Drum washing machine

Abstract

The present application provides a kind of drum washing machine, comprising: outer tube, one side end of which is provided with outer tube opening and is provided with placing space communicated with outer tube opening in it;Outer tube includes: front outer tube, the side end of front outer tube is provided with outer tube opening;Rear outer tube, it is provided in the opposite side of front outer tube where outer tube opening is arranged, and rear outer tube is provided with rear outer tube rear wall on the side away from front outer tube;Drum bottom, it is provided on the side of rear outer tube rear wall away from front outer tube, and drum bottom is connected with rear outer tube to form condensation space between drum bottom and rear outer tube;The top of drum bottom is provided with water inlet channel for communicating condensation space with outer space of drum bottom;Rear outer tube rear wall is provided with drainage channel for communicating condensation space with placing space;Condensate water enters into condensation space through water inlet channel, and before drying device extracts humid hot air in placing space, condensate water in condensation space exchanges heat with the humid hot air through rear outer tube;Humid hot air is dehumidified, and condensate water can be temporarily stored in condensation space, which can improve condensation effect.

Description

Technical Field

[0001] This invention belongs to the field of washing machine technology, and particularly relates to a drum washing machine. Background Technology

[0002] Currently, drum washing machines generally consist of a casing, an outer drum housed within the casing, and a drum housed within the outer drum. Existing outer drums typically consist of a front outer drum and a rear outer drum, which are usually fixed together with screws. The bearing housing is usually located on the rear wall of the rear outer drum. To meet the different maximum speed requirements of the washing machine, the bearing housing usually needs to be replaced to match the maximum speed of the washing machine. This allows the maximum speed of the washing machine to be met while reducing costs. However, since the bearing housing is fixed to the rear outer drum, replacing the bearing housing also requires replacing the rear outer drum, and sometimes the front outer drum as well. This results in the need to produce various types of rear outer drums with different types of bearing housings, leading to low versatility of the rear outer drum, low economic efficiency, and high production costs. Furthermore, the system typically involves heat exchange between the condensate and the humid air, causing the humid air to condense. The condensate is then guided into the outer cylinder and onto the inner side of the rear wall of the outer cylinder. The condensate comes into contact with the humid air and exchanges heat, causing the humid air to condense. Guide ribs are installed to guide the condensate flow. However, the way the guide ribs are installed means that the condensate can only flow along the guide ribs, resulting in a limited flow area and an insignificant condensation effect. Summary of the Invention

[0003] The present invention aims to at least partially solve one of the technical problems in the related art.

[0004] Therefore, according to embodiments of this disclosure, a drum washing machine is proposed, comprising:

[0005] chassis;

[0006] An outer cylinder is disposed inside the housing, with an outer cylinder opening on one side and a placement space communicating with the outer cylinder opening inside the outer cylinder;

[0007] A roller is rotatably disposed within the placement space;

[0008] A drying device is located outside the outer cylinder. The drying device draws air from the placement space into it and heats the air. Then, the heated high-temperature dry air is sent back to the placement space. The high-temperature dry air dries the clothes to form humid and hot air.

[0009] The outer cylinder includes:

[0010] A front outer cylinder is provided at one side end of the outer cylinder, and the side end of the front outer cylinder is provided with an opening in the outer cylinder;

[0011] The rear outer cylinder is located on the opposite side of the front outer cylinder where the outer cylinder opening is located and is connected to the front outer cylinder. The rear outer cylinder has a rear wall on the side away from the front outer cylinder.

[0012] The bottom of the cylinder is located on the rear wall of the rear outer cylinder away from the front outer cylinder. The bottom of the cylinder is connected to the rear outer cylinder to form a condensation space between the bottom of the cylinder and the rear outer cylinder. The top of the bottom of the cylinder is provided with a water inlet channel that connects the condensation space with the space outside the bottom of the cylinder.

[0013] The rear wall of the outer cylinder is provided with a drainage channel that connects the condensation space and the placement space; condensate enters the condensation space through the water inlet channel and then flows into the placement space through the drainage channel. Before the drying device extracts the hot and humid air from the placement space, the condensate in the condensation space exchanges heat with the hot and humid air through the outer cylinder.

[0014] The outer cylinder is designed with a front outer cylinder, a rear outer cylinder, and a bottom cylinder. This allows for the selection of different bottom cylinders as needed, improving the versatility of the rear and front outer cylinders and saving costs. The bottom cylinder and the rear outer cylinder are connected to form a condensation space, which allows the rear outer cylinder to dehumidify the humid and hot air in the placement space. The condensate can be temporarily stored in the condensation space, which can improve the condensation effect.

[0015] According to embodiments of this disclosure, the condensation space includes an inlet condensation space located at the inlet channel, a drain condensation space located at the drain channel, and a plurality of guide condensation spaces located on one side of the inlet and drain condensation spaces. The guide condensation spaces are connected to the inlet and drain condensation spaces. The inlet and outlet condensation spaces ensure the normal inflow and outflow of condensate. The plurality of guide spaces ensure the contact area between the condensation space and the rear outer cylinder, thereby increasing the condensation surface of the humid and hot air and improving the condensation effect of the humid and hot air.

[0016] According to embodiments of this disclosure, among the plurality of condensation spaces, the water inlet condensation space is located at the highest point in the vertical direction, and the drainage condensation space is located at the lowest point in the vertical direction. This ensures that the water entering the water inlet condensation space flows into the drainage condensation space, and that all the water flowing into the drainage condensation space flows into the drainage condensation space and then out of the condensation space. This ensures that the condensate water enters and exits the condensation space normally, and that the condensate water dehumidifies and dries the humid and hot air normally.

[0017] According to an embodiment of this disclosure, the bottom of the cylinder is provided with an inner sidewall on the side near the rear outer cylinder, and an inner reinforcing rib is provided on the inner sidewall of the bottom of the cylinder. The inner reinforcing rib and the inner sidewall of the bottom of the cylinder form a condensation groove facing the rear outer cylinder. The condensation groove is fastened to the outer wall surface of the rear outer cylinder, and the outer end of the inner reinforcing rib is connected to the rear outer cylinder to form the condensation space. The inner reinforcing rib can enhance the strength of the bottom of the cylinder and ensure the formation of the condensation space.

[0018] According to an embodiment of this disclosure, the condensation tank includes a first condensation tank, and the inner reinforcing ribs include a plurality of spaced-apart first inner reinforcing ribs and a plurality of spaced-apart second inner reinforcing ribs. The first inner reinforcing ribs intersect with the second inner reinforcing ribs. Two adjacent first inner reinforcing ribs, two adjacent second inner reinforcing ribs, and the inner sidewall of the bottom of the cylinder form the first condensation tank. The first condensation tank is fastened to the outer wall of the rear outer cylinder, and the outer ends of the inner reinforcing ribs are connected to the rear outer cylinder to form the first condensation space. This can form a grid-like first condensation space, which is beneficial for forming a large-area condensation space.

[0019] According to an embodiment of this disclosure, the first inner reinforcing rib is arranged along the circumference, and the circles in which the extension directions of the plurality of first inner reinforcing ribs are located are concentric circles, with the center of the concentric circles on the central axis of the bottom of the cylinder; the second inner reinforcing rib is arranged along the radius of the circle in which the extension direction of the first inner reinforcing rib is located, and the plurality of second inner reinforcing ribs are radially distributed; the plurality of first condensation spaces are arranged along the extension direction of the first inner reinforcing rib to form a layer of condensation space, and the first condensation space has at least one layer arranged along the extension direction of the second inner reinforcing rib, so that the first condensation space is arranged around the center of the bottom of the cylinder, making the layout of the first condensation space relatively uniform, and avoiding local overweight after condensate is introduced.

