Balancing device of washing machine and washing machine

Abstract

The invention belongs to the technical field of washing machines, and discloses a balancing device of a washing machine, which comprises a balancer component arranged between the bottom of an inner barrel and the bottom of an outer barrel of the washing machine and filled with liquid; and the driving part drives the balancer part to rotate independently. According to the washing machine, the balancer component is arranged between the bottom of the inner barrel and the bottom of the outer barrel of the washing machine, centrifugal force generated by liquid in the balancer component during high-speed rotation is used for counteracting acting force generated during rotation of the inner barrel, effective balance in the dewatering process of the washing machine is achieved, and therefore vibration and noise are remarkably reduced; and therefore, the overall performance of the product and the user satisfaction can be improved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of washing machines, in particular, relates to a balancing device of a washing machine and the washing machine. BACKGROUND

[0002] In modern family life, washing machines as indispensable household appliances, its performance and user experience is directly related to the satisfaction of consumers.

[0003] However, the traditional washing machine in the dehydration start and running process, generally face the problem of large vibration and high noise. These problems mainly come from two aspects: one is that the washing drum itself may exist structure or installation imbalance, resulting in obvious vibration when rotating at high speed; Two is the uneven distribution of load in the washing drum, aggravating the imbalance state in the dehydration process, thus causing greater vibration and noise.

[0004] Vibration and noise not only affect the service life and stability of the washing machine, but also significantly reduce the user's comfort and use experience. In the long run, it may also have adverse effects on the home environment, such as damaging the floor level, etc.

[0005] The traditional solution is mostly focused on optimizing the structural design of the washing drum, improving the damping system or adopting more precise balance detection and adjustment mechanism, but these methods often have high cost, complex structure or limited effect. Especially for washing machine products that have been put into the market, large-scale structural modification is neither economical nor realistic.

[0006] In summary, the existing part of the washing machine has the problems of large vibration amplitude, large noise, poor balance, etc. during the dehydration process, which affects the user's use experience and satisfaction.

[0007] Therefore, the present application is proposed. SUMMARY

[0008] The technical problem to be solved by the present application is to overcome the shortcomings of the prior art, to provide a balancing device of a washing machine which can realize effective balance during the dehydration process of the washing machine, thereby significantly reducing vibration and noise, and improving the overall performance of the product and user satisfaction.

[0009] To solve the above technical problems, the basic idea of the technical solution of the present application is:

[0010] A balancing device of a washing machine, comprising:

[0011] A balancer component is arranged between the inner drum bottom and the outer drum bottom of the washing machine, and its interior is filled with liquid;

[0012] A driving component drives the balancer component to rotate independently.

[0013] Further, the driving component drives the balancer component to rotate independently relative to the inner tub;

[0014] Preferably, the driving component can drive the balancer component to rotate relative to the inner tub.

[0015] Further, the balancer component has:

[0016] A connecting portion is arranged outside the inner tub shaft of the washing machine and is in transmission cooperation with the driving component;

[0017] A balancing portion is arranged on the end portion of the connecting portion away from the inner tub shaft.

[0018] Further, the connecting portion is arranged horizontally along the diameter direction of the bottom of the inner tub.

[0019] Preferably, the connecting portion has a covering angle along the circumferential direction of the bottom of the inner tub.

[0020] Preferably, the connecting portion has a disc type structure.

[0021] Further, the balancing portion is arranged at the extension end of the connecting portion and is arranged along the extension direction of the connecting portion.

[0022] Preferably, the balancing portion is provided with a cavity, and the cavity is filled with a liquid.

[0023] Further, the driving component is arranged outside the inner tub shaft and is connected with the balancer component.

[0024] Preferably, the driving component has:

[0025] A balancer shaft is sleeved on the outer periphery of the inner tub shaft and is connected with the central region of the connecting portion.

[0026] Preferably, the inner tub shaft is sleeved outside the pulsator shaft of the washing machine.

