washing machine
By integrating a door cleaning path with the existing circulation path using shared components, the washing machine achieves a compact design that efficiently cleans the door area without increasing the machine's size.
Patent Information
- Application Number
- JP2021134837
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2021-08-20
- Publication Date
- 2025-05-01
- Estimated Expiration
- 2041-08-20
AI Technical Summary
The challenge is to miniaturize the washing machine's internal structure to accommodate a larger rotating tank without increasing the machine's size, while also efficiently cleaning the door area without compromising the internal space.
The washing machine incorporates a circulation path for water circulation within the tank and a door cleaning path that utilizes the same members as the circulation path, allowing water to flow through the door to clean it, thus optimizing internal space and reducing the size of the water discharge structure.
This configuration allows for a compact washing machine design by sharing components between the circulation and door cleaning paths, reducing the overall size of the machine and improving assembly efficiency.
Smart Images

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Abstract
Description
[Technical field]
[0001] An embodiment of the present invention relates to a washing machine. [Background technology]
[0002] In recent years, there has been a demand for washing more laundry at once, and efforts are being made to increase the internal volume of the spin tub in order to increase the capacity of the laundry. On the other hand, the installation space for a washing machine in a living space is limited, and it is difficult to increase the size of the washing machine itself to match the increase in the size of the spin tub. Therefore, in order to increase the internal volume of the spin tub without increasing the size of the washing machine itself, it is necessary to miniaturize the internal structure of the washing machine and secure the space for the spin tub.
[0003] Conventionally, a structure has been adopted in which a nozzle is provided in a circulation path that circulates water in a water tub, and the water that has passed through the circulation path is sprayed from the nozzle into the water tub. On the other hand, there is a demand for cleaning the inside of a door that opens and closes an opening for putting laundry in and taking it out, thereby keeping the inside of the door clean. In this case, if the structure for spraying water that has passed through the circulation path into the water tub and the structure for cleaning the inside of the door are arranged independently, there is a risk that it will be difficult to reduce the size of the internal structure of the washing machine. [Prior art documents] [Patent documents]
[0004] [Patent Document 1] JP 2011-245268 A Summary of the Invention [Problem to be solved by the invention]
[0005] Therefore, a washing machine capable of miniaturizing the structure for spraying water onto the door is provided. [Means for solving the problem]
[0006] The washing machine of the embodiment includes an outer box having an opening communicating the inside with the outside, a water tub formed in a cylindrical shape with a bottom and provided within the outer box, a door provided on the outer box for opening and closing the opening, a circulation path for circulating water in the water tub, and a door cleaning path formed using the same materials as those constituting a part of the circulation path and for flushing water through the door to clean the door. [Brief description of the drawings]
[0007] [Figure 1] FIG. 1 is a vertical sectional right side view illustrating an example of a washing machine according to a first embodiment; [Diagram 2] FIG. 1 is a front view showing an example of a water tank cover according to a first embodiment; [Diagram 3] FIG. 1 is a rear view showing an example of a water tub cover with a water channel forming member attached thereto in a washing machine according to a first embodiment; [Figure 4] FIG. 4 is an enlarged view of the water tank cover according to the first embodiment, showing a portion X4 in FIG. 3; [Diagram 5] FIG. 5 is a cross-sectional view taken along line X5-X5 in FIG. 4, showing the positional relationship between the door-cleaning discharge portion and the circulation-path discharge portion according to the first embodiment. [Figure 6] FIG. 5 is a cross-sectional view showing the periphery of the circulation path discharge portion according to the first embodiment along line X6-X6 in FIG. [Figure 7] FIG. 5 is a cross-sectional view showing the periphery of the door-cleaning discharge portion according to the first embodiment along the line X7-X7 in FIG. [Figure 8] FIG. 11 is a cross-sectional view showing an example of a case where a wall portion is provided in a water channel forming member in the washing machine according to the second embodiment; [Figure 9] FIG. 13 is a rear view showing an example of a water tub cover with a water channel forming member attached thereto in a washing machine according to a third embodiment; [Figure 10] FIG. 10 is an enlarged view of the water tank cover according to the third embodiment; DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0008] Hereinafter, a number of embodiments of the present invention will be described with reference to the drawings. In each embodiment, substantially the same elements are given the same reference numerals, and the description thereof will be omitted. In addition, in the following embodiments, the terms "first" and "second" attached to components are merely intended to distinguish similar components, and do not indicate superiority or inferiority between the components or time elements.
[0009] (First embodiment) The washing machine 10 shown in FIG. 1 is a drum type washing machine in which the rotation axis of the rotating tub 13 is horizontal or inclined downward toward the rear. The washing machine 10 may or may not have a drying function. As shown in FIG. 1, the washing machine 10 includes an outer box 11, a water tub 12, a rotating tub 13, a water tub cover 14, a water channel forming member 15, a door 16, and a motor 17. In FIG. 1, the installation surface side of the washing machine 10, that is, the vertically lower side, is the lower side of the washing machine 10, and the opposite side to the installation surface, that is, the vertically upper side, is the upper side of the washing machine 10. The front side of the washing machine 10 as seen from the user, that is, the left side of the paper in FIG. 1, is the front side of the washing machine 10, and the opposite side to the user, that is, the back side of the washing machine 10, is the rear side of the washing machine 10. In addition, the moving direction of the outer circumferential surface of the rotating tub 13 when the rotating tub 13 is rotated is referred to as the circumferential direction. Moreover, a direction perpendicular to the rotation axis of the rotating tub 13 is referred to as a radial direction.
[0010] The outer box 11 is formed into a substantially rectangular hollow box shape, for example, from a stainless steel plate or the like. The outer box 11 constitutes the outer shell of the washing machine 10. The outer box 11 has an opening 111 at the front side that communicates the inside and outside of the outer box 11. The water tub 12 and the spin tub 13 are both formed into a so-called bottomed cylinder shape, with one side in the axial direction of the cylindrical shape, i.e., the front side, being open, and the other side, i.e., the rear side, having a bottom. The water tub 12 is provided in the outer box 11 and is elastically supported by a suspension (not shown). The water tub 12 has a drain port 121, as shown in FIG. 1. The drain port 121 is provided near the rear bottom of the water tub 12, and communicates the inside and outside of the water tub 12.
[0011] Rotary tub 13 is rotatably disposed within water tub 12. Rotary tub 13 is driven to rotate by motor 17. Rotary tub 13 has a large number of holes 131. Holes 131 are formed over almost the entire circumferential surface of rotary tub 13, and function as water passage holes through which water flows in and out during, for example, the washing step, rinsing step, and spin-drying step. In addition, a plurality of baffles (not shown) are provided on the inner circumferential surface of rotary tub 13. The baffles have the function of stirring and stirring up the laundry contained in rotary tub 13.
[0012] The water tank cover 14 is made of, for example, synthetic resin, and is provided on the front side, i.e., the opening side, of the water tank 12. The water tank cover 14 has a water tank opening 141, a supply port 142, and a wall portion 20. The water tank opening 141 is provided in the center of the water tank cover 14. The water tank opening 141 is formed by penetrating the water tank cover 14 in the axial direction, for example, in a circular shape, and communicates between the inside and outside of the water tank 12. The supply port 142 is provided, for example, in the lower part of the water tank cover 14, toward one side of the center of the water tank cover 14 in the left-right direction, in this case, slightly to the left, as shown in Figs. 1 and 2. The supply port 142 is a portion that connects the water tank cover 14 and the circulation hose 44.
[0013] As shown in Figs. 1 and 3, the wall 20 is formed to protrude from the rear surface 143 of the water tank cover 14, that is, the surface on the water tank 12 side. The wall 20 can be configured to have a plurality of walls having different shapes, for example, a first wall 21 and a second wall 22. As shown in Fig. 3, the first wall 21 is formed from the lower part to the upper part of the water tank cover 14 along the circumferential direction and the radial direction of the water tank cover 14. As shown in Figs. 3 and 4, the second wall 22 is formed above the water tank opening 141 and extends along the radial direction of the water tank cover 14. In this case, the second wall 22 is formed by a plurality of stepped shapes in front view or back view. The second wall 22 is not limited to a plurality of stepped shapes, and may be formed in a straight line. The second wall 22 is for partitioning the area partitioned by the rear surface 143 of the water tank cover 14 and the first wall 21. The wall portion 20 may be formed integrally with the water tank cover 14 or may be a separate body.
[0014] The water channel forming member 15 is made of, for example, synthetic resin, and covers a part of the rear surface 143 of the water tank cover 14. In this case, the water channel forming member 15 is configured to cover an area including the wall portion 20. The water channel forming member 15 is attached to the water tank cover 14 by, for example, snap fitting or screws. The water channel forming member 15 may be fixed to the water tank cover 14 by welding or adhesive. At this time, as shown in FIG. 3, etc., a space S is formed between the rear surface 143 of the water tank cover 14, the wall portion 20, and the water channel forming member 15. This space S has a size that allows liquid such as water to pass through. The second wall portion 22 functions as a wall that closes the space S. In other words, the space S is divided into a plurality of spaces with the second wall portion 22 as a boundary.
[0015] Door 16 is provided on the front side of outer box 11 and opens and closes opening 111. Door 16 has a window 161. Window 161 is made of, for example, a transparent or semi-transparent material. Therefore, a user can see inside rotating tub 13 from the outside through window 161. As shown in FIG. 1, window 161 is configured to bulge so as to enter the inside of water tub 12. The end of window 161 on the water tub 12 side is positioned to overlap water tub cover 14.
[0016] Motor 17 is provided on the outside of the bottom of water tub 12. Although details of motor 17 are not shown, it is composed of, for example, a brushless direct drive motor whose rotation speed is variable. Motor 17 is connected to rotating tub 13 and has the function of driving rotating tub 13 to rotate relative to water tub 12. In this case, shaft portion 171 of motor 17, the central axis of water tub 12, and the rotation axis of rotating tub 13 are all overlapped with each other.
[0017] The washing machine 10 also includes a water injection mechanism 30, a circulating drainage device 40, and a cleaning device 50. The water injection mechanism 30 has a function of supplying water supplied from an external water source such as a water tap into the water tub 12. As shown in FIG. 1, the water injection mechanism 30 has a water supply valve 31, a water injection case 32, and a water injection hose 33. The water supply valve 31 is configured to be electromagnetically openable and closable. The water supply valve 31 is connected to an external water source such as a water faucet (not shown). The water supply valve 31 opens and closes a path from the external water source through the water injection case 32 into the water tub 12.
[0018] The water injection case 32 is configured to be capable of storing a laundry treatment agent therein. The laundry treatment agent includes, for example, detergents such as powder detergent and liquid detergent, and finishing agents such as fabric softeners and fragrances. The water injection hose 33 is, for example, a flexible hose configured in a cylindrical shape. One end of the water injection hose 33 is connected to the water injection case 32, and the other end is connected to the water tub 12. The water injection hose 33 has a function of injecting water that has flowed into the water injection case 32 from an external water source into the water tub 12. When water flows into the water injection case 32 with the laundry treatment agent stored in the water injection case 32, the laundry treatment agent in the water injection case 32 mixes with the water flowing in the water injection case 32, and then passes through the water injection hose 33 and flows into the water tub 12.
