A dishwasher inner tub and a welding method thereof

Abstract

The application discloses a dishwasher inner container and a welding method thereof, and the inner container comprises an inner container body formed by splicing a plurality of splicing components, two adjacent splicing components are welded and fixed through a flange structure at a splicing position, and the flange structures of the two adjacent splicing components are welded by adopting a sectional interval skip welding method. The flange structures of the two adjacent splicing components are welded by adopting the sectional interval skip welding method, welding is performed twice, welding is performed at equal intervals from one end to the other end in the first welding, and the welds of the interval parts remaining in the first welding are supplemented in the second welding. The clearance at the welds can be eliminated by twice sectional welding, the welding strength and the weld sealing property are increased, the deformation rate of the long weld is reduced, and the flatness of the matching surface is ensured to be good.

Description

Technical Field

[0001] This invention relates to the field of dishwasher technology, and in particular to a dishwasher inner liner and its welding method. Background Technology

[0002] In existing dishwashers, stainless steel inner tanks are typically manufactured using a one-piece stretching process. Structurally, this one-piece stretching method results in poor consistency in the stretched structure, and some rounded corners are prone to deformation. From a material processing perspective, the thickness of the stainless steel stretched inner tank material is related to the stretching depth; the deeper the stretch, the thicker the material is required. Furthermore, stretching can lead to uneven inner tank wall thickness, and deep stretching is difficult and inefficient.

[0003] The invention patent with application number 201711316395.6 discloses a novel dishwasher inner liner and its manufacturing process. The first component is composed of an inner liner bottom plate and any two opposite side plates, which are arranged opposite each other and distributed at both ends of the inner liner bottom plate. The first component has a U-shaped cross-section. The remaining two side plates form a second component, which is composed of two opposite side plates that are not connected to each other. The distance between the two side plates is the same as the width of the bottom plate. Flanges are provided on the bottom plate and the side plates connected to the bottom plate. The flanges include a longitudinal flange on the bottom plate and a transverse flange on the side plates. The first component and the second component are connected together by welding or other means by means of the longitudinal flange and the transverse flange.

[0004] The proposed application uses an assembly process to produce the inner liner, which accelerates the sheet metal forming speed and avoids the excessive stretching of traditional inner liners, reducing waste caused by overstretching and saving costs. However, the dishwasher inner liner disclosed in this application involves welding the U-shell and side panels directly at the mating surfaces. The weld seams are visible to the user. Due to the complex washing environment inside the dishwasher, such as high temperature and humidity, grease, and various acidic food additives, visible corrosion appears at the weld seams after a period of use, causing serious user complaints. Furthermore, welding starts directly from one end of the mating surface between the U-shell and side panels and continues to the other end in one go. Due to the large size and high flatness requirements, this not only leads to deformation and uneven weld seams but also poor weld quality and sealing. Poor sealing of the mating surfaces causes air and water leakage during dishwasher operation, severely affecting the washing effect.

[0005] In view of this, the present invention is hereby proposed. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a dishwasher inner liner and its welding method. The method adopts a two-stage, one-line segmented welding method with equal spacing. The welding method is precise, which can not only ensure the flatness of the mating surfaces, but also improve the sealing performance of the weld. Moreover, the weld is located on the flange structure at a certain distance from the inner splice joint of the two splicing parts, which effectively improves the problems of weld corrosion and easy rusting of the inner liner. There are also fewer visible welds on the inner liner, and the appearance quality of the inner liner is easy to control.

[0007] To achieve this objective, according to one aspect of the present invention, the present invention adopts the following technical solution:

[0008] A welding method for a dishwasher inner liner, the inner liner comprising an inner liner body formed by splicing multiple splicing components, wherein two adjacent splicing components are welded and fixed by a flange structure at the splicing position, and the flange structure of two adjacent splicing components is welded by a segmented interval skip welding method.

[0009] Furthermore, each set of flange structures has at least one weld, and each weld is welded in two stages. In the first welding, the flange structure is welded in segments from one end to the other. In the second welding, the welds of the remaining intervals in the first welding are filled in.

[0010] Furthermore, in the first welding, segmented equal-interval straight-line welding is adopted. Along the length direction of the flange structure, the weld of the flange structure is divided into several straight segments of equal length at equal intervals. In the first welding, the welds of the straight segments are welded in sequence. In the second welding, the welds between two adjacent straight segments are filled in.

[0011] Furthermore, along the length direction of the flange structure, several welding points are arranged in a straight line at equal intervals on the flange structure. The distance between each pair of welding points is the same, and the interval weld between two adjacent pairs of welding points is the same. In the first welding, the weld between each pair of welding points is welded in sequence, and in the second welding, the interval weld between two adjacent pairs of welding points is welded in sequence.

[0012] Furthermore, the distance between each pair of solder joints is d1, and the gap between two adjacent pairs of solder joints is d2, where d1 = d2.

[0013] Furthermore, the flange structures of two adjacent splicing components are connected to each other by laser welding, with the weld located in the middle of the flange structure.

[0014] Furthermore, the distance between the weld seam on the flange structure and the inner splice seam of the two splicing components is d, where d ≥ 2 mm.

[0015] Furthermore, the welding method includes the following steps:

[0016] S1: Different splicing components of the inner liner are manufactured by cutting and / or stamping and / or bending processes;

[0017] S2: Create a flange structure on the splicing edge of two adjacent splicing parts by bending and / or stretching, align the flange structures of the two adjacent splicing parts, and clamp them with a fixture;

[0018] S3: The weld is located on the flange structure at a distance d from the inner splice joint of the two splicing components, where d ≥ 2mm. Welding is carried out from one end of the flange structure to the other using a segmented interval skip welding method.

[0019] S4: Divide the weld of the flange structure to be welded into several segments of equal length, number the segments in sequence, and divide the weld of the flange structure into odd-numbered segments and even-numbered segments. First, weld the odd-numbered segments in sequence.

[0020] S5: Perform post-weld heat treatment on the odd-numbered weld seams in sequence, and simultaneously weld the weld seams of the adjacent even-numbered weld seams in sequence.

[0021] S6: Finally, the weld seams of even-numbered segments are subjected to post-weld heat treatment in sequence.

[0022] Another object of the present invention is to provide a dishwasher inner liner employing any of the above-described welding methods, wherein the splicing component includes:

[0023] The first splicing component includes a base plate formed by bending a single sheet and two first side plates located on opposite sides of the base plate;

[0024] The second and third splicing components are two second side plates disposed on both sides of the first splicing component;

[0025] The two sides of the base plate are bent outward to form a first flange, and the lower edges of the two second side plates are bent downward to form a second flange. The first flange and the second flange are welded together and fixed.

[0026] The two sides of the first side plates are bent outward to form a third flange, and the two sides of the second side plates are bent outward to form a fourth flange. The third flange and the fourth flange are welded together and fixed.

[0027] Furthermore, the flange structure is provided with an assembly structure for supporting assembly, the assembly structure including an assembly hole provided on the flange structure.

[0028] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0029] 1. The welding method for the inner liner of a dishwasher provided by the present invention involves welding the flange structure of two adjacent splicing parts using a segmented interval skip welding method. The welding is performed in two stages. In the first welding, the welds are made in segments with equal intervals from one end to the other. In the second welding, the welds of the remaining intervals from the first welding are filled in. By performing the two-stage segmented welding, the gaps at the welds can be eliminated, the welding strength and weld sealing performance can be increased, the deformation rate of long welds can be reduced, and the flatness of the mating surfaces can be guaranteed.

[0030] 2. The welding method for the dishwasher inner liner provided by the present invention has the weld located on the flange structure, and the distance between the weld and the inner splice seam of the two splicing parts is not less than 2mm. During the use of the inner liner, the weld is effectively prevented from contacting water, which causes weld corrosion and rusting of the inner liner, thus improving the user experience. In addition, the weld is not visible from the inside of the inner liner, which can improve the aesthetics of the inner liner.

[0031] 3. The dishwasher inner liner provided by this invention is formed by splicing multiple components. Adjacent splicing components are connected by a flange structure at the splicing position. The flange structure is provided with an assembly structure for supporting assembly. By fully utilizing the structure of the flange itself, the flange structure not only connects and fixes the various splicing components of the inner liner body, but also supports the assembly of other dishwasher components, making the inner liner easier to assemble with other components and improving the overall structural stability. Attached Figure Description

[0032] The accompanying drawings, as part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments and descriptions of the invention are used to explain the invention, but do not constitute an undue limitation of the invention. Obviously, the drawings described below are merely some embodiments, and those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings:

[0033] Figure 1 This is a schematic diagram of the dishwasher inner drum assembly of the present invention;

[0034] Figure 2 This is an exploded view of the dishwasher inner drum assembly structure of the present invention;

[0035] Figure 3 This is a longitudinal sectional view of the dishwasher inner tub assembly of the present invention;

[0036] Figure 4 This is a schematic diagram of the main structure of the dishwasher inner tub of the present invention;

[0037] Figure 5 This is a schematic diagram of the outer side plate structure of the present invention;

[0038] Figure 6 This is the present invention. Figure 3 Enlarged structural diagram at point A in the middle;

[0039] Figure 7 This is a three-dimensional assembly structure diagram of the dishwasher's inner tub body, flange, inner tub connectors, and outer panel.

[0040] Figure 8 yes Figure 3 Enlarged structural diagram at point B (i.e., a cross-sectional view of the assembly structure of the dishwasher inner tub body, flange, inner tub connector and outer panel).

[0041] Figure 9 yes Figure 7 A schematic diagram of the structure with the outer side panels removed.

[0042] Figure 10 This is a partial welding schematic diagram of the dishwasher inner tub of the present invention;

[0043] In the diagram: 1. Inner liner connector; 11. First connecting wall; 12. Second connecting wall; 121. Connecting hole; 2. Inner liner body; 21. Main wall surface; 22. Bottom plate; 221. First flange; 2211. First connecting hole; 23. First side plate; 231. Third flange; 2311. Third connecting hole; 2312. First positioning hole; 24. Second side plate; 241. Main body; 2411. Second flange; 24111. Second connecting hole; 242. Bending plate; 2421. Fourth flange; 24211. Fourth connecting hole; 24212. Second positioning hole; 25. Lug; 251. Clearance part; 3. Flange; 31. First protrusion; 32. Second protrusion. 321. Screw post; 33. Third protrusion; 34. Side flange section; 35. Connecting plate; 351. Inclined edge; 4. Outer side plate; 41. Flat plate; 411. First light guide post mounting hole; 412. First door assembly hole; 42. First outward protrusion; 43. Second outward protrusion; 44. Connecting plate; 441. First longitudinal plate; 442. Second longitudinal plate; 4421. Second mating hole; 4422. Positioning boss; 4423. Second light guide post mounting hole; 4424. Second door assembly hole; 4425. Bending edge; 45. Bending plate; 451. Bending wall surface; 452. Vertical wall surface; 4521. Limiting flange; 45211. Insertion hole; 5. Base support; 6. Weld.

[0044] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the invention in any way, but rather to illustrate the concept of the invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0045] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0046] In the description of this invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "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 limiting this invention.

[0047] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" 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 mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0048] Example 1

[0049] See Figure 1 , Figure 2 , Figure 4 As shown, this embodiment provides a dishwasher inner liner, including: an inner liner body 2, which is formed by splicing multiple splicing components; adjacent splicing components are connected by a flange structure provided at the splicing position, and the flange structure is provided with an assembly structure for supporting assembly. The dishwasher inner liner provided in this embodiment has each component processed individually, and then formed by welding or bonding the flanges on adjacent components. Moreover, the processing of each component is not complex, the component dimensions are precise, the structure is simple, the manufacturing process is simple, and the cost is low. More importantly, this invention, through the assembly structure provided on the flange structure of the inner liner body, fully utilizes the flange's own structure, so that the flange structure not only plays a connecting and fixing role, but also supports the assembly of other dishwasher components, making the inner liner easier to assemble with other components and improving the overall structural stability.

[0050] Furthermore, such as Figure 4 As shown, the splicing components include: a first splicing component, including a base plate 22 and two first side plates 23 disposed on opposite sides of the base plate 22, the cross-section of the first splicing component being U-shaped; a second splicing component and a third splicing component, which are two second side plates 24 respectively disposed on both sides of the first splicing component, the plane of the two second side plates 24 being parallel to the stretching direction of the dishwasher.

[0051] Furthermore, the outer edges of the first splicing component, the second splicing component, and the third splicing component are bent outward and fixed to form the flange structure. The first splicing component, the second splicing component, and the third splicing component 2 are connected together by welding and / or gluing to form an inner liner body 2 with a bottom wall and four main wall surfaces 21, a top opening, and a certain accommodating space. The assembly structure includes assembly holes provided on the flange structure. The assembly structure is formed by opening holes in the flange structure. The molding process is simple and the assembly method is diversified. The assembly holes can be positioning holes and / or screw holes and / or snap-fit ​​mounting holes. Other components of the dishwasher are supported by snap-fit ​​and / or screws and / or snaps, which enhances the stability of the inner liner and other components.

[0052] like Figure 4 As shown, the two sides of the base plate 22 are bent outward to form first flanges 221. The two second side plates 24 each have a main body 241. Along the length of the main body 241, a concave surface is formed at the lower part of the main body 241 by stamping, which is recessed towards the center of the inner liner body 2. The concave surface maximizes the capacity of the inner liner while avoiding the slide rails and other structures of the dishwasher. The lower edge of the concave surface extends downward to form a second flange 2411. The first flange 221 and the second flange 2411 are horizontal flanges set horizontally at the lower part of both sides of the inner liner body 2. The first flange 221 and the second flange 2411 are attached and fixed by welding or bonding. The assembly holes include a first connecting hole 2211 on the first flange 221 and a corresponding second connecting hole 24111 on the second flange 2411. The first connecting hole 2211 and the second connecting hole 24111 are positioned correspondingly and have the same shape and size. An intermediate connector passes through the first connecting hole 2211 and the second connecting hole 24111 to connect and fix the inner tank body to other components of the dishwasher. The number and shape of the assembly holes are not limited, and any number and shape of assembly holes can be formed on the flange structure according to actual needs.

[0053] In this embodiment, in a manufacturing process, a first connecting hole 2211 and a second connecting hole 24111 can be opened on the first flange 221 and the second flange 2411 respectively. Then, the first flange 221 and the second flange 2411 are attached together so that the positions of the first connecting hole 2211 and the second connecting hole 24111 correspond. Then, they are fixed together by welding, bonding or other methods.

[0054] In another manufacturing process, the first flange 221 and the second flange 2411 can be bonded together and fixed as a whole by welding, bonding or other means, and then the first connecting hole 2211 and the second connecting hole 24111 can be opened on the flange structure. This process omits the step of aligning the first connecting hole 2211 and the second connecting hole 24111, which simplifies the manufacturing process. The specific manufacturing process can be determined according to the material properties of the inner liner body.

[0055] Furthermore, the two sides of the first side plates 23 are bent outward to form third flanges 231. The two second side plates 24 also have bent plates 242 that are bent outward from both sides of the main body 241 toward the two first side plates 23. The bent plates 242 are connected to the corresponding first side plates 23. The bent plates 242 are arranged so that the splicing position of the first side plate 23 and the second side plate 24 is located in the plane of the first side plate 23. In this way, the splicing position of the side edges of the first side plate 23 and the second side plate 24 is on the plane, not at the corner, which facilitates the splicing and alignment of each splicing part and moves the welding position to the plane, reducing the welding difficulty. The two first side plates 23 have flat main body 241. The main body 241 of the two first side plates 23 and the two second side plates 24 form the four main wall surfaces 21 of the inner liner. The side edges of the bent plate bodies 242 of the two second side plates are bent outward to form fourth flanges 2421. The third flange 231 and the fourth flange 2421 are longitudinal flanges located on the four sides of the inner liner body 2. The assembly holes include a third connecting hole 2311 opened on the third flange 231 and a corresponding fourth connecting hole 24211 opened on the fourth flange 2421. The third connecting hole 2311 and the fourth connecting hole 24211 are in corresponding positions and have the same shape and size. The inner liner body 2 is connected and fixed to other components of the dishwasher by passing through the third connecting hole 2311 and the fourth connecting hole 24211 through an intermediate connector.

[0056] In this embodiment, the first flange 221 and the base plate 22, and the third flange 231 and the first side plate 23 can be set at any angle. Preferably, the first flange 221 and the base plate 22, and the third flange 231 and the first side plate 23 are set perpendicularly. The second flange 2411 and the fourth flange 2421 are adaptively fitted together. The first flange 221 and the third flange 231 are set perpendicularly, so that the first flange 221 and the third flange 231 will play a certain supporting and limiting role for the second flange 2411 and the fourth flange 2421. Compared with the inclined surface, the fit is more stable, easier to weld, and facilitates the setting of the assembly structure. It is also more conducive to the fit between the inner tank body and other parts of the dishwasher.

[0057] In this embodiment, the base plate 22 and the two first side plates 23 are integrally formed. The center of the base plate 22 has a downwardly recessed pressing structure formed by pressing downwards. The pressing structure can facilitate the avoidance or installation of the water passage or spray structure of the dishwasher. The outer edge of the pressing structure is connected to the outer edge of the base plate 22 through a horizontal end face. The horizontal end face is a horizontal plane. By setting the horizontal end face on the base plate 22, the base plate 22 is welded to the second side plate 24 in a plane-to-plane manner, which reduces the welding difficulty, facilitates welding, and makes the weld line more regular, thereby improving the aesthetic appearance of the inner liner.

[0058] Furthermore, the assembly hole also includes a first positioning hole 2312 formed on the third flange 231 and a corresponding second positioning hole 24212 formed on the fourth flange 2421. The first positioning hole 2312 and the second positioning hole 24212 are positioned correspondingly, forming a positioning hole after the third flange 231 and the fourth flange 2421 are fitted together. The positioning hole is located above or below the connecting hole. The number, shape, and position of the connecting hole and the positioning hole are not limited and can be arbitrarily opened according to actual needs.

[0059] During the fabrication of the inner tank body, the first positioning hole 2312 and the second positioning hole 24212 can be used to install positioning pins. Using these positioning pins, the two second side plates 24 are manually placed into the U-shaped fixture and positioned with the first splicing component. Then, the flanged structure is welded and fixed together using a welding process. Furthermore, after the inner tank body 2 is formed, the first positioning hole 2312 and the second positioning hole 24212 can also serve as a mating structure for positioning and engaging with other components of the dishwasher.

[0060] Furthermore, the outer edge of the flange structure is provided with an outwardly protruding lug 25, and the mounting hole is disposed on the lug 25. The lug 25 includes a first lug formed by the outward protrusion of the outer edge portion of the first flange 221 and a second lug formed by the corresponding outward protrusion of the outer edge portion of the second flange 2411. The first lug and the second lug are positioned correspondingly and are fixedly fitted. The lug 25 also includes a third lug formed by the outward protrusion of the outer edge portion of the third flange 231 and a fourth lug formed by the corresponding outward protrusion of the outer edge portion of the fourth flange 2421. The third lug and the fourth lug are positioned correspondingly and are fixedly fitted. Distributing the mounting hole on the lug 25 avoids the impact of opening the hole on the welding stability of the flange structure. Furthermore, having the lug protruding from the outer edge portion of the flange structure saves material costs compared to extending the entire flange structure outward and then opening a hole.

[0061] Furthermore, there are multiple lugs 25, which are spaced apart along the length of the flange structure. Each lug 25 is provided with an assembly hole. Multiple sets of assembly holes are spaced apart on the flange structure to avoid the problem that the assembly structure is only set on one side of the flange structure, resulting in poor stability after assembly on the other side. This further enhances the overall stability of the inner tank body and other components of the dishwasher.

[0062] Preferably, the first flange 221 and the second flange 2411 are respectively provided with two lugs 25 at the front and rear, and the third flange 231 and the fourth flange 2421 are respectively provided with two lugs 25 at the top and bottom. The lugs 25 are provided at the front and rear ends of the first flange 221 and the second flange 2411, and at the top and bottom ends of the third flange 231 and the fourth flange 2421, respectively. The lugs 25 on the first flange 221 are provided with a first connecting hole 2211, and the lugs 25 on the second flange 2411 are respectively provided with a second connecting hole 24111. The lugs 25 on the third flange 231 are respectively provided with a third connecting hole 23111 and a first positioning hole 2312, and the lugs 25 on the fourth flange 2421 are respectively provided with a fourth connecting hole 24211 and a second positioning hole 24212.

[0063] Specifically, first connecting holes 2211 are respectively formed on the two first lugs of the first flange 221, and second connecting holes 24111 are respectively formed on the two second lugs of the second flange 2411; third connecting holes 2311 and first positioning holes 2312 are respectively formed on the two third lugs of the third flange 231, and fourth connecting holes 24211 and second positioning holes 24212 are respectively formed on the two fourth lugs of the fourth flange 2421. In this embodiment, the number of lugs is not limited. By setting the lugs and assembly structure at both ends of the flange structure, the assembly stability is ensured while saving costs and simplifying the assembly steps.

[0064] Furthermore, the lug 25 is a square or elongated sheet-like structure that protrudes from the outer edge of the flange structure; preferably, the two ends of the lug 25 are smoothly connected at the corners, or are set at a 45° chamfer, to avoid sharp right angles that could easily scratch other parts or the user.

[0065] Alternatively, in another embodiment, the lug 25 is an arc-shaped or semi-circular sheet-like structure that protrudes from the outer edge of the flange structure.

[0066] Furthermore, the lug 25 has a clearance portion 251, which is formed by the inward recess of the side edge of the lug 25; or, the clearance portion 251 is a notch opened on the side edge of the lug 25, which can be arc-shaped or semi-circular, and the clearance portion 251 is used to avoid the installation of other components of the dishwasher.

[0067] In this embodiment, the lugs 25 on the third flange 231 on the four sides of the first splicing component of the inner liner body 2 can all be set to the same shape and size, or they can be set symmetrically on the left and right / front and back / diagonal. The design of the lugs 25 is diverse, and the specific method can be made according to the actual production needs.

[0068] The dishwasher inner liner provided in this embodiment includes an inner liner body formed by splicing multiple splicing components. Adjacent splicing components are connected by a flange structure at the splicing position. The flange structure is provided with an assembly structure for supporting assembly. The dishwasher inner liner provided by this invention has each component processed individually, and then formed by welding or bonding adjacent components together with flanges. Moreover, the processing of each component is not complex, the component dimensions are precise, the structure is simple, the manufacturing process is simple, and the cost is low. More importantly, the assembly structure provided on the flange structure fully utilizes the flange's own structure. The flange not only connects and fixes the splicing components but also provides support for assembly, making the inner liner body easier to assemble with other components of the dishwasher, and resulting in higher overall stability.

[0069] Example 2

[0070] This embodiment provides a dishwasher inner liner assembly, mainly focusing on a detailed description of the specific assembly method of the dishwasher inner liner body 2 and the outer side panel 4 in Embodiment 1.

[0071] Specifically, such as Figures 1 to 6 As shown, the dishwasher inner liner assembly includes: an inner liner body 2; and outer side panels 4, which are disposed on both outer sides of the inner liner body 2 and parallel to the inner liner pulling direction. The inner liner body 2 is formed by splicing multiple splicing components, and two adjacent splicing components are connected by a flange structure provided at the splicing position. The flange structure is provided with an assembly structure that supports and assembles with the outer side panels 4.

[0072] The outer side panel in this embodiment not only serves to shield and decorate the inner liner, but also provides sound insulation and noise reduction. The assembly structure on the inner liner body's flanged structure, which supports and assembles with the outer side panel, makes it easier to assemble the inner liner body and the outer side panel. This assembly structure provides support and fixation for the outer side panel, resulting in higher stability between the outer side panel and the inner liner body.

[0073] Furthermore, the assembly structure includes a first assembly structure disposed on the flange structure and a second assembly structure correspondingly disposed on the outer side panel 4. The inner liner body 2 and the outer side panel 4 are assembled and connected through the first and second assembly structures. By providing an assembly structure on the flange structure of the inner liner body, the structure of the flange itself is fully utilized. This allows the flange structure to connect the first splicing component, the second splicing component, and the third splicing component, while also supporting the assembly of the outer side panel. This makes it easier for the inner liner to be assembled with the outer side panel and improves the stability of the overall structure.

[0074] Furthermore, such as Figures 2 to 5 As shown, the two side edges of the base plate 22 are bent downwards to form first flanges 221, and the lower edges of the two second side plates 24 are bent downwards to form second flanges 2411. The first assembly structure includes a first assembly hole, which includes a first connecting hole 2211 formed on the first flange 221 and a corresponding second connecting hole 24111 formed on the second flange 2411. The number of connecting holes is not limited, and multiple connecting holes can be formed as needed.

[0075] Furthermore, the lower part of the two second side plates 24 is provided with a recessed surface that is recessed towards the center of the inner liner. Each of the two second side plates 24 has a main body 241. Along the length direction of the main body 241, a recessed surface that is recessed towards the center of the inner liner body 2 is formed at the lower part of the main body 241 by stamping. The recessed surface maximizes the capacity of the inner liner while avoiding the slide rails and other structures of the dishwasher. The lower edge of the recessed surface extends downward to form a second flange 2411. The outer side plate 4 includes a flat plate 41 and a bent plate 45 disposed in the flat plate 41 that matches the shape of the recessed surface and the second flange 2411. The second assembly structure includes a first mating hole (not shown in the figure) corresponding to the first assembly hole opened on the bent plate 45. The first and second assembly structures are formed by opening holes in the flanged structure and the outer side plate. The molding process is simple and the assembly method is diversified. The assembly holes can be positioning holes and / or screw holes and / or snap-fit ​​mounting holes. The inner liner body and the outer side plate are assembled and connected by snap-fit ​​and / or screws and / or snaps, which enhances the stability of the fit between the inner liner body and the outer side plate and prevents the outer side plate from loosening and separating from the inner liner body.

[0076] In this embodiment, the length and width of the flat plate 41 are both greater than the length and width of the second side plate 42. The flat plate 41 covers the outside of the second side plate 42, serving a certain decorative and concealing function. The bent plate 45 is disposed on the lower inner side of the flat plate 41, corresponding to the position of the recessed surface. The upper edge of the bent plate 45 is connected to the flat plate 41, and the other edge bends and extends towards the inner liner body 2 following the shape of the recessed surface to form a curved wall surface 451. The lower edge of the curved wall surface 451 continues to extend vertically downward to form a vertical wall surface 452, ultimately making the longitudinal section of the bent plate 45 and the flat plate 41 form an "h" shape. The vertical wall surface 452 is attached to the outer surface of the second flange 2411, and the first mating hole is disposed on the vertical wall surface 452. The bent plate 45 and the straight plate 41 form an inverted "U"-shaped groove structure. The upper surface of the groove structure matches the concave surface of the inner liner body 2. The interior of the groove structure serves as a slide rail mounting groove for mounting slide rails.

[0077] Furthermore, such as Figure 5 and Figure 6 As shown, the lower edge of the bending plate 45 extends horizontally towards the inner liner body 2 and then bends upward to form a limiting flange 4521. The limiting flange 4521 can accommodate the first flange 221 and the second flange 2411. Specifically, the vertical wall surface 452 of the bending plate 45 extends horizontally towards the inner liner body 2 and then bends upward to form the limiting flange 4521. The limiting flange 4521 can restrict the displacement of the first flange 221 and the second flange 2411, playing a positioning and supporting role. It can also accommodate the first flange 221 and the second flange 2411, preventing the flanges from being exposed and scratching other parts or injuring the user.

[0078] Furthermore, the two side edges of the two first side plates 23 are bent outward to form third flanges 231, and the two side edges of the two second side plates 24 are bent outward to form fourth flanges 2421. The first assembly structure also includes second assembly holes, which include a third connecting hole 2311 opened on the third flange 231 and a corresponding fourth connecting hole 24211 opened on the fourth flange 2421. Each of the two second side plates 24 has a main body 241 and bent plate bodies 2421 extending from both sides of the main body 241 toward the two first side plates 23. 42. The bending plate 242 is configured so that the splicing position of the first splicing component and the second splicing component is located on the plane of the first side plate 23. The flat plate 41 of the outer side plate 4 is provided with a connecting plate 44 that protrudes and extends towards the first side plate 23 and fits against the outer wall of the fourth flange 2421. The second assembly structure includes a second mating hole 4421 opened on the connecting plate 44 and cooperating with the second assembly hole. In this embodiment, the number of the first assembly hole and the second assembly hole is not limited, and any number of assembly holes can be opened on the flange structure according to actual needs.

[0079] Furthermore, in combination Figures 3 to 6 As shown, the second assembly hole also includes a first positioning hole 2312 on the third flange 231 and a corresponding second positioning hole 24212 on the fourth flange 2421. The second assembly structure also includes a positioning boss 4422 on the connecting plate 44 that mates with the first positioning hole 2312 and the second positioning hole 24212. The positioning boss 4422 is disposed on the inner wall surface of the connecting plate 44. In this embodiment, the first positioning hole 2312 and the second positioning hole 24212 can serve as an assembly structure for positioning and mates the inner liner body 2 with the outer side plate 4. The outer side plate 4 is provided with a positioning boss 4422, which corresponds to the position of the positioning hole. During assembly, the positioning boss 4422 is inserted into the positioning hole, so that the first mating hole and the second mating hole on the outer side plate 4 correspond to the positions of the first assembly hole and the second assembly hole on the flange structure, respectively, and are directly aligned. They can be directly installed and fixed through the intermediate connector, improving assembly efficiency. Furthermore, the engagement of the positioning boss 4422 with the positioning hole allows the inner liner body to provide relative support to the outer panel. The first positioning hole 2312 and the second positioning hole 24212 can both serve a positioning function during the manufacturing of the inner liner body 2 or when the inner liner body 2 is engaged with the outer panel 4, thus serving multiple purposes and improving assembly efficiency.

[0080] In this embodiment, the connecting plate 44 is disposed on the front and rear sides of the flat plate 41. The connecting plate 44 includes a first longitudinal plate 441 perpendicularly connected to the inner wall of the flat plate 41, and a second longitudinal plate 442 perpendicularly connected to the first longitudinal plate 441 and attached to the fourth flange 2421. The second longitudinal plate 442 is arranged parallel to the flat plate 41. The lower edges of the first longitudinal plate 441 and the second longitudinal plate 442 are connected to the side edge of the bent plate 45 to enhance the stability of the structure. The second mating hole 4421 is disposed on the second longitudinal plate 442.

