Capacitor leak detection apparatus

Abstract

This utility model relates to the field of leak detection equipment, and more particularly to capacitor leak detection equipment, including an operating table. A water bucket is fixedly connected to the upper center of the operating table, and a sealing plate is fixedly connected to the inner center of the water bucket. An elastic support mechanism is provided at the upper end of the sealing plate, and a placement plate is provided above the elastic support mechanism. An inclined seat is fixedly connected to the bottom center of the placement plate, and a waterproof motor is fixedly installed on the inner bottom of the water bucket. A cylinder drives the sealing seat to quickly press the water bucket together, forming a sealed space. Combined with a vacuum pump, the capacitor is more easily exposed for minor leaks under negative pressure. In addition, the waterproof motor drives an L-shaped rod to periodically lift the placement plate, causing the capacitor to shake repeatedly in the liquid, making bubble observation more obvious and significantly improving leak detection efficiency and accuracy.

Description

Technical Field

[0001] This utility model relates to the field of leak detection equipment technology, and in particular to capacitor leak detection equipment. Background Technology

[0002] In the field of electronic component manufacturing, the sealing performance of capacitors directly affects their reliability and service life. Problems such as leakage, air leakage, or poor sealing in capacitors can lead to short circuits, capacitance decay, or even equipment failure. Therefore, rigorous sealing tests must be performed on capacitors during the production process.

[0003] Traditional leak detection methods mainly include visual inspection, bubble method, and pressure decay method. Among them, the bubble method is widely used due to its simplicity and low cost. This method typically involves immersing the capacitor in a liquid (such as water or alcohol) and observing whether bubbles are generated by applying pressure or creating a vacuum, thereby determining whether a leak exists. A search revealed a utility model patent with authorization publication number CN219495562U, which discloses a capacitor leak detection device, relating to the field of capacitor technology. This utility model includes a device body and a leak detection mechanism. An electric drive unit is fixedly connected to the top of the device body. A capacitor is disposed below the leak detection mechanism, and a placement groove is formed at the bottom of the capacitor. A base plate is fixedly connected to the bottom of the placement groove. A drive rod is fixedly connected to the leak detection mechanism, and an auxiliary rod is fixedly connected to the end of the drive rod away from the leak detection mechanism.

[0004] However, existing bubble-based leak detection methods can only detect larger leaks and are ineffective at detecting minute leaks. Therefore, improvements are needed. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing bubble-based leak detection methods, which can only detect larger leaks and are difficult to detect minute leaks, and to propose a capacitor leak detection device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A capacitor leak detection device includes an operating table. A water bucket is fixedly connected to the upper center of the operating table. A sealing plate is fixedly connected to the inner center of the water bucket. An elastic support mechanism is provided at the upper end of the sealing plate. A placement plate is provided above the elastic support mechanism. An inclined seat is fixedly connected to the bottom center of the placement plate. A waterproof motor is fixedly installed at the inner bottom of the water bucket. A rotating shaft is fixedly connected to the end of the output shaft of the waterproof motor. The rotating shaft passes through the sealing plate and is connected to the sealing plate through a sealed bearing. An L-shaped rod is fixedly connected to the shaft body of the rotating shaft. The end of the L-shaped rod abuts against the inclined surface of the inclined seat.

[0008] Furthermore, in a preferred configuration, a limiting ring is fixedly connected to the upper center of the placement plate, and the limiting ring is circular. The limiting ring facilitates the placement of the capacitor to be tested on the placement plate.

[0009] Furthermore, in a preferred configuration, a bracket is fixedly connected to the upper edge of the operating table, a cylinder is fixedly mounted on the top of the bracket, the telescopic shaft of the cylinder passes through the bracket and is slidably connected to the bracket, and a sealing seat is fixedly connected to the end of the telescopic shaft. The sealing seat is slidably connected to the inner side of the upper opening of the water bucket. By pushing the sealing seat with the cylinder, the sealing seat seals the water bucket.

[0010] Furthermore, in a preferred configuration, an air extraction pipe is fixedly connected inside the sealing seat, and the air extraction pipe penetrates the sealing seat. This air extraction pipe facilitates the evacuation of air from the water tank, improving the accuracy of the test results.

[0011] Furthermore, in a preferred configuration, support legs are fixedly connected to each of the four bottom corners of the operating table, and these support legs are square column-shaped. The support legs provide overall support.

