Fault arc generator

Abstract

The utility model discloses a fault arc generator which comprises a base which extends along a first direction, and the top of the base is provided with a first electrode assembly and a second electrode assembly at intervals along the first direction. The first electrode assembly comprises a first movable electrode bar and a long-distance adjusting device. The second electrode assembly comprises a second movable electrode bar and a back-and-forth adjusting device. The first movable electrode bar and the second movable electrode bar are correspondingly arranged in the first direction. The long-distance adjusting device is arranged on the side, away from the second movable electrode bar in the first direction, of the first movable electrode bar and used for adjusting the distance between the first electrode assembly and the second electrode assembly. The back-and-forth adjusting device is arranged on the side, away from the first movable electrode bar in the first direction, of the second movable electrode bar and used for driving the second electrode assembly to move so that electric arcs can be generated between the first movable electrode bar and the second movable electrode bar, and therefore the alternating current fault electric arc generating device is not limited by power supply voltage and loads; and the method has higher applicability.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of fault arc detection, and particularly relates to a fault arc arc generator. BACKGROUND

[0002] Arc is a kind of gas discharge phenomenon, in order to study the fault arc characteristic problem of battery system under laboratory conditions, often need to build arc fault test platform, design a kind of arc generating device to simulate the generation of fault arc. By real-time measurement of the physical signal and electrical signal in the arc generation process, extract arc characteristic information, provide research basis for subsequent arc detection and protection. Although the existing device can realize the generation of arc, but the fixed distance between two electrodes in the circuit connection of ordinary experimental device, and only in the variable conditions of power supply voltage and load cannot simulate the generation of fault arc under real scene, therefore the existing alternating current fault arc generating device can only simulate fault arc under fixed power supply voltage and fixed load, and its applicability is poor. UTILITARIAN CONTENT

[0003] In order to overcome the above-mentioned shortcomings, the utility model aims at providing a kind of fault arc arc generator to solve the problems raised in the above background technology.

[0004] In order to achieve the above purpose, the utility model adopts the technical scheme of a kind of fault arc arc generator, comprising:

[0005] The base extends along the first direction, and the first electrode assembly and the second electrode assembly are spaced apart along the first direction at the top.

[0006] The first electrode assembly includes a first movable electrode rod and a long-distance adjusting device. The second electrode assembly includes a second movable electrode rod and a back-and-forth adjusting device. The first movable electrode rod and the second movable electrode rod are correspondingly arranged along the first direction.

[0007] The long-distance adjusting device is arranged on the side of the first movable electrode rod away from the second movable electrode rod along the first direction, and is used for adjusting the distance between the first electrode assembly and the second electrode assembly. The back-and-forth adjusting device is arranged on the side of the second movable electrode rod away from the first movable electrode rod along the first direction, and is used for driving the second electrode assembly to move, so as to generate an arc between the first movable electrode rod and the second movable electrode rod.

[0008] The distance between the first movable electrode rod and the second movable electrode rod is adjusted under the action of the two adjusting devices, so that the alternating current fault arc generating device is not limited by the power supply voltage and the load, and has stronger applicability. Meanwhile, the second movable electrode rod can be away from and close to the battery through the back-and-forth adjusting device, and the number of times of back-and-forth movement and the moving distance simulate that the connection is loose due to vibration of the battery, and the back-and-forth arc is induced to simulate the generation of the back-and-forth arc. The distance between the first movable electrode rod and the second movable electrode rod can be preset according to experimental requirements through the long-distance adjusting device, or the first movable electrode rod can be moved to be attached to the second movable electrode rod, so that the applicability of the device as a whole is improved.

[0009] In some embodiments, the first electrode assembly further comprises a first sliding block, the second electrode assembly further comprises a second sliding block, and the top of the base is provided with a sliding rail extending in the first direction for sliding cooperation with the first sliding block and the second sliding block.

[0010] By adopting the above technical scheme, the distance between the electrodes can be accurately adjusted through the design of the sliding block and the sliding rail, so that the generation of the arc can be accurately controlled.

[0011] In some embodiments, the long-distance adjusting device comprises an adjusting screw, a fixing plate and an adjusting handle, the adjusting screw extends in the first direction, one end of the adjusting screw is rotationally connected with the first sliding block, and the other end of the adjusting screw is connected with the adjusting handle. The fixing plate is arranged on one side of the base along the first direction, and the adjusting screw is arranged in the fixing plate, so that the first sliding block can be driven to move by rotating the adjusting handle.

[0012] By adopting the above technical scheme, the position of the first sliding block can be accurately adjusted through the design of the adjusting screw, the fixing plate and the adjusting handle, so that the distance between the first electrode assembly and the second electrode assembly can be accurately controlled. The first sliding block can be driven to move by rotating the adjusting handle, so that the operation is simple, the rapid adjustment can be easily realized, and the working efficiency is improved.

[0013] In some embodiments, the back-and-forth adjusting device comprises a stepping motor and a mounting plate, the mounting plate is arranged on the other side of the base along the first direction for fixing the stepping motor. The driving end of the stepping motor penetrates through the mounting plate and is linked with the second sliding block for driving the second sliding block to move relative to the first sliding block.

[0014] By adopting the above technical scheme, the stepping motor provides accurate control, has the characteristics of high starting speed and large high-speed torque, so that the movement of the second sliding block relative to the first sliding block is more accurate, and the opening and closing speed and the distance of the electrodes of the arc generator can be accurately controlled. The purpose of accurately generating the arc is achieved.

[0015] In some embodiments, the first electrode assembly further comprises a first connecting block and a first insulating plate, which are sequentially arranged on the top of the first slider along the second direction, and the first movable electrode rod is arranged through the first connecting block along the first direction. The first connecting block is provided with a power supply inlet terminal on the side away from the second slider along the first direction, and the first direction is perpendicular to the second direction.

[0016] By using the above technical solution, the first connecting block is provided with a power supply inlet terminal on the side away from the second slider along the first direction, which makes the connection of the power supply line more convenient, and also reduces the interference between the power supply line and the moving parts. The first insulating plate serves to isolate the electrical part from the mechanical adjustment part.

[0017] In some embodiments, the second electrode assembly further comprises a second connecting block and a second insulating plate, which are sequentially arranged on the top of the second slider along the second direction, and the second movable electrode rod is arranged through the second connecting block along the first direction. The second connecting block is provided with a power supply outlet terminal on the side away from the first slider along the first direction.

[0018] By using the above technical solution, the second connecting block is provided with a power supply outlet terminal on the side away from the first slider along the first direction, which makes the connection of the power supply line more convenient, and also reduces the interference between the power supply line and the moving parts. The second insulating plate serves to isolate the electrical part from the mechanical adjustment part.

[0019] In some embodiments, the top of the first connecting block is provided with a first threaded hole corresponding to the first movable electrode rod, which is used to screw a bolt through the first threaded hole to fix the first movable electrode rod. The top of the second connecting block is provided with a second threaded hole corresponding to the second movable electrode rod, which is used to screw a bolt through the second threaded hole to fix the second movable electrode rod.

[0020] By using the above technical solution, the cooperation of the threaded hole and the bolt can provide strong fixing force, enhance the strength of the connection structure, and reduce the risk of displacement or falling of the electrode rod caused by vibration or impact. The design of the threaded hole makes the installation and maintenance of the electrode rod more convenient, because the bolt can be easily screwed in and out, facilitating quick replacement or adjustment of the electrode rod.

[0021] In some embodiments, the first movable electrode rod is made of graphite material and has a diameter of 25 mm. The second movable electrode rod is made of copper material and has a diameter of 25 mm.

[0022] Adopt above technical scheme, the stability of graphite material first moving electrode stick is better, the second moving electrode of copper material is more easily produced electric arc.

[0023] In some embodiments, the base is made of aluminum alloy.

[0024] Adopt above technical scheme, the density of aluminum alloy is about 1 / 3 of steel, using aluminum alloy base can significantly reduce the weight of equipment, improve portability and installation flexibility, and when aluminum alloy contacts air, a dense oxide film will be formed on the surface, which can prevent corrosion, improve the durability of the equipment and the convenience of maintenance. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is a sectional view of an embodiment of the arc fault arc generator of the utility model;

[0026] Figure 2 is a partial structure schematic view of an embodiment of the arc fault arc generator of the utility model.

