Ultrathin heat insulation door body and refrigerator

Abstract

The invention provides an ultrathin heat insulation door body and a refrigerator, and relates to the technical field of refrigerator door bodies, the ultrathin heat insulation door body comprises a shell, a door liner, a vacuum heat insulation plate and a door body sealing strip, a through groove communicating with a cavity is formed in the middle of the second end of the shell, and the outer end of the door liner is fixedly connected with the inner wall of the shell; the outer wall of one side of the door liner and the inner wall of the first side of the shell form a square cavity, the outer side of the outer wall of the other side of the door liner and the inner wall of the second side of the shell form a concentric-square-shaped inserting groove, the vacuum heat insulation plate is arranged in the square cavity, and the door body sealing strip is connected with the concentric-square-shaped inserting groove in an inserted mode. According to the ultrathin heat insulation door body, only the vacuum heat insulation plate is adopted as a heat insulation material, the heat insulation performance of the door body can be improved, meanwhile, the door body is thin, the impact force of the appearance is large, and the occupied area of a refrigerator can be reduced.

Description

Technical Field

[0001] The present application relates to the technical field of refrigerator door bodies, and in particular to an ultra-thin insulated door body and a refrigerator. Background Art

[0002] At present, the total thickness of refrigerator refrigeration door is generally 35-55mm, and the total thickness of freezer door is 45-75mm; the door is filled with polyurethane insulation material, and vacuum insulation panels are also added to some freezer doors, that is, vacuum insulation panels and polyurethane are used as two insulation materials.

[0003] As we all know, the thermal insulation performance of vacuum insulation panels is 10 times that of polyurethane materials. Taking advantage of this feature, if vacuum insulation panels are used as door insulation materials, the thermal insulation performance of the door can be greatly improved and the thickness of the door insulation layer can be reduced.

[0004] However, the manufacturing process characteristics of vacuum insulation panels are only suitable for making regular structures, while existing refrigerator doors have many irregular parts, making it impossible to achieve a full vacuum insulation panel door, resulting in thicker refrigerator doors and poorer thermal insulation performance. Summary of the invention

[0005] The embodiments of the present application provide an ultra-thin insulated door body and a refrigerator, in which the door body only uses a vacuum insulation board as the thermal insulation material, which is beneficial to improving the thermal insulation performance of the door body. At the same time, the door body is thinner, the appearance has a greater impact, and the footprint of the refrigerator can be reduced, which solves the problem that the existing refrigerator door body has many irregular parts, cannot realize a full vacuum insulation board door body, the door body is thicker, and the thermal insulation performance is poor.

[0006] In a first aspect, an embodiment of the present application provides an ultra-thin insulating body, comprising:

[0007] A shell, wherein a cavity is provided inside the shell, the shell has a first end and a second end opposite to each other, and a through groove communicating with the cavity is provided in the middle of the second end of the shell;

[0008] A door liner is arranged in the shell, the outer end of the door liner is fixedly connected to the inner wall of the shell, the outer wall of one side of the door liner and the inner wall of the first side of the shell form a square cavity, the outer side of the outer wall of the other side of the door liner and the inner wall of the second side of the shell form a circular slot, and the plane of the circular slot is perpendicular to the thickness direction of the door body;

[0009] A vacuum insulation panel is arranged in the square cavity, wherein the outer wall of the vacuum insulation panel is in contact with the inner wall of the outer shell and the outer wall of the door;

[0010] A door body sealing strip connected to the outer shell and the door liner, the door body sealing strip includes a circular sealing portion and a circular plug-in portion matching the circular slot, the outer end of the circular plug-in portion is plugged into the circular slot, one end of the circular sealing portion is connected to the inner end of the circular plug-in portion, the other end of the circular sealing portion passes through the same groove and extends to a side away from the door liner, the other end of the circular sealing portion is provided with a sealing plane, and the outer side wall of the circular sealing portion is in contact with the inner side wall of the through groove.

[0011] In a feasible implementation, a buckle is provided on the outer wall of the other side of the door liner, and the buckle is used to fix the bottle frame;

[0012] There are multiple buckles, and the buckles are evenly distributed.

