A wiring post arc extinguishing cap

Abstract

The utility model discloses an arc extinguishing cap for a terminal post, comprising a connection base connected to a terminal post body and side panels arranged on both sides of the connection base, a mounting groove for mounting the connection base is provided near the side panels on the connection base, a top cover is installed above the two sets of side panels, a connector is connected through the top cover above the terminal post body, and an arc extinguishing assembly with adjustable position is arranged above the connector. The utility model is not only convenient for installation and disassembly, but also can flexibly adjust the position of the arc extinguishing assembly, thereby improving the use efficiency and reliability.

Description

Technical Field

[0001] The utility model belongs to the electrical field, and in particular relates to an arc extinguishing cap for a terminal post. Background Art

[0002] The arc extinguishing cap of the terminal is a key accessory used in electrical equipment, especially for circuit breakers and contactors. Its main function is to quickly extinguish the arc when the circuit is disconnected, prevent the arc from damaging the equipment, and ensure the normal operation of the circuit. The arc extinguishing cap is usually located between the contacts, and when the contacts are separated, the arc is generated inside the arc extinguishing cap. The special structure inside the arc extinguishing cap helps to quickly extinguish the arc, reduce damage to the contacts, and thus extend the service life of the equipment.

[0003] However, there are some common problems when using arc extinguishing caps. Since the position of the arc extinguishing cap cannot be adjusted, this may make the installation and removal process difficult. In addition, during the installation and removal process, the distance position between the arc extinguishing cap and the arc contact point may be affected, thus affecting the effectiveness and overall performance of the arc extinguishing cap. Utility Model Content

[0004] The utility model aims to provide an arc extinguishing cap for a terminal post, which is not only easy to install and disassemble, but also can flexibly adjust the position of the arc extinguishing component, thereby improving the use efficiency and reliability.

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

[0006] An arc extinguishing cap for a terminal post comprises a connecting base connected to a terminal post body and side panels arranged on both sides of the connecting base, a mounting groove for mounting the connecting base is provided on the connecting base near the side panels, a top cover is installed above the two sets of side panels, a connecting head is connected through the top cover above the terminal post body, and an arc extinguishing component with an adjustable position is arranged above the connecting head.

[0007] Furthermore, the arc extinguishing assembly includes a connecting seat, a top of the connecting seat is provided with a placement groove for inserting the connecting head, a mounting bracket is arranged above the connecting seat, arc extinguishing brackets are engaged with arc extinguishing brackets on both sides of the inner wall of the mounting bracket, and the mounting bracket and the connecting seat are engaged with each other through a locking piece to form a rotating structure.

[0008] Furthermore, the arc extinguishing assembly also includes a mounting plate connected to one side of the connecting seat, and docking pieces are connected on both sides of the mounting plate through snap-fit ​​columns. Positioning grooves are provided on both sides of the bottom of the mounting bracket. When the mounting bracket is in an open state, the docking pieces are limited at the positioning grooves to fix the mounting bracket.

[0009] Furthermore, the arc-extinguishing bracket includes a fixed base, on which a plurality of first arc-extinguishing grids are arranged, a second arc-extinguishing grid is arranged below each first arc-extinguishing grid, a gap is left between any group of first arc-extinguishing grids and second arc-extinguishing grids and a connecting plate is installed, and a plurality of groups of limiting strips are arranged on both sides of the first arc-extinguishing grids and the second arc-extinguishing grids, the bottom of the limiting strips is connected to the fixed base, and a fixing plate is arranged on the side of the first arc-extinguishing grids and the second arc-extinguishing grids away from the connecting head.

[0010] Furthermore, the connector includes a connecting column, a sealing ring is sleeved on the connecting column, a gap between the connecting column and the top cover is sealed by the sealing ring, and a connecting cap is arranged above the connecting column.

[0011] Furthermore, the four corners of the top cover are provided with connection grooves for connecting the connector and the external node.

[0012] Furthermore, a butt joint plate for connecting two sets of arc extinguishing caps is connected to one side of the top cover.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The utility model connects the terminal body and the connector by arranging a connecting base, a side plate and a top cover, and arranges an arc extinguishing component above the connector, which has a simple structure and is convenient for disassembly; at the same time, the position of the arc extinguishing component can be flexibly adjusted, thereby improving the use efficiency and reliability.

[0015] Furthermore, the utility model uses a snap-fitting part to make the mounting bracket and the connecting seat form a rotating structure. When the position of the arc extinguishing bracket needs to be adjusted, the position between the arc extinguishing bracket and the connecting head is changed by rotating the mounting bracket; by setting positioning grooves on both sides of the bottom of the mounting bracket and docking pieces on both sides of the mounting plate, when the mounting bracket is in an open state, the docking pieces can be limited to the positioning grooves to fix the position of the mounting bracket, and when the mounting bracket tends to close, the docking pieces are separated from the positioning grooves, and the position of the mounting bracket can be adjusted.

[0016] Furthermore, the utility model arranges multiple groups of first arc-extinguishing grids and second arc-extinguishing grids on the arc-extinguishing bracket, and a gap is left between any group of first arc-extinguishing grids and second arc-extinguishing grids. When an arc is generated in the connector, the arc enters the interior of the arc-extinguishing bracket under the action of electric force and is divided into several sections, each section is equivalent to an independent electrode, and thus there are multiple anode and cathode voltage drops; the arc passes through the gaps between the first arc-extinguishing grids and the second arc-extinguishing grids, and these narrow gaps limit the diameter of the arc, increasing the arc gap pressure, and at the same time the arc is elongated, thereby accelerating the arc extinction process. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1It is a structural schematic diagram of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the main body of the terminal of the utility model;

[0019] Figure 3 It is a structural schematic diagram of the arc extinguishing assembly of the utility model;

[0020] Figure 4 It is a structural schematic diagram of the arc extinguishing bracket of the utility model;

[0021] In the figure: 1-terminal body; 2-side plate; 3-connecting base; 301-mounting groove; 4-connecting head; 5-top cover; 501-connecting groove; 6-arc extinguishing assembly; 7-docking plate; 8-sealing ring; 9-connecting column; 10-connecting cap; 11-mounting bracket; 12-arc extinguishing bracket; 13-clamping piece; 14-placing groove; 15-positioning groove; 16-mounting plate; 17-connecting column; 18-docking plate; 19-connecting seat; 20-first arc extinguishing grid; 21-second arc extinguishing grid; 22-connecting plate; 23-fixing plate; 24-limiting strip; 25-fixed base. DETAILED DESCRIPTION

[0022] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0023] like Figure 1 As shown, an arc extinguishing cap for a terminal post described in this embodiment includes a connecting base 3 connected to a terminal post body 1 and side panels 2 arranged on both sides of the connecting base 3. A mounting groove 301 for mounting the connecting base 3 is provided on the connecting base 3 near the side panels 2. A top cover 5 is installed above the two groups of side panels 2, and connecting grooves 501 are provided at the four corners of the top cover 5. A connector 4 is connected through the top cover 5 above the terminal post body 1, and the connector 4 and the external node are connected through the connecting groove 501. An arc extinguishing assembly 6 with adjustable position is provided above the connector 4. A docking plate 7 is connected to one side of the top cover 5, and the two groups of arc extinguishing caps are connected by the docking plate 7, and the position distance between the two groups of arc extinguishing caps is confirmed by the docking plate 7.

[0024] like Figure 2 As shown, the connector 4 includes a connecting column 9 , on which a sealing ring 8 is sleeved, through which the gap between the connecting column 9 and the top cover 5 is sealed, and a connecting cap 10 is arranged above the connecting column 9 .

[0025] like Figure 3As shown, the arc extinguishing assembly 6 includes a connection seat 19 and a mounting plate 16 connected to one side of the connection seat 19. A placement slot 14 is provided on the top of the connection seat 19, and the connector 4 can pass through the placement slot 14 to connect with the arc extinguishing assembly 6. A mounting bracket 11 is provided above the connection seat 19, and arc extinguishing brackets 12 are engaged on both sides of the inner wall of the mounting bracket 11. The mounting bracket 11 and the connection seat 19 are engaged with each other through a locking member 13. When the position of the arc extinguishing bracket 12 needs to be adjusted, the position between the arc extinguishing bracket 12 and the connector 4 is changed by rotating the mounting bracket 11. Positioning slots 15 are provided on both sides of the bottom of the mounting bracket 11, and docking pieces 18 are connected to both sides of the mounting plate 16 through locking columns 17. When the mounting bracket 11 is in an open state, the docking piece 18 can be limited to the positioning slot 15 to fix the position of the mounting bracket 11. When the mounting bracket 11 is in a closed state, the docking piece 18 is separated from the positioning slot 15, and the position of the mounting bracket 11 can be adjusted.

[0026] like Figure 4 As shown, the arc-extinguishing support 12 includes a fixed base 25, on which a plurality of first arc-extinguishing grids 20 are arranged, and a second arc-extinguishing grid 21 is arranged below each first arc-extinguishing grid 20, a gap is left between any group of first arc-extinguishing grids 20 and second arc-extinguishing grids 21, and a connecting piece 22 is installed, and a plurality of groups of limiting bars 24 are arranged on both sides of the first arc-extinguishing grids 20 and the second arc-extinguishing grids 21, and the lower part of the limiting bars 24 is connected to the fixed base 25, and a fixing piece 23 is arranged on the side of the first arc-extinguishing grid 20 and the second arc-extinguishing grid 21 away from the connector 4. The fixing piece 23 and the limiting bar 24 are used to limit the positions of the first arc-extinguishing grid 20 and the second arc-extinguishing grid 21 and fix the gap distance between them, and the arc-extinguishing support 12 is supported by the fixed base 25. When an arc is generated in the connector 4, the arc enters the arc extinguishing bracket 12 under the action of electric force and is divided into several sections, each section is equivalent to an independent electrode, so there are multiple cathode and anode voltage drops; the arc passes through the gap between the first arc extinguishing grid 20 and the second arc extinguishing grid 21, these narrow gaps limit the diameter of the arc, increase the arc gap pressure, and at the same time the arc is elongated, accelerating the arc extinction process.

[0027] Working principle: When using a terminal arc extinguishing cap, the terminal body 1 is installed on the connection base 3, the side plate 2 is installed with the connection base 3, the connector 4 passes through the top cover 5 and the gap between the connector 4 and the top cover 5 is sealed by the sealing ring 8, and the top cover 5 and the side plate 2 are installed. Then the arc extinguishing component 6 is installed on the connector 4, and the connector 4 passes through the placement groove 14 of the arc extinguishing component 6 to limit the position of the arc extinguishing component 6, and the assembly is completed.

[0028] When the position of the arc extinguishing bracket 12 needs to be adjusted, the position between the arc extinguishing bracket 12 and the connector 4 is changed by rotating the mounting bracket 11, and the position of the mounting bracket 11 is fixed by limiting the butt piece 18 to the positioning groove 15. When the connector 4 generates an arc, the arc enters the arc extinguishing bracket 12 under the action of electric power and is divided into several sections. Each section is equivalent to an independent electrode, so there are multiple cathode and anode voltage drops; the arc passes through the gap between the first arc extinguishing grid 20 and the second arc extinguishing grid 21. These narrow gaps limit the diameter of the arc, increase the arc gap pressure, and at the same time the arc is elongated, accelerating the arc extinguishing process.

Claims

1. A terminal arc extinguishing cap, characterized in that: The invention comprises a connection base (3) connected to a terminal body (1) and side panels (2) arranged on both sides of the connection base (3); a mounting groove (301) for mounting the connection base (3) is provided on the connection base (3) near the side panels (2); a top cover (5) is installed above the two sets of side panels (2); a connector (4) is connected to the terminal body (1) through the top cover (5); and an arc extinguishing component (6) whose position can be adjusted is arranged above the connector (4).

2. The arc extinguishing cap of a terminal according to claim 1, characterized in that: The arc extinguishing assembly (6) comprises a connecting seat (19), a placement groove (14) for inserting a connector (4) is provided on the top of the connecting seat (19), a mounting bracket (11) is arranged above the connecting seat (19), arc extinguishing brackets (12) are engaged with each other on both sides of the inner wall of the mounting bracket (11), and the mounting bracket (11) and the connecting seat (19) are engaged with each other via an engaging member (13) to form a rotating structure.

3. The arc extinguishing cap of a terminal according to claim 2, characterized in that: The arc extinguishing assembly (6) further comprises a mounting plate (16) connected to one side of the connecting seat (19); both sides of the mounting plate (16) are connected to docking pieces (18) via snap-fit ​​columns (17); both sides of the bottom of the mounting bracket (11) are provided with positioning grooves (15); when the mounting bracket (11) is in an open state, the docking pieces (18) are limited at the positioning grooves (15) to fix the mounting bracket (11).

4. The arc extinguishing cap of a terminal according to claim 2, characterized in that: The arc extinguishing support (12) comprises a fixed base (25), a plurality of first arc extinguishing grids (20) are arranged on the fixed base (25), a second arc extinguishing grid (21) is arranged below each first arc extinguishing grid (20), a gap is left between any group of first arc extinguishing grids (20) and second arc extinguishing grids (21) and a connecting piece (22) is installed, and a plurality of groups of limiting strips (24) are arranged on both sides of the first arc extinguishing grids (20) and the second arc extinguishing grids (21), the lower part of the limiting strips (24) is connected to the fixed base (25), and a fixing piece (23) is arranged on the side of the first arc extinguishing grids (20) and the second arc extinguishing grids (21) away from the connector (4).

5. The arc extinguishing cap of a terminal according to claim 1, characterized in that: The connector (4) comprises a connecting column (9), a sealing ring (8) is sleeved on the connecting column (9), a gap between the connecting column (9) and the top cover (5) is sealed by the sealing ring (8), and a connecting cap (10) is arranged above the connecting column (9).

6. The arc extinguishing cap of a terminal according to any one of claims 1 to 5, characterized in that: The four corners of the top cover (5) are each provided with a connection groove (501) for connecting the connector (4) to an external node.

7. The arc extinguishing cap of a terminal according to claim 6, characterized in that: A butt joint plate (7) for connecting two sets of arc extinguishing caps is connected to one side of the top cover (5).

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