Door casing trim assembly

Abstract

The application provides a door shell decoration strip assembly structure, which comprises a door shell and a door lining arranged in parallel, and an upper decoration strip arranged between the door shell and the door lining. The upper decoration strip comprises a plurality of material blocking ribs protruding towards the door shell. The material blocking ribs comprise a first material blocking rib arranged away from the center of the door shell, and at least two second material blocking ribs arranged close to the door shell. The first material blocking rib is a continuous protrusion. The second material blocking rib is provided with a drainage groove communicating with all adjacent grooves at a fixed distance. The door shell decoration strip assembly structure disclosed by the application can prevent foaming material from overflowing to the outside of the door shell after being filled with foaming material, thereby solving the problem of foaming overflow between the door shell and the decoration strip. The drainage groove of the second material blocking rib guides the foaming material to flow uniformly in all directions, ensures the uniformity of the foaming material between the door shell and the upper decoration strip, and further ensures the firm bonding of the door shell and the upper decoration strip.

Description

Technical Field

[0001] This invention relates to the field of refrigeration appliances, and more particularly to a door shell trim assembly structure. Background Technology

[0002] Existing refrigeration equipment often suffers from foam overflow issues in its sheet metal door shells and trims. To reduce the occurrence of such defective products, during assembly, it is necessary to manually wrap a sponge strip around the corner where the door trim and door shell are assembled, and then use transparent tape to firmly fix the door shell and trim. However, the manual operation of applying anti-overflow sponge strips and pre-installing and fixing with tape is inefficient and lacks precision, and cannot effectively solve the problem of foam overflow in door shells and trims. Summary of the Invention

[0003] The purpose of this invention is to provide a door shell trim assembly structure to solve the above-mentioned problems.

[0004] To achieve the above-mentioned objective, one embodiment of the present invention provides a door shell trim assembly structure, including a door shell and a door liner arranged in parallel, and an upper trim installed between the door shell and the door liner. A cavity for filling with foam material is formed between the door shell, the door liner and the upper trim. The upper trim includes a plurality of baffles protruding toward the door shell. The baffles abut against the inner side of the door shell, and a groove for accommodating foam material is formed between adjacent baffles.

[0005] The baffle ribs include a first baffle rib located away from the center of the door shell, and at least two second baffle ribs located close to the door shell. The first baffle rib is a continuous protrusion, and the second baffle ribs are provided with drainage grooves that communicate with all adjacent grooves at fixed intervals.

[0006] As a further improvement of the present invention, the guide grooves of two adjacent second baffle ribs are staggered.

[0007] As a further improvement of the present invention, the upper trim strip includes a horizontally arranged horizontal portion and a bent portion extending downward along the end face of the horizontal portion toward the door shell, and the baffle rib is disposed in the bent portion.

[0008] As a further improvement of the present invention, the door shell includes a front portion arranged in a vertical direction, and a left end portion and a right end portion that are folded vertically along the left and right end faces of the front portion, respectively. The bending portion includes a first bending portion, a second bending portion and a third bending portion respectively provided corresponding to the front portion, the left end portion and the right end portion.

[0009] As a further improvement of the present invention, the upper trim strip also includes a relief groove disposed at the corner of the second bend and / or the third bend.

[0010] As a further improvement of the present invention, the upper end of the door shell is also provided with an extension portion extending horizontally along the front end face, and a flange portion extending outward and folding downward in the middle of the extension portion, wherein the ratio of the width of the flange portion to the width of the extension portion is in the range of 1 / 20 to 1 / 15.

[0011] As a further improvement of the present invention, the upper trim strip is provided with a mounting portion that abuts against the extension portion and a snap-fit ​​portion that cooperates with the flange portion.

[0012] As a further improvement of the present invention, the latching part consists of two protrusions that are obliquely raised on the surface of the horizontal part.

[0013] As a further improvement of the present invention, the drainage channel is a channel with a length of 3 mm and a depth of 0.5 mm.

[0014] As a further improvement of the present invention, the door liner includes a door liner boss disposed toward the upper trim strip, and the upper trim strip is further provided with a flexible hinge that abuts against the door liner boss.

