What is a coreless motor in the first place? A thorough explanation in the video #DrivingPrinciple
Answering the frequently asked question at exhibitions, "What exactly is a coreless motor?" A thorough explanation of the "differences in driving principles compared to motors with iron cores."
This time, we will cover the basics and explain general brushless coreless motors while comparing them to cored motors. ■ What exactly is a coreless motor? ■ Advantages and disadvantages ■ Operating principles and characteristics ■ Fields where coreless motors are actively used and more will be explained. * Please download the technical document (PDF) titled "What is a Coreless Motor?" and watch the video with it for better understanding. * If you have any questions, please feel free to send them to the comments section or contact us.
basic information
A coreless motor is a type of DC motor (both brushed and brushless) that has no iron core in the rotor. In the case of a brushed DC motor, it has a structure where a cup-shaped coil (rotor) is housed inside the housing, with a cylindrical permanent magnet (stator) inside it. Unlike a conventional motor where the rotor is wound with coils around an iron core, the rotor consists only of coils without an iron core, hence it is called "coreless." *It is sometimes referred to as a slotless motor as well. Since there is no iron core, the rotor is lightweight and has a small moment of inertia (low inertia), which results in excellent responsiveness and acceleration. The absence of an iron core also leads to low inductance and very little electrical noise. Additionally, because the rotor itself does not cause changes in magnetic flux, it is cogging-free, resulting in less vibration and noise, and it excels in controllability. It is compact, highly efficient, and is currently one of the most notable technologies. Like cored motors, coreless motors can also be either brushed or brushless.
Price information
Prices vary from low to high, but generally range from a few thousand yen to tens of thousands of yen. Naturally, the price decreases as the quantity increases. Products with brushes are not that expensive, but brushless ones are generally in the higher price range.
Price range
P1
Delivery Time
OTHER
Model number/Brand name
CLB Series (Core Less Brushes) Series
Applications/Examples of results
Mobile phones, smartphones, medical devices, precision instruments, military equipment, aerospace, passenger aircraft seat reclining, model trains, FA equipment, AV equipment, cameras, communication devices, measuring instruments, and many others.
