CN114934369A

CN114934369A - Washing machine

Info

Publication number: CN114934369A
Application number: CN202210766111.8A
Authority: CN
Inventors: 今井俊次; 姜振焱; 张江涛; 张旭; 刘振华
Original assignee: Hisense Refrigerator Co Ltd
Current assignee: Hisense Refrigerator Co Ltd
Priority date: 2022-06-30
Filing date: 2022-06-30
Publication date: 2022-08-23

Abstract

The application discloses washing machine includes: a drum formed with a laundry receiving chamber for receiving laundry to be washed; a first pulsator horizontally disposed in the laundry accommodating chamber, the first pulsator being rotatable along a first rotation center thereof; a driving member connected to the first pulsator to drive the first pulsator to rotate around a first rotation center; the second impeller is rotatably connected with the first impeller and is positioned on the top surface of the first impeller, the second impeller can rotate around a second rotation center of the second impeller under the driving of the washed clothes, and the second rotation center is eccentrically arranged relative to the first rotation center. Therefore, when the driving member drives the first pulsator to rotate, the second pulsator rotates around the first rotation center and the second rotation center at the same time, thereby preventing the laundry from being excessively turned and tangled, preventing the laundry from being damaged due to the fact that the same laundry position is always rubbed, and generating a uniform cleaning effect.

Description

Washing machine

Technical Field

The application relates to the technical field of household appliances, in particular to a washing machine.

Background

The impeller washing machine washes by turning over and rubbing the clothes in the barrel, and can adjust the washing effect by controlling the rotating speed of the impeller and the quantity and height of impeller blades.

In order to turn over the clothes and achieve uniform washing of the clothes, the rotation speed of the impeller needs to be high. However, at higher rotational speeds, although the laundry tumbling ability is improved and the washing ability is improved, tangling and laundry damage may increase.

Disclosure of Invention

The application provides a washing machine can prevent that clothing from excessively overturning and tangling, prevents to rub same clothing position all the time and leads to clothing damage to even clean effect.

The washing machine includes: a drum formed with a laundry receiving chamber for receiving laundry to be washed; the first impeller is horizontally arranged in the clothes accommodating cavity and can rotate along a first rotation center of the first impeller; a driving member connected to the first pulsator to drive the first pulsator to rotate around a first rotation center; the second impeller is rotatably connected with the first impeller and is positioned on the top surface of the first impeller, the second impeller can rotate around a second rotation center of the second impeller under the drive of the washed clothes, and the second rotation center is eccentrically arranged relative to the first rotation center.

In some embodiments, the first impeller is rotatable about a first axis of rotation that passes through the first center of rotation, and the second impeller is rotatable about a second axis of rotation that passes through the second center of rotation, the first axis of rotation and the second axis of rotation having an included angle therebetween.

In some specific embodiments, the top surface of the first impeller is protruded to be arranged in an arc surface, and the second impeller is arranged on the arc surface of the first impeller in a fitting manner.

In some embodiments, the number of the second pulsator is plural, and the plural second pulsator are provided on the top surface of the first pulsator while being spaced apart from each other.

In some specific embodiments, the second rotation centers of the plurality of second pulsator are spaced apart from the first rotation centers in a horizontal direction by the same distance, respectively, and the second rotation centers of adjacent two second pulsator are spaced apart from each other by the same distance.

In some specific embodiments, the diameter of the second pulsator is equal to or greater than one fifth of the diameter of the first pulsator, and the number of the second pulsator is equal to or less than four.

In some embodiments, the drive member includes a drive shaft coupled to a center of the first pulsator, the drive shaft configured to drive the first pulsator to rotate about a first rotation center; the washing machine includes a washer, through which the drive shaft passes, and one side of which abuts against the first pulsator.

In some embodiments, the washing machine includes a shaft formed by downwardly protruding a lower structure of the second pulsator, the shaft being rotatably provided on the first pulsator; or the connecting shaft is formed by the upward bulge of the upper structure of the first impeller, and the second impeller is rotatably arranged on the connecting shaft.

