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High dynamic linear permanent magnet synchronous motor with double-armature structure

A permanent magnet synchronous motor, high dynamic technology, applied to electrical components, electromechanical devices, etc., can solve the problems of poor dynamic response and high quality of motors

Active Publication Date: 2012-12-05
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The linear motor has no limit to the stroke, it can move the primary or the secondary, but the dynamic response of the motor is poor due to the large mass of the mover, whether it is the primary or the secondary.

Method used

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  • High dynamic linear permanent magnet synchronous motor with double-armature structure
  • High dynamic linear permanent magnet synchronous motor with double-armature structure
  • High dynamic linear permanent magnet synchronous motor with double-armature structure

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0007] Specific implementation mode one: combine Figures 1 to 7 Describe this embodiment, this embodiment is composed of two primary 1 and a secondary 2, the secondary 2 is sandwiched between two parallel primary 1, there is an air gap between the secondary 2 and the two primary 1; The two primary 1s described above have the same structure, and each primary 1 is composed of a primary winding 11 and a primary iron core 12; the secondary 2 is composed of a plurality of permanent magnets 21 and a secondary substrate 22; on the surface of the primary iron core 12 air gap side There is a row of teeth parallel to each other along the direction of motor movement. The teeth are slots. The coil of the primary winding 11 is a rectangular coil. The rectangular coil is wound and fixed on the teeth of the primary core 12. The two effective sides of the rectangular coil are respectively embedded Placed in the slot of the primary core 12, the pitch of the rectangular coil is 1; the rectangu...

specific Embodiment approach 2

[0008] Specific implementation mode two: combination Figure 4 and Figure 5 Describe this embodiment, the difference between this embodiment and specific embodiment 1 is that when the number of columns M of permanent magnets 21 along the motor movement direction is 1, the secondary substrate 22 has a through hole with the same shape as the permanent magnet 21 along the width direction , The permanent magnet 21 is embedded in the through hole. Other compositions and connection methods are the same as those in Embodiment 1. The acute angle θ between the long side and the short side of the parallelogram flat permanent magnet is 0°~3°, such as Figure 5 shown.

specific Embodiment approach 3

[0009] Specific implementation mode three: combination Figure 6 This embodiment is described. The first difference between this embodiment and the specific embodiment is that when the number M of columns of permanent magnets 21 along the direction of motor movement is an even number, the permanent magnets 21 of even rows are relative to the secondary substrate 22 along the centerline of the direction of motor movement. Symmetrically arranged, the secondary substrate 22 has a through hole with the same shape as the permanent magnet 21 along the width direction, and the permanent magnet 21 is embedded in the through hole, or the surface of the secondary substrate 22 on the air gap side is respectively provided with a The same shape is a groove, and the permanent magnet 21 is embedded in the groove. Other compositions and connection methods are the same as those in Embodiment 1. The angle formed by the adjacent long sides of every two adjacent permanent magnets 21 perpendicular...

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Abstract

The invention discloses a high dynamic linear permanent magnet synchronous motor with a double-armature structure, which relates to the field of motors and can not only meet thrust density but also improve dynamic response. A column of parallel teeth are arranged on the surface of the air gap side of a core along a direction of motion, grooves are formed between every two adjacent teeth. A rectangular winding coil is fixedly wound on the teeth, comprises active sides embedded into the grooves, and has the pitch of 1. The coils at the opposite positions of the two sides of a secondary part areof the same phase, and produce magnetic lines of force with the same direction. An armature reaction magnetic flux vertically passes through the secondary part. The short edges of plate permanent magnets with parallelogram sections are parallel to the direction of motion, a long edge forms the included angle Theta of more than 85 degrees and less than or equal to 90 degrees with the short edge, and the section is parallel to the surface of the air gap side of a substrate. N columns of permanent magnets are embedded to the substrate along the direction of motion, the permanent magnets of each column are embedded in parallel in a way of N and S alternation, and every two adjacent permanent magnets vertical to the direction of motion have the same magnetizing direction. The widths of the permanent magnets at the front and rear ends of the secondary part are less than those of the permanent magnets on a middle part, and the effective length of the secondary part is greater than a core length and less than a doubled core length. The high dynamic linear permanent magnet synchronous motor with the double-armature structure is applied to short strokes.

Description

technical field [0001] The invention relates to the field of motors, in particular to a linear permanent magnet synchronous motor with a double armature structure. Background technique [0002] Figure 8 Shown is a Chinese patent with a publication number of CN101009454A and an application date of August 1, 2007, a bilateral flat three-phase linear permanent magnet synchronous motor, and its patent number is ZL200710071704.8. The motor is a two-sided plate-shaped three-phase linear permanent magnet synchronous motor with a fractional slot structure. This motor structure can not only reduce the positioning force caused by the cogging effect, but also take into account the tooth pitch τ of the motor. t and polar distance τ p In addition, the manufacturing process of the motor is simple, the end of the winding is short, the insulation is easy, the efficiency of the motor is high, and the cost is low, so the performance of the motor is greatly improved. The linear motor has no...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K16/04
Inventor 寇宝泉郭守仑
Owner HARBIN INST OF TECH