[0020] According to embodiments of this disclosure, a first connecting port is provided between two adjacent first condensing spaces on the same floor, and the two adjacent first condensing spaces on the same floor share the same second inner reinforcing rib. The first connecting port is located on the second inner reinforcing rib. A second connecting port is provided between two adjacent first condensing spaces on two adjacent floors. The second connecting port is located on the first inner reinforcing rib and / or the second inner reinforcing rib. The provision of the first connecting port and the second connecting port ensures the interconnection of the condensing spaces, enabling multiple condensation water flow paths to be formed in several condensing spaces. This ensures that the condensation water fills the condensing space, enhances the dehumidification effect, and avoids the accumulation of condensation water in the condensing space due to poor condensation water flow in some condensing spaces, thus avoiding uneven dehumidification caused by the accumulation of condensation water.

[0021] According to embodiments of this disclosure, the condensation groove includes a second condensation groove, and the inner reinforcing rib further includes a third inner reinforcing rib. The third inner reinforcing rib, the first inner reinforcing rib, and the inner wall of the cylinder bottom, or the third inner reinforcing rib, the second inner reinforcing rib, and the inner wall of the cylinder bottom, or the third inner reinforcing rib, the first inner reinforcing rib, the second inner reinforcing rib, and the inner wall of the cylinder bottom form the second condensation groove. The second condensation groove is fastened to the outer wall surface of the rear outer cylinder, and the outer end of the inner reinforcing rib is connected to the rear outer cylinder to form the second condensation space. The second condensation space is connected to the first condensation space, and any second condensation space is connected to its adjacent second condensation space and / or connected to the first condensation space. This can enhance the strength of the cylinder bottom, and the third inner reinforcing rib can adapt to the shape of the outer edge of the cylinder bottom to maximize the coverage area of ​​the condensation space on the cylinder bottom, thereby improving the condensation effect.

[0022] According to an embodiment of this disclosure, the drying device includes a drying shell and a drying air duct is provided inside the drying shell. The drying air duct has a drying air inlet. The rear outer cylinder is provided with a return air duct that connects the drying air inlet and the placement space. The return air duct has a return air inlet. The return air inlet is located on the inner wall surface of the rear wall of the rear outer cylinder. By placing the return air inlet on the inner wall surface of the rear outer cylinder, the air in the placement space can flow towards the rear wall of the rear outer cylinder. This facilitates the exchange of heat between the humid and hot air in the placement space and the condensate in the condensation space through the rear wall of the rear outer cylinder or the rear wall of the rear outer cylinder and the end of the rear outer cylinder side peripheral wall near the rear wall of the rear outer cylinder. The humid and hot air condenses to form water, thereby dehumidifying and drying the humid and hot air.

[0023] According to an embodiment of this disclosure, the rear outer cylinder has a rear wall through hole; the outer cylinder further includes:

[0024] The bearing housing is embedded in the bottom of the cylinder and integrally injection molded with the bottom of the cylinder; the bearing housing is disposed opposite to the through hole in the rear wall.

[0025] The condensation space is located outside the bearing housing; the drum has a rotating shaft on the side away from the outer drum opening, and a bearing is sleeved on the rotating shaft and the bearing is located in the bearing housing. The bearing housing is set on the bottom of the drum. When meeting the strength requirements of the washing machine at different maximum speeds, only the corresponding drum bottom needs to be selected, without the need to select the rear outer drum and the front outer drum, which improves the versatility of the rear outer drum and the front outer drum and saves costs. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a front view of the washing machine proposed in this invention;

[0028] Figure 2 This is a partial three-dimensional structural view of the washing machine proposed in this invention;

[0029] Figure 3 yes Figure 2 A magnified view of a section at point A in the middle;

[0030] Figure 4 This is a partial front view of the washing machine proposed in this invention;

[0031] Figure 5 This is a partial three-dimensional view of the washing machine proposed in this invention from another perspective;

[0032] Figure 6 This is a partial exploded view of the washing machine proposed in this invention from another perspective;

[0033] Figure 7 yes Figure 6 A magnified view of a section at point B in the middle;

[0034] Figure 8 This is a partial three-dimensional view of the washing machine proposed in this invention from another perspective;

[0035] Figure 9 This is a partial three-dimensional view of the washing machine proposed in this invention from another perspective;

[0036] Figure 10 This is a partial exploded view of the washing machine proposed in this invention from another perspective;

[0037] Figure 11 yes Figure 10 A magnified view of a section at point C;

[0038] Figure 12 This is a partial structural cross-sectional view of the washing machine proposed in this invention;

[0039] Figure 13 yes Figure 12 A magnified view of a section at point D;

[0040] Figure 14 This is a schematic diagram of the bottom structure of the cylinder according to Embodiment 1 of the present invention;

[0041] Figure 15 yes Figure 14 A magnified view of a section at point E in the middle;

[0042] Figure 16 This is a schematic diagram of the bottom structure of the cylinder according to Embodiment 1 of the present invention;

[0043] Figure 17 This is a structural schematic diagram of the bottom of the cylinder from another perspective in Embodiment 1 of the present invention;

[0044] Figure 18 This is a partial structural diagram of the washing machine proposed in this invention from another perspective;

[0045] Figure 19 This is a partial exploded view of the washing machine proposed in this invention from another perspective;

[0046] Figure 20 This is a partial exploded view of the washing machine proposed in this invention from another perspective;

[0047] Figure 21 This is a partial structural cross-sectional view of the washing machine proposed in this invention from another perspective;

[0048] Figure 22 This is a partial structural cross-sectional view of the washing machine proposed in this invention from another perspective;

[0049] Figure 23 yes Figure 22 A magnified view of a section at point F in the middle;

[0050] Figure 24 This is a partial structural diagram of the bottom of the cylinder proposed in this invention;

[0051] Figure 25 yes Figure 24 A magnified view of a section at point G in the middle;

[0052] Figure 26 This is a partial exploded view of the washing machine proposed in this invention from another perspective;

[0053] Figure 27 This is a structural diagram of the bottom of the cylinder from another perspective, as proposed in this invention;

[0054] Figure 28 yes Figure 27 A magnified view of a section at point H in the middle;

[0055] Figure 29 This is a schematic diagram of the bottom structure of the cylinder in Embodiment 2 of the present invention;

[0056] Figure 30 This is a structural schematic diagram of the bottom of the cylinder from another perspective in Embodiment 2 of the present invention.

[0057] In the above figures: Casing 1; Inlet 11; Outer cylinder 2; Front outer cylinder 21; First connecting part 211; Third connecting part 212; Counterweight positioning column 213; Rear outer cylinder 22; Rear wall of rear outer cylinder 221; Rear wall through hole 2211; Side peripheral wall of rear outer cylinder 222; Second connecting part 2221; Fourth connecting part 2222; Drainage channel 223; Return air duct 224; Return air inlet 2241; Return air outlet 2242; Motor placement position 225; Cylinder bottom 23; Water inlet column 230; Water inlet channel 231; Inner reinforcing rib 232; First inner reinforcing rib 2321; Second inner reinforcing rib 2322; Third inner... Reinforcing rib 2323; Fourth inner reinforcing rib 2324; Fifth inner reinforcing rib 2325; First connecting port 2326; Second connecting port 2327; Sixth inner reinforcing rib 2328; Inner wall of cylinder bottom 233; Condensation tank 234; First condensation tank 2341; Second condensation tank 2342; Clearance notch 235; First clearance notch 2351; Second clearance notch 2352; Third clearance notch 2353; Positioning post 236; First side peripheral wall 2361; Second side peripheral wall 2362; Step surface 2363; Outer reinforcing rib plate 2371; First partition plate 2372; First wire passage groove 2373; Wire clamp 2374; Second partition plate 2375; Second wire groove 2376; Wire hole 2378; Outer removal recess 2379; Inner removal recess 2381; Inner reinforcing rib plate 2382; First outer reinforcing rib 2383; Second outer reinforcing rib 2384; Outer wall of cylinder bottom 239; Bearing seat 24; Bearing seat connecting surface 241; Bearing seat connecting hole 242; Outer cylinder opening 25; Placement space 26; Outer cylinder side peripheral wall 27; Fixing protrusion 271; First fixing column 2711; Protrusion 2712; Roller 3; Inner cylinder opening 31; Water permeable hole 32; Door seal 42; Door seal channel 421; Rotating shaft 43; Bearing 4 4; Drying device; 5; Drying outer shell; 51; Upper air duct shell; 5101; Lower air duct shell; 5102; First fixed plate; 511; First reinforcing plate; 512; Drying air duct; 52; Drying air inlet; 521; Drying air outlet; 522; Drying fan; 53; First heater; 54; First counterweight; 611; Condensation space; 8; First condensation space; 801; Second condensation space; 802; Water inlet condensation space; 81; Drainage condensation space; 82; Guide condensation space; 83; Third connecting port; 841; Fourth connecting port; 842; First zone; 851; Discharge zone; 852; First counterweight zone; 853; Second counterweight zone; 854. Detailed Implementation

[0058] The present invention will now be described in detail through exemplary embodiments. However, it should be understood that, without further description, elements, structures, and features in one embodiment may be advantageously incorporated into other embodiments.

