A refrigerator door and its manufacturing method

Abstract

This invention proposes a refrigerator door, comprising: a door body, the door body including a front door panel and a rear door panel, the front door panel and the rear door panel being fixed together to form an insulation cavity, the insulation cavity being filled with insulation filler. The invention also proposes a method for manufacturing a refrigerator door, comprising the following steps: S1, assembling the front door panel and the rear door panel together to form the door body; S2, placing the door body into a clamp and using the clamp to press and fix its front and back surfaces; S3, injecting insulation material into the insulation cavity, and removing the door from the clamp after the insulation material has cured. This invention has good insulation performance, a smooth surface, and a low scrap rate.

Description

Technical Field

[0001] This invention relates to the field of refrigerator structure technology, specifically to a refrigerator door and its manufacturing method. Background Technology

[0002] With the development of the times, people's living standards have greatly improved. In the past, food lacked proper storage facilities, making it prone to spoilage. Now, freezers provide a much better environment for food preservation. The freezer door is a crucial component, and its insulation performance directly affects the overall insulation performance of the freezer. However, current freezer door structures primarily use an insulation layer directly on the inside of the door. Because this insulation structure is in direct contact with the humid and cold air inside the freezer, its insulation performance will decrease over time. Summary of the Invention

[0003] In order to solve the technical problems existing in the background art, the present invention proposes a refrigerator door and its manufacturing method.

[0004] The present invention proposes a refrigerator door, comprising: a door body, the door body including a front door panel and a rear door panel, the front door panel and the rear door panel being fixed together to form an insulation cavity between them, and the insulation cavity being filled with insulation filler.

[0005] Preferably, the cabinet door body is provided with a window that runs through its front door panel and rear door panel, and an observation window is installed in the window. The observation window includes a glass plate and a frame that covers the edge of the glass plate.

[0006] Preferably, the glass plate has a cavity inside, which is filled with gas.

[0007] Preferably, the observation window is provided with a front baffle and a rear baffle on the inner and outer sides respectively. Both the front baffle and the rear baffle are provided with buckles, openings corresponding to the window, and flanges set at the edges of the openings. The front baffle is close to the front door panel, and the rear baffle is close to the rear door panel. The flanges of both the front baffle and the rear baffle extend to the inner side of the window. The frame has a front limiting platform and a rear limiting platform on both sides of the glass plate.

[0008] The observation window is located inside the window, and the edge of the observation window is inside the insulation cavity. The front limiting platform and the rear limiting platform on the observation window are both located outside the opening. The front limiting platform is abutted against the flange on the front baffle, and the rear limiting platform is abutted against the flange on the rear baffle. The buckles on the front baffle and the rear baffle are respectively engaged with the frame.

[0009] Preferably, the front baffle has multiple buckles arranged circumferentially, and one of the buckles has a mark.

[0010] Preferably, the rear panel has multiple buckles arranged circumferentially, and one of the buckles has a mark.

[0011] Preferably, both sides of the frame are provided with extensions extending outward from their inner edges to form a front limiting platform and a rear limiting platform on both sides of the glass plate, respectively.

[0012] The present invention discloses a method for manufacturing a freezer door, comprising the following steps:

[0013] S1. The front door panel and the rear door panel are assembled together to form the cabinet door body;

[0014] S2. Place the cabinet door body into the clamp and use the clamp to press and fix its front and back sides;

[0015] S3. Inject insulation material into the insulation cavity, and remove the cabinet door from the clamp after the insulation material has cured.

[0016] Preferably, when an observation window is installed on the cabinet door body, the connection between the observation window and the window is sealed before proceeding to step S2.

[0017] Preferably, when an observation window is installed on the cabinet door body, sealing tape is used to seal the joint between the observation window and the window opening.

[0018] This invention proposes a refrigerator door that utilizes insulation cavities in the front and rear door panels, with insulation filler placed within these cavities to ensure overall insulation performance. This combined front and rear door panel structure facilitates manufacturing. Furthermore, this invention provides a method for manufacturing the refrigerator door by placing the door body in a clamp before injecting the insulation material. The clamp then presses and secures the door's front and back surfaces, ensuring the insulation material evenly fills the insulation cavity without causing door deformation and reducing the scrap rate. Attached Figure Description

[0019] Figure 1 This is a front view of a freezer door proposed in this invention.

[0020] Figure 2 This is a rear view of a refrigerator door proposed in this invention.

[0021] Figure 3 This is a cross-sectional view of a refrigerator door proposed in this invention.

[0022] Figure 4 for Figure 3 A magnified view of a portion of the image.

[0023] Figure 5 This is an exploded view of a refrigerator door proposed in this invention. Detailed Implementation

[0024] 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.

[0025] Reference Figure 1-5 The present invention proposes a refrigerator door, comprising: a door body, the door body including a front door panel 1 and a rear door panel 2, wherein the front door panel 1 and the rear door panel 2 are fixed together and form an insulation cavity 3 between them, and the insulation cavity 3 is filled with insulation filler to ensure the overall insulation performance of the refrigerator door.

[0026] The cabinet door body has a window that connects its front door panel 1 and rear door panel 2. It also includes an observation window 4, a front baffle 5 and a rear baffle 6. Both the front baffle 5 and the rear baffle 6 are provided with a buckle a, a passage corresponding to the window and a flange b set at the edge of the passage. The front baffle 5 is close to the front door panel 1 and the rear baffle 6 is close to the rear door panel 2, and the flange b of both the front door panel 1 and the rear door panel 2 extends to the inside of the window.

[0027] The observation window 4 includes a glass plate 41 and a frame 42 that covers the edge of the glass plate 41. The glass plate 41 has an internal cavity 7. Specifically, the glass plate 41 comprises multiple flat glass panes, spaced apart to form a cavity 7 between any two adjacent panes. The cavity 7 is filled with gas to ensure the thermal insulation performance of the observation window 4 and to prevent frost or condensation on the glass plate 41 due to temperature differences between the inside and outside.

[0028] The frame 42 has a front limiting platform 421 and a rear limiting platform 422 on both sides of the glass plate 41. Specifically, each side of the frame 42 has an extension extending outward from its inner edge to form a front limiting platform 421 and a rear limiting platform 422 on both sides of the glass plate 41. The observation window 4 is located inside the window, and its edge is inside the insulation cavity 3. The front limiting platform 421 and the rear limiting platform 422 on the observation window 4 are both located outside the opening. The front limiting platform 421 abuts against the flange b on the front baffle 5, and the rear limiting platform 422 abuts against the flange b on the rear baffle 6. The flange b on the front baffle 5 and the rear baffle 6 form a support on the inner side of the frame 42, preventing the observation window 4 from moving radially. The buckles a on the front baffle 5 and the rear baffle 6 are respectively engaged with the frame 42 to fix the observation window 4 and the cabinet door body together to form a whole. The items displayed in the cabinet can be directly viewed through the observation window 4. The gas inside the cavity 7 ensures heat preservation at the observation window 4 while preventing frost or condensation from forming on the glass plate 41, thus solving the problem of frost or condensation affecting the observation effect.

[0029] In this embodiment, the front baffle 5 has multiple clips a arranged circumferentially, and one of the clips a has a mark. This is to facilitate quick identification of the installation position by the installer during installation, avoiding misalignment. Similarly, the rear baffle 6 has multiple clips a arranged circumferentially, and one of the clips a has a mark.

[0030] In this embodiment, the inner wall of the cavity 7 is provided with a heat insulation film with light transmission properties, so as to further enhance the heat insulation and heat preservation effect without affecting the light transmission.

[0031] In this embodiment, a recessed area for inserting the rear baffle 6 is provided on the wall surface of the rear door panel 2 on the side away from the front door panel 1 and located outside the window. A through hole c communicating with the insulation cavity 3 is provided within the recessed area. The rear baffle 6 is located within the recessed area, and the buckle a on the rear baffle 6 passes through the through hole c and engages with the frame 42. The recessed area allows the rear baffle 6 to be flush with the inner rear wall surface of the cabinet door body. The design of the buckle a on the rear baffle 6 engaging with the frame 42 through the through hole c effectively combines the observation window 4 and the rear baffle 6 with the cabinet door body, thereby enhancing the overall structural stability.

[0032] Specifically: the front baffle 5 is a circular plate, with a through opening in the center to form a passage. Since the front baffle 5 is mainly located on the outside of the cabinet door body, this structural design makes the cabinet door look simpler and more aesthetically pleasing.

[0033] Specifically: the window is a circular opening, and the passage is a circular opening that matches the window. The circular opening design provides better stability.

[0034] Example 1: A method for manufacturing a freezer door according to the present invention includes the following steps:

[0035] S1, front door panel 1 and rear door panel 2 are assembled together to form the cabinet door body;

[0036] S2. Place the cabinet door body into the clamp and use the clamp to press and fix its front and back sides to ensure that the insulation material fills the entire insulation cavity 3 without causing the cabinet door to deform.

[0037] S3. Inject insulation material into the insulation cavity 3, and remove the cabinet door from the clamp after the insulation material has cured.

[0038] Example 2 differs from Example 1 in that the cabinet door body has a window, an observation window 4, a front baffle 5, and a rear baffle 6 are installed at the window, specifically including the following steps:

[0039] S1. Assemble the observation window 4, the front baffle 5, and the rear baffle 6 together with the cabinet door body.

[0040] S2. Seal the connection between the observation window 4 and the window; specifically: use sealing tape to seal the connection between the observation window 4 and the window so that it can be removed after the insulation material has cured.

[0041] S3. Place the cabinet door body into the clamp and use the clamp to press and fix its front and back sides to avoid deformation when injecting insulation material.

[0042] S4. Inject insulation material into the insulation cavity 3, and remove the cabinet door from the clamp after the insulation material has cured.

[0043] As can be seen from the above, the present invention provides insulation cavities 3 in the front door panel 1 and the rear door panel 2, and fills the insulation cavities 3 with insulation filler to ensure the overall insulation performance of the cabinet door. This structure, combining the front door panel 1 and the rear door panel 2, is easy to manufacture. An observation window 4 is provided on the cabinet door, allowing the items displayed inside to be directly viewed. Simultaneously, a cavity 7 is provided inside the glass panel 41, filled with gas. This gas is sealed within the cavity 7 for a long period, preventing convection with the outside air. Since gas is a poor conductor of heat, it effectively blocks heat conduction between the inner and outer sides of the glass. Therefore, this structural design provides better heat insulation and preservation. Furthermore, the cavity 7 effectively prevents frost and condensation from forming on the glass panel 41.

[0044] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0045] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and 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.

Claims

1. A cabinet door for a refrigerator, characterized in that include: The cabinet door body includes a front door panel (1) and a rear door panel (2). The front door panel (1) and the rear door panel (2) are fixed together and form a heat insulation cavity (3) between them. The heat insulation cavity (3) is filled with heat insulation filler. The cabinet door body is provided with a window that runs through its front door panel (1) and rear door panel (2). An observation window (4) is installed inside the window. The observation window (4) includes a glass plate (41) and a frame (42) that covers the edge of the glass plate (41). The observation window (4) has a front baffle (5) and a rear baffle (6) on its inner and outer sides respectively. The front baffle (5) and the rear baffle (6) are provided with buckles (a), openings corresponding to the window, and flanges (b) set at the edges of the openings. The front baffle (5) is close to the front door panel (1), and the rear baffle (6) is close to the rear door panel (2). The flanges (b) of the front baffle (5) and the rear baffle (6) extend to the inner side of the window. The frame (42) is located on both sides of the glass plate (41) and has a front limiting platform (421) and a rear limiting platform (422) respectively; the observation window (4) is located inside the window, and the edge of the observation window (4) is inside the heat preservation cavity (3). The front limiting platform (421) and the rear limiting platform (422) on the observation window (4) are both located outside the opening. The front limiting platform (421) is close to the flange (b) on the front baffle (5), and the rear limiting platform (422) is close to the flange (b) on the rear baffle (6). The buckles (a) on the front baffle (5) and the rear baffle (6) are respectively engaged with the frame (42). Both sides of the frame (42) are provided with extensions extending outward from their inner edges to form a front limiting platform (421) and a rear limiting platform (422) on both sides of the glass plate (41); the rear door panel (2) is provided with a recessed area on the wall away from the front door panel (1) and on the outside of the window for the rear baffle (6) to be inserted. The recessed area is provided with a through hole that communicates with the heat preservation cavity (3). The rear baffle (6) is located in the recessed area, and the buckle on the rear baffle (6) passes through the through hole and engages with the frame (42); The glass plate (41) has a cavity (7) inside, which is filled with gas; the front baffle (5) has multiple buckles (a) arranged in a circumferential direction, and one of the buckles (a) has a mark.

2. The cabinet door of claim 1, wherein The rear panel (6) has multiple buckles (a) arranged circumferentially, and one of the buckles (a) is marked.

3. A method of manufacturing a cabinet door for a refrigerator, characterized by, The method for using a freezer door according to any one of claims 1-2 includes the following steps: S1. Assemble the front door panel (1) and the rear door panel (2) together to form the cabinet door body; S2. Place the cabinet door body into the clamp and use the clamp to press and fix its front and back sides; S3. Inject insulation material into the insulation cavity (3), and remove the cabinet door from the clamp after the insulation material has cured.

4. The refrigerator door manufacturing method of claim 3, wherein, When an observation window (4) is installed on the cabinet door body, the connection between the observation window (4) and the window is sealed before proceeding to step S2.

5. The refrigerator door manufacturing method according to claim 4, characterized in that, When an observation window (4) is installed on the cabinet door body, sealing tape is used to seal the connection between the observation window (4) and the window.

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