[0015] Compared with the prior art, the door shell trim assembly structure disclosed in this invention has a first baffle rib and a second baffle rib on the upper trim. The first baffle rib is a continuous protrusion, and the second baffle rib has a drainage groove at fixed intervals. When foam material is filled, the first baffle rib prevents the foam material from overflowing to the outside of the door shell, thereby solving the problem of foam overflow between the door shell and the trim. Moreover, it eliminates the need for manual wrapping of sponge strips, resulting in higher production efficiency. In addition, the drainage groove of the second baffle rib guides the foam material to flow evenly in all directions, ensuring the uniformity of the foam material between the door shell and the upper trim, thus ensuring a firm bond between the door shell and the upper trim. At the same time, the drainage groove prevents air trapping during foaming, ensuring the filling of foam material at the corners, further ensuring a firm bond between the door shell and the upper trim. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of the door shell trim assembly structure according to an embodiment of the present invention;

[0017] Figure 2 This is a three-dimensional schematic diagram of the door shell trim assembly structure according to an embodiment of the present invention;

[0018] Figure 3 This is a front view of the upper trim strip according to an embodiment of the present invention;

[0019] Figure 4 yes Figure 3 A magnified view of a section at point A in the middle;

[0020] Figure 5 yes Figure 3 A magnified view of a section at point B in the middle;

[0021] Figure 6 This is a perspective view of a door shell according to an embodiment of the present invention;

[0022] Figure 7 yes Figure 6 A magnified view of a section at point C;

[0023] Figure 8 This is a perspective view of the upper decorative strip according to an embodiment of the present invention;

[0024] Figure 9 yes Figure 8 A magnified view of a section at point D;

[0025] Figure 10 yes Figure 8 A magnified view of a section at point E in the middle;

[0026] Figure 11 This is a three-dimensional schematic diagram of a door liner according to an embodiment of the present invention. Detailed Implementation

[0027] The present invention will now be described in detail with reference to the specific embodiments shown in the accompanying drawings. However, these embodiments do not limit the present invention, and any structural, methodological, or functional modifications made by those skilled in the art based on these embodiments are included within the scope of protection of the present invention.

[0028] It should be understood that terms such as "upper," "lower," "outer," and "inner," used herein to indicate spatial relative position, are for illustrative purposes to describe the relationship of one unit or feature relative to another unit or feature as shown in the accompanying drawings. The terms "spatial relative position" may be intended to include different orientations of the equipment in use or operation other than those shown in the figures.

[0029] This invention discloses a door shell trim assembly structure 1000 that can be used in vertical refrigeration equipment, such as... Figure 1 , 2 As shown, the door shell 1 trim assembly includes a door shell 1 and a door liner 3 arranged in parallel, and an upper trim 5 installed between the door shell 1 and the door liner 3. A cavity that can be filled with foam material is formed between the door shell 1, the door liner 3 and the upper trim 5.

[0030] Specifically, the door shell 1 is a sheet metal door shell, and the door liner 3 can be vacuum-formed into the required shape. The door shell 1 and the door liner 3 are placed parallel to each other during installation, and the projections of the central axis of the door shell 1 and the central axis of the door liner 3 overlap, so that the assembly structure of the door shell 1 and the door liner 3 corresponds.

[0031] For ease of description, the side of the door shell 1 and door liner 3 facing the upper trim 5 during installation is defined as the inner side, and the side away from the upper trim 5 is defined as the outer side. In embodiments of the present invention, such as Figure 1 ,2 As shown, the height of the door liner 3 is lower than the height of the door shell 1. The upper trim 5 abuts against the inner sides of the door shell 1 and the inner sides of the door liner 3 on both sides, and the height of the upper trim 5 is similar to the height difference between the door shell 1 and the door liner 3, so that a cavity is formed between the installed door shell 1, the door liner 3 and the upper trim 5. The cavity is used to fill the foam material. Optionally, the foam material is polyurethane foam material, so that an insulation layer is formed between the door shell 1 and the door liner 3, preventing the cold air inside the refrigeration equipment from overflowing.

[0032] like Figure 3 , 4 As shown, the upper trim strip 5 includes multiple baffle ribs 501 protruding towards the door shell 1. The baffle ribs 501 abut against the inner side of the door shell 1, and a groove 502 for accommodating foamed material is formed between adjacent baffle ribs 501. Specifically, for ease of description, it is defined as follows: Figure 2 In the diagram, the horizontal dimension is the length, the vertical dimension is the height, and the dimension perpendicular to the paper surface is the width. The baffle rib 501 of the upper trim 5 can be set as a long strip-shaped protrusion. The length and height of the protrusion can be adjusted according to actual needs. A groove 502 is provided between two adjacent baffle ribs 501. The height of the groove 502 can be the same as the baffle rib 501 or lower than the height of the baffle rib 501. When foam material is filled between the door shell 1 and the upper trim 5, the protruding baffle rib 501 abuts against the inner side of the door shell 1, and the foam material fills into the groove 502, so that the door shell 1 and the upper trim 5 are bonded together by the foam material.

[0033] Furthermore, the baffle 501 includes a first baffle 5011 disposed away from the center of the door shell 1, and at least two second baffle 5012 disposed near the center of the door shell 1. The first baffle 5011 is a continuous protrusion, and the second baffle 5012 is provided with a drainage groove 503 that communicates with all adjacent grooves 502 at fixed intervals. The drainage channel 503 is connected to all adjacent grooves 502. That is, the drainage channel 503 set on the second baffle 5012 near the first baffle 5011 is connected to both the upper and lower grooves 502. Specifically, after the foaming material is filled, the first baffle 5011 prevents the foaming material from overflowing to the outside of the door shell 1, thereby solving the problem of foam overflow between the door shell 1 and the upper trim 5. Moreover, it eliminates the need for manual wrapping of sponge strips, resulting in higher production efficiency. In addition, the drainage channel 503 of the second baffle 5012 guides the foaming material to flow to the adjacent grooves 502, ensuring the uniformity of the foaming material between the door shell 1 and the upper trim 5, thereby ensuring a firm bond between the door shell 1 and the upper trim 5. At the same time, the drainage channel 503 makes it less likely for air to trap during foaming, ensuring the filling of foaming material at the corners, and further ensuring a firm bond between the door shell 1 and the upper trim 5.

[0034] In embodiments of the present invention, such as Figure 6As shown, the door shell 1 includes a front portion 101 arranged longitudinally, and a left end portion 102 and a right end portion 103 that are respectively folded vertically along the left and right end faces of the front portion 101, as shown. Figures 8-10 As shown, the upper trim strip 5 includes a horizontally arranged horizontal portion 504 and a bent portion 505 extending downward along the end face of the horizontal portion 504 toward the door shell 1. The bent portion 505 specifically includes a first bent portion 5051, a second bent portion 5052, and a third bent portion 5053 respectively corresponding to the front portion 101, the left end portion 102, and the right end portion 103. A baffle rib 501 is provided on the bent portion 505.

[0035] Specifically, the first baffle 5011 of the first bending portion 5051 is located at the connection between the horizontal portion 504 and the bending portion 505. Two second baffles 5012 are provided below the first baffle 5011. Grooves 502 are provided between the first baffle 5011 and the second baffle 5012, and between the two second baffles 5012. The first baffle 5011 is a continuous protrusion. The second baffles 5012 are provided with drainage grooves 503 at fixed intervals. The size of the drainage grooves 503 can be selected as needed, such as a groove with a length of 3mm and a depth of 0.5mm. At the same time, the drainage grooves 503 of two adjacent second baffles 5012 are staggered to further ensure the uniformity of the foam material between the door shell 1 and the upper trim 5, so that the door shell 1 and the upper trim 5 are firmly bonded.

[0036] In this embodiment of the invention, the second bend 5052 and the third bend 5053 are symmetrically arranged on the left and right sides of the first bend 5051, and the two ends of the first bend 5051 are respectively connected to the second bend 5052 and the third bend 5053. The second bend 5052 is stepped and specifically includes a first segment 50521 extending downward from the left end face of the horizontal portion and connected to the first bend 5051, a second segment 50522 extending from the lower end face of the first segment 50521 in a horizontal direction away from the first bend 5051, and a third segment 50523 extending downward along the end face of the second segment 50522 away from the first bend 5051.

[0037] Specifically, the retaining rib on the second bend 5052 is an extension of the retaining rib 501 of the first bend 5051 in the second bend 5052. This can be understood as the first retaining rib 5011 and the second retaining rib 5012 of the first bend 5051 being arranged along the first segment 50521, the second segment 50522, and the third segment 50523 of the second bend 5052 in a stepped distribution. In this invention, the retaining rib 501 on the third bend 5053 is arranged exactly the same as that of the second bend 5052, so that the first retaining rib 5011 of the upper trim 5 forms a continuous raised retaining rib 501 that abuts against the front part 101, the left end 102, and the right end 103 of the door shell 1. The second retaining rib 5012 is a raised retaining rib 501 with spaced drainage grooves 503 that abuts against the front part 101, the left end 102, and the right end 103 of the door shell 1.

[0038] In embodiments of the present invention, such as Figure 9 As shown, the retaining rib 501 of the first bend 5051 forms a corner at the connection with the first segment 50521, and the second segment 50522 forms a corner at the connection with the third segment 50523. The second retaining rib 5012 on the second bend 5052 has a clearance groove 506 at the corner of the second bend 5052. The clearance groove 506 can take various forms, such as increasing the size of the drainage groove 503 at the corner, or not providing the second retaining rib 5012 at the corner. The clearance groove 506 in the second bend 5052 allows space for the filling foam material, preventing air trapping during foaming, ensuring sufficient filling of foam material at the corner, and preventing gaps at the corner where the door shell 1 connects to the upper trim 5.

