A freezer door trim structure

Abstract

The application discloses a freezer door trim structure and relates to the technical field of refrigeration equipment. The door trim structure comprises a trim main body and an exhaust structure. The exhaust structure is arranged on the trim main body and used for lapping a door tank contact surface of the door tank. The exhaust structure is a ladder-shaped structure, and the height of the ladder-shaped structure is 0.5 mm. The contact surface width of the ladder-shaped structure and the trim main body is 0.5-0.8 mm, and a width of 0.5 mm exhaust groove is arranged on the other surface of the ladder-shaped structure at intervals. The exhaust structure is arranged in the form of a ladder on the main body, so that the exhaust structure is first in contact with the door tank surface when the door tank is assembled, the door body is put into a foaming mold after assembly, the exhaust structure is in interference fit with the door tank surface, and the exhaust structure is closely attached, so that no gap exists, thereby improving the problem of liquid leakage on the front surface. The gas in the door body can flow out through the exhaust groove arranged in the exhaust structure, and the foaming liquid is difficult to pass through the 0.5MM channel due to high viscosity, thereby solving the problem that the gas cannot be discharged, and improving the foaming quality of the door body.

Description

Technical Field

[0001] This invention relates to the field of refrigeration equipment technology, specifically to a freezer door trim structure. Background Technology

[0002] A freezer is a refrigeration device that maintains a constant low temperature. It is a common household appliance used for preserving food or other items at low temperatures and is widely used in both domestic and industrial applications. The decorative strips on both sides of the freezer door are mostly made of ABS plastic and are injection molded. Although the structure of the door strips varies depending on the product design requirements, they all overlap and fit with the door liner. After assembly, the strips are placed in a door mold for injection molding and foaming. The fit between the two directly affects issues such as leakage from the door and gas buildup in the door liner.

[0003] Currently, common door trim strips on the market have the following problems: During the foaming process, the trim strip and the door liner are squeezed by the mold, resulting in unevenness or excessive tightness at the contact surface. When some parts of the contact surface are uneven, the foaming liquid will overflow. When the door liner and the trim strip are too tightly attached, the gas inside the door cannot be discharged smoothly, the foaming liquid will not be fully filled, and air will accumulate at the edge of the door liner. The overflowing foaming liquid or the accumulated air in the door liner requires manual rework, which affects product quality and production efficiency. Summary of the Invention

[0004] The technical problem solved by this invention is to improve the leakage and air accumulation problems of the existing door liner and trim mating surface after foaming.

[0005] The objective of this invention can be achieved through the following technical solutions:

[0006] A refrigerator door trim structure includes a trim body and an exhaust structure. The exhaust structure is disposed on the door liner contact surface of the trim body. The exhaust structure is trapezoidal with a height of 0.5mm. The contact surface width between the trapezoidal structure and the trim body is 0.5mm-0.8mm, and exhaust grooves with a width of 0.5mm are spaced apart on the other side of the trapezoidal structure.

[0007] The freezer door trim structure according to the present invention has at least one of the following technical effects: by setting a trapezoidal exhaust structure on the main body, the exhaust structure first contacts the door liner surface when the door liner is assembled. After assembly, the door body is placed into the foaming mold, and the exhaust structure and the door liner surface are interference fit, tightly attached, and there are no gaps, thereby improving the problem of leakage on the front. Meanwhile, the gas inside the door can flow out through the exhaust groove set in the exhaust structure. Because the foaming liquid has high viscosity, it is difficult to pass through the 0.5MM channel, thereby solving the problem of gas not being able to escape, improving the foaming quality of the door body, improving leakage, reducing on-site rework, and improving the first-pass yield of the product.

[0008] In one embodiment of the invention, the exhaust structure comprises multiple segments located on the same straight line. Exhaust channels are located at the center of each segment.

[0009] In one embodiment of the invention, multiple parallel reinforcing ribs are also included. These reinforcing ribs are located on the back of the door liner contact surface.

[0010] In one aspect of the present invention: the direction of the reinforcing ribs is perpendicular to the direction of the exhaust structure, and the length of the reinforcing ribs is equal to the overlap width between the main body of the decorative strip and the door frame.

[0011] In one embodiment of the present invention, the reinforcing rib is a convex reinforcing rib. The convex reinforcing rib has a height of 1 mm and a width of 1 mm.

[0012] In one embodiment of the present invention, the reinforcing rib, the venting structure, and the main body of the decorative strip are integrally formed.

[0013] In one embodiment of the invention, a support structure is also included. The support structure comprises two support columns positioned close to one side of the trim strip body. The two support columns are symmetrically arranged on both sides of the door sill contact surface, and each is 20-30mm from the end of the trim strip body. The height of the support columns is 3-5mm.

[0014] In one embodiment of the present invention: the support column is conical, with a bottom side length of 5mm, a top side length of 3mm, and a circular groove with a diameter of 1mm in the middle.

[0015] In one embodiment of the invention, a buffer component is provided within a circular groove. The buffer component includes a load-bearing portion and a connecting portion. The load-bearing portion and the connecting portion form a "T" shape.

[0016] The load-bearing part is a cylinder with a diameter of 3mm and a height of 3mm. The connecting part is a cylinder with a diameter of 1.1mm and a length of 2-4mm, with its end away from the load-bearing part fitting into a circular groove. Both the load-bearing part and the connecting part are made of rubber.

[0017] In one embodiment of the present invention, the support structure, the exhaust structure, and the main body of the decorative strip are integrally formed.

[0018] The beneficial effects of this invention are:

[0019] (1) By setting a trapezoidal exhaust structure on the main body, the exhaust structure first contacts the door shell surface when the door shell is assembled. After assembly, the door body is placed into the foaming mold. The exhaust structure and the door shell surface are interference fit and tightly attached without gaps, thereby improving the leakage problem on the front. The gas inside the door can flow out through the exhaust groove set in the exhaust structure. The foaming liquid has high viscosity and it is difficult to pass through the 0.5MM channel, thereby solving the problem of gas not being able to be discharged, improving the foaming quality of the door body, improving leakage, reducing on-site rework, and improving the first-pass yield of the product.

[0020] (2) By setting a support structure and buffer component on the main body of the decorative strip, the overall height of the support structure and buffer component is consistent with the cross-sectional height of the door seal. After the freezer is closed, the support structure and buffer component support the weight of the door, thereby eliminating the use of the door protection strip, reducing the protection strip fixing process, improving product production efficiency, and ensuring the consistency of process protection.

[0021] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0022] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0023] Figure 1 This is a structural schematic diagram of the freezer door trim structure of the present invention;

[0024] Figure 2 yes Figure 1 Enlarged view of the structure at point A in the middle;

[0025] Figure 3 yes Figure 1 Enlarged view of the structure at point B.

[0026] In the diagram: 1. Main body of the trim strip; 2. Exhaust structure; 201. Exhaust channel; 3. Reinforcing rib; 4. Support column; 5. Buffer component. Detailed Implementation

[0027] 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 embodiments of the present invention, and not all embodiments. 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.

[0028] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are 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.

[0029] In the description of this invention, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0030] Please see Figure 1-3 This invention relates to a refrigerator door trim structure, comprising a trim body 1 and an exhaust structure 2. The exhaust structure 2 is disposed on the door liner contact surface of the trim body 1 for overlapping the door liner. The exhaust structure 2 is trapezoidal in shape with a height of 0.5 mm. The contact surface width between the trapezoidal structure and the trim body 1 is 0.5 mm-0.8 mm, and exhaust grooves 201 with a width of 0.5 mm are spaced apart on the other side of the trapezoidal structure.

[0031] Specifically, the exact shape of the trapezoidal structure is not limited, as long as the trapezoidal structure contacts the door frame surface first during assembly, and the door body is placed into the foam mold after assembly, the trapezoidal structure and the door frame surface are interference-fitted, fitting tightly without gaps; for example, combining Figure 3 In one specific embodiment of the present invention, the trapezoidal structure is an isosceles trapezoidal structure.

[0032] It should be noted that, please refer to... Figure 1 The main body of the trim strip 1 is a single component with a concealed handle in the middle and mounting grooves around the perimeter, and has support and limiting structures of different angles and sizes.

[0033] This invention features a trapezoidal venting structure 2 on the main body. During door assembly, the venting structure 2 first contacts the door surface. After assembly, the door is placed in the foaming mold, and the venting structure 2 and the door surface are tightly fitted without gaps, thus improving the problem of leakage from the front. Meanwhile, gas inside the door can flow out through the venting groove 201 in the venting structure 2. Because the foaming liquid has high viscosity, it is difficult to pass through the 0.5mm channel, thus solving the problem of gas not being able to escape. This improves the foaming quality of the door, reduces leakage, reduces on-site rework, and increases the first-pass yield.

[0034] In some embodiments of the present invention, the exhaust structure 2 includes multiple segments located on the same straight line. The exhaust grooves 201 are located at the center of each segment, and are generally divided into 2 to 4 segments.

[0035] Please combine Figure 1-3The freezer door trim structure also includes multiple parallel reinforcing ribs 3. The reinforcing ribs 3 are located on the back of the door liner contact surface. The reinforcing ribs 3 improve the overall structural strength. In a further embodiment, the direction of the reinforcing ribs 3 is perpendicular to the direction of the exhaust structure 2, and the length of the reinforcing ribs 3 is equal to the overlap width between the trim body 1 and the door liner.

[0036] It should be noted that the specific type of reinforcing rib 3 is not limited. In some embodiments, the reinforcing rib 3 is a convex reinforcing rib. The convex reinforcing rib has a height of 1mm and a width of 1mm.

[0037] Considering that after the foamed door body is assembled with the door seal and then onto the cabinet, a supporting component is needed between the door trim and the cabinet before sealing to prevent the door body from being compressed and deformed during storage and transportation. Therefore, the freezer door trim structure of this invention also includes a support structure. Please refer to... Figure 1-3 The support structure includes two support columns 4 located close to one side of the limiting edge of the main body 1 of the decorative strip. The two support columns 4 are symmetrically arranged on both sides of the door liner contact surface, and each is 20-30mm away from the end of the main body 1 of the decorative strip. The height of the support columns 4 is 3-5mm.

[0038] It should be noted that the specific type of the support column 4 is not limited. In some embodiments, the support column 4 is conical with a bottom side length of 5mm, a top side length of 3mm, and a circular groove with a diameter of 1mm in the middle.

[0039] Furthermore, a buffer component 5 is provided within the circular groove. The buffer component 5 includes a load-bearing part and a connecting part. The load-bearing part and the connecting part are T-shaped.

[0040] The load-bearing part is a cylinder with a diameter of 3mm and a height of 3mm. The connecting part is a cylinder with a diameter of 1.1mm and a length of 2-4mm, with its end away from the load-bearing part fitting into a circular groove. Both the load-bearing part and the connecting part are made of rubber.

[0041] This invention provides a support structure and a buffer component 5 on the main body 1 of the decorative strip. The overall height of the support structure and the buffer component 5 is consistent with the cross-sectional height of the door seal. After the freezer door is closed, the support structure and the buffer component 5 support the weight of the door, thereby eliminating the need for a door protective strip, reducing the protective strip fixing process, improving product production efficiency, and ensuring the consistency of process protection.

[0042] It should be added that the main body of the trim strip (1), the exhaust structure (2), the reinforcing rib (3), and the support structure are all integrally molded and made of ABS material. This structure remains in place throughout use and cannot be disassembled. The support height remains constant, and the distance between the door and the cabinet remains unchanged, ensuring consistent door gaps and preventing uneven gaps, thus improving the user experience.

[0043] The foregoing has provided a detailed description of one embodiment of the present invention, but this description is merely a preferred embodiment and should not be construed as limiting the scope of the invention. All equivalent variations and modifications made within the scope of the claims of this invention should still fall within the scope of the claims.

Claims

1. A freezer door trim structure comprising a trim body (1), characterized in that, Also includes: The exhaust structure (2) is provided on the door contact surface of the main body (1) for overlapping the door shell; the exhaust structure (2) is a trapezoidal structure with a height of 0.5mm and a cross-section of the exhaust structure (2); the width of the contact surface between the trapezoidal structure and the main body (1) is 0.5mm-0.8mm, and an exhaust groove (201) with a width of 0.5mm is provided at intervals on the other side of the trapezoidal structure opposite to the contact surface. When the door shell is assembled, the trapezoidal structure first contacts the door shell surface, and after assembly, the door body is placed into the foam mold, and the trapezoidal structure is interference-fitted with the door shell surface.

2. The freezer door trim structure of claim 1, wherein The exhaust structure (2) includes multiple segments located on the same straight line; the exhaust groove (201) is located at the center of each segment.

3. The freezer door trim structure of claim 1, wherein It also includes multiple parallel reinforcing ribs (3); the reinforcing ribs (3) are set on the back of the door shell contact surface.

4. The freezer door trim structure of claim 3, wherein, The direction of the reinforcing rib (3) is perpendicular to the direction of the exhaust structure (2), and the length of the reinforcing rib (3) is equal to the overlap width between the main body of the decorative strip (1) and the door shell.

5. The freezer door trim structure according to claim 3, characterized in that, The reinforcing rib (3) is a convex reinforcing rib; the height of the convex reinforcing rib is 1mm and the width is 1mm.

6. The freezer door trim structure according to claim 3, characterized in that, The reinforcing rib (3), the exhaust structure (2), and the main body of the decorative strip (1) are integrally formed.

7. The freezer door trim structure according to claim 1, characterized in that, It also includes a support structure; the support structure includes two support columns (4) close to one side of the limiting edge of the main body of the trim strip (1); the two support columns (4) are symmetrically arranged on both sides of the door contact surface, and are 20-30mm away from the end of the main body of the trim strip (1); the height of the support column (4) is 3-5mm.

8. The freezer door trim structure according to claim 7, characterized in that, The support column (4) is conical, with a bottom side length of 5mm and a top side length of 3mm, and a circular groove with a diameter of 1mm is provided in the middle.

9. The freezer door trim structure according to claim 8, characterized in that, A buffer component (5) is provided inside the circular groove; the buffer component (5) includes a load-bearing part and a connecting part; the load-bearing part and the connecting part are in a "T" shape; The load-bearing part is a cylinder with a diameter of 3mm and a height of 3mm; the connecting part is a cylinder with a diameter of 1.1mm and a length of 2-4mm, and the end away from the load-bearing part matches a circular groove; both the load-bearing part and the connecting part are made of rubber.

10. The freezer door trim structure according to claim 8, characterized in that, The supporting structure, the exhaust structure (2), and the main body of the trim strip (1) are integrally formed.

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