Stator winding potting tool

Abstract

The invention relates to a stator winding potting tool, which comprises a stator, a core mold, an upper mold, a lower mold, a sealing ring, a potting head, a rotating shaft, a gear transmission device, a motor, a UV lamp, a heating coil and the like, and is characterized in that the sealing ring is arranged between the upper mold and the lower mold, so that effective sealing between the stator and the molds is ensured, and glue leakage is prevented; bubbles in the stator and in the glue are extracted through vacuum equipment, and it is ensured that the glue evenly fills stator winding gaps; the motor drives the stator to rotate to generate centrifugal force, so that the glue is uniformly distributed in each gap of the stator winding; a UV lamp is arranged in the core mold and used for rapidly curing glue, the outer barrel is provided with a heating coil, stress generated in the glue curing process is eliminated through heating, efficient and uniform glue distribution, bubble elimination and stress elimination are achieved through the synergistic effect of centrifugal force, vacuum and heating, the stator winding potting quality and efficiency are improved, and the production efficiency is improved. The method is suitable for stator winding potting operation with high requirements on electrical insulation performance.

Description

Technical Field

[0001] The invention relates to a stator winding potting tool, in particular to a stator winding potting tool applied in the technical field of motor manufacturing. Background Art

[0002] In the field of motor manufacturing, the potting of stator windings is an important link to ensure the insulation performance, durability and heat dissipation performance of the motor. The existing potting technology has certain shortcomings, such as uneven glue distribution, residual bubbles, stress concentration and other problems, which make the motor windings prone to insulation aging, performance degradation and even failure during long-term use.

[0003] Chinese invention patent application CN117937869A discloses a motor stator glue potting tooling, which improves the glue potting quality, reduces the generation of bubbles, and speeds up the glue potting speed by dividing the potting space into multiple U-shaped potting units. However, the design has certain limitations, which are mainly manifested in: although the bubbles are reduced by separating the potting units, its ability to remove bubbles inside the stator is limited, and it cannot completely avoid bubbles remaining in the glue; the tooling is limited to fixed potting units, which is difficult to adapt to stators of different sizes and shapes, and has poor operational flexibility; there is a lack of an effective mechanism to eliminate the stress generated after the glue is cured, which makes the stator prone to structural deformation or stress concentration after long-term use.

[0004] Chinese invention patent application CN113258735A discloses a stator glue potting tool and method thereof. Through overall glue potting, the space between the stator and the motor housing is filled with potting glue, which improves the thermal conductivity between the stator and the housing and reduces the winding temperature. Although its thermal conductivity is improved, it still has the following shortcomings: due to the overall glue potting design, the glue distribution is not accurate enough, and local glue accumulation is prone to occur, affecting the uniform potting effect of the stator; lack of effective exhaust design, the bubble problem is still difficult to completely solve; the stress generated after curing cannot be eliminated in time, affecting the long-term stability of the stator.

[0005] Although the above two existing technologies have improved the quality of stator glue potting to a certain extent, they still have limitations, such as incomplete bubble removal, uneven glue mixing and distribution, and untreated curing stress. These problems can easily affect the performance and service life of the stator in motor manufacturing. Summary of the invention

[0006] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is how to solve the problems of uneven glue mixing and distribution, incomplete bubble removal, and inability to effectively eliminate curing stress.

[0007] In order to solve the above problems, the present invention provides a stator winding potting tool, including a stator, a core mold is arranged in the stator, the top and bottom ends of the stator are respectively fixedly connected with an upper mold and a lower mold by screws, a sealing ring is fixed between the upper mold, the lower mold and the stator, a through hole is opened in the core mold along its axial direction, a plurality of guide grooves are opened in the bottom end of the core mold along its radial direction, a potting head is clamped in the through hole on the core mold, a first potting hole, a vacuum hole and a second potting hole are opened in the potting head along its axial direction, and the first potting hole, the vacuum hole and the second potting hole all penetrate the potting head, The glue filling hole 1, the vacuum hole and the glue filling hole 2 are respectively connected to the glue filling equipment and the vacuum equipment. The bottom end of the lower mold is fixedly connected with a rotating shaft, the outer end of the rotating shaft is fixedly connected with a gear 1, the outer end of the gear 1 is meshingly connected with a gear 2, a motor is provided at the bottom end of the gear 2, and the motor power shaft is fixedly connected to the gear 2. The core mold is made of transparent material, and a UV lamp is fixed in the core mold. The glue filling hole 1 and the glue filling hole 2 are fixedly connected with an adjustment ring made of piezoelectric material. The adjustment ring is provided with a through hole along the axial direction of the filling head, and the strain direction of the adjustment ring is its radial direction.

