CN110828131A - Two-in-one differential mode inductor - Google Patents
Two-in-one differential mode inductor Download PDFInfo
- Publication number
- CN110828131A CN110828131A CN201911129999.9A CN201911129999A CN110828131A CN 110828131 A CN110828131 A CN 110828131A CN 201911129999 A CN201911129999 A CN 201911129999A CN 110828131 A CN110828131 A CN 110828131A
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- China
- Prior art keywords
- coil winding
- magnetic core
- annular magnetic
- face
- base
- 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.)
- Pending
Links
- 238000004804 winding Methods 0.000 claims abstract description 48
- 239000004593 Epoxy Substances 0.000 claims abstract description 25
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- 238000002955 isolation Methods 0.000 abstract description 2
- 239000011162 core material Substances 0.000 description 23
- 239000000463 material Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- SZVJSHCCFOBDDC-UHFFFAOYSA-N ferrosoferric oxide Chemical compound O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Images
Classifications
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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
- H01F27/255—Magnetic cores made from particles
-
- 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
- H01F27/2895—Windings disposed upon ring cores
-
- 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
- H01F27/29—Terminals; Tapping arrangements for signal inductances
-
- 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
- H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
- H01F27/306—Fastening or mounting coils or windings on core, casing or other support
-
- 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
- H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Coils Or Transformers For Communication (AREA)
Abstract
The invention relates to a two-in-one differential-mode inductor which comprises an annular magnetic core, wherein a first coil winding and a second coil winding are wound on the annular magnetic core at intervals, an epoxy baffle is connected to the circumferential end face of one end of the annular magnetic core and separates the first coil winding and the second coil winding along the radial direction of the annular magnetic core, a base is fixedly connected to the circumferential end face of the other end of the annular magnetic core, and an inductor pin is inserted into the base. The invention has compact and reasonable structure, controls the height of the coil winding by using the FR4 epoxy baffle plate in order to ensure that the height of the coil winding is 1.5mm away from the middle of the shell, and effectively isolates 2 windings so that the windings can not interfere with each other, thus avoiding the need of using an isolation plate and reducing the cost.
Description
Technical Field
The invention relates to the technical field of differential mode inductors, in particular to a two-in-one differential mode inductor.
Background
In the prior art, two differential mode inductors are required to be used on a circuit board of equipment such as an induction cooker, each differential mode inductor comprises a magnetic core wound with a coil, and the differential mode inductors are high in production and assembly cost, large in product volume and high in price.
Disclosure of Invention
The applicant aims at the defects in the prior art and provides a two-in-one differential mode inductor which is reasonable in structure, compact in structure, small in height, small in size, reliable in safety performance, low in cost and capable of being suitable for various use occasions.
The technical scheme adopted by the invention is as follows:
the utility model provides a two unification differential mode inductances, includes annular magnetic core, the interval winding has coil winding one and coil winding two on the annular magnetic core, connects an epoxy baffle on the circumference terminal surface of annular magnetic core one end, and epoxy baffle is radially separated coil winding one and coil winding two along annular magnetic core, and fixed connection base has been inserted the inductance pin on the circumference terminal surface of the annular magnetic core other end on the base.
As a further improvement of the above technical solution:
the first coil winding and the second coil winding are symmetrically arranged, and the epoxy baffle is perpendicular to the circumferential end face of the annular magnetic core.
The external diameter of base is greater than the external diameter of annular magnetic core, and the external diameter of base is 48 mm.
The distance L from the outer end face of the epoxy baffle to the outer end face of the coil winding I or the outer end face of the coil winding is 1.5mm, the distance between the outer end face of the base and the outer end face of the epoxy baffle is 25.5mm, and the distance from the inductance pin to extend out of the outer end face of the base is 3-4 mm.
And the inductance of the first coil winding and the second coil winding at the current of 10A is more than 100 uH.
The epoxy baffle adopts FR4 epoxy board.
The annular magnetic core is made of-52 iron powder magnetic rings.
The invention has the following beneficial effects:
the invention has compact and reasonable structure, controls the height by using the FR4 epoxy baffle plate in order to ensure that the height of the coil winding is 1.5mm away from the middle of the shell, effectively isolates the two coil windings from each other so as not to interfere with each other, thus avoiding the need of using an isolation plate, and greatly saving the cost because the two coil windings share one magnetic core.
