CN107276030A - A kind of safety electric shock-prevention socket circuit - Google Patents
A kind of safety electric shock-prevention socket circuit Download PDFInfo
- Publication number
- CN107276030A CN107276030A CN201710489662.3A CN201710489662A CN107276030A CN 107276030 A CN107276030 A CN 107276030A CN 201710489662 A CN201710489662 A CN 201710489662A CN 107276030 A CN107276030 A CN 107276030A
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- China
- Prior art keywords
- module
- connection
- chip
- diode
- relay
- 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
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H5/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
- H02H5/12—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to undesired approach to, or touching of, live parts by living beings
Abstract
The invention discloses a kind of safety electric shock-prevention socket circuit, including mains supply, step-down rectifier module, Voltage stabilizing module, the full detection module in area, relay switch and power failure alarm module, it is characterized in that, the mains supply connects step-down rectifier module and socket respectively, the output end of step-down rectifier module is also connected with Voltage stabilizing module, the output end of Voltage stabilizing module connects safety detection module, relay switch and power failure alarm module, relay switch connection relay switch respectively.Safety electric shock-prevention socket circuit structure of the present invention is simple, component is few, safety detection element is used as by the use of induced electricity pole piece and voltage comparator, it can be automatically powered off when human hand removes unplugg, prevent the generation of electric shock accidents, simultaneity factor is also added into power failure alarm module, and this module does not need single power supply to power, alarm can be sent in the case of mains failure, therefore have the advantages that cost is low, security performance is high and easy to use.
Description
Technical field
The present invention relates to a kind of socket, specifically a kind of safety electric shock-prevention socket circuit.
Background technology
Electric energy is one of most important energy during people live, and various household electrical appliance all be unable to do without electric energy, and socket is exactly
The electronic equipment that electric energy in power network is allocated, socket is most commonly used electric in people's daily life and industrial production
Element, it can complete line voltage and join to the electric energy of electrical equipment, and existing socket is big multi-functional single, and minority is with guarantor
Inside the socket of protective function to use fuse structure, people may be because of carrying when plugging the plug of electrical equipment on hand more
Water or imprudence are touched plug and got an electric shock, and cause serious harm.
The content of the invention
It is an object of the invention to provide a kind of safety electric shock-prevention socket circuit, to solve what is proposed in above-mentioned background technology
Problem.
To achieve the above object, the present invention provides following technical scheme：
A kind of safety electric shock-prevention socket circuit, including mains supply, step-down rectifier module, Voltage stabilizing module, area's full inspection survey mould
Block, relay switch and power failure alarm module, it is characterised in that the mains supply connects step-down rectifier module and inserted respectively
Seat, the output end of step-down rectifier module is also connected with Voltage stabilizing module, the output end of Voltage stabilizing module connect respectively safety detection module, after
Electric switch and power failure alarm module, relay switch connection relay switch, relay switch are also respectively connected with power failure alarm
Module and socket.
It is used as the preferred scheme of the present invention：The step-down rectifier module includes transformer W, rectifier bridge T and transient voltage presses down
Diode DW processed, Voltage stabilizing module includes chip IC 1 and electric capacity C1, and safety detection module includes induced electricity pole piece M, metal-oxide-semiconductor Q1, core
Piece IC1 and potentiometer RP1, relay switch includes triode V1 and relay K, the winding N1 of the transformer W one end connect
Contact relay K contact K-1 and 220V alternating current, relay K contact K-1 other end connection socket A, socket A's is another
The end connection transformer W winding N1 other end, transformer W winding N2 one end connection transient voltage suppressor diode DW and
Rectifier bridge T port 1, the rectifier bridge T connection transient voltage suppressor diode DW of port 3 other end and transformer W winding
The N2 other end, rectifier bridge T the connection electric capacity C1 of port 2 and the pin 1 of chip IC 1, the connection of pin 3 of chip IC 1, which has a power failure, to be reported
Alert module, resistance R1, diode D2 negative electrode, a potentiometer RP1 fixing end and relay K, the pin 2 of chip IC 1 connect
Connect the electric capacity C1 other end, electric capacity C2, electric capacity C3, potentiometer RP1 another fixing end, FET Q1 source electrode, rectification
Bridge T port 4 and triode V1 emitter stage, resistance R1 other end connection FET Q1 drain electrode, electric capacity C3 it is another
End and the pin 3 of chip IC 2, FET Q1 grid connection induced electricity pole piece M, the connection potentiometer of pin 1 of chip IC 2
RP1 sliding end, the connection diode of pin 4 D1 of chip IC 2 anode, diode D1 negative electrode connection resistance R2, resistance R2
Other end connecting triode V1 base stage and the electric capacity C2 other end, triode V1 colelctor electrode connection diode D2 anode
With the relay K other end.
It is used as the preferred scheme of the present invention：The model LM7805 of the chip IC 1, the model LM321 of chip IC 2.
It is used as the preferred scheme of the present invention：The power failure alarm module includes resistance R3, resistance R4, diode D3, three poles
Pipe V2 and loudspeaker B, resistance R3 one end connection diode D3 anode and power supply VCC, resistance R3 other end connecting triode
V2 base stage, triode V2 emitter stage connection resistance R4, resistance the R4 other end connection diode D3 negative electrode and electric capacity C4,
Triode V2 colelctor electrode connection loudspeaker B, loudspeaker the B other end connection electric capacity C4 other end and ground.
It is used as the preferred scheme of the present invention：The relay K is normally-closed contact relay.
It is used as the preferred scheme of the present invention：The diode D2 is voltage-regulator diode.
It is used as the preferred scheme of the present invention：The power supply VCC is 3 pin output voltages of chip IC 1.
Compared with prior art, the beneficial effects of the invention are as follows：Safety electric shock-prevention socket circuit structure of the present invention is simple, member
Device is few, can be from dynamic circuit breaker when human hand removes unplugg by the use of induced electricity pole piece and voltage comparator as safety detection element
Electricity, prevents the generation of electric shock accidents, simultaneity factor is also added into power failure alarm module, and this module does not need single power supply to supply
Electricity, can send alarm in the case of mains failure, thus with cost is low, that security performance is high and easy to use is excellent
Point.
Brief description of the drawings
Fig. 1 is the block diagram of safety electric shock-prevention socket circuit.
Fig. 2 is the circuit diagram of an embodiment of the present invention.
Fig. 3 is the circuit diagram of power failure alarm module.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Refer to Fig. 1-3, a kind of safety electric shock-prevention socket circuit, including mains supply, step-down rectifier module, voltage stabilizing mould
Block, the full detection module in area, relay switch and power failure alarm module, it is characterised in that the mains supply connects decompression respectively
Rectification module and socket, the output end of step-down rectifier module are also connected with Voltage stabilizing module, and the output end of Voltage stabilizing module connects peace respectively
Full detection module, relay switch and power failure alarm module, relay switch connection relay switch, relay switch are also distinguished
Connect power failure alarm module and socket.
Step-down rectifier module includes transformer W, rectifier bridge T and transient voltage suppressor diode DW, and Voltage stabilizing module includes core
Piece IC1 and electric capacity C1, safety detection module includes induced electricity pole piece M, metal-oxide-semiconductor Q1, chip IC 1 and potentiometer RP1, and relay is opened
The contact K-1 and 220V for closing one end connection relay K for including triode V1 and relay K, the winding N1 of the transformer W are handed over
Stream electricity, relay K contact the K-1 other end connection socket A, socket the A other end connection transformer W winding N1's is another
End, transformer W winding N2 one end connects transient voltage suppressor diode DW and rectifier bridge T port 1, rectifier bridge T end
Mouth 3 connects the transient voltage suppressor diode DW other end and transformer W winding the N2 other end, and rectifier bridge T port 2 connects
Meet electric capacity C1 and the pin 1 of chip IC 1, the connection power failure of pin 3 alarm module, resistance R1, diode D2 the moon of chip IC 1
Pole, a potentiometer RP1 fixing end and relay K, the connection electric capacity of pin 2 C1 of chip IC 1 other end, electric capacity C2, electricity
Hold C3, potentiometer RP1 another fixing end, FET Q1 source electrode, rectifier bridge T port 4 and triode V1 transmitting
Pole, the resistance R1 other end connects the pin 3 of FET Q1 drain electrode, the electric capacity C3 other end and chip IC 2, FET
Q1 grid connection induced electricity pole piece M, the connection potentiometer of pin 1 RP1 of chip IC 2 sliding end, the pin 4 of chip IC 2 connects
Connect diode D1 anode, diode D1 negative electrode connection resistance R2, resistance R2 other end connecting triode V1 base stage and
The electric capacity C2 other end, triode V1 colelctor electrode connection diode D2 anode and the relay K other end.
The model LM7805 of chip IC 1, the model LM321 of chip IC 2.
The power failure alarm module includes resistance R3, resistance R4, diode D3, triode V2 and loudspeaker B, the one of resistance R3
End connection diode D3 anode and power supply VCC, resistance R3 other end connecting triode V2 base stage, triode V2 transmitting
Pole connects resistance R4, the resistance R4 other end connection diode D3 negative electrode and electric capacity C4, triode V2 colelctor electrode connection loudspeaker
B, loudspeaker the B other end connection electric capacity C4 other end and ground.
Relay K is normally-closed contact relay.Diode D2 is voltage-regulator diode.Power supply VCC is defeated for 3 pin of chip IC 1
Go out voltage.
The present invention operation principle be：As a kind of embodiment of the present invention, its physical circuit is as shown in Fig. 2 220V cities
Piezoelectric voltage provides steady after transformer W decompressions, rectifier bridge T rectifications, electric capacity C1 filtering, three terminal regulator IC1 voltage stabilizings to circuit
Transient voltage suppressor diode DW in fixed DC voltage, circuit is used to eliminate the peak voltage that city's electro-mechanical wave is produced, increase
The stability of circuit, usually, technotron V1 are in zero inclined state, and the resistance between its leakage, source is smaller, with drain D phase
The integrated operational amplifier IC1 even pin current potential of in-phase input end 3 is relatively low.By the pin current potential potentiometer RP1 of inverting input 1
The a little higher than pin of in-phase input end 3 is adjusted to, so, the output low level of chip IC 1, transistor V2 cut-offs, relay K is failure to actuate, inserted
Seat A persistently it is electric.When human hand removes to pull out plug, body will be felt first close to induced electricity pole piece M, FET Q1 grid Gs
The electric signal of human body should be arrived, at this moment the resistance value increase between leakage, source, makes the homophase input terminal voltage of chip IC 1 higher than anti-phase defeated
Enter terminal voltage, the output high level of chip IC 1, V1 conductings, relay K adhesives immediately, and make at the power outlet A of normally closed point connection
In off-position, so, the metal part of plug is touched even if human hand will not also get an electric shock.
Power failure warning circuit is as shown in figure 3, it is acted on particular by electric capacity C4 energy storage, with reference to triode V2 conducting
What characteristic was realized, when VCC has electricity, due to p-type triode V2 on state characteristic, its base stage has higher voltage, therefore V2 is not
Conducting, loudspeaker B is injustice, and now electric capacity C4 is in charged state, and when running into VCC power-off, V2 base voltage is disappeared, and V2 is led
Logical, now electric capacity C4 voltage is powered by resistance R4 and triode V2 to loudspeaker B, and loudspeaker B sends alarm.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit is required rather than described above is limited, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.Any reference in claim should not be considered as to the claim involved by limitation.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that for clarity, those skilled in the art should
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It may be appreciated other embodiment.
Claims (7)
1. a kind of safety electric shock-prevention socket circuit, including mains supply, step-down rectifier module, Voltage stabilizing module, the full detection module in area,
Relay switch and power failure alarm module, it is characterised in that the mains supply connects step-down rectifier module and socket respectively, drop
The output end of repoussage flow module is also connected with Voltage stabilizing module, and the output end of Voltage stabilizing module connects safety detection module, relay respectively
Switch and power failure alarm module, relay switch connection relay switch, relay switch are also respectively connected with power failure alarm module
And socket.
2. a kind of safety electric shock-prevention socket circuit according to claim 1, it is characterised in that the step-down rectifier module bag
Transformer W, rectifier bridge T and transient voltage suppressor diode DW are included, Voltage stabilizing module includes chip IC 1 and electric capacity C1, safety detection
Module includes induced electricity pole piece M, metal-oxide-semiconductor Q1, chip IC 1 and potentiometer RP1, and relay switch includes triode V1 and relay
K, the winding N1 of the transformer W one end connection relay K contact K-1 and 220V alternating current, relay K contact K-1
The other end connection socket A, socket A other end connection transformer W winding N1 the other end, transformer W winding N2's
One end connects transient voltage suppressor diode DW and rectifier bridge T port 1, and the rectifier bridge T connection transient voltage of port 3 suppresses two
The other end of the pole pipe DW other end and transformer W winding N2, the rectifier bridge T connection electric capacity C1 of port 2 and drawing for chip IC 1
Pin 1, the connection power failure of pin 3 alarm module of chip IC 1, resistance R1, diode D2 negative electrode, a potentiometer RP1 fixation
End and relay K, the connection of the pin 2 electric capacity C1 of chip IC 1 other end, electric capacity C2, electric capacity C3, potentiometer RP1 another
Fixing end, FET Q1 source electrode, rectifier bridge T port 4 and triode V1 emitter stage, resistance R1 other end connection field
The pin 3 of effect pipe Q1 drain electrode, the electric capacity C3 other end and chip IC 2, FET Q1 grid connection induced electricity pole piece
M, the connection potentiometer of pin 1 RP1 of chip IC 2 sliding end, the connection diode of pin 4 D1 of chip IC 2 anode, diode
D1 negative electrode connection resistance R2, the resistance R2 other end connecting triode V1 base stage and the electric capacity C2 other end, triode V1
Colelctor electrode connection diode D2 anode and the relay K other end.
