Motorcycle permanent magnet motor stator

Abstract

The utility model relates to motor technical field especially relates to a motorcycle permanent magnet motor stator, solved the prior art in the whole fixed structure because of stator, coil damage needs whole replacement, leads to the problem of high maintenance cost, poor maintainability. A motorcycle permanent magnet motor stator, including stator core and a plurality of winding post, the outer ring of stator core is set up with a plurality of insertion slot, the one end of every winding post all is connected with the insertion slot compatible insertion board, the inner ring of stator core is equipped with the limit structure, and the limit structure is detachably connected with adjacent insertion board, and both sides of stator core can detachably connect with the heat conduction ring board. Through modularization insertion structure realizes the independent assembly and replacement of winding post, avoids the whole scrapping because of single coil damage, reduces the maintenance cost and promotes maintenance efficiency.

Description

Technical Field

[0001] This utility model relates to the field of motor technology, and in particular to a stator for a motorcycle permanent magnet motor. Background Technology

[0002] The stator of a motorcycle permanent magnet motor is one of the core components of a motorcycle generator system. It typically consists of a mounting cylinder, winding posts, iron core, and coils. Its main function is to generate a stable magnetic field during motor operation, thereby achieving efficient conversion between electrical energy and mechanical energy. Because it plays a fundamental role in several key functions such as vehicle starting, lighting, and charging, high requirements are placed on the structural design, heat dissipation performance, and stability of the motorcycle permanent magnet motor stator. Especially under high-speed, high-load operating environments, the stator's heat dissipation capacity and maintainability directly affect the overall performance and service life of the motor.

[0003] Utility model patent CN 213846353 U discloses a stator for a motorcycle magneto, including a mounting cylinder and several winding posts. The mounting cylinder has coaxial mounting holes, and its inner wall has a heat dissipation structure. This structure includes an inner cylinder, forming a closed heat dissipation cavity with an inlet and an outlet. This structure effectively controls the motor's operating temperature and improves operational stability by directly removing heat generated between the coil and the iron core at the winding posts through the circulation of coolant within the heat dissipation cavity. However, in practical applications, while this structure has certain advantages in heat dissipation, the stator is a fixed structure. During production, multiple sets of coils need to be wound and assembled together. If one set of coils fails or is damaged, the entire stator will malfunction and must be replaced, increasing maintenance costs and reducing product maintainability and production efficiency.

[0004] Therefore, to address the shortcomings of existing technologies, we urgently need a motorcycle permanent magnet motor stator to solve this problem. This stator should be able to achieve modular design of the coil assembly while ensuring good heat dissipation, facilitating partial replacement and maintenance, significantly improving production efficiency and operational flexibility, better meeting the motorcycle motor industry's development needs for high-performance, low-cost, and easy-to-maintain products, and providing strong support for the continuous progress of related fields. Utility Model Content

[0005] The purpose of this utility model is to provide a permanent magnet motor stator for motorcycles, which solves the problem that in the prior art, since the stator is a fixed structure as a whole, multiple sets of coils need to be wound and assembled in a concentrated manner during the production process. Once one set of coils fails or is damaged, the entire stator will not be able to work properly and must be replaced as a whole. This not only increases maintenance costs but also reduces the maintainability and production efficiency of the product.

[0006] To achieve the above objectives, this utility model provides a motorcycle permanent magnet motor stator, including a stator core and several winding posts. The outer ring of the stator core is provided with several insertion slots, and one end of each winding post is connected to an insertion plate that matches the insertion slot.

[0007] The inner ring of the stator core is provided with several limiting structures with one end penetrating through the stator core. The limiting structures are detachably connected to the adjacent plug-in plates. Heat-conducting ring plates can be detachably connected to both sides of the stator core.

[0008] The insertion slot is T-shaped, and the top of the insertion plate is fixedly connected to the end of the winding column.

[0009] The limiting structure includes a positioning screw, the end of which is threaded through the stator core and connected to the side wall of the plug plate.

[0010] The stator core has two symmetrically arranged heat-conducting inner ring cylinders inside, and the two heat-conducting inner ring cylinders are respectively connected to the adjacent heat-conducting ring plate on the side that is far away from each other.

[0011] The heat-conducting ring plate has several fastening screw holes on one side edge, and each fastening screw hole is threaded with a fastening screw. One end of the fastening screw is connected to the adjacent plug plate.

[0012] The heat-conducting ring plate has several heat dissipation grooves on one side, and the outer ring of the heat-conducting inner ring cylinder has several through grooves, the width of which is greater than the diameter of the positioning screw.

[0013] This utility model discloses a motorcycle permanent magnet motor stator. Due to its plug-in design, when a winding post or coil fails, only the corresponding component needs to be replaced, rather than the entire stator, thus significantly reducing maintenance costs and improving production efficiency. Furthermore, the heat-conducting ring plates located on both sides of the stator core effectively enhance heat dissipation performance, solving the problem of motor performance degradation caused by poor heat dissipation in traditional designs. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0015] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model.

[0016] Figure 2 This is a schematic diagram of the stator core and winding column of an embodiment of the present invention.

[0017] Figure 3 This is a schematic diagram of the fastening screw hole and heat dissipation groove in an embodiment of the present invention.

[0018] Figure 4 This is a schematic diagram of the plug-in plate and positioning screw according to an embodiment of the present utility model.

[0019] Figure 5 This is a schematic diagram of the stator core and the insertion slot according to an embodiment of the present invention.

[0020] In the diagram: 1. Stator core; 2. Winding column; 3. Heat-conducting ring plate; 4. Heat-conducting inner ring cylinder; 5. Through slot; 6. Heat dissipation slot; 7. Fastening screw hole; 8. Fastening screw; 9. Positioning screw; 10. Insertion plate; 11. Insertion slot. Detailed Implementation

[0021] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0022] Example 1

[0023] Please see Figure 1-5 As shown, a motorcycle permanent magnet motor stator of this embodiment includes a stator core 1 and a plurality of winding posts 2. The outer ring of the stator core 1 is provided with a plurality of insertion slots 11, and one end of each winding post 2 is connected to an insertion plate 10 adapted to the insertion slot 11.

[0024] The inner ring of the stator core 1 is provided with several limiting structures with one end penetrating through the stator core 1. The limiting structures are detachably connected to the adjacent plug-in plate 10. Heat-conducting ring plates 3 can be detachably connected to both sides of the stator core 1.

[0025] First, according to the design in the technical solution, a stator core 1 is prepared, with several insertion slots 11 formed on the outer ring of the stator core. Then, winding posts 2 are fabricated, each with an insertion plate 10 at one end that matches the insertion slot 11. Next, the winding posts 2 are inserted into the corresponding insertion slots 11 on the stator core 1 via their insertion plates 10, completing the initial assembly. Limiting structures are set on the inner ring of the stator core 1, with one end penetrating the stator core 1 and detachably connected to adjacent insertion plates 10, ensuring the winding posts 2 are stable and easy to replace. Finally, heat-conducting ring plates 3 are installed on both sides of the stator core 1 to further enhance the overall heat dissipation effect.

[0026] Example 2

[0027] Please see Figure 1-5As shown in the figure, in this embodiment of a motorcycle permanent magnet motor stator, the insertion slot 11 is T-shaped, and the top of the insertion plate 10 is fixedly connected to the end of the winding column 2. Specifically, by setting the insertion slot 11 to be T-shaped, and by matching the structure of the top of the insertion plate 10 being fixedly connected to the end of the winding column 2, the T-shaped insertion slot 11 can guide and limit the insertion plate 10 during the process of inserting the winding column 2 into the stator core 1, preventing it from shifting or falling off during the installation process, thereby improving the assembly accuracy and connection stability.

[0028] Two heat-conducting inner ring cylinders 4 are symmetrically arranged inside the stator core 1. The two heat-conducting inner ring cylinders 4 are connected to the adjacent heat-conducting ring plates 3 on opposite sides. Specifically, by symmetrically arranging the heat-conducting inner ring cylinders 4 inside the stator core 1 and connecting them to the heat-conducting ring plates 3 on both sides, during motor operation, heat can be quickly conducted from the central area of ​​the stator core 1 to the heat-conducting ring plates 3 through the heat-conducting inner ring cylinders 4, and then diffused outward from the heat-conducting ring plates 3 to dissipate heat, thereby improving the overall heat dissipation efficiency and balancing the temperature distribution.

[0029] Several heat dissipation grooves 6 are provided on one side of the heat-conducting ring plate 3, and several through grooves 5 are provided on the outer ring of the heat-conducting inner ring cylinder 4. The width of the through grooves 5 is greater than the diameter of the positioning screw 9. Specifically, by providing heat dissipation grooves 6 on the heat-conducting ring plate 3 and through grooves 5 on the outer ring of the heat-conducting inner ring cylinder 4, and by providing through grooves 5 with a width greater than the diameter of the positioning screw 9, the heat dissipation grooves 6 increase the surface area of ​​the heat-conducting ring plate 3 to improve the air convection heat dissipation efficiency, while the through grooves 5 help reduce the obstruction of heat in the heat conduction path, thereby achieving the effect of further optimizing heat dissipation performance and improving cooling efficiency.

[0030] Example 3

[0031] Please see Figure 1-5 As shown, in this embodiment, a motorcycle permanent magnet motor stator has a limiting structure including a positioning screw 9. The end of the positioning screw 9 is threaded through the stator core 1 and connected to the side wall of the plug plate 10. Specifically, by including the positioning screw 9 in the limiting structure, and setting the end of the positioning screw 9 to be threaded through the stator core 1 and connected to the side wall of the plug plate 10, after the initial insertion of the plug plate 10 and the plug slot 11 is completed, the positioning screw 9 can be tightened to make it abut against the side of the plug plate 10, thereby further fixing the winding column 2, achieving the effect of enhancing the overall structural stability and preventing loosening during operation.

[0032] Several fastening screw holes 7 are provided on one side edge of the heat-conducting ring plate 3. Each fastening screw hole 7 is threaded with a fastening screw 8. One end of the fastening screw 8 is connected to the adjacent plug plate 10. Specifically, by cooperating with the fastening screw 7 and the fastening screw 8 on the edge of the heat-conducting ring plate 3, and with one end of the fastening screw 8 connected to the plug plate 10, when installing the heat-conducting ring plate 3, the heat-conducting ring plate 3, the stator core 1 and the winding column assembly can be integrated by tightening the fastening screw 8. This enhances the connection strength between the components and the continuity of the heat conduction path, thereby improving the structural stability and auxiliary heat dissipation capacity.

[0033] The workflow is as follows: First, prepare the stator core structure—the stator core 1. Its outer ring is machined with several T-shaped insertion slots 11 for insertion into the insertion plates 10 connected to the ends of the winding posts 2. Because the insertion slots 11 are T-shaped, the insertion plates 10 have guiding and limiting functions during insertion, ensuring smooth assembly and preventing displacement or detachment. Next, fabricate multiple winding posts 2, each with a matching insertion plate 10 fixedly connected to one end. Then, these winding posts 2 are sequentially inserted into the insertion slots 11 on the outer ring of the stator core 1 via the insertion plates 10, completing the initial assembly.

[0034] A limiting structure is provided in the inner ring of the stator core 1. This structure includes a positioning screw 9, one end of which passes through the stator core 1 and is threadedly connected to the side wall of the adjacent plug plate 10. After the winding column 2 is plugged in, the positioning screw 9 is tightened to apply lateral pressure to the plug plate 10, thereby further securing the winding column 2 and preventing it from loosening or falling off due to vibration during operation, thus enhancing the stability and reliability of the overall structure.

[0035] In addition, two heat-conducting inner ring cylinders 4 are symmetrically arranged inside the stator core 1, and are connected to the heat-conducting ring plates 3 on both sides to form a complete heat conduction path. When the motor is running, heat is rapidly conducted from the central area of ​​the stator core through the heat-conducting inner ring cylinders 4 to the heat-conducting ring plates 3, and then diffused outward through the heat-conducting ring plates 3 to achieve efficient heat dissipation. In order to further enhance the integrity of the structure and the thermal conductivity, multiple fastening screw holes 7 are opened on one side edge of the heat-conducting ring plate 3. Each fastening screw hole 7 is equipped with a fastening screw 8, and one end of the fastening screw 8 is connected to the adjacent plug plate 10. This not only makes the heat-conducting ring plate 3, the stator core 1 and the winding column assembly form an integrated structure, but also enhances the connection strength between the components and ensures the continuity of the heat conduction path.

[0036] Meanwhile, multiple heat dissipation grooves 6 are provided on one side surface of the heat-conducting ring plate 3 to increase the surface area and improve air convection efficiency. On the outer ring of the heat-conducting inner ring cylinder 4, several through grooves 5 are provided. The width of the through grooves 5 is greater than the diameter of the positioning screw 9. This design not only meets the need for the positioning screw 9 to be installed and fixed, but also avoids the through grooves 5 from obstructing the heat conduction path, thereby further improving the heat dissipation performance and cooling efficiency.

[0037] The beneficial effects are that this technical solution, through optimized stator structure design, solves the problems of low modularity, high maintenance costs, and insufficient heat dissipation in traditional motorcycle permanent magnet motor stators. Specifically, by adopting a plug-in winding column 2 in conjunction with the stator core 1, combined with the structural design of the T-shaped plug slot 11 and the plug plate 10, the winding column 2 can be quickly disassembled and replaced. If a coil component is damaged, local repair can be completed without replacing the entire stator, greatly reducing maintenance costs and improving production efficiency. At the same time, the plug plate 10 is secondary fixed by the positioning screw 9 in the limiting structure, which significantly enhances the stability of the structure during operation and effectively prevents loosening caused by vibration. In terms of heat dissipation, the combined design of the heat-conducting inner ring cylinder 4 and the heat-conducting ring plate 3 creates a highly efficient heat conduction channel, allowing heat to be quickly conducted from the center of the stator to the external environment, avoiding performance degradation caused by local overheating. The heat dissipation grooves 6 on the heat-conducting ring plate 3 further increase the heat dissipation area and improve air convection efficiency, thereby achieving faster and more uniform heat dissipation. Meanwhile, the through-groove 5 design on the outer ring of the inner heat-conducting ring 4 not only facilitates the installation of the positioning screw 9 but also reduces the resistance of heat in the heat conduction path, helping to maintain a uniform temperature distribution. The fastening screw holes 7 and fastening screws 8 set on the edge of the heat-conducting ring plate 3 not only improve the overall rigidity of the structure but also strengthen the connection strength between components and the continuity of the heat conduction path, further enhancing the stability and heat dissipation efficiency of the system. In summary, this motorcycle permanent magnet motor stator, through the synergistic effect of modular plug-in structure, limiting and fixing structure, double-sided heat conduction structure, and auxiliary heat dissipation structure, not only achieves good maintainability and modular assembly capability but also significantly improves heat dissipation performance and operational stability. It is particularly suitable for motorcycle motor systems under complex operating conditions such as high speed and high load, perfectly meeting the current industry's urgent need for high-performance, low-cost, and easy-to-maintain products, and possesses good application prospects and promotional value.

[0038] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that implementing all or part of the above embodiments and making equivalent changes in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A motorcycle permanent magnet motor stator, characterized in that, include: The stator core and several winding posts are provided. The outer ring of the stator core is provided with several insertion slots. One end of each winding post is connected to an insertion plate that is compatible with the insertion slot. The inner ring of the stator core is provided with several limiting structures with one end penetrating through the stator core. The limiting structures are detachably connected to the adjacent plug-in plates. Heat-conducting ring plates can be detachably connected to both sides of the stator core.

2. The motorcycle permanent magnet motor stator according to claim 1, characterized in that, The insertion slot is T-shaped, and the top of the insertion plate is fixedly connected to the end of the winding column.

3. The motorcycle permanent magnet motor stator according to claim 1, characterized in that, The limiting structure includes a positioning screw, the end of which is threaded through the stator core and connected to the side wall of the plug plate.

4. A motorcycle permanent magnet motor stator according to claim 2, characterized in that, The stator core has two symmetrically arranged heat-conducting inner ring cylinders inside, and the two heat-conducting inner ring cylinders are respectively connected to the adjacent heat-conducting ring plate on the side that is far away from each other.

5. A motorcycle permanent magnet motor stator according to claim 3, characterized in that, Several fastening screw holes are provided on one side edge of the heat-conducting ring plate. Each fastening screw hole is threaded with a fastening screw, and one end of the fastening screw is connected to the adjacent plug plate.

6. A motorcycle permanent magnet motor stator according to claim 4, characterized in that, The heat-conducting ring plate has several heat dissipation grooves on one side, and the outer ring of the heat-conducting inner ring cylinder has several through grooves, the width of which is greater than the diameter of the positioning screw.

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