Adsorption components and preservation units for refrigeration equipment

Abstract

This utility model discloses an adsorption element and a preservation unit for a refrigeration device. The adsorption element includes an adsorption layer, a support layer, and a protective layer. The support layer is disposed on one side of the adsorption layer along its thickness direction. The protective layer is disposed on either the side of the support layer away from the adsorption layer or the side of the adsorption layer away from the support layer. According to this utility model, by placing the protective layer on either the side of the support layer away from the adsorption layer or the side of the adsorption layer away from the support layer, the protective layer protects both the support layer and the adsorption layer, isolating them from external physical impacts (such as collisions or compression) and dust and impurities. This prevents contamination or structural damage to the adsorption layer, effectively improving the adsorption performance of the adsorption element, such as its ability to adsorb odors or moisture, and enhancing its overall strength and durability. Furthermore, the single-sided placement of the protective layer on the adsorption layer reduces the amount of protective layer used, thereby helping to lower the manufacturing difficulty and cost of the adsorption element.

Description

Technical Field

[0001] This utility model relates to the field of adsorption technology, and in particular to an adsorption element and a preservation unit for refrigeration devices. Background Technology

[0002] In related technologies, adsorption often uses individually placed activated carbon bags or diatomaceous earth pads. However, when fruit and vegetable juices, condensation, or oily dirt contaminate the surface of materials such as activated carbon bags or diatomaceous earth pads, they quickly penetrate into the interior of the materials, not only clogging the pores of adsorption and greatly reducing their adsorption performance, but also causing bacteria and mold to grow in the humid organic environment, making the materials themselves a source of pollution. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. Therefore, one objective of this invention is to provide an adsorption element that utilizes a protective layer to protect the support layer and the adsorption layer, preventing the adsorption layer from being contaminated or structurally damaged, effectively improving the adsorption performance of the adsorption element, such as its ability to adsorb odors or moisture, and enhancing the overall strength and durability of the adsorption element.

[0004] Another objective of this invention is to provide a preservation unit for refrigeration equipment.

[0005] An adsorption member according to a first aspect of the present invention includes: an adsorption layer; a support layer disposed on one side of the adsorption layer in the thickness direction; and a protective layer disposed on the side of the support layer away from the adsorption layer, or on the side of the adsorption layer away from the support layer.

[0006] According to the embodiments of this utility model, the adsorbent, by placing a protective layer on the side of the support layer away from the adsorbent layer, or on the side of the adsorbent layer away from the support layer, protects both the support layer and the adsorbent layer, isolating them from external physical impacts (such as collisions and compression) and dust and impurities. This prevents the adsorbent layer from being contaminated or structurally damaged, effectively improving the adsorbent's performance in adsorbing odors or moisture absorption, and enhancing its overall strength and durability. Furthermore, the single-sided placement of the protective layer on the adsorbent layer reduces the amount of protective layer used, thereby helping to lower the manufacturing difficulty and cost of the adsorbent.

[0007] According to some embodiments of the present invention, the protective layer includes: a first protective layer and a second protective layer; The first protective layer is disposed on the side of the support layer away from the adsorption layer, and the second protective layer is disposed on the side of the adsorption layer away from the support layer.

[0008] According to some embodiments of the present invention, both the first protective layer and the second protective layer are breathable layers that are waterproof and / or oil-proof and / or dustproof.

[0009] According to some embodiments of the present invention, the first protective layer and the second protective layer are non-woven fabric layers.

[0010] According to some embodiments of the present invention, the first protective layer and the second protective layer are spunlace nonwoven fabric layers.

[0011] According to some embodiments of the present invention, the first protective layer is selected from polyethylene terephthalate nonwoven fabric layer, polypropylene nonwoven fabric layer and polylactic acid nonwoven fabric layer; and / or, the second protective layer is selected from polyethylene terephthalate nonwoven fabric layer, polypropylene nonwoven fabric layer and polylactic acid nonwoven fabric layer.

[0012] According to some embodiments of the present invention, the thickness of the adsorption layer is D1, the thickness of the support layer is D2, the thickness of the first protective layer is D3, and the thickness of the second protective layer is D4, wherein D1, D2, D3 and D4 respectively satisfy: 0.1mm≤D1≤5mm, 0.01mm≤D2≤2mm, 0.01mm≤D3≤2mm, and 0.01mm≤D4≤2mm.

[0013] According to some embodiments of this utility model, the areal density of both the first protective layer and the second protective layer is Q1, wherein Q1 satisfies 20 g / m³. 2 ≤Q1≤120g / m 2 .

[0014] According to some embodiments of this utility model, Q1 further satisfies 55g / m 2 ≤Q1≤75g / m 2 .

[0015] According to some embodiments of the present invention, the pore size of the adsorption layer is D5, wherein D5 satisfies: 2mm≤D5≤2.5mm.

[0016] According to some embodiments of the present invention, the adsorption layer includes at least one of an activated carbon fiber layer, a molecular sieve layer, a zeolite layer, and an ion exchange resin layer.

[0017] According to some embodiments of this utility model, the adsorption layer is an activated carbon fiber layer, and the areal density of the adsorption layer is Q2, wherein Q2 satisfies: 50 g / m³ 2 ≤Q2≤400g / m 2 ; and / or, the specific surface area of ​​the adsorption layer is S2, wherein S2 satisfies: 500 m² / s². 2 / g≤S2≤3000m 2 / g.

[0018] According to some embodiments of this utility model, Q2 further satisfies: 150g / m 2≤Q2≤185g / m 2 ; and / or, S2 further satisfies: 1300m 2 / g≤S2≤1500m 2 / g.

[0019] According to some embodiments of the present invention, the support layer is a polypropylene nonwoven fabric layer or ES hot air cotton.

[0020] According to some embodiments of this utility model, the support layer is a polypropylene nonwoven fabric layer, and the areal density of the support layer is Q3, wherein Q3 satisfies: 20 g / m³. 2 ≤Q3≤30g / m 2 .

[0021] According to some embodiments of the present invention, the adsorption element further includes a sealing layer, which wraps around the adsorption layer, the support layer and the protective layer in the circumferential direction.

[0022] The preservation unit for a refrigeration device according to a second aspect embodiment of the present invention includes the adsorption element described in the first aspect embodiment of the present invention.

[0023] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0024] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of the adsorption element according to an embodiment of the present utility model; Figure 2 This is a schematic diagram of an adsorption element according to another embodiment of the present invention.

[0025] Figure label: 100: Adsorption component; 1: Adsorption layer; 2: Support layer; 3: First protective layer; 4: Second protective layer; 5: Sealing layer. Detailed Implementation

[0026] The following is for reference. Figures 1-2 The adsorption member 100 according to the first aspect of the present invention is described.

[0027] like Figures 1-2 As shown, the adsorption member 100 according to the first aspect of the present invention includes an adsorption layer 1, a support layer 2 and a protective layer.

[0028] Specifically, the support layer 2 is disposed on one side of the adsorption layer 1 in the thickness direction. The protective layer is disposed on the side of the support layer 2 away from the adsorption layer 1, or on the side of the adsorption layer 1 away from the support layer 2.

[0029] For example, in Figure 1 and Figure 2 In the example, a protective layer is provided on one side of the adsorption layer 1 along a direction away from the adsorption layer 1, or a support layer 2 and a protective layer are provided sequentially. The adsorption layer 1 can selectively capture, separate, or purify target substances (such as odors or moisture) through physical or chemical adsorption. The support layer 2, as a carrier of the adsorption layer 1, can be used to fix the adsorption layer 1, allowing it to adhere to the support layer 2, helping to ensure full contact between the fluid and the adsorption layer 1 and maximizing adsorption efficiency. The support layer 2 helps solve the problem of poor strength of the adsorption layer 1, ensuring the feasibility of all subsequent processes and the product yield, achieving efficient and stable processing of the adsorption layer 1. The protective layer protects the support layer 2 and the adsorption layer 1, isolating them from external physical impacts (such as collisions and compression) and dust and impurities, preventing contamination or structural damage to the adsorption layer 1, and extending the service life of the adsorption component 100.

[0030] The protective layer can be located on the side of the support layer 2 away from the adsorption layer 1, or on the side of the adsorption layer 1 away from the support layer 2. In practical use, the side of the adsorption layer 1 away from the protective layer can be adhered to and fixed to the surface of other components to isolate the side of the adsorption layer 1 away from the protective layer from physical impacts or contamination; or the side of the support layer 2 away from the protective layer can be adhered to and fixed to the surface of other components to isolate the side of the adsorption layer 1 away from the protective layer from physical impacts or contamination. Therefore, providing a protective layer on only one side of the adsorption layer 1 helps reduce the amount of protective layer used, thereby reducing the manufacturing difficulty and cost of the adsorption component 100.

