Motor circuit controlling opening and closing of door or window or curtain

Abstract

The invention discloses a motor circuit controlling opening and closing of a door or a window or a curtain. The motor circuit comprises a direct-current motor and a direct-current power supply, wherein a current direction switching circuit used for changing the current direction to control forward and reverse rotation of the motor is connected between the direct-current power supply and the direct-current motor, the current direction switching circuit comprises a first relay switching circuit and a second relay switching circuit, the first relay switching circuit controls one input end of the direct-current motor to be connected to one of two output ends of the direct-current power supply, the second relay switching circuit is used for controlling the other input end of the direct-current motor to be connected with the other one of the two output ends of the direct-current power supply, the control signal input end of the first relay switching circuit is connected with a switching-on switch K3 and a travel switch SW1, and the control signal input end of the second relay switching circuit is connected with a switching-off switch K4 and a travel switch SW2. According to the scheme, a motor controller used for controlling forward and reverse rotation of the motor is not adopted, programming and the requirement for match of software and hardware are not needed, and the circuit is simple in structure and easy to implement.

Description

[technical field] [0001] The invention mainly relates to a motor circuit for controlling the opening and closing of doors, windows or curtains, and can also be used in motor control circuits for opening / closing other objects to be opened and closed. [Background technique] [0002] At present, there are three main ways of opening / closing existing doors, windows or curtains: [0003] 1. The operating user manually opens / closes the opened and closed body; [0004] 2. Semi-automatic mode: Press the motor power switch button to open / close the opened and closed body by controlling the forward and reverse rotation of the motor. After the button is released, the motor stops rotating; [0005] 3. Adopt the motor control chip control method: press the operation button, the motor controller controls the motor to work, open / close the opened and closed body, and the controller judges whether the opened and closed body is in place by detecting the feedback signal of the feedback circuit,...

AI Technical Summary

Problems solved by technology

[0006] Among them, in the second control method, when the motor speed is slow, it takes a long time for the operator to fully open the opened and closed body, and in the third control method, it is necessary to use a relatively expensive motor control chip, and It is necessary to program the control chip, which requires the coordination of software and hardware in place, which is not easy to implement and the overall cost is high

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