CN2301812Y - Natural light controlled electronic switch - Google Patents

Natural light controlled electronic switch Download PDF

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Publication number
CN2301812Y
CN2301812Y CN 97218565 CN97218565U CN2301812Y CN 2301812 Y CN2301812 Y CN 2301812Y CN 97218565 CN97218565 CN 97218565 CN 97218565 U CN97218565 U CN 97218565U CN 2301812 Y CN2301812 Y CN 2301812Y
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circuit
triode
resistance
light
electronic switch
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CN 97218565
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成爱林
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Cheng Ailin
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Abstract

The utility model relates to a light-operated electronic switch, including panel 7, back lid 9 and circuit board 8, characterized by that circuit board 8 connects gradually electric capacity step-down half-wave rectification power supply circuit 1, photosensitive diode 2CU andlight control point adjusting resistor RWA photoelectric conversion circuit 2 composed of series connection, a resistor R2And a capacitor C3A damping circuit 3 formed by a triode T1、T2Emitter output comparator circuit 4, triode T3、T4Emitter coupled bistable rectifier circuit 5, triode T5、T6Collector current triggering the BCR actuating circuit 6, load L1Is connected between the first anode of the bidirectional controllable silicon BCR and the N end of the power supply. It has the advantages of non-contact switch, simple structure, low cost, wide light control point regulating range, reliable action, etc.

