CN202110210U - Electric spark sensor - Google Patents
Electric spark sensor Download PDFInfo
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- CN202110210U CN202110210U CN2011202178072U CN201120217807U CN202110210U CN 202110210 U CN202110210 U CN 202110210U CN 2011202178072 U CN2011202178072 U CN 2011202178072U CN 201120217807 U CN201120217807 U CN 201120217807U CN 202110210 U CN202110210 U CN 202110210U
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- operational amplifier
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- relay
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Abstract
The utility model discloses an electric spark sensor, characterized by adding an inductance L3, a diode D0 and a relay J into the prior electric spark sensor circuit. The electric spark sensor has high sensitivity, good interference resistance and excellent safety, additionally has simple structure, strong practicality and great popularization value, and can be widely used for electrical fire hazard monitor protection in families and public places, etc.
Description
Technical field
The utility model relates to a kind of electric spark sensor that the electrical equipment arcing detects that is used for.
Background technology
At present, along with the development of society, electrical equipment has obtained application more and more widely in our life, and the probability of the fire that electrical equipment takes place is also than higher.To this kind situation, a kind of monitoring protector of electrical fire has appearred on the market, and it can play the function of electrical equipment arcing detection and intelligent power switch.But the sensitivity of the electric spark sensor that this monitoring protector of electrical fire adopted is low, anti-interference is also poor, and security is relatively poor.Therefore, provide a kind of electric spark sensor highly sensitive, that anti-interference is good to become the industry technical issues that need to address.
The utility model content
The utility model technical issues that need to address are to provide a kind of highly sensitive, electric spark sensor that anti-interference is good.
For solving the problems of the technologies described above; The technical scheme that the utility model adopts is: the electric spark sensor; One end of inductance L 2 is vacant; The other end is connected with the anode of diode D0, and the other end of diode D0 and resistance R 1 are joined, the other end of resistance R 1 respectively with capacitor C 1, resistance R 2, resistance R 3, operational amplifier A 1+mutually input end, operational amplifier A 2-the phase input end is connected; One end of inductance L 3 is vacant, and the other end is connected with dc power cathode; One end of resistance R 4 respectively with operational amplifier A 1-end of input end, resistance R 5 connects mutually; The other end of resistance R 5 respectively with operational amplifier A 2+end of input end, resistance R 6 connects mutually; The anode of operational amplifier A 1 output terminal and diode D1 joins, the negative electrode of diode D1 respectively with operational amplifier A 3+negative electrode, the positive pole of stabilivolt DW, an end of resistance R 7, an end of capacitor C 2 of input end, diode D2 are connected mutually; The output terminal of operational amplifier A 2 is connected with the anode of diode D2; One end of resistance R 8 respectively with operational amplifier A 3-end of input end, resistance R 9 links to each other mutually; The output terminal of operational amplifier A 3 is connected with an end of resistance R 10, and the other end of resistance R 10 is connected with the base stage of triode T, and the anode of diode D3 is connected with coil one end of relay J, the collector of triode T respectively; One end of resistance R 11 respectively with operational amplifier A 4+end, an end of capacitor C 3 of the normally closed contact JB of input end, relay J are connected mutually; One end of resistance R 12 respectively with operational amplifier A 4-end of input end, resistance R 13 is connected mutually; The output terminal of operational amplifier A 4 is connected with an end of resistance R 15, and the other end of resistance R 15 is connected with an end of resistance R 14, an end of capacitor C 4, the trigger electrode of controllable silicon 3CT respectively; One end of resistance R 16 and the negative of light emitting diode LD1 join, and the other end of light emitting diode LD1 is connected with joint one end of often opening of relay J K; The anode of dc power anode and diode D4 joins, and the negative electrode of diode D4 is connected with negative electrode, an end of relay J coil, resistance R 11, resistance R 12, resistance R 16, the resistance R 17 of resistance R 2, resistance R 4, resistance R 8, diode D3 respectively; The negative pole of direct supply is connected with the negative electrode of the normally opened contact JK of the normally closed contact JB of the emitter of the anode of capacitor C 1, resistance R 3, resistance R 6, stabilivolt DW, resistance R 7, capacitor C 2, resistance R 9, triode T, relay J, relay J, capacitor C 3, resistance R 13, resistance R 14, capacitor C 4, controllable silicon 3CT respectively.
Described inductance L 2 vacant terminations have capacitor C 0, and the other end of capacitor C 0 is connected with inductance L 3 vacant ends.
Described inductance L 2 vacant terminations have resistance R 0, and the other end of resistance R 0 is connected with inductance L 3 vacant ends.
Owing to adopted above-mentioned structure, the electric spark sensor of the utility model highly sensitive, anti-interference good, security is good.In addition, it is simple in structure, has very strong practicality and promotional value, can be widely used in family, the electric fire disaster monitoring protection that public place etc. are located.
Description of drawings
Fig. 1 is the circuit diagram of electric spark sensor.
Embodiment
Be described in further detail below in conjunction with the embodiment of accompanying drawing the utility model.
As shown in Figure 1; The described electric spark sensor of the utility model; One end of its inductance L 2 vacant (not being connected) with any element; The other end is connected with the anode of diode D0, and the other end of diode D0 and resistance R 1 are joined, the other end of resistance R 1 respectively with capacitor C 1, resistance R 2, resistance R 3, operational amplifier A 1+mutually input end, operational amplifier A 2-the phase input end is connected; One end of inductance L 3 vacant (not being connected) with any element, the other end is connected with dc power cathode; One end of resistance R 4 respectively with operational amplifier A 1-end of input end, resistance R 5 connects mutually; The other end of resistance R 5 respectively with operational amplifier A 2+end of input end, resistance R 6 connects mutually; The anode of operational amplifier A 1 output terminal and diode D1 joins, the negative electrode of diode D1 respectively with operational amplifier A 3+negative electrode, the positive pole of stabilivolt DW, an end of resistance R 7, an end of capacitor C 2 of input end, diode D2 are connected mutually; The output terminal of operational amplifier A 2 is connected with the anode of diode D2; One end of resistance R 8 respectively with operational amplifier A 3-end of input end, resistance R 9 links to each other mutually; The output terminal of operational amplifier A 3 is connected with an end of resistance R 10, and the other end of resistance R 10 is connected with the base stage of triode T, and the anode of diode D3 is connected with coil one end of relay J, the collector of triode T respectively; One end of resistance R 11 respectively with operational amplifier A 4+end, an end of capacitor C 3 of the normally closed contact JB of input end, relay J are connected mutually; One end of resistance R 12 respectively with operational amplifier A 4-end of input end, resistance R 13 is connected mutually; The output terminal of operational amplifier A 4 is connected with an end of resistance R 15, and the other end of resistance R 15 is connected with an end of resistance R 14, an end of capacitor C 4, the trigger electrode of controllable silicon 3CT respectively; One end of resistance R 16 and the negative of light emitting diode LD1 join, and the other end of light emitting diode LD1 is connected with joint one end of often opening of relay J K; The anode of dc power anode and diode D4 joins, and the negative electrode of diode D4 is connected with negative electrode, an end of relay J coil, resistance R 11, resistance R 12, resistance R 16, the resistance R 17 of resistance R 2, resistance R 4, resistance R 8, diode D3 respectively; The negative pole of direct supply is connected with the negative electrode of the normally opened contact JK of the normally closed contact JB of the emitter of the anode of capacitor C 1, resistance R 3, resistance R 6, stabilivolt DW, resistance R 7, capacitor C 2, resistance R 9, triode T, relay J, relay J, capacitor C 3, resistance R 13, resistance R 14, capacitor C 4, controllable silicon 3CT respectively.
Described inductance L 2 vacant terminations have capacitor C 0, and the other end of capacitor C 0 is connected with inductance L 3 vacant ends.
The vacant end of described inductance L 2 also can connecting resistance R0 (not drawing among the figure), and the other end of resistance R 0 is connected with inductance L 3 vacant ends.
The principle of work of the utility model.
1, when the load current normal flow after inductance L 1; The electric signal of responding at inductance L 2, inductance L 3 coils (voltage) is after the filter action of diode D0, resistance R 1, capacitor C 1, and the voltage at capacitor C 1 two ends can not surpass the windows based voltage that operational amplifier A 1, operational amplifier A 2 are formed, and diode D1, diode D2 instead end partially; At this moment; Operational amplifier A 3+the phase input end is lower than-the phase input end, operational amplifier A 3 output electronegative potentials, and triode T ends; The relay J outage, the normally closed contact JB of relay J is with capacitor C 3 short circuits.At this moment; Operational amplifier A 4+phase input end current potential is lower than-the phase input end; Operational amplifier A 4 output electronegative potentials, controllable silicon 3CT triggerless electric current and be in cut-off state, switch S output noble potential; Light emitting diode LD1 fault electric spark confirms that pilot lamp goes out, and light emitting diode LD2 electric spark detection pilot lamp is cut off by the normally opened contact JK of relay J and extinguishes.
The electric current that in case 2 circuits, switch, socket electric leakage puncture or loose contact produces electric spark (electric arc) through inductance L 1 sense inductance L 2, inductance L 3 coil two ends produce irregular pulse high-voltage; Make the window comparison current potential of the current potential at capacitor C 1 two ends above operational amplifier A 1, operational amplifier A 2 compositions; Operational amplifier A 1, operational amplifier A 2 output noble potentials to capacitor C 2 chargings make operational amplifier A 3+the phase input end is higher than-the phase input end; Operational amplifier A 3 output noble potentials, triode T conducting, relay J energising adhesive; The normally closed contact JB of relay J opens; Resistance R 11 is to capacitor C 3 charging (pulse signal that produces because of electric spark is continuous, is single of short duration and normally start the spark signal that electrical appliance produces), after time-delay a period of time the current potential of capacitor C 3 make operational amplifier A 4+the phase input end is higher than-the phase input end; Operational amplifier A 4 output noble potentials trigger controllable silicon 3CT conducting; Switch S output electronegative potential is connected alerting signal or is cut off the electricity supply, and light emitting diode LD1 fault electric spark confirms that pilot lamp is bright, and light emitting diode LD2 electric spark detects pilot lamp and connected bright by the normally opened contact JK of relay J.
