An ee type high frequency transformer

Abstract

The invention discloses a EB-type high-frequency transformer with high pressure resistance and filtering performance. The EB-type high-frequency transformer includes a skeleton, two magnetic cores anda shielding hood; the skeleton is clamped between the magnetic cores and the shielding hood, a buffer cavity is formed between the skeleton and the shielding hood, second insulation belts are twinedon the outer walls of the magnetic cores, the magnetic cores and the second insulation belts are located inside the skeleton, through holes are formed in the centers of two magnetic core center columns, insulation mats are in clamped connection with the interiors of the through holes and are composed of first half mat bodies and second half mat bodies, and the first half mat bodies and the secondhalf mat bodies are composed of embedded rubber, connection rubber and insulation rubber. According to the EB-type high-frequency transformer with high pressure resistance and filtering performance, the magnetic cores, the through holes and the insulation mats are arranged; when the magnetic cores of the transformer are machined, the lengths of the magnetic core center columns can be appropriatelyreduced, therefore, the safety distance formed between the magnetic cores is increased, and the purpose of improving the pressure resistance effect of the EB-type high-frequency transformer is achieved.

Description

technical field [0001] The invention belongs to the technical field of high-frequency transformers, and in particular relates to an EE type high-frequency transformer. Background technique [0002] The high-frequency transformer is a power transformer whose operating frequency exceeds the intermediate frequency. It is the most important component of a switching power supply. Its working principle is to use the electromagnetic induction between adjacent windings to realize the voltage transformation effect of the power output. The existing EE in the market The internal structure of the type transformer is as follows Figure 1-Figure 2 As shown, it is composed of a skeleton 2 and a magnetic core 4, and a first insulating tape 1 and a second insulating tape 3 are respectively wound around the outer edge of the skeleton 2 and the positions between the skeleton 2 and the magnetic core 4. There are two E-shaped magnetic cores 4 inside, the primary coil and the secondary coil are r...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide an EE-type high-frequency transformer to solve the problems of low voltage resistance between different levels of coils inside the existing high-frequency transformer and poor filtering performance of the transformer itself

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