Self-fixing door decoration strip structure and refrigerator door body

Abstract

The embodiment of the invention discloses a self-fixing door decoration strip structure and a refrigerator door body. The structure comprises a door body end cover and door body decorative strips connected with the two ends of the door body end cover in parallel. Hooks are arranged at the two ends of the door body end cover in the length direction, and a decoration strip bayonet matched with the door body decoration strip is arranged on the door body decoration strip. And sealing convex edges are arranged at two end edges of the door body end cover. During installation, the hook is buckled with the decoration strip bayonet, the end portion of the door body decoration strip is tightly pulled and pressed on the sealing convex edge to achieve sealing, and foaming and foam leakage are effectively prevented. According to the structure, a first inserting groove, a second inserting groove and a third inserting groove which are formed in the door body end cover are matched with a first inserting strip, a second inserting strip and a third inserting strip on the door body decoration strip in an inserted mode, multi-direction limiting and interlocking are formed, and the connecting strength and the deformation resistance are enhanced. The structure is simple, reliable sealing and fixing can be achieved only through the hooks at the two ends, the mold complexity and the production cost are reduced, meanwhile, assembling is easy and convenient, and the production efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of refrigerator technology, and in particular to a self-fixing door trim structure and a refrigerator door. Background Technology

[0002] The common refrigerator door body generally consists of a rectangular frame assembled from four end caps or trim strips.

[0003] Most refrigerator door end caps and trim strips on the market are assembled by direct pressing, and are fixed with tape. This makes it easy for the end caps and trim strips to not seal properly.

[0004] In addition, during the foaming process, gaps may easily be left at the joints between the end caps, trim strips, and door panels. Due to poor sealing, foam leakage may occur at the joints.

[0005] To address this, existing technologies employ injection-molded or plastic parts with complex sealing structures at the joints to prevent leakage. However, this approach complicates the refrigerator door assembly process and results in injection-molded parts having lower strength and a shorter lifespan. While using sheet metal parts to manufacture the refrigerator door increases strength, the limitations of sheet metal processing (such as bending and cutting) prevent the creation of complex sealing structures, leading to poor sealing performance.

[0006] For example, patent CN112432421A, entitled "A Refrigerator Door Structure," discloses a refrigerator door, mainly comprising a door frame, a glass panel, and a door liner. The door frame includes end stops on the left and right sides forming a rectangular structure and decorative strips on the top and bottom sides. The end stops are sheet metal parts, including end plates, side plates, and end stop flanges. The end plates, side plates, and end stop flanges form an end stop groove. The top and bottom ends of the end stop groove are provided with end stop inserts that are adapted to the end stop groove. The top and bottom ends of the end stop are connected to the corresponding decorative strips through the end stop inserts. The door liner is pressed onto one side of the door frame, and the glass panel is pressed onto the other side of the door frame. A foaming chamber is formed between the door frame, the glass panel, and the door liner.

[0007] In the aforementioned document, the end-stop insert and trim strip are connected using a combination of plug-in, hook positioning, and screw fixing. While the hook design saves assembly time, the use of screws for fixing still increases assembly time and reduces assembly efficiency.

[0008] In addition, the trim hooks in the aforementioned prior art document CN112432421A are multiple, which undoubtedly increases the complexity of the mold and the manufacturing cost of the mold when manufacturing the trim hooks. Summary of the Invention

[0009] This invention provides a self-fixing door trim structure and a refrigerator door body, aiming to solve the problems in the prior art where the end cap and trim of the refrigerator door body are not sealed tightly, and leakage is easy after foaming, or although the end cap and trim are sealed tightly, the structure is complex, resulting in high production costs and low assembly efficiency.

[0010] To achieve the above objectives, the present invention adopts the following technical solution: In a first aspect, embodiments of the present invention provide a self-fixing door trim structure, comprising: a door end cap and a door trim connected to and parallel to both ends of the door end cap; Hooks are provided at both ends of the door end cap along its length, and decorative strips on the door are provided with decorative strip slots that cooperate with the hooks; Both ends of the door end cap are provided with sealing protrusions. When the trim clip is engaged with the hook, the end of the door trim engages with the sealing protrusion.

[0011] In one embodiment, the door end cap is provided with a first slot along the length of the door trim strip, and the door trim strip is provided with a first insert that mates with the first slot; The hook is disposed at the opening of the first slot; the trim clip is disposed on the first insert.

[0012] In one embodiment, the door end cover includes an end cover plate, and a first longitudinal plate and a second longitudinal plate perpendicular to the end cover plate are provided at one end along the length direction of the end cover plate; the first longitudinal plate and the second longitudinal plate are arranged along the width direction of the end cover plate; The end of the second longitudinal plate away from the first longitudinal plate is connected to the first transverse plate; The first horizontal plate, the first vertical plate, and the second vertical plate are spaced apart from the edge of the end cover plate to form the sealing convex edge.

[0013] In one embodiment, a second transverse plate is provided at the end of the second longitudinal plate near the end of the first longitudinal plate; A third horizontal plate is provided at the end of the first vertical plate near the second vertical plate; the third horizontal plate cooperates with the second horizontal plate to form the first slot.

[0014] In one embodiment, a second slot is provided at the end of the first slot away from the first vertical plate, and the second slot is perpendicular to the first slot; A second insert is provided on the side of the first insert away from the door trim strip, and the second insert is perpendicular to the first insert; the second insert is adapted to the second slot.

[0015] In one embodiment, a fourth longitudinal plate is provided at the end of the second horizontal plate away from the second vertical plate; The third horizontal plate is provided at the end away from the first vertical plate; The third longitudinal plate and the fourth longitudinal plate are connected by the fourth transverse plate; The third vertical plate, the fourth horizontal plate, and the fourth vertical plate cooperate to form the second slot.

[0016] In one embodiment, the hook is disposed on the second horizontal plate and is oriented toward the third horizontal plate.

[0017] In one embodiment, a third slot is provided at the end of the first horizontal plate away from the second vertical plate; the third slot is parallel to the second slot. The door trim is provided with a third insert that mates with the third slot.

[0018] In one embodiment, the first insert, the second insert, and the third insert all have chamfered edges near the end cover plate.

[0019] Secondly, embodiments of the present invention also provide a refrigerator door body, including the aforementioned self-fixing door trim structure.

[0020] The beneficial effects of this invention compared to the prior art are: (1) This application provides sealing protrusions at both ends of the door end cap along its length. When the trim clip engages with the hook, the hook can limit the length of the door trim, allowing the end of the door trim to abut tightly against the sealing protrusion, thus creating a tight fit between the door trim and the door end cap. This effectively prevents foam leakage during the foaming process.

[0021] (2) This application can achieve a good sealing effect by setting only one hook at each end of the door end cover in the length direction, which can effectively reduce the complexity of the mold, reduce the mold development cost, and thus reduce the production cost.

[0022] (3) In the assembly process of this application, it is only necessary to align the edge of the door trim with the sealing protrusion of the end cap of the door, and then match the hook with the corresponding trim slot to realize the matching installation of the door trim and the hook, reduce the difficulty of installation, effectively improve the installation efficiency, and reduce the production cost.

[0023] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention, it can be implemented according to the contents of the specification. In order to make the above and other objects, features and advantages of the present invention more obvious and understandable, preferred embodiments are described in detail below. Attached Figure Description

[0024] Figure 1 This invention provides a three-dimensional structure for the door trim and door end cap to fit together, which is a self-fixing door trim structure. Figure 2 for Figure 1 A magnified view of a portion of region A in the middle; Figure 3 for Figure 2 A magnified view of a portion of region B in the middle; Figure 4 A three-dimensional structural diagram of a door trim structure with a self-fixing door trim provided in an embodiment of the present invention; Figure 5 for Figure 4 A magnified view of a portion of region C in the middle; Figure 6 for Figure 5 A magnified view of a portion of region D in the middle; Figure 7 An exploded view of a door trim and door end cap of a self-fixing door trim structure provided in an embodiment of the present invention; Figure 8 for Figure 7 A magnified view of a portion of region E in the middle; Figure 9 for Figure 7 A magnified view of a portion of region F in the middle; Figure 10 for Figure 9 A magnified view of a portion of region G in the middle.

[0025] Figure label: 1. Door end cap; 11. First slot; 12. Second slot; 13. Third slot; 14. Sealing protrusion; 2. Door trim strip; 21. First insert strip; 22. Second insert strip; 23. Third insert strip; 3. Hooks; 4. Decorative strip mounting; 5. End cover plate, 51. First longitudinal plate, 52. Second longitudinal plate, 53. Third longitudinal plate, 54. Fourth longitudinal plate, 55. First transverse plate, 56. Second transverse plate, 57. Third transverse plate, 58. Fourth transverse plate. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0028] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0029] It should also be further understood that the term "and / or" as used in this specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0030] Please see Figure 1-10 The present invention provides a self-fixing door trim structure, including: a door end cap 1 and a door trim 2 connected to both ends of the door end cap 1 and arranged in parallel; Hooks 3 are provided at both ends of the door end cap 1 along its length, and decorative strip 2 is provided with decorative strip slots 4 that cooperate with the hooks 3; The edges of both ends of the door end cap 1 are provided with sealing protrusions 14. When the trim clip 4 is engaged with the hook 3, the end of the door trim 2 is engaged with the sealing protrusions 14.

[0031] In this application, sealing protrusions 14 are provided on both ends of the door end cap 1 along its length. When the trim clip 4 engages with the hook 3, the hook 3 can limit the length of the door trim 2, allowing the end of the door trim 2 to tightly abut against the sealing protrusions 14, thus forming a tight fit between the door trim 2 and the door end cap 1. This effectively prevents foam leakage during the foaming process.

[0032] This application has a simple structure. Only one hook 3 is set at each end of the door end cover 1 along the length direction, which can achieve a good sealing effect. It can effectively reduce the complexity of the mold, reduce the mold development cost, and thus reduce the production cost.

[0033] During assembly, simply align the edge of the door trim 2 with the sealing protrusion 14 at the end of the door end cover 1, and then mate the hook 3 with the corresponding trim snap 4 to achieve the matching installation of the door trim 2 and the hook 3, reducing the difficulty of installation, effectively improving the efficiency of installation, and reducing production costs.

[0034] In one embodiment, such as Figure 4 and Figure 5 As shown, the door end cap 1 is provided with a first slot 11 arranged along the length direction of the door trim 2, and the door trim 2 is provided with a first insert 21 that cooperates with the first slot 11; The hook 3 is disposed at the opening of the first slot 11; the trim clip 4 is disposed on the first insert 21.

[0035] In this embodiment, a first slot 11 is provided on the door end cover 1. When the door trim 2 is assembled with the door end cover 1, the first insert 21 is inserted into the first slot 11. After the first insert 21 and the first slot 11 are fully engaged, the hook 3 is engaged into the trim slot 4.

[0036] In this embodiment, the first slot 11 and the first insert 21 cooperate to guide the door trim 2, allowing it to better engage with the sealing protrusion 14. Simultaneously, after the first slot 11 is inserted into the first insert 21, the cooperation of the first slot 11 and the first insert 21 limits the door trim 2, preventing it from moving in either the width or length direction of the door end cap 1. Combined with the hook 3 and trim clip 4 limiting the length of the door trim 2, this provides comprehensive control over the door trim 2.

[0037] In a further embodiment, such as Figure 5 and Figure 6 As shown, the door end cover 1 includes an end cover plate 5. One end of the end cover plate 5 in the length direction is provided with a first longitudinal plate 51 and a second longitudinal plate 52 perpendicular to the end cover plate 5. The first longitudinal plate 51 and the second longitudinal plate 52 are arranged along the width direction of the end cover plate 5. The end of the second longitudinal plate 52 away from the first longitudinal plate 51 is connected to the first transverse plate 55; The first horizontal plate 55, the first vertical plate 51, and the second vertical plate 52 are separated from the edge of the end cover plate 5 by a certain distance, which together form the sealing protrusion 14.

[0038] The sealing protrusion 14 in this application is mainly formed by the cooperation of the first longitudinal plate 51, the second longitudinal plate 52, the first transverse plate 55 and the end cover plate 5.

[0039] When the door trim 2 is fitted with the door end cap 1, the inner wall of the door trim 2 is in contact with the outer walls of the first longitudinal plate 51, the second longitudinal plate 52, and the first transverse plate 55, and the end of the door trim 2 abuts against the sealing protrusion 14. Therefore, in order to make the overall structure more aesthetically pleasing after the door trim 2 is fitted with the door end cap 1, the thickness of the end of the door trim 2 should be adapted to the width of the sealing protrusion 14.

[0040] In a further embodiment, a second horizontal plate 56 is provided at the end of the second vertical plate 52 near the end of the first vertical plate 51. A third horizontal plate 57 is provided at the end of the first vertical plate 51 near the end of the second vertical plate 52; the third horizontal plate 57 cooperates with the second horizontal plate 56 to form the first slot 11.

[0041] The first slot 11 in this application is formed by the cooperation of the third horizontal plate 57 and the second horizontal plate 56. A gap is left between the first vertical plate 51 and the second vertical plate 52 to form the first slot 11, so that the first insert 21 can be integrally formed with the door trim 2. This improves the strength of the door trim 2 and extends the service life of the overall structure.

[0042] In a further embodiment, such as Figure 6 As shown, a second slot 12 is provided at the end of the first slot 11 away from the first vertical plate 51, and the second slot 12 is perpendicular to the first slot 11; A second insert 22 is provided on the side of the first insert 21 away from the door trim 2, and the second insert 22 is perpendicular to the first insert 21; the second insert 22 is adapted to the second slot 12.

[0043] In this application, a second slot 12 is provided at the end of the first slot 11 away from the first longitudinal plate 51 and the second longitudinal plate 52. The second insert 22 cooperates with the second slot 12, which not only improves the limiting ability of the door trim 2 in the length and width directions of the door end cover 1, but also forms a hook groove with the first slot 11 and the second slot 12, and forms a second hook with the first insert 21 and the second insert 22. Thus, when the door trim 2 is engaged with the door end cover 1, an interlocking structure can be formed with the first slot 11 and the first insert 21 engaged, and the second slot 12 and the second insert 22 engaged, which improves the ability to resist the easy deformation of the door trim 2 during foaming, thereby further improving the sealing between the door trim 2 and the door end cover 1 and improving the strength of the overall structure after assembly.

[0044] In a further embodiment, a fourth longitudinal plate 54 is provided at the end of the second horizontal plate 56 away from the second vertical plate 52; The end of the third horizontal plate 57 away from the first vertical plate 51 is provided with a third vertical plate 53; The third longitudinal plate 53 and the fourth longitudinal plate 54 are connected by the fourth transverse plate 58; The third vertical plate 53, the fourth horizontal plate 58, and the fourth vertical plate 54 cooperate to form the second slot 12.

[0045] In this embodiment, the first slot 11 and the second slot 12 are formed by the cooperation of the third horizontal plate 57, the third vertical plate 53, the fourth horizontal plate 58, the fourth vertical plate 54, and the second horizontal plate 56. The first vertical plate 51, the third horizontal plate 57, the third vertical plate 53, the fourth horizontal plate 58, the fourth vertical plate 54, the second horizontal plate 56, the second vertical plate 52, and the first horizontal plate 55 are integrally formed with the end cover plate 5, which can improve the overall strength and the strength of the first slot 11 and the second slot 12.

[0046] In a further embodiment, the hook 3 is disposed on the second horizontal plate 56 and is disposed toward the third horizontal plate 57.

[0047] In a further embodiment, a third slot 13 is provided at the end of the first horizontal plate 55 away from the second vertical plate 52; the third slot 13 is parallel to the second slot 12; The door trim 2 is provided with a third insert 23 that mates with the third slot 13.

[0048] like Figure 6 , Figure 8 As shown, in this embodiment, a third slot 13 is provided at the end of the first horizontal plate 55 away from the second vertical plate 52. The third insert 23 cooperates with the third slot 13, which can limit the door trim 2 in the length direction of the door end cover 1, and can further improve the strength of the door trim 2 and the door end cover 1 after they are in contact.

[0049] In this embodiment, the third slot 13 is formed by bending the first horizontal plate 55. That is to say, the horizontal and vertical plate structures that form the first slot 11, the second slot 12, and the third slot 13 are all integrally formed, which makes the overall structure stronger.

[0050] In a further embodiment, in order to facilitate the insertion of the first insert 21 into the first slot 11, the second insert 22 into the second slot 12, and the third insert 23 into the third slot 13, a chamfered structure is provided at the end edges of the first insert 21, the second insert 22, and the third insert 23 near the end cover plate 5.

[0051] The chamfered structure facilitates the insertion of the first insert 21 into the first slot 11, the second insert 22 into the second slot 12, and the third insert 23 into the third slot 13.

[0052] In addition, chamfered structures are also provided at the openings of the first slot 11, the second slot 12, and the third slot 13. This further facilitates the connection between the first insert 21 and the first slot 11, the second insert 22 and the second slot 12, and the third insert 23 and the third slot 13.

[0053] In another embodiment, the present invention also provides a refrigerator door body, including the above-described self-fixing door trim structure.

[0054] The working principle of the self-fixing door trim structure provided by this invention is as follows: (1) Main positioning and sealing The end of the door trim strip 2 directly abuts against the sealing protrusion 14 of the edge of the door end cover 1, forming the first sealing interface.

[0055] By engaging the hooks 3 at both ends of the door end cap 1 with the trim clips 4 on the door trim 2, a pulling force is applied to the door trim 2 in the length direction, forcing its ends to be tightly pressed against the sealing protrusion 14, thereby ensuring the sealing of the joint and preventing leakage of foaming liquid.

[0056] The first slot 11 and the first insert 21 cooperate to achieve the initial positioning and constraint of the door trim 2 in the width and length directions, and guide it to be accurately aligned with the sealing protrusion 14.

[0057] The vertical insertion of the second slot 12 and the second insert 22 further restricts the movement of the door trim 2, and together with the first slot 11 and the first insert 21, forms an "L"-shaped or similar interlocking structure, which greatly enhances the ability to resist deformation.

[0058] The third slot 13 and the third insert 23 work together to provide additional length direction limiting on the other side, making the overall connection more balanced and stable.

[0059] During assembly, follow the logic of first aligning, then inserting, and finally snapping together. First, align the end of the door trim strip 2 with the sealing protrusion 14, then insert the first insert strip 21, the second insert strip 22, and the third insert strip 23 into the first slot 11, the second slot 12, and the third slot 13 respectively, and finally snap the hook 3 into the trim strip slot 4 to complete the installation.

[0060] Compared with the prior art, this application has the following advantages: (1) Excellent sealing performance The unique combination of "sealing protruding edge 14 + hook 3 tightening" effectively ensures the tightness of the joint between the end of the door trim strip 2 and the door end cover 1, fundamentally avoiding the "leaking" problem in the foaming process and guaranteeing product quality.

[0061] (2) The structure is stable and has strong resistance to deformation. A multi-level, multi-directional plug-in structure is adopted, such as the first slot 11, the second slot 12 and the third slot 13 cooperating with the first insert 21, the second insert 22 and the third insert 23 respectively, forming a spatial composite limit, so that the door trim 2 is constrained in the width, length and thickness directions.

[0062] In particular, the vertical interlock formed by the second slot 12 and the second insert 22 significantly improves the connection point's ability to resist deformation caused by foaming pressure or external stress, thereby enhancing the rigidity and durability of the overall structure.

