CN103560478B - Accident power-off protective device - Google Patents
Accident power-off protective device Download PDFInfo
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- CN103560478B CN103560478B CN201310572505.0A CN201310572505A CN103560478B CN 103560478 B CN103560478 B CN 103560478B CN 201310572505 A CN201310572505 A CN 201310572505A CN 103560478 B CN103560478 B CN 103560478B
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Abstract
Accident power-off protective device, belongs to Automatic Protection Switching field, and after solving accident power-off recovery, the electric power resource that electrical appliance works and causes in unmanned situation is wasted thus caused the problem of security incident.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; Input interface circuit is for realizing the connection of this device and external power source, and output interface circuit is for realizing the connection of this device and electrical appliance; SSR module is used for unlatching or closedown external power source and electrical appliance and is energized; Trigger reset circuit for realizing the again triggering of SSR module after accident power-off; Detect feedback circuit and be used for realizing SSR module and again trigger rear maintenance and normally work; Triggering reset circuit and a condition indication circuit are connected in parallel; The one end detecting the voltage signal output end of feedback circuit connects one end of No. two condition indication circuits.For connecting electrical 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 normally works, run into accident power-off situation sometimes.In this case, if we close power consumption equipment power supply not in time, in unmanned situation after power recovery, power consumption equipment will work in unmanned situation, following consequence may be caused: (1) electric power resource is wasted, as fluorescent lamp works in unmanned situation; (2) there is potential safety hazard (as fire), as heater, electric blanket box flatiron etc. work in unmanned situation; (3) electrical equipment etc. is burnt out.These situations bring inconvenience and potential safety hazard greatly 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) single phase alternating current (A.C.) occasion can only be applicable to, can not be applied in as the occasion such as direct current, three-phase alternating current.(3) owing to not having state-indicating function, people are made not know current supply of electric power state.
Summary of the invention
The present invention seeks to solve after accident power-off recovers, electric power resource that electrical appliance works and causes in unmanned situation waste thus cause the problem of security incident, providing a kind of accident power-off protective device.
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 a triggering Power supply signal input part of reset circuit and one end of SSR module normally opened contact NO simultaneously;
Another power supply signal link of described input interface circuit connect simultaneously trigger reset circuit another Power supply signal input part, one end of SSR module normally-closed contact NC, the negative pole of the DC supply input IN of SSR module, the power supply negative pole detecting feedback circuit, the other end of No. two condition indication circuits and the other end of output interface circuit;
The triggering reset voltage signal output of described triggering reset circuit connects the positive pole of the DC supply input IN of SSR module simultaneously and detects feedback circuit detectable voltage signals output;
The other end of the normally opened contact NO of described SSR module connects the detection detectable voltage signals input of feedback circuit and one end of output interface circuit simultaneously;
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, after surprisingly recovering under solving unexpected disconnected situation, electrical appliance is kept to continue the state of power-off, thus avoid after accident power-off replys again, the adverse consequences that electrical appliance is automatically opened work and caused and energy waste problem, further, structure of the present invention is simple, easy to use; Use occasion is extensive, as required can flexibly choice for use in different occasions, as the occasion such as direct current, three-phase alternating current.State-indicating function is provided, makes people understand current supply of electric power state at any time.
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, triggers reset circuit 2, detects 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 a triggering Power supply signal input part of reset circuit 2 and one end of SSR module 1 normally opened contact NO simultaneously;
Another power supply signal link of described input interface circuit 51 connect simultaneously trigger reset circuit 2 another Power supply signal input part, one end of SSR module 1 normally-closed contact NC, the DC supply input IN of SSR module 1 negative pole, detect the other end of the power supply negative pole of feedback circuit 3, the other end of No. two condition indication circuits 42 and output interface circuit 52;
The triggering reset voltage signal output of described triggering reset circuit 2 connects the positive pole of the DC supply input IN of SSR module 1 simultaneously and detects feedback circuit 3 detectable voltage signals output;
The other end of the normally opened contact NO of described SSR module 1 connects the detection detectable voltage signals input of 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 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.
Input interface circuit 51 described in present embodiment for realizing the connection of accident power-off protective device of the present invention and external power source,
Output interface circuit 52 described in present embodiment is for realizing the connection of accident power-off protective device of the present invention and electrical appliance;
SSR module 1 described in present embodiment is energized for opening or close external power source and electrical appliance;
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 detect feedback circuit 3 keep normal work after realizing keeping SSR module 1 again to trigger.
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 a diode D1, resistance R1, R5, electric capacity C1 and two-way contact button switch S 1;
The anode of a described diode D1 connects a Power supply signal output part of input interface circuit 51 and one end of SSR module 1 normally opened contact NO simultaneously;
The negative electrode of a described diode D1 is one end of contact resistance R1, one end of electric capacity C1 and one end of a condition indication circuit 41 simultaneously;
One end of the other end of described resistance R1 one end of contact resistance R5 and a switch of two-way contact button switch S 1 simultaneously, the other end of this switch described connects the positive pole of the DC supply input IN of SSR module 1 and detects feedback circuit 3 detectable voltage signals output;
The other end of described resistance R5 connects the other end of one end of SSR module 1 normally-closed contact NC, one end of another switch of two-way contact button switch S 1, the other end of electric capacity C1 and a condition indication circuit 41 simultaneously;
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: present embodiment is described below in conjunction with Fig. 1 and Fig. 2, present embodiment is described further execution mode one, and the detection feedback circuit 3 described in present embodiment comprises No. two diode D2, resistance R2, resistance R6 and electric capacity C2;
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 of contact resistance R2, one end of electric capacity C2 and one end of No. two condition indication circuits 42 simultaneously;
The other end of described resistance R2 connects the positive pole of the DC supply input IN of SSR module 1 and one end of resistance R6 simultaneously;
The other end of described resistance R6 and the other end of electric capacity C2 are connected the power supply negative pole detecting feedback circuit 3 simultaneously.
Embodiment four: present embodiment is described below in conjunction with Fig. 1 and Fig. 2, present embodiment is described further execution mode one, and a condition indication circuit 41 described in present embodiment comprises resistance R3 and No. one 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 R3 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 triggering reset circuit 2.
Described in present embodiment No. one condition indication circuit 41 can indicate three kinds of power supply states, and namely normal power supply, power-off and power recovery are by reset key normal power supply.
During use, access this accident power-off protective device from input interface, be connected on power consumption equipment from output lead-out wire.When using first, pressing reset trigger button can 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 and is in power down mode; After power recovery, " power recovery is by reset key normal power supply " indicator light is bright; After user presses reset key, " 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: present embodiment is described below in conjunction with Fig. 1 and Fig. 2, present embodiment is described further execution mode one, and No. two condition indication circuits 42 described in present embodiment comprise resistance R4 and No. two LED 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 R4 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.
Described in present embodiment No. two condition indication circuit 42 can indicate three kinds of power supply states, and namely normal power supply, power-off and power recovery are by reset key normal power supply.
During use, access this accident power-off protective device from input interface, be connected on power consumption equipment from output lead-out wire.When using first, pressing reset trigger button can 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 and is in power down mode; After power recovery, " power recovery is by reset key normal power supply " indicator light is bright; After user presses reset key, " 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 selects normally-open normally-close type two-way type solid-state relay, and the mode of input control is direct current 3-32Vdc, exports and 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 loop.
Trigger reset circuit 2 to be made up of diode D1, resistance R1/R5, electric capacity C1 and button S1.D1 and C1 forms half-wave rectifying circuit, provides suitable triggering signal to SSR module after R1 and R5 dividing potential drop.
Detect feedback circuit 3 to be made up of diode D2, resistance R2/R6, electric capacity C2.D2 and C2 forms half-wave rectifying circuit, provides suitable and feed back signal to SSR module after R2 and R6 dividing potential drop.
Condition indication circuit 41 is made up of resistance R3 and LED 1.R3 is the current-limiting resistance of LED1.
Condition indication circuit 42 is made up of resistance R4 and LED 2.R4 is the current-limiting resistance of LED2 respectively.
LED1 is used to refer to power recovery state after accident power-off, and LED2 is used to refer to normal power supply state.
Input port circuit 51 and output port circuit 52 are respectively input port and the output port of main line, need to select different binding posts according to difference.
Groundwork process of the present invention is:
Input port and output port are connected on protected single phase alternating current (A.C.) circuit.Press reset key S1 when using first, LED2 indicator light is bright, and LED1 indicator light does not work, and instruction is now in normal power supply state.When accident power-off occurs, LED1 and LED2 indicator light does not all work, and instruction is now in off-position.When after power recovery, LED1 is bright, and LED2 does not work, and instruction is now in electric power and recovers, but needing to press reset key could be electrical equipment normal power supply.When after power recovery, then press reset key S1, LED2 is bright, and LED1 extinguishes, and instruction 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 a Power supply signal input part of triggering reset circuit (2) and one end of SSR module (1) normally opened contact NO simultaneously;
Another power supply signal link of described input interface circuit (51) connect simultaneously trigger reset circuit (2) another Power supply signal input part, one end of SSR module (1) normally-closed contact NC, the negative pole of the DC supply input IN of SSR module (1), the power supply negative pole detecting feedback circuit (3), the other end of No. two condition indication circuits (42) and the other end of output interface circuit (52);
The triggering reset voltage signal output of described triggering reset circuit (2) connects the positive pole of the DC supply input IN of SSR module (1) simultaneously and detects feedback circuit (3) detectable voltage signals output;
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) 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).
2. accident power-off protective device according to claim 1, it is characterized in that, described triggering reset circuit (2) comprises a diode (D1), resistance R1, R5, electric capacity C1 and two-way contact button switch S 1;
The anode of a described diode (D1) connects a Power supply signal output part of input interface circuit (51) and one end of SSR module (1) normally opened contact NO simultaneously;
The negative electrode of a described diode (D1) is one end of contact resistance R1, one end of electric capacity C1 and one end of a condition indication circuit (41) simultaneously;
One end of the other end of described resistance R1 one end of contact resistance R5 and a switch of two-way contact button switch S 1 simultaneously, the other end of a switch of described switch S 1 connects the positive pole of the DC supply input IN of SSR module (1) and detects feedback circuit (3) detectable voltage signals output;
The other end of described resistance R5 connects the other end of one end of SSR module (1) normally-closed contact NC, one end of another switch of two-way contact button switch S 1, the other end of electric capacity C1 and a condition indication circuit (41) simultaneously;
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, it is characterized in that, described detection feedback circuit (3) comprises No. two diodes (D2), resistance R2, resistance R6 and electric capacity C2;
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 of contact resistance R2, one end of electric capacity C2 and one end of No. two condition indication circuits (42) simultaneously;
The other end of described resistance R2 connects the positive pole of the DC supply input IN of SSR module (1) and one end of resistance R6 simultaneously;
The other end of described resistance R6 and the other end of electric capacity C2 are connected the power supply negative pole detecting feedback circuit (3) simultaneously.
4. accident power-off protective device according to claim 1, it is characterized in that, a described condition indication circuit (41) comprises resistance R3 and No. one 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 R3 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 triggering reset circuit (2).
5. accident power-off protective device according to claim 1, it is characterized in that, described No. two condition indication circuits (42) comprise resistance R4 and No. two light-emitting diode (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 R4 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 |
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| CN103560478A CN103560478A (en) | 2014-02-05 |
| CN103560478B true CN103560478B (en) | 2016-01-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310572505.0A Active CN103560478B (en) | 2013-11-15 | 2013-11-15 | Accident power-off protective device |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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|---|---|---|---|---|
| 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 |
| CN201584744U (en) * | 2009-07-15 | 2010-09-15 | 袁留路 | Intelligent power supply protector |
| EP2448087A1 (en) * | 2010-11-02 | 2012-05-02 | Schneider Electric USA, Inc. | Reliable electrical distribution system with alternate power source |
-
2013
- 2013-11-15 CN CN201310572505.0A patent/CN103560478B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN201584744U (en) * | 2009-07-15 | 2010-09-15 | 袁留路 | Intelligent power supply protector |
| EP2448087A1 (en) * | 2010-11-02 | 2012-05-02 | Schneider Electric USA, Inc. | Reliable electrical distribution system with alternate power source |
Non-Patent Citations (1)
| Title |
|---|
| 磨床意外断电安全防护装置的研究与设计;管怀蓉;《机电产品开发与创新》;20111130;第24卷(第6期);第171、172、175页 * |
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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 |
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