Product Description

Rated Voltage
(VDC)
(50*50*20mm)
Startup Voltage
(VDC)
Currend Amp (A) Speed
(rpm) 
Air flow
(CFM)
Static Pressure
(Inch-H20)
Noise Level
(dB-A)
Weight
(g)
5 3 0.3 5500 19.15 3.69 33 32
5 3 0.25 5000 18.33 3.27 29 32
5 3 0.2 4500 17.52 2.85 26 32
12 6 0.14 5600 19.31 3.77 33 32
12 6 0.12 5000 18.33 3.27 29 32
12 6 0.1 4500 17.52 2.85 26 32
24 10 0.1 5500 19.15 3.69 33 32
24 10 0.08 5000 18.33 3.27 29 32
24 10 0.06 4500 17.52 2.85 26 32

Products details

ALL FAN                                                                                SPARE PARTS
                        

WATERPROOF FUNCTION                                          NOISE TEST
                                                                                                                                 

Application
 

Humidifier  3D printer  Car light bulb UAV  Medical Equipment 
Auto seat  LED Lighting  Computer  Rice cooker water fountain

Bearing type
 

Sleeve bearing(lower price) Ball bearing (higher price)
Imported from Germany NSK ball bearing imported from Japan
Low cost solution High quality, long service life
Stable performance Low noise level
Easy installation Easy installation
10.000 hours warranty 30.000 hours warranty

Packing & Delivery
 

Packing details in seaworthy carton or costomized
Delivery time 7 days for ordinary samples, 15 days for waterproof fan sample, 20 days for mass order
Shipping way by sea for big order
by air for hurry order 
by express such as DHL ,TNT, UPS or Fedex for mass order

Our company

-We are an enterprise specialized in developing and producing AC/DC/EC cooling fans.
It is applies to armamentarium, communication device, big server machine, security and protection monitoring,
professional power amplifier, indoor air ventilation, instrument and equipment etc. 

-We have owned professional R&D department, and we have dozens of patents of utility model and designs.

-We have full series dimension ranging from 25*25*7mm to 172*172*51mm, including sleeve bearing,
ball bearing, hydraulic bearing, and the current amp, rated voltage. Speed, air flow can all be customized.

-Our Tenets: others without I have, people have my superior. 

Certification

FAQ
 

Q: What kind of cooling fans or centrifugal fans are supplied by your company?

A: we can provide DC/AC/EC cooling fan and blower fan.

Q: Do you provide samples ? is it free or extra ?

A: Yes, we could offer 1~4pcs free sample for free charge but do not pay the cost of freight.
 

Q: What is your terms of payment ?

A: 100% in advance for sample order, 30% in advance and 70% before dispatch for mass order by T/T,Western Union or Paypal.

Q: What can we do for you?

A:Best quality cooling fans produced by ourselves, best service by our sales and engineers .  And we have own engineer can design and do the fans customized.

Q: What kind of information should be provided by the customer before order?

1. Fan dimension
2. Rated voltage, such as 5V/12V/24V
3. Speed (high, middle ,low)
4. Sleeve bearing or ball bearing
5. Leading wire length?(Our default length is 200mm)
6. Two wire leading(black and red wire) or three/four wire leading?
7.Connector: with connectro or not? If yes,please show us a picture .

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Material: PBT
Blade Material: PBT
Type: Cooling Fan
Electric Current Type: DC
Mounting: Screw Fixation
Certification: RoHS, UL, CE
Customization:
Available

|

dc motor

What are the main components of a DC motor, and how do they contribute to its functionality?

A DC (Direct Current) motor consists of several key components that work together to enable its functionality. Each component plays a crucial role in the operation of the motor. Here’s a detailed explanation of the main components of a DC motor and their contributions:

1. Stator:

The stator is the stationary part of the motor. It typically consists of permanent magnets or electromagnets that produce a fixed magnetic field. The stator’s magnetic field interacts with the rotor’s magnetic field to generate the required torque for motor rotation. The stator provides the foundation for the motor’s magnetic field and contributes to its overall stability and efficiency.

