CN2224485Y - Automatic on-off energy-saving switch - Google Patents

Abstract

The utility model relates to an automatic inductive switch, composed of a switch case, a binding post and a circuit board. The utility model is characterized in that the circuit board is provided with a power supply rectification filtering working circuit, an optical control circuit, a micro-wave oscillation circuit, an oscillation signal amplifying circuit, a high gain amplifying circuit, a comparison amplifying circuit, a delay control circuit and a load control circuit. The utility model is used for lighting switches, integrating control methods of micro-wave, optical control, delay, etc. into one body, achieving that the lamp is switched on when a person arrives and the lamp is switched off when a person leaves and having the advantages of performance of guard against theft when the switch is not in use during daytime, etc.

Description

The automatic open close power down switch

The utility model is about a kind of switch of automatic induction.

Existing inductive switch was once reported on newspaper has the people to adopt the infrared induction principle to be made, but there are defectives such as induction dead angle and distance of reaction weak point in this infrared induction, in addition in order to economize on electricity, the somebody has designed electronic delay energy-conservation () switch, this class patent documentation report is very many, but there is insufficiency in they, there are not deficiencies such as automatic open close, for example patent documentation CN2044115U discloses a kind of light-operated time-delay lighting energy saving switch in addition, is characterized in being provided with in housing by light-operated indication accumulator, the operating circuit that RC discharge time lagged type alternation non-contact switch circuit and open type push-button switch are formed.The main weak point of light-operated time-delay illuminating energy-saving switch of said structure characteristics is not have an automatic switch characteristic, and other illuminates time control seemingly loaded down with trivial details suspicion, particularly need have under the long period lighting requirement situation.

The utility model purpose is will overcome the deficiency that above-mentioned prior art exists and a kind of electromagnetic wave induction automatic open close power down switch is provided, and control modes such as electromagnetic wave, light-operated, time-delay are integrated in one.Be characterized in that wiring board is provided with power supply rectification filter operating circuit, light-operated circuit, micro-wave resonator circuit, oscillator signal amplifier and high-gain amplifying circuit thereof, comparison amplifying circuit, delay control circuit, load control circuit.Light-operated circuit comprises photo resistance RS, comparison amplifier N ₁And support circuit and place comparison amplifier N ₁Output crystal amplifier B.Micro-wave resonator circuit comprises crystal amplifier B, resistance R, inductance L, capacitor C and is fixed on mast on the switch enclosure.Switch enclosure is provided with at photo resistance RS lay-down location and is subjected to unthreaded hole (8), and the light-operated circuit signal is in series with resistance R and voltage-stabiliser tube D and capacitor C through crystal amplifier B output at its output ₄, C ₅, voltage-stabiliser tube D and capacitor C ₄, C ₅Then place collection, the emitter-base bandgap grading two ends of microwave oscillation signal amplifying circuit transistor B, power supply rectification filter operating circuit and micro-wave resonator circuit are isolated.Relatively amplifying circuit is by comparator N ₃And the support circuit composition, the microwave oscillation signal of telecommunication after amplifying is input to comparator N ₃In-phase input end.Delay control circuit and load control circuit are by monostable flipflop N ₂And capacitor C ₁₆Diode D, transistor B and the contactless reverse-blocking tetrode thyristor that is connected on the load line are formed.Diode D is connected on the base stage of monostable flipflop output and transistor B, and silicon controlled trigger end and transistor B amplifying stage link.Capacitor C in the RC delay control circuit ₁₆Be connected between monostable flipflop trigger end and the working power positive pole, the monostable flipflop trigger end is by diode D and comparator N ₃Output link to each other.

When the utility model of said structure and electric circuit characteristic is used for lighting switch, control modes such as microwave, light-operated, time-delay are integrated in one, it is promptly bright to lamp to reach the people, the people promptly puts out from lamp, the effect of not working daytime etc. promptly has energy-conservation effect, can also play antitheft effect, anti-theft effects such as for example additional alarm and sound circuit are better, easy to use.

