Motor and washing machine

Abstract

The utility model discloses a motor. The motor is used for a washing machine. The motor comprises a stator, a rotor and a supporting leg part. The stator comprises a stator iron core and a plastic package shell which is coated on the stator iron core, and the plastic package shell is made of a first material. The rotor is rotatably arranged in the stator core. The supporting leg part is close to the output end of the rotor and is detachably connected with the plastic package shell, the supporting leg part is made of a second material, and the strength of the second material is larger than that of the first material. According to the motor provided by the embodiment of the invention, the plastic package shell and the supporting leg part are separately processed and formed and are detachably connected, so that the plastic package shell and the supporting leg part can be made of materials with different strengths, and the strength of the second material for manufacturing the supporting leg part is greater than that of the first material for manufacturing the plastic package shell; therefore, the material cost of the driving motor is saved while the structural strength of the supporting leg component is improved.

Description

Technical Field

[0001] The present application relates to the technical field of household appliances, and more specifically, to a motor and a washing machine. Background Art

[0002] The motor of the related art includes a plastic-encapsulated shell, which includes support feet and is fixed to the device using the motor through the support feet. As the use requirements increase, the weight of the motor is getting heavier, and the support strength requirements of the support feet are also getting higher and higher. Among them, since the support feet close to the output end of the rotor also need to bear the belt tension received by the output end pulley, the support foot strength requirements here are the greatest. Therefore, the plastic-encapsulated shell needs to be made of a stronger material. However, the higher the strength of the material, the higher the cost, which leads to higher and higher costs for the plastic-encapsulated shell, and thus increases the cost of the motor. Utility Model Content

[0003] Embodiments of the present application provide a motor and a washing machine.

[0004] The motor according to the embodiment of the present application includes:

[0005] The stator comprises a stator core and a plastic-encapsulated shell overmolded on the stator core, wherein the plastic-encapsulated shell is made of a first material;

[0006] A rotor rotatably disposed in the stator core;

[0007] A supporting foot component is close to the output end of the rotor and is detachably connected to the plastic package shell. The supporting foot component is made of a second material, and the strength of the second material is greater than that of the first material.

[0008] In the motor of the embodiment of the present application, by separately processing and forming the plastic shell and the supporting foot component and detachably connecting them, it is achieved that the plastic shell and the supporting foot component can be made of materials with different strengths, so that the strength of the second material used to make the supporting foot component is greater than the strength of the first material used to make the plastic shell, thereby improving the structural strength of the supporting foot component while saving the material cost of the drive motor.

[0009] In some embodiments, the plastic shell is formed with a mounting seat, the mounting seat includes a supporting surface, the supporting surface is basically perpendicular to the axial direction of the motor, the supporting foot component includes a bearing surface that cooperates with the supporting surface, and the supporting foot component is fixed to the plastic shell by bearing against the supporting surface.

[0010] In this way, the supporting surface cooperates with the supporting surface to achieve the fixation of the supporting foot component in the axial direction of the motor, thereby ensuring the stability and reliability of the motor fixation.

[0011] In some embodiments, the mounting seat includes a mounting surface, which is an outer cylindrical surface that is basically coaxial with the axial direction of the motor. The supporting foot component includes a retaining ring surface that cooperates with the mounting surface, and the retaining ring surface is an inner cylindrical surface. The supporting foot component is fixed to the plastic shell by the cooperation between the retaining ring surface and the mounting surface.

[0012] In this way, the mounting surface cooperates with the clamping ring surface to achieve fixation of the support foot component in the radial direction of the motor, thereby ensuring stability and reliability of motor fixation.

[0013] In some embodiments, the mounting base includes a first positioning structure formed on the supporting surface, and the supporting foot component includes a second positioning structure formed on the supporting surface, and the first positioning structure cooperates with the second positioning structure to limit the rotation of the supporting foot component relative to the plastic shell.

[0014] In this way, the first positioning structure cooperates with the second positioning structure to limit the rotation of the supporting foot component relative to the plastic package housing, thereby constraining the supporting foot component and ensuring the stability and reliability of the motor fixation.

[0015] In some embodiments, the first positioning structure is a plurality of positioning columns extending upward from the support surface, and the second positioning structure is a plurality of positioning holes formed on the bearing surface. The plurality of positioning columns are arranged along a circumferential direction and correspond to the plurality of positioning holes.

