Capacitor air pressure test bench

Abstract

The utility model discloses a capacitor air pressure test bench, which is characterized in that air tightness detection is needed when a capacitor shell is manufactured, an opening is arranged on a single surface of the capacitor shell at the moment, electronic components can be conveniently placed in the capacitor shell subsequently, and the air tightness detection cannot be directly carried out on the shell with the opening on the single surface. The lifting mechanism, the clamping mechanism and the water storage tank are arranged in a matched mode, the clamping mechanism clamps the aluminum box serving as a capacitor shell, the opening of the aluminum box faces downwards, the lifting mechanism controls the aluminum box to move downwards till the lower end of the aluminum box is immersed in water, the water can seal the aluminum box with the opening, and air tightness detection of the aluminum box is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of air tightness detection, in particular to a capacitor air pressure test bench. Background Art

[0002] When the service life of the components in the capacitor is exhausted, the component film will be punctured and produce gas, causing the air pressure in the capacitor case to rise. When the air pressure reaches a certain value, the explosion-proof wire in the cover is pulled off to cut off the power supply. However, after the power is cut off, the components will continue to produce gas, and the case has to withstand high air pressure. In a high-pressure environment, if the capacitor shell cracks, it will cause gas leakage, and the filling medium in the capacitor may also leak. Therefore, the capacitor shell needs to be tested for air tightness after manufacturing.

[0003] The capacitor casing must be tested for air tightness during manufacturing. At this time, the capacitor casing has an opening on one side to facilitate the subsequent placement of electronic components. However, the casing with an opening on one side cannot be directly tested for air tightness. Utility Model Content

[0004] Therefore, in order to solve the above problems, the purpose of the utility model is to provide a capacitor air pressure test bench, including a lifting mechanism and a clamping mechanism, the lifting mechanism includes a vertically arranged screw and a lifting motor capable of driving the screw to rotate, the clamping mechanism includes a clamping motor, the clamping motor is movably connected to the screw through a bearing plate, two clamping plates are connected to the output end of the clamping motor and the clamping motor can control the two clamping plates to approach each other and clamp the box body, and a water tank is provided under the clamping plate.

[0005] Preferably, a threaded rod is connected to the output end of the clamping motor and can control the rotation of the threaded rod. Opposite threads are provided at both ends of the threaded rod. The two clamping plates are threadedly connected to the two ends of the threaded rod. The clamping mechanism also includes a guide plate, which is clamped with the clamping plate to limit the rotation of the clamping plate.

[0006] Preferably, a glue layer is provided on the opposite sides of the two splints.

[0007] Preferably, a hook is connected to the lower end of the clamping motor, and the hook is parallel to the clamping plate and is located directly below the two clamping plates.

[0008] Preferably, a distance rod is connected to the lower end of the hook, and the lower end of the distance rod can abut against the bottom of the water tank.

[0009] Preferably, an elastic bent piece is connected to the lower end of the distance rod, the outer bend of the elastic bent piece faces the bottom of the water tank, and the inner bend of the elastic bent piece is provided with a color warning coating.

[0010] Preferably, the distance rod comprises a connecting portion and an adjusting portion, the connecting portion is directly connected to the hook, the adjusting portion is threadedly connected to the connecting portion, and the elastic bent piece is connected to the lower end of the adjusting portion.

[0011] The beneficial effects of the utility model are:

[0012] A lifting mechanism, a clamping mechanism and a water storage tank are provided in conjunction with the clamping mechanism. The clamping mechanism clamps the aluminum box serving as the capacitor shell with the opening of the aluminum box facing downward. The aluminum box is controlled to move downward by the lifting mechanism until the lower end of the aluminum box is immersed in water. The water can seal the aluminum box with an opening, thereby facilitating air tightness testing of the aluminum box. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 This is a schematic diagram of the structure of the utility model when clamping a box;

[0015] Figure 2 It is a schematic diagram of the structure of the utility model when conducting air tightness test;

[0016] Figure 3 This is a schematic diagram of the structure when the box is hung on the hook;

[0017] Figure 4 It is a structural schematic diagram of the clamping mechanism clamping the box;

[0018] Figure 5 It is a schematic diagram of the side structure when the clamping mechanism does not clamp the box;

[0019] Figure 6 It is a schematic diagram of the side structure when the clamping mechanism clamps the box;

[0020] Figure 7 It is the structural schematic diagram of the distance rod;

[0021] Figure 8 It is a structural schematic diagram of the distance rod when the elastic bending piece is bent;

[0022] Explanation of the accompanying symbols: 1. Lifting mechanism; 11. Screw rod; 2. Clamping mechanism; 21. Clamping motor; 22. Load-bearing plate; 23. Clamping plate; 24. Threaded rod; 25. Guide plate; 3. Water tank; 4. Box body; 5. Hook; 6. Distance rod; 61. Connecting part; 62. Adjusting part; 7. Elastic bending piece; 71. Color warning coating.

