Washing machine and control method thereof

Abstract

The present invention provides a washing machine and a control method thereof, belonging to the technical field of household appliances. The washing machine includes a magnetic gear composite motor and a clutch device. 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 impeller shaft. The drum shaft is mounted in a gap outside the impeller shaft. The clutch device includes a linear moving member and a swinging member. The linear moving member is capable of radial sliding. In a first position of the linear moving member, the linear moving member is drivenly connected to the magnetic adjustment ring assembly and the swinging member is separated from the rotor shaft so that the drum shaft rotates following the magnetic adjustment ring assembly. In a second position, the linear moving member is separated from the magnetic adjustment ring assembly and the swinging member is drivenly connected to the rotor shaft so that the drum shaft rotates following the rotor shaft. In the present invention, the drum shaft is switchably directly drivenly connected to the rotor shaft or the magnetic adjustment ring assembly, thereby achieving simultaneous rotation of the drum and the impeller, reducing the axial size of the washing machine and occupying less space.

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] Washing machines typically use a wrap spring and a toothed clutch to achieve clutching. While the toothed clutch structure offers advantages such as high reliability and compactness, it requires an axially sliding spline, which prevents efficient use of space and increases the axial dimensions of the washing machine (as disclosed in patent application number CN2014800026353). In related technologies, some washing machines do not use planetary gears for speed reduction, but instead employ dual motors to achieve dual-mode or dual-power operation for washing and spinning. 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 problem 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, which has a complex structure, large mechanical transmission loss, and low transmission efficiency. At the same time, the clutch state switching of the clutch device requires axial movement, which increases the axial size of the washing machine.

[0005] 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. The magnetic gear compound motor comprises a rotor assembly, a magnetic adjustment ring assembly coaxially mounted outside the rotor assembly, and a stator assembly coaxially mounted outside the magnetic adjustment ring assembly. The rotor assembly comprises a rotor shaft having a first end coaxially connected to the pulsator shaft, the pulsator shaft being connected to the pulsator, a drum shaft being mounted in a gap outside the pulsator shaft, the first end of the drum shaft being connected to the drum, and the clutch device comprising a linear moving member and a swinging member. The linear moving member can be driven to slide radially along the rotor shaft. The linear moving member has a first position close to the rotor shaft and a second position away from the rotor shaft. In the first position, the linear moving member is drivingly connected to the magnetic adjustment ring assembly and the swinging member is separated from the rotor shaft so that the drum shaft rotates following the magnetic adjustment ring assembly. In the second position, the linear moving member is separated from the magnetic adjustment ring assembly and the swinging member is drivingly connected to the rotor shaft so that the drum shaft rotates following the rotor shaft.

[0006] In some embodiments, the clutch device also includes a clutch base plate, the linear moving member is slidably connected to the clutch base plate, the clutch base plate has a first through hole passing through both ends thereof, the roller shaft is coaxially inserted into the first through hole, and the hole wall of the first through hole is meshed with the roller shaft.

[0007] In some embodiments, the linear moving member includes a moving body, the moving body having a linear displacement driving part and a first engaging part, the first engaging part and the linear displacement driving part are respectively located on opposite sides of the moving body, the linear displacement driving part is configured with a slider on the side facing the clutch base plate, and the clutch base plate has a first linear slide groove matching the slider.

[0008] In some embodiments, the magnetic tuning ring assembly includes a first magnetic ring end cover, which is rotatably mounted on the rotor shaft. A third engaging portion is provided on the wall of the center hole of the first magnetic ring end cover. In the first position, the first engaging portion is engaged with the third engaging portion, and in the second position, the first engaging portion is disengaged from the third engaging portion.

[0009] In some embodiments, the swinging member includes a swinging body, the swinging body having a hinge portion and a second meshing portion, the hinge portion and the second meshing portion are respectively located on opposite sides of the swinging body, the swinging body is hinged to the clutch base plate through the hinge portion, and the linear movement of the moving body can drive the swinging member to swing so that the second meshing portion engages or disengages with the fourth meshing portion of the rotor shaft.

[0010] In some embodiments, a second linear slide groove is constructed on the movable body, and the second engaging portion has a cylinder on the side facing the movable body. The cylinder is inserted into the second linear slide groove, and when the linear movable member switches between the first position and the second position, the cylinder slides in the second linear slide groove.

[0011] In some embodiments, the moving body has a hollow ring portion, the rotor shaft passes through a hollow area of ​​the hollow ring portion, and the second linear slide groove is configured on the hollow ring portion.

[0012] In some embodiments, there are two swinging members and two second linear slides, the two second linear slides are mirror-imaged about the central axis of the rotor shaft, and the two swinging members and the two second linear slides are respectively arranged in a one-to-one correspondence.

[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 the washing mode, the linear moving member is controlled to be in the first position; or,

[0017] When the operation mode is the dehydration mode, the linear moving member is controlled to be in the second position.

[0018] The present invention provides a washing machine and its control method. Compared to prior art dual-drive washing machines that use a planetary gear set in conjunction with a clutch device, 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 prior art dual-motor drive structures, the present invention can reduce product manufacturing costs. More importantly, the clutch control of the clutch device in the present invention is achieved by switching the position of a radially sliding linear moving member. Compared with axially switching clutch structures, it can reduce the axial size of the washing machine and occupy less space. 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. 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 (decomposed structure);

[0020] Figure 2 for Figure 1 Schematic diagram of the shaft cross section of the magnetic gear compound motor (excluding components such as the motor housing);

[0021] Figure 3 for Figure 1 Schematic diagram of the three-dimensional structure of the rotor shaft;

[0022] Figure 4 for Figure 1 A schematic diagram of the three-dimensional structure of the first magnetic ring end cover;

[0023] Figure 5 for Figure 1 Schematic diagram of the three-dimensional structure of the drum shaft;

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

[0025] Figure 7 for Figure 1 A schematic diagram of the three-dimensional structure of the clutch base plate;

[0026] Figure 8 for Figure 1 Schematic diagram of the three-dimensional structure of the linear moving part;

[0027] Figure 9 for Figure 1 A schematic diagram of the three-dimensional structure of the swing member;

[0028] Figure 10 Schematic diagram of the clutch device when the washing machine of the present invention is in the washing mode;

[0029] Figure 11 It is a schematic diagram of the clutch device when the washing machine of the present invention is in the dehydration mode.

[0030] The reference numerals indicate:

[0031] 111, rotor shaft; 1111, fourth meshing portion; 1112, seventh meshing portion; 112, rotor core; 113, rotor magnetic steel slot; 114, rotor magnetic steel; 121, first magnetic ring end cap; 1211, third meshing portion; 122, second magnetic ring end cap; 123, modulation ring; 1231, modulation pole piece; 1232, modulation groove; 1233, modulation magnetic bridge; 131, stator core; 132, stator magnetic steel; 133, stator winding; 21, linear moving element; 211, linear displacement Driving part; 212, first meshing part; 213, slider; 214, second linear slide; 215, hollow ring; 22, swinging member; 221, hinged part; 222, second meshing part; 223, cylinder; 23, clutch base plate; 231, first through hole; 2311, fifth meshing part; 232, first linear slide; 31, impeller shaft; 311, eighth meshing part; 32, drum shaft; 321, sixth meshing part; 41, motor housing; 42, motor rear end cover; 43, motor front end cover. DETAILED DESCRIPTION

[0032] See also Figures 1 to 11As 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 (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 rotor assembly has a rotor shaft 111 whose first end 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 equipped with a drum shaft 32. The first end of the drum shaft 32 is connected to the drum Then, the clutch device includes a linear moving member 21 and a swinging member 22. The linear moving member 21 can be driven to slide radially along the rotor shaft 111. The linear moving member 21 has a first position close to the rotor shaft 111 and a second position away from the rotor shaft 111. In the first position, the linear moving member 21 is driven and connected to the magnetic tuning ring assembly and the swinging member 22 is separated from the rotor shaft 111 so that the drum shaft 32 rotates following the magnetic tuning ring assembly. In the second position, the linear moving member 21 is separated from the magnetic tuning ring assembly and the swinging member 22 is driven and connected to the rotor shaft 111 so that the drum shaft 32 rotates following the rotor shaft 111. In this way, the drum shaft 32 has a high-speed state driven by the rotor shaft 111 (specifically corresponding to the dehydration mode of the washing machine) and a low-speed state driven by the magnetic tuning ring assembly (specifically corresponding to the washing mode of the washing machine). The drum shaft 32 is switched between the high-speed state and the low-speed state by switching the position of the linear moving member 21.

[0033] In this technical solution, compared to the prior art dual-drive washing machine structure that uses a planetary gear set and a clutch device, the present invention uses a magnetic gear composite motor and utilizes the differential speed characteristics of the rotor assembly and the magnetic adjustment ring assembly of the magnetic gear composite 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 simple structure facilitates assembly, effectively reduces mechanical losses during power transmission, and improves 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. More importantly, the clutch control of the clutch device in the present invention is achieved by switching the position of the radially sliding linear movable member 21. Compared with the axially switching clutch structure, it can reduce the axial size of the washing machine and occupy less space. At the same time, it should be noted that the magnetic gear composite motor has the characteristics of low speed and high torque, which can ensure that the drum and the impeller have sufficient rotational power.

[0034] 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, a plurality of stator magnets 132 are provided on the side of the stator core 131 facing the magnetic adjustment ring assembly, a 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 (or embedded in, embedded in the rotor magnet slot 113), the magnetic adjustment ring assembly is located in the air gap between the stator and rotor, and is in contact with the stator assembly and the rotor assembly. The components do not contact (i.e., a gap is formed). 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 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-fitted with the rotor shaft 111, serving as the output shaft H, with a rotational speed of Vh. The modulation ring 123 is screw-fastened to the first magnetic ring end cap 121, serving as the output shaft L, with a rotational speed of Vl. The rotor magnet 114 has a magnetic pole pair number of Pi. The modulation ring 123 is coaxially mounted on the outside of the rotor core 112. The stator magnet 132 has a magnetic pole pair number of Po, which is the number of alternating stator poles. The stator winding 133 generates a rotating magnetic field with the same number of magnetic pole pairs as the rotor magnet 114, and Pi, Pm, and Po satisfy Pi + Po = Pm. The rotor magnet 114 is mounted internally, with the magnets under the same pole arranged in a V-shape. This V-shape effectively increases the magnetic flux area, increases magnetic flux density, and improves output torque. The magnets under the same V-shaped pole have the same polarity and are magnetized parallel to each other along the thickness direction. The magnets under adjacent V-shaped poles have opposite polarity. The stator magnets 132 and the stator alternating poles are evenly spaced along the circumferential direction. All the stator magnets 132 have the same magnetization direction, which is radial magnetization, and adjacent magnets have opposite polarities.

[0035] See also Figure 7As shown, the clutch device also includes a clutch base plate 23, and the linear moving member 21 is slidably connected to the clutch base plate 23. The clutch base plate 23 has a first through hole 231 running 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. 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, and the meshing connection method can facilitate the assembly and production of the two.

[0036] See also Figure 8 As shown, the linear moving member 21 includes a moving body (not marked in the figure), the moving body has a linear displacement driving part 211 and a first engaging part 212, the first engaging part 212 and the linear displacement driving part 211 are respectively located on opposite sides of the moving body, and the linear displacement driving part 211 is constructed with a slider 213 on the side facing the clutch base plate 23, and the clutch base plate 23 has a first linear slide groove 232 matching the slider 213. It can be understood that the linear displacement driving part 211 is driven and connected to a mechanism (not shown in the figure) that can generate linear telescopic extension, such as an electric push rod, which is fixedly connected to the clutch base plate 23 and can provide a reciprocating driving force along the radial direction of the rotor shaft 111 to ensure the position switching of the linear moving member 21.

