Ultrathin energy-saving door seal

Abstract

The utility model provides an ultrathin energy-saving door seal. The ultrathin energy-saving door seal comprises a magnetic strip bag, a first air bag, a second air bag, a third air bag, a barb structure and a flash. The first air bag and the magnetic strip bag are arranged in parallel, the second air bag is located below the first air bag and is parallel to the first air bag, and the third air bag is located below the magnetic strip bag and the first air bag and is parallel to the second air bag; the barb structure is hollow, and the flash extends out of the side, close to the barb structure, of the third air bag and extends in the direction away from the third air bag and the barb structure. The height of the door seal is 5-6 mm, and the width of the door seal is 20-25 mm. According to the structural design of the door seal, the height is reduced, microcellular foaming materials are adopted, and sealing structures such as barb structures and fins are arranged, the structures jointly act on the overall structure of the door seal, and by optimizing the position connection relation of all the structures, the heat transfer section is reduced, the cold and heat exchange area is reduced, and the energy-saving efficiency of the refrigerator is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of household appliances, more particularly to an ultra-thin energy-saving door seal. BACKGROUND

[0002] As a component for sealing and heat preservation of a refrigerator, the door seal plays a role in heat insulation and is one of the key factors affecting the energy consumption of the refrigerator. Door seal cold leakage accounts for 15-20% of the total machine cold leakage, and with the improvement of the heat preservation effect of the refrigerator, the proportion will continue to rise. The heat insulation performance of the door seal directly determines the energy consumption level of the refrigerator in maintaining a constant temperature state, and is of great significance to improving the energy efficiency ratio of the refrigerator, prolonging the food preservation time and reducing the operating cost.

[0003] In the current refrigerator design, the door seal usually adopts an air bag structure, which increases its softness and sealing performance by filling gas (such as air) inside. These air bags are often designed to a certain thickness and height to ensure that the door seal can closely fit the edge of the door body, preventing cold air leakage. In addition, the selection of door seal material is also very important, it must have good elasticity, wear resistance and weather resistance to cope with various environments and conditions during the use of the refrigerator.

[0004] However, the height of the traditional door seal air bag is often high, which not only increases the overall thickness of the refrigerator, but also increases the contact area between the door seal and the door body, thereby increasing the possibility of heat exchange. Due to the high height of the air bag, the gap between the door seal and the door body becomes relatively large, which makes it easier for cold air to leak out of the gap, and also allows external hot air to enter the refrigerator. Not only does it reduce the heat preservation effect of the refrigerator, but it also increases the energy consumption of the refrigerator, making the energy saving efficiency lower. CONTENT OF THE UTILITY MODEL

[0005] To solve the problem of the high height of the door seal air bag in the prior art, which reduces the heat preservation effect of the refrigerator and increases the energy consumption of the refrigerator, making the energy saving efficiency lower.

[0006] The present application provides an ultra-thin energy-saving door seal, comprising: a magnetic strip bag, a first air bag, a second air bag, a third air bag, a barb structure and a flash;

[0007] The first air bag is arranged side by side with the magnetic strip bag and extends along the width direction of the door seal body;

[0008] The second air bag is located below the first air bag and parallel to the first air bag, and the third air bag is located below the magnetic strip bag and the first air bag and is arranged side by side with the second air bag;

[0009] The barb structure is arranged below the second air bag and the third air bag, the barb structure is hollow inside, and two sides of the barb structure are respectively outwardly protruded to form a first protruding structure and a second protruding structure;

[0010] The burr extends from a side of the third air bag close to the barb structure and extends away from the third air bag and the barb structure.

[0011] The height of the door seal is 5-6 mm, and the width is 20-25 mm.

[0012] In a feasible implementation, the door seal is a microcellular foam structure, which is made by using an organic expandable microsphere foaming process.

[0013] In a feasible implementation, the first protruding structure and the second protruding structure have concave teeth, and the first protruding structure and the second protruding structure are bent at the positions of the concave teeth when the first protruding structure and the second protruding structure are in contact with the door body.

[0014] In a feasible implementation, a connecting rib is arranged between the second air bag and the third air bag, the connecting rib separates the second air bag and the third air bag, and the connecting rib is in a Z shape.

[0015] In a feasible implementation, the burr covers the inner edge of the door barrel when the burr is in contact with the inner edge of the door barrel.

[0016] In a feasible implementation, the outer surface of the second air bag is provided with a plurality of sealing short edges, the sealing short edges are distributed along the height direction of the door seal, and extend away from the second air bag.

[0017] In a feasible implementation, a reinforced magnetic stripe is arranged inside the magnetic stripe bag, the reinforced magnetic stripe extends along the length direction of the door seal, and the magnetic strength of the reinforced magnetic stripe gradually increases along the width direction of the door seal.

[0018] In a feasible implementation, the first air bag, the second air bag and the third air bag all adopt a multi-layer composite structure, including a gas barrier layer and an elastic layer.

[0019] The gas barrier layer is located on the inner side of the first air bag, the second air bag and the third air bag, and the elastic layer is located on the outer side of the first air bag, the second air bag and the third air bag.

[0020] In a feasible implementation, the bottom of the barb structure is provided with an elastic sealing strip, the elastic sealing strip extends along the length direction of the door seal, and is attached to the surface of the door body.

[0021] From the above, the application provides an ultra-thin energy-saving door seal, the structural design of the door seal includes reducing the height, using a microporous foaming material, and setting a barb structure and a flash and other sealing structures, which jointly act on the overall structure of the door seal, and by optimizing the positional connection relationship of each structure, the purposes of reducing the heat transfer section, reducing the cold and heat exchange area, and improving the energy-saving efficiency are achieved. BRIEF DESCRIPTION OF DRAWINGS

[0022] The drawings incorporated in and forming a part of the specification, illustrate preferred embodiments of the present application and, together with the description, serve to explain the principles of the application. In the drawings:

[0023] Figure 1 is a structural schematic diagram of the ultra-thin energy-saving door seal shown in the embodiments of the application.

[0024] BRIEF DESCRIPTION OF DRAWINGS

[0025] 10 - magnetic stripe bag; 20 - first air bag; 30 - second air bag; 40 - third air bag; 50 - barb structure; 60 - flash; 31 - connecting rib; 32 - sealing short side; 51 - first protruding structure; 52 - second protruding structure. DETAILED DESCRIPTION

[0026] Example implementations will now be described more fully with reference to the accompanying drawings. Example implementations may, however, be implemented in many different forms and should not be construed as limited to the implementations set forth herein; rather, these implementations are provided so that this disclosure will be thorough and complete, and will fully convey the scope of example implementations to those skilled in the art. The described features, structures, or characteristics can be combined in one or more implementations. In the following description, numerous specific details are provided to give a thorough understanding of implementations of the present application.

[0027] The door seal strip usually adopts an air bag structure, and the softness and sealing property thereof are increased by filling with an internal gas (such as air). These air bags are often designed to have a certain thickness and height to ensure that the door seal strip can closely fit the edge of the door body to prevent cold air leakage. However, the height of the conventional door seal air bag is often high, and due to the high height of the air bag, the gap between the door seal strip and the door body becomes relatively large, which makes the cold air more easily leak out of the gap, and also makes the external hot air more easily invade into the refrigerator. Not only does this reduce the heat preservation effect of the refrigerator, but also increases the energy consumption of the refrigerator, resulting in a low energy-saving efficiency.

[0028] To address the aforementioned problems, this application provides an ultra-thin energy-saving door seal, as described above. Figure 1 As shown, it includes: magnetic stripe bladder 10, first air bladder 20, second air bladder 30, third air bladder 40, barb structure 50, and burr 60.

[0029] The magnetic strip bladder 10 is located at the very top of the door seal, arranged parallel to the first airbag 20, and extends along the width of the door seal body. The magnetic strip bladder 10 contains embedded magnetic material, ensuring the door seal adheres firmly to the refrigerator door, enhancing its stability and initial sealing. The first airbag 20 is adjacent to the magnetic strip bladder 10 and also extends along its width. As one of the main sealing layers, the first airbag 20, through its flexibility and the gas (such as air) it contains, forms an initial sealing barrier, reducing direct leakage of cold air.

[0030] The second airbag 30 is located below and parallel to the first airbag 20. The second airbag 30 is designed to be flatter, but its elastic material ensures a tight fit with the door edge, further preventing cold air leakage and reducing the intrusion of external heat. The third airbag 40 is located below the magnetic strip 10 and the first airbag 20, alongside the second airbag 30, forming a multi-layered sealing structure. The presence of the third airbag enhances the overall stability and sealing of the door seal, especially providing better cushioning and sealing when the door is subjected to external forces (such as opening and closing).

[0031] The barbed structure 50 is located below the second airbag 30 and the third airbag 40. The barbed structure 50 is hollow inside, and the two sides of the barbed structure 50 protrude outward to form a first protruding structure 51 and a second protruding structure 52, respectively.