When strong the interference appears in the external world, between zero line N and live wire L, increase capacitor C S, the effect of capacitor C S is to improve antijamming capability.
In a word; The above-mentioned preferred implementation though the utility model has been given an example; But should explain; Though those skilled in the art can carry out various variations and remodeling,, otherwise all should be included in the protection domain of the utility model only if such variation and remodeling have departed from the scope of the utility model.
Claims (3)
1. electric spark sensor; It is characterized in that: an end of inductance L 2 is vacant; The other end is connected with the anode of diode D0; The other end of diode D0 and resistance R 1 are joined, the other end of resistance R 1 respectively with capacitor C 1, resistance R 2, resistance R 3, operational amplifier A 1+mutually input end, operational amplifier A 2-the phase input end is connected; One end of inductance L 3 is vacant, and the other end is connected with dc power cathode; One end of resistance R 4 respectively with operational amplifier A 1-end of input end, resistance R 5 connects mutually; The other end of resistance R 5 respectively with operational amplifier A 2+end of input end, resistance R 6 connects mutually; The anode of operational amplifier A 1 output terminal and diode D1 joins, the negative electrode of diode D1 respectively with operational amplifier A 3+negative electrode, the positive pole of stabilivolt DW, an end of resistance R 7, an end of capacitor C 2 of input end, diode D2 are connected mutually; The output terminal of operational amplifier A 2 is connected with the anode of diode D2; One end of resistance R 8 respectively with operational amplifier A 3-end of input end, resistance R 9 links to each other mutually; The output terminal of operational amplifier A 3 is connected with an end of resistance R 10, and the other end of resistance R 10 is connected with the base stage of triode T, and the anode of diode D3 is connected with coil one end of relay J, the collector of triode T respectively; One end of resistance R 11 respectively with operational amplifier A 4+end, an end of capacitor C 3 of the normally closed contact JB of input end, relay J are connected mutually; One end of resistance R 12 respectively with operational amplifier A 4-end of input end, resistance R 13 is connected mutually; The output terminal of operational amplifier A 4 is connected with an end of resistance R 15, and the other end of resistance R 15 is connected with an end of resistance R 14, an end of capacitor C 4, the trigger electrode of controllable silicon 3CT respectively; One end of resistance R 16 and the negative of light emitting diode LD1 join, and the other end of light emitting diode LD1 is connected with joint one end of often opening of relay J K; The anode of dc power anode and diode D4 joins, and the negative electrode of diode D4 is connected with negative electrode, an end of relay J coil, resistance R 11, resistance R 12, resistance R 16, the resistance R 17 of resistance R 2, resistance R 4, resistance R 8, diode D3 respectively; The negative pole of direct supply is connected with the negative electrode of the normally opened contact JK of the normally closed contact JB of the emitter of the anode of capacitor C 1, resistance R 3, resistance R 6, stabilivolt DW, resistance R 7, capacitor C 2, resistance R 9, triode T, relay J, relay J, capacitor C 3, resistance R 13, resistance R 14, capacitor C 4, controllable silicon 3CT respectively.
2. according to the described electric spark sensor of claim 1, it is characterized in that: described inductance L 2 vacant terminations have capacitor C 0, and the other end of capacitor C 0 is connected with inductance L 3 vacant ends.
3. according to the described electric spark sensor of claim 1, it is characterized in that: described inductance L 2 vacant terminations have resistance R 0, and the other end of resistance R 0 is connected with inductance L 3 vacant ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202178072U CN202110210U (en) | 2011-06-24 | 2011-06-24 | Electric spark sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202178072U CN202110210U (en) | 2011-06-24 | 2011-06-24 | Electric spark sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202110210U true CN202110210U (en) | 2012-01-11 |
Family
ID=45435655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202178072U Expired - Fee Related CN202110210U (en) | 2011-06-24 | 2011-06-24 | Electric spark sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202110210U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114527192A (en) * | 2022-04-22 | 2022-05-24 | 海安迪斯凯瑞探测仪器有限公司 | Formula electric spark detector is blocked safely |
-
2011
- 2011-06-24 CN CN2011202178072U patent/CN202110210U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114527192A (en) * | 2022-04-22 | 2022-05-24 | 海安迪斯凯瑞探测仪器有限公司 | Formula electric spark detector is blocked safely |
| CN114527192B (en) * | 2022-04-22 | 2022-06-21 | 海安迪斯凯瑞探测仪器有限公司 | Formula electric spark detector is blocked safely |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120111 Termination date: 20140624 |
|
| EXPY | Termination of patent right or utility model |