Dongguan Wanhang Electronics Technology Co., Ltd

The Value of Cooling Fans in Medical Equipment(2021年11月24日)

wheecoolingfan — 2021-11-24T17:44:28+0900

https://www.wheecoolingfan.com/products/

WHEE is a leading motor cooling fan supplier in China, focusing on DC brushless motor cooling fans/cooler and modular design, on products including axial cooling fan, universal cooling fan, DC axial fans, centrifugal blowers, frameless fans, micro fans, CPU cooler, and thermal module. Cooperative manufacturer of systematic OEM/ODM products.

Nowadays, electronic cooling fans have been applied to all walks of life. From the previous simple electronic devices to the current high-end intelligent products, smart homes, car cushions, medical equipment, etc., electronic cooling fans have been widely adopted. Which devices in medical equipment use electronic cooling fans? What are the requirements for electronic cooling fans?

1. The role of electronic cooling fans in the medical industry
In the medical industry, the main function of electronic cooling fans is to ventilate, not just to dissipate heat. Medical equipment does not emit too much heat at all. Therefore, the role of the dc cooling fan installed is to ventilate.

2. What should be paid attention to when purchasing electronic cooling fans
When choosing an electronic cooling fan, we should pay attention to the stability, wind pressure, air volume and noise of the fan. Therefore, the choice of the fan is particularly important for the cooling fan supplier.

Electronic cooling fans with high performance, high efficiency, low noise and long service life can greatly help the final performance of the equipment. Of course, what is equally important for medical equipment is a small, powerful, efficient, and high-precision control drive device. Modern operating rooms are inseparable from these medical equipment.

All axial cooling fans, centrifugal and diagonal flow fans are designed for years of use and maintenance-free operation. For demanding applications involving extremely high mechanical stresses, we can also provide heavy-duty fans.

In particular, when running a ventilator in a bedroom, a machine equipped with an internal rotor motor fan can ensure that the pressure increases quickly to match the breathing rate-and the device runs very quietly, ensuring that sleep is not disturbed.

Therefore, in the medical industry, when we choose electronic cooling fans, we must pay attention to the stability, wind pressure, air volume, and noise of the fan.

Analysis of the Bearing of the Cooling Fan(2021年11月24日)

wheecoolingfan — 2021-11-24T17:43:27+0900

https://www.wheecoolingfan.com/products/

Compared with the water-cooled radiator, the most troublesome aspect of air-cooled heat dissipation is the huge noise generated by the electronic cooling fan when it is working. Of course, there are many factors that determine the noise level of an electronic cooling fan. One of the most important factors is the fan's bearing, including hydraulic bearings, ball bearings, and magnetic bearings.

So what are the effects of these bearings on the mute and service life of the DC cooling fans? What's the difference?

1. Bearings of electronic cooling fans
It is generally recommended to use ball bearings for fan bearing systems, because the life of electronic cooling fans usually depends on the reliability of their bearings. Ball bearing systems have been proven to have high efficiency and low heat generation characteristics. Ball bearings belong to rolling friction, rolling by metal balls, with a small contact surface and a small friction coefficient; while oil-bearing bearings have sliding friction and large contact surfaces. After long-term use, the oil will volatilize, the bearing is easy to wear, the friction coefficient is large, and the later noise is louder, the service life is short.

In addition to large ventilation and high wind pressure, reliability is also very important for a cooling fan supplier to produce a good-quality DC cooling fan. The type of bearing used by the fan is very important here as well.

2. Use of bearings for high-speed and low-speed electronic cooling fans
High-speed fans always use ball bearings, while low-speed electronic cooling fans use low-cost oil-impregnated bearings. Oil-impregnated bearing fans only use one bearing; while ball-bearing fans all need two bearings, a single ball bearing is "1 Ball + 1 Sleeve", which still has the composition of an oil-impregnated bearing.

What more advanced than single ball is double ball bearing, namely Two Balls. The life of oil-impregnated bearings is generally 10,000 hours, 30,000 hours for single ball bearings, and more than 50,000 hours for double ball bearings (when the ambient temperature is set below 25°C).

The oil-containing bearings used in electronic cooling fans are made of copper-based powder sintered. The oil-containing bearings need to be added with lubricating oil to reduce the number of sliding friction. The lubricating oil is made of lithium-based grease and special engine oil.

With long-term operation, the oil in the bearing will evaporate and become dry, and the friction coefficient will increase. The operation of the dc cooling fan may be affected, abnormal noise may occur, and the speed may be slow or even not rotating happens. The ball bearing replaces sliding friction with rolling friction with a small friction coefficient and overcomes the shortcomings that the friction coefficient is easy to change, so it has strong running stability and a relatively long life.

4 Standards Help You Choose High-performance Cooling Fans(2021年11月24日)

wheecoolingfan — 2021-11-24T17:43:02+0900

https://www.wheecoolingfan.com/products/miniature-fans-blowers/

The performance of an electronic cooling fan is related to the overall heat dissipation level of the electrical appliances used, and its function is very important. Nowadays, cooling fans are widely used, ranging from electronic products to refrigerator cabinets, electronic cooling fans are needed to ensure that the product temperature is controlled in a controllable range to prolong the service life.

The market for DC cooling fans is large, and there is fierce competition among cooling fan manufacturers. Different manufacturers have different cooling fan models and functions. Consumers will inevitably have a headache when buying cooling fans and do not know which one to choose. Therefore, it is particularly necessary to choose an efficient dc cooling fan.

When purchasing a DC cooling fan, we should focus on the following performance and indicators of the fan:

1. The power of the electronic cooling fan
Generally speaking, the higher the power of the cooling fan is, and the stronger the wind is, the better the heat dissipation effect will be. But our choice of cooling fan does not mean that the power needs to be greater as much as possible, we need to combine the material and working principle of the dc cooling fans to make a comprehensive comparison.

It is also necessary to choose according to the actual use. High-power cooling fans consume more energy. If you don't need too strong cooling effect, you can choose a lower power.

2. The speed of the electronic cooling fan
The speed of the cooling fan is the same as the power, the bigger the better. The speed of the dc cooling fan is also a factor that determines the air volume of the cooling fan.

Of course, if the fan rotates faster, the noise and vibration will definitely be greater. Therefore, when the air volume is sufficient for the cooling conditions of the product, it is better to choose a low-speed dc cooling fan like a micro cooling fan as much as possible.

3. The material of the electronic cooling fan
Generally, there are two main materials for cooling fans on the market: plastic and aluminum. The general material of the dc cooling fan is plastic, while the aluminum fan is an ac fan. The heat dissipation effect of the ac fan is lower than that of the dc cooling fan, and the air volume is small.

