JPH0721051Y2 - Switchboard charging unit closing device - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field of the Invention> The present invention relates to a portion where an automatic closing type electric device such as a drawer type circuit breaker housed in a switchboard is connected to a busbar device in the switchboard. The present invention relates to a switchgear closing device for a switchboard which can be automatically closed when the electric device is separated from the busbar device.

<Prior Art> As a conventional switchgear closing device of this type of switchboard, as shown in FIGS. 7 and 8, a horizontal direction is provided between a busbar device 17 and an automatic closing type electric device 9 in a switchboard. Support shafts on both ends
It is known that the closing plate 31 having 31a is held from both sides by a vertical rail 37 provided with a groove 37a through which the support shaft 31a can move. In contrast to this type of closing device, the electric device 9 usually has a tip portion at a predetermined position on both outer sides of the self-closing clip 10 for electrically closing the nuclear electric device with the bus bar device 17. A closing plate operating piece 38 having a required slope 36 at
Is provided so as to project.

When the automatic closing type electric device 9 as described above is moved from the opening position to the closing line position to the closing position with respect to the bus bar device 17 in the direction of the arrow P shown in the drawing, first, the slope of the closing plate operating piece 38 is moved. The tip comes into contact with the lower surface of the support shaft 31a and the closing plate 31
When the electric device 9 is further moved in the direction of arrow P, the support shaft 31a moves the slope 3 of the closing plate operating piece 38.
Rise along 6. Therefore, the closing plate 31 also has its supporting shaft 3
Since 1a is simultaneously guided by the groove 37a of the rail 37 and rises in the vertical direction, the electric device 9 and the bus bar device 17 at the time when the support shafts 31a at both ends ride on the upper edge 38a of the operation piece 38.
The space of the closing part for passing the closing clip (10) between and is opened. When the electric device is further moved in the direction of arrow P, the closing clip 10 enters the closed state with the busbar device 17.

Next, when the electric device is separated from the busbar device 17 from the above state, the electric device 9 is moved in the direction opposite to the direction of arrow P in FIG. 8 contrary to the case of the above-mentioned closing. The supporting shaft 31a moves on the slope 36 of the closing plate operating piece 38 by performing the process reverse to the above, and the closing plate 31 descends by its own weight to return to the original state so that the busbar device 17 is moved to the electric device 9 side. It seems to be closed against.

<Problems to be solved by the invention> However, in the conventional charging unit closing device for the switchboard,
The integrally formed closing plate 31 is guided to the guide groove 37a of the rail 37 by the slope 36 of the closing plate operating piece 38 of the self-closing type electric device 9 so as to move upward, so that the closing clip 10 of the electric device 9 is generated by the bus bar. Since the space required to close the device 17 is opened, the operation piece 38 pushes up the entire height of the closing plate 31 to open the space 36. As a result, the moving distance of the electric device 9 in the direction of arrow P also increases, and the electric device 9
The problem is that the depth dimension of the switchboard that houses the switchboard is increased, and the external dimensions, weight, and installation area of the switchboard are large.

<Means for Solving the Problems of the Invention> In view of the above-mentioned problems of the conventional charging unit closing device of the switchboard, the present invention is an automatic closing type electric device such as a drawer type circuit breaker housed inside the switchboard. In a switchgear closing device of a switchboard, a part of the switchboard for closing the busbar device in the switchboard is automatically closed by a closing plate when the electric device is separated from the busbar device. The plate is composed of two plate-like bodies, and one of the plate-like bodies is vertically movably supported by vertical guide means arranged on both sides in the horizontal direction, and the other plate-like body is supported by the one plate-like body. The plate-like body is rotatably connected and supported at the lower edge of the plate-like body or at an appropriate position in the switchboard in the moving direction of the electric device.

<Operation> By configuring the distribution board charging unit closing device according to the present invention as described above, when the electric device is closed with the bus bar device, the other plate-shaped member is a closing plate operating piece of the electric device. Since it is pushed by the tip part and easily falls toward the busbar device side to open a part of the opening on the front surface of the closing part, the one plate-shaped body of the one plate-shaped body is equivalent to the height of the other plate-shaped body. Overall height can be lowered. As a result, the lifting amount of the one plate-shaped body is reduced, and accordingly, the slope length of the operation piece for operating the one plate-shaped body, and thus the electric device is closed with the busbar device. It is possible to shorten the distance that has to travel under the floor.

<Embodiment of the Invention> Next, details of the present invention will be described based on an embodiment shown in the drawings.

In one embodiment of the switchgear closing device for the switchgear according to the present invention illustrated in FIGS. 1 to 3, the busbar device 17 and the self-closing electric device 9 in the switchboard are supported on both sides in the horizontal direction. The plate-like body 1 having the shaft 4a is provided with the supporting shaft from both sides.
4a is adapted to be held by a vertical rail 7 having a groove 7a adapted to move therein, while the electrical device 9 is provided with an automatic means for electrically closing the electrical device with a busbar device 17. In the case of the conventional automatic closing type electric device and the switchgear closing device of the switchboard, the closing plate operating piece 8 having the required sloped surface 6 is provided at a predetermined position on both outer sides of the closing clip 10 so as to project therefrom. Is the same as.

However, in the switchgear closing device of the switchboard according to the present invention, the closing plate is composed of the plate body 1 and another plate body 2 and is supported by the grooves 7a of the rails 7 on both sides of the plate body 1. The shaft 4a is held by mounting plates 4 provided at both ends of the plate 1 in the horizontal direction, and rollers 3 are provided.
On the other hand, another plate-shaped body 2 is rotatably connected to and supported by the lower edge of the plate-shaped body 1 via a hinge 5, and when pushed by the electric device 9, the plate-shaped body 2 can easily fall toward the busbar device 17 side. However, when the electric device 9 is completely separated from the bus bar device 17, the lower edge of the plate-shaped body 2 interferes with the upper edge of the insulating plate 14 provided on the switchboard and is pushed from the electric device 9 side. Even if it does not fall over, the closing action of the charging part will not be overlooked.

In the charging unit closing device according to the present invention constructed as described above, when the self-closing electric device 9 in the position illustrated in FIG. 2 is moved in the direction of arrow P shown in the figure, first, the front surface of the electric device 9 is moved. The tip ends of the closing plate operating pieces 8 arranged on both outer sides of the closing clip 10 come into contact with the lower surface of the roller 3 of the lower end support shaft 4a to lift the plate-shaped body 1. When the electric device 9 is further moved in the direction of arrow P, the roller 3 rolls along the slope 6 of the operation piece 8 and the plate-shaped body 1 has its support shaft.
4a is guided by the groove 7a of the rail 7 and ascends. As a result, the plate-shaped body 2 is pulled up together with the plate-shaped body 1 and connected to the lower edge of the plate-shaped body 2 through the hinge 5, and the lower edge of the plate-shaped body 2 is separated from the interference of the upper edge of the insulator 14, and the plate-shaped body 2 is removed. It becomes rotatable toward the busbar device 17.

When the electric device 9 is further moved in the direction of the arrow P, the roller 3 of the support shaft 4a of the plate-shaped body 1 accompanied by the plate-shaped body 2 rolls up along the slope 6 of the operation piece 8 and rises, When the roller 3 rides on the upper side 8a of the operation piece 8, the tip of the closing clip 10 of the electric device reaches a position immediately below the plate-shaped body 1, that is, a position where it hits the plate-shaped body 2. When the electric device 9 is pushed further into the tip, the plate-shaped body 2 is tilted toward the busbar device 17 side by the tip of the closing clip 10 and the opening at the front of the charging portion for closing the closing clip 10 to the busbar device is completed. And the electric device 9 is further moved in the direction of the arrow P to close the electric device 9 to the busbar device 17 via the closing clip 10. In this state, the lower edge of the plate 2 rides on the horizontal upper side of the closing clip 10 (Fig. 3).

Next, when the electric device 9 in the closed state with the busbar device 17 is moved in the direction opposite to the direction of the arrow P shown in the drawing as described above, first, the closing clip 10 is separated from the busbar device 17, and then the plate is closed. The strip 2 separates from the closing clip 10 by its own weight and returns to its original vertical state, partially closing the opening on the front surface of the charging part for closing the closing clip 10 to the busbar device. When the electric device 9 is further pulled out, the plate upper body 1
The roller 3 of the support shaft 4a moves from the upper side 8a of the operation piece 8 to the slope 6. Further, when the electric device 9 is pulled out in the direction opposite to the arrow P, the roller 3 descends along the slope 6, so that the plate-like body 1 with the plate-like body 2 descends by its own weight using the groove 7a of the rail 7 as a guide, At the position where the tip of the operation piece 8 is away from the roller 3, the entire opening on the front surface of the charging portion for closing the closing clip 10 to the busbar device by the plate-shaped body 1 and the plate-shaped body 2 is completely closed. Return to the state. At the position where the electric device 9 is completely separated, the lower edge of the plate-shaped body 2 is an insulating plate 14.
The front surface of the charging section is completely closed without any risk of colliding with the upper edge of the above and falling down toward the busbar device 17 side.

