What are the advantages and characteristics of hollow cup motors.

What are the advantages and characteristics of hollow cup motors.

Hollow cup motors are widely used in fields such as smart home drives, automotive drives, medical devices, robots, industrial automation equipment, communication equipment, massage and healthcare equipment, etc. Received recognition from many customers, with a reasonable cost performance ratio. What are the advantages of hollow cups? Please refer to the following points:

1. Reliable operational stability:

Strong adaptability, speed fluctuations can be controlled within 2%.

2. Maximum energy conversion efficiency (a measure of its energy-saving characteristics):

Its efficiency is usually 70, and some products can reach 90 (ordinary iron core motors are 15-50,

3. High energy density:

Compared with iron core motors of the same power, its weight and volume have been reduced by 1/3-1/2; The corresponding parameters such as speed voltage, speed torque, torque current, etc. all show standard linear relationships.

4. Quick start and brake, very responsive:

The mechanical time constant is less than 28 milliseconds, and some products can reach up to 10 milliseconds. Under high-speed operating conditions in the recommended operating area, speed regulation is sensitive;

5. Less electromagnetic interference:

Adopting high-quality electric brushes and commutator structures to reduce commutation sparks and eliminate additional anti-interference devices;

6. Small rotational fluctuations:

Due to the absence of potential mechanical losses in the iron core, the stability of the hollow cup motor operation is very reliable. Moreover, its volume and weight have overcome the limitations of traditional iron cores, providing ample room for expansion in design. Many advanced technologies can be introduced to regulate the fluctuation of speed, making the frequency and time of the hollow cup motor much smaller than traditional motors. Therefore, hollow cup motors are the best choice for precision electrical appliances.

7. No torque hysteresis:

The copper plate coil method has no slotted silicon steel sheets, no hysteresis loss, and no cogging effect, reducing speed and torque fluctuations.

8. Good stability:

The production technology of hollow cup motors is also relatively mature in China, and the general application requirements are that each manufacturer has supporting research and development, testing, semi automation, and automation production experience, and the product consistency and stability are reliable.

9. Good cooling effect:

There is airflow on the inner and outer surfaces of the copper coil, which has a better cooling effect than the slotted rotor coil. Traditional enameled wire is embedded in the grooves of silicon steel sheets, resulting in less airflow on the coil surface, poor heat dissipation, and high temperature rise. Under the same output power, motors using copper coil mode have a smaller temperature rise

10. High peak torque:
The ratio of peak torque to continuous torque is very large because the torque constant remains constant when the current reaches its peak. The linear relationship between current and torque enables the motor to generate greater peak torque. In traditional motors, when the motor reaches saturation, the torque of the motor will not increase no matter how much current is added.