2. Rotor:

The rotor is the rotating part of the motor and is connected to the motor’s output shaft. It contains coils or windings that carry the armature current. The rotor’s windings interact with the stator’s magnetic field, resulting in the generation of a mechanical force that causes the rotor to rotate. The rotor’s movement is responsible for converting electrical energy into mechanical motion, enabling the motor to perform its intended function.

3. Armature:

The armature is the core of the rotor that holds the armature windings. The armature windings are typically made of copper wire and are evenly spaced around the armature. When a current passes through the armature windings, a magnetic field is created around them. This magnetic field interacts with the stator’s magnetic field, resulting in the generation of a torque that drives the rotor’s rotation. The armature is a critical component that facilitates the conversion of electrical energy into mechanical energy.

4. Commutator:

The commutator is a cylindrical ring attached to the rotor shaft. It consists of multiple segments, usually made of copper, that are insulated from each other. The commutator plays a vital role in the DC motor’s operation by providing the necessary electrical connections to the armature windings. As the rotor spins, the brushes make physical contact with different commutator segments, effectively reversing the direction of the current in the armature windings at the appropriate timing. This reversal of current flow ensures that the torque generated in the armature windings is always in the same direction, allowing for continuous rotation of the rotor.

5. Brushes:

The brushes are stationary contacts that make physical contact with the commutator segments. They are typically made of carbon or graphite and provide electrical connections to the armature windings. The brushes supply the current to the armature windings through the commutator, allowing for the creation of the magnetic field necessary for motor operation. The brushes need to maintain proper contact with the commutator to ensure efficient electrical transmission and reliable motor performance.

6. Housing or Frame:

The housing or frame of the DC motor encloses and supports all the internal components. It provides structural integrity, protects the motor from external elements, and helps dissipate heat generated during operation. The housing or frame also serves as a mounting point for the motor, allowing it to be securely installed in various applications.

By understanding the main components of a DC motor and their contributions, one can gain insights into how each part works together harmoniously to achieve the desired motor functionality.

dc motor

How do DC motors compare to AC motors in terms of performance and efficiency?

When comparing DC (Direct Current) motors and AC (Alternating Current) motors, several factors come into play, including performance and efficiency. Here’s a detailed explanation of how DC motors and AC motors compare in terms of performance and efficiency:

1. Performance:

Speed Control: DC motors typically offer better speed control compared to AC motors. DC motors can be easily controlled by varying the voltage applied to the armature, allowing for precise and smooth speed regulation. On the other hand, AC motors rely on complex control methods such as variable frequency drives (VFDs) to achieve speed control, which can be more challenging and costly.

Starting Torque: DC motors generally provide higher starting torque compared to AC motors. The presence of a separate field winding in DC motors allows for independent control of the field current, enabling higher torque during motor startup. AC motors, especially induction motors, typically have lower starting torque, requiring additional starting mechanisms or devices.

Reversibility: DC motors offer inherent reversibility, meaning they can easily change their rotational direction by reversing the polarity of the applied voltage. AC motors, particularly induction motors, require more complex control mechanisms to achieve reversible operation.

Dynamic Response: DC motors have faster dynamic response characteristics compared to AC motors. They can quickly accelerate or decelerate, making them suitable for applications that require rapid changes in speed or precise control, such as robotics or servo systems.

2. Efficiency:

Full Load Efficiency: AC motors, especially three-phase induction motors, generally exhibit higher full load efficiencies compared to DC motors. This efficiency advantage is primarily due to the absence of commutation and the use of a rotating magnetic field in AC motors, which results in reduced energy losses and improved efficiency.

Partial Load Efficiency: DC motors can have higher efficiency at partial loads compared to AC motors. DC motors can be controlled by adjusting the armature voltage, allowing them to operate at reduced power while maintaining relatively high efficiency. AC motors, especially induction motors, may experience reduced efficiency at partial loads due to factors such as increased iron losses and reduced power factor.

Regenerative Braking: DC motors offer the advantage of regenerative braking, where the motor acts as a generator and converts kinetic energy into electrical energy during deceleration or braking. This regenerative braking capability allows for energy recovery, increasing overall system efficiency. AC motors typically require additional components or systems to achieve regenerative braking.

Power Factor: AC motors, when properly designed and operated, can have a power factor close to unity. This means that they draw relatively low reactive power from the electrical grid, resulting in improved power system efficiency. DC motors, on the other hand, may exhibit a lower power factor and require power factor correction measures if necessary.

In summary, DC motors and AC motors have their respective strengths and weaknesses in terms of performance and efficiency. DC motors excel in speed control, starting torque, reversibility, and dynamic response. AC motors, particularly three-phase induction motors, generally offer higher full load efficiency and power factor. However, DC motors can achieve higher efficiency at partial loads and have the advantage of regenerative braking. The choice between DC motors and AC motors depends on the specific application requirements, cost considerations, and the desired balance between performance and efficiency.

dc motor

Are there innovations or emerging technologies in the field of DC motor design?

Yes, there have been several innovations and emerging technologies in the field of DC (Direct Current) motor design. These advancements aim to improve the performance, efficiency, reliability, and overall capabilities of DC motors. Here’s a detailed explanation of some notable innovations and emerging technologies in DC motor design:

1. Brushless DC Motors:

One significant advancement in DC motor design is the development and widespread adoption of brushless DC motors (BLDC motors). Unlike traditional DC motors that use brushes for commutation, BLDC motors employ electronic commutation through the use of permanent magnets and motor controller circuits. This eliminates the need for brushes, reducing maintenance requirements and improving overall motor efficiency and lifespan. BLDC motors offer higher torque density, smoother operation, better speed control, and improved energy efficiency compared to conventional brushed DC motors.

2. High-Efficiency Materials:

The use of high-efficiency materials in DC motor design has been an area of focus for improving motor performance. Advanced magnetic materials, such as neodymium magnets, have allowed for stronger and more compact motor designs. These materials increase the motor’s power density, enabling higher torque output and improved efficiency. Additionally, advancements in materials used for motor windings and core laminations have reduced electrical losses and improved overall motor efficiency.

3. Power Electronics and Motor Controllers:

Advancements in power electronics and motor control technologies have greatly influenced DC motor design. The development of sophisticated motor controllers and efficient power electronic devices enables precise control of motor speed, torque, and direction. These technologies have resulted in more efficient and reliable motor operation, reduced energy consumption, and enhanced motor performance in various applications.

4. Integrated Motor Systems:

Integrated motor systems combine the motor, motor controller, and associated electronics into a single unit. These integrated systems offer compact designs, simplified installation, and improved overall performance. By integrating the motor and controller, issues related to compatibility and communication between separate components are minimized. Integrated motor systems are commonly used in applications such as robotics, electric vehicles, and industrial automation.

5. IoT and Connectivity:

The integration of DC motors with Internet of Things (IoT) technologies and connectivity has opened up new possibilities for monitoring, control, and optimization of motor performance. By incorporating sensors, actuators, and connectivity features, DC motors can be remotely monitored, diagnosed, and controlled. This enables predictive maintenance, energy optimization, and real-time performance adjustments, leading to improved efficiency and reliability in various applications.

6. Advanced Motor Control Algorithms:

Advanced motor control algorithms, such as sensorless control and field-oriented control (FOC), have contributed to improved performance and efficiency of DC motors. Sensorless control techniques eliminate the need for additional sensors by leveraging motor current and voltage measurements to estimate rotor position. FOC algorithms optimize motor control by aligning the magnetic field with the rotor position, resulting in improved torque and efficiency, especially at low speeds.

These innovations and emerging technologies in DC motor design have revolutionized the capabilities and performance of DC motors. Brushless DC motors, high-efficiency materials, advanced motor control techniques, integrated motor systems, IoT connectivity, and advanced control algorithms have collectively contributed to more efficient, reliable, and versatile DC motor solutions across various industries and applications.

China wholesaler 50X50X20 DC Cooler Fan 5V DC Axial Fan 5cm Brushless Waterproof Ventilation Fan Motor   vacuum pump and compressor	China wholesaler 50X50X20 DC Cooler Fan 5V DC Axial Fan 5cm Brushless Waterproof Ventilation Fan Motor   vacuum pump and compressor
editor by CX 2024-05-15