CN106910609A - Inductor fabrication approach and inductor - Google Patents
Inductor fabrication approach and inductor Download PDFInfo
- Publication number
- CN106910609A CN106910609A CN201710104094.0A CN201710104094A CN106910609A CN 106910609 A CN106910609 A CN 106910609A CN 201710104094 A CN201710104094 A CN 201710104094A CN 106910609 A CN106910609 A CN 106910609A
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- magnetic core
- inductor
- base
- insulating tape
- post
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- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Coils Or Transformers For Communication (AREA)
Abstract
The present invention provides a kind of inductor fabrication approach, including following：Wire is wound on turns into inductance coil on the magnetic core post for be coated with the first insulating tape, the second insulating tape for reinforcing inductance coil is wound outside inductance coil；Two insulation clamps are inserted in the outside for being coated with the inductance coil of the second insulating tape；One the 3rd insulating tape is pasted respectively in magnetic core post both sides；To post in the inductance coil magnetic core of the insertion with annular frame structure of the 3rd insulating tape；Magnetic core is fixed on base；The terminal of wire is drawn and be soldered in the signal pins of the base from the coil；The inductor paint-dipping drying that upper step is obtained.The present invention also provides a kind of inductor.Inductor fabrication approach provided in an embodiment of the present invention can provide the production efficiency of inductor.
Description
Technical field
The present invention relates to a kind of inductor and the manufacture method of inductor.
Background technology
Inductor is the element that electric energy can be converted into magnetic energy and be stored, and with filtering, suppresses immediate current, drop
Various functional characteristics such as low EMI noises and power conversion, therefore it is widely used in electronic circuit field, such as vibration, tuning, coupling
In the circuits such as conjunction, filtering, delay and deflection.The manufacture of common inductor is to wind around shape on toroidal core using wire
Into coil, the through hole that magnetic core is surrounded is passed repeatedly through because wire is more long, in winding process, because the limitation of core structure, around
System needs staff to have been manually done, and manual coiling is cumbersome time-consuming, and the process of coiling easily causes the damage of wire, operation
Quality influence of the individual difference and qualification of workman on product is also larger.Therefore, the preparation method life of traditional inductor
Product is less efficient, and product quality cannot be guaranteed.
The content of the invention
In view of this, it is necessary to provide a kind of inductor fabrication approach that can effectively improve production efficiency and by the party
The inductor of method manufacture.
Embodiments of the invention provide a kind of preparation method of inductor, including：
Wire is wound on turns into inductance coil on the magnetic core post for be coated with the first insulating tape, use is wound outside inductance coil
In the second insulating tape for reinforcing inductance coil；
Two insulation clamps are inserted in the outside for being coated with the inductance coil of the second insulating tape；
One the 3rd insulating tape is pasted respectively in magnetic core post both sides；
To post in the inductance coil magnetic core of the insertion with annular frame structure of the 3rd insulating tape；
Magnetic core is fixed on base；
The terminal of wire is drawn and be soldered in the signal pins of the base from the coil；
The inductor paint-dipping drying that upper step is obtained.
Preferably, first insulating tape is the Kapton Tape of more than 280 degree of heatproof；And/or
3rd insulating tape is the Kapton Tape of more than 280 degree of heatproof.
Preferably, polyester tape of second insulating tape for 130 degree of heatproof, and/or
The insulation clamp is manufactured by reinforcing glass fiber.
Preferably, the wire include at least one, it is per share including an at least wires.
Preferably, per wires be coated by polyester imine resin form, thermal level for 180 degree enamel covered wire, aluminum steel
Or copper-clad aluminum conductor.
Preferably, the top center of the base is provided with the groove for housing magnetic core, the signal pins are located at described
Base periphery, the signal pins include a lead arm and an installing arm vertical with the lead arm, and the installing arm is from institute
The plane perpendicular for stating base stretches out.
Preferably, being additionally provided with installation pin on the base, the base periphery is additionally provided with some downward opening U-shaped
Locating part.
Preferably, the magnetic core includes some magnetic core units fitted side by side.
Preferably, the magnetic core post is integral type or segmentation structure, when the magnetic core post is segmentation structure, it is located at
Two sections of magnetic core posts at magnetic core post two ends are semi-cylindrical.
Embodiments of the invention also provide a kind of inductor, including magnetic core, coil, the inductor also include a base and
One magnetic core post, one end of the magnetic core is fixed on the base, and the magnetic core post is located in the magnetic core, the coil winding
In on the magnetic core post, insulating barrier is provided between the coil and the magnetic core post and magnetic core.
The manufacture method of inductor provided in an embodiment of the present invention, inductor no longer uses traditional ring core structure,
But using the core structure of split, the first coiling inductance coil on linear magnetic core post, it is possible to use automatic coil winding machine enters
Row coiling, then the magnetic core post of inductance coil will be wound be placed in magnetic core.Compared to the mode of traditional coiling, the present invention is real
The method for applying example improves winding efficiency.And machine coiling can avoid individual difference, the quality of product is set to be guaranteed.
Brief description of the drawings
In accompanying drawing：
Fig. 1 shows the flow chart of the manufacture method of the inductor of one embodiment of the invention.
Fig. 2 shows the three-dimensional exploded view of the inductor of one embodiment of the invention.
Fig. 3 shows a kind of schematic diagram of implementation method that magnetic core post shown in Fig. 2 is segmentation structure.
Fig. 4 shows the stereogram of the inductor of one embodiment of the invention.
Main element symbol description
Following specific embodiment will further illustrate the present invention with reference to above-mentioned accompanying drawing.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.It is appreciated that accompanying drawing is only provided used with reference to explanation, not for this hair
It is bright to be any limitation as.The size shown in accompanying drawing is only to be described for ease of clear, and does not limit proportionate relationship.
It should be noted that when a component is considered as " connection " another component, it can be directly to separately
One component may be simultaneously present component placed in the middle.Unless otherwise defined, all of technology used herein and section are academic
Language is identical with the implication that those skilled in the art of the invention are generally understood that is belonged to.Herein in the description of the invention
The term for being used is intended merely to describe the purpose of specific embodiment, it is not intended that in the limitation present invention.
Fig. 1 and Fig. 2 is refer to, the manufacture method of the inductor 100 of one embodiment of the invention is comprised the following steps：
S1, wire 11 is wound on to be coated with turns into inductance coil 10 on the magnetic core post 20 of the first insulating tape 12, in inductance
The second insulating tape 18 for reinforcing the inductance coil 10 is wound outside coil 10.
Specifically, in present embodiment, ferrite of the magnetic core post 20 by curie point more than 200 degree is made, the magnetic
The cross sectional shape of stem 20 is track type, and in other embodiment, the magnetic core post 20 can also be by other materials such as neodymium iron boron etc.
It is made, the cross sectional shape of the magnetic core post 20 can be rectangle, circle, ellipse or other shapes.
Because magnetic core post 20 is linear pattern, without perforation during around 20 coiling of magnetic core post, it is possible to use automatic
Coil winding machine carries out coiling around the magnetic core post 20 for being coated with the first insulating tape 12, and automatic coil winding machine winding efficiency is high, automatic complete
Into winding displacement, the coiling for being more suitable for batches of inductance coil compared to traditional manual coiling is processed.The wire 11 can
Think a wires, or multiply and around structure, per share to may include one or more metal wire, the metal wire example
Such as can be copper cash, aluminum steel or copper-clad aluminum conductor.In present embodiment, the wire 11 is per share including 50 gold including two strands
Category line (not shown).The metal wire use coated by polyester imine resin form, thermal level is the enamel covered wire of 180 degree.
First insulating tape 12 is scratch resistant adhesive tape, can select the Kapton Tape of more than 280 degree of heatproof.Other
In implementation method, first insulating tape 12 can also be polyester tape.
Second insulating tape 18 is wound in inductance coil 10 described in inductance coil outer wrapping, for reinforcing the inductance
Coil 10, prevent inductance coil 10 from releasing, it is ensured that the compacted mass of inductance coil 10 is set around on magnetic core post 20.Present embodiment
In, second insulating tape 18 can be polyester tape of the heatproof higher than 130 degree.
S2, two insulation clamps 16 are inserted in the outside for being coated with the inductance coil 10 of the second insulating tape 18.
Specifically, the insulation clamp 16 can be made of plastics, the model of the plastics can be FR530, humidity index 155
DEG C, in other embodiment, the insulation clamp 16 can also be manufactured by reinforcing glass fiber.The insulation clamp 16 is U-shaped,
The side plate 162 vertically extended including base plate 161 and by the both sides of base plate 161, the width of the base plate 161 substantially with the inductance
The width of coil 10 is equal.
S3, one the 3rd insulating tape 19 is pasted in the both sides of magnetic core post 20 respectively.
Specifically, in present embodiment, the 3rd insulating tape 19 can select the polyimides of more than 280 degree of heatproof
Adhesive tape.In other embodiment, the 3rd insulating tape 19 can also be polyester tape.3rd insulating tape is used to wrap
Cover the end face of magnetic core post 20 and the side of inductance coil 10.
S4, inductance coil 10 is inserted in the magnetic core 30 with annular frame structure.
Specifically, the magnetic core 30 can be made by iron silicon materials, in other embodiment, the magnetic core 30 can also be by iron-based
Non- crystalline flour, iron powder, aerosolization iron aluminum silicon powder or other materials make.The magnetic core 30 can be integral type structure, or point
Body formula structure, when being split-type structural, it may include two or more magnetic core units 32, the magnetic core unit 32 has annular frame
Structure, such as rectangle, each magnetic core unit 32 have a predetermined power, and in present embodiment, the magnetic core 30 includes 3 magnetic core lists
Unit 32.The opening of 3 magnetic core units 32 just to, fit side by side, make magnetic core 30 also have annular frame structure.It is of the invention real
The manufacture method for applying the inductor of example can be according to the magnetic core list used in the power selection magnetic core 30 of the inductor to be made
The quantity of unit 32, for the production and manufacture of inductor provide elasticity selection, according to different demands without redesigning inductance again
Device, saves the design and manufacturing time of inductor.It will be understood by those skilled in the art that the width W1 of the magnetic core post 20 with
The A/F W3 adaptations of the magnetic core unit 32, height H1 and institute of the inductance coil 10 between described two insulation clamps 16
The height H3 for stating the opening of magnetic core unit 32 is adapted, and the length L1 (refer to Fig. 3) of the magnetic core post 20 sets side by side with described
The thickness sum of the magnetic core unit 32 put is adapted.Those skilled in the art are further appreciated that the magnetic core post 20 can also be
Segmental structure, each section of thickness of magnetic core post is suitable with the thickness of the magnetic core unit 32, can be according to the inductance to be made
The quantity of the magnetic core unit 32 used in device uses the magnetic core post of respective amount section.And, during using multistage magnetic core post, Ke Yiduo
Section magnetic core post is cuboid, it is also possible to which the magnetic core post of interlude is cuboid, and the magnetic core post at two ends is semicylinder, and is made whole
The magnetic core post of body is in racetrack or ellipse.
S5, magnetic core 30 is fixed on base 40.
Specifically, it is possible to use be fixed to magnetic core 30 on base 40 by glue or other fixed structures.
The base 40 can be made of plastics, and the model of the plastics can be FR530,155 DEG C of humidity index.The base
40 top centers are provided with the groove 42 for housing the end of magnetic core 30, signal pins 44 are additionally provided with the base 40 and installation is drawn
Pin 46.In present embodiment, the signal pins 44 are four, located at the corner of the base 40, in other embodiment, and institute
The quantity for stating signal pins can be other values, such as 2,6 according to design needs.The signal pins 44 include a lead
The installing arm 442 vertical with the lead arm 441 of arm 441 and.The installing arm 442 extends perpendicularly out the bottom of the base 40
Face, in the telltale hole for inserting the device such as circuit board of installing the inductor, the lead arm 441 to stretch out the one of base 40
Side.It is described that the bottom surface that pin 46 also extends perpendicularly out the base 40 is installed, in the mounting hole for inserting circuit board, with firmly
Inductor 100 is fixedly installed on circuit board.The top perimeter of the base 40 is additionally provided with downward opening U-shaped locating part
43。
S6, the terminal of wire 11 is drawn from the inductance coil 10 and is soldered to the signal pins 44 of the base 40
On.
Specifically, the wire 11 may have necessarily from after the extraction of the inductance coil 10 with the signal pins 44 that need to be connected
Distance, (can refer to Fig. 4), then enter by scolding tin through the opening of locating part 43 by lead-out wire further around on lead arm 441
Row welding, the locating part 43 can constrain the trend of lead-out wire, and be tensioned lead-out wire, can effectively realize the folder to wire 11
Hold with it is spacing, can also make the cabling of wire 11 attractive in appearance, it is solid and reliable, it is easy to arrange.After wire 11 is drawn from inductance coil 10
When the distance of the extremely signal pins 44 is more long, insulating sleeve can also be arranged on lead-out wire to prevent lead-out wire and magnetic core 30
Short circuit.
S7, by inductor paint-dipping drying.
Specifically, the outside of the magnetic core and inductance coil is coated on using the high-temp glue of high-temp glue such as high temperature resistant 180 degree,
Further fasten inductor and inductor is protected.
The manufacture method of inductor provided in an embodiment of the present invention, inductor no longer uses traditional ring core structure,
But using the core structure of split, the first coiling inductance coil 10 on linear magnetic core post 20, it is possible to use automatic winding
Machine carries out coiling, then will be wound with the magnetic core post of inductance coil 10 and be placed in magnetic core 30.The manufacturing man-hours of traditional inductor generally needs
400 seconds are wanted, is shorten to 120 seconds using the manufacturing man-hours of manufacture method inductor of the invention, compared to traditional coiling
Mode, the method for the embodiment of the present invention improves winding efficiency.And machine coiling can avoid individual difference, make product
Quality be guaranteed.
It is the structure chart of the inductor 100 made using inductor fabrication approach of the invention, institute please also refer to Fig. 4
Stating inductor 100 includes base 40, the magnetic core 30 being fixedly installed on base 40 and the magnetic core post 20 in magnetic core 30, described
Inductance coil 10 is wound on magnetic core post 20, the first insulating tape 12 is provided between the magnetic core post 20 and inductance coil 10 to be carried out absolutely
Edge.The inductance coil 10 is outer to be carried out by the second insulating tape 18, the insulation insulating tape 19 of clamp 16 and the 3rd with magnetic core 30
Insulation.The cross sectional shape of the magnetic core post 20 can be track type, rectangle, circle, ellipse or other shapes.The magnetic core post
20 can also be integral type structure or multi-segment structure, during using multi-segment structure, can be cuboid with multistage magnetic core post,
Can be with the magnetic core post of interlude as cuboid, the magnetic core post at two ends is semicylinder.The magnetic core 30 can also be integral type knot
Structure or segmentation structure, can choose the quantity of the magnetic core unit 32 that inductor includes according to the power of inductor.The inductance
Insulating tape or insulation clamp that insulating materials is made are provided between coil 10 and magnetic core post 20 and magnetic core 30, can effectively be prevented
Because wire damages the short-circuit conditions being likely to result in.
The base 40 can facilitate inductor to be installed on circuit board, and the top center of the base 40 is provided with for housing
The groove 42 of the end of magnetic core 30, is additionally provided with signal pins 44 and installs pin 46 on the base 40.The signal pins 44 are wrapped
Include a lead arm 441 and an installing arm 442 vertical with the lead arm 441.The installing arm 442 extends perpendicularly out the base
40 bottom surface, in the telltale hole for inserting the device such as circuit board of installing the inductor, the lead arm 441 to stretch out base
40 side.It is described that the bottom surface that pin 46 also stretches out the base 40 is installed, in the mounting hole for inserting circuit board, with firm
Be fixedly installed in inductor 100 on circuit board by ground.The top perimeter of the base 40 is additionally provided with downward opening U-shaped spacing
Part 43, can be carried out spacing to lead-out wire.The lead-out wire is welded in signal pins 44.
The manufacture method of inductor provided in an embodiment of the present invention can have the same performance of traditional inductor, Er Qieneng
The manufacture efficiency of inductor is improved, is particularly suitable for large-scale production.
" one kind ", " described " of singulative used in embodiment of the present invention and appended claims and
" being somebody's turn to do " is also intended to include most forms, unless context clearly shows that other implications.It is also understood that art used herein
Language "and/or" refers to that may be combined comprising one or more associated any or all of project listed.Term " first ",
" second " is only used for the purpose of description, and it is not intended that indicating or implying relative importance.In the description of this specification, art
The description of language " other embodiment ", " the present embodiment " etc. means to combine specific features, structure, the material that the embodiment or example are described
Material or feature are contained at least one embodiment of the invention or example.In this manual, to the schematic of above-mentioned term
Statement is not necessarily referring to identical embodiment or example.And, the specific features of description, structure, material or feature can be
Combined in an appropriate manner in one or more any embodiments or example.
Presently preferred embodiments of the present invention is the foregoing is only, is not intended to limit the invention, it is all in essence of the invention
Any modification, equivalent and improvement made within god and principle etc., should be included within the scope of the present invention.
Claims (10)
1. a kind of inductor fabrication approach, it is characterised in that comprise the following steps：
Wire is wound on turns into inductance coil on the magnetic core post for be coated with the first insulating tape, wound outside inductance coil for adding
Gu the second insulating tape of inductance coil；
Two insulation clamps are inserted in the outside for being coated with the inductance coil of the second insulating tape；
One the 3rd insulating tape is pasted respectively in magnetic core post both sides；
To post in the inductance coil magnetic core of the insertion with annular frame structure of the 3rd insulating tape；
Magnetic core is fixed on base；
The terminal of wire is drawn and be soldered in the signal pins of the base from the coil；
The inductor paint-dipping drying that upper step is obtained.
2. inductor fabrication approach as claimed in claim 1, it is characterised in that first insulating tape is 280 degree of heatproof
Kapton Tape above；And/or
3rd insulating tape is the Kapton Tape of more than 280 degree of heatproof.
3. inductor fabrication approach as claimed in claim 1, it is characterised in that second insulating tape is 130 degree of heatproof
Polyester tape, and/or
The insulation clamp is manufactured by reinforcing glass fiber.
4. inductor fabrication approach as claimed in claim 1, it is characterised in that the wire include at least one, per share bag
Include an at least wires.
5. inductor fabrication approach as claimed in claim 4, it is characterised in that applied by polyester imine resin per wires
System is formed, thermal level is 180 degree enamel covered wire, aluminum steel or copper-clad aluminum conductor.
6. inductor fabrication approach as claimed in claim 1, it is characterised in that the top center of the base is provided with for holding
Put the groove of magnetic core, the signal pins are located at the base periphery, the signal pins include a lead arm and one with it is described
The vertical installing arm of lead arm, the installing arm is stretched out from the plane perpendicular of the base.
7. inductor fabrication approach as claimed in claim 6, it is characterised in that installation pin, institute are additionally provided with the base
State base periphery and be additionally provided with some downward opening U-shaped locating parts.
8. inductor fabrication approach as claimed in claim 1, it is characterised in that the magnetic core includes some magnetic fitted side by side
Core unit.
9. inductor fabrication approach as claimed in claim 1, it is characterised in that the magnetic core post is integral type or segmented knot
Structure, when the magnetic core post is segmentation structure, two sections of magnetic core posts positioned at magnetic core post two ends are semi-cylindrical.
10. a kind of inductor, including magnetic core, coil, it is characterised in that the inductor also includes a base and a magnetic core post,
One end of the magnetic core is fixed on the base, and the magnetic core post is located in the magnetic core, and the coil winding is in the magnetic
On stem, insulating barrier is provided between the coil and the magnetic core post and magnetic core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710104094.0A CN106910609B (en) | 2017-02-24 | 2017-02-24 | Inductor fabrication approach and inductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710104094.0A CN106910609B (en) | 2017-02-24 | 2017-02-24 | Inductor fabrication approach and inductor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106910609A true CN106910609A (en) | 2017-06-30 |
| CN106910609B CN106910609B (en) | 2019-02-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710104094.0A Active CN106910609B (en) | 2017-02-24 | 2017-02-24 | Inductor fabrication approach and inductor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111034136A (en) * | 2017-08-21 | 2020-04-17 | 华为技术有限公司 | Inductor structure and manufacturing method thereof |
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| CN203013486U (en) * | 2012-11-20 | 2013-06-19 | 绵阳普思电子有限公司 | Micro flyback transformer |
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| CN104377023A (en) * | 2014-11-27 | 2015-02-25 | 广州金升阳科技有限公司 | Current transformer |
| CN205828044U (en) * | 2016-09-30 | 2016-12-21 | 青岛云路新能源科技有限公司 | Mixed magnetic circuit inducer |
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| CN101552090A (en) * | 2008-12-15 | 2009-10-07 | 珠海科德电子有限公司 | High power density low-loss EV type inductor |
| CN202615984U (en) * | 2012-07-10 | 2012-12-19 | 成都驰驭电子科技有限公司 | Common-mode vertical inductor |
| CN203013486U (en) * | 2012-11-20 | 2013-06-19 | 绵阳普思电子有限公司 | Micro flyback transformer |
| CN203787245U (en) * | 2014-04-21 | 2014-08-20 | 广东易事特电源股份有限公司 | Improved UPS (uninterruptible power supply) inductor |
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| CN111034136A (en) * | 2017-08-21 | 2020-04-17 | 华为技术有限公司 | Inductor structure and manufacturing method thereof |
| CN111034136B (en) * | 2017-08-21 | 2021-04-20 | 华为技术有限公司 | Inductor structure and manufacturing method thereof |
| US11621122B2 (en) | 2017-08-21 | 2023-04-04 | Huawei Technologies Co., Ltd. | Inductor structure and fabricating method thereof |
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| Publication number | Publication date |
|---|---|
| CN106910609B (en) | 2019-02-01 |
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