CN204634128U - A kind of LED cylinder - Google Patents
A kind of LED cylinder Download PDFInfo
- Publication number
- CN204634128U CN204634128U CN201520356645.9U CN201520356645U CN204634128U CN 204634128 U CN204634128 U CN 204634128U CN 201520356645 U CN201520356645 U CN 201520356645U CN 204634128 U CN204634128 U CN 204634128U
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- China
- Prior art keywords
- light
- emitting diode
- output
- driving chip
- rectifier bridge
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Abstract
The utility model relates to a kind of LED cylinder, comprise aluminium base, light-emitting diode and the lamp housing for fixing aluminium base, described light-emitting diode is fixed on aluminium base, described aluminium base is also provided with for alternating voltage being converted to the voltage conversion circuit of direct voltage output to light-emitting diode; Described voltage conversion circuit comprises rectifier bridge, driving chip and resistance R1, the first input end of described rectifier bridge and the electrical connection of the second input Jun Yu city, and the first output of rectifier bridge is connected with the positive pole of light-emitting diode, the second output head grounding of rectifier bridge; The negative pole of the output connecting luminous diode of described driving chip, one end of the control end contact resistance R1 of described driving chip, equal ground connection is held on the other end of resistance R1 and the ground of driving chip, and it can reduce the cost of product, in the life-span of improving product, there is higher cost performance.
Description
Technical field
The utility model relates to a kind of LED cylinder.
Background technology
Lamp cylinder is a kind of lighting being embedded into light down-ejection type in ceiling, half in hotel, family, coffee shop use more.Its maximum feature is exactly to keep the entirety of building decoration unified and perfect, can not destroy the perfect unity of furred ceiling art because of the setting of light fixture.Existing LED cylinder is all need to arrange a Switching Power Supply in addition, and could use and carry out illumination work, Switching Power Supply has a lot of electronic component, as electrochemical capacitor, transformer etc., is all easy to aged deterioration, causes shorten the useful life of LED cylinder.
Utility model content
For above-mentioned technical problem, the purpose of this utility model is to provide a kind of LED cylinder, and it can reduce the cost of product, the life-span of improving product, has higher cost performance.
For achieving the above object, the utility model adopts following technical scheme:
A kind of LED cylinder, comprise aluminium base, light-emitting diode and the lamp housing for fixing aluminium base, described light-emitting diode is fixed on aluminium base, described aluminium base is also provided with for alternating voltage being converted to the voltage conversion circuit of direct voltage output to light-emitting diode; Described voltage conversion circuit comprises rectifier bridge, driving chip and resistance R1, the first input end of described rectifier bridge and the electrical connection of the second input Jun Yu city, and the first output of rectifier bridge is connected with the positive pole of light-emitting diode, the second output head grounding of rectifier bridge; The negative pole of the output connecting luminous diode of described driving chip, one end of the control end contact resistance R1 of described driving chip, equal ground connection is held on the other end of resistance R1 and the ground of driving chip.
Preferably, described light-emitting diode comprises the first light-emitting diode, second light-emitting diode, 3rd light-emitting diode and the 4th light-emitting diode, the output of described driving chip comprises the first output, second output, 3rd output and the 4th output, the positive pole of described first light-emitting diode connects the first output of rectifier bridge, the negative pole of described first light-emitting diode is all connected with the first output of driving chip with the positive pole of the second light-emitting diode, the negative pole of described second light-emitting diode is all connected with the second output of driving chip with the positive pole of the 3rd light-emitting diode, the negative pole of described 3rd light-emitting diode is all connected with the 3rd output of driving chip with the positive pole of the 4th light-emitting diode, the negative pole of described 4th light-emitting diode connects the 4th output of driving chip.
Compared to existing technology, the beneficial effects of the utility model are:
Replace Switching Power Supply of the prior art by voltage conversion circuit, its circuit structure is simple, and the device of use is few, and cost is low, longer in the use upper life-span.
Accompanying drawing explanation
Fig. 1 is the circuit structure diagram of voltage conversion circuit of the present utility model.
Embodiment
Below, by reference to the accompanying drawings and embodiment, the utility model is described further:
See Fig. 1, a kind of LED cylinder that the present embodiment provides, it comprises aluminium base, light-emitting diode D and the lamp housing for fixing aluminium base, according to prior art, lamp housing is positioned at the back side of aluminium base, and light-emitting diode D is positioned at the front of aluminium base, and the front of usual aluminium base is also fixed with a transparent face mask, the light that light-emitting diode is sent is through face shield treatment with irradiation, and face shield plays dust-proof effect.Light-emitting diode is fixed on aluminium base, aluminium base is also provided with for alternating voltage being converted to the voltage conversion circuit 7 of direct voltage output to light-emitting diode D; What the Switching Power Supply of prior art realized is, and be converted to by civil power can for the direct current of LED, in the present embodiment, Switching Power Supply is replaced by voltage conversion circuit 7, integrated circuit is utilized to realize alternating current to galvanic conversion, voltage conversion circuit is directly integrated on aluminium base, make production technology simple, or the mode of paster also can be adopted directly to be attached on light source board.Concrete, voltage conversion circuit 7 comprises rectifier bridge BG1, driving chip U1 and resistance R1, the first input end a of rectifier bridge BG1 is all connected with civil power Vac with the second input b, and the first output c of rectifier bridge BG1 is connected with the positive pole of light-emitting diode, the second output d ground connection of rectifier bridge BG1; The negative pole of the output connecting luminous diode D of driving chip U1, one end of the control end 5 contact resistance R1 of driving chip U1, the other end of resistance R1 and the ground end 6 of driving chip U1 all ground connection.The solid-state element that voltage conversion circuit 7 in the present embodiment adopts is little, thus effectively raises the useful life of LED cylinder, and reduces cost.Rectifier bridge BG1 carries out voltage transitions to civil power Vac and becomes direct current for light-emitting diode.
The number of light-emitting diode D is not limited to one, the positive pole of light-emitting diode D is all be connected with the first output d of rectifier bridge BG1, the negative pole of light-emitting diode D is all be connected with the output of driving chip U1, the quantity of light-emitting diode D has several, the output of driving chip U1 just should have several mutually, and the present embodiment continues to be further described with the situation that the quantity of light-emitting diode D is 4.
Light-emitting diode D comprises the first light-emitting diode D1, second light-emitting diode D2, 3rd light-emitting diode D3 and the 4th light-emitting diode D4, first light-emitting diode D1, second light-emitting diode D2, between 3rd light-emitting diode D3 and the 4th light-emitting diode D4, forward is connected in series composition one article of series arm, the output of driving chip U1 comprises the first output 1, second output 2, 3rd output 3 and the 4th output 4, the positive pole of the first light-emitting diode D1 connects the first output D of rectifier bridge BG1, the negative pole of the first light-emitting diode D1 is all connected with first output 1 of driving chip U1 with the positive pole of the second light-emitting diode D2, the negative pole of the second light-emitting diode D2 is all connected with second output 2 of driving chip U1 with the positive pole of the 3rd light-emitting diode D3, the negative pole of the 3rd light-emitting diode D3 is all connected with the 3rd output 3 of driving chip U1 with the positive pole of the 4th light-emitting diode D4, the negative pole of the 4th light-emitting diode D4 connects the 4th output 4 of driving chip U1.The resistance size of resistance R1 is selected according to actual requirement when producing, and according to the resistance of resistance R1, driving chip U1 can control the constant current of light-emitting diode D, and namely driving chip U1 can export constant current to light-emitting diode D according to the resistance of resistance R1.Driving chip U1 can open four light-emitting diodes step by step, realizes high efficiency high power.
To one skilled in the art, according to technical scheme described above and design, other various corresponding change and deformation can be made, and all these change and deformation all should belong within the protection range of the utility model claim.
Claims (2)
1. a LED cylinder, it is characterized in that, comprise aluminium base, light-emitting diode and the lamp housing for fixing aluminium base, described light-emitting diode is fixed on aluminium base, described aluminium base is also provided with for alternating voltage being converted to the voltage conversion circuit of direct voltage output to light-emitting diode; Described voltage conversion circuit comprises rectifier bridge, driving chip and resistance R1, the first input end of described rectifier bridge and the electrical connection of the second input Jun Yu city, and the first output of rectifier bridge is connected with the positive pole of light-emitting diode, the second output head grounding of rectifier bridge; The negative pole of the output connecting luminous diode of described driving chip, one end of the control end contact resistance R1 of described driving chip, equal ground connection is held on the other end of resistance R1 and the ground of driving chip.
2. LED cylinder as claimed in claim 1, it is characterized in that, described light-emitting diode comprises the first light-emitting diode, second light-emitting diode, 3rd light-emitting diode and the 4th light-emitting diode, the output of described driving chip comprises the first output, second output, 3rd output and the 4th output, the positive pole of described first light-emitting diode connects the first output of rectifier bridge, the negative pole of described first light-emitting diode is all connected with the first output of driving chip with the positive pole of the second light-emitting diode, the negative pole of described second light-emitting diode is all connected with the second output of driving chip with the positive pole of the 3rd light-emitting diode, the negative pole of described 3rd light-emitting diode is all connected with the 3rd output of driving chip with the positive pole of the 4th light-emitting diode, the negative pole of described 4th light-emitting diode connects the 4th output of driving chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520356645.9U CN204634128U (en) | 2015-05-28 | 2015-05-28 | A kind of LED cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520356645.9U CN204634128U (en) | 2015-05-28 | 2015-05-28 | A kind of LED cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204634128U true CN204634128U (en) | 2015-09-09 |
Family
ID=54053104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520356645.9U Expired - Fee Related CN204634128U (en) | 2015-05-28 | 2015-05-28 | A kind of LED cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204634128U (en) |
-
2015
- 2015-05-28 CN CN201520356645.9U patent/CN204634128U/en not_active Expired - Fee Related
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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: 20150909 Termination date: 20180528 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |