CN202352435U - Electromagnetic filtering inductance device - Google Patents
Electromagnetic filtering inductance device Download PDFInfo
- Publication number
- CN202352435U CN202352435U CN2011204904204U CN201120490420U CN202352435U CN 202352435 U CN202352435 U CN 202352435U CN 2011204904204 U CN2011204904204 U CN 2011204904204U CN 201120490420 U CN201120490420 U CN 201120490420U CN 202352435 U CN202352435 U CN 202352435U
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- inductance
- electromagnetic
- filtering
- inductance device
- magnetic core
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Abstract
The utility model discloses an electromagnetic filtering inductance device, which comprises an inductance magnetic core (1), an electromagnetic inductance coil (2) and two fixed supporting legs (3), wherein the electromagnetic inductance coil (2) is wound outside the inductance magnetic core (1); the two fixed supporting legs (3) are led out of the electromagnetic inductance coil (2) at the lower end of the inductance magnetic core (1); a nameplate (4) is arranged on the top of the inductance magnetic core (1); and the inductance magnetic core (1) is made of an amorphous nanocrystalline material. The electromagnetic filtering inductance device is provided with an identifier, can be conveniently taken and used, has the advantages of high magnetic conductivity, high saturation flux density, high Curie temperature, high intensity, high hardness, good toughness, small volume and light weight, and is difficult to damage; and moreover, the loss of the electromagnetic filtering inductance device is reduced, conduction efficiency is improved, the harmful heat of the electromagnetic filtering inductance device during operation is reduced, and the service life of an electronic ballast is prolonged.
Description
Technical field
The utility model relates to a kind of em filtering inductance device, belongs to the electromagnetic compatibility technology field.
Background technology
About low frequency electromagnetic induction non-polar electronic ballast for fluoresent lamp operating frequency 250KHz, for improving the electric ballast conversion efficiency, circuit design is to adopt on off state work basically; If it is bad that electromagnetic compatibility problem is handled; Electric ballast will produce serious electromagnetic noise interference, through conduction pattern, utility grid is polluted; Miscellaneous equipment is caused interference, and civil power or other interference simultaneously also can have influence on the functional reliability of electric ballast.The electromagnetic interference that the electrodeless fluorescent lamp electronic ballast produces mainly is common mode disturbances and DM EMI, need add anti-interference filter at the power input mouth, and bidirectional filtering is carried out in inside and outside interference.The element of forming filter mainly is filter inductance and capacitor.
The filter inductance magnetic core of electrodeless florescent lamp use now is sign not; Be easy to take mistake; The temporary mark that sticks also is easy to come off, and simultaneously inductance core is Ferrite Material, problem such as exist that magnetic permeability is low, saturation induction density is low, Curie temperature is low, loss is big and efficient is low; It is bigger to produce harmful heat during work, has influence on electric ballast bulk temperature and useful life.Particularly when operating voltage was relatively lower, the electric current that flows through filter increased, and caloric value rises rapidly, becomes one of main heat generation source of electric ballast, and in fact the shared ballast of some 220V and 110V alternating voltage can not work long hours.And Ferrite Material physique is hard, crisp, and poor toughness is damaged easily.The ferrite core volume is big and heavy, has occupied limited space in the electric ballast machine box, has increased the volume and weight of electric ballast, has increased the cost of ballast.
The utility model content
The purpose of the utility model is, a kind of em filtering inductance device is provided, and itself has sign, conveniently takes.It has the magnetic permeability height simultaneously, saturation induction density is big, Curie temperature is high, intensity is high, hardness is high, good toughness; Non-damageable advantage, and reduced own loss, improved conduction efficiency; Harmful heat when having reduced work simultaneously, the useful life of having improved electric ballast; Also has the little and lightweight advantage of own vol in addition.
The technical scheme of the utility model: a kind of em filtering inductance device; Comprise inductance core, electromagnetic induction coil and fixed feet; The inductance core outside is tied with electromagnetic induction coil, draws two fixed feet in the inductance core lower end by electromagnetic induction coil, is provided with nameplate on the inductance core top; Inductance core is processed by the amorphous nano-crystalline material.Owing to be provided with nameplate, during convenient the use to the differentiation of model; Owing to used the amorphous nano-crystalline material, improved magnetic permeability, saturation induction density and Curie temperature, reduced loss own, improved conduction efficiency, the harmful heat when having reduced work simultaneously, the useful life of having improved electric ballast; Amorphous nano-crystalline material yield intensity is high, high, the good toughness of hardness, and is not fragile more; Reduced own vol and weight simultaneously, made the ballast overall volume be able to dwindle.
In the aforesaid this em filtering inductance device, inductance core is an annular or square.
In the aforesaid this em filtering inductance device, the electromagnetic induction coil outside is provided with tabular radome or mesh shields cover.
In the aforesaid this em filtering inductance device, the thickness of tabular radome and mesh shields cover is 0.1～0.3 millimeter.
In the aforesaid this em filtering inductance device, the thickness of tabular radome and mesh shields cover is 0.2 millimeter.
In the aforesaid this em filtering inductance device, tabular radome and mesh shields cover are processed by the amorphous nano-crystalline material.Owing to use the amorphous nano-crystalline material to do tabular radome or mesh shields cover, saved the material of radome, make very thin that radome can make, reduced the weight of ballast.
In the aforesaid this em filtering inductance device, fillet is all adopted in the inside and outside corner of inductance core.Owing to adopt fillet, overcome 90 ° of angles and be prone to produce the defective of electromagnetic radiation.
Aforesaid amorphous nano-crystalline material is a well known materials, can on market, buy acquisition.
Compared with prior art owing to be provided with nameplate, during convenient the use to the differentiation of model; Owing to used the amorphous nano-crystalline material, improved magnetic permeability, saturation induction density and Curie temperature, reduced loss own, improved conduction efficiency, the harmful heat when having reduced work simultaneously, the useful life of having improved electric ballast; Amorphous nano-crystalline material yield intensity is high, high, the good toughness of hardness, and is not fragile more; Reduced own vol and weight simultaneously, made the ballast overall volume be able to dwindle; Owing to use the amorphous nano-crystalline material to do tabular radome or mesh shields cover, saved the material of radome, make very thin that radome can make, reduced the weight of ballast; Owing to adopt fillet, overcome 90 ° of angles and be prone to produce the defective of electromagnetic radiation.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the structural representation of the square inductance core of the utility model;
Fig. 3 is the partial sectional view that the utility model uses tabular radome;
Fig. 4 is the partial sectional view that the utility model uses the mesh shields cover;
Fig. 5 is the structural representation of the utility model annular inductance core.
Being labeled as in the accompanying drawing: 1-inductance core, 2-electromagnetic induction coil, 3-fixed feet, 4-nameplate, the tabular radome of 5-, 6-mesh shields cover.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is done further to specify, but not as the foundation of the utility model being done any restriction.
The embodiment 1 of the utility model: as shown in Figure 1; A kind of em filtering inductance device; Comprise inductance core 1, electromagnetic induction coil 2 and fixed feet 3, inductance core 1 outside is tied with electromagnetic induction coil 2, draws two fixed feet 3 in inductance core 1 lower end by electromagnetic induction coil 2; Be provided with nameplate 4 on inductance core 1 top, inductance core 1 is the amorphous nano-crystalline material.Inductance core 1 is an annular.
As shown in Figure 3, electromagnetic induction coil 2 outsides are provided with tabular radome 5, and tabular radome 5 thickness are 0.1 millimeter, and tabular radome 5 is the amorphous nano-crystalline material.
As shown in Figure 5, fillet is all adopted in inductance core 1 inside and outside corner.
The embodiment 2 of the utility model: as shown in Figure 1; A kind of em filtering inductance device; Comprise inductance core 1, electromagnetic induction coil 2 and fixed feet 3, inductance core 1 outside is tied with electromagnetic induction coil 2, draws two fixed feet 3 in inductance core 1 lower end by electromagnetic induction coil 2; Be provided with nameplate 4 on inductance core 1 top, inductance core 1 is the amorphous nano-crystalline material.
As shown in Figure 2, inductance core 1 is square.
As shown in Figure 3, electromagnetic induction coil 2 outsides are provided with tabular radome 5, and tabular radome 5 thickness are 0.2 millimeter, and tabular radome 5 is the amorphous nano-crystalline material.
As shown in Figure 5, fillet is all adopted in inductance core 1 inside and outside corner.
The embodiment 3 of the utility model: as shown in Figure 1; A kind of em filtering inductance device; Comprise inductance core 1, electromagnetic induction coil 2 and fixed feet 3, inductance core 1 outside is tied with electromagnetic induction coil 2, draws two fixed feet 3 in inductance core 1 lower end by electromagnetic induction coil 2; Be provided with nameplate 4 on inductance core 1 top, inductance core 1 is the amorphous nano-crystalline material.
As shown in Figure 2, inductance core 1 is square.
As shown in Figure 4, electromagnetic induction coil 2 outsides are provided with mesh shields cover 6, and mesh shields cover 6 thickness are 0.3 millimeter, and mesh shields cover 6 is the amorphous nano-crystalline material.
As shown in Figure 5, fillet is all adopted in inductance core 1 inside and outside corner.
Employed amorphous nano-crystalline material can be bought acquisition in the foregoing description on market.
Claims (7)
1. em filtering inductance device; Comprise inductance core (1), electromagnetic induction coil (2) and fixed feet (3); Inductance core (1) outside is tied with electromagnetic induction coil (2); Draw two fixed feet (3) in inductance core (1) lower end by electromagnetic induction coil (2), it is characterized in that: be provided with nameplate (4) on inductance core (1) top; Inductance core (1) is processed by the amorphous nano-crystalline material.
2. a kind of em filtering inductance device according to claim 1 is characterized in that: inductance core (1) is annular or square.
3. a kind of em filtering inductance device according to claim 1 is characterized in that: electromagnetic induction coil (2) outside is provided with tabular radome (5) or mesh shields cover (6).
4. a kind of em filtering inductance device according to claim 3 is characterized in that: the thickness of tabular radome (5) and mesh shields cover (6) is 0.1～0.3 millimeter.
5. a kind of em filtering inductance device according to claim 4 is characterized in that: the thickness of tabular radome (5) and mesh shields cover (6) is 0.2 millimeter.
6. a kind of em filtering inductance device according to claim 5 is characterized in that: tabular radome (5) and mesh shields cover (6) are processed by the amorphous nano-crystalline material.
7. a kind of em filtering inductance device according to claim 1 is characterized in that: fillet is all adopted in the inside and outside corner of inductance core (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204904204U CN202352435U (en) | 2011-11-30 | 2011-11-30 | Electromagnetic filtering inductance device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204904204U CN202352435U (en) | 2011-11-30 | 2011-11-30 | Electromagnetic filtering inductance device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202352435U true CN202352435U (en) | 2012-07-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204904204U Expired - Fee Related CN202352435U (en) | 2011-11-30 | 2011-11-30 | Electromagnetic filtering inductance device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202352435U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103943308A (en) * | 2014-04-22 | 2014-07-23 | 安徽众恒复合材料科技有限公司 | Choking coil |
-
2011
- 2011-11-30 CN CN2011204904204U patent/CN202352435U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103943308A (en) * | 2014-04-22 | 2014-07-23 | 安徽众恒复合材料科技有限公司 | Choking coil |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20120725 Termination date: 20141130 |
|
| EXPY | Termination of patent right or utility model |