[0031] This helps improve the mechanical properties and durability of the adsorption component 100, making its structure more stable and reducing the risk of stratification under the influence of environmental moisture. It effectively improves the adsorption performance of the adsorption component 100, such as its ability to adsorb odors or absorb moisture, and enhances its overall strength and durability. Furthermore, the adsorption component 100 has a relatively simple structure and can be produced continuously and automatically, resulting in high production efficiency and controllable costs.

[0032] According to the embodiments of the present invention, the adsorbent 100, by placing a protective layer on the side of the support layer 2 away from the adsorbent layer 1, or on the side of the adsorbent layer 1 away from the support layer 2, protects the support layer 2 and the adsorbent layer 1, isolating them from external physical impacts (such as collisions and compression) and dust and impurities, preventing the adsorbent layer 1 from being contaminated or structurally damaged. This effectively improves the adsorption performance of the adsorbent 100, such as its ability to adsorb odors or moisture, and enhances the overall strength and durability of the adsorbent 100. Furthermore, the single-sided placement of the protective layer on the adsorbent layer 1 reduces the amount of protective layer used, thereby helping to lower the manufacturing difficulty and cost of the adsorbent 100.

[0033] According to some embodiments of this utility model, refer to Figure 1 and Figure 2 The protective layer includes a first protective layer 3 and a second protective layer 4. The first protective layer 3 is located on the side of the support layer 2 away from the adsorption layer 1, and the second protective layer 4 is located on the side of the adsorption layer 1 away from the support layer 2. The first protective layer 3 protects the side of the support layer 2 away from the adsorption layer 1, and the second protective layer 4 protects the side of the adsorption layer 1 away from the first protective layer 3, isolating it from external physical impacts (such as collisions and compression) and dust and impurities. The combined effect of the first protective layer 3 and the second protective layer 4 can effectively prevent the adsorption layer 1 from being contaminated or structurally damaged. The simultaneous use of the second protective layer 4 and the first protective layer 3 can effectively block internal and external contaminants, protect the middle adsorption layer 1, make the adsorption performance of the adsorption layer 1 more durable, and further extend the service life of the adsorption component 100. The material and processing technology of the second protective layer 4 can be exactly the same as or different from that of the first protective layer 3. The second protective layer 4 and the first protective layer 3 are arranged opposite each other on both sides of the thickness direction of the adsorption layer 1, forming bidirectional symmetrical or asymmetrical protection.

[0034] Furthermore, both the first protective layer 3 and the second protective layer 4 are breathable layers that are waterproof and / or oil-proof and / or dustproof. Thus, the first protective layer 3 and the second protective layer 4 can have multiple functions, including breathability, waterproofing, oil resistance, and / or dustproofing.

[0035] Furthermore, the first protective layer 3 and the second protective layer 4 can also be endowed with continuous antibacterial properties through finishing agents to meet high hygiene standards. For example, the first protective layer 3 and the second protective layer 4 can use different weights or slightly different functional formulations (e.g., one of the first protective layer 3 and the second protective layer 4 has stronger antibacterial properties, while the other of the first protective layer 3 and the second protective layer 4 has stronger waterproof, oil-proof, and dustproof effects) to adapt to different usage scenarios and needs.

[0036] Optionally, the first protective layer 3 and the second protective layer 4 can be dyed according to visual requirements, serving both decorative and waterproof, oil-proof, dustproof, antibacterial, and mildew-proof functions. The first protective layer 3 and the second protective layer 4 can be set to different colors. For example, the first protective layer 3 can be green, and the second protective layer 4 can be blue. In some applications, the color difference can be used to guide the correct orientation for installing the adsorption element 100.

[0037] Both the first protective layer 3 and the second protective layer 4 can be obtained by impregnation with a mixed finishing liquid containing waterproofing agent, oil-proofing agent, dust-proofing agent, antibacterial agent and mildew-proofing agent, followed by drying. For example, it can be made from a 60g / m 2 PET, after processing, can increase its basis weight to approximately 65 g / m³. 2 In the mixed finishing solution, waterproofing agents, oil-repellent agents, and dust-repellent agents can be modified formulations with reactive functional groups (fluorocarbon waterproofing agents containing hydroxyl groups, and organosilicon oil-repellent agents containing epoxy groups); antibacterial and antifungal agents are selected from active ingredients that can cross-link with the above functional groups (silver ion complexing agents with amino groups, and plant antifungal extracts containing carboxyl groups).

