JP2002216595A - Operation device for switch - Google Patents

Abstract

PROBLEM TO BE SOLVED: To shorten the time from closing to the next opening of the switch contact points. SOLUTION: In the device, three levers which are; a first shut off lever 52 which is connected to the switch contact point 10 and imparted torque in the counterclockwise direction by a torsion bar 34 for open-circuit, a second shut off lever 55 which is connected to the first shut off lever 52 through a link device 47 and an switch in lever 76 imparted torque in the clockwise direction by the torsion bar 35 for a closed circuit through a lever 110, are supported to be able to rotate by a main shaft 51. In this case, a guide 62 to guide a rotating body 59 that is provided in a connecting part 47 by an arc surface 62a, a first trip latch 69 to latch the guide 62 and a second trip latch 67 to latch the second shut off lever 55 are provided and the guide 62 is latched by the first trip latch 69 when the open-circuit is completed, that is before the next action of closing the circuit. The next action to open the circuit can be immediately started without waiting for the latching of the guide 62 by the first trip latch 69 after the circuit is closed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for operating a switch such as a circuit breaker installed in a substation or a switchyard.

[0002]

2. Description of the Related Art As an operating force of an operating device of a circuit breaker as a switch, a device utilizing a spring force has been put to practical use.
FIGS. 70 to 73 show a conventional circuit breaker operating device disclosed in, for example, JP-A-63-304542.
FIG. 70 is a perspective view showing the configuration of the operating device of the circuit breaker.
FIG. 71 is a main part configuration diagram of the operating device of the circuit breaker, showing a state in which the circuit breaker is in a closed state, and both the breaking and closing torsion bars are energized.

[0003] Fig. 72 is a configuration diagram of a main part of an operating device for a circuit breaker, in which the circuit breaker is in an open state, a torsion bar for opening is released, and a torsion bar for closing is charged. FIG. 73 is a main part configuration diagram of a circuit breaker operating device,
This shows a state in which the circuit breaker is in the closed state, the open-circuit torsion bar is charged, and the closed-circuit torsion bar is released.

In these figures, 1 is a housing, 24 is a cylinder fixed to the housing 1, and 26 and 27 are fitted to pins (not shown) provided on the end face of the cylinder 24 to rotate. A possible lever. 28 and 34 are torsion bars for opening, 2
9, 35 are torsion bars for closing. The opening torsion bar 28 has one end fixed to the housing 1 and the other end fixed to the lever 26. One end of the torsion bar 34 for opening is fixed to the rotating shaft 32 (see FIG. 71).
The other end is fixed to the lever 26.

The closing torsion bar 29 has one end fixed to the housing 1 and the other end fixed to the lever 27.
One end of the torsion bar 35 for closing is fixed to the rotating shaft 33 (see FIG. 71), and the other end is fixed to the lever 27. Although the details will be described later, the torsion bar 2 for closing is stored while accumulating the torsion bars 28 and 34 for opening.
9 and 35 are released, so the torsion bar 2 for opening
The stored energy of the torsion bars 29, 35 for closing is larger than that of 8, 34.

Reference numeral 37 denotes a closing lever fixed to the rotating shaft 33. The closing lever 37 is provided with torsion bars 29 and 35 for closing.
In FIG. 71, a counterclockwise rotational force is provided. Reference numeral 2 denotes a cam shaft supported by the housing 1, reference numeral 3 denotes a cam mounted on the cam shaft 2, reference numeral 13 denotes a second pin provided on the cam, and reference numeral 14 denotes a closing latch engaged with the second pin 13. Reference numeral 15 denotes a closing trigger engaged with the closing latch 14, 16
Is a closing electromagnet having a plunger 17.

Reference numeral 38 denotes a rotating shaft supported by the housing 1,
It is driven counterclockwise by a motor (not shown). 39 is a small gear fixed to the rotating shaft 38, 40 is a large gear fixed to the camshaft 2 and configured to mesh with the small gear 39, and in a state where the torsion bars 29, 35 for closing are stored. At this time, some teeth are missing so that the meshing with the small gear 39 is disengaged. 41 is a closing lever 37 and a large gear 4
This is a link connecting 0 and 0.

Reference numeral 36 denotes a shut-off lever fixed to the rotating shaft 32, which is configured so that a counterclockwise rotating force is applied by the torsion bars 28, 34 for opening.
Reference numerals 8 and 9 denote a first pin and a rotating body provided on the shut-off lever 36. Reference numeral 18 denotes a release latch, which engages with the first pin 8 and is provided with a clockwise rotational force by a spring 43.

Reference numeral 19 denotes a tripping trigger engaged with the tripping latch 18, and 20 denotes a tripping electromagnet having a plunger 21. Reference numeral 22 denotes a movable contact of the circuit breaker.
3 is connected to the shut-off lever 36. Reference numeral 42 denotes a shock absorber connected to the shut-off lever 36, and the movable contact 2
The shock at the time of opening / closing operation 2 is reduced.

Next, the opening operation will be described. The breaking lever 36 is always provided with a counterclockwise rotational force by the torsion bars 28 and 34 for opening, and the rotational force is held by the latch 18 and the trip trigger 19. When the trip electromagnet 20 is excited in this state, the plunger 21 moves rightward, the trip trigger 19 rotates clockwise, and the trip latch 18 is turned counterclockwise by the reaction force from the first pin 8. Rotate in the direction. When the trip latch 18 is disengaged from the first pin 8, the shut-off lever 36 rotates counterclockwise, and the movable contact 22 is driven in the opening direction. FIG. 72 shows this open circuit operation completion state.

The closing operation is performed as follows. In FIG. 72, the cam 3 is connected to the closing lever 37 via the camshaft 2, the large gear 40, and the link 41, and a clockwise rotational force is given by the torsion bars 29, 35 for closing. The rotational force is applied to the closing latch 14 and the closing trigger 15.
It is held by.

When the closing electromagnet 16 is excited in this state, the plunger 17 moves rightward, and the closing trigger 15
Rotates clockwise, and the closing latch 14 rotates counterclockwise due to the reaction force from the second pin 13. Closing latch 1
4 is disengaged from the second pin 13 and the cam 3 rotates clockwise to push up the rotating body 9 provided on the shut-off lever 36, so that the shut-off lever 36 is opened by the torsion bar 28 for opening.
It is driven while twisting 34 clockwise.

When the shut-off lever 36 is rotated by a predetermined angle and the movable contact 22 is driven in the closing direction, the tripping latch 1 is turned on.
8 and the first pin 8 are engaged, and the trip trigger 19 and the trip latch 18 are engaged. While rotating, the cam 3 holds the shut-off lever 36 via the rotating body 9 until the engagement between the tripping latch 18 and the first pin 8 and the tripping trigger 19 and the tripping latch 18 are stabilized. Contact with 9 is released. FIG. 73 shows a state where the closing operation is completed and the first pin 8 is tripped and held by the latch 18. In addition, as a duty of operation of the operating device of the circuit breaker, there is a re-opening operation immediately after the closing operation, which is an operation of opening the circuit from the state of FIG.

The charging operation of the torsion bars 29, 35 for closing is performed as follows. As shown in FIG. 73, immediately after the closing operation is completed, the torsion bars 29 and 35 for closing are in a released state. When the small gear 39 rotates counterclockwise by a motor (not shown), the large gear 40 rotates clockwise, and the link 41, the closing lever 37, and the rotating shaft 33 are rotated.
, The closing torsion bars 29, 35 are charged.

At a position where the tensile load direction of the link 41 exceeds a dead point at which the link 41 intersects the center of the camshaft 2, the camshaft 2 is moved by the force of the torsion bars 29, 35 for closing.
At the same time that the clockwise rotational force is applied via 1, the small gear 39 and the large gear 40 are disengaged because some teeth of the large gear 40 are missing. Latch 1 is applied to second pin 13
4 is engaged, the clockwise rotational force of the large gear 40 due to the force of the torsion bars 29, 35 for closing is held, and the energy storing operation is completed. Thus, the state returns to the state shown in FIG. 71 again.

[0016]

In the conventional circuit breaker operating device as described above, the shut-off lever 36 is rotated clockwise by the cam 3 shown in FIG. 72, and the movable contact 22 is driven in the closing direction. . When the shut-off lever 36 rotates a predetermined angle, the tripping latch 18 and the first pin 8 are engaged, and the tripping trigger 19 and the tripping latch 18 are engaged.
While still rotating, the cam 3 holds the shut-off lever 36 via the rotating body 9 until the engagement of the tripping latch 18 with the first pin 8 and the tripping trigger 19 with the tripping latch 18 is stabilized, Thereafter, the contact with the rotating body 9 is released.

As described above, the engagement between the tripping latch 18 and the first pin 8 and the engagement between the tripping trigger 19 and the tripping latch 18 tend to cause a repulsive motion, and the cam is held until the repulsion stops and the engagement is stabilized. 3 must be held. Since the opening operation cannot be performed during the holding by the cam 3, there is a problem that the time is shortened until the next opening operation is started.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problem, and has as its object to provide a switch operating device capable of shortening the time from the closing of a circuit to the start of the next opening operation. It is another object of the present invention to provide a circuit breaker operating device that can be reduced in size by reducing the number of parts and preventing the occurrence of mechanical impact.

[0019]

In order to achieve the above object, in a switch operating device according to the present invention, a first shut-off lever rotatably supported by a support structure and connected to an on-off contact, An open-circuit accumulating means for urging the first shut-off lever to rotate in a predetermined direction, a first and second link, and a connecting portion for connecting the first and second links in a bendable manner; A link device having one link connected to the first shut-off lever, a second shut-off lever rotatably supported by the support structure and connected to the second link;
A closing lever rotatably supported by the support structure and removably connected to the second shut-off lever, a closing energy storage means for urging the closing lever to rotate in a direction opposite to a predetermined direction, and a closing lever. A closing latch for locking, a guide movably supported by the support structure and having a guide surface for guiding the connecting portion while contacting the connecting portion, a first release latch for locking the guide, and a guide interlocked with the guide; A second release latch for locking the second shut-off lever, and when the guide is released from the first release latch, the guide is pushed by the connecting portion and moves to interlock with the guide. The release of the second blocking lever by the release latch is released, and the first blocking lever is rotationally driven in a predetermined direction by the release of the opening energy storage means to open and close the on-off contact and the first blocking lever. Is rotated by a specified angle in a specified direction. Is locked again by the first release latch, and when the closing of the closing lever by the closing latch is released, the second shut-off lever is reversed in the predetermined direction via the closing lever by the release of the closing energy storing means. Driven in the first direction via the link device, and the connecting portion is guided by the guide surface of the guide locked by the first release latch, while the first portion is guided by the first release latch.
By rotating the shut-off lever in the opposite direction to the predetermined direction to close the on-off contact and to accumulate the energy for the open circuit, the second shut-off lever is locked by the second tripping latch. The power storage state of the open-circuit power storage means and the closed state of the on-off contact are maintained. The guide is locked by the first release latch when the first breaking lever rotates by a predetermined angle in a predetermined direction at the time of opening / closing of the on / off contact, that is, the guide is already in the first release before the next closing operation. Since the latch is engaged, the first
The opening operation can be started immediately without waiting for the release latch of the first to lock the guide.

An open-circuit operation preventing member is provided which interlocks with the rotation of the closing lever or the first shut-off lever to prevent the first trip latch from operating during the closing operation of the on-off contact. I do. By preventing the first release latch from being operated inadvertently in the course of closing the circuit and releasing the lock of the guide by the opening operation preventing member, the lock of the guide is released during the closing operation and the support of the connecting portion is supported. The first shut-off lever, which is lost and is rotationally driven in a predetermined direction by the open-circuit accumulating means, and the second shut-off lever, which is rotationally driven in a direction opposite to the predetermined direction by the closing lever during the closing operation, collides. As a result, there is no possibility that a large impact is generated.

Further, a trip trigger is rotatably provided on the support structure member, and by rotating the trip trigger, the locking of the guide by the first trip latch is released. The trip trigger is moved in conjunction with the rotation of the closing lever or the first shut-off lever to prevent the trip trigger from rotating during the closing operation of the on-off contact. With such a simple configuration, it is possible to prevent the first release latch from rotating during the closing operation and releasing the lock of the guide by the first release latch.

Further, a closing operation preventing member is provided which interlocks with the rotation of the first shut-off lever and prevents the closing latch from operating in the closed state of the on-off contact. The closing latch can be prevented from operating by mechanically interlocking the closing operation preventing member with the rotation of the first shut-off lever. Therefore, when both the open-circuit energy storing means and the closed-circuit energy storing means are in the charged state, the engagement of the closing lever by the closing latch is released, and the closing lever and the second shut-off lever collide. It is possible to prevent the occurrence of a large impact by preventing the occurrence of a large impact.

A closing trigger is rotatably provided on the supporting structure member, and by rotating the closing trigger, the locking of the closing lever by the closing latch is released. It is characterized in that it moves in conjunction with the rotation of the lever and prevents the closing trigger from rotating in the closed state of the open / close contact.
With this simple configuration, it is possible to prevent the closing trigger from rotating and the closing of the closing lever by the closing latch being released in the closed state of the on-off contact.

Further, an opening prevention member is provided to prevent the first trip latch from operating during the closing operation of the on / off contact in conjunction with the rotation of the closing lever or the first interruption lever. It is characterized in that a closing operation preventing member is provided to prevent the closing latch from operating in the closed state of the on-off contact in conjunction with the rotation. By preventing the first release latch from being operated inadvertently in the course of closing the circuit and releasing the lock of the guide by the opening operation preventing member, the lock of the guide is released during the closing operation and the support of the connecting portion is supported. The first shut-off lever, which is lost and is rotationally driven in a predetermined direction by the open-circuit accumulating means, and the second shut-off lever, which is rotationally driven in a direction opposite to the predetermined direction by the closing lever during the closing operation, collides. As a result, there is no possibility that a large impact is generated. Further, the closing latch can be prevented from operating by mechanically interlocking the closing operation preventing member with the rotation of the first shut-off lever. Therefore, when both the energy storage means for opening and the energy storage means for closing are in the state of being charged, the locking of the closing lever by the closing latch is released, and the closing lever and the second closing lever are released.
By preventing collision with the shut-off lever, a large impact can be prevented.

Further, the tripping trigger and the closing trigger are rotatably provided on the supporting structure member, and by rotating the tripping trigger, the locking of the guide by the first tripping latch is released and the closing trigger is rotated. To release the locking of the closing lever by the closing latch.
The opening operation preventing member moves in conjunction with the rotation of the closing lever or the first interrupting lever to prevent the trip trigger from rotating during the closing operation of the on-off contact, and the closing operation preventing member includes the first interrupting lever. The closing trigger is moved in conjunction with the rotation of the switch so that the closing trigger does not rotate in the closed state of the open / close contact. With such a simple configuration, the first release latch rotates during the closing operation to release the lock of the guide by the first release latch, or the closing trigger rotates when the open / close contact is closed. By preventing the locking of the closing lever by the closing latch from being released, it is possible to prevent a large impact from being generated.

Further, when the locking of the guide by the first release latch is released during the release of the closing energy storage means or when the closing energy storage means is in the released state, the closing energy storage means is released. A stopper for receiving the releasing force of the energy storage means is provided. Even if the blocking member is provided, it is possible to open the circuit immediately after the completion of the closing operation. It can prevent the occurrence of a shock.

The energy storage means for opening and closing the circuit is:
A torsion bar. By using the torsion bar, it is possible to realize an energy storing means which is energy efficient and has no stress concentration.

Further, the energy storing means for opening and closing the circuit is
It is a coil spring. By using a coil spring, compact energy storage means can be realized.

The first and second shut-off levers are rotatably supported on the same support shaft provided on the support structure. Since it is not necessary to support each shut-off lever individually, the number of parts is reduced and the structure is simplified.

The second shut-off lever and the closing lever are rotatably supported on the same support shaft provided on the support structure. Since the second shut-off lever and the closing lever do not need to be individually supported, the number of parts is reduced, and the structure is simplified.

Further, the first shut-off lever, the second shut-off lever, and the closing lever are rotatably supported by the same support shaft provided on the support structure. Since the first shut-off lever, the second shut-off lever and the closing lever do not have to be individually supported, the number of parts is further reduced and the structure is simplified.

The guide and the second trip latch are
It is rotatably supported on the same support shaft provided on the support structure. Since it is not necessary to individually support the second trip latch and the closing lever, the number of parts is reduced and the structure is simplified.

The first shut-off lever and the second shut-off lever are rotatably supported by the same support shaft provided on the support structure, and the guide surface of the guide is an arc surface, and Is characterized in that the center of the arc of the arc surface is located at the center of the support shaft when the is locked by the first trip latch. The movement trajectory of the connecting portion can be controlled with a simple configuration.

Further, the first and second shut-off levers are rotatably supported by the same support shaft provided on the support structure, and the guide surface of the guide is a flat surface. Features. The processing of the guide surface is easy, and the torque of the closing energy storage means transmitted to the first shut-off lever at the start or end of the closing operation can be increased.

Further, the link device is characterized in that a rotating body which is brought into contact with the guide surface of the guide and guided while rotating is provided at the connecting portion. When the connecting portion is guided by the guide, the frictional resistance is reduced, and when the opening / closing contact is closed to store the energy for the open circuit, the energy stored in the energy storage device for closing is applied to the first shut-off lever. Can communicate effectively.

[0036] The energy storage means for the closed circuit is characterized in that the energy is stored by a power storage device that drives the closing lever by a cam driven by a motor. By controlling the shape of the cam, it is possible to control the load torque of the motor at the time of accumulating the closing accumulating means, and it is possible to reduce the maximum torque applied to the components of the accumulating device.

Further, the energy storage device is characterized in that it has a braking member that slides on the cam while elastically deforming to brake the cam. The rotating cam can be braked by inertia and stopped quickly.

Further, a closing latch is provided rotatably on the same shaft as the cam, and the closing lever is locked by the closing latch to hold the closing power storing means in a charged state, and the closing lever is engaged with the closing lever by the closing latch. By releasing the stop, the closing energy storing means is released. There is no need to provide a separate shaft for supporting the closing latch, and the number of parts is reduced.

The switch is a circuit breaker. Such an operating device is suitable for use in a circuit breaker.

[0040]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 A device for operating a circuit breaker according to Embodiment 1 of the present invention will be described with reference to the drawings. FIGS. 1 to 9 show a circuit breaker operating device according to Embodiment 1 of the present invention. FIG. 1 is a main part configuration diagram of the circuit breaker operating device. And the torsion bar for opening both accumulate. FIG. 2 is a main part configuration diagram of a circuit breaker operating device, and is a main part configuration diagram of a power storage device that stores power in a torsion bar for closing.

FIG. 3 is a side view showing the vicinity of the torsion bar for opening and the first shut-off lever as viewed from the left side of FIG. 1, and FIG. 4 is the vicinity of the torsion bar and closing lever for closing.
It is a side view shown from the left side of FIG. FIG. 5 is a main part configuration diagram of the circuit breaker operating device, and shows a state where the circuit opening operation is being performed from the state of FIG. 6 is a main part configuration diagram of the circuit breaker operating device. FIG. 6 shows a state in which the opening operation is completed from the state of FIG. 5, the closing torsion bar is charged, and the opening torsion bar is released. Show.

FIG. 7 is a configuration diagram of a main part of the circuit breaker operating device, showing a state in which the circuit breaker is closed, the circuit closing torsion bar is released, and the circuit opening torsion bar is charged.
FIG. 8 is a main part configuration diagram of the operation device of the circuit breaker. In a state where the second circuit opening operation is completed immediately after the high-speed reclosing operation, the circuit breaker is in an open state, and the closing and opening torsion bars are open. Both show the state where it was released. FIG. 9 shows a section line C of FIG.
It is sectional drawing in -C.

First, referring to FIG. 3, the structure of a torsion bar as an energy storage means for opening will be described. Reference numeral 26 denotes a lever (not shown; see FIG. 70, see FIG. 70) provided on an end face of the cylinder, which is rotatable by being fitted to a pin (not shown). Reference numerals 28 and 34 denote torsion bars for opening. One end of the torsion bar 28 for opening is fixed to the housing 1 and the other end is fixed to the lever 26. One end of the torsion bar 34 for opening is fixed to the main shaft 51 inside a main shaft 51 described later. The other end is fixed to the lever 26.

Next, referring to FIG. 4, a torsion bar as a closing energy storage means will be described. Reference numeral 27 denotes a lever which is rotatable by being fitted to a pin (not shown) provided on an end surface of a cylindrical body (not shown, see cylindrical body 24 in FIG. 69).
29 and 35 are torsion bars for closing. The closing torsion bar 29 has one end fixed to the housing 1 and the other end fixed to the lever 27. The closing torsion bar 35 has one end fixed to the inside of a later-described input shaft 109 and the other end. Is fixed to the lever 27.

Although the details will be described later, since the opening torsion bars 28 and 34 are charged by the releasing force of the closing torsion bars 29 and 35, the stored energy of the closing torsion bars 29 and 35 is stored. The torsion bars 28 and 34 for opening are larger than those.

Now, the entire operation device of the circuit breaker will be described with reference to FIGS. In these figures, reference numeral 51 denotes a main shaft, which is rotatably supported by a housing (not shown in FIG. 1 and the like, see the housing 1 in FIG. 70). Then, the torsion bar 3 for opening is opened inside the main shaft 51.
One end of 4 is fixed to the main shaft 51 by welding (particularly, see FIG. 3). Reference numeral 52 denotes a first shut-off lever fixed to the main shaft 51, and the torsion bars 34, 28 for opening the circuit.
Thus, a counterclockwise torque in FIG. 1 acts. Hereinafter, unless otherwise specified, the rotation direction and the left, right, up and down directions are based on the drawings.

Reference numeral 53 denotes a first link, and reference numeral 54 denotes a second link. Reference numeral 55 denotes a second shut-off lever rotatably provided around the main shaft 51, which is rotatably supported by the main shaft 51 (particularly, see FIG. 3). 56 is a first shut-off lever 52
And the first link 53. 57 is the first
And a pin for connecting the link 53 and the second link 54. Reference numeral 58 denotes a pin for connecting the second link 54 and the second shut-off lever 55, and reference numeral 59 denotes a rotating body provided on the pin 57. The first and second links 53 and 54 are connected by a pin 57 so as to form a flexibly stretchable connecting portion 47a, and the rotation provided on the first and second links 53 and 54, the pin 57, and the pin 57 is provided. The body 59 constitutes the link device 47.

Reference numeral 10 denotes an open / close contact of the main circuit of the circuit breaker, 12 denotes a fixed contact of the circuit breaker, and 22 denotes a movable contact. 23
Is a link mechanism, and the movable contact 22 is a link mechanism 23
And is connected to the first shut-off lever 52 through the control lever. 42
Is a shock absorber, 61 is a rod, and the shock absorber 42 is a rod 6
1 is connected to the first shut-off lever 52.

Reference numeral 62 denotes a guide, which has an arc surface 62a as a guide surface and a pin 62 fixed to the main body of the guide 62.
b, and the pin 62b can be engaged with a second release latch 67 described later. 63 is a rotation axis,
The guide 62 is rotatably supported. The center of the arc of the arc surface 62a is on the axis of the main shaft 51 when the guide 62 is locked by a first trip latch 69 described later. 64 is a pin provided on the second shut-off lever 55.

Reference numeral 65 denotes a spring, which guides the rotating shaft 6
It is urged to rotate clockwise three times. 66 is a pin provided on the guide 62. 67 is a second trip latch having a tip slope 67a and a corner 67b,
It is rotatably mounted around a rotation shaft 63 and engages with a pin 64 provided on the second shut-off lever 55. 68
Is a spring and urges the second tripping latch 67 to rotate clockwise around the rotation axis 63. 69 is a first release latch, and 70 is a rotating shaft. The first trip latch 69 is rotatably mounted around the rotation shaft 70 and engages with the pin 66.

Reference numeral 71 denotes a pin provided on the first trip latch 69, 72 denotes a spring, 73 denotes a trip trigger, and 74 denotes a rotating shaft. The spring 72 urges the first trip latch 69 to rotate clockwise about the rotation axis 70. The trip trigger 73 is rotatably mounted around a rotation shaft 74, and the trip trigger 73 engages with the pin 71. 75
Is a spring, which urges the trip trigger 73 to rotate counterclockwise around the rotation axis 74. Reference numeral 20 denotes a tripping electromagnet having a plunger 21.

Reference numeral 76 denotes a closing lever, which is rotatably provided around the main shaft 51 and is supported by the housing via the main shaft 51. Reference numeral 109 denotes an input shaft, which is rotatably supported by the housing. One end of a torsion bar 35 for closing is fixed inside the input shaft 109 (see FIG. 4). 110 is a lever fixed to the input shaft 109. Reference numeral 111 denotes a closing link, and 112 denotes a pin. The closing link 111 is connected to the closing lever 76 and connected to the lever 110 by a pin 112. The lever 110 receives clockwise torque by the torsion bars 35 and 29 for closing, and the closing lever 76 also receives clockwise torque via the link 111.

Reference numeral 79 denotes a closing latch, 80 denotes a rotating shaft,
The closing latch 79 is attached so as to be rotatable around the rotation shaft 80. A spring 81 biases the closing latch 79 to rotate counterclockwise around the rotation axis 80. 82
Is a pin provided on the closing lever 76, and a closing latch 79
Engages. 83 is a closing trigger, 84 is a rotation axis,
The closing trigger 83 is attached so as to be rotatable around a rotation axis 84. A spring 85 urges the closing trigger 83 to rotate clockwise around the rotation axis 84. Reference numeral 86 denotes a pin provided on the closing latch 79, which is engaged with the closing trigger 83. Reference numeral 87 denotes a pin fixed to the closing lever 76, which comes into contact with and separates from the second shut-off lever 55 as the closing lever 76 rotates. Reference numeral 16 denotes a closing electromagnet, and a plunger 1
Seven.

Next, closing torsion bars 29, 35
The configuration of the energy storage device that stores energy will be described. In FIG. 2 showing a configuration of a main part of the energy storage device, reference numeral 88 denotes a lever, and the closing lever 7 rotates integrally with the closing lever 76.
6 so as to be rotatable around the main shaft 51. Reference numeral 89 denotes a second rotating body attached to the lever 88. The positions of the lever 88 and the second rotating body 89 shown by solid lines are positions when the torsion bars 29, 35 for closing are in the accumulating state. Torsion bar 29 for closing,
When 35 is released, the lever 88 and the second rotating body 89 move to the positions indicated by the broken lines, respectively.

Reference numeral 90 denotes a cam shaft, and reference numeral 91 denotes a cam. When the cam 91 is rotated around the cam shaft 90, it comes into contact with the second rotating body 89. 92 is a large gear fixed to the cam, 93 is a large gear 92
This is a small gear configured to mesh with and is driven to rotate clockwise by a motor (both not shown) via a speed reducer. Reference numeral 94 denotes an elastic body, the end 94a of which is fixed, and the cam 9 when the cam 91 rotates around the cam shaft 90.
1 slides while elastically deforming on a part of the outer peripheral portion thereof.
Brake the rotation of

Here, the first shut-off lever 52 is shown in FIG.
A supplementary explanation will be given of the positional relationship between the pin and the pin 57. FIG.
Is a cross-sectional view taken along section line CC in FIG. 8 (however, only the main part is shown and other parts are omitted), but the first shut-off lever 52 and the first plate-shaped first members provided on both sides are shown. Link 53
Are rotatably connected by a pin 56. The two plate-shaped second shut-off levers 55 are rotatably supported by the main shaft 51 and rotatably connected to the second link 54 by pins 58. In a state where all the torsion bars 28, 34, 29, 35 for blocking and closing shown in FIG. 8 are released, the pin 58 abuts on the first blocking lever 52 and stops. The operation of the pin 58 will be described later.

The operating device of the circuit breaker as described above has an obligation to perform opening, reclosing, and reopening from a closed state within a predetermined time. Hereinafter, this operation will be described in order. Figure 1
Indicates that the circuit breaker is in the closed state, and the first breaking lever 52 is provided with a counterclockwise rotational force by the stored open-circuit torsion bars 28 and 34. On the other hand, the second
The pin 64 is connected to the second tripping latch 67
And is locked by engaging with.

For this reason, the first link 53 and the second link 54 are connected to the first breaking lever 52 and the second breaking lever 5.
5, a force is generated in the rotating body 59 provided on the connecting portion 47 a of the link device 47 in the direction of pressing the arc surface 62 a of the guide 62. At this time, a counterclockwise rotation force about the rotation shaft 63 is generated in the guide 62, but the guide 62 is locked by the engagement of the first release latch 69 with the pin 66, and the first release latch 6
9 is held by the tripping trigger 73 engaging the pin 71, so that the guide 62 does not rotate.

First, the opening operation will be described. In the closed state shown in FIG. 1, when the tripping electromagnet 20 is excited by an opening command, the plunger 21 operates rightward, and the tripping trigger 73 rotates clockwise around the rotation shaft 74 against the spring 75. . Then, the engagement between the trip trigger 73 and the pin 71 is released, and the first trip latch 69 rotates counterclockwise due to the reaction force from the pin 66 of the guide 62. When the first release latch 69 rotates counterclockwise and comes off the pin 66, the rotating body 59 pushes the arc surface 62a, so that the guide 62 starts rotating counterclockwise against the spring 65,
The first shut-off lever 52 receiving torque from the torsion bars 28, 34 for opening starts to rotate counterclockwise.

At this time, the pin 62b of the guide 62 simultaneously pushes the second release latch 67, and the second release latch 67 rotates counterclockwise against the spring 68, and the second release latch 67 As a result, the pin 64 provided on the second shut-off lever 55 is disengaged, and the release of the lock of the second shut-off lever 55 is started. FIG. 5 shows the state at this time.

Hereinafter, a process until the opening operation is completed will be described mainly with reference to FIG. When the locking of the second shut-off lever 55 by the second tripping latch 67 is released, the second shut-off lever 55 becomes rotatable,
The guide 62 starts rotating clockwise by the spring 65,
The rotating body 59 starts to be pushed back. At this time, since the first shut-off lever 52 continues to rotate in the counterclockwise direction, the rotatable second shut-off lever 55 also starts to rotate in the counterclockwise direction.

Then, the second breaking lever 55 finally comes into contact with the pin 87 of the closing lever 76 and stops, and the positional relationship between the second breaking lever 55 and the pin 87 is as shown in FIG. That is, the first breaking lever 52 reaches the predetermined rotation angle and stops, the movable contact 22 is separated from the fixed contact 12, and the opening operation is completed.

Further, since the guide 62 is pushed clockwise by the spring 65, when the second shut-off lever 55 rotates counterclockwise, the pin
6 rotates clockwise until it engages with the first release latch 69, and then stops by contacting a stopper (not shown). At the same time, the first tripping latch 69 rotates clockwise by the action of the spring 72 to engage with the pin 66, and the tripping trigger 73 rotates counterclockwise by the action of the spring 75 to cause the first tripping. The pin 71 of the latch 69 is engaged. Thus, the guide 62 is locked. That is, when the opening operation is completed, the guide 62 is moved to the first release latch 6.
9 is locked. This state is shown in FIG.

Next, the reclosing operation will be described. FIG. 6 shows that the opening operation is completed and the torsion bars 29, 35 for closing are opened.
Is stored, and the open-circuit torsion bars 28, 34 are released. In this state, the closing lever 76 is connected to the open-circuit torsion bars 29, 35 via the link 111.
, A clockwise rotational force is always applied. The closing lever 76 is locked by engaging the pin 82 with the closing latch 79, the closing latch 79 is locked by engaging the closing trigger 83 with the pin 86, and the torsion bars 29, 35 for closing are stored. It is kept in the active state.

When the closing electromagnet 16 is excited by the closing command, the plunger 17 moves rightward, and the closing trigger 8
3 rotates counterclockwise around the rotation shaft 84 against the spring 85, the engagement between the closing trigger 83 and the pin 86 is released, and the closing latch 79 is rotated clockwise by the reaction force of the closing lever 76 from the pin 82. To rotate. When the closing latch 79 is rotated clockwise and disengages from the pin 82, the torsion bar 2 for closing is closed.
At the same time as the input lever 76 receiving torque from the motors 9 and 35 starts rotating clockwise, the pin 87 abuts on the second shut-off lever 55, and the second shut-off lever 55 is
To start clockwise rotation.

The guide 62 is locked by a first trip latch 69, and the rotating body 59 moves while abutting on the arc surface 62 a of the guide 62 and moves while rotating. Since only the drawing motion can be performed, the second link 54, the rotating body 59, the first link 53, and the first shut-off lever 52 are integrated, and the main shaft 51 is moved in conjunction with the rotation of the second shut-off lever 55. The movable contact 22 rotates clockwise, and the movable contact 22 is driven in the closing direction. At the same time, the torsion bars 28, 34 for opening, one end of which is fixed to the first shut-off lever 52, are twisted clockwise to accumulate energy.

When the closing lever 76 rotates clockwise, first, the pin 82 moves while sliding with the closing latch 79, and the closing latch 79 is pressed by the spring 81 to rotate counterclockwise. When the closing lever 76 is rotated clockwise by a predetermined angle and disengaged from the closing latch 79, the closing latch 79 comes into contact with a stopper (not shown) and moves counterclockwise beyond the state shown in FIG. Does not rotate.

The second shut-off lever 55 continues to rotate,
The pin 64 provided on the shut-off lever 55 of FIG. 1 abuts on the inclined surface 67a of the tip of the second tripping latch 67, and the second tripping latch 67 rotates counterclockwise. And pin 6
When 4 exceeds the corner 67b, the second tripping latch 67 rotates clockwise by the action of the spring 68 and engages with the pin 64 provided on the second shut-off lever 55. At the same time, the first shut-off lever 52 is pushed by the pin 87 provided on the closing lever 76 and reaches a predetermined rotation angle, and the closing operation and the opening operation of the torsion bars 28 and 34 for opening are completed. . FIG. 7 shows this state.

A closing torsion bar 2 described later is used.
Even when the closing lever 76 is rotated in the counterclockwise direction at the time of the accumulation of the powers 9 and 35 and the pin 87 is separated from the second shut-off lever 55,
Since the pin 64 is locked by the second tripping latch 67, the open-circuit torsion bars 28 and 34 are held in the charged state.

Next, the resuming route operation will be described. FIG.
In the closed state, when the trip electromagnet 20 is excited by the open command, the plunger 21 operates rightward, and the trip trigger 73 rotates clockwise around the rotation shaft 74 against the spring 75. When the tripping trigger 73 rotates, the engagement between the tripping trigger 73 and the pin 71 is released, and the first tripping latch 69 rotates counterclockwise due to the reaction force from the pin 66 of the guide 62.

When the first tripping latch 69 rotates counterclockwise and comes off the pin 66, the rotating body 59 moves to the arcuate surface 62a.
, The guide 62 starts rotating counterclockwise against the spring 65. When the guide 62 starts to rotate in the counterclockwise direction, the support of the rotating body 59 by the guide 62 is lost, so that the first shut-off lever 52 receiving torque from the torsion bars 28 and 34 for opening rotates counterclockwise. Is started, and the movable contact 22 is driven in the opening direction.

At this time, the pin 62b of the guide 62 simultaneously pushes the second release latch 67, and the second release latch 67 rotates counterclockwise against the spring 68, and the second release latch 67 Is disengaged from the pin 64 provided on the second shut-off lever 55. When the locking of the pin 64 by the second tripping latch 67 is released, the second shut-off lever 55 becomes rotatable. However, unlike the case where the closing torsion bar of FIG. Since the second shut-off lever 55 is in contact with the pin 87 provided on the closing lever 76, it stops without rotating.

Since the first breaking lever 52 rotates counterclockwise, the connecting portion 47a of the link device 47 connecting the first and second breaking levers 52 and 55 is bent, and finally the first breaking lever 47 is rotated. Is abutted against the pin 58 and stops. At this time, the movable contact 22 is completely separated from the fixed contact 12, and the opening operation is completed. This state is shown in FIG.

Strictly speaking, in the state of FIG. 7, the torque by the closing torsion bars 29 and 35 is applied to the closing lever 7.
6. Since the pin 66 is received by a stopper (not shown) in the shock absorber 42 via the second shut-off lever 55, the link device 47, the first shut-off lever 52, and the like, the pin 66 is locked by the first release latch 69. When the guide 62 starts to rotate counterclockwise and the rotating body 59 is no longer supported by the guide 62, the accumulated force of the torsion bars 29, 35 for closing causes the second shut-off lever 55 via the pin 87. Stops slightly pushed back clockwise. In this state,
Since the first shut-off lever 52 rotates counterclockwise, the connecting portion 47a of the link device 47 is bent, and the first shut-off lever 52 comes into contact with the pin 58 and stops.

Next, the closing torsion bars 29, 35
Will be described. Energy is accumulated from the state in which the torsion bars 29, 35 for closing in FIG. 7 or 8 are released. A lever 88 and a second rotating body 89 indicated by broken lines in FIG.
Is a position when the torsion bars 29, 35 for closing are in the released state. In response to the energy storage command, the motor causes the small gear 93 to rotate clockwise through a speed reducer (both not shown), and the large gear 92 and the cam 91 to rotate counterclockwise.

Initially, the cam 91 pushes up and elastically deforms the elastic body 94, but eventually separates from the elastic body 94 and further pushes the second rotating body 89 at the position shown by the broken line to push the lever 88.
Is rotated counterclockwise around the main shaft 51, and at the same time, the closing lever 76 integrated with the lever 88 is also rotated counterclockwise around the main shaft 51. When the closing lever 76 is rotated in the counterclockwise direction, the closing link 111 and the lever 1 are rotated.
The torsion bars 29, 35 for closing, one end of which is fixed to the input shaft 109 via 10, are twisted counterclockwise to accumulate energy.

The pin 82 abuts on the end face of the closing latch 79 and moves while sliding while the closing lever 76 is being rotated in the counterclockwise direction, and the second rotating body 89 is moved to the position indicated by the chain line in FIG. From the position indicated by the solid line, the closing latch 79 is rotated counterclockwise by the spring 81 to engage with the pin 82 provided on the closing lever 76. Further, the closing trigger 83 is rotated clockwise by the spring 85 to engage with the pin 86, the closing lever 76 is held, and the torsion bars 29, 35 for closing are maintained in the charged state.

When the closing lever 76 rotates counterclockwise, the pin 87 also moves.
Can be rotated counterclockwise. However, when the torsion bars 29, 35 for closing are charged from the state shown in FIG.
When the torsion bars 9 and 35 for closing are charged from the state shown in FIG. 8, the spring 65 causes the rotating body 59 to move through the guide 62. By pushing toward the main shaft 51, the second shut-off lever 55 rotates counterclockwise.

When the closing torsion bars 29, 35 are charged from the state shown in FIG. 8, the closing lever 76 and the pin 87 rotate counterclockwise with the storing of the closing torsion bars 29, 35. Accordingly, the second shut-off lever 55 also rotates counterclockwise following this. And
The guide 62 pressed by the rotating body 59 rotates clockwise by the force of the spring 65 and returns, and is locked by the first release latch 69 and the release trigger 73.

Thereafter, the driving by the motor is stopped, but the cam 91 continues to rotate due to the inertial force, and a part of the outer peripheral portion of the cam 91 slides while elastically deforming the elastic body 94 to be braked. The rotation stops, and the charging operation of the torsion bars 29, 35 for closing is completed. The state shown in FIG. 1 is obtained when the state of FIG. 7 is charged, and the state shown in FIG. 6 is obtained when the state of FIG. become. This state is shown in FIG. 6, and in the energy storage device, the lever 88, the second rotating body 89 and the cam 91 are at positions shown by solid lines in FIG.

In the state shown in FIG.
2 and release the torsion bars 29, 35 for closing.
Is released to perform the closing operation, the torsion bars 28 and 34 for opening are accumulated as shown in FIG.
Contacts the fixed contact 12 and the circuit breaker is closed. further,
Torsion bar 2 for closing by motor (not shown)
When power is stored in the circuit breakers 9 and 35, as shown in FIG. 1, the circuit breaker is closed and the torsion bars 29 and 35 for closing and the torsion bars 28 and 34 for opening are returned to the state in which both are stored.

Since the circuit breaker operating device according to the first embodiment is configured as described above, the first trip latch 69 has already locked the guide 62 before the closing operation. There is no need to wait until the engagement between the guide 62 and the first release latch 69 and the rebound of the engagement between the first release latch 69 and the release trigger 73 stops and stabilizes. Can start and improve the operating performance of the switch.

When the locking of the guide 62 by the first release latch 69 is released, the position of the closing lever 76 and the engagement state between the second release latch 67 and the second shut-off lever 55 are affected. However, since the rotating body 59 moves to the left and the first shut-off lever 52 rotates counterclockwise, it is possible to shift to the opening operation at any time during the closing operation.

Further, if the locking of the pin 66 by the first release latch 69 is released, the closing trigger 8
3 is erroneously excited and the closing lever 76 by the closing latch
Is released, and even if the second shut-off lever 55 is driven clockwise by the closing torsion bar, the first shut-off lever 52 does not rotate to the point where the circuit is closed. However, there is no fear of closing.

The first shut-off lever 52, the second shut-off lever 55, and the closing lever 76 are rotatably supported by the same main shaft 51, and the second tripping latch 67 and the guide 62 are the same. Because it is supported by the rotating shaft 63,
The number of parts is reduced, the structure is simplified, and the device can be downsized.

Further, since the connecting portion 47a is guided by the arcuate surface 62a of the guide 62, the configuration for controlling the movement locus of the connecting portion 47a is simplified. Further, when the connecting portion 47a is guided by the guide 62, the rotating body rotates, so that the frictional resistance is reduced, and the circuit breaker is closed to open the torsion bar 2 for opening.
When accumulating 8, 34, the torsion bar 2 for closing
The torque by the components 9 and 35 can be effectively transmitted to the first shut-off lever 52. Since the torsion bar has only the polar moment of inertia of the torsion bar itself, it has advantages such as good energy efficiency and no stress concentration, and is particularly suitable for operation devices such as relatively large circuit breakers requiring large energy. I have.

Since the energy storage device is configured to drive the second rotating body 89 attached to the lever 88 by the cam 91, the shape of the cam 91 is controlled to store the torsion bars 29, 35 for closing. Since the load torque of the motor at the time of energization can be made constant and the maximum torque applied to the components of the energy storage device can be reduced, the components of the energy storage device and, consequently, the energy storage device can be downsized. Further, since the cam 91 is braked by the elastic body 94 that slides on the cam 91 while being elastically deformed, the cam 91 rotating by inertia can be stopped quickly.

Embodiment 2 Further, an operating device of a circuit breaker according to Embodiment 2 of the present invention will be described with reference to FIGS. FIG. 10 is a main part configuration diagram of the circuit breaker operating device, and shows a state in which the circuit breaker is in a closed state and both the closed coil spring and the open circuit coil spring are energized. FIG. 11 is a main part configuration diagram of the circuit breaker operating device, and shows a state in which a circuit opening operation is being performed from the state of FIG. 10.

FIG. 12 is a block diagram of a main part of the circuit breaker operating device. FIG. 12 shows a state in which the open circuit operation is completed from the state of FIG. 11, the closed circuit coil spring is charged, and the open circuit coil spring is released. FIG. 13 is a main part configuration diagram of the circuit breaker operating device,
This shows a state in which the circuit breaker is in a closed state, the closed coil spring is energized, and the open circuit coil spring is energized. FIG. 14 is a main part configuration diagram of the operation device of the circuit breaker, in a state where the second opening operation is completed immediately after the high-speed reclosing operation, the circuit breaker is in the open state,
This shows a state where both the closing coil spring and the opening coil spring are released.

In the second embodiment, an open-circuit coil spring 60 is used instead of the open-circuit torsion bars 28 and 34 in FIG. 1, and a closed-circuit coil spring 77 is used instead of the open-circuit torsion bars 29 and 35. It is.

In these figures, reference numeral 51 denotes a main shaft fixed to a casing (not shown), and reference numeral 52 denotes a first shut-off lever provided rotatably around the main shaft 51. 53 is the first link,
54 is a second link, and 55 is a second shut-off lever provided rotatably around the main shaft 51. 56 is a pin for connecting the first breaking lever 52 and the first link 53, and 57 is a first pin.
And a pin for connecting the link 53 and the second link 54.

Reference numeral 58 denotes a pin connecting the second link 54 and the second shut-off lever 55, and reference numeral 59 denotes a rotating body provided on the pin 57. The first and second links 53 and 54 are connected by a pin 57 so as to form a freely bendable connecting portion 47a, and the first and second links 53 and 54 and the pin 5 are connected.
7. The rotating body 59 provided on the pin 57 is
Is composed.

Reference numeral 10 denotes a switching contact of the main circuit of the circuit breaker, 12 denotes a fixed contact of the circuit breaker, 22 denotes a movable contact, and the switching contacts 10 are constituted by the two contacts 12, 22. 23
Is a link mechanism, and the movable contact 22 is a link mechanism 23
And is connected to the first shut-off lever 52 through the control lever. 42
Is a shock absorber, 60 is an open-circuit coil spring as an accumulator for opening, 61 is a rod, and the open-circuit coil spring 60 and the shock absorber 42 are connected to the first shut-off lever 52 via the rod 61. In order to accumulate the open coil spring 60 by the closed coil spring 77, the closed coil spring 77
Is made larger than that of the open-circuit coil spring 60.

A guide 62 has an arc surface 62 a as a guide surface and a pin 62 fixed to the main body of the guide 62.
b, and the pin 62b can be engaged with a second release latch 67 described later. 63 is a rotation axis,
The guide 62 is rotatably supported. The center of the arc of the arc surface 62a is on the axis of the main shaft 51 when the guide 62 is locked by a first trip latch 69 described later. 64 is a pin provided on the second shut-off lever 55.

Reference numeral 65 denotes a spring.
It is urged to rotate clockwise three times. 66 is a pin provided on the guide 62. 67 is a second trip latch having a tip slope 67a and a corner 67b,
It is attached so as to be rotatable around the rotation shaft 63 and engages with a pin 64 provided on the shut-off lever 55. A spring 68 biases the second tripping latch 67 to rotate clockwise around the rotation axis 63. 69 is a first release latch, and 70 is a rotating shaft. First trip latch 69
Is mounted so as to be rotatable about a rotation shaft 70 and engages with the pin 66.

Reference numeral 71 denotes a pin provided on the first trip latch 69, 72 denotes a spring, 73 denotes a trip trigger, and 74 denotes a rotating shaft. The spring 72 urges the first trip latch 69 to rotate clockwise about the rotation axis 70. The trip trigger 73 is rotatably mounted around a rotation shaft 74, and the trip trigger 73 engages with the pin 71. 75
Is a spring, which urges the trip trigger 73 to rotate counterclockwise around the rotation axis 74. Reference numeral 20 denotes a tripping electromagnet having a plunger 21.

Reference numeral 76 denotes a closing lever, which is provided rotatably around the main shaft 51. Reference numeral 77 denotes a closing coil spring as a biasing means for closing the circuit, and reference numeral 78 denotes a rod. The closing coil spring 77 is connected to the closing lever 76 via the rod 78 and the like, and rotates the closing lever 76 clockwise around the main shaft 51. Energize to rotate.

Although not shown, a lever similar to the lever 88 rotatably mounted around the main shaft 51 of the energy storage device described in the first embodiment is provided with the closing lever 7.
6 and attached so as to be rotatable about the main shaft 51. Reference numeral 109 denotes an input shaft fixed to a housing (not shown), and reference numeral 110 denotes a lever rotatably supported by the input shaft 109. Reference numeral 111 denotes a closing link, which is connected to the closing lever 76. A pin 112 connects the closing link 111, the lever 110, and the rod 78. The lever 110 functions as a guide when the closing coil spring 77 drives the closing lever 76 via the closing link 111.

A spring 81 urges the closing latch 79 to rotate counterclockwise around the rotation shaft 80. 8
Reference numeral 2 denotes a pin provided on the closing lever 76.
9 engages the pin 82. 83 is a closing trigger, 84 is a rotating shaft, and the closing trigger 83 is mounted rotatably around the rotating shaft 84. A spring 85 urges the closing trigger 83 to rotate clockwise around the rotation axis 84. Reference numeral 86 denotes a pin provided on the closing latch 79, and the closing trigger 83 is engaged with the pin 86. 87 is the closing lever 7
6, which comes into contact with and separates from the second shut-off lever 55 as the closing lever 76 rotates. Reference numeral 16 denotes a charging electromagnet having a plunger 17.

Hereinafter, the operations from the closed state to the open, reclose, and restart paths will be described in order. FIG. 10 shows a state in which the circuit breaker is in the closed state. The first breaking lever 52 is given a counterclockwise rotational force by the stored open coil spring 60. On the other hand, the second shut-off lever 55 is locked by the pin 64 engaging the second tripping latch 67.

Therefore, the first link 53 and the second link 54 receive forces from both the first shut-off lever 52 and the second shut-off lever 55, and are provided on the connecting portion 47 a of the link device 47. The rotating body 59 generates a force in the direction of pressing the arc surface 62a of the guide 62. At this time, a counterclockwise rotation force about the rotation shaft 63 is generated in the guide 62, but the guide 62 is locked by the engagement of the first release latch 69 with the pin 66, and the first release latch 6
9 is held by the tripping trigger 73 engaging the pin 71.

First, the opening operation will be described. FIG.
In the closed state, when the trip electromagnet 20 is excited by the open command, the plunger 21 operates rightward, and the trip trigger 73 rotates clockwise around the rotation shaft 74 against the spring 75. Then, the engagement between the trip trigger 73 and the pin 71 is released, and the first trip latch 69 rotates counterclockwise due to the reaction force from the pin 66 of the guide 62. When the first trip latch 69 rotates counterclockwise and comes off the pin 66, the rotating body 59 pushes the arc surface 62a.
The guide 62 starts rotating counterclockwise against the coil spring 65, and the first shut-off lever 52 receiving torque from the open circuit coil spring 60 starts rotating counterclockwise.

At this time, the pin 62b of the guide 62 simultaneously pushes the second release latch 67, and the second release latch 67 rotates counterclockwise against the spring 68, and the second release latch 67 , The pin 64 provided on the second shut-off lever 55 is disengaged, and the locking of the second shut-off lever 55 is started to be released. FIG. 11 shows the state at this time.

Hereinafter, a process until the opening operation is completed will be described mainly with reference to FIG. When the pin 64, that is, the second shut-off lever 55 is unlocked by the second tripping latch 67, the second shut-off lever 55 becomes rotatable. Further, the guide 62 starts to rotate clockwise by the coil spring 65 and starts pushing back the rotating body 59. At this time, since the first shut-off lever 52 continues to rotate counterclockwise, the rotatable second shut-off lever 55 also starts to rotate counterclockwise.

Then, the second breaking lever 55 finally comes into contact with the pin 87 of the closing lever 76 and stops, and the positional relationship between the second breaking lever 55 and the pin 87 is as shown in FIG. That is, the first breaking lever 52 reaches the predetermined rotation angle and stops, the movable contact 22 is separated from the fixed contact 12, and the opening operation is completed.

Since the guide 62 is pushed clockwise by the spring 65, the pin 66 is brought into contact with the rotating body 59 when the second shut-off lever 55 rotates counterclockwise.
Rotates clockwise until it engages with the first release latch 69, and then comes into contact with a stopper (not shown) and stops. At the same time, the first release latch 69 is
Rotates clockwise by the action of to engage the pin 66,
The trip trigger 73 rotates counterclockwise by the action of the coil spring 75 and engages with the pin 71 of the first trip latch 69. Thus, the guide 62 is locked. That is, when the opening operation is completed, the guide 62 is in a state of being locked by the first release latch 69. This state is shown in FIG.

Next, the reclosing operation will be described. FIG.
Is a state in which the opening operation is completed, the closing coil spring 77 is charged, and the opening coil spring 60 is released. In this state, the closing lever 76 is always clockwise driven by the closing coil spring 77 via the link 111. A turning force is given. The closing lever 76 is locked when the pin 82 is engaged with the closing latch 79, and the closing latch 79 is locked when the closing trigger 83 is engaged with the pin 86, so that the closing coil spring 77 is charged. Held in state.

When the closing electromagnet 16 is excited by the closing command, the plunger 17 moves rightward and the closing trigger 8
3 rotates counterclockwise around the rotation shaft 84 against the spring 85, the engagement between the closing trigger 83 and the pin 86 is released, and the closing latch 79 is rotated clockwise by the reaction force of the closing lever 76 from the pin 82. To rotate. When the closing latch 79 rotates clockwise and separates from the pin 82, the closing lever 76 receiving torque from the closing coil spring 77 starts rotating clockwise, and at the same time, the pin 87 contacts the second shut-off lever 55. In contact therewith, the second shut-off lever 55 is pushed by the pin 87 and starts rotating clockwise.

When the closing lever 76 rotates clockwise, first, the pin 82 moves while sliding with the closing latch 79, and the closing latch 79 is pushed by the spring 81 to rotate counterclockwise. When the closing lever 76 is rotated clockwise by a predetermined angle and disengaged from the closing latch 79, the closing latch 79 comes into contact with a stopper (not shown) and moves counterclockwise beyond the state shown in FIG. Does not rotate.

The guide 62 is locked by a first trip latch 69, and the rotating body 59 moves while abutting against the arc surface 62a of the guide 62 and moves while rotating. Since only the drawing motion can be performed, the second link 54, the rotating body 59, the first link 53, and the first shut-off lever 52 are integrated, and the main shaft 51 is moved in conjunction with the rotation of the second shut-off lever 55. The movable contact 22 rotates clockwise, and the movable contact 22 is driven in the closing direction. At the same time, the open circuit coil spring 60 connected to the first shut-off lever 52 is compressed and stored.

The second shut-off lever 55 continues to rotate,
The pin 64 provided on the shut-off lever 55 of FIG. 1 abuts on the inclined surface 67a of the tip of the second tripping latch 67, and the second tripping latch 67 rotates counterclockwise. And pin 6
When 4 exceeds the corner 67b, the second tripping latch 67 rotates clockwise by the action of the spring 68 and engages with the pin 64 provided on the second shut-off lever 55. At the same time, the first shut-off lever 52 is pushed by the pin 87 provided on the closing lever 76 to reach a predetermined rotation angle, and the closing operation and the energy storing operation of the open coil spring 60 are completed. This state is shown in FIG.

When the closing lever 76 is rotated counterclockwise when the closing coil spring 77 is charged and the pin 87 is separated from the second cut-off lever 55, the second release latch 67
As a result, the open circuit coil spring 60 is held in the biased state.

Next, the resuming route operation will be described. Figure 1
When the tripping electromagnet 20 is excited by the opening command in the closed state of 3, the plunger 21 operates rightward, and the tripping trigger 73 rotates clockwise around the rotation shaft 74 against the spring 75. When the tripping trigger 73 rotates, the engagement between the tripping trigger 73 and the pin 71 is released, and the first tripping latch 69 rotates counterclockwise due to the reaction force from the pin 66 of the guide 62. When the first release latch 69 rotates counterclockwise and comes off the pin 66, the rotating body 59
Since the guide 2a is pressed, the guide 62 starts rotating counterclockwise against the spring 65. When the guide 62 starts to rotate in the counterclockwise direction, the support of the rotating body 59 by the guide 62 is lost, so that the first shut-off lever 52 receiving torque from the open circuit coil spring 60 starts to rotate in the counterclockwise direction, The movable contact 22 is driven in the opening direction.

At this time, simultaneously, the pin 62b of the guide 62 pushes the second release latch 67, and the second release latch 67 rotates counterclockwise against the spring 68, so that the second release latch 67 Is disengaged from the pin 64 provided on the second shut-off lever 55. When the locking of the pin 64 by the second release latch 67 is released, the second shut-off lever 55 becomes rotatable. However, unlike the case where the closing coil spring 77 of FIG. Since the second shut-off lever 55 is in contact with the pin 87 provided on the closing lever 76, it stops without rotating.

Since the first shut-off lever 52 rotates counterclockwise, the connecting portion 47a of the link device 47 connecting the first and second shut-off levers 52 and 55 is bent, and finally the first shut-off lever 52 is rotated. Is abutted against the pin 58 and stops. At this time, the movable contact 22 is completely separated from the fixed contact 12, and the opening operation is completed. This state is shown in FIG.

Strictly speaking, in the state shown in FIG. 13, the torque by the closing coil spring 77 is applied to the closing lever 76, the second breaking lever 55, the link device 47, and the first breaking lever 5.
Since the pin 66 is received by a stopper (not shown) in the shock absorber 42 via the second or the like, the locking of the pin 66 by the first release latch 69 is eliminated, and the guide 62 starts to rotate counterclockwise, and the rotation by the guide 62 When the support of the body 59 is lost,
The second shut-off lever 55 is stopped in a state where it is slightly pushed back clockwise through the pin 87 by the accumulated force of the closing coil spring 77. In this state, the first shut-off lever 52 rotates counterclockwise.
Is bent, and the first shut-off lever 52 comes into contact with the pin 58 and stops.

Next, the energy stored in the closing coil spring 77 is shown in FIG.
This is performed by compressing the closing coil spring 77 with the same energy storage device as shown in FIG. The energy storage operation is the same as that described in the operation of the energy storage device in FIG. When the charging of the closing coil spring 77 is completed, the closing lever 76 is locked by the closing latch 79, and the lever 88 and the second rotating body 89 are in the state shown by the solid line in FIG.

In the state shown in FIG. 12, when the locking of the pin 82 by the closing latch 79 is released and the closing coil spring 77 is released to perform the closing operation, as shown in FIG.
As 0 is accumulated, the movable contact 22 is driven in the closing direction. Further, when the closed coil spring 77 is charged by a motor (not shown), as shown in FIG. 10, the circuit breaker is closed and the open coil spring 60 and the closed coil spring 77 are both charged. Return.

In the circuit breaker operating device according to the second embodiment, a coil spring is used in place of a torsion bar as a breaking and closing energy accumulating means. In addition, it has the inertial mass of the coil spring itself (about one third of the total mass of the coil spring) in the case of the other motion. Although the energy efficiency is lower than that of the torsion bar, it can be made compact as energy storage means. Suitable for relatively small and medium-sized circuit breaker operating devices that do not require large energy.

Further, by providing a lever 110 to serve as a guide when the closing coil spring 77 drives the closing lever 76 via the closing link 111, the distance between the closing coil spring 77 and the closing lever 76 can be increased. Thus, the closing lever 76 can be driven stably, and the degree of freedom in the position of the closing coil spring 77 with respect to the closing lever 76 increases.

Embodiment 3 FIG. A circuit breaker operating device according to Embodiment 3 of the present invention will be described with reference to the drawings. FIG.
FIG. 19 shows an operating device for a circuit breaker according to Embodiment 3 of the present invention. FIG. 15 is a main part configuration diagram of the operating device for the circuit breaker. This shows a state where both coil springs are charged. FIG. 16 is a main part configuration diagram of the operating device of the circuit breaker, and shows a state where the circuit opening operation is being performed from the state of FIG.

FIG. 17 is a block diagram of a main part of the operating device of the circuit breaker. FIG. 17 shows a state in which the opening operation has been completed from the state of FIG. 16, the closed coil spring has been charged, and the open coil spring has been released. FIG. 18 is a main part configuration diagram of an operation device of the circuit breaker,
This shows a state in which the circuit breaker is in a closed state, the closed coil spring is energized, and the open circuit coil spring is energized. FIG. 19 is a main part configuration diagram of the operating device of the circuit breaker, in a state where the second opening operation is completed immediately after the high-speed reclosing operation, the circuit breaker is in an open state,
This shows a state where both the closing coil spring and the opening coil spring are released.

In the third embodiment, the number of components is reduced by omitting the input shaft 109, the lever 110, the input link 111, the pin 112, etc. in the operating device shown in the second embodiment.

In these figures, reference numeral 75 denotes a spring which urges the trip trigger 73 to rotate counterclockwise around the rotation axis 74, and has a mounting direction opposite to that of the spring 75 shown in the second embodiment. The biased spring 75 urges the trip trigger 73 to rotate counterclockwise with the force to expand, but the function is the same. 76 is a closing lever provided rotatably around the main shaft 51, 77 is a closing coil spring, and 78 is a rod.
Urges the closing lever 76 clockwise around the main shaft 51 via the rod 78.

Since other structures are the same as those of the second embodiment, the corresponding components are denoted by the same reference numerals and description thereof is omitted.

The operation procedure from the closed state to the open, reclose, and restart paths is the same as that in the second embodiment, and the description is omitted. When the circuit breaker is closed by the release of the closing coil spring 77, the rod 7 is closed by the closing coil spring 77.
The closing lever is driven by driving the closing lever 76 through 8. Also,
With regard to the energy storing operation of the closing coil spring 77, the closing lever 76 is driven counterclockwise by the same device as the energy storing device shown in FIG.
Compress and accumulate.

Since the circuit breaker operating device according to the third embodiment is configured as described above, the same effect as that described in the second embodiment can be obtained, and the number of parts can be further reduced.

Embodiment 4 Fourth Embodiment A circuit breaker operating device according to a fourth embodiment of the present invention will be described with reference to the drawings. FIG.
FIG. 25 to FIG. 25 show a circuit breaker operating device according to Embodiment 4 of the present invention. FIG. 20 is a main part configuration diagram of the circuit breaker operating device. This shows a state in which both torsion bars for energy are accumulating. FIG.
FIG. 21A is an explanatory view for explaining the configuration around the lock member, and FIG. 21A is a view seen from the front of FIG.
FIG. 21B is a diagram viewed from the right side of FIG.

FIG. 22 is a configuration diagram of a main portion of the circuit breaker operating device, showing a state in which the circuit breaker is in the open state, the closing torsion bar is charged, and the open circuit torsion bar is released. FIG. 23 is a main part configuration diagram of the circuit breaker operating device, and shows a state during the closing operation. FIG. 24 is a main part configuration diagram of the circuit breaker operating device, and shows a state in which the closing operation is completed, the closing torsion bar is released, and the opening torsion bar is charged. FIG. 25 is a main part configuration diagram of the operating device of the circuit breaker. In a state where the second opening operation is completed immediately after the high-speed reclosing operation, the circuit breaker is in the open state, and the closing and opening torsion bars are in the open state. Both show the state where it was released.

In the fourth embodiment, the operating device of the circuit breaker shown in the first embodiment is provided with a lock member for restraining the tripping trigger 73, and the tripping electromagnet 20 is erroneously opened in the course of closing due to an opening command. Even if the plunger 21 is operated by being excited, the circuit breaker is prevented from being opened, and a stopper having predetermined elasticity is provided to absorb the energy released from the torsion bar for closing.

In the circuit breaker operating device as shown in FIG. 1, the closing operation is started from the state shown in FIG. 6. When the trip electromagnet 20 operates during the closing operation, the trip trigger 73 is activated. In operation, the engagement between the first release latch 69 and the guide 62 is released, and the guide 62 is
To rotate counterclockwise. That is, the rotating body 59
Is no longer supported by the guide 62, and the link device 47 is in a so-called hip-broken state. When the link device 47 is broken, the torsion bar 2 for closing, which is a closing system, is used.
9 and 35 and the closing lever 76 receive no reaction force from the opening torsion bars 28 and 34, the shock absorber 42, the second shut-off lever 55, and the first shut-off lever 52, which are open circuits, and enter a no-load state. .

Therefore, the closing lever 76, the second shut-off lever 55, the pin 58, the second link 54, and the like rapidly rotate clockwise, and the pin 58 rotates counterclockwise during the opening operation. The first collision lever 52 in FIG.
And the positional relationship between the pin 58 and the first shut-off lever 52 in FIG. 9). At this time, the pin 58 or the first shut-off lever 52
Large impact force is generated. Therefore, it is necessary to make the mechanism of the operating device strong enough to withstand the above-described impact force, which leads to an increase in the size and weight of the device. In the fourth embodiment, the above-described points are improved to reduce the size and weight.

In FIGS. 20 to 25, reference numeral 103 denotes a lock member. In FIG. 21 showing details of the vicinity of the lock member 103, reference numeral 119 denotes a support plate which is disposed to face the trip trigger 73 and is fixedly supported by a housing (not shown). The trip trigger 73 is rotatably supported by the support plates 119 on both sides by a rotating shaft 74. 119
a (FIG. 21A) is a linear guide groove provided on the support plate 119. Although details will be described later, FIG.
Indicates a state in which the lock member 103 is located above the guide groove portion 119a and the trip trigger 73 can rotate freely.

As shown in FIG. 21 (b), the lock member 103 is formed by bending a bar having a circular cross section at both ends at right angles, and one of the bent ends is rotatably engaged with the closing lever 76. The other end is inserted into a guide groove 119a provided on the two support plates 119, and moves in the guide groove 119a in the vertical direction with the rotation of the closing lever 76. Reference numeral 104 denotes a stopper formed of rubber having a predetermined elasticity, which is fixed to the housing 1 (FIG. 20). The lever 110 comes into contact with the closing torsion bars 29, 35 in the final stage of the urging. When it does, it absorbs its release energy.

The other configuration is the same as that of the first embodiment shown in FIG. 1, and the corresponding components are denoted by the same reference numerals and description thereof is omitted.

Next, the operation will be described. FIG. 22 shows that the circuit breaker is in the open state, the torsion bar for closing accumulates,
FIG. 2 shows a state in which the torsion bar for opening is released.
In 2, the closing lever 76 is constantly given a clockwise rotational force by the closing torsion bars 29, 35 via the closing link 111 and the lever 110. The closing lever 76 is locked by engaging the pin 82 with the closing latch 79, the closing latch 79 is locked by engaging the closing trigger 83 with the pin 86, and the torsion bars 29, 35 for closing are stored. Held in force. The lock member 103 interlocking with the closing lever 76 is located below and is not in contact with the trip trigger 73 at this time.
Is freely rotatable.

In the state shown in FIG. 22, when the closing electromagnet 16 is excited by the closing command, the plunger 17 moves rightward, and the closing trigger 83 is acted on by the rotating shaft 84 against the spring 85.
Rotates counterclockwise around the opening trigger 83 and the pin 86
And the closing latch 79 is rotated clockwise by a reaction force from the pin 82 of the closing lever 76. When the closing latch 79 is rotated clockwise and disengages from the pin 82, the closing lever 76 receiving torque from the closing torsion bars 29, 35 starts rotating clockwise, and at the same time, the pin 87 is rotated by the second shut-off lever. 55, the second shut-off lever 55 is pushed by the pin 87 and starts rotating clockwise.

The guide 62 is locked by a first trip latch 69, and the rotating body 59 draws an arc locus about the main shaft 51 because the rotating body 59 moves while rotating while contacting the arc surface 62a of the guide 62. Because you can only exercise, the second
Link 54, the rotating body 59, the first link 53 and the first
Of the second shut-off lever 5
5, rotates clockwise around the main shaft 51, and the movable contact 22 is driven in the closing direction.
The torsion bars 28 and 34 for opening are stored.

The second cut-off lever 55 continues to rotate,
The pin 64 provided on the shut-off lever 55 of FIG. 4 abuts against the tip slope 67 a of the second tripping latch 67, the second tripping latch 67 rotates counterclockwise, and the pin 64 turns the corner 67.
Above b, the action of the spring 68 causes the second tripping latch 67 to rotate clockwise to engage the pin 64 with the second tripping latch 67. At the same time, the first shut-off lever 52
Has reached the predetermined rotation angle, the closing operation and the charging operation of the torsion bars 28 and 34 for opening are completed. FIG. 23 shows a state in the middle of this operation, and FIG. 24 shows a closed state.

As shown in FIG. 23, at the start of closing, the locking member 103 connected to the closing lever 76 is guided by the guide groove 119a (FIG.
It moves upward while touching 3. For this reason, even if the trip electromagnet 20 is excited during the closing of the circuit, the trip trigger 73 is restrained from rotating. Lock member 103
Moves upward while maintaining contact with the tripping trigger 73 until just before the closing is completed.
Numeral 03 is separated from the trip trigger 73 and is located above it as shown in FIG.

From the state shown in FIG. 24, the energy storage device similar to the energy storage device shown in FIG. 2 is used, and the closing torsion bars 29, 35 are charged by a motor via a speed reducer (neither is shown). . At this time, the closing lever 76, to which one end of the closing torsion bar 35 is fixed, rotates counterclockwise, and is locked by the closing trigger 83 via the closing latch 79 when the accumulation of energy is completed. Hold. Since the closing lever 76 rotates counterclockwise, the lock member 103 is rotated.
Moves downward in the figure and comes to the same position as in the state of FIG.

Next, the resuming route operation will be described. FIG.
When the trip electromagnet 20 is excited by the open command in the closed state of 4, the plunger 21 operates rightward, and the trip trigger 73 rotates clockwise around the rotation shaft 74 against the spring 75. When the tripping trigger 73 rotates, the engagement between the tripping trigger 73 and the pin 71 is released, and the first tripping latch 69 rotates counterclockwise due to the reaction force from the pin 66 of the guide 62.

When the first tripping latch 69 rotates counterclockwise and comes off the pin 66, the rotating body 59 moves to the arcuate surface 62a.
, The guide 62 starts rotating counterclockwise against the spring 65. When the guide 62 starts to rotate in the counterclockwise direction, the support of the rotating body 59 by the guide 62 is lost, so that the first shut-off lever 52 receiving torque from the torsion bars 28 and 34 for opening rotates counterclockwise. Is started, and the movable contact 22 is driven in the opening direction.

At this time, simultaneously, the pin 62b of the guide 62 pushes the second release latch 67, and the second release latch 67 rotates counterclockwise against the spring 68, and the second release latch 67 Is disengaged from the pin 64 provided on the second shut-off lever 55. When the locking of the pin 64 by the second release latch 67 is released, the second shut-off lever 55 becomes rotatable. However, unlike the case where the closing torsion bar in FIG. Since the second shut-off lever 55 is in contact with the pin 87 provided on the closing lever 76, it stops without rotating.

In the state shown in FIG. 24, the torque by the closing torsion bars 29 and 35 is applied to the closing lever 76 and the second
Is received by a stopper (not shown) in the shock absorber 42 via the shut-off lever 55, the link device 47, the first shut-off lever 52, and the like.
6, the guide 62 starts to rotate counterclockwise, and the guide 62 stops supporting the rotating body 59, so that the clockwise torque is given by the accumulated force of the torsion bars 29, 35 for closing. The closing lever 76 that is set is going to rotate clockwise, but since the lever 110 contacts the stopper 104, it does not rotate further clockwise and the second shut-off lever 55 does not rotate.

In this state, the first shut-off lever 52 rotates counterclockwise, and the guide 62 turns counterclockwise to stop against the stopper (not shown). Link device 4 connecting 52, 55
7, the bending portion 47a is bent and finally stops before the first shut-off lever 52 comes into contact with the pin 58. At this time,
The movable contact 22 is completely separated from the fixed contact 12, and the opening operation is completed.

When the support of the rotating body 59 by the guide 62 is lost, the lever 110, that is, the closing lever 76 and the second shut-off lever 55 are prevented from rotating clockwise beyond a predetermined angle by the stopper 104.
Unlike the first embodiment, the first breaking lever 52 does not collide with the pin 58 provided on the second breaking lever 55. This state is shown in FIG.

The other operations are the same as those of the circuit breaker operating device shown in the first embodiment.

Since the operating device for a circuit breaker according to Embodiment 4 of the present invention is configured as described above, even if an opening command is input during the closing operation and the trip electromagnet 20 is excited, the tripping is performed. Since the trigger 73 is prevented from rotating by the lock member 103, the locking of the trip latch 69 is not released, and the opening operation can be performed only after the circuit is closed. Further, if the locking of the guide 62 is released immediately after the closing, the support of the rotating body 59 is lost, so that the second shut-off lever 55, the closing lever 76, the lever 110 and the like remain on the torsion bars 29, 35 for closing. Although it tries to rotate clockwise due to the stored energy, it is possible to prevent the impact by receiving the lever 110 with the stopper 104 and to stop the lever 110, the closing lever 76, and the second shut-off lever 55. . Furthermore, since the first shut-off lever 52 stops in a state where it does not contact the pin 58, it is possible to prevent the occurrence of an impact.

Further, since the locking member 103 moves following the rotation of the closing lever 76 and locks the tripping trigger 73, even if the tripping electromagnet 20 is energized by an open command during the closing of the circuit, the pulling member is pulled out. The release trigger 73 does not operate, and the circuit cannot be opened unless the circuit is closed. Therefore, the guide 62 is unlocked in the course of closing and is driven counterclockwise by the torsion bars 28 and 34 for opening, and is driven clockwise by the closing lever 76 for closing. Collision with the pin 58 provided on the second shut-off lever 55 that is being performed can be prevented, and there is no possibility that a large impact is generated.

When the circuit is opened immediately after completion of the circuit closing, the spring 104 still remaining after the circuit closing operation of the circuit closing torsion bars 29 and 35 is received by the stopper 104 having a predetermined elasticity. Excessive impact can be prevented and mechanical reliability can be ensured.

The lock member 103 or the stopper 1
Even if only one of the elements 04 is provided, the effect of cushioning is provided accordingly. In particular, the lock member 1
03 is provided to prevent the tripping trigger 73 from being operated erroneously while the stored energy of the torsion bars 29, 35 for closing is large, even if the torsion bar 29, 29 for closing is accidentally opened immediately after closing. Since the stored energy of 35 has been largely released due to the closing and the remaining stored energy is relatively small, the stopper 104
Even if it is not provided, not so large impact is generated.

Embodiment 5 FIG. A circuit breaker operating device according to Embodiment 5 of the present invention will be described with reference to the drawings. FIG.
FIG. 30 shows an operating device of a circuit breaker according to Embodiment 5 of the present invention. FIG. 26 is a main part configuration diagram of the operating device of the circuit breaker. This shows a state where both coil springs are charged. FIG. 27 is a main part configuration diagram of the operating device of the circuit breaker, showing a state in which the circuit breaker is in the open state, the closed coil spring is charged, and the open circuit coil spring is released.

FIG. 28 is a configuration diagram of a main part of the circuit breaker operating device, showing a state in the course of performing a closing operation. FIG. 29 is a main part configuration diagram of the circuit breaker operating device, in which the closing operation is completed,
This shows a state in which the closing coil spring is released and the open circuit spring is charged. FIG. 30 is a main part configuration diagram of the operating device of the circuit breaker. In a state where the second opening operation is completed immediately after the high-speed re-closing operation, the circuit breaker is in an open state, and both the closing coil spring and the opening coil spring are in the open state. Indicates a fired state.

In the fifth embodiment, the lock member 103 explained in the fourth embodiment is added to the operating device shown in the third embodiment.
A lock member and a stopper similar to the stopper 104 and the stopper 104 are provided.

In these figures, reference numeral 103 denotes a lock member for restraining the trip trigger 73. Lock member 103
Is the same as that shown in the fourth embodiment. One bent end is rotatably engaged with the closing lever 76, and the other end is provided on two support plates. It is inserted into a guide groove (both not shown) and moves up and down in the guide groove as the input lever 76 rotates. Reference numeral 104 denotes a stopper formed of rubber having predetermined elasticity, which is fixed to the housing 1 and absorbs the discharge energy when the closed coil spring 77 comes into contact in the final stage of discharge.

The other configuration is the same as that of the third embodiment described above, and the corresponding components are denoted by the same reference characters and description thereof is omitted.

The operation and operation are the same as those of the lock member 103 and the stopper 104 shown in the fourth embodiment. FIG.
Accumulates, and the open circuit coil spring 77 is released.
The lock member 103 interlocked with the closing lever 76 is not in contact with the trip trigger 73, and the trip trigger 73 is freely rotatable. In this state, the closing trigger 83 is rotationally driven by the electromagnet 16 to release the engagement with the closing latch 79 to perform the closing operation. FIG. 28 shows a state during the closing operation, in which the locking member 103 moves upward while being in contact with the tripping trigger 73 in conjunction with the rotation of the closing lever 76 accompanying the closing operation, during which the tripping electromagnet 20 is moved. Even if it is excited, the operation of the trip trigger 73 is prevented.

FIG. 29 shows a state in which the closing operation has been completed, the closing coil spring 77 has been released, and the open coil spring 60 has been charged, and the lock member 103 is above the tripping trigger 73 and is separated. The trip trigger 73 is rotatable. When the closing coil spring 77 is charged by the power storage device from the state shown in FIG. 29, the closing lever 76 rotates counterclockwise, and the lock member 103 interlocked with the closing lever 76 moves downward, thereby causing the closing lever 76 shown in FIG. State.

Next, the resuming route operation will be described. FIG.
In the closed state of FIG. 9, when the trip electromagnet 20 is excited by the open circuit command, the plunger 21 moves rightward, and the trip trigger 73 is not restrained by the lock member 103, so that it is clockwise around the rotation shaft 74. Rotate. Trip trigger 7
3 rotates, the tripping trigger 73 and the pin 71 are disengaged from each other, and the first tripping latch 69 engages the pin 6 of the guide 62.
6 rotates counterclockwise by the reaction force.

When the first trip latch 69 comes off the pin 66, the rotating body 59 pushes the arc surface 62a.
The guide 62 starts rotating counterclockwise against the spring 65. When the guide 62 starts to rotate in the counterclockwise direction, the support of the rotating body 59 by the guide 62 is lost, so that the first breaking lever 5 receiving torque from the open circuit coil spring 60 is used.
2 starts rotating counterclockwise, and the movable contact 22 is driven in the opening direction.

At this time, simultaneously, the pin 62b of the guide 62 pushes the second release latch 67, and the second release latch 67 rotates counterclockwise against the spring 68, so that the second release latch 67 Is disengaged from the pin 64 provided on the second shut-off lever 55. When the locking of the pin 64 by the second tripping latch 67 is released, the second shut-off lever 55 becomes rotatable. However, unlike the case where the closing coil spring 77 of FIG. Since the second shut-off lever 55 is in contact with the pin 87 provided on the closing lever 76, it stops without rotating.

In the state shown in FIG. 29, the closed coil spring 7
7, the input lever 76, the second shut-off lever 5
5. Since the guide 62 is received by a stopper (not shown) in the shock absorber 42 via the link device 47 and the first shut-off lever 52, the engagement of the guide 62 by the first release latch 69 is released, and the rotation by the guide 62 is performed. When the support of the body 59 is lost, the closing coil spring 77 and the rod 7 constituting the closing system
8. The closing lever 76 is free. Then, the closing lever 76 connected to the closing coil spring 77 tries to rotate further clockwise, but stops without generating an impact by contacting the stopper 104 having elasticity, so that the closing lever 76 and the second The shut-off lever 55 does not rotate further clockwise.

In this state, the first shut-off lever 52 rotates counterclockwise, and the guide 62 turns counterclockwise to stop against the stopper (not shown). Link device 4 connecting 52, 55
7 is bent, and finally the first shut-off lever 52 stops short of coming into contact with the pin 58. At this time,
The movable contact 22 is completely separated from the fixed contact 12, and the opening operation is completed.

When the support of the rotating body 59 by the guide 62 is lost, the closing coil spring 77
, That is, the closing lever 76 and the second shut-off lever 55 are prevented from rotating in the clockwise direction beyond a predetermined angle, so that unlike the third embodiment, the first shut-off lever 52 is There is no collision with the pin 58 provided on the second shut-off lever 55. This state is shown in FIG.

Since the circuit breaker operating device according to the fifth embodiment of the present invention is configured as described above, the same effect as that described in the fourth embodiment can be obtained.

Embodiment 6 FIG. A circuit breaker operating device according to Embodiment 6 of the present invention will be described with reference to the drawings. FIG.
36 to 36 show an operating device of a circuit breaker according to Embodiment 6 of the present invention. FIG. 31 is a main part configuration diagram of the operating device of the circuit breaker. This shows a state in which both of the open-circuit coil springs are charged. FIG.
31 is a main part configuration diagram of the circuit breaker operating device, showing a state where the circuit opening operation is being performed from the state of FIG. 31. FIG. 33 is a main part configuration diagram of the operation device of the circuit breaker, in which the circuit breaker is in an open state,
This shows a state in which the closing coil spring is charged and the open coil spring is released.

FIG. 34 is a block diagram of a main part of the circuit breaker operating device, showing a state in which the circuit is being closed from the state of FIG. FIG. 35 is a main part configuration diagram of the circuit breaker operating device, showing a state in which the closing operation is completed, the closing coil spring is released, and the open circuit spring is charged. FIG. 36 is a main part configuration diagram of the operating device of the circuit breaker. In a state where the second opening operation is completed immediately after the high-speed reclosing operation, the circuit breaker is in an open state, and both the closing coil spring and the opening coil spring are in the open state. Indicates a fired state.

In the fourth embodiment shown in FIG. 20 or the fifth embodiment shown in FIG. 26, the lock member 103 is rotatably connected to the closing lever 76 and moves in the vertical direction with the rotation of the closing lever 76. Even if an opening command is input during the closing operation and the tripping electromagnet 20 is excited or the plunger 21 is pushed by mistake,
In the illustrated embodiment, the trip trigger 73 is prevented from rotating, and the first trip latch is not operated during the closing operation of the on-off contact.

In the sixth embodiment, the first shut-off lever 5
2 is provided with a first lock member 200 rotatably connected to the second lock member 200, and the first lock member 200 moves with the rotation of the first shut-off lever 52, so that an open command is input during the closing operation. Even if the tripping electromagnet 20 is excited or the plunger 21 is pushed by mistake,
This prevents the tripping trigger 73 from rotating and opening the circuit, and prevents the first trip latch from operating during the closing operation of the on-off contact.

Although details will be described later, the first shut-off lever 52
The first lock member 200 is connected to the closed coil spring 7 not only during the closing operation as in the fourth or fifth embodiment but also when the circuit breaker in FIG.
When the closing operation is started and the closing lever 76 starts moving in a state in which the open circuit coil spring 60 is released and the open circuit coil spring 60 is released, an open circuit command is just input and the tripping electromagnet 20 is excited or the plunger 21 is released. Even if it is pushed by mistake, the tripping trigger 73 can be prevented from rotating. Accordingly, the locking of the guide 62 by the first release latch 69 is released, so that there is no possibility that the link device 47 loses support and the circuit cannot be closed.

Hereinafter, description will be made with reference to the drawings. FIG. 31 to FIG.
In 6, the reference numeral 200 denotes a rod-shaped first lock member,
Both ends of a rod having a circular cross section are bent at a right angle, and one bent end is rotatably inserted into a hole 52 a provided in the first shut-off lever 52. The other end of the first lock member 200 is connected to the support plate 119 of FIG.
Are inserted into guide grooves of a support plate (not shown) similar to those described above, and move up and down in the guide grooves as the first shut-off lever 52 rotates.

Reference numeral 201 denotes a rotation shaft, 202 denotes a lock plate, and the lock plate 202 is supported so as to be rotatable around the rotation shaft 201. Reference numeral 203 denotes a spring, which urges the lock plate 202 to rotate counterclockwise around the rotation axis 201. For other configurations, see FIG.
Therefore, the same reference numerals are given to the corresponding components, and the description is omitted.

Next, the operation will be described. FIG. 31 shows a state in which the circuit breaker is closed and the closed coil spring 77 and the open coil spring 60 are charged. In this state, the first lock member 200 rotatably connected to the first shut-off lever 52 via the hole 52a is guided by a support plate (not shown) to move upward, and the lock plate 202
Is extruded upward.

Lock plate 202 pushed upward
Rotates clockwise around the rotation axis 201 and stops in a state where the engagement with the trip trigger 73 is released. Since the locking of the trip trigger 73 by the lock plate 202 has been released, the plunger 21 of the trip electromagnet 20 is operated to rotate the trip trigger 73 clockwise, thereby causing the first trip latch 69 to operate. The lock of the guide 62 can be released. That is, in FIG. 31, the circuit breaker is in a state where it can be opened.

