Door assembly structure and dishwasher

Abstract

The utility model relates to a door body assembly structure and dish washer, the assembly structure includes door body subassembly, outer glass door board, inner glass door board and the connecting frame that will fix inner glass door board on door body subassembly, through the integrated injection molding structure of inner door body and connecting frame, the outer periphery distribution of connecting frame surrounds inner glass door board, not only prevent the water vapor from the joint of inner glass door board and connecting frame outward leakage, and inner glass door board and connecting frame beforehand in injection molding link integration into a modular component, through setting up sealing washer between connecting frame and inner door body, sealing washer seals the clearance between connecting frame and inner door body, the door body assembly structure of the application, based on the cooperation of connecting frame and inner door body, inner glass door board and sealing washer, not only avoid the water vapor to enter the cavity between outer glass door board and inner glass door board, but also prevent the water vapor of dish washer washing cavity from leaking in the door body, and the structure is reliable and simple to assemble.

Description

Technical Field

[0001] This utility model relates to the field of dishwasher technology, and in particular to a door assembly structure and a dishwasher. Background Technology

[0002] Currently, the installation structure of the transparent glass door of traditional dishwashers is generally installed using a sealing ring. However, this structure, which is only installed using a sealing ring, has low reliability and is prone to water and steam leakage. Alternatively, the inner door and glass are directly injection molded as a single piece. Since the inner door is a plastic part and is in direct contact with the water in the dishwasher, it is subject to thermal expansion and contraction. When the water inside the dishwasher is heated, the size of the inner door will increase, but the size of the glass will hardly be affected by thermal expansion and contraction, thus leading to water and steam leakage. Utility Model Content

[0003] Therefore, it is necessary to provide a door assembly structure and a dishwasher to address the aforementioned problems with dishwasher doors.

[0004] A door assembly structure includes a door assembly, an outer glass door panel, an inner glass door panel, and a connecting frame; The door assembly includes an outer door and an inner door, and the outer door and the inner door are detachably connected. The outer glass door panel is mounted on the outer door body or the connecting frame, and the inner glass door panel and the connecting frame are integrally injection molded, with the connecting frame distributed around the outer periphery of the inner glass door panel; The connecting frame is connected to the inner door body, and a sealing ring is provided between the connecting frame and the inner door body.

[0005] This application discloses a door assembly structure, including a door assembly, an outer glass door panel, an inner glass door panel, and a connecting frame for fixing the inner glass door panel to the door assembly. The door assembly includes an outer door and an inner door, with the inner door and the connecting frame integrally injection molded. The connecting frame is distributed around the outer periphery of the inner glass door panel, which not only enhances the overall structural strength and impact resistance of the inner glass door panel and prevents moisture leakage from the joint between the inner glass door panel and the connecting frame, but also pre-integrates the inner glass door panel and the connecting frame into a modular component during the injection molding process, simplifying the complexity of the door assembly structure during assembly. By setting a sealing ring between the connecting frame and the inner door, when the connecting frame and the inner door are connected by means such as bolts and / or snaps, the sealing ring seals the gap between the connecting frame and the inner door. The door assembly structure of this application, based on the cooperation of the connecting frame, the inner door, the inner glass door panel, and the sealing ring, not only prevents moisture from entering the cavity between the outer and inner glass door panels, but also prevents moisture from the dishwasher washing chamber from leaking out of the door, making the structure reliable and easy to assemble.

[0006] In one embodiment, the connecting frame and the inner door body are connected by screws. Because the connecting frame and the inner door body are connected by screws, during the tightening of the screws, the connection between the connecting frame and the inner door body is gradually tightened. A sealing ring is placed between the inner door body and the connecting frame, and the sealing ring undergoes elastic deformation to seal the gap between the connecting frame and the inner door body. Compared to a simple snap-fit ​​connection, the connection between the connecting frame and the inner door body using screws can apply a much greater locking force.

[0007] In one embodiment, the connecting frame has an annular first groove, and the sealing ring is disposed within the first groove, with at least a portion of the sealing ring protruding from the first groove and abutting against the inner door body. By installing the sealing ring within the first groove on the connecting frame, precise positioning of the sealing ring can be achieved simply by pressing it into the first groove during assembly, avoiding localized sealing failures caused by misalignment, twisting, or partial detachment of the sealing ring. Since at least a portion of the sealing ring protrudes beyond the first groove to contact the inner door body and form a seal, when the connecting frame and inner door body are tightened with screws, the pressure forces the exposed portion of the sealing ring to compress and deform. Because most of the sealing ring is confined within the first groove, a stable sealing layer is formed.

