JP2022002174A - Operating device for circuit breaker, circuit breaker unit, and cabinet panel - Google Patents

Abstract

To provide a circuit breaker unit that effectively uses a limited width of a cabinet panel housing and can turn on and off a circuit breaker through a simple drive mechanism and drive control.SOLUTION: An operating device for a circuit breaker has a slide bar 61, a rotating panel 63, and a circuit breaker 5. The slide bar 61 has a pin moving hole 612a disposed on a front side, and has a lever moving hole 613a disposed on a rear side into which a lever 52 for turning on and off the circuit breaker is inserted. The rotating panel 63 has a pin 63a disposed at a position corresponding to the pin moving hole 612a of the slide bar. In association with the rotation in one direction of the rotating panel 63, the pin 63a is brought into contact with an outer peripheral edge of the pin moving hole 612a to cause the slide bar 61 to slide to the rear side, and thereby the lever 52 in contact with an outer peripheral edge of the lever moving hole 613a is pressed to the rear side to complete turning on the circuit breaker 5.SELECTED DRAWING: Figure 2

Description

INDUSTRIAL APPLICABILITY The present invention is a circuit breaker operating device provided with an electric circuit breaker electric opening / closing mechanism that can turn on and off a circuit breaker that shuts off energization when an overcurrent flows, both manually and remotely. , Circuit breaker unit and distribution board.

Conventionally, there is known an electric operation device 9 that is mounted side by side with a circuit breaker such as a circuit protector and can be remotely turned on and off as well as manually turned on and off. As shown in FIGS. 7 to 10, the electric operating device 9 of the circuit protector 100 is generally the same size as the one-pole circuit protector. Inside the electric operating device 9, the male screw 91 is rotated forward and reverse by the motor 92 to move the arm 93. When the arm drive unit base 94 comes to the uppermost part or the lowermost part by a forward rotation or reverse rotation signal, the arm moving metal fitting 981 reverses due to the action of the spring 982 and the positioning metal 983 and stops at the dog 96 of the limit switch 97 (for example, patent). Refer to Documents 1 and 2).

There are many types of distribution boards installed in the rack 101 equipped with fuses and circuit protectors installed for communication equipment used in data centers and other facilities, but the width of the distribution board housing 10 is limited. Therefore, the arrangement width W of the circuit breaker is limited, and the device connected to the circuit breaker needs to be configured as small as possible (see, for example, Patent Document 3).

Japanese Unexamined Patent Publication No. 60-172121 Japanese Unexamined Patent Publication No. 2002-190245 Japanese Unexamined Patent Publication No. 2012-221868

By the way, in the distribution board installed in the rack for communication equipment, the circuit breaker is used to perform the cutoff operation on the front side of the distribution board and the wiring on the back side. Further, as described above, the width of the distribution board housing is limited. Therefore, in order to increase the number of branches in the distribution board, it was necessary to reduce the width of the electric operating device.

Further, in the above-mentioned conventional electric operation device, the motor is connected to the male screw via a plurality of gears, and the arm is moved by rotating the motor in the forward and reverse directions and moving the arm drive base along the axial direction of the male screw. rice field. Therefore, the drive mechanism and drive control related to the arm drive are complicated. In addition, since the motor is rotated in the forward and reverse directions, the load on the motor becomes large, and there is a problem in the life of the motor.

Further, although the circuit protector is provided with a lock cover, the lock cover cannot be attached to the circuit protector equipped with the electric operating device. rice field.

The present invention has been made in view of the above points, and effectively utilizes the limited width of the distribution board housing, and inputs and disconnects the circuit breaker by a simple drive mechanism and drive control. It is an object of the present invention to provide a circuit breaker unit capable of providing a circuit breaker unit.

