Heating assembly and aerosol-generating device

Abstract

The application provides a heating assembly and an aerosol generating device. The heating assembly comprises a cylinder body defining a receiving cavity extending along a first direction, a length of the receiving cavity along the first direction being not less than a length of the aerosol generating substrate section, the cylinder body comprising a heating area and a heat conduction area arranged along the first direction, an area S1 of the heating area accounting for 50-70% of an area S of the cylinder body, and an area S2 of the heat conduction area accounting for 30-50% of the area S of the cylinder body. The heating assembly of the application can improve energy utilization rate, reduce heat loss, uniformly heat the aerosol generating substrate section, avoid local inactivation or excessive decomposition, and improve aerosol generation efficiency.

Description

Technical Field

[0001] This application relates to the field of aerosol technology, and in particular to a heating component and an aerosol generating device. Background Technology

[0002] Heating components are widely used in aerosol generation devices to conduct heat to the aerosol generation matrix section, thereby enabling the thermal release of the target substance. Traditional heating components typically employ an integral heating tube structure, where the entire cylinder heats up uniformly, with heat distribution concentrated in the center of the heating area. This results in some heat energy not being effectively transferred to the entire matrix section, leading to low energy utilization.

[0003] Existing technologies reduce heat loss and improve thermal response speed by shortening the axial length of the heating tube and using a metal connector as an auxiliary heat conduction path. However, this structure results in insufficient heating in some areas of the matrix section due to the shortened effective heating area, affecting the full generation and release of aerosols and thus reducing the utilization rate of aerosols. Utility Model Content

[0004] This application provides a heating component and an aerosol generating device, which improves energy utilization and reduces heat loss, while ensuring uniform heating of the aerosol generating matrix section, avoiding local inactivation or excessive decomposition, and improving the aerosol generation efficiency.

[0005] On one hand, this application provides a heating assembly for heating an aerosol generating matrix segment, comprising: a cylinder defining a receiving cavity extending along a first direction, the length of the receiving cavity along the first direction being not less than the length of the aerosol generating matrix segment, the cylinder including a heating zone and a heat-conducting zone arranged along the first direction, the area S1 of the heating zone accounting for 50%-70% of the area S of the cylinder, and the area S2 of the heat-conducting zone accounting for 30%-50% of the area S of the cylinder.

[0006] The heating component of this invention divides the cylinder into a heating zone and a heat-conducting zone arranged along a first direction, forming an integrated heat generation and heat conduction structure. During operation, heat is generated in the heating zone, directly heating the aerosol generation matrix section corresponding to that zone. Simultaneously, heat is transferred from the heating zone to the heat-conducting zone via heat conduction, causing the temperature of the heat-conducting zone to rise and thus heating the distal region of the aerosol generation matrix section corresponding to the heat-conducting zone. Since the length of the accommodating cavity is not less than the length of the aerosol generation matrix section, the combined effect of the heating and heat-conducting zones ensures a sufficient and uniform thermal response in the entire aerosol generation matrix section along the axial direction, achieving stable aerosol generation.

[0007] In some embodiments, the operating temperature of the heating zone is 260℃-310℃; the operating temperature of the end of the heat-conducting zone facing the heating zone is 260℃-310℃, and the operating temperature of the end of the heat-conducting zone away from the heating zone is 150℃-200℃.

[0008] According to some embodiments of this utility model, the heating area and the heat-conducting area are made of the same material.

[0009] According to some embodiments of this utility model, the heating zone and the heat-conducting zone are made of different materials. The thermal conductivity of the heating zone is 2W / (m*K)-300W / (m*K), and the thermal conductivity of the heat-conducting zone is 15W / (m*K)-400W / (m*K). The thermal conductivity of the heat-conducting zone does not exceed the thermal conductivity of the heating zone.

[0010] In some embodiments, the heating area is welded to the heat-conducting area, or the heating area and the heat-conducting area are integrally formed.

[0011] In some embodiments, the wall thickness of the heating zone is 0.05mm-1mm, and the wall thickness of the heat-conducting zone is equal to the wall thickness of the heating zone.

[0012] In some embodiments, the heating area and the heat-conducting area are both axisymmetric structures, and / or the heating area and the heat-conducting area are arranged coaxially, and / or the projection of the heating area in the reference plane coincides with the projection of the heat-conducting area in the reference plane, and the reference plane is perpendicular to the first direction.

[0013] Secondly, this application provides an aerosol generating device, comprising: a housing, an installation cavity defined within the housing, the installation cavity having an opening at one end along a first direction; the aforementioned heating assembly disposed in the installation cavity; a heating power supply device disposed in the installation cavity for heating the heating area; and a control device disposed in the housing, the control device being electrically connected to the heating power supply device.

[0014] This aerosol generating device utilizes the aforementioned heating component. When the user inserts the aerosol generating matrix section into the receiving cavity of the heating component through the shell opening, the control device activates the heating power supply device, supplying power to the heating zone of the heating component. This causes the heating zone to heat up rapidly, and the heat is transferred to the heat conduction zone through thermal conduction. This maintains a high temperature in the portion of the aerosol generating matrix section corresponding to the heating zone, while the distal end corresponding to the heat conduction zone also receives heat, forming a stable axial temperature gradient. The entire aerosol generating matrix section is uniformly activated along its entire length, releasing the target component. This reduces heat loss while improving aerosol utilization efficiency and avoids situations where parts of the aerosol generating matrix section remain unheated.

[0015] In some embodiments, the heating power supply device heats the heating area by at least one of resistance heating, electromagnetic heating, or infrared heating.

[0016] According to some embodiments of the present invention, a partition is provided in the mounting cavity, and a mounting seat is provided in the partition. The mounting seat has a groove facing the opening along the first direction. The cylinder of the heating component is detachably disposed in the groove. When the aerosol generating matrix section is inserted into the aerosol generating device along the first direction, the bottom wall of the aerosol generating matrix section is flush with the end wall of the heat-conducting area of ​​the cylinder that is away from the heating area. Attached Figure Description

[0017] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0018] Figure 1 This is a schematic diagram of the structure of a heating assembly according to an embodiment of the present invention;

[0019] Figure 2 This is a cross-sectional view of a heating assembly according to another embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of the connection between the heating assembly and the heating element according to one embodiment of the present invention;

[0021] Figure 4 This is a cross-sectional view of the connection between the heating assembly and the heating element according to an embodiment of the present invention;

[0022] Figure 5 This is a schematic diagram of the connection between the heating assembly and the heating element according to another embodiment of the present invention;

[0023] Figure 6 This is a cross-sectional view of the connection between the heating assembly and the heating element according to another embodiment of the present invention;

[0024] Figure 7 This is a schematic diagram of the aerosol generating device according to an embodiment of the present invention.

[0025] Explanation of reference numerals in the attached figures:

[0026] 100 - Heating component;

[0027] 110 - Cylinder body; 1100 - Receiving cavity; 111 - Heating zone; 112 - Heat conduction zone;

[0028] 200-Aerosol generating device;

[0029] 210 - Housing; 211 - Mounting cavity; 212 - Opening; 213 - Partition; 214 - Mounting base;

[0030] 220 - Heating and energy supply device; 221 - Energy storage device; 222 - Connecting component;

[0031] 230 - Control device.

[0032] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0033] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0034] Heating components are widely used in aerosol generation devices to conduct heat to the aerosol generation matrix section, thereby enabling the thermal release of the target substance. Traditional heating components typically employ an integral heating tube structure, where the entire cylinder heats up uniformly, with heat distribution concentrated in the center of the heating area. This results in some heat energy not being effectively transferred to the entire matrix section, leading to low energy utilization.

[0035] Existing technologies reduce heat loss and improve thermal response speed by shortening the axial length of the heating tube and using a metal connector as an auxiliary heat conduction path. However, this structure results in insufficient heating in some areas of the matrix section due to the shortened effective heating area, affecting the full generation and release of aerosols and thus reducing the utilization rate of aerosols.

[0036] In view of this, this application provides a heating component and an aerosol generating device, which improves energy utilization, reduces heat loss, and ensures uniform heating of the aerosol generating matrix section, avoiding local inactivation or excessive decomposition, thereby improving the aerosol generation efficiency.

[0037] The technical solution of this application and how the technical solution of this application solves the above-mentioned technical problems are described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of this application will now be described with reference to the accompanying drawings.

[0038] For ease of description and understanding, the first direction can be the direction of the axial extension of the aerosol generation matrix segment, that is... Figure 7 The X direction is shown. Simultaneously, when the aerosol generating device is operating, the end of the aerosol generating matrix section along the first direction corresponding to the heating zone is defined as the proximal end, and the end corresponding to the heat-conducting zone is defined as the distal end.

[0039] refer to Figures 1 to 7 On the one hand, this application provides a heating component 100, which is disposed in an aerosol generating device 200 for heating the aerosol generating matrix section.

[0040] The heating assembly 100 includes a cylinder 110, which defines a receiving cavity 1100. The receiving cavity 1100 extends through or partially extends through the cylinder 110 along a first direction to provide a placement space for the aerosol generating matrix segment. The length of the receiving cavity 1100 along the first direction is not less than the length of the aerosol generating matrix segment, ensuring that the aerosol generating matrix segment can be completely placed within the heating range of the cylinder 110. This ensures that the aerosol generating matrix segment is uniformly heated in the axial direction, avoiding local overheating or underheating, and improving the uniformity and integrity of the thermal effect on the aerosol generating matrix segment.

[0041] The cylinder 110 includes a heating zone 111 and a heat-conducting zone 112 arranged along a first direction. The heating zone 111 is located in a portion of the cylinder 110 and mainly functions to generate heat. For example, the heating zone 111 may be coated with a heating resistor coating, which is electrically connected to the heating power supply device 220. When energized, the heating zone 111 generates heat. Alternatively, a heating resistor circuit may be provided within the heating zone 111, which is electrically connected to the heating power supply device 220. When energized, the heating zone 111 generates heat. In this way, the heating zone 111 efficiently converts electrical energy into heat energy, forming a high-temperature heat source and rapidly increasing the local temperature. When the heating zone 111 is working, the heat-conducting zone 112 absorbs the heat from the heating zone 111 and transfers it along the axial direction (first direction), achieving extended heat distribution on the cylinder 110 and ensuring full-length coverage of the aerosol generation matrix section.

[0042] The area S1 of the heating zone 111 accounts for 50%-70% of the area S of the cylinder 110, and the area S2 of the heat-conducting zone 112 accounts for 30%-50% of the area S of the cylinder 110. For example, the ratio of the area S1 of the heating zone 111 to the area S of the cylinder 110 can be 50%, 60% or 70%, and correspondingly, the ratio of the area S2 of the heat-conducting zone 112 to the area S of the cylinder 110 can be 50%, 40% or 30%. Of course, the ratio of the area of ​​the cylinder 110 occupied by the heating zone 111 and the heat-conducting zone 112 can also be other values, and this application does not limit this.

[0043] By rationally allocating the areas of the heating zone 111 and the heat conduction zone 112, sufficient area of ​​the cylinder 110 is ensured for heating. On the one hand, this avoids the heating zone 111 being too small, resulting in slow heat generation and conduction, low efficiency in aerosol generation from the heated aerosol matrix section, and a poor user experience. On the other hand, it avoids the heating zone 111 being too large, requiring excessive energy for heating, leading to rapid energy consumption of the heating power supply device 220 and short operating time of the aerosol generation device 200, thus affecting the user experience.

