CN1769771A - Self-starting mini night light - Google Patents
Self-starting mini night light Download PDFInfo
- Publication number
- CN1769771A CN1769771A CNA2004100732542A CN200410073254A CN1769771A CN 1769771 A CN1769771 A CN 1769771A CN A2004100732542 A CNA2004100732542 A CN A2004100732542A CN 200410073254 A CN200410073254 A CN 200410073254A CN 1769771 A CN1769771 A CN 1769771A
- Authority
- CN
- China
- Prior art keywords
- circuit
- resistance
- self
- mini light
- light night
- 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.)
- Pending
Links
Images
Abstract
The invention discloses a self-starting small night lamp, which comprises the following parts: AC-DC conversion circuit, self-starting circuit and lamp holder, wherein the self-starting circuit contains reference circuit and photoinduction circuit; the reference circuit parallels the output end of AC-DC conversion circuit; the photoinduction circuit contains at least series electric connection fixation resistance and light-sensitive resistance, whose electric connection point cascades LED with reference point of reference circuit; one end of fixation resistance connects the DC output positive pole of AC-DC conversion circuit in the light-sensitive circuit; the other end of light-sensitive resistance connects the DC output negative pole of AC-DC conversion circuit in the light-sensitive circuit; when the light is dark, the self-starting small night lamp will start automatically; when the light is bright, it will close automatically. The invention can be fixed at the needed position without adding power wiring board.
Description
Affiliated technical field:
The present invention relates to a kind of mini light night, particularly a kind of self-starting mini light night.
Background technology:
The general light of mini light night is darker, and often being used in has in the environment that child and old man need look after night.Can see the thing in room during unlatching on the one hand clearly, can not influence other people again and have a rest.Yet mini light night all is the unlatching of controlling lamp by hand switch, and open to evening every day, at day power cutoff.Because the mini light night low price, the switch of most of mini light nights is fair, often uses and can damage switch, and mini light night can not be opened or turn-off.This mini light night adopts mostly and is injected with inert gas neon tube, as easy as rolling off a log damage.
In addition, mini light night generally all is for making things convenient for the old man or looking after child and use, it is fixed on the position that people stretch out one's hand easily, and existing mini light night all is to carry plug, all need to increase in addition a power patch panel generally speaking, power patch panel is fixed to the position that staff reaches easily, makes troubles to use.
Summary of the invention:
One of purpose of the present invention provides a kind of self-starting mini light night, and when when light is dark, it can be opened automatically; It can be closed automatically when light is bright, the convenient use, and price is low, reliability is high, low in energy consumption.
Another object of the present invention is that it need not to increase in addition the position that power patch panel just can conveniently be fixed on to be needed.
The object of the present invention is achieved like this, self-starting mini light night, it is made up of ac-dc converter circuit, automatic open circuit and lamp holder, it is characterized in that: open circuit is to comprise the accurate circuit of a roadbed and another road photoinduction circuit that is attempted by the ac-dc converter circuit dc output end automatically, photoinduction circuit comprises at least and is electrically connected in series fixed resistance, photo resistance that its electric connection point is connected in series LED with the reference circuit datum mark.
The positive pole of the termination ac-dc converter circuit dc output end wherein of the fixed resistance in the described photoinduction circuit; Negative terminal one side of another termination ac-dc converter circuit dc output end of the photo resistance in the photoinduction circuit.
The fixed resistance of the described photoinduction circuit threshold values resistance that is electrically connected with in parallel with the negative terminal of ac-dc converter circuit dc output end.
Be serially connected with current-limiting resistance between the negative terminal of described photo resistance and ac-dc converter circuit dc output end.
Described reference circuit is to be electrically connected in series to constitute the negative pole of another termination ac-dc converter circuit dc output end of mu balanced circuit by mu balanced circuit and current-limiting resistance; The positive pole of another termination ac-dc converter circuit dc output end of current-limiting resistance.
Described reference circuit is a voltage-stabiliser tube.
Is connected by electric wire between the lamp holder that described automatic open circuit and LED constitute, described automatic open circuit is fixed in the pedestal of lamp holder of LED formation.
The described lamp holder that is made of LED, LED wherein are chosen between 1-180.
On photo resistance RT and resistance R 3 and connect a resistance R 4, the resistance of R4 can be chosen in tens K Europe to K up to a hundred Europe, and reference voltage is chosen between 110 to 180 volts, and current-limiting resistance R2 is chosen between the 10-30K.
The course of work of the present invention is: the 220V alternating current obtains direct current voltage output by ac-dc converter circuit, is connected to reference circuit and photoinduction circuit at dc output end, and reference circuit is to be electrically connected in series by mu balanced circuit and current-limiting resistance to constitute; Photoinduction circuit comprises that at least fixed resistance, photo resistance are electrically connected in series formation, is electrically connected LED between the datum mark of its electric connection point and reference circuit.Light time is arranged, and the resistance value of photo resistance is very little, and after dividing potential drop was carried out in fixed resistance and photo resistance, its partial pressure value was lower than the voltage stabilizing value of the mu balanced circuit in the reference circuit, and the LED that be connected between 2 this moment can't conducting, so LED is not luminous.When unglazed, the resistance value of photo resistance is very big, and after dividing potential drop was carried out in fixed resistance and photo resistance, its partial pressure value was higher than the voltage stabilizing value of the mu balanced circuit in the reference circuit, and be connected the LED conducting between 2 this moment, so LED is luminous.Fixed resistance in the photoinduction circuit plays the dividing potential drop effect on the one hand, plays metering function on the other hand, and the electric current that flows through LED is limited in the reasonable range, has both protected LED, has protected photo resistance again, defines power simultaneously.Make integrated circuit reliability height, low in energy consumption.Adopt a spot of resistance and diode in the circuit, light emitting source spare adopts LED, therefore cost is reduced greatly.
The invention will be further described below in conjunction with the embodiment accompanying drawing:
Description of drawings:
Fig. 1 is an embodiment of the invention circuit diagram 1;
Fig. 2 is an embodiment of the invention circuit diagram 2;
Fig. 3 is an embodiment of the invention circuit diagram 3;
Fig. 4 is an embodiment of the invention circuit diagram 4;
Fig. 5 is an embodiment of the invention appearance structure schematic diagram 1;
Fig. 6 is an embodiment of the invention appearance structure schematic diagram 2.
Among the figure, 1, ac-dc converter circuit; 2, reference circuit; 3, LED; 4, photoinduction circuit; 301, photo resistance; 302, lamp socket; 303, control circuit body; 304, light-absorbing coating; 305, sheen layer; 306, printing opacity protection head; 307, LED illuminator; 308, fixed head; 309, lead-in wire.
The specific embodiment:
As shown in Figure 1, constitute full-wave rectification ac-dc converter circuit 1 by D1, D2, four diodes of D3, D4, the 220V alternating current obtains direct current voltage output by ac-dc converter circuit 1, be connected to reference circuit 2 and photoinduction circuit 4 at dc output end, reference circuit 2 is to be electrically connected in series by voltage-stabiliser tube DW and current-limiting resistance R1 to constitute; The anode of another termination ac-dc converter circuit 1 of R1, the negative terminal of another termination ac-dc converter circuit 1 of voltage-stabiliser tube DW; The voltage stabilizing value of its tie point output voltage-stabiliser tube DW.Photoinduction circuit 4 comprises current-limiting resistance R2 and photo resistance RT (301) formation that is connected in series at least, the DC voltage output plus terminal of another termination ac-dc converter circuit 1 of current-limiting resistance R2, the DC voltage output negative terminal of another termination ac-dc converter circuit 1 of photo resistance RT, during daytime, the value of photo resistance RT is less, reference voltage is higher than the voltage of photo resistance RT, makes the LED3 that is connected between datum mark and the photo resistance RT add negative voltage, and LED3 is in not luminance.When entering evening, the value of photo resistance RT increases, and reference voltage is lower than the voltage of photo resistance RT, makes the LED3 that is connected between datum mark and the photo resistance RT add forward voltage, and LED3 is in luminance.LED3 is owing to be current device, only depends on current-limiting resistance R2 by its electric current under the constant substantially situation of supply voltage.
In Fig. 1, because current-limiting resistance R2 can not be too big, make by the electric current of LED3 very for a short time too greatly, the luminous intensity of LED3 is affected; And that too little selection to photo resistance RT requires is very high, otherwise bad a little when light, LED3 will be luminous, is unfavorable for saving electric energy.
Increased resistance R 3 in the embodiment of Fig. 2, resistance R 3 use of connecting with photo resistance RT can reduce the too power consumption of small loss of photo resistance on daytime RT, protects photo resistance RT simultaneously for this reason, and the pressure drop that adds is thereon reduced.
A kind of rational circuit is the circuit that Fig. 3 provides, and it is perfect to Fig. 2 circuit.On photo resistance RT and resistance R 3 and connect a resistance R 4, the resistance of R4 can be chosen in tens K Europe to K up to a hundred Europe, and reference voltage is chosen between 110 to 180 volts, and current-limiting resistance R2 is chosen between the 10-30K.Photo resistance RT only reaches K up to a hundred Europe like this, and LED3 is last the forward voltage drop conducting could to occur.During just near evening, LED3 is last the forward voltage drop conducting could to occur.Make electric current less than 1ma owing to be subjected to the restriction of R2, R3 daytime.
In the explanation of Fig. 1, Fig. 2, Fig. 3, the LED3 that is connected between datum mark and the photo resistance RT has only one, and in fact the quantity of LED3 can reach up to a hundred, and total power is constant, as the electric current that flows through LED3 is 5ma, and LED3 selects 50, and total power consumption also has only 1w.It can reduce power consumption, does not reduce illumination intensity.
Fig. 4 is the enforcement circuit of many LED3 of serial connection between datum mark and photo resistance RT, and other circuit form is not done any adjustment, but need be according to the reference voltage value of how much adjusting of LED3.
Monnolithic case structure of the present invention as shown in Figure 5, lamp socket 302 can be the hook or screw-type, identical with existing mouth hanging with screw thread mouth 220 lamp holders.Printing opacity protection 306 can be hollow or real core, in printing opacity protection 306 control circuit body 303 (as Fig. 1 or Fig. 2 or Fig. 3) and LED illuminator 307 is arranged; Its packed protecting, better in order to make illumination effect, in printing opacity protection 306, sheen layer 305 is arranged, increase luminous soft property.In order not influence photo resistance light 301 when LED is luminous, design has light-absorbing coating 304 between LED illuminator 307 and photo resistance 301.
As another monnolithic case structure of the present invention as shown in Figure 6, in order to overcome existing mini light night inconvenient problem is installed as what in background technology of the present invention, mention, make lamp socket 302 and lamp holder separately, control circuit body 303 among Fig. 1 or Fig. 2 or Fig. 3 is encapsulated in lamp socket 302, and photo resistance 301 is exposed at outside the lamp socket 302.Printing opacity protection 306 and LED illuminator 307 are fixed on the fixed head 308, are electrically connected by lead-in wire 309 between them.
Claims (9)
1, self-starting mini light night, it is made up of ac-dc converter circuit, automatic open circuit and lamp holder, it is characterized in that: open circuit is to comprise the accurate circuit of a roadbed and another road photoinduction circuit that is attempted by the ac-dc converter circuit dc output end automatically, photoinduction circuit comprises at least and is electrically connected in series fixed resistance, photo resistance that its electric connection point is connected in series LED with the reference circuit datum mark.
2, self-starting mini light night according to claim 1 is characterized in that: the positive pole of the termination ac-dc converter circuit dc output end wherein of the fixed resistance in the described photoinduction circuit; Negative terminal one side of another termination ac-dc converter circuit dc output end of the photo resistance in the photoinduction circuit.
3, self-starting mini light night according to claim 1 is characterized in that: the fixed resistance of the described photoinduction circuit threshold values resistance that is electrically connected with in parallel with the negative terminal of ac-dc converter circuit dc output end.
4, self-starting mini light night according to claim 1 is characterized in that: be serially connected with current-limiting resistance between the negative terminal of described photo resistance and ac-dc converter circuit dc output end.
5, self-starting mini light night according to claim 1 is characterized in that: described reference circuit is to be electrically connected in series to constitute the negative pole of another termination ac-dc converter circuit dc output end of mu balanced circuit by mu balanced circuit and current-limiting resistance; The positive pole of another termination ac-dc converter circuit dc output end of current-limiting resistance.
6, self-starting mini light night according to claim 1 is characterized in that: described reference circuit is a voltage-stabiliser tube.
7, self-starting mini light night according to claim 1 is characterized in that: is connected by electric wire between the lamp holder that described automatic open circuit and LED constitute, described automatic open circuit is fixed in the pedestal of lamp holder of LED formation.
8, self-starting mini light night according to claim 7 is characterized in that: the described lamp holder that is made of LED, LED wherein are chosen between 1-180.
9, self-starting mini light night according to claim 1, it is characterized in that: on photo resistance RT and resistance R 3 and connect a resistance R 4, the resistance of R4 can be chosen in tens K Europe to K up to a hundred Europe, and reference voltage is chosen between 110 to 180 volts, and current-limiting resistance R2 is chosen between the 10-30K.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2004100732542A CN1769771A (en) | 2004-11-06 | 2004-11-06 | Self-starting mini night light |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2004100732542A CN1769771A (en) | 2004-11-06 | 2004-11-06 | Self-starting mini night light |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1769771A true CN1769771A (en) | 2006-05-10 |
Family
ID=36751229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2004100732542A Pending CN1769771A (en) | 2004-11-06 | 2004-11-06 | Self-starting mini night light |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1769771A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104482440A (en) * | 2014-12-17 | 2015-04-01 | 常熟史美特节能照明技术有限公司 | Brightness-adjustable bulb |
-
2004
- 2004-11-06 CN CNA2004100732542A patent/CN1769771A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104482440A (en) * | 2014-12-17 | 2015-04-01 | 常熟史美特节能照明技术有限公司 | Brightness-adjustable bulb |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207124784U (en) | A kind of circuit and LED straight lamps for installing detecting module | |
| CN201203010Y (en) | LED lamp capable of preventing broken circuit and lamp string | |
| CN104540287B (en) | LED dimming driving circuits | |
| CN2679890Y (en) | Mains coupler having night vision function | |
| CN106937451B (en) | The LED drive circuit of compatible silicon controlled light modulator | |
| CN2896782Y (en) | Luminating device | |
| CN2738104Y (en) | Automatic turning on LED type small night lamp | |
| CN2738105Y (en) | Automatic turning on type small night lamp | |
| CN1769771A (en) | Self-starting mini night light | |
| CN1605793A (en) | LED self-starting mini light night | |
| CN102927519A (en) | Automatic sensitization controlled solar LED lamp | |
| CN2828557Y (en) | High-efficient solar street light | |
| CN205648101U (en) | Intelligent control system of LED streetlight | |
| CN2657203Y (en) | Luminous diode packaging device with rectification circuit | |
| CN2741314Y (en) | Brightness stablized mineral light | |
| CN2775469Y (en) | Luminous diode lamp bulb | |
| CN210202135U (en) | Active consumption circuit with auxiliary winding control power supply | |
| CN208331814U (en) | A kind of light emitting diode illuminating apparatus and light emitting diode | |
| CN213186625U (en) | Dimming human body induction control circuit and LED bulb lamp | |
| CN202340335U (en) | Light-control electronic switch | |
| CN201081138Y (en) | Solar energy LED lawn lamp | |
| CN215420862U (en) | LED lamp strip with long service life | |
| CN211557575U (en) | High-power-factor low-harmonic drive circuit and high-power LED bulb lamp | |
| CN2267648Y (en) | Multi-purpose mosquito-killing lamp | |
| CN109246897A (en) | A kind of solar LED street lamp controller |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |