Cylindrical magnetic-pole combined linear generator

A linear generator and magnetic pole technology, applied in the direction of electrical components, electromechanical devices, etc., can solve the problems of large jitter, high harmonic content of motors, and low output power quality, and achieve small jitter, high energy conversion rate, and increased stability and the effect of efficiency

Active Publication Date: 2015-03-25
浙江万果科技有限公司
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  • Summary
  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is that the vibration of the existing permanent magnet linear motor is large, the harmonic content of the air gap magnetic flux density waveform of the motor is large, and the output power quality is not high

Method used

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  • Cylindrical magnetic-pole combined linear generator
  • Cylindrical magnetic-pole combined linear generator
  • Cylindrical magnetic-pole combined linear generator

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Embodiment Construction

[0025] Such as Figure 1-2 As shown, the present invention provides a cylindrical magnetic pole combination non-cogging linear generator. The permanent magnet generator mainly includes a stator core 1, a concentrated cake-type stator winding 2; a mover core 3, and a magnetization direction of 90°, etc. Poor T-shaped permanent magnet rings 4 are staggeredly installed on the mover iron core shaft. The permanent magnet rings are made of NdFeB permanent magnet materials. The stator core is made of silicon steel sheets. Alloy.

[0026] There is an air gap 8 between the stator structure and the mover structure, and a sealing ring 9 and a stator end cover 10 are arranged outside the stator core structure. The stator end cover is made of non-magnetic material and its outer diameter is larger than that of the stator core, which is convenient for fixing motor. A compression spring device 11 is installed between the stator end cover and the mover end cover 12 .

[0027] Fix the non-pr...

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Abstract

The invention discloses a cylindrical magnetic-pole combined linear generator which comprises a stator structure and a rotor structure. The stator structure comprises a stator iron core and a stator winding, wherein the stator iron core is connected with the stator winding in a gapless and sleeving mode. The rotor structure comprises a rotor iron core and a permanent magnet ring assembly. The permanent magnet ring assembly is pasted to the periphery of the rotor shaft iron core through a surface pasting type structure. The stator structure and the rotor structure are arranged at an interval. The rotor structure is located in the stator structure. Both the stator structure and the rotor structure are of a cylindrical structure. The stator iron core is of a slotless structure. The cylindrical magnetic-pole combined linear generator is small in jitter degree, good in air gap magnetic flux density sine performance, high in output electric energy quality, and especially suitable for being used in direct-drive power generation systems under the sea conditions of small waves near the coast and islands.

Description

technical field [0001] The invention relates to a linear motor, in particular to a cylindrical magnetic pole combination non-cogging linear generator, which is mainly used in the field of wave power generation devices or linear motion driven power generation. Background technique [0002] Wave energy power generation has the advantages of clean and abundant energy, simple energy conversion principle, and relatively low cost. The direct-drive wave energy generation device using a linear motor, omitting the energy conversion device in the middle of the traditional power generation system, improves the utilization rate of wave energy, and has attracted the attention of scientific researchers from all over the world. [0003] At present, the permanent magnet linear generator with cogging structure has a large side force or cogging positioning force, resulting in large energy loss of the power generation device, low power generation efficiency, and vibration of the mechanical str...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K35/02
Inventor 张静孙建军刘旭明鞠全勇周扩建周洪
Owner 浙江万果科技有限公司
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