CN206250028U - A kind of integrated high frequency transformer of single-phase high-power magnetic - Google Patents
A kind of integrated high frequency transformer of single-phase high-power magnetic Download PDFInfo
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- CN206250028U CN206250028U CN201621259786.XU CN201621259786U CN206250028U CN 206250028 U CN206250028 U CN 206250028U CN 201621259786 U CN201621259786 U CN 201621259786U CN 206250028 U CN206250028 U CN 206250028U
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- high frequency
- frequency transformer
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Abstract
A kind of integrated high frequency transformer of single-phase high-power magnetic disclosed in the utility model, including iron core, two primary coils and two secondary coils, its first primary coil is wound on iron core periphery, first secondary coil is wound on the first primary coil periphery, second primary coil is wound on first level coil periphery, and second subprime coil is wound on the second primary coil periphery；The first output line, the second output line are respectively arranged with the first secondary coil and second subprime coil, some small toroidal cores are cased with respectively on the first output line, the second output line, as reactor.The utility model has following advantages compared with current high frequency transformer prior art (separating coiling, single cord, common winding)：A, loss reduce by more than 30%；B, reliability improve more than 10%；C, volume-diminished more than 20%.
Description
Technical field
The utility model is related to high frequency transformer technical field, more particularly to a kind of integrated high frequency transformation of single-phase high-power magnetic
Device.
Background technology
Typically there are two magnetic elements in conventional high-power high-frequency power electronic equipment (inverter circuit), one is to hold
The transformer of voltage conversion function is carried on a shoulder pole, a reactor for undertaking filter function, electrical principle is as shown in Figure 1.G is straight in Fig. 1
Stream busbar voltage, power switch pipe Q1-Q4 compositions full-bridge inverter (also can be half-bridge or other inversion topologicals), high frequency transformer
The primary side of T is directly connected composition inversion circuit with inverter bridge, and the same filter circuit of secondary side (L C) and load constitute loop, because
It is the magnetic-coupled principle of transformer, has reached power transmission and electrical isolation between inverter circuit and load.Can be according to transformation
Device primary side, the turn ratio of secondary side are met the electrical parameter that load needs, i.e., with the function of electrical parameter conversion.
Due to being two discrete components, it is necessary to do corresponding drawing and specifications respectively.Needed to this in final assembly
Installation and connection and explanation that two elements do to distinguish, debugging are also required to be that parameter is done and monitored respectively to two elements.Thus
The complexity of whole machine is increased, final assembly efficiency and reliability is reduced.
Utility model content
Technical problem to be solved in the utility model is for undertaking in existing high-power high-frequency power electronic equipment
Above-mentioned technical problem existing for the transformer of voltage conversion function and provide one kind by using transformer leakage inductance and in transformation
Device output end increases toroidal core to replace the integrated high frequency transformer of single-phase high-power magnetic of output reactance device, so as to ensure circuit
Outputting inductance amount, reduce wiring, reduce loss, reduce installing space to improve the reliability of power density and system.
Technical problem to be solved in the utility model can be achieved through the following technical solutions：
A kind of integrated high frequency transformer of single-phase high-power magnetic, including iron core, two primary coils and two secondary coils, two
Individual primary coil is divided into the first primary coil and the second primary coil, and two secondary coils are divided into the first secondary coil and second
Level coil, it is characterised in that first primary coil is wound on iron core periphery, first secondary coil is wound on described the
One primary coil periphery, second primary coil is wound on first level coil periphery, and the second subprime coil is wound on
Second primary coil periphery, between the iron core and first primary coil, first secondary coil with it is described
Between first primary coil, between second primary coil and first secondary coil, the second subprime coil and institute
State and be provided with insulating paper between the second primary coil, the insulating paper is respectively by the iron core, the first primary coil, first time
Level coil, the second primary coil parcel, the integrated high frequency transformer of single-phase high-power magnetic are integrally also adopted by insulating paper parcel；The
The first input line, the second input line are respectively arranged with one primary coil and the second primary coil, in first secondary coil
With the first output line, the second output line are respectively arranged with second subprime coil, on first output line, the second output line
Some small toroidal cores are cased with respectively, as reactor.
