CN106409480A - Rounding type planar transformer and manufacturing method thereof - Google Patents
Rounding type planar transformer and manufacturing method thereof Download PDFInfo
- Publication number
- CN106409480A CN106409480A CN201610972820.6A CN201610972820A CN106409480A CN 106409480 A CN106409480 A CN 106409480A CN 201610972820 A CN201610972820 A CN 201610972820A CN 106409480 A CN106409480 A CN 106409480A
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- plate body
- winding
- flat surface
- pcb
- assembly
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Classifications
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- 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
- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
- H01F27/26—Fastening parts of the core together; Fastening or mounting the core on casing or support
- H01F27/263—Fastening parts of the core together
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
- H01F41/041—Printed circuit coils
-
- 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
- H01F2027/2819—Planar transformers with printed windings, e.g. surrounded by two cores and to be mounted on printed circuit
Abstract
The invention discloses a rounding type planar transformer. The rounding type planar transformer comprises a magnetic core component and a winding component, wherein the winding component is composed of a PCB winding plate body which is winded to be columnar and a sandwich plate body which is embedded into the PCB winding plate body to form an integral whole, the middle part of the coiling winding component is provided with a through hole, a magnetic core penetrates through the through hole and fits with the through hole, and the magnetic hole and the winding component constitute an integral planar transformer. According to the rounding type planar transformer, a primary winding plate body and a secondary winding pate body are all winded by a PCB circuit board to be cylindrical, wherein the primary winding coil is embedded inside the secondary winding coil to ensure that the primary winding coil and the secondary winding coil are closely combined, so that the watt density of the planar transformer reaches to the maximization and the planar transformer has very low leakage inductance and eddy-current loss. A very weak capacitive effect exists between the primary winding coil and the secondary winding coil, thus the electromagnetic interference is reduced and then the integral quality of the planar transformer is improved.
Description
Technical field
The invention belongs to planar transformer technology field, more particularly, to a kind of circulating type flat surface transformer and its manufacturer
Method.
Background technology
In order to adapt to the requirement of energy-conservation and environmental protection, microelectronic circuit is currently in use increasingly lower operating voltage, to require
In circuit, the energy of loss is fewer and feweri.The lower supply voltage of current this court and smaller transformation promptly change
Become supply and the packing technique of power supply.On the other hand, because direct-current switch power supply is towards compact development, with power
Semiconductor and signal semiconductor devices become less and less, how to reduce the work(due to playing the part of pivotal player in power system
Rate magnetic device appearance and size becomes most important.Because the miniaturization of power transformer and inductor is maximum difficult point, one
All it has been subject to the common concern of domestic and international brainstrust since straight.
Flat surface transformer is a kind of new ferrite inductance element, because flat surface transformer is suitable for plane attachment, is electronics
Product realizes the major product of frivolous miniaturization.Compared with conventional transformer, flat surface transformer not only has the advantage in structure,
But also have that power density height, efficiency high, the low, thermal diffusivity of electric leakage be good and low cost and other advantages.With electronic technology not
Disconnected development, the application of flat surface transformer is rapidly spread to notebook computer, automotive electronics, medical treatment from single communication field
Electronics, security system, Industry Control, digital camera, digital to television, frequency converter, inverter, various AC/DC, DC/DC conversion
The multiple fields such as device and military radar.
With traditional transformer using copper conductor as winding coil compared with, due to flat surface transformer winding coil adopt
Be that double-layer printing circuit board or the copper coin being prefabricated into plane are constituted, the exploitation as well as planar magnetic core obtains successfully,
Thus the design of transformer of planarization is achieved.While power density is greatly enhanced, volume but greatly reduces,
It is only equivalent to the 20% of conventional transformer, so the thickness of flat surface transformer is far below traditional transformer, be only equivalent to it
20% to 40% height.Due to the various clear superiorities of flat surface transformer, traditional skeleton change is replaced using flat surface transformer
Depressor is one of development trend of current switch power supply.
Existing flat surface transformer (especially high current, high power occasion), mostly using copper sheet as former/vice-side winding,
Multiple this windings are stacked, then form transformer together with magnetic core.Because current flat surface transformer structure sets
Meter is complex, is not often to fit completely, leads to the power density of flat surface transformer can not reach maximization between plate,
Create larger leakage inductance and eddy-current loss, the plate being simultaneously superimposed has apparent capacitive effect, easily produce electromagnetism and do
Disturb, so affect flat surface transformer total quality, and range of application narrower it is impossible to widely carry out popularization use, have impact on
The popularization and application of flat surface transformer.