[0044] The heating component 100 of this invention divides the cylinder 110 into a heating zone 111 and a heat-conducting zone 112 arranged along a first direction, forming an integrated heat generation and heat conduction structure. During operation, heat is generated in the heating zone 111, directly heating the aerosol generation matrix section corresponding to the heating zone 111. Simultaneously, heat is transferred from the heating zone 111 to the heat-conducting zone 112 via heat conduction, causing the temperature of the heat-conducting zone 112 to rise, thereby heating the distal region of the aerosol generation matrix section corresponding to the heat-conducting zone 112. Since the length of the receiving cavity 1100 is not less than the length of the aerosol generation matrix section, the synergistic effect of the heating zone 111 and the heat-conducting zone 112 ensures a sufficient and uniform thermal response in the entire aerosol generation matrix section along the axial direction, achieving stable aerosol generation.

[0045] The cylinder 110 forms an integrated structure, eliminating the need for additional independent heat-conducting components or complex connection structures. This simplifies the material types and assembly process of the heating component 100, and reduces the production cost and process difficulty of the aerosol generating device 200.

[0046] By rationally allocating the area ratio of the heating zone 111 to the heat conduction zone 112 (S1 accounts for 50%-70%, S2 accounts for 30%-50%), efficient heat generation and directional conduction are achieved, heat loss is reduced, and the utilization efficiency of thermal energy is improved.

[0047] In some possible embodiments, the heating zone 111 may be located in the middle of the cylinder 110, and heat-conducting zones 112 may be provided at both ends of the cylinder 110 along the first direction. Alternatively, the heating zone 111 and the heat-conducting zone 112 may be located at both ends of the cylinder 110 along the first direction to ensure that all parts of the aerosol generation matrix section are heated, thus avoiding waste caused by some aerosol generation matrix sections not being heated and not generating aerosols.

[0048] In some possible embodiments, a portion of the structure of the heating zone 111 may be recessed in the direction away from the heat conduction zone 112, and a portion of the structure of the heat conduction zone 112 may correspondingly protrude and extend to the heating zone 111, thereby increasing the contact area between the heat conduction zone 112 and the heating zone 111 and thus improving the heat conduction efficiency.

[0049] In some embodiments, the operating temperature of the heating zone 111 is 260°C-310°C. For example, the operating temperature of the heating zone 111 can be 260°C, 270°C, 280°C, 290°C, 300°C or 310°C. Of course, the operating temperature of the heating zone 111 can also be other values, and this application does not limit this.

[0050] On the one hand, it can ensure that the area corresponding to the aerosol generation matrix section and the heating zone 111 is fully heated and responds quickly, and on the other hand, it can avoid local overheating and decomposition of the aerosol generation matrix section or waste of heat energy due to excessive temperature, which is conducive to improving thermal efficiency and the safety of aerosol generation device 200.

[0051] The operating temperature of the end of the heat-conducting area 112 facing the heating area 111 is 260℃-310℃. The operating temperature of this end can be 260℃, 270℃, 280℃, 290℃, 300℃, or 310℃. Of course, the operating temperature of this end can also be other values, and this application does not impose any restrictions on this. It should be noted that the end of the heat-conducting area 112 facing the heating area 111 can serve as the boundary between the heating area 111 and the heat-conducting area 112. Therefore, the operating temperature of this end of the heat-conducting area 112 facing the heating area 111 is the same as the temperature of the heating area 111.

[0052] The high-temperature area at the end of the heat-conducting zone 112 facing the heating zone 111 can continue the thermal effect of the heating zone 111, achieve a smooth transition in the heating zone 111, avoid sudden temperature gradient changes, ensure sufficient heating in the middle of the aerosol generation matrix section, and improve the overall heating continuity of the aerosol generation matrix section.

[0053] The working temperature of the end of the heat-conducting zone 112 away from the heat-generating zone 111 is 150℃-200℃. The working temperature of the end of the heat-conducting zone 112 away from the heat-generating zone 111 can be 150℃, 160℃, 170℃, 180℃, 190℃ or 200℃. Of course, the working temperature of the end of the heat-conducting zone 112 away from the heat-generating zone 111 can also be other values, and this application does not limit it.

