CN204084257U - The T8LED fluorescent tube of a kind of compatible electronic ballast and Inductive ballast - Google Patents
The T8LED fluorescent tube of a kind of compatible electronic ballast and Inductive ballast Download PDFInfo
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- CN204084257U CN204084257U CN201420509105.5U CN201420509105U CN204084257U CN 204084257 U CN204084257 U CN 204084257U CN 201420509105 U CN201420509105 U CN 201420509105U CN 204084257 U CN204084257 U CN 204084257U
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Abstract
Described in the utility model can the T8LED fluorescent tube of compatible electronic ballast and Inductive ballast, comprise LED group and be positioned at the plug at LED group two ends, be characterized in the power-switching circuit that can make LED group compatible electronic ballast and Inductive ballast is installed in described plug, described power-switching circuit comprises high frequency current limiter, there is the low-and high-frequency bidirectional filter of two-way inductance coil filtering, there is the low-and high-frequency rectifier of ultrafast conducting diode, described high frequency current limiter carries out current limiting pressure-limiting to the fluorescent lamp input circuit of Inductive ballast form and the fluorescent lamp input circuit of electric ballast form, low-and high-frequency bidirectional filter carries out filtering to the fluorescent lamp input circuit of Inductive ballast form and the fluorescent lamp input circuit of electric ballast form, and low-and high-frequency rectifier is direct current voltage to the AC current-voltage rectification through high frequency current limiter.Work that can both be reliable and stable when no matter the utility model is originally electric ballast or Inductive ballast, applied widely.
Description
Technical field
The utility model relates to field of light fittings, particularly the T8LED fluorescent tube of a kind of compatible electronic ballast and Inductive ballast.
Background technology
T8LED fluorescent tube is as a kind of electric light source of efficient energy-saving durable, and compared with traditional T8 fluorescent tube, have the advantages such as energy consumption is low, the life-span long, pollution-free, T8LED fluorescent tube has started to replace traditional T8 fluorescent tube gradually at present.The principle of luminosity of tradition T8 fluorescent lamp is different from T8LED fluorescent tube, and conventional fluorescent fluorescent tube needs an electric ballast or Inductive ballast and starter to start luminescence.And T8LED fluorescent tube only needs the control unit of an alternating current inversion of direct current electricity, because traditional T8 fluorescent tube applies decades, every country and manufacturer have developed the ballast of various principle, specification, therefore T8LED fluorescent tube substitutes in the process of traditional T8 fluorescent lamp, just needs to solve the T8LED fluorescent tube compatibling problem to electric ballast and Inductive ballast.
The T8LED fluorescent tube of current use with the compatibility of electric ballast and Inductive ballast on there is a lot of problem, Inductive ballast can normally work, but on electric ballast, just likely cause T8LED fluorescent tube to glimmer, dimmed, even burn, need to develop different T8LED fluorescent tube power supplys for different ballasts, so just substantially increase the cost that T8LED fluorescent tube substitutes traditional T8 fluorescent lamp, the serious promotion and application that have impact on T8LED fluorescent tube.
Summary of the invention
The purpose of this utility model is for above-mentioned existing problems and deficiency, a kind of work that can both be reliable and stable when no matter being originally electric ballast or Inductive ballast is provided, and with low cost, structure is simple, stable and reliable for performance, highly versatile can compatible electronic ballast and Inductive ballast T8LED fluorescent tube.
The technical solution of the utility model is achieved in that
Described in the utility model can the T8LED fluorescent tube of compatible electronic ballast and Inductive ballast, comprise LED group and be installed on the plug at LED group two ends, be characterized in: the power-switching circuit that can make LED group compatible electronic ballast and Inductive ballast is installed in described plug, described power-switching circuit comprises the high frequency current limiter with high frequency current limliting and low frequency metering function, there is the low-and high-frequency bidirectional filter of two-way inductance coil filtering, there is the low-and high-frequency rectifier of ultrafast conducting diode, described high frequency current limiter carries out current limiting pressure-limiting to the fluorescent lamp input circuit of Inductive ballast form and the fluorescent lamp input circuit of electric ballast form, low-and high-frequency bidirectional filter carries out filtering to the fluorescent lamp input circuit of Inductive ballast form and the fluorescent lamp input circuit of electric ballast form, and low-and high-frequency rectifier is direct current voltage to the AC current-voltage rectification through high frequency current limiter.
