12mm-40mm Brushed Coreless Motor Factory

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Micro Brushed Coreless DC Motors Source Manufacturer No Agent

Miniature coreless dc motor used as a driver, low consumption, high torque.

Global shipping In 3-4 Days by FEDEX.

On time to spec, small quantity support, no minimum quantity request.

Ø12mm – Ø40mm diameter coreless brushed motor.

Single shaft or double shafts available.

Motor shell is machined, with high quality material.

Analysis of the structure of the hollow cup motor:

The hollow cup motor is mainly composed of the back cover, the terminal, the brush end cover, the brush, the commutator, the cup winding (rotor), the rotating shaft, the gasket, the sliding bearing, the shell, the magnet (stator), the flange and the positioning ring. 

The stator consists of permanent magnets, shells and flanges. The housing provides a constant magnetic field, making the motor free of iron losses. No soft magnetic teeth. The torque produced is uniform, enabling smooth operation even at low speeds. At higher speeds, the motor reduces vibration and noise. Rotor with windings and commutator. The windings are connected to the shaft by so-called commutator plates. The coil moves in the air gap between the magnet and the housing. The commutation system uses a pair of precious metal brushes to reduce brush sparking. Reduced brush sparks produce less electromagnetic emissions.

Hollow cup motor features:

1. Drag characteristics: The running stability is very reliable, and the fluctuation of the speed is very small. As a micro motor, the fluctuation of the speed can be easily controlled within 2%.

2. Energy-saving features: The energy conversion efficiency is very high, and its maximum efficiency is generally above 70%, and some products can reach more than 90% (iron core motors are generally 70%).

3. Control characteristics: fast starting and braking, extremely fast response, mechanical time constant is less than 28 milliseconds, some products can reach within 10 milliseconds (iron core motors are generally more than 100 milliseconds); under the high-speed operation state within the recommended operating area , you can easily adjust the speed sensitively.

Because the hollow cup motor has overcome the insurmountable technical obstacles of the iron core motor, and its outstanding features are concentrated in the main performance of the motor, it has a broad application field. Especially with the rapid development of industrial technology, higher expectations and requirements for the servo characteristics of the motor are constantly put forward, so that the hollow cup motor has an irreplaceable position in many applications.

1. A follow-up system that requires fast response. Such as the rapid adjustment of the flight direction of the missile, the follow-up control of the high-magnification optical drive, the rapid automatic focusing, the highly sensitive recording and detection equipment, the industrial robot, the bionic prosthesis, etc., the hollow cup motor can well meet its technical requirements.

2. Products that require smooth and long-lasting dragging of driving components. Such as all kinds of portable instruments, personal portable equipment, instruments and equipment for field operations, electric vehicles, etc., the same set of power supply, the power supply time can be more than doubled.

3. All kinds of aircraft, including aviation, aerospace, model aircraft, etc. Taking advantage of the advantages of light weight, small size and low energy consumption of the hollow cup motor, the weight of the aircraft can be minimized.

4, a variety of civil electrical appliances, industrial products. Using the hollow cup motor as the executive element can improve the product grade and have superior performance.

5. Taking advantage of its high energy conversion efficiency, it can also be used as a generator; using its linear operating characteristics, it can also be used as a tachogenerator; with a reducer, it can also be used as a torque motor.

    The main application areas of the hollow cup motor:

1. A variety of civil electrical appliances and industrial products: the use of hollow cup motors as actuators can improve product grades and have superior performance.

2. Products that require stable and long-lasting driving of driving components: such as various portable instruments, personal portable equipment, instruments and equipment for field operations, electric vehicles, etc., the same set of power supply, the power supply time can be more than doubled.

The above is the main application field of the hollow cup motor. Of course, it can also be used as a tachometer motor by using its linear running characteristics.

 

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