[0039] In one embodiment of the present invention, such as Figure 7 As shown, the upper end of the door shell 1 is also provided with an extension 104 extending horizontally along the end face of the front portion 101, and a flange 105 extending outward and folding downward in the middle of the extension 104. Specifically, the ratio of the width of the flange 105 at the upper end of the door shell 1 to the width of the extension 104 is in the range of 1 / 20 to 1 / 15. Correspondingly, as... Figure 10As shown, the upper trim 5 has an assembly part 507 that abuts against the extension 104, and a snap-fit ​​part 508 that engages with the flange 105. In the embodiment of the invention, the upper end faces of the left end 102 and the right end 103 of the door shell 1 are both provided with an extension end facing the upper trim 5. The assembly part 507 of the upper trim 5 is located directly above the horizontal part 504. At the same time, the upper trim 5 is also provided with two bosses that protrude obliquely on the surface of the horizontal part 504. The bosses are positioned corresponding to the flange 105 of the door shell 1, so that when the inner side of the assembly part 507 abuts against the extension 104 and the extension end of the door shell 1, the flange 105 is just locked onto the bosses of the snap-fit ​​part 508. The structural design of the flanged portion 105 of the upper trim strip 5 in this invention avoids the defect of overflow that is common in traditional trim strips with through holes; in addition, when the flanged portion 105 is subjected to external force, the structural design of the flanged portion 105 will not transmit the force to the front of the door shell 1, but will only deform at the flanged portion, thereby avoiding appearance defects on the front of the door shell 1.

[0040] In one embodiment of the present invention, the upper trim strip 5 further includes a vertical portion 509 that abuts against the door liner 3, such as... Figure 11 As shown, the door liner 3 includes a connecting portion 301 that mates with the upper trim strip 5, and a door liner boss 302 located below the connecting portion 301 and facing the upper trim strip 5, as shown. Figure 5 As shown, a flexible hinge 510 is also provided at the abutment of the upper trim 5 and the door liner boss 302. Specifically, the flexible hinge 510 is injection molded at the abutment position of the vertical part 509 and the door liner boss 302. The door liner boss 302 can be set as a U-shaped structure, so that the two flexible hinges 510 are symmetrically arranged on the vertical part 509. When the door liner 3 and the upper trim 5 are installed, the door liner boss 302 will push the flexible hinge 510 to flip inward, so that the flexible hinge 510 and the door liner boss 302 are tightly engaged to prevent material overflow at the corner of the door liner.

[0041] It should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0042] The detailed descriptions listed above are merely specific descriptions of feasible embodiments of the present invention, and are not intended to limit the scope of protection of the present invention. All equivalent embodiments or modifications made without departing from the spirit of the present invention should be included within the scope of protection of the present invention.

Claims

1. A door shell trim assembly structure, comprising a door shell and a door liner arranged in parallel, and an upper trim strip installed between the door shell and the door liner, wherein a cavity for filling with foam material is formed between the door shell, the door liner, and the upper trim strip, characterized in that, The upper trim strip includes multiple baffles protruding towards the door shell, the baffles abutting against the inner side of the door shell, and a groove for accommodating foamed material is formed between adjacent baffles; The baffle ribs include a first baffle rib disposed away from the center of the door shell, and at least two second baffle ribs disposed close to the door shell. The first baffle ribs are continuous protrusions, and the second baffle ribs are provided with drainage grooves that communicate with all adjacent grooves at fixed intervals. The upper trim strip includes a horizontally disposed horizontal portion and a bent portion extending downward along the end face of the horizontal portion toward the door shell. The baffle ribs are disposed on the bent portion.

2. The door shell trim assembly structure according to claim 1, characterized in that, The flow channels of two adjacent second baffle ribs are staggered.

3. The door shell trim assembly structure according to claim 1, characterized in that, The door shell includes a front part arranged in a vertical direction, and a left end and a right end that are folded vertically along the left and right end faces of the front part, respectively. The bending part includes a first bending part, a second bending part and a third bending part respectively provided corresponding to the front part, the left end and the right end.

4. The door shell trim assembly structure according to claim 3, characterized in that, The upper trim strip also includes a clearance groove provided at the corner of the second bend and / or the third bend.

5. The door shell trim assembly structure according to claim 3, characterized in that, The upper end of the door shell is also provided with an extension extending horizontally along the front end face, and a flange extending outward and folding downward in the middle of the extension. The ratio of the width of the flange to the width of the extension is in the range of 1 / 20 to 1 / 15.

6. The door shell trim assembly structure according to claim 5, characterized in that, The upper trim strip has a mounting portion that abuts against the extension portion and a snap-fit ​​portion that cooperates with the flange portion.

7. The door shell trim assembly structure according to claim 6, characterized in that, The latching part consists of two protrusions that are obliquely raised on the surface of the horizontal part.

8. The door shell trim assembly structure according to claim 2, characterized in that, The drainage channel is a channel with a length of 3mm and a depth of 0.5mm.

9. The door shell trim assembly structure according to claim 1, characterized in that, The door liner includes a door liner boss disposed toward the upper trim strip, and the upper trim strip is further provided with a flexible hinge that abuts against the door liner boss.

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