CN2164152Y

CN2164152Y - Infrared energy-saving automatic switch

Info

Publication number: CN2164152Y
Application number: CN 93210341
Authority: CN
Inventors: 朱同
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-04-23
Filing date: 1993-04-23
Publication date: 1994-05-04
Anticipated expiration: 2003-04-23

Abstract

The utility model relates to an infrared energy-saving automatic switch. An infrared trigger circuit is adopted to enter an amplifying circuit via a receiving circuit; a time delay circuit is regulated as required to drive a load to work; the circuit can be also additionally provided with a light-controlled circuit to form a light-controlled infrared automatic energy-saving switch. The infrared energy-saving automatic switch has the advantages of simple structure, convenient maintenance, convenient installation, small volume, complete function, energy saving, high efficiency, and remarkable effect of energy saving. The utility model can be successfully used for various automatic switches controlled by infrared, such as an automatic water tap, an automatic door, an alarming device, a lamp, etc., especially infrared automatic energy-saving switches provided with light control. The utility model is especially suitable for the control of illumination lamps in public places and can reduce the cross infection in the public places.

Description

Infrared energy-saving automatic switch

The utility model relates to a kind of infrared ray automatic energy saving switch.

Infrared switch of the prior art all is to adopt resolution element to make, and volume is big, the cost height, and the circuit complexity brings storage how inconvenient for installation and popularization.

The purpose of this utility model is: design a kind of infrared ray automatic energy saving switch of manufacturing with integrated circuit.

The utility model adopts following circuit to realize above-mentioned purpose, adopts the infrared ray circuits for triggering, behind receiving circuit, enters amplifying circuit, regulating delay circuit as required, drives loaded work piece then; Also can on this circuit, add light-operated circuit, form light-operated infrared ray automatic energy saving switch.

This infrared ray automatic energy saving switch, simple in structure, be convenient to maintenance, easy for installation, volume is little, and function is complete, can success be used for various automatic switches by infrared ray control as: can be used for automatic faucet, automatically-controlled door, alarm, lamp etc., advantage with efficient energy-saving particularly with light-operated infrared ray automatic energy saving switch, is specially adapted to the illuminating lamp control of public place, energy-saving effect is remarkable, also can reduce the public place cross-infection.

Illustrate below in conjunction with example:

Fig. 1: be circuit block diagram

Fig. 2: be circuit diagram

Fig. 3: for light-operated circuit diagram

Fig. 4: be whole switch junctions composition

Fig. 5: Fig. 4 A-A cuts open

The bottom view of Fig. 6: Fig. 3

Be attempted by after bidirectional triode thyristor SCR and the load R series connection AC220V mutually with zero line 0 on, resistance-capacitance depressurization circuit one termination power, the rectification circuit D of another termination Golden Bridge ₁-D ₄, type is considered wave circuit C ₁And connect the output of Golden Bridge, R ₃The serial connection positive source, voltage-stabiliser tube W is at R ₃Afterwards and on the both positive and negative polarity of DC power supply, current-limiting resistance R ₂With infrared light emitting diode D ₆Be connected to power positive cathode after the series connection, form radiating circuit, R ₆, C ₅And D ₇The biasing circuit BG of composition inverting amplifier BG send PD with the signal of the emitter of NPN type pipe, and (PD selects similar 555 linear amplification integrated circuits for use), collector electrode meets the positive pole of DC power supply, integrating capacitor C ₄Be connected between PD and the negative pole, the PD output signal is passed through D ₅With diac RT, send into the control utmost point of SCR, time-delay cut-off circuit R ₄And C ₃Be connected to BT and D ₅Between point of interface and the negative pole, R ₄And C ₃Another input of PD is delivered in the centre number of winning the confidence, light-operated circuit part R ₇, D ₈, R ₈Connect the DC both ends of power after the series connection, from R ₇And D ₈Junction number of winning the confidence and delay capacitor C ₈Link to each other, and deliver to the control utmost point of high power switch integrated circuit (IC), IC is serially connected on the positive pole of DC power supply.

When switch not during receiving infrared-ray, R in the circuit ₆And C ₅Provide a positive voltage to the BG base stage, make BG saturated, emitter output positive voltage, PD can not overturn, when the people walks close to switch, D ₆The infrared light of emission reflects through human body, is D ₇Receive D ₇Provide a negative voltage to the BG base stage, BG is ended, emitter becomes negative voltage, and at this moment PD receives a negative signal and makes its upset, through C ₄Open inner institute lock-in circuit behind the integration, PD output output positive signal, through the reverse protection triode, trigger tube BT triggers bidirectional triode thyristor SCR, makes the SCR conducting, and load R obtains the loop and works, positive D ₅In the time of the output positive signal, through R ₄To C ₃Charging (is adjusted R ₄And C ₃Can reach required delay time), when this voltage reaches PD when the turn threshold, make PD upset output become negative signal, SCR is discharged, block the work loop of R, so go round and begin again, add light-operated circuit after, as daytime or the light-operated certain intensity that reaches, D ₈And R ₈Resistance＜R ₇Resistance, so provide a negative signal to IC, IC will not trigger, the infrared ray circuit can not be worked, when light dark or unglazed according to the time D ₈And R ₈Resistance〉R ₇Resistance, positive signal is through R ₇To C ₆After the charging, trigger IC and make its conducting, light-operated circuit work is finished, and infrared ray control circuit can be worked, as long as R ₇C ₆Delay time surpass R ₄C ₃Delay circuit, self just can not occur and disturb and misoperation.

(1) is convex lens on the switch, and in order to receive and the emission infrared light, convex lens (1) should be aimed at transmitting tube D respectively ₆With receiving tube D ₇, (2) are light-operated receiver hole, and (7) are binding post, and (4) are wiring board, and (5) are switch case, and (3) are panel, and (6) are snoot, play optically focused and jamproof effect.

Claims

1, a kind of infrared ray automatic energy saving switch is characterized in that: be equipped with two lens on the switch body, and link to each other with wiring board, also have binding post on it; Circuit is on the wiring board: infrared transmitter is connected to the both positive and negative polarity of power supply, and receiving circuit is connected to the base stage and the negative pole of inverting amplifier, and delay circuit is connected to the signal output part and the negative pole of amplifirer (PD), and signal is sent into (PD), and inverting amplifier is by (R ₆, C ₅, BG, R ₅) form, (PD) output end signal is by (D ₅, BT) control non-contact switch circuit (SCR), (SCR) and after the load series connection be connected to the AC power two ends.

2, infrared ray automatic energy saving switch according to claim 1, it is characterized in that: also light-operated hole can be arranged on this switch, and be connected to light-operated circuit, light-operated circuit is connected on before the infrared ray circuit, and is serially connected with dc power anode, the negative pole of another termination power.