CN105514722A - Electric leakage protection plug - Google Patents
Electric leakage protection plug Download PDFInfo
- Publication number
- CN105514722A CN105514722A CN201610093618.6A CN201610093618A CN105514722A CN 105514722 A CN105514722 A CN 105514722A CN 201610093618 A CN201610093618 A CN 201610093618A CN 105514722 A CN105514722 A CN 105514722A
- Authority
- CN
- China
- Prior art keywords
- circuit
- voltage stabilizing
- protecting plug
- protection module
- leakage protecting
- 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.)
- Pending
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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
- H01R13/6608—Structural association with built-in electrical component with built-in single 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
- H01R13/665—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
- H01R13/665—Structural association with built-in electrical component with built-in electronic circuit
- H01R13/6683—Structural association with built-in electrical component with built-in electronic circuit with built-in sensor
-
- 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
- H01R13/717—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
- H01R13/717—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
- H02H3/16—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 fault current to earth, frame or mass
- H02H3/162—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 fault current to earth, frame or mass for ac systems
-
- 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
- H02H3/26—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 difference between voltages or between currents; responsive to phase angle between voltages or between currents
- H02H3/32—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 difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
The invention discloses an electric leakage protection plug which comprises a release connected with a power source. The electric leakage protection plug is characterized in that the release is connected with a rectifying circuit, one end of the rectifying circuit is connected with a silicon controlled rectifier, the other end of the rectifying circuit is connected with a current limiting circuit and voltage stabilizing circuits, the voltage stabilizing circuits comprise the first voltage stabilizing circuit and the second voltage stabilizing circuit which are connected in parallel, the first voltage stabilizing circuit and the second voltage stabilizing circuit are connected with a first amplifier and a second amplifier respectively, the first amplifier is connected with a first protection module, the first protection module is connected with a phase zero-phase current transformer, the second amplifier is connected with a second protection module, and the second protection module is connected with a ground wire current transformer. The requirements of production for all parts can be lowered, and the product first pass yield can be improved, so that the cost is reduced, and the product quality is improved.
Description
Technical field
The present invention relates to Electrical Safety resist technology field, especially relate to a kind of leakage protecting plug.
Background technology
Leakage protecting plug can detect the situation of ground strip leakage current or ground strip electrical leakage voltage; and leakage protecting plug can be disconnected timely and effectively; its principle utilizes change over switch selectively line current testing circuit or ground wire voltage testing circuit; specify in " the portable residual current device (PRCD) not with overcurrent protection of GB20044-2012 electrical accessory family expenses and similar applications " standard that country newly promulgates: when being low to moderate AC50V at supply power voltage; lead to when leakage current I △ n, earth leakage protective must action tripping.
At present, it is very difficult that existing leakage protecting plug will reach this requirement, having controlled tight can not action, and the easy slide fastener of pine, causes very large difficulty and cost loss to production, bring puzzlement to user.And in existing leakage protecting plug technology, the solenoid in release is all adopt the coiling of sub-thread enamelled wire; this kind of solenoid internal resistance is usually higher; when supply voltage is normal, this flaw response is also not obvious, when supply voltage is lower; the electric current that solenoid produces is smaller; the electromagnetic force produced is also little, when this type of situation, will thread off during power failure electric current; just require very high to the fitness of each element, do not note a little just can not smooth and easyly threading off.
Summary of the invention
Object of the present invention overcomes the defect that above-mentioned existing leakage protecting plug exists, and provides a kind of leakage protecting plug, can reduce the requirement of producing each parts, improves the first-pass yield of product, thus reaches and reduce costs, and improves the quality of products.
The technical solution adopted for the present invention to solve the technical problems is: a kind of leakage protecting plug, comprise the release be connected with power supply, it is characterized in that: described release connects rectification circuit, one end of described rectification circuit connects controllable silicon, the other end connects current-limiting circuit and voltage stabilizing circuit successively, described voltage stabilizing circuit comprises the first voltage stabilizing circuit and the second voltage stabilizing circuit that are in parallel, the first described voltage stabilizing circuit and the second voltage stabilizing circuit are connected the first amplifier and the second amplifier respectively, the first described amplifier connects the first protection module, first protection module connects phase zero current transformer, the second described amplifier connects the second protection module, second protection module connects ground line current instrument transformer, described leakage protecting plug is also provided with power supply indicator and test circuit and overtemperature module, described power supply indicator and test circuit and overtemperature module are connected in parallel between phase line and zero line respectively, and described test circuit and overtemperature module pass phase zero current transformer by wire.
As preferably, the solenoid of described release adopts bifilar coiling or multiply coiling.
Preferably, described current-limiting circuit is the assembly of resistance or electric capacity or resistance and electric capacity.
Preferably, the assembly that the first described protection module and the second protection module are resistance, form between electric capacity and diode.
Preferably, described phase zero current transformer and the iron core of ground line current instrument transformer are made by permalloy or amorphous alloy or ultramicro-crystal alloy material.
Preferably, described power supply indicator is by LED and diode and connect and form.
Preferably, described leakage protecting plug also comprises ground wire electrification malfunction indicator lamp, and described ground wire electrification malfunction indicator lamp is in parallel with release after being contacted by neon lamp.
The invention has the beneficial effects as follows: independently separated with ground wire detection of electrical leakage assembly by phase zero line detection of electrical leakage assembly; the interference produced when phase zero current transformer and ground wire instrument transformer can be avoided simultaneously to have signal to occur; also solve simultaneously and to cause when sharing amplifying circuit and losing efficacy the creepage protection function of consuming device and the problem that lost efficacy to the unexpected charged defencive function of ground wire simultaneously, thus safer and reliable.And make use of controllable silicon dexterously, only just can realize the detection of weak current inductor, induction to export with a controllable silicon and trigger silicon controlled circuit and zero sequence current mutual inductor detects, responds to and export and trigger the object that silicon controlled circuit separates, so not only two paths of signals can be separated and process but also provide cost savings.Leakage protecting plug of the present invention is mainly used in the earth leakage protective of various household electrical appliance.
Accompanying drawing explanation
Fig. 1 is leakage protecting plug electrical schematic diagram.
Fig. 2 is the leakage protecting plug electronic schematic diagram of one embodiment of the invention.
Embodiment
In order to make technical problem solved by the invention, technical scheme and beneficial effect clearly understand, below in conjunction with accompanying drawing and embodiment, the present invention is further illustrated.Should be appreciated that embodiment described herein only for explaining the present invention, being not intended to limit the present invention.
As shown in Figure 1, a kind of leakage protecting plug of the present invention, comprise the release 1 be connected with power supply, release 1 connects rectification circuit 2, one end of rectification circuit 2 connects controllable silicon 3, the other end connects current-limiting circuit 4 and voltage stabilizing circuit successively, voltage stabilizing circuit comprises the first voltage stabilizing circuit 5 and the second voltage stabilizing circuit 6 be in parallel, first voltage stabilizing circuit 5 and the second voltage stabilizing circuit 6 are connected the first amplifier 7 and the second amplifier 8 respectively, first amplifier 7 connects the first protection module 9, first protection module 9 connects phase zero current transformer 11, second amplifier 8 connects the second protection module 10, second protection module 10 connects ground line current instrument transformer 12, leakage protecting plug is also provided with power supply indicator 13 and test circuit and overtemperature module 14, power supply indicator 13 is by LED and diode and connect and form, power supply indicator 13 and test circuit and overtemperature module 14 are connected in parallel between phase line and zero line respectively, and institute's test circuit and overtemperature module 14 pass phase zero current transformer 11 by wire, leakage protecting plug also comprises ground wire electrification malfunction indicator lamp 15, and ground wire electrification malfunction indicator lamp 15 is in parallel with release 1 after being contacted by neon lamp.
As preferably, the solenoid of release 1 adopts bifilar coiling or multiply coiling, this type of winding mode internal resistance is little, enough electric currents can also be provided when voltage is low to moderate 50V, produce enough electromagnetic forces, to ensure can thread off smoothly when low-voltage, adopt bifilar or multiply coiling, do not need too highly also can reach requirement to the cooperation of correlated parts.Current-limiting circuit 4 is the assembly of resistance or electric capacity or resistance and electric capacity.The assembly that first protection module 9 and the second protection module 10 are resistance, form between electric capacity and diode; be conducive to restriction induced current and induced voltage; when preventing leakage current too large; induced current or voltage cause too greatly the damage to the first amplifier 7 and the second amplifier 8; with anti-breakdown or burn the first amplifier 7 and the second amplifier 8; reach the object of protection first amplifier 7 and the second amplifier 8, can also the interference of clutter reduction.The iron core of phase zero current transformer 11 and ground line current instrument transformer 12 is made by permalloy or amorphous alloy or ultramicro-crystal alloy material.
See Fig. 2; the leakage protecting plug of one embodiment of the invention, primarily of plug body and phase, zero, three pole latches, the phase line of power end, zero line, ground wire, rectification circuit B1, current-limiting circuit R7, R8; R9; R10, R11, controllable silicon Q1, the 1st amplifying circuit U1, the 2nd amplifying circuit U2, phase zero Current Transmit 2, ground line current instrument transformer CT1, test circuit R2, R3; TEST; T, the first protection module R4, R5, R6; D2; D3, C1, the second protection module R12, R13; R14; D8, D9, C9, electromagnetic trip and locker form.Electromagnetic trip and locker form primarily of solenoid RL1 and drive circuit thereof, phase line switch contacts KEY1, zero line switch contacts KEY2, ground wire switch contacts KEY3, spring, reset push rod; leakage protecting plug also comprises power on light R1; LED1; D1, ground wire malfunction coefficient lamp R1, L1.
In this routine side circuit, supply current successively through phase line switch contacts KEY1, solenoid RL1, current-limiting circuit R7, R8, R9, R10, R11 are that the first amplifying circuit U1 and the second amplifying circuit U2 power; Phase zero Current Transmit 2 is connected to the 1st amplifying circuit U1 by the first protection module, and ground line current instrument transformer CT1 is connected to the 2nd amplifying circuit by the second protection module; Power display circuit connects live wire and zero line; Ground wire faulty indication is parallel to ground wire switch contacts KEY3.
During use, the reset push rod of leakage protecting plug is pressed, phase line switch contacts KEY1, zero line switch contacts DEY2 and ground wire switch contacts KEY3 are in closure state, normal ON, power on light LED1 is bright, load end connects match appliance, phase zero line is through in the middle of phase zero Current Transmit 2, when there is electric leakage in matching used electrical equipment, phase zero Current Transmit 2 induces certain signal of telecommunication (current value or magnitude of voltage) by the exception between phase zero line, the signal of telecommunication flows through the first protection module to carry out simple process and enters the 1st amplifying circuit U1, by the 1st amplifying circuit U1, the signal of telecommunication is amplified, when leakage current reaches set point (such as 10mA), the signal of telecommunication can be amplified to that can drive can by the electric current required for silicon Q1 by the 1st amplifying circuit U1, conducting controllable silicon Q1, solenoid RL1 produces very large electric current, be converted into electromagnetic force, drive release, make phase line switch contacts KEY1, zero line switch contacts KEY2, ground wire switch contacts KEY3 disconnects instantaneously, thus electric equipment products are separated with electric power system, better protection personal safety, ground line current instrument transformer CT1 is through ground wire, if when protection system to earth occurs extremely to cause the unexpected charged or matching used electric appliance casing of ground wire charged, ground line current instrument transformer CT1 produces the signal of telecommunication, flow through the second protection module to carry out simple process and enter the 2nd amplifying circuit U2, by the 2nd amplifying circuit U2, the signal of telecommunication is amplified, when leakage current reaches set point (such as 15mA), the signal of telecommunication can be amplified to that can drive can by the electric current required for silicon Q1 by the 2nd amplifying circuit U2, conducting controllable silicon Q1, solenoid RL1 produces very large electric current, be converted into electromagnetic force, drive release, make phase line switch contacts KEY1, zero line switch contacts KEY2, ground wire switch contacts KEY3 disconnects instantaneously, thus electric equipment products are separated with electric power system, better protection personal safety.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equal replacement and improvement etc., all should drop within protection scope of the present invention.
Claims (7)
1. a leakage protecting plug, comprise the release be connected with power supply, it is characterized in that: described release connects rectification circuit, one end of described rectification circuit connects controllable silicon, the other end connects current-limiting circuit and voltage stabilizing circuit successively, described voltage stabilizing circuit comprises the first voltage stabilizing circuit and the second voltage stabilizing circuit that are in parallel, the first described voltage stabilizing circuit and the second voltage stabilizing circuit are connected the first amplifier and the second amplifier respectively, the first described amplifier connects the first protection module, first protection module connects phase zero current transformer, the second described amplifier connects the second protection module, second protection module connects ground line current instrument transformer, described leakage protecting plug is also provided with power supply indicator and test circuit and overtemperature module, described power supply indicator and test circuit and overtemperature module are connected in parallel between phase line and zero line respectively, and described test circuit and overtemperature module pass phase zero current transformer by wire.
2. a kind of leakage protecting plug according to claim 1, is characterized in that: the solenoid of described release adopts bifilar coiling or multiply coiling.
3. a kind of leakage protecting plug according to claim 1, is characterized in that: described current-limiting circuit is the assembly of resistance or electric capacity or resistance and electric capacity.
4. a kind of leakage protecting plug according to claim 1, is characterized in that: the assembly that the first described protection module and the second protection module are resistance, form between electric capacity and diode.
5. a kind of leakage protecting plug according to claim 1, is characterized in that: described phase zero current transformer and the iron core of ground line current instrument transformer are made by permalloy or amorphous alloy or ultramicro-crystal alloy material.
6. a kind of leakage protecting plug according to claim 1, is characterized in that: described power supply indicator is by LED and diode and connect and form.
7. a kind of leakage protecting plug according to claim 1, is characterized in that: described leakage protecting plug also comprises ground wire electrification malfunction indicator lamp, and described ground wire electrification malfunction indicator lamp is in parallel with release after being contacted by neon lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610093618.6A CN105514722A (en) | 2016-02-19 | 2016-02-19 | Electric leakage protection plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610093618.6A CN105514722A (en) | 2016-02-19 | 2016-02-19 | Electric leakage protection plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105514722A true CN105514722A (en) | 2016-04-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610093618.6A Pending CN105514722A (en) | 2016-02-19 | 2016-02-19 | Electric leakage protection plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105514722A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4300742A1 (en) * | 2022-06-28 | 2024-01-03 | Bestway Inflatables & Material Corp. | Electric leakage protection device for pool apparatus, and pool apparatus |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2842833Y (en) * | 2005-09-27 | 2006-11-29 | 孟加顷 | The electronic single-phase earth leakage circuit-breaker |
| CN102364762A (en) * | 2011-08-09 | 2012-02-29 | 刘睿刚 | Leakage protection plug |
| CN202503262U (en) * | 2012-03-21 | 2012-10-24 | 罗萱宁 | Electric leakage protection device |
| CN202564707U (en) * | 2012-03-07 | 2012-11-28 | 佛山市新基德电子厂有限公司 | Electric leakage protection plug |
| CN105006708A (en) * | 2015-07-28 | 2015-10-28 | 深圳市良辉科技有限公司 | Protection-mode-convertible electric leakage protection plug |
| CN205406868U (en) * | 2016-02-19 | 2016-07-27 | 佛山市新基德电子厂有限公司 | Electric leakage protection plug |
-
2016
- 2016-02-19 CN CN201610093618.6A patent/CN105514722A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2842833Y (en) * | 2005-09-27 | 2006-11-29 | 孟加顷 | The electronic single-phase earth leakage circuit-breaker |
| CN102364762A (en) * | 2011-08-09 | 2012-02-29 | 刘睿刚 | Leakage protection plug |
| CN202564707U (en) * | 2012-03-07 | 2012-11-28 | 佛山市新基德电子厂有限公司 | Electric leakage protection plug |
| CN202503262U (en) * | 2012-03-21 | 2012-10-24 | 罗萱宁 | Electric leakage protection device |
| CN105006708A (en) * | 2015-07-28 | 2015-10-28 | 深圳市良辉科技有限公司 | Protection-mode-convertible electric leakage protection plug |
| CN205406868U (en) * | 2016-02-19 | 2016-07-27 | 佛山市新基德电子厂有限公司 | Electric leakage protection plug |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4300742A1 (en) * | 2022-06-28 | 2024-01-03 | Bestway Inflatables & Material Corp. | Electric leakage protection device for pool apparatus, and pool apparatus |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160420 |