CN205542318U - Transformer winding and transformer based on flexible circuit board - Google Patents
Transformer winding and transformer based on flexible circuit board Download PDFInfo
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- CN205542318U CN205542318U CN201620238396.8U CN201620238396U CN205542318U CN 205542318 U CN205542318 U CN 205542318U CN 201620238396 U CN201620238396 U CN 201620238396U CN 205542318 U CN205542318 U CN 205542318U
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Abstract
The utility model discloses a transformer winding based on the flexible circuit board, including flexible circuit board, the inner insulating layer and external insulation layer, the flexible circuit board is the tube -shape, and the flexible circuit board includes at least one conducting layer, is formed with at least one circle wire winding on the conducting layer, and the inner insulating layer sets up in the inboard of flexible circuit board, and the external insulation layer setting is in the outside of flexible circuit board. The utility model also discloses a transformer of based on above -mentioned transformer winding. The utility model discloses use the line of walking on the flexible circuit board to substitute transformer winding, coil the flexible circuit board, walk the line on it and weld from beginning to end and form secondary side high voltage winding promptly, simplified secondary side high voltage winding's coiling technology. Simultaneously, walk the secondary side winding of linear one -tenth on it by the flexible circuit board, on each circle line all was in position accurate relatively, parasitic capacitance and leakage inductance isoparametric relatively fixed did benefit to product batch's uniformity.
Description
Technical field
This utility model relates to field transformer, particularly relates to Transformer Winding based on flexible PCB and change
Depressor.
Background technology
Transformator (Transformer) be the principle utilizing electromagnetic induction to change the device of alternating voltage, main
Wanting component is primary coil, secondary coil and iron core (magnetic core).Major function has: voltage transformation, electric current become
Change, impedance transformation, isolation, voltage stabilizing (magnetic saturation transformator) etc..
Transformator is made up of iron core (or magnetic core) and coil, and coil has two or more winding, its
In connect the winding of power supply primary coil, remaining winding is secondary coil.It can convert alternating voltage,
Electric current and impedance.Iron core that simplest iron-core transformer is made by a soft magnetic materials and being enclosed within iron core
The coil composition that two numbers of turn do not wait.Effect unshakable in one's determination is to strengthen the magnetic coupling between two coils.In order to reduce
Eddy current and magnetic hystersis loss in unshakable in one's determination, iron core is formed by the silicon steel plate stacking painted；Electricity is not had between two coils
Contact, traditional coil is coiled into by insulated copper wire (or aluminum steel).One coil connects at the beginning of alternating current power supply is referred to as
Level coil (or primary coil), another coil connects electrical appliance and is referred to as secondary coil (or secondary coil).
High frequency high voltage transformer is the core component of high-frequency and high-voltage power supply, be responsible for a liter high voltage, transmission energy,
The critical function of security isolation.High-tension transformer is the function realizing output high pressure, secondary side high-voltage line bag
Number of winding turns often holds dozens or even hundreds of times of group for primary side low-voltage line, and its parasitic parameter also can in addition
Participate in the resonant process of circuit, affect the running parameter of circuit.Existing high frequency high voltage transformer secondary side is high
Enamel-covered wire coiling typically used by line ball bag, has that technique for coiling is complicated, parameter consistency is poor, human cost is high
Shortcoming, is unfavorable for that product is produced in batches.
Utility model content
The inventors found that: it is high, lightweight that flexible PCB has distribution density, and thickness is thin, curved
The good characteristics that folding endurance is good.Flexible PCB (Flexible Printed Circuit Board) is called for short " soft board ", OK
It is commonly called as in the industry FPC, is the printed circuit board that insulating substrate is made with polyimides or mylar.Flexible
Circuit board can bear the bending of millions of times and not damage its wire, can require arbitrarily to arrange according to space layout,
And arbitrarily move at three dimensions and stretch, thus reach components and parts assembling and integration that wire connects；Soft
Property circuit board can be substantially reduced the volume and weight of electronic product, be suitable for electronic product to high density, miniaturization,
The needs that highly reliable direction is developed.