Content of the invention
In order to solve above-mentioned technical problem, the present invention provides a kind of circulating type flat surface transformer, including core assembly and volume
Around winding assembly, offer through hole in the mid portion of winding winding assembly, magnetic core runs through bonded to each other after through hole, and with winding
Winding assembly constitutes complete flat surface transformer；A kind of circulating type flat surface transformer of the present invention, armature winding plate body and secondary around
Group plate body is wound into column by PCB, primary winding coil be embedded in secondary winding coil internal it is ensured that primary around
Group coil is combined closely so that the power density of flat surface transformer reaches maximization with secondary winding coil, and has very low
Leakage inductance and eddy-current loss, have very weak capacitive effect between primary winding coil and secondary winding coil, reduce electromagnetism and do
Disturb, and then improve the total quality of flat surface transformer.
The present invention solves technical problem, be employed technical scheme comprise that：A kind of circulating type flat surface transformer, including magnetic core group
Part and winding winding assembly, described core assembly is in round pie, is made up of the magnetic core that a pair can mutually correspond to laminating, described magnetic
The stem stem that core includes the core body in bottle cap shape and is arranged on core body central authorities；The laminating type of the magnetic core of two mutually corresponding laminatings is adopted
With gluing, it is adhesively fixed by bonding agent；
Described winding winding assembly, by being wound as circular PCB winding plate body and be embedded in PCB winding plate body
Interlayer plate body is constituted, and offers through hole in the core of winding winding assembly, the stem stem of two pieces of magnetic cores extends through from two ends
Bonded to each other after through hole in the middle of winding winding assembly；
Described PCB winding plate body is made up of the armature winding plate body being placed in inner ring and the secondary windings plate body being placed in outer ring,
Described interlayer plate body has polylith, is separately positioned between armature winding plate body and secondary windings plate body, and PCB winding plate body with
Between core assembly.
Further, described armature winding plate body is wound by the printed circuit board (PCB) being provided with primary winding coil and forms, described
Secondary windings plate body is wound by the printed circuit board (PCB) being provided with secondary winding coil and forms, and described interlayer plate body is by having insulating properties
Sandwich plate winding form.
Preferably, described armature winding plate body passes through winding and forms column, and the axis of armature winding plate body forms one
Run through the through hole of column, the shape of stem stem of this through hole and magnetic core and matching size, stem stem can be completely through armature winding plate
Through hole in the middle part of body.
Above-mentioned circulating type flat surface transformer, described winding winding assembly is from inside to outside successively by armature winding plate body, interlayer
Plate body, secondary windings plate body and interlayer plate body composition.
Above-mentioned circulating type flat surface transformer, described armature winding plate body and secondary windings plate body is equipped with circle around copper electricity
Road, described circle is all provided with having point of contact around the initial and tail sections of copper circuit, and described contact point passes through wire or conductor draws PCB winding plate
Body, the exit of contact point is as the terminals of flat surface transformer.
Further, described interlayer plate body is for deadening between armature winding plate body and secondary windings plate body, and PCB
Insulation board between winding plate body and core assembly.
Preferably, the material of above-mentioned interlayer plate body adopts insulation resin sheet material.
Further, the joint of described PCB winding plate body is provided with two leads, and two leads draw respectively at two ends
Go out；A lead is also respectively drawn at the two ends of described armature winding plate body, and two leads constitute primary return with armature winding plate body；
A lead is also respectively drawn at the two ends of described secondary windings plate body, and two leads constitute secondary loop with secondary windings plate body.
