CN2154430Y - Time protector for window air conditioner of household - Google Patents

Abstract

The utility model relates to a timing protector for household window air conditioners, which is composed of a timing switching on/off circuit, a time delay protective system, a power supply circuit, etc. The time delay protection system is composed of a bistable trigger, a discharging circuit, a monostable time delay protection circuit and a relay. The utility model has multiple functions and can accomplish timing switching-on and timing switching-off to air conditioners, the timing time can be started or shut at any time, and the utility model has the functions of effective manual operation and time delay protection of stopping and supplying electricity. The utility model can also be widely used on other domestic electric appliances such as electric fans, electric rice cookers, electric blankets and other situations need timing switching on/off.

Description

Time protector for window air conditioner of household

The utility model relates to regularly protector of a kind of family expenses window air conditioner.

The various family expenses window air conditioner major part of Chu Shouing all is not provided with timing means and delay protection circuit in the market, and this not only brings inconvenience to user's use operation, and to totally unfavorable influence is arranged in service life of domestic air conditioning.From user's operating aspect, because can not timing shutdown, be frozen when often causing the user to use night and wake up and cause flu, not only influence healthyly, and waste a large amount of electric energy; And the user just thinks to open air-conditioning in advance so that the back family of going home has a relatively adapt circumstance before leaving offices as wanting, existing domestic air conditioner can not provide the convenience of this respect.From the aspect in service life of domestic air conditioning, because cooler compressor does not generally allow in the short period of time (for example in 3 minutes) repeated priming, so producer is generally all specially indicated this in specification or on the casing.But this can not be avoided the generation of above-mentioned situation fully.For example, after in use having a power failure, domestic air conditioner recovers to send electricity immediately, or the maloperation that causes or the like of starting shooting immediately again after artificial (especially children) shutdown, all can produce very adverse influence to the service life of domestic air conditioner.And; some household electrical appliance (as refrigerator) are gone up employed delay protection circuit at present; also should not be used on the domestic air conditioning; this is because this class circuit can only play the delay protection effect to electrical equipment when normal the power failure; with interior restoring electricity electrical equipment is opened at the delay time that is no more than regulation after promptly having a power failure, but it can not (i.e. in the use process start shooting again in the time at the delay protection of regulation in the shutdown back) implement protection effectively to electrical equipment under the maloperation situation.In addition, the mesh power of this class circuit smaller (generally being no more than 200W), and for the bigger electrical equipment of the such power ratio of domestic air conditioning, also can't use.In addition, the family expenses window air conditioner is a kind of household electrical appliance of frequent operation, and its installation site is generally all than higher, so also inconvenient to normal machine open/close.

Just at the above-mentioned present situation that has domestic air conditioner now; the utility model provides a kind of family expenses window air conditioner timing protector with multiple function; both can set in advance the machine open/close time; can guarantee effectively again having a power failure or the shutdown back is to send electricity or the maloperation all can't the repeated priming air-conditioner again in the time at the delay protection of defined; thereby both handled easily greatly; can implement protection effectively to air-conditioner again, but also can arbitrarily be placed in the position of suitable operation.

The purpose of this utility model realizes by following measure: the utility model is by the timing opening/closing system; compositions such as delay protection system and power circuit; it is characterized in that: the delay protection system is by flip and flop generator; discharge circuit; compositions such as monostable delay protection circuit and relay; discharge circuit is by triode and commissure electric capacity; charge and discharge capacitance; compositions such as the charging and discharging circuit resistance of commissure capacitance discharges loop resistance and charge and discharge capacitance; an output of flip and flop generator is through the base stage of commissure electric capacity commissure to triode; the collector and emitter of triode is in parallel with charging capacitor, and another output of flip and flop generator and the strong reset terminal of monostable delay protection circuit join.

In order after power failure, to accelerate the discharge process of charge and discharge capacitance, serial connection one diode between charge and discharge capacitance and power supply.

The utlity model has the distinguishing feature of following several respects:

1, time preset key and charactron time showing are set, convenient directly perceived, the user can arbitrarily change 9 class timings of 1-9 hour, can realize timing start-up and timing shutdown;

2, be provided with and timely lock/remove key, can start at any time and the timeing closing time;

3, be provided with out/stop key, and designed manually-operated and stopped sending electric delay protection circuit;

4, the utility model also can be widely used in other household electrical appliance except that adapted family expenses window air conditioner, needs the regularly occasion of machine open/close as electric fan, electric cooker, electric blanket etc.

Accompanying drawing has provided an embodiment of the present utility model.

The drawing of accompanying drawing is described as follows:

Fig. 1: guidance panel schematic diagram of the present utility model.

Fig. 2: frame principle figure of the present utility model.

Fig. 3: delay protection circuit system schematic diagram of the present utility model.

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

As figure, the utility model is made up of timing opening/closing system, delay protection system and power circuit three parts.Wherein, flip and flop generator IC1; RC oscillator divider IC2; decade frequency divider IC3; forward-backward counter IC4; decoder IC5; digital display tube (2); send electric nulling circuit B; functional select switch K; nulling circuit A; Schmidt trigger E forms regularly opening/closing system jointly; flip and flop generator IC6; discharge circuit FD; monostable delay protection IC circuit 7 and relay J are formed the delay protection system jointly; discharge circuit FD is by triode BG and commissure capacitor C 1; charge and discharge capacitance C2; the discharge loop resistance R 1 of commissure capacitor C 1 and the compositions such as charging and discharging circuit resistance R 2 of charge and discharge capacitance C2; the output Q of flip and flop generator IC6 is through the base stage of commissure capacitor C 1 commissure to triode BG; the collector and emitter of triode BG is in parallel with charge and discharge capacitance C2; the strong reset terminal F of another output Q of flip and flop generator IC6 and monostable delay protection IC circuit 7 joins, serial connection discharge diode D between charge and discharge capacitance and power supply.220 volts of alternating currents of civil power through plug M, N the input, behind transformer transformation and current rectifying and wave filtering circuit Z rectifying and wave-filtering as system power supply.(7) be regularly preset key; (8) for timely locking/remove key; (9) for opening/stop key; (1) be power switch, for timely locking indicator lamp, (4) are for opening/halt indicator (3); (5) be accessory power outlet (connecing air-conditioner); (6) be functional select switch, i.e. selector switch K among Fig. 2, the upper-lower position of its switch correspond respectively to and regularly open and regularly close two gears.Two gears are opened and regularly closed to P1 among Fig. 3, P2 the joint timing of connection function selector switch K respectively, the P3 joint with send electric nulling circuit B to join, accept to send electric zero setting signal.Relay J is controlled opening/shutting down of air-conditioner.

Operation principle of the present utility model is as follows: by flip and flop generator IC1 control RC oscillator divider IC2 and decade frequency divider IC3.When the Q of IC1 end was high potential, IC2, IC3 quit work, frequency dividing circuit zero setting, and IC3 exports high potential, for the IC4 plus coujnt satisfies condition.IC4 is a decimal system reversible counter, and its output state shows count status by decoder IC5 decoding by charactron (2).Regularly preset key (7) is whenever pressed once, Schmidt trigger E just upset once, its output pulse enter counter IC4+end, count status is shown by charactron (2), shows that numeral is 0-9.Now set 1 hour to 9 hours totally nine class correspond respectively to the demonstration numeral 1-9 of charactron, and 0 is halted state.Press key (8), the IC1 upset, its Q end is zero potential, and IC2, IC3 start working, and 1 pulse of IC3 output in per 1 hour, its output pulse enter IC4 and carry out the subtraction counting.Suppose that charactron showed originally that numeral was 5, just setting timing is 5 hours, and IC3 will export 5 pulses, and just to make counter IC4 be nought state, promptly needs 5 hours.When IC4 was nought state, nulling circuit A just exported high potential.If functional select switch (6) is dialled and opened gear to timing, its output one tunnel is given IC1 zero setting, makes IC2, IC3 quit work, and one the tunnel starts IC6, monostable delay protection IC circuit 7 work.Time-delay is after stipulate guard time (this example is 3 minutes), and air-conditioner work is connected in the relay J adhesive; When functional select switch is dialled when the position is closed in timing, nulling circuit A is with IC1, IC6 zero setting simultaneously, and IC7 quits work, and relay J discharges, and air-conditioner quits work.Send the effect of electric nulling circuit B to be: when sending electricity, send electric nulling circuit B to send the quenching pulse signal, make flip and flop generator IC1, IC6 zero setting, system resets, and is in the armed state of accepting the switching manipulation instruction.

Below in conjunction with Fig. 3 delay protection system principle of the present utility model is done an explanation: IC6 zero setting when sending electricity, its Q end is electronegative potential, locking IC7 can not work; Q is a high potential, to triode BG moment conducting, gives capacitor C 2 discharges through capacitor C 1 commissure.Because of also not charging of C2, so discharge ineffective.Press out/stop key (9) after sending electricity, the IC6 upset, Q becomes electronegative potential, capacitor C 1 is discharged to ground through resistance R 1, for turn-on transistor BG is ready next time, Q becomes high potential, and IC7 is strong, and reset terminal F obtains high potential, treat that capacitor C 2 arrives certain hour (about 3 minutes) through resistance R 2, power source charges, IC7 promptly exports high potential, relay J adhesive, its contact control air-conditioner start, light emitting diode (4) is bright, the indication start; As button (9) again, IC6 restores, and light emitting diode (4) goes out, and expression is shut down, and Q uprises current potential, gives capacitor C 2 discharges through capacitor C 1 commissure to triode BG moment conducting, in order to starting monostable delay protection IC circuit 7 usefulness the second time.When P2 brings out existing pulse signal, timing shutdown can be reached, when P1 brings out existing pulse signal, timing start-up can be realized.

The utility model at first pushes functional select switch (6) in use needs the position, connects power switch again, presses regularly preset key (7) then, whenever changes once by a charactron numeral, till the numeral of needs occurs.Press and timely lock/remove key (8), if indicator lamp (3) flashes, the expression timing circuit is started working.If what functional select switch was selected is regularly to open gear, press out/stop key (9) invalid, have only when undetermined the time to starting air-conditioner work; If what select is regularly to close gear, press out/stop key (9), indicator lamp (4) is bright, and timing is to promptly stopping air-conditioner work automatically.When sending electricity or maloperation again, automatic time delay can be started air-conditioner work after about 3 minutes because of having a power failure.

Claims (2)

1; a kind of family expenses window air conditioner is protector regularly; by the timing opening/closing system; compositions such as delay protection system and power circuit; it is characterized in that: the delay protection system is by bistable circuit IC6; discharge circuit FD; monostable delay protection IC circuit 7 and relay J are formed; discharge circuit FD is by triode BG; commissure capacitor C 1; charge and discharge capacitance C2; the discharge loop resistance R 1 of commissure capacitor C 1 and the compositions such as charging and discharging circuit resistance R 2 of charge and discharge capacitance C2; the output Q of bistable circuit IC6 is through the base stage of commissure capacitor C 1 commissure to triode BG; the collector and emitter of triode BG is in parallel with charge and discharge capacitance C2, the output of bistable circuit IC6 Join with the strong reset terminal F of monostable delay protection IC circuit 7.

2, family expenses window air conditioner timing protector according to claim 1 is characterized in that: be serially connected with a diode D between charge and discharge capacitance C2 and power supply.

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