the vibration applied to the multimedia device.

Fifth, when the height of the smart electronic desk is controlled, the external power line is prevented from sagging due to the elasticity, and the external power line is smoothly flowed into the smart desk.

1 is a front view showing a smart electronic teaching apparatus of the present invention.
2 is a rear view showing the smart electronic teaching apparatus of the present invention.
3 is a side view showing the smart electronic teaching apparatus of the present invention.
4 is a schematic view showing a wireless microphone device installed in a smart electronic teaching desk of the present invention.
FIG. 5 is an enlarged view showing a state before and after rotation of a multi-tap installed in a connection line organizing space in a smart electronic desk of the present invention.
6 is a perspective view showing a state in which a main controller is mounted on a multi-tab in the smart electronic teaching desk of the present invention.
7 is an enlarged view showing a state in which a height adjusting member, a sag prevention unit, a lobby line, and a conduit line are installed in a smart electronic desk according to the present invention.
8 is a control block diagram of the smart electronic teaching apparatus of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention and the manner of achieving them will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. Is provided to fully convey the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

Unless defined otherwise, all terms (including technical and scientific terms) used herein may be used in a sense commonly understood by one of ordinary skill in the art to which this invention belongs. Also, commonly used predefined terms are not ideally or excessively interpreted unless explicitly defined otherwise.

The terminology used herein is for the purpose of illustrating embodiments and is not intended to be limiting of the present invention. In the present specification, the singular form includes plural forms unless otherwise specified in the specification. The terms " comprises "and / or" comprising "used in the specification do not exclude the presence or addition of one or more other elements in addition to the stated element.

Hereinafter, the smart electronic teaching apparatus of the present invention will be described with reference to the drawings.

1 to 8, a smart electronic teaching pendant 100 according to the present invention includes a main body 110 having a top plate 120 at the top and a bottom 112 at the bottom, A computer 140 and a main controller 142 installed at a lower portion of the upper plate 120, a multi-tap 150 rotatably installed in the connection line organizing space 114, A main body 110 for allowing the external power line C1 to pass through the main body 110 and the video mirroring / wireless amplifier 160 installed at a lower portion of the space 114, a height adjusting member 170 for adjusting the height of the main body 110, And a sag prevention unit 190 provided at an upper portion of the conduit line 180 to prevent deflection of the external power line C1 passing through the conduit line 180 .

The main body 110 is a skeleton of the smart electronic teaching desk 100 and is provided with an upper plate 120 at the upper end and a bottom portion 112 at the lower end supported by the ground.

At this time, the bottom part 112 is installed separately from the lower end of the main body 110 for raising and lowering the main body 110. On the bottom edge of the bottom part 112, wheels (not shown) may be installed to facilitate the movement of the smart electronic teaching machine 100.

As shown in FIG. 1, the main body 110 has a connection line organizing space 114 formed thereon. At this time, the connection line organizing space 114 may be formed in a state in which the front and back are opened or the rear side is closed.

The connection line organizing space 114 is connected to the multimedia device such as a monitor 122, a computer main body 140, a main controller 142, a beam project 144, an image mirroring / wireless amplifier 160, An external power line C1 for applying a power supply voltage, an Internet line, a connection line C2 of a multimedia device, and the like.

The upper panel 120 is provided with a monitor 122 on its top surface, an input device mount 124 on its front surface, a desk power switch 126 on a top surface adjacent to the monitor 122, 128 are provided.

At this time, the top plate 120 may be formed to have an inclined surface whose height is lowered from the reference right side to the left side of the upper surface for the convenience of the user.

The monitor 122 is preferably disposed in a depression formed so that its surface coincides with the upper surface of the top plate 120.

2, the monitor 122 is adjustable in angle by a height adjusting unit 123 to which a cylinder or the like is applied. To this end, the front and rear ends of the monitor 122 are hingedly coupled to the upper plate 120 and the rear end of the monitor 122 are connected to each other by the height adjusting unit 123, It is possible to raise or lower the rear end portion

The input device mounting base 124 is provided in a plate shape so as to be slidable on the front surface of the upper plate 120. In this way, when the input device mounting base 124 is taken out, an input device such as a keyboard or a mouse is placed thereon. The input device mounting base 124 may be inserted into the top plate 120 when not in use.

The desk power switch 126 is provided on the surface of the top plate 120 that does not interfere with the monitor 122 and turns on / off the power to the multimedia devices at all times by a user's artificial operation.

On the other hand, the main power switch 127 is connected to the main power switch 126 and the main switch 154 of the multi-tap 150, so that when the main power switch 126 and the main switch 154 are turned on / And selectively turns on / off the power supply unit 152a and the safety equipment power measurement unit 143, respectively.

The mounting base 128 is positioned at a lower portion of the upper plate 120, and a computer 140 and a main controller 142 are installed therein.

The wireless microphone device 130 is mounted on the upper plate 120 so as to be able to be mounted and recharged and includes a microphone 131, a connecting rod 132 and a holder 133 as shown in FIG.

The microphone 131 is operated by a wireless system and is connected to the binding machine 132a of the connecting block 132 so that the microphone 131 can be fixed and charged.

The connecting rod 132 is formed in the shape of a bar made of metal so as to allow artificial bending and flow. The connection unit 132 is provided at its upper end with a binding unit 132a having terminals for connection with the charging circuit of the holder 133 for fixing and charging the microphone 131. [

The holder 133 is fixed to the lower end of the connecting rod 132. That is, the holder 133 is formed with a groove on the upper surface of the upper plate 120, and it is inserted into the groove so as to be able to carry not only the portable device but also the holder, and the wireless microphone device 130 can be charged, .

That is, the holder 133 also serves as a charger. Therefore, a charging circuit is installed inside the holder 133, and a charging circuit is connected to the main controller 142 to receive power.

The computer 140 is installed inside a mounting table 128 which is a lower part of the top plate 120 and stores various kinds of training data while the monitor 122 and the input device are connected.

The multi-tab 150 is rotatably installed inside the connection line organizing space 114 of the main body 110 by hinging, so that the multimedia device is connected for power supply.

Furthermore, the multi-tap 150 is controlled by the main controller 142 to which the external power line C1 is connected.

Since the multi-tab 150 functions as an opening and closing door for opening and closing the entrance of the connection line organizing space 114, the external power line C1 located in the connection line organizing space 114 and the connection line C2 of the multimedia device, It can serve as an obscuration preventing it from escaping to the outside.

Here, the multi-tap 150 is a smart multi-tap including a general equipment outlet 152a, a safety equipment receptacle 152b and a main switch 154 as shown in FIGS. 5 and 6 by a main controller 142 It is possible to check the usage power of the multimedia device and to prevent unnecessary power consumption.

The general equipment outlet 152a corresponds to some outlets of the entirety. When the desk power switch 126 is turned on according to the ON / OFF operation of the desk power switch 126, the power is supplied. When the desk power switch 126 is turned off, do. Although the number of general equipment outlets 152a according to the present embodiment is three, the number of general equipment outlets 152a is not limited to three. The multimedia device connected to the general equipment receptacle 152a according to the present embodiment is a wireless amplifier 160, a microphone 131 and a monitor 122. However, the present invention is not limited thereto, Can be connected.

The safety equipment receptacle 152b corresponds to the receptacle other than the general equipment receptacle 152a and power is supplied when the teaching power switch 126 is turned on but the main controller 142 ON / OFF is controlled.

Here, the safety equipment receptacle 152b is provided to prevent abnormal termination of the computer 140 and the beam project 144, in which the computer 140 and the beam project 144 are connected by a connection line, respectively.

That is, if the power is interrupted without performing a normal termination, the computer 140 may damage the power portion and the storage device, resulting in a lot of damage. Also, the beam project requires a preparation process to be completed after the heat has cooled sufficiently. If the beam project is ignored, it is required to repair the lamp due to breakage of the lamp. Thus, the computer 140 and the beam project 144 are connected to the safety equipment receptacle 152b, thereby protecting the multimedia device.

The main switch 154 manages the power of the entire multi-tap 150 and prevents overload and short circuit of electric power.

The main controller 142 is installed in the mounting table 128 to allow the safety equipment outlet 152b to check the current power consumption of the safety equipment receptacle 152b through the safety equipment power measuring unit 143. When the power consumption of the safety equipment receptacle 152b exceeds a reference value (I.e., the ready state value), and when the safety equipment power measuring unit 143 detects the failure, the power supply is cut off.

At this time, the main controller 142 does not interrupt the normal power applied to the safety device receptacle 152b when the teaching power switch 126 is turned off, If it is determined that the power usage is less than the reference value, the external power supply is turned off to prevent unnecessary power wastage.

That is, when the teaching power switch 126 is turned on, the main controller 142 applies power to both the general equipment receptacle 152a and the safety equipment receptacle 152b of the multi- To be supplied. On the other hand, when the teaching power switch 126 is turned off, the general equipment outlet 152a of the multi-tap 150 is turned off as usual. On the other hand, the safety device receptacle 152b does not immediately turn off the power by the main controller 142, but checks whether the multimedia device is properly terminated, and cuts off the electricity.

The main controller 142 senses the current power consumption of the safety device receptacle 152b, and when it is determined that the power of the reference value is being used, the main controller 142 calls the end signal of the multimedia device to terminate the multimedia device. On the other hand, when the power consumption of the safety equipment receptacle 152b becomes less than the reference value, the main switch 154 of the multi-tap 150 is automatically turned off.

