Reversible beam and double door refrigerator

Abstract

The application relates to a turnover beam and a double-door refrigerator, the turnover beam comprising a front cover, a middle cover and a rear cover, the middle cover being arranged between the front cover and the rear cover and being connected and sealed with the front cover and the rear cover respectively; and along the thickness direction of the turnover beam, a first vacuum layer is enclosed between the front cover and the middle cover, and a second vacuum layer is enclosed between the middle cover and the rear cover. The turnover beam can be heat-insulated by the first vacuum layer and the second vacuum layer, so that the turnover beam of the application adopts double-layer vacuum layers for heat insulation, so that the turnover beam has good heat-insulating and protecting performance, so that the loss of cold energy of the turnover beam applied to the double-door refrigerator can be reduced, and the risk of condensation during use of the turnover beam can be reduced.

Description

Technical Field

[0001] This utility model belongs to the technical field of double-door refrigerators, and in particular relates to a flip beam and a double-door refrigerator. Background Technology

[0002] A flip beam is typically installed on one side of a double-door refrigerator door. It is used to flip the double-door refrigerator door to seal the refrigerator body when it is closed.

[0003] Currently, most double-door refrigerators use an air layer as the insulation medium for their flip-up beams. However, due to the high thermal conductivity of air and the limited thickness of the air layer, the overall insulation performance of the flip-up beam is insufficient, making it difficult to effectively block the exchange of heat between the inside and outside. This not only increases the energy consumption of the double-door refrigerator but may also cause condensation to form on the surface of the flip-up beam due to temperature conduction, affecting the user experience. Utility Model Content

[0004] In view of this, it is necessary to provide a flip beam and a double-door refrigerator to solve the above-mentioned technical problems.

[0005] A flip beam includes a front cover, a middle cover, and a rear cover, wherein the middle cover is disposed between the front cover and the rear cover, and is connected and sealed to the front cover and the rear cover respectively;

[0006] Along the thickness direction of the flip beam, a first vacuum partition is formed between the front cover and the middle cover, and a second vacuum partition is formed between the middle cover and the rear cover.

[0007] Understandably, the use of a double-layer vacuum insulation layer gives the flip beam excellent thermal insulation performance. This not only reduces the loss of cold air when the flip beam is used in a double-door refrigerator, but also reduces the risk of condensation when the flip beam is in use.

[0008] In one embodiment, a first support rib is provided on one end face of the middle cover, the first support rib is housed in the first vacuum partition, and the first support rib abuts against and limits the front cover.

[0009] A second support rib is provided on the other end face of the middle cover. The second support rib is housed in the second vacuum partition and abuts against and limits the rear cover.

[0010] Understandably, by setting support ribs in the two vacuum compartments between the middle cover and the front cover, and between the middle cover and the rear cover of the flip beam, these support ribs not only provide a stable internal support structure for the vacuum compartments, but also significantly improve the overall connection strength between the middle cover and the front cover and the rear cover. This effectively enhances the overall structural strength of the flip beam, enabling it to maintain excellent deformation resistance and durability during long-term use.

[0011] In one embodiment, the middle cover is provided with a vent hole, which is connected to the first vacuum layer and the second vacuum layer respectively, and the vent hole can simultaneously draw air from the first vacuum layer and the second vacuum layer;

[0012] The flip beam also includes a sealing plug, which is installed at the location of the vent hole to block the vent hole.

[0013] It is understandable that using a single vent to simultaneously evacuate both vacuum chambers, and then sealing the vent with a plug after the evacuation process is complete, not only simplifies the manufacturing process of the flip beam with dual vacuum chambers and reduces production costs, but also ensures that both vacuum chambers achieve the same vacuum level.

[0014] In one embodiment, a cavity is formed between the sealing plug and the middle cover, and the cavity is filled with sealant; and the sealing plug and the sealant together are used to seal the vent.

[0015] It is understandable that sealant is used to assist the sealing plug in sealing the vent hole, so that the sealant can fill the microscopic gap between the sealing plug and the vent hole wall, thereby improving the long-term airtightness of the two vacuum layers. At the same time, after the sealant cures, it can generate a limiting force for the sealing plug, preventing the sealing plug from shifting or loosening during the use of the flip beam.

[0016] In one embodiment, a first gap is formed between the front cover and the middle cover, the first gap is disposed on the periphery of the first vacuum layer, and the first gap is filled with a first sealant.

[0017] And / or, a second gap is formed between the middle cover and the rear cover, the second gap is disposed on the periphery of the second vacuum layer, and the second gap is filled with a second sealant.

[0018] Understandably, using sealant to fill the gap between the middle cover and the front / rear cover achieves structural bonding while cleverly utilizing the sealing properties of the sealant to directly form two independent vacuum layers. This integrated design not only simplifies the assembly process of the middle cover and the front / rear cover, eliminating the need for an additional vacuum layer sealing process, but also ensures the airtightness of the vacuum layer and enhances the overall integrity of the flip beam structure through the curing and molding of the sealant.

[0019] In one embodiment, a recessed cavity is formed on the front cover, the recessed cavity being annular and communicating with the first vacuum partition.

[0020] In the thickness direction of the flipping beam, the projection of the outer peripheral wall of the sinking cavity toward the middle cover can cover the chamber peripheral wall of the first vacuum partition.

[0021] Understandably, by using the recessed cavity of the front cover to wrap around the front cover, the flip beam can construct a surrounding heat insulation barrier by utilizing the low thermal conductivity of the vacuum insulation layer without adding extra materials. This forms a composite heat insulation with the original first vacuum insulation layer, which can further improve the thermal insulation performance of the flip beam.

[0022] In one embodiment, the front cover and the middle cover cooperate to form a first concave-convex fit structure, and the first concave-convex fit structure is disposed on the periphery of the first vacuum partition.

[0023] And / or, the rear cover and the middle cover cooperate to form a second concave-convex fit structure, the second concave-convex fit structure being disposed on the periphery of the second vacuum partition.

[0024] It is understandable that by assembling the middle cover with the front / rear cover using a concave-convex fit, the assembly accuracy between the middle cover and the front / rear cover can be optimized. Furthermore, the concave-convex fit structure can disperse stress and suppress deformation, thereby improving the overall structural strength of the flip beam.

[0025] In one embodiment, the front cover, the middle cover, and the rear cover are combined to form a flip beam body;

[0026] The flip beam also includes an outer cover, which is made of plastic and is fitted onto the main body of the flip beam from the front cover toward the rear cover.

[0027] Understandably, using plastic outer covers to fit the front, middle, and rear covers not only gives the tilting beam a smooth, integrated appearance, enhancing its aesthetics, but also utilizes the low thermal conductivity of the plastic outer covers to prevent the cold air from the refrigerator from being conducted to the tilting beam, further reducing the risk of condensation.

[0028] In one embodiment, the flip beam further includes a heating wire disposed on the front cover on the side opposite to the middle cover, and the heating wire is covered and limited to the front cover by the outer cover.

[0029] It is understandable that heating the outer cover with an electric heating wire can further reduce the risk of condensation when the flip beam is used in a double-door refrigerator.

[0030] This application also claims protection for a double-door refrigerator, including the aforementioned flip-up beam.

[0031] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:

[0032] The flip beam and double-door refrigerator claimed in this application use a double-layer vacuum insulation layer for heat insulation, which gives the flip beam good heat insulation performance. This not only reduces the loss of cold air when the flip beam is used in a double-door refrigerator, but also reduces the risk of condensation when the flip beam is used. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 This is a partial exploded view of the overturning beam provided in this application.

[0035] Figure 2 This is a cross-sectional view of the overturning beam provided in this application.

[0036] Figure 3 A partial sectional view of the flip beam provided in this application from another perspective.

[0037] Figure 4 This is a partial structural diagram of the front cover of this application.

[0038] Figure 5 This is a partial structural diagram of the cover in this application.

[0039] Figure 6 This is a structural schematic diagram of the cover from another perspective in this application.

[0040] Figure 7 This is a schematic diagram of the structure of the back cover of this application.

[0041] Reference numerals: 100, Tilting beam; 110, Tilting beam body; 10, Front cover; 11, Sinking cavity; 111, Outer peripheral wall; 12, Third support rib; 13, First step; 14, Front cover groove; 20, Middle cover; 201, Cavity; 21, First support rib; 22, Second support rib; 23, Vent hole; 231, Hole wall; 24, Sealing plug; 25, First recessed cavity; 26, Second recessed cavity; 30, Rear cover; 31, Second step; 40, Outer cover; 50, Heating wire; 60, Magnetic strip; 101, First vacuum partition; 1011, Chamber peripheral wall; 102, Second vacuum partition; 103, First gap; 104, Second gap. Detailed Implementation

[0042] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. 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.

[0043] It should be noted that when a component is said to be "located on" another component, it can be directly located on the other component or may have an intervening component. When a component is considered to be "located on" another component, it can be directly located on the other component or may have an intervening component. When a component is considered to be "fixed to" another component, it can be directly fixed to the other component or may have an intervening component.

[0044] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0045] like Figures 1 to 3As shown, the flip beam 100 provided in this application includes a front cover 10, a middle cover 20, and a rear cover 30. The middle cover 20 is disposed between the front cover 10 and the rear cover 30, and is connected and sealed to both the front cover 10 and the rear cover 30. Furthermore, along the thickness direction X of the flip beam 100, a first vacuum layer 101 is formed between the front cover 10 and the middle cover 20, and a second vacuum layer 102 is formed between the middle cover 20 and the rear cover 30. Here, when the flip beam 100 is applied to a double-door refrigerator, the front cover 10 is the cover facing the refrigerator compartment when the flip beam 100 abuts against the refrigerator compartment. The flip beam 100 can achieve thermal insulation through the first vacuum layer 101 and the second vacuum layer 102. It should be noted that the aforementioned first vacuum layer 101 and second vacuum layer 102 specifically refer to rarefied spaces with gas pressure lower than standard atmospheric pressure.

[0046] As can be seen from the above, the flip beam 100 of this application adopts a double-layer vacuum insulation layer for heat insulation, which makes the flip beam 100 have good protective heat insulation performance. This not only reduces the loss of cold air when the flip beam 100 is applied to a double-door refrigerator (not shown), but also reduces the risk of condensation when the flip beam 100 is used.

[0047] like Figures 2 to 4 As shown, in one embodiment, a recessed cavity 11 is formed on the front cover 10. The recessed cavity 11 is annular and communicates with the first vacuum partition 101, making the recessed cavity 11 also a vacuum partition. Furthermore, in the thickness direction X of the flip beam 100, the projection of the outer peripheral wall 111 of the recessed cavity 11 toward the middle cover 20 can cover the chamber peripheral wall 1011 of the first vacuum partition 101. In other words, in this embodiment, the front cover 10 uses the recessed cavity 11 to wrap around the front cover 10 for heat insulation. This allows the flip beam 100 to construct a surrounding heat insulation barrier using the low thermal conductivity of the vacuum partition without adding additional materials, forming a composite heat insulation with the original first vacuum partition 101. This further improves the thermal insulation performance of the flip beam 100.

[0048] like Figure 2 , Figure 4 As shown, in this embodiment, the front cover 10 is provided with a third support rib 12 in the area where the sunken cavity 11 is located, and the third support rib 12 can abut and limit the middle cover 20, so that the third support rib 12 can provide a stable internal support structure for the sunken cavity 11, thereby improving the structural strength of the front cover 10 when the part where the sunken cavity 11 is located is assembled with the middle cover 20.