4. The noise of the electronic cooling fan
The noise problem of the cooling fan is neither big nor small, and the average user will not care much. However, many dc cooling fans of poor quality will produce a lot of noise due to bearing wear or other reasons after being used for a period of time, which will not only affect the service life of the fan, but also make people feel irritable. Therefore, it is recommended that consumers should choose a large manufacturer to purchase the cooling fan to ensure quality.

The Difference Between Centrifugal Fan and Axial Fan(2021年11月24日)

wheecoolingfan — 2021-11-24T17:42:28+0900

https://www.wheecoolingfan.com/products/centrifugal-fans-blowers/

Among the cooling fans used in air compressors, axial fans and centrifugal fans are common, and their main functions are both to ventilate the air in the environment. So what is the difference between an axial fan and a centrifugal fan, let's talk about the difference in detail below.

1. The appearance and shape of centrifugal fans and axial fans are different
This is an intuitive point. The axial fan, including the industrial axial flow fan, is basically cylindrical in appearance, while the centrifugal fan is snail-shaped or spiral-shaped.

2. The motor connection mode of centrifugal fans and axial fans is different
The motors of axial fans are generally connected inside the body of the fan, and the motors of centrifugal fans are connected by the shaft, so the motors of centrifugal fans are all outside.

3. The installation method of centrifugal fans and axial fans is different
The installation method of axial flow fans is generally relatively simple. For example, a small axial fan can often be seen installed on the wall at home. The installation method of centrifugal fans is more complicated, so I won't introduce it in detail here.

4. The air volume and pressure of centrifugal fans and axial fans is different
The air volume and pressure of the axial flow fans are relatively small, while the air volume and pressure of the centrifugal fan of the same fan diameter will be relatively large.

5. The exhaust direction of centrifugal fans and axial fans is different
The exhaust direction of the axial flow fan is straight along the axial direction. The exhaust direction of the centrifugal fan is perpendicular to the direction of the air inlet, so it can achieve air exhaust at multiple angles.

Characteristics of Axial Flow Fan and Centrifugal Fan(2021年11月24日)

wheecoolingfan — 2021-11-24T17:41:59+0900

https://www.wheecoolingfan.com/products/40-70mm-dc-axial-fans/

Ⅰ. The characteristics and functions of axial flow fans

An axial fan is a fan whose airflow direction is the same as the axis of the blade. For example, electric fans, air conditioner external fans are fans operating in axial flow mode. It is called "axial flow" because the gas flows parallel to the fan axis. Axial flow fans are usually used on occasions with higher flow requirements and lower pressure requirements. The axial fan fixes the position and moves the air.

1. Features of axial flow fans
① Mini axial fan: fast heat dissipation, low noise, low power consumption, energy saving and environmental protection, etc. Because of its small size, it has a wide range of uses.

② Large axial fan: it has the characteristics of simple structure, stability and reliability, large air volume, low noise, and wide range of functions.

2. The role of axial fans
When the fan is turned on, the rear air is good and the front air is sultry. The relay fan can be turned on at the same time as the rear fan. The hot and humid air from the front is sent back and discharged through the rear fan to achieve the normal ventilation effect.

Ⅱ. The application of centrifugal fans

Relying on the input mechanical energy, the machine increases the gas pressure and discharges the gas, which is a dynamic fluid machine.

Centrifugal fans are widely used in:
1. Ventilation, dust exhaust and cooling of factories, ovens, underground garages, tunnels, mines, vehicles, cooling towers, ships and buildings;

2. Centrifugal cooling fans for ventilation and induced draft of boilers and industrial furnaces;

3.Micro centrifugal fan for cooling and ventilation in air conditioning equipment and household appliances;

4.Grain drying and selection of induced draft fans, hot air stove drying equipment for plant and animal husbandry in greenhouses;, wind tunnel air source and air cushioning and propulsion of hovercraft, etc.

How to Solve the Noise Problem of the Fan?(2021年11月24日)

wheecoolingfan — 2021-11-24T17:41:30+0900

https://www.wheecoolingfan.com/products/miniature-fans-blowers/

Dongguan Wanhang Electronics Technology Co., Ltd., a leading motor cooling fan manufacturer in China, is founded in 2012. It covers an area of 5,000 square meters. As a cooling fan supplier, we are supported by our own professional R&D team and possess rich experience in the field of heat dissipation.

The noise of the electronic cooling fan has always been a headache for us. It not only affects the quality of our products, but also brings other work troubles. So how does the noise of the electronic cooling fan come about? How can the noise of the electronic cooling fan be reduced? Now we teach you how to subtly reduce the noise of electronic cooling fans.

Ⅰ. Analysis of the cause of the noise of the electronic cooling fan

1. Is the fan fixed firmly?

If the fasteners cannot be closely integrated with the equipment, the vibration generated when the electronic cooling fan is running at a high speed will cause a lot of noise due to repeated collisions between the fixed plate and the fan.

2. Is there a lot of dust in the environment where the fan is used?
If dust is infiltrated into the shaft of the fan, when the fan blade rotates, the noise will increase due to the increased friction coefficient.

3. Is the temperature of the fan environment higher than 75℃?
If you originally purchased a fan with oil-containing bearings, and the fan's ambient temperature is higher than 75℃ for a long time, then within three months, the oil in the bearing of the cooling fan accessories will be dried and evaporated, and the friction coefficient will increase due to loss of lubrication, then the noise of the fan will be very loud, the fan blades even stop rotating.

Ⅱ. How to solve the noise problem of electronic cooling fans?

1. Add a plastic or rubber gasket between the fan and the fixed plate, which is tightly combined and buffers the vibration of the fan during operation.

2. Dust problem
Add a dust-proof net to the part of the electronic cooling fan that is exposed outside the box. There are currently two types of dust-proof nets to choose from: plastic three-in-one dust-proof nets and metal dust-proof nets. It is recommended to use a metal dust-proof net, which can not only prevent dust, but also provide strong protection against accidental insertion of foreign objects, especially when the temperature is high, the metal dust-proof net will not be deformed. All dust-proof nets must regularly clean the dust and foreign objects on them to avoid blocking the air outlet or inlet of the fan. Especially, miniature fans for electronics need to pay much attention to the dust problem.

3. High temperature problem
Generally speaking, oil-bearing fans are used for operating temperatures of 0-75℃; dual-ball bearing fans are used between 75-130℃ or -30-0℃. Generally speaking, oil-containing fans are less noisy than double ball fans and are economical and cheaper. The double ball fan has a larger air volume than an oil-contained fan and has a longer service life.

When we buy an electronic cooling fan, we must listen to the noise of the electronic cooling fan. If it is too large, then it is recommended that you do not buy it. Of course, the noise of the electronic cooling fan is not necessarily a fan quality problem, but it may also be a cooling fan accessory. The shaft lubrication effect is not good, or the electronic cooling fan is not installed properly. If this is the case, we reposition the fan or add some lubricant to the fan shaft to ensure a good lubrication effect.

The Relationship Between Cooling Fan Speed and Air Volume(2021年11月24日)

wheecoolingfan — 2021-11-24T17:41:02+0900

https://www.wheecoolingfan.com/products/miniature-fans-blowers/

1. Air volume of electronic cooling fan
Air volume refers to the total volume of air discharged or taken in by the electronic cooling fan per minute. If it is calculated in cubic feet, the air volume unit is CFM; if it is calculated in cubic meters, it is CMM. The air volume unit often used by electronic cooling fans is CFM (about 0.028 cubic meters per minute).

Air volume is the most important indicator to measure the heat dissipation capacity of an electronic cooling fan. Obviously, the higher the air volume, the higher the heat dissipation capacity of the electronic cooling fan. This is because the heat capacity ratio of the air is constant, and the greater the air volume, that is, the more air per unit time can take away more heat. Of course, the heat dissipation effect is related to the way the wind flows under the same air volume.

2. Electronic cooling fan speed
The speed of the electronic cooling fan refers to the number of times the fan blade rotates per minute, and the unit is rpm. The fan speed is determined by the number of turns of the coil in the motor, the operating voltage, the number of fan blades, the inclination angle, the height, the diameter and the bearing system. Speed and fan quality are not necessarily related that a micro cooling fan can have a quick speed as well as a high quality. The speed of the fan can be measured by the internal speed signal or externally.

As the application situation and the ambient temperature change, fans with different speeds are sometimes required to meet the demand. We have introduced a universal cooling fan that can adjust the fan speed, which is divided into manual and automatic.

The main function of manual adjustment is to allow users to use low speed in winter to get low noise, and to use high speed in summer to get good heat dissipation. Automatic temperature control radiators generally have a temperature control sensor, which can automatically control the fan speed according to the current working temperature - the higher the temperature, the higher the speed, and the lower the temperature, the lower the speed - to achieve a dynamic balance, thereby maintaining an optimal combination point of wind noise and the heat dissipation.

Why Choose an Axial Fan?(2021年11月24日)

wheecoolingfan — 2021-11-24T17:40:29+0900

https://www.wheecoolingfan.com/products/axial-fans/

1. What are axial fans?
Axial fans are very versatile, that is, the airflow in the same direction as the axis of the blades, such as electric fans and external fans of air conditioners are fans that operate in axial flow. It is called "axial flow" because the gas flows parallel to the fan axis. Axial fans are usually used on occasions with higher flow requirements and lower pressure requirements. The axial fan fixes the position and moves the air. The axial flow fan is mainly composed of the fan impeller and the casing. The structure is simple but the data requirements are very high.

Among the air supply methods of industrial cooling fans, axial fans are the most widely used because of their comprehensive heat dissipation effect and low cost. The axial fans design generally adopts a downward blowing air supply method, and there is also a form of turning the direction of the axial flow fan into an upward suction form.

The difference between the two air supply methods lies in the different airflow forms. Turbulent flow is generated when blowing air, and the wind pressure is high, but it is susceptible to resistance loss; when the air is exhausted, laminar flow is generated, with low wind pressure but stable airflow. In theory, the heat transfer efficiency of turbulent flow is much greater than that of laminar flow, so it has become the mainstream design form of industrial cooling fans for industrial cooling fan manufacturers. But the movement of the airflow is also directly related to the heat sink. For example, in some heat sink designs, because the fins are too tight, the airflow is greatly obstructed by the heat sink. At this time, the air extraction method will have a better effect. Although there are many axial fan applications in industrial cooling fans, they also have inherent defects. The axial flow fan is blocked by the position of the motor, and the airflow cannot pass through the middle of the blowing area smoothly. This is called the "dead zone". On a typical heat sink, it is precisely the middle fin that has the highest temperature. Due to this contradiction, when an axial fan is used, the heat dissipation effect of the heat sink is insufficient.

2. Axial fan applications
An axial fan is a fan whose blades push air to flow in the same direction as the shaft when it is working. Generally speaking, large-scale axial fans are mainly suitable for the exhaust of dust, gravel ground, etc.; medium-sized axial fans are mainly suitable for indoor ventilation and heat exhaust, such as granaries; small axial fans are mainly suitable for Ventilation and heat dissipation of mechanical equipment, such as electrical cabinets. It has a simple structure, large air volume, is suitable for general application and has a wide range of uses.

How to Choose a Good Cooling Fan(2021年08月10日)

wheecoolingfan — 2021-08-06T16:10:28+0900

https://www.wheecoolingfan.com/

1. Choose DC cooling fans in terms of the brand
Choosing a fan with a good brand means choosing quality, which is an important guarantee for the quality of the fan.

2. Choose DC cooling fans in terms of the appearance
From the external surface, it should be relatively thick and the color is relatively pure. There is no burr on the edge of the frame blade. According to the thickness of the fan blade, there is not too much deformation when the outer frame is held by hand.

3. Choose DC cooling fans in terms of the bearing
Because the bearing is divided into ball bearing and oil bearing. The ball bearing has long service life, low noise, but high price. The service life of oil-bearing is 1 / 3 shorter than that of ball bearing and some noise may occur when it is used for more than one year, but its price is cheap. The service life of the bearings (except the oil bearing) in the new products promoted by various manufacturers will not exceed that of the ball bearing, and there will be noise after used for some time in the future.

4. Choose after the DC cooling fans operate normally
After the fan runs normally:

a. Only the wind noise should be heard. If there are other noise, it means that the quality is not very good. If the speed of the fan with the thickness of 7 cm does not exceed 3500RPM while the wind is loud, the quality of the DC cooling fans is too poor.

b. Grasp the fan by hand and feel its vibration. After changing the angle, if the hand feels the same vibration, it shows that the vibration of the fan is very good. If there is vibration, it may cause co-vibration on the chassis. In the past, some people made a loud noise when they started the machine. Actually, it was mainly caused by the vibration when the fan started.

c. Stop the fan from rotating (don't break the fan blade) for about one minute. Touch the center of the fan blade to feel the temperature. If the temperature is high, it is unqualified. This can prevent the fan from being burned when it is stuck and causing fire.

5. Check the parameters of DC cooling fans on the outer package
Now as a leading motor cooling fan supplier, WHEE provides the following two parameters for your reference: the speed does not exceed 3500RPM in the thickness of 7 cm and 8 cm, without other functions of the parameters: starting voltage: less than 7V current: operating current less than 250mA (that it greater than 250mA means that the product is not qualified)

In the above five points, 2, 4 and 5 are the basic indicators of fans. I hope you can make good use of them in your purchase.

The DC cooling fan china produced by Dongguan Wanhang Electronic Technology Co., Ltd., the cooling fan factory, are moisture-proof, waterproof, and has passed strict inspection before leaving the factory, including high pressure resistance, damp heat resistance, low temperature resistance, high temperature resistance, impact resistance, life test, etc. Please feel free to use it!

How to Choose a Good Cooling Fan(2021年08月09日)

wheecoolingfan — 2021-08-06T16:10:02+0900

https://www.wheecoolingfan.com/

1. Choose DC cooling fans in terms of the brand
Choosing a fan with a good brand means choosing quality, which is an important guarantee for the quality of the fan.

4. Choose after the DC cooling fans operate normally
After the fan runs normally:

In the above five points, 2, 4 and 5 are the basic indicators of fans. I hope you can make good use of them in your purchase.

The DC cooling fans produced by Dongguan Wanhang Electronic Technology Co., Ltd. are moisture-proof, waterproof, and has passed strict inspection before leaving the factory, including high pressure resistance, damp heat resistance, low temperature resistance, high temperature resistance, impact resistance, life test, etc. In addition, W.H.E.E., as a cooling fan supplier, has launched several electric fans, such as axial flow fan, to ensure large air flow and greatly reduce the wind noise when the fan rotates. It can be used as an ordinary electric fan in summer and an air circulation fan in winter, which greatly stimulates the market demand and injects new vitality into the market of electric fan product. Please feel free to use it!

The Higher the Speed of the Cooling Fan, the Greater the Air Volume?(2021年08月08日)

wheecoolingfan — 2021-08-06T16:09:39+0900

https://www.wheecoolingfan.com/products/accessories/

Recently, we discovered that many friends ask how much speed is when choosing an electronic cooling fan? What is the air volume? And they believe that the higher the speed, the better, in fact, this is a misunderstanding.

1. The fast speed of the electronic cooling fan means that the air volume taken away by the fan is larger
Regardless of other factors, a fast-speed electronic cooling fan has a better heat dissipation effect (provided that it is the same or similar fan), but its disadvantage is also very obvious, that is, it will shorten the service life of the electronic cooling fan.
Of course, it is also related to the bearings of the cooling fan accessories. If it is an oil-containing bearing, too high speed may not be a good thing, while the ball can reach a higher speed.

2. In actual use, the wind speed of the electronic cooling fan of the same size is inversely proportional to the wind pressure
The faster the wind speed, the greater the air volume, and the lower the wind pressure, so that the wind cannot completely blow to the bottom of the radiator, which will cause heat to accumulate on the bottom of the radiator and weaken the heat dissipation effect.

Therefore, if it is necessary to increase the air volume and air pressure of the electronic cooling fan at the same time, the only way is to increase the size of the fan. However, increasing the size of the fan will cause a series of problems, such as excessive weight. Therefore, in the end, you must find a balance based on your product usage.

It is not to say that blindly pursuing high speed is good, but to choose according to your product needs. Our company, as one of the industrial cooling fan manufacturers, specializes in producing all kinds of cooling fans,such as DC brushless cooling fan, with mature technology and many years of industry experience, to make the type of fan you need most. If necessary, please consult W.H.E.E.

Application of Brushless DC Motor in Electric Fan(2021年08月07日)

wheecoolingfan — 2021-08-06T16:09:17+0900

https://www.wheecoolingfan.com/

1. Advantages of DC brushless cooling fans
At present, in the field of household appliances, more and more electrical manufacturers begin to improve the functions of products from the perspective of "energy saving and power saving", and the electric fan is one of them. Compared with the previous electric fans equipped with AC motor, the DC brushless cooling fan with smaller power consumption has been recognized by the market as soon as it comes into the market. Moreover, the small power consumption of DC brushless cooling fan makes the plug-in electric fan which gets rid of the trouble of cord also start to emerge.

In addition, in addition to energy saving, DC brushless cooling fan with its superior control performance has been highly loved by designers. Compared with the previous AC motor with only 3-gear constant speed switching, the DC brushless cooling fan can set the gear speed at will, which not only realizes multi-gear wind speed adjustment, but also realizes complex natural wind mode. With this function, users will not feel uncomfortable when facing the fan for a long time. In addition, the small size and light weight of DC brushless cooling fan make the style of electric fan become fashionable and improve the quality of life.

Taking an electric fan with the module of motor + fan + variable blade sold in the motor cooling fan supplier as an example, the product adopts a new design concept of variable blade, and adds a new function of switching between decentralized and centralized blowing modes for the electric fan, realizing the market demand for improving the efficiency of the electric fan.

2. DC brushless cooling fan in W.H.E.E.
In addition, W.H.E.E., as a cooling fan supplier, has launched several electric fans, such as dc cooling fans, to ensure large air flow and greatly reduce the wind noise when the fan rotates. It can be used as an ordinary electric fan in summer and an air circulation fan in winter, which greatly stimulates the market demand and injects new vitality into the market of electric fan product.

Why Choose an Axial Fan?(2021年08月27日)

wheecoolingfan — 2021-08-06T16:08:43+0900

https://www.wheecoolingfan.com/dc-cooling-fans-solutions.html

1. What are axial fans?
Axial fans are very versatile, that is, the airflow in the same direction as the axis of the blades, such as electric fans and external fans of air conditioners are fans that operate in axial flow. It is called "axial flow" because the gas flows parallel to the fan axis. Axial fans are usually used in occasions with higher flow requirements and lower pressure requirements. The axial fan fixes the position and moves the air. The axial flow fan is mainly composed of the fan impeller and the casing. The structure is simple but the data requirements are very high.

The difference between the two air supply methods lies in the different airflow forms. Turbulent flow is generated when blowing air, and the wind pressure is high, but it is susceptible to resistance loss; when the air is exhausted, laminar flow is generated, with low wind pressure but stable airflow. In theory, the heat transfer efficiency of turbulent flow is much greater than that of laminar flow, so it has become the mainstream design form of industrial cooling fans. But the movement of the airflow is also directly related to the heat sink. For example, in some heat sink designs, because the fins are too tight, the airflow is greatly obstructed by the heat sink. At this time, the air extraction method will have a better effect. Although there are many axial fan applications in industrial cooling fans, they also have inherent defects. The axial flow fan is blocked by the position of the motor, and the airflow cannot pass through the middle of the blowing area smoothly. This is called the "dead zone". On a typical heat sink, it is precisely the middle fin that has the highest temperature. Due to this contradiction, when an axial fan is used, the heat dissipation effect of the heat sink is insufficient.

