Power box airtightness detection device
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUBEI CHENBAI INTELLIGENT TECHNOLOGY CO LTD
- Filing Date
- 2025-09-10
- Publication Date
- 2026-06-23
AI Technical Summary
The existing power box airtightness testing device cannot quickly complete the drying process after the test, which affects the subsequent work and reduces the practicality of the device.
An airtightness testing device including a C-shaped base was designed. It has a built-in drying mechanism. The fan is driven by a motor-driven transmission rod and a gear rack structure to perform rapid drying. The device is clamped and moved by an electric telescopic rod and a rotating disk structure. The controller controls the coordinated operation of the various components.
This technology enables rapid drying and stable clamping of the power box, improving testing efficiency and adaptability, and ensuring the smooth progress of subsequent work.
Smart Images

Figure CN224398907U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of power box air tightness testing technology, and in particular to a power box air tightness testing device. Background Technology
[0002] The airtightness of the power housing is directly related to the safety and stability of equipment operation. Its importance lies first and foremost in protecting core components. The power housing usually contains precision components such as motors, circuit boards, and sensors. Through airtightness testing, potential problems such as gaps and poor sealing of interfaces can be detected in advance, thus preventing damage caused by the intrusion of external contaminants from the source.
[0003] Air tightness testing is crucial for the energy efficiency and functional integrity of power systems. Poor sealing of the enclosure can lead to abnormal internal air pressure, affecting heat dissipation efficiency and potentially causing equipment to overheat and reduce its operating performance. For power devices involving gas circulation or pressure control, leaks can also directly lead to increased energy consumption, unstable output power, and even system failure.
[0004] The power box airtightness testing device consists of an air source cylinder, sealing fixtures, a compressor sensor, and a control structure. Its most prominent drawback is low testing efficiency and poor adaptability. To solve these problems, existing technologies have optimized the automated fixture replacement structure, which has effectively improved work efficiency, adaptability, and testing accuracy. However, after testing the power box, it is impossible to quickly dry the power box, which delays subsequent work and reduces the practicality of the device. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a power box airtightness testing device, which aims to improve the problem that the existing power box airtightness testing device cannot quickly dry the power box after testing.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a power box airtightness testing device, including a C-shaped base, a drying mechanism provided on the inner side of the C-shaped base, the drying mechanism being used to dry the power box that has completed the airtightness test, and a clamping mechanism provided on the upper left side of the C-shaped base, the clamping mechanism being used to clamp the power box to be tested and insert it into water for testing;
[0007] The drying mechanism includes a first motor, which is fixedly connected to the front interior of the C-shaped base. A transmission rod is fixedly connected to the output end of the first motor. Hollow plates are fixedly connected to the front and rear interior sides of the C-shaped base. Gears are rotatably connected to the inner center of the two hollow plates. Hollow plates are slidably connected to the outer side of the hollow plates. A rack is fixedly connected to the right interior side of the hollow plates and meshes with the gears. A pulley is fixedly connected to the front and rear exterior sides of the transmission rod. A pulley is fixedly connected to the outer side of the gears. The pulley is connected to the pulley via a transmission belt. Multiple fans are fixedly connected to adjacent sides of the two hollow plates.
[0008] As a further description of the above technical solution:
[0009] The clamping mechanism includes an electric telescopic rod, which is fixedly connected to the inside left side of the C-shaped seat. A hollow cover is fixedly connected to the bottom end of the electric telescopic rod. A second motor is fixedly connected to the middle of the bottom end of the hollow cover. A hollow disk is fixedly connected to the outer bottom of the hollow cover. A rotating disk is rotatably connected inside the hollow disk. The output end of the second motor passes through the hollow disk and is fixedly connected to the rotating disk. Multiple limiting grooves are opened inside the rotating disk. Sliding columns are slidably connected inside the limiting grooves. An L-shaped plate is fixedly connected to the bottom end of each of the multiple sliding columns.
[0010] As a further description of the above technical solution:
[0011] The upper side of the C-shaped seat has a cavity. A third motor is fixedly connected to the top left outer wall of the C-shaped seat. The output end of the third motor passes through the cavity and is fixedly connected to a lead screw. An I-shaped block is threaded to the outside of the lead screw. The bottom of the I-shaped block is fixedly connected to an electric telescopic rod.
