JPH0528882A - Operational device for switch apparatus - Google Patents

Abstract

PURPOSE:To provide an operational device for switch apparatus, with which energy accumulatedcondition can be electrically sensed precisely. CONSTITUTION:One end of a torsion bar for turning on 6 as the medium for energy accumulation is fixed to a main shaft for turning on 3, round which a lever for turning on 4 rotates. This On lever 4 is coupled through a link 5 with a major gear 7, with which a cam 12 is coupled through a cam shaft 13. A energy of the On torsion bar 6 when detained with an On latch 14 while releases the energy when disengaged. Leads 30, 31 are connected with the cam shaft 13 and On latch 14 so as to sense electrically the detension and disengagement of the pin B24 with/from the On latch 14.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a switchgear operating device, and more particularly to a detection structure for detecting completion of spring energy storage.

[0002]

2. Description of the Related Art FIGS.
FIG. 14 is a plan view showing an open circuit state, a closed circuit state and a closing spring released state of the conventional circuit breaker spring operating device described in Japanese Patent Publication No. 29740. In the figure, reference numeral 1 is a rotation main shaft of a lever 11, and 2 is a shut-off torsion bar, one end of which is fixed to the inside of the rotation main shaft 1 and which is a storing medium for applying a counterclockwise rotational force to the rotation main shaft 1. 11 for roller 1
0 and a pin A25 are provided, and a shock absorber 9 for buffering shocks during opening and closing operations and a movable contactor 19 of an arc extinguishing chamber (not shown) that is a contact of a switchgear are connected.

Reference numeral 3 indicates a main spindle for closing, which is a rotation fulcrum of the closing lever 4, reference numeral 5 indicates a link connected to the closing lever 4, and reference numeral 6 has one end fixed to the inside of the main closing spindle 3 and opposite to the main spindle 3 for closing. It is a loading torsion bar that is a storage medium that gives a clockwise direction. Reference numeral 7 is a large gear that is connected to the closing lever 4 through a link 5 and has a notch tooth portion 7a in a part of its teeth, and 8 is a small gear that meshes with the large gear 7, and is in a closing spring energy storage state. In the notch tooth portion 7a, the gear engagement between the large gear 7 and the small gear 8 is disengaged. Reference numeral 12 is a cam that is connected to the large gear 7 via a cam shaft 13 and is provided with a pin B24. The cam 12 performs the same movement as the large gear 7.

Reference numeral 14 is a closing latch disposed so as to be engageable with the pin B24, 15 is a closing trigger, and 16 is a closing electromagnet 1.
7 is a plunger slidably disposed, and 18 is an operation piece attached to one end of the plunger 16. This operation piece 18 interlocks with the operation of the plunger 16 to move the closing trigger 15 clockwise. Operates to rotate.

Reference numeral 20 is a pullout latch arranged to be engageable with the pin A25, 21 is a pullout trigger, 22 is a plunger slidably arranged on a pullout electromagnet 23, and the plunger 22 is a pullout trigger. 21 to rotate clockwise.

Reference numeral 26 is a name plate for displaying the closing spring energy storage state, which is attached to the link 5, and 27 is a name plate for displaying the closing spring energy release state, which is attached to the end surface of the cam shaft 13. A closing spring energy storage state display name plate 26 is located in front of the closing spring release state display name plate 27, and the closing spring energy is stored from a peep hole (not shown) of a frame cover (not shown). It has a structure that allows you to visually check the released state.

Next, the operation of the conventional spring operating device for circuit breaker will be described. First, the circuit opening operation will be described. In the closed state shown in FIG. 3, the lever 11 is constantly provided with a counterclockwise rotational force by the shut-off torsion bar 2, and the drawer latch 21 and the lever 20 are prevented from rotating counterclockwise. The rotational force is retained by the engagement with the pin A25 provided at 11.

When the extraction electromagnet 23 is excited in this state, the plunger 2 is driven by the electromagnetic force of the extraction electromagnet 23.
2 moves to the right in FIG. By the operation of the plunger 22, the drawer trigger 21 rotates clockwise, and the counterclockwise rotation of the drawer latch 20 is regulated.
Therefore, the pull-out latch 20 is driven by the reaction force from the pin A25.
Rotates in the counterclockwise direction, the pull-out latch 20 and the pin A25 are disengaged, and the lever 11 rotates in the counterclockwise direction. By the counterclockwise rotation of the lever 11,
The movable contactor 19 of the arc extinguishing chamber is actuated in the shut-off direction, and the open state shown in FIG.

Next, the closing operation will be described. Figure 4
In the open circuit state shown in, the closing lever 4 is given a counterclockwise rotational force by the closing torsion bar 6 and is connected to the closing lever 4 via the link 5, the large gear 7 and the cam shaft 13. The cam 12 is given a rotational force in the clockwise direction, and the engagement of the closing latch 14 whose counterclockwise rotation is restricted by the closing trigger 15 and the pin B24 provided on the cam 12 causes the cam 12 to move. The clockwise rotating force of is retained.

When the closing electromagnet 17 is excited in this state, the electromagnetic force of the closing electromagnet 17 moves the plunger 16 to the right in FIG. By the operation of the plunger 16, the closing trigger 15 rotates clockwise, and the rotation of the closing latch 14 in the counterclockwise direction is restricted. Therefore,
The closing latch 14 rotates counterclockwise by the reaction force from the pin B24, the engagement between the closing latch 14 and the pin B24 is released, and the cam 12 rotates clockwise. By the clockwise rotation of the cam 12, the roller 10 provided on the lever 11 is pushed up against the counterclockwise rotational force of the laver 11. Therefore, the lever 11 rotates clockwise against the counterclockwise rotating force of the blocking torsion bar 2.

By rotating the lever 11 clockwise,
As shown in FIG. 5, the pin A25 and the drawer latch 20 are again shown.
Are engaged with each other, the movable contactor 19 of the arc extinguishing chamber is actuated in the closing direction, and is closed. Here, since the closing torsion bar 6 is released while storing the breaking torsion bar 2, the closing torsion bar 6 has a larger stored energy than the breaking torsion bar 2. Immediately after the loading operation is completed, the loading torsion bar 6
Is in a released state, and the released state can be confirmed by visually observing the closing spring released state display name plate 27 through the peep hole of the frame cover.

Here, the small gear 8 is another gear (not shown).
Is connected to a motor (not shown) via the motor, and the large gear 7 is rotated clockwise by automatically starting the motor and rotating the small gear 8 counterclockwise. Due to the rotation of the large gear 7, the closing torsion bar 6 is accumulated through the link 5, the closing lever 4, and the closing main shaft 3. At the position where the tensile load direction of the link 4 exceeds the dead point intersecting the center of the cam shaft 13, the cam shaft 1
3 is given a clockwise rotational force by the counterclockwise rotational force of the closing torsion bar 6 via the closing lever 4, the link 5 and the large gear 7, and the notch tooth portion 7a has a small gear 8a.
The gear engagement between the large gear 7 and the small gear 8 is disengaged. Further, the counterclockwise rotational force of the closing torsion bar 6 causes the large gear 7 to rotate clockwise, the closing latch 14 and the pin B24 are engaged, and the closed state shown in FIG. The name plate for displaying the spring loading state from the peep hole 2
The state of energy accumulation can be confirmed by visually observing 6.

[0013]

As described above, the conventional spring operating device for a switchgear has the name plate 26 for displaying the closing state of the closing spring and the closing state of the closing spring for indicating the stored / released state of the closing spring. Since the display name plate 27 is attached, it is necessary to visually confirm the stored / released state of the closing spring each time.
There was a problem of poor operability. In addition, if the vehicle stops at a position where the energy storage is incomplete near the dead point, an abnormality is recognized only when the next closing operation cannot be performed, resulting in a lack of safety.

The present invention has been made to solve the above problems, and can accurately detect the completion of spring energy accumulation, prevent the closing operation in an abnormal state, and have excellent operability. The purpose is to obtain an operating device for use.

[0015]

The operating device for a switchgear according to the present invention uses a pin connected to the energy storage medium and a latch provided so as to be engageable with the pin as electrical contacts.

[0016]

In the present invention, since the pin and the latch are electrical contacts, the energized state of the energy accumulating medium can be electrically detected by engaging / disengaging the pin and the latch.

[0017]

Embodiments of the present invention will be described below with reference to the drawings. 1 (a) to 1 (c) are plan views, a side view and a circuit diagram of a main portion of the operating device for a switchgear according to an embodiment of the present invention in a stored state, and FIG. (C)
FIG. 3 is a plan view, a side view and a circuit diagram of a main portion of a spring operating device for a switchgear according to an embodiment of the present invention in a released state, for the conventional circuit breaker shown in FIGS. The same or corresponding parts as those of the spring operating device are designated by the same reference numerals, and the description thereof will be omitted. In the figure, 30 is a lead wire connected to one end of the cam shaft 13, 31 is a lead wire connected to one end of the closing latch 14, and the lead wire 3
0 and 31 are connected to a control device (not shown), and the cam 12
The pin B24 provided on the power switch and the engaging portion 14a provided on the closing latch 14 are used as electrical contacts of the electrical switch.
The electric switch is configured to open and close by engaging / disengaging the 24 and the closing latch 14. Where the camshaft 1
An insulator 32 electrically insulates the frame 33 supporting the cam shaft 13 and the large gear 7.

Next, the operation of the above embodiment will be described. In the spring-accumulated state, as shown in FIGS. 1A to 1C, the pin B24 provided on the cam 12 and the closing latch 1 are provided.
Since the engaging portion 14a provided in No. 4 is engaged, the electric switch is closed, and the control device detects that the energy storage is completed. Immediately after the closing operation is completed, as shown in (a) to (c) of FIG. 2, the engagement between the pin B24 and the engaging portion 14a is released, so that the electric switch is opened, and the control device is opened. Then, it is detected as an incomplete energy storage. Here, since the insulator 32 is provided, a signal does not flow from the cam shaft 13 to the frame 33, the large gear 7, etc., and erroneous detection is prevented.

Other operations are similar to those of the conventional spring operating device for switchgear.

As described above, in the above-described embodiment, since the energy storage completion state of the closing spring can be treated as an electric signal depending on the opening / closing state of the electric switch, the circuit can be configured so that the closing signal can be input after the energy accumulation is completed. Since the next closing operation cannot be executed in the state where the energy storage is not completed, the safety is excellent, and it is not necessary to visually check the energy storage state each time, and the operability is excellent.

In the above embodiment, the closing latch 14 that holds the stored energy of the closing torsion bar 6 that is a storage medium and the pin B24 are described as electrical contacts of the electric switch. The pull-out latch 20 for holding the stored energy of the breaking torsion bar 2 and the pin A25 also have the same effect as the electric contact of the electric switch.

[0022]

As described above, according to the present invention, the pin connected to the energy storage medium and the latch provided so as to be engageable with the pin are used as electrical contacts. It is possible to electrically accurately detect the state, prevent a circuit closing operation in an abnormal state, and obtain an operation device for a switchgear having excellent operability.

[Brief description of drawings]

1A to 1C are respectively a plan view, a side view and a circuit diagram of a main part of a switching device operating device in a stored state, showing an embodiment of the present invention.

2 (a) to 2 (c) are a plan view, a side view and a circuit diagram of a main part of an operating device for a switchgear according to an embodiment of the present invention in a released state, respectively.

FIG. 3 is a plan view showing an open circuit state of a conventional circuit breaker spring operating device.

FIG. 4 is a plan view showing a closed state of a conventional circuit breaker spring operating device.

FIG. 5 is a plan view showing a closing spring released state of a conventional spring operating device for circuit breaker.

[Explanation of symbols]

 2 Break-off torsion bar (storing medium) 6 Closing torsion bar (storing medium) 14 Closing latch 19 Movable contact (contact) 20 Drawout latch 24 pin B 25 pin A

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[Procedure amendment]

[Submission date] January 27, 1992

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0005

[Correction method] Change

[Correction content]

[0005] 20 latched outside argument is engageable disposed on pin A25, 21 a pull out trigger plunger slidably disposed in the pull out electromagnet 23 22, this plunger 22 operates the pull out trigger 21 to rotate clockwise.

[Procedure Amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0007

[Correction method] Change

[Correction content]

Next, the operation of the conventional spring operating device for circuit breaker will be described. First, the circuit opening operation will be described. In the closed state shown in FIG. 3, counter-clockwise rotation force is is applied, pulling out Mr. counterclockwise rotation in quotation outer trigger 21 is restricted by the constant blocking torsion bar 2 the lever 11 By the engagement of the latch 20 and the pin A25 provided on the lever 11, the rotational force is retained.

[Procedure 3]

[Document name to be amended] Statement

[Correction target item name] 0008

[Correction method] Change

[Correction content]

[0008] In this state, when pulling out electromagnet 23 is excited, the plunger 2 by the electromagnetic force of the pull out electromagnet 23
2 moves to the right in FIG. The operation of the plunger 22, pull out trigger 21 rotates clockwise, pulling
Regulation of rotation of the counter-clockwise direction of the outer latch 20 is released.
Therefore, to pull out by the reaction force from the pin A25 latch 20
There together rotates counterclockwise, the engagement between the pull out latches 20 and pins A25, the lever 11 is rotated in the counterclockwise direction. By the counterclockwise rotation of the lever 11,
The movable contactor 19 of the arc extinguishing chamber is actuated in the shut-off direction, and the open state shown in FIG.

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0011

[Correction method] Change

[Correction content]

By rotating the lever 11 clockwise,
As shown in FIG. 5, pin A25 and pull out latch 20 again
Are engaged with each other, the movable contactor 19 of the arc extinguishing chamber is actuated in the closing direction, and is closed. Here, since the closing torsion bar 6 is released while storing the breaking torsion bar 2, the closing torsion bar 6 has a larger stored energy than the breaking torsion bar 2. Immediately after the loading operation is completed, the loading torsion bar 6
Is in a released state, and the released state can be confirmed by visually observing the closing spring released state display name plate 27 through the peep hole of the frame cover.

[Procedure Amendment 5]

[Document name to be amended] Statement

[Correction target item name] 0012

[Correction method] Change

[Correction content]

Here, the small gear 8 is another gear (not shown).
Is connected to a motor (not shown) via the motor, and the large gear 7 is rotated clockwise by automatically starting the motor and rotating the small gear 8 counterclockwise. Due to the rotation of the large gear 7, the closing torsion bar 6 is accumulated through the link 5, the closing lever 4, and the closing main shaft 3. At the position where the tensile load direction of the link 5 exceeds the dead point where the center of the cam shaft 13 is crossed, the cam shaft 1
3 is given a clockwise rotational force by the counterclockwise rotational force of the closing torsion bar 6 via the closing lever 4, the link 5 and the large gear 7, and the notch tooth portion 7a has a small gear 8a.
The gear engagement between the large gear 7 and the small gear 8 is disengaged. Further, the counterclockwise rotational force of the closing torsion bar 6 causes the large gear 7 to rotate clockwise, the closing latch 14 and the pin B24 are engaged, and the closed state shown in FIG. The name plate for displaying the spring loading state from the peep hole 2
The state of energy accumulation can be confirmed by visually observing 6.

[Procedure Amendment 6]

[Document name to be amended] Statement

[Correction target item name] 0014

[Correction method] Change

[Correction content]

[0014] The present invention has been made to solve the above problems, the spring energy storing completion can be accurately detected, it is possible to prevent closing operation in the abnormal state, the opening and closing excellent operability equipment The purpose is to obtain an operating device for use.

[Procedure Amendment 7]

[Document name to be amended] Statement

[Correction target item name] 0017

[Correction method] Change

[Correction content]

[0017]

Embodiments of the present invention will be described below with reference to the drawings. Fragmentary plan view of the loaded state of the switchgear operating device showing an embodiment of the (a) ~ (c) is 1 this invention, respectively, partial side view and a circuit diagram of (a) ~ 2 (C)
Fragmentary plan view of the elastically discharged state of the switching devices for spring operating device according to an embodiment of this invention, respectively, a fragmentary side view and a circuit diagram, conventional circuit breaker shown in FIGS. 3 to 5 in FIG. The same or corresponding parts as those of the spring operating device are designated by the same reference numerals, and the description thereof will be omitted. In the figure, 30 is a lead wire connected to one end of the cam shaft 13, 31 is a lead wire connected to one end of the closing latch 14, and the lead wire 3
0 and 31 are connected to a control device (not shown), and the cam 12
The pin B24 provided on the power switch and the engaging portion 14a provided on the closing latch 14 are used as electrical contacts of the electrical switch.
The electric switch is configured to open and close by engaging / disengaging the 24 and the closing latch 14. Where the camshaft 1
An insulator 32 electrically insulates the frame 33 supporting the cam shaft 13 and the large gear 7.

[Procedure Amendment 8]

[Document name to be amended] Statement

[Name of item to be corrected] 0019

[Correction method] Change

[Correction content]

[0019] Other operations, operates similarly to the conventional opening and closing device for a spring operating device.

[Procedure Amendment 9]

[Document name to be amended] Statement

[Correction target item name] 0021

[Correction method] Change

[Correction content]

In the above embodiment, the closing latch 14 that holds the stored energy of the closing torsion bar 6 that is a storage medium and the pin B24 are described as electrical contacts of the electric switch. and pull out holding the energizing energy blocking torsion bar 2 is also the same effects a latch 20 and the pin A25 as an electrical contact of an electrical switch.

[Procedure Amendment 10]

[Document name to be amended] Statement

[Correction target item name] Explanation of code

[Correction method] Change

[Correction content]

[EXPLANATION OF SYMBOLS] 2 blocking torsion bar (energy-storing medium) 6 is turned torsion bar (energy-storing medium) 14 closing latch 19 the movable contact (contact) 20 pull out latch 24 pins B 25 pins A

Claims (1)

Claim: What is claimed is: 1. An energy storage medium for driving a contact of a switchgear, a pin connected to the energy storage medium, and a latch engageable with the pin. In the operating device for a switchgear, which holds energy stored in the energy storage medium by engagement of the pin and the latch, releases engagement of the pin and the latch by input of a closing signal, and drives the contact. An operating device for a switchgear, wherein the pin and the latch are electrical contacts, and the energy storage state of the energy storage medium is detected by engagement / disengagement of the pin and the latch.