CN105845319B - High frequency transformer - Google Patents
High frequency transformer Download PDFInfo
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- CN105845319B CN105845319B CN201510014910.XA CN201510014910A CN105845319B CN 105845319 B CN105845319 B CN 105845319B CN 201510014910 A CN201510014910 A CN 201510014910A CN 105845319 B CN105845319 B CN 105845319B
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- pressure winding
- high pressure
- conductive plate
- plate
- conductive
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Abstract
The present invention proposes a kind of high frequency transformer, including electric conductor, it is sheathed on some high pressure winding coils on electric conductor, enclose the conductive tube outside each high pressure winding coil and be located at first conductive plate and the second conductive plate at the conductive tube two ends respectively, the two ends of the electric conductor are passed by the first conductive plate and the second conductive plate respectively, the first insulating barrier is provided between the outer surface of the electric conductor and each high pressure winding coil, the second insulating barrier is provided between each high pressure winding coil and conductive tube, one first bakelite plate is folded between per two adjacent high pressure winding coils and between the first conductive plate respectively, one second bakelite plate is folded between second conductive plate high pressure winding adjacent thereto, one end of conductive tube leans with the first conductive plate, the other end is separated by the second bakelite plate with the second conductive plate, each high pressure winding coil is connected in parallel with each other.High-frequency transformer structure in the present invention is simple, and the design of conductive tube both effectively reduces leakage field, again as protection 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 powers, and its performance directly influences the property of Switching Power Supply
Energy.
The high frequency transformer that the manufacturer of current Switching Power Supply uses generally all is the first coiling high pressure on toroidal core
Winding, then the coiling low pressure winding outside high pressure winding.Because high frequency switch power is usually used for the field of low-voltage and high-current
Close, therefore low pressure winding generally uses heavy gauge wire around to 1 circle or 2 circles, but so the low pressure winding of the number of turn is difficult and high pressure winding less
Fully coupling, causes transformer leakage inductance very big.Therefore, industry produces a kind of transformer of entitled beetle, though this transformer
The problem of leakage inductance is big can be so solved, but this transformer makes complicated, causes production efficiency low, and production cost is higher.Cause
This, awaits createing the high frequency transformer that a leakage inductance is small and manufacturing cost is low.
The content of the invention
The present invention proposes a kind of high frequency transformer, the problems such as solving big leakage inductance in the prior art and complicated manufacturing process.
The technical proposal of the invention is realized in this way：
A kind of high frequency transformer, including an electric conductor, be sheathed on the electric conductor some high pressure winding coils, enclose and be located at
Conductive tube outside each high pressure winding coil and the first conductive plate and the second conductive plate for being located at the conductive tube two ends respectively, the conduction
The two ends of body are passed by the first conductive plate and the second conductive plate respectively, between the outer surface of the electric conductor and each high pressure winding coil
Provided with the first insulating barrier, the second insulating barrier is provided between each the high pressure winding coil and conductive tube, per two adjacent high voltage windings
It is folded between one first bakelite plate, first conductive plate high pressure winding coil adjacent thereto and is also pressed from both sides respectively between group coil
Provided with first bakelite plate, one second electricity is folded between second conductive plate high pressure winding adjacent thereto and conductive tube
Plank, one end of the conductive tube is leant with the first conductive plate, and the other end is separated by the second bakelite plate with the second conductive plate, institute
Each high pressure winding coil is stated to be connected in parallel with each other.
Preferred scheme is that the conductive tube is the cylindrical shape being bent into by a square conductive plate.
Preferred scheme is, some openings are correspondingly provided with respectively in relative two side ends of the square conductive plate, and this is square to lead
Electroplax is bent into after cylindrical shape, and its side end provided with opening leans, and forms some confession high pressure winding wires in the side end position
The hole that the lead of circle is passed.
Preferred scheme is that the square conductive plate is square copper coin or square aluminium sheet.
Preferred scheme is that each high pressure winding coil includes an annular core and the coil being wrapped on the annular core.
Preferred scheme is that the annular core is annular ultracrystallite soft magnetic core or annular ferrite core.
Preferred scheme is that first insulating barrier and the second insulating barrier are respectively dielectric film or insulation material layer.
Preferred scheme is that the electric conductor is copper pipe, copper rod, aluminum pipe or aluminium bar.
Preferred scheme is, the part of the two ends of the electric conductor outside conductive plate is fixed by nut.
Preferred scheme is, the Same Name of Ends of each high pressure winding coil is in parallel connection, and as the input of high frequency transformer,
Part of the two ends of the electric conductor outside conductive plate is the output end of high frequency transformer.
