JPS5936849Y2 - Temporary wiring equipment for terminal blocks - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a temporary wiring device for terminal blocks that is used when temporarily wiring terminal blocks attached to various switchboards, control boards, etc.

Terminal blocks are installed on various power distribution boards and control boards, and are used to organize complex internal wiring and as terminals for connecting external wiring.

Generally, in this structure, as shown in the plan view of FIG. 1, a plurality of sets of input-side connection parts 2 and output-side connection parts 3 are embedded in a resin molded part 1 having good insulation.

Wiring connections to the connecting parts 2 and 3 are often connected using screws 4.

Since a large number of such terminal blocks, ranging from several to several dozen, are attached to a power distribution board or control panel, the number of connection parts is extremely large.

External wiring is connected to this terminal block from the outside to the connection part on the input side for input, and the connection part on the output side is connected to the internal wiring of the power distribution board or control board.

Therefore, when connecting external wiring to the internal wiring of a switchboard or control panel, it is necessary to connect the external wiring to the input side connection part of the terminal block one after another.

As mentioned above, this connection method is often a screw tightening method, in which the screw is loosened, the wire end of the external wiring is entwined with the screw, and the previously loosened screw is tightened.

Therefore, a lot of work time was required.

Although this work is unavoidable in the case of permanent wiring such as installation, it must be said that it is a completely wasteful work if temporary wiring is sufficient, such as testing and adjusting a switchboard or control panel.

This idea was made in order to streamline the connection work to the terminal block during temporary wiring as described above, and instead of directly connecting external wiring to the terminal block, the temporary wiring device for the terminal block is used as an auxiliary terminal. This is intended to greatly reduce unnecessary connection operations during temporary wiring.

According to this invention, the above-mentioned temporary wiring device for a terminal block is provided with a through hole in the insulating plate that covers the surface side of the terminal block at a position corresponding to the connection part of the terminal block, and this through hole has one end. A connection frame having a wiring connection terminal at one end and a contact piece capable of contacting the connection part of the terminal block at the other end is inserted,
When the insulating plate is fixed to the surface side of the terminal block by a fixing metal fitting, the contact piece is structured so that it always contacts the connecting part of the terminal block with a constant pressure due to the spring action of a compression spring. Can be provided.

An embodiment of this invention will be described below with reference to FIGS. 2 and 3.

Fig. 2 is a plan view of a temporary wiring device for a terminal block which is an embodiment of this invention, and Fig. 3 shows the temporary wiring device for a terminal block cut along the X-Y line in Fig. 2 and the temporary wiring device attached to it. FIG.

In this temporary wiring device for a terminal block, an insulating plate 5 that can cover the front surface of the terminal block can be fixed to the front surface of the terminal block using a fixing fitting 6 that fits into the groove 1a of the resin molded part 1 of the terminal block.

This attachment/detachment is carried out by moving the fixture 6 in and out of the groove 1a by adjusting the fixture set screw 7 that tightens the fixture 6.

This insulating plate 5 is provided with through holes 5a at positions corresponding to the connection parts 2 and 3 of the terminal block.

In this figure, a total of six locations are arranged in a staggered manner, three locations corresponding to the connection portion 2 on the input side and three locations corresponding to the connection portion 3 on the output side.

A connection rod 8 is inserted into each of the through holes 5a, and a contact piece 9 is provided at one end (terminal block side) of the connection rod 8, and a wiring connection is provided at the other end (the side far from the terminal block). A terminal 10 for use is provided.

The wiring connection terminal 10 is of a one-touch insertion type, and 10a indicates a wiring connection hole.

Further, a compression spring 11 is provided between the insulating plate 5 and the contact piece 9.
is interposed so that when the insulating plate 5 is fixed to the terminal block by the spring pressure, the contact piece 9 is always brought into contact with the connecting portion 2° 3 of the terminal block and the screw 4 with a constant pressure.

The method of using this devised temporary wiring device for terminal blocks is to place an insulating plate 5 on the surface of a terminal block that needs to be connected to a power distribution board, a control panel, etc., and securely fix it to the terminal block 1 with a fixing fitting 6.

At that time, each contact piece 9 comes into contact with each of the connection parts 2 or 3 on either the input side or the output side of the terminal block, so
The connection is completed by inserting the necessary wires into each of the wire connection holes 10a of each wire connection terminal 10.

As mentioned above, in this invention, a terminal block temporary wiring device with a one-touch insertion type wiring connection terminal is used as an auxiliary terminal for connection, so it can be used for temporary wiring to terminal blocks such as switchboards and control boards. This can greatly reduce work time.

[Brief explanation of the drawing]

Fig. 1 is a plan view of a general terminal block, Fig. 2 is a plan view of a temporary wiring device for a terminal block according to an embodiment of this invention, and Fig. 3 is a plan view taken along the X-Y line in Fig. 2. It is a combined cross-sectional view of the temporary wiring device for terminal blocks and the terminal block attached to this. 2.3...Terminal block connection part, 5...
Insulating plate, 5a...through hole, 8...fixing bracket, 8...connecting rod, 9...contact piece,
10... Terminal for wiring connection, 11...
・Compression spring.

Claims (1)

[Scope of utility model registration request] A through hole is provided in the insulating plate that covers the front side of the terminal block at a position corresponding to the connection part of the terminal block, and this through hole has a terminal for wiring connection at one end and a terminal for connecting the terminal block at the other end. When a connecting frame having a contact piece that can come into contact with the terminal block is inserted and the insulating plate is fixed to the front surface side of the terminal block by a fixing metal fitting, the contact piece is always attached to the terminal block by the spring action of the compression spring. A temporary wiring device for a terminal block, characterized by having a structure that allows it to contact the connection part with a constant pressure.