In order to achieve the above object, the circuit breaker operating device according to the present invention is
It has a slide bar and a rotating plate,
The slide bar is provided with a pin moving hole on the front side and a lever moving hole on the rear side for inserting a lever for inserting and blocking a circuit breaker.
Pins are arranged on the rotating plate at positions corresponding to the pin moving holes of the slide bar.
With the rotation of the rotating plate in one direction, the pin abuts on the outer peripheral edge of the pin moving hole, and the slide bar is slid rearward to move the lever abutting on the outer peripheral edge of the lever moving hole to the rear. Formed to push to the side,
As the rotating plate further rotates in the same direction, the pin abuts on the outer peripheral edge of the pin moving hole and slides the slide bar forward to abut on the outer peripheral edge of the lever moving hole. It is characterized in that it is formed so as to pull forward.

Further, the operating device of the circuit breaker according to the present invention is
It has a motor that drives the rotary plate to rotate and a limit switch that controls the power supply to the motor.
When the start signal of the motor is input, the pin abuts on the outer peripheral edge of the pin moving hole as the motor rotates the rotating plate in one direction from the stop position of the rotating plate, and the slide bar is moved. It is formed so as to push the lever abutting on the outer peripheral edge of the lever moving hole to the rear side to the closing end position by sliding it to the rear side.
When the front limit switch is disengaged, the power supply to the motor is cut off, and the rotating plate inertially rotates to the rotation stop position.
When the start signal of the motor is input again, the pin abuts on the outer peripheral edge of the pin moving hole and slides the slide bar forward as the motor further rotates the rotating plate in the same direction. As a result, the lever abutting on the outer peripheral edge of the lever moving hole is formed so as to be pulled forward to the shutoff end position.

Further, in order to achieve the above object, the circuit breaker unit according to another embodiment of the present invention may be used.
It has a slide bar, a rotating plate, and a circuit breaker.
The slide bar is provided with a pin moving hole on the front side and a lever moving hole on the rear side into which a lever for inserting and blocking the circuit breaker is inserted.
Pins are arranged on the rotating plate at positions corresponding to the pin moving holes of the slide bar.
As the rotating plate rotates in one direction, the pin abuts on the outer peripheral edge of the pin moving hole and slides the slide bar to the rear side, so that the lever abutting on the outer peripheral edge of the lever moving hole is moved to the rear side. Press to complete the circuit breaker input,
As the rotating plate further rotates in the same direction, the pin abuts on the outer peripheral edge of the pin moving hole and slides the slide bar forward to abut on the outer peripheral edge of the lever moving hole. Is characterized by pulling forward to complete the break of the circuit breaker.

Further, the circuit breaker unit of the present invention is
It has a motor that rotates the rotating plate and a limit switch that controls the power supply to the motor.
When the start signal of the motor is input, the motor starts feeding by rotating the rotating plate in one direction from the stop position of the rotating plate, and the slide bar pushes the lever rearward to the closing end position. Complete the input,
When the front limit switch is disengaged, the power supply to the motor is cut off, and the rotating plate inertially rotates to the rotation stop position.
When the start signal of the motor is input again, the motor further rotates the rotating plate in the same direction, and the slide bar pulls the lever forward to the shutoff end position to complete the shutoff. And.

Further, in order to achieve the above object, the distribution board according to the present invention has a slide bar, a rotating plate, and a circuit breaker.
The slide bar is provided with a pin moving hole on the front side and a lever moving hole on the rear side into which a lever for inserting and blocking a circuit breaker is inserted.
The rotating plate rotated by the rotating plate driving means has pins arranged at positions corresponding to the pin moving holes of the slide bar.
As the rotating plate rotates in one direction, the pin abuts on the outer peripheral edge of the pin moving hole and slides the slide bar to the rear side, so that the lever abutting on the outer peripheral edge of the lever moving hole is moved to the rear side. Press to complete the loading,
As the rotating plate further rotates in the same direction, the pin abuts on the outer peripheral edge of the pin moving hole and slides the slide bar forward to abut on the outer peripheral edge of the lever moving hole. It is characterized in that a plurality of circuit breaker units are provided side by side in the width direction to complete the cutoff by pulling the front side.

