CN103560478A - Unexpected power outage protection device - Google Patents
Unexpected power outage protection device Download PDFInfo
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- CN103560478A CN103560478A CN201310572505.0A CN201310572505A CN103560478A CN 103560478 A CN103560478 A CN 103560478A CN 201310572505 A CN201310572505 A CN 201310572505A CN 103560478 A CN103560478 A CN 103560478A
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Abstract
The invention relates to an unexpected power outage protection device and belongs to the field of automatic protection switches. According to the unexpected power outage protection device, the problems that an electric appliance works under an unmanned condition, so that electric resources are wasted and safety accidents are caused after unexpected power outage is ended are solved. The unexpected power outage protection device comprises an input interface circuit, an output interface circuit, an SSR module, a trigger reset circuit, a detection feedback circuit, a first state indicating circuit and a second state indicating circuit. The input interface circuit is used for connecting the device and an external power source, the output interface circuit is used for connecting the device and the electric appliance, the SSR module is used for enabling the external power source to supply power or not supply power to the electric appliance, the trigger reset circuit is used for triggering the SSR module again after the unexpected power outage, the detection feedback circuit is used for maintaining normal work after the SSR module is triggered again, the trigger reset circuit is connected with the first state indicating circuit in parallel, and one end of a voltage signal output end of the detection feedback circuit is connected with one end of the second state indicating circuit. The unexpected power outage protection device is used for being connected with the electric appliance.
Description
Technical field
The present invention relates to a kind of accident power-off protective device, belong to Automatic Protection Switching field.
Background technology
In daily life, when power consumption equipment works, run into sometimes accident power-off situation.In this case, if we close power consumption equipment power supply not in time, in unmanned situation, after power recovery, power consumption equipment will be worked in unmanned situation, may cause following consequence: the waste of (1) electric power resource, as fluorescent lamp is worked in unmanned situation; (2) there is potential safety hazard (as fire), as heater, electric blanket box flatiron etc. is worked in unmanned situation; (3) burn out electrical equipment etc.These situations have brought great inconvenience and potential safety hazard all to our daily life.
(patent No.: 93222642.6) have the following disadvantages: (1) use occasion exists limitation, can only protect the electrical equipment of being powered by this supply socket is not needing the occasion of socket just cannot use, underaction to existing patent " supply socket ".(2) can only be applicable to single phase alternating current (A.C.) occasion, can not be applied in as occasions such as direct current, three-phase alternating currents.(3), owing to not thering is state-indicating function, make people not know current supply of electric power state.
Summary of the invention
The present invention seeks in order to solve after accident power-off recovery, the electric power resource waste causing thereby electrical appliance is worked in unmanned situation causes the problem of security incident, and a kind of accident power-off protective device is provided.
Accident power-off protective device of the present invention, it comprises input interface circuit, output interface circuit, SSR module, triggers reset circuit, detects feedback circuit, a condition indication circuit and No. two condition indication circuits;
A power supply signal link of described input interface circuit connects one end of the Power supply signal input part and the SSR module normally opened contact NO that trigger reset circuit simultaneously;
Another power supply signal link of described input interface circuit connects another Power supply signal input part, one end of SSR module normally-closed contact NC, power supply negative pole, the other end of No. two condition indication circuits and the other end of output interface circuit of the negative pole of the DC supply input IN of SSR module, detection feedback circuit that triggers reset circuit simultaneously;
The triggering reset voltage signal output of described triggering reset circuit connects positive pole and the detection feedback circuit detectable voltage signals output of the DC supply input IN of SSR module simultaneously;
The other end of the normally opened contact NO of described SSR module connects simultaneously and detects the detectable voltage signals input of feedback circuit and one end of output interface circuit;
Another road voltage signal output end of described triggering reset circuit connects the other end of SSR module normally-closed contact NC;
Described triggering reset circuit and a condition indication circuit are connected in parallel;
One end of the voltage signal output end of described detection feedback circuit connects one end of No. two condition indication circuits.
Advantage of the present invention: result of the present invention is simply easy to use, solved in unexpected disconnected situation after unexpected recovery, keep electrical appliance to continue the state of power-off, thereby after having avoided accident power-off to reply again, electrical appliance is opened work and the adverse consequences and the energy waste problem that cause automatically, and the present invention is simple in structure, easy to use; Use occasion is extensive, as required flexibly choice for use in different occasions, as occasions such as direct current, three-phase alternating currents.State-indicating function is provided, makes people understand at any time current supply of electric power state.
Accompanying drawing explanation
Fig. 1 is the structural representation of accident power-off protective device of the present invention;
Fig. 2 is the electrical block diagram of accident power-off protective device of the present invention.
Embodiment
Embodiment one: present embodiment is described below in conjunction with Fig. 1, accident power-off protective device described in present embodiment, it comprises input interface circuit 51, output interface circuit 52, SSR module 1, trigger reset circuit 2, detect feedback circuit 3, condition indication circuit 41 and No. two condition indication circuits 42;
A power supply signal link of described input interface circuit 51 connects one end of the Power supply signal input part and the SSR module 1 normally opened contact NO that trigger reset circuit 2 simultaneously;
Another power supply signal link of described input interface circuit 51 connects another Power supply signal input part, one end of SSR module 1 normally-closed contact NC, the other end of the negative pole of the DC supply input IN of SSR module 1, detection the power supply negative pole of feedback circuit 3, the other end of No. two condition indication circuits 42 and output interface circuit 52 that triggers reset circuit 2 simultaneously;
The triggering reset voltage signal output of described triggering reset circuit 2 connects positive pole and the detection feedback circuit 3 detectable voltage signals outputs of the DC supply input IN of SSR module 1 simultaneously;
The other end of the normally opened contact NO of described SSR module 1 connects one end of the detectable voltage signals input and the output interface circuit 52 that detect feedback circuit 3 simultaneously;
Another road voltage signal output end of described triggering reset circuit 2 connects the other end of SSR module 1 normally-closed contact NC;
Described triggering reset circuit 2 and a condition indication circuit 41 are connected in parallel;
One end of the voltage signal output end of described detection feedback circuit 3 connects one end of No. two condition indication circuits 42.
SSR module 1 described in present embodiment is for opening or close external power source and electrical appliance energising;
Triggering reset circuit 2 described in present embodiment is for realizing the again triggering of SSR module 1 after accident power-off;
Described in present embodiment the feedback circuit that detects 3 for realizing after keeping SSR module 1 again to trigger, keep normal operation.
Embodiment two: present embodiment is described below in conjunction with Fig. 1 and Fig. 2, present embodiment is described further execution mode one, and the triggering reset circuit 2 described in present embodiment comprises diode D1, resistance R 1, R5, capacitor C 1 and two-way contact button switch S 1 No. one;
The anode of a described diode D1 connects one end of Power supply signal output part and the SSR module 1 normally opened contact NO of input interface circuit 51 simultaneously;
The negative electrode of a described diode D1 is one end, one end of capacitor C 1 and one end of a condition indication circuit 41 of contact resistance R1 simultaneously;
One end of other end while contact resistance R5 of described resistance R 1 and one end of a switch of two-way contact button switch S 1, the other end of described this switch connects positive pole and the detection feedback circuit 3 detectable voltage signals outputs of the DC supply input IN of SSR module 1;
The other end of described resistance R 5 connect one end of SSR module 1 normally-closed contact NC simultaneously, one end of another switch of two-way contact button switch S 1, the other end of the other end of capacitor C 1 and a condition indication circuit 41;
The other end of another switch of described two-way contact button switch S 1 connects another Power supply signal output part of input interface circuit 51 simultaneously.
Embodiment three: below in conjunction with Fig. 1 and Fig. 2, present embodiment is described, present embodiment is described further execution mode one, the detection feedback circuit 3 described in present embodiment comprises diode D2, resistance R 2, resistance R 6 and capacitor C 2 No. two;
The anode of described No. two diode D2 connects one end of SSR module 1 normally opened contact NO and the other end of output interface circuit 52 simultaneously;
The negative electrode of described No. two diode D2 is one end, one end of capacitor C 2 and one end of No. two condition indication circuits 42 of contact resistance R2 simultaneously;
The other end of described resistance R 2 connects the positive pole of DC supply input IN and one end of resistance R 6 of SSR module 1 simultaneously;
The other end of the other end of described resistance R 6 and capacitor C 2 is connected the power supply negative pole that detects feedback circuit 3 simultaneously.
Embodiment four: below in conjunction with Fig. 1 and Fig. 2, present embodiment is described, present embodiment is described further execution mode one, a condition indication circuit 41 described in present embodiment comprises resistance R 3 and a LED 1;
One end of one end contact resistance R3 of the voltage signal output end of described triggering reset circuit 2, the other end of described resistance R 3 connects the anode of a LED 1, and the negative electrode of this LED 1 connects the other end of the voltage signal output end that triggers reset circuit 2.
A condition indication circuit 41 described in present embodiment can be indicated three kinds of power supply states, and normal power supply, power-off and power recovery are by reset key normal power supply.
During use, from input interface, access this accident power-off protective device, from output lead-out wire, be connected on power consumption equipment.While using first, pressing reset trigger button can be to power consumption equipment normal power supply.In normal operation, " normal power supply " indicator light is bright; After accident power-off, indicator light all extinguishes, and represents in power down mode; After power recovery, " power recovery is by reset key normal power supply " indicator light is bright; User presses after reset key, and " normal power supply " indicator light is bright, and " power recovery is by reset key normal power supply " indicator light extinguishes, and enters normal operating conditions.
Embodiment five: below in conjunction with Fig. 1 and Fig. 2, present embodiment is described, present embodiment is described further execution mode one, No. two condition indication circuits 42 described in present embodiment comprise resistance R 4 and No. two LEDs 2;
One end of one end contact resistance R4 of the voltage signal output end of described detection feedback circuit 3, the other end of this resistance R 4 connects the anode of No. two LEDs 2, and the negative electrode of these No. two LEDs 2 connects one end of output interface circuit 52.
No. two condition indication circuits 42 described in present embodiment can be indicated three kinds of power supply states, and normal power supply, power-off and power recovery are by reset key normal power supply.
During use, from input interface, access this accident power-off protective device, from output lead-out wire, be connected on power consumption equipment.While using first, pressing reset trigger button can be to power consumption equipment normal power supply.In normal operation, " normal power supply " indicator light is bright; After accident power-off, indicator light all extinguishes, and represents in power down mode; After power recovery, " power recovery is by reset key normal power supply " indicator light is bright; User presses after reset key, and " normal power supply " indicator light is bright, and " power recovery is by reset key normal power supply " indicator light extinguishes, and enters normal operating conditions.
Operation principle of the present invention is: SSR module 1 is selected normally-open normally-close type two-way type solid-state relay, and the mode of input control is direct current 3-32Vdc, and output comprises a normally opened contact and a normally-closed contact.Input signal is from reset trigger circuit 2 and detect feedback circuit 3.Often open output contact access main line, normally-closed contact is connected on condition indication circuit 41 loops.
Triggering reset circuit 2 is comprised of diode D1, resistance R 1/R5, capacitor C 1 and button S1.D1 and C1 form half-wave rectifying circuit, provide suitable triggering signal to SSR module after R1 and R5 dividing potential drop.
Detecting feedback circuit 3 is comprised of diode D2, resistance R 2/R6, capacitor C 2.D2 and C2 form half-wave rectifying circuit, and the suitable SSR module that feeds back signal to is provided after R2 and R6 dividing potential drop.
LED1 is used to refer to power recovery state after accident power-off, and LED2 is used to refer to normal power supply state.
Groundwork process of the present invention is:
Input port and output port are connected on protected single phase alternating current (A.C.) circuit.While using first, press reset key S1, LED2 indicator light is bright, and LED1 indicator light does not work, and indication is now in normal power supply state.When accident power-off occurs, LED1 and LED2 indicator light all do not work, and indication is now in off-position.After power recovery, LED1 is bright, and LED2 does not work, and indication now recovers in electric power, but need to press reset key could be electrical equipment normal power supply.After power recovery, then press reset key S1, LED2 is bright, and LED1 extinguishes, and indication is now in normal power supply state.
Claims (5)
1. an accident power-off protective device, it is characterized in that, it comprises input interface circuit (51), output interface circuit (52), SSR module (1), triggers reset circuit (2), detects feedback circuit (3), a condition indication circuit (41) and No. two condition indication circuits (42);
A power supply signal link of described input interface circuit (51) connects one end of the Power supply signal input part and SSR module (1) the normally opened contact NO that trigger reset circuit (2) simultaneously;
Another power supply signal link of described input interface circuit (51) connects another Power supply signal input part, one end of SSR module (1) normally-closed contact NC, power supply negative pole, the other end of No. two condition indication circuits (42) and the other end of output interface circuit (52) of the negative pole of the DC supply input IN of SSR module (1), detection feedback circuit (3) that triggers reset circuit (2) simultaneously;
The triggering reset voltage signal output of described triggering reset circuit (2) connects positive pole and detection feedback circuit (3) the detectable voltage signals output of the DC supply input IN of SSR module (1) simultaneously;
The other end of the normally opened contact NO of described SSR module (1) connects the detectable voltage signals input of detection feedback circuit (3) and one end of output interface circuit (52) simultaneously;
Another road voltage signal output end of described triggering reset circuit (2) connects the other end of SSR module (1) normally-closed contact NC;
Described triggering reset circuit (2) is connected in parallel with a condition indication circuit (41);
One end of the voltage signal output end of described detection feedback circuit (3) connects one end of No. two condition indication circuits (42).
2. accident power-off protective device according to claim 1, is characterized in that, described triggering reset circuit (2) comprises a diode (D1), resistance R 1, R5, capacitor C 1 and two-way contact button switch S 1;
The anode of a described diode (D1) connects one end of Power supply signal output part and SSR module (1) the normally opened contact NO of input interface circuit (51) simultaneously;
The negative electrode of a described diode (D1) is one end, one end of capacitor C 1 and one end of a condition indication circuit (41) of contact resistance R1 simultaneously;
One end of other end while contact resistance R5 of described resistance R 1 and one end of a switch of two-way contact button switch S 1, the other end of described this switch connects positive pole and detection feedback circuit (3) the detectable voltage signals output of the DC supply input IN of SSR module (1);
The other end of described resistance R 5 connect one end of SSR module (1) normally-closed contact NC simultaneously, one end of another switch of two-way contact button switch S 1, the other end of the other end of capacitor C 1 and a condition indication circuit (41);
The other end of another switch of described two-way contact button switch S 1 connects another Power supply signal output part of input interface circuit (51) simultaneously.
3. accident power-off protective device according to claim 1, is characterized in that, described detection feedback circuit (3) comprises No. two diodes (D2), resistance R 2, resistance R 6 and capacitor C 2;
The anode of described No. two diodes (D2) connects one end of SSR module (1) normally opened contact NO and the other end of output interface circuit (52) simultaneously;
The negative electrode of described No. two diodes (D2) is one end, one end of capacitor C 2 and one end of No. two condition indication circuits (42) of contact resistance R2 simultaneously;
The other end of described resistance R 2 connects the positive pole of DC supply input IN and one end of resistance R 6 of SSR module (1) simultaneously;
The other end of the other end of described resistance R 6 and capacitor C 2 is connected the power supply negative pole that detects feedback circuit (3) simultaneously.
4. accident power-off protective device according to claim 1, is characterized in that, a described condition indication circuit (41) comprises resistance R 3 and a light-emitting diode (LED1);
One end of one end contact resistance R3 of the voltage signal output end of described triggering reset circuit (2), the other end of described resistance R 3 connects the anode of a light-emitting diode (LED1), and the negative electrode of this light-emitting diode (LED1) connects the other end of the voltage signal output end that triggers reset circuit (2).
5. accident power-off protective device according to claim 1, is characterized in that, described No. two condition indication circuits (42) comprise resistance R 4 and No. two light-emitting diodes (LED2);
One end of one end contact resistance R4 of the voltage signal output end of described detection feedback circuit (3), the other end of this resistance R 4 connects the anode of No. two light-emitting diodes (LED2), and the negative electrode of these No. two light-emitting diodes (LED2) connects one end of output interface circuit (52).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310572505.0A CN103560478B (en) | 2013-11-15 | 2013-11-15 | Accident power-off protective device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310572505.0A CN103560478B (en) | 2013-11-15 | 2013-11-15 | Accident power-off protective device |
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| Publication Number | Publication Date |
|---|---|
| CN103560478A true CN103560478A (en) | 2014-02-05 |
| CN103560478B CN103560478B (en) | 2016-01-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310572505.0A Active CN103560478B (en) | 2013-11-15 | 2013-11-15 | Accident power-off protective device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109361205A (en) * | 2018-12-10 | 2019-02-19 | 深圳和而泰智能控制股份有限公司 | A kind of power-down protection circuit and electric tool |
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2013
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Patent Citations (5)
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| CN2103867U (en) * | 1991-08-27 | 1992-05-06 | 马荣 | Self-protective type contactless protector |
| CN2612055Y (en) * | 2003-04-03 | 2004-04-14 | 叶纪聪 | Multipurpose energy saving switch |
| JP2008283820A (en) * | 2007-05-11 | 2008-11-20 | Hitachi Industrial Equipment Systems Co Ltd | Power receiving apparatus |
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Non-Patent Citations (1)
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109361205A (en) * | 2018-12-10 | 2019-02-19 | 深圳和而泰智能控制股份有限公司 | A kind of power-down protection circuit and electric tool |
| CN109361205B (en) * | 2018-12-10 | 2023-09-26 | 深圳和而泰智能控制股份有限公司 | Power-down protection circuit and electric tool |
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| Publication number | Publication date |
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| CN103560478B (en) | 2016-01-13 |
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Effective date of registration: 20190611 Address after: 150000 Heilongjiang Harbin Dalian economic and Trade Zone, the North Road and Xingkai Road intersection Patentee after: Harbin University of Technology Robot Group Co., Ltd. Address before: 150001 No. 92 West straight street, Nangang District, Heilongjiang, Harbin Patentee before: Harbin Institute of Technology |