Outer barrel for clothes treating device and clothes treating device
By optimizing the barrel connection structure of the outer barrel, especially reducing the barrel wall thickness in the horizontal direction, the problem of limited outer barrel size is solved, larger washing space and higher rigidity are achieved, and the risk of welding overflow is reduced.
Patent Information
- Application Number
- CN202422260903.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-14
- Publication Date
- 2025-10-14
- Estimated Expiration
- 2034-09-14
AI Technical Summary
The size of the outer tub of an existing laundry processing device is limited by the size of the outer shell, making it difficult to provide a larger washing space in the horizontal direction.
By improving the connection structure between the first barrel body and the second barrel body of the outer barrel, especially reducing the barrel wall thickness in the horizontal direction, adopting coaxial connection and welding connection, eliminating some overflow ribs, optimizing the design of welding protrusions and overflow ribs, and reducing the radial width occupied by the welding connection.
Without increasing the size of the outer shell, the internal volume of the outer barrel is expanded, the washing space is increased, the rigidity and sealing of the outer barrel are enhanced, and the risk of welding overflow is reduced.
Smart Images
Figure CN223433659U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the field of laundry treatment devices, in particular to an outer tub for a laundry treatment device and a corresponding laundry treatment device. BACKGROUND
[0002] Laundry treatment devices, in particular washing machines, such as drum washing machines, generally comprise a housing, an outer tub mounted within the housing and an inner tub rotatably mounted within the outer tub. The inner tub is used to receive laundry to be treated and the outer tub forms a washing space. Generally, the laundry treatment capacity of a laundry treatment device can depend on the size of the outer tub providing the washing space, whereas the size of the outer tub, in particular the width of the outer tub, can be limited by the size of the housing. Therefore, it would be advantageous to provide an outer tub with a larger washing space for a specific housing size. SUMMARY
[0003] Therefore, it is an object of the present application to provide an improved outer tub which can particularly advantageously have a reduced thickness of the tub wall in the horizontal direction, such that the outer tub can have a larger washing space.
[0004] According to a first aspect of the present application, an outer tub for a laundry treatment device is provided, the outer tub having two end-side sections opposite in the horizontal direction, and the outer tub comprising a first tub body and a second tub body, wherein the first tub body and the second tub body are coupled coaxially to each other, the first tub body has a first tub wall and a first coupling portion extending radially outward from the first tub wall, the second tub body has a second tub wall and a second coupling portion extending radially outward from the second tub wall, the first coupling portion and the second coupling portion are at least partially connected to each other by welding, a radially inner side of the first tub wall and a radially inner side of the second tub wall are on the same circumference, and in the end-side sections, the first coupling portion and the second coupling portion extend to the same radially outer position in any radial direction.
[0005] According to an optional embodiment of the present application, in the end-side sections, the radial width of the first tub wall and the second tub wall is equal, and the radial width of the first coupling portion and the second coupling portion is equal.
[0006] According to an optional embodiment of the present application, in the end-side sections, the minimum radial width of the first coupling portion and the second coupling portion is greater than or equal to a minimum welding support width determined by a welding device.
[0007] According to an optional embodiment of the present application, in the end-side sections, the radial width of the first tub wall and the second tub wall is in the range of 2 mm to 3 mm.
[0008] According to an optional embodiment of the present application, in the end-side sections, the radial width of the first tub wall and the second tub wall is 3 mm.
[0009] According to one optional embodiment of the present application, in the end-side section, the minimum radial width of the first coupling portion and the second coupling portion is in the range of 4mm to 7mm.
[0010] According to one optional embodiment of the present application, in the end-side section, the minimum radial width of the first coupling portion and the second coupling portion is 4mm.
[0011] According to one optional embodiment of the present application, the first coupling portion has a welding protrusion adapted to be weldedly joined to the second coupling portion, the radial width of the welding protrusion is smaller than the radial width of the first coupling portion, and the radially outer portion of the welding protrusion forms an open outer flash groove.
[0012] According to one optional embodiment of the present application, the second barrel wall has a flash baffle protruding in the axial direction toward the first barrel wall, in the outer barrel, the flash baffle is in contact or engagement with the corresponding end face of the first barrel wall, and the flash baffle encloses the inner flash groove with the radially inner side of the welding protrusion.
[0013] According to one optional embodiment of the present application, the product of the difference in the axial length of the welding protrusion before and after welding and the radial width of the welding protrusion is less than or equal to the sum of the horizontal cross-sectional areas of the outer flash groove and the inner flash groove.
