Bilateral magnetic flux switching permanent magnet linear motor

Abstract

The invention discloses a bilateral magnetic flux switching permanent magnet linear motor. The linear motor comprises bilateral secondary stators and a primary rotor arranged between the stators, theprimary rotor comprises six primary rotor units, connecting bridges exist between the primary rotor units, each primary rotor unit comprises two H-shaped magnetic conductive iron cores, and a permanent magnet is arranged between the two H-shaped magnetic conductive iron cores; a plurality of secondary teeth are formed on the secondary stators at intervals, secondary grooves are formed between thesecondary teeth, yoke parts are formed at the bottoms of the secondary grooves, magnetic conductive teeth are formed on the H-shaped magnetic conductive iron core opposite to the secondary teeth, andwinding mounting grooves are formed between the magnetic conductive teeth on the same side; the bilateral secondary stators are used as fixed parts, the primary rotor is used as a moving part, and theprimary rotor does linear motion in the middle of the bilateral secondary stators to form a motor with a bilateral flat plate structure. The linear motor has the advantages of the high utilization rate, the low magnetic flux leakage and the like.

Description

technical field [0001] The invention relates to the technical field of motors, in particular to a double-sided magnetic flux switching permanent magnet linear motor. Background technique [0002] At present, with the development of industrial technology, the use of linear motors in rail transportation, vertical lifting and other fields has become more and more a hot spot of application technology. This is due to the low efficiency of traditional rotary motors relying on mechanical transmission devices, which cannot meet the requirements of high-efficiency operation in terms of various performances. Compared with traditional rotary motors, linear motors omit mechanical transmission devices and directly generate electromagnetic force. , has the advantages of high thrust density, small loss and low noise. Therefore, using a linear motor instead of a rotary motor can overcome the above-mentioned shortcomings of the rotary motor in the above-mentioned application occasions and i...

AI Technical Summary

Problems solved by technology

However, there are still problems such as serious magnetic flux leakage, low utilization rate of magnetic permeable materials, high cost, and low thrust density, which limit its application in fields such as transportation tracks and vertical lifts.

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