CN204243374U - A kind of electromechanical double protection safety socket - Google Patents
A kind of electromechanical double protection safety socket Download PDFInfo
- Publication number
- CN204243374U CN204243374U CN201420719368.9U CN201420719368U CN204243374U CN 204243374 U CN204243374 U CN 204243374U CN 201420719368 U CN201420719368 U CN 201420719368U CN 204243374 U CN204243374 U CN 204243374U
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- pin
- jack
- connects
- relay
- operational amplifier
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Abstract
The utility model discloses a kind of electromechanical double protection safety socket, comprise jack housing and jack, also comprise the induction type auto-breaking safety circuit that jack housing inside is set, and for hiding the case of jack, described case is arranged in jack housing by rotating shaft, and case is provided with the through hole corresponding with jack; Described induction type auto-breaking safety circuit comprises transformer T, rectifier bridge Q, three terminal regulator U1, relay J and operational amplifier U2.Electromechanical double protection safety socket described in the utility model, when not using, socket is opened by mechanical isolation, effectively avoids electric shock accidents; When staff is close to this socket (about 5cm ~ 6cm place), adopt electrical protection, automatically disconnect the internal electric source of socket, increase the fail safe of socket further.
Description
Technical field
The utility model relates to a kind of safety socket, specifically a kind of electromechanical double protection safety socket.
Background technology
Along with the development of science and technology, electric power more and more becomes one of requisite element of people's daily life, in our real life, because socket electric leakage causes personal injury or the accident that shocked by electricity to happen occasionally; And existing socket all adopts single security protection, and a lot of safeguard procedures are unreasonable.
Utility model content
The purpose of this utility model is that providing a kind of can respond to the close electromechanical double protection safety socket of human body, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the utility model provides following technical scheme:
A kind of electromechanical double protection safety socket, comprise jack housing and jack, also comprise the induction type auto-breaking safety circuit that jack housing inside is set, and for hiding the case of jack, described case is arranged in jack housing by rotating shaft, and case is provided with the through hole corresponding with jack, described induction type auto-breaking safety circuit comprises transformer T, rectifier bridge Q, three terminal regulator U1, relay J and operational amplifier U2, transformer T coil L1 one end connects 220V alternating current one end and relay J contact J-1 respectively, the transformer T coil L1 other end connects the 220V alternating current other end and relay J contact J-2 respectively, transformer T coil L2 two ends connect rectifier bridge Q pin 2 and rectifier bridge Q pin 4 respectively, rectifier bridge Q pin 1 connects electric capacity C1 and three terminal regulator U1 pin 2 also ground connection respectively, rectifier bridge Q pin 3 connects the electric capacity C1 other end and three terminal regulator U1 pin 1 respectively, three terminal regulator U1 pin 3 is contact resistance R1 respectively, operational amplifier U2 pin 5, diode D2 negative pole and relay J coil, the relay J coil other end connects diode D2 positive pole and triode VT2 collector electrode respectively, triode VT2 base stage connects electric capacity C3 positive pole and operational amplifier U2 pin 3 respectively, operational amplifier U2 pin 4 connects electric capacity C3 negative pole respectively, triode VT2 emitter, potentiometer RP1, the S pole of electric capacity C2 and field effect transistor VT1 ground connection, operational amplifier U2 pin 2 connects potentiometer RP1 slide plate, the potentiometer RP1 other end connects 5V positive source, operational amplifier U2 pin 1 connects the electric capacity C2 other end respectively, the D pole of the resistance R1 other end and field effect transistor VT1, the described relay J contact J-1 other end connects output D, the described relay J contact J-2 other end connects output C, described output C and output D are connected on copper sheet corresponding in jack respectively.
As further program of the utility model: described output C be also parallel with the resistance R3 and LED that connect between output D.
As further program of the utility model: described three terminal regulator U1 model is LM7805CT, described operational amplifier U2 model is LM358.
Compared with prior art, the beneficial effects of the utility model are: electromechanical double protection safety socket described in the utility model, and when not using, socket is opened by mechanical isolation, effectively avoids electric shock accidents; When staff is close to this socket (about 5cm ~ 6cm place), the internal electric source of automatic disconnection socket, and after staff leaves socket, automatically the power supply recovering again socket inside connects, and does any operation, and add power supply indicator in circuit without the need to people, operating state one order is made to connect so, circuit structure is simple and convenient and practical, and cost is not high, is particularly suitable for toilet and kitchen and uses.
Accompanying drawing explanation
Fig. 1 is the structure chart of electromechanical double protection safety socket.
Fig. 2 is the circuit diagram of electromechanical double protection safety socket.
Embodiment
Be described in more detail below in conjunction with the technical scheme of embodiment to this patent.
Refer to Fig. 1 and Fig. 2, a kind of electromechanical double protection safety socket, comprise jack housing 11 and jack 13, also comprise the induction type auto-breaking safety circuit that jack housing 11 inside is set, and for hiding the case 12 of jack 13, described case 12 is arranged in jack housing 11 by rotating shaft 14, and case 12 is provided with the through hole 15 corresponding with jack 13, described induction type auto-breaking safety circuit comprises transformer T, rectifier bridge Q, three terminal regulator U1, relay J and operational amplifier U2, transformer T coil L1 one end connects 220V alternating current one end and relay J contact J-1 respectively, the transformer T coil L1 other end connects the 220V alternating current other end and relay J contact J-2 respectively, transformer T coil L2 two ends connect rectifier bridge Q pin 2 and rectifier bridge Q pin 4 respectively, rectifier bridge Q pin 1 connects electric capacity C1 and three terminal regulator U1 pin 2 also ground connection respectively, rectifier bridge Q pin 3 connects the electric capacity C1 other end and three terminal regulator U1 pin 1 respectively, three terminal regulator U1 pin 3 is contact resistance R1 respectively, operational amplifier U2 pin 5, diode D2 negative pole and relay J coil, the relay J coil other end connects diode D2 positive pole and triode VT2 collector electrode respectively, triode VT2 base stage connects electric capacity C3 positive pole and operational amplifier U2 pin 3 respectively, operational amplifier U2 pin 4 connects electric capacity C3 negative pole respectively, triode VT2 emitter, potentiometer RP1, the S pole of electric capacity C2 and field effect transistor VT1 ground connection, operational amplifier U2 pin 2 connects potentiometer RP1 slide plate, the potentiometer RP1 other end connects 5V positive source, operational amplifier U2 pin 1 connects the electric capacity C2 other end respectively, the D pole of the resistance R1 other end and field effect transistor VT1, the described relay J contact J-1 other end connects output D, the described relay J contact J-2 other end connects output C, described output C and output D are connected on copper sheet corresponding in jack 13 respectively.Described output C be also parallel with the resistance R3 and LED that connect between output D.Described three terminal regulator U1 model is LM7805CT, and operational amplifier U2 model is LM358.
The operation principle of this electromechanical double protection safety socket is as follows:
Mechanical protection: when not using, the through hole 15 on case 12 does not overlap with jack 13, and jack 13 does not expose; Machinery has completely cut off jack 13, avoids peril to occur; When needing to use operation, rotate case 12, through hole 15 is overlapped with jack 13 and appliance plug can be injected jack 13.
Electrical protection: when this socket of people's inoperation, technotron VT1 is in zero inclined state, resistance between its D pole, S pole is less, in-phase input end pin 1 current potential of the operational amplifier U2 be extremely connected with the D of field effect transistor VT1 is lower, inverting input pin 2 current potential of operational amplifier U2 can be adjusted to a little higher than operational amplifier U2 pin 1 with potentiometer RP1, like this, triode VT2 ends, relay J is failure to actuate, whole circuit communication, the triode LED as power supply indicator lights.
When on this socket during plug plug, first the G pole of field effect transistor VT1 will sense the signal of telecommunication of human body, at this moment the resistance value between the S pole of field effect transistor VT1 and D pole increases, operational amplifier U2 pin 3 level becomes 1 from 0, triode VT2 conducting, and relay J is adhesive immediately, power supply indicator LED extinguishes, socket and 220V alternating current separated, like this, even if the metallic member that staff touches plug also can not get an electric shock.The barrier voltage that the noise jamming of electric capacity C3 available buffer is certain with accumulation, to improve sensitivity during relay K adhesive.When plug is plugged, after staff leaves socket, field effect transistor VT1 induction is less than the signal of telecommunication (or susceptibility is inadequate) of human body, and circuit just returns to normal operating conditions again, and relay J discharges again, whole circuit turn-on.
Above the better embodiment of this patent is explained in detail, but this patent is not limited to above-mentioned execution mode, in the ken that one skilled in the relevant art possesses, can also makes a variety of changes under the prerequisite not departing from this patent aim.
Claims (3)
1. an electromechanical double protection safety socket, comprise jack housing and jack, it is characterized in that, also comprise the induction type auto-breaking safety circuit that jack housing inside is set, and for hiding the case of jack, described case is arranged in jack housing by rotating shaft, and case is provided with the through hole corresponding with jack, described induction type auto-breaking safety circuit comprises transformer T, rectifier bridge Q, three terminal regulator U1, relay J and operational amplifier U2, transformer T coil L1 one end connects 220V alternating current one end and relay J contact J-1 respectively, the transformer T coil L1 other end connects the 220V alternating current other end and relay J contact J-2 respectively, transformer T coil L2 two ends connect rectifier bridge Q pin 2 and rectifier bridge Q pin 4 respectively, rectifier bridge Q pin 1 connects electric capacity C1 and three terminal regulator U1 pin 2 also ground connection respectively, rectifier bridge Q pin 3 connects the electric capacity C1 other end and three terminal regulator U1 pin 1 respectively, three terminal regulator U1 pin 3 is contact resistance R1 respectively, operational amplifier U2 pin 5, diode D2 negative pole and relay J coil, the relay J coil other end connects diode D2 positive pole and triode VT2 collector electrode respectively, triode VT2 base stage connects electric capacity C3 positive pole and operational amplifier U2 pin 3 respectively, operational amplifier U2 pin 4 connects electric capacity C3 negative pole respectively, triode VT2 emitter, potentiometer RP1, the S pole of electric capacity C2 and field effect transistor VT1 ground connection, operational amplifier U2 pin 2 connects potentiometer RP1 slide plate, the potentiometer RP1 other end connects 5V positive source, operational amplifier U2 pin 1 connects the electric capacity C2 other end respectively, the D pole of the resistance R1 other end and field effect transistor VT1, the described relay J contact J-1 other end connects output D, the described relay J contact J-2 other end connects output C, described output C and output D are connected on copper sheet corresponding in jack respectively.
2. electromechanical double protection safety socket according to claim 1, is characterized in that, described output C be also parallel with the resistance R3 and LED that connect between output D.
3. electromechanical double protection safety socket according to claim 1 and 2, is characterized in that, described three terminal regulator U1 model is LM7805CT, and described operational amplifier U2 model is LM358.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420719368.9U CN204243374U (en) | 2014-11-25 | 2014-11-25 | A kind of electromechanical double protection safety socket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420719368.9U CN204243374U (en) | 2014-11-25 | 2014-11-25 | A kind of electromechanical double protection safety socket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204243374U true CN204243374U (en) | 2015-04-01 |
Family
ID=52772823
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420719368.9U Expired - Fee Related CN204243374U (en) | 2014-11-25 | 2014-11-25 | A kind of electromechanical double protection safety socket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204243374U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108023202A (en) * | 2016-11-02 | 2018-05-11 | 北京脑泰科技发展有限公司 | One kind is through cranium stimulation instrument interface protector |
-
2014
- 2014-11-25 CN CN201420719368.9U patent/CN204243374U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108023202A (en) * | 2016-11-02 | 2018-05-11 | 北京脑泰科技发展有限公司 | One kind is through cranium stimulation instrument interface protector |
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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: 20150401 Termination date: 20151125 |