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Introduction of some related knowledge about cooling fan noise
Jun 11 , 2021
How to measure the noise of cooling fan? What are the main factors related to the noise generated by cooling fans? How should we reduce the noise of cooling fans? 1、How to measure the noise of cooling fan? Noise is the sound level generated by the cooling fan during operation, and its unit is decibel (dB). Quiet cooling fan, when measuring the noise of the cooling fan, it needs to be carried out i...
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Advantages of DC Brushed DC Motor Compared with DC Brushless Motor
Aug 04 , 2021
1. Simple structure and mature technology DC brushed motor has simple structure, easy production and processing, convenient maintenance, and easy control. The DC motor also has a fast response, large starting torque, and can provide rated torque performance from zero speed to rated speed. 2. Fast response speed and large starting torque DC brushed motor has a fast starting response speed, large st...
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How to choose a good cooling fan?
Oct 11 , 2021
With the continuous improvement of people's living and economic level in China, DC cooling fans are more and more widely used in our lives, which is also the main reason for many DC cooling fans suppliers. So, among so many suppliers, how do we choose a good cooling fan? 1. Choose from the appearance: From the outer surface, it should be thicker overall, with pure color (especially black), and the...
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Does the DC cooling fan have an impedance protection function?
Oct 19 , 2021
DC cooling fan is an important cooling equipment for modern industrial machinery. Its basic structure is generally composed of motors, bearings, blades, housing (including fixing holes), power plugs and wires. The motor is the core of the DC cooling fan. It is generally composed of a stator and a rotor. The stationary part of the motor is called the stator, and the part that rotates when it is run...
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How to reduction the noise of fan in design?
Nov 17 , 2021
The specific noise reduction methods of the fan are as follows: (1) Enhance the aerodynamic load of the cascade and reduce the circumferential speed For the axial cooling fan, strong forward blades are used, and the multi blade impeller is beneficial to increase the aerodynamic load of the cascade. Under the same air volume and pressure, the circumferential speed on the outer circle of the impelle...
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Characteristics and advantages of EC cooling fan
Nov 29 , 2021
The more commonly used brushless cooling fans are divided into EC, DC, AC, etc. Among them, EC fans are DC fans, and EC cooling fans convert AC to DC. In addition to DC voltage power supply, AC voltage can also be used for power supply. The voltages of 12V, 24V, 48V, 110V, 220V, 380V are universal, without conversion. 1. The EC fan breaks the frequency limitation of the traditional AC fan, and can...
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What is the difference between the 2-Pin, 3-Pin, and 4-Pin of the cooling fan?
Dec 08 , 2021
Types of cooling fans: 2-Pin, 3-Pin, 4-Pin There are many classification methods for cooling fans, including DC and AC, brush and brushless cooling fan, sleeve bearing and ball bearing cooling fan. We are mainly talking about the power line connectors of cooling fans, which can be divided into 2-pin, 3-pin, and 4-pin. 2-Pin fan: simple structure, but can't measure speed Generally, if there ar...
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What is the relationship between starting voltage and cooling fan?
Dec 14 , 2021
With the increasing use of cooling fans, many people are interested in the details of cooling fans. Some people will ask whether the low voltage will affect the cooling fans. Low voltage has no effect on the fan, it will only make the fan rotate at low speed, which can prolong the service life of the fan, but low voltage for a long time may damage the motor. Voltage includes starting voltage and o...
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