2. Axial fan applications
An axial fan is a fan whose blades push air to flow in the same direction as the shaft when it is working. Generally speaking, large-scale axial fans are mainly suitable for the exhaust of dust, gravel ground, etc.; medium-sized axial fans are mainly suitable for indoor ventilation and heat exhaust, such as granaries; small axial fans are mainly suitable for Ventilation and heat dissipation of mechanical equipment, such as electrical cabinets. It has simple structure, large air volume, suitable for general application and has a wide range of uses.

WHEE is a leading motor cooling fan supplier in China, focusing on DC brushless cooling fans/cooler and modular design, on products including industrial cooling fan, universal cooling fan, centrifugal blowers, frameless fans, micro fans, CPU cooler, and thermal module. Cooperative manufacturer of systematic OEM/ODM products.

Uncommon Knowledge About Cooling Fans(2021年08月19日)

wheecoolingfan — 2021-08-06T16:08:19+0900

https://www.wheecoolingfan.com/

1. Is the number of blades of the electronic cooling fan odd or even?

The blades of electronic cooling fans have not been noticed by many friends. Carefully count your fan blades to see if they are odd or even. In the past, even-numbered blades are often present in electronic cooling fans, and the blades are opposed to each other. This kind of fan has been used for a long time. For example, the blades are worn or accumulated too much dust, and the center of gravity is easily shifted. As a result, the electronic cooling fan will suffer from increased noise and poor rotation.

Current electronic cooling fans basically use odd-numbered blades, and their center of gravity is determined by all blades at the same time. Even if individual blades are worn or dusted, the deviation of the center of gravity will be relatively small, and of course the noise will be much smaller. Therefore, it is recommended that when buying an electronic cooling fan, you might as well count the number of blades first, and try to choose a fan with an odd number of blades.

At the same time, the shape of electronic cooling fan blades is also very particular. Generally speaking, high-speed fans should choose curved and sweeping blades because they are more suitable for high-speed rotation and have lower noise. Straight fan blades are more suitable for low-speed fans, and their blowing covers a large area, which is especially suitable for use on the top of the case, notebook stand, etc.

2. Which to choose, ball-bearing or oil-containing cooling fan accessories?
There are two kinds of bearings for cooling fan accessories, one is ball bearing, the other is oil bearing, and the ball bearing has single ball and double ball, its advantage is longer service life and stability. While oil-impregnated bearings are quieter, but due to the influence of the environment, not all products are suitable for oil-impregnated bearings. Everyone can follow up on their own machine selection when purchasing.
3. Is the electronic cooling fan blowing from the front or from the side?

Electronic cooling fans are available in box models with frontal air outlets, blowers with side air outlets, and disc models with full air outlets. Follow your machine requirements from the motor cooling fan supplier and choose the right air outlet.

4. Electronic cooling fans and more fans = more money
The use of multiple fans in the processor and graphics card radiator is a development trend, but many small partners probably did not expect that if used improperly, multiple fans may not greatly improve the heat dissipation capacity, but may cause particularly obvious problems such as vibration and noise. On some multi-fan graphics cards, we can see electronic cooling fans with reverse rotation or different sizes. They can avoid resonance problems and reduce vibration and noise.

5. Is the electronic cooling fan 3-pin or 4-pin?
The current PC fan only has two power interfaces, which are designed with 3-pin and 4-pin, respectively. The extra pins of the 4-pin interface are mainly used to transmit some control signals, such as judging whether an electronic cooling fan is installed on this interface to transmit the fan speed information and control signals. The independent detection and control capabilities of the 4-pin interface fan are more accurate and safer than the 3-pin interface. Therefore, if the price is not much different, it is recommended that you choose the 4-pin interface electronic cooling fan product.

WHEE is a leading motor cooling fan factory in China, focusing on DC brushless cooling fan/cooler and modular design, on products including industrial cooling fan, universal cooling fan, centrifugal blowers, frameless fans, micro fans, CPU cooler, and thermal module. Cooperative manufacturer of systematic OEM/ODM products.

The Relationship Between Cooling Fan Speed and Air Volume(2021年08月13日)

wheecoolingfan — 2021-08-06T16:07:52+0900

https://www.wheecoolingfan.com/

1. Air volume of electronic cooling fan

Air volume refers to the total volume of air discharged or taken in by the electronic cooling fan per minute. If it is calculated in cubic feet, the air volume unit is CFM; if it is calculated in cubic meters, it is CMM. The air volume unit often used by electronic cooling fans is CFM (about 0.028 cubic meters per minute).

2. Electronic cooling fan speed

The speed of the electronic cooling fan refers to the number of times the fan blade rotates per minute, and the unit is rpm. The fan speed is determined by the number of turns of the coil in the motor, the operating voltage, the number of fan blades, the inclination angle, the height, the diameter and the bearing system. Speed and fan quality are not necessarily related. The speed of the fan can be measured by the internal speed signal or externally.

WHEE is a leading motor cooling fan manufacturer in China, focusing on DC brushless motor cooling fans/cooler and modular design, on products including industrial cooling fan, universal cooling fan, dc cooling fans, centrifugal blowers, frameless fans, micro fans, CPU cooler, and thermal module. Cooperative manufacturer of systematic OEM/ODM products.

Solution of Cooling Fan Noise(2021年08月06日)

wheecoolingfan — 2021-08-06T16:07:22+0900

https://www.wheecoolingfan.com/solution-of-cooling-fan-noise.html

The noise of miniature cooling fans is a very vague concept. Here, our experienced heat dissipation industry technicians will explain to you the classification of miniature cooling fans. There are two types of noise:
Ⅰ. Mechanical noise of miniature fans

To solve the mechanical noise of miniature fans, it is necessary to start with the material and assembly of the fan. The following reasons will cause the fan to be loud:

1. The induction IC touches the magnetic stripe of the fan blade of the miniature fan and produces a frictional sound.

2. The motor component of miniature fans - the coil is ground to the fan blade.

3. The size of the assembly structure is incorrect, and the bearing wears the oil ring.

4. The material problem of the bearing and the shaft core will cause noise.

Ⅱ. The wind of miniature fans

Solving the fan wind noise of miniature fans is in the design stage: mainly in the angle, shape, and resistance of the fan blades. There are some fine work, dynamics, mechanics, electronics and other fields designed in it. Currently in mainland China, there are no experts and supporting equipment in this field. Most of them are modeled after the fan shape of Japan or Taiwan. One thing that needs to be added is that the assembly problem of miniature fans to the micro projector will cause noise.

The main business of DONGGUAN WANHANG ELECTRONICS TECHNOLOGY CO LTD focuses on the modular design of miniature fans, dc motor cooling fan and mini centrifugal fan, covering different products such as computers, power supplies, communications, household appliances, auto parts and so on. If necessary, please consult us.