Furthermore, the main controller 142 can also control operations of the image mirroring / wireless amplifier 160 and the height adjusting member 170 and the like. To this end, when the user inputs his or her height in numerical values, the main controller 142 automatically operates the height adjustment member 170 by the height corresponding to the input value, or manually operates the height adjustment member 170 .

The safety equipment power measuring unit 143 senses the current power consumption of the safety equipment receptacle 152b and transmits the sensed value to the main controller 142 in real time.

The image mirroring / wireless amplifier 160 is installed at a lower portion of the connection line arrangement space 114 of the main body 110 so as to project images such as a computer 140 and a portable device (not shown) And outputs audio of the wireless microphone device 130 or the like.

The height adjustment member 170 is installed at a connection portion between the main body 110 and the bottom portion 112 so that the height of the main body 110 can be adjusted at the bottom portion 112. The height of the motor 172, And a nut portion 176.

The motor 172 is installed on the bottom portion 112 with the drive shaft in an upright position.

The spiral shaft 174 is installed upright on the drive shaft of the motor 172, and a spiral is formed along the outer peripheral surface.

The nut portion 176 is inserted into the center of the support plate 116 vertically spaced from the lower portion of the main body 110 and is screwed to the spiral shaft 174.

Here, the nut portion 176 is engaged with the spiral shaft 174 at two points to minimize the shaking of the main body 110 during the lifting and lowering of the main body 110.

When the motor 172 is driven in one direction by the control signal of the main controller 142, the nut portion 176 threaded on the spiral shaft 174 is rotated in the corresponding direction, Respectively.

It is preferable that the conduit passages 180 are installed upright on the inner side of the main body 110 so as to be connected to the inside of the main body 110 from the bottom portion 112 through the support plate 116.

That is, the conduit line 180 is a passage through which the external power line C1 connected to the multi-tap 150 inside the main body 110 passes.

7, the slack prevention part 190 is fixed to the inside walls of both sides of the main body 110, which is the upper side of the conduit line 180, and is connected to the external power line C1 passing through the conduit line 180, Thereby preventing sagging.

At this time, the slack prevention part 190 fixes the upper part of the external power line C1 which passes upwardly through the conduit line 180 so that the external power line C1 is not sagged in the ascending and descending of the main body 110 . On the other hand, the slack prevention part 190 may be a plate spring or the like.

On the other hand, a lobby line 192 is connected to the end of the slack prevention part 190. At this time, the lobby line 192 guides the entry direction of the external power line C1 so that the external power line C1 can be easily inserted into and passed through the inside of the conduit line 180.

This is because when the end of the lobby line 192 passing through the conduit line 180 is fixed to the external power line C1 and the lobby line 192 is pulled up, (180).

The power supply process of the smart electronic teaching apparatus 100 according to the present invention will be described with reference to FIG.

First, the desk user turns on the main switch 154 of the multi-tap 150 to prepare the general equipment outlet 152a and the safety equipment receptacle 152b in such a state that power can be supplied to the general equipment receptacle 152a and the safety equipment receptacle 152b, respectively.

Next, the lecturer user turns on the teaching power switch 126 provided on the upper panel 120 to turn on the monitor 122, the wireless microphone device 130, the main controller 142, The computer 140 and the beam project 144 connected to the ring / wireless amplifier 160 and the safety equipment receptacle 152b, respectively.

Next, the lecture user performs a lecture or class using a monitor 122, a microphone 131, a beam project 144, an image mirroring / wireless amplifier 160, and the like.

Next, when the lecture or class is finished, when the lecturer turns off the teaching power switch 126, the power of the general equipment receptacle 152a is cut off as usual. However, the safety device receptacle 152b does not immediately turn off the power by the main controller 142 but checks whether the multimedia device is properly terminated and then cuts off the electricity.

This is because the main controller 142 detects the current power consumption of the safety device receptacle 152b, and if it is determined that the power exceeding the reference value is being used, the main controller 142 calls the end signal of the multimedia device to terminate the multimedia device. If it is detected that the power consumption of the safety equipment receptacle 152b is lower than the reference value, the main switch 154 of the multi-tap 150 is automatically turned off.

Thus, the computer 140 and the beam project 144 connected to the safety equipment receptacle 152b prevent the abnormal termination because the power is not cut off when the desk power switch 126 is turned off.

In addition, as described above, the smart electronic teaching apparatus 100 of the present invention further provides various convenience and advantages as follows.