[0038] The lamination between the first protective layer 3 and the support layer 2, and the lamination between the second protective layer 4 and the adsorption layer 1, can be achieved by spraying adhesives, such as reactive adhesives containing isocyanate groups. Spraying adhesives allows the adhesive to partially penetrate into the fluffy adsorption layer 1, acting like an implanted "skeleton," significantly enhancing the tensile strength and dimensional stability of the adsorption layer 1, enabling it to withstand the tension of subsequent lamination processes without breaking or deforming.

[0039] The spray adhesive process can be replaced by other composite methods such as hot melt adhesive spraying and powder sintering, which can achieve local bonding and enhance the connection strength between the multi-layer structures of the adsorption component 100.

[0040] For example, when the spray adhesive is a reactive adhesive containing isocyanate groups, in the process sequence of impregnation-drying and layered composite of the adsorbent 100, the three-proof agent (waterproofing agent, oil-proofing agent, dust-proofing agent) and / or antibacterial agent undergoes an in-situ crosslinking reaction with the spray adhesive. Specifically, in the drying stage, the three-proof agent and / or antibacterial agent first crosslink to form a film on the fiber surface of the first protective layer 3 or the second protective layer 4; in the layered composite stage, the isocyanate groups of the spray adhesive further crosslink with the active functional groups of the three-proof agent and / or antibacterial agent in the first protective layer 3 or the second protective layer 4, so that the first protective layer 3 or the second protective layer 4-spray adhesive-adsorbent layer 1 forms a continuous chemical crosslinking network.

[0041] This design ensures that the waterproof, oil-proof, and dust-proof components of the first protective layer 3 or the second protective layer 4 are not simply attached to the fibers, but are anchored to the overall composite structure (adsorbent) through chemical bonds. Even under long-term exposure to humidity fluctuations inside the refrigerator, friction from fruits and vegetables, and microbial erosion, the components are not easily detached, achieving ultra-long durability of waterproof, oil-proof, dust-proof, and antibacterial properties.

[0042] Furthermore, the first protective layer 3 and the second protective layer 4 are non-woven fabric layers. The non-woven fabric is a three-dimensional porous network formed by randomly interwoven fibers, with a large specific surface area and uniform pore distribution, providing ample adsorption sites, suitable for air to pass through, thus facilitating adsorption by the adsorption layer 1. At the same time, the non-woven fabric component has good flexibility and high mechanical strength, making the non-woven fabric layer, as the first protective layer 3 and the second protective layer 4, beneficial for increasing cut adaptability, extending the protective lifespan, and thus prolonging the service life of the adsorption component 100.

[0043] Furthermore, the first protective layer 3 and the second protective layer 4 are spunlace nonwoven fabric layers. Spunlace nonwoven fabric layers have strong water and liquid absorption capacity, stable structure, and are environmentally friendly. Therefore, using spunlace nonwoven fabric layers as the first protective layer 3 and the second protective layer 4 helps to improve the applicability of the first protective layer 3 and the second protective layer 4 in environments with high humidity.

[0044] According to some embodiments of this utility model, the first protective layer 3 is selected from polyethylene terephthalate (PET), polypropylene (PP), and polylactic acid (PLA) nonwoven fabric layers; and / or, the second protective layer 4 is selected from polyethylene terephthalate (PET), polypropylene (PP), and polylactic acid (PLA). The PET, PP, and PLA films have inherent micropores or are modified with hydrophilicity to enhance waterproofness while retaining breathability, thereby facilitating the full utilization of the adsorption effect of the adsorption layer 1 in the adsorption element 100.

[0045] According to some specific embodiments of this utility model, refer to Figure 1 and Figure 2 The thickness of adsorption layer 1 is D1, where 0.1mm ≤ D1 ≤ 5mm. When the thickness of adsorption layer 1 is less than 0.1mm, the fibers are dense, resulting in limited adsorption capacity, which is insufficient to meet the adsorption requirements of adsorption element 100. When the thickness of adsorption layer 1 is greater than 5mm, it easily reduces the air permeability of adsorption element 100, thus reducing its adsorption effect. Therefore, limiting the thickness of adsorption layer 1 to the above range helps to ensure both the adsorption capacity of adsorption layer 1 and the adsorption effect of adsorption element 100.

[0046] The thickness of the support layer 2 is D2, where 0.01mm ≤ D2 ≤ 2mm. When the thickness of the support layer 2 is less than 0.01mm, the support strength of the support layer 2 for the adsorption layer 1 is low, which easily reduces the structural strength of the adsorption element 100. When the thickness of the support layer 2 is greater than 2mm, the thickness of the support layer 2 is large, which easily increases the volume of the adsorption element 100 and reduces its air permeability. Therefore, by limiting the thickness of the support layer 2 within the above range, it is beneficial to ensure the support or carrier function of the support layer 2 for the adsorption element 100, while also ensuring the air permeability of the adsorption element 100 and improving its adsorption performance.

[0047] The thickness of the first protective layer 3 is D3, where 0.01mm ≤ D3 ≤ 2mm. When the thickness of the first protective layer 3 is less than 0.01mm, its structure is easily damaged, thus reducing its protective ability against the support layer 2 and the adsorption layer 1. When the thickness of the first protective layer 3 is greater than 2mm, its large thickness weakens the adsorption effect of the adsorption element 100, increases the volume of the adsorption layer 1, and thus reduces the applicability of the adsorption element 100. Therefore, limiting the thickness of the first protective layer 3 to the above range helps improve the protective performance against the support layer 2 and the adsorption layer 1, while also minimizing the volume of the adsorption element 100 and improving its applicability.

[0048] The thickness of the second protective layer 4 is D4, where 0.01mm ≤ D4 ≤ 2mm. When the thickness of the second protective layer 4 is less than 0.01mm, its structure is easily damaged, thus reducing its protective ability against the support layer 2 and the adsorption layer 1. When the thickness of the second protective layer 4 is greater than 2mm, its thickness is too large, which weakens the adsorption effect of the adsorption element 100, increases the volume of the adsorption layer 1, and thus reduces the applicability of the adsorption element 100. Therefore, limiting the thickness of the second protective layer 4 to the above range helps to improve the protective performance against the support layer 2 and the adsorption layer 1, while also minimizing the volume of the adsorption element 100 and improving its applicability.

[0049] According to some embodiments of this utility model, the areal density of both the first protective layer 3 and the second protective layer 4 is Q1, and Q1 satisfies 20 g / m³. 2 ≤Q1≤120g / m 2 Within the aforementioned areal density range, the structural strength of the first protective layer 3 and the second protective layer 4 is suitable for meeting the needs of stabilizing and protecting the adsorption layer 1 and the support layer 2, while the porosity of the first protective layer 3 and the second protective layer 4 is also suitable for meeting the needs of gas passage, so as to ensure that the performance of the adsorption element 100 can meet the usage requirements of the adsorption element 100.

[0050] Furthermore, Q1 further meets the requirement of 55g / m 2 ≤Q1≤75g / m 2 The areal density of the first protective layer 3 and the second protective layer 4 is superior within the above-mentioned range.

[0051] According to some embodiments of this utility model, the pore size of the adsorption layer 1 is D5, wherein D5 satisfies: 2mm ≤ D5 ≤ 2.5mm. When the pore size of the adsorption layer 1 is less than 2mm, the adsorption layer 1 is easily blocked by larger molecules, reducing the service life of the adsorption element 100; when the pore size of the adsorption layer 1 is greater than 2.5mm, the pore size of the adsorption layer 1 is too large, resulting in poor adsorption capacity for small molecules or weak fine adsorption capacity. Therefore, the pore size of the adsorption layer 1 is more reasonable, which is conducive to meeting the adsorption needs of the adsorption element 100, improving the odor adsorption capacity of the adsorption element 100, and extending the service life of the adsorption element 100.

[0052] According to some embodiments of this utility model, the adsorption layer 1 includes at least one of an activated carbon fiber layer, a molecular sieve layer, a zeolite layer, and an ion exchange resin layer. The activated carbon fiber layer focuses on broad-spectrum and rapid adsorption of organic pollutants; the molecular sieve layer emphasizes precise shape-selective adsorption and high-temperature stability; the zeolite layer excels in large-capacity, weather-resistant adsorption; and the ion exchange resin layer focuses on ion-level targeted adsorption and is regenerable.

