Brushless DC motors have flooded into various industries like mad waves, and have become a rising star in the motor industry. Can we make bold guesses --
In the future, the motor industry will enter the era of “brushless�
Brushless DC motors do not have brushes and commutators, so they are named. Composed of the motor body and the driver, it is a typical mechatronic product. As a "newcomer" in the motor industry, although the history of brushless DC motors entering China is not long, and the price is higher than that of brushed motors, the development momentum of brushless motors is obvious, and the development momentum is rapid. After entering China, it was quickly favored by industries such as home appliances, automobiles, ships and machinery, and occupied a place in various industries and developed rapidly.
Why can a brushless motor occupy a place?
The low price is undoubtedly the focus of the industry to attack brushless motors, so why can it still occupy a place in the motor market for a short time? In fact, this is similar to Apple's, as long as it can guarantee the use of results and quality can attract loyal consumers. For example, Apple's electronic products are now more expensive than the average, but the market is still hot. Obviously, when quality and price can only be chosen one by one, consumers with purchasing power will give priority to the use effect.
What is the excellent performance of brushless motors?
What are the advantages of brushless motors to attract loyal consumers? First of all, the brushless motor has a smaller geometry and lighter weight, which meets the market's design requirements for light weight and good performance.
Second, since the permanent magnet is used, the rotor has no core loss, so the brushless motor is more efficient. At the same time, the use of the permanent magnet can also reduce the maintenance of the motor and prolong the service life of the motor.
Third, the brushless motor operates in a self-controlled manner and does not cause oscillation and loss of synchronization when the load is abrupt. By using a suitable transformation algorithm, the thermal performance can be improved, a better motor speed range and response time can be achieved, better electromagnetic isolation is possible, and the torque response is better.
To sum up: small size, light weight, long life, high efficiency, low noise, low vibration, no spark, high reliability, good stability, adaptability, simple maintenance and maintenance. Thanks to its excellent performance, brushless DC motors have quickly attracted the attention of manufacturers of "small, light and thin" audio-visual products, quiet home appliances and luxury cars. As a result, countries have also accelerated the development of brushless motor products and the market. Many Japanese companies have successfully applied brushless DC motors to digital cameras, mini-recorders, camcorders, printers, storage movers, mobile phones, and automotive air conditioners, vacuum cleaners, electric vehicles, and heart pumps.
Now brushless DC motor has been able to completely replace DC motor speed regulation, inverter + variable frequency motor speed regulation, asynchronous motor + speed reducer speed regulation. The carbon brush and slip ring structure are eliminated while combining all the advantages of the conventional DC motor, and the torque characteristics are excellent. The medium and low speed torque performance is good, the starting torque is large and the starting current is small, the stepless speed regulation, the speed regulation range is wide, and the overload capability is strong. Moreover, the current life of a conventional brushed motor is about 10,000 hours, and the life of a brushless DC motor is several times that of it.
In addition, because the brushless motor itself has no excitation and carbon brush loss, eliminating multi-stage deceleration loss, the overall power saving rate can reach 20%~60%, so the price difference with the ordinary motor can only rely on the power saving one. After one year, the purchase cost was recovered. In addition, the government has been promoting energy conservation and environmental protection in recent years. Brushless motors can be said to be the trend of motor development.
It is believed that in time, the price will not become a stumbling block to the occupation of the motor market by brushless motors. In the foreseeable future, brushless motors will completely eliminate brushed motors, and motor products will enter the “brushless eraâ€. In order to meet the "brushless era", the domestic ZLG Zhiyuan electronic MPT1000 motor test system, a test system carefully prepared for the motor, will become the wing of the development of brushless motors.
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