电机相关名词解释（Explanation of motor related terms）What is called an electric motor?Answer: motors are components that convert electrical energy from batteries into mechanical energy and drive the wheels of electric cars.What is winding?Answer: armature winding is the core part of DC motor. It is a coil made of copper enameled wire. When the armature winding rotates in the magnetic field of the motor, electromotive force will be generated.What is called a magnetic field?Answer: the force field around the permanent magnet or electric current and the range of space or magnetic force that any magnetic force can achieve.What is magnetic field strength?Answer: the definition of carrying 1 amperes of current infinite wire magnetic field intensity in the distance is 1A/m meters away from the wire 1/2 (AMPS / m, the international system of units SI); in the CGS unit system (CGS), to commemorate the contribution of Oster to the definition of electromagnetism, carrying 1 amperes of current in infinite wire the magnetic field intensity of 0.2 cm distant distance leads to 10e (Oster), 10e=1/4.103/m, magnetic field strength is usually expressed in H.What is the Ampere rule?Answer: with the right hand holding the wire, so that the direction of the thumb straight with the direction of the current, then the bending of the four finger refers to the direction of the magnetic induction line around the direction.What is called magnetic flux?Answer: also called flux flux in uniform magnetic field in a plane perpendicular to the direction of the magnetic field, the magnetic induction intensity of the magnetic field is B, the plane area is S, we define the product of magnetic induction S and B area, called through the surface flux.What is stator?Answer: brush or brushless motor does not turn part of the work. The motor shaft of a wheel type brush or brushless gearless motor is called a stator. This motor can be called an internal stator motor.What is the rotor?Answer: brush or brushless motor rotation part of work. The shell of a wheel brush or brushless gearless motor is called a rotor, which can be called an outer rotor motor.What is called carbon brush?Answer: brush motor inside the top of the commutation device surface, when the motor rotates, the power can be transferred to the coil through the phase shifter, because the main component is carbon, called carbon brush, it is easy to wear. The replacement should be maintained regularly and the carbon deposition should be cleaned up.What is brush grip?Answer: in the brush motor inside and hold the position of carbon brush mechanical guide groove.What is a phase shifter?Answer: brush motor, a strip of metal surface are mutually insulated, rotating with the motor rotor, positive and negative strip metal alternate contact brush pole, alternate motor coil current direction, complete phase change brush motor coil.What is phase sequence?Answer: brushless motor coil arrangement order.What is magnetic steel?Answer: call magnetic material for high magnetic field strength, electric motor, using neodymium magnets.What is electromotive force?Answer: it is produced by the rotor of the motor cutting the magnetic field line, and its direction is opposite to the external power supply, so it is called back electromotive force.What is a brush motor?Answer: when the motor works, the coil and commutator rotate, the magnetic steel and carbon brush do not turn, the coil current direction alternating change is to rely on the motor rotating commutator and brush to complete. In electric vehicle industry, brush motors are divided into high speed brush motor and low speed brush motor. There are many differences between brush motor and brushless motor. From the word, it can be seen that brush motor has carbon brush, brushless motor has no brush.What is a low speed brush motor? What are the characteristics?Answer: in the electric vehicle industry, low speed brush motor refers to hub type low-speed large torque brushless drive DC motor, the relative speed of motor stator and rotor is the speed of the wheel. The magnetic steel on the stator is 57 pairs, and the number of slots in the rotor armature is 3957. Because the armature winding is fixed in the wheel housing, the heat is easy to dissipate with the rotating shell. The rotating shell is woven with 36 spokes, which is more conductive to heat.Features of brush toothed motors?Answer: there is brush in the brush motor,The main hidden danger is brush wear, users should note that the brush motor is divided into two kinds of teeth and teeth. At present, many manufacturers choose to use a brush gear motor, it is a kind of high speed motor, the so-called tooth is through the gear reduction mechanism, the speed is lower (by national standard electric vehicles shall not exceed 20 kilometers per hour, so the motor speed should be a