CN205752815U - A kind of safety electric shock-prevention socket circuit - Google Patents
A kind of safety electric shock-prevention socket circuit Download PDFInfo
- Publication number
- CN205752815U CN205752815U CN201620449497.XU CN201620449497U CN205752815U CN 205752815 U CN205752815 U CN 205752815U CN 201620449497 U CN201620449497 U CN 201620449497U CN 205752815 U CN205752815 U CN 205752815U
- Authority
- CN
- China
- Prior art keywords
- connects
- diode
- chip
- relay
- winding
- 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.)
- Expired - Fee Related
Links
- 238000004804 winding Methods 0.000 claims abstract description 15
- 230000001052 transient effect Effects 0.000 claims abstract description 8
- 230000005669 field effect Effects 0.000 claims description 10
- 238000001514 detection method Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000036772 blood pressure Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
The utility model discloses a kind of safety electric shock-prevention socket circuit, including transformator W, rectifier bridge T, diode D1 and audion V1, one end of the winding N1 of described transformator W connects contact the K 1 and 220V alternating current of relay K, the other end of the contact K 1 of relay K connects socket A, the other end of the winding N1 of the other end connection transformer W of socket A, one end of the winding N2 of transformator W connects the port 1 of transient voltage suppressor diode DW and rectifier bridge T.This utility model safety electric shock-prevention socket circuit structure is simple, components and parts are few, utilize faradism pole piece and voltage comparator as safety detection element, can automatically power off when staff removes unplugg, prevent the generation of electric shock accidents, therefore there is the advantage that low cost, security performance are high and easy to use.
Description
Technical field
This utility model 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; various household electrical appliance all be unable to do without electric energy; and socket is exactly the electronic equipment being allocated by the electric energy in electrical network; socket is electrical equipment most commonly used in people's daily life and commercial production; it can complete the line voltage electric energy handing-over to electrical equipment; the most function singleness of existing socket; minority uses fuse structure with the socket inside of defencive function more; people may cause serious harm because of getting an electric shock with water or imprudence touching plug on hand when plugging the plug of electrical equipment.
Utility model content
The purpose of this utility model is to provide a kind of safety electric shock-prevention socket circuit, with the problem solving to propose in above-mentioned background technology.
For achieving the above object, the following technical scheme of this utility model offer:
nullA kind of safety electric shock-prevention socket circuit，Including transformator W、Rectifier bridge T、Diode D1 and audion V1，One end of the winding N1 of described transformator W connects contact K-1 and the 220V alternating current of relay K，The other end of the contact K-1 of relay K connects socket A，The other end of the winding N1 of the other end connection transformer W of socket A，One end of the winding N2 of transformator W connects the port 1 of transient voltage suppressor diode DW and rectifier bridge T，The port 3 of rectifier bridge T connects the other end of transient voltage suppressor diode DW and the other end of the winding N2 of transformator W，The port 2 of rectifier bridge T connects the pin 1 of electric capacity C1 and chip IC 1，The pin 3 of chip IC 1 connects resistance R1、The negative electrode of diode D2、The fixing end of of potentiometer RP1 and relay K，The pin 2 of chip IC 1 connects the other end of electric capacity C1、Electric capacity C2、Electric capacity C3、Another fixing end of potentiometer RP1、The source electrode of field effect transistor Q1、The port 4 of rectifier bridge T and the emitter stage of audion V1，The other end of resistance R1 connects the drain electrode of field effect transistor Q1、The other end of electric capacity C3 and the pin 3 of chip IC 2，The grid of field effect transistor Q1 connects faradism pole piece M，The pin 1 of chip IC 2 connects the sliding end of potentiometer RP1，The pin 4 of chip IC 2 connects the anode of diode D1，The negative electrode of diode D1 connects resistance R2，The base stage of the other end connecting triode V1 of resistance R2 and the other end of electric capacity C2，The colelctor electrode of audion V1 connects anode and the other end of relay K of diode D2，The model of described chip IC 1 is LM7805，The model of chip IC 2 is LM321.
As preferred version of the present utility model: described relay K is normally-closed contact relay.
As preferred version of the present utility model: described diode D2 is Zener diode.
Compared with prior art, the beneficial effects of the utility model are: this utility model safety electric shock-prevention socket circuit structure is simple, components and parts are few, utilize faradism pole piece and voltage comparator as safety detection element, can automatically power off when staff removes unplugg, prevent the generation of electric shock accidents, therefore there is the advantage that low cost, security performance are high and easy to use.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of safety electric shock-prevention socket circuit.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is clearly and completely described, it is clear that described embodiment is only a part of embodiment of this utility model rather than whole embodiments.Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of this utility model protection.
nullRefer to Fig. 1，A kind of safety electric shock-prevention socket circuit，Including transformator W、Rectifier bridge T、Diode D1 and audion V1，One end of the winding N1 of described transformator W connects contact K-1 and the 220V alternating current of relay K，The other end of the contact K-1 of relay K connects socket A，The other end of the winding N1 of the other end connection transformer W of socket A，One end of the winding N2 of transformator W connects the port 1 of transient voltage suppressor diode DW and rectifier bridge T，The port 3 of rectifier bridge T connects the other end of transient voltage suppressor diode DW and the other end of the winding N2 of transformator W，The port 2 of rectifier bridge T connects the pin 1 of electric capacity C1 and chip IC 1，The pin 3 of chip IC 1 connects resistance R1、The negative electrode of diode D2、The fixing end of of potentiometer RP1 and relay K，The pin 2 of chip IC 1 connects the other end of electric capacity C1、Electric capacity C2、Electric capacity C3、Another fixing end of potentiometer RP1、The source electrode of field effect transistor Q1、The port 4 of rectifier bridge T and the emitter stage of audion V1，The other end of resistance R1 connects the drain electrode of field effect transistor Q1、The other end of electric capacity C3 and the pin 3 of chip IC 2，The grid of field effect transistor Q1 connects faradism pole piece M，The pin 1 of chip IC 2 connects the sliding end of potentiometer RP1，The pin 4 of chip IC 2 connects the anode of diode D1，The negative electrode of diode D1 connects resistance R2，The base stage of the other end connecting triode V1 of resistance R2 and the other end of electric capacity C2，The colelctor electrode of audion V1 connects anode and the other end of relay K of diode D2，The model of described chip IC 1 is LM7805，The model of chip IC 2 is LM321.
Relay K is normally-closed contact relay.Diode D2 is Zener diode.
Operation principle of the present utility model is: 220V line voltage gives the DC voltage of circuit with stable after transformator W blood pressure lowering, rectifier bridge T rectification, electric capacity C1 filtering, three terminal regulator IC1 voltage stabilizing, transient voltage suppressor diode DW in circuit is for eliminating the peak voltage that city's electro-mechanical wave produces, increase the stability of circuit, at ordinary times, technotron V1 is in zero inclined state, resistance between its leakage, source is less, and the in-phase input end 3 foot current potential of the integrated operational amplifier IC1 being connected with drain D is relatively low.Inverting input 1 foot current potential potentiometer RP1 is adjusted to a little higher than in-phase input end 3 foot, so, chip IC 1 output low level, and transistor V2 ends, and relay K is failure to actuate, socket A persistently electric.When staff removes to pull out plug, health is close to faradism pole piece M, first field effect transistor Q1 grid G will sense the signal of telecommunication of human body, and the resistance value between this hourglass, source increases, and makes chip IC 1 in-phase input end voltage higher than anti-phase input terminal voltage, chip IC 1 exports high level, V1 turns on, relay K adhesive immediately, and makes the supply socket A of normally closed connection be in off-position, such that the metal part making staff touch plug also will not be got an electric shock.
It is obvious to a person skilled in the art that this utility model is not limited to the details of above-mentioned one exemplary embodiment, and in the case of without departing substantially from spirit or essential attributes of the present utility model, it is possible to realize this utility model 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, scope of the present utility model is limited by claims rather than described above, it is intended that all changes fallen in the implication of equivalency and scope of claim included in this utility model.Should not be considered as limiting involved claim by any reference in claim.
In addition, it is to be understood that, although this specification is been described by according to embodiment, but the most each embodiment only comprises an independent technical scheme, this narrating mode of description is only for clarity sake, description should can also be formed, through appropriately combined, other embodiments that it will be appreciated by those skilled in the art that as an entirety, the technical scheme in each embodiment by those skilled in the art.
Claims (3)
- null1. a safety electric shock-prevention socket circuit，Including transformator W、Rectifier bridge T、Diode D1 and audion V1，It is characterized in that，One end of the winding N1 of described transformator W connects contact K-1 and the 220V alternating current of relay K，The other end of the contact K-1 of relay K connects socket A，The other end of the winding N1 of the other end connection transformer W of socket A，One end of the winding N2 of transformator W connects the port 1 of transient voltage suppressor diode DW and rectifier bridge T，The port 3 of rectifier bridge T connects the other end of transient voltage suppressor diode DW and the other end of the winding N2 of transformator W，The port 2 of rectifier bridge T connects the pin 1 of electric capacity C1 and chip IC 1，The pin 3 of chip IC 1 connects resistance R1、The negative electrode of diode D2、The fixing end of of potentiometer RP1 and relay K，The pin 2 of chip IC 1 connects the other end of electric capacity C1、Electric capacity C2、Electric capacity C3、Another fixing end of potentiometer RP1、The source electrode of field effect transistor Q1、The port 4 of rectifier bridge T and the emitter stage of audion V1，The other end of resistance R1 connects the drain electrode of field effect transistor Q1、The other end of electric capacity C3 and the pin 3 of chip IC 2，The grid of field effect transistor Q1 connects faradism pole piece M，The pin 1 of chip IC 2 connects the sliding end of potentiometer RP1，The pin 4 of chip IC 2 connects the anode of diode D1，The negative electrode of diode D1 connects resistance R2，The base stage of the other end connecting triode V1 of resistance R2 and the other end of electric capacity C2，The colelctor electrode of audion V1 connects anode and the other end of relay K of diode D2，The model of described chip IC 1 is LM7805，The model of chip IC 2 is LM321.
- A kind of safety electric shock-prevention socket circuit the most according to claim 1, it is characterised in that described relay K is normally-closed contact relay.
- A kind of safety electric shock-prevention socket circuit the most according to claim 1, it is characterised in that described diode D2 is Zener diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620449497.XU CN205752815U (en) | 2016-05-16 | 2016-05-16 | A kind of safety electric shock-prevention socket circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620449497.XU CN205752815U (en) | 2016-05-16 | 2016-05-16 | A kind of safety electric shock-prevention socket circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205752815U true CN205752815U (en) | 2016-11-30 |
Family
ID=57363746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620449497.XU Expired - Fee Related CN205752815U (en) | 2016-05-16 | 2016-05-16 | A kind of safety electric shock-prevention socket circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205752815U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107276030A (en) * | 2017-06-24 | 2017-10-20 | 佛山市德新科技孵化器有限公司 | A kind of safety electric shock-prevention socket circuit |
| CN108523652A (en) * | 2018-04-04 | 2018-09-14 | 福建省德化县圣晴工贸有限公司 | A kind of safety electric shock-prevention electric kettle |
-
2016
- 2016-05-16 CN CN201620449497.XU patent/CN205752815U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107276030A (en) * | 2017-06-24 | 2017-10-20 | 佛山市德新科技孵化器有限公司 | A kind of safety electric shock-prevention socket circuit |
| CN108523652A (en) * | 2018-04-04 | 2018-09-14 | 福建省德化县圣晴工贸有限公司 | A kind of safety electric shock-prevention electric kettle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205752815U (en) | A kind of safety electric shock-prevention socket circuit | |
| CN205544520U (en) | Automatic energy -conserving charging circuit of pressure regulating | |
| CN205509491U (en) | DC power supply prevents reverse -connection protective circuit | |
| CN205489788U (en) | LED emergency light direct current system | |
| CN107276030A (en) | A kind of safety electric shock-prevention socket circuit | |
| CN202444132U (en) | Safety anti-electric shock socket | |
| CN107994893A (en) | A kind of remote control switch circuit | |
| CN204243373U (en) | A kind of induction type auto-breaking safety socket | |
| CN205582826U (en) | Direct current delay control switch circuit | |
| CN205490214U (en) | LED power protection circuit | |
| CN204538657U (en) | A kind of high sensitivity electrical shock safety protective circuit | |
| CN108153361A (en) | A kind of DC-stabilized circuit | |
| CN204008937U (en) | A kind of household socket leakage-current alarm circuit | |
| CN206498338U (en) | Modified Switching Power Supply input circuit | |
| CN205406872U (en) | Overvoltage protection power receptacle | |
| CN205646779U (en) | Intelligent security on -off controller | |
| CN204668913U (en) | A kind of voltage protection circuit | |
| CN205960977U (en) | Multi -functional DC power supply controller | |
| CN205141627U (en) | Anti -interference protector control circuit that rations power supply | |
| CN205566256U (en) | Alternating load isolation control circuit | |
| CN205610209U (en) | Mains power supply's surge protection circuit | |
| CN204597149U (en) | A kind of appliances power source socket | |
| CN204065890U (en) | A kind of self-control automatic AC voltage-stabilizing circuit | |
| CN207440217U (en) | A kind of exchange branch break-make detection circuit | |
| CN205141292U (en) | Domestic safety protection socket |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161130 Termination date: 20190516 |