In a preferred embodiment of the present utility model, first primary coil, the second primary coil, first level
Coil, second subprime coil using the stranded coiling of multiply enamel-covered wire or using litz wire coiling or use Copper Foil coiling.
In a preferred embodiment of the present utility model, the material of the iron core is amorphous or ferrite.
In a preferred embodiment of the present utility model, the small toroidal core is amorphous or nanocrystalline.
In a preferred embodiment of the present utility model, the insulating paper is Du PontTM OrIt is multiple
Combined paper.
As a result of technical scheme as above, the utility model compared with prior art, with following features：
1) the first primary coil, the second primary coil, the first secondary coil, second subprime coil use multiply enamel-covered wire
Stranded coiling uses litz wire coiling or uses Copper Foil coiling.
1) the first primary coil of the present utility model, the second primary coil, the first secondary coil, second subprime coil are adopted
With the stranded coiling of multiply enamel-covered wire or using litz wire coiling or Copper Foil coiling is used, solved in the prior art because wire exists
Kelvin effect (electric current flows along conductive surface) can be produced under high frequency, is lost and can be increased if with common single or several enamel-covered wires
3-10 times, temperature rise can exceed the problem of standard value after band is fully loaded.
2) the first primary coil of the present utility model, the second primary coil, the first secondary coil, second subprime coil around
Mode processed makes sandwich laminar (interior junior middle school time is outer just) into by common laminar (interior just outer time), can so reduce leakage inductance to reduce
Transformer loss more than 30%.
3) reactor winding, the leakage inductance inherently existed using transformer, along with transformer output end set are cancelled
Toroidal core to meet requirement of the system to sensibility reciprocal, magnetic core by amorphous or it is nanocrystalline constitute, in high frequency with the low damage of magnetic conduction high
The performance of consumption.
4) by actual test, the utility model and current high frequency transformer prior art (separate coiling, single cord,
Common winding) compared to there is following advantages：A, loss reduce by more than 30%；B, reliability improve more than 10%；C, volume-diminished
More than 20%.
Brief description of the drawings
Fig. 1 is the schematic diagram of existing inverter and transformer.
Fig. 2 is the integrated high frequency transformer electronic schematic diagram of single-phase high-power magnetic of the present utility model.
Fig. 3 is the coil winding schematic diagram of the integrated high frequency transformer of single-phase high-power magnetic of the present utility model.
Fig. 4 is the coil winding schematic diagram of existing high frequency transformer.
The integrated high frequency transformer overall structure diagram of Fig. 5 single-phase high-power magnetic of the present utility model.
Fig. 6 is the side view of Fig. 5.
Specific embodiment
Referring to Fig. 2, what is be given in figure is a kind of high frequency transformer electrical schematic diagram of single-phase high-power special coil structure,
Including iron core 10, primary coil 20 and 40, secondary coil 30 and 50.
Referring to Fig. 4, the primary coil 2 and 4 of existing high frequency transformer, the winding method of secondary coil 3 and 5 are that primary and secondary is
Separate coiling, it is first between average distance be thickness that two-layer coil adds insulating barrier again, specifically：Iron core 1 most inner side, with insulation
Paper 6 wrap up after after primary coil 2, following bag insulating paper 6 around primary coil 4, then again bag insulating paper 6 further around secondary coil
3, continue bag insulating paper 6 further around secondary coil 5, last entirety wraps insulation again.Reactor is individually set up, and it includes core of reactor
7 and reactor winding 8, reactor winding 8 is wound on reactor core 7.
Referring to Fig. 3 and Fig. 5, Fig. 6, the high frequency transformer electrical schematic diagram of single-phase high-power special coil structure, including iron
Core 10, primary coil 20 and 40, secondary coil 30 and 50, iron core 10 most inner side, with insulating paper 60 wrap up after around primary coil
20, around secondary coil 30 after following bag insulating paper 60, then bag insulating paper 60, further around primary coil 4, continues bag insulating paper again
Further around secondary coil 50, last overall bag insulating paper 60 again.Input line 21 and 41 is respectively arranged with primary coil 20 and 40,
Output line 31 and 51 is respectively arranged with secondary coil 30 and 50, some small annular magnetics are cased with respectively on output line 31 and 51
Core 70 and 71, as reactor.
