Heating assembly, aerosol generating device, and aerosol generating system

Abstract

Disclosed in embodiments of the present application are a heating assembly, an aerosol generating device, and an aerosol generating system. The heating assembly comprises a first support, a second support, a housing, and a heating body. A first vent hole is formed in the first support. Two opposite ends of the housing are respectively sealedly connected to the first support and the second support, and the housing, the first support, and the second support define a mounting cavity. A heating cavity is formed in the heating body. The heating body is provided in the mounting cavity. One end of the heating cavity is communicated with the outside by means of the first vent hole. The heating body is used for heating an aerosol generating substrate. According to the heating assembly of the embodiments of the present application, the housing, the first support, and the second support define the relatively sealed mounting cavity, and the heating body in the mounting cavity is not easily affected by a high-temperature acidic / alkaline environment, thereby facilitating improvement of the sealing performance of the heating body in the high-temperature acidic / alkaline environment, and thus improving the reliability of the heating assembly and prolonging the service life of the heating assembly.

Description

Heating assembly, aerosol generating device and aerosol generating system

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] The present disclosure is based on Chinese patent application numbered 202420220261.3, filed on January 29, 2024, and Chinese patent application numbered 202420221039.5, filed on January 29, 2024, and claims priority from both Chinese patent applications. The entire contents of both Chinese patent applications are incorporated herein by reference into the present disclosure. Technical Field

[0003] The present application relates to the technical field of aerosol generating devices, and in particular to a heating component, an aerosol generating device and an aerosol generating system. Background Art

[0004] This section is intended to provide a background or context to the embodiments presented in this application. No statement herein is admitted to be prior art by virtue of its inclusion in this section.

[0005] An aerosol generating device is an apparatus used to heat an aerosol generating substrate and generate an aerosol.

[0006] In the related art, the aerosol generating device includes a heating component. During use, the two ends of the heating element of the heating component need to maintain a stable sealing effect. However, when the heating component is exposed to high temperature and acid-base environment for a long time, the heating element is prone to sealing failure, thereby affecting the reliability and service life of the heating component. Summary of the Invention

[0007] In view of this, the embodiments of the present application hope to provide a heating component, an aerosol generating device and an aerosol generating system, aiming to improve the sealing performance of the heating element in high temperature and acid-base environments, so as to improve the reliability and service life of the heating component.

[0008] To achieve the above objectives, an embodiment of the present application provides a heating assembly for an aerosol generating device, the heating assembly comprising:

[0009] A first support having a first vent hole;

[0010] Second support;

[0011] a housing, wherein opposite ends of the housing are respectively sealedly connected to the first support and the second support, and the housing, the first support, and the second support define a mounting cavity;

[0012] A heating element having a heating cavity therein is arranged in the installation cavity, one end of the heating cavity is connected to the outside through the first vent hole, and the heating element is used to heat the aerosol generating matrix.

[0013] In one embodiment, the first support is connected to the shell by welding; and / or the second support is connected to the shell by welding.

[0014] In one embodiment, the housing has mounting channels running through opposite ends of the housing, at least a portion of the second support is disposed in the mounting channel, and a sealant is filled between the second support and a side wall of the mounting channel.

[0015] In one embodiment, one end of the heating element is sealed and connected to the first support; and / or the other end of the heating element is sealed and connected to the second support.

[0016] In one embodiment, the heating assembly further includes a first seal mounted on the heating element, a first mounting groove is provided on the first support, one end of the heating element is disposed in the first mounting groove, and the first seal is sealed with the groove wall of the first mounting groove.

[0017] In one embodiment, the diameter of the first mounting groove and the thickness of the first sealing member gradually increase in a direction from the first support to the second support.

[0018] In one embodiment, the heating assembly further includes a second seal mounted on the heating element, a second mounting groove is provided on the second support, the other end of the heating element is disposed in the second mounting groove, and the second seal is sealed with the groove wall of the second mounting groove.

[0019] In one embodiment, a wire passing groove is provided on the side wall of the second support, and the wire passing groove extends from the first support toward the second support, and the wire passing groove is used for routing the heating element.

[0020] In one embodiment, the wire groove is filled with sealant.

[0021] In one embodiment, the wire groove is provided on the outer side wall of the second support.

[0022] An embodiment of the present application provides an aerosol generating device, which includes a power supply component and the heating component described in any one of the above embodiments, wherein the power supply component is electrically connected to the heating element.

[0023] An embodiment of the present application provides an aerosol generating system, which includes an aerosol generating substrate and the aerosol generating device described in any of the above embodiments. The aerosol generating device has a containing chamber, the aerosol generating substrate is arranged in the containing chamber, and the heating element is used to heat the aerosol generating substrate.

[0024] An embodiment of the present application provides a heating assembly for an aerosol generating device, the heating assembly comprising:

[0025] A mounting support having a mounting slot;

[0026] a heating element, for heating the aerosol generating substrate, wherein the two ends of the heating element along its axial direction are respectively a first end and a second end, and the first end is disposed in the mounting groove;

[0027] a first sealing member, the sealing member being sandwiched between the outer peripheral wall of the heating member and the groove wall of the mounting groove;

[0028] Wherein, a limiting surface facing the first end is further provided on the outer peripheral wall of the heating element, and the first sealing element abuts against the limiting surface.

[0029] In one embodiment, the heating element includes a heating element and a limiting member sleeved on the heating element, the end surface of the limiting member facing the first end constitutes the limiting surface, and the heating element and the limiting member are split structures.

[0030] In one embodiment, the limiting member is a heat shrink tube.

[0031] In one embodiment, the diameter of the installation groove gradually increases from the first end to the second end.

[0032] In one embodiment, the thickness of the first sealing member gradually increases from the first end to the second end, and the outer side wall of the first sealing member is adapted to the groove wall of the installation groove.

[0033] In one embodiment, the space formed by the groove wall of the installation groove is in the shape of a truncated cone; and / or the first sealing member is in the shape of a truncated cone.

[0034] In one embodiment, the mounting support is provided with an air hole communicating with the mounting groove, and the heating element has a heating cavity therein, and the heating cavity is communicated with the outside through the air hole.

[0035] In one embodiment, the mounting support has a through hole, which passes through both ends of the mounting support along the axial direction of the heating element, and a step surface facing the heating element is formed on the hole wall of the through hole. The part of the through hole extending along the step surface close to the heating element is formed as the mounting groove, and the part of the through hole extending along the step surface away from the heating element is formed as the air hole.

[0036] An embodiment of the present application provides an aerosol generating device, which includes a power supply component and the heating component described in any one of the above embodiments, wherein the power supply component is electrically connected to the heating element.

[0037] An embodiment of the present application provides an aerosol generating system, which includes an aerosol generating substrate and the aerosol generating device described in any of the above embodiments. The aerosol generating device has a containing chamber, the aerosol generating substrate is arranged in the containing chamber, and the heating element is used to heat the aerosol generating substrate.

[0038] The heating component provided in the embodiment of the present application, the outer shell, the first support and the second support define an installation cavity, and the heating element is arranged in the installation cavity, that is, the connection between the heating element and the first support and the connection between the heating element and the second support are both located in the installation cavity. Since the opposite ends of the outer shell are sealed with the first support and the second support respectively, the connection between the outer shell and the first support and the connection between the outer shell and the second support both have good sealing properties. Under the protection of the cavity wall of the installation cavity, the heating element is not easily affected by high temperature and acid-base environment, which is beneficial to improving the sealing performance of the heating element in high temperature and acid-base environment, reducing the risk of aerosol generated in the heating cavity leaking from the heating component, and improving the reliability and service life of the heating component. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] FIG1 is a schematic structural diagram of a heating assembly according to an embodiment of the present application.

[0040] FIG2 is a schematic structural diagram of the heating assembly shown in FIG1 , wherein the housing of the heating assembly is not shown;

[0041] FIG3 is a schematic cross-sectional view of the heating assembly shown in FIG1 ;

[0042] Figure 4 is an enlarged schematic diagram of point A in Figure 3;

[0043] FIG5 is a schematic structural diagram of a heating assembly according to another embodiment of the present application;

[0044] FIG6 is a schematic cross-sectional view of the heating assembly shown in FIG5 ;

[0045] FIG7 is a schematic structural diagram of a mounting bracket according to an embodiment of the present application;

[0046] FIG8 is a schematic structural diagram of a heating element according to an embodiment of the present application. DETAILED DESCRIPTION

[0047] It should be noted that, unless there is a conflict, the embodiments and technical features in the embodiments of this application can be combined with each other, and the detailed description in the specific implementation method should be understood as an explanation of the purpose of this application and should not be regarded as an improper restriction on this application.

[0048] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include one or more of such features. Throughout the description of this application, unless otherwise specified, "plurality" means two or more.

[0049] Furthermore, it should be noted that, in the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0050] In the embodiments of the present application, "axial" is based on the direction shown in Figure 3 or Figure 6. It should be understood that these directional terms are only for the convenience of describing the present application and simplifying the description, and do 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 cannot be understood as a limitation on the present application.

[0051] The present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0052] An embodiment of the present application provides an aerosol generating system, which includes an aerosol generating substrate and an aerosol generating device of any embodiment of the present application. The aerosol generating device has a containing chamber, and the aerosol generating substrate is arranged in the containing chamber. The heating element of the aerosol generating device is used to heat the aerosol generating substrate.

[0053] The containing chamber provides a containing space for the aerosol generating substrate, and the aerosol generating substrate can be heated by the heating element in the containing chamber to generate aerosol.

[0054] The shape and size of the storage chamber are not limited, as long as they can accommodate the aerosol generating substrate.

[0055] 1 to 4 , an embodiment of the present application provides an aerosol generating device, which includes a power supply assembly and a heating assembly 10 according to any embodiment of the present application. The heating assembly 10 includes a heating element 14 , and the power supply assembly is electrically connected to the heating element 14 .

[0056] The power supply assembly is primarily used to power the heating element 14 and control operations such as turning the entire aerosol generating device on and off. When powered, the heating element 14 heats the aerosol-generating substrate to produce an aerosol for the user to consume. The aerosol-generating substrate includes, but is not limited to, materials used for medical, health, wellness, and cosmetic purposes. For example, the aerosol-generating substrate includes, but is not limited to, pharmaceuticals, nicotine-containing materials, or nicotine-free materials.

[0057] It should be noted that the specific type of the aerosol generating device provided in the embodiments of the present application is not limited. For example, the aerosol generating device can be a medical atomizing device, an air humidifier, or an atomizing device such as an electronic cigarette.

[0058] As shown in Figures 1 to 4, an embodiment of the present application provides a heating component for an aerosol generating device, wherein the heating component 10 includes a first support 11, a second support 12, an outer shell 13 and a heating element 14; the first support 11 has a first air vent 11a; the opposite ends of the outer shell 13 are sealed with the first support 11 and the second support 12 respectively, and the outer shell 13, the first support 11 and the second support 12 define an installation cavity 10a; the interior of the heating element 14 has a heating cavity 14a, the heating element 14 is arranged in the installation cavity 10a, one end of the heating cavity 14a is connected to the outside through the first air vent 11a, and the heating element 14 is used to heat the aerosol generating matrix.

[0059] When the heating assembly 10 is used in an aerosol-generating device, the heating chamber 14a can be understood as the storage chamber of the aerosol-generating device. The heating chamber 14a is used to accommodate the aerosol-generating substrate. It should be noted that the aerosol-generating substrate can be in any form and can, for example, be solid. The aerosol-generating substrate can include tobacco material.

[0060] The first vent 11a can be used to allow air to enter or exit the heating chamber 14a. For example, in some embodiments, after the aerosol-generating substrate is placed in the heating chamber 14a, a gap is formed between the aerosol-generating substrate and the wall of the first vent 11a. External airflow enters the heating chamber 14a through this gap and reaches the end of the heating chamber 14a away from the first vent 11a. The external airflow then flows through the interior of the aerosol-generating substrate toward the first vent 11a, carrying the aerosol generated by the aerosol-generating substrate out of the heating chamber 14a.

[0061] In other embodiments, the second support 12 has a second vent 12a. One of the first vent 11a and the second vent 12a is used for air intake into the heating chamber 14a, while the other is used for air exhaust from the heating chamber 14a. For example, the first vent 11a serves as an air outlet, and the second vent 12a serves as an air inlet. During use of the aerosol generating device, external airflow enters the heating chamber 14a through the second vent 12a, carrying the aerosol generated within the heating chamber 14a out through the first vent 11a. The user can then access the aerosol through the first vent 11a.

[0062] The shape of the housing 13 is not limited. For example, as shown in FIG1 , the housing 13 is a cylindrical structure. The cylindrical structure can be a cylinder, a square cylinder, or the like.

[0063] The opposite ends of the housing 13 are sealedly connected to the first support 11 and the second support 12 respectively.

[0064] It should be noted that a sealed connection does not necessarily require absolute sealing. For example, a sealed connection between the housing 13 and the first support 11 means that there is good airtightness between the housing 13 and the first support 11 after the connection. The same applies to a sealed connection between the housing 13 and the second support 12.

[0065] The installation cavity 10 a has good sealing performance both at the connection between the housing 13 and the first support 11 and at the connection between the housing 13 and the second support 12 .

[0066] After the heating element 14 is disposed in the installation cavity 10 a , the cavity wall of the installation cavity 10 a provides a certain degree of protection for the heating element 14 .

[0067] In the related art, the opposite ends of the heating element are respectively connected to the first support and the second support using sealing silicone. When the heating component is exposed to high temperature and acid-base environment for a long time, the sealing silicone is prone to aging and hardening, thereby losing its sealing function, resulting in sealing failure at the connection between the heating chamber and the first support or the connection between the heating chamber and the second support, thereby affecting the reliability and service life of the heating component.

[0068] The heating component provided in the embodiment of the present application is defined by the outer shell 13, the first support 11 and the second support 12 to form an installation cavity 10a, and the heating element 14 is arranged in the installation cavity 10a, that is, the connection between the heating element 14 and the first support 11 and the connection between the heating element 14 and the second support 12 are both located in the installation cavity 10a. Since the opposite ends of the outer shell 13 are sealed with the first support 11 and the second support 12 respectively, the connection between the outer shell 13 and the first support 11 and the connection between the outer shell 13 and the second support 12 both have good sealing properties. Under the protection of the cavity wall of the installation cavity 10a, the heating element 14 is not easily affected by high temperature and acid-base environment, which is beneficial to improving the sealing performance of the heating element 14 in high temperature and acid-base environment, reducing the risk of aerosol generated in the heating cavity 14a leaking from the heating component 10, and improving the reliability and service life of the heating component 10.

[0069] It should be noted that the sealing connection method between the housing 13 and the first support 11 or the second support 12 is not limited. For example, in some embodiments, the first support 11 is welded to the housing 13. The use of welding to seal between the first support 11 and the housing 13 provides better sealing performance between the first support 11 and the housing 13. At the same time, the welding sealing method is more corrosion-resistant, further improving the sealing performance of the heating assembly 10 in acidic and alkaline environments.

[0070] In some embodiments, the second support 12 is welded to the housing 13. A weld seal is used between the second support 12 and the housing 13, which also provides better sealing performance. Furthermore, the weld seal is more corrosion-resistant, further improving the sealing performance of the heating assembly 10 in acidic and alkaline environments.

[0071] As shown in Figures 3 and 4, in some embodiments, the shell 13 has an installation channel 13a that passes through opposite ends of the shell 13, at least a portion of the second support 12 is disposed in the installation channel 13a, and sealant is filled between the second support 12 and the side wall of the installation channel 13a.

[0072] It should be noted that, in this embodiment, a mounting cavity 10 a is defined between the side wall of the mounting channel 13 a and the first support 11 and the second support 12 .

[0073] Specifically, the gap C may be filled with sealant, which forms a solid-like structure after cooling and solidification.

[0074] The type of sealant is not limited. For example, in some embodiments, the sealant can be hot melt adhesive. Hot melt adhesive is a plastic adhesive whose physical state changes with temperature within a certain temperature range, while its chemical properties remain unchanged. It is non-toxic and odorless, making it an environmentally friendly chemical product. Because the product itself is solid, it is easy to package, transport, and store, and is solvent-free, pollution-free, and non-toxic, thus benefiting human health.

[0075] Of course, in other embodiments, the sealant may also be glass glue, etc.

[0076] By filling the space between the second support 12 and the side wall of the installation channel 13a with sealant, the sealing performance between the second support 12 and the housing 13 can be further improved, thereby reducing the risk of aerosol backflow and corrosion of power supply components.

[0077] The installation channel 13a can facilitate the connection between the second support 12 and the housing 13. At the same time, a gap C is formed between the second support 12 and the installation channel 13a, so that welding and sealing can be easily achieved between the two.

[0078] At least part of the first support 11 can also be arranged in the installation channel 13a, so as to facilitate the connection between the first support 11 and the shell 13. At the same time, the gap between the first support 11 and the installation channel 13a can be easily welded and sealed.

[0079] As shown in FIG. 3 , in some embodiments, one end of the heating element 14 is sealedly connected to the first support 11 .

[0080] In this embodiment, one end of the heating element 14 connected to the first support 11 is equivalent to achieving double sealing. The heating element 14 and the first support 11 are sealed and connected to form a first seal, and the outer shell 13 and the first support 11 are sealed and connected to form a second seal. In this way, it is further ensured that the aerosol generated in the heating chamber 14a will not leak out from the heating component 10.

[0081] It should be noted that the manner of sealing the heating element 14 and the first support 11 is not limited. For example, as shown in FIG3 , in some embodiments, the heating assembly 10 further includes a first sealing member 15 sleeved on the heating element 14, the first support 11 is provided with a first mounting groove 11 b, one end of the heating element 14 is disposed in the first mounting groove 11 b, and the first sealing member 15 is in sealing engagement with the groove wall of the first mounting groove 11 b.

[0082] One end of the heating element 14 is disposed in the first mounting groove 11 b . The first mounting groove 11 b facilitates the connection between the heating element 14 and the first support 11 . The first mounting groove 11 b also has a certain limiting effect on one end of the heating element 14 .

[0083] The shape of the first mounting groove 11 b is not limited, and it can be a shape matching the side wall of the heating element 14 .

[0084] The material of the first sealing member 15 is not limited. For example, it can be silicone. The first sealing member 15 made of silicone is not easy to separate harmful substances when heated, which is beneficial to human health.

[0085] The first sealing member 15 and the groove wall of the first installation groove 11 b can be sealed by interference fit, thereby improving the sealing performance of the connection between the heating element 14 and the first installation groove 11 b.

[0086] It should be noted that the first mounting groove 11 b and the first vent hole 11 a are arranged along the axial direction of the heating element 14 and are in communication with each other.

[0087] The diameter of the first mounting groove 11b near the first vent hole 11a is larger than the diameter of the first vent hole 11a near the first mounting groove 11b, that is, a step surface facing the heating element 14 is formed at the connection point between the first mounting groove 11b and the first vent hole 11a, and this step surface can limit the axial position of the heating element 14.

[0088] As shown in FIG. 3 , in some embodiments, the diameter of the first mounting groove 11 b and the thickness of the first sealing member 15 gradually increase from the first support 11 to the second support 12 .

[0089] In the related art, a first seal is generally set in the first installation groove, and then the heating element is inserted into the inner ring of the first seal. However, in the process of inserting the heating element into the inner ring of the first seal, the heating element can easily damage the inner ring of the first seal, especially the heating element with a flared structure, which is more likely to damage the inner ring of the first seal, thereby resulting in low production efficiency of the heating component and poor sealing performance.

[0090] In the heating assembly 10 of this embodiment, the first seal 15 can be sleeved on the heating element 14, and the first mounting groove 11b is designed to be expanded. The expansion direction of the first mounting groove 11b is opposite to the installation direction of the heating element 14. During the process of installing the heating element 14 carrying the first seal 15 into the first mounting groove 11b, the size of the first mounting groove 11b gradually shrinks, thereby reducing the possibility of the first seal 15 being damaged. The first seal 15 has a better sealing effect between the heating element 14 and the groove wall of the first mounting groove 11b. At the same time, the heating assembly 10 with this structure is easier to assemble, thereby improving production efficiency.

[0091] The relationship between the thickness dimension change of the first sealing member 15 and the diameter dimension change of the first mounting groove 11b is similar. Thus, after the heating component 10 is assembled, the gap between the heating element 14 and the groove wall of the first mounting groove 11b can basically be sealed by the first sealing member 15, thereby improving the sealing performance of the heating component 10.

[0092] In addition, after the gap between the heating element 14 and the groove wall of the first installation groove 11b is basically filled with the first sealing member 15, the heating element 14 is not prone to shaking in the first installation groove 11b, thereby improving the installation stability of the heating element 14 in the first installation groove 11b.

[0093] As shown in FIG. 3 and FIG. 4 , in some embodiments, the other end of the heating element 14 is sealedly connected to the second support 12 .

[0094] In this embodiment, the end where the heating element 14 is connected to the second support 12 is also equivalent to achieving double sealing. The heating element 14 and the second support 12 are sealed and connected to form a first seal, and the outer shell 13 and the second support 12 are sealed and connected to form a second seal. In this way, it is further ensured that the aerosol generated in the heating chamber 14a will not leak out from the heating component 10.

[0095] It should be noted that the manner in which the heating element 14 is sealed and connected to the second support 12 is also not limited. As shown in Figures 3 and 4, in some embodiments, the heating assembly 10 further includes a second sealing member 16 that is sleeved on the heating element 14, and the second support 12 is provided with a second mounting groove 12b. The other end of the heating element 14 is disposed in the second mounting groove 12b, and the second sealing member 16 is in sealing engagement with the groove wall of the second mounting groove 12b.

[0096] The other end of the heating element 14 is disposed in the second mounting groove 12 b . The second mounting groove 12 b facilitates the connection between the heating element 14 and the second support 12 . Meanwhile, the second mounting groove 12 b also has a certain limiting effect on the heating element 14 .

[0097] The shape of the second mounting groove 12 b is also not limited, and it can be a shape that matches the side wall of the heating element 14 .

[0098] The material of the second sealing member 16 is not limited. For example, it can be silicone. The second sealing member 16 made of silicone is not easy to separate harmful substances when heated, which is beneficial to human health.

[0099] The second sealing member 16 and the groove wall of the second installation groove 12b can be sealed by interference fit, thereby improving the sealing performance of the connection between the heating element 14 and the second installation groove 12b.

[0100] It should be noted that the second mounting groove 12 b and the second vent hole 12 a are arranged along the axial direction of the heating element 14 and are in communication with each other.

[0101] The diameter of the second mounting groove 12b near the second vent hole 12a is larger than the diameter of the second vent hole 12a near the second mounting groove 12b, that is, a step surface facing the heating element 14 is formed at the connection between the second mounting groove 12b and the second vent hole 12a, and this step surface can limit the axial position of the heating element 14.

[0102] As shown in FIG2 , in some embodiments, a wire routing slot 12c is provided on the sidewall of the second support 12. The wire routing slot 12c extends from the first support 11 toward the second support 12 and is used to route the heating element 14. This facilitates electrical connection between the silver wires of the heating element 14 and the power supply assembly.

[0103] As shown in FIG. 2 to FIG. 4 , in some embodiments, the wire groove 12 c is filled with sealant.

[0104] The type of sealant is not limited and can be, for example, glass glue, hot melt glue, etc.

[0105] Specifically, after the wires are routed in the wire trough 12c, the wires may not occupy the entire space in the wire trough 12c. The wire trough 12c is further filled with sealant, thereby improving the sealing performance of the wire trough 12c.

[0106] As shown in FIG. 2 to FIG. 4 , in some embodiments, the wire groove 12 c is disposed on the outer side wall of the second support 12 .

[0107] The wire groove 12c is located on the outer side wall of the second support 12, that is, located on the outer side of the second support 12. In this way, it is convenient for operators to operate during the wiring of the heating element 14.

[0108] In addition, when the second vent hole 12a is provided inside the second support 12, the wire groove 12c is provided on the outer wall of the second support 12. The wire groove 12c and the second vent hole 12a can be independent of each other and will not affect each other.

[0109] An embodiment of the present application provides an aerosol generating system, which includes an aerosol generating substrate and an aerosol generating device of any embodiment of the present application. The aerosol generating device has a containing chamber, and the aerosol generating substrate is arranged in the containing chamber. The heating element of the aerosol generating device is used to heat the aerosol generating substrate.

[0110] The containing chamber provides a containing space for the aerosol generating substrate. The aerosol generating substrate can be heated by the heating element in the containing chamber to generate aerosol.

[0111] The shape and size of the storage chamber are not limited, as long as they can accommodate the aerosol generating substrate.

[0112] As shown in Figures 5 to 8, an embodiment of the present application provides an aerosol generating device, which includes a power supply assembly and a heating assembly 10 according to any embodiment of the present application. The heating assembly 10 includes a heating element 18, and the power supply assembly is electrically connected to the heating element 18.

[0113] The power supply assembly is primarily used to power the heating element 18 and control the entire aerosol-generating device, such as turning it on and off. When powered, the heating element 18 heats the aerosol-generating substrate to produce an aerosol for the user to consume. The aerosol-generating substrate includes, but is not limited to, materials used for medical, health, wellness, and cosmetic purposes. For example, the aerosol-generating substrate includes, but is not limited to, pharmaceuticals, nicotine-containing materials, or nicotine-free materials.

[0114] It should be noted that the specific type of the aerosol generating device provided in the embodiments of the present application is not limited. For example, the aerosol generating device can be a medical atomizing device, an air humidifier, or an atomizing device such as an electronic cigarette.

[0115] As shown in Figures 5 to 8 , an embodiment of the present application provides a heating assembly 10 for use in an aerosol generating device. The heating assembly 10 includes a mounting support 17, a heating element 18, and a first sealing element 15. The mounting support 17 has a mounting groove 17a. The heating element 18 is used to heat the aerosol generating substrate. The heating element 18 has two axial ends, a first end 141 and a second end 142, respectively. The first end 141 is disposed within the mounting groove 17a. The first sealing element 15 is sealingly sandwiched between the outer peripheral wall of the heating element 18 and the groove wall of the mounting groove 17a. The outer peripheral wall of the heating element 18 is also provided with a limiting surface 19a facing the first end 141, and the first sealing element 15 abuts against the limiting surface 19a.

[0116] The specific structural form of the mounting bracket 17 is not limited, as long as it can be used to install and fix the heating element 18.

[0117] The shape of the heating element 18 is not limited. For example, as shown in Figure 8, in some embodiments, the heating element 18 is generally tubular. Of course, in other embodiments, the heating element 18 can also be other shapes such as a square column.

[0118] The first end 141 of the heating element 18 is disposed in the mounting groove 17 a . The mounting groove 17 a facilitates the connection between the heating element 18 and the mounting support 17 . The mounting groove 17 a also has a certain limiting effect on the first end 141 of the heating element 18 .

[0119] The material of the first sealing member 15 is not limited. For example, it can be silicone. The first sealing member 15 made of silicone is not easy to separate harmful substances when heated, which is beneficial to human health.

[0120] The first sealing member 15 and the groove wall of the installation groove 17a can be sealed by interference fit, thereby improving the sealing performance of the connection between the first end 141 of the heating member 18 and the installation groove 17a.

[0121] During the assembly process of the heating component 10, the first sealing member 15 can be first sleeved on the first end 141 of the heating member 18, and then a force can be applied to the heating member 18 along the second end 142 of the heating member 18 in the direction of the first end 141 of the heating member 18, forcing the first end 141 of the heating member 18 to extend into the mounting groove 17a, and under the action of the limiting surface 19a, the first sealing member 15 can also gradually extend into the mounting groove 17a, so that the first sealing member 15 can be interference fit between the groove wall of the mounting groove 17a and the peripheral wall of the heating member 18, and realize the sealed installation between the heating member 18 and the mounting support 17.

[0122] In the related art, when assembling the heating component, the first sealing member is sleeved on the heating member and as the heating member is installed in the mounting groove, the heating member moves along the second end toward the first end under the action of the force. Due to the friction between the first sealing member and the groove wall of the mounting groove, relative sliding occurs between the first sealing member and the heating member, causing the first sealing member to be unable to be assembled into place and the assembly to be unqualified, thereby affecting the production efficiency of the heating component.

[0123] In the heating assembly provided in the embodiment of the present application, a limiting surface 19a facing the first end 141 is provided on the outer peripheral wall of the heating element 18. During the assembly process of the heating assembly 10, a force is applied to the heating element 18 along the second end 142 of the heating element 18 toward the first end 141 of the heating element 18. Under the action of this force, the first end 141 of the heating element 18 can gradually extend into the installation groove 17a, and the side of the first sealing member 15 close to the second end 142 of the heating member 18 abuts against the limiting surface 19a. Under the action of the limiting surface 19a, the first sealing member 15 can also overcome the friction between it and the groove wall of the installation groove 17a. The first sealing member 15 and the heating member 18 are connected to each other in a sealed manner, so that the first sealing member 15 can be installed in a sealed manner in the mounting groove 17a. During the assembly of the heating component 10, the limiting surface 19a can transmit the force to the first sealing member 15, and the first sealing member 15 and the heating member 18 can achieve synchronous movement, thereby reducing the probability of the first sealing member 15 sliding on the heating member 18, thereby improving the assembly qualification rate of the first sealing member 15, and the first sealing member 15 is easier to be installed in place at one time, thereby improving the production efficiency of the heating component 10.

[0124] As shown in FIG6 to FIG8, in some embodiments, the mounting support 17 is provided with an air hole 17b communicating with the mounting groove 17a, and the heating element 18 has a heating cavity 14a therein, and the heating cavity 14a is communicated with the outside through the air hole 17b.

[0125] It will be appreciated that the function of first seal 15 is to seal the connection between heating chamber 14a and air hole 17b. The aerosol-generating substrate is heated within heating chamber 14a to generate aerosol. First seal 15 can effectively prevent the aerosol from escaping through the gap between heating element 18 and the wall of mounting groove 17a.

[0126] The air hole 17b can serve as either an outlet or an inlet for the heating chamber 14a. When used as an outlet, the user can extract the aerosol generated within the heating chamber 14a through the air hole 17b. When used as an inlet, air flows through the air hole 17b into the heating chamber 14a and carries the aerosol generated within the heating chamber 14a out of the heating chamber 14a.

[0127] It should be noted that the form of the aerosol-generating substrate is not limited. For example, it can be solid. The aerosol-generating substrate can include tobacco material.

[0128] As shown in Figures 6 and 7, in some embodiments, the mounting support 17 has a through hole 17c, which passes through both ends of the mounting support 17 along the axial direction of the heating element 18. A step surface 17d facing the heating element 18 is formed on the hole wall of the through hole 17c. The portion of the through hole 17c extending along the step surface 17d toward the heating element 18 is formed as a mounting groove 17a, and the portion of the through hole 17c extending along the step surface 17d away from the heating element 18 is formed as an air hole 17b.

[0129] The step surface 17d extends along the circumference of the through hole 17c, and its specific extension length is not limited. For example, the step surface 17d can be extended along the circumference of the through hole 17c, or the step surface 17d can extend along the circumference of the through hole 17c for a distance.

[0130] It should be noted that when the step surface 17d extends a distance along the circumference of the through hole 17c, the number of the step surfaces 17d is not limited and can be only one section or multiple sections.

[0131] The stepped surface 17d can limit the depth of the heating element 18 extending into the through hole 17c. When the first end 141 of the heating element 18 abuts against the stepped surface 17d, the heating element 18 cannot move further into the through hole 17c.

[0132] As shown in Figures 5, 6 and 8, in some embodiments, the heating element 18 includes a heating element 14 and a limiting member 19 mounted on the heating element 14, and the end surface of the limiting member 19 facing the first end 141 constitutes a limiting surface 19a, and the heating element 14 and the limiting member 19 are split structures.

[0133] It should be noted that there is no restriction on the order in which the stopper 19 and the first sealing member 15 are installed on the heating element 14. The stopper 19 can be installed first and then the first sealing member 15 so that the first sealing member 15 abuts against the stopper 19, or the first sealing member 15 can be installed first and then the stopper 19 so that the first sealing member 15 abuts against the stopper 19.

[0134] It should be noted that, in this embodiment, the two ends of the heating element 14 along the axial direction respectively constitute the first end 141 of the heating element 18 and the second end 142 of the heating element 18 , and the heating element 14 further has a heating cavity 14 a .

[0135] Generally speaking, the heating element 14 is formed into a flared structure at the first end 141 . Thus, during the process of installing the first sealing member 15 onto the heating element 14 , the first sealing member 15 cannot be installed due to the influence of the flared structure and the limiting surface 19 a .

[0136] In this embodiment, the heating element 14 and the limiting member 19 are designed as a split structure. When installing the first sealing member 15, the first sealing member 15 can be mounted on the heating element 14 through the second end 142 of the heating element 14, and moved along the axial direction of the heating element 14 to the vicinity of the flared structure of the first end 141 of the heating element 14, and then the limiting member 19 is installed on the heating element 14 in the same manner. In this way, the installation of the first sealing member 15 can be achieved.

[0137] Of course, in other embodiments, the heating element 14 and the limiting member 19 may also be an integrated structure. In the heating element 18 of this structure, the first end 141 of the heating element 14 cannot adopt a flared structure.

[0138] There is no limitation on the type of the limiting member 19. In some embodiments, the limiting member 19 is a heat shrink tube.

[0139] Heat shrink tubing is a special polyolefin heat shrink tubing. It's made of a high-quality, soft, cross-linked polyolefin outer layer and a hot-melt adhesive inner layer. The outer layer is insulated, corrosion-resistant, and wear-resistant, while the inner layer has a low melting point, waterproof seal, and high adhesion.

[0140] The heat shrink tube can be attached to the heating element 14 by heat shrinking, making installation more convenient.

[0141] The heat shrink tube has the property of shrinking at high temperatures, and is less likely to fail in position under the influence of the heat generated by the heating element 14 , thereby improving the reliability and service life of the heating assembly 10 .

[0142] As shown in FIG. 6 , in some embodiments, the diameter of the mounting groove 17 a gradually increases from the first end 141 to the second end 142 .

[0143] In the related art, a first seal is generally set in the installation groove first, and then the heating element is inserted into the inner ring of the first seal. However, in the process of inserting the heating element into the inner ring of the first seal, the heating element can easily overturn the inner ring of the first seal, especially the heating element with a flared structure, which is more likely to overturn the inner ring of the first seal, resulting in low production efficiency of the heating component and poor sealing performance.

[0144] In the heating assembly 10 of this embodiment, the first seal 15 is first mounted on the heating element 18. The mounting groove 17a is then expanded in a direction opposite to the installation direction of the heating element 18. As the heating element 18, carrying the first seal 15, is installed within the mounting groove 17a, the size of the mounting groove 17a gradually shrinks, thereby reducing the possibility of the first seal 15 being overturned. The first seal 15 provides a better sealing effect between the heating element 18 and the groove wall of the mounting groove 17a. Furthermore, this structure of the heating assembly 10 facilitates assembly, thereby improving production efficiency.

[0145] It should be noted that the thickness of the first sealing member 15 along the direction from the first end 141 to the second end 142 is not limited. For example, in some embodiments, the thickness of the first sealing member 15 remains unchanged. In such embodiments, at least the portion of the gap between the groove wall of the mounting groove 17a and the heating element 18 near the first end 141 can be sealed by the first sealing member 15.

[0146] In other embodiments, as shown in FIG. 6 , the thickness of the first sealing member 15 gradually increases from the first end 141 to the second end 142 , and the outer sidewall of the first sealing member 15 is adapted to the groove wall of the mounting groove 17 a .

[0147] The outer wall of the first sealing member 15 is adapted to the groove wall of the installation groove 17 a , which means that the outer wall of the first sealing member 15 and the groove wall of the installation groove 17 a can be sealed and fitted together.

[0148] It can be understood that the relationship between the thickness dimension change of the first sealing member 15 is similar to the relationship between the diameter dimension change of the mounting groove 17a. In this way, after the heating component 10 is assembled, the gap between the heating member 18 and the groove wall of the mounting groove 17a can basically be sealed by the first sealing member 15, thereby improving the sealing performance of the heating component 10.

[0149] In addition, after the gap between the heating element 18 and the groove wall of the installation groove 17a is basically filled with the first sealing member 15, the heating element 18 is less likely to shake in the installation groove 17a, thereby improving the installation stability of the heating element 18 in the installation groove 17a.

[0150] As shown in FIG. 6 and FIG. 7 , in some embodiments, the space formed by the groove wall of the installation groove 17 a is in the shape of a truncated cone.

[0151] The truncated cone-shaped installation groove 17a has a better smoothness of the groove wall along the circumferential direction. In this way, when the heating element 18 is installed in the installation groove 17a, it can be installed at any angle. The assembler does not need to adjust the installation angle of the heating element 18, thereby improving production efficiency.

[0152] As shown in FIG. 6 , in some embodiments, the first sealing member 15 is in a frustum shape.

[0153] It can be understood that in this embodiment, the space formed by the outer wall of the first seal 15 can be in the shape of a truncated cone. In this way, when the space formed by the groove wall of the installation groove 17a is also in the shape of a truncated cone, the fit between the first seal 15 and the groove wall of the installation groove 17a along the circumferential direction is equivalent to the fit between the inner circle and the outer circle. In this way, the first seal 15 and the groove wall of the installation groove 17a can achieve a better tight fit and seal along the circumferential direction.

[0154] In the description of this application, the descriptions with reference to the terms "in one embodiment", "in some embodiments", "in other embodiments", "in yet other embodiments", or "exemplary" etc. mean 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 embodiments of the present application. In this application, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art may combine different embodiments or examples described in this application and features of different embodiments or examples, unless they are mutually inconsistent.

[0155] The above are merely preferred embodiments of the present application and are not intended to limit the present application. Persons skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application are intended to be within the scope of protection of the present application.

Claims

1. A heating assembly for an aerosol generating device, comprising: A first support having a first vent hole; Second support; a housing, wherein opposite ends of the housing are respectively sealedly connected to the first support and the second support, and the housing, the first support, and the second support define a mounting cavity; A heating element having a heating cavity inside is provided in the installation cavity, one end of the heating cavity is connected to the outside through the first vent hole, and the heating element is used to heat the aerosol generating matrix.

2. The heating assembly according to claim 1, wherein The first support is connected to the shell by welding; and / or the second support is connected to the shell by welding.

3. The heating assembly according to claim 1, wherein The housing has mounting channels running through opposite ends of the housing, at least a portion of the second support is disposed in the mounting channels, and a sealant is filled between the second support and a side wall of the mounting channels.

4. The heating assembly according to any one of claims 1 to 3, wherein: One end of the heating element is sealed and connected to the first support; and / or the other end of the heating element is sealed and connected to the second support.

5. The heating assembly according to claim 4, wherein The heating assembly also includes a first sealing member sleeved on the heating element, a first mounting groove is provided on the first support, one end of the heating element is provided in the first mounting groove, and the first sealing member is sealed with the groove wall of the first mounting groove.

6. The heating assembly according to claim 5, wherein Along the direction from the first support to the second support, the diameter of the first installation groove and the thickness of the first sealing member gradually increase.

7. The heating assembly according to claim 4, wherein The heating assembly also includes a second sealing member sleeved on the heating element, a second mounting groove is provided on the second support, the other end of the heating element is provided in the second mounting groove, and the second sealing member is sealed with the groove wall of the second mounting groove.

8. The heating assembly according to any one of claims 1 to 3, wherein: A wire passing groove is provided on the side wall of the second support, and the wire passing groove extends from the first support to the second support, and the wire passing groove is used for routing the heating element.

9. The heating assembly according to claim 8, wherein The wire groove is filled with sealant.

10. The heating assembly according to claim 8, wherein The wire groove is arranged on the outer side wall of the second support.

11. An aerosol generating device, comprising a power supply component and the heating component according to any one of claims 1 to 10, wherein the power supply component is electrically connected to the heating element.

12. An aerosol generating system, comprising an aerosol generating substrate and the aerosol generating device according to claim 11, wherein the aerosol generating device has a containing chamber, the aerosol generating substrate is arranged in the containing chamber, and the heating element is used to heat the aerosol generating substrate.

13. A heating assembly for an aerosol generating device, the heating assembly comprising: A mounting support having a mounting slot; a heating element, for heating the aerosol-generating substrate, wherein the two ends of the heating element along its axial direction are respectively a first end and a second end, and the first end is disposed in the mounting groove; a first sealing member, the sealing member being sandwiched between the outer peripheral wall of the heating member and the groove wall of the mounting groove; Wherein, a limiting surface facing the first end is further provided on the outer peripheral wall of the heating element, and the first sealing element abuts against the limiting surface.

14. The heating assembly of claim 13, wherein: The heating element includes a heating element and a limiting element sleeved on the heating element. The end surface of the limiting element facing the first end constitutes the limiting surface. The heating element and the limiting element are split structures.

15. The heating assembly of claim 14, wherein: The limiting component is a heat shrink tube.

16. The heating assembly according to any one of claims 13 to 15, wherein: The diameter of the installation groove gradually increases from the first end to the second end.

17. The heating assembly of claim 16, wherein: The thickness of the first sealing member gradually increases from the first end to the second end, and the outer side wall of the first sealing member is adapted to the groove wall of the installation groove.

18. The heating assembly according to any one of claims 13 to 15, wherein: The space formed by the groove wall of the installation groove is in the shape of a truncated cone; and / or the first sealing member is in the shape of a truncated cone.

19. The heating assembly according to any one of claims 13 to 15, wherein: The mounting support is provided with an air hole communicating with the mounting groove, and the heating element has a heating cavity inside, and the heating cavity is communicated with the outside through the air hole.

20. The heating assembly of claim 19, wherein The mounting support has a through hole, which passes through both ends of the mounting support along the axial direction of the heating element. A step surface facing the heating element is formed on the hole wall of the through hole. The portion of the through hole extending along the step surface close to the heating element is formed as the mounting groove, and the portion of the through hole extending along the step surface away from the heating element is formed as the air hole.

21. An aerosol generating device, comprising a power supply assembly and the heating assembly according to any one of claims 13 to 20, wherein the power supply assembly is electrically connected to the heating element.

22. An aerosol generating system, comprising an aerosol generating substrate and the aerosol generating device according to claim 21, wherein the aerosol generating device has a containing chamber, the aerosol generating substrate is arranged in the containing chamber, and the heating element is used to heat the aerosol generating substrate.

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