[0063] (3) Easy to install and highly efficient The main fixing actions are simple and intuitive (alignment and snap-fit ​​in one go), which reduces the difficulty of assembly and the skill requirements of operators, thereby improving production and installation efficiency.

[0064] (4) Low mold and production costs The core sealing and fixing functions can be achieved simply by setting one hook 3 at each end. Compared to designs that may require multiple complex locking points, this greatly simplifies the mold structure of the door end cover 1. The reduction in mold complexity directly leads to a decrease in development and manufacturing costs.

[0065] (5) High degree of design integration and beautiful structure The plates forming the first slot 11, the second slot 12 and the third slot 13 are integrally molded with the end cover plate 5. This not only improves the strength and integrity of the parts themselves, but also makes the final assembled appearance neater and the gaps more uniform.

[0066] (6) Chamfering and other detailed designs further improve the smoothness of assembly.

[0067] In summary, this application provides a self-fixing door trim structure that, through a cleverly designed mechanical interlocking system, ensures excellent sealing and structural strength while achieving a simplified installation process and low manufacturing cost, making it an efficient, reliable, and economical solution.

[0068] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and these modifications or substitutions should all be covered within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A self-fixing door trim structure, characterized in that, include: Door end caps and door trim strips that are connected to and parallel to both ends of the door end caps; Hooks are provided at both ends of the door end cap along its length, and decorative strips on the door are provided with decorative strip slots that cooperate with the hooks; Both ends of the door end cap are provided with sealing protrusions. When the trim clip is engaged with the hook, the end of the door trim engages with the sealing protrusion.

2. The self-fixing door trim structure according to claim 1, characterized in that, The door end cap is provided with a first slot along the length of the door trim strip, and the door trim strip is provided with a first insert that mates with the first slot; The hook is disposed at the opening of the first slot; the trim clip is disposed on the first insert.

3. The self-fixing door trim structure according to claim 2, characterized in that, The door end cover includes an end cover plate, and one end of the end cover plate along its length is provided with a first longitudinal plate and a second longitudinal plate perpendicular to the end cover plate; the first longitudinal plate and the second longitudinal plate are arranged along the width direction of the end cover plate. The end of the second longitudinal plate away from the first longitudinal plate is connected to the first transverse plate; The first horizontal plate, the first vertical plate, and the second vertical plate are spaced apart from the edge of the end cover plate to form the sealing convex edge.

4. The self-fixing door trim structure according to claim 3, characterized in that, A second transverse plate is provided at the end of the second longitudinal plate near the end of the first longitudinal plate; A third horizontal plate is provided at the end of the first vertical plate near the second vertical plate; the third horizontal plate cooperates with the second horizontal plate to form the first slot.

5. The self-fixing door trim structure according to claim 4, characterized in that, A second slot is provided at the end of the first slot away from the first vertical plate, and the second slot is perpendicular to the first slot; A second insert is provided on the side of the first insert away from the door trim strip, and the second insert is perpendicular to the first insert; the second insert is adapted to the second slot.

6. The self-fixing door trim structure according to claim 5, characterized in that, A fourth longitudinal plate is provided at the end of the second horizontal plate away from the second vertical plate; The third horizontal plate is provided at the end away from the first vertical plate; The third longitudinal plate and the fourth longitudinal plate are connected by the fourth transverse plate; The third vertical plate, the fourth horizontal plate, and the fourth vertical plate cooperate to form the second slot.

7. The self-fixing door trim structure according to any one of claims 4 to 6, characterized in that, The hook is disposed on the second horizontal plate and is oriented toward the third horizontal plate.

8. The self-fixing door trim structure according to claim 5, characterized in that, A third slot is provided at the end of the first horizontal plate away from the second vertical plate; the third slot is parallel to the second slot. The door trim is provided with a third insert that mates with the third slot.

9. The self-fixing door trim structure according to claim 8, characterized in that, The first insert, the second insert, and the third insert all have chamfered edges near the end cover plate.

10. A refrigerator door, characterized in that, Includes the self-fixing door trim structure according to any one of claims 1 to 9.

Images