Pulsator and washing machine having the same

Abstract

The present invention discloses a pulsator and a washing machine having the same, wherein the pulsator comprises: a first pulsator, wherein the first pulsator has a first disk surface for moving water flow, wherein the first disk surface is formed into a smooth and continuous annular curved surface, and the first pulsator is provided with a water hole vertically penetrating the first disk surface; and a second pulsator, wherein the first pulsator is connected to the second pulsator and is covered above the second pulsator, wherein the second pulsator has a second disk surface and a water-repelling rib connected to the second disk surface and protruding toward the first disk surface, and the second pulsator is provided with a water-replenishing hole vertically penetrating the second disk surface. According to the pulsator of the present invention, by combining the first pulsator having a smooth and continuous first disk surface with the second pulsator having a strong water-repelling ability, not only can the damage and wear to the clothes be reduced, but also the washing ability of the clothes can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of household appliances, in particular to a pulsator and a washing machine having the same. Background Art

[0002] In the related art, a pulsator washing machine with a higher wave crest has a strong water-discharging ability and a good washing effect, but it causes great damage and wear to clothes, so the washing speed will be relatively slow, and the washing time of each beat will be relatively shortened; a pulsator with a lower wave crest has a weak water-discharging ability and a poor washing effect, but it causes little damage and wear to clothes, so the washing speed will be relatively fast, and the washing time of each beat will be relatively increased; a pulsator with a medium wave crest is between the two. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a pulsator having a strong water-repelling ability and causing little damage and wear to clothes.

[0004] The present invention also provides a washing machine having the pulsator.

[0005] The impeller according to the first aspect of the present invention comprises: a first impeller, the first impeller having a first disk surface for moving water flow, the first disk surface being formed into a smooth and continuous annular curved surface, the first impeller being provided with a water passing hole vertically penetrating the first disk surface; a second impeller, the first impeller being connected to the second impeller and being covered above the second impeller, the second impeller having a second disk surface and a water-diverting rib connected to the second disk surface and protruding toward the first disk surface, the second impeller being provided with a water replenishment hole vertically penetrating the second disk surface.

[0006] According to the pulsator of the present invention, by combining a first pulsator with a smooth and continuous first disk surface with a second pulsator with a strong water-repelling ability, not only can the damage and wear to clothes be reduced, but also the ability to wash clothes can be improved.

[0007] In some embodiments, the first impeller and the second impeller are welded, bolted, or snap-fitted.

[0008] In some embodiments, the first disk surface is formed as an inclined surface extending upward from inside to outside in a radial direction.

[0009] In some embodiments, at least a portion of the first disk surface is formed as a water-repelling portion extending in an undulating manner in a circumferential direction, and the water-repelling portion includes a wave crest protruding upward on the first impeller.

[0010] In some embodiments, the climbing angle of the side surfaces of the wave crest located on the circumferential direction of the first impeller relative to the horizontal plane is not greater than 30°.

[0011] In some embodiments, the water-repelling portion and the water-repelling rib are vertically opposite to each other.

[0012] In some embodiments, the first impeller includes a column portion, a disk portion and a flange portion arranged in sequence from the inside to the outside in the radial direction, the column portion is in the shape of a hollow column with an open bottom and a closed top, the disk portion is in the shape of a ring extending circumferentially around the column portion and extending radially outward, the flange portion is connected to the radially outer end of the disk portion and extends radially outward and downward, wherein the upper surface of the disk body portion forms the first disk surface.

[0013] In some embodiments, the second impeller includes a central portion and a flat portion, the central portion is formed as a column extending axially along the second impeller, the flat portion is connected to the radially outer side of the central portion and extends horizontally outward along the radial direction of the second impeller, and the water-repellent ribs are formed on the flat portion.

[0014] In some embodiments, the total flow cross-sectional area of ​​the water holes is not less than 50% of the total area of ​​the first disk surface.

[0015] In some embodiments, the impeller further includes a filter screen, which is connected to the first impeller and covers the water passing hole.

[0016] In some embodiments, the water-repelling ribs include a plurality of water-repelling ribs, the plurality of water-repelling ribs extend along the radial direction of the second impeller and are evenly spaced apart in the circumferential direction of the second impeller, and the second disk surface is connected between two adjacent water-repelling ribs.

[0017] In some embodiments, the climbing angle of the two side surfaces of the water-repelling ribs in the circumferential direction of the second impeller relative to the second disk surface is not less than 45°.

[0018] In some embodiments, the water replenishment holes are formed on the second disk surface, and the total flow cross-sectional area of ​​the water replenishment holes is not less than 40% of the total area of ​​the second disk surface.

[0019] A washing machine according to a second aspect of the present invention comprises the pulsator according to the first aspect of the present invention.

[0020] According to the washing machine of the present invention, the overall performance of the washing machine is improved by providing the pulsator of the first aspect.

[0021] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1is a top view of a pulsator according to an embodiment of the present invention;

[0023] Figure 2 is along Figure 1 Sectional view along line AA;

[0024] Figure 3 yes Figure 1 A side view of the impeller shown in ;

[0025] Figure 4 yes Figure 1 A schematic diagram of a three-dimensional view of the impeller shown in ;

[0026] Figure 5 yes Figure 1 A schematic diagram of another angle of the impeller shown in FIG.

[0027] Figure 6 yes Figure 1 A top view of the first impeller shown in ;

[0028] Figure 7 yes Figure 6 A side view of the first impeller shown in ;

[0029] Figure 8 yes Figure 6 A schematic diagram of a perspective view of a first impeller shown in ;

[0030] Fig. 9 yes Figure 6 A schematic diagram of another angle of the first impeller shown in FIG.

[0031] Fig.10 yes Figure 1 A top view of the second impeller shown in ;

[0032] Fig.11 is along Fig.10 Sectional view along the midline BB;

[0033] Fig.12 yes Fig.10 A side view of the second impeller shown in ;

[0034] Fig.13 yes Fig.10 A schematic diagram of a perspective view of a second impeller shown in ;

[0035] Fig.14 yes Fig.10 A schematic diagram of another angle of the second impeller shown in FIG.

[0036] Reference numerals:

[0037] Pulsator 100,

[0038] The first impeller 1, the first disk surface 11, the water hole 12, the water-displacing portion 13, the water-displacing cavity 101, the column portion 14, the disk portion 15, the flange portion 16,

[0039] The second impeller 2 , the second disk surface 21 , the water supply hole 22 , the water diverter rib 23 , the drainage rib 24 , the connecting hole 25 , the spline 26 , the central part 27 , and the flat plate part 28 . DETAILED DESCRIPTION

[0040] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0041] Reference below Figure 1-Figure 14 A pulsator 100 according to an embodiment of a first aspect of the present invention is described.

[0042] like Figure 2 As shown, the pulsator 100 according to the first embodiment of the present invention includes: a first pulsator 1 and a second pulsator 2 .

[0043] Specifically, the first pulsator 1 has a first disk surface 11, which is formed as a smooth and continuous annular curved surface. The first disk surface 11 is used to stir the water flow. When the pulsator 100 is arranged in the barrel body, the water flow is stirred by the smooth and continuous first disk surface 11, which can reduce damage and wear to clothes. Moreover, since the first disk surface 11 is relatively smooth and continuous, the damage to clothes is small, and the rotation speed of the pulsator 100 can also be increased. In this way, the washing time of clothes in each beat can be increased, thereby further improving the cleaning ability of clothes and improving the washing ratio.

[0044] Reference Figure 2 The first impeller 1 may be provided with a water hole 12, and the water hole 12 may be arranged along a vertical direction (eg Figure 2 In the vertical direction shown in FIG, 1 , the water hole 12 penetrates the first disk surface 11, that is, the water hole 12 penetrates the first impeller 1 in the vertical direction, and the water hole 12 can connect the upper side of the first impeller 1 and the lower side space of the first impeller 1. In this way, when the impeller 100 is rotating, the water flow on the lower side of the first impeller 1 can pass through the water hole 12 through the first impeller 1 to rinse the clothes located above the first impeller 1. When the water flow passing through the water hole 12 is relatively strong, the rinsing force of the clothes can be enhanced and the washing ability of the clothes can be improved. At the same time, the water flow passing through the water hole 12 can also provide a turning power for the clothes on the upper side of the first impeller 1, thereby promoting the washing of clothes.

[0045] The first impeller 1 can be connected to the second impeller 2, and the first impeller 1 is covered above the second impeller 2, that is, the first impeller 1 is not only located above the second impeller 2, but also covers the second impeller 2 inside the first impeller 1. Here, the first impeller 1 covers the second impeller 2 inside the first impeller 1, which may include the following situations: the second impeller 2 is completely radially inside the first impeller 1 in the horizontal projection plane, or it may mean that most of the second impeller 2 is located radially inside the first impeller 1 in the horizontal projection plane, and a small part exceeds the radial outside of the first impeller 1, wherein the aforementioned most of the second impeller 2 may be the area where the second impeller 2 is provided with the water-repelling rib. Further, since the first impeller 1 is covered above the second impeller 2, at this time, the first impeller 1 and the second impeller 2 cooperate to define a water-repelling cavity 101 located at the lower side of the first impeller 1 and at the upper side of the second impeller 2.

[0046] Furthermore, the second impeller 2 has a second disk surface 21 and a water-repelling rib 23, the water-repelling rib 23 is connected to the second disk surface 21, and the water-repelling rib 23 protrudes toward the first disk surface 11, that is, the water-repelling rib 23 is formed on the side of the second impeller 2 facing the first impeller 1 (for example Figure 2 The water-repelling rib 23 protrudes and extends toward the first impeller 1 (for example, Figure 2 ) As shown in the figure, since the water-repelling ribs 23 extend upward relative to the second disk surface 21 of the second impeller 2, during the rotation of the impeller 100, the water-repelling ribs 23 on the second impeller 2 can move the water flow during the rotation to form a pressure water flow with a strong impact force. When this strong water flow rushes upward through the water holes 12 on the first impeller 1, a strong impact water flow can be formed, thereby providing a strong impact force for the clothes located above the first impeller 1, promoting the turning of the clothes and improving the washing ability. In addition, since the first impeller 1 covers the second impeller 2 inside, especially the first impeller 1 covers the water-repelling ribs 23 formed on the upper side surface of the second impeller 2 inside, even when the second impeller 2 rotates rapidly, since the water-repelling ribs 23 are hidden under the first impeller 1, they do not contact the clothes. Therefore, the water-repelling ribs 23 can provide a strong water flow without causing damage and wear to the clothes.

[0047] In some embodiments, a water replenishment hole 22 may be formed on the second impeller 2. The shape, size and direction of the water replenishment hole are not limited, as long as it can penetrate the second disk surface 21. In some embodiments, the water replenishment hole 22 is vertical (for example Figure 2) penetrates the second disk surface 21. That is to say, the water replenishing hole 22 penetrates the second impeller 2 in the vertical direction, and the water replenishing hole 22 connects the upper space of the second impeller 2 (such as the water diverting cavity 101 described above) and the lower space of the second impeller 2. In this way, in the process of washing clothes, when the water flow in the water diverting cavity 101 between the first impeller 1 and the second impeller 2 is flushed out from the water passing hole 12 under the strong action of the water diverting rib 23 for washing clothes, the washing water located at the lower side of the second impeller 2 can enter the water diverting cavity 101 through the water replenishing hole 22 on the second impeller 2, thereby replenishing the water source for the water diverting cavity 101, so as to ensure that there is sufficient water in the water diverting cavity 101 for the next beat of water diverting washing.

[0048] like Figure 1 and Figure 2 As shown, the impeller 100 is disposed in the barrel body, and the impeller 100 divides the space in the barrel body into a washing chamber located above the impeller 100 and a drainage chamber located below the impeller 100. The impeller 100 has a first impeller 1 and a second impeller 2 arranged in an upper and lower manner, the first impeller 1 is located above the second impeller 2, a water-pumping chamber 101 is formed between the second impeller 2 and the second impeller 2, a water-passing hole 12 is formed on the first impeller 1 and passes through the first impeller 1 in the upper and lower directions, and the water-passing hole 12 is communicated with the water-pumping chamber 101, in other words, the water-passing hole 12 is formed on the top wall of the water-pumping chamber 101, and is used to connect the washing chamber and the water-pumping chamber 101, and a water-replenishing hole 22 is formed on the second impeller 2 and passes through the second impeller 2 in the upper and lower directions, and the water-replenishing hole 22 is communicated with the water-pumping chamber 101, in other words, the water-replenishing hole 22 is formed on the bottom wall of the water-pumping chamber 101, and is used to connect the water-pumping chamber 101 with the drainage chamber.

[0049] Furthermore, if Figure 2 As shown, a water-repelling rib 23 is formed on the upper surface of the second impeller 2. The water-repelling rib 23 includes a plurality of water-repelling ribs 23, which are evenly spaced along the circumference of the second impeller 2, and the water-repelling rib 23 protrudes upward relative to the disk surface of the second impeller 2. Preferably, the upper end of the water-repelling rib 23 extends to the lower surface adjacent to the first impeller 1, so that the height of the water-repelling rib 23 in the vertical direction can be increased, and the water-repelling ability of the water-repelling rib 23 can be further enhanced. The plurality of water-repelling ribs 23 are all located in the water-repelling cavity 101, and the upper surface of the first impeller 1 is formed with a first disk surface 11, which is formed as a smooth and continuous curved surface.

[0050] Thus, when the pulsator 100 is used to wash clothes, since the first disk surface 11 of the first pulsator 1 is relatively smooth, even if there are undulating crests formed on the first pulsator 1 in the circumferential direction of the first pulsator 1, the crest height is relatively low, the transition is smooth, and the damage and wear to the clothes are small. At the same time, since the second pulsator 2 is formed with a water-repelling rib 23, the water-repelling rib 23 is upwardly protruding relative to the second disk surface 21, and the crest height is relatively high relative to the second disk surface 21, it can provide a strong water flow, and make the strong water flow rush out from the water hole 12 for washing clothes, and the water replenishment hole 22 can be a water source for replenishing the water in the water-repelling cavity 101. Therefore, the pulsator 100 of the embodiment of the present invention can reduce the damage and wear to the clothes, and can further increase the rotation speed of the pulsator 100, so that the pressure water flow generated by the water-repelling rib 23 is stronger, and the ability to wash clothes is improved.

[0051] According to the pulsator 100 of the embodiment of the present invention, by combining the first pulsator 1 with a smooth and continuous first disk surface 11 with the second pulsator 2 with a strong water-repelling ability, not only can the damage and wear to clothes be reduced, but also the washing ability of clothes can be improved.

[0052] According to some specific embodiments of the present invention, Figure 4 and Figure 8 As shown, the first disk surface 11 is formed as an inclined surface extending upward from the inside to the outside in the radial direction. In this way, during the rotation of the first impeller, the first disk surface can play a role in guiding the water flow upward, guiding the water flow to spiral upward, and promoting the tumbling and washing of clothes.

[0053] According to some specific embodiments of the present invention, Figure 4 and Figure 8 As shown, at least part of the first disk surface 11 is formed into a water-repelling portion 13 extending in an undulating manner in the circumferential direction, and the water-repelling portion includes a wave crest protruding upward on the first impeller. During the rotation of the first impeller, the protruding wave crest can move water flow for washing clothes.

[0054] Further, the climbing angle of the side surfaces of the wave crest located on the circumferential direction of the first impeller relative to the horizontal plane is not greater than 30°. That is to say, a water-repelling portion 13 is formed on the first disk surface 11, and in the circumferential direction of the first disk surface 11, the water-repelling portion 13 extends along the up and down undulations, and in the vertical direction, the undulation degree of the water-repelling portion 13 relative to the up and down direction is small and relatively gentle. Specifically, the upward inclination angle of the two side surfaces of the water-repelling portion 13 in the circumferential direction of the first disk surface 11 relative to the horizontal plane does not exceed 30 degrees. For example, the upward inclination angle of the two side surfaces of the water-repelling portion 13 in the circumferential direction of the first disk surface 11 relative to the horizontal plane can be 5°, 10°, 15°, 20° or 25°, etc. In this way, not only can the wear on the clothes be reduced, but also the water-repelling portion 13 can play a certain degree of water-repelling ability and improve the washing ability.

[0055] like Figure 8 As shown, the first disk surface 11 is formed as a smooth and continuous annular curved surface in the circumferential direction of the first impeller 1. In the radial outward direction of the first impeller 1, the first disk surface 11 extends upwardly and obliquely, that is, the first disk surface 11 is formed as an inclined surface extending upwardly and obliquely from the inside to the outside in the radial direction. Further, a plurality of water-repelling parts 13 are formed on the first disk surface 11, and the plurality of water-repelling parts 13 are arranged at intervals in the circumferential direction of the first disk surface 11, and the water-repelling parts 13 are formed by the first disk surface 11 protruding upward in the up and down directions. Each water-repelling part 13 is formed as an upwardly protruding, relatively gentle wave crest on the first impeller 1, which is used to move the water flow to wash clothes. Among them, the water-repelling part 13 has two side surfaces for moving the water flow arranged oppositely in the circumferential direction of the first disk surface 11, and the angle of the two side surfaces inclined upward relative to the horizontal plane is less than or equal to 30°. Thus, the first pulsator 1 can be formed into a pulsator 100 with a low wave crest, which reduces damage and wear to clothes, and can increase the rotation speed of the pulsator 100, increase the washing time of each beat, and improve the washing ability of clothes.

[0056] Furthermore, the water-repelling portion 13 of the first impeller 1 can be vertically opposite to the water-repelling rib 23 of the second impeller 2. In other words, the water-repelling portion 13 corresponds to the water-repelling rib 23 one by one and is vertically opposite to each other. Preferably, the water-repelling portion 13 is formed by the upward depression of the portion of the first impeller 1 that is opposite to the water-repelling rib 23. In this way, the upward depression of the first impeller 1 can avoid the water-repelling rib 23. Since the portion of the first impeller 1 is upwardly depressed, the distance between the portion and the second impeller 2 is increased. Therefore, the height of the water-repelling rib 23 provided at the position can be increased accordingly, thereby increasing the water-repelling area of ​​the water-repelling rib 23 and further enhancing the water-repelling ability. In addition, since the water-repelling rib 23 can extend into the upward depression of the first impeller 1, the distance between the first impeller 1 and the second impeller 2 can be reduced, the structure of the impeller 100 can be compacted, and the occupied space of the impeller 100 can be reduced.

[0057] In some specific embodiments of the present invention, referring to Figure 8, the total flow cross-sectional area of ​​the water holes 12 is not less than 50% of the total area of ​​the first disk surface 11. For example, the total water flow area of ​​the water holes 12 can be 55%, 60%, 65%, 70%, 75%, 80%, 85%, 90% or 95% of the total area of ​​the first disk surface 11. In this way, when the water-diverting rib 23 located in the water-diverting cavity 101 at the lower side of the water holes 12 diverts the water flow, the water holes 12 can allow the water flow with strong pressure to pass through the water holes 12 smoothly, which is used to impact and wash clothes, and at the same time provide power for the turning of clothes. That is to say, by making the total flow cross-sectional area of ​​the water holes 12 not less than 50% of the area of ​​the first disk surface 11, the present embodiment can reduce the resistance to the pressure water flow passing through the water holes 12, ensure that the strong water flow can be directly used to wash clothes, and ensure the washing ability of clothes.

[0058] like Figure 8 As shown, a plurality of water hole groups may be formed on the first pulsator 1, and the plurality of water hole groups are arranged at intervals in the circumferential direction of the first pulsator 1. Each water hole group may include a plurality of water holes 12, and the plurality of water holes 12 are arranged at intervals in the radial direction of the first pulsator 1. Thus, the water holes 12 can be conveniently arranged, the total flow area of ​​the water holes 12 is increased, the resistance to the pressure water flow is reduced, and the cleaning ability is improved.

[0059] Furthermore, the cross section of the water hole 12 can be formed into a square. Figure 8 As shown, the cross-section of the water holes 12 perpendicular to the up and down directions can be formed into a trapezoidal structure, for example, an isosceles trapezoidal structure, and in the radial direction from the inside to the outside of the first impeller 1, the cross-sectional area of ​​the multiple water holes 12 in each group gradually increases. At this time, the multiple groups of water holes 12 on the first impeller 1 are arranged in a grid shape on the first disk surface 11 of the first impeller 1, thereby having a simple structure and convenient processing and forming.

[0060] Of course, the present invention is not limited thereto, and in other embodiments, the cross-section of the water hole 12 may also be formed into other shapes such as circle, ellipse, triangle, pentagon, hexagon, octagon, etc., which are not specifically limited here.

[0061] According to some specific embodiments of the present invention, the impeller 100 may further include a filter (not shown), which is connected to the first impeller 1 and covers the water hole 12. Here, it can be understood that when the cross-sectional area of ​​a single water hole 12 is too large, foreign matter in the washing chamber can easily pass through the water hole 12 into the water diversion chamber 101 in the impeller 100 or further pass through the water diversion chamber 101 and the water replenishment hole 22 into the drainage chamber below the impeller 100, and foreign matter is inconvenient to clean and is easy to clog. Therefore, this embodiment covers the filter at the position of the water hole 12 to prevent foreign matter from entering the impeller 100 or the space below the impeller 100.

[0062] Preferably, the filter screen can be integrally injection molded with the first impeller 1 , thereby improving the connection reliability between the first impeller 1 and the filter screen. For example, the filter screen can be injected into the inner membrane of the first impeller 1 .

[0063] like Figure 8 As shown, the first pulsator 1 is an integrally formed part. The first pulsator 1 includes a columnar portion 14, a disc portion 15 and a flange portion 16 which are sequentially arranged from the inside to the outside in the radial direction. Specifically, the columnar portion 14 is formed in a hollow circular columnar shape, and the upper end of the columnar portion 14 is closed and the lower end is open. The disc portion 15 is in the shape of an annular plate extending circumferentially around the columnar portion, and the inner end edge of the disc portion 15 is connected to the lower end edge of the columnar portion 14. In the radial direction from the inside to the outside, the disc portion 15 extends upwardly and obliquely. The upper surface of the disc portion 15 is formed as the first disc surface 11 of the first pulsator 1. Part of the disc portion 15 protrudes upward and is formed as a water-repelling portion 13. A plurality of water holes 12 are formed on the disc portion 15 that pass through the disc portion in the up-down direction. The plurality of water holes 12 are arranged at intervals in the circumferential direction and radial direction of the disc portion 15, and the cross-sections of the plurality of water holes 12 gradually increase in the radial direction from the inside to the outside. The flange portion 16 is connected to the outer end edge of the disc body 15 , and is formed into an annular shape surrounding the disc body 15 . The flange portion 16 extends downwardly and obliquely from the inside to the outside in the radial direction, and the lower end edge of the flange portion 16 is sealed and connected to the second impeller 2 .

[0064] According to some embodiments of the present invention, Fig.10 As shown, the water-repelling ribs 23 may include a plurality of water-repelling ribs 23, which extend in the radial direction of the second impeller 2, and are evenly spaced in the circumferential direction of the second impeller 2, and the second disk surface 21 is connected between two adjacent water-repelling ribs 23. Thus, the plurality of water-repelling ribs 23 can enhance the water-repelling ability of the second impeller 2 and enhance the water flow pressure passing through the water hole 12.

[0065] In some specific embodiments of the present invention, Figure 10-13 As shown, the climbing angle of the two side surfaces of the water-repelling muscle 23 in the circumferential direction of the second impeller 2 relative to the second disk surface 21 can be not less than 45°. That is, the water-repelling muscle 23 has two side walls opposite to each other in the circumferential direction of the second impeller 2. In the up-down direction, the two side walls of the water-repelling muscle 23 extend upwardly inclined relative to the second disk surface 21, and the upward climbing inclination angle of the two side walls of the water-repelling muscle 23 is not less than 45°, that is, the climbing angle of the two side walls of the water-repelling muscle 23 is large, and the wave crest of the water-repelling muscle 23 is high, thereby improving the water-repelling ability of the water-repelling muscle 23, enhancing the water flow pressure, and enhancing the ability to wash clothes. For example, the climbing angle of the two side walls of the water-repelling muscle 23 in the circumferential direction of the second impeller 2 can be 50°, 55°, 60°, 65°, 70°, 75°, 80° or 85°, etc.

[0066] In an embodiment of the present invention, Fig.13 As shown, in the radially outward direction of the pulsator 100, the water-repelling ribs 23 extend obliquely outward along the circumference of the pulsator 100. Thus, the water-repelling ability of the water-repelling ribs 23 can be improved, and the washing effect can be enhanced.

[0067] In some specific embodiments of the present invention, the water replenishment holes 22 may be formed in the second disk surface 21, and the total flow cross-sectional area of ​​the water replenishment holes 22 is not less than 40% of the total area of ​​the second disk surface 21. For example, the total flow cross-sectional area of ​​the water replenishment holes 22 may be 45%, 50%, 55%, 60%, 65%, 70%, 75%, 80%, 85%, 90% or 95% of the total area of ​​the second disk surface 21. In this way, when the water flow in the water diversion cavity 101 is quickly flushed out from the water hole 12 under the action of the water diversion rib 23, the water replenishment holes 22 can quickly replenish water to the water diversion cavity 101.

[0068] According to some embodiments of the present invention, the lower side surface of the bottom of the impeller 100 is further formed with drainage ribs 24, such as Figure 5 As shown, the lower side of the second pulsator 2 is formed with a downwardly extending drainage rib 24, and the drainage rib 24 includes a plurality of drainage ribs 24, which are arranged at intervals in the circumferential direction of the pulsator 100. During the process of washing clothes, the drainage rib 24 can move the water flow under the pulsator 100, promote the circulation of the water flow, and promote the drainage process. In addition, the drainage rib 24 can enhance the strength of the second pulsator 2 and increase its service life.

[0069] According to some embodiments of the present invention, Figure 2 As shown, the outer surface of the bottom of the impeller 100 may be formed with a connection hole 25 for connecting with the drive shaft, that is, the bottom wall of the impeller 100 is formed with a connection hole 25, and the connection hole 25 extends upward from the outer surface of the bottom of the impeller 100. The connection hole 25 is used to connect the drive shaft of the driving device. The drive shaft is inserted into the connection hole 25 to drive the impeller 100 to rotate. Figure 2 As shown, the lower surface of the second impeller 2 is provided with an upwardly extending connection hole 25, and a spline 26 is embedded in the connection hole 25. The spline 26 is used for driving connection with the driving shaft of the driving device of the impeller 100. Thus, the impeller 100 can be conveniently connected to the driving device.

[0070] Furthermore, if Figure 2 As shown, the connection hole 25 is suitable for embedding the spline 26, and the impeller 100 is suitable for integral injection molding with the spline 26. Therefore, by integrally injecting the spline 26 and the impeller 100 (or the second impeller 2), the connection reliability between the spline 26 and the impeller 100 can be improved. In addition, by embedding the spline 26 for transmission connection with the drive shaft, the transmission stability between the drive shaft and the impeller 100 can be improved.

[0071] like Figure 10-Figure 14 As shown, the second impeller 2 is an integrally formed part. The second impeller 2 includes a central portion 27 and a flat portion 2828. The central portion 27 is formed in a cylindrical shape extending along the axial direction of the second impeller 2. A connecting hole 25 is formed on the lower surface of the central portion 27. A spline 26 for connecting to the drive shaft is embedded in the connecting hole 25. In the direction from bottom to top, the cross-sectional area of ​​the central portion 27 gradually decreases, and the outer contour of the cross section of the central portion 27 is circular. The flat plate portion 28 is formed in the shape of an annular plate extending in the horizontal direction, and the radial inner end of the flat plate portion 28 is connected to the outer peripheral edge of the central portion 27. The flat plate portion 28 is formed with an upwardly protruding water-repelling rib 23, and the water-repelling rib 23 includes three water-repelling ribs 23 arranged at intervals in the circumferential direction of the flat plate portion 28. The inner end of the water-repelling rib 23 is connected to the central portion 27, and the outer end of the water-repelling rib 23 extends outwardly along the circumference of the second impeller 2 in a radial direction from inside to outside. The upper surface of the portion of the flat plate portion 28 where the water-repelling rib 23 is not provided is formed as the second disk surface 21 of the second impeller 2, and the flat plate portion 28 is formed with a water-replenishing hole 22 that passes through the second disk surface 21 of the flat plate portion 28, and the water-replenishing hole 22 is formed in a grid shape.

[0072] Specifically, the flat plate portion 28 is provided with a plurality of water replenishment areas, one water replenishment area is provided between each two adjacent water-repelling ribs 23, and each water replenishment area is provided with a plurality of water replenishment holes 22 arranged at intervals in the circumferential and radial directions of the second impeller 2. In the radial direction from the inside to the outside of the second impeller 2, the cross-sectional areas of the plurality of water replenishment holes 22 gradually increase. Optionally, the cross-section of the water replenishment hole 22 can be formed into a square. Specifically, as Fig.13 As shown, the cross section of the water replenishment hole 22 perpendicular to the up and down direction can be formed into a trapezoidal structure, for example, an isosceles trapezoidal structure. Of course, the present invention is not limited thereto. In other embodiments, the cross section of the water replenishment hole 22 can also be formed into other shapes such as a circle, an ellipse, a triangle, a pentagon, a hexagon, an octagon, etc., which are not specifically limited here.

[0073] Furthermore, downwardly protruding drainage ribs 24 are formed on the lower surfaces of the flat portion 28 and the central portion 27 , and the drainage ribs 24 extend in a straight line along the radial direction of the second pulsator 2 .

[0074] In one embodiment of the present invention, the first impeller 1 and the second impeller 2 can be connected by welding, or by bolts, or by snaps. In other words, the first impeller 1 and the second impeller 2 of this embodiment are separately arranged, and the connection method between the first impeller 1 and the second impeller 2 can be selected according to actual conditions, as long as the first impeller 1 and the second impeller 2 can be fixedly connected.

[0075] In some other embodiments of the present invention, the first impeller 1 and the second impeller 2 are integrally formed. In other words, the impeller 100 of this embodiment is an integrally formed part.

[0076] like Figure 2 As shown, the impeller 100 according to the embodiment of the first aspect of the present invention is integrally formed, that is, the impeller 100 of the embodiment of the present invention is an integrally formed part, so that the overall stability and reliability of the impeller 100 can be improved.

[0077] Specifically, a first disk surface 11 is formed on the upper side of the pulsator 100. The first disk surface 11 is used to stir the water flow. The first disk surface 11 is formed as a smooth and continuous annular curved surface. When the pulsator 100 is arranged in the barrel, the water flow is stirred by the smooth and continuous first disk surface 11, which can reduce the damage and wear to the clothes. Since the first disk surface 11 is relatively smooth and continuous, the damage to the clothes is small, and the rotation speed of the pulsator 100 can also be increased. In this way, the washing time of the clothes in each beat can be increased, thereby further improving the cleaning ability of the clothes and improving the washing ratio.

[0078] Furthermore, a closed water-diverting chamber 101 is formed in the impeller 100, and a plurality of water-diverting ribs 23 are arranged at intervals around the central axis of rotation of the impeller 100 in the water-diverting chamber 101. A water-passing hole 12 is formed on the impeller 100, and the water-passing hole 12 passes through the top wall of the water-diverting chamber 101. The water-passing hole 12 can be connected between the water-diverting chamber 101 and the upper space of the impeller 100. In this way, when the impeller 100 rotates, the water-diverting ribs 23 can dig the water flow in the water-diverting chamber 101 during the rotation process to form a pressure water flow with a strong impact force. The pressure water flow can pass through the impeller 100 upward through the water-passing hole 12 to wash the clothes located above the impeller 100, thereby enhancing the washing force of the clothes and improving the washing ability of the clothes. At the same time, the water flow passing through the water-passing hole 12 can also provide a turning power for the clothes on the upper side of the impeller 100, thereby promoting the washing of the clothes.

[0079] A water replenishment hole 22 is formed on the impeller 100, and the water replenishment hole 22 passes through the bottom wall of the water-dipping chamber 101, that is, the water replenishment hole 22 is connected between the water-dipping chamber 101 and the lower space of the impeller 100. In this way, in the process of washing clothes, when the water flow in the water-dipping chamber 101 is flushed out from the water hole 12 for washing clothes under the strong action of the water-dipping rib 23, the washing water located on the lower side of the impeller 100 can enter the water-dipping chamber 101 through the water replenishment hole 22, thereby replenishing the water source for the water-dipping chamber 101 to ensure that there is sufficient water in the water-dipping chamber 101 for the next beat of water-dipping washing.

[0080] like Figure 1 and Figure 2As shown, the impeller 100 is disposed in the barrel body, and the impeller 100 divides the space in the barrel body into a washing chamber located above the impeller 100 and a drainage chamber located below the impeller 100. The impeller 100 has a water-diverting chamber 101, and a plurality of water-diverting ribs 23 are formed in the water-diverting chamber 101. The impeller 100 has a water-passing hole 12 connected between the washing chamber and the water-diverting chamber 101, and a water-replenishing hole 22 connected between the water-diverting chamber 101 and the drainage chamber is also formed on the impeller 100. The first disk surface 11 on the upper side of the impeller 100 is formed as a smooth and continuous curved surface.

[0081] Thus, when the impeller 100 is used to wash clothes, since the first disk surface 11 is relatively smooth, in the circumferential direction of the impeller 100, even if there are undulating crests formed on the first impeller 1, the crest height is relatively low, the over-smoothing is performed, and the damage and wear to the clothes are small. At the same time, a water-repelling rib 23 is formed in the water-repelling cavity 101, and the water-repelling rib 23 extends in the axial direction of the impeller 100. The crest height of the water-repelling rib 23 in the axial direction is relatively high. During the rotation of the impeller 100, a strong water flow can be provided, and a strong water flow is flushed out from the water hole 12 for washing clothes. In addition, the water replenishment hole 22 can be a water source for replenishing the water in the water-repelling cavity 101. Therefore, the impeller 100 of the embodiment of the present invention can reduce the damage and wear to the clothes, and the rotation speed of the impeller 100 can be further increased due to the small wear on the clothes, so that the pressure water flow generated by the water-repelling rib 23 can be made stronger, and the ability to wash the clothes can be improved.

[0082] The pulsator 100 according to the embodiment of the present invention can reduce the damage and wear to the clothes and improve the ability to wash the clothes.

[0083] According to some embodiments of the present invention, referring to Figure 2 , the water-repelling rib 23 is connected to the top wall and / or bottom wall of the water-repelling cavity 101 and extends along the axial direction of the impeller 100. That is to say, the water-repelling rib 23 can be connected only to the top wall of the water-repelling cavity 101, and the water-repelling rib 23 extends toward the bottom wall of the water-repelling cavity 101 in the axial direction of the impeller 100; the water-repelling rib 23 can also be connected only to the bottom wall of the water-repelling cavity 101, and the water-repelling rib 23 extends toward the top wall of the water-repelling cavity 101 in the axial direction of the impeller 100; the two ends of the water-repelling rib 23 in the axial direction of the impeller 100 can be connected to the top wall and the bottom wall of the water-repelling cavity 101 respectively, and the water-repelling rib 23 is connected between the top and the bottom wall of the water-repelling rib 23, which can not only play the effect of moving the water flow to generate pressure water flow, but also improve the overall strength of the impeller 100 and improve the service life.

[0084] According to some embodiments of the present invention, the water hole 12 may be covered with a filter, and the filter may be integrally injection molded with the impeller 100. Here, it is understood that when the cross-sectional area of ​​a single water hole 12 is too large, foreign matter in the washing chamber may easily pass through the water hole 12 into the water diversion chamber 101 in the impeller 100 or further pass through the water diversion chamber 101 and the water replenishment hole 22 into the drainage chamber below the impeller 100, and foreign matter is inconvenient to clean and is easily clogged. Therefore, in this embodiment, the filter is covered at the water hole 12 to prevent foreign matter from entering the impeller 100 or the space below the impeller 100.

[0085] The washing machine according to the second embodiment of the present invention comprises the pulsator 100 according to the first embodiment of the present invention.

[0086] Other structures of the washing machine according to the embodiment of the present invention, such as the inner drum and the outer drum, and the operation thereof are well known to those skilled in the art and will not be described in detail here.

[0087] According to the washing machine of the embodiment of the present invention, the overall performance of the washing machine is improved by providing the pulsator 100 of the first embodiment.

[0088] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0089] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0090] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0091] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0092] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A pulsator, characterized in that: include: a first pulsator, the first pulsator having a first disk surface for moving water flow, the first disk surface being formed as a smooth and continuous annular curved surface, and the first pulsator having a water hole vertically penetrating the first disk surface; a second impeller, wherein the first impeller is connected to the second impeller and is covered above the second impeller, the second impeller having a second disk surface and a water-repelling rib connected to the second disk surface and protruding toward the first disk surface, and a water replenishment hole vertically penetrating the second disk surface is formed on the second impeller; The first disk surface is formed as an inclined surface extending upward from inside to outside in the radial direction; At least a portion of the first disk surface is formed as a water-repelling portion extending in an undulating manner in a circumferential direction, and the water-repelling portion includes a wave crest protruding upward on the first impeller.

2. The impeller according to claim 1, characterized in that: The first impeller and the second impeller are connected by welding, bolting or snapping.

3. The impeller according to claim 1, characterized in that: The climbing angles of the two side surfaces of the wave crest located in the circumferential direction of the first impeller relative to the horizontal plane are not greater than 30°.

4. The impeller according to claim 1, characterized in that: The water-repelling part and the water-repelling rib are vertically opposite to each other.

5. The impeller according to claim 1, characterized in that: The first impeller includes a column portion, a disk portion and a flange portion which are arranged in sequence from the inside to the outside in the radial direction, the column portion is in the shape of a hollow column with an open bottom and a closed top, the disk portion is in the shape of a ring extending circumferentially around the column portion and extending radially outward, the flange portion is connected to the radially outer end of the disk portion and extends radially outward and downwardly, wherein the upper surface of the disk body portion forms the first disk surface.

6. The impeller according to claim 1, characterized in that: The second impeller includes a central portion and a flat portion, wherein the central portion is formed into a columnar shape extending along the axial direction of the second impeller, the flat portion is connected to the radially outer side of the central portion and extends horizontally outward along the radial direction of the second impeller, and the water-repellent rib is formed on the flat portion.

7. The impeller according to any one of claims 1 to 6, characterized in that: The total flow cross-sectional area of ​​the water holes is not less than 50% of the total area of ​​the first disk surface.

8. The impeller according to any one of claims 1 to 6, characterized in that: The impeller further includes a filter screen, which is connected to the first impeller and covers the water passing hole.

9. The impeller according to any one of claims 1 to 6, characterized in that: The water-repelling ribs include a plurality of water-repelling ribs, which extend in the radial direction of the second impeller and are evenly spaced in the circumferential direction of the second impeller, and the second disk surface is connected between two adjacent water-repelling ribs.

10. The impeller according to claim 9, characterized in that: The climbing angle of the two side surfaces of the water-repelling rib in the circumferential direction of the second impeller relative to the second disk surface is not less than 45°.

11. The impeller according to claim 9, characterized in that: The water replenishment holes are formed on the second disk surface, and the total flow cross-sectional area of ​​the water replenishment holes is not less than 40% of the total area of ​​the second disk surface.

12. A washing machine, characterized in that: Comprising a pulsator according to any one of claims 1-11.

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