CN2080282U

CN2080282U - Optical and sound controlled timed switch for low voltage electric apparatus

Info

Publication number: CN2080282U
Application number: CN 90218184
Authority: CN
Inventors: 张润峰
Original assignee: Individual
Current assignee: Individual
Priority date: 1990-08-16
Filing date: 1990-08-16
Publication date: 1991-07-03

Abstract

The utility model provides a new device, a low-voltage electrical apparatus which utilizes natural light to realize the optical control and the acoustic control of starting and time switch. The technical characteristics of the device are that the acoustical-electrical transducing circuit is additionally provided with an optical control locking. The monostable circuit is used for timing. The device is mainly used in low-voltage circuits, lighting circuits and optical control locking, and can be switched on lasting for a short time in the condition without illumination and be switched off automatically, thus, is suitable for the illumination in the passageways of tall, middle and low buildings as well as the warning switches in important government offices. The utility model has a high sensitivity in the range of 3-15m to various man-made sounds, such as stomping, shouting, clapping and talking, and the optical control locking of natural light has no faulty action. The switch has the advantages of obvious energy-saving effect, convenient and safe utilization, small volume, light weight, low power consumption, low cost and easy manufacture.

Description

Optical and sound controlled timed switch for low voltage electric apparatus

The utility model relates to the light-operated locking of a kind of low-voltage electrical apparatus, acoustic control starts, and has the switch of timing function.

Traditional low-voltage electrical apparatus control device generally adopts hand switch, makes low-voltage electrical apparatus and power connection or disconnection.Under the environment of dark, for example: the interior corridor lighting of building etc. then needs mould to seek switch, lamp line is opened electric light, closes difficulty after (or upstairs) downstairs, even can't close, and causes normal bright lamp.Because the storied building structure difference, the stranger is difficult to find lighting switch, and is very inconvenient, and particularly some a little normal phase of corridor intraoral illumination lamp does not close, and causes a large amount of energy wastes.

The purpose of this utility model, provide a kind of cheap, energy savings, without hand switch, do not use any controller, controlled at random, light-operated locking on daytime, light-operated unlatching at night.After the light-operated unlatching, connect high sensitivity acoustic control timing switch.For example: step, calling out, clapping one's hands all can reach the control purpose.

Structure of the present utility model is as described below: it triggers timing circuit (4), relay promotion circuit (5), light-operated circuit (6), normal open (or normal off) switch (7) and shell (8) by capacity voltage dropping circuit (1), regulator rectifier circuit (2), acoustic-electric switching amplifier (3), monostable and forms.The 220V AC power is through capacity voltage dropping circuit (1) step-down, after regulator rectifier circuit (2) voltage stabilizing direct voltage supplied with acoustic-electric switching amplifier (3) and light-operated circuit (6), and acoustic-electric switching amplifier (3) converts external voice signal to the signal of telecommunication and is input to monostable and triggers timing circuit (4), trigger timing circuit (4) by monostable again and convert pulse triggering signal to, be input to relay and promote circuit (5), make the relay J adhesive in it, impel the low-voltage electrical apparatus conducting; Then single-shot trigger circuit (4) is exported a rp pulse triggering signal again, is input to relay and promotes circuit (5), and the relay J in it is discharged, and low-voltage electrical apparatus is turn-offed.By light-operated circuit (6) acoustic-electric switching amplifier (3) is locked, make and be subjected to the light time (or not being subjected to the light time) at light-dependent control element, make acoustic-electric change-over circuit (3) can not export the acoustic-electric switching signal, thereby keep monostable to trigger the initial condition of timing circuit (4).Reach the purpose of light-operated locking.Simultaneously, because monostable triggers the self-recovery function of timing circuit (4), make light-operated circuit (6) equal the latch-up-free function to the light source (light) of this machine control, timing triggers timing circuit (4) decision by monostable fully.Can manually control by normal bright switch (7), make the normal phase energising of load, i.e. manual priority.

