CN2894097Y - Multifunction electronic switch for domestic electric appliances - Google Patents

Abstract

The utility model is a new multifunctional electric switch used for the household appliances, which can solve the problems of the present sub-ultrasonic remote electronic switch, like the single function, the large interference from the outside and the unstable signals. This utility model comprises a control circuit positioned in a shell or a fixed apparatus or a power source socket, and the control circuit includes a sub-ultrasonic remote frequency selective amplifier, a detection phase reversal amplifier, a bistable flip-flop, a switch circuit and a DC power supply circuit and an electro-acoustic transducer circuit, an acoustic-optical control amplifier, a selective load switch circuit, a detection phase reversal amplifier of the acoustic-optical control channel, a delay closing switch circuit and a signal state indicator circuit. The structure of the present utility model is novel and unique, which has a comprehensive controlling function of acoustic, optical and remote control of the load with the advantages of anti-interference, stable signal, small size, and multi-function. This utility model can work repeatedly within a short interval or work for a long time, which is convenient for use and is a creative improvement of the present sub-ultrasonic remote control switch of the household appliances with a broad developing and application prospect.

Description

The multifunctional electronic switch of household electrical appliance

One, technical field

The utility model relates to the multifunctional electronic switch of a kind of mains switch, particularly a kind of household electrical appliance.

Two, background technology

Switch is that control on/off institute is essential.Many employings sound, light-operated switch in corridor or passageway run into the sound at night at present, and electric light is lighted automatically, extinguish a moment later, this provides great convenience for people's life, but this switch can not solve the long bright problem of electric light, therefore, limited its range of application.Common pulling switch or wall switch, need people directly to go operation with hand, this is to the elderly, the disabled person, children are troubles, summer is in mosquito net or when needing in bed winter to operate this class switch, it is inconvenient that the normal person also can feel, in order to provide convenience to people, once the someone had developed a kind of sub-ultrasonic remote-control switch, adopt relay as switch element in the circuit of this remote control switch, capacitor is as voltage drop element, because their volume is all bigger, switching device volume with their assemblings is corresponding bigger, want this remote control switch is installed in household electrical appliance or the supply socket quite difficulty, the structure of this remote control switch is that plug and socket and electronic component are installed in the rectangle box, during use, be inserted into the indoor power supply socket, the attaching plug of desk lamp or electric fan is inserted in the socket of this switch, and the pinching air bag sends inferior ultrasonic, can carry out remote control to electrical equipment.Use from reality, this remote control switch can only be used for desk lamp, desk fans etc. have the portable electrical equipment of attaching plug, the use limitation is big, it is not good enough to cut effect, for this reason, the inventor had once developed a kind of sub-ultrasonic remote-control switch and air bag thereof of household electrical appliance in 1994, and applied for that patent, the patent No. are ZL 94224083.9, though very big progress has been arranged than aforesaid sub-ultrasonic remote-control switch, but in use still exist use face little, only can be by the ultrasonic air bag controlled in Asia, and interference free performance is poor, is subjected to external interference big, the single channel input, state labile can not be controlled break-make, therefore for a long time, the sub-ultrasonic remote-control switch of this function singleness is not effectively developed in practice and is used, and its improvement is imperative.

Three, utility model content

Actual needs at above-mentioned situation and household electrical appliance, the purpose of the utility model just provides a kind of multifunctional electronic switch of novel household electrical appliance, can effectively solve existing sub-ultrasonic remote-control electronic switch function singleness, be subjected to external interference big, the problem of jitter, the technical scheme of its solution is, with sound, light-operated and inferior ultrasonic control signal is handled respectively earlier, remerge, obtain stable control signal, control circuit be contained in the housing or fixed electrical equipment or supply socket in, said control circuit includes the sub-ultrasonic remote-control frequency selective amplifier, the detection inverting amplifier, flip and flop generator, switching circuit and DC power supply circuit and acoustic-electrical transducer circuit, acousto-optic control amplifier, select load switching circuit, the detection inverting amplifier of acousto-optic control passage, time-delay closing switching circuit and signal condition indicating circuit constitute, and the acoustic-electrical transducer circuit is by Electret condenser microphone (MIC) and its AC load resistance (R ₄), direct current current-limiting resistance (R ₃) be composed in series, being connected between power supply (Vcc) and the ground wire, said acousto-optic control amplifier is by triode (Q ₁) be connected the load resistance (R of collector electrode with it ₈), connect the biasing resistance (R of base stage ₅), connect selection load switch (K) series limiting resistor (R of base stage ₆) and photo resistance (R ₇) constitute, base stage meets signal input coupling capacitance (C ₃), collector electrode meets signal output capacitance (C ₄), through current-limiting resistance (R ₉) connect power supply (Vcc), grounded emitter; Selecting load switching circuit is by triode (Q ₁), switch on the base stage (K) and current-limiting resistance (R ₆), photo resistance (R ₇) be composed in series; The detection inverting amplifier of acousto-optic control passage is triode (Q ₂) with its base stage to the multiplication of voltage detector diode (D that is connected between the emitter ₂) and collector electrode on load resistance (R ₁₀) form; The time-delay closing switching circuit is by two triode (Q ₇, Q ₈) and the auxiliary circuit formation, transistor emitter ground connection, collector electrode connects power supply (Vcc) through resistance, and the input base stage meets signal output capacitance (C ₇); The signal condition indicating circuit is by being connected bistable trigger-action circuit triode (Q ₆) light-emitting diode (D that connects on the collector electrode ₆) and resistance (R ₂₀) form light-emitting diode (D ₆) be connected with power supply (Vcc), the utility model novel structure uniqueness, integrated control functions with acoustic control to load, light-operated and remote control, anti-interference, signal stabilization, volume is little, can directly pack into fixedly in the electrical equipment and supply socket, can people directly control fixedly electrical equipment such as Line lamp, ceiling fan, can allow people movable electrical appliances such as desk lamp, desk fan be controlled again by supply socket, can be repeatedly discontinuous operation in short-term, work in the time of also can growing, very easy to use, be to the inventive improvements of existing household electrical appliances with the sub-ultrasonic remote-control switch, the wide development application prospect is arranged.

