CN2469532Y

CN2469532Y - High-power high-frequency transformer with combined magnetic core

Info

Publication number: CN2469532Y
Application number: CN 00257980
Authority: CN
Inventors: 刘晓云
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-10-23
Filing date: 2000-10-23
Publication date: 2002-01-02
Anticipated expiration: 2010-10-23

Abstract

The utility model belongs to the field of power electric components, and is characterized in that the magnetic core of a transformer consists of a plurality of universal U-type magnetic core standard elements, which, substituting special E-type magnetic cores, are overlapped along the thickness direction and then sleeved at a demanded winding. The utility model provides a combined magnetic-core type high-power high-frequency transformer with low production cost, excellent property and convenient usage, thereby promoting the popularization and the application of switch type power electric devices.

Description

The combined magnet core high-power high-frequency transformer

This reality month new application in switching mode electron electric power equipment as inversion welding machine, inverter etc.Have advantages such as volume is little, in light weight, efficient, energy-conservation.Belong to the electron electric power devices field.

The used transformer of producing both at home and abroad of switching mode electron electric power equipment all uses special-purpose E type magnetic core usually at present.It not only costs an arm and a leg, and eddy current loss is big when using in high-power, has increased power consumption and caloric value.Make the switching mode electron electric power equipment of superior performance be difficult to popularization and application.

The purpose of this utility model provides the combined magnet core formula high-power high-frequency transformer that a kind of cost is low, performance good, application is convenient, flexible, thereby promotes the popularization and application of switching mode electron electric power equipment.

The purpose of this utility model is achieved in that by a plurality of general U type magnetic core standard components along the overlapping combination of thickness direction, replace special-purpose E type magnetic core, is sleeved on to constitute on the required winding again.The specification of U type magnetic core and quantity are determined cutting long-pending requirement according to required transformer.

Detailed description of main elements: U type magnetic core (1), winding I (2), winding II (3).

Below in conjunction with drawings and Examples the utility model is explained:

With reference to accompanying drawing, according to the sectional area that design of transformer requires, the U type magnetic core standard component (1) of selecting corresponding specification and quantity promptly constitutes the high frequency transformer magnetic core along the overlapping combination of thickness direction.Again combined magnet core is sleeved on required winding I (2), the winding II (3), promptly constitutes the combined magnet core high-power high-frequency transformer.

The utility model has following advantage:

1, price is low: according to the sectional area that design of transformer requires, with the combination of the U-shaped magnetic core of standard component, get For special-purpose E type magnetic core, greatly reduce cost. For example total sectional area is 15CM²Magnetic core, U-shaped combination The price of magnetic core is than low 6～10 times of the price of the long-pending E type of uiform section magnetic core, thus decrease transformer Cost.

2, performance is good: the main index of the items such as U-shaped magnetic core permeability and magnetic potential reset speed all is not less than respective cross-section Long-pending .E type magnetic core. And the magnetic core of transformer eddy current that the U-shaped magnetic core of polylith consists of is little, has reduced the magnetic core caloric value, The overall quality of transformer is obviously improved, and its conversion efficient is up to about 97%, and this is to improving the worker of equipment It is highly beneficial to make efficient. 120 amperes of small electrical welding machine tests are shown that operating efficiency is 92%～93%, this That special-purpose E type magnetic core is unapproachable.

3. use convenient, flexible: the design of transformer is determined the magnetic core sectional area according to multiple parameters such as power, frequency, magnetic core qualities.Combined magnet core can select the U type magnetic core of right quantity to carry out respective combination according to the required magnetic core sectional area of transformer, just can produce satisfactory transformer.And special-purpose E type magnetic core has only several grades of fixedly specifications, if the size of the required magnetic core of transformer between two grades, must be selected the magnetic core greater than desirable value, not only cost increases but also volume increases.

Because these advantages of combined magnet core transformer reduce cost greatly, make it have little, in light weight, the energy-efficient switching mode electron electric power equipment of volume and are able to popularization and application.The inventor has been successfully used to 12 volt 100 and has pacified in electrolysis power and 120 peaces and the 160 peace inversion welding machines.

Claims

1. the feature of combined magnet core high-power high-frequency transformer is: be to be made up along thickness direction by a plurality of general U type magnetic core standard components, replace special-purpose E type magnetic core, and it is sleeved on constitutes on the required winding.