CN206976152U - A kind of E magnetic cores parallel combination type flat surface transformer - Google Patents
A kind of E magnetic cores parallel combination type flat surface transformer Download PDFInfo
- Publication number
- CN206976152U CN206976152U CN201720932498.4U CN201720932498U CN206976152U CN 206976152 U CN206976152 U CN 206976152U CN 201720932498 U CN201720932498 U CN 201720932498U CN 206976152 U CN206976152 U CN 206976152U
- Authority
- CN
- China
- Prior art keywords
- pcb windings
- flat surface
- magnetic cores
- combination type
- type flat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Coils Or Transformers For Communication (AREA)
- Coils Of Transformers For General Uses (AREA)
Abstract
The utility model provides a kind of E magnetic cores parallel combination type flat surface transformer, including primary side PCB windings plate, secondary PCB windings plate, magnetic core, epoxy sheet and pin；The magnetic core has multiple, and multiple magnetic cores are in parallel and same primary and secondary winding intersects and stacked, and are provided with thermal insulation board at the top of magnetic core, Logo is printed on thermal insulation board；The primary side PCB windings plate, secondary PCB windings plate, which intersect, to be stacked, and interlayer is isolated every using epoxy sheet.Stacked system coupling is good used by the utility model, and control leakage inductance is low, and distribution capacity is small, has the characteristics such as high frequency, high pressure, high power density, high power transmission efficiency, low-loss, meets the development trend of flattening design.
Description
Technical field
A kind of E magnetic cores parallel combination type flat surface transformer is the utility model is related to, belongs to design of transformer field.
Background technology
As electronic circuit is to high frequency, high power density, high reliability, high integration development, dc source is proposed
Higher requirement.High switching frequency, low-loss, high power density, switching frequency high frequency, modularization, flattening are direct currents
The development trend of power supply.The direct-current switch power supply of requirement can be better met at present, typically by the way of Sofe Switch resonance,
In order to reduce the volume of whole power supply, the inductor and electric capacity of general resonance circuit by main transformer leakage inductance and distribution capacity
The distribution capacity of switching tube (also have) provides.But the leakage inductance of traditional transformer and distribution capacity, it is difficult to control its batch one
Cause property, very big difficulty thus is brought to actual circuit batch production debugging, the stereochemical structure of traditional transformer has been in addition
It is not suitable for the trend of present power supply flattening, because its structure is unfavorable for radiating, so high frequency difficult to realize, low-loss, height
Power is close, the development trend of Flat modulus.
Utility model content
In order to solve the above technical problems, the utility model provides a kind of E magnetic cores parallel combination type flat surface transformer, the E
Magnetic core parallel combination type flat surface transformer has the characteristics that high frequency, high power density, high efficiency, meets the development of flattening design
Trend.
The utility model is achieved by the following technical programs.
A kind of E magnetic cores parallel combination type flat surface transformer provided by the utility model, including primary side PCB windings plate, secondary
PCB windings plate, magnetic core, epoxy sheet and pin；The magnetic core has multiple, and multiple magnetic cores are in parallel and same primary and secondary winding
Intersection stacks, and is provided with thermal insulation board at the top of magnetic core, Logo is printed on thermal insulation board；The primary side PCB windings plate, secondary PCB
Winding plate, which intersects, to be stacked, and interlayer is isolated every using epoxy sheet；The primary side PCB windings plate, secondary PCB winding plates are placed in simultaneously
Join in the magnetic core placed, through hole, primary side PCB windings plate, secondary PCB are provided with primary side PCB windings plate, secondary PCB winding plates
Winding plate is fixed in through-holes by the way that pin is interspersed.
The magnetic core uses MnZn series FERRITE CORE.
The magnetic core has four.
The through hole is set close to four angles of magnetic core.
The same primary and secondary winding only has number of turn loop more than one.
It is S-P-S-P-S-P-S that described primary and secondary winding intersection, which stacks order,.
The thickness of the epoxy sheet is 0.3mm.
The beneficial effects of the utility model are：Used stacked system coupling is good, and control leakage inductance is low, distribution capacity
It is small, there is the characteristics such as high frequency, high pressure, high power density, high power transmission efficiency, low-loss, meet the development of flattening design
Trend.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
In figure：1- primary side PCB winding plates, 2- secondary PCB winding plates, 3- magnetic cores, 4- epoxy sheets, 5- pins, 6- lead to
Hole, 7-Logo.
Embodiment
Be described further below the technical solution of the utility model, but claimed scope be not limited to it is described.
As shown in figure 1, a kind of E magnetic cores parallel combination type flat surface transformer, including primary side PCB windings plate 1, secondary PCB around
Group plate 2, magnetic core 3, epoxy sheet 4 and pin 5；The magnetic core 3 has multiple, and multiple magnetic cores 3 are in parallel and same primary and secondary winding
Intersection stacks, and parallel connection can reduce space length, the significant quantity for reducing leakage magnetic flux, thermal insulation board is provided with the top of magnetic core 3,
Good heat dissipation effect, Logo7 is printed on thermal insulation board；The primary side PCB windings plate 1, secondary PCB windings plate 2, which intersect, to be stacked, interlayer
Isolate every using epoxy sheet 4, this stacked system coupling is good, and control leakage inductance is low, is easily assembled to, primary, secondary windings
Distribution capacity is smaller；The primary side PCB windings plate 1, secondary PCB windings plate 2 are placed in the magnetic core 3 of placement in parallel, are effectively solved
Certainly electric current flows unbalanced problem, and through hole 6 is provided with primary side PCB windings plate 1, secondary PCB windings plate 2, and through hole 6 is non-gold
Categoryization through hole, primary side PCB windings plate 1, secondary PCB windings plate 2 are interspersed in through hole 6 by pin 5 and fixed, and are strengthened product and are consolidated
Property, pin 5 is using upward direct plugging-in circle pin.
Further, the magnetic core 3 uses MnZn series FERRITE CORE, and magnetic conductivity is high, and high frequency characteristics is good；The magnetic core
3 have four；The through hole 6 is set close to four angles of magnetic core 3 so that structure is compacter, reduces space length, reduces leakage
The quantity of magnetic flux；The same primary and secondary winding only has number of turn loop more than one, reduces the whole height of transformer, reduces and hands over
Flow impedance；It is S-P-S-P-S-P-S that described primary and secondary winding intersection, which stacks order, suitable for high frequency, high pressure transformation
The manufacture of device, the shunt layer of primary side and secondary winding can be allowed to flow, substantially reduce AC impedance, so as to reduce exchange damage
Consumption, compared with the method (P-S-P-S-P-S-P-S) of asymmetric interlayer insertion winding, in the range of certain frequency, A.C.power loss
It is low, and the critical frequency is distributed dependent on copper thickness and winding；The thickness of the epoxy sheet 4 is 0.3mm, is reduced whole
Body height so that structural volume reduces, and balanced balanced current flows exchanges winding loss with reduction.
Claims (7)
1. a kind of E magnetic cores parallel combination type flat surface transformer, including primary side PCB windings plate (1), secondary PCB windings plate (2), magnetic
Core (3), epoxy sheet (4) and pin (5), it is characterised in that：The magnetic core (3) has multiple, and multiple magnetic cores (3) are in parallel and same
One primary and secondary winding, which intersects, to be stacked, and is provided with thermal insulation board at the top of magnetic core (3), Logo (7) is printed on thermal insulation board；The original
Side PCB windings plate (1), secondary PCB windings plate (2), which intersect, to be stacked, and interlayer is every using epoxy sheet (4) isolation；The primary side
PCB windings plate (1), secondary PCB windings plate (2) are placed in the magnetic core (3) of placement in parallel, in primary side PCB windings plate (1), secondary
PCB windings plate (2) is provided with through hole (6), and primary side PCB windings plate (1), secondary PCB windings plate (2) are interspersed in by pin (5)
It is fixed in through hole (6).
2. E magnetic cores parallel combination type flat surface transformer as claimed in claim 1, it is characterised in that：The magnetic core (3) uses manganese
Zinc series FERRITE CORE.
3. E magnetic cores parallel combination type flat surface transformer as claimed in claim 2, it is characterised in that：The magnetic core (3) has four
It is individual.
4. E magnetic cores parallel combination type flat surface transformer as claimed in claim 1, it is characterised in that：The through hole (6) is close to magnetic
Four angles of core (3) are set.
5. E magnetic cores parallel combination type flat surface transformer as claimed in claim 1, it is characterised in that：It is described it is same it is primary and secondary around
Group only has number of turn loop more than one.
6. E magnetic cores parallel combination type flat surface transformer as claimed in claim 1, it is characterised in that：Described primary and secondary winding
It is S-P-S-P-S-P-S that intersection, which stacks order,.
7. E magnetic cores parallel combination type flat surface transformer as claimed in claim 1, it is characterised in that：The epoxy sheet (4)
Thickness be 0.3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720932498.4U CN206976152U (en) | 2017-07-28 | 2017-07-28 | A kind of E magnetic cores parallel combination type flat surface transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720932498.4U CN206976152U (en) | 2017-07-28 | 2017-07-28 | A kind of E magnetic cores parallel combination type flat surface transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206976152U true CN206976152U (en) | 2018-02-06 |
Family
ID=61398926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720932498.4U Active CN206976152U (en) | 2017-07-28 | 2017-07-28 | A kind of E magnetic cores parallel combination type flat surface transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206976152U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110491662A (en) * | 2019-08-29 | 2019-11-22 | 中国振华（集团）新云电子元器件有限责任公司 | A kind of assemble method of combination type transformer |
| WO2020020393A1 (en) * | 2018-07-22 | 2020-01-30 | Kiefel Gmbh | Apparatus and method for operating a variable-impedance load on the planar transformer in high-frequency mode ii |
| CN113421756A (en) * | 2021-06-23 | 2021-09-21 | 北京航空航天大学 | High-frequency high-power multi-magnetic-core combined planar transformer |
| WO2023277555A1 (en) * | 2021-06-29 | 2023-01-05 | 엘지이노텍(주) | Ultra-slim magnetic coupling device |
-
2017
- 2017-07-28 CN CN201720932498.4U patent/CN206976152U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020020393A1 (en) * | 2018-07-22 | 2020-01-30 | Kiefel Gmbh | Apparatus and method for operating a variable-impedance load on the planar transformer in high-frequency mode ii |
| CN110491662A (en) * | 2019-08-29 | 2019-11-22 | 中国振华（集团）新云电子元器件有限责任公司 | A kind of assemble method of combination type transformer |
| CN113421756A (en) * | 2021-06-23 | 2021-09-21 | 北京航空航天大学 | High-frequency high-power multi-magnetic-core combined planar transformer |
| WO2023277555A1 (en) * | 2021-06-29 | 2023-01-05 | 엘지이노텍(주) | Ultra-slim magnetic coupling device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206976152U (en) | A kind of E magnetic cores parallel combination type flat surface transformer | |
| CN201138608Y (en) | Novel planar transformer | |
| US20140167896A1 (en) | Coupled inductor | |
| CN203205229U (en) | Large-current planar transformer manufactured on printed circuit board | |
| CN102446620A (en) | High-frequency flat-panel transformer | |
| CN208444729U (en) | A kind of no-load voltage ratio and the adjustable flat surface transformer of overcurrent capability | |
| TW200522095A (en) | Transformer structure | |
| CN205428676U (en) | LLC resonance transformer | |
| CN105304296A (en) | Planar transformer of printed circuit board | |
| CN202695101U (en) | Assembled planar transformer | |
| CN104882260A (en) | Planar transformer | |
| CN206282700U (en) | A kind of TV power supplys multi-layer PCB XY switch power transformer | |
| CN202662442U (en) | Planar high-frequency transformer based on single-deck PCB (Printed Circuit Board) | |
| CN204066973U (en) | Flat surface transformer | |
| CN202307480U (en) | Independent multilayer printed circuit board (PCB) planar transformer | |
| CN207425599U (en) | A kind of hyperfrequency secondary resonance transformer | |
| CN206331886U (en) | Heavy-current planar transformer | |
| CN206471205U (en) | A kind of adjustable flat surface transformer | |
| CN204577235U (en) | Flat surface transformer | |
| CN202102847U (en) | Novel deformer | |
| CN210325449U (en) | Magnetic integration type high-power-density series-parallel planar transformer of LLC half-bridge circuit | |
| CN208655393U (en) | A kind of flat-plate transformer | |
| CN207009263U (en) | A kind of flat surface transformer of integrated current transformer | |
| CN207925284U (en) | A kind of resonant inductor | |
| CN206921609U (en) | A kind of Switching Power Supply high-frequency flat-panel transformer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |