Method for integrally, nakedly and radially casting disk type radiation type magnetic conduction iron core

A casting method and radiation-type technology, which is applied in the manufacture of inductors/transformers/magnets, electrical components, circuits, etc., can solve problems such as product performance degradation, stem burnt products, and damage to the physical and mental health of operating personnel, so as to reduce temperature rise and Effects of no-load loss, slowing down insulation aging speed, and protecting physical and mental health

CN102157260BActive Publication Date: 2013-01-02ZHEJIANG KESHENG ELECTRIC POWER EQUIP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2013-01-02

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Abstract

The invention relates to a method for integrally, nakedly and radially casting a disk type radiation type magnetic conduction iron core, comprising the step of respectively producing an air gap plate, an upper iron yoke, a lower iron yoke and an iron core disk blank as well as the step of molding through casting. Producing the air gap plate, in which a plurality of vertical through holes are formed, a blank for the upper iron yoke, a blank for the lower iron yoke and a blank for the iron core disk for standby; carrying out casting, i.e. horizontally arranging the blank for the lower iron yoke, utilizing three dummy clubs on the blank for the lower iron yoke, annularly wrapping a plastic belt, injecting liquefied resin and arranging the insulating air gap plate and the blank for the iron core disk, piling three rows of core columns to a certain height, respectively sheathing the core columns into coil windings, pressing the blank for the upper iron yoke, tightly pulling a pull rod, and tightly pressing the insulating air gap plate and the blank for the iron core disk between the blank for the upper iron yoke and the blank for the lower iron yoke with the assistance of the liquefied resin under the action of force of the pull rod so as to realize molding through integral solidification, thereby accomplishing the integral casting of the iron core. The iron core produced by the method has the advantages of low no-load loss, good effect of heat dissipation, low noise as well as no magnetic vibration source and no limit on effectiveness.
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Description

Technical field

[0001] The invention belongs to a casting method of a pie-type radiation-type magnetic conducting core.

Background technique

[0002] figure 1 It is an exploded view of the structure of the traditional pie-type radiation-type magnetic core. It is formed by curing separately, and then combined into a whole upper iron yoke 7 and lower iron yoke 1 through the tie rod 9 and fasteners, and the upper iron yoke 7 and the lower iron yoke. Three rows of core posts between the iron yokes 1 are formed, and the three rows of core posts are used to receive three coil windings. Each row of stems is formed by stacking air gap plates 4 and iron core cakes 5 in sequence. combine figure 2 , when making the core column, first follow the stacking sequence of the air gap plate 4 and the core cake 5, and stack a plurality of air gap plates and core cakes on the lower formwork 11 at intervals from bottom to top until they are stacked on the top After the last air-gap plate...

Examples

Embodiment Construction

[0023] The integral bare casting method of the pie-type radiation-type magnetic conducting core includes the steps of separately manufacturing an air gap plate, an upper iron yoke blank, a lower iron yoke blank, an iron core cake and casting. In the manufacturing process of the present invention, a guiding principle is always implemented: the liquid resin can flow through all the iron core parts, so that the integral casting can be solidified and formed at one time, so that the cured resin can be distributed among the silicon steel sheets like a steel mesh, forming a very Solid solid core.

[0024] Many vertical through-hole processes are added in the manufacture of the air-gap plate, the purpose of which is to allow the liquid resin to pass through the air-gap plate and establish a circulation channel for the liquid resin. The diameter of the through hole is generally 10-15mm.

[0025] The production of the upper iron yoke blank and the lower iron yoke blank is divided into ...