Above-mentioned advantage based on flexible PCB, the invention provides a kind of transformator based on flexible PCB
Winding and transformator, use flexible PCB to substitute Transformer Winding, simplify transformer coil wire winding,
The concordance of parameter is preferable, the beneficially batch production of product.
This utility model provides a kind of Transformer Winding based on flexible PCB, including flexible PCB,
Inner insulating layer and external insulation layer, described flexible PCB is tubular, and described flexible PCB includes at least one
Conductive layer, described conductive layer is formed at least one circle wire winding, and described inner insulating layer is arranged on described soft
The inner side of property circuit board, described external insulation layer is arranged on the outside of described flexible PCB.
Further, described flexible PCB is formed by flexible planar circuit board winding, described planar circuit
Plate has the left side and right edge being parallel to each other, when winding described planar circuit board, described left side and the right side
Overlapping sideways forms described flexible PCB, and described left side and right edge are provided with multiple pad, position
It is connected with between the pad of right edge in the pad of left side and has at least one wire, each described pad
Only connect a wire.
Further, the pad of described left side be connected with between the pad of described right edge have many
Individual wire, when winding described planar circuit board, is positioned at the pad of a wire one end and is positioned at another wire
The pad overlap of one end makes two wire connections.
Further, the plurality of wire is parallel to each other.
Further, when winding described planar circuit board, the pad being positioned at same wire two ends is interleaved.
Further, the connection of multiple described wires forms multicircuit winding.
Further, the pad being positioned at described left side is correspondingly arranged with the pad being positioned at described right edge, phase
Two corresponding the most described left side of pad and right edge, at sustained height, are positioned at pad and the position of left side
Connect between the pad of right edge differing heights and have wire, when winding described planar circuit board, be positioned at same
Two pad overlaps of height.
This utility model additionally provides the transformator of a kind of flexible PCB, including the magnetic core and at least of Guan Bi
Individual Transformer Winding based on flexible PCB, described Transformer Winding is set on described magnetic core, described change
Depressor winding includes that flexible PCB, inner insulating layer and external insulation layer, described flexible PCB are tubular, institute
Stating and be formed with at least one circle wire winding on flexible PCB, described inner insulating layer is arranged on described flexible circuit
The inner side of plate, described external insulation layer is arranged on the outside of described flexible PCB.
Described magnetic core is annular.
Further, described flexible PCB is spliced to form by the planar circuit board that at least two is flexible, wherein,
Each described planar circuit board has two sides being parallel to each other, and each described side is provided with many
Individual pad, approximately the same plane circuit board connects between the pad of two described sides and has at least one wire,
Each described pad only connects a wire.
Described Transformer Winding is secondary windings.
The outside of described Transformer Winding is additionally provided with at least one described Transformer Winding.
Implement this utility model, have the advantages that
(1) to make full use of flexible PCB distribution density high, lightweight for this utility model, and thickness is thin, bending
Property good good characteristics, use the cabling on flexible PCB to substitute Transformer Winding, the particularly number of windings
The secondary side Multiple coil high-voltage line bag that mesh is many, winds flexible PCB, and its upward wiring head and the tail welding is i.e. formed
Secondary side high pressure winding, simplifies the technique for coiling of secondary side high pressure winding.Meanwhile, by flexible PCB its
The secondary side winding that upward wiring is formed, each circle line all on relatively accurate position, parasitic capacitance and leakage
The parameters such as sense are relatively fixed, beneficially the concordance of product batch.
(2) this utility model arranges inner insulating layer in the inner side of flexible PCB, outside arranges external insulation layer,
So that the Transformer Winding insulating properties that flexible PCB is formed are more preferable, and owing to flexible PCB material is light
Thin, described inner insulating layer and external insulation layer can be more frivolous insulating paper, thus reduce transformator further
The overall weight of winding and volume, reduce cost.
(3), in transformator of the present utility model, Transformer Winding based on flexible PCB can be as secondary
Side Multiple coil high-voltage line bag, it is also possible to as first side winding, the number of turn of winding center line circle is by wire between pad
Quantity determine, convenient calculate the number of turn and transformation ratio.
