CN209730795U

CN209730795U - A kind of earth leakage circuit-breaker

Info

Publication number: CN209730795U
Application number: CN201920457876.7U
Authority: CN
Inventors: 陈玉芝
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-04-08
Filing date: 2019-04-08
Publication date: 2019-12-03
Anticipated expiration: 2029-04-08

Abstract

The utility model discloses a kind of earth leakage circuit-breakers, it include: back box (101), electric power incoming line terminal (102) i.e. zero terminal, ground wire terminal and fire line terminal, and zero terminal, ground wire terminal and fire line terminal pass through contact head button (108) and zero curve face terminals (1021), ground wire face terminals (1022) are connected with firewire face terminals (1023), furthermore, zero curve face terminals (1021), ground wire face terminals (1022) and firewire face terminals (1023) draw zero curve respectively, leak electricity channelizing line, on firewire to electric sub-member plate (103), on electric sub-member plate output zero curve (104) and firewire (105) to electromagnet (106).And electromagnet (106) is connected further through tripping locking device (107) with contact head button (108), the contact head button (108) is equipped with front cover (109), also, it is additionally provided with button spring (110).

Description

Leakage protection switch

Technical Field

The utility model belongs to a leakage protection switch belongs to the switch field.

Background

When electric leakage occurs, especially household appliances (devices) must be reliably grounded or manually touched to trip and cut off the power supply, so that the common leakage protection switch plays a role of protecting people. However, many families neglect the grounding wire, or the grounding wire is aged and damaged for a long time, or the non-professional person does not access the grounding wire when installing electric appliances (devices), and especially the landlord in a rented house does not pay enough attention, and so on, which causes many people to be hurt or even die every year, resulting in many tragedies.

When the common leakage protection switch on the market leaks electricity, especially household appliances (equipment) must be reliably grounded to protect people. If the ground wire is not connected or the virtual connection of the connected ground wire fails, particularly the ground wire is electrified, and the like, when electric leakage occurs, people touch the electric appliance (equipment), the electric appliance (equipment) can cause injury and even death.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a leakage protection switch is provided.

The utility model provides a technical scheme as follows that above-mentioned technical problem took:

a leakage protection switch comprising: a bottom box (101), a power supply inlet port (102), namely a zero line terminal, a ground line terminal and a fire line terminal, wherein the zero line terminal, the ground line terminal and the fire line terminal are connected with a zero line load terminal (1021), a ground line load terminal (1022) and a fire line load terminal (1023) through a contact button (108), in addition, the zero line load terminal (1021), the ground line load terminal (1022) and the fire line load terminal (1023) are respectively led out a zero line, a leakage current guide line and a fire line to an electronic component board (103), the electronic component board outputs the zero line (104) and the fire line (105) to an electromagnet (106) through the control of the leakage current guide line, the electromagnet (106) is connected with the contact button (108) through a tripping locking device (107), a front cover (109) is arranged on the contact button (108), a button spring (110) is also arranged, and a front cover screw (111) is arranged, the electronic component board (103) is also provided with a test button (1031), wherein a spring is arranged in the electromagnet to always push against a tripping locking device when the leakage switch is intact and the tripping locking device (107) is inserted into the contact button (108) and is powered on when the contact button (108) is pressed;

when the accessed electric appliance (equipment) has electric leakage, the electric leakage current is quickly led into the electronic assembly board (103) through the earth wire load terminal (1022) accessed by the electric appliance (equipment) through the leakage current conducting wire, the electronic assembly board (103) controls the electromagnet (106) to suck, the tripping locking device (107) is pulled out from the contact button (108), and the button spring (110) pushes out the contact button (108), so that the aim of cutting off the power supply is fulfilled.

Preferably, zero line N load terminal inserts the zero line position N of electronic component board all the time, inserts electronic component board live wire position L all the time to live wire L load terminal, has become an electric leakage water conservancy diversion line to the earth connection utility model design of electrical apparatus, the leading-in electronic component board of the electric current of leaking electricity.

Preferably, the ground wire of the electric appliance is used as a leakage guide wire, the leakage current is directly connected to the electronic assembly board, the electromagnet is attracted through the electronic assembly board, the release is pulled out, and the button spring ejects the contact button to separate the power supply inlet end from the load end, so that the purpose of cutting off the power supply is achieved.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

Drawings

The present invention will be described in detail with reference to the accompanying drawings so that the above advantages of the present invention can be more clearly understood. Wherein,

fig. 1 is a schematic structural diagram of the leakage protection switch of the present invention;

fig. 2 is a schematic diagram of the working principle of the leakage protection switch of the present invention;

fig. 3 is a schematic diagram of the working principle of the leakage protection switch of the present invention;

fig. 4 is a schematic diagram of the working principle of the leakage protection switch of the present invention.

Detailed Description

The following detailed description will be made with reference to the accompanying drawings and examples, so as to solve the technical problems by applying technical means to the present invention, and to fully understand and implement the technical effects of the present invention. It should be noted that, as long as no conflict is formed, the embodiments and the features in the embodiments of the present invention may be combined with each other, and the technical solutions formed are all within the scope of the present invention.

As shown in fig. 1, a leakage protection switch includes: a bottom box (101), a power supply inlet port (102), namely a zero line terminal, a ground line terminal and a fire line terminal, wherein the zero line terminal, the ground line terminal and the fire line terminal are connected with a zero line load terminal (1021), a ground line load terminal (1022) and a fire line load terminal (1023) through a contact button (108), in addition, the zero line load terminal (1021), the ground line load terminal (1022) and the fire line load terminal (1023) are respectively led out a zero line, a leakage current guide line and a fire line to an electronic component board (103), the electronic component board outputs the zero line (104) and the fire line (105) to an electromagnet (106) through the control of the leakage current guide line, the electromagnet (106) is connected with the contact button (108) through a tripping locking device (107), a front cover (109) is arranged on the contact button (108), a button spring (110) is also arranged, and a front cover screw (111) is arranged, the electronic component board (103) is also provided with a test button (1031), wherein a spring is arranged in the electromagnet to always push against a tripping locking device when the leakage switch is intact and the tripping locking device (107) is inserted into the contact button (108) and is powered on when the contact button (108) is pressed;

Specifically, a common household appliance has an L-line, i.e., a live line, an N-line, i.e., a neutral line, and a ground line PE. When electrical apparatus (equipment) electric leakage takes place if the earth connection is effective certainly better, if zero line N load terminal inserts the zero line position N of electronic component board all the time in the earth leakage protection switch (see figure 2 in detail) that earth connection is inefficacy I design need not the ground connection, insert electronic component board live wire position L all the time to live wire L's load terminal, the utility model design of the earth connection of electrical apparatus (equipment) has become a water conservancy diversion line, the leading-in electronic component board of the electric current that leaks electricity, make its actuation after becoming the required voltage of electromagnetism release through the electronic component board, and make the release separation, thereby reach the mesh that cuts off the power.

The live wire can not directly be with the shell short circuit when the electric leakage takes place for the water heater of bathing especially, but leads into the shell with the electric current indirectly through water conductor, and if ground connection became invalid this moment, the electric current direct introduction human body just is more dangerous. More importantly, if the virtual connection of the grounding wire fails and the grounding wire is electrified, the common leakage switch can not act to trip and cut off the power supply at this time, and the switch designed by the inventor can achieve the purpose of automatically tripping and cutting off the power supply, so that the importance of the utility model can be highlighted, and a plurality of examples are seen in news.

With the same principle, the utility model design of the ground wire of the electric appliance (equipment) in fig. 3 is changed into an electric leakage guide wire, the electric current of the electric leakage is directly connected into the electromagnet to attract the electromagnet, and the release is separated from the contact button, thereby achieving the purpose of cutting off the power supply, and the utility model is particularly suitable for the condition that the live wire is easy to directly leak the electric current to the electric appliance (equipment).

Fig. 4 shows the same principle as the previous two methods, and the two methods can be used simultaneously to achieve double insurance.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A residual current circuit breaker, comprising: a bottom box (101), a power supply inlet port (102), namely a zero line terminal, a ground line terminal and a fire line terminal, wherein the zero line terminal, the ground line terminal and the fire line terminal are connected with a zero line load terminal (1021), a ground line load terminal (1022) and a fire line load terminal (1023) through a contact button (108), in addition, the zero line load terminal (1021), the ground line load terminal (1022) and the fire line load terminal (1023) are respectively led out a zero line, a leakage current guide line and a fire line to an electronic component board (103), the electronic component board outputs the zero line (104) and the fire line (105) to an electromagnet (106) through the control of the leakage current guide line, the electromagnet (106) is connected with the contact button (108) through a tripping locking device (107), a front cover (109) is arranged on the contact button (108), a button spring (110) is also arranged, and a front cover screw (111) is arranged, the electronic component board (103) is also provided with a test button (1031), wherein a spring is arranged in the electromagnet to always push against a tripping locking device when the leakage switch is intact and the tripping locking device (107) is inserted into the contact button (108) and is powered on when the contact button (108) is pressed;

when the accessed electric appliance has electric leakage, the electric leakage current is quickly led into the electronic assembly board (103) through the electric leakage current guide wire through the ground wire load terminal (1022) accessed by the electric appliance, the electronic assembly board (103) controls the electromagnet (106) to attract, the tripping locking device (107) is pulled out from the contact button (108), and the button spring (110) pushes out the contact button (108), so that the purpose of cutting off the power supply is achieved.

2. The earth leakage protection switch of claim 1, wherein the load terminal of the zero line N is always connected to the zero line position N of the electronic component board, the load terminal of the live line L is always connected to the live line position L of the electronic component board, the earth line of the electrical appliance is designed to be an earth leakage guide line, and the current leaked is guided to the electronic component board.