Capacitor surge test device

Abstract

The utility model relates to a capacitor surge test device, which comprises a base, a conveying disc is rotatably mounted on the top surface of the base, a driving motor is embedded in the base, a plurality of fixing seats are arranged around the four edges of the conveying disc, and a capacitor is mounted on each fixing seat; a mounting plate is further arranged on one side of the base, and a discharging assembly is arranged on the mounting plate; the discharging device is improved based on existing capacitor discharging equipment, the disc type conveying structure is adopted to be matched with the discharging assembly, capacitors can be installed on other fixing bases in the discharging work, the idle time of the discharging equipment in the disassembling and assembling process is shortened, the whole discharging equipment can work continuously, and the discharging efficiency is improved. The mounting base adopts an adjustable fixing structure, so that the clamping distance of the mounting base can be adjusted according to the actually used capacitor model, the mounting base is effectively suitable for fixing capacitors of various specifications, and meanwhile, the mounting base is further provided with a protection mechanism, so that the safety of the equipment can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of capacitance testing, in particular to a capacitor surge test device. Background Art

[0002] Surge voltage and current are voltages and currents that momentarily exceed their stable values, posing significant risks to circuit systems. Surge voltage and current can be caused by everyday lightning strikes and circuit failures. To test a capacitor's ability to withstand these surges, a surge test, or charge-discharge durability test, is performed during production and use.

[0003] When conducting surge discharge tests on capacitors, workers usually short-circuit the two terminals of the capacitor to achieve short-circuit discharge. However, the discharge current when the capacitor is short-circuited is very large, mostly exceeding 200kA. In addition, the energy released when the two ends of the capacitor are short-circuited is very large, which may be accompanied by the flying of capacitor fragments, which is very dangerous.

[0004] In addition, existing discharge equipment can generally only install one capacitor, and its fixed mold has poor versatility. Therefore, during the production process, not only is the operation cumbersome, but the entire discharge workflow is also relatively time-consuming. Utility Model Content

[0005] Based on the above description, the utility model provides a capacitor surge test device to solve the shortcomings of the existing capacitor discharge method, which is not only dangerous, but also has poor mold versatility, cumbersome operation for workers, and the entire discharge work takes a relatively long time.

[0006] The utility model is realized through the following technical solutions:

[0007] A capacitor surge test device includes a base, a conveyor disc is rotatably mounted on the top surface of the base, a drive motor is embedded inside the base, the output shaft of the drive motor is vertically upward and fixedly connected to the center of the bottom surface of the conveyor disc, and a plurality of fixing seats are arranged around the four sides of the edge of the conveyor disc, each of which is mounted on a capacitor; a mounting plate is also provided on one side of the base, and a discharge assembly is provided on the mounting plate, which is located exactly on the top of the conveyor disc and connected to the positive and negative poles of the capacitor.

[0008] On the basis of the above technical solution, the present invention can also be improved as follows.

[0009] Furthermore, the interior of the fixing seat is hollow and a chuck is movably installed inside. The bottom surface of the chuck is provided with a vortex-shaped adjustment groove. The center of the fixing seat is recessed downward to form a circular groove. The inner wall of the circular groove is provided with an opening. A clamp is provided in each opening. One end of the clamp extends toward the interior of the fixing seat and the top end is clamped in the interior of the adjustment groove. The other end of the clamp extends toward the center and abuts against the outer wall of the capacitor.

[0010] Furthermore, an adjusting cap is provided on the top surface of the fixing seat, the bottom surface of the adjusting cap is fixedly connected to the top surface of the chuck, and anti-slip patterns are provided on the outer side wall of the adjusting cap.

[0011] Furthermore, the discharge assembly consists of three parts: an electric telescopic rod, a connecting seat and a discharge electrode, wherein the electric telescopic rod is fixedly installed on the top of the mounting plate and arranged vertically downward, the connecting seat is fixedly installed on the bottom end of the electric telescopic rod, and the discharge electrode is fixedly installed on the bottom of the connecting seat and aligned with the conveying disc up and down.

[0012] Furthermore, a protective sleeve is provided on the output end of the electric telescopic rod. The protective sleeve is arranged in a long cylindrical shape with the opening facing downward. A disc is also provided on the output end of the electric telescopic rod. The disc and the protective sleeve are fixedly connected by an elastic connecting piece.

[0013] Furthermore, the elastic connector is a spring damper, and the outer edge of the conveying disc is also provided with an annular limiting groove. When the discharge electrode is connected to the capacitor, the bottom surface of the protective sleeve fits tightly against the bottom of the limiting groove, and the elastic connector shrinks to its shortest.

[0014] Furthermore, the inwardly facing surface of the clamping block is configured as an arc-shaped surface and an elastic pad is fitted on the side wall, and the side wall of the elastic pad is provided with anti-slip lines.

[0015] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0016] 1. The present application is an improvement based on the existing capacitor discharge equipment, and adopts a disc-type conveying structure to cooperate with the discharge assembly. During the discharge operation, capacitors can be installed on other fixing seats, shortening the idle time of the discharge equipment during the disassembly and assembly process, so that the entire discharge equipment can work continuously. In addition, the mounting seat adopts an adjustable fixing structure, so that the clamping distance can be adjusted according to the actual capacitor model used, which is effectively suitable for fixing capacitors of various specifications. At the same time, the structure of the present application is also provided with a protection mechanism, which can improve the safety of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1Schematic diagram of the structure of the base, fixing base and discharge assembly in this embodiment;

[0018] Figure 2 Schematic diagram of the structure of the discharge assembly in this embodiment;

[0019] Figure 3 1 is a front view of the base, fixing base and discharge assembly in this embodiment;

[0020] Figure 4 This is a schematic structural diagram of the base, drive motor and conveyor tray in this embodiment;

[0021] Figure 5 Schematic diagram of the combined structure of the fixing seat in this embodiment;

[0022] Figure 6 Schematic diagram of the structure of the chuck in this embodiment;

[0023] Among them: 1. Base; 11. Drive motor; 12. Mounting plate; 2. Conveyor tray; 3. Fixed seat; 31. Chuck; 32. Clamping block; 33. Adjustment cap; 34. Limiting slot; 4. Discharge assembly; 41. Electric telescopic rod; 42. Connecting seat; 43. Discharge electrode; 44. Protective cover; 45. Disc; 46. Elastic connector. DETAILED DESCRIPTION

[0024] To facilitate understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings. The accompanying drawings provide embodiments of the present application. However, the present application may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of the present application more thorough and comprehensive.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application pertains. The terms used herein in the specification of this application are for the purpose of describing specific embodiments only and are not intended to limit this application.

[0026] Combine Figure 1-6 As shown, a capacitor surge test device includes:

[0027] The base 1 is a rectangular plate-shaped structure with a drive motor 11 embedded in the center and a control button on the top surface of the base 1;

[0028] The conveyor plate 2 is a circular plate, and the center of its bottom surface is fixedly connected to the output end of the drive motor 11. Its edge is movably assembled with the base 1 through ball bearings, so that it can achieve directional rotation under the control of the drive motor 11.

[0029] There are multiple fixing seats 3, which are arranged around the top surface of the conveying tray 2 to clamp and fix the capacitor;

[0030] The discharge assembly 4 is arranged on one side of the base 1 and is fixedly connected to the top surface of the base 1 through the mounting plate 12 , and the discharge assembly 4 is located just above one of the fixing seats 3 .

[0031] Specifically; in this embodiment, the number of single rotations of the drive motor 11 is related to the fixed base 3, for example Figure 1 As shown, there are four fixing seats 3 , and the driving motor 11 should rotate each time to rotate the conveying plate 2 90°, so that at least one fixing seat 3 can always be located directly below the discharge assembly 4 .

[0032] In the actual testing process, multiple models are often tested, or when the capacitor is changed during production, in order to further improve the convenience, the fixing seat 3 in this embodiment should be set to be hollow, and a chuck 31 is rotatably installed inside, and a vortex-shaped adjustment groove is provided on the downward side of the chuck 31.

[0033] At the same time, the entire fixing base 3 is a circular structure, and the center of its top surface is concave downward to form a groove, and the capacitor is placed inside the groove. A plurality of openings are arranged around the inner wall of the groove, and a clamping block 32 is provided inside each opening. One end of the clamping block 32 extends toward the inside of the fixing base 3 and its top protrudes upward and is inserted into the adjustment groove, while the other end extends toward the center of the fixing base 3 and abuts against the side wall of the capacitor. In addition, an adjustment cap 33 is provided on the top of the fixing base 3. The adjustment cap 33 is set to be annular, and its bottom is fixedly connected to the top surface of the chuck 31.

[0034] In order to avoid deformation of the capacitor side wall caused by excessive clamping force of the clamping block 32, an elastic pad should be provided on the side of the clamping block 32 facing the center of the fixing seat 3. The elastic pad can be made of rubber material and anti-slip grooves can be added to its side wall, which can serve as a buffer layer and increase the clamping force.

[0035] Based on the above structure, the staff can easily expand or gather the multiple clamps 32 by twisting the top adjustment cap 33, thereby conveniently controlling the clamping or loosening of the capacitor so as to fix capacitors of different specifications and models.

[0036] The discharge assembly 4 consists of three parts: an electric telescopic rod 41, a connecting seat 42 and a discharge electrode 43. The electric telescopic rod 41 is fixedly installed on the top of the mounting plate 12 and arranged vertically downward. The connecting seat 42 is fixedly installed on the bottom end of the electric telescopic rod 41. The discharge electrode 43 is fixedly installed on the bottom of the connecting seat 42 and aligned with the conveyor disc 2 up and down. Therefore, when the electric telescopic rod 41 extends downward, the discharge electrode 43 can be connected to the two poles of the capacitor. When the electric telescopic rod 41 contracts, the two are separated.

[0037] Considering that in actual discharge work, the energy released when the capacitor is short-circuited is very large, and capacitor fragments may fly out, a protective structure is required. In this embodiment, a protective sleeve 44 is used as the protective structure. The protective sleeve 44 is configured to be long and cylindrical, with its opening facing downward, and its top surface is sleeved on the output end of the electric telescopic rod 41. At the same time, a limiting groove 34 with an annular structure is provided on the outer edge of the fixing seat 3. When the discharge work is performed, the entire protective sleeve 44 moves downward and is inserted into the limiting groove 34, completely covering the entire fixing seat 3, thereby improving the safety of the structure.

[0038] In addition, in order to further improve the protective effect of the protective structure, a disc 45 should be provided on the output end of the electric telescopic rod 41. The disc 45 is located on the top surface of the protective sleeve 44, and an elastic connector 46 is provided between the two. When discharging, the elastic connector 46 needs to be squeezed downward by the disc 45 so that the protective sleeve 44 is inserted into the limiting groove 34 to complete the covering. Moreover, the elastic connector 46 will always exert an elastic force downward, so that the two fit more closely and the connection strength between the two is improved.

[0039] Since the elastic connecting member 46 is a damping spring, when the protective cover 44 and the fixing base 3 are separated from each other, the protective cover 44 will slowly return to its original state so as to perform the next discharge operation.

[0040] In the above structure, the staff can install new capacitors on other fixing seats 3 or remove capacitors that have been operated while the discharge component 4 is discharging the capacitor on one of the fixing seats 3, which greatly shortens the working interval time of the discharge component 4, makes the entire discharge production process more coherent, and greatly improves the discharge production efficiency of the capacitor.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the technical solutions of the embodiments of the present invention.

Claims

1. A capacitor surge test device, characterized in that: The invention comprises a base (1), a conveying disc (2) is rotatably mounted on the top surface of the base (1), a driving motor (11) is embedded in the interior of the base (1), the output shaft of the driving motor (11) is vertically upward and fixedly connected to the center of the bottom surface of the conveying disc (2), a plurality of fixing seats (3) are arranged around the four edges of the conveying disc (2), and a capacitor is mounted on each fixing seat (3); a mounting plate (12) is also provided on one side of the base (1), and a discharge assembly (4) is provided on the mounting plate (12), and the discharge assembly (4) is located just on the top of the conveying disc (2) and connected to the positive and negative poles of the capacitor.

2. A capacitor surge test device according to claim 1, characterized in that: The interior of the fixing seat (3) is hollow and a chuck (31) is movably installed therein. The bottom surface of the chuck (31) is provided with a vortex-shaped adjustment groove. The center of the fixing seat (3) is recessed downward to form a circular groove. The inner side wall of the circular groove is provided with an opening. A clamping block (32) is provided in each opening. One end of the clamping block (32) extends toward the interior of the fixing seat (3) and the top end is clamped in the adjustment groove. The other end of the clamping block (32) extends toward the center and abuts against the outer side wall of the capacitor.

3. A capacitor surge test device according to claim 2, characterized in that: The top surface of the fixing seat (3) is further provided with an adjusting cap (33), the bottom surface of the adjusting cap (33) is fixedly connected to the top surface of the chuck (31), and the outer side wall of the adjusting cap (33) is further provided with anti-slip lines.

4. A capacitor surge test device according to claim 1, characterized in that: The discharge assembly (4) comprises three parts: an electric telescopic rod (41), a connecting seat (42) and a discharge electrode (43), wherein the electric telescopic rod (41) is fixedly mounted on the top of the mounting plate (12) and arranged vertically downward, the connecting seat (42) is fixedly mounted on the bottom end of the electric telescopic rod (41), and the discharge electrode (43) is fixedly mounted on the bottom of the connecting seat (42) and arranged in alignment with the conveying tray (2) in an upper and lower direction.

5. A capacitor surge test device according to claim 4, characterized in that: A protective sleeve (44) is further provided on the output end of the electric telescopic rod (41). The protective sleeve (44) is arranged in a long cylindrical shape with its opening facing downward. A disc (45) is further provided on the output end of the electric telescopic rod (41). The disc (45) and the protective sleeve (44) are fixedly connected via an elastic connecting piece (46).

6. A capacitor surge test device according to claim 5, characterized in that: The elastic connecting member (46) is a spring damper, and an annular limiting groove (34) is further provided on the outer edge of the conveying disc (2). When the discharge electrode (43) is connected to the capacitor, the bottom surface of the protective sleeve (44) is tightly fitted to the bottom of the limiting groove (34), and the elastic connecting member (46) is contracted to its shortest position.

7. A capacitor surge test device according to claim 2, characterized in that: The inner side of the clamping block (32) is arranged as an arc-shaped surface and an elastic pad is arranged on the side wall, and the side wall of the elastic pad is provided with anti-slip lines.

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