[0019] Circulation drainage device 40 has a function of circulating water in water tub 12 and a function of draining water in water tub 12 to the outside of washing machine 10. As shown in FIG. 1, circulation drainage device 40 has connection hose 41, filter unit 42, circulation pump 43, circulation hose 44, drain valve 45, and drain hose 46. Connection hose 41 is, for example, a flexible hose. One end of connection hose 41 is connected to drain port 121, and the other end is connected to filter unit 42. Filter unit 42 is provided between drain port 121 and drain valve 45. Filter unit 42 has a mesh-shaped filter (not shown) therein, and the filter collects lint and dirt contained in the water passing through filter unit 42.
[0020] Circulation pump 43 is for pumping up water in water tub 12 through drain port 121 and connection hose 41, and pouring the water back into water tub 12. Circulation hose 44 is, for example, a flexible hose. One end of circulation hose 44 is connected to circulation pump 43, and the other end is connected to supply port 142. In other words, circulation hose 44 connects circulation pump 43 and water tub cover 14. Drain valve 45 is configured to be electromagnetically openable and closable. One end of drain hose 46 is connected to drain valve 45, and the other end is pulled out of washing machine 10.
[0021] When drain valve 45 is opened while water is stored in water tub 12, the water stored in water tub 12 is discharged outside washing machine 10 through drain hose 46. That is, drain valve 45 opens and closes a drain path for draining the water stored in water tub 12 to the outside. On the other hand, when circulation pump 43 is driven with the drain path closed by drain valve 45, circulation pump 43 pumps up water in water tub 12 through drain outlet 121 and connection hose 41, and supplies the water stored in water tub 12 to supply port 142 via circulation hose 44.
[0022] 1, the cleaning device 50 can be configured to have, for example, an on-off valve 51, a cleaning water hose 52, and a nozzle portion 53. The on-off valve 51 is configured to be electromagnetically openable and closable, and is provided downstream of the water supply valve 31. The on-off valve 51 opens and closes the path of water supplied from an external water source to the nozzle portion 53. The cleaning water hose 52 has one end connected to the on-off valve 51, and the other end connected to the nozzle portion 53.
[0023] 1 and 2, nozzle portion 53 is provided, for example, on the upper part of water tank cover 14, toward one side of the left-right center of water tank cover 14, in this case, toward the right. In other words, nozzle portion 53 is provided in a different direction from supply port 142 in the left-right direction of water tank cover 14. Nozzle portion 53 is a portion that connects cleaning water hose 52 and water tank cover 14.
[0024] Nozzle portion 53 is formed, for example, in a cylindrical shape extending in a substantially vertical direction, and is provided penetrating water tank cover 14 and first wall portion 21 in the thickness direction. Nozzle portion 53 communicates with space S formed between water tank cover 14 and water channel forming member 15, and is configured to be able to introduce water supplied from an external water source into space S. Nozzle portion 53 is not limited to a configuration extending in a substantially vertical direction, and may be inclined.
[0025] Next, an example of the configuration of water tub cover 14 and its surrounding parts will be described. In this embodiment, water tub cover 14 has a circulation outlet 61 and a door cleaning outlet 62, as shown in Figures 3 to 7. Circulation outlet 61 is provided above water tub opening 141, at two locations in total, one on each side of the left and right center of water tub cover 14 in the left-right direction. Circulation outlet 61 is provided on the rear side of water tub cover 14, i.e., on the water tub 12 side.
[0026] 5, circulation discharge part 61 is formed by penetrating bottom surface 144 of water tank cover 14 in the thickness direction, and is formed, for example, in a rectangular shape. Circulation discharge part 61 is for directly supplying water that has flowed through the space between water tank cover 14 and water channel forming member 15 via supply port 142 into water tank 12. "Directly" means that the water discharged from circulation discharge part 61 is supplied into water tank 12 without flowing through other members, such as window part 161.
[0027] As shown in FIG. 2 and other figures, the door cleaning discharge section 62 is provided, for example, above the water tank opening 141 and toward one side of the center of the water tank cover 14 in the left-right direction, in this case, toward the right. As shown in FIG. 5, the door cleaning discharge section 62 and the circulation discharge section 61 are provided at positions shifted from each other in the axial direction of the water tank 12 and at positions where they do not overlap with each other in the left-right direction of the water tank 12. In this case, the door cleaning discharge section 62 is provided at a position closer to the right in the left-right direction of the water tank 12 than the circulation discharge section 61. The door cleaning discharge section 62 is formed by penetrating the first wall section 21 and the bottom surface 144 of the water tank cover 14 in the thickness direction, and is formed, for example, in a cylindrical shape extending in a substantially vertical direction. The opening area of the door cleaning discharge section 62 is smaller than the opening area of the circulation discharge section 61, as shown in FIG. 5. The door cleaning discharge section 62 is not limited to a configuration extending in a substantially vertical direction, and may be inclined.
[0028] As shown in Figs. 5 and 7, the door cleaning discharge section 62 is provided on the front side of the water tank cover 14, i.e., on the opening 111 side, and is arranged at a position overlapping the window section 161 in the horizontal direction, i.e., in a plan view. In this case, the door cleaning discharge section 62 is located on the front side, i.e., on the opening 111 side, of the end of the window section 161 on the water tank 12 side, as shown in Fig. 7. The door cleaning discharge section 62 is for causing water that has flowed from an external water source through the cleaning device 50 and the space S between the water tank cover 14 and the water channel forming member 15 to flow to the window section 161 of the door 16. In this case, the door cleaning discharge section 62 opens toward the window section 161. Therefore, the door cleaning discharge section 62 can spray water toward the window section 161.
[0029] As shown in FIG. 1, the washing machine 10 may be configured to include, for example, a water injection path 71, a circulation path 72, and a door cleaning path 73 as water supply paths. The water injection path 71 is a path that leads to the water tub 12 through the water injection mechanism 30, for example. The circulation path 72 is a path that leads to the water tub 12 through the connection hose 41, the filter unit 42, the circulation pump 43, the circulation hose 44, the supply port 142, the space S, and the circulation discharge part 61, for example. That is, the circulation path 72 is a path that circulates the water in the water tub 12. When the circulation pump 43 is driven with the drain valve 45 closed, the water in the water tub 12 is pumped up by the circulation pump 43, and then the water is injected again into the water tub 12 from the circulation discharge part 61. In this case, the circulation path 72 constitutes a path that flows water in the direction indicated by the black arrow A in FIG. 6.
[0030] The door cleaning path 73 is a path that passes through the water supply valve 31, the on-off valve 51, the cleaning device 50, the space S, and the door cleaning discharge portion 62 to reach the window portion 161. In other words, the door cleaning path 73 is a path that causes water supplied from an external water source to flow into the window portion 161 to clean the window portion 161. When the water supply valve 31 and the on-off valve 51 are opened, water supplied from the external water source flows through the cleaning water hose 52 from the door cleaning discharge portion 62 through the window portion 161, and is then supplied into the water tub 12. In this case, the door cleaning path 73 forms a path that causes water to flow in the direction indicated by the black arrow B in FIG. 7.
[0031] Door cleaning path 73 is a path through which water supplied from an external water source reaches window portion 161 without passing through water tub 12 or water supply case 32. Therefore, water that does not contain detergent components or dirt removed from laundry can be supplied to window portion 161. Therefore, window portion 161 can be efficiently cleaned while preventing detergent components and dirt from re-adhering to window portion 161, for example.
[0032] In the present embodiment, the circulation path 72 and the door cleaning path 73 are configured to include a space S as a common configuration. As described above, the space S is formed between the rear surface 143 of the water tub cover 14, the wall portion 20, and the water channel forming member 15. That is, the door cleaning path 73 is configured using the same members as those constituting a part of the circulation path 72, in this case the water tub cover 14 and the water channel forming member 15. In other words, the water channel forming member 15 forms a part of the circulation path 72 and the door cleaning path 73 between the water tub cover 14. In this way, by configuring the circulation path 72 and the door cleaning path 73 using the same members, it is possible to standardize the members and optimize the internal structure of the washing machine 10.
