Refrigerator air duct sealing structure and refrigerator thereof
By setting a seal in the gap between the refrigerator air duct panel and the refrigeration room liner, embedded in the flange and the refrigeration room liner, multiple sealing parts are used to closely contact the air duct panel and the refrigeration room liner, the problem of cold air leakage is solved and a better sealing effect is achieved.
Patent Information
- Application Number
- CN202422421559.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-08
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-10-08
AI Technical Summary
The poor sealing between the existing refrigerator air duct panel and the refrigeration room liner leads to cold air leakage and frost problems.
A seal is provided at the gap between the air duct panel and the refrigeration room interior liner. The seal is embedded in the flange and the refrigeration room interior liner. The contact area is increased by the flange, and it is closely connected with the air duct panel and the refrigeration room interior liner through multiple sealing parts to seal the gap.
It effectively prevents cold air from leaking into the refrigerated room, avoids frost and other problems, and improves the sealing effect.
Smart Images
Figure CN223138171U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of refrigerators, in particular to a refrigerator air duct sealing structure and a refrigerator thereof. Background Art
[0002] Common refrigerators include direct-cooling refrigerators and air-cooling refrigerators. The air-cooling refrigerator mainly blows the cold air in the refrigerating compartment of the refrigeration system into the refrigerator compartment through the circulating air supply mechanism via the air duct.
[0003] The refrigerator has an air duct panel and a refrigerator inner liner. A refrigerator compartment is constructed in the refrigerator inner liner for food preservation. An air duct for cold air to pass through is provided in the air duct panel. The sealing method between the refrigerator inner liner and the air duct panel usually uses EPS foam to realize the air duct butt joint supplemented by a sponge sealing strip. The sponge has a certain resilience and can achieve a certain sealing effect. However, since the EPS foam is relatively fragile, it is easy to be damaged. During assembly, due to reasons such as foaming or manual assembly, problems such as poor fitting degree, inaccurate EPS positioning, and poor process consistency resulting in assembly gaps are likely to occur, making the air duct sealing performance poor. Cold air can escape from the gap between the air duct panel and the refrigerator inner liner into the refrigerator compartment, resulting in cold leakage and frosting problems. Summary of the Utility Model
[0004] In view of the above technical problems, the utility model provides a refrigerator air duct sealing structure.
[0005] A refrigerator air duct sealing structure includes: a refrigerator inner liner with a refrigerator compartment arranged inside; an air duct panel with an air duct for cold air to pass through, the air duct panel abuts against the refrigerator inner liner, and a flange is provided on one side of the air duct panel close to the refrigerator inner liner, and the flange is in clearance fit with the refrigerator inner liner; a sealing member is embedded in the gap and is in sealing contact with both the flange and the refrigerator inner liner.
[0006] With such a setting, gaps will inevitably be generated during the assembly process of the air duct panel and the refrigerator inner liner. The air duct panel extends a flange in the direction close to the refrigerator inner liner, that is, towards the refrigerator compartment. The sealing member is embedded in the flange and the refrigerator inner liner. The flange increases the contact area between the air duct panel and the sealing member. The upper side of the sealing member is in close contact with the flange, and the lower side is in contact with the refrigerator inner liner, thereby sealing the gap to ensure that cold air will not leak into the refrigerator compartment.
[0007] In one embodiment, the sealing member includes a first sealing portion, at least one side of the first sealing portion is set as an inclined surface, the first sealing portion extends into the gap, and the inclined surface abuts against the flange or the refrigerator inner liner.
[0008] In one embodiment, the side of the first sealing portion that abuts against the inner liner of the refrigerator compartment is provided as a flat surface. The inclined surface is formed on the side of the first sealing portion close to the flanging, and along the direction in which the sealant extends into the gap, the inclined surface inclines towards the inner liner of the refrigerator compartment.
[0009] In one embodiment, the sealant further includes a main body. The first sealing portion is connected to the main body, and the side of the main body close to the air duct panel abuts against the end face of the flanging.
[0010] In one embodiment, the sealant further includes a second sealing portion. One end of the second sealing portion is connected to the main body, and the other end abuts against the air duct panel. Moreover, the second sealing portion and the side surface of the air duct panel that abuts against the second sealing portion are arranged at an angle.
[0011] In one embodiment, the sealant further includes a third sealing portion. One end of the third sealing portion is connected to the main body, and the other end abuts against the inner liner of the refrigerator compartment. Moreover, the third sealing portion and the side surface of the inner liner of the refrigerator compartment that abuts against the third sealing portion are arranged at an angle.
[0012] In one embodiment, the inner liner of the refrigerator compartment has a first surface, a second surface, and a third surface. The first surface is connected to the second surface, and the second surface is connected to the third surface. And along the vertical direction, the first surface is higher than the third surface. The first sealing portion abuts against the first surface, and the third sealing portion abuts against the second surface.
[0013] In one embodiment, the second surface is provided as an arc surface, and at least part of the slope of the second surface is adapted to the slope of the third sealing portion.
[0014] In one embodiment, the sealant is made of an elastic material.
[0015] The present utility model further provides a refrigerator, including the refrigerator air duct sealing structure as described above.
[0016] Compared with the prior art, the present utility model sets a sealant at the gap between the air duct panel and the inner liner of the refrigerator compartment. The sealant is embedded between the flanging and the inner liner of the refrigerator compartment. The flanging increases the contact area between the air duct panel and the sealant. The upper side of the sealant tightly abuts against the flanging, and the lower side fits against the inner liner of the refrigerator compartment, thereby sealing the gap to ensure that cold air will not leak into the refrigerator compartment to cause problems such as frosting. And the specific structure of the sealant is further optimized, and the sealing degree is further improved by the abutting effects of the first sealing portion, the second sealing portion, and the third sealing portion on the sealant with the air duct panel and the inner liner of the refrigerator compartment. Description of the Drawings
[0017] Figure 1 Schematic diagram of the structure of one embodiment of the refrigerator provided by the present utility model;
[0018] Figure 2 Cross-sectional view of one embodiment of the refrigerator provided by the present utility model;
[0019] Figure 3 is Figure 2 Local enlarged view at position A in
[0020] Figure 4 Schematic diagram of the structure of one embodiment of the air duct sealing structure of the refrigerator provided by the present utility model.
[0021] The meanings represented by the symbols in the figure are as follows:
[0022] 100, air duct sealing structure of the refrigerator; 10, seal; 11, main body; 12, first sealing part; 121, inclined surface; 13, second sealing part; 14, third sealing part; 20, inner liner of the refrigerating chamber; 21, refrigerating chamber; 22, first surface; 23, second surface; 24, third surface; 30, air duct panel; 31, air duct; 32, flanging; 33, gap; 200, refrigerator. Detailed implementation manners
[0023] In order to make the above objects, features, and advantages of the present application more obvious and understandable, the following will describe the detailed implementation manners of the present application with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.
[0024] It should be noted that when a mechanism is referred to as "fixed to" or "disposed on" another mechanism, it can be directly on the other mechanism or there can also be an intermediate mechanism. When a mechanism is considered to be "connected" to another mechanism, it can be directly connected to the other mechanism or there may be an intermediate mechanism at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in the description of the present application are only for the purpose of illustration and do not represent the only implementation manner.
[0025] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present application, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.
[0026] In this application, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may mean that the first feature is in direct contact with the second feature, or the first feature is in indirect contact with the second feature through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature may mean that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.
[0027] Unless otherwise defined, all technical and scientific terms used in the description of this application have the same meaning as commonly understood by those skilled in the technical field to which this application belongs. The terms used in the description of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used in the description of this application includes any and all combinations of one or more of the related listed items.