First, the microphone 131 is supported by a connecting rod 132 that flexibly moves in the direction of the user's face, so that it is easy to adjust the position of the microphone 131 to match the mouth position of the user. In particular, a binding unit 132a to which the microphone 131 is coupled for fixing and charging the microphone 131 is coupled to the upper end of the connection unit 132, and is connected to the cradle 133 equipped with the charging circuit, 131 is easy to mount and charge.

Since the external power supply line C1 of the multimedia device and the various connection lines C2 can be stored in the connection line organizing space 114 of the main body 110, the aesthetics are also beautiful while neatly and safely arranged.

Also, since the multi-tab 150 opens and closes the opening of the connection line organizing space 114, the external power line C1 wound around the connection line organizing space 114 and the connection line C2 of the multimedia device can not escape to the outside.

In addition, a conduit line 180 may be provided in the body 110 to allow the external power line C1 to pass easily through the conduit line 180.

The external power line C1 passing through the conduit line 180 is fixed to the deflection preventing portion 190 which is an elastic body so that the external power line C1 can be prevented from sagging when the main body 110 is stopped or lifted.

When the lower end of the lobby line 192 is connected to the slack prevention part 190 and the lower end of the lobby line 192 is fixed to the external power line C1 and the upper end is pulled up by holding the lobby line 192, C1 are easily introduced into the inside of the conduit furnace 180.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, You will understand. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive.

100: smart electronic desk 110: main body
112: bottom 114: connection line clearance space
116: support plate 120: top plate
122: Monitor 123: Height adjuster
124: input device mounting table 126: lecture power switch
128: Mounting base 130: Wireless microphone device
131: microphone 132: connecting rod
132a: a binding machine 133: a holder
140: computer 142: main controller
143: Safety equipment power measurement unit 144: Beam project
150: Multi-tap 152a: General equipment outlet
152b: Safety equipment outlet 154: Main switch
160: video mirroring / wireless amplifier 170: height adjusting member
172: motor 174: helical axis
176: Nut portion 180: By conduit
190: deflection preventing portion 192:
C1: External power line C2: Connector

Claims (7)

[0002] In an electronic teaching desk equipped with various multimedia devices,
A teaching power switch 126 for turning on / off the multimedia device at all times is installed on the top panel 120, and a connection line C2 and an external power line C1 of the multimedia device are arranged and accommodated therein, A main body 110 having a cleaning space 114 formed therein;
A multi-tap 150 rotatably installed in the connection line organizing space 114 and connected to the multimedia device for power supply; And
When the power supply is not cut off when the desk power switch 126 is turned off and the power is not used and it is determined that the power usage is less than the reference value, (142)
The multi-
A general equipment outlet 152a interlocked with the ON / OFF operation of the teaching power switch 126; And
And a safety equipment receptacle (152b) interlocked when the teaching power switch (126) is turned ON and the ON / OFF state is controlled by the main controller (142)
The main controller 142 senses the current power consumption of the safety device receptacle 152b of the multi-tap 150 when the teaching power switch 126 is turned off, and when it is determined that the power exceeding the reference value is being used, And the main switch 154 of the multi-tap 150 is turned off when the power consumption of the safety device receptacle 152b is less than the reference value.
delete The wireless microphone device (130) according to claim 1, further comprising a wireless microphone device (130) installed to be able to mount and charge the upper plate (120)
A holder 133 mounted on the upper plate 120 and equipped with a charging circuit for receiving power through the control of the main controller 142;
A connecting rod 132 connected to the cradle 133 so as to bend and flow;
A binding unit 132a provided at an end of the connecting unit 132 and having a terminal for interlocking with the charging circuit; And
And a microphone (131) bound and fixed to the binding machine (132a).
The method according to claim 1,
And a height adjusting member 170 for adjusting the height of the main body 110 from a bottom portion 112 provided at a lower end of the main body 110,
A motor 172 fixed on the bottom portion 112;
A spiral shaft 174 installed upright on the drive shaft of the motor 172;
A nut 176 installed at a lower end of the main body 110 so as to ascend and descend according to the rotational direction of the spiral shaft 174 by being spirally engaged at two points of the spiral shaft 174; And
And a support plate (116) fixed to an inner surface of the main body (110) so that the nut portions (176) are fixed to the main body (110) and interlocked by lifting and lowering the nut portion (176).
5. The method of claim 4,
Wherein the main body 110 is provided with a conduit pipe 180 in a height direction between the support plates 116 so as to allow the external power line C1 to pass therethrough.
6. The method of claim 5,
And a sag prevention unit 190 for preventing the sagging of the external power line C1 by fixing the external power line C1 passing through the conduit line 180 above the conduit line 180 Smart electronic desk.
The method according to claim 6,
Wherein the deflection preventing part (190) is connected to the lobby line (192) so as to guide the entry direction of the external power line (C1) into the inside of the conduit line (180).

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