PFC inductance impregnation device and impregnation method

By designing a fully automated PFC inductive impregnation device, the problems of low impregnation efficiency and poor consistency were solved, achieving efficient and stable impregnation quality and product yield, and avoiding the formation of paint nodules.

CN122158334APending Publication Date: 2026-06-05SHENZHEN YINLI ELECTRIC APPLIANCES MFG

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHENZHEN YINLI ELECTRIC APPLIANCES MFG
Filing Date
2026-04-14
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

In the existing technology, the impregnation efficiency of PFC inductors is low, the product consistency is poor, the semi-automatic impregnation equipment has limited functions and lacks effective means of paint removal and extrusion, resulting in the failure to fundamentally solve the problem of paint nodules.

Method used

A PFC inductor impregnation device was designed, including a feeding mechanism, an impregnation container, a varnish draining container, a varnish removal mechanism, and a transfer mechanism. The device achieves fully automated operation from feeding to unloading. The insulating varnish is completely immersed in the impregnation container by the transfer mechanism, and the residual insulating varnish is removed by the varnish removal mechanism after the varnish draining is allowed to stand.

Benefits of technology

The entire process of PFC inductor production has been automated, which has improved production efficiency and consistency of impregnation quality, reduced manual intervention and operational difficulty, prevented the formation of paint nodules, and improved product yield and appearance quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to PFC inductance processing technical field, and a kind of PFC inductance dip paint device and dip paint method, including machine body, feeding mechanism, dip paint container, draining paint container, paint removal mechanism, discharging mechanism and transfer mechanism, transfer mechanism is used to first move and carry PFC inductance at first preset position to dip paint container, make the coil of PFC inductance completely immerse in insulating paint, complete dip paint, subsequently move and carry PFC inductance of completing dip paint to draining paint container and carry out stationary draining paint, after stationary draining paint of completing PFC inductance, make paint removal mechanism and the coil surface of PFC inductance contact to remove residual insulating paint with paint removal mechanism, finally move and carry PFC inductance of completing paint removal to second preset position.Using above technical scheme, realize the full-process automation operation of PFC inductance from feeding, dip paint, draining paint, paint removal to discharging, solve the problems, such as low efficiency of manual dip paint, poor product consistency in prior art and single function of existing semi-automatic dip paint equipment, poor draining paint effect.
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Description

Technical Field

[0001] This invention relates to the field of PFC inductor processing technology, specifically to a PFC inductor impregnation apparatus and impregnation method. Background Technology

[0002] PFC inductors are key components in power factor correction circuits. Their coils require impregnation during manufacturing to uniformly coat the coil surface with an insulating varnish, thereby improving the inductor's electrical insulation performance, moisture resistance, and mechanical strength.

[0003] Currently, the impregnation process for PFC inductors is mostly done manually in its early stages. Operators hold the inductor and immerse the coil portion in the insulating varnish, leave it for a period of time, then remove it and allow it to air dry in a designated area. However, manual impregnation is inefficient and cannot meet the needs of large-scale production. Furthermore, the immersion depth and dwell time rely entirely on operator experience, making it difficult to control the thickness and uniformity of the insulating varnish coating, resulting in poor product consistency. In addition, the lack of effective draining treatment after impregnation allows excess insulating varnish to accumulate on the coil surface, forming varnish nodules at the bottom of the coil. This not only affects the product's appearance but may also interfere with subsequent assembly.

[0004] To address the aforementioned issues, some semi-automatic impregnation equipment has emerged in the existing technology. This type of equipment typically uses clamps to hold multiple inductors and a lifting mechanism to drive the clamps up and down to complete the impregnation process, thus improving production efficiency to some extent. However, existing semi-automatic impregnation equipment has relatively limited functionality, usually only providing impregnation and lacking an effective varnish removal station. Although the inductors can be briefly left to dry after impregnation, it is still difficult to completely remove excess insulating varnish from the coil surface, and the varnish nodule problem remains unresolved. Summary of the Invention

[0005] The purpose of this application is to provide a PFC inductive impregnation device and impregnation method to solve the problems of low efficiency and poor product consistency of manual impregnation in the prior art, as well as the single function and poor paint removal effect of existing semi-automatic impregnation equipment.

[0006] The first aspect of the present invention provides a PFC inductor impregnation device, the technical solution of which is: a PFC inductor impregnation device, comprising a body, a feeding mechanism, an impregnation container, a paint draining container, a paint removal mechanism, a discharging mechanism, and a transfer mechanism, wherein the body is provided with a feeding station, a discharging station, a first preset position, and a second preset position. The feeding mechanism is used to transport the PFC inductor from the feeding station to the first preset position; The varnish-impregnating container is located on one side of the first preset position, and the contents of the varnish-impregnating container are filled with insulating varnish. The varnish-dip container is located on one side of the varnish-immersion container and is used for the PFC inductor to be left to settle and drip varnish. The varnish removal mechanism is located on the side of the varnish-removing container away from the varnish-immersing container, and is used to contact the PFC inductor and remove the residual insulating varnish on the coil surface of the PFC inductor. The transfer mechanism is used to first transfer the PFC inductor at the first preset position to the impregnation container, so that the coil of the PFC inductor is completely immersed in the insulating varnish to complete the impregnation. Then, the impregnated PFC inductor is transferred to the varnish draining container for static varnish draining. After that, the static varnish draining PFC inductor is transferred to the varnish removal mechanism, so that the varnish removal mechanism contacts the coil surface of the PFC inductor to remove residual insulating varnish. Finally, the varnish-removed PFC inductor is transferred to the second preset position. The unloading mechanism is used to receive the PFC inductor transferred by the transfer mechanism at the second preset position, and to transport the received PFC inductor from the second preset position to the unloading station.

[0007] A second aspect of the present invention provides a PFC inductor impregnation method, based on the PFC inductor impregnation apparatus described above, comprising the following steps: The PFC inductor is transported from the loading station to the first preset position by the loading mechanism to complete the loading. The PFC inductor at the first preset position is transferred to the impregnation container by the transfer mechanism, and the coil of the PFC inductor is completely immersed in the insulating varnish in the impregnation container. The PFC inductor that has been impregnated with varnish is transferred to the varnish-reducing container by the transfer mechanism, so that the PFC inductor can be left to stand and devarnish on the varnish-reducing container. The PFC inductor that has completed the varnishing process is transferred to the varnish removal mechanism by the transfer mechanism. The varnish removal mechanism then contacts the coil surface of the PFC inductor to remove any residual insulating varnish. The PFC inductor that has undergone paint removal is transferred to the unloading mechanism at the second preset position by the transfer mechanism. The unloading mechanism then transports the PFC inductor from the second preset position to the unloading station to complete the unloading process.

[0008] After adopting the above technical solution, the beneficial effects of the present invention are as follows: This application provides a PFC inductor impregnation device, including a feeding mechanism, an impregnation container, a varnish draining container, a varnish removal mechanism, a discharge mechanism, and a transfer mechanism. During operation, the feeding mechanism first transports the PFC inductor to a first preset position. The transfer mechanism then transfers the PFC inductor to the impregnation container so that the coil is completely immersed in the insulating varnish, completing the impregnation. Subsequently, the PFC inductor is transferred to the varnish draining container for static varnish draining. After that, the PFC inductor is transferred to the varnish removal mechanism, where it contacts the coil surface to further remove residual insulating varnish. Finally, the PFC inductor is transferred to the discharge mechanism at a second preset position, realizing fully automated operation of the PFC inductor from feeding, impregnation, varnish draining, varnish removal to discharge. This invention solves the problems of low efficiency in manual varnish impregnation, difficulty in controlling coating uniformity due to reliance on operator experience for varnish depth and dwell time, and technical challenges in existing semi-automatic varnish impregnation equipment which only has varnish impregnation function and lacks effective varnish removal and draining methods, resulting in excess insulating varnish accumulating at the bottom of the coil to form varnish nodules and residual varnish affecting product appearance and electrical performance. While improving production efficiency, it ensures the consistency and stability of varnish impregnation quality, improves product yield and appearance quality, and reduces manual intervention and operational difficulty. Attached Figure Description

[0009] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0010] Figure 1 This is a schematic diagram of the overall structure of this embodiment; Figure 2 These are illustrations of the PFC inductor in its initial and inverted states in this embodiment. Figure 3 This is a diagram illustrating the transfer mechanism in this embodiment; Figure 4 This is another perspective view of the transfer mechanism in this embodiment; Figure 5 This is a schematic diagram illustrating the cooperation relationship between the transfer lifting frame, the carrier, the PFC inductor, the first gripper, the second gripper, and the transfer cylinder in this embodiment; Figure 6 This is a schematic diagram illustrating the cooperation relationship between the feeding mechanism, unloading mechanism, immersion container, paint draining container, and paint removal mechanism in this embodiment; Figure 7 This is a diagram illustrating the feeding and unloading mechanisms in this embodiment; Figure 8This is a schematic diagram illustrating the cooperation relationship between the paint dipping container, the paint extrusion container, and the paint removal mechanism in this embodiment; Figure 9 This is a schematic diagram illustrating the cooperative relationship between the paint extrusion container, the first paint extrusion station, the second paint extrusion station, the third paint extrusion station, and the carrier pushing component in this embodiment; Figure 10 This is a diagram illustrating the paint removal mechanism in this embodiment; Figure 11 This is a flowchart of the PFC inductor impregnation method provided in this embodiment.

[0011] Explanation of reference numerals in the attached drawings: 100, machine body; 101, loading station; 102, unloading station; 103, first preset position; 104, second preset position; 10, loading mechanism; 11, loading / unloading guide rail; 12, loading / unloading slider; 13, loading / unloading motor; 14, synchronous belt; 15, coupling; 16, connecting block; 20, immersion container; 30, paint drain container; 31, first paint drain station; 32, second paint drain station; 33, intermediate... Paint removal station; 34. Carrier pushing assembly; 341. Push plate; 342. Carrier pushing cylinder; 40. Paint removal mechanism; 41. Paint removal fixing frame; 411. Paint removal area; 42. Paper roll; 421. Paint removal paper; 43. Paper roll; 44. Paint removal drive; 45. Paint collection container; 50. Unloading mechanism; 60. Transfer mechanism; 61. Transfer gripper; 611. Transfer cylinder; 612. First gripper; 613. Second gripper; 6 2. Horizontal moving assembly; 621. Horizontal slide rail; 622. Horizontal slider; 623. Driving gear; 624. Driven gear; 625. Transmission belt; 626. Connecting seat; 627. Horizontal motor; 63. Vertical lifting assembly; 631. Vertical slide rail; 632. Vertical slider; 633. Lifting screw; 634. Lifting nut seat; 635. Lifting motor; 64. Rotating assembly; 641. Rotating shaft; 642. Rotating motor; 643, First transmission component; 6431, First gear a; 6432, First gear b; 6433, First transmission belt; 644, Second transmission component; 6441, Connecting shaft; 6442, Second gear a; 6443, Second gear b; 6444, Second transmission belt; 65, Transfer fixing frame; 66, Transfer moving frame; 67, Transfer lifting frame; 70, Carrier; 71, Roller; 72, Abutment column; 200, PFC inductor. Detailed Implementation

[0012] The following will refer to the appendices in the embodiments of the present invention. Figures 1-11The technical solutions in the embodiments of the present invention are clearly and completely described herein. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0013] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0014] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, if the word "and / or" appears throughout the text, it means including three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0015] This embodiment provides a PFC inductor impregnation apparatus, referring to... Figures 1-11 It includes a body 100, a feeding mechanism 10, a paint dipping container 20, a paint extrusion container 30, a paint removal mechanism 40, a discharging mechanism 50, and a transfer mechanism 60. The body 100 is provided with a feeding station 101, a discharging station 102, a first preset position 103, and a second preset position 104. The feeding mechanism 10 is used to transport the PFC inductor 200 from the feeding station 101 to the first preset position 103; The varnish-impregnating container 20 is located on one side of the first preset position 103, and the contents of the varnish-impregnating container 20 are filled with insulating varnish. The varnish-reducing container 30 is located on one side of the varnish-immersion container 20 and is integrally formed with the varnish-immersion container 20. It is used to allow the PFC inductor 200 to stand and be coated with varnish. The varnish removal mechanism 40 is located on the side of the varnish-removing container 30 away from the varnish-immersing container 20, and is used to contact the PFC inductor 200 and remove the residual insulating varnish on the coil surface of the PFC inductor 200. The transfer mechanism 60 is used to first transfer the PFC inductor 200 at the first preset position 103 to the impregnation container 20, so that the coil of the PFC inductor 200 is completely immersed in the insulating varnish to complete the impregnation. Then, the impregnated PFC inductor 200 is transferred to the varnish draining container 30 for static varnish draining. After that, the static varnish draining PFC inductor 200 is transferred to the varnish removal mechanism 40, so that the varnish removal mechanism 40 contacts the coil surface of the PFC inductor 200 to remove residual insulating varnish. Finally, the varnish-removed PFC inductor 200 is transferred to the second preset position 104. The unloading mechanism 50 is used to receive the PFC inductor 200 transferred by the transfer mechanism 60 at the second preset position 104, and to transport the received PFC inductor 200 from the second preset position 104 to the unloading station 102.