Description

The electronic switch of natural daylight control
The utility model relates to electronic switching technology, is specially the light-controlled electronic switching technique, and international Patent classificating number intends being HO5B37/00 and H03K 17/00.
Illumination, it is bright that particularly public lighting Ying Ri puts out night, with saves energy, now generally uses labor management, very uneconomical.People attempt to change this state, utilize certain day to put out bright switching technique at night automatically, and are artificial to replace, and reach the economic purpose of economize on electricity.But it is as if not ideal.Problem mainly is Changes in weather (as dark clouds sleet), jamming light source, (thunderous, electric, veiling glare) and critical flicker.Reported a kind of " solar energy self-control road lamp switch " utilization " solar cell is powered to an electric-controlled switch " for No. 94202282 as Chinese patent, " sun has electric current to flow through when sufficient " is with the break-make of control switch.Obviously, the cloudy day rains, and cloudy have a mist, and normal weather phenomenon such as the snowfall of blowing all might make this switch produce misoperation, does not reach the purpose of asking; " stray light and non-stray light (natural daylight) " discerned in and for example a kind of " anti-interference light-operated power down switch " utilization of No. 90223697, Chinese patent report light-sensitive element and the guider or the light spacer of two above different directions or diverse location " three or ".This technology still adopts conventional light-operated switch, itself there is no improvement switch, just increased the identifier of stray light and non-stray light, but the light-sensitive element of this identifier-technologies is many, the installation site is very key again, whether " direction " and " position " of design has adapted to the sunlight of several irregular jamming light source and week day operation, doubtful.A kind of " simulating time-control switching unit the sunshine of intelligence " of No. 94235873 reports of Chinese patent for another example, the keying that utilizes " function of perpetual calendar is to realize simulating of counterglow " to come control switch.Though this technology has been kept away the complexity (as critical flicker etc.) of natural daylight control, can not be subjected to the influence of stray light, its versatility is bad.Because sunshine, situation very all can influence sunshine in complexity, longitude, latitude, Plain, mountain area etc., single software " simulates " and gets up very difficultly, use to adjust also non-easy thing, if various software more complicates the issue, it is unfavorable to promote; On the other hand this specification requirement computer arranged, simulate software, the general all no components and parts of light-operated switch such as UPS uninterrupted power supply, clock, keyboard, cost is high, the operative employee uses, the equal difficulty of maintenance, promotes the use of unfavorablely also to be difficult for.
The purpose of this utility model is at above-mentioned the deficiencies in the prior art, provides a kind of simple in structure, with low cost, strong interference immunity, and no critical flicker, light-operated some adjustable range is big, the electronic switch of the natural daylight control of contactless control.
The purpose of this utility model is realized by following technology: a kind of electronic switch of natural daylight control, comprise panel 7, bonnet 9 and wiring board 8, it is characterized in that the circuit connection on the wiring board 8 is followed successively by power circuit 1, photoelectric switching circuit 2, antihunt circuit 3, comparison circuit 4, shaping circuit 5 and executive circuit 6; Described power circuit 1 is a capacitance decompression halfwave rectifier power circuit 1; Photoelectric switching circuit 2 is regulated resistance R by photodiode 2CU and light-operated point wBe composed in series; Antihunt circuit is by resistance R 2And capacitor C 3Form resistance R 2One end links to each other with the negative pole of photodiode 2CU, and the other end inserts triode T in the comparison circuit 4 1Base stage, comparison circuit 4 is by triode T 1, T 2The multiple tube emitter output circuit of forming, triode T 2Emitter-base bandgap grading insert triode T in the shaping circuit 5 3Base stage; Shaping circuit 5 is by triode T 3, T 4The flip-flop circuit of forming 5, and by triode T 4Collector electrode insert diode D in the executive circuit 6 3Positive pole, executive circuit 6 be by triode T 5, T 6The multiple tube collector plate power supply of forming can be sent out the output circuit 6 of bidirectional triode thyristor BCR; Meet load L between the first anode of bidirectional triode thyristor BCR and the N of the power supply end, the second plate of bidirectional triode thyristor BCR connects the L end of power supply.
By technical solutions of the utility model as can be seen, it has only used the most frequently used electronic devices and components such as a spot of electric capacity, resistance, two, triode, obviously has the feature of (even only have some prior art scheme hundreds of times/) simple in structure, with low cost; Design simple antihunt circuit, utilized the delay of capacitor charge and discharge performance, can effectively realize the strong characteristics of anti-veiling glare interference; Designed emitter-base bandgap grading coupling bistable state shaping circuit, can accelerate the upset of state, thereby avoid critical flicker; Adjust light-operated some adjusting resistance R in the simple photoelectric switching circuit wResistance, can realize light-operated bigger adjustable range, to be suitable for the needs of different situations; Natural daylight is as the control light source, and photodiode 2CU can realize the contactless control of electronic switch as photo-electric conversion element.
Experiment shows that light-operated some adjustable range of the present utility model can be from very black to very bright, and adjusts easyly, is suitable for the requirement of different weather and season and different condition; Threshold variations flicker free phenomenon, the utility model switch and being failure to actuate under continuous 10 seconds strong illumination, be enough to avoid veiling glares such as car light, flash of light, thunder and lightning to disturb, being applicable to variously needs daytime and puts out bright public lighting occasion at night, locates as unattended automatic switch as street lamp, navigation light, neon light, advertising lamp, decorative lamp plant area, warehouse, square etc.
Below in conjunction with embodiment and accompanying drawing thereof in detail the utility model is described in detail:
Fig. 1 is that circuit of the present utility model is formed schematic diagram;
Fig. 2 is a line principle schematic diagram of the present utility model;
Fig. 3 is a surface structure schematic diagram of the present utility model;
That power circuit 1 of the present utility model adopts is capacitor step-down half-wave rectifying circuit 1 (referring to Fig. 1), and specific design is: capacitor C 1And resistance R 1After, a termination exchanges the N end of 220 volts of power supplys, and the negative terminal of another termination voltage-stabiliser tube 2CW, the anode of voltage-stabiliser tube 2CW then connect the L end of power supply; Connect the anode of diode D by the negative terminal of voltage-stabiliser tube 2CW, connect capacitor C again 2Anode after, the L in telegram in reply source end.Exchange 220 volts, through capacitor C 1Step-down, after the voltage stabilizing of voltage-stabiliser tube 2CW amplitude limit, output voltage is stored in capacitor C 2In, capacitor C 2Both end voltage be output DC source voltage, design parameter is a 7-15 volt.This direct voltage is used for each follow-up circuit, and has played the governor circuit buffer action as control voltage, in order to avoid element decreases part.
Photoelectric switching circuit 2 of the present utility model adopts photodiode 2CU and light-operated point to regulate resistance R wBe composed in series, simple and effective.Its operation principle is that the backward resistance of photodiode 2CU can change along with the power of natural daylight, and natural daylight is dark more, and its resistance is big more, and terminal voltage is also high more, again by regulating resistance R with light-operated point wNeed suitably to regulate obtain appropriate dividing potential drop according to objective reality, make the natural daylight optically-controlled signal correctly send into resistance R in the antihunt circuit 3 2On.The Standard resistance range that described light-operated point is regulated resistance is 100K Ω-20M Ω.
Antihunt circuit 3 is by resistance R 2And capacitor C 3Form.Resistance R 2One end links to each other with the negative pole of photodiode 2CU, the other end and capacitor C 3Positive pole and comparison circuit 4 in triode T 1Base stage link to each other capacitor C 3The N end of another termination power, triode T 1Base stage then obtains the optically-controlled signal that antihunt circuit 3 is sent here.Because resistance R 2, capacitor C 3Charging effect and capacitor C 3Through triode T 1, T 2The discharge process of emitter-base bandgap grading, it is mild that the dried sorrow signal of sending here is previously changed, i.e. damping action, thus can avoid veiling glare, thunder and lightning, the interference of non-natural daylights such as flash of light.Experiment shows that under the strong illumination of continuous 10 seconds non-natural daylights, the electronic switch of present embodiment also is failure to actuate.The persistence length that generally can not surpass (this time also can be adjusted) natural daylight in designed 10 seconds because of the stray light persistence length of aforementioned various non-natural daylights comparatively speaking is an endless, and its change procedure also is strengthen gradually (more and more brighter when being bright, darkness deepens in dark back), thereby this circuit design both can have been avoided the interference of non-natural daylight, the natural daylight optically-controlled signal is correctly imported, and both having made is under the situation about changing in the four seasons such as adverse weather such as wet weather or summers in winter.
Comparison circuit 4 of the present utility model is by triode T 1, T 2The multiple tube emitter output circuit of forming, triode T 1, T 2Collector electrode insert the L end of power supply, triode T 2Emitter-base bandgap grading comparison signal is sent into triode T in the shaping circuit 5 3Base stage, simultaneously through electric R 3Insert the N end of power supply.Its operation principle is: as the dark sub light-operated point of natural daylight, triode T 1Base potential be higher than triode T 2During the current potential of emitter-base bandgap grading (designing about 1 volt), the output signal of lighting luminaire is promptly sent in two triode conductings; Otherwise, when bright in light-operated point, triode T naturally 1Base potential be lower than triode T 2During the current potential of emitter-base bandgap grading (design also is about 1 volt), two triodes end, and also promptly send the output signal of turn-offing luminaire.Simultaneously, this designed emitter output circuit can increase input resistance greatly, strengthens resistance R in the antihunt circuit 3 of front 2And capacitor C 3Damping action, and make optical input circuit not influenced by it.(getting its electric current reduces), thus also help enlarging the adjustable range of light-operated point in the photoelectric switching circuit 2.
Shaping circuit 5 is by triode T 3, T 4The Schmidt circuit of forming 5.Resistance R 4Be coupling resistance, be connected on triode T 3, T 4Between emitter-base bandgap grading and the power supply N end; Triode T 3Collector electrode is through diode D 2Positive pole and resistance R 7Meet triode T 4Base stage; Triode T 3, T 4Collector electrode respectively through resistance R 5, R 6Insert the L end of power supply; The critical flicker phenomenon that this shaping circuit effect is to avoid the slow length because of natural daylight light and shade critical transitions process to produce, promptly when light naturally to or when secretly arriving a certain set point (light-operated point), this electronic switch can finish the action of cutting out or opening luminaire rapidly and not produce flicker.Embodiment is at triode T 3Collector electrode and triode T 4Designed diode D between the base stage in the coupling circuit 2Purpose also is to accelerate the upset of its state, improves the effect of shaping, guarantees the reliable and stable of work.Shaping circuit 5 operation principles are: as triode T 1, T 2During conducting, triode T 3Conducting, and triode T 4End; Otherwise, if T 1, T 2By the time, T then 3Also end, and T 4Conducting also is T 4All the time be in and T 1, T 2, T 3Logical end opposite stable state, set the working signal of required switch on and off power supply according to natural daylight bright-dark degree, and this signal is accurately sent into executive circuit 6 to realize it with exact expression.
Executive circuit 6 is by triode T 5, T 6The multiple tube collector current of forming triggers the output circuit 6 of bidirectional triode thyristor BCR.Meet load L between the first anode of bidirectional triode thyristor BCR and the power supply N end 1(being luminaire or lighting controller), second plate then connect the L end of power supply.Indicator light L as the power supply indication 2(light-emitting diode) series resistor R 10After be connected in parallel between two anodes of bidirectional triode thyristor BCR.Its operation principle is: as triode T 4When being in cut-off state, its collector potential raises, and makes triode T 5, T 6Fully conducting, the control utmost point of bidirectional triode thyristor BCR obtains the triggering signal conducting, thereby makes the negative L of cutting 1Work; Otherwise, triode T 4When being in conducting state, its collector potential descends, and makes triode T 5, T 6Fully end, bidirectional triode thyristor BCR loses triggering signal also to be ended, thereby makes load L 1Quit work.Signal triode T from shaping circuit 5 of executive circuit 6 inputs 4Collector electrode is introduced and is connected in series through diode D 3And R 8After send into triode T 5Base stage, its objective is and utilize its pressure drop, prevent at triode T 4Under the conducting situation, during low level output, may make triode T 5, T 6The phenomenon that conducting occurs.Triode T in the executive circuit 6 6Penetrate a grade crosstalk resistance R 9, the N that connects power supply holds, and its collector electrode and triode T 5Collector electrode insert the control utmost point of bidirectional triode thyristor BCR in the lump, be electric current output triggering mode.This design can make the output resistance in triggering source increase, and helps strengthening the buffer action of governor circuit, improves the useful life of switch electronic element.
In sum, the utility model entire circuit course of work can followingly be represented (e, b, c represent emitter-base bandgap grading, base stage, the collector electrode of triode Ti respectively, and i then shows the sequence number of triode): when natural light brightness weakens and is lower than light-operated of setting,
Figure Y9721856500071
, T 2Conducting → T 3Conducting → T 4By → T 5, T 6Conducting
→ BCR conducting → L 1Work.
Certainly brightness strengthens and when being higher than light-operated of setting, said process is opposite.
As can be seen, what the utility model was controlled electronic switch is natural daylight itself, and not by other conditions, thereby be not subjected to other condition influence and restriction yet, even therefore the natural daylight illumination on overcast and rainy daytime is also much larger than night,, configure light-operated point, can finish natural daylight control throughout the year.

Claims (3)

1. the electronic switch of natural daylight control, comprise panel (7), bonnet (9) and wiring board (8), it is characterized in that the circuit connection on the wiring board (8) is followed successively by power circuit (1), photoelectric switching circuit (2), antihunt circuit (3), comparison circuit (4), shaping circuit (5) and executive circuit (6); Described power circuit (1) is a capacitance decompression halfwave rectifier power circuit (1); Photoelectric switching circuit (2) is regulated resistance R by photodiode 2CU and light-operated point wBe composed in series; Antihunt circuit 3 is by resistance R 2And capacitor C 3Form resistance R 2One end links to each other with the negative pole of photodiode 2CU, and the other end inserts triode T in the comparison circuit (4) 1Base stage; Comparison circuit (4) is by triode T 1, T 2The multiple tube emitter output circuit of forming, triode T 2Emitter-base bandgap grading insert triode T in the shaping circuit (5) 3Base stage; Shaping circuit (5) is by triode T 3, T 4The Schmidt circuit of forming (5), and by triode T 4Collector plate insert diode D in the executive circuit (6) 3Positive pole, executive circuit (6) be by triode T 5, T 6The multiple tube collector supply of forming triggers the output circuit (6) of bidirectional triode thyristor BCR; Meet load L between the first anode of bidirectional triode thyristor BCR and the N of the power supply end 1, the second plate of bidirectional triode thyristor BCR then connects the L end of power supply.
2. the electronic switch of natural daylight control according to claim 1 is characterized in that the output voltage of described capacitance decompression halfwave rectifier power circuit (1) is direct current 7-15 volt.
3. according to the electronic switch of claim 1,2 described natural daylight controls, it is characterized in that described light-operated some adjusting resistance R wStandard resistance range be L00 Ω-20M Ω.
CN 97218565 1997-06-27 1997-06-27 Natural light controlled electronic switch Expired - Fee Related CN2301812Y (en)

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Application Number Priority Date Filing Date Title
CN 97218565 CN2301812Y (en) 1997-06-27 1997-06-27 Natural light controlled electronic switch

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Application Number Priority Date Filing Date Title
CN 97218565 CN2301812Y (en) 1997-06-27 1997-06-27 Natural light controlled electronic switch

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CN2301812Y true CN2301812Y (en) 1998-12-23

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CN 97218565 Expired - Fee Related CN2301812Y (en) 1997-06-27 1997-06-27 Natural light controlled electronic switch

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103249207A (en) * 2012-02-10 2013-08-14 成爱林 Double-light-control street lamp switch
CN116559521A (en) * 2023-05-10 2023-08-08 国网黑龙江省电力有限公司绥化供电公司 Chamber test device of portable high-voltage electroscope

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103249207A (en) * 2012-02-10 2013-08-14 成爱林 Double-light-control street lamp switch
CN103249207B (en) * 2012-02-10 2015-07-29 成爱林 Two light-dependent control switch
CN116559521A (en) * 2023-05-10 2023-08-08 国网黑龙江省电力有限公司绥化供电公司 Chamber test device of portable high-voltage electroscope
CN116559521B (en) * 2023-05-10 2024-03-29 国网黑龙江省电力有限公司绥化供电公司 Chamber test device of portable high-voltage electroscope

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C14 Grant of patent or utility model
GR01 Patent grant
C53 Correction of patent of invention or patent application
COR Change of bibliographic data

Free format text: CORRECT: PATENTEE ADDRESS; FROM: TIANJIN TEXTILE TECHNOLOGY COLLEGE TO: NO. 504, UNIT 1, BUILDING 16, FANGZHIGONGXUE YARD, TIANJIN CITY

CP03 Change of name, title or address

Address after: No. 1, unit 16, building 504, Tianjin Textile Engineering College

Patentee after: Cheng Ailin

Address before: Tianjin Textile Engineering Institute retired office

Patentee before: Cheng Ailin

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