CN212010880U

CN212010880U - Quick-break device for leakage of electricity

Info

Publication number: CN212010880U
Application number: CN202020080319.0U
Authority: CN
Inventors: 王彬先
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-01-15
Filing date: 2020-01-15
Publication date: 2020-11-24
Anticipated expiration: 2030-01-15

Abstract

The utility model discloses an electric leakage quick-break ware, include: casing, circuit breaker, ejector pin, electromagnet coil and magnet spring encapsulation are in inside the casing, the ejector pin is located between circuit breaker and the electromagnet coil, the ejector pin is used for taking place the stroke and leads to the circuit breaker disconnection, the ejector pin is fixed in electromagnet coil one end, the electromagnet coil other end is connected the magnet spring, the magnet spring is used for maintaining the ejector pin is located initial position and receives electromagnet coil adsorbs the production rebound shape become the ejector pin takes place the stroke and provides power. A electric leakage quick-break ware can cut off the leakage current in 0.2 seconds, does not have malfunction durable, the stroke of ejector pin is simple quick, can realize ejector pin linear displacement, the circuit breaker response is sensitive, the disconnection can all be responded to the small leakage current below 30 milliamperes.

Description

Quick-break device for leakage of electricity

Technical Field

The utility model belongs to the earth leakage protection field especially relates to an electric leakage quick-break ware.

Background

The leakage circuit breaker is mainly used for protecting the electric shock of a person with fatal danger when equipment has leakage faults, has the functions of overload and short circuit protection, and can be used for protecting the overload and short circuit of a line or a motor. The existing residual current circuit breaker has the following defects: the sensitivity is not enough, and the response time is long; the protection current is large; the durability is poor.

SUMMERY OF THE UTILITY MODEL

To the above problem, the utility model provides a quick disconnected ware of electric leakage all can protect to big or small electric current, can protect the electric current below the 30 milliamperes, and the leak current is cut off in action time 0.2 seconds, does not have the malfunction, durable. In order to achieve the above object, the utility model adopts the following technical scheme:

an electrical leakage quick-disconnect comprising: casing, circuit breaker, ejector pin, electromagnet coil and magnet spring encapsulation are in inside the casing, the ejector pin is located between circuit breaker and the electromagnet coil, the ejector pin is used for taking place the stroke and leads to the circuit breaker disconnection, the ejector pin is located electromagnet coil one end, the electromagnet coil other end is equipped with the magnet spring, the ejector pin with magnet spring connects, the magnet spring is used for maintaining the ejector pin is located initial position and receives electromagnet coil adsorbs production rebound shape becomes the ejector pin takes place the stroke and provides power.

Preferably, one end of the circuit breaker is electrically connected with a load, the other end of the circuit breaker is electrically connected with a power supply circuit, one end of the electromagnet coil is electrically connected with a zero line, the other end of the electromagnet coil is electrically connected with a load bonding wire, and when the load generates leakage current, the electromagnet coil is used for inducing the leakage current through the load bonding wire and generating attraction force on the magnet spring.

The optimization effect that this preferred scheme brought is that the electro-magnet coil can in time respond to and make the ejector pin take place the stroke through the magnet spring when making the load produce the leakage current, and then the disconnection switch.

More preferably, the load bond wire is a wire with a cross-section of 2.5 square millimeters.

Preferably, one end of the magnet spring close to the electromagnet coil is a movable end, and the other end of the magnet spring is fixed in the shell.

Preferably, a fixing member for fixing the leakage interrupter by a screw is provided outside the case.

The optimization effect brought by the optimal scheme is that the electric leakage quick breaker is conveniently and flexibly installed in each use scene.

Compared with the prior art, the beneficial effects of the utility model are that:

a electric leakage quick-break ware can cut off the leakage current in 0.2 seconds, does not have malfunction durable, the stroke of ejector pin is simple quick, can realize ejector pin linear displacement, the circuit breaker response is sensitive, the disconnection can all be responded to the small leakage current below 30 milliamperes.

Drawings

Fig. 1 is a schematic structural diagram of a leakage quick-break device according to the present invention.

Fig. 2 is a schematic diagram of an external structure of a casing of the quick earth leakage breaker of the present invention.

Wherein, 1, a shell; 2. a cut-off switch; 3. a top rod; 4. an electromagnet coil; 5. a magnet spring; 6. and a fixing member.

Detailed Description

For a better understanding of the present invention, the contents of the present invention will be further clarified below with reference to the accompanying drawings and examples, but the present invention is not limited to the following examples.

Examples

An electrical leakage quick-disconnect comprising: casing 1, circuit breaker 2, ejector pin 3, electro-magnet coil 4 and magnet spring 5 encapsulate inside casing 1, ejector pin 3 is located between circuit breaker 2 and the electro-magnet coil 4, ejector pin 3 is used for taking place the stroke and leads to the disconnection of circuit breaker 2, ejector pin 3 is located electro-magnet coil 4 one end, electro-magnet coil 4 other end is equipped with magnet spring 5, ejector pin 3 is connected with magnet spring 5, magnet spring 5 is used for maintaining ejector pin 3 and is located initial position and receives the absorption of magnet coil 4 and produce the rebound shape and become ejector pin 3 and take place the stroke and provide power.

One end of the circuit breaker 2 is electrically connected with a load, the other end of the circuit breaker is electrically connected with a power supply circuit, one end of the electromagnet coil 4 is electrically connected with a zero line, the other end of the electromagnet coil is electrically connected with a load bonding wire, and when the load generates leakage current, the electromagnet coil 4 is used for inducing leakage current through the load bonding wire and generating attraction force on the magnet spring 5. The load bond wire is a wire with a cross section of 2.5 square millimeters. One end of the magnet spring 5 close to the electromagnet coil 4 is a movable end, and the other end is arranged in the shell.

The fixing member 6 is provided outside the case 1, and the fixing member 6 is used for fixing the leakage quick-break by a screw.

The working principle of the electric leakage quick breaker in this embodiment is as follows:

under the condition that the load normally works and no electric leakage exists, the ejector rod 3 and the magnet spring 5 are located at the initial positions, the circuit breaker 2 is in a closed state, and no current passes through the electromagnet coil 4.

When a load generates leakage current, the leakage current passes through the electromagnet coil 4, the electromagnet coil 4 adsorbs the magnet spring 5, the magnet spring 5 deforms towards the electromagnet coil 4 to push the ejector rod 3, and the ejector rod 3 generates stroke, namely, displacement is generated to disconnect the circuit breaker 2. After the circuit breaker 2 is disconnected, the load is powered off, no current passes through the electromagnet coil 4, the magnet spring 5 is reset, and the ejector rod 3 and the magnet spring 5 are restored to the initial positions.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An electrical leakage quick disconnect, comprising: casing, circuit breaker, ejector pin, electromagnet coil and magnet spring encapsulation are in inside the casing, the ejector pin is located between circuit breaker and the electromagnet coil, the ejector pin is used for taking place the stroke and leads to the circuit breaker disconnection, the ejector pin is located electromagnet coil one end, the electromagnet coil other end is equipped with the magnet spring, the ejector pin with magnet spring connects, the magnet spring is used for maintaining the ejector pin is located initial position and receives electromagnet coil adsorbs production rebound shape becomes the ejector pin takes place the stroke and provides power.

2. A quick disconnect device for electric leakage according to claim 1, wherein said circuit breaker is electrically connected to a load at one end and a power supply circuit at the other end, and said electromagnet coil is electrically connected to a neutral wire at one end and a load bond wire at the other end, and when a leakage current occurs in the load, said electromagnet coil is used to induce said leakage current through said load bond wire and generate a suction force to said magnet spring.

3. A leakage quick-disconnect as claimed in claim 2 wherein the load bond wire is a wire having a cross-section of 2.5 square millimeters.

4. An electrical leakage quick-break apparatus as claimed in claim 1, wherein one end of said magnet spring close to said electromagnet coil is a movable end, and the other end is fixed inside said housing.

5. An electric leakage quick-break device as claimed in claim 1, wherein a fixing member is provided outside said housing, said fixing member being adapted to fix said electric leakage quick-break device by means of a screw.