[0014] According to one optional embodiment of the present application, the radially inner side of the flash baffle is disposed on the circumference where the radially inner side of the first barrel wall is located.
[0015] According to one optional embodiment of the present application, the radial width of the flash baffle is in the range of 1mm to 2mm.
[0016] According to one optional embodiment of the present application, the radial width of the flash baffle is 1mm.
[0017] According to one optional embodiment of the present application, the radially inner side of the welding protrusion is disposed on the extension line of the virtual boundary of the first coupling portion and the first barrel wall.
[0018] According to one optional embodiment of the present application, the radial width of the welding protrusion is in the range of 2mm to 4mm.
[0019] According to one optional embodiment of the present application, the radial width of the welding protrusion is 3mm.
[0020] According to one optional embodiment of the present application, the welding depth of the welding protrusion and the second coupling portion is in the range of 1.5mm to 3.5mm.
[0021] According to one optional embodiment of the present application, the welding depth of the welding protrusion and the second coupling portion is 2mm.
[0022] According to an optional embodiment of the present application, in the lower end section of the outer tub, the first coupling portion further has an additional protrusion spaced apart from the welding protrusion in the radial direction, the additional protrusion being adapted to be weldedly joined to the second coupling portion, wherein the radial width of the welding protrusion in the lower end section is smaller than the radial width of the welding protrusion in the end side section, but the sum of the radial widths of the welding protrusion and the additional protrusion in the lower end section is greater than the radial width of the welding protrusion in the end side section.
[0023] According to an optional embodiment of the present application, in the lower end section, the radial width of the welding protrusion is 2 mm, and the radial width of the additional protrusion is 2 mm.
[0024] According to an optional embodiment of the present application, in the lower end section, the spaced-apart welding protrusion and additional protrusion form an intermediate flash groove between each other, wherein the product of the difference in axial length of the welding protrusion before and after welding and the radial width of the welding protrusion and the corresponding product of the additional protrusion is less than or equal to the sum of the horizontal cross-sectional areas of the outer flash groove, the inner flash groove, and the intermediate flash groove.
[0025] According to a second aspect of the present application, there is provided a laundry treating apparatus including the outer tub according to any one of the present application.
[0026] According to an optional embodiment of the present application, the laundry treating apparatus is a drum-type laundry treating apparatus.
[0027] According to an optional embodiment of the present application, the laundry treating apparatus is a washing machine or a washer-dryer.
[0028] According to the present application, by adjusting or improving the profile of the respective end portions of the first tub body and the second tub body for mutual coupling in the existing outer tub, an improved outer tub having a reduced thickness of the tub wall, particularly in the horizontal direction, is achieved, thereby enabling the outer tub to have a larger washing space.
[0029] It is to be understood that the advantages and benefits of the present application are not limited to those mentioned above, and other advantages and benefits of the present application which are not mentioned herein will be understood by those skilled in the art from the following detailed description and claims. BRIEF DESCRIPTION OF DRAWINGS
[0030] The principles, features, and advantages of the present application can be better understood by the following detailed description taken in connection with the accompanying drawings, in which:
[0031] Figure 1 a perspective view of an outer tub according to an exemplary embodiment of the present application is shown;
[0032] Figure 2 a front view of the outer tub of Figure 1 is shown;
[0033] Figure 3 An enlarged view of the coupling area of the first tub body to the second tub body in the end side section of the outer tub of the prior art is shown;
[0034] Figure 4 A schematic view of the coupling area of the first tub body to the second tub body in the end side section of the outer tub according to one exemplary embodiment of the present application is shown;
[0035] Figure 5 To illustrate Figure 4 A view of the dimensions of the relevant components in the coupling area shown in Fig. 1;
[0036] Figure 6 A schematic view of the part of the first tub body of the outer tub for coupling according to one exemplary embodiment of the present application is shown; and
[0037] Figure 7 A schematic view of the part of the first tub body for coupling in the lower end section of the outer tub according to one exemplary embodiment of the present application is shown.
[0038] List of reference signs
[0039] 100 outer tub
[0040] 101 upper end section
[0041] 102 lower end section
[0042] 103, 104 end side section
[0043] 1 first tub body
[0044] 2 second tub body
[0045] 3 opening
[0046] 11 first tub wall
[0047] 12 first coupling portion
[0048] 121 welding protrusion
[0049] 122 additional protrusion
[0050] 123 outer flash groove
[0051] 124 inner flash groove
[0052] 21 second tub wall
[0053] 22 second coupling portion
[0054] 211 overflow stop
[0055] D1 radial direction
[0056] D2 Axial direction
[0057] L The extension line of the virtual boundary between the first connecting portion and the first barrel wall
[0058] W1 Radial width of the first barrel wall or the second barrel wall
[0059] W2 Radial width of the first coupling portion or the second coupling portion
[0060] W3 radial width of the weld protrusion
[0061] W4 Welding depth between welding protrusion and second connecting part
[0062] W5 radial width of overflow rib DETAILED DESCRIPTION
[0063] In order to make the technical problems, technical solutions, and beneficial technical effects to be solved by this application more clearly understood, this application will be further described in detail below with reference to the accompanying drawings and multiple exemplary embodiments. It should be understood that the specific embodiments described herein are only used to explain the principles of this application and are not intended to limit the scope of protection of this application. In the various drawings of this application, features with the same structure or similar functions are represented by the same reference numerals.
[0064] A first aspect of the present application relates to an outer tub for a laundry treatment device. Figure 1 and Figure 2 1 and 2 show a perspective view and a front view of an outer barrel 100 according to an exemplary embodiment of the present application. Figure 1 and Figure 2 As shown, the outer tub 100 has an upper end section 101 and a lower end section 102 opposite to each other in the vertical direction, and the outer tub 100 also has two end side sections 103 and 104 opposite to each other in the horizontal direction, such as the left end side section 103 and the right end side section 104 shown.
[0065] It should be understood here that in this article, terms indicating directions or positional relationships such as "up", "down", "inside", "outside", "front", "back", "left", and "right" are used to illustrate the positional relationships of the corresponding components with reference to the accompanying drawings based on the orientation of the outer drum installed in the clothing processing device. They are only for the convenience of describing this specification and simplifying the description, and do not indicate or imply that the corresponding components have a specific direction, are constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on this application.
[0066] In addition, it should be understood that the upper end segment, lower end segment, and end side segment are divided for the purpose of convenience of description. They can be connected to form a complete circumference, or alternatively, they can be sub-segments of connected segments, or any combination thereof. For example, the end side segment is a segment that includes the points corresponding to 3 o'clock and 9 o'clock on the circumference of the outer barrel 100, respectively; the upper end segment is a segment that includes the point corresponding to 12 o'clock on the circumference of the outer barrel 100; and the lower end segment is a segment that includes the point corresponding to 6 o'clock on the circumference of the outer barrel 100.
[0067] Compared to the vertical dimension of the outer tub 100 (i.e., the distance between 12 and 6 o'clock), the horizontal dimension of the outer tub 100 (i.e., the distance between 3 and 9 o'clock) is more significantly limited by the outer shell size of the laundry treatment device. Therefore, to further expand the size of the outer tub 100 within the limited outer shell size, it is necessary to optimize the total wall thickness of the outer tub 100 (i.e., the distance between the radial inner side and the radial outer side of the outer tub 100), especially the total wall thickness in the horizontal direction.
[0068] like Figure 1 and Figure 2 As shown, the outer tub 100 may generally include a first tub body 1 and a second tub body 2. As shown, the first tub body 1 may be, for example, a front tub, and the second tub body 2 may be, for example, a rear tub. The outer tub 100 or the first tub body 1 has a front opening 3, through which the washing space defined by the outer tub 100 can be entered. In order to form the outer tub 100, the first tub body 1 and the second tub body 2 may be coaxially coupled to each other. That is, the central axes of the first tub body 1 and the second tub body 2 are the same and constitute the central axis D2 of the outer tub 100.
[0069] The first barrel body 1 has a first barrel wall 11 , and the second barrel body 2 has a second barrel wall 21 . Figure 3 Shown in the prior art outer barrel with Figure 2 A view of a cross section corresponding to the cross section taken along the line AA marked in FIG, and an enlarged view of the connection area between the first barrel and the second barrel (ie, the marked area B). Figure 4 Shows the outer barrel according to the present application Figure 3 The connection area corresponds to the connection area shown. Figure 3 and Figure 4 In the present invention, similar components or parts are marked with similar reference numerals.
[0070] like Figure 3As shown, in the prior art, the first barrel body 1' has a first barrel wall 11' and a first connecting portion 12' extending radially outward from the first barrel wall 11' (i.e., along the radial direction D1). The second barrel body 2' has a second connecting portion 22' extending radially outward from the second barrel wall 21'. The first barrel wall 11' is welded to the second connecting portion 22' to form a welding area ( Figure 3 ) to achieve the mutual welding connection of the first barrel body 1' and the second barrel body 2'. In addition, the second barrel body 2' further has a first overflow prevention rib 211' located on the radial inner side and extending axially outward from the second barrel wall 21', and a second overflow prevention rib 212' located on the radial outer side and extending axially outward from the second connecting portion 22'. The first overflow prevention rib 211' and the second overflow prevention rib 212' extend in the same direction and are used to block the outflow of overflow generated by the welding process in the radial direction during welding to prevent the formation of radial protrusions.
[0071] exist Figure 3 In the conventional outer barrel shown, the total wall thickness of the outer barrel, that is, the radial distance from the radially inner side of the second barrel wall 21' to the radially outer side of the first connecting portion 12', is equal to the wall thickness of the second barrel body 2' itself. In addition, in order to implement welding, the first connecting portion 12' and the second connecting portion 22' need to provide opposing welding support surfaces to support the welding equipment. Therefore, the minimum radial width of the first connecting portion 12' and the second connecting portion 22' needs to be at least equal to the minimum welding support width of the welding equipment. In this case, the wall thickness of the second barrel body 2' is at least equal to the sum of the minimum welding support width, the radial width of the first barrel wall 11', and the radial width of the second barrel wall 21'.
[0072] Different from the prior art, the present application proposes an improved end profile at the connection area of the first barrel body and the second barrel body, especially in the end side sections 103 and 104, which reduces the minimum total wall thickness of the outer barrel, thereby allowing the outer barrel to have a larger internal volume.
[0073] like Figure 4 As shown, in the outer barrel 100 according to the present application, the first barrel body 1 has a first barrel wall 11 and a first coupling portion 12 extending radially outward from the first barrel wall 11, and the second barrel body 2 has a second barrel wall 21 and a second coupling portion 22 extending radially outward from the second barrel wall 21, and the first coupling portion 12 and the second coupling portion 22 are at least partially welded to each other. In particular, the radial inner side of the first barrel wall 11 and the radial inner side of the second barrel wall 21 are on the same circumference, and in the end side sections 103 and 104, the first coupling portion 12 and the second coupling portion 22 extend to the same radial outer position in any radial direction D1.
[0074] Thus, in the end-side sections 103, 104, the total wall thickness of the outer tub 100 is equal to the wall thickness of the first tub body 1 and also equal to the wall thickness of the second tub body 2. That is, the projection of the wall thickness area of the first tub body 1 and the wall thickness area of the second tub body 2 in the axial direction D2 substantially completely overlap, reducing the radial width that the first and second coupling portions 12, 22 need to occupy for the welded connection, and in turn reducing the total wall thickness of the outer tub 100.
[0075] In the illustrated embodiment, preferably, in the end-side sections 103, 104, the radial width W1 of the first and second tub walls 11, 21 is equal, and the radial width W2 of the first and second coupling portions 12, 22 is equal. Thus, it is possible to allow a further reduction in the wall thickness of the first and second tub bodies 1, 2.
[0076] Further, in the end-side sections 103, 104, the minimum radial width W2 of the first and second coupling portions 12, 22 is greater than or preferably equal to the minimum welding support width determined by the welding equipment. When the radial width W2 of the first and second coupling portions 12, 22 is equal to the minimum welding support width determined by the welding equipment, the wall thickness of the first and second tub bodies 1, 2 reaches a minimum value. In one example, the minimum welding support width can be 4 mm.
[0077] Optionally, in the end-side sections 103, 104, the radial width W1 of the first and second tub walls 11, 21 can be in the range of 2 mm to 3 mm, which can be set specifically according to the material of the outer tub. In one preferred example, in the end-side sections 103, 104, the radial width W1 of the first and second tub walls 11, 21 can be 3 mm.
[0078] Additionally or alternatively, in the end-side sections 103, 104, the minimum radial width W2 of the first and second coupling portions 12, 22 can be in the range of 4 mm to 7 mm. In one preferred example, in the end-side sections 103, 104, the minimum radial width W2 of the first and second coupling portions 12, 22 can be 4 mm.
[0079] In the case where the radial width W1 of the first and second tub walls 11, 21 is 3 mm and the minimum welding support width is 4 mm, the minimum total wall thickness of the outer tub in the prior art will be at least equal to 10 mm. According to the outer tub 100 of the present application, the minimum total wall thickness on one side can be reduced to 7 mm. Thus, compared to the prior art, the solution of the present application can reduce the minimum total wall thickness of the outer tub while providing the same minimum welding support width, for example, by 3 mm in this example, so that the overall inner diameter of the outer tub is increased by 6 mm, which will further enable an increase of about 1.85 L of internal volume of the outer tub in a standard housing.
[0080] Optionally, in the end sections 103 and 104, the radially outer sides of the first and second coupling portions 12 and 22 extend vertically, i.e., extend straight up and down. This helps to minimize the total wall thickness of the outer tub 100 in the horizontal direction (i.e., in the diameter direction passing through the 3 o'clock and 9 o'clock positions) while increasing the strength of the end sections 103 and 104.
[0081] like Figures 4 to 6 As shown, the first connecting portion 12 has a welding protrusion 121, which is suitable for welding to the second connecting portion 22. The radial width W3 of the welding protrusion 121 is smaller than the radial width W2 of the first connecting portion 12, and an open overflow groove 123 is formed on the radial outer side of the welding protrusion 121 (i.e., between the radial outer side of the welding protrusion 121 and the radial outer end of the first connecting portion 12 / the second connecting portion 22). Figure 3 The outer barrel 100 of the present application eliminates the second overflow prevention rib 212' located radially outward from the prior art outer barrel shown, thereby eliminating the width occupied by the second overflow prevention rib 212' in the radial direction of the second connecting portion 22' or the second barrel body 2', which helps reduce the overall wall thickness of the outer barrel 100. Even if welding flash forms a radial protrusion on the radial outside of the outer barrel 100, it can be easily removed after the welding process is completed.
[0082] The second barrel wall 21 has an overflow prevention rib 211 protruding toward the first barrel wall 11 in the axial direction D2. In the outer barrel 100, the overflow prevention rib 211 contacts or engages with the corresponding end face of the first barrel wall 11, and the overflow prevention rib 211 and the radial inner side of the welding protrusion 121 enclose an inner overflow groove 124.
[0083] The outer overflow groove 123 and the inner overflow groove 124 may receive welding flash from the welding protrusion 121 and the second coupling portion 22 in two opposite directions during the welding process.
[0084] In such Figure 3 In the prior art tub shown, the first spill-stop rib 211' is closer to the tub's central axis D2 than the first tub wall 11'. In some cases, welding spills may overflow from the end of the first spill-stop rib 211' and reach the radially inner side of the first spill-stop rib 211'. Spills that reach the radially inner side of the first spill-stop rib 211' are difficult to remove in subsequent processes and may fall during use of the tub or the laundry treatment device.
[0085] In the outer barrel according to the present application, if Figure 4As shown, the radial inner side of the overflow rib 211 is preferably arranged on the circumference of the radial inner side of the first barrel wall 11. Thus, the overflow rib 211 can form a (sealed) space with the welding protrusion 121 to prevent the welding overflow from forming a protrusion radially protruding from the radial inner side of the second barrel wall 21 and scraping the rotating inner barrel, thereby avoiding the following problems: Figure 3 This risk of scratching exists in the outer barrel of the prior art shown.
[0086] Optionally, the radial width W5 of the overflow prevention rib 211 may be in the range of 1 mm to 2 mm. In a preferred example, the radial width W5 of the overflow prevention rib 211 may be 1 mm.
[0087] Figure 6 A portion of the first barrel body 1 of the outer barrel 100 according to the present application is shown separately. Figure 6 As shown, the radial inner side of the welding protrusion 121 (ie Figure 6 The left side of the welding protrusion 121 in the figure is arranged on the extension line L of the virtual boundary between the first connecting portion 12 and the first barrel wall 11. In this way, the welding protrusion 121 and the second connecting portion 22 can extend outward along the radial direction D1 from the same radial position, which is more conducive to the welding equipment acting on the welding protrusion at the second connecting portion.
[0088] The radial width W3 of the weld protrusion 121 may be in the range of 2 mm to 4 mm. In a preferred example, the radial width W3 of the weld protrusion 121 may be 3 mm. Additionally or alternatively, the weld depth W4 between the weld protrusion 121 and the second coupling portion 22 may be in the range of 1.5 mm to 3.5 mm. In a preferred example, the weld depth W4 between the weld protrusion 121 and the second coupling portion 22 may be 2 mm. In another preferred example, the weld depth W4 between the weld protrusion 121 and the second coupling portion 22 accounts for 50% of the entire axial length of the second coupling portion 22.
[0089] Preferably, the product of the difference in axial length of the welding protrusion 121 before and after welding and the radial width W3 of the welding protrusion 121 is less than or equal to the sum of the horizontal cross-sectional areas of the outer overflow groove 123 and the inner overflow groove 124. During welding, the axial length of the welding protrusion 121 decreases due to the engagement with the second coupling portion 22, and thus a difference in axial length before and after welding is formed. The corresponding portion corresponds to the overflow generated. The product of the above difference and the radial width W3 of the welding protrusion 121 represents the overflow volume that needs to be accommodated by the overflow grooves, in consideration of the uniformity of the vertical height, and in some cases the product is less than or equal to the sum of the horizontal cross-sectional areas of the outer overflow groove 123 and the inner overflow groove 124. That is, the volumes of the outer overflow groove 123 and the inner overflow groove 124 can be sufficient to accommodate the overflow. Here, at least one of the outer overflow groove 123 and the inner overflow groove 124 can be completely filled with the overflow, or can be partially filled with the overflow. Here, the horizontal cross-section can refer to a cross-section extending in the horizontal direction and containing a straight line along which the diameters from 3 o'clock to 9 o'clock lie.
[0090] For example, in one embodiment, the welding depth W4 is 2 mm, the difference in axial length of the corresponding welding protrusion 121 before and after welding is 2 mm, the remaining axial length of the welding protrusion 121 after welding is also 2 mm, and the radial width W3 of the welding protrusion 121 is 3 mm. In this case, the radial width of the outer overflow groove 123 can be 1 mm, and the radial width of the inner overflow groove 124 can be 2 mm. The above description is directed to the coupling structure of the first tub body 1 and the second tub body 2 in the end side sections 103, 104 of the outer tub 100, mainly because the total wall thickness of the outer tub 100 in the end side sections 103, 104, especially in the diametrical direction passing through 3 o'clock and 9 o'clock, is more demanding in the case of a specific outer shell, while the outer tub can have the same or greater total wall thickness in the upper end section 101 and the lower end section 102 of the outer tub 100. The features described above can also be additionally applied to the upper end section 101 and the lower end section 102 of the outer tub 100.
[0091] In addition, the first coupling portion 12 and the second coupling portion 22 extend less outward in the radial direction D1 in the end side sections 103, 104 than in the upper end section 101 and the lower end section 102. This is because the thicker total wall thickness of the outer tub in the upper end section 101 and the lower end section 102 can help to improve the coupling strength against the gravity of the outer tub.
[0092] In particular, since the water pressure is greater at the lower part of the outer tub 100, a double-layer welding can be used in the lower end section 102, i.e., as shown in FIG. 6B, the welding protrusion 121 can be formed in the first coupling portion 12 and the second coupling portion 22, and the welding protrusion 121 can be formed in the first tub body 1 and the second tub body 2. Figure 7The structure of the portion for connection of the first barrel body 1 shown. As shown in the figure, in the lower end section 102, the first connection part 12 also has an additional protrusion 122 spaced apart from the welding protrusion 121 in the radial direction D1, and the additional protrusion 122 is suitable for being welded to the second connection part 22. Here, the additional protrusion 122 has the same or different radial width as the welding protrusion 121. In particular, the welding protrusion 121 in the lower end section 102 is smaller than the radial width of the welding protrusion 121 in the end side sections 103 and 104, but the sum of the radial widths of the welding protrusion 121 and the additional protrusion 122 in the lower end section 102 is greater than the radial width of the welding protrusion 121 in the end side sections 103 and 104. Specifically, as Figure 7 As shown, the radial width of welding protrusion 121 is 2 mm, and the radial width of additional protrusion 122 is 2 mm. After welding, the spaced-apart additional protrusion 122 and welding protrusion 121 form a central overflow groove between them. At this time, the sum of the product of the difference in axial length of welding protrusion 121 before and after welding and the radial width W3 of welding protrusion 121, and the corresponding product of additional protrusion 122 (i.e., the product of the difference in axial length of additional protrusion 122 before and after welding and the radial width of additional protrusion 122) is less than or equal to the sum of the horizontal cross-sectional areas of the outer overflow groove 123, the inner overflow groove 124, and the central overflow groove. For example, in one embodiment, the difference in axial length between the welding protrusion 121 and the additional protrusion 122 before and after welding is 2 mm. The axial lengths of the remaining portions of the welding protrusion 121 and the additional protrusion 122 after welding are also 2 mm. The radial widths of the welding protrusion 121 and the additional protrusion 122 are both 2 mm. In this case, the radial width of the outer overflow groove 123 can be 1 mm, the radial width of the inner overflow groove 124 can be 2 mm, and the radial width of the middle overflow groove can be 2 mm. In this case, the radial width W2 of the first connecting portion 12 and the second connecting portion 22 can be at least 7 mm. Furthermore, in this example, the combined radial width of the weld protrusion 121 and the additional protrusion 122 in the lower end section 102 is 4 mm, which is 3 mm greater than the radial width of the weld protrusion 121 in the end sections 103 and 104 described above. This increased radial width not only helps provide greater connection strength, but also allows the two spaced-apart protrusions 121 and 122 to have greater torsional resistance than a single protrusion of the same radial width (e.g., 4 mm), thereby enhancing the rigidity of the outer barrel 100. Therefore, the combined use of the weld protrusion 121 and the additional protrusion 122 is more advantageous for the lower end section 102, which is subject to greater stress and has higher sealing requirements. The additional protrusion 122 can also be applied to the upper end section 101. Similar to the end sections 103 and 104, the radially outer sides of the first and second coupling portions 12 and 22 in the upper and lower end sections 101 and 102, respectively, can extend along the same circumference.
[0093] In the present application, the first barrel body 1 and the second barrel body 2 can be welded by a welding process such as friction welding (also known as vibration welding) to achieve airtightness, including airtightness and liquidtightness. This welding connection method is superior to the connection method of sealing ring combined with screw fastening used in some existing technologies.
[0094] A second aspect of the present application relates to a clothes treating device comprising any outer tub according to the present application.
[0095] Here, the laundry processing device according to the present application may be a drum laundry processing device. Additionally or alternatively, the laundry processing device according to the present application is a washing machine or a washer-dryer. For example, the laundry processing device according to the present application is a drum washing machine or a drum washer-dryer.
[0096] It is worth noting that all individual values and range endpoints mentioned herein may include the value itself as well as values within an acceptable deviation range of the value determined by a person skilled in the art, such as due to measurement error or processing error. For example, a single value (or range endpoint) mentioned herein may be expressed as being within one or more standard deviations of the value, or within ±50%, ±40%, ±30%, ±20%, ±10%, or ±5% of the value.
[0097] It should be understood that, in this document, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance, nor as implicitly specifying the quantity of the technical features being referenced. A feature specified as "first" or "second" may explicitly or implicitly indicate that at least one of the features is included.
[0098] In addition, in the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.
Claims
1. An outer barrel (100) for a clothes processing device, characterized in that: The outer barrel (100) has two end side sections (103, 104) opposite to each other in the horizontal direction, and The outer barrel (100) comprises a first barrel body (1) and a second barrel body (2), wherein the first barrel body (1) and the second barrel body (2) are coaxially connected to each other. The first barrel body (1) comprises a first barrel wall (11) and a first connecting portion (12) extending radially outward from the first barrel wall (11); the second barrel body (2) comprises a second barrel wall (21) and a second connecting portion (22) extending radially outward from the second barrel wall (21); the first connecting portion (12) and the second connecting portion (22) are at least partially welded to each other. The radial inner side of the first barrel wall (11) and the radial inner side of the second barrel wall (21) are on the same circumference, and In the end side sections (103, 104), the first coupling portion (12) and the second coupling portion (22) extend to the same radially outer position in any radial direction (D1).
2. The outer tub (100) for a clothes treating device according to claim 1, characterized in that: In the end side sections (103, 104), the radial widths of the first barrel wall (11) and the second barrel wall (21) are equal, and the radial widths of the first connecting portion (12) and the second connecting portion (22) are equal.
3. The outer tub (100) for a clothes treating device according to claim 2, characterized in that: In the end sections (103, 104), the minimum radial width of the first connecting portion (12) and the second connecting portion (22) is greater than or equal to the minimum welding support width determined by the welding equipment.