[0049] like Figure 2 , Figure 5 and Figure 6As shown, in one embodiment, a first supporting rib 21 is provided on one end face of the middle cover 20. The first supporting rib 21 is housed within the first vacuum partition 101 and abuts against and limits the front cover 10. A second supporting rib 22 is provided on the other end face of the middle cover 20. The second supporting rib 22 is housed within the second vacuum partition 102 and abuts against and limits the rear cover 30. In other words, supporting ribs are provided in the two vacuum partitions between the middle cover 20 and the front cover 10, and between the middle cover 20 and the rear cover 30 of the flip beam 100 in this embodiment. These supporting ribs not only provide a stable internal support structure for the corresponding vacuum partitions, but also significantly improve the overall connection strength between the middle cover 20 and the front cover 10 and the rear cover 30, thereby effectively enhancing the overall structural strength of the flip beam 100 and enabling the flip beam 100 to maintain excellent deformation resistance and durability during long-term use.

[0050] like Figure 5 , Figure 6 As shown, in this embodiment, both the first supporting rib 21 and the second supporting rib 22 are honeycomb-shaped, specifically composed of multiple quadrilateral and hexagonal honeycombs. Adjacent hexagonal honeycombs and adjacent hexagonal honeycombs with quadrilateral honeycomb cells are interconnected, forming airflow channels to facilitate subsequent evacuation of the first vacuum layer 101 and the second vacuum layer 102. Here, the aforementioned quadrilateral honeycomb is a combination of four reinforcing ribs forming a quadrilateral shape, and the hexagonal honeycomb is a combination of six reinforcing ribs forming a hexagonal shape. It is understood that the shape of the reinforcing ribs in the first supporting rib 21 and the second supporting rib 22 can also include pentagons, triangles, or other irregular shapes, which will not be elaborated upon here.

[0051] like Figure 3 , Figure 5 , Figure 6As shown, in this embodiment, the middle cover 20 has a vent 23, which communicates with the first vacuum layer 101 and the second vacuum layer 102. The vent 23 can draw air from the first vacuum layer 101 and the second vacuum layer 102 to create a vacuum state in both vacuum layers. Furthermore, the flip beam 100 also includes a sealing plug 24, which is installed at the location of the vent 23 to seal it. In other words, during the manufacturing of the flip beam 100 in this embodiment, a single vent 23 can be used to simultaneously evacuate the two vacuum layers. After the evacuation process is completed, the sealing plug 24 is used to seal the vent 23 once, thus forming the first vacuum layer 101 and the second vacuum layer 102. This not only simplifies the manufacturing process of the flip beam 100 with dual vacuum layers and reduces production costs, but also ensures that both vacuum layers achieve the same vacuum level.

[0052] like Figure 3 As shown, a cavity 201 is formed between the sealing plug 24 and the middle cover 20, and the cavity 201 is filled with sealant (not shown in the figure); and the sealing plug 24 and the sealant are used together to seal the vent 23. That is to say, the flip beam 100 can use the sealant to assist the sealing plug 24 in sealing the vent 23, so that the sealant can fill the micro gap between the sealing plug 24 and the vent wall 231 of the vent 23, thereby improving the long-term airtightness of the two vacuum layers. At the same time, after the sealant cures, it can generate a limiting force for the sealing plug 24, preventing the sealing plug 24 from shifting or loosening during the use of the flip beam 100.

[0053] like Figure 2 , Figure 3As shown, in one embodiment, a first gap 103 is formed between the front cover 10 and the middle cover 20. The first gap 103 is located on the periphery of the first vacuum layer 101, that is, the first gap 103 is annular, and the first gap 103 is filled with a first sealant (not shown); and / or, a second gap 104 is formed between the middle cover 20 and the rear cover 30. The second gap 104 is located on the periphery of the second vacuum layer 102, that is, the second gap 104 is also annular, and the second gap 104 is filled with a second sealant (not shown). In other words, this embodiment uses sealant to fill the gap between the middle cover 20 and the front cover 10 / rear cover 30, achieving structural bonding while cleverly utilizing the sealing properties of the sealant to directly form two independent vacuum layers. This integrated design not only simplifies the assembly process of the middle cover 20 with the front cover 10 / rear cover 30, eliminating the need for an additional vacuum layer sealing process, but also ensures the airtightness of the vacuum layer and enhances the overall integrity of the flip beam 100 structure through the curing and molding of the sealant. Here, the middle cover 20 is connected to the front cover 10 and the rear cover 30 with sealant.

