Sealing plug of atomization device and atomization device

Abstract

The utility model relates to the technical field of atomization equipment, in particular to a sealing plug of an atomization device and the atomization device. The sealing plug of the atomization device comprises a supporting core body; the blocking layer covers the outer part of the supporting core body and is used for blocking permeation of aroma components; the elastic sealing layer covers the outer part of the blocking layer and is used for being attached and sealed with the inner wall of a corresponding channel in the atomization device so as to block the channel; the blocking effect of the blocking layer on permeation of aroma components is larger than that of the elastic sealing layer. Due to the fact that the multi-layer composite structure comprising the supporting core body, the blocking layer and the elastic sealing layer is adopted, the blocking layer can block permeation of aroma components, loss of the aroma components is reduced, and the sealing effect of the sealing plug is improved.

Description

Technical Field

[0001] This application relates to the field of atomizing equipment technology, specifically to a sealing plug for an atomizing device and an atomizing device. Background Technology

[0002] Atomizing devices typically contain an aerosol matrix for generating aerosols. Some aerosol matrices contain aroma components composed of fragrances and flavorings, which are easily degraded due to volatilization, oxidation, and other reasons.

[0003] Therefore, when storing atomizing devices, silicone plugs are used to seal both ends of the atomizing device's mouthpiece and air inlet to reduce the release of aroma components. However, some aroma components will still seep out and escape from the atomizing device, indicating that the sealing effect is somewhat lacking. Utility Model Content

[0004] In order to improve the sealing effect of the sealing plug and reduce the loss of aroma components, this application provides a sealing plug for an atomizing device and an atomizing device.

[0005] According to a first aspect, one embodiment provides a sealing plug for an atomizing device, comprising:

[0006] Support core;

[0007] A barrier layer, covering the outside of the support core, is used to block the penetration of aroma components;

[0008] And an elastic sealing layer, which covers the outside of the barrier layer, is used to fit and seal against the inner wall of the corresponding channel in the atomizing device to block the channel;

[0009] The barrier layer has a greater effect on preventing the penetration of aroma components than the elastic sealing layer.

[0010] In one embodiment, the barrier layer is made of one or more of polyamide, ethylene vinyl alcohol copolymer, polyvinylidene chloride, and polyester.

[0011] In one embodiment, the thickness of the barrier layer is not less than 2 μm.

[0012] In one embodiment, the thickness of the barrier layer is 2 μm to 5 μm.

[0013] In one embodiment, the barrier layer is a composite barrier layer, which includes at least two sub-layers arranged sequentially from the inside out.

[0014] In one embodiment, the elastic sealing layer is made of polyolefin elastomer, and the hardness range of the elastic sealing layer is 50 Shore A-85 Shore A.

[0015] In one embodiment, the elastic sealing layer has a first protrusion that protrudes toward the side opposite to the barrier layer, and the first protrusion is provided at least one, and the first protrusion is arranged in a ring around the circumference of the elastic sealing layer.

[0016] In one embodiment, the barrier layer has a second protrusion corresponding to the first protrusion; and / or, the support core has a third protrusion corresponding to the first protrusion;

[0017] The cross-section of the second protrusion and / or the third protrusion has a tapered tip portion, which is located on the side close to the first protrusion.

[0018] In one embodiment, the support core includes a main body portion and an enlarged diameter portion, the diameter of the enlarged diameter portion being larger than the diameter of the main body portion, and the barrier layer having an enlarged diameter covering portion that wraps around the outer peripheral surface of the enlarged diameter portion.

[0019] According to a second aspect, one embodiment provides an atomizing device, comprising:

[0020] The device host, which stores an aerosol matrix, has a channel;

[0021] And the sealing plug described in any of the above embodiments, wherein the sealing plug is disposed at the inlet end and the outlet end of the channel to seal the channel.

[0022] The sealing plug of the atomizing device according to the above embodiment adopts a multi-layer composite structure including a supporting core, a barrier layer and an elastic sealing layer. The supporting core and the elastic sealing layer work together to help perform the basic sealing function, while the barrier layer with strong barrier performance can block the penetration of aroma components, thereby reducing the loss of aroma components and helping to improve the sealing effect of the sealing plug. Attached Figure Description

[0023] Figure 1 A schematic cross-sectional view of the sealing plug of an atomizing device according to one embodiment;

[0024] Figure 2 A cross-sectional schematic diagram of the sealing plug of an atomizing device according to another embodiment;

[0025] Figure 3 This is a schematic diagram of the sealing plug of an atomizing device according to one embodiment.

[0026] In the diagram, 100 is the supporting core; 110 is the third protrusion; 120 is the enlarged diameter section; and 130 is the main body.

[0027] 200, Barrier layer; 210, Sublayer; 220, Second protrusion; 230, Expanded diameter covering portion;

[0028] 300, elastic sealing layer; 310, first protrusion. Detailed Implementation

[0029] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments. Similar elements in different embodiments are referred to by related similar element reference numerals. In the following embodiments, many details are described to facilitate a better understanding of the present application. However, those skilled in the art will readily recognize that some features may be omitted in different situations, or may be replaced by other elements, materials, or methods. In some cases, certain operations related to the present application are not shown or described in the specification. This is to avoid obscuring the core parts of the present application with excessive description. For those skilled in the art, detailed description of these related operations is not necessary; they can fully understand the related operations based on the description in the specification and general technical knowledge in the art.

[0030] Furthermore, the features, operations, or characteristics described in the specification can be combined in any suitable manner to form various embodiments. At the same time, the steps or actions in the method description can be rearranged or adjusted in a manner obvious to those skilled in the art. Therefore, the various orders in the specification and drawings are only for the clear description of a particular embodiment and do not imply a necessary order, unless otherwise stated that a particular order must be followed.

[0031] The serial numbers assigned to components in this document, such as "first" and "second," are used only to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages).

[0032] Most atomizing devices are equipped with a storage chamber for storing aerosol matrix. Before leaving the factory, the atomizing device usually has the aerosol matrix pre-set in the storage chamber. Depending on the product type, the pre-set aerosol matrix can be a liquid aerosol matrix or a solid aerosol matrix.

[0033] As market demands for the flavor of aerosols produced by nebulizers increase, aroma components are widely added to the aerosol matrix. These aroma components can be composed of various flavorings and fragrances. However, because aroma components are prone to decay due to volatility and oxidation, such as ester components, some nebulizers use silicone plugs to seal both ends of channels such as the mouthpiece and air inlet, and then further seal the entire nebulizer with packaging bags such as capsules or aluminum foil bags.

[0034] While the above methods can help preserve the aroma components in the aerosol matrix, the silicone material of the silicone stopper has good permeability to fragrances and flavorings, resulting in some fragrances and flavorings escaping into the packaging bag during storage, causing aroma loss and a lack of sealing effect.

[0035] In this embodiment of the application, by providing a barrier layer 200 in the sealing plug that has a barrier effect on the penetration of aroma components, it is beneficial to block the penetration of aroma components, reduce loss, help improve the sealing effect of the sealing plug, and maintain the aroma and flavor of the aerosol matrix.

[0036] An embodiment of the sealing plug of the atomizing device in this application:

[0037] In one embodiment, please refer to Figures 1-3 The sealing plug includes a support core 100, a barrier layer 200, and an elastic sealing layer 300. The barrier layer 200 covers the outside of the support core 100 and blocks the penetration of aroma components. The elastic sealing layer 300 covers the outside of the barrier layer 200 and is used to seal against the inner wall of the corresponding channel in the atomizing device, thus blocking the channel. Furthermore, the barrier layer 200 has a greater blocking effect on the penetration of aroma components than the elastic sealing layer 300. This means that even if aroma components can penetrate through the outermost elastic sealing layer 300, they will be blocked by the barrier layer 200 and sealed within the original storage space, preventing them from dissipating and helping to maintain the aroma and flavor of the aerosol matrix.

[0038] In one embodiment, the sealing plug can be injection molded, i.e., firstly, a support core 100 is injection molded, then a second injection molding is performed to form a barrier layer 200 on the surface of the support core 100, and finally, a third injection molding is performed to form an elastic sealing layer 300 on the surface of the barrier layer 200. In other embodiments, the sealing plug can also be integrally molded by a co-extrusion process, or it can be formed layer by layer from the inside out using a lamination process or a hot melt bonding process.

[0039] The sealing plug can be used to seal channels in an atomizing device, which can be gas channels or liquid channels. For example, it can be used for gas inlets and outlets such as the nozzle and air inlet in the atomizing device, or for liquid inlets and outlets such as the injection port and liquid outlet in the atomizing device. Furthermore, these various inlets and outlets can be inlets and outlets on the atomizer, inlets and outlets on the power supply component, or inlets and outlets on the liquid storage container, etc.

[0040] The barrier layer 200, serving as the intermediate layer of the sealing plug, primarily utilizes its material to block the penetration of aroma components. In one embodiment, please refer to... Figure 1 The barrier layer 200 can be made of one of the following materials: polyamide, ethylene ethylene alcohol copolymer, polyvinylidene chloride, or polyester.

[0041] In another embodiment, the barrier layer 200 may also be a composite material consisting of multiple components of polyamide, ethylene vinyl alcohol copolymer, polyvinylidene chloride, and polyester, to further enhance its barrier properties. Those skilled in the art will understand that the composite method is not limited; for example, it may be obtained by co-extrusion of multiple materials.

[0042] In other embodiments, depending on the different components in the aroma composition, the barrier layer 200 may also be made of other materials that have a barrier effect on the penetration of aroma components.

[0043] In some embodiments, please refer to Figure 2 The barrier layer 200 can also be a composite barrier layer 200, which includes at least two sub-layers 210 arranged sequentially from the inside out. The different sub-layers 210 in the composite barrier layer 200 can be made of different materials. Utilizing the differences in barrier performance of the different sub-layers 210 in terms of their materials helps to comprehensively improve the barrier performance of the barrier layer 200. Furthermore, the differences in mechanical properties and gas barrier properties of the different sub-layers 210 materials can also be utilized to improve the barrier layer 200's performance in terms of mechanical strength and gas barrier properties.

[0044] For example, the composite barrier layer 200 can be formed of two sub-layers 210, wherein the inner sub-layer 210 can be made of polyamide and the outer sub-layer 210 can be made of ethylene-vinyl alcohol copolymer. The composite barrier layer 200 can be formed in one step using co-extrusion technology to ensure that the two layers are tightly bonded, which helps to avoid delamination or peeling.

[0045] In addition to its barrier properties against some aroma components, polyamide also has good mechanical strength and chemical resistance; while ethylene-vinyl alcohol copolymer has excellent gas and aroma barrier properties, especially against oxygen, carbon dioxide and other small molecule gases, which helps to effectively prevent the penetration and volatilization of fragrances and flavorings. Through the combination of the two sublayers 210, the barrier layer 200 can have both good barrier properties and mechanical properties, which helps to play a sealing role.

[0046] Those skilled in the art will understand that the thickness of the barrier layer 200 will also affect the barrier performance of the barrier layer 200. Therefore, in one embodiment, the thickness of the barrier layer 200 can be set to not less than 2μm so that the barrier performance of the barrier layer 200 meets the usage requirements.

[0047] In some embodiments, the thickness of the barrier layer 200 can be set to 2 μm to 5 μm to reduce the cost of the sealing plug while meeting the barrier performance requirements. In other embodiments, the thickness of the barrier layer 200 can also be adaptively adjusted according to the material used and the designed barrier performance requirements. For example, it can be set to a thickness of not less than 1 micrometer, such as 1 μm or 1.5 μm.

[0048] The support core 100 is located in the innermost layer of the sealing plug and can be understood as the structural foundation of the sealing plug. It is used to provide the necessary mechanical strength to ensure that the sealing plug can maintain its design shape during installation and use and avoid excessive deformation.

[0049] In one embodiment, the support core 100 can be made of a soft plastic material such as thermoplastic elastomer, which is not only easy to process and mold through processes such as injection molding and extrusion, but also has suitable flexibility and elasticity, allowing it to bend and deform without breaking, and to return to its original shape after the external force is removed, which is beneficial for sealing. For example, the support core 100 can be made of polyolefin elastomer.

[0050] In other embodiments, if the mechanical properties of the barrier layer 200 can reach or approach the mechanical properties of the support core 100, the support core 100 may be omitted if the design and usage requirements of the sealing plug are met.

[0051] The elastic sealing layer 300 is located on the outermost layer of the sealing plug and can be understood as the structural layer that mainly performs the function of adhesion and sealing. In one embodiment, the elastic sealing layer 300 can be made of polyolefin elastomer, and the hardness range of the elastic sealing layer 300 can be 50 Shore A-85 Shore A. This utilizes the softness and good conformability of the polyolefin elastomer to ensure a tight fit with the inner wall of the corresponding channel in the atomizing device during use, thus ensuring a good sealing effect on the channel. Furthermore, the elastic sealing layer 300 can also serve as a protective layer for the barrier layer 200, covering and protecting the barrier layer 200, helping to slow down the aging of the barrier layer 200 and extend the service life of the sealing plug.

[0052] In some embodiments, the hardness range of the elastic sealing layer 300 may also be 55 Shore A to 75 Shore A, such as 55 Shore A, 65 Shore A, or 75 Shore A. In other embodiments, the elastic sealing layer 300 may also be made of other materials or have other hardness ranges that meet design and usage requirements.

[0053] In one embodiment, please refer to Figures 1-3The elastic sealing layer 300 has a first protrusion 310 protruding towards the side opposite to the barrier layer 200. At least one first protrusion 310 is provided, and the first protrusion 310 is annular in the circumferential direction of the elastic sealing layer 300. By providing the first protrusion 310, a seal can be achieved by ensuring that the outer diameter of the first protrusion 310 is slightly larger than the inner diameter of the channel to be sealed, which helps to ensure the sealing effect and reduces the precision requirements for the sealing plug.

[0054] For example, the elastic sealing layer 300 is provided with two first protrusions 310 spaced apart along the axial direction of the sealing plug to form a double seal, thereby improving the sealing reliability of the sealing plug.

[0055] In one embodiment, the barrier layer 200 has a second protrusion 220 corresponding to the first protrusion 310, and the support core 100 has a third protrusion 110 corresponding to the first protrusion 310. By providing the second protrusion 220 and the third protrusion 110, it not only helps to improve the interlocking structure formed between the support core 100, the barrier layer 200 and the elastic sealing layer 300, thereby improving the bonding strength and reducing the risk of peeling, but also facilitates the molding of the first protrusion 310.

[0056] In some further embodiments, the cross-sections of the second protrusion 220 and the third protrusion 110 both have a tapered tip, located on the side close to the first protrusion 310. The angle of the tapered tip helps to improve the limiting effect and further enhances the bonding strength between the support core 100, the barrier layer 200, and the elastic sealing layer 300. In different embodiments, the surface of the tapered tip can be a flat surface or a curved surface.

[0057] In other embodiments, the third protrusion 110 on the support core 100 or the second protrusion 220 on the barrier layer 200 may be omitted as needed.

[0058] Those skilled in the art will understand that the specific shape of the sealing plug is not limited. In one embodiment, please refer to... Figures 1-3 The support core 100 includes a main body portion 130 and an enlarged diameter portion 120. The diameter of the enlarged diameter portion 120 is larger than the diameter of the main body portion 130. The barrier layer 200 may have an enlarged diameter covering portion 230 that wraps around the outer peripheral surface of the enlarged diameter portion 120, so that the cross-section of the sealing plug is T-shaped or approximately T-shaped, which helps to improve the sealing effect. In different embodiments, the enlarged diameter portion 120 may be formed by circumferentially expanding the support core 100, or it may be formed by expanding outward in one or more limited directions.

[0059] In another embodiment, the support core 100 may also be cylindrical, so that the sealing plug is a cylindrical sealing plug.

[0060] Examples of the atomizing device in this application:

[0061] In one embodiment, the atomizing device includes a main unit and a sealing plug as described in any of the above embodiments. The main unit stores an aerosol matrix and has a channel. The sealing plug can be placed at the inlet and outlet ends of the channel to seal the channel.

[0062] For example, the device main unit has a channel including a gas channel, with an air inlet at the inlet end and a mouthpiece at the outlet end. There are two sealing plugs, one of which is inserted into the air inlet and the other is inserted into the mouthpiece to seal the gas channel of the device main unit, thereby limiting the loss of aroma components of the aerosol matrix in the atomizing device to the outside of the atomizing device and maintaining the aroma and flavor of the aerosol matrix.

[0063] The present application will be further described in detail below through specific experimental procedures and experimental data examples. The following examples are for further illustration only and should not be construed as limiting the present application. In these examples, unless otherwise specified, all reagents and instruments used are commercially available, and all experimental operations are performed in accordance with product instructions and standard experimental procedures.

[0064] Example 1:

[0065] The sealing plug in Example 1 is the sealing plug in this application, wherein the supporting core 100 is made of polyolefin elastomer material with a hardness of 65 Shore A; the barrier layer 200 is made of ethylene vinyl alcohol copolymer material with a thickness of 2.5 μm; and the elastic sealing layer 300 is also made of polyolefin elastomer material with a hardness of 65 Shore A.

[0066] Comparative Example 1:

[0067] The sealing plug in Comparative Example 1 is a commercially available single-material sealing plug made of silicone with a hardness of 65 Shore A.

[0068] Experimental method: Prepare an aerosol matrix with aroma components, and determine the content of ethyl acetate and ethyl butyrate in the aerosol matrix using the same standard method, and record the results.

[0069] Prepare atomizing devices of the same model and batch, inject equal amounts of aerosol matrix into each prepared atomizing device, and then randomly divide the atomizing devices into two experimental groups.

[0070] The air inlet and nozzle of one set of atomizing devices were sealed with the sealing plug of Example 1, and the air inlet and nozzle of another set of atomizing devices were sealed with the sealing plug of Comparative Example 1. Both sets of atomizing devices sealed with the sealing plugs were stored in the same environment at 50°C for 7 days. After the storage period, the ethyl acetate and ethyl butyrate content of the aerosol matrix in the atomizing devices were measured again, and the average value of each set of results was recorded.

[0071] Experimental results are shown in the table below.

[0072] Types of aerosol matrices Ethyl acetate content (mg / kg) Ethyl butyrate content (mg / kg) Original aerosol matrix before experiment 4345.33 14572.76 Experimental Group 1 (as described in Example 1) 4123.45 13075.28 Comparative Example 1 after the experiment corresponds to the experimental group 3124.94 9820.33

[0073] As shown in the table above, after comparing the contents of ethyl acetate and ethyl butyrate in the aerosol matrix of the two experimental groups, the remaining contents of the experimental group using the sealing plug of Example 1 were significantly higher than those of the experimental group using the sealing plug of Comparative Example 1. This indicates that the sealing plug of Example 1 has a better sealing effect and a stronger barrier effect against the penetration and loss of aroma components in the aerosol matrix, which is beneficial to maintaining the aroma and flavor of the aerosol matrix.

[0074] The above examples illustrate this application only to aid understanding and are not intended to limit its scope. Those skilled in the art to which this application pertains can make various simple deductions, modifications, or substitutions based on the ideas presented.

Claims

1. A sealing plug for an atomizing device, characterized in that, include: Support core; A barrier layer, covering the outside of the support core, is used to block the penetration of aroma components; And an elastic sealing layer, which covers the outside of the barrier layer, is used to fit and seal against the inner wall of the corresponding channel in the atomizing device to block the channel; The barrier layer has a greater effect on preventing the penetration of aroma components than the elastic sealing layer.

2. The sealing plug as described in claim 1, characterized in that, The barrier layer is made of one of the following materials: polyamide, ethylene vinyl alcohol copolymer, polyvinylidene chloride, and polyester.

3. The sealing plug as described in claim 1, characterized in that, The thickness of the barrier layer is not less than 2 μm.

4. The sealing plug as described in claim 3, characterized in that, The thickness of the barrier layer is 2 μm to 5 μm.

5. The sealing plug as described in any one of claims 1 to 4, characterized in that, The barrier layer is a composite barrier layer, which includes at least two sub-layers arranged sequentially from the inside to the outside.

6. The sealing plug as described in any one of claims 1 to 4, characterized in that, The elastic sealing layer is made of polyolefin elastomer, and its hardness ranges from 50 Shore A to 85 Shore A.

7. The sealing plug as described in any one of claims 1 to 4, characterized in that, The elastic sealing layer has a first protrusion that protrudes toward the side opposite to the barrier layer, and at least one of the first protrusions is provided. The first protrusion is arranged in a ring around the circumference of the elastic sealing layer.

8. The sealing plug as claimed in claim 7, characterized in that, The barrier layer has a second protrusion corresponding to the first protrusion; and / or, the support core has a third protrusion corresponding to the first protrusion; The cross-section of the second protrusion and / or the third protrusion has a tapered tip portion, which is located on the side close to the first protrusion.

9. The sealing plug as described in any one of claims 1 to 4, characterized in that, The supporting core includes a main body and an enlarged diameter portion, the diameter of which is larger than the diameter of the main body, and the barrier layer has an enlarged diameter covering portion that wraps around the outer peripheral surface of the enlarged diameter portion.

10. An atomizing device, characterized in that, include: The device host, which stores an aerosol matrix, has channels; And a sealing plug according to any one of claims 1 to 9, the sealing plug being disposed at the inlet end and the outlet end of the channel to close the channel.

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