CN105845319A - High-frequency transformer - Google Patents
High-frequency transformer Download PDFInfo
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- CN105845319A CN105845319A CN201510014910.XA CN201510014910A CN105845319A CN 105845319 A CN105845319 A CN 105845319A CN 201510014910 A CN201510014910 A CN 201510014910A CN 105845319 A CN105845319 A CN 105845319A
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- Prior art keywords
- frequency transformer
- conductive plate
- pressure winding
- high pressure
- high frequency
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Abstract
The invention provides a high-frequency transformer. The high-frequency transformer comprises an electric conductor, a plurality of high-voltage winding coils arranged on the electric conductor in a sleeve mode, an electric conduction barrel arranged outside the high-voltage winding coils in a surrounding mode, a first electric conduction plate and a second electric conduction plate, wherein the first electric conduction plate and the second electric conduction plate are located at the two ends of the electric conduction barrel respectively; the two ends of the electric conductor penetrate out of the first electric conduction plate and the second electric conduction plate respectively, a first insulation layer is arranged between the outer surface of the electric conductor and the high-voltage winding coils, a second insulation layer is arranged between the high-voltage winding coils and the electric conduction barrel, and first bakelite plates are clamped between every two adjacent high-voltage winding coils and between the corresponding high-voltage winding coil and the first electric conduction plate; a second bakelite plate is clamped between the second electric conduction plate and the corresponding high-voltage winding coil adjacent to the second electric conduction plate, one end of the electric conduction barrel is abutted against the first electric conduction plate, the other end of the electric conduction barrel is separated from the second electric conduction plate through the second bakelite plate, and the high-voltage winding coils are connected in parallel. The high-frequency transformer is simple in structure, leakage flux is effectively reduced through the design of the electric conduction barrel, and the electric conduction barrel can also serve as a protection outer shell.
Description
Technical field
The present invention relates to a kind of high frequency transformer.
Background technology
High frequency transformer is the critical component of all kinds of high frequency switch power, and its performance directly influences Switching Power Supply
Performance.
The high frequency transformer that the manufacturer of Switching Power Supply uses at present is the most all first coiling on toroidal core
High pressure winding, then coiling low pressure winding outside high pressure winding.Owing to high frequency switch power is usually used for low
The occasion of voltage high-current, thus low pressure winding generally use heavy gauge wire around to 1 circle or 2 circles, but so lack circle
The low pressure winding of number is difficult to and high pressure winding fully couples, and causes transformer leakage inductance the biggest.To this end, industry is produced
The transformator of raw a kind of entitled beetle, although this transformator can solve the problem that leakage inductance is big, but this change
Depressor makes complexity, causes production efficiency low, and production cost is higher.Therefore, await createing one
Money leakage inductance is little and the high frequency transformer of low cost of manufacture.
Summary of the invention
The present invention proposes a kind of high frequency transformer, solves that leakage inductance in prior art is big and manufacturing process is complicated etc.
Problem.
The technical scheme is that and be achieved in that:
A kind of high frequency transformer, the some high pressure winding coils including an electric conductor, being sheathed on this electric conductor,
Enclose the conductive tube being located at outside each high pressure winding coil and lay respectively at first conductive plate and at these conductive tube two ends
Two conductive plates, the two ends of this electric conductor are passed by the first conductive plate and the second conductive plate respectively, this electric conductor
The first insulating barrier, described each high pressure winding coil and conductive tube it is provided with between outer surface and each high pressure winding coil
Between be provided with the second insulating barrier, be folded with one first bakelite plate respectively between two the most adjacent high pressure winding coils,
Also this first bakelite plate it is folded with between the high pressure winding coil that described first conductive plate is adjacent, described
One second bakelite plate, described conduction it is folded with between high pressure winding and conductive tube that second conductive plate is adjacent
One end of cylinder leans with the first conductive plate, and the other end is separated by the second bakelite plate and the second conductive plate, described
Each high pressure winding coil is connected in parallel with each other.
Preferred version is, described conductive tube is the cylindrical shape being bent into by a square conductive plate.
Preferred version is, the relative both sides end of described square conductive plate is correspondingly provided with some openings respectively, should
After square conductive plate is bent into cylindrical shape, its limit end being provided with opening leans, and is formed in this limit end position
Some holes passed for the lead-in wire of high pressure winding coil.
Preferred version is, described square conductive plate is square copper coin or square aluminium sheet.
Preferred version is, each high pressure winding coil includes an annular core and is wrapped on this annular core
Coil.
Preferred version is, described annular core is annular ultracrystallite soft magnetic core or annular ferrite core.
Preferred version is, described first insulating barrier and the second insulating barrier are respectively dielectric film or insulation material layer.
Preferred version is, described electric conductor is copper pipe, copper rod, aluminum pipe or aluminium bar.
Preferred version is, the two ends of described electric conductor part outside conductive plate is fixed by nut.
Preferred version is, the Same Name of Ends of each high pressure winding coil is in parallel connection, and as high frequency transformer
Input, the two ends of described electric conductor part outside conductive plate is the outfan of high frequency transformer.
The invention have the benefit that
High-frequency transformer structure in the present invention is simple, thus cost-effective, and described electric conductor is equivalent to low pressure
Winding coil, its sectional area is very big, so allowing not generated heat by big electric current, can effectively prevent temperature
Too high and damage, owing to one end and first conductive plate of described conductive tube are connected, the other end and second is led
Electroplax is separated by the second bakelite plate, and it as a part for low pressure winding coil, and can closely enclose and be located at height
The periphery of pressure winding coil, had both effectively reduced leakage field, again as protection shell, thus had improve transformation
The protective capacities of device.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to enforcement
In example or description of the prior art, the required accompanying drawing used is briefly described, it should be apparent that, describe below
In accompanying drawing be only some embodiments of the present invention, for those of ordinary skill in the art, do not paying
On the premise of going out creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the generalized section of high frequency transformer of the present invention；
Fig. 2 is the structural representation of the square plate body before the conductive tube in Fig. 1 is bent.
In figure:
100, high frequency transformer；10, electric conductor；20, high pressure winding coil；30, conductive tube；40,
One conductive plate；50, the second conductive plate；60, the first insulating barrier；21, iron core；22, coil；70,
One bakelite plate；80, the second bakelite plate；31, square conductive plate；32, opening；90, the second insulating barrier.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clearly
Chu, be fully described by, it is clear that described embodiment be only a part of embodiment of the present invention rather than
Whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creation
The every other embodiment obtained under property work premise, broadly falls into the scope of protection of the invention.
As it is shown in figure 1, this high frequency transformer 100 includes that a profile is cylindrical electric conductor 10, is sheathed on
Some high pressure winding coils 20 on this electric conductor 10, the conductive tube 30 being sheathed on outside high pressure winding coil 20
And lay respectively at the first conductive plate 40 and the second conductive plate 50 of this conductive tube 30 opposite end.
This electric conductor 10 is copper pipe, copper rod, aluminum pipe, aluminium bar or other body conducted electricity very well or barred body.
Be provided with the first insulating barrier 60 between outer surface and each high pressure winding coil 20 of this electric conductor 10, with high pressure
The inner surface of winding coil 20 insulate mutually.This first insulating barrier 60 can be in the dielectric film of electric conductor outer peripheral face,
Alternatively it is located at and is coated with the insulation material layer being located at electric conductor outer peripheral face.
The present embodiment illustrates as a example by 4 high pressure winding coils 20, when being embodied as, is sheathed on conduction
The number of the high pressure winding coil 20 on body is not limited by the present embodiment, can be according to the requirement of output voltage
Accordingly increase or reduce.Each high pressure winding coil 20 includes an annular core 21 and is wrapped in this annular
Coil 22 on iron core 21.Described annular core 21 can be annular ultracrystallite soft magnetic core or circular ferrite magnetic
The soft magnetic materials iron cores such as core.
It is folded with one first bakelite plate 70 between two the most adjacent high pressure winding coils 20.Each first bakelite plate
70 is annular tabular, and its endoporus just passes for electric conductor 10, outside its external diameter is with high pressure winding coil 20
Enclose identical, so that each high pressure winding coil 20 is separated.The high voltage winding that described first conductive plate 40 is adjacent
Also this first bakelite plate 70 it is folded with between group coil 20.The height that described second conductive plate 50 is adjacent
It is folded with one second bakelite plate 80 between pressure winding 20.This second bakelite plate 80 is annular tabular, in it
Hole just passes for electric conductor, and its external diameter is not less than the external diameter of conductive tube 30.The most described each first bakelite plate 70
Each high pressure winding coil 20 and the first conductive plate 40 are separated, and the end of conductive tube 30 is resisted against first and leads
On electroplax 40；Second conductive plate 40 is separated by the second bakelite plate 80 with conductive tube 30, meanwhile, by second
The high pressure winding coil 20 that conductive plate 50 is adjacent separates.
