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, one side has the motor mounting surface for installing direct drive motor, the other side has the outer tube mounting surface for with the abutment of outer tube, strengthen the department, set up on the outer tube mounting surface, strengthen the department from the through -hole of mounting seat extends to the edge of mounting seat, strengthen the department is provided with a plurality of, along the circumferential interval distribution, set up on one of strengthen the department has the avoidance groove, the utility model discloses a direct drive motor mounting structure of drum washing machine, through setting up strengthening department, strengthen the department from the edge of mounting seat extends to the one side of rotor shaft, when installing, can cooperate with the recess of outer tube bottom, realizes the positioning and spacing of mounting seat to improve the connecting strength of mounting seat and outer tube. Meanwhile, strengthen the department from the edge of mounting seat extends to the center of mounting seat, improved the strength of mounting seat.

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 a motor mounting bracket to improve stability. Because direct drive motors operate at high speeds, exceeding 1000 revolutions per minute, and because clothes impact the inner drum during washing, significant impact forces are generated. Therefore, high strength is required for the motor mounting bracket. Improving the connection strength between the motor mounting bracket and the outer drum is a problem that urgently needs to be solved.

[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 primary objective is to provide a direct drive motor mounting structure for a drum washing machine. By setting a reinforcing part, it can cooperate with the groove at the bottom of the outer drum during installation to achieve the positioning and limiting of the mounting seat, thereby improving the connection strength between the mounting seat and the outer drum.

[0007] The second 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.

[0008] 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 a motor mounting surface on one side for mounting a direct drive motor, and an outer cylinder mounting surface on the other side for abutting against the outer cylinder. A reinforcing section is provided on the mounting surface of the outer cylinder; The reinforcing portion extends from the through hole of the mounting base to the edge of the mounting base; The reinforcing parts are provided in multiple portions and are distributed at intervals along the circumference of the mounting base; One of the reinforcing parts is equipped with a clearance groove.

[0009] Furthermore, the outer cylinder mounting surface includes a first outer cylinder mounting surface and a second outer cylinder mounting surface; The first outer cylinder mounting surface is located on the outer periphery of the second outer cylinder mounting surface; There is a height difference between the first outer cylinder mounting surface and the second outer cylinder mounting surface; The height of the reinforcing section gradually increases from the first outer cylinder mounting surface to the second outer cylinder mounting surface.

[0010] Furthermore, a notch is provided on the mounting surface of the second outer cylinder; The notch penetrates both the outer cylinder mounting surface and the motor mounting surface; The notch extends radially along the mounting base; The notches are provided in multiple quantities and are distributed at intervals along the circumference of the mounting base; The clearance groove is located near one of the gaps, and the clearance groove is smaller than the gap.

[0011] Furthermore, the notch has a certain radial extension length; The radial extension length of the notch is greater than the radial extension length of the clearance groove.

[0012] Furthermore, the outer periphery of the through hole of the mounting base protrudes to form a first convex ridge; The reinforcing portion extends from the edge of the mounting base to the outer peripheral wall of the first protruding ridge.

[0013] Furthermore, the reinforcing part includes The first reinforcing part is disposed on the mounting surface of the first outer cylinder; Second reinforcing section; disposed on the mounting surface of the second outer cylinder; The first reinforcing part gradually rises and extends from the edge of the mounting base toward the second outer cylinder mounting surface, and one end of the first reinforcing part near the second outer cylinder mounting surface is flush with or higher than the second outer cylinder mounting surface. The second reinforcing part extends gradually downward from the center of the mounting base toward the first outer cylinder mounting surface, and the end of the second reinforcing part near the first outer cylinder mounting surface is flush with or higher than the second outer cylinder mounting surface.

[0014] Furthermore, the mounting base includes a second mounting portion and a first mounting portion located on the outer periphery of the second mounting portion; The first mounting portion includes a protrusion and a recess; The protrusion and the recess are alternately arranged along the circumference of the first mounting portion; The reinforcing portion extends from the end of the protrusion to the outer peripheral wall of the first convex ridge.

[0015] Furthermore, a reinforcing rib is provided between the second outer cylinder mounting surface and the first protruding ridge; Multiple reinforcing ribs are provided; Each reinforcing rib is spaced apart circumferentially along the first protruding ridge; The reinforcing part is located between two adjacent reinforcing ribs.

[0016] Furthermore, the second outer cylinder mounting surface and the first protruding ridge have an arc-shaped transition; The reinforcing rib is inclinedly disposed between the second outer cylinder mounting surface and the first protruding rib; The reinforcing rib smoothly transitions between the second outer cylinder mounting surface and the first protruding rib.

[0017] 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.

[0018] By adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art.

[0019] 1. The direct drive motor mounting structure of the drum washing machine of this utility model, by setting a reinforcing part, extends from the edge of the mounting base to one side of the rotor shaft. During installation, the reinforcing part can cooperate with the groove at the bottom of the outer drum to achieve positioning and limiting of the mounting base, thereby improving the connection strength between the mounting base and the outer drum. At the same time, the reinforcing part extends from the edge of the mounting base to the center of the mounting base, improving the strength of the mounting base.

[0020] 2. The direct drive motor mounting structure of the drum washing machine of this utility model has extensions at the connection between the reinforcing part and the first protruding ridge, the connection between the reinforcing part and the first outer drum mounting surface, and the connection between the reinforcing part and the second outer drum mounting surface, which increases the contact area at the connection and further improves the connection strength.

[0021] 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.

[0022] Meanwhile, this utility model has a simple structure, significant effects, and is suitable for widespread use.

[0023] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0024] 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 schematic diagram of the direct drive motor mounting structure of the drum washing machine of this utility model; Figure 2 yes Figure 1 Enlarged view of point A in the middle; Figure 3 This is a front view of the direct drive motor mounting structure of the drum washing machine of this utility model; 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 This is a bottom view of the direct drive motor mounting structure of the drum washing machine of this utility model.

[0025] In the figure: 1. Mounting base; 11. Mounting surface; 111. Outer cylinder mounting surface; 1111. First outer cylinder mounting surface; 1112. Second outer cylinder mounting 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; 51. First reinforcing part; 52. Second reinforcing part; 53. Extension; 54. Clearance groove; 6. Fixing part; 7. First stator mounting structure; 8. Second stator mounting structure; 9. Notch.

[0026] 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

[0027] 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.

[0028] 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.

[0029] 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.

[0030] 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.

[0031] 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.

[0032] 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.

[0033] 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.

[0034] 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.

[0035] 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.

[0036] 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.

[0037] 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 111 that abuts against the outer drum and a motor mounting surface 112 for mounting the direct drive motor. A first protruding rib 14 extends outward from the outer drum mounting surface 111 at the center of the mounting base 1, and a second protruding rib 16 extends outward from the motor mounting surface 112 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.

[0038] 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.

[0039] 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.

[0040] 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.

[0041] 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 used to connect the inner cylinder.

[0042] 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.

[0043] 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.

[0044] 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.

[0045] Because the direct-drive motor has a high rotational speed, reaching over 1,000 revolutions per minute, and the clothes impact the inner drum during washing, a significant impact force is generated. Therefore, high strength is required for the motor mounting bracket 1. By incorporating reinforcing ribs 15, the first mounting part 12, the second mounting part 13, and the reinforcing ribs 15 are integrated into one unit, stress concentration is avoided, and the overall strength is improved.

[0046] 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.

[0047] 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 motor mounting base 1.

[0048] 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.

[0049] 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.

[0050] In this embodiment, a gap 9 is formed between two adjacent reinforcing units. The gap 9 has several advantages: First, the gap 9 can be used for heat dissipation; second, the gap 9 can reduce material usage, reduce weight while maintaining structural strength, and reduce costs; third, the gap 9 can also disperse stress and avoid stress concentration; fourth, the gap 9 can play a role in avoiding interference between the mounting base 1 and the bottom of the outer cylinder during installation.

[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 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 motor mounting base 1.

[0052] In this embodiment, a notch 9 can also be provided on the first mounting part 12, which can reduce material usage, reduce weight while maintaining structural strength, reduce cost, disperse stress, avoid stress concentration, and achieve an avoidance effect, preventing the mounting seat 1 from interfering with the bottom of the outer cylinder during installation.

[0053] 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. The reinforcing part 5 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, that is, from the through hole of the mounting base 1 to the edge of the mounting base 1.

[0054] 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.

[0055] 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.

[0056] 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.

[0057] In this embodiment, the bottom of the outer cylinder is typically provided with an interlaced rib structure to improve its strength. Depending on the actual situation, the reinforcing part 5 can be designed to avoid obstacles. One of the reinforcing parts 5 is provided with an obstacle avoidance groove 54.

[0058] In this embodiment, the reinforcing part 5 protrudes from the outer cylinder mounting surface 111. Specifically, the bottom of the reinforcing part 5 is connected to the outer cylinder mounting surface 111, and the reinforcing part 5 extends a certain distance from the connection point away from the outer cylinder mounting surface 111, thereby giving the reinforcing part 5 a certain thickness, i.e., protruding from the surface of the mounting base 1. After the reinforcing part 5 is inserted into the slot, the outer cylinder mounting surface 111 can fit snugly against the bottom of the outer cylinder, improving the tightness of the connection.

[0059] In this embodiment, the reinforcing part 5 extends from the edge of the mounting base 1 to the outer peripheral wall of the first protruding ridge 14, giving the reinforcing part 5 sufficient length to increase the contact area between the reinforcing part 5 and the outer cylinder, thereby further improving the connection strength. Moreover, the reinforcing part 5 extends from the center of the mounting base 1 to the edge of the mounting base 1, improving the strength of the mounting base 1.

[0060] Furthermore, the reinforcing part 5 is connected in sequence to the first mounting part 12, the reinforcing rib 15, the second mounting part 13 and the first protruding rib 14, that is, the reinforcing part 5 connects the first mounting part 12, the reinforcing rib 15, the second mounting part 13 and the first protruding rib 14 together, thereby improving the overall strength.

[0061] 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 first mounting portion 12, and the second outer cylinder mounting surface 1112 is located on the reinforcing rib 15. There is a height difference between the first outer cylinder mounting surface 1111 and the second outer cylinder mounting surface 1112. The reinforcing portion 5 is inclined from the first protruding ridge 14 to the edge of the first mounting portion 12. Specifically, the reinforcing portion 5 is generally triangular, which provides higher stability. Preferably, the height of the reinforcing portion 5 gradually increases from the first outer cylinder mounting surface 1111 to the second outer cylinder mounting surface 1112.

[0062] 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. A reinforcing portion 5 is located between two adjacent reinforcing ribs 4. By providing reinforcing ribs 4, the strength is further improved.

[0063] In this embodiment, the second outer cylinder mounting surface 1112 and the first protruding ridge 14 form an arc-shaped transition. The reinforcing rib 4 is obliquely disposed between the second outer cylinder mounting surface 1112 and the first protruding ridge 14, and the reinforcing rib 4 smoothly transitions between the second outer cylinder mounting surface 1112 and the first protruding ridge 14. Through the above design, the reinforcing rib 4 is crescent-shaped, and it can form a tight surface contact with the second outer cylinder mounting surface 1112 and the first protruding ridge 14, greatly increasing the contact area and improving the connection strength.

[0064] In this embodiment, the notch 9 penetrates the outer cylinder mounting surface 111 and the motor mounting surface 112. The notch 9 extends radially along the mounting base 1, and there are multiple notches 9, which are distributed at intervals along the circumference of the mounting base 1. The clearance groove 54 is located near one of the notches 9, and the clearance groove 54 is smaller than the notch 9. By setting the clearance groove 54, the notch 9 can be avoided, ensuring that the size of the notch 9 meets the actual requirements, and also preventing the notch 9 from affecting the strength of the reinforcing part 5.

[0065] In this embodiment, the notch 9 has a certain radial extension length, which is greater than the radial extension length of the clearance groove 54.

[0066] Furthermore, the reinforcing part 5 includes a first reinforcing part 51 and a second reinforcing part 52. The first reinforcing part 51 is disposed on the first outer cylinder mounting surface 1111, and the second reinforcing part 52 is disposed on the second outer cylinder mounting surface 1112. The first reinforcing part 51 gradually rises and extends from the edge of the mounting base 1 toward the second outer cylinder mounting surface 1112, and the end of the first reinforcing part 51 near the second outer cylinder mounting surface 1112 is flush with or higher than the second outer cylinder mounting surface 1112. The second reinforcing part 52 gradually decreases and extends from the center of the mounting base 1 toward the first outer cylinder mounting surface 1111, and the end of the second reinforcing part 52 near the first outer cylinder mounting surface 1111 is flush with or higher than the second outer cylinder mounting surface 1112.

[0067] In this embodiment, taking one of the reinforcing parts 5 as an example, the following further explanation is provided: The first reinforcing part 51 first extends from the outer edge of the first mounting part 12, passes through the middle of the first mounting part 12, and then extends through the inner edge of the first mounting part 12. The extension angle of the first extension is greater than the extension angle of the second extension. The end of the second reinforcing part 52 near the first protruding ridge 14 is substantially parallel to the second outer cylinder mounting surface 1112.

[0068] In this embodiment, the first mounting portion 12 includes a protrusion 121 and a recess 122, which are alternately arranged along the circumference of the first mounting portion 12. The reinforcing portion 5 extends from the end of the protrusion 121 to the outer peripheral wall of the first convex ridge 14. With the above arrangement, the length of the reinforcing portion 5 can be maximized.

[0069] In this embodiment, extensions 53 are provided at the connection between the reinforcing part 5 and the first protruding ridge 14, the connection between the reinforcing part 5 and the first outer cylinder mounting surface 1111, and the connection between the reinforcing part 5 and the second outer cylinder mounting surface 1112, which increases the contact area at the connection and further improves the connection strength.

[0070] In this embodiment, the first mounting part 12 is provided with a plurality of fixing parts 6, which can connect the motor mounting base 1 and the bottom of the outer cylinder to achieve a fixing effect.

[0071] Direct drive motors can be divided into external stator type and internal stator type. The fixed position of the stator on the motor mounting base 1 is different for external stator type motors and internal stator type motors. When installing different types of direct drive motors, it is necessary to select the appropriate motor mounting base 1.

[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" design and improving the versatility of the motor mounting bracket 1.

[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 motor mounting bases 1, thus improving the versatility of the motor mounting base 1.

[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 circumferential direction of the rotor shaft 2.

[0080] In this embodiment, the first stator mounting structure 7 can be disposed at the connection between the first mounting part 12 and the reinforcing rib 15, and the first stator mounting structure 7 is fitted to the inner peripheral wall of the first mounting part 12. 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 motor mounting base 1. This allows for flexible installation of different types of direct drive motors according to actual needs, eliminating the need to fabricate different motor mounting bases and improving the versatility of the motor mounting base.

[0082] 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.

[0083] 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 The mounting base (1) has a motor mounting surface (112) on one side for mounting a direct drive motor and an outer cylinder mounting surface (111) on the other side for abutting against the outer cylinder. A reinforcing part (5) is provided on the outer cylinder mounting surface (111); The reinforcing part (5) extends from the through hole of the mounting base (1) to the edge of the mounting base (1); The reinforcing part (5) is provided in multiple portions and is distributed at intervals along the circumference of the mounting base (1); One of the reinforcing parts (5) is provided with a clearance groove (54).

2. The direct drive motor mounting structure of the drum washing machine according to claim 1, characterized in that: 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); There is a height difference between the first outer cylinder mounting surface (1111) and the second outer cylinder mounting surface (1112); The height of the reinforcing part (5) gradually increases from the first outer cylinder mounting surface (1111) to the second outer cylinder mounting surface (1112).

3. The direct drive motor mounting structure of the drum washing machine according to claim 2, characterized in that: A notch (9) is provided on the second outer cylinder mounting surface (1112); The notch (9) penetrates the outer cylinder mounting surface (111) and the motor mounting surface (112); The notch (9) is provided to extend radially along the mounting base (1); Multiple notches (9) are provided and are distributed at intervals along the circumference of the mounting base (1); The clearance groove (54) is disposed near one of the notches (9), and the clearance groove (54) is smaller than the notch (9).

4. The direct drive motor mounting structure of the drum washing machine according to claim 3, characterized in that: The notch (9) has a certain radial extension length; The radial extension length of the notch (9) is greater than the radial extension length of the clearance groove (54).

5. The direct drive motor mounting structure of the drum washing machine according to any one of claims 2-4, characterized in that: The outer periphery of the through hole of the mounting base (1) protrudes to form a first protruding ridge (14); The reinforcing part (5) extends from the edge of the mounting base (1) to the outer peripheral wall of the first protrusion (14).

6. The direct drive motor mounting structure of the drum washing machine according to any one of claims 2-4, characterized in that: The reinforcing part (5) includes The first reinforcing part (51) is disposed on the first outer cylinder mounting surface (1111); The second reinforcing part (52) is disposed on the second outer cylinder mounting surface (1112); The first reinforcing part (51) extends gradually upward from the edge of the mounting base (1) toward the second outer cylinder mounting surface (1112), and one end of the first reinforcing part (51) near the second outer cylinder mounting surface (1112) is flush with or higher than the second outer cylinder mounting surface (1112). The second reinforcing part (52) extends gradually downward from the center of the mounting base (1) toward the first outer cylinder mounting surface (1111), and the end of the second reinforcing part (52) near the first outer cylinder mounting surface (1111) is flush with or higher than the second outer cylinder mounting surface (1112).

7. The direct drive motor mounting structure of the drum washing machine according to claim 5, characterized in that: The mounting base (1) includes a second mounting portion (13) and a first mounting portion (12) located on the outer periphery of the second mounting portion (13); The first mounting portion (12) includes a protrusion (121) and a recess (122); The protrusion (121) and the recess (122) are alternately arranged along the circumference of the first mounting portion (12); The reinforcing part (5) extends from the end of the protrusion (121) to the outer peripheral wall of the first convex ridge (14).

8. The direct drive motor mounting structure of the drum washing machine according to claim 5, characterized in that: A reinforcing rib (4) is provided between the second outer cylinder mounting surface (1112) and the first protruding rib (14); The reinforcing ribs (4) are provided in multiple forms; Each reinforcing rib (4) is spaced apart circumferentially along the first protruding ridge (14); The reinforcing part (5) is located between two adjacent reinforcing ribs (4).

9. The direct drive motor mounting structure of the drum washing machine according to claim 8, characterized in that: The second outer cylinder mounting surface (1112) and the first protruding ridge (14) have an arc-shaped transition; The reinforcing rib (4) is inclinedly disposed between the second outer cylinder mounting surface (1112) and the first protruding rib (14); The reinforcing rib (4) smoothly transitions between the second outer cylinder mounting surface (1112) and the first protruding rib (14).

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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