CN201672328U - LED fluorescent lamp - Google Patents
LED fluorescent lamp Download PDFInfo
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- CN201672328U CN201672328U CN2010202052205U CN201020205220U CN201672328U CN 201672328 U CN201672328 U CN 201672328U CN 2010202052205 U CN2010202052205 U CN 2010202052205U CN 201020205220 U CN201020205220 U CN 201020205220U CN 201672328 U CN201672328 U CN 201672328U
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Abstract
The utility model relates to an LED fluorescent lamp comprising an LED lamp tube body, and connection-pegs arranged at two ends of the LED lamp tube body and being suitable for being adaptive to power jacks on the lamp holder of the fluorescent lamp, wherein the LED lamp tube body comprises a base made of aluminium profile, a power supply drive plate arranged in the base, an LED lamp panel arranged at the top end surface of the base, and a transparent lampshade arranged on the base in a matching way; a circuit on a circuit board comprises an anti-surge protection circuit, an EMC filter circuit, an overvoltage protection circuit, a full-bridge rectification circuit, a power factor correcting circuit, a voltage reduction and stabilization circuit, as well as a PWM modulating and constant-current current-broadening circuit which are sequentially connected in series, wherein the current output end of the PWM modulating and constant-current current-broadening circuit is connected with LED arrays on the LED lamp panel.
Description
Technical field
The utility model relates to a kind of LED lamp, specifically is a kind of LED fluorescent lamp.
Background technology
Existing fluorescent lamp service life is short, power consumption is big, brightness is lower, also need be with devices such as ballast and starters, so complex structure, make troubles to installation and maintenance.
That LED has is low in energy consumption, brightness is high and characteristics such as long service life, is approved by users gradually.Therefore, how using LED as luminous original paper on existing fluorescent lamp base, is the technical problem that this area will solve.
The utility model content
The technical problems to be solved in the utility model provide a kind of simple in structure, be suitable on existing fluorescent lamp base using the LED fluorescent lamp of LED as luminous original paper.
For solving the problems of the technologies described above, the LED fluorescent lamp that the utility model provides comprises: LED fluorescent tube body and be located at the connection-peg that matches with supply hub on the fluorescent lamp base of being suitable at LED fluorescent tube body two ends; Described LED fluorescent tube body comprises: the base of aluminium section bar, be located at power drives plate in the base, be located at the LED lamp plate of base top end face and be equipped with Transparent lamp shade on base.
Further, for realizing the constant current power supply of LED lamp plate and guaranteeing that lighting quality, the circuit on the described power drives plate comprise antisurge holding circuit, EMC filter circuit, overvoltage crowbar, full bridge rectifier, circuit of power factor correction, decompression voltage regulator and the PWM modulation and the wealthy current circuit of constant current of series connection successively; The current output terminal of PWM modulation and the wealthy current circuit of constant current links to each other with the led array on the LED lamp plate.
Further, for realizing even lighting, each LED on the described LED lamp plate equidistantly is arranged on the center line of LED lamp plate.
Further, for realizing PFC effect preferably, described circuit of power factor correction comprises: first diode, second diode, the 3rd diode, the 3rd electric capacity and the 4th electric capacity; After linking to each other, the anode of second diode and the 3rd diode connects the negative pole end of described full bridge rectifier, the negative electrode of second diode connects the anode of first diode, the negative electrode of first diode connects the positive terminal of described full bridge rectifier, and the negative electrode of the 3rd diode is connected in series the negative electrode that connects first diode behind the 4th electric capacity.
Further, be to realize constant current control, described PWM modulation and the wealthy current circuit of constant current comprise: the PWM controller, be used to drive the wealthy current circuit of constant current of described led array and be used to feed back the feedback circuit of the current information of described led array to the PWM controller.
The technique effect that the utlity model has: when LED fluorescent lamp of the present utility model uses, can be directly installed on the existing fluorescent lamp base, and parts such as dismountable ballast, starter, and AC power is directly received on the connection-peg at LED fluorescent tube body two ends respectively, can use, so convenient for installation and maintenance.Owing to service life of LED reach several ten thousand hours, so long service life, and characteristics such as brightness height, energy consumption are low are arranged.
Description of drawings
For the easier quilt of content of the present utility model is clearly understood, below the specific embodiment and in conjunction with the accompanying drawings of basis, the utility model is described in further detail, wherein
Fig. 1 is the structural representation of the LED fluorescent lamp among the embodiment;
Fig. 2 is the cross-sectional view of the LED fluorescent lamp among Fig. 1;
Fig. 3 is the circuit block diagram of the LED fluorescent lamp among the embodiment;
Fig. 4 is the circuit theory diagrams of the LED fluorescent lamp among the embodiment.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is elaborated:
As Fig. 1-4, the LED fluorescent lamp of present embodiment comprises: LED fluorescent tube body 1 and be located at the connection-peg 2 that matches with supply hub on the fluorescent lamp base of being suitable at LED fluorescent tube body 1 two ends.
Described LED fluorescent tube body 1 comprises: the base 1-4 of aluminium section bar, be located at power drives plate 1-2 among the base 1-4, be located at the LED lamp plate 1-3 of base 1-4 top end face and be equipped with Transparent lamp shade 1-1 on base 1-4.Base 1-4 adopts aluminium section bar, is convenient to the heat radiation to LED, guarantees that LED remains higher brightness.
Circuit on the described power drives plate 1-2 comprises antisurge holding circuit, overvoltage crowbar, EMC filter circuit (being the Electro Magnetic Compatibility filter circuit), full bridge rectifier, circuit of power factor correction, decompression voltage regulator and the PWM modulation and the wealthy current circuit of constant current of series connection successively; The current output terminal of PWM modulation and the wealthy current circuit of constant current links to each other with the led array on the LED lamp plate 1-3.
Each LED on the described LED lamp plate 1-3 equidistantly is arranged on the center line of LED lamp plate 1-3.
Antisurge holding circuit and EMC filter circuit comprise the first thermistor RT1, first inductance L 1 and the 5th capacitor C 5.
Overvoltage crowbar comprises the second piezo-resistance RT2, fuse FUSE.
Described circuit of power factor correction comprises: the first diode D1, the second diode D2, the 3rd diode D3, the 3rd capacitor C 3 and the 4th capacitor C 4; After linking to each other, the anode of the second diode D2 and the 3rd diode D3 connects the negative pole end of described full bridge rectifier, the negative electrode of the second diode D2 connects the anode of the first diode D1, the negative electrode of the first diode D1 connects the positive terminal of described full bridge rectifier, and the negative electrode of the 3rd diode D3 is connected in series the negative electrode that meets the first diode D1 after the 4th capacitor C 4.
Described PWM modulation and the wealthy current circuit of constant current comprise: PWM controller IC 1, be used to drive the wealthy current circuit of constant current of described led array and be used to feed back the feedback circuit of the current information of described led array to PWM controller IC 1.
Obviously, the foregoing description only is for the utility model example clearly is described, and is not to be qualification to embodiment of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give exhaustive to all embodiments.And these belong to conspicuous variation or the change that spirit of the present utility model extended out and still are among the protection domain of the present utility model.
Claims (5)
1. LED fluorescent lamp is characterized in that comprising:
LED fluorescent tube body (1) and be located at the connection-peg (2) that matches with supply hub on the fluorescent lamp base of being suitable at LED fluorescent tube body (1) two ends;
Described LED fluorescent tube body (1) comprising: the base of aluminium section bar (1-4), be located at power drives plate (1-2) in the base (1-4), be located at the LED lamp plate (1-3) of base (1-4) top end face and be equipped with Transparent lamp shade (1-1) on base (1-4).
2. LED fluorescent lamp according to claim 1 is characterized in that: the circuit on the described power drives plate (1-2) comprises antisurge holding circuit, EMC filter circuit, overvoltage crowbar, full bridge rectifier, circuit of power factor correction, decompression voltage regulator and the PWM modulation and the wealthy current circuit of constant current of series connection successively; The current output terminal of PWM modulation and the wealthy current circuit of constant current links to each other with the led array on the LED lamp plate (1-3).
3. LED fluorescent lamp according to claim 1 is characterized in that: each LED on the described LED lamp plate (1-3) equidistantly is arranged on the center line of LED lamp plate (1-3).
