CN106653298A - Ferrite inductor magnetic core - Google Patents

Ferrite inductor magnetic core Download PDF

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Publication number
CN106653298A
CN106653298A CN201510736453.5A CN201510736453A CN106653298A CN 106653298 A CN106653298 A CN 106653298A CN 201510736453 A CN201510736453 A CN 201510736453A CN 106653298 A CN106653298 A CN 106653298A
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China
Prior art keywords
air gap
magnetic core
interstice
ferrite
air
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CN201510736453.5A
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Chinese (zh)
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CN106653298B (en
Inventor
李书科
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SHIJIAZHUANG XINKE MICROWAVE TECHNOLOGY Co Ltd
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SHIJIAZHUANG XINKE MICROWAVE TECHNOLOGY Co Ltd
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Priority to CN201510736453.5A priority Critical patent/CN106653298B/en
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Abstract

The invention discloses a ferrite inductor magnetic core. The ferrite inductor magnetic core comprises a magnetic core, a first air gap and a second air gap, wherein the first air gap and the second air gap are formed in the two sides of the magnetic core respectively; the first air gap and the second air gap are both parallelogram air gaps; and the angles between the first air gap and the upper and lower surfaces of the magnetic core and the angles between the second air gap and the upper and lower surface of the magnetic core are both 10-80 degrees. By setting the tilted first air gap and second air gap in the two sides of the magnetic core, the air gap area is enlarged, the air gaps are reduced, and the inductor energy storage is improved consequently; and in addition, the ferrite inductor magnetic core disclosed by the invention can lower leakage inductance amount and noise as well as can reduce air gap loss.

Description

A kind of ferrite inductance magnetic core
Technical field
The present invention relates to magnetic core manufacture field, more particularly to a kind of ferrite inductance magnetic core.
Background technology
FERRITE CORE is a kind of high frequency permeability magnetic material, with high magnetic permeability and the characteristics of high magnetic flux density, its There is rectangle air gap in middle FERRITE CORE, the presence of the air gap can avoid magnetic saturation, reduce remanent magnetism, increases Plus weber capacity, while magnetic circuit equivalent length can also be increased, and then increase energy storage.But, rectangle air gap Presence also make FERRITE CORE there are some drawbacks, such as inductive energy storage amount is low, leakage inductance amount is big, electromagnetic noise Big the problems such as.
The content of the invention
In view of this, the invention provides a kind of ferrite inductance magnetic core, the ferrite inductance magnetic core can be carried High inductive energy storage, reduction leakage inductance, while electromagnetic noise can also be reduced.
The technical scheme is that what is be achieved in that:
A kind of ferrite inductance magnetic core, including magnetic core, the first air gap and interstice;
First air gap and the interstice are opened in respectively the magnetic core both sides;
First air gap and the interstice are parallelogram air gap, first air gap and described Interstice is 10 °~80 ° with the magnetic core upper and lower surface angulation.
Preferably, the magnetic core is cube magnetic core.
Preferably, first air gap and the interstice are parallel to each other.
Preferably, first air gap and the interstice with the magnetic core upper and lower surface angulation For 30 °~60 °.
Preferably, the magnetic core upper and lower ends are respectively arranged with the 3rd air gap and the 4th air gap.
Preferably, the 3rd air gap and the 4th air gap are parallelogram air gap.
Preferably, the magnetic core upper and lower ends are respectively arranged with the 5th air gap and the 6th air gap.
Preferably, the 3rd air gap and the 5th air gap are parallel to each other, the 4th air gap and described Six air gaps are parallel to each other.
From above-mentioned technical proposal as can be seen that compared with rectangle air gap in prior art, the present invention is by magnetic Core both sides arrange oblique first air gap and interstice, increased air gap area, air gap are reduced, so as to carry High inductive energy storage.In addition, ferrite inductance magnetic core disclosed by the invention can reduce leakage inductance amount and electromagnetism is made an uproar Sound, while so that air gap losses are reduced.
Description of the drawings
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to implementing Example or the accompanying drawing to be used needed for description of the prior art are briefly described, it should be apparent that, describe below In accompanying drawing be only some embodiments of the present invention, for those of ordinary skill in the art, do not paying On the premise of going out creative work, can be with according to these other accompanying drawings of accompanying drawings acquisition.
Fig. 1 is the structural representation of ferrite inductance magnetic core of the present invention.
In figure:
1st, magnetic core;2nd, the first air gap;3rd, interstice;4th, the 3rd air gap;5th, the 4th air gap;6、 5th air gap;7th, the 6th air gap.
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 clearly Chu, it is fully described by, it is clear that described embodiment is only a part of embodiment of the invention, rather than Whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creation Property work under the premise of the every other embodiment that obtained, belong to the scope of protection of the invention.
As shown in figure 1, the ferrite inductance magnetic core that the present invention is provided, including magnetic core 1, the first air gap 2 and the Two air gaps 3.
The magnetic core 1 is used for increasing electromagnetic intensity, and the magnetic core 1 can be cube magnetic core, work as magnetic When core 1 is FERRITE CORE, ferrite inductance magnetic core has stronger electromagnetic intensity.
First air gap 2 and the interstice 3 are used to increase inductive energy storage, the He of the first air gap 2 The interstice 3 is opened in the both sides of magnetic core 1, and first air gap 2 and the interstice 3 are Parallelogram air gap, first air gap 2 and the interstice 3 with the upper and lower surface of the magnetic core 1 Angulation is 10 °~80 °;The oblique section air gap of quadrangle by arranging in the both sides of magnetic core 1 of the invention, Increased air gap area and inductive energy storage.It should be noted that when first air gap 2 and second gas Gap 3 is parallel to each other, first air gap 2 and the interstice 3 and the upper and lower surface of the magnetic core 1 institute into Angle be 30 °~60 ° when, inductive energy storage amount is larger.
Additionally, for the distribution of the balanced magnetic line of force, inductive energy storage is improve, while reducing air gap losses and inductance Noise, the upper and lower ends of the magnetic core 1 are respectively equipped with the 3rd air gap 4 and the 4th air gap 5, the 3rd air gap 4 It is fit clearance with the 4th air gap 5;When the 3rd air gap 4 and the 4th air gap 5 are parallel four During the shape air gap of side, the effect of magnetic line of force distribution is best.It should be noted that the upper and lower ends of magnetic core 1 can be with It is respectively equipped with the 5th air gap 6 and the 6th air gap 7;When the 5th air gap 6 is mutually put down with the 3rd air gap 4 OK, when the 6th air gap 7 is parallel to each other with the 4th air gap 5, core inductance energy storage is larger.
In addition it is also necessary to explanation, the 3rd air gap 4, the 4th air gap 5, the 5th air gap 6 and the 6th air gap 7 small air gaps for being 50~100 μm, for small air gap is compared to big air gap, can more improve inductive energy storage, drop Low air gap losses and noise.
Presently preferred embodiments of the present invention is the foregoing is only, it is all at this not to limit the present invention Within bright spirit and principle, any modification, equivalent substitution and improvements made etc. should be included in this Within bright protection domain.