[0023] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0025] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0026] Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0027] Example:

[0028] Figure 1-Figure 8 The utility model provides a capacitor air pressure test bench, which includes a lifting mechanism 1, a clamping mechanism 2 and a water storage tank 3. The lifting mechanism 1 is fixed on a frame, and an electric control system for controlling the lifting mechanism 1 and the clamping mechanism 2 is arranged in the frame. The lifting mechanism 1 includes a vertically arranged screw rod 11 and a lifting motor capable of driving the screw rod 11 to rotate. The clamping mechanism 2 includes a clamping motor 21, and the clamping motor 21 is movably connected to the screw rod 11 through a bearing plate 22, and the bearing plate 22 is threadedly connected to the screw rod 11. Then, the rotation of the screw rod 11 can drive the supporting plate 22 to move up and down together with the clamping motor 21. Two clamping plates 23 are connected to the upper part of the clamping motor 21. The clamping motor 21 can control the two clamping plates 23 to approach each other and clamp the aluminum box 4, which is the outer shell of the capacitor. The water tank 3 is arranged under the clamping plate 23. When the box 4 is clamped, the lifting mechanism 1 is controlled to drive the clamping mechanism 2 to descend, so that the lower end opening of the box 4 can be immersed in the water of the water tank 3, thereby sealing the opening of the box 4.

[0029] A threaded rod 24 is connected to the output end of the clamping motor 21 and can control the rotation of the threaded rod 24. Opposite threads are provided at both ends of the threaded rod 24. Two clamping plates 23 are threadedly connected to the two ends of the threaded rod 24. When the clamping motor 21 controls the rotation of the threaded rod 24, the two clamping plates 23 approach each other / principle. The clamping mechanism 2 also includes a guide plate 25. The guide plate 25 is used to limit the rotation of the clamping plate 23 so that it can be normally controlled by the clamping motor 21 to only make bidirectional translational motion to achieve the clamping function. In this embodiment, there is a structural block on the guide plate 25 that cooperates with the preset groove on the clamping plate 23. There are three planes on the structural block that are parallel to the axial direction of the threaded rod 24. When the clamping plate 23 is about to rotate, it will receive mechanical interference due to the cooperation relationship, thereby restricting the rotation of the clamping plate 23, and the threaded rod 24 controls the translation of the clamping plate 23.

[0030] An adhesive layer is provided on the opposite sides of the two clamping plates 23. The friction force of the adhesive layer is greater than that of the clamping plates 23 made of metal with a smooth surface, so the clamping force is greater and the box body 4 is not easy to fall off.

[0031] The lower end of the clamping motor 21 is connected with a hook 5, which is parallel to the clamping plate 23 and located directly below the two clamping plates 23. The position of the hook 5 is pre-set, and the hook 5 can hook the box 4 with an opening, limit the position of the box 4, and ensure that the two clamping plates 23 can clamp the box 4.

[0032] The lower end of the hook 5 is connected to a distance rod 6, and the lower end of the distance rod 6 can abut the bottom of the water tank 3. The distance rod 6, the length of the hook 5, and the liquid level in the water tank 3 are all preset to ensure that the opening at the lower end of the box body 4 is immersed in water.

[0033] An elastic bent piece 7 is connected to the lower end of the distance rod 6, and the outer bend of the elastic bent piece 7 faces the bottom of the water tank 3. When the lifting mechanism 1 controls the clamping mechanism 2 to descend, the elastic bent piece 7 abuts against the bottom of the water tank 3. The elastic bent piece 7 can be slightly bent and will not produce a mechanical collision with the water tank 3. The outer bend of the elastic bent piece 7 faces the bottom of the water tank 3, and the inner bend of the elastic bent piece 7 is provided with a color warning coating 71. When the elastic bent piece 7 is bent, the color warning coating 71 is displayed along with the inner bend. The staff can observe the color warning coating 71, which indirectly proves that the opening of the box body 4 is immersed in water and can perform normal air tightness detection. The color warning coating 71 adopts obvious colors such as red and orange. After the lifting mechanism 1 controls the clamping mechanism 2 to rise, the elastic bent piece 7 no longer abuts against the water tank 3, and the elastic bent piece 7 returns to its original state.

[0034] The distance rod 6 includes a connecting portion 61 and an adjusting portion 62. The connecting portion 61 is directly connected to the hook 5, and the adjusting portion 62 is threadedly connected to the connecting portion 61. The elastic bent piece 7 is connected to the lower end of the adjusting portion 62. The staff can threadably rotate the adjusting portion 62 to move it away from / closer to the connecting portion 61 to change the length of the entire distance rod 6.

[0035] Working principle:

[0036] The staff hangs the box 4 that needs to be inspected on the hook 5 and holds the box 4 with one hand. After hanging it, the staff presses the box 4 forward with his hand to make the upper end of the box 4 abut against the clamping motor 21. Since the hook 5 is flush with the clamping motor 21, when the box 4 abuts against the clamping motor 21 and is hung on the hook 5, the lower end opening of the box 4 is parallel to the ground. At this time, the clamping mechanism 2 is started to clamp the box 4. The staff releases the hand pressing forward, and then starts the lifting mechanism 1 to control the clamping mechanism 2 to lower the box 4 until the opening at the lower end of the box 4 is immersed in the water of the water tank 3. At this time, the upper end of the aluminum box is connected to the relevant equipment for air tightness detection for detection. After the detection is completed, the lifting mechanism 1 and the clamping mechanism 2 are reset, and the staff takes away the box 4.

[0037] The above description is only an optional embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A capacitor air pressure test bench, It is characterized in that The invention comprises a lifting mechanism (1) and a clamping mechanism (2), wherein the lifting mechanism (1) comprises a vertically arranged screw rod (11) and a lifting motor capable of driving the screw rod (11) to rotate, and the clamping mechanism (2) comprises a clamping motor (21), wherein the clamping motor (21) is movably connected to the screw rod (11) via a bearing plate (22), two clamping plates (23) are connected to the output end of the clamping motor (21), and the clamping motor (21) can control the two clamping plates (23) to approach each other and clamp a box body (4), and a water storage tank (3) is provided below the clamping plates (23).

2. The capacitor air pressure test bench according to claim 1, It is characterized in that The output end of the clamping motor (21) is connected to a threaded rod (24) and is capable of controlling the rotation of the threaded rod (24). The two ends of the threaded rod (24) are provided with opposite threads. The two clamping plates (23) are threadedly connected to the two ends of the threaded rod (24). The clamping mechanism (2) also includes a guide plate (25). The guide plate (25) is clamped with the clamping plate (23) to limit the rotation of the clamping plate (23).

3. The capacitor air pressure test bench according to claim 1, It is characterized in that An adhesive layer is provided on the opposite sides of the two clamping plates (23).

4. The capacitor air pressure test bench according to claim 1, It is characterized in that The lower end of the clamping motor (21) is connected with a hook (5), and the hook (5) is parallel to the clamping plate (23) and is located directly below the two clamping plates (23).

5. The capacitor air pressure test bench according to claim 4, It is characterized in that The lower end of the hook (5) is connected to a distance rod (6), and the lower end of the distance rod (6) can abut against the bottom of the water storage tank (3).

6. The capacitor air pressure test bench according to claim 5, It is characterized in that The lower end of the distance rod (6) is connected to an elastic curved piece (7), the outer curved portion of the elastic curved piece (7) faces the bottom of the water storage tank (3), and the inner curved portion of the elastic curved piece (7) is provided with a color warning coating (71).

7. The capacitor air pressure test bench according to claim 6, It is characterized in that The distance rod (6) comprises a connecting portion (61) and an adjusting portion (62), wherein the connecting portion (61) is directly connected to the hook (5), the adjusting portion (62) is threadedly connected to the connecting portion (61), and the elastic bent piece (7) is connected to the lower end of the adjusting portion (62).

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