CN216981053U

CN216981053U - Leakage protection plug with arc protection device

Info

Publication number: CN216981053U
Application number: CN202220761465.9U
Authority: CN
Inventors: 张晓明; 聂胜云
Original assignee: Suzhou Ele Mfg Co ltd
Current assignee: Suzhou Ele Mfg Co ltd
Priority date: 2022-04-02
Filing date: 2022-04-02
Publication date: 2022-07-15
Anticipated expiration: 2032-04-02

Abstract

The utility model provides a leakage protection plug with an arc protection device, which comprises: the electric arc protection device comprises a shell, a movement assembly arranged in the shell, a power supply component coupled with the movement assembly and an electric arc protection device arranged between the movement assembly and the shell. The movement assembly includes a switch assembly having an input contact and an output contact, and an arc protection device isolates the input contact and the output contact of the switch assembly from the housing. The arc protection device includes at least one or more arc baffles, each arc baffle being disposed proximate a respective input contact and output contact to isolate the input contact and the output contact from the housing. According to the leakage protection plug, the arc protection device is arranged between the shell and the input contact and the output contact of the switch component, so that the damage of arcs generated in the working process of the input contact and the output contact of the switch component to the shell when the switch component is frequently disconnected is prevented, the use experience of a user is improved, and the leakage protection plug can be safely used.

Description

Leakage protection plug with arc protection device

Technical Field

The utility model relates to a circuit protection technology, in particular to an electric leakage protection plug with an arc protection device.

Background

With the increasing popularization of household appliances, people pay more and more attention to the use safety of the household appliances, and at present, many household appliances are equipped with an electric leakage protection device, such as an electric leakage protection plug. The existing leakage protection plug generally has the characteristics of compact structural design and closer contact to the shell, when the plug is frequently disconnected and operated, particularly in an on-load operation mode, the shell of the leakage protection plug is easily damaged by electric arcs, or a user can see electric arc and fire through the shell, so that the use experience of the user is reduced, the shell can be damaged seriously, and electric shock or fire is further caused.

SUMMERY OF THE UTILITY MODEL

In view of the above problems, the present invention provides an earth leakage protection plug with an arc protection device, comprising:

a housing;

a movement assembly disposed within the housing and including a switch component; and

a power supply component coupled with the movement assembly;

the arc protection device is arranged between the movement assembly and the shell and isolates an input contact and an output contact of the switch component from the shell; wherein the arc protection device comprises at least one or more arc baffles, each arc baffle being disposed proximate a respective one of the input contact and the output contact to isolate the input contact and the output contact from the housing.

In one embodiment, the arc protection device further comprises a body, and each arc baffle is connected with one side of the body at an angle.

In one embodiment, the arc baffle is made of a high temperature and arc resistant material.

In one embodiment, the arc protection device is integrally formed from a high temperature and arc resistant material.

In one embodiment, the arc protection device is arranged against an inner wall of the housing.

In one embodiment, the arc protection device is formed with a through hole through which the blade of the switching member passes.

In one embodiment, the arc protection device further has a through hole formed therein through which the reset member passes.

According to the utility model, the arc protection devices are arranged between the input contact and the output contact of the leakage protection plug switch component and the shell, so that the damage of the arc generated by the operation of the input contact and the output contact of the switch component to the shell when the switch component is frequently disconnected is prevented, the use experience of a user is improved, and the safe use of a product is ensured.

Drawings

Embodiments are shown and described with reference to the drawings. These drawings are provided to illustrate the basic principles and thus only show the aspects necessary for understanding the basic principles. The figures are not to scale. In the drawings, like reference numerals designate similar features.

Fig. 1a, 1b are general views of a residual current device plug with arc protection according to the present invention;

FIG. 2 shows an exploded schematic view of the earth leakage protection plug of FIG. 1a with an arc protection device; and

fig. 3 is a schematic view of the assembly of the arc protection device with the movement assembly.

Detailed Description

In the following detailed description of the preferred embodiments, reference is made to the accompanying drawings which form a part hereof. The accompanying drawings illustrate, by way of example, specific embodiments in which the utility model may be practiced. The illustrated embodiments are not intended to be exhaustive of all embodiments according to the utility model. It is to be understood that other embodiments may be utilized and structural or logical changes may be made without departing from the scope of the present invention. The following detailed description, therefore, is not to be taken in a limiting sense, and the scope of the present invention is defined by the appended claims.

Before describing embodiments of the present invention, some terms referred to in the present invention are first explained to better understand the present invention.

As used herein, the terms "connected," "coupled," or "coupled," and similar terms are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The terms "a," "an," "a," or "the" and similar terms do not denote a limitation of quantity, but rather denote the presence of at least one.

As used herein, the terms "include," "include," and similar terms are to be construed as open-ended terms, i.e., "including/including but not limited to," meaning that additional content can be included as well. The term "based on" is "based, at least in part, on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment," and so on.

The utility model mainly focuses on the following technical problems: how to improve the safety of the leakage protection plug and prevent the damage of electric arcs to the leakage protection plug and possible electric shock or fire and other consequences.

In order to solve the above problems, according to the present general inventive concept, there is provided a leakage protection plug having an arc protection device, including: the arc protection device comprises a shell, a movement assembly arranged in the shell, a power supply component coupled with the movement assembly and an arc protection device arranged between the movement assembly and the shell. The movement assembly includes a switch assembly having an input contact and an output contact, and an arc protection device isolates the input contact and the output contact of the switch assembly from the housing. The arc protection device includes at least one or more arc baffles, each arc baffle being disposed proximate a respective input contact and output contact to isolate the input contact and the output contact from the housing.

Referring first to fig. 1a, 1b and 2, an earth leakage protection plug according to a preferred embodiment of the present invention is shown, wherein fig. 1a and 1b are a front perspective view and a bottom perspective view of the earth leakage protection plug, respectively, and fig. 2 is an exploded schematic view of the earth leakage protection plug. As shown in fig. 1 a-2, the earth leakage protection plug includes a housing upper cover 1, a movement assembly 3, a power supply unit 8, a housing bottom cover 6, a housing rear cover 7, and an arc protection cover 4 disposed between the movement assembly 3 and the housing. In the illustrated embodiment, the housing includes a housing upper cover 1, a housing lower cover 6, and a housing rear cover 7 that are connected together by fasteners (e.g., screws 9), wherein the housing lower cover 6 and the housing rear cover 7 may also be formed as one body to constitute a housing lower cover. The housing bottom cover 6 is provided with openings so that the N plug blades 301, the L plug blades 302 and the ground plug blades protrude outside the housing.

According to the utility model, an arc protection device 5 is advantageously arranged between the core assembly 3 and the housing. The movement assembly 3 includes a coil, a leakage detecting circuit, a driving structure, a switch part, and a reset part 310. Specifically, the coil, the leakage detection circuit and the driving structure are used for driving the input contact and the output contact of the switch component to be closed or opened so as to realize the on-off of the circuit.

In the present embodiment, as shown in fig. 3, the input contacts and the output contacts of the switch member include an L-side input contact 303 and an L-side output contact 304, and an N-side input contact 305 and an N-side output contact 306. The arc protection device 5 serves to isolate the above-mentioned

contacts

303, 304, 305, 306 of the switching components from the housing.

Specifically, referring to fig. 2 and 3, in the present embodiment, the arc protection device 5 includes a body 510 and at least two arc baffles 520, wherein the two arc baffles 520 are symmetrically disposed on two sides of the body 510. One arc baffle 520 is adjacent to the L-side input and

output contacts

303, 304 and the other arc baffle (not shown) is adjacent to the N-side input and

output contacts

305, 306, whereby both pairs of contacts are spaced from the housing.

In the present embodiment, the two arc baffles 520 are made of high temperature and arc resistant material, and the body 510 may be made of other insulating material. An arc may be generated when the coil, the leakage detection circuit and the driving structure of the core assembly 3 cooperate to drive the two pairs of contacts open. Based on the disclosed leakage protection plug, the arc protection device 5 can coat the engine core assembly 3, and the generated arc is isolated from the shell by the arc baffle 520 of the arc protection device 5, so that the shell is prevented from being damaged by the arc, or a user can observe arc light through the shell when using the leakage protection plug; therefore, the use safety of the product and the use experience of the user are improved.

Further, as shown in fig. 3, the disclosed arc protection device 5 further includes through

holes

511 and 512 through which the neutral (N) plug blade 301 and the hot (L) plug blade 302 of the movement assembly 3 pass, and a through hole 513 through which the reset means 310 passes.

In addition, in a preferred embodiment, the arc protection device 5 can be arranged against the inner wall of the housing and have a certain thickness, whereby damage to the housing by an arc can be prevented at least by the properties of the material itself and the thickness of the arc baffle 520 of the arc protection device 5. Specifically, the thickness of arc baffle 520 is determined by the dimensions of the housing and engine assembly.

In other preferred embodiments, the body 510 and the arc baffle 520 of the arc protection device 5 may be integrally formed of a high temperature and arc resistant material.

The leakage protection plug disclosed by the utility model has the advantages of simple circuit structure, low cost, convenience in installation and the like. The arc protection device can be correspondingly changed according to the structure of the leakage protection plug which is actually applied, and the application is wide.

While the technical content and the technical features of the utility model have been disclosed, it is understood that various changes and modifications of the disclosed concept can be made by those skilled in the art within the spirit of the utility model, and the utility model is not limited thereto. The above description of embodiments is intended to be illustrative, and not restrictive, and the scope of the utility model is defined by the appended claims.

Claims

1. A residual current protection plug having an arc protection device, comprising:

a housing;

a deck assembly disposed within the housing and including a switch component; and

a power supply component coupled with the deck assembly;

the arc protection device is arranged between the movement assembly and the shell and isolates an input contact and an output contact of the switch component from the shell;

wherein the arc protection device comprises at least one or more arc baffles, each arc baffle being disposed proximate to a respective one of the input contact and the output contact to isolate the input contact and the output contact from the housing.

2. A residual current protective plug with an arc protection device according to claim 1, characterized in that said arc protection device further comprises a body, each of said arc baffles being connected at an angle to a respective side of said body.

3. A residual current protective plug with an arc protection device according to claim 1 or 2, characterized in that said arc baffle is made of a high temperature and arc resistant material.

4. A residual current protective plug with an arc protection device according to claim 2, characterized in that said arc protection device is integrally formed of a high temperature and arc resistant material.

5. A residual current protection plug with an arc protection device according to claim 1 or 2, characterized in that the arc protection device is arranged against an inner wall of the housing.

6. A residual current protection plug with an arc protection device according to claim 1, characterized in that the arc protection device is formed with a through hole for passing the blade of the switch component.

7. A residual current protection plug with an arc protection device according to claim 6, characterized in that the arc protection device is further formed with a through hole for passing the resetting member.