CN2487101Y

CN2487101Y - Plug type leakage switch and leakage detector

Info

Publication number: CN2487101Y
Application number: CN 01225520
Authority: CN
Inventors: 谢华跃; 郭黎
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-05-22
Filing date: 2001-05-22
Publication date: 2002-04-17
Anticipated expiration: 2011-05-22

Abstract

A leakage circuit switch comprises a main body and a base body and the base body junction pole is used to connect input and output wires, and the main body is provided with input and output wire plugs, and the base has corresponding input and output sockets, and the main body is connected with the base body through a plugging method. The base can be provided with a fuse pipe. In the way, a professional electrician is not needed to dismantle bolts during the circuit or leakage circuit switch repairing process, only the leakage circuit switch is needed to be pulled out, and one load switch is saved. Moreover, a leakage current detector is designed, and when the leakage circuit switch is pulled out and the leakage current detector is plugged in, the circuit leakage current detecting can be done, and the operation is easy, convenient, and economical.

Description

Plug type leak electrical switch and electric leakage tester

The utility model is a kind of electrical equipment that belongs to the protection person, device security in the low-voltage electrical apparatus.

One, there is following shortcoming in existing leakage switch:

(1) when leakage switch maintenance or replacing, need professional electrician that it is installed screw and relax one by one with each binding post, tighten one by one again after the replacing, very bothersome.

(2) according to generally requiring in the upper end of leakage switch a knife switch to be installed on the circuit, when changing leakage switch, must draw back knife switch, make circuit have obvious cut-off point.Owing to increased a knife switch, increased cost.

(3) for not with the leakage switch of overload, short circuit, knife switch must be the on-load switch of band overload, short circuit, has more increased cost.

The purpose of this utility model provides a kind of simple in structure, cheap, maintenance, need not professional electrician when changing, the leakage switch that the user just can change voluntarily.

The purpose of this utility model can realize by following measure: leakage switch is divided into main body (1) and pedestal (6) two parts, realizes connecting by pluggable mode.Its electrical principle of main body (1) is identical with common leakage switch; pedestal (6) comprises input terminal (9) and outlet terminal (10), can realize short-circuit protection for the leakage switch of overload, short circuit a fuse tube (11) not being set in the outlet of pedestal phase line.

Below in conjunction with accompanying

drawing

1,2, the utility model is described in further detail.

(1) the plug-in leakage switch is divided into main body (1) and pedestal (6) two parts.Inserting main body (1) after pedestal (6) is installed and finished can use.Its electrical principle of main body (1) is identical with common leakage switch.Inlet wire plug (4) and outlet plug (5) are arranged on the main body, have leading-in socket (7) and output socket (8) corresponding with it on the pedestal (6); Main body (1) combines by pluggable mode with pedestal (6), power supply is introduced from the input terminal (9) of pedestal (6), through leading-in socket (7), inlet wire plug (4), to main body (1), enter output socket (8) through outlet plug (5) again, deliver to the user through the outlet terminal (10) of pedestal (6) then.

(2) between output socket (8) and outlet terminal (10) connection, fuse tube (11) is housed, and regulation, fuse tube (11) only is contained on the phase line, and is not adorn fuse tube (11) on the neutral line.

(3) to go up phase line turnover binding post can be a plurality of to plug-in leakage switch pedestal (6), and binding post can be that screw connects, and also plug connects.

(4) the plug-in leakage switch shows with advantage that common leakage switch is compared in operation and maintenance:

The first, if main body needs to change because of damage, maybe need cut off the power supply and search fault, only need extract main body (1), insert new main body (1) and get final product, need not to unload screw, change wiring (referring to accompanying drawing 1).

The second, if when causing fuse tube (11) fusing to need to change because of overload or short circuit, only need extract main body (1) promptly cuts off the electricity supply, tangible cut-off point is arranged, and be equivalent to the effect of an on-load switch this moment, just can realize not having electricity, change fuse tube (11) (referring to accompanying drawing 1) safely.

Two, another design of the utility model is, has designed and the matching used plug-in leakage current of plug-in leakage switch tester.Typically use the leakage current pincerlike meter leakage current of electricity consumer is tested, the instrument of this costliness is difficult to accomplish to popularize.Newly-designed plug-in leakage current tester is to utilize the plug principle, and plug-in leakage switch main body (1) is extracted, and plugs leakage current tester shell (16), can measure the size of leakage current.Convenient, economical.

Describe below in conjunction with accompanying drawing 3:

The leakage current tester has a shell (16), in inlet wire plug (12) is arranged, instrument transformer (13) is measured indicating section (14), leading-in socket (7), the output socket (8) of inlet wire plug (12), outlet plug (15) and pedestal (6) are corresponding, and both connect by pluggable mode.After plugging leakage current tester shell (16), electric current is by the leading-in socket (7) of pedestal (6) inlet wire plug (12), instrument transformer (13), the output socket (15) to tester shell (16), the output socket (8) that flows to pedestal (6) is again delivered to the user through leading-out terminal (10), when leakage current is arranged, instrument transformer (13) output signal is delivered to and is measured indicating section (14), the size that just can read leakage current.

Because the primary winding of current transformer (13) can use multiturn, so output signal strengthens greatly, simplified measurement indicating section (14), and current transformer (13) need not adopt the pincerlike mode that needs opening simultaneously, and cost also descends greatly.The supporting use of plug-in leakage switch and plug-in leakage current tester will provide more convenience for searching fault.

For attractive in appearance, the length and width size of pedestal (6) should be consistent with the length and width of leakage switch main body (1) and leakage current tester shell (16), is about 80mm according to a large amount of leakage switch that use of present China, and wide about 64mm is if use this size to be convenient to promote.

Claims

1, a kind of leakage switch is characterized in that: it is that a leakage switch main body (1) and pedestal (6) two are partly formed; Inlet wire plug (4) and outlet plug (5) are arranged on the main body (1), have leading-in socket (7) corresponding with it with output socket (8) on the pedestal, main body (1) combines by pluggable mode with pedestal (6); After plugging, power supply is introduced from the input terminal (9) of pedestal (6), to leakage switch main body (1), enters output socket (8) through outlet plug (5) through leading-in socket (7), inlet wire plug (4) again, delivers to the user through the outlet terminal (10) of pedestal (6) then.

2, leakage switch according to claim 1 is characterized in that: between output socket (8) and outlet terminal (10) connection, install fuse tube (11), and regulation, fuse tube (11) only is contained on the phase line, and is not adorn fuse tube on the neutral line.

3, according to claim 1,2 described leakage switch, it is characterized in that: it can be 1-3 that pedestal (6) passes in and out the line binding post mutually, and binding post can be that screw connects, and also plug-socket connects.

4, a kind of leakage current tester is characterized in that: it is that a tester shell (16) and pedestal (6) two parts are formed; Inlet wire plug (12) is arranged in the shell (16), instrument transformer (13), measure indicating section (14), outlet plug (15), inlet wire plug (12), outlet plug (15) are corresponding with leading-in socket (7), the output socket (8) of pedestal (6), and tester shell (16) and pedestal (6) are by the pluggable mode combination; After plugging, power supply is by the leading-in socket (7) of pedestal (6) inlet wire plug (12), instrument transformer (13), the output socket (15) to tester shell (16), arrive the output socket (8) of pedestal (6) again, deliver to the user through leading-out terminal (10), instrument transformer (13) output signal is delivered to and is measured indicating section (14).

5, according to claim 1,4 described leakage switch and leakage current test, it is characterized in that pedestal is identical with leakage switch main body (1), tester shell (16) length and width size, and is about 80mm, wide about 64mm.