[0008] In one embodiment, the sealing ring includes a ring body and protrusions spaced apart at both ends of the ring body. One protrusion abuts against the first groove, and the other protrusion abuts against the inner door body. By having the protrusions at both ends of the ring body abut against the bottom of the first groove and the surface of the inner door body, respectively, under the same screw tightening force, the design of the protrusions reduces the contact area between the sealing ring and the bottom of the first groove and the surface of the inner door body, thus increasing the pressure acting on the protrusions. This allows the protrusions to undergo sufficient elastic deformation, enabling them to better conform to uneven areas on the contact surfaces. Furthermore, when the connecting frame and the inner door body experience slight displacement due to thermal expansion and contraction, the protrusions can more easily adapt to and adjust to the displacement of the connecting frame and the inner door body, continuously ensuring a sealing effect.

[0009] In one embodiment, the connecting frame is sandwiched between the inner door body and the outer door body and / or the outer glass door panel. The connecting frame has a first through hole, and the inner door body has a threaded hole. The screw passes through the first through hole and connects with the threaded hole. By having the first through hole and threaded hole respectively on the connecting frame and the inner door body, and by sandwiching the connecting frame between the inner door body and the outer door body and / or the outer glass door panel, and by connecting the screw through the first through hole and connecting with the threaded hole on the inner door body, a detachable connection between the connecting frame and the inner door body is achieved. Furthermore, the screw is hidden inside the door assembly structure, avoiding any impact on the door's aesthetics.

[0010] In one embodiment, the connecting frame has a mounting groove coaxially arranged with the first through hole, and the depth of the mounting groove is greater than the thickness of the screw nut. Because the depth of the mounting groove is greater than the thickness of the screw nut, when the screw is tightened, the nut on the screw can be completely sunk into the mounting groove and will not protrude from the surface of the connecting frame, preventing the protruding nut from contacting the outer door body or outer glass door panel.

[0011] In one embodiment, the connecting frame is made of plastic or rubber. By using plastic or rubber for the connecting frame, it effectively ensures that the connecting frame and the inner glass door panel are integrally injection molded. Molten plastic or rubber is injected under high pressure and wraps around the edges of the inner glass door panel, forming a robust whole after cooling. Furthermore, when the dishwasher operates and the internal temperature changes, the inner door body expands or contracts. Because the material of the connecting frame allows it to expand or contract synchronously with the inner door body at almost the same rate and amplitude, it ensures that the sealing effect between the two remains relatively stable.

[0012] In one embodiment, a first snap-fit ​​structure is provided between the outer door and the inner door, and the outer door is snapped onto the inner door through the first snap-fit ​​structure.

[0013] In one embodiment, a second snap-fit ​​structure is provided between the outer door and the connecting frame, and the outer door is snapped onto the connecting frame by the second snap-fit ​​structure.

[0014] In one embodiment, the outer glass door panel is fixed to the connecting frame by adhesive. This embodiment further specifies that the outer glass door panel is fixed to the connecting frame by adhesive. Based on this, it avoids creating holes for fixing or installing obvious clip structures on the outer glass door panel, resulting in an extremely simple and modern appearance for the dishwasher, significantly enhancing the overall quality and visual appeal of the product. Moreover, the adhesive method forms a sealing layer between the outer glass door panel and the connecting frame, effectively preventing external dust and moisture from entering the cavity formed between the outer and inner glass door panels.

[0015] A dishwasher comprising the door assembly structure described in any of the preceding claims. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the door assembly structure in one embodiment; Figure 2 This is an exploded view of the door assembly structure in one embodiment; Figure 3 A cross-section of the door assembly structure in one embodiment. Figure 1 ; Figure 4for Figure 3 Enlarged view of section A in the middle; Figure 5 A cross-section of the door assembly structure in one embodiment. Figure 2 ; Figure 6 for Figure 5 Enlarged view of section B in the middle.

[0017] The correspondence between the reference numerals and the component names is as follows: 10 Door assembly, 11 Outer door, 12 Inner door, 110 First limiting part, 120 Second limiting part, 101 Threaded hole, 102 First slot, 103 Second slot; 20mm exterior glass door panel, 30mm interior glass door panel; 40 Connecting frame, 401 First groove, 402 First through hole, 403 Assembly slot; 50. Sealing ring; 51. Ring body; 52. Raised dot. 60 screws. Detailed Implementation

[0018] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0019] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the scope of protection of the invention is not limited to the specific embodiments disclosed below.

[0020] The door assembly structure of some embodiments of the present invention is described below with reference to the accompanying drawings.

[0021] like Figures 1 to 6 As shown, this embodiment discloses a door assembly structure, including a door assembly 10, an outer glass door panel 20, an inner glass door panel 30, and a connecting frame 40. The door assembly 10 includes an outer door 11 and an inner door 12, and the outer door 11 and the inner door 12 are detachably connected. The outer glass door panel 20 is set on the outer door body 11 or the connecting frame 40, and the inner glass door panel 30 and the connecting frame 40 are integrally injection molded, with the connecting frame 40 distributed around the outer periphery of the inner glass door panel 30. The connecting frame 40 is connected to the inner door body 12, and a sealing ring 50 is provided between the connecting frame 40 and the inner door body 12.

[0022] This application discloses a door assembly structure, including a door assembly 10, an outer glass door panel 20, an inner glass door panel 30, and a connecting frame 40 for fixing the inner glass door panel 30 to the door assembly 10. The door assembly 10 includes an outer door body 11 and an inner door body 12. The inner door body 12 and the connecting frame 40 are integrally injection molded. The connecting frame 40 is distributed around the outer periphery of the inner glass door panel 30, which not only enhances the overall structural strength and impact resistance of the inner glass door panel 30 and prevents moisture leakage from the joint between the inner glass door panel 30 and the connecting frame 40, but also integrates the inner glass door panel 30 and the connecting frame 40 in the injection molding process. A modular component simplifies the assembly complexity of the door assembly structure. By setting a sealing ring 50 between the connecting frame 40 and the inner door 12, the sealing ring 50 seals the gap between the connecting frame 40 and the inner door 12 when they are connected by means such as bolts and / or snaps. The door assembly structure of this application, based on the cooperation of the connecting frame 40, the inner door 12, the inner glass door panel 30, and the sealing ring 50, not only prevents moisture from entering the cavity between the outer glass door panel 20 and the inner glass door panel 30, but also prevents moisture from leaking from the dishwasher washing chamber into the door. The structure is reliable and the assembly is simple.

[0023] The outer door 11 and the inner door 12 can be detachably connected by one or a combination of bolts, clips, or adhesive. The outer door 11 and the inner door 12 are connected to form the main frame of the door, and both the outer door 11 and the inner door 12 are hollow frame shell structures.

[0024] The inner glass door panel 30 and the connecting frame 40 can be an integrally injection-molded composite structure. For example, the integral injection molding of the inner glass door panel 30 and the connecting frame 40 can be achieved by placing the inner glass door panel 30 as an insert into an injection mold, and then injecting molten plastic to form it around the glass, thereby firmly combining the inner glass door panel 30 and the connecting frame 40 into a single unit. Based on the integral injection molding of the inner glass door panel 30 and the connecting frame 40 to form a composite door structure, it ensures a better fit between the edge of the inner glass door panel 30 and the surface of the inner door body 12, fundamentally preventing moisture leakage from the joint between the inner glass door panel 30 and the inner door body 12.

[0025] The connecting frame 40 and the inner door body 12 can be connected by bolts and / or clips.

[0026] like Figure 5 and Figure 6 As shown, in addition to the features of the above embodiments, this embodiment further specifies that the connecting frame 40 and the inner door body 12 are connected by screws 60.

[0027] The above embodiment further specifies that the connecting frame 40 and the inner door body 12 are connected by screws 60. Based on this, during the tightening of screws 60, the connecting frame 40 and the inner door body 12 are gradually tightened. A sealing ring 50 is placed between the inner door body 12 and the connecting frame 40. The sealing ring 50 undergoes elastic deformation to seal the gap between the connecting frame 40 and the inner door body 12. Compared with a simple snap-fit ​​connection, the connection between the connecting frame 40 and the inner door body 12 by screws 60 can apply a large locking force.

[0028] like Figures 3 to 6 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: a first annular groove 401 is provided on the connecting frame 40, a sealing ring 50 is disposed in the first groove 401, and the sealing ring 50 is at least partially exposed outside the first groove 401 and abuts against the inner door body 12.

[0029] The above embodiment further defines that the sealing ring 50 is installed in the first groove 401 on the connecting frame 40. During the assembly process, the sealing ring 50 can be accurately positioned by simply pressing it into the first groove 401, avoiding the problem of partial sealing failure caused by the sealing ring 50 being misplaced, twisted, or partially detached. Since at least a part of the sealing ring 50 protrudes outside the first groove 401 to contact the inner door body 12 and form a seal, when the connecting frame 40 and the inner door body 12 are tightened by the screw 60, the pressure will force the exposed part of the sealing ring 50 to compress and deform. Since most of the sealing ring 50 is confined in the first groove 401, a stable sealing layer is formed.

[0030] like Figures 4 to 6 As shown, in addition to the features of the above embodiments, this embodiment further defines that: the sealing ring 50 includes a ring body 51 and protrusions 52 spaced apart on both ends of the ring body 51, wherein one end of the protrusion 52 abuts against the first groove 401, and the other end of the protrusion 52 abuts against the inner door body 12.

[0031] The above embodiment further defines that the protrusions 52 at both ends of the ring 51 abut against the bottom of the first groove 401 and the surface of the inner door 12, respectively. Under the same screw 60 tightening force, the design of the protrusions 52 reduces the contact area between the sealing ring 50 and the bottom of the first groove 401 and the surface of the inner door 12, thereby increasing the pressure acting on the protrusions 52. The protrusions 52 can undergo sufficient elastic deformation, so that the protrusions 52 can better fit the uneven parts of the contact surface. In addition, when the connecting frame 40 and the inner door 12 undergo slight displacement due to thermal expansion and contraction, the protrusions 52 can more easily adapt to the displacement of the connecting frame 40 and the inner door 12 and make adjustments, continuously ensuring the sealing effect.

[0032] like Figure 4 and Figure 6 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the connecting frame 40 is sandwiched between the inner door body 12 and the outer door body 11 and / or the outer door body 11, the connecting frame 40 is provided with a first through hole 402, the inner door body 12 is provided with a threaded hole 101, and the screw 60 passes through the first through hole 402 and is threadedly connected to the threaded hole 101.

[0033] The above embodiment further specifies that the connecting frame 40 and the inner door 12 are respectively provided with a first through hole 402 and a threaded hole 101. The connecting frame 40 is clamped between the inner door 12 and the outer door 11 and / or the outer glass door panel 20. The screw 60 passes through the first through hole 402 and connects with the threaded hole 101 on the inner door 12, thereby realizing the detachable connection between the connecting frame 40 and the inner door 12. Moreover, the screw 60 is hidden inside the door assembly structure to avoid affecting the aesthetics of the door.

[0034] It should be noted that there are multiple first through holes 402, which are distributed at intervals on the connecting frame 40, and the number of threaded holes 101 on the inner door body 12 is the same as the number of first through holes 402 and they are distributed in a one-to-one correspondence.

[0035] like Figure 4 and Figure 5 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the connecting frame 40 is provided with an assembly groove 403 coaxially arranged with the first through hole 402, and the depth of the assembly groove 403 is greater than the thickness of the nut of the screw 60.

[0036] The above embodiment further limits the depth of the assembly groove 403 to be greater than the thickness of the screw 60 nut. When the screw 60 is tightened, the nut on the screw 60 can be completely sunk into the assembly groove 403 and will not protrude from the surface of the connecting frame 40, thus preventing the protruding nut from contacting the outer door body 11 or the outer glass door panel 20.

[0037] In addition to the features of the above embodiments, this embodiment further specifies that the connecting frame 40 is made of plastic or rubber.

[0038] The above embodiments further specify that the material of the connecting frame 40 is plastic or rubber, which effectively ensures that the connecting frame 40 and the inner glass door panel 30 are integrally injection molded. Molten plastic or rubber is injected under high pressure and wraps the edge of the inner glass door panel 30, forming a solid whole after cooling. In addition, when the internal temperature changes during the operation of the dishwasher, the inner door 12 will expand or contract. Based on the material of the connecting frame 40, it can expand or contract synchronously with the inner door 12 at almost the same rate and amplitude, ensuring that the sealing effect between the two remains relatively stable.

[0039] like Figure 3and Figure 4 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: a first snap-fit ​​structure is provided between the outer door body 11 and the inner door body 12, and the outer door body 11 is snapped to the inner door body 12 through the first snap-fit ​​structure.

[0040] The inner door 12 has a first slot 102, and the outer door 11 has a first limiting part 110. The first limiting part 110 and the first slot 102 cooperate to form a first buckle structure. Specifically, after the assembly of the connecting frame 40 and the inner glass door panel 30 is assembled with the inner door 12, the inner door 12 and the outer door 11 are assembled through the cooperation of the first limiting part 110 and the first slot 102.

[0041] like Figure 3 and Figure 4 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: a second snap-fit ​​structure is provided between the outer door body 11 and the connecting frame 40, and the outer door body 11 is snapped onto the connecting frame 40 through the second snap-fit ​​structure.

[0042] The outer door 11 has a second slot 103, and the connecting frame 40 has a second limiting part 120. The second limiting part 120 and the second slot 103 cooperate to form a second buckle structure.

[0043] In addition to the features of the above embodiments, this embodiment further specifies that the outer glass door panel 20 is fixed to the connecting frame 40 by adhesive.

[0044] The above embodiments further specify that the outer glass door panel 20 is fixed to the connecting frame 40 by adhesive. Based on this, it avoids opening holes for fixing or installing obvious buckle structures on the outer glass door panel 20, making the appearance of the corresponding dishwasher product extremely simple and modern, significantly improving the overall grade and visual appeal of the product. Moreover, the adhesive method can form a sealing layer between the outer glass door panel 20 and the connecting frame 40, which can effectively prevent external dust, moisture and other substances from entering the cavity formed between the outer glass door panel 20 and the inner glass door panel 30.

[0045] This embodiment provides a dishwasher, including the door assembly structure described above.

[0046] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0047] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A door assembly structure, characterized in that, It includes a door assembly (10), an outer glass door panel (20), an inner glass door panel (30), and a connecting frame (40); The door assembly (10) includes an outer door (11) and an inner door (12), wherein the outer door (11) and the inner door (12) are detachably connected; The outer glass door panel (20) is disposed on the outer door body (11) or the connecting frame (40), the inner glass door panel (30) and the connecting frame (40) are integrally injection molded, and the connecting frame (40) is distributed on the outer periphery of the inner glass door panel (30); The connecting frame (40) is connected to the inner door body (12), and a sealing ring (50) is provided between the connecting frame (40) and the inner door body (12).

2. The door assembly structure according to claim 1, characterized in that, The connecting frame (40) is connected to the inner door body (12) by screws (60).

3. The door assembly structure according to claim 2, characterized in that, The connecting frame (40) has an annular first groove (401), the sealing ring (50) is disposed in the first groove (401), and the sealing ring (50) is at least partially exposed outside the first groove (401) and abuts against the inner door body (12).

4. The door assembly structure according to claim 3, characterized in that, The sealing ring (50) includes a ring body (51) and protrusions (52) spaced apart at both ends of the ring body (51), wherein one end of the protrusion (52) abuts against the first groove (401), and the other end of the protrusion (52) abuts against the inner door body (12).

5. The door assembly structure according to claim 2, characterized in that, The connecting frame (40) is sandwiched between the inner door body (12) and the outer door body (11) and / or the outer door body (11). The connecting frame (40) has a first through hole (402), and the inner door body (12) has a threaded hole (101). The screw (60) passes through the first through hole (402) and is threadedly connected to the threaded hole (101).

6. The door assembly structure according to claim 5, characterized in that, The connecting frame (40) has an assembly groove (403) coaxially arranged with the first through hole (402), and the depth of the assembly groove (403) is greater than the thickness of the nut of the screw (60).

7. The door assembly structure according to claim 1, characterized in that, The connecting frame (40) is made of plastic or rubber.

8. The door assembly structure according to any one of claims 1-7, characterized in that, A first snap-fit ​​structure is provided between the outer door body (11) and the inner door body (12), and the outer door body (11) is snapped to the inner door body (12) through the first snap-fit ​​structure; And / or, A second snap-fit ​​structure is provided between the outer door body (11) and the connecting frame (40), and the outer door body (11) is snapped onto the connecting frame (40) through the second snap-fit ​​structure.

9. The door assembly structure according to claim 1, characterized in that, The outer glass door panel (20) is fixed to the connecting frame (40) by adhesive.

10. A dishwasher, characterized in that, Includes the door assembly structure described in any one of claims 1-9 above.

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