CN204459817U - A kind of LED lamp tube of replaceable electronic fluorescent fluorescent tube - Google Patents
A kind of LED lamp tube of replaceable electronic fluorescent fluorescent tube Download PDFInfo
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- CN204459817U CN204459817U CN201520011757.0U CN201520011757U CN204459817U CN 204459817 U CN204459817 U CN 204459817U CN 201520011757 U CN201520011757 U CN 201520011757U CN 204459817 U CN204459817 U CN 204459817U
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- lamp base
- ntc thermistor
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- fluorescent
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Abstract
The utility model discloses a kind of LED lamp tube of replaceable electronic fluorescent fluorescent tube, comprise body, body has first end and the second end, first end is provided with the first lamp base and the second lamp base, second end is provided with the 3rd lamp base and the 4th lamp base, LED light module and electric power driving module is provided with in described body, described electric power driving module comprises first input end, second input, first output and the second output, first output is just being connected LED light module respectively with the second output, negative pole, first lamp base and the second lamp base connect first input end respectively by the first NTC thermistor and the second NTC thermistor, 3rd lamp base is connected second input respectively by the 3rd NTC thermistor with the 4th NTC thermistor with the 4th lamp base.The utility model utilizes NTC thermistor to replace the filament of conventional fluorescent; the electric ballast with filament defencive function can normally be worked; because NTC thermistor declines along with temperature raises resistance value; the power consumption produced is corresponding reduction also, eventually reduces the overall power of LED lamp tube.
Description
Technical field
The utility model relates to a kind of LED lamp tube, particularly relates to a kind of LED lamp tube of replaceable electronic fluorescent fluorescent tube.
Background technology
Fluorescent lamp is the most frequently used illuminations of office space, shelter, and traditional fluorescent lamp generally adopts fluorescent tube, has the advantages such as energy-saving and environmental protection because of LED, along with the continuous maturation of LED technology, fluorescent tube gradually substitute by LED lamp tube.Because existing fluorescent lighting fixture is often provided with ballast, its output current is alternating current, and LED needs DC driven, for realizing replacing, needs to install electric power driving module in LED lamp tube.
Electric ballast (Electricalballast) is the one of ballast, refers to and adopts electronic technology to drive electric light source, makes it the electronic equipment producing required illumination.Corresponding is inductance type ballast (or ballast) with it.Modern fluorescent lamp more and more uses electric ballast, and light small and exquisite, even electric ballast and fluorescent tube etc. can be integrated, meanwhile, electric ballast can have starter function concurrently usually, so can save independent starter again.Electric ballast can also have greater functionality, such as can by improving the scintillation of power frequency or current waveform (as becoming square wave) improvement or elimination fluorescent lamp.
CN 101600288A discloses a kind of circuit of electronic ballast being adapted to common dimmer for light control; comprise power supply input circuit, switching circuitry and resonance output loop; have between described power supply input circuit and switching circuitry and correct adjustment loop; resonance output loop simultaneously also comprises cathodic protection circuit, i.e. filament protective loop.
The same with above electric ballast; conventional fluorescent lamp ballast has with filament measuring ability mostly; when filament disconnection or short circuit, ballast all can be protected; so just need a kind of artifical resistance that can replace filament in replaced type L E D lamp; if the common resistance of this resistance substitutes, energy loss can be quite large.
The equivalent circuit theory figure of conventional fluorescent fluorescent tube as shown in Figure 1, fluorescent lamp comprises lamp base P1, P2, P3, P4, a filament is equivalent to resistance R1, R2, another root filament is equivalent to resistance R3, R4, lamp body is equivalent to resistance R, lamp base P1 is connected lamp body with lamp base P2 respectively by resistance R1, R2, and lamp base P3 is connected lamp body with lamp base P4 respectively by resistance R3, R4.
Utility model content
The utility model provides a kind of LED lamp tube of replaceable electronic fluorescent fluorescent tube, and this LED lamp tube directly can connect electric ballast, replaces conventional fluorescent fluorescent tube, and low in energy consumption.
A kind of LED lamp tube of replaceable electronic fluorescent fluorescent tube, comprise body, body has first end and the second end, first end is provided with the first lamp base and the second lamp base, second end is provided with the 3rd lamp base and the 4th lamp base, LED light module and electric power driving module is provided with in described body, described electric power driving module comprises first input end, second input, first output and the second output, first output is just being connected LED light module respectively with the second output, negative pole, first lamp base and the second lamp base connect first input end respectively by the first NTC thermistor and the second NTC thermistor, 3rd lamp base is connected second input respectively by the 3rd NTC thermistor with the 4th NTC thermistor with the 4th lamp base.
Preferably, one of them input of described electric power driving module is in series with current limliting module, avoids electric ballast output current excessive, and damage light emitting module or driving, preferably, described current limliting module is current limiting capacitance.
More preferably, described current limiting capacitance is 0.001 ~ 0.1 μ F, is more preferably 0.00472 ~ 0.1 μ F.
Preferably, the normal resistance of NTC thermistor is 1 ~ 20 Ω, and described normal resistance refers to and the resistance value that NTC thermistor records at 25 DEG C is more preferably 2 ~ 12 Ω.
The utility model utilizes NTC thermistor to replace the filament of conventional fluorescent; the electric ballast with filament defencive function can normally be worked; because NTC thermistor declines along with temperature raises resistance value; the power consumption produced is corresponding reduction also, eventually reduces the overall power of LED lamp tube.
Accompanying drawing explanation
Fig. 1 is conventional fluorescent fluorescent tube equivalent circuit theory figure.
Fig. 2 is the circuit theory diagrams of the utility model LED lamp tube.
Detailed description of the invention
As shown in Figure 2, a kind of LED lamp tube, comprise lamp base P1, P2, P3, P4, LED light module 1 and electric power driving module 2, the LED that LED light module comprises substrate and is fixed in the above, electric power driving module 2 comprises the positive and negative electrode that two outputs, first input end 21 and the second input 22, two outputs connect LED light module 1 respectively.The electric power driving module 2 that the utility model adopts is high frequency electric source drive circuits, mainly the high frequency current transitions that electric ballast exports is become direct current, and supply LED light module 1, it can adopt LED drive circuit disclosed in CN203596948U.
The utility model LED lamp tube is mainly used in the fluorescent tube replacing conventional belt electric ballast; because existing electric ballast has filament defencive function mostly; as directly replaced; need that artifical resistance is installed in LED lamp tube to detect as filament resistance supplied for electronic ballast, otherwise electric ballast can be caused normally to work.
The utility model is provided with four NTC thermistor RT1, RT2, RT3, RT4 as filament resistance at LED lamp tube two ends, lamp base P1, P2 connect the first input end 21 of electric power driving module respectively by NTC thermistor RT1, RT2, and lamp base P3, P4 connect the first input end 22 of electric power driving module respectively by NTC thermistor RT3, RT4.The connected mode of NTC thermistor is identical with the Equivalent conjunction mode of conventional fluorescent filament resistance, due to the reduction that its resistance raises with temperature, therefore significantly can reduce the power consumption of generation.
For avoiding electric ballast output current excessive, the second output 22 is also in series with current limiting capacitance C, and the size of current limiting capacitance is determined according to electric ballast model, is typically chosen in 0.001 ~ 0.1 μ F, can certainly adopt other current limliting module or device.The nominal resistance of NTC thermistor is generally 1 ~ 20 Ω, can meet corresponding detection demand.
Claims (7)
1. the LED lamp tube of a replaceable electronic fluorescent fluorescent tube, comprise body, body has first end and the second end, first end is provided with the first lamp base and the second lamp base, second end is provided with the 3rd lamp base and the 4th lamp base, LED light module and electric power driving module is provided with in described body, described electric power driving module comprises first input end, second input, first output and the second output, first output is just being connected LED light module respectively with the second output, negative pole, it is characterized in that, first lamp base and the second lamp base connect first input end respectively by the first NTC thermistor and the second NTC thermistor, 3rd lamp base is connected second input respectively by the 3rd NTC thermistor with the 4th NTC thermistor with the 4th lamp base.
2. LED lamp tube as claimed in claim 1, it is characterized in that, one of them input of described electric power driving module is in series with current limliting module.
3. LED lamp tube as claimed in claim 2, it is characterized in that, described current limliting module is current limiting capacitance.
4. LED lamp tube as claimed in claim 3, it is characterized in that, described current limiting capacitance is 0.001 ~ 0.1 μ F.
5. LED lamp tube as claimed in claim 4, it is characterized in that, described current limiting capacitance is 0.00472 ~ 0.1 μ F.
6. LED lamp tube as claimed in claim 1, it is characterized in that, the normal resistance of NTC thermistor is 1 ~ 20 Ω.
7. LED lamp tube as claimed in claim 6, it is characterized in that, the normal resistance of NTC thermistor is 2 ~ 12 Ω.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520011757.0U CN204459817U (en) | 2015-01-08 | 2015-01-08 | A kind of LED lamp tube of replaceable electronic fluorescent fluorescent tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520011757.0U CN204459817U (en) | 2015-01-08 | 2015-01-08 | A kind of LED lamp tube of replaceable electronic fluorescent fluorescent tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204459817U true CN204459817U (en) | 2015-07-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520011757.0U Expired - Fee Related CN204459817U (en) | 2015-01-08 | 2015-01-08 | A kind of LED lamp tube of replaceable electronic fluorescent fluorescent tube |
Country Status (1)
| Country | Link |
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| CN (1) | CN204459817U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104595762A (en) * | 2015-01-08 | 2015-05-06 | 浙江晨辉光宝科技有限公司 | LED (light emitting diode) lamp tube with replaceable electronic fluorescent lamp tube |
-
2015
- 2015-01-08 CN CN201520011757.0U patent/CN204459817U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104595762A (en) * | 2015-01-08 | 2015-05-06 | 浙江晨辉光宝科技有限公司 | LED (light emitting diode) lamp tube with replaceable electronic fluorescent lamp tube |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150708 Termination date: 20170108 |