Direct drive motor mounting structure of a drum washing machine and drum washing machine

Abstract

The utility model discloses a direct drive motor mounting structure of drum washing machine and drum washing machine, the utility model discloses a direct drive motor mounting structure of drum washing machine includes the mounting seat, has the outer tube mounting surface and motor mounting surface in the both sides of mounting seat, first stator mounting structure is located on the motor mounting surface, the mounting seat has a plurality of first through -hole, each first through -hole is along the circumferential interval of mounting seat and is set, first through -hole is along the radial extension of mounting seat and has certain radial extension length and is set and has a certain radial extension length, and the first stator mounting structure forms the notch on the outer tube mounting surface, the utility model discloses a direct drive motor mounting structure of drum washing machine, through a plurality of through -hole on the mounting seat, for installing the side of direct drive motor and the side communication with the bottom of outer tube, and direct drive motor can realize avoidance through through -hole when working, simultaneously, can also reduce the use of material, reaches the purpose of reducing weight and cost.

Description

Technical Field

[0001] This utility model belongs to the field of motor technology, specifically, it relates to a direct drive motor mounting structure for a drum washing machine and a drum washing machine. Background Technology

[0002] Front-loading washing machines use the friction between the drum, driven by an electric motor, and the clothes to wash them. This method is characterized by minimal damage and tangle-free washing, and also provides the effects of pounding and rubbing.

[0003] Among existing drum-type washing machines, there are two types: indirect drive washing machines, in which the driving force of the electric motor is transmitted to the drum through a belt indirectly wound around the motor pulley and the drum pulley; and direct drive washing machines, in which the direct drive motor is directly connected to the drum to directly transmit the driving force of the motor to the drum. Direct drive washing machines are widely used due to their lower energy consumption and noise levels.

[0004] In existing technology, direct drive motors in drum washing machines are typically mounted on motor mounting brackets to improve stability. Since the direct drive motor is mounted directly on the side of the mounting bracket, and the bottom of the outer drum usually has staggered reinforcing ribs, improving the clearance of the motor mounting bracket while ensuring strength is a pressing issue.

[0005] In view of this, this utility model is hereby proposed. Utility Model Content

[0006] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art. The first objective is to provide a direct drive motor mounting structure for a drum washing machine. By using multiple through holes and notches on the mounting base, the direct drive motor can be avoided during installation through the through holes.

[0007] The second objective is to provide a direct drive motor mounting structure for a drum washing machine. By using multiple through holes on the mounting base, the material usage can be reduced, thereby reducing weight and cost. The through holes can also achieve a certain degree of clearance.

[0008] The third objective is to provide a drum washing machine that, by setting a direct drive motor mounting structure, can improve the connection strength between the direct drive motor and the inner drum and the stability of operation.

[0009] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows: A direct drive motor mounting structure for a drum washing machine, comprising: The mounting base has opposite outer cylinder mounting surfaces and motor mounting surfaces; The mounting base has multiple first through holes; Each first through hole is spaced apart along the circumference of the mounting base; The first through hole extends radially along the mounting base and has a certain radial extension length; A notch is formed on the mounting surface of the outer cylinder; The notch is located between two adjacent first through holes.

[0010] Furthermore, the first through hole penetrates both the outer cylinder mounting surface and the motor mounting surface; The notch protrudes from the outer cylinder mounting surface to the motor mounting surface, forming a recessed structure with a certain depth.

[0011] Furthermore, the outer cylinder mounting surface includes a second outer cylinder mounting surface and a first outer cylinder mounting surface located on the outer periphery of the second outer cylinder mounting surface; The first through hole is provided on the mounting surface of the second outer cylinder; The first through hole extends from the center of the mounting base to the edge of the second outer cylinder mounting surface; The notch extends a certain length from the connection between the second outer cylinder mounting surface and the first outer cylinder mounting surface toward the center.

[0012] Furthermore, there is a height difference between the first outer cylinder mounting surface and the second outer cylinder mounting surface; The first outer cylinder mounting surface and the second outer cylinder mounting surface are connected by a first connecting surface; The first through hole extends from the center of the mounting base to the first connecting surface; The bottom wall of the notch is flush with the first outer cylinder mounting surface, and the notch penetrates the first connecting surface. There is a height difference between the first outer cylinder mounting surface and the second outer cylinder mounting surface. The first outer cylinder mounting surface and the second outer cylinder mounting surface are connected by a first connecting surface; The first through hole extends from the center of the mounting base to the first connecting surface; The bottom wall of the notch protrudes from the motor mounting surface to form a first stator mounting structure.

[0013] Furthermore, the notch is positioned close to the first through hole; Alternatively, the notch may be positioned to intersect with the first through hole; The notch is located at the end of the first through hole away from the center of the mounting base.

[0014] Furthermore, the mounting base also includes a reinforcing portion extending from the edge of the mounting base to the center of the mounting base; Multiple reinforcing parts are provided and are spaced apart along the circumference of the mounting base; Each reinforcement section divides the mounting base into multiple areas; Each region shall have at least one first through hole.

[0015] Furthermore, the notch is located on the extension path of the reinforcing part; Alternatively, the notch may be located on one side of the reinforcing portion and be disposed adjacent to the reinforcing portion.

[0016] Furthermore, the outer periphery of the first outer cylinder mounting surface forms a protrusion and a recess that extend radially along the mounting base; The protrusions and the recesses are alternately arranged circumferentially along the first outer cylinder mounting surface; The notch is at least partially positioned opposite the protrusion.

[0017] Furthermore, multiple fixing parts are provided on the mounting surface of the first outer cylinder; Each fixing part is staggered on the protrusion or the recess; The fixing part located on the recess is positioned close to the notch.

[0018] Furthermore, a drum washing machine includes an outer drum, and the bottom of the outer drum is equipped with the aforementioned direct drive motor mounting structure for the drum washing machine.

[0019] By adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art.

[0020] 1. The direct drive motor mounting structure of the drum washing machine of this utility model, through multiple through holes and notches on the mounting base, allows the direct drive motor to avoid obstruction during installation; at the same time, it can also reduce the use of materials, thereby reducing weight and cost.

[0021] 2. The direct drive motor mounting structure of the drum washing machine of this utility model, by setting the through hole between two adjacent reinforcing ribs, can both ensure the strength of the mounting base and achieve the purpose of avoiding material reduction.

[0022] 3. The drum washing machine of this utility model, by setting a direct drive motor mounting structure, can improve the connection strength between the direct drive motor and the inner drum and the stability of operation.

[0023] Meanwhile, this utility model has a simple structure, significant effects, and is suitable for widespread use.

[0024] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0025] The accompanying drawings, as part of this utility model, are used to provide a further understanding of the present utility model. The illustrative embodiments and descriptions of the present utility model are used to explain the present utility model, but do not constitute an undue limitation of the present utility model. Obviously, the drawings described below are merely some embodiments; those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings: Figure 1 This is a top view of the direct drive motor mounting structure of the drum washing machine of this utility model; Figure 2 This is a schematic diagram of the direct drive motor mounting structure of the drum washing machine of this utility model; Figure 3 yes Figure 2 Enlarged view of point A in the middle; Figure 4 This is a schematic diagram of the direct drive motor mounting structure of the drum washing machine of this utility model from another angle; Figure 5 yes Figure 4 Enlarged view of point B in the middle.

[0026] In the diagram: 1. Mounting base; 11. Mounting surface; 111. Outer cylinder mounting surface; 1111. First outer cylinder mounting surface; 1112. Second outer cylinder mounting surface; 1114. First connecting surface; 1115. Second connecting surface; 112. Motor mounting surface; 12. First mounting part; 121. Protrusion; 122. Recess; 13. Second mounting part; 14. First raised ridge; 15. Reinforcing rib; 16. Second raised ridge; 2. Rotor shaft; 21. Flange; 3. Spline; 4. Reinforcing rib; 5. Reinforcing part; 6. Fixing part; 61. Boss; 62. First raised rib; 63. Limiting groove; 64. Second raised rib; 7. First stator mounting structure; 8. Second stator mounting structure; 91. First through hole; 92. Second through hole; 93. Notch.

[0027] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0029] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] Front-loading washing machines are designed to mimic the principle of beating clothes with a stick. The electric motor rotates the outer drum, causing clothes to be repeatedly lifted and tumbled within it. Combined with the action of detergent and water, this repetitive motion cleans the clothes. Because of their large drum capacity, front-loading washing machines can wash delicate fabrics like cashmere and silk, minimizing wear and tear and effectively preventing clothes from tangling.

[0032] A drum washing machine includes a housing and a drum assembly. The housing has a clothes inlet, and the drum assembly is installed inside the housing. The drum assembly is connected to the clothes inlet of the housing through a window gasket.

[0033] In this embodiment, when the drum washing machine has a twin-tub structure, the tub assembly includes an outer tub and an inner tub fitted inside the outer tub. The axis of the outer tub extends horizontally or slightly upward at the tub opening. The outer tub is movably installed inside the housing, and a drive motor is installed on the rear side of the bottom of the outer tub to drive the inner tub to rotate and perform washing, spin-drying, and other treatments on the clothes inside the inner tub.

[0034] In drum washing machines, the drive motor is generally a direct drive motor, which consumes less energy and produces less noise. To facilitate the installation of the direct drive motor and improve its installation strength, a motor mounting bracket is provided at the bottom of the outer drum.

[0035] During installation, the stator of the direct drive motor is fixedly mounted on the motor mounting bracket, and the rotor of the direct drive motor is connected to the inner drum through the motor mounting bracket. When the rotor of the direct drive motor rotates, its power is transmitted to the inner drum through the motor mounting bracket, thereby realizing the rotation of the inner drum. Direct drive motors have high transmission efficiency and save installation space inside the washing machine.

[0036] like Figures 1 to 5 As shown, the direct drive motor mounting structure of the drum washing machine of this utility model includes a mounting base 1, which is fixedly connected to the bottom of the outer drum. The mounting base 1 is disc-shaped, and the side of the mounting base 1 away from the direct drive motor is fitted against the bottom of the outer drum.

[0037] In this embodiment, the mounting base 1 has a through hole at its center for mounting the rotor shaft 2 of the direct drive motor. One end of the rotor shaft 2 is connected to the inner cylinder, and the other end is connected to the rotor of the direct drive motor. When the rotor rotates, it drives the rotor shaft 2 to rotate, thereby transmitting the power of the direct drive motor rotor to the inner cylinder through the rotor shaft 2.

[0038] In this embodiment, the mounting base 1 is installed along the front-to-back direction of the drum washing machine. The mounting base 1 has a mounting surface 11, which includes an outer drum mounting surface 11111 that abuts against the outer drum and a motor mounting surface 11211 for mounting the direct drive motor. A first protruding rib 14 extends outward from the outer drum mounting surface 11111 at the center of the mounting base 1, and a second protruding rib 16 extends outward from the motor mounting surface 11211 at the center of the mounting base 1. The through-hole structure formed between the end of the first protruding rib 14 and the end of the second protruding rib 16 is a through hole.

[0039] In this embodiment, a bearing positioning groove is provided at both the inner and outer ends of the through hole, and a positioning bearing is provided in each bearing positioning groove, with the rotor shaft 2 passing through the positioning bearing. The two positioning bearings achieve a rotatable connection between the rotor shaft 2 and the mounting base 1. Of course, depending on the actual situation, different types of seals can be provided on the outside of the positioning bearings to ensure the stability of the rotor shaft 2.

[0040] In this embodiment, the first protruding ridge 14 and the mounting base 1 are integrally formed, and the second protruding ridge 16 and the mounting base 1 are integrally formed. On the one hand, the strength of the first protruding ridge 14 and the second protruding ridge 16 can be improved, and on the other hand, the overall strength of the mounting base 1 can be improved.

[0041] In this embodiment, a spline 3 is provided at one end of the rotor shaft 2 near the second protruding ridge 16, and the rotor of the direct drive motor and the rotor shaft 2 are connected through the spline 3. The end of the spline 3 is provided with a threaded hole along the axial direction of the spline 3. By using fasteners such as screws and engaging with the threaded hole, the rotor of the direct drive motor can be pressed and fixed onto the spline 3.

[0042] In this embodiment, a flange 21 is provided at one end of the rotor shaft 2 near the first protruding ridge 14, and the flange 21 is connected to the inner cylinder.

[0043] In this embodiment, the diameters of the first protruding ridge 14 and the second protruding ridge 16 can be adjusted according to actual conditions. The diameters of the first protruding ridge 14 and the second protruding ridge 16 can be the same or different. A suitable positioning bearing is selected based on the diameters of the first protruding ridge 14 and the second protruding ridge 16.

[0044] In this embodiment, the mounting base 1 includes an integrally formed first mounting portion 12 and a second mounting portion 13. Preferably, the first mounting portion 12 and the second mounting portion 13 are integrally formed to improve the overall strength. The second mounting portion 13 is located closer to the rotor shaft 2 than the first mounting portion 12.

[0045] Furthermore, the first mounting portion 12 and the second mounting portion 13 are spaced apart, and are connected by reinforcing ribs 15. In this embodiment, the first mounting portion 12, the second mounting portion 13, and the reinforcing ribs 15 are integrally formed, which improves the overall strength. Multiple reinforcing ribs 15 are provided, and are spaced apart along the circumference of the mounting base 1.

[0046] Because direct-drive motors operate at high speeds, exceeding 1,000 revolutions per minute, and the clothes impact the inner drum during washing, significant force is generated. Therefore, the strength of the direct-drive motor mounting structure is critical. By incorporating reinforcing ribs 15, the first mounting part 12, the second mounting part 13, and the reinforcing ribs 15 are integrated, preventing stress concentration and improving overall strength.

[0047] In this embodiment, a portion of the reinforcing rib 15 extends from the outer peripheral wall of the second mounting portion 13 to the inner peripheral wall of the first mounting portion 12. A support seat is provided at the connection between the first mounting portion 12 and the reinforcing rib 15. The support seat increases the contact area between the reinforcing rib 15 and the first mounting portion 12, further improving the connection strength and enhancing safety. Specifically, the support seat extends from the end of the reinforcing rib 15 along the circumference of the reinforcing rib 15 and extends away from the reinforcing rib 15 to form an arc-shaped transition surface, thereby increasing the contact area.

[0048] In this embodiment, some of the reinforcing ribs 15 extend from the outer peripheral wall of the second mounting part 13 to the outer edge of the first mounting part 12, further improving the connection strength and also improving the overall strength of the mounting base 1.

[0049] In this embodiment, the motor mounting surface 112 of the first mounting part 12 and the motor mounting surface 112 of the second mounting part 13 are substantially flush to facilitate the installation of the direct drive motor. To facilitate the installation of the stator of the direct drive motor, a stator mounting structure is provided on the mounting base 1. During installation, the stator of the direct drive motor is fixed to the stator mounting structure using screws or other fasteners.

[0050] In this embodiment, at least two reinforcing ribs 15 form a reinforcing unit, and multiple reinforcing units are formed between the first mounting portion 12 and the second mounting portion 13. Each reinforcing unit may consist of 2-4 reinforcing ribs 15. An outer cylinder mounting surface 111 is formed between two adjacent reinforcing ribs 15 in each group of reinforcing units. Through the above arrangement, the contact area with the outer cylinder can be increased.

[0051] In this embodiment, there is a height difference between the outer cylinder mounting surface 111 at the center and the outer cylinder mounting surface 111 on the outside, and the first mounting part 12 has an irregular skirt structure, that is, the edges of the first mounting part 12 are arranged with alternating concave and convex shapes along the circumference. With the above structure, it can be adapted to the bottom of the outer cylinder, making it easier to fix the mounting base 1.

[0052] Specifically, the outer periphery of the first mounting portion 12 includes protrusions 121 and recesses 122, which extend radially along the mounting base 1. Multiple protrusions 121 and recesses 122 are provided, and they are alternately arranged circumferentially along the first mounting portion 12. Through the staggered arrangement of the protrusions 121 and recesses 122, the edge of the first mounting portion 12 presents a staggered layout, allowing for better fit and installation with the bottom of the outer cylinder, achieving a better clearance effect.

[0053] In this embodiment, the outer cylinder mounting surface 111 includes a first outer cylinder mounting surface 1111 and a second outer cylinder mounting surface 1112. The first outer cylinder mounting surface 1111 is located on the outer periphery of the second outer cylinder mounting surface 1112, and there is a height difference between the first outer cylinder mounting surface 1111 and the second outer cylinder mounting surface 1112. By forming the outer cylinder mounting surface 111 in the mounting base 1, it is easy for the mounting base 1 and the bottom of the outer cylinder to fit together. At the same time, the outer cylinder mounting surface 111 includes the first outer cylinder mounting surface 1111 and the second outer cylinder mounting surface 1112. By setting the first outer cylinder mounting surface 1111 and the second outer cylinder mounting surface 1112 to have different surfaces, it can better fit the bottom of the outer cylinder and improve the overall connection strength.

[0054] In this embodiment, the first mounting portion 12 is located on the first outer cylinder mounting surface 1111, and the reinforcing rib 15 is located on the second outer cylinder mounting surface 1112. Specifically, the second outer cylinder mounting surface 1112 is located between the outer wall of the first protruding rib 14 and the inner wall of the first mounting portion 12, and there is a height difference between the first outer cylinder mounting surface 1111 and the second outer cylinder mounting surface 1112. Specifically, both ends of the reinforcing rib 15 are connected to the inner wall of the first mounting portion 12 and the outer wall of the second mounting portion 13, respectively. The reinforcing rib 15 protrudes and extends towards one side of the outer cylinder mounting surface 111, resulting in a height difference between the top surfaces of the first mounting portion 12 and the reinforcing rib 15, i.e., a height difference between the first outer cylinder mounting surface 1111 and the second outer cylinder mounting surface 1112.

[0055] In this embodiment, the first outer cylinder mounting surface 1111 and the second outer cylinder mounting surface 1112 are connected by a first connecting surface 1114, and the second outer cylinder mounting surface 1112 and the first protruding ridge 14 are connected by a second connecting surface 1115. The first connecting surface 1114 and the second connecting surface 1115 ensure a smooth transition between the various mounting surfaces 11. The protrusion 121 and the recess 122 are located on the outer periphery of the first outer cylinder mounting surface 1111.

[0056] In this embodiment, the mounting base 1 has a plurality of first through holes 91, and each first through hole 91 is arranged at intervals along the circumference of the mounting base 1. By setting the first through holes 91, the material usage can be reduced, the weight can be reduced while maintaining the structural strength, the cost can be reduced, stress can be dispersed, stress concentration can be avoided, and an avoidance effect can be achieved to prevent the mounting base 1 from interfering with the bottom of the outer cylinder during installation.

[0057] In this embodiment, a second through hole 92 is also provided on the mounting base 1. The first through hole 91 is located near the rotor shaft 2, and the second through hole 92 is located near the edge of the mounting base 1. The provision of the first through hole 91 and the second through hole 92 can improve the applicability to different types of direct drive motors. At the same time, it further reduces the amount of material used and lightens the weight of the mounting base.

[0058] In this embodiment, the first through hole 91 and the second through hole 92 both penetrate the outer cylinder mounting surface 111 and the motor mounting surface 112, so that the side used to install the direct drive motor and the side in contact with the bottom of the outer cylinder are connected, thereby achieving the avoidance effect.

[0059] In this embodiment, the first through holes 91 are distributed circumferentially along the first protruding ridge 14, and are located between the first mounting portion 12 and the second mounting portion 13. The first through holes 91 are located between two adjacent reinforcing ribs 15. By placing the through holes 91 between two adjacent reinforcing ribs 15, the strength of the mounting base 1 can be guaranteed, and the purpose of avoidance can also be achieved.

[0060] In this embodiment, the first through hole 91 is arranged radially along the mounting base 1, and the first through hole 91 has a tapering structure from the first mounting portion 12 to the second mounting portion 13. The first through hole 91 is generally trapezoidal, that is, the length of the first through hole 91 near the first protruding ridge 14 is less than the length of the end near the first mounting portion 12. The first through hole 91 gradually increases in size from the center of the mounting base 1 towards the edge of the mounting base 1. On the one hand, the center of the mounting base 1 is subjected to greater force, and a smaller first through hole 91 can ensure the strength requirements, while the gradual increase in size of the first through hole 91 saves material.

[0061] In this embodiment, since the edge of the mounting base 1 is used to fix it to the outer cylinder, the first through hole 91 is larger than the second through hole 92 to ensure the strength of the edge of the mounting base 1. At the same time, the first through hole 91 can make full use of the space in the middle of the mounting base 1, maximizing the first through hole 91 and greatly reducing the amount of material used.

[0062] In this embodiment, the first through hole 91 and the second mounting portion 13 extend to the first connecting surface 1114, and the second through hole 92 is disposed close to the first connecting surface 1114. The first through hole 91 and the second through hole 92 are staggered. This ensures a smooth transition of the outer cylinder mounting surface 111 as a whole, avoiding the formation of long gaps on the mounting base 1, which would greatly affect its strength. This also allows for the distribution of the through holes 9 at various locations, avoiding stress concentration.

[0063] In this embodiment, the second through hole 92 is located on the protrusion 121, and the second through hole 92 is disposed away from the edge of the protrusion 121.

[0064] In this embodiment, a reinforcing rib 4 is provided between the first protruding rib 14 and the second outer cylinder mounting surface 1112. Multiple reinforcing ribs 4 are provided, and each reinforcing rib 4 is evenly spaced along the circumference of the first protruding rib 14. The strength is further improved by providing the reinforcing ribs 4. The first through hole 91 extends from the edge of the second outer cylinder mounting surface 1112 close to the reinforcing rib 4, ensuring the overall strength requirements are met.

[0065] In this embodiment, the shape of the through hole 9 can be adjusted according to the actual situation.

[0066] In order to improve the connection strength between the outer cylinder and the direct drive motor mounting structure, in this embodiment, the direct drive motor mounting structure further includes at least one reinforcing part 5, which is disposed on the mounting base 1 and extends from the edge of the mounting base 1 to one side of the rotor shaft 2.

[0067] By providing a reinforcing part 5, which extends from the edge of the mounting base 1 to one side of the rotor shaft 2, it can cooperate with the groove at the bottom of the outer cylinder during installation to achieve positioning and limiting of the mounting base 1, thereby improving the connection strength between the mounting base 1 and the outer cylinder. At the same time, the reinforcing part 5 extends from the edge of the mounting base 1 to the center of the mounting base 1, improving the strength of the mounting base 1.

[0068] Specifically, a slot is provided at the bottom of the outer cylinder. When the mounting base 1 is installed, the reinforcing part 5 on the mounting base 1 is inserted into the slot at the bottom of the outer cylinder. Through the cooperation of the slot and the reinforcing part 5, the mounting base 1 is positioned and limited, thereby improving the connection strength between the mounting base 1 and the outer cylinder.

[0069] In this embodiment, multiple reinforcing parts 5 are provided, and each reinforcing part 5 is distributed at intervals along the circumference of the mounting base 1. Specifically, in this embodiment, four reinforcing parts 5 are provided, and the four reinforcing parts 5 are evenly distributed at intervals along the circumference of the mounting base 1. Corresponding slots are provided on the outer cylinder to ensure that each reinforcing part 5 can be inserted into the slot. By providing multiple reinforcing parts 5, the instability of a single reinforcing part 5 is avoided, and the overall installation strength is guaranteed.

[0070] In this embodiment, each reinforcing part 5 divides the mounting base 1 into multiple regions, and each region has at least one first through hole 91. Through the above design, the first through holes 91 are distributed to avoid affecting the overall strength of the mounting base 1.

[0071] In this embodiment, the bottom of the outer cylinder is typically provided with an interlaced rib structure to improve the strength of the outer cylinder. Depending on the actual situation, the reinforcing part 5 can be designed to avoid certain areas. For example, the reinforcing part 5 can be designed as a curved shape; some of the reinforcing ribs 15 can be designed as grooves.

[0072] To address the aforementioned issues, this application provides a direct drive motor mounting structure that can accommodate both internal stator direct drive motors and external stator direct drive motors, achieving a "dual-purpose" solution and improving the versatility of the direct drive motor mounting structure.

[0073] Specifically, in this embodiment, the first stator mounting structure 7 and the second stator mounting structure 8 are coaxially arranged, and both the first stator mounting structure 7 and the second stator mounting structure 8 are arranged along the circumference of the mounting base 1. The distance from the first stator mounting structure 7 to the center of the mounting base 1 is greater than the distance from the second stator mounting structure 8 to the center of the mounting base 1. The first stator mounting structure 7 is used to mount the stator of an external stator direct drive motor, and the second stator mounting structure 8 is used to mount the stator of an internal stator direct drive motor.

[0074] In this embodiment, by setting the first stator mounting structure 7 and the second stator mounting structure 8, the direct drive motor can be flexibly installed according to actual needs when it is installed, without the need to process different direct drive motor mounting structures, thus improving the versatility of the direct drive motor mounting structure.

[0075] In this embodiment, there is a height difference between the first stator mounting structure 7 and the second stator mounting structure 8 and the motor mounting surface 112, which can provide installation space for the stator to achieve the effect of avoidance and prevent mutual interference.

[0076] In this embodiment, the first stator mounting structure 7 is disposed on the first mounting portion 12, and the second stator mounting structure 8 is disposed on the second mounting portion 13. Through this arrangement, the first stator mounting structure 7 and the first mounting portion 12 can form a single unit, and the second stator mounting structure 8 and the second mounting portion 13 can form a single unit, thereby improving the strength of the first stator mounting structure 7 and the second stator mounting structure 8, reducing the possibility of damage to the first stator mounting structure 7 and the second stator mounting structure 8, and improving the stability of the direct drive motor after installation.

[0077] In this embodiment, both the first stator mounting structure 7 and the second stator mounting structure 8 are boss structures, and they are basically flush. The second stator mounting structure 8 is annular, surrounding the second protruding ridge 16. There is a height difference between the end of the second stator mounting structure 8 away from the motor mounting surface 112 and the end of the second protruding ridge 16. The end of the second protruding ridge 16 protrudes beyond the surface of the first stator mounting structure 7 to facilitate the connection between the rotor shaft 2 and the direct-drive motor rotor.

[0078] In this embodiment, the second stator mounting structure 8 can be integrally formed with the mounting base 1, that is, the second stator mounting structure 8 is integrally formed with the second mounting part 13 and the second protruding rib 16. The second stator mounting structure 8 can play a supporting and reinforcing role for the second protruding rib 16, thereby improving the strength of the second protruding rib 16 and the whole.

[0079] In this embodiment, multiple first stator mounting structures 7 are provided, and each first stator mounting structure 7 is distributed at intervals along the circumference of the first stator mounting structure 7.

[0080] In this embodiment, the first stator mounting structure 7 can be disposed at the connection between the first mounting portion 12 and the reinforcing rib 15. The first stator mounting structure 7 is fitted against the inner peripheral wall of the first mounting portion 12, and the side of the first boss away from the first mounting portion 12 is connected to the end of the reinforcing rib 15. Through the above arrangement, the first stator mounting structure 7 can make full use of the thickness of the mounting base 1 and increase the length of the first stator mounting structure 7, so as to achieve a more secure and stable effect when fixing the stator.

[0081] In this embodiment, when an external stator direct drive motor needs to be installed, after connecting the rotor and the rotor shaft 2 on the mounting base 1, the external stator is fitted onto the rotor and then fixed to the first stator mounting structure 7 with screws. When an internal stator direct drive motor needs to be installed, the internal stator is connected to the second stator mounting structure 8 with screws, and then the rotor and the rotor shaft 2 on the mounting base 1 are connected. Thus, two different types of direct drive motors can be installed using a single direct drive motor mounting structure. This allows for flexible installation of different types of direct drive motors according to actual needs, eliminating the need to fabricate different direct drive motor mounting structures and improving the versatility of the direct drive motor mounting structure.

[0082] In this embodiment, the first stator mounting structure 7 forms a notch 93 on the outer cylinder mounting surface 111, and the notch 93 is located between two adjacent first through holes 91. By setting the notch 93, it is convenient to install the direct drive motor, and at the same time, it has a clearance effect on the side where the mounting base 1 abuts against the outer cylinder.

[0083] In this embodiment, the notch 93 protrudes from the outer cylinder mounting surface 111 toward the motor mounting surface 112, forming a recessed structure with a certain depth. Through the above arrangement, multiple recessed structures are formed on the outer cylinder mounting surface 111, thereby achieving an avoidance effect and reducing weight.

[0084] In this embodiment, the notch 93 extends a certain length from the connection between the second outer cylinder mounting surface 1112 and the first outer cylinder mounting surface 1111 towards the center, thereby forming a notch structure with a certain radial extension length, which corresponds to the first stator mounting structure 7 on the other side.

[0085] In this embodiment, the bottom wall of the notch 93 protrudes from the motor mounting surface 112 to form the first stator mounting structure 7, and the notch 93 penetrates the first connecting surface 1114. Through this arrangement, the notch 93 has an opening at the top and one side, maximizing its clearance effect. Simultaneously, the protruding bottom wall diameter of the notch 93 forms the first stator mounting structure 7, ensuring overall strength.

[0086] In this embodiment, the notch 93 is positioned close to the first through hole 91; or the notch 93 intersects with the first through hole 91. The notch 93 is located at the end of the first through hole 91 furthest from the center of the mounting base 1. This arrangement prevents the notch 93 from affecting the strength at the center of the mounting base 1.

[0087] In this embodiment, the notch 93 is located on the extension path of the reinforcing part 5; or the notch 93 is located on one side of the reinforcing part 5 and is disposed adjacent to the reinforcing part 5. The strength at the notch 93 is improved by using the reinforcing part 5.

[0088] In this embodiment, the notch 93 is at least partially opposite to the protrusion 121, ensuring that the notch 93 and the edge of the mounting base 1 have a certain distance, thus ensuring the overall strength.

[0089] In this embodiment, the first mounting part 12 is provided with a plurality of fixing parts 6, which can connect the mounting base 1 and the bottom of the outer cylinder to achieve a fixing effect.

[0090] In this embodiment, the fixing part 6 is a circular through hole. By setting a corresponding threaded hole on the outer cylinder, the fastener passes through the fixing part 6 and is threadedly connected to the threaded hole of the outer cylinder, thereby realizing the connection and fixation between the outer cylinder and the mounting base 1.

[0091] In this embodiment, the fixing parts 6 are spaced apart circumferentially along the mounting base 1 to ensure that the mounting base 1 can be connected to the outer cylinder circumferentially, thereby improving the connection strength. Preferably, the fixing parts 6 are located near the edge of the first mounting part 12 to avoid interference with the direct drive motor and to facilitate the installation of the mounting base 1. Normally, the direct drive motor is installed on the mounting base 1 first, and then the mounting base 1 is installed on the outer cylinder. Therefore, the above arrangement can prevent interference.

[0092] In this embodiment, each fixing part 6 is provided on the reinforcing rib 15, that is, the fixing part 6 can be provided at the end of the reinforcing rib 15 or in a certain section in the middle of the reinforcing rib 15. The cooperation between the reinforcing rib 15 and the fixing part 6 can provide strength to the fixing part 6.

[0093] In this embodiment, the fixing part 6 penetrates the outer cylinder mounting surface 111 and the motor mounting surface 112, wherein the fixing parts 6 are all located close to the first connecting surface. Preferably, the fixing parts 6 are staggered along the circumference of the mounting base 1, that is, the fixing parts 6 are arranged in an inner and outer pattern along the circumference of the mounting base 1, which can both increase the number of fixing parts 6 and improve the strength of the fixing parts 6.

[0094] Specifically, the fixing part 6 is provided on the protrusion 121 or the recess 122. The fixing part 6 is provided according to the arrangement of the protrusion 121 and the recess 122 to avoid the fixing part 6 damaging the strength of the first mounting part 12. The fixing part 6 located on the recess 122 is positioned close to the notch 93.

[0095] In this embodiment, the number of fixing parts 6 on the protrusions 121 can be adjusted according to the actual situation. At least two fixing parts 6 can be provided on some protrusions 121 to improve the connection strength of the corresponding areas.

[0096] In this embodiment, a boss 61 extends circumferentially from the end of the fixing part 6. The boss 61 is located on the first outer cylinder mounting surface 1111. A first rib 62 is formed on the first mounting part 12. The first rib 62 is arranged circumferentially along the edge of the first mounting part 12. The first rib 62 is connected to the boss 61, which improves the strength of the fixing part 6 and avoids damage to the end of the fixing part 6 during installation.

[0097] In this embodiment, a limiting groove 63 is formed on the motor mounting surface 112, and the limiting groove 63 communicates with the fixing part 6. The limiting groove 63 can be used to accommodate the end of the fastener, preventing the fastener from protruding from the motor mounting surface 112.

[0098] In this embodiment, a second rib 64 is formed on the first mounting part 12. The second rib 64 is arranged circumferentially along the edge of the first mounting part 12. The second rib 64 is connected to the side wall of the limiting part to improve the strength of the limiting groove 63 and play a supporting and reinforcing role.

[0099] In this embodiment, the drum washing machine is equipped with the aforementioned direct drive motor mounting structure, and the drum washing machine has the same beneficial effects as the aforementioned direct drive motor mounting structure. The beneficial effects of the drum washing machine will not be elaborated further in this embodiment.

[0100] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present utility model. The implementation schemes in the above embodiments can also be further combined or replaced. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A direct drive motor mounting structure for a drum washing machine, characterized in that: include Mounting base (1) has opposite outer cylinder mounting surface (111) and motor mounting surface (112); The mounting base (1) has a plurality of first through holes (91); Each first through hole (91) is spaced apart along the circumferential direction of the mounting base (1); The first through hole (91) extends radially along the mounting base (1) and has a certain radial extension length; A notch (93) is formed on the mounting surface (111) of the outer cylinder; The notch (93) is located between two adjacent first through holes (91).

2. The direct drive motor mounting structure of the drum washing machine according to claim 1, characterized in that: The first through hole (91) penetrates the outer cylinder mounting surface (111) and the motor mounting surface (112); The notch (93) protrudes from the outer cylinder mounting surface (111) toward the motor mounting surface (112) to form a recessed structure with a certain depth.

3. The direct drive motor mounting structure of the drum washing machine according to any one of claims 1-2, characterized in that: The outer cylinder mounting surface (111) includes a second outer cylinder mounting surface (1112) and a first outer cylinder mounting surface (1111) located on the outer periphery of the second outer cylinder mounting surface (1112); The first through hole (91) is provided on the second outer cylinder mounting surface (1112); The first through hole (91) extends from the center of the mounting base (1) to the edge of the second outer cylinder mounting surface (1112); The notch (93) extends a certain length from the connection between the second outer cylinder mounting surface (1112) and the first outer cylinder mounting surface (1111) towards the center.

4. The direct drive motor mounting structure of the drum washing machine according to claim 3, characterized in that: There is a height difference between the first outer cylinder mounting surface (1111) and the second outer cylinder mounting surface (1112); The first outer cylinder mounting surface (1111) and the second outer cylinder mounting surface (1112) are connected by a first connecting surface (1114); The first through hole (91) extends from the center of the mounting base (1) to the first connecting surface (1114); The bottom wall of the notch (93) protrudes from the motor mounting surface (112) to form the first stator mounting structure (7).

5. The direct drive motor mounting structure of the drum washing machine according to any one of claims 1-2, characterized in that: The notch (93) is located near the first through hole (91); Alternatively, the notch (93) may be disposed intersecting with the first through hole (91); The notch (93) is located at the end of the first through hole (91) away from the center of the mounting base (1).

6. The direct drive motor mounting structure of the drum washing machine according to any one of claims 1-2, characterized in that: The mounting base (1) also includes a reinforcing part (5) extending from the edge of the mounting base (1) to the center of the mounting base (1); The reinforcing part (5) is provided in multiple portions, which are spaced apart along the circumference of the mounting base (1); Each reinforcing part (5) divides the mounting base (1) into multiple areas; Each region shall have at least one first through hole (91).

7. The direct drive motor mounting structure of the drum washing machine according to claim 6, characterized in that: The notch (93) is located on the extension path of the reinforcing part (5); Alternatively, the notch (93) may be located on one side of the reinforcing part (5) and be disposed adjacent to the reinforcing part (5).

8. The direct drive motor mounting structure of the drum washing machine according to claim 3, characterized in that: The outer periphery of the first outer cylinder mounting surface (1111) forms a protrusion (121) and a recess (122) that extend radially along the mounting base (1); The protrusion (121) and the recess (122) are alternately arranged circumferentially along the first outer cylinder mounting surface (1111); The notch (93) is at least partially disposed opposite to the protrusion (121).

9. The direct drive motor mounting structure of the drum washing machine according to claim 8, characterized in that: Multiple fixing parts (6) are provided on the first outer cylinder mounting surface (1111); Each fixing part (6) is staggered on the protrusion (121) or the recess (122); A fixing part (6) located on the recess (122) is provided near the notch (93).

10. A drum washing machine, comprising an outer drum, characterized in that: The bottom of the outer drum is equipped with a direct drive motor mounting structure for the drum washing machine as described in any one of claims 1-9.

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