KR200296862Y1 - Electric motor operating equipment of molded case cercuit breaker or earth leackage breaker - Google Patents

Abstract

The present invention relates to an electric operation device of an earth leakage circuit breaker and a circuit breaker, and the electric operation device of the present invention provides a power supply in a mechanical device capable of turning on or off (OFF) or resetting the circuit breaker. Or a blocking unit, a control unit for processing an input signal, a driving unit rotated forward by the command of the control unit, an operating unit operating a handle of the breaker by converting the rotational movement of the driving unit into a linear movement, and the position of the operating unit. And a limit sensor for detecting or operating the driving unit and receiving the components therein, and a housing having a selection switch installed at the front thereof so that the breaker can be operated in the field. It relates to an electric operation device of a circuit breaker, characterized in that it can be operated in the field.

Description

ELECTRIC MOTOR OPERATING EQUIPMENT OF MOLDED CASE CERCUIT BREAKER OR EARTH LEACKAGE BREAKER}

The present invention relates to an electric operation device of a circuit breaker capable of automatically operating a handle of an earth leakage breaker and a circuit breaker. Especially, the handle of the earth leakage breaker and a circuit breaker can be remotely controlled by an electric operation device to remotely control the input or interruption. In addition, the present invention relates to an electric operation device of a circuit breaker capable of operating or operating an electric operation device manually in the field to input or block an electric circuit breaker and a circuit breaker.

Generally, the earth leakage breaker and wiring breaker (hereinafter referred to as breaker) are used when the current applied to the load by over current or leakage current exceeds the rated current or the ground fault occurs. It is a device used for the purpose of preventing safety accidents such as electric shock and fire of the human body.

The circuit breaker is formed in such a way that the handle attached to the front of the circuit breaker can be opened or lowered by hand to open and close the door, and the handle of the circuit breaker is turned ON when an accident current due to an overcurrent or a ground fault occurs. It comes to TRIP (automatic cut off position) which is halfway between and OFF (cut off position), and it cuts off the current.In order to re-insert the handle, a person directly lowers the handle to the cut off position and resets it after the reset. Since the handle must be raised to the position, it is necessary to move up to the position where the breaker is installed after the breakdown recovery, thereby causing a waste of time and manpower.

In addition, the temporary load distribution panel used in construction sites where the secondary load capacity of the breaker is not designed to meet the breaker capacity and is often used in construction sites where the load is increased or decreased is often caused by the automatic tripping of the breaker due to the momentary overload of unknown cause. Because of this blockage, the construction work is delayed, which causes huge obstacles.In case of rainy weather, an instantaneous ground fault occurs during rainy weather.However, when the weather clears, the breaker works even if the ground fault is automatically recovered. The hassle of having to put the handle of the breaker to go directly to the frequently occurs.

The present invention has been made to solve the conventional problems as described above, the object of the present invention, by the remote control of the handle of the circuit breaker by a remote control by a wired or wireless control of the handle of the breaker by the remote control In addition, it is possible to move the breaker handle to the closing position or the breaking position by operating the electric control device in the field as well as separately installed at one side of the breaker so that the breaker can be easily applied to an existing breaker. It relates to a control device.

The above object of the present invention, the electric operation device of the present invention is a mechanical device capable of turning on or off (OFF) and reset (RESET) the breaker, the control unit for supplying or cutting off power and processing the input signal And a driving unit which is rotated forward by the command of the control unit, an operating unit which converts the rotational movement of the driving unit into a linear movement to operate the handle of the circuit breaker, and detects the position of the operating unit to operate or stop the driving unit. It includes a limit sensor and the housing in the interior, the front of the selection switch is installed to enable the breaker to operate the breaker in the field is characterized in that the breaker can be operated remotely or in the field Achieved by a motorized control device of the circuit breaker.

1 is a perspective view showing the electric operation device of the circuit breaker according to the present invention,

Figure 2 is a plan view schematically showing a state in which the electric operation device is coupled to the handle of the breaker according to the present invention,

Figure 3a is a perspective view showing a state in which the operating unit in contact with the limit sensor installed in the lower portion of the housing,

3B is a perspective view illustrating a state in which the operating unit is not in contact with any of the two limit sensors;

Figure 3c is a perspective view showing a state in which the operating unit in contact with the limit sensor installed on the upper portion of the housing,

4 is an internal circuit diagram of a control unit according to the present invention.