In some specific embodiments, a plurality of first blades are convexly arranged on the top surface of the first impeller, a plurality of second blades are convexly arranged on the top surface of the second impeller, and the first blades and the second blades are used for cleaning the cleaned clothes; the height of the bulge of the first fan blade is more than or equal to 40mm, the width of the first fan blade is more than or equal to 10mm, the height of the bulge of the second fan blade is less than or equal to 25mm, and the width of the second fan blade is more than or equal to 30 mm.

In some embodiments, the first center of rotation is spaced from the second center of rotation by more than 20mm in the horizontal direction.

The application has at least the following beneficial effects: the application provides a washing machine has first impeller and second impeller, and the first rotation center of first impeller and the second rotation center of second impeller have certain interval on the horizontal direction. Under the arrangement mode, the driving piece drives the first impeller to rotate, so that the washed clothes turn over and rotate, and the washed clothes drive the second impeller to rotate along the second rotation center. Therefore, the second pulsator rotates around the first rotation center and the second rotation center at the same time, can prevent the laundry from being excessively turned and tangled, prevent the laundry from being damaged by rubbing the same laundry position all the time, and provide a uniform cleaning effect.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a coaxial pulsator provided in the present application.

Fig. 2 is a schematic disassembled structure of the coaxial pulsator in fig. 1.

Fig. 3 is a schematic view illustrating a motion state of the coaxial pulsator of fig. 1.

Fig. 4 is a schematic structural diagram of a washing machine provided by the present application.

Fig. 5 is a schematic structural disassembly diagram of a structure formed by the first pulsator, the second pulsator and the driving member in fig. 4.

Fig. 6 is a schematic view illustrating the motion states of the first pulsator and the second pulsator of the washing machine of fig. 4.

Fig. 7 is a schematic structural view of a first pulsator of the washing machine of fig. 4.

Fig. 8 is a schematic structural view of another arrangement mode of the first pulsator and the second pulsator of the washing machine provided by the present application.

Fig. 9 is an enlarged schematic view of the structure of the driver and the washer in fig. 5.

Fig. 10 is an enlarged schematic view of a structure of the second pulsator in fig. 5.

Fig. 11 is a schematic structural view of another embodiment of the second pulsator.

Description of reference numerals: 10. a coaxial impeller; 11. an upper impeller; 12. a lower impeller; 13. a drive structure; 14. a barrel; q, a clothes accommodating cavity; s1, a first direction; s2, a second direction; 20. a washing machine; 21. a first pulsator; 211. a first center of rotation; 212. a cambered surface; 213. mounting grooves; 214. a connecting shaft; 215. a connecting member; 216. a first fan blade; 22. a second pulsator; 221. a second center of rotation; 222. a second fan blade; 223. a third fan blade; 224. a fourth fan blade; 23. a drive member; 231. a drive shaft; d1, the rotation direction of the impeller; d2, laundry rotation direction; d3, turning over the clothes; m1, first axis of rotation; m2, second axis of rotation; 24. a gasket.

Detailed Description

The present application will be described in further detail with reference to the following drawings and examples. It is to be noted that the following examples are only illustrative of the present application, and do not limit the scope of the present application. Likewise, the following examples are only some examples and not all examples of the present application, and all other examples obtained by a person of ordinary skill in the art without any inventive step are within the scope of the present application.

The terms "first," "second," "third," "fourth," and the like in the description and in the claims of the present application and in the drawings described above, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Fig. 1 is a schematic structural view of a coaxial pulsator 10 provided in the present application, fig. 2 is a schematic structural view of the coaxial pulsator 10 in fig. 1, and fig. 3 is a schematic motion state view of the coaxial pulsator 10 in fig. 1.

Referring to fig. 1 and 2, the coaxial pulsator 10 includes an upper pulsator 11, a lower pulsator 12, and a driving structure 13. The upper impeller 11 is mounted on the lower impeller 12, the upper impeller 11 can rotate relative to the lower impeller 12, and the lower impeller 12 is fixedly connected with the driving structure 13.

Wherein, the rotation axis of the upper impeller 11 and the lower impeller 12 is L, that is, the upper impeller 11 and the lower impeller 12 are coaxially arranged, and no matter the upper impeller 11 or the lower impeller 12 rotates along the same rotation axis L.

Referring to fig. 3, the washing machine includes a drum 14, the drum 14 is hollow to form a laundry accommodating chamber Q, and the coaxial pulsator 10 is disposed in the laundry accommodating chamber Q. When the coaxial pulsator 10 operates to wash the laundry in the laundry accommodation chamber Q, the driving structure 14 drives the lower pulsator 12 to rotate. The washed clothes rotate to drive the upper impeller 11 to move, so that the upper impeller 11 performs auxiliary friction on the washed clothes.

Referring to fig. 3, when the coaxial pulsator 10 washes laundry, the laundry in the laundry accommodation chamber Q mainly moves in the first direction S1 and the second direction S2. The laundry is rotated in the laundry receiving chamber Q while the laundry is moved in the first direction S1, and the laundry is reversed in the laundry receiving chamber Q while the laundry is moved in the second direction S2.

When the clothes to be cleaned are cleaned by the synchronous pulsator 10, the cleaning effect of the clothes to be cleaned can be enhanced because the upper pulsator 11 performs auxiliary friction on the clothes.

However, the upper pulsator 11 is driven by water and clothes to rotate synchronously during the movement of the lower pulsator 12, and although the washing machine can perform an auxiliary friction function, the washing effect is very limited. When the rotation speed of the lower pulsator 12 is high, although the laundry inverting ability is improved and the washing ability is improved, the laundry may be excessively inverted, and entanglement and damage of the laundry may be increased. Also, the upper pulsator 11 and the lower pulsator 12 may rub the same laundry, causing damage to the laundry.

Based on this, the present application also provides a washing machine 20 capable of preventing laundry from being excessively turned and tangled, preventing damage to the laundry caused by rubbing the same laundry position all the time, and having a uniform cleaning effect.

Fig. 4 is a schematic structural diagram of the washing machine 20 provided in the present application, fig. 5 is a schematic structural diagram illustrating a structure formed by the first pulsator 21, the second pulsator 21 and the driving member 23 in fig. 4 being separated, and fig. 6 is a schematic structural diagram illustrating a motion state of the first pulsator 21 and the second pulsator 22 of the washing machine 20 in fig. 4.

Referring to fig. 4 and 5, the washing machine 20 includes a drum 14, a first pulsator 21, a second pulsator 22, and a driving member 23. The first pulsator 21, the second pulsator 22, and the driving member 23 constitute a pulsator system of the washing machine 20, the pulsator system being located in the drum 14.

Specifically, the drum 14 is formed with a laundry accommodating chamber Q for accommodating laundry to be washed, and the pulsator system is accommodated in the laundry accommodating chamber Q. The description of the drum 14 and the laundry accommodating cavity Q can be referred to above, and will not be repeated.

Specifically, the first pulsator 21 is horizontally disposed within the laundry accommodation chamber Q, and the first pulsator 21 is rotatable along its first rotation center 211. The second pulsator 22 is rotatably connected to the first pulsator 21 and is disposed on the top surface of the first pulsator 21, and the second pulsator 22 is capable of rotating around its second rotation center 221 by being driven by laundry.

More specifically, the first pulsator 21 may be disposed in a circle, the cross section of the laundry receiving cavity Q in the horizontal direction is also disposed in a circle, and the outer diameter of the first pulsator 21 is smaller than the diameter of the laundry receiving cavity Q, thereby enabling the first pulsator 21 to be disposed horizontally in the laundry receiving cavity Q. The first pulsator 21 may be disposed at the bottom of the laundry receiving chamber S and fixedly disposed on a rotation shaft, and drives the first pulsator 21 to rotate along a first rotation center 211 thereof when the rotation shaft rotates.

It should be understood that when the first pulsator 21 is disposed in a regular, center-symmetrical structure, the first rotation center 211 may be a center-symmetrical center of the first pulsator 21. When the first pulsator 21 is not disposed in a regular, centrosymmetric structure, the first rotation center 211 may be the center of the first pulsator 21 or other preset rotation centers.

The second pulsator 22 may also be disposed in a circular shape, and the diameter of the second pulsator 22 is smaller than that of the first pulsator 21, so that the second pulsator 22 may be disposed on the top surface of the first pulsator 21. Wherein, the second pulsator 22 may be rotatably disposed on the top surface of the first pulsator 21 by means of a rotating shaft, a snap, etc.

When the second pulsator 22 is disposed on the top surface of the first pulsator 21, the top surface of the second pulsator 22 may be disposed to be convex with respect to the top surface of the first pulsator 21, and the top surface of the second pulsator 22 may also be flush with the top surface of the first pulsator 21. When the top surface of the second pulsator 22 is flush with the top surface of the first pulsator 21, an accommodating groove may be formed at the upper portion of the first pulsator 21, and the second pulsator 22 may be rotatably disposed in the accommodating groove, so that the top surfaces of the first pulsator 21 and the second pulsator 22 are flush with each other.

In combination with the above, when the first pulsator 21 rotates, the clothes to be washed in the clothes accommodating chamber Q are driven to move, and the moving clothes to be washed generate friction with the second pulsator 22, thereby driving the second pulsator 22 to rotate.

Specifically, the driving member 23 is connected with the first pulsator 21 to drive the first pulsator 21 to rotate about the first rotation center 211. The driving member 23 has a driving shaft 231, and the driving shaft 231 can rotate on its own axis. One end of the driving shaft 231 is fixedly connected to the first pulsator 21, and the driving shaft 231 drives the first pulsator 21 to rotate around the first rotation center when rotating around its own axis.

More specifically, the first pulsator 21 is provided with a mounting hole at the position of the first rotation center 211, and the drive shaft 231 may be disposed in the mounting hole, thereby achieving a fixed connection between the first pulsator 21 and the drive shaft 231.

In some embodiments, the driving member 23 is disposed below the first pulsator 21 and within the cabinet of the washing machine 20. At this time, the driving shaft of the driving member 23 is protruded into the laundry receiving cavity Q to be connected with the first pulsator 21, and the remaining portion of the driving member 23 is sealed to ensure the stability of the operation of the driving member 23.

The driving member 23 may be configured as a driving motor, and the driving motor is connected to a controller of the washing machine 20, so as to control the rotation speed of the driving motor through the controller, and thus control the rotation speed of the first pulsator 21.

Wherein the second rotation center 221 is eccentrically arranged with respect to the first rotation center 211, i.e. the second rotation center 221 is horizontally spaced apart from the first rotation center 211.

In this arrangement, as shown in fig. 6, the first pulsator 21 rotates around the first rotation center 211 to drive the second pulsator 22 to rotate around the first rotation center, and the second pulsator 22 rotates around the second rotation center 221 simultaneously with the laundry, which may be a pulsator rotation direction D1. That is, the second pulsator 22 rotates around the first rotation center 211 and the second rotation center 221 during operation, that is, the second pulsator 22 can perform both revolution type and rotation type movements.

In the above-mentioned rotating manner, the laundry items to be cleaned are rotated in the laundry rotating direction D2 and turned over in the laundry turning direction D3, so as to achieve the rotating cleaning and the turning over cleaning of the laundry items.

In combination with the above, since the second pulsator 22 performs the revolution type and the rotation type motions at the same time, when the laundry is subjected to the spin washing and the inversion washing, the second pulsator 22 continuously rubs the laundry at different positions, and the laundry can be prevented from being damaged or entangled due to the rubbing of the laundry at the same position. Moreover, the clothes are continuously rubbed with the clothes at different positions, so that the uniformity of the clothes washing can be improved, and the washing effect of the washed clothes is further improved.

