A DC fan is a fan driven by a DC voltage.

　　Mainly divided into two categories: brushless and brushed 

　　The continuous working life of a brushed fan is from several hundred to more than 1,000 hours. When the carbon brushes are reached, they need to be replaced, otherwise it will easily cause bearing wear.

　　The continuous working life of brushless fans is generally 10,000 hours, and the speed can be controlled. They are widely used in heat dissipation and ventilation of electronic products.

　    In simple terms, by changing the alternating frequency and waveform of the current wave input to the stator coil of the brushless motor, a magnetic field that rotates around the geometric axis of the motor is formed around the winding coil. This magnetic field drives the permanent magnet on the rotor to rotate, and the motor rotates. The performance of the motor is related to factors such as the number of magnets, the magnetic flux intensity of the magnets, and the size of the motor input voltage. It is also closely related to the control performance of the brushless motor, because the input is direct current, and the current needs to be converted into three-phase alternating current by an electronic speed regulator. It is also necessary to receive control signals from the remote control receiver to control the speed of the motor to meet the needs of the model. In general, the structure of the brushless motor is relatively simple, and the brushless electronic speed regulator is what really determines its performance. A good electronic speed regulator requires overall control of processes such as single-chip control program design, circuit design, and complex processing technology, so the price is much higher than that of a brushed motor.

    Shenzhen Huaxinrong Plastic Electronics Co., Ltd. (a subsidiary of Dongweifeng) was established in 2008. It mainly produces and develops a series of products such as AC and DC cooling fans and DC motors. In today's rapidly changing modern technology, all colleagues of Dongweifeng will continue to dedicate high-quality products and services to our customers, and strive to become an indispensable partner for every customer to achieve success.

        Shenzhen Dongweifeng Electronic Technology Co., Ltd. was established in 1991. It is a national high-tech enterprise. It has now developed into a professional supplier of cooling solutions and products for computers, electronics, etc. The company has successfully passed ISO9001:2000 quality system certification, ISO14001:2004 environmental system certification and UL. TUV. CE product certification. As a national key high-tech enterprise focusing on R&D, manufacturing and sales, it has formed three pillar industries: computer electronic radiators, cooling fans; LED lighting, outdoor landscape lighting engineering lighting; and architectural decorative panels.