Ultra-thin heat-insulating door body and refrigerator

Abstract

The application provides an ultrathin heat-insulating door body and a refrigerator, relates to the technical field of refrigerator door bodies, and the ultrathin heat-insulating door body comprises an outer shell, a door barrel, a vacuum heat-insulating plate and a door body sealing strip, the middle part of the second end of the outer shell is provided with a through groove in communication with a cavity, the outer end of the door barrel is fixedly connected with the inner wall of the outer shell, the outer wall of one side of the door barrel and the first side inner wall of the outer shell form a square cavity, the outer side of the outer wall of the other side of the door barrel and the second side inner wall of the outer shell form a back-shaped insertion groove, the vacuum heat-insulating plate is arranged in the square cavity, and the door body sealing strip is inserted with the back-shaped insertion groove. The ultrathin heat-insulating door body provided by the application only uses the vacuum heat-insulating plate as a heat-insulating material, is favorable for improving the heat-insulating performance of the door body, the door body is relatively thin, the appearance impact force is relatively large, and the floor area of the refrigerator can be reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of refrigerator door body, and in particular to an ultrathin heat insulation door body and a refrigerator. BACKGROUND

[0002] At present, the total thickness of the refrigerator cold storage door body is generally 35-55mm, and the total thickness of the refrigerator freezing door body is 45-75mm; the door body is filled with polyurethane insulation material, and some refrigerator freezing door bodies also increase vacuum heat insulation boards, that is, the vacuum heat insulation board and the polyurethane insulation material are used together.

[0003] As is known to all, the heat preservation performance of the vacuum heat insulation board is 10 times that of the polyurethane material. By using this characteristic, if the vacuum heat insulation board is used as the door body insulation material, the heat preservation performance of the door body can be greatly improved, and the thickness of the door body insulation layer can be reduced.

[0004] However, the vacuum heat insulation board manufacturing process is only suitable for making regular structures, and the existing refrigerator door body has many irregular parts, so it is impossible to realize a full vacuum heat insulation board door body, resulting in a thick refrigerator door body and poor heat preservation performance. SUMMARY

[0005] The present application provides an ultrathin heat insulation door body and a refrigerator, which only uses a vacuum heat insulation board as an insulation material, is beneficial to improve the heat preservation performance of the door body, has a relatively thin door body, has a relatively large appearance impact, and can reduce the floor area of the refrigerator, and solves the problems of the existing refrigerator door body, that is, many irregular parts, the inability to realize a full vacuum heat insulation board door body, a thick door body, and poor heat preservation performance.

[0006] In a first aspect, the present application provides an ultrathin heat insulation door body, comprising:

[0007] An outer shell, an inner part of the outer shell is provided with a cavity, the outer shell has opposite first and second ends, and a through slot is arranged in the middle of the second end of the outer shell and is in communication with the cavity;

[0008] A door tank arranged in the outer shell, an outer end of the door tank is fixedly connected with an inner wall of the outer shell, a side outer wall of the door tank and a first side inner wall of the outer shell form a square cavity, and an outer side of another side outer wall of the door tank and a second side inner wall of the outer shell form a back-shaped insertion slot, and a plane where the back-shaped insertion slot is arranged is perpendicular to a thickness direction of the door body;

[0009] A vacuum heat insulation board arranged in the square cavity, and an outer wall of the vacuum heat insulation board is attached to the inner wall of the outer shell and the outer wall of the door tank;

[0010] A door sealing strip connected with the door body and the door body tank, the door sealing strip comprises a back-shaped sealing part and a back-shaped inserting part, the outer end of the back-shaped inserting part is inserted with the back-shaped slot, one end of the back-shaped sealing part is connected with the inner end of the back-shaped inserting part, the other end of the back-shaped sealing part extends to the side away from the door body tank through the same slot, the other end of the back-shaped sealing part is provided with a sealing plane, and the outer side wall of the back-shaped sealing part is matched with the inner side wall of the through slot.

[0011] In an implementation, the other side outer wall of the door body tank is provided with buckles for fixing the bottle frame.

[0012] The buckles are provided in plurality, and the plurality of buckles are uniformly distributed.

[0013] In an implementation, the outer side wall of the shell is provided with a rotating shaft.

[0014] The rotating shaft is riveted or welded with the shell.

[0015] In an implementation, the first side outer wall of the shell is provided with a handle.

[0016] The handle is clamped or welded with the shell.

[0017] In an implementation, the handle comprises a first connecting plate and a first hand-holding part.

