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Production mold of e-shaped magnetic core blank

A magnetic core and blank technology is applied in the field of production molds for E-type magnetic core blanks, which can solve the problems of easy deformation of blanks and low qualification rate, and achieve the effects of avoiding quality problems, improving qualification rate and facilitating realization.

Active Publication Date: 2018-10-30
TONGXIANG YAORUN ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is a production mold for E-shaped magnetic core blanks, which is used to solve the problems of easy deformation and low qualified rate of blanks after sintering

Method used

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  • Production mold of e-shaped magnetic core blank
  • Production mold of e-shaped magnetic core blank
  • Production mold of e-shaped magnetic core blank

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Experimental program
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Embodiment Construction

[0022] The present invention will be described in further detail below by means of specific embodiments:

[0023] Such as figure 1 , figure 2 As shown, the production mold of the E-shaped magnetic core blank proposed by the present invention includes a bottom block 10 , a first side cylinder 11 , a second side cylinder 12 and a winding cylinder 13 . The first side cylinder 11 , the second side cylinder 12 and the winding cylinder 13 are vertically arranged on the bottom block 10 parallel to each other and fixedly connected to the bottom block 10 . The first side cylinder 11 , the second side cylinder 12 , the bottom block 10 and the winding cylinder 13 are all provided with cavities inside, and the cavities of the four are connected together.

[0024] The bottom block 10 , the first side cylinder 11 , the second side cylinder 12 and the winding cylinder 13 are all rectangular parallelepipeds with the same width. The first side cylinder 11 and the second side cylinder 12 ar...

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Abstract

The invention discloses a production die of an E-type magnetic core blank. The production die comprises a bottom block, a first side column body, a second side column body and a winding column body, wherein the first side column body, the second side column body and the winding column body are fixedly arranged on the bottom block. The winding column body is arranged between the first side column body and the second side column body. The first side column body and the second side column body are equal in height. The production die further comprises insulating thermal-protective coatings with which the outer surfaces of the first side column body, the second side column body and the winding column body are coated. After the outer surfaces are coated with the insulating thermal-protective coatings, the winding column body is 0.02-0.10 mm higher than the first side column body and the second side column body. The insulating thermal-protective coatings are prepared from, by mass, 65-70 parts of paper pulp, 10 parts of epoxy resin, 5-25 parts of glass fibers and 15 parts of flame retardant. The problem that in the prior art, a blank is prone to deformation after being sintered is solved, and the production die of the E-type magnetic core blank increases the product percent of pass.

Description

technical field [0001] The invention relates to the field of manufacturing high-frequency transformer accessories, and more specifically relates to a production mold of an E-shaped magnetic core blank. Background technique [0002] Ferrite core is a high magnetic permeability material, mainly used as high frequency transformer, high frequency magnetic ring, inductor, etc., to increase the magnetic permeability and improve the quality factor of the inductance. Coils wound on ferrite cores can be made into inductors or transformers, which are widely used in instrumentation, communication equipment and household appliances. Ferrite cores are generally produced by mold casting, sintering and final grinding. [0003] Most of the production molds of the E-type magnetic core blanks are molded by using a rotary press, and the existing molds (such as figure 1 As shown) the first side cylinder 11, the second side cylinder 12 and the winding cylinder 13 are all designed to be of the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F3/03
CPCB22F3/03
Inventor 冯涛
Owner TONGXIANG YAORUN ELECTRONICS
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