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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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What are the main reasons for the noise sources of fans?
Oct 26 , 2021
Noise is a kind of noise that makes people feel noisy and boring, and its degree sometimes varies with people's mood. But continuous noise will also pollute the surroundings. The causes of noise generated by general cooling fans can be divided as follows: 1. Noise caused by blade rotation When the blade rotates, it will generate friction or impact with the air. High rpm exhaust fan, the faster the...
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How to judge the cooling performance of the cooling fan?
Nov 03 , 2021
Cooling fan can be selected from the main parameters such as bearing, airflow, pressure, size, motor and so on. What are the specific factors that will affect the performance of the cooling fan? How do we judge whether it is a high performance cooling fan? 1. Related to the bearing used by the cooling fan The most commonly used bearings for cooling fans are sleeve bearings and ball bearings. Sleev...
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Is the service life of the DC fan affected by the environment?
Nov 09 , 2021
In daily life, in order to extend the service life of DC fans and reduce the cost of equipment loss, we will regularly inspect and maintain the DC fans in mechanical equipment. However, as the seasons change, the surrounding ambient temperature will change accordingly. In spring and autumn, the temperature is suitable, the winter is bitterly cold, and the summer is scorching, so is the service lif...
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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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Design Principle of Air Purifier Cooling Fan
Nov 22 , 2021
With the development of society, people's requirements for air quality are getting higher and higher, and the air purifier industry has also developed, and the cooling fan that is a good partner of air purifiers has also developed. Air purifier is a common electrical appliance in people's homes, which is frequently used and easily worn out. In order to prolong the service life of the purifier, a c...
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What is the EC fan?
Nov 29 , 2021
The voltage used in electronic products is divided into direct current (DC) and alternating current (AC). Our usual household appliances, such as electric lights, air conditioners, refrigerators, etc., are AC power supply, while we use DC power supply with batteries (such as mobile phones, flashlights, clocks, etc.). In principle, the efficiency of DC cooling fan is higher than that of AC cooling ...
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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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