CN104103973B - Zero protection and grounding general self-inspection single-phase three-pole integrated socket - Google Patents
Zero protection and grounding general self-inspection single-phase three-pole integrated socket Download PDFInfo
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- CN104103973B CN104103973B CN201410350980.8A CN201410350980A CN104103973B CN 104103973 B CN104103973 B CN 104103973B CN 201410350980 A CN201410350980 A CN 201410350980A CN 104103973 B CN104103973 B CN 104103973B
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Abstract
The invention relates to a zero protection and grounding general self-inspection single-phase three-pole integrated socket. Zero protection is characterized in that a resistor is connected onto a zero line and a ground line of the single-phase three-pole integrated socket in a crossing mode, and the resistor is controlled by a selective switch. When an external power supply line has the problem that the zero line is disconnected or connected with a live line in an overlapping mode, and current of the resistor connected between the zero line and the ground line rises to a certain value, a user leakage protector is tripped out immediately, and electric devices of a user are effectively protected from damage. The grounding general self-inspection single-phase three-pole integrated socket is characterized in that the zero protection selective switch, safety self-inspection indicators and a test button are installed on the socket, if an indicator SD2 and an indicator SD3 light simultaneously, the position of the live line L1 is correct, otherwise, line connection errors exist, and the socket can only be used after the errors are removed. The socket has the advantages of being simple in circuit, low in cost, convenient to operate and has practical value.
Description
Technical field
The present invention relates to the safe power supply of low-voltage power supply system, safety utilization of electric power, earthing detection and protection field off zero, especially
It is protection off zero and the single-phase three pole disjunctor connector assembly of ground connection general-purpose self-inspection.
Background technology
There is phenomenon off zero in electric power system, the zero line that particularly residential quarter three-phase and four-line is powered breaks suddenly, three-phase fire
Linear load will result in part family voltage and is suddenly increased to be even up to 400V or so more than 250V when serious uneven, or
Zero line breaks and falls on a certain phase firewire, will result in a large amount of household electrical appliance and is burned out, and similar accident there is presently no once occurring
It is effectively protected measure；At present each urban and rural housing or industrial and mining establishment all use substantial amounts of single-phase tripolar plug seat, some families or
Enterprise security consciousness is not strong, and house decoration and the unearthed line of new equipment installation or ground wire do not meet safety requirements, are directed at final calamity
Into the big Woe of personal injury, the potential safety hazard of detection equipment how is found, simple and effective means and method are lacked at present.Example
Such as simplest 220 volts single-phase three pole sockets, because existing socket is that protection against electric shock jack gap is little and equipped with baffle plate, voltage test pencil
Or avometer indicator is difficult to inject, it is impossible to directly perceived to confirm the problem that ground wire is present, suddenly must a kind of easy ground connection general-purpose self-inspection
Connector assembly to eliminate safe hidden trouble, prevents the generation of accident judging the safety of electrical equipment and the reliability of earth system.
The content of the invention
The purpose of the present invention is for drawbacks described above, there is provided one kind has protection off zero, meets safety requirements, operation letter
Just, the protection off zero and the single-phase three pole disjunctor connector assembly of ground connection general-purpose self-inspection for judging single-phase three pole sockets security performance can be detected.
The technical scheme is that protection off zero and be grounded the single-phase three pole disjunctor connector assembly of general-purpose self-inspection, it is characterised in that
Protection off zero and the single-phase three pole disjunctor connector assembly of ground connection general-purpose self-inspection are that single-phase tripolar plug is connected as a single entity with single-phase three pole socket,
The back of single-phase tripolar plug is single-phase three pole socket, resistance blood pressure lowering protection off zero is provided with inside it and general-purpose self-inspection is grounded and is inserted
Headstock circuit constitutes protection off zero and is grounded the single-phase three pole disjunctor connector assembly of general-purpose self-inspection, and the circuit structure of protection off zero is single-phase
One is bridged in three pole disjunctor connector assembly CH between zero line N and safety line E and switchs the limit that K connects with protective seletion off zero
Leakage resistance, protective seletion switch K off zero opens protection off zero when connecting, the circuit structure of general-purpose self-inspection is safety line E and fire
Self-inspection display lamp SD and test button are respectively mounted and live wire L and zero line N between and safety ground E and zero line N between line L
SB, self-inspection display lamp SD is in series with dropping resistor, and test button SB is in series with current-limiting resistance, bright with dark judgement according to display lamp SD
Each whether position is correct for safety line E1 and zero line N1 and live wire L1, then further confirmed that by test button SB, when single-phase
After single-phase three pole socket of three-terminal polarized plus plug seat CH insertion users, if display lamp SD and live wire L between safety line E and live wire L
The display lamp SD3 between zero line N is while test button SB between live wire L and zero line N correctly, is depressed in the position of bright explanation live wire L1
It is reactionless, depress single-phase three pole of user's earth leakage protective tripping operation explanation user after test button SB between safety line E and live wire L
Socket is safe and reliable, otherwise has Miswire to wait to fix a breakdown and use again, and the circuit structure of protection off zero is that single-phase three pole connects
Zero line N1 connections resistance R1 in body connector assembly CHT1, the resistance R1 other ends connect protective seletion off zero and switch K1, protection choosing off zero
Switch K1 other end attachment security ground wire E1 are selected, protective seletion switch K1 off zero is connected across zero line N1 when connecting equivalent to resistance R1
Between safety line E1, single-phase three pole disjunctor connector assembly CHT1 inserts single-phase three pole socket of user, when externally fed circuit goes out
When existing zero line disconnects or rides on live wire, due to three phase supply power source loads difference three-phase voltage disequilibrium, the zero line of user
Voltage may increase between N1 and safety line E1, and the electric current for being connected across resistance R1 between zero line N1 and safety line E1 rises to
During a certain numerical value, the earth leakage protective of user can trip immediately, and the electrical equipment for being effectively protected user exempts from damage, safety line
Self-inspection display lamp is respectively mounted and live wire L1 and zero line N1 between and safety ground E1 and zero line N1 between E1 and live wire L1
And test button, judge safety line E1 and zero line N1 and live wire L1 each whether position is correct with dark according to display lamp is bright, then
Further confirmed that by test button, particular circuit configurations be in single-phase three pole disjunctor connector assembly CHT1 safety line E1 while connecting
Protective seletion switch K1 off zero, test button SB1, display lamp SD1 and display lamp SD2 are met, display lamp SD1 connection resistance R2 break
Zero protective seletion switch K1 other end connection resistance R1, the resistance R1 other ends and the resistance R2 other ends connect together zero line N1, refer to
Show that the lamp SD2 other ends connect resistance R3, the test button SB1 other ends connect resistance R4, and the resistance R3 other ends and resistance R4 are another
End connects together live wire L1, zero line N1 connection display lamp SD3 and test button SB2, display lamp SD3 other ends connection resistance R5,
The test button SB2 other ends connect resistance R6, and the resistance R5 other ends and the resistance R6 other ends connect together live wire L1, display lamp
SD1, display lamp SD2 and display lamp SD3 using light emitting diode or neon lamp, using resistance R2, resistance R5 during light emitting diode and
The resistance of resistance R3 selects 82K Ω or so, can also increase a diode and connect that to improve reverse breakdown electric with light emitting diode
Pressure protection light emitting diode, selects more than 1M Ω, when single-phase three pole using the resistance of resistance R2, resistance R3 and resistance R5 during neon lamp
In single-phase three pole socket of disjunctor connector assembly CHT1 insertion users, if it is indicated that lamp SD2 and display lamp SD3 is while bright explanation live wire
The position of L1 is correct, and test button SB2 is reactionless for pressure, user's earth leakage protective tripping operation explanation user after pressure test button SB1
Single-phase three pole socket be safe and reliable, otherwise have Miswire to wait to fix a breakdown and use again, the resistance of resistance R1 is 300-500
The resistance of Ω or so, resistance R4 and resistance R6 is 6.8K Ω or so.
Protection off zero of the present invention and the single-phase three pole disjunctor connector assembly of ground connection general-purpose self-inspection have protector off zero,
There is phenomenon off zero in electric power system, the zero line that particularly residential quarter three-phase and four-line is powered breaks suddenly, and three-phase firewire load is serious
Will result in part family voltage when uneven to be suddenly increased to be even up to 400V or so more than 250V, or zero line breaks
On a certain phase firewire, will result in a large amount of household electrical appliance and be burned out, once occurring, protector off zero can avoid using for similar accident
The phenomenon that electrical equipment is burned out；With the correct connection to safety ground, to power supply, electricity consumption, the commercial house, residential quarters, independently live
The single-phase three pole sockets safety ground of the user such as the safety ground at family etc. and electrical equipment is detected, it is ensured that safety utilization of electric power.This
Invention circuit is simple, low cost, easy to operate advantage, very with practical value.
Description of the drawings
Fig. 1 protections off zero and the single-phase three pole disjunctor connector assembly appearance schematic diagram of ground connection general-purpose self-inspection
Fig. 2 resistance blood pressure lowerings protection off zero and the single-phase schematic diagram of three pole disjunctor connector assembly circuit one of ground connection general-purpose self-inspection
Fig. 3 resistance blood pressure lowerings protection off zero and the single-phase schematic diagram of three pole disjunctor connector assembly circuit two of ground connection general-purpose self-inspection
The single-phase three pole disjunctor connector assembly of L live wires, N zero lines, E safety lines, CH, K protective seletion switch off zero, SB in Fig. 1
Test button, SD display lamps.
The single-phase three pole disjunctor connector assembly of L1 live wires, N1 zero lines, E1 safety lines, CHT1, K1 protection choosing off zero in Fig. 2, Fig. 3
Select switch, SB1-SB2 test buttons, SD1-SD3 display lamps, R1-R6 resistance.
Specific embodiment
Fig. 1 is protection off zero and is grounded the single-phase three pole disjunctor connector assembly appearance schematic diagram of general-purpose self-inspection, embodiment：It is off zero
Protection and the single-phase three pole disjunctor connector assembly of ground connection general-purpose self-inspection are that single-phase tripolar plug is connected as a single entity with single-phase three pole socket, single-phase
The back of three-terminal polarized plus plug is single-phase three pole socket, and resistance blood pressure lowering protection off zero is provided with inside it and general-purpose self-inspection single-phase three is grounded
Pole disjunctor connector assembly circuit constitutes protection off zero and is grounded the single-phase three pole disjunctor connector assembly of general-purpose self-inspection, the circuit knot of protection off zero
Structure is to bridge one in single-phase three pole disjunctor connector assembly CH between zero line N and safety line E to connect with protective seletion off zero switch K
One current-limiting resistance, protective seletion switch K off zero opens protection off zero when connecting, and the circuit structure of general-purpose self-inspection is safety line
Self-inspection display lamp SD and examination are respectively mounted and live wire L and zero line N between and safety ground E and zero line N between E and live wire L
Test button SB, self-inspection display lamp SD is in series with dropping resistor, and test button SB is in series with current-limiting resistance, according to display lamp SD it is bright with
Each whether position is correct secretly to judge safety line E1 and zero line N1 and live wire L1, then further confirmed that by test button SB,
Operation principle is after single-phase three pole disjunctor connector assembly CH inserts single-phase three pole socket of user, if safety line E and live wire L
Between between display lamp SD and live wire L and zero line N display lamp SD3 simultaneously bright explanation live wire L1 position it is correct, pressure live wire L and
Test button SB is reactionless between zero line N, and user's earth leakage protective is jumped after test button SB between pressure safety line E and live wire L
Single-phase three pole socket of lock explanation user is safe and reliable, otherwise has Miswire to wait to fix a breakdown and use again.Protection off zero is
When zero line occurs in externally fed circuit to be disconnected or ride on live wire, because three phase supply power source loads difference three-phase voltage loses
Balance, voltage may increase between the zero line N1 and safety line E1 of user, be connected across electricity between zero line N1 and safety line E1
When the electric current of resistance R1 rises to a certain numerical value, zero line N1 also corresponds to electric leakage, the earth leakage protective meeting of user more than live wire L1 electric currents
Trip immediately, the electrical equipment for being effectively protected user exempts from damage.
Fig. 2, Fig. 3 are resistance blood pressure lowering protection off zero and the single-phase three pole disjunctor connector assembly circuit theory diagrams of general-purpose self-inspection, are implemented
Mode：Resistance blood pressure lowering protection off zero and the single-phase three pole disjunctor connector assembly circuit of ground connection general-purpose self-inspection are in single-phase three pole disjunctor plug
Protective seletion switch off zero and safe self-inspection display lamp and test are installed An Button on seat, the circuit structure of protection off zero is single-phase three
Zero line N1 connections resistance R1 in the disjunctor connector assembly CHT1 of pole, the resistance R1 other ends connect protective seletion off zero and switch K1, guarantor off zero
Shield selecting switch K1 other end attachment security ground wire E1, protective seletion switch K1 off zero is connected across zero when connecting equivalent to resistance R1
Between line N1 and safety line E1, operation principle is single-phase three pole socket of single-phase three pole disjunctor connector assembly CHT1 insertions user, when
When externally fed circuit zero line disconnection occurs or rides on live wire, because three phase supply power source loads difference three-phase voltage loses flat
Weighing apparatus, voltage may increase between the zero line N1 and safety line E1 of user, be connected across resistance between zero line N1 and safety line E1
When the electric current of R1 rises to a certain numerical value, zero line N1 also corresponds to electric leakage more than live wire L1 electric currents, and the earth leakage protective of user can be stood
Trip, the electrical equipment for being effectively protected user exempts from damage, between safety line E1 and live wire L1 and safety ground E1 with
Self-inspection display lamp and test button are respectively mounted and live wire L1 and zero line N1 between zero line N1, according to display lamp it is bright with secretly sentence
Each whether position is correct for disconnected safety line E1 and zero line N1 and live wire L1, then further confirmed that by test button.If peace
Full display lamp SD3 simultaneously bright explanation live wire L1 between display lamp SD2 and live wire L1 and zero line N1 between ground wire E1 and live wire L1
Position is correct, if the earth leakage protective that at this moment live wire L1 or zero line N1 have electric leakage user also can trip immediately, is effectively protected people
Body and electrical equipment safety.Specific embodiment is to see figures.1.and.2, safety line in single-phase three pole disjunctor connector assembly CHT1
E1 connects protective seletion switch K1 off zero, test button SB1, display lamp SD1 and display lamp SD2, display lamp SD1 connection electricity simultaneously
Resistance R2, protective seletion switch K1 other ends connection resistance R1 off zero, the resistance R1 other ends and the resistance R2 other ends connect together zero
Line N1, the display lamp SD2 other end connects resistance R3, test button SB1 other ends connection resistance R4, the resistance R3 other ends and resistance
The R4 other ends connect together live wire L1, zero line N1 connection display lamp SD3 and test button SB2, display lamp SD3 other ends connection electricity
Resistance R5, test button SB2 other ends connection resistance R6, the resistance R5 other ends and the resistance R6 other ends connect together live wire L1,.Work
Make principle explanation：Display lamp SD1, display lamp SD2 and display lamp SD3 use light emitting diode or neon lamp, using light emitting diode
When resistance R2, resistance R5 and resistance R3 resistance select 82K Ω or so, a diode and light emitting diode string can also be increased
Connection improves breakdown reverse voltage protection light emitting diode, and using the resistance of resistance R2, resistance R3 and resistance R5 during neon lamp 1M is selected
More than Ω, when single-phase three pole disjunctor connector assembly CHT1 is inserted in single-phase three pole socket of user, if it is indicated that lamp SD2 and display lamp
The position of SD3 simultaneously bright explanation live wire L1 is correct, and it is reactionless to depress test button SB2, test button SB1 be leak(age) test by
Button, single-phase three pole socket for depressing user's earth leakage protective tripping operation explanation user after test button SB1 is safe and reliable, is otherwise had
Miswire is waited to be fixed a breakdown and use again, and the resistance of resistance R1 is 300-500 Ω or so, and the resistance of resistance R4 and resistance R6 is 6.8K
Ω or so.
Claims (1)
1. it is off zero to protect and be grounded the single-phase three pole disjunctor connector assembly of general-purpose self-inspection, it is characterised in that protection off zero and ground connection general-purpose are certainly
It is that single-phase tripolar plug is connected as a single entity with single-phase three pole socket to examine single-phase three pole disjunctor connector assembly, and the back of single-phase tripolar plug is
Single-phase three pole socket, is provided with the protection off zero of resistance voltage-dropping type and is grounded the single-phase three pole disjunctor connector assembly electricity of general-purpose self-inspection inside it
Road constitutes protection off zero and is grounded the single-phase three pole disjunctor connector assembly of general-purpose self-inspection, and the circuit structure of protection off zero is single-phase three extremely to insert
A current-limiting resistance connected with protective seletion off zero switch, protection off zero are bridged in headstock between zero line and safety line
Selecting switch opens protection off zero when connecting, the circuit structure of general-purpose self-inspection be between safety line and live wire and safety line and
Self-inspection display lamp and test button are respectively mounted and live wire and zero line between zero line, it is electric that self-inspection display lamp is in series with blood pressure lowering
Resistance, test button is in series with current-limiting resistance, and the circuit structure of protection off zero is zero line N1 in single-phase three pole disjunctor connector assembly CHT1
Connection resistance R1, the resistance R1 other ends connect protective seletion off zero and switch K1, protective seletion switch K1 other ends connection peace off zero
Full ground wire E1, protective seletion switch K1 off zero is connected across between zero line N1 and safety line E1 when connecting equivalent to resistance R1, single
Single-phase three pole socket of the pole disjunctor connector assembly CHT1 insertion users of phase three, when zero line occurs in externally fed circuit live wire is disconnected or rides over
When upper, due to three phase supply power source loads difference three-phase voltage disequilibrium, electricity between the zero line N1 and safety line E1 of user
Pressure increases, and when the electric current for being connected across resistance R1 between zero line N1 and safety line E1 rises to a certain numerical value, the electric leakage of user is protected
Shield can trip immediately, and the electrical equipment for being effectively protected user exempts from damage, between safety line E1 and live wire L1 and safely
Self-inspection display lamp and test button, particular circuit configurations are respectively mounted and live wire L1 and zero line N1 between line E1 and zero line N1
It is that safety line E1 switchs K1, test button SB1, refers to while connecting protective seletion off zero in single-phase three pole disjunctor connector assembly CHT1
Show lamp SD1 and display lamp SD2, display lamp SD1 connection resistance R2, protective seletion switch K1 other ends connection resistance R1 off zero, electricity
The resistance R1 other ends and the resistance R2 other ends connect together zero line N1, the display lamp SD2 other ends connection resistance R3, test button SB1
The other end connects resistance R4, and the resistance R3 other ends and the resistance R4 other ends connect together live wire L1, zero line N1 connection display lamp SD3
With test button SB2, display lamp SD3 other ends connection resistance R5, test button SB2 other ends connection resistance R6, resistance R5 is another
One end and the resistance R6 other ends connect together live wire L1, and display lamp SD1, display lamp SD2 and display lamp SD3 use light emitting diode
Or neon lamp, the resistance of resistance R1 is 6.8K Ω for the resistance of 300-500 Ω, resistance R4 and resistance R6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410350980.8A CN104103973B (en) | 2013-05-16 | 2013-05-16 | Zero protection and grounding general self-inspection single-phase three-pole integrated socket |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310202617.7A CN103296541B (en) | 2013-05-16 | 2013-05-16 | Protection off zero and ground connection general-purpose self-checking plug seat |
| CN201410350980.8A CN104103973B (en) | 2013-05-16 | 2013-05-16 | Zero protection and grounding general self-inspection single-phase three-pole integrated socket |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310202617.7A Division CN103296541B (en) | 2013-05-16 | 2013-05-16 | Protection off zero and ground connection general-purpose self-checking plug seat |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104103973A CN104103973A (en) | 2014-10-15 |
| CN104103973B true CN104103973B (en) | 2017-04-12 |
Family
ID=51671895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410350980.8A Expired - Fee Related CN104103973B (en) | 2013-05-16 | 2013-05-16 | Zero protection and grounding general self-inspection single-phase three-pole integrated socket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104103973B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0714492A (en) * | 1993-06-25 | 1995-01-17 | Matsushita Electric Works Ltd | Leakage indicating plug socket |
| CN2209394Y (en) * | 1994-12-21 | 1995-10-04 | 周民智 | Automatic leak protection terminal |
| CN2409659Y (en) * | 1999-10-28 | 2000-12-06 | 汤健 | Electrical safety experiment case for single-phase three-hole planar electrode socket and electric leakage protector |
| JP2006050692A (en) * | 2004-07-30 | 2006-02-16 | Kawamura Electric Inc | Power socket |
| CN101017947A (en) * | 2006-12-23 | 2007-08-15 | 钱加灿 | Full-function secure plug |
| CN201327931Y (en) * | 2008-12-17 | 2009-10-14 | 刘辉辉 | Plug provided with socket |
| CN203813142U (en) * | 2013-05-16 | 2014-09-03 | 介国安 | Faulted neutral line protection and grounding universal self-checking single-phase three-pole connected connector assembly |
-
2013
- 2013-05-16 CN CN201410350980.8A patent/CN104103973B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0714492A (en) * | 1993-06-25 | 1995-01-17 | Matsushita Electric Works Ltd | Leakage indicating plug socket |
| CN2209394Y (en) * | 1994-12-21 | 1995-10-04 | 周民智 | Automatic leak protection terminal |
| CN2409659Y (en) * | 1999-10-28 | 2000-12-06 | 汤健 | Electrical safety experiment case for single-phase three-hole planar electrode socket and electric leakage protector |
| JP2006050692A (en) * | 2004-07-30 | 2006-02-16 | Kawamura Electric Inc | Power socket |
| CN101017947A (en) * | 2006-12-23 | 2007-08-15 | 钱加灿 | Full-function secure plug |
| CN201327931Y (en) * | 2008-12-17 | 2009-10-14 | 刘辉辉 | Plug provided with socket |
| CN203813142U (en) * | 2013-05-16 | 2014-09-03 | 介国安 | Faulted neutral line protection and grounding universal self-checking single-phase three-pole connected connector assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104103973A (en) | 2014-10-15 |
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| C53 | Correction of patent for invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 325200 Ruian City, south of the Yangtze River in the city of riverside Street standard factory building light industrial zone, the first floor of the ninth floor of the first floor of the Thai Electrical Appliance Co., Ltd., four Applicant after: Jie Guoan Address before: 325207 Zhejiang province Ruian City Feiyun Town Yun Zhou Industrial Zone Thai Electric Appliance Co. Ltd Applicant before: Jie Guoan |
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Effective date of registration: 20171024 Address after: 300222 3-10-605-607, Jin Fu Li, Tianjin, Hexi District Patentee after: Hu Lijuan Address before: 325200 Ruian City, south of the Yangtze River in the city of riverside Street standard factory building light industrial zone, the first floor of the ninth floor of the first floor of the Thai Electrical Appliance Co., Ltd., four Patentee before: Jie Guoan |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170412 Termination date: 20180516 |
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| CF01 | Termination of patent right due to non-payment of annual fee |