JPH06103881A - Operation device with motor for circuit breaker - Google Patents

Abstract

PURPOSE:To provide an operation device with motor for a circuit breaker, which is easy to assemble and in which transmission loss of the drive force is lesser. CONSTITUTION:When an actuation member 1 is to be assembled, a projection 8 thereon 1 is inserted from above into an accommodation recess 10, and a holding piece 3 is fixed to a moving piece 2 so as to be detained with a slide groove 9. This enables easy assembly, and the holding piece 3 can be detained in the slide groove 9 without play, so that upward movement of the handle 6 of the actuation member 1 can be restricted, and transmission loss of the drive force can be reduced. Further because the holding piece 3 can move the slide groove 9, the actuation member can easily be detained with and removed from the handle 6, which facilitates inspection of the manual operation of the handle. If the grooves are provided only in the sliding range, the range can be restricted, and the actuation member 1 is prevented from slipping off.

Description

Detailed Description of the Invention

[0001]

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

[0002]

2. Description of the Related Art A conventional example is shown in FIGS. That is, the electric operating device for the circuit breaker is the circuit breaker 70.
An operating member 73 having a notch-shaped operation concave portion 72 at its tip, which engages with the handle 71 of the device in a detachable manner, and the operating member 73.
A moving body 74 slidably supporting the rear end thereof, and a drive for supporting the moving body 74 in a reciprocating manner in the operating direction of the handle 71 and moving the moving body 74 so that the handle 71 is operated by a remote signal. And a device 75, a dovetail groove 76 is formed in the moving body 74, and a dovetail 77 is formed in the operating member 73.
Are formed to be slidably engaged.

When the operating member 73 is manually slid with respect to the moving body 74 and the operating recess 72 is removed from the handle 71, the handle 71 can be directly operated directly, and the operating recess 72 is engaged with the handle 71 for driving. When the device 75 is driven by a remote signal, the handle 71 can be operated remotely.

[0004]

However, in the electric operating device for the circuit breaker, it is necessary to engage the dovetail groove 77 extending in the longitudinal direction of the operating member 73 with the dovetail groove 76 during assembly. It had the drawback of being difficult. See also ant mortise 77
If an appropriate gap is provided in the engaging portion between the dovetail groove 76 and the dovetail groove 76, the operating member 73 can be smoothly operated manually, but the operating member 73 is slightly rattled in the vertical direction of the handle 71. For this reason, when operating the handle 71 with the operating member 73, the operating recess 72 side of the operating member 73 shifts upward, and the required driving force of the handle 71 increases and a transmission loss of the driving force occurs. Further, when the handle 71 is repeatedly operated, the rattling thereof becomes large, and the transmission loss of the driving force further increases.

Further, in order to check the manual operation of the handle 71 with the cover of the drive unit 75 opened during the assembly inspection, when the operating member 73 is slid away from the handle 71, the operating member 73 becomes unnecessary. In some cases, the operating member 73 slides off the moving body 74. Therefore, an object of the present invention is to provide an electric operating device for a circuit breaker, which can improve the assembly of the operating member and the moving body and reduce the transmission loss of the driving force.

[0006]

SUMMARY OF THE INVENTION An electric operating device for a circuit breaker according to the present invention has a notch-shaped operation concave portion which engages with a handle of the circuit breaker in a detachable manner, and has a convex lower surface at a rear end. An operating member having a slide groove extending in the engagement / disengagement direction on the base side of both sides of the protrusion that has a portion facing the operating direction of the handle, and the protrusion that is slidable in the engagement / disengagement direction of the operation member. A moving body having a storage recess for storing a portion;
A pressing body that is attached to the moving body and has a locking portion that slidably locks in the slide groove; And a drive device for moving the moving body so as to operate.

