JPH1080017A - Switchboard - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily install a plurality of control centers in a line to constitute a group. SOLUTION: Fitting parts 7a, 7b of a side plate 7 provided on the outside surface of a casing 2 of a control center are slidably fitted to installation bases 3, 4, and the casing 2 is slid for positioning. The fitting parts 7a, 7b are tightened up to projected pieces 3a, 4d of the installation bases 3, 4 by screwing bolts 9 tight to the side plate 7.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a switchboard composed of a plurality of switches arranged side by side, and more particularly to a switchboard which can be easily installed.

[0002]

2. Description of the Related Art Switchboards, for example, control centers, which are a type of closed switchboards, are used for centralized control of general industrial auxiliary equipment for the purpose of opening and closing and protecting loads such as low-voltage motors and resistive loads. More specifically, the configuration is such that unit devices are stored in multiple stages at the front side of the panel body. Here, the unit device is one in which a main circuit component such as a circuit breaker or an electromagnetic contactor, an overcurrent relay, or the like is used as a unit circuit and arranged on a common frame.

When a plurality of such control centers are arranged in a group, each control center is placed on a pair of front and rear installation bases installed on the floor surface, and is fixed to the installation base with a large number of bolts. I have.

[0004]

Conventionally, when a plurality of control centers are arranged in a group on an installation base,
To fix the box, which is the main body of the control center, to the installation base, the holes formed in the bottom of the box must be aligned with the holes formed in the installation base, and bolts must be passed through those holes and tightened to the nuts. There was a problem that the work of positioning the control center with respect to the base was troublesome.

Further, when connecting a plurality of control centers in a group, the side surfaces of adjacent control centers are connected by tightening with a plurality of bolts. The workability was poor.

There are a plurality of locations for fixing the bottom portion of the box body to the installation base with the bolts as described above, and a plurality of locations for connecting the bolts of the box body of the adjacent control center on the front side and the back side. In the configuration where the box is fixed to the wall, the back of the box is in contact with the wall,
The front and back sides of the box cannot be opened and closed on both sides. Instead, only the front side is opened and closed by a door.

In this case, the bolt on the back side cannot be tightened by inserting a hand into the box body from the back side, so that the work must be performed by inserting a hand from the front side. Bolts are far away from the front, making it difficult to insert your hands. If the structure is such that the hand can be easily inserted from the front side to the back side, there arises a problem that the internal structure of the box becomes complicated.

The present invention has been made in view of the above circumstances, and its object is to simplify the operation for fixing to an installation base and the operation for connecting a plurality of units to each other while having a simple structure. To provide a switchboard that can be used.

[0009]

SUMMARY OF THE INVENTION The present invention relates to a switchboard composed of a plurality of groups arranged side by side, provided at a lower portion of a panel body,
A fitting portion slidably fitted to the installation base, and attachment portions provided on both left and right sides of a lower portion of the panel body and fixed to the installation base. The board body can be arranged at a desired position by sliding the board body on the installation base, and can also be fixed to the installation base by mounting portions provided on both sides of the board body.

In this case, in order to easily connect a plurality of switchboards even at the upper part,
A fitting portion for slidably fitting the connecting member to the upper portion of the panel body can be provided, and mounting portions for fixing the connecting member on both sides of the upper portion of the panel body can be provided. The fitting portion can be provided on only one of the front portion and the rear portion of the panel body, and the connecting member can be provided with a wall fixing portion fixed to a wall.

[0011] The present invention also provides a distribution board composed of a plurality of juxtaposed groups, provided at a lower portion of the panel body and slidably fitted to an installation base, provided at a lower portion of the panel body, A wheel that rolls on the installation base and can stop rolling by a wheel stopper formed on the installation base. According to this configuration, it is possible to easily move and position the board body.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a first embodiment in which the present invention is applied to a closed switchboard, for example, a control center, will be described with reference to FIGS.
This will be described with reference to FIG. FIG. 4 shows, for example, a state in which three control centers 1 are arranged side by side to form a group. A pair of front and rear installation bases 3 and 4 for fixing a box body 2 as a panel body of the control center 1 are installed on a floor surface GL. ing.

The installation bases 3 and 4 are shown in FIGS.
As shown in the figure, the upright pieces 3a, 3b and 4 are configured to have a U-shaped cross section that opens upward,
Horizontal protruding pieces 3c, 3d and 4c, 4d as fitted parts protruding outward are integrally provided at upper end portions of a, 4b.

On the other hand, as shown in FIGS. 1 and 3, reinforcing frames 5 and 6 are fixed to both front and rear lower portions of the box 2 of the control center 1. As shown in FIGS. A substantially U-shaped fitting portion 5a is integrally formed at the lower end of the front portion of the front reinforcing frame 5 so as to form a groove-like portion that opens rearward. At the rear lower end, a substantially U-shaped fitting portion 6a is integrally formed so as to protrude so as to form a groove-like portion that opens forward. Of these, the fitting portion 5 of the front reinforcing frame 5
a is slidably fitted to the front protruding piece 3c of the front installation base 3 while enclosing the front protruding piece 3c, and the fitting portion 6a of the rear reinforcing frame 6 is fitted to the rear protruding piece 4d of the rear installation base 4. The rear projection 4d is slidably fitted with the rear projection 4d included therein.

As shown in FIG. 2 and FIG. 3, on the left and right sides of the lower portion of the box 2 of the control center 1, side portions as fixing fixture mounting members protrude from the left and right side surfaces of the box 2. The plate 7 is fixed. The side plate 7 is set to be substantially as long as the length of the box body 2 in the front-rear direction, and has a substantially U-shape on both front and rear sides thereof so that groove-shaped portions that open rearward and forward are formed inside. The mounting portions 7a and 7b also serve as fitting portions.

The mounting portions 7a and 7b are slidably fitted to the protruding pieces 3c and 4d in a state of including the front protruding piece 3c of the front installation base 3 and the rear protruding piece 4d of the rear installation base 4, respectively. Has become. And, on both front and rear sides of the side plate 7, both front and rear upright pieces 3 of both installation bases 3 and 4 are provided.
Screw holes 8, 8 are formed so as to correspond to positions between a, 3b and 4a, 4b. The fitting portions 5a, 6a of the reinforcing frames 5, 6 are loosely fitted to the protruding pieces 3c, 4d with a gap, and the mounting portions 7a, 7b of the side plate 7 are densely fitted to the protruding pieces 3c, 4d. Dimensions are set to fit.

In the above configuration, the control center 1
In order to install and fix on the installation bases 3 and 4, first, the mounting portions 7 a and 7 b of the side plate 7 and the fitting portions 5 a and 6 a of the reinforcing frames 5 and 6 are connected to the front projection 3 c of the front installation base 3 and the rear. The box 2 is fitted to the rear projection 4 d of the installation base 4.
Are mounted on the front and rear installation bases 3 and 4. Then, the box 2 is slid laterally on the installation bases 3 and 4 and stopped at a desired position.

Thereafter, fixing members, for example, bolts 9, 9 as screw members are screwed into the front and rear screw holes 8, 8 of the right and left side plates 7, and the ends thereof are attached to the bottom pieces 3 of the installation bases 3, 4.
e, 4e, and further tighten the bolts 9, 9 in this state. Then, the mounting portions 7a, 7 of the side plate 7
The lower piece b is pressed and fixed to the projecting pieces 3c, 4d of the installation bases 3, 4, whereby the box 2 is fixed at a desired position on the installation base 3.

In this manner, the box 2 is mounted on the installation bases 3, 4
By performing the operation of sliding the upper part and fixing it at a desired position with respect to the three control centers 1, the three control centers 1 can be arranged side by side to form a group as shown in FIG. At this time, the positioning of the three control centers 1 is performed by bringing the side plates 10 into contact with each other.

As described above, according to the present embodiment, since the box 2 can be slid on the installation bases 3 and 4, the control center 1 can be easily brought to a desired installation position by the slide. Adjustment of the installation position can be easily performed by slide. Further, the box 2 can be fixed to the installation bases 3 and 4 by screwing a bolt 9 into the screw hole 8 of the side plate 7 provided outside the box 2 and tightening the bolt. The work becomes easier as compared with the configuration in which the hand is inserted into the inside 2 and the bolt is tightened and fixed.

FIGS. 5 to 7 show a second embodiment of the present invention. The difference from the first embodiment is that three control centers 1 can be connected to each other also at the upper part. . That is, in FIG. 5 to FIG. 7, the same parts as those in FIG. 1 to FIG. 4 are denoted by the same reference numerals, and the connection member 10 for connecting the boxes 2 of the three control centers 1 to each other Projecting pieces 10c, 10d projecting forward and backward as fitting parts are integrally formed at the lower ends of the hanging pieces 10a, 10b facing each other. Two such connecting members 10 are prepared.

