A device for improving moisture resistance of a capacitor and a process thereof

Abstract

The application relates to a device for improving the moisture-proof performance of a capacitor and a process thereof, which comprises a workbench, a feeding plate and a capacitor body, the upper surface of the workbench is provided with a vertical plate, the outer side of the vertical plate is provided with a conveying line for conveying the feeding plate, three pressing wheels are arranged above the conveying line on the outer side of the vertical plate, three hinged rods are rotatably arranged on the outer side of the vertical plate through torsional springs, the end portions of the hinged rods are rotatably connected with the pressing wheels, an oil tank is arranged on the upper surface of the workbench, a centrifugal pump is arranged in the oil tank, an oil pipe is connected with the output end of the centrifugal pump, a nozzle is arranged at the end portion of the oil pipe, a collecting mechanism for collecting the feeding plate is arranged on the upper surface of the workbench at the conveying end portion of the conveying line, and a drying mechanism for drying the feeding plate is arranged on the lower side of the collecting mechanism. The application can avoid the adhesion of silicon oil on the capacitor core, make the capacitor core quickly solidify, and facilitate the fixation and removal of the capacitor on the feeding plate.

Description

Technical Field

[0001] This invention relates to the field of capacitor processing technology, specifically to a device and process for improving the moisture resistance of capacitors. Background Technology

[0002] A capacitor is an electronic component used to store electric charge and transfer charge and energy in a circuit. It consists of two conductors separated by an insulating material (called a dielectric) forming two electrodes. When a capacitor is connected to a power source, charge accumulates between the two electrodes. The capacitance is determined by the geometry of the capacitor and the properties of the dielectric.

[0003] Capacitors require moisture-proof treatment during production to help protect the internal dielectric, avoid the negative impact of humid environments on the capacitor, and improve its reliability and performance. Moisture-proof treatment is especially important when capacitors are used in humid, high-humidity, or harsh environments.

[0004] When performing moisture-proof treatment on capacitors, silicone oil needs to be applied to the capacitor leads first to isolate them from the epoxy coating. Then, the capacitor core is impregnated to achieve a moisture-proof effect. However, in actual production, silicone oil has a certain fluidity before solidification, which can easily stick to the capacitor core, causing poor appearance and affecting the coating of the impregnating material, thereby reducing the moisture-proof performance of the capacitor. Furthermore, when fixing the capacitor to the feeding plate, tape is usually used to stick part of the capacitor leads to the feeding plate for fixation. However, when the tape is subsequently peeled off and the capacitor is removed, the leads are easily bent, affecting the quality of the product. Summary of the Invention

[0005] The purpose of this invention is to provide a device and process for improving the moisture resistance of capacitors by preventing silicone oil from sticking to the capacitor core and facilitating the fixing and removal of capacitors from the feeding plate.

[0006] To achieve the above objectives, the technical solution of the present invention is as follows.

[0007] An apparatus and process for improving the moisture resistance of capacitors, comprising a worktable, a feeding plate, and a capacitor body.

[0008] The upper surface of the workbench is mounted with an upright plate. A conveyor line for conveying the feeding plate is set on the outer side of the upright plate. Three pressure rollers are set on the outer side of the upright plate above the conveyor line. Three hinge rods are rotatably mounted on the outer side of the upright plate through torsion springs, and the ends of the hinge rods are rotatably connected to the pressure rollers.

[0009] An oil tank is installed on the upper surface of the workbench. A centrifugal pump is installed inside the oil tank. An oil pipe is connected to the output end of the centrifugal pump, and a nozzle is installed at the end of the oil pipe.

[0010] The upper surface of the workbench is equipped with a collection mechanism for collecting the feed plates at the conveying end of the conveyor line.

[0011] A drying mechanism for drying the feeding plate is provided on the lower side of the collecting mechanism.

[0012] An impregnation chamber is installed on the upper surface of the workbench. A vacuum machine is installed on the outside of the impregnation chamber, and an impregnation mechanism for impregnating the capacitor core is installed inside the impregnation chamber.

[0013] Multiple sets of grooves are evenly provided on one side of the feeding plate. Part of the capacitor body lead is set in the groove. A pressure plate is provided on the outside of the feeding plate. The capacitor body is located between the feeding plate and the pressure plate. A clamping mechanism that applies tension to the pressure plate is provided inside the feeding plate.

[0014] Therefore, the clamping mechanism can fix the capacitor body, and then the feeding plate containing the capacitor body is conveyed by the conveyor line, ensuring that the capacitor body is in a horizontal state. When the feeding plate carrying the capacitor body passes under the nozzle, silicone oil can be automatically applied to the lead wire. Since the capacitor body is in a horizontal state at this time, the silicone oil will not flow towards the core. When the feeding plate comes out of the conveyor end, it can automatically fall onto the collection mechanism for collection. The drying mechanism dries the capacitor body, which can quickly solidify the silicone oil, thus preventing the silicone oil from flowing onto the core. Then, the worker can pick up the feeding plate with the dried capacitor body and place it in the impregnation box for impregnation treatment. After the capacitor body has completed the moisture-proof treatment, the worker can cut the lead wire along the edge of the feeding plate and separate the pressure plate from the lead wire by the clamping mechanism. At this time, the cut lead wire will fall automatically, which can be collected and reused, thus achieving the purpose of facilitating the fixing and removal of the lead wire from the feeding plate.

[0015] Furthermore, the collection mechanism includes four mounting blocks installed on the upper surface of the workbench, with each of the four mounting blocks corresponding to the other two. A rotating shaft is rotatably connected between two opposing mounting blocks. Pulleys are fitted onto the outer surfaces of the rotating shafts near both ends. A conveyor belt is provided on the outer surfaces of two pulleys arranged along the width of the workbench. A motor is mounted on the outer surface of one of the mounting blocks, and the output shaft of the motor is connected to the rotating shaft. A clamping plate is connected between two mounting blocks that are close to the vertical plate and opposite to each other, and a baffle is connected between two mounting blocks that are far from the vertical plate and opposite to each other.

[0016] The force applied to the pressure roller by the torsion spring allows the pressure roller to press firmly against the upper side of the feeding plate. This ensures that the feeding plate remains horizontal before it separates from the pressure roller and the conveyor line, and it can be conveyed to the upper side of the pallet. After the feeding plate separates, it falls directly onto the pallet. Since only a part of the feeding plate falls onto the pallet and the majority of it remains suspended, it flips and falls onto the conveyor belt under the influence of gravity. At this point, the capacitor body is vertically downward, and the feeding plate is conveyed forward along the conveyor belt until it is blocked by the baffle, thus achieving the collection of the feeding plate.

[0017] Furthermore, the drying mechanism includes an air collection box installed at the bottom of the workbench, a hot air blower installed on the outer surface of the air collection box, and through holes evenly distributed on the upper surface of the workbench below the collecting mechanism, and the through holes are connected to the air collection box.

[0018] When the hot air blower is running, it continuously blows hot air into the air collection box. The hot air flows upward through the through holes and dries the capacitor leads on the conveyor belt, which can quickly solidify the silicone oil and thus prevent the silicone oil from flowing onto the core.

[0019] Furthermore, the impregnation mechanism includes a fixed circular block installed inside the impregnation tank, an electric push rod installed at the bottom of the worktable, the end of the electric push rod extending through the interior of the fixed circular block and extending to its outer side, a top plate installed at the end of the electric push rod extension, and side rods installed on both sides of the end of the top plate along its length.

[0020] First, pour an appropriate amount of impregnation material into the impregnation tank, ensuring that its height does not exceed the fixed circular block. This prevents the impregnation material from leaking from the gaps around the extension end of the electric push rod. Then, place the feeding plate on the top plate, so that the capacitor body is vertically downward. Close the cover and evacuate the vacuum using a vacuum machine. Then, start the electric push rod, and its extension end will drive the top plate down, gradually placing the capacitor core into the impregnation material, thereby completing the impregnation process and improving its moisture-proof performance. In addition, since traditional impregnation materials are transparent, this application can add an appropriate amount of red colorant to the impregnation material, thereby effectively determining whether the capacitor core has been impregnated and wrapped.

[0021] Furthermore, the clamping mechanism includes a circular hole on the surface of the feeding plate facing the pressure plate, a guide rod connected to the outer surface of the pressure plate, the guide rod extending through the circular hole into the feeding plate, a spring connected to the inner wall of the feeding plate, and the end of the spring connected to the guide rod.

[0022] When it is necessary to install the capacitor body onto the feeding plate, first pull the pressure plate outward, then place the capacitor body's lead wire into the groove, and finally release the pressure plate. Under the action of the spring force, the pressure plate can automatically press against the lead wire to fix the capacitor body.

[0023] Furthermore, two support blocks are installed on the upper surface of the workbench, and positioning grooves are opened on the outer surface of the support blocks, with the conveyor belt set in the positioning grooves.

[0024] When the conveyor belt is running, it slides in the positioning groove, which serves to support the conveyor belt and allows multiple feeding plates to be placed on the conveyor belt to achieve the purpose of material collection.

[0025] Furthermore, a guide vane is installed on the outer surface of the nozzle.

[0026] The silicone oil sprayed from the nozzle falls onto the guide plate, slides down from the guide plate, and coats the leads with silicone, effectively preventing silicone oil from splashing and sticking to the capacitor core.

[0027] Furthermore, the outer surface of the immersion tank lid is provided with an observation window, which is made of tempered glass.

[0028] The observation window allows for external viewing of the interior of the impregnation chamber, helping to determine whether the capacitor core is fully submerged in the impregnation material and improving product qualification rate. Attached Figure Description

[0029] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0030] Figure 2 This is a partial structural diagram of the present invention.

[0031] Figure 3 This is a schematic diagram of the regional structure of the neutral plate in this invention.

[0032] Figure 4 This is a schematic diagram of the collection mechanism and drying mechanism in this invention.

[0033] Figure 5 This is a schematic diagram of the feeding plate and pressure plate in this invention.

[0034] Figure 6 This is a schematic diagram of the groove structure in this invention.

[0035] Figure 7 This is a schematic diagram of the clamping mechanism in this invention.

[0036] Figure 8 This is a schematic diagram of the impregnation mechanism in this invention.

[0037] Figure 9 for Figure 3 An enlarged diagram of A in the diagram.

[0038] Figure 10 for Figure 4 Enlarged diagram of B in the diagram.

[0039] In the diagram: 100. Workbench; 101. Vertical plate; 102. Conveyor line; 103. Pressure roller; 104. Hinge rod; 105. Oil tank; 106. Oil pipe; 107. Nozzle; 108. Feeding plate; 109. Groove; 110. Capacitor body; 111. Pressure plate; 112. Impregnation tank; 113. Vacuum machine; 200. Collection mechanism; 201. Mounting block; 202. Pulley; 203. Conveyor belt; 204. Rotating shaft ; 205, Motor; 206, Pallet; 207, Baffle; 300, Drying Mechanism; 301, Air Collection Box; 302, Hot Air Blower; 303, Through Hole; 400, Impregnation Mechanism; 401, Fixed Round Block; 402, Top Plate; 403, Side Rod; 500, Clamping Mechanism; 501, Round Hole; 502, Guide Rod; 503, Spring; 600, Support Block; 601, Positioning Groove; 700, Guide Plate; 800, Observation Window. Detailed Implementation

[0040] The present invention will now be described in detail with reference to the accompanying drawings.

[0041] like Figure 1-4 As shown, an apparatus and process for improving the moisture resistance of capacitors include a workbench 100, a feeding plate 108, and a capacitor body 110. A vertical plate 101 is mounted on the upper surface of the workbench 100. A conveyor line 102 for conveying the feeding plate 108 is provided on the outer side of the vertical plate 101. Three pressure rollers 103 are respectively arranged on the outer side of the vertical plate 101 above the conveyor line 102. Three hinge rods 104 are rotatably mounted on the outer side of the vertical plate 101 via torsion springs, and the ends of the hinge rods 104 are rotatably connected to the pressure rollers 103. An oil tank 105 is mounted on the upper surface of the workbench 100. A centrifugal pump is installed inside the oil tank 105. The output end of the centrifugal pump is connected to an oil pipe 106, and a nozzle 107 is installed at the end of the oil pipe 106. The upper surface of the workbench 100 is located above the conveyor line 102. A collection mechanism 200 for collecting the feeding plate 108 is provided at the conveying end of 2; a drying mechanism 300 for drying the feeding plate 108 is provided on the lower side of the collection mechanism 200; an impregnation tank 112 is installed on the upper surface of the workbench 100, a vacuum machine 113 is provided on the outside of the impregnation tank 112, and an impregnation mechanism 400 for impregnating the core of the capacitor body 110 is provided inside the impregnation tank 112; multiple sets of grooves 109 are evenly opened on one side of the feeding plate 108, and a portion of the lead wire of the capacitor body 110 is located in the groove 109; a pressure plate 111 is provided on the outside of the feeding plate 108, and the capacitor body 110 is located between the feeding plate 108 and the pressure plate 111; a clamping mechanism 500 for applying tension to the pressure plate 111 is provided inside the feeding plate 108.

[0042] First, the leads of the capacitor body 110 are placed in the groove 109, and the clamping mechanism 500 drives the pressure plate 111 to press the leads, thus fixing the capacitor body 110. Then, the feeding plate 108 containing the capacitor body 110 is conveyed through the conveyor line 102, ensuring that the capacitor body 110 is in a horizontal state. When the feeding plate 108 carrying the capacitor body 110 passes under the nozzle 107, silicone oil is automatically applied to the leads. Since the capacitor body 110 is in a horizontal state at this time, the silicone oil will not flow towards the core. When the feeding plate 108 comes out from the conveying end of the conveyor line 102, it automatically falls onto the collection mechanism 200, and the capacitor body 110 is vertically downward. At this time, the drying mechanism 300 dries the capacitor. Drying the capacitor body 110 allows the silicone oil to solidify quickly, preventing it from flowing onto the core. Furthermore, the capacitor body 110 is positioned vertically downwards to prevent collisions between capacitor bodies 110 on multiple feed plates 108, facilitating collection. Workers can then pick up the dried feed plate 108 containing the capacitor body 110 and place it in the impregnation tank 112 for impregnation. After the capacitor body 110 has completed its moisture-proof treatment, workers can cut the leads along the edge of the feed plate 108, removing the uncoated portion. The clamping mechanism 500 separates the pressure plate 111 from the leads, causing the cut leads to fall automatically and be collected for reuse. This process facilitates the fixing and removal of leads from the feed plate 108.

[0043] Specifically, the collection mechanism 200 includes four mounting blocks 201 installed on the upper surface of the workbench 100, with each pair of mounting blocks 201 corresponding to the other. A rotating shaft 204 is rotatably connected between two opposing mounting blocks 201. Pulleys 202 are fitted onto the outer surfaces of the rotating shaft 204 near both ends. A conveyor belt 203 is shared on the outer surfaces of the two pulleys 202 arranged along the width of the workbench 100. A motor 205 is mounted on the outer surface of one of the mounting blocks 201, and the output shaft of the motor 205 is connected to the rotating shaft 204. A clamping plate 206 connects two mounting blocks 201 that are close to and opposite the vertical plate 101, and a baffle 20 connects two mounting blocks 201 that are far from and opposite the vertical plate 101. 7. The force applied to the pressure roller 103 by the torsion spring allows the pressure roller 103 to press firmly against the upper side of the feeding plate 108, thereby ensuring that the feeding plate 108 remains horizontal before it separates from the pressure roller 103 and the conveyor line 102, and can be conveyed to the upper side of the clamping plate 206. After the feeding plate 108 separates, it falls directly downward onto the clamping plate 206. Since only a part of the feeding plate 108 falls onto the clamping plate 206, and most of the rest is in a suspended position, the feeding plate 108 flips and falls onto the conveyor belt 203 under the action of gravity. At this time, the capacitor body 110 is vertically downward, and the feeding plate 108 is conveyed forward along the conveyor belt 203 until it is blocked by the baffle 207, thereby realizing the collection of the feeding plate 108.

[0044] Specifically, the drying mechanism 300 includes an air collection box 301 installed at the bottom of the workbench 100. A hot air blower 302 is installed on the outer surface of the air collection box 301. The upper surface of the workbench 100 is provided with through holes 303 evenly distributed below the collecting mechanism 200. The through holes 303 are connected to the air collection box 301. When the hot air blower 302 is running, it continuously blows hot air into the air collection box 301. The hot air flows upward through the through holes 303 and dries the capacitor leads on the conveyor belt 203, which can quickly solidify the silicone oil and thus prevent the silicone oil from flowing onto the core.

[0045] Specifically, the impregnation mechanism 400 includes a fixed circular block 401 installed inside the impregnation tank 112. An electric push rod is installed at the bottom of the worktable 100. The telescopic end of the electric push rod passes through the interior of the fixed circular block 401 and extends to its outer side. A top plate 402 is installed at the telescopic end of the electric push rod. Side rods 403 are installed on both sides of the length end of the top plate 402. First, an appropriate amount of impregnation material is poured into the impregnation tank 112, ensuring that its height does not exceed the fixed circular block 401, which can prevent the impregnation material from flowing out of the electric push rod. Leakage occurs in the gaps around the telescopic end. Then, the feeding plate 108 is placed on the top plate 402, so that the capacitor body 110 is vertically downward. The cover is closed, and a vacuum is drawn by the vacuum machine 113. Then, the electric push rod is started, and its telescopic end drives the top plate 402 to descend, gradually placing the capacitor core into the impregnation material, thereby completing the impregnation process and improving its moisture-proof performance. In addition, the traditional impregnation material is transparent, but this application can add an appropriate amount of red colorant to the impregnation material, so as to effectively determine whether the capacitor core is impregnated and wrapped.

[0046] Specifically, the clamping mechanism 500 includes a circular hole 501 on the surface of the feeding plate 108 facing the pressure plate 111. A guide rod 502 is connected to the outer surface of the pressure plate 111, and the guide rod 502 extends through the circular hole 501 into the feeding plate 108. A spring 503 is connected to the inner wall of the feeding plate 108, and the end of the spring 503 is connected to the guide rod 502. When it is necessary to install the capacitor body 110 on the feeding plate 108, the pressure plate 111 is first pulled outward, then the lead wire of the capacitor body 110 is placed into the groove 109, and finally the pressure plate 111 is released. Under the action of the elastic force of the spring 503, the pressure plate 111 can be automatically pressed against the lead wire to fix the capacitor body 110.

[0047] Specifically, two support blocks 600 are installed on the upper surface of the workbench 100. The outer surface of the support block 600 is provided with a positioning groove 601. The conveyor belt 203 is set in the positioning groove 601. When the conveyor belt 203 is running, it slides in the positioning groove 601, which serves to support the conveyor belt 203 and allows multiple feeding plates 108 to be placed on the conveyor belt 203 to achieve the purpose of material collection.

[0048] Specifically, a guide plate 700 is installed on the outer surface of the nozzle 107. The silicone oil sprayed from the nozzle 107 falls onto the guide plate 700, slides down from the guide plate 700 and coats the lead wire with silicone, which can effectively prevent silicone oil from splashing and sticking to the capacitor core.

[0049] Specifically, the outer surface of the lid of the impregnation chamber 112 is provided with an observation window 800, which is made of tempered glass. Through the observation window 800, the internal condition of the impregnation chamber 112 can be observed from the outside, which helps to determine whether the capacitor core is completely submerged in the impregnation material and improves the product qualification rate.

[0050] A moisture-proof process for capacitors specifically includes the following steps:

[0051] Step S1: Clamp the capacitor body 110 between the feeding plate 108 and the pressure plate 111, and place the lead wire of the capacitor body 110 in the groove 109.

[0052] Step S2: The feeding plate 108 containing the capacitor body 110 is conveyed through the conveyor line 102 so that the capacitor body 110 is in a horizontal state. When it passes through the nozzle 107, the leads can be coated with silicon.

[0053] Step S3: The feeding plate 108 falls onto the conveyor belt 203 for collection, and at this time the capacitor body 110 is in a vertical state, and the silicone oil is heated by the hot air blower 302.

[0054] Step S4: Remove the feeding plate 108 from the conveyor belt 203 and place it on the side rod 403. Cover the box and evacuate the inside of the impregnation tank 112. Then, the electric push rod drives the feeding plate 108 down and immerses the core in the impregnation material.

[0055] Step S5: Cut off and collect the excess leads on the capacitor body 110, recycle them, and obtain a capacitor body 110 with good waterproof effect.

[0056] The above is a detailed description of the present invention in conjunction with specific embodiments, and it should not be construed that the specific embodiments of the present invention are limited to these descriptions. For those skilled in the art, any equivalent substitutions or obvious modifications made without departing from the concept of the present invention, and which have the same performance or use, should be considered to fall within the patent protection scope defined by the submitted claims.