4. LED fluorescent lamp according to claim 2 is characterized in that: described circuit of power factor correction comprises: first diode (D1), second diode (D2), the 3rd diode (D3), the 3rd electric capacity (C3) and the 4th electric capacity (C4);
After linking to each other, the anode of second diode (D2) and the 3rd diode (D3) connects the negative pole end of described full bridge rectifier, the negative electrode of second diode (D2) connects the anode of first diode (D1), the negative electrode of first diode (D1) connects the positive terminal of described full bridge rectifier, and the negative electrode of the 3rd diode (D3) is connected in series the negative electrode that meets first diode (D1) behind the 4th electric capacity (C4).
5. according to claim 2 or 4 described LED fluorescent lamps, it is characterized in that: described PWM modulation and the wealthy current circuit of constant current comprise: PWM controller (IC1), be used to drive the wealthy current circuit of constant current of described led array and be used to feed back the feedback circuit of the current information of described led array to PWM controller (IC1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202052205U CN201672328U (en) | 2010-05-27 | 2010-05-27 | LED fluorescent lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202052205U CN201672328U (en) | 2010-05-27 | 2010-05-27 | LED fluorescent lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201672328U true CN201672328U (en) | 2010-12-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202052205U Expired - Fee Related CN201672328U (en) | 2010-05-27 | 2010-05-27 | LED fluorescent lamp |
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| Country | Link |
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| CN (1) | CN201672328U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102644862A (en) * | 2011-02-21 | 2012-08-22 | 隆达电子股份有限公司 | Lamp tube structure and assembly thereof |
| CN102651928A (en) * | 2011-02-25 | 2012-08-29 | 黄焕珠 | LED fluorescent lamp with over-voltage protection function |
| WO2012127387A1 (en) * | 2011-03-22 | 2012-09-27 | Cosmo Wealth Creation Limited | Light tube |
| CN102927515A (en) * | 2011-08-08 | 2013-02-13 | 刘锡喜 | Light emitting diode (LED) lamp tube with emergency dimming and lighting functions |
| CN103096587A (en) * | 2012-12-31 | 2013-05-08 | 杭州鸿雁东贝光电科技有限公司 | Intelligent lighting system |
| WO2013177726A1 (en) * | 2012-06-01 | 2013-12-05 | Li Shiping | Universal led light-emitting system |
| WO2018040132A1 (en) * | 2016-08-31 | 2018-03-08 | 广东欧曼科技股份有限公司 | Non-isolated switched power supply for high voltage led strip |
| CN108650727A (en) * | 2018-03-23 | 2018-10-12 | 深圳市电明科技股份有限公司 | A kind of LED light device |
-
2010
- 2010-05-27 CN CN2010202052205U patent/CN201672328U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102644862A (en) * | 2011-02-21 | 2012-08-22 | 隆达电子股份有限公司 | Lamp tube structure and assembly thereof |
| US8827486B2 (en) | 2011-02-21 | 2014-09-09 | Lextar Electronics Corporation | Lamp tube structure and assembly thereof |
| CN102651928A (en) * | 2011-02-25 | 2012-08-29 | 黄焕珠 | LED fluorescent lamp with over-voltage protection function |
| WO2012127387A1 (en) * | 2011-03-22 | 2012-09-27 | Cosmo Wealth Creation Limited | Light tube |
| CN102927515A (en) * | 2011-08-08 | 2013-02-13 | 刘锡喜 | Light emitting diode (LED) lamp tube with emergency dimming and lighting functions |
| WO2013177726A1 (en) * | 2012-06-01 | 2013-12-05 | Li Shiping | Universal led light-emitting system |
| CN103096587A (en) * | 2012-12-31 | 2013-05-08 | 杭州鸿雁东贝光电科技有限公司 | Intelligent lighting system |
| WO2018040132A1 (en) * | 2016-08-31 | 2018-03-08 | 广东欧曼科技股份有限公司 | Non-isolated switched power supply for high voltage led strip |
| CN108650727A (en) * | 2018-03-23 | 2018-10-12 | 深圳市电明科技股份有限公司 | A kind of LED light device |
| WO2019179007A1 (en) * | 2018-03-23 | 2019-09-26 | 深圳市电明科技股份有限公司 | Led lighting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101215 Termination date: 20130527 |