On the other hand, on the front and rear sides of the upper portion of the box 2, substantially U-shaped reinforcing frames 11, 12 which are open upward are provided. Both upright pieces 1 at the front and rear of the upper reinforcing frames 11 and 12
At the upper end portions of 1a, 11b and 12a, 12b, substantially U-shaped fitting portions 11c, 11d, and 12 which also serve as mounting portions and face each other such that a groove portion is formed inside.
c and 12d are integrally protruded. These fitting portions 11
Projecting pieces 10c and 10d of the two connecting members 10 are slidably fitted to c and 11d and 12c and 12d.

A side plate 13 as a fixture attaching member is attached to the upper left and right sides of the box 2 so as to protrude from the left and right sides of the box 2. Is a substantially U-shaped fitting portion 13.
a, 13b are formed, and the reinforcing frames 11, 12 are formed.
Screw holes 14, 14 are formed at positions corresponding to between the front and rear upright pieces 11a, 11b and 12a, 12b.

In order to connect the boxes 2 of the three control centers 1 with the connecting members 10, the boxes 2 are fixed on the installation bases 3 and 4, and then the projecting pieces 10 c of the two connecting members 10 are connected. , 10d to the box 2 of each control center 1.
Of the upper front reinforcing frame 11 and the fitting portions 12c and 12d of the upper rear reinforcing frame 12 by sliding. Of course, at this time, the front connecting member 10
The front protruding piece 10c of the upper side plate 13 is
3a, the rear connecting member 1
The rear projecting piece 10d is sequentially fitted to the rear fitting portion 13b of the upper side plate 13 by sliding.

Thereafter, fixing members, for example, bolts 15 and 15 as screw members are screwed into the front and rear screw holes 14 and 14 of the upper side plate 13 and the ends thereof are connected to the connecting members 10 and 1.
The bottom pieces 10c, 10c are brought into contact with each other, and the bolts 15, 15 are further tightened in this state. As a result, the protruding pieces 10c, 10d of the connecting members 10, 10 on the front and rear sides are connected to the fitting portions 11c, 11d, 12 of the upper reinforcing frames 11, 12, respectively.
c, 12d, so that the boxes 2 of the three control centers 1 are connected to each other by the two connecting members 10. With this configuration,
The boxes 2 of the plurality of control centers 1 can be connected to each other even at the upper part thereof and can be firmly integrated without inserting a hand into the box 2.

FIGS. 8 and 9 show a third embodiment of the present invention, which is based on the configuration of the second embodiment, and which is attached to the rear connecting member 10 in an L-shape as a wall fixing portion. Hardware 1
6 are fixed by welding or the like, and the mounting bracket 16 is fixed to the wall W with screws 17.

In such a case, the control center 1 is of a front maintenance type when its rear surface is in contact with the wall W, but as described in the first and second embodiments,
Fixing of Box 2 to Installation Bases 3 and 4 and Connecting Member 10
Can be fixed to the box 2 without inserting a hand into the box 2, so that the operation can be easily performed without complicating the internal structure of the box 2.

FIGS. 10 and 11 show a fourth embodiment of the present invention. The same parts as those in FIGS. 5 to 7 showing the second embodiment are denoted by the same reference numerals and only different parts will be described. First, in this embodiment, unlike the front-side installation base 3 of the second embodiment, the front-side installation base 18 is formed to have a U-shaped cross section that opens downward and is fixed to the floor surface GL. In addition, holes 19 are formed at a plurality of predetermined positions of the upper piece 18a of the installation base 18 on the front side thereof, and
A nut 20 is fixed to the lower side of 9 by welding or the like in advance.

On the other hand, in the box 2, the lower front reinforcing frame 5 of the box 2 does not have a structure to be fitted to the front installation base 18, but can simply slide on the upper piece 18a of the front installation base 18. The fixing to the installation base 18 is performed by putting a hand in the box body 2 as in the prior art and inserting the bolt 22 into the hole 21 formed in the lower front reinforcing frame 5.
And screwing the bolt 22 to the nut 20 of the installation base 18. Also, 3
A connecting member 10 for connecting the boxes 2 of the control centers 1 to each other is provided only on the rear side.

