E-shaped bias magnetic core and circuit board using magnetic core

A technology of circuit boards and magnetic cores, which is applied in the direction of printed circuits connected with non-printed electrical components, transformer/inductor cores, etc., and can solve problems such as difficult winding and winding

Inactive Publication Date: 2014-08-13
ANHUI HUALIN MAGNETIC TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing commonly used ferrite core is E type, the shape is simple and economical,

Method used

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  • E-shaped bias magnetic core and circuit board using magnetic core
  • E-shaped bias magnetic core and circuit board using magnetic core
  • E-shaped bias magnetic core and circuit board using magnetic core

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Embodiment Construction

[0014] The technical scheme of the present invention will be further described below in conjunction with the accompanying drawings and through specific embodiments:

[0015] Such as Figure 1-3 as shown, figure 1 It is a structural schematic diagram of an E-type magnetic core proposed by the present invention, figure 2 A side view of an E-type bias core proposed by the present invention, image 3 for which there is figure 1 and 2 Front view of the circuit board with the E-type bias core shown.

[0016] refer to figure 1 and 2 , a kind of E-type bias magnetic core that the present invention proposes, and its section is E-shaped, is made up of winding post 1, two side plates 2 and bottom plate 3, and the bottom shape of winding post 1 is rectangular, and winding post 1 Located in the middle of the bottom plate 3, the length and width direction of the winding post 1 is consistent with the length and width direction of the bottom plate 3 and one side of the length directio...

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PUM

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Abstract

The invention discloses an E-shaped bias magnetic core. The section of the E-shaped bias magnetic core is E-shaped, a winding post is arranged at the middle part of a bottom plate, the length and width directions of the winding post are consistent with the length and width directions of the bottom plate, one side surface of the length direction of the winding post and one side surface of the length direction of the bottom plate are on the same plane, a trapezoidal opening which extends from the middle part to one side far away from the winding post is formed in the bottom plate, the lower base of the trapezoidal opening is far away from the winding post relative to the upper base of the trapezoidal opening, the length of the upper base of the trapezoidal opening is smaller than the length of the winding post, the length of the lower base of the trapezoidal opening is greater than the length of the winding post, the distance from the winding post to the upper base of the trapezoidal opening is smaller than the width of the winding post, the side edges of the winding post are chamfered and the edges of the upper surface of the bottom plate are chamfered. The E-shaped bias magnetic core disclosed by the invention has the advantages that the dimension design is reasonable, the effective working area of the magnetic core is large, the stability and the reliability of the electromagnetic property of the magnetic core are high and the coil is easy to wind. The invention additionally discloses a circuit board, which uses the E-shaped bias magnetic core.

Description

technical field [0001] The invention relates to the technical field of magnetic cores, in particular to an E-type bias magnetic core and a circuit board using the magnetic core. Background technique [0002] The magnetic core is a sintered magnetic metal oxide composed of various iron oxide mixtures. In the prior art, ferrite magnetic cores are used in coils and transformers of various electronic devices. For example, manganese-zinc ferrite and nickel-zinc ferrite are typical magnetic core materials. Among them, manganese-zinc ferrite has the characteristics of high magnetic permeability and high magnetic flux density, and has a relatively high magnetic flux density when the frequency is lower than 1MHz. Low loss characteristics, nickel-zinc ferrite has extremely high resistivity, low magnetic permeability of less than a few hundred, and low loss at frequencies higher than 1MHz. [0003] The material and structure of the magnetic core are important factors affecting the per...

Claims

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Application Information

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IPC IPC(8): H01F27/24H05K1/18
Inventor 沈宏江
Owner ANHUI HUALIN MAGNETIC TECH
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