[0032] The barbed structure 50 is located below the second airbag 30 and the third airbag 40. Its hollow internal design reduces weight, while the first protruding structure 51 and the second protruding structure 52 protrude outward on both sides, which can firmly grasp the slight unevenness of the door edge like a hook, effectively preventing cold air from leaking through the tiny gaps and enhancing the tightness of the seal.

[0033] The burr 60 extends from the side of the third airbag 40 near the barb structure 50, and extends away from both. The burr 60 design not only enhances the overall strength of the door seal, but also forms an additional contact point with the refrigerator door frame when the door is closed, further reducing cold air leakage channels and improving sealing performance.

[0034] The door seal has a height of 5-6mm and a width of 20-25mm. Compared to traditional door seals, it significantly reduces the height, minimizing the path for cold air leakage while maintaining good sealing and flexibility. The ultra-thin door seal ensures a tight fit with the door frame, effectively preventing the penetration of air, moisture, and dust, thus improving the sealing performance.

[0035] The door seal structure in this embodiment forms a multi-layered sealing system, which not only improves the tightness of the seal but also adapts to slight differences in the edges of different door panels. By reducing cold air leakage and hot air intrusion, it significantly improves the refrigerator's insulation effect, reduces energy consumption, and increases energy efficiency. The barbed structure and burr design not only enhance the door seal's fixation and sealing performance but also improve its durability and stability during use. Simultaneously, the reduced door seal height decreases the heat transfer cross-section, thereby reducing the heat exchange area and significantly improving energy efficiency.

[0036] In some embodiments of this application, the door seal is a microporous foam structure, manufactured using an organic expandable microsphere foaming process.

[0037] Microporous foam structures refer to a special structure in which a material contains a large number of tiny pores. In this application, this structure is achieved through an organic expandable microsphere foaming process. This process utilizes the property of organic expandable microspheres to expand rapidly when heated, forming uniformly distributed tiny pores in the material. These pores not only reduce the weight of the door seal but also endow it with unique physical and chemical properties.

[0038] The microporous foam structure allows the door seal to maintain sufficient strength while significantly reducing its weight, facilitating installation and maintenance. Simultaneously, it gives the door seal better elasticity and flexibility, enabling it to fit more tightly against door or window frames, effectively preventing the penetration of air, moisture, and dust, and improving sealing performance. The air within the micropores acts as a good heat insulation layer, effectively blocking heat transfer paths and improving the door seal's thermal insulation performance. The microporous structure also effectively absorbs and isolates sound, reducing noise transmission. Door seals made using organic expandable microsphere foaming technology have stronger weather resistance. They can resist the effects of harsh environmental factors such as ultraviolet radiation, humidity, high and low temperatures, extending their service life.

[0039] In some embodiments of this application, the first protruding structure 51 and the second protruding structure 52 have concave teeth, and when the first protruding structure 51 and the second protruding structure 52 come into contact with the door body, they bend at the concave tooth positions.

[0040] The first protruding structure 51 and the second protruding structure 52 are protruding forms that extend in the direction when the door is closed, which not only increases the contact area with the door, but also provides it with specific mechanical support points.

[0041] In some embodiments of this application, a connecting rib 31 is provided between the second airbag 30 and the third airbag 40. The connecting rib 31 separates the second airbag 30 and the third airbag 40, and the connecting rib 31 is Z-shaped. The two work together to form a clamping effect on the door.

[0042] The concave teeth not only increase the complexity of physical contact, making the interaction between structures closer, but also guide the door material to undergo slight elastic bending locally when the door closes and contacts it, thereby increasing friction and improving the locking effect. This enhances the door's locking ability and reduces the risk of accidental opening due to external forces. It also reduces the gap between the door and the frame, effectively preventing the penetration of air, moisture, and noise. Simultaneously, it disperses the impact force when the door closes, reducing wear on the door frame edges and extending its service life.

[0043] In some embodiments of this application, when the burr 60 contacts the inner edge of the door frame, it covers the inner edge of the door frame.

[0044] The flash 60 extends from the edge of the third airbag 40. When the door seal is fully fitted to the door liner, the flash 60 seamlessly covers the inner edge of the door liner, ensuring a continuous, gapless contact surface between the flash 60 and the door liner. The function of the flash 60 is to enhance the seal between the door seal and the door liner. By covering the inner edge of the door liner, the flash 60 forms an additional sealing barrier, effectively preventing cold air leakage and the intrusion of external hot air. In addition, the soft and elastic material of the flash 60 can adapt to the slight unevenness of the door liner edge, ensuring the stability and durability of the seal.

[0045] Traditional door seal designs often suffer from cold air leakage and increased energy consumption due to the tiny gap between the door seal and the edge of the door liner. The proposed 60-flash design, which seamlessly covers the inner edge of the door liner, effectively solves this problem. The introduction of 60-flash not only enhances sealing but also improves the energy efficiency of the refrigeration equipment and reduces operating costs.

[0046] In some embodiments of this application, the outer surface of the second airbag 30 is provided with a plurality of sealing short sides 32, which are distributed along the height direction of the door seal and extend away from the second airbag 30.

[0047] The sealing short side 32, as an additional sealing structure, forms an extra sealing layer between the second airbag 30 and the door frame. The design of the sealing short side 32 allows the door seal to more effectively resist minor unevenness at the door frame edge when under pressure, reducing the risk of cold air leakage and increasing the durability and stability of the door seal. The introduction of the sealing short side 32 results in a tighter contact surface between the door seal and the door frame, effectively reducing cold air leakage and improving the insulation effect of the refrigeration equipment.

[0048] In some embodiments of this application, a reinforcing magnetic strip is disposed inside the magnetic strip pouch 10. The reinforcing magnetic strip extends along the length direction of the door seal, and the magnetic intensity of the reinforcing magnetic strip gradually increases along the width direction of the door seal. That is, the magnetic intensity gradually increases from one side of the door seal to the other, forming a gradient distribution.

[0049] Specifically, the magnetic strip bladder 10 serves as the carrier and protective layer for the reinforced magnetic strip, ensuring that the reinforced magnetic strip can be stably fixed inside the door seal while preventing it from being damaged by the external environment. The flexibility and durability of the magnetic strip bladder 10 enable the door seal to maintain good sealing performance during long-term use.

[0050] The reinforced magnetic strip provides stronger adhesion, ensuring the door seal fits tightly against the door frame and reducing the risk of cold air leakage. The gradually increasing magnetic strength along the width of the door seal allows for a more even distribution of adhesion during closure, thus improving the reliability and stability of the seal.

[0051] Conventional magnetic strips typically exhibit uniform magnetic strength, which can lead to uneven distribution of the attraction force between the door seal and the door frame during closure, thus affecting the sealing effect. The reinforced magnetic strip design proposed in this application gradually increases the magnetic strength along the width of the door seal, enabling the door seal to more evenly attract the door frame when closed. This enhanced gradient magnetism of the magnetic strip maintains a tight seal.

[0052] In some embodiments of this application, the first airbag 20, the second airbag 30, and the third airbag 40 all adopt a multi-layer composite structure, including a gas barrier layer and an elastic layer; the gas barrier layer is located inside the first airbag 20, the second airbag 30, and the third airbag 40, and the elastic layer is located outside the first airbag 20, the second airbag 30, and the third airbag 40.

[0053] The gas barrier layer is made of polymer material, which has extremely low air permeability and excellent chemical stability. It can effectively prevent gas molecules from passing through and maintain the airbag's inflation state even under high pressure or extreme temperature conditions, thus extending the airbag's service life.

[0054] As the core protective layer of the airbag structure, the gas barrier layer is located on the innermost side of the first airbag 20, the second airbag 30, and the third airbag 40, that is, the side directly facing the airbag's interior. The main task of this layer is to form a solid barrier, effectively preventing gas leakage, ensuring that the airbag maintains a stable shape after inflation, and providing continuous protection.

[0055] The elastic layer is typically made of polyurethane, rubber, or other materials with a high modulus of elasticity, and is designed to improve the adaptability and impact resistance of the airbag. The elastic layer not only adapts to surfaces of objects of different shapes and sizes, but also responds rapidly upon impact, reducing the direct impact force on the human body and increasing safety.

[0056] The elastic layer is located on the outside of the airbag, the side that comes into contact with the external environment. It not only enhances the overall flexibility and abrasion resistance of the airbag, but also absorbs and disperses impact forces through its elastic deformation capacity when the airbag is subjected to external impact, further protecting the door seal. The elastic layer and the gas barrier layer are tightly bonded together using advanced adhesive technology, ensuring no gaps between them, thereby improving the overall structural strength and sealing performance of the airbag.

[0057] This multi-layered composite structure design first solves the problems of traditional airbags being prone to leakage and having poor durability. By introducing a gas barrier layer, the airbag's air retention capacity and long-term stability are significantly improved. Secondly, the addition of an elastic layer not only enhances the comfort and adaptability of the airbag but also improves its protective performance in complex environments. Especially when the refrigerator door is opened and closed quickly, it can more effectively absorb and disperse impact forces, improving the safety of the door seal.

[0058] In some embodiments of this application, the bottom of the barbed structure 50 is provided with an elastic sealing strip, which extends along the length of the door seal and fits against the surface of the door.

[0059] The barbed structure 50 ensures that the door fits tightly against the door frame when closed, preventing the intrusion of outside air, dust, or noise. In this embodiment, the bottom of the barbed structure 50 is specifically designed to support and secure the resilient sealing strip. The resilient sealing strip extends along the length of the door seal and fits tightly against the bottom of the barbed structure 50. The resilient sealing strip is made of a highly elastic material, such as silicone, rubber, or thermoplastic elastomer (TPE), to give the sealing strip flexibility and resilience.

[0060] When the door is closed, the barbed structure 50 first contacts the door frame, using its physical structure to initially fix the door's position. Subsequently, the elastic sealing strip fits tightly against the door surface, effectively filling gaps caused by manufacturing tolerances, thermal expansion and contraction of materials, or long-term use, thereby achieving a better sealing effect.

[0061] As described above, this application provides an ultra-thin energy-saving door seal, comprising: a magnetic stripe, a first airbag, a second airbag, a third airbag, a barb structure, and a flash. The first airbag and the magnetic stripe are arranged side by side; the second airbag is located below and parallel to the first airbag; the third airbag is located below the magnetic stripe and the first airbag, and is arranged side by side with the second airbag. The barb structure is hollow inside, and the flash extends from the side of the third airbag closest to the barb structure and extends away from the third airbag and the barb structure. The height of the door seal is 5-6 mm, and the width is 20-25 mm. The structural design of the door seal includes reducing the height, using microporous foam material, and setting sealing structures such as barbs and flash. These structures work together to improve the overall structure of the door seal. By optimizing the positional connection relationship of each structure, the heat transfer cross section is reduced, the heat exchange area is reduced, and the energy efficiency of the refrigerator is improved.

[0062] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the disclosure herein. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the following claims.

Claims

1. An ultra-thin energy-saving door seal, characterized in that, include: Magnetic stripe bag (10), first air bag (20), second air bag (30), third air bag (40), barb structure (50) and flash (60); The first airbag (20) and the magnetic stripe bag (10) are arranged side by side and extend along the width direction of the door seal body; The second airbag (30) is located below the first airbag (20) and parallel to the first airbag (20). The third airbag (40) is located below the magnetic strip bag (10) and the first airbag (20) and is parallel to the second airbag (30). The barbed structure (50) is disposed below the second airbag (30) and the third airbag (40). The barbed structure (50) is hollow inside, and the two sides of the barbed structure (50) protrude outward to form a first protruding structure (51) and a second protruding structure (52), respectively. The burr (60) extends from the side of the third airbag (40) near the barb structure (50) and extends away from the third airbag (40) and the barb structure (50); The door seal has a height of 5-6mm and a width of 20-25mm.

2. The ultra-thin energy-saving door seal according to claim 1, characterized in that, The door seal has a microporous foam structure and is made using an organic expandable microsphere foaming process.

3. The ultra-thin energy-saving door seal according to claim 1, characterized in that, The first protruding structure (51) and the second protruding structure (52) have concave teeth, and when the first protruding structure (51) and the second protruding structure (52) come into contact with the door body, they bend at the concave teeth position.

4. The ultra-thin energy-saving door seal according to claim 1, characterized in that, A connecting rib (31) is provided between the second airbag (30) and the third airbag (40). The connecting rib (31) separates the second airbag (30) and the third airbag (40), and the connecting rib (31) is Z-shaped.

5. The ultra-thin energy-saving door seal according to claim 1, characterized in that, When the burr (60) comes into contact with the inner edge of the door panel, it covers the inner edge of the door panel.

6. The ultra-thin energy-saving door seal according to claim 1, characterized in that, The outer surface of the second airbag (30) is provided with a plurality of sealing short sides (32), which are distributed along the height direction of the door seal and extend away from the second airbag (30).

7. The ultra-thin energy-saving door seal according to claim 1, characterized in that, The magnetic stripe pouch (10) is provided with a reinforced magnetic stripe that extends along the length of the door seal and whose magnetic strength gradually increases along the width of the door seal.

8. The ultra-thin energy-saving door seal according to claim 1, characterized in that, The first airbag (20), the second airbag (30) and the third airbag (40) all adopt a multi-layer composite structure, including a gas barrier layer and an elastic layer; The gas barrier layer is located inside the first airbag (20), the second airbag (30) and the third airbag (40), and the elastic layer is located outside the first airbag (20), the second airbag (30) and the third airbag (40).

9. The ultra-thin energy-saving door seal according to claim 1, characterized in that, The bottom of the barbed structure (50) is provided with an elastic sealing strip, which extends along the length of the door seal and fits against the surface of the door.

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