Four, description of drawings

Fig. 1 is a control circuit schematic diagram of the present utility model.

The inferior ultrasonic airbag structure figure that Fig. 2 uses for the utility model remote control.

Five, embodiment

Below in conjunction with accompanying drawing embodiment of the present utility model is elaborated.

The utility model is control circuit to be contained in the housing or in fixed electrical equipment or the supply socket constitute, said control circuit includes sub-ultrasonic remote-control frequency selective amplifier, detection inverting amplifier, flip and flop generator, switching circuit and DC power supply circuit and acoustic-electrical transducer circuit, acousto-optic control amplifier, the detection inverting amplifier of selecting load switching circuit, acousto-optic control passage, time-delay closing switching circuit and signal condition indicating circuit constitute, the acoustic-electrical transducer circuit is connected between power supply (Vcc) and the ground wire, acousto-optic control amplifier input terminal triode (Q ₁) base stage meets triode signal input coupling capacitance (C ₃), triode (Q ₁) collector output meets signal output capacitance (C ₄), and through current-limiting resistance (R ₉) meet power supply (Vcc), triode (Q ₁) grounded emitter; Select load switching circuit by triode (Q ₁) switch (K), the current-limiting resistance (R that connect on the base stage ₆) and photo resistance (R ₇) be composed in series, and through current-limiting resistance (R ₉) connect power supply (Vcc); The detection inverting amplifier input triode (Q of acousto-optic control passage ₂) base stage meets acousto-optic control amplifier signal output capacitance (C ₄), collector output meets load resistance (R ₁₀) and the input of time-delay closing switching circuit, signal condition indicating circuit power supply termination power (Vcc), the triode (Q of another termination bistable trigger-action circuit ₆) collector electrode.

Above-mentioned control circuit and working condition are provided by Fig. 1, and its details is described as follows:

The acoustic-electric transducing circuit that said acoustic-electric transducing circuit is a dual output is by Electret condenser microphone (MIC), AC load resistance (R ₄) and direct current current-limiting resistance (R ₃) be connected in series between power supply (Vcc) and the ground wire and constitute, during its work, for direct current, the electric current that direct current (Vcc) is confessed is by resistance (R ₃) to resistance (R ₄), go into ground through Electret condenser microphone again, operating current is provided for Electret condenser microphone (MIC); For interchange, the AC load resistance of Electret condenser microphone (MIC) has only resistance (R ₄), when acoustic wave action arrived Electret condenser microphone (MIC), dress field effect transistor amplifier was converted to signal code with sound wave, this current flowing resistance (R in it ₄) obtaining AC signal voltage, this voltage is by electric capacity (C ₈) be transported to inferior ultrasonic frequency selective amplifier, by electric capacity (C ₃) be transported to sound, light-operated amplifier, resistance (R ₃) and electrochemical capacitor (C ₂) form resistance-capacitor filter device at the corresponding levels, by electric capacity (C ₂) alternating current path at the corresponding levels is provided.Prevent to interfere with each other between each circuit electrochemical capacitor (C ₂) voltage at two ends promptly is operating voltage at the corresponding levels;

Said acousto-optic control (circuit is preposition) amplifier is by triode (Q ₁) and resistance (R ₈), (R ₅), (R ₆), switch (K) and photo resistance (R ₇) constitute load resistance (R ₈) meet triode (Q ₁) collector electrode, biasing resistance (R ₅) meet triode (Q ₁) base stage, select load switch (K) and the current-limiting resistance (R that connects ₆), photo resistance (R ₇) be connected to triode (Q ₁) base stage and biasing resistance (R in parallel ₅) and load resistance (R ₈) between, signal input coupling capacitance (C ₃) end and triode (Q ₁) base stage links to each other the AC load resistance (R of the other end and acoustic-electrical transducer ₄) and the signal input capacitance (C of Electret condenser microphone (MIC), sub-ultrasonic remote-control frequency selective amplifier (circuit) ₈) continuous, triode (Q ₁) grounded emitter, and with electrochemical capacitor (C ₅) and current-limiting resistance (R ₉) the R-C filter formed joins electric capacity (C ₅) for this circuit provides the alternating current path, in order to avoid interfere with each other resistance (R between circuit ₈) through current-limiting resistance (R ₉) meet power supply (Vcc), triode (Q ₁) collector electrode meets the input end capacitor (C of the detection inverting amplifier of acousto-optic control path ₄), by the photo resistance (R of series connection ₇), resistance (R ₆) and the selection load switching circuit that constitutes of switch (K) be connected to triode (Q ₁) base stage and resistance (R ₅), (R ₈), (R ₉) and electric capacity (C ₅) be total between end, constitute triode (Q ₁) part of base stage bias current.

