CN2381019Y - High-frequency electrode-free low-voltage discharge lamp - Google Patents
High-frequency electrode-free low-voltage discharge lamp Download PDFInfo
- Publication number
- CN2381019Y CN2381019Y CN 99218123 CN99218123U CN2381019Y CN 2381019 Y CN2381019 Y CN 2381019Y CN 99218123 CN99218123 CN 99218123 CN 99218123 U CN99218123 U CN 99218123U CN 2381019 Y CN2381019 Y CN 2381019Y
- Authority
- CN
- China
- Prior art keywords
- coil
- magnet exciting
- high frequency
- frequency electrode
- ignition coil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Circuit Arrangements For Discharge Lamps (AREA)
Abstract
The utility model discloses a high-frequency electrode-free low-voltage discharge lamp, which has high ignition performance and can effectively ignite in a low voltage state. The high-frequency electrode-free low-voltage discharge lamp comprises a discharge bulb which is closed in an airtight mode; the discharge bulb is filled with at least one kind of metal vapour and one kind of rare gas, and one end of the discharge bulb is provided with a groove; the groove is provided with two coils; the two coils are composed of an ignition coil used for glow starting and an excitation coil used for excitation; both ends of the excitation coil are connected to a high frequency power source; both ends of the ignition coil are respectively connected with an antenna; the number of turns of the ignition coil is three times to ten times of the number of turns of the excitation coil.
Description
The utility model relates to the lamp of no any electrode in the shell, refers to by external electromagnetic field excitation blanketing gas alight, specifically a kind of high frequency electrode-free low-pressure discharge lamp especially.
Existing high frequency electrode-free low-pressure discharge lamp, has a discharging bulb with the air tight manner sealing, at least fill a kind of metallic vapour and a kind of rare gas in the described discharging bulb, and an end of discharging bulb is provided with a groove, is provided with two coils in the described groove: first coil links to each other with the high frequency power source component; Second coil, one end is electrically connected to an end of first coil, and the other end is a free end.The number of turn of two coils preferably equates, makes that during operation the electric potential gradient of first coil end equals the electric potential gradient of second coil end substantially, and the hf interference current that appears in the conductor of supply main is reduced to acceptable degree.The high frequency electrode-free low-pressure discharge lamp of this structure, second coil only is used as and compensates for the disturbance current that is produced by first coil in the supply main, its number of turn be limited at the essentially identical scope of first coil turn in, therefore when the current potential of first coil was low, its effect of lighting a fire was bad.
For increasing the igniting effect, Chinese patent 891012931 discloses a kind of technical scheme of electrodeless low voltage discharge lamp, and it fixes two ignition antennas at the free end of second coil and an end of first coil on the basis of above-mentioned prior art.But because the voltage of ignition coil depends primarily on the output voltage of high frequency power source, thereby be difficult to fundamentally address this problem.
The purpose of this utility model is to provide a kind of ignition performance good, the high frequency electrode-free low-pressure discharge lamp that especially also can light a fire smoothly when line voltage is on the low side.
The purpose of this utility model is achieved in that the high frequency electrode-free low-pressure discharge lamp, the discharging bulb that comprises an air tight manner sealing, at least fill a kind of metallic vapour and a kind of rare gas in the described discharging bulb, and an end of discharging bulb is provided with a groove, be provided with two coils in the described groove, it is characterized in that described two coils are made of an ignition coil and the exciting magnet exciting coil of using for starter of confession, described magnet exciting coil two ends are connected to high frequency power source, and described ignition coil two ends respectively are connected with an antenna; The number of turn of described ignition coil is 3 to 10 times of the magnet exciting coil number of turn.
Line voltage is converted into high-frequency alternating voltage by high frequency power source, put on the two ends of magnet exciting coil from the output of high frequency power source, produce the alternating electromagnetic field of high frequency in magnet exciting coil, ignition coil produces induced electromotive force under the effect of this electromagnetic field, because the number of turn of ignition coil is greater than the number of turn of magnet exciting coil, according to transformer principle, the terminal voltage of ignition coil will play boosting, therefore greater than the terminal voltage of magnet exciting coil, when line voltage is on the low side, also can light a fire smoothly.The turn ratio of ignition coil and magnet exciting coil is big more, and the effect of boosting is remarkable more, and in general, the turn ratio of ignition coil and magnet exciting coil is 3 o'clock, can produce appreciable results.
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is an electrical schematic diagram of the present utility model.
Fig. 3 is the structural representation of magnet exciting coil during with the concentric coiling of ignition coil.
Fig. 4 is that magnet exciting coil is the tapped coil and the structural representation of antenna.
With reference to Fig. 1,2, the high frequency electrode-free low-pressure discharge lamp, comprise one by means of the glass spherical discharging bulb 1 of glass sealing part 9 by the air tight manner sealing, be full of the inert gas of mercuryvapour and a kind of for example argon in the described discharging bulb, have luminescent layer 4 on the described discharging bulb inwall, be provided with two coils in the groove 5 of closure, first coil is for exciting magnet exciting coil 10, second coil is the ignition coil of using for starter 7, described magnet exciting coil two ends 3,11 are connected to the output of high frequency power source 12, and described ignition coil two ends respectively are connected with an antenna 2,8; The number of turn of described ignition coil is 3 to 10 times of the magnet exciting coil number of turn.
At the lamp duration of work, the high voltage electric field at ignition coil two ends is by radiation in day alignment discharging bulb, the mercuryvapour in the disruptive discharge bubble, when mercury atom when returning ground state, the form that the energy that is absorbed is penetrated with the width of cloth discharges, and produces glow discharge in discharging bulb.The luminescent layer of discharging bulb inwall is converted into visible light with the invisible light that glow discharge produced.
The voltage U 2 at ignition coil two ends is determined by the no-load voltage ratio of ignition coil and magnet exciting coil, and the voltage U 1 of magnet exciting coil is that line voltage is by high frequency power source amplification acquisition.Usually, no-load voltage ratio is big more, and the voltage at ignition coil two ends is high more, and the effect of low pressure starting is obvious more, limit by recess space, and this no-load voltage ratio is also unsuitable excessive, is advisable with 3～10.
The coiling in the same way of ignition coil and magnet exciting coil, yet oppositely coiling does not influence result of use.Magnet exciting coil can independent coiling, also can constitute (as shown in Figure 4) by termination of ignition coil and the coil sections between the centre tap, and latter's winding mode is similar to autotransformer, can utilize recess space better.Ignition coil and magnet exciting coil radial concentric coiling (as shown in Figure 3) can reduce magnetic loss to greatest extent.On this basis, the magnetic core 6 of soft magnetic material is set in ignition coil and magnet exciting coil, can reduces the magnetic loss of magnetic circuit, reduce coil turn and coil and take up space, improve the operating efficiency of discharge lamp.
Table 1 is classified the concrete experimental data of the utility model embodiment as.The power of testing used high frequency electrode-free low-pressure discharge lamp is 50W, applying argon gas in the discharging bulb, and air pressure is 300 handkerchiefs, control ignition voltage U 2 is at 510V.
Table 1
| No-load voltage ratio | 3∶1 | 4∶1 | 10∶1 |
| Actual measurement U1 value (V) | 182 | 135 | 68 |
Can find out that from table 1 under the identical ignition voltage situation of output, in the scope of turn ratio 3～10 of ignition coil and magnet exciting coil, the voltage U 1 of magnet exciting coil obviously descends.Because U1 depends primarily on the operating circuit of line voltage and high frequency power source, therefore when selecting the operating circuit of high frequency power source, U1 is proportional to line voltage.Also promptly, adopt structure of the present utility model, when voltage ripple of power network is big, still can effectively light a fire.
Claims (6)
1, high frequency electrode-free low-pressure discharge lamp, the discharging bulb (1) that comprises an air tight manner sealing, at least fill a kind of metallic vapour and a kind of rare gas in the described discharging bulb, and an end of discharging bulb is provided with a groove (5), be provided with two coils in the described groove, it is characterized in that described two coils are made of an ignition coil (7) and an exciting magnet exciting coil of using for starter of confession (10), described magnet exciting coil two ends (3,11) be connected to high frequency power source (12), described ignition coil two ends respectively are connected with an antenna (2,8); The number of turn of described ignition coil is 3 to 10 times of the magnet exciting coil number of turn.
2, high frequency electrode-free low-pressure discharge lamp as claimed in claim 1 is characterized in that the independent separately coiling of described ignition coil and magnet exciting coil.
3, high frequency electrode-free low-pressure discharge lamp as claimed in claim 2 is characterized in that described magnet exciting coil is made of termination of ignition coil and the coil sections between the centre tap.
4,, it is characterized in that described magnet exciting coil and ignition coil are air core coil as claim 2 or 3 described high frequency electrode-free low-pressure discharge lamps.
5,, it is characterized in that being provided with in described magnet exciting coil and the ignition coil magnetic core (6) of soft magnetic material as claim 2 or 3 described high frequency electrode-free low-pressure discharge lamps.
6, as claim 2 or 3 described high frequency electrode-free low-pressure discharge lamps, it is characterized in that described magnet exciting coil and the coiling of ignition coil radial concentric.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99218123 CN2381019Y (en) | 1999-07-21 | 1999-07-21 | High-frequency electrode-free low-voltage discharge lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99218123 CN2381019Y (en) | 1999-07-21 | 1999-07-21 | High-frequency electrode-free low-voltage discharge lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2381019Y true CN2381019Y (en) | 2000-05-31 |
Family
ID=34009413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99218123 Expired - Fee Related CN2381019Y (en) | 1999-07-21 | 1999-07-21 | High-frequency electrode-free low-voltage discharge lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2381019Y (en) |
-
1999
- 1999-07-21 CN CN 99218123 patent/CN2381019Y/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5834905A (en) | High intensity electrodeless low pressure light source driven by a transformer core arrangement | |
| CN100576427C (en) | Built-in magnetic energy generator magnetic light | |
| US4185233A (en) | High efficiency ballast system for gaseous discharge lamps | |
| US4350934A (en) | Discharge device ballast component which provides both voltage transformation and variable inductive reactance | |
| US20020067129A1 (en) | Ferrite core for electrodeless flourescent lamp operating at 50-500 khz | |
| JP4195483B2 (en) | Electric lamp assembly | |
| CN2381019Y (en) | High-frequency electrode-free low-voltage discharge lamp | |
| US2869037A (en) | Fluorescent lamp ballast | |
| GB2050685A (en) | Electrodeless discharge lamps | |
| CN2519988Y (en) | Energy-saving inductive ballast for 35 W ceramic inner tube metal halide lamp | |
| US8487544B2 (en) | Power splitter circuit for electrodeless lamp | |
| CN2379991Y (en) | Power supply device for high strength gas discharge lamp | |
| JP2001256927A (en) | Electrodeless fluorescent lamp | |
| CN2539265Y (en) | Induction ballast | |
| CN206564723U (en) | The self-service ballast of current-limiting type | |
| CN2173985Y (en) | Short magnetic circuit high-efficiency energy-saving high voltage device for cold cathode gas discharge lamp | |
| CN2343738Y (en) | Distributor for CLL fluorescent lamp | |
| USRE31970E (en) | High efficiency ballast system for gaseous discharge lamps | |
| CN2785305Y (en) | Neon light high frequency magnetic leakage electronic transformer | |
| CN2342543Y (en) | Ballast | |
| CN2143040Y (en) | High energy-saving transformer for neon lamp | |
| KR100789865B1 (en) | Ballast stabilizer for high intensity discharge lamp | |
| CN2140600Y (en) | Energy saving transformer for high voltage neon lamp | |
| CN201036111Y (en) | Retardation coil for lighting device | |
| Chen et al. | A Dimmable Electrodeless Fluorescent Lamp |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |