CN102856740A - Intelligent power saving socket special for household appliances - Google Patents
Intelligent power saving socket special for household appliances Download PDFInfo
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- CN102856740A CN102856740A CN2012103188545A CN201210318854A CN102856740A CN 102856740 A CN102856740 A CN 102856740A CN 2012103188545 A CN2012103188545 A CN 2012103188545A CN 201210318854 A CN201210318854 A CN 201210318854A CN 102856740 A CN102856740 A CN 102856740A
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- power supply
- current
- saving socket
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Abstract
The invention discloses an intelligent power saving socket special for household appliances, relates to household appliance fittings, and in particular relates to the technical field of intelligent electric engineering and electric apparatuses for power supplies of household appliances. The intelligent power saving socket comprises an automatic power-off control circuit, a current detecting circuit, a relay circuit and a direct-current power supply circuit, wherein a PIC12F675 (positive-impedance converter12F675) singlechip is taken as the core of the automatic power-off control circuit; and the direct-current power supply circuit is used for providing working power supplies for the circuits. When the current in a circuit of the household appliance is reduced because of the standby state or power off, the power supply can be cut off automatically by the intelligent power saving socket, so that the service life of the household appliance is prolonged, a potential fire hazard is prevented effectively, the lightning stroke is prevented, the electromagnetic radiation is reduced, and the intelligent power saving socket is beneficial for body health; and meanwhile the energy can be saved, the consumption is reduced, and the power costs of users are lowered.
Description
Technical field
The present invention relates to the household electrical appliances associate member, especially for the power supply access Intelligent electrical technical field of electric appliances of household electrical appliances.
Background technology
Socket mainly contains following two kinds at present:
1, a kind of common socket, supply socket has the compositions such as cover, bottom, base and wiring board, and power line access hole is arranged at the base bottom, and the external power line is connected with the power input of wiring board by the power line access hole of bottom.
2, a kind of charging socket, it comprises insulating base frame, is placed in terminal and baffle in the insulating base frame, wherein this insulating base frame is provided with first end stroma and the second terminal base, has the grafting space between this two ends stroma, and is respectively equipped with opening on the two ends stroma with respect to the grafting space; And this baffle along insulating base frame around with this first and second terminal seat frame.
Existing socket can not be cut off the electricity supply under the household electrical appliance ideal case automatically fully, therefore will produce standby energy consumption, and the waste resource is also brought Electrical Safety hidden danger simultaneously.Simultaneously, the household electrical appliance in the standby can produce certain radiation, so to healthy certain influence are arranged for a long time.
Summary of the invention
The purpose of this invention is to provide a kind of household electrical appliance Intelligent electricity-saving socket, can adapt to existing various household electrical appliance, automatic shutdown after household electrical appliance enter holding state, thoroughly deenergization.
The present invention includes auto-breaking control circuit, current detection circuit, the relay circuit take single-chip microcomputer PIC12F675 as core and the DC power supply circuit of working power is provided as each circuit; The signal output of current detection circuit connects the input of auto-breaking control circuit, the driver output port of auto-breaking control circuit is succeeded the input of appliance circuit, and the normally opened contact of relay circuit repeat circuit is serially connected between the plug of jack and external power supply.
The present invention utilizes this characteristic that electric current diminishes in household electrical appliance standby or the rear circuit of shutdown, the single-chip microcomputer PIC12F675 that arranges is the size of the microcomputer chip intelligent decision electric current in the auto-breaking control circuit of core, when electric current diminishes in the circuit after household electrical appliance are because of standby or shutdown, the present invention's energy automatic cut-off power, both can prolong the useful life of household electrical appliance, effectively avoid disaster hidden-trouble, can prevent again thunderbolt, reduce electromagnetic radiation, be conducive to healthy, also can save energy simultaneously, reduced consumer's electric cost.
Description of drawings
Fig. 1 is circuit block diagram of the present invention;
Fig. 2 is circuit theory diagrams of the present invention;
Fig. 3 is DC power supply circuit schematic diagram among the present invention;
Fig. 4 is current detection circuit schematic diagram among the present invention;
Fig. 5 is auto-breaking control circuit schematic diagram among the present invention;
Fig. 6 is repeat circuit circuit theory diagrams of the present invention.
Embodiment
The present invention is except the housing with jack, the plug of external power supply on the housing, circuit of the present invention comprises auto-breaking control circuit 1 take single-chip microcomputer PIC12F675 as core, current detection circuit 2, relay circuit 3 and provides the DC power supply circuit 4 of working power as each circuit, as shown in Figure 1.
As shown in Figure 1, 2, the source of the current transformer in the current detection circuit 2 connects the two ends of AC-input voltage, the signal output of current detection circuit 2 meets the sampling input GP4 of auto-breaking control circuit 1, the driver output port GP1 of auto-breaking control circuit 1 succeeds the input of appliance circuit 3, and the normally opened contact of relay circuit 3 repeat circuits is serially connected between the plug of jack and external power supply.
As shown in Figure 3, DC power supply circuit is divided into two parts, is respectively the 5V DC power supply circuit for the 24V DC power supply circuit that drives relay and other partial circuit work of confession.Two parts circuit by resistance-capacitance depressurization then filtering mode obtain, the 24V DC power supply circuit is by resistance R 3, capacitor C 1, rectifier bridge DB1 and capacitor C 3 form.One end of resistance R 3 and capacitor C 1 a rear termination AC-input voltage in parallel, the other end connects the input of rectifier bridge DB1, simultaneously, the other end of another input termination AC-input voltage of rectifier bridge DB1.The 5V DC power supply circuit is by resistance R 0, R4, R55, capacitor C 4, C6, C8, C9, C44, rectifier bridge DB3, inductance L 1, three terminal regulator SWDZ, 9V voltage-stabiliser tube D3 and power supply indicator LED1 form, one end of resistance R 4 and capacitor C 4 rear termination AC-input voltage in parallel, the other end connects the input of rectifier bridge DB3, simultaneously, and the other end of another input termination AC-input voltage of rectifier bridge DB3.Two outputs that are connected to rectifier bridge after inductance L 1 and capacitor C 8 series connection carry out filtering to the output of rectifier bridge, 9V voltage-stabiliser tube D3 one end is connected to the negative polarity output of rectifier bridge, the other end is connected to inductance L 1 and capacitor C 8 junctions, electrolytic capacitor filter C44 is connected in parallel on the two ends of 9V voltage-stabiliser tube D3, has so just produced a stable 9V voltage.The 5V DC power-supply circuit is to adopt three terminal regulator SWDZ to produce on 9V DC circuit basis.The 9V circuit connects three terminal regulator SWDZ input, and electrolytic capacitor filter C6, C9 are connected between three terminal regulator SWDZ output and the ground, and LED1 is power supply indicator, and resistance R 55 is its current-limiting resistance.DC power supply circuit provides the low voltage operating power supply for subsequent conditioning circuit.
As shown in Figure 4, current detection circuit is mainly by current transformer T1, sampling voltage resistance R 12, and diode D5, electrolytic capacitor filter C15 forms.Two elementary inputs of current transformer T1 are connected on the household electric appliance operation alternating current circuit, secondary in parallel with sampling voltage resistance R 12, the ac voltage signal end of sampling voltage resistance R 12 connects rectifier diode D5, at the output connection electrolytic capacitor filter C15 of rectifier diode D5.Resistance R 12 converts the alternating current of induction to alternating voltage; When household electrical appliance normally moved, the ac current signal of induction was larger, otherwise induced voltage is less during standby.Induced voltage is by diode D5 rectification, and C15 filtering connects the GP4 sample port part of single-chip microcomputer PIC12F675 with ac voltage signal average out to dc level signal.
As shown in Figure 5, the auto-breaking control circuit is by single-chip microcomputer U2 (PIC12F675), button S1, and electrification reset resistance R 6, current-limiting resistance R5, indicator light LED2, filter capacitor C10 and divider resistance R7, R8 form.Single-chip microcomputer PIC12F675 uses built-in 4M crystal oscillator, its VCC1 end is connected to the output of 5V three terminal regulator SWDZ, the GP0 end of single-chip microcomputer PIC12F675 is the push button signalling input, the GP1 end is the relay drive signal output, and the GP3 end is received VCC1 by resistance, is single-chip microcomputer electrification reset end, the GP4 end is AD sampling input, output signal to current detection circuit is sampled, GP5 end control indicator light LED2, indicator light LED2 and current-limiting resistance R5 series connection.Filter capacitor C10 is connected between power supply VCC1 and the ground.Button S1 is the button of manually powering, and namely presses this button, and relay K 1 just is the main frame power supply, but is not the external equipment power supply.