Process the manufacture method of above-mentioned circulating type flat surface transformer, comprise the steps：
S1：Processing and fabricating constitutes core assembly and each parts of winding winding assembly；
S2：The sandwich plate and PCB winding plate body constituting winding winding assembly is wound being molded；
S3：Embedded assembling is carried out to armature winding plate body, interlayer plate body and the secondary windings plate body being wound into column,
Constitute complete winding winding assembly；
S4：The core assembly machining and the winding winding assembly being completed are carried out technique assembling, constitutes complete
Flat surface transformer；
S5：The flat surface transformer being completed is carried out test adjustment, described test adjustment content works for transformer and imitates
Rate, leakage inductance, heat transfer, operating frequency, operating temperature and insulating properties, wherein operating efficiency reach 99%, leakage inductance and are less than
0.1%th, operating frequency 50 KHz to 20 megahertzs, operating temperature -60 be dielectrically separated to 150 DEG C and 10000V, debugging completes
Packaging and storage.
Further, in above-mentioned steps S2, first armature winding plate body is wound be molded, then primary around
Carry out the coiling and molding of interlayer plate body on the basis of group plate body again, on the basis of interlayer plate body, finally carry out secondary windings plate body
Coiling and molding.
Compared with prior art, the present invention has the advantages that：A kind of circulating type plane transformation proposed by the present invention
Device, its armature winding plate body and secondary windings plate body are wound into column by PCB, and primary winding coil is embedded in secondary
Level winding coil is internal it is ensured that primary winding coil and secondary winding coil are combined closely so that the power of flat surface transformer
Density reaches maximization, has very low leakage inductance and eddy-current loss, has very between primary winding coil and secondary winding coil
Weak capacitive effect, reduces electromagnetic interference, and then improves the total quality of flat surface transformer, meanwhile, this flat surface transformer
There is small volume and highly low, substantially increase application scenario and the popularization scope of flat surface transformer.
Brief description
Fig. 1 is the schematic, exploded perspective view illustrating transformer according to an exemplary embodiment of the present invention；
Fig. 2 is the schematic side elevation illustrating transformer according to an exemplary embodiment of the present invention；
Fig. 3 is the PCB winding plate unfolding assumption diagram illustrating transformer according to an exemplary embodiment of the present invention；
Fig. 4 is to illustrate transformer manufacturing method flow diagram according to an exemplary embodiment of the present invention.
In figure：1st, core assembly, 2, winding winding assembly, 3, PCB winding plate body, 4, interlayer plate body, 5, through hole, 6, primary
Winding plate body, 7, secondary windings plate body, 8, core body, 9, stem stem, 10, circle around copper circuit, 11, lead.
Specific 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 description is it is clear that described embodiment is only a part of embodiment of the present 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 not making creative work
Embodiment, broadly falls into the scope of protection of the invention.
Refer to Fig. 1 to Fig. 3, the present invention provides a kind of technical scheme of circulating type flat surface transformer, this circulating type plane
Transformer includes core assembly 1 and winding winding assembly 2；Core assembly 1 is in round pie, can mutually correspond to laminating by a pair
Magnetic core is constituted, and described magnetic core includes core body 8 and the cylindrical stem stem 9 being arranged on core body 8 central authorities in bottle cap shape；Two phases
Mutually the laminating type of the magnetic core of corresponding laminating adopts gluing, and on the relative face of magnetic core stem stem 9, uniform coating film bonding agent, passes through
Bonding agent is adhesively fixed, and laminating type can also select outer wrapping formula, and the magnetic core that outside support fixation is is bonded to each other, outward
The fixing preferred non-metallic material of support in portion, forms the complete magnetic core stem stem 9 of flat surface transformer.
Winding winding assembly 2 is by being wound as circular PCB winding plate body 3 and be embedded in the folder in PCB winding plate body 3
Laminate body 4 is constituted, and offers through hole 5 in the core of winding winding assembly 2, the stem stem 9 of two pieces of magnetic cores passes through respectively from two ends
Wear bonded to each other after the through hole 5 in the middle of winding winding assembly 2；And constitute complete flat surface transformer with winding winding assembly 2；PCB
Winding plate body 3 is wound as column by up- coiler, and up- coiler, when being wound PCB winding plate body 3 for column, needs
Diaphragm is installed on the plate face of PCB winding plate body 3 additional, diaphragm is used for protecting circuit and the device on PCB winding plate body 3 surface
Part, PCB winding plate body 3 two ends being wound as column form a joint (the pillared connecting sewing of structure), PCB winding plate body
3 joint is provided with two leads 11, and two leads 11 are drawn respectively at two ends, and the two ends of armature winding plate body 6 are respectively drawn
A piece lead 11, two leads 11 constitute primary return with armature winding plate body 6, and the two ends of secondary windings plate body 7 are each to draw one
Root lead 11, two leads 11 constitute secondary loop with secondary windings plate body 7.