[0059] Example 1:

[0060] This invention proposes a drum washing machine, with reference to... Figures 1-28 Instructions for using a washing machine. (Reference) Figures 1-4 The washing machine includes a casing 1, an outer tub 2, and a drum 3.

[0061] The outer drum 2 is located inside the casing 1. The outer drum 2 is fixed within the casing 1, and a support device for fixing and supporting the outer drum may be provided inside the casing 1. Specifically, the support device for the outer drum can be an elastic support device, which can reduce the impact of the drum's rotation on the casing during washing and can play a shock-absorbing role.

[0062] refer to Figures 1-4 The outer cylinder 2 has an outer cylinder opening 25 on one side, and a placement space 26 connected to the outer cylinder opening 25 is provided inside the outer cylinder 2. The roller 3 is rotatably disposed in the placement space 26. The roller 3 has an inner cylinder opening 31 on the side near the outer cylinder opening 25. The inner cylinder opening 31 is opposite to the outer cylinder opening 25. The roller 3 has a water-permeable hole 32 to connect the outer cylinder 2 and the roller 3.

[0063] The side plate of the casing 1 near the outer drum opening 25 is provided with an inlet 11, through which clothes can be placed into the drum 3. The inlet 11 is provided with a door (not shown), which is used to open or close the inlet 11.

[0064] The washing machine also includes a door seal 42, which is connected to the inlet 11 and the outer drum opening 25. The door seal 42 seals the gap between the inlet 11 and the outer drum opening 25 to prevent the washing water in the outer drum 2 from flowing out of the outer drum and into the machine casing through the gap between the machine casing 1 and the outer drum 2.

[0065] Existing outer drums generally consist of a front outer drum and a rear outer drum. The bearing housing is located on the rear wall of the rear outer drum. To meet the different maximum speed requirements of the washing machine, it is usually necessary to replace the bearing housing so that it matches the maximum speed of the washing machine. This allows the maximum speed of the washing machine to be met while reducing costs. However, since the bearing housing is fixed to the rear outer drum, replacing the bearing housing also requires replacing the rear outer drum, and sometimes the front outer drum as well. This results in the need to produce various types of rear outer drums with different types of bearing housings, which reduces the versatility of the rear outer drum, reduces economic efficiency, and increases production costs.

[0066] Therefore, in this invention, reference is made to... Figures 5-7 The outer cylinder 2 includes a front outer cylinder 21, a rear outer cylinder 22, a cylinder bottom 23, and a bearing seat 24, with the bearing seat 24 located inside the cylinder bottom 23.

[0067] Specifically, the front outer cylinder 21 is located on one side of the outer cylinder 2, and the front outer cylinder 21 is located on the side of the outer cylinder 2 where the outer cylinder opening 25 is located. The side of the front outer cylinder 21 has the outer cylinder opening 25. The rear outer cylinder 22 is located on the opposite side of the front outer cylinder 21 where the outer cylinder opening 25 is located, and the rear outer cylinder 22 is connected to the front outer cylinder 21. The side of the rear outer cylinder 22 away from the front outer cylinder has a rear outer cylinder wall 221, and the rear outer cylinder wall 221 has a rear wall through hole 2211. The rear wall through hole 2211 can be located at the center of the rear outer cylinder wall 221, and the rear wall through hole 2211 can be a circular hole. The cylinder bottom 23 is located on the side of the rear outer cylinder wall 221 away from the front outer cylinder 21, and the cylinder bottom 23 is connected to the rear outer cylinder 22. The bottom of the cylinder 23 is connected to the rear wall 221 of the outer cylinder, or the bottom of the cylinder 23 is connected to the rear wall 221 of the outer cylinder and the end of the side peripheral wall 222 of the outer cylinder near the rear wall 221 of the outer cylinder.

[0068] For details, please refer to Figures 6-7 The front outer cylinder 21 is provided with a first connecting part 211, and the rear outer cylinder 22 is provided with a second connecting part 2221. The first connecting part 221 and the second connecting part 2221 are connected, wherein the first connecting part 211 and the second connecting part 2221 are inserted into each other. Among the first connecting part and the second connecting part, one is a slot and the other is an insert plate. The insert plate is inserted into the slot, which enables the two to be positioned. The first connecting part is provided on the side peripheral wall of the front outer cylinder, and the second connecting part is provided on the side peripheral wall 222 of the rear outer cylinder.

[0069] The front outer cylinder 21 may also be provided with a third connecting part 212, and the rear outer cylinder 22 may be provided with a fourth connecting part 2222. The third connecting part and the fourth connecting part are connected, and the third connecting part and the fourth connecting part can be connected by screws. The fourth connecting part 2222 is provided on the side peripheral wall 222 of the rear outer cylinder.

[0070] refer to Figures 4-10 The bearing housing 24 is disposed within the bottom of the cylinder 23, and is positioned opposite to the through hole 2211 in the rear wall. The bearing housing 24 is fixed within the bottom of the cylinder 23; specifically, the bearing housing 24 is embedded within the bottom of the cylinder, and the bearing housing 24 and the bottom of the cylinder 23 are integrally connected by injection molding, a reliable and easily implemented connection method. The bearing housing 24 can be located at the center of the bottom of the cylinder 23, meaning the central axis of the bearing housing and the central axis of the bottom of the cylinder are on the same straight line. The bearing housing 24 is directly opposite the through hole 2211 in the rear wall, meaning the central axis of the bearing housing and the central axis of the through hole 2211 are on the same straight line.

[0071] The outer drum is designed to include a front outer drum, a rear outer drum, and a drum bottom, with the bearing housing located on the drum bottom. When meeting the strength requirements of the washing machine at different maximum speeds, only the corresponding drum bottom needs to be selected, without needing to select the rear and front outer drums. This improves the versatility of the rear and front outer drums and saves costs.

[0072] The bottom 23 and the outer rear cylinder 22 are connected by cladding, a reliable and easy-to-implement connection. The cladding connection forms a sealing band located outside the rear wall through-hole 2011 and arranged in a ring, ensuring a sealed connection between the bottom and the outer rear cylinder and preventing water from the outer cylinder from flowing out through the rear wall through-hole 2211 between the bottom and the outer rear cylinder. Specifically, the bottom 23 is clad with the rear wall 211 of the outer rear cylinder, or the bottom 23 is clad with the rear wall 221 of the outer rear cylinder and the end of the outer rear cylinder's side peripheral wall 222 closest to the rear wall.

[0073] refer to Figures 9-10 The end of the drum 3 away from the inner drum opening 31 is connected to a rotating shaft 43. The washing machine also includes a bearing 44, which is housed in a bearing housing. The end of the rotating shaft 43 away from the inner drum opening 31 is inserted into the bearing. A tripod (not shown) is provided at the end of the drum 3 away from the inner drum opening, and the rotating shaft 43 is connected to the side of the tripod away from the inner drum opening.