[0012] As a further description of the above technical solution:
[0013] A filter screen is fixedly connected to the bottom upper side of the C-shaped base, and multiple fans are fixedly connected to the upper and lower sides of the interior of the C-shaped base.
[0014] As a further description of the above technical solution:
[0015] The clamping mechanism also includes anti-slip pads, and multiple anti-slip pads are respectively fixedly connected to the outer side of the corresponding L-shaped plate.
[0016] As a further description of the above technical solution:
[0017] A water storage box is fixedly connected to the bottom left side of the C-shaped seat, and a sealing plug is connected to the bottom left front side of the water storage box.
[0018] As a further description of the above technical solution:
[0019] The bottom front and rear sides of the C-shaped base are fixedly connected to support arms. The inner side of the support arm is threaded with multiple screws, which are fixedly connected to the C-shaped base and the water storage box through the support arm.
[0020] As a further description of the above technical solution:
[0021] A controller is fixedly connected to the top front side of the C-shaped base. The controller is electrically connected to Fan 1, Fan 2, First Motor, Second Motor, Third Motor, and Electric Telescopic Rod.
[0022] This utility model has the following beneficial effects:
[0023] In this invention, a controller controls a first motor, whose output can drive a transmission rod to rotate. When the transmission rod rotates, it drives a first pulley to rotate. Since the first pulley is connected to a second pulley via a transmission belt, the rotation of the second pulley drives a gear to rotate. Since the gear meshes with a rack, the rotation of the gear drives a second hollow plate connected to the rack to move up and down. When the second hollow plate moves, it drives a first fan to move up and down, thereby achieving faster drying of the power box.
[0024] In this invention, an electric telescopic rod is controlled by a controller, which drives the hollow cover to move up and down. Since the hollow cover is connected to the hollow disc, the hollow cover moves up and down, which in turn drives the hollow disc to move. The controller controls the second motor inside the hollow cover, and the output of the second motor drives the rotating disc to rotate. Under the limiting action of the limiting groove and the hollow plate, the sliding column drives the L-shaped plate to move, thereby achieving clamping when performing a sealing test on the power box. Attached Figure Description
[0025] Figure 1 This is a perspective view of the power box airtightness testing device proposed in this utility model;
[0026] Figure 2 This is a front view of the power box airtightness testing device proposed in this utility model;
[0027] Figure 3 This is a partial structural cross-sectional view of the power box airtightness testing device proposed in this utility model;
[0028] Figure 4 This is a partial structural cross-sectional view of the drying mechanism of the power box airtightness testing device proposed in this utility model;
[0029] Figure 5 This is a partial structural exploded view of the clamping mechanism of the power box airtightness testing device proposed in this utility model;
[0030] Figure 6 This is a partial structural cross-sectional view of the clamping mechanism of the power box airtightness testing device proposed in this utility model.
[0031] Legend:
[0032] 1. C-shaped base; 2. Drying mechanism; 21. Transmission rod; 22. First motor; 23. Hollow plate one; 24. Gear; 25. Rack; 26. Hollow plate two; 27. Fan one; 28. Pulley one; 29. Transmission belt; 210. Pulley two; 3. Clamping mechanism; 31. Electric telescopic rod; 32. Hollow cover; 33. Anti-slip mat; 34. Hollow disc; 35. Second motor; 36. Rotating disc; 37. Limiting groove; 38. Sliding column; 39. L-shaped plate; 4. Cavity; 5. Lead screw; 6. I-beam block; 7. Third motor; 8. Fan two; 9. Filter screen; 10. Controller; 11. Water storage box; 12. Sealing plug; 13. Support arm; 14. Screw. Detailed Implementation
[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0034] Reference Figure 1 , Figure 3 and Figure 4 An embodiment of this utility model provides a power box air tightness testing device, including a C-shaped seat 1, a drying mechanism 2 is provided on the inner side of the C-shaped seat 1, the drying mechanism 2 is used to dry the power box that has completed the air tightness test, and a clamping mechanism 3 is provided on the upper left side of the C-shaped seat 1, the clamping mechanism 3 is used to clamp the power box to be tested and insert it into water for testing.
[0035] The drying mechanism 2 includes a first motor 22, which is fixedly connected to the front interior of the C-shaped base 1. A transmission rod 21 is fixedly connected to the output end of the first motor 22. When the first motor 22 operates, it drives the transmission rod 21 connected to its output end to rotate. Hollow plates 23 are fixedly connected to both the front and rear interior sides of the C-shaped base 1. Gears 24 are rotatably connected to the middle of the inner sides of both hollow plates 23, allowing them to rotate inside the hollow plates 23. A second hollow plate 26 is slidably connected to the outer side of the first hollow plate 23. A rack 25 is fixedly connected to the inside right side of the two hollow plates 26. The rack 25 meshes with the gear 24. When the gear 24 rotates, it will drive the rack 25 to move. A pulley 28 is fixedly connected to the front and rear sides of the transmission rod 21. A pulley 210 is fixedly connected to the outside of the gear 24. The pulley 210 is connected to the pulley 28 via a transmission belt 29. When the pulley 28 rotates, it will drive the pulley 210 to rotate together via the transmission belt 29. Multiple fans 27 are fixedly connected to the adjacent sides of the two hollow plates 26.
[0036] Specifically, the controller 10 controls the operation of the first motor 22. Since the output end of the first motor 22 is connected to the transmission rod 21, the operation of the first motor 22 will drive the transmission rod 21 to rotate. Since the transmission rod 21 is connected to the pulley 28, the rotation of the transmission rod 21 will drive the pulley 28 to rotate. Since the pulley 28 and the second pulley 210 are connected by the transmission belt 29, the rotation of the pulley 28 will drive the second pulley 210 to rotate through the transmission belt 29. Since the second pulley 210 is connected to the gear 24, the rotation of the pulley 210 will drive the gear 24 to rotate. Since the gear 24 meshes with the rack 25 and is connected to the hollow plate 23, the rotation of the gear 24 in the hollow plate 23 will drive the hollow plate 26 connected to the rack 25 to move. The movement of the hollow plate 26 will drive the fan 27 to move, thereby achieving faster drying of the power box.
[0037] Reference Figure 1 , Figure 2 and Figure 5An embodiment of this utility model is provided: the clamping mechanism 3 includes an electric telescopic rod 31, which is fixedly connected to the inside left side of the C-shaped seat 1. A hollow cover 32 is fixedly connected to the bottom end of the electric telescopic rod 31. When the electric telescopic rod 31 extends or retracts, it will drive the hollow cover 32 to move up and down together. A second motor 35 is fixedly connected to the middle of the bottom end of the hollow cover 32. A hollow disk 34 is fixedly connected to the outer bottom of the hollow cover 32. A rotating disk 36 is rotatably connected inside the hollow disk 34. The rotating disk 36 can rotate inside the hollow disk 34. The output end of the second motor 35 passes through the hollow disk 34 and is fixedly connected to the rotating disk 36. Multiple limiting grooves 37 are opened inside the rotating disk 36. Sliding columns 38 are slidably connected inside the limiting grooves 37. An L-shaped plate 39 is fixedly connected to the bottom end of each of the multiple sliding columns 38.
[0038] Specifically, the controller 10 controls the operation of the electric telescopic rod 31. Since the hollow cover 32 is connected to the hollow disk 34, the movement of the hollow cover 32 will drive the hollow disk 34 to move. The movement of the hollow disk 34 will drive the rotating disk 36 inside it to move. The controller 10 controls the second motor 35 to work. The output end of the second motor 35 is connected to the rotating disk 36. When the rotating disk 36 rotates, the sliding column 38 in the limiting groove 37 will move. Under the limiting action of the limiting groove 37 and the hollow disk 34, the sliding column 38 will drive the L-shaped plate 39 connected to it to move, thereby realizing the clamping when performing a sealing test on the power box.
[0039] Reference Figure 3 , Figure 5 and Figure 6 In one embodiment of this utility model: a cavity 4 is provided on the upper side of the interior of the C-shaped seat 1. A third motor 7 is fixedly connected to the outer wall of the top left side of the C-shaped seat 1. The output end of the third motor 7 passes through the cavity 4 and is fixedly connected to a lead screw 5. The third motor 7 can provide power for the rotation of the lead screw 5. An I-beam 6 is threadedly connected to the outer side of the lead screw 5. The bottom of the I-beam 6 is fixedly connected to an electric telescopic rod 31. A filter screen 9 is fixedly connected to the upper side of the bottom of the C-shaped seat 1. Multiple fans 8 are fixedly connected to the upper and lower sides of the interior of the C-shaped seat 1. The clamping mechanism 3 also includes anti-slip pads 33. Multiple anti-slip pads 33 are respectively fixedly connected to the outer side of the corresponding L-shaped plate 39. The anti-slip pads 33 can help the clamping mechanism 3 to clamp the power box more stably.
[0040] Specifically, the controller 10 controls the operation of the third motor 7, which drives the lead screw 5 connected to its output end to rotate in the cavity 4. Since the lead screw 5 is threadedly connected to the I-beam block 6, the rotation of the lead screw 5 will drive the I-beam block 6 to move. Since the I-beam block 6 is connected to the electric telescopic rod 31, the movement of the I-beam block 6 will drive the electric telescopic rod 31 to move, thereby achieving the effect of moving the clamping mechanism 3. The filter screen 9 is connected to the C-shaped seat 1, which prevents the power box from falling when the clamping mechanism 3 clamps the power box and moves it to the position of the drying mechanism 2. Multiple fans 8 are connected to the C-shaped seat 1 to achieve the drying effect on the upper and lower sides of the power box.
[0041] Reference Figure 1 , Figure 2 and Figure 3 In one embodiment of this utility model: a water storage box 11 is fixedly connected to the bottom left side of the C-shaped base 1. The water storage box 11 can hold water. A sealing plug 12 is connected to the bottom left front side of the water storage box 11. Support arms 13 are fixedly connected to the bottom front and rear sides of the C-shaped base 1. Multiple screws 14 are threadedly connected to the inner side of the support arms 13. The screws 14 are fixedly connected to the C-shaped base 1 and the water storage box 11 through the support arms 13. The screws 14 can help the support arms 13 support the C-shaped base 1 and the water storage box 11. A controller 10 is fixedly connected to the top front side of the C-shaped base 1. The controller 10 is electrically connected to the fan 1 27, the fan 2 8, the first motor 22, the second motor 35, the third motor 7 and the electric telescopic rod 31 respectively.
[0042] Specifically, water is stored in the water tank 11. The controller 10 controls the electric telescopic rod 31 to drive the clamping mechanism 3 to move the power box into the water tank 11 and immerse it in the water. If there is a problem with the airtightness of the power box, bubbles will appear on the water surface, thus detecting the airtightness of the power box. After the test is completed, the water in the water tank 11 will flow out through the hole in the sealing plug 12 by pulling out the sealing plug 12. The controller 10 controls the electric telescopic rod 31 to drive the clamping assembly to take the power box out of the water tank 11. In this device, the C-shaped seat 1 needs to be supported to connect with the water tank 11, which is achieved through the support arm 1. 3. The support arm 13 is connected to the bottom of the C-shaped seat 1 and the right side of the water storage box 11 by screws 14. The controller 10 can control the operation of fan 1 27, fan 2 8, first motor 22, second motor 35, third motor 7 and electric telescopic rod 31. The model of fan 1 27 is DC14025, the model of fan 2 8 is EC12038-1, the models of first motor 22 and third motor 7 are both T-1600-4, the model of second motor 35 is 60KTYZ, and the model of electric telescopic rod 31 is MPPMCK electric hydraulic push rod.
[0043] Working principle: When the power box inspection is completed, the controller 10 controls the operation of the first motor 22. Since the output end of the first motor 22 is connected to the transmission rod 21, the operation of the first motor 22 will drive the transmission rod 21 to rotate. Since the transmission rod 21 is connected to pulley 28, the rotation of the transmission rod 21 will drive the pulley 28 to rotate. Since pulley 28 and pulley 210 are connected by a transmission belt 29, the rotation of pulley 28 will drive pulley 210 to rotate through the transmission belt 29. 0 is connected to gear 24. When pulley 210 rotates, it will drive gear 24 to rotate. Since gear 24 meshes with rack 25 and is connected to hollow plate 23, when gear 24 rotates in hollow plate 23, it will drive hollow plate 26 connected to rack 25 to move. When hollow plate 26 moves, it will drive fan 27 to move, thereby achieving faster drying of the power box. The controller 10 controls multiple fans 27 and multiple fans 8 to work, thereby achieving the drying of the power box.
[0044] Furthermore, the electric telescopic rod 31 is controlled by the controller 10. Since the hollow cover 32 is connected to the hollow disk 34, the hollow cover 32 moves and drives the hollow disk 34 to move. The hollow disk 34 moves and drives the rotating disk 36 inside it to move. The second motor 35 is controlled by the controller 10. The output end of the second motor 35 is connected to the rotating disk 36. When the rotating disk 36 rotates, the sliding column 38 in the limiting groove 37 moves. Under the limiting action of the limiting groove 37 and the hollow disk 34, the sliding column 38 drives the L-shaped plate 39 connected to it to move, thereby realizing the clamping when performing a sealing test on the power box, and can better complete the airtightness test.
[0045] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., 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 power box airtightness testing device, including a C-type base (1), characterized in that: A drying mechanism (2) is provided on the inner side of the C-shaped seat (1). The drying mechanism (2) is used to dry the power box that has completed the airtightness test. A clamping mechanism (3) is provided on the upper left side of the C-shaped seat (1). The clamping mechanism (3) is used to clamp the power box to be tested and insert it into the water for testing. The drying mechanism (2) includes a first motor (22), which is fixedly connected to the front side inside the C-shaped seat (1). The output end of the first motor (22) is fixedly connected to a transmission rod (21). Hollow plates (23) are fixedly connected to the front and rear sides inside the C-shaped seat (1). Gears (24) are rotatably connected to the middle of the inner side of the two hollow plates (23). Hollow plates (26) are slidably connected to the outer side of the hollow plates (23). A rack (25) is fixedly connected to the right side inside the hollow plates (26). The rack (25) meshes with the gear (24). A pulley (28) is fixedly connected to the front and rear sides outside the transmission rod (21). A pulley (210) is fixedly connected to the outer side of the gear (24). The pulley (210) is connected to the pulley (28) via a transmission belt (29). Multiple fans (27) are fixedly connected to the adjacent side of the two hollow plates (26).
2. The power box airtightness testing device according to claim 1, characterized in that: The clamping mechanism (3) includes an electric telescopic rod (31), which is fixedly connected to the inside left side of the C-shaped seat (1). A hollow cover (32) is fixedly connected to the bottom end of the electric telescopic rod (31). A second motor (35) is fixedly connected to the middle of the bottom end of the hollow cover (32). A hollow disk (34) is fixedly connected to the bottom outer side of the hollow cover (32). A rotating disk (36) is rotatably connected inside the hollow disk (34). The output end of the second motor (35) passes through the hollow disk (34) and is fixedly connected to the rotating disk (36). Multiple limiting grooves (37) are opened inside the rotating disk (36). Sliding columns (38) are slidably connected inside the limiting grooves (37). An L-shaped plate (39) is fixedly connected to the bottom end of each of the multiple sliding columns (38).
3. The power box airtightness testing device according to claim 1, characterized in that: The upper side of the C-shaped seat (1) is provided with a cavity (4). A third motor (7) is fixedly connected to the outer wall of the top left side of the C-shaped seat (1). The output end of the third motor (7) passes through the cavity (4) and is fixedly connected to a lead screw (5). An I-shaped block (6) is threadedly connected to the outer side of the lead screw (5). The bottom of the I-shaped block (6) is fixedly connected to the electric telescopic rod (31).
4. The power box airtightness testing device according to claim 1, characterized in that: A filter screen (9) is fixedly connected to the bottom upper side of the C-shaped base (1), and multiple fans (8) are fixedly connected to the upper and lower sides of the interior of the C-shaped base (1).
5. The power box airtightness testing device according to claim 1, characterized in that: The clamping mechanism (3) also includes anti-slip pads (33), and multiple anti-slip pads (33) are respectively fixedly connected to the outside of the corresponding L-shaped plate (39).
6. The power box airtightness testing device according to claim 1, characterized in that: A water storage box (11) is fixedly connected to the bottom left side of the C-shaped seat (1), and a sealing plug (12) is connected to the bottom left front side of the water storage box (11).
7. The power box airtightness testing device according to claim 1, characterized in that: The bottom front and rear sides of the C-shaped seat (1) are fixedly connected with support arms (13). The inner side of the support arm (13) is threaded with multiple screws (14). The screws (14) are fixedly connected to the C-shaped seat (1) and the water storage box (11) through the support arm (13).
8. The power box airtightness testing device according to claim 1, characterized in that: A controller (10) is fixedly connected to the top front side of the C-shaped seat (1). The controller (10) is electrically connected to the fan (27), fan (8), first motor (22), second motor (35), third motor (7) and electric telescopic rod (31).