Washing machine

Abstract

The embodiment of the utility model belongs to the technical field of clothes cleaning, and provides a washing machine which comprises a box body, an outer barrel and a roller. The roller comprises a roller opening, a roller bottom, a roller opening connecting section and a roller body section. At least part of the cylinder opening connecting section is of a conical structure. And at least part of the barrel section is of a conical structure. In the cylinder opening connecting section and the cylinder body section, the inner diameter close to the front side face of the box body is smaller than the inner diameter close to the rear side face. The outer wall and the extension line of the cylinder section form a first conical generatrix of a conical structure; the first conical generatrix and the central axis of the roller form a rotation axis of the conical structure, the angle between the first conical generatrix and the rotation axis is defined as a second included angle alpha2, and alpha2 meets 0 degree lt; [alpha] 2lt; 3 degrees. According to the washing machine, noise generated by collision of the drum and the outer drum is reduced, the volume of the washing cavity of the drum is increased, the service life of the washing machine is prolonged, and user experience is improved.

Description

[0001] This application claims the priority of a Chinese patent application titled "Washing Machine" with the application number 202420351673.0 and filed with the Chinese Patent Office on February 26, 2024. The entire content thereof is incorporated herein by reference. Technical Field

[0002] This application relates to the technical field of clothing cleaning, and particularly to a washing machine. Background Art

[0003] A washing machine is a commonly used household appliance mainly for cleaning clothes.

[0004] The washing machine mainly includes an outer tub and a drum disposed inside the outer tub. The washing machine mainly drives the drum to rotate through a driving member, so that the clothes are rubbed, kneaded and flushed under the combined action of the washing liquid and water, thereby achieving the purpose of cleaning the clothes.

[0005] In the prior art, the larger the size of the drum, the larger the washing capacity. Since the drum generates vibration when rotating, there needs to be a certain safety gap between the end of the drum far from the driving member and the outer tub. As the diameter of the drum increases, the diameter of the outer tub also increases. To ensure the necessary safety gap, the overall size of the washing machine will also increase. Therefore, how to increase the washing capacity while keeping the overall volume of the washing machine unchanged or meeting the industry-standardized external dimensions is a difficult problem in the industry.

[0006] Therefore, there is an urgent need for a washing machine that can increase the washing capacity while keeping the overall volume of the washing machine unchanged. Summary of the Utility Model

[0007] This utility model solves at least one of the technical problems in the related art to a certain extent.

[0008] This application aims to provide a washing machine that reduces the noise generated during the use of the washing machine, improves the user experience, and increases the washing capacity of the washing machine.

[0009] An embodiment of this application provides a washing machine, including a cabinet, an outer tub and a drum. The cabinet has a placement space, and the outer surface of the cabinet has a front side and a rear side. The outer tub is disposed in the placement space and has an outer tub cavity. The drum is disposed in the outer tub cavity and is rotatably disposed relative to the outer tub.

[0010] The drum includes a drum opening, a drum bottom, a drum mouth connection section, and a drum body section. The drum opening is located at one end of the drum close to the front side. The drum bottom is located at one end of the drum close to the rear side. The drum mouth connection section is connected to one end of the drum body section close to the front side. In the drum mouth connection section and the drum body section, the inner diameter close to the front side is smaller than the inner diameter close to the rear side; wherein, at least part of the drum body section is a conical structure; the first conical generatrix of the conical structure is formed along the outer wall of the drum body section and its extension line; and the central axis of the drum constitutes the rotation axis of the conical structure. The angle between the generatrix and the rotation axis is defined as the second included angle α2, and α2 satisfies 0° < α2 < 3°.

[0011] The above technical solution has the following advantages or effects: On the one hand, compared with the prior art, by providing a conical drum body section, the outer diameter of the main drum section close to the drum bottom is made larger, thereby increasing the capacity of the drum. Since the size of one end of the drum body section close to the drum opening is smaller than the size of one end of the drum body section close to the drum bottom, and to ensure that there is sufficient clearance between one end of the drum body section close to the drum opening and the outer drum, the possibility of collision between at least one end of the drum body section close to the drum opening and the outer drum is reduced.

[0012] On the other hand, compared with the prior art, in order to increase the capacity of the drum, currently, the diameter of the drum is usually directly increased. Directly increasing the diameter of the drum will cause an increase in the vibration energy and vibration amplitude during the rotation of the drum. Therefore, the increase in vibration energy will increase the vibration amplitude, and the increase in vibration amplitude will cause the rotation vibration noise of the drum. Also, without increasing the overall size of the outer drum, the clearance between the drum and the outer drum is relatively reduced. At the same time, the increase in vibration amplitude will also increase the possibility of collision between the drum and the outer drum. In this solution, the drum body section of the main part of the drum is designed as a conical structure. During the rolling rotation of the drum, part of the rotation energy is transferred from the front side to the rear side, relatively reducing the vibration energy and vibration amplitude on the front side. However, the rear side of the drum is relatively fixedly connected to the outer drum. Even if the vibration energy increases, the vibration amplitude will not increase too much. Even if the clearance at the rear side is relatively small, the possibility of collision between the drum and the outer drum will not increase. Secondly, the vibration amplitude on the front side is also relatively reduced, and at the same time, the vibration noise will also be reduced.

[0013] In addition, the design of the conical drum helps with the guidance and discharge of water. Especially during the dehydration process, water is more easily thrown out of the drum under the action of centrifugal force, improving the drainage and dehydration efficiency.

[0014] At the same time, the angle between the conical generatrix of the conical structure of the drum body section and its rotation axis is defined as the second included angle α2, which is limited to the range of 0° < α2 < 3°. In this way, on the basis of reducing the collision between the part of the drum body section close to the front end and the outer drum, the volume of the washing cavity of the drum is ensured to be as large as possible, so that the clothes can be fully rubbed, improving the washing effect of the washing machine.

[0015] In contrast, when α2 is greater than 3°, the volume of the drum washing chamber will be reduced due to the excessive size of α2, and the clothes will easily accumulate on the rear side of the drum during rotation, which will cause the clothes to fail to fully roll and rub in the washing chamber, reducing the washing effect. When α2 is equal to 0, the distance between the part of the drum section near the front side and the outer drum is equal to the distance between the part of the drum section near the rear side and the outer drum, so the probability of the part of the drum section near the front side colliding with the outer drum cannot be reduced, and the collision between the drum section and the outer drum will generate noise.

[0016] In some embodiments of the present application, the barrel mouth connecting section is at least partially a conical structure; a second conical generatrix of the conical structure is formed along the outer wall and extension line of the barrel mouth connecting section; the angle between the second conical generatrix and the rotation axis is defined as a first angle α1, wherein α1 and α2 satisfy α1>α2.

[0017] The above technical scheme has the following advantages or effects: First, in the washing machine provided in the embodiment of the present application, compared with the traditional washing machine, the diameters of the drum and the outer drum are relatively increased, and the gap between the drum and the outer drum is relatively narrowed. When the drum rotates, since the barrel mouth connecting section of the drum is farther away from the bottom of the drum than the barrel section of the drum, under the condition of approximately the same centrifugal force, the elastic deformation generated by the barrel mouth connecting section of the drum is more likely to be greater than the elastic deformation generated by the barrel section of the drum, and the barrel mouth connecting section of the drum is more likely to collide with the outer drum. Therefore, sufficient gap needs to be reserved between the barrel mouth connecting section of the drum and the outer drum. In this scheme, α1>α2 is defined, which can increase the gap between the barrel mouth connecting section and the outer drum while ensuring that the volume of the washing chamber is not reduced as much as possible, reduce the probability of collision between the barrel mouth connecting section of the drum and the outer drum when the drum rotates, improve the stability of use of the outer drum and the drum, and improve the use of the outer drum and the drum. life; secondly, α1>α2, that is, the taper of the barrel mouth connecting section is greater than the taper of the barrel body section, that is, the rotation radius of the barrel mouth connecting section is smaller than the rotation radius of the barrel body section, that is, when the drum rotates, the centrifugal force of the barrel mouth connecting section is smaller than the centrifugal force of the barrel body section. Due to process limitations and the placement of clothes during washing, the centrifugal force applied to the drum cannot be completely balanced when the drum rotates. When the drum rotates, the barrel mouth connecting section is subjected to a smaller centrifugal force, which can make the barrel mouth connecting section of the drum produce a smaller elastic deformation, and relatively reduce the vibration amplitude of the barrel mouth connecting section of the drum, so as to reduce the collision probability between the barrel mouth connecting section and the outer drum; thirdly, since the barrel body section is the main area forming the washing chamber, α1>α2 is defined in this scheme, which is conducive to ensuring the washing chamber capacity of the drum, and increasing the washing chamber of the drum as much as possible while limiting the collision probability between the barrel mouth connecting section and the outer drum, to ensure that the drum has a large enough washing chamber to allow the clothes to fully rub and tumble.

[0018] Relatively, when α1 < α2, on the one hand, the gap between the part of the barrel mouth connecting section near the front side and the outer barrel is smaller than the gap between the part of the barrel mouth connecting section near the barrel body section and the outer barrel. The gap between the barrel mouth connecting section and the outer barrel decreases, increasing the possibility of collision between the barrel mouth connecting section and the outer barrel. On the other hand, on the basis that structures such as the door seal near the front side remain unchanged, if α1 < α2, the connection between the barrel mouth connecting section and the barrel body section is concave towards the drum washing cavity, which is not conducive to ensuring the washing cavity capacity and is not conducive to the full friction and flipping of clothes in the washing cavity.

[0019] In some embodiments of the present application, α1 is defined as 3° < α1 < 6°. In this way, the washing machine can reduce the collision between the barrel mouth connecting section and the part of the outer barrel near the front side. At the same time, it can reduce the manufacturing difficulty of the barrel mouth connecting section, reduce the uneven load distribution in the drum, and reduce the noise of the washing machine.

[0020] Relatively, when α1 is less than 3°, it means that the taper of the barrel mouth connecting section is very small. A smaller taper requires high manufacturing precision for the barrel mouth connecting section, which will increase the manufacturing difficulty of the barrel mouth connecting section. In addition, manufacturing a barrel mouth connecting section with a smaller taper not only requires high-precision processing equipment, but also a smaller taper may cause greater stress during the processing of the barrel mouth connecting section, making it prone to deformation. When α1 is greater than 6°, the larger taper will cause stress concentration in certain areas of the barrel mouth connecting section, increasing the risk of fatigue and fracture of the barrel mouth connecting section, and may lead to a decrease in the structural strength and stability of the drum.

[0021] In some embodiments of the present application, there is a spacing D1 between the outer wall surface of one end of the barrel mouth connecting section near the front side and the inner wall surface of the outer barrel; there is a spacing D2 between the outer wall surface of the connection between the barrel mouth connecting section and the barrel body section and the inner wall surface of the outer barrel; there is a spacing D3 between the outer wall surface of one end of the barrel body section near the rear side and the inner wall surface of the outer barrel; and D1, D2, and D3 satisfy: D3 < D2 < D1.

[0022] The above technical solution has the following advantages or effects: Usually, during the rotation of the drum, the rotation energy and vibration amplitude from the front side to the rear side are gradually reduced. In this solution, the gradually reducing trend of D1, D2 and D3 is defined. The larger distance D1 between the barrel mouth connecting section and the outer barrel reduces the collision and friction between the drum and the outer barrel near the front side, improves the use stability of the outer barrel and the drum, and improves the service life of the outer barrel and the drum. The outer wall surface of the end of the barrel section near the rear side has a smaller distance D3 from the inner wall surface of the outer barrel. In this way, the barrel section can not only reduce the collision with the outer barrel, but also ensure that the drum has a large enough washing cavity, ensuring that the clothes in the washing cavity can fully rotate and rub, and improve the washing effect of the washing machine. Setting the size of D2 between D1 and D3 is conducive to the transition between the barrel mouth connecting section and the barrel section, and avoids the formation of a large corner between the barrel mouth connecting section and the barrel section, which affects the structural stability of the barrel.

