A washing drum assembly and a laundry treating apparatus
By setting a flow guiding structure on the bottom surface of the washing drum, the centripetal force is used to push the water along a spiral path to the drain outlet, which solves the problem of long dehydration time, improves dehydration efficiency, and enhances the strength of the washing drum.
Patent Information
- Application Number
- CN202210130204.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-02-11
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2042-02-11
AI Technical Summary
During the dehydration process of clothing processing equipment, water is difficult to enter the drain outlet, resulting in long dehydration time and poor effect.
A flow guide structure is set in the center area of the inner bottom surface of the washing drum. The flow guide structure extends radially outward in a planar spiral shape from the drain outlet. The flow guide structure rotates synchronously with the washing drum, and uses the centripetal force to push the water along the spiral path to the drain outlet, reducing the dehydration time and enhancing the strength of the washing drum.
It improves dehydration efficiency, reduces dehydration time, and enhances the strength of the washing drum through the design of the flow guiding structure, preventing water from moving radially outward under centrifugal force and ensuring that the water flows to the drain outlet faster and more concentratedly.
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Figure CN116623397B_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of clothes treatment, and in particular to a washing drum assembly and clothes treatment equipment. BACKGROUND
[0002] In the related art, clothes treatment equipment such as a washing machine includes a washing drum, a center of an inner bottom surface of the washing drum is formed with a drain port, when dehydration is needed, the washing drum rotates to dehydrate clothes, and the water drained out is discharged to the outside of the clothes treatment equipment through the drain port. During the dehydration process, the water is prone to moving to the radial outside of the inner bottom surface under the action of centrifugal force, which causes the water to be difficult to enter the drain port, resulting in a long dehydration time and poor dehydration effect. SUMMARY
[0003] Therefore, the present application aims to provide a washing drum assembly and clothes treatment equipment facilitating dehydration.
[0004] To achieve the above-mentioned purpose, the present application provides a washing drum assembly, comprising:
[0005] a washing drum, a center area of an inner bottom surface of the washing drum is formed with a drain port;
[0006] a flow guide structure arranged on the inner bottom surface and protruding from the inner bottom surface, the flow guide structure extends in a planar spiral from the drain port to the radial outside of the inner bottom surface.
[0007] In some embodiments, an end of the flow guide structure away from the drain port extends to an edge of the inner bottom surface along the radial outside.
[0008] In some embodiments, the flow guide structure spirally extends one turn around the center of the inner bottom surface.
[0009] In some embodiments, a projection shape of the flow guide structure on the inner bottom surface is in the shape of an Archimedes spiral.
[0010] In some embodiments, the flow guide structure spirally extends multiple turns around the center of the inner bottom surface.
[0011] In some embodiments, a height of the flow guide structure is between 10mm and 25mm.
[0012] In some embodiments, the flow guide structure is formed with a flow guide channel extending thereon, an end of the flow guide channel close to the drain port is a water outlet, and an end of the flow guide channel away from the drain port is a water inlet.
[0013] In some embodiments, the washing drum assembly comprises a drain shell which is arranged around the drain port to form a drain cavity, and the flow guide structure is connected to the drain shell near the end of the drain port so that the water outlet is in communication with the drain cavity.
[0014] In some embodiments, the number of flow guide structures is multiple, and the multiple flow guide structures are arranged along the circumference of the inner bottom surface, and the water outlets of the multiple flow guide structures are distributed along the circumference of the drain shell.
[0015] In some embodiments, the flow guide structure is a strip structure which stands on the inner bottom surface.
[0016] In some embodiments, the diameter of the washing drum gradually increases from top to bottom.
[0017] The present application also provides a laundry treating apparatus comprising the washing drum assembly as described above.
[0018] In some embodiments, the laundry treating apparatus comprises a pulsator which is located in the washing drum and is rotatably arranged above the flow guide structure.
[0019] In some embodiments, the laundry treating apparatus comprises a control device and a motor which is electrically connected to the control device, the motor is drivingly connected to the washing drum, and the control device is capable of controlling the motor to increase the rotating speed at a preset acceleration, and the motor drives the washing drum to rotate synchronously.