[0074] The washing machine also includes a drying unit 5, which is located inside the casing 1 and outside the outer drum 2. The drying unit 5 draws air from the placement space 26 into it and heats the air. Then, the drying unit returns the heated, high-temperature dry air to the placement space, where it dries the clothes, creating humid, hot air. Specifically, the drying unit 5 draws air from the side of the placement space near the rear wall of the outer drum and heats the air. Then, the drying unit returns the heated, high-temperature dry air to the side of the placement space near the opening of the outer drum, where it dries the clothes inside the drum, creating humid, hot air.

[0075] Currently, the common practice is to exchange heat between condensate and humid air, causing the humid air to condense. The condensate is then guided into the outer cylinder and to the inner side of the rear wall of the outer cylinder. The condensate comes into contact with the humid air and exchanges heat, causing the humid air to condense. Guide ribs are set to guide the condensate flow. However, the way the guide ribs are set means that the condensate can only flow along the guide ribs, which limits the flow area of ​​the condensate and makes the condensation effect not obvious.

[0076] Therefore, in this invention, reference is made to... Figures 11-15A condensation space 8 is formed between the bottom cylinder 23 and the outer cylinder 22, located outside the bearing housing 24. The top of the bottom cylinder 23 has a water inlet channel 231 connecting the condensation space 8 to the outer space of the bottom cylinder, allowing condensate to enter the condensation space. The rear wall 221 of the outer cylinder has a drainage channel 223 connecting the condensation space 8 to the placement space 26, allowing condensate to be discharged from the condensation space 8 and into the placement space 26. Condensate enters the condensation space through the water inlet channel and then... Before the drying device 8 extracts the humid and hot air from the placement space 26, the condensate in the condensation space exchanges heat with the humid and hot air through the rear outer cylinder to dehumidify and dry the humid and hot air. The humid and hot air and the condensate in the condensation space exchange heat through the rear outer cylinder and condense into water in the rear outer cylinder, so that the condensate dehumidifies and dries the humid and hot air. The water formed by the condensation of the humid and hot air can be discharged from the outer cylinder together with the condensate flowing into the placement space. The water in the outer cylinder is discharged through the drain at the bottom of the outer cylinder, which includes a drain located at the bottom of the outer cylinder.

[0077] The outer cylinder is designed with a front outer cylinder, a rear outer cylinder, and a bottom cylinder. This allows for the selection of different bottom cylinders as needed, improving the versatility of the rear and front outer cylinders and saving costs. The bottom cylinder and the rear outer cylinder are connected to form a condensation space, which allows the rear outer cylinder to dehumidify the humid and hot air in the placement space. The condensate can be temporarily stored in the condensation space, which can improve the condensation effect.

[0078] For details, please refer to Figures 11-15 A water inlet column 230 is provided at the bottom of the cylinder, and a water inlet channel 231 is provided inside the water inlet column 230. A hole penetrating the rear wall of the outer cylinder is provided, and a drainage channel 223 is a hole channel. The water inlet column 231 can be set at the outer edge of the bottom of the cylinder and located at the top of the bottom of the cylinder. Specifically, the water inlet column 231 is set on a vertical axis that passes through the center of the bottom of the cylinder. The drainage channel 223 is located at the bottom of the cylinder near its bottom.

[0079] refer to Figures 14-15The condensation space 8 includes an inlet condensation space 81 located at the water inlet channel, a drainage condensation space 82 located at the drainage channel, and several guide condensation spaces 83 located on one side of the inlet and drainage condensation spaces. The guide condensation spaces 83 are connected to the inlet and drainage condensation spaces, allowing condensate to enter the inlet condensation space, then drain into the guide condensation space, and finally into the drainage condensation space. Each guide condensation space can form several condensate passages, each consisting of at least one guide condensation space. One guide condensation space can belong to multiple condensate passages. The inlet and outlet condensation spaces ensure the normal flow of condensate, while the guide spaces ensure the contact area between the condensation space and the rear outer cylinder, increasing the condensation surface of the humid air and improving its condensation effect.

[0080] Within several condensation spaces, the water inlet condensation space is located at the highest point in the vertical direction, and the drainage condensation space is located at the lowest point in the vertical direction. This ensures that the water entering the water inlet condensation space flows into the drainage condensation space, and that all the water in the drainage condensation space flows into the drainage condensation space and then out of the condensation space. This ensures that the condensate water can normally enter and exit the condensation space, and that the condensate water can properly dehumidify and dry the humid and hot air.

[0081] refer to Figures 16-17 The bottom of the cylinder 23 has an inner sidewall 233 near the outer cylinder. An inner reinforcing rib 232 is provided on the inner sidewall 233 to improve the strength of the bottom. The inner reinforcing rib 232 and the inner sidewall 233 form a condensation groove 234 facing the outer cylinder. When the bottom is connected to the outer cylinder, the condensation groove 234 is engaged with the outer wall of the outer cylinder, and the outer end of the inner reinforcing rib 232 is connected to the outer cylinder to form a condensation space 8. The inner reinforcing rib enhances the strength of the bottom and ensures the formation of the condensation space. Specifically, the inner reinforcing rib is connected to the rear wall of the outer cylinder, or to the rear wall of the outer cylinder and the end of the outer cylinder's side peripheral wall 222 near the rear wall. The connection method can be a cladding connection, which is reliable.

[0082] refer to Figures 16-17The condensation tank 234 includes a first condensation tank 2341. The inner reinforcing ribs 232 include several spaced-apart first inner reinforcing ribs 2321 and several spaced-apart second inner reinforcing ribs 2322. The first inner reinforcing ribs 2321 and second inner reinforcing ribs 2322 intersect, enhancing the effect of the inner reinforcing ribs on strengthening the bottom of the cylinder. Two adjacent first inner reinforcing ribs 2321, two adjacent second inner reinforcing ribs 2322, and the inner sidewall 233 of the bottom of the cylinder form the first condensation tank 2341. The first condensation tank 2341 is fastened to the outer wall of the rear outer cylinder, and the outer ends of the inner reinforcing ribs are connected to the rear outer cylinder to form a first condensation space 801. This can form a grid-like first condensation space, which is beneficial for forming a large-area condensation space. Among them, the water inlet condensation space 81 can be the first condensation space, the flow guiding condensation space can also be the first condensation space, and the drainage condensation space can also be the first condensation space.

[0083] Specifically, the first inner reinforcing rib 2321 is arranged along the circumference, and the circles extending in multiple directions of the first inner reinforcing ribs are concentric circles, with the center of the concentric circles on the central axis of the cylinder bottom. Alternatively, the center of the concentric circles can be on the central axis of the bearing seat, with the central axis of the cylinder bottom and the central axis of the bearing seat being collinear. The second inner reinforcing rib is arranged along the radius of the circle extending in the direction of the first inner reinforcing rib, and the multiple second inner reinforcing ribs are radially distributed, resulting in a significant strength enhancement and an aesthetically pleasing appearance. Multiple first condensation spaces are arranged along the extension direction of the first inner reinforcing ribs to form a first condensation space, and the first condensation space has at least one layer extending in the direction of the second inner reinforcing ribs, which can be one, two, three, four, or more layers. This arrangement ensures that the first condensation spaces are arranged around the center of the cylinder bottom, resulting in a relatively uniform layout of the first condensation spaces and preventing localized overload after the introduction of condensate.

[0084] refer to Figures 16-17 A first connecting port 2326 is provided between two adjacent first condensing spaces on the same floor. These two adjacent first condensing spaces share the same second inner reinforcing rib 2322, with the first connecting port 2326 located on the second inner reinforcing rib 2322. A second connecting port 2327 is provided between two adjacent first condensing spaces, located on the first inner reinforcing rib and / or the second inner reinforcing rib. The provision of the first and second connecting ports ensures the interconnection of the condensing spaces, allowing multiple condensate flow paths to be formed within each space. This ensures the condensate space is filled with condensate, enhancing the dehumidification effect and preventing condensate accumulation in localized condensing spaces due to poor flow, thus avoiding uneven dehumidification caused by condensate accumulation.

[0085] Specifically, two adjacent first condensing spaces can be arranged along the circumference of a circle or along the radius of the circle, with the center of the circle located on the central axis of the bottom of the cylinder. Alternatively, the centers of concentric circles can be located on the central axis of the bearing seat, with the central axis of the bottom of the cylinder collinear with the central axis of the bearing seat. When two adjacent first condensing spaces are arranged along the circumference of the circle, they share a second inner reinforcing rib, and the second connecting port is located on the second inner reinforcing rib. When two adjacent first condensing spaces are arranged along the radius of the circle, they share a first inner reinforcing rib, and the second connecting port is located on either the first inner reinforcing rib or both the first and second inner reinforcing ribs. When a first condensing space is only connected to an adjacent first condensing space in its adjacent layer, the two adjacent first condensing spaces share a first inner reinforcing rib, and the second connecting port is located on the first inner reinforcing rib. When a first condensing space is connected to two adjacent first condensing spaces in its adjacent layer, the second connecting port is located at the intersection of the first and second inner reinforcing ribs.

[0086] The first cold storage space of a layer can be a ring along the first inner reinforcing rib, or the first cold storage space of a layer can be an arc segment along the first inner reinforcing rib.

[0087] refer to Figures 16-17 The condensation tank 234 further includes a second condensation tank 2342, wherein the first condensation tank and the second condensation tank can exist simultaneously or separately. The inner reinforcing rib also includes a third inner reinforcing rib 2323. The third inner reinforcing rib, the first inner reinforcing rib, and the inner wall of the cylinder bottom form the second condensation tank; or, the third inner reinforcing rib, the second inner reinforcing rib, and the inner wall of the cylinder bottom form the second condensation tank; or, the third inner reinforcing rib, the first inner reinforcing rib, the second inner reinforcing rib, and the inner wall of the cylinder bottom form the second condensation tank. The second condensation tank is fastened to the outer wall of the rear outer cylinder, and the outer end of the inner reinforcing rib is connected to the rear outer cylinder to form a second condensation space 802. When the first condensation space exists, the second condensation space communicates with the first condensation space, and any second condensation space communicates with its adjacent second condensation space and / or with the first condensation space, which can enhance the strength of the cylinder bottom. Furthermore, the third inner reinforcing rib can adapt to the shape of the outer edge of the cylinder bottom, maximizing the coverage area of ​​the condensation space on the cylinder bottom and improving the condensation effect.

[0088] For details, please refer to Figures 18-20The drying device 5 includes a drying shell 51, which is disposed on the outside of the outer cylinder 2. A drying air duct 52 is provided inside the drying shell 51. One end of the drying air duct 52 is provided with a drying air inlet 521 and the other end of the drying air duct is provided with a drying air outlet 522. The drying air duct 52 is connected to the placement space 26 through the drying air inlet 521 and the drying air outlet 522. The drying air duct 52 is connected to the end of the placement space near the rear wall of the outer cylinder through the drying air inlet, and the drying air duct 52 is connected to the end of the placement space near the opening of the outer cylinder through the drying air outlet.

[0089] refer to Figures 18-20 The drying air inlet 521 is located at one end of the drying air duct near the rear wall of the outer cylinder, and the drying air outlet 522 is located at one end of the drying air duct 52 near the front outer cylinder. The drying air duct contains a drying fan 53 and a first heater 54. The drying fan 53 is located on the side of the drying air duct near the drying air inlet, and the first heater 54 is located on the side of the drying fan near the drying air outlet. The drying fan can be a centrifugal fan, and the air inlet side of the drying fan is located on the side of the drying fan near the outer cylinder.

[0090] refer to Figures 20-23 One end of the drying shell 51 is connected to the door seal 42. The drying air outlet is located at the connection between the drying shell and the door seal. The door seal 42 is provided with a door seal channel 421 that connects the drying air duct to the placement space. The drying air duct is connected to the placement space 26 through the door seal channel 421.

[0091] A return air duct 224 is provided on the rear wall of the outer cylinder. The drying air duct 52 is connected to the placement space 26 through the return air duct 224. The return air duct has a return air inlet 2241 and a return air outlet 2242. The return air inlet is located on the inner wall surface of the outer cylinder, and the return air outlet is located at the outer edge of the outer cylinder. By setting the return air inlet on the inner wall surface of the outer cylinder, the air in the placement space can flow towards the outer wall of the outer cylinder. This facilitates the exchange of heat between the humid and hot air in the placement space and the condensate in the condensation space through the outer wall of the outer cylinder or the outer wall of the outer cylinder and the end of the outer cylinder side wall near the outer cylinder. The humid and hot air condenses to form water, thereby dehumidifying and drying the humid and hot air.

[0092] The inner wall of the rear outer cylinder is recessed on the side facing the bottom of the cylinder to form a return air inlet 2241. The outer side of the rear outer cylinder protrudes towards the bottom of the cylinder to form a return air duct 224 located therein. The recess is conducive to the concentration of air and to slow down the air flow rate, reduce noise, so as to achieve silent drying and improve the user experience.

[0093] refer to Figures 24-26The outer edge of the cylinder bottom is provided with a clearance notch 235 to avoid the outer cylinder. The clearance notch 235 includes a first clearance notch 2351 to avoid the return air duct 224. The rear wall of the outer cylinder is set in the first clearance notch, which can play a positioning role. The first inner reinforcing rib 2321 is provided with a notch to avoid the return air duct 224, which creates an interruption on the first inner reinforcing rib, making the first inner reinforcing rib an arc-shaped inner reinforcing rib.

[0094] refer to Figures 2-3 The outer cylinder 2 has a fixing protrusion 271 on its outer cylinder side wall 27, and the fixing protrusion 271 has a threaded hole; the drying shell 51 has a plurality of first fixing plates 511 on its edge, and the first fixing plates 511 have openings; the first fixing plates 511 on the drying shell 51 correspond to the fixing protrusion 271 on the outer cylinder side wall 27, and the openings on the first fixing plates 511 correspond to the threaded holes on the fixing protrusion 271, and the drying shell is fixed to the outer cylinder side wall 27 with screws.

[0095] The fixing protrusion 271 includes a first fixing post 2711 and a protrusion 2712. The protrusion 2712 is disposed on the side peripheral wall 27 of the outer cylinder, and the first fixing post 2711 is connected to the protrusion 2712. A first reinforcing plate 512 is provided on the drying shell 51. The first reinforcing plate 512 connects the first fixing plate 511 and the drying shell 51 to effectively strengthen the connection strength between the first fixing plate 511 and the drying shell 51.

[0096] The drying outer shell 51 is located at the top of the outer drum 1. When the washing machine is running the drying program, the drying device 5 circulates and heats the air inside the outer drum 2. That is, the drying air duct 51 leads the airflow concentrated by the return air duct 224 out of the outer drum 2, then heats it, and then lets it flow into the outer drum 2 to dry the clothes.

[0097] The drying outer shell 51 is fixed to the upper part of the outer drum 2 and offset from directly above at an angle of 8°-25°. In this embodiment, the drying outer shell 51 is fixed to the upper part of the outer drum 2 and is located at a position tilted to the right at a certain angle (where the right side is the user's right side when facing the washing machine inlet). The drying outer shell 51 is configured to act as a counterweight to reduce the cost of the product. At the same time, it balances the weight distribution of the washing machine to improve the stability of the washing machine.

[0098] The drying housing 51 includes an upper air duct housing 5101 and a lower air duct housing 5102, which are connected by screws to form the drying housing 51.

[0099] The drying air duct 52 and the return air duct 224 can be directly connected or connected through an adapter (not shown). One end of the adapter is sealed to the return air outlet 2242 of the return air duct 224, and the other end of the adapter is fixedly connected to the drying shell 51. The adapter can effectively reduce the difficulty of connecting the drying air duct 52 and the return air duct 224, facilitate installation, and reduce the processing difficulty of the drying air duct 52.