Please refer to Fig. 2, in the present embodiment, described conductive tube 30 is to be bent into by a square conductive plate 31
Cylindrical shape, the relative both sides end of this square conductive plate 31 is correspondingly provided with some semicircular openings 32 respectively,
After this square conductive plate 31 is bent into cylindrical shape, its limit end being provided with opening 32 leans, and in this limit end
Position forms the hole of some circles, and the lead-in wire for high pressure winding coil is passed by each hole.This is square leads
After electroplax 31 is bent into conductive tube 30, its both sides end being provided with opening 32 is not mutually permanently connected, in order to
The installation of its interior each assembly and dismounting.When being embodied as, the material of described conductive tube 30 is not by the present embodiment
Restriction, it can be square copper coin, it is possible to for square aluminium sheet, or other sheet of metallic material conducted electricity very well
Bending forms.The Same Name of Ends of each high pressure winding coil 20 is in parallel connection, using as high frequency transformer 100
Input.The shape of the opening 32 that the limit end of this square conductive plate 31 is provided with is not limited to the case for this embodiment,
It can be semicircle, it is possible to for circular arc, or other shapes being mutually combined.
It is provided with the second insulating barrier 90, with by each high pressure between described each high pressure winding coil 20 and conductive tube 30
The outer surface of winding coil 20 separates with the inner surface of conductive tube 30.This second insulating barrier 90 is for being located at high pressure
The dielectric film of the overall outer peripheral face of winding coil 20, it is possible to for being coated with the insulant being located at conductive tube 30 inner surface
Layer.
Described first conductive plate 40 and the second conductive plate 50 are respectively rectangle tabular, and its endoporus is for electric conductor
The two ends of 10 pass.Surface outside conductive plate 40,50, the two ends of described electric conductor 10 is respectively equipped with outer spiral shell
Stricture of vagina, it screws togather fixing again by nut after being each passed through the first conductive plate 40 and the second conductive plate 50.Described
The two ends of electric conductor 10 are as the outfan of high frequency transformer 100.Described first conductive plate 40 and second is led
The periphery of electroplax 50 extends to the periphery of high pressure winding coil 20.When being embodied as, the two ends of electric conductor 10
And the fixed form between conductive plate 40,50 is not limited to the case for this embodiment, it is possible to by welding, riveting,
Other modes such as crimping fix.In the present embodiment, described first conductive plate 40 and the second conductive plate 50 points
Not Wei copper coin, when being embodied as, the material of described first conductive plate 40 and the second conductive plate 50 is not by this reality
Executing the restriction of example, it is alternatively aluminium sheet, copper-aluminum composite board or other plate bodys conducted electricity very well.
During use, several high pressure winding coils 20 are connected in parallel, and the electric conductor 10 that it wears constitutes low pressure
Winding coil, owing to it is also cross the center of all high pressure winding coils 20, is i.e. equivalent to several secondary
It is the coils connected in series connection of 1 circle, the most both arbitrarily can adjust by changing the number of high pressure winding coil 20
The grade of whole output voltage, it is also possible to adjust output by the number changing high pressure winding coil 20
Size, simple in construction, thus cost-effective.Simultaneously as described electric conductor 10 is equivalent to low pressure winding wire
Circle, its sectional area is very big, so allowing not generated heat by big electric current, can effectively prevent temperature too high and
Damage.Owing to one end of described conductive tube 30 is connected with the first conductive plate 40, the other end and second is led
Electroplax 50 is separated by the second bakelite plate 80, and it as a part for low pressure winding coil, and closely can enclose
It is located at the periphery of high pressure winding coil 20, had both effectively reduced leakage field, and again as protection shell, thus carried
The high protective capacities of high frequency transformer 100.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all at this
Within bright spirit and principle, any modification, equivalent substitution and improvement etc. made, should be included in this
Within bright protection domain.
Claims (10)
1. a high frequency transformer, it is characterised in that: if including an electric conductor, being sheathed on this electric conductor
Dry high pressure winding coil, enclose the conductive tube being located at outside each high pressure winding coil and lay respectively at this conductive tube two ends
The first conductive plate and the second conductive plate, the two ends of this electric conductor are respectively by the first conductive plate and the second conductive plate
Pass, between outer surface and each high pressure winding coil of this electric conductor, be provided with the first insulating barrier, described each high pressure
It is provided with the second insulating barrier between winding coil and conductive tube, presss from both sides respectively between two the most adjacent high pressure winding coils
It is provided with one first bakelite plate, between the high pressure winding coil that described first conductive plate is adjacent, is also folded with one
This first bakelite plate, is folded with one between high pressure winding and conductive tube that described second conductive plate is adjacent
Two bakelite plates, one end of described conductive tube leans with the first conductive plate, and the other end is by the second bakelite plate and
Two conductive plates separate, and described each high pressure winding coil is connected in parallel with each other.
2. high frequency transformer as claimed in claim 1, it is characterised in that: described conductive tube is square by one
The cylindrical shape that conductive plate is bent into.
3. high frequency transformer as claimed in claim 2, it is characterised in that: described square conductive plate relative
Being correspondingly provided with some openings on the end of both sides respectively, after this square conductive plate is bent into cylindrical shape, it is provided with through hole
Limit end lean, and form, in this limit end position, the hole that some lead-in wires for high pressure winding coil pass.
4. high frequency transformer as claimed in claim 2, it is characterised in that: described square conductive plate is square
Copper coin or square aluminium sheet.
5. high frequency transformer as claimed in claim 1, it is characterised in that: each high pressure winding coil includes
One annular core and be wrapped in the coil on this annular core.
6. high frequency transformer as claimed in claim 5, it is characterised in that: described annular core is that annular is super
Microcrystalline soft magnetic core or annular ferrite core.
7. high frequency transformer as claimed in claim 1, it is characterised in that: described first insulating barrier and second
Insulating barrier is respectively dielectric film or insulation material layer.
8. high frequency transformer as claimed in claim 1, it is characterised in that: described electric conductor is copper pipe, copper
Rod, aluminum pipe or aluminium bar.
9. high frequency transformer as claimed in claim 1, it is characterised in that: the two ends of described electric conductor are in leading
Part outside electroplax is fixed by nut.
10. the high frequency transformer as in any of the one of claim 1 to 9, it is characterised in that: each height
The Same Name of Ends of pressure winding coil is in parallel connection, and as the input of high frequency transformer, described electric conductor
Two ends part outside conductive plate is the outfan of high frequency transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510014910.XA CN105845319B (en) | 2015-01-12 | 2015-01-12 | High frequency transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510014910.XA CN105845319B (en) | 2015-01-12 | 2015-01-12 | High frequency transformer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105845319A true CN105845319A (en) | 2016-08-10 |
| CN105845319B CN105845319B (en) | 2017-10-31 |
Family
ID=57178086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510014910.XA Expired - Fee Related CN105845319B (en) | 2015-01-12 | 2015-01-12 | High frequency transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105845319B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2170566Y (en) * | 1993-03-09 | 1994-06-29 | 唐圣严 | Even number full transposition type combined equalized current reactor and wave resistance apparatus |
| CN2247862Y (en) * | 1996-07-16 | 1997-02-19 | 胡素珍 | Transformer with magnetic material protection box also used as low-voltage winding |
| CN2525658Y (en) * | 2002-04-02 | 2002-12-11 | 李志俊 | High frequency switch transformer winding structure and bus plate support |
| CN201402730Y (en) * | 2009-03-19 | 2010-02-10 | 成都立腾实业有限公司 | Novel transformer structure |
| CN103700470A (en) * | 2013-09-13 | 2014-04-02 | 华中科技大学 | High-power and medium-frequency isolation transformer |
| CN204375522U (en) * | 2015-01-12 | 2015-06-03 | 肖敏 | High frequency transformer |
-
2015
- 2015-01-12 CN CN201510014910.XA patent/CN105845319B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2170566Y (en) * | 1993-03-09 | 1994-06-29 | 唐圣严 | Even number full transposition type combined equalized current reactor and wave resistance apparatus |
| CN2247862Y (en) * | 1996-07-16 | 1997-02-19 | 胡素珍 | Transformer with magnetic material protection box also used as low-voltage winding |
| CN2525658Y (en) * | 2002-04-02 | 2002-12-11 | 李志俊 | High frequency switch transformer winding structure and bus plate support |
| CN201402730Y (en) * | 2009-03-19 | 2010-02-10 | 成都立腾实业有限公司 | Novel transformer structure |
| CN103700470A (en) * | 2013-09-13 | 2014-04-02 | 华中科技大学 | High-power and medium-frequency isolation transformer |
| CN204375522U (en) * | 2015-01-12 | 2015-06-03 | 肖敏 | High frequency transformer |
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| Publication number | Publication date |
|---|---|
| CN105845319B (en) | 2017-10-31 |
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