Oil immersion device for microwave oven high-voltage capacitor production and oil immersion process thereof

Abstract

The invention relates to the technical field of capacitor production, in particular to an oil immersion device for microwave oven high-voltage capacitor production, which comprises a rack, a vacuum tank and a filter are arranged at the upper part of the rack, a tank cover is arranged at the top of the vacuum tank, an accommodating disc for accommodating a capacitor is arranged in the vacuum tank in a sliding manner, and a spiral groove is formed in the inner wall of the vacuum tank; balls located in the spiral grooves are arranged on the outer wall of the containing disc, an annular frame located on the lower side of the containing disc is arranged in the vacuum tank, and push rods are connected to the top of the annular frame at intervals. The second driving mechanism can drive the lifting plate to drive the ring frame to ascend and descend, the ring frame ascends and descends to push the capacitor to ascend and descend through the push rod, and therefore dynamic oil immersion of the capacitor is achieved, sufficient oil immersion of the capacitor is guaranteed, and the oil immersion effect of the capacitor is improved. The containing disc is driven to rotate through the first driving mechanism, the containing disc rises from the interior of the vacuum tank when rotating through cooperation of the balls and the spiral grooves, redundant insulating oil on the outer surface of the capacitor is thrown away, the waiting time is shortened, and the oil immersion efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of capacitor production, and in particular to an oil immersion device and an oil immersion process for producing microwave oven high-voltage capacitors. Background Art

[0002] Microwave oven high-voltage capacitors are electronic components used to store and release electrical energy, and they play a vital role in microwave oven circuits. These capacitors usually operate at higher voltages, so their design and manufacture require special consideration of insulation performance and safety. In order to improve their electrical performance and reliability, it is necessary to immerse them in insulating oil. The purposes of oil immersion include: 1. Enhanced insulation performance: Insulating oil can fill the voids and gaps inside the capacitor, providing better insulation than air, thereby preventing electrical breakdown between internal components.

[0003] 2. Improve heat dissipation performance: Insulating oil can absorb and conduct the heat generated during the operation of the capacitor, helping to evenly distribute or transfer the heat to the external environment, effectively reducing the operating temperature of the capacitor, thereby improving its stability and life.

[0004] 3. Suppress partial discharge (free): Insulating oil has a high dielectric strength, which can significantly reduce the occurrence of such partial discharge.

[0005] 4. Moisture-proof and anti-corrosion: The oil layer can isolate moisture and other corrosive substances, ensuring that the capacitor can maintain good performance for a long time even in a humid or dusty environment.

[0006] After searching, a Chinese patent with patent announcement number CN222071582U is found, which is a capacitor impregnation device, including an impregnation cylinder, an inner cylinder is arranged in the impregnation cylinder, and a placement mechanism for placing solid capacitor elements is arranged on the inner cylinder; the placement mechanism includes a carrier plate and an upper placement plate, and the upper placement plate is provided with a plurality of through holes for limiting and fixing the capacitor elements, and the inner circumferential surface of each through hole is provided with three wedge blocks, and a group of guide blocks are arranged on both sides of the top surface of the upper placement plate opposite to each other, and a slide rail side platform with a corresponding phase-shifted sliding guide is arranged on the outer end of a group of guide blocks and on the inner cavity wall of the impregnation cylinder, an electric screw is arranged on the end center line of one side of the slide rail side platform, and a connecting mechanism is arranged at the lower end of a group of guide blocks on both sides and the end connected to the upper placement plate, and an end cover is arranged at the open top of the impregnation cylinder.

[0007] Although the above patent provides a method of plugging capacitor elements through the openings on the upper placement plate and the carrier plate to achieve oil immersion of the capacitor, in actual operation, the capacitor remains stationary during the oil immersion process, which may result in the area of ​​the capacitor in contact with the upper placement plate not being fully immersed in oil, affecting the oil immersion effect. At the same time, due to the lack of a structure to shake off excess insulating oil, when the capacitor is taken out of the insulating oil, it takes a long time to let the excess oil naturally drip back into the inner cylinder, thereby reducing the overall oil immersion efficiency. Summary of the invention

[0008] The purpose of the present invention is to provide an oil immersion device for producing microwave oven high-voltage capacitors, which can not only realize dynamic oil immersion of the capacitor to ensure that the capacitor is fully immersed in oil, but also remove excess insulating oil on the outer surface of the capacitor, reduce waiting time, and improve oil immersion efficiency.

[0009] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an oil immersion device for producing high-voltage capacitors in a microwave oven, comprising a frame, a vacuum tank and a filter are installed on the upper part of the frame, a tank cover is provided on the top of the vacuum tank, locking pieces for locking the tank cover are provided at intervals along the circumferential direction on the outside of the vacuum tank, a liquid injection pipe is connected to the lower part of the vacuum tank, a vacuum pump is installed on the upper part of the frame, an air extraction pipe is connected between the vacuum pump and the tank cover, an infusion pump is installed in the frame, the infusion pump is connected to the vacuum tank and the filter through a pipeline, and a sliding type is provided in the vacuum tank for placing capacitors A receiving tray, a flow port for oil circulation is provided at the bottom of the receiving tray, through holes are provided at intervals at the bottom of the receiving tray, the through holes are used to accommodate the plug-in interface of the capacitor, a spiral groove is provided on the inner wall of the vacuum tank, a ball is provided on the outer wall of the receiving tray and is located in the spiral groove, a driving mechanism 1 for driving the receiving tray to rotate is provided on the frame, a ring frame is provided at the lower side of the receiving tray in the vacuum tank, push rods are connected at intervals at the top of the ring frame, the push rods correspond to the through holes one by one, the push rods are located directly below the corresponding through holes, and a driving mechanism 2 for driving the ring frame to rise and fall is provided on the frame.