The operation principle of amplifier at the corresponding levels is such, if controlled load is an illuminating lamp, will select load switch (K) to place on-state, makes resistance change very little of photo resistance daytime because of illumination, photo resistance (R ₇) and resistance (R ₆) series connection total resistance value than resistance (R ₅) value little a lot, resistance value is little, the bias current electric current is just big, is enough to make triode (Q ₁) be operated in the saturation region and lose amplification to signal, therefore, daytime, illuminating lamp can not be lighted; At night, photo resistance (R ₇) resistance become very big, offer triode (Q ₁) base current make it be operated in magnifying state, be transferred to late-class circuit if there is sound control signal just can successfully obtain amplification; When controlled load was electric fan, (K) threw off-state with switch, and this series arm of photo resistance is opened from circuit interruption, no matter daytime, night like this, voice signal is once electric capacity (C ₃) be transferred to triode (Q ₁) base stage, through amplify producing bigger collector current, this electric current flows through load resistance (R ₈), be converted to signal voltage, and by capacitor (C ₄) be transported in the level acousto-optic control circuit of back.

The detection inverting amplifier of said acousto-optic control path is by triode (Q ₂) be connected the detector diode (D between base stage, emitter with it ₂), connect the load resistance (R of collector electrode ₁₀), integrating resistor (R ₁₁) and the integrating capacitor (C of series connection with it ₆) the ground connection formation, integrating resistor (R ₁₁) and integrating capacitor (C ₆) between be connected to the input end capacitor (C that drives the time-delay closing switching circuit ₇), the same triode (Q of its working condition ₄) the detection inverting amplifier (repeating later on) formed.

Said driving time-delay closing switching circuit is by triode (Q ₇), (Q ₈) and electric capacity (C ₇), resistance (R ₂₄), (R ₂₂), (R ₂₅), electric capacity (C ₁₆) constitute electric capacity (C ₇) and resistance (R ₂₄) form differential circuit and meet triode (Q ₇) base stage, electric capacity (C simultaneously ₇) be again acousto-optic control circuit signal input capacitance, resistance (R ₂₂) be remote signal transmission resistance, be connected to triode (Q ₇) base stage, and with resistance (R ₂₄) be composed in series bleeder circuit, resistance (R ₂₅) meet triode (Q ₇) collector electrode, be to meet triode (Q ₇) collector load resistor, be again to meet triode (Q ₈) base electrode bias resistance and meet electrochemical capacitor (C ₁₆) charging resistor, with triode (Q ₇) collector electrode and triode (Q ₈) base stage and electrochemical capacitor (C ₁₆) anode and resistance (R ₂₅) an end connect into a node.

Its working condition is, when voice signal amplifies, processing makes triode (Q ₇) when base stage has positive voltage, become saturation conduction, triode (Q by original ending ₈) end; Otherwise, as triode (Q ₇) when ending, triode (Q ₈) saturation conduction, as triode (Q ₈) during saturation conduction, one-way SCR (SCR) ends, the load outage.The principle of time-delay closing switch is: triode (Q ₇) when base stage does not have positive voltage, triode (Q ₇) end, electric current is through resistance (R ₂₅) to electric capacity (C ₁₆) charging, electric capacity (C ₁₆) both end voltage do not reach triode (Q ₈) end, electric current is through resistance (R ₂₆) supply with the grid bias current of controllable silicon (SCR), controllable silicon (SCR) saturation conduction, load gets electric work, through about 1 minute charging interval, electric capacity (C ₁₆) both end voltage reaches triode (Q ₈) during conducting, triode (Q ₈) saturation conduction, the control utmost point of controllable silicon (SCR) and negative electrode are by short circuit, and controllable silicon (SCR) is by (being equivalent to switch disconnects), and load is cut off the power supply, and plays the effect of time-delay closing switch.

Described switching circuit is by one-way SCR (SCR) and rectifier diode (D ₇)-(D ₁₀) form.By (D ₇) to (D ₁₀) bridge rectifier formed be connected in the load circuit after anode, the negative electrode of controllable silicon (SCR) are in parallel.As triode (Q ₈) when ending, power supply (Vcc) is by resistance (R ₂₆) providing trigger current to controllable silicon (SCR) the control utmost point, controllable silicon (SCR) saturation conduction is equivalent to switch closure, and the electric current of bridge rectifier flows through controllable silicon (SCR), and load gets electric work, otherwise, quit work.

