CN102436191A - Control circuit and control method for safe power-saving power supply - Google Patents
Control circuit and control method for safe power-saving power supply Download PDFInfo
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- CN102436191A CN102436191A CN2011103428370A CN201110342837A CN102436191A CN 102436191 A CN102436191 A CN 102436191A CN 2011103428370 A CN2011103428370 A CN 2011103428370A CN 201110342837 A CN201110342837 A CN 201110342837A CN 102436191 A CN102436191 A CN 102436191A
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Abstract
The invention relates to a control circuit and a control method for a safe power-saving power supply. A switch element K1 for controlling an L line and an N line to be switched off or switched on simultaneously is connected in series to an L line circuit and an N line circuit in a household electrical appliance power line; a switch element K2 is connected in series to a G line circuit in the power line; and conduction of the switch element K1 and the switch element K2 is controlled by using a direct-current power supply circuit in a household electrical appliance to further control the switch-on and switch-off of the L line, the N line and the G line in the power line. In the invention, electrification is not required when the L line and the G line of the household electrical appliance power line are connected reversely, so that dangerous accidents are avoided effectively, and the power utilization safety is ensured. Meanwhile, three paths of leads can be switched off in time when the household electrical appliance is in the idle state, so that zero standby power consumption is realized, potential safety hazard is avoided, and a large amount of energy is saved.
Description
Technical field
The present invention relates to a kind of power circuit, particularly a kind of safety electricity-saving power control circuit and control method belong to the power control circuit technical field.
Background technology
Along with the development of society, the quantity of household electrical appliance is huge day by day, and existing household electrical appliances will be charged on the automatically controlled plate after inserting charged socket to attaching plug; And behind the household electrical appliances end of run, still leading on the automatically controlled plate of most of household electrical appliances.So long-term energising had both influenced serviceable life, wasted electric energy again, also can be struck by lightning or power circuit in superpotential infringement.Along with growing with each passing day of household electrical appliances quantity, the awaiting electric energy that existing household electrical appliances consume when not working is very surprising, has caused the significant wastage of the energy, also exists potential potential safety hazard simultaneously, can not really reach the purpose of household electrical appliance energy-saving safe.
Simultaneously, if existing household electrical appliances are in use when occurring the L line with the reversal connection of G line line preface: the G line is connected ground connection parts such as housing, should the complete machine conductance that occurs will leaking electricity under the situation of undesired electric current be returned the earth, avoids causing personal safety to the user; And when L line and the reversal connection of G line line preface, what connect on the housing is not the earth, but live wire, is equivalent on the shell that live wire directly has been connected on household electrical appliances, and this moment, the user was if touch housing, will cause personal safety, had very big potential safety hazard.
Summary of the invention
Fundamental purpose of the present invention is to address the above problem and is not enough, and a kind of safety electricity-saving power control circuit is provided, and causes danger in the time of can avoiding the reversal connection of household electrical appliance power lead, can realize household electrical appliance zero stand-by power consumption function simultaneously.
Another fundamental purpose of the present invention is, a kind of control method of power control circuit is provided, and causes danger in the time of can avoiding the reversal connection of household electrical appliance power lead, can realize household electrical appliance zero stand-by power consumption function simultaneously.
For realizing above-mentioned purpose, technical scheme of the present invention is:
A kind of safety electricity-saving power control circuit; Serial connection one is used to control the on-off element K1 that L line and N line break off simultaneously or connect on L line in the household electrical appliance power lead and the N line circuit; Serial connection one on-off element K2 on the G line circuit in power lead; Said on-off element K1 connection one is used for manually controlling the hand switch SW1 of its conducting, and said on-off element K1 is connected with DC power-supply circuit with on-off element K2.
Further, said on-off element K1 is the double-pole single-throw (D.P.S.T.) normally opened relay, and said on-off element K2 is the single-pole single-throw (SPST) normally opened relay.
Further, said control circuit is arranged on household electrical appliance inside or is arranged on the plug of household electrical appliance power lead.
Another technical scheme of the present invention is:
A kind of control method of power control circuit; Serial connection one is used to control the on-off element K1 that L line and N line break off simultaneously or connect on L line in the household electrical appliance power lead and the N line circuit; Serial connection one on-off element K2 on the G line circuit in power lead; Utilize DC power-supply circuit in the household electrical appliance whether to control said on-off element K1 and on-off element K2 conducting, and then control the connecting and disconnecting of L line, N line and G line in the power lead.
Further, said on-off element K1 goes up and connects a manual switch SW 1, by L line in the said power lead of the manual conducting of said hand switch SW1 and the said DC power-supply circuit power supply of N alignment.
Further; When said household electrical appliance get into holding state; Said DC power-supply circuit cuts off L line, N line and the G line in the said power lead simultaneously; Comprise the steps: that specifically said DC power-supply circuit controls said on-off element K1 and break off, cut off L line and N line to said DC power-supply circuit power supply; Said DC power-supply circuit quits work, and said on-off element K2 is broken off, and cuts off the G line.
Further; When said household electrical appliance operate as normal, connect L line, N line and G line in the said power lead by said DC power-supply circuit control, specifically comprise the steps: at first to control said on-off element K1; With L line in the energized line and N line, to said DC power-supply circuit power supply; Said DC power-supply circuit operate as normal is controlled said on-off element K1 and on-off element K2 conducting by said DC power-supply circuit, and then the L line of energized line, N line and G line circuit
Further, said on-off element K1 is the double-pole single-throw (D.P.S.T.) normally opened relay, and said on-off element K2 is the single-pole single-throw (SPST) normally opened relay.
Content to sum up, a kind of safety electricity-saving power control circuit of the present invention and control method through simple circuit configuration, do not have access to electricity when making L line and the reversal connection of G line line preface of household electrical appliance power lead, have effectively avoided the generation of peril, guarantee Electrical Safety.Simultaneously, when household electrical appliance are not worked, can in time cut off three line conductors, realize zero stand-by power consumption, also save mass energy when avoiding potential safety hazard.
Description of drawings
Fig. 1 is circuit theory diagrams of the present invention.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is described in further detail:
As shown in Figure 1, a kind of safety electricity-saving power control circuit is in the power circuit of household electrical appliance, to have increased on-off element K1, on-off element K2 and a hand switch SW1.Wherein, on-off element K1 is serially connected on the L line and N line circuit in the power lead, is used to control L line and N line and breaks off simultaneously or connect, and on-off element K1 adopts the double-pole single-throw (D.P.S.T.) normally opened relay.On-off element K2 is serially connected on the G line circuit in the power lead, is used to control being switched on or switched off of G line, and on-off element K2 is the single-pole single-throw (SPST) normally opened relay.Hand switch SW1 is connected with on-off element K1, is used for manually controlling its closure.
On-off element K1 is connected with the inner DC power-supply circuit of household electrical appliance with on-off element K2; Whether control its conducting by DC power-supply circuit; The input end of DC power-supply circuit connects L line, N line; Only under the situation of DC power-supply circuit operate as normal, ability CS element K1 and on-off element K2 are closed, and then with L line, N line and the whole conductings of G line.
Above-mentioned safety electricity-saving power control circuit can be made in the inside of household electrical appliance, also can be made on the plug of household electrical appliance power lead.
Describe this circuit control method below in detail:
When the L line in the power lead, G line connect when correct, manually push hand switch SW1, make the on-off element K1 that often opens closed; L line, the conducting of N line; Supply power to DC power-supply circuit simultaneously, drive circuit works, on-off element K1 that DC power-supply circuit control is often opened and the on-off element K2 adhesive of Chang Kai are in normally off; L line, N line and G line are all connected, and make the automatically controlled plate power supply to household electrical appliance inside.At this moment, unclamp hand switch SW1, on-off element K1 and on-off element K2 still are in closure state, can normal power supply.
When main electrician did to finish to be in holding state, DC power-supply circuit CS element K1 broke off, to L line, the disconnection of N line of DC power-supply circuit power supply; DC power-supply circuit quits work, and on-off element K2 also breaks off immediately, so far; Three-way whole disconnection realizes zero stand-by power consumption.
When L line in the power lead and the reversal connection of G line; Manually pushing hand switch SW1 lets after its closure; Because this moment, the power supply of actual input was G line and N line; Then can't supply power to DC power-supply circuit, DC power-supply circuit can't operate as normal, so uncontrollable on-off element K1 of DC power-supply circuit and on-off element K2 are closed.When the hand that touches hand switch SW1 button leaves; Two on-off element K1 that hand switch SW1 is corresponding and the contact of on-off element K2 automatically spring open again; This moment, the three-way off-state that still is in supplied power for the automatically controlled plate of back, had avoided the generation of potential safety hazard.
As stated, in conjunction with the given scheme content of accompanying drawing, can derive the similar techniques scheme.In every case be the content that does not break away from technical scheme of the present invention, to any simple modification, equivalent variations and modification that above embodiment did, all still belong in the scope of technical scheme of the present invention according to technical spirit of the present invention.
Claims (8)
1. safety electricity-saving power control circuit; It is characterized in that: serial connection one is used to control the on-off element K1 that L line and N line break off simultaneously or connect on L line in the household electrical appliance power lead and the N line circuit; Serial connection one on-off element K2 on the G line circuit in power lead; Said on-off element K1 connection one is used for manually controlling the hand switch SW1 of its conducting, and said on-off element K1 is connected with DC power-supply circuit with on-off element K2.
2. safety electricity-saving power control circuit according to claim 1 is characterized in that: said on-off element K1 is the double-pole single-throw (D.P.S.T.) normally opened relay, and said on-off element K2 is the single-pole single-throw (SPST) normally opened relay.
3. safety electricity-saving power control circuit according to claim 1 and 2 is characterized in that: said control circuit is arranged on household electrical appliance inside or is arranged on the plug of household electrical appliance power lead.
