CN201725663U - IB type combined magnetic core - Google Patents
IB type combined magnetic core Download PDFInfo
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- CN201725663U CN201725663U CN2010201407614U CN201020140761U CN201725663U CN 201725663 U CN201725663 U CN 201725663U CN 2010201407614 U CN2010201407614 U CN 2010201407614U CN 201020140761 U CN201020140761 U CN 201020140761U CN 201725663 U CN201725663 U CN 201725663U
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Abstract
An IB type combined magnetic core relates to a magnetic core, particularly to a magnetic core used in an inductor, which remarkably saves copper materials and electric energy and has good magnetic shielding performance and small volume. The IB type combined magnetic core is provided with an I type magnetic core and two B type magnetic cores positioned at two ends of the I type magnetic core, wherein the I type magnetic core adopts a column structure; and the B type magnetic core is provided with a central magnet which adopts a column structure as well, and at least two side column magnets are uniformly arranged on the edges of the central magnet of which the central line serves as the center. The two B type magnetic cores are arranged at two ends of the I type magnetic core, the central line of the I type magnetic core and that of the B type magnetic cores are superposed together, and the outward end surfaces of the side column magnets of the two B type magnetic cores are butted, thereby forming a plurality of square closed magnetic loops; and magnetic circuit air gaps are formed at the joints of the I type magnetic core and the B type magnetic cores, with the width of 0-10 mm.
Description
Technical field
The utility model relates to a kind of magnetic core, relates in particular to the magnetic core that uses on a kind of inductor.
Background technology
Traditional coil class inductance component generally cooperates bobbin to form around last enamelled wire by EE type magnetic core or EI type magnetic core.In order to prevent that the magnetic saturation phenomenon from taking place, need be provided with air gap in magnetic circuit, air gap places on the center pillar of magnetic core usually, and diffusing flux concentrating is present near the air gap, diffusing magnetic flux makes near the coiler part the air gap lose the transformation of " electricity-magnetic ", and near the coil sections the air gap only plays filling effect.The big more diffusing magnetic flux of air gap amount is just big more, and the coil of invalid filling is also just many more.Above-mentioned reason causes the increase of device self copper resistance and copper loss, makes the power consumption of device raise waste electric energy and copper material, reduce useful life, and the magnetic screen of EE type or EI type magnetic core is relatively poor, and volume is bigger, is not suitable on the narrower electronic circuit of the high installing space of magnetic screen requirement.
Summary of the invention
The combined magnet core that the purpose of this utility model provides a kind ofly can significantly save copper material, save electric energy, magnetic screen is good, core volume is less, use on the inductor.
The technical solution of the utility model is achieved in that
A kind of IB type combined magnet core is provided with an I type magnetic core and two Type B magnetic cores that are positioned at I type magnetic core two ends; Described I type magnetic core is a column structure; Described Type B magnetic core is provided with center magnet, and center magnet is column structure, is the center with the center line of center magnet, is provided with at least two side column magnets on the edge of center magnet equably; Two Type B magnetic cores are placed the two ends of I type magnetic core, the central lines that makes the center line of I type magnetic core and Type B magnetic core together, the export-oriented end face of the side column magnet of two Type B magnetic cores docks mutually, forms a plurality of square shape closed magnetic loops; Be provided with magnetic air gap at I type magnetic core and Type B magnetic core joint, the width of magnetic air gap is 0-10mm.
Described Type B magnetic core is provided with three or three above side column magnets, and the side column magnet can be a kind of in column structure or the L shaped structure.
Described Type B magnetic core is provided with two side column magnets, and the side column magnet is L type structure, is made up of two orthogonal folding arms; Horizontal folding arm is a column structure, and wherein two relative sides are splayed mutually, and two other relative side is the plane that is parallel to each other, and the width of the export-oriented end face of horizontal folding arm is slightly larger than the width of inner face; Vertically folding arm also is column structure; Center magnet is cylindrical-shaped structure.
The beneficial effects of the utility model are: compare with traditional EE type or EI type magnetic core, because magnetic air gap of the present utility model is arranged at the two ends of I type magnetic core, and common winding of the winding wire group of inductor is arranged at around the lateral surface of I type magnetic core, make magnetic air gap move to the coil windings outside like this, reduce near of the influence of the diffusing magnetic flux of magnetic air gap to coil windings, thereby reduced the number of turn of coil windings, promptly saved copper material; Because the utility model can constitute the square shape closed magnetic loop more than three, has improved the magnetic circuit of inductance component, thereby has made the volume of inductance component reduce, the inductance component power loss is lower, saves electric energy; Because I type magnetic core two ends are covered by the center magnet of Type B magnetic core, and the edge is provided with a plurality of side column magnets, thereby the diffusing magnetic flux that has reduced inductor has improved the magnetic shield performance of inductance component to influence on every side.
Below in conjunction with drawings and Examples the present invention is described in detail.
Description of drawings
Fig. 1 is the schematic diagram of the utility model embodiment 1;
Fig. 2 is the Type B magnetic core schematic diagram of the utility model embodiment 1;
Fig. 3 is the STRUCTURE DECOMPOSITION figure of the utility model embodiment 1;
Fig. 4 is the schematic diagram of the utility model embodiment 2;
Fig. 5 is the STRUCTURE DECOMPOSITION figure of the utility model embodiment 2;
Fig. 6 is the air gap medium enlarged drawing of the utility model embodiment 2;
Fig. 7 is the schematic diagram of the utility model embodiment 3;
Fig. 8 is the Type B magnetic core schematic diagram of the utility model embodiment 3;
Fig. 9 is the schematic diagram of the utility model embodiment 4;
Figure 10 is the STRUCTURE DECOMPOSITION figure of the utility model embodiment 4;
Figure 11 is the schematic diagram of the utility model embodiment 7;
Figure 12 is the Type B magnetic core schematic diagram of the utility model embodiment 7;
Figure 13 is the Type B magnetic core schematic diagram of the utility model embodiment 8;
Figure 14 is the Type B magnetic core schematic diagram of the utility model embodiment 9;
Figure 15 is the schematic diagram of the utility model embodiment 10;
Figure 16 is the Type B magnetic core schematic diagram of the utility model embodiment 10.
Embodiment
With reference to Fig. 1, Fig. 2 and Fig. 3, a kind of IB type combined magnet core is provided with an I type magnetic core 1 and two Type B magnetic cores 2 that are positioned at I type magnetic core two ends; Described I type magnetic core is a column structure; Described Type B magnetic core is provided with center magnet 2-1, and center magnet is column structure, is the center with the center line 2-2 of center magnet, is provided with at least two side column magnet 2-3 on the edge of center magnet equably; Two Type B magnetic cores are placed the two ends of I type magnetic core, the central lines that makes the center line of I type magnetic core and Type B magnetic core together, the export-oriented end face of the side column magnet of two Type B magnetic cores docks mutually, forms a plurality of square shape closed magnetic loops; Be provided with magnetic air gap at I type magnetic core and Type B magnetic core joint, the width of magnetic air gap is 0-10mm.
Described Type B magnetic core 2 is provided with three or three above side column magnet 2-3, it is characterized in that, the side column magnet can be a kind of in column structure or the L shaped structure.
The center magnet of the Type B magnetic core of present embodiment is a cylinder, and the side column magnet of Type B magnetic core is a column structure, and its cross section is a quadrangle, and wherein two relative limits are circular arc, and two other relative limit is a Line Segment, and the quantity of side column magnet is three; The cross section of I type magnetic core is circular; The width of magnetic air gap is 0.5mm.
Present embodiment can be used for not having on the inductance component of coil rack design, at the surface of I type magnetic core and Type B magnetic core spraying insulating material, then coil windings is twined and be arranged on the I type magnetic core, then as stated above to connecting three closed magnetic loops, and adopt technique for sticking to make to dock close and firm between the magnetic core, can process the inductance component of no coil rack like this.
Because magnetic air gap of the present utility model is arranged at the two ends of I type magnetic core, and common winding of the winding wire group of inductor is arranged at around the lateral surface of I type magnetic core, make magnetic air gap move to the coil windings outside like this, reduce near of the influence of the diffusing magnetic flux of magnetic air gap to coil windings, thereby reduced the number of turn of coil windings, promptly saved copper material.
