CN203367664U

CN203367664U - Leakage protection socket

Info

Publication number: CN203367664U
Application number: CN 201320436581
Authority: CN
Inventors: 张丽丽
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-07-22
Filing date: 2013-07-22
Publication date: 2013-12-25
Anticipated expiration: 2023-07-22

Abstract

The utility model discloses a leakage protection socket. The socket comprises a socket body. A socket panel is arranged on the front face of the socket body. A right fixing threaded hole, a left fixing threaded hole, a live wire jack, a zero line jack and a ground wire jack are provided in the socket panel; and a live wire jack terminal, a zero line jack terminal and a ground wire jack terminal are installed inside the socket body corresponding to the jacks. A leakage protector is installed on the socket body, and an experiment button, a leakage indicator light and a fault reset button are installed on the leakage protector and are exposed outside the socket panel. The socket has the beneficial effects of practicability, simple structure, low production cost, safe usage, and good leakage-proof effect.

Description

A kind of earth leakage protective socket

Technical field

The utility model relates to a kind of earth leakage protective socket.

Background technology

Be unable to do without electricity in people's life, as a kind of mode of electrical connection, socket gets married front yard and office space than indispensable electric device.At present socket relatively common are two kinds of fixing type socket and mobile jacks, according to the jack of socket, divides and can be divided into two socket/tri-sockets and Multiple jack.Can be divided into two large classes according to having or not the socket protective function to have, a kind of is the unprotect functional socket, as common five sockets.A kind of is as belt switch power supply indicator socket/band fuse receptacle by the defencive function socket.But these sockets with defencive function leak electricity for a lot of electrical appliance metal shells, power line breakage and the aging earth leakage that causes cause fire and the unprotect function, and prevent that the direct or indirect electrical shock protection function of human body is not strong.The earth leakage protective of these sockets all relies on total earth leakage circuit-breaker; and total earth leakage circuit-breaker is in distribution box; a lot of families button of test per month of earth leakage circuit-breaker in electric situation of being in was not all used, and this has brought hidden danger just to the safe action of earth leakage circuit-breaker.The office space also had does not just fill earth leakage circuit-breaker at all, and directly socket has been contained in below air switch. and bring hidden danger to safety in production and safety life.

The utility model content

Technical problem to be solved in the utility model is for the deficiencies in the prior art, and a kind of novel earth leakage protective socket is provided.

To achieve these goals, the measure that the utility model is taked:

A kind of earth leakage protective socket, comprise jack body, the jack body front is provided with socket panel, offer right fixed screw holes, left fixed screw holes, firewire jack, zero line jack and earth connection jack on socket panel, corresponding firewire jack binding post, zero line jack binding post and earth connection jack binding post are installed in jack body, on described jack body, earth leakage protective device is installed, experiment button, electric leakage indicator light and failure reset button are installed on earth leakage protective device, and experiment button, electric leakage indicator light and failure reset button expose outside socket panel;

Power firestreak lead-in clamp, zero-power line lead-in clamp, earth connection lead-in clamp, live wire output wiring terminal, zero line output wiring terminal and earth connection output wiring terminal are installed on described earth leakage protective device; the live wire output wiring terminal is connected to the firewire jack binding post; the zero line output wiring terminal is connected on the zero line jack binding post, and the earth connection output wiring terminal is connected on earth connection jack binding post.

The beneficial effects of the utility model: practicality, simple in structure, production cost is low, uses safety, anticreep effective.

The accompanying drawing explanation

Fig. 1, the positive planar structure schematic diagram of the utility model.

Fig. 2, the utility model inner plane structural representation.

Fig. 3, the utility model circuit for electric leakage protector schematic diagram.

Embodiment

A kind of earth leakage protective socket, comprise jack body 2, jack body 2 fronts are provided with socket panel 11, offer right fixed screw holes 6 on socket panel 11, left fixed screw holes 7, firewire jack 9, zero line jack 10 and earth connection jack 8, corresponding firewire jack binding post 13 is installed in jack body 2, zero line jack binding post 14 and earth connection jack binding post 12, on described jack body 2, earth leakage protective device 1 is installed, experiment button 3 is installed on earth leakage protective device 1, electric leakage indicator light 4 and failure reset button 5, experiment button 3, electric leakage indicator light 4 and failure reset button 5 expose outside socket panel 11, power firestreak lead-in clamp 15, zero-power line lead-in clamp 16, earth connection lead-in clamp 21, live wire output wiring terminal 19, zero line output wiring terminal 18 and earth connection output wiring terminal 20 are installed on described earth leakage protective device 1, live wire output wiring terminal 19 is connected to firewire jack binding post 13, zero line output wiring terminal 18 is connected on zero line jack binding post 14, and earth connection output wiring terminal 20 is connected on earth connection jack binding post 12.

Use the time of the present utility model; power firestreak is received on power firestreak lead-in clamp 15; zero-power line is received on zero-power line lead-in clamp 16; the power ground line is received on earth connection lead-in clamp 21, after energising, and the experiment button 3 of the earth leakage protective device 1 that tries; can detect earth leakage protective device 1 work; when electric leakage occurring, electric leakage indicator light 4 will be shinny, and electrical appliance loses power supply.After the electrical appliance electric leakage is got rid of, click failure reset button 5, electric leakage indicator light 4 extinguishes, and gets final product normal power supply, and electrical appliance just can work.

Use this novelly can avoid burning out electrical appliance, avoid causing fire, reduce the people and get an electric shock and die, make the electricity consumption that makes of people's safety, avoid various unnecessary losses.

When with the appearance electric leakage; voltage VL is arranged; this voltage VL; output voltage after the D1-D4 bridge rectifier in earth leakage protective device 1 is 0.9VL; the coil voltage of direct current relay J1 is VJ, and when 0.9V is more than or equal to 0.7VJ, earth leakage protective device 1 starts work; load and 220V power supply are disconnected, and the person is avoided Danger Electric shock risk.

The resistance (RD) of earth connection (input) is influential to VL, and its pass is VL=0.78VJ+0.78VJ*RD/RJ (V).The voltage of the direct current relay J1 here is 24V, and RJ=250 ohm, so VL=18.7+0.075RD (V).Because in generally less 30 ohm of RD, when the household electrical appliance power firestreak directly touches shell, its voltage to earth is 220V, and the J1 coil will bear the impact of 198V direct voltage, so earth leakage protective device is short 1 operate time, is about 0.03 second.The coil of direct current relay J1 heats up 0.73 degree centigrade, and relay works on after can resetting.The normally-closed contact that J1-1/J1-2/J1-3 is J1, wherein J1-2/J1-3 is when earth leakage protective device 1 action, and for cutting off the electricity supply, J1-3 connects the self-locking circuit of J1, allows electric leakage indicator light 4 send the electric leakage indication simultaneously.

After fixing a breakdown, can click failure reset button 5, J1 resets.Whether experiment button 3 works for the check protection device, presses experiment button 3, and the J1 action, illustrate that earth leakage protective device 1 is working properly.It is direct current 24V that J1 selects voltage, the relay of resistance R J=200-350 ohm.D1-D4 selects the diode of 2CP17-2CP20 type.Electrolytic capacitor C1 selects the above 20uF's of withstand voltage 160V, and R1 power is that 1/2W1.8 does Europe, the light-emitting diode that electric leakage indicator light 4 is withstand voltage 220v.Upper just passable with corresponding socket binding post connection earth leakage protective device 1 output line again, thus realize the purpose of this utility model.

Claims

1. an earth leakage protective socket, comprise jack body (2), jack body (2) front is provided with socket panel (11), offer right fixed screw holes (6) on socket panel (11), left fixed screw holes (7), firewire jack (9), zero line jack (10) and earth connection jack (8), corresponding firewire jack binding post (13) is installed in jack body (2), zero line jack binding post (14) and earth connection jack binding post (12), it is characterized in that: earth leakage protective device (1) is installed on described jack body (2), experiment button (3) is installed on earth leakage protective device (1), electric leakage indicator light (4) and failure reset button (5), experiment button (3), electric leakage indicator light (4) and failure reset button (5) expose outside socket panel (11).

2. a kind of earth leakage protective socket according to claim 1, it is characterized in that: power firestreak lead-in clamp (15) is installed on described earth leakage protective device (1), zero-power line lead-in clamp (16), earth connection lead-in clamp (21), live wire output wiring terminal (19), zero line output wiring terminal (18) and earth connection output wiring terminal (20), live wire output wiring terminal (19) is connected to firewire jack binding post (13), zero line output wiring terminal (18) is connected on zero line jack binding post (14), earth connection output wiring terminal (20) is connected on earth connection jack binding post (12).