CN201725234U

CN201725234U - Low-power circuit for household appliances

Info

Publication number: CN201725234U
Application number: CN2010202172508U
Authority: CN
Inventors: 杨桂福
Original assignee: Wuxi Hodgen Technology Co Ltd
Current assignee: Wuxi Hodgen Technology Co Ltd
Priority date: 2010-06-07
Filing date: 2010-06-07
Publication date: 2011-01-26
Anticipated expiration: 2020-06-07

Abstract

The utility model discloses a low-power circuit for household appliances. The low-power circuit comprises a relay, a transformer, a current-limiting resistor R1, a divider resistor R2, an optical coupler, a NOT gate and a select switch. The utility model can overcome defects of complex operation, large power consumption and the like in the prior art, and realize the advantages of simple operation and small power consumption.

Description

A kind of household electrical appliance low consumption circuit

Technical field

The utility model relates to energy-saving circuit, particularly, relates to a kind of household electrical appliance low consumption circuit.

Background technology

At present, in energy-saving circuit, household electrical appliance (as the family expenses program controller) are when holding state, and great majority are realized with modes such as closing demonstration by cutting off load output.

But, do not turn off the user under the situation of power supply, because program controller still is in "on" position, though cut off load output, most of circuit is still in running order, has produced stand-by power consumption inevitably.

In sum, in realizing process of the present utility model, the inventor finds to exist at least in the prior art following defective:

(1) complicated operation: household electrical appliance need to realize with the mode of cutting out demonstration by cutting off load output when holding state;

(2) power consumption is big: when household electrical appliance still are in "on" position, even cut off load output, but because most of circuit is still in running order, produce stand-by power consumption unavoidably.

Summary of the invention

The purpose of this utility model is, at the problems referred to above, proposes a kind of household electrical appliance low consumption circuit, to realize simple to operate and the little advantage of power consumption.

For achieving the above object, the technical solution adopted in the utility model is: a kind of household electrical appliance low consumption circuit, comprise relay, transformer, current-limiting resistance R1, divider resistance R2, optocoupler, not gate and selector switch, wherein: the collector of triode connects direct supply through divider resistance R2 in the described optocoupler, grounded emitter; The anode of light emitting diode is selected first stiff end of switch through current-limiting resistance R1 selecting in the optocoupler, and negative electrode is connected with second link of transformer; The control end of described selector switch is connected with first link of transformer, and the control end of contact switch is connected with first link of transformer in the described relay, and stiff end is connected with the stiff end of selector switch; First of coil connects the termination direct supply in the relay, and the input end of the second link Sheffer stroke gate connects, and the output terminal of not gate is connected with the collector of triode in the optocoupler.

Further, described divider resistance R2 is away from the one termination+5V direct supply of optocoupler, and first of coil connects termination+12V direct supply in the described relay.

The household electrical appliance low consumption circuit of each embodiment of the utility model owing to comprise relay, transformer, current-limiting resistance R1, divider resistance R2, optocoupler, not gate and selector switch, can form relay control unit and three end interlocking button detecting units; Thereby can overcome complicated operation and the big defective of power consumption in the prior art, to realize simple to operate and the little advantage of power consumption.

Other features and advantages of the utility model will be set forth in the following description, and, partly from instructions, become apparent, perhaps understand by implementing the utility model.The purpose of this utility model and other advantages can realize and obtain by specifically noted structure in the instructions of being write, claims and accompanying drawing.

Below by drawings and Examples, the technical solution of the utility model is described in further detail.

Description of drawings

Accompanying drawing is used to provide further understanding of the present utility model, and constitutes the part of instructions, is used from explanation the utility model with embodiment one of the present utility model, does not constitute restriction of the present utility model.In the accompanying drawings:

Fig. 1 is according to the principle of work synoptic diagram of the utility model household electrical appliance with low consumption circuit.

Embodiment

Below in conjunction with accompanying drawing preferred embodiment of the present utility model is described, should be appreciated that preferred embodiment described herein only is used for description and interpretation the utility model, and be not used in qualification the utility model.

According to the utility model embodiment, provide a kind of household electrical appliance low consumption circuit.As shown in Figure 1, present embodiment comprises relay (being RELAY-SPST), transformer (being TRANS), current-limiting resistance R1, divider resistance R2, optocoupler (being OPTOISO), not gate (NOT) and selector switch (being SP SPDT), wherein: the collector of triode in the optocoupler (being the MCU-I/O end) connects direct supply through divider resistance R2, grounded emitter; The anode of light emitting diode is selected first stiff end of switch through current-limiting resistance R1 selecting in the optocoupler, and negative electrode is connected with second link (being the AC-N end) of transformer; The control end of selector switch is connected with first link of transformer, and the control end of contact switch is connected with first link of transformer in the relay, and stiff end (being the AC-L end) is connected with the stiff end of selector switch; First of coil connects the termination direct supply in the relay, and the input end of the second link Sheffer stroke gate connects, and the output terminal of not gate is connected with the collector of triode in the optocoupler.

Further, in the above-described embodiments, above-mentioned divider resistance R2 is away from the one termination+5V direct supply of optocoupler, and first of coil connects termination+12V direct supply in the relay.

As seen, in the above-described embodiments, comprise relay control unit and three end interlocking button detecting units, utilize at the first utmost point of transformer and be connected in series three end interlock switchs, cut off program controller power supply purpose in the time of can reaching standby, to reduce stand-by power consumption; Owing to cut off the power supply of program controller, thereby really realized under the situation that does not plug the household electrical appliance power supply, realizing almost not having the power consumption standby, but do not influence the convenience (needn't frequently plug power supply) of user's operation, thereby improved the ease of Use of using electricity wisely.

The principle of work of above-mentioned three end interlocking buttons is specific as follows: the profile of three end interlocking buttons is equivalent to a button, but pin has three, and wherein two is normally closed; When button was pressed, normally closed contact disconnected, the normally opened contact closure, and button discharges back normally closed contact closure, and normally opened contact disconnects.

In Fig. 1, the dominant mechanism of above-mentioned end interlocking button work is: when program controller three end interlocking buttons are not pressed since primary AC-L end not electric, whole program controller is in power failure state fully; When three end interlocking buttons were pressed, primary AC-L held electricly, and the stable back of program controller MCU initialization is by the reverser pilot relay adhesive of built-in Darlington transistor; After the relay adhesive, no longer need three end interlocking buttons to power to transformer, can discharge three end interlocking buttons this moment.

Here, the state of the input three end interlocking buttons that program controller when work can be by the optocoupler feedback can detect the square-wave signal that frequency is 50Hz when not pressing, press back square wave blackout, and detecting is the high level that continues, thereby judges it is off signal; After detecting off signal, MCU can discharge relay, thereby cuts off the continued power of sequencer, and when three end interlocking buttons also discharged, whole program controller thoroughly cut off the power supply, and stand-by power consumption almost can be ignored.

The household electrical appliance low consumption circuit of the foregoing description can increase in most of family expenses program controller, and with low cost, and software processes is also comparatively simple; Importantly because big portion artificially is accustomed to, and household electrical appliances can not pull out power supply when on the shelf, the permanent stand-by power consumption that so produces is surprising; These household electrical appliance can solve this difficult problem well with low consumption circuit, and do not reduce the convenience of operation, are worth of widely use very much.

In sum, the household electrical appliance low consumption circuit of each embodiment of the utility model, owing to comprise relay, transformer, current-limiting resistance R1, divider resistance R2, optocoupler, not gate and selector switch, can form relay control unit and three end interlocking button detecting units; Thereby can overcome complicated operation and the big defective of power consumption in the prior art, to realize simple to operate and the little advantage of power consumption.

It should be noted that at last: the above only is preferred embodiment of the present utility model, be not limited to the utility model, although the utility model is had been described in detail with reference to previous embodiment, for a person skilled in the art, it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement.All within spirit of the present utility model and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.

Claims

1. a household electrical appliance low consumption circuit is characterized in that, comprises relay, transformer, current-limiting resistance R1, divider resistance R2, optocoupler, not gate and selector switch, wherein:

The collector of triode connects direct supply through divider resistance R2 in the described optocoupler, grounded emitter; The anode of light emitting diode is selected first stiff end of switch through current-limiting resistance R1 selecting in the optocoupler, and negative electrode is connected with second link of transformer;

The control end of described selector switch is connected with first link of transformer, and the control end of contact switch is connected with first link of transformer in the described relay, and stiff end is connected with the stiff end of selector switch; First of coil connects the termination direct supply in the relay, and the input end of the second link Sheffer stroke gate connects, and the output terminal of not gate is connected with the collector of triode in the optocoupler.

2. household electrical appliance low consumption circuit according to claim 1 is characterized in that, described divider resistance R2 is away from the one termination+5V direct supply of optocoupler, and first of coil connects termination+12V direct supply in the described relay.