Power connection equipment with arc extinguishing capability

Abstract

The utility model relates to a power connection device with arc extinguishing capability, which comprises a plug and a socket, the plug comprises a first conductive column and a second conductive column, and the socket comprises a first conductive seat sheet and a second conductive seat sheet which are respectively connected with a wire outlet end and a wire inlet end. The first conductive column and the second conductive column are inserted into and abut against the first conductive seat piece and the second conductive seat piece respectively or are pulled away from the first conductive seat piece and the second conductive seat piece, and an arc striking structure and an arc extinguishing structure are arranged in the space of the opposite sides of the first conductive seat piece and the second conductive seat piece and comprise a left part and a right part. An arc insulation plate is arranged between the left and right arc striking structures, and the left and right parts of the arc striking structures and the arc extinguishing structures are symmetrically arranged relative to the arc insulation plate. The arc striking sheet and the arc extinguish chamber are additionally arranged in the power connection equipment, the arc striking sheet leads out the generated arc to prevent the arc from corroding the conductive seat sheet, the led-out arc is guided into the arc extinguish chamber by the arc striking sheet, and the arc extinguish chamber cuts the arc to reduce the inter-arc voltage until the arc is extinguished.

Description

Technical Field

[0001] The utility model belongs to the technical field of power connection equipment, and more specifically relates to a power connection equipment with arc extinguishing capability. Background Art

[0002] In electrical engineering, when the voltage between two conductors breaks through the air layer to form an arc, the air will produce a large number of electrons after the arc is formed, and the conductivity will increase rapidly. Even if the distance between the two conductors continues to increase, the arc cannot be extinguished. This phenomenon is called arc pulling.

[0003] In the process of connecting and disconnecting the power of ordinary power connection equipment, because the copper sheets are in charged contact and separation, arcs or even sparks will be generated at the moment of plugging and unplugging, which can easily cause electric shock accidents or even current breakdown problems. In certain occasions, such as places with flammable gases such as gas, oil and gas in the air, fires or even explosions will occur, which are extremely dangerous. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the utility model provides a power connection device with arc extinguishing capability. The arc extinguishing structure can prevent arcing when the socket is in the on and off state, thereby preventing the insulation performance of electrical appliances and equipment from being reduced.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A power connection device with arc extinguishing capability comprises a plug and a socket, wherein the plug comprises a first conductive column and a second conductive column, and the socket comprises a first conductive seat plate and a second conductive seat plate, wherein the first conductive seat plate and the second conductive seat plate are respectively connected to an outlet terminal or an inlet terminal, wherein the first conductive column and the second conductive column are respectively inserted into and abut against the first conductive seat plate and the second conductive seat plate or are pulled out from the first conductive seat plate and the second conductive seat plate, wherein an arc striking structure and an arc extinguishing structure are arranged in a space on one side opposite to the first conductive seat plate and the second conductive seat plate, wherein the arc striking structure and the arc extinguishing structure comprise left and right parts, wherein an arc extinguishing plate is arranged in the middle of the arc striking structure of the left and right parts, and wherein the left and right parts of the arc striking structure and the arc extinguishing structure are symmetrically arranged relative to the arc extinguishing plate.

[0007] Furthermore, the socket ends of the first conductive seat and the second conductive seat are both bent inwardly to form an arc structure, and the arc-starting structure is located outside the inwardly bent arc structure.

[0008] Furthermore, the arc-striking structure is an arc-striking sheet.

[0009] Furthermore, an arc extinguishing structure is provided at the end of the arc striking structure, and the arc extinguishing structure is an arc extinguishing chamber.

[0010] Furthermore, the arc extinguishing chamber is composed of 4 arc extinguishing grids, the interval between each arc extinguishing grid is 1 mm, and the size of the arc extinguishing chamber is: 7 mm×15.5 mm×13.5 mm.

[0011] Furthermore, the arc extinguishing grid of the arc extinguishing chamber (11) has a Y-shaped notch, and the end of the arc striking piece (10) is located at the Y-shaped notch of the arc extinguishing chamber (11).

[0012] The beneficial effect of the utility model is that when the power connection device is powered on and off, an arc will be generated between the conductive column and the conductive seat. By adding an arc-starting piece and an arc-extinguishing chamber structure in the power connection device, the arc-starting piece will lead out the generated arc to prevent the arc from corroding the conductive seat. The led arc is guided by the arc-starting piece to the Y-shaped notch in the arc-extinguishing chamber. The arc-extinguishing chamber cuts the arc through the arc-extinguishing grid, reducing the arc voltage until the arc is extinguished. This greatly avoids arcing caused by the equipment and the reduction of the insulation performance of the electrical appliances and equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the cross-sectional structure of the power connection device of the utility model;

[0014] Figure 2 It is a schematic diagram of the arc extinguishing chamber structure of the utility model;

[0015] Figure 3 This is a three-dimensional structural diagram of the arc extinguishing chamber of the utility model;

[0016] Among them, 1. plug; 2. socket; 3. first conductive column; 4. second conductive column; 5. first conductive seat; 6. second conductive seat; 7. outlet terminal; 8. inlet terminal; 9. arc-isolating plate; 10. arc-starting plate; 11. arc-extinguishing chamber; 12. arc-extinguishing grid; 13. mounting plate; 14. mounting cam. DETAILED DESCRIPTION

[0017] The embodiments of the present utility model are further described below in conjunction with the accompanying drawings.

[0018] like Figure 1 and Figure 3As shown, a power connection device with arc extinguishing capability includes a plug 1 and a socket 2, the plug 1 includes a first conductive column 3 and a second conductive column 4, the socket 2 includes a first conductive seat 5 and a second conductive seat 6, the first conductive seat 5 and the second conductive seat 6 are respectively connected to the outlet terminal 7 and the inlet terminal 8, the first conductive column 3 and the second conductive column 4 are respectively inserted into and abutted against the first conductive seat 5 and the second conductive seat 6 or are pulled out from the first conductive seat 5 and the second conductive seat 6, an arc-striking structure and an arc-extinguishing structure are arranged in the space on the opposite side of the first conductive seat 5 and the second conductive seat 6, the arc-striking structure and the arc-extinguishing structure include left and right parts, an arc-extinguishing plate 9 is arranged in the middle of the arc-striking structure of the left and right parts, and the left and right parts of the arc-striking structure and the arc-extinguishing structure are symmetrically arranged relative to the arc-extinguishing plate 9.

[0019] The socket ends of the first conductive seat 5 and the second conductive seat 6 are both bent inward to form an arc-shaped structure, and the arc-striking structure is located outside the inwardly bent arc-shaped structure. The arc-striking structure is an arc-striking plate 10, and an arc-extinguishing chamber 11 is arranged at the end of the arc-striking plate 10. The arc-extinguishing chamber 11 is composed of 4 arc-extinguishing grids 12, and each arc-extinguishing grid 12 is respectively provided with 1-2 pairs of mounting protrusions 14 above and below. The arc-extinguishing grid 12 is fixed on the mounting plate 13 through the mounting protrusions 14, wherein the interval between each arc-extinguishing grid 12 is 1mm, and the size of the arc-extinguishing chamber is: 7mm×15.5mm×13.5mm. The arc-extinguishing grid has a Y-shaped notch, and the end of the arc-striking plate 10 is located at the Y-shaped notch of the arc-extinguishing chamber 11.

[0020] When the conductive column and the conductive seat of the power connection equipment are at the critical point of contact and separation, current will be generated between the two. This phenomenon is caused by the current breaking through the air to generate an arc; due to the action of the arc-starting plate, the generated arc will be attracted to the arc-starting plate for conduction; the end of the arc-starting plate is adjacent to the arc-extinguishing chamber, and the conducted arc enters the arc-extinguishing chamber. The arc-extinguishing chamber divides the arc through the arc-extinguishing grid, reducing the arc voltage until the arc is extinguished; the arc-isolating plate separates the arcs generated by the incoming and outgoing ends to prevent short circuits.

[0021] The above description is only a preferred embodiment of the present utility model, and does not limit the patent scope of the present utility model. Any equivalent structural transformation made using the contents of the present utility model specification, or directly or indirectly applied to the technical field attached to other related products, are also included in the patent protection scope of the present utility model.

Claims

1. A power connection device with arc extinguishing capability, comprising a plug (1) and a socket (2), wherein the plug (1) comprises a first conductive column (3) and a second conductive column (4), and the socket (2) comprises a first conductive seat (5) and a second conductive seat (6), wherein the first conductive seat (5) and the second conductive seat (6) are respectively connected to an outlet terminal (7) and an inlet terminal (8), and wherein the first conductive column (3) and the second conductive column (4) are respectively inserted into and abut against the first conductive seat (5) and the second conductive seat (6) or are pulled out from the first conductive seat (5) and the second conductive seat (6), characterized in that: An arc-striking structure and an arc-extinguishing structure are arranged in a space on one side opposite to the first conductive seat plate (5) and the second conductive seat plate (6), the arc-striking structure and the arc-extinguishing structure comprising a left and a right part, an arc-extinguishing plate (9) being arranged in the middle of the arc-striking structure of the left and right parts, and the left and right parts of the arc-striking structure and the arc-extinguishing structure are symmetrically arranged relative to the arc-extinguishing plate (9).

2. The power connection device with arc extinguishing capability according to claim 1, characterized in that: The socket ends of the first conductive seat plate (5) and the second conductive seat plate (6) are both bent inwards to form an arc-shaped structure, and the arc-starting structure is located outside the inwardly bent arc-shaped structure.

3. The power connection device with arc extinguishing capability according to claim 2, characterized in that: The arc striking structure is an arc striking piece (10).

4. The power connection device with arc extinguishing capability according to claim 2, characterized in that: An arc extinguishing structure is provided at the end of the arc striking structure, and the arc extinguishing structure is an arc extinguishing chamber (11).

5. The power connection device with arc extinguishing capability according to claim 4, characterized in that: The arc extinguishing chamber (11) is composed of four arc extinguishing grids, the interval between each arc extinguishing grid is 1 mm, and the size of the arc extinguishing chamber is: 7 mm×15.5 mm×13.5 mm.

6. The power connection device with arc extinguishing capability according to claim 4, characterized in that: The arc extinguishing grid of the arc extinguishing chamber (11) has a Y-shaped notch, and the end of the arc striking piece (10) is located at the Y-shaped notch of the arc extinguishing chamber (11).

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