Arc extinguishing chamber of soft starter

Abstract

The utility model discloses a soft starter arc extinguishing cover, comprising an L-shaped housing, a connection fixing housing and a fast assembly assembly, the top surface of the L-shaped housing is uniformly provided with clamping gaps from left to right, and arc extinguishing sheets are arranged between the L-shaped housing and the connection fixing housing and corresponding to the clamping gaps; and the quick-mounting assembly comprises an inserting hole, inserting blocks, a first threaded hole and a second threaded hole, the first threaded hole and the second threaded hole are formed in the center positions of the surfaces of the L-shaped shell and the connecting and fixing shell correspondingly, and the inserting blocks are clamped and inserted into the inserting hole. The material of the fire extinguishing sheet of the arc extinguishing chamber has a better heat dissipation effect, and is convenient to quickly disassemble and assemble.

Description

Technical Field

[0001] The utility model relates to the technical field of arc extinguishing hoods, in particular to an arc extinguishing hood of a soft starter. Background Art

[0002] A soft starter is a motor control device that integrates soft starting, soft stopping, light load energy saving and multi-functional protection. It can start the motor smoothly without impact during the entire starting process, and can adjust various parameters in the starting process according to the characteristics of the motor load, such as current limiting value, starting time, etc. At present, the contactor of the soft starter will generate an arc at the moment of opening and closing, and the arc extinguishing hood is a relatively common device that allows the arc to contact with a solid medium, reduces the arc temperature, and thus accelerates the extinction of the arc.

[0003] The existing arc extinguishing hood of the soft starter also has the following defects: At present, the arc extinguishing pieces used in the arc extinguishing hood are generally made of steel materials, the heat dissipation effect is average, and the disassembly and assembly are not fast enough. Therefore, we propose a soft starter arc extinguishing hood. Utility Model Content

[0004] The main purpose of the utility model is to provide an arc extinguishing cover for a soft starter, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A soft starter arc extinguishing cover comprises an L-shaped shell, a connecting and fixing shell and a quick-install assembly, wherein the top surface of the L-shaped shell is evenly provided with fixing notches from left to right, and arc extinguishing sheets are provided at positions corresponding to the fixing notches between the L-shaped shell and the connecting and fixing shell; the quick-install assembly comprises a plug-in hole, a plug-in block, a first threaded hole and a second threaded hole, wherein the first threaded hole and the second threaded hole are respectively provided at the center positions of the surfaces of the L-shaped shell and the connecting and fixing shell, and the plug-in blocks are plugged into the plug-in holes.

[0007] Furthermore, the connecting and fixing shell is located on one side of the L-shaped shell.

[0008] Furthermore, a clamping block is provided on the top of each of the arc-extinguishing pieces, and each of the arc-extinguishing pieces is fixed in the fixing notch through the clamping block.

[0009] Furthermore, the plug holes are all opened on one side surface of the L-shaped shell, the plug blocks are all arranged on one side surface of the connection and fixing shell, and a fixing bolt passes through the first threaded hole and the second threaded hole.

[0010] Furthermore, the inner walls of the fixing notches are bonded with reinforcement pads, which are made of rubber material.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] By setting up arc-extinguishing plates, which are copper-aluminum composite plates, the aluminum metal has better volatilization radiation, is corrosion-resistant, has a relatively large heat dissipation capacity, and has a fast heat dissipation speed, which is better than steel arc-extinguishing plates.

[0013] By setting a fixing notch, a plug-in hole, a plug-in block, a first threaded hole and a first threaded hole, the fixing notch is used to facilitate the arc-extinguishing piece to be fixed by the plug-in block, and the plug-in hole is used to facilitate the connection and fixing shell to be connected by the plug-in block, and then the fixing bolt is passed through the second threaded hole and the first threaded hole at the same time to fix the connection and fixing shell, and the disassembly and assembly method is faster. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model is a schematic diagram of the overall structure of an arc extinguishing cover of a soft starter.

[0015] Figure 2 The utility model is a schematic diagram of a block structure of an arc extinguishing cover of a soft starter.

[0016] Figure 3 The utility model is a schematic diagram of a fixing notch and a reinforcing pad structure of an arc extinguishing cover of a soft starter.

[0017] Figure 4 The utility model is a schematic diagram of the plug-in block and the second threaded hole structure of the arc extinguishing cover of a soft starter.

[0018] In the figure: 1. L-shaped shell; 2. connecting and fixing shell; 3. fixing notch; 4. arc extinguishing plate; 5. clamping block; 6. quick-release assembly; 601. plug-in hole; 602. plug-in block; 603. first threaded hole; 604. second threaded hole; 7. fixing bolt; 8. reinforcement pad. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0020] like Figure 1-4 As shown, an arc extinguishing cover of a soft starter includes an L-shaped shell 1, a connecting and fixing shell 2 and a quick-install component 6, wherein the top surface of the L-shaped shell 1 is evenly provided with fixing notches 3 from left to right, and arc extinguishing sheets 4 are provided at positions corresponding to the fixing notches 3 between the L-shaped shell 1 and the connecting and fixing shell 2; the quick-install component 6 includes a plug-in hole 601, a plug-in block 602, a first threaded hole 603 and a second threaded hole 604, wherein the first threaded hole 603 and the second threaded hole 604 are respectively provided at the center positions of the surfaces of the L-shaped shell 1 and the connecting and fixing shell 2, and the plug-in blocks 602 are all plugged into the plug-in hole 601.

[0021] The connecting and fixing shell 2 is located on one side of the L-shaped shell 1 .

[0022] In this embodiment, Figure 1 , 3 As shown in 4, the arc-extinguishing piece 4 is fixed on both sides by the cooperation of the L-shaped housing 1 and the connecting and fixing housing 2.

[0023] Wherein, a clamping block 5 is provided on the top of each of the arc-extinguishing pieces 4 , and each of the arc-extinguishing pieces 4 is clamped in the clamping notch 3 through the clamping block 5 .

[0024] In this embodiment, Figure 1 , 2 As shown in FIG. 3 , the arc-extinguishing piece 4 is fixed by the clamping block 5 through the clamping notch 3 .

[0025] The plug holes 601 are all opened on one side surface of the L-shaped housing 1 , the plug blocks 602 are all arranged on one side surface of the connecting and fixing housing 2 , and a fixing bolt 7 penetrates between the first threaded hole 603 and the second threaded hole 604 .

[0026] In this embodiment, Figure 1 , 3 As shown in FIG. 4 , the connection and fixing shell 2 is fixed by the fixing bolt 7 penetrating through the second threaded hole 604 and the first threaded hole 603 at the same time.

[0027] Wherein, the inner wall of the fixing notch 3 is bonded with a reinforcing pad 8, and the reinforcing pad 8 is made of rubber material.

[0028] In this embodiment, Figure 1 , 3 As shown, the friction between the rubber material and the clamping block 5 is increased by the reinforcement pad 8, thereby further improving the clamping stability.

[0029] It should be noted that the utility model is an arc extinguishing cover for a soft starter. During assembly, the fixing notch 3 is utilized to facilitate the arc extinguishing piece 4 to be fixed by the fixing block 5, and the friction between the rubber material and the fixing block 5 is increased by the reinforcing pad 8 to further enhance the fixing stability, and the plug-in hole 601 is utilized to facilitate the connection and fixing shell 2 to be connected by the plug-in block 602, and then the fixing bolt 7 is simultaneously passed through the second threaded hole 604 and the first threaded hole 603 to fix the connection and fixing shell 2, so that the L-shaped shell 1 cooperates with the connection and fixing shell 2 to fix the arc extinguishing piece 4 on both sides. During use, the arc extinguishing piece 4 is a copper-aluminum composite plate, and the aluminum metal has better volatilization radiation, corrosion resistance, relatively large heat dissipation, and fast heat dissipation speed, which is better than the steel arc extinguishing piece 4.

[0030] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A soft starter arc extinguishing cover, comprising an L-shaped housing (1), a connecting and fixing housing (2) and a quick-install assembly (6), characterized in that: The top surface of the L-shaped housing (1) is provided with fixing notches (3) evenly spaced from left to right, and arc extinguishing sheets (4) are provided at positions corresponding to the fixing notches (3) between the L-shaped housing (1) and the connection fixing housing (2); The quick-install assembly (6) comprises a plug-in hole (601), a plug-in block (602), a first threaded hole (603) and a second threaded hole (604); the first threaded hole (603) and the second threaded hole (604) are respectively provided at the center positions of the surfaces of the L-shaped shell (1) and the connecting and fixing shell (2); and the plug-in blocks (602) are inserted into the plug-in hole (601).

2. The arc extinguishing cover of a soft starter according to claim 1, characterized in that: The connecting and fixing shell (2) is located on one side of the L-shaped shell (1).

3. The arc extinguishing cover of a soft starter according to claim 1, characterized in that: A clamping block (5) is provided on the top of each of the arc-extinguishing pieces (4), and each of the arc-extinguishing pieces (4) is clamped in the clamping notch (3) via the clamping block (5).

4. The arc extinguishing cover of a soft starter according to claim 1, characterized in that: The plug holes (601) are all formed on one side surface of the L-shaped housing (1), the plug blocks (602) are all arranged on one side surface of the connection fixing housing (2), and a fixing bolt (7) penetrates between the first threaded hole (603) and the second threaded hole (604).

5. The arc extinguishing cover of a soft starter according to claim 1, characterized in that: The inner wall of the fixing notch (3) is bonded with a reinforcement pad (8), and the reinforcement pad (8) is made of rubber material.

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