Electric Tools Motor 6-26V 5-25W Brushless DC Motor For Power Drill Tools

Performance Specification

Lead Time

Essential Details

Warranty: 3 Years

Model Number: KG-2847DC26

Rated Voltage: 6-26V

Rated Speed: 6095-11000RPM

Output Power: 5-25W

Continuous Current: Customizable

Place of Origin: Guangdong, China

Type: Brushless DC Motor

Application: Power Tools

Rated Torque: 122-174g.cm

Drawings

Motor Picture

Motor Application

Construction of Brushless DC Motor

In this motor, the permanent magnets attach to the rotor.The current-carrying conductors or armature windings are located on the stator. They use electrical commutation to convert electrical energy into mechanical energy.

The main design difference between a brushed and brushless motors is the replacement of mechanical commutator with an electric switch circuit. A BLDC Motor is a type of synchronous motor in the sense that the magnetic field generated by the stator and the rotor revolve at the same frequency.

Brushless motor does not have any current carrying commutators. The field inside a brushless motor is switched through an amplifier which is triggered by the commutating device like an optical encoder.

The Layout of a DC Brushless Motor can Mary Depending on Whether it is in “Out Runner”Style or “Inrunner"Style.

• Outrunner - The field magnet is a drum rotor which rotates around the stator. This style is preferred for applications that require high torque and where high rpm isn’t a requirement.

• In runner - The stator is a fixed drum in which the field magnet rotates. This motor is known for producing less torque than the out runner style, but is capable of spinning at very high rpm.

Working Principle of Brushless DC Motor

Lorentz force law which states that whenever a current carrying conductor placed in a magnetic field it experiences a
force. As a consequence of reaction force, the magnet will experience an equal and opposite force. In the BLDC motor, the current carrvina conductor is stationarv and the permanent maanet is movina.

When the stator coils get a supply from source, it becomes electromagnet and starts producing the uniform field in the air gap. Though the source of supply is DC. switching makes to generate an AC voltage waveform with trapezoidal shape. Due to the force of interaction between electromagnet stator and permanent magnet rotor, the rotor continues to rotate.

With the switching of windings as High and Low signals, corresponding winding energized as North and South poles. The permanent magnet rotor with North and South poles align with stator poles which causes the motor to rotate.