[0100] The adapter includes a top wall and a side wall surrounding the top wall; the top wall of the adapter has a through hole, and the side wall of the adapter is connected to the return air outlet.

[0101] Under the action of the drying fan in the drying duct, the air passing through the clothes in the washing machine is guided to the return air duct. The air enters through the return air inlet of the return air duct, and enters the adapter through the return air outlet. Then, it enters the drying air duct through the through hole on the top wall of the adapter. After being heated by the heater in the drying air duct, it enters the outer drum 2 through the drying air outlet to dry the clothes, thus forming a cycle.

[0102] refer to Figures 24-25 A positioning post 236 is provided on the side of the bottom of the cylinder 23 near the rear outer cylinder. The positioning post 236 is inserted into the through hole 2211 in the rear wall, which enables positioning between the bottom of the cylinder and the rear outer cylinder, facilitating the connection between the rear outer cylinder and the bottom of the cylinder. The positioning post has a first circumferential wall 2361, which abuts against the wall of the through hole in the rear wall, thus forming a positioning between the positioning post 236 and the through hole 2211 in the rear wall. This facilitates the installation of the bottom of the cylinder onto the rear outer cylinder. After the bottom of the cylinder is installed onto the rear outer cylinder, it is connected to the rear outer cylinder by cladding. The end of the bearing seat near the rear outer cylinder is located inside the positioning post.

[0103] The positioning post 236 also has a second side peripheral wall 2362 located on the side of the first side peripheral wall 2361 away from the rear outer cylinder. The second side peripheral wall is located on the side of the first side peripheral wall away from the opening of the outer cylinder, and a stepped surface 2363 facing the rear outer cylinder is connected between the second side peripheral wall and the second side peripheral wall. The positioning post 236 is located in the through hole of the rear wall and the rear wall 221 of the rear outer cylinder abuts against the stepped surface 2363, thereby enhancing the accuracy of positioning.

[0104] When the bottom of the cylinder 23 includes the positioning post 236, the first inner reinforcing rib 2321 is disposed on the outside of the positioning post 236 and spaced apart from the positioning post, and the second inner reinforcing rib 2322 is disposed on the outside of the positioning post and spaced apart from the positioning post.

[0105] An inner removal recess 2381 is provided on the inner wall of the cylinder bottom between the first inner reinforcing rib and the positioning post. The removal recess can be a ring around the positioning post. An inner reinforcing rib plate 2382 is provided in the removal recess. The inner reinforcing rib plate is arranged along the radius of the circle, wherein the center of the circle is located on the central axis of the cylinder bottom. Multiple second inner reinforcing ribs are radially distributed.

[0106] A condensate supply device (not shown) is provided on the upper inner side of the casing. The condensate supply device includes a condensate pipe that is connected to the water inlet channel to supply condensate to the condensation space. One end of the condensate pipe is connected to a water supply valve to control the delivery of condensate, and the other end is connected to the water inlet column 230 and connected to the water inlet channel 231. The condensate is controlled to enter the condensation space by controlling the water inlet valve.

[0107] When the washing machine runs the drying cycle, cold water is supplied by the condensate water supply device and flows within the condensation space. Simultaneously, the hot, humid air after drying the laundry moves towards the return air duct. This hot, humid air exchanges heat with the condensate water in the condensation space through the outer drum, thus preventing condensation from forming on the inner wall of the outer drum or on its side walls, avoiding the area near the rear wall. Because the condensation space is located on the outer side of the outer drum, it can utilize a large area to generate condensate, thereby improving the efficiency of condensate generation and enhancing the air drying effect.

[0108] In this application, a front temperature sensor is provided at the front end of the outer cylinder near the drying duct 51 to detect the temperature of the heated air; a temperature limiter is provided on the side wall of the drying duct 51 corresponding to the position of the first heater to limit the heating temperature; and a rear temperature sensor is provided on the adapter to detect the air temperature in the return air duct. The above temperature sensors effectively detect the temperature of each part to control the drying program, thereby improving drying efficiency and drying effect, and reducing damage to clothing.

[0109] In this application, references Figure 26 The outer cylinder is also equipped with a transport bolt post, and the bottom of the cylinder is equipped with a second avoidance notch 2352 to avoid the transport bolt post.

[0110] In this application, references Figures 27-28 The washing machine also includes a grounding wire, which is connected to the bearing housing 24. Specifically, the grounding wire is connected to the side of the bearing housing 24 away from the rear outer drum. A wire-passing hole 2378 is provided on the bottom of the drum, which is located on the outside of the positioning post and at the inner recess 2381. After the grounding wire is connected to the bearing housing, it passes through the wire-passing hole and is connected to the grounding terminal of the second heater provided on the rear outer drum. The grounding terminal of the second heater is connected to other grounding wires of the washing machine.

[0111] In this application, the cylinder bottom also has an outer wall 239, on which an outer reinforcing rib is provided. The outer reinforcing rib includes a plurality of spaced-apart first outer reinforcing ribs 2383 and a plurality of spaced-apart second outer reinforcing ribs 2384. The first outer reinforcing ribs 2383 and the second outer reinforcing ribs 2384 intersect, thereby enhancing the effect of the outer reinforcing ribs in strengthening the cylinder bottom.

[0112] Specifically, the first outer reinforcing rib 2383 is arranged along the circumference, and the circles in which the extension directions of the multiple first outer reinforcing ribs 2383 are located are concentric circles, with the center of the concentric circles on the central axis of the bottom of the cylinder. Alternatively, the center of the concentric circles may be on the central axis of the bearing seat, and the central axis of the bottom of the cylinder and the central axis of the bearing seat are collinear. The second outer reinforcing rib 2384 is arranged along the radius of the circle in which the extension direction of the first outer reinforcing rib is located, and the multiple second outer reinforcing ribs 2384 are radially distributed, which significantly enhances the strength and has an aesthetically pleasing appearance.

[0113] In this application, a second heater is provided on the rear outer cylinder. The second heater is located on the side end of the rear outer cylinder away from the front outer cylinder. The second heater is used to heat the water in the outer cylinder. A third clearance notch 2353 is provided on the bottom of the cylinder to avoid the second heater.

[0114] In this application, an outer removal recess 2379 is provided on the outer side wall 239 of the cylinder bottom. The outer removal recess is located on the outer side of the bearing seat and on the inner side of the first outer reinforcing rib. An outer reinforcing rib plate 2371 is provided inside the outer removal recess. A first partition 2372 is provided between the outer removal recess and the wire passage hole. A first wire passage groove 2373 is provided at the end of the first partition away from the rear outer cylinder. A wire clamp 2374 is provided inside the first wire passage groove. A second partition 2375 is provided between the outer removal recess and the bearing seat. A second wire passage groove 2376 is provided at the end of the second partition away from the rear outer cylinder. A bearing seat connecting surface 241 recessed at the outer end of the second wire passage groove is provided near the second wire passage groove. The bearing housing connection surface is provided with a bearing housing connection hole 242 for connecting a grounding wire to the bearing housing. The grounding wire is inserted into the bearing housing connection hole and connected to the bearing housing. After being connected to the bearing housing, the grounding wire passes through a wire guide hole and connects to the grounding terminal of the second heater located on the rear outer cylinder. The grounding terminal of the second heater can be connected to the grounding wire on the machine casing. By setting a grounding wire to connect to the bearing housing, the bearing housing can be protected. In addition, since the bearing housing is connected to the drum through the bearing and the rotating shaft, the grounding wire can also protect the drum. Setting a grounding wire facilitates the grounding of the bearing housing and the inner cylinder connected to the bearing housing through the bearing and the rotating shaft.

[0115] In this application, the washing machine may further include a counterweight, which includes a first counterweight 611 disposed at the top of the outer drum and connected to the outer wall of the outer drum, the first counterweight being disposed on one side of the drying device. The counterweight also includes a second counterweight disposed at the bottom of the outer drum and located in front of the front outer drum.

[0116] In this application, the outer wall of the rear outer cylinder is provided with ribs, and the bottom of the cylinder is provided with ribs and rib grooves. When the bottom of the cylinder is connected to the rear outer cylinder, the ribs on the outer wall of the rear outer cylinder are located in the rib grooves, which can play a positioning role.

[0117] In this application, a sixth inner reinforcing rib 2328 is also provided on the inner side wall of the bottom of the cylinder, which has the function of strengthening the bottom of the cylinder.

[0118] Example 2:

[0119] This embodiment is based on the structure in Embodiment 1. The difference between this embodiment and Embodiment 1 is that: the condensation space is used as the first counterweight space, and the condensate in the first counterweight space is the condensate counterweight. The washing machine does not include the first counterweight block, but includes a second counterweight block. The condensate counterweight and the second counterweight block work together to counterweight the washing machine, so that the outer drum is stable.

[0120] refer to Figures 1-13 and Figures 18-28 The second counterweight is located at one end of the outer cylinder where the outer cylinder opening is located and below the outer cylinder opening; wherein, the second counterweight is located on the front outer cylinder, and the outer cylinder is provided with a counterweight positioning post 213, the second counterweight is sleeved on the counterweight positioning post, and then the second counterweight is connected to the counterweight positioning post 213 by a connector, the counterweight positioning post 213 is located on the front outer cylinder, and the counterweight positioning post 213 is located on the side facing the machine housing where the inlet is located, and the counterweight positioning post 213 is provided with a hole, and the hole is located facing the outlet side of the machine housing where the inlet is located.

[0121] refer to Figures 29-30 The condensation space 8 has several condensation spaces, and the area formed by the several condensation spaces 8 includes a first counterweight area 853 that cooperates with the second counterweight block. The first counterweight area 853 is located at the top of the bottom of the cylinder and is connected to the water inlet channel 231.

[0122] The outer drum is designed with a front outer drum, a rear outer drum, and a drum bottom. This allows for the selection of different drum bottoms as needed, improving the versatility of the front and rear outer drums and saving costs. The drum bottom and the rear outer drum are connected to form a condensation space, which allows the rear outer drum to dehumidify the humid and hot air in the placement space. The condensate can be temporarily stored in the condensation space, improving the condensation effect. When water enters the condensation space, the water in the condensation space can act as a counterweight, replacing the upper counterweight and saving the original space of the upper counterweight. The area formed by the condensation space includes a first counterweight area that matches the second counterweight block, which can improve the stability of the washing machine during operation and extend the service life of the washing machine.

[0123] refer to Figures 29-30The area formed by several condensation spaces also includes a first zone 851 located inside and connected to the first counterweight zone, and a discharge zone 852 located outside and connected to the first zone. The discharge zone is spaced apart from the first counterweight zone and is connected to the drainage channel 223 to ensure that condensate can be smoothly discharged from the condensation space and to improve the condensation effect on humid and hot air. The first zone is used to connect other zones, the discharge zone is used to discharge condensate, and the first counterweight zone is used to balance the second counterweight.

[0124] A refrigerated space located in the first counterweight zone is connected to the water inlet channel. Among the several condensing spaces, the condensing space connected to the water inlet channel is located at the highest point in the vertical direction. A condensing space located in the discharge zone is connected to the drainage channel. Among the several condensing spaces, the condensing space connected to the drainage channel is located at the lowest point in the vertical direction. This ensures that the condensate entering the first counterweight zone can flow smoothly to the discharge zone, ensuring the normal dehumidification and drying of the humid and hot air by the condensate.

[0125] The outer cylinder has a front side and a rear side that are arranged opposite to each other in its thickness direction. The opening of the outer cylinder is located on the front side of the outer cylinder, and the bottom of the cylinder is located on the rear side of the outer cylinder. The outer cylinder also has a top and a bottom that are arranged opposite to each other in its height direction, and a left side and a right side that are arranged in its width direction.

[0126] The drum washing machine also includes a motor (not shown). The motor drives the drum to rotate and is located at the bottom of the outer drum, offset to its left or right. A motor mounting position 225 is provided on the outer drum, and the motor is located at this position, specifically on the rear outer drum. The motor mounting position is located at the bottom of the rear outer drum, offset to its left.

[0127] refer to Figures 29-30 The area formed by several condensation spaces also includes a second counterweight area 854 that cooperates with the motor. The second counterweight area 854 is located outside and connected to the first area, and is spaced apart from the first counterweight area and the discharge area. The second counterweight area is located to the right or left of the first counterweight area. This second counterweight area facilitates motor installation, improves the stability of the washing machine during operation, and extends its service life. Specifically, the second counterweight area cooperates with the motor. When the motor is located at the bottom of the outer drum and offset to its left, the second counterweight area is located to the right of the first counterweight area; when the motor is located at the bottom of the outer drum and offset to its right, the second counterweight area is located to the left of the first counterweight area. The first area, the discharge area, the first counterweight area, and the second counterweight area can all be used for heat exchange of humid air.

[0128] refer to Figures 29-30Several condensing spaces are arranged in layers around the center of the drum bottom. A third connecting port 841 is provided between two adjacent condensing spaces within the same layer to connect them. A fourth connecting port 842 is provided between two adjacent condensing spaces. There is at least one fourth connecting port 842 between two adjacent condensing spaces; there may be one, two, or more fourth connecting ports 842. The opening area of ​​the third connecting port 841 is larger than the opening area of ​​the fourth connecting port 842, which improves the smooth flow of condensate within each condensing space, ensuring that the condensate fills the counterweight area and is evenly distributed within each area, thus ensuring better realization of the condensate counterweight function, improving the stability of the washing machine during operation, and extending the service life of the washing machine. When there is one or two fourth connecting ports 842 between two adjacent condensing spaces, the fourth connecting port 842 is located at the end of one of the adjacent condensing spaces.

[0129] Multiple condensing spaces located in the same layer are arranged along the circumference. The circles in which the multiple condensing spaces are arranged are concentric circles. The center of the concentric circles is on the central axis of the bottom of the cylinder and on the central axis of the bearing seat. This makes the condensing spaces surround the outside of the center of the bottom of the cylinder, which facilitates the layout of each zone and enables the condensate to be counterweighted.

[0130] refer to Figures 29-30 The inner reinforcing rib 232 includes several fourth inner reinforcing ribs 2324 and several fifth inner reinforcing ribs 2325 arranged at intervals. The fourth inner reinforcing ribs 2324 are arranged along the circumference, and the circles in which the multiple fourth inner reinforcing ribs 2324 extend are concentric circles. The center of the concentric circles is on the central axis of the bottom of the cylinder, or the center of the concentric circles is on the central axis of the bearing seat. The central axis of the bottom of the cylinder and the central axis of the bearing seat are collinear. The fifth inner reinforcing ribs 2325 are arranged along the radius of the circles in which the fourth inner reinforcing ribs extend. The multiple fifth inner reinforcing ribs are radially distributed. The fourth inner reinforcing ribs 2324 and the fifth inner reinforcing ribs 2325 intersect. Two adjacent fourth inner reinforcing ribs 2324, two adjacent fifth inner reinforcing ribs 2325 and the inner sidewall 233 of the bottom of the cylinder form a groove. The groove is fastened to the outer wall of the rear outer cylinder and the outer end of the inner reinforcing ribs 232 is connected to the rear outer cylinder to form a condensation space 8, which facilitates the realization of the condensation space and can strengthen the bottom of the cylinder. Specifically, the connection method can be cladding connection, which is reliable.

[0131] The third connecting port is located on the fourth inner reinforcing rib, and the fourth connecting port is located on the third inner reinforcing rib for easy installation. The two ends of the third connecting port can extend to the third inner reinforcing rib to maximize the size of the third connecting port.

[0132] refer to Figures 29-30The first zone 851 includes at least one layer of refrigerated space. In the first zone 851, two adjacent condensing spaces located on the same layer are connected through a third connecting port 841, and two adjacent condensing spaces are connected through a fourth connecting port 842.

[0133] The first counterweight zone 853 is located outside the first zone, and the first counterweight zone 853 includes at least one layer of refrigeration space. Within the first counterweight zone, two adjacent layers of condensation space are connected by a fourth connecting port 842. The fourth connecting port 842 is located at the end of one of the layers, which may be located at one end or both ends of a layer of condensation space. When the highest point of the condensation space in the vertical direction is located at the end of the condensation space, the fourth connecting port 842 is located at one end of the layer and at the lower end of the layer; when the highest point of the condensation space in the vertical direction is located at the middle of the condensation space, the fourth connecting port 842 is located at both ends of the layer.

[0134] In the two adjacent condensation spaces connecting the first counterweight area and the first area, the fourth connection port 842 is located at the end of one of the layers. This can be the end of a condensation space within the first counterweight area, or one or both ends of a condensation space within the first counterweight area. When the highest point of the condensation space in the vertical direction is located at the end of the condensation space, the fourth connection port 842 is located at one end of the layer and at the lower end of the layer. When the highest point of the condensation space in the vertical direction is located at the middle of the condensation space, the fourth connection port 842 is located at both ends of the layer.

[0135] The discharge zone 852 is located outside the first zone. The discharge zone 852 includes at least one layer of refrigeration space. In the discharge zone 852, two adjacent layers of condensation space are connected through a fourth connecting port 842, which is located at the end of one of the layers.

[0136] In the two adjacent condensation spaces that connect the discharge zone 852 and the first zone, the fourth connection port 842 is located at the end of one of the layers, which may be the end of a condensation space within the discharge zone 852.

[0137] The second counterweight zone 854 is located outside the first zone. The second counterweight zone 854 includes at least one layer of refrigeration space. In the second counterweight zone 854, two adjacent layers of condensation space are connected through a fourth connecting port 842, which is located at the end of one of the layers.

[0138] In the two adjacent condensation spaces that connect the second counterweight zone 854 and the first zone, the fourth connecting port 842 is located at the end of one of the layers. This port can be located at the end of a condensation space within the second counterweight zone 854, or at the end of a condensation space near the bottom of the cylinder.

[0139] In the description of this invention, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0140] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

[0141] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0142] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A drum washing machine, characterized in that, include: chassis; An outer cylinder is disposed inside the housing, with an outer cylinder opening on one side and a placement space communicating with the outer cylinder opening inside the outer cylinder; A roller is rotatably disposed within the placement space; A drying device is located outside the outer cylinder. The drying device draws air from the placement space into it and heats the air. Then, the heated high-temperature dry air is sent back to the placement space. The high-temperature dry air dries the clothes to form humid and hot air. The outer cylinder includes: A front outer cylinder is provided at one side end of the outer cylinder, and the side end of the front outer cylinder is provided with an opening in the outer cylinder; The rear outer cylinder is located on the opposite side of the front outer cylinder where the outer cylinder opening is located and is connected to the front outer cylinder. The rear outer cylinder has a rear wall on the side away from the front outer cylinder. The bottom of the cylinder is located on the rear wall of the rear outer cylinder away from the front outer cylinder. The bottom of the cylinder is connected to the rear outer cylinder to form a condensation space between the bottom of the cylinder and the rear outer cylinder. The top of the bottom of the cylinder is provided with a water inlet channel that connects the condensation space with the space outside the bottom of the cylinder. The rear wall of the outer cylinder is provided with a drainage channel that connects the condensation space and the placement space; the condensate enters the condensation space through the water inlet channel and then flows into the placement space through the drainage channel. Before the drying device extracts the hot and humid air in the placement space, the condensate in the condensation space exchanges heat with the hot and humid air through the outer cylinder. The rear outer cylinder has a rear wall through hole; the outer cylinder also includes: The bearing housing is embedded in the bottom of the cylinder and integrally injection molded with the bottom of the cylinder; the bearing housing is disposed opposite to the through hole in the rear wall. The condensation space is located outside the bearing housing; the roller is provided with a rotating shaft on the side away from the outer cylinder opening, and a bearing is sleeved on the rotating shaft and the bearing is located inside the bearing housing.

2. The drum washing machine according to claim 1, characterized in that, The condensation space includes an inlet condensation space located at the inlet channel, a drain condensation space located at the drain channel, and several guide condensation spaces located on one side of the inlet condensation space and the drain condensation space. The guide condensation spaces are connected to the inlet condensation space and the drain condensation space.

3. The drum washing machine according to claim 2, characterized in that, Among the plurality of condensation spaces, the water inlet condensation space is located at the highest point in the vertical direction, and the drainage condensation space is located at the lowest point in the vertical direction.

4. The drum washing machine according to claim 2, characterized in that, The bottom of the cylinder is provided with an inner sidewall on the side near the rear outer cylinder. The inner sidewall of the cylinder is provided with an inner reinforcing rib. The inner reinforcing rib and the inner sidewall of the cylinder form a condensation groove facing the rear outer cylinder. The condensation groove is fastened to the outer wall surface of the rear outer cylinder, and the outer end of the inner reinforcing rib is connected to the rear outer cylinder to form the condensation space.

5. The drum washing machine according to claim 4, characterized in that, The condensation tank includes a first condensation tank, and the inner reinforcing ribs include a plurality of spaced first inner reinforcing ribs and a plurality of spaced second inner reinforcing ribs. The first inner reinforcing ribs intersect with the second inner reinforcing ribs. Two adjacent first inner reinforcing ribs, two adjacent second inner reinforcing ribs, and the inner sidewall of the bottom of the cylinder form the first condensation tank. The first condensation tank is fastened to the outer wall of the rear outer cylinder, and the outer end of the inner reinforcing ribs is connected to the rear outer cylinder to form a first condensation space.

6. The drum washing machine according to claim 5, characterized in that, The first inner reinforcing rib is arranged along the circumference, and the circles in which the extension directions of the plurality of first inner reinforcing ribs are located are concentric circles, with the center of the concentric circles on the central axis of the bottom of the cylinder; the second inner reinforcing rib is arranged along the radius of the circle in which the extension direction of the first inner reinforcing rib is located, and the plurality of second inner reinforcing ribs are radially distributed; the plurality of first condensation spaces are arranged along the extension direction of the first inner reinforcing rib to form a layer of condensation space, and the first condensation space has at least one layer arranged along the extension direction of the second inner reinforcing rib.

7. The drum washing machine according to claim 6, characterized in that, A first connecting port is provided between two adjacent first condensing spaces on the same floor, and the two adjacent first condensing spaces on the same floor share the same second inner reinforcing rib. The first connecting port is provided on the second inner reinforcing rib. A second connecting port is provided between two adjacent first condensing spaces on two floors. The second connecting port is provided on the first inner reinforcing rib and / or the second inner reinforcing rib.

8. The drum washing machine according to claim 6, characterized in that, The condensation groove includes a second condensation groove, and the inner reinforcing rib also includes a third inner reinforcing rib. The third inner reinforcing rib, the first inner reinforcing rib, and the inner wall of the cylinder bottom, or the third inner reinforcing rib, the second inner reinforcing rib, and the inner wall of the cylinder bottom, or the third inner reinforcing rib, the first inner reinforcing rib, the second inner reinforcing rib, and the inner wall of the cylinder bottom form the second condensation groove. The second condensation groove is fastened to the outer wall of the rear outer cylinder, and the outer end of the inner reinforcing rib is connected to the rear outer cylinder to form a second condensation space. The second condensation space is connected to the first condensation space, and any second condensation space is connected to its adjacent second condensation space and / or connected to the first condensation space.

9. The drum washing machine according to claim 1, characterized in that, The drying device includes a drying shell and a drying air duct inside the drying shell. The drying air duct has a drying air inlet. The rear outer cylinder has a return air duct that connects the drying air inlet and the placement space. The return air duct has a return air inlet, which is located on the inner wall surface of the rear wall of the rear outer cylinder.

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