1、 The structure of the door motor

The door lock motor is the core component of the door lock block, and its existence can make the door lock block work normally. Generally, the motor is composed of a motor shell, a motor shaft, an iron core, a coil, a commutator, a carbon brush, a carbon brush holder, and a motor back shell. The working principle of the motor is that the stator and the rotor work together, the rotor is driven by the commutator, the energized coil rotates under force in the magnetic field, rotates around the stator axis, completes the conversion of liquid pressure energy to mechanical energy, generates torque, provides power for the drill, makes the motor with the gear meshing and energized rotation, driving the components for the working cycle。

2、What is the function of the door motor?     

The function is to drive the motor into the working state through the battery power supply, and its performance directly affects and restricts the normal start of the door lock, that is, the door motor is a component that drives the door lock to run. It is based on the principle of live conductor in the magnetic field by electromagnetic force and made, because a coil generated torque is too small, and the speed is unstable, therefore, the motor armature winds a lot of coils, the number of commutation pieces also increases correspondingly with the increase of coils, so as to ensure the generation of sufficiently large torque and stable speed。

3、What are the common motor shell materials?

The main material of the motor lies in its shell, although it is only a small shell piece, but not to be underestimated, the small body contains a large role, it can prevent the human body from touching or approaching the charged part in the shell and touching the rotating parts in the shell, as well as preventing solid foreign objects from entering the motor; It is also dustproof and waterproof, preventing harmful effects caused by water ingress in the motor. The materials of motor housings on the market are mainly iron and aluminum alloys.

The advantages of iron motor shell are: high hardness, good pressure resistance, low price; The disadvantages are: bulky weight, poor thermal conductivity, low elongation and poor stability.
The advantages of aluminum alloy motor shell are: light weight, good heat dissipation, corrosion resistance, easy forming and high tensile strength; The disadvantages are: high price, low hardness, poor mechanical strength。

4、What are the reasons for the failure of the door motor?

In the event of a failure to rotate or slow turning, the owner can check for the following problems：
1.1、The battery has no power or weak power, and then the motor is energized but cannot rotate or rotates slowly。
1.2、 The motor ages, the torque becomes smaller, and the power decreases。
1.3、 The brushes are seriously worn but the brushes are not replaced in time。
1.4、Short circuit and open circuit of coil or armature coil。
1.5、The motor bearing is damaged, causing the motor to be unable to rotate。
1.6、 The gear between the turbine and the turborod is seriously worn or damaged, and the gap is too large。
1.7、 If the starting time is too long or the overload running current is too large, the motor will overheat, and the insulation layer will be damaged, and the motor is likely to burn out。

5、Where can you buy a door lock motor suitable for your car?

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6、Pay attention to the official website of AZGIANT to popularize more knowledge of auto and motorcycle parts for you

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