Brushless direct current motor

Abstract

The present invention provides a brushless direct current motor. The brushless direct current motor is provided with two stators arranged along the same axle center, each stator has one annular body, one stator tooth is arranged on each body and is extended towards the center of the body; one boot part is formed at the tail end of each stator tooth, one coil having a preset gate count is coiled on each stator tooth, and the boot parts of each two stators are mutually interlaced and embraced with each other to form a round-hole configuration; a plurality of permanent magnets are around arranged on the rotating shaft of a rotor, and the permanent magnets are arranged in a south / north pole staggered arrangement mode at the periphery of the rotating shaft. Thus, a rotor is able to continuously rotate at the same direction through the interaction driving of coil circuits of two stators or the driving of the coil circuit of any one stator, so that the restriction of the brushless direct current motor on power supply may be reduced, and the electric energy is relatively saved during the full-time operation of the brushless direct current motor, therefore the generation of a cogging torque may be decreased, and the noise may be reduced.

Description

technical field [0001] The present invention relates to a DC motor, and aims to provide an effect of reducing cogging torque and reducing noise, and relatively saves electric energy during the full-time operation of the brushless DC motor. Background technique [0002] By the way, motors (also known as electric motors) can mainly convert electrical energy into mechanical energy, so as to drive machinery to rotate, vibrate or linearly move, and are widely used in the fields of automatic control and electromechanical integration. There are many home appliances in life. Motors need to be used for related operations, and the types and working applications of relative motors are becoming more and more diverse. [0003] Although there are many types of motors, they can be roughly divided into DC motors and AC motors according to the difference in driving current, and the basic structure is mainly composed of a stator (Stator) and a rotor (Rotor); among them, the AC motor is simple...

AI Technical Summary

Problems solved by technology

[0007] However, when the conventional brushless DC motor wants to adjust the speed, although it can be achieved by changing the voltage, it will feel relatively simple and easy, but if the motor is loaded, it will seriously cause insufficient torque. The problem is that a higher power power supply must be selected to allow the motor to start running from a standstill. This not only limits the power available to the brushless DC motor, but also consumes a relatively large amount of power during the full-time operation of the brushless DC motor.

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