High and low temperature damp heat test device for fan capacitor

Abstract

The utility model relates to a high-low temperature damp heat test device for a fan capacitor, which comprises a test box body, a transparent observation window is arranged on the side of the test box body, a transverse moving plate is arranged on the top side in the test box body in the left-right direction, and a transverse water absorption sponge is arranged on the top of the transverse moving plate. The top side of the transverse water absorption sponge abuts against the top of the inner wall of the test box body, a vertical moving plate is arranged in the test box body in the vertical direction, a vertical liquid absorption sponge strip is arranged on the side, close to the transparent observation window, of the vertical moving plate, and the transverse moving plate and the vertical moving plate can move in the front-back direction of the test box body. According to the capacitor test box, fog liquid on the top of the test box body and the transparent observation window can be effectively absorbed in time through the transverse water absorption sponge and the vertical liquid absorption sponge strip, the fog liquid is prevented from blocking observation sight, an operator can clearly observe the state of a capacitor in the test process and accurately record test data, and a reliable basis is provided for product performance evaluation.

Description

Technical Field

[0001] This utility model relates to the technical field of capacitor performance testing equipment, and in particular to a high and low temperature damp heat testing device for wind turbine capacitors. Background Technology

[0002] In the production, research and development, and quality inspection of wind turbine capacitors, high and low temperature damp heat testing is a key method for evaluating their performance reliability. By simulating different temperature and humidity environments, various performance indicators of the capacitors can be tested under actual use scenarios.

[0003] However, existing testing equipment has significant drawbacks. During testing, a large amount of condensation accumulates in the observation window on the side and the top of the test chamber. This condensation severely hinders the operator's real-time observation of the capacitors inside the chamber, making it difficult to accurately record key phenomena during the test, such as whether the capacitors are deformed or show signs of leakage. Furthermore, condensation dripping can contaminate the capacitors, interfering with the accuracy of the test data, and may even damage the capacitors due to moisture corrosion, rendering the test results unreliable, delaying product development cycles, and increasing production costs. Utility Model Content

[0004] This utility model addresses the shortcomings of existing technologies by providing a high and low temperature damp heat testing device for wind turbine capacitors. The specific technical solution is as follows:

[0005] A high and low temperature humidity test device for wind turbine capacitors includes a test chamber body. A transparent observation window is provided on the side of the test chamber body. A horizontal moving plate is provided on the top side of the test chamber body in the left-right direction. A horizontal absorbent sponge is provided on the top of the horizontal moving plate. The top side of the horizontal absorbent sponge abuts against the top of the inner wall of the test chamber body. A vertical moving plate is provided on the inside of the test chamber body in the up-down direction. A vertical absorbent sponge strip is provided on the side of the vertical moving plate near the transparent observation window. The side of the vertical absorbent sponge strip away from the vertical moving plate abuts against the transparent observation window. Both the horizontal and vertical moving plates can move in the front-back direction of the test chamber body.

[0006] As an improvement to the above technical solution: a first liquid receiving part is provided below the horizontal absorbent sponge, the first liquid receiving part includes a top placement plate connected to the vertical moving plate, the top placement plate extends to the left and right direction of the test chamber body, the top of the top placement plate is provided with a top liquid receiving groove, a bottom placement plate is provided below the vertical absorbent sponge strip, the top of the bottom placement plate is provided with a top placement groove, and the top placement groove extends to the front and rear direction of the test chamber body.

[0007] As an improvement to the above technical solution: the top liquid inlet is snapped onto the top of the top placement plate, and the top placement slot is snapped onto the top of the bottom placement plate.

[0008] As an improvement to the above technical solution, it also includes a moving component for driving the horizontal moving plate and the vertical moving plate to move in the front-rear direction of the test chamber body. The moving component includes an electric telescopic rod installed inside the front side of the test chamber body. The top end of the vertical moving plate is fixedly connected to the bottom end of the horizontal moving plate, and the output rod of the electric telescopic rod is connected to the vertical moving plate.

[0009] As an improvement to the above technical solution: the test chamber body is equipped with a test rack inside, and a door is installed at the front end of the test chamber body.

[0010] The beneficial effects of this utility model are:

[0011] This application utilizes horizontally absorbent sponges and vertically absorbent foam strips to effectively and promptly absorb the condensation on the top of the test chamber and the transparent observation window. This prevents condensation from obstructing the view, allowing operators to clearly observe the capacitor's condition during testing, accurately record test data, and provide a reliable basis for product performance evaluation. The movement of the horizontal and vertical moving plates ensures more thorough condensation removal, reduces contamination of the capacitors by condensation droplets, avoids test errors caused by condensation, ensures that test results accurately reflect the capacitor's performance, and improves the accuracy of product quality testing. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 ;

[0013] Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 ;

[0014] Figure 3 for Figure 1 A magnified structural diagram of point A in the middle.

[0015] Reference numerals in the attached diagram: 1. Test chamber body; 2. Transparent observation window; 3. Chamber door; 4. Test rack; 5. Electric telescopic rod; 6. Horizontal moving plate; 7. Horizontal absorbent sponge; 8. Vertical moving plate; 9. Vertical absorbent sponge strip; 10. Top placement plate; 11. Top liquid receiving tank; 12. Bottom placement plate; 13. Top placement trough. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0017] Example

[0018] Please refer to Figures 1-3The present invention aims to provide a high and low temperature damp heat test device for wind turbine capacitors, which solves the problem of fog affecting observation and test results in existing test devices, ensures the smooth progress of the test process, and improves the accuracy and reliability of test data.

[0019] The device includes a test chamber body 1, which has a temperature and humidity control system of existing technology. The test chamber body 1 can be a test chamber of model CLM-408, VLB-THS-1000, etc. The shell of the test chamber body 1 is made of high-strength, heat-insulating materials, such as double-layer stainless steel sandwiched with polyurethane foam board, which can not only ensure structural strength, but also effectively reduce heat exchange between the inside and outside of the chamber and maintain a stable temperature and humidity environment inside the chamber.

[0020] A transparent observation window 2 is provided on the side of the test chamber body 1. The transparent observation window 2 is made of tempered glass that is resistant to high temperature and high humidity and has good optical performance. It is tightly connected to the test chamber body 1 by a sealing strip to ensure the airtightness of the test chamber and prevent the leakage of temperature and humidity inside the chamber. At the same time, it allows the operator to clearly observe the test conditions inside the chamber.

[0021] A horizontal sliding plate 6 is installed on the top side of the test chamber body 1 along the left-right direction. The horizontal sliding plate 6 is connected to the inner top wall of the test chamber body 1 via a sliding rail. The sliding rail is made of stainless steel and the surface is finely polished to ensure smooth sliding of the horizontal sliding plate 6. A horizontal absorbent sponge 7 is attached to the top of the horizontal sliding plate 6. The horizontal absorbent sponge 7 is made of a highly absorbent sponge material that is resistant to temperature and humidity changes, such as polyester fiber absorbent sponge. Its top side is in close contact with the top of the inner wall of the test chamber body 1, which can effectively absorb the mist on the top of the test chamber.

[0022] A vertically moving plate 8 is installed inside the test chamber body 1 along the vertical direction. The vertically moving plate 8 is also connected to the inner wall of the test chamber body 1 via a sliding rail. The sliding rail is vertically positioned to ensure stable vertical movement of the vertically moving plate 8. A vertical absorbent sponge strip 9 is glued to the side of the vertically moving plate 8 closest to the transparent observation window 2. The absorbent sponge strip 9 is made of soft, highly absorbent sponge material that will not scratch the observation window. The side of the strip away from the vertically moving plate 8 can contact the transparent observation window 2 to remove any mist or liquid on it. Both the horizontally moving plate 6 and the vertically moving plate 8 can move in the front-back direction of the test chamber body 1 to achieve comprehensive cleaning of the mist or liquid.

[0023] Specifically, the front and back directions are Figure 1 The X-axis shown represents the left and right directions. Figure 1 The Y-axis shown has vertical directions as shown. Figure 1 The Z-direction is shown.

[0024] In an optional embodiment of this application, a first liquid receiving part is provided below the horizontal absorbent sponge 7. The first liquid receiving part includes a top placement plate 10 connected to the vertical moving plate 8. The top placement plate 10 and the vertical moving plate 8 are connected by welding or bolts to ensure a firm connection. The top placement plate 10 extends along the left-right direction of the test chamber body 1 to increase the liquid receiving area. A top liquid receiving groove 11 is formed on the top of the top placement plate 10. The top liquid receiving groove 11 is integrally formed with the top placement plate 10 to ensure sealing and prevent leakage of mist. A bottom placement plate 12 is provided below the vertical absorbent sponge strip 9. The bottom placement plate 12 is connected to the vertical moving plate 8 by welding or bolts. A top placement groove is formed on the top of the bottom placement plate 12. The top placement groove extends along the front-back direction of the test chamber body 1 to collect the mist absorbed by the vertical absorbent sponge strip 9.

[0025] This application also includes a moving assembly for moving the horizontal moving plate 6 and the vertical moving plate 8 in the front-rear direction of the test chamber body 1. The moving assembly includes an electric telescopic rod 5 installed inside the front side of the test chamber body 1. The electric telescopic rod 5 is fixed to the inner front wall of the test chamber body 1 by bolts to ensure a stable installation. The top end of the vertical moving plate 8 can be fixedly connected to the bottom end of the horizontal moving plate 6 by welding or bolts to form an integral moving structure. The output rod of the electric telescopic rod 5 is connected to the vertical moving plate 8 by threaded connection or pin connection to ensure stable power transmission. By extending and retracting the electric telescopic rod 5, the horizontal moving plate 6 and the vertical moving plate 8 can be moved back and forth, allowing the horizontal absorbent sponge 7 and the vertical absorbent sponge strip 9 to better clean the mist from the top of the test chamber and the observation window.

[0026] Inside the test chamber body 1, there is a test rack 4. The test rack 4 is made of stainless steel and is fixed to the bottom or side wall of the test chamber body 1 by welding or bolting. It is used to place the test samples of the fan capacitor and ensure that the test samples are stably placed inside the test chamber. A door 3 is installed on the front side of the test chamber body 1. The door 3 is connected to the test chamber body 1 by a hinge and is equipped with a sealing strip to ensure the airtightness of the door 3 when closed and prevent temperature and humidity leakage.

[0027] Specifically, during the high and low temperature humidity test of the fan capacitor, the fan capacitor sample is placed on the test rack 4, and the chamber door 3 is closed. The temperature and humidity control system of the test chamber is activated to bring the test chamber into the set temperature and humidity environment. During the test, if fog is observed on the top of the test chamber or the transparent observation window 2, the electric telescopic rod 5 is activated. The output rod of the electric telescopic rod 5 extends or retracts, driving the vertical moving plate 8 and the horizontal moving plate 6 to move back and forth within the test chamber body 1. When the horizontal moving plate 6 moves, the horizontal absorbent sponge 7 at its top slides on the top of the test chamber body 1, absorbing the fog on the top, and the fog drips into the top liquid receiving groove 11 on the top placement plate 10. At the same time, when the vertical moving plate 8 moves, the vertical absorbent sponge strip 9 slides on the surface of the transparent observation window 2, clearing the fog on the observation window, and the fog drips into the top placement groove on the bottom placement plate 12. After the test, the temperature and humidity control system of the test chamber is turned off, the chamber door 3 is opened, and the test sample is taken out. Regularly clean the accumulated liquid in the top liquid receiving tank 11 and the top placement tank, disassemble the top liquid receiving tank 11 and the top placement tank for cleaning, and reinstall them for the next test.

[0028] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high and low temperature damp heat testing device for fan capacitors, characterized in that: The test chamber includes a test chamber body (1), a transparent observation window (2) on the side of the test chamber body (1), a horizontal moving plate (6) on the top side of the test chamber body (1) in the left and right direction, a horizontal absorbent sponge (7) on the top of the horizontal moving plate (6), the top side of the horizontal absorbent sponge (7) abutting against the top of the inner wall of the test chamber body (1), a vertical moving plate (8) on the inside of the test chamber body (1) in the up and down direction, a vertical absorbent sponge strip (9) on the side of the vertical moving plate (8) near the transparent observation window (2), and the side of the vertical absorbent sponge strip (9) away from the vertical moving plate (8) abutting against the transparent observation window (2), and both the horizontal moving plate (6) and the vertical moving plate (8) can move in the front and back direction of the test chamber body (1).

2. The high and low temperature damp heat test device for wind turbine capacitors according to claim 1, characterized in that: The first liquid receiving part is provided below the horizontal absorbent sponge (7). The first liquid receiving part includes a top placement plate (10) connected to the vertical moving plate (8). The top placement plate (10) extends to the left and right directions of the test chamber body (1). The top of the top placement plate (10) is provided with a top liquid receiving groove (11). The bottom placement plate (12) is provided below the vertical absorbent sponge strip (9). The top of the bottom placement plate (12) is provided with a top placement groove (13). The top placement groove (13) extends to the front and rear directions of the test chamber body (1).

3. The high and low temperature damp heat test device for wind turbine capacitors according to claim 2, characterized in that: The top liquid inlet (11) is snapped onto the top of the top placement plate (10), and the top placement slot (13) is snapped onto the top of the bottom placement plate (12).

4. The high and low temperature damp heat test device for wind turbine capacitors according to claim 3, characterized in that: It also includes a moving assembly for moving the horizontal moving plate (6) and the vertical moving plate (8) in the front-back direction of the test chamber body (1). The moving assembly includes an electric telescopic rod (5) installed inside the front side of the test chamber body (1). The top end of the vertical moving plate (8) is fixedly connected to the bottom end of the horizontal moving plate (6). The output rod of the electric telescopic rod (5) is connected to the vertical moving plate (8).

5. The high and low temperature damp heat test device for wind turbine capacitors according to claim 1, characterized in that: The test chamber body (1) is equipped with a test rack (4) inside, and a door (3) is installed on the front side of the test chamber body (1).

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