* Description of the symbols for the main parts of the drawings *

1: Electric operation unit 2: Housing

3: control unit 4: driving unit

5: operating part 6, 7: limit sensor

8: Terminal 21: Front

22: fixed plate 23: guide hole

24: Selection switch 25: Input button

26: Shutdown button (RESET) 41: Drive motor

42: reducer 51: rotating member

52: rotary lever 53: connecting member

54: connecting lever 55: operating lever

56: fixing member 57: touch bar

58: grip lever 59: coupling hole

60: handle coupling portion 100: breaker

101: Handle

Hereinafter, with reference to the accompanying drawings, the electric operation device of the circuit breaker according to the present invention that can be carried out specifically the object as follows. In particular, the electric control device according to an embodiment of the present invention is installed with a circuit breaker for opening and closing the current flowing in the street lamp facility, it may be connected to the central control center remotely by wire or wireless.

1 is a perspective view showing a power control device according to the present invention, Figure 2 is a plan view schematically showing a state in which the power control device is coupled to the handle of the breaker, the power control device 1 is a drive unit (4) The operation unit 5, the limit sensors 6 and 7, and the control unit 3 are accommodated in the housing 2 and installed at one side of the breaker 100.

The housing 2 is for storing and supporting all the components constituting the electric control device 1, and is formed in a box shape of a substantially rectangular parallelepiped and two spaces around a fixed plate 22 formed in the center in the vertical direction. It is separated into, one of the space is provided with a drive unit 4 and the control unit (3) consisting of a drive motor 41 and a reducer 42, the other space is the operating unit 5 and the limit sensor (6, 7) is installed, the front side 21 is formed with a selector switch 24 for switching the electric operation device 1 to remote operation or field operation, and the selection switch 24 is in the remote operation state Terminal unit (8) for grasping and controlling the state of the electric control device (1) in the central management center, and the input button 25 for controlling the electric control device (1) in the field in the field operation state And the blocking button 26 is connected to the controller 3. It is connected by the illustrated wire. In this case, the terminal 8 may be formed in the housing 2 to transmit an input / output signal, or may be used by connecting a separate connector (not shown) by an electric wire. In addition, the handle lever 58 of the operating part 5 is fixed to the handle 101 of the circuit breaker 100 on one side of the housing 2 so that the movement range of the handle 101, that is, the handle The guide hole 23 is formed to be free to move 101 from the input position to the blocking position.

The drive unit 4 is for operating the operating unit 5 by the command of the control unit 3, including a drive motor 41 and a clutch bearing for reducing the speed of the drive motor 41 to rotate forward The reducer 42 is integrally formed, and the rotary member 51 of the operating part 5 is inserted into the hole formed in the fixed plate 22 of the housing 2 to be coupled to the reducer 42.

In general, the internal structure of the circuit breaker 100 is an arc is generated when the internal contact of the circuit breaker 100 is injected or cut off, so to compress the spring to reduce the arc generation time, when the compression is completed by the spring restoring force of the spring moment or It is supposed to block. That is, by applying a force to the handle 101 of the breaker 100 to the top or bottom to move the compression slowly until the spring is compressed, when the compression is completed, the force from the outside by the compressed force of the spring inside the breaker 100 Even if it is not applied, since the moment of closing or closing by the restoring force, the moving speed of the handle 101 moves faster than the speed when it is compressed by an external force. If you try to insert or cut off quickly by the restoring force of the inner spring at the moment of closing or closing, but the handle 101 is gradually moved by external force, it may interfere with closing or blocking, which may cause an accident.

In order to prevent the occurrence of such an accident by the reducer 42 including a clutch bearing coupled to the drive motor 41, the drive motor 41 until the inner spring is compressed in the breaker 100 for closing or closing Since the movement of the breaker 100 handle 101 is faster than the speed of the drive motor 41 by the force of the inner spring to reach the peak that is slowly compressed and injected or blocked by the power of the handle 101 of the The connection by means of the handle 101 of the breaker 100 rather than the moving speed of the connecting lever 54 of the operating part 5 by the driving motor 41 to allow the operating part 5 to move according to the moving speed. The movement speed of the lever 54 is increased to come into contact with the limit sensors 6 and 7, and the movement of the handle 101 is caused by the reduction gear 42 including the clutch bearing in the drive motor 41 even at the above-described high speed. Due to power transfer It does not.

The actuating part 5 is combined with the handle 101 of the breaker 100 and is a means for injecting or blocking the breaker 100, and has a form of a bearing to rotate together with the rotation of the driving part 4. Rotating member 51 is installed in the reducer 42, the upper end of the rotating member 51 is seated on the rotary lever 52, the one end is screwed and fixed to the rotating member 51, One end of the connection lever 54 is linked by the connection member 53 while the connection lever 54 is seated at the other end of the rotary lever 52, and the operation lever 55 is connected to the other end of the connection lever 54. One end of the operation lever 55 is linked by the connecting member 53 while the other end is seated, and the other end of the operation lever 55 protrudes to the outside through the guide hole 23 of the housing 2. Of the handle lever 58 is formed with a handle engaging portion 60 for fixing the handle 101 of the (100) Haphol 59 is made of a combined fixed by means of screws is secured to the other end of the operating lever (55). At this time, the connecting member 53 is for supporting both ends of the connecting lever 54 connecting the rotary lever 52 and the operating lever 55, the rotary lever 52, the connecting lever 54 and the operating lever ( Allow the levers to work organically while linking 55 to prevent disassembly.

Then, one end of the operation lever 55 is attached to the fixing member 56 for fixing the operation lever 55 to the fixing plate 22 of the housing 2, the operation lever linked to the connection lever 54 55 controls the seesaw movement of the fixing member 56 to the axis, thereby causing the entire operating part 5 to be organically operated. In addition, the touch bar 57 is fixedly installed at a predetermined position on the lower surface of the operation lever 55, and the operation lever 55 which performs the seesaw movement in place by the fixing member 56 is limited by the movement of the limit sensor 7. ) Make sure contact or disconnection is made. In addition, the coupling hole 59 of the handle lever 58 fixedly coupled to the other end of the operation lever 55 by a screw is formed in a rectangular shape extending from side to side, when the breaker 100 itself breaks down the operation lever. The handle 101 of the breaker 100 is moved by horizontally moving the handle lever 58 through the coupling hole 59 by loosening the screw fixing the coupling hole 59 of the handle 55 and the handle lever 58. It can be easily withdrawn from the handle coupling portion (60).

Therefore, when the driving motor 41 and the reduction gear 42 of the drive unit 4 is rotated forward clockwise, the rotating member 51 built in the reduction gear 42 is rotated clockwise, the rotation The rotating lever 52 fixed to the member 51 is circularly moved by the rotation of the rotating member 51, and the connecting lever 54 connected to the rotating lever 52 also rotates together, and the connecting lever ( The operation lever 55 connected to 54 is also interlocked. At this time, since the operation lever 55 is supported by the fixing plate 22 by the fixing member 56, the rotary lever 52 is moved downward. One end of the connecting lever 54 connected to the rotary lever 52 has an arc like the rotary lever 52, and the other end of the connecting lever 54 connected to one end of the operating lever 55 is connected to the rotary lever 52. The operation lever 55 is supported by the fixing member 56 so that the operation lever 55 as a whole Since the other end of the connection lever 54 is downward, the operation lever 55 is pushed down with the fixing member 56 as its axis, and the other end of the connecting lever 54 is moved upward. .

The limit sensors 6 and 7 are fixedly installed at the lower and upper portions of the housing 2 and connected by the control unit 3 and the electric wires (not shown) to be in contact with or separated from the operating unit 5. A device for operating or stopping 4), because the rotary lever 52 of the operating portion 5 is in contact with the limit sensor 6 provided in the lower portion of the housing 2 in a circular motion, the rotary lever 52 If the contact with the limit sensor 6 while continuing to move downwards and the control unit 3 immediately detects this signal to the drive unit 4 to stop the operation of the drive motor 41, this is just The circuit breaker 100 is turned on.