[0037] As mentioned above, the magnetic ring assembly includes a first magnetic ring end cap 121, which is rotatably mounted on the rotor shaft 111 and fixedly connected to the modulation ring 123 as a whole. Figure 4 As shown, the center hole wall of the first magnetic ring end cap 121 has a third meshing portion 1211. In the first position, the first meshing portion 212 is meshed with the third meshing portion 1211. In the second position, the first meshing portion 212 is disengaged from the third meshing portion 1211. Smooth switching between the third meshing portion 1211 and the first meshing portion 212 is achieved by the engagement or disengagement between the third meshing portion 1211 and the first meshing portion 212. The magnetic tuning ring assembly also includes a second magnetic ring end cap 122 connected to the second end of the modulation ring 123. The second magnetic ring end cap 122 is rotatably mounted on the rotor shaft 111 (via corresponding bearings) and, together with the first magnetic ring end cap 121, forms a clamp for the modulation ring 123. The first magnetic ring end cap 121 and the second magnetic ring end cap 122 can reliably define the axial position of the modulation ring 123, making the structure of the magnetic tuning ring assembly more stable and reliable.

[0038] See also Figure 9As shown, the swinging member 22 includes a swinging body (not marked in the figure), the swinging body has a hinge portion 221 and a second meshing portion 222, the hinge portion 221 and the second meshing portion 222 are respectively located on opposite sides of the swinging body, and the swinging body is hinged to the clutch base plate 23 (which has a corresponding pin hole) through the hinge portion 221 (for example, through a rotating pin shaft), and the linear movement of the moving body can drive the swinging member 22 to swing so that the second meshing portion 222 is engaged or disengaged with the fourth meshing portion 1111 of the rotor shaft 111. In this technical solution, the position of the swinging member 22 can be synchronously driven by the position movement of the linear moving member 21, thereby realizing the selection of whether the swinging member 22 is engaged with the rotor shaft 111 or not. In this way, the linkage between the two is realized, which simplifies the motion control of the components.

[0039] In a specific embodiment, see Figure 9 As shown, a second linear slide 214 is constructed on the moving body, and a cylinder 223 is provided on the side of the second engaging portion 222 facing the moving body. The cylinder 223 is inserted into the second linear slide 214, and during the process of the linear moving member 21 switching between the first position and the second position, the cylinder 223 slides in the second linear slide 214. In a more preferred embodiment, a roller is mounted on the cylinder 223 to reduce the friction force of the cylinder 223 along the second linear slide 214, making the position switching smoother and improving the service life of the components. Figure 9 As shown, the moving body has a hollow ring portion 215, and the rotor shaft 111 passes through the hollow area of ​​the hollow ring portion 215. The space in the hollow area should meet the linear movement range requirements of the linear moving member 21. The second linear slide 214 is constructed on the hollow ring portion 215. This technical solution makes the overall structure of the clutch device more compact and reasonable. In a preferred embodiment, see Figure 9 As shown, there are two swinging members 22 and two second linear slots 214. The two second linear slots 214 are mirror-imaged about the central axis of the rotor shaft 111. The two swinging members 22 are arranged in a one-to-one correspondence with the two second linear slots 214. The two swinging members 22 can symmetrically engage with opposite sides of the rotor shaft 111, making the engagement more reliable and stable. The specific location of the two second linear slots 214 can be selected based on the linear displacement of the linear moving member 21, the swing range of the swinging member 22, and the swing radius.

[0040] 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 .

[0041] The first meshing portion 212 , the second meshing portion 222 , the third meshing portion 1211 , the fourth meshing portion 1111 , the fifth meshing portion 2311 , the sixth meshing portion 321 , the seventh meshing portion 1112 and the eighth meshing portion 311 all adopt a spline tooth structure, which has a greater torque transmission capability.

[0042] 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:

[0043] Get the operating mode of the washing machine, which includes washing mode and dehydration mode;

[0044] The clutch device 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.

[0045] Specifically, when the operating mode is the washing mode, the linear moving member 21 is controlled to be 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 pulsator shaft 31 rotates at a high speed following the rotor shaft 111, and the pulsator shaft 31 and the drum shaft 32 have the same rotation direction, that is, the drum and the pulsator 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 linear moving member 21 is controlled to be 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 pulsator shaft 31 both rotate at a high speed following the rotor shaft 111, and the pulsator shaft 31 and the drum shaft 32 have the same rotation direction, thereby ensuring the dehydration effect.

[0046] 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.

[0047] 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 composite motor and a clutch device. The magnetic gear composite 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 includes a linear moving member ( 21) and a swinging member (22), the linear moving member (21) can be driven to slide along the radial direction of the rotor shaft (111), the linear moving member (21) has a first position close to the rotor shaft (111) and a second position away from the rotor shaft (111), in the first position, the linear moving member (21) is driven and connected to the magnetic adjustment ring assembly and the swinging member (22) is separated from the rotor shaft (111) so that the roller shaft (32) rotates following the magnetic adjustment ring assembly, in the second position, the linear moving member (21) is driven and connected to the magnetic adjustment ring assembly and the swinging member (22) is separated from the rotor shaft (111) so that the roller shaft (32) rotates following the magnetic adjustment ring assembly, The linear moving member (21) is separated from the magnetic adjustment ring assembly and the swinging member (22) is connected to the rotor shaft (111) in a driving manner so that the roller shaft (32) rotates following the rotor shaft (111); the clutch device further comprises a clutch base plate (23), the linear moving member (21) is slidably connected to the clutch base plate (23), 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 first through hole (231) is The hole wall is meshedly connected with the roller shaft (32); the linear moving member (21) includes a moving body, the moving body having a linear displacement driving portion (211) and a first meshing portion (212), the first meshing portion (212) and the linear displacement driving portion (211) being respectively located on opposite sides of the moving body, the linear displacement driving portion (211) having a slider (213) on one side facing the clutch base plate (23), and the clutch base plate (23) having a first linear sliding groove (232) matching the slider (213).

2. The washing machine according to claim 1, wherein The magnetic adjustment ring assembly includes a first magnetic ring end cover (121), the first magnetic ring end cover (121) is rotatably mounted on the rotor shaft (111), and a third meshing portion (1211) is provided on the wall of the center hole of the first magnetic ring end cover (121). In the first position, the first meshing portion (212) is meshed with the third meshing portion (1211), and in the second position, the first meshing portion (212) is disengaged from the third meshing portion (1211).

3. The washing machine according to claim 1, wherein The swinging member (22) comprises a swinging body, the swinging body having a hinge portion (221) and a second meshing portion (222), the hinge portion (221) and the second meshing portion (222) being located on opposite sides of the swinging body, respectively. The swinging body is hinged to the clutch base plate (23) via the hinge portion (221), and the linear movement of the moving body can drive the swinging member (22) to swing so that the second meshing portion (222) engages with or disengages from the fourth meshing portion (1111) of the rotor shaft (111).

4. The washing machine according to claim 3, characterized in that A second linear slide groove (214) is constructed on the movable body, and a cylinder (223) is provided on the side of the second engaging portion (222) facing the movable body. The cylinder (223) is inserted into the second linear slide groove (214), and when the linear movable member (21) switches between the first position and the second position, the cylinder (223) slides in the second linear slide groove (214).

5. The washing machine according to claim 4, characterized in that The moving body has a hollow ring portion (215), the rotor shaft (111) passes through a hollow area of ​​the hollow ring portion (215), and the second linear slide groove (214) is constructed on the hollow ring portion (215).

6. The washing machine according to claim 5, characterized in that There are two swinging members (22), and there are two second linear slides (214). The two second linear slides (214) are mirror-imaged with respect to the central axis of the rotor shaft (111). The two swinging members (22) and the two second linear slides (214) are respectively arranged in a one-to-one correspondence.

7. 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 6, comprising the following steps: Get the operating mode of the washing machine; The clutch device 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.

8. The control method according to claim 7, characterized in that: When the operating mode is the washing mode, the linear moving member (21) is controlled to be in the first position; or, When the operating mode is the dehydration mode, the linear moving member (21) is controlled to be in the second position.

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