Door body structure of refrigerator and refrigerator

Abstract

The utility model relates to the technical field of refrigerators, in particular to a door body structure of a refrigerator and the refrigerator. The door body structure of the refrigerator comprises an inner plate, an outer plate, a surrounding plate and a ventilation structure, the surrounding plate is arranged between the inner plate and the outer plate so that a cavity can be defined by the inner plate, the outer plate and the surrounding plate, ventilation holes are formed in the surrounding plate and communicate with the cavity and the exterior of the cavity, the ventilation structure comprises a barrel and a cover, the barrel is arranged in the cavity and fixed to the surrounding plate, and the cover is arranged in the barrel. The cylinder body is annularly arranged on the outer side of the air hole and communicated with the air hole, the cover body covers the cylinder body, and a gap is formed between the cover body and the cylinder body, so that the cavity is communicated with the outside of the cavity through the gap and the air hole. And through the arrangement of the ventilation structure, the foaming material in the cavity can be prevented from overflowing while ventilation of the cavity is ensured.

Description

Technical Field

[0001] This application relates to the field of refrigerator technology, specifically providing a refrigerator door structure and a refrigerator. Background Technology

[0002] Most refrigerators currently use foamed door panels to isolate heat exchange between the refrigerator's interior and exterior. During the foaming process, ventilation holes are needed to drain the air from the door's interior cavity. To achieve a seal and prevent spillage, breathable tape is usually applied to these ventilation holes. However, even with the breathable tape applied during mass production, stringy spillage can still occur. Cleaning this spillage can easily scratch the exterior of the refrigerator. Summary of the Invention

[0003] This application aims to solve the aforementioned technical problem, namely, to resolve the issue of material overflow still occurring after the venting holes of the refrigerator door are covered with venting tape in the prior art.

[0004] This application provides a refrigerator door structure, including: an inner panel; an outer panel; and a surrounding panel disposed between the inner panel and the outer panel to enclose a cavity. The surrounding panel has ventilation holes that connect the cavity to the outside of the cavity. A ventilation structure includes a cylindrical body and a cover. The cylindrical body is disposed within the cavity and fixed to the surrounding panel. The cylindrical body is arranged around the outside of the ventilation holes and communicates with them. The cover is placed over the cylindrical body, and a gap is provided between the cover and the cylindrical body to allow communication between the cavity and the outside of the cavity.

[0005] In the optional technical solutions of the refrigerator door structure mentioned above, the inner diameter of the cover is larger than the outer diameter of the cylinder, the end of the cylinder away from the surrounding plate is stepped, the end of the cylinder away from the surrounding plate includes a first step surface and a second step surface, the first step surface and the second step surface are not on the same plane, and the end of the cover near the surrounding plate is not in contact with the surrounding plate.

[0006] In the optional technical solutions of the refrigerator door structure mentioned above, the inner diameter of the cover is larger than the outer diameter of the cylinder, the end of the cylinder away from the surrounding plate is provided with a notch or protrusion, and the end of the cover near the surrounding plate is not in contact with the surrounding plate.

[0007] In the optional technical solution of the refrigerator door structure mentioned above, the cover and the cylinder are screwed together. The cover includes multiple internal threads, and the cylinder includes multiple external threads. The multiple internal threads and the multiple external threads are connected in a mating manner. An outer channel is formed between two adjacent external threads, and an inner channel is formed between two adjacent internal threads. The depth of the outer channel is greater than the depth of the inner channel.

[0008] In the optional technical solutions of the refrigerator door structure described above, when the cover is placed on the cylinder, at least a portion of at least one of the outer channels is not covered by the cover.

[0009] In the optional technical solutions of the refrigerator door structure described above, the distance between the cover and the surrounding panel is greater than the width of the outer passage.

[0010] In the optional technical solutions of the refrigerator door structure described above, at least one side of the enclosure is provided with a plurality of ventilation structures, and all the ventilation structures on the same side are equidistantly arranged along the length direction of the enclosure.

[0011] In the optional technical solutions for the door structure of the refrigerator described above, each of the ventilation structures corresponds to a plurality of ventilation holes; and / or,

[0012] The enclosure panel and the outer panel are integrally formed.

[0013] In the optional technical solutions of the refrigerator door structure mentioned above, the vent hole is shaped like a frustum, and the diameter of the vent hole gradually decreases from the direction close to the cavity to the direction away from the cavity.

[0014] This application also provides a refrigerator, including the door structure of the refrigerator described in any of the above technical solutions.

[0015] By adopting the above technical solution, this application can ensure air permeability of the cavity while preventing the foaming material inside the cavity from overflowing through the setting of the air-permeable structure. Attached Figure Description

[0016] The preferred embodiments of this application are described below with reference to the accompanying drawings, in which:

[0017] Figure 1 This is a schematic diagram of the refrigerator door structure of this application;

[0018] Figure 2 yes Figure 1 A simplified sectional view of the refrigerator door structure;

[0019] Figure 3 This is a split schematic diagram of the ventilation structure of the door structure in this application;

[0020] Figure 4 This is a schematic diagram of the door structure of this application without an inner panel;

[0021] Figure 5 yes Figure 4 Enlarged view of the column at point A;

[0022] Figure 6 yes Figure 5 Top view;

[0023] Figure 7 This is a schematic diagram showing the arrangement of the ventilation structure of the door structure in this application;

[0024] Figure 8 yes Figure 7 Sectional view of BB;

[0025] Figure 9 yes Figure 8 Enlarged view of point C in the middle.

[0026] List of reference numerals in the attached diagram:

[0027] 1. Door structure; 11. Outer panel; 12. Enclosure panel; 121. Vent hole; M1. Diameter of the end of the vent hole near the cavity; M2. Diameter of the end of the vent hole away from the cavity; 13. Ventilation structure; 131. Cylinder body;

[0028] D1, Outer diameter of the cylinder; 1311, First step surface; 1312, Second step surface; 131a, End of the cylinder away from the surrounding plate; 1313, External thread; 1314, External channel; L1, Depth of the external channel; H1, Width of the external channel; 132, Cover; D2, Inner diameter of the cover; 1321, Internal thread; 1322, Internal channel; L2, Depth of the internal channel; 133, Gap; R1, Distance between the cover and the surrounding plate; T1, Distance between two adjacent ventilated structures; 14, Inner plate; 15, Cavity. Detailed Implementation

[0029] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. In the following description relating to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The terms “first,” “second,” and similar terms used in this specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms “a” or “one,” and similar terms, do not indicate a quantity limitation, but rather indicate the presence of at least one. “A plurality” indicates two or more.

[0030] Unless otherwise stated, the orientation or positional relationship indicated by “length”, “width”, “thickness”, “inner”, “outer”, and “circumferential” is based on the orientation or positional relationship shown in the accompanying drawings and is only for the purpose of facilitating the description of this application and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0031] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intervening element. Furthermore, "connection" should be interpreted broadly; for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two elements. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0032] like Figure 1 As shown, this application provides a refrigerator door structure 1, as follows: Figure 2 As shown, the door structure 1 includes an inner panel 14, an outer panel 11, a surrounding panel 12, and a ventilation structure 13. The surrounding panel 12 is disposed between the inner panel 14 and the outer panel 11, so that the inner panel 14, the outer panel 11, and the surrounding panel 12 enclose a cavity 15. A ventilation hole 121 is provided on the surrounding panel 12, which connects the cavity 15 to the outside of the cavity 15. Figure 3 As shown, the ventilated structure 13 includes a cylinder 131 and a cover 132. The cylinder 131 is disposed inside the cavity 15 and fixed to the surrounding plate 12. The cylinder 131 is arranged around the outside of the vent hole 121 and communicates with the vent hole 121. The cover 132 is placed on the cylinder 131. A gap is provided between the cover 132 and the cylinder 131 so that the cavity 15 communicates with the outside of the cavity 15 through the gap and the vent hole 121, thereby ensuring that the gas inside the cavity 15 is discharged.

[0033] During the foaming process, the foaming material inside the cavity 15 of the door structure 1 will release gas from the cavity 15. At this time, it is necessary for the cavity 15 to communicate with the outside. Therefore, a vent hole 121 is provided on the enclosure 12 to achieve this communication. To prevent the foaming material from overflowing from the vent hole 121, a venting structure 13 is provided at the corresponding position of the vent hole 121. The cylinder 131 of the venting structure 13 is connected to the vent hole 121. Since a cover 132 is provided on the cylinder 131, the foaming material will not directly enter the cylinder 131. There is a gap between the two. At this time, the air in the cavity 15 can enter the cylinder 131 through the gap and then be discharged from the vent 121. When the foaming material flows during the foaming process, most of the foaming material is blocked by the outer wall of the cover 132 and the cylinder 131. A small part passes through the gap and enters the cylinder 131 during the flow and stops flowing in the cylinder 131, thereby preventing the foaming material from overflowing and ensuring the external cleanliness of the door structure 1. Since there is no need to apply tape at the vent 121, the procedure of applying breathable tape is reduced, the work efficiency is improved, and the aesthetics of the door structure 1 are guaranteed.