Referring to fig. 6, in some embodiments, the first pulsator 21 can rotate around a first rotation axis M1 passing through the first rotation center 211, the second pulsator 22 can rotate around a second rotation axis M2 passing through the second rotation center 221, and an included angle is formed between the first rotation axis M1 and the second rotation axis M2.

Wherein the first rotation axis M1 is a rotation axis when the first pulsator 21 rotates, and the second rotation axis M2 is a rotation axis when the second pulsator 22 rotates. The first rotation axis M1 and the second rotation axis M2 have an included angle therebetween, i.e., the first rotation axis M1 and the second rotation axis M2 intersect each other.

Of course, in other embodiments, the first rotation axis M1 and the second rotation axis M2 may be arranged in parallel, as shown in fig. 6. By arranging the first rotation axis M1 in parallel with the second rotation axis M2, the mounting of the second pulsator 22 is facilitated.

Fig. 7 is a schematic structural view of the first pulsator 21 of the washing machine 20 of fig. 4.

In combination with the above arrangement of the first rotation axis M1 and the second rotation axis M2 having an included angle therebetween, in some specific embodiments, the top surface of the first pulsator 21 is protruded to form an arc surface 212, and the second pulsator 22 is attached to the arc surface 212 of the first pulsator 21.

Specifically, the first pulsator 21 has a mounting side and a cleaning side, the cleaning side being a top surface side of the first pulsator 21, and the mounting side being a bottom surface side of the first pulsator 21. The mounting side is used for mounting at the bottom of the drum 14, and the cleaning side is used for cleaning the clothes to be cleaned. The top surface of the first pulsator 21 is protruded, i.e., the washing side is protruded, thereby forming a curved surface 212.

In combination with the above, a mounting groove 213 may be provided on the arc surface 212, so as to mount the second pulsator 22 in the mounting groove 213, so as to ensure that the second pulsator 22 has a smaller height of protrusion relative to the arc surface 212 or is even with the arc surface 212.

In this embodiment, since the top surface of the first pulsator 21 is disposed in the arc 212, and the first rotation axis M1 and the second rotation axis M2 are disposed in an intersecting manner, the second pulsator 22 can be better attached to the first pulsator. Also, when the second pulsator 22 is directly attached to the arc surface 212 without forming the mounting groove 213, the first rotation axis M1 and the second rotation axis M2 are arranged to intersect each other, so that not only the second pulsator 22 is better attached to the first pulsator 21, but also the second pulsator 22 can be prevented from affecting the washing of the laundry by the first pulsator 21.

Fig. 8 is a schematic structural diagram of another arrangement of the first pulsator 21 and the second pulsator 22 of the washing machine 20 provided by the present application.

Specifically, the number of the second pulsator 22 is plural, and the plurality of second pulsator 22 are provided on the top surface of the first pulsator 21 at intervals.

Specifically, the number of the plurality of second pulsator portions is greater than one, the shape and size of the plurality of second pulsator portions 22 may be the same, and the shape and size of the plurality of second pulsator portions 22 may be partially the same or completely different, and may be set as needed.

In some specific embodiments, the second pulsator 22 is disposed in a circular shape and has the same size, and the plurality of second pulsator 22 are disposed on the top surface of the first pulsator 21 in the same arrangement. Of course, in other specific embodiments, the second pulsator 22 has different shapes and sizes, and the second pulsator 22 may be disposed on the first pulsator 21 in different manners.

More specifically, the second rotation centers 221 of the plurality of second pulsator 22 are respectively at the same pitch in the horizontal direction as the first rotation centers 211, and the pitches between the second rotation centers 221 of two adjacent second pulsator 22 are the same.

In conjunction with the above, the second rotation centers 221 of the plurality of second pulsator 22 are respectively the same as the first rotation centers 211 in the horizontal direction in pitch, that is, the plurality of second pulsator 22 are eccentrically arranged with respect to the first pulsator 21 to the same extent. At this time, if the first rotation center 211 is used as a center of a circle, the second rotation centers 221 of the second pulsator 22 are located on the same arc. When the distance between the second rotation centers 221 of two adjacent second pulsator 22 is the same, in combination with the embodiment in which the eccentricity of the second pulsator 22 with respect to the first pulsator 21 is the same, the second rotation centers 221 of the plurality of second pulsator 22 are disposed on the same arc, and the arc length between the two second rotation centers 221 is equal.

With the above-described embodiment, the second pulsator 22 is regularly disposed on the top surface of the first pulsator 21, arrangement of the second pulsator 22 is facilitated, and a predetermined washing effect is easily achieved by detaching or adding the second pulsator 22.

More specifically, the diameter of the second pulsator 22 is equal to or greater than one fifth of the diameter of the first pulsator 11, and the number of the second pulsator 22 is equal to or less than four.

By setting the diameter of the second pulsator 22 to be equal to or greater than one fifth of the diameter of the first pulsator 21, the second pulsator 22 can have a good friction effect on the laundry when rotating. Correspondingly, the diameter of the second pulsator 22 also needs to be smaller than the preset maximum diameter to prevent the second pulsator 22 from affecting the washing effect of the first pulsator 21. Similarly, the number of the second pulsator 22 is set to be equal to or less than four, so that the second pulsator 22 has a better friction effect on the laundry, and a better washing effect is obtained.

In other embodiments, in order to obtain a specific washing effect, the diameter of the second pulsator 22 may be set to exceed a preset maximum diameter, and the number of the second pulsator 22 may exceed four. Of course, in this embodiment, the orthographic projection of the second pulsator 22 is located within the range of the first pulsator 21, so as to ensure that the second pulsator 22 does not exceed the setting range of the first pulsator 21, and avoid affecting the setting and installation of other structures.

Further, only the second rotation centers 221 of the plurality of second pulsator 22 are illustrated in fig. 8 as being spaced apart from the first rotation centers 211 in the horizontal direction, respectively. In other embodiments, in order to improve the effect of disposing the second pulsator 22, the interval between the second rotation centers 221 of a portion of the second pulsator 22 and the first rotation center 211 may be set to be a first interval, and the intervals between two adjacent second rotation centers 221 of the portion of the second pulsator 22 are the same. A distance between the second rotation center 221 and the second rotation center 211 of another portion of the second pulsator 22 is set to a second distance, and the first distance is different from the second distance. At this time, the intervals between the second rotation centers 221 of the other portions of the second pulsator 22 are the same.

Under this embodiment, the second pulsator 22 is arranged in a gradient manner in the horizontal direction of the first pulsator 21, so that the second pulsator 22 is arranged more uniformly on the top surface of the first pulsator 21, and more comprehensive and uniform friction is realized on the clothes, thereby realizing more uniform and clean washing effect.

Fig. 9 is an enlarged schematic view of the driving member 23 and the washer 24 in fig. 5.

Please refer to fig. 5 and 9, which are combined with the above-mentioned arrangement manner of connecting the driving shaft 231 with the center of the first pulsator 21. At this time, the center of the first pulsator 21 may be a first rotation center 211 of the first pulsator, and the driving shaft is used to drive the first pulsator 21 to rotate along the first rotation center 211.

The washing machine 20 includes a washer 24, and the washer 24 is provided with a through hole penetrating both sides of the washer 24, through which the driving shaft 231 passes through the washer 24 to be disposed in the washer 24. At this time, one side of the washer 24 abuts the first pulsator 21, and the other side of the washer 24 abuts the drive shaft 231.

Specifically, the gasket 24 may be fabricated from a flexible material, thereby providing the gasket 24 with some flexibility. By the provision of the gasket 24, friction between the second pulsator 22 and the driving member 23 may be reduced, thereby preventing abrasion damage between the second pulsator 22 and the driving member 23.

Referring to fig. 5, in some embodiments, the washing machine 20 includes a shaft 214, the shaft 214 is formed by an upper structure of the first pulsator 21 protruding upward, and the second pulsator 22 is rotatably disposed on the shaft 214.

Specifically, the shaft 214 may be a circular shaft, and the second pulsator 22 is correspondingly provided with a mounting hole, and the shaft 214 is mounted in the mounting hole, so that the second pulsator 22 is disposed on the shaft 214. And, the shaft 214 can be rotated in the mounting hole, thereby achieving rotation of the second pulsator 22 with respect to the first pulsator 21. Wherein, the mounting hole may be a blind hole, i.e., the mounting hole does not penetrate through the top surface of the second pulsator 22.

In connection with an embodiment in which the first pulsator 21 is disposed at the driving shaft 231, the washing machine 20 further includes a connection member 215, a connection hole may be disposed at a first rotation center 211 of the first pulsator 21, the connection member 215 is fixedly disposed in the accommodation hole 215, and a side of the connection member 215 adjacent to the driving shaft 231 may be fixedly connected to the driving shaft 231, and thus the connection member 215 is driven by the driving shaft 231 to rotate the first pulsator 21.

In the above embodiments, the connection member 215 may be regarded as a fixing structure on the first pulsator 21, and in other embodiments, the connection member may be regarded as a fixing structure on the second pulsator 22. For example, a shaft is formed by downwardly protruding a lower structure of the second pulsator 22, and the shaft is rotatably provided on the first pulsator. At this time, the second pulsator 22 is rotatable together with the shaft with respect to the first pulsator 21.

Fig. 10 is an enlarged schematic view of a structure of the second pulsator 22 in fig. 5, and fig. 11 is a schematic view of a structure of another embodiment of the second pulsator.

Referring to fig. 7, fig. 10 and fig. 11, specifically, a plurality of first blades 216 are convexly disposed on the top surface of the first pulsator 21, a plurality of second blades 222 are convexly disposed on the top surface of the second pulsator 22, and the first blades 216 and the second blades 222 are used for washing the laundry.

The length extending direction of the first fan blade 216 is a direction in which the first rotation center 211 of the first pulsator 21 faces the edge of the first pulsator 21. The first fan blade 216 may extend to the edge of the first impeller 21 through the first rotation center 211, and at this time, two ends of the first fan blade 216 are respectively disposed in contact with the edge of the first rotation center 211 and the first impeller 21, and the length of the first fan blade 216 is longer. The two ends of the first fan blade 216 may also be spaced from the first rotation center 211 and the edge of the first pulsator 21, respectively, and the length of the first fan blade 216 is shorter.

It should be understood that the first fan blade 216 is not disposed at the contact position of the first pulsator 21 and the second pulsator 22, so as to facilitate the installation of the second pulsator 22.

The second blades 222 of the second pulsator 22 may be disposed in part according to the disposition of the first blades 216. Referring to fig. 11, in other embodiments, the second impeller 22 is provided with a third blade 223, the third blade 223 is arranged in a circular shape with the second rotation center 221 as a center, and a plurality of the third blades 223 are arranged at intervals in a radial direction of the second impeller 22. In this embodiment, the second pulsator 22 further includes a plurality of fourth blades 224, the plurality of fourth blades 224 are disposed along the direction from the second rotation center 221 to the edge of the second pulsator 22, and the plurality of fourth blades 224 are disposed along the circumferential direction of the second pulsator 22. Through the arrangement of the fourth fan blade 224, the washing effect of the second pulsator 22 on the clothes can be enhanced.

Regarding the heights of the first blade 216 and the second blade 222, in some embodiments, the height of the protrusion of the first blade 216 is greater than or equal to 40mm, and the width of the first blade 216 is greater than or equal to 10 mm. The height of the second blade 222 is less than or equal to 25mm, and the width of the second blade 222 is less than or equal to 30 mm.

For example, the height of the first fan blade 216 is set to 40mm, 45mm, 50mm, etc., and the width of the first fan blade 216 is correspondingly set to 10mm, 12mm, 14mm, etc., respectively. The height of the second fan blade 222 is set to be 25mm, 23mm, 21mm, etc., and the width of the second fan blade 222 is set to be 30mm, 25mm, 20mm, etc., respectively.

It should be understood that the first fan blade 216 mainly plays a role of turning the clothes through the above-mentioned limitation of the height and width of the first fan blade 216. The second fan blade 222 mainly plays a role in rubbing the clothes due to the limitation of the height and the width of the protrusion of the second fan blade 222.

In this embodiment, the number of the second pulsator 22 may be three, as shown in fig. 8, to achieve a good washing effect.

In combination with the first pulsator 21 being eccentrically disposed with respect to the second pulsator 22, in some embodiments, the first rotation center 211 is spaced apart from the second rotation center 221 by more than 20mm in the horizontal direction.

In connection with fig. 6, in case the first rotation axis M1 is arranged in parallel with the second rotation axis M2, i.e. the spacing between the first rotation axis M1 and the second rotation axis M2 is more than 20 mm. Through the arrangement mode, the second impeller 22 can be fully rubbed with clothes, and a good cleaning effect is achieved.

The above embodiments are merely examples and are not intended to limit the scope of the present disclosure, and all modifications, equivalents, and flow charts using the contents of the specification and drawings of the present disclosure or those directly or indirectly applied to other related technical fields are intended to be included in the scope of the present disclosure.

Claims

1. A washing machine, characterized by comprising:

a drum formed with a laundry receiving chamber for receiving laundry to be washed;

a first pulsator horizontally disposed in the laundry accommodation chamber, the first pulsator being rotatable along a first rotation center thereof;

a driving member connected to the first pulsator to drive the first pulsator to rotate around the first rotation center;

the second impeller is rotatably connected with the first impeller and is positioned on the top surface of the first impeller, the second impeller can rotate around a second rotation center of the second impeller under the driving of the washed clothes, and the second rotation center is eccentrically arranged relative to the first rotation center.

2. The washing machine as claimed in claim 1,

the first pulsator is rotatable about a first rotation axis passing through the first rotation center, and the second pulsator is rotatable about a second rotation axis passing through the second rotation center, with an angle therebetween.

3. A washing machine according to claim 2,

the top surface of first impeller is protruding in order to be the cambered surface setting, the laminating of second impeller sets up on the cambered surface of first impeller.

4. The washing machine as claimed in claim 1,

the second impeller is a plurality of, and a plurality of second impeller locates at intervals each other on the top surface of first impeller.

5. The washing machine as claimed in claim 4,

the second rotating centers of the second impellers are respectively the same as the first rotating centers in the horizontal direction, and the second rotating centers of two adjacent second impellers are the same in distance.

6. A washing machine according to claim 4,

the diameter of the second impeller is more than or equal to one fifth of the diameter of the first impeller, and the number of the second impellers is less than or equal to four.

7. The washing machine as claimed in claim 1,

the driving part comprises a driving shaft, the driving shaft is connected with the center of the first impeller, and the driving shaft is used for driving the first impeller to rotate along the first rotation center;

the washing machine includes a washer through which the driving shaft passes, and one side of the washer abuts against the first pulsator.

8. The washing machine as claimed in claim 1,

the washing machine comprises a connecting shaft, the connecting shaft is formed by downward protruding of a lower structure of the second impeller, and the connecting shaft is rotatably arranged on the first impeller; alternatively, the first and second electrodes may be,

the connecting shaft is formed by upward bulge of the upper structure of the first impeller, and the second impeller is rotatably arranged on the connecting shaft.

9. The washing machine as claimed in claim 1,

a plurality of first fan blades are convexly arranged on the top surface of the first impeller, a plurality of second fan blades are convexly arranged on the top surface of the second impeller, and the first fan blades and the second fan blades are used for cleaning clothes to be cleaned;

the height of the bulge of the first fan blade is more than or equal to 40mm, the width of the first fan blade is more than or equal to 10mm, the height of the bulge of the second fan blade is less than or equal to 25mm, and the width of the second fan blade is less than or equal to 30 mm.

10. The washing machine as claimed in claim 1,

the distance between the first rotating center and the second rotating center in the horizontal direction is more than 20 mm.