[0023] In some embodiments of the present application, along the direction from the drum opening to the drum bottom, the distance between at least a portion of the outer wall surface of the drum mouth connecting section and the inner wall surface of the outer drum gradually decreases.

[0024] The above technical solution has the following advantages or effects: the gradually decreasing spacing realizes a smooth transition of the drum mouth connecting section, helps to balance the load distribution in the drum, and reduces the vibration and noise of the washing machine when it rotates at high speed.

[0025] In some embodiments of the present application, along the direction from the drum opening to the drum bottom, the distance between at least a portion of the outer wall surface of the drum section and the inner wall surface of the outer drum gradually decreases.

[0026] The above technical solution has the following advantages or effects: by gradually reducing the distance between at least a part of the outer wall surface of the drum segment and the inner wall surface of the outer drum, the movement of the clothes in the drum is smoother, the friction and collision between the clothes and the inner wall of the drum are reduced, thereby reducing the wear rate of the clothes. This gradually decreasing distance helps to balance the load distribution in the drum, reduce the vibration and noise of the washing machine when rotating at high speed, and improve the stability and service life of the washing machine.

[0027] In some embodiments of the present application, at least one of the following three limitations is satisfied: D1 satisfies: 15 mm <D1<20mm;D2满足:12mm<D2<15mm;D3满足:6mm<D3<9mm。

[0028] The above technical solution has the following advantages or effects: During the rotation of the drum, the rotational energy and vibration amplitude gradually decrease from the front side to the rear side. In this solution, the decreasing trends of D1, D2, and D3 are defined, and D1 satisfies 15 mm < D1 < 20 mm. This increases the distance between the barrel mouth connection section and the outer barrel, avoiding too small a distance between the barrel mouth connection section and the outer barrel, reducing the collision between the drum and the outer barrel, thereby reducing noise. At the same time, it avoids too large a distance between the barrel mouth connection section and the outer barrel, improves the utilization rate of the internal space of the outer barrel, increases the effective volume of the washing cavity, and thus improves the washing effect.

[0029] Moreover, D2 satisfies 12 mm < D2 < 15 mm. This increases the distance between the connection between the barrel mouth connection section and the barrel body section and the outer barrel, avoiding too small a distance between the drum and the outer barrel, reducing the collision between the drum and the outer barrel, thereby reducing noise. At the same time, it also avoids too large a distance between the drum and the outer barrel, improves the utilization rate of the internal space of the outer barrel, increases the effective volume of the washing cavity, and thus improves the washing effect.

[0030] Furthermore, D3 satisfies 6 mm < D3 < 9 mm. This increases the distance between the barrel body section and the outer barrel, avoiding too small a distance between the barrel body section and the outer barrel, reducing the collision between the drum and the outer barrel, thereby reducing noise. At the same time, it avoids too large a distance between the barrel body section and the outer barrel, improves the utilization rate of the internal space of the outer barrel, increases the effective volume of the washing cavity, and thus improves the washing effect.

[0031] In some embodiments of the present application, the outer barrel includes an outer barrel mouth, an outer barrel bottom, and a protruding structure; the outer barrel mouth is located at one end of the outer barrel close to the front side, and is disposed opposite to and communicated with the drum opening; the outer barrel bottom is located at one end of the outer barrel close to the rear side; along the direction from the outer barrel mouth to the outer barrel bottom, the protruding structure is at least formed in the middle section of the outer barrel, and the protruding structure protrudes towards the direction where the drum is located.

[0032] The barrel body section includes a recessed structure; along the direction from the drum opening to the drum bottom, the recessed structure is at least formed in the middle section of the drum, and the recessed structure is concave towards the direction away from the outer barrel.

[0033] The above technical solution has the following advantages or effects: The protruding and recessed structures can absorb and disperse vibrations and impact forces to a certain extent, further reducing the noise generated by the washing machine. In addition, during the use of the washing machine, the recessed structure is used to avoid the protruding structure, preventing the two from colliding during the rotation of the drum, thereby reducing noise and vibration and improving the sound insulation performance of the washing machine.

[0034] In some embodiments of the present application, the outer barrel includes a first outer barrel section and a second outer barrel section. The first outer barrel section is located on the side of the outer barrel close to the outer barrel mouth. The second outer barrel section is located on the side of the outer barrel close to the outer barrel bottom and is butted against the first outer barrel section.

[0035] The butt joint position of the first outer cylinder section and the second outer cylinder section is located in the middle section of the outer cylinder and forms a convex structure.

[0036] The above technical solution has the following advantages or effects: By setting the outer cylinder as the first outer cylinder section and the second outer cylinder section, the first outer cylinder section and the second outer cylinder section can be modularly produced, and the first outer cylinder section and the second outer cylinder section can be independently manufactured and inspected to simplify the manufacturing process, reduce the manufacturing difficulty and cost. By setting the butt joint position in the middle section of the outer cylinder, the stress distribution of the outer cylinder can be made more uniform, the stress concentration phenomenon can be reduced, and the overall structural strength and stability of the outer cylinder can be enhanced.

[0037] In some embodiments of the present application, the first outer cylinder section includes a first butt joint end. The first butt joint end is located on the side of the first outer cylinder section close to the second outer cylinder section. The second outer cylinder section includes a second butt joint end. The second butt joint end is located on the side of the second outer cylinder section close to the first outer cylinder section. At least part of the first butt joint end is sleeved on the outer periphery of the second butt joint end. At least part of the second butt joint end protrudes towards the direction where the drum is located and forms a convex structure.

[0038] The above technical solution has the following advantages or effects: The first butt joint end is sleeved on the outer periphery of the second butt joint end to form an interlocking structure, which enhances the connection strength and stability between the first outer cylinder section and the second outer cylinder section, and prevents the first outer cylinder section and the second outer cylinder section from loosening or displacing during the washing and dehydration processes.

[0039] In some embodiments of the present application, the convex structure extends circumferentially around the outer cylinder; the concave structure extends circumferentially around the drum.

[0040] The first butt joint end is provided with a first connecting member, the second butt joint end is provided with a second connecting member, and the first connecting member and the second connecting member are connected to connect the first outer cylinder section and the second outer cylinder section. There is a spacing D5 between the convex structure and the concave structure, and D5 satisfies: 9mm < D5 < 12mm.

[0041] The above technical solution has the following advantages or effects: It reduces the contact and friction between the convex structure and the concave structure during operation. At the same time, the appropriate spacing between the convex structure and the concave structure can absorb and disperse vibrations to a certain extent, reduce the noise and vibration during the operation of the washing machine, and improve the user experience.

[0042] In some embodiments of the present application, the washing machine further includes a bottom connecting section of the cylinder. The bottom connecting section of the cylinder is connected to the side of the cylinder section close to the bottom of the drum. Along the direction from the opening of the drum to the bottom of the drum, the spacing between at least part of the bottom connecting section of the cylinder and the outer cylinder gradually increases.

[0043] The above technical solution has the following advantages or effects: The design in which the distance between at least part of the bottom connecting section of the drum and the outer drum gradually increases provides a buffering effect during the rotation of the drum, reducing the direct contact and collision between the bottom connecting section of the drum and the outer drum, thereby reducing noise and vibration.

[0044] In some embodiments of the present application, there is a distance D4 between one end of the bottom connecting section of the drum close to the bottom of the drum and the outer drum; D3 and D4 satisfy: D4 > D3. D4 satisfies: 10 mm < D4 < 14 mm.

[0045] The above technical solution has the following advantages or effects: For the drum and the outer drum close to the rear side, since there are fewer limiting structures, the impact noise and impact hazards generated by them are relatively small. That is to say, the requirements for the noise or collision generated between the drum and the outer drum close to the rear side of the washing machine are lower than those generated between the drum and the outer drum close to the front side. Therefore, in some embodiments of the present application, D4 is greater than D3. On the basis of ensuring the reduction of the impact between the drum and the outer drum, the volume of the washing cavity is ensured so that the clothes can be fully rubbed and flipped.

[0046] In some embodiments of the present application, along the direction from the opening of the drum to the bottom of the drum, the mouth connecting section has an extension length L1, the barrel section has an extension length L2, and the bottom connecting section has an extension length L3. L1, L2, and L3 satisfy: 0.05 < L1 / L2 < 0.125; 0.05 < L3 / L2 < 0.125.

[0047] The above technical solution has the following advantages or effects: When L1, L2, and L3 satisfy 0.05 < L1 / L2 < 0.125 and 0.05 < L3 / L2 < 0.125, the volume of the washing cavity of the drum washing machine is increased, and at the same time, the resonance caused by the size difference between the mouth connecting section and the barrel section is reduced, and the noise generated by the collision between the drum and the outer drum is reduced. The overall strength and stability of the drum are improved.

[0048] In some embodiments of the present application, at least one of the following three limitations is satisfied: L1 satisfies: 15 mm < L1 < 25 mm; L2 satisfies: 200 mm < L2 < 300 mm; L3 satisfies: 15 mm < L3 < 25 mm.

[0049] In some embodiments of the present application, the washing machine further includes a driving member. The driving member is located in the placement space. The output shaft of the driving member penetrates the outer drum and is connected to the drum. The driving member is used to drive the drum to rotate relative to the outer drum. The mouth connecting section and the barrel section are in smooth transition. The barrel section and the bottom connecting section are in smooth transition.

[0050] The above technical solution has the following advantages or effects: When the driving member is a driving motor, the output shaft of the driving member is directly connected to the drum, which improves the transmission efficiency and reduces the energy loss. The design of smooth transition can help evenly distribute the stress on the drum, reduce stress concentration, and enhance the strength and stability of the overall structure. The design of smooth transition can optimize the water flow path inside the drum, enhance the circulation and penetration ability of the water flow, and improve the washing and rinsing effects.

[0051] In some embodiments of the present application, the washing machine further includes a first flange member. The first flange member is installed at one end of the barrel connection section close to the opening of the drum. The washing machine further includes a second flange member. The second flange member is installed at one end of the bottom connection section close to the bottom of the drum and is connected to the output shaft of the driving member.

[0052] The above technical solution has the following advantages or effects: The first flange member and the second flange provide a firm connection for the first outer barrel section and the second outer barrel section, enhancing the overall structural strength and stability of the drum. The first flange member and the second flange can absorb and disperse vibrations and impact forces to a certain extent, reduce the noise and vibration during the operation of the washing machine, and improve the user experience. The first flange member and the second flange member can provide effective sealing to prevent leakage of water and detergent, and improve the reliability of the washing machine.

[0053] To achieve the above object, the present utility model provides a washing machine, including a cabinet, an outer barrel, a drum, and a driving member. One side of the cabinet is provided with an opening. The outer barrel is arranged inside the cabinet, and the opening of the outer barrel corresponds to the opening of the cabinet. The drum is arranged inside the outer barrel, and the opening of the drum corresponds to the opening of the outer barrel. The driving member is used to drive the drum to rotate.

[0054] Wherein, the drum includes a barrel connection section, a barrel body section, and a connection section connected in sequence; the barrel connection section is close to the opening of the outer barrel;

[0055] The barrel body section is arranged in a conical shape. One end of the barrel body section close to the connection section is the first end, and one end close to the barrel connection section is the second end. The outer diameter of the first end is larger than the outer diameter of the second end.

[0056] The outer diameter of the barrel connection section is not larger than the outer diameter of the second end.