As shown in Figure 6, relay circuit is by current-limiting resistance R9, NPN triode Q1, and diode D1 and relay K 1 form.Current-limiting resistance R9 is connected between the base stage of single-chip microcomputer GP1 end and triode Q1, the grounded emitter of Q1, collector electrode meets 24V DC power supply VCC2, be connected between the VDD-to-VSS after the coil two ends parallel connection of diode D1 and relay K 1, D1 can for the electric current in the relay coil provides a loop after transistor Q1 cut-off, damage triode thereby avoid coil to produce excessive induced potential.
Among the present invention, S1 pushes button, the GP1 output high level of single-chip microcomputer PIC12F675 is through the base stage of resistance R 9 to triode Q1, triode Q1 conducting, the coil of relay K 1 gets electric on the collector electrode, the closed Domestic electric appliances power source of connecting of its normally opened contact, when household electrical appliance enter standby or off-mode, its operating current obviously reduces immediately, so the output voltage of current transformer T1 must reduce, and single-chip microcomputer GP4 end carries out voltage sample always, when finding that voltage obviously reduces, illustrate that household electrical appliance have entered standby or off-mode, this moment, indicator light LED2 began flicker, if household electrical appliance are in this state in 15 seconds always, the GP1 output low level of single-chip microcomputer PIC12F675, triode Q1 cut-off, relay K 1 dead electricity on the collector electrode, the power supply of automatic disconnection household electrical appliance.Otherwise, if household electrical appliance are opened then household electrical appliance work on again in 15 seconds, will not cut off the power supply.
The present invention also connects rectifier diode D1 at the two ends of relay K 1 coil.After transistor Q1 cut-off, for the electric current in the coil of relay K1 provides a loop, damage triode thereby avoid coil to produce excessive induced potential.
Claims (1)
1. household electrical appliance special intelligent power-saving receptacle is characterized in that comprising auto-breaking control circuit, current detection circuit, the relay circuit take single-chip microcomputer PIC12F675 as core and the DC power supply circuit of working power is provided as each circuit; The signal output of current detection circuit connects the input of auto-breaking control circuit, the driver output port of auto-breaking control circuit is succeeded the input of appliance circuit, and the normally opened contact of relay circuit repeat circuit is serially connected between the plug of jack and external power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103188545A CN102856740A (en) | 2012-09-03 | 2012-09-03 | Intelligent power saving socket special for household appliances |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103188545A CN102856740A (en) | 2012-09-03 | 2012-09-03 | Intelligent power saving socket special for household appliances |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102856740A true CN102856740A (en) | 2013-01-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012103188545A Pending CN102856740A (en) | 2012-09-03 | 2012-09-03 | Intelligent power saving socket special for household appliances |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102856740A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106765854A (en) * | 2015-11-20 | 2017-05-31 | 苏州宝时得电动工具有限公司 | Air purifier |
| CN107780067A (en) * | 2016-08-26 | 2018-03-09 | 天津市中马骏腾精密机械制造有限公司 | It is a kind of that there is the Intelligent sewing machine for automatically cutting off power supply function |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201690067U (en) * | 2010-05-21 | 2010-12-29 | 深圳市和宏实业有限公司 | Automatic power-off socket |
-
2012
- 2012-09-03 CN CN2012103188545A patent/CN102856740A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201690067U (en) * | 2010-05-21 | 2010-12-29 | 深圳市和宏实业有限公司 | Automatic power-off socket |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106765854A (en) * | 2015-11-20 | 2017-05-31 | 苏州宝时得电动工具有限公司 | Air purifier |
| CN107780067A (en) * | 2016-08-26 | 2018-03-09 | 天津市中马骏腾精密机械制造有限公司 | It is a kind of that there is the Intelligent sewing machine for automatically cutting off power supply function |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130102 |