JPH08167365A - Motor operation apparatus for circuit breaker - Google Patents

Abstract

PURPOSE: To provide a motor operation apparatus of a circuit breaker which can detect four states (on, trip-from-on, trip-from-off and off states) of the circuit breaker by a position detecting switch. CONSTITUTION: A cam 32 which is rotated by an electric motor 33 driven by an operational signal and a handle 31 of a circuit breaker 30 move interlockingly. Moreover a motor operation apparatus for the circuit breaker has a slider 35 which is to be engaged with the cam 32 and moves at the time when the cam 32 rotates and detects four states of the circuit breaker 30 based on the output of a cam position detector 41 and slider position detectors 42, 43.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric operating device for a circuit breaker which electrically operates a handle of the circuit breaker remotely.

[0002]

2. Description of the Related Art An example of an electric operating device for a circuit breaker will be described on the basis of JP-A-6-52783. FIG.
27 to 27 are views showing an electric operating device of a circuit breaker, FIG. 20 is a front view thereof, FIG. 21 is a sectional view of a main part showing the circuit breaker in an ON state, and FIG. 22 is a circuit breaker being OFF. 23 is a sectional view of the main part showing the state, FIG. 23 is a sectional view of the main part showing the state where the circuit breaker has tripped from on, and FIG. 24 is a sectional view of the main part showing the state where the circuit breaker has tripped from the off. 25 is a motor control circuit diagram in which the circuit breaker is on, FIG. 26 is a motor control circuit diagram in which the circuit breaker is off, FIG. 27 is a motor control circuit showing a state in which the circuit breaker trips from off, and FIG. It is a figure which shows the state of the switch for cam position detection and the switch for slider position detection corresponding to the state of a circuit breaker.

In the figure, 1 is a circuit breaker and 2 is a handle of the circuit breaker 1. 3 is a cam, and the cam shaft 3a
And is rotated in a fixed direction by an electric motor 9 which is supported by the electric motor 9 and which is not visible in the figure. Reference numeral 4 denotes a cam roller provided on the cam 3. Reference numeral 5 denotes a slider, which is made of a synthetic resin having a low friction coefficient, is slidably held by a guide rod 6, and is reciprocated by a cam 3 in an on / off operation direction of the handle 2. Reference numeral 5a denotes an on-operation cam engagement portion projectingly provided on one end of the slider 5, and 5b denotes an off-operation cam engagement portion projectingly provided on the other end of the slider 5, with which the cam roller 4 is engaged and disengaged. Reference numeral 7 denotes a reset lever, which is rotatably attached to the off-operation cam engagement portion 5b by a pin 8. 1
Reference numeral 6 is a cam position detecting switch for detecting the rotational position of the cam 3, and 17 is a slider position detecting switch for detecting the off position of the slider 5. Here, to detect the off position means to detect whether it is the off position or not the off position (it is not necessary to detect the on position, the position tripped from on, and the position tripped from off). Is.

Next, the operation will be described. In the off state of the circuit breaker 1 shown in FIG. 22, the electric motor 9 is driven by the on operation and the cam 3 rotates 180 degrees in the direction of the arrow 10 (note that the rotation of the cam 3 every 180 degrees is the cam position. The rotation of the electric motor 9 is detected by the detection switch 16), and the cam roller 4
Pushes the on-operation side cam engaging portion 5a toward the arrow 13, so that the cam 3 stops at the on position and the slider 5 moves in the on direction of the handle 2 to move the circuit breaker 1 as shown in FIG. Turns on.

Next, in the ON state of the circuit breaker 1 shown in FIG. 21, when the electric motor 9 is driven by the OFF operation and the cam 3 rotates 180 degrees in the direction of the arrow 11, the cam roller 4 is turned OFF during the operation. Since the side cam engagement portion 5b (actually, the reset lever) is pushed, the slider 5 moves to the handle 2 as shown in FIG.
And the circuit breaker 1 is turned off.

Next, in the ON state of the circuit breaker 1 shown in FIG. 21 and in the OFF state of the circuit breaker 1 shown in FIG. 22, the cam engaging portions 5a and 5b of the slider 5 are separated from the cam roller 4 in both cases. So when the circuit breaker 1 trips,
The slider 5 is not restricted by the cam 3 and is interlocked with the movement of the handle 2 of the circuit breaker 1, and in the ON state of FIG.
In the OFF state shown in FIG. 22, it moves in the direction indicated by the arrow 13 and moves from the OFF state shown in FIG. 24 to the tripped state.

Next, the operation will be described with reference to the electric motor control circuit diagrams for controlling the electric motor 9 of the electric operating device shown in FIGS. When the OFF operation switch 14 is closed in the ON state of the circuit breaker 1 shown in FIG.
As shown in FIG. 5, the off-operation relay 19 → the off-operation relay 20 → the motor control relay 18 and the relays are sequentially excited to rotate the motor 9. Cam 3 as described above
Rotates in the direction of arrow 11 in FIG. 21, and the cam position detection switch 16 switches and stops at the OFF position shown in FIG. In the off state, the slider 5 switches the slider position detecting switch 17 as shown in FIG.

Next, when the ON operation switch 15 is closed in the OFF state of the circuit breaker 1 shown in FIG.
As shown in FIG. 6, the ON operation relay 21 → the ON operation relay 22 → the electric motor control relay 18 and the respective relays are sequentially excited to rotate the electric motor 9. Cam 3 as described above
22 rotates in the direction of arrow 10 in FIG. 22 to switch the cam position detection switch 16 at the ON position shown in FIG. 21, thereby cutting off the exciting current of the ON operation relay 22. In the ON state, the slider 5 switches the slider position detecting switch 17 as shown in FIG.

