CN107195425A - " Taiji " type silica gel graphene smoothing choke and preparation method thereof - Google Patents
" Taiji " type silica gel graphene smoothing choke and preparation method thereof Download PDFInfo
- Publication number
- CN107195425A CN107195425A CN201710400502.7A CN201710400502A CN107195425A CN 107195425 A CN107195425 A CN 107195425A CN 201710400502 A CN201710400502 A CN 201710400502A CN 107195425 A CN107195425 A CN 107195425A
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- silica gel
- circular coil
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title claims abstract description 75
- 239000000741 silica gel Substances 0.000 title claims abstract description 75
- 229910002027 silica gel Inorganic materials 0.000 title claims abstract description 75
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 28
- 229910021389 graphene Inorganic materials 0.000 title claims abstract description 28
- 238000009499 grossing Methods 0.000 title claims abstract description 20
- 238000002360 preparation method Methods 0.000 title claims abstract description 17
- 239000000463 material Substances 0.000 claims abstract description 43
- 238000001914 filtration Methods 0.000 claims abstract description 41
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 10
- 239000000203 mixture Substances 0.000 claims abstract 2
- 229910001338 liquidmetal Inorganic materials 0.000 claims description 30
- 239000003795 chemical substances by application Substances 0.000 claims description 21
- 239000007788 liquid Substances 0.000 claims description 16
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 229910000976 Electrical steel Inorganic materials 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000004804 winding Methods 0.000 description 5
- 238000005859 coupling reaction Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005538 encapsulation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001808 coupling effect Effects 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- -1 graphite Alkene Chemical class 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000010415 tropism Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F17/00—Fixed inductances of the signal type
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/22—Sheathing; Armouring; Screening; Applying other protective layers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/2823—Wires
- H01F27/2828—Construction of conductive connections, of leads
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F17/00—Fixed inductances of the signal type
- H01F2017/0093—Common mode choke coil
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Carbon And Carbon Compounds (AREA)
- Silicon Compounds (AREA)
Abstract
The present invention discloses a kind of " Taiji " type silica gel graphene smoothing choke and preparation method thereof, and the choke coil includes multigroup circular coil, " S " type coil, positive pole pin and negative pin；" S " type coil one end is connected with first group of circular coil, " S " the type coil other end is connected with second group of circular coil, first group of circular coil is connected with the 3rd group of circular coil, second group of circular coil is connected with the 4th group of circular coil, it is sequentially connected, M groups circular coil is connected with M+2 group circular coils, and M+1 groups circular coil is connected with M+3 group circular coils, M >=3；M+2 groups circular coil is connected with positive pole pin, and M+3 group circular coils are connected with negative pin；First group of circular coil is identical to M+3 group circular coil radiuses, and parallel arrangement formation tubulose choke structure successively；The choke coil of multigroup circular coil and " S " type coil composition is closed by single line material circle to be formed, and wire surface is uniformly coated with silica gel wave filtering layer.
Description
Technical field
The present invention relates to graphene applied technical field, more particularly to a kind of " Taiji " type silica gel graphene smoothing choke and
Its preparation method.
Background technology
The application of graphene has been global concern, but for the research of graphene, also in the starting stage.Graphene
It is the two-dimentional new material for having very much speciality, however it is main in the majority in material addition in the application of this new material, to develop
Deeper and material with feature direction are only the direction of scientific and technological progress, and this requires that band function must be produced on raw material
The material of characteristic.
Choke coil filtering application more than 100 years on, span threeth century, traditional way, choke coil filtering group
Part be using coil winding on silicon steel sheet, do autocoupling type filtering, but the magnetic field self coupling mode that silicon steel sheet is made, only north and south
To formula magnetization self coupling reaction, east-west direction does not shield completely to be closed, and more or less all shows leakage field phenomenon.So, Ya Tian sections
Skill is going progress gapless coil screen to close using liquid metal potted coil.Liquid metal is liquid, can seamlessly be encapsulated whole
, not as silicon steel sheet has leakage field situation, there is energy loss phenomenon in individual coil.
The content of the invention
For weak point present in above-mentioned technology, a kind of filtering speed of present invention offer is fast, the " Taiji " type of efficiency high
Silica gel graphene smoothing choke and preparation method thereof.
In order to achieve the above object, a kind of " Taiji " type silica gel graphene smoothing choke of the invention, including multigroup round wire
Circle, " S " type coil, positive pole pin and negative pin；Described " S " type coil one end is connected with first group of circular coil, institute
State " S " the type coil other end with second group of circular coil to be connected, first group of circular coil and the 3rd group of circular coil phase
Even, second group of circular coil is connected with the 4th group of circular coil, is sequentially connected, and M groups circular coil and M+2 groups are circular
Coil is connected, and M+1 groups circular coil is connected with M+3 group circular coils, M >=3；The M+2 groups circular coil and positive pole
Pin is connected, and the M+3 group circular coils are connected with negative pin；First group of circular coil is to M+3 group round wires
Enclose radius identical, and parallel arrangement formation tubulose choke structure successively；What multigroup circular coil and " S " type coil were constituted
Choke coil is closed by single line material circle and formed, and the wire surface is uniformly coated with silica gel wave filtering layer.
Wherein, the silica gel wave filtering layer is calculated as mass fraction, including following component：
The functional agent for expecting to mix by grapheme material and silica gel A；
Expect to mix by liquid metal solution and silica gel B standby dose；
The silica gel A material are silica gel liquid, and the silica gel B material are curing agent.
Wherein, in the functional agent, the mass fraction of grapheme material accounts for the 1% ~ 10% of gross mass, the quality of silica gel A liquid
Fraction accounts for the 90% ~ 99% of gross mass.
Wherein, in described standby dose, the mass fraction of liquid metal solution accounts for the 1% ~ 20% of gross mass, the matter of silica gel B liquid
Amount fraction accounts for the 80% ~ 99% of gross mass.
Wherein, the liquid metal is the liquid metal based on iron ion model, and the grapheme material is function
Property grapheme material.
A kind of preparation method of " Taiji " type silica gel graphene smoothing choke of the present invention, comprises the following steps：
S1, " S " type coil coiling：Wire rod centre position is wound into " S " type, and by " S " type both sides be divided into Part I and
Part II；
S2, Part I circle around：By the metal loop of Part I around multi-turn formation first group of circular coil, the 3rd group of round wire
Enclose M groups circular coil and M+2 group circular coils；
S3, Part II circle around：By the metal loop of Part II around multi-turn formation second group of circular coil, the 4th group of round wire
Enclose M+1 groups circular coil and M+3 group circular coils；
S4, Part I intersect with Part II：Second group of circular coil is clamped in first group of circular coil and the 3rd group circular
Between coil, the 3rd group of circular coil is clamped between second group of circular coil and the 4th group of circular coil, M+1 group round wires
Circle is clamped between M groups circular coil and M+2 group circular coils；
S5, both positive and negative polarity are drawn：M+2 groups circular coil draws positive pole pin, and M+3 groups circular coil draws negative pin.
Wherein, the wire rod for making choke coil carries out silica gel wave filtering layer coating procedure before coiling；Silica gel wave filtering layer silica gel is filtered
Ripple layer includes the functional agent mixed by grapheme material with silica gel A material and mixed by liquid metal solution with silica gel B material
Standby dose.
Wherein, silica gel wave filtering layer preparation process comprises the following steps：
A1, function equipment agent：The grapheme material and mass fraction that mass fraction is accounted for into gross mass 1% ~ 10% account for gross mass 90%
~ 99% silica gel A liquid is sufficiently mixed, and forms functional agent；
A2, standby dose of preparation：The liquid metal solution and mass fraction that mass fraction is accounted for into gross mass 1% ~ 20% account for gross mass
80% ~ 99% silica gel B liquid is sufficiently mixed, and forms standby dose；
A3, functional agent carried out with standby dose mixing cured to be encapsulated in wire rod outer surface.
Wherein, the liquid metal used in A1 is the liquid metal based on iron ion model, and grapheme material is
Feature grapheme material.
The beneficial effects of the invention are as follows：
Compared with prior art, choke coil of the invention has been abandoned using coil winding on silicon steel sheet, does autocoupling type filtering
Method, directly carries out comprehensive gapless encapsulation using silica gel wave filtering layer, and because self coupling is strengthened, electric energy loss is very small, from
And reach speed increase, sensitive effect.This multigroup circular coil of choke coil is as outer ring, and " S " type coil is in
Between line of demarcation, the taiji schemata with Chinese Taoist culture is quite similar, therefore is named as " Taiji " type choke coil.This structure is self coupling
Property structure, it is possible to decrease internal resistance, speed are exceedingly fast and without any delay.Therefore any circuit purposes can be adapted to, due to adding
Silica gel wave filtering layer, the present invention is adapted to various forms of direct currents and alternating current and used.Silica gel wave filtering layer is the encapsulation of comprehensive formula,
In filtering, more than 95% energy loss is reduced than silicon steel sheet filtering, application effect is very good.
Brief description of the drawings
Fig. 1 is the overlooking the structure diagram of " Taiji " type silica gel graphene smoothing choke of the present invention；
Fig. 2 is the main structure diagram of " Taiji " type silica gel graphene smoothing choke of the present invention.
Main element symbol description is as follows：
10th, circular coil 11, " S " type coils
12nd, positive pole pin 13, negative pin.
Embodiment
In order to more clearly state the present invention, the present invention is further described below in conjunction with the accompanying drawings.
Refering to Fig. 1-2, a kind of " Taiji " type silica gel graphene smoothing choke of the invention, including multigroup circular coil 10,
" S " type coil 11, positive pole pin 12 and negative pin 13；The one end of " S " type coil 11 is connected with first group of circular coil 10,
The other end of " S " type coil 11 is connected with second group of circular coil 10, first group of circular coil 10 and the 3rd group of phase of circular coil 10
Even, second group of circular coil 10 is connected with the 4th group of circular coil 10, is sequentially connected, and M groups circular coil 10 and M+2 groups are justified
Shape coil 10 is connected, and M+1 groups circular coil 10 is connected with M+3 groups circular coil 10, M >=3；M+2 groups circular coil 10
It is connected with positive pole pin 12, M+3 groups circular coil 10 is connected with negative pin 13；First group of circular coil 10 is to M+3 groups
The radius of circular coil 10 is identical, and parallel arrangement formation tubulose choke structure successively；Multigroup circular coil 10 and " S " type
The choke coil that coil 11 is constituted is closed by single line material circle and formed, and wire surface is uniformly coated with silica gel wave filtering layer.
In the present embodiment, silica gel wave filtering layer is calculated as mass fraction, including following component：
The functional agent for expecting to mix by grapheme material and silica gel A；
Expect to mix by liquid metal solution and silica gel B standby dose；
Silica gel A material are silica gel liquid, and silica gel B material are curing agent.
In the present embodiment, in functional agent, the mass fraction of grapheme material accounts for the 1% ~ 10% of gross mass, silica gel A liquid
Mass fraction accounts for the 90% ~ 99% of gross mass.
In the present embodiment, in standby dose, the mass fraction of liquid metal solution accounts for the 1% ~ 20% of gross mass, silica gel B liquid
Mass fraction account for the 80% ~ 99% of gross mass.
In the present embodiment, liquid metal is the liquid metal based on iron ion model, and grapheme material is function
Property grapheme material.
A kind of preparation method of " Taiji " type silica gel graphene smoothing choke of the present invention, comprises the following steps：
S1, " 11 coiling of S " type coils：Wire rod centre position is wound into " S " type, and by " S " type both sides be divided into Part I with
And Part II；
S2, Part I circle around：By the metal loop of Part I around multi-turn formation first group of circular coil 10, the 3rd group of round wire
Enclose 10 M groups circular coils 10 and M+2 groups circular coil 10；
S3, Part II circle around：By the metal loop of Part II around multi-turn formation second group of circular coil 10, the 4th group of round wire
Enclose 10 M+1 groups circular coils 10 and M+3 groups circular coil 10；
S4, Part I intersect with Part II：Second group of circular coil 10 is clamped in first group of circular coil 10 and the 3rd group
Between circular coil 10, the 3rd group of circular coil 10 is clamped between second group of circular coil 10 and the 4th group of circular coil 10,
M+1 groups circular coil 10 is clamped between M groups circular coil 10 and M+2 groups circular coil 10；
S5, both positive and negative polarity are drawn：M+2 groups circular coil 10 draws positive pole pin 12, and M+3 groups circular coil 10 is drawn negative pole and drawn
Pin 13.
In the present embodiment, the wire rod for making choke coil carries out silica gel wave filtering layer coating procedure before coiling；Silica gel is filtered
Layer silica gel wave filtering layer includes the functional agent mixed by grapheme material and silica gel A material and by liquid metal solution and silica gel
B expects standby dose mixed.
In the present embodiment, silica gel wave filtering layer preparation process comprises the following steps：
A1, function equipment agent：The grapheme material and mass fraction that mass fraction is accounted for into gross mass 1% ~ 10% account for gross mass 90%
~ 99% silica gel A liquid is sufficiently mixed, and forms functional agent；
A2, standby dose of preparation：The liquid metal solution and mass fraction that mass fraction is accounted for into gross mass 1% ~ 20% account for gross mass
80% ~ 99% silica gel B liquid is sufficiently mixed, and forms standby dose；
A3, functional agent carried out with standby dose mixing cured to be encapsulated in wire rod outer surface.
In the present embodiment, the liquid metal used in A1 is the liquid metal based on iron ion model, graphite
Alkene material is feature grapheme material.
" Taiji " type choke coil production method of the present invention, adds graphene liquid metal making component and makees filtering purposes, this
The filtering of production method, is, in the new and breakthrough pole tropism choke coil design of initiative in 2008, to be also by Ya Tian team
Newest concept innovation winding coil in human history, can't make of machine at present, can only human hand coiling.Choke coil profit
It is to easily reach more than -35db to be filtered with liquid metal.Plus graphene and liquid metal formula, filtering can reach -70 ~
140db or more function.
The " Taiji " type choke coil of the present invention is referred to as RT formula choke coils, and reason is that the winding of this coil is that RT team is gripping
Stream encloses a quantum jump on the creation, strengthens mode using self coupling, allows filtered signal to be strengthened, and filter effect is more thorough
Bottom.Because never such winding process occurs in the world, then we just name this coil with the RT of Research Team, and Chinese is
The meaning in sub- day, RT is（Remy Technology）Write a Chinese character in simplified form.Remy Technology Technological research is comprehensive dimension around thing
The technological achievement that the scientific theory of matter electronic phase angle is researched and developed, is developed with this century in terms of electronic filtering especially.
The structure of this filtering is RT formulas, and filtering speed is high, and loss is close to zero loss, so being adapted to the filtering on many circuits
Filtering, the filtering of direct current amplifying type device, dc source filtering, transmitting signal filtering before and after purposes, such as power filter, transformation
Deng.In practice, it is especially particularly evident with source of sound filtering and video filtering effect.The choke coil can effectively obstruct high-frequency signal and do
Disturb, it is remarkable by the EMC effects that 10000G is even more than with more than 1G.Sound equipment above carry and the fidelity factor of video on carry
Rise.Switching Power Supply development is increasingly faster and more, therefore the filtering that this choke coil liquid metal and graphene are combined is very
Good application component.It is easy to use because he can be used for direct current and alternating current, therefore directional problems are not had to concern, to signal
On also function act on, so using in extensive range.
Disclosed above is only several specific embodiments of the present invention, but the present invention is not limited to this, any ability
What the technical staff in domain can think change should all fall into protection scope of the present invention.
Claims (9)
1. a kind of " Taiji " type silica gel graphene smoothing choke, it is characterised in that including multigroup circular coil, " S " type coil,
Positive pole pin and negative pin；Described " S " type coil one end is connected with first group of circular coil, and " S " type coil is another
One end is connected with second group of circular coil, and first group of circular coil is connected with the 3rd group of circular coil, second group of circle
Shape coil is connected with the 4th group of circular coil, is sequentially connected, M groups circular coil is connected with M+2 group circular coils, M+1
Group circular coil is connected with M+3 group circular coils, M >=3；The M+2 groups circular coil is connected with positive pole pin, and described
M+3 group circular coils are connected with negative pin；First group of circular coil is identical to M+3 group circular coil radiuses, and according to
Secondary parallel arrangement formation tubulose choke structure；The choke coil of multigroup circular coil and " S " type coil composition is by single line material
Circle conjunction is formed, and the wire surface is uniformly coated with silica gel wave filtering layer.
2. " Taiji " type silica gel graphene smoothing choke according to claim 1, it is characterised in that the silica gel wave filtering layer
Calculate as mass fraction, including following component：
The functional agent for expecting to mix by grapheme material and silica gel A；
Expect to mix by liquid metal solution and silica gel B standby dose；
The silica gel A material are silica gel liquid, and the silica gel B material are curing agent.
3. " Taiji " type silica gel graphene smoothing choke according to claim 2, it is characterised in that in the functional agent,
The mass fraction of grapheme material accounts for the 1% ~ 10% of gross mass, and the mass fraction of silica gel A liquid accounts for the 90% ~ 99% of gross mass.
4. " Taiji " type silica gel graphene smoothing choke according to claim 2, it is characterised in that in described standby dose,
The mass fraction of liquid metal solution accounts for the 1% ~ 20% of gross mass, and the mass fraction of silica gel B liquid accounts for the 80% ~ 99% of gross mass.
5. " Taiji " type silica gel graphene smoothing choke according to claim 2, it is characterised in that the liquid metal is
Liquid metal based on iron ion model, the grapheme material is feature grapheme material.
6. a kind of preparation method of " Taiji " type silica gel graphene smoothing choke, it is characterised in that comprise the following steps：
S1, " S " type coil coiling：Wire rod centre position is wound into " S " type, and by " S " type both sides be divided into Part I and
Part II；
S2, Part I circle around：By the metal loop of Part I around multi-turn formation first group of circular coil, the 3rd group of round wire
Enclose M groups circular coil and M+2 group circular coils；
S3, Part II circle around：By the metal loop of Part II around multi-turn formation second group of circular coil, the 4th group of round wire
Enclose M+1 groups circular coil and M+3 group circular coils；
S4, Part I intersect with Part II：Second group of circular coil is clamped in first group of circular coil and the 3rd group circular
Between coil, the 3rd group of circular coil is clamped between second group of circular coil and the 4th group of circular coil, M+1 group round wires
Circle is clamped between M groups circular coil and M+2 group circular coils；
S5, both positive and negative polarity are drawn：M+2 groups circular coil draws positive pole pin, and M+3 groups circular coil draws negative pin.
7. the preparation method of " Taiji " type silica gel graphene smoothing choke according to claim 6, it is characterised in that make
The wire rod of choke coil carries out silica gel wave filtering layer coating procedure before coiling；Silica gel wave filtering layer silica gel wave filtering layer is included by graphene material
Material and silica gel A expect the functional agent mixed and standby dose that expects to mix by liquid metal solution and silica gel B.
8. the preparation method of " Taiji " type silica gel graphene smoothing choke according to claim 7, it is characterised in that silica gel
Wave filtering layer preparation process comprises the following steps：
A1, function equipment agent：The grapheme material and mass fraction that mass fraction is accounted for into gross mass 1% ~ 10% account for gross mass 90%
~ 99% silica gel A liquid is sufficiently mixed, and forms functional agent；
A2, standby dose of preparation：The liquid metal solution and mass fraction that mass fraction is accounted for into gross mass 1% ~ 20% account for gross mass
80% ~ 99% silica gel B liquid is sufficiently mixed, and forms standby dose；
A3, functional agent carried out with standby dose mixing cured to be encapsulated in wire rod outer surface.
9. the preparation method of " Taiji " type silica gel graphene smoothing choke according to claim 8, it is characterised in that in A1
The middle liquid metal used is the liquid metal based on iron ion model, and grapheme material is feature grapheme material.
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| CN201710400502.7A CN107195425B (en) | 2017-05-31 | 2017-05-31 | " Taiji " type silica gel graphene smoothing choke and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710400502.7A CN107195425B (en) | 2017-05-31 | 2017-05-31 | " Taiji " type silica gel graphene smoothing choke and preparation method thereof |
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| CN107195425B CN107195425B (en) | 2018-11-23 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018219263A1 (en) * | 2017-05-31 | 2018-12-06 | 姚炯深 | Stepless graphene filter choke and manufacturing method thereof |
| WO2018219262A1 (en) * | 2017-05-31 | 2018-12-06 | 施振康 | Tai chi-type graphene filter choke and manufacturing method therefor |
| CN110767408A (en) * | 2019-09-29 | 2020-02-07 | 广东石成科技有限公司 | Multiphase graphene liquid metal filtering planar choke coil and preparation method thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110828139A (en) * | 2019-09-29 | 2020-02-21 | 广东石成科技有限公司 | Printed graphene liquid metal filtering planar choke coil and preparation method thereof |
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| CN102054559A (en) * | 2009-10-29 | 2011-05-11 | 乾坤科技股份有限公司 | Multiplex output choke |
| CN102308345A (en) * | 2009-02-09 | 2012-01-04 | 埃普科斯股份有限公司 | High-frequency swinging choke |
| CN103928218A (en) * | 2013-01-10 | 2014-07-16 | 乾坤科技股份有限公司 | Magnetic Device With High Saturation Current And Low Core Loss |
| CN106415747A (en) * | 2014-05-19 | 2017-02-15 | 株式会社村田制作所 | Common-mode choke coil and manufacturing method therefor |
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Patent Citations (4)
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| CN102308345A (en) * | 2009-02-09 | 2012-01-04 | 埃普科斯股份有限公司 | High-frequency swinging choke |
| CN102054559A (en) * | 2009-10-29 | 2011-05-11 | 乾坤科技股份有限公司 | Multiplex output choke |
| CN103928218A (en) * | 2013-01-10 | 2014-07-16 | 乾坤科技股份有限公司 | Magnetic Device With High Saturation Current And Low Core Loss |
| CN106415747A (en) * | 2014-05-19 | 2017-02-15 | 株式会社村田制作所 | Common-mode choke coil and manufacturing method therefor |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018219263A1 (en) * | 2017-05-31 | 2018-12-06 | 姚炯深 | Stepless graphene filter choke and manufacturing method thereof |
| WO2018219262A1 (en) * | 2017-05-31 | 2018-12-06 | 施振康 | Tai chi-type graphene filter choke and manufacturing method therefor |
| CN110767408A (en) * | 2019-09-29 | 2020-02-07 | 广东石成科技有限公司 | Multiphase graphene liquid metal filtering planar choke coil and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107195425B (en) | 2018-11-23 |
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