CN202111063U - Shield type low-frequency electrodeless induction lamp - Google Patents
Shield type low-frequency electrodeless induction lamp Download PDFInfo
- Publication number
- CN202111063U CN202111063U CN2011202659091U CN201120265909U CN202111063U CN 202111063 U CN202111063 U CN 202111063U CN 2011202659091 U CN2011202659091 U CN 2011202659091U CN 201120265909 U CN201120265909 U CN 201120265909U CN 202111063 U CN202111063 U CN 202111063U
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- bulb
- magnetic core
- induction coil
- shield type
- type low
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Abstract
The utility model relates to a shield type low-frequency electrodeless induction lamp, which comprises a high-frequency generator, a coupler and a bulb. The coupler comprises a ferrite magnetic core on the bulb and an induction coil wound on the ferrite magnetic core, the induction coil and the high-frequency generator are connected through a wire, the bulb is provided with a bulb shell filled with low-pressure mercury and inert gas, a main amalgam and an auxiliary amalgam are arranged on the bulb shell, and reflective type electromagnetic wave shielding coatings are coated on surfaces of the ferrite magnetic core and the induction coil. The shield type low-frequency electrodeless induction lamp is simple in structure and convenient in manufacturing, and interference sources are enclosed by the shielding coatings so that interference electromagnetic fields are prevented from diffusing outwards. A system can be protected from being affected by external electromagnetic fields since the system is enclosed by the shielding coatings.
Description
Technical field
The utility model relates to a kind of shield type low frequency electrodeless sense light.
Background technology
Electrodeless lamp belong to the 4th generation illuminating product; No filament, electrodeless be the abbreviation of electrode-less gas discharge fluorescent lamp, electrodeless lamp is the new high-tech product that the up-to-date scientific and technological achievements in field such as Application Optics, power electronics, plasma, magnetic material are developed out.The characteristics that long-life, high light efficiency, high-color rendering are arranged.Electrodeless lamp is made up of radio-frequency generator, coupler and bulb three parts.It is that electromagnetic field through radio-frequency generator is coupled in the lamp with the mode of induction, makes the gas avalanche ionization in the bulb, forms plasma.The plasma-excited atom gives off ultraviolet ray when returning ground state.The fluorescent material of bulb inner wall receives ultraviolet ray excited generation visible light.Electrodeless lamp is divided into HF lamp without electrodes and low frequency electrodeless lamp, and its principle of luminosity is the same basically, but very big difference is also arranged.The developing direction of electrodeless lamp is lower frequency, the longer life-span.No matter the high frequency low frequency all need detect through electromagnetic interference (EMI) electrodeless lamp product.
Radio-frequency generator is that coupler provides a high-frequency energy to excite and keeps the gas discharge in the bulb; In radio-frequency generator input bulb, it mainly comprises magnetic core and the induction coil on the magnetic core to coupler energy, and induction coil is connected through cable with radio-frequency generator, and the effect of induction coil and magnetic core is the generation high frequency magnetic field; Bulb mainly is a glass bulb, mainly comprises the cell-shell that scribbles diaphragm and three primary colors fluorescent powder, interior pipe, amalgam, Auxiliary amalgam and lamp holder, and inside is filled with low-pressure mercury and inert buffer gas.Two kinds of amalgam are arranged in the electrodeless lamp, and main amalgam is arranged in the short tube of cell-shell bottom, in case the lamp steady operation it mercury atom just is provided.It is online that Auxiliary amalgam is placed on an indium of being close to cavity, and the indium net is contacted with heat discharge, and mercury atom is evaporated from Auxiliary amalgam very soon during energising, and when power-off, the indium net cools off fast, collected most of mercury atom in the bulb, in order to starting next time.Main amalgam is guaranteed the stable light output of maintenance in a wider temperature range, and Auxiliary amalgam guarantees to export fast and stable.
Electrodeless lamp all can produce the reciprocation that absorbs energy (eddy current loss), reflected energy (electromagnetic wave is at the boundary reflection on the baffle) and offset energy (electromagnetic induction produces reverse electromagnetic field on shielding layer, can offset part and disturb electromagnetic wave) from the interference electromagnetic wave and the internal electrical magnetic wave of outsides such as lead inductance.
Therefore, available baffle is surrounded interference source, prevents that interfere with electromagnetic field is to outdiffusion (EMI suppression); And with baffle system is surrounded, prevent that them from receiving the influence of external electromagnetic field (anti-EMC).Therefore can solve the electromagnetic problem of baffle: when the frequency of interfere with electromagnetic field is higher, utilize the eddy current that produces in the metal material of low-resistivity, form and externally come electromagnetic negative function, thereby reach the effect of covering.
The utility model content
The technical problem that the utility model will solve is: in order to solve the deficiency of prior art; The utility model provides a kind of shield type low frequency electrodeless sense light; The surface of iron oxygen magnetic core and induction coil scribbles reflection-type electromagnetic wave shielding coating; Interference source is surrounded, prevents that interfere with electromagnetic field is to outdiffusion (EMI suppression); And with curtain coating system is surrounded, prevent that them from receiving the influence of external electromagnetic field (anti-EMC).
The utility model solves the technical scheme that its technical problem adopted: a kind of shield type low frequency electrodeless sense light; Comprise radio-frequency generator, coupler and bulb; Coupler comprises the iron oxygen magnetic core that is arranged on the bulb and the induction coil on the iron oxygen magnetic core; Induction coil is connected through lead with radio-frequency generator, and bulb has cell-shell, is filled with low-pressure mercury and inert gas in the cell-shell; Have main amalgam and Auxiliary amalgam on the cell-shell, the surface of described iron oxygen magnetic core and induction coil scribbles reflection-type electromagnetic wave shielding coating.With curtain coating interference source is surrounded, prevents that interfere with electromagnetic field is to outdiffusion (EMI suppression); And with curtain coating system is surrounded, prevent that them from receiving the influence of external electromagnetic field (anti-EMC).
As preferably, described reflection-type electromagnetic wave shielding coating is a silver-bearing copper medium anti electromagnetic wave shielding coating, resistivity＜8.0 * 10 of silver-bearing copper medium anti electromagnetic wave shielding coating
-5Ω cm covers efficient and reaches 40～75db.
The beneficial effect of the utility model is that the shield type low frequency electrodeless sense light of the utility model is simple in structure, easily manufactured, with curtain coating interference source is surrounded, and prevents that interfere with electromagnetic field is to outdiffusion (EMI suppression); And with curtain coating system is surrounded, prevent that them from receiving the influence of external electromagnetic field (anti-EMC).Therefore can solve the electromagnetic problem of curtain coating: when the frequency of interfere with electromagnetic field is higher, utilize the eddy current that produces in the metal material of low-resistivity, form and externally come electromagnetic negative function, thereby reach the effect of covering.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
Fig. 1 is the structural representation of the shield type low frequency electrodeless sense light most preferred embodiment of the utility model;
Fig. 2 is the structural representation of the said coupler of the utility model.
Among the figure: 1. coupler, 11. iron oxygen magnetic cores, 12. induction coils, 2. bulb, 22. Auxiliary amalgams, 3. reflection-type electromagnetic wave shielding coating.
Embodiment
Combine accompanying drawing that the utility model is done further detailed explanation now.These accompanying drawings are the sketch map of simplification, the basic structure of the utility model only is described in a schematic way, so it only show the formation relevant with the utility model.
Fig. 1 Fig. 2 is the shield type low frequency electrodeless sense light most preferred embodiment of the utility model; Comprise radio-frequency generator, coupler 1 and bulb 2; Coupler 1 comprises the iron oxygen magnetic core 11 that is arranged on the bulb 2 and the induction coil 12 on the iron oxygen magnetic core 11, and induction coil 12 is connected through lead with radio-frequency generator, and bulb 2 has cell-shell; Be filled with low-pressure mercury and inert gas in the cell-shell; Have main amalgam and Auxiliary amalgam 22 on the cell-shell, the surface of iron oxygen magnetic core 11 and induction coil 12 scribbles reflection-type electromagnetic wave shielding coating 3, and reflection-type electromagnetic wave shielding coating 3 is a silver-bearing copper medium anti electromagnetic wave shielding coating.
With above-mentioned desirable embodiment according to the utility model is enlightenment, and through above-mentioned description, the related work personnel can carry out various change and modification fully in the scope that does not depart from this utility model technological thought.The technical scope of this utility model is not limited to the content on the specification, must confirm its technical scope according to the claim scope.
Claims (2)
1. shield type low frequency electrodeless sense light; Comprise radio-frequency generator, coupler (1) and bulb (2); Coupler (1) comprises the iron oxygen magnetic core (11) that is arranged on the bulb (2) and the induction coil (12) on the iron oxygen magnetic core (11); Induction coil (12) is connected through lead with radio-frequency generator, and bulb (2) has cell-shell, is filled with low-pressure mercury and inert gas in the cell-shell; Have main amalgam and Auxiliary amalgam (22) on the cell-shell, it is characterized in that: the surface of described iron oxygen magnetic core (11) and induction coil (12) scribbles reflection-type electromagnetic wave shielding coating (3).
2. shield type low frequency electrodeless sense light as claimed in claim 1 is characterized in that: described reflection-type electromagnetic wave shielding coating (3) is a silver-bearing copper medium anti electromagnetic wave shielding coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202659091U CN202111063U (en) | 2011-07-25 | 2011-07-25 | Shield type low-frequency electrodeless induction lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202659091U CN202111063U (en) | 2011-07-25 | 2011-07-25 | Shield type low-frequency electrodeless induction lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202111063U true CN202111063U (en) | 2012-01-11 |
Family
ID=45436517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202659091U Expired - Fee Related CN202111063U (en) | 2011-07-25 | 2011-07-25 | Shield type low-frequency electrodeless induction lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202111063U (en) |
-
2011
- 2011-07-25 CN CN2011202659091U patent/CN202111063U/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: 20120111 Termination date: 20140725 |
|
| EXPY | Termination of patent right or utility model |