Next, when the circuit breaker 1 shown in FIG. 23 has tripped from ON, the slider 5 interlocks with the movement of the handle 2 of the circuit breaker 1 to the trip position, and the slider 5 moves from the position shown in FIG. Although it moves to the position, since the cam position detecting switch 16 and the slider position detecting switch 17 are in the same state as when the switch is on, the motor control circuit is shown in FIG.
In the ON state shown in FIG. 5, OFF is awaited in the state of waiting for an operation signal. In the state where the circuit breaker 1 shown in FIG. 24 trips from off, the slider 5 moves from the position of FIG. 22 to the position of FIG. 24 in conjunction with the movement of the handle 2 of the circuit breaker 1 to the trip position. Slider position detection switch 17
27, the ON operation relay 22 is excited, and then the electric motor control relay 18 is excited to rotate the electric motor 9. When the cam 3 interlocks with the electric motor 9 to rotate about 180 degrees in the tripped state shown in FIG. 24, the cam position detection switch 16 is switched to cut off the exciting current of the ON operation relay 22. Then, the exciting current of the electric motor control relay 18 is also cut off, and the electric motor 9 is stopped. At this time, the state of tripping from ON shown in FIG. 23 means that the cam position detection switch 1
6 and the slider position detection switch 17 are shown in FIG.
The state becomes exactly the same as the ON state shown in 1, and the apparatus waits in the state of waiting for the OFF operation signal. As shown in FIG. 28, which summarizes the above, the cam position detecting switch 16 includes the circuit breaker 1.
Is an open state in the ON state and a state of tripping from the ON state, and a closed state in the OFF state and a state of tripping from the OFF state. Further, the slider position detecting switch 17 is
The circuit breaker 1 is in the closed state when the circuit breaker 1 is on or tripped, and is in the open state when the circuit breaker is off. Further, the state of the circuit breaker 1 can be directly taken out from the circuit breaker 1, but the inside of the circuit breaker 1 has a high voltage and has a small spatial margin.

[0010]

In the conventional electric operating device for a circuit breaker as described above, the slider position detecting switch is closed when the circuit breaker is in the ON state and the trip state. It was not possible to detect the three states of the circuit breaker (on, trip, off) by the slider position detection switch. Further, in order to configure the reset circuit at the time of trip, it is necessary to incorporate the signal into the operation circuit of the motor with a circuit breaker equipped with an alarm switch (alarm switch), or to configure the operation circuit by the user. . In addition, the electric operating device of the circuit breaker has four states (ON, ON to trip,
It was not possible to detect the control of the motor and the state of the circuit breaker by detecting the position detection switch (OFF to trip, OFF) with the position detection switch.

The present invention has been made to solve the above problems, and in the conventional electric operating device for a circuit breaker as described above, a slider position detecting switch is used to switch between three states ( The purpose is to detect (on, trip, off). Another object of the present invention is to obtain an electric operating device for a circuit breaker that enables the display of three states and the configuration of a reset circuit at the time of trip without the alarm switch (alarm switch) of the circuit breaker. Another object of the present invention is to obtain an electric operating device for a circuit breaker that can detect four states of the circuit breaker (ON, ON to trip, OFF to trip, OFF) by a position detection switch.

[0012]

An electric operating device for a circuit breaker according to the present invention moves in association with a drive device for moving a slider and a handle of the circuit breaker at an on position, a trip position and an off position. A slider, and a circuit breaker is turned on, turned on, tripped, turned off, tripped, or turned off by detecting a handle, a moving part of a driving device, or a slider by a plurality of position detectors. It is configured to detect whether or not

Further, the cam that rotates the slider to move the slider at the time of rotation and the handle of the circuit breaker at the on position, the trip position, and the off position move in conjunction with each other, and when the cam stops, the above It has a slider that separates from the cam, the cam position detector detects the cam position, the slider position detector detects the slider position, and the circuit detects the output of the cam position detector and the slider position detector. It is configured to input the output and detect whether the circuit breaker is on, trips from on, trips from off, or off.

Further, the cam for rotating the slider to move the slider at the time of rotation and the handle of the circuit breaker at the on position, the trip position and the off position move in conjunction with each other, and when the cam is stopped, the above described A first slider position detector and a second slider position detector,
The slider position detector detects the position of the slider, and the circuit inputs the outputs of the first slider position detector and the second slider position detector to turn on the circuit breaker.
It is configured to detect whether it is in a trip or off state.

Further, the cam which rotates by the electric motor to move the slider at the time of rotation and the handle of the circuit breaker at the ON position, the trip position and the OFF position move together with each other, and when the cam is stopped, the above-mentioned It has a slider that separates from the cam, the cam position detector detects the cam rotation position, the first slider position detector detects the ON position, and the second slider position detector detects the OFF position. It is configured to detect.

Further, the circuit breaker is turned on, tripped, or turned off from the outputs of at least two position detectors by the display means, or turned on, tripped, turned off, tripped, or turned off. It is configured to be displayed.

Furthermore, the trip state of the circuit breaker is detected from the outputs of at least two position detectors, and the electric motor is operated by the reset circuit.

[0018]

The electric operating device for the circuit breaker according to the present invention includes a circuit having the outputs of a plurality of position detectors as inputs.
It detects whether the circuit breaker is on, trips from on, trips from off, or off, and detects the four states of the circuit breaker.

Further, the circuit breaker is turned on, from on to trip, from off to trip, by a circuit using the output from the cam position detector and the output from the slider position detector as input.
It detects which state is off, and
Detect the condition.

The first slider position detector and the second slider position detector
The circuit that receives the output from the slider position detector detects whether the circuit breaker is on, tripped, or off, and detects three states of the circuit breaker.
Further, the slider position detector has a wide arrangable range and is easy to dispose.

The circuit breaker is turned on, turned on, tripped, turned off, tripped, off using the output of the cam position detector and the outputs of the first slider position detector and the second slider position detector as inputs. Which state or on,
Detects whether it is tripped or off.

Further, the state of the circuit breaker can be displayed from the output of the position detector by the display means, and the energized state of the power source is shown.

Further, when the trip condition is detected, the electric motor is operated to reset the circuit breaker.

[0024]

【Example】

Embodiment 1 Hereinafter, an electric operating device for a circuit breaker according to an embodiment of the present invention will be described with reference to FIGS. 1 is a front view, FIG. 2 is a partial cross-sectional view of FIG. 1 seen from the right, FIG. 3 is a cross-sectional view taken along the line AA in FIG.
2 is a cross-sectional view taken along line AA in FIG. 2 in which the circuit breaker is in an off state, FIG. 5 is a cross-sectional view taken along line AA in FIG. 2 in a state in which the circuit breaker trips from on, and FIG.
A with the circuit breaker tripped from off
FIG. 7 is a cross-sectional view taken along line A in FIG.
FIG. 8 is a connection diagram showing a combination of the cam position detector, the first slider position detector and the second slider position detector.

In the figure, 30 is a circuit breaker, 31 is a handle of the circuit breaker 30, 32 is a cam supported by a cam shaft 32a and rotated in a fixed direction by an electric motor 33, 34 is a cam roller provided on the cam 32, 35 is a guide rod 36
The slider 31 is slidably held by the cam 32 and is slidable in the on / off operation direction of the handle 31 by the rotation of the cam 32 and reciprocates. The slider 35 a is provided on the slider 35. Opening for insertion, 3
Reference numeral 7 denotes an on-operation-side cam engaging portion that is provided on one end of the slider 35 and that engages with the cam roller 34 during an on-operation.
An off-operation side cam engagement portion that engages with 39, a reset lever 39 that is rotatably attached to the off-operation side cam engagement portion 38 by a pin 40, and a cam position 41 that detects the rotational position of the cam 32. A cam position detection switch which is a detector, 42
Is a first slider position detecting switch which is a first slider position detector for detecting the off position of the slider 35, 4
Reference numeral 3 denotes a second slider position detector which is a second slider position detector for detecting the ON position of the slider 35,
Reference numeral 101 is a device frame mounted on the circuit breaker 30 by a mounting base 102, 103 is a device cover fixed by covering the device frame 101, and 104 is a manual erected rotatably supported by the device frame 101 and a supporter. The operating shaft, 105 is a manual lever fixed to the lower end of the manual operating shaft 104 and the other end roller engages with the recess of the slider 35, 106 is fixed to the device cover 103, and the circuit breaker 3
Display means for displaying the state of 0, 107 is the device cover 10
3, a manual operation handle detachably attached to the reference numeral 3, 108 is an insertion hole of the manual operation handle 107 provided in the apparatus cover 103, and 109 is a fitting hole of the manual operation handle 107 recessed in the upper end surface of the manual operation shaft 104. . In each drawing, the upper side of the drawing is the handle 31 of the circuit breaker 30.
Shows the on position, and the lower side shows the off position. The tripped position of the handle 31 of the circuit breaker 30 is near the middle of the on position and the off position.

Next, the operation will be described. First, the case where the circuit breaker 30 is turned on from the off state will be described. In the off state of the circuit breaker 30 shown in FIG.
Both the first slider position detection switch 42 and the second slider position detection switch 43 are in the open state, and the electric motor 33 is driven by the ON operation to rotate the cam 32 in the direction of the arrow 44 by 180 degrees. , Cam 32 of 18
The rotation of the motor 33 is stopped by detecting the rotation at every 0 degrees by the cam position detection switch 41. )
Then, the cam roller 34 pushes the on-operation side cam engagement portion 37 in the direction of the arrow 45 in the middle thereof, so that the cam 32 stops at the on position, and the slider 35 moves in the on direction of the handle 31 as shown in FIG. Then, the circuit breaker 30 is turned on. At this time, as the slider 35 moves, the first
Both the slider position detecting switch 42 and the second slider position detecting switch 43 are closed.

Next, the case where the circuit breaker 30 is turned off from the on state will be described. Circuit breaker 3 shown in FIG.
In the ON state of 0, both the first slider position detecting switch 42 and the second slider position detecting switch 43 are closed, and the electric motor 33 is driven by the OFF operation so that the cam 32 moves 180 degrees in the direction of the arrow 46. When rotated, the cam roller 34 pushes the off-operation side cam engagement portion 38 (actually, the reset lever 39) in the middle,
As shown in FIG. 4 in which the cam 32 is stopped at the off position, the slider 35 moves in the off direction of the handle 31 and the circuit breaker 30 is turned off. At this time, with the movement of the slider 35, both the first slider position detecting switch 42 and the second slider position detecting switch 43 are opened.

Next, the case where the circuit breaker 30 trips from the on state or the off state will be described. In the ON state of the circuit breaker 30 shown in FIG. 3 and the OFF state of the circuit breaker 30 shown in FIG. 4, both of the cam engaging portions 37 and 38 of the slider 35 are separated from the cam roller 34. When the trip occurs, the slider 35 is not restrained by the cam 32 and is interlocked with the movement of the handle 31 of the circuit breaker 30 to move in the direction of the arrow 47 in the ON state shown in FIG. From the off state shown in FIG. 6, the state is tripped from the off state shown in FIG. 6 by moving in the direction of arrow 45 in the off state shown in FIG. At this time, as the slider 35 moves, the first slider position detecting switch 42 is closed and the second slider position detecting switch 43 is opened.

Further, a case where the circuit breaker 30 is manually operated will be described. When the circuit breaker 30 shown in FIG. 3 is turned on, the manual operation handle 107 is inserted into the insertion hole 108.
When the manual operation shaft 104 is fitted in the fitting hole 109 and is rotated counterclockwise, the slider 35 is moved in the off direction by the manual lever 105, and the off operation can be manually performed. Further, when the circuit breaker 30 shown in FIG. 4 is in the OFF state, when the manual operation handle 107 is fitted into the fitting hole 109 from the insertion hole 108 and the manual operation shaft 104 is rotated clockwise, the slider 3 is moved by the manual lever 105.
5 is moved in the ON direction so that the ON operation can be performed manually. During this manual operation, the slider 35 is not constrained by the cam 32, so only the handle 31 of the circuit breaker 30 needs to be operated.

Summarizing the above, the cam position detector, the first slider position detector, and the second slider position corresponding to the four states of the circuit breaker (ON, ON to trip, OFF to trip, OFF). The state of the detector will be described with reference to FIG. A cam position detection switch 41 for detecting the rotational position of the cam 32, a first slider position detection switch 42 for detecting the off position of the slider 35, and the slider 3
By providing the second slider position detecting switch 43 for detecting the ON position of No. 5, the cam position detector 41 is in the open state when the circuit breaker 30 is in the ON state, the first slider position detecting switch 42 and the second slider position detecting switch 42. Both the slider position detecting switches 43 are closed, and the circuit breaker 30
Is in the off state, the cam position detecting switch 41 is in the closed state, the first slider position detecting switch 42 and the second slider position detecting switch 43 are in the open state, and the circuit breaker 30 is in the on to trip state. The cam position detection switch 41 is in the open state, the first slider position detection switch 42 is in the closed state, the second slider position detection switch 43 is in the open state, and the cam position detection is performed when the circuit breaker 30 is off to the trip state. Switch 41 is closed, the first slider position detecting switch 42 is closed, and the second slider position detecting switch 43 is open. From this, the cam position detecting switch 41, the first slider position detecting switch 42, and the second
By detecting the slider position detection switch 43, it is possible to detect the four states of the circuit breaker 30.

For detecting the four states of the circuit breaker 30, for example, as shown in FIG. 8, the first slider position detecting switch 42 and the second slider position detecting switch 43 are set to the first slider position detecting switch. The three-way switch is configured such that 42 is on the input side, and the cam position detecting switch 41 and the second slider position detecting switch 43 are arranged so that the second slider position detecting switch 43 is on the input side. If the three position detecting switches 41, 42, and 43 are connected so as to form a three-way switch, the circuit breaker 30 of the circuit breaker 30 is changed according to the states of the three position detecting switches 41, 42, and 43 shown in FIG. It can be seen that four states can be detected.

Although the position detecting switch has been described as an example of the cam position detector and the slider position detector, any sensor capable of detecting the position may be used. further,
Although the relationship between the open state and the closed state of the position detection switch as shown in FIG. 8 changes depending on the arrangement positions of the slider 35 and the cam 32, it may be relatively equivalent. Further, in FIG. 8, the combination of the cam position detecting switch 41, the first slider position detecting switch 42, and the second slider position detecting switch 43 corresponds to the three position detecting switches 41, 42, 43, respectively. The connection position may be changed.

Embodiment 2 Another embodiment of the present invention will be described. FIG. 9 is a motor control circuit diagram provided with an LED lighting open circuit which is a display means for showing the off state (state shown in FIG. 4) of the circuit breaker 30, FIG.
0 is a motor control circuit diagram provided with an LED lighting open circuit as a display means for indicating the ON state (state shown in FIG. 3) of the circuit breaker 30, and FIG. 11 is the state at the moment when the circuit breaker 30 is tripped from OFF (FIG. L, which is a display unit indicating the state (6)
FIG. 12 is a motor control circuit diagram provided with an LED lighting open circuit which is a display means showing the state (state shown in FIG. 5) at the moment when the circuit breaker 30 is tripped from the ON state (state shown in FIG. 5). is there.

In the figure, 50 is an ON operation switch and 5
1 is an off operation switch, 52 is a switching power supply, 5
3, 54, 55 are electric motor control relays, 56 is an ON operation relay, 57 is an OFF operation relay, 58 is a safety switch for manual operation, 60 is an ON display LED fixed to the device cover 103 and displaying an ON state ( Light emitting diode), 6
Reference numeral 1 is an OFF display LED fixed to the device cover 103 and displaying an OFF state, and 62 is a trip display LED fixed to the device cover 103 and displaying a trip state.

When the circuit breaker 30 shown in FIG. 9 is in the off state, the off indicator LED 61 is lit through the first slider position detecting switch 42. ON operation switch 5
When 0 is closed, the ON operation relay 56, the electric motor control relay 53, the electric motor control relays 54 and 55, and the respective relays are sequentially excited to rotate the electric motor 33. As described above, the cam 32 rotates in the direction of the arrow 44 in FIG.
The cam position detecting switch 41 is switched at the ON position shown by, and the exciting current of the motor control relay 53 is cut off. Then, the excitation of the electric motor control relays 54 and 55 is also cut off, and the electric motor 33 is stopped. In the ON state, as shown in FIG. 3, the slider 35 switches the first and second slider position detectors 42 and 43 to turn off the off display LED 61 and turn on the on display LED 60.

When the OFF operation switch 51 is closed while the circuit breaker 30 shown in FIG. 10 is in the ON state, the OFF operation relay 57, the electric motor control relay 53, the electric motor control relays 54 and 55, and the respective relays are sequentially arranged. It is excited and rotates the electric motor 33. As described above, the cam 32 rotates in the direction of the arrow 46 shown in FIG. 3 to switch the cam position detection switch 41 at the off position shown in FIG. 4, thereby cutting off the exciting current of the motor control relay 53. Then, the excitation of the electric motor control relays 54 and 55 is also cut off, and the electric motor 33 is stopped. In the off state, as shown in FIG. 4, the slider 35 switches the first and second slider position detectors 42 and 43 to turn off the on display LED 60 and turn on the off display LED 61.

When the circuit breaker 30 of FIG. 11 has tripped from off, the slider 35 moves from the position shown in FIG. 4 to the position shown in FIG. 6 in conjunction with the movement of the handle 31 of the circuit breaker 30 to the trip position. Since it moves and the first slider position detector 42 is switched, the off display LED 61 is turned off and the trip display LED 62 is turned on as shown in FIG.

When the circuit breaker 30 shown in FIG. 12 has tripped from the on state, the slider 35 moves from the position shown in FIG. 3 to the position shown in FIG. 5 in conjunction with the movement of the handle 31 of the circuit breaker 30 to the trip position. Since the second slider position detector 43 is moved and switched, the ON display LED 60 is turned off and the trip display LED 62 is turned on as shown in FIG.

As described above, the cam position detecting switch 4
1, the first slider position detecting switch 42 and the second slider position detecting switch 43
Circuit breaker 3 by detecting the four states of
By providing an LED lighting circuit showing three states of 0 (on, trip off) in the motor control circuit, it becomes possible to display by the LED corresponding to each state. Here, the display means 106 for displaying the three states of the circuit breaker 30 has been described, but as shown in FIG. 7 and FIG.
Since the state is detected, it is possible to display each state by the LED. Further, as the display means, the display by the LED fixed to the device cover 103 is shown, but the 4 state or 3 state of the circuit breaker 30 is displayed on the remote operation device of the electrically operated device of the circuit breaker 30. Is also good. Further, since the electric signals for detecting the four states of the circuit breaker 30 are displayed on the LED or the remote control device, it is possible to confirm whether or not the electric power supply is turned on.

Embodiment 3 Another embodiment of the present invention will be described. FIG. 13 is a diagram in which a reset circuit is provided in the electric motor control circuit of the electric operating device of the circuit breaker, and FIGS. 14 to 16 are provided with a selectable reset circuit in the electric motor control circuit of the electric operating device of the circuit breaker. It is a figure. In the figure, 63 is a reset wire that constitutes a reset circuit, 64 (FIG. 14) is a wire connected between the motor control relay 53 and the cam position detection switch 41, and 65 is a second slider position detection switch 43.
And the wiring connected between the trip display LED 62 and 66,
67 is connected to the wirings 64 and 65, respectively, to connect the circuit breaker 3
0 is a reset terminal provided outside the electric operating device.

As shown in FIG. 13, between the motor control relay 53 and the cam position detection switch 41, the second slider position detection switch 43 and the trip display LED 62.
The reset circuit is configured by providing the reset wiring 63 that connects between the two. Circuit breaker 30 shown in FIG.
Since the reset wiring 63 is provided in the state in which the motor has tripped from ON, the motor control relay 53 is excited through the reset wiring 63, the first slider position detection switch 42 and the second slider position detection switch 43. Then, the electric motor control relays 54 and 55 are excited, the electric motor 33 is rotated, the cam 32 rotates 180 degrees, and the state shown in FIG. 5 shifts from the tripped state to the off state shown in FIG. That is, the circuit breaker 30 is automatically reset.

Further, as shown in FIG. 14, the wiring 64 connected between the motor control relay 53 and the cam position detection switch 41 and the second slider position detection switch 4 are provided.
A wire 65 connected between the LED 3 and the LED 62 is provided, and the tip of the wire is led out of the electric operating device and connected to the reset terminals 66 and 67. If the reset terminal 66 and the reset terminal 67 are short-circuited, a reset circuit similar to the above is formed, and if not short-circuited, a normal motor control circuit is formed. With this configuration, it is possible for the user to select the presence or absence of the reset circuit as needed.

Similarly, as shown in FIG. 15 in which the circuit breaker 30 is in the off state, a cam position detecting switch 41, a first slider position detecting switch 42 and a second slider position detecting switch 43 are connected. If the electric motor control circuit is configured in this manner, the circuit breaker 30 is reset from the on state to the off state from the tripped state. That is, when the circuit breaker 30 shown in FIG. 5 has tripped from ON, the cam position detection switch 41 is in the open state (upper side in FIG. 15) and the first slider position detection switch 42 is in the closed state (FIG. 15). The upper side) and the second slider position detecting switch 43 are in the open state (lower side in FIG. 15).
At this time, if the reset terminal 66 and the reset terminal 67 are short-circuited, the off operation relay 57 is excited, and then,
The motor control relay 54 is excited, the motor 33 is rotated, the cam 32 is rotated 180 degrees, and the state shown in FIG. 5 is shifted from the on state to the trip state to the off state shown in FIG.
That is, the circuit breaker 30 is reset.

Further, as shown in FIG. 16 in which the circuit breaker 30 is in the off state, a cam position detecting switch 41, a first slider position detecting switch 42 and a second slider position detecting switch 43 are connected. If the electric motor control circuit is configured in this way, the circuit breaker 30 is reset from the on state to the trip state and from the off state to the off state. That is, when the circuit breaker 30 shown in FIG.
Is an open state (upper side in FIG. 16), the first slider position detecting switch 42 is closed (upper side in FIG. 16), and the second slider position detecting switch 43 is open (lower side in FIG. 16). Becomes At this time, reset terminal 6
If 6 and the reset terminal 67 are short-circuited, the off operation relay 57 is excited, and then the motor control relay 54
Is excited, the motor 33 is rotated, and the cam 32 moves 180
It rotates once, and shifts from the on state shown in FIG. 5 to the off state shown in FIG. That is, the circuit breaker 30 is reset. Further, when the circuit breaker 30 shown in FIG. 5 trips from OFF, the cam position detecting switch 41 is closed (upper side in FIG. 16) and the first slider position detecting switch 42 is closed (FIG. 16). The upper side) and the second slider position detecting switch 43 are in the open state (lower side in FIG. 16). At this time, if the reset terminal 66 and the reset terminal 67 are short-circuited, the off operation relay 57 is excited, then the motor control relay 54 is excited, the motor 33 is rotated, and the cam 32 moves to the 1st position.
It rotates by 80 degrees and shifts from the off-tripped state shown in FIG. 6 to the on-tripped state shown in FIG. Next, the off state shown in FIG. 4 is entered by the same operation as described above. That is, the circuit breaker 30 is reset.

As described above, by detecting the four states of the circuit breaker 30, a motor for resetting from a state of tripping from on, resetting from a state of tripping from off, or resetting from a state of tripping from on. A reset circuit of the control circuit can be configured. Therefore, it is not necessary to provide an alarm device as in the conventional case. In addition, it goes without saying that a reset circuit of the electric motor control circuit that resets only the tripped state from off can be similarly configured. Further, as shown in FIGS. 14 to 16, if reset terminals 66 and 67 are provided and these are short-circuited, the presence or absence of the reset circuit 63 can be selected as necessary.

Embodiment 4 An electric operating device for a circuit breaker, which is another embodiment of the present invention, will be described. In FIG. 3, 42 is a slider 35.
Which is a first slider position detector for detecting the position of the
Switch 43 for detecting the position of the slider, reference numeral 43 is a switch for detecting the second slider position which is a second slider position detector for detecting the position of the slider 35, and the switch 42 for detecting the first slider position and the switch 42 for detecting the second slider position. It is configured so that the three states (on, trip, off) of the circuit breaker 30 can be detected from the output of the position detection switch 43. Other configurations are the same as those described in the first embodiment.

For example, as its configuration, the circuit breaker 30
Is ON, the first slider position detection switch 42
And the second slider position detecting switch 43 are both closed, and when the circuit breaker 30 is off, both the first slider position detecting switch 42 and the second slider position detecting switch 43 are in the open state, Circuit breaker 3
The two slider position detection switches 42 and 43 may be arranged such that when 0 is in the trip state, the first slider position detection switch 42 is closed and the second slider position detection switch 43 is opened. At this time, the states of the two slider position detecting switches 42 and 43 corresponding to the state of the circuit breaker 30 are the states when the cam position detector of FIG. 7 is not provided.

As described above, the three states (on, trip, off) of the circuit breaker 30 can be detected from the outputs of the two slider position detecting switches 42 and 43.
Similarly to Embodiment 3 and Embodiment 3, it is possible to provide a display device for displaying three states of the circuit breaker 30 and to configure a reset circuit for the motor control circuit from the trip status of the circuit breaker 30. As in Embodiments 2 and 3, Has the effect of. Further, the slider position detector has a wider disposition area than the cam position detector and is easy to dispose.

Embodiment 5 An electric operating device for a circuit breaker according to another embodiment of the present invention will be described with reference to FIG. FIG. 17 is a sectional view taken along the line AA in FIG. 2 in which the circuit breaker is in the ON state. In the figure, 41b is a cam position detecting switch that is a cam position detector that detects the rotational position of the cam 32, 42b is a slider position detecting switch that is a slider position detector that detects the position of the slider 35, and 35b is a slider. It is a trip position detecting portion which is a part of the slider 35 and which engages with the slider position detecting switch 42b when the slider 35 is at the trip position. Four states of the circuit breaker 30 by the cam position detection switch 41b and the slider position detection switch 42b (ON, ON to trip, OFF to trip, OFF)
Configure a circuit that can detect The other components and operations are the same as those in the first embodiment, and thus the description thereof will be omitted.

In this embodiment, the switch 41b for detecting the cam position detects whether the open circuit breaker 30 is in the ON state, the trip state from ON, the OFF state or the trip state from OFF, and the slider position detecting switch 42b. Thus, the open circuit breaker 30 detects an on state, an off state, a trip state from on or a trip state from off. FIG. 18 shows the states of the cam position detector and the slider position detector corresponding to the four states of the circuit breaker.
This will be described below. By providing the cam position detecting switch 41b for detecting the rotating position of the cam 32 and the slider position detecting switch 42b for detecting the trip position of the slider 35, the cam position detector 41b and the slider are detected when the circuit breaker 30 is in the ON state. The position detecting switches 42b are both opened, the circuit breaker 30 is off, the cam position detecting switch 41b is closed, the slider position detecting switch 42b is open, and the circuit breaker 30 is opened.
When the switch trips from ON, the cam position detecting switch 41b is opened and the slider position detecting switch 42b is opened.
b is closed, and when the circuit breaker 30 trips from off, both the cam position detection switch 41b and the slider position detection switch 42b are closed. From this, the cam position detection switch 41b
With the slider position detection switch 42b, it is possible to detect four states of the circuit breaker 30.

From the above, the cam position detecting switch 41b
Since four states of the circuit breaker 30 (ON, ON to trip, OFF to trip, OFF) can be detected from the detection of the slider position detection switch 42b and the slider position detection switch 42b, like the second and third embodiments, the circuit breaker is detected. It is possible to configure a reset circuit of the electric motor control circuit from the tripped state of the circuit breaker 30 by providing a display means for three states of 30. From this,
It has the same effect as the second and third embodiments. Further, since two position detecting switches are used, it is possible to configure with a very small number of parts.

[Embodiment 6] FIG. 19 showing a longitudinal section of a main portion of an electric operating device for a circuit breaker in an on state according to another embodiment of the present invention will be described. In the figure, 30 is a circuit breaker, 31 is a handle of the circuit breaker 30, and 120 is a rotating shaft 121 of the electric motor 33.
A worm gear that is rotated through the worm gear 122, a driven body that moves in the X and Y directions as the worm gear 120 rotates,
Reference numeral 35 is slidably held by a guide rod (not shown), and is formed on the handle 31 by a material having a low friction coefficient that reciprocates by sliding in the on / off operation direction of the handle 31 by the movement of the driven body 122. A slider that moves together, 123 is an ON-direction limit switch, 124 is an OFF-direction limit switch, and 125 is a circuit breaker 30.
ON position detection switch, 126 is a circuit breaker OFF position detection switch, and 127 is a non-contact distance sensor and trip position detection sensor. Here, the rotating shaft 121, the worm gear 120, and the driven body 122 form a moving portion of the driving device, and the moving portion of the driving device and the electric motor 33 form a driving device. Further, in the figure, the X direction is the position of the handle 31 showing the ON state of the circuit breaker 30.

Next, the operation will be described. A case where the circuit breaker 30 shown in FIG. 19 is turned off from the on state will be described. When the electric operating device of the circuit breaker 30 is turned off, the electric motor 33 rotates in the direction opposite to 128 and the driven body 122 moves in the Y direction. This follower 12
2 presses the limit switch 124, the motor 33
And the driven body 122 moves in the X direction and pushes the off position detection switch 126 to stop. Further, the case where the circuit breaker 30 is turned on from the off state will be described. When the electric operating device of the circuit breaker 30 is turned on, the electric motor 33 rotates in the 128 direction and the driven body 122 moves in the X direction. When the driven body 122 presses the limit switch 123, the rotation direction of the electric motor 33 is reversed, the driven body 122 moves in the Y direction, and the ON position detection switch 125 is pressed to stop. Further, a case where the circuit breaker 30 trips from the ON state will be described. Interlocking with the movement of the handle 31 of the circuit breaker 30, the slider 35 moves from the ON position to a trip position (not shown) from ON. Here, the trip position from ON is the position of the driven body 122 in the ON position and the position of the slider 35 moved in the Y direction from the ON position in FIG. Further, a case where the circuit breaker 30 trips from the off state will be described. In conjunction with the movement of the handle 31 of the circuit breaker 30,
The slider 35 moves from the off position to a trip position (not shown) from the off position. Here, the trip position from the off state is a state in which the position of the driven body 122 is in the off position and the position of the slider 35 is moved from the off position in the X direction.

In this embodiment, the ON position detecting switch 125, the circuit breaker OFF position detecting switch 126, and the trip position detecting sensor 127 can represent the four states of the open circuit breaker 30 as in FIG. It is possible. From this, similarly to the second and third embodiments, it is possible to provide the three-state display means of the circuit breaker 30 and configure the reset circuit of the motor control circuit from the tripped state of the circuit breaker 30. From this, Example 2 and Example 3
Has the same effect as.

[0055]

As described above, according to the present invention, the drive device for moving the slider, the on position, the trip position,
It has a slider that moves in conjunction with the handle of the circuit breaker in the off position,
Detecting either the moving part of the drive or the slider,
The circuit detects whether the circuit breaker is on, trips from on, trips from off, or off. Therefore, the circuit breaker can be controlled or displayed according to the four states of the circuit breaker. An operating device is obtained.

Further, the cam for rotating the slider to move the slider at the time of rotation and the handle of the circuit breaker at the ON position, the trip position, and the OFF position move together with each other, and when the cam is stopped, the above-mentioned It has a slider that separates from the cam, the cam position detector detects the cam position, the slider position detector detects the slider position, and the circuit detects the output of the cam position detector and the slider position detector. The circuit breaker is configured to detect whether the circuit breaker is on, trips from on, trips from off, or off by inputting the output.
An electric operating device of a circuit breaker capable of controlling and displaying according to the state is obtained.

Further, the cam that rotates by the electric motor to move the slider at the time of rotation and the handle of the circuit breaker at the on position, the trip position, and the off position move in conjunction with each other, and when the cam stops, the above A first slider position detector and a second slider position detector,
The slider position detector detects the position of the slider, and the circuit inputs the outputs of the first slider position detector and the second slider position detector to turn on the circuit breaker.
Since it is configured to detect whether it is in the trip or off state, it is possible to obtain an electric operating device for a circuit breaker that can perform control and display according to the three states of the circuit breaker. Further, the slider position detector has a high degree of freedom in installation and is easy.

Further, the cam for rotating the slider to move the slider at the time of rotation and the handle of the circuit breaker at the on position, trip position and off position interlock with each other, and when the cam is stopped, the above It has a slider that separates from the cam, the cam position detector detects the cam rotation position, the first slider position detector detects the ON position, and the first slider position detector detects the OFF position. Since it is configured to detect, the circuit for detecting the state of the circuit breaker can be easily configured, and the circuit breaker's 3
An electric operating device of a circuit breaker capable of controlling and displaying in four states or four states is obtained.

Furthermore, the circuit breaker is turned on, tripped, or turned off from the outputs of at least two position detectors by the display means, or turned on, tripped, turned off, tripped, or turned off. Since it is configured to display, it is possible to visually recognize the state of the circuit breaker and also the on / off state of the power supply.

Further, since the trip state of the circuit breaker is detected from the outputs of at least two position detectors and the electric motor is operated by the reset circuit at the time of trip, the alarm switch can be automatically reset. Does not need

[Brief description of drawings]

FIG. 1 is a front view of an electric operating device for an open circuit breaker according to an embodiment of the present invention.

FIG. 2 is a partial cross-sectional view of FIG. 1, which is an embodiment of the present invention, seen from the right.

FIG. 3 is a sectional view taken along the line AA in FIG. 2 showing the circuit breaker in the ON state in the embodiment of the present invention.

FIG. 4 is a cross-sectional view taken along line AA in FIG. 2 showing the circuit breaker in the off state in FIG. 2 which is an embodiment of the present invention.

FIG. 5 is a cross-sectional view taken along line AA in the state where the circuit breaker has tripped from the on state in FIG. 2 which is an embodiment of the present invention.

FIG. 6 is a cross-sectional view taken along line AA in a state where the circuit breaker has tripped from the off state in FIG. 2 which is an embodiment of the present invention.

FIG. 7 is a diagram showing states of the cam position detector, the first slider position detector, and the second slider position detector corresponding to the state of the circuit breaker according to the embodiment of the present invention.

FIG. 8 is a cam position detector according to an embodiment of the present invention,
It is a connection diagram showing a combination of a first slider position detector and a second slider position detector.

FIG. 9 is an LED as a display means showing the off state (state shown in FIG. 4) of the circuit breaker according to another embodiment of the present invention.
It is a motor control circuit diagram which provided the lighting opening.

