Want to know what makes an air-cooled refrigerator special? Don't worry, today we're going to focus on a component that can't be ignored: the cooling fan. In fact, cooling fans play a crucial role in air-cooled refrigerators, and they have some compelling special designs and features, so let's take a look.

First of all, the location of the cooling fan deserves attention. They are usually located on the back of the refrigerator and are closely connected to the condenser. The choice of this location is not accidental, as it is able to effectively expel the generated heat, ensuring that the inside of the refrigerator maintains the proper temperature. This design improves the cooling effect while avoiding problems caused by overheating.

Secondly, the design and materials used in the cooling fan are also very special. They usually consist of efficient fan blades and a main air lead. Just like Chungfo's design and production of blades capable of low noise output high air volume, these fan blades are specifically designed to produce a strong airflow to provide sufficient cooling effect. The selection of materials takes into account the impact of long-term operation and low temperature environment on the fan, so that it can work in difficult conditions for more than five years without trouble.

Finally, the cooling fan also has intelligent control and adjustable functions. Some modern air coolers are equipped with intelligent control systems that can automatically adjust according to the temperature and load in the refrigerator. This means that the cooling fan can automatically start and stop as needed to work more efficiently. This feature helps to save energy and extend the life of the fan. The PCB board of the cooling fan produced by us is almost assembled by a professional technical team of workers, so when the customer requires the fan to have a self-starting function, TC temperature control function, RD alarm signal and so on, we can meet. And our company has many models of cooling fans are used in the refrigerator, such as D09232 this model of DC fan is the classic model of refrigerator application, most of the well-known refrigerator factories will use.

In general, the cooling fan in the air-cooled refrigerator has many special features. From the selection of their location, to the choice of design and materials, to the application of intelligent control and adjustable functions, these fans make an important contribution to the performance and effectiveness of the refrigerator. Guangdong Chungfo Electronic Technology Co., Ltd. is dedicated to the equipment cooling needs of various industries, is a professional cooling fan manufacturer. We can provide professional customization of cooling fans according to customer needs. If you have this need, please feel free to contact us.

In the selection of fans, the strength of heat dissipation performance is one of the indispensable considerations. So what are the factors that determine the strength of the fan heat dissipation performance?

There are mainly three points: air volume, wind pressure and heat dissipation structure.

 

Air volume: Air volume refers to the amount of air blown by the cooling fan per unit time, usually expressed in cubic meters per hour (m³/h) or cubic feet per minute (CFM). The larger air volume means that the fan is able to take away more hot air, which provides better heat dissipation.

Our company has a very strong cooling performance of AC brushless cooling fan, first of all, the size of the A17051B fan, which means a larger blade area and a larger wind output, such a design can produce more air flow per unit time, so as to provide greater air volume; In the design of the shape of the fan blade, the feather-shaped fan blade is selected, which can effectively inhale and discharge the air, generate greater thrust, and thus provide higher air volume. In addition, this form of blade flow is large, low noise, which is more in line with the principle of fluid mechanics. Although this fan has no ventilation hole, the reasonable housing design realizes the flow of air and better meets the heat dissipation needs. In general, large size, efficient design fans will usually provide greater air volume. Just like the A17051B, this fan has all the above conditions, so the air volume can be as large as 187.93CFM.

 

 

 

Wind pressure: Wind pressure refers to the ability of the cooling fan to generate wind power, mainly used to overcome resistance and push air through the radiator or cooling structure. The cooling fan needs to overcome the resistance in the radiator to ensure that the air can efficiently pass through the cooling structure, thereby carrying away the heat.

 

Heat dissipation structure: The heat dissipation structure refers to the heat sink or heat dissipation device used in conjunction with the heat dissipation fan. Its design and structure determine how heat is distributed and dissipated in the radiator. In fact, axial flow fans and centrifugal fans can also be used as part of the radiator to increase air flow and enhance the heat dissipation effect.Axial flow fans are relatively large, relatively simple structure design, suitable for products with simple structure and flow path design; The centrifugal fan has relatively large wind pressure, which is suitable for products with relatively complex structural design and flow path design.

 

Therefore, the air volume, wind pressure and heat dissipation structure of the cooling fan are related to each other. A cooling fan with a proper cooling structure can provide a larger air volume and wind pressure, providing better cooling effects for the cooling device. When choosing a cooling fan, these factors need to be considered comprehensively to meet the specific heat dissipation requirements.

Communication equipment is developing rapidly in this era, and many new things related to it emerge in an endless stream. With the emergence of new products and technologies such as mobile communications, Internet of Things, artificial intelligence, and power batteries, as well as their high heat flux density, high power, and ultra-thin characteristics, this also puts forward higher requirements for heat conduction and heat dissipation. . For its usage scenarios, it is particularly important to choose a quiet ventilation fan. So based on these requirements, how do we choose a low-noise cooling fan? 

First of all, we must understand the noise. The noise is caused by the vibration of the fan when it is running. Excessive vibration will affect the stability of 5G terminal equipment. Not only that, but it will also indirectly interfere with device communication, especially when small 5G terminal devices are used indoors, the noise impact is even more serious. The cooling fan with good quiet effect is even more important. While ensuring the cooling effect, choose a fan with low noise as much as possible.

When designing the cooling fan, try to choose the static pressure impeller design. At the same speed, the cooling fan designed with static pressure impeller has a larger air volume and lower noise.

The material of the silent fan is to use PBT frame and fan blades as much as possible, with smooth surface, wear resistance, brittle resistance and good toughness. The bearing system of the fan adopts ball bearings, and the noise level is stable. Unlike oil bearing exhaust fans, the longer the use time, the louder the noise, and the service life is not as good as the ball bearing exhaust fans.

In addition, when adapting to a more intelligent cooling fan with speed regulation, whether it is a communication device or other smart devices, there are no-load and load cycles. The speed-regulation fan can reduce the speed when it is no-load, and the noise value will also be greatly reduced.

If you happen to be looking for high quality cooling fan manufacturers, then we are a good choice. Guangdong Chungfo Electronic Technology Co., Ltd. focuses on the cooling needs of equipment in various industries, specializing in the research and development and supply of cooling fans such as DC cooling fans, AC cooling fans and DC blowers.We can provide professional customization of cooling fans according to customer needs.

1. First of all, we need to remove the cooling fan. We can fix the small cooling fan with one hand, and the larger cooling fan can be fixed with both hands. However, this operation is very dangerous. If you are not a professional, you should not test it like this. After disassembly, the vibration of the fan has been significantly improved. It can be considered whether the installation angle and installation method of the cooling fan are correct.

2. Remove the cooling fan, and carefully check whether the rack and fan blades vibrate. If there is vibration, it may be the cause of bearing damage. In this case the fan is no longer usable and needs to be replaced. Here we recommend double ball bearing exhaust fans for longer life and greater durability.

3. If the above two situations are not true, we can clean the dust and impurities of the fan and air duct. In addition, you can also consider whether there is a quality problem with the cooling fan.

Guangdong Chungfo Electronic Technology Co., Ltd. is a professional cooling fan manufacturer dedicated to the equipment cooling needs of various industries. Chungfo specializes in the development and supply of cooling fans such as axial cooling fans, cross flow fans and DC blowers. We can provide professional customization of cooling fans according to customer needs. If you have needs in this area, please feel free to contact us.

When the cabinet is running, it will generate a lot of heat. If it is not dissipated in time, it will cause the equipment to overheat and burn down or cause some wires to short-circuit. So when we install the cabinet, we usually install one or more cooling fans on the cabinet. Especially for cabinets with high efficiency and long service life, this can improve the cooling capacity of the cabinet. So how to install and choose the cabinet cooling fan? Please read on.

一、Fan installation

1. First of all, we need to determine the installation direction of the fan. The direction of the fan installation depends on whether your cabinet needs to take in the air or discharge the hot air in the cabinet to the outside. Generally speaking, the positive pressure in the cabinet should be maintained, so the air should be introduced into the cabinet. Because if the fan exhausts air outside the cabinet, it will cause negative pressure inside the cabinet, and the outside air will directly enter through the gaps in the cabinet door. This unfiltered air enters the cabinet directly, causing dust to build up inside the cabinet over time. However, the air entering the cabinet needs to be filtered by filter cotton, which can filter out the dust in the air, so as to avoid the failure caused by dust accumulation in the cabinet. Therefore, when installing the cooling fan of the cabinet, the positive pressure is better than the negative pressure, that is, the air intake into the cabinet is better.

2. We also need to clarify the opening position of the fan. When installing the fan, the positions of its air inlet and outlet also need to be carefully considered. Because hot air is less dense than cold air, the air flow in the cabinet will be from bottom to top. Therefore, under normal circumstances, the lower part of the front door or the side panel of the cabinet is used as the air inlet, and the upper part is used as the exhaust port. However, when the hotspots of some devices are on the top or side or the front door, the cabinet cannot open holes for fans. At this time, it is necessary to open a hole on the top, and the installation direction of the fan is to exhaust the air outside the cabinet, not to enter the cabinet.

二、Fan selection

1. Air volume. If the space in the cabinet is relatively large, we'd better choose a cooling fan with a larger air volume. Because the higher the speed, the greater the air volume of the fan, so we can choose a high rpm exhaust fan.

2. Power consumption. The greater the power consumption, the shorter the fan bearing life, so if the fan has met the customer's requirements in other aspects, try to choose a cooling fan with low power consumption.

3. Noise. The cooling fan tends to generate a lot of noise when it rotates at high speed. Therefore, you need to pay attention to the performance of the cooling fan when choosing to avoid excess performance and reduce unnecessary noise.

Guangdong Chungfo Electronic Technology Co., Ltd. is a professional cooling fan manufacturer dedicated to the equipment cooling needs of various industries. We can provide professional customization of cooling fans according to customer needs. If you have needs in this area, please feel free to contact us.

As cars become more and more common in life, cooling fans are also widely used in different cars. These automotive cooling fans need to be maintained after a period of time, which is conducive to long-term use and prolong the service life of the fans. The next content is to introduce some car cooling fan maintenance methods.

1. First of all, open the cooling fan shell, then open the cooling fan, and then turn off the power supply. Blow with an air gun at 3 cm away from the cooling fan. After blowing the dust off the surface, wipe the remaining dirt above the fan blades with industrial alcohol. From the front of the device to the back, it needs to be cleaned and then rotated repeatedly until it is clean.

2. There are many factors affecting the wind speed of the automobile cooling fan, among which the most important factor is the bearing of the cooling fan.

Ball bearings: Long-term oxidation and accumulation of dirt and dust of the bearings of ball bearing exhaust fans will increase the friction resistance of the bearings and gradually reduce the fan speed.

Oil-bearing: With the longer the use time of the cooling fan of oil-bearing, the oil in the bearing gradually decreases, resulting in the speed of the cooling fan becoming slower.

The bearings of the cooling fans rotate repeatedly when they are used, which will shorten the life of the fans as well as produce wear. So we need to maintain the bearings of the automobile cooling fan in different ways according to the characteristics of different bearings.

3. The intake network port of the automobile cooling fan should be kept clean to prevent airflow obstruction. The intake network port can be cleaned with a soft brush or compressed air.

Guangdong Chungfo Electronic Technology Co., Ltd. focuses on the cooling needs of equipment in various industries,we are a professional cooling fan manufacturer.We can provide professional customization of cooling fans according to customer needs.if you have a cooling fan needs, please feel free to contact us.

The cooling fan is used in a high humidity environment, so how does the Chungfo cooling fan manufacturer achieve this function of waterproof? Let me tell you! Take our D04010C waterproof cooling fan as an example!

Sealing design: The waterproof cooling fan is designed with a tight sealing structure to ensure that moisture cannot penetrate into the interior. Materials such as waterproof rubber rings and rubber seals are usually used to seal key parts, such as bearings and joints.

Waterproof materials: Our waterproof cooling fans are made of materials with excellent water resistance, such as waterproof plastic or waterproof coating. These materials are resistant to water corrosion and prevent water penetration.

Watertight circuit design: The circuit board of the waterproof cooling fan will be specially designed with waterproof coating or waterproof coating to prevent water from entering the circuit board and protect the circuit from damage.

Waterproof bearings: Waterproof cooling fans usually use special waterproof bearings or sealed ball bearings, which can effectively resist the intrusion of moisture and other liquids during operation.

IP level certification: We can perform IP level certification for waterproof cooling fans according to customer needs, such as IPX4, IPX6 levels, which indicate the ability of fans in waterproof performance.

In short, the D04010C cooling fan is the top waterproof cooling solution carefully created by Chungfo Electronic Technology Co., Ltd. to meet the market demand. Whether you need to operate equipment in an outdoor environment, or industrial equipment needs reliable heat dissipation support, this fan will be your first choice. At the same time, we provide quality assurance and professional after-sales service to provide you with a worry-free experience.

Contact Chungfo Electronic Technology Co., Ltd. now, book your D04010C waterproof cooling fan, and enjoy a safer, stable and lasting cooling solution!

In recent years, LED lighting has become an increasingly popular choice in residential and commercial lighting applications. However, like any technology, it is important to address potential issues such as overheating. This is the function of the cooling fan.

In today's world, the importance of proper heat dissipation cannot be overemphasized. This is especially true for electronic devices, as they generate a large amount of heat during operation. To address this issue, cooling fans have become an indispensable part of many electronic devices, including LED lighting. A type of heat dissipation fan commonly used for this purpose is an axial flow fan.

The axial cooling fan is designed to move air in a specific direction, parallel to the fan shaft. This makes them very suitable for cooling electronic devices that generate heat in specific areas. By guiding the air towards the heat source, these fans can effectively dissipate heat and maintain the safe operating temperature of the equipment.

When considering purchasing axial fans, it is important to consider the axial flow fan wholesale price. It is also important to consider the specific requirements of the application, such as the voltage required for fan operation, axial cooling fan 5v, axial cooling fan 24v, axial cooling fan 110v, axial cooling fan 220v, etc.

In addition to cooling LED lighting, axial fans can also be used for various other applications, such as equipment ventilation and various white goods. Cooling fans come in various sizes and configurations to meet your specific needs.

Overall, axial cooling fans are an important component of maintaining the safe and effective operation of electronic devices, including LED lighting. By selecting reputable cooling fan suppliers and carefully considering your specific application needs, you can ensure that your cooling fans will provide reliable and effective performance.

Guangdong Chungfo Electronic Technology Co., Ltd. is dedicated to the equipment cooling needs of various industries and is a professional manufacturer of cooling fans. We can provide professional customization of cooling fans according to customer needs. If you have any needs in this area, please feel free to contact us.

Cooling fans are used in many places in life and are indispensable auxiliary equipment. It is widely used in traditional or modern equipment such as consumer electronics, automotive electronics, medical equipment, heaters, air conditioners, car freezers, environmental protection equipment, and refrigeration equipment. The cooling fan has a service life. If it is used improperly, cooling fan life will naturally be shortened. To avoid shortening its service life, the following are the matters needing attention when using cooling fans.

1. It is forbidden to touch the fan blades and power cord of the cooling fan at will, otherwise the shaft and power cord will be easily damaged.

2. Avoid dust, water droplets and insects from entering, which will affect the service life of the product.

3. Do not use the fan in flammable gas or any harmful environment, which can reduce damage.

4. Do not leave the cooling fan idle for too long after purchase, as it may affect the normal use of the fan.

5. When the fan is in use, do not use external force to stop the fan. If it is stopped for a long time by external force, it is easy to cause the fan to overheat or burn directly.

6. When the fan is accidentally dropped from a certain height during operation, it will have a certain impact on the balance of the cooling fan blades. If there is a problem, replace the cooling fan in time.

Guangdong Chungfo Electronic Technology Co., Ltd. focuses on the cooling needs of equipment in various industries. We can provide professional customization of cooling fans according to customer needs. If you need axial cooling fan wholesale or other types of cooling fans, please feel free to contact us.

In general, the higher the fan speed, the greater the air volume. The cooling fan generates airflow by rotating the blades, and an increase in speed causes the blades to push more air per minute, and when more air can be pushed, the volume of air will also increase. So when customers pursue high air volume, they often choose high rpm exhaust fans.

(12038 DC fan is used as an example.)

It should be noted that although there is a positive correlation between speed and air volume, the relationship is not linear. In some cases, as the rotational speed increases, the increase in air volume may slow down. This is due to the influence of the fan's design and performance characteristics as well as hydrodynamic effects.

Hydrodynamic effects are physical phenomena and behaviors that occur when involving the movement of fluids, such as air. First of all, when the fan rotates, there will be resistance between the blade and the air, and the larger resistance will reduce the air volume, while the smaller resistance will increase the air volume. In addition, the shape and Angle of the fan blades also affect the pressure difference of the air, which in turn affects the size of the air volume.

Secondly, during the operation of the fan, the turbulence generated by the rotating blade will lead to the instability of the air flow, thus reducing the air volume. The shear layer will form higher and lower velocity airflow regions, which will also affect the distribution and size of the air volume.

In addition, the design of the import and export area, boundary layer effect and fan rotation will have an impact on the fan; And other factors of the cooling fan, such as blade design, blade number, fan diameter and motor power, will also affect the air volume.

Guangdong Chungfo Electronic Technology Co., Ltd. is dedicated to the equipment cooling needs of various industries, is a professional cooling fan manufacturer. If you are looking for axial cooling fans, cross flow cooling fans or other types of cooling fans, please feel free to contact us.