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Fan Assembly

Fan Assembly

What is Fan Assembly?

 

 

A fan assembly moves hot air away from a high-temperature region to protect components that could be damaged by high heat. Air is pulled towards the center of the fan assembly, and then exhausted across the entire surface area. Inside of a computer case, a processor or graphics card can produce significant heat. Along with heat sinks, the fan assembly dissipates this heat and maintains safe operating temperatures.

 

Advantages of Fan Assembly

Free choice of spare parts and customized fans

Assembling the fan means installing the various parts together step by step to finally form a complete fan. Different from existing brand fans, you can freely choose various spare parts when assembling the fan.

Improve service life

Assembling the fan can not only meet your own personalized needs, but also extend the service life of the fan. Because the selected parts are of high quality and can be properly maintained and updated, the assembled fans are often more durable than branded fans on the market.

Enjoy diy fun

There is a certain amount of diy fun in the process of assembling the fan. The process requires patience, care, and a certain amount of skill, but it's not complicated. Not only can it help you practice your skills, but it can also give you a sense of pride and accomplishment.

 

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Why Choose Us

Our factory

Our is a factory specializing in the production of automobile fan motor, fan assemblies and distributors etc,because of the optimization of the technological process, we have lower production costs while taking into account the quality.

Professional team

We are in line with the concept of one-stop service, quality is priority, customer is the first，our professional technical r & d team who have more than 30 years field experience provides technical support throughout the process.

High quality

Our business is to sell the products manufactured by the factory abroad，the biggest advantage of our products is long service life and high performance-to-price ratio.

Online service

Customers learn about our products and send us inquiries through online and offline channels. We will respond to your needs as soon as possible and give you the greatest support.

 

What is Included in Fan Assembly

 

Cooling fan

The primary component of the assembly is the cooling fan itself. It is an electric fan designed to move air and dissipate heat from the system it is cooling. Cooling fans come in various sizes and types, such as axial fans, centrifugal fans, or brushless dc fans.

Temperature sensor

In certain cooling systems, a temperature sensor may be integrated into the fan assembly. The sensor monitors the temperature of the target system and adjusts the fan speed accordingly for temperature-based fan control.

Control module or relay

In more sophisticated cooling systems, a control module or relay may be included. These components can provide variable speed control of the fan based on temperature or other factors, optimizing cooling performance and energy efficiency.

Fan motor

The fan motor is an electric motor that powers the cooling fan's blades to spin and create airflow. In most cases, it is a brushless dc motor for efficient and quiet operation.

Fan shroud

The fan shroud is a protective enclosure around the cooling fan. It helps direct the airflow and ensures that the fan pulls or pushes air through the intended cooling area, enhancing cooling efficiency.

Fan blades or impellers

The fan blades (also known as impellers) are the rotating components responsible for moving air. They are designed to generate sufficient airflow to cool the target system effectively.

Mounting brackets or housing

The cooling fan assembly may have mounting brackets or a housing that attaches the fan to the system or component it is cooling. These mounting components help secure the fan in place.

Wiring and connectors

The cooling fan assembly includes electrical wiring and connectors to connect the fan motor to the power source or the control system.

Protective grille

In applications where the cooling fan is exposed and could be a safety hazard, a protective grille may be added to prevent accidental contact with the fan blades.

 

Working Principle of Fan Assembly
 

Although the fan assembly has high reliability, it is still a mechanical device. When used for a long time, its speed may drop or even stop. Therefore, real-time monitoring of the fan's operating status is convenient for timely detection of problems. The alarm sensor can give an alarm signal when the fan speed is lower than a certain threshold, and the speed signal output can realize the real-time monitoring of the fan speed.

 

The alarm signal output from the fan circuit has two states: "high level" and "low level". The meaning of the two levels is generally in accordance with the positive logic system. High level means "fault" and "low level". "ping" means "normal". The speed signal output from the fan circuit is usually in the form of pulses, and each wave head indicates that the fan has rotated one revolution. Such signals can be directly provided to the host for display through the data bus.

 

The speed signal output by some fan assembly is not the real speed of the fan, but a multiple of the speed. For example, every revolution generates 2, 4 or 6 pulses, which must be processed to form a real speed signal reflecting the fan assembly. If you want to distinguish whether the fan speed is the real speed or a multiple, you can use the tachometer to measure the actual speed, and then compare it with the displayed data.

 

The speed measurement signal of the fan assembly is generally output from a three-lead plug. The yellow and black of the three leads are +12v power and ground respectively, and the other color line is the speed signal output line. It should be noted that the third lead of some three-lead fans is not a speed measurement signal output line, but a speed control signal line, through which the speed control signal is input to the fan motor.

 

The Main Items of The Fan Assembly

System impedance
Air flow resistance will cause air flow noise.

Turbulent flow of air flow
Due to the poor design of the flow channel, the turbulence of the air will have high-frequency noise. If the flow channel is not improved, it is difficult to improve quality.

Fan speed and size
The faster the fan speed, the better the heat dissipation effect. The larger the fan size, the greater the air volume and the better the heat dissipation effect. The higher the speed of the fan, the greater the noise, the larger the size, the greater the noise.

Temperature rise
After the temperature rises, the temperature difference decreases, and the heat dissipation effect decreases.

Vibration

Vibration will increase the noise of the fan, reduce the life span and reduce the speed.

Voltage fluctuation

Voltage fluctuation will cause the fan speed to change, make the work unstable and generate additional noise.

Design considerations

Other design requirements must also be taken into consideration to ensure the heat dissipation effect.

 

雅马哈Y15 Y15ZR鼓风机 OEM：2ND-E2405-00

 

Components of Fan Assembly

Rotor
Consists of magnets, fan blades and shafts; stator: Consists of silicon steel sheets, coils and bearings; control circuit: Ic induction magnet n. S. The pole is controlled by a circuit to conduct its coil to generate internal excitation to rotate the rotor. Type: Axial fan, dc fan.

Choice
Overall heat dissipation requirement q=cp m a t = d cp cfm △ t.

Rotor
Consists of magnets, fan blades and shafts.

Stator
Consists of silicon steel sheet, spool and bearing.

Control circuit
Magnet is induced by ic.

S.Pole controls its coil conduction through the circuit to generate internal excitation to rotate the rotor.

 

What Sensors Are Used In Fan Assembly

 

Temperature sensor
A temperature sensor can be used to measure the ambient temperature. This sensor allows the fan assembly to adjust its speed or turn on/off automatically based on the temperature levels, ensuring efficient cooling or maintaining a comfortable environment.

Humidity sensor
A humidity sensor measures the moisture content in the air. In certain fans, particularly those used in bathrooms or kitchens, a humidity sensor can activate the fan when the humidity reaches a certain threshold, helping to control moisture levels and prevent the growth of mold or mildew.

Occupancy sensor
An occupancy sensor, often using infrared or ultrasonic technology, detects the presence or movement of people within a room. In some fans, an occupancy sensor can automatically turn the fan on when someone enters the room and turn it off when the room is empty, saving energy and improving convenience.

Air quality sensor
An air quality sensor measures the levels of pollutants, such as dust, smoke, or volatile organic compounds (vocs), in the air. Some advanced fans may include air quality sensors to monitor indoor air quality and adjust the fan speed or activate special filtration features to improve air purification.

Speed/rotation sensor
Fans with variable speed settings may have a speed or rotation sensor to detect the fan's current speed or rotation rate. This sensor enables precise control of the fan's speed and allows for automatic adjustments based on user preferences or environmental conditions.

It's important to note that not all fan assembly incorporate these sensors, and the sensors used may vary depending on the specific design, intended use, and level of sophistication of the fan.

 

What Are The Internal Components of a Fan

 

 

Motor
The motor is the primary component responsible for rotating the fan blades. It is usually an electric motor, which converts electrical energy into mechanical energy. The motor is connected to the fan blades through a driveshaft.

Fan blades
The fan blades are mounted on the driveshaft and are responsible for generating airflow when they rotate. The number, shape, and size of the blades can vary depending on the fan design and intended use. Common blade types include axial, radial, or centrifugal designs.

Blade guard or cage: To ensure safety, fans often have a protective guard or cage surrounding the fan blades. The guard prevents accidental contact with the rotating blades and reduces the risk of injury.

Housing
The housing, also known as the casing or frame, encloses and supports the internal components of the fan. It provides structural integrity and protection to the fan's internal mechanisms. The housing is typically made of plastic or metal.

Bearings
Bearings are used to support the rotating shaft of the fan. They reduce friction and allow smooth rotation of the blades. Common types of bearings used in fans include sleeve bearings, ball bearings, or oil-impregnated bronze bushings.

Stator and rotor: In some types of fans, particularly those with brushless dc motors, there are additional components called the stator and rotor. The stator is the stationary part of the motor, while the rotor is the rotating part. These components work together to create the magnetic field necessary for motor operation.

Control circuitry
In fans with advanced features or variable speed control, there may be control circuitry present. This circuitry includes electronic components such as resistors, capacitors, transistors, and integrated circuits, which regulate the fan speed, provide user controls, or enable additional functionalities like timers or remote control operation.

Power cord and switch
The fan is connected to a power source via a power cord. The power cord may have a plug for connection to an electrical outlet. Additionally, a switch or control mechanism is typically incorporated into the fan design to turn the fan on or off and adjust its speed if applicable.

 

Our Factory

 

Oubang automobile appliances co., ltd. Is manufacturer of cooling system parts fan motor since 1998, after more than 20 years of development and innovation, the company has developed four series of products and more than 500 hundred of varieties. The products are suitable for all kinds of japanese cars.

 

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FAQ

 

Q: What is a fan used for?

