Washing machine and control method thereof

Abstract

The present invention provides a washing machine and a control method thereof. The washing machine includes a drum, a pulsator, and a magnetic gear composite motor. The magnetic gear composite motor includes a rotor assembly, a magnetic adjustment ring assembly, and a stator assembly. The rotor shaft is coaxially connected to the pulsator shaft, which is connected to the pulsator. The pulsator shaft is sleeved on the outside of the pulsator shaft, which is connected to the drum. A clutch device includes a main body connected to a first gear and a second gear. The main body can be driven to swing about a fulcrum to achieve switching between a first position and a second position. In the first position, the first gear is driven to connect to the magnetic adjustment ring assembly so that the drum shaft rotates along with the magnetic adjustment ring assembly. In the second position, the second gear is driven to connect to the rotor shaft so that the drum shaft rotates along with the rotor shaft. In the present invention, the drum shaft is switchably and directly connected to the rotor shaft or the magnetic adjustment ring assembly, thereby achieving simultaneous rotation of the drum and the pulsator, reducing mechanical losses, and improving the energy efficiency of the washing machine.

Description

Technical Field

[0001] The present invention belongs to the technical field of household appliances, and in particular relates to a washing machine and a control method thereof. Background Art

[0002] In current drum washing machines, a motor + planetary gear is generally used for deceleration, clutching, and transmission. The multi-stage deceleration and transmission of the planetary gear makes the structure extremely complex and reduces the transmission efficiency of the planetary gear, thereby reducing the efficiency of the entire transmission mechanism.

[0003] In some related technologies, some washing machines do not use planetary gears for speed reduction, but instead use dual motors to achieve dual working conditions or dual power for washing and dehydration. This technical solution undoubtedly increases the cost and structural complexity of the washing machine. Summary of the Invention

[0004] Therefore, the present invention provides a washing machine and a control method thereof, which can solve the technical problems in the prior art that the differential speed adjustment between the drum and the impeller in the washing machine is achieved by a planetary gear set and other devices in conjunction with a clutch device, resulting in a complex structure, large mechanical transmission loss, and low transmission efficiency.

[0005] In order to solve the above problems, the present invention provides a washing machine, comprising a drum and a pulsator, and also comprising a magnetic gear compound motor and a clutch device, wherein the magnetic gear compound motor comprises a rotor assembly, a magnetic adjustment ring assembly coaxially sleeved outside the rotor assembly, and a stator assembly coaxially sleeved outside the magnetic adjustment ring assembly, wherein the first end of the rotor shaft of the rotor assembly is coaxially connected to the pulsator shaft, the pulsator shaft is connected to the pulsator, the outer gap of the pulsator shaft is sleeved with a drum shaft, the first end of the drum shaft is connected to the drum, and the clutch device comprises a main body, and the main body is connected to a first gear and The second gear, the main body has a first position away from the rotor shaft and a second position close to the rotor shaft, the main body can be driven to swing around a fulcrum to achieve its switching between the first position and the second position, in the first position, the first gear is driven connected to the magnetic adjustment ring assembly and the second gear is separated from the rotor shaft so that the roller shaft rotates following the magnetic adjustment ring assembly, in the second position, the first gear is separated from the magnetic adjustment ring assembly and the second gear is driven connected to the rotor shaft so that the roller shaft rotates following the rotor shaft.

[0006] In some embodiments, the main body includes a main rod and a first branch rod and a second branch rod connected to the first end of the main rod, the first gear is fixedly connected to the free end of the first branch rod, and the second gear is fixedly connected to the free end of the second branch rod. The clutch device also includes a clutch base plate, the second end of the main rod is hinged to the side of the clutch base plate facing the magnetic gear compound motor, and the clutch base plate has a first through hole passing through both ends thereof, the roller shaft is coaxially inserted in the first through hole, and the hole wall of the first through hole is meshed with the roller shaft.

[0007] In some embodiments, a plane perpendicular to the side of the clutch base plate facing the magnetic gear compound motor and passing through a diameter of the clutch base plate is a first plane, and the main body can be driven to swing inward and outward along the diameter direction of the clutch base plate within the first plane.

[0008] In some embodiments, in the first position, a central axis of the first branch rod is parallel to the rotor shaft, and in the second position, a central axis of the second branch rod is parallel to the rotor shaft.

[0009] In some embodiments, a fixing structure is further provided on the clutch base plate, and the fixing structure is used to fix the position of the main body when the main body is in the first position and the second position.

[0010] In some embodiments, the fixed structure includes a first slider and a second slider arranged relative to each other, the first slider and the second slider are symmetrically arranged about the first plane and are both slidingly connected to the clutch base plate, and the first slider and the second slider can be driven to move toward or away from the main body at the same time.

[0011] In some embodiments, a matching concave-convex structure is formed on the wall surface where the first slider contacts the main body; and / or a matching concave-convex structure is formed on the wall surface where the second slider contacts the main body.

[0012] In some embodiments, the magnetic tuning ring assembly includes a first magnetic ring end cover, which is rotatably mounted on the rotor shaft. The center hole wall of the first magnetic ring end cover has a first meshing portion, and the rotor shaft has a second meshing portion. In the first position, the first meshing portion is engaged with the first gear and the second meshing portion is disengaged from the second gear. In the second position, the second meshing portion is engaged with the second gear and the first meshing portion is disengaged from the first gear.

[0013] The present invention also provides a method for controlling a washing machine, which is used to control the operation of the washing machine, comprising the following steps:

[0014] Get the operating mode of the washing machine;

[0015] The clutch device is controlled to operate according to the acquired operating mode to realize the switching of the drum shaft between the high speed state and the low speed state.

[0016] In some embodiments, when the operation mode is a washing mode, the main body is controlled to be in the first position; or,

[0017] When the operation mode is the dehydration mode, the main body is controlled to be in the second position.

[0018] The present invention provides a washing machine and a control method thereof. Compared with the dual-drive washing machine in the prior art that adopts a planetary gear set combined with a clutch device, the present invention adopts a magnetic gear compound motor and utilizes the differential speed characteristic of the rotor assembly and the magnetic adjustment ring assembly of the magnetic gear compound motor during operation. The drum shaft and the rotor shaft or the magnetic adjustment ring assembly are switchably directly driven and connected, achieving the design purpose of differential rotation or synchronous high-speed rotation of the drum and the impeller. The structure is simple and easy to assemble, effectively reducing mechanical losses during power transmission and improving the energy efficiency of the washing machine. Compared with the dual-motor drive structure in the prior art, the structure of the present invention can save product manufacturing costs. The clutch control of the clutch device in the present invention is achieved by switching the position of the swingable main body, and the position switching mechanism is simple. At the same time, it should be noted that the magnetic gear compound motor has the characteristics of low speed and high torque, which can ensure that the drum and the impeller have sufficient rotational power. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Schematic diagram of the structure of some components of a washing machine according to an embodiment of the present invention (partial structural decomposition);

[0020] Figure 2 for Figure 1 A partial enlarged view of the clutch device (structural decomposition);

[0021] Figure 3 for Figure 1 Schematic diagram of the shaft cross section of the magnetic gear compound motor (excluding components such as the motor housing);

[0022] Figure 4 for Figure 1 Schematic diagram of the three-dimensional structure of the rotor shaft;

[0023] Figure 5 for Figure 1 A schematic diagram of the three-dimensional structure of the first magnetic ring end cover;

[0024] Figure 6 for Figure 1 Schematic diagram of the three-dimensional structure of the drum shaft;

[0025] Figure 7 for Figure 1 Schematic diagram of the three-dimensional structure of the impeller shaft;

[0026] Figure 8 for Figure 1 A schematic diagram of the three-dimensional structure of the clutch base plate;

[0027] Figure 9 Schematic diagram of the clutch device of the washing machine of the present invention when it is in the washing mode (the main body is in the first position);

[0028] Figure 10 This is a schematic diagram of the clutch device when the washing machine of the present invention is in the dehydration mode (the main body is in the second position).

[0029] The reference numerals indicate:

[0030] 111, rotor shaft; 1111, second meshing portion; 1112, seventh meshing portion; 112, rotor core; 114, rotor magnet; 121, first magnetic ring end cap; 1211, first meshing portion; 123, modulation ring; 1231, modulation pole piece; 1232, modulation groove; 1233, modulation magnetic bridge; 131, stator core; 132, stator magnet; 133, stator winding; 2, clutch device; 21, main body; 21 1. Main rod; 212. First branch rod; 213. Second branch rod; 221. First gear; 222. Second gear; 23. Clutch base plate; 231. First through hole; 2311. Fifth meshing portion; 24. Flat key; 25. Mounting shaft; 26. Hinge; 31. Impeller shaft; 311. Eighth meshing portion; 32. Drum shaft; 321. Sixth meshing portion; 41. Motor housing; 42. Motor rear end cover; 43. Motor front end cover. DETAILED DESCRIPTION

[0031] See also Figures 1 to 10As shown, according to an embodiment of the present invention, a washing machine is provided, comprising a drum and a pulsator (both not shown in the figure), a magnetic gear compound motor (not labeled in the figure), and a clutch device 2 (not labeled in the figure). The magnetic gear compound motor comprises a rotor assembly (not labeled in the figure), a magnetic adjustment ring assembly (not labeled in the figure) coaxially mounted outside the rotor assembly, and a stator assembly (not labeled in the figure) coaxially mounted outside the magnetic adjustment ring assembly. It can be understood that, according to the working characteristics of the magnetic gear compound motor, the stator assembly in this technical solution is fixedly connected to the fixed structure of the washing machine (such as the outer barrel of the washing machine). In this way, after the stator assembly is controlled to be energized, the rotor assembly and the magnetic adjustment ring assembly will rotate in the same direction, and the speed of the rotor assembly is higher than the speed of the magnetic adjustment ring assembly. The first end of the rotor shaft 111 of the rotor assembly is coaxially connected to the pulsator shaft 31, the pulsator shaft 31 is connected to the pulsator, the outer gap of the pulsator shaft 31 is mounted with a drum shaft 32, the first end of the drum shaft 32 is connected to the drum, and the clutch device 2 comprises a main body 2 1. A first gear 221 and a second gear 222 are connected to the main body 21. The main body 21 has a first position away from the rotor shaft 111 and a second position close to the rotor shaft 111. The main body 21 can be driven to swing around a fulcrum to achieve its switching between the first position and the second position. In the first position, the first gear 221 is driven to be connected to the magnetic tuning ring assembly and the second gear 222 is separated from the rotor shaft 111 so that the drum shaft 32 rotates along with the magnetic tuning ring assembly. In the second position, the first gear 221 is separated from the magnetic tuning ring assembly and the second gear 222 is driven to be connected to the rotor shaft 111 so that the drum shaft 32 rotates along with the rotor shaft 111. In this way, the drum shaft 32 has a high-speed state driven to rotate by the rotor shaft 111 (specifically corresponding to the dehydration mode of the washing machine) and a low-speed state driven to rotate by the magnetic tuning ring assembly (specifically corresponding to the washing mode of the washing machine). The switching of the drum shaft 32 between the high-speed state and the low-speed state is achieved by switching the position of the main body 21.

[0032] In this technical solution, compared to the prior art dual-drive washing machine structure that uses a planetary gear set in conjunction with a clutch device 2, the present invention utilizes a magnetic gear composite motor and exploits the differential speed characteristics of the rotor assembly and the magnetic tuning ring assembly of the magnetic gear composite motor during operation. The drum shaft is directly and switchably connected to the rotor shaft or the magnetic tuning ring assembly, achieving the design goal of differential rotation or synchronous high-speed rotation of the drum and impeller. The simple structure facilitates assembly, effectively reduces mechanical losses during power transmission, and improves the energy efficiency of the washing machine. Compared with the prior art dual-motor drive structure, the structure of the present invention can save product manufacturing costs. More importantly, the clutch control of the clutch device 2 in the present invention is achieved by switching the position of the swingable main body 21, and the position switching mechanism is simple. It should also be noted that the magnetic gear composite motor has the characteristics of low speed and high torque, which can ensure that the drum and impeller have sufficient rotational power.

