CN205670240U - Startup and shutdown circuit and household appliance - Google Patents
Startup and shutdown circuit and household appliance Download PDFInfo
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- CN205670240U CN205670240U CN201620552748.7U CN201620552748U CN205670240U CN 205670240 U CN205670240 U CN 205670240U CN 201620552748 U CN201620552748 U CN 201620552748U CN 205670240 U CN205670240 U CN 205670240U
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- 238000001514 detection method Methods 0.000 claims abstract description 22
- 230000005611 electricity Effects 0.000 claims description 41
- 230000005622 photoelectricity Effects 0.000 claims 1
- 238000000034 method Methods 0.000 description 14
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000002045 lasting effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000005619 thermoelectricity Effects 0.000 description 1
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Abstract
The utility model discloses a switching on and shutting down circuit and domestic appliance, the switching on and shutting down circuit includes: the processor is used for receiving the switch signal detected by the key detection circuit and triggering the strong current control circuit to control the connection or disconnection of the electrical equipment and the strong current according to the switch signal. Therefore, the utility model discloses can realize when electrical equipment is in the shutdown state, the disconnection of being connected between forceful electric power and the electrical equipment to domestic appliance's standby zero-power consumption has been realized.
Description
Technical field
This utility model relates to household electrical appliance technical field, in particular, relates to a kind of on/off circuit and household electric
Device.
Background technology
Stand-by power consumption refers to machine not in operating condition, but the power consumption produced in the case of connecing electricity.Illustrate,
During closing television, the forceful electric power power supply of TV may not be closed, i.e. power supply is being powered for TV always, the merit that TV produces at this moment
Consumption is stand-by power consumption.Calculating by one day standby 18 hours, the power consumption having 50W is being consumed by a TV for one day, power consumption
Measure nearly 1 degree electricity.
Along with expanding economy, the requirement of the stand-by power consumption of household electrical appliance is improved constantly, the most how to provide one by country
It is those skilled in the art's technical problems urgently to be resolved hurrily that kind of on/off circuit realizes the standby zero-power-consumption of household electrical appliance.
Utility model content
In view of this, the open a kind of on/off circuit of this utility model and household electrical appliance, to realize the standby of household electrical appliance
Zero-power.
A kind of on/off circuit, is applied to electric equipment, and described on/off circuit includes: processor, key press detecting circuit
And strong electrical control circuit；
Described processor is connected with described key press detecting circuit and described strong electrical control circuit respectively, and described processor is used for
Receive the switching signal that described key press detecting circuit detects, and trigger described strong electrical control circuit control according to described switching signal
The connection of electric equipment processed and forceful electric power or disconnection；
Described key press detecting circuit includes: forceful electric power switch, forceful electric power detection electronic circuit, strong and weak electricity isolating device and weak electricity measuring
Electronic circuit；
The normally opened stationary contact of described forceful electric power switch is for connecting the live wire of described forceful electric power, and the movable contact of described forceful electric power switch is even
Connecing described strong electrical control circuit, the normally closed stationary contact of described forceful electric power switch connects the input of described forceful electric power detection electronic circuit, institute
State the outfan of forceful electric power detection electronic circuit by the described strong and weak electricity isolating device being sequentially connected with and described weak electricity measuring electronic circuit
Connect described processor.
Preferably, described strong and weak electricity isolating device includes: photoelectrical coupler；
The anode tap of the light emitting diode of described photoelectrical coupler connects the outfan of described forceful electric power detection electronic circuit, described
The cathode terminal of the light emitting diode of photoelectrical coupler connects the zero line of described forceful electric power, the phototriode of described photoelectrical coupler
Emitter terminal connects earth terminal, and the collector terminal of described phototriode connects described process by described weak electricity measuring electronic circuit
Device.
Preferably, described forceful electric power detection electronic circuit includes: the first current-limiting resistance, the first electric capacity and the first diode；
One end of described first current-limiting resistance connects described normally closed stationary contact as the input of described forceful electric power detection electronic circuit
Point, the other end of described first current-limiting resistance connects the anode tap of described light emitting diode；
Described first electric capacity is connected in anode tap and the cathode terminal of described light emitting diode of described light emitting diode in parallel；
Described first diode reverse is connected in the anode tap of described light emitting diode and described light emitting diode in parallel
Cathode terminal.
Preferably, described weak electricity measuring electronic circuit includes: pull-up resistor, the second current-limiting resistance and the second electric capacity；
One end of described pull-up resistor connects the power supply of described processor, and the other end of described pull-up resistor passes through institute
State the second current-limiting resistance and connect described processor；
Positive plate described second current-limiting resistance of connection of described second electric capacity and the common port of described processor, described second
The negative plate of electric capacity connects earth terminal.
Preferably, described strong electrical control circuit includes: relay and relay drive circuit；
One end of the normally opened contact of described relay connects the live wire of described forceful electric power, the normally opened contact of described relay another
One end connects motherboard power supply system；
One end of the coil of described relay connects coil power supply, and the other end of the coil of described relay passes through institute
Stating relay drive circuit and connect described processor, described relay drive circuit is for controlling the normally opened contact of described relay
Open or close, to disconnect or to connect the live wire of described forceful electric power and the connection of described electric equipment.
Preferably, described processor is dsp chip.
Preferably, described forceful electric power switch is single-pole double-throw switch (SPDT).
A kind of household electrical appliance, including on/off circuit described above.
From above-mentioned technical scheme it can be seen that the utility model discloses a kind of on/off circuit and household electrical appliance, open
Shutdown circuit includes: processor, and the key press detecting circuit that is connected with this processor respectively and strong electrical control circuit, processor
For receiving the switching signal that key press detecting circuit detects, and trigger strong electrical control circuit control electrical equipment according to this switching signal
The connection of equipment and forceful electric power or disconnection.Therefore, this utility model is capable of when electric equipment is in off-mode, forceful electric power with
The disconnection connected between electric equipment, it is achieved thereby that the standby zero-power-consumption of household electrical appliance.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, the accompanying drawing in describing below is only
It is embodiment of the present utility model, for those of ordinary skill in the art, on the premise of not paying creative work, also
Other accompanying drawing can be obtained according to disclosed accompanying drawing.
Fig. 1 is the circuit diagram of a kind of on/off circuit disclosed in this utility model embodiment.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of this utility model rather than whole
Embodiment.Based on the embodiment in this utility model, those of ordinary skill in the art are not under making creative work premise
The every other embodiment obtained, broadly falls into the scope of this utility model protection.
This utility model embodiment discloses a kind of on/off circuit and household electrical appliance, to realize standby the zero of household electrical appliance
Power consumption.
Seeing Fig. 1, the circuit diagram of a kind of on/off circuit disclosed in this utility model embodiment, this on/off circuit is applied
In electric equipment, described on/off circuit includes: processor 10, key press detecting circuit 20 and strong electrical control circuit 30；
Wherein, processor 10 is connected with key press detecting circuit 20 and strong electrical control circuit 30 respectively, and processor 10 is used for connecing
Receive the switching signal that detects of key press detecting circuit 20, and trigger strong electrical control circuit 30 according to this switching signal and control electrical equipment and set
For connection or disconnection with forceful electric power.
In the present embodiment, the Main Function of key press detecting circuit 20 is to start and shutdown electric equipment.Key press detecting circuit
20 include: forceful electric power switch S1, forceful electric power detection electronic circuit 21, strong and weak electricity isolating device 22 and weak electricity measuring electronic circuit 23.
Concrete, the normally opened stationary contact 3 of forceful electric power switch S1 is for connecting the live wire L of forceful electric power, and forceful electric power switchs the movable contact 1 of S1
Connecting strong electrical control circuit 30, the normally closed stationary contact 2 of forceful electric power switch S1 connects the input of forceful electric power detection electronic circuit 21, and forceful electric power is examined
The outfan surveying electronic circuit 21 connects processor by strong and weak electricity isolating device 22 and the weak electricity measuring electronic circuit 23 being sequentially connected with
10。
Wherein, forceful electric power switch S1 is a single-pole double-throw switch (SPDT), and the default conditions of forceful electric power switch S1 are: forceful electric power switch S1
Movable contact 1 turns on normally closed stationary contact 2.When press forceful electric power switch S1 time, forceful electric power switch S1 movable contact 1 by with normally closed stationary contact
2 conductings switch to turn on normally opened stationary contact 3, and when decontroling forceful electric power switch S1, forceful electric power switch S1 recovers again default conditions, the most by force
The movable contact 1 of electric switch S1 switches to turn on normally closed stationary contact 2 by turning on normally opened stationary contact 3 again.
Strong and weak electricity isolating device 22 is used for realizing electrical isolation, i.e. strong and weak electricity isolating device 22 is used for avoiding at forceful electric power inflow
Reason device 10, to cause processor 10 to burn.
It should be noted that during strong and weak electricity isolating device 22 turn-on and turn-off, processor 10 and weak electricity measuring electronic circuit 23
Connectivity port at level change the most accordingly.
Concrete, the default conditions of forceful electric power switch S1 are: the movable contact 1 of forceful electric power switch S1 turns on normally closed stationary contact 2, this
Time, the level signal at the connectivity port of processor 10 and weak electricity measuring electronic circuit 23 is square-wave signal.
When pressing forceful electric power switch S1, the movable contact 1 of forceful electric power switch S1 is switched to normally opened by with the conducting of normally closed stationary contact 2
Stationary contact 3 turns on, and forceful electric power detection electronic circuit 21 is opened a way, and strong and weak electricity isolating device 22 turns off, processor 10 and weak electricity measuring electricity
Level signal at the connectivity port on road 23 is become lasting high level signal by square-wave signal, and this high level signal is examined by light current
Surveying electronic circuit 23 to provide, now, processor 10 judges currently there is the action by forceful electric power switch S1 according to the change of level signal.
In summary, disclosed in this utility model, on/off circuit includes: processor 10, and respectively with this processor 10
The key press detecting circuit 20 connected and strong electrical control circuit 30, processor 10 is for leaving of receiving that key press detecting circuit 20 detects
OFF signal, and control electric equipment and the connection of forceful electric power or disconnection according to this switching signal triggering strong electrical control circuit 30.Therefore,
This utility model is capable of when electric equipment is in off-mode, the disconnection being connected between forceful electric power with electric equipment, thus
Achieve the standby zero-power-consumption of household electrical appliance.
Preferably, processor 10 is DSP (Digital Signal Process, Digital Signal Processing) chip.
Wherein, strong and weak electricity isolating device 22 at least includes: photoelectrical coupler U1；
The anode tap of the light emitting diode of photoelectrical coupler U1 connects the outfan of forceful electric power detection electronic circuit 21, photoelectric coupling
The cathode terminal of the light emitting diode of device U1 connects the zero line N of forceful electric power, and the emitter terminal of the phototriode of photoelectrical coupler U1 is even
Connecing earth terminal, the collector terminal of the phototriode of photoelectrical coupler U1 connects processor 10 by weak electricity measuring electronic circuit 23.
Preferably, forceful electric power detection electronic circuit 21 includes: the first current-limiting resistance R1, the first electric capacity C1 and the first diode D1；
One end of first current-limiting resistance R1 is normally closed quiet as the input connection forceful electric power switch S1 of forceful electric power detection electronic circuit 21
Contact 2, the other end of the first current-limiting resistance R1 connects the anode tap of the light emitting diode of photoelectrical coupler U1, the first current-limiting resistance
R1 flows into the electric current of photoelectrical coupler U1 for limiting.
First electric capacity C1 is connected in anode tap and the cathode terminal of the light emitting diode of photoelectrical coupler U1, the first electric capacity in parallel
C1 act as filtering.
First diode D1 is connected in antiparallel at the anode tap of light emitting diode of photoelectrical coupler U1 and cathode terminal, and
The effect of one diode D1 is protection photoelectrical coupler U1, prevents the overvoltage damage to photoelectrical coupler U1, and at the first electricity
When holding C1 electric discharge generation negative voltage, form current path with the first electric capacity C1.
It should be noted that forceful electric power detection electronic circuit 21 is including, but not limited to circuit disclosed in Fig. 1, disclosed in Fig. 1
Circuit can also increase the resistance being connected in parallel with the first electric capacity C1, to form resistance capaciting absorpting circuit with the first electric capacity C1.
Preferably, weak electricity measuring electronic circuit 23 includes: pull-up resistor R2, the second current-limiting resistance R3 and the second electric capacity C2；
One end of pull-up resistor R2 connects the power supply VCC of processor 10, and the other end of pull-up resistor R2 passes through second
Current-limiting resistance R3 connects processor 10.Pull-up resistor R2 act as: when photoelectrical coupler U1 is not turned on, make processor 10 with
The port of the second current-limiting resistance R3 is high level；When photoelectrical coupler U1 turns on, make processor 10 and the second current-limiting resistance R3
Port be low level.
The positive plate of the second electric capacity C2 connects the second current-limiting resistance R3 and the common port of processor 10, and the second electric capacity C2's is negative
Pole plate connects earth terminal, and the second electric capacity C2 act as filtering.
It should be noted that weak electricity measuring electronic circuit 23 is including, but not limited to circuit disclosed in Fig. 1.
For optimizing above-described embodiment further, strong electrical control circuit 30 includes: relay K 1 and relay drive circuit 31.
One end (pin 4) of the normally opened contact of relay K 1 connects the live wire L of forceful electric power, the normally opened contact of relay K 1 another
One end (pin 3) connects motherboard power supply system 40.Motherboard power supply system 40 is for powering for processor 10.The effect of relay K 1
For: control the turn-on and turn-off between thermoelectricity L and the motherboard power supply system 40 of forceful electric power.
Wherein, motherboard power supply system 40 includes the power supply VCC of processor 10, that is, motherboard power supply system 40
For powering for processor 10.
One end (pin 2) of the coil of relay K 1 connects coil power supply (i.e.+12V shown in figure), relay
The other end (pin 1) of the coil of K1 connects processor 10 by relay drive circuit 31, and relay drive circuit 31 is used for
The normally opened contact controlling relay K 1 opens or closes, to disconnect or to connect the live wire L of forceful electric power and the connection of electric equipment.
It should be noted that the coil power supply power supply of the power supply VCC of processor 10 and relay K 1 is all from main
Plate power-supply system 40.
The process that on/off circuit disclosed in this utility model realizes electric equipment switching on and shutting down is specific as follows:
Electric equipment start process: when press forceful electric power switch S1 time, forceful electric power switch S1 movable contact 1 by with normally closed stationary contact
2 conductings switch to turn on normally opened stationary contact 3, and the forceful electric power end (i.e. normally opened contact) of relay K 1 is shorted, motherboard power supply system
40 provide light current for processor 10, i.e. processor 10 is only powered by power supply VCC, processor 10 electric after, pass through relay
Drive circuit 31 obtains electric to relay K 1 output drive signal, the coil of relay K 1, the normally opened contact Guan Bi of relay K 1, by force
The live wire L of electricity sets up with motherboard power supply system 40 and is connected, it is achieved forceful electric power is the stable power-supplying of electric equipment, completes electric equipment
Start process.