Further, in another embodiment of the device for closing the charging portion of the switchboard according to the present invention, which is illustrated in FIGS. 4 to 6, the device is supported by the rail 7 constituting the closing plate via its supporting shaft 4a. The plate-shaped body 12 separated from the plate-shaped body 1
However, it is rotatably supported on the floor 19 of the switchboard that supports the electric device 9 through appropriate supporting means and a hinge 15 with a spring. When the charging plate of the busbar device 17 is completely closed as the closing plate, the upper edge of the plate-shaped body 12 interferes with the lower edge of the plate-shaped body 1 and is pushed in the direction of arrow P shown in the figure. Even if it is done, it is prevented from falling toward the busbar device 17.

Also in the case of the present embodiment, when the electric device 9 is moved in the direction of the arrow P or in the direction opposite to the direction of the arrow P, the operation piece 8 is interlocked with the movement of the electric device 9. Also, the operation of vertically moving and rotating the two plate-like bodies 1 and 12 of the closing plate by the closing clip 10 to open and close the opening on the front surface of the charging section is exactly the same as in the above-mentioned embodiment. However, in the case of this embodiment, since the plate-shaped body 12 is supported via the spring hinges 15, when the electric device 9 is separated from the busbar device 17, the direction opposite to the direction of the arrow P shown in the figure is shown. When moved in the direction, the plate-like body 12 supported by the spring hinge 15 is released from the closing clip 10 that has been pushed so far, and at the same time, automatically returns to the original state by the spring and stands vertically. become.

In the above-mentioned two embodiments, the operation piece for operating the plate-shaped body 2 or 12 of the closing plate is also used as the closing clip 10.

<Effects of the Invention> In the present invention, as described above, the electric device serves as a portion where the automatic closing type electric device such as a drawer type circuit breaker housed inside the switchboard closes the busbar device in the switchboard. In a switchgear closing device for a distribution board, which is automatically closed by a closing plate when it is separated from the device, the closing plate of the closing device is composed of two plate-like bodies, and one of the plate-like bodies is Vertically movably supported by vertical guide means arranged on both sides in the horizontal direction, and the other plate-shaped member is placed at a lower edge of the one plate-shaped member or in an appropriate position in the switchboard in the moving direction of the electric device. By rotatably connecting and supporting the closing plate, the amount of vertical movement of the closing plate operating piece of the electric device of the electric device is reduced to the conventional closing plate by the amount of the other plate-shaped member that falls toward the busbar device. Compared to a few, it Only by reducing the amount of horizontal movement of the electrical device in the switchboard, it is possible to reduce the depth of the switchboard,
Therefore, there is an effect that the outer size, weight and installation area of the switchboard can be reduced.

[Brief description of drawings]

FIG. 1 is a schematic front view showing an embodiment of a closing plate of a charging device closing device for a switchboard according to the present invention, and FIG.
FIG. 3 is a schematic side view of the closing device viewed in the direction A, FIG. 3 is a schematic side view showing a closing time of the automatic closing electric device and the busbar device in the closing device illustrated in FIG. Four
FIG. 5 is a schematic front view showing another embodiment of a closing plate of a switchgear closing device for a switchboard according to the present invention, and FIG.
FIG. 7 is a schematic side view of the closing device seen in the direction B, FIG. 6 is a schematic side view showing a closing time of the automatic closing type electric device and the busbar device in the closing device illustrated in FIG. Is a schematic perspective view showing a conventional switchgear closing device for a switchboard,
The figure represents a schematic side view of the closure device. 1,2,12 …… Plate, 4a …… Support shaft, 5 …… Hinge, 7 ……
Rail, 7a ... Groove, 8 ... Closure plate operation piece, 9 ... Automatic closing type electric device, 15 ... Spring hinge, 17 ... Busbar device,
19 ... floor.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References Microfilm (JP, U), which is a photograph of the contents of the specification and drawings attached to the application for Japanese Patent Application No. 56-49134 (No. 57-163112). Micro film (JP, U) of the contents of the specification and drawings attached to the application for Japanese Utility Model Application No. 53-108787 (No. 55-25744)

Claims (1)

[Scope of utility model registration request] 1. An automatic closing type electric device such as a drawer type circuit breaker housed in a switchboard automatically closes a portion of the switchboard which is closed with a busbar device when the electric device is separated from the busbar device. In a switchgear closing device for a switchboard which is adapted to be closed by a closing plate, the closing plate of the closing device is
One plate-shaped body is supported by vertical guide means arranged on both sides in the horizontal direction of the plate-shaped body so as to be movable up and down, and the other plate-shaped body is formed by the one plate-shaped body. A switchgear closing device for a switchboard, which is rotatably connected and supported at a lower edge of a body or at an appropriate position in a switchboard in a moving direction of the electric device.