CN105591248A - Wall electric leakage protection socket - Google Patents
Wall electric leakage protection socket Download PDFInfo
- Publication number
- CN105591248A CN105591248A CN201610091839.XA CN201610091839A CN105591248A CN 105591248 A CN105591248 A CN 105591248A CN 201610091839 A CN201610091839 A CN 201610091839A CN 105591248 A CN105591248 A CN 105591248A
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- China
- Prior art keywords
- contact
- movable core
- free end
- movable
- front panel
- 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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Links
- 238000009434 installation Methods 0.000 claims abstract description 11
- 238000001514 detection method Methods 0.000 claims abstract description 10
- 230000003068 static effect Effects 0.000 claims abstract description 10
- 230000001681 protective effect Effects 0.000 claims description 21
- 238000012360 testing method Methods 0.000 claims description 15
- 235000014676 Phragmites communis Nutrition 0.000 claims description 10
- 230000000694 effects Effects 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 210000002435 tendon Anatomy 0.000 claims description 4
- 238000005452 bending Methods 0.000 claims description 2
- 239000004020 conductor Substances 0.000 claims description 2
- UAJUXJSXCLUTNU-UHFFFAOYSA-N pranlukast Chemical compound C=1C=C(OCCCCC=2C=CC=CC=2)C=CC=1C(=O)NC(C=1)=CC=C(C(C=2)=O)C=1OC=2C=1N=NNN=1 UAJUXJSXCLUTNU-UHFFFAOYSA-N 0.000 claims 1
- 229960004583 pranlukast Drugs 0.000 claims 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 3
- 230000000712 assembly Effects 0.000 abstract 4
- 238000000429 assembly Methods 0.000 abstract 4
- 230000005611 electricity Effects 0.000 description 5
- 229920003023 plastic Polymers 0.000 description 5
- 239000004033 plastic Substances 0.000 description 5
- 239000000758 substrate Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000006837 decompression Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 101150026109 INSR gene Proteins 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 239000013536 elastomeric material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
The invention relates to a wall electric leakage protection socket comprising a box body, an installation front panel, a front panel, and a protection cover. An electric leakage electromagnetic motion mechanism and an electric leakage detection circuit are disposed in the box body, and the installation front panel is disposed on the box body in a covered manner, and is disposed on the back surface of the front panel. The electric leakage electromagnetic motion mechanism comprises a pair of dynamic contact assemblies, a pair of static contact assemblies, an electromagnetic assembly, and a reset button. The electromagnetic assembly comprises an electromagnetic coil and a movable iron core. The reset button is provided with a linkage sheet, on end of which is connected with the reset button. The linkage sheet is provided with a horizontal protrusion, which is cooperated with the connecting members of the dynamic contact assemblies. Under the action of the dynamic contact assemblies and the elastic reset members of the movable iron core, the reset state can be kept after the power off, and the wall electric leakage protection socket is suitable for being used in different occasions.
Description
Technical field
The present invention relates to a kind of supply socket being arranged on wall, specifically a kind of wall earth leakage protective socket.
Background technology
Wall earth leakage protective socket not only can provide power supply for various electrical equipment or equipment, and at human electric shock or electrical equipmentDuring with equipment leakage, can play and play a protective role, therefore application is very extensive.
Wall earth leakage protective socket generally includes a box body, front panel, front panel and protective cover is installed, in described box bodyBe provided with electric leakage electromagnetism actuating mechanism and electric-leakage detection circuit, described installation front panel covers on box body and is arranged on backboard aboveFace, electric leakage electromagnetism actuating mechanism generally include moving contact component, static contact component, solenoid, movable core and reset byButton, is provided with dropout link gear between described moving contact component and movable core, described dropout link gear is at SRUnder homing action effect, drive the stationary contact closure of movable contact and the static contact component of moving contact component, when occur human electric shock orWhen equipment leakage situation, electric-leakage detection circuit output control signal, solenoid produces electromagnetic force and drives movable core, active ironCore separates the movable contact of moving contact component and the stationary contact of static contact component by dropout link gear, cuts off the electricity supply and reaches guarantorThe object of protecting. But due to the requirement of o-volt protection, present electric leakage electromagnetism actuating mechanism after power supply decompression or power-off, evenPower supply recovers normally again, and movable contact still needs to keep separating with stationary contact, needs manually again to press SR, could again connectEnergize, drops into normal operating conditions. But such RCCB can not be suitable for some special occasions and use, as doneIn earth leakage protective socket for refrigerator power, use. In addition, due to existing wall earth leakage protective socket fault of construction, Bu Nengfang, there is potential safety hazard in the water droplet only flowing down along wall.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art and provide a kind of after power supply decompression or power-off, power supply weightNew recovery when normal, without manually again pressing can the restore electricity electric leakage electromagnetism actuating mechanism of power supply of SR.
To achieve these goals, the present invention adopts following scheme: a kind of wall earth leakage protective socket, comprises a boxBody, installation front panel, front panel and protective cover, be provided with electric leakage electromagnetism actuating mechanism and electric-leakage detection circuit, institute in described box bodyState and front panel is installed is covered on box body and be arranged on the front panel back side, electric leakage electromagnetism actuating mechanism comprise a pair of moving contact component,A pair of static contact component, electromagnetic assembly and SR, described electromagnetic assembly comprises solenoid and movable core, described movingBetween contact assembly and movable core, be provided with dropout link gear, described dropout link gear is done at the homing action of SRBy the stationary contact closure of movable contact and the static contact component of lower driving moving contact component, it is characterized in that: described solenoid is solidFixed setting, described movable core is axially slidably disposed in solenoid centre bore, and movable core front end exposes, electromagnetism groupPart is also provided with elastic reset part, and described elastic reset part makes described movable core have outside elastic force; Described a pair of movable contactAssembly is separately positioned on solenoid both sides, and moving contact component comprises metallic elastic reed and movable contact, described metallic elasticReed one end is fixedly installed, and the other end is free end, and described free end is near movable core exposed junction, and described movable contact is fixedly establishedPut on free end, it is relative with movable contact that described stationary contact is arranged on free end below, and the elasticity of described metallic elastic reed makesDescribed movable contact has the elastic force separating with stationary contact, and between described a pair of free end, be provided with connector and be connected, described inSR is arranged on movable core front end one side, presses direction and movable core glide direction is perpendicular, described SRBe provided with linkage piece, linkage piece one end is connected with SR, and described linkage piece is provided with level and protrudes, and the linkage piece other end isFree end, and the setting of close neighbour's connector, the protrusion direction that level is protruded is consistent with the elastic force direction of described elastic reset part, instituteStating linkage piece free end and movable core is connected and forms described dropout link gear in movable core glide direction.
Electric leakage electromagnetism actuating mechanism of the present invention is protruded and being connected in moving contact component because linkage piece is provided with levelPart matches, and under the elastic reset part effect in moving contact component and movable core, after power-off, reset mode still can keep, suitableClose different applications.
Below in conjunction with the drawings and specific embodiments, the present invention is further described.
Brief description of the drawings
Fig. 1 is specific embodiment of the invention closed condition perspective view;
Fig. 2 is specific embodiment of the invention open mode perspective view;
Fig. 3 is specific embodiment of the invention decomposition texture schematic diagram;
Fig. 4 is specific embodiment of the invention box body internal structure schematic diagram;
Fig. 5 is the present invention's electromagnetism actuating mechanism specific embodiment front view that leaks electricity;
Fig. 6 is accompanying drawing 5A-A structure cutaway view;
Fig. 7 is the present invention's electromagnetism actuating mechanism specific embodiment perspective view one of leaking electricity;
Fig. 8 is the present invention's electromagnetism actuating mechanism specific embodiment perspective view two of leaking electricity.
Detailed description of the invention
As Figure 1-3, wall earth leakage protective socket, comprises a box body 1, installation front panel 2, front panel 3 and protectionLid 4, is provided with electric leakage electromagnetism actuating mechanism and electric-leakage detection circuit in described box body 1, described installation front panel lid 2 is on box body 1And be arranged on front panel 3 back sides. Box body 1, installation front panel 2, front panel 3 and protective cover 4 are made of plastics, the action of electric leakage electromagnetismMechanism comprises a pair of moving contact component 5, a pair of static contact component 6, electromagnetic assembly and SR 7, described electromagnetic assembly bagDraw together solenoid 8 and movable core 9, between described moving contact component 5 and movable core 9, be provided with dropout link gear, described de-Button link gear drives the movable contact 501 and static contact component 6 of moving contact component 5 under the homing action effect of SR 7Stationary contact 601 closures. Described electromagnetic assembly is arranged in a plastic stent 10, described a pair of moving contact component 5, a pair of quietContact assembly 6, plastic stent 10 and SR 7 etc. are installed on a substrate 11 together, as shown in Fig. 5-8, and described plasticsSupport 10 and solenoid 8 are fixedly installed on the middle part of substrate 11 one sides, and described movable core 9 is axially slidably disposed on electricityIn magnetic coil 8 centre bores, solenoid 8 centre bore axis are parallel with substrate 11, and movable core 9 front ends expose, and electromagnetic assembly alsoBe provided with elastic reset part 12, described elastic reset part 12 makes described movable core 9 have outside elastic force, this specific embodimentDescribed in elastic reset part 12 select turriform Compress Spring, Compress Spring is set on the front end that movable core 9 exposes, compression bulletSpring one end is against on plastic stent 10 sidewalls, and the other end is connected with movable core 9 front ends; Described a pair of moving contact component 5 respectivelyBe arranged on solenoid 8 both sides, moving contact component 5 comprises metallic elastic reed 502 and movable contact 501, described metallic elastic springSheet 502 one end are fixedly installed, and the other end is free end, and described free end is near the exposed junction of movable core 9, described movable contact501 are fixedly installed on free end, and it is relative with movable contact 501 that described stationary contact 601 is arranged on free end below, described metal elasticThe elasticity of property reed 502 makes described movable contact 501 have the elastic force separating with stationary contact 601, between described a pair of free endBe provided with the connector 13 that insulating materials makes and be connected, described SR 7 is arranged on the another side of substrate 11 and in workMoving iron core 9 front end one sides, press direction and movable core 9 glide directions are perpendicular, in described SR 7, are also provided with reset bulletSpring 14, described back-moving spring 14 makes SR 7 have the upwards elastic force of (with pressing opposite direction), and described reset is pressedButton 7 is provided with linkage piece 15, and linkage piece 15 one end are connected with SR 7, and described linkage piece 15 is provided with level and protrudes 16, connectionMoving plate 15 other ends are free end, and substrate 11 is provided with perforate, and the free end of linkage piece 15 passes perforate to electromagnetic assembly one sideAnd close neighbour's connector 13 arranges, it is consistent with the elastic force direction of described elastic reset part 12 that level is protruded 16 protrusion direction,In specific embodiment, the free end of linkage piece 15 is the side near electromagnetic assembly in connector 13, described elastic reset part 12Elastic force direction towards connector 13, described linkage piece 15 free ends and movable core 9 are in movable core 9 glide directions interlocksConnect and compose described dropout link gear. Described linkage piece 15 is preferably made up of elastic sheet metal, and described linkage piece 15 is rectangularShape, the bending of right angle, middle part is converted into " ㄣ " shape for twice, and kink forms described level and protrudes 16, and described movable core 9 front ends are provided withRadial perforation 17, the free end gap of described linkage piece 15 is through in the radial perforation 17 of described movable core 9 front ends and forms instituteState and be connected. For large electric current electric leakage electromagnetism actuating mechanism, metallic elastic reed 502 needs larger thickness, makes elasticityDie down, therefore, in order to be suitable for large electric current, described connector 13 belows are preferably provided with elastic component and form moving contact return unit, described inMoving contact return unit makes moving contact have the elastic force separating with stationary contact 601.
Described box body 1 shape and size can design as the case may be, in this specific embodiment, as shown in Figure 3,4, box body1 is approximate rectangular, and described electric leakage electromagnetism actuating mechanism and electric-leakage detection circuit are arranged on a circuit board, circuit board conduct simultaneouslySubstrate 11, circuit board is roughly rectangle, one end is provided with breach, SR 7 is through described breach, make described SR 7 withThe both sides of electromagnetic assembly in circuit board, this spline structure is compacter, is conducive to reduced volume. In the inner chamber of described box body 1, establishHave some columns 19, the position distribution of described some columns 19 and circuit board shape match, and column 19 numbers should be no less than threeIndividual, because circuit board is rectangle, in this specific embodiment, every one side of corresponding circuits plate is provided with two columns 19, column 19The side being affixed with circuit board is provided with highly consistent convex tendon 20, the top forming circuit plate saddle of convex tendon 20, described circuit boardOn circuit board saddle between the described some columns 19 that are placed in, be provided with a side of electromagnetic assembly down, the bottom of box body 1 inner chamberAlso be provided with three cavitys, be provided with quick-connect terminal in cavity, box body 1 correspondence position is provided with wiring hole. In the inner chamber of box body 1, go backBe provided with fixed support 21, described fixed support 21 is made of plastics, described fixed support 21 have two base oneself upon portion and acrossTwo crossbeam portions of basing oneself upon between portion, the crossbeam portion of described fixed support 21 is crossed on circuit board top, and two portions of basing oneself upon are respectivelyIn the both sides of electromagnetic assembly, in crossbeam portion, the position corresponding with receptacle sockets is provided with socket electric-conductor. For the ease of inspectionWhether wall earth leakage protective socket is normal, and described electric-leakage detection circuit is also provided with test contact and testing button 18, test contactBe made up of break and movable contact spring 22, described break and movable contact spring 22 are arranged on circuit board on a side of front panel 3,Described testing button 18 is arranged on fixed support 21. Described movable contact spring 22 is made up of sheet metal, preferred whippy phosphor-copperSheet is made strip, and one end is fixed, and the other end is free end, and free end is in break top, and described testing button 18 comprises oneIndividual shaft-like pressing lever portion and extend to the press section of free end top from pressing lever portion one side, described pressing lever subordinate holds axiallyBe slidably disposed on fixed support 21, on circuit board, the position adjacent with described free end is provided with through hole formation guide hole23, the press section of described testing button 18 is provided with extended guide part and described guide hole 23 matched in clearance, this specific embodimentIn, position corresponding with described free end both sides on circuit board is equipped with guide hole 23, and establish the press section of described testing button 18There is a pair of extended guide part to coordinate with described guide hole 23, testing button 18 is worked more reliable. Before described installationPlate lid 2 is on box body 1 and be arranged on front panel 3 back sides, and wear the pressing lever portion of described testing button 18 and the upper end of SR 7Cross installation front panel 2 and front panel 3.
In order further to improve water resistance, avoid the water droplet flowing down along wall to enter socket inside, eliminate safe hidden trouble,The corresponding outer annular seal groove that is arranged with a circle sealing of front panel lid 2 of installing in described front panel 3 back sides, in described annular seal grooveBe provided with sealing ring 24, sealing ring 24 adopts elastomeric material to make, and it is of living in that described sealing ring 24 slightly protrudes from described front panel 3 back sidesPlane, can be close to metope when installation, and water resistance is better.
The operation principle of this wall earth leakage protective socket is as follows:
Before reset when (trip status), described SR 7 makes linkage piece 15 under the elastic force effect of back-moving spring 14High initial position, now the level at described linkage piece 15 middle parts is protruded 16 tops in connector 13, described a pair of movingMetallic elastic reed 502 elasticity of contact assembly 5 separate described movable contact 501 downwards with stationary contact 601; When reset, pressSR 7, linkage piece 15 is descending, and the level at described linkage piece 15 middle part under the effect of self elastic force is protruded 16 in connectingThe below of fitting 13, after the pressing force removing on SR 7, return upwards under the elastic force effect of back-moving spring 14,Moving linkage piece 15 is up, and now, it is up until movable contact together that 16 of the level protrusions at linkage piece 15 middle parts catch on connector 13501 closures that contact with stationary contact 601, and keep always; In the time there is electric leakage or electric shock situation, the electromagnetic wire in electromagnetic assemblyCircle 8 obtains electric, and movable core 9 bounces back, and pulls the free end of linkage piece 15, makes level protrude 16 and departs from connectors 13, moving contactAssembly 5 movable contact 501 under metallic elastic reed 502 elastic reactions separates with stationary contact 601 downwards, completes the protection of threading off movingDo.
Claims (6)
1. a wall earth leakage protective socket, comprises a box body, front panel, front panel and protective cover is installed, in described box bodyBe provided with electric leakage electromagnetism actuating mechanism and electric-leakage detection circuit, described installation front panel covers on box body and is arranged on backboard aboveFace, electric leakage electromagnetism actuating mechanism comprises a pair of moving contact component, a pair of static contact component, electromagnetic assembly and SR, instituteState electromagnetic assembly and comprise solenoid and movable core, between described moving contact component and movable core, be provided with dropout gearStructure, described dropout link gear drives movable contact and the static contact group of moving contact component under the homing action effect of SRThe stationary contact closure of part, is characterized in that: described solenoid is fixedly installed, and described movable core is axially slidably disposed onIn solenoid centre bore, movable core front end exposes, and electromagnetic assembly is also provided with elastic reset part, and described elastic reset part makes instituteState movable core and there is outside elastic force; Described a pair of moving contact component is separately positioned on solenoid both sides, moving contact groupPart comprises metallic elastic reed and movable contact, and described metallic elastic reed one end is fixedly installed, and the other end is free end, described fromBy end, near movable core exposed junction, described movable contact is fixedly installed on free end, and described stationary contact is arranged under free endSide is relative with movable contact, and the elasticity of described metallic elastic reed makes described movable contact have the elastic force separating with stationary contact, instituteState and between a pair of free end, be provided with connector and be connected, described SR is arranged on movable core front end one side, the side of pressingTo perpendicular with movable core glide direction, described SR is provided with linkage piece, and linkage piece one end is connected with SR,Described linkage piece is provided with level and protrudes, and the linkage piece other end is free end, and the setting of close neighbour's connector, the protrusion that level is protrudedDirection is consistent with the elastic force direction of described elastic reset part, and described linkage piece free end and movable core slide at movable coreDirection is connected and forms described dropout link gear.
2. wall earth leakage protective socket according to claim 1, is characterized in that: described linkage piece is by elastic sheet metal systemBecome, described linkage piece is strip, and the bending of right angle, middle part is converted into " ㄣ " shape for twice, and described movable core front end is provided with radially to be wornHole, the free end gap of described linkage piece is through described in forming in the radial perforation of described movable core front end and is connected.
3. wall earth leakage protective socket according to claim 1, is characterized in that: described connector below is provided with elastic componentForm moving contact return unit, described moving contact return unit makes moving contact have the elastic force separating with stationary contact.
4. wall earth leakage protective socket according to claim 1, is characterized in that: before the corresponding installation in the described front panel back sidePanel cover is arranged with the annular seal groove of a circle sealing outward, in described annular seal groove, is provided with sealing ring, and described sealing ring is slightly prominentFor described front panel back side plane of living in.
5. wall earth leakage protective socket according to claim 1, is characterized in that: described electric leakage electromagnetism actuating mechanism and leakagePower detection circuit and being arranged on a circuit board, described SR and the electromagnetic assembly both sides in circuit board, described boxIn the inner chamber of body, be provided with some columns, the position distribution of described some columns and circuit board shape match, column and circuit board phaseThe side of pasting is provided with highly consistent convex tendon, the top forming circuit plate saddle of convex tendon, and what described circuit board was placed in is described someOn circuit board saddle between column, be also provided with fixed support in the inner chamber of box body, described fixed support has two and bases oneself upon portionAnd across the crossbeam portion of basing oneself upon between portion at two, described support bracket fastened crossbeam portion is crossed on circuit board top, in crossbeam portionThe position corresponding with receptacle sockets is provided with socket electric-conductor; Described electric-leakage detection circuit be also provided with test contact and test byButton, test contact is made up of break and movable contact spring, and described break and movable contact spring are arranged on circuit board towards one of front panelOn side, described testing button is arranged on fixed support.
6. wall earth leakage protective socket according to claim 5, is characterized in that: described movable contact spring is made up of sheet metal,One end is fixed, and the other end is free end, and free end is in stationary contact top, and described testing button comprises a shaft-like pressing leverPortion and extend to the press section of free end top from pressing lever portion one side, described pressing lever subordinate holds axially and is slidably disposed onOn fixed support, on circuit board, the position adjacent with described free end is provided with through hole and forms guide hole, the pressing of described testing buttonSplenium is provided with extended guide part and described guide hole matched in clearance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610091839.XA CN105591248B (en) | 2016-02-19 | 2016-02-19 | A kind of wall earth leakage protective socket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610091839.XA CN105591248B (en) | 2016-02-19 | 2016-02-19 | A kind of wall earth leakage protective socket |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105591248A true CN105591248A (en) | 2016-05-18 |
| CN105591248B CN105591248B (en) | 2018-01-19 |
Family
ID=55930603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610091839.XA Active CN105591248B (en) | 2016-02-19 | 2016-02-19 | A kind of wall earth leakage protective socket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105591248B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2184993Y (en) * | 1993-09-17 | 1994-12-07 | 徐杞宪 | Leakage protective plug |
| WO2003019734A1 (en) * | 2001-08-23 | 2003-03-06 | Rit Technologies Ltd. | High data rate interconnecting device |
| DE202004008334U1 (en) * | 2004-05-25 | 2004-09-02 | Geb, Nikolaus | Wall outlet socket fitting strip for portable electrical operating devices has an in-built differential current meter for measuring earth conductor current and contact-voltage current |
| CN2733662Y (en) * | 2004-09-22 | 2005-10-12 | 上海益而益电器制造有限公司 | Power plug with leakage protection function |
| CN200972968Y (en) * | 2006-10-13 | 2007-11-07 | 黄华道 | Leakage protection socket |
| CN205376935U (en) * | 2016-02-19 | 2016-07-06 | 温州宝丰电气有限公司 | Wall earth leakage protection socket |
-
2016
- 2016-02-19 CN CN201610091839.XA patent/CN105591248B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2184993Y (en) * | 1993-09-17 | 1994-12-07 | 徐杞宪 | Leakage protective plug |
| WO2003019734A1 (en) * | 2001-08-23 | 2003-03-06 | Rit Technologies Ltd. | High data rate interconnecting device |
| DE202004008334U1 (en) * | 2004-05-25 | 2004-09-02 | Geb, Nikolaus | Wall outlet socket fitting strip for portable electrical operating devices has an in-built differential current meter for measuring earth conductor current and contact-voltage current |
| CN2733662Y (en) * | 2004-09-22 | 2005-10-12 | 上海益而益电器制造有限公司 | Power plug with leakage protection function |
| CN200972968Y (en) * | 2006-10-13 | 2007-11-07 | 黄华道 | Leakage protection socket |
| CN205376935U (en) * | 2016-02-19 | 2016-07-06 | 温州宝丰电气有限公司 | Wall earth leakage protection socket |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105591248B (en) | 2018-01-19 |
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