[0028] The present utility model provides a refrigerator air duct sealing structure 100, which can seal the gap between the inner liner 20 of the refrigerating chamber and the air duct panel 30, so as to avoid problems such as frosting caused by cold air leaking into the refrigerating chamber 21.
[0029] Please refer to Figures 1 - 4 , the refrigerator air duct sealing structure 100 includes an inner liner 20 of the refrigerating chamber, an air duct panel 30 and a seal 10. The inner liner 20 of the refrigerating chamber is provided as the refrigerating chamber 21. The air duct panel 30 is configured with an air duct 31 for cold air to pass through. The air duct panel 30 abuts against the inner liner 20 of the refrigerating chamber, and a flange 32 is provided on the side of the air duct panel 30 close to the inner liner 20 of the refrigerating chamber. The flange 32 is in clearance fit with the inner liner 20 of the refrigerating chamber at a gap 33; the seal 10 is embedded in the gap 33 and is in sealing contact with both the flange 32 and the inner liner 20 of the refrigerating chamber. In this way, gaps are inevitably generated during the assembly process of the air duct panel 30 and the inner liner 20 of the refrigerating chamber. The air duct panel 30 extends a flange 32 in the direction close to the inner liner 20 of the refrigerating chamber, that is, the direction towards the refrigerating chamber 21. The seal 10 is then embedded between the flange 32 and the inner liner 20 of the refrigerating chamber. The flange 32 increases the contact area between the air duct panel 30 and the seal 10. The upper side of the seal 10 is in close contact with the flange 32, and the lower side is in fit with the inner liner 20 of the refrigerating chamber, thereby sealing the gap 33 to ensure that cold air does not leak into the refrigerating chamber 21.
[0030] It should be explained that the refrigerator 200 is usually placed flat on the ground. Therefore, the up and down directions in this application refer to the vertically downward (gravity direction) and vertically upward directions when the refrigerator 200 is in the normal placement state.
[0031] Further, the seal 10 includes a first sealing portion 12. At least one side of the first sealing portion 12 is provided as an inclined surface 121. The first sealing portion 12 extends into the gap 33, and the inclined surface 121 abuts against the flanging 32 or the inner liner 20 of the refrigerator compartment. In this way, the inclined surface 121 can make the abutment between the first sealing portion 12 and the flanging 32 or the inner liner 20 of the refrigerator compartment closer. Moreover, regardless of the size of the height of the gap 33 in the vertical direction, due to the existence of the inclined surface 121, if the height of the gap 33 is small, the depth of the first sealing portion 12 extending in can be smaller to maintain a reasonable abutment effect. If the height of the gap 33 is large, the first sealing portion 12 can extend in more to maintain a reasonable abutment effect.
[0032] Specifically, in this embodiment, the flanging 32 extends horizontally in the horizontal direction. Therefore, the opening direction of the gap 33 is also horizontal and faces the direction of the refrigerator compartment 21, and the first sealing portion 12 extends into the gap 33 in the horizontal direction.
[0033] Furthermore, the side of the first sealing portion 12 abutting against the inner liner 20 of the refrigerator compartment is provided as a plane. The inclined surface 121 is formed on the side of the first sealing portion 12 close to the flanging 32, and along the direction in which the seal 10 extends into the gap 33, the inclined surface 121 inclines towards the inner liner 20 of the refrigerator compartment. In this way, since the inner liner 20 of the refrigerator compartment is located below the seal 10, the seal 10 can be directly placed on the inner liner 20 of the refrigerator compartment and move along the upper side surface of the inner liner 20 of the refrigerator compartment. Therefore, the side of the first sealing portion 12 abutting against the inner liner 20 of the refrigerator compartment is provided as a plane, which can enable the inner liner 20 of the refrigerator compartment to play a guiding role and facilitate the seal 10 to enter the gap 33.
[0034] The seal 10 further includes a main body 11. The first sealing portion 12 is connected to the main body 11, and the side of the main body 11 close to the air duct panel 30 abuts against the end surface of the flanging 32. In this way, the abutment between the main body 11 and the end surface of the flanging 32 can achieve double sealing and further improve the sealing effect.
[0035] The seal 10 further includes a second sealing portion 13. One end of the second sealing portion 13 is connected to the main body 11, and the other end abuts against the air duct panel 30, and the second sealing portion 13 and the side surface of the air duct panel 30 abutting against the second sealing portion 13 are arranged at an angle. In this way, the abutment between the second sealing portion 13 and the air duct panel 30 can also improve the sealing effect of the seal 10. Even if leakage occurs at the first sealing portion 12, the second sealing portion 13 can also play a role in blocking the cold air from blowing out. And the second sealing portion 13 is arranged at an angle with the air duct panel 30, which can cause it to have a slight deformation and the abutment effect is better.
[0036] The seal 10 further includes a third sealing portion 14. One end of the third sealing portion 14 is connected to the main body 11, and the other end abuts against the inner liner 20 of the refrigerating chamber. Moreover, the third sealing portion 14 and the side surface of the inner liner 20 of the refrigerating chamber where the third sealing portion 14 abuts are arranged at an angle. Similarly to the above, the abutment of the third sealing portion 14 against the inner liner 20 of the refrigerating chamber can further improve the sealing effect of the seal 10. Even if leakage occurs at the first sealing portion 12, the third sealing portion 14 can also play a role in blocking the cold air from blowing out. And the third sealing portion 14 and the inner liner 20 of the refrigerating chamber are arranged at an angle, which can cause it to undergo slight deformation, and the abutment effect is better.
[0037] The inner liner 20 of the refrigerating chamber has a first surface 22, a second surface 23 and a third surface 24. The first surface 22 is connected to the second surface 23, and the second surface 23 is connected to the third surface 24. And along the vertical direction, the first surface 22 is higher than the third surface 24. The first sealing portion 12 abuts against the first surface 22, and the third sealing portion 14 abuts against the second surface 23.
[0038] Thus, since the first surface 22 is higher and the third surface 24 is lower, and the two are connected by the second surface 23, the second surface 23 needs to extend from the high place to the low place, forming an inclined structure. And the third sealing portion 14 abuts against the second surface 23, and the third sealing portion 14 itself is also inclined with respect to the inner liner 20 of the refrigerating chamber. Therefore, their extending directions are more consistent, their abutment is more fitting, the contact area is larger, and the sealing effect is better.
[0039] Preferably, the second surface 23 is set as an arc surface, and at least part of the slope of the second surface 23 is adapted to the slope of the third sealing portion 14. The contact area of the arc surface with the third sealing portion 14 is large, and it can also reduce the possible damage to the seal 10 caused by the angular structure.
[0040] In this embodiment, the seal 10 is made of an elastic material to cope with the interference fit in the above embodiment. When the seal 10 is made of an elastic material, the first sealing portion 12 can be press-fitted into the gap 33, so that the inclined surface 121 on the first sealing portion 12 abuts more tightly against the inner liner of the air duct 31. The second sealing portion 13 is in interference abutment with the inner liner of the air duct 31, so that the second sealing portion 13 always has an elastic tendency force to move towards the inner liner of the air duct 31. Although its position remains unchanged, its abutment against the inner liner of the air duct 31 will be more fitting and tight. Similarly, the sealing effect of the third sealing portion 14 abutting against the inner liner 20 of the refrigerating chamber is also better. And after being made of an elastic material, the process difficulty and the precision requirement for assembly are reduced, and it is more convenient to adjust.
[0041] In this embodiment, the seal 10 is made of rubber material. In other embodiments, it can also be made of silica gel or other materials.
[0042] The present utility model also provides a refrigerator 200, which includes the refrigerator air duct sealing structure 100 as described above.
[0043] Compared with the prior art, in the present utility model, a seal 10 is provided at the gap 33 between the air duct panel 30 and the refrigerating chamber inner liner 20. The seal 10 is embedded in the flanging 32 and the refrigerating chamber inner liner 20. The flanging 32 increases the contact area between the air duct panel 30 and the seal 10. The upper side of the seal 10 is in close contact with the flanging 32, and the lower side is attached to the refrigerating chamber inner liner 20, thereby sealing the gap 33 to ensure that cold air will not leak into the refrigerating chamber 21 to cause problems such as frosting. Moreover, the specific structure of the seal 10 is further optimized, and the sealing degree is further improved by the abutting effects of the first sealing portion 12, the second sealing portion 13, and the third sealing portion 14 on the seal 10 with the air duct panel 30 and the refrigerating chamber inner liner 20.
[0044] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.
[0045] The above-described embodiments only represent several implementation manners of the present utility model. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the present utility model patent shall be subject to the appended claims.
Claims
1. A refrigerator air duct sealing structure, characterized in that, Comprising: A refrigerator inner liner (20) with an interior configured as a refrigerating compartment (21); An air duct panel (30) configured with an air duct (31) for cold air to pass through. The air duct panel (30) abuts against the refrigerator inner liner (20), and a flanging (32) is provided on a side of the air duct panel (30) close to the refrigerator inner liner (20). The flanging (32) is in clearance fit (33) with the refrigerator inner liner (20); A seal (10) embedded in the clearance (33) and in sealing abutment with both the flanging (32) and the refrigerator inner liner (20).
2. The refrigerator air duct sealing structure according to claim 1, wherein, The seal (10) includes a first sealing portion (12), and at least one side of the first sealing portion (12) is provided as an inclined surface (121). The first sealing portion (12) extends into the clearance (33), and the inclined surface (121) abuts against the flanging (32) or the refrigerator inner liner (20).
3. The refrigerator air duct sealing structure according to claim 2, characterized in that, A side of the first sealing portion (12) abutting against the refrigerator inner liner (20) is provided as a plane. The inclined surface (121) is provided on a side of the first sealing portion (12) close to the flanging (32), and along the direction in which the seal (10) extends into the clearance (33), the inclined surface (121) inclines towards the refrigerator inner liner (20).
4. The refrigerator air duct sealing structure according to claim 2, characterized in that, The seal (10) further includes a main body (11), the first sealing portion (12) is connected to the main body (11), and a side of the main body (11) close to the air duct panel (30) abuts against an end face of the flanging (32).
5. The refrigerator air duct sealing structure according to claim 4, characterized in that The seal (10) further includes a second sealing portion (13). One end of the second sealing portion (13) is connected to the main body (11), and the other end abuts against the air duct panel (30). The second sealing portion (13) and a side surface of the air duct panel (30) against which the second sealing portion (13) abuts are arranged at an angle.
6. The refrigerator air duct sealing structure according to claim 4, wherein The seal (10) further includes a third sealing portion (14). One end of the third sealing portion (14) is connected to the main body (11), and the other end abuts against the refrigerator inner liner (20). The third sealing portion (14) and a side surface of the refrigerator inner liner (20) against which the third sealing portion (14) abuts are arranged at an angle.
7. The refrigerator air duct sealing structure according to claim 6, characterized in that, The refrigerator inner liner (20) has a first surface (22), a second surface (23), and a third surface (24). The first surface (22) is connected to the second surface (23), and the second surface (23) is connected to the third surface (24). Along the vertical direction, the first surface (22) is higher than the third surface (24). The first sealing portion (12) abuts against the first surface (22), and the third sealing portion (14) abuts against the second surface (23).
8. The refrigerator air duct sealing structure according to claim 7, wherein, The second surface (23) is provided as an arc surface, and at least part of the slope of the second surface (23) is adapted to the slope of the third sealing portion (14).
9. The refrigerator air duct sealing structure according to claim 1, wherein, The seal (10) is made of an elastic material.
10. A refrigerator, characterized in that, Including the refrigerator air duct sealing structure (100) according to any one of claims 1-9.