[0053] For example, 165g / m 2 Specific surface area up to 1400m² 2 Composed of fluffy activated carbon fibers, molecular sieves, zeolite, and ion exchange resin, it is responsible for the core functions of odor adsorption and humidity buffering.

[0054] Furthermore, adsorption layer 1 is an activated carbon fiber layer, and the areal density of adsorption layer 1 is Q2, wherein Q2 satisfies: 50 g / m³ 2 ≤Q2≤400g / m 2 Within the aforementioned areal density range, the adsorption layer 1 exhibits high structural strength, which facilitates repeated use and thus extends the service life of the adsorption element 100. Simultaneously, the porosity of the adsorption layer 1 is suitable for meeting the gas passage requirements, resulting in a large adsorption capacity and high adsorption efficiency.

[0055] The specific surface area of ​​adsorption layer 1 is S2, where S2 satisfies: 500 m² / s². 2 / g≤S2≤3000m 2 / g. The specific surface area of ​​adsorption layer 1 is within the above range. The more adsorption sites there are, the higher the selective adsorption efficiency for odor adsorption and humidity buffering.

[0056] Furthermore, Q2 further meets the following requirement: 150g / m 2 ≤Q2≤185g / m 2 ; and / or, S2 further satisfies: 1300m 2 / g≤S2≤1500m 2 / g.

[0057] According to some other embodiments of this utility model, the support layer 2 is a polypropylene nonwoven fabric layer or ES hot air cotton (i.e., core-sheath type bicomponent fiber). The polypropylene nonwoven fabric layer has strong processing adaptability, high cost-effectiveness, stable performance, and does not interfere with the adsorption layer 1 and the adjacent first protective layer 3. For example, a 25g / m³ layer can be used. 2 PP. ES hot air cotton has high porosity and a fluffy structure, good air permeability, and balances fluffiness and structural stability. Therefore, ES hot air cotton, as the support layer 2, can support the adsorption layer 2 while reducing the impact on the performance of the adsorption layer 2.

[0058] Optionally, the support layer 2 can be other thin nonwoven materials or mesh fabrics. No specific limitations are made here.

[0059] Furthermore, the support layer 2 is a polypropylene nonwoven fabric layer, and the areal density of the support layer 2 is Q3, wherein Q3 satisfies: 20 g / m³. 2 ≤Q3≤30g / m 2 The areal density of the support layer 2 is limited to the above-mentioned range, which is beneficial for supporting the adsorption layer 1 while ensuring that the substance to be adsorbed can pass through the pores of the support layer 2, thereby ensuring that the adsorption element 100 can complete odor adsorption and dehumidification.

[0060] According to some other embodiments of the present invention, referring to Figure 1 and Figure 2 The adsorption component 100 also includes a sealing layer 5, which wraps around the adsorption layer 1, the support layer 2, and the protective layer in the circumferential direction. For example, in the actual preparation process, a custom die can be used to punch out the required appearance of the adsorption component 100, and then a sealing adhesive such as 705 emulsion can be applied to the cross-section of the punched product. After curing, the sealing layer 5 is formed, which helps to fundamentally reduce the risk of activated carbon fibers and other materials falling off in the adsorption layer 1, thereby improving the cleanliness and safety of the adsorption component 100.

[0061] In summary, the adsorption element 100 of this application has the following beneficial effects: Structural innovation: A specific layered structure was designed with a bidirectional symmetrical first protective layer 3 and second protective layer 4, an intermediate support layer 2, and an adsorption layer 1 with high adsorption performance, and a fully enclosed functional system was formed by sealing the cross-section edges.

[0062] Innovation in functional integration: Through the impregnation process, the first protective layer 3 and the second protective layer 4 on both sides achieve waterproof, oil-proof, dustproof and / or antibacterial and mildew-proof functions in one, realizing the deep integration of multiple functions on a single material.

[0063] Optionally, based on the core four-layer structure, an extremely thin TPU film or PE film with an aesthetically pleasing texture can be laminated on the side of the first protective layer 3 away from the adsorption layer 1 to further enhance the surface texture and ease of cleaning.

[0064] According to a second aspect embodiment of the present invention, a preservation unit for a refrigeration device (not shown) includes the adsorption member 100 described in the first aspect embodiment of the present invention. For example, the preservation unit may be box-shaped, and the adsorption member 100 may be disposed on the lid of the preservation unit or at the opening of the preservation unit, thereby enabling the preservation and storage of food stored in the preservation unit.

[0065] According to the embodiments of the present invention, the preservation unit for a refrigeration device, by employing the above-mentioned adsorption member 100, helps to improve the adsorption performance of the preservation unit for the refrigeration device and extend the service life of the preservation unit for the refrigeration device.

[0066] Other configurations and operations of the preservation unit for the refrigeration device according to the embodiments of the present invention are known to those skilled in the art and will not be described in detail here.

[0067] In the description of this utility model, it should be understood that the terms "center", "thickness", "upper", "lower", "inner", "outer", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0068] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0069] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0070] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An adsorption element, characterized in that, include: Adsorption layer; A support layer is provided on one side of the adsorption layer in the thickness direction; A protective layer is disposed on the side of the support layer away from the adsorption layer, or on the side of the adsorption layer away from the support layer; The protective layer is a waterproof and / or oil-proof and / or dust-proof breathable layer.

2. The adsorption element according to claim 1, characterized in that, The protective layer includes: a first protective layer and a second protective layer; The first protective layer is disposed on the side of the support layer away from the adsorption layer, and the second protective layer is disposed on the side of the adsorption layer away from the support layer.

3. The adsorption element according to claim 2, characterized in that, The first protective layer and the second protective layer are non-woven fabric layers.

4. The adsorption element according to claim 2, characterized in that, The first protective layer and the second protective layer are spunlace nonwoven fabric layers.

5. The adsorption element according to claim 4, characterized in that, The first protective layer is selected from polyethylene terephthalate nonwoven fabric layer, polypropylene nonwoven fabric layer and polylactic acid nonwoven fabric layer; and / or, The second protective layer is selected from polyethylene terephthalate nonwoven fabric layer, polypropylene nonwoven fabric layer and polylactic acid nonwoven fabric layer.

6. The adsorption element according to claim 2, characterized in that, The thickness of the adsorption layer is D1, the thickness of the support layer is D2, the thickness of the first protective layer is D3, and the thickness of the second protective layer is D4. The thicknesses of D1, D2, D3, and D4 satisfy the following conditions: 0.1mm≤D1≤5mm, 0.01mm≤D2≤2mm, 0.01mm≤D3≤2mm, and 0.01mm≤D4≤2mm, respectively.

7. The adsorption element according to claim 4, characterized in that, The areal density of both the first protective layer and the second protective layer is Q1, wherein Q1 satisfies 20 g / m³. 2 ≤Q1≤120g / m 2 .

8. The adsorption element according to claim 7, characterized in that, The Q1 further satisfies 55g / m 2 ≤Q1≤75g / m 2 .

9. The adsorption element according to claim 1, characterized in that, The pore size of the adsorption layer is D5, wherein D5 satisfies: 2mm≤D5≤2.5mm.

10. The adsorption element according to any one of claims 1-9, characterized in that, The adsorption layer includes at least one of an activated carbon fiber layer, a molecular sieve layer, a zeolite layer, and an ion exchange resin layer.

11. The adsorption element according to claim 10, characterized in that, The adsorption layer is an activated carbon fiber layer, and the areal density of the adsorption layer is Q2, wherein Q2 satisfies: 50 g / m³ 2 ≤Q2≤400g / m 2 ; and / or, the specific surface area of ​​the adsorption layer is S2, wherein S2 satisfies: 500 m² / s². 2 / g≤S2≤3000m 2 / g.

12. The adsorption element according to claim 11, characterized in that, Q2 further satisfies: 150g / m 2 ≤Q2≤185g / m 2 ; and / or, S2 further satisfies: 1300m 2 / g≤S2≤1500m 2 / g.

13. The adsorption element according to any one of claims 1-9, characterized in that, The support layer is a polypropylene nonwoven fabric layer or ES hot air cotton.

14. The adsorption element according to claim 13, characterized in that, The support layer is a polypropylene nonwoven fabric layer, and the areal density of the support layer is Q3, wherein Q3 satisfies: 20 g / m³. 2 ≤Q3≤30g / m 2 .

15. The adsorption element according to claim 1, characterized in that, Also includes: A sealing layer that wraps around the adsorption layer, the support layer, and the protective layer in the circumferential direction.

16. A preservation unit for a refrigeration device, characterized in that, Includes the adsorption element as described in any one of claims 1-15.

Images