CN106373733B - A kind of adjustable flat surface transformer and its manufacture method - Google Patents
A kind of adjustable flat surface transformer and its manufacture method Download PDFInfo
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- CN106373733B CN106373733B CN201610931820.1A CN201610931820A CN106373733B CN 106373733 B CN106373733 B CN 106373733B CN 201610931820 A CN201610931820 A CN 201610931820A CN 106373733 B CN106373733 B CN 106373733B
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 16
- 238000004804 winding Methods 0.000 claims abstract description 112
- 239000011889 copper foil Substances 0.000 claims abstract description 60
- 230000000875 corresponding Effects 0.000 claims abstract description 15
- RYGMFSIKBFXOCR-UHFFFAOYSA-N copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910052802 copper Inorganic materials 0.000 claims abstract description 14
- 239000010949 copper Substances 0.000 claims abstract description 14
- 210000003127 Knee Anatomy 0.000 claims description 12
- 238000005516 engineering process Methods 0.000 claims description 10
- 238000007639 printing Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 6
- 238000009413 insulation Methods 0.000 claims description 5
- 239000004020 conductor Substances 0.000 claims description 4
- 239000000077 insect repellent Substances 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 3
- 238000004806 packaging method and process Methods 0.000 claims description 2
- 238000003860 storage Methods 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 abstract description 2
- 239000008358 core component Substances 0.000 abstract description 2
- 238000005755 formation reaction Methods 0.000 abstract description 2
- 239000007787 solid Substances 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 4
- 229910000529 magnetic ferrite Inorganic materials 0.000 description 4
- 229910000859 α-Fe Inorganic materials 0.000 description 4
- 210000002356 Skeleton Anatomy 0.000 description 2
- 239000000306 component Substances 0.000 description 2
- 230000000994 depressed Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006011 modification reaction Methods 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 230000001131 transforming Effects 0.000 description 2
- 239000007767 bonding agent Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000004377 microelectronic Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
Classifications
-
- 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
-
- 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
- H01F27/2847—Sheets; Strips
- H01F27/2852—Construction of conductive connections, of leads
-
- 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
-
- 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
-
- 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
- H01F27/2847—Sheets; Strips
- H01F2027/2857—Coil formed from wound foil conductor
Abstract
The invention discloses a kind of adjustable flat surface transformer, including core assembly and winding assembly；Core assembly is a pair of magnetic cores that there is mutually corresponding fitting to form a solid core component；Winding assembly is integral by PCB windings plate, sandwich plate and guide plate stacking, and the center section of winding assembly offers through hole, and magnetic core is bonded to each other through through hole, and forms complete flat surface transformer with winding assembly.Adjustable flat surface transformer proposed by the present invention, one layer of guide plate is covered on traditional PCB winding plates, the guide plate is provided with copper foil salient point, copper foil salient point contacts with the copper circuit fitting on PCB winding plates, change the turn ratio of flat surface transformer using the winding number of rings of copper foil salient point formation, so as to change the no-load voltage ratio of flat surface transformer, simultaneously, produce the flat surface transformer of this kind of adjustable no-load voltage ratio, a guide plate is only added during primary plane transformer production, and the guide plate improves on the basis of PCB printed panels.
Description
Technical field
The invention belongs to planar transformer technology field, more particularly to a kind of adjustable flat surface transformer and its manufacturer
Method.
Background technology
In order to adapt to the requirement of energy-conservation and environmental protection, increasingly lower operating voltage is used in microelectronic circuit, to require
The energy being lost in circuit is fewer and fewer.The current lower supply voltage of this court and smaller transformation promptly changes
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 by the common concern of domestic and international brainstrust since straight.
Flat surface transformer is a kind of new ferrite inductance element, is electronics because flat surface transformer is suitable for plane attachment
Product realizes the major product of frivolous miniaturization.Compared with the transformer of routine, flat surface transformer not only has the advantage in structure,
But also with power density height, efficiency high, the low, thermal diffusivity of leaking electricity is good and low cost and other advantages.With electronic technology not
Disconnected development, the application of flat surface transformer are 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.