[0027] In the drawings:

[0028] 1, arc fault arc generator;

[0029] 2, base; 20, slide rail;

[0030] 30, first moving electrode stick; 31, first sliding block; 32, adjusting screw; 33, fixed plate; 34, adjusting handle; 35, first connecting block; 350, first threaded hole; 36, power supply inlet terminal; 37, first insulating plate;

[0031] 40, second moving electrode stick; 41, second sliding block; 42, stepper motor; 420, driving end; 43, mounting plate; 44, second connecting block; 440, second threaded hole; 45, power supply outlet terminal; 46, second insulating plate. DETAILED DESCRIPTION

[0032] The preferred embodiments of the utility model are described in detail below with reference to the drawings, so that the advantages and features of the utility model can be more easily understood by those skilled in the art, and the protection scope of the utility model can be more clearly and explicitly defined.

[0033] Reference Figure 1 and Figure 2 , Figure 1 shows a sectional view of an arc fault arc generator 1 provided by an embodiment of the utility model; Figure 2 shows a partial structure schematic view of an arc fault arc generator 1 provided by an embodiment of the utility model.

[0034] AsFigure 1 and Figure 2 As shown, the technical solution provided in this application is a fault arc generator 1, comprising:

[0035] Base 2, along the first direction ( Figure 1 Extending in the X direction, the top is provided with a first electrode assembly and a second electrode assembly spaced apart along the first direction.

[0036] The first electrode assembly includes a first movable electrode rod 30 and a long-distance adjustment device. The second electrode assembly includes a second movable electrode rod 40 and a reciprocating adjustment device. The first movable electrode rod 30 and the second movable electrode rod 40 are arranged correspondingly along a first direction.

[0037] A long-distance adjustment device is located on the side of the first movable electrode rod 30 away from the second movable electrode rod 40 along a first direction, and is used to adjust the distance between the first electrode assembly and the second electrode assembly. A reciprocating adjustment device is located on the side of the second movable electrode rod 40 away from the first movable electrode rod 30 along a first direction, and is used to drive the second electrode assembly to move so as to generate an electric arc between the first movable electrode rod 30 and the second movable electrode rod 40.

[0038] The fault arc generator 1 provided in this application has an adjustable distance between the first moving electrode rod 30 and the second moving electrode rod 40, which is controlled by two adjustment devices. Therefore, this AC fault arc generator is not limited by power supply voltage and load, and has greater applicability. Simultaneously, the reciprocating adjustment device allows the second moving electrode rod 40 to move away from and closer to the battery. The number of reciprocating movements and the distance traveled simulate a loose connection caused by battery vibration, inducing a back-and-forth arcing, thus simulating the occurrence of a back-and-forth arcing. The long-distance adjustment device allows the distance between the first moving electrode rod 30 and the second moving electrode rod 40 to be preset according to experimental requirements, or the first moving electrode rod 30 to be moved to be in close contact with the second moving electrode rod 40, improving the overall applicability of the device.

[0039] In some embodiments, reference Figure 1 and Figure 2 The first electrode assembly also includes a first slider 31, and the second electrode assembly also includes a second slider 41. The top of the base 2 is provided with a slide rail 20 extending in a first direction for sliding cooperation with the first slider 31 and the second slider 41.

[0040] For example, the design of the slider and slide rail 20 allows for precise adjustment of the distance between the electrodes, thereby precisely controlling the generation of the electric arc.

[0041] In some embodiments, reference Figure 1 and Figure 2The long-distance adjusting device comprises an adjusting screw 32, a fixing plate 33 and an adjusting handle 34. The adjusting screw 32 extends along the first direction, and one end thereof is rotationally connected with the first slider 31, and the other end thereof is connected with the adjusting handle 34. The fixing plate 33 is arranged on one side of the base 2 along the first direction, and the adjusting screw 32 is arranged in the fixing plate 33. The adjusting handle 34 is used to drive the first slider 31 to move by rotating the adjusting handle 34.

[0042] Exemplarily, the precise position of the first slider 31 can be adjusted by the adjusting screw 32, the fixing plate 33 and the adjusting handle 34, so that the distance between the first electrode assembly and the second electrode assembly can be accurately controlled. The first slider 31 can be driven to move by rotating the adjusting handle 34, which is simple to operate and easy to realize rapid adjustment, thereby improving the work efficiency.

[0043] In some embodiments, with reference to Figure 1 and Figure 2 The back-and-forth adjusting device comprises a stepping motor 42 and a mounting plate 43. The mounting plate 43 is arranged on the other side of the base 2 along the first direction, and is used to fix the stepping motor 42. The driving end 420 of the stepping motor 42 penetrates through the mounting plate 43 and is linked with the second slider 41, and is used to drive the second slider 41 to move relative to the first slider 31.

[0044] Exemplarily, the stepping motor 42 provides precise control, has high starting speed and large torque at high speed, so that the movement of the second slider 41 relative to the first slider 31 is more accurate, and the opening and closing speed and distance of the electrode of the arc generator can be accurately controlled. The purpose of accurately generating an arc is achieved.

[0045] In some embodiments, with reference to Figure 1 and Figure 2 The first electrode assembly further comprises a first connecting block 35 and a first insulating plate 37. The first connecting block 35 and the first insulating plate 37 are sequentially arranged on the top of the first slider 31 along the second direction (as shown in the Z direction of the second direction), and the first moving electrode rod 30 penetrates through the first connecting block 35 along the first direction. Figure 1 The side of the first connecting block 35 away from the second slider 41 along the first direction is provided with a power supply wire inlet terminal 36, and the first direction is perpendicular to the second direction.

[0046] Exemplarily, the side of the first connecting block 35 away from the second slider 41 along the first direction is provided with the power supply wire inlet terminal 36, which makes the connection of the power supply wire more convenient, and also reduces the interference between the power supply wire and the moving part. The first insulating plate 37 serves to isolate the electrical part from the mechanical adjusting part.

[0047] In some embodiments, with reference to Figure 1 and Figure 2The second electrode assembly further includes a second connecting block 44 and a second insulating plate 46, which are sequentially arranged on the top of the second sliding block 41 along the second direction, and the second movable electrode rod 40 is arranged through the second connecting block 44 along the first direction. The second connecting block 44 is provided with a power supply outlet terminal 45 on the side away from the first sliding block 31 along the first direction.

[0048] Exemplarily, the second connecting block 44 is provided with the power supply outlet terminal 45 on the side away from the first sliding block 31 along the first direction, which makes the connection of the power supply line more convenient and reduces the interference between the power supply line and the moving parts. The second insulating plate 46 serves to isolate the electrical part from the mechanical adjustment part.

[0049] In some embodiments, with reference to Figure 1 and Figure 2 The top of the first connecting block 35 is provided with a first threaded hole 350 corresponding to the first movable electrode rod 30, which is used to screw a bolt through the first threaded hole 350 to fix the first movable electrode rod 30. The top of the second connecting block 44 is provided with a second threaded hole 440 corresponding to the second movable electrode rod 40, which is used to screw a bolt through the second threaded hole 440 to fix the second movable electrode rod 40.

[0050] Exemplarily, the use of threaded holes and bolts can provide strong fixing force, enhance the strength of the connection structure, and reduce the risk of electrode rod displacement or falling caused by vibration or impact. The design of the threaded hole makes the installation and maintenance of the electrode rod more convenient, because the bolt can be easily screwed in and out, facilitating quick replacement or adjustment of the electrode rod.

[0051] In some embodiments, the first movable electrode rod 30 is made of graphite material and has a diameter of 25 mm. The second movable electrode rod 40 is made of copper material and has a diameter of 25 mm.

[0052] Exemplarily, the first movable electrode rod 30 made of graphite material has better stability, and the second movable electrode rod made of copper material is more likely to produce an arc.

[0053] In some embodiments, the base 2 is made of aluminum alloy material.

[0054] Exemplarily, the density of aluminum alloy is about 1 / 3 of that of steel, and the use of the aluminum alloy base 2 can significantly reduce the weight of the equipment, improve portability and installation flexibility, and the surface of the aluminum alloy will form a dense oxide film when it contacts air, which can prevent corrosion and improve the durability and maintenance convenience of the equipment.

[0055] The above embodiments only illustrate the technical concept and characteristics of the present application, and the purpose is to enable those skilled in the art to understand the content of the present application and implement it, and cannot limit the protection scope of the present application. Any equivalent changes or modifications made according to the spirit and essence of the present application shall be covered within the protection scope of the present application.

Claims

1. A fault arc arc generator, characterized by, The utility model relates to a long-distance arc adjusting device for arc welding machine, including: Base, along the first direction extension, top along first direction interval has first electrode assembly and second electrode assembly; The first electrode assembly includes a first moving electrode rod and a long-distance adjusting device; the second electrode assembly includes a second moving electrode rod and a back-and-forth adjusting device; the first moving electrode rod and the second moving electrode rod are correspondingly arranged along the first direction; The long-distance adjusting device is arranged on the side of the first moving electrode rod away from the second moving electrode rod along the first direction, used for adjusting the distance between the first electrode assembly and the second electrode assembly; the back-and-forth adjusting device is arranged on the side of the second moving electrode rod away from the first moving electrode rod along the first direction, used for driving the second electrode assembly to move, so as to generate an electric arc between the first moving electrode rod and the second moving electrode rod.

2. The fault arc arc generator of claim 1, wherein, The first electrode assembly further includes a first sliding block, and the second electrode assembly further includes a second sliding block; the top of the base is provided with a sliding rail extending along the first direction, used for sliding cooperation with the first sliding block and the second sliding block.

3. The fault arc arc generator of claim 2, wherein, The long-distance adjusting device includes an adjusting screw, a fixed plate and an adjusting handle; the adjusting screw extends along the first direction, one end is rotatably connected with the first sliding block, and the other end is connected with the adjusting handle; the fixed plate is arranged on one side of the base along the first direction, and the adjusting screw is arranged through the fixed plate, used for driving the first sliding block to move by rotating the adjusting handle.

4. The fault arc arc generator of claim 3, wherein, The back-and-forth adjusting device includes a stepping motor and a mounting plate; the mounting plate is arranged on the other side of the base along the first direction, used for fixing the stepping motor; the driving end of the stepping motor is linked with the second sliding block through the mounting plate, used for driving the second sliding block to move relative to the first sliding block.

5. The fault arc arc generator of claim 2, wherein, The first electrode assembly further includes a first connecting block and a first insulating plate; the first connecting block and the first insulating plate are sequentially arranged on the top of the first sliding block along a second direction; the first moving electrode rod is arranged through the first connecting block along the first direction; the first connecting block is provided with a power supply inlet terminal on the side away from the second sliding block along the first direction; and the first direction is perpendicular to the second direction.

6. The fault arc arc generator of claim 5, wherein, The second electrode assembly further includes a second connecting block and a second insulating plate; the second connecting block and the second insulating plate are sequentially arranged on the top of the second sliding block along the second direction; the second moving electrode rod is arranged through the second connecting block along the first direction; and the second connecting block is provided with a power supply outlet terminal on the side away from the first sliding block along the first direction.

7. The fault arc arc generator of claim 6, wherein, The top of the first connecting block is provided with a first threaded hole corresponding to the first moving electrode rod, used for screwing a bolt into the first threaded hole to fix the first moving electrode rod; and the top of the second connecting block is provided with a second threaded hole corresponding to the second moving electrode rod, used for screwing a bolt into the second threaded hole to fix the second moving electrode rod.

8. The fault arc arc generator of claim 1, wherein, The material of the first moving electrode rod is graphite material, and the diameter is 25 mm; the second moving electrode rod is copper material, and the diameter is 25 mm.

9. The fault arc arc generator of claim 1, wherein, The base is made of aluminum alloy material.

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