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Tooth-slot salient permanent magnet composite array linear motor

A composite array and linear motor technology, applied in the field of electromagnetic devices, motors and electrical appliances, can solve the problems of high cost, low power index, large volume, etc., to eliminate magnetic flux leakage, reduce volume and manufacturing cost, increase power and output Effect

Inactive Publication Date: 2016-03-16
HENAN POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is the engineering application bottleneck problem of existing electromagnetic devices including permanent magnet motors with low output power, low power index, large volume and high cost

Method used

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  • Tooth-slot salient permanent magnet composite array linear motor
  • Tooth-slot salient permanent magnet composite array linear motor
  • Tooth-slot salient permanent magnet composite array linear motor

Examples

Experimental program
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Embodiment Construction

[0048] Such as Figure 1-Figure 13As shown, the cogged salient pole permanent magnet array is composed of at least one set of cogged salient pole permanent magnet composite array units mounted sequentially, and the cogged salient pole permanent magnet composite array unit is composed of slot convex iron 3, magnet array 2 1. Composed of an iron core, the iron core is provided with grooves, the two sides of the grooves are teeth protrusions 4, the rest is the yoke 5, the groove protrusions 3 are located in the middle of the groove and are close to the outer surface of the magnet array 2 The magnet array 2 is composed of at least one group of magnets around the groove mounted along the inner wall of the groove. The magnet array 2 gathers magnetic poles with the same polarity on the surface of the protruding iron 3 at the groove portion, and forms poles on the surface of the protruding iron 4 at the tooth portion. opposite magnetic poles. The iron cores in the adjacent alveolar s...

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Abstract

The invention belongs to the electric appliance fields of an electromagnetic apparatus and a motor, and specifically relates to a tooth-slot salient permanent magnet composite array linear motor. A secondary tooth-slot salient permanent magnet array comprises a slot part convex iron 3, a magnet array 2 and a tooth part convex iron 4; the tooth part convex iron 4 is formed by iron core teeth with a yoke part 5; the magnet array 2 is formed by slot peripheral magnets pasted along the inner wall of the iron core slot; the slot part convex iron 3 is positioned on the other surface, tightly adhered to the magnet array 2, in the iron core slot. By adoption of the tooth-slot salient permanent magnet composite array linear motor, the secondary internal flux leakage can be greatly suppressed or even eliminated; under the condition of a same volume and a same manufacturing cost, the power and output of the motor can be greatly improved; or under a condition of the same power, the volume and the manufacturing and use cost of the motor can be dramatically reduced; and therefore, the tooth-slot salient permanent magnet composite array linear motor is particularly suitable for engineering application occasions of high power permanent magnet linear motors.

Description

technical field [0001] The invention belongs to the field of electrical appliances and electromagnetic devices, and in particular relates to a linear motor with cogged salient pole permanent magnet composite array. Background technique [0002] As an electromagnetic device, permanent magnet motor has been widely used in various industries. It is mainly divided into two categories: permanent magnet rotary motor and permanent magnet linear motor. Permanent magnet rotating motors can be divided into surface type (also divided into surface protruding type and surface insertion type) and built-in type (also divided into radial type, tangential type, hybrid type, etc.) according to the arrangement of the permanent magnets of the rotor. Magnetic circuit structure, the former has a simple structure, but the equivalent electromagnetic air gap is large, the power density is low, and it cannot be self-started. The latter has a higher power density than the former, but the magnetic flux...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K41/03
CPCH02K41/031
Inventor 许孝卓汪旭东封海潮黄文英
Owner HENAN POLYTECHNIC UNIV
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