[0027] Further, the driving component has independently arranged first transmission mechanism and second transmission mechanism, the first transmission mechanism is connected with the pulsator shaft and the inner tub shaft, and the second transmission mechanism is connected with the balancer shaft.

[0028] Preferably, the first transmission mechanism has:

[0029] A first stator is arranged on the bottom of the outer tub;

[0030] A first rotor is arranged opposite to the first stator and is connected with the pulsator shaft and the inner tub shaft.

[0031] Preferably, the second transmission mechanism has:

[0032] A second stator is arranged on one side of the first stator.

[0033] A second rotor is arranged opposite to the second stator and connected with the balancer shaft.

[0034] Further, the driving component has a first transmission mechanism and a second transmission mechanism that cooperate with each other, the first transmission mechanism is connected with the pulsator shaft and the inner tub shaft, and the second transmission mechanism is connected with the balancer shaft.

[0035] Preferably, the first transmission mechanism has:

[0036] A first stator is arranged on the bottom of the outer tub.

[0037] A first rotor is arranged outside the first stator and connected with the pulsator shaft and the inner tub shaft.

[0038] Preferably, the second transmission mechanism has:

[0039] A second rotor is arranged inside the first stator and connected with the balancer shaft.

[0040] Further, the horizontal extension length of the balancer component is greater than the diameter of the pulsator of the washing machine and less than the diameter of the inner tub.

[0041] Preferably, the weight of the balancer component is greater than or equal to the weight of the inner tub and / or the pulsator.

[0042] According to another object of the present application, a washing machine is also provided, which comprises the above-mentioned balancing device of the washing machine.

[0043] After the above technical solution is adopted, the present application has the following beneficial effects compared with the prior art:

[0044] In the present application, the balancer component filled with liquid is arranged between the bottom of the inner tub and the bottom of the outer tub, and the driving component drives the balancer component to rotate at high speed. Since the balancer component is filled with high-viscosity liquid, the liquid will generate centrifugal force when rotating, thereby automatically adjusting the center of gravity of the balancer component to compensate for the eccentric force of the inner tub, which can effectively reduce the vibration and noise of the washing machine during the dehydration process and improve the operation stability and service life of the washing machine.

[0045] In this invention, the balancer component extends circumferentially along the diameter of the inner tub bottom to form a disc-shaped structure, resulting in a tighter and more stable connection with the inner tub. This improves the overall structural rigidity and vibration resistance, helps optimize the use of space inside the washing machine, and allows for more flexible and efficient arrangement of other components. The disc-shaped balancer component also helps reduce wind resistance and noise during rotation.

[0046] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0047] The accompanying drawings, as part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments and descriptions of the invention are used to explain the invention, but do not constitute an undue limitation of the invention. Obviously, the drawings described below are merely some embodiments, and those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings:

[0048] Figure 1 This is a schematic diagram of the balancing device in this invention. Figure 1 ;

[0049] Figure 2 This is a schematic diagram of the balancing device in this invention. Figure 2 ;

[0050] Figure 3 This is a schematic diagram of the balancing device in this invention. Figure 3 .

[0051] In the diagram: 1. Inner tub; 11. Impeller; 12. Impeller shaft; 13. Inner tub shaft; 14. Balance ring; 2. Outer tub; 21. Drain outlet; 22. Drain valve; 23. Air chamber; 3. Balancer component; 31. Connecting part; 32. Balancer part; 321. Cavity; 4. Drive component; 41. Balancer shaft; 42. First stator; 43. First rotor; 44. Second stator; 45. Second rotor; 46. Clutch sleeve; 47. Torque transmission bushing; 48. Oil-impregnated bearing; 49. Bearing; 5. Housing; 6. Vibration damping device.

[0052] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the invention in any way, but rather to illustrate the concept of the invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0053] To make the objectives, technical solutions, and advantages of the embodiments of the present invention 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 the present invention, but are not intended to limit the scope of the present invention.

[0054] In the description of this invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., 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 invention 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 limiting this invention.

[0055] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" 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 invention based on the specific circumstances.

[0056] Currently, traditional washing machines generally face problems of high vibration and noise during spin-drying startup and operation. These problems mainly stem from two aspects: first, the washing tub itself may have structural or installation imbalances, leading to significant vibrations during high-speed rotation; second, uneven load distribution within the washing tub exacerbates the imbalance during spin-drying, thus causing even greater vibration and noise.

[0057] Example 1

[0058] To solve the above problems, such as Figures 1 to 3 As shown, this embodiment provides a balancing device for a washing machine, including:

[0059] The balancer component 3 is disposed between the bottom of the inner tub 1 and the bottom of the outer tub 2 of the washing machine, and its interior is filled with liquid;

[0060] Drive component 4 drives the balancer component 3 to rotate independently.

[0061] In this embodiment, the balancing device of the washing machine described above can be applied to the pulsator 11 washing machine, and its structure mainly includes an inner tub 1, an outer tub 2, a balancer component 3, and a drive component 4.

[0062] In this embodiment, the inner tub 1 is a component used to load clothes and perform washing and spin-drying. The inner tub 1 is connected to the drive component 4 via an inner tub shaft 13. The outer tub 2 surrounds the inner tub 1 and is used to contain washing water and foam generated during the washing process, while also providing space for the inner tub 1 to rotate. The inner tub 1 is equipped with a pulsator 11, which is connected to the drive component 4 via a pulsator shaft 12.

[0063] In this embodiment, the driving component 4 drives the balancer component 3 to rotate independently relative to the inner barrel 1.

[0064] In this embodiment, the balancer component 3 is installed between the bottom of the inner tub 1 and the bottom of the outer tub 2. The balancer component 3 is filled with a certain amount of liquid with high viscosity to ensure that when the balancer component 3 rotates, the high-speed rotation of the liquid generates sufficient centrifugal force to counteract the axial and radial forces generated when the inner tub 1 starts up, ensuring that the inner tub 1 achieves a self-balancing state and enhancing the stability of the inner tub 1 during operation.

[0065] Furthermore, the driving component 4 can drive the balancer component 3 to rotate relative to the inner barrel 1.

[0066] In this embodiment, the two ends of the balancer component 3 are designed with sealing structures to prevent internal liquid leakage and to ensure that it can remain stable when rotating at high speed.

[0067] Furthermore, a through shaft hole is provided at the center of the balancer component 3 for mounting a shaft connected to the drive component 4, thereby enabling the balancer component 3 to rotate at high speed.

[0068] In this embodiment, the drive component 4 includes a motor and a reduction mechanism. These components can be integrated into the reduction clutch of the washing machine or can be separately located at the bottom of the outer tub 2. The motor is connected to the shaft at the center of the balancer component 3 through the reduction mechanism. When the motor starts, it can drive the balancer component 3 to rotate at high speed around its axis.

[0069] Furthermore, the drive component 4 also includes a control system, which can automatically adjust the output speed of the motor according to the actual rotation speed of the inner tub 1, so as to ensure that the rotation speed of the balancer component 3 matches the dehydration speed of the inner tub 1, thereby achieving the dynamic balancing effect of the balancer component 3.

[0070] In the above scheme, when the washing machine is performing the spin-drying operation, the inner tub 1 begins to rotate at high speed. At this time, if the clothes in the inner tub 1 are unevenly distributed or if the inner tub 1 itself has a slight imbalance, it will cause the inner tub 1 to generate an eccentric force. Before this, the drive component 4 drives the balancer component 3 to rotate at a set speed. Since the balancer component 3 is filled with a high-viscosity liquid, this liquid generates centrifugal force when rotating, thereby automatically adjusting the center of gravity position of the balancer component 3 to compensate for the eccentric force of the inner tub 1. This can effectively reduce the vibration and noise of the washing machine during the spin-drying process, and improve the operational stability and service life of the washing machine.

[0071] In this embodiment, during the spin-drying process, if the washing machine vibrates significantly, the speed of the high-speed balancer component 3 can be appropriately increased. If the washing machine vibrates less, the speed of the high-speed balancer component 3 can be appropriately decreased. After the spin-drying process is complete, the balancer component 3 gradually stops operating.

[0072] Example 2

[0073] This embodiment is a further description of Embodiment 1 described above.

[0074] like Figures 1 to 3 As shown, in this embodiment, the balancer component 3 has a connecting part 31 and a balancing part 32.

[0075] In this embodiment, the connecting part 31 is disposed on the outside of the inner tub shaft 13 of the washing machine and is connected to the driving component 4 for transmission.

[0076] Specifically, the connecting part 31 is a ring-shaped or disc-shaped structure, which is located on the outside of the inner tub shaft 13 of the washing machine and is in transmission cooperation with the driving component 4.

[0077] In this embodiment, the balancing part 32 is disposed on the end of the connecting part 31 away from the inner barrel shaft 13.

[0078] Specifically, the balancing part 32 is located at the end of the connecting part 31 on the side away from the inner barrel shaft 13, and is filled with a high-viscosity liquid to achieve dynamic balance when the inner barrel 1 rotates. The outer surface of the balancing part 32 can be streamlined to reduce air resistance and vibration during rotation.

[0079] In this embodiment, the connecting part 31 extends horizontally along the diameter direction of the bottom of the inner barrel 1.

[0080] Specifically, one end of the connecting part 31 extends from the area where it connects to the outside of the inner barrel shaft 13 toward the outer periphery of the bottom of the inner barrel 1, increasing the overall length of the connecting part 31, effectively utilizing the space at the bottom of the inner barrel 1, and enhancing the stability of the structure.

[0081] Furthermore, the connecting part 31 extends circumferentially along the bottom of the inner barrel 1 and has a covering angle, and the connecting part 31 has a disc-shaped structure.

[0082] Specifically, the connecting part 31 extends circumferentially along the bottom of the inner barrel 1, that is, it expands outward along the outline of the bottom edge of the barrel, and finally forms a disc-shaped structure. A balancing part 32 is provided on the outer periphery of the disc-shaped structure formed by the connecting part 31, and its interior is filled with a high-viscosity liquid to achieve dynamic balance.

[0083] In the above design, the connecting part 31 extends circumferentially along the bottom of the inner tub 1 to form a disc-shaped structure, making the connection between the balancer component 3 and the inner tub 1 tighter and more stable, thus improving the rigidity and vibration resistance of the overall structure. This layout also helps optimize the space utilization inside the washing machine, making the arrangement of other components more flexible and efficient. The disc-shaped balancer component 3 helps reduce wind resistance and noise during rotation.

[0084] Furthermore, the balancing part 32 is disposed at the extended end of the connecting part 31 and extends along the extending direction of the connecting part 31; the balancing part 32 is provided with a cavity 321, and the cavity 321 is filled with liquid.

[0085] Specifically, the balancing part 32 is located at the extended end of the connecting part 31, that is, at the end of the connecting part 31 away from the impeller shaft 12. The balancing part 32 continues to extend along the extending direction of the connecting part 31, forming an independent component. The balancing part 32 has a cavity 321 inside, which is used to fill liquid to achieve a dynamic balancing function. The shape of the balancing part 32 can be cylindrical, hemispherical, or other shapes that can effectively generate centrifugal force.

[0086] In the above scheme, the balancing part 32 is located at the extended end of the connecting part 31 and extends along the extending direction of the connecting part 31, making the overall structure more compact and reasonable. The balancing part 32 has a cavity 321 filled with liquid, which utilizes the centrifugal force effect of the liquid to achieve dynamic balance, which is simple, effective and low-cost. The design of the balancer component 3 takes into account the overall structure and spatial layout requirements of the washing machine, which helps to optimize the internal space utilization and performance of the washing machine.

[0087] Example 3

[0088] This embodiment is a further description of the above embodiments one and two.

[0089] like Figure 1 As shown, in this embodiment, the drive component 4 is located on the outside of the inner tub shaft 13 of the washing machine and is connected to the balancer component 3.

[0090] Preferably, the drive component 4 has a balancer shaft 41, which is sleeved on the outer periphery of the inner barrel shaft 13 and rotatably connected to the central region of the connecting part 31; the inner barrel shaft 13 is sleeved on the outer side of the impeller shaft 12.

[0091] Specifically, the drive component 4 includes a motor and a reduction gear mechanism, which together constitute the power source of the washing machine. The motor drives the inner tub shaft 13 and the impeller shaft 12 to rotate through the reduction gear mechanism.

[0092] Furthermore, the weighing scale shaft 41 is located outside the inner tub shaft 13 and connected to the balancer component 3, driving the balancer component 3 to rotate and assisting in achieving dynamic balance of the washing machine. The inner tub shaft 13 is located outside the impeller shaft 12. This nested design helps optimize the internal space layout of the washing machine and reduces the number and complexity of transmission components.

[0093] In the above scheme, the balancer shaft 41 is sleeved on the outer periphery of the inner tub shaft 13, enabling the balancer component 3 to work independently and improving the stability and reliability of the washing machine during the spin-drying process. The nested structure of the inner tub shaft 13 sleeved on the outside of the impeller shaft 12 optimizes the internal space layout of the washing machine, reduces the number and complexity of transmission components, and lowers manufacturing costs and maintenance difficulty.

[0094] In this embodiment, the drive component 4 has an independently configured first transmission mechanism and a second transmission mechanism. The first transmission mechanism is connected to the impeller shaft and the inner barrel shaft, and the second transmission mechanism is connected to the balancer shaft.

[0095] In one embodiment, the first transmission mechanism has a first stator 42 disposed on the bottom of the outer barrel 2 and a first rotor 43 that is drively connected to the impeller shaft 12 and the inner barrel shaft 13. The second transmission mechanism has a second stator 44 disposed on one side of the first stator 42 and a second rotor 45 that is drively connected to the balancer shaft 41.

[0096] Specifically, the first stator 42, the first rotor 43, the second stator 44, and the second rotor 45 can be centrally installed in the reduction mechanism at the bottom of the outer barrel 2. The first stator 42 and the first rotor 43 are located below the planetary gear system of the reduction mechanism, and the second stator 44 and the second rotor 45 are located below the first stator 42 and the first rotor 43.

[0097] Specifically, the first stator 42, as part of the electromagnetic field, interacts with the first rotor 43 to generate rotational force. The first rotor 43 is arranged opposite to the first stator 42 and is connected to the impeller shaft 12 and the inner barrel shaft 13 via a planetary gear system to transmit power.

[0098] The second stator 44 is disposed on one side of the first stator 42 and, as part of the electromagnetic field, interacts with the second rotor 45 to generate rotational force. The second rotor 45 is disposed opposite to the second stator 44 and can be drivenly connected to the balancer shaft 41.

[0099] In this embodiment, an oil-impregnated bearing 48 is provided between the impeller shaft 12 and the inner barrel shaft 13, and a bearing 49 is provided between the inner barrel shaft 13 and the balancer shaft 41, in order to improve the smoothness of the fit between the various shafts.

[0100] When the washing machine is operating, the first stator 42 is energized to generate an electromagnetic field, which interacts with the first rotor 43 to produce a rotational force, thereby driving the impeller shaft 12 and the inner tub shaft 13 to rotate. Simultaneously, the second stator 44 is also energized to generate an electromagnetic field, which interacts with the second rotor 45 to produce a rotational force, driving the balancer shaft 41 to rotate. Since the impeller shaft 12, the inner tub shaft 13, and the balancer shaft 41 are connected to the first rotor 43 and the second rotor 45 through different transmission mechanisms, they can rotate independently or synchronously to meet the needs of the washing machine at different operating stages.

[0101] Example 4

[0102] The difference between this embodiment and Embodiment 3 above is that:

[0103] like Figure 2 As shown, in this embodiment, the first stator 42, the first rotor 43, the second stator 44, and the second rotor 45 can be centrally installed in the reduction mechanism at the bottom of the outer barrel 2. The first stator 42 and the first rotor 43 are located above the planetary gear system of the reduction mechanism and are connected to the balancer shaft 41 for transmission.

[0104] Specifically, the second stator 44 and the second rotor 45 are located below the planetary gear system, that is, below the first stator 42 and the first rotor 43, and are connected to the impeller shaft 12 and the inner barrel shaft 13 for transmission.

[0105] Example 5

[0106] The difference between this embodiment and Embodiment 3 above is that:

[0107] like Figure 3 As shown, in this embodiment, the drive component 4 has a first transmission mechanism and a second transmission mechanism that cooperate with each other. The first transmission mechanism is connected to the impeller shaft and the inner barrel shaft, and the second transmission mechanism is connected to the balancer shaft.

[0108] Furthermore, the first transmission mechanism has a first stator 42 disposed on the bottom of the outer barrel 2 and a first rotor 43 that is drively connected to the impeller shaft 12 and the inner barrel shaft 13. The second transmission mechanism has a second rotor 45 disposed on one side of the first stator 42 and drively connected to the balancer shaft 41.

[0109] Specifically, the first stator 42 is installed in the reduction mechanism at the bottom of the outer barrel 2, serving as the main part of the electromagnetic field and providing power for the rotation of the first rotor 43. The first rotor 43 is located outside the first stator 42 and is connected to the impeller shaft 12 and the inner barrel shaft 13 through the clutch sleeve 46, the torque transmission shaft sleeve 47, the planetary gear system, and the transmission connection.

[0110] The second rotor 45 is located inside the first stator 42 and is connected to the balancer shaft 41 for transmission. This ensures that during the operation of the washing machine, the balancer shaft 41 rotates with the second rotor 45, thereby driving the balancer component 3 to perform dynamic balance adjustment. Furthermore, the first rotor 43 and the second rotor 45 share the layout of the first stator 42, which helps to optimize the internal space utilization of the washing machine and reduce interference between components, making the overall structure more compact and reasonable.

[0111] In this embodiment, the horizontal extension length of the balancer component 3 is greater than the diameter of the impeller 11 of the washing machine, but less than the diameter of the inner tub 1.

[0112] Specifically, the balancer component 3 is configured as a disc-shaped structure, with an extension length greater than the diameter of the impeller 11 of the washing machine but smaller than the diameter of the inner tub 1. This allows the balancer component 3 to effectively cover and influence the vibration area generated by the rotation of the impeller 11 when the washing machine is working, while avoiding interference with the edge of the inner tub 1.

[0113] Preferably, the weight of the balancer component 3 is greater than or equal to the weight of the inner tub 1 and / or the impeller 11.

[0114] Specifically, during the spin-drying process, significant vibrations and eccentric forces may occur due to uneven distribution of clothes. By increasing the weight of the balancer component 3, its dynamic balance adjustment effect can be improved, reducing the overall vibration and noise of the washing machine.

[0115] Example 6

[0116] This embodiment is a further description of embodiments one through five described above.

[0117] like Figures 1 to 3 As shown, in this embodiment, a washing machine is also provided, including the balancing device of the washing machine described above.

[0118] In this embodiment, the washing machine has a vibration damping device 6, one end of which is fixed to the washing machine housing 5, and the other end is fixed to the outer tub 2.

[0119] In this embodiment, the bottom of the outer tub 2 of the washing machine is provided with a drain outlet 21, and a drain valve 22 is provided inside the drain outlet 21 to control the drainage process.

[0120] In this embodiment, an air chamber 23 is provided on one side of the bottom of the outer tub 2 of the washing machine. The air chamber 23 is used to discharge the gas between the inner tub 1 and the outer tub 2.

[0121] In this embodiment, a balance ring 14 is provided at the top of the opening of the inner barrel 1, and the balance ring 14 is arranged around the top of the barrel wall of the inner barrel 1.

[0122] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. 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 invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A balancing device for a washing machine, characterized in that, The washing machine comprises: a balancer component (3) arranged between the inner tub (1) and the outer tub (2) of the washing machine, and filled with liquid inside; a driving component (4) for driving the balancer component (3) to rotate independently.

2. The balancing device of a washing machine according to claim 1, wherein The driving component (4) drives the balancer component (3) to rotate independently relative to the inner tub (1). Preferably, the driving component (4) can drive the balancer component (3) to rotate relative to the inner tub (1).

3. The balancing device of a washing machine according to claim 1, wherein The balancer component (3) has: a connecting portion (31) arranged on the outer side of the inner tub shaft (13) and in transmission cooperation with the driving component (4); a balancing portion (32) arranged on the end of the connecting portion (31) away from the inner tub shaft (13).

4. The balancing device of a washing machine according to claim 3, wherein The connecting portion (31) is arranged horizontally along the diameter direction of the bottom of the inner tub (1). Preferably, the connecting portion (31) has a covering angle along the circumferential direction of the bottom of the inner tub (1). Preferably, the connecting portion (31) has a disc type structure.

5. The balancing device of a washing machine according to claim 4, wherein The balancing portion (32) is arranged at the extension end of the connecting portion (31) and extends along the extension direction of the connecting portion (31). Preferably, the balancing portion (32) is provided with a cavity (321) filled with liquid.

6. A balancing device for a washing machine as claimed in any one of claims 3 to 5, characterised in that, The driving component (4) is arranged on the outer side of the inner tub shaft (13) and connected with the balancer component (3). Preferably, the driving component (4) has: a balancer shaft (41) sleeved on the outer periphery of the inner tub shaft (13) and connected with the central region of the connecting portion (31). Preferably, the inner tub shaft (13) is sleeved on the outer side of the pulsator shaft (12) of the washing machine.

7. A balancing device for a washing machine as claimed in claim 6, characterized in that The driving component (4) has independently arranged first and second transmission mechanisms, the first transmission mechanism is connected with the pulsator shaft (12) and the inner tub shaft (13), and the second transmission mechanism is connected with the balancer shaft (41). Preferably, the first transmission mechanism has: a first stator (42) arranged on the bottom of the outer tub (2); a first rotor (43) arranged opposite to the first stator (42) and connected with the pulsator shaft (12) and the inner tub shaft (13). Preferably, the second transmission mechanism has: a second stator (44) arranged on one side of the first stator (42); a second rotor (45) arranged opposite to the second stator (44) and connected with the balancer shaft (41).

8. The balancing device of a washing machine according to claim 6, wherein The driving component (4) has independently arranged first and second transmission mechanisms, the first transmission mechanism is connected with the pulsator shaft (12) and the inner tub shaft (13), and the second transmission mechanism is connected with the balancer shaft (41). Preferably, the first transmission mechanism has: a first stator (42) arranged on the bottom of the outer tub (2); a first rotor (43) arranged on the outer side of the first stator (42) and connected with the pulsator shaft (12) and the inner tub shaft (13). Preferably, the second transmission mechanism has: A second rotor (45) is arranged inside the first stator (42) and is connected to the balancer shaft (41).

9. The balancing device of a washing machine according to claim 1, wherein The horizontal extension length of the balancer component (3) is greater than the diameter of the pulsator (11) and less than the diameter of the inner tub (1). Preferably, the weight of the balancer component (3) is greater than or equal to the weight of the inner tub (1) and / or the weight of the pulsator (11).

10. A laundry machine characterized by A balancing device for a washing machine according to any one of claims 1-9.

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