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Cylindrical synchronous reluctance linear motor

A linear motor and synchronous reluctance technology, which is applied in the direction of electromechanical devices, electrical components, electric components, etc., can solve the problems of low utilization rate of windings, large torque ripple of synchronous reluctance motors, and high cost of permanent magnet linear motors

Pending Publication Date: 2022-07-12
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Flat linear motors have the problem of low winding utilization, permanent magnet linear motors have the problem of high cost, and synchronous reluctance motors have the problem of large torque ripple

Method used

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  • Cylindrical synchronous reluctance linear motor
  • Cylindrical synchronous reluctance linear motor
  • Cylindrical synchronous reluctance linear motor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] This embodiment provides a cylindrical synchronous reluctance linear motor.

[0033] A cylindrical synchronous reluctance linear motor, comprising: a casing, an armature iron core, a magnetic barrier body, a magnetic barrier and a shaft, wherein the armature iron core is provided with a slot along the vertical direction of the shaft and an armature winding is placed in the slot. Structural body, the magnetic barrier is a structure composed of a plurality of magnetic barriers, and an air gap is set between the magnetic barrier and the armature core; wherein, the magnetic barrier comprises magnetically conductive materials arranged in a regular distribution and non-magnetic materials;

[0034] During use, the armature iron core and the magnetic barrier body perform reciprocating relative movement along the axial direction; the reciprocating relative movement is realized by connecting the casing and the shaft with the outside world to maintain a fixed position.

[0035] A...

Embodiment approach

[0039] As one or more embodiments, the armature core 2 is provided with a certain number of stator slots in the axial direction, and the armature windings 5 ​​are arranged in the stator slots.

[0040] In this embodiment, the casing 1 and the armature core 2 are fixedly connected or integrally arranged, and the shaft 4 is fixedly connected or integrally arranged with the magnetic barrier 5 .

[0041] In this embodiment, the left end cover 10 and the right end cover 11 are fixedly connected to or integrated with the casing 1 .

[0042]As one or more embodiments, the casing 1 adopts a non-magnetic conductive material.

[0043] In this embodiment, the axial length of the armature core 2 is smaller than the axial length of the magnetic barrier 5 .

[0044] In this embodiment, reciprocating relative motion can be performed between the armature core 2 and the magnetic barrier 5 along the axial direction;

[0045] As one or more implementations, the relative movement is achieved by...

Embodiment 2

[0048] This embodiment provides a cylindrical synchronous reluctance linear motor.

[0049] The difference between this embodiment and the first embodiment is that the length of the armature core along the axial direction is greater than the length of the magnetic barrier body along the axial direction.

[0050] like image 3 As shown, the magnetic barrier built-in cylindrical synchronous reluctance linear motor of this embodiment includes a magnetic barrier 7, specifically, a magnetically permeable material 8 and a non-magnetically permeable material 9; the magnetically permeable material 8 and the non-magnetically permeable material 9 The materials 9 are regularly distributed and arranged to form a cylindrical magnetic barrier.

[0051] In this embodiment, the armature core 2 is arranged in the casing 1 , the magnetic barrier 7 is combined into a magnetic barrier 5 , and the shaft 4 is arranged inside the magnetic barrier 5 .

[0052] In this embodiment, an air gap is set ...

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Abstract

The invention provides a cylindrical synchronous reluctance linear motor, which comprises a casing, an armature core, a magnetic barrier body, magnetic barriers and a shaft, the armature core is provided with a groove along the vertical direction of the shaft, a structural body of an armature winding is placed in the groove, the magnetic barrier body is a structural body formed by combining a plurality of magnetic barriers, and an air gap is arranged between the magnetic barrier body and the armature core; wherein the magnetic barrier comprises a magnetic conductive material and a non-magnetic conductive material which are regularly distributed and arranged; during use, the armature iron core and the magnetic barrier body do reciprocating relative motion along the axial direction; and the reciprocating relative motion is realized by respectively connecting the shell and the shaft with the outside and keeping the position fixed. According to the invention, the armature winding can be fully utilized, the defect of low armature winding utilization rate of the traditional linear motor is overcome, the characteristics of the synchronous reluctance motor are combined, the production cost of the motor is reduced, the torque pulsation is reduced, the electromagnetic performance is excellent, and the motor has the advantages of high power torque density, high efficiency and the like.

Description

technical field [0001] The invention belongs to the field of reluctance motors, in particular to a cylindrical synchronous reluctance linear motor. Background technique [0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art. [0003] A linear motor is a power device that directly converts electrical energy into mechanical energy for linear motion. Linear motors have been used more and more in industrial engineering, logistics systems, transportation and military equipment due to their advantages of high speed, high reliability and low noise. In the 1920s, some scholars put forward the concept of synchronous reluctance motor, a motor that generates torque through the difference between the reluctance of the direct axis and the quadrature axis of the motor. At present, the widely used linear motors are mainly induction linear motors and permanent magnet linear motors. Compared...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K41/03
CPCH02K41/03
Inventor 王秀和李长斌
Owner SHANDONG UNIV
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