CN2462546Y - Light-emitting diode pixel bulb - Google Patents
Light-emitting diode pixel bulb Download PDFInfo
- Publication number
- CN2462546Y CN2462546Y CN 01215084 CN01215084U CN2462546Y CN 2462546 Y CN2462546 Y CN 2462546Y CN 01215084 CN01215084 CN 01215084 CN 01215084 U CN01215084 U CN 01215084U CN 2462546 Y CN2462546 Y CN 2462546Y
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- Prior art keywords
- light
- emitting diode
- current circuit
- circuit
- continuous current
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Abstract
The utility model discloses a light-emitting diode pixel bulb, which aims to solve the problems that the prior art has the disadvantages of high cost, large volume and large power consumption. In the light-emitting diode pixel bulb of the utility model, the input end of a constant current circuit is provided with a pressure reducing circuit, and the constant current circuit is connected with a plurality of series connected photoelectric couplers and the light-emitting diodes controlled by the photoelectric couplers. A plurality of light emitting circuits are driven by one constant current power source, the number of the components can be reduced, and therefore, the utility model has the advantages of low cost, small size and low power consumption.
Description
The utility model relates to decorative lamp, and particularly one and the light-emitting diode pixel bulb.
In advertisement, during urban lighting is decorated, the pixel bulb is to be used for character display, pattern, the common tool of symbol, existing pixel bulb adopts incandescent lamp or monochromatic fluorescent tube mostly, power consumption is big, useful life is short, color change is single, recently, someone proposes to do with light-emitting diode the technical scheme of pixel bulb, its circuit theory such as Fig. 2, with red, blue, the light-emitting diode of green three kinds of colors is as light source, external digital control circuit, make it send versicolor light by colour mixture, realize various color change, the color that uses this pixel lamp that advertisement and urban lighting are decorated greatly enriches, its market potential is huge, but owing to drive the light-emitting diode group of three kinds of colors respectively with three road constant-current sources, the quantity of the components and parts that use is many, power consumption is big, the volume of circuit board is big, the cost height, and because light-emitting diode is in the dynamic duty process, even control circuit does not open circuit when the light-emitting diode group of being controlled is not worked yet, same consumes power makes the lamp body heating, and the limiting capacitor of constant-current supply damages easily in the circuit, the long-term back control circuit that uses is easily aging, has reduced the life-span of using.Light-emitting diode is the highest in the normal direction luminous intensity in addition, and the seven-colour lamp of this structure is not handled the light that light-emitting diode sends, and forms hot spot on lampshade, influences result of use.
The purpose of this utility model is to provide a kind of light-emitting diode pixel bulb, and power consumption is little, and cost is low, and volume is little, long service life; Its further purpose is that the light that light-emitting diode sends is handled, and makes pixel lamp send uniform light.
Light-emitting diode pixel bulb described in the utility model, comprise housing, lampshade, illuminating source, illuminating source is made of versicolor light-emitting diode, the circuit board of control light-emitting diode is housed in housing, the photoelectrical coupler and the bypass triode that contain continuous current circuit and control light-emitting diode in the described circuit board, the continuous current circuit contains limiting capacitor and rectifier bridge, input at the continuous current circuit has reduction voltage circuit, and the continuous current circuit is connected with the photoelectrical coupler of a plurality of series connection and the light-emitting diode of being controlled thereof;
Between described lampshade and illuminating source, mixing film is housed.
Because the input at the continuous current circuit has reduction voltage circuit, and the limiting capacitor in the continuous current circuit is worked in rated voltage all the time, prolong useful life; And the continuous current circuit is connected with the photoelectrical coupler of a plurality of series connection and the light-emitting diode of being controlled thereof, a continuous current power supply can drive a plurality of illuminating circuits, the quantity of components and parts can reduce greatly, thereby reduce cost, reduced volume reduces power consumption simultaneously, a plurality of photoelectrical couplers and light-emitting diode series connection, further reduced the voltage of each control circuit, each components and parts have been under the rated voltage work, further ensured the useful life of whole pixel lamp.
The utility model is described in further detail below in conjunction with drawings and Examples:
Fig. 1 is circuit theory diagrams of the present utility model;
Fig. 2 is the circuit theory diagrams of prior art;
Fig. 3 is a structural representation of the present utility model;
Embodiment 1
Light-emitting diode pixel bulb described in the utility model, comprise housing 1, lampshade 2, illuminating source, illuminating source is made of versicolor light-emitting diode 3, the circuit board 4 of control light-emitting diode 3 is housed in housing 1, the photoelectrical coupler 6 and the bypass triode 7 that contain continuous current circuit 5 and control light-emitting diode in the described circuit board 4, continuous current circuit 5 contains limiting capacitor 8 and rectifier bridge 9, input at continuous current circuit 5, the capacitor 10 of connecting with limiting capacitor 8, thereby to limiting capacitor 8 step-downs, the photoelectrical coupler 6 of the two ends of continuous current circuit 5 and three polyphones and three groups of being controlled thereof are respectively red, blue, green light-emitting diode 3 connects; Respectively control the light-emitting diode group of three kind different colours by photoelectrical coupler 6 by triode by the control signal of outer end input, realize the color proportioning:
Red+green+blue=white
Red+indigo plant=purple
Red+green=Huang
Indigo plant+green=green grass or young crops
Above-mentioned four kinds of color matchings add red, blue, green true qualities, make the light-emitting diode pixel lamp send seven kinds of color of light of variation.
Adopt the pixel lamp cost of this structure low, long-time use is not generated heat, and power consumption is 1/3rd of prior art, and the life-span is long, can directly link to each other with utility network, and is easy to use.
Embodiment 2
The mixing film 12 that is bowl-shape is housed between described lampshade 2 and illuminating source; All the other are identical with embodiment 1.
Claims (3)
1, the light-emitting diode pixel bulb, comprise housing (1), lampshade (2), illuminating source, illuminating source is made of versicolor light-emitting diode (3), the circuit board (4) of control light-emitting diode (3) is housed in housing (1), the photoelectrical coupler (6) and the bypass triode (7) that contain continuous current circuit (5) and control light-emitting diode (3) in the described circuit board (4), continuous current circuit (5) contains limiting capacitor (8) and rectifier bridge (9), it is characterized in that: the input at continuous current circuit (5) has reduction voltage circuit, and continuous current circuit (5) is connected with the photoelectrical coupler (6) of a plurality of series connection and the light-emitting diode of being controlled (3) thereof.
2, light-emitting diode pixel lamp according to claim 1 is characterized in that: between described illuminating source and lampshade (2) mixing film (12) is housed.
3, light-emitting diode pixel lamp according to claim 2 is characterized in that: described mixing film (12) is bowl-shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01215084 CN2462546Y (en) | 2001-02-02 | 2001-02-02 | Light-emitting diode pixel bulb |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01215084 CN2462546Y (en) | 2001-02-02 | 2001-02-02 | Light-emitting diode pixel bulb |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2462546Y true CN2462546Y (en) | 2001-11-28 |
Family
ID=33633723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01215084 Expired - Fee Related CN2462546Y (en) | 2001-02-02 | 2001-02-02 | Light-emitting diode pixel bulb |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2462546Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008067750A1 (en) * | 2006-12-07 | 2008-06-12 | Jung-Hsiang Yao | A serial led groups lighting device |
-
2001
- 2001-02-02 CN CN 01215084 patent/CN2462546Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008067750A1 (en) * | 2006-12-07 | 2008-06-12 | Jung-Hsiang Yao | A serial led groups lighting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |