CN105761881A - Planar winding coil for double-column magnetic core structure - Google Patents
Planar winding coil for double-column magnetic core structure Download PDFInfo
- Publication number
- CN105761881A CN105761881A CN201610341715.2A CN201610341715A CN105761881A CN 105761881 A CN105761881 A CN 105761881A CN 201610341715 A CN201610341715 A CN 201610341715A CN 105761881 A CN105761881 A CN 105761881A
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- CN
- China
- Prior art keywords
- winding
- double
- copper
- windings
- cabling
- 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.)
- Pending
Links
- 238000004804 winding Methods 0.000 title claims abstract description 60
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229910052802 copper Inorganic materials 0.000 claims abstract description 16
- 239000010949 copper Substances 0.000 claims abstract description 16
- 239000000463 material Substances 0.000 claims abstract description 3
- 239000010410 layer Substances 0.000 abstract description 7
- 239000002356 single layer Substances 0.000 abstract description 3
- 238000003466 welding Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 8
- JEIPFZHSYJVQDO-UHFFFAOYSA-N ferric oxide Chemical compound O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000011889 copper foil Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000001465 metallisation Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F17/00—Fixed inductances of the signal type
- H01F17/0006—Printed inductances
- H01F17/0013—Printed inductances with stacked layers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F17/00—Fixed inductances of the signal type
- H01F17/0006—Printed inductances
- H01F17/0033—Printed inductances with the coil helically wound around a magnetic core
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/2804—Printed windings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F17/00—Fixed inductances of the signal type
- H01F17/0006—Printed inductances
- H01F17/0013—Printed inductances with stacked layers
- H01F2017/002—Details of via holes for interconnecting the layers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/2804—Printed windings
- H01F2027/2809—Printed windings on stacked layers
Abstract
The invention discloses a planar winding coil for a double-column magnetic core structure.The head ends and the tail ends of PCB series windings are both led out from plated-through hole welding plates arranged on the outer edge of a PCB; the PCB is provided with two parallel magnetic core column installing through holes; a double-faced copper-coated base material is wired to form the four windings surrounding the two core column holes; the edge of each core column hole passes through a copper-faced wiring via hole, and therefore copper-coated wires surrounding the same core column form the double-layer series windings with the same winding direction; the two double-layer series windings surrounding the different core columns are connected in series in the opposite winding direction to form a double-column whole-board winding with the four windings connected in series.According to the planar winding coil, the technical limitation that a planar transformer single-column winding is manufactured on a traditional circuit board is changed, and under the condition of the same winding carrier density, the winding number two times of that of a single-layer board and the winding inductance value four times of that of the single-layer board can be achieved.
Description
Technical field
The present invention relates to a kind of plane winding coil, particularly relate to a kind of plane winding coil suitable in twin columns core structure.
Background technology
Transformator is the significant components that electronic product is powered.Existing volume of transformer is tall and big, it is impossible to meet product to small-sized, slimming demand for development.Flat surface transformer is flat-faced tube transformator especially, it is at multilayer board (Printedcircuitboard, PCB) the upper conductive foil such as Copper Foil of laying are as winding, the transformator of storehouse, and the winding of this planar structure can be substantially reduced the thickness of transformator.Flat surface transformer is widely used in the products such as communication, computer, Industry Control, aeronautical engineering, armarium.But, due to the limitation of printed circuit board machining process and copper clad layers thickness, umber of turn and water conservancy diversion cross section that monolayer Copper Foil is formed are all extremely limited, are suitable only for the utilization condition of some small-power low voltage DC/DC changers.For require umber of turn more (as: there is the AC/DC of high voltage input) or require the application occasion of larger current density, only by the string of circuit board of multilamellar and reach the requirement of the number of turn and electric current density, so flat surface transformer is accomplished by using the circuit board of quite a lot of number of plies to build up, and the structure feature making flat-plate transformer little, thin is all gone.Meanwhile, make mistake line between Winding Design, board layer all define technical difficulty and manufacturing cost rises violently；Blocked up winding causes a series of problems such as stray transformer flux rising, efficiency reduction, noise jamming on the contrary.As can be seen here, existing its practicality of plate surface transformator is quite to limit to.How when keeping many technical characteristics such as printing board type flat surface transformer slimming, low magnetism leakage, high efficiency, effectively solve the technical barrier that above-mentioned industry urgently overcomes.The technology puts into the technical background of research and development just.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, it is proposed that a kind of flat-faced tube winding coil suitable in twin columns core structure.
A kind of flat-faced tube winding coil suitable in twin columns core structure, especially a kind of two-sided PCB by lamination combo flat surface transformer covers copper coil.
The plated through-hole pad that the initial and end end of pcb board series connection winding is all arranged from the outer edge of pcb board is drawn；Pcb board has two core post arranged in parallel through hole is installed；With double-sided copper-clad base material cabling, and form four windings around two core pole holes；Each core pole hole edge passes through copper face cabling via, makes the copper cabling that covers around same stem stem be formed around to identical " double-deck series connection winding "；Two around different stem stems " double-deck series connection windings " are made namely to may make up the imposite winding of twin columns, four windings in series by around to carrying out on the contrary connecting.
Described each core pole hole edge passes through multiple copper face cabling vias.
Beneficial effect:
1, the present invention changes conventional print-circuit board and makes the technology limitation of flat surface transformer single-column winding, when identical winding current carrying density, can obtain the number of turns of lamina face twice and the winding inductance amount of four times；
2, compared with the board-like winding of single-column structure, when identical umber of turn can at double reduce board-like winding total number of plies, greatly reduce the gross thickness of board-like transformator, be the key technology realizing the slim words of plate surface transformator；
3, between the twin columns that this technological innovation is released, 8 font strings, around connection, cross the winding connecting method of line in post center interlayer, make the design of form printed circuit coils winding become very simple, make identical number of plies form printed circuit coils realize number of turns and maximize；
4, this technology is by serial for the standardized structural that printed circuit Winding Design is " two-sided winding soleplate ".Match corresponding magnetic core and soleplate according to the transformer parameter required by various electric source topologies, obtain required umber of turn and winding current by string winding flaggy, combo can become various dissimilar and specification transformator.Change the limitation that traditional circuit-board winding can only be special；Meanwhile, technical difficulty and higher processing cost that printed circuit winding makes are greatly reduced.The flexible craft making normalized base plate combo transformator comes true
5, this printed circuit winding soleplate winding relates to into the symmetrical structure that the twin columns number of turn is divided equally, it is ensured that magnetomotive balance between twin columns, makes the specification of magnetoelectricity electromagnetism and the minimizing of leakage magnetic flux obtain fabulous effect；
6 adopt from this soleplate combo transformator simultaneously be dielectrically separated from diaphragm can join by different dielectric strengths insulate between lap winding, isolation physical layer makes isolated form AC/DC, the DC/DC of the various topology of high density combo all become to facilitate technique and technology；
7, the technology is adopted can directly to save, compared with tradition and coiling making high frequency transformer, the processing cost accounting for traditional handicraft coiling consuming about 50%, and cannot ensure and make the quality of transformator and the limitation of technology mode, also it is the important prerequisite of conventional highfrequency transformator automated production.
Accompanying drawing explanation
Fig. 1 is pcb board Facad structure schematic diagram of the present invention；
Fig. 2 is pcb board inverse layer structure schematic diagram of the present invention.
Detailed description of the invention
Such as Fig. 1, shown in Fig. 2, a kind of plane winding coil suitable in twin columns core structure, including a pcb board, pcb board limit has plated through-hole pad 1 and covers the head of copper cabling for connecting series connection winding, tail end, pcb board has two and through hole 2 is installed for laying magnetic core, series connection winding covers copper cabling 3 head end and connects one of them pad in plated through-hole pad, around the wherein first installation through hole from the multi-turn that detours inside outward, guide to pcb board reverse side by multiple metallization vias 4 to begin around first and through hole is installed from the interior multi-turn that detours outward, after outmost turns, through hole is installed from the multi-turn that detours inside outward around second inside from outer again；Guiding to pcb board front by the via that metallizes after having detoured and begin around second installation through hole from after the interior multi-turn that detours outward, tail end receives another pad having in plated through-hole pad on pcb board limit；Cover copper cabling top, tail end to be connected with one of them pad having on pcb board limit in plated through-hole pad respectively, obtain one layer of pcb board plane winding coil.
Covering copper cabling in pcb board approximately the same plane, two installation through hole direction of windings are contrary；The copper cabling that covers in positive and negative two faces of the same installing hole of pcb board carries out cabling according to projected footprint.
Claims (3)
1. the plane winding coil being applicable to twin columns core structure, it is characterised in that: the plated through-hole pad that the initial and end end of pcb board series connection winding is all arranged from the outer edge of pcb board is drawn；Pcb board has two core post arranged in parallel through hole is installed；With double-sided copper-clad base material cabling, and form four windings around two core pole holes；Each core pole hole edge passes through copper face cabling via, makes the copper cabling that covers around same stem stem be formed around to identical " double-deck series connection winding "；Two around different stem stems " double-deck series connection windings " are made namely to may make up the imposite winding of twin columns, four windings in series by around to carrying out on the contrary connecting.
2. a kind of plane winding coil suitable in twin columns core structure according to claim 1, it is characterised in that: described each core pole hole edge passes through multiple copper face cabling vias.
3. a kind of plane winding coil suitable in twin columns core structure according to claim 1, it is characterised in that: the copper cabling that covers in positive and negative two faces of the same installing hole of pcb board carries out cabling according to projected footprint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610341715.2A CN105761881A (en) | 2016-05-20 | 2016-05-20 | Planar winding coil for double-column magnetic core structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610341715.2A CN105761881A (en) | 2016-05-20 | 2016-05-20 | Planar winding coil for double-column magnetic core structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105761881A true CN105761881A (en) | 2016-07-13 |
Family
ID=56324326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610341715.2A Pending CN105761881A (en) | 2016-05-20 | 2016-05-20 | Planar winding coil for double-column magnetic core structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105761881A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106971829A (en) * | 2017-04-28 | 2017-07-21 | 华为技术有限公司 | Flat surface transformer |
| CN110136922A (en) * | 2018-02-09 | 2019-08-16 | 弘邺科技有限公司 | Inductance element with the molding coil-conductor of conducting resinl |
| CN110753980A (en) * | 2017-06-26 | 2020-02-04 | 高通股份有限公司 | Low DC resistance and high RF resistance power amplifier choke inductor |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5631822A (en) * | 1995-08-24 | 1997-05-20 | Interpoint Corporation | Integrated planar magnetics and connector |
| JPH09283335A (en) * | 1996-04-15 | 1997-10-31 | Murata Mfg Co Ltd | Multilayered board device |
| US20040145445A1 (en) * | 2003-01-28 | 2004-07-29 | Entrust Power Co.,Ltd | Transformer structure |
| CN1672223A (en) * | 2002-07-25 | 2005-09-21 | 皇家飞利浦电子股份有限公司 | Planar inductance |
| CN202307480U (en) * | 2011-11-14 | 2012-07-04 | 成都芯通科技股份有限公司 | Independent multilayer printed circuit board (PCB) planar transformer |
| CN202513015U (en) * | 2012-03-16 | 2012-10-31 | 广州金升阳科技有限公司 | Planar transformer |
| CN103107166A (en) * | 2013-01-23 | 2013-05-15 | 华中科技大学 | Inductor and wireless coupling communication system in three-dimensional stack packaging chip |
| CN203205230U (en) * | 2013-05-06 | 2013-09-18 | 易峰 | Planar transformer in switching power supply |
| CN103645451A (en) * | 2013-12-06 | 2014-03-19 | 东南大学 | Low field nuclear magnetic resonance probe based on printed circuit board helmholtz coil |
| CN103928219A (en) * | 2014-03-21 | 2014-07-16 | 长兴柏成电子有限公司 | Multi-winding planar transformer manufactured on PCBs (printed circuit boards) |
| CN103943332A (en) * | 2014-03-07 | 2014-07-23 | 杭州电子科技大学 | Winding design method for multi-winding output planar transformer |
| CN105590735A (en) * | 2016-03-14 | 2016-05-18 | 饶波 | Planar transformer |
| CN205789371U (en) * | 2016-05-20 | 2016-12-07 | 浙江求缺科技有限公司 | It is applicable to the plane winding coil of twin columns core structure |
-
2016
- 2016-05-20 CN CN201610341715.2A patent/CN105761881A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5631822A (en) * | 1995-08-24 | 1997-05-20 | Interpoint Corporation | Integrated planar magnetics and connector |
| JPH09283335A (en) * | 1996-04-15 | 1997-10-31 | Murata Mfg Co Ltd | Multilayered board device |
| CN1672223A (en) * | 2002-07-25 | 2005-09-21 | 皇家飞利浦电子股份有限公司 | Planar inductance |
| US20040145445A1 (en) * | 2003-01-28 | 2004-07-29 | Entrust Power Co.,Ltd | Transformer structure |
| CN202307480U (en) * | 2011-11-14 | 2012-07-04 | 成都芯通科技股份有限公司 | Independent multilayer printed circuit board (PCB) planar transformer |
| CN202513015U (en) * | 2012-03-16 | 2012-10-31 | 广州金升阳科技有限公司 | Planar transformer |
| CN103107166A (en) * | 2013-01-23 | 2013-05-15 | 华中科技大学 | Inductor and wireless coupling communication system in three-dimensional stack packaging chip |
| CN203205230U (en) * | 2013-05-06 | 2013-09-18 | 易峰 | Planar transformer in switching power supply |
| CN103645451A (en) * | 2013-12-06 | 2014-03-19 | 东南大学 | Low field nuclear magnetic resonance probe based on printed circuit board helmholtz coil |
| CN103943332A (en) * | 2014-03-07 | 2014-07-23 | 杭州电子科技大学 | Winding design method for multi-winding output planar transformer |
| CN103928219A (en) * | 2014-03-21 | 2014-07-16 | 长兴柏成电子有限公司 | Multi-winding planar transformer manufactured on PCBs (printed circuit boards) |
| CN105590735A (en) * | 2016-03-14 | 2016-05-18 | 饶波 | Planar transformer |
| CN205789371U (en) * | 2016-05-20 | 2016-12-07 | 浙江求缺科技有限公司 | It is applicable to the plane winding coil of twin columns core structure |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106971829A (en) * | 2017-04-28 | 2017-07-21 | 华为技术有限公司 | Flat surface transformer |
| CN106971829B (en) * | 2017-04-28 | 2019-03-01 | 华为技术有限公司 | Flat surface transformer |
| CN110753980A (en) * | 2017-06-26 | 2020-02-04 | 高通股份有限公司 | Low DC resistance and high RF resistance power amplifier choke inductor |
| CN110753980B (en) * | 2017-06-26 | 2021-08-06 | 高通股份有限公司 | Low DC resistance and high RF resistance power amplifier choke inductor |
| CN110136922A (en) * | 2018-02-09 | 2019-08-16 | 弘邺科技有限公司 | Inductance element with the molding coil-conductor of conducting resinl |
| CN110136922B (en) * | 2018-02-09 | 2021-03-12 | 弘邺科技有限公司 | Inductance element with coil conductor formed by conductive adhesive |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160713 |
|
| RJ01 | Rejection of invention patent application after publication |