The annular magnetic core adopts a-52 material iron powder core magnetic ring, the iron powder core is commonly known as ferroferric oxide which is a magnetic material, the problem of electromagnetic compatibility (EMC) in an electric appliance loop is effectively solved, the-52 material is low in price, and the inductance attenuation amplitude is small when current is superposed on two coil windings.
Drawings
Fig. 1 is a front view of the present invention.
Fig. 2 is a side view of the present invention.
Fig. 3 is a top view of the present invention.
Fig. 4 is a rear view of the present invention.
Wherein: 1. a first coil winding; 2. a second coil winding; 3. an annular magnetic core; 4. a base; 5. an epoxy baffle; 6. an inductor pin.
Detailed Description
The following describes embodiments of the present invention with reference to the drawings.
As shown in fig. 1-4, the two-in-one differential-mode inductor of the present embodiment includes an annular magnetic core 3, a first coil winding 1 and a second coil winding 2 are wound on the annular magnetic core 3 at intervals, an epoxy baffle 5 is connected to a circumferential end face of one end of the annular magnetic core 3, the epoxy baffle 5 radially separates the first coil winding 1 from the second coil winding 2 along the annular magnetic core 3, a base 4 is fixedly connected to a circumferential end face of the other end of the annular magnetic core 3, and an inductor pin 6 is inserted into the base 4.
The first coil winding 1 and the second coil winding 2 are symmetrically arranged, and the epoxy baffle 5 is perpendicular to the circumferential end face of the annular magnetic core 3.
The outer diameter of the base 4 is larger than that of the annular magnetic core 3, and the outer diameter of the base 4 is 48 mm.
The distance L from the outer end face of the epoxy baffle 5 to the outer end face of the coil winding I1 or the coil winding II 2 is 1.5mm, the distance between the outer end face of the base 4 and the outer end face of the epoxy baffle 5 is 25.5mm, and the distance from the inductance pin 6 extending out of the outer end face of the base 4 is 3-4mm, ＊
The inductance of the coil winding I1 and the coil winding II 2 at the current of 10A is more than 100 uH.
The epoxy baffle 5 is made of FR4 epoxy board.
The annular magnetic core 3 is made of-52 iron powder magnetic core rings.
On the premise of ensuring the unsaturation of the magnetic core material, the larger the inductance is, the better the filtering effect is. According to the formula L ═ AL · N2Where L is the inductance, AL is the single turn inductance of the toroidal core, N2Is the square of the number of turns of the winding;
when the inductance L and the number of winding turns N are not changed, the higher the effective magnetic conductivity mue of the iron core is, the smaller the effective sectional area Se is, the highest single-loop inductance (AL) value of a magnetic ring of the iron powder core made of the-52 material in the iron powder core with the same specification is, and the lower the attenuation of the inductance when current is superposed, so that the cost performance is very high.
The above description is intended to be illustrative and not restrictive, and the scope of the invention is defined by the appended claims, which may be modified in any manner within the scope of the invention.
Claims (7)
1. The utility model provides a two unification differential mode inductances, includes annular magnetic core (3), its characterized in that: the winding has coil winding one (1) and coil winding two (2) on annular magnetic core (3) at the interval, connects one epoxy baffle (5) on the circumference terminal surface of annular magnetic core (3) one end, and epoxy baffle (5) are radially separated coil winding one (1) and coil winding two (2) along annular magnetic core (3), and fixed connection base (4) are gone up to the circumference terminal surface of annular magnetic core (3) the other end, have inserted inductance pin (6) on base (4).
2. The two-in-one differential-mode inductor of claim 1, wherein: the coil winding I (1) and the coil winding II (2) are symmetrically arranged, and the epoxy baffle (5) is perpendicular to the circumferential end face of the annular magnetic core (3).
3. The two-in-one differential-mode inductor of claim 2, wherein: the outer diameter of the base (4) is larger than that of the annular magnetic core (3), and the outer diameter of the base (4) is 48 mm.
4. The two-in-one differential-mode inductor of claim 3, wherein: the distance L from the outer end face of the epoxy baffle (5) to the outer end face of the coil winding I (1) or the outer end face of the coil winding II (2) is 1.5mm, the distance between the outer end face of the base (4) and the outer end face of the epoxy baffle (5) is 25.5mm, and the distance from the inductance pin (6) extending out of the outer end face of the base (4) is 3-4 mm.
5. The two-in-one differential-mode inductor of claim 1, wherein: and the inductance of the coil winding I (1) and the coil winding II (2) at the current of 10A is more than 100 uH.
6. The two-in-one differential-mode inductor of claim 1, wherein: the epoxy baffle (5) adopts FR4 epoxy board.
7. The two-in-one differential-mode inductor of claim 1, wherein: the annular magnetic core (3) is made of-52 iron powder magnetic rings.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2019108648000 | 2019-09-09 | ||
| CN201910864800 | 2019-09-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110828131A true CN110828131A (en) | 2020-02-21 |
Family
ID=69556608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911129999.9A Pending CN110828131A (en) | 2019-09-09 | 2019-11-18 | Two-in-one differential mode inductor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110828131A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111554475A (en) * | 2020-06-03 | 2020-08-18 | 平远雅玛西新能源科技有限公司 | Combined electric protection supporting structure |
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|---|---|---|---|---|
| CN101202539A (en) * | 2006-12-12 | 2008-06-18 | 台达电子工业股份有限公司 | Filter assembly and manufacturing method thereof |
| JP2008244247A (en) * | 2007-03-28 | 2008-10-09 | Fdk Corp | Winding parts |
| CN102610364A (en) * | 2011-12-26 | 2012-07-25 | 深圳市虹远通信有限责任公司 | Inductor with differential-mode filtering and lightning protecting functions and method for using and producing same |
| CN102856036A (en) * | 2011-06-30 | 2013-01-02 | 艾默生网络能源有限公司 | Difference and common mode integrated inductor, EMI (electromagnetic interference) filter and switch power source |
| CN204204550U (en) * | 2014-12-05 | 2015-03-11 | 钟显华 | The compound inductance of a kind of wideband |
| CN204884803U (en) * | 2015-08-19 | 2015-12-16 | 江西省高新超越精密电子有限公司 | Ripples ware is considered with two unification inductance of differential mode to common mode with novel structure |
| CN106158241A (en) * | 2014-09-15 | 2016-11-23 | 株式会社搜路研 | Coil block and manufacture method thereof |
| CN209232557U (en) * | 2019-01-07 | 2019-08-09 | 青岛云路新能源科技有限公司 | Common-mode inductor and power supply device |
| CN110211782A (en) * | 2018-02-28 | 2019-09-06 | 翰昂汽车零部件有限公司 | Choke and receiving portion for choke |
-
2019
- 2019-11-18 CN CN201911129999.9A patent/CN110828131A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101202539A (en) * | 2006-12-12 | 2008-06-18 | 台达电子工业股份有限公司 | Filter assembly and manufacturing method thereof |
| JP2008244247A (en) * | 2007-03-28 | 2008-10-09 | Fdk Corp | Winding parts |
| CN102856036A (en) * | 2011-06-30 | 2013-01-02 | 艾默生网络能源有限公司 | Difference and common mode integrated inductor, EMI (electromagnetic interference) filter and switch power source |
| CN102610364A (en) * | 2011-12-26 | 2012-07-25 | 深圳市虹远通信有限责任公司 | Inductor with differential-mode filtering and lightning protecting functions and method for using and producing same |
| CN106158241A (en) * | 2014-09-15 | 2016-11-23 | 株式会社搜路研 | Coil block and manufacture method thereof |
| CN204204550U (en) * | 2014-12-05 | 2015-03-11 | 钟显华 | The compound inductance of a kind of wideband |
| CN204884803U (en) * | 2015-08-19 | 2015-12-16 | 江西省高新超越精密电子有限公司 | Ripples ware is considered with two unification inductance of differential mode to common mode with novel structure |
| CN110211782A (en) * | 2018-02-28 | 2019-09-06 | 翰昂汽车零部件有限公司 | Choke and receiving portion for choke |
| CN209232557U (en) * | 2019-01-07 | 2019-08-09 | 青岛云路新能源科技有限公司 | Common-mode inductor and power supply device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111554475A (en) * | 2020-06-03 | 2020-08-18 | 平远雅玛西新能源科技有限公司 | Combined electric protection supporting structure |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200221 |
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| RJ01 | Rejection of invention patent application after publication |