[0057] In the technical solution, through the setting of the barrel body section in the drum, the outer diameter of the side of the drum close to the driving member is made larger, so as to increase the capacity of the drum. And the size of the end of the drum far from the driving member is smaller than the size of the middle part of the drum to ensure that there is enough clearance between the end of the drum far from the driving member and the outer barrel. Therefore, while increasing the capacity of the drum, the outer diameter of the outer barrel does not need to be increased, and the overall size of the whole machine does not need to be increased. The washing capacity is improved on the premise of ensuring that the volume of the whole machine remains unchanged.

[0058] In addition, the present application also provides a washing machine, which includes:

[0059] A box body, with one side of the box body being open;

[0060] An outer cylinder, which is arranged inside the box body, and the opening of the outer cylinder corresponds to the opening of the box body;

[0061] A drum, which is arranged inside the outer cylinder, and the opening of the drum corresponds to the opening of the outer cylinder;

[0062] A driving member, which is used to drive the drum to rotate;

[0063] Wherein, the drum includes a barrel mouth connection section, a barrel body section and a connection section connected in sequence; the barrel mouth connection section is close to the opening of the outer cylinder;

[0064] The barrel body section is arranged in a conical shape. One end of the barrel body section close to the connection section is the first end, and one end close to the barrel mouth connection section is the second end. The outer diameter of the first end is larger than the outer diameter of the second end;

[0065] The outer diameters of both the barrel mouth connection section and the connection section are not larger than the outer diameter of the second end.

[0066] In the technical solution, through the setting of the barrel body section in the drum, the outer diameter of the side of the drum close to the driving member is made larger, so as to increase the capacity of the drum. And the size of the end of the drum far from the driving member is smaller than the size of the middle part of the drum, to ensure that there is enough clearance between the end of the drum far from the driving member and the outer cylinder. Moreover, the outer diameter of the connection section is also smaller, which also ensures that when the drum rotates, the connection section will not interfere with and collide with the outer cylinder. Therefore, while increasing the capacity of the drum, the outer diameter of the outer cylinder does not need to be increased, and the size of the whole machine does not need to be increased. The washing capacity is improved on the premise of ensuring that the volume of the whole machine remains unchanged.

[0067] In some embodiments of the present application, the outer diameters of the barrel mouth connection section and the connection section are the same.

[0068] In the technical solution, through this design, it is convenient for the production and manufacture of the drum. During production, a drum with the same outer diameter at both ends is set, and the middle part of the drum can be expanded through a bulging process, improving production efficiency.

[0069] In some embodiments of the present application, the outer diameter dimension of the barrel mouth connection section is n, and the diameter of the first end is x, satisfying x≤1.01n.

[0070] In the technical solution, under this dimensional condition, the capacity of the drum is maximized on the premise of ensuring that the drum does not interfere with the outer cylinder during rotation.

[0071] In some embodiments of the present application, the barrel mouth connection section and the barrel body section are in smooth transition; the connection section and the barrel body section are in smooth transition.

[0072] In the technical solution, the overall surface of the drum is made smooth through this design, which is convenient for production and manufacturing, and will not damage the clothes when washing the clothes.

[0073] In some embodiments of the present application, a first flange is provided on the side of the barrel mouth connection section away from the connection section.

[0074] In the technical solution, through the setting of the first flange, it is convenient to connect the barrel mouth connection section of the drum with structures such as the door body.

[0075] In some embodiments of the present application, a second flange is provided on the side of the connection section away from the barrel mouth connection section; the driving member is arranged on the outer barrel, and the output shaft of the driving member is connected to the second flange.

[0076] In the technical solution, the connection between the drum and the driving member is realized through the second flange, which is convenient for production and installation and subsequent maintenance.

[0077] In some embodiments of the present application, the axial length of the bottom barrel connection section is greater than the axial length of the barrel mouth connection section.

[0078] In some embodiments of the present application, both ends of the drum are open, and a bottom plate is provided on the bottom barrel connection section, and the bottom plate is used to close the bottom barrel connection section.

[0079] In the technical solution, both ends of the drum being open is more convenient for production and manufacturing. And it is convenient to expand through the bulging process, improving production efficiency.

[0080] In some embodiments of the present application, the outer barrel includes a first outer barrel section and a second outer barrel section. The first outer barrel section and the second outer barrel section are coaxially connected to form the outer barrel; the first outer barrel section is close to the barrel mouth connection section, the end of the first outer barrel section is open, and the barrel mouth connection section corresponds to and communicates with the opening of the first outer barrel section.

[0081] In the technical solution, during production and manufacturing, the first outer barrel section and the second outer barrel section can be sleeved on the drum, which is convenient for production and manufacturing.

[0082] The additional aspects and advantages of the present utility model will be partly given in the following description, partly will become obvious from the following description, or be understood through the practice of the present utility model. Description of the Drawings

[0083] Figure 1 is a schematic diagram of the overall structure of a washing machine according to an embodiment of the present application;

[0084] Figure 2 is a front view of a washing machine according to an embodiment of the present application;

[0085] Figure 3 is a side view of a washing machine according to an embodiment of the present application;

[0086] Figure 4 is a cross-sectional view of a washing machine according to an embodiment of the present application;

[0087] Figure 5 is a schematic structural view of a drum according to an embodiment of the present application;

[0088] Figure 6 is a front view of a drum according to an embodiment of the present application;

[0089] Figure 7 is a left view of a drum according to an embodiment of the present application;

[0090] Figure 8 is a right view of a drum according to an embodiment of the present application;

[0091] Figure 9 is a cross-sectional view of a drum according to an embodiment of the present application;

[0092] Figure 10 is a schematic structural view of a partial structure after sectioning of a drum according to an embodiment of the present application;

[0093] Figure 11 is Figure 6 a schematic structural view of region A in

[0094] Figure 12 is Figure 6 a schematic diagram of angle and distance parameters of region A in

[0095] Figure 13 is a schematic structural view of a drum and an outer tub of a washing machine provided by an embodiment of the present application;

[0096] Figure 14 is Figure 13 a schematic structural view in the Z-Z direction of

[0097] Figure 15 a schematic structural view of the outer tub of a washing machine provided by an embodiment of the present application Figure 1 ;

[0098] Figure 16 is Figure 17 a schematic structural view of region B in

[0099] Figure 17 a schematic structural view of the outer tub of a washing machine provided by an embodiment of the present application Figure 1 ;

[0100] Figure 18 is Figure 17 a schematic structural view of region C in

[0101] Explanation of reference numerals:

[0102] In the above figures: 100 is the outer cylinder; 101 is the first outer cylinder section; 102 is the second outer cylinder section; 103 is the first docking end; 104 is the second docking end; 200 is the drum; 201 is the barrel mouth connection section; 202 is the barrel body section; 203 is the barrel bottom connection section; 300 is the first flange member; 400 is the second flange member; 500 is the driving member. Detailed implementation manners

[0103] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0104] In the present utility model, unless otherwise clearly specified and defined, the terms "installed", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection, or communicable with each other; it can be directly connected, or indirectly connected through an intermediate medium, and can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0105] In the present utility model, unless otherwise clearly specified and defined, the first feature being "above" or "below" the second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over", and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "below", "under", and "beneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0106] In the present utility model, terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0107] Next, the present utility model will be specifically described by way of exemplary embodiments. However, it should be understood that without further description, the elements, structures, and features in one embodiment can also be beneficially combined into other embodiments.

[0108] Referring to Figures 1 to 14 As shown, an embodiment of the present application provides a washing machine, including a cabinet, an outer tub 100, and a drum 200. The cabinet has a placement space. The outer surface of the cabinet has a front side and a rear side. The outer tub 100 is disposed in the placement space. The outer tub 100 has an outer tub cavity.

[0109] The drum 200 is disposed in the outer tub cavity. The drum 200 is rotatably disposed relative to the outer tub 100.

[0110] The drum 200 includes a drum opening, a drum bottom, a barrel mouth connection section 201, and a barrel body section 202.

[0111] The drum opening is located at one end of the drum 200 close to the front side.

[0112] The drum bottom is located at one end of the drum 200 close to the rear side.

[0113] The barrel mouth connection section 201 is connected to one end of the barrel body section 202 close to the front side. In the barrel mouth connection section 201 and the barrel body section 202, the inner diameter close to the front side is smaller than the inner diameter close to the rear side.

[0114] Exemplarily, the washing machine provided by the embodiment of the present application can be a drum washing machine. In the drum washing machine, both the drum opening and the barrel mouth connection section 201 are disposed close to the front side of the cabinet. During the use of the washing machine, there may be collisions between the barrel mouth connection section 201 disposed close to the front side and the barrel body section 202 close to the front side and the outer tub 100. And the front side is set facing the user, and the front side will directly transmit the noise to the user, affecting the user's use experience.

[0115] Meanwhile, there is a collision between the barrel mouth connection section 201 and the barrel section 202 near the front side during the use with the outer barrel 100, which will directly reduce the service life of the drum 200 and the outer barrel 100.

[0116] In some embodiments of the present application, at least a part of the barrel section 202 is a conical structure. That is, the barrel section 202 may be a conical structure as a whole or may be a conical structure in part. It should be noted that this conical structure is not a strictly geometric conical structure. That is to say, this conical structure means that at least a part of the barrel section 202 from the front side to the rear side has an increasing inner diameter trend, and those skilled in the art can make certain deformations according to the invention purpose.

[0117] Therefore, in the washing machine provided in the embodiments of the present application, by setting the barrel section 202 as a conical structure. And, in the barrel mouth connection section 201 and the barrel section 202, the inner diameter near the front side is smaller than the inner diameter near the rear side. In this way, the distance between the part of the barrel section 202 near the front side and the outer barrel 100 is greater than the distance between the part of the barrel section 202 near the rear side and the outer barrel 100, which can reduce the possibility of collision between the drum 200 near the front side and the outer barrel 100, reduce the noise generated by the collision between the part of the barrel section 202 near the front side and the outer barrel 100 from being transmitted to the user, improve the use performance of the washing machine, and improve the service life of the drum 200 and the outer barrel 100.

[0118] In addition, the design of the conical drum 200 helps with the guidance and discharge of water flow. Especially during the dehydration process, water is more easily thrown out of the drum 200 under the action of centrifugal force, improving the drainage and dehydration efficiency.

[0119] In some embodiments of the present application, at least a part of the barrel section 202 may be a conical structure. Among them, the first conical generatrix forming the conical structure is along the outer wall of the barrel section 202 and its extension line. And the central axis of the drum 200 forms the rotation axis of the conical structure. The angle between the first conical generatrix and the rotation axis is defined as the second included angle α2, and α2 satisfies 0° < α2 < 3°.

[0120] Exemplarily, the angle between the first conical generatrix and the rotation axis is defined as the second included angle α2, and α2 satisfies 0° < α2 < 3°. When α2 is greater than 3°, due to the excessive α2, the volume of the washing cavity of the drum 200 will be reduced, and during the rotation process, the clothes are likely to accumulate too much on the rear side of the drum. Therefore, it will cause the clothes not to tumble and rub sufficiently in the washing cavity, reducing the washing effect of the clothes. In addition, the barrel section 202 with too large a taper may cause uneven load distribution in the drum 200, increasing the vibration and noise of the washing machine during high-speed rotation, affecting the user experience and the stability of the washing machine.

[0121] When α2 is equal to 0, the distance between the part of the cylinder section 202 close to the front side and the outer cylinder 100 is equal to the distance between the part of the cylinder section 202 close to the rear side and the outer cylinder 100. In this way, the probability of collision between the part of the cylinder close to the front side and the outer cylinder 100 cannot be reduced. The collision between the cylinder section 202 and the outer cylinder 100 will generate noise. At the same time, the collision between the cylinder section 202 and the outer cylinder 100 will cause damage to the outer cylinder 100 and the drum 200, reducing the service life of the washing machine.

[0122] Therefore, in some embodiments of the present application, the angle between the first conical generatrix and the rotation axis is defined as the second included angle α2, and α2 satisfies 0° < α2 < 3°. In this way, on the basis of reducing the collision between the part of the cylinder section 202 close to the front end and the outer cylinder 100, it is ensured that the volume of the washing cavity of the drum 200 is as large as possible, so that the clothes can be fully rubbed, improving the washing effect of the washing machine, and the excessive accumulation of clothes at the rear side of the drum can be minimized.

[0123] In some embodiments of the present application, 0° < α2 < 1°. On the one hand, it can reduce the collision and noise to a certain extent. At the same time, during the washing process, the possibility of excessive accumulation of clothes at the rear side of the drum 200 can be preferably reduced. For example, α2 can be 0.5°.

[0124] In some embodiments of the present application, 2° < α2 < 3°. On the one hand, it can preferably reduce the collision and noise. At the same time, during the washing process, the possibility of excessive accumulation of clothes at the rear side of the drum 200 can also be reduced. For example, α2 can be 2.5°.

[0125] In some embodiments of the present application, 1° < α2 < 2°. On the one hand, it can preferably reduce the collision and noise. At the same time, during the washing process, the possibility of excessive accumulation of clothes at the rear side of the drum 200 can also be preferably reduced. For example, α2 can be 1.5°.

[0126] The barrel mouth connection section 201 can be at least partially a conical structure. Among them, the second conical generatrix constituting the conical structure is along the outer wall and the extension line of the barrel mouth connection section 201.

[0127] In some embodiments of the present application, the angle between the second conical generatrix and the rotation axis is defined as the first included angle α1, where α1 and α2 satisfy α1 > α2.

[0128] First, in the washing machine provided in the embodiment of the present application, compared with the traditional washing machine, the diameters of the drum 200 and the outer drum 100 are relatively increased, and the gap between the drum 200 and the outer drum 100 is relatively narrowed. When the drum 200 rotates, since the barrel mouth connecting section 201 of the drum 200 is farther from the bottom of the drum than the barrel body section 202 of the drum 200, under the condition of substantially the same centrifugal force, the elastic deformation generated by the barrel mouth connecting section 201 of the drum 200 is more likely to be greater than the elastic deformation generated by the barrel body section 202 of the drum 200, and the drum 200 is more likely to be larger than the elastic deformation generated by the barrel body section 202 of the drum 200. The barrel mouth connecting section 201 of the drum 200 is more likely to collide with the outer drum 100, so a sufficient gap needs to be reserved between the barrel mouth connecting section 201 of the drum 200 and the outer drum 100. In this solution, α1>α2 is defined, which can increase the gap between the barrel mouth connecting section 201 and the outer drum 100 while ensuring that the volume of the washing chamber is not reduced as much as possible, reduce the probability of collision between the barrel mouth connecting section 201 of the drum 200 and the outer drum 100 when the drum 200 rotates, improve the use stability of the outer drum 100 and the drum 200, and improve the use efficiency of the outer drum 100 and the drum 200. Secondly, α1>α2, that is, the taper of the barrel mouth connecting section 201 is greater than the taper of the barrel body section 202, that is, the rotation radius of the barrel mouth connecting section 201 is smaller than the rotation radius of the barrel body section 202, that is, when the drum 200 rotates, the centrifugal force of the barrel mouth connecting section 201 is smaller than the centrifugal force of the barrel body section 202. Due to process limitations and the placement of clothes during washing, the centrifugal force on the drum 200 cannot be completely balanced when the drum 200 rotates. When the drum 200 rotates, the barrel mouth connecting section 201 is subjected to a smaller centrifugal force, which can make the barrel mouth connecting section of the drum 200 201 produces smaller elastic deformation, which relatively reduces the vibration amplitude of the barrel mouth connecting section 201 of the drum 200, so as to reduce the collision probability between the barrel mouth connecting section 201 and the outer drum 100; again, since the barrel section 202 is the main area for forming the washing chamber, α1>α2 is defined in this scheme, which is beneficial to ensure the washing chamber capacity of the drum 200, and increase the washing chamber of the drum 200 as much as possible while limiting the collision probability between the barrel mouth connecting section 201 and the outer drum 100, so as to ensure that the drum 200 has a large enough washing chamber to allow the clothes to fully rub and tumble.

[0129] Relatively speaking, when α1<α2, on the one hand, the gap between the portion of the barrel mouth connecting section 201 close to the front side and the outer barrel 100 is smaller than the gap between the portion of the barrel mouth connecting section 201 close to the barrel body section 202 and the outer barrel 100, and the gap between the barrel mouth connecting section 201 and the outer barrel 100 is reduced, thereby increasing the possibility of collision between the barrel mouth connecting section 201 and the outer barrel 100; on the other hand, on the basis of keeping the door seal and other structures close to the front side unchanged, if α1<α2, the connection between the barrel mouth connecting section 201 and the barrel body section 202 is concave toward the washing chamber of the drum 200, which is not conducive to ensuring the capacity of the washing chamber and is not conducive to sufficient friction and flipping of the clothes in the washing chamber.

[0130] In some embodiments of the present application, α1 and α2 satisfy α1 > α2. In this way, the washing machine can reduce the collision between the barrel connection section 201 and the part of the outer barrel 100 near the front side. At the same time, the washing cavity of the drum 200 can be increased as much as possible to ensure that the drum 200 has a sufficiently large washing cavity to enable the clothes to fully rub and tumble.

[0131] In some embodiments of the present application, there is a distance D1 between the outer wall surface of one end of the barrel connection section 201 near the front side and the inner wall surface of the outer barrel 100.

[0132] There is a distance D2 between the outer wall surface of the connection part of the barrel connection section 201 and the barrel body section 202 and the inner wall surface of the outer barrel 100.

[0133] There is a distance D3 between the outer wall surface of one end of the barrel body section 202 near the rear side and the inner wall surface of the outer barrel 100.

[0134] D1, D2 and D3 satisfy: D3 < D2 < D1.

[0135] Relatively, generally during the rotation of the drum 200, the rotational energy and vibration amplitude gradually decrease from the front side of the drum 200 near the front side to the rear side near the rear side. In this solution, the decreasing trend of D1, D2 and D3 is defined. In the washing machine provided in the embodiments of the present application, it is defined that D3 < D2 < D1. In this way, at the position near the front side of the cabinet, the distance D1 between the outer wall surface of one end of the barrel connection section 201 near the front side and the inner wall surface of the outer barrel 100 is greater than the distance D3 between the outer wall surface of one end of the barrel body section 202 near the rear side and the inner wall surface of the outer barrel 100; at the position near the front side of the cabinet, the distance D1 between the outer wall surface of one end of the barrel connection section 201 near the front side and the inner wall surface of the outer barrel 100 is greater than the distance D2 between the outer wall surface of the connection part of the barrel connection section 201 and the barrel body section 202 and the inner wall surface of the outer barrel 100. The larger distance D1 between the barrel connection section 201 and the outer barrel 100 reduces the collision and friction between the drum 200 and the outer barrel 100 near the front side, improves the use stability of the outer barrel 100 and the drum 200, and extends the service life of the outer barrel 100 and the drum 200.

[0136] At the same time, when α1>α2, the drum 200 of the washing machine uses the barrel mouth connecting section 201 of the conical structure to reduce the collision with the outer drum 100, and the outer wall surface of the barrel section 202 close to the rear side surface has a smaller distance D3 from the inner wall surface of the outer drum 100. In this way, the barrel section 202 can not only reduce the collision with the outer drum 100, but also ensure that the drum 200 has a large enough washing cavity, ensuring that the clothes in the washing cavity can fully rotate and rub, thereby improving the washing effect of the washing machine. The washing machine provided in the embodiment of the present application not only reduces the collision between the barrel mouth connecting section 201 and the outer drum 100, and reduces the noise generated by the front side of the washing machine, but also ensures that the drum 200 has a large enough washing cavity to allow the clothes to fully rub and tumble.

[0137] Furthermore, setting the size of D2 between D1 and D3 is beneficial to the transition between the barrel mouth connecting section 201 and the barrel body section 202 , and avoids forming a large corner between the barrel mouth connecting section 201 and the barrel body section 202 , which would affect the structural stability of the drum 200 .

[0138] In some embodiments of the present application, the angle between the second conical generatrix and the rotation axis is defined as a first angle α1, wherein α1 and α2 satisfy α1>α2, and α1 satisfies 3°<α1<6°.

[0139] In contrast, when α1 is less than 3°, this means that the taper of the barrel mouth connecting section 201 is very small. A smaller taper requires the manufacturing accuracy of the barrel mouth connecting section 201, which increases the difficulty of manufacturing the barrel mouth connecting section 201. In addition, manufacturing the barrel mouth connecting section 201 with a smaller taper not only requires high-precision processing equipment, but also the smaller taper may cause the barrel mouth connecting section 201 to generate greater stress during the processing, which may easily cause deformation. When α1 is greater than 6°, the larger taper will cause stress to be concentrated in certain areas of the barrel mouth connecting section 201, increasing the fatigue and fracture risks of the barrel mouth connecting section 201, which may cause the structural strength and stability of the drum to decrease.

[0140] Therefore, in some embodiments of the present application, α1 and α2 satisfy α1>α2, and α1 satisfies 3°<α1<6°. In this way, the washing machine can reduce the collision between the barrel mouth connecting section 201 and the part of the outer barrel 100 near the front side, and at the same time, it can reduce the difficulty of preparing the barrel mouth connecting section 201, reduce the uneven load distribution in the drum 200, and reduce the noise of the washing machine.

[0141] In some embodiments of the present application, 3°<α1<4°. α1 may be 3.5°. On the one hand, the collision probability can be reduced, and the processing requirements can be better met.

[0142] In some embodiments of the present application, 5° < α1 < 6°. α1 can be 5.5°. On the one hand, it can better reduce the collision probability and also reduce the processing difficulty.

[0143] In some embodiments of the present application, 4° < α1 < 5°. α1 can be 4.5°. On the one hand, it can better reduce the collision probability, also reduce the processing requirements, and effectively control the fatigue and fracture risks.

[0144] In some embodiments of the present application, D1 satisfies: 15 mm < D1 < 20 mm. In the embodiments of the present application, D1 satisfies 15 mm < D1 < 20 mm, which can effectively reduce the collision probability between the drum 200 and the outer cylinder 100, thereby reducing noise. At the same time, it improves the utilization rate of the internal space of the outer cylinder 100, increases the effective volume of the washing cavity, and thus improves the washing effect.

[0145] Relatively, when the distance D1 between the outer wall surface of the end of the barrel connection section 201 close to the front side and the inner wall surface of the outer cylinder 100 is greater than 20 mm, the distance between the barrel connection section 201 and the outer cylinder 100 is too large, and the excessive distance will occupy the effective space inside the outer cylinder 100, resulting in a reduction in the volume of the washing cavity of the drum 200. This will limit the flipping and friction of the clothes in the washing machine and reduce the washing effect of the washing machine. In addition, although a larger distance can reduce collisions, if the distance is too large, the stability of the drum 200 during high-speed rotation may be affected, resulting in increased vibration and noise.

[0146] And when the distance D1 between the outer wall surface of the end of the barrel connection section 201 close to the front side and the inner wall surface of the outer cylinder 100 is less than 15 mm, the distance between the barrel connection section 201 and the outer cylinder 100 is small, and the small distance increases the collision probability between the drum 200 and the outer cylinder 100, and the washing machine may generate more noise, affecting the user experience. At the same time, the small distance between the barrel connection section 201 and the outer cylinder 100 increases the friction and collision between the drum 200 and the outer cylinder 100, shortening their service lives. In addition, the small distance between the barrel connection section 201 and the outer cylinder 100 may cause the stability of the drum 200 during high-speed rotation to decrease, increasing vibration and noise.

[0147] Further,

[0148] In some embodiments of the present application, 15 mm < D1 < 17 mm. The value of D1 can be 15.5 mm, 16.5 mm.

[0149] In some embodiments of the present application, 18 mm < D1 < 20 mm. The value of D1 can be 18.5 mm.

[0150] In some embodiments of the present application, 17 mm < D1 < 18 mm, and the value of D1 can be 17.5 mm.

[0151] In some embodiments of the present application, D2 satisfies: 12 mm < D2 < 15 mm. In the embodiments of the present application, D2 satisfies 12 mm < D2 < 15 mm, which can effectively reduce the collision between the drum 200 and the outer tub 100, thereby reducing noise. At the same time, it improves the utilization rate of the internal space of the outer tub 100, increases the effective volume of the washing cavity, and thus improves the washing effect.

[0152] On the contrary, when the distance D2 between the outer wall surface of the connection between the drum mouth connection section 201 and the drum body section 202 and the inner wall surface of the outer tub 100 is greater than 15 mm, the distance between the connection between the drum mouth connection section 201 and the drum body section 202 and the outer tub 100 is too large. The excessive distance will occupy the effective space inside the outer tub 100, resulting in a reduction in the volume of the washing cavity of the drum 200. This will limit the flipping and friction of the clothes in the washing machine and reduce the washing effect of the washing machine. In addition, although a larger distance can reduce collisions, if the distance is too large, the stability of the drum 200 during high-speed rotation may be affected, resulting in an increase in vibration and noise.

[0153] Moreover, when the distance D2 between the outer wall surface of the connection between the drum mouth connection section 201 and the drum body section 202 and the inner wall surface of the outer tub 100 is less than 12 mm, the distance between the connection between the drum mouth connection section 201 and the drum body section 202 and the outer tub 100 is small. The small distance increases the probability of collision between the drum 200 and the outer tub 100, and the washing machine may generate more noise, affecting the user experience. At the same time, the small distance between the connection between the drum mouth connection section 201 and the drum body section 202 and the outer tub 100 increases the friction and collision between the drum 200 and the outer tub 100, shortening the service life of both, and at the same time, reducing the stability of the drum 200 during high-speed rotation, increasing vibration and noise.

[0154] In some embodiments of the present application, D3 satisfies: 6 mm < D3 < 9 mm. In the embodiments of the present application, D3 satisfies 6 mm < D2 < 9 mm, which can effectively reduce the collision between the drum 200 and the outer tub 100, thereby reducing noise. At the same time, it improves the utilization rate of the internal space of the outer tub 100, increases the effective volume of the washing cavity, and thus improves the washing effect.

[0155] In contrast, when the distance D3 between the outer wall surface of one end of the cylindrical section 202 close to the rear side surface and the inner wall surface of the outer cylinder 100 is greater than 9 mm, the distance between the cylindrical section 202 and the outer cylinder 100 is too large. Such an excessive distance will occupy the effective space inside the outer cylinder 100, resulting in a reduction in the volume of the washing cavity of the drum 200. This will limit the flipping and friction of the clothes inside the washing machine and reduce the washing effect of the washing machine. In addition, although a larger distance can reduce collisions, if the distance is too large, the stability of the drum 200 during high-speed rotation may be affected, resulting in increased vibration and noise.

[0156] Moreover, when the distance D3 between the outer wall surface of one end of the cylindrical section 202 close to the rear side surface and the inner wall surface of the outer cylinder 100 is less than 6 mm, the distance between the cylindrical section 202 and the outer cylinder 100 is small. Such a small distance increases the probability of collision between the drum 200 and the outer cylinder 100, and the washing machine may generate more noise, affecting the user experience. At the same time, the small distance between the cylindrical section 202 and the outer cylinder 100 increases the friction and collision between the drum 200 and the outer cylinder 100, shortening the service life of both.

[0157] It can be understood that the factors considered for the value ranges of D2 and D3 are the same as those for D1. At the same time, considering the size relationship among D1, D2, and D3, D2 satisfies: 12 mm < D2 < 15 mm; D3 satisfies: 6 mm < D3 < 9 mm. Further,

[0158] In some embodiments of the present application, 12 mm < D2 < 13 mm. For example, the value of D2 can be 12.5 mm.

[0159] In some embodiments of the present application, 14 mm < D2 < 15 mm. For example, the value of D2 can be 14.5 mm.

[0160] In some embodiments of the present application, 13 mm < D2 < 14 mm. For example, the value of D2 can be 13.5 mm.

[0161] Moreover, in some embodiments of the present application, 6 mm < D3 < 7 mm. For example, the value of D3 can be 6.5 mm.

[0162] In some embodiments of the present application, 8 mm < D3 < 9 mm. For example, the value of D3 can be 8.5 mm.

[0163] In some embodiments of the present application, 7 mm < D3 < 8 mm. For example, the value of D3 can be 7.5 mm.

[0164] In some embodiments of the present application, along the direction from the drum opening to the drum bottom, the barrel mouth connection section 201 has an extension length L1, the barrel body section 202 has an extension length L2, and the barrel bottom connection section 203 has an extension length L3. Among them, L1, L2, and L3 satisfy: 0.05 < L1 / L2 < 0.125; 0.05 < L3 / L2 < 0.125. In the embodiments of the present application, 0.05 < L1 / L2 < 0.125 ensures the volume of the washing cavity, reduces the noise generated by the resonance of the barrel mouth connection section 201 and the barrel body section 202, and improves the overall strength and stability of the drum 200.

[0165] Relatively, when L1 / L2 > 0.125, the length of the barrel mouth connection section 201 is greater than 25 mm, which means that the length of the barrel mouth connection section 201 is too long, and the taper of the barrel mouth connection section 201 is greater than that of the barrel body section 202. The too-long barrel mouth connection section 201 will reduce the volume of the washing cavity, which is not conducive to the washing effect of the drum 200. The too-long barrel mouth connection section 201 may cause a resonance effect, increase noise and vibration, and reduce the user experience.

[0166] Moreover, when L1 / L2 < 0.05, the length of the barrel mouth connection section 201 is less than 15 mm, which means that the length of the barrel mouth connection section 201 is too short. The too-short barrel mouth connection section 201 may cause insufficient support, reducing the overall strength and stability of the drum 200. The too-short barrel mouth connection section 201 requires higher manufacturing precision and process control, increasing the manufacturing difficulty and cost.

[0167] Similarly, the setting principle of L3 / L2 is the same as that of the above L1 / L2, so it will not be elaborated here.

[0168] Furthermore,

[0169] In some embodiments of the present application, L1 satisfies: 15 mm < L1 < 25 mm.

[0170] In some embodiments of the present application, 15 mm < L1 < 20 mm. Exemplarily, L1 can take values of 16 mm, 18 mm, 19 mm.

[0171] In some embodiments of the present application, 20 mm < L1 < 25 mm. Exemplarily, L1 can take values of 21 mm, 23 mm.

[0172] In some embodiments of the present application, 18 mm < L1 < 22 mm. Exemplarily, L1 can take values of 22 mm, 19 mm.

[0173] In some embodiments of the present application, L2 satisfies: 200 mm < L2 < 300 mm.

[0174] In some embodiments of the present application, 200 mm < L2 < 250 mm. Exemplary values of L2 can be 210 mm and 220 mm.

[0175] In some embodiments of the present application, 250 mm < L2 < 300 mm. Exemplary values of L2 can be 260 mm and 280 mm.

[0176] In some embodiments of the present application, 220 mm < L2 < 280 mm. Exemplary values of L2 can be 250 mm and 270 mm.

[0177] In some embodiments of the present application, L3 satisfies: 15 mm < L3 < 25 mm.

[0178] In some embodiments of the present application, 15 mm < L3 < 20 mm. Exemplary values of L3 can be 16 mm and 17 mm.

[0179] In some embodiments of the present application, 20 mm < L3 < 25 mm. Exemplary values of L3 can be 22 mm and 24 mm.

[0180] In some embodiments of the present application, 18 mm < L3 < 22 mm. Exemplary values of L3 can be 19 mm and 21 mm.

[0181] In some embodiments of the present application, along the direction from the drum opening to the drum bottom, at least part of the outer wall surface of the barrel mouth connecting section 201 has a gradually decreasing distance from the inner wall surface of the outer barrel 100. That is to say, the closer to the drum opening position, the larger the distance between at least part of the outer wall surface of the barrel mouth connecting section 201 and the inner wall surface of the outer barrel 100. This helps to reduce the collision probability between the barrel mouth connecting section 201 and the outer barrel 100 and reduce the noise generated between the barrel mouth connecting section 201 and the outer barrel 100. In addition, this gradually decreasing distance realizes a smooth transition of the barrel mouth connecting section 201, helps to balance the load distribution in the drum 200, and reduces the vibration and noise of the washing machine during high-speed rotation.

[0182] In some embodiments of the present application, along the direction from the drum opening to the drum bottom, at least part of the outer wall surface of the cylindrical body section 202 has a gradually decreasing distance from the inner wall surface of the outer drum 100. In this way, along the direction from the drum bottom to the drum opening, the cross-sectional area of the cylindrical body section 202 in the axial direction of the drum 200 gradually decreases, so that the movement of the clothes in the drum 200 is smoother, reducing the friction and collision between the clothes and the inner wall of the drum 200, thereby reducing the wear rate of the clothes and extending the service life of the clothes. Moreover, this structure with a gradually decreasing cross-sectional area of the cylindrical body section 202 helps the washing machine to drain water more effectively during the washing and dehydration processes, reducing the residual water and improving the dehydration effect. At the same time, this gradually decreasing distance helps to balance the load distribution in the drum 200, reducing the vibration and noise of the washing machine during high-speed rotation, and improving the stability and service life of the washing machine.

[0183] In some embodiments of the present application, the barrel connection section 201 and the cylindrical body section 202 have a smooth transition. The design of the smooth transition can help to evenly distribute the stress on the drum 200, reduce stress concentration, and enhance the strength and stability of the overall structure. The design of the smooth transition can optimize the water flow path in the drum 200, enhance the circulation and penetration ability of the water flow, and improve the washing and rinsing effects.

[0184] In some embodiments of the present application, the washing machine further includes a bottom connection section 203. The bottom connection section 203 is connected to the side of the cylindrical body section 202 close to the drum bottom.

[0185] Along the direction from the drum opening to the drum bottom, at least part of the bottom connection section 203 has a gradually increasing distance from the outer drum 100. The design of the gradually increasing distance between at least part of the bottom connection section 203 and the outer drum 100 provides a buffering effect during the rotation of the drum 200, reducing the direct contact and collision between the bottom connection section 203 and the outer drum 100, thereby reducing noise and vibration.

[0186] In some embodiments of the present application, the cylindrical body section 202 and the bottom connection section 203 have a smooth transition. The design of the smooth transition can help to evenly distribute the stress on the drum 200, reduce stress concentration, and enhance the strength and stability of the overall structure. The design of the smooth transition can optimize the water flow path in the drum 200, enhance the circulation and penetration ability of the water flow, and improve the washing and rinsing effects.

[0187] In some embodiments of the present application, the washing machine further includes a driving member 500.

[0188] The driving member 500 is located in the placement space. The output shaft of the driving member 500 passes through the outer drum 100 and is connected to the drum 200. The driving member 500 is used to drive the drum 200 to rotate relative to the outer drum 100. The direct connection of the output shaft of the driving member 500 to the drum 200 improves the transmission efficiency and reduces the energy loss.

[0189] In some embodiments of the present application, there is a spacing D4 between one end of the bottom connecting section 203 close to the bottom of the drum and the outer cylinder 100; D3 and D4 satisfy: D4 > D3.

[0190] Exemplarily, in a washing machine, the parts close to the rear side of the washing machine have fewer limiting factors on the drum 200 and the outer cylinder 100, while the parts close to the front side of the washing machine, such as the door seal and the feeding port, etc., will limit the structure and size of the drum 200 and the outer cylinder 100. This requires less collision between the drum 200 and the outer cylinder 100 close to the front side to reduce the impact noise and the impact hazard. And for the drum 200 and the outer cylinder 100 close to the rear side, due to fewer limiting structures, the generated impact noise and impact hazard are relatively less. That is to say, the requirements of the washing machine for the noise or collision generated between the drum 200 and the outer cylinder 100 close to the rear side are lower than those generated between the drum 200 and the outer cylinder 100 close to the front side. Therefore, in some embodiments of the present application, D4 is greater than D3. On the basis of ensuring the reduction of the collision between the drum 200 and the outer cylinder 100, the volume of the washing cavity is ensured so that the clothes can be fully rubbed and flipped.

[0191] In some embodiments of the present application, there is a spacing D4 between one end of the bottom connecting section 203 close to the bottom of the drum and the outer cylinder 100; D4 satisfies: 10 mm < D4 < 14 mm.

[0192] When D4 is greater than 14 mm, the spacing D4 between one end of the bottom connecting section 203 close to the bottom of the drum and the outer cylinder 100 is too large, which means the reduction of the volume of the washing cavity of the drum 200, and it is not conducive to the full tumbling and rubbing of the clothes in the washing cavity. When D4 is less than 14 mm, the spacing D4 between one end of the bottom connecting section 203 close to the bottom of the drum and the outer cylinder 100 is too small, which will increase the collision probability between the bottom connecting section 203 and the outer cylinder 100, increase the noise generated by the collision between the bottom connecting section 203 and the outer cylinder 100, and reduce the service life of the bottom connecting section 203 and the outer cylinder 100.

[0193] Therefore, in some embodiments of the present application, 10 mm < D4 < 14 mm to increase the effective volume of the washing cavity and at the same time reduce the collision between the bottom connecting section 203 and the outer cylinder 100.

[0194] In some embodiments of the present application, 10 mm < D4 < 12 mm. Exemplary values of D4 can be 10.5 mm, 11.5 mm.

[0195] In some embodiments of the present application, 12 mm < D4 < 14 mm, and an exemplary value of D4 can be 12.5 mm.

[0196] In some embodiments of the present application, 11 mm < D4 < 13 mm, and an exemplary value of D4 can be 13.5 mm.

[0197] In some embodiments of the present application, the washing machine further includes a first flange member 300.

[0198] The first flange member 300 is installed at one end of the barrel mouth connection section 201 close to the opening of the drum.

[0199] The washing machine further includes a second flange member 400.

[0200] The second flange member 400 is installed at one end of the barrel bottom connection section 203 close to the bottom of the drum and is connected to the output shaft of the driving member 500.

[0201] Exemplarily, the first flange member 300 is installed at one end of the barrel mouth connection section 201 close to the opening of the drum, and the second flange member 400 is installed at one end of the barrel bottom connection section 203 close to the bottom of the drum and is connected to the output shaft of the driving member 500. This design provides a firm connection, enhancing the overall structural strength and stability of the drum 200. The first flange member 300 and the second flange can absorb and disperse vibrations and impact forces to a certain extent, reducing the noise and vibration during the operation of the washing machine and improving the user experience. The first flange member 300 and the second flange member 400 can provide effective sealing to prevent leakage of water and detergent, improving the reliability of the washing machine.

[0202] Exemplarily, along the direction from the opening of the drum to the bottom of the drum, the distance between at least a part of the barrel bottom connection section 203 and the outer barrel 100 gradually increases. In this way, the gap between the barrel bottom connection section 203 and the outer barrel 100 is used for installing the second flange member 400 to improve the overall structural strength and stability of the drum 200.

[0203] In some embodiments of the present application, referring to Figures 15 to 18 as shown, the outer barrel 100 includes an outer barrel mouth 100, an outer barrel bottom, and a convex structure.

[0204] The outer barrel mouth 100 is located at one end of the outer barrel 100 close to the front side surface, and is disposed opposite to and communicated with the opening of the drum.

[0205] The outer barrel bottom is located at one end of the outer barrel 100 close to the rear side surface.

[0206] Along the direction from the outer barrel mouth 100 to the outer barrel bottom, the convex structure is at least formed in the middle section of the outer barrel 100, and the convex structure protrudes towards the direction where the drum 200 is located.

[0207] The barrel body section 202 includes a concave structure.

[0208] In the direction from the opening of the drum to the bottom of the drum, the concave structure is formed at least in the middle section of the drum 200, and the concave structure is concave in the direction away from the outer cylinder 100.

[0209] In some embodiments of the present application, along the radial direction of the outer cylinder 100, the convex structure and the concave structure are opposite and spaced apart.

[0210] The washing machine provided by the embodiments of the present application sets a convex structure on the outer cylinder 100 and a concave structure on the cylinder section 202. The convex and concave structures can absorb and disperse vibration and impact force to a certain extent, and further reduce the noise generated by the washing machine.

[0211] In addition, the convex structure and the concave structure are opposite and spaced apart. In this way, during the use of the washing machine, the concave structure is used to avoid the convex structure to prevent the two from colliding during the rotation of the drum 200, thereby reducing noise and vibration and improving the sound insulation performance of the washing machine.

[0212] In some embodiments of the present application, the outer cylinder 100 includes a first outer cylinder section 101 and a second outer cylinder section 102.

[0213] The first outer cylinder section 101 is located on the side of the outer cylinder 100 close to the outer cylinder opening 100.

[0214] The second outer cylinder section 102 is located on the side of the outer cylinder 100 close to the outer cylinder bottom and is butted with the first outer cylinder section 101.

[0215] By setting the outer cylinder 100 as the first outer cylinder section 101 and the second outer cylinder section 102, the washing machine provided by the embodiments of the present application enables the first outer cylinder section 101 and the second outer cylinder section 102 to achieve modular production. The first outer cylinder section 101 and the second outer cylinder section 102 can be independently manufactured and inspected to simplify the manufacturing process, reduce the manufacturing difficulty and cost. At the same time, the segmented design of the first outer cylinder section 101 and the second outer cylinder section 102 reduces the volume and weight of a single component, facilitating transportation and handling. In addition, this segmented design of the outer cylinder 100 makes the disassembly and reassembly of the outer cylinder 100 more convenient and improves production efficiency.

[0216] The butting position of the first outer cylinder section 101 and the second outer cylinder section 102 is located in the middle section of the outer cylinder 100 and forms a convex structure.

[0217] The convex structure formed at the butting position of the first outer cylinder section 101 and the second outer cylinder section 102 realizes the structural interlocking of the first outer cylinder section 101 and the second outer cylinder section 102, enhancing the overall strength and stability of the outer cylinder 100. At the same time, the convex structure can help disperse the stress on the outer cylinder 100, reduce stress concentration, and extend the service life of the outer cylinder 100. The convex structure at the butting position enhances the sealing performance of the outer cylinder 100, prevents the leakage of water and detergent, and improves the reliability of the washing machine.

[0218] In addition, by setting the docking position in the middle section of the outer cylinder 100, the stress distribution of the outer cylinder 100 can be made more uniform, reducing the stress concentration phenomenon and enhancing the overall structural strength and stability of the outer cylinder 100.

[0219] In some embodiments of the present application, referring to Figures 15 to 18 As shown, the first outer cylinder section 101 includes a first docking end 103. The first docking end 103 is located on the side of the first outer cylinder section 101 close to the second outer cylinder section 102.

[0220] The second outer cylinder section 102 includes a second docking end 104. The second docking end 104 is located on the side of the second outer cylinder section 102 close to the first outer cylinder section 101.

[0221] At least a part of the first docking end 103 is sleeved on the outer periphery of the second docking end 104. At least a part of the second docking end 104 protrudes towards the position where the drum 200 is located and forms a raised structure. In this way, the first docking end 103 is sleeved on the outer periphery of the second docking end 104, forming an interlocking structure, enhancing the connection strength and stability between the first outer cylinder section 101 and the second outer cylinder section 102, and preventing the first outer cylinder section 101 and the second outer cylinder section 102 from loosening or displacing during the washing and dewatering processes. At the same time, this interlocking structure increases the sealing performance of the outer cylinder 100 and improves the reliability of the washing machine.

[0222] In some embodiments of the present application, the raised structure extends circumferentially around the outer cylinder 100; the recessed structure extends circumferentially around the drum 200.

[0223] For the washing machine provided by the embodiments of the present application, by setting the raised structure on the outer cylinder 100 to extend circumferentially around the outer cylinder 100, the stress on the outer cylinder 100 is evenly distributed by the circumferentially extending raised structure, reducing stress concentration and improving the anti-deformation ability of the outer cylinder 100. At the same time, the circumferentially extending raised structure can absorb and disperse vibrations to a certain extent, reducing the noise and vibration during the operation of the washing machine.

[0224] For the washing machine provided by the embodiments of the present application, by setting the recessed structure on the drum 200 to extend circumferentially around the drum 200, the stress on the drum 200 is evenly distributed by the circumferentially extending recessed structure, reducing stress concentration and improving the anti-deformation ability of the drum 200. At the same time, the circumferentially extending recessed structure can absorb and disperse vibrations to a certain extent, reducing the noise and vibration during the operation of the washing machine. In addition, the circumferentially extending recessed structure can guide the water flow to form a more complex flow path in the drum 200, enhancing the circulation and penetration ability of the water flow and improving the washing and rinsing effects.

[0225] In some embodiments of the present application, a first connecting member is provided on the first docking end 103, and a second connecting member is provided on the second docking end 104. The first connecting member and the second connecting member are connected to connect the first outer cylinder section 101 and the second outer cylinder section 102.

[0226] Exemplarily, the first connecting member can be a screw, and the second connecting member can be a nut.

[0227] By connecting the first docking end 103 and the second docking end 104 through the first connecting member and the second connecting member, the first outer cylinder section 101 and the second outer cylinder section 102 can be quickly and conveniently connected together, improving the assembly efficiency. At the same time, the first connecting member and the second connecting member provide a firm mechanical connection, ensuring that the first outer cylinder section 101 and the second outer cylinder section 102 will not loosen or fall off during use.

[0228] In some embodiments of the present application, there is a spacing D5 between the convex structure and the concave structure, and D5 satisfies: 9 mm < D5 < 12 mm.

[0229] There needs to be a certain spacing between the convex structure and the concave structure to reduce the collision between the convex structure of the outer cylinder 100 and the drum 200. When the spacing D5 between the convex structure and the concave structure is less than 5 mm, the spacing between the convex structure and the concave structure of the outer cylinder 100 is too small. During the operation of the washing machine, the drum 200 rotates relative to the outer cylinder 100, and collisions may occur between the convex structure of the outer cylinder 100 and the concave structure of the drum 200, which will reduce the service life of the drum 200 and the outer cylinder 100.

[0230] When the spacing D5 between the convex structure and the concave structure is greater than 12 mm, the spacing between the convex structure and the concave structure of the outer cylinder 100 is too large, which will reduce the volume of the washing cavity of the drum 200.

[0231] Therefore, in the embodiments of the present application, the spacing D5 between the convex structure and the concave structure satisfies 9 mm < D5 < 12 mm to reduce the contact and friction between the convex structure and the concave structure during operation. At the same time, the appropriate spacing between the convex structure and the concave structure can absorb and disperse vibrations to a certain extent, reducing the noise and vibration during the operation of the washing machine and improving the user experience.

[0232] In some embodiments of the present application, 9 mm < D5 < 10 mm, and for example, D5 can be 9.5 mm.

[0233] In some embodiments of the present application, 11 mm < D5 < 12 mm, and for example, D5 can be 11.5 mm.

[0234] In some embodiments of the present application, 10 mm < D5 < 11 mm, and for example, D5 can be 10.5 mm.

[0235] Compared with the washing machines in the related art, one end of the barrel body of a washing machine near the front end opening has a conical structure, and the taper angle of the conical structure of the barrel body is 4-6°. Since the conical structure is located near the front end opening of the barrel body, it means that there will be a corner position on the barrel body, and this corner position will cause stress concentration, resulting in a collision between the barrel body and the outer barrel 100. In another washing machine, the drum 200 is conical, and the inner diameter of the cone decreases sequentially from the inner rotating shaft to the outer opening side, which means that the drum 200 is a complete conical structure barrel body. This structure will reduce the volume of the washing cavity of the drum 200, which is not conducive to the turning and friction of the clothes in the washing cavity.

[0236] In the washing machine provided by the embodiment of the present application, the barrel mouth connection section 201 and the barrel body section 202 are both set as conical structures. And, in the barrel mouth connection section 201 and the barrel body section 202, the inner diameter near the front side is smaller than the inner diameter near the rear side. In this way, the distance between the part of the barrel body section 202 near the front side and the outer barrel 100 is greater than the distance between the part of the barrel body section 202 near the rear side and the outer barrel 100, reducing the collision between the drum 200 near the front side and the outer barrel 100, reducing the transmission of the noise generated by the collision between the part of the barrel body section 202 near the front side and the outer barrel 100 to the user, improving the use performance of the washing machine, and improving the service life of the drum 200 and the outer barrel 100. At the same time, the design of the barrel mouth connection section 201 and the barrel body section 202 is beneficial to increasing the volume of the washing cavity of the drum 200, which is beneficial to the rolling and friction of the clothes in the washing cavity, and improving the washing effect of the washing machine.

[0237] By controlling the angles of α1 and α2, the washing machine provided by the embodiment of the present application not only reduces the collision between the barrel mouth connection section 201 and the outer barrel 100, reducing the noise generated on the front side of the washing machine, but also the washing machine provided by the embodiment of the present application can ensure that the drum 200 has a sufficiently large washing cavity to enable the clothes to fully rub and roll.

[0238] In the present application, the washing machine includes a box body, a driving member, an outer barrel 100, and a drum 200 disposed inside the outer barrel 100. The drum 200 is driven to rotate by the driving member, and the clothes are placed inside the drum 200. The drum 200 is driven to rotate by the driving member to realize the cleaning of the clothes.

[0239] Hereinafter, the embodiments of the present application will be described in detail with reference to the drawings.

[0240] Please refer to all the drawings. In a schematic embodiment of the washing machine of the present invention, the washing machine includes:

[0241] A box body, an outer barrel 100, a drum 200, and a driving member 500; wherein, one side of the box body is open.

[0242] The outer cylinder 100 is disposed inside the box body, and the opening of the outer cylinder 100 corresponds to the opening of the box body.

[0243] The drum 200 is disposed inside the outer cylinder 100, and the opening of the drum 200 corresponds to the opening of the outer cylinder 100.

[0244] The driving member 500 is used to drive the drum 200 to rotate.

[0245] Wherein, the drum 200 includes a barrel mouth connection section 201.

[0246] The drum 200 includes a barrel body section 202.

[0247] The drum 200 includes a barrel bottom connection section 203.

[0248] The barrel mouth connection section 201, the barrel body section 202 and the barrel bottom connection section 203 are connected in sequence.

[0249] The barrel mouth connection section 201 is close to the opening of the outer cylinder 100.

[0250] The barrel body section 202 is arranged in a conical shape. One end of the barrel body section 202 close to the barrel bottom connection section 203 is the first end, and one end close to the barrel mouth connection section 201 is the second end. The outer diameter of the first end is larger than the outer diameter of the second end.

[0251] In some embodiments, the outer diameter of the barrel mouth connection section 201 is smaller than the outer diameter of the second end.

[0252] In some embodiments, the outer diameter of the barrel mouth connection section 201 is equal to the outer diameter of the second end.

[0253] Through the above solution, by arranging the barrel body section 202 in the drum 200, the outer diameter of the side of the drum 200 close to the driving member 500 is made larger, thereby increasing the capacity of the drum 200, and the size of the end of the drum 200 far from the driving member 500 is smaller than the size of the middle part of the drum 200, so as to ensure that there is enough clearance between the end of the drum 200 far from the driving member 500 and the outer cylinder 100.

[0254] Therefore, while increasing the capacity of the drum 200, the outer diameter of the outer cylinder 100 does not need to be increased, and the size of the whole machine does not need to be increased. The washing capacity is improved on the premise of ensuring that the volume of the whole machine remains unchanged.

[0255] Please refer to all the attached drawings. In addition, the present application also provides a washing machine, which includes: a box body, an outer cylinder 100, a drum 200 and a driving member 500; wherein, one side of the box body is provided with an opening.

[0256] The outer cylinder 100 is disposed inside the box body, and the opening of the outer cylinder 100 corresponds to the opening of the box body.

[0257] The drum 200 is disposed inside the outer drum 100, and the opening of the drum 200 corresponds to the opening of the outer drum 100.

[0258] The driving member 500 is used to drive the drum 200 to rotate.

[0259] Wherein, the drum 200 includes a barrel mouth connection section 201.

[0260] The drum 200 includes a barrel body section 202.

[0261] The drum 200 includes a barrel bottom connection section 203.

[0262] The barrel mouth connection section 201, the barrel body section 202 and the barrel bottom connection section 203 are connected in sequence.

[0263] The barrel mouth connection section 201 is close to the opening of the outer drum 100.

[0264] The barrel body section 202 is arranged in a conical shape. One end of the barrel body section 202 close to the barrel bottom connection section 203 is the first end, and one end close to the barrel mouth connection section 201 is the second end. The outer diameter of the first end is larger than the outer diameter of the second end.

[0265] The outer diameter of the barrel mouth connection section 201 is not larger than the outer diameter of the second end.

[0266] The outer diameter of the barrel bottom connection section 203 is not larger than the outer diameter of the second end.

[0267] Through the above solution, through the arrangement of the barrel body section 202 in the drum 200, the outer diameter of the side of the drum 200 close to the driving member 500 is made larger, so as to increase the capacity of the drum 200, and the size of the end of the drum 200 far from the driving member 500 is smaller than the size of the middle part of the drum 200, so as to ensure that there is enough clearance between the end of the drum 200 far from the driving member 500 and the outer drum 100.

[0268] Moreover, the outer diameter of the barrel bottom connection section 203 is also small, which also ensures that when the drum 200 rotates, the barrel bottom connection section 203 will not interfere with and collide with the outer drum 100. Therefore, while increasing the capacity of the drum 200, the outer diameter of the outer drum 100 does not need to be increased, and the size of the whole machine does not need to be increased. The washing capacity is improved on the premise of ensuring that the volume of the whole machine remains unchanged.

[0269] Please refer to all the attached drawings. In some embodiments, the washing machine can be a drum washing machine. The opening of the cabinet is provided on one of the vertical sides of the washing machine.

[0270] In some embodiments, the axis of the outer drum 100 is horizontally arranged, and the opening of the outer drum 100 corresponds to and communicates with the opening of the cabinet.

[0271] In some embodiments, the drum 200 is coaxially disposed inside the outer cylinder 100. The opening of the drum 200 corresponds to and communicates with the opening of the outer cylinder 100.

[0272] In some embodiments, the barrel mouth connection section 201, the barrel body section 202, and the barrel bottom connection section 203 are integrally connected. That is, the drum 200 is integrally formed. This improves the structural strength of the drum 200.

[0273] In some embodiments, the outer diameter of the barrel mouth connection section 201 is the same as the outer diameter of the barrel bottom connection section 203. With this design, it is convenient to manufacture the drum 200. During production, a drum 200 with the same outer diameter at both ends is set, and the middle part of the drum 200 is expanded through a bulging process, which improves production efficiency.

[0274] In some embodiments, the barrel mouth connection section 201 is in the shape of a circular tube, that is, the outer diameters of both ends of the barrel mouth connection section 201 are the same.

[0275] In some embodiments, the barrel bottom connection section 203 is in the shape of a circular tube, that is, the outer diameters of both ends of the barrel bottom connection section 203 are the same.

[0276] In some embodiments, the outer diameter dimension of the barrel mouth connection section 201 is n, and the diameter of the first end is x, satisfying x ≤ 1.01n. Under this dimensional condition, on the premise of ensuring that the drum 200 does not interfere with the outer cylinder 100 during rotation, the capacity of the drum 200 is maximized.

[0277] For example, the outer diameter of the barrel mouth connection section 201 is 200 mm. Then the diameter of the first end does not exceed 202 mm.

[0278] In some embodiments, the barrel mouth connection section 201 and the barrel body section 202 have a smooth transition; the connection section 203 and the barrel body section 202 have a smooth transition. With this design, the overall surface of the drum 200 is smooth, which is convenient for production and manufacturing, and will not damage the clothes when washing the clothes.

[0279] In some embodiments, when the outer diameter of the second end of the barrel body section 202 is the same as the outer diameter of the barrel mouth connection section 201, the barrel body section 202 and the barrel mouth connection section 201 are provided with a chamfered corner.

[0280] In some embodiments, when the outer diameter of the second end of the barrel body section 202 is greater than the outer diameter of the barrel mouth connection section 201, the barrel body section 202 and the barrel mouth connection section 201 are connected by two tangent rounded corners.

[0281] In some embodiments, when the outer diameter of the second end of the barrel body section 202 is greater than the outer diameter of the barrel mouth connection section 201, the barrel body section 202 and the barrel mouth connection section 201 are connected by a curved surface.

[0282] In some embodiments, since the outer diameter of the first end is necessarily larger than that of the bottom connecting section 203 of the cylinder, the cylinder section 202 and the bottom connecting section 203 are connected by two tangent fillets.

[0283] In some embodiments, since the outer diameter of the first end is necessarily larger than that of the bottom connecting section 203 of the cylinder, the cylinder section 202 and the bottom connecting section 203 are connected by a curved surface.

[0284] In some embodiments, a first flange 300 is provided on one side of the barrel mouth connecting section 201 away from the bottom connecting section 203 of the cylinder. By providing the first flange 300, it is convenient to connect the barrel mouth connecting section 201 of the drum 200 to structures such as the door body.

[0285] In some embodiments, the first flange 300 is annular, and the first flange 300 is coaxially arranged at one end of the barrel mouth connecting section 201 away from the bottom connecting section 203 of the cylinder.

[0286] In some embodiments, the connection mode between the first flange 300 and the barrel mouth connecting section 201 is interference connection.

[0287] In some embodiments, the connection mode between the first flange 300 and the barrel mouth connecting section 201 is through a threaded connecting piece. Among them, the threaded connecting piece includes but is not limited to bolts and screws.

[0288] In some embodiments, the connection mode between the first flange 300 and the barrel mouth connecting section 201 is rivet connection.

[0289] In some embodiments, the connection mode between the first flange 300 and the barrel mouth connecting section 201 is welding.

[0290] In some embodiments, a second flange 400 is provided on one side of the bottom connecting section 203 away from the barrel mouth connecting section 201; the driving member 500 is arranged on the outer cylinder 100, and the output shaft of the driving member 500 is connected to the second flange 400. Through the second flange 400, the connection between the drum 200 and the driving member 500 is realized, which is convenient for production and installation, as well as later maintenance.

[0291] In some embodiments, the second flange 400 is annular, and the second flange 400 is coaxially arranged at one end of the bottom connecting section 203 away from the barrel mouth connecting section 201.

[0292] In some embodiments, the connection mode between the second flange 400 and the bottom connecting section 203 is interference connection.

[0293] In some embodiments, the connection mode between the second flange 400 and the bottom connecting section 203 is through a threaded connecting piece. Among them, the threaded connecting piece includes but is not limited to bolts and screws.

[0294] In some embodiments, the second flange 400 is connected to the bottom connecting section 203 of the drum by riveting.

[0295] In some embodiments, the second flange 400 is connected to the bottom connecting section 203 of the drum by welding.

[0296] In some embodiments, the axial length of the bottom connecting section 203 of the drum is greater than the axial length of the mouth connecting section 201 of the drum. With this design, it is convenient for the drum 200 to be inserted into the outer drum 100.

[0297] In some embodiments, the axial length of the bottom connecting section 203 of the drum is equal to the axial length of the mouth connecting section 201 of the drum. This facilitates the forming of the drum 200 by the bulging process.

[0298] In some embodiments, the axial length of the bottom connecting section 203 of the drum is less than the axial length of the mouth connecting section 201 of the drum. This increases the length of the mouth connecting section 201 and further reduces the possibility of the mouth connecting section 201 touching the outer drum 100 when the drum 200 shakes.

[0299] In some embodiments, both ends of the drum 200 are open, and a bottom plate is provided on the bottom connecting section 203. The bottom plate is used to close the bottom connecting section 203. Both ends of the drum 200 being open is more convenient for production and manufacturing. And it is convenient to expand by the bulging process, improving production efficiency.

[0300] In some embodiments, the connection mode between the bottom plate and the drum 200 is interference connection.

[0301] In some embodiments, the connection mode between the bottom plate and the drum 200 is through a threaded connector. Among them, the threaded connector includes but is not limited to bolts and screws.

[0302] In some embodiments, the connection mode between the bottom plate and the drum 200 is riveting.

[0303] In some embodiments, the connection mode between the bottom plate and the drum 200 is welding.

[0304] In some embodiments, a water injection hole penetrates through the barrel section 202. Water is injected into the drum 200 or the water in the drum 200 is discharged through the water injection hole.

[0305] In some embodiments, a plurality of water injection holes are circumferentially spaced around the drum 200.

[0306] In some embodiments, a plurality of water injection holes are axially spaced along the drum 200.

[0307] In some embodiments, the distance between any two adjacent water injection holes is the same.

[0308] In some embodiments, a plurality of water injection holes are uniformly distributed on the cylindrical section 202 of the drum 200.

[0309] In some embodiments, the water injection holes are also formed in the bottom plate, further increasing the speed of water injection and drainage of the drum 200.

[0310] In some embodiments, a plurality of water injection holes are uniformly distributed on the bottom plate.

[0311] In some embodiments, a cleaning portion is recessed from the peripheral wall of the cylindrical section 202 of the drum 200 toward the inside of the drum 200. When the drum 200 rotates, a vortex is generated when the water flow hits the cleaning portion. Thereby improving the cleaning ability of the clothes.

[0312] In some embodiments, a plurality of cleaning portions are uniformly distributed on the cylindrical section 202 of the drum 200. Further increasing the vortex of the water flow. And the cleaning portion can impact the clothes, further improving the cleaning ability of the clothes.

[0313] In some embodiments, the outer tub 100 includes a first outer tub section 101 and a second outer tub section 102. The first outer tub section 101 and the second outer tub section 102 are coaxially connected to form the outer tub 100; the first outer tub section 101 is connected to the barrel mouth connection section 201 near the barrel mouth. The end of the first outer tub section 101 is open, and the barrel mouth connection section 201 corresponds to and communicates with the opening of the first outer tub section 101. During production and manufacturing, the first outer tub section 101 and the second outer tub section 102 can be sleeved on the drum 200, which is convenient for production and manufacturing.

[0314] In some embodiments, the side of the second outer tub section 102 facing the first outer tub section 101 is open. The bottom connection section 203 of the drum 200 is used to be placed inside the second outer tub section 102.

[0315] In some embodiments, the driving member 500 is disposed on the inner bottom wall of the second outer tub section 102.

[0316] In some embodiments, the connection manner between the first outer tub section 101 and the second outer tub section 102 is interference connection.

[0317] In some embodiments, the connection manner between the first outer tub section 101 and the second outer tub section 102 is connected by a threaded connector. Among them, the threaded connector includes but is not limited to bolts and screws.

[0318] In some embodiments, the connection manner between the first outer tub section 101 and the second outer tub section 102 is rivet connection.

[0319] In some embodiments, the connection manner between the first outer tub section 101 and the second outer tub section 102 is welding.

[0320] In some embodiments, the driving member 500 is a motor.

[0321] In some embodiments, the driving member 500 is a motor.

[0322] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A washing machine, characterized in that, Comprising: A box body having a placement space, and the outer surface of the box body has a front side and a rear side; An outer cylinder (100) disposed in the placement space, and the outer cylinder (100) has an outer cylinder cavity; A drum (200) disposed in the outer cylinder cavity, and the drum (200) is rotatably disposed relative to the outer cylinder (100); The drum (200) includes: A drum opening located at one end of the drum (200) close to the front side; A drum bottom located at one end of the drum (200) close to the rear side; A barrel mouth connection section (201); A barrel body section (202), and the barrel mouth connection section (201) is connected to one end of the barrel body section (202) close to the front side; in the barrel mouth connection section (201) and the barrel body section (202), the inner diameter close to the front side is smaller than the inner diameter close to the rear side; Wherein, at least part of the barrel body section (202) is a conical structure; A first conical generatrix forming the conical structure along the outer wall and the extension line of the barrel body section (202); And the central axis of the drum (200) forms a rotation axis of the conical structure, and the angle between the first conical generatrix and the rotation axis is defined as a second included angle α2, and the α2 satisfies 0° < α2 < 3°.

2. The washing machine according to claim 1, wherein At least part of the barrel mouth connection section (201) is a conical structure; A second conical generatrix forming the conical structure along the outer wall and the extension line of the barrel mouth connection section (201); The angle between the second conical generatrix and the rotation axis is defined as a first included angle α1, wherein the α1 and the α2 satisfy α1 > α2.

3. The washing machine according to claim 2, characterized in that, The α1 satisfies 3° < α1 < 6°.

4. The washing machine according to claim 1, wherein There is a spacing D1 between the outer wall surface of one end of the barrel mouth connection section (201) close to the front side and the inner wall surface of the outer cylinder (100); There is a spacing D2 between the outer wall surface of the connection part of the barrel mouth connection section (201) and the barrel body section (202) and the inner wall surface of the outer cylinder (100); There is a spacing D3 between the outer wall surface of one end of the barrel body section (202) close to the rear side and the inner wall surface of the outer cylinder (100); The D1, the D2 and the D3 satisfy: D3 < D2 < D1.

5. The washing machine according to claim 4, wherein: Along the direction from the drum opening to the drum bottom, at least part of the outer wall surface of the barrel mouth connection section (201) has a gradually decreasing spacing from the inner wall surface of the outer cylinder (100); or, Along the direction from the drum opening to the drum bottom, at least part of the outer wall surface of the barrel body section (202) has a gradually decreasing spacing from the inner wall surface of the outer cylinder (100).

6. The washing machine according to claim 4, characterized in that, At least one of the following three is satisfied: The D1 satisfies: 15 mm < D1 < 20 mm; The D2 satisfies: 12 mm < D2 < 15 mm; The D3 satisfies: 6 mm < D3 < 9 mm.

7. The washing machine according to any one of claims 1 to 6, characterized in that The outer cylinder (100) includes: The outer cylinder mouth is located at one end of the outer cylinder (100) close to the front side surface; The outer cylinder bottom is located at one end of the outer cylinder (100) close to the rear side surface; The convex structure is formed at least in the middle section of the outer cylinder (100) along the direction from the outer cylinder mouth to the outer cylinder bottom, and the convex structure protrudes towards the direction where the drum (200) is located; The cylinder section (202) includes: The concave structure is formed at least in the middle section of the drum (200) along the direction from the drum opening to the drum bottom, and the concave structure is concave towards the direction away from the outer cylinder (100).

8. The washing machine according to claim 7, characterized in that, The outer cylinder (100) includes: The first outer cylinder section (101) is located on one side of the outer cylinder (100) close to the outer cylinder mouth; The second outer cylinder section (102) is located on one side of the outer cylinder (100) close to the outer cylinder bottom and is butted with the first outer cylinder section (101); The butting position of the first outer cylinder section (101) and the second outer cylinder section (102) is located in the middle section of the outer cylinder (100) and forms the convex structure.

9. The washing machine according to claim 8, wherein: The first outer cylinder section (101) includes: The first butting end (103) is located on one side of the first outer cylinder section (101) close to the second outer cylinder section (102); The second outer cylinder section (102) includes: The second butting end (104) is located on one side of the second outer cylinder section (102) close to the first outer cylinder section (101); At least part of the first butting end (103) is sleeved on the outer periphery of the second butting end (104), and at least part of the second butting end (104) protrudes towards the direction where the drum (200) is located and forms the convex structure.

10. The washing machine according to claim 9, wherein: The convex structure extends circumferentially around the outer cylinder (100); the concave structure extends circumferentially around the drum (200); The first butting end (103) is provided with a first connecting member, the second butting end (104) is provided with a second connecting member, and the first connecting member and the second connecting member are connected to connect the first outer cylinder section (101) and the second outer cylinder section (102); There is a distance D5 between the convex structure and the concave structure, and the D5 satisfies: 9mm < D5 < 12mm.

11. The washing machine according to claim 4, characterized in that, The drum (200) further includes: The bottom connecting section (203) is connected to one side of the cylinder section (202) close to the drum bottom; Along the direction from the drum opening to the drum bottom, the distance between at least part of the bottom connecting section (203) and the outer cylinder (100) gradually increases.

12. The washing machine according to claim 11, characterized in that, There is a distance D4 between one end of the bottom connecting section (203) close to the drum bottom and the outer cylinder (100); the D3 and the D4 satisfy: D4 > D3; The D4 satisfies: 10mm < D4 < 14mm.

13. The washing machine according to claim 11, characterized in that, In the direction from the opening of the drum to the bottom of the drum, the barrel mouth connecting section (201) has an extension length L1, the barrel body section (202) has an extension length L2, and the barrel bottom connecting section (203) has an extension length L3; L1, L2, and L3 satisfy: 0.05 < L1 / L2 < 0.125; 0.05 < L3 / L2 < 0.

125.

14. The washing machine according to claim 13, characterized in that, At least one of the following three conditions is satisfied: L1 satisfies: 15 mm < L1 < 25 mm; L2 satisfies: 200 mm < L2 < 300 mm; L3 satisfies: 15 mm < L3 < 25 mm.

15. The washing machine according to claim 11, wherein: The washing machine further includes: A driving member (500), the driving member (500) is located in the placement space, the output shaft of the driving member (500) penetrates through the outer tub (100) and is connected to the drum (200), and the driving member (500) is used to drive the drum (200) to rotate relative to the outer tub (100); The barrel mouth connecting section (201) and the barrel body section (202) are in smooth transition; The barrel body section (202) and the barrel bottom connecting section (203) are in smooth transition.

16. The washing machine according to claim 15, wherein: The washing machine further includes: A first flange member (300), installed at one end of the barrel mouth connecting section (201) close to the opening of the drum; A second flange member (400), installed at one end of the barrel bottom connecting section (203) close to the bottom of the drum and connected to the output shaft of the driving member (500).

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