DC風(fēng)機(jī)的原理 ?

1. DC無刷直流風(fēng)機(jī)省去了勵磁用的集電環(huán)和電刷，在結(jié)構(gòu)上大大簡化，不但改善了電機(jī)的工藝性，而且電機(jī)運(yùn)行的機(jī)械可靠性大為增強(qiáng)，壽命增加。

Brushless DC fan saves the excitation of collector ring and brush,greatly simplifies the structure ;Not only improved the technology of motor but also greatly enhance menchanical reliability of motor operation and increase the service life.

2. DC無刷直流風(fēng)機(jī)采用了永磁體勵磁，消除了感應(yīng)電機(jī)勵磁電流產(chǎn)生的損耗；實現(xiàn)損耗小、效率高和特點；

Brushless DC fan use a permanent magnet exciation, eliminnate the loss of induction motor excitation currents; reailzing the small loss and high efficiency characteristics.

3. 與感應(yīng)電機(jī)的變頻調(diào)速相比，DC 無刷直流電機(jī)的調(diào)速控制不但簡單，而且具有更好的調(diào)速性能。控制簡單，可以基本實現(xiàn)良好的調(diào)速性。

Compared with the frequency control of induction motor,brushless DC motor is simpler and more controllable, easy to perform control.

4. 逆變器等元器件容量低，電路較為簡單，產(chǎn)品的成本低于EC風(fēng)機(jī)。

The components, such as inverter etc, whose capacity is low,and circuit are simpler . The cost is lower than EC biower’s.