Claims (8)

1. a kind of ferrite inductance magnetic core, it is characterised in that:Including magnetic core, the first air gap and interstice;
First air gap and the interstice are opened in respectively the magnetic core both sides;
First air gap and the interstice are parallelogram air gap, first air gap and described Interstice is 10 °~80 ° with the magnetic core upper and lower surface angulation.
2. ferrite inductance magnetic core as claimed in claim 1, it is characterised in that:The magnetic core is cube Magnetic core.
3. ferrite inductance magnetic core as claimed in claim 1, it is characterised in that:First air gap and institute State interstice to be parallel to each other.
4. the ferrite inductance magnetic core as described in any one of claims 1 to 3, it is characterised in that:Described first Air gap and the interstice are 30 °~60 ° with the magnetic core upper and lower surface angulation.
5. ferrite inductance magnetic core as claimed in claim 1, it is characterised in that:The magnetic core upper and lower ends It is respectively arranged with the 3rd air gap and the 4th air gap.
6. ferrite inductance magnetic core as claimed in claim 5, it is characterised in that:3rd air gap and institute State the 4th air gap and be parallelogram air gap.
7. ferrite inductance magnetic core as claimed in claim 6, it is characterised in that:The magnetic core upper and lower ends It is respectively arranged with the 5th air gap and the 6th air gap.
8. ferrite inductance magnetic core as claimed in claim 7, it is characterised in that:3rd air gap and institute State the 5th air gap to be parallel to each other, the 4th air gap and the 6th air gap are parallel to each other.
CN201510736453.5A 2015-11-02 2015-11-02 A kind of ferrite inductance core assembly Active CN106653298B (en)

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CN106653298A true CN106653298A (en) 2017-05-10
CN106653298B CN106653298B (en) 2018-11-23

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113593848A (en) * 2019-06-05 2021-11-02 华为技术有限公司 Integrated inductor and electronic device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003068535A (en) * 2001-08-29 2003-03-07 Nec Tokin Corp Inductance part
CN201725663U (en) * 2010-03-17 2011-01-26 清流县鑫磁线圈制品有限公司 IB type combined magnetic core
CN202307442U (en) * 2011-10-21 2012-07-04 无锡晶磊电子有限公司 Direct current (DC) reactor for large variable frequency controller
CN205069303U (en) * 2015-11-02 2016-03-02 石家庄信科微波技术有限公司 Ferrite inductance core

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003068535A (en) * 2001-08-29 2003-03-07 Nec Tokin Corp Inductance part
CN201725663U (en) * 2010-03-17 2011-01-26 清流县鑫磁线圈制品有限公司 IB type combined magnetic core
CN202307442U (en) * 2011-10-21 2012-07-04 无锡晶磊电子有限公司 Direct current (DC) reactor for large variable frequency controller
CN205069303U (en) * 2015-11-02 2016-03-02 石家庄信科微波技术有限公司 Ferrite inductance core

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113593848A (en) * 2019-06-05 2021-11-02 华为技术有限公司 Integrated inductor and electronic device

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