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2023-12-04

The advantages of a motor with a brake compared to one without.

Brake motors can quickly stop rotating or decelerate because they have a dedicated braking system.

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The difference between brushless motors with Hall sensors and without Hall sensors

Brushless DC motors, also known as permanent magnet brushless DC motors, convert DC electricity into mechanical rotation.

2023-12-04

Electric motor for pure electric vehicles

Common DC motors, permanent magnet brushless DC motors, permanent magnet synchronous motors, switched reluctance motors, and transverse flux motors can all be used as automotive motors.

2023-10-30

Principle and application of brushless motor with encoder

A brushless motor with an encoder is a motor that can achieve high-precision control, position detection, and speed control. Its basic components include a brushless motor and an encoder.

2023-10-30

Fundamental causes of noise generation in permanent magnet DC motors

The causes of noise generation in permanent magnet DC motors are basically divided into three categories: electromagnetic noise, mechanical noise, and aerodynamic noise.

2023-06-21

What are the advantages of brushless DC motors?

A brushless DC motor consists of a motor body and a driver, and is a typical mechatronics product. A brushless DC motor consists of a motor body and a driver, and is a typical mechatronics product. The stator windings of the motor are mostly made into a three-phase symmetrical star connection, which is very similar to a three-phase asynchronous motor. Magnetized permanent magnets are attached to the rotor of the motor. In order to detect the polarity of the motor rotor, a position sensor is installed in the motor. The driver is composed of power electronic devices and integrated circuits, and its functions are: to receive the motor's start, stop, and braking signals to control the motor's start, stop, and braking; to receive position sensor signals and forward/reverse signals to control the on/off state of each power tube of the inverter bridge and generate continuous torque; to receive speed commands and speed feedback signals to control and adjust the speed; to provide protection and display, etc. The characteristics of brushless DC motors include the following: 1. Can replace DC motor speed regulation, frequency converter + frequency converter motor speed regulation, asynchronous motor + reducer speed regulation; 2. Has the advantages of traditional DC motors, while eliminating carbon brushes and slip rings; 3. Can operate at low speed and high power, and can directly drive large loads without a reducer; 4. Small size, light weight, high output; 5. Excellent torque characteristics, good torque performance at medium and low speeds, large starting torque, and small starting current; 6. Stepless speed regulation, wide speed regulation range, strong overload capacity; 7. Soft start and soft stop, good braking characteristics, can eliminate the original mechanical braking or electromagnetic braking device; 8. High efficiency, the motor itself has no excitation loss and carbon brush loss, eliminates multi-stage speed reduction loss, and the comprehensive energy saving rate can reach 20%~60%; 9. High reliability, good stability, strong adaptability, simple maintenance and maintenance; 10. Resistant to bumps and vibrations, low noise, small vibration, smooth operation, long life; 11. Does not produce sparks, especially suitable for explosive environments, and has explosion-proof type; 12. Trapezoidal wave magnetic field motor and sinusoidal wave magnetic field motor can be selected according to needs.

2022-12-13

How to maintain a brushless DC motor?

When purchasing brushless DC motors, have you ever considered how to maintain them? Let me introduce you to the maintenance methods of this motor, hoping to help you!

2022-11-25

微型直流电机的两大特点是什么?

A miniature DC motor has the characteristic that it can automatically reduce its speed according to the size of the load, achieving a very large starting torque.

2022-11-03

Structure of DC motor

The basic structure consists of two parts: the stator and the rotor. Note: Do not confuse the commutating poles with the commutator.

2022-11-01

Comparison and analysis of permanent magnet brushless DC motors and permanent magnet synchronous motors

Permanent magnet brushless DC motors and permanent magnet synchronous motors use largely the same materials; the main difference lies in their design.

2022-10-27

86-138-0611-1565

Address: No. 158, Yangguang Road, Luoyang Town, Wujiang District, Changzhou City, Jiangsu Province
Contact Person: Wu Jintao
Email:dw@duoweimotor.com

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