A winding structure for an electronically commutated motor

Abstract

The utility model provides a kind of electronic commutating motor winding structure, comprising: rotor;Stator, rotor is set in stator inside, and the side of stator towards rotor is provided with multiple winding posts, and winding slot is formed between adjacent two winding posts;Insulator structure, insulator structure is installed at both ends of stator;Among them, insulator structure is provided with insulating paper buckle, and insulating paper buckle is used to fix insulating paper in winding slot.The utility model solves the technical problem that traditional electronic commutating motor is fixed on winding post when insulating paper, to operator accuracy requirement is high and the technical problem of big operation failure repair difficulty.The utility model is fixed by the way of buckle clamping by setting insulating paper buckle on the insulator structure of both ends of stator, realizes to insulating paper high efficiency, reliable.

Description

Technical Field

[0001] This utility model relates to the field of electronic commutation motor technology, and more specifically, to an electronic commutation motor winding structure. Background Technology

[0002] With the continuous advancement of technology, electronically commutated motors are playing an increasingly important role in our daily lives. Traditional electronically commutated motors are manufactured by coating the winding post surface with an adhesive and then attaching insulating paper to the winding post. However, accurately and reliably attaching the insulating paper to the adhesive-coated winding post requires extremely high precision from the operator. Furthermore, if an error occurs during operation, the difficulty of repair is relatively high.

[0003] The problem is that when fixing the insulating paper to the winding post in a traditional electronic commutator motor, the operator's precision is required and the repair of operational errors is difficult. Summary of the Invention

[0004] This invention solves the technical problem of high precision requirements and difficulty in correcting operational errors when fixing insulating paper to the winding column in traditional electronic commutator motors. This invention achieves efficient and reliable fixing of the insulating paper by setting insulating paper clips on the insulating structure at both ends of the stator and engaging them.

[0005] To solve the above problems, this utility model provides an electronic commutation motor winding structure, including: a rotor; a stator, wherein the rotor is disposed inside the stator, and a plurality of winding posts are disposed on the side of the stator facing the rotor, and a winding slot is formed between two adjacent winding posts; an insulator structure, wherein the insulator structure is installed at both ends of the stator; wherein the insulator structure is provided with insulating paper clips, which are used to fix the insulating paper in the winding slot.

[0006] Compared with existing technologies, the technical effects achieved by this solution are as follows: The insulating paper clips make it easier to fix the insulating paper in a designated position, reducing the complexity of manual operation, improving production efficiency, and lowering manufacturing costs. Furthermore, fixing the insulating paper within the winding slot with the clips ensures that short circuits or leakage will not occur in the winding slot due to heat or current penetration during motor operation. This effectively reduces the failure rate caused by insulation failure, thereby extending the overall service life and maintenance convenience of the motor, and improving its safety and reliability. Additionally, the insulating paper clips effectively prevent the insulating paper from shifting due to vibration or other factors during motor operation, ensuring the stability and uniformity of the winding, thus improving the overall performance of the motor.

[0007] In one possible design, the insulator structure includes an insulating mounting plate and multiple insulating mounting protrusions connected to the insulating mounting plate, wherein, when the insulator structure is mounted on the stator, the insulating mounting protrusions are attached to the winding post.

[0008] Compared with existing technologies, the technical effects achieved by adopting this technical solution are as follows: by directly attaching the insulating mounting protrusion to the winding post, an effective mechanical support and insulation barrier can be formed, which further enhances the insulation performance of the motor and reduces the risk of short circuit and leakage.

[0009] In one possible design, when the insulator structure is mounted on the stator, the insulation mounting plate portion is placed within the winding slot.

[0010] Compared with existing technologies, the technical effects achieved by this solution are as follows: By placing the insulating mounting plate partially within the winding slot, a larger area of ​​insulation protection can be provided, reducing contact between the winding posts and other metal parts or insulating materials. This significantly reduces the risk of leakage and short circuits, improves overall insulation performance, and helps the motor maintain good insulation performance during high-voltage operation, ensuring safe motor operation. The embedded setting of the insulating mounting plate enhances the structural stability of the winding slot, helping to prevent insulation layer deformation caused by vibration or mechanical stress, thereby improving motor reliability. Simultaneously, the combination of the insulating mounting plate and the insulating mounting protrusion not only improves the insulation effect but also simplifies the later maintenance and repair process of the motor, making it easier to inspect and replace insulation materials when necessary.

[0011] In one possible design, the insulating mounting protrusion includes a fitting portion and a limiting portion; wherein the fitting portion fits against the winding post, and the limiting portion is located on the side of the fitting portion away from the insulating mounting plate.

[0012] Compared with existing technologies, the technical advantages achieved by this solution are as follows: the bonding part directly adheres to the winding post, ensuring good electrical contact and stable mechanical connection, thereby improving the stability of the insulation mounting protrusion and reducing loosening or detachment caused by vibration or external forces. The restraining part enhances the structural stability of the entire insulation mounting protrusion, effectively coping with tension and other mechanical stresses during the winding process, thus improving the durability and reliability of the assembly.

[0013] In one possible design, the limiting part is provided with an insulating paper clip on the side facing the insulating mounting plate.

[0014] Compared with existing technologies, the technical effects achieved by this solution are as follows: the insulating paper clips effectively fix the insulating paper in place, preventing it from shifting or falling off during assembly or operation. This fixation ensures that the insulating material is always in optimal insulation condition, thereby improving the safety and reliability of the motor. Furthermore, by effectively fixing the insulating paper, the risk of electrical leakage or short circuits caused by loose insulating paper is reduced, enhancing overall insulation performance and improving the motor's safe operation under high voltage. Using clips to fix the insulating paper simplifies the assembly process, reduces reliance on manual operation, lowers the error rate during assembly, and improves production efficiency.

[0015] In one possible design, the insulating mounting plate faces the rotor and is provided with insulating paper clips corresponding to the limiting part.

[0016] Compared with existing technologies, the technical advantages achieved by this solution are as follows: Insulating paper clips are installed between the insulating mounting plate and the limiting part, ensuring that the insulating paper within the entire winding groove is firmly fixed and preventing slippage or detachment due to vibration or rotation, thus significantly enhancing the reliability of the insulating material. Ensuring the insulating paper is fixed between the insulating mounting plate and the limiting part helps form a more robust overall structure, reducing deformation or damage to the insulating paper caused by mechanical stress and vibration.

[0017] In one possible design, the insulating paper clip includes a connecting part and a suspended part, with the connecting part mounted on the insulating structure and one end of the suspended part connected to the connecting part.

[0018] Compared to existing technologies, this technical solution achieves the following advantages: The suspended portion provides greater flexibility, adapting to insulating papers of different thicknesses and shapes as needed, making assembly more convenient and expanding its applicability. Furthermore, the direct connection between the connecting part and the insulating structure ensures good contact between the clips and the insulating paper, enhancing the fixing effect and preventing loosening or displacement of the insulating paper during use, thereby improving insulation performance. It also makes the replacement and maintenance of the insulating paper more convenient, as the suspended portion allows for easy disassembly and replacement when needed, reducing maintenance time and costs. Simultaneously, the suspended portion helps distribute the pressure applied to the insulating paper, avoiding damage or deformation of the insulating material due to concentrated stress, thus extending the service life of the insulating paper.

[0019] In one possible design, when the insulating paper clip is installed on the insulating structure, one end of the suspended portion of the insulating paper clip faces the winding post.

[0020] Compared with existing technologies, the technical effects achieved by this solution are as follows: The suspended portion is positioned towards the winding post, allowing the insulating paper to adhere tightly to the winding post under the action of the clips. This effectively prevents the insulating paper from moving due to mechanical vibration or other factors, improving the stability and durability of the insulation layer. The clamping structure achieved through the insulating paper clips at both ends of the stator ensures uniform distribution of the insulating paper, enhancing the overall insulation performance of the motor. Furthermore, the stable insulating paper effectively prevents current leakage, reduces the risk of short circuits, and improves the operational safety of the motor.

[0021] In one possible design, the outer circumferential edge of the rotor has multiple grooves for mounting magnets.

[0022] Compared to existing technologies, this technical solution achieves the following advantages: By providing a more stable and reliable installation position through the grooves, the magnets are firmly fixed to the rotor, preventing them from detaching under high-speed rotation or vibration conditions, thus improving system safety and reliability. Simultaneously, by precisely setting the shape and position of the grooves, the magnetic field distribution on the rotor's outer edge can be optimized, improving motor efficiency. Furthermore, a more uniform magnetic field distribution helps improve rotor torque and power output. The grooves also facilitate the installation and replacement of the magnets, allowing maintenance personnel to quickly disassemble and replace them when needed, reducing maintenance time and costs.

[0023] In one possible design, several heat dissipation openings are provided inside the rotor.

[0024] Compared to existing technologies, the technical benefits of this solution are as follows: By incorporating heat dissipation openings, airflow inside the rotor is effectively increased, promoting heat dissipation and reducing the rotor's operating temperature. This helps maintain stable motor temperature under high loads, preventing performance degradation and damage caused by overheating. Furthermore, the heat dissipation openings provide a larger surface area, enhancing heat exchange efficiency with the external environment, thereby improving cooling and extending equipment lifespan. Simultaneously, the heat dissipation openings reduce rotor material usage; by removing unnecessary materials without compromising structural strength, rotor weight reduction is achieved. This results in a lighter overall motor weight, increasing power density and energy efficiency. Moreover, reducing rotor weight helps lower its moment of inertia, thereby improving starting response speed and acceleration performance. Attached Figure Description

[0025] Figure 1 A schematic diagram of the winding structure of an electronically commutated motor provided in this embodiment of the utility model. Figure 1 ; Figure 2 A schematic diagram of the winding structure of an electronically commutated motor provided in this embodiment of the utility model. Figure 2 ; Figure 3 for Figure 2 Enlarged view of region A in the middle; Figure 4 A schematic diagram of the winding structure of an electronically commutated motor provided in this embodiment of the utility model. Figure 3 ; Figure 5 A schematic diagram of the winding structure of an electronically commutated motor provided in this embodiment of the utility model. Figure 4 .

[0026] Explanation of reference numerals in the attached figures: 11-Rotor; 12-Stator; 13-Winding post; 14-Winding slot; 15-Insulator structure; 16-Insulating paper clip; 17-Insulating mounting plate; 18-Insulating mounting protrusion; 19-Fitting part; 20-Restricting part; 21-Connecting part; 22-Suspended part; 23-Groove; 24-Magnetic tile; 25-Heat dissipation opening. Detailed Implementation

[0027] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0028] See Figures 1 to 5 This utility model provides an electronic commutation motor winding structure, including: a rotor 11; a stator 12, wherein the rotor 11 is disposed inside the stator 12, and a plurality of winding posts 13 are disposed on the side of the stator 12 facing the rotor 11, and a winding groove 14 is formed between two adjacent winding posts 13; an insulator structure 15, wherein the insulator structure 15 is provided with an insulating paper clip 16, which is used to fix the insulating paper in the winding groove 14.

[0029] Specifically, in this embodiment, the electronically commutated motor includes two core components: a rotor 11 and a stator 12. The rotor 11 is installed inside the stator 12 and is supported by bearings, allowing it to rotate freely. The stator 12 is the stationary part of the motor, with winding posts 13 on its inner side used to wind copper wire. When energized, it generates a rotating magnetic field, providing a magnetic circuit path. The rotor 11 is the rotating part of the motor. Magnets 24 mounted on the rotor 11 generate a fixed magnetic field, which interacts with the rotating magnetic field generated by the stator 12, producing torque to drive the rotor 11 to rotate. The insulator structure 15 includes a first insulator and a second insulator. The first insulator is installed at one end of the stator 12, and the second insulator is installed at the other end. Through the cooperation of the two insulators, the stator and the copper wire wound on the winding posts 13 can be physically isolated, preventing the copper wire from directly contacting the conductive winding posts 13 and causing a short circuit. Insulating paper clips 16 are provided on both the first and second insulators to fix the insulating paper in the winding slots 14. When the insulating paper is fixed inside the winding groove 14, the insulating paper is laid on the groove wall and bottom to isolate the copper wire from the winding post 13 and prevent short circuit.

[0030] In one embodiment of this application, the insulator structure 15 includes an insulating mounting plate 17 and a plurality of insulating mounting protrusions 18, the plurality of insulating mounting protrusions 18 being connected to the insulating mounting plate 17, wherein when the insulator structure 15 is mounted on the stator 12, the insulating mounting protrusions 18 are attached to the winding post 13.

[0031] Specifically, in this embodiment, the number of insulating mounting protrusions 18 corresponds to the number of winding posts 13, and the insulating mounting protrusions 18 at both ends of the stator 12 are respectively attached to the winding posts 13 of the stator 12 from both sides. The insulating mounting plate 17 is used to connect multiple insulating mounting protrusions 18 at the same end together.

[0032] In one embodiment of this application, when the insulator structure 15 is installed on the stator 12, the insulating mounting plate 17 is partially placed in the winding groove 14.

[0033] Specifically, in this embodiment, when the insulator structure 15 is installed on the stator 12, the insulating mounting plate 17 is partially embedded in the winding groove 14, and works together with the insulating mounting protrusion 18 to provide an insulating barrier between the copper wire and the winding post 13.

[0034] In one embodiment of this application, the insulating mounting protrusion 18 includes a fitting portion 19 and a limiting portion 20; wherein the fitting portion 19 fits against the winding post 13, and the limiting portion 20 is disposed on the side of the fitting portion 19 away from the insulating mounting plate 17.

[0035] Specifically, in this embodiment, the fitting portion 19 of the insulating mounting protrusion 18 fits against the axial end of the winding post 13, and the limiting portion 20 is provided on the side of the fitting portion 19 away from the insulating mounting plate 17, so as to prevent the copper wire from directly contacting the winding post 13 on the side away from the insulating mounting plate 17.

[0036] In one embodiment of this application, an insulating paper clip 16 is provided on the side of the limiting part 20 facing the insulating mounting plate 17.

[0037] Specifically, in this embodiment, the limiting part 20 is also provided with an insulating paper clip 16 on the side facing the insulating mounting plate 17, which is used to fix the insulating paper in all directions within the winding groove 14 to prevent the insulating paper from shifting during assembly or operation. Specifically, the limiting part 20 has an insulating paper clip 16 on each side of the winding post 13 on the side facing the insulating mounting plate 17.

[0038] In one embodiment of this application, an insulating paper clip 16 is provided on the side of the insulating mounting plate 17 facing the rotor 11, corresponding to the limiting part 20.

[0039] Specifically, in this embodiment, the side of the insulating mounting plate 17 facing the rotor 11 is provided with a corresponding number of insulating paper clips 16 for each limiting part 20. Within a winding groove 14, two insulating paper clips 16 are provided on the side of the insulating mounting plate 17 facing the rotor 11. In other embodiments, the number and position of the insulating paper clips 16 on the side of the insulating mounting plate 17 facing the rotor 11 may not correspond to the limiting part 20.

[0040] In one embodiment of this application, the insulating paper clip 16 includes a connecting portion 21 and a suspended portion 22. The connecting portion 21 is installed on the insulating structure 15, and one end of the suspended portion 22 is connected to the connecting portion 21.

[0041] Specifically, in this embodiment, the connecting part 21 is fixed to the insulating structure 15, and one end of the suspended part 22 is connected to the connecting part 21. The suspended part 22 is used to directly fix and snap the insulating paper to prevent the insulating paper from loosening or shifting during use. The connecting part 21 and the suspended part 22 are integrally formed with the insulating structure 15.

[0042] In one embodiment of this application, when the insulating paper clip 16 is disposed on the insulating structure 15, one end of the suspended portion 22 of the insulating paper clip 16 faces the winding post 13.

[0043] Specifically, in this embodiment, an insulator structure 15 is provided at both ends of the winding post 13, so that the suspended part 22 of the insulating paper clip 16 is set toward the winding post 13. When the insulating paper clips 16 at both ends of the winding post 13 cooperate, the structure setting of clamping at both ends can be realized, making the fixing of the insulating paper more stable.

[0044] In one embodiment of this application, a plurality of grooves 23 are provided circumferentially on the outer edge of the rotor 11 for mounting the magnet 24.

[0045] Specifically, in this embodiment, a groove 23 is provided on the outer circumferential side of the rotor 11. By providing the groove 23, a more stable and reliable installation position can be provided for the magnetic tile 24, ensuring that the magnetic tile 24 is firmly fixed on the rotor 11.

[0046] In one embodiment of this application, a plurality of heat dissipation openings 25 are provided inside the rotor 11.

[0047] Specifically, in this embodiment, the rotor 11 is provided with ten heat dissipation openings 25, which are arranged circumferentially around the axis of the rotor 11. The specific shape and distribution of the openings ensure that adding new openings will not affect the overall structure of the rotor 11. Furthermore, by providing ten heat dissipation openings 25, the weight of the rotor 11 is reduced, thereby improving the motor's response speed and acceleration performance.

[0048] While the present invention has been disclosed above, it is not limited thereto. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the present invention; therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.

Claims

1. A winding structure for an electronically commutated motor, characterized in that, include: Rotor (11); The stator (12) has a rotor (11) disposed inside the stator (12), and the stator (12) has a plurality of winding posts (13) on the side facing the rotor (11), and a winding groove (14) is formed between two adjacent winding posts (13). An insulator structure (15) is installed at both ends of the stator (12); The insulator structure (15) is provided with an insulating paper clip (16), which is used to fix the insulating paper in the winding groove (14).

2. The electronically commutated motor winding structure according to claim 1, characterized in that, The insulator structure (15) includes an insulating mounting plate (17) and a plurality of insulating mounting protrusions (18), the plurality of insulating mounting protrusions (18) being connected to the insulating mounting plate (17). When the insulating structure (15) is installed on the stator (12), the insulating mounting protrusion (18) is attached to the winding post (13).

3. The electronically commutated motor winding structure according to claim 2, characterized in that, When the insulating structure (15) is installed on the stator (12), the insulating mounting plate (17) is partially placed in the winding groove (14).

4. The electronically commutated motor winding structure according to claim 2, characterized in that, The insulating mounting protrusion (18) includes a fitting portion (19) and a limiting portion (20). The fitting part (19) is fitted to the winding post (13), and the limiting part (20) is disposed on the side of the fitting part (19) away from the insulating mounting plate (17).

5. The electronically commutated motor winding structure according to claim 4, characterized in that, The limiting part (20) is provided with an insulating paper clip (16) on the side facing the insulating mounting plate (17).

6. The electronically commutated motor winding structure according to claim 5, characterized in that, The insulating mounting plate (17) facing the rotor (11) has an insulating paper clip (16) provided on the side corresponding to the limiting part (20).

7. The electronically commutated motor winding structure according to claim 1, characterized in that, The insulating paper clip (16) includes a connecting part (21) and a suspended part (22). The connecting part (21) is installed on the insulating structure (15), and one end of the suspended part (22) is connected to the connecting part (21).

8. The electronically commutated motor winding structure according to claim 7, characterized in that, When the insulating paper clip (16) is disposed on the insulating structure (15), one end of the suspended part (22) of the insulating paper clip (16) faces the winding post (13).

9. The electronically commutated motor winding structure according to claim 1, characterized in that, The rotor (11) has multiple grooves (23) circumferentially arranged on its outer edge for mounting magnetic tiles (24).

10. The electronically commutated motor winding structure according to any one of claims 1-9, characterized in that, The rotor (11) has several heat dissipation openings (25).

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