CN2446654Y - Electricity saving device for standing electrical appliance - Google Patents

Abstract

The utility model relates to an electricity saving device for standing domestic electric appliances, which is matched with a remote control domestic electric appliance to use. A starting-up circuit is composed of an infrared receiving head HD and a D trigger IC4.1. A shutdown circuit is composed of a Schmitt trigger lap-jointed by a resistor R1, an optical coupler IC2 and an integrated circuit IC3. An output circuit is composed of a D trigger IC4.2 and a relay K. After the receiving head HD receives an operating instruction of a remote controller, the relay K in the output circuit acts; a contact is closed; the domestic electric appliance obtains electricity to work. When the domestic electric appliance enters a standing state, the shutdown circuit makes the relay K released; the domestic electric appliance is completely broken; the standing power consumption is reduced to 1W more or less from 5-20W. The utility model realizes the electricity saving function, and makes operation become convenient and simple.

Description

The family appliance standby electricity-saving appliance

The utility model relates to a kind of and the matching used family appliance standby electricity-saving appliance of remote control home appliance.

Household electrical appliance such as television set with distant control function, after remote controller operation shutdown, television set just is in holding state.Power consumption under this operating state is different because of machine, and 5-20W is generally arranged.If want complete power cutoff, then must the operating power switch, and considerable household electrical appliances user is arranged, because of disliking trouble, when stopping using household electrical appliances, only with remote controller shutdown, not operating power switch, this wastes with regard to the stand-by power consumption that makes 5-20W, simultaneously, influences the life-span of household electrical appliances to a certain extent.Under holding state, if having thunder and lightning intrusion or power supply misphase that 380V voltage is introduced, also may cause household electrical appliances to damage, this is of common occurrence in safeguarding practice.A kind of can must being favourably welcome for the product that the household electrical appliances user eliminates troublesome poeration.Consult domestic household appliances, electrical type, computer relevant newspaper and periodical material and do not see that the relevant art report is arranged.A kind of infrared remote control switch is arranged on the market at present, and available any domestic electrical equipment remote controller is controlled its switch, and promptly the remote controller key is once put ON state, operates certain key more once, puts OFF state.This switch only is applicable to electrical equipment such as electric light, to the bright electrical equipment of family for example television set etc. then be not suitable for, television set is behind electric power starting, also to change platform, tuning amount etc., each operation all can make above-mentioned infrared switch state change, and obviously can not be used to control the various all kinds of household electrical appliance of function such as television set.

The purpose of this utility model is released the former domestic electrical equipment remote controller of a kind of usefulness (being unworthy of dedicated remote control) exactly just can realize completely open and close and other all functions, easy to operate, the stand-by energy-saving product that guarantees safety.

The utility model family appliance standby electricity-saving appliance (hereinafter to be referred as " electricity-saving appliance ") is made up of functional units such as power circuit, boot-strap circuit, shutdown circuit and output circuits.During energising work, the household electrical appliances that switch is put closure state are connected on the output of electricity-saving appliance, and the remote controller of any household electrical appliances all can carry out straighforward operation to electricity-saving appliance.The infrared receiving terminal of electricity-saving appliance is powered to household electrical appliances through output circuit after receiving the operational order of arbitrary button on the remote controller, and by follow-up straighforward operation, household electrical appliances can normally use.Behind the remote-control closedown, household electrical appliances enter holding state, and electricity-saving appliance cuts off the household electrical appliances power supply immediately.The electricity-saving appliance oneself power consumption has the function of holding state saves energy less than 1W at this moment, and household electrical appliances and power supply thoroughly disconnect simultaneously, and over-voltage protection element is housed again in the electricity-saving appliance, thereby has eliminated power failure or long-term the energising to the threat of household electrical appliances safety.

Below in conjunction with accompanying drawing, the function and the principle of electricity-saving appliance is further described.

Accompanying drawing is an electrical schematic diagram.Frame of broken lines 1 is a power unit among the figure, after the input of alternating current 220V power supply, carries out overcurrent and overvoltage protection through fuse FU and piezo-resistance Rv; Transformer T, diode rectifier bridge D1-D4, capacitor C1, C2 and three terminal regulator IC1 (model is LM7809) form typical D.C. regulated power supply and power to complete machine.Frame of broken lines 2 is start control circuits, and HD is a kind of general infrared receiving terminal in the frame, and the remote signal that various remote controllers can be sent receives and be demodulated to pulse train; IC4.1 is a d type flip flop in the integrated circuit CD4013 double D trigger, the D termination high level " 1 " of this trigger, S termination low level " 0 "; The remote controller button, the pulse train that infrared receiving terminal receives and demodulates, when being added to the CP end of trigger IC4.1, the high level of D end promptly is sent to output Q, forms the start control wave at the Q end.The live part of this pulse signal is its rising front, and it goes output circuit control start on the one hand, send the zero clearing R end of trigger IC4.1 on the other hand through diode D5, makes the Q end recover low level, for start next time is prepared.C3 and R0 are energising zero setting elements, guarantee electricity-saving appliance when rigidly connecting energize, and starting-up signal does not appear in the Q of the IC4.1 of trigger end.Frame of broken lines 3 is shutdown circuits, wherein D6-D8 and R1 are the load current detecting elements, IC2 is photoelectrical coupler P621, IC3 is the NE555 time-base circuit, it and R3, R4 form Schmidt trigger, select R3＞2R4, and then the R of IC3, S terminal voltage are less than 1/3rd supply voltage, so when static, the Q output is a high level.During the household electrical appliances operate as normal, load current is relatively large, and it is also bigger to be connected on the resistance R 1 in the load circuit pressure drop, diode has electric current to form in certain half period of power supply among the optocoupler IC2, triode conducting in the optocoupler, and to capacitor C4 charging, charge value can be near DC power supply voltage.Voltage on the C4 is added in R and the S end of IC3, and numerical value is obviously greater than 2/3rds of IC3 supply voltage, and therefore, when household electrical appliances entered operate as normal, the Q of IC3NE555 end promptly changed low level in level wink.D6-D8 has shunting and protective effect to resistance R 1; Resistance R 2 is used for limiting the electric current that flows through the optocoupler diode.When remote controller makes household electrical appliances enter holding state, load current obviously reduces in the resistance R 1, two ends pressure drop is corresponding reduces for it, diode and triode all end in the optocoupler, capacitor C4 is by resistance R 4 discharge, press to less than three of IC3 supply voltage/for the moment when C4 powers on, the Q of NE555 end level by low hand over high, produce a rising edge of a pulse, send output circuit control shutdown through capacitor C5.Frame of broken lines 4 is output circuits, and wherein IC4.2 is another d type flip flop in the integrated circuit CD4013 double D trigger, and it and IC4.1 are integrated circuits.Identical with IC4.1, the D termination high level " 1 " of this trigger, S termination low level " 0 ".If the Q of IC4.1 end has the power-on pulse signal to deliver to the CP end of this trigger, then the high level of D end is sent to the Q end, and through resistance R 5, triode BG, it is electric that the relay K coil is got, the closing of contact, and electricity-saving appliance output has electricity, and household electrical appliances are mutually deserved.Though the operation of any button on the remote controller, all may be by infrared receiving terminal HD receiving demodulation, and the CP that rising edge of a pulse is delivered to IC4.2 through IC4.1 holds, but because of the D of IC4.2 holds affixed high level " 1 ", these operations can not change the Q end state of IC4.2, and it is constant that relay K is stabilized in attracting state.When remote controller makes household electrical appliances enter holding state, as previously mentioned, the Q end of IC3 forms rising edge of a pulse, the zero clearing R that is added in IC4.2 through C5 holds, the Q end level step-down of IC4.2, and relay discharges, the contact disconnects, household electrical appliances break away from power supply fully, only are left the very little electricity-saving appliance of power consumption in work, have reached economize on electricity and purpose of safety.Capacitor C5 can be through resistance R 6 chargings, and after charging finished, the R end of IC4.2 became low level, prepares to meet remote-controlled start-up next time.

In sum, use this electricity-saving appliance, just can comprise that all operations of open and close machine carries out remote control household electrical appliances by remote controller, simultaneously, household electrical appliances timing shutdown, no signal all can make household electrical appliances break away from power supply fully after shutting down automatically, and this just greatly facilitates using and operating of user.

The utlity model has following good effect and advantage

1, saves energy.The power consumption of household electrical appliances under holding state is reduced to about 1W by original 5-20W.

2, easy to operate.Can realize to the open and close machine of household electrical appliances and all other operation that with remote controller this is to old handicapped person's particularly suitable, in addition under special circumstances, lie on a bed before for example sleeping and can carry out power-off operation.

3, improved the fail safe that household electrical appliances use.Electricity-saving appliance has overcurrent and overvoltage protection, and after entering holding state, household electrical appliances have broken away from power supply fully, have increased one deck safety curtain to household electrical appliances.

Realize the utility model, electricity-saving appliance can be made into the mesa structure of metal-back, to improve the Electro Magnetic Compatibility index.The front makes panel, mark product type title and the key technical indexes, and infrared receiving terminal is installed, and add Red lightscreening plate before the HD infrared receiving terminal, prevent interference of stray light.Fuse (seat) FU and 220V accessory power outlet are installed in the back, for the tame plug of pegging graft.Casing inside directly is fixed on the bottom with power transformer T, and all the other elements are installed in the printed board.Because of the sample resistance R1 that directly links to each other with civil power is arranged in the printed board, so printed board should vertical fixing, and with keep suitable space length all around, with plan safety.

Claims (1)

1. A kind of family appliance standby electricity-saving appliance is characterized in that: infrared receiving terminal (HD), integrated circuit CD4013 elements such as (IC4.1) constitute boot-strap circuit; Sample resistance (R1), photoelectrical coupler (IC2), integrated circuit elements such as (IC3) constitute shutdown circuit; Integrated circuit CD4013 (IC4.2), relay elements such as (K) constitute output circuit; Boot-strap circuit, shutdown circuit, output circuit and D.C. regulated power supply mutual group become household electrical appliances standby saver complete machine.

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