(4), in transformator of the present utility model, Transformer Winding is based on flexible PCB, the most applicable
Multi-layer high-voltage transformator in layering coiling.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art and advantage, under
The accompanying drawing used required in embodiment or description of the prior art will be briefly described by face, it should be apparent that,
Accompanying drawing in describing below is only embodiments more of the present utility model, for those of ordinary skill in the art
From the point of view of, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the schematic diagram of the Transformer Winding that this utility model embodiment one provides；
Fig. 2 is the schematic diagram of the planar circuit board that this utility model embodiment one provides；
Fig. 3 is the schematic diagram of the flexible PCB that this utility model embodiment one provides；
Fig. 4 is the schematic diagram of the transformator that this utility model embodiment three provides.
In figure: 1-flexible PCB, 10-planar circuit board, 2-wire, 3-pad, 4-inner insulating layer, outside 5-
Insulating barrier, 6-magnetic core.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, to the technical side in this utility model embodiment
Case is clearly and completely described, it is clear that described embodiment is only that this utility model part is real
Execute example rather than whole embodiments.Based on the embodiment in this utility model, ordinary skill people
The every other embodiment that member is obtained on the premise of not making creative work, broadly falls into this practicality new
The scope of type protection.
Embodiment one:
Flexible PCB can bear the bending of millions of times and not damage its wire, can be according to space layout requirement
Arbitrarily arrange, and arbitrarily move at three dimensions and stretch, thus reach components and parts assembling and wire connection
Integration；Flexible PCB can be substantially reduced the volume and weight of electronic product, is suitable for electronic product to highly dense
The needs that degree, miniaturization, highly reliable direction are developed.
Above-mentioned advantage based on flexible PCB, this utility model provides a kind of change based on flexible PCB
Depressor winding and transformator, use flexible PCB to substitute Transformer Winding, simplify transformer coil coiling
Technique, the concordance of parameter is preferable, the beneficially batch production of product.
As shown in Figure 1-Figure 3, this utility model provides a kind of Transformer Winding based on flexible PCB,
Including flexible PCB 1, inner insulating layer 4 and external insulation layer 5, described flexible PCB 1 is tubular, described
Flexible PCB 1 includes at least one conductive layer, and described conductive layer is formed at least one circle wire winding,
Described inner insulating layer 4 is arranged on the inner side of described flexible PCB 1, and described external insulation layer 5 is arranged on described
The outside of flexible PCB 1.Due to the bendability characteristics of flexible PCB 1, in actual application, soft
Property circuit board 1 can be formed as cylindric, square tube shape or other classes according to the concrete shape of its transformator being coated with
The tubular structure of type, the concrete shape of flexible PCB 1 is relevant to core shapes.
Flexible PCB 1 can be flexible printed circuit board (PCB) i.e. pcb board.This flexible PCB 1 can
Including the dielectric film being made up of dielectric material (such as, such as polyimides) and conductive layer.Conductive layer is permissible
Being made up of the ductile metal layer of such as copper or gold, conductive layer can be attached at dielectric film by the way of plated film
Go up or between two-layer dielectric film.It should be noted that this conductive layer may be located at described flexible PCB 1
Outer surface on, it is also possible to being positioned at the inside of flexible PCB 1, flexible PCB 1 can be included therein
Multiple conductive layers, each of which can from outside again by through hole or other structure at precalculated position electricity
Connect.Being formed with at least one circle wire winding on described conductive layer can be by the method for etching at conductive layer
Upper etching forms some wires 2, this wire 2 end to end formation one circle or wire 2 winding of multiturn.
Inner insulating layer 4 and external insulation layer 5 can be one layer of insulating paper can also for the insulant of other forms,
Having only to ensure the inner side that inner insulating layer 4 is attached to flexible PCB 1, external insulation layer 5 is attached to flexible electrical
The outside of road plate 1, thus increase the safety of circuit.
It is formed with the inner surface that the conductive layer of wire winding may be located at the flexible PCB 1 of tubular；Also may be used
To be positioned at the outer surface of flexible PCB 1；May be located on the centre of flexible PCB 1, between outside
Between surface and inner surface.
Formed as in figure 2 it is shown, described flexible PCB 1 is wound by flexible planar circuit board 10, described flat
Face circuit board 10 has the left side and right edge being parallel to each other, when winding described planar circuit board 10, institute
State left side and right edge overlaps to form described flexible PCB 1, described left side and right edge are provided with
Multiple pads 3, are connected with between the pad 3 of right edge at the pad 3 of left side and have at least one to lead
Line 2, each described pad 3 only connects a wire 2.Article one, wire 2 is rolled can form a circle winding.
Certainly, in order to form multicircuit winding, it is positioned at the pad 3 of described left side and is positioned at described right edge
Connect between pad 3 and have multiple wire 2, when winding described planar circuit board 10, be positioned at a wire 2 one
The pad 3 of end is overlapping with the pad 3 being positioned at another wire 2 one end makes two wires 2 connect.
In order to form the multicircuit winding of connection, when winding described planar circuit board 10, it is positioned at same wire 2
The pad 3 at two ends is interleaved, say, that the pad 3 at same wire 2 two ends can not be overlapping, otherwise,
A turn coil of Guan Bi can be formed.
As a kind of mode, the plurality of wire 2 can be parallel to each other, and equidistantly, is so formed
Wire winding is highly uniform.But, it will be understood by a person skilled in the art that multiple wire 2 can not be mutual
Parallel, spacing can also be different, as long as it is the most permissible to make to form multicircuit winding on flexible PCB 1.
When multiple wires 2 are parallel and equidistant, it are positioned at the pad 3 of described left side and are positioned at described right edge
Pad 3 is correspondingly arranged, two corresponding the most described left side of pad 3 and right edge at sustained height,
It is connected with between the pad 3 of right edge differing heights at the pad 3 of left side and has wire 2, wind institute
When stating planar circuit board 10, two pads 3 being positioned at sustained height are overlapping, thus form multicircuit winding.
Embodiment two:
As in figure 2 it is shown, present embodiments provide a kind of Transformer Winding based on flexible PCB, including soft
Property circuit board, inner insulating layer 4 and external insulation layer 5, described flexible PCB is tubular, described flexible PCB
Including at least one conductive layer, described conductive layer is formed with at least one circle wire winding, described inner insulating layer 4
Being arranged on inside described flexible PCB 1, described external insulation layer 5 is arranged on outside described flexible PCB 1.
The present embodiment is with the difference of embodiment one, and described flexible PCB is by the plane of multiple flexibilities
Circuit board 10 is spliced to form rather than winds formation, and wherein, each described planar circuit board 10 has phase
Two the most parallel sides, each described side is provided with multiple pad 3, approximately the same plane circuit board
Connecting between the pad 3 of two described sides on 10 has at least one wire 2, each described pad 3 only to connect
Connect a wire 2.
As a example by two planar circuit board 10 splicings, two planar circuit boards 10 are spliced to form the flexibility of tubular
Circuit board, the pad 3 of the correspondence on two sides of stitching portion is overlapped, is formed on flexible PCB
At least one circle winding, multiple pads 3 are overlapped, form multicircuit winding.
Certainly, multiple planar circuit boards 10 can also be spliced to form the flexible PCB of tubular, the two of stitching portion
The pad 3 of the correspondence on individual side is overlapped, forms at least one circle winding on flexible PCB, multiple
Pad 3 is overlapped, forms multicircuit winding.
Embodiment three:
As shown in Figure 4, this utility model additionally provides a kind of transformator based on flexible PCB, including closing
The magnetic core 6 closed and at least one Transformer Winding based on flexible PCB, described Transformer Winding is set in
On described magnetic core 6, described Transformer Winding includes flexible PCB 1, inner insulating layer 4 and external insulation layer 5,
Described flexible PCB 1 is tubular, and described flexible PCB 1 includes at least one conductive layer, described conduction
Being formed with at least one circle wire winding on Ceng, described inner insulating layer 4 is arranged on the interior of described flexible PCB 1
Side, described external insulation layer 5 is arranged on the outside of described flexible PCB 1.
Described magnetic core 6 is annular.
Described Transformer Winding can be secondary windings.Owing to formation multiturn can be etched on flexible PCB 1
Fine and closely woven winding, the especially suitable high-tension transformer higher for transformation ratio of Transformer Winding of the present utility model.
Described transformator also includes armature winding (not shown).Certainly, armature winding can also be described based on
The Transformer Winding of flexible PCB.
The outside of described Transformer Winding is additionally provided with at least one described Transformer Winding.Of the present utility model
In transformator, Transformer Winding, based on flexible PCB, is therefore highly suitable for being layered the multi-layer high-voltage of coiling
Transformator.
Implement this utility model, have the advantages that
(1) to make full use of flexible PCB distribution density high, lightweight for this utility model, and thickness is thin, bending
Property good good characteristics, use the cabling on flexible PCB to substitute Transformer Winding, the particularly number of windings
The secondary side Multiple coil high-voltage line bag that mesh is many, winds flexible PCB, and its upward wiring head and the tail welding is i.e. formed
Secondary side high pressure winding, simplifies the technique for coiling of secondary side high pressure winding.Meanwhile, by flexible PCB its
The secondary side winding that upward wiring is formed, each circle line all on relatively accurate position, parasitic capacitance and leakage
The parameters such as sense are relatively fixed, beneficially the concordance of product batch.
(2) this utility model arranges inner insulating layer in the inner side of flexible PCB, outside arranges external insulation layer,
So that the Transformer Winding insulating properties that flexible PCB is formed are more preferable, and owing to flexible PCB material is light
Thin, described inner insulating layer and external insulation layer can be more frivolous insulating paper, thus reduce transformator further
The overall weight of winding and volume, reduce cost.
(3), in transformator of the present utility model, Transformer Winding based on flexible PCB can be as secondary
Side Multiple coil high-voltage line bag, it is also possible to as first side winding, the number of turn of winding center line circle is by wire between pad
Quantity determine, convenient calculate the number of turn and transformation ratio.
(4), in transformator of the present utility model, Transformer Winding is based on flexible PCB, the most applicable
Multi-layer high-voltage transformator in layering coiling.
The above is preferred implementation of the present utility model, it is noted that general for the art
For logical technical staff, on the premise of without departing from this utility model principle, it is also possible to make some improvement and
Retouching, these improvements and modifications are also considered as protection domain of the present utility model.
Claims (10)
1. Transformer Winding based on flexible PCB, it is characterised in that include flexible PCB (1), interior
Insulating barrier (4) and external insulation layer (5), described flexible PCB (1) is tubular, described flexible PCB
(1) include at least one conductive layer, described conductive layer be formed at least one circle wire winding, described interior absolutely
Edge layer (4) is arranged on the inner side of described flexible PCB (1), and described external insulation layer (5) is arranged on described
The outside of flexible PCB (1).
Transformer Winding based on flexible PCB the most according to claim 1, it is characterised in that institute
State flexible PCB (1) to be formed by flexible planar circuit board (10) winding, described planar circuit board (10)
There is the left side and right edge being parallel to each other, when winding described planar circuit board (10), described left side
Overlap to form described flexible PCB (1) with right edge, described left side and right edge are provided with multiple
Pad (3), being positioned between the pad (3) of left side and the pad (3) being positioned at right edge to be connected has at least
One wire (2), each described pad (3) only connects a wire (2).
Transformer Winding based on flexible PCB the most according to claim 2, it is characterised in that position
It is connected between the pad (3) and the pad (3) being positioned at described right edge of described left side and has multiple wire
(2), when winding described planar circuit board (10), be positioned at the pad (3) of wire (2) one end with
Pad (3) overlap being positioned at another wire one end makes two wire (2) connections.
Transformer Winding based on flexible PCB the most according to claim 3, it is characterised in that institute
State multiple wire (2) to be parallel to each other.
Transformer Winding based on flexible PCB the most according to claim 3, it is characterised in that volume
When described planar circuit board (10), the pad (3) being positioned at same wire (2) two ends is interleaved.
Transformer Winding based on flexible PCB the most according to claim 3, it is characterised in that many
The connection of individual described wire (2) forms multicircuit winding.
Transformer Winding based on flexible PCB the most according to claim 3, it is characterised in that position
Pad (3) in described left side is correspondingly arranged with the pad (3) being positioned at described right edge, corresponding
Two the most described left side of pad (3) and right edge, at sustained height, are positioned at the pad (3) of left side
And it is connected between the pad (3) being positioned at right edge differing heights and has wire (2), wind described planar circuit board
(10), time, two pads (3) being positioned at sustained height are overlapping.
Transformer Winding based on flexible PCB the most according to claim 1, it is characterised in that institute
State flexible PCB (1) to be spliced to form by the planar circuit board (10) that at least two is flexible, wherein, each
Described planar circuit board (10) all has two sides being parallel to each other, and each described side is provided with
Multiple pads (3), connect between the pad (3) of upper two the described sides of approximately the same plane circuit board (10)
At least one wire (2), each described pad (3) is had only to connect a wire (2).
9. transformator based on flexible PCB, it is characterised in that include the magnetic core (6) and at least of Guan Bi
One Transformer Winding, described Transformer Winding is set on described magnetic core (6), described Transformer Winding bag
Including flexible PCB (1), inner insulating layer (4) and external insulation layer (5), described flexible PCB (1) is
Tubular, described flexible PCB (1) is formed at least one circle wire winding, described inner insulating layer (4)
Being arranged on the inner side of described flexible PCB (1), described external insulation layer (5) is arranged on described flexible circuit
The outside of plate (1).
Transformator based on flexible PCB the most according to claim 9, it is characterised in that described
The outside of Transformer Winding is additionally provided with at least one described Transformer Winding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620238396.8U CN205542318U (en) | 2016-03-25 | 2016-03-25 | Transformer winding and transformer based on flexible circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620238396.8U CN205542318U (en) | 2016-03-25 | 2016-03-25 | Transformer winding and transformer based on flexible circuit board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205542318U true CN205542318U (en) | 2016-08-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620238396.8U Active CN205542318U (en) | 2016-03-25 | 2016-03-25 | Transformer winding and transformer based on flexible circuit board |
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| Country | Link |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106409480A (en) * | 2016-11-07 | 2017-02-15 | 广安市华蓥山领创电子有限公司 | Rounding type planar transformer and manufacturing method thereof |
| CN107464674A (en) * | 2017-09-29 | 2017-12-12 | 中国工程物理研究院电子工程研究所 | A kind of electric-force gradient gradual change transformer and flexible circuit potential device |
| CN111721330A (en) * | 2020-06-04 | 2020-09-29 | 深圳市森瑟科技发展有限公司 | Coil and LVDT linear displacement sensor of flexbile plate wiring |
-
2016
- 2016-03-25 CN CN201620238396.8U patent/CN205542318U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106409480A (en) * | 2016-11-07 | 2017-02-15 | 广安市华蓥山领创电子有限公司 | Rounding type planar transformer and manufacturing method thereof |
| CN107464674A (en) * | 2017-09-29 | 2017-12-12 | 中国工程物理研究院电子工程研究所 | A kind of electric-force gradient gradual change transformer and flexible circuit potential device |
| CN107464674B (en) * | 2017-09-29 | 2019-04-05 | 中国工程物理研究院电子工程研究所 | A kind of electric-force gradient gradual change transformer and flexible circuit potential device |
| CN111721330A (en) * | 2020-06-04 | 2020-09-29 | 深圳市森瑟科技发展有限公司 | Coil and LVDT linear displacement sensor of flexbile plate wiring |
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| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 201807 Shanghai City, north of the city of Jiading District Road No. 2258 Patentee after: Shanghai Lianying Medical Technology Co., Ltd Address before: 201807 Shanghai City, north of the city of Jiading District Road No. 2258 Patentee before: SHANGHAI UNITED IMAGING HEALTHCARE Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |