Manganese zinc ferrite magnetic core

Abstract

The invention discloses a manganese zinc ferrite magnetic core. The bottom of the magnetic core is square, the joint of the bottom surface and side wall of the magnetic core is designed as a chamfer, the bottom surface of the magnetic core is provided with a groove, the joint of the groove and the bottom surface is designed as a chamfer, and a bulge is formed at the outer edge along the groove of the bottom surface. The groove is arranged on the bottom surface of the magnetic core, the bulge is formed at the chamfer, a friction force between the magnetic core and a setter plate is reduced when the magnetic core is sintered, and resistance received by contraction of the magnetic core when the magnetic core is sintered is reduced, so that the density difference of the magnetic core caused by a big chamfer is reduced, and product deformation is reduced. A contact surface between the magnetic core and the setter plate is small when the magnetic core is sintered, so that zinc volatilization caused by contact between the magnetic core and the setter plate is reduced, less cavities are produced inside the magnetic core as zinc on the surface of the magnetic core is volatilized, and the mechanical strength of the magnetic core is enhanced.

Description

technical field [0001] Specifically, the present invention relates to a manganese zinc ferrite core. Background technique [0002] When the manganese zinc ferrite core is applied, the bottom of the product will be exposed on the outside, or a layer of tape will be wrapped on the outside; if there is no chamfer at the bottom of the core, the tape or enameled wire will often be cut. In the case of high installation density, There may even be a problem that the tip discharges and damages the circuit, so it is necessary to design a chamfer at the bottom of the magnetic core. When the size of the chamfer is large, the large chamfer will cause the density of the magnetic core to be uneven and cause the deformation of the magnetic core, resulting in poor strength of the magnetic core. Contents of the invention [0003] The purpose of the present invention is to solve the above problems and propose a manganese zinc ferrite core to achieve the advantages of avoiding the deformatio...

AI Technical Summary

Problems solved by technology

[0002] When the manganese zinc ferrite core is applied, the bottom of the product will be exposed on the outside, or a layer of tape will be wrapped on the outside; if there is no chamfer at the bottom of the core, the tape or enameled wire will often be cut. In the case of high installation density, There may even be a problem that the tip discharges and damages the circuit, so it is necessary to design a chamfer at the bottom of the magnetic core

When the size of the chamfer is large, the large chamfer will cause the density of the magnetic core to be uneven and cause the deformation of the magnetic core, resulting in poor core strength.

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