Beneficial effects of the present invention are：
High-frequency transformer structure in the present invention is simple, so that cost-effective, the electric conductor is equivalent to low pressure winding line
Circle, its sectional area is very big, so allowing by big electric current without generating heat, can effectively prevent that temperature is too high and damages, by institute
The one end and the first conductive plate for stating conductive tube are connected, and the other end is separated with the second conductive plate by the second bakelite plate, and it can
Enclosed as a part for low pressure winding coil, and closely located at the periphery of high pressure winding coil, both effectively reduce leakage field, again
As protection shell, so as to improve the protective capacities of transformer.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the diagrammatic cross-section of high frequency transformer of the present invention；
Fig. 2 be Fig. 1 in conductive tube be bent before square plate body structural representation.
In figure：
100th, high frequency transformer；10th, electric conductor；20th, high pressure winding coil；30th, conductive tube；40th, the first conductive plate；50、
Second conductive plate；60th, the first insulating barrier；21st, iron core；22nd, coil；70th, the first bakelite plate；80th, the second bakelite plate；31st, it is square
Conductive plate；32nd, it is open；90th, the second insulating barrier.
Embodiment
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 clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
As shown in figure 1, the high frequency transformer 100 includes the electric conductor 10 that a profile is cylinder, is sheathed on the electric conductor
Some high pressure winding coils 20 on 10, the conductive tube 30 being sheathed on outside high pressure winding coil 20 and it is located at the conductive tube 30 respectively
The first conductive plate 40 and the second conductive plate 50 of opposite end.
The electric conductor 10 is copper pipe, copper rod, aluminum pipe, aluminium bar or other bodys or barred body for conducting electricity very well.The electric conductor
The first insulating barrier 60 is provided between 10 outer surface and each high pressure winding coil 20, with the inner surface phase with high pressure winding coil 20
Insulation.First insulating barrier 60 can be to be located at electric conductor outer peripheral face in the dielectric film of electric conductor outer peripheral face, or located at applying
Insulation material layer.
The present embodiment is illustrated by taking 4 high pressure winding coils 20 as an example, when it is implemented, being sheathed on the height on electric conductor
The number of pressure winding coil 20 is not limited by the present embodiment, can be accordingly increased or be reduced according to the requirement of output voltage.
Each high pressure winding coil 20 includes an annular core 21 and the coil 22 being wrapped on the annular core 21.The annular core
21 can be the annular soft magnetic materials iron core such as ultracrystallite soft magnetic core or annular ferrite core.
One first bakelite plate 70 is folded between per two adjacent high pressure winding coils 20.Every one first bakelite plate 70 is circle
Annular plate-like, its endoporus is just passed through for electric conductor 10, and its external diameter is identical with the periphery of high pressure winding coil 20, by each high voltage winding
Group coil 20 is separated.Also first bakelite is folded between first conductive plate 40 high pressure winding coil 20 adjacent thereto
Plate 70.One second bakelite plate 80 is folded between second conductive plate 50 high pressure winding 20 adjacent thereto.Second bakelite
Plate 80 is annular tabular, and its endoporus is just passed through for electric conductor, and its external diameter is not less than the external diameter of conductive tube 30.I.e. described each
One bakelite plate 70 separates each conductive plate 40 of high pressure winding coil 20 and first, and the end of conductive tube 30 is resisted against the first conduction
On plate 40；Second bakelite plate 80 separates the second conductive plate 40 and conductive tube 30, meanwhile, the second conductive plate 50 is adjacent thereto
High pressure winding coil 20 is separated.
Please refer to Fig. 2, in the present embodiment, the conductive tube 30 is the cylinder being bent into by a square conductive plate 31
Some semicircular openings 32, the square conductive plate 31 are correspondingly provided with respectively in shape, relative two side ends of the square conductive plate 31
It is bent into after cylindrical shape, its side end provided with opening 32 leans, and forms some circular holes in the side end position, for
The lead of high pressure winding coil is passed by each hole.The square conductive plate 31 is bent into after conductive tube 30 two that it is provided with opening 32
Side end is not mutually permanently connected, so as to the installation and dismounting of each component in the inner.When it is implemented, the conductive tube 30
Material is not limited by the present embodiment, and it can be square copper coin, or square aluminium sheet, or other metal materials for conducting electricity very well
Flitch bending is formed.The Same Name of Ends of each high pressure winding coil 20 is in parallel connection, using the input as high frequency transformer 100.
The shape for the opening 32 that the side end of the square conductive plate 31 is provided with is not limited to the case for this embodiment, and it can be semicircle, also may be used
For circular arc, or other shapes for being mutually combined.
The second insulating barrier 90 is provided between each high pressure winding coil 20 and conductive tube 30, by each high pressure winding coil
20 outer surface and the inner surface of conductive tube 30 are separated.Second insulating barrier 90 is located at the overall outer peripheral face of high pressure winding coil 20
Dielectric film, or apply located at the inner surface of conductive tube 30 insulation material layer.
