Galvanometer motor and LiDAR

A LIDAR, wherein the LiDAR comprises a galvanometer and a galvanometer motor, the galvanometer motor comprising:

• a rotor assembly, wherein the rotor assembly comprises a shell, a rotating shaft, and a magnetic pole, the shell has a first end and a second end that are arranged opposite to each other, the second end of the shell has an opening, one end of the rotating shaft is connected to the first end of the shell, the other end of the rotating shaft extends towards the opening, the magnetic pole is mounted on an inner side wall of the shell, and there is a gap between the magnetic pole and the rotating shaft;
• a fixing structure, wherein the fixing structure comprises a stator assembly, a mounting sleeve, and a base, the mounting sleeve is partially located inside the shell and partially extends to outside of the shell through the opening, the mounting sleeve is movably socketed with the rotating shaft, the stator assembly is mounted on outside of the mounting sleeve inside the shell, there is a gap between the stator assembly and the magnetic pole, the stator assembly is used to generate a rotating magnetic field for driving the magnetic pole to rotate, the base is mounted on the mounting sleeve outside the shell, and there is a gap between the base and the second end of the shell;
• and
• an angular position sensor, wherein the angular position sensor is used to detect an angular position of the rotor assembly, and the angular position sensor comprises a trigger and a sensing element, the trigger is mounted on the second end of the shell, and the sensing element is mounted on a side surface of the base close to the shell,
• wherein the galvanometer is mounted on the shell.