CN107290617A - A kind of receptacle grounds electric-leakage detection circuit - Google Patents
A kind of receptacle grounds electric-leakage detection circuit Download PDFInfo
- Publication number
- CN107290617A CN107290617A CN201710634988.0A CN201710634988A CN107290617A CN 107290617 A CN107290617 A CN 107290617A CN 201710634988 A CN201710634988 A CN 201710634988A CN 107290617 A CN107290617 A CN 107290617A
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- CN
- China
- Prior art keywords
- ground
- pin
- chip
- battery
- detection circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
- H01R24/20—Coupling parts carrying sockets, clips or analogous contacts and secured only to wire or cable
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
- Emergency Alarm Devices (AREA)
Abstract
The invention discloses a kind of receptacle grounds electric-leakage detection circuit, pierce circuit, light emitting diode, the loudspeaker being made up of base chip when diode D1 formation rectification circuit, opto-coupler chip, 555, household electrical appliance can be monitored in the drain conditions using process, if there is electric leakage, sound and light alarm is carried out, warns user to check leak current fault after providing vigilant and power-off, ensure personal safety, circuit is simple, easily realizes, has a good application prospect.
Description
Technical field
The present invention relates to electronic circuit technology field, and in particular to a kind of receptacle grounds electric-leakage detection circuit.
Background technology
With the fast development of electronics technology, household electrical appliance are also widely applied.At present, some powerful family expenses
Electrical equipment, such as washing machine, electric heater, refrigerator, air-conditioning can produce leaky because of housing defective insulation, the lighter's fiber crops hand, severe one
Security incident can be caused, there is potential safety hazard.How to design a socket, can monitor household electrical appliance in use whether
Electric leakage, when leaking electricity, can sound and light alarm, be current urgent problem.
The content of the invention
The purpose of the present invention is to overcome existing socket, it is impossible to monitor household electrical appliance asking in the drain conditions using process
Topic.The receptacle grounds electric-leakage detection circuit of the present invention, can monitor household electrical appliance in the drain conditions using process, if there is leakage
Electricity, carries out sound and light alarm, warns user to check leak current fault after providing vigilant and power-off, it is ensured that personal safety, circuit is simple, holds
Easily realize, have a good application prospect.
In order to achieve the above object, the technical solution adopted in the present invention is：
A kind of receptacle grounds electric-leakage detection circuit, includes three-phase socket J1, the three-phase socket J1 zero terminal and civil power
Zero line is connected, and the fire line terminal of the three-phase socket J1 is connected with the live wire of civil power, it is characterised in that：The three-phase socket
J1 ground terminal is connected with the first ground, and is connected with diode D1 positive pole, and the negative pole of the diode D1 passes through electricity
Resistance R1 is connected with opto-coupler chip U1 positive input terminal, and the negative input end of the opto-coupler chip U1 is connected with the first ground, described
Opto-coupler chip U1 positive output end is connected with battery G1 positive pole, and the negative output terminal of the opto-coupler chip U1 is with passing through resistance
R2 is connected with battery G1 negative pole, and the negative pole of the battery G1 is connected with the second ground, and the opto-coupler chip U1's is negative
Fourth pin of the output end also with base chip U2 when 555 is connected, base chip U2 the 8th pin and battery G1 when described 555
Positive pole be connected, base chip U2 the 7th pin is connected by resistance R3 with battery G1 positive pole when described 555, described
When 555 base chip U2 the 7th pin also by resistance R4 with when 555 base chip U2 second and the 6th pin be connected, it is described
Base chip U2 the 6th pin is connected by electric capacity C1 with the second ground of ground when 555, base chip U2 the first pin when described 555
It is connected with the ground of ground second, base chip U2 the 5th pin is connected by electric capacity C2 with second when described 555, when described 555
Base chip U2 the 3rd pin is connected with transistor T1 base stage, and the base stage of the transistor T1 is also with light emitting diode D2's
Positive pole is connected, and the negative pole of the light emitting diode D2 is connected by resistance R5 with the second ground, the transmitting of the transistor T1
Pole is connected with the second ground, and the colelctor electrode of the transistor T1 is connected by loudspeaker M1 with battery G1 positive pole, described
Filter capacitor C3 is parallel between battery G1 positive and negative electrode.
A kind of foregoing receptacle grounds electric-leakage detection circuit, it is characterised in that：The positive pole for stating battery G1 is in series with
Switch S1.
A kind of foregoing receptacle grounds electric-leakage detection circuit, it is characterised in that：The voltage for stating battery G1 is 9V.
A kind of foregoing receptacle grounds electric-leakage detection circuit, it is characterised in that：The model for stating opto-coupler chip U1
P521。
A kind of foregoing receptacle grounds electric-leakage detection circuit, it is characterised in that：First ground, the second ground are two independences
Ground.
A kind of foregoing receptacle grounds electric-leakage detection circuit, it is characterised in that：The loudspeaker M1 power is 8W.
A kind of foregoing receptacle grounds electric-leakage detection circuit, it is characterised in that：The light emitting diode D2 is emitting red light
Diode.
The beneficial effects of the invention are as follows：The receptacle grounds electric-leakage detection circuit of the present invention, passes through diode D1 formation rectifications
Pierce circuit, light emitting diode, the loudspeaker of base chip composition, can monitor household electrical appliance when circuit, opto-coupler chip, 555
In the drain conditions using process, if there is electric leakage, sound and light alarm is carried out, warns user to check electric leakage after providing vigilant and power-off
Failure, it is ensured that personal safety, circuit is simple, easily realizes, has a good application prospect.
Brief description of the drawings
Fig. 1 is the circuit diagram of the receptacle grounds electric-leakage detection circuit of the present invention.
Embodiment
Below in conjunction with Figure of description, the present invention is further illustrated.
As shown in figure 1, the receptacle grounds electric-leakage detection circuit of the present invention, including three-phase socket J1, the three-phase socket J1
Zero terminal be connected with the zero line of civil power, the fire line terminal of the three-phase socket J1 is connected with the live wire of civil power, described
Three-phase socket J1 ground terminal is connected with the first ground, and is connected with diode D1 positive pole, and the diode D1's is negative
Pole is connected by resistance R1 with opto-coupler chip U1 positive input terminal, and the negative input end of the opto-coupler chip U1 is connected with the first ground
Connect, the positive output end of the opto-coupler chip U1 is connected with battery G1 positive pole, the negative output terminal of the opto-coupler chip U1 with
It is connected by resistance R2 with battery G1 negative pole, the negative pole of the battery G1 is connected with the second ground, the optocoupler core
Fourth pin of the piece U1 negative output terminal also with base chip U2 when 555 is connected, when described 555 base chip U2 the 8th pin with
Battery G1 positive pole is connected, the positive pole phase that base chip U2 the 7th pin passes through resistance R3 and battery G1 when described 555
Connection, base chip U2 the 7th pin also passes through resistance R4 and base chip U2 when 555 second and the 6th pin phase when described 555
Connection, base chip U2 the 6th pin is connected by electric capacity C1 with the second ground of ground when described 555, base chip U2 when described 555
The first pin with ground the second ground be connected, base chip U2 the 5th pin is connected by electric capacity C2 with second when described 555,
Base chip U2 the 3rd pin is connected with transistor T1 base stage when described 555, and the base stage of the transistor T1 is also with lighting
Diode D2 positive pole is connected, and the negative pole of the light emitting diode D2 is connected by resistance R5 with the second ground, the crystal
Pipe T1 emitter stage is connected with the second ground, the positive pole phase that the colelctor electrode of the transistor T1 passes through loudspeaker M1 and battery G1
Filter capacitor C3 is parallel between connection, the positive and negative electrode of the battery G1.
It is preferred that, the positive pole for stating battery G1 be in series with switch S1, it is preferred that it is described state battery G1 voltage be
9V。
It is preferred that, the model P521 for stating opto-coupler chip U1.
It is preferred that, first ground, the second ground are two independent ground, it is ensured that security performance.
It is preferred that, the loudspeaker M1 power is 8W, it is ensured that alarm sound.
It is preferred that, the light emitting diode D2 is red light emitting diodes, alarms more eye-catching, is easy to user to see.
The receptacle grounds electric-leakage detection circuit of the present invention, operation principle is as follows：Pass through diode D1 formation rectification circuit, light
Pierce circuit, light emitting diode, the loudspeaker of base chip composition when coupling chip, 555, when household electrical appliance leak electricity
Wait, leakage current can from the grounding resistance of socket by diode D1, opto-coupler chip, be transported to 555 when base chip U2 on, 555
When base chip U2 be triggered after, light light emitting diode D2, and loudspeaker M1 is sent alarm, warn user provide it is vigilant and
Leak current fault is checked after power-off, it is ensured that personal safety.
In summary, receptacle grounds electric-leakage detection circuit of the invention, passes through diode D1 formation rectification circuit, optocoupler core
Pierce circuit, light emitting diode, the loudspeaker of base chip composition when piece, 555, can monitor household electrical appliance using process
Drain conditions, if there is electric leakage, carry out sound and light alarm, warn user to check leak current fault after providing vigilant and power-off, it is ensured that people
Body safety, circuit is simple, easily realizes, has a good application prospect.
