A high-performance large-arc permanent magnet ferrite tile

Abstract

The invention discloses a high-performance and large-radian permanent magnetic ferrite magnetic shoe and relates to the field of permanent magnets. The high-performance and large-radian permanent magnetic ferrite magnetic shoe comprises a magnetic shoe block body, wherein the magnetic shoe block body comprises an outer arc face, an inner arc face and two straight sides, the magnetic shoe block body is of an inward-concave type, the radian of the inner arc face is designed to be between 72 degrees and 90 degrees, the side, close to the inner arc face, in the magnetic shoe block body is provided with a CoPt-based nanometer permanent magnet alloy thin film layer, the CoPt-based nanometer permanent magnet alloy thin film layer is connected with the magnetic shoe block body in an inserted mode, the magnetic induction area is increased due to the adoption of the large inner arc face, and in combination of the application of the CoPt-based nanometer permanent magnet alloy thin film layer, the magnetic shoe can have both high residual magnetic induction intensity and high inner coercive force; because an epoxy resin layer is arranged outside the magnetic shoe block body, on the one hand, the mechanical strength of the magnetic shoe can be improved, and on the other hand, because epoxy resin has excellent chemical stability and the magnetic shoe block body is coated with the epoxy resin layer, corrosion caused by direct contact between the magnetic shoe block body and air can be eradicated through the epoxy resin.

Description

technical field [0001] The invention relates to the field of permanent magnets, in particular to a high-performance large-arc permanent magnet ferrite tile. Background technique [0002] Magnetic tile is a tile-shaped magnet mainly used in permanent magnet motors in permanent magnets. Magnetic tiles are mainly used in permanent magnet DC motors. Unlike electromagnetic motors that generate magnetic potential sources through excitation coils, permanent magnet motors are based on Permanent magnetic materials produce a constant source of magnetic potential. Permanent magnetic tiles instead of electric excitation have many advantages, such as simple structure, convenient maintenance, light weight, small size, reliable use, less copper consumption, low copper consumption, and low energy consumption. At present, the magnetic tiles on the market The inner and outer arcs are generally consistent, and it is difficult to improve the residual magnetic induction and internal coercive fo...

AI Technical Summary

Problems solved by technology

Permanent magnetic tiles instead of electric excitation have many advantages, such as simple structure, convenient maintenance, light weight, small size, reliable use, less copper consumption, low copper consumption, and low energy consumption. At present, the magnetic tiles on the market The inner and outer arcs are generally consistent, and it is difficult to improve the residual magnetic induction and internal coercive force. If the differential transformation of the inner and outer arcs will directly affect the mechanical properties of the magnetic tile, how to coordinate the two is an urgent need to solve

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