CN2890645Y - AC 220V semiconductor LED night light - Google Patents
AC 220V semiconductor LED night light Download PDFInfo
- Publication number
- CN2890645Y CN2890645Y CNU2006200331359U CN200620033135U CN2890645Y CN 2890645 Y CN2890645 Y CN 2890645Y CN U2006200331359 U CNU2006200331359 U CN U2006200331359U CN 200620033135 U CN200620033135 U CN 200620033135U CN 2890645 Y CN2890645 Y CN 2890645Y
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- CN
- China
- Prior art keywords
- circuit
- semiconductor led
- electric capacity
- led
- current
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
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- Led Devices (AREA)
- Rectifiers (AREA)
Abstract
The utility model provides an AC 220V semiconductor LED night light, wherein, an insulation casing is an opening type casing with standard plug interface with the opening fixed with a circuit board provided with a plurality of high luminance semiconductor LEDs; the AC input end of the circuit for rectifying electric current of the drive circuit of the semiconductor LED is connected in series with a pressure lowering constant current circuit composed of electric capacity, and the DC output end of the circuit for rectifying electric current is connected in parallel with an electric capacity for transient state protection and filtering composed of electric capacity and a semiconductor LED array. The utility model has the advantages of simplest structure, highest reliability, lowest cost, simplest manufacture and highest electricity saving efficiency. The light intensity of the LED is steady without scintillation and the LED is of long service time. The whole circuit is capacitive without polluting AC network and suitable for absorbing AC network pollution, thereby being an environmental protection circuit.
Description
Technical field
The utility model relates to a kind of general service lamp, the alternating-current 220 v semiconductor LED night-light that particularly a kind of daily life is used.
Background technology
Existing night-light incandescent lamp commonly used and fluorescent lamp, with under the constant power, their brightness is low, and power consumption is big, and the life-span is short.
The utility model content
In order to overcome above-mentioned deficiency, the utility model provides a kind of alternating-current 220 v semiconductor LED night-light.It is made up of insulation crust, semiconductor LED, led drive circuit and plug.It is characterized in that
Described insulation crust is a shell with open type of standard plug interface: the opening part of insulation crust is fixed with circuit board, and many high-brightness semiconductor LED are installed on the circuit board; The ac input end of the rectification circuit of the drive circuit of described semiconductor LED is in series with the step-down constant-current circuit that is made of electric capacity; The dc output end of described rectification circuit is parallel with the transient protection that is made of electric capacity and the electric capacity and the semiconductor LED array of filtering.
Described rectification circuit constitutes rectifier bridge by four diodes.
Described led array is connected in series by many high-brightness semiconductor LED and forms.
Compared with prior art, the beneficial effects of the utility model are: (one), high-brightness semiconductor LED volume is little, the life-span is long, luminous efficiency is high, without resistance, energy-conservation.(2), drive circuit is the simplest, reliability is the highest, cost is minimum, makes the simplyst, power saving is most effective.(3), the LED stabilized intensity, the flicker free sense.(4), since entire circuit be capacitive, help improving the power factor (PF) of AC network, pollution-free to AC network.Helping absorbing the pollution of AC network, is Environmental protection lamp.
Description of drawings
Fig. 1 is the front view of the utility model structure.
Fig. 2 is the vertical view of the utility model structure.
Fig. 3 is a drive circuit schematic diagram of the present utility model.
In Fig. 1,1. alternating current 220V input plug, 5. high-brightness semiconductor LED, 6. open type insulation crust.
In Fig. 2,5. high-brightness semiconductor LED, 6. open type insulation crust.7. circuit board
In Fig. 3,1. alternating current 220V input, 2. step-down constant current electric capacity, 3. rectification circuit, 4. filter capacitor, 5.LED array.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is elaborated.
In structure chart shown in Figure 1, the utility model comprises open type insulation crust (6), standard plug (1) and the circuit board (7) of high-brightness semiconductor LED (5) is housed.
In circuit shown in Figure 3, the drive circuit of alternating-current 220 v semiconductor LED night-light is by step-down constant current electric capacity (2), rectification circuit (3), and filter capacitor (4) and led array (5) are formed.The ac input end of rectification circuit (3) is in series with electric capacity (2); The led array (5) that the dc output end of rectification circuit (3) is parallel with electric capacity (4) and is in series by semiconductor LED.The rectifier bridge that rectification circuit (3) is made of four diodes.The step-down constant-current circuit of semiconductor LED night-light drive circuit adopts high-voltage capacitance (2); alternating current 220V is become low pressure constant current output; after rectifier bridge (3) rectification, obtain direct current; after transient protection, filter capacitor (4) filtering, obtain DC current more stably again, give high-brightness semiconductor led array (5) power supply.When disturbing, the voltage at electric capacity (4) two ends can not suddenly change, and has protected the operate as normal of semiconductor LED array (5).
Claims (3)
1, a kind of alternating-current 220 v semiconductor LED night-light is characterized in that, described insulation crust is a shell with open type of standard plug interface; The opening part of insulation crust is fixed with circuit board, and many high-brightness semiconductor LED are installed on the circuit board; The ac input end of the rectification circuit of the drive circuit of described semiconductor LED is in series with the step-down constant-current circuit that is made of electric capacity; The dc output end of described rectification circuit is parallel with the transient protection that is made of electric capacity and the electric capacity and the semiconductor LED array of filtering.
2, a kind of alternating-current 220 v semiconductor LED night-light according to claim 1 is characterized in that, described rectification circuit constitutes rectifier bridge by four diodes.
3, a kind of alternating-current 220 v semiconductor LED night-light according to claim 1 is characterized in that, described led array is connected in series by many high-brightness semiconductor LED and forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200331359U CN2890645Y (en) | 2006-02-21 | 2006-02-21 | AC 220V semiconductor LED night light |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200331359U CN2890645Y (en) | 2006-02-21 | 2006-02-21 | AC 220V semiconductor LED night light |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2890645Y true CN2890645Y (en) | 2007-04-18 |
Family
ID=38021305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006200331359U Expired - Fee Related CN2890645Y (en) | 2006-02-21 | 2006-02-21 | AC 220V semiconductor LED night light |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2890645Y (en) |
-
2006
- 2006-02-21 CN CNU2006200331359U patent/CN2890645Y/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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070418 |