Above-mentioned capacity voltage dropping circuit (1) is by decompression capacitor C8 and discharge resistance R 11 and form, and R11 is with after C8 is in parallel, one termination 220V AC power, another termination regulator rectifier circuit (2).Regulator rectifier circuit comprises 4 diode D1～D4, voltage stabilizing didoe D, 2 capacitor C 6, C7 and resistance R 10, D1～D4 form bridge rectifier, C6, R10, C7 form ∏ shape filter circuit, bridge rectifier D1～D4, one input termination 220V AC power, its another input and above-mentioned capacity voltage dropping circuit (1) link, and promptly R11 in parallel and C8 one end as output links.Acoustic-electric switching amplifier (3) is by electret microphone MIC, triode BG1,3 resistance R 1～R3, and 2 capacitor C 1, C2, potentiometer W forms.MIC wherein, BG1, R1～R3, C1, W form no self excited amplifier, and the BG1 collector electrode connects W one end, and its convertible tip triggers timing circuit (4) by C2 order stable state.Monostable triggers timing circuit (4) and comprises 2 triode BG2, BG3, and 4 resistance R 4～R7 and C9, C3, C4 form, and wherein R6 and C4 are timing element, can select the numerical value of R6 and C4 according to concrete needs.The convertible tip of BG2 base stage potentiometer W in C2, D5 and acoustic-electric switching amplifier (3) links.Relay promotes circuit (5) by resistance R 9, and triode BG4 and relay J are formed, and J0, J1, J2 are respectively the intermediate contact of J, normally-closed contact and normally opened contact, and the collector electrode of BG4 connects the excitation winding of J.J2 connects load L1, L2 and the 220V AC power other end respectively.Light-operated circuit (6) is made up of light-sensitive element R9.The base stage of BG1 in dc power anode and the acoustic-electric switching amplifier (3) is received at the two ends of R8 respectively.Normal bright switch (7) is made up of K switch 1, and J0 and the J2 end that relay promotes J in the circuit (5) received at its two ends respectively.

The utility model principle can be illustrated in conjunction with Fig. 1, Fig. 2:

The 220V AC power provides DC power supply through capacity voltage dropping circuit (1) and regulator rectifier circuit (2) to the The whole control switching circuit.Receive microphone in the acoustic-electric switching amplifier (3) and adopt electret microphone MIC, it becomes voice signal into the signal of telecommunication, and coupling capacitor C 1 has the effect of stopping direct current and limit frequency width.The sensitivity of acoustic-electric switching amplifier (3) can be done very highly, and does not have self-excitation.So that step, tune such as call out, clap hands all can obtain an amount of trigger action.

R1 is and the build-out resistor of electret microphone MIC, adopts: 2.2～5.6 kilo-ohms; Composition amplifiers such as transistor BG1 have adopted voltage negative feedback circuit, with constant gain, prevent self-excitation.The sensitivity of the adjustable acoustic control of potentiometer W and the reliability of light-operated locking.Promptly adjust triggering signal magnitude of voltage, to realize the purpose of command range to BG2.Trigger in timing circuit (4) R6, C4 composition timing circuit in monostable this moment, and its seclected time can be according to specific requirement, as: 々 such as 100s, 120s, 180s to 500s.Or add band switch and carry out stepping regularly.BG2 closes state for full when static state, BG3 is in cut-off state simultaneously.When BG1 output acoustic-electric switching signal, its negative signal triggering BG2 that jumps makes it to end, and BG3 enters full temporary stable state of closing.The temporarily steady collector electrode high potential of BG2 makes the middle BG4 of relay promotion circuit (5) be in the full state that closes, make the J adhesive, thereby J0, J2 connect, load L1, the L2 work of switch on, when BG2, BG3 after stable state end temporarily regularly, return to that BG4 full closes, BG3 by the time, the collector electrode electronegative potential of BG2 is in BG4 to end, and high potential appears in collector electrode, and J discharges, J0, J1 connect, load L1, L2 and road.Circuit (4) reliable operation, accurately when monostable is triggered has adopted speed-up capacitor C3 and filter capacitor C9, and to promote BG4 reliably, exactly, the collector load of BG4 is the magnet exciting coil that relay promotes J in the circuit (5).The intermediate contact J0 of J and normally opened contact J2 connect the load and the 220V AC power other end respectively, realize the control to load.Light-operated circuit (6) adopts locking and the basic principle of opening acoustic-electric switching amplifier (3).Slacken the enlarging function of acoustic-electric switching amplifier (3) during locking significantly, make BG1 be close in the full state that closes, the acoustic-electric switching signal can not trigger monostable and trigger timing circuit (4), so promptly reached the purpose of the light-operated locking of its light source, utilize monostable to trigger timing circuit (4) in temporarily steady recovery process simultaneously, no longer accept the characteristics of triggering, the photosensitive reflection that controlled light source is caused is inoperative, be the control that the load ON time only is subjected to monostable triggering timing circuit (4), and controlled light source control.In the side circuit debug process,, consider that D5 adopts germanium diode or removes this diode for taking into account the contradiction of sound controling sensitivity and light-operated locking reliability.Normal bright switch (7), when hand switch K1 is closed, the load normal open, when K switch 1 open circuit, light or acoustic control system are still accepted in load.

The utlity model has following advantage:

1. be installed in low-voltage electrical apparatus, as control corridor lighting or public place illumination, because the timing outage effect after light-operated locking and the acoustic control can be eliminated normal round the clock bright lamp, energy savings.

2. light-operated good reliability, sound controling sensitivity height make and control very convenient, safety.Do not need mould to seek switch, do not need the hand held controller tool, everybody step, calling.Clap hands and all can realize control.Command range is 5～15m.

3. circuit parameter is very wide, is easy to make.Cost is low, volume is little, in light weight, convenient by dress.

4. response speed is fast, does not have blunt sense.

5. the power consumption of this machine is no more than 0.35W.About 3 degree of i.e. year power consumption.Load capacity generally is no more than 110W, can transship 2.5 times.Also can design as required.

6. for considering the custom and the special operating position of Chinese Spring Festival, this machine is provided with manually normal bright switch.

Fig. 1 is the utility model profile schematic diagram:

9 for connecting the lead of low-voltage electrical apparatus; 10 is power line.

Fig. 2 is a square circuit diagram.

Fig. 3 is circuit theory diagrams.

The electric parameter index:

BG1～BG4：9013 HFE：BG1：130～400；BG2、BG3：100～250；

BG4：90～250；MIC F113

D1～D4:1N4003; D:5.5～6.5 volt; D5:2AP;

J:JRc, 6v, 0.5A; W:10 kilohm

R1:2.2～5.6 kilohm; The R2:1 megohm; R3:1～4.7 kilohm;

R4:1～4.7 kilohm; R5:10～51 kilohm; R6:100 kilohm～1 megohm;

R7:1～4.7 kilohm; R8:51～150 ohm; R10:5.1～15 ohm;

R11:510 kilohm～1 megohm

C1:0.022～4.7 microfarads/50 volt; C2:0.022～47 microfarads/50 volt;

C3:4.7～10 microfarads/10 volt; C4:200～2000 microfarads/10 volt;

C5, C6:100～200 microfarads/10 volt; C7:470～2000 microfarads/10 volt;

C8:1～2 microfarads/400 volt; C9:0.1～0.47 microfarad/50 volt

Claims

1, the light-operated acoustic control timing switch of a kind of low-voltage electrical apparatus is characterized in that: trigger timing circuit (4), relay promotion circuit (5), light-operated circuit (6), normal bright switch (7) and shell (8) by capacity voltage dropping circuit (1), regulator rectifier circuit (2), acousto-optic conversion amplifier (3), monostable and form;

The 220V AC power is through capacity voltage dropping circuit (1) step-down, behind regulator rectifier circuit (2) rectifying and voltage-stabilizing, direct voltage is supplied with acoustic-electric switching amplifier (3) and light-operated circuit (6), acoustic-electric switching amplifier (3) converts extraneous signal to the signal of telecommunication, be input to monostable and trigger timing circuit (4), light-operated circuit is locked acoustic-electric switching amplifier (3) by the light time, not acoustic-electric switching amplifier (3) is opened by the light time, convert pulse triggering signal to by monostable triggering timing circuit (4) again and be input to relay promotion circuit (5), make its inherent relay J adhesive, impel the low-voltage electrical apparatus conducting.Its rp pulse was input to relay promotion circuit (5) when then monostable triggered interior the timing circuit of timing circuit (4) and makes monostable trigger timing circuit (4) to withdraw from temporary stable state, relay J in it is discharged, impel low-voltage electrical apparatus to disconnect, light-operated circuit (6) is locked acoustic-electric switching amplifier (3) by the light time light-operated, be to make it reduce the enlarging function of acoustic-electric conversion significantly, reach light-operated preferential purpose, and under controlled light irradiation, the lock function of light-dependent control element does not influence the recovery process that monostable triggers timing circuit (4), continue adhesive thereby make relay promote the interior relay of circuit (5), load is conducting and disconnection by timing still.

2, the light-operated acoustic control timing switch of low-voltage electrical apparatus according to claim 1, it is characterized in that, described capacity voltage dropping circuit (1) is formed one termination 220V AC power, the described regulator rectifier circuit of another termination (2) by the decompression capacitor C8 and the release resistance R 11 of parallel connection.

3, the light-operated acoustic control timing switch of low-voltage circuit according to claim 1, it is characterized in that, described regulator rectifier circuit (2) comprises 4 diode D1～D4, voltage stabilizing didoe D, 3 capacitor C 6, C7, C5 and resistance R 8, R10, D1～D4 forms bridge rectifier, and C7, R10, C6 form ∏ shape filter circuit, and R8, C5 form " shape filter circuit.Bridge rectifier D1～D4 one input 220V AC power, the output of its another input and described capacity voltage dropping circuit (1), promptly Bing Lian R11 and C8 one end connect.

4, the light-operated acoustic control timing switch of low-voltage electrical apparatus according to claim 1, it is characterized in that, described acoustic-electric switching amplifier (3) is by electret microphone MIC, triode BG1, R1, R2, R3, C1 and potentiometer W form, wherein MIC, BG1, R1, R2, R3, C1 form no self excited amplifier, the BG1 collector electrode connects W one end, and also order stable state of the W other end triggers timing circuit (4), and its convertible tip triggers timing circuit (4) by C2 and also order stable state of D5.

5, the light-operated acoustic control timing switch of low-voltage electrical apparatus according to claim 1, it is characterized in that, described monostable triggers timing circuit (4) and comprises 2 triode BG2, BG3, resistance R 4, R5, R6, R7, capacitor C 3, C4, C9 form, the BG2 base stage connects W convertible tip in the acoustic-electric switching amplifier (3) by C2 and D5, C4, R6 form timing element, export by the BG2 collector electrode, or the collector electrode of BG3 output all can, only need that relay is promoted in circuit (5) the repeat circuit J J1 or J2 and connect load and do corresponding replacing and get final product.

6, the light-operated acoustic control timing switch of low-voltage electrical apparatus according to claim 1, it is characterized in that, described relay promotes circuit (5), form by triode BG4, Rg, relay J, J0, J1, J2 are respectively intermediate contact, normally-closed contact, the normally opened contact of J, the BG4 collector electrode connects the magnet exciting coil of J, and J2 or J1 connect load L1, L2 and the 220V AC power other end respectively.

7, the light-operated acoustic control timing switch of low-voltage electrical apparatus according to claim 1, it is characterized in that, described light-operated circuit (6), Rg forms by light-sensitive element, its two ends be connected between DC power supply C5, the Rg respectively and acoustic-electric switching amplifier (3) in the base stage of BG1, to reach the purpose that Rg is subjected to light time locking acoustic control; Otherwise, be not subjected to the light time to lock the purpose of acoustic control as Rg being placed D5 place (or other position) can reach.

8, the light-operated acoustic control timing switch of low-voltage electrical apparatus according to claim 1, it is characterized in that coming described normal bright switch (7), wherein join K1 and be connected on interior J0 and J2(or the J1 of relay promotion circuit (5) repeat circuit J) between, this connection can reach the purpose of manual override conducting.