JPS6022724Y2 - control center - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a control center whose overall height is reduced to facilitate maintenance and operation of the unit.

As shown in FIG. 1, a conventional control center has a vertically long housing 1 in which a vertical busbar is installed, and a plurality of unit chambers 2 arranged in multiple stages in the vertical direction. A wiring room 3 is formed vertically in each unit room 2, and each unit room 2 houses a unit 4 that can be freely moved toward and away from a vertical bus bar.

When a plurality of casings are installed, the plurality of casings are installed in rows in the left-right direction.

However, this type of control center usually has a height of 2
30077177! In addition, the unit 4, which is housed in the high unit room 2 inside the housing 1, is very difficult to maintain and operate. There are drawbacks that make it difficult.

In addition, in a double-sided control center where unit rooms are provided on both sides of a vertical busbar, and the units in the front and rear unit rooms share the vertical busbar, the front unit and the rear unit are connected to one phase of the vertical busbar. Since the positions of the eyes and the third phase are reversed, it becomes difficult to manufacture and assemble the unit, and special care must be taken when storing the unit.

Taking into account the above points, this idea houses multiple units that can move toward and away from the horizontal bus line in the left-right direction in a housing that has a horizontal bus bar inside. This will be explained in detail with reference to the drawings from FIG. 2 showing an example.

In these drawings, reference numeral 5 denotes a horizontally long housing stacked in multiple stages in the vertical direction, and horizontal board frames 6a, 6b, 6.
c, 6d and intermediate frame? a and 7b constitute the skeleton of the casing 5, and an upper plate 8a and a lower plate 8 are provided on the upper and lower rear surfaces of the casing 5, respectively.
b, the rear plate 8c is attached.

9 is the panel frame 6c, 6d and intermediate frame at the rear of the housing 5? a,
Busbar chamber formed by 7b, 10a, 10b, 10c
are three-phase horizontal busbars in the left and right direction that are branched from a vertical busbar (not shown) on the side surface of the casing 5 and arranged in the busbar chamber 9 in the vertical direction; Is the end the middle frame? Support plate 11 installed between a and 7b
It is supported by an insulating busbar support 12 fixed to.

13 is a plurality of unit chambers formed in the front part of the housing 5;
4 is a wiring room formed at the bottom of the unit room 13;
The unit room 13 and the wiring room 14 are formed by board frames 6a, 6b and intermediate frames 7a, 7b.

Reference numeral 15 indicates a wiring terminal room formed at the left end of the housing 5, and reference numeral 16 indicates a plurality of units that are housed in the unit room 13 in a row in the left and right direction so that people can move freely. It is composed of plates 17a, 17b, a lower plate 17c, and a rear plate 17d, and electrical parts are installed inside the unit body 16'.

18 is a door attached to the front of the unit body 16', and the unit 1 is opened through a switch hole 19 formed in the door 18.
6 is operated.

20 a and 20 b are L-shaped and inverted-shaped rails in the front-rear direction that are installed between the board frame 6 a and the intermediate frame 7 a and located on the top surface of the storage position of each unit 16 in the unit chamber 13; are both side plates 17a.

The roller 21 is a rotatable roller attached to the upper inner surface of the roller 17b, and when the unit 16 is moved to the unit room 13, the roller 21 is suspended from the rails 20a, 20b so as to be freely drawn back and forth.

A plug (not shown) for the unit 16 to be connected to and separated from the horizontal busbar chamber 10a+10bt 10c is provided on the rear surface of the rear plate 17d of the unit main body 16'. The plug is horizontal bus line 10
a, iob, Inc. to supply power to the electrical components within the unit 16.

22 is a cable whose one end is connected to the unit 16. When the unit 16 is stored in the unit room 13, the central part of the cable 22 is placed in the wiring room 14, and the other end of the cable 22 is placed in the wiring terminal room 15. connected to.

Therefore, according to the embodiment, the busbar chamber 9, the unit chamber 13, and the wiring chamber 14 are formed in the casing 5 that is long in the horizontal direction, and a plurality of units 16 can be stored in the unit chamber 13 side by side in the horizontal direction. This allows it to be used in places with vertical restrictions, and
By changing the number of stacks of the casing 5, the height of the entire control center can be kept low, and each unit 16 in the casing 5 can be easily maintained and operated. Since each unit 16 in the body 5 is suspended from the rails 20a and 20b of the unit room 13 via its roller 21, it is easy to carry out personnel operations for the units 16, which has the effect of improving workability during maintenance. There is.

In addition, a cable room 1 is provided below the unit room 13 in the housing 5.
4, the cables 22 of each unit 16 housed in the unit chamber 13 are accommodated and placed in the wiring terminal chamber 15.
The interior of the casing 5 can be easily organized and the wiring work can be reduced.

In the above embodiment, a single-sided type control center has been described, but it can also be implemented in a so-called double-sided type control center in which unit chambers are formed before and after a busbar room, and the units are housed from the front and back, and the units share a horizontal busbar. In this case, there is no difference in the position of each phase of the horizontal bus bar between the units that are housed from the front and back, making it easier to manufacture and assemble the units.

In this type of control center, if there is no problem with the installation space, the casings 5 can be arranged in the left-right direction to form a side-by-side board.

As described above, according to the control center of this invention, there is a horizontal busbar chamber in which horizontal busbars of three phases in the left and right directions are arranged in the vertical direction, and a plurality of horizontal busbars that can freely move toward and away from the horizontal busbar. A unit room in which units are stored side by side in the left and right direction, and a wiring room located below the unit room to accommodate cables connected to each unit are formed, and the top surface of the storage position of each unit in the unit room is formed. In addition to providing front and rear rails on each unit, and supporting rollers that move on the rails at the top of each unit, the overall height can be kept low by suspending each unit so that it can be freely pulled back and forth. In addition to making it possible to use a space with limited vertical direction, maintenance and operation of each unit can be greatly simplified.Moreover, each unit can be suspended so that it can be freely pulled out front and rear. Therefore, the operation of manning the unit becomes smooth, which is extremely useful for maintenance work and the like.

Furthermore, a wiring room is formed below the unit room, and the cables stored side by side in the unit room can be accommodated in this room, which not only allows for good wiring and simple organization within the housing, but also enables horizontal It is easier to apply double-sided control centers that share the same busbar, especially in this case.
There is no difference in the position of each phase of the horizontal bus bar between the front and rear units, making it easy to manufacture and assemble the units.

[Brief explanation of the drawing]

Fig. 1 is a front view of a conventional control center, Fig. 2 and the following drawings show an embodiment of the control center of this invention, Fig. 2a is a front view, the same figure is a side view, and Fig. 3 is a FIG. 4 is a partially exploded perspective view of the unit, and FIG. 5 is a sectional view of the unit. 5... Housing, 10a, 10b, 10c...
...Horizontal busbar room, 16...unit.

Claims (1)

[Scope of utility model registration request] A horizontal busbar room in which three-phase horizontal busbars in the left and right directions are arranged vertically in the housing, and a unit room in which a plurality of units that can freely approach and separate from the horizontal busbars are housed in rows in the left and right direction. and a wiring room located below the unit room and accommodating cables connected to each of the units, and a front and back rail is provided on the top surface of the storage position of each unit in the unit room. . A control center in which rollers that move on the rails are supported on the upper part of each unit, and each unit is suspended so as to be freely drawn forward and backward.