JPS60144126A - Terminal base of rotary electric machine with control board - Google Patents

Abstract

PURPOSE:To switch the connection of the leads of a rotary electric machine with the control board terminal of an inverter without error by disposing a terminal for connecting an external power source, a control board and the machine on the terminal base of the machine. CONSTITUTION:The connection of an input terminal X1 and an output terminal U1 remains as they are, bolts of input terminals Y1, Z1 and output terminals V1, W1 are loosened, and a crossing connecting strip 12b and a crossing connecting strip 12c with a projection are removed from the terminals V1, W1. The terminals Y1 and W1 are connected by the strip 12b, and the terminals Z1, V1 are connected by the strip 12c. Since the connection is switched with the strips 12b, 12c, the switch of the connection can be performed without error in a short time.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a terminal block for a rotating electric machine attached with a control panel such as an inverter.

[Technical background of the invention and its problems]

Conventionally, the inverter control panel (hereinafter abbreviated as the panel) and rotation 1! Each rock was placed and used separately. However, with the recent development of semiconductor devices, the size of boards has rapidly progressed. For this purpose, as shown in FIG. 1, a panel 1 is integrally arranged on the side opposite to the load of the rotating electrical machine 2, and an electric fan 7 is disposed on the side of the panel 1 opposite to the rotating electrical machine 2. In such a case, a connection wire 4 from a power supply (not shown) to the panel 1 is required to the terminal block 1a of the panel 1, and a connection wire 3 is required from the terminal block 1a of the panel 1 to the terminal block 2a of the rotating electric machine 2. .

The terminals of the two terminal blocks 1a and 2a are arranged as shown in FIG. The arrangement of each terminal on the terminal block 1a is as follows:
From the left: the input terminal hole for connecting the connection line 4 from the power supply, S,
T is arranged, followed by output terminals U and V for connection to the rotating electric machine 2.

W is arranged. Also, is the arrangement of each terminal on the terminal block 2a connected from panel 1 from the left? Input terminal X to connect s3
, Y, and Z are arranged.

To connect the connecting wires 3 and 4 to rotate the rotating electric machine 2 clockwise (positive rotation direction) when viewed from the anti-load side, first, connect the three-phase input from the power supply to the input terminal R. ,S
, T, and the output terminal U of the panel 1 is connected to the input terminal X of the rotating electric machine 2, the output terminal V to the input terminal Y, and the output terminal W to the input terminal Z by connecting wires 3.

Next, when the rotating electrical machine 2 is reversely rotated, the connection wire 3 is connected so that the output terminal V is connected to the input terminal Z, and the output terminal W is connected to the input terminal Y.

As shown in Figure 2, when connecting mixed terminal blocks,
Misconnections are likely to occur if each line is mixed. For example, in the terminal block 1a, the left half should connect the connection line 4 from the power supply, and the right half should connect the connection line 3 from the panel 1 to the rotating electric machine 2, but the right and left halves are swapped. There are many accidents where the board is damaged due to connection. In addition, if the connection wire 4 from the power supply to the panel is rotated from the panel, connect 2 of the connection wires 3 using the method described above.
The phase had to be replaced, which was a tedious task. In addition, noise may be applied to the connection wire 3 between the terminal block 1a and the terminal block 2a9, resulting in malfunction.

[Purpose of the invention]

The present invention improves the above-mentioned drawbacks, and an object thereof is to provide a terminal block for a rotating electrical machine with a control panel that eliminates incorrect wiring between the power source or panel and the rotating electrical machine and facilitates connection.

[Summary of the invention]

The present invention integrates an electric fan and a control panel for controlling the rotating electrical machine into a rotating electrical machine, and provides connection terminals for an external power source, the control panel, and the rotating electrical machine on a terminal block of the rotating electrical machine and the rotating electrical machine, respectively. This is a terminal block for a rotating electric machine with a control panel. As a result, the connection between the rotating electrical machine's Hide line and the inverter's control panel terminal can be changed in a short time without any errors. Also, since connections can be made at one location, there is no need to make mistakes or forget connections, and maintenance is also convenient.

[Embodiments of the invention]

Embodiments of the present invention will be described below with reference to FIGS. 3 to 6. FIG. 3 is a plan view of a terminal block showing an embodiment of the present invention.
+Zl are arranged differently. Output terminal U of panel 1 in the center
, , v, , , wl are arranged in a different manner, and input terminals R,, S, , TI from an external power source are arranged in a lower part, respectively. This terminal block 8 is fixed to the terminal seat of the rotating electrical machine 2, and the opening 1116 of the rotating electrical machine 2 is connected to the input terminals xhy, , z, on the back side of the terminal block 5, and the output terminals Ul, V7, W
t, connect the connecting wires 9 from the panel 1 to 5. Next, the rotary electric machine 20 input terminal X and panel 1. The output terminals U1 are connected by a rectangular connecting band 12a shown in FIG. 5(a) K and having holes at both ends. Also, input terminal Y, and output terminal V
1 are connected by a connecting band 12b for crossing, which is rectangular in shape and has a circular hole at one end and an oval hole 12b1 at the other end, as shown in FIG. 5(b). Furthermore, there is a step between the input terminal Zl and the output terminal W1 in the center as shown in FIG. 5(c)! They are connected by a connecting band 12C for crossing with a protrusion, which has a circular hole on one side and an oval hole 1201 on the other side. Then, connect the external power supply (♀ connection line 13) to the input terminals R, , S, , T.

Next, a connection method for reverse rotation of the rotating electric machine 2 will be described. Leave the connection between input terminal X1 and output terminal UI as is, loosen the bolts of input terminals Y, Zl, and output terminals v1 and Wl, and connect the connecting band for crossing 12b and connecting band for crossing with protrusion 12C to output terminal V. , and remove it from Wl. Then, the input terminal Y1 and the output terminal W1 are connected by a crossing connecting band 12c. Doujinshi terminal R1,.

The connection of the connection line 13 from the external power source to S, , T is not changed.

In this way, the connecting band for crossing 12b and the connecting band for crossing with protrusions 1 are connected.
2c is used to change connections, □L compared to conventional
It is possible to change the connection in a short time without having to change the connection.Also, input terminal X8.
i During wiring work for Electrical Machine 2, connect the connection wire 13 from the external power supply to output terminals U, , Vl, W, and input terminal X1.
, Yl + z, and there are no mistakes. Further, the connection work can be performed using the terminal block 2a of the rotating electric machine 2, and all connections can be made at one place, and maintenance is also convenient without forgetting other connections. Furthermore, since the terminal block 1a and the end wire 3 are used as connection bands, there is no need to worry about noise.

[Other Examples]

In the present invention, the terminals are attached to the terminal block, but as shown in Figure 7, the connection wire to the power source is brought out in place of the connection terminal to the power source, and a lug method (Hide line exit method) is used. Good too.

Further, as shown in FIG. 8, the connecting terminals of the VC power source and the terminals of the board may each be connected by a lug type.

Further, as shown in FIG. 9, if the external power source is not three-phase but single-phase, there may be two power supply terminals or two power supply lines.

In some cases, there are two terminals or connection wires between the panel and the rotating electric machine.

In addition, the terminals or connection lines between the power source, the panel, and the rotating electric machine may be arranged horizontally or vertically, and the order from the top or from the right may be other than that shown in this example.

A prepared connection line may be used instead of the connection band.

〔Effect of the invention〕

As described above, according to the present invention, an external
By providing terminals for connecting the power supply, control panel, and rotating electrical machine, connections between the rotating electrical machine's Hide line and the inverter's control panel terminal can be changed in a short time without errors. In addition, since connections can be made at one location, there is no need to make mistakes in changing other connections, and there is no need to forget connections, and maintenance is also convenient.

[Brief explanation of the drawing]

Fig. 1 is a front view with a partial cross section of a conventional 1l11 board rotary electric machine, Fig. 2 is an explanatory diagram showing the connection of a conventional yIM slave board, and Fig. M3 is a terminal block showing an embodiment of the present invention. , FIG. 4 is a front view with some parts of the control panel equipped with the terminal block of the present invention, FIG. 5 is a perspective view of the connection band, and FIG. 6 is a front view with the terminal block reconnected. , FIGS. 7 to 9 are front views of terminal blocks showing other embodiments of the present invention. 1...Control panel, 2...Rotation'dt 43, l a
, 2a...terminal block, R, 几l, S, S,, T, T,...input terminal, U,
Ul, V , v, , 'W, wl □"output' Mm child,
X, Xi, Y, Yl, Z, Zt "in" jE terminal. Figure 1 Figure 3 Figure 5 Figure 6 Figure 7 Figure 8

Claims (1)

[Claims] An electric fan for the rotating electrical machine and a control for controlling the rotating electrical machine.
1. A terminal block for a rotating electrical machine with a control panel, characterized in that the terminal block of the rotating electrical machine is provided with terminals for connecting an external power source, the control panel, and the rotating electrical machine, respectively.