[0033] See also Figure 1 and Figure 2As shown, the magnetic gear composite motor includes a motor housing 41 and a motor rear end cover 42 and a motor front end cover 43 respectively connected to the two ends thereof. The stator assembly includes a stator core 131 fixedly connected to the inner wall of the motor housing 41 by interference fit. The stator core 131 is provided with a plurality of stator magnets 132 on the side facing the magnetic adjustment ring assembly. The stator winding 133 is wound on the yoke of the stator core 131. The rotor assembly includes the aforementioned rotor shaft 111 and a rotor core 112 sleeved thereon. A plurality of rotor magnets 114 are attached to the outer peripheral wall of the rotor core 112. The magnetic adjustment ring assembly is located in the air gap between the stator and rotor, and has no contact with the stator assembly and the rotor assembly (that is, the shape The magnetic modulation ring assembly includes a modulation ring 123. In a specific embodiment, the modulation ring 123 includes modulation pole pieces 1231, modulation grooves 1232, and modulation magnetic bridges 1233. The modulation pole pieces 1231 and modulation grooves 1232 are evenly spaced along the circumference. All modulation pole pieces 1231 are connected by a circular modulation magnetic bridge to form a whole. The number of modulation pole pieces 1231 is Pm. When the stator winding is energized, under the combined action of the alternating magnetic field and the various iron cores and magnets, the rotor assembly is driven to rotate at high speed in one direction of rotation, while the magnetic modulation ring assembly is driven to rotate at low speed (lower than the rotor assembly's speed) in the same direction as the rotor assembly's rotation. Specifically, to reduce eddy current losses, the rotor core 112, modulation ring 123, and stator core 131 are all laminated from soft magnetic materials (such as silicon steel sheets). The rotor core 112 is interference-connected with the rotor shaft 111, serving as the output shaft H. The output shaft H rotates at a speed of Vh. The modulation ring 123 is screw-fastened to the first magnetic ring end cap 121, serving as the output shaft L. The output shaft L rotates at a speed of Vl. The number of magnetic pole pairs of the rotor magnet 114 is Pi. The modulation ring 123 is coaxially mounted on the outside of the rotor core 112. The number of magnetic pole pairs of the stator magnet 132 is Po. The number of magnetic pole pairs generated by the rotating magnetic field of the stator winding 133 is the same as that of the rotor magnet 114, and Pi, Pm, and Po satisfy Pi + Po = Pm. The stator magnets 132 are evenly spaced along the circumference. All stator magnets 132 are magnetized in the same direction. Both the rotor magnet 114 and the stator magnet 132 are magnetized radially, with adjacent magnets having opposite polarities.

[0034] See Figure 2As shown, in some embodiments, the main body 21 includes a main rod 211 and a first branch rod 212 and a second branch rod 213 connected to the first end of the main rod 211, forming a roughly Y-shaped structure in appearance, the first gear 221 is fixedly connected to the free end of the first branch rod 212, the second gear 222 is fixedly connected to the free end of the second branch rod 213, the clutch device 2 also includes a clutch base plate 23, the second end of the main rod 211 is hinged to the side of the clutch base plate 23 facing the magnetic gear compound motor, and the clutch base plate 23 has a through The first through hole 231 at both ends is coaxially inserted into the first through hole 231, and the hole wall of the first through hole 231 is meshed with the roller shaft 32. Specifically, a fifth meshing portion 2311 is constructed on the hole wall of the first through hole 231, and a sixth meshing portion 321 is correspondingly constructed on the roller shaft 32. The fifth meshing portion 2311 and the sixth meshing portion 321 are always meshed, ensuring that the clutch base plate 23 and the roller shaft 32 always rotate synchronously. The meshing connection method can facilitate the assembly and production of the two. The first gear 221 and the second gear 222 can be integrally formed at the free ends of the first branch rod 212 and the second branch rod 213, in a Figure 2 In the illustrated embodiment, the two gears are fixedly connected to their respective branch rods via mounting shafts 25 and flat keys 24. Specifically, corresponding blind holes are formed at the free ends of the first branch rod 212 and the second branch rod 213. The mounting shaft 25 is inserted into the blind holes, and the gears are fitted around the outside of the mounting shaft 25. The flat keys 24 restrict circumferential displacement of the fitting position between the mounting shaft and the gears, thereby enabling a removable connection between the gears and the main member 21, such as for later maintenance and replacement of the gears. The second end of the main rod 211 is hingedly connected to the clutch base plate 23 via a hinge 26. Specifically, the hinge 26 may include two spaced-apart supports fixedly connected to the clutch base plate 23. The main rod 211 is a rectangular cross-section rod inserted into the gap between the two supports and pivotally connected to the two supports via corresponding pivot pins. As can be understood, the main member 21 has only the freedom to swing left and right along the direction guided by the gap between the two supports, making the position switching of the main member 21 controllable, stable and reliable. Specifically, the swinging of the main member 21 can be performed by an electric push rod, which is fixedly connected to the clutch base plate 23. The free end of the push rod is hingedly connected to the main member 21. The hinge point forms an eccentric distance with the hinge point of the aforementioned support, thereby converting the linear reciprocating motion of the push rod into the swinging of the main member 21. In a preferred embodiment, the first branch rod 212 and the second branch rod 213 are symmetrical about the main rod 211.

[0035] Define the plane perpendicular to the side of the clutch base plate 23 facing the magnetic gear compound motor and passing through a diameter of the clutch base plate 23 as the first plane. The main body 21 can be driven to swing in and out along the diameter direction of the clutch base plate 23 within the first plane. At this time, the swing path of the main body 21 is actually in the diameter direction of the rotor shaft 111 and the first magnetic ring end cover, and the position switching path is the shortest. Figure 9 and Figure 10 As shown, in the first position, the central axis of the first branch rod 212 is parallel to the rotor shaft 111, and in the second position, the central axis of the second branch rod 213 is parallel to the rotor shaft 111. This ensures that at the corresponding position, the drum shaft 32 follows the corresponding modulation ring 123 or the rotor shaft 111 to rotate smoothly and steadily, and in this state, the gears are more reliably engaged with the corresponding positions, ensuring reliable power transmission.

[0036] In order to further improve the smoothness and reliability of the rotational power transmission, a fixing structure (not shown in the figure) is also provided on the clutch base plate 23. The fixing structure is used to fix the position of the main body 21 when the main body 21 is in the first position and the second position, thereby preventing the gear from being disengaged from the corresponding component during the rotation process. In a specific embodiment, the fixing structure includes a first slider (not shown in the figure) and a second slider (not shown in the figure) arranged opposite to each other. The first slider and the second slider are symmetrically arranged about the aforementioned first plane and are both slidably connected to the clutch base plate 23 (the clutch base plate 23 has a corresponding T-shaped slot to prevent the slider from escaping from the slot. The T-shaped slot is not shown in the figure), and the first slider and the second slider can be driven to move toward or away from the main body 21 at the same time. Specifically, the sliding of the first slider and the second slider can be achieved by using two correspondingly driven rotary motors. The free end of the rotary motor's shaft is threadedly connected to the slider, thereby converting the rotary motion of the rotary motor into a linear reciprocating motion of the slider. It can be understood that the first slider and the second slider moving toward each other can effectively clamp the two opposite sides of the main rod 211 of the main body 21, so that the main body 21 is stably in the first position and the second position, while the first slider and the second slider moving away from each other can contact the clamping of the main body 21, thereby ensuring smooth switching of the main body 21 between the first position and the second position.

[0037] In a preferred embodiment, a matching concave-convex structure is formed on the wall surface where the first slider contacts the main body 21; and / or a matching concave-convex structure is formed on the wall surface where the second slider contacts the main body 21. The aforementioned concave-convex structure makes the clamping between the first slider and the second slider and the main body 21 more reliable, preventing the main body 21 from changing its position due to the radial force of the engaging parts when it is in the first position or the second position, and can reduce the force applied to the aforementioned electric push rod, effectively preventing damage to the electric push rod.

[0038] See also Figure 1 and Figure 5 As shown, the magnetic ring assembly includes a first magnetic ring end cover 121, which is rotatably mounted on the rotor shaft 111 and is fixedly connected to the modulation ring 123 as a whole. Figure 5 As shown, the center hole wall of the first magnetic ring end cap 121 has a first meshing portion 1211, and the rotor shaft 111 has a second meshing portion 1111. In a first position, the first meshing portion 1211 is engaged with the first gear 221, and the second meshing portion 1111 is disengaged from the second gear 222. In a second position, the second meshing portion 1111 is engaged with the second gear 222, and the first meshing portion 1211 is disengaged from the first gear 221. Smooth switching between the first and second meshing portions 1211, 1111, and the first and second gears 221 and 222 is achieved by meshing or not meshing. The magnetic tuning ring assembly also includes a second magnetic ring end cover (not shown in the figure) connected to the second end of the modulation ring 123. The second magnetic ring end cover can be rotatably mounted on the rotor shaft 111 (through corresponding bearings), and together with the first magnetic ring end cover 121, a clamp for the modulation ring 123 is formed. The axial position of the modulation ring 123 can be reliably limited by the first magnetic ring end cover 121 and the second magnetic ring end cover, and the structure of the magnetic tuning ring assembly is more stable and reliable.

[0039] The first end of the aforementioned rotor shaft 111 and the impeller shaft 31 can be reliably connected in a detachable manner, for example, by the engagement of the seventh engagement portion 1112 with the eighth engagement portion 311 .

[0040] The first meshing portion 1211 , the second meshing portion 1111 , the fifth meshing portion 2311 , the sixth meshing portion 321 , the seventh meshing portion 1112 and the eighth meshing portion 311 may all adopt a spline tooth structure, which has a greater torque transmission capability.

[0041] According to an embodiment of the present invention, a method for controlling a washing machine is further provided, for controlling the operation of the washing machine, comprising the following steps:

[0042] Get the operating mode of the washing machine;

[0043] The clutch device 2 is controlled to operate according to the acquired operating mode to achieve the switching of the drum shaft 32 between the high speed state and the low speed state.

[0044] Specifically, when the operating mode is the washing mode, the control main body 21 is in the first position. At this time, according to the aforementioned structure, the drum shaft 32 is engaged with the first magnetic ring end cover 121, and the drum shaft 32 rotates at a low speed following the magnetic adjustment ring assembly, while the impeller shaft 31 rotates at a high speed following the rotor shaft 111, and the impeller shaft 31 and the drum shaft 32 have the same rotation direction, that is, the drum and the impeller rotate at a differential speed, and the clothes are stirred and washed, increasing the friction between the clothes, thereby improving the washing ratio; or, when the operating mode is the dehydration mode, the control main body 21 is in the second position. At this time, according to the aforementioned structure, the drum shaft 32 is engaged with the rotor shaft 111, and the drum shaft 32 and the impeller shaft 31 both rotate at a high speed following the rotor shaft 111, and the impeller shaft 31 and the drum shaft 32 have the same rotation direction, ensuring the dehydration effect.

[0045] It is easy for those skilled in the art to understand that, under the premise of no conflict, the advantageous technical features of the above-mentioned methods can be freely combined and superimposed.

[0046] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention. The above are merely preferred embodiments of the present invention. It should be noted that those skilled in the art may make various improvements and variations without departing from the technical principles of the present invention, and such improvements and variations shall also be considered within the scope of protection of the present invention.

Claims

1. A washing machine comprising a drum and a pulsator, characterized in that: The invention also includes a magnetic gear compound motor and a clutch device (2). The magnetic gear compound motor includes a rotor assembly, a magnetic adjustment ring assembly coaxially sleeved outside the rotor assembly, and a stator assembly coaxially sleeved outside the magnetic adjustment ring assembly. The rotor assembly has a rotor shaft (111) whose first end is coaxially connected to a pulsator shaft (31). The pulsator shaft (31) is connected to the pulsator. A roller shaft (32) is sleeved in the outer gap of the pulsator shaft (31). The first end of the roller shaft (32) is connected to the roller. The clutch device (2) includes a main body. The main body (21) is connected to a first gear (221) and a second gear (222). The main body (21) has a first position away from the rotor shaft (111) and a second position close to the rotor shaft (111). The main body (21) can be driven to swing around a fulcrum to achieve switching between the first position and the second position. In the first position, the first gear (221) is driven to be connected to the magnetic adjustment ring assembly and the second gear (222) is separated from the rotor shaft (111). The roller shaft (32) is caused to rotate following the magnetic adjustment ring assembly. In the second position, the first gear (221) is separated from the magnetic adjustment ring assembly and the second gear (222) is driven and connected to the rotor shaft (111) so that the roller shaft (32) rotates following the rotor shaft (111). The main body (21) includes a main rod (211) and a first branch rod (212) and a second branch rod (213) connected to a first end of the main rod (211). The first gear (221) is fixedly connected to the first branch rod (213). 12), the second gear (222) is fixedly connected to the free end of the second branch rod (213), the clutch device (2) also includes a clutch base plate (23), the second end of the main rod (211) is hinged to the side of the clutch base plate (23) facing the magnetic gear compound motor, the clutch base plate (23) has a first through hole (231) passing through both ends thereof, the roller shaft (32) is coaxially inserted into the first through hole (231), and the hole wall of the first through hole (231) is meshed with the roller shaft (32).

2. The washing machine according to claim 1, wherein A plane perpendicular to the clutch base plate (23) and facing the side of the magnetic gear compound motor and passing through a diameter of the clutch base plate (23) is a first plane, and the main body (21) can be driven to swing inward and outward along the diameter direction of the clutch base plate (23) within the first plane.

3. The washing machine according to claim 2, characterized in that In the first position, the central axis of the first branch rod (212) is parallel to the rotor shaft (111), and in the second position, the central axis of the second branch rod (213) is parallel to the rotor shaft (111).

4. The washing machine according to claim 2, wherein: A fixing structure is also provided on the clutch bottom plate (23), and the fixing structure is used to fix the position of the main body (21) when the main body (21) is in the first position and the second position.

5. The washing machine according to claim 4, characterized in that The fixed structure comprises a first slider and a second slider that are arranged relative to each other, the first slider and the second slider are symmetrically arranged about the first plane and are both slidably connected to the clutch base plate (23), and the first slider and the second slider can be driven to move toward or away from the main body (21) at the same time.

6. The washing machine according to claim 5, characterized in that A concave-convex structure that matches each other is formed on the wall surface where the first slider contacts the main body (21); and / or a concave-convex structure that matches each other is formed on the wall surface where the second slider contacts the main body (21).

7. The washing machine according to claim 2, characterized in that The magnetic adjustment ring assembly comprises a first magnetic ring end cover (121), the first magnetic ring end cover (121) is rotatably mounted on the rotor shaft (111), a first meshing portion (1211) is provided on the wall of a central hole of the first magnetic ring end cover (121), and the rotor shaft (111) has a second meshing portion (1111), in the first position, the first meshing portion (1211) is meshed with the first gear (221), and the second meshing portion (1111) is disengaged from the second gear (222), and in the second position, the second meshing portion (1111) is meshed with the second gear (222), and the first meshing portion (1211) is disengaged from the first gear (221).

8. A method for controlling a washing machine, characterized in that: Used to control the operation of the washing machine according to any one of claims 1 to 7, comprising the following steps: Get the operating mode of the washing machine; The clutch device (2) is controlled to operate according to the acquired operating mode to achieve switching of the drum shaft (32) between a high speed state and a low speed state.

9. The control method according to claim 8, characterized in that: When the operation mode is the washing mode, the main body (21) is controlled to be in the first position; or, When the operating mode is the dehydration mode, the main body (21) is controlled to be in the second position.

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