[0016] In this way, the first positioning structure is a positioning column, and the second positioning structure is a positioning hole corresponding to the positioning column, which is beneficial to reducing the production cost of the motor.

[0017] In some embodiments, the arc angle of the retaining ring surface ranges from 90° to 180°.

[0018] In this case, if the curvature range of the retaining ring surface is less than 90°, the retaining ring surface will be too small, resulting in several types of stress, affecting the service life and reliability of the support foot component. If the curvature range of the retaining ring surface is greater than 180°, the increased retaining ring surface has extended to the upper half of the installation surface, and the increased portion of the retaining ring surface cannot play a load-bearing role, so increasing the curvature of the retaining ring surface has no beneficial effect. In addition, since the arc formed by the retaining ring surface is a superior arc at this time, it can only be installed along the axial direction of the motor drive shaft during installation, which increases the difficulty of installation, and continuing to increase the curvature of the retaining ring surface will further waste raw materials. Therefore, the curvature range of the retaining ring surface should be less than 180°.

[0019] In some embodiments, the plastic shell includes a first fastening structure, the supporting foot component includes a second fastening structure, the motor includes an end cover and a fastener, and the fastener passes through the end cover and the second fastening structure and is fastened to the first fastening structure to fix the end cover and the supporting foot component to the plastic shell.

[0020] In this way, the support foot component and the plastic package shell are detachably connected, which is convenient for maintenance and replacement of the support foot component and helps to save the maintenance cost of the drive motor.

[0021] In some embodiments, the supporting foot component includes a connecting portion and two supporting feet, the connecting portion is connected to the plastic package shell, and the two supporting feet extend outward from both ends of the connecting portion.

[0022] In this way, providing two supporting feet can make the motor more stably fixed, and the two supporting feet are connected by the connecting part to further enhance the structural strength.

[0023] In some embodiments, a fixing hole is formed at the end of the supporting foot.

[0024] In this way, the fixing hole is used to fix the fixed support foot component at its installation position to achieve the installation of the drive motor.

[0025] A washing machine in another embodiment of the present application comprises the motor described in the above claims.

[0026] Additional aspects and advantages of the embodiments of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the embodiments of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0028] Figure 1 is a schematic structural diagram of a motor according to an embodiment of the present application;

[0029] Figure 2 is a partial structural schematic diagram of a motor according to an embodiment of the present application;

[0030] Figure 3 is a schematic structural diagram of a support foot component according to an embodiment of the present application;

[0031] Figure 4 It is an assembly diagram of the motor according to the embodiment of the present application.

[0032] Description of the main component symbols: motor 100, stator 10, plastic shell 11, mounting seat 111, support surface 112, mounting surface 113, first positioning structure 114, first fastening structure 115, supporting foot component 12, bearing surface 121, retaining ring surface 122, second positioning structure 123, second fastening structure 124, supporting foot 125, fixing hole 1251, reinforcing boss 1252, connecting part 126, end cover 20, fastener 30, rotor 40. DETAILED DESCRIPTION

[0033] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention. In the description of the present invention, it is necessary to understand that the orientation or position relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0034] The disclosure herein provides many different embodiments or examples for realizing different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described herein. Of course, they are merely examples, and the purpose is not to limit the present invention. In addition, the present invention may repeat reference numerals and / or reference letters in different examples, and such repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides various specific examples of processes and materials, but those of ordinary skill in the art may appreciate the application of other processes and / or the use of other materials.

[0035] A washing machine is a cleaning appliance that uses electrical energy to generate mechanical action to wash clothes. There are many types of washing machines, and the common washing machines include pulsator washing machines and drum washing machines. Among them, the motor of both pulsator washing machines and drum washing machines is one of the core components of the washing machine.

[0036] The working principle of the motor is to input electrical energy into the motor through the power supply system, convert the electrical energy into mechanical energy, drive the washing tub or washing shaft to rotate, thereby completing the actions of washing, rinsing and drying. The performance of the motor directly affects the washing effect and operating stability of the washing machine.

[0037] The motor of the related art includes a plastic housing, which includes support feet and is fixed to the device using the motor through the support feet. As the use requirements increase, the weight of the motor is getting heavier, and the support strength requirements of the support feet are also getting higher and higher. Therefore, the plastic housing needs to be made of a stronger material. However, the higher the strength of the material, the higher the cost, which leads to higher and higher costs of the plastic housing, and then increases the cost of the motor.

[0038] See also Figure 1 A washing machine according to an embodiment of the present application includes a motor 100, the motor 100 includes a stator 10, a rotor 40 and a support leg component 12. The stator includes a stator core and a plastic-encapsulated shell 11 encapsulated with the stator core, and the plastic-encapsulated shell 11 is made of a first material. The rotor 40 is rotatably disposed in the stator core. The support leg component 12 is close to the output end of the rotor 40 and is detachably connected to the plastic-encapsulated shell 11, and the support leg component 12 is made of a second material, and the strength of the second material is greater than the strength of the first material.

[0039] In the motor 100 of the embodiment of the present application, by separately processing the plastic shell 11 and the supporting foot component 12 and detachably connecting them, it is achieved that the plastic shell 11 and the supporting foot component 12 can be made of materials with different strengths, so that the strength of the second material for making the supporting foot component 12 is greater than the strength of the first material for making the plastic shell 11, thereby improving the structural strength of the supporting foot component 12 while saving the material cost of the drive motor 100.

[0040] Specifically, the plastic housing 11 refers to a housing for fixing and protecting the motor 100. Its main functions are dustproof, noiseproof, and waterproof, thereby protecting the electrical and mechanical components inside the motor 100 from physical and chemical damage from the outside, and also plays a role in maintaining the overall rigidity and stable operation of the motor 100. Its design, manufacture, and selection need to be carried out according to the specific use environment and requirements of the motor 100 to ensure the normal operation of the motor 100 and extend the service life of the motor 100.

[0041] The shell is usually made of plastic. The main reasons for choosing a plastic shell are that, first, the density of plastic is relatively low, so compared with metal materials, the motor 100 with a plastic shell is lighter. This lightweight design helps to reduce the weight of the entire motor 100, making it easier to transport and install. Second, the price of plastic raw materials is relatively low, and the manufacturing cost is also low. This makes the plastic shell an economical and practical choice in the manufacture of the motor 100, which helps to reduce production costs. Third, plastic has good machinability and can be used to manufacture shells of various shapes, whether simple geometric shapes or complex curved shapes. This provides greater flexibility in the design of the motor 100, and the shape of the shell can be customized according to actual needs. Fourth, plastic has good insulation properties and is widely used in the electrical industry. The use of plastic material in the motor 100 shell can effectively prevent the electrical part from contacting with external conductive objects, thereby improving the safety of the motor 100. Fifth, the plastic shell can withstand chemical corrosion such as acid and alkali, and has good chemical stability. This allows the motor 100 to maintain stable performance even in harsh working environments.

[0042] The support foot component 12 is a mechanical component used to support and fix the motor. When the motor 100 is operating normally, the high-speed rotation of the rotor 40 of the motor 100 will generate inertia force. If there is no support foot component 12 to support and fix, the motor 100 will shake, which will not only cause machine noise, but also accelerate the damage of the motor 100 and shorten its service life. Therefore, the support foot component 12 plays a key role in ensuring the normal operation of the motor 100.

[0043] Strength refers to the material strength of the second material and the first material, and refers to the ability of the material to resist damage under external force. When a material is subjected to external force, stress will be generated inside it. As the external force increases, the stress will increase accordingly until the binding force between the particles inside the material is insufficient to resist the external force, and the material will be destroyed. It mainly includes tensile strength, compressive strength, bending strength, shear strength, etc. These strength indicators reflect the performance of the material under different stress modes.

[0044] See also Figure 2 and Figure 4 In some embodiments, the plastic shell 11 is formed with a mounting seat 111, and the mounting seat 111 includes a supporting surface 112, and the supporting surface 112 is basically perpendicular to the axial direction of the motor 100. The supporting foot component 12 includes a bearing surface 121 that cooperates with the supporting surface 112, and the supporting foot component 12 is fixed to the plastic shell 11 by the bearing surface 121 bearing against the supporting surface 112.

[0045] In this way, the supporting surface 121 cooperates with the supporting surface 112 to fix the supporting foot component 12 in the axial direction of the motor 100 , thereby ensuring the stability and reliability of the fixing of the motor 100 .

[0046] Specifically, the stator 10 has an installation cavity for installing the rotor 40 of the motor 100, and the installation cavity has an opening for installing or removing the rotor 40. The opening is set on the end face of the plastic-encapsulated shell 11. When viewed along the axial direction of the output shaft of the motor 100, the plane where the support surface 112 is located is lower than the plane where the end face is located. Further, the surface of the support foot component 12 away from the bearing surface 121 is a first plane. When the support foot component 12 is fixed on the plastic-encapsulated shell 11 through the bearing surface 121 bearing against the support surface 112, the first plane is coplanar with the end face. In this embodiment, the planes where the support surface 112 and the bearing surface 121 are located are both perpendicular to the axial direction of the motor 100.

[0047] See also Figure 2 and Figure 3 In some embodiments, the mounting seat 111 includes a mounting surface 113, which is an outer cylindrical surface that is substantially coaxial with the axial direction of the motor 100. The supporting foot component 12 includes a retaining ring surface 122 that cooperates with the mounting surface 113, and the retaining ring surface 122 is an inner cylindrical surface. The supporting foot component 12 is fixed to the plastic package shell 11 through the cooperation between the retaining ring surface 122 and the mounting surface 113.

[0048] In this way, the mounting surface 113 cooperates with the snap ring surface 122 to fix the support foot component 12 in the radial direction of the motor 100 , thereby ensuring the stability and reliability of the fixation of the motor 100 .

[0049] Specifically, the radius of the cylindrical surface where the retaining ring surface 122 is located is equal to the radius of the cylindrical surface where the mounting surface 113 is located, and the width of the retaining ring surface 122 and the mounting surface 113 is the same.

[0050] See also Figure 2 and Figure 4 In some embodiments, the mounting base 111 includes a first positioning structure 114 formed on the supporting surface 112, and the supporting foot component 12 includes a second positioning structure 123 formed on the supporting surface 121. The first positioning structure 114 and the second positioning structure 123 cooperate to limit the rotation of the supporting foot component 12 relative to the plastic shell 11.

[0051] In this way, the first positioning structure 114 cooperates with the second positioning structure 123 to limit the rotation of the support foot component 12 relative to the plastic package housing 11, thereby constraining the support foot component 12 and ensuring the stability and reliability of the fixation of the motor 100.

[0052] Specifically, there are two first positioning structures 114 , which are spaced apart from each other. Similarly, there are two second positioning structures 123 , which are spaced apart from each other one by one.

[0053] In some embodiments, the first positioning structure is a plurality of positioning columns extending upward from the supporting surface, and the second positioning structure is a plurality of positioning holes formed on the supporting surface. The plurality of positioning columns are arranged along the circumferential direction and correspond to the plurality of positioning holes.

[0054] In this way, the first positioning structure 114 is a positioning column, and the second positioning structure 123 is a positioning hole corresponding to the positioning column, which is beneficial to reducing the production cost of the motor 100.

[0055] Specifically, since the first positioning structure 114 is arranged on the plastic shell 11 and is integrally formed with the plastic shell 11 using the first material, and the second positioning structure 123 is arranged on the supporting foot component 12 and is integrally formed with the supporting foot component 12 using the second material, it is easy to understand that since the strength of the second material is greater than the strength of the first material, generally speaking, the stronger the material, the higher its cost, and therefore, the cost of the second material is greater than the cost of the first material.

[0056] The positioning post is cylindrical, and the cross section of the positioning post is circular. The positioning hole is a cylindrical blind hole, and the cross section of the positioning hole is circular as that of the positioning post. In this arrangement, first, the cylindrical positioning post and positioning hole design can increase the contact area, thereby improving the stability and reliability of the connection.

[0057] Secondly, the cylindrical design of the locating posts and locating holes can also provide precise positioning, ensuring that the parts can be accurately aligned during assembly. This helps to reduce assembly errors and improve the overall performance of the product.

[0058] Third, cylindrical locating columns and locating holes can distribute the load more effectively, making the structure more uniform when subjected to force. This helps reduce deformation or damage caused by uneven loads and improves the overall strength of the structure.

[0059] Fourth, cylindrical designs are usually easier to achieve through machining or mold forming, which helps simplify the manufacturing process and reduce production costs. In addition, uniform specifications and shapes also make quality control during the manufacturing process easier.

[0060] The cross-sectional diameter of the positioning hole is the same as the cross-sectional diameter of the positioning hole. Furthermore, the depth of the positioning hole should be slightly greater than the length of the positioning column. First, when the depth of the positioning hole is slightly greater than the length of the positioning column, the positioning column can have a larger space for movement during the assembly process, which helps to achieve a smoother assembly process. This design allows a certain degree of tolerance during assembly, and even if there is a slight position deviation or manufacturing error, the assembly can be completed smoothly.

[0061] Secondly, if the contact between the locating column and the locating hole is too close, stress concentration may occur at the contact point, causing damage or deformation of the part. The design of the locating hole depth slightly larger than the locating column length can reduce this stress concentration to a certain extent and improve the durability of the part.

[0062] Furthermore, after assembly, this design also allows for fine-tuning or correction. If the position of the locating post in the locating hole needs to be adjusted, this design provides enough space to operate.

[0063] Furthermore, the locating column and the locating hole are fitted in an interference fit. The interference fit connection method is relatively simple and does not require additional fastening parts or intermediate parts, which helps to simplify the entire mechanical structure. At the same time, since the interference fit is a tight connection achieved through the elastic deformation of the material, it has better centering performance and can ensure the stability and accuracy of the connection. Moreover, the interference fit connection method can effectively transmit larger loads. Since the connection parts 126 are tightly fitted together through the elastic deformation of the material, they can withstand greater tension and pressure and are suitable for occasions with heavy loads and high strength requirements. In addition, the interference fit connection method has better impact resistance. When subjected to impact or vibration, due to the tight fit of the connection part 126 and the elastic deformation of the material, it can effectively absorb and disperse the impact energy and reduce the risk of damage and failure of mechanical components.

[0064] In other embodiments, the first positioning structure 114 is a positioning hole, and the second positioning structure 123 is a positioning column that corresponds to the positioning column. In this configuration, since the positioning column is subjected to a large shear force when in use, the positioning column is arranged on the support foot component 12, and the positioning column is formed by using a second material with higher strength, which is conducive to strengthening the structural strength of the positioning column, improving the stability and reliability of the connection between the support foot component 12 and the plastic package housing 11, and is conducive to increasing the service life of the support foot component 12 and reducing maintenance costs.

[0065] In other embodiments, the cross-sectional shape of the positioning post and the positioning hole may also be an ellipse or other polygon. In this way, the non-circular cross-sectional shape can provide more matching constraints, making it more difficult for the support frame component and the plastic package shell 11 to move or rotate relative to each other after assembly. This design enhances the stability and reliability of the connection, and is particularly suitable for occasions that need to withstand complex forces and moments. In addition, the positioning post and the positioning hole with a non-circular cross-section have a specific direction and shape, which can only be matched in a specific way during the assembly process. This design helps to prevent assembly errors and improve the accuracy and efficiency of assembly.

[0066] In other embodiments, the cooperation mode of the positioning column and the positioning hole can also be a transition fit. The transition fit allows dimensional changes within a certain range, which enhances the interchangeability between parts. During the production process, even if there are slight manufacturing errors, the parts can still fit smoothly, reducing the strict requirements for manufacturing accuracy and improving production efficiency. The design of the transition fit can be adjusted according to the actual assembly requirements, which can not only ensure the close connection between the parts, but also avoid assembly difficulties or stress concentration problems that may be caused by interference fit. This flexibility enables the transition fit to adapt to the needs of different application scenarios.

[0067] Obviously, the fit between the locating column and the locating hole cannot be a clearance fit. Clearance fit reduces the overall rigidity of the structure, making the mechanical system prone to deformation or vibration when subjected to external forces. This may lead to problems such as reduced mechanical performance, reduced stability, and increased noise and vibration.

[0068] See also Figure 3 In some embodiments, the arc range of the collar surface 122 is 90° to 180°.

[0069] In this way, if the curvature range of the retaining ring surface 122 is less than 90°, the retaining ring surface 122 will be too small, resulting in several types of stress, which will affect the service life and reliability of the support foot component 12. If the curvature range of the retaining ring surface 122 is greater than 180°, the increased retaining ring surface 122 has extended to the upper half of the mounting surface 113, and the increased portion of the retaining ring surface 122 cannot play a bearing role, so increasing the curvature of the retaining ring surface 122 has no beneficial effect. In addition, since the arc formed by the retaining ring surface 122 is a superior arc at this time, it can only be installed along the axial direction of the drive shaft of the motor 100 during installation, which increases the difficulty of installation, and further increasing the curvature of the retaining ring surface 122 will further waste raw materials. Therefore, the curvature range of the retaining ring surface 122 should be less than 180°.

[0070] Specifically, in this embodiment, the arc of the snap ring surface 122 is 120°. The 120° snap ring surface 122 has a relatively large support area and can provide a more stable and balanced support. This design helps to ensure structural stability and reduce the risk of damage. Since the support area is relatively large, the snap ring surface 122 can more effectively disperse the pressure on the column. This helps to reduce the situation where a single point is subjected to excessive force, improve the durability of the support foot component 12, and extend its service life.

[0071] See also Figure 2 and Figure 3In some embodiments, the plastic shell 11 includes a first fastening structure 115, the supporting foot component 12 includes a second fastening structure 124, the motor 100 includes an end cover 20 and a fastener 30, and the fastener 30 passes through the end cover 20 and the second fastening structure 124 and is fastened to the first fastening structure 115 to fix the end cover 20 and the supporting foot component 12 on the plastic shell 11.

[0072] In this way, the support foot component 12 and the plastic package housing 11 are detachably connected, which is convenient for maintenance and replacement of the support foot component 12 and helps to save the maintenance cost of the drive motor 100 .

[0073] Specifically, the first fastening structure 115 is a fastening hole arranged in the middle of the first positioning structure 114, and the second fastening structure 124 is a through hole arranged in the middle of the second positioning structure 123. The number of fastening holes is two, and each first positioning structure 114 is provided with a fastening hole. Similarly, the number of through holes is also two, and the through holes and the fastening holes are arranged one by one. Three through holes are arranged at intervals on the edge of the end cover 20, among which two through holes are arranged corresponding to the positions of the two fastening holes.

[0074] See also Figure 3 In some embodiments, the supporting foot component 12 includes a connecting portion 126 and two supporting feet 125 , the connecting portion 126 is connected to the plastic package shell 11 , and the two supporting feet 125 extend outward from both ends of the connecting portion 126 .

[0075] Thus, providing two supporting legs 125 can make the motor 100 more stably fixed, and the two supporting legs 125 are connected by the connecting portion 126 to further enhance the structural strength.

[0076] Specifically, the connecting portion 126 is arched, and the arch protrudes away from the motor 100, and the two supporting feet 125 are respectively connected to the two ends of the arched connecting portion 126. The arched design has excellent structural stability and can effectively withstand loads from all directions. The arched connecting portion 126 can significantly improve the stability and compressive strength of the entire structure, especially when subjected to heavy loads or high stress environments, this advantage is more prominent. In parts, stress concentration often easily leads to damage or failure. The arched connecting portion 126 can effectively disperse these concentrated stresses and distribute them to a wider area, thereby reducing the destructive effect of stress on parts and extending the service life of parts. The arched connecting portion 126 has good resistance to impact loads. Adding an arched connecting portion 126 to a part can effectively improve the impact resistance of the part and reduce the damage or deformation that may occur when it is impacted.

[0077] In addition, the arched connection portion 126 can significantly increase the strength and rigidity of the part without adding too much volume or weight, which makes it possible to more effectively utilize materials and achieve higher performance within a limited space.

[0078] Furthermore, the connecting portion 126 is provided with an arc-shaped forming surface on the side away from the snap ring surface 122. The forming surface is an arc surface, and the cylindrical surface where the snap ring surface 122 is located is coaxial with the cylindrical surface where the forming surface is located. This arrangement can make the thickness of the arched connecting portion 126 equal at all places, so that the strength of the connecting portion 126 is uniform, which is conducive to improving the reliability and stability of the connecting portion 126 and improving the service life of the connecting portion 126.

[0079] In other embodiments, the two supporting feet 125 may also be respectively arranged on the two connecting parts 126. In this case, the supporting feet 125 should be arranged in the middle of the connecting part 126 to ensure more uniformity. At the same time, the two supporting feet 125 need to be arranged at intervals to ensure that the motor 100 can be supported more stably.

[0080] See also Figure 3 In some embodiments, a fixing hole 1251 is formed at the end of the supporting foot 125 .

[0081] In this way, the fixing hole 1251 is used to fix the fixed support foot component 12 at its installation position to achieve the installation of the drive motor 100.

[0082] Specifically, both ends of the fixing hole 1251 are provided with a reinforcing boss 1252, and the reinforcing boss 1252 is arranged around the fixing hole 1251. The design of the reinforcing boss 1252 can significantly improve the structural strength of the edge of the fixing hole 1251. In this way, when subjected to external force, the reinforcing boss 1252 can effectively disperse and resist stress, reduce the risk of damage caused by stress concentration, and thus ensure the stability and safety of the overall structure.

[0083] The addition of the reinforcing boss 1252 can also increase the bearing capacity of the edge of the fixing hole 1251. As an additional supporting structure, the reinforcing boss 1252 can share more loads, so that the fixing hole 1251 can withstand greater forces or moments and adapt to more severe working environments. It helps to optimize the stress distribution at the edge of the fixing hole 1251. By reasonably designing the shape and size of the reinforcing boss 1252, the stress can be directed to a wider area, reducing the phenomenon of excessive local stress, thereby improving the fatigue life of the parts.

[0084] In addition, the reinforcing boss 1252 on the edge of the fixing hole 1251 can effectively prevent loosening and deformation caused by long-term use or external force. The presence of the reinforcing boss 1252 increases the stability of the fixing hole 1251, reduces the risk of loosening caused by vibration or impact, and ensures the durability of the fixed connection.

[0085] In the description of this specification, the description with reference to the terms "certain embodiments", "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0086] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, unless otherwise clearly and specifically defined.

[0087] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application. The scope of the present application is defined by the claims and their equivalents.

Claims

1. A motor, characterized in that: include: The stator comprises a stator core and a plastic-encapsulated shell overmolded on the stator core, wherein the plastic-encapsulated shell is made of a first material; A rotor rotatably disposed in the stator core; A supporting foot component is close to the output end of the rotor and is detachably connected to the plastic package shell. The supporting foot component is made of a second material, and the strength of the second material is greater than that of the first material.

2. The motor according to claim 1, characterized in that The plastic-encapsulated shell is formed with a mounting seat, which includes a supporting surface, which is substantially perpendicular to the axial direction of the motor, and the supporting foot component includes a bearing surface that cooperates with the supporting surface, and the supporting foot component is fixed to the plastic-encapsulated shell by bearing against the supporting surface.

3. The motor according to claim 2, characterized in that The mounting seat includes a mounting surface, which is an outer cylindrical surface that is basically coaxial with the axial direction of the motor. The supporting foot component includes a retaining ring surface that cooperates with the mounting surface, and the retaining ring surface is an inner cylindrical surface. The supporting foot component is fixed to the plastic package shell through the cooperation between the retaining ring surface and the mounting surface.

4. The motor according to claim 3, characterized in that The mounting seat includes a first positioning structure formed on the supporting surface, and the supporting foot component includes a second positioning structure formed on the bearing surface. The first positioning structure cooperates with the second positioning structure to limit the rotation of the supporting foot component relative to the plastic package shell.

5. The motor according to claim 4, characterized in that The first positioning structure is a plurality of positioning posts extending upward from the supporting surface, and the second positioning structure is a plurality of positioning holes formed on the bearing surface. The plurality of positioning posts are arranged along a circumferential direction and correspond to the plurality of positioning holes.

6. The motor according to claim 3, characterized in that The arc angle of the clamping ring surface ranges from 90° to 180°.

7. The motor according to claim 1, characterized in that The plastic-encapsulated shell includes a first fastening structure, the supporting foot component includes a second fastening structure, and the motor includes an end cover and a fastener. The fastener passes through the end cover and the second fastening structure and is fastened to the first fastening structure to fix the end cover and the supporting foot component to the plastic-encapsulated shell.

8. The motor according to claim 1, characterized in that The supporting foot component comprises a connecting portion and two supporting feet, wherein the connecting portion is connected to the plastic package shell, and the two supporting feet extend outwards from two ends of the connecting portion.

9. The motor according to claim 7, characterized in that The ends of the supporting legs are formed with fixing holes.

10. A washing machine, characterized in that: A motor comprising any one of claims 1 to 9.

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