[0010] Preferably, the containing tray comprises a carrier tray slidably arranged in the vacuum tank, a placing tray is placed in the carrier tray, two L-shaped handles are connected to the side wall of the placing tray at intervals along the circumferential direction, two slots matching the L-shaped handles are spaced apart along the circumferential direction on the top of the carrier tray, flow openings are provided on the bottom of the carrier tray and the placing tray, through holes are spaced apart on the bottom of the carrier tray and the placing tray, and balls are provided on the outer wall of the carrier tray.

[0011] Preferably, the driving mechanism comprises a motor installed on the inner bottom surface of the frame, a spline sleeve is connected to the output shaft of the motor, the spline sleeve extends into the vacuum tank, a spline shaft is slidably connected to the spline sleeve, and the spline shaft is fixedly connected to the bottom of the carrier.

[0012] Preferably, the second driving mechanism comprises a second motor installed on the inner bottom surface of the frame, a disc is connected to the output shaft of the second motor, a sealing ring is embedded in the bottom of the vacuum tank, an inverted T-shaped lifting plate is slidably connected in the sealing ring, the top of the lifting plate is fixedly connected to the bottom of the ring frame, a straight groove is formed in the lower part of the inverted T-shaped lifting plate, a lever is connected to the eccentric position of the disc, and the lever is located in the straight groove.

[0013] Preferably, a protective mechanism for protecting the capacitor is provided on the placement plate, the protective mechanism includes a mesh protective cover placed on the placement plate, a mesh rubber cover is connected to the inner wall of the mesh protective cover, two wedge blocks are connected to the lower part of the outer wall of the mesh protective cover at intervals along the circumferential direction, and elastic clamping blocks for clamping the wedge blocks are provided on the sides of the two L-shaped handles close to each other.

[0014] Preferably, the filter includes a cylinder, a cylinder cover, a positioning tube, a filter cylinder, a cannula and a drainage tube. The cylinder is installed on the upper part of the frame, the infusion pump is connected to the cylinder through a pipeline, the liquid outlet end of the pipeline connected to the cylinder is connected to the positioning tube, the cannula is embedded at the bottom of the filter cylinder, the filter cylinder is sleeved on the outside of the positioning tube through the cannula, the top of the filter cylinder is open, the height of the cannula is lower than the positioning tube, the height of the filter cylinder is higher than the positioning tube, the height of the filter cylinder is lower than the cylinder, the cylinder cover is clamped on the top of the cylinder, and the bottom of the cylinder is connected to the drainage tube.

[0015] Preferably, a cleaning mechanism for cleaning the filter cartridge is provided in the cylinder, and the cleaning mechanism includes a rotating ring rotatably connected to the lower part of the cylinder, a cleaning brush is connected to the rotating ring through a connecting plate, the cleaning brush is in contact with the filter cartridge, a gear ring is connected to the rotating ring, and motor three is installed on the inner wall of the left machine base, the output shaft of motor three extends into the cylinder and is connected to a gear, and the gear is meshed with the gear ring.

[0016] An oil dipping process for producing microwave oven high-voltage capacitors, based on an oil dipping device for producing microwave oven high-voltage capacitors according to claim 7, is characterized in that it comprises the following steps: S1. Putting in the capacitor: remove the tank cover, then control the motor to drive the spline sleeve to rotate, the spline sleeve rotation drives the spline shaft rotation, the spline shaft rotation drives the receiving plate rotation, the receiving plate rotation drives the ball bearings rotation, the spiral groove guides the ball bearings to move upward, thereby raising the receiving plate, and then placing the capacitor on the receiving plate, then control the motor to drive the spline sleeve to reverse, so that the receiving plate drives the capacitor to move downward into the vacuum tank, and then put the tank cover back on the vacuum tank; S2, vacuuming: control the vacuum pump to work, extract the air in the vacuum tank through the exhaust pipe, so that the inside of the vacuum tank is maintained in a low vacuum state; S3. Oil filling: Inject the preheated insulating oil into the vacuum tank through the liquid filling pipe. Since the vacuum tank is in a vacuum state, the insulating oil will quickly penetrate into the tiny gaps of the capacitor under the action of the pressure difference; S4, pressure maintenance and penetration: After the oil filling is completed, the vacuum state is maintained for a period of time to allow the insulating oil to further penetrate into the fine structure of the capacitor under the vacuum environment. After that, the vacuum pump is controlled to work and gas is injected into the vacuum tank through the exhaust pipe to restore the vacuum tank to normal pressure, so that the insulating oil can stably fill the capacitor under normal pressure. S5, dynamic oil immersion: after the vacuum tank returns to normal pressure, the second motor is controlled to drive the disc to rotate. The rotation of the disc pushes the lifting plate up and down through the lever, so that the ring frame drives the push rod to move up and down, so as to push the capacitor up and down, and the capacitor is dynamically immersed in oil; S6. Extract the insulating oil: control the infusion pump to pump the used insulating oil in the vacuum tank to the filter for filtration; S7. Remove the capacitor: Control motor 1 to drive the spline sleeve to rotate, so that the containing plate rotates and rises, thereby driving the capacitor to rotate and rise. The rotation of the capacitor can shake off the excess insulating oil on its outer surface, and the capacitor rises and is removed from the vacuum tank.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. The lifting plate can be driven to lift the ring frame through the driving mechanism 2. The lifting of the ring frame pushes the capacitor to lift through the push rod, thereby realizing dynamic oil immersion of the capacitor, ensuring that the capacitor is fully immersed in oil, so as to improve the oil immersion effect of the capacitor.

[0018] 2. The receiving tray is driven to rotate by a driving mechanism. The cooperation of the ball and the spiral groove makes the receiving tray rise from the vacuum tank when it rotates, so as to facilitate the taking and placing of the capacitor. The rotation of the receiving tray drives the capacitor to rotate, thereby removing the excess insulating oil on the outer surface of the capacitor, reducing the waiting time and improving the oil immersion efficiency.

[0019] 3. The used insulating oil in the vacuum tank can be pumped into the filter through the infusion pump and pipeline. The impurities in the insulating oil can be filtered through the filter. The impurities are blocked in the filter, and the clean insulating oil is discharged from the filter, realizing the effective recovery and filtration of the insulating oil, ensuring the quality of the oil, and reducing waste and environmental pollution.

[0020] 4. The wedge block can be pressed and fixed by the elastic clamping block, so that the mesh protective cover can be locked on the placement plate. The mesh protective cover can cover and protect the capacitor to prevent the subsequent capacitor from being thrown out of the placement plate and colliding with the vacuum tank when the placement plate rotates. The mesh rubber cover can protect the capacitor to prevent the capacitor from colliding with the mesh protective cover and being damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0022] Figure 2It is a partial three-dimensional structural schematic diagram of the present invention.

[0023] Figure 3 It is a schematic diagram of the three-dimensional structure of the locking member of the present invention.

[0024] Figure 4 It is a schematic diagram of the installation of the driving mechanism 1 of the present invention.

[0025] Figure 5 It is a schematic diagram of the three-dimensional structure of the holding tray of the present invention.

[0026] Figure 6 It is an exploded view of the serving tray of the present invention.

[0027] Figure 7 It is a schematic diagram of the installation of the second driving mechanism of the present invention.

[0028] Figure 8 It is a schematic diagram of the three-dimensional structure of the driving mechanism 2 of the present invention.

[0029] Fig. 9 It is a three-dimensional structural schematic diagram of the protection mechanism of the present invention.

[0030] Fig.10 It is a three-dimensional structural schematic diagram of the wedge block and the elastic clamping block of the present invention.

[0031] Fig.11 It is a three-dimensional structural schematic diagram of the cleaning mechanism of the present invention.

[0032] Serial numbers in the figure: 1-frame, 01-machine, 02-machine base, 2-vacuum tank, 3-tank cover, 4-locking piece, 41-U-shaped block, 42-inverted T-shaped rod, 43-pressing block, 44-tension spring, 5-liquid injection pipe, 51-filter plug, 6-vacuum pump, 7-exhaust pipe, 8-filter, 81-cylinder, 82-cylinder cover, 83-positioning pipe, 84-filter cylinder, 85-insertion tube, 86-drainage pipe, 9-infusion pump, 91-pipeline, 92-heat dissipation fins, 11-holding tray, 111-carrying tray, 112-placing tray, 113-L-shaped handle, 114-card slot, 12-flow port, 13-through hole, 14-roller Bead, 151-spline sleeve, 152-motor one, 153-spline shaft, 16-ring frame, 17-push rod, 181-lifting plate, 182-slot, 183-motor two, 184-disc, 185-push rod, 186-sealing ring, 191-mesh protective cover, 192-mesh rubber cover, 193-wedge block, 194-elastic card block, 1941-telescopic rod, 1942-spring, 1943-pressure block, 20-spiral groove, 201-rotating ring, 202-connecting plate, 203-cleaning brush, 204-gear ring, 207-motor three, 206-gear, 21-capacitor, 22-plug interface. DETAILED DESCRIPTION

[0033] The present application is further described in detail below in conjunction with the accompanying drawings. It is necessary to point out here that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technical personnel in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0034] See also Figure 1-Figure 8An oil immersion device for producing high-voltage capacitors for microwave ovens comprises a frame 1, the frame 1 comprises a machine platform 01 and two left and right machine bases 02 connected to the inner bottom surface of the machine platform 01, a vacuum tank 2 and a filter 8 are installed on the upper part of the machine platform 01, the vacuum tank 2 is located to the right of the filter 8, the vacuum tank 2 is installed on the top of the right machine base 02, and the filter 8 is installed on the top of the left machine base 02, the vacuum tank 2 and the filter 8 are supported by the two machine bases 02 respectively to improve the stability of the vacuum tank 2 and the filter 8, a tank cover 3 is provided on the top of the vacuum tank 2, a sealing strip is connected to the bottom of the tank cover 3, and the gap between the tank cover 3 and the vacuum tank 2 can be sealed by the sealing strip to improve the sealing performance of the vacuum tank 2, and four locking members for locking the tank cover 3 are provided at intervals along the circumferential direction on the outside of the vacuum tank 2 4. The locking member 4 includes a U-shaped block 41 connected to the upper part of the outer wall of the vacuum tank 2. An inverted T-shaped rod 42 is rotatably connected inside the U-shaped block 41. A pressing block 43 for pressing and fixing the tank cover 3 on the vacuum tank 2 is slidably connected to the inverted T-shaped rod 42. A tension spring 44 is sleeved on the inverted T-shaped rod 42. The two ends of the tension spring 44 are respectively connected to the pressing block 43 and the inverted T-shaped rod 42. The pressing block 43 can be pulled by the tension spring 44 to ensure that the pressing block 43 presses and fixes the tank cover 3 on the vacuum tank 2. The inverted T-shaped rod 42 drives the pressing block 43 to rotate and disengage from the tank cover 3, so that the locking of the tank cover 3 can be released. The inverted T-shaped rod 42 drives the pressing block 43 to rotate and fit tightly with the tank cover 3, so that the tank cover 3 can be locked on the vacuum tank 2 again. The operation of fixing and releasing the tank cover 3 is simple. , convenient and fast, a liquid injection pipe 5 is connected to the lower front part of the vacuum tank 2, a filter plug 51 for filtering impurities is connected in the liquid injection pipe 5, a vacuum pump 6 is installed on the upper part of the machine 01, an exhaust pipe 7 is connected between the vacuum pump 6 and the tank cover 3, an infusion pump 9 is installed on the bottom surface of the machine 01, the infusion pump 9 is connected with the vacuum tank 2 and the filter 8 through a pipeline 91, and heat dissipation fins 92 are installed at intervals on the outer wall of the pipeline 91 connected with the vacuum tank 2, a holding tray 11 for placing the capacitor 21 is slidingly provided in the vacuum tank 2, the holding tray 11 includes a carrier tray 111 slidingly arranged in the vacuum tank 2, a placing tray 112 is placed in the carrier tray 111, two L-shaped handles 113 are connected to the side wall of the placing tray 112 at intervals along the circumferential direction, and the top of the carrier tray 111 is spaced apart along the circumferential direction. There are two slots 114 that match the L-shaped handle 113. The L-shaped handle 113 is positioned by the slots 114, so as to position the placement plate 112 to prevent the placement plate 112 from being displaced. The bottom of the carrier plate 111 and the placement plate 112 are both provided with flow ports 12 for oil flow. The shape of the flow port 12 is gear-shaped. The bottom of the carrier plate 111 and the placement plate 112 are both spaced apart with through holes 13. The through holes 13 are used to accommodate the plug interface 22 of the capacitor 21. The inner wall of the vacuum tank 2 is provided with a spiral groove 20. The outer wall of the carrier plate 111 is provided with a ball 14 located in the spiral groove 20. The right machine base 02 is provided with a driving mechanism 1 for driving the placement plate 11 to rotate. The driving mechanism 1 includes a motor 152 installed in the middle of the inner bottom surface of the right machine base 02.A spline sleeve 151 is connected to the output shaft of the motor 152, and the spline sleeve 151 extends into the vacuum tank 2. A spline shaft 153 is slidably connected to the spline sleeve 151, and the spline shaft 153 is fixedly connected to the bottom of the carrier 111. A ring frame 16 is slidably provided in the vacuum tank 2 and is located at the lower side of the holding plate 11. T-shaped push rods 17 are connected to the top of the ring frame 16 at intervals. The push rods 17 correspond to the through holes 13 one by one, and the push rods 17 are located directly below the corresponding through holes 13. A driving mechanism for driving the ring frame 16 to rise and fall is provided on the right machine base 02. Second, the driving mechanism 2 includes a motor 183 installed on the rear side of the bottom surface of the right machine base 02, a disc 184 is connected to the output shaft of the motor 183, a sealing ring 186 is embedded and installed on the rear side of the bottom of the vacuum tank 2, and an inverted T-shaped lifting plate 181 is slidably connected in the sealing ring 186. The top of the lifting plate 181 is fixedly connected to the bottom of the ring frame 16, and a slot 182 is opened at the bottom of the inverted T-shaped lifting plate 181. A lever 185 is connected to the eccentric position of the front side of the disc 184, and the lever 185 is located in the slot 182.

[0035] Manually release the lock of the tank cover 3 by the locking member 4, then remove the tank cover 3, and then control the motor 152 to drive the spline sleeve 151 to rotate, the spline sleeve 151 rotates to drive the spline shaft 153 to rotate, the spline shaft 153 rotates to drive the receiving tray 11 to rotate, and the receiving tray 11 rotates to drive the ball 14 to rotate, and the ball 14 moves upward through the guidance of the spiral groove 20, thereby driving the receiving tray 11 to move upward, and the spline shaft 153 moves upward accordingly, so that the receiving tray 11 can be raised to facilitate the subsequent placement of the capacitor 21. Then, the capacitor 21 is placed on the placement tray 112, and the plug interface 22 on the capacitor 21 is inserted into the through hole 13, and then the motor 152 is controlled to drive the spline sleeve 151 to reverse, thereby driving the receiving tray 11 to reverse through the spline shaft 153, and then driving the ball 14 to reverse, and the ball 14 drives the receiving tray 11 to move downward through the guidance of the spiral groove 20, so that the capacitor 21 is moved into the vacuum tank 2. After the capacitor 21 is moved into the vacuum tank 2, the tank cover 3 is put back on the vacuum tank 2, and the locking member 4 locks the tank cover 3, and then the vacuum pump 6 is controlled to work, and the air in the vacuum tank 2 is extracted through the exhaust pipe 7, so that the inside of the vacuum tank 2 is maintained in a low vacuum state, thereby removing the air inside the capacitor 21 as much as possible. Then the preheated insulating oil is injected into the vacuum tank 2 through the injection pipe 5. Since the vacuum tank 2 is in a vacuum state, the insulating oil will quickly penetrate into the various tiny gaps of the capacitor 21 under the action of the pressure difference. After the oil injection is completed, the vacuum state is maintained for a period of time, so that the insulating oil can further penetrate into the fine structure of the capacitor 21 under the vacuum environment to ensure the uniformity and integrity of the oil immersion. After that, the vacuum pump 6 is controlled to work, and the gas is injected into the vacuum tank 2 through the exhaust pipe 7, so that the vacuum tank 2 returns to normal pressure, and the insulating oil stably fills the inside of the capacitor 21 under normal pressure.

[0036] After the vacuum tank 2 returns to normal pressure, the control motor 183 drives the disc 184 to rotate. The rotation of the disc 184 pushes the lifting plate 181 to rise and fall through the lever 185, so that the ring frame 16 drives the push rod 17 to rise and fall. The push rod 17 rises and pushes the plug interface 22 on the capacitor 21 to move upward, thereby causing the capacitor 21 to move upward and disengage from the placement plate 112. After the push rod 17 moves downward and disengages from the plug interface 22 on the capacitor 21, the capacitor 21 moves downward and contacts the placement plate 112 under the action of its own gravity. This cycle can cause the capacitor 21 to rise and fall cyclically, thereby realizing dynamic oil immersion of the capacitor 21 and ensuring that the capacitor 21 is fully immersed in oil, so as to improve the oil immersion effect of the capacitor 21. After the capacitor 21 is immersed in oil, the infusion pump 9 is first controlled to work to pump the used insulating oil in the vacuum tank 2 into the filter 8 through the pipeline 91. The insulating oil can be cooled by the heat dissipation fins 92 to protect the infusion pump 9. The impurities in the insulating oil can be filtered by the filter 8. The impurities are blocked in the filter 8, and the clean insulating oil is discharged from the filter 8, so as to achieve effective recovery and filtration of the insulating oil, ensure the quality of the oil, and reduce waste and environmental pollution. Then, the tank cover 3 is removed from the vacuum tank 2, and then the motor 152 is controlled to drive the spline sleeve 151 to rotate, so that the placing plate 11 rotates and rises, thereby driving the capacitor 21 to rotate and rise. The rotation of the capacitor 21 can throw off the excess insulating oil on its outer surface, reduce the waiting time, and improve the efficiency of oil immersion. Finally, the L-shaped handle 113 is lifted to remove the placement plate 112 from the carrier plate 111, and replace it with the placement plate 112 with the capacitor 21. Repeat the above operation to repeat the capacitor 21 immersion in oil.

[0037] See also Figure 9-10 A protection mechanism for protecting the capacitor 21 is provided on the placement plate 112, and the protection mechanism includes a mesh protection cover 191 placed on the placement plate 112, a mesh rubber cover 192 is connected to the inner wall of the mesh protection cover 191, and two wedge blocks 193 are connected to the lower part of the outer wall of the mesh protection cover 191 at intervals along the circumferential direction, and the sides of the two L-shaped handles 113 close to each other are provided with elastic blocks 194 for clamping the wedge blocks 193, and the elastic blocks 194 include a telescopic rod 1941 connected to the L-shaped handle 113, and a pressure block 1943 for clamping the wedge blocks 193 is connected to the telescopic end of the telescopic rod 1941, and a spring 1942 is provided in the fixed end of the telescopic rod 1941.

[0038] After placing the capacitor 21 on the placement tray 112, the mesh protective cover 191 is placed on the placement tray 112. The mesh protective cover 191 moves downward, driving the wedge block 193 downward. When the wedge block 193 moves downward to contact the pressing block 1943, the wedge block 193 continues to move downward and pushes the pressing block 1943 toward the L-shaped handle 113 through its upper inclined surface. The telescopic rod 1941 contracts and compresses the spring 1942. When the wedge block 193 moves downward and passes over the pressing block 1943, the telescopic rod 1941 extends under the reset action of the spring 1942, so that the pressing block 1943 moves and resets to press and fix the wedge block 193, thereby locking the mesh protective cover 191 on the placement tray 112. There is space between the top of the inner side of the mesh protective cover 191 and the top of the capacitor 21 for the capacitor 21 to be raised and lowered, which will not hinder the subsequent raising and lowering of the capacitor 21. The mesh protective cover 191 can cover and protect the capacitor 21 to prevent the capacitor 21 from being thrown out of the receiving tray 11 and colliding with the vacuum tank 2 and being damaged when the receiving tray 11 rotates. The mesh rubber cover 192 can protect the capacitor 21 to prevent the capacitor 21 from colliding with the mesh protective cover 191 and being damaged. When the capacitor 21 on the placement tray 112 needs to be removed, the pressing block 1943 is first moved to disengage from the wedge block 193 to release the lock on the mesh protective cover 191, and then the mesh protective cover 191 can be removed from the placement tray 112, and then the capacitor 21 can be removed from the placement tray 112.

[0039] See also Figure 2 and Fig.11 The filter 8 includes a cylinder 81, a cylinder cover 82, a positioning tube 83, a filter cylinder 84 and a cannula 85. The cylinder 81 is installed on the upper part of the machine platform 01, and the cylinder 81 is also installed on the top of the left machine base 02. The infusion pump 9 is connected to the cylinder 81 through a pipeline 91. The liquid outlet end of the pipeline 91 connected to the cylinder 81 is connected to the positioning tube 83. The cannula 85 is embedded at the bottom of the filter cylinder 84. The filter cylinder 84 is sleeved on the outside of the positioning tube 83 through the cannula 85. The top of the filter cylinder 84 is open. The height of the cannula 85 is lower than the positioning tube 83. The height of the filter cylinder 84 is higher than the positioning tube 83. The height of the filter cylinder 84 is lower than the cylinder 81. The cylinder cover 82 is clamped on the top of the cylinder 81, and the bottom left side of the cylinder 81 is connected to a drain pipe 86.

[0040] When the infusion pump 9 is working, the used insulating oil in the vacuum tank 2 is pumped into the positioning tube 83 through the pipeline 91, and the insulating oil is then discharged from the positioning tube 83 and enters the filter cartridge 84. The impurities in the insulating oil are filtered by the filter cartridge 84, so that the impurities are blocked in the filter cartridge 84, and the clean insulating oil is discharged from the filter cartridge 84 and finally discharged through the drain pipe 86, so as to achieve effective recovery and filtration of the insulating oil, ensure the quality of the oil, and reduce waste and environmental pollution. Remove the cylinder cover 82 from the cylinder 81, and then remove the filter cartridge 84 from the cylinder 81, so as to facilitate the cleaning of the impurities in the filter cartridge 84. Insert the insert 85 outside the positioning tube 83, and the filter cartridge 84 can be locked in the cylinder 81 to prevent the displacement of the filter cartridge 84 from affecting the filtering operation.

[0041] See also Fig.11 A cleaning mechanism for cleaning the filter cartridge 84 is provided in the cylinder 81, and the cleaning mechanism includes a rotating ring 201 rotatably connected to the lower part of the cylinder 81, and a cleaning brush 203 is connected to the rotating ring 201 through a connecting plate 202, and the cleaning brush 203 contacts the filter cartridge 84, and a gear ring 204 is connected to the rotating ring 201. A motor three 207 is installed on the inner wall of the left machine base 02, and the output shaft of the motor three 207 extends into the cylinder 81 and is connected to a gear 206, and the gear 206 is meshed with the gear ring 204.

[0042] The control motor 3 207 drives the gear 206 to rotate, the gear 206 drives the gear ring 204 to rotate, the gear ring 204 drives the rotating ring 201 to rotate, the rotating ring 201 drives the cleaning brush 203 to rotate through the connecting plate 202, and the rotation of the cleaning brush 203 can effectively clean the impurities on the filter cartridge 84, ensuring that the filter cartridge 84 remains clean, thereby maintaining efficient filtering performance.