[0033] 3, the space S is partitioned by the second wall portion 22. Therefore, the water flowing through the circulation path 72 and the door cleaning path 73 is separated by the second wall portion 22 and does not intersect with each other. This makes it possible to suppress interference between the water flowing through each path 72, 73 and efficiently prevent the smooth flow of water from being hindered.
[0034] According to the embodiment described above, the washing machine 10 includes the outer case 11, the water tub 12, the door 16, the circulation path 72, and the door cleaning path 73. The outer case 11 has an opening 111 that communicates the inside with the outside. The water tub 12 is formed in a bottomed cylindrical shape, is provided in the outer case 11, and is connected to the opening 111. The door 16 is provided in the outer case 11 and opens and closes the opening 111. The circulation path 72 circulates the water in the water tub 12. The door cleaning path 73 is configured using the same material as a part of the circulation path 72, and flushes the door 16 with water to clean the door 16.
[0035] According to this, by using common components for the components constituting the circulation path 72 and the door cleaning path 73, the internal structure of the washing machine 10 can be optimized, that is, the internal structure of the washing machine 10 can be made smaller than when the circulation path 72 and the door cleaning path 73 are individually constituted by separate components. In addition, the structure for discharging water to the door 16 can be made smaller. This allows the interior of the washing machine 10 to be saved in space, and as a result, the size of the washing machine 10 can be prevented from increasing. In addition, since there is no need to provide dedicated components for constituting each of the paths 72 and 73, the number of components can be reduced, thereby improving the ease of assembly.
[0036] Washing machine 10 further includes water tub cover 14 and water channel forming member 15. Water tub cover 14 is provided on the opening 111 side of water tub 12. Water channel forming member 15 covers a part of the surface of water tub cover 4 facing water tub 12, and forms a part of circulation path 72 and door cleaning path 73 between water tub cover 14 and water channel forming member 15.
[0037] According to this, water tub cover 14 can be effectively used as a component that configures circulation path 72 and door cleaning path 73. This makes it possible to reduce the number of components and minimize the deterioration of the assembly workability of washing machine 10.
[0038] Water tub cover 14 has wall portion 20. Wall portion 20 is formed to protrude from water tub cover 14 towards water channel forming member 15 and is covered by water channel forming member 15 to form the walls of circulation path 72 and door cleaning path 73. Accordingly, by covering wall portion 20 provided on water tub cover 14 with water channel forming member 15, circulation path 72 and door cleaning path 73 can be formed with a simple configuration.
[0039] Second embodiment The second embodiment will be described with reference to Fig. 8. In the second embodiment shown in Fig. 8, the configurations of water tub cover 14 and water channel forming member 15 differ from those of the first embodiment. Specifically, in the first embodiment, wall 20 is provided on rear surface 143 of water tub cover 14. Meanwhile, in this embodiment, the wall is provided on the front side of water channel forming member 15, that is, the surface on the water tub cover 14 side, rather than on water tub cover 14. That is, in this embodiment, instead of wall 20 in the first embodiment, water channel forming member 15 has wall 80 that is formed to protrude from water channel forming member 15 toward water tub cover 14 and is covered by water tub cover 14 to form the walls of circulation path 72 and door cleaning path 73.
[0040] In this case, the wall portion 80 has a first wall portion 81 and a second wall portion 82. The first wall portion 81 and the second wall portion 82 can be configured in the same shape as the first wall portion 21 and the second wall portion 22, respectively. Therefore, as shown in Fig. 8, the wall portion 80 of the water channel forming member 15 is covered by the rear surface 143 of the water tank cover 14 to form a space S, which can form the circulation path 72 and the door cleaning path 73. The wall portion 80 may be formed integrally with the water channel forming member 15, or may be a separate body.
[0041] According to the second embodiment, the circulation path 72 and the door cleaning path 73 can be configured with a simple structure by covering the wall 80 provided on the water channel forming member 15 with the water tank cover 14. Furthermore, since the water tank cover 14 is larger and has a complex structure compared to the water channel forming member 15, for example, when changing the shape of the wall 20, the workload is not small. Therefore, by providing the wall 80 on the water channel forming member 15 side, it is possible to easily and flexibly respond to changes in the shape of the wall 80, and thus to design changes in the circulation path 72 and the door cleaning path 73.
[0042] Third embodiment Next, a third embodiment will be described with reference to Figs. 9 and 10. In the third embodiment shown in Figs. 9 and 10, the water source used for door washing is different from that of each of the above-mentioned embodiments. In this embodiment, the washing machine 10 does not include the washing device 50 and the circulation discharge part 61, but as shown in Fig. 10, a water passing part 221 is formed in the second wall part 22. The water passing part 22 can be configured to be circular, for example, penetrating the second wall part 22 in the thickness direction. The water passing part 22 is for guiding a part of the water flowing through the circulation path 72 to the door washing path 73. That is, in this embodiment, the door washing path 73 can be configured as a part of the circulation path 72. And the door washing path 73 is a path for washing the window part 161 by passing a part of the water flowing through the circulation path 72 through the window part 161. The water passing part 22 may be one or more. In addition, the shape of the water passing part 22 is not limited to a circular shape, and may be a rectangular shape or an elliptical shape.
[0043] Even with this configuration, by using common components for the components constituting circulation path 72 and door cleaning path 73, it is possible to optimize the internal structure of washing machine 10, that is, to reduce the size of the internal structure of washing machine 10, compared to a case in which circulation path 72 and door cleaning path 73 are individually constituted with separate parts. Furthermore, by changing the shape of water passage part 22, it is possible to easily adjust the amount of water per unit time flowing through door cleaning path 73 of circulation path 72, so that it is possible to flexibly respond to design changes of door cleaning path 73.
[0044] The above-described embodiments can be combined with each other, or only the characteristic parts of two or more embodiments can be extracted and combined. The above-described embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention. These embodiments and their modifications are included in the scope and spirit of the invention, and are included in the scope of the invention and its equivalents described in the claims. [Explanation of symbols]
[0045] 10... washing machine, 11... outer box, 111... opening, 12... water tank, 14... water tank cover, 15... water channel forming member, 16... door, 20, 80... wall portion, 72... circulation path, 73... door cleaning path
Claims
1. An outer box having an opening communicating the inside and the outside; A water tank formed in a cylindrical shape with a bottom and provided in the outer box; a door provided on the outer box for opening and closing the opening; A circulation path for circulating water in the water tank; a cleaning path through which water is supplied from an external water source and through which the water supplied from the external water source flows to clean a portion including the inside of the door; A water tank cover provided on the opening side of the water tank; A water channel forming member that covers a part of the surface of the water tank cover facing the water tank and forms a part of the circulation path and the cleaning path between the water tank cover and the water tank cover. washing machine.
2. The outlet of the cleaning path is located forward of the end of the inner part of the door on the water tank side. The washing machine according to claim 1.
3. A wall portion is further provided to separate the circulation path and the cleaning path, The outlet of the circulation path and the outlet of the cleaning path are provided at positions that do not overlap with each other in the left-right direction of the water tank. The washing machine according to claim 1.
4. The water tank cover has a wall portion formed to protrude from the water tank cover toward the water channel forming member and covered by the water channel forming member to form a wall of the circulation path and the cleaning path. The washing machine according to claim 1.
5. The water channel forming member has a wall portion that is formed protruding from the water channel forming member toward the water tank cover and is covered by the water tank cover to form a wall of the circulation path and the cleaning path. The washing machine according to claim 1.
Citation Information
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