[0013] In a feasible implementation, the outer side wall of the housing is provided with a rotating shaft;

[0014] The rotating shaft is connected to the shell by rivets or welding.

[0015] In a feasible implementation, a handle is provided on the first side outer wall of the housing;

[0016] The handle is snap-connected or welded to the shell.

[0017] In a feasible implementation, the handle includes a first connecting plate and a first hand-held portion;

[0018] One ends of the two first connection parts are fixedly connected to the first side outer wall of the shell, and the first hand-held part is fixedly connected to the other ends of the two first connection parts.

[0019] In a feasible implementation, the handle includes a second connecting plate and a second hand-held portion;

[0020] One ends of the two second connection parts are rotatably connected to the first side outer wall of the shell, and the second hand-held part is fixedly connected to the other ends of the two second connection parts.

[0021] In a feasible implementation, the housing is made of metal;

[0022] The door liner is made of engineering plastic;

[0023] The handle is made of metal or plastic.

[0024] In a second aspect, an embodiment of the present application provides a refrigerator, comprising a cabinet and the above-mentioned ultra-thin insulated body;

[0025] The ultra-thin insulation body is movably connected to the box body.

[0026] In a feasible implementation, the ultra-thin insulated body is connected to the box body via a plurality of rotating shafts, and the plurality of rotating shafts are evenly distributed;

[0027] One end of the rotating shaft is fixedly connected to the outer side wall of the shell, and the other end of the rotating shaft is fixedly connected to the outer side wall of the box body.

[0028] In a feasible implementation, when the ultra-thin insulation body is closed, the sealing plane of the door sealing strip fits against the outer wall of the open end of the box body, so that the connection between the ultra-thin insulation body and the box body is sealed.

[0029] An ultra-thin insulated body and a refrigerator provided in an embodiment of the present application, the ultra-thin insulated body comprising an outer shell, a door liner, a vacuum insulation panel and a door body sealing strip, a through groove connected to a cavity is provided in the middle of the second end of the outer shell, an outer end of the door liner is fixedly connected to an inner wall of the outer shell, an outer wall on one side of the door liner and an inner wall on a first side of the outer shell form a square cavity, an outer side of an outer wall on the other side of the door liner and an inner wall on a second side of the outer shell form a circular slot, the vacuum insulation panel is arranged in the square cavity, and the door body sealing strip is plugged into the circular slot;

[0030] The door body sealing strip comprises a circular sealing portion and a circular plug-in portion, wherein the outer end of the circular plug-in portion is plugged into the circular slot, one end of the circular sealing portion is connected to the inner end of the circular plug-in portion, and the other end of the circular sealing portion passes through the same slot and extends to a side away from the door liner;

[0031] The ultra-thin insulated door provided in the present application only uses vacuum insulation panels as insulation materials, which is beneficial to improving the thermal insulation performance of the door body. At the same time, the door body is thinner, the appearance has a greater impact, and the refrigerator footprint can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a structural schematic diagram of an existing refrigerator door body;

[0033] Figure 2 yes Figure 1 The enlarged view of point A in the middle;

[0034] Figure 3 It is a schematic diagram of the structure of the ultra-thin insulated body provided by the present application;

[0035] Figure 4 It is a cross-sectional view of an ultra-thin insulated body;

[0036] Figure 5 It is a structural schematic diagram of the refrigerator provided in this application.

[0037] Description of reference numerals:

[0038] 1-Box body; 2-Ultra-thin insulated body;

[0039] 10-housing; 20-door liner; 30-square cavity; 40-reciprocating slot; 50-vacuum insulation board; 60-door sealing strip; 70-buckle; 80-rotating shaft; 90-handle;

[0040] 61-return-shaped sealing portion; 62-return-shaped plug-in portion; 63-sealing plane. DETAILED DESCRIPTION

[0041] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work should fall within the scope of protection of the present application.

[0042] The thermal conductivity of vacuum insulation panels is 2.0mW / (mk), and the thermal conductivity of polyurethane is 20.0mW / (mk). If only vacuum insulation panels are used as door insulation materials, the thermal insulation performance of the door can be greatly improved and the thickness of the door insulation layer can be reduced.

[0043] However, the manufacturing process characteristics of vacuum insulation panels are only suitable for making regular structures, such as Figure 1 and Figure 2 As shown, Figure 1 It is a structural schematic diagram of an existing refrigerator door body. Figure 2 yes Figure 1 The enlarged view of A in the figure shows that B is a hidden handle and C is the inserted and fixed part of the door body sealing strip. The existing refrigerator door body has many irregular parts, such as the part of the door body that fixes the bottle frame, the rotating shaft part of the door body, the door body handle, and the door body sealing strip. Therefore, to realize the full vacuum insulation panel door body, the problem of the above four irregular parts needs to be solved.

[0044] The present application eliminates the protruding part of the door liner in the side view, changes the door liner into a solid engineering plastic, and sets several groups of protruding clips on the door liner to fix the bottle frame; eliminates the door body hinge part, sets the door hinge on the side, and fixes the hinge to the door body and the box body by rivets or welding; eliminates the hidden handle part of the door body, sets the door body handle at the edge of the front of the door body, and adopts an external handle method, which is fixed by opening clips or welding. The door body shell material is metal, and the handle material is metal or plastic; eliminates the door body sealing strip insertion part, and sets the sealing strip insertion part in a strip shape, which is stuck between the door liner and the door shell.

[0045] After improving the above technical difficulties, the door vacuum insulation panel can be designed into a flat and regular shape. At the same time, by taking advantage of the excellent thermal insulation performance of the vacuum insulation panel, the door body only uses the vacuum insulation panel as the thermal insulation material, and the thickness of the door body can be greatly reduced. The total thickness of the refrigerated door body is 15-30mm, and the total thickness of the frozen door body is 20-40mm.

[0046] The specific structure of the ultra-thin insulated body and refrigerator provided by the present application is described in detail below with reference to the accompanying drawings.

[0047] Reference Figure 3-Figure 4 As shown, an embodiment of the present application provides an ultra-thin insulating body, including an outer shell 10, a door liner 20 arranged in the outer shell 10, a vacuum insulation panel 50 arranged in the square cavity 30, and a door body sealing strip 60 connected to the outer shell 10 and the door liner 20.

[0048] like Figure 2 As shown, the existing door sealing strips are mostly fixed by insertion, that is, the edge portions around the door liner are recessed, and the fixed portion of the door sealing strip is inserted into the recess, thus causing the door to be irregular.

[0049] like Figure 4 As shown, the ultra-thin insulated body 2 provided in the present application has a shell 10 made of metal, and the shell 10 is a thin rectangular parallelepiped as a whole, and a cavity is provided inside the shell 10;

[0050] The housing 10 has a first end and a second end opposite to each other. Figure 3 In the embodiment, the left end of the shell 10 is the first end, the right end of the shell 10 is the second end, the outer wall of the left end of the shell 10 is a plane, and the middle part of the second end of the shell 10 is provided with a through groove connected to the cavity, and the through groove is used to install the door body sealing strip 60, so the ratio of the through groove size to the right side of the shell 10 is the same as the ratio of the conventional sealing strip size to the inner side of the refrigerator door;

[0051] The door liner 20 can be made of solid engineering plastic. The door liner 20 is vertically fixed in the shell 10. The outer end of the door liner 20 is fixedly connected to the inner wall of the shell 10. The outer wall of one side of the door liner 20 and the inner wall of the first side of the shell 10 form a square cavity 30. The outer side of the outer wall of the other side of the door liner 20 and the inner wall of the second side of the shell 10 form a circular slot 40. The plane of the circular slot 40 is perpendicular to the thickness direction of the door body.

[0052] like Figure 3 and Figure 4 As shown, the door liner 20 can be a rectangular plate, and the left outer wall of the door liner 20 and the left inner wall of the shell 10 form a square cavity 30. The thickness of the square cavity 30 can be designed according to actual needs. The outer side of the right side surface of the door liner 20 and the right inner wall of the shell 10 form a circular slot 40.