[0008] In the above-mentioned stator winding potting tooling, the vacuum environment and the rotating centrifugal force are combined to achieve uniform distribution of glue and complete removal of bubbles; the glue is quickly cured by UV lamp and combined with heating coil heating to eliminate curing stress, thereby ensuring the stability and reliability of the stator winding in long-term use. Specifically, the bubbles inside the stator and in the glue are extracted in a vacuum environment to ensure that the glue is evenly filled in the winding gaps without residual bubbles, thereby improving the insulation performance; the stator is driven to rotate by a motor, and the glue is evenly distributed in the internal gaps of the stator by centrifugal force, thereby avoiding the problem of local glue accumulation and ensuring the uniformity and consistency of potting; the UV lamp can quickly cure the glue, while the heating coil heats the stator during the curing process to eliminate the stress generated during the curing process and ensure the stability of the stator structure during use; the core mold is made of transparent material, so the operator can intuitively observe the distribution of the glue, which is convenient for real-time monitoring and adjustment, thereby improving the accuracy of the operation and the controllability of the process.

[0009] As a further improvement of the present application, the bottom end of the motor is fixedly connected to a base, the top end of the base is fixedly connected to a fixed bracket, and the fixed bracket and the sliding bracket are provided with sliding grooves at positions corresponding to the injection head and the rotating shaft, and the sliding grooves are used to support the rotation of the injection head and the rotating shaft.

[0010] As a further improvement of the present application, the filling head and the outer end of the rotating shaft are respectively clamped with a top cover and a bottom cover, the top end of the bottom cover is fixedly connected to the outer cylinder, and the outer end of the filling head is slidably connected to the inner wall of the outer cylinder.

[0011] As a further improvement of the present application, the outer cylinder is made of pure copper and has excellent thermal conductivity and sealing performance, ensuring the temperature uniformity and stability during the potting process. A heating coil is fixedly connected to the outer end of the outer cylinder. The heating coil is used to eliminate the stress generated after the glue is cured by uniform heating, thereby ensuring the stability of the stator winding.

[0012] As another improvement of the present application, the positions of the fixed bracket and the sliding bracket corresponding to the outer cylinder are both U-shaped structures, the top cover and the bottom cover are both located in the U-shaped structure of the sliding bracket, the sliding bracket is located in the U-shaped structure of the fixed bracket, and the fixed bracket and the sliding bracket are slidably connected.

[0013] As another improvement supplement of the present application, a sliding groove matching with the bottom end of the sliding bracket is provided on the base at a position corresponding to the bottom end of the sliding bracket.

[0014] In summary, this application has the following beneficial effects: 1. By opening a glue injection hole 1 and a glue injection hole 2 in the injection head, and setting an adjustment ring in the glue injection hole 1 and the glue injection hole 2, the mixing ratio of the two glues can be adjusted by adjusting the size of the through hole of the adjustment ring, thereby improving the uniformity of the glue mixing. By setting a sealing ring between the upper mold and the lower mold, and firmly fixing the upper mold and the lower mold to the stator with screws, an efficient sealing structure is formed. The sealing structure can effectively prevent the glue from leaking during the glue injection process, ensuring that the glue inside the stator is only distributed in the gap of the stator winding, and will not pollute the external environment or cause material waste. In addition, the presence of the sealing ring further improves the sealing performance of the equipment and ensures the stability and efficiency of the entire potting process.

[0015] 2. The inside of the stator and the glue are evacuated through the vacuum hole, and the filling head cooperates with the through hole of the core mold to ensure the formation of a vacuum environment. The vacuum state can effectively remove the bubbles in the glue and prevent the bubbles from remaining in the gaps of the stator windings. This design ensures that the glue can evenly fill all the gaps inside the stator, thereby improving the insulation performance of the stator windings, which is particularly suitable for high-demand electrical application scenarios.

[0016] 3. By setting up the motor and the shaft structure, the stator winding rotates continuously during the glue pouring process. The motor drives the stator to rotate through the meshing transmission of gear one and gear two. The centrifugal force generated evenly distributes the glue to each gap inside the stator. Due to the effect of the centrifugal force during the rotation process, the glue can quickly and evenly fill each gap of the stator winding, avoiding the local glue accumulation or uneven distribution in the traditional glue pouring process, and further improving the potting effect of the stator.

[0017] 4. The core mold is made of transparent material and has a built-in UV lamp. The UV lamp can be quickly started to perform preliminary curing of the glue after each glue filling. The transparent core mold not only allows the operator to observe the distribution of the glue in real time to ensure the quality of glue filling, but also can significantly shorten the glue curing time through the rapid curing technology of the UV lamp. The rapid curing of the UV lamp ensures that the glue will not move during the rotation process, maintains the uniform distribution of the glue, and further improves the potting efficiency and accuracy.

[0018] 5. The outer cylinder is made of pure copper material with excellent thermal conductivity, and a heating coil is fixed on the outside. The heating coil continues to heat the stator during the curing process, and the temperature is appropriately increased after the glue is cured to help eliminate the internal stress caused by the glue curing. Through this design, the stress concentration problem of the stator winding after the glue is cured is avoided, ensuring that the stator maintains structural stability and mechanical strength during long-term use. This stress relief design is particularly suitable for stator windings that need to work stably for a long time, which improves their service life and safety.

[0019] 6. The core mold is made of transparent material, so that the operator can intuitively observe the flow and distribution of glue during the glue pouring process. The design of the transparent core mold structure not only ensures the accuracy of the operation, but also provides convenience for real-time monitoring and adjustment of the glue pouring process, which can effectively avoid quality problems caused by uneven glue distribution or improper operation. The use of transparent core mold with UV lamp and centrifugal force makes the glue pouring process more efficient and controllable.

[0020] 7. The U-shaped structure design of the fixed bracket and the sliding bracket ensures that the filling head and the rotating shaft can be flexibly installed and adjusted. The sliding groove on the bracket allows the filling head and the rotating shaft to rotate smoothly, and is convenient for the installation and maintenance of the equipment. This design not only improves the applicability of the equipment, enabling it to adapt to stator winding filling operations of different specifications, but also ensures the stability and ease of operation of the equipment in multiple operations.

[0021] 8. Through the multiple synergistic effects of centrifugal force, vacuum and heating coils, bubbles inside the stator can be effectively removed during the glue pouring process, and the stress caused by the glue curing can be eliminated during the curing process. The centrifugal force ensures the uniform distribution of the glue, the vacuum environment eliminates the bubbles in the glue, and the heating design of the heating coil further eliminates the curing stress. This synergistic effect significantly improves the insulation performance and mechanical strength of the stator winding, ensuring the reliability and durability of the encapsulated stator in a high-demand environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is the overall structure diagram of this application; Figure 2 Partial explosion for this application Figure 1 ; Figure 3 Partial explosion for this application Figure 2 ; Figure 4 Partial explosion for this application Figure 3 ; Figure 5 This is an overall exploded view of this application; Figure 6 This is the front view of the application; Figure 7 For this application Figure 6 Middle AA section view; Figure 8 For this application Figure 7 Middle BB section view; Fig. 9 For this application Figure 7 Enlarged view of point C in the middle; Fig.10 For this application Figure 7 Enlarged view of point D in the middle; Fig.11 For this application Figure 7 Enlarged view of point E in the middle; Fig.12 This is the appearance structure diagram of this application.

[0023] Description of the numbers in the figure: 1. Stator; 2. Core mold; 3. Screws; 4. Upper mold; 5. Lower mold; 6. Sealing ring; 7. Through hole; 8. Guide groove; 9. Pouring head; 10. Glue filling hole 1; 11. Vacuum hole; 12. Rotating shaft; 13. Gear 1; 14. Gear 2; 15. Motor; 16. Base; 17. Fixed bracket; 18. Sliding bracket; 19. Top cover; 20. Bottom cover; 21. Outer cylinder; 22. Heating coil; 23. Glue filling hole 2; 24. Adjusting ring. DETAILED DESCRIPTION

[0024] Two embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0025] like Figures 1 to 12 shown.

[0026] First, according to the description of claim 1, prepare the various components of the stator winding potting tooling, including the stator 1, the core mold 2, the upper mold 4, the lower mold 5, the screw 3, the sealing ring 6, the potting head 9, the rotating shaft 12, the motor 15, the base 16, the fixed bracket 17, the sliding bracket 18, the top cover 19, the bottom cover 20, the outer cylinder 21, the heating coil 22, etc.

[0027] Installing the stator and mold Place the sealing ring 6 on the top of the lower mold 5, place the stator 1 on the sealing ring 6, fix the lower mold 5 and the stator 1 together with the screws 3 to ensure the sealing of the stator 1 and the lower mold 5, place another sealing ring 6 on the top of the stator 1, place the upper mold 4 above the sealing ring 6, and fix the upper mold 4 and the stator 1 together with the screws 3.

[0028] Install the core mold The core mold 2 is placed inside the stator 1 so that the bottom end of the core mold 2 abuts against the top end of the lower mold 5. The core mold 2 is provided with a through hole 7 along its axial direction and a plurality of guide grooves 8 along its radial direction at its bottom end to ensure smooth flow of the fluid during the glue pouring process.

[0029] Install the potting device The pouring head 9 is installed into the through hole 7 of the core mold 2 by snap-fitting to ensure its firm connection. The top cover 19 is installed on the outer end of the pouring head 9, and the top cover 19 is ensured to be slidably connected to the outer cylinder 21. The outer cylinder 21 is made of pure copper and has a heating coil 22 fixedly connected to its outer end to ensure temperature uniformity and stability during the pouring process.

[0030] Install the transmission mechanism and motor The bottom end of the lower mold 5 is fixedly connected with a rotating shaft 12, the outer end of the rotating shaft 12 is fixedly connected with a gear 13, the gear 13 is connected with a gear 2 14 through meshing, and the gear 2 14 is fixed on the power shaft of the motor 15.

[0031] The bottom end of the motor 15 is fixed on the base 16, and the top of the base 16 supports the injection head 9 and the rotating shaft 12 through a fixed bracket 17 and a sliding bracket 18. A slide groove is provided in the U-shaped structure of the bracket to facilitate the rotation of the injection head 9 and the rotating shaft 12. The slide groove between the sliding bracket 18 and the base 16 cooperates to ensure the stability and flexibility of the entire device.

[0032] Working process: A vacuum pump is used to evacuate the inside of the stator 1 and the through hole 7, and at the same time, the glue is evacuated through the vacuum hole 11 to maintain the vacuum state inside the stator 1. Subsequently, the glue pouring equipment is started to pour the two glues into the inside of the stator 1 in sequence through the glue pouring hole 10 and the glue pouring hole 23 according to the required proportion. During the pouring process, the proportion of the two glues is adjusted in real time by the adjusting ring 24, and the glue flows evenly into the winding gap of the stator 1 through the pouring head 9, the through hole 7 and the guide groove 8.

[0033] During the glue pouring process, the starting motor 15 drives the stator 1, the core mold 2, the upper mold 4 and the lower mold 5 to rotate together. Through the meshing transmission of the gear 13 and the gear 2 14, the stator 1 generates centrifugal force, and the centrifugal force makes the glue evenly distributed in the winding inside the stator 1. At the same time, the combined effect of the centrifugal force and the vacuum extraction helps to remove the bubbles inside the stator 1, further improving the potting effect.

[0034] After the glue pouring is completed, the glue is cured by the UV lamp inside the core mold 2. During the curing process, the motor 15 continuously rotates the stator 1 to ensure that the glue is evenly distributed during the curing period. After the curing is completed, the heating coil 22 is started to heat the stator 1, and the temperature is appropriately increased to eliminate the stress generated during the glue curing process, thereby ensuring the stability and durability of the stator 1 winding.

[0035] The design of the sealing ring 6 ensures effective sealing between the stator 1 and the upper mold 4 and the lower mold 5, preventing glue from leaking out during the potting process, thereby ensuring the cleanliness and efficiency of the potting process.

[0036] The glue pouring is performed under vacuum state, bubbles in the glue are removed through the vacuum hole 11, and the vacuum is maintained inside the stator 1, which helps to eliminate the interference of air and ensure uniform glue pouring effect.

[0037] The motor 15 drives the stator 1 to rotate, and the centrifugal force generated enables the glue to be evenly distributed in the winding gap of the stator 1, effectively avoiding the phenomenon of uneven glue distribution in the traditional glue filling process.

[0038] UV lamp curing can quickly and preliminarily cure the glue, while the heating coil 22 further heats and raises the temperature to eliminate stress, effectively improving the structural strength after potting and avoiding the stress concentration problem of the stator winding in later use.

[0039] The core mold 2 is made of a transparent material, so that the operator can visually observe the flow and distribution of the glue, which helps to monitor the glue pouring process in real time and ensure the accuracy and uniformity of the glue pouring.

[0040] The mixing ratio of the two glues can be adjusted in real time by adjusting the ring 24, so that the glues are mixed more evenly; Through the above implementation process, the stator winding potting tool can improve the quality and efficiency of stator winding potting while ensuring sealing, accuracy and ease of operation.

[0041] like Figures 1 to 12 shown.

[0042] A potting method using a stator winding potting tool comprises the following steps in sequence: S1. Place a sealing ring 6 on the top of the lower mold 5, then place the stator 1 on the sealing ring 6, and fix the lower mold 5 to the stator 1 with screws 3 to ensure sealing; S2. Place a sealing ring 6 on the top of the stator 1, then fix the upper mold 4 on the sealing ring 6, and fix the upper mold 4 to the stator 1 with screws 3; S3, placing the core mold 2 inside the stator 1, so that the bottom end of the core mold 2 abuts against the top end of the lower mold 5; S4, the bottom cover 20 is fixedly connected to the outer end of the rotating shaft 12, the combination of the outer tube 21 and the heating coil 22 is fixed to the top of the bottom cover 20, and then the top cover 19 is fixedly connected to the outer end of the pouring head 9, and the top cover 19 is slidably connected to the outer tube 21; S5, put the pouring head 9 and the rotating shaft 12 between the U-shaped structure of the sliding bracket 18, install the sliding bracket 18 to the base 16, and make the pouring head 9 and the outer wall of the rotating shaft 12 and the fixed bracket 17 rotatably connected; S6, vacuuming the inside of the stator 1 and the through hole 7 by means of a vacuuming device, and vacuuming the glue to be poured at the same time, and maintaining the vacuum state until the pouring is completed; S7, pouring glue into the stator 1 through the pouring head 9 for multiple times, and the glue enters the gap in the stator 1 through the through hole 7 and the guide groove 8 in turn; S8. During the glue pouring process, the motor 15 drives the stator 1, the core mold 2, the upper mold 4 and the lower mold 5 to rotate, and the centrifugal force generated makes the glue evenly distributed. At the same time, the centrifugal force and vacuum work together to remove the bubbles in the stator 1; S9. After each glue pouring, the glue is cured by the UV lamp in the core mold 2, and the stator 1 is heated by the heating coil 22 to maintain the rotating state to ensure that the glue is evenly distributed. After the curing is completed, the temperature is appropriately increased to eliminate the stress generated during the glue curing process.

[0043] On the basis of Example 1, this example further optimizes the potting process to ensure efficient glue potting while further improving the uniformity of glue distribution and the overall reliability of the stator.

[0044] First, the operator places the sealing ring 6 on the top of the lower mold 5 .

[0045] Subsequently, the stator 1 is placed above the sealing ring 6, and the lower mold 5 is tightly fixedly connected to the stator 1 by means of screws 3 to ensure the sealing performance.

[0046] Next, a sealing ring 6 is also placed on the top of the stator 1, and an upper mold 4 is placed above the sealing ring 6, and then the upper mold 4 and the stator 1 are firmly fixed by screws 3 to ensure that the entire stator 1 is completely sealed at both ends.

[0047] The operator inserts the core mold 2 into the stator 1 along its axial direction so that the bottom end of the core mold 2 abuts against the top end of the lower mold 5. The core mold 2 has a through hole 7 and a guide groove 8 to facilitate the subsequent injection and distribution of glue.

[0048] The bottom cover 20 is fixedly connected to the outer end of the rotating shaft 12, and a combination of an outer cylinder 21 made of pure copper and a heating coil 22 is fixed to the top of the bottom cover 20. The outer cylinder 21 has excellent thermal conductivity and can ensure temperature uniformity.

[0049] The pouring head 9 is clamped into the through hole 7 of the core mold 2 to ensure that the glue pouring hole 10 and the vacuum hole 11 of the pouring head 9 can be connected to external equipment (glue pouring equipment and vacuum equipment).

[0050] A top cover 19 is installed at the outer end of the filling head 9 to ensure that the top cover 19 is slidably connected to the inner wall of the outer cylinder 21 to ensure flexible operability of the equipment.

[0051] The bottom end of the lower mold 5 is connected to the rotating shaft 12 , and the rotating shaft 12 is meshed and connected with the gear 2 14 through the gear 1 13 , and the gear 2 14 is connected to the power shaft of the motor 15 .

[0052] The bottom end of the motor 15 is fixed on the base 16, and the injection head 9 and the rotating shaft 12 are supported by a fixed bracket 17 and a sliding bracket 18. The sliding bracket 18 has a U-shaped structure and slides with the fixed bracket 17 to ensure the stability and flexibility of the equipment.

[0053] The vacuuming device is started to vacuum the interior of the stator 1 and the through hole 7 through the vacuum hole 11. At the same time, the glue in the glue filling device is vacuumed to remove bubbles in the glue to ensure the purity of the glue.

[0054] After the vacuum is completed, glue is poured through the glue pouring hole for several times for 10 minutes. The glue flows into the interior of the stator 1 through the pouring head 9, the through hole 7 and the guide groove 8 in turn, and evenly fills the gaps of the windings inside the stator 1.

[0055] The motor 15 is started to drive the stator 1, the core mold 2, the upper mold 4 and the lower mold 5 to rotate.

[0056] During the rotation of the stator 1 , the centrifugal force generated pushes the glue to the gaps of the windings inside the stator 1 , ensuring that the glue can be evenly distributed in all gaps of the stator 1 . At the same time, the centrifugal force and the continuous vacuuming effect help to remove the bubbles that may remain inside the stator 1 , further improving the quality of the potting.

[0057] After each injection of glue, the UV lamp inside the core mold 2 is started to initially cure the injected glue. The UV lamp can quickly cure the glue and prevent the glue from flowing.

[0058] After the UV lamp curing is completed, the heating coil 22 is started to heat the stator 1. Through the continuous heating of the heating coil 22, the stator 1 maintains a uniform distribution of glue while rotating, ensuring that there will be no unevenness in the glue curing process inside the entire stator winding.

[0059] During the curing process, by increasing the heating temperature of the heating coil 22, the stress that may be generated when the glue is cured is gradually eliminated, so that the stator winding after potting can maintain high strength and stability.

[0060] In this embodiment, the double sealing design of the sealing ring 6 ensures the sealing between the stator 1 and the upper mold 4 and the lower mold 5, avoids the phenomenon of glue leakage during the glue pouring process, and ensures the smooth progress of the pouring process.

[0061] When pouring glue, the vacuum state can effectively remove the bubbles in the glue, and the centrifugal force driven by the motor 15 further ensures that the glue is evenly distributed in the winding gap of the stator 1. The synergistic effect of the two helps to improve the potting quality, so that no bubbles remain inside the stator 1, thereby enhancing the insulation performance of the stator winding.

[0062] The UV lamp inside the core mold 2 can quickly cure the glue and prevent the glue from flowing, thereby improving the potting efficiency, while the heating coil 22 gradually heats the stator 1 through temperature control technology, further eliminating the stress generated during the curing process and ensuring the mechanical strength and stability of the stator winding in subsequent use.

[0063] Since the core mold 2 is made of transparent material, the operator can monitor the flow of glue in real time during the glue pouring process, and adjust the glue pouring speed and operation steps in time to ensure that each pouring can achieve the expected effect.