[0043] An oil immersion process for producing microwave oven high-voltage capacitors comprises the following steps: S1. Putting in the capacitor 21: removing the tank cover 3, and then controlling the motor 152 to drive the spline sleeve 151 to rotate, the spline sleeve 151 rotates to drive the spline shaft 153 to rotate, the spline shaft 153 rotates to drive the containing plate 11 to rotate, the containing plate 11 rotates to drive the ball 14 to rotate, and the ball 14 moves upward through the guidance of the spiral groove 20, so as to lift the containing plate 11, and then place the capacitor 21 on the placing plate 112, and then control the motor 152 to drive the spline sleeve 151 to reverse, so that the containing plate 11 drives the capacitor 21 to move downward into the vacuum tank 2, and then put the tank cover 3 back on the vacuum tank 2; S2, vacuuming: controlling the vacuum pump 6 to work, and extracting the air in the vacuum tank 2 through the exhaust pipe 7, so that the inside of the vacuum tank 2 is maintained in a low vacuum state; S3, oil injection: inject the preheated insulating oil into the vacuum tank 2 through the injection pipe 5. Since the vacuum tank 2 is in a vacuum state, the insulating oil will quickly penetrate into each tiny gap of the capacitor 21 under the action of the pressure difference; S4, pressure maintenance and penetration: After the oil filling is completed, the vacuum state is maintained for a period of time to allow the insulating oil to further penetrate into the fine structure of the capacitor 21 under the vacuum environment. After that, the vacuum pump 6 is controlled to work and gas is injected into the vacuum tank 2 through the exhaust pipe 7, so that the vacuum tank 2 returns to normal pressure, so that the insulating oil can stably fill the capacitor 21 under normal pressure; S5, dynamic oil immersion: after the vacuum tank 2 returns to normal pressure, the control motor 183 drives the disc 184 to rotate, and the rotation of the disc 184 pushes the lifting plate 181 to rise and fall through the lever 185, so that the ring frame 16 drives the push rod 17 to rise and fall, so as to push the capacitor 21 to rise and fall, and the capacitor 21 is dynamically immersed in oil; S6, extracting insulating oil: controlling the infusion pump 9 to work, and pumping the used insulating oil in the vacuum tank 2 to the filter 8 for filtration; S7. Remove the capacitor 21: control the motor 152 to drive the spline sleeve 151 to rotate, so that the containing plate 11 rotates and rises, thereby driving the capacitor 21 to rotate and rise. The rotation of the capacitor 21 can shake off the excess insulating oil on its outer surface, and the capacitor 21 rises and is removed from the vacuum tank 2.

[0044] The above-mentioned embodiments only express the preferred implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for those skilled in the art, several modifications, improvements and substitutions can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention.

Claims

1. An oil immersion device for producing microwave oven high-voltage capacitors, comprising a frame (1), a vacuum tank (2) and a filter (8) being mounted on the upper portion of the frame (1), a tank cover (3) being mounted on the top of the vacuum tank (2), locking members (4) for locking the tank cover (3) being arranged at intervals along the circumferential direction on the outer portion of the vacuum tank (2), a liquid injection pipe (5) being connected to the lower portion of the vacuum tank (2), a vacuum pump (6) being mounted on the upper portion of the frame (1), and an exhaust pipe (7) being connected between the vacuum pump (6) and the tank cover (3) The frame (1) is provided with an infusion pump (9), the infusion pump (9) being connected to the vacuum tank (2) and the filter (8) through a pipe (91), the vacuum tank (2) being provided with a slidable receiving tray (11) for receiving the capacitor (21), the bottom of the receiving tray (11) being provided with a flow opening (12) for oil flow, the bottom of the receiving tray (11) being provided with through holes (13) at intervals, the through holes (13) being used to accommodate the plug interface (22) of the capacitor (21), characterized in that: A spiral groove (20) is formed on the inner wall of the vacuum tank (2), a ball bearing (14) is formed on the outer wall of the receiving plate (11) and is located in the spiral groove (20), a driving mechanism (1) for driving the receiving plate (11) to rotate is provided on the frame (1), a ring frame (16) is provided in the vacuum tank (2) and is located below the receiving plate (11), a push rod (17) is connected to the top of the ring frame (16) at intervals, the push rods (17) correspond to the through holes (13) one by one, the push rods (17) are located directly below the corresponding through holes (13), and a driving mechanism (2) for driving the ring frame (16) to rise and fall is provided on the frame (1).

2. The oil immersion device for producing microwave oven high-voltage capacitors according to claim 1, characterized in that: The containing plate (11) comprises a carrier plate (111) slidably arranged in the vacuum tank (2), a placing plate (112) being placed in the carrier plate (111), two L-shaped handles (113) being connected to the side wall of the placing plate (112) at intervals along the circumferential direction, two slots (114) matching the L-shaped handles (113) being spaced apart along the circumferential direction on the top of the carrier plate (111), a flow opening (12) being provided on the bottom of the carrier plate (111) and the placing plate (112), through holes (13) being spaced apart on the bottom of the carrier plate (111) and the placing plate (112), and balls (14) being provided on the outer wall of the carrier plate (111).

3. The oil immersion device for producing microwave oven high-voltage capacitors according to claim 2, characterized in that: The driving mechanism 1 comprises a motor 1 (152) mounted on the inner bottom surface of the frame (1); a spline sleeve (151) is connected to the output shaft of the motor 1 (152); the spline sleeve (151) extends into the vacuum tank (2); a spline shaft (153) is slidably connected inside the spline sleeve (151); and the spline shaft (153) is fixedly connected to the bottom of the carrier plate (111).

4. The oil immersion device for producing microwave oven high-voltage capacitors according to claim 3, characterized in that: The second driving mechanism comprises a second motor (183) mounted on the inner bottom surface of the frame (1); a disc (184) is connected to the output shaft of the second motor (183); a sealing ring (186) is embedded in the bottom of the vacuum tank (2); an inverted T-shaped lifting plate (181) is slidably connected inside the sealing ring (186); the top of the lifting plate (181) is fixedly connected to the bottom of the ring frame (16); a straight groove (182) is formed at the lower part of the inverted T-shaped lifting plate (181); a lever (185) is connected to the eccentric position of the disc (184); and the lever (185) is located in the straight groove (182).

5. The oil immersion device for producing microwave oven high-voltage capacitors according to claim 4, characterized in that: A protection mechanism for protecting the capacitor (21) is provided on the placement plate (112), the protection mechanism comprising a mesh protection cover (191) placed on the placement plate (112), a mesh rubber cover (192) connected to the inner wall of the mesh protection cover (191), two wedge blocks (193) connected to the lower part of the outer wall of the mesh protection cover (191) at intervals along the circumferential direction, and elastic clamping blocks (194) for clamping the wedge blocks (193) are provided on the sides of the two L-shaped handles (113) close to each other.

6. The oil immersion device for producing microwave oven high-voltage capacitors according to claim 5, characterized in that: The filter (8) comprises a cylinder (81), a cylinder cover (82), a positioning tube (83), a filter cylinder (84), a cannula (85) and a drainage tube (86). The cylinder (81) is mounted on the upper part of the frame (1). The infusion pump (9) is connected to the cylinder (81) via a pipeline (91). The liquid outlet end of the pipeline (91) connected to the cylinder (81) is connected to the positioning tube (83). The bottom of the filter cylinder (84) is embedded with a cannula (85). The filter cylinder (84) is sleeved on the outside of the positioning tube (83) via the cannula (85). The top of the filter cylinder (84) is open. The height of the cannula (85) is lower than the positioning tube (83). The height of the filter cylinder (84) is higher than the positioning tube (83). The height of the filter cylinder (84) is lower than the cylinder (81). The top of the cylinder (81) is clamped with a cylinder cover (82). The bottom of the cylinder (81) is connected to the drainage tube (86).

7. The oil immersion device for producing microwave oven high-voltage capacitors according to claim 6, characterized in that: A cleaning mechanism for cleaning the filter cartridge (84) is provided in the cylinder (81), the cleaning mechanism comprising a rotating ring (201) rotatably connected to the lower portion of the cylinder (81), a cleaning brush (203) being connected to the rotating ring (201) via a connecting plate (202), the cleaning brush (203) being in contact with the filter cartridge (84), a gear ring (204) being connected to the rotating ring (201), a motor three (207) being mounted on the inner wall of the left machine base (02), an output shaft of the motor three (207) extending into the cylinder (81) and connected to a gear (206), the gear (206) being meshed with the gear ring (204).

8. An oil impregnation process for producing microwave oven high-voltage capacitors, based on the oil impregnation device for producing microwave oven high-voltage capacitors according to claim 7, characterized in that: The following steps are involved: S1. Place the capacitor (21): remove the tank cover (3), then control the motor 1 (152) to drive the spline sleeve (151) to rotate, the spline sleeve (151) rotates to drive the spline shaft (153), the spline shaft (153) rotates to drive the receiving plate (11), the receiving plate (11) rotates to drive the ball bearing (14), and the ball bearing (14) moves upwards through the guidance of the spiral groove (20), thereby raising the receiving plate (11), and then place the capacitor (21) on the receiving plate (112), and then control the motor 1 (152) to drive the spline sleeve (151) to reverse, so that the receiving plate (11) drives the capacitor (21) to move downwards into the vacuum tank (2), and then put the tank cover (3) back on the vacuum tank (2); S2, vacuuming: controlling the vacuum pump (6) to operate, and extracting the air in the vacuum tank (2) through the exhaust pipe (7), so that the interior of the vacuum tank (2) is maintained in a low vacuum state; S3, oil injection: inject the preheated insulating oil into the vacuum tank (2) through the liquid injection pipe (5). Since the vacuum tank (2) is in a vacuum state, the insulating oil will quickly penetrate into each tiny gap of the capacitor (21) under the action of the pressure difference; S4, pressure maintenance and penetration: After the oil filling is completed, the vacuum state is maintained for a period of time to allow the insulating oil to further penetrate into the fine structure of the capacitor (21) under the vacuum environment. After that, the vacuum pump (6) is controlled to work and gas is injected into the vacuum tank (2) through the exhaust pipe (7), so that the vacuum tank (2) returns to normal pressure, so that the insulating oil stably fills the capacitor (21) under normal pressure; S5, dynamic oil immersion: after the vacuum tank (2) returns to normal pressure, the second motor (183) is controlled to drive the disc (184) to rotate, and the rotation of the disc (184) drives the lifting plate (181) to rise and fall through the lever (185), so that the ring frame (16) drives the push rod (17) to rise and fall, thereby pushing the capacitor (21) to rise and fall, and the capacitor (21) is dynamically immersed in oil; S6, extracting the insulating oil: controlling the infusion pump (9) to operate, and extracting the used insulating oil in the vacuum tank (2) to the filter (8) for filtration; S7, removing the capacitor (21): controlling the motor 1 (152) to drive the spline sleeve (151) to rotate, so that the containing plate (11) rotates and rises, thereby driving the capacitor (21) to rotate and rise. The rotation of the capacitor (21) can shake off excess insulating oil on its outer surface, and the capacitor (21) rises and is removed from the vacuum tank (2).

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