JPS61180598U - - Google Patents

Description

[Brief explanation of the drawing]

Fig. 1 is a block diagram of a multi-point operating device for a reversible motor according to an embodiment of the present invention, Fig. 2 is a circuit diagram showing the circuit configuration of a control box used in the same device, and Figs. 3 a, b, and c. Figure 3 d is a front view showing the shape of the mounting hole of the control box to the panel, Figure 4 a and b are the same as the control box shown in Figure 1. A front view and a right side view showing the external appearance of the control motor used, Fig. 5 is an exploded perspective view showing the internal structure of the same as above, Fig. 6 is a circuit diagram showing the electric circuit of the above, and Fig. 7 a and b are the same as above. A front view and a right side view showing an example of application to a control damper, Fig. 8 is a circuit diagram showing a conventional control box, and Fig. 9 is a block diagram showing a conventional example of a multi-point operation device using the same control box. It is. 1 is a forward rotation position contact, 2 is a reverse rotation position contact, 3 is a stop position contact, 4 is a common contact, MH is a power supply terminal for forward rotation, ML is a power supply terminal for reverse rotation, MC is a common power supply terminal, M is a reversible motor, SW is a changeover switch.

Claims (1)

[Scope of utility model registration request] A reversible motor is equipped with power terminals for forward rotation and reverse rotation, and a common power terminal;
It includes a plurality of changeover switches that control switching between three states: reverse rotation and stop, and each changeover switch includes:
A forward position contact connected to the forward rotation power terminal of the reversible motor, a reverse rotation position contact connected to the reverse rotation power terminal of the reversible motor, a stop position contact, and these three.
The other side of the power line is connected to the common power terminal of the reversible motor, and the other side of the power line is connected to the common contact of the changeover switch with the highest priority. A multi-point operation device for a reversible motor, characterized in that a stop position contact of the switch is connected to a common contact of a changeover switch having a lower priority.