CN201022068Y - Device for blocking electrical connection between power supply input and output end - Google Patents
Device for blocking electrical connection between power supply input and output end Download PDFInfo
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- CN201022068Y CN201022068Y CNU200620158467XU CN200620158467U CN201022068Y CN 201022068 Y CN201022068 Y CN 201022068Y CN U200620158467X U CNU200620158467X U CN U200620158467XU CN 200620158467 U CN200620158467 U CN 200620158467U CN 201022068 Y CN201022068 Y CN 201022068Y
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- power supply
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- earth leakage
- leakage protective
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Abstract
The utility model discloses a device for preventing the electric connection between the input end and the output end of a power supply, which comprises a relay, an iron core, a moving lock patch, and a spring, wherein the iron core is arranged in the coil of the relay, and the front end of the iron core is connected with the moving lock patch and can push the moving lock patch to move. The moving lock patch is located below a reset guide lock which is under a reset push button of an earth leakage protective socket / or a plug, and can block / or keep off the channel in which the reset guide lock moves. In the case that the trip coil gets out of order or the setter mistakenly connects the power supply live wire and the neutral conductor in the wall with the power supply output end of the earth leakage protective socket / or the plug, the relay quits working, the iron core inside the coil quits acting, and the moving lock patch linked with the iron core blocks the channel in which the reset guide lock moves all the time for ensuring non-contact conduction between the moving contacts of the power supply output conductor and the fixed contacts of the power supply input conductor of the earth leakage protective socket / or the plug, and non-electric connection between the input end and the output end of the earth leakage protective socket / or the plug.
Description
Technical field
The utility model relates to a kind of being installed in supply socket (GFCI) with creepage protection function or the portable leakage protecting plug; when earth leakage protective socket/or leakage protecting plug when existing reverse wiring mistake or tripping coil fault trip circuit to open circuit, be used to the device that stops earth leakage protective socket/plug-in power pack input to be connected with output electric power.
Background technology
The safe in utilization of household electrical appliance is subject to people's attention day by day; for fear of the generation that causes user's person electric shock injury accident because of the household electrical appliance electric leakage, the power input at household electrical appliance all is equipped with attaching plug or the supply socket (being called for short earth leakage protective socket, leakage protecting plug) with creepage protection function usually.
At present, great majority have the supply socket (GFCI) of creepage protection function, as disclosed earth leakage protective sockets such as US3953766, US4051544, US4618907, though all have creepage protection function, do not have reverse wiring error protection function.When installation personnel links to each other the power firestreak in the wall, the neutral line mistakenly with the power output end of earth leakage protective socket; leakage current detection protection circuit in earth leakage protective socket does not have under the situation of work, and the power supply output plughole on earth leakage protective socket surface just has power supply output.If this moment, leaky appearred in household electrical appliance; because there is the reverse wiring mistake in earth leakage protective socket, its inner leakage current detection protection circuit is work not, and earth leakage protective socket just has power supply output; so, very easily cause the generation of user's person electric shock injury accident.
In addition, also there is a potential safety hazard in present most of earth leakage protective socket.Make the tripping coil SOL fault of reset button dropout/tripping operation in earth leakage protective socket, when trip circuit opened circuit, the reset button of earth leakage protective socket still can reset, and its power input can realize still that with output electric power is connected.
Fig. 1 is common earth leakage protective socket (GFCI) fundamental diagram.As shown in the figure, the single-phase three-wire power supply output plughole RECEPTACLE on earth leakage protective socket surface directly is connected on the live wire HOT of GFCI power output end LOAD and the neutral line WHITE.When if the installer links to each other the power firestreak HOT in the wall with the live wire HOT of power output end LOAD with neutral line WHITE mistakenly with neutral line WHITE; whether no matter electric power connects K switch closed; power supply output plughole RECEPTACLE all has power supply output; if electric power connection this moment K switch disconnects; so, the power supply of power supply output plughole RECEPTACLE output does not just have creepage protection function.If this moment, leaky appearred in household electrical appliance, very easily cause the generation of user's person electric shock injury accident.
In actual use; it is found that if the installer is when correctly linking to each other with the live wire HOT of earth leakage protective socket power input LINE the power firestreak HOT in the wall, neutral line WHITE with neutral line WHITE; as shown in Figure 1; when tripping coil SOL fault; when trip circuit opens circuit; operation reset button RESET, electric power connect K switch in the same old way can be closed, and power input LINE can realize in the same old way that with live wire HOT, the neutral line WHITE of output LOAD electric power is connected.If this moment, leaky appearred in household electrical appliance, because tripping coil SOL fault, trip circuit opens circuit, and can't make reset button RESET dropout/tripping operation, and power switch K disconnects, the danger that very easily brings the electric shock injures and deaths to the user.
Therefore, a kind of device of necessary invention when earth leakage protective socket/plug exists reverse wiring mistake or tripping coil fault trip circuit to open circuit, can stop earth leakage protective socket/plug-in power pack input to be connected with the electric power of output.
Summary of the invention
In view of the foregoing; the purpose of this utility model provide a kind of be installed in supply socket with creepage protection function/or plug in; when earth leakage protective socket/or plug when existing reverse wiring mistake or tripping coil fault trip circuit to open circuit, can stop earth leakage protective socket/or device of being connected with output electric power of plug-in power pack input.
For achieving the above object, the utility model adopts following design: a kind of device that stops power input to be connected with output electric power, and it is made of relay, iron core, mobile lock-chip, spring;
Iron core is built in the coil of relay, and its front end links to each other with mobile lock-chip, and can promote mobile lock-chip and move; Outside at iron core is with spring;
Described mobile lock-chip be positioned at earth leakage protective socket/or the plug reset button below reset guide lock under, can stop/or get out of the way the passage that the reset guide lock moves.
In specific embodiment of the utility model, the inventor earth leakage protective socket/or the plug interior circuit board on, be provided with a through hole under the reset guide lock, described mobile lock-chip can cover/or expose this through hole.
The coil two ends of described relay with for earth leakage protective socket/or the dc power output end of the power supply circuits of plug control circuit power supply/or ac power input end link to each other, and have a back that terminates at tripping coil at least; Tripping coil is connected in the power supply circuits of powering into control circuit.
The utility model has the advantages that: when earth leakage protective socket/or plug when having reverse wiring mistake or tripping coil fault, can stop effectively earth leakage protective socket/or the plug-in power pack input be connected with the electric power of output.
Description of drawings
Fig. 1 is the common supply socket with creepage protection function/or plug circuit part fundamental diagram;
Fig. 2, Fig. 3 are the utility model structural representation;
Fig. 4 is the utility model electric connecting relation figure;
Fig. 5 is the another kind of electric connecting relation figure of the utility model;
Fig. 6 is the another kind of electric connecting relation figure of the utility model.
Embodiment
The utlity model has reverse wiring protection function prevention reverse wiring mistake in order to make; and when tripping coil fault trip circuit opens circuit; can stop earth leakage protective socket/or the power input of leakage protecting plug be connected with output electric power; as Fig. 2, shown in Figure 3, the device that the disclosed prevention power input that is applied in earth leakage protective socket/leakage protecting plug of the utility model is connected with output electric power is made of relay 1, iron core 2, mobile lock-chip 3, spring 4.Iron core 2 is built in the coil of relay 1, and its front end links to each other with mobile lock-chip 3, and can promote mobile lock-chip 3 and move.Be with spring 4 in the outside of iron core 2.
Earth leakage protective socket/or plug in circuit board 5 on, be provided with a through hole 7 under the reset guide lock 6, mobile lock-chip 3 covers this through hole 7 usually as shown in Figure 2; Have only when earth leakage protective socket/or the plug-in power pack input, the output wiring is correct, tripping coil is intact, when trip circuit is working properly; there is electric current to flow through in relay 1 coil; produce magnetic field; its inner iron core 2 actions; mobile lock-chip 3 is under the effect of relay 1, iron core 2, and mobile lock-chip 3 is moved and just exposes through hole 7 (as shown in Figure 3).Reset guide lock 6 can be normally along earth leakage protective socket/or the center through hole of the release 8 of leakage protecting plug inside move up and down; make earth leakage protective socket/or plug-in power pack input conductor, power supply output conductor on moving contact, fixed contact contact conducting, earth leakage protective socket/or the power input of plug realize that with output electric power is connected.
