Three-phase differential-mode magnetic integrated inductor

By introducing eddy current filter cones and scraper cleaning mechanisms into the three-phase differential mode magnetic integrated inductor, the flow blockage and heat dissipation problems caused by insulating oil residue are solved, thereby achieving stable operation and improved safety of the inductor.

CN120473295BActive Publication Date: 2026-04-07郑刚
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-04-24
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

During long-term operation, the insulating oil of a three-phase differential mode magnetic integrated inductor will accumulate sludge due to aging and wear, which will obstruct its flow, reduce its heat dissipation, affect the inductor's performance, and may cause safety accidents.

Method used

A three-phase differential mode magnetic integrated inductor, comprising a transformer section, an installation section, a drive assembly, a current guiding mechanism, and a cleaning mechanism, is designed. It filters impurities through an eddy current blade filter cone, cleans the filter cone with a scraper, recovers kinetic energy using an energy storage spring, and controls the cleaning process with an induction disk and a limit block, maintaining the flow of insulating oil and heat dissipation.

Benefits of technology

It effectively filters and cleans impurities in insulating oil, maintains flow efficiency and heat dissipation, prevents component wear, extends inductor lifespan, and avoids safety accidents.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application belongs to the technical field of inductors, and particularly relates to a three-phase differential-mode magnetic integrated inductor, which comprises a transformer part, a mounting part, a driving assembly, a flow guiding mechanism and a cleaning mechanism. The transformer part comprises a bearing substrate, a mounting cover and a coil set. The coil set and the mounting cover are fixedly installed on the upper end surface of the bearing substrate, and the coil set is located in the interior of the mounting cover. The mounting part comprises a mounting cylinder and a flow guiding cylinder. The mounting cylinder is fixedly installed on the upper end surface of the bearing substrate, and the flow guiding cylinder is fixedly installed on the upper end surface of the mounting cylinder. The flow guiding mechanism comprises a bearing plate, an eddy current blade and a filter cone. The bearing plate is rotationally arranged in the inner cavity of the mounting cylinder. The eddy current blade is fixedly installed on the upper end of the bearing plate. The filter cone is fixedly installed in the inner cavity of the flow guiding cylinder and is of an elastic structure. Through the cooperation of the above-mentioned structures, kinetic energy is transmitted to the scraping sheet when the eddy current blade stops rotating, so that the outer wall of the filter cone is scraped by the scraping sheet when the insulating oil stops flowing, the filter cone is cleaned, and the heat exchange effect is maintained.
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Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of inductors, and particularly relates to a three-phase differential-mode magnetic integrated inductor. BACKGROUND

[0002] In the context of continuous innovation of power electronic systems, the three-phase differential-mode magnetic integrated inductor is widely used in the fields of industrial motor drives, new energy power generation, uninterruptible power supplies and the like due to its advantages of filtering, energy storage and electromagnetic interference suppression, etc. In order to ensure stable performance and prolong service life, the inside of the inductor is often filled with insulating oil, which not only provides electrical insulation but also takes away heat through flow to maintain the normal working temperature of the inductor.

[0003] However, when the three-phase differential-mode magnetic integrated inductor is operated for a long time, sludge is generated in the internal insulating oil. On the one hand, the insulating oil is aged and decomposed in a high-temperature and high-electric-field environment, reacts with oxygen to generate organic acid, and further polymerizes to form insoluble colloid and asphaltene. High temperature also causes thermal decomposition to generate carbide. On the other hand, inductor components are worn and corroded, magnetic core particles are detached, coil insulation layer aging debris and metal component corrosion products are mixed in, etc.

[0004] These sludges seriously affect the components that control the flow of insulating oil, such as oil pumps, valves, pipelines, etc. The sludge accumulates on the surface and in the internal channels of the components, increasing the operating resistance, increasing the energy consumption of the oil pump, and also wearing out the critical parts, leading to a decrease in the sealing performance and operating accuracy of the components, resulting in leakage, failure, and damage to the stability and reliability of the insulating oil flow.

[0005] After the control components are damaged, the flow of insulating oil is blocked, the heat dissipation effect is greatly reduced, the heat cannot be taken away from the heating parts in time, the local temperature rises, the aging and decomposition of the insulating oil are accelerated, a vicious cycle is formed, and high temperature also reduces the performance of the inductor, affecting the performance of the magnetic core and the resistance of the coil, and further affecting the inductance value, filtering and electromagnetic compatibility, etc. Even cause safety accidents such as insulation breakdown and fire.

[0006] Therefore, the application provides a three-phase differential-mode magnetic integrated inductor. SUMMARY

[0007] In order to make up for the deficiencies of the prior art and solve at least one technical problem raised in the background art.

[0008] The technical scheme adopted by the application to solve the technical problems is that the three-phase differential-mode magnetic integrated inductor comprises a power transformation part, a mounting part, a driving assembly, a flow guiding mechanism and a cleaning mechanism.

[0009] The power transformation part comprises a bearing base plate, a mounting cover and a coil set. The coil set and the mounting cover are both fixedly installed on the upper end face of the bearing base plate, and the coil set is located inside the mounting cover.

[0010] The mounting part comprises a mounting cylinder and a flow guide cylinder, the mounting cylinder is fixedly mounted on the upper end surface of the bearing substrate, and the flow guide cylinder is fixedly mounted on the upper end surface of the mounting cylinder;

[0011] The flow guide mechanism comprises a bearing plate, a vortex blade and a filter cone, the bearing plate is rotationally arranged in the inner cavity of the mounting cylinder, the vortex blade is fixedly mounted on the upper end of the bearing plate, and the filter cone is fixedly mounted in the inner cavity of the flow guide cylinder and is of an elastic structure;

[0012] The rotation of the bearing plate is controlled by the driving assembly;

[0013] The cleaning mechanism comprises a scraping piece and an energy storage spring, the energy storage spring is used for recovering the kinetic energy of the vortex blade during rotation and transmitting the kinetic energy to the scraping piece when the vortex blade stops rotating, and the scraping piece is used for scraping the surface of the filter cone.

[0014] Preferably, the driving assembly comprises a driving motor, a liquid discharge cover and a sealing plate, the sealing plate is fixedly mounted in the inner cavity of the mounting cylinder, the driving motor is fixedly mounted on the inner wall of the mounting cylinder, the output shaft of the driving motor penetrates through the sealing plate and is fixedly connected with the bottom surface of the bearing plate, and the liquid discharge cover is fixedly mounted on the radial outer wall of the mounting cylinder and the inner cavity of the liquid discharge cover is in communication with the inner cavity of the mounting cylinder.

[0015] Preferably, the inner wall of the flow guide cylinder is fixedly mounted with a mounting bracket, a transmission ring is rotationally mounted in the mounting bracket, a connecting cylinder is fixedly mounted on the axial end of the transmission ring, one end of the scraping piece is fixedly connected with the radial outer wall of the connecting cylinder, the scraping piece is provided with a plurality of scraping pieces, and the plurality of scraping pieces are uniformly arranged in a ring shape along the axis of the connecting cylinder.

[0016] Preferably, the side wall of the scraping piece is obliquely arranged, the inner wall of the flow guide cylinder is fixedly mounted with an elastic strip, and the other end of the elastic strip is fixedly mounted with a knocking ball.

[0017] The radial inner wall of the flow guide cylinder is provided with a pollution discharge port, the radial outer wall of the flow guide cylinder is fixedly mounted with a storage box, and the inner cavity of the storage box is in communication with the inner cavity of the flow guide cylinder through the pollution discharge port.

[0018] Preferably, the middle part of the transmission ring is rotationally arranged with a control tooth disc, one end of the energy storage spring is fixedly connected with the outer wall of the control tooth disc, and the other end of the energy storage spring is fixedly connected with the inner wall of the transmission ring.

[0019] The bottom surface of the control tooth disc is fixedly mounted with a driven disc through a connecting shaft.

[0020] Preferably, the axial end center position of the vortex blade is fixedly mounted with a transmission shaft, the transmission shaft penetrates through the filter cone and is fixedly mounted with a driving disc;

[0021] The outer wall of the driving disc is fixedly mounted with a control block, the outer wall of the driven disc is fixedly mounted with an attraction block, and the control block and the attraction block are attracted to each other by magnetic force.

[0022] Friction steel balls are rolled on the inner wall of the driven disc, and the outer wall of the friction steel balls is in contact with the outer wall of the driving disc.

[0023] Preferably, a control gear ring is fixedly installed on the upper end face of the transmission ring;

[0024] A guide frame is fixedly installed on the upper end face of the mounting bracket, and a limit block is slidably installed on the inner wall of the guide frame;

[0025] The guide frame is located between the control gear ring and the control gear disc.

[0026] Preferably, a sensor disk is mounted on the upper end face of the mounting frame via an elastic element, and a sliding strip is fixedly mounted on the bottom surface of the sensor disk. The sliding strip passes through the guide frame and the limiting block, and its outer wall slides against the inner wall of the guide frame.

[0027] The side wall of the sliding bar is provided with a guide groove, and the inner wall of the limiting block is fixedly installed with a guide pin that slides with the guide groove.

[0028] Preferably, a gate for closing the sewage outlet is slidably installed on the inner wall of the guide tube, a connecting block is fixedly installed on the outer wall of the gate, the outer wall of the connecting block is elastically connected to the inner wall of the guide tube, a connecting rope is fixedly installed on the outer wall of the induction disk, and the other end of the connecting rope is fixedly connected to the outer wall of the connecting block.

[0029] The beneficial effects of this invention are as follows:

[0030] 1. This invention incorporates a filter cone to filter impurities in insulating oil, preventing these impurities from contacting the vortex blades, thereby extending the lifespan of the vortex blades and maintaining the efficiency of fluid flow. A scraper blade, its outer wall in contact with the surface of the filter cone, is controlled to slide along the radial outer wall of the filter cone, scraping away impurities adhering to its surface and maintaining the filter cone's permeability. An energy storage spring recovers the kinetic energy of the vortex blades during rotation and transfers this energy to the scraper blade when the blades stop rotating. Thus, when the insulating oil stops flowing, the scraper blade cleans the outer wall of the filter cone, maintaining its heat exchange efficiency.

[0031] 2. This invention, by setting an induction disc, causes the sliding strip to slide downwards when the insulating oil flows inside the guide tube. When the insulating oil stops flowing, the induction disc is elastically driven to reset the sliding strip. The side wall of the sliding strip is provided with a guide groove, and the inner wall of the limiting block is fixedly installed with a guide pin that slides with the guide groove. By sliding the sliding strip up and down, and by using the cooperation of the guide groove and the guide pin, the sliding direction of the limiting block is controlled. Thus, when the insulating oil flows, the limiting block is controlled to engage with the control toothed ring, and when the insulating oil stops flowing, the limiting block is controlled to engage with the control toothed disc. At this time, the energy storage spring releases elastic potential energy, thereby realizing the cleaning of the filter cone according to the flow of insulating oil. Attached Figure Description

[0032] The invention will now be further described with reference to the accompanying drawings.

[0033] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0034] Figure 2 This is a schematic diagram of the internal structure of the mounting cover in this invention;

[0035] Figure 3 This is a schematic diagram of the flow guide tube in this invention;

[0036] Figure 4 This is a schematic diagram of the internal structure of the mounting cylinder in this invention;

[0037] Figure 5 This is a schematic diagram of the internal structure of the guide tube in this invention;

[0038] Figure 6 yes Figure 5 Enlarged view of a portion of point A in the middle;

[0039] Figure 7 This is a schematic diagram of the installation of the active disk in this invention;

[0040] Figure 8 This is a schematic diagram of the installation of the control gear plate in this invention;

[0041] Figure 9 This is a schematic diagram of the installation of the attraction block in this invention;

[0042] Figure 10 This is a schematic diagram of the internal structure of the guide frame in this invention;

[0043] Figure 11 This is a schematic diagram of the installation of the induction disk in this invention.

[0044] In the diagram: 1. Mounting cover; 2. Supporting base plate; 3. Coil assembly; 4. Mounting cylinder; 5. Guide cylinder; 6. Induction disc; 7. Mounting frame; 8. Drainage cover; 9. Storage box; 10. Vortex vane; 11. Support plate; 12. Sealing plate; 13. Drive motor; 14. Scraper; 15. Filter cone; 16. Connecting rope; 17. Elastic strip; 18. Striking ball; 19. Gate; 20. Drive shaft; 21. Connecting block; 22. Connecting cylinder; 23. Active disc; 24. Control block; 25. Control gear disc; 26. Control gear ring; 27. Guide frame; 28. Energy storage spring; 29. ​​Driven disc; 30. Transmission ring; 31. Suction block; 32. Friction steel ball; 33. Sliding strip; 34. Limiting block; 35. Guide pin; 36. Guide groove. Detailed Implementation

[0045] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0046] like Figures 1 to 11 As shown, the three-phase differential mode magnetic integrated inductor of the present invention includes a transformer section, a mounting section, a drive assembly, a current guiding mechanism, and a cleaning mechanism.

[0047] The substation section includes a carrier substrate 2, a mounting cover 1, and a coil group 3. Both the coil group 3 and the mounting cover 1 are fixedly mounted on the upper surface of the carrier substrate 2. The coil group 3 is located inside the mounting cover 1. The carrier substrate 2, the mounting cover 1, and the coil group 3 form a complete three-phase differential mode magnetic integrated inductor structure. The three-phase differential mode magnetic integrated inductor can utilize its inductance characteristics to present a high impedance to high-frequency harmonics in the differential mode current, making it difficult for high-frequency harmonics to pass through, thereby achieving the purpose of filtering out high-frequency harmonics and making the output current smoother and closer to the ideal sine wave.

[0048] The connection between the support substrate 2 and the mounting cover 1 is provided with sealing rubber. The sealed cavity after the mounting cover 1 and the support substrate 2 are assembled is used to inject insulating oil to achieve the effects of insulation, anti-interference and heat dissipation. In addition, the side wall of the mounting cover 1 is an insulating ceramic structure to facilitate the heat transfer of the insulating oil.

[0049] The top of the mounting cover 1 is equipped with an insulating oil replenishment port. Inside the mounting cover 1, there is also a temperature sensor and an information interaction unit. The temperature sensor is used to monitor the temperature of the insulating oil in real time and feeds the temperature information back to the back-end terminal through the information interaction unit. The back-end terminal can then monitor the temperature of each inductor in real time as one of the evaluation data to prevent inductor overload.

[0050] The mounting section includes a mounting cylinder 4 and a guide cylinder 5. The mounting cylinder 4 is fixedly mounted on the upper end face of the support substrate 2. The side wall of the mounting cylinder 4 is provided with a drain port. The guide cylinder 5 is fixedly mounted on the upper end face of the mounting cylinder 4. The insulating oil inside the mounting cover 1 is controlled to enter the mounting cylinder 4 through the guide cylinder 5 and then discharged into the inner cavity of the mounting cover 1 through the drain port on the side wall of the mounting cylinder 4. This disturbs the liquid flow inside the mounting cover 1, thereby keeping the insulating oil inside in uniform contact with the side wall of the mounting cover 1, and thus keeping the internal heat-generating components dissipate heat evenly.

[0051] The flow guiding mechanism includes a support plate 11, vortex blades 10, and a filter cone 15. The support plate 11 is rotatably disposed in the inner cavity of the mounting cylinder 4. The vortex blades 10 are fixedly installed on the upper end of the support plate 11. Multiple vortex blades 10 are provided and are evenly distributed in a ring along the middle of the support plate 11. By controlling the rotation of the vortex blades 10, the centrifugal force is used to control the insulating oil to enter the mounting cylinder 4 from the flow guiding cylinder 5, and then discharge it into the inner cavity of the mounting cover 1 through the drain port on the side wall of the mounting cylinder 4.

[0052] The filter cone 15 is fixedly installed in the inner cavity of the guide tube 5 and is an elastic structure. The filter cone 15 is a wire mesh with a conical structure. It is used to filter the residue in the insulating oil (the residue comes from the wear of the magnetic core of the inductor under long-term electromagnetic action and the presence of dust, metal shavings and other impurities in the production environment if the production environment is not clean during the manufacturing process of the inductor). It prevents the residue in the insulating oil from contacting the eddy current blade 10, thereby improving the service life of the eddy current blade 10 and maintaining the efficiency of the turbulent fluid flow. The rotation of the support plate 11 is controlled by the drive assembly, which serves as the power source for the rotation of the support plate 11.

[0053] The cleaning mechanism includes a scraper 14 and an energy storage spring 28. The scraper 14 is used to scrape the surface of the filter cone 15. The outer wall of the scraper 14 is in contact with the surface of the filter cone 15. By controlling the scraper 14 to slide along the radial outer wall of the filter cone 15, the residue attached to the surface of the filter cone 15 is scraped off to maintain the permeability of the filter cone 15.

[0054] The energy storage spring 28 is used to recover the kinetic energy when the vortex blade 10 rotates, and transfer the kinetic energy to the scraper blade 14 when the vortex blade 10 stops rotating. Thus, when the insulating oil stops flowing, the outer wall of the filter cone 15 is scraped by the scraper blade 14 to clean the filter cone 15 and maintain the heat exchange effect.

[0055] The drive assembly includes a drive motor 13, a drain cover 8, and a sealing plate 12. The sealing plate 12 fixes the inner cavity of the mounting cylinder 4 and divides the inner cavity of the mounting cylinder 4 into two spaces to isolate the insulating oil.

[0056] The drive motor 13 is fixedly installed on the inner wall of the mounting cylinder 4, and the output shaft of the drive motor 13 passes through the closed plate 12 and is fixedly connected to the bottom surface of the support plate 11. The drive motor 13 is a common servo motor used to control the rotation of the support plate 11. The control chip inside the drive motor 13 is electrically connected to the information interaction unit. The back-end terminal sends a command to the information interaction terminal, which is transmitted to the control chip of the drive motor 13 to control the speed of the drive motor 13, so as to realize the purpose of the back-end terminal controlling the rotation of the drive motor 13 through temperature data.

[0057] The drain cover 8 is fixedly installed on the radial outer wall of the mounting cylinder 4, and the inner cavity of the drain cover 8 is connected to the inner cavity of the mounting cylinder 4. When the bearing plate 11 rotates, the centrifugal force generated will discharge the insulating oil inside through the drain cover 8.

[0058] A mounting bracket 7 is fixedly installed on the inner wall of the guide tube 5. A transmission ring 30 is rotatably installed inside the mounting bracket 7. A bearing is provided on the radial outer wall of the transmission ring 30, and the outer ring of the bearing is connected to the mounting bracket 7.

[0059] A connecting cylinder 22 is fixedly installed on the axial end of the transmission ring 30. One end of the scraper 14 is fixedly connected to the radial outer wall of the connecting cylinder 22. Rotating the transmission ring 30 drives the scraper 14 to rotate, which is used to scrape the surface of the filter cone 15.

[0060] Multiple scraper blades 14 are provided, and multiple scraper blades 14 are evenly arranged in a ring along the axis of the connecting cylinder 22 to increase the scraping frequency of the surface of the filter cone 15. At the same time, the evenly arranged scraper blades 14 can make the connecting cylinder 22 subject to uniform centrifugal force during rotation, thus maintaining the stability of rotation.