Power-switching circuit of the present utility model is owing to adopting two-way inductance coil filtering, and prevent this circuit and peripheral circuit from producing resonance, guard lamp pearl can not be burnt because of resonance.Add low-and high-frequency rectifier and adopt ultrafast conducting diode, instead of conventional general commutation diode, under high frequency condition, temperature rise is low like this, and conducting is fast.Simultaneously LED group adopts first and the connected mode of rear string, utilizes again the pressure drop shunting action of lamp pearl own, automatic regulating power and voltage, the direct current voltage that rectifier is exported by the pressure drop of lamp pearl power parameter requirement, lightening LED lamp pipe.The utility model is with low cost, structure is simple, power-switching circuit is arranged on T8 lighting tube plug, stable and reliable for performance, the line construction of original light fixture is without the need to doing any change, just the various T8 fluorescent tubes of original electric ballast or Inductive ballast directly can be replaced to T8LED fluorescent tube, save installation cost, work that can both be reliable and stable when no matter being originally electric ballast or Inductive ballast.
Below in conjunction with accompanying drawing, the utility model is further described.
Accompanying drawing explanation
Fig. 1 is T8LED fluorescent tube structure schematic diagram described in the utility model.
Fig. 2 is the disassembly and assembly structure schematic diagram of Fig. 1 mono-embodiment.
Fig. 3 is circuit block diagram of the present utility model.
Fig. 4 is embodiment circuit theory diagrams of the present utility model.
Fig. 5 is the operation principle when ballast input circuit is the fluorescent lamp input circuit of electric ballast form.
Fig. 6 is the operation principle when ballast input circuit is the fluorescent lamp input circuit of Inductive ballast form.
Detailed description of the invention
As shown in figs 1 to 6, the T8LED fluorescent tube of compatible electronic ballast described in the utility model and Inductive ballast, comprise LED group 1 and be installed on the plug 2 at LED group 1 two ends, the power-switching circuit that can make LED group 1 compatible electronic ballast and Inductive ballast is installed in described plug 2, described power-switching circuit comprises the high frequency current limiter with high frequency current limliting and low frequency metering function, there is the low-and high-frequency bidirectional filter of two-way inductance coil filtering, there is the low-and high-frequency rectifier of ultrafast conducting diode, described high frequency current limiter carries out current limiting pressure-limiting to the fluorescent lamp input circuit of Inductive ballast form and the fluorescent lamp input circuit of electric ballast form, low-and high-frequency bidirectional filter carries out filtering to the fluorescent lamp input circuit of Inductive ballast form and the fluorescent lamp input circuit of electric ballast form, and low-and high-frequency rectifier is direct current voltage to the AC current-voltage rectification through high frequency current limiter.LED chip in above-mentioned LED group 1 or lamp pearl adopt first and the syndeton of rear string.The utility model, owing to adopting two-way inductance coil filtering, prevents this circuit and peripheral circuit from producing resonance, and in protection LED group, lamp pearl can not be burnt because of resonance.Low-and high-frequency rectifier adopts ultrafast conducting diode, instead of conventional general commutation diode, and under high frequency condition, temperature rise is low, and conducting is fast.Simultaneously LED group 1 adopt first and after go here and there, utilize the pressure drop shunting action of lamp pearl own, automatic regulating power and voltage, the direct current voltage that rectifier is exported by the pressure drop of lamp pearl power parameter requirement, lightening LED lamp pipe.The utility model is with low cost, structure is simple, be arranged on T8 lighting tube plug, stable and reliable for performance, the line construction of original light fixture is without the need to doing any change, just the various T8 fluorescent tubes of original electric ballast or Inductive ballast directly can be replaced to T8LED fluorescent tube, save installation cost, work that can both be reliable and stable when no matter being originally electric ballast or Inductive ballast.As shown in Figure 4, low-and high-frequency AC current-voltage input high frequency current limiter, filtering is carried out to Inductive ballast and electric ballast Current Voltage, electric ballast and Inductive ballast Current Voltage are controlled, AC current-voltage through current limiting pressure-limiting enters low-and high-frequency rectifier, AC current-voltage is sent into LED again and cluster of lamps, ornamental group after rectifier, makes LED and cluster of lamps, ornamental group normally works.
As shown in Figure 5, when ballast input circuit is the fluorescent lamp input circuit of electric ballast form, high frequency (20KHz-60KHz) voltage of electric ballast is through A1, A2 short circuit, A3, A4 short circuit divides the input of the power-switching circuit being clipped to (Fig. 4) LED group compatible electronic ballast and Inductive ballast, through C high frequency current limliting → through L1, L2 low-and high-frequency filtering → convert through D low-and high-frequency rectifier the direct current lighting LED to again.
