JPS5963636A - Remote operation unit for circuit breaker - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] Is the present invention a remote control device for a circuit breaker? In particular, the present invention relates to a remote control device for a circuit breaker, which can be opened and closed by remote control via an electric motor, and can be easily opened and closed directly using a manual handle provided on the circuit breaker.

FIGS. 1A and 1B are disclosed in Japanese Patent Application No. 1-/Ir/2 previously filed by the applicant.

An example of a remote control device for a circuit breaker is shown. In ζ, l is a circuit breaker, 2 is its opening/closing lever, and 3 is a board provided on the top of the opening/closing lever. On this board 3 is a supporting metal fitting 4.
A and B are provided, and a rotary shaft 5A of an operating motor j and a rotatable screw holder 6 directly connected thereto are pivotally supported between the supporting metal fittings 1A and 18.

7 is a sliding guide culm in which a threaded rod 6 is sandwiched between support fittings A and B, and provided parallel to this; t is a guide rod 7 G, :1H
)7) So? i? :! 1LI fJ (,E is a sliding frame attached to 5, and 7 is A-J-6 and fJ is smoothly screwed together, and the guide punch 7G is Yl->Tte?tf
nUJ's self-appointed Yugan Nando made it 4. However, there is a gap between this player 1 and the sliding frame G':t &! The impact spring/θ is Rzuke.

16c, //i is a sweeping handle, handle/1
5 Lower F'il (//A, connector R1i//B and the lower connector ttlζ// 13 has a tripping plate 1/C fitted.] 2 is fixed M-f to the opening/closing lever! It is a connecting punch, and the connecting punch/2 and the handle// have a tripping plate.
It is fitted in the vertical direction (5) so that it can move freely in the vertical direction,
The oblong hole /3 provided in the connecting punch /2 and this oblong hole /3 are L'
It is connected via a screw bottle with soil passing through it.

Therefore, a coil spring/3 is provided between the operating handle L/'s tripping plate//C and the connecting punch 12, and as long as the handle/15 is pressed down 7 times, this spring/S
The bin is pulled up by the spring force of the oval hole/3.
It is held in a position that is fixed to the upper part of the lever (see Figure 2 (B) 1 ((1)).

This is a locking part of a notch provided in the connecting punch 12, and when it is opened or closed by remote control as described later, the locking pin /4 of the link capital j'4 lt attached to the sliding frame r is used.
A %: By engaging this locking %/2A, the operation handle is moved βW in the opening/closing direction.

In other words, as shown in Fig. 3, a locking pin/6A is provided at the end of the link member/6, and a rotating pin/7 is provided on the side of the sliding frame r of the link member/6 itself. A spring Iff is rotatably mounted through the spring Iff and is hooked between the base plate 3 and
The locking pin/6A is always Q% by the spring force of ? It is designed to be biased in the same manner as the locking portion Yl8 shown in Figures (AJ and (B)).

The operation of the remote control device t configured in this way during a patrol operation will be described. During such operation, the operating handle // was not manually operated, and therefore, the lock pin /2A of the link member /6 was engaged with the lock i11/2A of the connecting punch 12. in a state.

Therefore, in the case of the handle l/ and the opening/closing lever 2 as shown in t ty3 (p,) and (BJ), it is assumed that the breaker l is in the open state.
) 7. , (assuming that the motor S is rotated 1=J force in order to close the circuit from the 4-stage operation position 1 in the state J/42, and as the motor rotates) and move to the left through spring/θ? #The moving frame r is also moved to the left.

Well, this? f) ': I+b frame f&, T-IJ
:z7filS(4#, the handle/l that is engaged through 7 and the gate opening lever are to the left of the sliding frame?
As the circuit breaker moves, the circuit breaker is rotated counterclockwise in FIG.

Furthermore, in order to open the circuit breaker l from the closed/closed state by operating speed 5, it is sufficient to energize the motor j to rotate in the opposite direction at that operating position.
Move the sliding frame r from the left to the right in Figure 1 (Δ),
Therefore, the opening/closing lever 2χ can be rotated from the left side around the hour H1 to lead to the open position, and the breaker can be opened.

Note that the spring /θ serves as a buffer during the remote opening/closing operation as described above.

Next, a case will be described in which the breaker l is operated on the spot. In this case, lightly press the handle //A of the handle // and apply force in the direction of the arrow P shown in Fig. 2 (A) and (B), and then move the handle l/ from the right to the left or Just rotate it from left to right. In other words, the above handle W//
Just press A lightly downward to release the trip plate//C to release the spring/
It moves downward against the spring force of S, and releases the locking pin /6A of l'A p41t+ which is engaged with the locking part /2A of the connecting punch 12 from the engagement.

In this way, the opening/closing lever 2 can be operated together with the knob l/independently of the sliding rod t, making it easy to manually open and close the breaker.

However, such remote control devices for conventional circuit breakers still have the following problems.

(1) The structure is such that the loose-fitting nand is reciprocated by the rotational movement of the screw ball to operate the handle R and the opening/closing lever. It is necessary to obtain enough force to operate the opening/closing lever by this operation, and since this operation is required repeatedly, special thread machining is required, which is costly.

e) Generally, the rotation speed of the electric motor is high.

If the sesame is used without deceleration, an impact load will be applied to the breaker during opening/closing operation, which will require deceleration and be expensive.

(3) During manual operation, it is necessary to push the handle once, which is troublesome.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a remote control device for a circuit breaker which is easy to operate and can be obtained at a low cost by solving these problems.

In other words, the oscillating lever 114 is supported via a first clutch that allows the shaft to rotate only in one direction, and is attached via a second clutch that only allows rotation in the same direction as the first clutch. and an opening/closing operation shaft having an opening/closing operation shaft having an arm and an eccentric cam that engages with the swing lever, and a remote control motor that swings the swing lever by rotation of the eccentric cam, and a remote control motor that engages with the arm. a slide plate that reciprocates as the opening/closing operation shaft rotates; and a slide plate that is engaged with the slide plate;
It is equipped with an opening/closing lever that opens or closes a circuit by the forward or backward movement of the slide plate, and during remote operation, the rotation of the remote control motor swings the swinging lever to step the opening/closing operation shaft. The slide plate can be opened or closed by rotating it in one direction, and the slide plate can be moved forward or backward to open or close the circuit. During manual operation, the slide plate can be opened or closed simply by rotating the opening/closing operation handle half a turn in one direction. It is characterized in that it opens or closes a circuit by moving forward or backward.

The present invention will be described in detail below based on the drawings.

Figures LA) and CB) show one embodiment of the present invention, where 〃 is a pedestal for attaching the frame l to the circuit breaker l, and n is the horizontal direction in the figure along the lower surface of the frame I. 23 is a slide plate that can be slid freely on this slide plate n? In order to slidably support the frame 1, a sliding plate protruding from the lower surface of the frame 1 is provided at the bent portion 2.
2A and 〃B, and two mutually parallel guide bodies 2da are fixed between these bends 51s22A and 22B. B is a lever holding member in which these two guide rods 2g are passed through and the opening/closing lever is held between them; I is a lever holding member that is hooked along the guide rod 211 between the holding member B and the bent portions nA and 22B. The holding member Δ is held by the spring force exerted from both sides by these holding springs.

Furthermore, the slide plate 22 has an oval sliding contact hole 1χ as shown in Fig. S, and a pair of plates A and XB are fixed to the upper surface thereof (see Fig. No. Next,
The mechanism for sliding this slide plate left and right will be explained with reference to FIG.

29 is a sliding pin ZAtt that fits into the sliding hole 1 above.
The opening/closing operation shaft 3Q of this arm has a ring 31 and a handle 32 at the lower end 30A. It will stick. Furthermore, a unidirectional clutch (hereinafter referred to as a second clutch) that swings through the operating shaft 30 is attached to the operating shaft 30. Sexual clutch (hereinafter referred to as the first crante (・U) J
It is pivotally supported by a support seat 36 via j.

Here, both the first clutch 35S and the second clutch 33 are restrained when the shaft 30 attempts to rotate in the counterclockwise direction. I is a manual knob that is attached to the top of the shaft 30, and 3t is a CIJ song that fits between the attachment parts to prevent removal.

Furthermore, the swing lever has a cam fitting groove in its arm A.
A cam l'/ attached to the rotating shaft of the remote control motor % is fitted into this cam groove j4iB.

Returning again to Figure q (A) and CB), p is the frame U
It is a changeover switch attached to the bottom of the 1. When the slide plate n is slid to the right or left during remote control, the plate attached to the slide plate n & 21A or ffB
When the switching switch is pressed, the motor Q is stopped and the opening/closing operation is completed.

Next, the opening/closing operation of the remote control device configured in this way will be explained. Figures LA, ) and CB, ) show (
・In such a state where the opening/closing lever is tilted to the right, the breaker l is assumed to be in a closed state, for example, and the motor ψ is now driven from a remote operating position. As the motor ψ rotates, the cam II/ is eccentrically interlocked with the cam 34IB of the swinging lever 31, causing the lever 3 to swing.

When the lever 3'IO) swings, its arm 311
When A moves in the 11-clockwise direction, the /11 pair relationship between the operating shaft 3θ and the second clante 33 is equivalent to the operating shaft 3θ rotating counterclockwise, and the operating shaft 3θ The rotation of the operating shaft 3θ is also restricted by the second clamper 33, so that the arm J? Rotates clockwise with A. 16. At this point, the first clutch 3s does not restrict the clockwise rotation of the operating shaft 3θ.

Subsequently, when the arm part A moves counterclockwise, the operating shaft 3o is not restrained by the second clamp 33, but the operating shaft 3θ is rotated counterclockwise by the fast/clamp 3s. Since it is Z-restricted, the operating shaft 30 does not rotate in any direction, and only the chest 341A moves counterclockwise due to the slippage in the second clamp 33.

Thus, as the motor rotates, the operating shaft 3θ only rotates in small increments in the direction of the clock! Continue with 7I. However,
As the operating shaft 3θ rotates, the arm J rotates, and the slide plate is moved to the left in the figure while the pin 29A of the arm slides on the contact hole in the plate. Therefore, the opening/closing lever held by the holding member J is tilted to the left as the slide plate n moves, and when the switching switch is pressed by the leaf spring JB, the motor is stopped and the breaker l is opened. The operation is completed.

Furthermore, in order to perform the circuit opening operation 5 from the circuit opening state, the operating position i is
All you have to do is short-circuit the input signal from t and turn on t11J, thereby driving the motor ψ.
By rotating the operating shaft 3θχ clockwise in the same manner, the slide plate n can be moved from the right to the left, thereby completing the circuit closing operation at the position where the leaf spring A presses the spring insert. can.

In the case of manual operation, the opening/closing lever can be continuously opened and placed in the lever position by simply moving the handle I in the clockwise direction. In addition, the slide plate is designed to operate with a stroke that goes slightly beyond the opening and closing positions of the opening/closing lever, in order to ensure reliable opening and closing, but this overtravel is compensated for by the retention spring. Absorbed by the spring force.

As described above, according to the present invention, the opening/closing operation shaft is provided with a first clutch, a second clutch, and an arm having the same directionality, and the operation shaft is supported via the first clutch. A swing lever is installed to rotate the operation shaft in only one direction through the use of a fourth clamp, and the swing lever is caused to swing by the eccentric movement of a cam attached to the shaft of the remote control motor. The rotation of the arm causes the slide plate to reciprocate and guide the opening/closing lever to the open and close positions. Therefore, during remote control, the motor rotates the operating shaft in small increments in one direction, allowing the slide plate to move back and forth through the arm and slide plate. The breaker can be opened and closed by operating the opening/closing lever, and during manual operation, the breaker can be opened and closed by simply turning the operating shaft half a turn in one direction, unlike conventional
Eliminates the need for expensive threading or motor deceleration devices,
Manual operation is also easy, making it even more user-friendly for operators.
1′.

[Brief explanation of the drawing]

Figures 1 (A) and (B) show an example of the configuration of a conventional remote control device for a circuit breaker; a side view and a plane N% Figures 1 (A) and LB) respectively show its manual operation handle and opening/closing lever. Fig. 3 is a side view of a link member used also as a link member during remote operation of the remote control device; 5 shows a side view and a top view taken from line A-A of the remote control circuit breaker of the present invention, respectively, and a top view of the device; FIG. motor and G
It is a perspective view showing this slide board. L...Circuit breaker, N...Opening/closing lever. 3... Board, #A, lIB... Support metal fittings, 5... Operating motor, 5A... Rotating shaft, 6... Screw keyaki, 7... Guide rod, t...? lf moving frame, Ri...bottom pad, IO...loose sleeve spring. /l...Operation handle. //A...Handle part, //13...Kent part, //C...Trip plate. /2...Connecting rod, 12Δ...also 1mm stop, 13...Oval hole. lg...Screw bottle, 15...Coil spring. /, <...link member, /6A...locking bin 1 17...rotating bin. 7g...spring, 〃...pedestal. 1...Frame, n...Slide plate, #A, #B...Bending portion. n... Guide portion, 2g... Guide rod, B... Holding member, 2t... Holding spring. l...sliding hole, XA, 21B...plate spring, no...arm, 29A...sliding bottle, 3θ...operating shaft, JI7A...lower end, 3/... Wansha, 32...Nand, 33...81.2 Krante, 3I/,...1iJ5 excitation lever, 3gA, shouting PAs. 3g B...ri/l, 35...first clamp, 3≦...support seat, 37...manual handle, 3g...C cylinder, gθ...motor. l/...cam, I/2...town name° switch. Patent issued M@Dai Fuji Electric I! Zozo Co., Ltd. Figure 1 (B')? Figure 2 (A) Figure 2 (B) Figure 4 (A) 2''1

Claims (1)

[Claims] The swing lever and arm are supported via a first clutch that allows the shaft to rotate only in one direction, and are attached via a first clutch that allows rotation only in the same direction as the first clutch described in 6iJ. an opening/closing operation shaft having...J tlt+
: An eccentric cam that engages with the swinging lever is mounted on the shaft, and the drilling swing is performed by the rotation of the single-centered cam: A motor for operating the mud surface that swings the lever is engaged with the arm to perform the opening/closing operation. A slide plate that reciprocates by the rotation of the shaft, an opening/closing lever that is attached to the slide plate and opens or closes the circuit by the forward or backward movement of the slide plate; Due to the rotation of the motor,...I record!
6'a Swing the lever to open the front dl, then rotate the operating shaft step by step in one direction, and move the slide plate forward or backward to open or close the circuit. 7.The circuit is characterized by the fact that during the disconnection operation, the front @C opening/closing operation handle is simply rotated quickly in one direction, and the #distribution slide plate is moved forward or backward to open or close the circuit.
Remote control of Ui device 1 also