[0054] It should be noted that the first gap 103 mentioned above specifically refers to the gap left between the front cover 10 and the middle cover 20 during assembly, and the second gap 104 mentioned above specifically refers to the gap left between the middle cover 20 and the rear cover 30 during assembly. Figure 3 As shown, in this embodiment, the cross-section of one side of the first slit 103 is L-shaped, and the cross-section of one side of the second slit 104 is Z-shaped. It is understood that in other embodiments, the cross-section of one side of the first slit 103 may also be Z-shaped, and the cross-section of one side of the second slit 104 may also be L-shaped, or other irregular arbitrary shapes, which will not be elaborated here.

[0055] In one embodiment, the front cover 10 and the middle cover 20 cooperate to form a first concave-convex fit structure, which is disposed on the periphery of the first vacuum partition 101. That is, the front cover 10 and the middle cover 20 are assembled on the periphery of the first vacuum partition 101 in a concave-convex fit manner; and / or, the rear cover 30 and the middle cover 20 cooperate to form a second concave-convex fit structure, which is disposed on the periphery of the second vacuum partition 102. In other words, in this embodiment, the front cover 10, the middle cover 20, and the rear cover 30 all have convex or concave reinforcing rib structures formed on the periphery of their respective vacuum partitions, which can improve the bending resistance of the front cover 10, the middle cover 20, and the rear cover 30, thereby improving the overall structural strength of the flip beam 100. Here, the aforementioned concave-convex fit structure specifically refers to the concave-convex fit between the convex structure and the concave structure, and the convex structure and the concave structure do not completely abut against each other.

[0056] like Figure 2, Figure 4 , Figure 5 , Figure 7 As shown, in this embodiment, the front cover 10 protrudes from the outer periphery of the recessed cavity 11 and forms a first step 13. Correspondingly, the middle cover 20 is partially recessed and forms a first cavity 25. The first step 13 extends into the first cavity 25 to form the aforementioned first gap 103. The rear cover 30 protrudes from the outer periphery of the second vacuum partition 102 and forms a second step 31. Correspondingly, the middle cover 20 is partially recessed and forms a second cavity 26. The second step 31 extends into the second cavity 26 to form the aforementioned second gap 104.

[0057] like Figures 1 to 3 As shown, in one embodiment, the front cover 10, the middle cover 20, and the rear cover 30 are combined to form the main body 110 of the flip beam. The flip beam 100 also includes an outer cover 40, which is made of plastic and is fitted onto the main body 110 from the front cover 10 toward the rear cover 30. In other words, the outer cover 40 in this embodiment gives the flip beam 100 a smooth, integrated appearance, improving its aesthetics. Furthermore, the low thermal conductivity of the plastic outer cover 40 helps to prevent the cold air from the refrigerator compartment from being conducted to the flip beam 100, further reducing the risk of condensation. Here, the outer cover 40 is tightly fitted to the main body 110 of the flip beam, and the front cover 10, middle cover 20, and rear cover 30 are all made of plastic.

[0058] like Figure 1 , Figure 2 As shown, in one embodiment, the flip beam 100 further includes a heating wire 50, which is disposed on the side of the front cover 10 opposite to the middle cover 20, and is closed and limited to the front cover 10 by the outer cover 40. That is, in this embodiment, the flip beam 100 can be heated by energizing the heating wire 50 to achieve dynamic temperature stability at its contact point with the outer cover 40, thus further reducing the risk of condensation when the flip beam 100 is used in a double-door refrigerator. Here, the heating wire 50 is installed in the front cover groove 14 of the front cover 10, specifically at the middle position of the front cover 10 in the width direction of the flip beam 100.

[0059] like Figure 2 As shown, in one embodiment, the flip beam 100 further includes a magnetic strip 60, which is installed in the front cover groove 14 of the front cover 10, and the magnetic strip 60 is built-in, so that the flip beam 100 can attract the door seal of the refrigerator body through the magnetic strip 60.

[0060] In addition, this application also provides protection for a double-door refrigerator, including the aforementioned flip beam 100.

[0061] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0062] Those skilled in the art should recognize that the above embodiments are only used to illustrate the present utility model and are not intended to limit the present utility model. Any appropriate changes and variations made to the above embodiments within the scope of the essential spirit of the present utility model shall fall within the scope of protection claimed by the present utility model.

Claims

1. A flip beam, characterized in that, The flip beam (100) includes a front cover (10), a middle cover (20) and a rear cover (30). The middle cover (20) is disposed between the front cover (10) and the rear cover (30) and is connected and sealed to the front cover (10) and the rear cover (30) respectively. Along the thickness direction of the flip beam (100), the front cover (10) and the middle cover (20) form a first vacuum partition (101), and the middle cover (20) and the rear cover (30) form a second vacuum partition (102).

2. The flipping beam according to claim 1, characterized in that, A first support rib (21) is provided on one end face of the middle cover (20). The first support rib (21) is housed in the first vacuum partition (101), and the first support rib (21) abuts against and limits the front cover (10). A second support rib (22) is provided on the other end face of the middle cover (20). The second support rib (22) is housed in the second vacuum partition (102), and the second support rib (22) abuts against and limits the rear cover (30).

3. The flipping beam according to claim 2, characterized in that, The middle cover (20) is provided with a vent (23), which is connected to the first vacuum layer (101) and the second vacuum layer (102) respectively, and the vent (23) can simultaneously draw air from the first vacuum layer (101) and the second vacuum layer (102); The flip beam (100) also includes a sealing plug (24), which is installed at the location of the vent (23) to block the vent (23).

4. The flipping beam according to claim 3, characterized in that, A cavity (201) is formed between the sealing plug (24) and the middle cover (20), and the cavity (201) is filled with sealant; and the sealing plug (24) and the sealant are used together to seal the vent (23).

5. The flipping beam according to claim 1, characterized in that, The front cover (10) and the middle cover (20) form a first gap (103), the first gap (103) is located on the periphery of the first vacuum layer (101), and the first gap (103) is filled with a first sealant. And / or, the middle cover (20) and the rear cover (30) form a second gap (104), the second gap (104) is disposed on the periphery of the second vacuum layer (102), and the second gap (104) is filled with a second sealant.

6. The flipping beam according to claim 1, characterized in that, A recessed cavity (11) is formed on the front cover (10), the recessed cavity (11) is annular and communicates with the first vacuum partition (101); In the thickness direction of the flip beam (100), the projection of the outer peripheral wall (111) of the sunken cavity (11) toward the middle cover (20) can cover the chamber peripheral wall (1011) of the first vacuum partition (101).

7. The flipping beam according to claim 1, characterized in that, The front cover (10) and the middle cover (20) cooperate to form a first concave-convex fit structure, and the first concave-convex fit structure is disposed on the periphery of the first vacuum partition (101); And / or, the rear cover (30) and the middle cover (20) cooperate to form a second concave-convex fit structure, the second concave-convex fit structure being disposed on the periphery of the second vacuum partition (102).

8. The flipping beam according to claim 1, characterized in that, The front cover (10), the middle cover (20) and the rear cover (30) are combined to form the main body of the flip beam (110). The flip beam (100) also includes an outer cover (40), which is configured as a plastic part and is fitted onto the flip beam body (110) from the front cover (10) toward the rear cover (30).

9. The flipping beam according to claim 8, characterized in that, The flip beam (100) also includes a heating wire (50), which is disposed on the front cover (10) on the side opposite to the middle cover (20), and the heating wire (50) is covered and limited to the front cover (10) by the outer cover (40).

10. A double-door refrigerator, characterized in that, The flip beam (100) includes any one of claims 1 to 9.

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