News News
/
/
/
What's the difference between DC fans and AC fans?

What's the difference between DC fans and AC fans?

(Summary description)1. Working principle:
The working principle of DC heat dissipation fan is: through DC voltage and electromagnetic induction, the electric energy is converted into machinery to drive the blade to rota

What's the difference between DC fans and AC fans?

(Summary description)1. Working principle:
The working principle of DC heat dissipation fan is: through DC voltage and electromagnetic induction, the electric energy is converted into machinery to drive the blade to rota

Information
1. Working principle:
 
The working principle of DC heat dissipation fan is: through DC voltage and electromagnetic induction, the electric energy is converted into machinery to drive the blade to rotate, relying on the coil and IC to switch continuously, and the induction magnetic ring drives the blade to rotate.
 
The working principle of AC fan: Driven by AC power supply, the voltage will alternate positively and negatively, completely independent of circuit control, generating magnetic field. The change speed of magnetic pole produced by silicon steel sheet is determined by the frequency of power supply. The higher the frequency, the faster the magnetic field switching speed, the faster the rotational speed theoretically. However, the frequency can not be too fast, too fast will cause start-up difficulties.
 
 
 
2. Structural composition:
 
The rotor of DC heat dissipation fan includes DC heat dissipation fan blade, which is the source of air flow and fan axis. It is used to support balancing fan blade rotation, rotor magnetic ring, permanent magnet, key of magnetic stage switching speed, magnetic ring outer frame and fixed magnetic ring. In addition, the supporting spring is also included, through which the nodule can be fixed to rotate the whole part and the motor part, to produce the direction of rotation, and to be able to move the key speed of rotation. It has good speed regulation performance and simple control.
 
 
 
The internal structure of AC fan (single-phase) is composed of two coil windings, one is start winding, the two windings are connected in series with each other, thus forming three points, the series point is the public end, the start winding end is the start winding end and the start winding end is the running end. In addition, a start-up capacitor is needed, usually between 12 uf, withstanding voltage is usually 250 v, with two joints. One end is connected to the end of the starting winding, the other end is connected to the end of the running winding, forming a triangle type. The power supply (without distinguishing the zero line of the fire line) is connected to the end of the running winding (that is, to the end of the capacitor), the other is connected to the common end, and the grounding wire is connected to the motor housing.
 
 
 
3. Material characteristics:
 
Material of DC heat dissipation fan: It is made of alloy material and can be used for more than 50,000 hours continuously. The internal structure of DC has transformer and main control board (including frequency conversion circuit, rectifier filter, amplifier circuit, etc.) which are not affected by voltage fluctuation, so its service life is longer.
Keyword:

Scan the QR code to read on your phone

Related news

JSL attended Shenzhen International Electronics Fair ELEXCON 2021
JSL attended Shenzhen International Electronics Fair ELEXCON 2021
At the end of September 2021, the ELEXCON Shenzhen International Electronics Show and Embedded System Exhibition hosted by UBM Creative Exhibition (Shenzhen) Co., Ltd. will be "The smart world starts here! Towards smart design-advanced packaging and testing-supply chain upgrade-ecosystem ”As the theme, focusing on displaying 5G, Internet of Things, edge AI, domestic chips, RISC-V, embedded systems, TWS and wearable technology, SiP and advanced packaging and testing, autonomous driving and Internet of Vehicles, shared charging and replacement technology, Three generations of semiconductors and other new technology products and solutions, 20+ summit forums will be held on the spot, 200+ senior expert speakers will be invited to create an annual carnival covering Chinese electronic engineers and embedded developers!
2021-11-04
JSL wishes you Happy National day!
JSL wishes you Happy National day!
Celebrate National Day, celebrate the whole country! On this beautiful day, JSL will accompany you with the most sincere blessings! We wish all customers: all the best, all wishes come true, family and all things are prosperous! Happy National Day!
2021-10-01
Congratulations to JSL for obtaining IATF16949 certification
Congratulations to JSL for obtaining IATF16949 certification
In December 2020, Shenzhen Jiangshanlai Electronic Technology Co., Ltd. successfully obtained IATF 16949 certification, which marks that we have been recognized by the international organization for Standardization (ISO) and the international automotive working group (IATF). It also urges jiangshanlai to continue to use the organizational environment, leadership, support and technology to improve product quality.
2020-12-18
JSL wish you Happy Chinese New Year!
JSL wish you Happy Chinese New Year!
Bullish brings good luck, Happy new year to Ruixiang. Earth wind and sunshine smile, The stars shine high and the house is full of happiness. JSL wish you a good year of the Ox and a happy family!
2021-02-12
ewm

Mobile : +86 13823587960

Add:Floor 1, floor 2, floor 3 and floor 4, No. 42, mudunjiu village, Dongzhou community, Guangming Street, Guangming District, Shenzhen

wx
qq
wb
fb
tw

Copyright©2021Shenzhen Jiangshanlai Electronic Technology Co., Ltd.

Support for IPv6 Traffic   Powered by www.300.cn 

Which DC fan wholesale manufacturer is better, the recommended DC fan supplier rankings, the price of brushless DC fans, and what are the