[0020] The washing drum assembly provided by the embodiments of the present application has the following advantages. On the one hand, during the dehydration, the washing drum rotates in the first direction which is the same as the rotation direction of the flow guide structure, and the flow guide structure is arranged on the inner bottom surface, so that the flow guide structure and the washing drum rotate in the first direction at the same rotating speed. Since the water in the washing drum moves under the action of the washing drum, the movement speed of the water lags behind the rotating speed of the washing drum during the process of increasing the rotating speed of the washing drum, that is, there is a speed difference between the water and the washing drum. In this way, the flow guide structure which protrudes from the inner bottom surface contacts the water and generates a force, and the centripetal component of the flow guide structure can push the water to flow along the planar spiral path formed by the flow guide structure to the drain port, so as to weaken the movement of the water to the radial outside of the inner bottom surface under the action of the centrifugal force of the washing drum, and make the water flow to the drain port more quickly and more concentratedly, thereby reducing the dehydration time and improving the dehydration effect. On the other hand, the flow guide structure protrudes from the inner bottom surface, so that the flow guide structure has a certain height to constrain the water without increasing the thickness of the bottom plate of the washing drum. In addition, the flow guide structure which protrudes from the inner bottom surface can also increase the strength of the washing drum and disperse the water pressure acting on the inner bottom surface. BRIEF DESCRIPTION OF DRAWINGS
[0021] Figure 1 FIG. 1 is a structural schematic view of a drum assembly in an embodiment of the present application;
[0022] Figure 2 for Figure 1 A half-sectional schematic diagram of the cylindrical assembly shown;
[0023] Figure 3 This is a schematic diagram of the flow guiding structure and drainage shell in one embodiment of this application;
[0024] Figure 4 for Figure 3 A schematic diagram of the structure shown from another perspective;
[0025] Figure 5 This is a schematic diagram of the structure of the cylindrical assembly in another embodiment of this application;
[0026] Figure 6 This is a schematic diagram of the structure of the cylindrical assembly in another embodiment of this application;
[0027] Figure 7 for Figure 6 A schematic diagram of the structure from another perspective.
[0028] Explanation of reference numerals in the attached figures
[0029] Washing drum 100; bottom plate 101; inner bottom surface 110; drain outlet 110a;
[0030] Flow guiding structure 200; Flow guiding channel 200a; Outlet 200a'; Inlet 200a”;
[0031] Drainage shell 300; Detailed Implementation
[0032] It should be noted that, unless otherwise specified, the embodiments and technical features in the embodiments of this application can be combined with each other, and the detailed descriptions in the specific implementation should be understood as explanations of the purpose of this application and should not be regarded as undue limitations on this application.
[0033] In the description of the embodiments of this application, the orientation or positional relationship of "upper", "lower", "top", "bottom", "radial", "inner", and "outer" are as follows: Figure 2 The orientations or positional relationships shown are intended only for the convenience of describing this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.
[0034] This application provides a washing drum assembly; please refer to [link / reference]. Figures 1 to 6The washing drum assembly comprises a washing drum 100 and a flow guide structure 200. A center area of an inner bottom surface 110 of the washing drum 100 is formed with a drain port 110a. The flow guide structure 200 is arranged on the inner bottom surface 110 and protrudes from the inner bottom surface 110. The flow guide structure 200 extends in a planar spiral from the drain port 110a to a radial outer side of the inner bottom surface 110.
[0035] The washing drum assembly provided by the embodiment of the present application has the following advantages. On one hand, during dehydration, the washing drum 100 rotates in a first direction which is the same as the rotation direction of the flow guide structure 200. The flow guide structure 200 is arranged on the inner bottom surface 110, so that the flow guide structure 200 and the washing drum 100 rotate in the first direction at the same rotational speed. Since the water in the washing drum 100 moves under the action of the washing drum 100, during the process of increasing the rotational speed of the washing drum, the movement speed of the water lags behind the washing drum 100, that is, there is a speed difference between the water and the washing drum 100. In this way, the flow guide structure 200 protruding from the inner bottom surface 110 contacts the water and generates a force. The centripetal component of the flow guide structure 200 can push the water to flow along the planar spiral path formed by the flow guide structure 200 to the drain port 110a, weaken the movement of the water to the radial outer side of the inner bottom surface 110 under the action of the centrifugal force of the washing drum 100, and make the water flow to the drain port 110a more quickly and more concentratedly, so that the dehydration time is shortened and the dehydration effect is good. On the other hand, the flow guide structure 200 protrudes from the inner bottom surface 110, so that the flow guide structure 200 has a certain height to constrain the water without increasing the thickness of the bottom plate 101 of the washing drum 100. The flow guide structure 200 protruding from the inner bottom surface 110 can also increase the strength of the washing drum 100 and disperse the water pressure acting on the inner bottom surface 110.
[0036] It can be understood that, referring to Figure 1 and Figure 6 , the flow guide structure 200 extends in a planar spiral from the drain port 110a to the radial outer side of the inner bottom surface 110, that is, one end of the flow guide structure 200 is close to the drain port 110a, and the other end of the flow guide structure 200 rotates outwardly and expands to the radial outer side. The projection shape of the flow guide structure 200 on the inner bottom surface 110 is approximately a spiral line shape which rotates outwardly and expands to the radial outer side from the drain port 110a.
[0037] It should be noted that the center area refers to an area with a center on the center of the rotational axis C of the washing drum 100 on the inner bottom surface 110 and a set distance as a radius. The specific size of the set distance can be determined by a person skilled in the art according to the radius of the inner bottom surface 110. For example, in some embodiments, the inner bottom surface 110 of the washing drum 100 is approximately circular, and the set distance can be one third of the radius of the inner bottom surface 110.
[0038] The shape of the drain outlet 110a is not limited, and includes, but is not limited to, circular, elliptical, or polygonal shapes. The drain outlet 110a can be located within the central area. For an example, please refer to [link to example]. Figure 6 The drain outlet 110a is circular in shape, and the center of the drain outlet 110a coincides with the center of the rotation axis of the washing drum 100 on the inner bottom surface 110.
[0039] As an example, in one embodiment, please refer to Figure 1 , Figures 4 to 6 In the top view of the washing drum assembly, the direction of rotation of the flow guide structure 200 is clockwise, so the first direction of the washing drum 100 during spin-drying is also clockwise. During spin-drying, both the washing drum 100 and the flow guide structure 200 rotate clockwise at the same speed.
[0040] It should be noted that "below" refers to the direction towards the ground, "above" refers to the opposite direction towards the ground, "top" is the same as "above," and "bottom" is the same as "below."
[0041] In another embodiment, in a top view of the washing drum assembly, the direction of rotation of the flow guiding structure 200 is counterclockwise, and therefore the first direction is also counterclockwise. During spin-drying, both the washing drum 100 and the flow guiding structure 200 rotate counterclockwise at the same speed.
[0042] In some embodiments, this application provides a garment processing device, which includes the washing drum assembly from any embodiment of this application. The type of garment processing device is not limited; for example, it includes, but is not limited to, washing equipment or spin-drying equipment.
[0043] In some embodiments, please refer to Figure 2 The washing drum 100 has a single-tub structure. That is, the washing drum 100 does not have a water-holding tub of approximately the same height as it. The washing drum 100 can hold water and clothes. For example, the drain outlet 110a can be opened or closed; it is closed during the washing cycle and opened during the spin-drying cycle. This not only reduces the need for a water-holding tub, saving costs, but also prevents dirt and grime from accumulating in the space between the washing drum 100 and the water-holding tub, avoiding secondary contamination.
[0044] The drain outlet 110a can be opened or closed in any way. For example, the drain outlet 110a can be closed or opened by a solenoid valve or by a clutch.
[0045] The laundry treating apparatus is a washing machine. In one embodiment, the laundry treating apparatus comprises a pulsator located in the washing tub 100, and the pulsator is rotatably arranged above the flow guide structure 200. Specifically, the pulsator has a gap between the radially outer edge of the pulsator and the inner circumferential surface of the washing tub 100, so that the washing tub 100 does not interfere with the rotation of the pulsator. During washing, the drain port 110a is closed, and the washing tub 100 can contain water and laundry, and the pulsator rotates to agitate the laundry and water, so that the water and laundry interact to wash the laundry. During dehydration, the drain port 110a is opened, and the pulsator and the washing tub 100 rotate synchronously to dehydrate the laundry, and the water is drained through the drain port 110a. Since the pulsator is located above the flow guide structure 200, the flow guide structure 200 can avoid contacting the laundry, so that the flow guide structure 200 does not damage the laundry.
[0046] It can be understood that during dehydration, the water can enter the inner bottom surface 110 through the gap between the radially outer edge of the pulsator and the inner circumferential surface of the washing tub 100. In some embodiments, a flow hole can also be formed on the pulsator, and during dehydration, the water can enter the inner bottom surface 110 through the flow hole.
[0047] In one embodiment, the laundry treating apparatus comprises a control device and a motor electrically connected to the control device, and the motor is drivingly connected to the washing tub 100. The control device can control the motor to increase the rotational speed at a preset acceleration, and the motor drives the washing tub 100 to rotate synchronously. The motor can drive the washing tub 100 to rotate. During dehydration, the control device controls the motor to increase the rotational speed at a preset acceleration, and the motor drives the washing tub 100 to rotate synchronously, so that the washing tub 100 also increases the rotational speed at a preset acceleration. The washing tub 100 is in an acceleration stage in which the rotational speed of the washing tub 100 is constantly accelerated. The movement speed of the water lags behind, and the movement speed of the water is less than the rotational speed of the washing tub 100. Therefore, during the acceleration stage, a speed difference is maintained between the washing tub 100 and the water. With the washing tub 100 as a reference, the water and the washing tub 100 have relative motion, i.e., the water moves in a second direction opposite to the first direction relative to the washing tub 100, so that the water can flow to the drain port 110a more quickly under the guidance of the flow guide structure 200.
[0048] The preset acceleration can be a constant value or a variable acceleration. The size of the preset acceleration is not limited, and in the embodiments of the present application, the preset acceleration can be set according to actual needs.
[0049] For example, in one embodiment, please refer to Figure 1 , Figure 1As a top view of the washing drum assembly, if the first direction is clockwise, then the second direction is counterclockwise, and the flow guide structure 200 extends spirally in the clockwise direction. During the acceleration stage of the dehydration process, the rotation speed of the washing drum 100 is constantly accelerated, and the water liquid moves relative to the washing drum 100 in the counterclockwise direction, while the flow guide structure 200 extends spirally in the clockwise direction. The flow guide structure 200 is in contact with the water liquid and generates a force. The flow guide structure 200 can limit and constrain the movement of the water liquid and weaken the centrifugal force generated by the washing drum 100 during clockwise rotation. The water liquid moves to the radial inside under the guidance of the flow guide structure 200 so as to flow to the drain port 110a more quickly.
[0050] In another embodiment, as a top view of the washing drum assembly, if the first direction is counterclockwise, then the second direction is clockwise, and the flow guide structure 200 extends spirally in the counterclockwise direction. During the acceleration stage of the dehydration process, the rotation speed of the washing drum 100 is constantly accelerated, and the water liquid moves relative to the washing drum 100 in the clockwise direction, while the flow guide structure 200 extends spirally in the counterclockwise direction. The flow guide structure 200 is in contact with the water liquid and generates a force. The flow guide structure 200 can limit and constrain the movement of the water liquid and weaken the centrifugal force generated by the washing drum 100 during clockwise rotation. The water liquid moves to the radial inside under the guidance of the flow guide structure 200 so as to flow to the drain port 110a more quickly.
[0051] In an embodiment, referring to Figures 2 to 4 , the flow guide structure 200 is formed with a flow guide channel 200a extending therealong. The end of the flow guide channel 200a close to the drain port 110a is the water outlet 200a', and the end of the flow guide channel 200a away from the drain port 110a is the water inlet 200a". The flow guide channel 200a extends along the flow guide structure 200, that is, the flow guide channel 200a extends spirally in a plane. The projection shape of the flow guide channel 200a on the inner bottom surface 110 is substantially a spiral line shape that rotates and expands outwardly from the drain port 110a to the radial outside. The circumferential direction of the flow guide channel 200a is closed. The water liquid enters the flow guide channel 200a through the water inlet 200a" and then flows out from the water outlet 200a' to the drain port 110a. The water liquid is limited by the wall of the flow guide channel 200a around the water liquid to flow in the flow guide channel 200a, so as to more accurately guide the water liquid to the drain port 110a.
[0052] In an embodiment, referring to Figures 1 to 4The washing drum assembly comprises a drain shell 300 covering the periphery of the drain port 110a to form a drain cavity, and the end of the flow guide structure 200 close to the drain port 110a is connected to the drain shell 300 so that the water outlet 200a' communicates with the drain cavity. The drain cavity communicates with the drain port 110a and the water outlet 200a'. The drain cavity functions to slow down the water liquid, which is appropriately reduced in speed in the drain cavity, to a certain extent, avoiding the mismatch between the flow rate of the water liquid in the flow guide channel 200a and the drainage speed of the drain port 110a, and the water liquid is accumulated at the drain port 110a to affect the drainage efficiency.
[0053] In an embodiment, the drain shell 300 and the flow guide structure 200 are integrally formed. In this way, the assembly steps can be reduced, and the assembly process can be saved.
[0054] In an embodiment, referring to Figure 5 , the number of the flow guide structures 200 is multiple, and the multiple flow guide structures 200 are arranged along the circumference of the inner bottom surface 110, and the water outlets 200a' of the multiple flow guide structures 200 are distributed along the circumference of the drain shell 300. In this way, the flow cross section of a single flow guide channel 200a can be smaller, so that the water liquid can flow quickly in the flow guide channel 200a, and the water liquid distributed in different areas of the inner bottom surface 110 can enter the corresponding flow guide channels 200a from different water inlets 200a" respectively, so that the water can be supplied to different areas at the same time, the water supply amount can be larger, and the drainage efficiency can be improved.
[0055] In an embodiment, referring to Figure 6 and Figure 7 , the flow guide structure 200 is a strip structure erected on the inner bottom surface 110. In this way, the side surface of the strip structure contacts and limits the water liquid, and the water liquid flows to the drain port 110a under the guidance of the side surface of the strip structure.
[0056] In an embodiment, referring to Figure 1 , Figure 5 and Figure 6 , the end of the flow guide structure 200 away from the drain port 110a extends to the edge of the inner bottom surface 110 on the radially outer side. The water liquid on the inner bottom surface 110 is easily gathered at the edge of the inner bottom surface 110 on the radially outer side under the action of the centrifugal force, so that the end of the flow guide structure 200 away from the drain port 110a can collect the water liquid to guide the collected water liquid into the drain port 110a, and the effect of collecting the water liquid is better.
[0057] In an embodiment, referring to Figure 1 , Figure 5 and Figure 6The flow guiding structure 200 extends spirally around the center of the inner bottom surface 110 in a single turn. In other words, the end of the flow guiding structure 200 near the drain outlet 110a is the starting point of the moving point, and the moving point rotates radially outward 360° around the center of the inner bottom surface 110 to the other end of the flow guiding structure 200 away from the drain outlet 110a as the ending point. In this way, the path of water flow along the flow guiding structure 200 is shorter, and it can flow to the drain outlet 110a more quickly.
[0058] The specific type of spiral is not limited; for example, in one embodiment, please refer to [reference needed]. Figure 1 The projection shape of the flow guiding structure 200 on the inner bottom surface 110 is an Archimedean spiral. The Archimedean spiral flow guiding structure 200 has the characteristics of simple structure and continuous and uniform flow guiding.
[0059] In one embodiment, the flow guiding structure 200 and the washing drum 100 are manufactured independently. For example, the flow guiding structure 200 can be fixed to the inner bottom surface 110 by welding or other means. In this way, the manufacturing difficulty of both the flow guiding structure 200 and the washing drum 100 is relatively low, and assembly is relatively easy. Thus, on the one hand, the production difficulty of the washing drum 100 and the flow guiding structure 200 is low. On the other hand, it can avoid excessively increasing the overall thickness of the base plate 101, which would increase the overall weight of the washing drum 100 and the installation space it occupies.
[0060] In one embodiment, the flow guiding structure 200 extends spirally multiple times around the center of the inner bottom surface 110. In other words, the end of the flow guiding structure 200 near the drain outlet 110a is the starting point of the moving point, and the moving point spirals radially outward around the center of the inner bottom surface 110 by 720° or more to the other end of the flow guiding structure 200 away from the drain outlet 110a. The multiple spirals can be two or more. For example, the moving point spirals radially outward around the axis of the inner bottom surface 110 by 720° or 1080°, etc., to the other end of the flow guiding structure 200 away from the drain outlet 110a, that is, the flow guiding structure 200 spirals around the axis of the inner bottom surface 110 two or more times. In this way, the water can flow more smoothly towards the drain outlet 110a.
[0061] Since the flow guiding structure 200 needs to block water, taking a strip-shaped flow guiding structure 200 as an example, if the height of the strip structure is too low, water may easily overflow the top surface of the strip structure, resulting in poor flow guiding effect. For example, in one embodiment, the height H of the flow guiding structure 200 is between 10mm and 25mm. For instance, the height H of the flow guiding structure 200 can be 10mm, 11mm, 11.5mm, 15mm, 17mm, 18mm, 20mm, 22mm, 23mm, 24mm, or 25mm, etc. See some embodiments for details. Figure 2The flow guide structure 200 is formed with a flow guide channel 200a, and the height H of the flow guide channel 200a is approximately between 10mm and 25mm. In this way, the height of the flow cross section of the flow guide structure 200 is moderate, which not only facilitates the rapid flow of water, but also avoids the flow guide structure 200 excessively occupying the space in the height direction of the washing drum 100, affecting the washing space in the washing drum 100. In other embodiments, please refer to Figure 6 The flow guide structure 200 is a strip structure erected on the inner bottom surface 110, and the height H of the strip structure is approximately between 10mm and 25mm. In this way, the height of the strip structure is moderate, which not only avoids the flow guide structure 200 excessively occupying the space in the height direction of the washing drum 100, but also more effectively prevents the water from climbing over the top surface of the strip structure, ensuring the flow guide effect.
[0062] In the related art, in the dehydration process, the water is easy to climb up along the inner circumferential surface of the washing drum 100 under the action of the centrifugal force upwardly divided, affecting the dehydration effect. In an embodiment, please refer to Figure 2 The diameter of the washing drum 100 gradually increases from top to bottom. That is, the washing drum 100 is approximately in the shape of a truncated cone with a small top and a large bottom. On the one hand, the area of the inner circumferential surface of the lower part of the washing drum 100 is large, the water is more dispersedly distributed on the inner circumferential surface of the lower part of the washing drum 100, the contact area of the water with the inner circumferential surface of the lower part of the washing drum 100 is larger, the kinetic energy of the water is gradually consumed into internal energy, reducing the influence of the centrifugal force upwardly divided, so that the water flows downwardly under the action of gravity and the like. On the other hand, the inclination of the inner circumferential surface of the washing drum 100 is utilized to guide the water on the inner circumferential surface of the washing drum 100 to flow downwardly, so that the water is collected on the inner bottom surface 110, improving the drainage efficiency.
[0063] The various embodiments / implementation modes provided in the present application can be combined with each other without contradiction.
[0064] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Those skilled in the art can make various modifications and changes to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1.A laundry treating apparatus, characterized by, The washing drum assembly comprises a washing drum and a pulsator. The washing drum comprises a drain port formed in a central region of an inner bottom surface of the washing drum. A flow guide structure is arranged on the inner bottom surface and protrudes from the inner bottom surface. The flow guide structure extends in a planar spiral from the drain port to a radially outer side of the inner bottom surface. A projection shape of the flow guide structure on the inner bottom surface is in the shape of an Archimedes spiral. 2.The laundry treating apparatus of claim 1, wherein The pulsator is located in the washing drum. 3.The laundry treating apparatus according to claim 1, wherein, The pulsator is rotatably arranged above the flow guide structure. 4.The laundry treating apparatus according to claim 1, wherein, An edge of a radially outer side of the pulsator has a gap with an inner circumferential surface of the washing drum. 5.The laundry treating apparatus according to claim 1, wherein, An end of the flow guide structure away from the drain port extends to an edge of the inner bottom surface along a radially outer side. 6.The laundry treating apparatus according to any one of claims 1 through 5, wherein, The flow guide structure spirally extends one turn around the center of the inner bottom surface. 7.The laundry treating apparatus according to claim 6, wherein, The flow guide structure spirally extends multiple turns around the center of the inner bottom surface. 8.The laundry treating apparatus of claim 7, wherein, A height of the flow guide structure is between 10 mm and 25 mm. 9.The laundry treating apparatus according to any one of claims 1 through 5, wherein, The flow guide structure is internally formed with a flow guide channel extending along the flow guide structure. 10.The laundry treating apparatus according to any one of claims 1 through 5, wherein, An end of the flow guide channel close to the drain port is a water outlet port. 11.The laundry treating apparatus according to claim 1, wherein, An end of the flow guide channel away from the drain port is a water inlet port. The washing drum assembly comprises a drain shell. The drain shell is arranged around the drain port to form a drain cavity. The end of the flow guide structure close to the drain port is connected to the drain shell. The water outlet port is connected to the drain cavity. The number of the flow guide structures is multiple. The multiple flow guide structures are arranged along a circumferential direction of the inner bottom surface. The water outlet ports of the multiple flow guide structures are distributed along a circumferential direction of the drain shell. The flow guide structure is a strip structure erected on the inner bottom surface. The diameter of the washing drum gradually increases from top to bottom. The laundry treatment apparatus comprises a control device and a motor electrically connected to the control device. The motor is drivingly connected to the washing drum. The control device can control the motor to increase the rotational speed at a preset acceleration. The motor drives the washing drum to rotate synchronously.
Citation Information
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