Product Description

 

Item

Value

Warranty

3 monthsWarranty

Place of CHINAMFG

China

 

ZheJiang

Brand Name

EV CRAFT

Model Number

EV CRAFT-H23850 Propulsion System

Usage

Heavy lift drone, cargo drone, multi-rotor drone, paramotor, paraglider, VTOL drone, search and rescue drone.

Type

Brushless Motor

Construction

Permanent Magnet

Commutation

Brushless

Protect Feature

Explosion-proof

Efficiency

89%

Dimension

238mm x 50mm

KV Availability

27 / 35 / 45 / 60 (Customizable)

ESC

24S 300A

Max. Torque

80N.m

Max. Thrust

98kg

Max. RPM

2420

Max. Voltage

100V

CHINAMFG Current

300A

Propeller

AH-55

Max. Power

20KW

Lead

14 AWG silicone wire

Weight

4.5kg

Inside The Package

Motor, ESC(motor controller), propeller

Testing report

 throttle(%) U(V) I(A) N(RPM) F(KG) T(N.M) Motor output power(W) System input power(W) Motor efficiency Propeller force efficiency(G/W) System force efficiency(G/W)
0 95.1 -0.1 218.4 -0.1 0.0 8 -7.4 NaN NaN NaN
10 94.7 0.2 102.1 0.2 0.2 2 19.8 NaN Inf NaN
15 94.8 1.4 356.4 2.0 2.0 74.1 131.1 61.80% 26.956 16.674
20 94.7 3.7 543.6 4.7 4.0 229.9 348 66.50% 20.283 13.488
25 94.7 7.1 710.6 7.9 6.6 487.4 669.8 72.90% 16.335 11.893
30 94.6 12.0 872.3 11.8 9.7 883 1133.7 77.90% 13.364 10.399
35 94.5 19.6 1038.7 17.0 13.8 1503 1851.1 81.20% 11.348 9.185
40 94.4 29.7 1197.2 23.0 18.6 2335.5 2801.6 83.40% 9.895 8.23
45 94.2 43.1 1362.6 29.9 24.2 3453.6 4059.9 85.10% 8.693 7.359
50 93.9 59.3 1532.3 36.9 29.9 4797 5569.3 86.20% 7.731 6.623
55 93.6 82.1 1699.7 46.3 37.6 6691.1 7682.1 87.20% 6.991 6.571
60 93.2 109.7 1852.5 56.0 45.7 8860.5 15718.2 86.80% 6.395 5.482
65 92.8 136.8 1992.9 64.5 52.8 11011.9 12697 87.00% 5.947 5.086
70 92.3 171.6 2121.6 74.7 61.4 13625.9 15839.6 86.40% 5.608 4.723
75 91.8 205.3 2253 82.7 68.2 16068.5 18855 85.50% 5.246 4.391
80 91.4 237.4 2329.7 90.4 74.2 18093.9 21695.6 83.70% 5.059 4.175
85 91.0 263.5 2380.3 96.1 78.5 19547.3 23971.8 81.80% 4.951 4.017
90 90.8 279.4 2420 97.9 80.4 2 0571 .1 25373.1 80.50% 4.852 3.865

/* 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, Household Appliances, Power Tools, Drones ; Evtol ; Paramotor; Paraglider
Operating Speed: Adjust Speed
Excitation Mode: Shunt
Function: Driving
Casing Protection: Explosion-Proof Type
Number of Poles: 40
Samples:
US$ 1300/Piece
1 Piece(Min.Order)

|

Customization:
Available

|

dc motor

What is a DC motor, and how does it differ from other types of electric motors?

A DC (Direct Current) motor is an electric motor that converts electrical energy into mechanical motion. It operates based on the principle of electromagnetic induction and the interaction between current-carrying conductors and magnetic fields. DC motors are widely used in various applications due to their simplicity, controllability, and versatility. Here’s a detailed explanation of what a DC motor is and how it differs from other types of electric motors:

1. Basic Operation:

In a DC motor, electrical energy is supplied to the motor’s armature through a DC power source, typically a battery or a rectified power supply. The armature consists of multiple coils or windings that are evenly spaced around the motor’s rotor. The rotor is a cylindrical core with a shaft that rotates when the motor is energized. When current flows through the armature windings, it creates a magnetic field that interacts with the fixed magnetic field produced by the motor’s stator. This interaction generates a torque, causing the rotor to rotate.

2. Commutation:

DC motors employ a commutator and brushes for the conversion of electrical energy and the rotation of the rotor. The commutator consists of a segmented cylindrical ring attached to the rotor shaft, and the brushes are stationary conductive contacts that make contact with the commutator segments. As the rotor spins, the brushes maintain contact with the commutator segments, periodically reversing the direction of the current flow in the armature windings. This reversal of current flow in the armature windings ensures continuous rotation of the rotor in the same direction.

3. Types of DC Motors:

DC motors can be classified into different types based on their construction and the method of field excitation. The two main types are:

  • Brushed DC Motors: Brushed DC motors have a mechanical commutator and brushes to switch the current direction in the armature windings. These motors are relatively simple, cost-effective, and offer good torque characteristics. However, the commutator and brushes require regular maintenance and can generate electrical noise and brush wear debris.
  • Brushless DC Motors (BLDC): Brushless DC motors, also known as electronically commutated motors (ECMs), use electronic circuits and sensors to control the current flow in the motor windings. They eliminate the need for brushes and commutators, resulting in reduced maintenance and improved reliability. BLDC motors offer higher efficiency, smoother operation, and better speed control compared to brushed DC motors.

4. Speed Control:

DC motors provide excellent speed control capabilities. By adjusting the voltage applied to the motor, the speed of the DC motor can be regulated. Lowering the voltage reduces the motor’s speed, while increasing the voltage increases the speed. This feature makes DC motors suitable for applications that require precise speed control, such as robotics, conveyor systems, and electric vehicles.

5. Advantages and Disadvantages:

DC motors have several advantages, including:

  • Simple construction and easy maintenance (for brushed DC motors).
  • High starting torque.
  • Precise speed control.
  • Good controllability over a wide range of loads.

However, DC motors also have some limitations, such as:

  • Brushed DC motors require periodic maintenance and have limited brush life.
  • Brushed DC motors can generate electrical noise.
  • Brushless DC motors are often more expensive compared to brushed DC motors.

6. Differences from Other Electric Motors:

DC motors differ from other types of electric motors, such as AC (Alternating Current) motors, in several ways:

  • Power Source: DC motors require a DC power source, while AC motors operate from an AC power supply.
  • Speed Control: DC motors offer precise speed control by adjusting the applied voltage, whereas AC motors typically rely on frequency control for speed regulation.
  • Construction: DC motors use a commutator and brushes (in brushed DC motors) or electronic commutation (in brushless DC motors), while AC motors do not require commutation.
  • Starting Torque: DC motors typically provide higher starting torque compared to AC motors.

Overall, DC motors are versatile and widely used in various applications due to their controllability, speed regulation capabilities, and simplicity. The advancements inpower electronics and motor control technologies have further enhanced the performance and efficiency of DC motors, making them a popular choice in many industries.

dc motor

Can you explain the concept of armature winding in a DC motor?

In a DC (Direct Current) motor, the armature winding is a crucial component that plays a significant role in the motor’s operation. It is responsible for producing the magnetic field that interacts with the stator’s magnetic field, resulting in the generation of torque and the rotation of the motor. Here’s a detailed explanation of the concept of armature winding in a DC motor:

The armature winding is a coil or set of coils made of insulated wire that is wound around the armature core, which is typically a laminated iron core. The armature winding is located on the rotor of the motor and is connected to the commutator. It carries the armature current, which is the current that flows through the winding to create the magnetic field. The armature winding is usually made of copper wire due to its excellent electrical conductivity.

When a current passes through the armature winding, it generates a magnetic field around the winding according to Ampere’s circuital law. The direction of the magnetic field is determined by the right-hand rule, where the thumb represents the direction of the current flow, and the curled fingers indicate the direction of the magnetic field.

The interaction between the magnetic field produced by the armature winding and the magnetic field produced by the stator’s permanent magnets or electromagnets creates a mechanical force, known as torque. This torque causes the rotor to rotate, converting electrical energy into mechanical motion.

The armature winding is designed in such a way that it produces a multipole magnetic field. The number of poles in the winding corresponds to the number of poles in the stator’s magnetic field. This ensures that the magnetic fields of the armature and stator are properly aligned for efficient torque generation.

The armature winding is connected to the commutator, which is a cylindrical ring with multiple segments that are insulated from each other. As the rotor spins, the brushes make physical contact with different segments of the commutator, effectively reversing the direction of the current in the armature winding. This reversal of current flow ensures that the torque generated in the armature winding is always in the same direction, enabling continuous rotation of the rotor.

The design and configuration of the armature winding, including the number of turns, wire gauge, and connection scheme, can influence the motor’s performance characteristics, such as torque, speed, and efficiency. Optimal winding design is crucial for achieving the desired motor performance in various applications.

In summary, the armature winding in a DC motor is responsible for producing the magnetic field that interacts with the stator’s magnetic field, resulting in the generation of torque and the rotation of the motor. It is a critical component that facilitates the conversion of electrical energy into mechanical motion.

dc motor

What are the advantages and disadvantages of using DC motors in automotive applications?

DC (Direct Current) motors have been used in automotive applications for many years, although they have been largely replaced by other motor types such as AC (Alternating Current) motors and brushless DC motors in modern vehicles. However, there are still some advantages and disadvantages associated with using DC motors in automotive applications. Here’s a detailed explanation of the advantages and disadvantages:

Advantages of Using DC Motors in Automotive Applications:

1. Cost: DC motors tend to be less expensive compared to other motor types, such as AC motors or brushless DC motors. This cost advantage can make them an attractive option for certain automotive applications, especially in budget-conscious scenarios.

2. Simple Control: DC motors have a relatively simple control system. By adjusting the voltage applied to the motor, the speed and torque can be easily controlled. This simplicity of control can be advantageous in automotive applications where basic speed control is sufficient.

3. High Torque at Low Speeds: DC motors can provide high torque even at low speeds, making them suitable for applications that require high starting torque or precise low-speed control. This characteristic can be beneficial for automotive applications such as power windows, windshield wipers, or seat adjustments.

4. Compact Size: DC motors can be designed in compact sizes, making them suitable for automotive applications where space is limited. Their small form factor allows for easier integration into tight spaces within the vehicle.

Disadvantages of Using DC Motors in Automotive Applications:

1. Limited Efficiency: DC motors are typically less efficient compared to other motor types, such as AC motors or brushless DC motors. They can experience energy losses due to brush friction and electrical resistance, resulting in lower overall efficiency. Lower efficiency can lead to increased power consumption and reduced fuel economy in automotive applications.

2. Maintenance Requirements: DC motors that utilize brushes for commutation require regular maintenance. The brushes can wear out over time and may need to be replaced periodically, adding to the maintenance and operating costs. In contrast, brushless DC motors or AC motors do not have this maintenance requirement.

3. Limited Speed Range: DC motors have a limited speed range compared to other motor types. They may not be suitable for applications that require high-speed operation or a broad range of speed control. In automotive applications where high-speed performance is crucial, other motor types may be preferred.

4. Electromagnetic Interference (EMI): DC motors can generate electromagnetic interference, which can interfere with the operation of other electronic components in the vehicle. This interference may require additional measures, such as shielding or filtering, to mitigate its effects and ensure proper functioning of other vehicle systems.

5. Brush Wear and Noise: DC motors that use brushes can produce noise during operation, and the brushes themselves can wear out over time. This brush wear can result in increased noise levels and potentially impact the overall lifespan and performance of the motor.

While DC motors offer certain advantages in terms of cost, simplicity of control, and high torque at low speeds, they also come with disadvantages such as limited efficiency, maintenance requirements, and electromagnetic interference. These factors have led to the adoption of other motor types, such as brushless DC motors and AC motors, in many modern automotive applications. However, DC motors may still find use in specific automotive systems where their characteristics align with the requirements of the application.

China Standard 23850 Efficient Powerful 98kg Big Thrust Brushless DC Motor for /Evtol DIY Paramotor, Paraglider, Hexacopter Multirotor Quadcopter Drone   manufacturer China Standard 23850 Efficient Powerful 98kg Big Thrust Brushless DC Motor for /Evtol DIY Paramotor, Paraglider, Hexacopter Multirotor Quadcopter Drone   manufacturer
editor by CX 2024-05-13