Claims

1. A device for improving the moisture-proof performance of capacitors, comprising a workbench (100), a feeding plate (108), and a capacitor body (110), characterized in that: The upper surface of the workbench (100) is equipped with a vertical plate (101). A conveyor line (102) for conveying the feeding plate (108) is provided on the outer side of the vertical plate (101). Three pressure rollers (103) are respectively provided on the outer side of the vertical plate (101) above the conveyor line (102). Three hinge rods (104) are rotatably installed on the outer side of the vertical plate (101) through torsion springs, and the ends of the hinge rods (104) are rotatably connected to the pressure rollers (103). An oil tank (105) is installed on the upper surface of the workbench (100). A centrifugal pump is installed inside the oil tank (105). An oil pipe (106) is connected to the output end of the centrifugal pump. A nozzle (107) is installed at the end of the oil pipe (106). The upper surface of the workbench (100) is provided with a collection mechanism (200) for collecting the feed plate (108) at the conveying end of the conveyor line (102). The lower side of the collecting mechanism (200) is provided with a drying mechanism (300) for drying the feeding plate (108). An impregnation chamber (112) is installed on the upper surface of the workbench (100). A vacuum machine (113) is provided on the outside of the impregnation chamber (112). An impregnation mechanism (400) for impregnating the core of the capacitor body (110) is provided inside the impregnation chamber (112). The feeding plate (108) has multiple sets of grooves (109) evenly distributed on one side. A portion of the lead wire of the capacitor body (110) is disposed in the groove (109). A pressure plate (111) is disposed on the outer side of the feeding plate (108). The capacitor body (110) is located between the feeding plate (108) and the pressure plate (111). A clamping mechanism (500) for applying tension to the pressure plate (111) is disposed inside the feeding plate (108).

2. The device for improving the moisture-proof performance of a capacitor according to claim 1, characterized in that: The collecting mechanism (200) includes four mounting blocks (201) mounted on the upper surface of the workbench (100), and the four mounting blocks (201) are paired. A rotating shaft (204) is rotatably connected between two opposite mounting blocks (201). A pulley (202) is sleeved on the outer surface of the rotating shaft (204) near both ends. A conveyor belt (203) is provided on the outer surface of the two pulleys (202) arranged along the width direction of the workbench (100). A motor (205) is mounted on the outer surface of one of the mounting blocks (201). The output shaft of the motor (205) is connected to the rotating shaft (204). A clamping plate (206) is connected between two mounting blocks (201) that are close to the upright plate (101) and arranged opposite to each other. A baffle (207) is connected between two mounting blocks (201) that are far away from the upright plate (101) and arranged opposite to each other.

3. The device for improving the moisture resistance of a capacitor according to claim 2, characterized in that: The drying mechanism (300) includes an air collection box (301) installed at the bottom of the workbench (100). A hot air blower (302) is installed on the outer surface of the air collection box (301). The upper surface of the workbench (100) is provided with through holes (303) evenly distributed below the collecting mechanism (200), and the through holes (303) are connected to the air collection box (301).

4. The device for improving the moisture resistance of a capacitor according to claim 3, characterized in that: The impregnation mechanism (400) includes a fixed circular block (401) installed inside the impregnation tank (112). An electric push rod is installed at the bottom of the worktable (100). The end of the electric push rod extends through the interior of the fixed circular block (401) and to its outside. A top plate (402) is installed at the end of the electric push rod. Side rods (403) are installed on both sides of the end of the top plate (402) in the length direction.

5. The device for improving the moisture-proof performance of a capacitor according to claim 4, characterized in that: The clamping mechanism (500) includes a circular hole (501) on the surface of the feeding plate (108) facing the pressure plate (111), a guide rod (502) is connected to the outer surface of the pressure plate (111), and the guide rod (502) extends through the circular hole (501) into the feeding plate (108). A spring (503) is connected to the inner wall of the feeding plate (108), and the end of the spring (503) is connected to the guide rod (502).

6. The device for improving the moisture resistance of a capacitor according to claim 5, characterized in that: Two support blocks (600) are installed on the upper surface of the workbench (100). The outer surface of the support block (600) is provided with a positioning groove (601), and the conveyor belt (203) is disposed in the positioning groove (601).

7. The device for improving the moisture-proof performance of a capacitor according to claim 6, characterized in that: A guide plate (700) is installed on the outer surface of the nozzle (107).

8. The device for improving the moisture resistance of a capacitor according to claim 7, characterized in that: The outer surface of the lid of the immersion tank (112) is provided with an observation window (800), which is made of tempered glass.

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