CN203250616U - Inductor - Google Patents
Inductor Download PDFInfo
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- CN203250616U CN203250616U CN 201320210590 CN201320210590U CN203250616U CN 203250616 U CN203250616 U CN 203250616U CN 201320210590 CN201320210590 CN 201320210590 CN 201320210590 U CN201320210590 U CN 201320210590U CN 203250616 U CN203250616 U CN 203250616U
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- common mode
- mode inductance
- inductor
- magnetic sheet
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Abstract
The utility model discloses an inductor which comprises a common mode choke and further comprises a magnetic sheet. The common mode choke comprises a common mode choke magnetic core and at least two common mode choke windings, wherein the common mode choke windings wind the common mode choke magnetic core. The magnetic sheet is attached to at least one common mode choke winding. The inductor is easy to achieve.
Description
Technical field
The utility model relates to electric and electronic technical field, relates in particular to a kind of inductor.
Background technology
In recent years, common mode inductance obtains a wide range of applications at electric and electronic technical field, Fig. 1 a, Fig. 1 b and Fig. 1 c are the present the most schematic diagram of three kinds of common mode inductances commonly used, these three kinds of common mode inductances consist of by common mode inductance magnetic core and two common mode inductance windings, two common mode inductance windings are wound on the common mode inductance magnetic core, when passing through common-mode signal in the common mode inductance winding, the magnetic direction of two common mode inductance winding generations is identical.In electronic equipment, use common mode inductance, the common-mode noise in can limiting circuitry, and because the existence of the leakage flux of common mode inductance winding, common mode inductance also can produce the differential mode inductance amount, suppresses differential mode noise.But the differential mode magnetic circuit of common mode inductance forms by air, because the magnetic resistance of air is larger, so that the magnetic resistance of differential mode magnetic circuit is larger, the differential mode inductance amount that common mode inductance can produce is less, and the inhibition of differential mode noise is relatively poor.
For this reason, prior art has proposed a kind of poor common mode integrated inductor, and the poor common mode integrated inductor of this kind is to set up I type magnetic core to obtain on the basis of common mode inductance, for example poor common mode integrated inductor shown in Figure 2.Owing to the existence of I type magnetic core, reduced the magnetic resistance of differential mode magnetic circuit, improve the differential mode inductance amount, and then improved the inhibition of differential mode noise.
Yet because the I type magnetic core in the above-mentioned poor common mode integrated inductor is not easy to fix, so that be somebody's turn to do the in actual applications difficult realization of poor common mode integrated inductor, when the common-mode inductor magnetic core was annular, such scheme was difficult to realization more.
The utility model content
The utility model embodiment provides a kind of inductor, has solved the problem that poor common mode integrated inductor of the prior art is difficult to realize.
The utility model embodiment provides a kind of inductor, comprise: common mode inductance, described common mode inductance comprises common mode inductance magnetic core and at least two common mode inductance windings on the described common mode inductance magnetic core, described inductor also comprises magnetic sheet, and described magnetic sheet is attached at least one common mode inductance winding.
The inductor that the utility model embodiment provides, the magnetic resistance of the differential mode magnetic circuit that consists of by magnetic sheet is less, can improve the differential mode inductance amount, and then the inhibition of raising differential mode noise, and magnetic sheet is easy to fix, and namely this inductor of providing of the utility model embodiment is easy to realize.
Description of drawings
Accompanying drawing is used to provide further understanding of the present utility model, and consists of the part of specification, is used from explanation the utility model with the utility model embodiment one, does not consist of restriction of the present utility model.In the accompanying drawings:
Fig. 1 a is one of schematic diagram of common mode inductance in the prior art;
Fig. 1 b be common mode inductance in the prior art schematic diagram two;
Fig. 1 c be common mode inductance in the prior art schematic diagram three;
Fig. 2 is front view and the end view of poor common mode integrated inductor of the prior art;
Front view and the end view of the inductor that Fig. 3 provides for the utility model embodiment 1;
Front view and the end view of the inductor that Fig. 4 provides for the utility model embodiment 2;
Front view and the end view of the inductor that Fig. 5 provides for the utility model embodiment 3;
Front view and the end view of the inductor that Fig. 6 provides for the utility model embodiment 4;
Front view and the end view of the inductor that Fig. 7 provides for the utility model embodiment 5;
Front view and the end view of the inductor that Fig. 8 provides for the utility model embodiment 6;
Front view and the end view of the inductor that Fig. 9 provides for the utility model embodiment 7;
Front view and the end view of the inductor that Figure 10 provides for the utility model embodiment 8;
Front view and the end view of the inductor that Figure 11 provides for the utility model embodiment 9;
Front view and the end view of the inductor that Figure 12 provides for the utility model embodiment 10;
Front view and the end view of the inductor that Figure 13 provides for the utility model embodiment 11;
Front view and the end view of the inductor that Figure 14 provides for the utility model embodiment 12.
Embodiment
In order to provide the implementation of the poor common mode integrated inductor that is easy to realize, the utility model embodiment provides a kind of inductor, below in conjunction with Figure of description preferred embodiment of the present utility model is described, be to be understood that, preferred embodiment described herein only is used for description and interpretation the utility model, and is not used in restriction the utility model.And in the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.
The utility model embodiment provides a kind of inductor, comprise: common mode inductance, this common mode inductance comprises common mode inductance magnetic core and at least two common mode inductance windings on this common mode inductance magnetic core, and this inductor also comprises magnetic sheet, and this magnetic sheet is attached at least one common mode inductance winding.
Wherein, the material of magnetic sheet can be amorphous alloy material, and is concrete such as non-crystaline amorphous metal or nanometer crystal alloy etc.; Also can be the higher crystal alloy material of some magnetic permeabilitys, specifically such as permalloy etc.Above-mentioned non-crystaline amorphous metal, nanometer crystal alloy, permalloy only are example, are the higher magnetic material of magnetic permeability commonly used, and the magnetic material that other magnetic permeability is higher also can be used as the material of this magnetic sheet.
And the quantity of magnetic sheet can be a slice, this magnetic sheet can be positioned at common mode inductance a side and and each common mode inductance winding all attach, this magnetic sheet also can around common mode inductance one week also and each common mode inductance winding all attach; Magnetic sheet also can comprise two, these two magnetic sheets lay respectively at common mode inductance both sides and and each common mode inductance winding all attach; Further, magnetic sheet also can comprise multi-disc, common mode inductance winding of every a slice parcel.
When reality is implemented, can use adhesive to realize the attaching of magnetic sheet and common mode inductance winding by the mode of pasting.As seen the inductor that adopts the utility model embodiment to provide is easy to realize.
The common mode inductance magnetic core of the common mode inductance in the inductor that the utility model embodiment provides is specifically as follows rectangle magnetic core, toroidal core or day shaped magnetic core, when the common mode inductance magnetic core was day shaped magnetic core, the common mode inductance winding was wound on the center pillar of day shaped magnetic core.
Below in conjunction with accompanying drawing, with specific embodiment the above-mentioned inductor that the utility model proposes is elaborated.
The common mode inductance magnetic core of the common mode inductance in the inductor that following embodiment 1-embodiment 7 provides is the rectangle magnetic core.
Embodiment 1:
The utility model embodiment 1 provides a kind of inductor, and the front view of this inductor and end view comprise common mode inductance and magnetic sheet as shown in Figure 3, wherein:
Common mode inductance comprises rectangle common mode inductance magnetic core and symmetrical two common mode inductance windings on this rectangle common mode inductance magnetic core; Magnetic sheet be positioned at this common mode inductance a side and and each common mode inductance winding all attach.
Embodiment 2:
The utility model embodiment 2 provides a kind of inductor, and the front view of this inductor and end view comprise common mode inductance and two magnetic sheets as shown in Figure 4, wherein:
Common mode inductance comprises rectangle common mode inductance magnetic core and symmetrical two common mode inductance windings on this rectangle common mode inductance magnetic core; Two magnetic sheets lay respectively at this common mode inductance both sides and and each common mode inductance winding all attach.
Obviously, the scheme that adopts the utility model embodiment 2 to provide, the increase effect of differential mode inductance amount is better than above-described embodiment 1.
Embodiment 3:
The utility model embodiment 3 provides a kind of inductor, and the front view of this inductor and end view comprise common mode inductance and magnetic sheet as shown in Figure 5, wherein:
Common mode inductance comprises rectangle common mode inductance magnetic core and symmetrical two common mode inductance windings on this rectangle common mode inductance magnetic core; Magnetic sheet both sides also all and each common mode inductance winding before and after this common mode inductance attach.
Embodiment 4:
The utility model embodiment 4 provides a kind of inductor, and the front view of this inductor and end view comprise common mode inductance and magnetic sheet as shown in Figure 6, wherein:
Common mode inductance comprises rectangle common mode inductance magnetic core and symmetrical two common mode inductance windings on this rectangle common mode inductance magnetic core; Magnetic sheet one side also all and each common mode inductance winding around about this common mode inductance attaches.
In the utility model embodiment 3 and embodiment 4, complete closed when magnetic sheet centers on common mode inductance consists of a week, and in other embodiments, magnetic sheet also can not exclusively seal when centering on common mode inductance, but should center on common mode inductance winding part at least.
The scheme that adopts the utility model embodiment 3 and embodiment 4 to provide, required magnetic sheet material is more.
Embodiment 5:
In order to reduce the use amount of magnetic sheet material, the utility model embodiment 5 also provides a kind of inductor, and the front view of this inductor and end view do not repeat them here as shown in Figure 7.
Embodiment 6:
Corresponding to above-described embodiment 5, the utility model embodiment 6 also provides a kind of inductor, and the front view of this inductor and end view are as shown in Figure 8.
The scheme that adopts the utility model embodiment 5 or embodiment 6 to provide, required magnetic sheet material is minimum.
Embodiment 7:
The utility model embodiment 7 provides a kind of inductor, and the front view of this inductor and end view comprise common mode inductance and two magnetic sheets as shown in Figure 9, wherein:
Common mode inductance comprises rectangle common mode inductance magnetic core and symmetrical two common mode inductance windings on this rectangle common mode inductance magnetic core; Common mode inductance winding of every a slice magnetic sheet parcel.
The scheme that adopts the utility model embodiment 7 to provide, the differential mode inductance amount increases maximum.
As seen, the scheme that adopts the utility model embodiment to provide, basis at common mode inductance increases magnetic sheet, the magnetic resistance of the differential mode magnetic circuit that consists of by magnetic sheet is less, can improve the differential mode inductance amount, and then improve the inhibition of differential mode noise, and, magnetic sheet is easy to fix, and namely this inductor of providing of the utility model embodiment is easy to realize.
In the specific implementation, can select according to actual conditions the implementation of above-mentioned any one inductor.
The implementation of the inductor of above-described embodiment 1-embodiment 7 also can be applicable to use the common mode inductance of other shape magnetic core.
The common mode inductance magnetic core of the common mode inductance in the inductor that following embodiment 8-embodiment 10 provides is toroidal core.
Embodiment 8:
The utility model embodiment 8 provides a kind of inductor, and the front view of this inductor and end view comprise common mode inductance and two magnetic sheets as shown in figure 10, wherein:
Common mode inductance comprises annular common mode inductance magnetic core and symmetrical two common mode inductance windings on this annular common mode inductance magnetic core; Two magnetic sheets lay respectively at this common mode inductance both sides and and each common mode inductance winding all attach.
Embodiment 9:
The utility model embodiment 9 provides a kind of inductor, and the front view of this inductor and end view comprise common mode inductance and magnetic sheet as shown in figure 11, wherein:
Common mode inductance comprises annular common mode inductance magnetic core and symmetrical two common mode inductance windings on this annular common mode inductance magnetic core; Magnetic sheet attaches around this common mode inductance external diameter one side also all and each common mode inductance winding.
Embodiment 10:
The utility model embodiment 10 provides a kind of inductor, and the front view of this inductor and end view comprise common mode inductance and two magnetic sheets as shown in figure 12, wherein:
Common mode inductance comprises annular common mode inductance magnetic core and symmetrical two common mode inductance windings on this annular common mode inductance magnetic core; Two magnetic sheets wrap up respectively a common mode inductance winding.
The scheme that adopts the utility model embodiment 10 to provide, the differential mode inductance amount increases maximum, but the common mode inductance umber of turn when being wound in annular common mode inductance magnetic core on is when more, and the scheme that may be not so good as above-described embodiment 8 or embodiment 9 is easy to implement.
Other execution mode that increases magnetic sheet formation inductor on the basis of the common mode inductance that uses toroidal core does not repeat them here.
The common mode inductance magnetic core of the common mode inductance in the inductor that following embodiment 11-embodiment 12 provides is a day shaped magnetic core.