[0016] Understandably, during operation, the feeding mechanism 10 transports the PFC inductor 200 to be processed from the feeding station 101 to the first preset position 103. The transfer mechanism 60 transfers the PFC inductor 200 from the first preset position 103 to the impregnation container 20, so that the coil of the PFC inductor 200 is completely immersed in the insulating varnish, completing the impregnation. Subsequently, the transfer mechanism 60 transfers the impregnated PFC inductor 200 to the varnish-removing container 30 for static varnish removal. After the varnishing is completed, the transfer mechanism 60 transfers the PFC inductor 200 to the varnish removal mechanism 40, so that the varnish removal mechanism 40 contacts the coil surface of the PFC inductor 200 to remove the residual insulating varnish on the coil surface; finally, the transfer mechanism 60 transfers the varnish-removed PFC inductor 200 to the second preset position 104, where it is received by the unloading mechanism 50 and transported from the second preset position 104 to the unloading station 102, completing the entire varnishing operation. Through the above process, the PFC inductor 200 achieves fully automated operation from feeding, impregnation, varnish removal, and unloading. This solves the problems of low efficiency in manual impregnation, difficulty in controlling coating uniformity due to reliance on operational experience for impregnation depth and dwell time, and the technical challenges of existing semi-automatic impregnation equipment that only has impregnation function but lacks effective varnish removal and draining methods, resulting in excess insulating varnish accumulating at the bottom of the coil to form varnish nodules and residual varnish affecting product appearance and electrical performance. While improving production efficiency, this process ensures the consistency and stability of impregnation quality, improves product yield and appearance quality, and reduces manual intervention and operational difficulty.

[0017] Furthermore, referring to Figure 2 The PFC inductor impregnation apparatus provided in this embodiment also includes a carrier 70, which is used to simultaneously load multiple PFC inductors 200. During operation, the transfer mechanism 60 sequentially transfers the carrier 70 at the first preset position 103 and the multiple PFC inductors 200 on the carrier 70 to the immersion container 20 for immersion, to the paint drain container 30 for paint draining, to the paint removal mechanism 40 for paint removal, and then transfers the carrier 70 to the unloading mechanism 50 at the second preset position 104.

[0018] Understandably, during operation, the transfer mechanism 60 treats the carrier 70 at the first preset position 103 and the multiple PFC inductors 200 on the carrier 70 as a whole, sequentially transferring them to the immersion container 20 for immersion, to the paint drain container 30 for paint draining, to the paint removal mechanism 40 for paint removal, and then transferring the carrier 70 to the unloading mechanism 50 at the second preset position 104. This enables batch processing, significantly increasing the capacity of a single operation and improving production efficiency. At the same time, because the multiple PFC inductors 200 on the carrier 70 maintain the same posture and movement trajectory during immersion, paint draining, and paint removal, the consistency of processing conditions for the same batch of products is ensured, avoiding process differences caused by processing each one individually, and further improving product consistency and yield.

[0019] Furthermore, referring to Figure 1 , Figure 2 and Figure 3 The transfer mechanism 60 includes a transfer gripper 61 for the carrier 70, a horizontal moving component 62, a vertical lifting component 63, and a rotating component 64. The horizontal moving component 62 is used to drive the transfer gripper 61 to move horizontally, so that the transfer gripper 61 can move back and forth between the first preset position 103, the paint dipping container 20, the paint exfoliating container 30, the paint removal mechanism 40, and the second preset position 104. The vertical lifting component 63 is used to drive the transfer gripper 61 to rise and fall vertically. The PFC inductor 200 has an initial state for easy transport and an inverted state for easy impregnation, degreasing and devarnishing operations. The rotating assembly 64 is used to drive the transfer gripper 61 to rotate so as to drive the carrier 70 to rotate, so that the PFC inductor 200 can switch between the initial state and the inverted state.

[0020] Understandably, the transfer mechanism 60 grips the carrier 70 with the transfer gripper 61 and uses the horizontal moving component 62 to drive the transfer gripper 61 to move horizontally, so that the PFC inductor 200 on the carrier 70 can be transferred between the first preset position 103, the immersion container 20, the paint drain container 30, the paint removal mechanism 40, and the second preset position 104. At the same time, the vertical lifting component 63 drives the transfer gripper 61 to rise and fall vertically to accommodate the PFC inductor 200 during immersion, during paint drain, and during paint removal. During this process, the PFC inductor 200 has an initial state that facilitates transport and an inverted state that facilitates impregnation, degreasing, and devarnishing operations. The rotating assembly 64 drives the transfer gripper 61 to rotate, thereby rotating the carrier 70 and switching the PFC inductor 200 between the initial and inverted states: when the PFC inductor 200 is transported between the loading station 101 and the unloading station 102, the initial state is maintained to ensure smooth movement on the conveyor line; when the PFC inductor 200 is transferred to the impregnation container 20, the degreasing container 30, and the devarnishing mechanism 40, the rotating assembly 64 switches it to the inverted state, so that the coil faces downward, thereby facilitating impregnation, degreasing, and devarnishing operations on the PFC coil. That is, during the impregnation process, the coil can be completely immersed in the insulating varnish to ensure the quality of the impregnation. During the varnish removal process, the excess insulating varnish on the coil drips off naturally under the action of gravity to ensure the varnish removal effect. During the varnish removal process, the varnish removal mechanism 40 can perform contact varnish removal on the coil to further remove the residual insulating varnish on the surface of the coil.

[0021] Furthermore, the transfer mechanism 60 also includes a transfer fixing frame 65 disposed on the body 100, a transfer moving frame 66 disposed on the transfer fixing frame 65, and a transfer lifting frame 67 disposed on the transfer moving frame 66; The horizontal moving component 62 is mounted on the transfer fixing frame 65 and drives the transfer moving frame 66 to slide in the horizontal direction. The vertical lifting component 63 is mounted on the transfer moving frame 66 and drives the transfer lifting frame 67 to rise and fall in the vertical direction. The rotating component 64 is mounted on the transfer lifting frame 67. The transfer gripper 61 is mounted on the transfer lifting frame 67 and is driven to rotate by the rotating component 64.

[0022] Understandably, during operation, the horizontal moving component 62 drives the transfer moving frame 66 to move horizontally relative to the transfer fixed frame 65, thereby enabling the transfer gripper 61 to move between the first preset position 103, the varnish-dipping container 20, the varnish-extracting container 30, the paint-removing mechanism 40, and the second preset position 104. This allows the PFC inductor 200 to be transferred between these positions for operations such as loading, varnishing, varnish-extracting, paint-removing, and unloading. The vertical lifting component 63 drives the transfer lifting frame 67 to move vertically relative to the transfer moving frame 66, allowing the transfer gripper 61 to adjust its height to meet the height requirements of the PFC inductor 200 during different operations such as varnishing, varnish-extracting, and paint-removing. The rotating component 64 drives the transfer gripper 61 to rotate, allowing the PFC inductor 200 to flexibly switch between its initial and inverted states.

[0023] In actual operation, after the transfer gripper 61 grips the carrier 70 at the first preset position 103, the rotating component 64 drives the carrier 70 to rotate 180°, causing the PFC inductor 200 to switch from its initial state to an inverted state. Subsequently, the horizontal moving component 62 drives the transfer moving frame 66 to move the transfer gripper 61 above the impregnation container 20. At this time, the vertical lifting component 63 drives the transfer lifting frame 67 to descend, immersing the coil of the PFC inductor 200 into the insulating varnish in the impregnation container 20. After impregnation is completed, the vertical lifting component 63 drives the transfer lifting frame 67 to rise, and the horizontal moving component 62 then drives the transfer moving frame 66 to move the transfer gripper 61 onto the varnish-applying container 30, placing the PFC inductor 200 on the varnish-applying container 30 for static varnish application. After the varnish removal is completed, the carrier 70 is gripped by the transfer gripper 61. The horizontal moving component 62 drives the transfer frame 66 to move the transfer gripper 61 to the varnish removal mechanism 40. At this time, the PFC inductor 200 is still in an inverted state. The vertical lifting component 63 drives the transfer gripper 61 to descend, so that the bottom of the coil of the PFC inductor 200 contacts the varnish removal mechanism 40, thereby removing the residual insulating varnish on the coil of the PFC inductor 200. After the varnish removal is completed, the vertical lifting component 63 drives the transfer frame 67 to rise, causing the transfer gripper 61 to rise. At this time, the rotating component 64 drives the transfer gripper 61 to rotate and reset, so that the PFC inductor 200 switches from the inverted state to the initial state. Then, the horizontal moving component 62 drives the transfer frame 66 to move the transfer gripper 61 to the second preset position 104. The unloading mechanism 50 receives the carrier 70 and the PFC inductor 200 on the carrier 70 and transports them to the unloading station 102.

[0024] Furthermore, referring to Figure 2 and Figure 4The horizontal moving component 62 includes two horizontal slide rails 621 symmetrically arranged on both sides of the transfer fixing frame 65, two horizontal sliders 622 arranged at the bottom of the transfer moving frame 66 and corresponding to the two horizontal slide rails 621, and a horizontal driving structure for driving the transfer moving frame 66 to move along the horizontal slide rails 621.

[0025] In this embodiment, the horizontal drive structure is a belt and gear transmission module, which includes a drive gear 623 and a driven gear 624 rotatably disposed on one side of the transfer frame 65, a transmission belt 625 wound between the drive gear 623 and the driven gear 624, a connecting seat 626 for connecting the transmission belt 625 and the transfer frame 66, and a horizontal motor 627 for driving the drive gear 623 to rotate. The drive gear 623 and the driven gear 624 are located at both ends of one side of the transfer frame 65 and correspond to each other along the horizontal slide rail 621. During operation, the horizontal motor 627 drives the drive gear 623 to rotate, which in turn drives the transmission belt 625 to move, thereby moving the connecting seat 626. This causes the transfer frame 66 to move horizontally relative to the transfer fixing frame 65 under the guidance of the horizontal slide rail 621 and the horizontal slider 622. This causes the transfer gripper 61 to move horizontally, enabling the transfer gripper 61 to move back and forth between the first preset position 103, the immersion container 20, the paint exfoliation container 30, the paint removal mechanism 40, and the second preset position 104, thus realizing the transfer operation of the PFC inductor 200.

[0026] Furthermore, referring to Figure 4 and Figure 5 The vertical lifting assembly 63 includes two vertical slide rails 631 symmetrically arranged on both sides of the transfer frame 66, two vertical sliders 632 arranged on both sides of the transfer lifting frame 67 and corresponding to the two vertical guide rails, and a lifting drive structure for driving the transfer lifting frame 67 to move vertically up and down along the vertical guide rails.

[0027] In this embodiment, the lifting drive structure is a screw motor transmission module, which includes a lifting screw 633 rotatably disposed between two vertical slide rails 631, a lifting nut seat 634 sleeved on the vertical screw and fixedly connected to the transfer lifting seat, and a lifting motor 635 for driving the lifting screw 633 to rotate. During operation, the lifting motor 635 drives the lifting screw 633 to rotate. Since the transfer frame 66 and the transfer lifting frame 67 are provided with vertical slide rails 631 and vertical sliders 632, when the lifting screw 633 rotates, it causes the lifting nut seat 634 to move up and down along the length of the lifting screw 633, thereby causing the transfer lifting frame 67 to vertically lift relative to the transfer frame 66, and further causing the transfer gripper 61 to vertically lift, adapting to the immersion during varnishing of the PFC inductor 200, the lifting during paint removal, and the height adjustment during paint removal.

[0028] Furthermore, referring toFigure 4 and Figure 5 In this embodiment, there are two sets of transfer grippers 61. The two sets of transfer grippers 61 are symmetrically arranged on both sides of the transfer lifting frame 67. The two sets of transfer grippers 61 are used to grip both ends of the carrier 70. The transfer gripper 61 includes a transfer cylinder 611 and a first gripper 612 and a second gripper 613 disposed on the transfer cylinder 611. The transfer cylinder 611 is used to drive the first gripper 612 and the second gripper 613 to move toward each other or away from each other, so as to realize the gripping and release of the carrier 70.

[0029] The rotating assembly 64 includes a rotating shaft 641 rotatably mounted on the transfer lifting frame 67, a rotating motor 642, a first transmission member 643 for connecting the rotating shaft 641 and the rotating motor 642, and a second transmission member 644 for connecting the rotating shaft 641 and the transfer gripper 61. The first transmission member 643 includes a first gear a 6431 sleeved on the output shaft of the rotating motor 642, a first gear b 6432 sleeved on the rotating shaft 641, and a first transmission belt wound around the first gear a 6431 and the first gear b 6432.

[0030] There are two sets of second transmission components 644. The two sets of second transmission components 644 are symmetrically arranged at both ends of the rotating shaft 641 and are used to connect a set of transfer grippers 61 respectively. The second transmission component 644 includes a connecting shaft 6441 rotatably mounted on the transfer lifting frame 67 and fixedly connected at one end to the transfer gripper 61, a second gear a 6442 sleeved on the other end of the connecting shaft 6441, a second gear b 6443 sleeved on the end of the rotating shaft 641, and a second transmission belt 6444 for winding between the second gear a 6442 and the second gear b 6443.

[0031] When the transfer gripper 61 grips the carrier 70 and the attitude of the PFC inductor 200 needs to be switched, the rotary motor 642 drives the rotary shaft 641 to rotate, which in turn drives the second gear b6443 at both ends of the rotary shaft 641 to rotate. This rotation is achieved by the second transmission belt 6444 and the second gear a6442, thereby driving the connecting shaft 6441 and the transfer gripper 61 to rotate. This, in turn, drives the carrier 70 and the PFC inductor 200 on the carrier 70 to rotate, enabling the PFC inductor 200 to switch from the initial attitude to the inverted attitude or from the inverted attitude to the initial attitude.

[0032] Furthermore, referring to Figure 6 and Figure 7The loading mechanism 10 and unloading mechanism 50 have the same structure. Both are linear motor modules. In this embodiment, the linear motor module includes loading and unloading guide rails 11, loading and unloading sliders 12, loading and unloading motors 13, and loading and unloading transmission structure. The carrier 70 is detachably mounted on the loading and unloading sliders 12. The loading and unloading transmission structure includes a synchronous belt 14, a coupling 15, and a connecting block 16. The connecting block 16 is fixedly connected to the loading and unloading sliders 12. During operation, the loading and unloading motor 13 drives the synchronous belt 14 to rotate through the coupling 15, which in turn drives the connecting block 16 and the loading and unloading sliders 12 to move linearly along the loading and unloading guide rails 11.

[0033] In other embodiments, the loading mechanism 10 and the unloading mechanism 50 can also be configured as other suitable conveying structures, such as chain drive mechanism, roller conveying mechanism, etc., as long as they can realize the function of conveying the carrier 70 and PFC inductor 200 from the loading station 101 to the first preset position 103, and conveying the carrier 70 and PFC inductor 200 that have completed the dipping operation from the second preset position 104 to the unloading station 102.

[0034] Furthermore, referring to Figure 8 and Figure 9 The paint-dip container 30 is provided with a first paint-dip station 31 near the paint-immersion container 20, a second paint-dip station 32 near the paint removal mechanism 40, and at least one intermediate paint-dip station 33 located between the first paint-dip station 31 and the second paint-dip station 32. The first paint-dip station 31, the second paint-dip station 32 and the intermediate paint-dip station 33 can all be used to place the carrier 70 so that the PFC inductor 200 on the carrier 70 can be left to rest and be painted.

[0035] Furthermore, the paint coating container 30 is provided with a carrier pushing component 34, which is used to push the carrier 70 on the first paint coating station 31 and the multiple PFC inductors 200 on the carrier 70 to the intermediate paint coating station 33 and the second paint coating station 32 in sequence, so as to perform step-by-step paint coating on the PFC inductors 200 on the carrier 70.

[0036] In this embodiment, there are two intermediate paint application stations 33, meaning that the carrier 70 carrying the PFC needs to pass through two intermediate paint application stations 33 before it can be pushed to the second paint application station 32. In other embodiments, the intermediate paint application stations 33 can also be set to one or three or other quantities, which can be adjusted according to the actual situation, and will not be elaborated here.

[0037] It should be noted that during the paint application process, the transfer mechanism 60 places the carrier 70, which carries the PFC inductor 200 that has completed the paint impregnation, on the first paint application station 31 for preliminary paint application. After the PFC carrier 70 has completed the static paint application on the second paint application station 32 or the intermediate paint application station 33, the transfer mechanism 60 clamps the carrier 70 and the PFC inductor 200 it carries at the second paint application station 32 and transfers it to the paint removal mechanism 40 for paint removal.

[0038] During operation, the transfer mechanism 60 places the carrier 70 and multiple PFC inductors 200 that have completed impregnation on the carrier 70 into the first impregnation station 31 of the impregnation container 30. Then, the carrier pushing component 34 pushes the carrier 70 from the first impregnation station 31 to the intermediate impregnation station 33, allowing the carrier 70 to continue undergoing static impregnation at the intermediate station 33. At this time, the first impregnation station 31 becomes vacant, and the transfer mechanism 60 can place the next impregnated carrier 70 into the first impregnation station 31 for subsequent loading. After the carrier 70 is placed at the first paint-applying station 31, the carrier pushing component 34 activates again, pushing the carrier 70 from the first paint-applying station 31 to the intermediate paint-applying station 33. As the carrier 70 moves from the first paint-applying station 31 to the intermediate paint-applying station 33, it pushes the carrier 70 from the intermediate station 33 to the second paint-applying station 32. This cycle repeats, achieving the step-by-step pushing of the carrier 70 and the step-by-step paint-applying of the PFC inductor 200, thus automating the paint-applying process. By pushing the carrier 70 step-by-step, each carrier 70 passes sequentially through the first paint-applying station 31, the intermediate paint-applying station 33, and the second paint-applying station 32 on the paint-applying container 30, ensuring that each carrier 70 receives the same paint-applying time. This solves the problem of product quality differences caused by inconsistent paint-applying times and further improves product consistency. Meanwhile, the carrier pushing component 34 eliminates the need for the paint application process to occupy the transfer mechanism 60 for multiple pick-up and drop operations. After the transfer mechanism 60 completes the placement of the carrier 70, it can continue to perform other tasks, realizing the parallel operation of the paint application process with the preceding and following processes, effectively improving the overall production cycle time and operating efficiency.

[0039] Furthermore, there are two sets of carrier pushing components 34, which are symmetrically arranged on both sides of the paint asphalt container 30. The two sets of carrier pushing components 34 drive the two ends of the carrier 70 located on the first paint asphalt station 31 to move synchronously towards the middle paint asphalt station 33.

[0040] Specifically, the vehicle pushing assembly 34 includes a push plate 341 slidably disposed between the first paint application station 31 and the intermediate paint application station 33, and a vehicle pushing cylinder 342 for driving the push plate 341 to move back and forth between the first paint application station 31 and the intermediate paint application station 33.

[0041] Understandably, through the cooperation of the push plate 341 and the carrier push cylinder 342, the carrier 70 is automatically pushed between the first paint application station 31, the second paint application station 32 and the intermediate paint application station 33. The structure is compact, the cost is low and the maintenance is convenient. While realizing the automation of the paint application process, it reduces the manufacturing cost and the failure rate of the equipment.

[0042] Furthermore, to ensure stable movement of the carrier 70 on the paint asphalt container 30, rollers 71 are provided at the bottom of the carrier 70, and abutment posts 72 are provided on the side walls of the carrier 70 for engaging with the push plate 341. During operation, the carrier push cylinder 342 drives the carrier. Furthermore, referring to Figure 8 and Figure 10 The paint removal mechanism 40 includes a paint removal frame 41, a paper feed roll 42 and a paper take-up roll 43 rotatably mounted on the paint removal frame 41, and a paint removal drive 44. The paint removal frame 41 is provided with a paint removal area 411. The paper feed roll 42 is used to release paint removal paper 421. The paint removal paper 421 released by the paper feed roll 42 passes through the paint removal area 411 and is wound onto the paper take-up roll 43. The paint removal drive 44 is used to drive the paper take-up roll 43 to rotate intermittently, so that the paper take-up roll 43 can roll up the used paint removal paper 421 in the paint removal area 411. At the same time, the paper feed roll 42 releases new paint removal paper 421 to refresh the paint removal paper 421 in the paint removal area 411.

[0043] In this embodiment, the varnish-removing paper 421 is industrial filter paper, and the varnish-removing drive 44 includes a varnish-removing motor. During operation, the transfer mechanism 60 transfers the PFC inductor 200, which has completed varnish removal, to the varnish-removing area 411 on the varnish-removing fixture 41, so that the coil surface of the PFC inductor 200 comes into contact with the varnish-removing paper 421. The varnish-removing paper 421 removes the residual insulating varnish from the coil surface by adsorption and wiping. After the varnish-removing paper 421 in the varnish-removing area 411 has been used a certain number of times, the varnish-removing drive 44 drives the take-up drum 43 to rotate intermittently, so that the take-up drum 43 winds up the used varnish-removing paper 421 in the varnish-removing area 411, while the unloading drum 42 releases new varnish-removing paper 421 to refresh the varnish-removing paper 421 in the varnish-removing area 411, ensuring that the paper surface in contact with the coil surface is clean each time varnish is removed. It avoids secondary pollution or incomplete paint removal caused by using contaminated paper surfaces, and can achieve long-term continuous operation without manual intervention. While ensuring paint removal quality, it further reduces the frequency of manual maintenance and the difficulty of operation, and improves the automation level and operational stability of the equipment.

[0044] Furthermore, a paint collection container 45 is provided between the paint removal mechanism 40 and the paint impregnation container 20. The paint collection container 45 is used to collect the insulating paint that drips from the PFC inductor 200 during its movement.

[0045] Understandably, by setting up the varnish collection container 45, the problem of insulating varnish dripping from the PFC inductor 200 during transfer, contaminating the machine body 100, work surface, and ground environment, is effectively solved. This avoids the difficulty of cleaning up the dripped varnish after it hardens on the equipment surface, reducing the difficulty and frequency of equipment maintenance. At the same time, the varnish collection container 45 collects the dripped insulating varnish, facilitating subsequent unified processing or recycling, reducing varnish waste and environmental pollution.

[0046] In addition, a varnish collection container 45 is also provided on the side of the varnish-impregnating container 20 near the first preset position 103. The varnish collection container 45 is used to collect the insulating varnish that is thrown off or dripped from the PFC inductor 200 during the rotating varnish-spreading process.

[0047] It should be noted that after the transfer mechanism 60 removes the impregnated carrier 70 and the multiple PFC inductors 200 on the carrier 70 from the impregnation container 20, a rotational varnishing operation is required to ensure that the insulating varnish adheres more evenly to the coil surface. In this embodiment, a complete rotational varnishing operation includes: the rotating component 64 first drives the carrier 70 to rotate 90° clockwise, then drives the carrier 70 to rotate 180° counterclockwise, and finally drives the carrier 70 to rotate 90° clockwise, thereby making the insulating varnish on the coil surface of the PFC inductors 200 more evenly distributed under the action of centrifugal force and gravity. In actual operation, at least one rotational varnishing operation is required. The number of rotational varnishing operations can be increased or decreased according to the actual situation, and the rotation angle of the carrier 70 is not limited to the above angle, but can be adjusted accordingly based on the actual situation.

[0048] During the rotating varnishing process, the insulating varnish on the coil surface will be flung off or dripped between the first preset position 103 and the varnish-impregnating container 20. Therefore, a varnish-collecting container 45 is also provided near the first preset position 103 in the varnish-impregnating container 20 to effectively collect the insulating varnish flung off or dripped during the rotating varnishing operation, thereby preventing the insulating varnish from polluting the surrounding environment. In this way, whether it is the varnish dripping from the PFC inductor 200 during the transfer process or the varnish flung off or dripped during the rotating varnishing process, it can be collected by the corresponding varnish-collecting container 45, protecting the cleanliness of the equipment and the working environment in all aspects.

[0049] Furthermore, referring to Figure 11 This embodiment also provides a method for impregnating a PFC inductor, which is based on the PFC inductor impregnation apparatus described above, and includes the following steps: 101. The PFC inductor 200 is conveyed from the loading station 101 to the first preset position 103 by the loading mechanism 10 to complete the loading. 102. The PFC inductor 200 at the first preset position 103 is transferred to the impregnation container 20 by the transfer mechanism 60, and the coil of the PFC inductor 200 is completely immersed in the insulating varnish in the impregnation container 20. 103. The PFC inductor 200 that has completed impregnation is transferred to the paint-draining container 30 by the transfer mechanism 60, so that the PFC inductor 200 can be left to stand and drain on the paint-draining container 30. 104. The PFC inductor 200 that has completed the varnishing process is transferred to the varnish removal mechanism 40 via the transfer mechanism 60. The varnish removal mechanism 40 contacts the coil surface of the PFC inductor 200 to remove the residual insulating varnish. 105. The PFC inductor 200 after paint removal is transferred to the unloading mechanism 50 at the second preset position 104 by the transfer mechanism 60. The unloading mechanism 50 then transports the PFC inductor 200 from the second preset position 104 to the unloading station 102 to complete the unloading.

[0050] Specifically, since the PFC inductor impregnation device also includes a carrier 70, on which multiple PFC inductors 200 are fixedly supported, the transfer gripper 61 of the transfer mechanism 60 realizes the operation of loading, impregnation, degreasing, paint removal and unloading of the PFC inductors 200 by transferring the carrier 70.

[0051] Step 101 specifically includes: Step 1011: The carrier 70, which is fixedly carrying multiple PFC inductors 200, is transferred to the loading mechanism 10 located on the loading station 101 of the machine body 100 by an external transfer mechanism such as a robotic arm. Step 1012: The loading mechanism 10 transports the carrier 70 located at the loading station 101 and the multiple PFC inductors 200 on the carrier 70 to the first preset position 103 to complete the loading.

[0052] In this embodiment, the feeding mechanism 10 is specifically an electric linear module to accurately transport the carrier 70 to the first preset position 103, thereby ensuring that the subsequent transfer mechanism 60 can smoothly clamp the carrier 70.

[0053] Step 102 specifically includes: 1021. The carrier 70 carrying the PFC inductor 200 at the first preset position 103 is transferred and clamped by the transfer mechanism 60. The rotating component 64 of the transfer mechanism 60 drives the carrier 70 to rotate, so that the PFC inductor 200 on the carrier 70 is switched from the initial state to the inverted state. 1022. The carrier 70 is transferred to the impregnation container 20 by the transfer mechanism 60, so that the coil of the inverted PFC inductor 200 on the carrier 70 is completely immersed in the impregnation liquid in the impregnation container 20, thus completing the impregnation.

[0054] In this embodiment, the feeding and impregnation processes are continuous. During impregnation, the transfer gripper 61 of the transfer mechanism 60 does not place the carrier 70 onto the impregnation container 20. Instead, the transfer mechanism 60 grips the carrier 70 and slowly lowers it until the coils of the multiple inverted PFC inductors 200 on the carrier 70 are completely immersed in the insulating varnish. Furthermore, during impregnation, the impregnation time can be controlled according to the specifications of the PFC inductors 200 and the characteristics of the varnish to ensure that the insulating varnish fully adheres to the coil surface.

[0055] Step 103 includes: 1031. The transfer mechanism 60 clamps the carrier 70 and the PFC inductor 200 that has been dipped in paint on the carrier 70 and raises it to a preset height. The rotating component 64 of the transfer mechanism 60 drives the carrier 70 to rotate so as to perform at least one rotational coating operation on the PFC inductor 200. 1032. The carrier 70 and the PFC inductor 200 that has completed at least one rotational coating operation on the carrier 70 are placed on the first coating station 31 on the coating container 30 by the transfer mechanism 60, so that the PFC inductor 200 can be initially placed on the first coating station 31 for coating. Then the transfer mechanism 60 releases the carrier 70 and the new carrier 70 conveyed by the feeding mechanism 10 to the first preset position 103 is transferred and clamped, ready for the second coating operation. 1033. When the transfer mechanism 60 releases the carrier 70 and performs the second dipping operation, the carrier pusher cylinder 342 drives the pusher plate 341 to move, pushing the carrier 70 located on the first dipping station 31 to the intermediate dipping station 33, so that the PFC inductor 200 can be further dipping in the intermediate dipping station 33. At this time, the first dipping station 31 is empty. 1034. After the transfer mechanism 60 has completed the second dip-coating operation and the rotational coating operation by clamping the new carrier 70, the transfer mechanism 60 places the new carrier 70 on the first paint-applying station 31. Then the transfer mechanism 60 releases the carrier 70 and goes to the first preset position 103 to clamp the new carrier 70 again in preparation for the third dip-coating operation. 1035. When the transfer mechanism 60 releases the carrier 70 and performs the third dipping operation, the carrier pusher cylinder 342 pushes the pusher plate 341 to move, pushing the carrier 70 located on the first dipping station 31 to the intermediate dipping station 33. When the carrier 70 on the first dipping station 31 moves to the intermediate dipping station 33, it will push the carrier 70 on the intermediate dipping station 33 to the second dipping station 32, so that the PFC inductor 200 can undergo the final static dipping at the second dipping station 32.

[0056] In this embodiment, by setting up the first paint-applying station 31, the second paint-applying station 32, the intermediate paint-applying station 33 and the carrier pushing component 34, the PFC inductor 200 is applied in stages, which improves the paint-applying effect and efficiency.

[0057] Step 104 includes: 1041. After the carrier 70 completes the final static coating at the second coating station 32, the transfer gripper 61 of the transfer mechanism 60 picks up the object located at the second coating station 32 and transfers it to the paint removal area 411 of the paint removal mechanism 40. 1042. The vertical lifting component 63 of the transfer mechanism 60 drives the carrier 70 and the PFC inductor 200 on the carrier 70 to descend, so that the bottom surface of the coil of the PFC inductor 200 contacts the varnish removal paper 421 in the varnish removal area 411, thereby removing the residual insulating varnish on the surface of the coil. In this embodiment, when it is necessary to replace the paint removal paper 421 in the paint removal area 411, the paint removal drive 44 drives the take-up paper drum to rotate, so that the take-up paper drum 43 can take up the used paint removal paper 421 in the paint removal area 411, and at the same time the unloading paper drum 42 releases new paint removal paper 421 to update the paint removal paper 421 in the paint removal area 411 and ensure the paint removal effect.

[0058] Step 105 includes: 1051. The vertical lifting component 63 of the transfer mechanism 60 drives the carrier 70 and the PFC inductor 200 on the carrier 70 that has completed paint removal to rise and leave the paint removal area 411. 1052. The rotating component 64 of the transfer mechanism 60 drives the carrier 70 to rotate, so that the PFC inductor 200 on the carrier 70 switches from the inverted position to the initial position. Then, the transfer mechanism 60 transfers the carrier 70 to the unloading mechanism 50 located at the second preset position 104. The unloading mechanism 50 transports the carrier 70 from the second preset position 104 to the unloading station 102 to complete the unloading.

[0059] 1053. The carrier 70 and the PFC inductor 200 on the carrier 70 are transferred to the unloading mechanism 50 at the second preset position 104 by the transfer mechanism 60. In this embodiment, the unloading mechanism 50 can also be an electric linear module. The electric linear module transports the PFC inductor 200, which has completed the processes of impregnation, paint removal and paint exfoliation, to the unloading station 102, thereby realizing the automated unloading of the PFC inductor 200.

[0060] The above is only used to illustrate the technical solution of the present invention and is not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of the present invention, as long as they do not depart from the spirit and scope of the technical solution of the present invention, should be covered within the scope of the claims of the present invention.

Claims

1. A PFC inductor impregnation device, characterized in that, It includes a body (100), a feeding mechanism (10), a paint dipping container (20), a paint extrusion container (30), a paint removal mechanism (40), a discharging mechanism (50), and a transfer mechanism (60). The body (100) is provided with a feeding station (101), a discharging station (102), a first preset position (103), and a second preset position (104). The feeding mechanism (10) is used to transport the PFC inductor (200) from the feeding station (101) to the first preset position (103); The varnish-impregnating container (20) is located on one side of the first preset position (103), and the varnish-impregnating container (20) contains insulating varnish. The paint-removing container (30) is located on one side of the paint-immersion container (20) and is used for the PFC inductor (200) to stand and remove paint. The paint removal mechanism (40) is located on the side of the paint-removing container (30) away from the paint-immersion container (20), and is used to contact the PFC inductor (200) and remove the residual insulating paint on the coil surface of the PFC inductor (200). The transfer mechanism (60) is used to first transfer the PFC inductor (200) at the first preset position (103) to the varnish-impregnating container (20), so that the coil of the PFC inductor (200) is completely immersed in the insulating varnish to complete the impregnation. Then, the impregnated PFC inductor (200) is transferred to the varnish-draining container (30) for static varnish-draining. After that, the static varnish-drained PFC inductor (200) is transferred to the varnish-removing mechanism (40), so that the varnish-removing mechanism (40) contacts the coil surface of the PFC inductor (200) to remove residual insulating varnish. Finally, the varnish-removed PFC inductor (200) is transferred to the second preset position (104). The unloading mechanism (50) is used to receive the PFC inductor (200) transferred by the transfer mechanism (60) at the second preset position (104), and to transport the received PFC inductor (200) from the second preset position (104) to the unloading station (102).

2. The PFC inductor impregnation apparatus according to claim 1, characterized in that, The paint removal mechanism (40) includes a paint removal frame (41), a paper feed roll (42) and a paper take-up roll (43) rotatably mounted on the paint removal frame (41), and a paint removal drive (44). The paint removal frame (41) is provided with a paint removal area (411). The paper feed roll (42) is used to release paint removal paper (421). The paint removal paper (421) released by the paper feed roll (42) passes through the paint removal area (411) and is wound onto the paper take-up roll (43). The paint removal drive (44) is used to drive the paper take-up roll (43) to rotate intermittently, so that the paper take-up roll (43) can rewind the used paint removal paper (421) in the paint removal area (411). At the same time, the paper feed roll (42) releases new paint removal paper (421) to refresh the paint removal paper (421) in the paint removal area (411).

3. The PFC inductor impregnation apparatus according to claim 2, characterized in that, A paint collection container (45) is provided between the paint removal mechanism (40) and the paint dipping container (20), and the paint collection container (45) is used to receive the insulating paint dripping from the PFC inductor (200) during its movement.

4. A PFC inductor impregnation apparatus according to any one of claims 1-3, characterized in that, It also includes a carrier (70) for simultaneously loading multiple PFC inductors (200); During operation, the transfer mechanism (60) sequentially transfers the carrier (70) at the first preset position (103) and the multiple PFC inductors (200) on the carrier (70) to the immersion container (20) for immersion, to the paint drain container (30) for paint draining, to the paint removal mechanism (40) for paint removal, and transfers the carrier (70) to the unloading mechanism (50) at the second preset position (104).

5. A PFC inductor impregnation apparatus according to claim 4, characterized in that, The paint drain container (30) is provided with a first paint drain station (31) near the paint dipping container (20), a second paint drain station (32) near the paint removal mechanism (40), and at least one intermediate paint drain station (33) between the first paint drain station (31) and the second paint drain station (32). The first paint application station (31), the second paint application station (32) and the intermediate paint application station (33) can all be used to place the carrier (70) so that the PFC inductor (200) on the carrier (70) can be left to stand and apply paint.

6. A PFC inductor impregnation apparatus according to claim 5, characterized in that, The paint coating container (30) is provided with a carrier pushing component (34), which is used to push the carrier (70) on the first paint coating station (31) and the multiple PFC inductors (200) on the carrier (70) in sequence to the intermediate paint coating station (33) and the second paint coating station (32) so as to perform step-by-step paint coating on the PFC inductors (200) on the carrier (70).

7. A PFC inductor impregnation apparatus according to claim 6, characterized in that, The vehicle pushing assembly (34) includes a push plate (341) slidably disposed between the first paint application station (31) and the intermediate paint application station (33) and a vehicle pushing cylinder (342) for driving the push plate (341) to move back and forth between the first paint application station (31) and the intermediate paint application station (33).

8. A PFC inductor impregnation apparatus according to claim 4, characterized in that, The transfer mechanism (60) includes a transfer gripper (61) for gripping the carrier (70), a horizontal moving component (62), a vertical lifting component (63), and a rotating component (64). The horizontal moving component (62) is used to drive the transfer gripper (61) to move horizontally, so that the transfer gripper (61) can move back and forth between a first preset position (103), a paint dipping container (20), a paint extrusion container (30), a paint removal mechanism (40), and a second preset position (104). The vertical lifting component (63) is used to drive the transfer gripper (61) to rise and fall vertically. The PFC inductor (200) has an initial state for easy transport and an inverted state for easy impregnation, degreasing and devarnishing operations. The rotating assembly (64) is used to drive the transfer gripper (61) to rotate so as to drive the carrier (70) to rotate, so that the PFC inductor (200) switches between the initial state and the inverted state.

9. A PFC inductor impregnation apparatus according to claim 8, characterized in that, The transfer mechanism (60) further includes a transfer fixing frame (65) on the body (100), a transfer moving frame (66) on the transfer fixing frame (65), and a transfer lifting frame (67) on the transfer moving frame (66); The horizontal moving component (62) is mounted on the transfer fixing frame (65) and drives the transfer moving frame (66) to slide in the horizontal direction. The vertical lifting component (63) is mounted on the transfer moving frame (66) and drives the transfer lifting frame (67) to rise and fall in the vertical direction. The rotating component (64) is mounted on the transfer lifting frame (67). The transfer gripper (61) is mounted on the transfer lifting frame (67) and is driven to rotate by the rotating component (64).

10. A method for impregnating a PFC inductor, based on the PFC inductor impregnation apparatus as described in any one of claims 1-9, characterized in that, Includes the following steps: The PFC inductor (200) is conveyed from the loading station (101) to the first preset position (103) by the loading mechanism (10) to complete the loading; The PFC inductor (200) at the first preset position (103) is transferred to the varnish-impregnating container (20) by the transfer mechanism (60), and the coil of the PFC inductor (200) is completely immersed in the insulating varnish in the varnish-impregnating container (20); The PFC inductor (200) that has completed impregnation is transferred to the paint-removing container (30) by the transfer mechanism (60), so that the PFC inductor (200) can be left to stand and be painted on the paint-removing container (30). The PFC inductor (200) that has completed the varnishing process is transferred to the varnish removal mechanism (40) by the transfer mechanism (60), and the residual insulating varnish is removed by the contact between the varnish removal mechanism (40) and the coil surface of the PFC inductor (200). The PFC inductor (200) that has been de-coated is transferred to the unloading mechanism (50) at the second preset position (104) by the transfer mechanism (60). The unloading mechanism (50) then transports the PFC inductor (200) from the second preset position (104) to the unloading station (102) to complete the unloading.