Load circuit is by shown in the circle 1, and load is respectively the low-voltage lighting incandescent lamp (BL) that an electric fan (M) or step-down transformer (B) connect, and when 3 ends connect 4 terminals of electric fans (M), 5 ends connect 6 terminals of (M), and electric fan just can operate as normal; The outer selection load switch of acousto-optic control this moment amplifier should disconnect, control fan with this electronic switch summer, as long as some sounds are arranged, electric fan can automatic energized turn round about 1 minute, when also not arriving 1 minute, the sound once again, will start the clock from the last sound, this drive manner of electric fan is the most suitable in the second half of the night, if thisly be subjected to the automatic broken time of the common sound too short, be that the emission of pinching air bag is inferior ultrasonic, acoustic wave action is to Electret condenser microphone (MIC), through a series of processed of electronic circuit, finally to control electronic switch and enter long conducting state, electric fan can turn round down always, has only the once inferior ultrasonic wave of emission, this long conducting state just is disengaged, and the position that connects electric fan certainly also can change common 220 volts of incandescent lamps into and do load, just selects the position of load switch (K) to change.4 ends that connect step-down transformer (B) when 3 ends, 5 ends connect 6 ends of (B), transformer (B) promptly is switched on, load selector switch (K) should be located on-state, when the controlled and conducting of time-delay closing switching circuit, transformer (B) is elementary is with 220 volts of civil powers, through electromagnetic induction, secondaryly obtains low-voltage AC and luminously (adopts 12 volts of motorcycle steering lamp bubbles/8W) in the test to battery lamp bubble (BL) power supply.The idea of this scheme is, when needing light at night, the bulb wattage that present people use is generally bigger, just waken up to open eyes in the sleep and just seen accent light, often human eye perceives is uncomfortable, and with the low wattage bulb illumination of this low-voltage, light is soft, and (220 volts of incandescent lamp bulbs also have 6W, 8W power, but because of tungsten filament very long, be easy to damage), this point has tangible power savings, controls a light source with this electronic switch in the room, make floor light, a sound is arranged at night, can automatic bright lamp about 1 minute, after extinguish automatically, bright lamp dislikes the time not enough, with sub-ultrasonic remote-control once, illuminating lamp is bright always, has just entered the room and has opened the door and promptly have light to occur automatically, the switch of need not operating machine makes things convenient for people's life really.

Described DC power supply circuit is by 220 volts of ac power supply terminals 1 in the link circuit, series connection insurance resistance (R ₁), series connection rectifier diode (D ₁), series connection step-down current-limiting resistance (R ₂), series filtering capacitor (C ₁) and rectifier diode (D ₇)-(D ₁₀) form, when power supply terminal (1) was positive half cycle, charge power supply was through resistance (R ₁), diode (D ₁), electric capacity (C ₁), diode (D ₁₀), terminal 2 gives electric capacity (C ₁) charging, capacitor (C ₁) fill voltage (Vcc) provide operating current for each electronic circuit, electric capacity (C ₁) be the communication channel of whole electronic circuit.

Said sub-ultrasonic remote-control frequency selective amplifier is by triode (Q ₃) and resistance (R ₁₂), inductor (L), electric capacity (C ₉) and electric capacity (C ₈) constitute resistance (R ₁₂) and electric capacity (C ₈) meet triode (Q ₃) base stage, electric capacity (C ₉) and inductor (L) connect transistor collector, grounded emitter connects the resistance (R of its base stage ₁₂) be biasing resistance, be triode (Q by it ₃) set up a suitable working point, connect the inductor (L) and the capacitor (C of its collector electrode ₉) form antiresonant circuit, determine its resonance in inferior supersonic frequency by its parameter, can set two different frequencies, two kinds of different loads in the control room.The signal of front stage circuits is through electric capacity (C ₈) be input to the corresponding levels, have only the signal of inferior supersonic frequency could be by triode (Q ₃) effectively amplify, on collector electrode, obtain amplifying signal, by the capacitor (C that is connected collector electrode ₁₁) deliver to the next stage circuit.By current-limiting resistance (R ₁₃) and electrochemical capacitor (C ₁₀) composition R-C filter circuit at the corresponding levels, electric capacity (C ₁₀) for the corresponding levels provide alternating current path, prevent to interfere with each other between each circuit electrochemical capacitor (C ₁₀) terminal voltage, promptly be operating voltage at the corresponding levels.

The detection inverting amplifier of said remote control circuit is by triode (Q ₄) and electric capacity (C ₁₁), diode (D ₃), resistance (R ₁₄) constitute electric capacity (C ₁₁), diode (D ₃) meet triode (Q ₄) base stage, resistance (R ₁₄) an end ground connection, another termination triode (Q ₄) collector electrode and resistance (R ₁₅), emitter connects power supply (Vcc), connects the electric capacity (C of base stage ₁₁) another termination triode (Q ₃) collector electrode, be signal input coupling partiting dc capacitor, connect the diode (D of base stage and emitter ₃) be detector diode, connect the resistance (R of collector electrode ₁₄) be load resistance, this is that one-level does not have biasing resistance, do not establish the amplifying circuit of working point, usual no signal input or signal hour, triode (Q ₄) end, could conducting when signal amplitude is enough big, if the course of work is moment arrival triode (Q ₄) when the signal of base stage is positive half cycle, detector diode (D ₃) conducting, the conducting electric current flows through electric capacity (C ₁₁) be recharged; As triode (Q ₄) when base signal becomes negative half period, triode (Q ₄) the emitter conducting, with electric capacity (C ₁₁) on the voltage stack of having filled, strengthened triode (Q ₄) emitter conducting intensity, its base current is increased, its collector current is bigger, current flowing resistance (R ₁₄) the generation signal voltage.This voltage signal is through resistance (R ₁₅) and electrochemical capacitor (C ₁₂) integrating circuit formed, at electric capacity (C ₁₂) two ends obtain integral voltage, through differential capacitance (C ₁₄) and (C ₁₅) couple a signal to bistable trigger-action circuit.

Said flip and flop generator (circuit) is by triode (Q ₅), (Q ₆) and resistance (R ₁₆) (R ₁₇), (R ₁₈), (R ₁₉), (R ₂₀), (R ₂₁), (R ₂₂), (R ₂₃), electric capacity (C ₁₃), (C ₁₄), (C ₁₅) and diode (D ₄), (D ₅), light-emitting diode (D ₆) constitute triode (Q ₅) base stage and resistance (R ₂₁), electric capacity (C ₁₃) and diode (D ₄) anodal linking to each other, and through resistance (R ₂₁) and resistance (R ₂₀), (R ₂₂), (R ₂₃), (R ₁₉) and triode (Q ₆) collector electrode links to each other resistance (R ₂₀) through light-emitting diode (D ₆) meet power supply (Vcc), resistance (R ₁₉) another termination power (Vcc), diode (D ₅) negative pole and resistance (R ₂₃) through electrochemical capacitor (C ₁₅), (C ₁₂) ground connection, triode (Q ₅) collector electrode connecting resistance (R ₁₆), (R ₁₇) and resistance (R ₁₈), and through resistance (R ₁₈) meet triode (Q ₆) base stage and diode (D ₅) positive pole, grounded emitter, triode (Q ₅) diode (D on the base stage ₄) meet electrochemical capacitor (C ₁₄) and resistance (R ₁₇), triode (Q ₆) collector electrode is through resistance (R ₁₉) connecing power supply (Vcc), grounded emitter it is to be noted, and the peripheral cell of this trigger becomes two and occurs, and parameter equates, position symmetry, wherein resistance (R ₁₆) and (R ₁₉) be respectively triode (Q ₅), (Q ₆) collector load resistor, resistance (R ₁₈) and (R ₂₁) be respectively triode (Q ₅) and triode (Q ₆) cross-couplings resistance between collector electrode and the base stage, resistance (R ₁₇) and (R ₂₃) be respectively triode (Q ₅), (Q ₆) differential resistance, diode (D ₄) and (D ₅) be respectively triode (Q ₅) and (Q ₆) the pulse steering diode, electrochemical capacitor (C ₁₄) and resistance (R ₁₇) and diode (D ₄) composition triode (Q ₅) trigger impulse differential circuit and input circuit; Electrochemical capacitor (C ₁₅), resistance (R ₂₃) and diode (D ₅) composition triode (Q ₆) trigger impulse differential circuit and input circuit, connect triode (Q ₅) electric capacity (C of base stage ₁₃) important role, when preventing that the outage of each electric main from sending a telegram here again load out of control, by electric capacity (C ₁₃) link position require each triode (Q ₅) when switching on again, all to end triode (Q ₅) the collector electrode high potential, triode (Q ₆) the collector electrode electronegative potential, light-emitting diode (D ₆) and resistance (R ₂₀) series connection, be connected power supply (Vcc) and triode (Q ₆) between the collector electrode, as triode (Q ₆) during saturation conduction, be equivalent to triode (Q ₆) ground connection, there is electric current to flow through light-emitting diode (D ₆) and luminous; As triode (Q ₆) when ending, diode (D ₆) can be not luminous.

Flip and flop generator is work like this: when people launched inferior ultrasonic wave with remote controller (present embodiment provides inferior ultrasonic air bag), behind the amplification demodulator through the front, the signal that transmits was through electric capacity (C ₁₄) and (C ₁₅) import, this two-way differential circuit only works to the triode that is in saturation condition, and each outage is incoming call again, triode (Q ₆) work in saturation condition certainly, by electric capacity (C ₁₅) and resistance (R ₂₃) differentiated pulse is affacted triode (Q ₆), the negative pulse that obtains is by diode (D ₅) affact triode (Q ₆) base stage, weaken conducting intensity, withdraw from entering the amplification region from the saturation region, collector potential raises, resistance (R ₂₁) coupling, triode (Q ₅) the base potential rising, triode (Q ₅) the collector potential reduction, resistance (R ₁₈) coupling triode (Q ₆) the base stage reduction, collector potential raises.This is a very strong positive feedback effect, makes triode (Q rapidly ₆) end triode (Q by saturated becoming ₅) becoming saturation conduction by ending, light-emitting diode stops luminous, triode (Q ₆) the collector electrode high potential, resistance (R ₂₂) the control late-class circuit, load gets electric work, if there is not the effect of sub-ultrasonic remote-control signal, circuit just is stabilized in this state.

Said sub-ultrasonic remote-control signal is realized by the ultrasonic air bag in Asia, its air bag is provided by Fig. 2, structure is, be bonded with a whistle body 2 in exit, Pear-Shaped utricule 1 top, chamber, the cylindricality whistle 3 perpendicular to base is arranged at body base 6 middle parts, the whistle, on the body root sidewall of the whistle, have whistle tube 4, whistle body inwall is provided with screw thread, and be provided with bolt type end socket 5, the bolt of this end socket can move up along the rotation of whistle body 2 inner threads, by changing chamber, whistle capacity, can send the inferior ultrasonic wave of at least two kinds of different frequencies, thereby can control at least two remote control switches on the different household electrical appliance, solve at least two kinds of problems how different household electrical appliance are controlled of existence in the same room preferably.It should be appreciated that, produce inferior hyperacoustic method have a variety of, such as going back available electron element built-up circuit, make the sub-ultrasonic remote-control device, only providing inferior ultrasonic air bag in the present embodiment, can be 94224083.9 patent referring to the patent No. about the ultrasonic air bag in Asia, has not a particular requirement.

