CN206271494U - A kind of laminated type film inductor - Google Patents
A kind of laminated type film inductor Download PDFInfo
- Publication number
- CN206271494U CN206271494U CN201621415562.3U CN201621415562U CN206271494U CN 206271494 U CN206271494 U CN 206271494U CN 201621415562 U CN201621415562 U CN 201621415562U CN 206271494 U CN206271494 U CN 206271494U
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- Prior art keywords
- inductor
- planar
- planar spiral
- magnetic core
- laminated type
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- 238000004804 winding Methods 0.000 claims abstract description 41
- 210000001217 buttock Anatomy 0.000 claims abstract description 21
- 230000000630 rising effect Effects 0.000 claims abstract description 9
- 229910052751 metal Inorganic materials 0.000 claims description 13
- 239000002184 metal Substances 0.000 claims description 13
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 6
- 239000006071 cream Substances 0.000 claims description 6
- 230000005389 magnetism Effects 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 abstract 1
- 239000004020 conductor Substances 0.000 abstract 1
- 239000011229 interlayer Substances 0.000 abstract 1
- 239000011162 core material Substances 0.000 description 43
- 238000000034 method Methods 0.000 description 18
- 238000010586 diagram Methods 0.000 description 11
- 229910000859 α-Fe Inorganic materials 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 241000237858 Gastropoda Species 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 229910000889 permalloy Inorganic materials 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000976 Electrical steel Inorganic materials 0.000 description 1
- 229910003962 NiZn Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003467 diminishing effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- -1 iron aluminum silicon Chemical compound 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000011863 silicon-based powder Substances 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
This application discloses a kind of laminated type film inductor, including the planar spiral inductor that multiple is layering, the planar spiral inductor includes planar sheet magnetic core and the planar spiral winding being sheathed in the sheet magnetic core, and first buttock line end of multiple planar spiral windings is connected with each other.So that planar spiral inductor is so constantly superimposed, use the frame mode for being similar to ceramic laminated inductance, the interlayer connected mode of planar spiral winding is that conductor is connected with each other the buttock line end of rising of planar spiral winding by inter-level vias, is connected, and effectively improves inductance value.
Description
Technical field
The utility model is related to electronic component technology field, more specifically to a kind of laminated type film inductor.
Background technology
Inductor is the element that electric energy can be converted into magnetic energy and be stored.The structure of inductor is similar to transformation
Device, but only one of which winding, inductor have certain inductance, and it only hinders the change of electric current.If inductor is without electricity
In the state of stream passes through, it will attempt to hinder electric current to flow through it when circuit is connected, if inductor is in the state for having electric current to pass through
Under, it will attempt to maintain electric current constant when circuit disconnects, and inductor is also known as choke, reactor, dynamic reactor.With communication
The continuous progress of equipment industry, power industry etc., machine product toward miniaturization, flattening development trend, to stable power-supplying and
Filtering aspect has requirement higher.Inductor necessarily follows the development of application industry, can just keep up with the paces of development.
So the developing direction of following inductor：Miniaturization, flattening, high current.
At present, the planar coil of the usual only one of which flattening of inductor of flattening design, causes inductance value relatively low, nothing
Method meets the circuit application of the big inductance value of some needs.Therefore, how improve flattening film inductor inductance value be ability
The field technique personnel urgency technical issues that need to address.
Utility model content
In order to solve the above technical problems, the utility model provides a kind of laminated type film inductor, including multiple layer stackups
Plus planar spiral inductor, laminated type design can be superimposed lattice coil, flattening film inductor inductance value can be made up
Too small defect, improves the inductance value of film inductor.
To achieve the above object, the utility model provides following technical scheme：
A kind of laminated type film inductor, including the planar spiral inductor that multiple is layering, the snail electricity
Sensor includes planar sheet magnetic core and the planar spiral winding being sheathed in the sheet magnetic core, multiple snail lines
The buttock line end of rising of circle is connected with each other.
Preferably, in above-mentioned laminated type film inductor, the planar spiral inductor is planar rectangular spiral inductance
Device, the planar sheet magnetic core is planar rectangular sheet magnetic core.
Preferably, in above-mentioned laminated type film inductor, the planar spiral inductor is provided with for the plane
The through hole that a buttock line end of spiral winding is welded to each other.
Preferably, in above-mentioned laminated type film inductor, the buttock line end of rising of the multiple planar spiral winding leads to
Tin cream is crossed to be welded to each other.
Preferably, in above-mentioned laminated type film inductor, also including metal terminal, the metal terminal offers clamping
The groove of the multiple planar spiral inductor being layering.
Preferably, in above-mentioned laminated type film inductor, the bottom surface of the groove on the metal terminal with it is described
It is close to the side of the planar spiral inductor that multiple is layering.
Preferably, in above-mentioned laminated type film inductor, the planar sheet magnetic core is soft magnetism material magnetic core.
It is from above-mentioned technical proposal as can be seen that a kind of laminated type film inductor provided by the utility model including many
The individual planar spiral inductor being layering, the planar spiral inductor includes planar sheet magnetic core and is sheathed on described
Planar spiral winding in shape magnetic core, the buttock line end of rising of multiple planar spiral windings is connected with each other.By using lamination electricity
The frame mode of sense so that planar spiral inductor is so constantly superimposed, each planar spiral inductor includes planar sheet
Magnetic core and the planar spiral winding being sheathed in the sheet magnetic core, a buttock line end of multiple planar spiral windings are mutual
Connection, is connected, and effectively increases inductance value.
Brief description of the drawings
In order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or the accompanying drawing to be used needed for description of the prior art is briefly described, it should be apparent that, drawings in the following description are only
It is embodiment of the present utility model, for those of ordinary skill in the art, on the premise of not paying creative work, also
Other accompanying drawings can be obtained according to the accompanying drawing for providing.
A kind of planar sheet magnetic core schematic diagram that Fig. 1 is provided for the utility model implementation method；
A kind of planar spiral winding schematic diagram that Fig. 2 is provided for the utility model implementation method；
A kind of planar spiral inductor schematic diagram that Fig. 3 is provided for the utility model implementation method；
A kind of laminated type film inductor schematic diagram that Fig. 4 is provided for the utility model implementation method；
Fig. 5 shows for a kind of film inductor section of laminated type two-layer planar coil that the utility model implementation method is provided
It is intended to；
The film inductor section of the layer plane coil of another laminated type four that Fig. 6 is provided for the utility model implementation method
Schematic diagram；
A kind of laminated type film inductor process flow diagram that Fig. 7 is provided for the utility model implementation method.
Specific embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment for being obtained, belongs to the scope of the utility model protection.
Refer to, a kind of planar sheet magnetic core schematic diagram that Fig. 1 is provided for the utility model implementation method；Fig. 2 is this reality
A kind of planar spiral winding schematic diagram provided with new implementation method；One kind that Fig. 3 is provided for the utility model implementation method
Planar spiral inductor schematic diagram；A kind of laminated type film inductor schematic diagram that Fig. 4 is provided for the utility model implementation method,
A kind of film inductor generalized section of laminated type two-layer planar coil that Fig. 5 is provided for the utility model implementation method, Fig. 6
It is the film inductor generalized section of the layer plane coil of another laminated type four that the utility model implementation method is provided；Fig. 7
For a kind of laminated type film inductor process flow diagram that the utility model implementation method is provided.
In a kind of specific embodiment, there is provided a kind of laminated type film inductor, as shown in Fig. 4, Fig. 5 and Fig. 6,
Including the planar spiral inductor that multiple is layering, the planar spiral inductor includes planar sheet magnetic core 01 and is arranged
Planar spiral winding 02 in the sheet magnetic core, the buttock line end of rising of multiple planar spiral windings 02 is connected with each other.
Wherein, planar spiral winding 02 is the plane for matching prepared previously according to the shape of planar sheet magnetic core 01
Spiral winding 02, planar spiral winding 02 is sheathed in planar sheet magnetic core 01.Specifically, using copper sheet punching press or swashing
Light engraving mode makes flat frame-shaped planar spiral winding 02, and favourable flattening design can bear high current.Due to winding and
The distance between coil increases, and can effectively reduce distribution capacity, is allowed to have resonant frequency higher, than electricity of the prior art
Sensor has frequency of use higher.It is pointed out that the shape of planar sheet magnetic core 01 can be provided with it is flat for placing
The tabular magnetic core of the groove of face spiral coil 02, or the tabular magnetic core of helical form hollow out is provided with, in helical form hollow out
In be arranged helical form planar spiral winding, in protection domain.
For example, planar spiral winding 02 is fitted on planar sheet magnetic core 01, and tin cream is added buttock line end position is played, put down
Dough sheet shape magnetic core 01 is placed on the planar sheet magnetic core 01 for assembling planar spiral winding 02, and planar spiral winding 02 is assembled
Planar sheet magnetic core 01, and planar spiral winding 02 is compressed using fixture, 02 buttock line end in contact plane of planar spiral winding
Spiral winding 02 plays buttock line end, and is pressed on tin cream, it should be pointed out that in being arranged, and will play buttock line end from magnetic core
The heart is drawn, or side is drawn.The planar spiral inductor being layering is placed on Reflow Soldering (or in baking oven) temperature
More than 245 DEG C, planar spiral winding 02 and planar spiral winding 02 are welded, the like, then by planar sheet magnetic core
01 assembling etc., all of coil is all connected, and as a coil, finally installs metal terminal 03 as device bonding pad.Need
It is noted that because laminated type design can be superimposed lattice coil, can make up after flattening cannot inductance value lacking of diminishing
Point, the inductance value for obtaining can accomplish arbitrary inductance value high, while there is high current, higher cutoff frequency.
A kind of laminated type film inductor provided by the utility model, including the planar spiral inductor that multiple is layering
Device, the planar spiral inductor includes planar sheet magnetic core 01 and the planar spiral winding being sheathed in the sheet magnetic core
02, the buttock line end of rising of multiple planar spiral windings 02 is welded to each other.By using the frame mode of laminated inductance so that flat
Surface helix inductor is so constantly superimposed, and each planar spiral inductor includes planar sheet magnetic core 01 and is sheathed on described
Planar spiral winding 02 in sheet magnetic core, the buttock line end of rising of multiple planar spiral windings 02 is welded to each other, and is connected,
Effectively increase inductance value.
On the basis of above-mentioned laminated type film inductor, as depicted in figs. 1 and 2, the planar spiral inductor is flat
Face rectangle spiral inductor device, the planar sheet magnetic core 01 is planar rectangular sheet magnetic core.
It is pointed out that the shape of planar spiral inductor includes but is not limited to above-mentioned planar rectangular spiral inductor,
For example, it is also possible to be planar rondure spiral inductor, corresponding planar sheet magnetic core 01 is planar rondure sheet magnetic core etc., is existed
In protection domain.
Further, in above-mentioned laminated type film inductor, the planar spiral inductor is provided with for described flat
The through hole that a buttock line end of surface helix coil 02 is welded to each other.
Wherein, through hole is offered in magnetic core, it is therefore an objective to save space, meanwhile, pad is surrounded by planar sheet magnetic core 01,
Pad can effectively be protected, it is to avoid the planar spiral winding 02 of each layer disconnects.
Further, in above-mentioned laminated type film inductor, a buttock line of the multiple planar spiral winding 02
End is welded to each other by tin cream.
It is pointed out that when prepared by planar spiral winding 02, buttock line end will be played and stay in center, it is easy to and upper one
The buttock line end of rising positioned at center of the planar spiral winding 02 of layer is attached, and connected mode includes but is not limited to enter using tin cream
Row welding, can also be attached, in protection domain by other means.
On the basis of above-mentioned laminated type film inductor, also including metal terminal 03, the metal terminal 03 is offered
The groove of the multiple planar spiral inductor being layering of clamping.
Wherein, as shown in figure 3, metal terminal 03 is carried out the planar spiral inductor being layering as device bonding pad
Parcel.
Further, in above-mentioned laminated type film inductor, the bottom surface of the groove on the metal terminal 03 with
It is close to the side of the multiple planar spiral inductor being layering.
On the basis of above-mentioned laminated type film inductor, the planar sheet magnetic core is soft magnetism material magnetic core.
Wherein, soft magnetic ferrite includes soft magnetic metal and nonmetallic soft magnetism.Soft magnetic metal includes ferrocart core, iron aluminum silicon powder
Core, high magnetic flux powder core (High Flux), permalloy powder core (MPP) or silicon steel sheet, permalloy, amorphous and nanocrystalline
Alloy.Common nonmetallic soft magnetism includes the soft magnetic ferrites such as NiZn FERRITE COREs, MnZn ferrites, NiMnZn ferrites.
Therefore, magnetic core material is selected as the case may be, in protection domain.
Each embodiment is described by the way of progressive in this specification, and what each embodiment was stressed is and other
The difference of embodiment, between each embodiment identical similar portion mutually referring to.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or new using this practicality
Type.Various modifications to these embodiments will be apparent for those skilled in the art, determine herein
The General Principle of justice can in other embodiments be realized in the case where spirit or scope of the present utility model are not departed from.Cause
This, the utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The most wide scope consistent with features of novelty.
Claims (7)
1. a kind of laminated type film inductor, it is characterised in that including the planar spiral inductor that multiple is layering is described flat
Surface helix inductor includes planar sheet magnetic core and the planar spiral winding being sheathed in the sheet magnetic core, multiple described flat
The buttock line end of rising of surface helix coil is connected with each other.
2. laminated type film inductor as claimed in claim 1, it is characterised in that the planar spiral inductor is plane square
Shape spiral inductor, the planar sheet magnetic core is planar rectangular sheet magnetic core.
3. laminated type film inductor as claimed in claim 2, it is characterised in that the planar spiral inductor is provided with use
The through hole that buttock line end is welded to each other in the planar spiral winding.
4. laminated type film inductor as claimed in claim 3, it is characterised in that the multiple planar spiral winding
Buttock line end is played to be welded to each other by tin cream.
5. the laminated type film inductor as described in any one of Claims 1-4, it is characterised in that also including metal terminal, institute
State the groove that metal terminal offers the multiple planar spiral inductor being layering of clamping.
6. laminated type film inductor as claimed in claim 5, it is characterised in that the groove on the metal terminal
It is close to the side of the multiple planar spiral inductor being layering bottom surface.
7. laminated type film inductor as claimed in claim 6, it is characterised in that the planar sheet magnetic core is soft magnetism material
Magnetic core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621415562.3U CN206271494U (en) | 2016-12-21 | 2016-12-21 | A kind of laminated type film inductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621415562.3U CN206271494U (en) | 2016-12-21 | 2016-12-21 | A kind of laminated type film inductor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206271494U true CN206271494U (en) | 2017-06-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621415562.3U Expired - Fee Related CN206271494U (en) | 2016-12-21 | 2016-12-21 | A kind of laminated type film inductor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206271494U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108226825A (en) * | 2018-01-08 | 2018-06-29 | 上海交通大学 | A kind of soft magnetic film planar coil compound magnetic sensor and preparation method thereof |
| CN110676017A (en) * | 2019-09-24 | 2020-01-10 | 中广核中科海维科技发展有限公司 | High-frequency high-voltage high-power transformer |
| CN112735763A (en) * | 2020-11-30 | 2021-04-30 | 纵目科技（上海）股份有限公司 | Spliced magnetic core and wireless charging transceiving coil |
-
2016
- 2016-12-21 CN CN201621415562.3U patent/CN206271494U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108226825A (en) * | 2018-01-08 | 2018-06-29 | 上海交通大学 | A kind of soft magnetic film planar coil compound magnetic sensor and preparation method thereof |
| CN108226825B (en) * | 2018-01-08 | 2020-03-24 | 上海交通大学 | Soft magnetic film planar coil composite magnetic sensor and preparation method thereof |
| CN110676017A (en) * | 2019-09-24 | 2020-01-10 | 中广核中科海维科技发展有限公司 | High-frequency high-voltage high-power transformer |
| CN112735763A (en) * | 2020-11-30 | 2021-04-30 | 纵目科技（上海）股份有限公司 | Spliced magnetic core and wireless charging transceiving coil |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170620 |