Independent-winding double-side plate permanent magnet linear motor

A permanent magnet linear motor and flat-plate technology, applied in the direction of electrical components, electromechanical devices, electric components, etc., can solve the problems of low acceleration, low thrust density, etc., and achieve increased electromagnetic load, increased thrust density, and simple winding process Effect

Active Publication Date: 2016-11-09
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide independent winding double-sided flat permanent magnet linear motor, which solves the problems of low thrust density and low acceleration of the existing permanent magnet synchronous linear motor

Method used

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  • Independent-winding double-side plate permanent magnet linear motor
  • Independent-winding double-side plate permanent magnet linear motor
  • Independent-winding double-side plate permanent magnet linear motor

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Embodiment Construction

[0021] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0022] Such as figure 1 As shown, it is a schematic diagram of a two-dimensional structure of a single-phase motor according to an embodiment of the present invention. This embodiment is a single-phase motor, including primary, secondary and two air gaps. The primary consists of the armature winding 1, the primary permeable core 2, the permanent magnet array 3 and the gap 4 between the permanent magnets. The primary permeable core 2 has an annular opening structure, and a large opening slot 8 structure is formed inside, and the permane...

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Abstract

The invention discloses an independent-winding double-side plate permanent magnet linear motor, which comprises primary sides, a secondary side and air gaps. Each primary side comprises an armature winding, a primary magnetic-conductive iron core and a permanent magnet array. The two primary side assemblies are arranged at the two sides of the secondary side respectively to form a double-side structure. The primary magnetic-conductive iron core forms a big open slot structure, and the permanent magnet array is arranged in the slot mouth. One side, opposite to the corresponding open slot, of each primary magnetic-conductive iron core is provided with the armature winding; and the armature windings of the two primary sides at the two sides of the secondary side are same-phase windings, but electrical angle difference is 180 degrees. The secondary side is formed by magnetic-conductive iron cores having a salient pole structure, and gaps. The two air gaps are formed between the two primary sides and the secondary side respectively. The motor is a single-phase motor or a multi-phase motor, wherein the multi-phase motor is modular combination of the single-phase motors. Permanent magnets and the armature windings of the permanent magnet linear motor are arranged at the primary sides; through the big open slot structure design, winding heat dissipation is realized helpfully, and through the design of a large electrical load, thrust is improved; and meanwhile, the secondary side is simple in structure and light in weight.

Description

technical field [0001] The invention relates to a double-sided flat permanent magnet linear motor with independent windings, and belongs to the technical field of linear motors. Background technique [0002] The direct transmission technology based on linear motors eliminates the need for intermediate complex transmission mechanisms. It has been applied in linear motion occasions such as machine tools and elevators, and its application fields are gradually expanding to various fields of production and life. However, unlike rotary motor systems, most direct-drive linear motor systems (except for high-speed and high-acceleration linear motors in electromagnetic ejection applications) cannot use high-speed designs to increase power density and reduce volume and mass. Therefore, it is necessary to reduce the volume of linear motors quality, we can only hope to increase the thrust density of the motor. [0003] Improving the thrust density of the motor can be considered from the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K41/03
CPCH02K41/031
Inventor 黄旭珍李静钱振宇谭强
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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