KR102232911B1 - Open-use switchgear that can be operated - Google Patents

Abstract

The present invention relates to a construction switch capable of remote open/close operation, the switch body 110 filled with insulating gas therein, a switch unit accommodated in the switch unit 110 to open and close, and are connected to both ends of the switch unit, respectively, and the switch unit The first and second bushings 110a and 110b installed in the main body so that a part thereof is exposed to the outside, the manual operation handle 111 connected by the operation arm and the rotating shaft 112 connected to the switch unit, and the switch main body 110 A geared motor 114 installed and fixed to the center of the rotation hinge 113, a control box 130 provided with a button for opening and closing the switch unit, and connected to the geared motor 114 by a control cable 131, and a rotation shaft ( 112) and a driving link 115 having both ends linked to one side of the rotation hinge 113.

Description

Construction switchgear that can be operated with remote opening and closing {Open-use switchgear that can be operated}

The present invention relates to a construction switch that can be operated remotely, and more particularly, a remote open/close operation capable of opening and closing a construction switchgear by operating a control box connected to the switch body and a control cable or a remote control unit capable of wireless communication. It relates to a construction switchgear.

In general, a construction switchgear is a device for bypassing a construction section so that power supply is not stopped even if the construction section of the overhead wire is blocked during replacement work for the overhead wire.

As shown in FIG. 1, the above-described construction switchgear connects both sides of the cut portion of the cut overhead electric wire through a cable to block the construction section, thereby switching the energization or blocking of the construction section. In other words, in the case of a three-phase overhead wire, the construction switch has three first bushings (1) to which cables connected to the three phases on the upstream side of the overhead wire are connected, and three to which cables connected to the three phases on the downstream side of the overhead wire are connected It is equipped with two second bushings (2).

In addition, a switch unit (not shown) is accommodated inside the switch for construction, so that the first bushing 1 and the second bushing 2 corresponding thereto are energized or cut off to the operation of the manual operation handle 3 connected to the switch unit. It is supposed to be converted by. Therefore, by connecting the bushings having the same phase to each other, it is possible to energize or block the construction section through a construction switchgear and a cable.

However, conventional construction switchgear is a driving operation type, and because the operator operates the manual operation handle mounted on the switch directly or using an insulating stick, there is a risk of exposure to accidents due to phase loss, inconsistency of phase, and insufficient cleanliness management of the bushing connection. .

In addition, in addition to the manual locking device, in the conventional construction switchgear, the pressure of the internal insulating gas is normal pressure (0.05 MPa), and the pressure of the gas repeats expansion and contraction due to the influence of the external temperature, etc. If a certain setting pressure (0.03∼0.001MPa) is reached due to insufficiency, and the opening and closing operation is performed while the internal insulating gas is lost, electrical equipment may be damaged and the safety of workers may be adversely affected.

In addition, if the manual locking device is released while the pressure of the insulating gas is lowered, open-opening is possible, so if it is input under the minimum guaranteed pressure, a line accident may occur due to flashover between the device circuit line, the ground, and the internal phase. There is a concern.

Public Utility Model No. 20-1999-0032653 (published on July 26, 1999) Publication Patent No. 10-2019-0010104 (published on January 30, 2019)

An object of the present invention for solving the problems of the prior art as described above is to provide a construction switch capable of remote open/close operation to safely open and close the switch during uninterrupted construction.

In addition, an object of the present invention is to provide a construction switch capable of remote open/close operation capable of preventing safety accidents and line accidents due to misoperation by visually checking the pressure of the insulating gas in the switch body during uninterrupted construction.

An object of the present invention as described above, the switch body is filled with an insulating gas therein; A switch unit accommodated and opened and closed in the inside of the switch body; First and second bushings respectively connected to both ends of the switch unit and installed on the switch body so that a part thereof is exposed to the outside; A manual operation handle connected by a rotation shaft to an operation arm interlocked with the switch unit; A geared motor installed on the upper part of the switch body and the rotation shaft fixed to the center of the rotation hinge 113; A control box provided with a button for opening and closing the switch unit and connected to the geared motor by a control cable; And a driving link in which both ends are linked to one side of the rotation shaft and the rotation hinge.

According to one aspect of the present invention, the drive link is characterized in that it is composed of a two-stage link.

According to another aspect of the present invention, the geared motor is coupled to the rotation shaft to pass through, and the rotation hinge is coupled to an end of the rotation shaft to a drive plate installed on the upper portion of the switch body; And a protective cover fixed to an upper portion of the switch body to protect a configuration including the geared motor and the driving plate.

