Brushless servo motor

Abstract

The invention discloses a brushless servo motor. The outer wall of an rotor iron core is uniformly provided with a plurality of magnetic isolation strips parallel to the axis of the iron core, the arc-surface magnetic steels fixedly connected with the outer wall of the iron core are arranged between the adjacent magnetic isolation strips, and then fixing sleeves sleeve the magnetic isolation strips and the magnetic steels, so that the problem in the prior art that the fixing effect of a motor rotor on the magnetic steels is worse, is effectively solved, and the installation is convenient. Because of the magnetic bias design of the magnetic steel, the magnetic flux leakage can be reduced, the sine wave servo control is achieved, and the defects of low-speed noise and small torque are overcome. The brushless servo motor has very small low-speed sound, large torque and high efficiency, does not generate the environmental noise, is energy saving, and reduces the consumption.

Description

Technical field [0001] The invention relates to the field of permanent magnet brushless rotating motors, in particular to a brushless servo motor. Background technique [0002] Most of the existing brushless servo motors have fewer magnetic pole pairs, and have the disadvantages of lower torque density and power density, resulting in lower motor efficiency. In addition, the harmonics are large, which is prone to skin effect, which will cause the cable to overheat and affect the life of the cable; the harmonic current flowing through the transformer will cause the transformer to generate extra heat, resulting in the reduction of the actual capacity of the transformer; the harmonic current causes the reactive power compensation device Damage and adverse effects of other electronic equipment. It often has disadvantages such as large volume, complicated process, heavy weight, and large moment of inertia. Summary of the invention [0003] The technical problem to be solved by the pre...

AI Technical Summary

Problems solved by technology

[0002] Most of the existing brushless servo motors have fewer magnetic pole pairs, which have the disadvantages of low torque density and low power density, resulting in low motor efficiency

Moreover, the harmonics are large, which is prone to skin effect, which will cause the cable to overheat and affect the life of the cable; the harmonic current flowing through the transformer will cause the transformer to generate additional heat, resulting in a decrease in the actual capacity of the transformer; the harmonic current will cause the reactive power compensation device damage and adverse effects on other electronic equipment

There are often disadvantages such as excessive volume, complicated process, heavy weight, and large moment of inertia.

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