A short lower side plate 23 as a fixture mounting member protruding from both side surfaces of the box 2 is attached to the left and right sides of the lower portion on the rear side of the box 2. At the front and rear sides of the lower side plate 23, mounting portions 23a and 23b, which also serve as fitting portions, which are slidably fitted to the front and rear projecting pieces 4c and 4d of the rear installation base 4, are integrally provided. A screw hole 24 is formed between the mounting portions 23a and 23b.

A short upper side plate 25 as a fixture mounting member protruding from both side surfaces of the box 2 is attached to the left and right sides of the rear upper portion of the box 2. On both front and rear sides of the upper side plate 25, fitting portions 25a and 25b, which also serve as mounting portions, into which the front and rear protruding pieces 10c and 10d of the connecting member 10 are slidably fitted, are integrally protruded. A screw hole 26 is formed between the fitting portions 25a and 25b.

In order to fix such a box 2 to the installation bases 18 and 4, the mounting portion 23 of the lower side plate 23 is used.
The lower front and rear reinforcing frames 5 and 6 are slidably mounted on the front and rear mounting bases 18 and 4 so that the a and 23b are fitted to the projecting pieces 4c and 4d of the rear mounting base 4, respectively. Slide to desired position. Then, the hole 21 of the lower front reinforcing frame 5 is aligned with the hole 19 of the front installation base 18, and the bolt 22 is passed through the holes 21 and 19 in the operation inside the box body 2 so that the nut 2 is
0, the lower front reinforcing frame 5 is fixed to the front installation base 18, and a fixing tool, for example, a bolt 27 as a screw member is screwed into the screw hole 24 of the lower side plate 23. 23a, 23b are fastened and fixed to the protruding pieces 4c, 4d of the rear installation base 4.

After fixing the boxes 2 of the three control centers 1 to the installation bases 18 and 4 in this manner, the connecting members 1 are fitted to the fitting portions 25a and 25b of the upper side plate 25.
The two protruding pieces 10c and 10d are inserted, and the bolt 15 is screwed into the screw hole 26. Thus, the box members 2 of the three control centers 1 are mutually connected by the connecting member 10.

According to the present embodiment configured as described above, the mounting portions 23a and 23b of the lower side plate 23 are slidably fitted to the protruding pieces 4c and 4d of the rear installation base 4, so that the box 2 Can slide without coming off the installation bases 18 and 4. For this reason, the hole 21 of the lower front reinforcement frame 5
When the box 2 is aligned with the hole 19 of the front installation base 18, it is easy to slide the box 2 left and right.

The fixing work of the box body 2 to the installation base 3 on the front side is the same as the conventional one, that is, a hand is inserted into the box body 2 and the lower front reinforcing frame 5 is bolted to the front installation base 18.
The operation of fixing the rear side of the box 2 to the rear installation base 4 can be performed outside the box 2. The fixing operation can be easily performed.

FIGS. 12 and 13 show a fifth embodiment of the present invention. This embodiment differs from the first embodiment in that the lower side plate 10 of the box body 2 is omitted, and a plurality of wheels 28 are attached to the reinforcing frames 5 and 6 on both front and rear lower sides instead. There. 12 and 13
In the figure, the reinforcing frame 6 on the lower rear side is not shown.

On the other hand, of the front and rear projecting pieces 29c and 29d provided at the upper ends of the upright pieces 29a and 29b, the front and rear mounting bases 29 (only the front one is shown) are provided.
9, the rear projecting piece 29d, the rear installation base 29
In this case, the front projection 29c is lower than the other projection to serve as a rolling surface of the wheel 28. Holes 30 as wheel stoppers into which the wheels 28 fit are formed at a plurality of predetermined positions of the protruding piece 3d on the rolling surface side.

In this configuration, in order to install the box 2 on the front and rear installation bases 29, the fitting portion 5 a of the front reinforcing frame 5 and the fitting portion 6 a of the rear reinforcing frame 6 are respectively positioned in front of the front installation base 29. The front and rear wheels 28 are attached to the front mounting base 29 so as to fit the protruding pieces 29c and the rear protruding pieces 29d of the rear mounting base 29.
Is placed on the rear projecting piece 29d, the front projecting piece 29c of the rear installation base 29, and the box 2 is moved. At this time, since the wheels 28 roll, the box 2 can be easily moved.

When the box body 2 reaches a predetermined position, the wheels 28 fall into the holes 30 so that the wheels 28 cannot roll, and the front reinforcing frame 5 is attached to the front protruding piece 2 of the front installation base 29.
9c, the rear reinforcing frame 6 is placed on the rear protruding piece 29d of the rear installation base 29, whereby the box body 2 is fixed at a predetermined position.
In the case of such a configuration, the box 1 can be fixed to the installation base 29 without using bolts or the like.

The present invention is not limited to the embodiment described above and shown in the drawings, and the following modifications or extensions are possible. In each of the first to fourth embodiments, the fitting portions 5a and 6a of the lower front and rear reinforcing frames 5 and 6 may not be provided. The reason is that the mounting portions 7a of the side plates 7, 23,
This is because 7b, 23a and 23b have a function of holding the box 2 so as not to come off the installation bases 3 and 4. FIG.
0, in the fourth embodiment shown in FIG. 11, when no wall is present on the back surface of the box 2, the fixing by the bolt 22 may be adopted on the rear side.

[0041]

As described above, according to the present invention, the following effects can be obtained. According to the first aspect of the present invention, the panel main body can be easily moved to a desired position on the installation base by sliding, and the panel main body can be fixed to the installation base while having a simple configuration. It can be easily performed by the work outside.

According to the second aspect of the present invention, the plurality of board bodies can be connected to each other also at the upper portion of the board body by the connecting member, and the integration of the plurality of board bodies becomes stronger. According to the third aspect of the present invention, since the fitting portion is provided only on one of the front and rear sides of the board body, the structure is further simplified.

According to the fourth aspect of the present invention, since the connecting member for connecting the upper portions of the panel main body to each other can be fixed to the wall, it is possible to eliminate the danger of the main body falling down due to an earthquake or the like. According to the fifth aspect of the present invention, since the panel body has wheels, it is possible to easily perform a moving operation on the installation base, and to position the panel body by wheel stoppers.

[Brief description of the drawings]

FIG. 1 is a sectional view of a main part showing a first embodiment of the present invention.

FIG. 2 is a side view of a main part.

FIG. 3 is a perspective view of a main part.

FIG. 4 is a front view of a group of control centers.

FIG. 5 is a view corresponding to FIG. 4, showing a second embodiment of the present invention;

FIG. 6 is a diagram corresponding to FIG. 1;

FIG. 7 is a diagram corresponding to FIG. 2;

FIG. 8 is a view corresponding to FIG. 1, showing a third embodiment of the present invention.

FIG. 9 is a diagram corresponding to FIG. 2;

FIG. 10 is a view corresponding to FIG. 1, showing a fourth embodiment of the present invention;

FIG. 11 is a diagram corresponding to FIG. 2;

FIG. 12 is a side view showing a fifth embodiment of the present invention in a state where a box body is moved.

FIG. 13 is a side view showing a state where the box body is positioned.

[Explanation of symbols]

In the figure, 1 is a control center (distribution panel), 2 is a box body (panel body), 3, 4 is an installation base, 5, 6 is a reinforcing frame, 5
Reference numerals a and 6a denote fitting portions, 7 denotes a side plate, 7a and 7b denote mounting portions (fitting portions), 10 denotes a connecting member, 11 and 12 denote reinforcing frames, and 11c, 11d, 12c and 12d denote mounting portions (fitting portions). 13), side plates, 13a and 13b are fitting portions, 16 is a mounting bracket (wall mounting portion), 18 is an installation base,
23 is a side plate, 23a and 23b are mounting portions (fitting portions), 25 is a side plate, 25a and 25b are fitting portions, 28 is a wheel, and 30 is a hole (wheel stopper).

Claims (5)

[Claims] 1. A distribution board composed of a plurality of side-by-side groups, comprising: a fitting portion provided at a lower portion of a board body and slidably fitted to an installation base; A switchboard comprising: a mounting portion fixed to an installation base. 2. A method according to claim 1, wherein a fitting portion is provided at an upper portion of the panel body so that the connecting member is slidably fitted, and mounting portions for fixing the connecting member are provided on both sides of the upper portion of the panel body. Item 1. The switchboard according to item 1. 3. The switchboard according to claim 1, wherein the fitting portion is provided at one of a front portion and a rear portion of the panel body. 4. The switchboard according to claim 2, wherein the connecting member includes a wall fixing portion fixed to the wall. 5. A power distribution panel comprising a plurality of power distribution panels arranged in a group, wherein: a fitting portion provided at a lower portion of the panel body and slidably fitted to an installation base; And a wheel which can be stopped by a wheel stopper formed on the installation base.