[0081] Preferred, such as Figure 5 As shown, a light guide post mounting position for mounting a dishwasher light guide post is provided on the outer side plate 4 near the front side of the dishwasher door. The light guide post mounting position includes a first light guide post mounting position for mounting a first light guide post for the light path to enter, and a second light guide post mounting position for mounting a second light guide post for the light path to exit. The first light guide post mounting position and the second light guide post mounting position are arranged longitudinally above the outer side plate 4. The first light guide post mounting position / second light guide post mounting position includes a first light guide post mounting hole 411 provided on the flat plate 41 and a second light guide post mounting hole 4423 correspondingly provided on the second vertical plate 442.

[0082] Further preferably, a light guide post support plate is provided between the flat plate 41 and the second vertical plate 442 to support the light guide post, preventing the light guide post from detaching from its mounting position and falling through the gap between the first and second vertical plates. The light guide post support plate includes a first light guide post support plate located below the first light guide post mounting position and a second light guide post support plate located below the second light guide post mounting position. The first and second light guide post support plates are connected between the flat plate 41 and the second vertical plate 442, serving to support the light guide post and simultaneously enhancing the stability of the second vertical plate.

[0083] The outer panel 4 has light guide post mounting positions. The first light guide post mounting position is used to install the first light guide post for light to enter, and the second light guide post mounting position is used to install the second light guide post for light to exit. The light path exits from the first light guide post, and a corresponding reflective element is provided on the cabinet. The light path is refracted back to the second light guide post by the reflective element, thereby detecting whether the dishwasher door is closed properly. If the light path is detected to be refracted back to the second light guide post, then it can be determined that the door is closed properly.

[0084] Furthermore, the dishwasher inner tank assembly also includes a door body located on the front side of the dishwasher. The door body and the outer side panel 4 are connected by a door body connector. The outer side panel 4 is also provided with a door body assembly structure for installing the dishwasher door body. Figure 2The door assembly structure includes a first door assembly hole 412 on the flat plate 41 and a second door assembly hole 4424 on the second longitudinal plate 442 corresponding to the first door assembly hole 412. Preferably, the first door assembly hole 412 is a circular snap-fit ​​mounting hole, and the second door assembly hole 4424 is a circular snap-fit ​​mounting hole with a diameter smaller than the first door assembly hole 412. The door connector is located between the flat plate 41 and the second longitudinal plate 442, and the door assembly is fixed to the outer panel and the inner liner body by snap-fit, which is simple to install, easy to disassemble and replace, and reduces the assembly difficulty. The third flange 231 and the fourth flange 2421 are respectively provided with avoidance parts to avoid obstructing the installation of the door assembly. The avoidance parts are avoidance holes provided on the flanges or notches formed by the inward indentation of the flanges.

[0085] Furthermore, the outer edge of the flange structure is provided with an outwardly protruding lug 25, the first assembly structure is disposed on the lug 25, and the outer side plate 4 is provided with a structure that cooperates with the lug 25. Preferably, the limiting flange 4521 is provided with an insertion hole 45211 through which the lug 25 located on the first flange 221 and the second flange 2411 can pass. The insertion hole 45211 is an elongated hole opened on the bottom wall of the limiting flange 4521, and the length of the insertion hole 45211 matches the length of the lug 25. During assembly, the lug 25 is inserted into the insertion hole 45211 to enhance the positioning effect, improve assembly efficiency, limit the relative displacement of the outer side plate and the inner liner body in the horizontal direction, and achieve higher stability.

[0086] More preferably, the first flange 221 and the second flange 2411 are provided with two lugs 25 spaced apart, and the limiting flange 4521 is provided with two insertion holes 45211 through which the two lugs 25 can pass. By inserting the lugs 25 into the insertion holes 45211 at both ends for limiting, the positioning effect is further enhanced, and the phenomenon of deviation and separation is avoided, where one end is limited by the lugs 25 and the insertion holes 45211, while the other end has poor positioning stability.

[0087] Furthermore, the third flange 231 and the fourth flange 2421 are provided with two lugs 25 spaced vertically apart. The second mounting holes are respectively provided on the upper lug and the lower lug. The second longitudinal plate 442 is attached to the upper and lower lugs, and the second longitudinal plate 442 is correspondingly provided with a second mating hole 4421 that mates with the second mounting holes on the upper and lower lugs. Preferably, in order to consider material costs, the second longitudinal plate 442 includes an upper longitudinal plate adapted to the size of the upper lug and a lower longitudinal plate adapted to the size of the lower lug. The second mating holes 4421 are respectively provided on the upper and lower longitudinal plates. The upper and lower longitudinal plates are respectively attached to the upper and lower lugs. The positions of the second mounting holes and the second mating holes 4421 are corresponding and are assembled and fixed by intermediate connectors, such as buckles or screws.

[0088] Furthermore, such as Figure 5 As shown, the shape of the lower edge of the second vertical plate 442 is the same as the shape of the lower edge of the lower lug, and the lower edge of the second vertical plate 442 is provided with an inwardly bent edge 4425. The width of the bent edge 4425 is greater than the thickness of the lower lug. The lower lug is located inside the bent edge. The bent edge 4425 plays a certain supporting and positioning role for the lower lug, and also prevents the lower edge of the lower lug from being exposed, scratching other parts or injuring the user.

[0089] This embodiment also provides a dishwasher with the above-mentioned dishwasher inner liner assembly, including a cabinet and an inner liner assembly. The inner liner assembly further includes a base support 5 located at the bottom of the inner liner body 2 and a flange 3 with an opening at the top of the inner liner body 2. The outer side plate 4 is respectively supported and assembled with the base support 5 and the flange 3. Figure 5 and Figure 6 As shown, the upper edge of the base 5 extends horizontally outward and then bends downward to form a folded edge. The folded edge is engaged with the limiting folded edge 4521 of the outer side plate 4. The limiting folded edge 4521 not only supports the assembly of the first folded edge 221 and the second folded edge 2411, but also provides some support for the base 5. Preferably, the outer edge of the limiting folded edge 4521 is provided with multiple slots at intervals, and the folded edge of the base 5 is provided with a boss structure for the slots to engage. The engagement of the boss structure and the slots further enhances the stability of the fit between the base 5 and the outer side plate 4.

[0090] The dishwasher inner tub assembly provided in this embodiment includes two outer side panels disposed on opposite sides of the inner tub body. These two outer side panels not only decorate the inner tub but also provide support. Furthermore, the assembly structure on the inner tub body's flanged structure, which supports and assembles with the outer side panels, facilitates the assembly of the inner tub body and the outer side panels. This assembly structure provides support and fixation to the outer side panels, resulting in greater stability in the fit between the outer side panels and the inner tub body.

[0091] Example 3

[0092] See Figure 1 , Figure 2 , Figure 4 , Figures 7 to 9 As shown, this embodiment provides a dishwasher inner liner connector 1, which is installed on the opening of the inner liner body 2 in Embodiment 1. Specifically, the dishwasher inner liner connector 1 includes a first connecting portion connected to the inner liner body 2 and a second connecting portion disposed on the first connecting portion. The second connecting portion is provided with an assembly structure for fixed assembly. The design of this inner liner connector 1 simplifies the assembly structure of the dishwasher inner liner.

[0093] In one specific implementation scheme, see Figure 8 and Figure 9 The first connecting part includes a first connecting wall 11, and the second connecting part includes a second connecting wall 12 connected to the first connecting wall 11 at a certain angle. The first connecting wall 11 and the second connecting wall 12 can be integrally formed and have an overall arc-shaped structure, such as a C-shaped structure. One edge of the arc surface can be fixed to the opening edge of the inner liner body by welding, such as by spot welding, to fix the inner liner connector to the opening edge of the inner liner body 2. The other edge of the arc surface extends away from the inner liner to support the assembly flange 3. Of course, the inner liner connector can also be fixed to the inner liner body in other ways, such as by a snap-fit ​​structure or by fasteners.

[0094] In another preferred embodiment, the first connecting portion includes a first connecting wall 11 parallel to the side wall of the inner liner, and the second connecting portion includes a second connecting wall 12 connected to the first connecting wall 11 at a certain angle. The second connecting wall 12 is provided with an assembly structure for fixed assembly. Further, the second connecting wall 12 extends in a direction perpendicular to the first connecting wall 11, and the assembly structure includes a snap-fit ​​structure and / or a connecting hole 121 on the second connecting wall 12. In this embodiment, the first connecting wall 11 is fitted to the edge of the inner liner opening, and the second connecting wall 12 is perpendicular to the edge of the inner liner opening, which facilitates the support and assembly of the flange 3. In this embodiment, by providing the inner liner connector 1 at the opening of the inner liner, not only can it securely connect the inner liner and the flange, but more importantly, the inner liner connector has a certain longitudinal extension length. When it is necessary to produce inner liners of different heights, the connector can be used as a universal component to adjust the height of the inner liner to meet production needs.

[0095] The first connecting wall 11 and the second connecting wall 12 are welded / bonded / or fixed together by fasteners, or the first connecting wall 11 and the second connecting wall 12 are integrally formed, such as the second connecting wall 12 being formed by bending the lower end of the first connecting wall 11 away from the inner liner.

[0096] Example 4

[0097] See Figure 1 , Figure 2 , Figure 4 , Figures 7 to 9 As shown, this embodiment provides a dishwasher inner tub assembly having the dishwasher inner tub body 2 in Embodiment 1 and the dishwasher inner tub connector 1 in Embodiment 3. This embodiment mainly introduces how to assemble and connect the inner tub body 2 and the flange 3 on the top of the inner tub body through the inner tub connector 1.

[0098] The dishwasher inner liner includes: an inner liner body 2 with an opening, a first connecting part of a dishwasher inner liner connector 1 connected to the edge of the opening of the inner liner body 2, and a second connecting part extending away from the inner liner.

[0099] By fixing the inner liner connector 1 to the opening of the inner liner body 2, the subsequent installation of the flange 3 is facilitated, and the stamping process of the opening edge of the inner liner body is eliminated, reducing the processing difficulty. Furthermore, different installation heights of the inner liner connector 1 at the opening of the inner liner body 2 result in inner liners of different heights and sizes, thus producing a variety of inner liners of different specifications. When producing inner liners of different heights and sizes, the design of the inner liner connector significantly improves production efficiency, eliminating the need for separate molds for each specification, thereby reducing production costs. For producing inner liners of different sizes, only the installation position of the inner liner connector 1 needs to be adjusted, significantly reducing production costs.

[0100] Specifically, the inner liner connector 1 includes a first connecting part connected to the inner liner body 2 and a second connecting part disposed on the first connecting part. The second connecting part is used to assemble the flange 3. The inner liner connector 1 can be fixed to the inner liner opening end wall at a selectable height position. Adjusting the height of the second connecting part adjusts the installation height of the flange 3. The installation height of the flange 3 determines the effective depth or effective height of the finished dishwasher inner liner.

[0101] The inner liner includes a bottom wall and a peripheral wall. The peripheral wall includes a wall surface extending from bottom to top. The first connecting part of the inner liner connector 1 can be fixed at a height position on the wall surface extending from bottom to top, and the height of the second connecting part can be adjusted.

[0102] The inner liner's peripheral wall includes a straight wall extending from bottom to top. The first connecting part includes a first connecting wall 11, which is a planar connecting wall. The planar connecting wall can be selectively attached to the straight wall at a height position. In another feasible embodiment, the inner liner's peripheral wall includes an arc-shaped wall extending from bottom to top. The first connecting part includes a first connecting wall 11, which is an arc-shaped connecting wall with a curvature consistent with the arc-shaped wall. The arc-shaped connecting wall can be selectively attached to the arc-shaped wall at a height position. The first connecting wall 11 of the inner liner connector 1 is adapted to the structural shape of the peripheral wall of the inner liner body 2, as long as it can be fixed to the inner liner opening end wall at a selectable installation height position.

[0103] Furthermore, the upper edge of the inner liner's peripheral wall is provided with a straight wall surface extending vertically or obliquely from bottom to top. A portion of the planar connecting wall of the inner liner connector 1 is attached to this straight wall surface, with a portion extending beyond the opening of the inner liner body 2, thereby increasing the height of the inner liner. Alternatively, the entire planar connecting wall is attached to the straight wall surface, with its upper edge lower than the inner liner opening. This allows for the production of an inner liner with a relatively shallow depth.

[0104] The inner liner connector 1 extends along the edge of the opening of the inner liner body 2. The first connecting wall 11 of the inner liner connector 1 is connected to the outer wall surface of the opening end of the inner liner body 2. The second connecting wall 12 extends in a direction perpendicular to the outer wall surface of the opening end, and multiple assembly structures for fixed assembly are spaced apart on the second connecting wall 12 along the extending direction of the opening edge of the inner liner body 2. These multiple assembly structures, each used to assemble the flange 3, improve the installation stability of the flange 3.

[0105] The inner liner body 2 includes four main wall surfaces 21. Each main wall surface 21 can be a flat wall or a wall surface stamped or pressed onto a flat wall. Two adjacent main wall surfaces 21 are vertically arranged. The dishwasher inner liner assembly includes at least two inner liner connectors 1, which are respectively disposed on two opposite main wall surfaces 21 of the inner liner body 2. This design ensures effective support for the inner liner by arranging at least two opposite inner liner connectors 1.

[0106] Preferably, the inner liner connector 1 is a strip structure, including a long strip first connecting wall 11 and a long strip second connecting wall 12 perpendicularly connected to the first connecting wall 11. The first connecting wall 11 is attached to the upper edge of the corresponding main wall surface 21, and the second connecting wall 12 is provided with a plurality of connecting holes 121 at intervals along the length direction.

[0107] In a preferred embodiment, the inner liner includes four main wall surfaces 21, which are vertically arranged between two connected main wall surfaces 21. The dishwasher inner liner is provided with an inner liner connector 1 for each main wall surface 21, and each inner liner connector 1 extends along the upper edge of the corresponding main wall surface 21.

[0108] The inner liner can be integrally formed or assembled from multiple splicing components. In a preferred embodiment, the inner liner is assembled from a first splicing component, a second splicing component, and a third splicing component. The first splicing component includes a base plate and two first side plates 23 disposed on opposite sides of the base plate. The second and third splicing components include two second side plates 24 disposed on opposite sides of the first splicing component. Each second side plate 24 has a main body 241 and a bent plate 242 extending from both sides of the main body 241 toward the two first side plates 23. The bent plate 242 is connected to the first side plate 23 on the corresponding side. The main bodies 241 of the two first side plates 23 and the two second side plates 24 form four main wall surfaces 21 of the inner liner. Each of the four main wall surfaces 21 is attached to an inner liner connector 1 at the edge of the inner liner opening.

[0109] Furthermore, the dishwasher inner tub also includes a flange 3, which is fixed to the second connecting wall 12 by the assembly structure. Preferably, the flange 3 is provided with a connecting protrusion extending towards the second connecting wall 12, and the connecting protrusion is fixedly connected to the assembly structure. Preferably, the connecting protrusion includes a screw post 321 extending towards the second connecting wall 12, and the assembly structure includes a connecting hole 121 provided on the second connecting wall 12, through which a screw passes to connect to the threaded hole of the screw post 321. It is evident that the second connecting wall provides both support for the flange and serves as a connection for assembly.

[0110] The flange 3 includes a body extending circumferentially along the opening edge of the inner liner body 2. A first protrusion 31 and a second protrusion 32 are spaced apart on the body. The inner liner opening end wall and / or the first connecting wall 11 are inserted into a groove formed between the first protrusion 31 and the second protrusion 32. The first protrusion is located on the inner side of the inner liner's peripheral wall, and the second protrusion 32 is located outside the inner liner and supported on the second connecting wall 12. The connecting protrusion includes a screw post 321 integrally formed on the second protrusion 32. A screw passes through a connecting hole 121 on the second connecting wall 12 and connects to the threaded hole of the screw post 321. In this design, the screw post 321 is integrally formed on the second protrusion 32, which serves both for connection and assembly and improves the structural strength of the second protrusion 32.