[0034] In one embodiment, combined with Figure 3 , Figure 4 , Figure 5 The inner diameter D2 of the cover 132 is larger than the outer diameter D1 of the cylinder 131. This ensures that there is a gap between the side wall of the cylinder 131 and the side wall of the cover 132. Since the end 131a of the cylinder 131 furthest from the surrounding plate 12 is stepped, such as... Figure 5 As shown, the end 131a of the cylinder 131 away from the surrounding plate 12 includes a first stepped surface 1311 and a second stepped surface 1312. The first stepped surface 1311 and the second stepped surface 1312 are not on the same plane. Therefore, when the cover 132 abuts against the end 131a of the cylinder 131 away from the surrounding plate 12, there will also be a gap between the second stepped surface 1312 and the cover 132. The cover 132 will not completely seal the cylinder 131. In addition, because the cover... The end of the cover 132 near the surrounding plate 12 is not in contact with the surrounding plate 12. In this case, the surrounding plate 12 does not seal the end of the cover 132 near the surrounding plate 12. Therefore, even if the cover 132 is placed on the cylinder 131, the cavity 15 can still communicate with the cylinder 131. At this time, air in the cavity 15 can enter the cylinder 131 through the gap between the cover 132 and the cylinder 131 and exit to the outside of the cavity 15 through the vent 121 communicating with the cylinder 131. This arrangement ensures that the cover 132 and the cylinder 131 work together to prevent most of the foaming material from entering the cylinder 131, thus reducing the possibility of foaming material overflowing the cavity 15, while also ensuring communication between the cavity 15 and the cylinder 131, thus ensuring that air in the cavity 15 can be discharged to the outside of the cavity 15.

[0035] It should be noted that, to prevent the cover 132 from completely sealing the cylinder 131, the end 131a of the cylinder 131 away from the surrounding plate 12 can be designated as a first stepped surface 1311 and a second stepped surface 1312. Alternatively, a notch or protrusion can be provided at the end 131a of the cylinder 131 away from the surrounding plate 12. In this case, the cover 132 will not completely seal the cylinder 131. Even when the inner diameter D2 of the cover 132 is larger than the outer diameter D1 of the cylinder 131, and the end of the cover 132 near the surrounding plate 12 is not in contact with the surrounding plate 12, the cylinder 131 can still maintain communication with the cavity 15. The above-mentioned arrangement of not completely sealing the cover 132 and the cylinder 131 is not restrictive and can be configured according to the needs of those skilled in the art. All of the above are within the protection scope of this application.

[0036] In one embodiment, combined with Figure 3 , Figure 7 , Figure 8 , Figure 9The cover 132 is screwed to the cylinder 131. The cover 132 includes multiple internal threads 1321, and the cylinder 131 includes multiple external threads 1313. The multiple internal threads 1321 and the multiple external threads 1313 are connected in a mating manner. An outer channel 1314 is formed between two adjacent external threads 1313, and an inner channel 1322 is formed between two adjacent internal threads 1321. The depth L1 of the outer channel 1314 is greater than the depth L2 of the inner channel 1322. The external thread 1313 mates with the internal thread 1321 to ensure the connection stability between the cover 132 and the cylinder 131. Furthermore, since the depth L1 of the outer channel 1314 is greater than that of the inner channel 1322, air within the cavity 15 can also flow along the outer channel 1314 of the cylinder 131. Because the outer channel 1314 is spiral-shaped and relatively long, when the foaming material within the cavity 15 flows along the outer channel 1314 along with the air, most of the foaming material flows along the spiral... When the material flows through the outer channel 1314, the flow speed gradually decreases due to friction with the outer channel 1314. Since the outer channel 1314 is relatively long, the material stops moving before it reaches the cylinder 131. At this time, the air will still move along the outer channel 1314 into the cylinder 131 and then be discharged from the vent 121. Therefore, the screw connection between the cylinder 131 and the cover 132 can reduce the possibility of the material overflowing from the door and ensure that the air in the cavity 15 can be smoothly discharged to the outside of the cavity 15.

[0037] It should be noted that the cover 132 and the cylinder 131 can be connected by screwing, or by snapping or other means. The above is not restrictive and can be set according to the needs of those skilled in the art. All of the above are within the protection scope of this application.

[0038] In one embodiment, such as Figure 7 As shown, at least one side of the enclosure 12 is provided with a plurality of ventilation structures 13, and all ventilation structures 13 located on the same side are equidistantly arranged along the length direction of the enclosure 12. Figure 7 The distance T1 between two adjacent breathable structures 13 is shown in the figure. Figure 7 (The x-direction is the length direction of the enclosure). Multiple ventilated structures 13 can improve the air exhaust efficiency of the cavity 15. In addition, equidistant arrangement of the ventilated structures 13 can ensure the orderly exhaust of air in the cavity 15, thereby further improving the air exhaust efficiency of the cavity 15.

[0039] In one embodiment, such as Figure 6 As shown, each ventilated structure 13 corresponds to multiple vent holes 121, which can not only ensure the efficiency of air discharge of each ventilated structure 13, but also improve the air discharge efficiency of the entire cavity 15, and avoid the situation where the air of the ventilated structure 13 cannot be discharged from the cavity 15, thus affecting the heat insulation function of the door structure 1.

[0040] In one embodiment, such as Figure 9 As shown, since the air in the cavity 15 needs to flow into the cylinder 131 through the outer channel 1314, the outer channel 1314 cannot be completely covered by the cover 132. Therefore, when the cover 132 is placed on the cylinder 131, at least a part of the outer channel 1314 is not covered by the cover 132, thereby ensuring that air can gradually flow into the cylinder 131 from the outer channel 1314 that is not covered by the cover 132.

[0041] In one embodiment, such as Figure 9 As shown, the distance R1 between the cover 132 and the surrounding plate 12 is greater than the width H1 of the outer channel 1314, which also ensures that the cover 132 will not completely cover the outer channel 1314.

[0042] In one embodiment, such as Figure 9 As shown, the vent 121 is frustum-shaped, and its diameter gradually decreases from near the cavity 15 to away from the cavity 15. During the foaming process of the door structure 1, the foaming material gradually fills the cavity 15, and air is discharged from the cavity 15. To ensure that the air in the cavity 15 can be discharged smoothly, the vent 121 is set in frustum shape. Furthermore, the diameter M1 of the vent 121 near the cavity 15 is larger than the diameter M2 of the vent 121 away from the cavity 15. At this time, the frustum-shaped vent 121 can guide the air and discharge it smoothly to the outside of the cavity 15. When foaming material enters the cylinder 131 and enters the vent 121, the frustum-shaped vent 121 can effectively block the foaming material, thereby further reducing the possibility of the foaming material overflowing to the outside of the cavity 15.

[0043] In one embodiment, the enclosure panel 12 and the outer panel 11 are integrally formed, which can reduce the assembly difficulty of the enclosure panel 12, the outer panel 11 and the inner panel 14, thereby improving the assembly efficiency of the door structure 1, and at the same time reducing the number of molds, thus saving costs.

[0044] In addition, this application also provides a refrigerator having the door structure 1 of the refrigerator described in any of the above embodiments.

[0045] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A refrigerator door structure, characterized in that, include: Inner panel; outer panel; A surrounding panel is disposed between the inner panel and the outer panel so that the inner panel, the outer panel and the surrounding panel enclose a cavity. The surrounding panel is provided with ventilation holes that connect the cavity to the outside of the cavity. A ventilated structure includes a cylindrical body and a cover. The cylindrical body is disposed inside the cavity and fixed to the surrounding plate. The cylindrical body is arranged around the outside of the vent hole and communicates with the vent hole. The cover is placed on the cylindrical body, and a gap is provided between the cover and the cylindrical body to allow the cavity to communicate with the outside of the cavity.

2. The refrigerator door structure according to claim 1, characterized in that, The inner diameter of the cover is larger than the outer diameter of the cylinder. The end of the cylinder away from the surrounding plate is stepped. The end of the cylinder away from the surrounding plate includes a first step surface and a second step surface. The first step surface and the second step surface are not on the same plane. The end of the cover close to the surrounding plate is not in contact with the surrounding plate.

3. The refrigerator door structure according to claim 1, characterized in that, The inner diameter of the cover is larger than the outer diameter of the cylinder. The end of the cylinder away from the surrounding plate is provided with a notch or protrusion. The end of the cover close to the surrounding plate is not in contact with the surrounding plate.

4. The refrigerator door structure according to claim 2, characterized in that, The cover is screwed to the cylinder. The cover includes multiple internal threads, and the cylinder includes multiple external threads. The multiple internal threads and the multiple external threads are connected in a mating manner. An outer channel is formed between two adjacent external threads, and an inner channel is formed between two adjacent internal threads. The depth of the outer channel is greater than the depth of the inner channel.

5. The refrigerator door structure according to claim 4, characterized in that, When the cover is placed on the cylinder, at least a portion of at least one of the outer channels is not covered by the cover.

6. The refrigerator door structure according to claim 5, characterized in that, The distance between the cover and the enclosure is greater than the width of the outer passage.

7. The door structure of the refrigerator according to any one of claims 1 to 6, characterized in that, At least one side of the enclosure is provided with a plurality of the ventilation structures, and all the ventilation structures on the same side are equidistantly arranged along the length direction of the enclosure.

8. The refrigerator door structure according to claim 7, characterized in that, Each of the aforementioned breathable structures corresponds to a plurality of the aforementioned breathable holes; and / or, The enclosure panel and the outer panel are integrally formed.

9. The door structure of the refrigerator according to any one of claims 1 to 6, characterized in that, The vent is truncated cone-shaped, and the diameter of the vent gradually decreases from the direction closer to the cavity to the direction farther away from the cavity.

10. A refrigerator, characterized in that, The refrigerator door structure includes any one of claims 1 to 9.

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