4. The outer tub (100) for a clothes treating device according to claim 3, characterized in that: In the end sections (103, 104), the radial width of the first barrel wall (11) and the second barrel wall (21) is in the range of 2 mm to 3 mm; and / or In the end sections (103, 104), the minimum radial width of the first coupling portion (12) and the second coupling portion (22) is in the range of 4 mm to 7 mm.
5. The outer tub (100) for a clothes treating device according to claim 4, characterized in that: In the end sections (103, 104), the radial width of the first barrel wall (11) and the second barrel wall (21) is 3 mm; and / or In the end sections (103, 104), the minimum radial width of the first connecting portion (12) and the second connecting portion (22) is 4 mm.
6. The outer tub (100) for a laundry treatment device according to any one of claims 1 to 5, characterized in that: The first connecting portion (12) has a welding protrusion (121), which is suitable for being welded to the second connecting portion (22), the radial width of the welding protrusion (121) is smaller than the radial width of the first connecting portion (12), and the radial outside of the welding protrusion (121) forms an open overflow groove (123).
7. The outer tub (100) for a clothes treating device according to claim 6, characterized in that: The second barrel wall (21) has a spill-proof rib (211) protruding in the axial direction (D2) toward the first barrel wall (11); in the outer barrel (100), the spill-proof rib (211) contacts or engages with the corresponding end surface of the first barrel wall (11), and the spill-proof rib (211) and the radial inner side of the welding protrusion (121) enclose an inner spill groove (124).
8. The outer tub (100) for a clothes treating device according to claim 7, characterized in that: The product of the difference in axial length of the welding protrusion (121) before and after welding and the radial width of the welding protrusion (121) is less than or equal to the sum of the horizontal cross-sectional areas of the outer overflow groove (123) and the inner overflow groove (124).
9. The outer tub (100) for a clothes treating device according to claim 7 or 8, characterized in that: The radial inner side of the overflow prevention rib (211) is arranged on the circumference of the radial inner side of the first barrel wall (11); and / or The radial width of the overflow prevention rib (211) is in the range of 1 mm to 2 mm.
10. The outer tub (100) for a clothes treating device according to claim 9, characterized in that: The radial width of the overflow prevention rib (211) is 1 mm.
11. The outer tub (100) for a clothes treating device according to claim 6, characterized in that: The radial inner side of the welding protrusion (121) is arranged on an extension line (L) of a virtual boundary between the first connecting portion (12) and the first barrel wall (11).
12. The outer tub (100) for a clothes treating device according to claim 6, characterized in that: The radial width of the welding protrusion (121) is in the range of 2 mm to 4 mm; and / or The welding depth (W4) between the welding protrusion (121) and the second connecting portion (22) is within the range of 1.5 mm to 3.5 mm; and / or In the lower end section (102) of the outer barrel (100), the first connecting portion (12) further has an additional protrusion (122) spaced apart from the welding protrusion (121) in the radial direction (D1), and the additional protrusion (122) is suitable for being welded to the second connecting portion (22), wherein the welding protrusion (121) in the lower end section (102) is smaller than the radial width of the welding protrusion (121) in the end side sections (103, 104), but the sum of the radial widths of the welding protrusion (121) and the additional protrusion (122) in the lower end section (102) is greater than the radial width of the welding protrusion (121) in the end side sections (103, 104).
13. The outer tub (100) for a clothes treating device according to claim 12, characterized in that: In the end sections (103, 104), the radial width of the welding projection (121) is 3 mm; and / or The welding depth (W4) between the welding protrusion (121) and the second connecting portion (22) is 2 mm; and / or In the lower end section (102), the radial width of the welding protrusion (121) is 2 mm, and the radial width of the additional protrusion (122) is 2 mm; and / or In the lower end section (102), the spaced-apart welding protrusions (121) and the additional protrusions (122) form an intermediate overflow groove between each other, wherein the sum of the product of the difference in axial length of the welding protrusion (121) before and after welding and the radial width of the welding protrusion (121) and the corresponding product of the additional protrusion (122) is less than or equal to the sum of the horizontal cross-sectional areas of the outer overflow groove (123), the inner overflow groove (124) and the intermediate overflow groove.
14. A clothes processing device, characterized in that: The laundry treating apparatus comprises an outer tub (100) according to any one of claims 1 to 13.
15. The clothes treating device according to claim 14, characterized in that: The laundry processing device is a drum type laundry processing device; and / or The clothing processing device is a washing machine or a washer-dryer.