CN201425994Y - Power plug with leakage protection function - Google Patents

Power plug with leakage protection function Download PDF

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Publication number
CN201425994Y
CN201425994Y CN2009200577225U CN200920057722U CN201425994Y CN 201425994 Y CN201425994 Y CN 201425994Y CN 2009200577225 U CN2009200577225 U CN 2009200577225U CN 200920057722 U CN200920057722 U CN 200920057722U CN 201425994 Y CN201425994 Y CN 201425994Y
Authority
CN
China
Prior art keywords
shell
arm
pull bar
contact
protection function
Prior art date
Application number
CN2009200577225U
Other languages
Chinese (zh)
Inventor
邹建华
Original Assignee
中山市开普电器有限公司
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 中山市开普电器有限公司 filed Critical 中山市开普电器有限公司
Priority to CN2009200577225U priority Critical patent/CN201425994Y/en
Application granted granted Critical
Publication of CN201425994Y publication Critical patent/CN201425994Y/en

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Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/66Structural association with built-in electrical component
    • H01R13/70Structural association with built-in electrical component with built-in switch
    • H01R13/713Structural association with built-in electrical component with built-in switch the switch being a safety switch
    • H01R13/7135Structural association with built-in electrical component with built-in switch the switch being a safety switch with ground fault protector
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/28Coupling parts carrying pins, blades or analogous contacts and secured only to wire or cable
    • H01R24/30Coupling parts carrying pins, blades or analogous contacts and secured only to wire or cable with additional earth or shield contacts
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2103/00Two poles

Abstract

The utility model discloses a power plug with leakage protection function, which comprises a shell, a reset button and a test button arranged on the top surface of the shell; a power live wire pin, aneutral line pin and a ground wire pin are arranged are arranged at the bottom of the shell, a circuit board is arranged in the shell, a leakage protection circuit for detecting the cable leakage fault of the power supply output is arranged on the circuit board, and a tripping device for connecting or disconnecting the dynamic contact with the static contact is arranged in the shell; the utility model aims to provide a power plug with leakage protection function, which has strong safety protection performance, simple structure, reasonable design, is convenient for batch production, can detectthe power supply leakage fault in real time and cut off the connection of the power supply and the load.

Description

A kind of attaching plug with creepage protection function

[technical field]

The utility model relates to a kind of attaching plug (being called for short Europe rule PRCD) with creepage protection function, refers in particular to a kind of attaching plug with creepage protection function that is installed on the household electrical appliance such as air-conditioning, refrigerator, TV.

[background technology]

At present, people are connected to household electrical appliance on the mains supply by attaching plug, the most of structures of attaching plug on the market are as follows now: include shell, two or three are installed on shell expose pin outside and the feed cable lead that is connected with pin, when producing electrical equipment, power supply contact on the wiring board in the feed cable lead of attaching plug and the electrical equipment directly is fixed together, forms and be electrically connected.When needs use household electrical appliance, only need pin with this attaching plug be inserted in the socket and get final product, so just realized being connected of household electrical appliance and mains supply.Because this kind attaching plug inside does not have the earth leakage protective structure, leak current fault occurs when between pin outlet side live wire, the neutral line, ground wire, and during the short trouble of the pin outlet side live wire and the neutral line, will directly cause the infringement of household electrical appliance.Occur some at present and had the attaching plug of creepage protection function; though when breaking down, can cut off the electricity supply, play the effect of protection household electrical appliance, the internal structure of these attaching plugs is relatively complicated at present; be not easy to a large amount of productions, be necessary to address the above problem for this reason.

[utility model content]

The utility model has overcome the deficiency of above-mentioned technology, and the attaching plug with creepage protection function that a kind of safeguard protection performance is strong, simple in structure, reasonable in design, be convenient to produce in batches, can detect in real time the feed cable leak current fault and in time cut off the electricity supply and be connected with load is provided.

For achieving the above object, the utility model is taked following technical scheme:

A kind of attaching plug with creepage protection function, include shell, be provided with reset button and testing button at the shell top surface, be provided with the power firestreak pin at outer casing bottom, neutral line pin, portion is provided with wiring board in the enclosure, be provided with the leakage protection circuit of the cable leakage fault that is used to detect power supply output in the circuit board, be provided with the trip gear that moving contact can be contacted or disconnects with fixed contact in the enclosure, this trip gear includes fixing guard shield in the enclosure, side at guard shield can slide up and down to be equipped with the pull bar of fixedlying connected with reset button, be provided with the driving projection in the pull bar upper end, respectively be fixed with the static contact that a slice is connected with loaded cable in both sides, pull bar lower end, static contact is provided with fixed contact, pull bar bottom is connected with pull bar back-moving spring guard shield and is provided with in that drive can be to the cross-arm of lower slider under the projection engaging, respectively be fixed with at the two ends of cross-arm a slice respectively with the power firestreak pin, the movable contact spring that neutral line pin connects, movable contact spring is provided with moving contact, it is provided with on the position corresponding with fixed contact, the top of fixed contact, be connected with cross-arm back-moving spring, the screens that on cross-arm, also is provided with in the cross-arm bottom; At guard shield opposite side cavity internal fixation the tripping coil that is electrically connected with wiring board is arranged, in tripping coil, be provided with static gag bit; Be hinged with rotating part at the guard shield middle part, the free end of this rotating part be positioned at tripping coil under, its be provided with can with the suction sheet of static gag bit adhesive, the hinged end of described rotating part top be provided with cross-arm on the trip of clamping matching, the below of described rotating part is connected with the rotating part spring.

Described shell is by snapping together loam cake and lower cover is formed, and described reset button and testing button are arranged in the hole of loam cake upper surface and leak outside, and the hole that described power firestreak pin, neutral line pin pass the lower cover lower surface reaches the external world.

Be provided with fixed leg at the guard shield middle part, be provided with hinge, respectively be provided with a hinge hole that is hinged on the hinge two ends respectively in the rotating part both sides, be provided with the chute that slides up and down for cross-arm in the fixed leg upper end in the fixed leg lower end.

One side guard shield of fixed leg is provided with fairlead, and described pull bar lower end is enclosed within fairlead and also can slides up and down along it outward, and described pull bar back-moving spring is arranged on fairlead inside.

Be provided with U-shaped metal needle and test reset spring below the described testing button, the below of corresponding in the circuit board U-shaped metal needle is provided with two test solder joints, and itself and U-shaped metal needle are formed the analogue test switch.

Described leakage protection circuit includes tripping coil, zero-sequence transformer, control chip and controllable silicon; the becket of described zero-sequence transformer is enclosed within on the feed cable that connects load; the secondary coil of zero-sequence transformer is connected with the control chip input; the output of control chip is connected with the silicon controlled control utmost point, and silicon controlled is anodal to be connected with tripping coil one end.

The beneficial effects of the utility model are: 1, when household electrical appliance in use the electric leakage accident take place accidentally, when leakage current reaches 5~10mA, can cut off the electricity supply, play the effect of protection household electrical appliance; 2, when power firestreak or the neutral line any occur opening circuit mutually, can cut off the electricity supply, play the effect of protection household electrical appliance; 3, internal structure of the present utility model is relatively simple, and is reasonable in design, is convenient to a large amount of productions.

[description of drawings]

Fig. 1 is a three-dimensional exploded view of the present utility model;

Fig. 2 is a plane graph of the present utility model;

Fig. 3 is the A-A profile of Fig. 2;

Fig. 4 removes structure chart behind the loam cake for the utility model;

Fig. 5 is one of trip gear stereogram of the present utility model;

Fig. 6 is two of a trip gear stereogram of the present utility model;

Fig. 7 is three of a trip gear stereogram of the present utility model;

Fig. 8 is a trip gear exploded view of the present utility model;

Fig. 9 is the circuit theory diagrams of leakage protection circuit of the present utility model.

[embodiment]

Be described in further detail below in conjunction with accompanying drawing and execution mode of the present utility model:

Referring to Fig. 1-8, the utility model discloses a kind of attaching plug with creepage protection function, include shell 1, be provided with reset button 11 and testing button 12 at shell 1 top surface, be provided with power firestreak pin 2 in shell 1 bottom, neutral line pin 4, be provided with wiring board 5 in shell 1 inside, wiring board 5 is provided with the leakage protection circuit of the cable leakage fault that is used to detect power supply output, in shell 1, be provided with the trip gear 7 that moving contact 742 can be contacted or disconnects with fixed contact 723, this trip gear 7 includes the guard shield 71 that is fixed in the shell 1, side at guard shield 71 can slide up and down to be equipped with the pull bar 72 of fixedlying connected with reset button 11, be provided with driving projection 721 in pull bar 72 upper ends, respectively be fixed with the static contact 722 that a slice is connected with loaded cable in both sides, pull bar 72 lower end, static contact 722 is provided with fixed contact 723, be connected with pull bar back-moving spring 73 in pull bar 72 bottoms, guard shield 71 is provided with can be to the cross-arm 74 of lower slider under 721 engagings of driving projection, respectively be fixed with at the two ends of cross-arm 74 a slice respectively with power firestreak pin 2, the movable contact spring 741 that neutral line pin 4 connects, movable contact spring 741 is provided with moving contact 742, on the corresponding position of its top that fixed contact 723 is set and fixed contact 723, be connected with cross-arm back-moving spring 75 in cross-arm 74 bottoms, the screens 743 that on cross-arm 74, also is provided with; At guard shield 71 opposite side cavity internal fixation the tripping coil 76 that is electrically connected with wiring board 5 is arranged, in tripping coil 76, be provided with static gag bit; Be hinged with rotating part 77 at guard shield 71 middle parts, the free end of this rotating part 77 be positioned at tripping coil 76 under, its be provided with can with the suction sheet 78 of static gag bit adhesive, the hinged end of described rotating part 77 top is provided with the trip 771 that cooperates with screens 743 on the cross-arm 74, and the below of described rotating part 77 is connected with rotating part spring 79.

When needs use household electrical appliance, need the pin of this attaching plug is inserted in the socket, at this moment, disconnect between moving contact and the fixed contact, want to realize being connected of household electrical appliance and mains supply, need press reset button 11, it drives pull bar 72 and moves down, and compress pull bar back-moving spring 73 simultaneously, driving projection 721 on the pull bar 81 is pressing cross-arm 74 to lower slider, compress cross-arm back-moving spring 75 simultaneously, the trip 771 on the rotating part 77 is left in screens 743 on the cross-arm 74 at this moment, no longer block trip 771, because tripping coil 76 energisings, make the static gag bit in it produce magnetic, attract sheet 78, the free end of inhaling sheet 78 band rotating parts 77 rotates to the static gag bit direction, be pull-in on the static gag bit up to inhaling sheet 78, in rotating part 77 rotating process, the position of trip 771 descends, cross-arm 74 is continued to lower slider, after unclamping hand, pull bar back-moving spring 73 discharges pushing drawing rod and moves up, and makes fixed contact contact with moving contact, realize being electrically connected between load and the pin, mains supply just can have been powered to household electrical appliance by this plug like this.

Described shell 1 is by snapping together loam cake 13 and lower cover 14 is formed, described reset button 11 and testing button 12 are arranged in the hole of loam cake 13 upper surfaces and leak outside, and the hole that described power firestreak pin 2, neutral line pin 4 pass lower cover 14 lower surfaces reaches the external world.

Be provided with fixed leg 711 at guard shield 71 middle parts, be provided with hinge 712 in fixed leg 711 lower ends, respectively be provided with a hinge hole that is hinged on hinge 712 two ends respectively in rotating part 77 both sides, be provided with the chute 713 that slides up and down for cross-arm 74 in fixed leg 711 upper ends.

One side guard shield 71 of fixed leg 711 is provided with fairlead 714, and described pull bar 72 lower ends are enclosed within outside the fairlead 714 and can slide up and down along it, and described pull bar back-moving spring 73 is arranged on fairlead 714 inside.

Be provided with U-shaped metal needle 121 and test reset spring 122 below the described testing button 12, be provided with two test solder joints below corresponding U-shaped metal needle 121 on the wiring board 5, itself and U-shaped metal needle 121 are formed analogue test switch TEST.When pressing testing button 12; two test solder joint moments on U-shaped metal needle 121 and the wiring board 5 contact; the test loop is switched on; zero-sequence transformer 62 on the leakage protection circuit produces a test leakage current; its secondary coil produces an induced signal; the controllable silicon SCR conducting that is triggered; tripping coil 76 is by short circuit making; static gag bit loses magnetic force; inhaling sheet 78 is released; rotating part 77 free ends rotate, and rise on the position of trip 771, and cross-arm 74 is moved up under 75 effects of cross-arm back-moving spring; make moving contact and fixed contact break away from; realize the disconnection between load and the pin, mains supply just stops household electrical appliance being powered like this, and household electrical appliance quit work.

Referring to Fig. 9; described leakage protection circuit includes tripping coil 76, zero-sequence transformer 62, control chip U1 and controllable silicon SCR; the becket of described zero-sequence transformer 62 is enclosed within on the feed cable that connects load; the secondary coil of zero-sequence transformer 62 is connected with control chip U1 input; the output of control chip U1 is connected with the control utmost point of controllable silicon SCR, and the positive pole of controllable silicon SCR is connected with tripping coil 76 1 ends.When the electric leakage accident in use takes place in household electrical appliance accidentally, when leakage current reaches 5~10mA, leakage current signal of induction in the secondary coil of zero-sequence transformer 62, the controllable silicon SCR conducting that is triggered, tripping coil 76 is by short circuit making, static gag bit loses magnetic force, inhaling sheet 78 is released, rotating part 77 free ends rotate, and rise on the position of trip 771, and cross-arm 74 is moved up under 75 effects of cross-arm back-moving spring, make moving contact and fixed contact break away from, realize the disconnection between load and the pin, mains supply just stops household electrical appliance being powered like this, and household electrical appliance quit work.

Perhaps, when power firestreak or the neutral line any occurred opening circuit mutually, tripping coil 76 opened circuit, and static gag bit loses magnetic force, inhaling sheet 78 is released, rotating part 77 free ends rotate, and rise on the position of trip 771, and cross-arm 74 is moved up under 75 effects of cross-arm back-moving spring, make moving contact and fixed contact break away from, realize the disconnection between load and the pin, mains supply just stops household electrical appliance being powered like this, and household electrical appliance quit work.

Claims (6)

1, a kind of attaching plug with creepage protection function, include shell (1), be provided with reset button (11) and testing button (12) at shell (1) top surface, be provided with power firestreak pin (2) in shell (1) bottom, neutral line pin (4), be provided with wiring board (5) in shell (1) inside, wiring board (5) is provided with the leakage protection circuit of the cable leakage fault that is used to detect power supply output, it is characterized in that in shell (1), being provided with the trip gear (7) that moving contact (742) can be contacted or disconnects with fixed contact (723), this trip gear (7) includes the guard shield (71) that is fixed in the shell (1), side at guard shield (71) can slide up and down to be equipped with the pull bar (72) of fixedlying connected with reset button (11), be provided with driving projection (721) in pull bar (72) upper end, respectively be fixed with the static contact (722) that a slice is connected with loaded cable in pull bar (72) both sides, lower end, static contact (722) is provided with fixed contact (723), be connected with pull bar back-moving spring (73) in pull bar (72) bottom, guard shield (71) is provided with can be to the cross-arm (74) of lower slider under driving projection (721) engaging, respectively be fixed with at the two ends of cross-arm (74) a slice respectively with power firestreak pin (2), the movable contact spring (741) that neutral line pin (4) connects, movable contact spring (741) is provided with moving contact (742), it is provided with on the position corresponding with fixed contact (723), the top of fixed contact (723), be connected with cross-arm back-moving spring (75), the screens (743) that on cross-arm (74), also is provided with in cross-arm (74) bottom; At guard shield (71) opposite side cavity internal fixation the tripping coil (76) that is electrically connected with wiring board (5) is arranged, in tripping coil (76), be provided with static gag bit; Be hinged with rotating part (77) at guard shield (71) middle part, the free end of this rotating part (77) be positioned at tripping coil (76) under, its be provided with can with the suction sheet (78) of static gag bit adhesive, the hinged end of described rotating part (77) top is provided with the trip (771) that cooperates with screens (743) on the cross-arm (74), and the below of described rotating part (77) is connected with rotating part spring (79).
2, a kind of attaching plug according to claim 1 with creepage protection function; it is characterized in that described shell (1) is by snapping together loam cake (13) and lower cover (14) is formed; described reset button (11) and testing button (12) are arranged in the hole of loam cake (13) upper surface and leak outside, and the hole that described power firestreak pin (2), neutral line pin (4) pass lower cover (14) lower surface reaches the external world.
3, a kind of attaching plug according to claim 1 and 2 with creepage protection function; it is characterized in that being provided with fixed leg (711) at guard shield (71) middle part; be provided with hinge (712) in fixed leg (711) lower end; respectively be provided with a hinge hole that is hinged on hinge (712) two ends respectively in rotating part (77) both sides, be provided with the chute (713) that slides up and down for cross-arm (74) in fixed leg (711) upper end.
4, a kind of attaching plug according to claim 3 with creepage protection function; a side guard shield (71) that it is characterized in that fixed leg (711) is provided with fairlead (714); described pull bar (72) lower end is enclosed within outside the fairlead (714) and can slides up and down along it, and described pull bar back-moving spring (73) is arranged on fairlead (714) inside.
5,, a kind of attaching plug according to claim 1 with creepage protection function; it is characterized in that described testing button (12) below be provided with U-shaped metal needle (121) and test reset spring (122); the below of going up corresponding U-shaped metal needle (121) at wiring board (5) is provided with two test solder joints, and itself and U-shaped metal needle (121) are formed analogue test switch (TEST).
6, a kind of attaching plug according to claim 1 with creepage protection function; it is characterized in that described leakage protection circuit includes tripping coil (76), zero-sequence transformer (62), control chip (U1) and controllable silicon (SCR); the becket of described zero-sequence transformer (62) is enclosed within on the feed cable that connects load; the secondary coil of zero-sequence transformer (62) is connected with control chip (U1) input; the output of control chip (U1) is connected with the control utmost point of controllable silicon (SCR), and the positive pole of controllable silicon (SCR) is connected with tripping coil (76) one ends.
CN2009200577225U 2009-05-27 2009-05-27 Power plug with leakage protection function CN201425994Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009200577225U CN201425994Y (en) 2009-05-27 2009-05-27 Power plug with leakage protection function

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CN2009200577225U CN201425994Y (en) 2009-05-27 2009-05-27 Power plug with leakage protection function
EP10779986.8A EP2437359A4 (en) 2009-05-27 2010-01-13 Power plug with leakage protection function
PCT/CN2010/000060 WO2010135904A1 (en) 2009-05-27 2010-01-13 Power plug with leakage protection function

Publications (1)

Publication Number Publication Date
CN201425994Y true CN201425994Y (en) 2010-03-17

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ID=42025448

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2009200577225U CN201425994Y (en) 2009-05-27 2009-05-27 Power plug with leakage protection function

Country Status (3)

Country Link
EP (1) EP2437359A4 (en)
CN (1) CN201425994Y (en)
WO (1) WO2010135904A1 (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010135904A1 (en) * 2009-05-27 2010-12-02 中山市开普电器有限公司 Power plug with leakage protection function
CN102025086A (en) * 2010-12-05 2011-04-20 中山市开普电器有限公司 Power plug with leakage protection function
CN102064522A (en) * 2011-01-24 2011-05-18 中山市开普电器有限公司 Novel leakage protector
CN102760620A (en) * 2011-04-27 2012-10-31 施耐德电器工业公司 Auxiliary tripper for circuit breaker and circuit breaker adopting auxiliary tripper
CN102761096A (en) * 2011-04-28 2012-10-31 西门子公司 Undervoltage-overvoltage protection device and method
CN103943427A (en) * 2013-09-24 2014-07-23 上海蕴原电器有限公司 Portable ground fault circuit breaker
CN104577546A (en) * 2015-01-23 2015-04-29 温州能美电器有限公司 Leakage protection plug
CN104599906A (en) * 2013-10-30 2015-05-06 益而益(集团)有限公司 Plug type circuit breaker
CN104682083A (en) * 2015-02-12 2015-06-03 冠德科技(北海)有限公司 Power plug of charger
CN104934268A (en) * 2015-05-28 2015-09-23 深圳市良辉科技有限公司 Leakage protection apparatus capable of forced trip-out
CN109767955A (en) * 2019-03-12 2019-05-17 杭州汉莱电器有限公司 Self-locking type earth leakage protective device

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CN102801041A (en) * 2012-08-27 2012-11-28 刘立文 Anti-explosion plug
CN105680255B (en) * 2016-03-30 2018-04-06 陈德伦 A kind of switch socket and wiring board with circuit protection function
CN105790001A (en) * 2016-04-05 2016-07-20 深圳市南岛机电有限公司 Remote control intelligent plug, remote control intelligent plug system and infrared remote control method thereof
US10644438B2 (en) 2017-05-11 2020-05-05 Chengli Li Power plug with leakage current protection device

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US6122155A (en) * 1997-04-22 2000-09-19 Tower Manufacturing Corporation Mini appliance leakage current interrupter
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CN100472908C (en) * 2006-06-20 2009-03-25 浙江正泰建筑电器有限公司 Double-magnetic high sensitive earth leakage protective device
CN200950504Y (en) * 2006-09-20 2007-09-19 上海益而益电器制造有限公司 Electric power plug having earth leakage protective function
CN200965956Y (en) * 2006-10-23 2007-10-24 上海益而益电器制造有限公司 Electrical leakage protective power supply plug
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CN201181681Y (en) * 2008-04-14 2009-01-14 上海益而益电器制造有限公司 Trip mechanism and creepage protecting socket with the same
CN201425994Y (en) * 2009-05-27 2010-03-17 中山市开普电器有限公司 Power plug with leakage protection function

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010135904A1 (en) * 2009-05-27 2010-12-02 中山市开普电器有限公司 Power plug with leakage protection function
CN102025086A (en) * 2010-12-05 2011-04-20 中山市开普电器有限公司 Power plug with leakage protection function
CN102025086B (en) * 2010-12-05 2012-08-22 中山市开普电器有限公司 Power plug with leakage protection function
CN102064522A (en) * 2011-01-24 2011-05-18 中山市开普电器有限公司 Novel leakage protector
CN102760620A (en) * 2011-04-27 2012-10-31 施耐德电器工业公司 Auxiliary tripper for circuit breaker and circuit breaker adopting auxiliary tripper
CN102761096A (en) * 2011-04-28 2012-10-31 西门子公司 Undervoltage-overvoltage protection device and method
CN103943427B (en) * 2013-09-24 2016-01-20 上海蕴原电器有限公司 Portable ground-fault interrupter
CN103943427A (en) * 2013-09-24 2014-07-23 上海蕴原电器有限公司 Portable ground fault circuit breaker
CN104599906A (en) * 2013-10-30 2015-05-06 益而益(集团)有限公司 Plug type circuit breaker
CN104577546A (en) * 2015-01-23 2015-04-29 温州能美电器有限公司 Leakage protection plug
CN104682083A (en) * 2015-02-12 2015-06-03 冠德科技(北海)有限公司 Power plug of charger
CN104934268A (en) * 2015-05-28 2015-09-23 深圳市良辉科技有限公司 Leakage protection apparatus capable of forced trip-out
CN109767955A (en) * 2019-03-12 2019-05-17 杭州汉莱电器有限公司 Self-locking type earth leakage protective device

Also Published As

Publication number Publication date
EP2437359A4 (en) 2014-04-16
EP2437359A1 (en) 2012-04-04
WO2010135904A1 (en) 2010-12-02

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Granted publication date: 20100317

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