Primary coil 20 and 40, secondary coil 30 and 50 use the stranded coiling of multiply enamel-covered wire or litz wire coiling or Copper Foil
Coiling, the material of iron core 10 is amorphous or ferrite, and small toroidal core 70 and 71 is amorphous or nanocrystalline, and insulating paper 60 is Du PontTM OrExtrusion coating paper.
Average distance of the present utility model adds the thickness of insulating barrier for single layer coil, shortens 50%.Reactor is being improved
It is preceding to be integrated with transformer after improvement independently of transformer, it is enclosed within transformer output line using multiple small magnetic cores.
Claims (5)
1. a kind of integrated high frequency transformer of single-phase high-power magnetic, including iron core, two primary coils and two secondary coils, two
Primary coil is divided into the first primary coil and the second primary coil, and two secondary coils are divided into the first secondary coil and second subprime
Coil, it is characterised in that first primary coil is wound on the iron core periphery, first secondary coil is wound on described first
Primary coil periphery, second primary coil is wound on first level coil periphery, and the second subprime coil is wound on institute
The second primary coil periphery is stated, between the iron core and first primary coil, first secondary coil and described the
Between one primary coil, between second primary coil and first secondary coil, the second subprime coil with it is described
Insulating paper is provided between second primary coil, the insulating paper is respectively by the iron core, the first primary coil, first level
Coil, the second primary coil parcel, the integrated high frequency transformer of single-phase high-power magnetic are integrally also adopted by insulating paper parcel；First
The first input line, the second input line are respectively arranged with primary coil and the second primary coil, in first secondary coil and
The first output line, the second output line are respectively arranged with second subprime coil, are divided on first output line, the second output line
Some small toroidal cores are not cased with, as reactor.
2. a kind of integrated high frequency transformer of single-phase high-power magnetic as claimed in claim 1, it is characterised in that described first is primary
Coil, the second primary coil, the first secondary coil, second subprime coil using the stranded coiling of multiply enamel-covered wire or use Ritz
Line coiling uses Copper Foil coiling.
3. a kind of integrated high frequency transformer of single-phase high-power magnetic as claimed in claim 1, it is characterised in that the material of the iron core
Matter is amorphous or ferrite.
4. a kind of integrated high frequency transformer of single-phase high-power magnetic as claimed in claim 1, it is characterised in that the small annular magnetic
Core is amorphous or nanocrystalline.
5. a kind of integrated high frequency transformer of single-phase high-power magnetic as claimed in claim 1, it is characterised in that the insulating paper is
Du PontTM OrExtrusion coating paper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621259786.XU CN206250028U (en) | 2016-11-23 | 2016-11-23 | A kind of integrated high frequency transformer of single-phase high-power magnetic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621259786.XU CN206250028U (en) | 2016-11-23 | 2016-11-23 | A kind of integrated high frequency transformer of single-phase high-power magnetic |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206250028U true CN206250028U (en) | 2017-06-13 |
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ID=59003272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621259786.XU Active CN206250028U (en) | 2016-11-23 | 2016-11-23 | A kind of integrated high frequency transformer of single-phase high-power magnetic |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206250028U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113382121A (en) * | 2020-03-09 | 2021-09-10 | 华为技术有限公司 | Single-board circuit, transformer and DSL client device |
-
2016
- 2016-11-23 CN CN201621259786.XU patent/CN206250028U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113382121A (en) * | 2020-03-09 | 2021-09-10 | 华为技术有限公司 | Single-board circuit, transformer and DSL client device |
| CN113382121B (en) * | 2020-03-09 | 2023-07-07 | 华为技术有限公司 | Single board circuit, transformer and DSL client device |
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