[0061] In a preferred embodiment of the present invention, the side wall of the scraper blade 14 is inclined, and an elastic strip 17 is fixedly installed on the inner wall of the guide tube 5. When the scraper blade 14 rotates, one end of the elastic strip 17 is lifted by the inclined arrangement of the scraper blade 14. After the scraper blade 14 and the elastic strip 17 are separated, the elastic strip 17 returns to its original position. At the same time, the outer wall of the scraper blade 14 is inclined, which can improve the efficiency of scraping and cleaning by utilizing the inclined surface.

[0062] A striking ball 18 is fixedly installed at the other end of the elastic strip 17. During the reset process of the elastic strip 17, the striking ball 18 strikes the filter cone 15, causing the filter cone 15 to vibrate, so that the attached residue can be removed.

[0063] The inner radial wall of the guide tube 5 is provided with a drain port, and the outer radial wall of the guide tube 5 is fixedly installed with a collection box 9. The inner cavity of the collection box 9 is connected to the inner cavity of the guide tube 5 through the drain port. The slag that falls off the filter cone 15 enters the collection box 9 through the drain port, collects the slag, thereby reducing the slag content in the insulating oil and maintaining the quality of the insulating oil.

[0064] In a preferred embodiment of the present invention, a control gear 25 is rotatably provided in the middle of the transmission ring 30, and the axis of the control gear 25 coincides with the axis of the transmission ring 30.

[0065] One end of the energy storage spring 28 is fixedly connected to the outer wall of the control gear 25, and the other end of the energy storage spring 28 is fixedly connected to the inner wall of the transmission ring 30. When the energy storage spring 28 has elastic potential energy, the control gear 25 is fixed and the transmission ring 30 is released. At this time, the energy storage spring 28 controls the transmission ring 30 to rotate through elastic force, which serves as the power for the rotation of the scraper 14.

[0066] The driven disc 29 is fixedly mounted on the bottom surface of the control disc 25 via a coupling shaft, which fixes the transmission ring 30. When the driven disc 29 is rotated, the kinetic energy of the driven disc 29 is converted into the elastic potential energy of the energy storage spring 28.

[0067] A drive shaft 20 is fixedly installed at the center of the axial end of the vortex vane 10. When the vortex vane 10 rotates, it drives the drive shaft 20 to rotate. The drive shaft 20 passes through the filter cone 15 and is fixedly installed with the drive disc 23. When the drive shaft 20 rotates, it drives the drive disc 23 to rotate.

[0068] A control block 24 is fixedly installed on the outer wall of the active disk 23, and an attraction block 31 is fixedly installed on the outer wall of the driven disk 29. The control block 24 and the attraction block 31 attract each other through magnetic force. The control block 24 and the attraction block 31 are magnets that attract each other.

[0069] When the driving disk 23 rotates, the driven disk 29 is rotated by magnetic force, which in turn drives the control tooth disk 25 to rotate, thereby converting the magnetic force into the elastic potential energy of the energy storage spring 28, until the elastic force on the control tooth disk 25 is equal to the magnetic force, and this state is maintained.

[0070] Friction steel balls 32 are rolled on the inner wall of the driven disk 29. The outer wall of the friction steel balls 32 is in contact with the outer wall of the driving disk 23. When the elastic force and magnetic force on the control tooth disk 25 are equal and this state is maintained, the driven disk 29 and the driving disk 23 will slide relative to each other. By setting the friction steel balls 32, the friction force is reduced, thereby reducing the heat generated by friction.

[0071] A control gear ring 26 is fixedly installed on the upper end face of the transmission ring 30, and the axes of the control gear ring 26 and the control gear disc 25 coincide.

