CN110190471A - A kind of safety power source plug socket and production method - Google Patents
A kind of safety power source plug socket and production method Download PDFInfo
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- CN110190471A CN110190471A CN201910593924.XA CN201910593924A CN110190471A CN 110190471 A CN110190471 A CN 110190471A CN 201910593924 A CN201910593924 A CN 201910593924A CN 110190471 A CN110190471 A CN 110190471A
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- 229910052710 silicon Inorganic materials 0.000 claims description 12
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- 238000010892 electric spark Methods 0.000 description 2
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/66—Structural association with built-in electrical component
- H01R13/665—Structural association with built-in electrical component with built-in electronic circuit
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/66—Structural association with built-in electrical component
- H01R13/665—Structural association with built-in electrical component with built-in electronic circuit
- H01R13/6666—Structural association with built-in electrical component with built-in electronic circuit with built-in overvoltage protection
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/66—Structural association with built-in electrical component
- H01R13/665—Structural association with built-in electrical component with built-in electronic circuit
- H01R13/6675—Structural association with built-in electrical component with built-in electronic circuit with built-in power supply
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/66—Structural association with built-in electrical component
- H01R13/70—Structural association with built-in electrical component with built-in switch
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/66—Structural association with built-in electrical component
- H01R13/717—Structural association with built-in electrical component with built-in light source
- H01R13/7175—Light emitting diodes (LEDs)
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/08—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
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- Protection Of Static Devices (AREA)
Abstract
School electrician is exclusively used in or the manufacturing technology of safety power source plug socket that electronic leaning laboratory uses the invention discloses a comprising a common socket circuit, a full-bridge rectification modular circuit, an one-way SCR TH circuit, an one-way SCR TH gate drive voltage form circuit, an overcurrent protection module circuit, restore switching circuit totally six modular circuits compositions manually；Control circuit inside safety power source plug socket is using an one-way SCR TH as core element, it is all undertaken by TH by the electric current of power outlet, the source electrode of TH is connected to sampling resistor, the collector of grid connection transistor Q, load (testing stand) once overcurrent or short circuit, sampled voltage controls transistor Q conducting, one-way SCR is caused to end, to which safety power source plug socket stops to load supplying, it is very flexible, conveniently as long as this safety power source plug socket installs one piece of circuit control panel additional inside any one conventional electrical socket and can be realized.
Description
Technical field
The present invention relates to a technology and production method for being exclusively used in the safety power source plug socket that school experiment room uses, tradition
Power outlet does not have load short circuits or current overload protection protective function, i.e., this traditional simple socket is deposited in terms of safeguard protection
In some shortcomings, a overcurrent protection control circuit is designed, keeps it integrated with conventional electrical outlet, forms a kind of safety electricity
Supply socket, once the experimental bench or workbench overcurrent or short circuit, built-in protection circuits powered by this safety power source plug socket move
Make, so that safety power source plug socket stops to load supplying, as long as this safety power source plug socket is in any one conventional electrical socket
Inside installs one piece of circuit control panel additional and can be realized, and is very flexible, conveniently.
Background technique
It is current no matter university, middle school even primary school all may equipped with electrical, electrician, electronics or reality related with physics
Project is tested, these experimental projects generally can all operate on several experimental benches for student according to student's number assignment, to complete
Experimental project, and the power outlet (usual 220V exchange output) on experimental bench is typically all to be attached directly to the total distribution in laboratory
On cabinet.
The power supply in laboratory is the power electric of 220V or 380V, and slightly better laboratory is typically also entire laboratory
Equipped with the power distribution cabinet of a medium class, the power supply that entire laboratory includes experimental bench is controlled.That is each experimental bench
Power pack without oneself independent protective device, but be directly controlled by power distribution cabinet, protection work be also by power distribution cabinet Lai
It completes, once any one experimental bench has overcurrent or short-circuit conditions, the breaker in power distribution cabinet can then trip, and implement short circuit and protect
Shield, as long as therefore have experimental bench that short trouble occurs, the testing stand in entire laboratory can all be forced to stop power supply.Test teacher
After having handled failure, manually closes a main switch again and continue to test, it is very troublesome.
It is part minor matter that it is some, which to test teacher's trouble, it is often more important that classmates do short for fear when powered-down experiment
Road, it will usually it is overcautious, always meticulously, fears the accidentally short circuit of that place once, will emit suddenly at one's side a
Electric spark, while can be issued when the protection of the total power distribution cabinet in laboratory " clickly " sound " loud noise ", it is also very frightful.
What is generally protected due to power distribution cabinet is entire laboratory, therefore protective current is all preset larger, therefore often in distribution
Before cabinet implements Protection platform, the experimental project or experimental bench itself are possible to be burned out.Public goods is not only damaged
It produces, on the other hand, it is also very big that classmates are done with the strike for the interest tested.After " being frightened " is excessively primary, classmates are often right
These experiments are shied away, especially many schoolgirls, it is possible to which a lifetime will not all contact " electricity " again.It can at will ask
The women at any age at one's side, how many likes contacting " electricity ", it is believed that seldom, is frightened by " electricity ".
For the above situation, we can install a safety power source plug socket, this safety to each experimental bench
Socket can implement quick overload, short-circuit protection, and the reaction time of the device is " Microsecond grade ", can ensure that experiment is set as far as possible
Standby is intact, and these protections are virtually occurred noiseless, classmates when making the experiment of electricity its bear and also can
Mitigate significantly, while reinforcing the interest that classmates make to test.
The cost for making this safety power source plug socket is very cheap, as long as installing one piece additional in a common power outlet
Control circuit board, whether there is or not output voltages to be determined completely by control panel according to present case for the socket.Control circuit board volume
Less, it can set aside concerns completely inside conventional electrical socket, the only Insulation Problems uniquely paid attention to.After this transformation,
Each experimental bench is independently-powered, carries out self-protection if overcurrent or short circuit, and each experimental bench is independently tested, everybody is mutually not
Interference, wouldn't be fine.
Summary of the invention
That technical problem to be solved by the invention is to provide a kind of structures is simple, cheap, uses reliable, high sensitivity
The safety power source plug socket different from conventional electrical outlet, while providing production method.
To achieve the above object, the present invention, which provides, a is exclusively used in safety power source plug socket that school experiment room uses (certainly
Personal use can also be with) comprising a common socket circuit, a full-bridge rectification modular circuit, an one-way SCR TH
Circuit, an one-way SCR TH gate drive voltage form circuit, an overcurrent protection module circuit, a transistor Q dimension
Hold saturation conduction circuit, manual recovery a switching circuit, a surge voltage absorbing circuit, a failure indicating circuit；Institute
State the common common socket of common socket circuit i.e. market, firewire, that is, L connector connection alternating current firewire of the socket, ground wire
The ground wire of former socket is connected, which connects the defeated of the full-bridge rectification modular circuit by power switch S2
Enter terminal 1, alternating current zero curve is directly connected to another input terminal 2 of the full-bridge rectification modular circuit；The full-bridge rectification module
The output negative pole terminal 4 of circuit connects the place of working of entire control circuit, the output cathode end of the full-bridge rectification modular circuit
The cathode of the anode of the 3 connection one-way SCR TH circuit of son, one-way SCR TH circuit passes through resistance R3 connection control electricity
Road place of working；The overcurrent protection module circuit is by sampling resistor R3It is sequentially connected switching diode D5, resistance R6, transistor Q
Base stage composition, the emitter of transistor Q connects place of working, and the collector of transistor Q connects silicon-controlled TH's by resistance R2
Grid；The one-way SCR TH gate drive voltage forms circuit and is sequentially connected rectifier diode D by alternating current firewire10, decompression
Resistance R11, electrolytic capacitor C3And zener diode D8Composition, zener diode D8It forms stable 15V driving voltage and passes through electricity
Hinder the collector of R5 connection transistor Q；The transistor Q maintains saturation conduction circuit to be made of electrolytic capacitor C1, electrolytic capacitor
C1 anode connects the anode of one-way SCR TH, C1 cathode connects place of working；Resistance R4 connection switch S1 constitutes described extensive manually
It is in parallel with capacitor C1 to restore switching circuit manually for multiple switching circuit；The failure indicating circuit is made of light emitting diode D6, institute
It states the control voltage that transistor Q maintains saturation conduction circuit to be formed and passes sequentially through light emitting diode D6, resistance R7, R8, place of working
The conducting for forming transistor Q base stage controls voltage, and the connection common point and transistor Q base stage of resistance R7, R8 keep connection, described
Surge voltage absorbing circuit is made of varistor VDR, and VDR is connected in parallel with C1.
The one-way SCR TH gate drive voltage forms circuit, is connecting capacitor C3 just on the right of switching diode D9
Pole, the left side pass sequentially through the anode of resistance R9, light emitting diode D6 connection capacitor C1.
Detailed description of the invention
Attached drawing 1 is used to provide further understanding of the present invention, and is constituted part of this application, and attached drawing 1 is safety power supply
Socket control panel circuit electrical schematic diagram.
Specific embodiment
Safety power source plug socket working principle
1.1 one-way SCR brief introductions
Since silicon-controlled application is the core of the design, therefore it is necessary to simply introduce silicon-controlled characteristic, from attached drawing 1
It can be seen that 220V exchange enters control circuit board after rectifying by rectifier bridge stack, it is based on cost consideration, the design does not use double
It is used as power device to silicon-controlled, and uses the on-off of one-way SCR control socket.
One-way SCR is a kind of controlled rectification electronic component, can become leading from shutdown in the case where outside controls signal function
It is logical, but be once connected, external signal can not just turn it off, and can only turn it off by removing load or reducing its both end voltage.
Four layers of three-terminal semiconductor device that one-way SCR is made of three PN junction PNPN compared with the diode with a PN junction,
One-way SCR forward conduction is by control electrode current control；Compared with having the triode there are two PN junction, the difference is that silicon-controlled
There is no amplification to control electrode current.
The detailed annotation of safety socket working principle
Have been introduced above, the maximum feature of the safety power source plug socket be exactly cheap, performance efficiency, reaction is very fast, can from
Dynamic to restore or restore manually (in order to which safe the design requires to restore manually), the core of socket is internal control circuit board, electricity
The electrical schematic diagram of road plate is as shown in Fig. 1.
From attached drawing 1 as can be seen that the design circuit is by common socket circuit, full-bridge rectification modular circuit, one-way SCR
TH circuit, one-way SCR TH gate drive voltage form circuit, overcurrent protection module circuit, transistor Q and maintain saturation conduction
Circuit restores 9 modular circuit compositions such as switching circuit, surge voltage absorbing circuit, failure indicating circuit manually.
One-way SCR TH is the core performer why safety power source plug socket can complete safe task, flows through original
It is straight to form unidirectional pulsation by the rectifier bridge stack rectification of 4 rectifying tube compositions for the electric current of socket (socket output connection experimental bench)
Galvanic electricity pressure again passes through one-way SCR TH, therefore one-way SCR assumes responsibility for whole electric currents of entire testing stand, safety power source plug socket
There is Non voltage output, the conducting situation for depending entirely on one-way SCR unidirectionally may be used if circuit does not overload or short-circuit conditions
Control silicon conducting, socket output voltage；If instead having overcurrent or short-circuit conditions, one-way SCR cut-off stops supplying to experimental bench
Electricity, to experimental bench after carefully detection debugging, one-way SCR continues to be connected, and restoring conducting can be realized automatically
It can be manually implemented.
One-way SCR TH gate drive voltage forms circuit by rectifier diode D10, dropping resistor R11, electrolytic capacitor C3
And zener diode D8Composition, 220V AC power source pass through D10、R11To C3Filled with positive voltage, zener diode D8It can limit
Capacitor C3On voltage be no more than 15V.If experimental bench does not have abnormal conditions, capacitor C3On voltage pass through resistance R5、R2It is added to
TH(one-way SCR) grid, it is ensured that TH reliably saturation conduction.
Overcurrent protection module circuit is by sampling resistor R3(resistance be connected to one-way SCR TH cathode and place of working it
Between, such as attached drawing 1), switching diode D5, resistance R6And transistor Q composition, which is another core of the present apparatus, exactly
Being judged for the task that whether transfinites to testing stand operating current is completed by it, judging result gives one-way SCR execution, mistake
The whole process for flowing protection is as detailed below:
Occur overloading once experimental bench or when short trouble, load current IRLIncrease, IRLIn overcurrent sampling resistor R3Pressure drop VR3
Increase, to form following positive feedback process:
Wherein IRL、VR3、VQ-B、VQ-C、VTH-G、、VTH-D、VC1Respectively testing stand consumption total current (or socket output total current),
Sampling resistor R3Upper end voltage-to-ground, transistor Q base voltage, transistor Q collector voltage, one-way SCR TH grid electricity
Pressure, one-way SCR TH anode voltage, electrolytic capacitor C1Cathode voltage.
Strong positive feedback process makes one-way SCR TH soon from saturation conduction state mutation off state, finally
Cutting load RLThe power supply (switch time is about 1 μ S) of (i.e. experimental bench), later capacitor C1Upper charged pressure (pulsating dc voltage)
Transistor Q saturation conduction will be maintained, so that one-way SCR TH be maintained to end.
Restore on-off circuit module manually by contact button S1, electrolytic capacitor C1, discharge resistance R4Composition, by carefully examining
It looks into after eliminating testing stand short trouble, if safety power source plug socket control panel does not have electrolytic capacitor C1, which can be revised as
Make the mode of safety power source plug socket automatic recovery of power supply, i.e. one-way SCR can restore to be connected automatically, we set for safety
It is calculated as restoring manually, therefore capacitor C1It cannot remove, principle description below.
In fig. 1, S2It is the power switch of load.S1It is starting contact button, after which cuts off the power, such as
Fruit does not press S1Button, theoretically load is cut-off power supply always, only touches S1When, electrolytic capacitor C1Upper charge can
To pass through resistance R4Release, makes transistor Q become off state (not in zero-acrross ing moment, i.e., at the electrical source of power voltage zero-cross moment
Make that capacitor C is not present1, transistor Q will not become off state, and be still on state).Once transistor Q is electric cut-off
Hold C3Voltage can be added to the grid of one-way SCR TH, cause TH to be connected.TH is once connected, C on electrolytic capacitor1Voltage
It cannot set up, to guarantee silicon-controlled TH constant conduction.
So experimental bench overloads if it does not exist, short trouble, once after starting, transistor Q cut-off, one-way SCR
TH on state will be locked, and classmates can calmly, relievedly test, and not have to worry short circuit.Even if some are same
It learns due to operation error, accidentally short circuit or there are overloads, the safety power source plug socket is with regard to as described above
, in the moment of about 1 μ S, by experimental bench for being electrically cut off.And these movement be all implemented in it is noiseless invisible, absolutely not commonly
Security unit such as breaker or air switch make us terrified tripping sound or electric spark, and classmates are imperceptible a bit,
Such environment is tested, and teacher, which saves worry, classmate is satisfactory, school is glad achieves many things at one stroke.
Some careful classmate's associations are asked, since S1It is start button, if entire experimental bench or experimental project do not have failure
If, it is of course possible to normal starting, if but failure there are still classmates are another directly according to S1Button is not let go, and (this is to begin to learn
The mistake that person often makes) any phenomenon can occur！This is also that the device makes us the place appreciated, if " short circuit or the mistake of experimental bench
Carrying " failure is not solved, and has rash classmate to press start button S by force1, at this moment the transistor Q in circuit diagram 1 also only
It can end near supply voltage zero-acrross ing moment, one-way SCR TH can only also be connected near supply voltage zero-acrross ing moment, from
And starting current is limited, this little electric current is not have any influence to experimental bench.It is single after classmates unclamp start button
To silicon-controlled still in off state, it is perfectly safe to ensure that including the armamentariums such as " experimental bench " and " experimental project ".
D6It is light emitting diode, when one-way SCR cut-off, D6Play the role of indicating fault；VDR is varistor,
To absorb abnormal surge voltage；Switching diode D9Controllable silicon gate starting voltage (capacitor C is isolated3Voltage) with open manually
Dynamic voltage (capacitor C1Upper voltage), it does not interfere with each other two signals.
If installed according to component parameters in figure, should " safety power source plug socket " can by peak inrush current be about
20A, conversion success rate is about 4000W or so, substantially conforms to the power requirement of the experimental benches such as daily electrician, electronics, physics, and
And experimental bench power supply, the abampere of Protection project can be cut off accurately and in time in generation " overload or short circuit " failure
Entirely.
In addition, should have the function of electric shocked guard in the secure power device in laboratory, to protect personal safety.But the function
It can be not belonging to this paper stated range.
1.3 production
This safety power source plug socket is made very simply, conveniently, as long as installing one piece of such as Fig. 1 institute additional inside original power outlet
The circuit control panel shown can be realized, that is it is this safety power source plug socket that any conventional electrical socket is all scalable.
The circuit control panel of Fig. 1 be to testing stand it is fully transparent, the connection of experimental bench and former power outlet is not any
Change, two contacts L, N above and below testing stand shown in Fig. 1, are exactly the firewire and zero curve of original power outlet, ground wire is also original
Ground wire.
Switch S in Fig. 12Switch directly original using common socket, as contact button S1It can be appropriate in common socket
Position aperture, contact button drawn, installation, using all easily.
The resource that the design makes full use of common socket original is not changing classmates' use habit, is not changing testing stand
Under the thinking of position to take power is guided, using one piece of power control circuit board is installed additional inside common socket, thus by common power
Socket upgrades to safety power source plug socket, and electronic device price used is very cheap.This safety power source plug socket can be independent
The power supply or power-off of any one testing stand of control, as long as experimental bench (including experimental project) is without any exception, socket
Normal power supply；Once testing stand (including experimental project) have short circuit or overload phenomenon, safety power source plug socket i.e. can within 1 μ S incite somebody to action
Testing stand power supply disconnects, and all processing, in silent, doing the interest tested, mitigating for classmates can be enhanced in this design
It tests the administrative burden of teacher, extend the service life of school property, sufficiently show that the cost performance of this design is quite high.
Claims (2)
1. a kind of safety power source plug socket and production method, it is characterised in that: the safety power source plug socket includes a common socket
Circuit, a full-bridge rectification modular circuit, an one-way SCR TH circuit, an one-way SCR TH gate drive voltage shape
At circuit, an overcurrent protection module circuit, transistor Q maintain saturation conduction circuit, one restore manually switching circuit,
One surge voltage absorbing circuit, a failure indicating circuit；The common socket circuit i.e. market it is common it is common insert
Seat, firewire, that is, L connector connection alternating current firewire of the socket, ground wire connect the ground wire of former socket, and the socket original zero curve N connector is logical
The input terminal 1 that power switch S2 connects the full-bridge rectification modular circuit is crossed, alternating current zero curve is directly connected to the full-bridge rectification
Another input terminal 2 of modular circuit；The output negative pole terminal 4 of the full-bridge rectification modular circuit connects entire control circuit
Place of working, the output cathode terminal 3 of the full-bridge rectification modular circuit connect the anode of the one-way SCR TH circuit, unidirectionally
The cathode of silicon-controlled TH circuit passes through resistance R3 connection control circuit place of working；The overcurrent protection module circuit is by sampling electricity
Hinder R3It is sequentially connected switching diode D5, resistance R6, transistor Q base stage composition, the emitter of transistor Q connects place of working, brilliant
The collector of body pipe Q connects the grid of silicon-controlled TH by resistance R2；The one-way SCR TH gate drive voltage forms electricity
Routing alternating current firewire is sequentially connected rectifier diode D10, dropping resistor R11, electrolytic capacitor C3And zener diode D8Composition, surely
Press diode D8Form the collector that stable 15V driving voltage passes through resistance R5 connection transistor Q；The transistor Q is maintained
Saturation conduction circuit is made of electrolytic capacitor C1, and electrolytic capacitor C1 anode connects the anode of one-way SCR TH, the connection of C1 cathode
Place of working；Resistance R4 connection switch S1 constitutes the manual recovery switching circuit, and it is in parallel with capacitor C1 to restore switching circuit manually；
The failure indicating circuit is made of light emitting diode D6, the control voltage that the transistor Q maintains saturation conduction circuit to be formed
The conducting for passing sequentially through light emitting diode D6, resistance R7, R8, place of working formation transistor Q base stage controls voltage, resistance R7, R8
Connection common point and transistor Q base stage keep connecting, the surge voltage absorbing circuit is made of varistor VDR, VDR with
C1 is connected in parallel.
2. a safety power source plug socket for being exclusively used in school experiment room according to claim 1, it is characterised in that: the list
Circuit is formed to silicon-controlled TH gate drive voltage, the anode of connection capacitor C3 on the right of switching diode D9, the left side passes sequentially through
The anode of resistance R9, light emitting diode D6 connection capacitor C1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910593924.XA CN110190471B (en) | 2019-07-03 | 2019-07-03 | Safety power socket and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910593924.XA CN110190471B (en) | 2019-07-03 | 2019-07-03 | Safety power socket and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110190471A true CN110190471A (en) | 2019-08-30 |
| CN110190471B CN110190471B (en) | 2024-06-28 |
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ID=67724740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910593924.XA Active CN110190471B (en) | 2019-07-03 | 2019-07-03 | Safety power socket and manufacturing method thereof |
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| Country | Link |
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| CN (1) | CN110190471B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2912001Y (en) * | 2006-03-29 | 2007-06-13 | 谢玉胜 | Microelectronic safety protecting plug and/or socket |
| JP2013251885A (en) * | 2012-05-02 | 2013-12-12 | Manabu Yabuki | Power-saving transistor for controlling power of direct-current voltage |
| CN204304396U (en) * | 2014-12-30 | 2015-04-29 | 青岛歌尔声学科技有限公司 | A kind of current foldback circuit and overcurrent protective device |
| JP2015136234A (en) * | 2014-01-17 | 2015-07-27 | セイコーエプソン株式会社 | Short-circuit protection circuit, power circuit and power supply unit |
| CN204833034U (en) * | 2015-08-10 | 2015-12-02 | 重庆宁来科贸有限公司 | Steady voltage source can be monitored to quick -break type three -terminal |
| CN106406414A (en) * | 2015-08-01 | 2017-02-15 | 重庆宁来科贸有限公司 | Overcurrent overvoltage acousto-optic caution coexistence tandem type protection power supply |
| CN209805027U (en) * | 2019-07-03 | 2019-12-17 | 山西工程技术学院 | Safe supply socket of school's laboratory is exclusively used in |
-
2019
- 2019-07-03 CN CN201910593924.XA patent/CN110190471B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2912001Y (en) * | 2006-03-29 | 2007-06-13 | 谢玉胜 | Microelectronic safety protecting plug and/or socket |
| JP2013251885A (en) * | 2012-05-02 | 2013-12-12 | Manabu Yabuki | Power-saving transistor for controlling power of direct-current voltage |
| JP2015136234A (en) * | 2014-01-17 | 2015-07-27 | セイコーエプソン株式会社 | Short-circuit protection circuit, power circuit and power supply unit |
| CN204304396U (en) * | 2014-12-30 | 2015-04-29 | 青岛歌尔声学科技有限公司 | A kind of current foldback circuit and overcurrent protective device |
| CN106406414A (en) * | 2015-08-01 | 2017-02-15 | 重庆宁来科贸有限公司 | Overcurrent overvoltage acousto-optic caution coexistence tandem type protection power supply |
| CN204833034U (en) * | 2015-08-10 | 2015-12-02 | 重庆宁来科贸有限公司 | Steady voltage source can be monitored to quick -break type three -terminal |
| CN209805027U (en) * | 2019-07-03 | 2019-12-17 | 山西工程技术学院 | Safe supply socket of school's laboratory is exclusively used in |
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| CN110190471B (en) | 2024-06-28 |
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