[0007]

According to the structure of the present invention, the handle can be directly manually operated by sliding the operating member in the engaging / disengaging direction with respect to the moving body and removing the operating recess from the handle. Further, when the operation recess is engaged with the handle, the drive device can operate the handle by a remote signal. In this case, when assembling the operation member, the operation member can be assembled by inserting the convex portion of the operation member into the accommodating concave portion from above and attaching the pressing body to the moving body so as to engage with the slide groove. Assembling becomes easier as compared with assembling the members by sliding them in the longitudinal direction. Further, since the pressing body can be engaged with the slide groove without rattling, the upward movement of the handle of the operating member can be restricted and the transmission loss of the driving force can be reduced. Further, since the pressing body can move in the slide groove, the operating member can be easily engaged and disengaged from the handle, and the check of the manual operation of the handle can be facilitated.
If the slide groove is formed only in the sliding range, the sliding range of the operating member can be regulated, so that the operating member can be prevented from coming off.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS. That is, the electric operating device of the circuit breaker includes the operating member 1, the moving body 2, the pressing body 3, and the driving device 4. The operating member 1 is, as shown in FIG.
The circuit breaker 5 has a notch-shaped operation concave portion 7 engageably and disengageably engaged with the handle 6 at the front end, and a convex portion 8 on the lower surface of the rear end, and the convex portion 8 faces the operating direction of the handle 6. The slide grooves 9 extending in the engagement / disengagement direction are provided on the root sides of both surfaces. In the embodiment, a rectangular bar having a rectangular cross section is used. The end of the recess 30 forming the slide groove 9 serves as the positioning portion 31 of the pressing body 3.

As shown in FIG. 2, the circuit breaker 5 is a three-pole type, has terminals 13 at both ends of the handle 6 in the operating direction, and a mechanism portion (not shown) is provided on the handle 6. The contact part (not shown) can be turned on or off by operation, and when turned on, trips in response to the operation of the abnormal current detection means (not shown), and after the trip, the handle 6 is on the opposite side to the on position from the off position. It contains a known item that can be reset by moving it further.

The moving body 2 has a housing recess 10 for housing the projection 8 slidably in the engagement / disengagement direction of the operating member 1. In the embodiment, the accommodating recess 10 is formed by forming a U-shaped protrusion 11 on the upper surface of a quadrangular body. Reference numeral 12 is a screw hole for fixing the pressing plate, and 33 is a guide hole for reciprocating the moving body 2. The pressing body 3 has a locking portion 32 that is mounted on the moving body 2 and slidably locked in the slide groove 9. In the embodiment, an angle is used, one piece of which has a mounting hole 13 aligned with a screw hole, which is fixed to the moving body 2 with a countersunk screw 14, and the edge of the other piece is engaged with the slide groove 9 to be engaged. The engaging portion 32 is engaged with the handle 6 in the operating direction.

As a result, the operating member 1 can move along the slide groove 9 only in the engaging / disengaging direction, the operating direction of the handle 6 is restricted by the moving body 2, and the vertical direction of the handle 6 is restricted by the pressing body 3. Most of the slides are free of rattling. Therefore, when the handle 6 is moved, the operation concave portion 7 of the operating member 1 moves without pushing a certain point of the handle 6, but since the rattling is restricted by the pressing body 3, the operating member 1 moves in the vertical direction of the handle 6. Move without shifting to. Further, when the operating member 1 is moved in the direction away from the handle 6 in the engagement / disengagement direction, the positioning portion 31 at the end of the slide groove 9 is locked to the pressing body 3, so that the operating member 1 is positioned and retained.

The drive device 4 supports the moving body 2 so as to be able to reciprocate in the operating direction of the handle 6, and moves the moving body 2 so that the handle 6 operates in response to a remote signal. 2 and 3 in the embodiment.
As shown in FIG. 5, a case 15 is provided on a side portion of the circuit breaker 5, and a motor 16 that is rotated by a remote signal is provided with a bottom plate 17.
Is mounted vertically to drive a screw rod 20 via bevel gears 18, 19. The screw rod 20 is supported by a support body 21, and a pair of slide rods 22 are provided on the support bodies 21 and 23 on both sides of the screw rod 20 in parallel to the screw rod 20.
In the moving body 2 described above, the screw hole portion 24 is screwed into the screw rod 20, and the slide rod 22 is slidably fitted in the guide hole 33. Therefore, when the motor 16 is rotated in one direction by a remote signal, the screw rod 20 rotates in one direction and the moving body 2 moves in one of the longitudinal directions of the slide rod 22, and another remote signal causes the motor 16 to rotate. Similarly, when the movable body 2 is moved in the opposite direction when the movable body 2 is rotated in one direction, as a result, the movement of the movable body 2 in one direction causes the handle 6 to move with the operating member 1.
Can be turned on, and by moving in the other direction, it can be turned off or reset. Reference numeral 25 is an ON position detecting switch for stopping the motor 16, 26 is an OFF position detecting switch, and 27 is a reset position detecting switch. 36 to 38 are switch pressing pieces, which are long holes 3
It is fastened by screws 40 via 9. 28 is a remote signal input terminal, and 29 is a cover.

According to this embodiment, the operating member 1 is slid in the engaging / disengaging direction with respect to the moving body 2 so that the operating concave portion 7 is moved to the handle 6
The handle 6 can be manually operated directly by removing the handle. When the operation recess 7 is engaged with the handle 6, the drive device 4 can operate the handle 6 by a remote signal. In this case, when assembling the operating member 1, the convex portion 8 of the operating member 1 is inserted into the accommodating concave portion 10.
Since it can be assembled by inserting it from above into the moving body 2 so that the pressing body 3 is engaged with the slide groove 9, it is possible to compare the conventional operating member by sliding in the longitudinal direction. And easy to assemble. Further, since the pressing body 3 can be engaged with the slide groove 9 without rattling, the upward movement of the handle 6 of the operating member 1 can be restricted and the transmission loss of the driving force can be reduced. Further, since the pressing body 3 can move in the slide groove 9, the operation member 1 can be easily engaged with and disengaged from the handle 6, and the check of the manual operation of the handle 6 can be facilitated. For example, at a stage during assembly before attaching the cover 29 to the case 15. The operation member 1 can be slid to perform a manual operation check. Further, only the sliding range of the operating member 1 is the slide groove 9
By forming, the sliding range of the operating member 1 can be regulated, so that the operating member 1 can be prevented from coming off.

[0014]

According to the electric operating device for a circuit breaker of the present invention, when assembling the operating member, the convex portion of the operating member is inserted into the accommodating concave portion from above, and the pressing body is engaged with the slide groove. Since it can be assembled by mounting it on the base plate, it is easier to assemble than the conventional operating member is slid in the longitudinal direction. Further, since the pressing body can be engaged with the slide groove without rattling, the upward movement of the handle of the operating member can be restricted and the transmission loss of the driving force can be reduced.
Further, since the pressing body can move in the slide groove, the operating member can be easily engaged with and disengaged from the handle, and the check of the manual operation of the handle can be facilitated. There is an effect that the disengagement of the operating member can be prevented.

[Brief description of drawings]

FIG. 1 is a partially exploded perspective view of an embodiment of the present invention.

FIG. 2 is a partial cross-sectional plan view with a cover removed.

FIG. 3 is a vertical sectional view of the drive device.

FIG. 4 is a cross-sectional view of an engaging portion between a moving member and a moving body.

FIG. 5 is a side view of an engaging portion between an operating member and a moving body.

FIG. 6 is a perspective view of the operating member as viewed from the back side.

FIG. 7 is a plan view of a conventional example with a cover removed.

FIG. 8 is a vertical cross-sectional view of the drive device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Working member 2 Moving body 3 Pressing body 4 Drive device 5 Circuit breaker 6 Handle 7 Operation recessed part 8 Convex part 9 Sliding groove 10 Storage recessed part 32 Locking part

Claims (1)

[Claims] 1. A protrusion having a notch-shaped operation concave portion which is detachably engaged with a handle of a circuit breaker at a front end and a convex portion on a lower surface of a rear end of the convex portion facing in an operation direction of the handle. An operating member having slide grooves extending in the engagement / disengagement direction on the root sides of both surfaces, a moving body having an accommodating concave portion for accommodating the convex portion slidably in the engaging / disengaging direction of the operating member, and the moving body. A pressing body having a locking portion that is mounted and slidably locked in the slide groove, and supports the moving body so as to be able to reciprocate in the movement direction of the handle and to operate the handle by a remote signal. An electric operating device for a circuit breaker, comprising: a drive device for moving the moving body.