CN201656802U - Zero standby power consumption circuit of household electrical appliance - Google Patents
Zero standby power consumption circuit of household electrical appliance Download PDFInfo
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- CN201656802U CN201656802U CN2009201226226U CN200920122622U CN201656802U CN 201656802 U CN201656802 U CN 201656802U CN 2009201226226 U CN2009201226226 U CN 2009201226226U CN 200920122622 U CN200920122622 U CN 200920122622U CN 201656802 U CN201656802 U CN 201656802U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
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Abstract
A zero standby power consumption circuit of household appliances comprises a main power supply, an auxiliary power supply, a low-voltage control circuit, a controlled switch and a power switch. The controlled switch is connected between the live wire of the power plug and the main power supply, the power switch is connected between the live wire of the power plug and the auxiliary power supply, and the low-voltage control circuit is connected between the auxiliary power supply and the controlled switch. When the power switch is pressed down, the auxiliary power circuit is powered on and is supplied to the low-voltage control circuit, the controlled switch is controlled to be closed, the main circuit is powered on, and the household appliance works normally; at this time, even if the power switch is turned off, the main power supply and the sub power supply continue to be powered on, and the normal operation of the household appliance is maintained. The power switch is a point contact switch, when the power switch enters a standby state, the low-voltage control circuit turns off the controlled switch, so that an external power supply is thoroughly disconnected from an internal circuit, the standby power consumption is reduced to zero, the energy-saving purpose of the household appliance is realized, the service life of the household appliance is prolonged, and the potential safety hazard of the household appliance in the standby state is avoided.
Description
Technical field
The utility model relates to household electrical appliance, relates in particular to the power circuit of household electrical appliance control stand-by power consumption.
Background technology
Along with improving constantly of people's living standard, various household electrical appliance are come into huge numbers of families day by day, and its quantity is huge day by day.Existing household electrical appliances are after inserting charged socket to attaching plug, and internal circuit has just been connected power supply, even electrical equipment does not enter operating state, but various components and parts are still consuming certain power consumption.Such as the electromagnetic oven of selling on the market, even closed electromagnetic oven, also just closed heating system, various components and parts are still switched on, control circuit is still in operation, as long as resistive device has voltage difference, will produce power consumption on it, capacitive or perceptual device also produce power consumption because of not reaching perfect condition.Long-term energising not only influences useful life of electrical equipment, wastes electric energy again, also can bring unnecessary potential safety hazard, as the thunderbolt in the power circuit, surge, electronic component inefficacy etc. cause on fire etc.
For avoiding electrical equipment to switch on for a long time, need people to use up electrical equipment and will pull out attaching plug afterwards, but so also brought inconvenience for people's life.
Summary of the invention
Under holding state, produce power consumption in order to overcome existing household electrical appliance, cause energy waste and have the problem of potential safety hazard, the utility model provides a kind of family electrical zero stand-by power consumption circuit, make household electrical appliances under holding state, thoroughly cut off power supply, stand-by power consumption is zero, and has stopped various potential safety hazards.
For solving the problems of the technologies described above, the utility model adopts following technical scheme:
The circuit of a kind of family electrical zero stand-by power consumption, comprise main power source, auxiliary power, low-voltage control circuit, controlled switch and mains switch, described controlled switch is connected between the live wire and main power source of attaching plug, described mains switch is connected between the live wire and auxiliary power of attaching plug, low-voltage control circuit is connected between auxiliary power and the controlled switch, the control controlled switch.
As the further qualification to technique scheme, described mains switch can adopt a point contact type switch to realize, the branch road of described mains switch auxiliary connection power supply, and must having one, to be connected on the handoff leg of controlled switch back in parallel with it.After the controlled switch closure, auxiliary power can be kept operate as normal by handoff leg.Palpus increase by one shutdown key circuit is connected to the central controller in the low-voltage control circuit in the described low-voltage control circuit.
As the further qualification to technique scheme, described mains switch can adopt a point contact type switch to realize, the branch road of described mains switch auxiliary connection power supply, and must having one, to be connected on the handoff leg of controlled switch back in parallel with it.After the controlled switch closure, auxiliary power can be kept operate as normal by handoff leg.Described mains switch also can be used as the shutdown button, must increase by a sampling branch road in the described low-voltage control circuit, is connected between the branch road and the central controller in the low-voltage control circuit of described mains switch auxiliary connection power supply.
As the further qualification to technique scheme, described mains switch can adopt a self-lock switch to realize, must increase the drive circuit of control self-lock switch, is connected in the low-voltage control circuit; Other has the shutdown key circuit to be connected to low-voltage control circuit.When satisfying cut-off condition, the central controller in the low-voltage control circuit disconnects self-lock switch by drive circuit.
As the further qualification to technique scheme, described controlled switch can adopt relay or controllable silicon to realize.
As the further qualification to technique scheme, described low-voltage control circuit is by controlled switch drive circuit control controlled switch.
Implementation procedure of the present utility model is as follows: by being connected the controlled switch between attaching plug live wire and the main power source and being connected mains switch between attaching plug live wire and the auxiliary power, after pressing mains switch, auxiliary power gets, offer low-voltage control circuit, the low-voltage control circuit output signal makes the controlled switch closure, then main power source get electric, but the household electrical appliances operate as normal.Here so-called mains switch adopts a point contact type switch, even at this moment mains switch disconnects, auxiliary power also can continue electricly by handoff leg, keeps the household electrical appliances operate as normal.When household electrical appliance satisfy cut-off condition, when needing standby, low-voltage control circuit output control signal disconnects controlled switch, main power source and auxiliary power dead electricity together then, external power source and household electrical appliances internal circuit are thoroughly disconnected, both having made stand-by power consumption is zero, eliminated the potential safety hazard that the energising standby brings again, has reached the purpose that people's energy-saving safe makes electrical appliance easily.
Compared with prior art, advantage of the present utility model is as follows: 1, and stand-by power consumption is zero, has saved electric energy; 2, eliminate safe hidden trouble, prolonged electrical equipment useful life.
Description of drawings
Fig. 1 is the circuit connection diagram that the utility model is realized the example one of zero stand-by power consumption.
Fig. 2 is the circuit connection diagram of example two.
Fig. 3 is the circuit connection diagram of example three.
Embodiment
Now further set forth the present invention in conjunction with example and schematic diagram.
Example one: in Fig. 1, so-called mains switch SW1 is a point contact type switch, and so-called controlled switch is an electromagnetic relay RY1.After attaching plug inserted charged socket, because mains switch SW1 and controlled switch RY1 are off-state, the live wire of power supply and zero line did not form the loop, so the household electrical appliances internal electric source can not get.After pressing mains switch SW1, the input live wire of auxiliary power 5 and zero line form the loop, the mains ac power supply is through diode D1, D2, D3, the full bridge rectifier that D4 forms, become pulsating direct current, become comparatively level and smooth direct current through resistance R 120 and capacitor C 111 filtering again, be connected to primary coil 1 pin of high frequency transformer T101, power supply chip IC101 output modulation signal is to 3 pin of transformer T101, the electric current that changes in transformer, thereby go out voltage in that transformer secondary output is coil-induced, through diode D9, obtain direct voltage VDD2 after the D10 rectification, VDD1, offer low-voltage control circuit, the 1st pin output high level drive signal of the central controller chip IC 2 in the low-voltage control circuit is to controlled switch drive circuit 4, this drive signal is added in the base stage of triode Q103 through resistance R 111, make triode Q103 conducting, then be added in the power vd D2 coils J1 of coil J1 one end of controlled switch RY1, current-limiting resistance R110, triode Q103 is to ground wire, form the loop, thereby make normally opened contact K1 closure, then main power source 3 gets.After unclamping mains switch SW1, SW1 recovers normally open, first handoff leg 1 or the handoff leg 2 that are connected on controlled switch RY1 back replace original mains switch SW1 place branch road, as D3, the D4 in the branch road of diode D5, D6 in first handoff leg 1 replacement mains switch SW1 place; Perhaps diode D7 replaces mains switch SW1 place branch road that commutating voltage is provided in second handoff leg 2.Auxiliary power 5 still continues electricly, keeps the operate as normal of household electrical appliances.
When satisfying waiting condition, as finish behind the preset function or by behind the button K1 input shutdown command in the shutdown key circuit 6, control chip IC2 in the low-voltage control circuit 7 is by the triode Q103 in the 1 pin output low level drive signal shutoff controlled switch drive circuit 4, thereby disconnect the power vd D2 of the coil J1 of controlled switch RY1, the normally opened contact K1 of controlled switch recovers normally open, main power source 3 dead electricity, the handoff leg dead electricity, mains switch SW1 also is in normally open, auxiliary power 5 dead electricity, household electrical appliances internal circuit and external power source thoroughly disconnect.
Example two: in Fig. 2, so-called mains switch SW2 is a point contact type switch, and so-called controlled switch is an electromagnetic relay RY2.After attaching plug inserted charged socket, because mains switch SW2 and controlled switch RY2 are off-state, the household electrical appliances internal electric source can not get.After pressing mains switch SW2, the input live wire of auxiliary power 5 and zero line form the loop, the mains ac power supply is through diode D1, D2, D3, the full bridge rectifier that D4 forms, become pulsating direct current, become comparatively level and smooth direct current through resistance R 120 and capacitor C 111 filtering again, be connected to primary coil 1 pin of high frequency transformer T101, power supply chip IC101 output modulation signal is to 3 pin of transformer T101, the electric current that changes in transformer, thereby go out voltage in that transformer secondary output is coil-induced, through diode D9, obtain direct voltage VDD2 after the D10 rectification, VDD1, offer low-voltage control circuit 7, the 1st pin output high level drive signal of control chip IC2 in the low-voltage control circuit 7 is to controlled switch drive circuit 4, this drive signal is added in the base stage of triode Q103 through resistance R 111, make triode Q103 conducting, then be added in the power vd D2 coils J2 of coil J2 one end of controlled switch RY2, current-limiting resistance R110, triode Q103 is to ground wire, form the loop, thereby make normally opened contact K2 closure, then main power source 3 gets.After unclamping mains switch SW2, SW2 recovers off-state, first handoff leg 1 or second handoff leg 2 that are connected on controlled switch RY2 back replace original mains switch SW2 place branch road, as D3, the D4 in the branch road of diode D5, D6 in first handoff leg 1 replacement mains switch SW2 place; Perhaps diode D7 replaces mains switch SW2 place branch road that commutating voltage is provided in second handoff leg 2.Auxiliary power 5 still continues electricly, keeps the operate as normal of household electrical appliances.
Described point-touch switch SW2 both for the start button, also can be used as the shutdown button.When satisfying waiting condition, as after finishing predetermined function, perhaps press mains switch SW2 once more, the SW2 conducting, diode D3, the link of D4 obtains voltage, this voltage is through resistance R 311,2 pin of control chip IC2 in the sampling branch road 8 input low-voltage control circuits 7 that R312 forms, control chip obtains the off signal of mains switch SW2, then by the triode Q103 in the 1 pin output low level signal shutoff controlled switch drive circuit 4, disconnect the power vd D2 of the coil J2 of controlled switch RY2, the normally opened contact K2 of controlled switch recovers normally open, main power source 3 dead electricity, the handoff leg dead electricity, mains switch SW2 also is in normally open, auxiliary power 5 dead electricity, household electrical appliances internal circuit and external power source thoroughly disconnect.
Example three: in Fig. 3, so-called mains switch SW3 is a self-lock switch, and so-called controlled switch is an electromagnetic relay RY3.After attaching plug inserted charged socket, because mains switch SW3 and controlled switch RY3 are off-state, the household electrical appliances internal electric source can not get.After pressing mains switch SW3, the input live wire of auxiliary power 5 and zero line form the loop, the mains ac power supply is through diode D1, D2, D3, the full bridge rectifier that D4 forms, become pulsating direct current, become comparatively level and smooth direct current through resistance R 120 and capacitor C 111 filtering again, be connected to primary coil 1 pin of high frequency transformer T101, power supply chip IC101 output modulation signal is to 3 pin of transformer T101, the electric current that changes in transformer, thereby go out voltage in that transformer secondary output is coil-induced, through diode D9, obtain direct voltage VDD2 after the D10 rectification, VDD1, offer low-voltage control circuit 7, the 2nd pin output high level drive signal of control chip IC2 in the low-voltage control circuit 7 is to mains switch drive circuit 9, this drive signal is added in the base stage of triode Q203 through resistance R 211, make triode Q203 conducting, the power vd D1 that then is added in mains switch coil one end is through the mains switch coil, current-limiting resistance R210, triode Q203 is to ground wire, form the loop, SW3 finishes self-locking, is kept closed; The 1st pin output high level drive signal of control chip IC2 in the low-voltage control circuit 7 is to controlled switch drive circuit 4, this drive signal is added in the base stage of triode Q103 through resistance R 111, make triode Q103 conducting, the power vd D2 coils J3, current-limiting resistance R110, triode Q103 that then are added in coil J3 one end of controlled switch RY3 are to ground wire, form the loop, thereby make normally opened contact K3 closure.Then main power source 3 gets.But household electrical appliances operate as normal.
When satisfying waiting condition, as finish behind the predetermined function or by behind the button K3 input standby command in the shutdown key circuit 6, control chip IC2 in the low-voltage control circuit 7 obtains off signal, by the triode Q103 in the 1 pin output drive signal shutoff controlled switch drive circuit 4, disconnect the power supply of the coil J3 of controlled switch RY3, the normally opened contact K3 of controlled switch RY3 recovers normally open, main power source 3 dead electricity; Control chip IC2 is by the triode Q203 in the 2 pin output signal power cutoff switch driving circuits 9, disconnecting power switch SW3, then auxiliary power 5 dead electricity simultaneously.At this moment, household electrical appliances internal circuit and external power source thoroughly disconnect.
Claims (6)
1. tame electrical zero stand-by power consumption circuit, comprise main power source, auxiliary power, low-voltage control circuit, controlled switch and mains switch, it is characterized in that: described controlled switch is connected between the live wire and main power source of attaching plug, described mains switch is connected between the live wire and auxiliary power of attaching plug, low-voltage control circuit is connected between auxiliary power and the controlled switch, the control controlled switch.
2. a kind of according to claim 1 family electrical zero stand-by power consumption circuit, it is characterized in that: described mains switch adopts a point contact type switch to realize, the branch road of described mains switch auxiliary connection power supply, there is a handoff leg that is connected on the controlled switch back in parallel with it, one shutdown key circuit is arranged in the described low-voltage control circuit, be connected to the central controller in the low-voltage control circuit.
3. a kind of according to claim 1 family electrical zero stand-by power consumption circuit, it is characterized in that: described mains switch adopts a point contact type switch to realize, the branch road of described mains switch auxiliary connection power supply, there is a handoff leg that is connected on the controlled switch back in parallel with it, described mains switch is also as the shutdown button, one sampling branch road is arranged in the described low-voltage control circuit, be connected between the branch road and the central controller in the low-voltage control circuit of described mains switch auxiliary connection power supply.
4. a kind of according to claim 1 family electrical zero stand-by power consumption circuit, it is characterized in that: described mains switch is a self-lock switch, increase the mains switch drive circuit in the low-voltage control circuit and be connected between the central controller in mains switch and the low-voltage control circuit, low-voltage control circuit has the key circuit that shuts down to be connected to central controller in the low-voltage control circuit.
5. a kind of according to claim 1 family electrical zero stand-by power consumption circuit, it is characterized in that: described controlled switch is relay or controllable silicon.
6. a kind of according to claim 1 family electrical zero stand-by power consumption circuit is characterized in that: described low-voltage control circuit is by controlled switch drive circuit control controlled switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201226226U CN201656802U (en) | 2009-06-12 | 2009-06-12 | Zero standby power consumption circuit of household electrical appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201226226U CN201656802U (en) | 2009-06-12 | 2009-06-12 | Zero standby power consumption circuit of household electrical appliance |
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| Publication Number | Publication Date |
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| CN201656802U true CN201656802U (en) | 2010-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201226226U Expired - Lifetime CN201656802U (en) | 2009-06-12 | 2009-06-12 | Zero standby power consumption circuit of household electrical appliance |
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| CN (1) | CN201656802U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102570580A (en) * | 2011-10-31 | 2012-07-11 | 深圳和而泰智能控制股份有限公司 | Zero-standby power consumption power supply circuit, power supply device and household appliance |
| CN105114998A (en) * | 2015-09-02 | 2015-12-02 | 九阳股份有限公司 | Control method for electromagnetic oven with low power consumption |
| CN105814251A (en) * | 2013-12-18 | 2016-07-27 | Bsh家用电器有限公司 | Domestic appliance with galvanically isolated circuit parts |
-
2009
- 2009-06-12 CN CN2009201226226U patent/CN201656802U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102570580A (en) * | 2011-10-31 | 2012-07-11 | 深圳和而泰智能控制股份有限公司 | Zero-standby power consumption power supply circuit, power supply device and household appliance |
| CN102570580B (en) * | 2011-10-31 | 2014-10-08 | 深圳和而泰智能控制股份有限公司 | Zero-standby power consumption power supply circuit, power supply device and household appliance |
| CN105814251A (en) * | 2013-12-18 | 2016-07-27 | Bsh家用电器有限公司 | Domestic appliance with galvanically isolated circuit parts |
| CN105814251B (en) * | 2013-12-18 | 2018-01-02 | Bsh家用电器有限公司 | Home appliances with the circuit part being galvanically isolated |
| CN105114998A (en) * | 2015-09-02 | 2015-12-02 | 九阳股份有限公司 | Control method for electromagnetic oven with low power consumption |
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| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101124 |
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| CX01 | Expiry of patent term |