[0111] Furthermore, a sealing structure is provided between the flange 3 and the inner wall surface of the inner liner opening, and / or a sealing structure is provided between the inner liner connector 1 and the flange 3.

[0112] Specifically, the sealing structure includes a sealant disposed in the groove, which fills the space between the inner wall of the inner liner body opening and the first protrusion 31 and / or between the first connecting wall 11 (or planar connecting wall) of the inner liner connector 1 and the second protrusion 32; or, the sealing structure includes an annular sealing strip, which is bent and sleeved on the outside of the mating first connecting wall 11 and the inner wall of the inner liner opening, including a first sealing section pressed between the inner wall of the inner liner opening and the first protrusion 31 and a second sealing section pressed between the first connecting wall 11 and the second protrusion 32. The sealing strip also facilitates the stability of the flange and the inner liner opening edge insertion fit.

[0113] Example 5

[0114] See Figures 1 to 9 As shown, this embodiment provides a dishwasher inner liner assembly having the dishwasher inner liner of the above embodiment four, mainly focusing on a detailed description of the assembly and connection between the outer side plate 4 and the flange 3.

[0115] like Figures 1 to 3 , Figures 7 to 9 As shown, the dishwasher inner tub assembly includes two outer side panels 4. The inner tub body 2 has two main wall surfaces 21 parallel to the inner tub's pulling direction. The two outer side panels 4 are respectively disposed on the outer sides of the two main wall surfaces 21, serving to shield, protect, reduce noise, and decorate. The flange 3 includes side flange sections 34 respectively disposed on the two main wall surfaces 21. The outer edges of the two side flange sections 34 away from the inner tub body 2 have a third protrusion 33 protruding downwards. A receiving groove is formed between the second protrusion 32 and the third protrusion 33. The tops of the two outer side panels 4 are respectively accommodated in the corresponding receiving grooves. The tops of the outer side panels 4 can be fixedly installed in the receiving grooves, or they can simply be accommodated and hidden / supported in the receiving grooves. Specifically, multiple connecting plates 35 connecting the second protrusion 32 and the third protrusion 33 are disposed at intervals in the receiving grooves, thereby providing upward support for the flange 3 and providing a certain support effect for the inner tub. The connecting plate 35 connects the second protrusion 32 and the third protrusion 33, and serves to strengthen the structure of the flange 3, similar to a reinforcing rib. In addition, the bottom of the connecting plate 35 is provided with an inclined edge 351, and the top of the outer plate 4 abuts or snaps against the inclined edge 351. Preferably, the inclined edge 351 is provided with an inwardly recessed groove, and the top of the outer plate 4 is snapped into the groove provided by the inclined edge 351, which improves assembly efficiency, further enhances the stability of the positioning of the outer plate and the flange, and restricts the movement of the outer plate.

[0116] Furthermore, the outer side plate 4 includes a straight plate 41 parallel to the two main wall surfaces 21 on both sides opposite to the inner liner. The straight plate 41 covers the outside of the main wall surfaces 21. Because the flange 3 is fixed to the second connecting wall 12 of the connector outside the inner liner wall, the receiving groove formed between the second protrusion 32 and the third protrusion 33 is away from the outer wall surface of the inner liner. The straight plate 41 of the outer side plate 4 is attached to the main wall surfaces 21 on both sides of the inner liner. Therefore, the outer side plate 4 also includes an outward protrusion that bends away from the inner liner from the top edge of the straight plate 41 and extends into the receiving groove. The structure, the protruding structure, includes a first protruding part 42 that bends and extends from the top edge of the flat plate 41 away from the inner liner, and a second protruding part 43 that bends upward from the first protruding part 42 and extends into the receiving groove. The protruding structure is integrally formed with the flat plate 41 and has a smooth transition, thus having an integrated and aesthetically pleasing appearance. Through the design of the protruding structure, the flange 3 covers the upper edge of the outer side plate 4, which has an aesthetic effect and can also play a role in isolation and noise reduction. The protruding structure also provides an upward force to the flange 3, thus providing a certain support effect for the inner liner and facilitating the stability of the inner liner structure.

[0117] Example 6

[0118] See Figures 1 to 4 ,as well as Figure 10 This embodiment mainly provides a detailed description of the welding methods for the dishwasher inner liner provided in Embodiments 1 to 5 above.

[0119] This embodiment provides a welding method for a dishwasher inner liner. The inner liner includes an inner liner body 2 formed by splicing multiple components. Adjacent splicing components are fixed by welding through a flange structure at the splicing position. The flange structures of adjacent splicing components are welded using a segmented, intermittent skip welding method. The dishwasher inner liner welding method provided in this embodiment uses a two-stage, one-line, segmented, equally spaced welding method. This precise welding method not only ensures good flatness of the mating surfaces but also improves the sealing performance of the weld.

[0120] Furthermore, the splicing components include: a first splicing component, comprising a base plate 22 formed by bending a single sheet and two first side plates 23 located on opposite sides of the base plate 22, wherein the base plate 22 and the two first side plates 23 are formed by bending a single sheet. By setting the first splicing component as an integrally formed U-shaped plate, the amount of welds in the inner liner is reduced, simplifying the manufacturing process of the inner liner while greatly improving the sealing performance of the inner liner; the second splicing component and the third splicing component are two second side plates 24 disposed on both sides of the first splicing component; The two sides of the base plate 22 are bent outward to form a first flange 221, and the lower edges of the two second side plates 24 are bent downward to form a second flange 2411. The first flange 221 and the second flange 2411 are welded together and fixed. The two sides of the two first side plates 23 are bent outward to form a third flange 231, and the two sides of the two second side plates 24 are bent outward to form a fourth flange 2421. The third flange 231 and the fourth flange 2421 are welded together and fixed. Each flange structure has at least one weld 6. Since the weld is long, it is easy to weld off-center if welded in one go, resulting in poor straightness of the weld and deformation. Therefore, in this application, each weld is welded in two stages. In the first welding, the flange structure is welded in segments from one end to the other. The second welding fills in the remaining gaps in the first welding. The segmented welding method results in very little deformation during welding, which greatly reduces the manufacturing cost of the inner liner, improves efficiency, and extends the service life of the inner liner.

[0121] Furthermore, in the above scheme, segmented, equally spaced, straight-line welding is adopted in the first welding. Along the length direction of the flange structure, the weld seam 6 of the flange structure is divided into several straight segments of equal length at equal intervals. In the first welding, the weld seam 6 of the straight segments is welded sequentially. In the second welding, the weld seam 6 between two adjacent straight segments is filled in. By using segmented, intermittent skip welding to weld the flange structures of two adjacent splicing components, the welding is carried out in two stages. In the first welding, the weld seam is welded in segments at equal intervals from one end to the other. In the second welding, the weld seam 6 of the remaining intervals in the first welding is filled in. Through the two-stage segmented welding, the gaps at the weld seam can be eliminated, the welding strength and weld sealing performance can be increased, thereby effectively avoiding water and steam leakage problems in the dishwasher inner tank, reducing the deformation rate of long weld seams, and ensuring good flatness of the mating surfaces.

[0122] Furthermore, along the length of the flange structure, a plurality of welding points are evenly spaced and arranged in a straight line on the flange structure. The distance between each pair of welding points is the same, and the interval weld 6 between adjacent pairs of welding points is the same. In the first welding, the weld 6 between each pair of welding points is welded sequentially from one end of the flange structure to the other. In the second welding, the interval weld 6 between adjacent pairs of welding points is welded sequentially. By setting a plurality of welding points, the welding efficiency is improved, and the overall straightness of the weld is better.

