Independent winding bilateral flat permanent magnet linear motor

A permanent magnet linear motor, 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., to achieve increased electromagnetic load, increased thrust density, simple winding process Effect

Active Publication Date: 2018-08-28
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 bilateral flat permanent magnet linear motor
  • Independent winding bilateral flat permanent magnet linear motor
  • Independent winding bilateral flat permanent magnet linear motor

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Embodiment Construction

[0021] The following describes the embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions. The following embodiments described with reference to the accompanying drawings are exemplary, and are only used to explain the present invention, and cannot be construed as limiting the present invention.

[0022] Such as figure 1 Shown 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 a primary, a secondary, and two air gaps. The primary is composed of the armature winding 1, the primary conductor core 2, the permanent magnet array 3 and the gap 4 between the permanent magnets. The primary conductor core 2 has an annular opening structure, and a large opening slot 8 st...

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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 plate type permanent magnet linear motor with independent windings, and belongs to the technical field of linear motors. Background technique [0002] Based on the direct transmission technology of linear motors, the intermediate complicated transmission mechanism is omitted. 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-driven linear motor systems (except for high-speed and high-acceleration linear motors in electromagnetic ejection applications) cannot adopt high-speed designs to increase power density and reduce volume and mass. Therefore, it is necessary to reduce the volume of the linear motor Quality can only be expected to increase the thrust density of the motor. [0003] Increasing the thrust density of the motor can be conside...

Claims

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Application Information

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Patent Type & Authority Patents(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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