As Fig. 4, Fig. 5, shown in Figure 6, the two ends of relay (REPLAY) 1 coil with for earth leakage protective socket/or the dc power output end of the power supply circuits of plug control circuit power supply/or ac power input end link to each other, and have a back that terminates at tripping coil SOL at least; Tripping coil SOL is connected in the power supply circuits of powering into control circuit.
As shown in Figure 4, earth leakage protective socket/or the neutral line WHITE series connection of live wire HOT, the diode rectifier bridge D1～D4 of plug-in power pack input LINE, tripping coil SOL, power input LINE constitute the power supply circuits of control circuit power supply.One end of relay (REPLAY) 1 coil positive pole in diode rectifier bridge D1～D4 dc power output end in resistance R 3 and power supply circuits links to each other, and the back that the other end of relay coil is connected on tripping coil SOL links to each other with diode rectifier bridge D1～D4 neutral line WHITE ac power input end.
When tripping coil SOL fault; trip circuit opens circuit; in the time of can't operate as normal; by diode rectifier bridge D1～D4; the power supply circuits for the control circuit power supply that tripping coil SOL series connection constitutes can't form loop no-voltage output; relay 1 coil two ends do not have operating voltage; no current flows through in its coil; can't produce magnetic field; built-in iron core 2 wherein is failure to actuate; mobile lock-chip 3 covers through hole 7 all the time (as Fig. 2; shown in Figure 3); reset guide lock 6 can't be moved up and down along the center through hole of release 8 all the time; driving release 8 moves up and down; thereby; stop the moving contact on the power supply output conductor contact conducting with fixed contact on the power supply input conductor, the realization earth leakage protective socket/or the power input of plug be connected the purpose that the power supply output plughole non-transformer on earth leakage protective socket surface is exported with the output unregulated power.
In like manner; when the installer mistakenly with the power firestreak in the wall; the neutral line and earth leakage protective socket/or plug-in power pack output LOAD when linking to each other; as shown in Figure 4; diode rectifier bridge D1～D4 ac power input end does not have the power supply input in the power supply circuits; can't form the loop operate as normal; even the intact relay of tripping coil SOL 1 coil two ends do not have operating voltage yet; no current flows through in its coil; can't produce magnetic field; built-in iron core 2 wherein is failure to actuate; mobile lock-chip 3 covers through hole 7 all the time; reset guide lock 6 can't move up and down along the center through hole of release 8 all the time; the drive release moves up and down; thereby; stop the moving contact on the power supply output conductor contact conducting with fixed contact on the power supply input conductor, the realization earth leakage protective socket/or the power input of plug be connected the purpose that the power supply output plughole non-transformer on earth leakage protective socket surface is exported with the output unregulated power.
When the installer correctly with the power firestreak HOT in the wall; neutral line WHITE and earth leakage protective socket/or the live wire HOT of plug-in power pack input LINE; zero line WHITE links to each other; when tripping coil SOL is intact; because power supply circuits can operate as normal; relay (RELAY) 1 coil two ends get; produce magnetic field; built-in iron core 2 wherein moves under the effect in magnetic field; driving mobile lock-chip 3 moves; expose through hole 7 (as shown in Figure 3); reset guide lock 6 can move up and down along the center through hole of release 8; the drive release moves up and down; thereby; make the moving contact on the power supply output conductor contact conducting with fixed contact on the power supply input conductor, earth leakage protective socket/or the power input of plug be connected with output electric power, the power supply output plughole on earth leakage protective socket surface has power supply output.
Fig. 5 is the another kind of electric connecting relation figure of the utility model.As shown in the figure, earth leakage protective socket/or the neutral line WHITE series connection of live wire HOT, the diode rectifier bridge D1～D4 of plug-in power pack input LINE, tripping coil SOL, power input LINE constitute the power supply circuits of control circuit power supply.One end of relay (REPLAY) 1 coil positive pole in diode rectifier bridge D1～D4 dc power output end in resistance R 5 and power supply circuits links to each other, and the other end of relay coil is connected on the back of tripping coil SOL and links to each other with negative pole in diode rectifier bridge D1～D4 dc power output end.
When tripping coil SOL fault or installation personnel mistakenly with the power firestreak in the wall; the neutral line and earth leakage protective socket/or plug-in power pack output LOAD when linking to each other; by diode rectifier bridge D1～D4; the power supply circuits that tripping coil SOL constitutes can't operate as normal; relay (RELAY) 1 coil two ends do not have operating voltage; can't work; there is not electric current to flow through in the coil; do not produce magnetic field; its built-in iron core 2 is failure to actuate; Lian Dong mobile lock-chip 3 covers on the through hole 7 below reset guide lock 6 (as shown in Figure 2) all the time with it; reset guide lock 6 can't be moved up and down along the center through hole of release 8 all the time; the drive release moves up and down; thereby; moving contact on the prevention power supply output conductor contacts conducting with the fixed contact on the power supply input conductor; realize earth leakage protective socket/or the power input of plug be connected the purpose that the power supply output plughole non-transformer on earth leakage protective socket surface is exported with the output unregulated power.
Fig. 6 is the another kind of electric connecting relation figure of the utility model.As shown in the figure, earth leakage protective socket/or the neutral line WHITE series connection of live wire HOT, the diode rectifier bridge D1～D4 of plug-in power pack input LINE, tripping coil SOL, power input LINE constitute the power supply circuits of control circuit power supply.One end of relay (REPLAY) 1 coil links to each other with diode rectifier bridge D1～D4 live wire HOT ac power input end in the power supply circuits, and the back that the other end of relay coil is connected on tripping coil SOL links to each other with diode rectifier bridge D1～D4 neutral line WHITE ac power input end in the power supply circuits.
When tripping coil SOL fault or installation personnel mistakenly with the power firestreak in the wall; the neutral line and earth leakage protective socket/or plug-in power pack output LOAD when linking to each other; because the power supply circuits ac power input end does not have voltage; power supply circuits can't operate as normal; relay (RELAY) 1 coil two ends do not have operating voltage; there is not electric current to flow through in the coil; do not produce magnetic field; its built-in iron core 2 is failure to actuate; Lian Dong mobile lock-chip 3 covers on the through hole 7 below reset guide lock 6 (as shown in Figure 2) all the time with it; reset guide lock 6 can't be moved up and down along the center through hole of release 8 all the time; the drive release moves up and down; thereby; moving contact on the prevention power supply output conductor contacts conducting with the fixed contact on the power supply input conductor; realize earth leakage protective socket/or the power input of plug be connected the purpose that the power supply output plughole non-transformer on earth leakage protective socket surface is exported with the output unregulated power.
The utility model has the advantages that: when earth leakage protective socket/or plug when having reverse wiring mistake or tripping coil fault, can stop effectively earth leakage protective socket/or the plug-in power pack input be connected with the electric power of output.
The above is specific embodiments of the invention and the know-why used, and is any based on the equivalent transformation on the technical solution of the present invention basis, all belongs within the protection range of the present invention.
Claims (6)
1. one kind stops power input and the device that output electric power is connected, and it is characterized in that: it is made of relay (1), iron core (2), mobile lock-chip (3), spring (4);
Iron core (2) is built in the coil of relay (1), and its front end links to each other with mobile lock-chip (3), and it is mobile to promote mobile lock-chip (3); Be with spring (4) in the outside of iron core (2);
Described mobile lock-chip (3) be positioned at earth leakage protective socket/or the plug reset button below reset guide lock (6) under, can stop/or get out of the way the passage that the reset guide lock moves.
2. the device that prevention power input according to claim 1 is connected with output electric power; it is characterized in that: earth leakage protective socket/or plug interior circuit board (5) on; being provided with a through hole (7) under the reset guide lock (6), described mobile lock-chip (3) can cover/or expose this through hole (7).
3. the device that prevention power input according to claim 1 and 2 is connected with output electric power, it is characterized in that: the coil two ends of described relay (1) with for earth leakage protective socket/or the dc power output end of the power supply circuits of plug control circuit power supply/or ac power input end link to each other, and have a back that terminates at tripping coil (SOL) at least; Tripping coil (SOL) is connected in the power supply circuits of powering into control circuit.
4. prevention power input according to claim 3 and the device that output electric power is connected is characterized in that: described power supply circuits by earth leakage protective socket/or the live wire (HOT) of plug-in power pack input (LINE), diode rectifier bridge (neutral line (WHITE) series connection of D1～D4), tripping coil (SOL), power input (LINE) constitutes;
One end of relay (1) coil in resistance and power supply circuits diode rectifier bridge (positive pole in the dc power output end of D1～D4) links to each other, and the other end of relay coil is connected on the back of tripping coil (SOL), and (D1～D4) neutral line (WHITE) ac power input end links to each other with diode rectifier bridge.
5. prevention power input according to claim 3 and the device that output electric power is connected is characterized in that: described power supply circuits by earth leakage protective socket/or the live wire (HOT) of plug-in power pack input (LINE), diode rectifier bridge (neutral line (WHITE) series connection of D1～D4), tripping coil (SOL), power input (LINE) constitutes;
One end of relay (1) coil in resistance and power supply circuits diode rectifier bridge (positive pole in the dc power output end of D1～D4) links to each other, and (negative pole in the dc power output end of D1～D4) links to each other for the back that the other end of relay coil is connected on tripping coil (SOL) and diode rectifier bridge.
6. prevention power input according to claim 3 and the device that output electric power is connected is characterized in that: described power supply circuits by earth leakage protective socket/or the live wire (HOT) of plug-in power pack input (LINE), diode rectifier bridge (neutral line (WHITE) series connection of D1～D4), tripping coil (SOL), power input (LINE) constitutes;
(D1～D4) live wire (HOT) ac power input end links to each other diode rectifier bridge in one end of relay (1) coil and the power supply circuits, and (D1～D4) neutral line (WHITE) ac power input end links to each other diode rectifier bridge in the back that the other end of relay coil is connected on tripping coil (SOL) and the power supply circuits.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200620158467XU CN201022068Y (en) | 2006-11-14 | 2006-11-14 | Device for blocking electrical connection between power supply input and output end |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200620158467XU CN201022068Y (en) | 2006-11-14 | 2006-11-14 | Device for blocking electrical connection between power supply input and output end |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201022068Y true CN201022068Y (en) | 2008-02-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200620158467XU Expired - Fee Related CN201022068Y (en) | 2006-11-14 | 2006-11-14 | Device for blocking electrical connection between power supply input and output end |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201022068Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107658649A (en) * | 2017-09-11 | 2018-02-02 | 珠海格力电器股份有限公司 | Plug with electric leakage and arc protection |
| CN109755921A (en) * | 2017-11-08 | 2019-05-14 | 苏州益而益电器制造有限公司 | Ground-fault interrupter |
| CN113708153A (en) * | 2021-09-08 | 2021-11-26 | 张贻涛 | High-current plug and socket |
-
2006
- 2006-11-14 CN CNU200620158467XU patent/CN201022068Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107658649A (en) * | 2017-09-11 | 2018-02-02 | 珠海格力电器股份有限公司 | Plug with electric leakage and arc protection |
| CN109755921A (en) * | 2017-11-08 | 2019-05-14 | 苏州益而益电器制造有限公司 | Ground-fault interrupter |
| CN113708153A (en) * | 2021-09-08 | 2021-11-26 | 张贻涛 | High-current plug and socket |
| CN113708153B (en) * | 2021-09-08 | 2024-04-12 | 张贻涛 | High-current plug and socket |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080213 Termination date: 20131114 |