[0123] Preferably, the distance between each pair of solder joints is d1, and the gap distance between two adjacent pairs of solder joints is d2, where d1 = d2. Setting the distance between each pair of solder joints to the same distance as the gap distance between two adjacent pairs of solder joints simplifies the welding process, as there is no need to change the welding tools when performing the second welding after the first welding is completed.

[0124] Furthermore, in this embodiment, the flange structures of two adjacent splicing components are connected to each other by laser welding. Laser welding technology utilizes a high-energy-density laser beam as a heat source. By controlling parameters such as the width, energy, peak power, and repetition frequency of the laser pulse, the workpiece is melted to form a good fusion weld, resulting in better welding strength of the inner liner. Laser welding can reduce the required amount of heat, making it less prone to residual heat deformation. The weld 6 is located in the middle of the flange structure, and at a certain distance from the inner splicing seam of the two splicing components. This effectively improves the problems of weld corrosion and easy rusting of the inner liner. Moreover, the weld is not visible on the inner side of the inner liner, making it easier to control the appearance quality of the inner liner. In this embodiment, the flange structure ensures that the weld of the two adjacent splicing components is located on the outside of the dishwasher inner liner, reducing the frequent contact between the weld of the dishwasher inner liner and water, thus preventing rusting and weld corrosion.

[0125] Furthermore, the distance 6 of the weld on the flanged structure from the inner splice seam of the two splicing components is d, where d ≥ 2mm. The weld 6 is located on the flanged structure, and the distance between the weld 6 and the splice seam of the inner edge of the two splicing components is not less than 2mm. The weld is completely invisible, which improves the aesthetics of the inner liner. During the use of the inner liner, it effectively avoids the problems of weld corrosion and rust caused by water contact, thus improving the user experience.

[0126] Furthermore, the welding method described in this embodiment includes the following steps:

[0127] S1: Different splicing components of the inner liner are manufactured by cutting and / or stamping and / or bending processes;

[0128] S2: Create a flange structure on the splicing edge of two adjacent splicing parts by bending and / or stretching, align the flange structures of the two adjacent splicing parts, and clamp them with a fixture;

[0129] S3: The weld is located on the flange structure at a distance d from the inner splice joint of the two splicing components. Welding is carried out from one end of the flange structure to the other using a segmented interval skip welding method.

[0130] S4: Divide the weld of the flange structure to be welded into several segments of equal length, number the segments in sequence, and divide the weld of the flange structure into odd-numbered segments and even-numbered segments. First, weld the odd-numbered segments in sequence.

[0131] S5: Perform post-weld heat treatment on the odd-numbered weld seams in sequence, and simultaneously weld the weld seams of the adjacent even-numbered weld seams in sequence.

[0132] S6: Finally, the weld seams of even-numbered segments are subjected to post-weld heat treatment in sequence.

[0133] In steps 5 and 6 above, segmented interval welding and heat treatment are adopted so that welding and heat treatment do not affect each other. Welding and heat treatment can be carried out alternately without interference, which improves the molding efficiency of the inner liner.

[0134] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A method of welding a dishwasher tub, characterized by: The inner container includes an inner container body formed by splicing a plurality of splicing components, and two adjacent splicing components are welded and fixed by a flange structure at a splicing position. An outer edge of the flange structure is provided with a lug extending outward, and an assembly hole is formed in the lug. An avoidance portion is arranged on a side edge of the lug. The inner container opening end is provided with an inner container connector with a selectable height, which includes: A first connecting wall is connected with the inner container body and is fixed on the outer wall surface of the opening end of the inner container body at a selectable height position to adjust the height of the second connecting wall. The second connecting wall is connected with the first connecting wall perpendicularly and is used for assembling a flange. The second connecting wall extends in a direction perpendicular to the outer wall surface of the opening end, and a plurality of assembly structures for fixing assembly are arranged on the second connecting wall along the extension direction of the opening edge of the inner container body. The flange is fixed on the second connecting wall through the assembly structure. The flange includes a body extending along the opening edge of the inner container body. First and second protruding portions are arranged on the body at intervals. The inner container opening end wall surface and / or the first connecting wall are inserted into a groove formed between the first and second protruding portions. The weld is located on the flange structure, and the flange structures of the two adjacent splicing components are welded by using a segmented interval skip welding method.

2. The welding method of the inner container of the dishwasher according to claim 1, characterized in that: At least one weld is arranged on each group of flange structures, and each weld is welded in two times. In the first time of welding, the weld is welded in a segmented interval manner from one end to the other end of the flange structure. In the second time of welding, the weld of the remaining interval part in the first time of welding is filled.

3. The welding method of the inner container of the dishwasher according to claim 2, characterized in that: In the first time of welding, a segmented interval linear welding is used. Along the length direction of the flange structure, the weld of the flange structure is divided into a plurality of linear segments with equal length. In the first time of welding, the weld of the linear segments is welded in sequence. In the second time of welding, the weld between the adjacent two linear segments is filled.

4. The welding method of the inner container of the dishwasher according to claim 2, characterized in that: A plurality of pairs of welding points arranged in a straight line are arranged on the flange structure at equal intervals along the length direction of the flange structure. The distance between each pair of welding points is the same, and the interval weld between the adjacent two pairs of welding points is the same. In the first time of welding, the weld between each pair of welding points is welded in sequence. In the second time of welding, the interval weld between the adjacent two pairs of welding points is welded in sequence.

5. The method of welding a dishwasher tub of claim 4, wherein: The distance between each pair of welding points is d1, and the interval distance between the adjacent two pairs of welding points is d2, wherein d1=d2.

6. A method of welding a dishwasher tub according to any one of claims 1-5, characterized in that: The flange structures of the two adjacent splicing components are connected with each other by laser welding, and the weld is located at the middle position of the flange structure.

7. The method of welding a dishwasher tub according to claim 6, wherein: The distance between the weld on the flange structure and the inner splicing seam of the two splicing components is d, and d≥2mm.

8. A method of welding a dishwasher tub according to any one of claims 1-7, characterized in that: The method includes the following steps: S1: manufacturing different splicing components of the inner container by cutting and / or stamping and / or bending processes; S2: making a flange structure on the splicing edges of the two adjacent splicing components through a bending and / or stretching process, aligning the flange structures of the two adjacent splicing components, and clamping by a clamp; S3: setting the welding position on the flange structure at a position d away from the inside splicing seam of the two splicing components, wherein d≥2mm, and using a segmented interval skip welding method to weld from one end of the flange structure to the other end; S4: dividing the welding seam of the to-be-welded flange structure into several segments of equal length, sequentially numbering the segments, dividing the welding seam of the flange structure into odd-numbered segments and even-numbered segments, and first sequentially welding the odd-numbered segments; S5: sequentially performing post-weld heat treatment on the odd-numbered segments, while sequentially welding the welding seams of the adjacent even-numbered segments of the odd-numbered segments; S6: finally, sequentially performing post-weld heat treatment on the even-numbered segments.

9. A dishwasher inner tank adopting the welding method of any one of claims 1-8, characterized in that: the splicing components comprise: a first splicing component comprising a bottom plate formed by bending a plate piece and two first side plates located on opposite sides of the bottom plate; a second splicing component and a third splicing component, which are two second side plates arranged on the two sides of the first splicing component; the two side edges of the bottom plate are respectively bent and extended outward to form first flanges, the lower edges of the two second side plates are respectively bent and extended downward to form second flanges, and the first flanges and the second flanges are fixedly welded together; the two side edges of the two first side plates are respectively bent and extended outward to form third flanges, the two side edges of the two second side plates are respectively bent and extended outward to form fourth flanges, and the third flanges and the fourth flanges are fixedly welded together.

10. The dishwasher inner tank according to claim 9, characterized in that: a mounting structure for supporting assembly is arranged on the flange structure, and the mounting structure comprises a mounting hole arranged on the flange structure.

Images