Compared with traditional transformer uses copper conductor as winding coil, because the winding coil of flat surface transformer uses
Be double-layer printing circuit board or be prefabricated into the copper coin of plane and form, the exploitation as well as planar magnetic core obtains success,
So as to which the design of transformer of planarization is achieved.While power density is greatly enhanced, volume but greatly reduces,
The 20% of conventional transformer is only equivalent to, so the thickness of flat surface transformer is far below traditional transformer, is only equivalent to it
20% to 40% height.Due to the various clear superiorities of flat surface transformer, the skeleton change of tradition 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 original/vice-side winding,
Multiple this windings are stacked, transformer is then formed together with magnetic core.Because current flat surface transformer structure is set
Count complex, and flat surface transformer forms fixation in structure, and therefore, existing plane no-load voltage ratio is fixed, and it is many should
It is required to flexibly be used using the no-load voltage ratio of transformer with occasion, only with current fixation no-load voltage ratio flat surface transformer, more
Use cost height is changed, changes be required to pay man power and material every time, under this application environment, the versatility of flat surface transformer
Difference, application are narrower, it is impossible to widely carry out popularization use, constrain the popularization and application of flat surface transformer.
The content of the invention
In order to solve the above-mentioned technical problem, the present invention provides a kind of adjustable flat surface transformer, including core assembly and around
Group component；Core assembly is a pair of magnetic cores that there is mutually corresponding fitting to form a solid core component；Winding assembly is by PCB
Winding plate, sandwich plate and guide plate stacking are integral, and the center section of winding assembly offers through hole, and magnetic core runs through through hole phase
Mutually fitting, and form complete flat surface transformer with winding assembly.Adjustable flat surface transformer proposed by the present invention, traditional
One layer of guide plate is covered on PCB winding plates, the guide plate is provided with copper foil salient point, copper foil salient point and the copper electricity on PCB winding plates
Road fitting contact, changes the turn ratio of flat surface transformer using the winding number of rings of copper foil salient point formation, becomes so as to change plane
The no-load voltage ratio of depressor, meanwhile, the flat surface transformer of this kind of adjustable no-load voltage ratio is produced, is only added during primary plane transformer production
One guide plate, and the guide plate improves on the basis of PCB printed panels.
The present invention solves technical problem, and used technical scheme is：A kind of adjustable flat surface transformer, including magnetic core group
Part and winding assembly, the magnetic core that the core assembly can mutually correspond to fitting by a pair are formed, and the magnetic core includes bottom plate, set
Put the stem in portion in the soleplate and be arranged on the crossbeam of bottom plate both sides；Winding assembly is by PCB windings plate, sandwich plate and guiding sheetpile
Build up as an entirety, be laid with PCB winding plates in the circle around shape around copper foil circuit, in the center section of winding assembly
Offer through hole, be bonded to each other after the through hole that the stems of two pieces of magnetic cores is extended through among winding assembly from both ends；
The PCB windings plate includes armature winding plate and secondary windings plate, and the sandwich plate shares polylith, is separately positioned on
Between armature winding plate and secondary windings plate, and between core assembly and winding assembly；
The guide plate shares polylith, the outside of armature winding plate and secondary windings plate is mounted on respectively, on guide plate
Provided with multiple copper foil salient points, the copper foil salient point electrically connects with the circle laid on PCB winding plates around copper foil circuit.
Further, the winding assembly is successively by sandwich plate, guide plate, armature winding plate, sandwich plate, secondary windings
Plate, guide plate and sandwich plate, which stack, to be formed.
Preferably, the circle is laid on armature winding plate and secondary windings plate around copper foil circuit insertion, in armature winding
The center section of plate and secondary windings plate offers a through hole, is offered on sandwich plate and guide plate relative with the through hole
The shape and size of the stem of the through hole answered, the through hole and magnetic core match, stem can completely through sandwich plate, guide plate, just
The through hole opened up in the middle part of level winding plate and secondary windings plate.
Further, the circle set on armature winding plate and secondary windings plate is provided with around the two ends of copper foil circuit
Contact point, the contact point draw PCB winding plates by wire or conductor, and the exit of the contact point is as flat surface transformer
Terminals.
Above-mentioned adjustable flat surface transformer, the sandwich plate be for separating armature winding plate and secondary windings plate, and
The insulation board of core assembly and winding assembly.
Above-mentioned adjustable flat surface transformer, multiple copper foil salient points on guide plate, it is every around copper foil circuit to be correspondingly arranged at circle
The knee of one ring, copper foil salient point are in close contact with circle around the knee of copper foil circuit.
Preferably, the guide plate is provided with terminals, and each copper foil salient point is corresponding to connect a terminals, and copper foil is convex
The corresponding terminals electrical connection of point.
The manufacture method of above-mentioned adjustable flat surface transformer, comprises the following steps：
S1：The all parts of processing and fabricating core assembly and winding assembly；
S2：Fitting assembling, structure are carried out to the sandwich plate in winding assembly, guide plate, armature winding plate and secondary windings plate
Into complete winding assembly；PCB windings plate carries out array loop circuit printing, the circuit shape of printing using circuit board printing technology
Shape is similar with the structure of coiled mosquito-repellent incense；It is when the PCB windings plate be bonded assembling with guide plate, the copper foil on guide plate is convex
Point with the knee of copper circuit on PCB winding plates is corresponding contacts connection, after the completion of PCB winding plates are bonded with guide plate, should carry out
Energizing test, next step assembling is carried out again after pass the test；
S3：The core assembly machined and the winding assembly being completed are subjected to technique assembling, formed complete flat
Face transformer；Core assembly is fixedly mounted on the outside of winding assembly, while core assembly has fixed work to winding assembly
With, when each half storey in winding assembly by be adhesively fixed connection after, core assembly further plays fixation to winding assembly
Effect；
S4：The flat surface transformer that is completed carries out test adjustment, the test adjustment content be transformer operating efficiency,
Leakage inductance, heat transfer, working frequency, operating temperature and insulating properties, wherein operating efficiency reach 99%, leakage inductance less than 0.1%, work
The KHz of working frequency 50 to 20 megahertzs, operating temperature -60 to 150 DEG C and 10000V is dielectrically separated from, and debugging completion is packaged into
Storehouse.
Further, when the armature winding plate and secondary windings plate be bonded assembling with guide plate, by guide plate
Copper foil salient point and the circle on armature winding plate and secondary windings plate contact connection around the knee of copper foil circuit is corresponding, it is primary around
Group plate and secondary windings plate carry out energizing test after the completion of being bonded with guide plate, and next step assembling is carried out again after pass the test.
Compared with prior art, the present invention has the advantages that：A kind of adjustable pitch plane transformation proposed by the present invention
Device, covers one layer of guide plate again on traditional PCB winding plates, and the guide plate is provided with substantial amounts of copper foil salient point, copper foil salient point with
Copper foil circuit fitting contact on PCB winding plates, using the winding number of rings of copper foil salient point everywhere, to change the circle of flat surface transformer
Number ratios, reach the no-load voltage ratio for changing flat surface transformer, meanwhile, the flat surface transformer of this kind of adjustable no-load voltage ratio is produced, only original
One piece of guide plate is added in the production process of flat surface transformer, and the guide plate improves on the basis of PCB printed panels, because
This, manufacturing process is simple, using minimum cost, produces the adjustable plane transformer of high performance-price ratio, substantially increases production
The level of technology and production technology.
Brief description of the drawings
Fig. 1 is the schematic, exploded perspective view for showing transformer according to an exemplary embodiment of the present invention；
Fig. 2 is the schematic side elevation for showing transformer according to an exemplary embodiment of the present invention；
Fig. 3 is the hardened composition of PCB windings for showing transformer according to an exemplary embodiment of the present invention；
Fig. 4 is the guide plate structure chart for showing transformer according to an exemplary embodiment of the present invention；
Fig. 5 is to show transformer manufacturing method flow diagram according to an exemplary embodiment of the present invention.