A: Fans are used for circulating air in rooms and buildings; for cooling motors and transmissions; for cooling and drying people, materials, or products; for exhausting dust and noxious fumes; for conveying light materials; for forced draft in steam boilers; and in heating, ventilating, and air-conditioning systems.

Q: What are the three types of fans?

A: There are three main types of fans used for moving air, axial, centrifugal (also called radial) and cross flow (also called tangential).

Q: What is the introduction of a fan?

A: A fan is a type of powered machine, something used to create flow within a fluid, usually air. A fan made up of two key components; a rotating arrangement of vanes or blades which act on the air and a motor which rotates the blade assembly. The rotating assembly of blades and hub is usually known as an impeller.

Q: How do fans move air?

A: When the fan is turned on, the blades start to spin in a circular motion. As they move, they create a low-pressure area beneath them, which causes air to be drawn up from the room. This air then moves towards the blades and is pushed outwards towards the edges of the blades.

Q: Why do fans have 3 wires?

A: A 3-wire fan has power, ground, and a tachometric (“tach”) output, which provides a signal with frequency proportional to speed.

Q: What type of fan moves the most air?

A: If you're looking for a fan that moves the most air, consider a large ceiling fan with a high blade pitch, a high-quality motor, and high rpm.

Q: How is a fan built?

A: An electric fan's basic design includes a motor, blades, a cage or housing, and a power wire. The motor is typically constructed of copper wire coils and a rotor that rotates when power is applied to it.

Q: What is the difference between a fan and a cooler fan?

A: Unlike a fan, an air cooler releases cool air instead of circulating warm air, which will have a more noticeable effect on the temperature. This temperature will also be felt across the whole room, instead of the focus point that a fan cools. Some also have a heating function, making them useful in the winter as well.

Q: Can fans cool a room?

A: Fans can help move the air around and decrease the chances of airborne pollutants accumulating in one area. This increased airflow can also make a room feel cooler because of a process called convection, which is when warm air rises and creates space for cooler air to flow in.

Q: What makes a fan powerful?

A: Size and blade design: Size and blade design play a crucial role in determining the power and effectiveness of a fan. Blade design: The design of the fan blades directly affects its airflow performance. Different blade shapes and angles can impact how efficiently the fan moves air.

Q: Is a fan better than ac?

A: Fans create air movement and are less expensive than the ac. However, fans don't produce cold air—they simply move the existing air around. The air flow helps us feel more comfortable, but it doesn't reduce the temperature. The best way to stay cool and under budget is by running a fan and the ac together.

Q: Why do fans have 4 pins?

A: The reason is quite simple: The 4-pin pwm header is used to control the cooling fan that's attached to the enclosure. Most modern motherboards are likely to be equipped with such a header, which is connected to a pwm-supported bldc fan.

Q: Is a centrifugal fan better?

A: Like axial fans, centrifugal fans come in both ac and dc models, but centrifugal fans usually require more power to operate. Due to their reliable and durable design, centrifugal fans are particularly well-suited for harsh environments containing hot air, particulates, and gases.

Q: How to increase fan airflow?

A: To improve ceiling fan airflow in the room, your fan must have excellent rotating speed along with air movement. The movement helps form a low-pressure area, and hence, air is drawn towards the ceiling. The air moves in the blade's direction and moves towards its edges.

Q: How does a fan work mechanically?

A: Electric fan works on the principle of conversion of electric energy into mechanical energy by means of magnetic fields and in this case converted mechanical energy is consumed as rotary motion of fan blades.

Q: What technology is used in electric fans?

A: An induction motor used in traditional fans uses a series of coils powered by ac input voltage to create magnetic fields in the stator (static part) and induced magnetic field in the rotor (rotating part). Bldc motors, in contrast, use permanent magnets for the rotor which creates a magnetic field.

Q: Is a fan electrical or mechanical?

A: All fans consume energy to spin. Belt-driven fans use mechanical energy directly from the engine. Electric fans rely on electric energy from the battery and charging system. But in cooling, what makes a good fan is optimum airflow for cooling with minimum energy consumption (for maximum engine power and fuel economy).

Q: Is a fan an electrical equipment?

A: Some fans are not electrically but mechanically driven (like the cooling fan for the engine in older cars). Of course every fan that uses an electric motor is an electrical device. Electronics are systems were electricity is used for control purposes (like switching on some functionality).

Q: Is a ceiling fan electrical to mechanical?

A: The ceiling fan has an electric ac motor that converts electrical energy into mechanical energy. First, the capacitor of the ceiling fan generates torque in the electric motor, causing it to start and run.

Q: Is a ceiling fan electric or electronic?

A: A ceiling fan is one that is mounted on the ceiling of your room, runs on electricity and uses rotating blades which cuts the air to produce airflow.

As one of the leading fan assembly manufacturers and suppliers in China for over 20 years, we warmly welcome you to buy or wholesale high quality fan assembly at competitive price from our factory. For customized service, contact us now.

38615 REJ W02, 16100 29156, IGNITION DISTRIBUTOR FOR NISSAN L16 L18 ELECTRIC

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