FIG. 32 shows a state where the circuit breaker is in the process of being opened from the state shown in FIG. 31, when the trip electromagnet 20 is excited by the open circuit command, the plunger 21 is driven rightward, the trip trigger 73 rotates clockwise, and the guide 62 by the first trip latch 69.
Is released, and the first shut-off lever 52 starts rotating counterclockwise.

As the first shut-off lever 52 rotates counterclockwise, the first lock member 200 moves downward while being guided by a support plate (not shown). At this time, following the downward movement of the first lock member 200, the lock plate 202 is pushed by the spring 203 and rotates counterclockwise around the rotation shaft 201. Then, the first lock member 2
00 moves further downward and separates from the lock plate 202. With the rotation of the first shut-off lever 52 in the counterclockwise direction, the second shut-off lever 55 also rotates in the counterclockwise direction and finally comes into contact with the pin 87 of the closing lever 76 and stops. At this time, in the same manner as described in the first embodiment, the guide 62 rotates clockwise and returns, and the pin 66 provided on the guide 62 is released via the first release latch 69 to the release trigger 73. Is locked. In addition, trip trigger 7
3 is locked by the lock plate 202 rotated counterclockwise.

Then, the circuit breaker completes the opening operation, the closing coil spring 77 is charged, and the opening coil spring 60
Is released as shown in FIG. In this state, the lock plate 202 locks the tripping trigger 73, and the locking of the tripping trigger 73 prevents the tripping trigger 73 from rotating clockwise around the rotation shaft 74. Lock of the guide 62 cannot be released.

FIG. 34 shows a state where the closing operation is being performed from the state shown in FIG. 33. When the closing electromagnet 16 is excited, the closing trigger 83 is pushed by the plunger 17 and rotates counterclockwise. And the closing latch 7 by the closing trigger 83
When the engagement of the lock 9 is released, the closing lever 76 rotates clockwise about the rotation shaft 51 by the urging force of the closing coil spring 77.

When the pin 87 fixed to the closing lever 76 pushes the second shut-off lever 55, the second shut-off lever 55 is rotated clockwise around the rotation shaft 51 together with the link device 47 and the first shut-off lever 52. Rotating and linking device 4
The rotating body 59 moves while contacting the arc surface 62 a of the guide 62.

As the first shut-off lever 52 rotates clockwise, the first lock member 200 moves upward again and pushes the lock plate 202 upward just before the completion of the closing operation to rotate around the rotation shaft 201. Rotate clockwise to release the lock of the release trigger 73 by the lock plate 202. FIG. 35 shows a state in which the closing operation has been completed. In this state, the trip trigger 7 by the lock plate 202
Since the lock of 3 is released, the next opening operation can be performed.

Next, when an open command is issued from the closed state shown in FIG. 35, the plunger 21 of the tripping electromagnet 20 is turned on.
Pushes the tripping trigger 73 rightward, and the tripping trigger 73 rotates clockwise around the rotation axis 74. Trip trigger 7
By the rotation of 3, the lock of the guide 62 by the first tripping latch 69 is released, and the guide 62 is rotated around the rotation shaft 63 while being pressed by the rotating body 59 receiving the force from the open-circuit coil spring 60. Rotate clockwise.

The second shut-off lever 55 cannot be moved since it is pushed by a pin 87 provided on the closing lever 76 to which a clockwise rotational force is given by the closing coil spring 77, but the open-circuit coil spring 77 does not move. The first shut-off lever 52 receiving the force from 60 rotates counterclockwise around the rotation axis 51 due to the bending of the link device 47, and the state shown in FIG. 36 is obtained.

The energy storing operation of the closing coil spring 77 is the same as that of the fifth embodiment shown in FIG. 26, but a slightly supplementary explanation will be given. The energy stored in the closing coil spring 77 is shown in FIG.
5 or from the state in which the closed coil spring 77 in FIG. 36 is released. First, a case where the closing coil spring 77 is charged from the state of FIG. 35 will be described. The lever 88 (FIG. 2) is rotated counterclockwise around the main shaft 51 by the energy storage device shown in FIG. Then, the closing lever 76 integrated with the lever 88 is also rotated counterclockwise around the main shaft 51.

The closing lever 76 moves while rotating in the counterclockwise direction while the pin 82 provided on the closing lever 76 abuts on the end face of the closing latch 79 and slides. Is rotated counterclockwise by the spring 81 to engage the pin 82. At the same time, the closing trigger 83 is rotated clockwise by the spring 85 and the pin 86
, The closing lever 76 is held, and the closed-circuit coil spring 77 is held in an energized state, resulting in the state of FIG.

In the state shown in FIG. 35, the guide 62 returns and is locked by the first release latch 69 and the second
Is locked to the second tripping latch 67. Therefore, even if the closing lever 76 is rotated counterclockwise, the second shut-off lever 55 and the first shut-off lever 5
2 does not move. Therefore, the first lock member 200 connected to the first shut-off lever 52 maintains the state shown in FIG. 35, and the lock plate 202 remains in the same state as that shown in FIG. It is.

Also, from the state shown in FIG.
In the case of accumulating the energy, the spring 65 pushes the rotating body 59 via the guide 62 toward the main shaft 51 as the input lever 76 is rotated counterclockwise by the energy accumulating device, so that the second energy is accumulated. The blocking lever 55 rotates counterclockwise while abutting against a pin 87 provided on the closing lever 76.
The guide 62 is driven by the rotating body 59 by the force of the spring 65.
Is pressed and rotated clockwise to return, and is locked by the first release latch 69 and the release trigger 73.

The closing lever 76 moves while the pin 82 abuts on the end face of the closing latch 79 and slides during the rotation of the closing lever 76 in the counterclockwise direction.
Is rotated counterclockwise by the spring 81, and the closing lever 7 is rotated.
6 is engaged with a pin 82 provided on the same. Further, the closing trigger 83 is rotated clockwise by the spring 85 to rotate the pin 86
33, the closing lever 76 is held, the closed-circuit coil spring 77 is held in the charged state, and the state shown in FIG.

When the second interrupting lever 55 and the closing lever 76 rotate counterclockwise as described above, the open circuit coil spring 60 is in the released state, so that the first interrupting lever 52 and the first locking member 200 does not move from the position of FIG.
It is in the same state as FIG. The other operations are the same as those in the fifth embodiment shown in FIG.

Since the circuit breaker operating device according to Embodiment 6 of the present invention is configured as described above, the same effects as those described in Embodiments 4 and 5 can be obtained.

In the fourth or fifth embodiment described above, the movement of the trip trigger 73 is restricted by the lock member 103 interlocking with the closing lever 76. As shown in FIG. 22 or FIG. When the torsion bar or the open circuit coil spring 60 is in a state of being released and the closing torsion bar or the open circuit coil spring 77 is compressed and stored so that the circuit can be closed, the lock member 103 restrains the release trigger 73. Not.

Therefore, when the closing trigger 83 is driven to perform the closing operation in this state, the trip trigger 7
3 is operated, the guide 62 is unlocked by the first release latch 69, and the link device 47 loses support.
Unable to close.

On the other hand, according to the sixth embodiment,
First lock member 20 interlocked with first shut-off lever 52
In the state where the open circuit coil spring 60 is released and the closed circuit coil spring 77 is energized and the circuit can be closed as shown in FIG. Therefore, the trip trigger 73 cannot be operated.

Accordingly, when the circuit breaker shown in FIG. 33 is in the open state and the closing coil spring 77 is charged and the open circuit coil spring 60 is released, when the closing operation is started and the closing lever 76 starts to move, Even when the opening command is input and the tripping electromagnet 20 is excited or the plunger 21 is erroneously pressed, the locking of the guide 62 by the first tripping latch 69 can be prevented from being released. There is no possibility that the link device 47 loses its support and cannot be closed.

In the fourth embodiment shown in FIG. 20 using a torsion bar as the energy storage means, the same effect can be obtained even if the first lock member 200 is connected to the first shut-off lever 52.

Embodiment 7 FIG. A circuit breaker operating device according to Embodiment 7 of the present invention will be described with reference to the drawings. FIG.
42 to 42 show a device for operating a circuit breaker according to Embodiment 7 of the present invention. FIG. 37 is a main part configuration diagram of the device for operating a circuit breaker. This shows a state in which both of the open-circuit coil springs are charged. FIG.
37 is a main part configuration diagram of the circuit breaker operating device, and shows a state where the circuit opening operation is being performed from the state of FIG. 37. FIG. 39 is a main part configuration diagram of an operating device of the circuit breaker, in which the circuit breaker is in an open state,
This shows a state in which the closing coil spring is charged and the open coil spring is released.

FIG. 40 is a block diagram of a main part of the circuit breaker operating device, showing a state where the circuit is being closed from the state of FIG. FIG. 41 is a main part configuration diagram of the circuit breaker operating device, showing a state in which the closing operation is completed, the closing coil spring is released, and the open circuit spring is charged. FIG. 42 is a main part configuration diagram of the operating device of the circuit breaker. In a state where the second opening operation is completed immediately after the high-speed reclosing operation, the circuit breaker is in the open state, and both the closing coil spring and the opening coil spring are in the open state. Indicates a fired state.

In the circuit breaker operating device shown in each of the above embodiments, for example, in FIG. 26, the on-off contact 10 is in a closed state, and the open-circuit coil spring 60 is charged in order to perform an open-circuit operation next. Have been. The closing coil spring 77 is also charged for the re-closing operation after the opening.
In this state, the pin 87 provided on the closing lever 76 is
Is in a state away from the second shut-off lever 55 to the right as shown in FIG. In this state, if the plunger 17 of the closing electromagnet 16 is moved by mistake, for example, manually, the locking of the closing latch 79 by the closing trigger 83 is released.

Then, the closing lever 76 receiving the clockwise rotational force from the closing coil spring 77 via the rod 78 rapidly rotates clockwise with no load, and the pin provided on the closing lever 76 is rotated. 87 is the second shut-off lever 55
And a large impact force is generated. Therefore, the closing lever 76 and the second shut-off lever 55 are designed to withstand this impact.
It is necessary to make the input parts such as the solid ones, and there are restrictions on the small size and light weight.

In the seventh embodiment, the second lock member 210 connected to the first shut-off lever is provided, and the open-circuit coil spring 60 and the open-circuit coil spring 77 are both energized when the circuit breaker is in the closed state. In this state, even if the plunger 17 of the closing electromagnet 16 is erroneously moved, the turning operation of the closing lever 76 is prevented. Thus, the closing lever 76 is rotated clockwise so that the pin 87 provided on the closing lever 76 does not collide with the second shut-off lever 55 to generate an impact, thereby enabling a small and lightweight operating device. Things.

Hereinafter, the figures will be specifically described.
37 to 42, reference numeral 210 denotes a rod-shaped second lock member. Both ends of a rod having a circular cross section are bent at a right angle, and one bent end is provided on the first shut-off lever 52. It is rotatably inserted into the formed hole 52b. The other end of the second lock member 210 is inserted into a guide groove of a support plate (not shown) similar to the support plate 119 of FIG. Move up and down.

Reference numeral 211 denotes a connection pin, and 212 denotes a trigger lever. The trigger lever 212 is rotatably connected to the plunger 17 via the connection pin 211. A spring 213 urges the trigger lever 212 to rotate counterclockwise around the connection pin 211. Other configurations are the same as those of the third embodiment shown in FIG. 15 and the fifth embodiment shown in FIG. 26, and the corresponding components are denoted by the same reference numerals and description thereof will be omitted.

Next, the operation will be described. FIG. 37 shows a state in which the circuit breaker is closed, and the closed coil spring 77 and the open coil spring 60 are charged. In this state, the second lock member 210 rotatably connected to the first shut-off lever 52 via the hole 52b is guided by a support plate (not shown) to move downward, and moves the trigger lever 212 downward. Extruded. The trigger lever 212 that has been pushed downward is stopped while rotating clockwise around the connecting pin 211.

Therefore, the plunger 1 of the input electromagnet 16
Since the trigger lever 212 does not come into contact with the closing trigger 83 even when the shutter 7 moves, the closing latch 79
Is not released, and the closing coil spring 77 does not release. That is, in this state, the plunger 17
Is operated, the pin 87 provided on the closing lever 76 does not collide with the second shut-off lever 55 due to the release of the closing coil spring 77.

FIG. 38 shows a state where the circuit breaker is in the process of opening from the state of FIG. 37, when the tripping electromagnet 20 is excited by the open circuit command, the plunger 21 is driven rightward, the tripping trigger 73 rotates clockwise, and the guide 62 by the first tripping latch 69 is rotated.
Is released, and the first shut-off lever 52 starts rotating counterclockwise. With the counterclockwise rotation of the first shut-off lever 52, the second lock member 210 is moved upward by being guided by a support plate (not shown).

Following the upward movement of the second lock member 210, the trigger lever 212 rotates counterclockwise around the connecting pin 211 by the spring 213, and the trigger lever 212 and the plunger 17 become linear. . After that, the second lock member 210 moves further upward and separates from the trigger lever 212. Then, the circuit breaker completes the opening operation, the closed coil spring 77 is charged, and the open coil spring 60 is released, as shown in FIG. 39.

In this state, the trigger lever 212 and the plunger 17 become linear, and by driving the plunger 17 to the right, the closing trigger 83 is driven to rotate counterclockwise around the rotation shaft 84 to close the circuit. Operation is possible.

Next, FIG. 40 shows a state where the closing operation is being performed from the state of FIG. 39. When the closing electromagnet 16 is excited, the trigger lever 212 drives the closing trigger 83 to rotate counterclockwise. When the closing trigger 83 rotates counterclockwise, the locking of the closing latch 79 by the closing trigger 83 is released, and the closing lever 76 rotates clockwise around the rotation shaft 51 by the urging force of the closing coil spring 77.

[0209] When the pin 87 fixed to the closing lever 76 pushes the second shut-off lever 55, the second shut-off lever 55 is rotated clockwise around the rotation shaft 51 together with the link device 47 and the first shut-off lever 52. Rotating and linking device 4
The rotating body 59 moves while contacting the arc surface 62 a of the guide 62.

With the clockwise rotation of the first shut-off lever 52, the second lock member 210 moves downward again, and pushes the trigger lever 212 downward immediately before the completion of the closing operation to rotate clockwise around the connecting pin 211. The trigger lever 212 does not come into contact with the closing trigger 83 even when the plunger 17 is moved to the right. FIG. 41 shows a state in which the closing operation has been completed.

Next, when an open command is issued from the closed state shown in FIG. 41, the plunger 21 of the tripping electromagnet 20 is released.
Pushes the tripping trigger 73 rightward, and the tripping trigger 73 rotates clockwise around the rotation axis 74. Trip trigger 7
By the rotation of 3, the lock of the guide 62 by the first release latch 69 is released, and the guide 62 is rotated counterclockwise around the rotation shaft 63 while being pushed by the rotating body 59 receiving a force from the open-circuit coil spring 60. Rotate in the direction.

The second shut-off lever 55 cannot be moved because it is pressed by a pin 87 provided on the closing lever 76 to which a clockwise rotational force is applied by the closing coil spring 77, but the open-circuit coil spring 77 does not move. The first shut-off lever 52 receiving the force from 60 rotates counterclockwise around the rotation shaft 51 due to the bending of the link device 47.

When the first shut-off lever 52 rotates counterclockwise, the second lock member 210 connected to the first shut-off lever 52 is moved upward again by being guided by the support plate. The trigger lever 212 is rotated by the spring 213 in a clockwise direction around the connecting pin 211,
12 and plunger 17 are linear. The second lock member 210 moves further upward, and the trigger lever 21
Leave 2 This state is shown in FIG.

The energy storing operation of the closing coil spring 77 is the same as that of the third embodiment shown in FIG. 15, but a supplementary explanation will be given. The energy stored in the closing coil spring 77 is shown in FIG.
This is performed from the state where the closing coil spring 77 of FIG. First, a case where the closed coil spring 77 is charged from the state of FIG. 41 will be described. The lever 88 (FIG. 2) is rotated counterclockwise around the main shaft 51 by the energy storage device shown in FIG. Then, the closing lever 76 integrated with the lever 88 is also rotated counterclockwise around the main shaft 51.

When the closing lever 76 is rotated counterclockwise, the pin 82 provided on the closing lever 76 comes into contact with the end face of the closing latch 79 and slides and moves. Is rotated counterclockwise by a spring 81 to engage with a pin 82 provided on a closing lever 76. At the same time, the closing trigger 83 is rotated clockwise by the spring 85 to engage with the pin 86, and the closing lever 76 is rotated.
Is held, the closed-circuit coil spring 77 is held in the charged state, and the state shown in FIG. 37 is reached.

In the state shown in FIG. 41, the guide 62 returns and is locked by the first release latch 69 and the second
Is locked to the second tripping latch 67. Therefore, even if the closing lever 76 is rotated counterclockwise, the second shut-off lever 55 and the first shut-off lever 5
2 does not move. Therefore, the second lock member 210 connected to the first shut-off lever 52 maintains the state shown in FIG.

That is, the trigger lever 212 is pushed downward by the second lock member 210, and the plunger 1
Since the trigger lever 212 does not come into contact with the closing trigger 83 even if 7 moves, the locking of the closing latch 79 is not released, and the state in which the closing coil spring 77 is not released is maintained. This state is shown in FIG.

Further, from the state shown in FIG.
In the case of accumulating the energy, the spring 65 pushes the rotating body 59 via the guide 62 toward the main shaft 51 as the input lever 76 is rotated counterclockwise by the energy accumulating device, so that the second energy is accumulated. The blocking lever 55 rotates counterclockwise while abutting against a pin 87 provided on the closing lever 76.
The guide 62 is driven by the rotating body 59 by the force of the spring 65.
Is pressed and rotated clockwise to return, and is locked by the first release latch 69 and the release trigger 73.

The closing lever 76 moves while the pin 82 comes into contact with the end face of the closing latch 79 and slides during the rotation of the closing lever 76 in the counterclockwise direction.
9 rotates counterclockwise by a spring 81 and engages with a pin 82 provided on a closing lever 76. Further, the closing trigger 83 is rotated clockwise by the spring 85 so that the pin 8
6, the closing lever 76 is held, the closed-circuit coil spring 77 is held in an energized state, and the state shown in FIG.

As the closing trigger 83 rotates clockwise and engages with the pin 86, the closing trigger 83 returns to a position where it can be driven by the trigger lever 212 which is linear with respect to the plunger 17. . Other operations are the same as in the third embodiment.

According to the seventh embodiment, the second lock member 210 is connected to the first shut-off lever 52, and the second lock member 210 is mechanically linked with the rotation of the first shut-off lever 52. With this simple configuration, the closing trigger 83 is driven by the trigger lever 212 and the closing trigger 8 is driven.
3 can be prevented from being unlocked. Therefore, when the circuit breaker is in the closed state and both the open coil spring 60 and the closed coil spring 77 are in a state of being charged, even if the plunger 17 of the closing electromagnet 16 is erroneously moved, the rotation of the closing lever 76 is performed. Can be prevented.

As a result, the pin 87 does not collide with the second shut-off lever 55 to generate an impact.
6, the mechanical strength of components such as the pin 87 and the second shut-off lever 55 can be reduced, and the size and weight can be reduced.

Embodiment 8 FIG. An operation device of a circuit breaker according to Embodiment 8 of the present invention will be described with reference to the drawings. FIG.
48 to 48 show a circuit breaker operating device according to Embodiment 7 of the present invention. FIG. 43 is a main part configuration diagram of the circuit breaker operating device. This shows a state in which both the bar and the torsion bar for opening are charged. FIG. 44 is a main part configuration diagram of the circuit breaker operating device, showing a state where the circuit opening operation is being performed from the state of FIG. 43. FIG. 45 is a main part configuration diagram of the operation device of the circuit breaker. In the state where the circuit breaker is in an open state, the torsion bar for closing is energized,
This shows a state in which the torsion bar for opening is released.

FIG. 46 is a block diagram of a main part of the circuit breaker operating device, showing a state in which the circuit is being closed from the state of FIG. FIG. 47 is a main part configuration diagram of the circuit breaker operating device, showing a state where the closing operation is completed, the closing torsion bar is released, and the opening torsion bar is charged. FIG. 48 is a main part configuration diagram of the operating device of the circuit breaker. In a state where the second opening operation is completed immediately after the high-speed reclosing operation, the circuit breaker is in an open state, and a torsion bar for closing and a circuit for opening the circuit are used. This shows a state in which both torsion bars are released.

In the eighth embodiment, the operating device of the circuit breaker using the torsion bar as the energy storage means shown in the first embodiment is connected to the first breaking lever 52 shown in the seventh embodiment. The second lock member 210 is provided, and it is possible to reduce the size and weight of a circuit breaker operating device using a torsion bar as the energy storage means.

Hereinafter, description will be made with reference to the drawings. Figures 43-48
, One end of a torsion bar for closing is fixed inside the input shaft 109. The torsion bar is
It is not shown in FIGS. 43 to 48 (see the torsion bar 35 in FIG. 4). The lever 110 fixed to the input shaft 109 receives a biasing force for rotating clockwise from the torsion bar. The closing lever 76 is rotatably provided around the main shaft 51, is connected to the lever 110 via a link 111 and a pin 112, and receives a biasing force from the torsion bar to rotate clockwise.