Further, the distribution board of the present invention is
It has a motor constituting the rotary plate driving means of the present invention and a limit switch for controlling power supply to the motor.
When the start signal of the motor is input, the motor starts feeding by rotating the rotating plate in one direction from the stop position of the rotating plate, and the slide bar pushes the lever rearward to the closing end position. Complete the input,
When the front limit switch is disengaged, the power supply to the motor is cut off, and the rotating plate inertially rotates to the rotation stop position.
When the start signal of the motor is input again, the motor causes the rotating plate to rotate in the same direction, and the slide bar pulls the lever forward to the breaking end position to complete the breaking. The feature is that a plurality of units are arranged side by side in the width direction.

According to the present invention, the limited width of the distribution board housing can be effectively utilized, and the circuit breaker can be turned on and off by a simple drive mechanism and drive control.

It is a schematic perspective view which shows the structure of the distribution board provided with the circuit breaker unit which concerns on this embodiment. It is a figure which shows the structural example of the circuit breaker unit which concerns on this embodiment. It is a figure explaining the operation example of the circuit breaker unit which concerns on this embodiment. It is a side view explaining the operation example of the circuit breaker unit which concerns on this embodiment. It is a figure which shows an example of the drive circuit of the motor which concerns on this embodiment. It is a figure which shows the perspective view of the state which the circuit breaker unit which concerns on this embodiment is mounted on a distribution board. It is a perspective view which shows the configuration example in which the electric operation device and the circuit breaker are arranged side by side in parallel with the conventional type. It is an exploded plan view which shows the internal structure example of the conventional electric operation apparatus. It is an exploded rear view which shows the example of the internal structure of the conventional electric operation device. It is a figure which shows the arm drive base of the conventional electric operation apparatus. It is a front view which shows the configuration example of the rack which installed the distribution board. It is a front view of the distribution board shown in FIG.

Hereinafter, embodiments of the present invention will be described.

[Configuration of distribution board with circuit breaker unit]
FIG. 1 is a schematic perspective view showing a configuration of a distribution board provided with a circuit breaker unit according to the present embodiment.

As shown in FIG. 1, a plurality of circuit breaker units 1 are arranged side by side in the distribution board housing 10. Each circuit breaker unit 1 includes a circuit breaker mechanism that cuts off the energization when an overcurrent flows, and a circuit breaker operation mechanism that turns on and off the circuit breaker mechanism. Details of each mechanism will be described later with reference to FIGS. 2 and 3.

As described above, the conventional electric operation device has the same size as the one-pole circuit breaker. That is, when one circuit breaker is arranged in the distribution board housing 10, a space for arranging the electric operation device having the same width is further required. On the other hand, the circuit breaker unit 1 according to the present embodiment has a configuration in which a circuit breaker mechanism and an electric operation mechanism are combined by utilizing the space in the front-rear direction of the distribution board housing 10. Therefore, the limited width of the distribution board housing 10 with many restrictions in the width direction and few restrictions in the front-rear direction can be effectively utilized.

[Circuit breaker unit configuration example]
FIG. 2 is a diagram showing a configuration example of the circuit breaker unit according to the present embodiment. FIG. 2A is a front view of the circuit breaker unit 1. FIG. 2B is a right side view of the circuit breaker unit 1. FIG. 2C is a top view of the circuit breaker unit 1.

The circuit breaker unit 1 shown in FIG. 2 has a vertically long rectangular front plate 2, a flat plate-shaped substrate 3 extending vertically from the back surface of the front plate 2, and horizontally extending in the width direction above the substrate 3. A circuit breaker that is attached to a flat plate-shaped support plate 4 to be installed, a circuit breaker 5 as a circuit breaker that cuts off energization when an overcurrent flows, and a circuit breaker that performs a circuit breaker operation by the circuit breaker 5. It is provided with an electric operation unit 6 or the like as an operation device.

As shown in FIG. 2A, various devices such as a rotary cord switch 21, voltage measuring terminals 22a and 22b, an indicator lamp 23, and a fuse holder 24 are arranged on the front plate 2. Further, in the upper center of the front plate 2, a horizontally long guide hole 2a through which a slide bar 61 described later can be inserted back and forth is formed.

As shown in FIGS. 2 (b) and 2 (c), a flat plate-shaped support plate 4 is horizontally extended in the width direction of the front plate 2 on the substrate 3 at a position slightly below the slide bar 61. ..

The circuit cutoff portion 5 is, for example, a circuit protector including a main body portion 51 having a rectangular side view and a lever 52 attached upward on the upper portion of the main body portion 51. The circuit breaker 5 is arranged at the rear upper portion of the circuit breaker unit 1. The lever 52 is arranged above the circuit breaker unit 1 so as to be able to tilt in the front-rear direction.

When a current below the rated value is energized, the main body 51 is energized with the lever 52 in the ON position, and in the example shown in FIG. 2B, in a state where the lever 52 is tilted to the right. When an overcurrent is energized, the lever 52 is moved to the OFF position, or in the example shown in FIG. 2B, to a position where the lever 52 is tilted to the left side to cut off the energization. Since the built-in circuit cutoff mechanism is known, the description thereof is omitted here. The lever 52 is an operation lever capable of switching ON / OFF of the circuit breaker mechanism inside the main body 51 by tilting the circuit breaker unit 1 in the front-rear direction.

The electric operation unit 6 includes a slide bar 61, a motor 62, a rotary plate 63, a limit switch 64, a guide pin 65, and the like. The electric operation unit 6 turns on and off the circuit cutoff unit 5 both manually and remotely.

The slide bar 61 is a plate-like body in which the tip portion 611 is inserted into the guide hole 2a of the front plate 2 and can move back and forth in the direction perpendicular to the front plate 2. As shown in FIG. 2 (c), the tip portion 611 is formed with a width length L1 enough to pass through the guide hole 2a. Behind the tip portion 611, the width length L2 is slightly longer than the width length L1. Has been done.

A pin moving hole 612a that penetrates up and down is formed in the upper portion 612. The pin moving hole 612a abuts on the outer peripheral edge of the pin moving hole 612a and moves the slide bar 61 in the front-rear direction when the pin 63a included in the rotating plate 63 rotates with the rotation of the rotating plate 63. It is a thing. The pin moving hole 612a is formed by combining two quadrangular through holes arranged point-symmetrically. Further, a lever moving hole 613a and a guide pin moving hole 613b penetrating vertically are formed in the rear end portion 613 of the slide bar 61. The lever moving hole 613a allows the lever 52 to move back and forth through the lever 52. The guide pin moving hole 613b is a through hole formed so as to extend in the front-rear direction, and the guide pin 65 is inserted through the guide pin moving hole 613b to fix the slide bar 61.

The motor 62 is a motor with a speed reducer, which is arranged in front of the circuit breaker unit 1 and on the back surface of the support plate 4 to rotate the rotary plate 63. The motor 62 is driven based on a drive start instruction or the like from a remote device (not shown), and is rotationally driven in only one direction (for example, a forward rotation direction). An example of the drive circuit of the motor 62 will be described later with reference to FIG.

The rotary plate 63 is a plate-shaped body formed by alternately combining a pair of short-diameter fan-shaped portions and a pair of long-diameter fan-shaped portions in the circumferential direction. The rotating plate 63 is arranged on the upper surface of the support plate 4 and is driven by a motor 62 to rotate. Further, in the fan-shaped portion having a major axis, one pin 63a, which is a protrusion, is fixedly installed at a radial position having a minor axis length.

The limit switch 64 is an electric switch for detecting the rotational position of the rotary plate 63. The guide pin 65 is a pin that is inserted into the guide pin moving hole 613b to push and pull the lever 52.

As described above, the circuit breaker unit 1 according to the present embodiment has a circuit breaker 5 that cuts off energization when an overcurrent flows, and an electric operation unit 6 that turns on and off the circuit breaker 5. It is a configuration that also has.

[Operation example of circuit breaker unit]
FIG. 3 is a diagram for explaining an operation example of the circuit breaker unit according to the present embodiment. Further, FIG. 4 is a configuration diagram showing an operation example of the circuit breaker unit corresponding to the operation example of FIG. 3, in which the slide bar 61 and the lever 52 are represented by solid lines and their operation trajectories are represented by broken lines.

The operation of the electric operation unit 6 from the closing to the breaking of the circuit breaker 5 will be described with reference to FIG. For convenience of explanation, each of FIGS. 3A to 3F shows a view of the slide bar 61 as viewed from above.

FIG. 3A shows a state in which the circuit cutoff unit 5 cuts off the energization, that is, a state in which the lever 52 is tilted forward (downward in the figure). At this time, the tip portion 611 of the slide bar 61 protrudes forward from the front plate 2 (downward in FIG. 3A). In the rotary plate 63, the pin 63a is arranged on the tip end portion 611 side, and a pair of major circular diameter portions are arranged in the axial direction of the slide bar 61.

In the state shown in FIG. 3A, when a drive start signal is input to the motor 62 (not shown in FIG. 3), the motor 62 and the rotary plate 63 attached to the motor 62 start rotating clockwise, and FIG. The state shifts to the state shown in b).

FIG. 3B shows a state in which the circuit cutoff unit 5 starts charging. Similar to FIG. 3A, the lever 52 is tilted forward, and the tip portion 611 of the slide bar 61 protrudes forward from the front plate 2. On the other hand, when the pin 63a provided on the rotating plate 63 abuts on the side edge of the pin moving hole 612a and further rotates, the slide bar 61 starts to be pushed up backward. After that, the state shifts to the state shown in FIG. 3 (c).

FIG. 3C shows a state in which the circuit cutoff unit 5 has finished charging. At this time, the lever 52 is tilted backward, and the tip portion 611 of the slide bar 61 protrudes slightly forward from the front plate 2 and cannot be pushed in any further. The pin 63a moves to the right end of the side edge of the pin moving hole 612a abutted in FIG. 3 (b). After that, when the limit switch 64 is disengaged, the power supply to the motor 62 is cut off, and the rotary plate 63 is further rotated by inertia to shift to the state shown in FIG. 3 (d).

FIG. 3D shows a state in which the rotary plate 63 is stopped after the circuit cutoff portion 5 is turned on. Similar to FIG. 3C, the lever 52 is tilted backward, and the tip portion 611 of the slide bar 61 protrudes slightly forward from the front plate and cannot be pushed any further. In the rotary plate 63, the pin 63a is arranged on the rear end portion 613 side, and a pair of major circular diameter portions are arranged in the axial direction of the slide bar 61.

In the state shown in FIG. 3D, when a drive start signal is further input to the motor 62 (not shown in FIG. 3), the motor 62 and the rotary plate 63 attached to the motor 62 start rotating clockwise, and FIG. The state shifts to the state shown in (e).

FIG. 3 (e) shows a state in which the circuit cutoff unit 5 starts breaking. Similar to FIG. 3D, the lever 52 is tilted backward, and the tip portion 611 of the slide bar 61 protrudes slightly forward from the front plate and cannot be pushed in any further. On the other hand, when the pin 63a provided on the rotating plate 63 abuts on the side edge of the pin moving hole 612a (the side edge at a position point-symmetrical to the side edge described with reference to FIG. 3B) and further rotates, the pin 63a slides. Start pushing down the bar 61 forward. After that, the state shifts to the state shown in FIG. 3 (f).

FIG. 3 (f) shows a state in which the circuit breaker 5 has finished breaking. At this time, the lever 52 is tilted forward, and the tip portion 611 of the slide bar 61 is in a state of protruding forward from the front plate 2. The pin 63a provided on the rotating plate 63 moves to the left end of the side edge abutted in FIG. 3 (e). After that, when the limit switch 64 is disengaged, the power supply to the motor 62 is cut off, and the rotary plate 63 is further rotated by inertia to shift to the state shown in FIG. 3A.

[Example of motor drive circuit]
FIG. 5 is a diagram showing an example of a motor drive circuit according to the present embodiment.

As shown in FIG. 5, the drive circuit 7 around the motor 62 has a configuration including a start switch 71, relays 72 and 73, a power supply 69, a limit switch 64, and a motor 62.

When the start switch 71 is momentarily pressed based on a drive start instruction from a remote device (not shown), the motor 62 is self-held by the relay 73 and starts rotating, and then rotates until the limit switch 64 is pressed and released again. Continue and stop.

As described above with reference to FIGS. 3 to 5, in the circuit breaker unit 1 according to the present embodiment, the circuit breaker unit 5 is based on the rotation of the motor 62 included in the electric operation unit 6 in the same direction. Switching between turning on and off. As a result, the load on the motor 62 is reduced as compared with the case where the motor 62 is rotated in the forward and reverse directions, and the life of the motor 62 can be extended.

Further, the pin 63a provided on the rotating plate 63 moves the slide bar 61 in the front-rear direction based on the rotation of the motor 62 in one direction, and is connected to the slide bar 61 via the lever moving hole 613a. With a simple drive mechanism that tilts the lever 52 in the front-rear direction, it is possible to turn on and off the circuit breaker 5. Further, as described with reference to FIG. 3, since the on and off can be repeated with the same signal, the on and off to the circuit cutoff unit 5 can be performed by simple drive control.

Further, as shown in FIG. 6, in the circuit breaker unit 1, an electric operation unit 6 as an operation device of the circuit breaker and a circuit breaker 5 as a circuit breaker are arranged in the depth direction to form a rotary plate 63. By operating the lever 52 of the circuit breaker 5 by changing the rotational drive of the slide bar 61 to the movement in the front-rear direction, the distribution board housing 10 having many restrictions in the width direction and few restrictions in the front-rear direction is limited. The width can be used effectively.

Further, in the circuit breaker unit 1 according to the present embodiment, the lever 52 of the circuit breaker 5 is not exposed to the outside, and the lever 52 is tilted in the front-rear direction by pushing and pulling the slide bar 61 against the front plate 2. It is possible to move it. Therefore, it is not necessary to prepare a lock cover for preventing erroneous blocking as in the conventional case, and it is possible to prevent erroneous blocking by a falling object.

In the description according to FIG. 3, the slide bar 61 may be manually operated in the state shown in FIGS. 3 (a) and 3 (d). As a result, it is possible to manually input and disconnect the circuit cutoff unit 5.

Although one embodiment of the present invention has been described above, the above embodiment shows one of the application examples of the present invention, and the purpose is to limit the technical scope of the present invention to the specific configuration of the above embodiment. is not it.

1 Circuit breaker unit 2 Front plate 5 Circuit breaker (circuit breaker)
6 Electric operation unit (circuit breaker operation device)
7 Drive circuit 52 Lever 61 Slide bar 62 Motor 63 Rotating plate 64 Limit switch

Claims (6)

It has a slide bar and a rotating plate,
The slide bar is provided with a pin moving hole on the front side and a lever moving hole on the rear side for inserting a lever for inserting and blocking a circuit breaker.
Pins are arranged on the rotating plate at positions corresponding to the pin moving holes of the slide bar.
With the rotation of the rotating plate in one direction, the pin abuts on the outer peripheral edge of the pin moving hole, and the slide bar is slid rearward to move the lever abutting on the outer peripheral edge of the lever moving hole to the rear. Formed to push to the side,
As the rotating plate further rotates in the same direction, the pin abuts on the outer peripheral edge of the pin moving hole and slides the slide bar forward to abut on the outer peripheral edge of the lever moving hole. A circuit breaker operating device characterized in that it is formed so as to pull forward. It has a motor that drives the rotary plate to rotate and a limit switch that controls the power supply to the motor.
When the start signal of the motor is input, the pin abuts on the outer peripheral edge of the pin moving hole as the motor rotates the rotating plate in one direction from the stop position of the rotating plate, and the slide bar is moved. It is formed so as to push the lever abutting on the outer peripheral edge of the lever moving hole to the rear side to the closing end position by sliding it to the rear side.
When the front limit switch is disengaged, the power supply to the motor is cut off, and the rotating plate inertially rotates to the rotation stop position.
When the start signal of the motor is input again, the pin abuts on the outer peripheral edge of the pin moving hole and slides the slide bar forward as the motor further rotates the rotating plate in the same direction. The circuit breaker operating device according to claim 1, wherein the lever abutting on the outer peripheral edge of the lever moving hole is formed so as to be pulled forward to the breaking end position. It has a slide bar, a rotating plate, and a circuit breaker.
The slide bar is provided with a pin moving hole on the front side and a lever moving hole on the rear side into which a lever for inserting and blocking the circuit breaker is inserted.
Pins are arranged on the rotating plate at positions corresponding to the pin moving holes of the slide bar.
As the rotating plate rotates in one direction, the pin abuts on the outer peripheral edge of the pin moving hole and slides the slide bar to the rear side, so that the lever abutting on the outer peripheral edge of the lever moving hole is moved to the rear side. Press to complete the circuit breaker input,
As the rotating plate further rotates in the same direction, the pin abuts on the outer peripheral edge of the pin moving hole and slides the slide bar forward to abut on the outer peripheral edge of the lever moving hole. A circuit breaker unit characterized in that the circuit breaker is completed by pulling the circuit breaker forward. It has a motor that drives the rotary plate to rotate and a limit switch that controls the power supply to the motor.
When the start signal of the motor is input, the motor starts feeding by rotating the rotating plate in one direction from the stop position of the rotating plate, and the slide bar pushes the lever rearward to the closing end position. Complete the input,
When the front limit switch is disengaged, the power supply to the motor is cut off, and the rotating plate inertially rotates to the rotation stop position.
When the start signal of the motor is input again, the motor further rotates the rotating plate in the same direction, and the slide bar pulls the lever forward to the shutoff end position to complete the shutoff. 3. The circuit breaker unit according to claim 3. It has a slide bar, a rotating plate, and a circuit breaker.
The slide bar is provided with a pin moving hole on the front side and a lever moving hole on the rear side into which a lever for inserting and blocking a circuit breaker is inserted.
The rotating plate rotated by the rotating plate driving means has pins arranged at positions corresponding to the pin moving holes of the slide bar.
As the rotating plate rotates in one direction, the pin abuts on the outer peripheral edge of the pin moving hole and slides the slide bar to the rear side, so that the lever abutting on the outer peripheral edge of the lever moving hole is moved to the rear side. Press to complete the loading,
As the rotating plate further rotates in the same direction, the pin abuts on the outer peripheral edge of the pin moving hole and slides the slide bar forward to abut on the outer peripheral edge of the lever moving hole. A distribution board characterized by having multiple circuit breaker units installed in the width direction to complete the cutoff by pulling the front side. It has a motor that drives the rotary plate to rotate and a limit switch that controls the power supply to the motor.
When the start signal of the motor is input, the motor starts feeding by rotating the rotating plate in one direction from the stop position of the rotating plate, and the slide bar pushes the lever rearward to the closing end position. Complete the input,
When the front limit switch is disengaged, the power supply to the motor is cut off, and the rotating plate inertially rotates to the rotation stop position.
When the start signal of the motor is input again, the motor causes the rotating plate to rotate in the same direction, and the slide bar pulls the lever forward to the cutoff end position to complete the cutoff. The distribution board according to claim 5, wherein a plurality of units are arranged side by side in the width direction.

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