Method for producing rotor of invisible magnetic pole permanent magnet generator
A permanent magnet generator and invisible magnetic pole technology, which is applied in the manufacture of stator/rotor bodies, etc., can solve the problems that the magnetic molecules cannot be completely arranged in an orderly manner, the utilization rate of permanent magnet materials is low, and the residual magnetic induction intensity is low, and the structure is compact. , The effect of high material utilization and reliable work
Inactive Publication Date: 2014-03-26
张学义
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Problems solved by technology
[0002] At present, the production method of the permanent magnet generator rotor used in automobiles is to assemble the shaft and a full cylindrical permanent magnet, and then magnetize the cylindrical permanent magnet in a radial direction to form a permanent magnet with N poles and S poles arranged at intervals. For the magnetic rotor, during the magnetization process, the magnetic molecules cannot be completely arranged in an orderly manner, and the residual magnetic induction intensity is low, and because a part of the permanent magnet material between the magnetic poles of the entire cylindrical permanent magnet does not work, the permanent magnet of the rotor with this structure The material utilization rate is low, and its performance needs to be further improved
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[0007] The present invention will be further described below in conjunction with accompanying drawing:
[0008] The method for producing the rotor of an invisible magnetic pole permanent magnet generator is characterized in that the precision casting method is used to cast a rotor core with a central hole for installing the rotor shaft in the middle and a rotor core with long T-shaped salient poles and short T-shaped salient poles spaced apart from each other on the periphery , the long T-shaped salient pole is 4mm longer than the short T-shaped salient pole, and each short T-shaped salient pole of the rotor core has four pieces of arc-shaped permanent magnet steel with the same inner arc surface as the S pole. Each piece of arc-shaped permanent magnet steel is fixed on the outer arc of the short T-shaped salient pole of the rotor core by non-magnetic screws through the pole shoes. The thickness of the arc-shaped permanent magnet steel and the thickness of the pole shoes are bo...
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The invention provides a method for producing a rotor of an invisible magnetic pole permanent magnet generator and belongs to the technical field of automobile motors and electric appliances. The method comprises the steps that long T-shaped salient poles and short T-shaped salient poles are arranged on the periphery of a rotor iron core, the long T-shaped salient poles and the short T-shaped salient poles are distributed at intervals, four pieces of identical arc permanent magnet steel with the inner arc faces to be S poles are fixed to the short T-shaped salient poles, the S poles, close to the short T-shaped salient poles, of the inner arc faces of the arc permanent magnet steel are led to the outer arc faces of the long T-shaped salient poles respectively, so that the combined invisible magnetic pole rotor with N poles and the S poles arranged at intervals is formed, the N poles and the S poles are arranged at intervals, the two poles of the arc permanent magnet steel are fully used, the material use rate is high, the structure is compact, and work is reliable.
Description
technical field [0001] The invention provides a method for producing a rotor of a permanent magnet generator with invisible magnetic poles, which belongs to the technical field of automobile motors and electrical appliances. Background technique [0002] At present, the production method of the permanent magnet generator rotor used in automobiles is to assemble the shaft and a full cylindrical permanent magnet, and then magnetize the cylindrical permanent magnet in a radial direction to form a permanent magnet with N poles and S poles arranged at intervals. For the magnetic rotor, during the magnetization process, the magnetic molecules cannot be completely arranged in an orderly manner, and the residual magnetic induction intensity is low, and because a part of the permanent magnet material between the magnetic poles of the entire cylindrical permanent magnet does not work, the permanent magnet of the rotor with this structure The material utilization rate is low, and its p...
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IPC IPC(8): H02K15/03
Inventor 张学义高松马清芝杜钦君刘从臻尹红彬
Owner 张学义