CN105529969B - A kind of circuit of double-direction control aircraft DC motor movement - Google Patents

Abstract

The invention belongs to the technical field of aviation motor control, and relates to a circuit for bidirectionally controlling the movement of a direct current motor on an aircraft combining manual and automatic operations. The steps to solve are as follows: add an automatic control relay to the circuit of conventional manual two-way control motor to realize the function of automatically controlling the motor on or off; at the same time, add a cancel automatic switch to the automatic control circuit to realize manual intervention to cancel the automatic function. The invention can increase the automatic control function for the bidirectional control motor circuit, and at the same time increase the automatic function of manual cancellation, so as to ensure that the motor can work reliably and stably according to the requirements, and has high integration, light weight, convenient implementation and low cost.

Description

A circuit for bi-directionally controlling the movement of aircraft DC motors

technical field

The invention belongs to the technical field of aviation motor control, and relates to a circuit for bidirectionally controlling the motion of an aircraft DC motor.

Background technique

In general aircraft DC motor control circuits, independent manual control and automatic control methods are mostly used. Manually controlling the two-way movement of the motor requires more attention to the motor in a specific environment, which consumes more attention of the pilot. Automatically controlling the two-way movement of the motor can reduce the burden on the pilot. It is possible for a stable and clear motor environment, but for some complex environments and less mature computers on the aircraft, there may be unexpected motor movement and desired motor movement. A case of exercise without exercise. If no additional circuit is added, in some states, the pilot will be deprived of the authority to control the movement of the motor. Therefore need a kind of direct current motor control circuit that combines manual control and automatic control simultaneously automatic control can not deprive pilot's authority on aircraft.

In the patent No. ZL200920171677.6, the device for bidirectional control of DC motors adopts an easy-to-use device for bidirectional control of DC motors, including six layers of two-speed knob switches and two travel switches, which are connected through a combination of lines to realize Bi-directional control of motor movement while achieving stroke limitation. This kind of circuit connection is simple, and it can be used in some industrial fields. However, in the aviation field, this kind of rotary switch is not ergonomic, and it is difficult for pilots to identify the direction of the rotary switch and other functional requirements.

Contents of the invention

The purpose of the present invention is to: propose a kind of circuit of two-way control aircraft DC motor motion, realize the integrated design of manual control and automatic control, increase and cancel the automatic control function, provide the selectivity of two-way control aircraft motor, integrated function, reduce weight and cost and reduce the burden on pilots.

The technical solution of the present invention is to optimize the design of the circuit for bidirectional control of the movement of the DC motor, combine the manual control switch of the motor with the automatic control of the computer, and at the same time, increase the function of manually canceling the automatic switch, so as to realize the manual and automatic control of the DC motor and can Artificial cancellation of automatic control.

A circuit for bidirectionally controlling the movement of an aircraft DC motor, including a manual control switch, a relay and an automatic cancel switch, wherein the input terminal of the manual control switch is connected to the high end of the output of the power supply, the default output terminal is connected to the high end of the relay and the default input terminal of the relay control switch, and the other The first output terminal is connected to the high end of the motor off input and the non-default output terminal of the second relay control switch. The second input terminal of the relay control switch is connected to the high end of the power output. The other output terminal is not connected, the default output terminal of the relay control switch 2 is not connected, the low end of the relay is connected to the default output terminal of canceling the automatic switch, the input terminal of canceling the automatic switch is connected to the output terminal of the computer to automatically close the logic switch, and the automatic switch is cancelled. The other output is not connected.

The invention has the advantages of realizing the integrated design of manual control and automatic control for the circuit for bidirectionally controlling the motion of the DC motor of the aircraft, integrating functions, reducing weight and cost, convenient implementation, wide adaptability and low cost.

Description of drawings

Fig. 1 is the circuit diagram of the present invention.

Detailed ways

The present invention will be described in further detail below.

In the design of the control circuit of the DC motor on the actuator, the manual cut-off and switch-on functions are considered, and the automatic cut-off and switch-on functions are also considered. Because the working environment on the aircraft is complex, the automatic cut-off function must also be considered. Based on the above functional requirements, such a circuit for bidirectionally controlling the motion of a DC motor can be used in the control circuit of the actuator motor.

As shown in the figure, it is a circuit for bidirectionally controlling the movement of the DC motor of the aircraft, in which, the 28VDC power supply, the output high end is connected to pin 1 and the low end is connected to pin 6; the computer automatically closes the logic switch, there is logic bit NC and pin 7, and the external output terminal Connect to pin 2; DC motor, including its motor closing and opening input high-end respectively connected to pin 3 and pin 4, the low end of the motor connected to pin 5, the touch switches at both ends of the motor are respectively connected to the vacant position CLOSE and OPEN; pins 5 and 6 , 7 are all connected to the power ground;

Control the motor circuit, including manual control switch, relay and cancel automatic switch, wherein, the input terminal of the manual control switch is connected to the high-end pin 1 of the power supply output, the default output pin A is connected to the high-end of the relay and the relay control switch is a default input terminal and the other output terminal Pin B is connected to the high-end pin 3 of the motor off position input and connected to the non-default output terminal of the relay control switch 2, the input terminal of the relay control switch 2 is connected to the high-side pin 1 of the power supply output, and the default output terminal of the relay control switch 1 is connected to the high-side pin of the motor open position input 4. The other output terminal of the relay control switch 1 is not connected, the default output terminal of the relay control switch 2 is not connected, the low end of the relay is connected to the default output terminal pin C of the cancel automatic switch, and the input terminal of the cancel automatic switch is connected to the computer automatic shutdown logic The pin 2 of the output end of the switch is canceled, and the pin D of the other output end of the automatic switch is not connected.

When the manual control switch is placed on the B contact, the 28V power supply provides the high-end power supply to the motor through pin 3, and the pin 5 provides power to the motor. Open the circuit and connect it, thereby disconnecting the power supply of the motor so that the motor moves to the closed position, and realizes the function of manually cutting off the motor;

When the manual control switch is placed on the A contact, the 28V power supply provides the motor with the high end of the power supply through the manual switch A and pin 4, and the pin 5 provides the power supply ground for the motor, and the motor moves to the open limit position, so that the upper close circuit is connected to CLOSE position, the lower open circuit is disconnected to the OPEN position, thereby disconnecting the motor and turning on the high end of the power supply so that the motor moves to the open position to realize the function of manual connection of the motor;

When the automatic shutdown switch of the computer is set to the air switch (NC), that is, when the above-mentioned state is defaulted, the motor is in the open position;

When the automatic shutdown switch of the computer is placed on pin 7 and grounded, the relay will work, and the control switch 1 and switch 2 will be controlled to non-default output terminals, then the 28V power supply will supply the high-end power input for the motor through pin 1 and pin 3, and pin 5 will The motor provides power, and the motor moves to the closing limit position, so that the upper closing circuit is disconnected to the CLOSE position, and the lower opening circuit is connected to the OPEN position, so that the motor is disconnected and the power supply is turned off so that the motor moves to the closed position, realizing the function of automatically cutting off the motor ;

When the computer automatic shutdown switch is placed on pin 7 to ground, after realizing the function of automatic motor cut-off, if the manual press cancels the automatic switch to the output terminal D, the relay function will be disconnected, and the double-way spring switch will automatically return to the default output terminal, then 28V power supply pin 1 provides power to the motor through pin A and pin 4 to open the input high end, pin 5 provides power to the motor, the motor moves to the open limit position, so that the upper closing circuit is connected to the CLOSE position, and the lower opening circuit is disconnected To the OPEN position, thereby disconnecting the motor and turning on the high end of the power supply so that the motor moves to the open position to realize the function of turning on the motor, and then realize the manual cancellation of the automatic cut-off function of the motor.

Claims (1)

1. A circuit for bidirectionally controlling the motion of an aircraft DC motor, characterized in that it includes a manual control switch, a relay and an automatic switch for cancellation, wherein the input terminal of the manual control switch is connected to the output high end of the power supply, and the default output terminal is connected to the high end of the relay and the relay control switch One default input terminal, the other output terminal is connected to the motor off input high end and the non-default output terminal of the relay control switch two, the relay control switch two input terminal is connected to the power output high end, the default output terminal of the relay control switch one is connected to the motor open input high end , the other output of the relay control switch 1 is not connected, the default output of the relay control switch 2 is not connected, the low end of the relay is connected to the default output of canceling the automatic switch, and the input of canceling the automatic switch is connected to the output of the computer automatically closing the logic switch end, cancel the other output end of the automatic switch without connection, and the input end of the computer to automatically close the logic switch includes a default empty switch and a ground end.