CN205542318U - Transformer winding and transformer based on flexible circuit board - Google Patents

Transformer winding and transformer based on flexible circuit board Download PDF

Info

Publication number
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
Authority
CN
China
Prior art keywords
flexible pcb
circuit board
pad
winding
wire
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201620238396.8U
Other languages
Chinese (zh)
Inventor
陈青昌
罗标
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai United Imaging Healthcare Co Ltd
Original Assignee
Shanghai United Imaging Healthcare Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shanghai United Imaging Healthcare Co Ltd filed Critical Shanghai United Imaging Healthcare Co Ltd
Priority to CN201620238396.8U priority Critical patent/CN205542318U/en
Application granted granted Critical
Publication of CN205542318U publication Critical patent/CN205542318U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Coils Of Transformers For General Uses (AREA)
  • Coils Or Transformers For Communication (AREA)

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

Transformer Winding based on flexible PCB and transformator
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.
CN201620238396.8U 2016-03-25 2016-03-25 Transformer winding and transformer based on flexible circuit board Active CN205542318U (en)

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

Family

ID=56785086

Family Applications (1)

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

Country Status (1)

Country Link
CN (1) CN205542318U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
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

Cited By (4)

* Cited by examiner, † Cited by third party
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

Similar Documents

Publication Publication Date Title
US6867678B2 (en) Transformer structure
CN102569249B (en) Three-dimensional inductor
RU2481662C2 (en) Flat coil
CN110301019B (en) Transformer and switching power supply
EP3648129B1 (en) Transformer module and power module
CN109686540A (en) Capacitive voltage conversion device
JP2012069896A (en) Composite winding element and transformer, transformation system using the same, and composite winding element for noise cut filter
JP4504426B2 (en) Planar high voltage transformer device
CN205542318U (en) Transformer winding and transformer based on flexible circuit board
KR101251843B1 (en) Transformer
US10951067B2 (en) Power transmission unit
CN201556524U (en) Electronic type current transformer with PCB Rockwell coil
CN106373733B (en) A kind of adjustable flat surface transformer and its manufacture method
CN206471205U (en) A kind of adjustable flat surface transformer
CN206271516U (en) A kind of magnetic element
CN113628851B (en) Winding assembly and magnetic element
CN106409480A (en) Rounding type planar transformer and manufacturing method thereof
CN106449042A (en) High-efficiency planar transformer
CN202110931U (en) Planar transformer
JPH03126204A (en) High frequency coil
CN212724963U (en) Flat transformer
WO2023216757A9 (en) Shielding apparatus and electrical device
CN104425111A (en) Coil structure and manufacturing method thereof
CN214505217U (en) Transformer device
CN203179670U (en) Flat coil

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
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.

CP01 Change in the name or title of a patent holder