Motor wire inserting tool
By using a motor winding fixture with a first and a second tooth protection structure, the winding coil is gathered twice, solving the problem of damage to the winding coil during the embedding process and improving the insulation performance of the motor.
Patent Information
- Application Number
- CN202422028859.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-20
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-08-20
AI Technical Summary
During motor assembly, the pressure between the winding coil and the winding coil slot is relatively large during the process of embedding the winding coil into the winding coil slot, which can damage the winding coil and affect the insulation performance of the motor.
A motor winding fixture comprising a first tooth protection structure and a second tooth protection structure is adopted. By twice gathering the winding coil, the squeezing force during embedding is reduced, ensuring the regularity and insulation performance of the winding coil.
This improves the regularity of the winding coil's embedding in the winding coil slot, avoids damage to the winding coil and breakage of the slot bottom paper, and ensures the insulation performance of the motor.
Smart Images
Figure CN223502708U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of motor technology, specifically to a motor winding tooling. Background Technology
[0002] An electric motor includes a stator, which comprises an iron core and winding coils. The iron core has winding coil slots, in which the winding coils are embedded. However, during motor assembly, the compression force between the winding coils and the slots is significant, which can damage the winding coils and reduce the motor's insulation performance. Utility Model Content
[0003] This application provides a motor winding fixture that can prevent damage to the winding coils and ensure the insulation performance of the motor.
[0004] In a first aspect, embodiments of this application provide a motor winding fixture, including a first tooth guard structure and a second tooth guard structure. The first tooth guard structure includes a first tooth guard disc and a plurality of first teeth, which are arranged around the first tooth guard disc at preset intervals along the axial centerline of the motor stator core. The second tooth guard structure includes a second tooth guard disc and a plurality of second teeth, which are arranged around the second tooth guard disc at preset intervals along the axial centerline of the motor stator core.
[0005] When the motor winding fixture is used, the first tooth protection structure and the second tooth protection structure are arranged in parallel on the same side of the motor stator core along the axial center line parallel to the motor stator core. The first tooth protection structure is close to the motor stator core, and the second tooth protection structure is far away from the motor stator core.
[0006] The motor winding fixture provided in this application includes a first tooth guard structure and a second tooth guard structure. The first tooth guard structure includes multiple first teeth, and the second tooth guard structure includes multiple second teeth. The multiple first teeth and multiple second teeth are respectively arranged around the axial centerline of the motor stator core at preset intervals. The first tooth guard structure and the second tooth guard structure correspond to the motor stator core and can gather the winding coil. In use, the motor stator core, the first tooth guard structure, and the second tooth guard structure are arranged sequentially in a direction parallel to the axial centerline of the motor stator core. The second tooth guard structure initially gathers the winding coil, and then the first tooth guard structure gathers the winding coil again. The winding coil, after being gathered twice, is then embedded into the winding coil slot of the motor stator core. This can improve the regularity of the winding coil embedded in the winding coil slot, reduce the squeezing force when the winding coil is embedded in the winding coil slot, avoid damage to the winding coil, and ensure the insulation performance of the motor.
[0007] In some embodiments that may include the above embodiments, the first tooth includes a first tooth portion and a first tail portion. The first tooth portion is asymmetrically arranged along the center line of the first tooth. The first tooth portion includes a first lateral extension portion, which is U-shaped. The first tail portion is provided with a first through hole for fixing the first tooth. The second tooth includes a second tooth portion and a second tail portion. The second tooth portion is asymmetrically arranged along the center line of the second tooth. The second tooth portion includes a second lateral extension portion, which is U-shaped. The second tail portion is provided with a second through hole for fixing the second tooth.
[0008] The first tooth portion includes a first lateral extension portion, and the second tooth portion includes a second lateral extension portion. The first and second lateral extension portions are U-shaped, similar to the shape of the winding coil slot. When used in a motor winding fixture, the first and second tooth portions can close the winding coil, so that the shape of the closed winding coil corresponds to the shape of the winding coil slot, facilitating the insertion of the winding coil into the winding coil slot.
[0009] In some embodiments that may include the above embodiments, the second tooth has the same shape as the first tooth, and the area of the second tooth is greater than or equal to the area of the first tooth.
[0010] The second tooth has the same shape as the first tooth, simplifying its processing and reducing costs. The second tooth initially gathers the winding coil. Its area is greater than or equal to that of the first tooth, and its force-bearing area is also greater. When the winding coil passes through the second tooth structure, it hasn't yet been gathered, resulting in a greater compressive force on the second tooth. The larger area of the second tooth helps distribute this compressive force, ensuring its stability and preventing it from shaking and affecting its gathering effect on the winding coil.
[0011] In some embodiments that may include the above embodiments, when the motor winding fixture is used, the bottom of the first lateral extension corresponds to the bottom of the winding coil slot on the motor stator core along a direction parallel to the axial center line of the motor stator core, and the bottom of the second lateral extension corresponds to the bottom of the winding coil slot on the motor stator core along a direction parallel to the axial center line of the motor stator core.
[0012] The first lateral extension of each first tooth forms a first bottom guide groove, and the second lateral extension of each second tooth forms a second bottom guide groove. The first and second bottom guide grooves correspond to the winding coil slots on the motor stator core along a direction parallel to the axial centerline of the motor stator core. Along the axial centerline of the motor stator core, the projection of the first bottom guide groove lies inside the projection of the second bottom guide groove. The first and second bottom guide grooves are used to guide the motor stator winding coils into the winding coil slots of the motor stator core.
[0013] When using the motor winding fixture, the first and second lateral extensions correspond to the bottom of the winding coil slots on the motor stator core along a direction parallel to the axial centerline of the motor stator core. The bottom of the winding coil slots experiences significant compressive force, and the first and second lateral extensions incorporate the main characteristics of the winding coil slots. When the slot fill factor is low, the winding coil can pass sequentially through the second bottom guide slot and the first bottom guide slot, and be gathered and embedded into the winding coil slot by both.
[0014] In some embodiments that may include the above-described examples, when the motor winding fixture is used, the first teeth of two adjacent first teeth form a first guide groove, and the second teeth of two adjacent second teeth form a second guide groove. The first and second guide grooves correspond to the winding coil slots along a direction parallel to the axial centerline of the motor stator core. Along the direction parallel to the axial centerline of the motor stator core, the projection of the first guide groove is located inside the projection of the second guide groove. The first and second guide grooves are used to guide the motor stator winding coil into the winding coil slot on the motor stator core.
[0015] The first teeth of two adjacent first teeth form a first guide groove, and the second teeth of two adjacent second teeth form a second guide groove. The first and second guide grooves encompass all the features of the winding coil slots, and can accommodate more winding coils. When the slot fill factor is large, the winding coil can pass through the second and first guide grooves in sequence, and be gathered together and embedded into the winding coil slot by both.
[0016] In some embodiments that may include the above embodiments, the projected area of the first guide groove is 85%-95% of the projected area of the second guide groove.
[0017] The projected area of the first guide groove is 85%-95% of the projected area of the second guide groove. This ensures that the second guide groove can gather the winding coil while avoiding excessive squeezing pressure on the winding coil as it passes through the second guide groove, which could damage the winding coil.
[0018] In some embodiments that may include the above embodiments, the first tooth guard disc includes a first arc-shaped groove, within which the first tooth moves. The second tooth guard disc includes a second arc-shaped groove, within which the second tooth moves.
[0019] The first and second arc-shaped slides can control the movement trajectory of the first and second teeth. By changing the positions of the first and second teeth within the first and second arc-shaped slides, the closing and retraction of the first and second tooth protection structures can be controlled, thereby preventing the bottom of the winding coil from contacting the first tooth protection structure and causing rubbing or snagging. The first and second arc-shaped slides can reduce their occupied area on the first and second tooth protection discs and increase their density on the first and second tooth protection discs, thereby increasing the density of the first and second teeth.
[0020] In some embodiments that may include the above embodiments, a first slider is provided on the first tooth, the first slider is slidably disposed within a first arc-shaped groove, and the first slider includes a first fixing member disposed on the side of the first slider near the first tooth. The first fixing member is used to fix the first slider and the first tooth by passing through a first through hole. A second slider is provided on the second tooth, the second slider is slidably disposed within a second arc-shaped groove, and the second slider includes a second fixing member disposed on the side of the second slider near the second tooth. The second fixing member is used to fix the second slider and the second tooth by passing through a second through hole.
[0021] The first and second sliders can drive the first and second teeth to move. A first fixing member can fix the first tooth and the first slider together, and a second fixing member can fix the second tooth and the second slider together. The first and second fixing members fix the direction of the first and second teeth, ensuring axial movement and preventing radial movement. Simultaneously, after the first and second teeth are fixed to the first and second sliders, the distance between the first and second teeth and the end face of the motor stator core is fixed, ensuring that the height of multiple first teeth is consistent. This avoids uneven heights between adjacent first teeth, preventing the winding coil from rubbing against the first tooth when entering the first tooth protection structure, thus avoiding damage to the winding coil. Similarly, ensuring the height of multiple second teeth is consistent prevents uneven heights between adjacent second teeth, preventing the winding coil from rubbing against the second tooth when entering the second tooth protection structure, thus avoiding damage to the winding coil.
[0022] In some embodiments that may include the above-described embodiments, the first tooth protection structure further includes a first clamping member, the fixed end of which is connected to the first slider, and the clamping end of which is used to clamp the first slider to a first position on the first tooth protection disc. The second tooth protection structure further includes a second clamping member, the fixed end of which is connected to the second slider, and the clamping end of which is used to fix the second slider to a second position on the second tooth protection disc. The first clamping member and the second clamping member include a screw structure or a spring sheet structure.
[0023] The first clamping member can fix the first slider in a first position, thereby fixing the position of the first tooth. The second clamping member can fix the second slider in a second position, thereby fixing the position of the second tooth. By controlling the first and second clamping members, the positions of the first and second sliders within the first and second arc-shaped slide grooves can be changed, thereby changing the positions of the first and second teeth, so as to control the closing and retraction states of the first and second tooth protection structures.
[0024] Meanwhile, the first clamping member and the second clamping member can improve the stability of the first tooth and the second tooth, and avoid excessive squeezing force on the first tooth and the second tooth when the winding coil passes through the first tooth and the second tooth, which would cause the first tooth and the second tooth to move radially, thereby affecting the closing effect of the first tooth protection structure and the second tooth protection structure, and causing damage to the winding coil.
[0025] In some embodiments that may include the above embodiments, the installation distance between the first tooth protection structure and the second tooth protection structure is greater than or equal to 10 mm.
[0026] The installation distance between the first and second tooth protection structures is greater than or equal to 10mm. This can prevent the second tooth protection structure from losing its coil-gathering effect when the winding coil moves to the first tooth protection structure. The winding coil will then re-gather when passing the first tooth protection structure, resulting in a large squeezing force between the winding coil and the first tooth protection structure. This can easily cause damage to the winding coil and affect the insulation performance of the motor.