Because the utility model can constitute three square shape closed magnetic loop, has improved the magnetic circuit of inductance component, thereby has made the volume of inductance component reduce, the inductance component power loss is lower, saves electric energy; Because I type magnetic core two ends are covered by the center magnet of Type B magnetic core, and the edge is provided with a plurality of side column magnets, thereby the diffusing magnetic flux that has reduced inductor has improved the magnetic shield performance of inductance component to influence on every side.
With reference to Fig. 4, Fig. 5, Fig. 6 and embodiment 1, as different from Example 1: present embodiment is provided with insertion groove 2-4 in the medial surface center of the center magnet 2-1 of B font magnetic core 2, and described insertion groove is the groove of a circle; Air gap medium 3 is enclosed within the two ends of I type magnetic core 1, inserts respectively then in the insertion groove of two Type B magnetic cores, the export-oriented end face of the side column magnet of butt joint Type B magnetic core forms three square shape closed magnetic loops.
Described air gap medium 3 is cap shape book wall construction, and its thickness is 8mm, and just the width of magnetic air gap is 8mm.
The structure of present embodiment is more firm, can not use technique for sticking, but the core structure relative complex, Type B magnetic core manufacturing cost is higher.
With reference to Fig. 7, Fig. 8 and embodiment 2, as different from Example 2: the side column magnet 2-3 of the Type B magnetic core of present embodiment is a L type structure, the side column magnet is made up of two orthogonal folding arms, horizontal folding arm is a rectangular structure, vertically the cross section of folding arm is a quadrangle, these tetragonal two relative edges are circular arc, and two other relative limit is a Line Segment; The cross section of the center magnet of Type B magnetic core is a triangle, and the sectional area of center magnet is less.The thickness of air gap medium is 5mm, and just the width of magnetic air gap is 5mm.
The required during fabrication magnetic material of the Type B magnetic core of present embodiment is less, so the magnetic core cost is more cheap, but magnetic shield performance is poorer slightly than embodiment 1 and embodiment 2.Present embodiment can be used for having on the inductance component of coil rack design, the coil windings winding is arranged on the skeleton, then skeleton is enclosed within on the I type magnetic core, the air gap medium places the two ends of I type magnetic core, then the two ends of I type magnetic core are inserted respectively in the insertion groove of two Type B magnetic cores, the export-oriented end face of butt joint Type B magnetic core side column magnet constitutes closed magnetic loop, soak insulating oil again with assurance insulation property and fixed coil winding, thereby process the inductance component that has coil rack.
Embodiment 4
With reference to Fig. 9, Figure 10 and embodiment 1, as different from Example 1: the center magnet of the Type B magnetic core of present embodiment is a square, and side column magnet 2-3 is the L type, is made up of two orthogonal folding arms, two folding arms are rectangular structure, and the number of side column magnet is four; The cross section of I font magnetic core is a square; The width of magnetic air gap is 0mm.
Certainly, the center magnet of Type B magnetic core also can be other quadrangle column structures, octagon column structure, cylindroid structure or the like, and center magnet is column structure in a word.The quantity of the side column magnet of Type B magnetic core also can be five, six even more.
Embodiment 5
With reference to embodiment 1 and embodiment 4, as different from Example 4: the Type B magnetic core of present embodiment and I type magnetic core joint are provided with the air gap medium, and the air gap medium is laminar square structure, and the thickness of air gap medium is 1mm, and just the width of magnetic air gap is 1mm.
Embodiment 6
With reference to embodiment 1 and embodiment 4, as different from Example 4: the Type B core center magnet of present embodiment is provided with foursquare insertion groove.
Embodiment 7
With reference to Figure 11, Figure 12, embodiment 1 and embodiment 4, as different from Example 4: the center magnet of present embodiment Type B magnetic core is provided with circular insertion groove; Type B magnetic core side column magnet 2-3 is L type structure, is made up of two orthogonal folding arms; Horizontal folding arm is a column structure, and wherein two relative sides are splayed mutually, and two other relative side is parallel plane, and the width of the export-oriented end face of horizontal folding arm is slightly larger than the width of inner face; Vertically folding arm also is column structure, and vertically the cross section of folding arm is a quadrilateral structure, and the inner side edge in cross section is a circular arc, and outer side edges is a straightway, and two other relative limit is splayed; Center magnet is rectangular-shaped structure, is provided with circular insertion groove on the medial surface of center magnet; The air gap medium is cap-like structure; I type magnetic core cross section is circular.
