Reluctance motor with chord-arc mover magnetic circuit

Abstract

A reluctance motor with a chord-arc mover magnetic circuit comprises stator core and a rotor (mover) core. The reluctance motor with the chord-arc mover magnetic circuit is characterized in that the stator core has a slotless row pole structure; windings with certain turn numbers are wound on stator poles; the number L of the stator poles is S times larger than a phase number C; the C is an integer larger than 2; the S is an even number larger than 2; the stator poles are divided into S groups at the circumference; phase sequences of the stator poles in any group at the circumference are the same as each other; the phase sequences of the stator poles in the two adjacent groups on the circumference have reverse polarities; the rotor (mover) core is group-correlated crossing pole and salient pole structure; the number F of rotor (mover) salient poles is quotient obtained by dividing the number L of the stator poles by the phase number C; a connecting core between the two adjacent rotor (mover) salient poles can be shaped like a chord as wide as the salient pole, any arc or a combined shape of the chord and any arc; and the arc length between the two salient poles on a rotor (mover) is obtained by subtracting 1 from the phase number C to obtain a difference, multiplying the difference by the width of the stator pole to obtain a product and adding widths of seams between the stator poles with number of the phase number C to the product; and the reluctance motor provided by the invention has the advantages of small motor loss, easiness in assembly and wide use.

Description

technical field [0001] The invention relates to a reluctance motor, in particular to a reluctance motor with a chordal arc mover magnetic circuit. Background technique [0002] The reluctance motors that have entered the known field can be divided into two categories: long magnetic circuit reluctance motors and short magnetic circuit reluctance motors according to the length of the magnetic flux circuit. [0003] The long magnetic circuit reluctance motor refers to two stator poles that are diametrically opposite and opposite in polarity on the circumference, and the magnetic flux generated passes through a certain diameter and the entire circumference to form a magnetic flux circuit. The direction of the loop magnetic flux is radial plus circumferential. [0004] The length of the magnetic circuit is equal to the length of the circumference, plus the length of the diameter, plus twice the length of the stator teeth, plus twice the length of the rotating (moving) teeth, plu...

AI Technical Summary

Problems solved by technology

[0007] The disadvantage of the long magnetic circuit reluctance motor is that the magnetic circuit is long and the loss is large, but it has the advantage of simple assembly

The advantage of the short magnetic circuit reluctance motor is that the magnetic circuit is shortened and the loss is smaller, but the assembly is more complicated than the long magnetic circuit reluctance motor

If considering most motors, the thickness of the silicon steel sheet is larger than the diameter, the flux circuit of the so-called short-circuit reluctance motor is still relatively long

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