In order to move the handle 101 of the circuit breaker 100 to the blocking position, when the driving motor 41 is driven by the control unit 3, the rotary lever 52 moves upward by drawing a circular arc. The operating lever 55 linked to the rotary lever 52 by the lever 54 has the fixing member 56 as its axis, and one end thereof is pushed upward, while the other end thereof is pulled downward. The touch bar 57 attached to the) contacts the limit sensor 7 and the control unit 3 immediately detects this to stop the operation of the driving motor 41. In this case, the breaker 100 is blocked. (OFF).

The control unit 3 is for driving or stopping the drive unit 4 by an input signal from a remote or field, and a relay circuit for operating or stopping various devices connected to the control unit 3 by an external input signal. It consists of.

The relay operation principle of the control unit 3 is a known technique, as shown in FIG. 4, whether the circuit breaker 100 is turned on (ON) or shut off (OFF) from a remote state, whether it is in a closed state or a breaker ( In order to check whether 100 is automatically cut off by an overcurrent or ground fault, a circuit connected in parallel with the closing button 25 and the blocking button 26 is constructed and the relays of the limit sensors 6 and 7 and the control unit 3 are connected. A circuit composed of a contact point was drawn out to a terminal to connect LEDs to the respective terminals so as to check an operating state of the electric control apparatus 1 by the LEDs. That is, when the limit sensor 6 is operated, the RED LED (RL) of the terminal 8, or when the limit sensor 7 is operated, the GREEN LED (GL) is operated so that the circuit breaker 100 is turned on or off. (OFF) state can be checked, and if both the limit sensors 6 and 7 are not operated and the relay of the control unit 3 is not operated, the circuit breaker 100 is tripped automatically and the electric operation device ( Since the handle lever 58 of 1) shows that it is in the intermediate position of closing and closing, the breaker 100 is to know that the failure.

Referring to the drawings, the electric operation device of the present invention configured as described above is operated by a remote control as follows.

First, in the normal state, the handle 101 of the circuit breaker 100 is in a closed state (ON) as shown in FIG. 3A, and the handle lever 58 is installed in a state in which it is coupled with the handle 101, thereby operating part. The rotary lever 52 of the (5) is in contact with the limit sensor 6, and the signal is generated in the RED LED (RL) of the terminal portion 8, so that the handle of the breaker 100 in the central control center ( 101) is placed in the ON state.

At this time, when an accident current due to an overcurrent or ground fault occurs, the circuit breaker 100 is cut off by an internal circuit (TRIP), and the handle 101 of the circuit breaker 100 is automatically inserted between the closing position and the blocking position. The handle lever 58 of the operating part 5, which is moved to the trip position and is fitted with the handle 101, is also lowered to the middle part of the guide hole 23. Then, the other end of the operation lever 55 fixed to the handle lever 58 is slightly vertically lowered about the fixing member 56, and one end of the operation lever 55 linked to the connection lever 54 is slightly vertically lowered. As the rotary lever 52 is lifted by the rotational movement, it is separated from the limit sensor 6 as shown in FIG. 3B, and thus the two limit sensors 6 and 7 are not operated and the control unit 3 is operated. Since the relay is also not operating, a signal is generated from the YELLOW LED (YL) of the terminal unit 8, and the central management center confirms that the circuit breaker 100 is automatically tripped by a fault current.

In order to turn on the circuit breaker 100 in the above state, the handle 101 of the circuit breaker 100 needs to be moved back to the input position. For this purpose, the internal structure of the circuit breaker 100 is first handled. Since it is formed to be moved back to the closing position only after the 101 is moved to the blocking position and reset, the central management center sends an OFF (RESET) signal to the control unit 3 to the drive unit 4. When power is applied, the driving motor 41 rotates to rotate the rotary lever 52 of the operating unit 5 forward. When the connecting lever 54 is raised by the rotary lever 52, one end of the operating lever 55 is rotated. Is pushed down and the other end is pulled down and at the same time when the touch bar 57 fixed to one end of the control lever 55 is in contact with the limit sensor 7 as shown in Figure 3c the control unit 3 detects this The drive motor 41 is stopped. Accordingly, as the other end of the operation lever 55 descends, the handle lever 58 fixed thereto lowers the handle 101 of the breaker 100 so that the handle 101 is placed in the blocking position and the terminal part 8 After the signal is generated from the GREEN LED (GL), the central management center confirms that the circuit breaker 100 is reset, and this time sends an ON signal to the controller 3 to supply power to the driver 4. do. Then, when the driving motor 41 again rotates forward and downwards, the rotary lever 52 downwards, the connection lever 54 is downward and one end of the operation lever 55 is pulled down and the other end is pushed upward. When the rotary lever 52 is in contact with the limit sensor 6, the control unit 3 detects this and stops the driving motor 41. As a result, the handle lever 58 fixed to the manipulation lever 55 is raised to position the handle 101 of the circuit breaker 100 in an ON state, and the RED LED of the terminal unit 8 is located. A signal is generated at the (RL) and the central management center confirms that the breaker 100 is turned on.

In addition, in order to operate the handle 101 of the circuit breaker 100 by directly controlling the electric operation device 1 in the field, operate the selection switch 24 installed on the front surface 21 of the housing 2 and the input button ( 25, the driving motor 41 is rotated to operate the operating unit 5 to move the handle 101 of the breaker 100 by the handle lever 58 to turn on the breaker 100 (ON) When the breaker button 26 is pressed in the state in which the breaker 100 is inserted, the driving motor 41 rotates to move the handle 101 of the breaker 100 by the knob lever 58 to break the breaker 100. ) Will be turned off.

The electric operation device of the circuit breaker according to the present invention is connected to the central control center by wire or wireless, so that the input or interruption state or the failure state of the circuit breaker controlled by the electric operation device can be immediately checked remotely or on site. Even when the circuit breaker is blocked, it is a useful design that can save human and time costs by operating the electric control device by remote control of the central control center without having to go directly to the site, so that the circuit breaker can be input or blocked.

Claims (4)

In a mechanical device that can turn the circuit breaker 100 ON or OFF and RESET, A control unit 3 for processing an input signal to supply or cut off power; A drive unit 4 rotated by a command of the control unit 3; An operating part 5 for converting the rotational motion of the drive part 4 into a linear motion by a link to operate the handle 101 of the breaker 100; Limit sensors (6, 7) for detecting the position of the operating unit (5) to operate or stop the drive unit (4); Receiving the components, the front 21 is configured to include a housing 2 is provided with a selector switch 24 is the electric operation of the breaker, characterized in that the breaker 100 can be operated remotely or in the field Device. The method of claim 1, The operation unit 5, A rotating member 51 installed and rotated on the drive motor 41 of the drive unit 4; A rotary lever 52 fixedly coupled to the rotary member 51 and contacting or separating the limit sensor 6 while being circularly moved by the rotation of the driving unit 4; A link lever 54 coupled to the rotary lever 52 and interlocked together in a circular motion of the rotary lever 52; An operation lever 55 having a touch bar 57 formed at a lower portion thereof so as to be coupled to the connection lever 54 and interlocked with the rotation of the connection lever 54 so as to be in contact with or separated from the limit sensor 6; A fixing member 56 which fixes the operation lever 55 so that the operation lever 55 is seesawed up and down; It is fixedly coupled to the operation lever 55, the electric control device of the breaker, characterized in that consisting of a handle lever 58 for operating the handle 101 of the breaker 100 in accordance with the movement of the operation lever (55). The method of claim 1, When the handle 101 of the circuit breaker 100 is instantaneously converted to the closing position or the blocking position by the force of the inner spring, the reduction gear 42 including the clutch bearing does not affect the driving motor 41. Electric operation device of the circuit breaker, characterized in that coupled to the drive motor (41). The method of claim 1, The terminal unit 8 connected to the control unit 3 of the housing 2 is formed, and the terminal unit 8 detects whether the operation unit 5 contacts or disconnects the limit sensors 6 and 7. 100) The electric operation device of the circuit breaker, characterized in that the ON (ON), OFF (OFF) or tripping (TRIP) state can be checked and controlled remotely.