CN203979971U - The LED lamp that a kind of brightness is adjustable - Google Patents
The LED lamp that a kind of brightness is adjustable Download PDFInfo
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- CN203979971U CN203979971U CN201420424700.9U CN201420424700U CN203979971U CN 203979971 U CN203979971 U CN 203979971U CN 201420424700 U CN201420424700 U CN 201420424700U CN 203979971 U CN203979971 U CN 203979971U
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- 239000011159 matrix material Substances 0.000 claims abstract description 12
- 239000003518 caustics Substances 0.000 claims abstract description 8
- 230000001105 regulatory effect Effects 0.000 claims description 10
- 230000002093 peripheral effect Effects 0.000 claims description 7
- 238000001514 detection method Methods 0.000 claims description 4
- 238000005286 illumination Methods 0.000 abstract description 2
- 230000003287 optical effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002277 temperature effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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Abstract
The utility model relates to illumination optical technical field, a kind of brightness that can effectively regulate LED lamp is provided, simple in structure, the LED lamp that lower-cost brightness is adjustable, comprise matrix, described matrix ecto-entad sets gradually lampshade, LED installing plate and LED brightness adjustment control circuit board, described lampshade inner face is made as bowl-shape reflective surface, on the opening part of lampshade, be arranged with caustic surface, described LED installing plate is made as round table-like and on periphery, sets gradually from lower to upper the LED mounting layer of multilayer along central shaft, LED brightness adjustment control circuit board is provided with LED control output end, the LED lamp being installed on LED installing plate is connected with the LED control output end on LED brightness adjustment control circuit board, the power input of described LED brightness adjustment control circuit board is drawn by a power line protection handle by power line in matrix.
Description
Technical field
The utility model relates to illumination optical technical field, particularly the adjustable LED lamp of a kind of brightness.
Background technology
Semiconductor light-emitting-diode (LED) illuminating product, is the environmental protection and energy saving product that current country widelys popularize, and LED light fixture has luminous efficiency high, long service life, and driving voltage is low, the advantage that fast reaction and power consumption are low, market and application prospect are very wide.The power supply mode of LED adopts direct current mostly at present, the power supply adopting is all to pass through civil power, and then by rectifier bridge, interchange is converted to direct current, due to the difference of lamp onboard led quantity, need to make Control of Voltage on each LED within the specific limits, otherwise will cause LED luminosity to differ, there is sometimes flicker, conventional settling mode is to utilize special LED light modulation IC to regulate the brightness of LED, but this special light modulation IC complex structure, cost is higher, has increased the cost of LED drive circuit.
Utility model content
Therefore, for above-mentioned problem, the utility model proposes a kind of brightness that can effectively regulate LED lamp, simple in structure, the LED lamp that lower-cost brightness is adjustable.
For realizing above-mentioned technical problem, the solution that the utility model is taked is: the LED lamp that a kind of brightness is adjustable, comprise matrix, described matrix ecto-entad sets gradually lampshade, LED installing plate and LED brightness adjustment control circuit board, described lampshade inner face is made as bowl-shape reflective surface, on the opening part of lampshade, be arranged with caustic surface, described LED installing plate is made as round table-like and on periphery, sets gradually from lower to upper the LED mounting layer of multilayer along central shaft, LED brightness adjustment control circuit board is provided with LED control output end, the LED lamp being installed on LED installing plate is connected with the LED control output end on LED brightness adjustment control circuit board, the power input of described LED brightness adjustment control circuit board is drawn by a power line protection handle by power line in matrix.
Further: described LED brightness adjustment control circuit board is provided with brightness regulating circuit, booster circuit, FET drive circuit and LED control output end, the positive terminal of LED control output end is connected with the positive pole of the LED lamp of LED array plate, and the negative terminals of LED control output end is connected with the negative pole of the LED lamp of LED array plate; Described brightness regulating circuit is made up of digital regulation resistance RS1 and peripheral circuit thereof, the RW end of described digital regulation resistance RS1 connects and composes bleeder circuit by wire and resistance R 43, PD, PU end contact resistance R9 and the R10 respectively of described digital regulation resistance RS1, and the other end of R9 and R10 is connected a dc source side by side; Described booster circuit is made up of boost chip U9 and peripheral circuit thereof, described in the boost positive terminal of the Vsw of chip U9 and the common access of FB end LED control output end; Described FET drive circuit is made up of amplifier U10, FET Q10B and detection current resistor R49, wherein the positive terminal of amplifier U10 is connected with the RW end of the digital regulation resistance RS1 of described brightness regulating circuit, ground connection after the negative phase end Series detectors current resistor R49 of amplifier U10, after the output series connection FET Q10B of described amplifier U10, access the negative terminals of LED control output end, ground connection after FET Q10B Series detectors current resistor R49.
By adopting aforementioned techniques scheme, the beneficial effects of the utility model are: the LED lamp that above-mentioned brightness is adjustable, take the LED mounting structure of hierarchical structure, can must just can produce different brightness effects by the light on and off of the LED of control different levels, be the structural design of many brightness degrees, so and because be that hierarchy has also obtained corresponding suitable colour temperature effect in changing brightness, adopt the adjustable LED lamp of brightness of this structure, without utilizing special LED light modulation IC to regulate and can carry out brightness change the brightness of LED, simple in structure and easy to operate, further, what described LED installing plate was taked is round table-like structure, LED mounting layer is around central shaft from lower to upper on the periphery of being located at round table-like structure of layering, be that each layer of LED lamp is respectively in the time that main shaft forms the angle of different directions formed objects for one week, light-emitting area size to each LED lamp of reflective surface A very closely connects, and also very closely connect to the light-emitting area size of reflective surface B or C, namely arrive reflective surface A, the light of reflective surface B and reflective surface C is from the LED lamp of different layers position, with different lighting angles, but they are all loose through the reflective follow-up supervention of reflective surface, finally form the covering of the same area at caustic surface, when the light on and off of LED lamp that utilize different levels realize many grades brightness regulation, mainly that the height of realizing brightness changes and can not cause the change of range of exposures, can solve in prior art each layer of LED in different levels, the divergence of beam range of exposures difference of LED lamp, utilize the brightness of each layer of LED to change the problem of the brightness change of the different range causing while realizing brightness regulation, the LED lamp of for example hierarchical structure of the prior art, retain the brightness of orlop light, while closing upper strata light, light-illuminating scope will be dwindled to center from periphery, if close orlop light, when opening upper strata light, light-illuminating scope is mainly around located around center, and the lamplight brightness of the center range of light will be less than surrounding brightness, even there is dark district, the very uneven realization that is also unfavorable for brightness regulation of WBR Luminance Distribution, and round table-like structure and the reflective surface of bowl structure of lampshade inner face and the perfect adaptation of the caustic surface of opening part that the LED installing plate of the adjustable LED lamp of described brightness adopts, can be good at addressing this problem, effectively realize the adjusting of many grades brightness, further, digital regulation resistance RS1 and resistance R 43 on the LED brightness regulation control circuit board of the LED lamp that described brightness is adjustable form bleeder circuit, the positive terminal of the voltage access amplifier U10 getting on digital regulation resistance RS1, and the negative termination of amplifier U10 detects the voltage that current resistor R49 obtains, two voltages compare determine the conducting of FET Q10B and close in amplifier U10, just can draw divided by detecting current resistor R49 the lowest high-current value that flows through LED lamp by the dividing potential drop on digital regulation resistance RS1, like this by changing the dividing potential drop on digital regulation resistance RS1, the resistance that namely changes digital regulation resistance RS1 just can change the lowest high-current value that flows through LED lamp, and the electric current that flows through LED lamp has determined its luminosity, the i.e. brightness of the LED lamp under a certain brightness degree can also be carried out further brightness regulation by the resistance that regulates digital regulation resistance RS1, further improve brightness regulation effect, the grade of brightness regulation further improves, regulating effect is good.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model embodiment.
Fig. 2 is the circuit diagram of the LED brightness adjustment control circuit board of the utility model embodiment.
Detailed description of the invention
Now with specific embodiment, the utility model is further illustrated by reference to the accompanying drawings.
With reference to figure 1, what the utility model embodiment disclosed is, the LED lamp that a kind of brightness is adjustable, comprise matrix 1, described matrix 1 ecto-entad sets gradually lampshade 2, LED installing plate 3 and LED brightness adjustment control circuit board 4, described lampshade 2 inner faces are made as bowl-shape reflective surface, on the opening part of lampshade 2, be arranged with caustic surface 5, described LED installing plate 3 is made as round table-like and on periphery, sets gradually from lower to upper the LED mounting layer of multilayer along central shaft, LED brightness adjustment control circuit board 4 is provided with LED control output end, the LED lamp being installed on LED installing plate 3 is connected with the LED control output end on LED brightness adjustment control circuit board 4, the power input of described LED brightness adjustment control circuit board 4 is drawn by a power line protection handle 6 by power line in matrix 1.Take the LED mounting structure of hierarchical structure, can must just can produce different brightness effects by the light on and off of the LED of control different levels, be the structural design of many brightness degrees, so and because be that hierarchy has also obtained corresponding suitable colour temperature effect in changing brightness, adopt the adjustable LED lamp of brightness of this structure, without utilizing special LED light modulation IC to regulate and can carry out brightness change the brightness of LED, simple in structure and easy to operate, further, what described LED installing plate 3 was taked is round table-like structure, LED mounting layer is around central shaft from lower to upper on the periphery of being located at round table-like structure of layering, be that each layer of LED lamp is respectively in the time that main shaft forms the angle of different directions formed objects for one week, light-emitting area size to each LED lamp of reflective surface A very closely connects, and also very closely connect to the light-emitting area size of reflective surface B or C, namely arrive reflective surface A, the light of reflective surface B and reflective surface C is from the LED lamp of different layers position, with different lighting angles, but they are all loose through the reflective follow-up supervention of reflective surface, finally form the covering of the same area at caustic surface, when the light on and off of LED lamp that utilize different levels realize many grades brightness regulation, mainly that the height of realizing brightness changes and can not cause the change of range of exposures, can solve in prior art each layer of LED in different levels, the divergence of beam range of exposures difference of LED lamp, utilize the brightness of each layer of LED to change the problem of the brightness change of the different range causing while realizing brightness regulation, the LED lamp of for example hierarchical structure of the prior art, retain the brightness of orlop light, while closing upper strata light, light-illuminating scope will be dwindled to center from periphery, if close orlop light, when opening upper strata light, light-illuminating scope is mainly around located around center, and the lamplight brightness of the center range of light will be less than surrounding brightness, even there is dark district, the very uneven realization that is also unfavorable for brightness regulation of WBR Luminance Distribution, and round table-like structure and the reflective surface of bowl structure of lampshade 2 inner faces and the perfect adaptation of the caustic surface of opening part that the LED installing plate 3 of the adjustable LED lamp of described brightness adopts, can be good at addressing this problem, effectively realize the adjusting of many grades brightness.
With reference to figure 2, described LED brightness adjustment control circuit board 4 is provided with brightness regulating circuit, booster circuit, FET drive circuit and LED control output end, the positive terminal of LED control output end is connected with the positive pole of the LED lamp of LED array plate, and the negative terminals of LED control output end is connected with the negative pole of the LED lamp of LED array plate; Described brightness regulating circuit is made up of digital regulation resistance RS1 and peripheral circuit thereof, the RW end of described digital regulation resistance RS1 connects and composes bleeder circuit by wire and resistance R 43, PD, PU end contact resistance R9 and the R10 respectively of described digital regulation resistance RS1, and the other end of R9 and R10 is connected a dc source side by side; Described booster circuit is made up of boost chip U9 and peripheral circuit thereof, described in the boost positive terminal of the Vsw of chip U9 and the common access of FB end LED control output end; Described FET drive circuit is made up of amplifier U10, FET Q10B and detection current resistor R49, wherein the positive terminal of amplifier U10 is connected with the RW end of the digital regulation resistance RS1 of described brightness regulating circuit, ground connection after the negative phase end Series detectors current resistor R49 of amplifier U10, after the output series connection FET Q10B of described amplifier U10, access the negative terminals of LED control output end, ground connection after FET Q10B Series detectors current resistor R49.
The LED lamp that described brightness is adjustable, the chip U9 that boosts coordinates peripheral circuit composition booster circuit, improves the driving voltage of LED lamp demand, and LED lamp and FET Q10B and detection current resistor R49 are cascaded as the load of booster circuit, digital regulation resistance RS1 and resistance R 43 form bleeder circuit, the positive terminal of the voltage access amplifier U10 getting on digital regulation resistance RS1, and the negative termination of amplifier U10 detects the voltage that current resistor R49 obtains, two voltages compare determine the conducting of FET Q10B and close in amplifier U10, just can draw divided by detecting current resistor R49 the lowest high-current value that flows through LED lamp by the dividing potential drop on digital regulation resistance RS1, like this by changing the dividing potential drop on digital regulation resistance RS1, the resistance that namely changes digital regulation resistance RS1 just can change the lowest high-current value that flows through LED lamp, and the electric current that flows through LED lamp has determined its luminosity, PD, PU end contact resistance R9 and the R10 respectively of digital regulation resistance RS1, and the other end of R9 and R10 is connected a dc source side by side, form external key circuit, can directly regulate the resistance of digital regulation resistance by external key circuit, therefore just can directly adjust the luminosity of LED lamp by external key circuit.
The adjustable LED lamp of brightness of design in sum, without utilizing special LED light modulation IC just can realize the brightness regulation of LED, overall structure is simple, has reduced manufacturing cost.
Above record, only, for utilizing the embodiment of this origination techniques content, modification, variation that any those skilled in the art use this creation to do, all belong to the scope of the claims that this creation is advocated, and be not limited to those disclosed embodiments.
Claims (2)
1. the LED lamp that brightness is adjustable, comprise matrix, it is characterized in that: described matrix ecto-entad sets gradually lampshade, LED installing plate and LED brightness adjustment control circuit board, described lampshade inner face is made as bowl-shape reflective surface, on the opening part of lampshade, be arranged with caustic surface, described LED installing plate is made as round table-like and on periphery, sets gradually from lower to upper the LED mounting layer of multilayer along central shaft, LED brightness adjustment control circuit board is provided with LED control output end, the LED lamp being installed on LED installing plate is connected with the LED control output end on LED brightness adjustment control circuit board, the power input of described LED brightness adjustment control circuit board is drawn by a power line protection handle by power line in matrix.
2. the adjustable LED lamp of brightness according to claim 1, it is characterized in that: described LED brightness adjustment control circuit board is provided with brightness regulating circuit, booster circuit, FET drive circuit and LED control output end, the positive terminal of LED control output end is connected with the positive pole of the LED lamp of LED array plate, and the negative terminals of LED control output end is connected with the negative pole of the LED lamp of LED array plate; Described brightness regulating circuit is made up of digital regulation resistance RS1 and peripheral circuit thereof, the RW end of described digital regulation resistance RS1 connects and composes bleeder circuit by wire and resistance R 43, PD, PU end contact resistance R9 and the R10 respectively of described digital regulation resistance RS1, and the other end of R9 and R10 is connected a dc source side by side; Described booster circuit is made up of boost chip U9 and peripheral circuit thereof, described in the boost positive terminal of the Vsw of chip U9 and the common access of FB end LED control output end; Described FET drive circuit is made up of amplifier U10, FET Q10B and detection current resistor R49, wherein the positive terminal of amplifier U10 is connected with the RW end of the digital regulation resistance RS1 of described brightness regulating circuit, ground connection after the negative phase end Series detectors current resistor R49 of amplifier U10, after the output series connection FET Q10B of described amplifier U10, access the negative terminals of LED control output end, ground connection after FET Q10B Series detectors current resistor R49.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420424700.9U CN203979971U (en) | 2014-07-30 | 2014-07-30 | The LED lamp that a kind of brightness is adjustable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420424700.9U CN203979971U (en) | 2014-07-30 | 2014-07-30 | The LED lamp that a kind of brightness is adjustable |
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| Publication Number | Publication Date |
|---|---|
| CN203979971U true CN203979971U (en) | 2014-12-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420424700.9U Expired - Fee Related CN203979971U (en) | 2014-07-30 | 2014-07-30 | The LED lamp that a kind of brightness is adjustable |
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| Country | Link |
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| CN (1) | CN203979971U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107806575A (en) * | 2017-11-25 | 2018-03-16 | 绍兴上虞欧菲光电科技有限公司 | A kind of energy-saving LED lamp of brightness-adjustable |
-
2014
- 2014-07-30 CN CN201420424700.9U patent/CN203979971U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107806575A (en) * | 2017-11-25 | 2018-03-16 | 绍兴上虞欧菲光电科技有限公司 | A kind of energy-saving LED lamp of brightness-adjustable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| CB03 | Change of inventor or designer information |
Inventor after: Huang Aiwu Inventor before: Hong Xinqiang |
|
| COR | Change of bibliographic data | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20151207 Address after: 3, building 518108, building E, Xinhui Industrial Zone, Tong Tou third industrial zone, Shiyan district, Shiyan City, Shenzhen, Baoan District, Guangdong Patentee after: Shenzhen Yao Guang photoelectric Co., Ltd. Address before: 362300 Longjiang City, Quanzhou Province, the town of Nanan City, the British village of pool house, No. 67 Patentee before: Hong Xinqiang |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141203 Termination date: 20180730 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |