Composite soft magnetic powder magnetic conducting material for slot wedge of electric machine and preparation thereof

A technology of magnetic conductive material and motor slot wedge, applied in the direction of inorganic material magnetism, electrical components, electromechanical devices, etc., can solve the problems of motor eddy current loss rise, shedding and cracking, low mechanical properties, etc., to reduce additional losses and eddy currents Loss, effect of high mechanical properties
CN1949406AInactive Publication Date: 2007-04-18SICHUAN UNIV
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
SICHUAN UNIV
Publication Date
2007-04-18
Estimated Expiration
Not applicable ยท inactive patent

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Abstract

The invention relates to a dynamo using slot wedge using compound soft magnetic powder magnetic conductance material. The powder is the compound soft magnetic powder compounded from MnZn ferrite powder and reduced iron powder or carbonyl iron dust. The radio is 10-90wt% high resistivity magnetic powder, and 10-90wt% high magnetic permeability magnetic powder. Adding certain quantity glass fiber into compounded magnetic powder layer, separating structure would be formed. The invention could decrease supplementary load loss of dynamo, as well as eddy current loss, and improve efficiency of dynamo.
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Description

technical field

[0001] The invention belongs to the field of soft magnetic materials, in particular to a composite soft magnetic powder magnetic conduction material for motor slot wedges. Background technique

[0002] As we all know, the total loss of the motor is composed of copper loss, iron loss, mechanical loss and additional loss. Among them, the iron loss is mainly composed of hysteresis loss and eddy current loss, and the additional loss is composed of pulse vibration loss and surface loss. At present, domestic and foreign motor research and development institutions are looking for ways to reduce motor loss and improve motor efficiency from the perspective of motor structure and motor materials. From the perspective of motor materials, the most effective method is to use magnetic slot wedges made of magnetically permeable materials to replace the insulating slot wedges in the original motor stator slot structure, and use the magnetic permeabil...

Claims

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