JP2538666B2 - Mounting structure of power distribution board for switchboard - Google Patents

Description

DETAILED DESCRIPTION [Overview] A space-saving mounting structure in a power distribution board for supplying electric power to each device of a switchboard, which has a small installation space and can immediately detect a failure point in the system. In order to provide a mounting structure for a power distribution board that is easy to repair and replace, a power distribution board for distributing power to an exchange system in which a plurality of frames mounted with units are arranged in a row to form a row. That is, prepare a panel on which a plurality of protectors corresponding to each of the units mounted on each frame are attached as a group, and arrange the panels for each frame on a common frame in an orderly manner. The structure is inserted in the space at the end of the row.

[Industrial applications]

The present invention relates to a power distribution board for supplying electric power to each device of an exchange, and more particularly to a space-saving mounting structure of the power distribution board.

[Conventional technology]

A digital exchange is equipped with many units that make up the system in a standard-sized structure called a frame, and multiple frames are arranged in a row on the floor of a communication station. Is configured. In order to supply power to the units arranged in this way, a frame dedicated to the power distribution board is provided for one row, and this dedicated frame can cover the capacity of all devices in the row. A power distribution board equipped with a capacity protector is installed to introduce an external power source, and this is distributed to each frame, or a protector is installed at the top or bottom of each frame, and the An external power source is directly introduced into each frame to distribute it to the units mounted on the frame.

[Problems to be Solved by the Invention]

In such a conventional method, a considerable space is required for installation of the power distribution board, and when some unit of the system fails, it is connected to a common protector (fuse etc.). It also had the drawback of affecting many other units as well. Further, it takes time and effort to find out where in the system the failure has occurred.

In view of such drawbacks of the conventional method, it is an object of the present invention to provide a mounting structure of a power distribution board which has a small installation space, can immediately find a failure point in the system, and can be easily repaired and replaced. And

[Means for solving the problem]

The purpose is a power distribution board for distributing power to an exchange system in which a plurality of frames mounted with units are arranged in a line and corresponds to each unit mounted on each frame. Prepare a panel to which a plurality of protectors are attached as a group, and arrange the panels for each frame on a common frame corresponding to the arrangement of the frame in the frame, and place the frame at the end of the frame. This is achieved by a power distribution board mounting structure characterized by being inserted into a space.

Hereinafter, the present invention will be described in more detail with reference to the preferred embodiments shown in the drawings.

〔Example〕

The power distribution board 10 of the present invention, as shown in FIG.
For each rack constituting the exchange system, it is installed with respect to the rack 1a arranged at the end thereof. This figure shows an example in which two rows of racks are arranged back to back.

The power distribution board 10 is composed of a vertical flat frame 11 extending in the vertical direction with respect to the floor, and extends in the extending direction X of the rack in a narrow space provided at the end of the frame 1a. It is inserted and fixed so as to be orthogonal. In the figure, the power distribution board on the front side is in a state of being inserted into the frame, and the power distribution board on the other side is in a state before being inserted.

As shown in FIG. 2, the breakers 12 corresponding to the respective units mounted on each frame 1 forming the frame are arranged in order on the pedestal 25 and fixed to the panel 13. A branch plate 14 is attached to the lower part of the panel 13,
A tongue piece 14a at one end is connected to each breaker 12.
The other end of the branch plate 14 is bent so that when the panel 13 is attached to the frame 11, the branch plate 14 is electrically connected and fixed to a bus bar 15 for power supply installed behind the frame 11.

Each breaker 12 is connected to each unit in the frame via a cable (not shown) through a terminal plate 16 provided on the upper part thereof.

The panel 13 configured in this way is prepared for each frame constituting the system, and is arranged in order in the vertical direction on the frame 11 and mounted to form a power distribution board as shown in FIG. To do. In the figure, reference numeral 17 indicates an alarm lamp and 18 indicates a cable duct.

In order to install the power distribution board 10 of the present invention thus configured in a predetermined end space, as shown in an enlarged view in FIGS. 4a and 4b, the upper and lower ends of the frame 1a For the guide rails 19a, 19b provided on both edges to extend in the depth direction of the frame 1a, insert the guide rails 20a, 20b provided corresponding to this on the frame 11 side, as they are. Frame 11
Is pushed all the way into the frame 1a. As shown in FIG. 5a or FIG. 5b, a protrusion 21 is provided on the back surface of the frame 11, and this is engaged with a receiving seat 22 provided at the back of the frame 1a to fix its position. . This locking mechanism has a known structure and will not be described in detail.

For the power distribution board 10 inserted and fixed in this way,
The installation is completed by mounting the cover 23 from the open end of the frame 1a (see FIG. 1). This cover 23 is provided with a window 23a corresponding to each panel 13 in its area, and the breaker can be maintained through this window without removing the cover 23 itself.

〔The invention's effect〕

As described above in detail, according to the present invention, protectors such as breakers corresponding to the units in each frame in the system are arranged on one panel, and a plurality of panels are arranged on the frame. Since the power distribution board is configured and inserted in the depth direction in the frame at the end of the row, it is easy to grasp the correspondence with each unit and it is possible to save a great amount of installation space. .

[Brief description of drawings]

FIG. 1 is a perspective view showing a relationship between a power distribution board of the present invention and a rack, FIG. 2 is a perspective view showing a panel which is a constituent element of the power distribution board of the present invention, and FIG. 3 is a book. The whole perspective view of the power distribution board of the invention, FIGS. 4a and 4b are partially enlarged perspective views of parts A and B of FIG. 1 showing the mechanism for inserting the power distribution board, FIG. 5a and FIG. FIG. 5b is a C of FIG. 1 which also shows the fixing mechanism.
It is a partial expansion perspective view of a part. 1 ... Frame, 2 ... Rack, 10 ... Power distribution board, 11 ... Frame, 12 ... Breaker (protector), 13 ... Panel, 14 ... Branch board, 15 ... Bus bar, 16 ...... Terminal board.

Claims (1)

(57) [Claims] 1. A power distribution board for distributing power to an exchange system in which a plurality of frames (1) having units are arranged in a line to form a frame (2), and each frame (1) Prepare a panel (13) with a plurality of protectors (12) corresponding to each of the units mounted in
The panel (13) for each frame (1) is shared by the common frame (1
1) A power supply characterized by being arranged on the top of the frame (1) in correspondence with the arrangement of the frame (1) and inserting the frame (11) into the space at the end of the frame (2). Distribution board mounting structure.