CN101728072A - Mixed type flat surface transformer - Google Patents
Mixed type flat surface transformer Download PDFInfo
- Publication number
- CN101728072A CN101728072A CN201010003027A CN201010003027A CN101728072A CN 101728072 A CN101728072 A CN 101728072A CN 201010003027 A CN201010003027 A CN 201010003027A CN 201010003027 A CN201010003027 A CN 201010003027A CN 101728072 A CN101728072 A CN 101728072A
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- circuit board
- printed circuit
- transformer
- flat surface
- multilayer printed
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- Coils Or Transformers For Communication (AREA)
- Coils Of Transformers For General Uses (AREA)
Abstract
The invention relates to a mixed type planar transformer comprising at least two multilayer PC boards, a ferrite and insulated wires; the multilayer PC boards are provided with conduction patterns serving as one part of winding of a transformer; and the gap between each two multilayer PC boards is provided with insulated wires serving as the other part of winding the transformer. The mixed type flat planar transformer of the invention can solve the problems that the planar transformer has high cost and complex process, and can not satisfy safety distance and the like.
Description
Technical field
The present invention relates to field of switch power, relate in particular to a kind of mixed type flat surface transformer that in Switching Power Supply, plays an important role.
Background technology
Transformer is to utilize the principle of electromagnetic induction to change the device of alternating voltage, and main member is primary coil, secondary coil and iron core (magnetic core).In electric equipment and radio-circuit, be commonly used for lifting voltage, matched impedance, safety isolation etc.And along with the progress of science and technology, the volume of transformer and profile change the comparatively small and exquisite flat surface transformer of volume also in continuous change into by the comparatively huge transformer of original volume.
And traditional flat surface transformer roughly can be divided into two classes: a class is to pile up with discrete parts to form.Typical structure is: be processed into special size and special shape with copper coin or Copper Foil, the discrete elements that then these is had special shape piles up according to certain requirement, and in order to constitute all windings of transformer, the heart adds a ferrite core therein at last.The shortcoming of this class flat surface transformer is: the cost height, and complex manufacturing technology is difficult for processing; And being PCB with one or many multilayers, makes another kind of traditional flat surface transformer, though the manufacture craft of this type of flat surface transformer is the first kind simple comparatively, but its shortcoming be can not satisfy between certain two conductive layer safe voltage and safe distance requirement, the fail safe during use is not very high.
Summary of the invention
The technical problem to be solved in the present invention is: propose that a kind of technology is simple, safety in utilization good, cost is low, be convenient to the mixed type flat surface transformer of automated production.
The technical solution adopted in the present invention is: a kind of mixed type flat surface transformer, comprise multilayer printed circuit board and ferrite, described multilayer printed circuit board is at least two, multilayer printed circuit board is provided with the conduction pattern that serves as transformer part winding, and described multilayer printed circuit board gap between any two is provided with the insulated wire that serves as another part winding of transformer.
Further, in order better to realize the electric connection between a plurality of multilayer printed circuit boards, the present invention includes and also be provided with the via hole that is used to place capillary on the described multilayer printed circuit board, conduction pattern in described via hole and the multilayer printed circuit board links, and multilayer printed circuit board is between any two by the electric connection of capillary.
Again further, in order better to realize winding configuration, the present invention comprises that also the number of plies of described multilayer circuit board is at least one deck, and each layer all is provided with the conduction pattern, order connection successively is identical around direction between the described conduction pattern, the conduction pattern electrical isolation that does not link.
Again further, in order not influence the power transmission of transformer, the present invention also comprises between described conduction pattern, insulated wire, the ferrite electrical isolation in twos.
Further, in order to increase high-tension bearing strength, the present invention comprises that again described insulated wire is triple insulating sleeve lines.
The invention has the beneficial effects as follows: a part of winding of transformer is set to the conduction pattern of printed circuit board, has so just solved problems such as conventional planar transformer cost height, complex process; Utilize triple insulating sleeve lines to make the winding of another part of transformer again, not only can bear high voltage like this, and solved the conventional planar transformer can not satisfy safe distance problem.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is the STRUCTURE DECOMPOSITION figure of the preferred embodiments of the present invention;
Fig. 2 is 6 layers of conduction pattern distribution schematic diagram of multilayer printed circuit board of the present invention;
Fig. 3 is an overall structure schematic diagram of the present invention;
Fig. 4 is the simplification circuit diagram of operation principle of the present invention;
Among the figure: 1, printed circuit board; 2, ferrite; 3, insulated wire; 4, insulating trip; 5, printed circuit board centre bore; 6, the projection at ferrite center; 7, ferritic arm; 8, pin; 9, via hole.
Embodiment
The present invention is further detailed explanation with preferred embodiment in conjunction with the accompanying drawings now.These accompanying drawings are the schematic diagram of simplification, basic structure of the present invention only is described in a schematic way, so it only show the formation relevant with the present invention.
As shown in Figure 1, a kind of mixed type flat surface transformer, comprise multilayer printed circuit board 1 and ferrite 2, described multilayer printed circuit board 1 is at least two, multilayer printed circuit board 1 is provided with the conduction pattern that serves as transformer part winding, and described multilayer printed circuit board 1 gap between any two is provided with the insulated wire 3 that serves as another part winding of transformer.
Overall structure schematic diagram of the present invention as shown in Figure 3.
The number of plies of multilayer circuit board of the present invention 1 and for example shown in Figure 2 is 6 layers, and each layer all is provided with the conduction pattern, and order connection successively is identical around direction between the described conduction pattern, the conduction pattern electrical isolation that does not link.Every layer also is provided with the via hole 9 that is used to place capillary 8 on the multilayer printed circuit board 1, and every layer conduction pattern links in every layer of described via hole 9 and the multilayer printed circuit board 1.Multilayer printed circuit board 1 is between any two by capillary 8 electric connections.The present invention has generated desired conduction pattern on described 6 layers of printed circuit board 1, these conduction patterns have the desired number of turn and sectional area, and they have just constituted the elementary winding of flat surface transformer like this.Secondary winding of the present invention and auxiliary winding are made of insulated wire, and described insulated wire adopts can bear high-tension triple insulating sleeve line.Among Fig. 1, two 6 layers of printed circuit boards 1 are connected with two ferrites 2 by two circular circular hole insulating trips 4, described printed circuit board 1 has centre bore 5, ferrite 2 centers have projection 6, coaxial and big or small the matching of circular hole three of the projection 6 at described ferrite center, the centre bore of printed circuit board 1 and circular circular hole insulating trip 4, ferrite 2 is pushed the centre bore of printed circuit board 1 from two of printed circuit board 1 relative directions, make the end surfaces of two arms 7 of ferrite 2 closely connect.Overall structure schematic diagram of the present invention as shown in Figure 3.
Operation principle of the present invention has been used Faraday's electromagnetic induction law, Lenz's law and circuital law.
Utilize the present invention that the anti-course of work that swashs power supply is described below, and by Fig. 4 simplified illustration: the conduction pattern on the printed circuit board is defined as elementary winding, insulated wire is defined as secondary winding and auxiliary winding, coil AB is called elementary winding among Fig. 4, coil CD is called auxiliary winding, and coil EF is called secondary winding.When the A point was connected to the electric current increase of positive voltage and inflow, according to Lenz's law, ends of the same name all in the circuit were positive pole, and simultaneously, C point and F point are negative pole.At this moment, not conducting of diode, the energy of inflow transformer is stored with the form of magnetic energy, when the electric current of A point inflow reduces, according to Faraday's electromagnetic induction law, end polarity inversion of the same name, induced current flows to the F point from the E point, diode current flow, transformer outwards provide energy, and the magnetic energy of storage changes into electric energy.Certainly, utilize the present invention also can realize the course of work of other a series of power supplys, also just do not make explanation one by one here.
According to other embodiments of the invention, in the mixed type flat surface transformer described in the invention, conduction pattern and insulated wire are selected arbitrarily as the winding of which part separately.
With above-mentioned foundation desirable embodiment of the present invention is enlightenment, and by above-mentioned description, the related work personnel can carry out various change and modification fully in the scope that does not depart from this invention technological thought.
Claims (5)
1. mixed type flat surface transformer, comprise multilayer printed circuit board (1) and ferrite (2), it is characterized in that: described multilayer printed circuit board (1) is at least two, multilayer printed circuit board (1) is provided with the conduction pattern that serves as transformer part winding, and described multilayer printed circuit board (1) gap between any two is provided with the insulated wire (3) that serves as another part winding of transformer.
2. mixed type flat surface transformer as claimed in claim 1, it is characterized in that: also be provided with the via hole (9) that is used to place capillary (8) on the described multilayer printed circuit board (1), conduction pattern in described via hole (9) and the multilayer printed circuit board (1) links, and multilayer printed circuit board (1) is between any two by the electric connection of capillary (8).
3. mixed type flat surface transformer as claimed in claim 1, it is characterized in that: the number of plies of described multilayer circuit board (1) is at least one deck, and each layer all is provided with the conduction pattern, order connection successively between the described conduction pattern, identical around direction, as not link conduction pattern electrical isolation.
4. mixed type flat surface transformer as claimed in claim 1 is characterized in that: electrical isolation in twos between described conduction pattern, insulated wire (3), the ferrite (2).
5. mixed type flat surface transformer as claimed in claim 1 is characterized in that: described insulated wire (3) is triple insulating sleeve lines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010003027A CN101728072A (en) | 2010-01-01 | 2010-01-01 | Mixed type flat surface transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010003027A CN101728072A (en) | 2010-01-01 | 2010-01-01 | Mixed type flat surface transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101728072A true CN101728072A (en) | 2010-06-09 |
Family
ID=42448790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010003027A Pending CN101728072A (en) | 2010-01-01 | 2010-01-01 | Mixed type flat surface transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101728072A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111596112A (en) * | 2019-09-11 | 2020-08-28 | 青岛鼎信通讯股份有限公司 | Magnetic isolator applied to terminal and ammeter products |
-
2010
- 2010-01-01 CN CN201010003027A patent/CN101728072A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111596112A (en) * | 2019-09-11 | 2020-08-28 | 青岛鼎信通讯股份有限公司 | Magnetic isolator applied to terminal and ammeter products |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100609 |