PCB winding plate body 3 is made up of the armature winding plate body 6 being placed in inner ring and the secondary windings plate body 7 being placed in outer ring, institute
Stating interlayer plate body 4 has polylith, and described interlayer plate body 4 is insulation insulating course, is separately positioned on armature winding plate body 6 and secondary windings
Between plate body 7, and between PCB winding plate body 3 and core assembly 1.Armature winding plate body 6, secondary windings plate body 7 and sandwich plate
Body 4 constitutes column winding winding assembly 2, and interlayer plate body 4 is wound into column, the body of interlayer plate body 4 also by up- coiler
The long-pending size according to PCB winding plate body 3 selects.
Flat surface transformer typically adopts undersized E type, RM type or ring-like FERRITE CORE, typically by high frequency power iron
Ferrite is made, and has relatively low core loss in high frequency.In the present embodiment, preferably use ring type magnetic core, preferably
The height of magnetic core is 0.5cm-5cm, and preferred core diameter is 1cm-10cm, two part assembling synthesis up and down of ring type magnetic core
When, the winding winding assembly 2 of inside can be coated completely.
In the present embodiment, described armature winding plate body 6 is by the printed circuit board (PCB) winding being provided with primary winding coil
Become, described secondary windings plate body 7 is wound by the printed circuit board (PCB) being provided with secondary winding coil and forms, and described interlayer plate body 4 is by having
The sandwich plate having insulating properties winds and forms.Described primary winding coil is that printing circuit on circuit boards is constituted, this coil
Circle that is parallel for many and being spaced is constituted around copper circuit 10, the wiring form phase of described secondary winding coil and primary winding coil
With, but line weight between copper circuit 10 for the circle and line density are determined according to the no-load voltage ratio of flat surface transformer, referring particularly to
Fig. 3.
Described armature winding plate body 6 passes through winding and forms column, and the axis of armature winding plate body 6 forms one and runs through post
The through hole 5 of shape body, the shape of stem stem 9 of this through hole 5 and magnetic core and matching size, stem stem 9 can be completely through armature winding plate body 6
The through hole 5 at middle part.
In the present embodiment, described winding winding assembly 2 is from inside to outside successively by armature winding plate body 6, interlayer plate body
4th, secondary windings plate body 7 and interlayer plate body 4 form.Described armature winding plate body 6 and secondary windings plate body 7 are equipped with circle around copper electricity
Road 10, circle is provided with contact point around the initial and tail sections of copper circuit 10, and described contact point passes through wire or conductor draws PCB winding plate body 3,
The exit of contact point is as the terminals of flat surface transformer.
Described interlayer plate body 4 is for deadening between armature winding plate body 6 and secondary windings plate body 7, and PCB winding plate
Insulation board between body 3 and core assembly 1, and the material of preferably this insulation board is insulation resin sheet material.
PCB winding plate body 3 can save winding skeleton, energy increasing heat radiation area, and coil is to be directly printed on pcb board, and
Unconventional wire coiling, can reduce the eddy-current loss caused by kelvin effect and kindred effect in high-frequency work, also can
Increase current density, its current density reaches as high as 40A/mm2, power is big, process is simple, has preferable window using PCB
Utilization rate, up to 0.4～0.5, and has the advantages that small volume；PCB its power of type transformer may be up to 40kW, and frequency is up to million
The conspicuous order of magnitude；Using high-precision planar technique, it is clipped between magnetic core after multi-layer PCB winding, thin and efficient ferrite plane becomes
Depressor, highly up to 10～20mm, operating frequency is 500～1000kHz, and operating temperature is -400～1300 DEG C.
Refer to Fig. 4, the manufacture method of processing circulating type flat surface transformer, comprise the steps：
S1：Processing and fabricating constitutes core assembly 1 and all parts of winding winding assembly 2；
S2：The sandwich plate 4 and PCB winding plate body 3 constituting winding winding assembly 2 is wound being molded；
S3：Embedded group is carried out to armature winding plate body 6, interlayer plate body 4 and the secondary windings plate body 7 being wound into column
Dress, constitutes complete winding winding assembly 2；
S4：The core assembly machining 1 is carried out technique assembling with the winding winding assembly 2 being completed, has constituted
Whole flat surface transformer；
S5：The flat surface transformer being completed is carried out test adjustment, described test adjustment content works for transformer and imitates
Rate, leakage inductance, heat transfer, operating frequency, operating temperature and insulating properties, wherein operating efficiency reach 99%, leakage inductance and are less than
0.1%th, heat transfer is good, operating frequency 50 KHz to 20 megahertzs, operating temperature -60 to 150 DEG C and 10000V insulate every
From debugging completes packaging and storage.
Wherein, in above-mentioned steps S2, armature winding plate body 6 is wound being molded, then in armature winding plate first
Carry out the coiling and molding of interlayer plate body 4 on the basis of body 6 again, on the basis of interlayer plate body 4, finally carry out secondary windings plate body 7
Coiling and molding.
In sum, a kind of circulating type flat surface transformer proposed by the present invention, armature winding plate body 6 and secondary windings plate body
7 are wound into column by PCB, primary winding coil be embedded in secondary winding coil internal it is ensured that armature winding
Coil and secondary winding coil are combined closely so that the power density of flat surface transformer reaches maximization, have very low leakage inductance
And eddy-current loss, there is between primary winding coil and secondary winding coil very weak capacitive effect, reduce electromagnetic interference, enter
And improve the total quality of flat surface transformer, meanwhile, this flat surface transformer has the advantages that small volume and highly low, significantly carries
The high application scenario of flat surface transformer and popularization scope.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, permissible
Understand and can carry out multiple changes, modification, replacement to these embodiments without departing from the principles and spirit of the present invention
And modification, the scope of the present invention be defined by the appended.
Claims (8)
1. a kind of circulating type flat surface transformer, including core assembly (1) and winding winding assembly (2) it is characterised in that：
Described core assembly (1) is in round pie, is made up of the magnetic core that a pair can mutually correspond to laminating, described magnetic core is included in bottle
The core body (8) of lid and the stem stem (9) being arranged on core body (8) central authorities；The laminating type of the magnetic core of two mutually corresponding laminatings is adopted
With gluing, it is adhesively fixed by bonding agent；
Described winding winding assembly (2), by being wound as circular PCB winding plate body (3) and be embedded in PCB winding plate body
(3) the interlayer plate body (4) in is constituted, and offers through hole (5), the core of two pieces of magnetic cores in the core of winding winding assembly (2)
It is bonded to each other afterwards that post (9) extends through the middle through hole (5) of winding winding assembly (2) from two ends；
Described PCB winding plate body (3) is by being placed in the armature winding plate body (6) of inner ring and be placed in the secondary windings plate body (7) of outer ring
Composition, described interlayer plate body (4) has polylith, is separately positioned between armature winding plate body (6) and secondary windings plate body (7), with
And between PCB winding plate body (3) and core assembly (1)；
Described armature winding plate body (6) is passed through winding and is formed column, and the axis of armature winding plate body (6) forms one and runs through post
The shape of stem stem (9) of the through hole (5) of shape body, this through hole (5) and magnetic core and matching size, stem stem (9) can be completely through primary
Through hole (5) in the middle part of winding plate body (6)；
Circle is equipped with described armature winding plate body (6) and secondary windings plate body (7) around copper circuit (10), described circle is around copper circuit
(10) initial and tail sections are all provided with having point of contact, and described contact point passes through wire or conductor draws PCB winding plate body (3), contact point
Exit is as the terminals of flat surface transformer.
2. a kind of circulating type flat surface transformer according to claim 1 it is characterised in that：Described armature winding plate body (6)
Wound by the printed circuit board (PCB) being provided with primary winding coil and form, described secondary windings plate body (7) is by being provided with secondary winding coil
Printed circuit board (PCB) winding form, described interlayer plate body (4) by have insulating properties sandwich plate wind form.
3. a kind of circulating type flat surface transformer according to claim 1 it is characterised in that：Described winding winding assembly (2)
From inside to outside it is made up of armature winding plate body (6), interlayer plate body (4), secondary windings plate body (7) and interlayer plate body (4) successively.
4. a kind of circulating type flat surface transformer according to claim 1 it is characterised in that：Described interlayer plate body (4) is use
In deadening between armature winding plate body (6) and secondary windings plate body (7), and PCB winding plate body (3) and core assembly (1) it
Between insulation board.
5. a kind of circulating type flat surface transformer according to claim 4 it is characterised in that：The material of described interlayer plate body (4)
Matter adopts insulation resin sheet material.
6. a kind of circulating type flat surface transformer according to claim 1 it is characterised in that：Described PCB winding plate body (3)
Joint is provided with two leads (11), and two leads (11) are drawn respectively at two ends；The two ends of described armature winding plate body (6)
Also respectively draw a lead (11), two leads (11) constitute primary return with armature winding plate body (6)；Described secondary windings plate
A lead (11) is also respectively drawn at the two ends of body (7), and two leads (11) constitute secondary loop with secondary windings plate body (7).
7. the circulating type flat surface transformer any one of Claims 1-4 manufacture method it is characterised in that include as
Lower step：
S1：Processing and fabricating constitutes core assembly (1) and all parts of winding winding assembly (2)；
S2：The sandwich plate (4) and PCB winding plate body (3) constituting winding winding assembly (2) is wound being molded；
S3：Armature winding plate body (6), interlayer plate body (4) and the secondary windings plate body (7) being wound into column is carried out embedded
Assembling, constitutes complete winding winding assembly (2)；
S4：By the core assembly machining (1) with the winding winding assembly (2) that is completed carries out technique assembling, constitute
Whole flat surface transformer；
S5：The flat surface transformer being completed is carried out test adjustment, described test adjustment content is transformer operating efficiency, leakage
Sense, heat transfer, operating frequency, operating temperature and insulating properties, wherein operating efficiency reach 99%, leakage inductance and are less than 0.1%, work
Frequency 50 KHz to 20 megahertzs, operating temperature -60 be dielectrically separated to 150 DEG C and 10000V, debugging complete packaging and storage.
8. a kind of circulating type flat surface transformer according to claim 7 manufacture method it is characterised in that：In step S2
In, armature winding plate body (6) is wound being molded first, on the basis of armature winding plate body (6), then carries out interlayer again
The coiling and molding of plate body (4), finally carries out the coiling and molding of secondary windings plate body (7) on the basis of interlayer plate body (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610972820.6A CN106409480A (en) | 2016-11-07 | 2016-11-07 | Rounding type planar transformer and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610972820.6A CN106409480A (en) | 2016-11-07 | 2016-11-07 | Rounding type planar transformer and manufacturing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106409480A true CN106409480A (en) | 2017-02-15 |
Family
ID=58014687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610972820.6A Pending CN106409480A (en) | 2016-11-07 | 2016-11-07 | Rounding type planar transformer and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106409480A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110556234A (en) * | 2018-05-31 | 2019-12-10 | 东莞劲华电子有限公司 | Transformer with winding structure |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07320961A (en) * | 1994-05-24 | 1995-12-08 | Tdk Corp | Surface-mounting type transformer |
| CN201893229U (en) * | 2010-09-21 | 2011-07-06 | 成翔电子(东莞)有限公司 | Sleeve type transformer |
| CN202771938U (en) * | 2012-07-24 | 2013-03-06 | 昆山禾旺电子有限公司 | SMD (surface mounted device) transformer |
| CN205542318U (en) * | 2016-03-25 | 2016-08-31 | 上海联影医疗科技有限公司 | Transformer winding and transformer based on flexible circuit board |
-
2016
- 2016-11-07 CN CN201610972820.6A patent/CN106409480A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07320961A (en) * | 1994-05-24 | 1995-12-08 | Tdk Corp | Surface-mounting type transformer |
| CN201893229U (en) * | 2010-09-21 | 2011-07-06 | 成翔电子(东莞)有限公司 | Sleeve type transformer |
| CN202771938U (en) * | 2012-07-24 | 2013-03-06 | 昆山禾旺电子有限公司 | SMD (surface mounted device) transformer |
| CN205542318U (en) * | 2016-03-25 | 2016-08-31 | 上海联影医疗科技有限公司 | Transformer winding and transformer based on flexible circuit board |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110556234A (en) * | 2018-05-31 | 2019-12-10 | 东莞劲华电子有限公司 | Transformer with winding structure |
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Application publication date: 20170215 |