[0072] A guide frame 27 is fixedly installed on the upper surface of the mounting bracket 7. A limit block 34 is slidably installed on the inner wall of the guide frame 27. The guide frame 27 is located between the control gear ring 26 and the control gear disk 25. When the energy storage spring 28 stores elastic potential energy, the sliding limit block 34 is inserted into the control gear ring 26. At this time, the control gear disk 25 rotates while the control gear ring 26 and the transmission ring 30 are fixed. When the energy storage spring 28 releases elastic potential energy, the sliding limit block 34 is inserted into the control gear disk 25. At this time, the control gear disk 25 is fixed while the control gear ring 26 and the transmission ring 30 rotate, driving the scraper 14 to rotate, thereby achieving the scraping and cleaning of the filter cone 15.

[0073] In a preferred embodiment of the present invention, an induction disk 6 is mounted on the upper end face of the mounting bracket 7 via an elastic element. The induction disk 6 is located inside the flow guide tube 5. When the insulating oil flows, the induction disk 6 is affected by the liquid flow and tends to slide inside the flow guide tube 5.

[0074] A sliding strip 33 is fixedly installed on the bottom surface of the induction disk 6. The sliding strip 33 passes through the guide frame 27 and the limiting block 34, and its outer wall slides against the inner wall of the guide frame 27. When the insulating oil flows inside the guide tube 5, the induction disk 6 drives the sliding strip 33 to slide downward. When the insulating oil stops flowing, the induction disk 6 is driven by the elastic force to reset the sliding strip 33.

[0075] The sliding bar 33 has a guide groove 36 on its side wall, and the inner wall of the limiting block 34 is fixedly installed with a guide pin 35 that slides with the guide groove 36. The sliding bar 33 slides up and down, and the sliding direction of the limiting block 34 is controlled by the cooperation of the guide groove 36 and the guide pin 35. When the insulating oil flows, the limiting block 34 is controlled to engage with the control tooth ring 26. When the insulating oil stops flowing, the limiting block 34 is controlled to engage with the control tooth disc 25. At this time, the energy storage spring 28 releases its elastic potential energy.

[0076] A gate 19 for sealing the sewage outlet is slidably installed on the inner wall of the guide tube 5, and the outer wall of the gate 19 is slidably attached to the inner wall of the guide tube 5.

[0077] A connecting block 21 is fixedly installed on the outer wall of the gate 19. The outer wall of the connecting block 21 is elastically connected to the inner wall of the guide cylinder 5. A spring is provided at the upper end of the connecting block 21, and the other end of the spring is connected to the inner wall of the guide cylinder 5.

[0078] A connecting rope 16 is fixedly installed on the outer wall of the induction disk 6. The other end of the connecting rope 16 is fixedly connected to the outer wall of the connecting block 21. When the insulating oil flows, the induction disk 6 slides down. At this time, the gate 19 is closed by the elastic force to prevent the slag from flowing back into the inner cavity of the guide cylinder 5 when the insulating oil flows. When the insulating oil stops flowing, the induction disk 6 slides up and pulls the gate 19 to slide through the connecting rope 16, thereby exposing the drain port so as to keep the drain port open when scraping and hitting the filter cone 15.

[0079] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on the perspective of the observer, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0080] In the description of this invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this invention.

[0081] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A three-phase differential-mode magnetic integrated inductor, characterized in that: This includes the substation section, installation section, drive components, flow guiding mechanism, and cleaning mechanism; The transformer unit includes a support base plate, a mounting cover, and a coil assembly. The coil assembly and the mounting cover are both fixedly mounted on the upper surface of the support base plate, and the coil assembly is located inside the mounting cover. The mounting part includes a mounting cylinder and a flow guide cylinder. The mounting cylinder is fixedly mounted on the upper end face of the support substrate, and the flow guide cylinder is fixedly mounted on the upper end face of the mounting cylinder. The flow guiding mechanism includes a support plate, vortex blades, and a filter cone. The support plate is rotatably disposed in the inner cavity of the mounting cylinder. The vortex blades are fixedly installed at the upper end of the support plate. The filter cone is fixedly installed in the inner cavity of the flow guiding cylinder and is an elastic structure. The rotation of the support plate is controlled by a drive assembly; The cleaning mechanism includes a scraper and an energy storage spring. The energy storage spring is used to recover the kinetic energy when the vortex blades rotate and to transfer the kinetic energy to the scraper when the vortex blades stop rotating. The scraper is used to scrape the surface of the filter cone. The drive assembly includes a drive motor, a drain cover, and a sealing plate. The sealing plate is fixedly installed in the inner cavity of the mounting cylinder. The drive motor is fixedly installed on the inner wall of the mounting cylinder, and the output shaft of the drive motor passes through the sealing plate and is fixedly connected to the bottom surface of the support plate. The drain cover is fixedly installed on the radial outer wall of the mounting cylinder, and the inner cavity of the drain cover is in communication with the inner cavity of the mounting cylinder.

2. The three-phase differential-mode magnetic integrated inductor according to claim 1, characterized in that: An installation frame is fixedly installed on the inner wall of the guide tube. A transmission ring is rotatably installed inside the installation frame. A connecting tube is fixedly installed on the axial end of the transmission ring. One end of the scraper is fixedly connected to the radial outer wall of the connecting tube. Multiple scrapers are provided, and multiple scrapers are evenly arranged in a ring along the axis of the connecting tube.

3. The three-phase differential-mode magnetic integrated inductor according to claim 2, characterized in that: The sidewall of the scraper is inclined, and an elastic strip is fixedly installed on the inner wall of the guide tube. A striking ball is fixedly installed on the other end of the elastic strip. The guide tube has a drain port on its radial inner wall and a storage box is fixedly installed on its radial outer wall. The inner cavity of the storage box is connected to the inner cavity of the guide tube through the drain port.

4. The three-phase differential-mode magnetic integrated inductor according to claim 3, characterized in that: A control gear is rotatably mounted in the middle of the transmission ring. One end of the energy storage spring is fixedly connected to the outer wall of the control gear, and the other end of the energy storage spring is fixedly connected to the inner wall of the transmission ring. The driven disc is fixedly mounted on the bottom surface of the control gear disc via a coupling.

5. The three-phase differential-mode magnetic integrated inductor according to claim 4, characterized in that: A drive shaft is fixedly installed at the center of the axial end of the vortex blade. The drive shaft passes through the filter cone and is fixedly installed with a drive disc. A control block is fixedly installed on the outer wall of the active disk, and an attraction block is fixedly installed on the outer wall of the driven disk. The control block and the attraction block attract each other through magnetic force. Friction steel balls are rolled on the inner wall of the driven disk, and the outer wall of the friction steel balls is in contact with the outer wall of the driving disk.

6. The three-phase differential-mode magnetic integrated inductor according to claim 5, characterized in that: A control gear ring is fixedly installed on the upper end face of the transmission ring; A guide frame is fixedly installed on the upper end face of the mounting bracket, and a limit block is slidably installed on the inner wall of the guide frame; The guide frame is located between the control gear ring and the control gear disc.

7. The three-phase differential-mode magnetic integrated inductor according to claim 6, characterized in that: The upper end face of the mounting bracket is fitted with a sensing disk via an elastic element, and a sliding strip is fixedly installed on the bottom surface of the sensing disk. The sliding strip passes through the guide frame and the limiting block, and its outer wall slides against the inner wall of the guide frame. The sliding bar has a guide groove on its side wall, and the inner wall of the limiting block is fixedly installed with a guide pin that slides with the guide groove.

8. The three-phase differential-mode magnetic integrated inductor according to claim 7, characterized in that: The inner wall of the guide tube is slidably fitted with a gate for sealing the sewage outlet. A connecting block is fixedly installed on the outer wall of the gate. The outer wall of the connecting block is elastically connected to the inner wall of the guide tube. A connecting rope is fixedly installed on the outer wall of the induction plate. The other end of the connecting rope is fixedly connected to the outer wall of the connecting block.

Citation Information

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