WO2021146822A1

WO2021146822A1 - Socket arc-extinguishing structure

Info

Publication number: WO2021146822A1
Application number: PCT/CN2020/000203
Authority: WO
Inventors: 严华; 陈彬; 蔡苏丰
Original assignee: 江苏通领科技有限公司
Priority date: 2020-01-21
Filing date: 2020-09-02
Publication date: 2021-07-29
Also published as: CN211428504U

Abstract

A socket arc-extinguishing structure, in which a plug-in sleeve (7) is arranged below each jack (5, 6). The plug-in sleeve (7) can be in contact with both sides of the thickness of a blade (9) of a plug to form an electrical connection, and the plug-in sleeve (7) is also electrically connected to an extension piece (72); a sliding block (8) made of an insulating material is provided on both sides of each plug-in sleeve (7), and each sliding block (8) can interfere with the width direction of the blade (9) by means of an inclined surface so as to move; each sliding block (8) is connected to a metal elastic piece (10), so that the lower end of the metal elastic piece (10) can move; among two metal elastic pieces (10) corresponding to each plug-in sleeve (7), one of the metal elastic pieces (10) is referred to as a power acquisition elastic piece (101), and the other one can be in conductive contact with the extension piece (72) of the plug-in sleeve (7) so as to be referred to as a power transmission elastic piece (102); the power acquisition elastic piece (101) below the positive jack (5) is conductively connected to the power transmission elastic piece (102) below the negative jack (6), and the power transmission elastic piece (102) in the positive jack (5) is conductively connected to the power acquisition elastic piece (101) in the negative jack (6). By means of the described structure, the electric arc generated when a plug is plugged in and plugged out can be significantly eliminated or reduced.

Description

Socket arc extinguishing structure

Technical field

The invention relates to a socket structure, in particular to a socket arc extinguishing structure.

Background technique

Current sockets generally do not have an arc extinguishing structure. When the plug of the plug is inserted into the socket to form an electrical circuit, an arc will be generated. When the plug is pulled out to disconnect the electrical circuit, an arc will also be generated, so there is a safety hazard.

The application of the existing DC power sockets is becoming more and more common. Compared with AC power sockets (compared under the same voltage), the arc phenomenon is more serious. Therefore, when plugging in, you need to turn off the power switch of the socket first, and then Insert the plug and turn on the power switch of the socket. The DC power socket needs to be disconnected from the power supply to be able to plug and unplug the socket, which has caused a great obstacle to the convenience of use and severely restricted the application of the DC power socket.

Summary of the invention

The purpose of the present invention is to provide a socket arc extinguishing structure to avoid or reduce the generation of arcs and improve safety and convenience.

In order to achieve the above objective, the technical solution adopted by the present invention is:

A socket arc extinguishing structure. The socket is also provided with a pair of positive and negative jacks for inserting the two inserts of the plug to obtain electricity. A power terminal is provided under the positive and negative jacks. , Which is characterized by:

A socket is arranged below the positive socket and the negative socket, the socket can contact with both sides of the thickness of the socket to form an electrical connection, and the socket is also electrically connected with an extension piece;

A slider made of insulating material is arranged on both sides of each insert sleeve. Each slider can interfere with the width direction of the insert through the inclined plane, so that the slider moves away from the insert. ；

Each slider is connected with a metal shrapnel so that the lower end of the metal shrapnel can move. Of the two metal shrapnels corresponding to each socket, the lower end of one of the metal shrapnels can be electrically contacted with the power terminal after moving. The power-fetching shrapnel, the lower end of the other metal shrapnel can be in conductive contact with the extension piece of the socket after being moved, and it is called the power-transmitting shrapnel;

The power supply shrapnel under the positive jack is conductively connected with the power supply shrapnel under the negative jack, and the power supply shrapnel in the positive jack is conductively connected with the power supply shrapnel in the negative jack.

In the arc extinguishing structure of the socket, the plug sleeve has an electric clip that is relatively elastically kneaded, and the electric clip can contact with both sides of the thickness of the plug to form an electrical connection.

In the arc extinguishing structure of the socket, the extension piece is formed by integrally extending from the electric clip.

In the socket arc extinguishing structure, wherein: the lower end of the power take-off shrapnel is provided with shrapnel contacts, and the power terminals are correspondingly provided with power contacts.

The arc extinguishing structure of the socket, wherein: the lower end of the power transmission elastic piece is provided with an elastic piece contact, and the extension piece is correspondingly provided with a socket contact.

The arc extinguishing structure of the socket, wherein: the inclined surface is formed on the side of the slider close to the width direction of the insert or the inclined surface is formed on the side of the width direction of the insert close to the slider .

The arc extinguishing structure of the socket, wherein: the inclined surface is provided in the width direction of the insert piece and on the side close to each other on the sliding block.

The arc extinguishing structure of the socket, wherein: the power-taking shrapnel under the positive socket and the power-transmitting shrapnel under the negative-electrode socket form an integrated structure through the upper connecting piece, and the power-transmitting shrapnel in the positive socket is connected to the one in the negative socket. The power-taking elastic sheet forms an integrated structure through another connecting sheet at the upper end.

The arc extinguishing structure of the socket, wherein: the socket is an alternating current socket.

The arc extinguishing structure of the socket, wherein: the socket is a direct current socket.

When the present invention is used, when the insert piece of the plug is in contact with the insert sleeve, the insert sleeve is not charged, so no arc is generated, and the plug continues to be inserted, so that the power take-off shrapnel and the power terminal are electrically connected, and the power transmission shrapnel and the socket are electrically connected , The circuit is connected, the plug and the socket are in close contact at this time, and no arc is generated; when the plug is pulled out of the socket, the circuit is also disconnected first, and then the plug of the plug and the socket are out of contact. No arc is generated; in this way, the safety of the use of socket products (especially DC sockets) is improved.

Description of the drawings

Figure 1 is a schematic diagram of an exploded structure of a socket of the present invention;

Figure 2 and Figure 3 are schematic diagrams of the slider action before and after the insert is inserted into the insert sleeve;

Figure 4 is a schematic diagram of the circuit connection formed after two inserts are inserted (the connecting piece in the figure is only schematic);

Figure 5 is a schematic diagram of the structure of the slider;

Figure 6 is a schematic diagram of the structure of the insert sleeve;

Figure 7 is a schematic diagram of the coordinated installation of a pair of sliders and an insert sleeve;

Fig. 8 is a schematic diagram of an electrical connection formed by inserting the insert into the insert sleeve (the viewing direction of Fig. 2 is perpendicular to each other).

Description of Reference Signs: upper shell 1; middle shell 2; lower shell 3; power terminal 4; power contact 41; positive jack 5; negative jack 6; plug sleeve 7; electric clip 71; extension piece 72; plug sleeve Contact 721; Slider 8; Bevel 81; Insert 9; Metal Shrapnel 10; Electric Shrapnel 101; Power Transmission Shrapnel 102; Connecting Piece 103; Shrapnel Contact 104.

Detailed ways

As shown in Figures 1 to 4, it is a schematic diagram of the exploded structure of the socket with the socket arc extinguishing structure provided by the present invention, including a shell structure composed of an upper shell 1, a middle shell 2, and a lower shell 3 to form the structure of the socket The main body, the housing is provided with positive and negative power terminals 4, and the housing is provided with a pair of positive jacks 5 and negative jacks 6 for inserting two inserts 9 of the plug for power;

A plug sleeve 7 is arranged below the positive jack 5 and the negative jack 6 (refer to FIG. 6). Each plug sleeve 7 has an electric clip 71 that is relatively elastically kneaded. The electric clip 71 can be connected to the plug 9 The two sides of the thickness contact to form an electrical connection. In this embodiment, the socket 7 is also integrally connected with an extension piece 72, and a socket contact 721 is formed on the extension piece 72;

A slider 8 made of insulating material is arranged on both sides of each insert sleeve 7, and each slider 8 has an inclined surface 81 that can interfere with the width direction of the insert 9 Before the insert piece 9 is completely inserted into the insert sleeve 7, the lower end of the insert piece 9 interferes with the inclined surface 81, so that the slider 8 can move away from the insert piece 9 with respect to the housing (of course, you can also move The inclined surface is arranged on the insert piece 9, or the inclined surface is arranged on both the insert piece 9 and the slider 8, which will not be repeated here);

Each slider 8 is connected with a metal spring 10, and of the two metal springs 10 corresponding to each insert sleeve 7, the lower end of one of the metal springs 10 can be in conductive contact with the power terminal 4 and is called the power take-off spring 101. The lower end of the other metal shrapnel 10 can be in conductive contact with the socket contact 721 of the socket 7 and is called the power transmission shrapnel 102. Moreover, as shown in FIG. 1 and FIG. The shrapnel 101 and the power transmitting shrapnel 102 corresponding to the negative jack 6 form an integrated structure through the upper connecting piece 103, and the power transmitting shrapnel 102 corresponding to the positive jack 5 and the power taking shrapnel 101 corresponding to the negative jack 6 are connected through another upper end. Sheet 103 constitutes an integrated structure;

Among them, as shown in FIGS. 2 to 4, a spring contact 104 is provided at the lower end of the metal spring 10 to facilitate the formation of a conductive contact with the power contact 41 on the power terminal 4 and the socket contact 721 on the extension sheet 72. catch.

The present invention is set up as follows:

Before the insert 9 enters the socket, as shown in FIG. 2, the elastic contact 104 of each metal dome 10 is normally separated from the power contact 41 on the power terminal 4 and the socket contact 721 on the extension piece 72. , Each socket 7 is not charged; at this time, if a child holds a metal rod into the positive socket 5 or negative socket 6, there will be no electric shock accidents, which has a high degree of safety;

When the two blades 9 of the plug are inserted into the socket, the blade 9 and the socket 7 come into contact, but because the plug is not charged, there will be no arc, the blade 9 continues to be inserted into the socket, both sides of the width of the blade 9 Interference with the inclined surface 81 of the slider 8 to cause the slider 8 to drive the metal shrapnel 10 to deform. The shrapnel contact 104 at the lower end of the metal shrapnel 10, the power contact 41 on the power terminal 4 and the socket contact on the extension piece 72 721 forms a conductive contact, and the circuit starts to conduct at this time. However, since the insert 9 has already contacted the plug at this time, no arc will be generated; stepping back, even if there is an arc, due to a pair of positive and negative power terminals 4 There are six electrical contact positions formed between them, and the six electrical contact positions basically form electrical connections at the same time, which can disperse the arc and significantly reduce the arc;

When the plug is pulled out of the socket, it is acted by the elastic restoring force of the metal dome 10, the dome contact 104 at the lower end of the metal dome 10 and the power contact 41 on the power terminal 4 and the socket contact 721 on the extension piece 72 go first After separation, the slider 8 is reset so that the plug sleeves 7 are no longer charged, and then the plug blade 9 of the plug is completely separated from the uncharged plug sleeve 7, and there will be no arc generation, or the arc generation can be significantly reduced.

The above description is only illustrative rather than restrictive for the present invention. Those of ordinary skill in the art understand that many modifications, changes or equivalents can be made without departing from the spirit and scope defined by the claims, but All will fall within the protection scope of the present invention.

Claims

A socket arc extinguishing structure. The socket is also provided with a pair of positive and negative jacks for inserting the two inserts of the plug to obtain electricity. A power terminal is provided under the positive and negative jacks. , Which is characterized by:

A socket is arranged below the positive socket and the negative socket, the socket can contact with both sides of the thickness of the socket to form an electrical connection, and the socket is also electrically connected with an extension piece;

A slider made of insulating material is arranged on both sides of each insert sleeve. Each slider can interfere with the width direction of the insert through the inclined plane, so that the slider moves away from the insert. ；

Each slider is connected with a metal shrapnel so that the lower end of the metal shrapnel can move. Of the two metal shrapnels corresponding to each socket, the lower end of one of the metal shrapnels can be electrically contacted with the power terminal after moving. The power-fetching shrapnel, the lower end of the other metal shrapnel can be in conductive contact with the extension piece of the socket after being moved, and it is called the power-transmitting shrapnel;

The power-taking shrapnel under the positive jack is conductively connected with the power-transmitting shrapnel under the negative jack, and the power-transmitting shrapnel in the positive jack is conductively connected with the power-taking shrapnel in the negative jack.
The socket arc extinguishing structure according to claim 1, wherein the plug sleeve has an electric clip that is relatively elastically kneaded, and the electric clip can contact with both sides of the thickness of the plug to form an electrical connection.
The socket arc extinguishing structure according to claim 2, wherein the extension piece is formed by integrally extending from the electric clip.
The socket arc extinguishing structure according to claim 1, wherein the lower end of the power take-off shrapnel is provided with shrapnel contacts, and the power terminals are correspondingly provided with power contacts.
The socket arc extinguishing structure according to claim 1, wherein the lower end of the power transmission elastic piece is provided with an elastic piece contact, and the extension piece is correspondingly provided with a socket contact.
The socket arc extinguishing structure according to claim 1, wherein the inclined surface is formed on the side of the slider close to the width direction of the insert; or, the inclined surface is formed close to the width direction of the insert. One side of the slider.
The socket arc extinguishing structure according to claim 1, wherein the inclined surface is provided in the width direction of the insert piece and on the side close to each other on the sliding block.
The arc extinguishing structure of the socket according to claim 1, characterized in that: the power-taking shrapnel under the positive jack and the power-transmitting shrapnel under the negative-electrode jack form an integrated structure through the upper connecting piece, and the power-transmitting shrapnel in the positive jack It forms an integral structure with the power-taking elastic piece in the negative jack through another connecting piece at the upper end.
The arc extinguishing structure of the socket according to claim 1, wherein the socket is an alternating current socket.
The arc extinguishing structure of the socket according to claim 1, wherein the socket is a direct current socket.