Efficient three-phase slot-free permanent magnet motor

A permanent magnet motor, high-efficiency technology, used in synchronous motors with stationary armatures and rotating magnets, electrical components, electromechanical devices, etc., can solve the problems of low power density, low winding factor, temperature rise, etc. Winding factor, the effect of improving output torque and positioning accuracy, and improving positioning accuracy

Active Publication Date: 2011-03-02
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the shortcomings of existing slotless motors, such as low winding factor, low power density, large

Method used

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  • Efficient three-phase slot-free permanent magnet motor
  • Efficient three-phase slot-free permanent magnet motor
  • Efficient three-phase slot-free permanent magnet motor

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0010] Specific embodiment 1: The high-efficiency three-phase slotless permanent magnet motor described in this embodiment is a cylindrical rotating motor, which is composed of an armature, a rotor, and an air gap; the armature is composed of an armature core 2, windings and The coil frame is composed of the armature core 2 in a circular ring shape, and the coil frame is composed of a thin-walled tube 5 and 6p thin partitions 1, and p is the number of pole pairs of the permanent magnet of the motor rotor, p≥2, the thin-walled tube 5 Coaxial with the armature core 2 and fixed on the armature core 2 near the rotor side, the thin partitions 1 are elongated, and each thin partition 1 is radial with the axis of the armature core 2 as the axis of symmetry Evenly distributed and fixed on the side wall of the thin-walled cylinder 5 near the rotor side, and all the planes of the thin partitions 1 intersect the axis of the armature core 2, and the two adjacent thin partitions 1 are formed...

Example Embodiment

[0013] Embodiment 2: This embodiment is a further limitation to the high-efficiency three-phase slotless permanent magnet motor described in Embodiment 1. In this embodiment, a plurality of skeletons are evenly distributed along the axial direction on the side of the stator core adjacent to the rotor. The positioning groove, the positioning rib is embedded in the positioning groove, so that the coil bobbin is fixed between the positioning rib and the skeleton positioning groove.

[0014] In this embodiment, a device for fixing the coil bobbin is added, so that the coil bobbin can be stably fixed on the stator core.

Example Embodiment

[0015] Specific implementation mode 3: The high-efficiency three-phase slotless permanent magnet linear motor described in this embodiment is a flat plate motor, which is composed of a primary, a secondary and an air gap; the secondary of the motor is a bilateral structure, and each side of the secondary It is composed of a yoke plate and a permanent magnet. The primary is located between two secondary plates. The primary includes a coil, a coil bobbin and a primary output plate; the coil bobbin is composed of a thin plate and a number of thin partitions. The thin plate is parallel to the secondary and thin The partitions are elongated, each thin partition is perpendicular to the thin plate at equal intervals along the moving direction of the mover, and is fixed on the thin plate, and a row line groove is formed between two adjacent thin partitions, which is 3 times the row line. The slot pitch is equal to the secondary pole pitch. All the coils have the same shape and are compo...

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PUM

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Abstract

The invention provides an efficient three-phase slot-free permanent magnet motor, belonging to the field of a motor, which solves the shortcomings of low winding factor, low power density, high loss and high temperature rise of the existing slot-free motor. When the motor is a cylinder type rotary motor, an armature iron core is circular; a coil framework fixed at the side of the armature iron core close to the rotor is formed by a thin-wall cylinder and thin clapboards; a plurality of thin clapboards are evenly and fixedly distributed in the thin-wall cylinder in a radial pattern by taking the axis of the armature iron core as a symmetrical axis; a wiring slot is formed between two adjacent thin clapboards; the pitch of each coil in the winding is the distance between the adjacent four thin clapboards in the coil framework; half of end portion bending coils in 3p coils are orderly and adjacently embedded in the wiring slot formed by the thin clapboards; and the two ends both bend towards the stator iron core side; and the other coils are orderly and adjacently embedded in the wiring slot formed by the other thin clapboards, wherein effective sections of the adjacent coils in the adjacent two flat coils are positioned in two effective sections of the same end portion bending coil.

Description

technical field [0001] The invention relates to a high-efficiency three-phase slotless permanent magnet motor, which belongs to the field of motors. Background technique [0002] The permanent magnet brushless motor with slotless structure integrates permanent magnet, brushless and slotless, which fundamentally solves the problem of low output, large torque fluctuation, large hysteresis and eddy current loss, magnetic saturation, Noisy, low efficiency and slow response problems. Through the use of permanent magnet excitation, the excitation coil on the rotor is eliminated, which is highly efficient and energy-saving; the brushless structure realizes no brush, no commutator, no spark, and high power-to-weight ratio; the slotless structure has a large space for winding distribution and heat dissipation Good, the armature copper loss is small, the iron core is not saturated, the iron loss (eddy current, hysteresis loss) is small, the cogging effect is eliminated, the cogging t...

Claims

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Application Information

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IPC IPC(8): H02K21/14H02K41/03H02K3/24
Inventor 寇宝泉曹海川赵斌超张达
Owner HARBIN INST OF TECH
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