The present embodiment magnetic screen is better than embodiment 4, but the manufacturing cost of Type B magnetic core is higher.
Embodiment 8
With reference to Figure 13, embodiment 1 and embodiment 7, as different from Example 7: the width of the lower surface of the vertical folding arm of Type B magnetic core L type side column magnet, width than the export-oriented end face of horizontal folding arm is big slightly, vertically folding arm and the horizontal folding arm medial surface partly that connects is an arc surface, and remainder and other three sides are the plane; The center magnet of Type B magnetic core is a cylinder; The air gap medium is a cap-like structure.
The present embodiment magnetic screen is better than embodiment 7, but the Type B magnetic core is than the Type B magnetic core manufacturing cost height of embodiment 7.
Embodiment 9
With reference to Figure 14 and embodiment 1, described Type B magnetic core is provided with two side column magnets, and the side column magnet is L type structure, is made up of two orthogonal folding arms; Horizontal folding arm is a column structure, and wherein two relative sides are splayed mutually, and two other relative side is the plane that is parallel to each other, and the width of the export-oriented end face of horizontal folding arm is slightly larger than the width of inner face; Vertically folding arm also is column structure, and center magnet is cylindrical-shaped structure.
The cross section of the vertical folding arm of present embodiment is a quadrilateral structure, and inner side edge is a circular arc, and outer side edges is a straightway, and two other relative limit is splayed.I type magnetic core is a cylindrical structure.
Embodiment 10
With reference to Figure 15, Figure 16, embodiment 1, embodiment 8 and embodiment 9, as different from Example 9: the quantity of Type B magnetic core L type side column magnet 2-3 is two, and the structure of L type magnet is identical with the structure of embodiment 8.The center magnet medial surface center of Type B magnetic core is provided with circular insertion groove.
In the concrete course of processing, owing to the reasons such as convenience in the processing, also can and section be ground smooth with the cut-out of I type magnetic core, one section I type magnetic core is wherein placed Type B core center place, other one section I type magnetic core is placed on another Type B magnetic core, and then two parts are docking together and form IB type combined magnet core; Also might as required the Type B magnetic core be cut apart setting.In a word, above-mentioned various dividing methods are after finishing processing and assembling, its divisional plane is if shiny surface and magnetic air gap is not set, and then the magnetic structure that it constituted is identical with the magnetic structure that IB type combined magnet core is constituted, so be to belong to IB type combined magnet core equally.
Claims (10)
1. IB type combined magnet core, two Type B magnetic cores that it is characterized in that being provided with an I type magnetic core He be positioned at I type magnetic core two ends; Described I type magnetic core is a column structure; Described Type B magnetic core is provided with center magnet, and center magnet is column structure, is the center with the center line of center magnet, is provided with at least two side column magnets on the edge of center magnet equably; Two Type B magnetic cores are placed the two ends of I type magnetic core, the central lines that makes the center line of I type magnetic core and Type B magnetic core together, the export-oriented end face of the side column magnet of two Type B magnetic cores docks mutually, forms a plurality of square shape closed magnetic loops; Be provided with magnetic air gap at I type magnetic core and Type B magnetic core joint, the width of magnetic air gap is 0-10mm.
2. a kind of IB type combined magnet core as claimed in claim 1 is characterized in that described Type B magnetic core is provided with three or three above side column magnets.
3. a kind of IB type combined magnet core as claimed in claim 1, it is characterized in that described Type B magnetic core is provided with two side column magnets, the side column magnet is L type structure, form by two orthogonal folding arms, horizontal folding arm is a column structure, wherein two relative sides are splayed mutually, and two other relative side is parallel plane, and the width of the export-oriented end face of horizontal folding arm is slightly larger than the width of inner face; Vertically folding arm also is column structure; Center magnet is cylindrical-shaped structure.
4. a kind of IB type combined magnet core as claimed in claim 2 is characterized in that the side column magnet of Type B magnetic core is a column structure.
5. a kind of IB type combined magnet core as claimed in claim 2 is characterized in that the side column magnet of Type B magnetic core is the L type, is made up of two orthogonal folding arms.