[0012] Furthermore, in a preferred configuration, the elastic support mechanism includes a hollow sleeve fixedly connected to the upper end of the sealing plate. A sliding column is slidably connected inside the hollow sleeve, and a connecting piece is fixedly connected to the top of the sliding column. The connecting piece is fixedly connected to the bottom of the placement plate. A spring is disposed inside the hollow sleeve, with one end fixedly connected to the sliding column and the other end fixedly connected to the inner surface of the hollow sleeve. This elastic support mechanism provides auxiliary resetting for the periodic lifting and lowering of the placement plate.

[0013] Furthermore, in a preferred configuration, a retaining ring is fixedly connected to the outside of the hollow sleeve, and a corrugated sleeve is fixedly connected between the retaining ring and the connecting piece. The corrugated sleeve provides waterproof protection for the spring.

[0014] The beneficial effects of this utility model are as follows: the cylinder drives the sealing seat to quickly press the water tank together to form a sealed space. Combined with the vacuuming pipe, the capacitor is more likely to expose small leaks under negative pressure. In addition, the waterproof motor drives the L-shaped rod to periodically lift the placement plate, causing the capacitor to shake repeatedly in the liquid, making the bubble observation more obvious and significantly improving the efficiency and accuracy of leak detection. Attached Figure Description

[0015] Figure 1 This is a three-dimensional view of the overall structure of the capacitor leak detection device proposed in this utility model;

[0016] Figure 2 The capacitor leak detection device proposed in this utility model Figure 1 A frontal sectional perspective of a three-dimensional view;

[0017] Figure 3 The capacitor leak detection device proposed in this utility model Figure 2 Enlarged view of the elastic support mechanism structure;

[0018] Figure 4 The capacitor leak detection device proposed in this utility model Figure 2 A partial structural diagram.

[0019] In the diagram: 1. Operating table; 2. Water bucket; 3. Sealing plate; 4. Elastic support mechanism; 5. Placement plate; 6. Inclined seat; 7. Waterproof motor; 8. Rotating shaft; 9. L-shaped rod; 10. Limiting ring; 11. Bracket; 12. Cylinder; 13. Sealing seat; 14. Air extraction pipe; 15. Support leg; 41. Hollow sleeve; 42. Sliding column; 43. Connecting piece; 44. Spring; 45. Fixing ring; 46. Corrugated sleeve. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Reference Figure 1-4 The capacitor leak detection device includes an operating table 1. A water bucket 2 is fixedly connected to the upper center of the operating table 1. A sealing plate 3 is fixedly connected to the inner center of the water bucket 2. An elastic support mechanism 4 is provided at the upper end of the sealing plate 3. A placement plate 5 is provided above the elastic support mechanism 4. The elastic support mechanism 4 assists in resetting the periodic lifting and lowering of the placement plate 5. The elastic support mechanism 4 includes a hollow sleeve 41 fixedly connected to the upper end of the sealing plate 3. A sliding column 42 is slidably connected inside the hollow sleeve 41. A connecting piece 43 is fixedly connected to the top of the sliding column 42 and is fixedly connected to the bottom of the placement plate 5. A spring 44 is provided inside the hollow sleeve 41. One end of the spring 44 is fixedly connected to the sliding column 42, and the other end of the spring 44 is fixedly connected to the inner surface of the hollow sleeve 41. A fixing ring 45 is fixedly connected to the outside of the hollow sleeve 41. A corrugated sleeve 46 is fixedly connected between the fixing ring 45 and the connecting piece 43. The corrugated sleeve 46 provides waterproof protection for the spring 44.

[0022] Reference Figure 2 , Figure 4A ramp seat 6 is fixedly connected to the bottom center of the placement plate 5. A waterproof motor 7 is fixedly installed on the inner bottom of the water tank 2. A rotating shaft 8 is fixedly connected to the end of the output shaft of the waterproof motor 7. The rotating shaft 8 passes through the sealing plate 3 and is connected to the sealing plate 3 through a sealed bearing. An L-shaped rod 9 is fixedly connected to the shaft of the rotating shaft 8, and the end of the L-shaped rod 9 abuts against the ramp surface of the ramp seat 6. A limit ring 10 is fixedly connected to the upper center of the placement plate 5, and the limit ring 10 is circular. The limit ring 10 facilitates the placement of the capacitor to be tested on the placement plate 5.