FIG. 10: LE which is a display means showing the ON state (state shown in FIG. 3) of the circuit breaker according to another embodiment of the present invention.
It is a motor control circuit diagram which provided the D lighting open circuit.

FIG. 11 is a motor control circuit diagram provided with an LED lighting open circuit which is a display means for showing a state (state shown in FIG. 6) at a moment when the circuit breaker according to another embodiment of the present invention is tripped from OFF.

FIG. 12 is a motor control circuit diagram provided with an LED lighting open circuit which is a display means for showing a state (state shown in FIG. 5) at a moment when the circuit breaker according to another embodiment of the present invention is tripped from ON.

FIG. 13 is a diagram in which a reset circuit is provided in an electric motor control circuit of an electric operating device for a circuit breaker according to another embodiment of the present invention.

FIG. 14 is a diagram in which a selectable reset circuit is provided in an electric motor control circuit of an electric operating device for a circuit breaker according to another embodiment of the present invention.

FIG. 15 is a diagram in which a selectable reset circuit is provided in an electric motor control circuit of an electric operating device for a circuit breaker according to another embodiment of the present invention.

FIG. 16 is a diagram in which a selectable reset circuit is provided in an electric motor control circuit of an electric operating device for a circuit breaker according to another embodiment of the present invention.

FIG. 17 is a sectional view taken along the line AA in FIG. 2 showing another embodiment of the present invention, in which the circuit breaker is in the ON state.

FIG. 18 is a diagram showing states of a cam position detector and a slider position detector corresponding to four states of a circuit breaker according to another embodiment of the present invention.

FIG. 19 is a vertical cross-sectional view of an electric operating device for a circuit breaker according to another embodiment of the present invention in an ON state.

FIG. 20 is a front view of a conventional electric operating device for an open circuit breaker.

FIG. 21 is a cross-sectional view of an electric operating device in which a conventional circuit breaker is in an ON state.

FIG. 22 is a cross-sectional view of an electric operating device in which a conventional circuit breaker is in an off state.

FIG. 23 is a sectional view of the electric operating device showing a state in which the conventional circuit breaker has tripped from OFF.

FIG. 24 is a cross-sectional view of the electric operating device showing a state in which a conventional circuit breaker has tripped from ON.

FIG. 25 is a motor control circuit diagram of a conventional electric operating device in which a circuit breaker is on.

FIG. 26 is a motor control circuit diagram of a conventional electric operating device in which a circuit breaker is in an off state.

[Fig. 27] Fig. 27 is a motor control circuit diagram of the electric operating device in a state where the conventional circuit breaker has tripped from ON.

FIG. 28 is a diagram showing states of a cam position detector and a slider position detector corresponding to four states of a conventional circuit breaker.

[Explanation of symbols]

30: Open circuit breaker 31: Handle 32: Cam
33: Electric Motor 34: Cam Roller 35: Slider 35a: Opening 37: On Operation Side Cam Engagement Part 38: Off Operation Side Cam Engagement Part 41, 41b: Cam Position Detector 42: First Slider Position Detector 42b : Slider position detector 43: Second slider position detector 60, 61, 62, 107: Display means 63: Reset circuit

Claims (6)

[Claims] 1. A drive device driven by an operation signal,
ON position depending on whether the circuit breaker is on, tripping, or off,
It moves in conjunction with the handle of the circuit breaker in the trip position and the off position, and when the drive device is driven, the handle of the circuit breaker is moved by the drive device, and when the drive device is stopped, the handle or A slider that separates from the moving part of the drive device, a plurality of position detectors that detect the positions of the handle, the moving part of the drive device, and the slider, and the circuit breaker based on the outputs of the plurality of position detectors. Is on, trips from on,
An electric operating device for a circuit breaker, which is provided with a circuit for detecting whether it is in an off state, a trip state, or an off state. 2. A cam rotated by an electric motor driven by an operation signal, and a handle of the circuit breaker, which is turned on, tripped, or turned off depending on whether the circuit breaker is on, tripped, or off, are interlocked with each other. And move while engaging with the cam when the cam rotates,
A slider that separates from the cam when the cam is stopped,
The cam position detector for detecting the position of the cam, the slider position detector for detecting the position of the slider, the output of the cam position detector and the output of the slider position detector turn on and off the circuit breaker. An electric operating device for a circuit breaker, which is provided with a circuit for detecting whether it is in a trip state from off to a trip or off. 3. A cam which is rotated by an electric motor driven by an operation signal, and a handle of the circuit breaker which is turned on, tripped, or turned off depending on whether the circuit breaker is turned on, tripped, or turned off. And move while engaging with the cam when the cam rotates,
A slider that separates from the cam when the cam is stopped,
A first slider position detector for detecting the position of the slider, a second slider position detector for detecting the position of the slider, an output of the first slider position detector and the second slider position detection. An electric operating device for a circuit breaker, comprising: a circuit that detects whether the circuit breaker is in an on, trip, or off state from the output of the circuit breaker. 4. A cam that is rotated by an electric motor driven by an operation signal and a handle of the circuit breaker that is turned on, tripped, or turned off depending on whether the circuit breaker is on, trips, or off. And move while engaging with the cam when the cam rotates,
A slider that separates from the cam when the cam is stopped,
A cam position detector for detecting the rotational position of the cam, a first slider position detector for detecting the on position of the slider, and a second slider position detector for detecting the off position of the slider. An electric operating device for a circuit breaker characterized by the above. 5. A display for displaying the state of the circuit breaker being on, tripping, or off from the output of at least two position detectors, or the state of being on, tripping from trip, off from trip, or off. An electric operating device for a circuit breaker according to any one of claims 1 to 4, further comprising means. 6. A reset circuit which detects a trip state of a circuit breaker from outputs of at least two position detectors and which is activated by the detection, is provided. An electric operating device for a circuit breaker according to claim 1.