3. a kind of safety electric shock-prevention socket circuit according to claim 2, it is characterised in that the relay K is normally closed
Contact relay.
4. a kind of safety electric shock-prevention socket circuit according to claim 2, it is characterised in that the diode D2 is voltage stabilizing
Diode.
5. a kind of safety electric shock-prevention socket circuit according to claim 2, it is characterised in that the model of the chip IC 1
For LM7805, the model LM321 of chip IC 2.
6. a kind of safety electric shock-prevention socket circuit according to claim 2, it is characterised in that the power failure alarm module bag
Include resistance R3, resistance R4, diode D3, triode V2 and loudspeaker B, resistance R3 one end connection diode D3 anode and power supply
VCC, resistance the R3 other end connecting triode V2 base stage, triode V2 emitter stage connection resistance R4, resistance R4's is another
End connection diode D3 negative electrode and electric capacity C4, triode V2 colelctor electrode connection loudspeaker B, loudspeaker B other end connection electric capacity
The C4 other end and ground.
7. a kind of safety electric shock-prevention socket circuit according to claim 6, it is characterised in that the power supply VCC is chip
IC1 3 pin output voltages.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710489662.3A CN107276030A (en) | 2017-06-24 | 2017-06-24 | A kind of safety electric shock-prevention socket circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710489662.3A CN107276030A (en) | 2017-06-24 | 2017-06-24 | A kind of safety electric shock-prevention socket circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107276030A true CN107276030A (en) | 2017-10-20 |
Family
ID=60068862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710489662.3A Pending CN107276030A (en) | 2017-06-24 | 2017-06-24 | A kind of safety electric shock-prevention socket circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107276030A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109765982A (en) * | 2019-01-30 | 2019-05-17 | 青岛黄海学院 | A kind of power circuit for computer |
| CN110429797A (en) * | 2018-04-27 | 2019-11-08 | 深圳市必易微电子有限公司 | Exchange turns direct-current switch power supply protection against electric shock circuit |
| CN116224818A (en) * | 2023-05-10 | 2023-06-06 | 深圳市创诺新电子科技有限公司 | Control method and control device of household power system and household power system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203225509U (en) * | 2013-05-06 | 2013-10-02 | 傅华英 | Human body electric shock safety control module |
| CN204615091U (en) * | 2015-04-29 | 2015-09-02 | 深圳市菲德越科技有限公司 | One is rationed the power supply protection socket circuit |
| CN205752815U (en) * | 2016-05-16 | 2016-11-30 | 国家电网公司 | A kind of safety electric shock-prevention socket circuit |
| CN206135384U (en) * | 2016-08-23 | 2017-04-26 | 淮安信息职业技术学院 | DC power supply short -circuit protective device(SCPD) |
-
2017
- 2017-06-24 CN CN201710489662.3A patent/CN107276030A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203225509U (en) * | 2013-05-06 | 2013-10-02 | 傅华英 | Human body electric shock safety control module |
| CN204615091U (en) * | 2015-04-29 | 2015-09-02 | 深圳市菲德越科技有限公司 | One is rationed the power supply protection socket circuit |
| CN205752815U (en) * | 2016-05-16 | 2016-11-30 | 国家电网公司 | A kind of safety electric shock-prevention socket circuit |
| CN206135384U (en) * | 2016-08-23 | 2017-04-26 | 淮安信息职业技术学院 | DC power supply short -circuit protective device(SCPD) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110429797A (en) * | 2018-04-27 | 2019-11-08 | 深圳市必易微电子有限公司 | Exchange turns direct-current switch power supply protection against electric shock circuit |
| CN109765982A (en) * | 2019-01-30 | 2019-05-17 | 青岛黄海学院 | A kind of power circuit for computer |
| CN116224818A (en) * | 2023-05-10 | 2023-06-06 | 深圳市创诺新电子科技有限公司 | Control method and control device of household power system and household power system |
| CN116224818B (en) * | 2023-05-10 | 2023-09-08 | 深圳市创诺新电子科技有限公司 | Control method and control device of household power system and household power system |
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| Date | Code | Title | Description |
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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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171020 |