The other configuration is the same as that of the second embodiment shown in FIG. 10 and the seventh embodiment shown in FIG. 37, and the same components are denoted by the same reference characters and description thereof is omitted. . In FIGS. 43 to 48, FIG.
The illustration of the housing 1 and the stopper 104 shown in FIG. Also, the operation is the same as that of the seventh embodiment, and the description is omitted.

Embodiment 9 FIG. A circuit breaker operating device according to Embodiment 9 of the present invention will be described with reference to the drawings. FIG.
FIG. 55 to FIG. 55 show an operating device of a circuit breaker according to Embodiment 9 of the present invention, and FIG. 49 is a main part configuration diagram of the operating device of the circuit breaker. This shows a state in which both of the open-circuit coil springs are charged. FIG.
FIG. 50 is a configuration diagram of a main part of the circuit breaker operating device, showing a state in which a circuit opening operation is being performed from the state of FIG. 49. FIG. 51 is a main part configuration diagram of an operation device of the circuit breaker, in which the circuit breaker is in an open state,
This shows a state in which the closing coil spring is charged and the open coil spring is released.

FIG. 52 is a block diagram of a main part of the circuit breaker operating device, showing a state where the circuit closing operation is being performed from the state of FIG. 51. FIG. 53 is a main part configuration diagram of the circuit breaker operating device, showing a state in which the closing operation has been completed, the closing coil spring has been released, and the open circuit spring has been charged. FIG. 54 is a main part configuration diagram of the operating device of the circuit breaker. In a state where the second opening operation is completed immediately after the high-speed reclosing operation, the circuit breaker is in the open state, and both the closing coil spring and the opening coil spring are in the open state. Indicates a fired state. FIG. 55 is a partially enlarged view showing a detailed configuration of the second lock member.

In the seventh embodiment shown in FIG. 37 and the eighth embodiment shown in FIG. 43, the second lock member 210 moves up and down to rotate the trigger lever 212,
The plunger 17 does not drive the closing trigger 83 and prevents the locking of the closing lever 76 by the closing latch 79 from being released. On the other hand, in the ninth embodiment, the operation of the plunger 317 is restricted by the second
7 prevents the closing trigger 83 from being driven and prevents the locking of the closing lever 76 by the closing latch 79 from being released.

Hereinafter, the figures will be specifically described.
49 to 55, reference numeral 310 denotes a second lock member having a rod shape. Both ends of a rod having a circular cross section are bent at right angles, and one bent end is provided on the first shut-off lever 52. It is rotatably inserted into the formed hole 52b. As shown in FIG. 55, an insertion pin 310a having a circular cross section is attached to the other bent end of the second lock member 310.
Are fixed at right angles, and the tip end thereof is inserted into the guide groove of the support plate 119 similar to that shown in FIG. 21, and the inside of the guide groove is vertically moved with the rotation of the first shut-off lever 52. Go to

Reference numeral 16 denotes a closing electromagnet, 317 denotes a plunger, and the left portion of the plunger 317 inserted into the closing electromagnet 16 has a rod shape having a circular cross section, and the right portion thereof corresponds to FIG.
As shown in FIG. 5, a hole 317a having a rectangular cross section and forming a circular hole is provided. The insertion pin 310a of the second lock member 310 that moves in the up-down direction can be inserted into the hole 317a. Other configurations are the same as those of the seventh embodiment shown in FIG. 37, and the corresponding components are denoted by the same reference characters and description thereof will be omitted.

Next, the operation will be described. FIG. 49 shows a state in which the circuit breaker is closed and the closed coil spring 77 and the open coil spring 60 are charged. In this state, the second lock member 310 rotatably connected to the second shut-off lever 52 through the hole 52b is attached to the support plate 119.
The insertion pin 310a is inserted into the hole 317a of the plunger 317.

Therefore, even if the closing electromagnet 16 is excited or moved by hand, the plunger 17 does not move and the closing trigger 83 cannot be rotated. Therefore, the locking of the closing latch 79 by the closing trigger 83 is not released,
The closing coil spring 77 does not release. That is,
In this state, even if the plunger 17 is operated by mistake, it cannot be operated.
The pin 87 provided on the closing lever 76 by the release of
There is no collision with the second shut-off lever 55.

FIG. 50 shows a state where the circuit breaker is in the process of being opened from the state shown in FIG. 49, when the tripping electromagnet 20 is excited by the open circuit command, the plunger 21 is driven rightward, the tripping trigger 73 rotates clockwise, and the guide 62 by the first tripping latch 69 is rotated.
Is released, and the first shut-off lever 52 starts rotating counterclockwise. With the counterclockwise rotation of the first shut-off lever 52, the second lock member 310 becomes
(FIG. 55), it moves upward.

When the second lock member 310 moves upward, the insertion pin 310a also moves upward, and the hole 317a
And the second lock member 310 moves further upward. Then, the circuit breaker completes the open circuit operation, the closed circuit coil spring 77 is charged, and the open circuit coil spring 60 is released as shown in FIG. In this state, since the plunger 317 is released from the restraint by the insertion pin 310a, the closing trigger is rotated counterclockwise around the rotation shaft 84 by driving the plunger 317 rightward, thereby closing the circuit. Is possible.

Next, FIG. 52 shows a state in which the closing operation is being performed from the state of FIG. 51. When the closing electromagnet 16 is excited, the plunger 317 is driven rightward and the closing trigger 83 is turned counterclockwise. Is driven to rotate. When the closing trigger 83 rotates counterclockwise, the locking of the closing latch 79 by the closing trigger 83 is released, and the closing lever 76 rotates clockwise around the rotation shaft 51 by the urging force of the closing coil spring 77.

When the pin 87 fixed to the closing lever 76 pushes the second shut-off lever 55, the second shut-off lever 55 is rotated clockwise around the rotation shaft 51 together with the link device 47 and the first shut-off lever 52. Rotating and linking device 4
The rotating body 59 moves while contacting the arc surface 62 a of the guide 62.

With the clockwise rotation of the first shut-off lever 52, the second lock member 310 moves downward again, and immediately before the closing operation is completed, the insertion pin 310a of the second lock member 310 is moved to the plunger 317. Is inserted into the hole 317a, the plunger 317 cannot be moved even if the plunger 317 is moved to the right, so that there is no possibility of performing a closing operation. FIG. 53 shows a state in which the closing operation has been completed.

Next, when an open command is issued from the closed state shown in FIG. 53, the plunger 21 of the tripping electromagnet 20 is moved.
Pushes the tripping trigger 73 rightward, and the tripping trigger 73 rotates clockwise around the rotation axis 74. Trip trigger 7
By the rotation of 3, the lock of the guide 62 by the first release latch 69 is released, and the guide 62 is rotated counterclockwise around the rotation shaft 63 while being pushed by the rotating body 59 receiving a force from the open-circuit coil spring 60. Rotate in the direction.

The second shut-off lever 55 cannot be moved because it is pushed by a pin 87 provided on the closing lever 76 to which a clockwise rotational force is applied by the closing coil spring 77, but the open-circuit coil spring 77 does not move. The first shut-off lever 52 receiving the force from 60 rotates counterclockwise around the rotation shaft 51 due to the bending of the link device 47. When the first shut-off lever 52 rotates counterclockwise, the second lock member 310 connected to the first shut-off lever 52 is guided by the support plate 119 and moves upward again. Accordingly, the insertion pin 310a of the second lock member 310 comes out of the hole 317a of the plunger 317. This state is shown in FIG.

The energizing operation of the closing coil spring 77 is the same as that of the seventh embodiment shown in FIG. 37, but a slightly supplementary explanation will be given. The energy stored in the closing coil spring 77 is shown in FIG.
3 or from the state in which the closed coil spring 77 of FIG. 54 is released. First, the case where the closing coil spring 77 is charged from the state of FIG. 53 will be described. The lever 88 (FIG. 2) is rotated counterclockwise around the main shaft 51 by the energy storage device shown in FIG. Then, the closing lever 76 integrated with the lever 88 is also rotated counterclockwise around the main shaft 51.

The closing lever 76 moves while rotating in the counterclockwise direction while the pin 82 provided on the closing lever 76 comes into contact with the end face of the closing latch 79 and slides. Is rotated counterclockwise by a spring 81 to engage with a pin 82 provided on a closing lever 76. At the same time, the closing trigger 83 is rotated clockwise by the spring 85 to engage with the pin 86, and the closing lever 76 is rotated.
Is held, and the closed-circuit coil spring 77 is held in the charged state, and the state shown in FIG. 49 is obtained.

In the state shown in FIG. 53, the guide 62 returns and is locked by the first release latch 69 and the second
Is locked to the second tripping latch 67. Therefore, even if the closing lever 76 is rotated counterclockwise, the second shut-off lever 55 and the first shut-off lever 5
2 does not move. Therefore, the second lock member 310 connected to the first shut-off lever 52 maintains the state shown in FIG. That is, the insertion pin 310a is
17, the plunger 317 does not move even if the plunger 317 is moved. Therefore, the locking of the closing lever 76 by the closing latch 79 is not released, and the closing coil spring 7 is closed.
7 remain unfired. This state
FIG.

Further, from the state shown in FIG.
In the case of accumulating the energy, the spring 65 pushes the rotating body 59 via the guide 62 toward the main shaft 51 as the input lever 76 is rotated counterclockwise by the energy accumulating device, so that the second energy is accumulated. The blocking lever 55 rotates counterclockwise while abutting against a pin 87 provided on the closing lever 76.
The guide 62 is driven by the rotating body 59 by the force of the spring 65.
Is pressed and rotated clockwise to return, and is locked by the first release latch 69 and the release trigger 73.

The closing lever 76 moves while the pin 82 comes into contact with the end face of the closing latch 79 and slides during the rotation in the counterclockwise direction.
9 rotates counterclockwise by a spring 81 and engages with a pin 82 provided on a closing lever 76. Further, the closing trigger 83 is rotated clockwise by the spring 85 so that the pin 8
6, the closing lever 76 is held, and the closed-circuit coil spring 77 is held in the charged state. In addition, closing trigger 8
As the pin 3 rotates clockwise and engages the pin 86, the closing trigger 83 returns to a position where it can be driven by the plunger 317. This state is shown in FIG. Other operations are the same as in the seventh embodiment.

According to the ninth embodiment, the second lock member 310 is connected to the first shut-off lever 52, and the second lock member 310 is mechanically linked with the rotation of the first shut-off lever 52. Plunger 3
17 can be restrained so as not to move, and the closing trigger 83 is driven to prevent the locking of the closing latch 79 by the closing trigger 83 from being released. Therefore, FIG.
The circuit breaker is in a closed state as shown in FIG.
When both the closing coil spring 77 and the closing coil spring 77 are in the charged state, the plunger 317 of the closing electromagnet 16 is not moved by mistake, so that the closing lever 76 can be prevented from rotating.

As a result, since the pin 87 does not collide with the second shut-off lever 55 to generate an impact, the closing lever 7
6, the mechanical strength of components such as the pin 87 and the second shut-off lever 55 can be reduced, and the size and weight can be reduced.

Embodiment 10 FIG. Embodiment 1 of the present invention
The operating device of the circuit breaker according to 0 is described with reference to the figures. 56 to 61 show an operating device of a circuit breaker according to Embodiment 10 of the present invention. FIG. 56 is a main part configuration diagram of the operating device of the circuit breaker. This shows a state in which both the spring and the open-circuit coil spring are charged.
FIG. 57 is a main part configuration diagram of the circuit breaker operating device.
5 shows a state in which the circuit is being opened from the state shown in FIG. FIG. 58 is a main part configuration diagram of the circuit breaker operating device, showing a state in which the circuit breaker is in an open state, the closed circuit coil spring is charged, and the open circuit coil spring is released.

FIG. 59 is a block diagram of a main part of the circuit breaker operating device, showing a state in which the circuit is being closed from the state of FIG. FIG. 60 is a main part configuration diagram of the circuit breaker operating device, showing a state in which the closing operation is completed, the closing coil spring is released, and the open circuit spring is charged. FIG. 61 is a main part configuration diagram of the operation device of the circuit breaker. In a state where the second opening operation is completed immediately after the high-speed reclose operation, the circuit breaker is in an open state, and both the closing coil spring and the opening coil spring are in the open state. Indicates a fired state.

In the tenth embodiment, the first lock member 200 connected to the first shut-off lever 52 shown in the sixth embodiment is different from the first lock lever 200 shown in the seventh embodiment.
The second lock member 210 is provided with both the second lock member 210 and the second lock member 210, thereby enabling the operating device to be further reduced in size and weight.

The following is a description with reference to the drawings. FIG. 56 to FIG.
In 1, the reference numeral 200 denotes a rod-shaped first lock member,
Both ends of a rod having a circular cross section are bent at a right angle, and one bent end is rotatably inserted into a hole 52 a provided in the first shut-off lever 52. The other end of the first lock member 200 is connected to the support plate 119 of FIG.
Are inserted into guide grooves of a support plate (not shown) similar to those described above, and move up and down in the guide grooves as the first shut-off lever 52 rotates.

Reference numeral 201 denotes a rotating shaft, 202 denotes a lock plate, and the lock plate 202 is supported so as to be rotatable around the rotating shaft 201. Reference numeral 203 denotes a spring, which urges the lock plate 202 to rotate counterclockwise around the rotation axis 201.

Reference numeral 210 denotes a rod-shaped second lock member.
Both ends of a rod having a circular cross section are bent at a right angle, and one bent end is rotatably inserted into a hole 52 b provided in the first shut-off lever 52. The other end of the second lock member 210 is connected to the support plate 119 of FIG.
Are inserted into guide grooves of a support plate (not shown) similar to those described above, and move up and down in the guide grooves as the first shut-off lever 52 rotates.

Reference numeral 212 denotes a trigger lever, and 211 denotes a connecting pin. The trigger lever 212 is rotatably connected to the plunger 17 via the connecting pin 211. A spring 213 urges the trigger lever 212 to rotate counterclockwise around the connection pin 211. Other configurations are the same as those of the sixth embodiment shown in FIG. 31 and the seventh embodiment shown in FIG. 37, and the same components are denoted by the same reference numerals and description thereof will be omitted.

Next, the operation will be described. FIG. 56 shows a state in which the circuit breaker is closed, and the closed coil spring 77 and the open coil spring 60 are charged. In this state, the first lock member 200 rotatably connected to the first shut-off lever 52 via the hole 52a is guided by a support plate (not shown) to move upward, and the lock plate 202
Is extruded upward.

Lock plate 202 pushed upward
Rotates clockwise around the rotation axis 201 and stops in a state where the engagement with the trip trigger 73 is released. Since the locking of the trip trigger 73 by the lock plate 202 has been released, the plunger 21 of the trip electromagnet 20 is operated to rotate the trip trigger 73 clockwise, thereby causing the first trip latch 69 to operate. The lock of the guide 62 can be released. That is, in FIG. 56, the circuit breaker is in a state where it can be opened.

In the state shown in FIG. 56, the second lock member 210 rotatably connected to the second shut-off lever 52 through the hole 52b is guided by a support plate (not shown) to move downward. , The trigger lever 212 is pushed downward. The trigger lever 212 that has been pushed downward is stopped while rotating clockwise around the connecting pin 211.

Therefore, the plunger 1 of the input electromagnet 16
Since the trigger lever 212 does not come into contact with the closing trigger 83 even when the shutter 7 moves, the closing latch 79
Is not released, and the closing coil spring 77 does not release. That is, in this state, the plunger 17
Is operated, the pin 87 provided on the closing lever 76 does not collide with the second shut-off lever 55 due to the release of the closing coil spring 77.

FIG. 57 shows a state where the circuit breaker is in the process of opening from the state of FIG. 56. When the trip electromagnet 20 is excited from the state shown in FIG. 56 by the open circuit command, the plunger 21 is driven rightward, the trip trigger 73 rotates clockwise, and the guide 62 by the first trip latch 69.
Is released, and the first shut-off lever 52 starts rotating counterclockwise.

As the first shut-off lever 52 rotates counterclockwise, the first lock member 200 moves downward while being guided by a support plate (not shown). First lock member 20
Following the downward movement of 0, the lock plate 202 is pushed by the spring 203 and rotates counterclockwise around the rotation shaft 201 to lock the trip trigger 73.

Thereafter, the first lock member 200 moves further downward and separates from the lock plate 202. Then, the circuit breaker completes the opening operation, the closing coil spring 77 is charged, and the opening coil spring 60 is released.
The state shown in is shown. In this state, the lock plate 20
2 locks the trip trigger 73, which prevents the trip trigger 73 from rotating clockwise around the rotation shaft 74, and locks the guide 62 by the first trip latch 69. Cannot be released.

Further, as the first shut-off lever 52 rotates counterclockwise, the second lock member 210 is guided by a support plate (not shown) and moves upward. Following the upward movement of the second lock member 210, the trigger lever 21
2 rotates counterclockwise around the connecting pin 211 by the spring 213, so that the trigger lever 212 and the plunger 17 become linear. After that, the second lock member 210 moves further upward and separates from the trigger lever 212.

Then, the circuit breaker completes the open circuit operation, the closed coil spring 77 is charged, and the open coil spring 60 is closed.
Is released as shown in FIG. In this state, the trigger lever 212 and the plunger 17 are linear,
By driving the plunger 17 to the right, the closing trigger 83 is driven to rotate counterclockwise around the rotation axis 84, thereby enabling a closing operation.

When the closing electromagnet 16 is excited,
The trigger lever 212 drives the closing trigger 83 to rotate counterclockwise. When the closing trigger 83 rotates counterclockwise, the locking of the closing latch 79 by the closing trigger 83 is released, and the closing lever 7 is released by the urging force of the closing coil spring 77.
6 rotates clockwise around the rotation axis 51.

When the pin 87 fixed to the closing lever 76 pushes the second shut-off lever 55, the second shut-off lever 55 is rotated clockwise around the rotation shaft 51 together with the link device 47 and the first shut-off lever 52. Rotating and linking device 4
The rotating body 59 moves while contacting the arc surface 62 a of the guide 62.

With the clockwise rotation of the first shut-off lever 52, the first lock member 200 moves upward again and pushes the lock plate 202 upward just before the completion of the closing operation to rotate around the rotation shaft 201. Rotate clockwise to release the lock of the release trigger 73 by the lock plate 202. FIG. 60 shows a state in which the closing operation has been completed. In this state, the trip trigger 7 by the lock plate 202
Since the lock of 3 is released, the next opening operation can be performed.

Further, with the clockwise rotation of the first shut-off lever 52, the second lock member 210 moves downward again and pushes the trigger lever 212 downward just before the completion of the closing operation to rotate around the connecting pin 211. The trigger lever 2 even if the plunger 17 is moved to the right.
Numeral 12 prevents the contact with the closing trigger 83. FIG. 60 shows a state in which the closing operation has been completed.

Next, when an open command is issued from the closed state shown in FIG. 60, the plunger 21 of the tripping electromagnet 20 is moved.
Pushes the tripping trigger 73 rightward, and the tripping trigger 73 rotates clockwise around the rotation axis 74. Trip trigger 7
By the rotation of 3, the lock of the guide 62 by the first tripping latch 69 is released, and the guide 62 is rotated around the rotation shaft 63 while being pressed by the rotating body 59 receiving the force from the open-circuit coil spring 60. Rotate clockwise.

The second shut-off lever 55 cannot be moved because it is pushed by a pin 87 provided on the closing lever 76 to which a clockwise rotating force is given by the closing coil spring 77. The first shut-off lever 52 receiving the force from 60 rotates counterclockwise around the rotation axis 51 due to the refraction of the link device 47, resulting in the state shown in FIG.

When the first shut-off lever 52 rotates counterclockwise, the second shut-off lever 52 connected to the first shut-off lever 52 rotates.
Is moved upward again by being guided by the support plate. The trigger lever 212 is pushed by the spring 213 and rotates clockwise around the connecting pin 211, so that the trigger lever 212 and the plunger 17 are linear. The second lock member 210 moves further upward and separates from the trigger lever 212. This state is shown in FIG.

The energy storing operation of the closing coil spring 77 is the same as that of the fifth embodiment shown in FIG. 26, but a slightly supplementary explanation will be given. The energy stored in the closing coil spring 77 is shown in FIG.
0 or the state where the closed coil spring 77 in FIG. 61 is released. First, a case where the closed coil spring 77 is charged from the state of FIG. 60 will be described. The lever 88 (FIG. 2) is rotated counterclockwise around the main shaft 51 by the energy storage device shown in FIG. Then, the closing lever 76 integrated with the lever 88 is also rotated counterclockwise around the main shaft 51.

The closing lever 76 moves while rotating in the counterclockwise direction while the pin 82 provided on the closing lever 76 abuts on the end face of the closing latch 79 and slides. Is rotated counterclockwise by the spring 81 to engage the pin 82. At the same time, the closing trigger 83 is rotated clockwise by the spring 85 and the pin 86
, The closing lever 76 is held, and the closed-circuit coil spring 77 is held in the charged state, and the state shown in FIG. 56 is reached.

In the state shown in FIG. 60, the guide 62 returns and is locked by the first release latch 69 and the second
Is locked to the second tripping latch 67. Therefore, even if the closing lever 76 is rotated counterclockwise, the second shut-off lever 55 and the first shut-off lever 5
2 does not move. Therefore, the first lock member 200 connected to the first shut-off lever 52 maintains the state shown in FIG. 60, and the lock plate 202 remains in the same state as that shown in FIG. It is in.

Also, the second lock member 210 connected to the first shut-off lever 52 maintains the state shown in FIG.
That is, the trigger lever 212 is
When the plunger 17 is moved downward, the trigger lever 212 does not come into contact with the closing trigger 83, so that the locking of the closing latch 79 is not released, and there is no possibility that the closing coil spring 77 is released. To maintain. This state is shown in FIG.

Also, from the state shown in FIG.
In the case of accumulating the energy, the spring 65 pushes the rotating body 59 via the guide 62 toward the main shaft 51 as the input lever 76 is rotated counterclockwise by the energy accumulating device, so that the second energy is accumulated. The blocking lever 55 rotates counterclockwise while abutting against a pin 87 provided on the closing lever 76.
The guide 62 is driven by the rotating body 59 by the force of the spring 65.
Is pressed and rotated clockwise to return, and is locked by the first release latch 69 and the release trigger 73.

The closing lever 76 moves while the pin 82 comes into contact with and slides on the end face of the closing latch 79 while being rotated counterclockwise.
Is rotated counterclockwise by the spring 81, and the closing lever 7 is rotated.
6 is engaged with a pin 82 provided on the same. Further, the closing trigger 83 is rotated clockwise by the spring 85 to rotate the pin 86
58, the closing lever 76 is held, and the closed-circuit coil spring 77 is held in the charged state, and the state shown in FIG. 58 is obtained.

As the closing trigger 83 rotates clockwise and engages with the pin 86, the closing trigger 83 becomes linear with respect to the plunger 17.
To return to a position where it can be driven. When the second shut-off lever 55 and the closing lever 76 rotate counterclockwise as described above, the open-circuit coil spring 60 is in the released state.
The first shut-off lever 52 and the first lock member 200 also do not move from the position in FIG. 61, and are in the same state as in FIG. Other operations are the same as those in the sixth embodiment shown in FIG.

According to the tenth embodiment, the first lock member 200 and the second lock member 210 connected to the first shut-off lever 52 are provided. , The tripping electromagnet 20 is excited and the plunger 21 is manually moved by mistake.
There is no danger that the lock of the guide 62 will be released due to the first disconnection lever 5
2 can be prevented from colliding with the pin 58 and generating a large impact.

When the circuit breaker shown in FIG. 58 is in the open state and the closing coil spring 77 has been charged and the open circuit coil spring 60 has been released, when the closing operation is started and the closing lever 76 starts to move, Even when the opening command is input and the tripping electromagnet 20 is excited or the plunger 21 is erroneously pressed, the locking of the guide 62 by the first tripping latch 69 can be prevented from being released. There is no possibility that the link device 47 loses its support and cannot be closed.

Further, the second lock member 210 is connected to the first shut-off lever 52, and the second lock member 210 is mechanically linked with the rotation of the first shut-off lever 52. The closing trigger 83 is driven by the trigger lever 212 and the closing latch 7 by the closing trigger 83 is driven.
9 can be prevented from being released.
Therefore, as shown in FIG. 56, when the circuit breaker is in the closed state and both the open coil spring 60 and the closed coil spring 77 are in the state of being charged, even if the plunger 17 of the closing electromagnet 16 is erroneously moved, The rotation of the closing lever 76 can be prevented.

Thus, the pin 87 does not collide with the second shut-off lever 55 and does not generate an impact. Also, even if the plunger 17 of the closing electromagnet 16 is moved by mistake, the rotation of the closing lever 76 can be prevented, and the occurrence of an impact can be prevented. Therefore, the closing lever 76, the pin 87, the second shut-off lever 55
The mechanical strength of components such as the above can be reduced, and the operating device can be further reduced in size and weight.

Embodiment 11 FIG. Embodiment 1 of the present invention
The device for operating a circuit breaker according to 1 is described with reference to the figures. 62 to 67 show an operating device of a circuit breaker according to Embodiment 11 of the present invention. FIG. 62 is a main part configuration diagram of the operating device of the circuit breaker. , And the torsion bar for opening are both charged. FIG. 63 is a main part configuration diagram of the circuit breaker operating device, and shows a state where the circuit opening operation is being performed from the state of FIG. 62. FIG. 64 is a main part configuration diagram of the circuit breaker operating device, showing a state in which the circuit breaker is in an open state, the closing torsion bar is charged, and the open circuit torsion bar is released.

FIG. 65 is a block diagram of a main part of the circuit breaker operating device, showing a state in which the circuit is being closed from the state of FIG. FIG. 66 is a main part configuration diagram of the circuit breaker operating device, showing a state where the closing operation is completed, the closing torsion bar is released, and the opening torsion bar is charged. FIG. 67 is a main part configuration diagram of the circuit breaker operating device. In the state where the second circuit opening operation is completed immediately after the high-speed reclosing operation, the circuit breaker is in the open state, and the closing torsion bar and the circuit opening circuit This shows a state in which both torsion bars are released.

The eleventh embodiment is different from the first embodiment in that the circuit breaker operating device using a torsion bar as the energy storage means shown in the first embodiment is provided with the first breaking lever 52 shown in the sixth embodiment.
Lock member 200 connected to
And a second lock member 210 connected to the first shut-off lever 52 shown in FIG. 1 to further reduce the size and weight of the circuit breaker operating device using a torsion bar as the energy storage means. Is what makes it possible.

Hereinafter, description will be made with reference to the drawings. 62 to 6
In 7, one end of a torsion bar for closing is fixed inside the input shaft 109. The torsion bar is not shown in FIGS. 62 to 67 (see the torsion bar 35 in FIG. 4). The lever 110 fixed to the input shaft 109 receives a biasing force for rotating clockwise from the torsion bar. The closing lever 76 is connected to the main shaft 51.
The link 111 and the pin 11
2, the lever 110 receives a force to rotate clockwise from the torsion bar.

Since the other structure is the same as that of the tenth embodiment shown in FIG. 56, the corresponding components are denoted by the same reference numerals and description thereof is omitted. 62 to 67, the housing 1 and the stopper 1 shown in FIG.
04 is omitted. Also, the operation is the same as that of the tenth embodiment, and the description is omitted.

Embodiment 12 FIG. Embodiment 1 of the present invention
2 will be described with reference to the drawings. FIG.
FIG. 26 is a main part configuration diagram of an operating device in a closed state of a circuit breaker according to Embodiment 12 of the present invention, showing a state in which the circuit breaker is closed and a closed coil spring 77 and an open circuit coil spring 60 are energized. This embodiment is a modification of the configuration of the guide 62 in the third embodiment.

Reference numeral 95 denotes a guide rotatably mounted on the rotation shaft 63. Reference numeral 65 denotes a spring, which urges the guide 95 to rotate clockwise around the rotation shaft 63. The guide 95 has a flat surface 95a and a pin 95b fixed to the main body of the guide 95. The pin 95b corresponds to the pin 62 in FIG.
Similar to b, the pin 95b engages the second trip latch 67. Other configurations are the same as those of the third embodiment, and the corresponding components are denoted by the same reference numerals and description thereof is omitted.

The opening operation, closing operation, and accumulating operation of the closing coil spring are the same as those described in the third embodiment. However, the closing operation will be slightly supplemented below. As in the third embodiment, the closing latch 79 releases the locking of the closing lever 76, the closing lever 76 starts to rotate clockwise around the main shaft 51, and the second shut-off lever 55 moves to the closing lever 76. And is rotated clockwise by being pushed by the pin 87. Since the guide 95 is locked by the first release latch 69, the rotating body 59
And is guided while rotating.

The second link 54, the rotating body 59, the first link 53, and the first shut-off lever 52 are integrated with the clockwise rotation of the second shut-off lever 55 to form a main shaft. Rotating clockwise around 51, the movable contact 2
2 is driven in the closing direction, and at the same time, the open-circuit coil spring 60 is charged. When the second shut-off lever 55 rotates clockwise by a predetermined angle, the second tripping latch 67 engages with the pin 64 provided on the second shut-off lever 55 to close the circuit and store the open-circuit coil spring 60. The power operation is completed. FIG. 68 shows a state in which the closed coil spring 77 is further charged from this state.
It is.

Since the surface on which the rotating body 59 is guided while rolling is the flat surface 95a, the closer to the end of the closing operation, that is, the more the second shut-off lever 55 rotates clockwise, the more the rotating body 59 and the main shaft 51 are rotated. The distance increases, and the rotation angle of the first shut-off lever 52 with respect to the rotation angle of the second shut-off lever 55 becomes relatively small, so that the torque of the first shut-off lever 52 is smaller than the torque of the second shut-off lever 55. growing. That is, it is possible to increase the torque of the first breaking lever 52 when the closing operation is approaching.

In general, the force generated by the spring decreases as the force is released. In this way, the characteristics of the closed coil spring 77 in which the force is weakened at the end of the force release can be compensated for.
Further, by controlling the angle of the flat surface 95a, the torque of the first shut-off lever 52 at the start of the closing operation or at the end of the closing operation can be increased or decreased relative to the torque of the closing lever 76. Further, by providing a guide surface having an arbitrary rolling surface instead of the flat surface 95a of the guide 95, the torque of the first shut-off lever 52 can be controlled more freely.

[0294] Such a guide 95 is not limited to the third embodiment, but can be applied to other embodiments to achieve the same effect.

Embodiment 13 FIG. Embodiment 1 of the present invention
3 will be described with reference to the drawings. FIG. 69 is a main part configuration diagram of an energy storage device of a closed coil spring 77 according to Embodiment 13 of the present invention. In FIG. 69, reference numeral 96 denotes a rotating shaft rotatably supporting a second rotating body 89 attached to a lever 88, and reference numeral 97 denotes a closing latch rotatably mounted on a cam shaft 90, which is a closing latch according to the third embodiment. 79, and is engaged with the rotating shaft 96, so that the lever 88
(FIG. 69) and the closing lever 76 (see FIG. 1) integrally fixed to the lever 88 is locked and held.

Reference numeral 98 denotes a spring for urging the closing latch 97 in a counterclockwise direction.
, A pin 86 is provided, and the trigger 83 is engaged with the pin 86. For other configurations, refer to the first embodiment.
Therefore, the corresponding components are denoted by the same reference numerals and description thereof is omitted.

As described above, since the closing latch 97 and the cam 91 are attached to the cam shaft 90 which is the same rotating shaft, the rotating shaft 80 in the first embodiment can be omitted, and the apparatus can be downsized. Such an energy storage device is described in the first embodiment.
However, the present invention is not limited to this and can be applied to other embodiments to achieve the same effect.

The energy storage means is not limited to the above-mentioned torsion bar or coil spring, but may be connected to another elastic member such as an air spring or rubber, or a tank storing compressed air. It may be a combination of the air cylinders provided. Further, the same effect can be obtained even if the switch is a disconnecting switch, a load switch, or the like.

[0299]

Since the present invention is constructed as described above, it has the following effects.

A first shut-off lever rotatably supported by the support structure and connected to the open / close contact, an open-circuit energy storing means for urging the first shut-off lever to rotate in a predetermined direction, A link device having first and second links and a connecting portion for connecting the first and second links so as to be able to bend and extend, the first link being rotatably supported on a support structure, the link device being connected to a first shut-off lever. And a closing lever connected to the second link, a closing lever rotatably supported by the support structure and detachably connected to the second closing lever, and a closing lever moved in a direction opposite to a predetermined direction. Closing energy accumulating means for urging to rotate, closing latch for locking the closing lever,
A guide having a guide surface for guiding the connecting portion while contacting the connecting portion, the guide being movably supported by the support structure, a first release latch for locking the guide, and a second shut-off lever interlocking with the guide. When the guide is released by the first release latch, the guide is pushed by the connecting portion and moves, and the second release latch is operated by the second release latch. The first blocking lever is rotated in a predetermined direction by the release of the biasing means for opening and the opening / closing contact is opened, and the first blocking lever is rotated by a predetermined angle in a predetermined direction. When rotated, the guide is again locked by the first release latch, and when the locking of the closing lever by the closing latch is released, the second shut-off lever is moved in the predetermined direction via the closing lever by the release of the closing energy storage means. Drives in the opposite direction to The first disconnecting lever is rotated in a direction opposite to a predetermined direction to close the open / close contact while the connecting portion is guided by the guide surface of the guide locked by the first release latch via the link device, and the open / close contact is closed. At the same time, the energy storage means for opening is charged and the second shut-off lever is locked by the second trip latch to maintain the charged state of the energy storage means for opening and the closed state of the switching contact. When the first shut-off lever is rotated by a predetermined angle in a predetermined direction when the on-off contact is opened, the guide is moved to the first position.
Is locked to the first release latch before the next closing operation, that is, the first release latch locks the guide when the closing is completed. Opening operation can be started immediately without waiting for

[0301] An open-circuit operation preventing member is provided which interlocks with the rotation of the closing lever or the first shut-off lever to prevent the first trip latch from operating during the closing operation of the on-off contact. Erroneously during the closing
By preventing the release latch from operating and unlocking the guide by the open-circuit operation preventing member, the lock of the guide is released during the closing operation, the support of the connecting portion is lost, and the storage for the open circuit is stopped. A first breaking lever driven to rotate in a predetermined direction by a biasing means and a second breaking lever driven to rotate in a direction opposite to the predetermined direction by a closing lever during closing operation collide to generate a large impact. Therefore, the mechanical strength of the closing lever, the first breaking lever, and the second breaking lever can be reduced, and the device can be downsized.

Further, a tripping trigger is rotatably provided on the support structure member, and by rotating the tripping trigger, the locking of the guide by the first tripping latch is released. It is characterized in that it moves in conjunction with the rotation of the closing lever or the first shut-off lever and prevents the tripping trigger from rotating during the closing operation of the open / close contact. The device can be miniaturized by preventing the first trip latch from rotating and unlocking the guide by the first trip latch.

[0303] Further, a closing operation preventing member for preventing the closing latch from operating in the closed state of the on-off contact in conjunction with the rotation of the first shut-off lever is provided. The closing latch can be prevented from operating by mechanically interlocking the closing operation preventing member with the rotation of the lever. Therefore, when both the energy storage means for opening and the energy storage means for closing are in the charged state, the locking of the closing lever by the closing latch is released, and the closing lever and the second shut-off lever collide. Since there is no possibility that a large impact is generated, the mechanical strength of the closing lever, the second shut-off lever, and the like can be reduced, and the size can be reduced.

Then, the closing trigger is rotatably provided on the supporting structure member, and the closing of the closing lever by the closing latch is released by rotating the closing trigger. It is characterized by moving in conjunction with the rotation of the lever and preventing the closing trigger from rotating in the closed state of the open / close contact, so that with a simple configuration, the closing trigger rotates in the closed state of the open / close contact. The locking of the closing lever by the closing latch can be prevented from being released, and the size can be reduced by reducing the mechanical strength of the closing lever and the second shut-off lever.

Further, an opening prevention member is provided to prevent the first release latch from operating during the closing operation of the on / off contact in conjunction with the rotation of the closing lever or the first interruption lever. A closing operation preventing member is provided to prevent the closing latch from operating in the closed state of the on-off contact in conjunction with the rotation, so that the first tripping latch operates by mistake during the closing. By preventing the lock of the guide from being released by the open-circuit operation preventing member, the lock of the guide is released during the closing operation and the support of the connecting portion is lost, and the guide is rotationally driven in a predetermined direction by the accumulating means for opening. When the first breaking lever is rotated by the closing lever in the direction opposite to the predetermined direction during the closing operation, the first breaking lever and the second breaking lever collide with each other to generate a large impact. Les can be eliminated. Also,
By mechanically interlocking the closing / opening operation preventing member with the rotation of the first shut-off lever, the closing latch can be prevented from operating. Therefore, when both the energy storage means for the open circuit and the energy storage means for the closed circuit are in an energized state,
Since the locking of the closing lever by the closing latch is released and the closing lever and the second shut-off lever do not collide with each other and generate a large impact, there is no possibility that the first shut-off lever, the second shut-off lever, or the closing lever is closed. Mechanical strength can be reduced,
It can be more compact.

Further, the trip trigger and the closing trigger are rotatably provided on the support structure member, and the locking of the guide by the first trip latch is released by rotating the trip trigger, and the closing trigger is rotated. To release the locking of the closing lever by the closing latch.
The opening operation preventing member moves in conjunction with the rotation of the closing lever or the first interrupting lever to prevent the trip trigger from rotating during the closing operation of the on-off contact, and the closing operation preventing member includes the first interrupting lever. It is characterized in that it moves in conjunction with the rotation of the switch so that the closing trigger does not rotate in the closed state of the open / close contact. Therefore, with a simple configuration, the first release latch rotates during the closing operation. The locking of the guide by the first release latch is not released, and the locking of the closing lever by the closing latch is prevented from being released by the rotation of the closing trigger due to the closed state of the open / close contact. By preventing the occurrence of an impact and reducing the mechanical strength of the first shut-off lever, the second shut-off lever, and the closing lever, the size can be further reduced.

[0307] Also, when the locking of the guide by the first trip latch is released while the closing energy storage means is being released or when the closing energy storage means is in the released state, the closing energy storage means is released. It is provided with a stopper for receiving the releasing force of the accumulating means.Since the stopper is provided, the circuit can be opened immediately after the completion of the closing even if the blocking member is provided. By receiving the remaining force of the closing energy storage means with the stopper, it is possible to prevent the occurrence of an excessive impact due to the collision.

The energy storage means for opening and closing the circuit
Since it is a torsion bar, it is possible to realize energy storage means that is energy efficient and has no stress concentration.

Further, the energy storage means for opening and closing the circuit is
Since it is a coil spring, a compact energy storing means can be realized.

[0310] The first and second shut-off levers are rotatably supported on the same support shaft provided on the support structure. Need not be individually supported, the number of parts is reduced, and the structure is simplified.

[0311] The second shut-off lever and the closing lever are rotatably supported by the same support shaft provided on the support structure. Since it is not necessary to individually support the closing lever, the number of parts is reduced, the structure is simplified, and the apparatus can be downsized.

[0312] Further, since the first shut-off lever, the second shut-off lever, and the closing lever are rotatably supported by the same support shaft provided on the support structure, Since it is not necessary to individually support the first shut-off lever, the second shut-off lever, and the closing lever, the number of parts is further reduced, the structure is simplified, and the apparatus can be downsized.

Also, the guide and the second trip latch are
Since it is rotatably supported on the same support shaft provided on the support structure, it is not necessary to individually support the second trip latch and the closing lever.
The number of parts is reduced, the structure is simplified, and the device can be downsized.

The first shut-off lever and the second shut-off lever are rotatably supported on the same support shaft provided on the support structure, and the guide surface of the guide is an arc surface, and The center of the arc of the arc surface is located at the center of the support shaft when the first and second latches are locked by the first release latch. The trajectory can be controlled.

Further, the first and second shut-off levers are rotatably supported by the same support shaft provided on the support structure, and the guide surface of the guide is a flat surface. Because of this feature, machining of the guide surface is easy, and the torque of the closing energy storage means transmitted to the first shut-off lever at the start or end of the closing operation can be increased.

[0316] Further, the link device is characterized in that a rotating body which is guided while rotating while being in contact with the guide surface of the guide is provided in the connecting portion. Therefore, when the connecting portion is guided by the guide. When the opening / closing contact is closed to store the energy for the open circuit, the energy stored in the closing circuit can be effectively transmitted to the first shut-off lever.

[0317] The closing energy accumulating means is energized by an energy accumulating device that drives the closing lever by a cam driven by a motor. Therefore, the shape of the cam is controlled. As a result, the load torque of the motor at the time of charging of the closing charging device can be controlled, and the maximum torque applied to the components of the charging device can be reduced.

Further, the energy storage device is provided with a braking member that slides on the cam while being elastically deformed and brakes the cam, so that the rotating cam is braked by inertia. And can be stopped quickly.

Further, a closing latch is provided rotatably on the same shaft as the cam, and the closing lever is locked by the closing latch, thereby holding the closing energy storing means in the charged state, and the closing latch is engaged with the closing lever by the closing latch. Since the closing energy is released by releasing the stop, a separate shaft for supporting the closing latch does not need to be provided, and the number of parts is reduced.

[0320] Since the switch is a circuit breaker, a suitable operating device can be obtained for the circuit breaker.

[Brief description of the drawings]

FIG. 1 is a main part configuration diagram of a circuit breaker operating device according to Embodiment 1 of the present invention, showing a state in which a circuit breaker is in a closed state and both closing and opening torsion bars are energized.

FIG. 2 is a main part configuration diagram of a power storage device for storing a torsion bar for closing according to the first embodiment of the present invention.

