JPH11187519A - Front maintenance type of board structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the installation space, by enabling the maintenance from one direction for contriving effective use of the floor of an electric place. SOLUTION: This structure is constituted, by charging a front maintenance type of board with articles such as a relay unit 3, a switch, a terminal block, etc. In this case, a variety of articles such as the relay unit 3, the switch, the terminal block, etc., are collected and blocked each, according to the functions, so as to make an article unit, and also these article units 10, 11, etc., are made into such structure that they can be slid and pulled out of the front of the board, thus the maintenance work from one direction of the board front is made possible to dispense with the maintenance space behind the board. Accordingly, this can be installed close to the wall face of an electric place, and the backto-back installation of two boards becomes possible, and the board installation space of the electric space can be halved.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a front-maintenance type panel structure for improving the efficiency of installing a panel such as a switchboard or a control panel installed in an electric substation.

[0002]

2. Description of the Related Art Generally, panels such as a switchboard and a control panel have a box structure, and are installed in parallel at each electric station. These panels have maintenance spaces in two directions, front and back, because articles and the like are mounted at a high density, and have a structure that facilitates maintenance work such as inspection or repair.

FIG. 10 is a perspective view of a conventional switchboard 13 which is installed on a wall 21 of an electric substation via an overhead mounting frame 14 while securing a maintenance space on the rear side. FIG. 11 shows two switchboards. FIG. 13 is a perspective view of another conventional power distribution panel 13 in which the rear side of the power distribution panel 13 is arranged to face the rear side, and the rear sides of both power distribution panels 13 are installed via a mounting frame 14 to provide a maintenance space.

[0004]

As described above, installation of a conventional switchboard, control panel, or the like requires maintenance space from two directions, a front side and a rear side. For example, FIG.
In the conventional installation of the switchboard, a maintenance space is provided by the mounting frame 14 between the wall surface 21 and the switchboard 13, and in the installation of the other conventional switchboard of FIG. A maintenance space is provided by 14 so that maintenance personnel can easily pass through and can perform maintenance work safely.

[0005] The switchboard configuration that requires maintenance space from two directions, front and rear, is mainly based on the arrangement of mounting equipment and supplies. That is, in the conventional switchboard structure, devices such as a relay unit mounted on the switchboard have cables connected to each other on the rear side of the switchboard, and unless the cables are removed, the relay unit is pulled out of the switchboard alone. Therefore, when performing maintenance on the rear side, a maintenance space must be provided on the rear side of the switchboard, and the maintenance space for this has reached 50% of the installation area of the switchboard. However, these maintenance spaces hinder the effective use of the floor in the electric substation, and are not economically favorable.

The present invention (corresponding to claims 1 to 5) provides:
In view of the above situation, the purpose is to provide a front maintenance type panel structure that enables maintenance work from one direction in front of a distribution panel to reduce the installation space in order to effectively utilize the substation floor. It is in.

[0007]

In order to achieve the above object, a first aspect of the present invention is to provide a front maintenance type in which accessories such as a relay unit, a switch and a terminal block are loaded in a front maintenance type panel. In the panel structure, supplies such as the relay unit, the switch, and the terminal block are grouped according to their functions to form blocks, and the unit is slid out to the outside of the panel on the front side of the panel. It is characterized in that maintenance work can be performed from any direction, eliminating the need for maintenance space on the rear side of the panel.

According to a second aspect of the present invention, in the front-maintenance type panel structure according to the first aspect, the relay unit block in functional units is housed in a box, and the box is easily pulled out of the panel. And a detachable drawer auxiliary frame, and a receiving portion capable of loading the drawer auxiliary frame.

According to a third aspect of the present invention, in the front maintenance type board structure according to the first aspect, the storage box body of the relay unit drawn out of the board on the front face of the panel is rotated at a right angle to rotate the relay unit. It is characterized in that a drawer auxiliary frame that allows the rear surface to be visually checked and easily maintained is provided.

According to a fourth aspect of the present invention, in the front maintenance type panel structure according to the first aspect, small articles such as switches and connectors mounted inside the panel and on the rear side are collectively unitized to form an article unit. The article unit can be slid out of the board and can be maintained from one direction on the front of the board.

According to a fifth aspect of the present invention, in the front-maintenance type panel structure according to the first aspect, the inside of the panel and an article mounting panel for mounting inside the panel can be slid out and opened and closed outside the panel on the front side of the panel. And the article mounting panel further comprises:
The present invention is characterized in that maintenance of attached articles and maintenance of the inside of the panel are facilitated, and a space for connecting external cables is enlarged.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram of a closed front maintenance type switchboard according to a first embodiment (corresponding to claims 1, 3 and 4) of the present invention, and FIG. 2 (a) is a view of the switchboard of FIG. FIG. 2B is a perspective view showing a state where a front door is opened, and FIG. 2B is a perspective view showing a state where the subrack shown in FIG. 1A is rotated.

As shown in FIGS. 1 and 2, in this embodiment, a door receiving bracket 9 (see FIG. 6) for mounting the door 2 is mounted on one side of the front of the switchboard 1 in advance. Since the door receiving fitting 9 and the door 2 have a detachable structure, if the door 2 is loaded according to the installation environment, a closed switchboard structure as in this embodiment can be easily obtained. If the door 2 is not loaded, an open switchboard structure (see FIG. 6) is obtained.

In the switchboard 1, a relay unit 3 is provided.
Supplies units 10 and 11 and the like, in which the supplies other than the storage subrack 5 and the relay unit 3 are grouped together, are stored. Reference numeral 4 denotes a mounting panel having a sliding and rotating function.

The subrack 5 housed in the relay unit 3 is
It is mounted on the drawer auxiliary frame 6. As shown in FIG. 4, a rotating plate 15 is provided on the upper part of the drawer auxiliary frame 6. The subrack 5 housed in the relay unit 3 drawn out of the panel can rotate within a range of 90 degrees on the rotating plate 15 of the auxiliary frame 6 for drawing out. This will be described in more detail with reference to FIGS. 3 (a) to 3 (c).

FIG. 3A is a side view showing the positional relationship between the subrack 5 and the turntable 15 loaded in the auxiliary frame 6 when the subrack 5 is pulled out of the board.
FIG. 3B is a side view showing a state in which the turntable 15 is pressed against the bottom of the subrack 5 and floated on the auxiliary frame 6 to rotate the subrack 5 by 90 degrees, and FIG. FIG.

In order for the subrack 5 to move on the auxiliary frame 6, a certain gap is usually provided between the bottom of the subrack 5 and the upper surface of the turntable 15, as shown in FIG. In order to facilitate maintenance work on the back surface of the relay unit 3 loaded in the subrack 5 drawn out of the panel, as shown in FIG. Twist 19 and press the top surface of the turntable 15 against the bottom surface of the subrack 5
Slightly above the upper surface of the. In this state, the relay unit 3
Can be rotated by the turntable 15. Next, the lock handle 20 is twisted at a position where maintenance work is easy, and the subrack 5 is fixed to the auxiliary frame 6. With this rotation, the entire rear surface of the relay unit 3 can be seen and operated, so that the repair work is further facilitated. In addition, the cables 7 of the product units 10 and 11 in which the products other than the relay unit 3 are collectively unitized are provided with extra lengths for connector connection, and the product units 10 and 11 are connected via a slide rail 12 to the switchboard. 1 and fixed. Although the casters 16 are provided in FIG. 3, the casters 16 are not a necessary condition.

As described above, since the article units 10 and 11 can be freely inserted into and removed from the switchboard 1, maintenance and repair can be performed by pulling out the subrack 5 to the front. Also, by removing the connector connection portion of the cable 7, the article units 10, 1
Removal of 1 is also easy.

Therefore, at the time of simple repair of the article units 10 and 11, work can be performed with the equipment units 10 and 11 pulled out of the switchboard, and can be removed from the switchboard as needed to perform work on a table.
After the work of the article units 10 and 11 is completed, the article units 10 and 11 are inserted into the slide rails 12 and pushed and fixed.

As described above, according to the present embodiment, the switchboard structure can be selectively used as an open type or a closed type with the same structure, so that dust proofing, drip proofing, other surges and noise elimination are required. In the environment, this can be dealt with by installing a door to form a closed switchboard structure. Also, the cables 7 connected and interlaced with each other on the back side of the equipment such as the relay unit 3 have a sufficient extra length, are stored in a dedicated subrack 5 collectively for each functional unit, and small articles are also collectively stored. Then, they are housed in the product units 10 and 11 as a unit. In addition, the mounting panel 4 under the rack is provided with a sliding and rotating function, so that each device can be easily pulled out of the switchboard as needed.

This embodiment has such a structure.
Conventionally, the mounting equipment such as the relay unit 3 which has been maintained from the front and rear surfaces of the switchboard can be maintained from one direction on the front side, so that no maintenance space is required on the rear side, and the installation space can be reduced.

Conventionally, the mounting panel 4 on which the switches and test terminals are mounted is mounted on the lower front surface of the switchboard 1, so that it can be opened and closed on the spot. The supplies and wiring became dead spaces, making it very difficult to repair internal terminal blocks and connect external cables.

In this embodiment, as shown in FIG. 5, the under-mounting panel 4 is pulled out of the front panel through the slide rail 12 and further opened, so that all the under-panel mounting articles are outside the panel. Maintenance work is possible, and the work space for connecting cables in the panel can be greatly improved.

FIG. 6 is a block diagram of an open front maintenance type switchboard with a front door removed according to a second embodiment of the present invention (corresponding to claims 1 to 5). FIG. 3B is a perspective view of the state where the storage device loaded in the drawer auxiliary frame is pulled out.

As shown in the drawing, in this embodiment, the switchboard 1
Inside, the subrack 5 stored in the relay unit 3 and the product units 10 and 11 (see FIG. 2) in which the products other than the relay unit 3 are collectively unitized are stored. 4
Is a mounting panel with sliding and rotating functions.

A roller or the like is provided at the bottom of the subrack 5 in which the relay units 3 are collectively stored, so that the subrack 5 is easily slid. FIG. 7A shows a state where the subrack 5 containing the relay unit is drawn out to the front of the panel.
(B) is a diagram in which the auxiliary frame 6 is loaded in the frame receiving portion.

When maintenance work on the rear side of the relay unit 3 becomes necessary, the auxiliary frame 6 is fastened to the nut 17 welded to the frame receiving portion 8 by bolts 18 as shown in FIG. The drawing passage of the subrack 5 is formed. FIG. 7A shows a state in which the auxiliary frame 6 is loaded into the frame receiving portion 8 and integrated. Relay unit 3
Casters 1 for movement are provided on the bottom of the subrack 5 loaded with
6 are attached. If the fixing bolt 18 is removed and the subrack 5 is pulled out to the front of the board, the caster 16 can easily slide on the auxiliary frame 6 and be pulled out of the board. At the time of maintenance or repair work, in order to pull out the subrack 5 from the panel, a separate draw-out auxiliary frame is hooked and loaded on a frame receiving portion 8 provided in advance on the front surface of the switchboard 1 so that the subrack 5 can be maintained. Pull out and secure to the position. After the work is completed, the subrack 5 is pushed into the panel and stored, the drawer auxiliary frame is removed, and the subrack 5 is stored separately.

The relay unit 3 pulled out of the panel
The stored subrack 5 can be rotated within a range of 90 degrees on the rotating plate 15 of the drawer auxiliary frame 6. That is, since the subrack 5 is active on the auxiliary frame 6, a certain gap is normally provided between the bottom of the subrack 5 and the upper surface of the turntable 15, as shown in FIG. Relay unit 3 loaded in subrack 5 drawn out of panel
In order to facilitate the maintenance work on the rear surface of the sub-rack 5, as shown in FIG. 3 (b), the level adjustment bolt 19 loaded in the auxiliary frame 6 is twisted so that the upper surface of the turntable 15 is attached to the lower surface of the subrack 5. The pressing caster 16 is slightly lifted from the upper surface of the auxiliary frame 6. In this state, the subrack 5 loaded with the relay unit 3 can be rotated by the turntable 15. Next, the lock handle 20 is twisted at a position where maintenance work is easy, and the subrack 5 is fixed to the auxiliary frame 6. Further, although not shown, the auxiliary frame 6 is provided with a guide portion (for example, a groove or the like) for guiding the rollers of the subrack 5, a stopper, and the like. It prevents falling off. Further, when the subrack 5 is in the switchboard 1, the subrack 5 may be fixed to the switchboard 1 with screws or the like. As described above, according to the present embodiment, during maintenance and inspection of the relay unit 3, the relay unit 3 can be easily pulled out of the panel, and the work is easy.

FIG. 8 is a perspective view of an application example of the present invention. As shown in FIG.
Can be installed in close contact with Such installation is performed by subunits 5, 11, etc., switches, test terminals, etc., which are unitized by integrating the subrack 5 stored in the relay unit 3, the subrack 5 stored in the switchboard 1, and the supplies other than the relay unit 3. This is because the mounting panel 4 under the frame is provided with a front-maintenance type switchboard configuration in which maintenance or inspection can be performed with the front door of the switchboard opened. This is because the configuration is such that it can be easily drawn out of the switchboard, so that the installation space of the switchboard in the electric substation can be reduced by half as compared with the conventional switchboard installation configuration of FIG.

FIG. 9 is a perspective view of another application example of the present invention. As shown in the figure, this application example has a configuration in which two switchboards 1 are installed back to back. This type of installation is based on a conventional maintenance type switchboard configuration in which maintenance or inspection can be performed with the front door of the switchboard 1 opened, as in FIG. 9 can reduce the installation space of the switchboard at the electric substation by half.

[0031]

As described above, the present invention (Claim 1)
According to claim 5), a front maintenance type panel such as a switchboard or a control panel can be installed in close contact with a wall of an electric substation, and both panels can be installed back to back. This eliminates the need for a maintenance space on the rear side, and halves the space required to install the panel in an electric substation. Further, since the maintenance work is performed in one direction on the front side, the work can be performed while confirming each other even in a two-person work, so that an unexpected accident can be prevented.

[Brief description of the drawings]

FIG. 1 is a perspective view of a closed front maintenance type switchboard according to a first embodiment of the present invention.

2A is a perspective view of the switchboard of FIG. 1 with a front door opened, and FIG. 2B is a perspective view of the switchboard of FIG. 1A with the subrack rotated.

FIG. 3A is a side view showing a positional relationship between the subrack and the turntable when the subrack is pulled out of the board, and FIG. 3B is a side view showing the subrack in FIG. The side view which shows the state which floated on the upper side, The figure (c) which looked at the auxiliary | assistant frame from the bottom.

FIG. 4 is a perspective view of the auxiliary frame of FIG. 2;

FIG. 5 is a view as seen from an AA direction in FIG. 1;

FIGS. 6A and 6B are configuration diagrams of an open front maintenance type switchboard according to a second embodiment of the present invention. FIG. 6A is a perspective view of the switchboard, and FIG. The perspective view in the state where the storage device was pulled out.

FIG. 7A is a side view showing a state in which the subrack is drawn out to the front of the board, and FIG. 7B is a side view in which an auxiliary frame is loaded in a frame receiving portion.

FIG. 8 is a perspective view of an application example of the present invention.

FIG. 9 is a perspective view of another application example of the present invention.

FIG. 10 is a perspective view of a conventional switchboard structure.

FIG. 11 is a perspective view of another conventional switchboard structure.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Distribution board, 2 ... Door, 3 ... Relay unit, 4 ... Mounting panel, 5 ... Subrack, 6 ... Auxiliary frame, 7 ... Cable, 8 ... Frame receiving part, 9 ... Door receiving bracket, 10, 11
... Supplies unit, 12 ... Slide rail, 13 ... Distribution board, 14 ... Support frame, 15 ... Turntable, 1
6 casters, 17 nuts, 18 bolts, 19 level adjustment bolts, 20 lock handles, 21 wall surfaces.

Claims (5)

[Claims] 1. A front maintenance type board structure in which accessories such as a relay unit, a switch, and a terminal block are loaded in a front maintenance type panel. The front unit is characterized in that the units are collectively formed into blocks and the unit units are slid out to the outside of the panel on the front side of the panel, so that maintenance work can be performed from one direction of the front side of the panel, thereby eliminating the need for a rear panel maintenance space. Maintenance type board structure. 2. The front maintenance type panel structure according to claim 1, wherein the relay unit block in functional units is housed in a box, and a detachable drawer for easily pulling the box out of the panel. A front-maintenance board structure comprising a frame and a receiving portion capable of loading the drawer auxiliary frame. 3. The front maintenance type panel structure according to claim 1, wherein the housing of the relay unit drawn out of the panel on the front surface of the panel is rotated at a right angle so that the rear surface of the relay unit can be visually and easily viewed. Front maintenance type panel structure characterized by providing a drawer auxiliary frame that can be maintained. 4. The front-maintenance type panel structure according to claim 1, wherein small articles such as switches and connectors mounted inside and on the rear side of the panel are collectively unitized to form an article unit, and the article unit is disposed outside the panel. Front maintenance type panel structure characterized in that the slide can be pulled out and maintenance is possible from one direction of the front of the panel. 5. The front-maintenance type panel structure according to claim 1, wherein an article mounting panel mounted inside the panel and inside the panel is structured so as to be able to slide out and open outside the panel on the front side of the panel, and further, the article mounting panel. Is a front-maintenance type panel structure characterized in that maintenance of attached articles and maintenance of the inside of the panel are facilitated and a connection work space for external cables is enlarged.