The conductive plate 50 of first conductive plate 40 and second is respectively rectangle tabular, and its endoporus supplies the two ends of electric conductor 10
Pass.The two ends of the electric conductor 10 are respectively equipped with external screw thread in the surface outside conductive plate 40,50, and it is conductive that it is each passed through first
Fixation is screwed togather by nut again after the conductive plate 50 of plate 40 and second.The two ends of the electric conductor 10 are used as high frequency transformer 100
Output end.The periphery of the conductive plate 50 of first conductive plate 40 and second extends to the periphery of high pressure winding coil 20.It is specific real
Shi Shi, the fixed form between the two ends of electric conductor 10 and conductive plate 40,50 is not limited to the case for this embodiment, can also pass through weldering
The other modes such as connect, rivet, crimping mutually to fix.In the present embodiment, first conductive plate 40 is respectively with the second conductive plate 50
Copper coin, when it is implemented, the material of first conductive plate 40 and the second conductive plate 50 is not limited by the present embodiment, it also may be used
For aluminium sheet, copper-aluminum composite board or other plate bodys conducted electricity very well.
In use, several high pressure winding coils 20 are connected in parallel, its electric conductor 10 worn constitutes low pressure winding coil,
Due to its center also cross all high pressure winding coils 20, that is, several secondary are connected in series for the coil of 1 circle,
So both can be by having changed the number of high pressure winding coil 20, arbitrarily the grade of adjustment output voltage, can also pass through and change
The number of high pressure winding coil 20 adjusts the size of power output, simple in construction, so that cost-effective.Simultaneously as described
Electric conductor 10 is equivalent to low pressure winding coil, and its sectional area is very big, so allowing by big electric current without generating heat, can effectively prevent
Only temperature is too high and damage.Because one end of the conductive tube 30 is connected with the first conductive plate 40, the other end is led with second
Electroplax 50 is separated by the second bakelite plate 80, its can as low pressure winding coil a part, and closely enclose located at high pressure winding
The periphery of coil 20, both effectively reduces leakage field, again as protection shell, so as to improve the protection of high frequency transformer 100
Ability.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
God is with principle, and any modification, equivalent substitution and improvements made etc. should be included in the scope of the protection.
Claims (10)
1. a kind of high frequency transformer, it is characterised in that：Including an electric conductor, some high pressure winding wires being sheathed on the electric conductor
Enclose, enclose the conductive tube outside each high pressure winding coil and be located at respectively first conductive plate and the second conduction at the conductive tube two ends
Plate, the two ends of the electric conductor are passed by the first conductive plate and the second conductive plate respectively, the outer surface of the electric conductor and each high voltage winding
The first insulating barrier is provided between group coil, the second insulating barrier is provided between each the high pressure winding coil and conductive tube, per adjacent
Two high pressure winding coils between be folded with one first bakelite plate, first conductive plate high pressure winding wire adjacent thereto respectively
Also one first bakelite plate is folded between circle, is folded between second conductive plate high pressure winding adjacent thereto and conductive tube
One second bakelite plate, one end of the conductive tube leans with the first conductive plate, and the other end is conductive by the second bakelite plate and second
Plate is separated, and 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：The conductive tube is bent into by a square conductive plate
Cylindrical shape.
3. high frequency transformer as claimed in claim 2, it is characterised in that：In relative two side ends of the square conductive plate respectively
Be correspondingly provided with some openings, the square conductive plate is bent into after cylindrical shape, it leans provided with two side ends of opening, and in this two
Side end position forms the hole that the lead of some confession high pressure winding coils is passed.
4. high frequency transformer as claimed in claim 2, it is characterised in that：The square conductive plate is square copper coin or square aluminum
Plate.
5. high frequency transformer as claimed in claim 1, it is characterised in that：Each high pressure winding coil include an annular core and
It is wrapped in the coil on the annular core.
6. high frequency transformer as claimed in claim 5, it is characterised in that：The annular core be annular ultracrystallite soft magnetic core or
Annular ferrite core.
7. high frequency transformer as claimed in claim 1, it is characterised in that：First insulating barrier and the second insulating barrier are respectively
Dielectric film.
8. high frequency transformer as claimed in claim 1, it is characterised in that：The electric conductor is copper pipe, copper rod, aluminum pipe or aluminium
Rod.
9. high frequency transformer as claimed in claim 1, it is characterised in that：Portion of the two ends of the electric conductor outside conductive plate
Divide and fixed by nut.
10. the high frequency transformer as any one of claim 1 to 9, it is characterised in that：Each high pressure winding coil it is same
Name end is in parallel connection, and as the input of high frequency transformer, and the part of the two ends of the electric conductor outside conductive plate is
The output end 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 CN105845319A (en) | 2016-08-10 |
| CN105845319B true 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 case capable of using as low voltage windings |
| 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 case capable of using as low voltage windings |
| 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 |
|---|---|
| CN105845319A (en) | 2016-08-10 |
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Granted publication date: 20171031 Termination date: 20210112 |