As shown in Figure 6, when ballast input circuit is the fluorescent lamp input circuit of Inductive ballast form, low frequency (50Hz-60Hz) voltage of Inductive ballast through Inductive ballast coil to A1, A3(cancels starter) divide the input being clipped to the power-switching circuit of (Fig. 4) LED group compatible electronic ballast and Inductive ballast, through C high frequency current limliting → through L1, L2 low-and high-frequency filtering → convert through D low-and high-frequency rectifier the direct current lighting LED to again.
Although the utility model describes with reference to specific embodiment, this description not meaning that is construed as limiting the utility model.With reference to description of the present utility model, other changes of the disclosed embodiments, all can expect for those skilled in the art, this change should belong in appended claims limited range.
Claims (2)
1. one kind can the T8LED fluorescent tube of compatible electronic ballast and Inductive ballast, comprise LED group (1) and be installed on the plug (2) at LED group (1) two ends, it is characterized in that: the power-switching circuit that can make LED group (1) compatible electronic ballast and Inductive ballast is installed in described plug (2), described power-switching circuit comprises the high frequency current limiter with high frequency current limliting and low frequency metering function, there is the low-and high-frequency bidirectional filter of two-way inductance coil filtering, there is the low-and high-frequency rectifier of ultrafast conducting diode, described high frequency current limiter carries out current limiting pressure-limiting to the fluorescent lamp input circuit of Inductive ballast form and the fluorescent lamp input circuit of electric ballast form, described low-and high-frequency bidirectional filter carries out filtering to the fluorescent lamp input circuit of Inductive ballast form and the fluorescent lamp input circuit of electric ballast form, and described low-and high-frequency rectifier is direct current voltage to the AC current-voltage rectification through high frequency current limiter.
2. according to claim 1 can the T8LED fluorescent tube of compatible electronic ballast and Inductive ballast, it is characterized in that LED chip on above-mentioned LED group (1) or lamp pearl adopt first and the syndeton of rear string.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420509105.5U CN204084257U (en) | 2014-09-05 | 2014-09-05 | The T8LED fluorescent tube of a kind of compatible electronic ballast and Inductive ballast |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420509105.5U CN204084257U (en) | 2014-09-05 | 2014-09-05 | The T8LED fluorescent tube of a kind of compatible electronic ballast and Inductive ballast |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204084257U true CN204084257U (en) | 2015-01-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420509105.5U Expired - Fee Related CN204084257U (en) | 2014-09-05 | 2014-09-05 | The T8LED fluorescent tube of a kind of compatible electronic ballast and Inductive ballast |
Country Status (1)
| Country | Link |
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| CN (1) | CN204084257U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104822215A (en) * | 2015-04-22 | 2015-08-05 | 罗崇斌 | LED tube for directly replacement of instant start fluorescent tube |
| CN105465642A (en) * | 2014-09-28 | 2016-04-06 | 嘉兴山蒲照明电器有限公司 | Light emitting diode lamp tube and emergency lamp device |
| CN107211498A (en) * | 2015-02-03 | 2017-09-26 | 飞利浦照明控股有限公司 | Filament unit for reequiping LED pipe |
| CN107306470A (en) * | 2016-04-21 | 2017-10-31 | 广西苏中达科智能工程有限公司 | A kind of universal gas discharge lamp dimming device |
-
2014
- 2014-09-05 CN CN201420509105.5U patent/CN204084257U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105465642A (en) * | 2014-09-28 | 2016-04-06 | 嘉兴山蒲照明电器有限公司 | Light emitting diode lamp tube and emergency lamp device |
| CN105465642B (en) * | 2014-09-28 | 2023-12-26 | 嘉兴山蒲照明电器有限公司 | LED lamp tube and emergency lighting lamp device |
| CN107211498A (en) * | 2015-02-03 | 2017-09-26 | 飞利浦照明控股有限公司 | Filament unit for reequiping LED pipe |
| CN104822215A (en) * | 2015-04-22 | 2015-08-05 | 罗崇斌 | LED tube for directly replacement of instant start fluorescent tube |
| CN107306470A (en) * | 2016-04-21 | 2017-10-31 | 广西苏中达科智能工程有限公司 | A kind of universal gas discharge lamp dimming device |
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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: 20150107 Termination date: 20150905 |
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| EXPY | Termination of patent right or utility model |