4. the control method of a power control circuit; It is characterized in that: serial connection one is used to control the on-off element K1 that L line and N line break off simultaneously or connect on L line in the household electrical appliance power lead and the N line circuit; Serial connection one on-off element K2 on the G line circuit in power lead; Utilize DC power-supply circuit in the household electrical appliance whether to control said on-off element K1 and on-off element K2 conducting, and then control the connecting and disconnecting of L line, N line and G line in the power lead.
5. the control method of power control circuit according to claim 4; It is characterized in that: said on-off element K1 goes up and connects a manual switch SW 1, by L line in the said power lead of the manual conducting of said hand switch SW1 and the said DC power-supply circuit power supply of N alignment.
6. the control method of power control circuit according to claim 4 is characterized in that: when said household electrical appliance get into holding state, cut off L line, N line and G line in the said power lead by said DC power-supply circuit control, specifically comprise the steps:
Said DC power-supply circuit is controlled said on-off element K1 and is broken off, and cuts off L line and N line to said DC power-supply circuit power supply;
Said DC power-supply circuit quits work, and said on-off element K2 is broken off, and cuts off the G line.
7. the control method of power control circuit according to claim 4 is characterized in that: when said household electrical appliance operate as normal, connect L line, N line and G line in the said power lead by said DC power-supply circuit control, specifically comprise the steps:
At first control said on-off element K1, with L line in the energized line and N line, to said DC power-supply circuit power supply;
Said DC power-supply circuit operate as normal is controlled said on-off element K1 and on-off element K2 conducting by said DC power-supply circuit, and then the L line of energized line, N line and G line circuit.
8. the control method of power control circuit according to claim 4, it is characterized in that: said on-off element K1 is the double-pole single-throw (D.P.S.T.) normally opened relay, said on-off element K2 is the single-pole single-throw (SPST) normally opened relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110342837.0A CN102436191B (en) | 2011-11-03 | 2011-11-03 | A kind of control method of power control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110342837.0A CN102436191B (en) | 2011-11-03 | 2011-11-03 | A kind of control method of power control circuit |
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| CN102436191A true CN102436191A (en) | 2012-05-02 |
| CN102436191B CN102436191B (en) | 2017-06-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110342837.0A Active CN102436191B (en) | 2011-11-03 | 2011-11-03 | A kind of control method of power control circuit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2990810A1 (en) * | 2012-05-16 | 2013-11-22 | France Telecom | Control device for controlling power supply to electrical appliance supplied by power supply device, has power management module including power relay for supplying energy from power supply device to appliance based on management message |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1658103A (en) * | 2005-03-01 | 2005-08-24 | 谭启仁 | Shock-proof energy-saving controller for electric cooker |
| CN1928455A (en) * | 2006-09-11 | 2007-03-14 | 刘德鹏 | Full automatic electricity insulation, thermostatic and adjustable electric water heater |
| US20080022153A1 (en) * | 2006-07-24 | 2008-01-24 | Suzhou Songbao Electric Co., Ltd. | Control circuit of ground fault circuit interrupter (gfci) |
| CN201122833Y (en) * | 2007-11-19 | 2008-09-24 | 海尔集团公司 | Micro-controlled electricity-saving protection device |
| CN201145735Y (en) * | 2007-12-31 | 2008-11-05 | 比亚迪股份有限公司 | Device for testing electric leakage circuit breaker |
-
2011
- 2011-11-03 CN CN201110342837.0A patent/CN102436191B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1658103A (en) * | 2005-03-01 | 2005-08-24 | 谭启仁 | Shock-proof energy-saving controller for electric cooker |
| US20080022153A1 (en) * | 2006-07-24 | 2008-01-24 | Suzhou Songbao Electric Co., Ltd. | Control circuit of ground fault circuit interrupter (gfci) |
| CN1928455A (en) * | 2006-09-11 | 2007-03-14 | 刘德鹏 | Full automatic electricity insulation, thermostatic and adjustable electric water heater |
| CN201122833Y (en) * | 2007-11-19 | 2008-09-24 | 海尔集团公司 | Micro-controlled electricity-saving protection device |
| CN201145735Y (en) * | 2007-12-31 | 2008-11-05 | 比亚迪股份有限公司 | Device for testing electric leakage circuit breaker |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2990810A1 (en) * | 2012-05-16 | 2013-11-22 | France Telecom | Control device for controlling power supply to electrical appliance supplied by power supply device, has power management module including power relay for supplying energy from power supply device to appliance based on management message |
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| Publication number | Publication date |
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| CN102436191B (en) | 2017-06-23 |
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Effective date of registration: 20160706 Address after: 266101 Haier Industrial Park, No. 1, Haier Road, hi tech park, Laoshan District, Shandong, China Applicant after: Qingdao Haier Drum Washing Machine Co., Ltd. Address before: 266101 Haier Industrial Park, No. 1, Haier Road, hi tech park, Laoshan District, Shandong, China Applicant before: haier group corporation Applicant before: Qingdao Haier Drum Washing Machine Co., Ltd. |
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