CN205282266U

CN205282266U - High frequency invertion power supply

Info

Publication number: CN205282266U
Application number: CN201521104532.6U
Authority: CN
Inventors: 刘少德; 周文全
Original assignee: Sichuan Injet Electric Co Ltd
Current assignee: Sichuan Injet Electric Co Ltd
Priority date: 2015-12-25
Filing date: 2015-12-25
Publication date: 2016-06-01
Anticipated expiration: 2025-12-25

Abstract

The utility model belongs to the power field, the utility model discloses a high frequency invertion power supply, including high -frequency transformer, high -frequency transformer includes magnetic core, primary coil, secondary coil, radiator, copper sheet, the primary coil coiling is in on the magnetic core, be equipped with on the radiator and be used for holding the through -hole of magnetic core, the magnetic core set up in in the through -hole of radiator, secondary coil passes primary coil and sets up in the through -hole of radiator, primary coil's quantity can be for one or more than one. The utility model discloses high conversion efficiency is carried to the demand of different electric pressures to the realization to there is fine radiating effect.

Description

A kind of high frequency inverter

Technical field

This utility model relates to a kind of high frequency electric source, particularly a kind of high frequency inverter.

Background technology

Along with the fast development of industry, plating, electrolysis in industrial processes, the field such as crystal growth, melting all needs to use different grades of high-current dc power supply that body of heater etc. is heated. For guaranteeing that power failure reduces impact on industrial processes, majority all adopts output after multiple power sources in parallel, even if wherein also can proceed the technology produced after single power failure. Carried out voltage conversion by high frequency transformer after general power supply is both needed to rectification, IGBT inversion, export DC source then through diode rectification. But, high frequency inverter of the prior art is typically only capable to meet single electric pressure, and the scope of application is less.

It is thus desirable to a kind of high frequency inverter that can meet different electric pressure.

Utility model content

In order to solve the problems referred to above, this utility model provides the high frequency inverter that a kind of can realize different electric pressures, and the technical scheme of high frequency inverter of the present utility model is:

A kind of high frequency inverter, including high frequency transformer, described high frequency transformer includes magnetic core, primary winding, secondary coil, radiator, copper sheet; Described primary winding is wound on described magnetic core, described radiator is provided with the through hole for holding described magnetic core, described magnetic core is arranged in the through hole of described radiator, the quantity of described primary winding can be one or more than one, can be modified according to power supply requirement, and then meet the demand of different voltage, current class power supply. Described secondary coil is arranged in the through hole of radiator through primary winding, and the secondary coil of described high frequency transformer includes first coil the second coil; Described first coil, the second coil are the copper pipes that two diameters are different, described first coil and described second coil groups synthesize two circles traverse primary windings, its one end is connected with radiator by copper sheet, export as an electrode, the other end is directly connected with commutation diode by copper sheet, and diode is directly mounted on radiator and exports as another electrode. Heat-conducting glue is adopted to be fixed after installation; Surrounding is connected to radiator row, and described radiator row can be different according to power, can adopt self cooling, and water flowing cooling.

Preferably, described secondary coil (5) and radiator (2) entirety run through primary winding (3) and realize transformer secondary cascade.

Preferably, the described secondary coil number of turn can be more than two circles or two circles.

Preferably, the radiator of described high frequency transformer is column, and centre is through hole, and described radiator can be polygon.

The beneficial effects of the utility model are: the demand of different voltage, current class power supply is met by the primary winding of varying number can be selected to realize; Adopt the secondary coil directly adopting the mode of copper piece combination to replace original enamel-covered wire coiling, it is possible to decrease loss simultaneously, improve conversion efficiency; Primary winding and secondary coil are placed in special radiator, are connected to fixing by conduction material and radiator, coil heat quickly can be transferred to radiator, then be taken away by water, have good thermal diffusivity.

Accompanying drawing explanation

Fig. 1 is implementing circuit figure of the present utility model;

Fig. 2 is the scheme of installation of this utility model high frequency transformer;

Fig. 3 is the enforcement schematic diagram of this utility model high frequency transformer;

In accompanying drawing, 1,4 copper sheets, 2 radiators, 3 primary windings, 5 secondary coils, 6,8 radiator rows, 7 high frequency transformers.

Detailed description of the invention

Below in conjunction with accompanying drawing, this utility model is described in detail.

In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, this utility model is further elaborated. Should be appreciated that specific embodiment described herein is only in order to explain this utility model, be not used to limit this utility model.

Implementing circuit figure of the present utility model as shown in Figure 1, wherein, in DC power system, input current exports unidirectional current after input rectifying, inversion, transformation, output rectification, wherein rectifying part is for carrying out rectification by input current, output unidirectional current, after Converting Unit adopts IGBT power device that the unidirectional current that input rectifying part exports is carried out inversion, transformer portion adopts high frequency transformer that the electric current after inversion is carried out voltage conversion, again through output rectifying part, electric current is carried out rectification, the unidirectional current that final output is controlled.

The structure chart of this utility model high frequency transformer as shown in Figure 2, a kind of high frequency inverter, including high frequency transformer, described high frequency transformer includes magnetic core, primary winding 3, secondary coil 5, radiator 2, copper sheet 1,4; Described primary winding is wound on described magnetic core, described radiator 2 is provided with the through hole for holding described magnetic core, described magnetic core is arranged in the through hole of described radiator 2, the quantity of described primary winding 3 can be one or more than one, and described secondary coil 5 is arranged in the through hole of radiator 2 through primary winding 3.

Concrete, the secondary coil 5 of described high frequency transformer includes first coil the second coil; Described first coil, the second coil are the copper pipes that two diameters are different, described first coil and described second coil groups synthesize two circles traverse primary windings 3, its one end is connected with radiator by copper sheet 1, export as an electrode, the other end is directly connected with commutation diode by copper sheet 4, and diode is directly mounted on radiator 2 and exports as another electrode. Both can simplify wiring and be easy to produce, and connection cable loss can have been reduced again, save cost.

Concrete, primary winding 3 is in parallel, and secondary coil 5 adopts the form of series connection, selects the primary winding 3 of varying number and then can realize the demand to different electric pressures.

Concrete, magnetic core, primary winding, secondary coil are fixed in radiator 2 by heat-conducting glue, and during utility model works, the heat that the primary winding 3 on magnetic core produces is transferred to radiator 2 by heat-conducting glue, dispelled the heat by radiator 2, improve radiating effect of the present utility model.

The enforcement schematic diagram of this utility model high frequency transformer as shown in Figure 3, radiator row 6,8, high frequency transformer 7, high frequency transformer 7 is pressed from both sides with wherein by radiator row, and radiator row 6,8 can be different according to power, can adopt self cooling, and water flowing cooling, there is good heat sinking function.

The foregoing is only preferred embodiment of the present utility model; not in order to limit this utility model; all any amendment, equivalent replacement and improvement etc. made within spirit of the present utility model and principle, should be included within protection domain of the present utility model.

Claims

1. a high frequency inverter, it is characterised in that include high frequency transformer, described high frequency transformer includes magnetic core, primary winding (3); Described primary winding (3) is wound on described magnetic core, and the quantity of described primary winding (3) can be one or more than one.

2. high frequency inverter as claimed in claim 1, it is characterized in that, described high frequency transformer includes secondary coil (5), described secondary coil (5) includes first coil and the second coil, described first coil, the second coil are the copper pipes that two diameter are different, and described first coil and described second coil groups synthesize two circles traverse primary winding (3).

3. high frequency inverter as claimed in claim 2, it is characterised in that the number of turn of described secondary coil (5) can be more than two circles or two circles.

4. high frequency inverter as claimed in claim 2, it is characterised in that described high frequency transformer includes radiator (2), and radiator (2) is column, and centre is through hole.

5. high frequency inverter as claimed in claim 4, it is characterised in that described radiator (2) profile is polygon.

6. high frequency inverter as claimed in claim 4, it is characterised in that the magnetic core of described high frequency transformer, primary winding (3), secondary coil (5) are fixed in radiator (2), fill its inner space by heat-conducting glue.

7. high frequency inverter as claimed in claim 4, it is characterised in that secondary coil (5) and radiator (2) entirety run through primary winding (3) and realizes transformer secondary cascade.

8. the high frequency inverter as described in claim 1 or 2 or 4 or 6, it is characterised in that described high frequency transformer and two pieces of radiators row (6,8) connect.