FIG. 3 is a side view showing the vicinity of a torsion bar for opening and a first shut-off lever according to the first embodiment of the present invention as viewed from the left side in FIG. 1;

FIG. 4 is a side view showing the vicinity of the closing torsion bar and the closing lever according to the first embodiment of the present invention as viewed from the left side of FIG. 1;

5 is a main part configuration diagram of the circuit breaker operating device according to Embodiment 1 of the present invention, showing a state where the circuit breaker is being opened from the state of FIG. 1;

6 is a main part configuration diagram of the circuit breaker operating device according to Embodiment 1 of the present invention, in which the opening operation has been completed from the state of FIG. 1, and the closing torsion bar has been charged; Shows a state in which the torsion bar is released.

FIG. 7 is a main part configuration diagram of the circuit breaker operating device according to Embodiment 1 of the present invention, in which the circuit breaker is in a closed state, the closing torsion bar is released, and the open circuit torsion bar is charged. It shows the state where it was done.

FIG. 8 is a diagram illustrating a state in which the second opening operation is completed immediately after the high-speed reclosing operation according to the first embodiment of the present invention, the circuit breaker is in an open state, and both the closing and opening torsion bars are released. Indicates the status.

FIG. 9 is a sectional view taken along section line CC in FIG. 8;

FIG. 10 is a main part configuration diagram of a circuit breaker operating device according to Embodiment 2 of the present invention, showing a state in which the circuit breaker is in a closed state and both a closed coil spring and an open circuit coil spring are energized.

11 is a main part configuration diagram of a circuit breaker operating device according to Embodiment 2 of the present invention, showing a state in which a circuit opening operation is being performed from the state of FIG. 10;

12 is a main part configuration diagram of a circuit breaker operating device according to Embodiment 2 of the present invention, in which the opening operation is completed from the state of FIG. 11, the closing coil spring is charged, and the opening coil spring is released. Shows the energized state.

FIG. 13 is a main part configuration diagram of a circuit breaker operating device according to Embodiment 2 of the present invention, showing a state in which the circuit breaker is in a closed state, a closed coil spring is energized, and an open circuit coil spring is energized. .

FIG. 14 is a main part configuration diagram of a circuit breaker operating device according to Embodiment 2 of the present invention, showing a state in which the circuit breaker is in an open state and a state in which a closed coil spring and an open circuit coil spring are released.

FIG. 15 is a main part configuration diagram of a circuit breaker operating device according to Embodiment 3 of the present invention, showing a state where the circuit breaker is in a closed state and both the closing and open circuit coil springs are charged.

FIG. 16 is a main part configuration diagram of a circuit breaker operating device according to Embodiment 3 of the present invention, showing a state in which a circuit opening operation is being performed from the state of FIG. 15;

17 is a main part configuration diagram of the circuit breaker operating device according to Embodiment 3 of the present invention, in which the opening operation is completed from the state of FIG. 16, the closing coil spring is charged, and the opening coil spring is released. Shows the energized state.

FIG. 18 is a main part configuration diagram of a circuit breaker operating device according to Embodiment 3 of the present invention, showing a state in which the circuit breaker is in a closed state, the closed circuit coil spring is energized, and the open circuit coil spring is energized. .

FIG. 19 is a main part configuration diagram of an operation device for a circuit breaker according to Embodiment 3 of the present invention.
This shows a state in which the circuit breaker is in an open state and both the closing and open circuit coil springs have been de-energized in a state in which the first opening operation has been completed.

FIG. 20 is a main part configuration diagram of a circuit breaker operating device according to Embodiment 4 of the present invention, showing a state where the circuit breaker is in a closed state and both the closing and opening torsion bars are charged.

FIG. 21 is an explanatory diagram illustrating a configuration around a lock member of the circuit breaker operating device according to the fourth embodiment of the present invention.

FIG. 22 is a main part configuration diagram of the circuit breaker operating device according to Embodiment 4 of the present invention, in which the opening operation is completed, the torsion bar for closing is charged, and the torsion bar for opening is discharged. Indicates the status.

FIG. 23 is a main part configuration diagram of a circuit breaker operating device according to Embodiment 4 of the present invention, and is a main part configuration diagram of the circuit breaker operating device, showing a state in the middle of performing a closing operation.

FIG. 24 is a main part configuration diagram of a circuit breaker operating device according to Embodiment 4 of the present invention, wherein the circuit breaker is in a closed state, a closing torsion bar is urged, and an open circuit torsion bar is charged. It shows the state where it was done.

FIG. 25 is a main part configuration diagram of an operation device for a circuit breaker according to Embodiment 4 of the present invention. And a state in which both the torsion bar for opening and the opening are released.

FIG. 26 is a main part configuration diagram of a circuit breaker operating device according to Embodiment 5 of the present invention, showing a state where the circuit breaker is in a closed state and both the closing and open coil springs are energized.

FIG. 27 is a main part configuration diagram of a circuit breaker operating device according to Embodiment 5 of the present invention, showing a state in which the circuit breaker is in an open state, a closed circuit coil spring is charged, and an open circuit coil spring is released. .

FIG. 28 is a main part configuration diagram of a circuit breaker operating device according to Embodiment 5 of the present invention, showing a state in the course of performing a closing operation.

FIG. 29 is a main part configuration diagram of a circuit breaker operating device according to Embodiment 5 of the present invention, showing a state where a closing operation is completed, a closing coil spring is released, and an open circuit spring is charged.

FIG. 30 is a main part configuration diagram of a circuit breaker operating device according to Embodiment 5 of the present invention. And a state where both the open coil spring and the open circuit coil spring are released.

FIG. 31 is a main part configuration diagram of a circuit breaker operating device according to Embodiment 6 of the present invention, showing a state where the circuit breaker is in a closed state and both the closed coil spring and the open circuit coil spring are energized.

FIG. 32 is a main part configuration diagram of a circuit breaker operating device according to Embodiment 6 of the present invention, showing a state where the circuit opening operation is being performed from the state of FIG. 31;

FIG. 33 is a main part configuration diagram of a circuit breaker operating device according to Embodiment 6 of the present invention, showing a state in which a circuit breaker is in an open state, a closed coil spring is energized, and an open circuit coil spring is released. .

FIG. 34 is a main part configuration diagram of a circuit breaker operating device according to Embodiment 6 of the present invention, showing a state where a closing operation is being performed from the state of FIG. 33;

FIG. 35 is a main part configuration diagram of a circuit breaker operating device according to Embodiment 6 of the present invention, showing a state where a closing operation is completed, a closing coil spring is released, and an open circuit spring is charged.

FIG. 36 is a main part configuration diagram of a circuit breaker operating device according to Embodiment 6 of the present invention.
This shows a state in which the circuit breaker is in an open state, and both the closing coil spring and the open circuit coil spring have been de-energized in a state in which the first opening operation has been completed.

FIG. 37 is a main part configuration diagram of a circuit breaker operating device according to Embodiment 7 of the present invention, showing a state where the circuit breaker is closed and both the closed coil spring and the open coil spring are energized.

FIG. 38 is a main part configuration diagram of a circuit breaker operating device according to Embodiment 7 of the present invention, showing a state where the circuit opening operation is being performed from the state of FIG. 37;

FIG. 39 is a main part configuration diagram of a circuit breaker operating device according to Embodiment 7 of the present invention, showing a state in which the circuit breaker is in an open state, a closed circuit coil spring is charged, and an open circuit coil spring is released. .

40 is a main part configuration diagram of the circuit breaker operating device according to Embodiment 7 of the present invention, showing a state where the circuit closing operation is being performed from the state of FIG. 39.

FIG. 41 is a main part configuration diagram of a circuit breaker operating device according to Embodiment 7 of the present invention, showing a state in which a closing operation has been completed, a closing coil spring has been discharged, and an open circuit coil spring has been charged.

FIG. 42 is a main part configuration diagram of a circuit breaker operating device according to Embodiment 7 of the present invention.
This shows a state in which the circuit breaker is in an open state, and both the closing coil spring and the open circuit coil spring have been de-energized in a state in which the first opening operation has been completed.

FIG. 43 is a main part configuration diagram of a circuit breaker operating device according to Embodiment 8 of the present invention, showing a state where the circuit breaker is in a closed state and both the closed torsion bar and the open torsion bar are charged; Show.

FIG. 44 is a main part configuration diagram of a circuit breaker operating device according to an eighth embodiment of the present invention, showing a state where the circuit breaker is being opened from the state of FIG. 43;

FIG. 45 is a main part configuration diagram of a circuit breaker operating device according to an eighth embodiment of the present invention. When the circuit breaker is in an open state, a torsion bar for closing accumulates, and a torsion bar for opening opens. It shows the state where it was done.

46 is a main part configuration diagram of a circuit breaker operating device according to Embodiment 8 of the present invention, showing a state where the circuit closing operation is being performed from the state of FIG. 45.

FIG. 47 is a main part configuration diagram of a circuit breaker operating device according to Embodiment 8 of the present invention, in which the closing operation is completed, the closing torsion bar is released, and the opening torsion bar is charged. Indicates the status.

FIG. 48 is a main part configuration diagram of a circuit breaker operating device according to an eighth embodiment of the present invention.
This shows a state where the circuit breaker is in the open state and the closing torsion bar and the opening torsion bar are both released in a state where the first opening operation is completed.

FIG. 49 is a main configuration diagram of a circuit breaker operating device according to Embodiment 9 of the present invention, showing a state where the circuit breaker is in a closed state and both the closed coil spring and the open circuit coil spring are energized.

50 is a main part configuration diagram of a circuit breaker operating device according to a ninth embodiment of the present invention, showing a state in which the circuit opening operation is being performed from the state of FIG. 49.

FIG. 51 is a main part configuration diagram of a circuit breaker operating device according to Embodiment 9 of the present invention, showing a state in which the circuit breaker is in an open state, a closed coil spring has been charged, and an open circuit coil spring has been released. .

52 is a main part configuration diagram of a circuit breaker operating device according to Embodiment 9 of the present invention, showing a state in which the circuit closing operation is being performed from the state of FIG. 51.

FIG. 53 is a main part configuration diagram of a circuit breaker operating device according to Embodiment 9 of the present invention, showing a state where a closing operation has been completed, a closing coil spring has been released, and an open circuit coil spring has been charged.

FIG. 54 is a main part configuration diagram of a circuit breaker operating device according to Embodiment 9 of the present invention.
This shows a state in which the circuit breaker is in an open state, and both the closing coil spring and the open circuit coil spring have been de-energized in a state in which the first opening operation has been completed.

FIG. 55 is a partially enlarged view showing a detailed configuration of a second lock member of FIG. 49.

FIG. 56 is a main part configuration diagram of a circuit breaker operating device according to Embodiment 10 of the present invention, showing a state where the circuit breaker is in a closed state and both the closed coil spring and the open circuit coil spring are energized.

FIG. 57 is a main part configuration diagram of a circuit breaker operating device according to Embodiment 10 of the present invention, showing a state where a circuit opening operation is being performed from the state of FIG. 56;

FIG. 58 is a main part configuration diagram of a circuit breaker operating device according to Embodiment 10 of the present invention, showing a state where the circuit breaker is in an open state, a closed coil spring is charged, and an open circuit coil spring is released. .

59 is a main part configuration diagram of a circuit breaker operating device according to Embodiment 10 of the present invention, showing a state where the circuit closing operation is being performed from the state of FIG. 58.

FIG. 60 is a main part configuration diagram of a circuit breaker operating device according to Embodiment 10 of the present invention, showing a state in which the closing operation has been completed, the closing coil spring has been released, and the open circuit spring has been charged.

FIG. 61 is a main part configuration diagram of a circuit breaker operating device according to Embodiment 10 of the present invention, in a state where the second circuit opening operation is completed immediately after the high-speed reclosing operation, the circuit breaker is in the open circuit state, The state where both the closing coil spring and the opening coil spring are released is shown.

FIG. 62 is a main part configuration diagram of a circuit breaker operating device according to Embodiment 11 of the present invention, showing a state where the circuit breaker is in a closed state and both the torsion bar for closing and the torsion bar for opening are charged; Show.

FIG. 63 is a main part configuration diagram of a circuit breaker operating device according to Embodiment 11 of the present invention, showing a state where the circuit opening operation is being performed from the state of FIG. 62;

FIG. 64 is a main part configuration diagram of an operation device for a circuit breaker according to Embodiment 11 of the present invention, wherein when the circuit breaker is in an open state, a torsion bar for closing accumulates, and a torsion bar for open circuit discharges. It shows the state where it was done.

FIG. 65 is a main part configuration diagram of a circuit breaker operating device according to Embodiment 11 of the present invention, showing a state where the circuit closing operation is being performed from the state of FIG. 64;

FIG. 66 is a main part configuration diagram of a circuit breaker operating device according to Embodiment 11 of the present invention, in which the closing operation is completed, the closing torsion bar is released, and the opening torsion bar is charged. Indicates the status.

FIG. 67 is a main part configuration diagram of an operation device for a circuit breaker according to Embodiment 11 of the present invention, in a state where a second opening operation is completed immediately after a high-speed reclosing operation, This shows a state where both the closing torsion bar and the opening torsion bar are released.

FIG. 68 is a main part configuration diagram of a circuit breaker operating device according to Embodiment 12 of the present invention, showing a state where the circuit breaker is in a closed state and the closed circuit coil spring and the open circuit coil spring are charged;

FIG. 69 is a main part configuration diagram of an energy storage device of a circuit breaker operating device according to Embodiment 13 of the present invention;

FIG. 70 is a perspective view showing the structure of a conventional circuit breaker operating device.

FIG. 71 is a main part configuration diagram of a conventional circuit breaker operating device, showing a state in which the circuit breaker is in a closed state and both the breaking and closing torsion bars are energized.

FIG. 72 is a main part configuration diagram of a conventional circuit breaker operating device, showing a state in which the circuit breaker is in an open circuit state, an open circuit torsion bar is released, and a closed circuit torsion bar is charged.

FIG. 73 is a main part configuration diagram of a conventional circuit breaker operating device, showing a state where the circuit breaker is in a closed state, an open circuit torsion bar is charged, and a closed circuit torsion bar is released.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 Opening / closing contact, 12 Fixed contact, 22 Movable contact, 28, 34 Torsion bar for opening, 29, 35
Closing torsion bar, 47 link device, 47a
Connection part, 51 main shaft, 52 first shut-off lever, 53
1st link, 54 2nd link, 55 2nd shut-off lever, 59 rotating body, 60 open circuit coil spring, 62
Guide, 62a arc surface, 62b pin, 63 rotation axis, 67 second trip latch, 69 first trip latch, 1 trip trigger, 76 closing lever, 77 closing coil spring, 2 closing latch, 87 pin, 89 second rotating body, 90 cam shaft, 91 cam, 94 elastic body, 95 guide, 95a plane, 97 closing latch,
103 lock member, 104 stopper, 109 closing shaft, 110 lever, 111 closing link, 112 pin, 200 first locking member, 201 rotating shaft, 20
2 lock plate, 203 spring, 210 second lock member, 211 connecting pin, 212 trigger lever,
213 spring, 310 second locking member, 310a
Insertion pin, 317 plunger, 317a hole.

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Tomohito Mori 2-3-2 Marunouchi, Chiyoda-ku, Tokyo F-term (reference) 5M028 AA01 in Mitsubishi Electric Corporation

Claims (21)

[Claims] A first interrupting lever rotatably supported by a support structure and connected to an on-off contact; and an open-circuit energy for urging the first interrupting lever to rotate in a predetermined direction. Means, a link device having first and second links and a connecting portion for connecting the first and second links to be able to bend and extend, wherein the first link is connected to the first shut-off lever; A second shut-off lever rotatably supported by the structure and connected to the second link, a closing lever rotatably supported by the support structure and detachably connected to the second shut-off lever; A closing accumulator for urging the closing lever to rotate in a direction opposite to the predetermined direction; a closing latch for locking the closing lever; a guide for guiding the connecting portion while contacting the connecting portion. The support structure having a surface A guide movably supported by the body, a first release latch that locks the guide, and a second release latch that works with the guide and locks the second shut-off lever. When the lock of the guide by the first trip latch is released, the guide is pushed by the connecting portion and moves, and the second trip latch by the second trip latch interlocked with the guide is moved.
Is unlocked, and the release of the open-circuit accumulating means drives the first shut-off lever to rotate in a predetermined direction to open the on-off contact, and causes the first shut-off lever to move to the predetermined position. When the guide is rotated by a predetermined angle in the direction, the guide is again locked by the first release latch, and when the locking of the closing lever by the closing latch is released, the closing lever is released by the release of the closing energy storage means. The second shut-off lever is rotationally driven in a direction opposite to the predetermined direction via the link device, and the connecting portion is guided by the guide surface of the guide locked by the first release latch. While rotating the first shut-off lever in a direction opposite to the predetermined direction, the open / close contact is closed and the accumulating means for opening is also charged, and the second shut-off lever is moved upward. An operating device for a switch, wherein the operating state of the switch is maintained by being locked by a second trip latch to maintain the charged state of the open-circuit charging means and the closed state of the switching contact. 2. An open-circuit operation preventing member for interlocking with the rotation of a closing lever or a first shut-off lever and preventing the first trip latch from operating during the closing operation of the on-off contact is provided. The switch operating device according to claim 1, wherein: 3. A trip trigger is rotatably provided on a support structure member, and the first trigger is rotated by rotating the trip trigger.
The unlocking of the guide by the trip latch is released, and the opening operation preventing member moves in conjunction with the rotation of the closing lever or the first shut-off lever, and the trip trigger does not rotate during the closing operation of the open / close contact. The switch operating device according to claim 2, wherein the switch is operated in the following manner. 4. The circuit according to claim 1, further comprising a closing operation preventing member for interlocking with the rotation of the first shut-off lever and preventing the closing latch from operating in a closed state of the on-off contact. Switchgear operating device. 5. A closing trigger is provided on a supporting structure member so as to be rotatable, and by rotating the closing trigger, the locking of a closing lever by a closing latch is released. 5. The closing trigger is moved in conjunction with the rotation of the switch to prevent the closing trigger from rotating when the switching contact is in a closed state.
2. The operating device for a switch according to claim 1. 6. An open-circuit operation preventing member for interlocking with the rotation of a closing lever or a first cut-off lever to prevent the first trip latch from operating during the closing operation of the on-off contact. The switch operating device according to claim 1, further comprising a closing operation preventing member that interlocks with the rotation to prevent the closing latch from operating in a closed state of the on / off contact. 7. A tripping trigger and a closing trigger are rotatably provided on a supporting structure member, and by rotating the tripping trigger, the guide is unlocked by the first tripping latch and the closing trigger is rotated. The opening latch prevents the closing of the closing lever by the closing latch, and the opening operation preventing member moves in conjunction with the rotation of the closing lever or the first shut-off lever, and the trip trigger is activated during the closing operation of the open / close contact. The closing operation preventing member moves in conjunction with the rotation of the first shut-off lever, and prevents the closing trigger from rotating in a closed state of the open / close contact. The switch operating device according to claim 6. 8. When the guide is released by the first release latch while the closing energy storing means is being released or when the closing energy storing means is in the released state, the closing energy storing means is released. A stopper is provided to receive the releasing force of the energy storage means.
The switch operating device according to any one of claims 2 to 7, characterized in that: 9. The switch operating device according to claim 1, wherein the energy storage means for opening and closing are torsion bars. 10. The operating device for a switch according to claim 1, wherein the energy storing means for opening and closing is a coil spring. 11. The device according to claim 1, wherein the first shut-off lever and the second shut-off lever are rotatably supported by the same support shaft provided on the support structure. Switchgear operating device. 12. The second shut-off lever and the closing lever,
The switch operating device according to claim 1, wherein the switch operating device is rotatably supported by the same support shaft provided on the support structure. 13. The apparatus according to claim 1, wherein the first shut-off lever, the second shut-off lever, and the closing lever are rotatably supported on the same support shaft provided on the support structure. 2. The operating device for a switch according to claim 1. 14. The switch according to claim 1, wherein the guide and the second trip latch are rotatably supported by the same support shaft provided on the support structure. Operating device. 15. The first shut-off lever and the second shut-off lever are rotatably supported on the same support shaft provided on a support structure, and the guide surface of the guide is an arc surface, and 2. The switch according to claim 1, wherein the center of the arc of the arc surface is located at the center of the support shaft when the switch is locked by the first trip latch. Operating device. 16. The first shut-off lever and the second shut-off lever are rotatably supported on the same support shaft provided on a support structure, and the guide surface of the guide is flat. The switch operating device according to claim 1, characterized in that: 17. The link device according to claim 15, wherein a rotating body provided on the connecting portion is guided while rotating while coming into contact with the guide surface of the guide.
2. The operating device for a switch according to claim 1. 18. The energy storage means for a closed circuit is charged by a power storage device that drives a closing lever by a cam driven by a motor.
3. The operating device for a switch according to claim 1. 19. The energy storage device includes a braking member that slides on the cam while elastically deforming to brake the cam.
The switch operating device according to claim 18, characterized in that: 20. A closing latch is provided on the same shaft as the cam so as to be rotatable, and the closing lever is locked by the closing latch to hold the closing power storing means in a stored state, and the closing lever is operated by the closing latch. The switch operating device according to claim 18, characterized in that the closing energy is released by releasing the locking. 21. The operating device for a switch according to claim 1, wherein the switch is a circuit breaker.