According to another aspect of the present invention, a communication chip is embedded in the control box, and a remote control unit for wirelessly transmitting a wireless signal for opening and closing the switch unit is further provided in the communication chip of the control box, It characterized in that the opening and closing can be operated remotely.

According to another aspect of the present invention, a limit switch driven according to the operation of the manual operation handle is further provided, and a display signal for indicating an open/close state of the switch unit by the manual operation handle is generated. .

According to another aspect of the present invention, the driving link is attached to one side of the hinge touch plate; And a limit switch driven by the hinge touch plate in connection with the driving link, and generating a display signal for indicating an open/close state of the manual operation handle or the switch unit by the control. .

According to another aspect of the present invention, a manual lock handle for manually locking the manual operation handle; A lifting lock rod that is moved up and down by interlocking with the manual lock handle; And a handle stopper for mechanically locking the manual operation handle by rotating in association with the lifting of the lifting lock rod.

According to another aspect of the present invention, a manual lock limit switch interlocked with the handle stopper according to the operation of the manual lock handle is further provided, and the manual lock limit switch is operated by the handle stopper by the operation of the manual lock handle. When driving, it is characterized in that it transmits a lock signal to the control box and blocks the opening and closing of the switch unit.

According to another aspect of the present invention, a pressure sensor for sensing the pressure of the insulating gas filled in the switch body; And an actuator for locking the handle stopper by forcibly raising and lowering the lifting lock bar when the pressure of the insulating gas of the switch body detected by the pressure sensor is less than a predetermined pressure, and the switch body When the insulating gas pressure of is lowered below a predetermined pressure, even if the button of the control box is operated, opening and closing of the switch unit is blocked.

According to another aspect of the present invention, while surrounding the pressure sensor and the actuator, an outer case having an opening formed at one side coupled to the switch body; And an indicator interlocked with the actuator and exposed to the outside through the opening, so that it is possible to visually check when the pressure of the insulating gas in the switch body falls below a predetermined pressure.

According to another aspect of the present invention, the indicator is made of a plate, and a red sticker is attached or a red paint is painted to notify an abnormality in the insulating gas pressure of the switch body.

According to the present invention, by operating a control box connected to the switch body and a control cable or a remote controller capable of wireless communication with the control box, there is an effect that it is possible to safely open and close the switch during uninterrupted construction.

In addition, in the present invention, when the internal pressure of the insulating gas in the switch body decreases, an indicator that operates mechanically is installed to interlock, and a red sticker is attached to the indicator so that the pressure drop state can be visually confirmed, thereby insulating during uninterrupted construction. Since the sticker is automatically exposed to the outside only when the gas pressure is lowered, the operator can check it with the naked eye, so there is an effect of preventing safety accidents and line obstructions caused by misoperation in advance.

1 is a view of a conventional switch for construction.
2 and 3 are perspective views of a construction switch capable of remote opening and closing operation according to an embodiment of the present invention.
4 is an exploded perspective view of the construction switch of FIG. 2.
5 is a perspective view of the switch body of FIG. 2.
6 is a perspective view of the switch body of FIG. 2.
7 is an exploded perspective view of the control box of FIG. 2.
8 is a front view of the switch body of FIG. 2.
9 is an enlarged front view of a main part of the switch body of FIG. 8.
10 and 11 are views showing an operating state of the indicator.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to exemplary drawings.

2 and 3 are perspective views of a construction switch capable of remote open/close operation according to an embodiment of the present invention, FIG. 4 is an exploded perspective view of the construction switch of FIG. 2, and FIG. 5 is a perspective view of the switch body of FIG. 6 is a perspective view of the switch body of FIG. 2, FIG. 7 is an exploded perspective view of the control box of FIG. 2, FIG. 8 is a front view of the switch body of FIG. 2, and FIG. 9 is an enlarged front view of the main part of the switch body of FIG. 10 and 11 are views showing an operating state of the indicator.

According to Figures 2 to 11, a remote open/close operation is possible according to an embodiment of the present invention, the switch body 110 of a rectangular parallelepiped filled with insulating gas therein, is accommodated in the inside of the switch body 110 to open and close The first and second bushings 110a and 110b, which are electrically connected to each of the switch unit and both ends of the switch unit, and are installed to expose a part of the switch unit 110 to the outside, an operation arm and a rotation shaft 112 that are interlocked with the switch unit ) Connected by a manual operation handle 111, a geared motor 114 installed on the upper part of the switch body 110 and fixed to the center of the rotation hinge 113, and one or more buttons for opening and closing the switch unit, and a motor assembly That is, it is composed of a control box 130 connected to the geared motor 114 by a control cable 131 and a driving link 115 in which both ends are linked to one side of the rotation shaft 112 and the rotation hinge 113.