6. a kind of IB type combined magnet core as claimed in claim 3, the cross section of vertical folding arm that it is characterized in that the side column magnet of Type B magnetic core is a quadrilateral structure, vertically the inner side edge in folding arm cross section is a circular arc, outer side edges is straightway or circular arc, and two other limit is splay or parallel straightway.
7. a kind of IB type combined magnet core as claimed in claim 3, the width of lower surface of vertical folding arm that it is characterized in that the L type side column magnet of Type B magnetic core, width than the export-oriented end face of horizontal folding arm is big slightly, with horizontal folding arm connect the part medial surface be arc surface, remainder and elsewhere three sides be the plane.
8. a kind of IB type combined magnet core as claimed in claim 5, the horizontal folding arm that it is characterized in that the L type side column magnet of Type B magnetic core is a column structure, wherein two relative sides are splayed mutually, two other relative side is parallel plane, and the width of the export-oriented end face of horizontal folding arm is slightly larger than the width of inner face; The width of the lower surface of the vertical folding arm of L type side column magnet, bigger slightly than the width of the export-oriented end face of horizontal folding arm, with the connect medial surface of part of horizontal folding arm be arc surface, remainder and other three sides are the plane.
9. a kind of IB type combined magnet core as claimed in claim 7 is characterized in that being provided with the air gap medium in the magnetic air gap of I type magnetic core and Type B magnetic core joint.
10. a kind of IB type combined magnet core as claimed in claim 9 is characterized in that the medial surface center of the center magnet of Type B magnetic core is provided with insertion groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201407614U CN201725663U (en) | 2010-03-17 | 2010-03-17 | IB type combined magnetic core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201407614U CN201725663U (en) | 2010-03-17 | 2010-03-17 | IB type combined magnetic core |
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| Publication Number | Publication Date |
|---|---|
| CN201725663U true CN201725663U (en) | 2011-01-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010201407614U Expired - Fee Related CN201725663U (en) | 2010-03-17 | 2010-03-17 | IB type combined magnetic core |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103065781A (en) * | 2013-01-28 | 2013-04-24 | 李丰良 | Mini voltage transformer |
| CN106653298A (en) * | 2015-11-02 | 2017-05-10 | 石家庄信科微波技术有限公司 | Ferrite inductor magnetic core |
| CN107705969A (en) * | 2016-08-08 | 2018-02-16 | 杭州中恒电气股份有限公司 | A kind of new inductance core |
| CN107705957A (en) * | 2016-08-08 | 2018-02-16 | 杭州中恒电气股份有限公司 | New integrated inductor |
| CN108257768A (en) * | 2018-01-09 | 2018-07-06 | 深圳市雅玛西电子有限公司 | Poor common mode integrated inductor and its scattered magnet shielding structure |
| CN110011324A (en) * | 2018-01-05 | 2019-07-12 | 速德实业股份有限公司 | Low-pressure reactive power compensating device assemblies |
-
2010
- 2010-03-17 CN CN2010201407614U patent/CN201725663U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103065781A (en) * | 2013-01-28 | 2013-04-24 | 李丰良 | Mini voltage transformer |
| CN106653298A (en) * | 2015-11-02 | 2017-05-10 | 石家庄信科微波技术有限公司 | Ferrite inductor magnetic core |
| CN106653298B (en) * | 2015-11-02 | 2018-11-23 | 石家庄信科微波技术有限公司 | A kind of ferrite inductance core assembly |
| CN107705969A (en) * | 2016-08-08 | 2018-02-16 | 杭州中恒电气股份有限公司 | A kind of new inductance core |
| CN107705957A (en) * | 2016-08-08 | 2018-02-16 | 杭州中恒电气股份有限公司 | New integrated inductor |
| CN110011324A (en) * | 2018-01-05 | 2019-07-12 | 速德实业股份有限公司 | Low-pressure reactive power compensating device assemblies |
| CN108257768A (en) * | 2018-01-09 | 2018-07-06 | 深圳市雅玛西电子有限公司 | Poor common mode integrated inductor and its scattered magnet shielding structure |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110126 Termination date: 20170317 |
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| CF01 | Termination of patent right due to non-payment of annual fee |