Aerosol-generating device

Abstract

The utility model provides an aerosol generating device. The aerosol generating device comprises a shell; the shell is provided with a containing part, and the containing part is provided with a curing layer formed through an ink dripping process. The curing medium is arranged in the containing part on the surface of the shell through the ink dripping technology, the curing layer is formed after the curing medium is cured, the curing layer located in the containing part is not prone to falling off and being abraded off, the surface is smooth and attractive, and therefore when a paper tape friction test, an alcohol friction test, a salt mist test, a water boiling test and other tests are conducted on the surface of the shell of the aerosol generating device, the testing efficiency is improved. And abnormal risks such as falling of a curing layer, wearing-through and base exposure are not easy to occur.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of aerosol generation, in particular to an aerosol generating device. BACKGROUND

[0002] The aerosol generating device comprises a housing and a heating assembly, the heating assembly is arranged in the housing, and the heating assembly heats an aerosol generating article to generate an aerosol for a user to smoke. The housing of the aerosol generating device is usually colored by silk printing or pad printing. CONTENT OF THE UTILITY MODEL

[0003] To solve the problem that the solidified layer formed on the surface of the housing of the aerosol generating device by silk printing or pad printing is easy to fall off and wear off in the prior art, the present application provides a new aerosol generating device.

[0004] The present application provides an aerosol generating device, comprising:

[0005] a housing;

[0006] The housing is provided with a receiving portion, and the receiving portion is provided with a solidified layer formed by an ink dropping process.

[0007] The present application provides an aerosol generating device, and the solidified layer comprises a thermochromic material.

[0008] The present application provides an aerosol generating device, and the thickness of the solidified layer is less than or equal to the thickness of the housing.

[0009] The present application provides an aerosol generating device, comprising a heating assembly, the heating assembly is arranged in the housing, and the receiving portion is arranged at a position corresponding to the heating assembly.

[0010] The present application provides an aerosol generating device, and the housing comprises a metal shell or a plastic shell.

[0011] The present application provides an aerosol generating device, and the housing comprises a stainless steel shell or an aluminum alloy shell.

[0012] The present application provides an aerosol generating device, and the receiving portion comprises a through hole or a groove, and the solidified layer is arranged in the through hole or the groove.

[0013] The present application provides an aerosol generating device, when the receiving portion is a groove, the bottom wall of the groove is an inclined slope.

[0014] The present application provides an aerosol generating device, when the receiving portion is a groove, the cross-sectional area of the groove parallel to the surface of the housing gradually changes in the direction from the outer surface of the housing to the inner surface of the housing.

[0015] The aerosol generating device provided by the present application is characterized in that when the accommodating portion is a through hole, the cross-sectional area of the through hole parallel to the surface of the shell decreases in the direction from the inner surface of the shell to the outer surface of the shell.

[0016] The aerosol generating device provided by the present application is characterized in that the solidified layer is recessed inward from the surface of the shell.

[0017] The aerosol generating device provided by the present application is characterized in that the thickness of the solidified layer is greater than or equal to 0.25 mm.

[0018] The present application provides an aerosol generating device, wherein the solidified layer is formed by the solidified medium in the accommodating portion on the surface of the shell through the ink dripping process. The solidified layer in the accommodating portion is not easy to fall off and wear off, and has a smooth and beautiful surface. Therefore, when the surface of the shell of the aerosol generating device is subjected to paper tape rubbing test, alcohol rubbing test, salt spray test, and water boiling test, the solidified layer is not easy to fall off and wear off to expose the bottom. BRIEF DESCRIPTION OF DRAWINGS

[0019] One or more embodiments are illustrated by way of example in the figures that form a part of this patent document. These example are not intended to limit the application, but to clarify exemplary designs consistent with the application. In the drawings, like reference numerals refer to like elements unless otherwise specified. The figures in the drawings are not necessarily to scale.

[0020] Figure 1 A processing method for a shell of an aerosol generating device according to an embodiment of the present application;

[0021] Figure 2 A schematic diagram of an ink dripping process according to an embodiment of the present application;

[0022] Figure 3 A schematic diagram of an ink dripping process according to an embodiment of the present application;

[0023] Figure 4 A schematic diagram of an aerosol generating device according to an embodiment of the present application.

[0024] In the drawings:

[0025] 10. An aerosol generating device;

[0026] 1. A shell; 11. An accommodating portion; 111. A through hole; 112. A groove;

[0027] 2. A heating assembly;

[0028] 31. A solidified layer; 32. A temperature-sensitive color-changing material. DETAILED DESCRIPTION

[0029] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by a person of ordinary skill in the art without creative effort are within the scope of protection of the present application.

[0030] The terms “first”, “second”, “third” in the present application are only for descriptive purpose, and cannot be understood as indicating or implying relative importance or implicitly indicating the number or order of the indicated technical features. All directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative position relationship or movement condition between components, and the directional indications will change accordingly if the specific posture (as shown in the drawings) changes. In addition, the terms “include” and “have” and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but can optionally include steps or units not listed, or can optionally include other steps or units inherent to the process, method, product or device.

[0031] Reference herein to “an embodiment” means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearance of the phrase in various places in the specification is not necessarily all referring to the same embodiment, or to the same alternative embodiment, nor is it necessary that all embodiments include the same feature, structure, or characteristic. It will be explicitly understood by a person of ordinary skill in the art that the embodiments described herein can be combined with other embodiments.

[0032] It should be noted that when an element is referred to as being “fixed” to another element, it can be directly on the other element or intervening elements can also be present. When an element is referred to as being “connected” or “coupled” to another element, it can be directly connected to the other element or intervening elements can also be present. The terms “vertical”, “horizontal”, “left”, “right” and similar expressions used herein are for illustrative purposes only and are not intended to be limiting.

[0033] It should be noted that the embodiments of the present application provide a processing method for an aerosol generating device housing and an aerosol generating device, which can be used in combination with an aerosol generating article, so that the aerosol generating article generates an aerosol.

[0034] An aerosol generating article can include a mouthpiece, a connecting segment, and a tobacco segment capable of generating an aerosol, the connecting segment being located between the mouthpiece and the tobacco segment for guiding the aerosol to the mouthpiece. The mouthpiece can be held by a user's mouth, and the user can draw the aerosol by sucking the mouthpiece. The tobacco segment in the aerosol generating article can have an aerosol generating substrate therein.

[0035] As used herein, the term "aerosol generating substrate" refers to a substrate capable of releasing volatile substances to form an inhalable aerosol therefrom. The aerosol generating substrate can include a tobacco-containing material containing volatile tobacco flavor compounds released from the substrate upon heating. In particular, the aerosol generating substrate can be a tobacco-containing aerosol generating substrate or a solid tobacco-containing aerosol generating substrate. Alternatively, the aerosol generating substrate can include a non-tobacco material. The aerosol generating substrate can further include an aerosol former. Examples of suitable aerosol formers are glycerol and propylene glycol.

[0036] As desired, the aerosol generating substrate can contain additional tobacco or non-tobacco volatile flavor compounds released upon heating of the aerosol generating substrate. The aerosol generating substrate can also contain microcapsules, for example, containing additional tobacco or non-tobacco volatile flavor compounds, and such microcapsules can melt during heating of the solid aerosol generating substrate.

[0037] The aerosol generating article can have a substantially rod-like structure extending in a longitudinal direction. The mouthpiece can be disposed adjacent to a proximal end of the aerosol generating article. The tobacco segment can be disposed adjacent to a distal end of the aerosol generating article.

[0038] The heating assembly is used to release heat to the aerosol generating article, thereby causing the aerosol generating substrate to generate volatile substances, which combine with air flowing into the aerosol generating substrate to form an aerosol. The air flowing into the aerosol generating substrate and the aerosol generated by the aerosol generating substrate can pass out of the proximal end of the aerosol generating substrate and be drawn into the user's mouth cavity.

[0039] The present application provides a processing method for an aerosol generating device housing, as shown in Figure 1 The processing method comprises the following steps:

[0040] A receiving portion is arranged on the surface of the housing;

[0041] A curing medium is dropped into the receiving portion by a drop-on-demand process;

[0042] The curing medium is cured.

[0043] It should be noted that after the curing medium is cured, a cured layer is formed and embedded in the receiving portion. During the curing process, the curing medium is pasted to the inner wall of the receiving portion, and after the cured layer is formed, the cured layer is tightly embedded in the receiving portion.

[0044] The application sets the curing medium in the accommodating portion on the surface of the shell through the drop ink process. After the curing medium is cured, a cured layer is formed. The cured layer in the accommodating portion is not easy to fall off and wear off. The surface is smooth and beautiful, so that when the shell surface of the aerosol generating device is subjected to paper tape rubbing test, alcohol rubbing test, salt spray test, boiling test and other tests, it is not easy to have abnormal risks such as falling off and wearing off of the cured layer and exposing the bottom.

[0045] In an embodiment of the application, the drop ink process is a printing technology that drops ink on a substrate to form images or text. It usually involves using an inkjet printhead to accurately eject tiny droplets of ink onto paper, plastic, metal or other materials. This technology can produce high-resolution images and is suitable for a variety of substrates.

[0046] In an embodiment of the application, the drop ink process can take the form of inkjet printing, with 50-60 μm droplets of curing medium being dropped at predetermined positions. The position of the drop is achieved by the accurate and fine movement of the inkjet head. The movement position of the inkjet head can be up to 1000 points per inch or more. By using multiple ink cartridges of different colors, a full-color image can be printed.

[0047] In an embodiment of the application, the curing medium includes a thermochromic medium. The shell of the aerosol generating device is provided with a thermochromic material that is cured and formed. When heat is transferred to the shell during the operation of the heating assembly, the thermochromic material on the shell will change color, allowing the user to observe that the aerosol generating device is in operation. In addition, the amount of oil applied by the drop ink process is greater than that of the silk screen printing process and the pad printing process, so that the amount of thermochromic material in the accommodating portion is greater, thereby allowing the color reaction of the thermochromic material to be better.

[0048] In an embodiment of the application, in the step of dropping the curing medium into the accommodating portion by the drop ink process, the temperature of the drop ink process is 10-25°C. The drop ink process is generally carried out at room temperature. In an embodiment of the application, the temperature of the drop ink process is 10°C, 15°C, 18°C, 20°C, 22°C or 25°C.

[0049] In an embodiment of the application, as shown in Figure 2 the accommodating portion is a groove, and in the step of dropping the curing medium into the accommodating portion by the drop ink process, the curing medium is directly dropped into the groove. In an embodiment of the application, the groove can include a slot with one open end and the other closed end, and the curing medium can be dropped from the open end of the groove.

[0050] In an embodiment of the present application, the bottom wall of the groove is an inclined surface, and in the step of dropping the solidifying medium into the accommodating portion through the drop-ink process, the nozzle for drop-ink is opposite to the highest point or the lowest point of the inclined surface, and in the drop-ink process, the solid medium can flow along the bottom of the groove, facilitating the solid medium to spread over the groove.

[0051] In an embodiment of the present application, the cross-sectional area of the groove parallel to the surface of the shell gradually changes in the direction from the outer surface of the shell to the inner surface of the shell. In an embodiment of the present application, the cross-sectional area of the groove parallel to the surface of the shell gradually decreases in the direction from the outer surface of the shell to the inner surface of the shell, facilitating the solidifying medium to be dropped into the groove in the drop-ink process, and facilitating the solidifying medium to solidify in the groove when the amount of the dropped solidifying medium is certain, and facilitating the surface of the shell to have a larger surface area. In an embodiment of the present application, the cross-sectional area of the groove parallel to the surface of the shell gradually decreases in the direction from the outer surface of the shell to the inner surface of the shell, facilitating the thermochromic medium to be dropped into the groove in the drop-ink process, and facilitating the thermochromic medium to solidify in the groove when the amount of the dropped thermochromic medium is certain, and facilitating the surface of the shell to have a larger surface area, so that the thermochromic medium in the groove can be displayed on the surface of the shell, and the color-changing effect of the shell is good. In an embodiment of the present application, the cross-sectional area of the groove parallel to the surface of the shell gradually increases in the direction from the outer surface of the shell to the inner surface of the shell, so that the solidifying layer in the groove is not easily worn off.

[0052] In an embodiment of the present application, as shown in Figure 3 In an embodiment of the present application, the accommodating portion is a through hole, and in the step of dropping the solidifying medium into the accommodating portion through the drop-ink process, the shell is placed on a positioning plane, and the positioning plane blocks one side of the through hole, and the nozzle for drop-ink drops the solidifying medium into the through hole from the other side of the through hole.

[0053] In an embodiment of the present application, the cross-sectional area of the through hole parallel to the surface of the shell gradually changes in the direction from the inner surface of the shell to the outer surface of the shell, facilitating the solidifying medium to flow from one side of the inner surface of the shell to the whole through hole. In an embodiment of the present application, the cross-sectional area of the through hole parallel to the surface of the shell gradually decreases in the direction from the inner surface of the shell to the outer surface of the shell. In an embodiment of the present application, the cross-sectional area of the through hole parallel to the surface of the shell gradually increases in the direction from the inner surface of the shell to the outer surface of the shell.

[0054] In an embodiment of the present application, the through hole and the groove can include a pattern or an icon in a certain shape, such as a trademark of a brand, etc.

[0055] In one embodiment of the present application, when the shell is a metal shell, the step of arranging the accommodating portion on the surface of the shell specifically includes making a through hole or a groove on the surface of the metal shell by machining. In one embodiment of the present application, the machining includes computer numerical control precision machining.

[0056] In one embodiment of the present application, when the shell is a plastic shell, the step of arranging the accommodating portion on the surface of the shell specifically includes reserving a sink on a mold, thereby making a through hole or a groove on the plastic shell.

[0057] In one embodiment of the present application, the hard particles are contained in the curing medium, so that the surface of the cured layer formed by curing has a rough texture. In one embodiment of the present application, the hard particles include metal particles or plastic particles, so that the surface of the cured layer formed by curing has a metal or plastic frosted texture.

[0058] In one embodiment of the present application, the viscosity of the curing medium is 5000M Pa·S-9000M Pa·S. The curing medium with the viscosity in this range has a suitable surface tension, so that the surface of the curing medium after curing is flat and beautiful. In one embodiment of the present application, the viscosity of the curing medium is 5000M Pa·S, 5500M Pa·S, 6000M Pa·S, 6500M Pa·S, 7000M Pa·S, 75000M Pa·S, 8000M Pa·S, 8500M Pa·S, 9000M Pa·S.

[0059] In one embodiment of the present application, the temperature-sensitive color-changing medium includes ink, curing agent and diluent, and the mass ratio of the ink, the curing agent and the diluent is 10:1:(10-15). In one embodiment of the present application, the mass ratio of the ink, the curing agent and the diluent is 10:1:10. In one embodiment of the present application, the mass ratio of the ink, the curing agent and the diluent is 10:1:12. In one embodiment of the present application, the mass ratio of the ink, the curing agent and the diluent is 10:1:15.

[0060] In one embodiment of the present application, the curing is high-temperature curing, the time of the high-temperature curing is 15min-90min, and the temperature of the high-temperature curing is 50℃-90℃. In one embodiment of the present application, the curing medium used for the high-temperature curing is usually a medium whose molecular structure changes at high temperature, so that the curing medium is cured.

[0061] In an embodiment of the present application, the step of curing the curing medium comprises: high-temperature curing, which comprises first high-temperature curing and second high-temperature curing; the curing temperature of the first high-temperature curing is 50-70°C, and the curing time of the first high-temperature curing is 10-20 minutes; the curing temperature of the second high-temperature curing is 70-90°C, and the curing time of the second high-temperature curing is 15-70 minutes.

[0062] In an embodiment of the present application, the shell is allowed to stand for 20-40 minutes before the first high-temperature curing.

[0063] In an embodiment of the present application, the surface of the shell is observed after the first high-temperature curing, and the overflowed ink is wiped off if any.

[0064] In an embodiment of the present application, after the curing medium is arranged in the accommodating portion by the ink dripping process, the curing medium is allowed to stand for 30 minutes, then subjected to the first high-temperature curing at 65°C for 15 minutes, and then the surface of the shell is observed, and the overflowed ink is wiped off if any; finally, the second high-temperature curing is performed at 80°C for 60 minutes, so that a smooth and beautiful appearance surface is obtained. Through the standing, the first high-temperature curing and the second high-temperature curing, if there is overflowed ink during the ink dripping process, the overflowed ink can be wiped off after the first high-temperature curing, so that the product can be reworked, and the product yield is greatly improved.

[0065] In an embodiment of the present application, after the curing medium is arranged in the accommodating portion by the ink dripping process, the curing medium is directly subjected to the high-temperature curing at 70-90°C for 15-70 minutes to obtain a cured layer. This curing method needs to strictly control the amount of ink dripping during the ink dripping process to avoid overflow.

[0066] In an embodiment of the present application, the curing comprises ultraviolet curing, the ultraviolet curing time is 1-5 minutes, and the ultraviolet curing temperature is 10-25°C. In an embodiment of the present application, the ultraviolet curing refers to a process in which, under UV radiation, the photo-initiator in a liquid UV material is stimulated to become a free radical or a cation, thereby initiating the polymerization of a high-molecular material (resin) containing active functional groups into an insoluble and infusible solid coating film, and the ultraviolet curing time is generally short. In an embodiment of the present application, the curing medium is cured for 2 minutes under the irradiation of UV ultraviolet light to obtain a cured layer.

[0067] In an embodiment of the present application, the curing medium is a medium containing a fluorescent component, and a cured layer with a fluorescent effect is obtained after high-temperature curing or ultraviolet curing. When the external light changes, the cured layer can present different colors.

[0068] This application provides an aerosol generating device 10, such as... Figure 4 As shown, the device includes a housing 1 and a cured layer 31. The housing 1 has a receiving portion 11, and the receiving portion 11 is provided with a cured layer 31 formed by an ink-dropping process. The cured layer 31 formed by the ink-dropping process is not easy to fall off or wear away, and has a smooth and aesthetically pleasing surface. This makes it less likely for abnormal risks such as the cured layer falling off or being worn through to expose the substrate when the surface of the aerosol generating device's housing is subjected to tests such as paper tape friction test, alcohol friction test, salt spray test, and boiling water test.

[0069] In one embodiment of this application, the cured layer 31 includes a thermochromic material 32. The ink application rate in the ink-dropping process is larger than that in screen printing and pad printing, resulting in a larger amount of thermochromic material in the containment area, thus leading to a better color response of the thermochromic material 32.

[0070] In one embodiment of this application, the thermochromic material 32 includes thermochromic ink, the color of which changes with temperature.

[0071] This application provides an aerosol generating device 10, including a housing 1, a heating element 2, and a thermochromic material 32. The heating element 2 is disposed within the housing 1. The housing 1 has a receiving portion 11, and the receiving portion 11 is provided with the cured thermochromic material 32. The thermochromic material 32 in the housing 10 of the aerosol generating device 10 provided in this application, when the heating element 2 transfers heat to the housing 1 during operation, the thermochromic material 32 on the housing 1 will change color, thus allowing the user to observe that the aerosol generating device 10 is in operation.

[0072] In one embodiment of this application, the thermochromic material 32 refers to a material that displays one color when the temperature is below a preset temperature, and displays another color when the preset temperature is reached or exceeded. This allows users to intuitively determine whether the temperature of the thermochromic material 32 is above the preset temperature by observing the color change. In one embodiment of this application, the colors of the thermochromic material 32 before and after the color change can be achieved by selecting different material formulations. In one embodiment of this application, the thermochromic material 32 is yellow before the color change and red after the color change. In one embodiment of this application, the thermochromic material 32 is green before the color change and yellow after the color change. In one embodiment of this application, the thermochromic material 32 is yellow before the color change and orange after the color change. In one embodiment of this application, the color-changing temperature of the thermochromic material 32 is 25℃-35℃. In one embodiment of this application, the color-changing temperature of the thermochromic material 32 is 25°C, 28°C, 30°C, 32°C or 35°C.

[0073] In an embodiment of the present application, the accommodation portion 11 is provided in a certain shape, such as a specific pattern or a logo, etc.

[0074] In an embodiment of the present application, the temperature-sensitive color-changing material 32 is formed in the accommodation portion 11 of the shell 1 by solidification molding. In an embodiment of the present application, solidification molding refers to that the temperature-sensitive color-changing material 32 is in a liquid state before solidification and is in a solid state after solidification of the temperature-sensitive color-changing material 32. The temperature-sensitive color-changing material 32 formed by solidification molding is tightly combined with the accommodation portion of the shell 1 and does not need to be bonded or fixed by other means.

[0075] In an embodiment of the present application, the solidification layer 31 forms a layered structure, that is, the thickness of the solidification layer 31 is less than or equal to the thickness of the shell 1, that is, the size of the temperature-sensitive color-changing material 32 in the thickness direction of the shell 1 is less than the size of the shell 1. Therefore, the temperature-sensitive color-changing material 32 does not exceed the inner surface and the outer surface of the shell 1 in the thickness direction of the shell 1, so that the temperature-sensitive color-changing material 32 arranged on the shell 1 is not easily scratched and falls off.

[0076] In an embodiment of the present application, the accommodation portion 11 is arranged at a position corresponding to the heating assembly 2. In an embodiment of the present application, the shell 1 of the aerosol generating device 10 obtains the most heat by conduction at a position corresponding to the heating assembly. The accommodation portion 11 is arranged at a position corresponding to the heating assembly 2, so that the temperature-sensitive color-changing material 32 is arranged at a position corresponding to the heating assembly 2 on the shell 1. Therefore, the temperature-sensitive color-changing material 32 can detect the area on the shell 1 where the heat is the most serious, and the user can more intuitively observe the color change of the temperature-sensitive color-changing material 32 to perceive the change of the surface temperature of the shell 1.

[0077] In an embodiment of the present application, the shell 1 includes a metal shell or a plastic shell. In an embodiment of the present application, the shell 1 includes a metal shell. The metal shell is a good conductor of heat, which facilitates the conduction of heat from the heating assembly 2 to the shell 1.

[0078] In an embodiment of the present application, the shell 1 includes a stainless steel shell or an aluminum alloy shell. The stainless steel shell or the aluminum alloy shell is a good conductor of heat, which facilitates the conduction of heat from the heating assembly 2 to the shell 1.

[0079] In an embodiment of the present application, the accommodation portion 11 includes a through hole 111 or a groove 112, and the temperature-sensitive color-changing material 32 is arranged in the through hole 111 or the groove 112. In an embodiment of the present application, when the shell 1 is a metal shell, the metal shell can be precisely machined by computer numerical control to form the through hole 111 or the groove 112. In an embodiment of the present application, when the shell 1 is a plastic shell, the plastic shell can be provided with a sink on a mold to form the through hole 111 or the groove 112.

[0080] In one embodiment of the present application, the recess 112 can comprise a groove with one end open and the other end closed, and the solidifying medium can be dripped into the recess 112 from the open end.

[0081] In one embodiment of the present application, when the accommodating portion 11 is the recess 112, the bottom wall of the recess 112 is an inclined slope. In the ink dripping process, the solidifying medium can flow along the bottom surface of the recess 112, facilitating the solidifying medium to cover the recess 112.

[0082] In one embodiment of the present application, the cross-sectional area of the recess 112 parallel to the surface of the shell 1 gradually changes in the direction from the outer surface of the shell 1 to the inner surface of the shell 1. In one embodiment of the present application, the cross-sectional area of the recess 112 parallel to the surface of the shell 1 gradually decreases in the direction from the outer surface of the shell 1 to the inner surface of the shell 1, facilitating the solidifying medium to be dripped into the recess 112 in the ink dripping process, and facilitating the solidifying medium to solidify when the amount of the dripped solidifying medium is constant, and facilitating the surface of the shell 1 to have a larger surface area. In one embodiment of the present application, the cross-sectional area of the recess 112 parallel to the surface of the shell 1 gradually decreases in the direction from the outer surface of the shell 1 to the inner surface of the shell 1, facilitating the thermochromatic medium to be dripped into the recess 112 in the ink dripping process, and facilitating the thermochromatic medium to solidify when the amount of the dripped thermochromatic medium is constant, and facilitating the surface of the shell 1 to have a larger surface area, so that there is enough thermochromatic medium in the recess 112 to be displayed on the surface of the shell 1, and the color changing effect of the shell 1 is good. In one embodiment of the present application, the cross-sectional area of the recess 112 parallel to the surface of the shell 1 gradually increases in the direction from the outer surface of the shell 1 to the inner surface of the shell 1, so that the solidifying layer 31 in the recess 112 is not easily worn off.

[0083] In one embodiment of the present application, the through hole 111 can comprise two open ends, and the solidifying medium can be dripped into the through hole 111 from one open end in the ink dripping process.

[0084] In one embodiment of the present application, when the accommodating portion 11 is the through hole 111, the cross-sectional area of the through hole 111 parallel to the surface of the shell 1 decreases in the direction from the inner surface of the shell 1 to the outer surface of the shell 1, facilitating the solidifying medium to flow from one side of the inner surface of the shell 1 to the entire through hole 111. In one embodiment of the present application, the cross-sectional area of the through hole 111 parallel to the surface of the shell 1 gradually decreases in the direction from the inner surface of the shell 1 to the outer surface of the shell 1. In one embodiment of the present application, the cross-sectional area of the through hole 111 parallel to the surface of the shell 1 gradually increases in the direction from the inner surface of the shell 1 to the outer surface of the shell 1.

[0085] In an embodiment of the present application, the temperature-sensitive color-changing material 32 is recessed inward from the surface of the shell 1, which can reduce the direct contact between the temperature-sensitive color-changing material 32 and external hard objects, effectively prevent the shell 1 from being scratched or damaged in daily use, and greatly prolong the service life of the ink.

[0086] In an embodiment of the present application, the thickness of the solidified layer is greater than or equal to 0.25 mm. In an embodiment of the present application, the thickness of the temperature-sensitive color-changing material 32 is greater than or equal to 0.25 mm. When the thickness of the temperature-sensitive color-changing material 32 is greater than or equal to 0.25 mm, the accommodation portion 11 can accommodate sufficient temperature-sensitive color-changing material 32, so that the temperature-sensitive color-changing material 32 can change color when the temperature of the shell 1 reaches or exceeds the preset temperature. In an embodiment of the present application, the thickness of the temperature-sensitive color-changing material 32 is 0.25 mm, 0.30 mm, 0.35 mm, 0.40 mm, 0.45 mm, 0.50 mm, 0.55 mm, 0.58 mm, 0.60 mm, or 0.65 mm.

[0087] It should be noted that the specification and drawings of the present application give the preferred embodiments of the present application, but are not limited to the embodiments described in the specification, and further, those skilled in the art can make improvements or changes according to the above description, and all these improvements and changes shall belong to the protection scope of the claims of the present application.

Claims

1. An aerosol-generating device, characterized by, Comprising: a housing; the housing is provided with a receiving portion, the receiving portion is provided with a solidified layer formed by a drop-on-demand process.

2. The aerosol-generating device of claim 1, wherein, the solidified layer comprises a thermochromic material.

3. The aerosol-generating device of claim 1, wherein, the thickness of the solidified layer is less than or equal to the thickness of the housing.

4. The aerosol-generating device of claim 1, wherein, comprising a heat-generating component, the heat-generating component is disposed in the housing, the receiving portion is disposed at a position corresponding to the heat-generating component.

5. The aerosol-generating device of claim 1, wherein, the housing comprises a metal shell or a plastic shell.

6. The aerosol-generating device of claim 1, wherein, the housing comprises a stainless steel shell or an aluminum alloy shell.

7. The aerosol-generating device of claim 1, wherein, the receiving portion comprises a through hole or a groove, the solidified layer is disposed in the through hole or the groove.

8. The aerosol-generating device of claim 7, wherein, when the receiving portion is a groove, the bottom wall of the groove is an inclined slope. 9.The aerosol-generating device of claim 7, wherein, when the receiving portion is a groove, the cross-sectional area of the groove parallel to the surface of the housing gradually changes in the direction from the outer surface of the housing to the inner surface of the housing. 10.The aerosol-generating device of claim 7, wherein, when the receiving portion is a through hole, the cross-sectional area of the through hole parallel to the surface of the housing decreases in the direction from the inner surface of the housing to the outer surface of the housing. 11.The aerosol-generating device of claim 1, wherein, the solidified layer is recessed inward from the surface of the housing. 12.The aerosol-generating device of claim 1, wherein, the thickness of the solidified layer is greater than or equal to 0.25 mm.

Images