[0023] Reference Figure 1-2 A bracket 11 is fixedly connected to the upper edge of the operating platform 1. A cylinder 12 is fixedly installed on the top of the bracket 11. The telescopic shaft of the cylinder 12 passes through the bracket 11 and is slidably connected to it. A sealing seat 13 is fixedly connected to the end of the telescopic shaft. The sealing seat 13 is slidably connected to the inner side of the upper opening of the water bucket 2. The cylinder 12 pushes the sealing seat 13, causing the sealing seat 13 to seal the water bucket 2. An air extraction pipe 14 is fixedly connected inside the sealing seat 13 and passes through it. The air extraction pipe 14 facilitates the evacuation of air from the water bucket 2, improving the accuracy of the test results. Support legs 15, which are square columns, are fixedly connected to the four corners of the bottom of the operating platform 1. The support legs 15 provide support for the entire system.

[0024] The specific implementation process of this utility model is as follows: In use, the capacitor to be tested is first placed at the limiting ring 10 on the placement plate 5. Then, the sealing seat 13 is driven by the cylinder 12 to quickly press the water tank 2 to form a sealed space. Combined with the vacuum pipe 14 to draw a vacuum, the capacitor is more likely to expose small leaks under negative pressure. In addition, the waterproof motor 7 drives the L-shaped rod 9 to periodically lift the placement plate 5. Then, with the reset of the spring 44 in the elastic support mechanism 4, the capacitor can be repeatedly shaken in the liquid, making the bubble observation more obvious and significantly improving the leak detection efficiency and accuracy.

[0025] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A capacitor leak detection device, comprising an operating table (1), characterized in that, A water bucket (2) is fixedly connected to the upper middle part of the operating table (1). A sealing plate (3) is fixedly connected to the inner middle part of the water bucket (2). An elastic support mechanism (4) is provided at the upper end of the sealing plate (3). A placement plate (5) is provided above the elastic support mechanism (4). An inclined seat (6) is fixedly connected to the bottom center of the placement plate (5). A waterproof motor (7) is fixedly installed at the inner bottom of the water bucket (2). A rotating shaft (8) is fixedly connected to the end of the output shaft of the waterproof motor (7). The rotating shaft (8) passes through the sealing plate (3) and is connected to the sealing plate (3) through a sealing bearing. An L-shaped rod (9) is fixedly connected to the shaft of the rotating shaft (8). The end of the L-shaped rod (9) abuts against the inclined surface of the inclined seat (6).

2. The capacitor leak detection device according to claim 1, characterized in that, The upper middle part of the placement plate (5) is fixedly connected to a limiting ring (10), and the limiting ring (10) is circular.

3. The capacitor leak detection device according to claim 1, characterized in that, The upper edge of the operating table (1) is fixedly connected to a bracket (11), and a cylinder (12) is fixedly installed on the top of the bracket (11). The telescopic shaft of the cylinder (12) passes through the bracket (11) and is slidably connected to the bracket (11). A sealing seat (13) is fixedly connected to the end of the telescopic shaft. The sealing seat (13) is slidably connected to the inner side of the upper opening of the water bucket (2).

4. The capacitor leak detection device according to claim 3, characterized in that, The sealing seat (13) is internally fixedly connected to an air extraction pipe (14), and the air extraction pipe (14) is configured to penetrate the sealing seat (13).

5. The capacitor leak detection device according to claim 1, characterized in that, The bottom four corners of the operating table (1) are all fixedly connected with support legs (15), and the support legs (15) are square columns.

6. The capacitor leak detection device according to claim 1, characterized in that, The elastic support mechanism (4) includes a hollow sleeve (41) fixedly connected to the upper end of the sealing plate (3). A sliding column (42) is slidably connected inside the hollow sleeve (41). A connecting piece (43) is fixedly connected to the top of the sliding column (42). The connecting piece (43) is fixedly connected to the bottom of the placement plate (5). A spring (44) is provided inside the hollow sleeve (41). One end of the spring (44) is fixedly connected to the sliding column (42), and the other end of the spring (44) is fixedly connected to the inner surface of the hollow sleeve (41).

7. The capacitor leak detection device according to claim 6, characterized in that, The hollow sleeve (41) is fixedly connected to the outside by a fixing ring (45), and a corrugated sleeve (46) is fixedly connected between the fixing ring (45) and the connecting piece (43).

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