CN203521788U - Electric leakage over-current protection socket - Google Patents

Electric leakage over-current protection socket Download PDF

Info

Publication number
CN203521788U
CN203521788U CN201320566110.5U CN201320566110U CN203521788U CN 203521788 U CN203521788 U CN 203521788U CN 201320566110 U CN201320566110 U CN 201320566110U CN 203521788 U CN203521788 U CN 203521788U
Authority
CN
China
Prior art keywords
socket
testing circuit
circuit plate
electric leakage
test
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.)
Active
Application number
CN201320566110.5U
Other languages
Chinese (zh)
Inventor
谭细锋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dongguan Zhaonan Electronic Appliances Technology Co Ltd
Original Assignee
Dongguan Zhaonan Electronic Appliances Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Dongguan Zhaonan Electronic Appliances Technology Co Ltd filed Critical Dongguan Zhaonan Electronic Appliances Technology Co Ltd
Priority to CN201320566110.5U priority Critical patent/CN203521788U/en
Application granted granted Critical
Publication of CN203521788U publication Critical patent/CN203521788U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model discloses an electric leakage over-current protection socket in the circuit components field. The electric leakage over-current protection socket comprises a socket panel and an energizing assembly buckled and fixed under the bottom of the socket panel, a surface of the socket panel is provided with a reset button, a test button and more than one set of jacks, the energizing assembly is formed by a protective housing with an accommodation space, and a detection circuit board, a reset device and a tripping device which are accommodated in the protective housing, and an electric leakage detection IC, an over-current protector, a silicon controlled rectifier, an electromagnetic coil and two sets of mutual inductors are electrically connected on the detection circuit board. Electric leakage current signals can be detected accurately and sensitively when electric leakage happens, precision is largely improved, and ranges of an electric leakage current value and an over-current value can be respectively set according to the need and can be completely ensured to be in a safe range; tripping response time is short at most 0.08S, and personal and property safety can be effectively protected; and the same socket is provided with the plurality of jacks, multi electrical appliances can be enabled to consume electricity independently without mutual interference, and normal use of other circuits cannot be influenced by circuit faults of a signal circuit.

Description

Electric leakage over current protection socket
Technical field
The utility model relates to circuit elements devices field, is specifically related to a kind of socket, particularly electric leakage over current protection socket.
Background technology
Socket has referred to the insertable seat of one or more circuit connections, by it, can insert various wiring, is convenient to connect with other circuit.Supply socket is that the electric equipment of power interface is provided for household electrical appliance, is also in design of residence, to use more electrical accessory, and it and people's life have ten close relationships.Traditional socket is because of a plurality of electrical equipment uses in succession; the general 30MA of earth leakage protective value; if be worth too little; a plurality of electrical appliance leakage current additive values are easy to be greater than protector protection value; can often disconnect, affect normal electricity consumption, but safe leakage current be below 6mA; traditional protection device can not effectively be protected personal safety as well as the property safety, often occurs the residual phenomenon of electrocuting of electricity.Traditional overcurrent relay on-off effect is slow; when the electric current in circuit has just surpassed the rated value of overcurrent relay; the overcurrent relay action that is not triggered; generally; electric current in circuit need to just can make overcurrent relay move much larger than the rated value of overcurrent relay, thus open circuit, because its reaction slow motion; therefore causing after more eventful generation can't open circuit, can not really play a protective role; The tradition short switch reaction time is slow and occur the whole power-off of short trouble, is difficult to find out failure cause.Therefore need a kind of electric leakage, overcurrent, short-circuit protection and man-to-man socket of guarantee electricity consumption can realized to realize safety utilization of electric power.
Utility model content
The purpose of this utility model is; for the deficiencies in the prior art; a kind of socket of realizing electric leakage, short circuit, overcurrent protection is provided; by overcurrent protector, coordinate with trip gear and realize quick open circuit; improve reaction precision; electricity consumption can effectively be identified faulty circuit one to one, facilitates repair and maintenance.
For effectively addressing the above problem, the technical scheme that the utility model is taked is as follows:
The utility model product comprise wall socket, insert and the similar product such as socket.
Electric leakage over current protection socket, comprise socket panel and be fastened at the energising assembly of socket panel bottom, socket panel surface is provided with reset key, test button and more than one group socket, this energising assembly is by the protecting sheathing with spatial accommodation and be contained in the testing circuit plate one of protecting sheathing inside, testing circuit plate two, resetting means and trip gear form, and be provided with middle cover above testing circuit plate, middle cover is between testing circuit plate two and socket panel, testing circuit plate one is arranged in cap surface, testing circuit plate one surface is provided with Test Switchboard, rectifier diode one and dropping resistor, test button bottom is provided with test return spring and for the test conduction sheet metal of this Test Switchboard of conducting, make to test return spring between testing circuit plate one and test button, after pressing test button, test conduction sheet metal contacts with Test Switchboard, after decontroling test button, testing under the resilience force effect of return spring, test conduction sheet metal is separated with Test Switchboard, in cover and be fixed with a pair of copper sheet of socket corresponding with socket, the riveted joint of copper sheet of socket middle-end has a pair of fixed contact, protecting sheathing side to be respectively equipped with input hot terminal and the output zero line terminals with copper sheet of socket conducting, this resetting means comprises reset key, back-moving spring and restoring link, reset key is arranged on the top of restoring link, back-moving spring penetrates restoring link, restoring link down extends to middle cover bottom through middle cover, make back-moving spring between reset key and middle cover, on this testing circuit plate two, be electrically connected with detection of electrical leakage IC, rectifier diode two, resistance, electric capacity, piezo-resistance, overcurrent protector, controllable silicon, solenoid and two groups of instrument transformers, and be provided with for triggering the switch plate of controlled silicon conducting on testing circuit plate two surfaces, make solenoid work, instrument transformer is delivered to detection of electrical leakage IC after for detection of leakage current signal rectifying and wave-filtering and is analyzed, the centre bore of instrument transformer is installed with a pair of input moving plate with resilience force, input moving plate extends to restoring link both sides forward, and there is the moving contact corresponding with fixed contact in the riveted joint of input moving plate end, make moving contact be positioned at fixed contact under, detection of electrical leakage IC, for analyzing and contrast the size criteria of leakage current signal value, is output as low level when leakage current signal value is less than set point 4.0mA, exports high level when leakage current signal value is 5mA-6mA, triggers controlled silicon conducting, controllable silicon is used for controlling solenoid power on/off, makes solenoid obtain electric rear generation magnetic field during controlled silicon conducting, solenoid center is provided with the catch bar of magnetic field force induced action, catch bar is parallel to testing circuit plate two, when solenoid energising produces magnetic field force, catch bar is released forward, dropout sheet advances and makes to thread off sheet and restoring link disengaging, the input moving contact of moving plate and the fixed contact of copper sheet of socket disconnect, and reach earth leakage protective object, overcurrent protector consists of over-current detection coil and Chang Kai tongue tube, often open tongue tube through the centre bore of over-current detection coil, over-current detection coil tandem is in the input hot terminal of main circuit, one end of tongue tube is connected with the input hot terminal of main circuit, after its other end series resistor, is connected with output zero line terminals, described trip gear comprises release and is interspersed in the dropout sheet of position, the release middle part of the side, between dropout sheet and trip gear, return spring is installed, dropout sheet is parallel with testing circuit plate two, the front end surface of dropout sheet is provided with for penetrating the long arc-shaped holes with fastening restoring link, the rear end of dropout sheet is provided with the plate washer for contacting with catch bar, when catch bar is promoted under magnetic field force effect, drive dropout sheet to move in the middle part of the side of release forward forward, and reset under the effect of return spring, in release bottom, be provided with the bimetal leaf contacting with the switch plate on testing circuit plate two surfaces, after bimetal leaf contacts with switch plate, triggering controlled silicon conducting makes solenoid energising produce magnetic field force, the two ends of release are provided with for passive back-up block, back-up block is connected with moving contact, and below back-up block, be provided with the limit spring that prevents that moving contact from contacting with testing circuit plate two, the top center of release is provided with for penetrating the central bore of restoring link, this restoring link bottom is provided with for clamping the snap ring of dropout sheet, restoring link makes the snap ring long arc-shaped holes that links closely from central bore penetrates, in the restoring link process that resilience is risen under the elastic force effect of back-moving spring, after driving moving contact to rise, moving contact is contacted with fixed contact.
When load current is greater than set point or load end short circuit, tongue tube is closed, produce a leakage current that is greater than 6mA, instrument transformer detects leakage current, detection of electrical leakage IC exports high level, controlled silicon conducting, it is separated with dropout sheet that solenoid obtains electric catch bar reach promotion cramp reach connecting rod, and rotor contact is separated with fixed contact, output power-off.More than turn-off current value can be accurate to 0.1A, be less than 0.08S opening time.
As preferably, described overcurrent protector is arranged with outward for holding the insulation crust of over-current detection coil and tongue tube.The flow through electric current of hot-wire coil of employing changes the magnetic field produce and carrys out conducting tongue tube, thereby the safety that realizes circuit disconnects, because the dry reed-pipe structure using is simple, volume is little, closing speed is fast, long working life, and compare with electronic switch, it has again the features such as anti-load shock ability is strong, functional reliability is very high, the opening speed when faults such as short circuit or overcurrent appear in raising circuit because and raising reaction precision, guarantee operator's personal safety.
As preferably, described tongue tube comprises magnetizable reed that two end points places are parallel and for encapsulating the glass tube of reed, is filled with inert gas in glass tube, and two reed end points are provided with contact, and contact is separated and left gap to make two reeds be normal opening structure.
As preferably, two groups of instrument transformers comprise that one group for the live wire-zero line mutual inductor for detection of live wire and zero line leakage current signal, and another group is the zero line-ground wire instrument transformer for detection of zero line and ground wire leakage current signal.
As preferably, described socket panel surface is provided with indicator light, and this indicator light is arranged on testing circuit plate one surface, and when there is electric leakage or overcurrent tripping, indicator light extinguishes, and when socket is normally worked, indicator light is lighted.
Specific works principle of the present utility model is as follows:
A) reseting procedure: press reset key, back-moving spring is compressed, restoring link is pressed down, in the process that restoring link presses down, restoring link penetrates the central bore of release, arrive dropout sheet surface, press down release makes the bimetal leaf of release bottom contact with the switch plate on testing circuit plate surface simultaneously, thereby electric conduction magnetic coil and controllable silicon, solenoid obtains electric generation magnetic field force catch bar and promotes forward, catch bar promotes forward to contact with the plate washer of the sheet of threading off, the sheet that makes to thread off moves forward, now restoring link will penetrate the long arc-shaped holes on dropout sheet surface, unclamp after reset key, restoring link resets, catch bar resets, the sheet of simultaneously threading off resets under the effect of back-moving spring, make the snap ring of the restoring link bottom long arc-shaped holes that links closely, the restoring link reset of rising under the rebound effect power of back-moving spring, restoring link drives release toward rising simultaneously, the back-up block at release two ends also drives moving contact up to rise simultaneously, moving contact and fixed contact are combined closely, it is bright that copper sheet of socket obtains electric indicator light.
B) test process: press test button, test conduction sheet metal is contacted with Test Switchboard, thereby produce a leakage current that is greater than 6mA, solenoid obtains electric generation magnetic field force catch bar and promotes forward, and catch bar promotes forward to contact with the plate washer of the sheet of threading off, and the sheet that makes to thread off moves forward, now thread off sheet and restoring link departs from, the restoring link reset of rising under the rebound effect power of back-moving spring, moving contact is return down, disconnects with fixed contact.
C) when live wire and zero line have electric leakage, 1000:1 live wire-zero line mutual inductor detects leakage current signal and delivers to detection of electrical leakage IC after by rectifying and wave-filtering and process, when leakage current detection of electrical leakage IC output high level when being greater than 4mA-6mA, high level signal is by after controlled silicon conducting, solenoid is obtained electric, solenoid obtains electric generation magnetic field force catch bar and promotes forward, catch bar promotes forward to contact with the plate washer of the sheet of threading off, the sheet that makes to thread off moves forward, snap ring and long arc-shaped holes depart from, make restoring link and dropout sheet complete dropout, under the resilience force of input moving plate, inputting moving plate drives moving contact toward declining, make moving contact separated with fixed contact, copper sheet of socket dead electricity, indicator light goes out, play the protection person and property safety.
D) when the electric leakage of zero line and ground wire, 200:1 zero line-ground wire instrument transformer detects leakage current signal and delivers to detection of electrical leakage IC after by rectifying and wave-filtering and process, when leakage current detection of electrical leakage IC output high level when being greater than 4mA-6mA, high level signal is by after controlled silicon conducting, solenoid is obtained electric, solenoid obtains electric generation magnetic field force catch bar and promotes forward, catch bar promotes forward to contact with the plate washer of the sheet of threading off, the sheet that makes to thread off moves forward, snap ring and long arc-shaped holes depart from, make restoring link and dropout sheet complete dropout, under the resilience force of input moving plate, inputting moving plate drives moving contact toward declining, make moving contact separated with fixed contact, copper sheet of socket dead electricity, indicator light goes out, play the protection person and property safety.Wherein, 4mA electric current is the electric current of harmful to human safety not, detection of electrical leakage IC output low level, and controllable silicon not electric conduction magnetic coil must not electricity, and catch bar is failure to actuate, so can not make restoring link and cramp dropout.
E) short circuit or while there is overcurrent, the magnetic field that the current coil of overcurrent protector produces when load current exceeds rated current is enough by dry spring adhesive open in usual, one end of tongue tube is connected with the terminals of reaching the standard grade with the fiery 6mA of input, after its other end serial connection 15k Ω resistance, be connected to output zero line terminals, the leakage current that now will produce, when detecting leakage current, exports detection of electrical leakage IC high level, high level signal is by after controlled silicon conducting, solenoid obtains electric, solenoid obtains electric generation magnetic field force catch bar and promotes forward, catch bar promotes forward to contact with the plate washer of the sheet of threading off, the sheet that makes to thread off moves forward, snap ring and long arc-shaped holes depart from, make restoring link and dropout sheet complete dropout, under the resilience force of input moving plate, inputting moving plate drives moving contact toward declining, make moving contact separated with fixed contact, copper sheet of socket dead electricity, indicator light goes out, play the protection person and property safety.
The electric leakage over current protection socket that the utility model provides mainly contains following advantage:
1. while there is electric leakage, detect leakage current signal accurately sensitive, precision improves greatly, can the value range of leakage current and overcurrent value be set respectively as required, can guarantee within safe range completely;
2. reaction time of threading off is fast, is no more than at most 0.08S, effectively protects personal safety as well as the property safety;
3, solved way circuit arrange electric leakage anti-stream and protective current value excessive; can not protect the problem of the safety of each branch road; solved leakage current value and current value simultaneously and too small each branch road leakage current and current summation are set have been easy to again surpass the leakage current value that arranges and the problem of protective current value, impact is normal uses existing contradictory problems.Realized protection one to one.
4. on same socket, there are a plurality of sockets, meet the electricity consumption of many electrical equipment independence, non-interference, the fault of single line does not affect the normal use of other circuit;
5. electricity consumption can effectively be identified faulty circuit and facilitates repair and maintenance one to one, not only easy to use and abort situation is very clear.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of the utility model embodiment;
Fig. 2 is the overall structure schematic diagram of another angle of the utility model embodiment;
Fig. 3 is the internal structure schematic diagram of the utility model embodiment;
Fig. 4 is the structural representation of the utility model embodiment trip gear;
In figure, (1) socket panel, (2) energising assembly; (3) reset key; (4) socket, (5) testing circuit plate two, (6) middle cover; (7) restoring link; (8) copper sheet of socket, (9) fixed contact, (10) input hot terminal; (11) output zero line terminals; (12) overcurrent protector, (13) solenoid, (14) instrument transformer; (15) input moving plate; (16) moving contact, (17) over-current detection coil, (18) tongue tube; (19) indicator light, (20) test button.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is described in further detail.
The present embodiment; with reference to Fig. 1~Fig. 4; electric leakage over current protection socket; comprise socket panel 1 and be fastened at the energising assembly 2 of socket panel 1 bottom; socket panel 1 surface is provided with reset key 3, test button 20 and more than one group socket 4, and described socket panel surface is provided with indicator light 19, and this indicator light 19 is arranged on testing circuit plate one surface; when there is electric leakage or overcurrent tripping, indicator light extinguishes, and when socket is normally worked, indicator light is lighted.This energising assembly 2 is by the protecting sheathing with spatial accommodation and be contained in the testing circuit plate one of protecting sheathing inside, testing circuit plate 25, resetting means and trip gear form, and above testing circuit plate, be provided with middle cover 6, middle cover 6 is between testing circuit plate 25 and socket panel 1, testing circuit plate one is positioned at middle cover 6 surfaces, testing circuit plate one surface is provided with Test Switchboard, rectifier diode one and dropping resistor, test button 20 bottoms are provided with test return spring and for the test conduction sheet metal of this Test Switchboard of conducting, make to test return spring between testing circuit plate one and test button 20, pressing the rear test conduction sheet metal of test button 20 contacts with Test Switchboard, after decontroling test button 20, testing under the resilience force effect of return spring, test conduction sheet metal is separated with Test Switchboard, on middle cover 6, be fixed with a pair of copper sheet of socket 8 corresponding with socket 4, copper sheet of socket 8 middle-ends riveted joints have a pair of fixed contact 9, protecting sheathing side to be respectively equipped with input hot terminal 10 and the output zero line terminals 11 with copper sheet of socket 8 conductings, this resetting means comprises reset key 3, back-moving spring and restoring link 7, reset key 3 is arranged on the top of restoring link 7, back-moving spring penetrates restoring link 7, and restoring link 7 down extends to middle cover 6 bottoms through middle cover 6, makes back-moving spring between reset key 3 and middle cover 6.
On this testing circuit plate 25, be electrically connected with detection of electrical leakage IC, rectifier diode two, resistance, electric capacity, piezo-resistance, overcurrent protector 12, controllable silicon, solenoid 13 and two groups of instrument transformers 14, and be provided with for triggering the switch plate of controlled silicon conducting on testing circuit plate 25 surfaces, make solenoid 13 work, instrument transformer 14 is delivered to detection of electrical leakage IC after for detection of leakage current signal rectifying and wave-filtering and is analyzed, the centre bore of instrument transformer 14 is installed with a pair of input moving plate 15 with resilience force, input moving plate 15 extends to restoring link 7 both sides forward, and there is the moving contact corresponding with fixed contact 9 16 in the 15 end riveted joints of input moving plate, make moving contact 16 be positioned at fixed contact under, detection of electrical leakage IC is used for analyzing and contrast the size criteria of leakage current signal value, and exports high level, controllable silicon makes solenoid 13 obtain electric rear generation magnetic field for electric conduction magnetic coil 13, solenoid 13 centers are provided with the catch bar of magnetic field force induced action, and catch bar is parallel to testing circuit plate 25, when solenoid 13 energisings produce magnetic field force, catch bar are released forward, overcurrent protector 12 consists of over-current detection coil 17 and Chang Kai tongue tube 18, often open tongue tube 18 through the centre bore of over-current detection coil 17, over-current detection coil 17 is serially connected with the input hot terminal 10 of main circuit, one end of tongue tube 18 is connected with the input hot terminal 10 of main circuit, after its other end series resistor, is connected with output zero line terminals 11, described trip gear comprises release and is interspersed in the dropout sheet of position, the release middle part of the side, between dropout sheet and trip gear, return spring is installed, dropout sheet is parallel with testing circuit plate 25, the front end surface of dropout sheet is provided with for penetrating the long arc-shaped holes with fastening restoring link 7, the rear end of dropout sheet is provided with the plate washer for contacting with catch bar, when catch bar is promoted under magnetic field force effect, drive dropout sheet to move in the middle part of the side of release forward forward, and reset under the effect of return spring, in release bottom, be provided with the bimetal leaf contacting with the switch plate on testing circuit plate 25 surfaces, bimetal leaf makes solenoid 13 conductings produce magnetic field force after contacting with switch plate, the two ends of release are provided with for passive back-up block, back-up block is connected with moving contact 16, and below back-up block, be provided with the limit spring that prevents that moving contact 16 from contacting with testing circuit plate 25, the top center of release is provided with for penetrating the central bore of restoring link 7, these restoring link 7 bottoms are provided with for clamping the snap ring of dropout sheet, restoring link 7 makes the snap ring long arc-shaped holes that links closely from central bore penetrates, in restoring link 7 process that resilience is risen under the elastic force effect of back-moving spring, after driving moving contact 16 to rise, moving contact 16 is contacted with fixed contact.
Above content is in conjunction with concrete preferred embodiment further detailed description of the utility model, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, without departing from the concept of the premise utility, can also make some simple deduction or replace, all should be considered as protection range of the present utility model.

Claims (5)

1. electric leakage over current is protected socket, comprise socket panel and be fastened at the energising assembly of socket panel bottom, socket panel surface is provided with reset key, test button and more than one group socket, this energising assembly is by the protecting sheathing with spatial accommodation and be contained in the testing circuit plate one of protecting sheathing inside, testing circuit plate two, resetting means and trip gear form, and be provided with middle cover above testing circuit plate, middle cover is between testing circuit plate two and socket panel, testing circuit plate one is arranged in cap surface, testing circuit plate one surface is provided with Test Switchboard, rectifier diode one and dropping resistor, test button bottom is provided with test return spring and for the test conduction sheet metal of this Test Switchboard of conducting, make to test return spring between testing circuit plate one and test button, after pressing test button, test conduction sheet metal contacts with Test Switchboard, after decontroling test button, testing under the resilience force effect of return spring, test conduction sheet metal is separated with Test Switchboard, in cover and be fixed with a pair of copper sheet of socket corresponding with socket, the riveted joint of copper sheet of socket middle-end has a pair of fixed contact, protecting sheathing side to be respectively equipped with input hot terminal and the output zero line terminals with copper sheet of socket conducting, this resetting means comprises reset key, back-moving spring and restoring link, reset key is arranged on the top of restoring link, back-moving spring penetrates restoring link, restoring link down extends to middle cover bottom through middle cover, make back-moving spring between reset key and middle cover, it is characterized in that: on this testing circuit plate two, be electrically connected with detection of electrical leakage IC, rectifier diode two, resistance, electric capacity, piezo-resistance, overcurrent protector, controllable silicon, solenoid and two groups of instrument transformers, and be provided with for triggering the switch plate of controlled silicon conducting on testing circuit plate two surfaces, make solenoid work, instrument transformer is delivered to detection of electrical leakage IC after for detection of leakage current signal rectifying and wave-filtering and is analyzed, the centre bore of instrument transformer is installed with a pair of input moving plate with resilience force, input moving plate extends to restoring link both sides forward, and there is the moving contact corresponding with fixed contact in the riveted joint of input moving plate end, make moving contact be positioned at fixed contact under, detection of electrical leakage IC, for analyzing and contrast the size criteria of leakage current signal value, is output as low level when leakage current signal value is less than set point 4.0mA, exports high level when leakage current signal value is 5mA-6mA, triggers controlled silicon conducting, controllable silicon is used for controlling solenoid power on/off, makes solenoid obtain electric rear generation magnetic field during controlled silicon conducting, solenoid center is provided with the catch bar of magnetic field force induced action, and catch bar is parallel to testing circuit plate two, when solenoid energising produces magnetic field force, catch bar is released forward, overcurrent protector consists of over-current detection coil and Chang Kai tongue tube, often open tongue tube through the centre bore of over-current detection coil, over-current detection coil tandem is in the input hot terminal of main circuit, one end of tongue tube is connected with the input hot terminal of main circuit, after its other end series resistor, is connected with output zero line terminals, described trip gear comprises release and is interspersed in the dropout sheet of position, the release middle part of the side, between dropout sheet and trip gear, return spring is installed, dropout sheet is parallel with testing circuit plate two, the front end surface of dropout sheet is provided with for penetrating the long arc-shaped holes with fastening restoring link, the rear end of dropout sheet is provided with the plate washer for contacting with catch bar, when catch bar is promoted under magnetic field force effect, drive dropout sheet to move in the middle part of the side of release forward forward, and reset under the effect of return spring, in release bottom, be provided with the bimetal leaf contacting with the switch plate on testing circuit plate two surfaces, after bimetal leaf contacts with switch plate, triggering controlled silicon conducting makes solenoid energising produce magnetic field force, the two ends of release are provided with for passive back-up block, back-up block is connected with moving contact, and below back-up block, be provided with the limit spring that prevents that moving contact from contacting with testing circuit plate two, the top center of release is provided with for penetrating the central bore of restoring link, this restoring link bottom is provided with for clamping the snap ring of dropout sheet, restoring link makes the snap ring long arc-shaped holes that links closely from central bore penetrates, in the restoring link process that resilience is risen under the elastic force effect of back-moving spring, after driving moving contact to rise, moving contact is contacted with fixed contact.
2. electric leakage over current protection socket according to claim 1, is characterized in that: described overcurrent protector is arranged with outward for holding the insulation crust of over-current detection coil and tongue tube.
3. electric leakage over current according to claim 2 is protected socket; it is characterized in that: described tongue tube comprises magnetizable reed that two end points places are parallel and for encapsulating the glass tube of reed; in glass tube, be filled with inert gas; two reed end points are provided with contact, and contact is separated and to be left gap to make two reeds be normal opening structure.
4. according to the electric leakage over current protection socket described in claim 1~3 any one; it is characterized in that: two groups of instrument transformers comprise that one group for the live wire-zero line mutual inductor for detection of live wire and zero line leakage current signal, and another group is the zero line-ground wire instrument transformer for detection of zero line and ground wire leakage current signal.
5. according to the electric leakage over current protection socket described in claim 1~3 any one, it is characterized in that: described socket panel surface is provided with indicator light, this indicator light is arranged on testing circuit plate one surface, and when there is electric leakage or overcurrent tripping, indicator light extinguishes.
CN201320566110.5U 2013-09-12 2013-09-12 Electric leakage over-current protection socket Active CN203521788U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320566110.5U CN203521788U (en) 2013-09-12 2013-09-12 Electric leakage over-current protection socket

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320566110.5U CN203521788U (en) 2013-09-12 2013-09-12 Electric leakage over-current protection socket

Publications (1)

Publication Number Publication Date
CN203521788U true CN203521788U (en) 2014-04-02

Family

ID=50380664

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320566110.5U Active CN203521788U (en) 2013-09-12 2013-09-12 Electric leakage over-current protection socket

Country Status (1)

Country Link
CN (1) CN203521788U (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104538955A (en) * 2014-12-23 2015-04-22 黄华道 Power supply device with overcurrent protection function
CN105137783A (en) * 2015-07-31 2015-12-09 陈泽 Intelligent socket and smart home system
CN105762553A (en) * 2016-03-30 2016-07-13 宁波高新区夏远科技有限公司 Electric spark-proof patch board
CN105931877A (en) * 2016-05-03 2016-09-07 盐城师范学院 Bimetallic strip cutoff and carrier wave remote sensing type socket panel
CN106207657A (en) * 2016-08-31 2016-12-07 天津市鸿远电气股份有限公司 Five hole Overloading proof sockets
CN106654745A (en) * 2017-01-06 2017-05-10 深圳市南岛机电有限公司 Wall socket with electric leakage protection function, USB jack and capable of rapidly charging
CN113131293A (en) * 2021-04-20 2021-07-16 温州市龙洋电器有限公司 American electric leakage protection socket
CN113178755A (en) * 2021-05-11 2021-07-27 南京智浩任机械设备有限公司 Hardware power distribution automatic control overload protection connecting equipment

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104538955A (en) * 2014-12-23 2015-04-22 黄华道 Power supply device with overcurrent protection function
CN105137783A (en) * 2015-07-31 2015-12-09 陈泽 Intelligent socket and smart home system
CN105762553A (en) * 2016-03-30 2016-07-13 宁波高新区夏远科技有限公司 Electric spark-proof patch board
CN105931877A (en) * 2016-05-03 2016-09-07 盐城师范学院 Bimetallic strip cutoff and carrier wave remote sensing type socket panel
CN106207657A (en) * 2016-08-31 2016-12-07 天津市鸿远电气股份有限公司 Five hole Overloading proof sockets
CN106654745A (en) * 2017-01-06 2017-05-10 深圳市南岛机电有限公司 Wall socket with electric leakage protection function, USB jack and capable of rapidly charging
CN113131293A (en) * 2021-04-20 2021-07-16 温州市龙洋电器有限公司 American electric leakage protection socket
CN113178755A (en) * 2021-05-11 2021-07-27 南京智浩任机械设备有限公司 Hardware power distribution automatic control overload protection connecting equipment

Similar Documents

Publication Publication Date Title
CN203521788U (en) Electric leakage over-current protection socket
CN102780205B (en) Electric leakage detecting protection circuit
CN103219702B (en) It can electric leakage detection protection circuit capable of performing timed self-detection
CN201185273Y (en) Power-supply plug with cable earth leakage protection function
CN201369470Y (en) Earth-leakage protecting plug
CN101847802B (en) Electric leakage protection plug
CN102832591A (en) Electricity leakage detecting protection circuit with function of lightning impulse resistance
CN203166238U (en) Socket for realizing leakage protection
CN201194327Y (en) Leakage detecting protection circuit
CN202957575U (en) Electric leakage breaker
CN205753342U (en) Earth leakage protective device
CN102420414A (en) High-sensitivity leakage current detection circuit breaker
CN201750009U (en) Household appliance leakage protection socket
CN104993332A (en) Miniature electric leakage protection socket
CN204992157U (en) Miniature earth leakage protection socket
CN100501897C (en) Flameproof protection switch
CN100590937C (en) Multifunctional fireproofing over loading protecting socket
CN101895088A (en) Leakage detection protection circuit
CN201422009Y (en) Leakage detection and protection circuit
CN201188535Y (en) Super lightning protection mobile socket
CN201466675U (en) Leakage detection protection circuit
CN100557750C (en) Small fireproof breaker
CN101237138A (en) Super thunder-prevention protection mobile jack
CN201838984U (en) Electric wiring protection device
CN203276459U (en) Electrical fire monitoring detector having overvoltage under-voltage detecting and protective functions

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
PP01 Preservation of patent right
PP01 Preservation of patent right

Effective date of registration: 20190909

Granted publication date: 20140402