Unmanned aerial vehicle (uav) market was taken after the fire, many supply chain upstream of the industry to glow the vitality, such as carbon fiber, do the battery, and even do the landing gear. Among them, many accessories are adapt to the unmanned aerial vehicle (uav) the change of the industry, such as model aircraft motor.
the rise of unmanned aerial vehicle (uav) for these originally engaged in ordinary motor manufacturing enterprises to see the hope, some enterprises begin to take this opportunity to unmanned aerial vehicle (uav) motor market, even the originally engaged in intelligent terminal, security, and even toys enterprises are also in the field of mass into the field of unmanned aerial vehicle (uav).
actually motor is referred to as ', commonly called motor, it is a kind of converter converts electrical energy into mechanical energy, by the stator and rotor; Core, magnetic steel main parts. The working principle of the motor is similar to the magnet, the use of electricity to produce the same electrode, mutually exclusive, produce the motor rotation, and unmanned aerial vehicle (uav) model aircraft motor industry also called him.
see here, must have learned in the readers will recall the first principle of electromagnetic induction, can't remember it doesn't matter, you can go to baidu.
unmanned aerial vehicle (uav) is the earliest model aircraft development, since the model aircraft is the precursor of the unmanned aerial vehicle (uav), the model aircraft first is to use the machine? Model aircraft early adoption is brush motor, its built-in mechanical commutator and rotor is in the middle of the core, after the core side has more than three copper, the copper is through external clamp tightly in the above carbon brush for coil power supply. As the rotation of motor in on both sides of the carbon brush is fixed, is in the process of motor rotation have played an important role in reversing, this can also be called a commutator, commutator with the changing direction of motor rotation, and outside rotor is composed of two pieces of magnet steel tightly on the motor shell.
but have a brush motor volume is big, bulky, and small power, life is short, carbon brush easily as the long time work or high voltage load is too large, in a short time the wear is very serious. So, at present the brushless motor gradually replaced with brush.
brushless motor without a built-in commutator brush motor, will not be able to work independently, there must be a commutator, namely brushless electric adjustment can be work. Brushless motor and an external rotor motor, the motor heat dissipation, the magnetic pole number, larger than the inner rotor motor torque and rotational speed is low, most used in model aircraft, unmanned aerial vehicles.
brushless motor without the presence of carbon brush, significantly enhance life. In addition, brushless motor rotation speed is compared to the much bigger brush motor speed. This also caused some problems, at the time of the early brushless motor was unveiled, since most used with low-speed OARS, often & other; Explosive shell & throughout; With & other; Blasting oar & throughout; 。 Explosive shell is refers to the motor speed is too high, due to the large centrifugal force caused by the motor shell burst, magnetic block fly out quickly. Blade is similar, is in after reaching a certain speed, caused by the centrifugal force and other force to screw around flying out of the motor. Also, brushless motor is used outside the electronic commutator, reversing 8 KHZ frequency, frequency is very high, the motor power also increased a lot, also lighter weight compared with brush motor.
but gradually the unmanned aerial vehicle (uav) market in the brushless motor, also led to another parts of fire, electrical modulation. Because of brushless motor can't work independently, there must be electrically controlled cooperate to work as a commutator, so the electrically controlled market also is brought up.
