CN2762385Y - Intelligent leakage alarm socket - Google Patents
Intelligent leakage alarm socket Download PDFInfo
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- CN2762385Y CN2762385Y CN 200420054817 CN200420054817U CN2762385Y CN 2762385 Y CN2762385 Y CN 2762385Y CN 200420054817 CN200420054817 CN 200420054817 CN 200420054817 U CN200420054817 U CN 200420054817U CN 2762385 Y CN2762385 Y CN 2762385Y
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Abstract
The utility model relates to an intelligent leakage alarm socket, which comprises a power supplying circuit 3 which is connected between a left and a right wiring pins A, B of a triple socket, wherein an electric leakage checking trigger circuit 1 is also connected among a wiring pin C and the left and the right wiring pins A, B in the triple socket, and the power supplying circuit 3 is connected with an acoustic-optic signal generating circuit 2. An input port of the acoustic-optic signal generating circuit 2 is connected with the electric leakage checking trigger circuit 1, and an output port is connected with an alarm executive element so as to form an electric leakage alarm device. The utility model can check leakage current via the electric leakage checking trigger circuit, when electrical appliances leak electricity or the ground resistance of the left and the right wiring pins of the triple socket are over low, the acoustic-optic signal generating circuit can be triggered so as to generate acoustic-optic alarm signals, and the utility model can remind users of increasing security. The utility model can also be made into a form of fixing wall sockets or a form of portable socket boards, and the utility model has the advantages of flexible application and low cost.
Description
Technical field: the utility model relates to a kind of wall socket or mobile socket plate.
Background technology: present household electrical appliance generally require to use three-pin plug, and corresponding socket also all adopts Three-hole socket, are provided with the ground connection mesopore in case leak-stopping electricity generation accident.But when actual installation, many Three-hole sockets are connected loosening or loose contact with ground wire, and general socket can not pointed out warning, occur electric leakage in the household electrical appliances use, do not have alarm signal may allow the user ignore fault, and fail safe is not high enough.
Summary of the invention: at the deficiencies in the prior art, but the utility model provides a kind of intelligent leakage-current alarm socket of the situation sound and light alarm that leaks electricity.
The utility model comprises the left and right leg A that is connected Three-hole socket and the power supply circuits III between the B, also be connected with detection of electrical leakage circuits for triggering I between the middle leg C of Three-hole socket and left and right leg A, the B, power supply circuits III is connected with sound and light signal generation circuit I I, the input of this sound and light signal generation circuit I I connects detection of electrical leakage circuits for triggering I, and output connects the warning executive component and constitutes electric leakage alarm device.
The utility model detects leakage current with the detection of electrical leakage circuits for triggering, when electrical leakage or the left and right leg resistance to earth of Three-hole socket are low excessively, all can trigger sound and light signal generation circuit, produces the sound and light alarm signal, reminds the user, improves fail safe.And the utility model can make the fixed wall socket type, also can be made into mobile socket plate form, applying flexible, and cost is low.
Further specify the utility model below in conjunction with drawings and Examples.
Description of drawings: Fig. 1 is the circuit block diagram of embodiment;
Fig. 2 is the circuit connection diagram of embodiment.
Specific embodiment: as shown in the figure, power supply circuits III is connected between the left and right leg A and B of Three-hole socket, also be connected with detection of electrical leakage circuits for triggering I between the middle leg C of Three-hole socket and left and right leg A, the B, power supply circuits III is connected with sound and light signal generation circuit I I, the input of this sound and light signal generation circuit I I connects detection of electrical leakage circuits for triggering I, and output connects the warning executive component and constitutes electric leakage alarm device.Power supply circuits III can provide the trouble free service power supply to sound and light signal generation circuit I I by rectifying and voltage-stabilizing.The sound and light signal generation circuit I I of present embodiment comprises the intermittent oscillation circuit part IV that is made up of NAND gate L1, L2 and the peripheral element of two series connection, the voicefrequency circuit part of V that the NAND gate L3 by two series connection, L4 that is connected with intermittent oscillation circuit part IV output and peripheral element are formed, LED connects the output of intermittent oscillation circuit part IV, and buzzer F connects the output of voicefrequency circuit part of V.Sound and light signal generation circuit I I triggers back intermittent oscillation circuit part IV and produces frequency of oscillation, control LED flicker frequency, and the news of control audio circuit part V are rung frequency simultaneously, also are buzzer F sound frequency.Four NAND gate of present embodiment are from integrated package 4011 wiring, also available other model integrated package wiring.And as requested, sound and light signal generation circuit I I also can manufacture light signal or voice signal only take place when actual production, and the warning executive component only gets final product with indicator light or buzzer F, and circuit can be simplified more like this, and cost is lower.
Comprise a full-wave rectification part QD among the detection of electrical leakage circuits for triggering I of present embodiment, the left leg A serial connection current-limiting resistance R1 of Three-hole socket and diode VD2 are to the input utmost point of full-wave rectification part QD, the right leg B of Three-hole socket also connects this input utmost point of full-wave rectification part QD by diode VD3, another input utmost point of full-wave rectification part QD is connected to the middle leg C of Three-hole socket by resistance R 2, and the contact of middle leg C and resistance R 2 is by diode VD1 ground connection.The output stage of full-wave rectification part QD connects photoelectric switch IC input, and photoelectric switch IC output is connected with sound and light signal generation circuit I I.Diode VD1 is isolating diode over the ground, can prevent left and right leg A of Three-hole socket or B to the earth-return false alarm, can make leakage current ground connection simultaneously.Full-wave rectification part QD can adopt various rectification circuit, and present embodiment uses integrated package DB107.Closed condition when photoelectric switch IC is flat, sound and light signal generation circuit I I does not work power consumption hardly.When electrical leakage or the left and right leg A of Three-hole socket or B resistance to earth are crossed when low, the leakage current that produces is through full-wave rectification part QD, with photoelectric switch IC conducting, trigger sound and light signal generation circuit I I, make LED and buzzer F send the sound and light alarm signal.
Claims (3)
1, a kind of intelligent leakage-current alarm socket, comprise the left and right leg A that is connected Three-hole socket and the power supply circuits III between the B, it is characterized by: also be connected with detection of electrical leakage circuits for triggering I between the middle leg C of Three-hole socket and left and right leg A, the B, power supply circuits III is connected with sound and light signal generation circuit I I, the input of this sound and light signal generation circuit I I connects detection of electrical leakage circuits for triggering I, and output connects the warning executive component and constitutes electric leakage alarm device.
2, intelligent leakage-current alarm socket according to claim 1, it is characterized by: sound and light signal generation circuit I I comprises the intermittent oscillation circuit part IV that is made up of NAND gate L1, L2 and the peripheral element of two series connection, the voicefrequency circuit part of V that the NAND gate L3 by two series connection, L4 that is connected with intermittent oscillation circuit part IV output and peripheral element are formed, LED connects the output of intermittent oscillation circuit part IV, and buzzer F connects the output of voicefrequency circuit part of V.
3, intelligent leakage-current alarm socket according to claim 1 and 2, it is characterized by: comprise a full-wave rectification part QD among the detection of electrical leakage circuits for triggering I, the left leg A serial connection current-limiting resistance R1 of Three-hole socket and diode VD2 are to the input utmost point of full-wave rectification part QD, the right leg B of Three-hole socket also connects this input utmost point of full-wave rectification part QD by diode VD3, another input utmost point of full-wave rectification part QD is connected to the middle leg C of Three-hole socket by resistance R 2, the contact of middle leg C and resistance R 2 is by diode VD1 ground connection, the output stage of full-wave rectification part QD connects photoelectric switch IC input, and photoelectric switch IC output is connected with sound and light signal generation circuit I I.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420054817 CN2762385Y (en) | 2004-12-28 | 2004-12-28 | Intelligent leakage alarm socket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420054817 CN2762385Y (en) | 2004-12-28 | 2004-12-28 | Intelligent leakage alarm socket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2762385Y true CN2762385Y (en) | 2006-03-01 |
Family
ID=36095500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420054817 Expired - Fee Related CN2762385Y (en) | 2004-12-28 | 2004-12-28 | Intelligent leakage alarm socket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2762385Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109888575A (en) * | 2019-03-05 | 2019-06-14 | 王佳旭 | Electric socket |
-
2004
- 2004-12-28 CN CN 200420054817 patent/CN2762385Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109888575A (en) * | 2019-03-05 | 2019-06-14 | 王佳旭 | Electric socket |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |