What is the function of the 3 wires drawn out of the stator of the brushless DC motor

The stator leads out the three-phase line of the brushless motor, which is the power line for the rotation of the motor.

If the rated voltage of your motor is 25V and the power is 24W, and you switch to a 35V driver, if I understand correctly, when you run with an external bus voltage of 25V, there is no impact on the motor, and there is no problem if the load reaches 24W power; If the bus voltage is 35V, the speed of the rotor will be about twice the original maximum speed, which will have a great impact on the structure of your rotor, of course, you can control it through PWM, so that the input motor voltage is about 25V to avoid such a situation; If it is loaded to about 40W at this time, the stator of the motor will be seriously heated.

If you want to change the motor to adapt to the drive, increasing the number of turns is the easiest way, because increasing the number of turns can reduce the speed of the motor and increase the phase resistance, which can reduce your speed and reduce the current at the same time, so that the mechanical strength of the motor rotor and the heat of the stator are solved.

The wire is used to connect the MOS tube.

The switching state of the MOS tube is controlled, so that only 2 of the 3 wires are always on, so as to control the rotation and speed of the motor.

2. DC motor.

direct current machine) refers to the ability to convert direct current energy into mechanical energy (direct current motor.

or a rotating electrical machine that converts mechanical energy into direct current energy (DC generator). It is a motor that can convert direct current energy and mechanical energy to each other. When it is used as a motor, it is a DC motor, which converts electrical energy into mechanical energy; When the generator is running, it is a direct current generator, which converts mechanical energy into electrical energy.

The three wires of the brushless DC motor are equivalent to the U, V and W three-phase wires of the AC motor, which are connected to the three-phase wires of the driver respectively; If the motor current is slow, vibrate, and rotates abnormally after connection, the wiring sequence of the three wires will be changed in turn until the electric disturbance positive difference machine operates normally; One of the swapped states makes the motor rotate clockwise, the other makes the motor rotate counterclockwise, and the motor cannot operate normally in other states. Hope mine can help you.

It uses a three-phase power supply, and the internal connection method is , so there are three lead-out wires.

Brushless DC motor.

The three wires are equivalent to the U, V, and W three-phase wires of the AC motor, which are respectively related to the driver.

The three-phase lines are connected;

If the motor is very current, vibrates and rotates abnormally after connection, the wiring sequence of the three wires will be changed in turn until the motor runs normally;

One of the swapped states makes the motor clockwise.

Rotation, the other makes the motor rotate counterclockwise, and the motor cannot operate normally in other states.

Summary. Wait a minute, I'll sort it out! You make the problem clear, and if there are elements try to take pictures.

Solution: How are the three wires of the brushless DC motor connected?

Wait a minute, I'll sort it out! You make the problem clear, and if there are elements try to take pictures.

The black wire of the brushless motor of the drone is broken at the motor, and it should be connected to the position of the shabu-shabu motor.

Photograph. Doesn't it match the color?

Summary. Hello, I am glad to answer your question The three lead wires of the three-pole brushless DC motor can not be communicated, these three lead wires correspond to the three terminals of the motor, that is, the positive (+) negative (-) neutral (n), the voltage level of the three lead wires is different, the positive is high voltage, the neutral is the intermediate voltage, the negative is low voltage, and there is an opposite current flow between the positive and negative electrodes, and connecting them together will form a short circuit, resulting in damage to the motor. Therefore, the three lead-out wires of the three-pole brushless DC motor cannot be communicated.

Hello, we are happy to answer your question about the three lead wires of the three-pole brushless DC motor can not be communicated, these three lead wires correspond to the three terminals of the motor, that is, the positive pole (+) negative hole disturbance (-) neutral (n), the voltage level of the three lead wires is different, the positive pole is high voltage, the neutral is the intermediate voltage, the negative pole is low voltage, and there is an opposite current flow between the positive pole and the negative pole, and they will form a short circuit when they are connected together, resulting in damage to the motor. Therefore, the three lead-out wires of the three-pole brushless DC motor cannot be communicated.

Dear, do you have any questions?

Hello, I am glad to answer for you, the three lead-out wires of the three-pole brushless DC motor are not connected, which are the three-phase wires of the motor, B, and C, and generally need to be wired in accordance with the phase sequence of the motor. When wiring, pay attention to keep the phase like slag sequence correct, and do not connect the wrong phase, otherwise it will cause the motor to fail to operate normally or run abnormally. At the same time, it is also necessary to pay attention to the rated voltage and rated current of the motor, and the appropriate power supply voltage and current should be selected according to the electrical parameters of the motor when wiring.

The above content is for your reference.