In figure：1st, core assembly, 2, winding assembly, 3, PCB winding plates, 4, sandwich plate, 5, guide plate, 6, through hole, 7, just
Level winding plate, 8, secondary windings plate, 9, copper foil salient point, 10, crossbeam, 11, stem, 12, circle around copper foil circuit, 13, terminals.
Embodiment
The present invention is described further below in conjunction with accompanying drawing：
Fig. 1 to Fig. 4 is referred to, the present invention provides a kind of adjustable flat surface transformer, including core assembly 1 and winding assembly
2, the magnetic core that core assembly 1 can mutually correspond to fitting by a pair is formed, and the magnetic core includes bottom plate, is arranged in the middle part of bottom plate
Stem 11 and the crossbeam 10 for being arranged on bottom plate both sides；Winding assembly 2 is stacked by PCB windings plate 3, sandwich plate 4 and guide plate 5 to be turned into
One entirety, it is laid with PCB windings plate 3 and is opened up in the circle around shape around copper foil circuit 12, the center section of winding assembly 2
There is a through hole 6, be bonded to each other after the through hole 6 that the stems 11 of two pieces of magnetic cores is extended through among winding assembly 2 from both ends；The PCB
Winding plate 3 includes armature winding plate 7 and secondary windings plate 8, and the sandwich plate 4 shares polylith, and sandwich plate 4 is insulation insulating course,
It is separately positioned between armature winding plate 7 and secondary windings plate 8, and between core assembly 1 and winding assembly 2；The guiding
Plate 5 shares polylith, is mounted on the outside of armature winding plate 7 and secondary windings plate 8 respectively, and multiple copper foils are provided with guide plate 5
Salient point 9, the copper foil salient point 9 electrically connect with the circle laid on PCB windings plate 3 around copper foil circuit 12.
Winding assembly 2 is successively by sandwich plate 4, guide plate 5, armature winding plate 7, sandwich plate 4, secondary windings plate 8, guide plate
5 and sandwich plate 4 stack and form, each plate body is overlapped mutually, is adhesively fixed by bonding agent, or is fixed by core assembly 1 folded
It is added together, winding plate is superimposed upon the magnetic loop that transformer is formed on the high-frequency core of plane, can meet the design of resonance circuit
It is required that and due to the good magnetic screen of magnetic core, Radio frequency interference can be suppressed.
The magnetic core of flat surface transformer uses E types, RM types or the ring-like FERRITE CORE of small size, excellent in the present embodiment
First use E-type magnetic core, the height of preferable magnetic core is 0.1cm-10cm, and preferable core length is 1cm-20cm, preferable magnetic
Core length is 1cm-15cm, is typically made up of high-frequency power ferrite material, there is relatively low core loss in high frequency.
In the present embodiment, enclose and be laid in around the insertion of copper foil circuit 12 on armature winding plate 7 and secondary windings plate 8,
The center section of armature winding plate 7 and secondary windings plate 8 offers a through hole 6, is opened up on sandwich plate 4 and guide plate 5
There is the through hole corresponding with the through hole 6, the shape and size of the through hole 6 and the stem 11 of magnetic core match, and stem 11 can be completely
The through hole 6 opened up through sandwich plate 4, guide plate 5, armature winding plate 7 and the middle part of secondary windings plate 8.
In the present embodiment, the armature winding plate 7 of composition PCB windings plate 3 and secondary windings plate 8 are using multi-sheet printed
Circuit board is repeatedly around into winding or copper sheet change and the magnetic loop of transformer formed on the high-frequency core of plane, and the design has
The low resistance of direct current copper, low leakage inductance and distribution capacity, the design requirement of resonance circuit can be met, and due to the good magnetic of magnetic core
Shielding, can suppress Radio frequency interference.
In the present embodiment, head and the tail of the circle set on armature winding plate 7 and secondary windings plate 8 around copper foil circuit 12
End is provided with contact point, and the contact point draws PCB windings plate 3, the exit conduct of the contact point by wire or conductor
The terminals 13 of flat surface transformer.The sandwich plate 4 is for separating armature winding plate 7 and secondary windings plate 8, and magnetic core group
The insulation board of part 1 and winding assembly 2, sandwich plate 4 preferably use insulation resin sheet.
In the present embodiment, multiple copper foil salient points 9 on guide plate 5, it is each around copper foil circuit 12 to be correspondingly arranged at circle
The knee of ring, copper foil salient point 9 are in close contact with circle around the knee of copper foil circuit 12.Terminals 13 are provided with guide plate 5,
Each one terminals 13 of corresponding connection of copper foil salient point 9, the corresponding terminals electrical connection of copper foil salient point 9.When guide plate 5
When being superimposed fitting with PCB windings plate 3, copper foil salient point 9 is in close contact with circle around the knee of copper circuit 12, each copper foil salient point 9
Drawn by wire, the coil that the copper foil salient point 9 of inner ring contains is fewer, therefore no-load voltage ratio is also with regard to smaller, the copper foil salient point 9 of outer ring
The coil contained is more, therefore no-load voltage ratio is also bigger.
PCB windings plate 3 can save winding skeleton, energy increasing heat radiation area, can reduce in high-frequency work by kelvin effect
With the eddy-current loss caused by kindred effect, it can also increase current density, its current density reaches as high as 20A/mm2, power is big,
Technique is simple, has preferable window utilization rate using pcb board, up to 0.25~0.3, and has the advantages of small volume；PCB types
Its power of transformer may be up to 20kW, and frequency is up to megahertz order of magnitude；Using pulse planar technique, multi-layer PCB is clipped in magnetic core
Between, thin and efficient ferrite flat surface transformer, its bottom area is small, height only have 7.4mm, working frequency be 150~
750kHz, operating temperature are -400~1300 DEG C.
Referring to Fig. 5, a kind of adjustable flat surface transformer, its manufacture method comprise the following steps：
S1：The all parts of processing and fabricating core assembly 1 and winding assembly 2；
S2：Carry out fitting assembling to the sandwich plate 4 in winding assembly 2, guide plate 5, PCB windings plate 3, form completely around
Group component 2；PCB windings plate 3 carries out array loop circuit printing, the circuitry shapes and plate-like of printing using circuit board printing technology
The structure of mosquito-repellent incense is similar；When the PCB windings plate 3 and guide plate 5 be bonded assembling, by the copper foil salient point 9 on guide plate 5 with
The corresponding contact connection in the knee of copper circuit, after the completion of PCB windings plate 3 is bonded with guide plate 5, should be led on PCB windings plate 3
Electric test, next step assembling is carried out again after pass the test；
S3：The core assembly 1 machined and the winding assembly 2 being completed are subjected to technique assembling, formed complete
Flat surface transformer；Core assembly 1 is fixedly mounted on the outside of winding assembly 2, while core assembly 1 has admittedly to winding assembly 2
Fixed effect, when each half storey in winding assembly 2 by be adhesively fixed connection after, core assembly 1 is further to winding assembly 2
Play fixation；
S4：The flat surface transformer that is completed carries out test adjustment, the test adjustment content be transformer operating efficiency,
Leakage inductance, heat transfer, working frequency, operating temperature and insulating properties, wherein operating efficiency reach 99%, leakage inductance less than 0.1%, heat
Conduction is good, the KHz of working frequency 50 to 20 megahertzs, operating temperature -60 to 150 DEG C and 10000V is dielectrically separated from, and adjusts
Packaging and storage is completed in examination.
When the PCB windings plate 3 and guide plate 5 be bonded assembling, need to by the copper foil salient point 9 on guide plate 5 and PCB around
The corresponding contact connection in the knee of copper circuit, after the completion of PCB windings plate 3 is bonded with guide plate 5, need to carry out energization examination on group plate 3
Test, carry out next step assembling after pass the test again.
In summary, a kind of adjustable flat surface transformer of the invention, in one layer of covering on traditional PCB windings plate 3
Guide plate 5, the guide plate 5 are provided with substantial amounts of copper foil salient point 9, and copper foil salient point 9 is bonded with the copper circuit on PCB windings plate 3 and connect
Touch, using the winding number of rings of copper foil salient point 9 everywhere, to change the turn ratio of flat surface transformer, reach and change flat surface transformer
No-load voltage ratio, meanwhile, the flat surface transformer of this kind of adjustable no-load voltage ratio is produced, is only added in the production process of original flat surface transformer
One piece of guide plate 5, and the guide plate 5 improves on the basis of PCB printed panels, therefore, manufacturing process is simple, and use is minimum
Cost, produce the adjustable plane transformer of high performance-price ratio, substantially increase the level of production technology and production technology.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of changes, modification can be carried out to these embodiments, replace without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (6)
1. a kind of adjustable flat surface transformer, including core assembly（1）And winding assembly（2）, it is characterised in that：
Core assembly（1）The magnetic core that fitting can be mutually corresponded to by a pair is formed, and the magnetic core includes bottom plate, set in the soleplate
The stem in portion（11）With the crossbeam for being arranged on bottom plate both sides（10）；
Winding assembly（2）, by PCB winding plates（3）, sandwich plate（4）And guide plate（5）Stacking turns into an entirety, in PCB windings
Plate（3）On be laid with around shape circle around copper foil circuit（12）, winding assembly（2）Center section offer through hole（6）, two
The stem of block magnetic core（11）Winding assembly is extended through from both ends（2）Middle through hole（6）After be bonded to each other；
The PCB windings plate（3）Including armature winding plate（7）With secondary windings plate（8）, the sandwich plate（4）Shared polylith, point
Armature winding plate is not arranged on（7）With secondary windings plate（8）Between, and core assembly（1）With winding assembly（2）Between；
The guide plate（5）Shared polylith, is mounted on armature winding plate respectively（7）With secondary windings plate（8）Outside, guiding
Plate（5）It is provided with multiple copper foil salient points（9）, the copper foil salient point（9）With PCB winding plates（3）The circle of upper laying is around copper foil circuit
（12）Electrical connection；
The circle is around copper foil circuit（12）Insertion is laid in armature winding plate（7）With secondary windings plate（8）On, in armature winding plate
（7）With secondary windings plate（8）Center section offer a through hole（6）, in sandwich plate（4）And guide plate（5）On open up
Have and the through hole（6）Corresponding through hole, the through hole（6）With the stem of magnetic core（11）Shape and size match, stem
（11）Can be completely through sandwich plate（4）, guide plate（5）, armature winding plate（7）With secondary windings plate（8）The through hole that middle part opens up；
In armature winding plate（7）With secondary windings plate（8）The circle of upper setting is around copper foil circuit（12）Two ends be provided with and connect
Contact, the contact point draw PCB winding plates by conductor（3）, the wiring of the exit of the contact point as flat surface transformer
End（13）.
A kind of 2. adjustable flat surface transformer according to claim 1, it is characterised in that：The winding assembly（2）Successively
By sandwich plate（4）, guide plate（5）, armature winding plate（7）, sandwich plate（4）, secondary windings plate（8）, guide plate（5）And sandwich plate
（4）Stack and form.
A kind of 3. adjustable flat surface transformer according to claim 1, it is characterised in that：The sandwich plate（4）For for
Separate armature winding plate（7）With secondary windings plate（8）, and core assembly（1）And winding assembly（2）Insulation board.
A kind of 4. adjustable flat surface transformer according to claim 1, it is characterised in that：Guide plate（5）On multiple copper
Paper tinsel salient point（9）, circle is correspondingly arranged at around copper foil circuit（12）The knee of each ring, copper foil salient point（9）With enclosing around copper foil circuit
（12）Knee be in close contact.
A kind of 5. adjustable flat surface transformer according to claim 4, it is characterised in that：The guide plate（5）It is provided with
Terminals（13）, each copper foil salient point（9）All one terminals of corresponding connection（13）, copper foil salient point（9）Corresponding wiring
End（13）Electrical connection.
6. the manufacture method of the adjustable flat surface transformer any one of claim 1 to 5, it is characterised in that including such as
Lower step：
S1：Processing and fabricating core assembly（1）And winding assembly（2）All parts；
S2：To winding assembly（2）In sandwich plate（4）, guide plate（5）, armature winding plate（7）With secondary windings plate（8）Carry out
Fitting assembling, forms complete winding assembly（2）；PCB winding plates（3）Array loop circuit is carried out using circuit board printing technology
Printing, the circuitry shapes of printing are similar with the structure of coiled mosquito-repellent incense；The PCB windings plate（3）With guide plate（5）Carry out fitting group
During dress, by guide plate（5）On copper foil salient point（9）With PCB winding plates（3）The corresponding contact connection in the knee of upper copper circuit, PCB
Winding plate（3）With guide plate（5）After the completion of fitting, energizing test should be carried out, next step assembling is carried out again after pass the test；
S3：The core assembly that will be machined（1）With the winding assembly being completed（2）Technique assembling is carried out, is formed complete
Flat surface transformer；Core assembly（1）It is fixedly mounted on winding assembly（2）Outside, while core assembly（1）To winding assembly
（2）Have the function that fixed, work as winding assembly（2）In each half storey by the connection that is adhesively fixed after, core assembly（1）Enter one
Step is to winding assembly（2）Play fixation；
S4：The flat surface transformer being completed carries out test adjustment, and the test adjustment content is transformer operating efficiency, leakage
Sense, heat transfer, working frequency, operating temperature and insulating properties, wherein operating efficiency reach 99%, leakage inductance less than 0.1%, work frequency
The KHz of rate 50 to 20 megahertzs, operating temperature -60 to 150 DEG C and 10000V is dielectrically separated from, and packaging and storage is completed in debugging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201138608Y (en) * | 2007-12-14 | 2008-10-22 | 蔡俊东 | Novel planar transformer |
| CN102237187A (en) * | 2010-04-30 | 2011-11-09 | 深圳市澳磁电源科技有限公司 | Planar transformer and method for manufacturing same through integration |
| CN204390863U (en) * | 2015-03-09 | 2015-06-10 | 刘晓霖 | The inductance of a kind of Based PC B or device for transformer |
| CN105590735A (en) * | 2016-03-14 | 2016-05-18 | 饶波 | Planar transformer |
| CN105914011A (en) * | 2016-05-31 | 2016-08-31 | 深圳市麦吉瑞科技有限公司 | Planar transformer |
| DE102016205276A1 (en) * | 2015-04-08 | 2016-10-13 | Lear Corporation | Cooling process for a planar electric power transformer |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8089331B2 (en) * | 2009-05-12 | 2012-01-03 | Raytheon Company | Planar magnetic structure |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201138608Y (en) * | 2007-12-14 | 2008-10-22 | 蔡俊东 | Novel planar transformer |
| CN102237187A (en) * | 2010-04-30 | 2011-11-09 | 深圳市澳磁电源科技有限公司 | Planar transformer and method for manufacturing same through integration |
| CN204390863U (en) * | 2015-03-09 | 2015-06-10 | 刘晓霖 | The inductance of a kind of Based PC B or device for transformer |
| DE102016205276A1 (en) * | 2015-04-08 | 2016-10-13 | Lear Corporation | Cooling process for a planar electric power transformer |
| CN105590735A (en) * | 2016-03-14 | 2016-05-18 | 饶波 | Planar transformer |
| CN105914011A (en) * | 2016-05-31 | 2016-08-31 | 深圳市麦吉瑞科技有限公司 | Planar transformer |
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| CN106373733A (en) | 2017-02-01 |
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