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Cylindrical linear switched reluctance motor with permanent magnet ring stator

A technology of switched reluctance motors and ring stators, which is applied in the direction of magnetic circuit shape/style/structure, electromechanical devices, electrical components, etc., and can solve problems such as low utilization rate of effective magnetic flux, reduced mass of movers, and large magnetic flux leakage , to achieve simple and reliable structure, improve tank utilization and reduce consumption

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

In the cylindrical linear switched reluctance motor, the use of the magnetic permeable ring structure can save the iron core yoke, reduce the mass of the mover, and increase the propulsion density, but there are still large magnetic flux leakage, low effective flux utilization and copper loss. high disadvantage

Method used

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  • Cylindrical linear switched reluctance motor with permanent magnet ring stator
  • Cylindrical linear switched reluctance motor with permanent magnet ring stator
  • Cylindrical linear switched reluctance motor with permanent magnet ring stator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] Such as figure 1 As 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 permanent magnetic rings is Nm=6, and the number of magnetic conducting 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...

Embodiment 2

[0064] 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) The forming methods of the stator core are different; 4) The shapes of the permanent magnet rings are different. 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 mover barrel Qs=8, the permanent The number of magnetic rings is Nm=8, and the number of magnetically permeable rings contained in the mover cylinder is Ns≥7. This embodiment includes a non-magnetically permeable mover sleeve 1, a mover magnetically permeable ring 2 and a non-magnetically permeable mover sleeve 1 Spli...

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Abstract

The invention discloses a permanent magnet ring stator cylindrical linear switch reluctance motor which comprises a rotor cylinder and a stator cylinder. The rotor cylinder comprises a rotor magnet guide ring and a non-magnet-guide rotor sleeve, the rotor guide magnet ring is fixed on the non-magnet-guide rotor sleeve or is coaxially spliced with the non-magnet-guide rotor sleeve to form the rotor cylinder . The stator cylinder comprises a stator iron core which is once formed or is provided with a plurality of parts which are spliced in the axial direction. The stator iron core is provided with rotor teeth, an annular stator groove and a rotor yoke part. According to the permanent magnet ring stator cylindrical linear switch reluctance motor, the permanent magnet ring and a stator coil are used for together providing exciting flux, the useful flux utilization rate is improved, a rotor yoke part is omitted, the amount of the used materials of the motor iron core is lowered, the utilization rate of the iron core materials is improved, only one set of coil is placed in the annular stator groove, phase insulation is omitted, the manufacturing process is simplified, the groove utilization rate is improved, and the advantages of being high in propulsion density, simple and reliable in structure and the like are achieved.

Description

technical field [0001] The invention relates to a cylindrical motor, in particular to a cylindrical linear switched reluctance motor with a permanent magnet ring stator. 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, th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K41/03H02K1/17H02K1/16
Inventor 王道涵
Owner SHANDONG UNIV
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