In the utility model circuit structure is provided with, do not get rid of other and can think as can be known amplifying circuit and assembled scheme thereof, for example microwave oscillation comprises that feedback signal amplifying circuit and high-gain amplifying circuit can be meant the amplifying circuit of a kind of integrated amplifier or a certain formation, if when being divided into elementary amplifying circuit and two circuit of high-gain amplifying circuit and synthesizing, for example the embodiment that will provide below us is such, for energy-conservation or others reason, the amplifying circuit working power only can also be interrelated and is separated with the power supply rectification filter operating circuit with light-operated circuit output.Monostable flipflop N ₂, in answering, more solito is provided with the automatic rollover characteristics of time-delay, and also be that the RC delay circuit has been included in N ₂In, but in order to narrate convenient and to adopt which kind of integrated or circuit composition N ₂Concrete respectively situation, the utility model spy exemplifies explanation separately with the RC delay control circuit again, at this, also with N ₂Do not describe and treat as there being delay time automatic rollover characteristics of RC.

Further illustrate the utility model below in conjunction with description of drawings, provide embodiment simultaneously.

Fig. 1 is two kinds of square views of the utility model embodiment switch box structure;

Fig. 2 is the utility model embodiment electrical principle block diagram;

Fig. 3 is the utility model electrical circuit diagram.

Wherein, 1: mast also is the L1 among Fig. 3,2: and the fixing circuit board screw, 3: fixing threaded hole, 4: switch enclosure, 5: wiring board, 6: wiring is leant on, and 7: indicator lamp hole, 8: be subjected to unthreaded hole.

As shown in the figure, no longer describe in detail about the switch box structure content, the utility model operation principle has some idea of by the description to present embodiment, transistor B among Fig. 3 ₂, antenna L ₁, inductance L ₂Capacitor C ₉Form microwave section self-maintained circuit Deng element, frequency of oscillation is typically chosen in 700MHZ to the 1000MHZ scope, by antenna L ₁Change the space of corresponding electromagnetic wave around being transmitted into into, its swept area can be selected, and transmitted wave is also non-directional, is provided with isolation ionization in the middle of the amplifying circuit that links with micro-wave resonator circuit is general, and among the figure, this isolates ionization for being electrochemical capacitor C ₇When the people was movable in the microwave radiation area, according to electromagnetic Doppler effect, the reflected wave of human body will be by antenna L ₁Receive, make B ₂Frequency of oscillation and amplitude all will change, by capacitor C ₇Detect sort signal and be added to crystal amplifier B ₁Base stage carry out signal and amplify B in this example ₁Pipe is selected the amplifier of smaller power for use, and its output may be not enough to trigger the controllable silicon conducting; So also adopt the high-gain amplifying circuit that signal is further amplified, this gain amplifying circuit is by operational amplifier N ₄And support circuit is formed.Signal is through transistor B ₁Pass through resistance R after the amplification ₂And capacitor C ₁₄Be input to N again ₄In-phase input end, through N ₄Again signal is passed through resistance R after the processing ₂₂Enter N ₃It is N that comparator one is relatively held ₃In-phase input end and resistance R ₂₃And resistance R ₂₄Voltage division signal compare, during static pressure, when promptly oscillator signal does not change, N ₄Output potential is through resistance R ₂₂Be added to N ₃The current potential of in-phase input end is higher than N ₃The current potential of inverting input, N ₃Be output as high level, connect monostable flipflop N simultaneously ₂The diode D of inverting input ₈, D ₉End, make N ₂The current potential of inverting input is higher than N ₂The current potential of in-phase input end, N ₂Be output as low level, the diode D in the load control circuit ₁₁And transistor B ₅End, the not conducting of controllable silicon VS triggerless electric current, the electric light on the load line does not work yet.When microwave signal changes, N ₄The variation signal of telecommunication of output is through resistance R ₂₂Be added to N ₃The current potential of in-phase input end is lower than N ₃During the current potential of inverting input, N ₃Output transfers low level to by high level immediately, simultaneously, and diode D ₈, D ₉Conducting makes N ₂The current potential of inverting input transfers to and is lower than N ₂The current potential of in-phase input end, at this moment N ₂Be output as high level, diode D ₁₁Conducting is through transistor B ₅Amplify, trigger controllable silicon VS conducting, illuminating lamp is lighted.The resistance R of delay circuit control ₂₆, capacitor C ₁₆Be connected on monostable flipflop N ₂Trigger end is the N in the present embodiment ₂Between inverting input and the working power positive pole, work as N ₂When in a single day inverting input is low level, power supply is at once to capacitor C ₁₆Though charging is N ₃When output becomes high level, diode D ₈, D ₉End, but because capacitor C ₁₆Both end voltage can not be suddenlyd change, and through one section time-delay, just makes N ₂Inverting input is higher than N ₂The current potential of in-phase input end, N ₂Output becomes low level, turn-offs illuminating lamp, capacitor C ₁₆In fact the discharge delay time is exactly the bright time-delay of lamp, and certainly, when the signal of telecommunication that constantly changes triggered controllable silicon again, the bright time-delay of lamp was not only with capacitor C ₁₆Delay time calculated.N in the utility model is implemented ₂～N ₄All adopt integrated operational amplifier to comprise N in the light-operated circuit ₁Also be, by photo resistance RS and comparison amplifier N ₁And support circuit and place N ₁The crystal amplifier B of output ₃, B ₄The light-operated circuit setting of forming can be avoided the illumination on daytime, and energy-conservation effect is more arranged, and power work circuit and micro-wave resonator circuit is isolated, and by light-operated circuit output, by being connected on transistor B ₄Resistance R on the output ₃And voltage-stabiliser tube D ₇And capacitor C ₄, C ₅Supply with its working power behind the filtering voltage regulation, the working power with micro-wave resonator circuit and oscillator signal amplifying circuit in this example places under the light-operated circuit control.During work, under the unglazed photograph, N1 homophase input offset voltage raises, N during work between RS is knowing ₁Be output as high level, and through crystal B ₃, B ₄With voltage-stabiliser tube D ₇And after the filter capacitor C5 processing, form stabilized voltage power supply for its use, when RS has under the light conditions N by day at the oscillating circuit two ends ₁The bias voltage of in-phase input end is very low, and at this moment N1 is output as low level, transistor B ₃, B ₄End, make whole microwave section non-transformer, whole switch quits work.

Claims (2)

1, a kind of automatic open close power down switch, form by switch enclosure (4), binding post (6), wiring board (5), it is characterized in that wiring board (5) is provided with power supply rectification filter operating circuit, light-operated circuit, micro-wave resonator circuit, oscillator signal amplifying circuit and high-gain amplifying circuit thereof, comparison amplifying circuit, delay control circuit, load control circuit; Light-operated circuit comprises photo resistance RS, comparison amplifier N ₁And support circuit and place comparison amplifier N ₁The crystal amplifier B of output ₃, B ₄Micro-wave resonator circuit comprises crystal amplifier B ₂, resistance R ₈, R ₉And R ₁₀, inductance L ₂, capacitor C ₉And be fixed on mast (1) on the switch enclosure (4); Switch enclosure (4) is provided with at photo resistance RS lay-down location and is subjected to unthreaded hole, and the light-operated circuit signal is through B ₄Output is in series with resistance R at its output ₃And voltage-stabiliser tube D ₇And capacitor C ₄, C ₅, voltage-stabiliser tube D ₇And capacitor C ₄, C ₅Then place the transistor B of microwave oscillation amplifying circuit ₁Collection, penetrate the plate two ends, power supply rectification filter operating circuit and micro-wave resonator circuit are isolated; Relatively amplifying circuit is by comparator N ₃And the support circuit composition, microwave oscillation signal is input to comparator N after amplifying ₃One relatively the end; Delay control circuit and load control circuit are by monostable flipflop N ₂, capacitor C ₁₆, diode D ₉, D ₁₁, transistor B ₅And the contactless reverse-blocking tetrode thyristor VS that is connected in the load forms; The capacitor C 16 of RC delay control circuit is connected monostable flipflop N ₂Trigger end and the working power positive pole between, N ₂Trigger end by diode D ₈, D ₉With comparator N ₃Output link to each other.

2,, it is characterized in that the microwave oscillation signal amplifying circuit is by crystal amplifier B according to the described automatic open close power down switch of claim 1 ₂, B ₁And the support circuit composition, the high-gain amplifying circuit is by operational amplifier N ₄And the planning standard circuit constitutes; The micro-wave resonator circuit signal output part passes through capacitor C ₇With crystal B ₁Base stage is connected; The output that oscillator signal amplifies passes through resistance R ₂And capacitor C ₁₄With amplifier N ₄In-phase input end be connected.

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