JPH09247809A - Terminal board - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the accommodation ratio in a control apparatus accommodating box body and inrease worlabilirty by making connection terminal rows arranged in a parallel state the two-stage structure of a upper stage and a lower stage, and making the connection terminal row of the upper stage detachable. SOLUTION: A terminal board lower stage part 19 is fixed to the connection end of a terminal board 4, and connects external wires 5. A terminal board upper stage part 18 is fitted in the upper part of the lower stage part 19, and connects the other external wires 5. The upper stage part 18 is fixed up the lower stage part 19 by using screws 22. When the external wires 5 and metal fittings 17 are connected with the upper stage part 18, and then the other external wires 5 and metal fittings 17 are to be connected with the lower stage part 19, a screw driver may not be inserted into a screw 16 of the lower stage part 19, on account of obstruction of the external wires 5 or the metal fittings 17 of the upper stage part 18. In this case, the screws 22 are loosened and the upper stage part 19 is detached, thereby enabling the connection to the lower stage part 19.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a terminal block device used in a switchboard or the like.

[0002]

2. Description of the Related Art A conventional terminal block device is used for a switchboard such as a control device storage box, and is connected to other control device storage boxes and other devices via external electric wires for input / output signals. In the control device storage box, generally, the I / O card main body stored in the I / O card (input / output device) storage box is connected to the external electric wire and the terminal block device.

In some terminal block devices, the connection terminals are arranged in parallel in two rows, but these are fixedly mounted, and one of the connection terminals is connected to an external electric wire. Then, the external shape of the screw such as the terminal mounting portion interferes with the connection of the external electric wire to the other connection terminal.

[0004]

In the terminal block device of the present invention, the connecting terminal rows arranged in parallel in two rows are constituted by two upper and lower stages, and the upper connecting terminal row is removable. By so doing, it is an object of the present invention to improve the storage rate in the control device storage box body and provide a two-stage type terminal block device for external connection with good workability.

[0005]

The terminal block device of the present invention comprises:
Attach the lower part of the terminal block that is attached to the connection end of the terminal block to connect the external wires, the upper part of the terminal block that is fitted on the upper part of the lower part of the terminal block and connect the other external wires, and the inside of the upper part of the terminal block. Connection for connecting the upper contact piece that is pierced and wired, the lower contact piece that is pierced and wired inside the lower part of the terminal block, and the lower contact piece and the I / O card body that collects information It features a bar and.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION Next, an embodiment of the terminal block device of the present invention will be described. FIG. 1 shows a perspective view of a box 2 used as a switchboard or a box for storing control equipment. FIG.
1 is a sectional view taken along the line II-II of FIG.
It is composed of A and a channel base (base plate) 2B, and a duct (wiring space) 6 is arranged around the inside thereof, and a vertical external electric wire 5 is laid in the duct 6.

A storage chassis (framework) 7 is stacked in the central portion of the box body 2, and a space between the upper storage chassis 7 and the lower storage chassis 7 is reinforced by a channel 2C. . The lateral external electric wire 5 is laid in the channel 2C. Further, an I / O card storage box 8 is inserted into the storage chassis 7, a terminal block 4 is attached to the I / O card storage box 8, and the I / O card storage box 8 is stored inside the I / O card storage box 8. The I / O card body 9 is connected to the external electric wire 5 via the terminal block 4.

FIG. 3 is a perspective view of the I / O card storage box 8. The terminal block lower step portion 19 is a component attached to the connection end of the terminal block 4 to connect the external electric wire 5, and the terminal block upper step portion 1
Reference numeral 8 is a component that is fitted in the upper portion of the terminal block lower step portion 19 to connect another external electric wire 5, and the terminal block upper step portion 18 is the screw 2
It is attached to the lower part 19 of the terminal block by 2. Then, the external electric wire 5 is fixed to the terminal block upper step portion 18 and the terminal block lower step portion 19 by screws 15 and 16, respectively.
Note that the metal fitting 17 is also called a jumper or the like, and is a short conducting wire or an interlacing conducting wire used for providing a bypass at a connection or disconnection point between two points or terminals in a circuit.

With the above-mentioned structure, the external electric wire 5 and the metal fitting 17 are connected to the upper part 18 of the terminal block.
When attempting to connect the external electric wire 5 or the metal fitting 17 to the terminal block lower step portion 19, if the external electric wire 5 or the metal fitting 17 of the terminal block upper step portion 18 interferes with the screw 16 of the terminal block lower step portion 19 and a screwdriver is inserted. Even when there is no, each time the terminal block upper part 18
Connection to the terminal block lower step portion 19 is performed by loosening the screw 22 and removing the terminal block upper step portion 18 from the terminal block lower step portion 19 without loosening the screw 15 or removing the metal fitting 17 from the backtracking work. Is possible.

FIG. 4 is a partial sectional view of FIG. 3, in which the upper contact piece 20 is a metal piece that is wired through the inside of the terminal block upper step portion 18 and is drawn out to the connector portion of the terminal block upper step portion 18. Has been. The lower contact piece 21 is a metal piece that is wired through the inside of the lower terminal block portion 19 and is drawn out to the connector receiving portion of the lower terminal block portion 19. Then, the connector portion of the terminal block upper step portion 18 is connected to the terminal block lower step portion 19
When it is inserted into the connector receiving portion, the upper contact piece 20 and the lower contact piece 21 come into contact with each other and are electrically connected to each other.

The connection bar 12 is a metal piece for connecting the lower contact piece 21 and the I / O card main body 9 that collects information. Needless to say, these metal pieces can be replaced with connection conductors. is there. When the lower part 19 of the terminal block is inserted into the I / O card storage box 8, the lower contact piece 21 and the connection bar 12 come into contact and are electrically connected. The I / O card body 9 is attached by an I / O card attachment article 10.

FIG. 5 is a perspective view showing how the terminal block upper step portion 18 is attached to the terminal block lower step portion 19 with the screw 22.

As described above, according to this embodiment, the upper and lower terminal portions of the two-stage terminal block device for external use are detachable when connecting an external electric wire. As a result, it does not depend on the connection order of the upper and lower stages,
In addition, it is possible to perform efficient work without backtracking, improve the storage rate inside the control device storage box, and ensure better workability.

[0014]

According to the present invention, the operational safety of the terminal block device can be improved.

[Brief description of drawings]

FIG. 1 is a perspective view of a box that houses a terminal block device.

FIG. 2 is a sectional view taken along the line II-II in FIG.

FIG. 3 is a perspective view of a terminal block device showing an embodiment of the present invention.

FIG. 4 is a partial sectional view of FIG. 3;

5 is a perspective view of attaching the terminal block upper step portion 18 to the terminal block lower step portion 19. FIG.

[Explanation of symbols]

 2 Box 4 Terminal Block 5 External Wire 6 Duct 7 Storage Chassis 8 I / O Card Storage Box 9 I / O Card Main Body 10 I / O Card Installation Supplies 12 Connection Bar 15 Screws 16 Screws 17 Metal Fittings 18 Terminal Block Upper Stage 19 Terminals Lower stage part 20 Contact piece for upper stage 21 Contact piece for lower stage 22 Screw

Claims (1)

[Claims] 1. A terminal block lower step portion attached to a connection end of a terminal block to connect an external electric wire, and an upper terminal block portion fitted to an upper portion of the terminal block lower step portion to connect another external electric wire.
Gather information between the upper contact piece wired through the upper part of the terminal block, the lower contact piece wired through the lower part of the terminal block, and the lower contact piece. And a connection bar for connecting the I / O card body to the terminal block device.