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Magnetic ring mover cylindrical linear switched reluctance motor

A technology of switched reluctance motors and magnetic rings, applied in the direction of magnetic circuit shape/style/structure, electromechanical devices, electrical components, etc. Problems such as low utilization rate of materials

Active Publication Date: 2016-03-09
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the characteristics of the reluctance torque, the propulsive force density of the motor is low. Therefore, it is an urgent problem to be solved to improve the propulsive force density of the cylindrical linear motor.
In addition, the existing cylindrical linear switched reluctance motor has a mover yoke, the motor mover is heavy, only a part of the magnetic circuit is effectively used when the winding is energized, the utilization rate of the ferromagnetic material of the motor is low, and the power density and propulsion density are low

Method used

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  • Magnetic ring mover cylindrical linear switched reluctance motor
  • Magnetic ring mover cylindrical linear switched reluctance motor
  • Magnetic ring mover cylindrical linear switched reluctance motor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Such as figure 1As shown, the number of motor phases in this embodiment is m=3, the number of stator poles Pt=6, the number of mover poles Ps=4, the number of teeth included in the stator barrel is Nt=7, and the number of annular stator slots included in the stator barrel is Qs= 6. The number of magnetic permeable rings contained in the mover cylinder is Ns≥5. This embodiment includes a non-magnetic mover sleeve 1, a mover magnetic ring 2 is placed inside the non-magnetic mover sleeve 1, and the mover magnetic ring 2 is uniformly fixed on the non-magnetic mover sleeve in the axial direction. 1, the axial cross-section of the mover magnetic ring 2 is trapezoidal, and the bottom is processed into a special shape so as to be fixed with the non-magnetic mover sleeve 1, and the stator core 3 is arranged on the outside of the non-magnetic mover sleeve 1 , the stator core 3 and the non-magnetic mover sleeve 1 are coaxially installed, the stator core 3 is spliced ​​from multip...

Embodiment 2

[0048] Such as figure 2 As shown, the difference between Embodiment 2 and Embodiment 1 lies in: 1) the number of poles of the mover and the mover of the motor is different; 2) the installation methods of the magnetically conductive ring of the mover and the sleeve of the non-magnetically conductive mover are different; 3) Stator cores are formed in different ways. In this embodiment, the number of motor phases m=4, the number of stator poles Pt=8, the number of mover poles Ps=6, the number of stator teeth contained in the stator barrel Nt=9, the number of annular stator slots contained in the stator barrel Qs=8, the mover The number of magnetically permeable rings contained in the barrel is Ns≥7. This embodiment includes a non-magnetically permeable mover sleeve 1. The axial section of the magnetic ring 2 is trapezoidal, and the stator core 3 is arranged on the outside of the non-magnetic rotor sleeve 1. The stator core 3 and the non-magnetic rotor sleeve 1 are coaxially ins...

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Abstract

The invention discloses a magnetic ring rotor cylindrical straight-line switch reluctance machine which comprises a stator cylinder and a rotor cylinder. The rotor cylinder comprises a rotor magnetic ring and a rotor non-magnetic sleeve. The rotor magnetic ring is fixed to the rotor non-magnetic sleeve or the rotor magnetic ring and the rotor on-magnetic sleeve are spliced coaxially to form the rotor cylinder. The stator cylinder comprises a stator iron core, the stator iron core is formed in one time or formed by splicing a plurality of parts in the axial direction, and the stator iron core is provided with stator teeth, annular stator grooves and concentric and coaxial stator windings placed inside the annular stator grooves and wound around the central axis of the stator cylinder. According to the magnetic ring rotor cylindrical straight-line switch reluctance machine, a rotor yoke part is omitted, the use quantity of materials for manufacturing the iron core of a motor is reduced, the utilization rate of the iron core materials is improved, only one set of windings is placed inside the annular stator grooves, insulation between phases is omitted, the manufacturing technology is simplified, the utilization rate of the grooves is improved, and the magnetic ring rotor cylindrical straight-line switch reluctance machine has the advantages of being high in propulsive force intensity, simple and reliable in structure and the like.

Description

technical field [0001] The invention relates to a cylindrical motor, in particular to a cylindrical linear switched reluctance motor with a magnetic conduction ring mover. Background technique [0002] The linear motor directly converts electrical energy into mechanical energy of linear motion, which not only omits the intermediate transmission mechanism, but also reduces system loss, and is very suitable for linear direct drive systems. [0003] The flat linear motor is an open flat structure with both ends broken. There are transverse breaks on both sides of the motor core, which has obvious lateral edge effects, resulting in discontinuous distribution of the magnetic field in the motor and affecting the operating performance of the motor. The winding mode of the flat linear motor is similar to that of the rotary motor, and there are end windings. When the length of the iron core is long and the distributed winding form is used, the utilization rate of the winding is low, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K41/03H02K1/34H02K1/16
Inventor 王道涵
Owner SHANDONG UNIV
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