CN114156702B - Zero line broken wire protection type power strip - Google Patents
Zero line broken wire protection type power strip Download PDFInfo
- Publication number
- CN114156702B CN114156702B CN202111427911.9A CN202111427911A CN114156702B CN 114156702 B CN114156702 B CN 114156702B CN 202111427911 A CN202111427911 A CN 202111427911A CN 114156702 B CN114156702 B CN 114156702B
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- CN
- China
- Prior art keywords
- wire
- zero line
- coil
- electrically connected
- pulling mechanism
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- H01R13/717—Structural association with built-in electrical component with built-in light source
-
- 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
- H01R13/6608—Structural association with built-in electrical component with built-in single component
- H01R13/6625—Structural association with built-in electrical component with built-in single component with capacitive component
-
- 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
- H01R13/6608—Structural association with built-in electrical component with built-in single component
- H01R13/6633—Structural association with built-in electrical component with built-in single component with inductive component, e.g. transformer
-
- 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
-
- 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
- H01R13/713—Structural association with built-in electrical component with built-in switch the switch being a safety switch
-
- 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
- H01R13/719—Structural association with built-in electrical component specially adapted for high frequency, e.g. with filters
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Breakers (AREA)
Abstract
The invention discloses a zero line broken line protection type power strip which comprises a warning lamp, a rectifier bridge, a filter capacitor, a key trip switch, a coil pin pulling mechanism and a power strip, wherein the warning lamp, the rectifier bridge, the filter capacitor, the key trip switch and the coil pin pulling mechanism are arranged in the power strip device. When the alternating voltage between the zero line N and the ground line G reaches 20V or above, the coil pin pulling mechanism acts, and the key trip switch is disconnected; when the alternating voltage between the zero line N and the ground line G reaches 10V or more, the warning lamp is obviously turned on. The device has the characteristics of sensitive response to zero line breakage accidents, simple structure and high reliability, and can provide effective zero line breakage protection function for electric equipment.
Description
Technical Field
The invention relates to the field of intelligent power strip, in particular to a strip with a zero line breakage protection function.
Background
Most 220V electric equipment adopts row's of inserting power supply, and when the zero line of entering the family, entering room unoccupied zero line or wall socket, the maloperation when loosening or live working leads to the zero line disconnection, and the zero line in the electric equipment will become the live wire this moment, can lead to the insulation of circuit board or other materials between zero line and the ground wire on the circuit board to be broken down to lead to electric equipment damage even fire accident's emergence. The disconnection of the zero line can also cause the equipment with the protection of zero connection to lose the protection function, and the household air switch generally has the overload short-circuit protection and the electric leakage protection functions. In order to solve the problem, the existing method is to add a zero line disconnection protection device on the home junction box, but the device can only provide protection when the zero line of the external line is disconnected, but cannot protect the zero line disconnection condition in the indoor power line, so that a power strip with a zero line disconnection protection function needs to be developed.
Disclosure of Invention
The invention aims at the problems and provides the power strip which can identify the disconnection condition of the zero line in the indoor power line and provide the disconnection protection function in time.
In order to achieve the above purpose, the invention provides a zero line broken line protection type power strip, wherein an insulating shell of the power strip is internally provided with: a zero line N binding post electrically connected with the zero line N, a ground line G binding post electrically connected with the ground line G and a fire wire L binding post electrically connected with the fire wire L through a key trip switch;
the zero line N wiring terminal is electrically connected with one end of the warning lamp through a wire, and the other end of the warning lamp is electrically connected with the ground wire G wiring terminal through a wire; the zero line N wiring terminal is electrically connected with the first alternating current input end of the rectifier bridge through a wire at the same time, and the second alternating current input end of the rectifier bridge is electrically connected with the ground wire G wiring terminal through a wire; the positive pole of the direct current output end of the rectifier bridge is electrically connected with the positive pole of the coil pin pulling mechanism, the negative pole of the direct current output end of the rectifier bridge is electrically connected with the negative pole of the coil pin pulling mechanism, and the two ends of the coil pin pulling mechanism are connected with filter capacitors in parallel;
a spring is arranged in the coil of the coil pin pulling mechanism, the spring is fixedly connected with a magnetic connecting rod, a pin head is arranged at one end of the magnetic connecting rod, which is far away from the spring, and the pin head is in bayonet plug-in connection with the side surface of an insulating key of the key release switch;
the electric conduction connecting piece is installed at the insulating button bottom of button tripping switch, the electric conduction connecting piece is connected with respectively through the conductor shell fragment with live wire L binding post electricity be connected first external circuit connecting terminal, with live wire L electricity be connected second external circuit connecting terminal.
In a preferred mode, when the current flowing through the coil of the coil pin pulling mechanism exceeds 0.5A or the alternating voltage between the zero line N and the ground line G reaches 20V or more, the coil attracts the magnetic connecting rod to shrink, the magnetic connecting rod moves along the pin pulling direction, and the insulating key of the key release switch is tripped.
In a preferred embodiment, the warning lamp is turned on when the ac voltage between the neutral line N and the ground line G reaches 10V or more.
The beneficial effects of the invention are as follows: the invention has the characteristics of sensitive response to the disconnection of the zero line, simple structure and high reliability, and can provide effective protection function for the disconnection of the zero line for electric equipment.
Drawings
FIG. 1 is a block diagram of the overall apparatus of the present invention;
FIG. 2 is a schematic diagram of a key release switch of the present invention;
fig. 3 is a schematic diagram of a coil pin pulling mechanism according to the present invention.
Detailed Description
The invention provides a power strip with a zero line breakage protection function, wherein an insulating shell of the power strip is internally provided with: a zero line N binding post electrically connected with the zero line N, a ground line G binding post electrically connected with the ground line G and a fire wire L binding post electrically connected with the fire wire L through a key trip switch;
the zero line N wiring terminal is electrically connected with one end of the warning lamp through a wire, and the other end of the warning lamp is electrically connected with the ground wire G wiring terminal through a wire; the zero line N wiring terminal is electrically connected with the first alternating current input end of the rectifier bridge through a wire at the same time, and the second alternating current input end of the rectifier bridge is electrically connected with the ground wire G wiring terminal through a wire; the positive pole of the direct current output end of the rectifier bridge is electrically connected with the positive pole of the coil pin pulling mechanism, the negative pole of the direct current output end of the rectifier bridge is electrically connected with the negative pole of the coil pin pulling mechanism, and the two ends of the coil pin pulling mechanism are connected with filter capacitors in parallel;
a spring is arranged in the coil of the coil pin pulling mechanism, the spring is fixedly connected with a magnetic connecting rod, a pin head is arranged at one end of the magnetic connecting rod, which is far away from the spring, and the pin head is in bayonet plug-in connection with the side surface of an insulating key of the key release switch;
the electric conduction connecting piece is installed at the insulating button bottom of button tripping switch, the electric conduction connecting piece is connected with respectively through the conductor shell fragment with live wire L binding post electricity be connected first external circuit connecting terminal, with live wire L electricity be connected second external circuit connecting terminal.
When the current flowing through the coil of the coil pin pulling mechanism exceeds 0.5A or the alternating voltage between the zero line N and the ground line G reaches 20V or more, the coil attracts the magnetic connecting rod to shrink, the magnetic connecting rod moves along the pin pulling direction, and the insulating key of the key tripping switch is tripped.
When the alternating voltage between the zero line N and the ground line G reaches 10V or more, the warning lamp is turned on.
Specific examples:
as shown in fig. 1, the device of the invention is composed of a warning lamp LED1, a rectifier bridge D1, a filter capacitor C1, a key trip switch K1, a coil pin pulling mechanism J1 and a power strip P1, wherein the warning lamp, the rectifier bridge, the filter capacitor, the key trip switch and the coil pin pulling mechanism are installed in the power strip device.
As shown in fig. 1, the two ac input ends of the rectifier bridge are respectively a first ac input end and a second ac input end, the first ac input end is connected to the zero line N, the second ac input end is connected to the ground line G, the dc output end of the rectifier bridge is provided with an anode and a cathode, the anode is connected to one end of the filter capacitor, the anode is further connected to the coil anode of the coil pin pulling mechanism, the cathode is connected to the other end of the filter capacitor, the cathode is further connected to the coil cathode of the coil pin pulling mechanism, and when the ac voltage between the zero line N and the ground line G reaches 20V or above, the coil pin pulling mechanism J1 acts to disconnect the key trip switch K1.
As shown in fig. 1, one end of the warning lamp LED1 is connected to the neutral line N, and the other end is connected to the ground line G, and when the ac voltage between the neutral line N and the ground line G reaches 10V or more, the warning lamp LED1 is significantly lighted.
As shown in fig. 2, the key release switch K1 includes an insulating key, a conductive connecting piece, a conductive elastic piece, two external circuit connection terminals and a bayonet, where the two external circuit connection terminals are a first external circuit connection terminal and a second external circuit connection terminal respectively; the second external circuit connecting terminal is connected with the input terminal Lin of the live wire L, the first external circuit connecting terminal is used as the output terminal Lout of the live wire L to be connected with the live wire L wiring terminal of the power strip P1, the bayonet is connected with the magnetic connecting rod of the coil pin pulling mechanism, and after the key release switch K1 is disconnected, the switch needs to be pressed again to recover power supply.
As shown in fig. 3, the coil pin pulling mechanism J1 is composed of a coil, a spring and a magnetic connecting rod, the positive electrode of the coil is connected to the positive electrode of the dc output end of the rectifier bridge, the negative electrode of the coil is connected to the negative electrode of the dc output end of the rectifier bridge, the spring is connected to the magnetic connecting rod, the magnetic connecting rod comprises a guide rod, a magnet block and a pin head at the tail end of the guide rod, the spring is placed inside the coil, the magnetic connecting rod is connected to the bayonet of the key release switch, and when the current flowing in the coil exceeds the preset limit value 0.5A, the magnetic connecting rod is rapidly separated from the bayonet of the key release switch K1, so that the key release switch K1 is disconnected and the live wire L is disconnected.
As shown in fig. 1, the filter capacitor C1 functions as an output waveform of gentle full-wave rectification.
As shown in fig. 1, the power strip P1 has three connection terminals: the live wire L connecting terminal, the zero line N binding post, the ground wire G binding post, live wire L connecting terminal connects live wire output terminal Lout, and zero line N binding post connects zero line N, and ground wire G binding post connects ground wire G.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should be covered by the protection scope of the present invention by making equivalents and modifications to the technical solution and the inventive concept thereof.
Claims (3)
1. The utility model provides a zero line broken wire protection formula inserts row which characterized in that, install in the insulating housing of row of inserting: a zero line N binding post electrically connected with the zero line N, a ground line G binding post electrically connected with the ground line G and a fire wire L binding post electrically connected with the fire wire L through a key trip switch;
the zero line N wiring terminal is electrically connected with one end of the warning lamp through a wire, and the other end of the warning lamp is electrically connected with the ground wire G wiring terminal through a wire; the zero line N wiring terminal is electrically connected with the first alternating current input end of the rectifier bridge through a wire at the same time, and the second alternating current input end of the rectifier bridge is electrically connected with the ground wire G wiring terminal through a wire; the positive pole of the direct current output end of the rectifier bridge is electrically connected with the positive pole of the coil pin pulling mechanism, the negative pole of the direct current output end of the rectifier bridge is electrically connected with the negative pole of the coil pin pulling mechanism, and the two ends of the coil pin pulling mechanism are connected with filter capacitors in parallel;
the coil of the coil pin pulling mechanism is internally provided with a spring, the spring is fixedly connected with a magnetic connecting rod, the magnetic connecting rod comprises a guide rod, a magnet block and a pin head at the tail end of the guide rod, one end of the magnetic connecting rod, which is far away from the spring, is provided with the pin head, and the pin head is in bayonet plug-in connection with the side surface of an insulating key of the key release switch; when the current flowing in the coil exceeds a preset limit value, the magnetic connecting rod is separated from the bayonet of the key trip switch, so that the key trip switch is disconnected, and the live wire is cut off;
the coil pin pulling mechanism is arranged in the power strip device;
the electric conduction connecting piece is installed at the insulating button bottom of button tripping switch, the electric conduction connecting piece is connected with respectively through the conductor shell fragment with live wire L binding post electricity be connected first external circuit connecting terminal, with live wire L electricity be connected second external circuit connecting terminal.
2. The zero line breakage protection strip according to claim 1, wherein when the current flowing through the coil of the coil pin pulling mechanism exceeds 0.5A or the alternating voltage between the zero line N and the ground line G reaches 20V or more, the coil attracts the magnetic connecting rod to shrink, the magnetic connecting rod moves along the pin pulling direction, and the insulating key of the key trip switch is tripped.
3. The neutral wire breakage protection strip according to claim 1, wherein the warning lamp is turned on when the alternating current voltage between the neutral wire N and the ground wire G reaches 10V or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111427911.9A CN114156702B (en) | 2021-11-26 | 2021-11-26 | Zero line broken wire protection type power strip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111427911.9A CN114156702B (en) | 2021-11-26 | 2021-11-26 | Zero line broken wire protection type power strip |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114156702A CN114156702A (en) | 2022-03-08 |
| CN114156702B true CN114156702B (en) | 2023-08-25 |
Family
ID=80457967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111427911.9A Active CN114156702B (en) | 2021-11-26 | 2021-11-26 | Zero line broken wire protection type power strip |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114156702B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0103167A1 (en) * | 1982-08-19 | 1984-03-21 | BROWN, BOVERI & CIE Aktiengesellschaft | Circuit breaker with leakage current release |
| CN2276678Y (en) * | 1994-10-17 | 1998-03-18 | 袁英 | Domestic single-phase zero power-off earth leakage protective device |
| CN101651273A (en) * | 2008-08-13 | 2010-02-17 | 浙江正泰建筑电器有限公司 | Single magnet type electric leakage protection socket |
| CN103296541A (en) * | 2013-05-16 | 2013-09-11 | 介国安 | Universal plug with null-line cutoff protection, ground connection and self-checking functions |
| CN104538954A (en) * | 2014-12-23 | 2015-04-22 | 黄华道 | Power supply device having overcurrent protection function and electric leakage protection function |
| CN205029118U (en) * | 2015-07-28 | 2016-02-10 | 深圳市良辉科技有限公司 | Convertible protected mode's leakage protection plug |
| CN108011256A (en) * | 2016-12-20 | 2018-05-08 | 芜湖美的厨卫电器制造有限公司 | Leakage protecting plug and electric heater |
| CN111129809A (en) * | 2019-12-05 | 2020-05-08 | 国网辽宁省电力有限公司大连供电公司 | Magnetic control energy storage plug |
| CN213636509U (en) * | 2020-11-18 | 2021-07-06 | 成都理工大学 | Safety socket with live-line warning and anti-false-insertion electric shock functions for zero line |
| CN217741584U (en) * | 2021-11-26 | 2022-11-04 | 国网辽宁省电力有限公司大连供电公司 | Power strip with zero line disconnection protection function |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102611071B (en) * | 2011-01-25 | 2015-05-20 | 黄华道 | Electric leakage detecting protecting circuit with magnetic locking mechanism |
| CN108648937B (en) * | 2018-05-29 | 2023-09-19 | 德布森电气（上海）有限公司 | Dual-power overlapping closing operation mechanism |
| US10777946B2 (en) * | 2018-08-03 | 2020-09-15 | Hak Kee Chu | Temperature control power cord, power cord with power-off indication, and power cord connected with load power source |
-
2021
- 2021-11-26 CN CN202111427911.9A patent/CN114156702B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0103167A1 (en) * | 1982-08-19 | 1984-03-21 | BROWN, BOVERI & CIE Aktiengesellschaft | Circuit breaker with leakage current release |
| CN2276678Y (en) * | 1994-10-17 | 1998-03-18 | 袁英 | Domestic single-phase zero power-off earth leakage protective device |
| CN101651273A (en) * | 2008-08-13 | 2010-02-17 | 浙江正泰建筑电器有限公司 | Single magnet type electric leakage protection socket |
| CN103296541A (en) * | 2013-05-16 | 2013-09-11 | 介国安 | Universal plug with null-line cutoff protection, ground connection and self-checking functions |
| CN104538954A (en) * | 2014-12-23 | 2015-04-22 | 黄华道 | Power supply device having overcurrent protection function and electric leakage protection function |
| CN205029118U (en) * | 2015-07-28 | 2016-02-10 | 深圳市良辉科技有限公司 | Convertible protected mode's leakage protection plug |
| CN108011256A (en) * | 2016-12-20 | 2018-05-08 | 芜湖美的厨卫电器制造有限公司 | Leakage protecting plug and electric heater |
| CN111129809A (en) * | 2019-12-05 | 2020-05-08 | 国网辽宁省电力有限公司大连供电公司 | Magnetic control energy storage plug |
| CN213636509U (en) * | 2020-11-18 | 2021-07-06 | 成都理工大学 | Safety socket with live-line warning and anti-false-insertion electric shock functions for zero line |
| CN217741584U (en) * | 2021-11-26 | 2022-11-04 | 国网辽宁省电力有限公司大连供电公司 | Power strip with zero line disconnection protection function |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114156702A (en) | 2022-03-08 |
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