In the above embodiment, the control box 130 is a switch for on/off of the control box 130, one button for opening and closing of the switch unit, an indicator indicating the open/close state of the switch unit, a battery discharge indicator, and a charging jack. It is equipped with.

In the above embodiment, the drive link 115 for transmitting the power, that is, the rotational force of the geared motor 114 is configured as a two-stage link. In addition, power can be transmitted in various ways.

In the above embodiment, the geared motor 114 is coupled to one side so that the rotation shaft 112 penetrates, and the rotation hinge 113 is coupled to the end of the rotation shaft 112 to be installed on the upper portion of the switch body 110 The protective cover 119 fixed to the upper part of the switch body 110 is provided to protect the configuration including the geared motor 114 and the drive plate 118, and thus the upper part of the switch body 110 It is possible to protect configurations such as various lines including the geared motor 114 located at.

In another embodiment, a communication chip is embedded in the control box 130, and a remote control 132 for wirelessly transmitting a wireless signal for opening and closing the switch unit is provided in the communication chip of the control box 130, so that the opening and closing of the switch unit, that is, The opening and closing of the switch can be operated at a longer distance than when the box 130 is used, so that the safety of the operation can be improved.

In this case, unlike the control box 130, on the remote control 132, only a button for opening and closing the switch unit may be provided.

In the above embodiment, since the limit switch 117a driven according to the manipulation of the manual manipulation handle 111 is provided, a display signal for indicating an open/closed state of the switch part by the manual manipulation handle 111 may be generated. This display signal may indicate to the operator the operation state of the manual operation handle 111, that is, the open/close state of the switch unit, and at the same time, it may be utilized to control the switch or control box.

In the above embodiment, the hinge touch plate 116 on which the driving link 115 is attached to one side and the limit switch 117b driven by the hinge touch plate 116 in connection with the driving link 115 are provided. A display signal for indicating an open/closed state of the switch unit by the operation handle 111 or the control box 130 may be generated. This display signal can also be used to control an open/closer or a control box while displaying the operation state of the manual operation handle 111, that is, an open/closed state of the switch unit to the operator.

In the above embodiment, the manual lock handle 120 for manually locking the manual operation handle 111, the lifting lock rod 121 and the lifting lock rod 121 that are lifted up and down in connection with the manual lock handle 120 By providing a handle stopper 122 for mechanically locking the manual operation handle 111 by rotating in conjunction with the lifting and lowering of the manual operation handle 111, it is possible to block opening and closing of the switch unit by the operation of the manual operation handle 111.

In the above embodiment, the manual lock limit switch 123 interlocked with the handle stopper 122 according to the operation of the manual lock handle 120 is provided, so that the manual lock handle 120 is operated by the handle stopper 122. When the manual lock limit switch 123 is driven, it may transmit a lock signal to the control box 130 and block opening and closing of the switch unit.

Regardless of the manipulation of the manual operation handle 111, the control box 130, and the remote control unit 132, the switch unit located in the switch body 110 above is opened and closed only after the manual lock handle 120 is released.

In another embodiment, a pressure sensor 141 that senses the pressure of the insulating gas filled in the switch body 110 and the pressure of the insulating gas of the switch body 110 detected by the pressure sensor 141 is less than a predetermined pressure When detected as, the actuator 142 for locking the handle stopper 122 by forcibly lifting the lifting lock rod 121 is provided, so that the insulating gas pressure of the switch body 110 has fallen below a predetermined pressure. When the button of the control box 130 is operated, it is possible to block opening and closing of the switch unit.

In the above embodiment, the outer case 143 and the actuator 142 having an opening 143a formed on one side coupled to the switch body 110 while being wrapped to protect the pressure sensor 141 and the actuator 142 from the outside. ), the indicator 144 exposed to the outside through the opening 143a is provided, so that the operator can visually check when the pressure of the insulating gas in the switch body 110 falls below a predetermined pressure.

In the above embodiment, the indicator 144 is made of a plate material, and a red sticker is attached or red paint is painted in order to notify an abnormality in the insulating gas pressure of the switch body 110, so that the operator can use the insulating gas in the switch body 110. Pressure abnormalities can be easily recognized.

Although the specific embodiments according to the present invention have been described so far, various modifications can be made without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited to the described embodiments and should not be defined by the claims to be described later, as well as by the claims and their equivalents.

110: switch body 110a, 110b: first, second bushing
111: manual operation handle 112: rotary shaft
113: rotation hinge 114: geared motor
115: drive link 116: hinge touch plate
117a, 117b: limit switch 118: drive plate
119: protective cover 120: manual lock handle
121: lifting lock rod 122: handle stopper
123: manual lock limit switch 130: control box
131: control cable 132: remote control
141: pressure sensor 142: actuator
143: outer case 143a: opening
144: indicator

Claims (10)

A switch body 110 filled with an insulating gas therein;
A switch unit accommodated in the inside of the switch body 110 to open and close;
First and second bushings (110a) (110b) connected to both ends of the switch unit and installed on the switch body 110 to expose a portion of the first and second bushings to the outside;
A manual operation handle 111 connected by an operation arm and a rotation shaft 112 interlocked with the switch unit;
A geared motor 114 installed on the switch body 110 and having the rotation shaft fixed to the center of the rotation hinge 113;
A control box 130 provided with a button for opening and closing the switch unit and connected to the geared motor 114 by a control cable 131;
A driving link 115 having both ends linked to one side of the rotation shaft 112 and the rotation hinge 113;
A manual lock handle 120 for manually locking the manual operation handle 111;
An elevating lock rod 121 that is moved up and down by interlocking with the manual lock handle 120; And
Consisting of a handle stopper 122 for mechanically locking the manual operation handle 111 by rotating in conjunction with the lifting of the lifting lock rod 121,
Manual lock limit switch 123 linked to the handle stopper 122 according to the manipulation of the manual lock handle 120
Is further provided, when the manual lock limit switch 123 is driven by the handle stopper 122 by the manipulation of the manual lock handle 120, transmits a lock signal to the control box 130, and the switch unit Construction switchgear capable of remote opening and closing operation, characterized in that blocking the opening and closing.
The method of claim 1,
The drive link 115 is a construction switch capable of remote opening and closing operation, characterized in that consisting of a two-stage link.
The method of claim 1,
The geared motor 114 is coupled to the rotation shaft through one side, and the rotation hinge 113 is coupled to the end of the rotation shaft, the driving plate 118 installed on the upper portion of the switch body 110; And
A protective cover 119 fixed to an upper portion of the switch body 110 to protect the configuration including the geared motor 114 and the drive plate 118
Construction switchgear capable of remote opening and closing operation, characterized in that further provided.
The method of claim 1,
A communication chip is built into the control box 130,
A remote control 132 that wirelessly transmits a wireless signal for opening/closing the switch unit to the communication chip of the control box 130
This is further provided, the opening and closing of the switch unit, that is, a remote open/close operation capable of operating a construction switch, characterized in that the opening and closing of the switch can be operated remotely.
The method of claim 1,
Limit switch (117a) driven according to the operation of the manual operation handle (111)
Is further provided, and generates a display signal for indicating an open/close state of the switch unit by the manual operation handle 111.
The method of claim 1,
A hinge touch plate 116 to which the driving link 115 is attached to one surface; And
A limit switch 117b driven by the hinge touch plate 116 in connection with the driving link 115
Is further provided, and generating a display signal for indicating an open/close state of the switch unit by the manual operation handle 111 or the control box 130.
delete The method of claim 1,
A pressure sensor 141 for sensing the pressure of the insulating gas filled in the switch body 110; And
When the pressure of the insulating gas of the switch body 110 detected by the pressure sensor 141 is detected below a predetermined pressure, the lifting lock rod 121 is forcibly lifted to lock the handle stopper 122 Actuator (142)
Is further provided, and when the insulating gas pressure of the switch body 110 falls below a predetermined pressure, even if the button of the control box 130 is operated, remote opening/closing, characterized in that it blocks the opening and closing of the switch unit Construction switchgear that can be operated.
The method of claim 8,
An outer case 143 having an opening 143a formed at one side coupled to the switch body 110 while surrounding the pressure sensor 141 and the actuator 142; And
Indicator 144 exposed to the outside through the opening 143a in connection with the actuator 142
Is further provided, remote open/close operation possible construction switchgear, characterized in that when the insulating gas pressure in the switch body 110 falls below a predetermined pressure, it can be visually confirmed.
The method of claim 9,
The indicator 144 is made of a plate, and a red sticker is attached or a red paint is painted in order to notify an abnormality in the insulating gas pressure of the switch body 110.

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