In everyone's impression, the air conditioner always needs a lot of power, because the air conditioner motor needs a lot of power to run. Therefore, for a long time, the upgrading direction of air conditioning lies in the research of air conditioning motor. "DC" has become an important direction for upgrading the product structure of air conditioning motor. Since 2010, air conditioning enterprises have been shouting "full DC". Since variable frequency air conditioning, the prospect of DC brushless motor has been favored by the industry, but it has been in the stage of "small growth" for a long time.
The full name of the air conditioner brushless DC motor is the air conditioner brushless DC reduction motor or the air conditioner drive gear box. The main drive structure is assembled by the drive brushless DC motor and the reduction box (reducer); The brushless DC motor of air conditioner has a general power of 50W, a voltage of 24V or less, and a diameter of 38mm or less, which belongs to a small power micro reduction motor; In order to better meet the needs of application equipment, the technical parameters of customized air conditioners and brushless DC motors are generally used.
Advantages of brushless motor in air conditioning:
1、A wider range of flat speeds can be achieved. DC brushless motor is easier to control and has a wider speed range. It is a real stepless speed regulation system, which can freely adjust the refrigeration output of the air conditioning system.
2、 In the speed regulation process, the load nature in the motor circuit has not changed, the harmonic generation is less, the impact on the power grid is less, and the energy is more energy-saving.
3、 During operation, the temperature rise is relatively low, about 20% lower than that of AC asynchronous motor.
4、 The speed regulation system has high reliability and good dynamic performance. The DC brushless motor has high reliability and does not change the circuit performance of the load during the adjustment process, making the system more stable.
It can be seen from the characteristics of brushless motor that energy saving, noise reduction, accurate temperature regulation and stepless speed regulation are important performance improvements of the whole air conditioner. In fact, the advantages of DC motors listed here are because home air conditioners have entered a new era of smart home.
Source: Lightning Eight Diagrams
