Product Description

 

Basic parameter
Motor size:Φ21.3mm*17.6mm Shaft: unembroidered steel
Coil wire: high temperature resistant copper Slot pole :12N14P
Output axis: 3.5 Lead :22AWG*150mm
Magnet type: Tile Mounting hole: 4*M2*∅12
Winding mode: Single strand Stator diameter :15mm

Motor parameter
KV value:1850 Voltage support:(3-6S)
unloaded(10V):0.55A Interphase internal resistance:220Ω
Maximum power:378W Weight line:18g
               
Load performance(1850KV)
paddle Throttle
(%)
Voltage(V) Curren
(A)
Speed
(rpm)
pulling force(g) Power(W) force effect
(g/w)
4571 20 23.99 1.081 13840 92.82 27.20 3.238
30 23.96 2.192 18144 168.72 55.13 2.906
40 23.94 3.214 21035 233.78 80.75 2.749
50 23.91 4.34 23397 296.90 108.99 2.590
60 23.87 6.134 25112 344.19 153.72 2.129
70 23.86 6.557 27048 398.28 164.33 2.304
80 23.84 7.362 28636 454.26 184.28 2.342
90 23.79 9.743 31261 545.58 243.39 2.130
100 23.76 10.836 32104 587.60 270.38 2.064
 
paddle Throttle
(%)
Voltage(V) Curren
(A)
Speed
(rpm)
pulling force(g) Power(W) force effect
(g/w)
5125 20 16.02 0.911 8246 67.81 15.33 4.207
30 16.01 1.638 1571 123.26 27.51 4.253
40 15.99 2.562 12737 183.04 43.05 4.043
50 15.97 3.484 14273 235.29 58.38 3.828
60 15.95 4.315 15641 282.30 72.24 3.712
70 15.93 5.297 16763 333.87 88.62 3.581
80 15.88 6.8 18243 408.40 113.4 3.421
90 15.84 8.779 19919 487.99 146.055 3.174
100 15.82 9.782 20322 530.33 162.54 3.100
 
paddle Throttle
(%)
Voltage(V) Curren
(A)
Speed
(rpm)
pulling force(g) Power(W) force effect
(g/w)
5125 20 23.99 1.133 10749 122.46 28.56 4.076
30 23.97 2.464 14105 223.89 62.06 3.430
40 23.93 3.803 16624 318.44 95.55 3.166
50 23.89 5.389 18549 405.04 135.14 2.848
60 23.85 6.945 20195 486.18 173.99 2.655
70 23.82 8.491 21513 559.91 212.42 2.505
80 23.75 11.11 23298 671.65 277.10 2.303
90 23.68 14.065 24527 775.54 349.65 2.107
100 23.65 15.256 24424 816.15 378.84 2.047
 
paddle Throttle
(%)
Voltage(V) Curren
(A)
Speed
(rpm)
pulling force(g) Power(W) force effect
(g/w)
D90 20 24 1.235 12452 99.46 31.08 3.184
30 23.98 2.309 16469 170.34 58.17 2.785
40 23.95 3.472 19216 236.93 87.36 2.578
50 23.92 4.656 21507 298.94 116.97 2.428
60 23.88 6.254 23624 356.17 156.77 2.158
70 23.84 7.98 25099 401.89 199.82 1.913
80 23.83 8.479 27114 461.88 212.21 2.068
90 23.78 10.854 29733 550.64 271.01 1.930
100 23.75 11.762 30582 588.03 293.27 1.905
 
Motor load @ 100% throttle operation, at an ambient temperature of 26 degrees Celsius, the above data is for reference only
Motor parameter
KV value:2500 Voltage support:(3-6S)
unloaded(10V):0.72A Interphase internal resistance:143Ω
Maximum power:516W Weight line:17.3g
Load performance(2500KV)
paddle Throttle
(%)
Voltage(V) Curren
(A)
Speed
(rpm)
pulling force(g) Power(W) force effect
(g/w)
4571 20 21.98 1.483 15798 122.85 34.23 3.410
30 21.94 3.27 2 0571 212.22 75.29 2.676
40 21.89 5.478 24115 304.33 125.90 2.297
50 21.84 7.672 26932 378.83 175.88 2.046
60 21.79 9.495 28495 445.11 217.25 1.947
70 21.76 11.171 30380 496.14 255.26 1.847
80 21.7 13.6 31653 579.93 309.86 1.778
90 21.62 16.912 33576 666.06 383.88 1.648
100 21.58 18.392 34666 681.22 416.75 1.553
 
paddle Throttle
(%)
Voltage(V) Curren
(A)
Speed
(rpm)
pulling force(g) Power(W) force effect
(g/w)
5125 20 15.99 1.372 9747 98.68 23.00 4.068
30 15.96 2.908 12915 183.59 48.72 3.579
40 15.92 4.668 15169 261.52 78.02 3.184
50 15.88 6.251 16951 331.99 104.27 3.026
60 15.84 7.936 18464 399.71 131.99 2.877
70 15.8 9.749 19738 466.85 161.81 2.742
80 15.74 12.378 21373 555.23 204.65 2.578
90 15.67 15.659 23072 654.37 257.57 2.414
100 15.63 17.169 23565 693.80 281.72 2.340
 
paddle Throttle
(%)
Voltage(V) Curren
(A)
Speed
(rpm)
pulling force(g) Power(W) force effect
(g/w)
5125 20 21.97 1.67 12164 156.30 38.54 3.853
30 21.93 3.892 15768 285.35 89.57 3.571
40 21.87 6.147 18286 384.18 141.23 2.585
50 21.81 9.226 2 0571 486.19 211.26 2.187
60 21.75 11.686 21674 555.56 266.81 1.978
70 21.69 13.738 23194 638.01 312.90 1.938
80 21.61 17.095 24786 754.60 387.98 1.848
90 21.51 21.354 25914 846.99 482.37 1.668
100 21.48 22.911 26118 855.51 516.60 1.573
 
paddle Throttle
(%)
Voltage(V) Curren
(A)
Speed
(rpm)
pulling force(g) Power(W) force effect
(g/w)
D90 20 21.98 1.804 14219 124.34 41.58 2.838
30 21.93 3.779 18832 212.99 87.05 2.325
40 21.89 5.77 21802 295.08 132.62 2.115
50 21.83 8.611 23820 369.27 197.30 1.778
60 21.78 10.431 26707 432.19 238.56 1.721
70 21.74 12.066 28737 484.10 275.42 1.669
80 21.7 13.866 30703 557.73 315.95 1.678
90 21.62 17.31 32863 644.10 392.91 1.558
100 21.58 18.792 33860 679.53 425.78 1.516
 
Motor load @ 100% throttle operation, at an ambient temperature of 26 degrees Celsius, the above data is for reference only
               
Motor parameter
KV value:3150 Voltage support:(3-4S)
unloaded(10V):0.87A Interphase internal resistance:93Ω
Maximum power:418W Weight line:17.3g
               
Load performance(3150KV)
paddle Throttle
(%)
Voltage(V) Curren
(A)
Speed
(rpm)
pulling force(g) Power(W) force effect
(g/w)
4571 20 16 1.893 13980 94.07 31.82 2.815
30 15.96 3.894 18707 181.22 65.21 2.639
40 15.91 5.85 21823 252.18 97.76 2.452
50 15.86 8.097 24486 319.26 134.82 2.251
60 15.81 9.91 26546 375.89 164.54 2.171
70 15.78 11.446 28077 424.48 189.63 2.126
80 15.73 13.353 29885 476.37 220.61 2.051
90 15.65 16.998 32366 568.76 279.30 1.935
100 15.61 18.658 33211 623.10 305.76 1.936
 
paddle Throttle
(%)
Voltage(V) Curren
(A)
Speed
(rpm)
pulling force(g) Power(W) force effect
(g/w)
5125 20 15.99 2.031 10989 125.86 34.13 3.506
30 15.94 4.416 14549 233.43 73.92 3.000
40 15.87 7.041 16851 330.39 117.39 2.674
50 15.82 9.671 18807 417.56 160.65 2.469
60 15.76 12.344 2 0571 502.16 204.23 2.336
70 15.7 14.925 21829 580.19 246.02 2.241
80 15.6 19.21 23376 684.72 314.58 2.068
90 15.49 23.534 25277 783.03 382.83 1.943
100 15.44 25.819 25527 836.19 418.43 1.898
 
paddle Throttle
(%)
Voltage(V) Curren
(A)
Speed
(rpm)
pulling force(g) Power(W) force effect
(g/w)
D90 20 16 1.706 12522 98.72 28.67 3.274
30 15.95 3.908 16955 180.38 65.42 2.619
40 15.9 6.072 19882 247.02 101.33 2.316
50 15.85 8.165 22375 311.93 135.87 2.181
60 15.79 10.467 24258 367.64 173.57 2.013
70 15.76 12.178 26172 416.04 201.50 1.962
80 15.69 15.229 27782 479.22 250.74 1.851
90 15.61 18.291 3 0571 570.28 299.78 1.808
100 15.58 19.705 31880 598.37 322.25 1.764
 
paddle Throttle
(%)
Voltage(V) Curren
(A)
Speed
(rpm)
pulling force(g) Power(W) force effect
(g/w)
D905 20 15.99 2.069 10676 97.46 34.76 2.666
30 15.94 4.418 14462 175.76 73.92 2.257
40 15.88 7.037 16930 249.95 117.29 2.571
50 15.82 9.662 18804 315.19 160.44 1.866
60 15.76 12.211 2571 373.93 202.13 1.758
70 15.7 14.499 22289 429.00 239.09 1.705
80 15.61 18.646 24005 506.57 305.55 1.575
90 15.51 22.809 26344 585.26 371.39 1.497
100 15.47 24.64 26575 618.85 400.26 1.469
 
Motor load @ 100% throttle operation, at an ambient temperature of 26 degrees Celsius, the above data is for reference only

Common problems:
Q: Who are we?
A: We are a specialized manufacturer of drone motors
Q: Can you give me a sample order for the drone motor?
Answer: Yes, the minimum order quantity is low, you can provide 1 sample for testing, but you are responsible for the transportation cost.
Q. What about wait times?
A: Samples take 7-10 days.
Q: How do you ship the goods? How long will it take to get there?
A: We usually ship by air. It usually takes 7-15 days to arrive. Please contact us if you need another mode of transportation before shipping.
Q: Can you support oem and odm?
A: We can provide you with OEM/ODM services.
Q: What is the lead time of the sample?
A: Usually 1-3 weeks.
Q: What is the lead time for mass production?
A: Usually 1 month. It depends on the quantity of your order or other special circumstances.
Q: What are your payment terms?
A: T/T, Western Union and other payment methods are available. Please contact us with the payment method you require before ordering. Payment terms: 30%-50% deposit, balance paid before delivery.
Q: Can my logo be printed on the product?
A. Yes. Please inform and authorize us officially before we produce, and confirm the design according to the sample.
Q: Can I visit your factory before ordering?
A: Yes, welcome to visit our factory.
  /* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

Application: Universal, Industrial
Operating Speed: High Speed
Excitation Mode: Excited
Function: Control
Casing Protection: Protection Type
Number of Poles: 14
Samples:
US$ 12/Piece
1 Piece(Min.Order)

|

Customization:
Available

|

dc motor

Can you explain the basic working principle behind a DC motor?

A DC (Direct Current) motor operates based on the fundamental principle of electromagnetic induction. It converts electrical energy into mechanical motion by utilizing the interaction between magnetic fields and current-carrying conductors. Here’s a detailed explanation of the basic working principle behind a DC motor:

1. Construction:

A DC motor consists of several key components:

  • Stator: The stator is the stationary part of the motor and typically consists of permanent magnets or electromagnets that produce a fixed magnetic field.
  • Rotor: The rotor is the moving part of the motor and is connected to the shaft. It contains coils or windings that carry the armature current.
  • Armature: The armature is the core of the rotor that holds the armature windings. The windings are usually made of copper wire and are evenly spaced around the armature.
  • 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.
  • 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.

2. Electromagnetic Induction:

When a current-carrying conductor is placed in a magnetic field, it experiences a force due to the interaction between the magnetic field and the current. This phenomenon is described by the right-hand rule, where the direction of the force is perpendicular to both the current direction and the magnetic field direction.

3. Motor Operation:

When a DC motor is powered, a DC voltage is applied to the armature windings through the brushes and commutator. The current flowing through the armature windings creates a magnetic field around the windings. This magnetic field interacts with the fixed magnetic field produced by the stator, resulting in a force that causes the rotor to rotate.

4. Commutation:

The commutation process is crucial for the continuous rotation of the rotor in a DC motor. As the rotor spins, the brushes make 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. Speed Control:

The speed of a DC motor can be controlled by varying the applied voltage. Reducing the voltage results in a decrease in the magnetic field strength, which in turn decreases the force acting on the armature windings. This reduction in force leads to a decrease in the motor’s speed. Conversely, increasing the voltage increases the speed of the motor. Precise speed control can be achieved by using electronic circuits to regulate the voltage supplied to the motor.

6. Advantages and Applications:

DC motors offer several advantages, including:

  • High starting torque, making them suitable for applications requiring high initial force.
  • Excellent speed control capabilities, allowing for precise and adjustable speed regulation.
  • Relatively simple construction and ease of maintenance.
  • Wide range of sizes and power ratings, making them adaptable to various applications.

DC motors find extensive use in numerous applications, such as robotics, industrial automation, electric vehicles, appliances, and more.

By understanding the basic working principle behind a DC motor, one can appreciate its functionality and explore its applications in different fields.

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 safety considerations or maintenance practices associated with DC motors?

Yes, there are safety considerations and maintenance practices associated with DC (Direct Current) motors. DC motors, like any other electrical equipment, require proper handling, maintenance, and adherence to safety guidelines to ensure safe operation and longevity. Here’s a detailed explanation of the safety considerations and maintenance practices associated with DC motors:

Safety Considerations:

Electrical Hazards: DC motors operate with high voltages and currents, posing electrical hazards. It is essential to follow proper electrical safety practices, such as wearing appropriate personal protective equipment (PPE) and ensuring that electrical connections are secure and insulated. Proper grounding and isolation techniques should be employed to prevent electrical shocks and accidents.

Lockout/Tagout: DC motors, especially in industrial settings, may require maintenance or repair work. It is crucial to implement lockout/tagout procedures to isolate the motor from its power source before performing any maintenance or servicing activities. This ensures that the motor cannot be accidentally energized during work, preventing potential injuries or accidents.

Overheating and Ventilation: DC motors can generate heat during operation. Adequate ventilation and cooling measures should be implemented to prevent overheating, as excessive heat can lead to motor damage or fire hazards. Proper airflow and ventilation around the motor should be maintained, and any obstructions or debris should be cleared.

Mechanical Hazards: DC motors often have rotating parts and shafts. Safety guards or enclosures should be installed to prevent accidental contact with moving components, mitigating the risk of injuries. Operators and maintenance personnel should be trained to handle motors safely and avoid placing their hands or clothing near rotating parts while the motor is running.

Maintenance Practices:

Cleaning and Inspection: Regular cleaning and inspection of DC motors are essential for their proper functioning. Accumulated dirt, dust, or debris should be removed from the motor’s exterior and internal components. Visual inspections should be carried out to check for any signs of wear, damage, loose connections, or overheating. Bearings, if applicable, should be inspected and lubricated as per the manufacturer’s recommendations.

Brush Maintenance: DC motors that use brushes for commutation require regular inspection and maintenance of the brushes. The brushes should be checked for wear, proper alignment, and smooth operation. Worn-out brushes should be replaced to ensure efficient motor performance. Brush holders and springs should also be inspected and cleaned as necessary.

Electrical Connections: The electrical connections of DC motors should be periodically checked to ensure they are tight, secure, and free from corrosion. Loose or damaged connections can lead to voltage drops, overheating, and poor motor performance. Any issues with the connections should be addressed promptly to maintain safe and reliable operation.

Insulation Testing: Insulation resistance testing should be performed periodically to assess the condition of the motor’s insulation system. This helps identify any insulation breakdown or degradation, which can lead to electrical faults or motor failures. Insulation resistance testing should be conducted following appropriate safety procedures and using suitable testing equipment.

Alignment and Balance: Proper alignment and balance of DC motors are crucial for their smooth operation and longevity. Misalignment or imbalance can result in increased vibrations, excessive wear on bearings, and reduced motor efficiency. Regular checks and adjustments should be made to ensure the motor is correctly aligned and balanced as per the manufacturer’s specifications.

Manufacturer’s Recommendations: It is important to refer to the manufacturer’s guidelines and recommendations for specific maintenance practices and intervals. Each DC motor model may have unique requirements, and following the manufacturer’s instructions ensures that maintenance is carried out correctly and in accordance with the motor’s design and specifications.

By adhering to safety considerations and implementing proper maintenance practices, DC motors can operate safely, reliably, and efficiently throughout their service life.

China Professional Control 14 Lyhm Uav Motor DC Efficient Engine for Drones   vacuum pump for ac	China Professional Control 14 Lyhm Uav Motor DC Efficient Engine for Drones   vacuum pump for ac
editor by CX 2024-05-03