Electric equipment shutdown process: when press forceful electric power switch S1 time, forceful electric power switch S1 movable contact 1 by with normally closed stationary contact
2 conductings switch to turn on normally opened stationary contact 3, and forceful electric power detection electronic circuit 21 is opened a way, and strong and weak electricity isolating device 22 turns off, processor
10 with the connectivity port of weak electricity measuring electronic circuit 23 at level signal become lasting high level signal, this height by square-wave signal
Level signal is provided by weak electricity measuring electronic circuit 23, now, processor 10 using the high level signal that detects as off signal,
Stop to relay K 1 output drive signal by relay drive circuit 31, the coil losing electricity of relay K 1, relay K 1
Normally opened contact disconnects, and the live wire L of forceful electric power disconnects with the connection of motherboard power supply system 40, it is achieved forceful electric power breaks with the connection of electric equipment
Open, complete the shutdown process of electric equipment.
It should be noted that when, after electric equipment machine open/close, forceful electric power switch S1 recovers again to default conditions, i.e. forceful electric power is opened
The movable contact 1 closing S1 turns on normally closed stationary contact 2.
Further, after the normally opened contact of relay K 1 closes, when forceful electric power switch S1 recovers again to default conditions, button detects
Circuit 20 can also detect zero cross signal, and therefore, on/off circuit disclosed in this utility model also has zero crossing detection function.
In summary, when electric equipment is in off-mode, the live wire L of forceful electric power and motherboard power supply system 40 and button
Testing circuit 20 is in off-state, processor 10, key press detecting circuit 20, between strong electrical control circuit 30 and forceful electric power not
There is formation path.Therefore, when this utility model achieves electric equipment shutdown, the disconnection being connected between forceful electric power with electric equipment,
It is achieved thereby that the zero-power of household electrical appliance.
Further, this utility model can also realize a key switch machine of household electrical appliance.
Corresponding with above-described embodiment, this utility model it is also disclosed that a kind of household electrical appliance.
On/off circuit during household electrical appliance include above-described embodiment disclosed in this utility model, concrete the opening of household electrical appliance
Shutdown process refers to on/off circuit corresponding part, and this utility model does not limits at this.
Finally, in addition it is also necessary to explanation, in this article, the relational terms of such as first and second or the like be used merely to by
One entity or operation separate with another entity or operating space, and not necessarily require or imply these entities or operation
Between exist any this reality relation or order.And, term " includes ", " comprising " or its any other variant meaning
Containing comprising of nonexcludability, so that include that the process of a series of key element, method, article or equipment not only include that
A little key elements, but also include other key elements being not expressly set out, or also include for this process, method, article or
The key element that equipment is intrinsic.In the case of there is no more restriction, statement " including ... " key element limited, do not arrange
Except there is also other identical element in including the process of described key element, method, article or equipment.
In this specification, each embodiment uses the mode gone forward one by one to describe, and what each embodiment stressed is and other
The difference of embodiment, between each embodiment, identical similar portion sees mutually.
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses this practicality new
Type.Multiple amendment to these embodiments will be apparent from for those skilled in the art, is determined herein
The General Principle of justice can realize in the case of without departing from spirit or scope of the present utility model in other embodiments.Cause
This, this utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The widest scope consistent with features of novelty.
Claims (8)
1. an on/off circuit, it is characterised in that be applied to electric equipment, described on/off circuit includes: processor, button
Testing circuit and strong electrical control circuit；
Described processor is connected with described key press detecting circuit and described strong electrical control circuit respectively, and described processor is used for receiving
The switching signal that described key press detecting circuit detects, and trigger described strong electrical control circuit control electricity according to described switching signal
The connection of device equipment and forceful electric power or disconnection；
Described key press detecting circuit includes: forceful electric power switch, forceful electric power detection electronic circuit, strong and weak electricity isolating device and weak electricity measuring electricity
Road；
The normally opened stationary contact of described forceful electric power switch is for connecting the live wire of described forceful electric power, and the movable contact of described forceful electric power switch connects institute
Stating strong electrical control circuit, the normally closed stationary contact of described forceful electric power switch connects the input of described forceful electric power detection electronic circuit, described by force
The outfan of electro-detection electronic circuit is connected by the described strong and weak electricity isolating device being sequentially connected with and described weak electricity measuring electronic circuit
Described processor.
On/off circuit the most according to claim 1, it is characterised in that described strong and weak electricity isolating device includes: light thermocouple
Clutch；
The anode tap of the light emitting diode of described photoelectrical coupler connects the outfan of described forceful electric power detection electronic circuit, described photoelectricity
The cathode terminal of the light emitting diode of bonder connects the zero line of described forceful electric power, the transmitting of the phototriode of described photoelectrical coupler
Extremely connecting earth terminal, the collector terminal of described phototriode connects described processor by described weak electricity measuring electronic circuit.
On/off circuit the most according to claim 2, it is characterised in that described forceful electric power detection electronic circuit includes: the first limit
Leakage resistance, the first electric capacity and the first diode；
One end of described first current-limiting resistance connects described normally closed stationary contact, institute as the input of described forceful electric power detection electronic circuit
The other end stating the first current-limiting resistance connects the anode tap of described light emitting diode；
Described first electric capacity is connected in anode tap and the cathode terminal of described light emitting diode of described light emitting diode in parallel；
Described first diode reverse is connected in anode tap and the negative electrode of described light emitting diode of described light emitting diode in parallel
End.
On/off circuit the most according to claim 1, it is characterised in that described weak electricity measuring electronic circuit includes: pull-up electricity
Resistance, the second current-limiting resistance and the second electric capacity；
One end of described pull-up resistor connects the power supply of described processor, and the other end of described pull-up resistor is by described the
Two current-limiting resistances connect described processor；
The positive plate of described second electric capacity connects described second current-limiting resistance and the common port of described processor, described second electric capacity
Negative plate connect earth terminal.
On/off circuit the most according to claim 1, it is characterised in that described strong electrical control circuit includes: relay and
Relay drive circuit；
One end of the normally opened contact of described relay connects the live wire of described forceful electric power, the other end of the normally opened contact of described relay
Connect motherboard power supply system；
One end of the coil of described relay connects coil power supply, the other end of the coil of described relay pass through described in continue
Electrical apparatus driving circuit connects described processor, and described relay drive circuit is opened for the normally opened contact controlling described relay
Or close, to disconnect or to connect the live wire of described forceful electric power and the connection of described electric equipment.
On/off circuit the most according to claim 1, it is characterised in that described processor is dsp chip.
On/off circuit the most according to claim 1, it is characterised in that described forceful electric power switch is single-pole double-throw switch (SPDT).
8. household electrical appliance, it is characterised in that include the on/off circuit described in claim 1-7 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620552748.7U CN205670240U (en) | 2016-06-08 | 2016-06-08 | Startup and shutdown circuit and household appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620552748.7U CN205670240U (en) | 2016-06-08 | 2016-06-08 | Startup and shutdown circuit and household appliance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205670240U true CN205670240U (en) | 2016-11-02 |
Family
ID=57190950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620552748.7U Active CN205670240U (en) | 2016-06-08 | 2016-06-08 | Startup and shutdown circuit and household appliance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205670240U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105929744A (en) * | 2016-06-08 | 2016-09-07 | 珠海格力电器股份有限公司 | Startup and shutdown circuit and household appliance |
| CN106771530A (en) * | 2016-12-21 | 2017-05-31 | 广东志高暖通设备股份有限公司 | A kind of power zero-crossing detection circuit, device and blower fan |
-
2016
- 2016-06-08 CN CN201620552748.7U patent/CN205670240U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105929744A (en) * | 2016-06-08 | 2016-09-07 | 珠海格力电器股份有限公司 | Startup and shutdown circuit and household appliance |
| CN106771530A (en) * | 2016-12-21 | 2017-05-31 | 广东志高暖通设备股份有限公司 | A kind of power zero-crossing detection circuit, device and blower fan |
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