An arc-shaped axial magnetic circuit reluctance linear resolver
A rotary transformer, axial magnetic circuit technology, applied in the direction of transformer, magnetic circuit rotating parts, magnetic circuit shape/style/structure, etc., can solve the problem of limited circumferential space, achieve small circumferential space, save axial space, The effect of reducing the volume
Active Publication Date: 2017-02-15
XIAN MICROMOTOR RES INST
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Problems solved by technology
For systems with strict requirements on axial dimensions and limited circumferential space, the above two magnetic circuit structures have obvious weaknesses
Method used
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[0023] The present invention is described in further detail below in conjunction with accompanying drawing:
[0024] see figure 1 , the present invention includes: an arc-shaped stator 1, and an arc-shaped rotor 2 capable of moving along the arc of the stator 1, the rotor 2 is arranged inside the stator 1, or arranged outside the stator 1 to form an outer rotor structure. see figure 2 , the stator includes stator lower section 1-3, stator middle section 1-2, stator upper section 1-1 arranged from bottom to top, stator upper section 1-1, and stator middle section 1-2 respectively have several slots at the same position along the radial direction, A tooth-like structure is formed, and the tooth-like structure is arranged in a ring along a circular arc. The inner diameter of the middle section 1-2 of the stator is larger than that of the upper section 1-1 of the stator, forming an annular groove; the inner diameter of the lower section 1-3 of the stator is the same as that of t...
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The invention belongs to the technical field of motors, and particularly relates to a circular-arc-shaped axial magnetic circuit magnetic-resistance-type linear rotary transformer. The circular-arc-shaped axial magnetic circuit magnetic-resistance-type linear rotary transformer comprises a circular-arc-shaped stator and a rotor capable of conducting circular motion along the stator. The stator comprises a lower stator segment, a middle stator segment and an upper stator segment, wherein the lower stator segment, the middle stator segment and the upper stator segment are arranged from bottom to top. The upper stator segment and the middle stator segment are provided with a plurality of grooves at the same positions in the radial direction. The inner diameter of the middle stator segment is larger than that of the upper stator segment. The grooves of the middle stator segment are internally provided with first output windings and second output windings, and the first output windings and the second output windings are connected in series in a groove-by-groove winding mode. An exciting winding is arranged outside the middle stator segment. A gap is reserved between the stator and the rotor. The circular-arc-shaped axial magnetic circuit magnetic-resistance-type linear rotary transformer is small in size and suitable for being installed in the limited circumferential space.
Description
technical field [0001] The invention belongs to the technical field of motors, and in particular relates to an arc-shaped axial magnetic circuit reluctance linear rotary transformer. Background technique [0002] Reluctance linear resolvers are usually realized in two styles. One is an E-type structure, when the angles between the pole arcs of the three core columns are all 2α m , its linear range is ±α m [1] , which requires at least 6α m The above angle range can achieve ±α m range of linear output. The other is a full circle structure, and the linear output range depends on the number of stator slots and the number of protruding teeth of the rotor. Both structures are of radial magnetic circuit type, which determines the axial placement of the input winding and output winding, the winding ends occupy axial space, and the axial dimension is relatively large. For systems with strict requirements on axial dimensions and limited circumferential space, the above two mag...
Claims
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IPC IPC(8): H01F38/18H02K1/12H02K1/22H02K1/02
Inventor 沈桂霞南悦张亮
Owner XIAN MICROMOTOR RES INST