Why Add Cooling Fans to Computers?(2021年)

wheecoolingfan — 2021-06-08T18:03:11+0900

https://www.wheecoolingfan.com/products/cpu-cooler.html

1. What kind of motor does the DC cooling fan use?

Experts in cooling fans know that as long as we disassemble the motor of the DC cooling fan, we can see that the DC cooling fans use a variable frequency motor, which can be identified from the position of the coil. The frequency conversion motor control circuit board, the control chip will integrate the DSP function and the driving device, simplifying the circuit structure. By programming the control chip, the motor speed can be changed.

2. The necessity of computer cooling fan

Do you have such troubles? If the computer is used for a long time, the computer will respond slowly and the network will become stuck, but there is no problem in querying the network. So where is the problem? In fact, it is a computer cooling fan problem. If the computer is running for a long time, the temperature will rise, especially in summer, when the temperature is too high, the interface will recognize fatigue and slow down. To solve this problem, add a DC cooling fan to the computer.

DONGGUAN WANHANG ELECTRONICS TECHNOLOGY CO LTD has maintained stable business development since its establishment. The main business is concentrated in the modular design of DC cooling fans, covering different products such as computers, power supplies, communications, household appliances, and auto parts. We adopt systematic OEM/ODM collaborative manufacturing. The company has passed and strictly followed the ISO9001, IATF16949 system management, and its products have obtained international certifications such as SGS/UL/CE. If necessary, please consult us.

Dongguan Wanhang Electronics Technology Co, Ltd. is a professional cooling fan supplier. We provide DC Micro Fans, DC Micro Blowers, dc motor cooler and so on. Want to know about axial fan application? Please contact us.

How Does a Greenhand Choose PC Cooler? It's So Simple!(2021年)

wheecoolingfan — 2021-06-08T18:02:45+0900

https://www.wheecoolingfan.com/

The better the performance of the CPU, the more fluent our computer will become, but it will also produce more heat. The PC cooler is an important part to help the CPU discharge heat.

When we are playing games and using large-scale 3D programs, the CPU with full power on will overheat, resulting in frequency reduction, frame dropping and blocking, which greatly affects our daily computer using experience. Generally, when the temperature exceeds the specified temperature, the frequency will be automatically reduced. Then how can a green hand choose an easy-to-use computer radiator?

1. Look at the heat pipe first
As the name suggests, a heat pipe is a channel for conducting heat. Generally speaking, the more heat pipes are, the thicker the heat pipe should be (the mainstream heat pipe is generally 6 mm) and the better the heat dissipation effect is. However, the price will also become higher, and you can choose it according to their own needs.

2. Check the material of heat pipe
In addition to the number and thickness of heat pipes, the heat pipes of the radiator are also divided into nickel-free and nickel-plated heat pipes. The difference between the two lies in price and life span. The PC cooler without nickel plating has no coating to protect the copper tube, so it is more cost-effective.

3. Then check the heat sink base
The heat sink base will be in direct contact with our CPU and transmit the heat generated by the CPU to the radiator. Therefore, the heat sink base needs to fit the CPU tightly, which requires high smoothness and flatness.

4. Check the heat sink fin
The function of heat sink fin is to dissipate the heat generated by CPU to the air with the help of fan. It is the last step of the whole heat dissipation process. With the premise that the fan speed is fast enough, the larger the fins, the better.

In addition to the above tips, you can also choose a trustworthy PC cooler supplier or a cooling fan manufacturer for quality product purchase.

If you have any questions about the above information, please feel free to contact us. We DONGGUAN WANHANG ELECTRONICS TECHNOLOGY CO LTD will be glad to help you.

Dongguan Wanhang Electronics Technology Co, Ltd. is a professional cooling fan supplier. We provide DC Micro Fans, DC Micro Blowers, universal cooling fan and so on. Want to know about centrifugal fan applications? Please contact us.

Why Choose Axial Flow Fan?(2021年)

wheecoolingfan — 2021-06-08T18:02:20+0900

https://www.wheecoolingfan.com/products/axial-fans/

The function of the cooling fan is to make the airflow into the radiator at the rated speed through the diversion, and the heat exchange between the air and the radiator is generated to extract the heat, so as to achieve the purpose of heat convection. In the air supply mode of an industrial cooling fan, the axial fan is widely used and favored by the motor cooling fan supplier because of its good comprehensive cooling effect and low cost. The axial cooling fan generally adopts the air supply mode of downward blowing, and it also reverses the direction of the axial fan into the form of upward suction.

The difference between the two ways of air supply lies in the different forms of airflow. When blowing, turbulent flow is produced, and the air pressure is large while it is easy to suffer resistance loss; when exhausting, laminar flow is produced, and the air pressure is small while the airflow is stable. Theoretically, the heat transfer efficiency of turbulent flow is much higher than that of laminar flow, so it has become the mainstream design form of the industrial cooling fan. But the movement of airflow is also directly related to the radiator. For example, in some designs, because the fins are too tight, the airflow is greatly hindered by the fins. At this time, the extracting method will give a better effect.

Although an axial cooling fan is widely used in industrial cooling fan, it also has its inherent defects. Blocked by the position of the motor, so the airflow of the axial fan cannot smoothly pass through the middle of the blast area, which is called a "dead zone". In a typical radiator, the temperature of the middle fin is the highest. Because of this contradiction, when the axial fan is used, the heat dissipation effect of radiator is not enough.

Dongguan Wanhang Electronics Technology Co, Ltd. is one of professional centrifugal fan suppliers. We provide DC Micro Fans, DC Micro Blowers, brushless cooling fan and so on. Want to know more? Please contact us.

Fan Bearing, a Key Component Affecting the Reliability of Cooling Fans(2021年)

wheecoolingfan — 2021-06-08T18:01:55+0900

https://www.wheecoolingfan.com/products/accessories/

1. The important part of cooling fan accessories
Accessories are very important for cooling fans. Although water cooling and liquid cooling are very effective ways of heat dissipation, air cooling is the cheapest one. But compared with the water-cooled radiator, the biggest problem of air-cooled radiator is the noise produced by the fan when it works. Of course, there are many factors that determine the noise level of the fan, including speed, size, dynamic balance, operating environment and so on. One of the most important factors is the type of bearing of the fan.

When you know something about these bearings, you will know why some fans cost 10 yuan, while some cost hundreds or even hundreds of yuan. In addition, it can also provide valuable reference for you when purchasing CPU fans or chassis fans. As a leading motor cooling fan supplier in China, WHEE hopes this article can be helpful for you when purchasing fans.

2. Notes about the cooling fan bearing
As the important cooling fan accessories, we all know what bearing is. In mechanical engineering, there are many types of bearings, but in fact, there are only a few types that can be used in radiator fan and chassis fan: sleeve bearing with sliding friction (oil bearing) and ball bearing with rolling friction and hybrid bearings of above two kinds of ones.

In recent years, major radiator manufacturers have introduced new technologies in bearing, such as maglev bearing, water wave bearing, magnetic core bearing, rifle bearing and so on.

We, DONGGUAN WANHANG ELECTRONICS TECHNOLOGY CO LTD will provide you with professional guidance on how to select the bearing as a key accessory of cooling fan. If you have any questions, please call us.

Dongguan Wanhang Electronics Technology Co, Ltd. is one of professional centrifugal fan manufacturers. We provide DC Micro Fans, DC Micro Blowers, dc brushless cooling fan and so on. Want to know more? Please contact us.

How Does a Car's Electronic Cooling Fan Work?(2021年)

wheecoolingfan — 2021-06-08T18:01:28+0900

https://www.wheecoolingfan.com/products/

Automobile is a highly integrated mobile transportation tool. The long-term operation of the vehicle will cause a sharp increase in the heat inside the machine. If it cannot be effectively eliminated, there will be serious and irreversible consequences, which will directly affect the normal use of the vehicle. Therefore, it is necessary to equip the vehicle with professional and reliable automobile cooling fan. How to choose durable automotive fan with high quality? The motor cooling fan supplier can provide professional performance and reliable quality. It is worthy of consideration.

The water temperature sensor of the electronic cooling fan is a negative temperature coefficient sensor, that is to say, the higher the temperature is, the lower the resistance will be. We can do a small experiment to verify it. Connect all aspects of the water temperature sensor, adjust to the resistance gear, put the water temperature sensor in a cup, and then continuously add hot water to the cup. During the process, the resistance value decreases with the increase of water temperature.

As a kind of automobile cooling fan, the purpose of automobile electronic cooling fan is to control the water temperature of the engine to a normal level. It is composed of sensor, electronic fan and chip. The water temperature generally exceeds 90 degrees. When the sensor acts, the electronic fan turns on to reduce the water temperature. When the temperature is lower in winter, the water temperature is also lower. The electronic fan does not turn on to protect the engine from supercooling and overheating. The automobile electronic cooling fan is controlled by the temperature controller. When the water temperature rises to the upper limit, the temperature controller turns on the power and the fan starts to work. When the water temperature drops to the lower limit, the temperature controller turns off the power and the fan stops working.

The speed of the automotive electronic cooling fan is "only" controlled by the thermal sensitivity switch (F18), which has two gears and is installed on the water tank to detect the water temperature. It sends two signals to J293 which then turns on different open circuits to control the high and low speed of the electronic fan. When the air conditioner is turned on, both fans should rotate. However, it should be noted that air conditioner and electronic fan are two relatively independent systems controlled by two computers, named J301 (air conditioner) and J293 (electronic fan). J301 just gives a signal to J293 to force two electronic fans to start rotation.

When the motor of electric fan works, the current is large and the requirements for the wires used are high. When the electric fan works, it rotates at a high speed and the requirements for the manufacturing process are high.

Dongguan Wanhang Electronics Technology Co, Ltd. is one of professional axial flow fan manufacturers. We provide DC Micro Fans, DC Micro Blowers, cooling fan china and so on. Want to know more? Please contact us.

Do You Know How a DC Fan Works?(2021年)

wheecoolingfan — 2021-06-08T18:00:57+0900

https://www.wheecoolingfan.com/products/

Ⅰ. What is DC fan?
DC fan, as the name suggests, is a cooling fan that converts electric energy into electromagnetic energy through DC voltage and electromagnetic induction, then into mechanical energy, and finally into kinetic energy, so as to make the fan blades rotate.

Conventional dc fan is mainly composed of rotor, stator, motor and frame. The dc motor consists of permanent magnet rotor, multistage winding stator, position sensor and electronic commutation drive control circuit. Rotor is composed of: motor shell + permanent magnetic strip + shaft core + fan blade. Stator is composed of: enameled wire + plastic coated silicon steel sheet + bearing + hall induction detection + drive circuit board + shaft.

The core components of dc fan are stator and rotor. According to the Ampere's right-hand rule, we know that when electric current passes through a conductor, there will be a magnetic field around it. If the conductor is placed in another fixed magnetic field, there will be a suction or repulsion force, which will cause the object to move. The inner part of the fan blade of the dc fan is filled with a magnetic rubber magnet. Around the silicon steel sheet, two groups of coils are wound separately on the axis, and the hall induction module is used as a synchronous detection device to control a group of circuits. The circuit makes the two groups of coils around the axis work in turn, so that the silicon steel sheet produces different magnetic poles, which generate an attractive and repulsive force with the rubber magnet. When the repulsion force is greater than the static friction force of the fan, the fan blade rotates naturally.

Because of the synchronous signal provided by the hall induction module, the fan blade can operate continuously, and the direction of operation can be determined according to Fleming's right-hand rule. This is how the dc fan works. While WHEE is a leading motor cooling fan supplier in China, focusing on DC brushless motor cooling fans/cooler and modular design, on products including industrial cooling fan, universal cooling fan, DC axial fans, centrifugal blowers, frameless fans, micro fans, CPU cooler, and thermal module.

Ⅱ. Difference between DC fan and AC fan
Cooling fans are mainly dc cooling fans and ac cooling fans. The differences between the two kinds of fans are mainly shown in the following three points:

1. The principle is different:
The power supply of AC cooling fan is AC, and the voltage of power supply will change sinusoidally. However, the voltage of power supply of DC cooling fans is fixed, which must rely on the circuit control, so that the two groups of coils work in turn to produce different magnetic fields. Because the power frequency of AC fan is fixed, the change speed of magnetic pole produced by silicon steel sheet is determined by the power frequency. The higher the frequency is, the faster the switching speed of magnetic field will be. Theoretically, the speed will be faster, just like the principle that the more the number of poles of dc fan is, the faster the speed will be. However, the frequency should not be too fast, or it will cause difficulties in activation. We use dc fans on the computer radiator. Generally, a good cooling fan mainly focuses on the air flow, rotation speed, noise, service life, and the type of blade bearing.

2. The air flow is different:
For cooling fans of the same size and specification, the motor volume of AC fan is large and the blades are short, while that of dc fan is just the opposite, and the blades are long and the motor is small, so the air flow per unit area is more, the air flow is larger and the heat dissipation capacity is better.

3. The materials are different:
The outer frame of AC fan is generally aluminum frame, while that of dc fan is plastic frame. Therefore, the capacity of temperature resistance is different. The choice of dc fan or AC fan depends on which product is more suitable for its own product with the same cost.

Dongguan Wanhang Electronics Technology Co, Ltd. is a professional cooling fan manufacturer. We provide DC Micro Fans, DC Micro Blowers, cooling fan china and so on. Want to know more? Please contact us.

As a Centrifugal Fan Manufacturer, We Deserve Your Selection(2021年)

wheecoolingfan — 2021-06-08T18:00:24+0900

https://www.wheecoolingfan.com/products/centrifugal-fans-blowers/

With the increasing demand of centrifugal blower, it has been widely used in water treatment, smelting blast furnace, coal washing plant, mine flotation, chemical gasification, vacuum and other fields, mainly because of its beautiful appearance, good stability and convenient maintenance.

There are so many centrifugal blower fan manufacturers on the market, why do many users choose us?

Dongguan Wanhang Electronic Technology Co., Ltd., as a leading motor cooling fan supplier in China founded in 2012, is a brick-and-mortar enterprise with strong professional independent R & D team and many years of experience in the field of heat radiation. Since its establishment, the Company adheres to the stable development of business and gives priority to customer service. In addition to professional degree, the Company pays more attention to the production quality of products and resolutely does not sell out any defective products. It is recognized and appreciated in the customer satisfaction survey.

We not only want to be a centrifugal fan manufacturer, but also a manufacturer for consumers. As Mark Ma, the leader of Alibaba Group, said, "I didn't make Alipay for money, but to meet the needs of the masses". Although we are not as selfless as Mark Ma, we want to follow his steps and forge ahead. Although we pursue economic profit, we will consider more for consumers, and consumer satisfaction is our pursuit. Therefore, we will strive to develop new technologies, improve product efficiency, and improve our production efficiency.

We think from the perspective of consumers. In our view, consumers are our real God, and their satisfaction is the reward for our work. So in terms of service, we are also making every efforts to do perfect work.

Surely, many consumers may be wary of online sales, but please don't worry. We have been in this industry for many years and we assure you with our reputation accumulated over the years that our products will never let you down. If you need centrifugal fan, please contact us.

Dongguan Wanhang Electronics Technology Co, Ltd. is a professional cooling fan supplier. We provide DC Micro Fans, DC Micro Blowers, mini centrifugal blower and so on. Want to know more? Please contact us.

Knowledge about Low Noise DC Cooling Fan(2021年)

wheecoolingfan — 2021-06-08T17:59:57+0900

https://www.wheecoolingfan.com/products/

Air pressure and airflow of low-noise dc cooling fan are two relative concepts. Generally speaking, it is necessary to sacrifice some air pressure for larger airflow in the consideration of cost reduction when manufacturing dc cooling fan. If the fan can drive a large amount of airflow while the air pressure is small, the air will not blow to the bottom of the radiator (this is why the cooling effect of some fans is not good while they have high speed and large airflow). On the contrary, large air pressure often means that the airflow is small, and there is not enough cold air for cooling with the radiator, which will also cause a poor cooling effect.

Any type of radiator is basically inseparable from the following three cooling ways, but the focus is different.
1. Heat conduction, heat convection and heat radiation. When matter itself or matter contacts with matter to cool down, the transfer of energy is called heat conduction, which is the most common cooling way. For example, the way that the chassis of CPU radiator directly contacts with the CPU to take away heat belongs to heat conduction.
2. Heat convection: it refers to the heat transfer mode in which the flowing fluid (gas or liquid) takes away the heat. In the cooling system of computer case, the common cooling mode is the forced heat convection mode in which the cooling fan drives away the airflow.

3. Heat radiation: it refers to heat transfer relying on radiation and the most common one is solar radiation in daily life. These three ways of cooling are not isolated. In daily heat transfer, these three ways of heat dissipation occur at the same time and work together.

For example, as to the common CPU air-cooled cooling fan, the CPU radiator is in direct contact with the CPU surface, and then the heat on the CPU surface is transferred to the CPU radiator through heat conduction; the DC cooling fan generates airflow to transfer the heat on the surface of the CPU radiator through heat convection, and the airflow in the chassis also transfers the heat on the surface of the CPU through heat convection; The heat of the air around the case is taken away to the outside of the chassis through heat convection; at the same time, all the parts with high temperature will radiate to the parts with low temperature.

As for the manufacturing of dc cooling fan, Dongguan Wanhang Electronic Technology Co., Ltd. is professional and welcome to buy it!

Dongguan Wanhang Electronics Technology Co, Ltd. is a professional cooling fan factory. We provide DC Micro Fans, DC Micro Blowers, mini centrifugal fan and so on. Want to know more? Please contact us.

How to Choose CPU Fan? Can I Buy Any of Them and Install It?(2021年)

wheecoolingfan — 2021-06-08T17:59:30+0900

https://www.wheecoolingfan.com/products/cpu-cooler.html

1. What is a CPU fan?
CPU fan, also known as cooling fan, is a kind of fan used to cool the CPU. It is provided to the radiator and the chassis and used to quickly transmit the heat of the CPU to the nearby air, so as to play a cooling effect on it. The cooling effect is directly related to the quality of CPU cooling fan and radiating blade. There are many kinds of CPU fans according to the size of installation, type of bearing, number of blades, etc.

As the computer is used for a long time, the noise of CPU fan, graphics card fan, chassis fan, power supply fan and other fans will become larger and larger. Moreover, when the temperature is higher in Summer, the cooling effect of computer hardware will be not very good. Besides, this will also make the fan speeds up and make more noise. Since there are many cpu fan types and cooling fan accessories, how to choose CPU fan? Whether CPU fans are different or mainboard CPU fans are different. How to check the specifications? Today, let's talk about the purchase of CPU fans.

2. What influences the CPU fan types?
First of all, let's define the interface CPU fan types. In fact, there are three indicators involved here:
Firstly, the power interface of CPU fan comes from the mainboard, so it must be related to the mainboard;
Secondly, the CPU fan radiator should fit the CPU, so it must be related to the specification of CPU;
Thirdly: the CPU fan has a certain volume, so it is also related to the specifications of chassis;

As it is easier that the power supply can be standardized, the first indicator can be ignored, and the second indicator and the third indicator are key indicators. In addition, there is also a very important index for the CPU fan, which is the bearing. The common bearings include oil bearing, double ball bearing, single ball bearing, hydraulic bearing and raffle bearing. In addition, there are nano ceramic bearings, magnetic bearings and fluid protection system bearings, but they are relatively expensive and rare in the market.

For different types of fan bearings, there are great differences in noise control. When buying the cooling fan, we can generally get the relevant bearing information from the English letters of its tag. Reading this information is helpful for us to choose the products suitable for our own needs.

Dongguan Wanhang Electronics Technology Co, Ltd. is a professional cooling fan manufacturer. We provide DC Micro Fans, DC Micro Blowers, dc brushless cooling fan and so on. Want to know more? Please contact us.