General principle, principal character and the advantage of the present invention has been shown and described above.The technical staff of the industry should
Understand, the present invention is not limited to the above embodiments, the original for simply illustrating the present invention described in above-described embodiment and specification
Reason, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes and improvements
It all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by appended claims and its equivalent circle
It is fixed.
Claims (7)
1. a kind of receptacle grounds electric-leakage detection circuit, including three-phase socket J1, the zero terminal and civil power of the three-phase socket J1
Zero line be connected, the fire line terminal of the three-phase socket J1 is connected with the live wire of civil power, it is characterised in that：The three-phase is inserted
Seat J1 ground terminal is connected with the first ground, and is connected with diode D1 positive pole, and the negative pole of the diode D1 passes through
Resistance R1 is connected with opto-coupler chip U1 positive input terminal, and the negative input end of the opto-coupler chip U1 is connected with the first ground, institute
The positive output end for stating opto-coupler chip U1 is connected with battery G1 positive pole, and the negative output terminal of the opto-coupler chip U1 is with passing through electricity
Resistance R2 is connected with battery G1 negative pole, and the negative pole of the battery G1 is connected with the second ground, the opto-coupler chip U1's
Fourth pin of the negative output terminal also with base chip U2 when 555 is connected, base chip U2 the 8th pin and battery when described 555
G1 positive pole is connected, and base chip U2 the 7th pin is connected by resistance R3 with battery G1 positive pole when described 555, institute
When stating 555 base chip U2 the 7th pin also by resistance R4 with when 555 base chip U2 second and the 6th pin be connected, institute
Base chip U2 the 6th pin is connected by electric capacity C1 with the second ground of ground when stating 555, and the first of base chip U2 is drawn when described 555
Pin is connected with the second ground of ground, and base chip U2 the 5th pin is connected by electric capacity C2 with second when described 555, and described 555
When base chip U2 the 3rd pin be connected with transistor T1 base stage, the base stage of the transistor T1 also with light emitting diode D2
Positive pole be connected, the negative pole of the light emitting diode D2 is connected by resistance R5 with the second ground, the hair of the transistor T1
Emitter-base bandgap grading is connected with the second ground, and the colelctor electrode of the transistor T1 is connected by loudspeaker M1 with battery G1 positive pole, institute
Filter capacitor C3 is parallel between the positive and negative electrode for stating battery G1.
2. a kind of receptacle grounds electric-leakage detection circuit according to claim 1, it is characterised in that：It is described to state battery G1's
Positive pole is in series with switch S1.
3. a kind of receptacle grounds electric-leakage detection circuit according to claim 1, it is characterised in that：It is described to state battery G1's
Voltage is 9V.
4. a kind of receptacle grounds electric-leakage detection circuit according to claim 1, it is characterised in that：It is described to state opto-coupler chip U1
Model P521.
5. a kind of receptacle grounds electric-leakage detection circuit according to claim 1, it is characterised in that：First ground, second
Ground is two independent ground.
6. a kind of receptacle grounds electric-leakage detection circuit according to claim 1, it is characterised in that：The loudspeaker M1 power
For 8W.
7. a kind of receptacle grounds electric-leakage detection circuit according to claim 1, it is characterised in that：The light emitting diode D2
For red light emitting diodes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710634988.0A CN107290617A (en) | 2017-07-30 | 2017-07-30 | A kind of receptacle grounds electric-leakage detection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710634988.0A CN107290617A (en) | 2017-07-30 | 2017-07-30 | A kind of receptacle grounds electric-leakage detection circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107290617A true CN107290617A (en) | 2017-10-24 |
Family
ID=60103682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710634988.0A Withdrawn CN107290617A (en) | 2017-07-30 | 2017-07-30 | A kind of receptacle grounds electric-leakage detection circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107290617A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107861016A (en) * | 2017-11-12 | 2018-03-30 | 韦明肯 | One kind ground wire disconnects automatic failure alarm device |
| CN109100656A (en) * | 2018-07-18 | 2018-12-28 | 成都瓦力特新能源技术有限公司 | A kind of battery modules current leakage detection system |
-
2017
- 2017-07-30 CN CN201710634988.0A patent/CN107290617A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107861016A (en) * | 2017-11-12 | 2018-03-30 | 韦明肯 | One kind ground wire disconnects automatic failure alarm device |
| CN109100656A (en) * | 2018-07-18 | 2018-12-28 | 成都瓦力特新能源技术有限公司 | A kind of battery modules current leakage detection system |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20171024 |