CN201039660Y - Filter and its casing - Google Patents
Filter and its casing Download PDFInfo
- Publication number
- CN201039660Y CN201039660Y CNU2007201403325U CN200720140332U CN201039660Y CN 201039660 Y CN201039660 Y CN 201039660Y CN U2007201403325 U CNU2007201403325 U CN U2007201403325U CN 200720140332 U CN200720140332 U CN 200720140332U CN 201039660 Y CN201039660 Y CN 201039660Y
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- housing
- coil
- those
- filter
- wound
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Abstract
The utility model discloses a filter, comprising at least on an iron core, at least one shell, at least a first coil and at least a second coil. The shell is covered on the iron core, and a plurality of protuberances are shaped at the peripheral margin of the shell. The shell is divided into a plurality of winding areas by the protuberances; the first coil is wound in at least two winding areas and the second coil is wound in at least two winding areas.
Description
Technical field
The utility model relates to a kind of filter and housing thereof, particularly relates to frequency bandwidth height, strong filter and the housing thereof of filter Electromagnetic Interference effect.
Background technology
A lot of electronic components are installed in electric equipment products, each electronic component can produce a large amount of Electromagnetic Interference (EMI), not only seriously disturb the running of each electronic component itself, also can seriously disturb the circuit in the electric equipment products, even cause the damage or the fault of electric equipment products.When electromagnetic interference is serious, also can cause other electric equipment products abnormal operation or damages.
For this reason, in general electric equipment products, high frequency filter can be installed, in the hope of reducing the electromagnetic interference in the electric equipment products.Existing high frequency filter is made up of an annular core, the two coil that coats an annular lid of this annular core and closely twine these annular lid both sides respectively.Yet this kind high frequency filter exists because of there is no any winding gap between each lateral coil, and not only the impedance frequency broadband is less, and only can filter the Electromagnetic Interference of certain limit.
Yet along with the miniaturization and the circuit productive setization of electric equipment products, the impedance frequency broadband that is produced during the electric equipment products running increases considerably, and Electromagnetic Interference also strengthens significantly.Therefore, existing traditional high frequency filter is impedance frequency broadband wretched insufficiency not only, and can't obtain enough Electromagnetic Interference filter effects, still have no small Electromagnetic Interference to produce in the electric equipment products operation now and cause, and then reduce useful life of electric equipment products, even influence the running and the life-span of other electric equipment products.
The utility model content
The purpose of this utility model is to propose a kind of filter and housing thereof, significantly improving filtrable impedance frequency broadband and Electromagnetic Interference filter effect, and then improves the useful life of electric equipment products and avoids other electric equipment products running and the influence in life-span.
The purpose of this utility model is achieved in that promptly provides a kind of filter, and it comprises at least one iron core, at least one housing, at least the first coil and at least one second coil.This housing coats this iron core, and this housing periphery is formed with a plurality of projections.This housing is separated into a plurality of windings interval by those projections, and this first coil is wound in 2 these winding intervals at least, and this second coil is wound in 2 these winding intervals at least.
For this reason, the utility model provides a kind of filter in addition, and it comprises at least one iron core, at least one housing, at least one coil.This housing coats this iron core, and this housing periphery is formed with a plurality of projections.This housing is separated into a plurality of windings interval by those projections, and this coil is wound in those and twines in intervals.
The utility model provides a kind of filter housing in addition, comprises at least one body and is positioned at a plurality of projections of this body periphery, and is interval in order to this body is separated into a plurality of windings, is wound in those respectively at least one coil and twines in intervals.
On the aforementioned housing, more can comprise at least one baffler, in order to intercept this first coil and this second coil.This baffler is can be with this housing one-body molded or be isolating construction.
Advantage of the present utility model is, its filter is interval because of the projection of housing is divided into a plurality of windings with coil area, thus the impedance frequency bandwidth of each coil significantly increased, and then can be under the effect of 2 coils, filter far Electromagnetic Interference amount above prior art.So, the utility model filter not only can significantly improve the electric equipment products useful life that this filter is installed, and can also avoid influencing other electric equipment products running and life-spans.
For above-mentioned and other purposes of the present utility model, feature and advantage can be become apparent, a preferred embodiment cited below particularly, and cooperate appended graphicly, be described in detail below:
Description of drawings
Fig. 1 is the schematic diagram of the utility model one preferred embodiment filter housing.
The main element symbol description:
100: 102: the first sides of filter housing
Side 106,108 in 104: the second: baffler
110: projection
Embodiment
Fig. 1 illustrates the schematic diagram of the utility model one preferred embodiment filter housing.Please refer to Fig. 1, the utility model filter housing 100 comprises at least one body and a plurality of projection 110.
This body has first side 102 and second side 104.In addition, can be wound with at least one coil respectively in this first side 102 and this second side 104, and this coil number is 2,3 or 3 when above, those coils are not electrically connected on this body mutually.And have more at least one iron core in this filter housing 100, and this iron core and aforementioned coil interact and reach the effect of filtering Electromagnetic Interference.The shape of this body can be annular solids such as annulus, elliptical ring or polygon ring.The material of this body can be plastic cement or metal.
Those projections 110 are positioned at this body periphery, and are interval in order to this body is separated into a plurality of windings, are wound in those respectively for aforementioned coil and twine in the interval.When aforementioned coil number is 2,3 or 3 when above, each aforementioned coil is wound at least two respectively and twines in the intervals.Those projections 110 are preferably and are symmetric arrays.When those projections 110 are symmetric arrays, can make the interval size of aforementioned winding close, and can improve the impedance frequency bandwidth equably, and then can significantly improve filtrable electromagnetic wave amount.
In addition, the number of those projections 110 is got over for a long time, and the interval number of the winding of aforementioned coil also can increase thereupon, and can improve the impedance frequency bandwidth, and then increases filtrable electromagnetic wave amount.In addition, the material of those projections 110 can be plastic cement or metal.The material of those projections 110 can be identical with this body, also can be different.Those projections 110 can with this this body by integral forming, can be separate structure also with this body.When those projections 110 were separate with this body, those projections 110 were assembled on this body.
This filter housing 100 more comprises at least one baffler, in order to be located between the aforementioned coil and to separate aforementioned coil.This baffler can be the baffler 106 that is located immediately on this body, also can be the baffler 108 of cross-section this body annular hollow part, also can be the form that has this baffler 106 and this baffler 108 simultaneously concurrently.No matter be this baffler 106 or this baffler 108, all be in order to intercept different coil, to assist to separate out the coiling position of different coil.The material of this baffler 106 or this baffler 108 can be plastic cement or metal.The material of this baffler 106 or this baffler 108 can be identical with this body, also can be different.This baffler 106 or this baffler 108 can with this this body by integral forming, can be separate structure also with this body.
In addition, this filter housing 100 also can be that a plurality of shell structures combine.At this moment, this iron core will be easier to be coated by this filter housing 100.
Claims (16)
1. a filter housing is characterized in that, comprising: at least one body; A plurality of projections are positioned at this body periphery, and are interval in order to this body is separated into a plurality of windings, are wound in those respectively at least one coil and twine in the interval.
2. filter housing as claimed in claim 1 is characterized in that, those projections and this body is formed in one or absolute construction.
3. filter housing as claimed in claim 1 is characterized in that, this coil number is 2 or 2 when above, each those coil be wound in respectively at least two those twine in intervals.
4. filter housing as claimed in claim 3 is characterized in that, more comprises at least one baffler, between those coils, in order to separate those coils.
5. filter housing as claimed in claim 4 is characterized in that, the material of this baffler is plastic cement or metal.
6. filter housing as claimed in claim 4 is characterized in that, this baffler is located immediately on this body, cross-section this body annular hollow part or be located immediately on this body and cross-section this body annular hollow part.
7. filter housing as claimed in claim 1 is characterized in that those projections are symmetric arrays.
8. filter housing as claimed in claim 1 is characterized in that, the material of this body or this projection is plastic cement or metal.
9. a filter is characterized in that, comprising: at least one iron core; At least one housing coats this iron core, and this housing periphery has a plurality of projections, and it is interval that those projections are separated into a plurality of windings with this housing; At least one coil is wound in this housing, and this coil is wound in respectively in those winding intervals.
10. filter as claimed in claim 9 is characterized in that, this coil number is 2 or 2 when above, each those coil be wound in respectively at least two those twine in intervals.
11. filter as claimed in claim 10 is characterized in that, more comprises at least one baffler, between those coils, in order to separate those coils.
12. a filter is characterized in that, comprising: at least one iron core; At least one housing coats this iron core, and this housing periphery has a plurality of projections, and it is interval that those projections are separated into a plurality of windings with this housing; At least one first coil, be wound in this housing one side and be wound in respectively at least two those twine in intervals; And at least one second coil, be wound in this housing opposite side and be wound in respectively at least two those twine in intervals.
13., it is characterized in that those projections and this housing is formed in one or absolute construction as claim 9 or 12 described filters.
14. filter as claimed in claim 12 is characterized in that, more comprises at least one baffler, between this first coil and this second coil, in order to separate those coils.
15., it is characterized in that this baffler is located immediately on this housing, cross-section this housing annular hollow part or be located immediately on this housing and cross-section this housing annular hollow part as claim 11 or 14 described filters.
16., it is characterized in that the material of this housing or this projection is plastic cement or metal as claim 9 or 12 described filters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201403325U CN201039660Y (en) | 2007-04-11 | 2007-04-11 | Filter and its casing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201403325U CN201039660Y (en) | 2007-04-11 | 2007-04-11 | Filter and its casing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201039660Y true CN201039660Y (en) | 2008-03-19 |
Family
ID=39212190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201403325U Expired - Fee Related CN201039660Y (en) | 2007-04-11 | 2007-04-11 | Filter and its casing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201039660Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101997505A (en) * | 2009-08-27 | 2011-03-30 | 鸿富锦精密工业（深圳）有限公司 | Filter |
| CN101997504A (en) * | 2009-08-24 | 2011-03-30 | 鸿富锦精密工业（深圳）有限公司 | Filter |
| CN102195467A (en) * | 2011-06-01 | 2011-09-21 | 江苏泰昌电子有限公司 | Sunk plate type filter |
| CN105336475A (en) * | 2014-06-03 | 2016-02-17 | 中达电子(江苏)有限公司 | Switching power supply, EMI filter, common mode inductor and coiling method thereof |
| CN105336476A (en) * | 2014-06-03 | 2016-02-17 | 中达电子(江苏)有限公司 | Switching power supply, EMI filter, common mode inductor and coiling method thereof |
| CN105788804A (en) * | 2014-12-23 | 2016-07-20 | 台达电子工业股份有限公司 | Magnetic assembly suitable for bank winding process |
| CN107195428A (en) * | 2017-06-27 | 2017-09-22 | 山东中瑞电子股份有限公司 | The EMI common mode inductances and its winding method of new winding |
-
2007
- 2007-04-11 CN CNU2007201403325U patent/CN201039660Y/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101997504A (en) * | 2009-08-24 | 2011-03-30 | 鸿富锦精密工业（深圳）有限公司 | Filter |
| CN101997504B (en) * | 2009-08-24 | 2015-04-15 | 南陵县生产力促进中心 | Filter |
| CN101997505A (en) * | 2009-08-27 | 2011-03-30 | 鸿富锦精密工业（深圳）有限公司 | Filter |
| CN101997505B (en) * | 2009-08-27 | 2015-04-08 | 南陵县生产力促进中心 | Filter |
| CN102195467A (en) * | 2011-06-01 | 2011-09-21 | 江苏泰昌电子有限公司 | Sunk plate type filter |
| CN105336476A (en) * | 2014-06-03 | 2016-02-17 | 中达电子(江苏)有限公司 | Switching power supply, EMI filter, common mode inductor and coiling method thereof |
| CN105336475A (en) * | 2014-06-03 | 2016-02-17 | 中达电子(江苏)有限公司 | Switching power supply, EMI filter, common mode inductor and coiling method thereof |
| US9859866B2 (en) | 2014-06-03 | 2018-01-02 | Delta Electronics (Jiangsu) Ltd. | Switching power supply, EMI filter, common mode inductor and wrapping method for the common mode inductor |
| CN105336475B (en) * | 2014-06-03 | 2018-01-30 | 中达电子(江苏)有限公司 | Switching Power Supply, electromagnetic interface filter, common-mode inductor and its method for coiling |
| CN105336476B (en) * | 2014-06-03 | 2018-01-30 | 中达电子(江苏)有限公司 | Switching Power Supply, electromagnetic interface filter, common-mode inductor and its method for winding |
| TWI621138B (en) * | 2014-06-03 | 2018-04-11 | 中達電子（江蘇）有限公司 | Switching power supply, emi filter, common mode inductor and winding method thereof |
| US10090100B2 (en) | 2014-06-03 | 2018-10-02 | Delta Electronics (Jiangsu) Ltd. | Switching power supply, EMI filter, common mode inductor and wrapping method for the common mode inductor |
| CN105788804A (en) * | 2014-12-23 | 2016-07-20 | 台达电子工业股份有限公司 | Magnetic assembly suitable for bank winding process |
| CN107195428A (en) * | 2017-06-27 | 2017-09-22 | 山东中瑞电子股份有限公司 | The EMI common mode inductances and its winding method of new winding |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080319 Termination date: 20140411 |