[0018] One end of the two first connecting parts is fixedly connected with the first side outer wall of the shell, and the other end of the first hand-holding part is fixedly connected with the two first connecting parts.

[0019] In an implementation, the handle comprises a second connecting plate and a second hand-holding part.

[0020] One end of the two second connecting parts is rotatably connected with the first side outer wall of the shell, and the other end of the second hand-holding part is fixedly connected with the two second connecting parts.

[0021] In an implementation, the shell is made of metal.

[0022] The door body tank is made of engineering plastic.

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

[0024] In a second aspect, the embodiments of the present application provide a refrigerator, comprising a cabinet and the ultra-thin heat-insulating door body.

[0025] The ultra-thin heat-insulating door body is movably connected with the cabinet.

[0026] In an implementable manner, the ultra-thin heat-insulating door body is connected with the cabinet through a plurality of rotating shafts, and the rotating shafts are uniformly distributed;

[0027] One end of the rotating shaft is fixedly connected with the outer sidewall of the shell, and the other end of the rotating shaft is fixedly connected with the outer sidewall of the cabinet.

[0028] In an implementable manner, when the ultra-thin heat-insulating door body is closed, the sealing plane of the door body sealing strip is attached to the outer wall of the open end of the cabinet, so as to seal the connection between the ultra-thin heat-insulating door body and the cabinet.

[0029] The embodiment of the present application provides an ultra-thin heat-insulating door body and a refrigerator. The ultra-thin heat-insulating door body comprises a shell, a door body, a vacuum heat-insulating plate and a door body sealing strip. The middle part of the second end of the shell is provided with a through slot which is in communication with the cavity. The outer end of the door body is fixedly connected with the inner wall of the shell. The outer wall of one side of the door body forms a square cavity with the first side inner wall of the shell. The outer side of the other side outer wall of the door body forms a back-shaped insertion slot with the second side inner wall of the shell. The vacuum heat-insulating plate is arranged in the square cavity. The door body sealing strip is inserted into the back-shaped insertion slot.

[0030] The door body sealing strip comprises a back-shaped sealing part and a back-shaped insertion part. The outer end of the back-shaped insertion part is inserted into the back-shaped insertion slot. One end of the back-shaped sealing part is connected with the inner end of the back-shaped insertion part. The other end of the back-shaped sealing part penetrates through the same slot and extends to the side away from the door body.

[0031] The ultra-thin heat-insulating door body provided by the present application only uses a vacuum heat-insulating plate as a heat-insulating material, which is beneficial to improve the heat-insulating performance of the door body. Meanwhile, the door body is relatively thin, the appearance impact force is relatively large, and the floor area occupied by the refrigerator can be reduced. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 is a structural schematic diagram of a prior refrigerator door body;

[0033] Figure 2 is Figure 1 is an enlarged view of A in FIG. 4;

[0034] Figure 3 is a structural schematic diagram of an ultra-thin heat-insulating door body provided by the present application;

[0035] Figure 4 is a sectional view of the ultra-thin heat-insulating door body;

[0036] Figure 5 is a structural schematic diagram of a refrigerator provided by the present application.

[0037] MARKED FOR EXPLANATION:

[0038] 1-cabinet; 2-ultra-thin heat-insulating door body;

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

[0040] 61 - back type sealing part; 62 - back type plug-in part; 63 - sealing plane. DETAILED DESCRIPTION

[0041] In order to make the person skilled in the art 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 combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by the person skilled in the art without creative labor should belong to the scope of protection of the present application.

[0042] The thermal conductivity of the vacuum insulation panel is 2.0 mW / (m.k), and the thermal conductivity of the polyurethane is 20.0 mW / (m.k). If only the vacuum insulation panel is used as the door body thermal insulation material, the thermal insulation performance of the door body can be greatly improved, and the thickness of the thermal insulation layer of the door body can be reduced.

[0043] However, the vacuum insulation panel manufacturing process is only suitable for making regular structures, such as Figure 1 and Figure 2 as shown, Figure 1 is a structure diagram of the existing refrigerator door body, Figure 2 is an enlarged view of A in Figure 1 , and B is a hidden handle, and C is an insertion and fixing part of the door body sealing strip. The existing refrigerator door body has many irregular parts, such as the part of the door body fixed bottle frame, the rotating shaft part of the door body, the door handle of the door body, and the door body sealing strip. Therefore, in order to realize the full vacuum insulation panel door body, the above-mentioned four irregular parts need to be solved.

[0044] The present application cancels the protruding part of the door liner side view, changes the door liner to a solid engineering plastic, sets several groups of protruding buckles on the door liner for fixing the bottle frame, cancels the door body rotating shaft part, sets the door rotating shaft on the side, and fixes the rotating shaft with the door body and the box by riveting or welding. The hidden handle part of the door body is cancelled, the door handle is set on the edge of the front of the door body, the outer handle is adopted, the outer handle fixing method is adopted, the opening buckle or welding method is adopted, the door body shell material is metal, the handle material is metal or plastic, and the insertion part of the sealing strip is cancelled. The insertion part of the sealing strip is set in a strip shape and is clamped between the door liner and the door shell.

[0045] After the improvement of the above technical difficulties, the door body vacuum heat insulation plate can be designed into a flat and regular shape. At the same time, by using the excellent heat preservation performance of the vacuum heat insulation plate, the door body only uses the vacuum heat insulation plate as the heat preservation material, so that the thickness of the door body can be greatly reduced. The total thickness of the refrigeration door body is 15-30mm, and the total thickness of the freezing door body is 20-40mm.

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

[0047] Referring to Figures 3-4 , the present application provides an ultra-thin heat insulation door body, which comprises an outer shell 10, a door liner 20 arranged in the outer shell 10, a vacuum heat insulation plate 50 arranged in the square cavity 30, and a door body sealing strip 60 connected with the outer shell 10 and the door liner 20.

[0048] As Figure 2 shown, the door body sealing strip is usually fixed by insertion, that is, the edge part of the door liner is recessed, and the fixed part of the door body sealing strip is inserted into the recess, thereby causing the door body to be irregular.

[0049] As Figure 4 shown, the ultra-thin heat insulation door body 2 provided by the present application is made of metal material, and the outer shell 10 is a relatively thin cuboid. The inner part of the outer shell 10 is provided with a cavity.

[0050] The outer shell 10 has opposite first and second ends. In Figure 3 , the left end of the outer shell 10 is the first end, the right end of the outer shell 10 is the second end, the left outer wall of the outer shell 10 is a plane, and the middle part of the second end of the outer shell 10 is provided with a through slot in communication with the cavity. The through slot is used for installing the door body sealing strip 60, so the size ratio of the through slot to the right side surface of the outer shell 10 is the same as that of the conventional sealing strip to the inner side surface of the refrigerator door.

[0051] The door liner 20 can be a solid engineering plastic, and the door liner 20 is vertically fixed in the outer shell 10. The outer end of the door liner 20 is fixedly connected with the inner wall of the outer shell 10. One side outer wall of the door liner 20 forms a square cavity 30 with the first side inner wall of the outer shell 10. The outer side of the other side outer wall of the door liner 20 forms a back-type insertion slot 40 with the second side inner wall of the outer shell 10. The plane of the back-type insertion slot 40 is perpendicular to the thickness direction of the door body.

[0052] As Figure 3 and Figure 4 shown, the door liner 20 can be a rectangular plate body. The left side outer wall of the door liner 20 forms a square cavity 30 with the left side inner wall of the outer shell 10. The thickness of the square cavity 30 can be designed according to actual requirements. The outer side of the right side surface of the door liner 20 forms a back-type insertion slot 40 with the right side inner wall of the outer shell 10.

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

[0054] The vacuum insulation board 50 is mainly composed of a core material, a barrier film and an adsorbent. The core material is generally selected from inorganic materials such as glass fiber and fumed silica, which serves to support the structure, prevent heat radiation and reduce heat conduction. The barrier film is composed of a base film and a plurality of special films, which is used to cover and insulate the core material and prevent penetration. The adsorbent is made of metal particles with adsorption function, which is used to adsorb excess gas and water vapor.

[0055] The vacuum insulation board 50 can effectively eliminate the heat transfer paths caused by gas, such as conduction, convection and radiation, by extracting the gas in the board to improve the internal vacuum, thereby achieving the purpose of thermal insulation and energy saving.

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

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

[0058] 2. Light, thin and efficient: In the case of achieving the same thermal insulation effect, the thickness is only one-tenth of traditional materials, which can save a lot of space.

[0059] 3. Environmentally friendly and energy saving: No ozone-depleting substances are used in the production and application process, and no greenhouse gases are generated. The core material can also be recycled.

[0060] 4. Good fireproof performance: Some vacuum insulation boards use inorganic insulation materials, such as STP ultra-thin vacuum insulation boards, which have a fire rating of A-class non-combustible.

[0061] As shown in Figure 4 The door sealing strip 60 can be made of rubber, and the door sealing strip 60 includes a back-shaped sealing part 61 matched with the back-shaped slot 40 and a back-shaped insertion part 62, which is a relatively thin back-shaped sealing pad, and the outer end of the back-shaped insertion part 62 is inserted into the back-shaped slot 40;

[0062] The back-shaped sealing part 61 is a back-shaped sealing pad with a certain thickness, one end of the back-shaped sealing part 61 is connected to the inner end of the back-shaped insertion part 62, and the other end of the back-shaped sealing part 61 extends away from the door tank 20 through the through slot;

[0063] In Figure 4In the middle, the left end of the return type sealing part 61 is fixedly connected with the inner side wall of the return type plug-in part 62, the right end of the return type sealing part 61 extends to the right, penetrates the through slot, the outer side wall of the return type sealing part 61 is in close contact with the inner side wall of the through slot, and the right end of the return type sealing part 61 protrudes out of the through slot by a certain length. The right end of the return type sealing part 61 is provided with a sealing plane 63, which is used to be in close contact with the refrigerator box body to realize sealing between the door and the box body.

[0064] The ultra-thin heat-insulating door body provided by the embodiment of the application only uses vacuum heat insulation plates as thermal insulation materials, is beneficial to improving the thermal insulation performance of the door body, has a relatively large appearance impact force, and can reduce the floor area occupied by the refrigerator.

[0065] Referring to Figure 3 As shown in the figure, in some embodiments, the other side outer wall of the door liner 20 is provided with buckles 70 for fixing the bottle frame, and the specific structure of the buckles 70 is not limited;

[0066] The buckles 70 are provided in a plurality of numbers, and the plurality of buckles 70 are uniformly distributed, as Figure 3 As shown in the figure, the buckles 70 are provided in four numbers and are distributed in two rows and two columns, and the plurality of buckles 70 can also be distributed in other shapes.

[0067] The ultra-thin heat-insulating door body provided by the application cancels the protruding part of the door liner side view, changes the door liner into a solid engineering plastic, and sets several groups of protruding buckles on the door liner for fixing the bottle frame, so that the vacuum heat insulation plate of the door body can be designed into a flat and regular shape.

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

[0069] The rotating shaft 80 is rivet-connected or welded with the shell 10.

[0070] The ultra-thin heat-insulating door body provided by the application cancels the rotating shaft part of the door body, sets the door rotating shaft on the side surface, and fixes the rotating shaft with the door body and the box body by riveting or welding, so that the vacuum heat insulation plate of the door body can be designed into a flat and regular shape.

[0071] Referring to Figure 3 As shown in the figure, in some embodiments, the first side outer wall of the shell 10 is provided with a handle 90;

[0072] The handle 90 is clamped or welded with the shell 10.

[0073] In some embodiments, the handle 90 is a fixed handle, and the handle 90 includes a first connecting plate and a first hand-holding part.

[0074] One end of each of the two first connecting portions is fixedly connected to a first side outer wall of the shell 10, and the first hand holding portion is fixedly connected to the other end of the two first connecting portions.

[0075] The first connecting portions can be connecting rods, the right ends of the two connecting rods are fixedly connected to the left side of the shell 10, and the first hand holding portion is a handle fixedly connected to the left ends of the two connecting rods, thereby forming 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 hand holding portion.

[0077] One end of each of the two second connecting portions is rotatably connected to a first side outer wall of the shell 10, and the second hand holding portion is fixedly connected to the other end of the two second connecting portions.

[0078] The second connecting portions can be rod bodies, the right ends of the two rod bodies are rotatably connected to the left side of the shell 10, and the second hand holding portion can be a handle fixedly connected to the left ends of the two rod bodies, thereby enabling the handle 90 to swing up and down relative to the shell 10, thereby reducing the occupied space.

[0079] At present, most door body opening and closing handles are hidden handles, that is, a part of the door body is recessed on the side surface to open and close the door, resulting in an irregular shape of the door body.

[0080] The ultra-thin heat insulation door body provided in the application cancels the hidden handle part of the door body, sets the door body handle at the edge of the front surface of the door body, adopts an outer handle, and adopts a buckle opening or welding method for fixing the outer handle. The material of the door body shell is metal, and the material of the handle is metal or plastic.

[0081] After the above technical difficulties are improved, the door body vacuum heat insulation plate can be designed to have a flat and regular shape. Meanwhile, by virtue of the excellent heat preservation performance of the vacuum heat insulation plate, the door body only uses the vacuum heat insulation plate as a heat preservation material, so that the thickness of the door body can be greatly reduced. The total thickness of the refrigeration door body is 15-30 mm, and the total thickness of the freezing door body is 20-40 mm.

[0082] The thermal conductivity of the vacuum heat insulation plate is 2.0 mW / (m.k), and the thermal conductivity of the polyurethane is 20.0 mW / (m.k). Therefore, the total thickness of the refrigeration door body using the polyurethane heat preservation material is reduced from 35-55 mm to 15-30 mm, and the total thickness of the freezing door body using the polyurethane heat preservation material is reduced from 45-75 mm to 20-40 mm. The heat preservation performance of the door body is not reduced, and the performance of the refrigerator is not affected.

[0083] As shown in Figure 5 The application further provides a refrigerator, which comprises a cabinet 1 and the above-mentioned ultra-thin heat insulation door body 2.

[0084] The ultra-thin heat-insulating door body 2 is movably connected with the box body 1.

[0085] In some embodiments, the ultra-thin heat-insulating door body 2 is connected with the box body 1 through a plurality of rotating shafts 80, and the rotating shafts 80 are uniformly distributed.

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

[0087] When the ultra-thin heat-insulating door body 2 is closed, the sealing plane 63 of the door body sealing strip 60 is in close contact with the outer wall of the open end of the box body 1, so as to seal the connection between the ultra-thin heat-insulating door body 2 and the box body 1.

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

[0089] The above specific embodiments further detail the purposes, technical solutions and beneficial effects of the embodiments of the present application. It should be understood that the above is only a specific embodiment of the present application, and is not used to limit the protection scope of the embodiments of the present application. Any modification, equivalent replacement, improvement, 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 ultrathin insulating body, characterized in that: include; The outer shell (10) has a cavity inside, and the outer shell (10) has a first end and a second end opposite to each other. The middle part of the second end of the outer shell (10) is provided with a through groove that communicates with the cavity. The door insert (20) is disposed inside the outer shell (10). The outer end of the door insert (20) is fixedly connected to the inner wall of the outer shell (10). One side of the outer wall of the door insert (20) forms a square cavity (30) with the first side inner wall of the outer shell (10). The outer side of the other side of the outer wall of the door insert (20) forms a U-shaped slot (40) with the second side inner wall of the outer shell (10). The plane of the U-shaped slot (40) is perpendicular to the thickness direction of the door. A vacuum insulation panel (50) is disposed inside the square cavity (30), and the outer wall of the vacuum insulation panel (50) is in contact with the inner wall of the outer shell (10) and the outer wall of the door liner (20); A door sealing strip (60) is connected to the outer shell (10) and the door shell (20). The door sealing strip (60) includes a back-shaped sealing part (61) and a back-shaped insertion part (62) that match the back-shaped slot (40). The outer end of the back-shaped insertion part (62) is inserted into the back-shaped slot (40). One end of the back-shaped sealing part (61) is connected to the inner end of the back-shaped insertion part (62). The other end of the back-shaped sealing part (61) extends through the through groove to the side away from the door shell (20). The other end of the back-shaped sealing part (61) is provided with a sealing plane (63). The outer side wall of the back-shaped sealing part (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 frame (20) is provided with a buckle (70), which is used to fix the bottle frame; The buckle (70) is provided in multiple ways, and the multiple buckles (70) are evenly distributed.

3. The ultra-thin insulating body according to claim 1, characterized in that: The outer side wall of the outer casing (10) is provided with a pivot (80). The rotating shaft (80) is riveted or welded to the outer casing (10).

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

5. The ultra-thin insulating body according to claim 4, characterized in that: The handle (90) includes a first connecting part and a first hand-held part; One end of each of the two first connecting parts is fixedly connected to the first side outer wall of the outer shell (10), and the first handheld part is fixedly connected to the other end of the two first connecting parts.

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

7. The ultra-thin insulating body according to claim 4, characterized in that: The outer shell (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: Includes a housing (1) and an ultrathin insulating body (2) as described in any one of claims 1-7; The ultra-thin insulated body (2) is movably connected to the box body (1).

9. The refrigerator according to claim 8, characterized in that: The ultra-thin insulated body (2) is connected to the box body (1) by multiple rotating shafts (80), and the multiple 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 (1).

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

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