The coreless motor which is also called the hollow cup-shaped motor,belonging to the DC,
permanent magnet,servo micro-motor,which has excellent energy-saving characteristics,
convenient to control and steady operating performance, as a high efficient
energy conversion device,
it represents the development of motor.The coreless motor breaks in the structure
of the traditional motor of the rotor structure, using a non-core rotor, also called the hollow cup-shaped rotor. At the same time this structure significantly reduces
the moment of inertia, and makes fast response with good control and the servo performance.Hollow cup-shaped motor performance
well in the energy-saving,controlling and dragging aspects.
The hollow cup-shaped motor is divided into brush and brushless type,
brush hollow cup-shaped rotor uses a non-core rotor,the brushless hollow cup-shaped also uses a non-core rotor.
The characteristics of the hollow cup-shaped motor:
1.Energ-ysaving:
High energy conversion efficiency. The maximum efficiency is usually above 70 percent, some of the products
can even reach above 90 percent.
2.Control features: Rapid starting and braking with the fast response and mechanical response time
constant is less than 28 milliseconds, some can even reach 10ms or less, in the recommended high-speed running state,you can easily control it.
3.Drag features: Operational stability is very reliable with very small fluctuations. As a mirco motor, we
can easily control the fluctuations within 2 Percent. Besides, the energydensity of the motor
raises substantially, compared to the same power of the core motor, which reduces about 1/3-1/2.
Applications:
1.Usually used in the rapid response servo system, such as the flight direction adjustment of the guided missile,
high accuracy record and measuring equipments. As to the industrial robot, a hollow cup-shaped motor can perfectly meet its technical requirements.
2 robot, a hollow cup-shaped motor can perfectly meet its technical requirements
3.For the drive element of the products that need steady continuous dragging, such as portable instrument
and meter, the field work equipment, electronic cars and so on , it can provide the power supply to extend abov.
4,Various house-hold electronic appliance and industrial products, a hollow cupshaped motor can make
the products to a higherlevel and performances well.