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[Thermal Management Insights] Structural Components of DC/AC Direct-Current and Alternating-Current Cooling Fans

Category:

Industry Trends

Release time:

2019-10-16

  Cooling fan Depending on the changes in the application environment, the fans used can be categorized by voltage into DC cooling fans and AC cooling fans. The EC cooling fans, which evolved from these, are now also widely used in electronic power systems and military equipment. It finds applications in industries such as home appliances and mechanical equipment. Let’s take a closer look at the structures of industrial cooling fans—DC/AC, DC, and AC cooling fans!
The structure of DC cooling fans: Industrial cooling fans consist of two main parts—the stator and the rotor.
Rotor: Includes the impeller, axial shaft, magnet, magnet casing, and oil ring. Stator: Includes the motor, frame, bearing, fastener, spring, top cover, sl steel sheet, and bottom cover. cover), circuit board (PWM assembly).
 
The winding section of the motor consists of silicon steel laminations, enameled wire, and upper and lower insulating frame structures.
The function of the silicon steel laminations is to guide the magnetic poles and determine the strength of the north and south poles. Meanwhile, the windings dictate the direction of the magnetic flux lines, driving the magnetic frame to rotate. The windings of the stator are typically arranged in four symmetrical phases, each phase being oriented at a 90-degree angle to the others.
The structure of an AC cooling fan is also divided into two main parts: the stator and the rotor.
Stator: Includes the motor, outer frame, bearings, retaining ring, spring, and silicon steel laminations.
Rotor: Includes blades and hub.
The winding section of the motor consists of silicon steel laminations, enameled wire, and an insulating wire frame.
The single-phase internal structure of the stator winding consists of two coils: one is the starting coil, and the other is the running coil. These two coils are connected in series with each other, thereby forming three connection points.
 
The above is a sharing of knowledge on the classification of cooling fan structures. Shenzhen Jiangshan Lai Electronic Technology Co., Ltd. is a company specializing in DC brushless motors, DC cooling fans, DC brushless fans, DC stand-mounted fans, boosted cooling fans, and miniature cooling systems. A large-scale enterprise integrating customization, R&D, manufacturing, sales, and service for fans, DC cooling fans, DC blowers, and non-standard fans—wholesale manufacturer and supplier of DC fans. Our products are best-selling in Shenzhen, Guangzhou, and Dongguan in Guangdong Province, as well as in Fujian. Zhejiang, Jiangsu, and other regions.
 
If you have any needs, feel free to consult us.

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