CN203375197U - Constant current LED fluorescent lamp - Google Patents
Constant current LED fluorescent lamp Download PDFInfo
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- CN203375197U CN203375197U CN201320311572.2U CN201320311572U CN203375197U CN 203375197 U CN203375197 U CN 203375197U CN 201320311572 U CN201320311572 U CN 201320311572U CN 203375197 U CN203375197 U CN 203375197U
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- circuit
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- fluorescent lamp
- led fluorescent
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Abstract
The utility model relates to the field of lighting lamps, in particular to a constant current LED fluorescent lamp. The constant current LED fluorescent lamp comprises a power driving circuit, an aluminum substrate provided with a plurality of LED light-emitting bodies, a lamp tube and end covers arranged at the two ends of the lamp tube. The lamp tube comprises an aluminum alloy base and a light-transmitting pipe arranged on the base. The power driving circuit comprises a lightning stroke and surge preventing circuit, an input filter circuit, a bridge rectifier circuit, a power factor correction circuit, a constant current driving circuit and an output rectifying and wave-filtering circuit. Clamping grooves are formed in the two inner sides of the base, the light-transmitting pipe is provided with clamping fasteners matched with the clamping grooves and is fastened to the base, and the aluminum substrate is clamped inside the base through matching of the clamping fasteners and the clamping grooves. The constant current LED fluorescent lamp is high in power factor and efficiency of a driving power source, complete in protection circuit, capable of preventing lightning stroke and surge, stable and firm in structure, good in heat dissipation performance, long in service life and easy and convenient to assemble, saves energy and protects environment.
Description
Technical field
The utility model relates to field of illuminating lamps, relates in particular to a kind of constant-current LED fluorescent lamp.
Background technology
The LED fluorescent lamp adopts highlighted LED white light as light emitting source, with traditional fluorescent lamp, compare, without starter and ballast, start fast, power is little, without stroboscopic, be not easy to produce visual fatigue, more energy-conservation and environmental protection.The LED fluorescent lamp is provided with driving power, and existing LED fluorescent lamp is because the efficiency of driving power is not high, and loss power is large, and unreasonable structure, cause its brightness not high, and heat dispersion is bad, makes the LED fluorescent lifetime not long, and assembling is complicated.
The utility model content
The purpose of this utility model is to provide a kind of constant-current LED fluorescent lamp for the existing problem of prior art, and its power factor and driving power efficiency are high, and holding circuit is complete; but anti-lightning surge, and stabilized structure, perfect heat-dissipating; longer service life, more energy-conserving and environment-protective, and simple and convenient assembly.
For achieving the above object, the utility model is achieved through the following technical solutions.
A kind of constant-current LED fluorescent lamp, comprise power driving circuit, be provided with the aluminium base of some LED illuminators, fluorescent tube and be located at the end cap of lamp tube ends, fluorescent tube comprises the aluminium alloy pedestal and is located at the light-transmission tube on pedestal, described power driving circuit comprises the anti-lightning surge circuit be electrically connected to the alternating current input, the output of described anti-lightning surge circuit is electrically connected to the input of input filter circuit, the output of described input filter circuit is electrically connected to the input of bridge rectifier, the output of described bridge rectifier is electrically connected to circuit of power factor correction, described circuit of power factor correction is electrically connected to constant-current drive circuit, described constant-current drive circuit is electrically connected to output rectifier and filter, described pedestal hollow and its two inboard are provided with draw-in groove, described light-transmission tube is provided with the buckle be complementary with described draw-in groove, the printing opacity pipe thread is located on pedestal, described aluminium base was arranged in pedestal by described buckle and coordinating of described draw-in groove.
Wherein, described constant-current drive circuit comprises constant-current driven chip U1, and described constant-current driven chip U1 is BP2808.
Wherein, the bottom transverse of two side bayonet slots of described pedestal is communicated with formation draw-in groove base plate, and described aluminium base and described draw-in groove base plate fit tightly.
Further, described aluminium base and described draw-in groove base plate are bonding by the heat conduction viscose glue.
Wherein, in the cross section outline of described fluorescent tube and the cross section of described end cap, profile adapts, and the two ends of fluorescent tube are embedded in two end cap respectively.
Wherein, described end cap is provided with power connection, and described power connection is electrically connected to described LED illuminator by described power driving circuit.
The beneficial effects of the utility model are: the power driving circuit of this constant-current LED fluorescent lamp comprises anti-lightning surge circuit, input filter circuit, bridge rectifier, circuit of power factor correction, constant-current drive circuit and output rectifier and filter, its driving power efficiency is high, holding circuit is complete, but the anti-lightning surge; Light-transmission tube is joined button by the draw-in groove of its buckle and pedestal and is located on pedestal, aluminium base firmly is placed in draw-in groove simultaneously, and its stabilized structure, without adopting fixture to be fixed light-transmission tube and aluminium base, assemble simple and convenient; And the heat that the LED illuminator produces can pass through the pedestal cavity quick heat radiating of aluminium base bottom, its perfect heat-dissipating, longer service life, more energy-conserving and environment-protective.
The accompanying drawing explanation
Below utilize accompanying drawing to be further described the utility model, but the embodiment in accompanying drawing does not form any restriction of the present utility model.
Fig. 1 is perspective view of the present utility model;
Fig. 2 is cross-sectional view of the present utility model;
Fig. 3 is decomposing state structural representation of the present utility model;
The circuit diagram that Fig. 4 is power driving circuit of the present utility model;
The frame diagram that Fig. 5 is power driving circuit of the present utility model.
In Fig. 1 to Fig. 5, include:
1, light-transmission tube; 2, aluminium base; 3, pedestal; 4, end cap;
11, buckle; 21, LED illuminator; 31, draw-in groove; 41, power connection;
61, anti-lightning surge circuit; 62, input filter circuit;
63, bridge rectifier; 64, circuit of power factor correction;
65, constant-current drive circuit; 66, output rectifier and filter.
The specific embodiment
Below in conjunction with embodiment, the utility model is further described.
As shown in Figures 1 to 5, a kind of constant-current LED fluorescent lamp, comprise power driving circuit, be provided with the aluminium base 2 of some LED illuminators 21, fluorescent tube and be located at the end cap 4 of lamp tube ends, fluorescent tube comprises aluminium alloy pedestal 3 and is located at the light-transmission tube 1 on pedestal 3, power driving circuit comprises the anti-lightning surge circuit 61 be electrically connected to the alternating current input, the output of anti-lightning surge circuit 61 is electrically connected to the input of input filter circuit 62, the output of input filter circuit 62 is electrically connected to the input of bridge rectifier 63, the output of bridge rectifier 63 is electrically connected to circuit of power factor correction 64, circuit of power factor correction 64 is electrically connected to constant-current drive circuit 65, constant-current drive circuit 65 is electrically connected to output rectifier and filter 66, pedestal 3 hollows and its two inboard are provided with draw-in groove 31, and light-transmission tube 1 is provided with the buckle 11 be complementary with draw-in groove 31, and light-transmission tube 1 button is located on pedestal 3, and aluminium base 2 was arranged in pedestal 3 by buckle 11 and coordinating of draw-in groove 31.The bottom transverse of two side bayonet slots 31 of pedestal 3 is communicated with formation draw-in groove base plate, and described aluminium base 2 is bonding by the heat conduction viscose glue with described draw-in groove base plate.In the cross section outline of fluorescent tube and the cross section of end cap 4, profile adapts, and the two ends of fluorescent tube are embedded at respectively in two end cap 4.The end cap 4 that is positioned at fluorescent tube one end is provided with power connection 41, and power connection 41 is electrically connected to LED illuminator 21 through power driving circuit.
The power driving circuit of the present embodiment comprises anti-lightning surge circuit 61, input filter circuit 62, bridge rectifier 63, circuit of power factor correction 64, constant-current drive circuit 65 and output rectifier and filter 66, and holding circuit is complete, but the anti-lightning surge.Circuit of power factor correction 64 provides power factor compensation, and its power factor can reach 0.95 ± 0.05, and power factor and driving power efficiency are high.Constant-current drive circuit 62 comprises constant-current driven chip U1, and described constant-current driven chip U1 is BP2808.The OUT end pin of BP2808 connects LED illuminator 21 by metal-oxide-semiconductor Q1, inductance L 3, diode D5.BP2808 has multiple LED defencive function, comprises LED open-circuit-protection, LED short-circuit protection, overheat protector etc.When the system failure occurs, power-supply system enters guard mode, knows trouble shooting, and system reenters normal mode of operation.
Light-transmission tube 1 is joined button by its buckle 11 and the draw-in groove 31 of pedestal 3 and is located on pedestal 3, aluminium base 2 firmly is placed in draw-in groove 31 simultaneously, and its stabilized structure, without adopting fixture to be fixed light-transmission tube 1 and aluminium base 2, assemble simple and convenient; And the heat that LED illuminator 21 produces can pass through the pedestal 3 cavity quick heat radiatings of aluminium base 2 bottoms, its perfect heat-dissipating, longer service life, more energy-conserving and environment-protective.
The input voltage 90-264V of this LED fluorescent lamp, input current 0.25mA, the luminous flux minimum of a value is 1350, the colour rendering index minimum of a value is 70, the cold light reference color temperature is 5200-6200K, power is 16W ± 10%, is equivalent to the illumination brightness of traditional fluorescent lamp 60W, Energy Intensity Reduction, light-transmission tube 1 is transparent PC material, its cross section is circular arc, and the cross section of aluminium alloy pedestal 3 is rectangular, and can reach more than 50,000 hours service life.
Above content is only preferred embodiment of the present utility model, for those of ordinary skill in the art, according to thought of the present utility model, all will change in specific embodiments and applications, this description should not be construed as restriction of the present utility model.
Claims (6)
1. a constant-current LED fluorescent lamp, comprise power driving circuit, be provided with aluminium base (2), the fluorescent tube of some LED illuminators (21) and be located at the end cap (4) of lamp tube ends, fluorescent tube comprises aluminium alloy pedestal (3) and is located at the light-transmission tube (1) on pedestal (3), it is characterized in that:
Described power driving circuit comprises the anti-lightning surge circuit (61) be electrically connected to the alternating current input, the output of described anti-lightning surge circuit (61) is electrically connected to the input of input filter circuit (62), the output of described input filter circuit (62) is electrically connected to the input of bridge rectifier (63), the output of described bridge rectifier (63) is electrically connected to circuit of power factor correction (64), described circuit of power factor correction (64) is electrically connected to constant-current drive circuit (65), described constant-current drive circuit (65) is electrically connected to output rectifier and filter (66),
Described pedestal (3) hollow and its two inboard are provided with draw-in groove (31), described light-transmission tube (1) is provided with the buckle (11) be complementary with described draw-in groove (31), it is upper that light-transmission tube (1) button is located at pedestal (3), and described aluminium base (2) was arranged in pedestal (3) by described buckle (11) and coordinating of described draw-in groove (31).
2. constant-current LED fluorescent lamp according to claim 1, it is characterized in that: described constant-current drive circuit (65) comprises constant-current driven chip U1, described constant-current driven chip U1 is BP2808.
3. constant-current LED fluorescent lamp according to claim 1 is characterized in that: the bottom transverse of two side bayonet slots (31) of described pedestal (3) is communicated with and forms the draw-in groove base plate, and described aluminium base (2) fits tightly with described draw-in groove base plate.
4. constant-current LED fluorescent lamp according to claim 3 is characterized in that: described aluminium base (2) is bonding by the heat conduction viscose glue with described draw-in groove base plate.
5. constant-current LED fluorescent lamp according to claim 1, it is characterized in that: in the cross section of the cross section outline of described fluorescent tube and described end cap (4), profile adapts, and the two ends of fluorescent tube are embedded at respectively in two end cap (4).
6. constant-current LED fluorescent lamp according to claim 1, it is characterized in that: described end cap (4) is provided with power connection (41), and described power connection (41) is electrically connected to described LED illuminator (21) by described power driving circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320311572.2U CN203375197U (en) | 2013-05-30 | 2013-05-30 | Constant current LED fluorescent lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320311572.2U CN203375197U (en) | 2013-05-30 | 2013-05-30 | Constant current LED fluorescent lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203375197U true CN203375197U (en) | 2014-01-01 |
Family
ID=49837725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320311572.2U Expired - Fee Related CN203375197U (en) | 2013-05-30 | 2013-05-30 | Constant current LED fluorescent lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203375197U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105972464A (en) * | 2015-03-10 | 2016-09-28 | 嘉兴山蒲照明电器有限公司 | LED straight tube lamp |
| US12085263B2 (en) | 2014-09-28 | 2024-09-10 | Jiaxing Super Lighting Electric Appliance Co., Ltd | LED tube lamp |
| US12092272B2 (en) | 2015-03-10 | 2024-09-17 | Jiaxing Super Lighting Electric Appliance Co., Ltd. | LED tube lamp |
-
2013
- 2013-05-30 CN CN201320311572.2U patent/CN203375197U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US12085263B2 (en) | 2014-09-28 | 2024-09-10 | Jiaxing Super Lighting Electric Appliance Co., Ltd | LED tube lamp |
| CN105972464A (en) * | 2015-03-10 | 2016-09-28 | 嘉兴山蒲照明电器有限公司 | LED straight tube lamp |
| US12092272B2 (en) | 2015-03-10 | 2024-09-17 | Jiaxing Super Lighting Electric Appliance Co., Ltd. | LED tube lamp |
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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: 20140101 Termination date: 20190530 |
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| CF01 | Termination of patent right due to non-payment of annual fee |