CN201904953U

CN201904953U - Light emitting diode (LED) illumination state time delay switch

Info

Publication number: CN201904953U
Application number: CN2010206625757U
Authority: CN
Inventors: 赵平; 冀倩倩; 成森
Original assignee: Northwestern Polytechnical University
Current assignee: Northwestern Polytechnical University
Priority date: 2010-12-14
Filing date: 2010-12-14
Publication date: 2011-07-20
Anticipated expiration: 2020-12-14

Abstract

The utility model discloses a light emitting diode (LED) illumination state time delay switch, which comprises a mechanical switch, an electronic flicker switch, a time delay control circuit, a twinkle control module and a sound and light control circuit, wherein the time delay control circuit, the twinkle control module and the sound and light control circuit are connected in series, are then respectively connected in parallel with the mechanical switch and an electronic switch and are next connected in series with an LED illumination array to be connected with both ends of a power supply, and the electronic flicker switch is controlled by the sound and light control module. The LED illumination state time delay switch has the advantages that people can turn on and turn off an LED illumination lamp in the flicker illumination state without turning on or turning off the illumination lamp in darkness, the structure is simple, and in addition, the energy consumption is low.

Description

LED illumination condition delay switch

Technical field

The present invention relates to a kind of delay control switch device, the LED lighting switch that can be fit to various places is used.

Background technology

At present, the LED of the low-carbon (LC) illumination application that has been widely current, general LED lighting device is to be formed by connecting by mains switch, power supply and LED lamp array.In order to allow the user open hand switch under illumination condition or to leave, described mains switch adopts the state delay switch usually.Existing state delay switch is when incandescent lighting is controlled, and the state of closing illumination is to adopt control circuit realization half intensity state representation switch to close, but bulb still provides time-delay half intensity lighting hours to allow the user leave under visible state.Whether but the half intensity state may be differentiated to be come out the insensitive people of eyes light sensation, be confused about and turn off the light.

Summary of the invention

In order to overcome existing illumination condition delay control switch device deficiency, the invention provides a kind of flicker illumination condition delay circuit, this circuit can not only adapt to the unstable AC power of various voltage ranges and frequency, the DC power supply of various voltage ranges can also be directly inserted, and various electricity-saving lamps and LED lamp can be applied to easily.

The technical solution adopted for the present invention to solve the technical problems is: comprise mechanical switch, electron flare switch, delay control circuit, glittering control module and sound light control circuit, delay control circuit, glittering control module and after sound light control circuit is connected, respectively parallel with mechanical switch and electronic switch, be connected both ends of power again with after the LED illumination array is connected, the electron flare switch is controlled by the acousto-optic control module.

Described delay control circuit is connected with rectification circuit.

The invention has the beneficial effects as follows: can allow the end user under the flicker illumination condition, open and close the LED illuminating lamp and the key lamp of needn't feeling about in the dark.Before the manual unlocking switch, the acousto-optic electrical induction device can sense the people near the time open LED flicker lighting switch, the user can open mechanical switch and enter the normal illumination state under the flicker illumination condition; After hand switch is closed, still keep LED flicker illumination a period of time, the flicker illumination had both reflected turn-off, made things convenient for the user to leave current place again under illumination condition.Under any mains lighting supply and illuminating lamp condition, the available use easily and unaffected, circuit only adopts conventional element, and is simple in structure and energy consumption is low.

Description of drawings

Fig. 1 is a circuit structure block diagram of the present invention.

Fig. 2 is circuit theory diagrams.

Fig. 3 is the submodule of circuit theory diagrams.

Among Fig. 1,1. mechanical switch, 2. electronic switch, 3. rectification circuit, 4. time-delay control, 5. glittering control, 6. acousto-optic control, 7.LED illumination array.

Among Fig. 2, D1～D4, D5-diode, D6-triode, IC-1～IC-4-NAND gate, Q1-triode 9014, Q2-triode 8550, Q3-voltage-stabiliser tube, Q4-bidirectional triode thyristor, R1～R7-resistance, Rg-photo resistance, C1～C3-electric capacity, MIC-microphone.

Among Fig. 3, time-delay control module 4, glittering control module 5, acoustic control molding piece 8, photocontrol module 9.

Embodiment

The present invention includes the parallel control structure of the electron flare state control switch (flicker frequency can be adjusted according to user's needs) of mechanical switch and standard, mechanical switch is controlled opening and closing by the people, and the electron flare switch is by sensor circuit control reflection transition lighting state.At mains switch two ends parallel manipulator switch and electron flare state control switch, Electronic Control status switch serial connection delay circuit and acousto-optic electric induction control circuit.The Electronic Control status switch is subjected to delay circuit control conducting and ends.Delay circuit is controlled by the off-state of control of acousto-optic electric induction circuit or mechanical switch.Acousto-optic electric induction circuit inductance starts delay circuit work to there being the people approaching, triggers the Electronic Control status switch and enters the flicker operating state, and the standard flicker illumination of sense state is provided for personnel.With the mechanical switch closure, lighting circuit enters normal operating conditions when manually, and blink states finishes.When leaving the place and close mechanical lighting switch, delay circuit is closed the voltage and current that mechanical switch produces and starts, and enters time-delay flicker illumination condition, and the relevant personnel are left away at the blink states lighting environment.

In Fig. 1, time-delay control 4, glittering control module 5 and after acousto-optic control 6 is connected with mechanical switch 1 and electronic switch 2 and connect, are connected with LED illumination array 7 again, and the base stage of electronic switch links to each other with acousto-optic control module 6.

In embodiment illustrated in fig. 2, to open when promptly being in off position when mechanical switch, the electronic switch bidirectional triode thyristor is in treats operating state, when illumination reaches certain intensity, the resistance of photo resistance Rg reduces, and after the R4 dividing potential drop, the pin 1 of NAND gate IC-1 is in low level, no matter have or not the voice signal input, the pin 3 output results of NAND gate IC-1 are high level, through counter-rotating several times, the 11 pin output low levels of last IC-4, bidirectional triode thyristor Q4 forward blocking, the LED lamp does not work; Along with weakening of intensity of illumination, the resistance of photo resistance Rg constantly increases, the current potential of the pin 1 of not gate IC-1 also constantly increases, after Rg and R4 dividing potential drop reach certain high position, the pin 1 of NAND gate IC-1 transfers high level to,, promptly satisfied the condition of opening the door, whether IC-1 pin 3 reverses depends on whether IC-1 pin 2 current potentials reach logic high, and acoustic control this moment begins to work.

Move towards the lamp source when the people draws near, when sound was very faint, triode D5 was saturated, and IC-1 pin 2 is a low level, and through counter-rotating several times, IC-4 pin 11 also is a low level, bidirectional triode thyristor Q4 forward blocking, and the LED lamp does not work; When sound is increased to certain intensity, voice signal is by microphone MIC output, be coupled to the D5 base stage through capacitor C 2, IC-1 pin 2 is in high level, because 1 pin satisfied the condition of opening the door, so the output pin 3 of IC-1 be low level, through once reversing, 4 pin are high level, enter the glittering control section of time-delay through D6.

When 4 pin high level, to charge to C1 by big resistance R 3 through D6, this moment, Q19014 ended, and Q28550 ends, and this RC circuit output does not reach the logic high of bidirectional triode thyristor base stage, not conducting of Q4, the LED lamp does not work; Voltage on charging capacitor C1 constantly increases, when rising to the IC logic high, the Q19014 conducting, the Q28550 conducting, it is the input pin 8 of IC-3, pin 9 is a high level, output pin pin 10 is a low level, and 11 pin are high level, the Q4 conducting, the LED lamp is bright, at this moment, C1 is lifted to the voltage of LED, formation LED--＞C1--＞9014--＞charge down, just going up negative then down, 9014 slowly end, treat 8550 slowly by the time, RC circuit output does not reach the logic high of bidirectional triode thyristor base stage, not conducting of Q4, the LED lamp does not work, and electric capacity by just--＞LED just--＞9014--＞LED is negative under the C1, forms discharge cycles fully, begin again after waiting to have discharged C1 to be charged by R, form the glittering of LED lamp thus, glittering time-delay a period of time is up to the manual closed mechanical switch of people, the LED lamp is bright, the electronic switch short circuit is not worked, and delay circuit RC begins charging, when the people will leave, mechanical switch is opened, the LED lamp extinguishes, and electronic switch is started working, begin again the to discharge self-loopa of charging of RC circuit, Q4 conducting closure discontinuously, the time-delay of LED lamp is glittering, finishes until the RC circuit discharging, and lamp extinguishes.

Claims

1. LED illumination condition delay switch, comprise mechanical switch, electron flare switch, delay control circuit, glittering control module and sound light control circuit, it is characterized in that: delay control circuit, glittering control module and after sound light control circuit is connected, respectively parallel with mechanical switch and electronic switch, be connected both ends of power again with after the LED illumination array is connected, the electron flare switch is controlled by the acousto-optic control module.

2. LED illumination condition delay switch according to claim 1, it is characterized in that: described delay control circuit is connected with rectification circuit.