CN107993787A - A kind of composite cores device - Google Patents
A kind of composite cores device Download PDFInfo
- Publication number
- CN107993787A CN107993787A CN201810053674.6A CN201810053674A CN107993787A CN 107993787 A CN107993787 A CN 107993787A CN 201810053674 A CN201810053674 A CN 201810053674A CN 107993787 A CN107993787 A CN 107993787A
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- CN
- China
- Prior art keywords
- magnetic core
- core portion
- magnetic
- composite cores
- inductance
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- 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.)
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F3/00—Cores, Yokes, or armatures
- H01F3/10—Composite arrangements of magnetic circuits
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F3/00—Cores, Yokes, or armatures
- H01F3/10—Composite arrangements of magnetic circuits
- H01F3/14—Constrictions; Gaps, e.g. air-gaps
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F3/00—Cores, Yokes, or armatures
- H01F3/10—Composite arrangements of magnetic circuits
- H01F2003/106—Magnetic circuits using combinations of different magnetic materials
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Coils Or Transformers For Communication (AREA)
Abstract
The invention discloses a kind of composite cores device, including：First magnetic core portion, the second magnetic core portion and the 3rd magnetic core portion；First magnetic core portion is more than 1000 high permeability magnetic core for magnetic conductivity；The permeability range in the second magnetic core portion is 20~200, including endpoint value；The permeability range in the 3rd magnetic core portion is 10~100, including endpoint value；Wherein, splice between two magnetic cores in the first magnetic core portion in 3rd magnetic core portion, the combination of two magnetic cores in the first magnetic core portion and the magnetic core in the 3rd magnetic core portion is in I-shaped, second magnetic core portion includes two magnetic core pieces for being equipped with segmentation air gap, which splices the left and right sides between the I-shaped core combination respectively.Magnetic core dosage is saved, reduces production cost, solves the initial sensibility reciprocal of inductance, inductance anti-saturation characteristic is improved, reduces magnetic core and air gap losses, so as to reduce the loss of inductance, solves the problems, such as that inductance fever is serious.Efficiency is improved while the coil eddy-current loss that air gap is brought is reduced.
Description
Technical field
The present invention relates to inductors technique field, more particularly to a kind of composite cores device.
Background technology
In the circuits such as Switching Power Supply, inductor can be usually used.Inductor is the core magnetic device in circuit.
Current inductor is mostly single inductor, as shown in Figure 1, Fig. 1 is currently used single inductor, single inductor leads to
Often include upper and lower two magnetic core components, and between two magnetic core components setting up and down, be separately positioned on left and right two
The another two magnetic core component of side, four magnetic core components form a flux circuit, coil then are wrapped in the two of the left and right sides
On a magnetic core component, to form inductor.Single inductor has the problems such as volume is big, fever is serious, cost is higher.
Therefore, the volume of inductor how is reduced, reduces its cost, and solves the problems, such as that its fever is serious, is ability
The current technical issues that need to address of field technique personnel.
The content of the invention
The object of the present invention is to provide a kind of composite cores device, can reduce the volume of inductor, reduce it and be produced into
This, and solve the problems, such as that its fever is serious.
In order to solve the above technical problems, the present invention provides following technical solution：
A kind of composite cores device, including：First magnetic core portion, the second magnetic core portion and the 3rd magnetic core portion；First magnetic core
Portion is more than 1000 high permeability magnetic core for magnetic conductivity；The permeability range in the second magnetic core portion is 20~200, including endpoint
Value；The permeability range in the 3rd magnetic core portion is 10~100, including endpoint value；Wherein, the 3rd magnetic core portion splicing is in institute
Between two magnetic cores for stating the first magnetic core portion, the combination of the magnetic core in two magnetic cores in the first magnetic core portion and the 3rd magnetic core portion is in
I-shaped, the second magnetic core portion includes two magnetic core pieces for being equipped with segmentation air gap, which splices in the work respectively
The left and right sides between the core combination of font.
Preferably, each magnetic core in the first magnetic core portion is run through in the 3rd magnetic core portion.
Preferably, each magnetic core in the first magnetic core portion includes two magnetic core arrays, a magnetic in the first magnetic core portion respectively
Two magnetic core arrays of core are respectively fixedly connected with the both sides of the 3rd magnetic core portion one end；Another magnetic core in the first magnetic core portion
Two magnetic core arrays be respectively fixedly connected with the both sides of the 3rd magnetic core portion other end.
Preferably, further include：The first winding for being respectively wound around in two magnetic core pieces in the second magnetic core portion and second around
Group.
Preferably, the first magnetic core portion is ferrite magnetic core or noncrystal magnetic core portion.
Preferably, the second magnetic core portion is the magnetic core portion comprising metal magnetic.
