CN202352464U - Transformer for low-frequency electromagnetic-induction electrodeless fluorescent lamp - Google Patents
Transformer for low-frequency electromagnetic-induction electrodeless fluorescent lamp Download PDFInfo
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- CN202352464U CN202352464U CN2011204876929U CN201120487692U CN202352464U CN 202352464 U CN202352464 U CN 202352464U CN 2011204876929 U CN2011204876929 U CN 2011204876929U CN 201120487692 U CN201120487692 U CN 201120487692U CN 202352464 U CN202352464 U CN 202352464U
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- magnetic core
- transformer
- fluorescent lamp
- frequency electromagnetic
- pedestal
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Abstract
The utility model discloses a transformer for a low-frequency electromagnetic-induction electrodeless fluorescent lamp, which comprises a seat body (1), an inductive coil (2) and a magnetic core, wherein the inductive coil (2) is arranged at the middle part of the seat body (1); the magnetic core is composed of an upper magnetic core (3) and a lower magnetic core (4) which are arranged symmetrically; the seat body (1) is provided with a through hole (5); the upper magnetic core (3) and the lower magnetic core (4) are respectively arranged into the through hole (5) from the top and the bottom of the seat body (1); and the bottom of the seat body (1) is provided with an external circuit outlet pin (6) which is connected with the inductive coil (2). The utility model can effectively lower the self loss and heating value of the transformer and the power factor compensation inductor, and enhance the conversion efficiency, reliability and service life of the ballast. Besides, the utility model can reduce the influence of the electromagnetic field generated by the transformer and the inductive coil on the operation of other circuits.
Description
Technical field
The utility model relates to a kind of transformer that is used for low frequency electromagnetic induction non-polar fluorescent lamp, belongs to the pulse transformer field.
Background technology
Lighting installation has become main energy-conservation object both at home and abroad, and lighting energy saving is mainly by changing original Inductive ballast and adopting new energy-conserving light source to realize that this dual mode all need the supporting use of electric ballast.
Electric ballast mainly is made up of electronic devices and components, and wherein critical component power factor compensation inductance and power output transformer magnetic core are Ferrite Material now.
The shortcoming one of ferrite core is that permeability is low, saturation induction density is low, loss is big, the heat of generation is big; It is the main cause of electric ballast temperature rise; Directly have influence on the transformer conversion efficiency; Have influence on the job stability and the life-span of elements such as transistor, integrated circuit, capacitor, have influence on whole efficiency and useful life; The 2nd, Curie temperature is low, is generally about 230 degree, in case reach the material Curie temperature, just can produce magnetic saturation and burn electric ballast power back-off transistor and output power transistors; The 3rd, ferrite matter is hard, crisp, and breakage rate is high, and volume is big and heavy.
Mostly existing in addition magnetic core is to be wholely set, and changes and dismantle very trouble, repairs and loses time.And how screening arrangement is not set outside the transformer, when transformer was worked, the electromagnetic field that inductance coil produces produced radiation, can impact other circuit workings.
The utility model content
The purpose of the utility model is; A kind of transformer that is used for low frequency electromagnetic induction non-polar fluorescent lamp is provided; It can effectively reduce the own loss and the caloric value of transformer, power factor compensation inductance, improves conversion efficiency, reliability and the useful life of ballast.Can also reduce of the influence of the electromagnetic field of transformer, inductance coil generation in addition, improve job stability other circuit working.
The technical scheme of the utility model: a kind of transformer that is used for low frequency electromagnetic induction non-polar fluorescent lamp; Comprise pedestal, inductance coil and magnetic core; Inductance coil is arranged on the middle part of pedestal; Magnetic core is made up of with play magnetic core the symmetrically arranged magnetic core of going up, and pedestal is provided with through hole, last magnetic core and the following magnetic core through hole of packing into from the top of pedestal and bottom respectively; The bottom of pedestal is provided with the external circuits leading foot, and the external circuits leading foot is connected with inductance coil.
The aforesaid transformer that is used for low frequency electromagnetic induction non-polar fluorescent lamp, last magnetic core all adopts the amorphous nano-crystalline magnetic material to process with following magnetic core.The amorphous nano-crystalline material possesses excellent mechanical characteristic: yield strength is high, high, the good toughness of hardness; Possess excellent electromagnetism characteristic: saturation induction density is high, permeability is high, resistivity is high; Possess excellent chemical characteristic: corrosion-resistant, ageing-resistant, and Curie temperature is high, and Heat stability is good is the magnetic material low, that intermediate frequency transformer is desirable.
The aforesaid transformer that is used for low frequency electromagnetic induction non-polar fluorescent lamp also is provided with radome on the pedestal.
The aforesaid transformer that is used for low frequency electromagnetic induction non-polar fluorescent lamp, said radome are tabular or netted.
The aforesaid transformer that is used for low frequency electromagnetic induction non-polar fluorescent lamp, radome adopt the amorphous nano-crystalline magnetic material to process.
The aforesaid transformer that is used for low frequency electromagnetic induction non-polar fluorescent lamp, the thickness of radome is more than or equal to 0.1mm.
Aforesaid amorphous nano-crystalline magnetic material is a well known materials, can on market, buy acquisition.
Compared with prior art; The utility model is because the magnetic core that has adopted the amorphous nano-crystalline magnetic material to process has improved more than 5 times than the kind heart permeability of traditional ferrite on the one hand, and core size has reduced about 50%; Weight has reduced about 50%, has reduced the volume and weight of transformer; Transformer own loss, iron loss, copper loss and caloric value have been reduced on the other hand; Curie temperature is brought up to more than 320 degree by 230 degree in addition, and permeability does not change with variations in temperature, and working environment adaptability is strong, ability reliable work under-55～+ 320 environment; Mechanical strength is high, and is not fragile, improved the stability of great-power electronic ballast greatly.
Owing to be provided with the radome that the amorphous nano peritectic alloy is made; With magnetic core and coil bulk shielding and carry out effective bonding; Reduced electromagnetic field that transformer, inductance coil produce to the ballast internal radiation; Reduced influence, improved the ballast circuit board component distribution degree of freedom and distribution density, improved electric ballast specific volume power density and job stability other circuit working.
Because the amorphous nano-crystalline material has good permeability, radome netted or the above thickness of 0.1mm can reach desirable shield effectiveness.
Description of drawings
Fig. 1 is the overall structure sketch map of the utility model;
Fig. 2 is the internal structure sketch map of the utility model;
Fig. 3 is that radome is cancellated sketch map.
Being labeled as in the accompanying drawing: 1-pedestal, 2-inductance coil, the last magnetic core of 3-, magnetic core under the 4-, 5-through hole, 6-external circuits leading foot, 7-radome.
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 depicted in figs. 1 and 2; A kind of transformer that is used for low frequency electromagnetic induction non-polar fluorescent lamp; Comprise pedestal 1, inductance coil 2 and magnetic core, inductance coil 2 is arranged on the middle part of pedestal 1, and magnetic core is made up of with following magnetic core 4 the symmetrically arranged magnetic core 3 of going up; Pedestal 1 is provided with through hole 5, last magnetic core 3 and following magnetic core 4 through hole 5 of packing into from the top of pedestal 1 and bottom respectively; The bottom of pedestal 1 is provided with external circuits leading foot 6, and external circuits leading foot 6 is connected with inductance coil 2.Also be provided with radome 7 on the pedestal 1.Radome 7 is not less than the platy structure of 0.1mm for thickness.Last magnetic core 3, magnetic core 4 and radome 7 all adopt the amorphous nano-crystalline magnetic material to process down.
The embodiment 2 of the utility model: as depicted in figs. 1 and 2; A kind of transformer that is used for low frequency electromagnetic induction non-polar fluorescent lamp; Comprise pedestal 1, inductance coil 2 and magnetic core, inductance coil 2 is arranged on the middle part of pedestal 1, and magnetic core is made up of with following magnetic core 4 the symmetrically arranged magnetic core 3 of going up; Pedestal 1 is provided with through hole 5, last magnetic core 3 and following magnetic core 4 through hole 5 of packing into from the top of pedestal 1 and bottom respectively; The bottom of pedestal 1 is provided with external circuits leading foot 6, and external circuits leading foot 6 is connected with inductance coil 2.Also be provided with radome 7 on the pedestal 1.
As shown in Figure 3, radome 7 is a network structure.Last magnetic core 3, magnetic core 4 and radome 7 all adopt the amorphous nano-crystalline magnetic material to process down.
Used amorphous nano-crystalline magnetic material is a well known materials among aforementioned each embodiment, can on market, buy acquisition.
Claims (6)
1. transformer that is used for low frequency electromagnetic induction non-polar fluorescent lamp; Comprise pedestal (1), inductance coil (2) and magnetic core; Inductance coil (2) is arranged on the middle part of pedestal (1); It is characterized in that: magnetic core is gone up magnetic core (3) and following magnetic core (4) is formed by symmetrically arranged, and pedestal (1) is provided with through hole (5), last magnetic core (3) and following magnetic core (4) through hole (5) of packing into from the top of pedestal (1) and bottom respectively; The bottom of pedestal (1) is provided with external circuits leading foot (6), and external circuits leading foot (6) is connected with inductance coil (2).
2. the transformer that is used for low frequency electromagnetic induction non-polar fluorescent lamp according to claim 1 is characterized in that: go up magnetic core (3) and following magnetic core (4) and all adopt the amorphous nano-crystalline magnetic material to process.
3. the transformer that is used for low frequency electromagnetic induction non-polar fluorescent lamp according to claim 1 and 2 is characterized in that: also be provided with radome (7) on the pedestal (1).
4. the transformer that is used for low frequency electromagnetic induction non-polar fluorescent lamp according to claim 3 is characterized in that: said radome (7) is for tabular or netted.
5. the transformer that is used for low frequency electromagnetic induction non-polar fluorescent lamp according to claim 4 is characterized in that: radome (7) adopts the amorphous nano-crystalline magnetic material to process.
6. the transformer that is used for low frequency electromagnetic induction non-polar fluorescent lamp according to claim 5 is characterized in that: the thickness of radome (7) is more than or equal to 0.1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204876929U CN202352464U (en) | 2011-11-30 | 2011-11-30 | Transformer for low-frequency electromagnetic-induction electrodeless fluorescent lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204876929U CN202352464U (en) | 2011-11-30 | 2011-11-30 | Transformer for low-frequency electromagnetic-induction electrodeless fluorescent lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202352464U true CN202352464U (en) | 2012-07-25 |
Family
ID=46541449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204876929U Expired - Fee Related CN202352464U (en) | 2011-11-30 | 2011-11-30 | Transformer for low-frequency electromagnetic-induction electrodeless fluorescent lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202352464U (en) |
-
2011
- 2011-11-30 CN CN2011204876929U patent/CN202352464U/en not_active Expired - Fee Related
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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 |