CN101859964A - Electric shock preventing socket circuit - Google Patents
Electric shock preventing socket circuit Download PDFInfo
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- CN101859964A CN101859964A CN200910134321.XA CN200910134321A CN101859964A CN 101859964 A CN101859964 A CN 101859964A CN 200910134321 A CN200910134321 A CN 200910134321A CN 101859964 A CN101859964 A CN 101859964A
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- switch element
- electric shock
- circuit
- socket
- voltage
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Abstract
The invention discloses an electric shock preventing socket circuit which comprises a power supply unit, a detecting unit and a switching unit, wherein the power supply unit is used for providing voltage for the detecting unit and the switching unit; the detecting unit is used for detecting and judging whether a pin of a plug is correctly inserted into a jack or not and transmitting a control signal on the basis; and the switching unit is used for receiving the control signal transmitted by the detecting unit and controlling the power supply output of a socket according to the control signal. The electric shock preventing socket circuit has high safety and is convenient for users to use.
Description
Technical field
The present invention relates to a kind of circuit, relate in particular to a kind of electric shock preventing socket circuit.
Background technology
Along with popularizing of household electrical appliance, appliance socket has become huge numbers of families' essential product.Because children's curiosity is strong, thus tend to take some iron nails, copper wire or other article in the hole and the user when plugging plug, often be easy to generate electric shock accidentally.
For safety, socket often is provided with corresponding electrocution-proof protection mechanism.Application number is that 200820105388 Chinese patent has disclosed a kind of anti-electric shock socket, and it comprises seat board, is fastened on the pedestal on the seat board, a plurality of electrode and a plurality of collets.Offer jack on the seat board.Electrode is arranged on the pedestal and is positioned at the jack below of seat board.Collets place between jack and the electrode, offer the corresponding perforation of the jack with on the seat board that runs through up and down on the collets.When the inserting terminal of plug did not insert this anti-electric shock socket fully, inserting terminal only contacted with collets, and does not electrically conduct with anti-electric shock socket, thereby makes this anti-electric shock socket can reach the effect of protection against electric shock.
And for example application number is that 200720014111 Chinese patent has disclosed a kind of anti-electric shock socket, comprises shell, socket, metal contact and lead, and at corresponding each socket processing round thread groove of case surface, the center of circle of thread groove is the socket center; Connect swivelling cover at the thread groove thread surface, a pair of socket is offered on the swivelling cover surface in addition, and socket and shell socket size, position, spacing are consistent; The position of thread groove inward flange is processed with protruding baffle plate on shell, and the swivelling cover inwall also is provided with protruding baffle plate, and spring connects between two baffle plates.During energized, earlier attaching plug is inserted in the socket on swivelling cover surface extrusion spring, rotate swivelling cover, when the swivelling cover socket overlaps with the shell socket, attaching plug is inserted the shell socket downwards contact the realization energising with the metal contact, finally realize the purpose of protection against electric shock.
The purpose that above-mentioned jack block piece structure and spiral cover jack structure etc. all provide a barrier force to reach protection against electric shock with mechanical structure, its poor stability and inconvenient user use.
Summary of the invention
Thereby main purpose of the present invention is to provide a kind of electric shock preventing socket circuit that can improve socket secure and make things convenient for the user to use in the socket that is arranged at the defective that the above-mentioned background technology exists.
For achieving the above object, the invention provides a kind of electric shock preventing socket circuit, it comprises a power-supply unit, a detecting unit and a switch element.Power-supply unit is used to detecting unit and switch element that voltage is provided; This detecting unit is used for detecting the pin of judging plug and whether correctly inserts jack, and transmits control signal in view of the above; Switch element receives the control signal that detecting unit sends, and exports according to the power supply of this control signal control socket.
In sum, electric shock preventing socket circuit of the present invention is used for detecting the pin of judging plug by detecting unit and whether correctly inserts jack, and transmit control signal in view of the above, switch element receives described control signal and controls the conducting and the disconnection of power supply according to control signal, thereby reach the purpose of protection against electric shock, and then fail safe is good and make things convenient for the user to use.
Description of drawings
Fig. 1 is the circuit diagram of a kind of embodiment of electric shock preventing socket circuit of the present invention.
Description of reference numerals in the above-mentioned accompanying drawing is as follows:
100 electric shock preventing socket circuits
1 power-supply unit, 11 reduction voltage circuits
12 current rectifying and wave filtering circuits, 13 voltage stabilizing circuits
C1 decompression capacitor R1 first resistance
The R2 second resistance BD1 first rectifier diode
The BD2 second rectifier diode BD3 the 3rd rectifier diode
BD4 the 4th rectifier diode C2 filter capacitor
The D1 first voltage stabilizing didoe D2 second voltage stabilizing didoe
2 detecting units, 21 Optical Transmit Units
22 light receiving unit E1, first light-emitting component
E2 second light-emitting element E 3 the 3rd light-emitting component
The T1 first photo-sensitive cell T2 second photo-sensitive cell
T3 the 3rd photo-sensitive cell R3 the 3rd resistance
R4 the 4th resistance R 5 the 5th resistance
3 switch element Q1, first switch element
Q2 second switch element S1 inductance type switch element
D3 guide current diode D4 luminescence unit
R6 the 6th resistance R 7 the 7th resistance
R8 the 8th resistance Lin power supply input live wire end
Nin power supply input zero line side Lout power supply output live wire end
Nout power supply output zero line side
Embodiment
For describing technology contents of the present invention, structural feature, the purpose of being reached and effect in detail, described in detail below in conjunction with embodiment and conjunction with figs..
See also Fig. 1, electric shock preventing socket circuit 100 of the present invention comprises a power-supply unit 1, a detecting unit 2 and a switch element 3.Power-supply unit 1 comprises a reduction voltage circuit 11, a current rectifying and wave filtering circuit 12 and a voltage stabilizing circuit 13.Reduction voltage circuit 11 comprises a decompression capacitor C1 parallel with one another and one first resistance R 1, one end of the decompression capacitor C1 and first resistance R 1 is electrically connected with power supply input live wire end Lin, and the decompression capacitor C1 and first resistance R, 1 other end are electrically connected to current rectifying and wave filtering circuit 12.Reduction voltage circuit 11 is used for the external power source step-down.
Current rectifying and wave filtering circuit 12 comprises interconnective one first rectifier diode BD1, one second rectifier diode BD2, one the 3rd rectifier diode BD3 and one the 4th rectifier diode BD4.The negative pole of the first rectifier diode BD1 is electrically connected to an end of the described decompression capacitor C1 and first resistance R 1, and the positive pole anodal and the 3rd rectifier diode BD3 of the first rectifier diode BD1 is electrically connected to ground; The positive pole of the negative pole of the 3rd rectifier diode BD3 and the 4th rectifier diode BD4 and power supply input zero line side Nin electrically connect; The negative pole of the negative pole of the second rectifier diode BD2 and the 4th rectifier diode BD4 is electrically connected to voltage stabilizing circuit 13.The negative pole of the negative pole of the second rectifier diode BD2 and the 4th rectifier diode BD4 also is electrically connected to the positive pole of a filter capacitor C2, the other end of this filter capacitor C2 is electrically connected to ground, and this filter capacitor C2 is used for the voltage of current rectifying and wave filtering circuit 12 outputs is carried out filtering.
Described voltage stabilizing circuit 13 is the two first voltage stabilizing didoe D1 and one second voltage stabilizing didoe D2 in parallel mutually.Be connected with one second resistance R 2 between described current rectifying and wave filtering circuit 12 and the voltage stabilizing circuit 13, one end of this second resistance R 2 is connected with the negative pole of the negative pole of the second rectifier diode BD2 and the 4th rectifier diode BD4, and the other end is connected with the second voltage stabilizing didoe D2 with the first voltage stabilizing didoe D1.Voltage stabilizing circuit 13 carries out voltage stabilizing with the voltage of current rectifying and wave filtering circuit 12 outputs.This power-supply unit 1 uses for detecting unit 2 and switch element 3 for the power supply of input being adjusted and exported 12 volts of voltages.
Detecting unit 2 comprises an Optical Transmit Unit 21 and a light receiving unit 22.Optical Transmit Unit 21 comprises one first light-emitting element E 1, one second light-emitting element E 2 and one the 3rd light-emitting element E 3 parallel with one another.The other end that one end ground connection of Optical Transmit Unit 21, the other end are connected with one the 3rd resistance R, 3, the three resistance R 3 is electrically connected to the end of the second voltage stabilizing didoe D2.First light-emitting element E 1, second light-emitting element E 2 and the 3rd light-emitting element E 3 are infrared transmitter in this example.
Described switch element 3 comprises a guide current diode D3, a luminescence unit D4, one first switch element Q1, a second switch element Q2, one the 6th resistance R 6, one the 7th resistance R 7, one the 8th resistance R 8 and an inductance type switch element S1.In the present embodiment, the first switch element Q1 and second switch element Q2 are transistor, one end of the 7th resistance R 7 links to each other with the collector electrode of second switch element Q2, the other end links to each other with the emitter of second switch element Q2 and is electrically connected to ground, and the base stage of second switch element Q2 links to each other with an end of the 5th resistance R 5.The collector electrode of one end of the 6th resistance R 6 and second switch element Q2, the base stage of the first switch element Q1 and the 7th resistance R 7 one ends electrically connect, and the other end is electrically connected to the end of the second voltage stabilizing didoe D2.The base stage of the first switch element Q1 is connected with an end of the 7th resistance R 7, grounded emitter, and collector electrode is electrically connected to the end of guide current diode D3, and the other end of guide current diode D3 is electrically connected to the second voltage stabilizing didoe D2.The electric current that guide current diode D3 refluxes when being used to guide the first switch element Q1 to disconnect, thus the first switch element Q1 can be protected.
In the present embodiment, inductance type switch element S1 is an electromagnetic relay.Switch one end among the inductance type switch element S1 is electrically connected to power supply input live wire end Lin, and another terminals link to each other with an end of the 8th resistance R 8.One end of the 8th resistance R 8 connects power supply output live wire end Lout, and the other end then is electrically connected to luminescence unit D4.The other end of luminescence unit D4 connects power supply output zero line side Nout and is electrically connected to power supply input zero line side Nin.When plug insertion socket, by power supply output live wire end Lout and power supply output zero line side Nout and the electric connection of external plug pin.The D4 of luminescence unit described in the present embodiment is a light-emitting diode, and power supply is excitatory can to send light during for conducting state to luminescence unit D4 because of having as described inductance type switch element S1, thereby uses as the switch indicator light.
When plug does not insert the jack of socket, described first light-emitting element E 1, the detection light that second light-emitting element E 2 and the 3rd light-emitting element E 3 are sent is all by the corresponding first photo-sensitive cell T1, the second photo-sensitive cell T2 and the 3rd photo-sensitive cell T3 receive, thereby make the 5th resistance R 5 have electric current to pass through, and then can there be a high voltage control signal to be sent to described second switch element Q2, the high voltage control signal drives this second switch element Q2 conducting, thereby the first switch element Q1 disconnects, so inductance type switch element S1 is an off-state because of non-transformer is excitatory, the output of power supply output live wire end Lout non-transformer, then socket non-transformer output.When the pin of plug is less than three when inserting sockets (in the jacks of the incorrect insertion socket of pin or insert for foreign matter), thereby make the 5th resistance R 5 have electric current to pass through, thus socket also non-transformer export.
After plug correctly inserts socket, the detection light that corresponding described first light-emitting element E 1, second light-emitting element E 2 and the 3rd light-emitting element E 3 are sent is blocked by the terminal of plug, thereby the 5th resistance R 5 no currents pass through, it is that a low-voltage control signal is a cut-off state that second switch unit Q2 receives, thereby the 7th resistance R 7 have electric current by and impel the first switch element Q1 conducting, so this inductance type switch element S1 is a conducting state because of there being power supply excitatory, power supply output live wire end Lout has power supply output, and then socket has power supply output.
In sum, whether electric shock preventing socket circuit 100 of the present invention detects the pin of judging plug by detecting unit 2 transmissions with reception detection light and correctly inserts in the jack of socket, thereby the power turn-on or the disconnection of control socket, thereby reach the purpose of protection against electric shock, and then socket secure is good and make things convenient for the user to use.
Claims (4)
1. electric shock preventing socket circuit, it is characterized in that: include a power-supply unit, a detecting unit and a switch element, power-supply unit is used to detecting unit and switch element that voltage is provided; This detecting unit is used for detecting the pin of judging plug and whether correctly inserts jack, and transmits control signal in view of the above; Switch element receives the control signal that detecting unit sends, and exports according to the power supply of this control signal control socket.
2. electric shock preventing socket circuit according to claim 1, it is characterized in that: described detecting unit includes an Optical Transmit Unit and a light receiving unit, wherein, Optical Transmit Unit includes some light-emitting components, and light receiving unit includes some photo-sensitive cells that cooperate with a light-emitting component respectively, these some photo-sensitive cells are identical in the operating state mapping mode of plug before and after correctly planting, and the light-emitting component that matches and photo-sensitive cell are arranged at the relative both sides of a jack.
3. electric shock preventing socket circuit according to claim 1, it is characterized in that: described switch element includes an inductance type switch element, one first switch element and a second switch element, when this first switch element conducting, and this second switch element is when disconnecting, this inductance type switch element disconnects, this anti-electric shock socket non-transformer output; And disconnect when this first switch element, and during this second switch element conductive, this inductance type switch element conducting, this anti-electric shock socket has power supply output.
4. electric shock preventing socket circuit according to claim 1 is characterized in that: described power-supply unit includes a reduction voltage circuit, a current rectifying and wave filtering circuit and a voltage stabilizing circuit, and reduction voltage circuit can carry out step-down with the voltage of outside input; Current rectifying and wave filtering circuit can convert the alternating current of reduction voltage circuit output to behind the direct current and voltage is carried out filtering; Voltage stabilizing circuit can carry out voltage stabilizing with the voltage of current rectifying and wave filtering circuit output.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW098110211A TW201036285A (en) | 2009-03-27 | 2009-03-27 | Protection against electric shock circuit of the socket |
| CN200910134321.XA CN101859964A (en) | 2009-03-27 | 2009-04-10 | Electric shock preventing socket circuit |
| JP2009099565A JP2010251133A (en) | 2009-03-27 | 2009-04-16 | Circuit of electric shock preventing socket |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW098110211A TW201036285A (en) | 2009-03-27 | 2009-03-27 | Protection against electric shock circuit of the socket |
| CN200910134321.XA CN101859964A (en) | 2009-03-27 | 2009-04-10 | Electric shock preventing socket circuit |
| JP2009099565A JP2010251133A (en) | 2009-03-27 | 2009-04-16 | Circuit of electric shock preventing socket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101859964A true CN101859964A (en) | 2010-10-13 |
Family
ID=49151537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910134321.XA Pending CN101859964A (en) | 2009-03-27 | 2009-04-10 | Electric shock preventing socket circuit |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2010251133A (en) |
| CN (1) | CN101859964A (en) |
| TW (1) | TW201036285A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103178413A (en) * | 2013-04-09 | 2013-06-26 | 郭胜利 | Multifunctional intelligent safety power socket without standby power loss |
| CN104577543A (en) * | 2014-12-23 | 2015-04-29 | 陈其昌 | Socket or plug and use method thereof |
| WO2016058443A1 (en) * | 2014-10-11 | 2016-04-21 | 北京嘉岳同乐极电子有限公司 | Secure smart socket |
| CN106299902A (en) * | 2016-08-26 | 2017-01-04 | 张红 | A kind of control method of protection against electric shock smart jack |
| US9548574B2 (en) | 2015-01-30 | 2017-01-17 | Powertech Industrial Co., Ltd. | Power socket with photo-interrupter |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107317144B (en) * | 2017-07-07 | 2018-10-23 | 浙江欧托电气有限公司 | A kind of photosensitive anti-electric shock socket and plug |
| CN108683035A (en) * | 2018-06-12 | 2018-10-19 | 华北理工大学 | Electric vehicle accumulator accessory power outlet short-circuit protection |
| TWI804841B (en) * | 2020-04-01 | 2023-06-11 | 矽創電子股份有限公司 | The structure of the safety socket |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09306579A (en) * | 1996-05-20 | 1997-11-28 | Seiko Precision Kk | Electric outlet |
| JP4082114B2 (en) * | 2002-07-12 | 2008-04-30 | 松下電工株式会社 | Power system |
-
2009
- 2009-03-27 TW TW098110211A patent/TW201036285A/en unknown
- 2009-04-10 CN CN200910134321.XA patent/CN101859964A/en active Pending
- 2009-04-16 JP JP2009099565A patent/JP2010251133A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103178413A (en) * | 2013-04-09 | 2013-06-26 | 郭胜利 | Multifunctional intelligent safety power socket without standby power loss |
| WO2016058443A1 (en) * | 2014-10-11 | 2016-04-21 | 北京嘉岳同乐极电子有限公司 | Secure smart socket |
| CN104577543A (en) * | 2014-12-23 | 2015-04-29 | 陈其昌 | Socket or plug and use method thereof |
| US9548574B2 (en) | 2015-01-30 | 2017-01-17 | Powertech Industrial Co., Ltd. | Power socket with photo-interrupter |
| CN106299902A (en) * | 2016-08-26 | 2017-01-04 | 张红 | A kind of control method of protection against electric shock smart jack |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2010251133A (en) | 2010-11-04 |
| TW201036285A (en) | 2010-10-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20101013 |