Preferably, the second magnetic core portion includes sendust core or iron silicon magnetic core.
Preferably, the 3rd magnetic core portion is the magnetic core portion comprising metal magnetic.
Preferably, the 3rd magnetic core portion includes sendust core or iron silicon magnetic core.
Compared with prior art, above-mentioned technical proposal has the following advantages：
A kind of composite cores device provided by the present invention, including：First magnetic core portion, the second magnetic core portion and the 3rd magnetic core
Portion；First magnetic core portion is more than 1000 high permeability magnetic core for magnetic conductivity；The permeability range in the second magnetic core portion is 20~200,
Including endpoint value；The permeability range in the 3rd magnetic core portion is 10~100, including endpoint value；Wherein, the splicing of the 3rd magnetic core portion is the
Between two magnetic cores in one magnetic core portion, the combination of two magnetic cores in the first magnetic core portion and the magnetic core in the 3rd magnetic core portion is in I-shaped, and second
Magnetic core portion include two be equipped with segmentation air gap magnetic core pieces, two magnetic core pieces splice respectively the I-shaped core combination it
Between the left and right sides.Couple to be formed by using the magnetic core in the first magnetic core portion, the second magnetic core portion and the 3rd magnetic core portion three types
One integrated double inductance core device.Wherein, the first magnetic core portion is using cheap low magnetic loss, the magnetic core of high magnetic permeability；
Second magnetic core portion is in the stronger magnetic core of anti-saturation between 20~200 using magnetic conductivity, and is provided with segmentation air gap on it；The
Three magnetic core portions are in the stronger core material of anti-saturation between 10~100 using magnetic conductivity.By more core materials it is compound with
And coupled modes save magnetic core dosage, cheap core material is added, reduces production cost, while reduce inductance
Volume, by more core materials it is compound and segmentation air gap solve the initial sensibility reciprocal of inductance and improve inductance anti-saturation spy
Property, in addition, the first magnetic core portion using low-loss, high-permeability material, reduces core loss, air gap is reduced using segmentation air gap
Loss, so as to reduce the loss of inductance, solves the problems, such as that inductance fever is serious.Furthermore, it is possible to controlled by the 3rd magnetic core portion
The sensibility reciprocal and air gap of inductance, can cause air gap to reduce, and reduce the coil eddy-current loss that air gap is brought, and improve efficiency.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is attached drawing needed in technology description to be briefly described, it should be apparent that, drawings in the following description are the present invention
Some embodiments, for those of ordinary skill in the art, without creative efforts, can also basis
These attached drawings obtain other attached drawings.
The composite cores apparatus structure schematic diagram that Fig. 1 is provided for a kind of embodiment of the present invention.
Embodiment
The core of the present invention is to provide a kind of composite cores device, can reduce the volume of inductor, reduce it and be produced into
This, and solve the problems, such as that its fever is serious.
It is understandable in order to enable the above objects, features and advantages of the present invention to become apparent, below in conjunction with the accompanying drawings to this hair
Bright embodiment is described in detail.
Detail is elaborated in the following description in order to fully understand the present invention.But the present invention can with it is a variety of not
Other manner described here is same as to implement, those skilled in the art can do class in the case of without prejudice to intension of the present invention
Like popularization.Therefore the present invention is not limited to the specific embodiments disclosed below.
Please refer to Fig.1, the composite cores apparatus structure schematic diagram that Fig. 1 is provided for a kind of embodiment of the present invention.
A kind of embodiment of the present invention provides a kind of composite cores device, including：First magnetic core portion 1, second
2 and the 3rd magnetic core portion 3 of magnetic core portion；First magnetic core portion 1 is more than 1000 high permeability magnetic core for magnetic conductivity；Second magnetic core portion 2
Permeability range is 20~200, including endpoint value；The permeability range in the 3rd magnetic core portion 3 is 10~100, including endpoint value；Its
In, the 3rd magnetic core portion 3 splices between two magnetic cores in the first magnetic core portion 1, two magnetic cores in the first magnetic core portion 1 and the 3rd magnetic core portion 3
Magnetic core combination in I-shaped, the second magnetic core portion 2 includes two magnetic core pieces for being equipped with segmentation air gap, two magnetic core pieces difference
Splice the left and right sides between the I-shaped core combination.
In the present embodiment, as shown in Figure 1, the first magnetic core portion includes two parallel up and down magnetic cores；3rd magnetic core portion
Including the magnetic core between a magnetic core of be placed in the first magnetic core portion two.By using the first magnetic core portion, the second magnetic core portion and
The magnetic core of three magnetic core portion three types couples to form an integrated double inductance core devices.Wherein, the first magnetic core portion uses valency
The cheap low magnetic loss of lattice, the magnetic core of high magnetic permeability；Second magnetic core portion is stronger using the anti-saturation that magnetic conductivity is between 20~200
Magnetic core, and be provided with segmentation air gap on it；3rd magnetic core portion is stronger using the anti-saturation that magnetic conductivity is between 10~100
Core material.