[0064] After curing is completed, the stator 1 is heated by the heating coil 22, and the temperature can be appropriately increased to gradually eliminate the stress that may be generated during the glue curing process, thereby ensuring that the stator winding after potting has good stress distribution and structural stability.

[0065] Through this embodiment, the operating process of the stator winding potting tooling is further optimized, especially with significant advantages in terms of uniform distribution of glue, bubble removal, curing effect and stress relief, thereby improving the service life and electrical performance of the stator winding.

[0066] In view of current practical needs, the above-mentioned implementation mode adopted in this application is not limited to the scope of protection. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the scope of protection of the present invention.

Claims

1. A stator winding potting tool, characterized in that: The invention comprises a stator (1), wherein a core mold (2) is provided inside the stator (1), and the top and bottom ends of the stator (1) are respectively fixedly connected to an upper mold (4) and a lower mold (5) by screws (3), and sealing rings (6) are fixed between the upper mold (4) and the lower mold (5) and the stator (1), and the core mold (2) is provided with a through hole (7) along its axial direction, and the bottom end of the core mold (2) is provided with a plurality of guide grooves (8) along its radial direction, and a pouring head (9) is clamped inside the through hole (7) on the core mold (2), and a first pouring hole (10), a vacuum hole (11) and a second pouring hole (23) are provided inside the pouring head (9) along its axial direction, and the first pouring hole (10), the vacuum hole (11) and the second pouring hole (23) all penetrate the pouring head (9), and the first pouring hole (10), the vacuum hole (11) and the second pouring hole (23) are connected to ... The hollow hole (11) and the second glue injection hole (23) are connected to the glue injection equipment and the vacuum extraction equipment respectively. The bottom end of the lower mold (5) is fixedly connected to a rotating shaft (12). The outer end of the rotating shaft (12) is fixedly connected to a gear one (13). The outer end of the gear one (13) is meshingly connected to a gear two (14). A motor (15) is provided at the bottom end of the gear two (14), and a power shaft of the motor (15) is fixedly connected to the gear two (14). The core mold (2) is made of a transparent material, and a UV lamp is fixed inside the core mold (2). An adjustment ring (24) made of a piezoelectric material is fixedly connected inside the first glue injection hole (10) and the second glue injection hole (23). The adjustment ring (24) is provided with a through hole along the axial direction of the injection head (9), and the strain direction of the adjustment ring (24) is its radial direction.

2. The stator winding potting tool according to claim 1, characterized in that: The bottom end of the motor (15) is fixedly connected to a base (16), and the top end of the base (16) is fixedly connected to a fixed bracket (17). The fixed bracket (17) and the sliding bracket (18) are both provided with sliding grooves at positions corresponding to the injection head (9) and the rotating shaft (12), and the sliding grooves are used to support the injection head (9) and the rotating shaft (12) to rotate.

3. The stator winding potting tool according to claim 2, characterized in that: The outer ends of the pouring head (9) and the rotating shaft (12) are respectively clamped with a top cover (19) and a bottom cover (20); the top end of the bottom cover (20) is fixedly connected to an outer cylinder (21); the outer end of the pouring head (9) is slidably connected to the inner wall of the outer cylinder (21); and the positions of the fixed bracket (17) and the sliding bracket (18) corresponding to the outer cylinder (21) are both U-shaped structures.

4. The stator winding potting tool according to claim 3, characterized in that: The outer cylinder (21) is made of pure copper and has excellent thermal conductivity and sealing performance, thereby ensuring temperature uniformity and stability during the potting process. A heating coil (22) is fixedly connected to the outer end of the outer cylinder (21), and the heating coil (22) is used to eliminate stress generated after the glue is cured by heating evenly, thereby ensuring the stability of the stator (1) winding.

5. The stator winding potting tool according to claim 3, characterized in that: The top cover (19) and the bottom cover (20) are both located within the U-shaped structure of the sliding bracket (18), the sliding bracket (18) is located within the U-shaped structure of the fixed bracket (17), and the fixed bracket (17) and the sliding bracket (18) are slidably connected.

6. The stator winding potting tool according to claim 2, characterized in that: A sliding groove matching the bottom end of the sliding bracket (18) is provided on the base (16) at a position corresponding to the bottom end of the sliding bracket (18).

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