Oil guide body, atomization assembly and electronic atomization device

Abstract

The utility model discloses an oil guide body, an atomization assembly and an electronic atomization device.The oil guide body comprises a porous base body, a first electrode and a second electrode, the sealing coating is at least partially arranged on the surface of the porous matrix, and the sealing coating is of a structure which is impermeable to fluid and can be decomposed when being heated. Due to the fact that the fluid-impermeable sealing coating is arranged on the surface of the porous base body, before the electronic atomization device is used, the sealing coating can prevent atomized liquid from seeping out of the surface of the porous base body, and therefore the phenomenon that the atomized liquid seeping out of the surface of the porous base body is reduced. Wherein the sealing coating is of a structure capable of being decomposed by heating, and when a user uses the electronic atomization device for the first time, the heating body used for heating the atomization liquid supplied by the atomization liquid storage cavity can heat and decompose the sealing coating, so that it is guaranteed that the sealing coating does not affect the flow guide performance of the porous base body, and the electronic atomization device can be normally used.

Description

Technical Field

[0001] The present application relates to the technical field of electronic atomization, and in particular to an oil guide body, an atomization component and an electronic atomization device. Background Art

[0002] As a substitute for traditional cigarettes, the electronic atomizer device usually includes a hollow shell and a power supply device and an atomizer assembly arranged inside the shell. The atomizer assembly usually includes an oil guide body and a heating element. The power supply device is used to supply power to the heating element. The shell is also provided with an atomizer channel and a liquid storage chamber for supplying atomized liquid to the atomizer assembly (the side wall of the atomizer channel has an oil inlet hole connected to the liquid storage chamber, the atomizer assembly is arranged in the atomizer channel and located at the oil inlet hole, and the oil inlet hole is used to guide the atomized liquid in the liquid storage chamber to the oil guide body), the oil guide body is used to guide the atomized liquid supplied by the liquid storage chamber to the heating element, and the heating element is used to heat the atomized liquid supplied by the atomizer storage chamber to form an inhalable aerosol leading to the atomizer channel. Compared with traditional cigarettes, the electronic atomizer device has the advantages of no tar, no ash, no open flame, etc., which can effectively avoid the various harmful substances produced by traditional cigarettes when they are ignited.

[0003] Among them, the assembled electronic atomization device needs to inject atomizing liquid into the liquid storage chamber. During this process and the subsequent storage and transportation links, since the atomizing liquid in the liquid storage chamber can contact the oil guide body through the oil inlet hole, there is a situation where the atomizing liquid seeps out from the surface of the oil guide body and forms a leakage that flows into the atomization channel. Therefore, there is a problem that the leakage flows to the electronic components, causing damage to electronic components such as circuit boards or microphones and making the electronic atomization device unable to work normally. Utility Model Content

[0004] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes an oil guide body, an atomization assembly and an electronic atomization device.

[0005] The oil-conducting body according to the first aspect of the present application is used in an electronic atomization device and includes: a porous substrate; a sealing coating, wherein the surface of the porous substrate is at least partially provided with the sealing coating, and the sealing coating is a structure that is impermeable to fluid and decomposable by heating.

[0006] The oil-conducting body according to the embodiment of the present application has at least the following beneficial effects: since a fluid-impermeable sealing coating is provided on the surface of the porous substrate, the sealing coating can prevent the atomized liquid from seeping through the surface of the porous substrate before the electronic atomization device is used, thereby helping to reduce the phenomenon of atomized liquid seeping through the surface of the porous substrate. The sealing coating is a structure that can be decomposed by heating. When the user uses the electronic atomization device for the first time, the heating element used to heat the atomized liquid supplied by the atomization liquid storage chamber can heat and decompose the sealing coating to ensure that the sealing coating does not affect the flow-conducting performance of the porous substrate, so that the electronic atomization device can be used normally.

[0007] According to some embodiments of the present application, the decomposition temperature of the sealing coating is 60°C to 120°C.

[0008] According to some embodiments of the present application, the thickness of the sealing coating is less than or equal to 0.5 mm.

[0009] According to some embodiments of the present application, the porous matrix has a liquid absorption surface, an atomization surface, and a connecting surface connecting the liquid absorption surface and the atomization surface, wherein at least one of the liquid absorption surface, the atomization surface, and the connecting surface is provided with the sealing coating.

[0010] According to some embodiments of the present application, the porous matrix is ​​made of hard and / or soft porous material.

[0011] According to some embodiments of the present application, the porous matrix includes a hard porous body and a soft porous body, one side of the hard porous body is the atomization surface, the soft porous body is arranged on the side of the hard porous body facing away from the atomization surface, and the side of the soft porous body facing away from the hard porous body is the liquid absorption surface.

[0012] According to some embodiments of the present application, the porous matrix is ​​a columnar structure, and the porous matrix has an avoidance channel running through both ends along its own axial direction. One of the inner surface of the avoidance channel and the outer peripheral surface of the porous matrix is ​​the liquid absorption surface, and the other is the atomization surface. The two end surfaces of the porous matrix along its own axial direction are the connecting surfaces, and the two end surfaces of the porous matrix along its own axial direction are both provided with the sealing coating.

[0013] According to some embodiments of the present application, the sealing coating is only disposed on the edge region of the porous substrate.

[0014] According to some embodiments of the present application, the maximum distance that the sealing coating extends from the edge of the porous substrate to the middle of the porous substrate is D, where D≤2 mm.

[0015] According to some embodiments of the present application, the entire surface of the porous substrate is provided with the sealing coating.

[0016] According to some embodiments of the present application, the sealing coating is made of PVB or sodium alginate.

[0017] According to the atomization assembly of the second embodiment of the present application, it includes a heating element and an oil guide body according to the first embodiment of the present application, wherein the porous matrix of the oil guide body has an atomization surface, and the heating element is arranged on the atomization surface.

[0018] According to the electronic atomization device of the third aspect embodiment of the present application, it includes the atomization assembly according to the above-mentioned second aspect embodiment of the present application, and the electronic atomization device also includes a shell, in which a liquid storage chamber and an atomization channel are arranged, and the atomization assembly is at least partially arranged in the atomization channel. The heating element is connected to the fluid of the liquid storage chamber through the porous matrix. The heating element can heat the atomization liquid flowing from the liquid storage chamber to the porous matrix to the atomization temperature to form an aerosol in the atomization channel. The heating element can also heat the sealing coating to a decomposition temperature, wherein the decomposition temperature is lower than the atomization temperature.

[0019] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0021] Figure 1 is a cross-sectional schematic diagram of an electronic atomization device according to an embodiment of the present application;

[0022] Figure 2 yes Figure 1 A partial enlarged schematic diagram in the middle;

[0023] Figure 3 It is a structural schematic diagram of an atomization component in an electronic atomization device according to an embodiment of the present application;

[0024] Figure 4 yes Figure 3 A schematic diagram of the structure from another perspective of the structure shown;

[0025] Figure 5 It is a schematic diagram of the structure of an electronic atomization device in an embodiment of the present application, in which the soft porous body is a straight cotton and is in an unfolded state;

[0026] Figure 6 It is a schematic structural diagram of an electronic atomization device in an embodiment of the present application, in which the soft porous body is a cross cotton and is in an unfolded state;

[0027] Figure 7 It is a schematic structural diagram of an atomization assembly when a sealing coating is provided only at the edge of a porous substrate in an electronic atomization device according to an embodiment of the present application.

[0028] Reference numerals:

[0029] The housing 100 , the liquid storage chamber 110 , the atomization channel 120 , the oil guide body 200 , the porous matrix 210 , the hard porous body 211 , the soft porous body 212 , and the sealing coating 220 . DETAILED DESCRIPTION

[0030] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0031] In the description of the present application, it should be understood that if orientation descriptions are involved, the orientations or positional relationships indicated, such as up, down, front, back, left, and right, are based on the orientations or positional relationships shown in the accompanying drawings. This is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be understood as a limitation on the present application.

[0032] In the description of this application, if the words "some", "greater than", "less than", "exceed", "above", "below", "within" etc. appear, "some" means one or more, "more" means more than two, "greater than", "less than", "exceed", etc. are understood to exclude the number, and "above", "below", "within", etc. are understood to include the number.

[0033] In the description of this application, if the words "first", "second", etc. appear, they are only used to distinguish technical features and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0034] In the description of this application, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in this application based on the specific content of the technical solution.

[0035] Reference Figures 1 to 7According to the electronic atomization device of the embodiment of the present application, it includes a housing 100 and an atomization assembly. The housing 100 is provided with a liquid storage chamber 110 and an atomization channel 120. The liquid storage chamber 110 is used to supply atomized liquid to the atomization assembly. The atomization assembly is at least partially disposed in the atomization channel 120 and is in fluid communication with the liquid storage chamber 110. Specifically, the atomization assembly includes an oil guide body 200 and a heating element (not shown in the figure) disposed on the oil guide body 200. The oil guide body 200 is used to guide the atomized liquid supplied by the liquid storage chamber 110 to the heating element. The heating element is used to heat the atomized liquid supplied by the atomization liquid storage chamber 110 to form an inhalable aerosol leading to the atomization channel 120.

[0036] The oil-conducting body 200 includes a porous matrix 210 and a sealing coating 220. The porous matrix 210 is used to absorb the atomized liquid in the liquid storage chamber 110 and transfer it to the heating body for heating and atomization. The surface of the porous matrix 210 is at least partially provided with a sealing coating 220. The sealing coating 220 is a structure that is impermeable to fluid and decomposable by heating. Specifically, the heating body is in fluid communication with the liquid storage chamber 110 through the porous matrix 210.

[0037] Since a fluid-impermeable sealing coating 220 is provided on the surface of the porous substrate 210, before the electronic atomization device is used, the sealing coating 220 can prevent the atomized liquid from seeping through the surface of the porous substrate 210, thereby helping to reduce the phenomenon of the atomized liquid seeping through the surface of the porous substrate 210. Among them, the sealing coating 220 is a structure that can be decomposed by heating. When the user uses the electronic atomization device for the first time, the heating element used to heat the atomized liquid supplied by the atomization liquid storage chamber 110 can heat and decompose the sealing coating 220 to ensure that the sealing coating 220 does not affect the flow conductivity of the porous substrate 210, so that the electronic atomization device can be used normally. In some embodiments, the atomization temperature of the heating element of the atomization component to heat the atomized liquid to atomize can be greater than the decomposition temperature of the sealing coating 220. Specifically, the atomization temperature of the atomized liquid can be 2 to 3 times the decomposition temperature of the sealing coating 220. Among them, the decomposition temperature of the sealing coating 220 is lower than the lowest atomization temperature of each component of the atomizing liquid. When the user uses the electronic atomizing device for the first time, the sealing coating 220 can be heated and decomposed by the heating body before the atomizing liquid is heated and atomized by the heating body, thereby preventing the sealing coating 220 from obstructing the formed aerosol from passing to the atomization channel 120.

[0038] It should be noted that, in some other embodiments, the decomposition temperature of the sealing coating 220 may also be lower than the average atomization temperature of each component of the atomizing liquid. When the user uses the electronic atomizing device for the first time, the sealing coating 220 can be quickly heated and decomposed by the heating element, thereby helping to reduce or eliminate the obstruction of the sealing coating 220 to the formed aerosol. This is not limited here.

[0039] It should be noted that, in some other embodiments, the decomposition temperature of the sealing coating 220 may also be lower than the corresponding median atomization temperature of the atomization temperatures of the components of the atomizing liquid. When the user uses the electronic atomization device for the first time, the sealing coating 220 can be quickly heated and decomposed by the heating element, thereby helping to reduce or eliminate the obstruction of the sealing coating 220 to the aerosol formed. This is not limited here.

[0040] It should be noted that in some of the embodiments, the decomposition temperature of the sealing coating 220 is 60°C to 120°C. Specifically, the decomposition temperature of the sealing coating 220 can be 60°C, 120°C, 100°C, or other values ​​within the above numerical range, which are not limited here.

[0041] It should be noted that in some of the embodiments, the thickness of the sealing coating 220 is less than or equal to 0.5 mm, so that the sealing coating 220 can better adhere to the surface of the porous substrate 210. If the thickness of the sealing coating 220 is greater than 0.5 mm, it will not only increase the processing cycle of the sealing coating 220, but also increase the difficulty of controlling the dimensional process, and may increase the difficulty of assembling related components.

[0042] It should be noted that, in some of the embodiments, the porous substrate 210 has a liquid absorption surface, an atomization surface, and a connection surface connecting the liquid absorption surface and the atomization surface, wherein at least one of the liquid absorption surface, the atomization surface, and the connection surface is provided with a sealing coating 220. Specifically, the liquid absorption surface is a side of the porous substrate 210 used to contact and absorb the atomized liquid in the liquid storage chamber 110, and the atomization surface is a side for forming an aerosol. Generally speaking, the atomization surface is a side provided with a heating element or in contact with a heating element, that is, the heating element can be directly attached to the atomization surface or formed on the atomization surface by coating, printing, etc. with a conductive paste. Of course, the heating element can also be embedded in the atomization surface, which is not limited here.

[0043] It should be noted that in some of the embodiments, the porous matrix 210 is made of hard and soft porous materials. Of course, the porous matrix 210 can also be made of only hard porous materials or only soft porous materials, which is not limited here.

[0044] Reference Figures 1 to 4In some embodiments, the porous substrate 210 includes a hard porous body 211 and a soft porous body 212, one side of the hard porous body 211 is an atomizing surface, the soft porous body 212 is arranged on the side of the hard porous body 211 that is not facing the atomizing surface, and the side of the soft porous body 212 that is not facing the hard porous body 211 is a liquid absorption surface. Among them, the hard porous body 211 is conducive to improving the structural strength of the porous substrate 210, and at the same time, the porous substrate 210 has a certain support, which is convenient for setting the heating element. In addition, the soft porous body 212 is conducive to improving the oil conduction ability of the porous substrate 210.

[0045] Specifically, the hard porous body 211 may be porous ceramic or porous glass, and the soft porous body 212 may be cotton, which is not limited here.

[0046] Reference Figures 1 to 4 In some embodiments, the porous matrix 210 is a columnar structure, the porous matrix 210 has an avoidance channel running through both ends along its own axis, the inner surface of the avoidance channel is an atomization surface, the outer peripheral surface of the porous matrix 210 is a liquid absorption surface, the two end surfaces of the porous matrix 210 along its own axis are connecting surfaces, and the two end surfaces of the porous matrix 210 along its own axis are both provided with a sealing coating 220 to prevent the atomized liquid adsorbed by the porous matrix 210 from seeping out from the connecting surface.

[0047] It should be noted that, in some other embodiments, the inner surface of the avoidance channel is a liquid absorption surface, and correspondingly, the outer peripheral surface of the porous matrix 210 is an atomization surface, which is not limited here.

[0048] Reference Figure 5 and Figure 6 In some embodiments, when the porous matrix 210 is a columnar structure with an avoidance channel, the soft porous body 212 can be a straight cotton wrapped around the periphery of the hard porous body 211, or a cross cotton wrapped around the periphery of the hard porous body 211, which is not limited here.

[0049] It should be noted that, in some other embodiments, the porous matrix 210 may also be in a rectangular block structure, which is not limited here.

[0050] Reference Figure 7 In some embodiments, the sealing coating 220 is only disposed on the edge region of the porous substrate 210, that is, the sealing coating 220 is mainly disposed on the edge region of the porous substrate 210 where the atomized liquid easily seeps out, and the sealing coating 220 is not disposed on other regions, so as to facilitate rapid processing of the sealing coating 220, which is beneficial to improving processing efficiency. The edge region of the porous substrate 210 includes the end face of the porous substrate 210.

[0051] Reference Figure 7In some embodiments, the maximum distance that the sealing coating 220 extends from the edge of the porous substrate 210 to the middle of the porous substrate 210 is D, where D≤2mm, so that when a user uses the electronic atomization device for the first time, the oil guide body can work normally, which is beneficial to prevent the atomization surface of the oil guide body from dry burning. If D≥2mm, it will affect the flow conduction performance of the oil guide body.

[0052] It should be noted that, in some other embodiments, the surface of the porous substrate 210 is entirely provided with a sealing coating 220, which is beneficial to improving the sealing effect of the sealing coating 220. Specifically, when the porous substrate 210 is composed of a hard porous body 211 and a soft porous body 212, the surface of the hard porous body 211 and the surface of the soft porous body 212 are all provided with a sealing coating 220. Of course, only the surface of the soft porous body 212 may be entirely provided with a sealing coating 220, which is not limited here.

[0053] It should be noted that, in some of the embodiments, the sealing coating 220 is made of PVB (polyvinyl butyral), which is not easily soluble in water and is easy to form a film. The sealing coating 220 made of PVB can be decomposed when heated to 60°C to 120°C. In addition, PVB is a food-grade material, which is non-toxic, harmless and odorless, and will not affect the user's health as well as the taste and experience during smoking.

[0054] It should be noted that, in some other embodiments, the sealing coating 220 is made of sodium alginate, which is not limited here.

[0055] It should be noted that, in some of the embodiments, the preparation process of the oil conducting body 200 is as follows:

[0056] One of the PVB powder and the sodium alginate powder is mixed with ethanol to prepare a coating material that can be decomposed by heating, wherein the mass ratio of the powder to the ethanol is n:5, wherein 1≤n≤3;

[0057] Providing a porous substrate 210, and coating the configured coating material on the surface of the porous substrate 210 to form a sealing coating 220;

[0058] The applied sealing coating 220 is dried by standing or baking.

[0059] Specifically, ethanol has high volatility, so that the coating material coated on the surface of the porous substrate 210 can be dried quickly in a short time, thereby facilitating the improvement of the processing efficiency of the sealing coating 220. The mass ratio of the powder to the ethanol can be 1:5, 2:5, 3:5, or other ratios within the above ratio range, which is not limited here.

[0060] In the description of this specification, if the description involves reference terms such as "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples" and "some examples", it means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0061] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. An oil-conducting body, characterized in that: For electronic atomization devices, including: Porous matrix; The sealing coating is at least partially disposed on the surface of the porous substrate, and the sealing coating is a structure that is impermeable to fluid and decomposable by heating.

2. The oil-conducting body according to claim 1, characterized in that The decomposition temperature of the sealing coating is 60°C to 120°C.

3. The oil-conducting body according to claim 1, characterized in that: The thickness of the sealing coating is less than or equal to 0.5 mm.

4. The oil-conducting body according to claim 1, characterized in that: The porous matrix has a liquid absorption surface, an atomization surface, and a connection surface connecting the liquid absorption surface and the atomization surface, wherein at least one of the liquid absorption surface, the atomization surface, and the connection surface is provided with the sealing coating.

5. The oil-conducting body according to claim 4, characterized in that: The porous matrix is ​​made of hard and / or soft porous material.

6. The oil-conducting body according to claim 5, characterized in that: The porous matrix includes a hard porous body and a soft porous body, one side of the hard porous body is the atomization surface, the soft porous body is arranged on the side of the hard porous body facing away from the atomization surface, and the side of the soft porous body facing away from the hard porous body is the liquid absorption surface.

7. The oil-conducting body according to claim 4, characterized in that: The porous matrix is ​​a columnar structure, and has an avoidance channel running through both ends along its own axial direction. One of the inner surface of the avoidance channel and the outer peripheral surface of the porous matrix is ​​the liquid absorption surface, and the other is the atomization surface. The two end surfaces of the porous matrix along its own axial direction are the connecting surfaces, and the two end surfaces of the porous matrix along its own axial direction are both provided with the sealing coating.

8. The oil-conducting body according to claim 1, characterized in that: The sealing coating is only disposed on the edge region of the porous substrate.

9. The oil-conducting body according to claim 8, characterized in that: The maximum distance that the sealing coating extends from the edge of the porous substrate to the middle of the porous substrate is D, wherein D≤2 mm.

10. The oil conducting body according to claim 1, characterized in that: The sealing coating is disposed entirely on the surface of the porous substrate.

11. The oil-conducting body according to any one of claims 1 to 10, characterized in that: The sealing coating is made of PVB or sodium alginate.

12. An atomizing assembly, characterized in that: It comprises a heating element and the oil-conducting element as claimed in any one of claims 1 to 11, wherein the porous matrix of the oil-conducting element has an atomizing surface, and the heating element is arranged on the atomizing surface.

13. An electronic atomization device, characterized in that: Including the atomization assembly as described in claim 12, the electronic atomization device also includes a shell, a liquid storage chamber and an atomization channel are arranged in the shell, the atomization assembly is at least partially arranged in the atomization channel, the heating element is connected to the fluid of the liquid storage chamber through the porous matrix, the heating element can heat the atomization liquid flowing from the liquid storage chamber to the porous matrix to the atomization temperature to form an aerosol in the atomization channel, and the heating element can also heat the sealing coating to a decomposition temperature, wherein the decomposition temperature is lower than the atomization temperature.

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