Below in conjunction with example household electrical appliance multifunctional electronic switch working condition is done the description of system again:

One, the load of controlling is the course of work of electric fan: cut off the power supply from electronic switch, be connected correct between electric fan and circuit, thrown and disconnected, reclosing power supply again begins, each circuit all will enter and set up the operating state stage in the electronic switch, at first be to set up DC power supply (Vcc), according to charge circuit from 220V AC power end through resistance (R ₁), diode (D ₁), resistance (R ₂), electric capacity (C ₁) to diode (D ₂), rapidly to electrolytic capacitor (C ₁) charging, because the time constant of charge circuit is very little, each second is to its charging 25 times, makes power supply (Vcc) begin to be charged to stable from null value very soon, and to each circuit supply, meanwhile, power supply (Vcc) is through resistance (R ₂₅) to electrolytic capacitor (C ₁₆) charging also continuing because parameter is determining that charging is very slow, in the initial charge stage, triode (Q ₈) base potential is lower, deficiency is so that triode (Q ₈) conducting, still be in cut-off state, be equivalent to the switch of a disconnection, power supply (Vcc) is by resistance (R ₂₆) bias current is provided for the control utmost point of one-way SCR (SCR), one-way SCR (SCR) saturation conduction is equivalent to switch closure, and load is charged, the electric fan running, approximately through time of 1 minute, electric capacity (C ₁₆) voltage at two ends is elevated to and makes triode (Q ₈) conducting, triode (Q ₈) be equivalent to the switch of 1 closure, with the control utmost point and the negative electrode short circuit of one-way SCR (SCR), the current vanishes of the control utmost point, controllable silicon (SCR) disconnects, the load outage, electric fan stops operating.This state lasts till when sound wave is arranged always and just changes, and as sound (as palm sound, cough sound etc.), when affacting Electret condenser microphone (MIC), (MIC) at once sound wave is converted to the signal of telecommunication, and signal is leaded up to electric capacity (C ₈) be transferred to by triode (Q ₃) the inferior ultrasonic frequency selective amplifier formed, because of frequency is not right, invalid; Another kind of through electric capacity (C ₃) be transferred to sound, light-operated amplifier triode (Q ₃) base stage (K switch throw to disconnect), signal is fully effectively amplified triode (Q through this resistance-capacitance coupled amplifier ₃) collector electrode obtains very strong signal, by electric capacity (C ₄) be transferred to triode (Q ₂) base stage, amplify through the detection paraphase, by triode (Q ₂) collector electrode output, again by resistance (R ₁₁) and electric capacity (C ₆) integrator formed further processes, at electric capacity (C ₆) on obtain integral voltage, again by electric capacity (C ₇) and resistance (R ₂₄) differentiator formed, at resistance (R ₂₄) and triode (Q ₇) the emitter two ends obtain in spike triode (Q ₇) saturation conduction, electric capacity (C ₁₆) by short circuit dischange, triode (Q ₈) end, one-way SCR (SCR) saturation conduction, load is charged, and electric fan rotates, and through 1 minute, electric fan stopped operating approximately.Occur sound again, experience above change procedure again.In the phenomenon that the time-delay of not arriving the sound wave controlled electronic switch to occur in 1 minute, send evaluation time with last sound, if want to allow the running of electric fan long period, just send inferior ultrasonic wave with hand pinching air bag, Electret condenser microphone (MIC) is converted to the signal of telecommunication with sound wave at once, and one road signal is by electric capacity (C ₃) be transported to triode (Q ₁) resistance-capacitance coupled amplifier formed, it is the same with said process that signal is exaggerated processing procedure, by capacitor (C ₈) signal conveys is arrived triode (Q ₃) frequency selective amplifier formed, signal is effectively amplified, by electric capacity (C ₁₁) be transported to by triode (Q ₄) the detection inverting amplifier formed, the signal that obtains after the amplification is exported by collector electrode, through resistance (R ₁₅) and electric capacity (C ₁₂) integrating circuit formed is with signal integration, by electric capacity (C ₁₅) and resistance (R ₂₃) differential circuit formed affacts triode (Q with signal ₆), impel triode (Q ₆) end triode (Q rapidly from saturated becoming ₅) from saturated by becoming.Triode (Q ₆) collector electrode output high potential, through resistance (R ₂₂) and resistance (R ₂₄) dividing potential drop, make triode (Q ₇) the base stage high potential, triode (Q ₇) saturation conduction, triode (Q ₈) end, controllable silicon (SCR) saturation conduction, the electric fan running will be removed long-time running, with regard to the pinching air bag, launches once inferior ultrasonic wave and gets final product.

Two, the load of controlling is the course of work of illuminating lamp: with the terminal 4 connecting circuit lead-out terminals 3 of transformer (B), the terminal 6 connecting circuit lead-out terminals 5 of transformer (B) are the correct connection of low-voltage lighting, and entire work process is similar with the control electric fan.Different is the selection load switch of sound, light-operated amplifier will be thrown to closure, and daytime, daylight made photo resistance (R ₇) resistance become very little, to triode (Q ₁) bias current that provides is just big, triode (Q ₁) be operated in the ability that the saturation region loses amplifying signal, light-operated effect that Here it is; (the R of photo resistance at night ₇) resistance becomes very big, makes triode (Q ₁) recover enlarging function to signal since daytime with alternately be night slowly to change, so the control that light-operated effect is amplified also is slowly variation, by resistance (R ₆) determining triode (Q ₁) saturation depth.Illuminating lamp light and extinguish with the running of electric fan with stop to analyze identical, but check analysis, the load that but connects multifunctional electronic switch is diversified, and connected mode also is various, as incandescent lamp (BL) being changed into the luminous group that connected into by many light-emitting diodes (LED) etc.

Because the volume ratio of electronic component is less in DC power supply circuit and the electronic switching circuit, the cumulative volume of this remote control switch is corresponding less, can integral body pack in fixed electrical equipment or the supply socket, become fixed electrical equipment or the multifunctional electronic switch of the portable electrical equipment that is electrically connected with supply socket.Therefore, this multifunctional electronic switch can allow people directly control the break-make of fixed appliances power source, can allow people control the break-make of movable electrical appliances power supply by supply socket again.In case of necessity, also can do housing in addition, constitute independently electronic switch, charger is pegged graft and is used

Particularly for the design and construction of new building power circuit, use this switch can reduce associated materials and operating expenses, provide amenities for the people, control sensitivity, safe and reliable, standby power consumption is few, and the wide development application market is arranged, and economic benefit is huge.

Claims (7)

1, a kind of multifunctional electronic switch of household electrical appliance, be control circuit to be contained in the housing or in fixed electrical equipment or the supply socket constitute, said control circuit includes the sub-ultrasonic remote-control frequency selective amplifier, the detection inverting amplifier, flip and flop generator, switching circuit and DC power supply circuit, it is characterized in that, said control circuit also includes the acoustic-electrical transducer circuit, acousto-optic control amplifier, select load switching circuit, the detection inverting amplifier of acousto-optic control passage, time-delay closing switching circuit and signal condition indicating circuit constitute, the acoustic-electrical transducer circuit is connected between power supply (Vcc) and the ground wire, acousto-optic control amplifier input terminal triode (Q ₁) base stage meets triode signal input coupling capacitance (C ₃), triode (Q ₁) collector output meets signal output capacitance (C ₄), and through current-limiting resistance (R ₉) meet power supply (Vcc), triode (Q ₁) grounded emitter; Select load switching circuit by triode (Q ₁) switch (K), the current-limiting resistance (R that connect on the base stage ₆) and photo resistance (R ₇) be composed in series, and through current-limiting resistance (R ₉) connect power supply (Vcc); The detection inverting amplifier input triode (Q of acousto-optic control passage ₂) base stage meets acousto-optic control amplifier signal output capacitance (C ₄), collector output meets load resistance (R ₁₀) and the input of time-delay closing switching circuit, signal condition indicating circuit power supply termination power (Vcc), the triode (Q of another termination bistable trigger-action circuit ₆) collector electrode.

2, the multifunctional electronic switch of household electrical appliance according to claim 1 is characterized in that, said acousto-optic control amplifier is by triode (Q ₁) and resistance (R ₈), (R ₅), (R ₆), switch (K) and photo resistance (R ₇) constitute load resistance (R ₈) meet triode (Q ₁) collector electrode, biasing resistance (R ₅) meet triode (Q ₁) base stage, select load switch (K) and the current-limiting resistance (R that connects ₆), photo resistance (R ₇) be connected to triode (Q ₁) base stage and biasing resistance (R in parallel ₅) and load resistance (R ₈) between, signal input coupling capacitance (C ₃) end and triode (Q ₁) base stage links to each other the AC load resistance (R of the other end and acoustic-electrical transducer ₄) and the signal input capacitance (C of Electret condenser microphone (MIC), sub-ultrasonic remote-control frequency selective amplifier (circuit) ₈) link to each other triode (Q ₁) grounded emitter, and with electrochemical capacitor (C ₅) and current-limiting resistance (R ₉) the R-C filter formed joins electric capacity (C ₅) for this circuit provides the alternating current path, in order to avoid interfere with each other resistance (R between circuit ₈) through current-limiting resistance (R ₉) meet power supply (Vcc), triode (Q ₁) collector electrode meets the input end capacitor (C of the detection inverting amplifier of acousto-optic control path ₄), by the photo resistance (R of series connection ₇), resistance (R ₆) and the selection load switching circuit that constitutes of switch (K) be connected to triode (Q ₁) base stage and resistance (R ₅), (R ₈), (R ₉) and electric capacity (C ₅) be total between end, constitute triode (Q ₁) part of base stage bias current.

3, the multifunctional electronic switch of household electrical appliance according to claim 1 is characterized in that, said detection inverting amplifier is by triode (Q ₂) be connected the detector diode (D between base stage, emitter with it ₂), connect the load resistance (R of collector electrode ₁₀), integrating resistor (R ₁₁) and the integrating capacitor (C of series connection with it ₆) the ground connection formation, integrating resistor (R ₁₁) and integrating capacitor (C ₆) between be connected to the input end capacitor (C that drives the time-delay closing switching circuit ₇).

4, the multifunctional electronic switch of household electrical appliance according to claim 1 is characterized in that, said driving time-delay closing switching circuit is by triode (Q ₇), (Q ₈) and electric capacity (C ₇), resistance (R ₂₄), (R ₂₂), (R ₂₅), electric capacity (C ₁₆) constitute electric capacity (C ₇) and resistance (R ₂₄) form differential circuit and meet triode (Q ₇) base stage, electric capacity (C simultaneously ₇) be again acousto-optic control circuit signal input capacitance, resistance (R ₂₂) be remote signal transmission resistance, be connected to triode (Q ₇) base stage, and with resistance (R ₂₄) be composed in series bleeder circuit, resistance (R ₂₅) meet triode (Q ₇) collector electrode, be to meet triode (Q ₇) collector load resistor, be again to meet triode (Q ₈) base electrode bias resistance and meet electrochemical capacitor (C ₁₆) charging resistor, with triode (Q ₇) collector electrode and triode (Q ₈) base stage and electrochemical capacitor (C ₁₆) anode and resistance (R ₂₅) an end connect into a node.

5, the multifunctional electronic switch of household electrical appliance according to claim 1 is characterized in that, said sub-ultrasonic remote-control frequency selective amplifier is by triode (Q ₃) and resistance (R ₁₂), inductor (L), electric capacity (C ₉) and electric capacity (C ₈) constitute resistance (R ₁₂) and electric capacity (C ₈) meet triode (Q ₃) base stage, electric capacity (C ₉) and inductor (L) connect transistor collector, grounded emitter connects the resistance (R of its base stage ₁₂) be biasing resistance, be triode (Q by it ₃) set up a suitable working point, connect the inductor (L) and the capacitor (C of its collector electrode ₉) form antiresonant circuit, determine its resonance in inferior supersonic frequency by its parameter, can set two different frequencies, two kinds of different loads in the control room.The signal of front stage circuits is through electric capacity (C ₈) be input to the corresponding levels, have only the signal of inferior supersonic frequency could be by triode (Q ₃) effectively amplify, on collector electrode, obtain amplifying signal, by the capacitor (C that is connected collector electrode ₁₁) deliver to the next stage circuit.

6, the multifunctional electronic switch of household electrical appliance according to claim 1 is characterized in that, said detection inverting amplifier is by triode (Q ₄) and electric capacity (C ₁₁), diode (D ₃), resistance (R ₁₄) constitute electric capacity (C ₁₁), diode (D ₃) meet triode (Q ₄) base stage, resistance (R ₁₄) an end ground connection, another termination triode (Q ₄) collector electrode and resistance (R ₁₅), emitter connects power supply (Vcc), connects the electric capacity (C of base stage ₁₁) another termination triode (Q ₃) collector electrode, voltage signal is through resistance (R ₁₅) and electrochemical capacitor (C ₁₂) integrating circuit formed, at electric capacity (C ₁₂) two ends obtain integral voltage, through differential capacitance (C ₁₄) and (C ₁₅) couple a signal to bistable trigger-action circuit.

7, the multifunctional electronic switch of household electrical appliance according to claim 1 is characterized in that, said flip and flop generator is by triode (Q ₅), (Q ₆) and resistance (R ₁₆) (R ₁₇), (R ₁₈), (R ₁₉), (R ₂₀), (R ₂₁), (R ₂₂), (R ₂₃), electric capacity (C ₁₃), (C ₁₄), (C ₁₅) and diode (D ₄), (D ₅), light-emitting diode (D ₆) constitute triode (Q ₅) base stage and resistance (R ₂₁), electric capacity (C ₁₃) and diode (D ₄) anodal linking to each other, and through resistance (R ₂₁) and resistance (R ₂₀), (R ₂₂), (R ₂₃), (R ₁₉) and triode (Q ₆) collector electrode links to each other resistance (R ₂₀) through light-emitting diode (D ₆) meet power supply (Vcc), resistance (R ₁₉) another termination power (Vcc), diode (D ₅) negative pole and resistance (R ₂₃) through electrochemical capacitor (C ₁₅), (C ₁₂) ground connection, triode (Q ₅) collector electrode connecting resistance (R ₁₆), (R ₁₇) and resistance (R ₁₈), and through resistance (R ₁₈) meet triode (Q ₆) base stage and diode (D ₅) positive pole, grounded emitter, triode (Q ₅) diode (D on the base stage ₄) meet electrochemical capacitor (C ₁₄) and resistance (R ₁₇), triode (Q ₆) collector electrode is through resistance (R ₁₉) connecing power supply (Vcc), grounded emitter it is to be noted, and the peripheral cell of this trigger becomes two and occurs, and parameter equates, position symmetry, wherein resistance (R ₁₆) and (R ₁₉) be respectively triode (Q ₅), (Q ₆) collector load resistor, resistance (R ₁₈) and (R ₂₁) be respectively triode (Q ₅) and triode (Q ₆) cross-couplings resistance between collector electrode and the base stage, resistance (R ₁₇) and (R ₂₃) be respectively triode (Q ₅), (Q ₆) differential resistance, diode (D ₄) and (D ₅) to divide be triode (Q in addition ₅) and (Q ₆) the pulse steering diode, electrochemical capacitor (C ₁₄) and resistance (R ₁₇) and diode (D ₄) composition triode (Q ₅) trigger impulse differential circuit and input circuit; Electrochemical capacitor (C ₁₅), resistance (R ₂₃) and diode (D ₅) composition triode (Q ₆) trigger impulse differential circuit and input circuit, light-emitting diode (D ₆) and resistance (R ₂₀) series connection, be connected power supply (Vcc) and triode (Q ₆) between the collector electrode.