Motor magnetic tile fixing frame and motor

Abstract

The utility model relates to power motor technical field, especially a kind of motor magnetic tile fixing frame and motor, including circular support, the one end of the circular support is provided with magnetic tile assembly groove, the magnetic tile assembly groove is provided with multiple, multiple the magnetic tile assembly groove is evenly distributed in the one end of circular support, and the separating strip is set between the adjacent two magnetic tile assembly grooves, the one end of the circular support is provided with exhaust groove away from magnetic tile assembly groove, the exhaust groove is provided with multiple, multiple the exhaust groove is evenly distributed in the one end of circular support;Assembly support table is set between the adjacent two exhaust grooves.The utility model is accurate to magnetic tile positioning, and fixed effect is good, improves the stability and overall performance of motor magnetic circuit system.

Description

Technical Field

[0001] This utility model relates to the field of power motor technology, and in particular to a motor magnet fixing bracket and a motor. Background Technology

[0002] In traditional motor structures, the method of fixing rotor magnets is usually quite simple. For example, the magnets are directly glued to the surface of the rotor core with adhesive, or they are constrained by mechanical structures such as metal clamps or pressure plates.

[0003] Traditional fixing methods have many limitations in practical applications: First, adhesive fixing has high process requirements, and the thickness and uniformity of the adhesive layer are not easy to control, which may lead to poor installation accuracy of the magnet and uneven air gap, thereby affecting the distribution of the motor's magnetic field and increasing torque pulsation and electromagnetic noise; Second, the adhesive may age and fail under long-term high temperature and vibration conditions, causing the magnet to loosen and threatening the motor's operational safety; Third, although simple mechanical clamping methods have improved reliability, they are often complex in structure and have many parts, increasing the manufacturing cost and assembly difficulty of the motor, and it is difficult to achieve precise circumferential positioning of the magnet. Utility Model Content

[0004] To solve the above problems, this utility model provides a motor magnetic tile fixing frame and motor that provides precise positioning and good fixing effect of magnetic tiles, thereby improving the stability and overall performance of the motor magnetic circuit system.

[0005] The technical solution adopted by this utility model is as follows: a motor magnetic tile fixing bracket, including a circular bracket, one end of which is provided with a magnetic tile assembly groove, and multiple magnetic tile assembly grooves are provided, which are evenly distributed in a circumferential direction at one end of the circular bracket. A separator strip is provided between two adjacent magnetic tile assembly grooves. An exhaust groove is provided at the end of the circular bracket opposite to the magnetic tile assembly groove, and multiple exhaust grooves are provided, which are evenly distributed in a circumferential direction at one end of the circular bracket. An assembly support platform is provided between two adjacent exhaust grooves.

[0006] A further improvement to the above solution is that the thickness of the annular support is less than the thickness of the separator.

[0007] A further improvement to the above solution is that the partition strip is arranged opposite to the assembly support platform, and one end of the partition strip extends to the assembly support platform.

[0008] A further improvement to the above solution is that a support step is provided on the inner circumference of the annular bracket, the support step is located at the bottom of the annular bracket, and one side of the assembly support platform extends to the bottom of the support step.

[0009] A further improvement to the above scheme is that multiple magnetic tile assembly slots are arranged opposite to multiple exhaust slots.

[0010] A further improvement to the above solution is that the end of the separator strip is provided with a guide arc surface for guiding the magnetic tile when it is installed into the magnetic tile assembly groove.

[0011] A further improvement to the above solution is that the outer periphery of the annular bracket is provided with an assembly surface, and the partition strip is provided with an arc surface, the curvature of which is the same as that of the assembly surface.

[0012] A further improvement to the above scheme is that the assembly surface is perpendicular to the bottom surface of the assembly support platform.

[0013] An electric motor includes a motor magnet holder, wherein the motor is provided with a plurality of rotor magnets, and the plurality of rotor magnets are respectively installed in a magnet assembly slot.

[0014] A further improvement to the above solution is that the motor is provided with a motor housing, and the annular bracket is used to fix the rotor magnet inside the motor housing.

[0015] A further improvement to the above solution is that the motor is provided with a motor housing, and the annular bracket is used to fix the rotor magnet inside the motor housing.

[0016] The beneficial effects of this utility model are: Compared to existing motor magnet fixing methods, this invention achieves efficient and reliable fixing of the magnets through a circular bracket and its specifically arranged magnet mounting slots, separators, venting slots, and mounting support platform. Multiple circumferentially distributed magnet mounting slots provide precise positioning and installation space for the magnets. The size of each magnet mounting slot matches the magnet, ensuring that the magnet can be stably embedded and held in a preset circumferential and radial position. The separators between adjacent magnet mounting slots enhance the local structural strength of the circular bracket in the magnet mounting area, improving overall deformation resistance. Multiple venting slots are circumferentially arranged on the end of the circular bracket opposite to the magnet mounting slots. These venting slots, while ensuring the necessary structural strength of the bracket, significantly reduce the amount of material used in non-load-bearing areas, effectively reducing the overall weight of the fixing frame and contributing to the goal of motor lightweighting. Simultaneously, the venting slots are located at the bottom of the circular bracket, forming an exhaust channel at the bottom, preventing black adhesive from overflowing onto the magnet surface and causing scratches during magnet installation. The assembly support platform forms several solid support points in the circumferential direction, ensuring that the fixing frame can be stably assembled and connected with other components. This utility model provides precise positioning of the magnetic tiles, good fixing effect, good heat dissipation, and improves the stability and overall performance of the motor magnetic circuit system. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of the motor magnet fixing bracket of this utility model; Figure 2 for Figure 1 A three-dimensional schematic diagram of the magnetic tile fixing bracket of the motor from another perspective; Figure 3 for Figure 1 A schematic diagram of the rotor structure of the electric motor; Figure 4 for Figure 3 An explosion diagram.

[0018] Explanation of reference numerals in the attached drawings: 10. Circular bracket; 1. Magnet assembly groove; 2. Separator strip; 21. Guide arc surface; 22. Arc surface; 3. Exhaust groove; 4. Assembly support platform; 5. Support step; 6. Assembly surface; 7. Rotor magnet; 8. Motor housing. Detailed Implementation

[0019] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0020] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Figures 1-4 As shown, in one embodiment of this utility model, a motor magnetic tile fixing bracket is provided, including an annular bracket 10. One end of the annular bracket 10 is provided with a magnetic tile assembly groove 1. Multiple magnetic tile assembly grooves 1 are provided and are evenly distributed in a circumferential direction at one end of the annular bracket 10. A separator strip 2 is provided between two adjacent magnetic tile assembly grooves 1. An exhaust groove 3 is provided at the end of the annular bracket 10 opposite to the magnetic tile assembly groove 1. Multiple exhaust grooves 3 are provided and are evenly distributed in a circumferential direction at one end of the annular bracket 10. An assembly support platform 4 is provided between two adjacent exhaust grooves 3.

[0022] Specifically, the annular bracket 10 and its specifically arranged magnetic tile assembly slots 1, partition bars 2, venting grooves 3, and assembly support platform 4 achieve efficient and reliable fixing of the magnetic tiles. Multiple circumferentially distributed magnetic tile assembly slots 1 provide precise positioning and installation space for the magnetic tiles. The dimensions of each magnetic tile assembly slot 1 match the magnetic tile, ensuring that the magnetic tile can be stably embedded and maintained in the preset circumferential and radial positions. The partition bars 2 set between adjacent magnetic tile assembly slots 1 ensure the precise arrangement of the magnetic tile array and the uniformity of the air gap; the partition bars 2 themselves also enhance the local structural strength of the annular bracket 10 in the magnetic tile installation area, improving the overall resistance to deformation. Multiple venting grooves 3 are circumferentially arranged on the annular bracket 10 at the end opposite to the magnetic tile assembly slots 1. While ensuring the necessary structural strength of the bracket, the venting grooves 3 significantly reduce the amount of material used in non-load-bearing areas, effectively reducing the overall weight of the fixing frame and contributing to the lightweighting of the motor. Meanwhile, the exhaust groove 3 is located at the bottom of the annular bracket 10, forming an exhaust channel. This prevents black adhesive from overflowing and scratching the surface of the magnetic tile during installation. An assembly support platform 4 is provided between adjacent exhaust grooves 3, forming several support points in the circumferential direction to ensure the mounting bracket can be stably assembled and connected with other components. This embodiment provides precise positioning and good fixing of the magnetic tile, improving the stability and overall performance of the motor magnetic circuit system.

[0023] In this embodiment, the thickness of the annular support 10 is less than the thickness of the partition strip 2. By setting the thickness of the annular support 10 to be less than the thickness of the partition strip 2, a stepped non-uniform thickness structure is formed. The thinner annular support 10 effectively reduces the overall weight. At the same time, when the magnetic tile is installed, the gas can be better discharged through the exhaust groove 3.

[0024] In this embodiment, as Figures 1-2 As shown, a support step 5 is provided on the inner circumference of the annular bracket 10. The support step 5 is located at the bottom of the annular bracket 10, and one side of the mounting support platform 4 extends to the bottom of the support step 5. Specifically, the extension of one side of the mounting support platform 4 to the bottom of the support step 5 forms a continuous rigid support structure from the outer edge to the inner circumference of the bracket. The installation stress borne by the mounting support platform 4 and the radial force generated during motor operation are effectively transferred and distributed to a wider inner circumferential structural area of ​​the annular bracket 10 through the support step 5, thereby enhancing the overall load-bearing capacity and structural stability of the fixing frame.

[0025] In this embodiment, as Figures 1-2 and Figure 4As shown, multiple magnetic tile assembly slots 1 and multiple exhaust slots 3 are arranged opposite to each other, and one end of the partition strip 2 extends to the assembly support platform 4. Specifically, the partition strip 2 is opposite to the assembly support platform 4, and one end of the partition strip 2 extends to the assembly support platform 4. The axially opposite arrangement of the magnetic tile assembly slots 1 and the exhaust slots 3 ensures that the magnetic tile installation area and the lightweight reduction area correspond precisely in space.

[0026] In this embodiment, as Figures 1-2 As shown, the end of the separator 2 is provided with a guide arc surface 21 for guiding the magnetic tile when it is installed into the magnetic tile assembly slot 1. Specifically, the guide arc surface 21 effectively solves the problems of jamming, scratching, or misalignment that may occur during manual or automated assembly of the magnetic tile. When the edge of the magnetic tile contacts the end of the separator 2, the smooth arc surface can guide the magnetic tile to slide smoothly into the preset magnetic tile assembly slot 1, greatly reducing assembly resistance, simplifying the operation process, and thus improving assembly efficiency, which is especially beneficial for achieving high-speed and precise assembly in automated production lines.

[0027] In this embodiment, the outer periphery of the annular bracket 10 is provided with a mounting surface 6, and the partition strip 2 is provided with an arc surface 22, the curvature of which is the same as that of the mounting surface 6. This ensures a smooth and continuous transition of the curved surface from the mounting surface 6 to the partition strip 2, eliminating steps or abrupt changes. This allows the annular bracket 10 to achieve smooth guidance and assembly when pressed into the motor housing 8, reducing assembly resistance and the risk of frictional damage.

[0028] In this embodiment, the mounting surface 6 is perpendicular to the bottom surface of the mounting support platform 4. The mounting surface 6 is in contact with the inner wall of the motor housing 8, while the bottom surface of the mounting support platform 4 is in contact with the bottom of the motor housing 8. This perpendicular relationship ensures that the fixing frame can be accurately positioned in the preset axial and radial positions, effectively avoiding installation tilt and ensuring the uniformity of the air gap between the magnet and the motor rotor.

[0029] See Figures 3-4 As shown, an electric motor includes a motor magnet holder and a plurality of rotor magnets 7, which are respectively installed in each magnet assembly slot 1.

[0030] In this embodiment, the motor is equipped with a motor housing 8, and an annular bracket 10 is used to fix the rotor magnet 7 inside the motor housing 8. Specifically, by utilizing the standardized, high-precision magnet assembly slot 1 provided by the magnet fixing bracket, it is ensured that each rotor magnet 7 can be quickly and accurately installed into the preset circumferential and radial positions. This ensures the consistency of the pole arc angle and the uniformity of the air gap between the rotor magnets 7, thereby effectively optimizing the magnetic field waveform of the motor, significantly reducing torque pulsation and electromagnetic noise, and improving the smoothness of motor operation. The multiple dispersed magnets are integrated into a robust integral component, and then a stable connection is achieved with the motor housing 8 through its outer peripheral structure (such as the assembly surface 6 mentioned above). This simplifies the assembly process of the magnets inside the motor housing 8 and improves production efficiency. When the motor rotates at high speed or is subjected to load impact, it can effectively transfer and distribute electromagnetic force, centrifugal force, and other loads from the magnets to the motor housing 8 evenly, avoiding stress concentration, thereby ensuring the positional stability and connection reliability of the magnets under harsh working conditions, and greatly extending the service life of the motor.

[0031] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A motor magnet holder, characterized in that: The device includes a circular support frame, one end of which is provided with a magnetic tile assembly groove. Multiple magnetic tile assembly grooves are arranged circumferentially on one end of the circular support frame. A separator strip separates adjacent magnetic tile assembly grooves. Multiple exhaust grooves are provided at the end of the circular support frame opposite to the magnetic tile assembly groove, also arranged circumferentially on one end of the circular support frame. An assembly support platform is provided between adjacent exhaust grooves.

2. The motor magnet fixing bracket according to claim 1, characterized in that: The thickness of the annular support is less than the thickness of the separator.

3. The motor magnet fixing bracket according to claim 1, characterized in that: The partition strip is disposed opposite to the assembly support platform, and one end of the partition strip extends to the assembly support platform.

4. The motor magnet fixing bracket according to claim 1, characterized in that: The inner circumference of the annular bracket is provided with a support step, the support step is located at the bottom of the annular bracket, and one side of the assembly support platform extends to the bottom of the support step.

5. The motor magnet fixing bracket according to claim 1, characterized in that: Multiple magnetic tile assembly slots are arranged opposite to multiple exhaust slots.

6. The motor magnet fixing bracket according to claim 1, characterized in that: The end of the separator is provided with a guide arc surface for guiding the magnetic tile when it is installed into the magnetic tile assembly groove.

7. The motor magnet fixing bracket according to claim 1, characterized in that: The outer periphery of the annular bracket is provided with an assembly surface, and the partition strip is provided with an arc surface, the curvature of which is the same as that of the assembly surface.

8. The motor magnet fixing bracket according to claim 7, characterized in that: The assembly surface is perpendicular to the bottom surface of the assembly support platform.

9. An electric motor, characterized in that: The motor magnetic tile fixing frame includes any one of claims 1 to 8, wherein the motor is provided with a plurality of rotor magnetic tiles, and the plurality of rotor magnetic tiles are respectively installed in each magnetic tile assembly slot.

10. The motor according to claim 9, characterized in that: The motor is provided with a motor housing, and the annular bracket is used to fix the rotor magnet inside the motor housing.

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