A vacuum insulated door body

Abstract

The utility model discloses a kind of vacuum heat insulation door bodies, including outer frame, door seal groove, door seal, bottom shell and thermal insulation material layer, bottom shell covers on barrier membrane, thermal insulation material layer is located in the vacuum cavity formed by bottom shell and barrier membrane, barrier membrane is fixed on outer frame, door seal is inserted in door seal groove, door seal groove is supported on bottom shell and located in outer frame;Bottom shell includes upper support and lower support, upper support has a factory-shaped portion and mesa portion, lower support has U-shaped portion and the horizontal portion formed by the end surface of U-shaped portion extending outward, by factory-shaped portion covers on horizontal portion, upper support and lower support are connected to form boss, upper support is connected with barrier membrane.The utility model makes boss on bottom shell, which can place bottle frame, the installation of refrigerator door body no longer needs inner container, simplifies structure and assembly step.

Description

Technical Field

[0001] This invention relates to the field of heat-insulating door technology, and particularly to a vacuum insulated door body. Background Technology

[0002] Traditional refrigerator door manufacturing typically involves a door seal, inner liner, sheet metal frame, and plastic end caps to enclose the insulation material. The raised sections formed during the vacuum forming process of the inner liner are for mounting bottle holders for beverages, eggs, etc. Existing refrigerator door construction involves first placing the insulation board and electrical components into the outer frame, injecting foam material, covering it with the inner liner for initial assembly, and then placing the inner liner and outer frame into a mold for further foaming. This assembly process is cumbersome, and the foaming molds are costly to manufacture. Therefore, the inventors have conducted further research and developed a vacuum insulation body that eliminates the need for an inner liner and reduces or eliminates the need for foam material, thus achieving an environmentally friendly effect. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a vacuum insulation body that adopts an inner liner-less structure, which simplifies the structure and assembly steps.

[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is:

[0005] A vacuum insulated body includes an outer frame, a door sealing groove, a door seal, a barrier membrane, a bottom shell, and an insulation material layer. The bottom shell covers the barrier membrane, and the insulation material layer is located within the vacuum cavity formed by the bottom shell and the barrier membrane. The barrier membrane is fixed to the outer frame, and the door seal is inserted into the door sealing groove, which abuts against the bottom shell and is located within the outer frame. The bottom shell includes an upper support member and a lower support member. The upper support member has a U-shaped portion and a platform surface, and the lower support member has a U-shaped portion and a horizontal portion extending outward along the end face of the U-shaped portion. The U-shaped portion covers the horizontal portion, and the upper and lower support members are connected to form a boss. The upper support member is connected to the barrier membrane.

[0006] Furthermore, the outer frame has sidewalls, and a bend extends inward along the end face of the sidewalls to form a bend that rests against the sidewalls.

[0007] Furthermore, the length of the bend is 30%-50% of the sidewall height.

[0008] Furthermore, the countertop has two surfaces, namely a first surface and a second surface, with the door seal groove abutting against the first surface and the door seal abutting against the second surface.

[0009] Further, the outer wall of the door gasket groove is provided with a positioning protruding point, the positioning protruding point is located between the door gasket groove and the outer frame, the outer frame has a side wall, a bent portion is formed extending inward along the end face of the side wall, the bent portion abuts against the side wall, and the positioning protruding point abuts against the bent portion; alternatively, the outer wall of the door gasket groove is provided with a positioning protruding point, and the positioning protruding point is located between the door gasket groove and the bottom shell; alternatively, the outer wall of the door gasket groove is provided with a positioning protruding point, the positioning protruding point is located between the door gasket groove and the outer frame, and the positioning protruding point is located between the door gasket groove and the bottom shell.

[0010] Further, the depth of the boss ranges from 15mm to 100mm, or the depth-to-width ratio of the boss is greater than 1.

[0011] Further, the door gasket groove is provided with a fixing groove and a hollow frame, a door gasket is inserted into the fixing groove, and the hollow frame is close to the outer frame.

[0012] Further, an adhesive is also included, and the adhesive is filled in gaps between the outer frame and the door gasket groove, between the door gasket groove and the bottom shell, and between the outer frame and the bottom shell.

[0013] Further, the outer frame comprises a bottom surface and four side walls, the four side walls are perpendicular to the bottom surface and form an accommodation space; alternatively, the outer frame comprises a U-shaped sheet metal part and two plastic handles, the U-shaped sheet metal part consists of a bottom surface and two side walls, the two side walls are perpendicular to the bottom surface, the plastic handles are fixed between the two side walls, and the bottom surface, the two side walls and the two plastic handles form an accommodation space.

[0014] Further, the length of the factory-shaped portion covering the horizontal portion is greater than 12mm, or the length of the bent portion ranges from 12mm to 35mm.

[0015] After adopting the above solution, since the present utility model forms a boss on the bottom shell for placing a bottle frame, it only needs to directly wrap the bottom shell with the outer frame and the door gasket groove, an inner liner is no longer required for assembling a refrigerator door body, which simplifies the structure and assembling steps. Description of Drawings

[0016] Figure 1 is a schematic diagram of a partial structure of the present utility model;

[0017] Figure 2 is Figure 1 an enlarged view of part A of;

[0018] Figure 3 is a top view of the present utility model;

[0019] Figure 4 is a structural schematic diagram of the present utility model.

[0020] Description of Reference Numerals

[0021] outer frame 1, side wall 11, bent portion 12, bottom surface 13

[0022] Door seal groove 2, positioning protrusion 21

[0023] 22 Fixed groove, 23 Hollow frame, 3 Door seal, 4 Bottom shell, 41 Upper support component

[0024] 411 F-shaped section, 412 table surface, 42 lower support member, 421 U-shaped section, 422 horizontal section

[0025] Barrier membrane 43 Thermal insulation layer 5 Adhesive 6 Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. It should be noted that the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0027] This utility model discloses a vacuum insulation body, such as Figure 1 and Figure 2 As shown, this is a preferred embodiment of the present invention, which includes an outer frame 1, a door sealing groove 2, a door seal 3, a bottom shell 4, and a thermal insulation material layer 5. The thermal insulation material layer 5 is located in the bottom shell 4 to form a vacuum cavity. The bottom shell 4 is fixed to the outer frame 1, and the door seal 3 is inserted into the door sealing groove 2.

[0028] The bottom shell 4 includes an upper support member 41 and a lower support member 42. The upper support member 41 has a U-shaped portion 411 and a platform portion 412. The lower support member 42 has a U-shaped portion 421 and a horizontal portion 422 extending outward from the end face of the U-shaped portion 421. The U-shaped portion 411 covers the horizontal portion 422, and the contact length is at least greater than 12 mm; if it is less than 12 mm, it will not adhere properly. The upper support member 41 and the lower support member 42 are connected to form a boss. The upper support member 41 is connected to the barrier membrane 43. The surface area 412 is configured according to the shape of the insulation material layer 5 and has at least one surface. The door sealing groove 2 abuts against the surface area 412 of the bottom shell 4 and is located inside the outer frame 1. In this embodiment, the surface area 412 has two surfaces, namely the first surface and the second surface. The first surface is closer to the bottom surface 13 than the second surface. The door sealing groove 2 abuts against the first surface, and the door seal 3 abuts against the second surface. Through this multi-surface structure, the insulation material layer 5 fits better with the door sealing groove 2 and the door seal 3. At the same time, it also makes the heat insulation area of ​​the insulation material layer 5 larger. The U-shaped part 421 is the area for accommodating the bottle frame.

[0029] Furthermore, the outer frame 1 has a side wall 11, and a bent portion 12 extends inward along the end face of the side wall 11, the bent portion 12 abutting against the side wall 11. The bent portion 12 serves to hold the door sealing groove 2 in place, further improving stability.

[0030] Furthermore, the outer frame 1 includes a bottom surface 13 and four side walls 11, the four side walls 11 being perpendicular to the bottom surface 13 and forming an accommodating space; or, the outer frame 1 includes a U-shaped sheet metal and two plastic handles, the U-shaped sheet metal being composed of the bottom surface 13 and two side walls 11, the two side walls 11 being perpendicular to the bottom surface 13, and the plastic handles being fixed between the two side walls 11 (i.e., the other two sides of the bottom surface 13 are sealed with plastic handles), the bottom surface 13, the two side walls 11 and the two plastic handles forming an accommodating space.

[0031] Furthermore, the length of the bend 12 is 30%-50% of the height of the side wall 11. If the length of the bend 12 is greater than 50% of the height of the side wall 11, it will require pressing down a long distance when assembling the door seal groove 2, making assembly difficult; if the length of the bend 12 is less than 30% of the height of the side wall 11, it may not be able to hold the door seal groove 2, resulting in unstable installation.

[0032] Furthermore, the outer wall of the door sealing groove 2 has positioning protrusions 21, which abut against the bending portion 12. The number of positioning protrusions 21 can be set according to actual needs. In this embodiment, the outer wall of the door sealing groove 2 has two positioning protrusions 21.

[0033] Furthermore, the outer wall of the door sealing groove 2 has positioning protrusions 21. Positioning protrusions 21 are located between the door sealing groove 2 and the outer frame 1, or between the door sealing groove 2 and the bottom shell 4, or between the door sealing groove 2 and the outer frame 1, or between the door sealing groove 2 and the bottom shell 4. The positioning protrusions 21 provide an interference fit. During assembly, adhesive 6 is pre-applied to the side wall 11, the bending portion 12, and the surface 412. The positioning protrusions 21 can carry the adhesive 6 downwards during the downward pressing assembly process, preventing the lower part of the assembly from lacking adhesive 6, which would affect the stability of the assembly.

[0034] Furthermore, the depth of the boss is H, which ranges from 15 to 100 mm, and the length of the bent portion 12 ranges from 12 to 35 mm. The width of the boss is the same as the width of the horizontal portion 422. The depth-to-width ratio of the boss is greater than 1. With the same door width, the smaller the width of the boss, the larger the area for placing the bottle frame can be obtained.

[0035] Furthermore, the door seal groove 2 has a fixing groove 22 and a hollow frame 23. The door seal 3 is inserted into the fixing groove 22, and the hollow frame 23 is close to the outer frame 1. The hollow frame 23 is filled with air, which can achieve a good heat insulation effect.

[0036] Furthermore, it also includes adhesive 6, which is located in the gaps between the outer frame 1 and the door sealing groove 2, between the door sealing groove 2 and the bottom shell 4, and between the outer frame 1 and the bottom shell 4. Adhesive 6 is a hot melt adhesive or glass glue. Adhesive 6 is used to fill gaps, increase the structural strength of the integrated door, and can also be used to repair any air leaks that may exist in the gaps, further increasing the product's lifespan.

[0037] In this invention, the protrusions of the inner liner in the prior art are directly made on the bottom shell 4. The insulation material layer 5 is vacuum compressed, so as the outer shell that forms the vacuum cavity, it needs high barrier performance to maintain the vacuum degree inside and keep the insulation material in a compressed state, that is, to coat the bottom shell 4.

[0038] However, if the bottom shell 4 is directly vacuum-formed into a single piece, then when the width of the boss is 25mm and the depth is 70mm, the depth-to-width ratio is too large (e.g., the depth-to-width ratio of the boss is greater than 1), which easily leads to incomplete plating, resulting in reduced barrier properties of the bottom shell 4. This invention separates the bottom shell 4 into two parts: a support member 41 and a lower support member 42. Both the support member 41 and the lower support member 42 are coated, avoiding the aforementioned drawback of an excessively large depth-to-width ratio. The deepest part of the boss can be successfully coated. Therefore, the bottle frame can be installed directly on the boss of the bottom shell 4 without relying on the boss on the inner liner. The refrigerator door installation no longer requires an inner liner, simplifying the structure and assembly steps.

[0039] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the technical scope of the present utility model. Therefore, any changes or modifications made in accordance with the claims and description of the present utility model should fall within the scope of the patent of the present utility model.

Claims

1. A vacuum insulation body, characterized in that: It comprises an outer frame, a door gasket groove, a door gasket, a bottom shell, a barrier film and a thermal insulation material layer, wherein the bottom shell covers the barrier film, the thermal insulation material layer is located in a vacuum cavity formed by the bottom shell and the barrier film, the barrier film is fixed on the outer frame, the door gasket is inserted into the door gasket groove, and the door gasket groove abuts against the bottom shell and is located in the outer frame; the bottom shell comprises an upper support member and a lower support member, the upper support member is provided with an L-shaped portion and a table surface portion, the lower support member is provided with a U-shaped portion and a horizontal portion formed by extending outward along an end surface of the U-shaped portion, the L-shaped portion covers the horizontal portion, the upper support member and the lower support member are connected to form a boss, and the upper support member is connected to the barrier film.

2. The vacuum insulation body according to claim 1, characterized in that: The outer frame is provided with a side wall, a bent portion is formed extending inward along an end surface of the side wall, and the bent portion abuts against the side wall.

3. A vacuum insulation body according to claim 2, characterized in that: The length of the bent portion is 30%-50% of the height of the side wall.

4. A vacuum insulation body according to claim 1, characterized in that: The table surface portion is provided with two table surfaces, which are a first table surface and a second table surface respectively, the door gasket groove abuts against the first table surface, and the door gasket abuts against the second table surface.

5. A vacuum insulation body according to claim 1, characterized in that: A positioning convex point is provided on an outer wall of the door gasket groove, the positioning convex point is located between the door gasket groove and the outer frame, the outer frame is provided with a side wall, a bent portion is formed extending inward along an end surface of the side wall, the bent portion abuts against the side wall, and the positioning convex point abuts against the bent portion; alternatively, the positioning convex point is provided on an outer wall of the door gasket groove, and the positioning convex point is located between the door gasket groove and the bottom shell; alternatively, the positioning convex point is provided on an outer wall of the door gasket groove, the positioning convex point is located between the door gasket groove and the outer frame, and the positioning convex point is located between the door gasket groove and the bottom shell.

6. A vacuum insulation body according to claim 1, characterized in that: The depth of the boss ranges from 15 mm to 100 mm, or the depth-to-width ratio of the boss is greater than 1.

7. A vacuum insulation body according to claim 1, characterized in that: The door gasket groove is provided with a fixing groove and a hollow frame, the door gasket is inserted into the fixing groove, and the hollow frame is close to the outer frame.

8. A vacuum insulation body according to claim 1, characterized in that: An adhesive is further comprised, and the adhesive is filled in gaps between the outer frame and the door gasket groove, between the door gasket groove and the bottom shell, and between the outer frame and the bottom shell.

9. A vacuum insulation body according to claim 2, characterized in that: The outer frame comprises a bottom surface and four side walls, the four side walls are perpendicular to the bottom surface and form an accommodation space; alternatively, the outer frame consists of a U-shaped sheet metal and two plastic handles, the U-shaped sheet metal comprises a bottom surface and two side walls, the two side walls are perpendicular to the bottom surface, the plastic handles are fixed between the two side walls, and the bottom surface, the two side walls and the two plastic handles form the accommodation space.

10. A vacuum insulation body according to claim 1, characterized in that: The covering length of the L-shaped portion on the horizontal portion is greater than 12 mm, or the length of the bent portion ranges from 12 mm to 35 mm.

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