It is compound and coupled modes save magnetic core dosage by more core materials, cheap core material is added, is dropped
Low production cost, while reduce the volume of inductance, it is compound and at the beginning of segmentation air gap solves inductance by more core materials
Beginning sensibility reciprocal and improve inductance anti-saturation characteristic.The so-called initial sensibility reciprocal of the inductance i.e. inductance of such as 100A that solves is in electric current
For 0A when general sensibility reciprocal it is bigger (it is assumed that 100UH), be the inductance value with direct current biasing under 100A, inductance value may
50UH can be dropped to, air gap here and material exist with the use of the inductance value that can lift direct current biasing, resistance inductance
Saturation under 100A.
In addition, the first magnetic core portion is reduced core loss, is dropped using segmentation air gap using low-loss, high-permeability material
Low air gap losses, so as to reduce the loss of inductance, solve the problems, such as that inductance fever is serious.It can be controlled by the 3rd magnetic core portion
The sensibility reciprocal and air gap of inductance, can cause air gap to reduce, and reduce the coil eddy-current loss that air gap is brought, and improve efficiency.
It should be noted that the magnetic conductivity in the second magnetic core portion and the 3rd magnetic core portion is there are overlapping region, for the coincidence area
Domain, both can use equal material, but material mixture ratio otherwise the same, the i.e. magnetic conductance in the second magnetic core portion and the 3rd magnetic core portion
Rate is different, for example the 3rd magnetic permeability is less than the second magnetic conductivity.
It is preferred that each magnetic core in the first magnetic core portion is run through in the 3rd magnetic core portion, i.e., as shown in Figure 1, the magnetic core in the 3rd magnetic core portion runs through
Two magnetic core up and down in the first magnetic core portion.
In one embodiment of the invention, each magnetic core in the first magnetic core portion includes two magnetic core arrays, the first magnetic respectively
Two magnetic core arrays of one magnetic core of core are respectively fixedly connected with the both sides of the 3rd magnetic core portion one end；Another magnetic in the first magnetic core portion
Two magnetic core arrays of core are respectively fixedly connected with the both sides of the 3rd magnetic core portion other end.That is in two magnetic cores up and down in the first magnetic core portion
Each magnetic core formed by two magnetic core arrays, as the first magnetic core portion top magnetic core i.e. by positioned at the 3rd magnetic core portion upper end
The magnetic core array of left and right two is formed.
In one embodiment of the invention, which further includes：It is respectively wound around the second magnetic core portion
The first winding and the second winding in two magnetic core pieces.
Further, the first magnetic core portion is ferrite magnetic core or noncrystal magnetic core portion.That is each magnetic core in the first magnetic core portion
It is made of material of the magnetic conductivities such as Ferrite Material or amorphous material more than 1000.Its price is extremely cheap, and with low
The characteristics such as magnetic loss, high magnetic permeability.
Second magnetic core portion is the magnetic core portion comprising metal magnetic, and the second magnetic core portion includes sendust core or iron silicon magnetic core.
I.e. the magnetic core in the second magnetic core portion includes ferrocart core, metal magnetic powder core, such as iron sial, patch silicon.And second magnetic core portion magnetic core bag
Containing air gap.
3rd magnetic core portion is the magnetic core portion comprising metal magnetic.3rd magnetic core portion includes sendust core or iron silicon magnetic core.
As above-mentioned, the magnetic conductivity in the second magnetic core portion and the 3rd magnetic core portion is there are overlapping region, for the overlapping region, two
Person can use equal material, but material mixture ratio otherwise it is the same, i.e., the magnetic conductivity in the second magnetic core portion and the 3rd magnetic core portion is not
Equally, for example the 3rd magnetic permeability is less than the second magnetic conductivity.
Above-mentioned each magnetic core that present embodiment provides reduce further composite cores device production cost.
A kind of composite cores device provided by the present invention is described in detail above.It is used herein specifically a
Example is set forth the principle of the present invention and embodiment, and the explanation of above example is only intended to help to understand the present invention's
Method and its core concept.It should be pointed out that for those skilled in the art, the principle of the invention is not being departed from
On the premise of, some improvement and modification can also be carried out to the present invention, these are improved and modification also falls into the claims in the present invention
Protection domain in.
Claims (9)
- A kind of 1. composite cores device, it is characterised in that including：First magnetic core portion, the second magnetic core portion and the 3rd magnetic core portion；It is described First magnetic core portion is more than 1000 high permeability magnetic core for magnetic conductivity；The permeability range in the second magnetic core portion is 20~200, Including endpoint value；The permeability range in the 3rd magnetic core portion is 10~100, including endpoint value；Wherein, the 3rd magnetic core portion Splicing is between two magnetic cores in the first magnetic core portion, the magnetic core in two magnetic cores in the first magnetic core portion and the 3rd magnetic core portion Combination in I-shaped, the second magnetic core portion includes two magnetic core pieces for being equipped with segmentation air gap, which spells respectively The left and right sides being connected between the I-shaped core combination.
- 2. composite cores device according to claim 1, it is characterised in that first magnetic is run through in the 3rd magnetic core portion Each magnetic core of core.
- 3. composite cores device according to claim 1, it is characterised in that each magnetic core in the first magnetic core portion wraps respectively Two magnetic core arrays are included, two magnetic core arrays of a magnetic core in the first magnetic core portion are respectively fixedly connected with the 3rd magnetic core portion one The both sides at end；Two magnetic core arrays of another magnetic core in the first magnetic core portion are respectively fixedly connected with another in the 3rd magnetic core portion The both sides at end.
- 4. composite cores device according to any one of claims 1 to 3, it is characterised in that further include：It is respectively wound around institute State the first winding and the second winding in two magnetic core pieces in the second magnetic core portion.
- 5. composite cores device according to claim 4, it is characterised in that the first magnetic core portion is ferrite magnetic core Or noncrystal magnetic core portion.
- 6. composite cores device according to claim 5, it is characterised in that the second magnetic core portion is to include metal magnetic Magnetic core portion.
- 7. composite cores device according to claim 6, it is characterised in that the second magnetic core portion includes sendust core Or iron silicon magnetic core.
- 8. composite cores device according to claim 6, it is characterised in that the 3rd magnetic core portion is to include metal magnetic Magnetic core portion.
- 9. composite cores device according to claim 8, it is characterised in that the 3rd magnetic core portion includes sendust core Or iron silicon magnetic core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810053674.6A CN107993787A (en) | 2018-01-19 | 2018-01-19 | A kind of composite cores device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810053674.6A CN107993787A (en) | 2018-01-19 | 2018-01-19 | A kind of composite cores device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107993787A true CN107993787A (en) | 2018-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810053674.6A Pending CN107993787A (en) | 2018-01-19 | 2018-01-19 | A kind of composite cores device |
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| Country | Link |
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| CN (1) | CN107993787A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113161122A (en) * | 2020-01-22 | 2021-07-23 | 株式会社村田制作所 | Inductance structure |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2453450A1 (en) * | 2010-11-12 | 2012-05-16 | Falco Electronics Ltd. | Hybrid core for power inductor |
| CN102709026A (en) * | 2012-02-01 | 2012-10-03 | 鸿康磁业电子（昆山）有限公司 | Improved inductor |
| JP2013080949A (en) * | 2012-12-14 | 2013-05-02 | Hitachi Metals Ltd | Reactor, and power conditioner apparatus |
| CN104715899A (en) * | 2013-12-12 | 2015-06-17 | 台达电子企业管理（上海）有限公司 | Three-phase electric reactor |
| CN105097222A (en) * | 2015-07-22 | 2015-11-25 | 上海正泰电源系统有限公司 | Magnetic coupling inductor of interleaving parallel converter and magnetic core |
-
2018
- 2018-01-19 CN CN201810053674.6A patent/CN107993787A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2453450A1 (en) * | 2010-11-12 | 2012-05-16 | Falco Electronics Ltd. | Hybrid core for power inductor |
| CN102709026A (en) * | 2012-02-01 | 2012-10-03 | 鸿康磁业电子（昆山）有限公司 | Improved inductor |
| JP2013080949A (en) * | 2012-12-14 | 2013-05-02 | Hitachi Metals Ltd | Reactor, and power conditioner apparatus |
| CN104715899A (en) * | 2013-12-12 | 2015-06-17 | 台达电子企业管理（上海）有限公司 | Three-phase electric reactor |
| CN105097222A (en) * | 2015-07-22 | 2015-11-25 | 上海正泰电源系统有限公司 | Magnetic coupling inductor of interleaving parallel converter and magnetic core |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113161122A (en) * | 2020-01-22 | 2021-07-23 | 株式会社村田制作所 | Inductance structure |
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| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 361000 torch garden, torch high tech Zone, Xiamen, Fujian 457 Applicant after: Kehua Hengsheng Co., Ltd. Applicant after: Kehua Technology Co., Ltd., Zhangzhou Address before: 361000 torch garden, torch high tech Zone, Xiamen, Fujian 457 Applicant before: Xiamen Kehua Hengsheng Co., Ltd. Applicant before: Kehua Technology Co., Ltd., Zhangzhou |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180504 |
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| RJ01 | Rejection of invention patent application after publication |