Embodiment 11:
The utility model embodiment 11 provides a kind of inductor, and the front view of this inductor and end view comprise common mode inductance and two magnetic sheets as shown in figure 13, wherein:
Common mode inductance comprises day font common mode inductance magnetic core and two common mode inductance windings on this day font common mode inductance magnetic core center pillar; Two magnetic sheets lay respectively at this common mode inductance both sides and and each common mode inductance winding all attach.
Embodiment 12:
The utility model embodiment 12 provides a kind of inductor, and the front view of this inductor and end view comprise common mode inductance and magnetic sheet as shown in figure 14, wherein:
Common mode inductance comprises day font common mode inductance magnetic core and two common mode inductance windings on this day font common mode inductance magnetic core center pillar; Magnetic sheet wraps up this two common mode inductance windings.
In other embodiments, magnetic sheet also can comprise two, common mode inductance winding of every a slice parcel.
The scheme that adopts the utility model embodiment 12 to provide, required magnetic sheet material is more than above-described embodiment 11, but the increase of differential mode inductance amount is also greater than above-described embodiment 11.
Other execution mode that increases magnetic sheet formation inductor on the basis of the common mode inductance that uses day shaped magnetic core does not repeat them here.
Inductor in above-described embodiment is the two-phase inductor that comprises two common mode inductance windings, and in other embodiments, inductor also can be for comprising the heterogeneous inductor of a plurality of common mode inductance windings.
In sum, the inductor that the utility model embodiment provides comprises: common mode inductance, this common mode inductance comprise common mode inductance magnetic core and at least two common mode inductance windings on this common mode inductance magnetic core, this inductor also comprises magnetic sheet, and this magnetic sheet is attached at least one common mode inductance winding.The inductor that adopts the utility model embodiment to provide is easy to realize.
Obviously, those skilled in the art can carry out various changes and modification to the utility model and not break away from spirit and scope of the present utility model.Like this, if of the present utility model these are revised and modification belongs within the scope of the utility model claim and equivalent technologies thereof, then the utility model also is intended to comprise these changes and modification interior.
Claims (9)
1. inductor, comprise: common mode inductance, described common mode inductance comprise common mode inductance magnetic core and at least two common mode inductance windings on the described common mode inductance magnetic core, it is characterized in that, also comprise magnetic sheet, described magnetic sheet is attached at least one common mode inductance winding.
2. inductor as claimed in claim 1 is characterized in that, described magnetic sheet be positioned at described common mode inductance a side and and each common mode inductance winding all attach.
3. inductor as claimed in claim 1 is characterized in that, described magnetic sheet around one week of described common mode inductance and and each common mode inductance winding all attach.
4. inductor as claimed in claim 3 is characterized in that, the both sides of described magnetic sheet and each common mode inductance winding attach.
5. inductor as claimed in claim 1 is characterized in that, described magnetic sheet comprises two, two both sides that lay respectively at described common mode inductance and and each common mode inductance winding all attach.
6. inductor as claimed in claim 1 is characterized in that, described magnetic sheet comprises multi-disc, common mode inductance winding of every a slice parcel.
7. such as the arbitrary described inductor of claim 1-6, it is characterized in that the material of described magnetic sheet is amorphous alloy.
8. inductor as claimed in claim 7 is characterized in that, described amorphous alloy is specially non-crystaline amorphous metal or nanometer crystal alloy.
9. such as the arbitrary described inductor of claim 1-6, it is characterized in that the material of described magnetic sheet is permalloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320210590 CN203250616U (en) | 2013-04-24 | 2013-04-24 | Inductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320210590 CN203250616U (en) | 2013-04-24 | 2013-04-24 | Inductor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203250616U true CN203250616U (en) | 2013-10-23 |
Family
ID=49377042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320210590 Expired - Lifetime CN203250616U (en) | 2013-04-24 | 2013-04-24 | Inductor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203250616U (en) |
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2013
- 2013-04-24 CN CN 201320210590 patent/CN203250616U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: Nanshan District Xueyuan Road in Shenzhen city of Guangdong province 518055 No. 1001 Nanshan Chi Park building B2 Patentee after: VERTIV TECH Co.,Ltd. Address before: 518057 Nanshan District science and Technology Industrial Park, Guangdong, Shenzhen Branch Road, No. Patentee before: EMERSON NETWORK POWER Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131023 |
|
| CX01 | Expiry of patent term |