[0053] The size of the vacuum insulation panel 50 matches the size of the square cavity 30 , and the outer wall of the vacuum insulation panel 50 fits the inner wall of the shell 10 and the outer wall of the door liner 20 ;

[0054] The vacuum insulation panel 50 is mainly composed of three parts: core material, barrier film and adsorbent. The core material is generally made of inorganic materials such as glass fiber and fumed silica, which plays the role of structural support, preventing heat radiation and reducing heat conduction; the barrier film is composed of a base film and a multi-layer special film composite, which is used to cover and isolate the core material and prevent penetration; the adsorbent is made of metal particles with adsorption function, etc., which is used to absorb excess gas and water vapor.

[0055] The vacuum insulation panel 50 increases the internal vacuum degree by extracting the gas in the panel, effectively eliminating the heat transfer paths caused by the gas, such as conduction, convection and radiation, thereby achieving the purpose of heat preservation and energy saving.

[0056] The vacuum insulation panel 50 has the following performance characteristics:

[0057] 1. Good insulation performance: The thermal conductivity can be as low as 0.002-0.008W / (m·K), which is 1 / 10 of traditional insulation materials. It is a cost-effective choice for improving energy efficiency and reducing energy consumption of household appliances such as refrigerators.

[0058] 2. Lightweight and efficient: While achieving the same thermal insulation effect, the thickness used is only one-tenth of that of traditional materials, which can save a lot of space.

[0059] 3. Environmental protection and energy saving: During the production and application process, no ozone-depleting substances are used, no greenhouse gases are generated, and the core material can be recycled.

[0060] 4. Good fireproof performance: Some vacuum insulation panels are made of inorganic thermal insulation materials, such as STP ultra-thin vacuum insulation panels, which have a fireproof grade of A and are non-combustible.

[0061] like Figure 4 As shown, the door body sealing strip 60 can be made of rubber material, and the door body sealing strip 60 includes a return-shaped sealing portion 61 and a return-shaped plug-in portion 62 that match the return-shaped slot 40, and the return-shaped plug-in portion 62 is a thinner return-shaped sealing pad, and the outer end of the return-shaped plug-in portion 62 is plugged into the return-shaped slot 40;

[0062] The return-shaped sealing portion 61 is a return-shaped sealing gasket with a certain thickness, one end of the return-shaped sealing portion 61 is connected to the inner end of the return-shaped plug-in portion 62, and the other end of the return-shaped sealing portion 61 passes through the through groove and extends to a side away from the door liner 20;

[0063] exist Figure 4In the figure, the left end of the return-shaped sealing part 61 is fixedly connected to the inner wall of the return-shaped plug-in part 62, and the right end of the return-shaped sealing part 61 extends to the right and passes through the through groove. The outer wall of the return-shaped sealing part 61 is fitted with the inner wall of the through groove. The right end of the return-shaped sealing part 61 extends out of the through groove for a certain length, and the right end of the return-shaped sealing part 61 is provided with a sealing plane 63, which is used to fit with the refrigerator body to achieve sealing between the door and the body.

[0064] An ultra-thin insulated door body provided in an embodiment of the present application uses only a vacuum insulation board as a thermal insulation material, which is beneficial to improving the thermal insulation performance of the door body. At the same time, the door body is thinner, the appearance has a greater impact, and the footprint of the refrigerator can be reduced.

[0065] Reference Figure 3 As shown, in some embodiments, a buckle 70 is provided on the outer wall of the other side of the door liner 20, and the buckle 70 is used to fix the bottle frame, and the specific structure of the buckle 70 is not limited;

[0066] There are multiple buckles 70, and the buckles 70 are evenly distributed. Figure 3 As shown, there are four buckles 70 distributed in two rows and two columns. The multiple buckles 70 can also be distributed in other shapes.

[0067] The ultra-thin insulating body provided in the present application eliminates the protruding part of the door liner from the side view, replaces the door liner with a solid engineering plastic, and provides several sets of protruding clips on the door liner to fix the bottle frame, so that the door vacuum insulation panel can be designed into a flat and regular shape.

[0068] Reference Figure 3 As shown, in some embodiments, the outer side wall of the housing 10 is provided with a rotating shaft 80;

[0069] The rotating shaft 80 is connected to the housing 10 by rivets or welding.

[0070] The ultra-thin insulation body provided by the present application eliminates the door body rotation axis part, sets the door rotation axis on the side, and fixes the rotation axis to the door body and the box body by rivets or welding, so that the door body vacuum insulation board can be designed into a flat and regular shape

[0071] Reference Figure 3 As shown, in some embodiments, a handle 90 is provided on the first side outer wall of the housing 10;

[0072] The handle 90 is snap-fitted or welded to the housing 10 .

[0073] In some embodiments, the handle 90 is a fixed handle, and the handle 90 includes a first connecting plate and a first grip portion;

[0074] One ends of the two first connection parts are fixedly connected to the first side outer wall of the housing 10, and the first hand-held part is fixedly connected to the other ends of the two first connection parts.

[0075] The first connecting part can be a connecting rod, the right ends of the two connecting rods are fixedly connected to the left side of the shell 10, and the first hand-held part is a handle, which is fixedly connected to the left ends of the two connecting rods to form a U-shaped fixed handle.

[0076] In some embodiments, the handle 90 is a rotating handle, and the handle 90 includes a second connecting plate and a second grip portion;

[0077] One ends of the two second connection parts are rotatably connected to the first side outer wall of the housing 10, and the second hand-held part is fixedly connected to the other ends of the two second connection parts.

[0078] The second connecting part can be a rod body, and the right ends of the two rod bodies are rotatably connected to the left side of the shell 10. The second hand-held part can be a handle, which is fixedly connected to the left ends of the two rod bodies, so that the handle 90 can swing up and down relative to the shell 10 to reduce the occupied space.

[0079] Most of the existing door handles are hidden handles, that is, a part of the door side is recessed for opening and closing the door, resulting in an irregular shape of the door.

[0080] The ultra-thin insulated door body provided in the present application eliminates the hidden handle part of the door body, and sets the door handle at the edge of the front side of the door body, adopts an external handle method, and the external handle is fixed by a snap buckle or welding method. The door body shell material is metal, and the handle material is metal or plastic.

[0081] After improving the above technical difficulties, the door vacuum insulation panel can be designed into a flat and regular shape. At the same time, by taking advantage of the excellent thermal insulation performance of the vacuum insulation panel, the door body only uses the vacuum insulation panel as the thermal insulation material, and the thickness of the door body can be greatly reduced. The total thickness of the refrigerated door body is 15-30mm, and the total thickness of the frozen door body is 20-40mm.

[0082] The thermal conductivity of vacuum insulation panels is 2.0mW / (mk), and the thermal conductivity of polyurethane is 20.0mW / (mk); therefore, the total thickness of the refrigerated door body using the existing polyurethane insulation material is reduced from 35-55mm to 15-30mm thick vacuum insulation panel door body; the total thickness of the frozen door body using the existing polyurethane insulation material is reduced from 45-75mm to 20-40mm thick vacuum insulation panel door body. The thermal insulation performance of the door body will not be reduced, and thus the performance of the entire refrigerator will not be affected.

[0083] like Figure 5 As shown, the present application also provides a refrigerator, which includes a box body 1 and the above-mentioned ultra-thin insulated body 2;

[0084] The ultra-thin insulation body 2 is movably connected to the box body 1 .

[0085] In some embodiments, the ultra-thin insulation body 2 is connected to the box body 1 via a plurality of rotating shafts 80, and the plurality of rotating shafts 80 are evenly distributed;

[0086] One end of the rotating shaft 80 is fixedly connected to the outer wall of the housing 10 , and the other end of the rotating shaft 80 is fixedly connected to the outer wall of the box body 1 .

[0087] When the ultra-thin insulation door body 2 is closed, the sealing plane 63 of the door sealing strip 60 fits against the outer wall of the open end of the box body 1 to seal the connection between the ultra-thin insulation door body 2 and the box body 1 .

[0088] It is easy to understand that those skilled in the art can combine, split, reorganize, etc. the embodiments of the present application to obtain other embodiments based on the several embodiments provided in the present application, and these embodiments do not exceed the protection scope of the present application.

[0089] The above specific implementation methods further explain in detail the purpose, technical solutions and beneficial effects of the embodiments of the present application. It should be understood that the above are only specific implementation methods of the embodiments of the present application and are not used to limit the protection scope of the embodiments of the present application. Any modifications, equivalent substitutions, improvements, etc. made on the basis of the technical solutions of the embodiments of the present application should be included in the protection scope of the embodiments of the present application.

Claims

1. An ultra-thin insulating body, characterized in that: include; A shell (10), wherein a cavity is provided inside the shell (10), the shell (10) has a first end and a second end opposite to each other, and a through groove communicating with the cavity is provided in the middle of the second end of the shell (10); A door liner (20) is arranged in the outer shell (10), the outer end of the door liner (20) is fixedly connected to the inner wall of the outer shell (10), the outer wall on one side of the door liner (20) and the inner wall on the first side of the outer shell (10) form a square cavity (30), the outer side of the outer wall on the other side of the door liner (20) and the inner wall on the second side of the outer shell (10) form a circular slot (40), and the plane where the circular slot (40) is located is perpendicular to the thickness direction of the door body; A vacuum insulation panel (50) is arranged in the square cavity (30), the outer wall of the vacuum insulation panel (50) being in contact with the inner wall of the outer shell (10) and the outer wall of the door liner (20); A door body sealing strip (60) connected to the outer shell (10) and the door liner (20), the door body sealing strip (60) includes a circular sealing portion (61) and a circular plug-in portion (62) matching the circular slot (40), the outer end of the circular plug-in portion (62) is plugged into the circular slot (40), one end of the circular sealing portion (61) is connected to the inner end of the circular plug-in portion (62), the other end of the circular sealing portion (61) passes through the through groove and extends to a side away from the door liner (20), the other end of the circular sealing portion (61) is provided with a sealing plane (63), and the outer side wall of the circular sealing portion (61) is in contact with the inner side wall of the through groove.

2. The ultra-thin insulating body according to claim 1, characterized in that: The outer wall of the other side of the door liner (20) is provided with a buckle (70), and the buckle (70) is used to fix the bottle frame; A plurality of the buckles (70) are provided, and the plurality of the buckles (70) are evenly distributed.

3. The ultra-thin insulating body according to claim 1, characterized in that: The outer side wall of the housing (10) is provided with a rotating shaft (80); The rotating shaft (80) is connected to the housing (10) by rivets or welding.

4. The ultra-thin insulating body according to claim 1, characterized in that: A handle (90) is provided on the first side outer wall of the housing (10); The handle (90) is snap-connected or welded to the housing (10).

5. The ultra-thin insulating body according to claim 4, characterized in that: The handle (90) comprises a first connecting plate and a first hand-holding portion; One ends of the two first connection parts are fixedly connected to the first side outer wall of the housing (10), and the first hand-held part is fixedly connected to the other ends of the two first connection parts.

6. The ultra-thin insulating body according to claim 4, characterized in that: The handle (90) comprises a second connecting plate and a second hand-holding portion; One end of each of the two second connection parts is rotatably connected to the first side outer wall of the housing (10), and the second The two hand-grips are fixedly connected to the other ends of the two second connection parts.

7. The ultra-thin insulating body according to claim 4, characterized in that: The housing (10) is made of metal; The door liner (20) is made of engineering plastic; The handle (90) is made of metal or plastic.

8. A refrigerator, characterized in that: It comprises a box body (1) and an ultra-thin insulating door body (2) as claimed in any one of claims 1 to 7; The ultra-thin insulating body (2) is movably connected to the box body (1).

9. The refrigerator according to claim 8, characterized in that: The ultra-thin insulating body (2) is connected to the box body (1) via a plurality of rotating shafts (80), and the plurality of rotating shafts (80) are evenly distributed; One end of the rotating shaft (80) is fixedly connected to the outer wall of the outer shell (10), and the other end of the rotating shaft (80) is fixedly connected to the outer wall of the box body (1).

10. The refrigerator according to claim 8, characterized in that: When the ultra-thin insulating door body (2) is closed, the sealing plane (63) of the door sealing strip (60) fits against the outer wall of the open end of the box body (1) so that the connection between the ultra-thin insulating door body (2) and the box body (1) is sealed.

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