[0027] In some embodiments that may include the above examples, the motor winding fixture further includes a tooth guard structure distance adjustment device. This device includes a fixed rod, a first movable member, and a second movable member. One end of the first movable member is mounted on the fixed rod and moves axially along the fixed rod, while the other end is fixedly connected to the first tooth guard structure. One end of the second movable member is mounted on the fixed rod and moves axially along the fixed rod, while the other end is fixedly connected to the second tooth guard structure. The first and second movable members are fixed to the fixed rod at a preset distance, which is the installation distance between the first and second tooth guard structures.
[0028] The first moving part is fixedly connected to the first tooth protection structure, and the second moving part is fixedly connected to the second tooth protection structure. The first and second moving parts can move axially along the fixed rod, thereby changing the positions of the first and second tooth protection structures. By adjusting the positions of the first and second moving parts on the fixed rod, the installation distance between the first and second tooth protection structures, as well as the distance between the first tooth protection structure and the motor stator core, can be adjusted. This ensures the effective coil-gathering of the winding coils by the first and second tooth protection structures while reducing the volume of the motor winding fixture.
[0029] In some embodiments that may include the above embodiments, the tooth guard structure distance adjustment device includes a hydraulic adjustment device, one end of which is fixed to a first moving member, and the other end of which is fixed to a second moving member. The hydraulic adjustment device is used to adjust the interval distance between the first moving member and the second moving member.
[0030] One end of the hydraulic adjusting device is fixed to the first moving part, and the other end is fixed to the second moving part. By adjusting the distance between the two ends of the hydraulic adjusting device, the interval between the first moving part and the second moving part can be adjusted, thereby adjusting the installation distance between the first tooth protection structure and the second tooth protection structure. While ensuring the coiling effect of the first tooth protection structure and the second tooth protection structure, the volume of the motor winding fixture is reduced. Attached Figure Description
[0031] Figure 1 This is a schematic diagram of the structure of an electric motor in related technologies;
[0032] Figure 2 This is a schematic diagram of the structure of the motor winding fixture provided in the embodiments of this application;
[0033] Figure 3 A schematic diagram illustrating the winding coil winding process provided in an embodiment of this application;
[0034] Figure 4 This is a schematic diagram of the tooth guard structure distance adjustment device provided in the embodiments of this application;
[0035] Figure 5 This is a schematic diagram of the hydraulic adjusting device provided in the embodiments of this application;
[0036] Figure 6 This is a schematic diagram of the structure of the first tooth provided in an embodiment of this application;
[0037] Figure 7 This is a schematic diagram of the structure of the second tooth provided in an embodiment of this application;
[0038] Figure 8 This is a schematic diagram of the structure of the first tooth provided in an embodiment of this application;
[0039] Figure 9 This is a schematic diagram of the structure of the second tooth provided in an embodiment of this application;
[0040] Figure 10 Projection views of the first bottom guide groove and the second bottom guide groove provided in the embodiments of this application;
[0041] Figure 11 Projection view of the first guide groove and the second guide groove provided in the embodiments of this application;
[0042] Figure 12 This is a schematic diagram of the first tooth protection structure provided in the embodiments of this application;
[0043] Figure 13 This is a schematic diagram of the second tooth protection structure provided in the embodiments of this application;
[0044] Figure 14 A schematic diagram of the structure of the first fastener provided in the embodiments of this application;
[0045] Figure 15 This is a schematic diagram of the structure of the second fastener provided in an embodiment of this application;
[0046] Figure 16 This is a schematic diagram of the structure of the first clamping member provided in an embodiment of this application;
[0047] Figure 17 This is a schematic diagram of the structure of the second clamping member provided in an embodiment of this application.
[0048] Explanation of reference numerals in the attached figures:
[0049] 10: Motor; 11: Rotor; 20: Stator; 21: Iron core; 22: Winding coil slot; 23: Slot bottom paper; 30: Motor winding fixture; 31: First tooth protection structure; 32: Second tooth protection structure; 33: First moving part; 34: Second moving part; 35: Fixed rod; 36: Hydraulic rod; 37: Connecting rod; 38: Telescopic rod; 40: Tooth protection structure distance adjustment device; 41: First tooth protection disc; 411: First arc-shaped slide groove; 42: First tooth; 421: First tooth section; 422: First tail section; 43: First Lateral extension; 44: First through hole; 45: First bottom guide groove; 46: First guide groove; 47: First slider; 48: First fixing member; 49: First clamping member; 50: Hydraulic adjustment device; 51: Second toothed disc; 511: Second arc-shaped slide groove; 52: Second tooth; 521: Second tooth; 522: Second tail; 53: Second lateral extension; 54: Second through hole; 55: Second bottom guide groove; 56: Second guide groove; 57: Second slider; 58: Second fixing member; 59: Second clamping member. Detailed Implementation
[0050] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0051] Hereinafter, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature.
[0052] Furthermore, in the embodiments of this application, directional terms such as "up," "down," "left," "right," "horizontal," and "vertical" are defined relative to the orientation of the components shown in the accompanying drawings. It should be understood that these directional terms are relative concepts, used for relative description and clarification, and can change accordingly depending on the orientation of the components in the accompanying drawings.
[0053] Please refer to Figure 1 The motor 10 includes a stator 20 and a rotor 11. The stator 20 includes an iron core 21 and winding coils. The iron core 21 is provided with winding coil slots 22, and the winding coils are embedded in the winding coil slots 22. The winding coils can generate a magnetic field. When the magnetic field interacts with the magnetic field generated by the rotor 11, the rotor 11 rotates, thereby driving the motor 10 to rotate.
[0054] The stator 20 also includes slot bottom paper 23, which is disposed inside the winding coil slot 22 for insulation protection between the iron core 21 and the winding coil, preventing electrical short circuits, current leakage, and other problems, and ensuring the insulation of the motor 10. It is understood that the length of the slot bottom paper 23 can be greater than the length of the winding coil slot 22 to prevent the winding coil from rubbing against the bottom edge of the winding coil slot 22.
[0055] When assembling the winding coil, the winding coil is embedded into the winding coil slot 22. Extrusion pressure is generated between the winding coil and the winding coil slot 22, which can easily lead to damage to the winding coil and breakage of the slot bottom paper 23. The motor winding tool 30 can assist in embedding the winding coil into the winding coil slot 22, avoiding damage to the winding coil and breakage of the slot bottom paper 23.
[0056] Please refer to Figure 2 This application provides a motor winding tooling 30 for assisting in embedding the winding coil into the winding coil slot 22. The motor winding tooling 30 includes a first tooth guard structure 31, which includes a first tooth guard disc 41 and a plurality of first teeth 42. The plurality of first teeth 42 extend along the iron core 21 (…). Figure 1 The axial centerline (as shown) Figure 2 The dotted lines in the diagram are arranged around the first tooth guard plate 41 at preset intervals. The second tooth guard structure 32 includes a second tooth guard plate 51 and a plurality of second teeth 52, which are arranged around the second tooth guard plate 51 at preset intervals along the axial center line of the iron core 21.
[0057] It is understandable that the preset interval angle is the same as that of the adjacent winding coil slot 22 on the iron core 21. Figure 1 The interval angles shown are the same, so the first tooth protection structure 31 and the second tooth protection structure 32 can correspond to the iron core 21, and the winding coil can be smoothly embedded into the winding coil slot 22 through the first tooth protection structure 31 and the second tooth protection structure 32.
[0058] Please refer to Figure 3 In use, the first tooth protection structure 31 and the second tooth protection structure 32 are aligned along the axial centerline parallel to the iron core 21. Figure 3 The winding coils (with the winding direction in the middle) are arranged parallel to each other on the same side of the iron core 21. The first tooth protection structure 31 is close to the iron core 21, and the second tooth protection structure 32 is away from the iron core 21. The iron core 21, the first tooth protection structure 31, and the second tooth protection structure 32 are arranged sequentially along the axial center line of the iron core 21. The winding coil moves from bottom to top, passing through the second tooth protection structure 32 and the first tooth protection structure 31 in sequence, and finally embeds into the winding coil slot 22 of the iron core 21.
[0059] The second toothed structure 32 initially gathers the winding coil, and then the first toothed structure 31 gathers the winding coil again. After being gathered twice, the winding coil is then embedded into the winding coil slot 22. This improves the regularity of the coil embedded in the winding coil slot 22, reduces the squeezing force when the winding coil is embedded into the winding coil slot 22, and avoids damage to the winding coil and breakage of the slot bottom paper 23. This prevents direct contact between the winding coil and the winding coil slot 22, ensuring the motor 10 ( Figure 1 The insulation performance (as shown).
[0060] In the above embodiments, the installation distance L between the first tooth protection structure 31 and the second tooth protection structure 32 is greater than or equal to 10 mm. For example, the installation distance can be 10 mm, 15 mm, 20 mm, or 25 mm.
[0061] Motor winding tooling 30 ( Figure 2 As shown, during use, when the winding coil passes through the second toothed structure 32, it initially closes up. However, as the winding coil moves towards the first toothed structure 31, the closing effect gradually weakens, and the winding coil gradually disperses. Therefore, the installation distance between the first toothed structure 31 and the second toothed structure 32 should not be too long. This is to prevent the closing effect of the second toothed structure 32 from disappearing when the winding coil moves to the first toothed structure 31, causing the winding coil to close up again when passing through the first toothed structure 31. This would result in a large squeezing force of the winding coil on the first toothed structure 31, which could easily damage the winding coil and affect the insulation performance of the motor 10.
[0062] Please refer to Figure 4In the above embodiment, the motor winding fixture 30 further includes a tooth guard structure distance adjustment device 40, which includes a fixed rod 35, a first moving member 33, and a second moving member 34. One end of the first moving member 33 is disposed on the fixed rod 35 and moves axially along the fixed rod 35, and the other end of the first moving member 33 is fixedly connected to the first tooth guard structure 31. One end of the second moving member 34 is disposed on the fixed rod 35 and moves axially along the fixed rod 35, and the other end of the second moving member 34 is fixedly connected to the second tooth guard structure 32.
[0063] This application does not limit the first moving member 33, the second moving member 34, and the fixing rod 35. For example, the connection between the first moving member 33, the second moving member 34, and the fixing rod 35 can be an open ring with a bolt structure at the opening. The radius of the ring is greater than or equal to the radius of the fixing rod 35. The first moving member 33 and the second moving member 34 are slidably connected to the fixing rod 35. The bolt structure can be tightened to fix the first moving member 33 and the second moving member 34.
[0064] For example, the end faces of the first movable member 33 and the second movable member 34 that contact the fixed rod 35 are provided with threaded holes, and the fixed rod 35 is provided with a through hole. The first movable member 33 and the second movable member 34 are slidably connected to the fixed rod 35. When fixing the first movable member 33 and the second movable member 34, a screw can be passed through the through hole on the fixed rod 35, and the thread on the surface of the screw engages with the threaded hole, thereby fixing the first movable member 33 and the second movable member 34.
[0065] The first movable component 33 and the second movable component 34 are fixed on the fixed rod 35 at a preset distance, which is the installation distance between the first tooth protection structure 31 and the second tooth protection structure 32.
[0066] By adjusting the positions of the first moving part 33 and the second moving part 34 on the fixed rod 35, the installation distance between the first tooth protection structure 31 and the second tooth protection structure 32, as well as the distance between the first tooth protection structure 31 and the iron core 21, can be adjusted. While ensuring the gathering effect of the first tooth protection structure 31 and the second tooth protection structure 32 on the winding coil, the volume of the motor winding fixture 30 can be reduced.
[0067] Please refer to Figure 5 In some implementations, the tooth guard structure distance adjustment device 40 includes a hydraulic adjustment device 50, one end of which is fixed to a first moving member 33 and the other end of which is fixed to a second moving member 34. The hydraulic adjustment device 50 is used to adjust the interval distance between the first moving member 33 and the second moving member 34.
[0068] For example, the hydraulic adjusting device 50 may include a hydraulic rod 36, a connecting rod 37, and a telescopic rod 38. Both ends of the connecting rod 37 are connected to the telescopic rod 38. One end of the telescopic rod 38 is fixed to a first moving member 33, and another end of the telescopic rod 38 is fixed to a second moving member 34. When the hydraulic pressure is increased, the hydraulic rod 36 extends, causing the connecting rod 37 to move, thereby causing the telescopic rod 38 to move along the iron core 21 (…). Figure 3 The axial centerline direction of the moving part 33 (as shown) is moved, which changes the distance between the first moving part 33 and the second moving part 34.
[0069] By adjusting the distance between the two ends of the hydraulic adjusting device 50, the gap between the first moving part 33 and the second moving part 34 can be adjusted, thereby adjusting the first tooth protection structure 31. Figure 4 (as shown) and the second tooth protection structure 32 ( Figure 4 The installation spacing between the first toothed structure 31 and the second toothed structure 32 is such that, while ensuring the coil-gathering effect of the first toothed structure 31 and the second toothed structure 32, the motor winding fixture 30 is reduced. Figure 2 The volume shown is [volume].
[0070] Please refer to Figure 6 , Figure 7 , Figure 8 and Figure 9 In the above embodiment, the first tooth 42 includes a first tooth portion 421 and a first tail portion 422. The first tooth portion 421 is asymmetrically arranged along the center line of the first tooth 42. The first tooth portion 421 includes a first lateral extension portion 43, which is U-shaped and similar in shape to the winding coil slot 22. The first tail portion 422 is provided with a first through hole 44 for fixing the first tooth 42. The second tooth 52 includes a second tooth portion 521 and a second tail portion 522. The second tooth 52 is asymmetrically arranged along the center line of the second tooth 52. The second tooth portion 521 includes a second lateral extension portion 53, which is U-shaped and similar in shape to the winding coil slot 22. The second tail portion 522 is provided with a second through hole 54 for fixing the second tooth 52.
[0071] The first lateral extension 43 and the second lateral extension 53 are U-shaped, similar in shape to the winding coil slot 22. In the motor winding fixture 30 ( Figure 2 (As shown) In use, the first tooth 421 and the second tooth 521 can retract the winding coil, so that the shape of the retracted winding coil matches the winding coil slot 22 (as shown). Figure 3 The shape corresponds to that shown, which facilitates the subsequent embedding of the winding coil into the winding coil slot 22.
[0072] In the above embodiments, the second tooth 52 and the first tooth 42 have the same shape, and the area of the second tooth 52 is greater than or equal to the area of the first tooth 42.
[0073] The first tooth 42 and the second tooth 52 have the same shape, which simplifies the processing of the first tooth 42 and the second tooth 52 and reduces processing costs. The area of the second tooth 52 is larger than that of the first tooth 42, and the force-bearing area of the second tooth 52 is also larger than that of the first tooth 42. When the winding coil passes through the second protective tooth structure 32, it has not yet been closed, and the extrusion force of the winding coil on the second tooth 52 is relatively large. The larger area of the second tooth 52 can distribute the extrusion force of the winding coil, ensuring the stability of the second tooth 52 and preventing the second tooth 52 from shaking due to the extrusion force, which would affect its closing effect on the winding coil.
[0074] In the above embodiment, when the motor winding fixture 30 is used, the first lateral extension 43 of each first tooth 42 forms a first bottom guide groove 45, and the second lateral extension 53 of each second tooth 52 forms a second bottom guide groove 55. The first bottom guide groove 45 and the second bottom guide groove 55 are connected to the iron core 21 ( Figure 3 The bottom of the winding coil slot 22 on the core 21 is parallel to the axial center line of the iron core 21.
[0075] Along the axial centerline parallel to the iron core 21, the projection of the first bottom guide groove 45 is located inside the projection of the second bottom guide groove 55. Figure 10 As shown), the first bottom guide groove 45 and the second bottom guide groove 55 are used to guide the winding coil into the winding coil groove 22.
[0076] Understandably, the bottom of the winding coil slot 22 experiences significant compressive force, and the first lateral extension 43 and the second lateral extension 53 encompass the main features of the winding coil slot 22. In embodiments with a low slot fill factor (less than or equal to 50%), the winding coil can sequentially pass through the second bottom guide slot 55 and the first bottom guide slot 45, and be gathered together by both before being embedded into the winding coil slot 22. Understandably, slot fill factor refers to the proportion of space occupied by the winding coil after it is embedded in the winding coil slot 22.
[0077] The projection of the first bottom guide groove 45 is located inside the projection of the second bottom guide groove 55. It can be understood that the projected area of the first bottom guide groove 45 is less than or equal to the projected area of the second bottom guide groove 55. The second bottom guide groove 55 performs the initial gathering of the winding coil, which, while ensuring the gathering effect, avoids the possibility of excessive compressive force on the winding coil during the initial gathering due to a smaller second bottom guide groove 55, thus preventing damage to the winding coil.
[0078] In the above embodiments, when the motor winding fixture 30 is used, the first teeth 421 of two adjacent first teeth 42 surround to form a first guide groove 46, and the second teeth 521 of two adjacent second teeth 52 surround to form a second guide groove 56. It is understood that the first guide groove 46 and the second guide groove 56 encompass all the features of the winding coil slot 22, and the first guide groove 46 and the second guide groove 56 can accommodate more winding coils. In embodiments with a high slot fill factor (slot fill factor greater than or equal to 50%), the winding coil can pass sequentially through the second guide groove 56 and the first guide groove 46, and be gathered together and embedded into the winding coil slot 22.
[0079] The first guide slot 46 and the second guide slot 56 correspond to the winding coil slot 22 along a direction parallel to the axial centerline of the iron core 21. Along this direction, the projection of the first guide slot 46 lies within the projection of the second guide slot 56. Figure 11 As shown, the first guide groove 46 and the second guide groove 56 are used to guide the winding coil into the winding coil slot 22. The first guide groove 46 and the second guide groove 56 are similar to the first bottom guide groove 45 and the second bottom guide groove 55 in the above embodiment, and will not be described again here.
[0080] In the above embodiment, along the axial centerline parallel to the iron core 21, the projected area of the first guide groove 46 is 85%-95% of the projected area of the second guide groove 56. It is understood that a smaller projected area of the second guide groove 56 increases the compressive force between the winding coil and the second guide groove 56, easily leading to damage to the winding coil and affecting the insulation performance of the motor 10; a larger projected area of the second guide groove 56 weakens its gathering effect on the winding coil, resulting in greater compressive force when the winding coil passes through the first guide groove 46 and embeds into the winding coil slot 22, easily leading to damage to the winding coil and affecting the insulation performance of the motor 10.
[0081] The projected area of the first guide groove 46 is 85%-95% of the projected area of the second guide groove 56. This ensures that the second guide groove 56 can gather the winding coil while avoiding excessive squeezing pressure on the winding coil as it passes through the second guide groove 56, which could damage the winding coil.
[0082] Please refer to Figure 12 and Figure 13 In the above embodiments, the first tooth guard disc 41 includes a first arc-shaped groove 411, and the first tooth 42 moves within the first arc-shaped groove 411. The second tooth guard disc 51 includes a second arc-shaped groove 511, and the second tooth 52 moves within the second arc-shaped groove 511.
[0083] The first tooth guard disc 41 and the second tooth guard disc 51 are annular in shape. The shapes of the first arc-shaped groove 411 and the second arc-shaped groove 511 correspond to the shape of the first tooth guard disc 41, which can save the area of the first tooth guard disc 41, reduce its occupied area on the first tooth guard disc 41 and the second tooth guard disc 51, and increase its density on the first tooth guard disc 41 and the second tooth guard disc 51, thereby increasing the density of the first tooth 42 and the second tooth 52. The positions of the first arc-shaped groove 411 and the second arc-shaped groove 511 can be adjusted according to the actual position of the winding coil slot 22 on the iron core 21, so that the first tooth guard structure 31 and the second tooth guard structure 32 correspond to the winding coil slot 22, ensuring that the first tooth guard structure 31 and the second tooth guard structure 32 can guide the winding coil into the winding coil slot 22.
[0084] The first tooth 42 moves within the first arc-shaped slide groove 411, and the second tooth 52 moves within the second arc-shaped slide groove 511. The position of the first tooth 42 can be adjusted to control the closing and retraction of the first tooth protection structure 31; the position of the second tooth 52 can be adjusted to control the closing and retraction of the second tooth protection structure 32.
[0085] For example, the second tooth 52 moves to the axial centerline of the second arc-shaped groove 511 near the iron core 21. Figure 13 When the first tooth structure 31 (the dotted line in the diagram) reaches one end, the second tooth structure 32 closes to form a second bottom guide groove 55 or a second guide groove 56, thereby gathering the winding coil and guiding the winding coil to pass through the first tooth structure 31 and embed into the winding coil groove 22 ( Figure 3 (as shown) inside.
[0086] The first tooth 42 moves to the axial centerline of the first arc-shaped groove 411 near the iron core 21. Figure 12 When the first tooth structure 31 closes at one end of the dotted line in the middle, it forms the first bottom guide groove 45 or the first guide groove 46, thereby gathering the winding coil and guiding the winding coil into the winding coil groove 22.
[0087] For example, when the second tooth 52 moves to one end of the second arc-shaped groove 511 away from the axial centerline of the iron core 21, the second tooth protection structure 32 retracts. When the first tooth 42 moves to one end of the first arc-shaped groove 411 away from the axial centerline of the iron core 21, the first tooth protection structure 31 retracts.
[0088] Understandably, after the winding coil is gathered by the second toothed structure 32, it moves towards the first toothed structure 31. As the bottom of the winding coil gradually approaches the second toothed structure 32, it is easy for the winding coil to rub against or snag on the second toothed structure 32. Therefore, when the bottom of the winding coil approaches the second toothed structure 32, winding can be paused, and the second toothed structure 32 can be retracted. Similarly, when the bottom of the winding coil approaches the first toothed structure 31, winding can be paused, and the first toothed structure 31 can be retracted.
[0089] Please refer to Figure 7 , Figure 8 , Figure 14 and Figure 15 In the above embodiment, a first slider 47 is provided on the first tooth 42, and the first slider 47 is slidably disposed in the first arc-shaped sliding groove 411. Figure 12 (As shown). The first slider 47 includes a first fixing member 48, which is disposed on the side of the first slider 47 near the first tooth 42. The first fixing member 48 is used to fix the first slider 47 and the first tooth 42 through the first through hole 44. The first slider 47 and the first tooth 42 are fixed, and the first slider 47 is slidably disposed in the first arc-shaped slide groove 411, so that the first tooth 42 can move within the first arc-shaped slide groove 411.
[0090] A second slider 57 is provided on the second tooth 52, and the second slider 57 slides in the second arc-shaped groove 511. Figure 13 (As shown). The second slider 57 includes a second fixing member 58, which is disposed on the side of the second slider 57 near the second tooth 52. The second fixing member 58 is used to fix the second slider 57 and the second tooth 52 through the second through hole 54. The second slider 57 and the second tooth 52 are fixed, and the second slider 57 slides in the second arc-shaped slide groove 511, so that the second tooth 52 can move in the second arc-shaped slide groove 511.
[0091] This application embodiment does not limit the first fixing member 48 and the second fixing member 58. For example, the first slider 47 may be provided with a threaded hole on the side near the first tooth 42. The first fixing member 48 may include a screw structure. The screw passes through the first through hole 44, and the external thread on the surface of the screw cooperates with the threaded hole, thereby fixing the first slider 47 and the first tooth 42.
[0092] For example, the first fixing member 48 can also be a solid cylinder with a cross-sectional radius equal to the radius of the first through hole 44, so that the first fixing member 48 is just inserted into the first through hole 44, thereby fixing the first slider 47 and the first tooth 42.
[0093] The first fixing member 48 and the second fixing member 58 can fix the direction of the first tooth 42 and the second tooth 52, ensuring that the first tooth 42 and the second tooth 52 move axially (along the axial direction of the iron core 21) and avoid the first tooth 42 and the second tooth 52 moving radially (along the radial direction of the iron core 21). This avoids the winding coil exerting too much pressure on the first tooth 42 and the second tooth 52 during the winding process, which would cause the first tooth 42 and the second tooth 52 to shift, resulting in a weakening of the closing effect of the first tooth protection structure 31 and the second tooth protection structure 32.
[0094] The second fastener 58 is similar to the first fastener 48, and will not be described in detail here.
[0095] Meanwhile, after the first tooth 42 is fixed to the first slider 47, the distance between the first tooth 42 and the end face of the iron core 21 is fixed, which can ensure that the height of multiple first teeth 42 is consistent and avoid the inconsistency in the height of adjacent first teeth 42, which would cause the winding coil to rub against the first tooth 42 when entering the first tooth protection structure 31, resulting in damage to the winding coil; after the second tooth 52 is fixed to the second slider 57, the distance between the second tooth 52 and the end face of the iron core 21 is fixed, which can ensure that the height of multiple second teeth 52 is consistent and avoid the inconsistency in the height of adjacent second teeth 52, which would cause the winding coil to rub against the second tooth 52 when entering the second tooth protection structure 32, resulting in damage to the winding coil.
[0096] Please refer to Figure 16 and Figure 17 In the above embodiments, the first tooth protection structure 31 ( Figure 12 (As shown) It also includes a first clamping member 49, the fixed end of which is connected to the first slider 47, and the clamping end of the first clamping member 49 is used to clamp the first slider 47 to the first position of the first tooth protection plate 41. The second tooth protection structure 32 ( Figure 13 (As shown) includes a second clamping member 59, the fixed end of which is connected to the second slider 57. The clamping end of the second clamping member 59 is used to fix the second slider 57 to a second position on the second toothed disc 51. The first clamping member 49 and the second clamping member 59 include screw structures or spring clip structures.
[0097] In an embodiment where the first clamping member 49 includes a screw structure, a threaded hole is provided on the side of the first slider 47 near the first arc-shaped slide groove 411. When the first slider 47 moves to the first position, a through hole is provided at the corresponding position of the first arc-shaped slide groove 411. The screw can pass through the through hole and engage with the threaded hole to fix the first slider 47 in the first position.
[0098] In an embodiment where the first clamping member 49 includes a spring sheet structure, one end of the spring sheet structure is connected to the first slider 47. The spring sheet presses against the first slider 47. When the first slider 47 moves to the first position, the spring sheet can be released. The other end of the spring sheet contacts the first arc-shaped slide groove 411, thereby fixing the position of the first slider 47.
[0099] The second clamping member 59 is similar to the first clamping member 49, and will not be described in detail here.
[0100] By controlling the first clamping member 49 and the second clamping member 59, the positions of the first slider 47 and the second slider 57 within the first arc-shaped slide groove 411 and the second arc-shaped slide groove 511 can be changed, thereby changing the position of the first tooth 42. Figure 12 (as shown) and second tooth 52 ( Figure 13 The position (as shown) is used to control the closing and retraction of the first tooth protection structure 31 and the second tooth protection structure 32.
[0101] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the embodiments of this application, and are not intended to limit them; although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some or all of the technical features therein; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.
Claims
1. A motor winding tooling, characterized in that, The motor winding fixture includes: The first tooth protection structure includes a first tooth protection disc and a plurality of first teeth, which are arranged around the first tooth protection disc at a preset interval angle along the axial center line of the motor stator core. The second tooth protection structure includes a second tooth protection disc and a plurality of second teeth, which are arranged around the second tooth protection disc at preset intervals along the axial center line of the motor stator core. When the motor winding tool is used to embed the winding wire into the motor stator core, the first tooth protection structure and the second tooth protection structure are arranged parallel to each other on the same side of the motor stator core along a direction parallel to the axial center line of the motor stator core. The first tooth protection structure is close to the motor stator core, and the second tooth protection structure is far away from the motor stator core.
2. The motor winding fixture according to claim 1, characterized in that, The first tooth includes a first tooth portion and a first tail portion, wherein the first tooth portion is asymmetrically arranged along the center line of the first tooth. The first tooth includes a first lateral extension portion, which is U-shaped, and the first tail portion is provided with a first through hole for fixing the first tooth. The second tooth includes a second tooth portion and a second tail portion, wherein the second tooth portion is asymmetrically arranged along the center line of the second tooth. The second tooth includes a second lateral extension, which is U-shaped, and the second tail is provided with a second through hole for fixing the second tooth.
3. The motor winding fixture according to claim 1 or 2, characterized in that, The second tooth has the same shape as the first tooth, and the area of the second tooth is greater than or equal to the area of the first tooth.
4. The motor winding fixture according to claim 2, characterized in that, When the motor winding tooling is used to embed the winding wire into the stator core of the motor, the first lateral extension of each first tooth forms a first bottom guide groove, and the second lateral extension of each second tooth forms a second bottom guide groove. The first bottom guide groove and the second bottom guide groove correspond to the bottom of the winding coil groove on the motor stator core along the direction parallel to the axial center line of the motor stator core; Along the axial centerline parallel to the motor stator core, the projection of the first bottom guide groove is located inside the projection of the second bottom guide groove. The first bottom guide groove and the second bottom guide groove are used to guide the motor stator winding coil into the winding coil slot on the motor stator core.
5. The motor winding fixture according to claim 2, characterized in that, When the motor winding tooling is used to embed the winding wire into the stator core of the motor, the first teeth of two adjacent first teeth form a first guide groove, and the second teeth of two adjacent second teeth form a second guide groove. The first guide slot and the second guide slot correspond to the winding coil slots on the motor stator core along a direction parallel to the axial center line of the motor stator core; Along the axial centerline parallel to the motor stator core, the projection of the first guide slot is located inside the projection of the second guide slot. The first guide slot and the second guide slot are used to guide the motor stator winding coil into the winding coil slot on the motor stator core.
6. The motor winding fixture according to claim 5, characterized in that, Along the direction parallel to the axial centerline of the motor stator core, the projected area of the first guide groove is 85%-95% of the projected area of the second guide groove.
7. The motor winding fixture according to claim 2, characterized in that, The first tooth protection disc includes a first arc-shaped groove, within which the first tooth moves; The second toothed disc includes a second arc-shaped groove, within which the second tooth moves.
8. The motor winding fixture according to claim 7, characterized in that, The first tooth is provided with a first slider, which slides within the first arc-shaped groove; The first slider includes a first fixing member, which is disposed on the side of the first slider near the first tooth. The first fixing member is used to fix the first slider and the first tooth through the first through hole. The second tooth is provided with a second slider, which slides within the second arc-shaped groove; The second slider includes a second fixing member, which is disposed on the side of the second slider near the second tooth. The second fixing member is used to fix the second slider and the second tooth through the second through hole.
9. The motor winding fixture according to claim 8, characterized in that, The first tooth protection structure further includes a first clamping member, the fixed end of the first clamping member being connected to the first slider, and the clamping end of the first clamping member being used to clamp the first slider to a first position of the first tooth protection disc; The second tooth protection structure also includes a second clamping member, the fixed end of which is connected to the second slider, and the clamping end of which is used to fix the second slider to the second position of the second tooth protection disc; The first clamping member and the second clamping member include screw structures or spring clip structures.
10. The motor winding fixture according to claim 1, characterized in that, The installation distance between the first tooth protection structure and the second tooth protection structure is greater than or equal to 10mm.
11. The motor winding fixture according to claim 10, characterized in that, The motor winding fixture also includes a tooth protection structure distance adjustment device, which includes a fixed rod, a first moving part and a second moving part. One end of the first moving part is disposed on the fixed rod and moves along the axial direction of the fixed rod, and the other end of the first moving part is fixedly connected to the first tooth protection structure. One end of the second movable component is disposed on the fixed rod and moves along the axial direction of the fixed rod, and the other end of the second movable component is fixedly connected to the second tooth protection structure; The first movable component and the second movable component are fixed on the fixed rod at a preset distance, wherein the preset distance is the installation spacing between the first tooth protection structure and the second tooth protection structure.
12. The motor winding fixture according to claim 11, characterized in that, The tooth protection structure distance adjustment device includes a hydraulic adjustment device. One end of the hydraulic adjustment device is fixed to the first moving part, and the other end of the hydraulic adjustment device is fixed to the second moving part. The hydraulic adjustment device is used to adjust the interval distance between the first moving part and the second moving part.