Rotating drum assembly of washing machine and washing machine

Abstract

The present invention discloses a rotary drum assembly of a washing machine and a washing machine. The rotary drum assembly comprises: a rotary drum; a water guide cover, wherein the water guide cover or the water guide cover and the rotary drum together define a drainage channel, wherein the water inlet of the drainage channel is located above the water outlet of the drainage channel, and the liquid rising in the rotary drum due to the centrifugal force enters the drainage channel through the water inlet and is discharged through the water outlet, and in the flow direction of the liquid in the drainage channel, the flow area of ​​the drainage channel at the upstream position is smaller than the flow area of ​​the drainage channel at the downstream position. According to the rotary drum assembly of the washing machine of the embodiment of the present invention, by setting the flow area of ​​the drainage channel at the upstream position to be smaller than the flow area of ​​the drainage channel at the downstream position, it is ensured that water can be discharged in time during the drainage process, and the eccentricity of the rotary drum caused by water accumulation above the rotary drum is prevented, and the rotary drum is prevented from hitting the washing machine box during operation, thereby ensuring the safety of dehydration.

Description

Technical Field

[0001] The present invention relates to the technical field of washing machines, and in particular to a rotating barrel assembly of a washing machine and a washing machine. Background Art

[0002] With the continuous development of washing machine technology, washing machines have become increasingly large-capacity. While washing machines are gradually becoming large-capacity, the overall size of the washing machine will inevitably increase. Therefore, it is necessary to provide a small-volume, large-capacity washing machine. At the same time, in the existing washing machine, water is distributed in the rotating barrel and the water tub during washing, that is, there is water distributed between the water tub and the rotating barrel, and the water consumption is large, resulting in a waste of water resources. Dirt in the existing washing machine is easily retained between the water tub and the rotating barrel, thereby breeding bacteria. Moreover, because there is water distributed between the water tub and the rotating barrel, the amount of detergent used is also large, resulting in a waste of detergent resources, which is not conducive to cost saving.

[0003] To this end, the related art proposes a washing machine that omits the water tub and only retains the rotating tub, in which a water guide shield is set on the inner circumferential wall of the rotating tub. During the dehydration process, the water in the rotating tub first climbs upward under the action of centrifugal force, and then falls and is discharged through the water guide shield under the action of gravity. However, during the drainage process, the water cannot be discharged in time, causing water to accumulate above the rotating tub, resulting in an eccentricity problem in the rotating tub, which in severe cases will hit the washing machine body, affecting the user experience. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one object of the present invention is to provide a rotating tub assembly of a washing machine, in which water in the rotating tub assembly can be discharged in time to avoid eccentricity during dehydration, and provide a better user experience.

[0005] The present invention also provides a washing machine having the rotating tub assembly.

[0006] According to a first aspect of the present invention, a rotating drum assembly of a washing machine includes: a rotating drum; a water guide cover, wherein the water guide cover is arranged in the rotating drum, and the water guide cover or the water guide cover and the rotating drum jointly define a drainage channel, wherein a water inlet of the drainage channel is located above a water outlet of the drainage channel, wherein liquid that rises in the rotating drum due to centrifugal force enters the drainage channel through the water inlet and is discharged through the water outlet, and in the flow direction of the liquid in the drainage channel, a flow area of ​​the drainage channel at an upstream position is smaller than a flow area of ​​the drainage channel at a downstream position.

[0007] According to the rotating drum assembly of the washing machine in the embodiment of the present invention, the water in the rotating drum first climbs upwards under the action of centrifugal force, then enters the drainage channel from the water inlet, and falls and is discharged under the action of gravity. By setting the flow area of ​​the drainage channel at the upstream position to be smaller than the flow area at the downstream position, it is ensured that water can be discharged in time during the drainage process, and the eccentricity of the rotating drum due to water accumulation above the rotating drum is prevented, and the rotating drum is prevented from hitting the washing machine body during operation, thereby ensuring the safety of dehydration and improving the user experience.

[0008] According to an embodiment of the present invention, the flow area of ​​the drainage channel gradually increases along the flow direction of the liquid in the drainage channel.

[0009] According to an embodiment of the present invention, the cross-sectional shape of the drainage channel is triangular.

[0010] According to an embodiment of the present invention, the inner diameter of the rotating barrel gradually increases from bottom to top.

[0011] According to an embodiment of the present invention, a water guide structure protruding toward the outside of the rotating barrel is formed on the peripheral wall of the rotating barrel, and the water guide cover is arranged at the water guide structure.

[0012] In some embodiments, the water guiding structure is provided with a first water guiding section, a middle water guiding section and a second water guiding section in sequence along the circumference of the rotating barrel, and both ends of the middle water guiding section are transitionally connected to the first water guiding section and the second water guiding section respectively.

[0013] In some embodiments, the outer contour line of the cross section of the middle water-conducting section forms an arc shape with the center of the rotating barrel as the center of the circle.

[0014] In some examples, the inner diameter of any location of the intermediate water-conducting section is not smaller than the inner diameter of a portion of the intermediate water-conducting section located above the location.

[0015] In some embodiments, the ratio of the length of the outer contour line of the cross section of the middle water-conducting section to the length of the outer contour line of the cross section of the water-conducting structure gradually decreases from top to bottom in the up-down direction.

[0016] In some embodiments, the cross-sectional outer contour line of the first water guiding segment and / or the second water guiding segment is formed in an oblique line shape that gradually extends toward the center of the rotating barrel in a direction away from the middle water guiding segment.

[0017] In some embodiments, the first water guiding segment and the second water guiding segment are symmetrically arranged about a center line of the middle water guiding segment.

[0018] According to a further embodiment of the present invention, the water inlet is provided on the water guide cover, and the water outlet is provided on the water guide structure and / or the bottom wall of the rotating barrel.

[0019] Optionally, there are multiple water-conducting structures and the multiple water-conducting structures are arranged at intervals along the circumference of the rotating barrel, and there are multiple water-conducting covers and the multiple water-conducting covers are respectively arranged on the multiple water-conducting structures in a one-to-one correspondence.

[0020] A washing machine according to an embodiment of a second aspect of the present invention comprises: a housing; and a rotating tub assembly of the washing machine according to the above embodiment, wherein the rotating tub assembly is rotatably disposed in the housing.

[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] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0023] Figure 1 is a schematic structural diagram of a washing machine according to an embodiment of the present invention;

[0024] Figure 2 is a perspective view of a rotary tub assembly of a washing machine according to one embodiment of the present invention;

[0025] Figure 3 is a front view of a rotary tub assembly of a washing machine according to another embodiment of the present invention;

[0026] Figure 4 is a cross-sectional view of a rotary tub assembly of a washing machine according to an embodiment of the present invention;

[0027] Figure 5 is along Figure 3 Sectional view along line AA;

[0028] Figure 6 yes Figure 5 An enlarged view of the D portion shown in;

[0029] Figure 7 is along Figure 3 Sectional view along the midline BB;

[0030] Figure 8 is along Figure 3 Sectional view along the CC line.

[0031] Reference numerals:

[0032] Washing machine 1.

[0033] Box body 100, rotating barrel assembly 200,

[0034] Rotating barrel 210, water outlet 211, water guide cover 220, water inlet 221, guide part 230, drainage channel 240, water guide structure 260, first water guide section 261, second water guide section 262, middle water guide section 263, balance ring 270,

[0035] Pulsator 300,

[0036] Water receiving tray 400, water receiving tank 410,

[0037] Drive unit 500, drive shaft assembly 501, support plate 502,

[0038] The shock absorbing assembly 600 is supported. DETAILED DESCRIPTION

[0039] 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 only used to explain the present invention, and cannot be understood as limiting the present invention.

[0040] Reference below Figure 1-Figure 8 A rotary tub assembly 200 of a washing machine and a washing machine 1 according to an embodiment of the present invention are described.

[0041] like Figures 3 to 8 As shown, the rotating drum assembly 200 of the washing machine according to an embodiment of the present invention includes a rotating drum 210 and a water guide cover 220, the water guide cover 220 is arranged in the rotating drum 210, the water guide cover 220 itself defines a drainage channel 240, or the water guide cover 220 and the rotating drum 210 jointly define the drainage channel 240, and the water inlet 221 of the drainage channel 240 is located above the water outlet 211 of the drainage channel 240.

[0042] By connecting the water guide cover 220 to the rotating drum 210, there is no need to set an additional structure on the cabinet 100 of the washing machine 1 or to set the cabinet 100 into a double-layer structure of inside and outside to achieve water conduction during the dehydration process. In this way, the material selection of the cabinet 100 is no longer limited. For example, sheet metal and other materials can be used, thereby greatly improving the appearance.

[0043] During dehydration, the liquid that rises due to the centrifugal force in the rotating barrel 210 enters the drainage channel 240 through the water inlet 221, and then is discharged through the water outlet 211 under the action of gravity. In the flow direction of the liquid in the drainage channel 240, the flow area of ​​the drainage channel 240 at the upstream position is smaller than the flow area of ​​the drainage channel 240 at the downstream position.

[0044] According to the rotating drum assembly 200 of the washing machine according to the embodiment of the present invention, the water in the rotating drum 210 first climbs upward under the action of centrifugal force, then enters the drainage channel 240 from the water inlet 221, and falls and is discharged under the action of gravity. By setting the flow area of ​​the drainage channel 240 at the upstream position to be smaller than the flow area at the downstream position, it is ensured that water can be discharged in time during the drainage process, and the eccentricity of the rotating drum 210 caused by water accumulation above the rotating drum 210 is prevented, and the rotating drum 210 is prevented from hitting the body of the washing machine during operation, thereby ensuring safety during dehydration and improving user experience.

[0045] According to one embodiment of the present invention, the flow area of ​​the drainage channel 240 gradually increases in the flow direction of the liquid in the drainage channel 240. For example, the drainage channel 240 is axially extending along the rotating barrel 210 (eg, Figure 4 The drainage channel 240 extends in the up and down directions as shown, and the flow area of ​​the drainage channel 240 gradually increases from top to bottom, thereby ensuring that water can be discharged smoothly, preventing water accumulation in the upper part of the rotating barrel 210 and causing the rotating barrel 210 to be eccentric, thereby ensuring safety during dehydration.

[0046] Optionally, the cross-sectional shape of the drainage channel 240 is triangular. Figure 5-Figure 8 As shown, the water guide cover 220 forms an arc-shaped cover plate that bends in a direction away from the center of the rotating tub 210 , and a triangle with an arc-shaped side is defined between the water guide cover 220 and the rotating tub 210 , so the structure is stable and reliable.

[0047] According to one embodiment of the present invention, Figure 2 and Figure 3 As shown, the inner diameter of the rotating tub 210 gradually increases from bottom to top. That is, the rotating tub 210 can be configured as an inverted truncated cone with a larger top and a smaller bottom, which can facilitate water to climb upward and enter the drainage channel 240, thereby improving the dehydration effect.

[0048] like Figure 2-Figure 4 As shown, a water guide structure 260 is formed on the peripheral wall of the rotating tub 210 . The water guide structure 260 is protruded toward the outside of the rotating tub 210 , and the water guide cover 220 is disposed at the water guide structure 260 .

[0049] Therefore, by providing an inverted truncated cone-shaped rotating barrel 210 and a water-guiding structure 260 protruding from the peripheral wall of the rotating barrel 210, the influence of the centrifugal force of water during the climbing and falling processes can be taken into account, thereby improving the dehydration effect. By providing a reinforcing structure on the water-guiding structure 260, the strength of the overall structure is further improved, making it less likely to deform, thereby ensuring the stability of the dehydration process and improving the dehydration effect.

[0050] Among them, the water-guiding structure 260 has a reinforcing structure. For example, the lower surface of the water-guiding structure 260 is formed into a triangle, which constitutes at least a part of the reinforcing structure. The stability of the triangle is utilized to improve the structural strength of the water-guiding structure 260, ensure the stability of the overall structure during the dehydration process, and improve the dehydration effect.

[0051] In some embodiments, the water guiding structure 260 includes a first water guiding section 261, an intermediate water guiding section 263 and a second water guiding section 262. The first water guiding section 261, the intermediate water guiding section 263 and the second water guiding section 262 are arranged in sequence along the circumference of the rotating barrel 210. The two ends of the intermediate water guiding section 263 are transitionally connected to the first water guiding section 261 and the second water guiding section 262 respectively. By forming three water guiding sections in the water guiding structure 260, the structural strength of the water guiding structure 260 is enhanced by the water guiding sections, making it stable and not easy to deform.

[0052] In some embodiments, the outer contour line of the cross section of the middle water guiding section 263 forms an arc shape, and the arc is centered at the center of the rotating barrel 210, so that the outer contour line of the cross section of the middle water guiding section 263 forms a smooth arc segment, and the radius of the middle water guiding section 263 is slightly larger than the radius of the rotating barrel 210 at the cross section, which makes it easier for water to flow to the middle water guiding section 263 under the action of centrifugal force, thereby improving the dehydration effect; it also facilitates the manufacturing and forming of the middle water guiding section 263, thereby simplifying the manufacturing process.

[0053] In some examples, the inner diameter of any location of the middle water-conducting section 263 is not smaller than the inner diameter of the portion of the middle water-conducting section 263 located above the location.

[0054] For example, the inner diameters of the middle water guiding section 263 in the up and down directions are consistent, that is, the inner diameter of any point of the middle water guiding section 263 is equal to the inner diameter of the uppermost part of the middle water guiding section 263. In the longitudinal cross-sectional view of the water guiding structure 260, a vertical section is formed on the inner side of the middle water guiding section 263, and a part of the drainage channel 240 forms a vertical cavity. That is, on the basis of ensuring the water guiding effect and structural strength of the drainage channel 240, the structure of the middle water guiding section 263 is further simplified to facilitate its manufacturing and forming.

[0055] For another example, the inner diameter of the middle water guiding section 263 gradually increases from top to bottom, that is, the inner diameter of any point of the middle water guiding section 263 is larger than the inner diameter of the part of the middle water guiding section 263 located above that point. In the longitudinal cross-sectional view of the water guiding structure 260, an inclined section gradually inclined outward is formed on the inner side of the middle water guiding section 263. As a result, the centrifugal force at the bottom of the drainage channel 240 is greater than the centrifugal force at the top, so that the water entering the drainage channel 240 can more easily reach the bottom and be discharged to the outside, further improving the dehydration effect.

[0056] In some embodiments, the ratio of the length of the outer contour line of the cross section of the middle water-conducting section 263 to the length of the outer contour line of the cross section of the water-conducting structure 260 gradually decreases from top to bottom in the up-down direction.

[0057] In other words, at the upper end of the water guiding structure 260, the length of the outer contour line of the cross section of the middle water guiding section 263 is the largest; at the lower end of the water guiding structure 260, the length of the middle water guiding section 263 is close to zero, and at this position, a triangle is formed between the first water guiding section 261, the second water guiding section 262 and the water guiding cover 220, that is, at the water outlet 211, the cross section of the drainage channel 240 forms a triangle, thereby improving the structural strength of the water guiding structure 260; and the cross-sectional area of ​​the drainage channel 240 here is larger than the cross-sectional area of ​​the upper part thereof, thereby ensuring that the water entering the drainage channel 240 can flow out in time, thereby ensuring the dehydration effect.

[0058] In some embodiments, the cross-sectional outer contour of the first water guiding segment 261 and / or the second water guiding segment 262 forms an oblique line, and the oblique line gradually extends toward the center of the rotating tub 210 in a direction away from the middle water guiding segment 263 .

[0059] In some embodiments, the first water guiding section 261 and the second water guiding section 262 are symmetrically arranged about the center line of the middle water guiding section 263, that is, the water guiding structure 260 is symmetrically arranged along the center line of the middle water guiding section 263, thereby further simplifying the manufacturing process of the water guiding structure 260 while ensuring the dehydration effect, reducing the manufacturing difficulty and improving the stability of the structure.

[0060] According to a further embodiment of the present invention, Figure 4 As shown, the water inlet 221 is arranged on the water guide cover 220, and the water outlet 211 is arranged on the water guide structure 260 and / or the bottom wall of the rotating barrel 210, that is, the water outlet 211 can be arranged on the water guide structure 260, or on the bottom wall of the rotating barrel 210, or the water outlet 211 is arranged on the water guide structure 260 and the rotating barrel 210.

[0061] By arranging the water outlet 211 on the water guide structure 260 , the water guide cover 220 covers the water outlet 211 , and the lower end of the water guide cover 220 is only connected to the water guide structure 260 , which is beneficial to the sealing of the water guide cover 220 .

[0062] Of course, the water outlet 211 in the present invention can also be set on the bottom wall of the rotating barrel 210, and the water guide cover 220 is set to cover the water outlet 211, which is beneficial to improving the dehydration efficiency during dehydration, has a good dehydration effect, and can effectively reduce the splashing of water from the water outlet 211; when the water outlet 211 is set on the water guide structure 260 and the bottom wall of the rotating barrel 210, it is beneficial to the sealing of the water guide cover 220, and is also beneficial to improving the dehydration efficiency during dehydration, and can effectively prevent water from splashing out of the water outlet 211.

[0063] Furthermore, the water inlet 221 is provided at the upper part of the water guide cover 220, and the water outlet 211 is provided at the lower part of the water guide structure 260. It can be understood here that the upper part of the water guide cover 220 refers to the part above the center of the water guide cover 220 in the up-down direction, and the lower part of the water guide structure 260 refers to the part below the center of the water guide structure 260 in the up-down direction. Thus, during dehydration, the rotating barrel 210 rotates, and the water in the rotating barrel 210 rises under the action of centrifugal force. The water inlet 221 located at the upper part of the water guide cover 220 can better collect the rising water. This part of the water enters the water guide cover 220 from the water inlet 221, and flows to the water outlet 211 below under the guidance of the water guide cover 220, thereby further improving the dehydration efficiency and the dehydration effect.

[0064] Furthermore, the water inlet 221 is arranged at the upper end of the water guide cover 220 to further facilitate the collection of liquid that rises to the upper end of the rotating barrel 210 under the action of centrifugal force in the rotating barrel 210. The water outlet 211 is arranged in the water guide structure 260 and is adjacent to the bottom wall of the rotating barrel 210. The water outlet 211 is spaced a predetermined distance from the bottom wall of the rotating barrel 210, thereby facilitating the sealing of the water guide cover 220.

[0065] In order to improve the dehydration effect of the rotating barrel 210, a plurality of water guide structures 260 are provided, and the plurality of water guide structures 260 are arranged at intervals along the circumference of the rotating barrel 210. There are a plurality of water guide covers 220, and the plurality of water guide covers 220 are arranged one by one at the plurality of water guide structures 260.

[0066] like Figure 5-Figure 8 As shown, in this embodiment, there are two water guiding structures 260 , which are arranged opposite to each other in the radial direction of the rotating barrel 210 , and there are two water guiding covers 220 , which are arranged at the two water guiding structures 260 in a one-to-one correspondence.

[0067] like Figure 2As shown, according to one embodiment of the present invention, the peripheral wall of the rotating barrel 210 is also formed with a guide portion 230 protruding toward the outer side of the rotating barrel 210 and located above the water guiding structure 260. The guide portion 230 is connected to the water guiding structure 260 and the guide portion 230 is connected to the water inlet 221. The liquid that rises in the rotating barrel 210 due to the centrifugal force can pass through the water inlet 221 and flow into the drainage channel 240 and / or the water guiding structure 260 through the guide portion 230.

[0068] In some examples, the projection length of the guide portion 230 in the circumferential direction of the rotating barrel 210 is greater than the projection length of the water guiding structure 260 in the circumferential direction of the rotating barrel 210, that is, in the circumferential direction, the guide portion 230 extends a certain distance to both sides of the water guiding structure 260, and the guide portion 230 is located above the water guiding structure 260 and the guide portion 230 and the water guiding structure 260 are connected in a T shape. Because the guide portion 230 is protruding toward the outside of the rotating barrel 210 and the guide portion 230 extends a certain distance to both sides of the water guiding structure 260 in the circumferential direction, the volume of the cavity in the guide portion 230 is increased, so that the liquid that rises in the rotating barrel 210 due to the centrifugal force can easily enter the guide portion 230 instead of flowing into the rotating barrel 210 again from the water inlet 221, thereby saving dehydration time and improving dehydration efficiency, while reducing the moisture content of the washed clothes and improving the dehydration effect.

[0069] In some specific examples, the guide portion 230 extends to both sides of the water guiding structure 260 at the same distance, so that the structure is beautiful and the manufacturing process is simple; the guide portion 230 is smoothly connected to the top of the water guiding structure 260, and the guide portion 230 and the water guiding structure 260 can be an integrally molded structure, which is easy to manufacture and makes the guide portion 230 and the water guiding structure 260 transition evenly, so that the liquid entering the guide portion 230 can flow to the drainage channel 240 and / or the water guiding structure 260 in a timely manner.

[0070] Among them, the contour line in the up-down direction at the guide part 230 of the rotating barrel 210 can form a vertical line extending in the up-down direction, or it can form an inclined straight line extending gradually outward from top to bottom relative to the up-down direction. The contour line is smoothly connected with the contour line in the up-down direction at the water guiding structure 260 of the rotating barrel 210, that is, the longitudinal extension direction of the guide part 230 is the same as the longitudinal extension direction of the water guiding structure 260.

[0071] Because the rotating barrel 210 is constructed in the shape of an inverted truncated cone that is larger at the top and smaller at the bottom, the contour line in the up-down direction at the water guide structure 260 of the rotating barrel 210 can form a vertical line extending in the up-down direction, or can form an inclined straight line extending gradually outward from top to bottom relative to the up-down direction. Although the guide part 230 extends a certain distance to both sides of the water guide structure 260 in the circumferential direction, the internal space of the water guide structure 260 gradually increases from top to bottom, which can ensure that during dehydration, the liquid that rises in the rotating barrel 210 due to the centrifugal force flows smoothly from the water inlet 221 and flows out from the water outlet 211, thereby improving the dehydration efficiency and reducing the moisture content of the washed clothes, while saving dehydration time.

[0072] like Figure 1 As shown, the washing machine 1 according to the embodiment of the present invention comprises a housing 100 and a rotating tub assembly 200 of the washing machine according to the above embodiment, and the rotating tub assembly 200 is rotatably disposed in the housing 100. It can be understood by those skilled in the art that the rotating tub assembly 200 for the washing machine implemented according to the present invention can be used for a single-tub washing machine 1 or a double-tub washing machine 1, and the present invention does not limit this.

[0073] The washing machine 1 according to the embodiment of the present invention adopts a single-barrel structure, that is, only a rotating barrel 210 is provided without a water holding barrel, so that water is in the rotating barrel 210 during washing, which saves more water; by further providing a water guide cover 220 on the inner circumferential wall surface of the rotating barrel 210 and defining a drainage channel 240, the water in the rotating barrel 210 rises under the action of centrifugal force during dehydration, and enters the drainage channel 240 from the water inlet 221, and flows to the water outlet 211 under the guidance of the drainage channel 240, and is discharged through the water outlet 211. Therefore, while eliminating the water holding barrel to simplify the structure, increase the capacity, reduce the growth of dirt and bacteria, and save water, the dehydration effect can be improved at the same time.

[0074] In some specific examples of the present invention, Figure 1 As shown, the washing machine 1 includes a housing 100 , a rotating tub assembly 200 , a pulsator 300 , a water receiving tray 400 , a driving unit 500 and a supporting shock absorbing assembly 600 .

[0075] The impeller 300 is rotatably disposed in the rotating tub 210. The water receiving tray 400 is disposed in the housing 100 and at least a portion thereof is located below the rotating tub 210. The water receiving tray 400 is used to support the rotating tub 210, which may be directly supported or indirectly supported.

[0076] In this embodiment, the driving unit 500 is installed on the water receiving tray 400, for example, on the lower surface of the water receiving tray 400, and is used to drive at least one of the rotating tub 210 and the pulsator 300 to rotate. The driving unit 500 is provided with a driving shaft assembly 501 that penetrates the water receiving tray 400 and is connected to the water receiving tray 400, and a support plate connected to the driving shaft assembly 501 is provided between the water receiving tray 400 and the rotating tub 210, and the support plate is fixedly connected to the rotating tub 210.

[0077] The drainage channel 240 guides the liquid thrown out by the rotating barrel 210 to the water receiving tray 400 through the water outlet 211. The water receiving tray 400 may have a water receiving tank 410 and a drainage port is provided at the lowest point of the water receiving tank 410 for drainage. The water receiving tray 400 may not have a drainage port, but a conduit or the like is used to lead out the water in the water receiving tank 410. The support and shock absorbing assembly 600 is installed in the box body 100 and connected to the water receiving tray 400.

[0078] Therefore, by setting the water receiving tray 400, not only the liquid discharged from the drainage channel 240 can be contained, but also the driving unit 500 and the supporting shock absorbing assembly 600 can be installed on the water receiving tray 400 to realize the functions of supporting the driving unit 500 and supporting the rotating barrel 210.

[0079] Furthermore, the washing machine 1 further includes a balancing ring 270 for maintaining the balance of the rotating tub 210 during rotation. The balancing ring 270 is disposed at the upper end of the rotating tub 210 and connected to the upper end of the rotating tub 210. The upper end of the water guide cover 220 is adjacent to the balancing ring 270, and the upper end of the water guide cover 220 is spaced apart from the balancing ring 270. The gap facilitates the installation of the water guide cover 220. The water inlet 221 is disposed at the upper end of the water guide cover 220. In this way, the water inlet 221 is located below the balancing ring 270 and is spaced apart from the balancing ring 270 by a certain distance. When the rotating tub 210 rotates, it is convenient for the water in the rotating tub 210 to enter the water inlet 221 under the action of centrifugal force, and then enter the drainage channel 240. The upper end of the water guide cover 220 can also be connected to the balance ring 270, so that the balance ring 270 and the upper end of the water guide cover 220 define a water inlet 221. When the rotating barrel 210 rotates, the water in the rotating barrel 210 can enter the water inlet 221 under the action of centrifugal force, and then enter the drainage channel 240.

[0080] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", "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 a limitation on the present invention.

[0081] Other structures and operations of the washing machine 1 according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail here.

[0082] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" 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 representation of the above terms does 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.

[0083] 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 rotary drum assembly of a washing machine, characterized in that: include: Rotating barrel; A water guide cover is disposed in the rotating barrel, the water guide cover or the water guide cover and the rotating barrel together define a drainage channel, the drainage channel extends along the axial direction of the rotating barrel, and the water inlet of the drainage channel is located above the water outlet of the drainage channel, Wherein, the liquid rising in the rotating barrel due to the centrifugal force enters the drainage channel through the water inlet and is discharged through the water outlet, and in the flow direction of the liquid in the drainage channel, the flow area of ​​the drainage channel at the upstream position is smaller than the flow area of ​​the drainage channel at the downstream position; The peripheral wall of the rotating barrel is formed with a water guide structure protruding toward the outer side of the rotating barrel, and the water guide cover is arranged at the water guide structure; The water guiding structure comprises a middle water guiding section, and the ratio of the length of the outer contour line of the cross section of the middle water guiding section to the length of the outer contour line of the cross section of the water guiding structure gradually decreases from top to bottom in the up-down direction.

2. The rotary drum assembly of the washing machine according to claim 1, characterized in that: The flow area of ​​the drainage channel gradually increases along the flow direction of the liquid in the drainage channel.

3. The rotary drum assembly of the washing machine according to claim 1, characterized in that: The cross-sectional shape of the drainage channel is a triangle.

4. The rotary drum assembly of the washing machine according to claim 1, characterized in that: The inner diameter of the rotating barrel gradually increases from bottom to top.

5. The rotary drum assembly of a washing machine according to claim 1, characterized in that: The water guiding structure is provided with a first water guiding section, a middle water guiding section and a second water guiding section in sequence along the circumference of the rotating barrel, and two ends of the middle water guiding section are transitionally connected to the first water guiding section and the second water guiding section respectively.

6. The rotary drum assembly of the washing machine according to claim 5, characterized in that: The cross-sectional outer contour line of the middle water-conducting section forms an arc shape with the center of the rotating barrel as the center of the circle.

7. The rotary drum assembly of the washing machine according to claim 6, characterized in that: The inner diameter of any location of the intermediate water-conducting section is not less than the inner diameter of the portion of the intermediate water-conducting section located above the location.

8. The rotary drum assembly of the washing machine according to claim 5, characterized in that: The cross-sectional outer contour line of the first water guiding section and / or the second water guiding section is formed in an oblique line shape which gradually extends toward the center of the rotating tub in a direction away from the middle water guiding section.

9. The rotary drum assembly of a washing machine according to claim 5, characterized in that: The first water guiding section and the second water guiding section are symmetrically arranged about a center line of the middle water guiding section.

10. The rotary drum assembly of a washing machine according to claim 1, characterized in that: The water inlet is arranged on the water guide cover, and the water outlet is arranged on the water guide structure and / or the bottom wall of the rotating barrel.

11. The rotary drum assembly of a washing machine according to any one of claims 1 to 10, characterized in that: There are a plurality of water guide structures and the plurality of water guide structures are arranged at intervals along the circumference of the rotating barrel. There are a plurality of water guide covers and the plurality of water guide covers are arranged on the plurality of water guide structures in a one-to-one correspondence.

12. A washing machine, characterized in that: include: Box; as well as According to the rotating tub assembly of the washing machine according to any one of claims 1 to 11, the rotating tub assembly is rotatably arranged in the housing.

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