Customized High Precision CNC Machining Motor Housing

In addition to the protective role of the motor housing, it also plays the role of a component mounting rack. Some other special types of motor housing also have the function of heat dissipation or sound insulation. It can be manufactured by CNC engraving, sand casting, transparent acrylic(PMMA/PC) 3D Printing.

Permanent magnet DC motor is also composed of stator pole, rotor, brush, shell, etc. The stator pole is made of permanent magnet (permanent magnetic steel), with ferrite, aluminum nickel cobalt, NdFeb and other materials. According to its structural form, it can be divided into cylinder type and tile type. Most of the electricity used in the video recorder is a cylinder magnet, while most of the motors used in power tools and automotive appliances use special block magnets.
The rotor is generally made of silicon steel sheet superimposed, which has fewer slots than the rotor of electromagnetic DC motor. Most of the low-power motors used in the video recorder are 3 slots, and the higher-grade ones are 5 slots or 7 slots. The enameled wire is wound between two slots of the rotor core (three slots are three windings), and its joints are welded to the metal sheet of the commutator. The brush is a conductive part connecting the power supply and the rotor winding, which has two properties of conduction and wear resistance. The brush of a permanent magnet motor uses a single metal sheet or a metal graphite brush or an electrochemical graphite brush.
The permanent magnet DC motor used in the video recorder adopts electronic speed stabilizing circuit or centrifugal speed stabilizing device.