[0054] As heat is transferred axially from the near end to the far end along the heat-conducting region 112, it gradually decreases. Due to the thermal resistance of the heat-conducting region 112 material and heat exchange with the external environment, the temperature at the far end naturally decreases and stabilizes in the range of 150℃–200℃. This temperature range can effectively support the stable aerosol generation in the far region of the aerosol generation matrix section, avoiding incomplete activation of the far region of the aerosol generation matrix section along the first direction due to excessively low temperature. At the same time, this temperature is lower than that of the heating region 111, forming a reasonable axial temperature gradient, which helps the orderly distribution of heat, prevents excessive energy concentration, and further improves energy utilization.

[0055] Thus, when the heating component 100 is working, the heating zone 111 rapidly heats up to 260℃–310℃, efficiently heating the proximal and middle regions of the aerosol generation matrix section within the containment cavity 1100. Heat is then conducted axially along the cylinder 110 to the heat-conducting zone 112, causing its end near the heating zone 111 to also reach 260℃–310℃, continuing to participate in the middle section heating. As heat diffuses further away, the temperature at the end of the heat-conducting zone 112 away from the heating zone 111 remains at 150℃–200℃, sufficient to activate the components at the far end of the aerosol generation matrix section. The entire heating process forms a reasonable temperature gradient from high to low, covering the entire length of the aerosol generation matrix section, achieving segmented, synergistic, continuous, and stable thermal action.

[0056] refer to Figure 2 , Figure 3 and Figure 6 According to some embodiments of this utility model, the heating area 111 and the heat-conducting area 112 are made of the same material. Through differences in structural design (such as wall thickness, cross-sectional area, surface treatment, etc.) or circuit design (such as current path, resistance distribution), the same material can perform the main heating function and the main heat-conducting function in different areas respectively. When energized, due to the difference in resistance distribution or geometric structure, the heating area 111 generates concentrated heat, while the heat-conducting area 112 transfers heat axially in a way that generates less heat and conducts more heat.

[0057] Using the same material to manufacture the heating zone 111 and the heat-conducting zone 112 avoids problems such as interface thermal resistance, low bonding strength, and thermal expansion mismatch caused by connecting dissimilar materials. At the same time, it simplifies the material supply chain and processing technology, which is conducive to realizing the integrated molding of the cylinder 110 (such as stamping, stretching, CNC machining, etc.), reducing manufacturing costs, and improving product consistency and reliability.

[0058] Optionally, the heating zone 111 and the heat-conducting zone 112 can both be made of materials such as 304 stainless steel, 430 stainless steel, nickel-chromium alloy or titanium alloy.

[0059] refer to Figure 1 and Figure 5 According to some embodiments of this utility model, the heating zone 111 and the heat-conducting zone 112 are made of different materials. The heating zone 111 and the heat-conducting zone 112 are manufactured separately using different materials and connected into a complete cylinder 110 by welding, pressing, or integrated encapsulation. The heating zone 111 is made of a material with suitable resistivity to achieve efficient electrothermal conversion; the heat-conducting zone 112 is made of a material with better thermal conductivity to improve the axial heat transfer effect along the cylinder 110. This material differentiation design enables functional decoupling, maximizing the material performance of each area—the heating zone 111 focuses on efficient heat generation, and the heat-conducting zone 112 focuses on rapid heat transfer, improving overall thermal management efficiency.

[0060] Optionally, the heating zone 111 can be made of 304 stainless steel, in which case the heat-conducting zone 112 can be made of pure iron or 430 stainless steel; or, the heating zone 111 can be made of 310S stainless steel, in which case the heat-conducting zone 112 can be made of 304 stainless steel. Of course, the heating zone 111 and the heat-conducting zone 112 can also be a combination of other materials, and this application does not limit this.

[0061] The thermal conductivity of the heating zone 111 is 2W / (m*K)-300W / (m*K). For example, the thermal conductivity of the heating zone 111 can be 2W / (m*K), 50W / (m*K), 100W / (m*K), 150W / (m*K), 200W / (m*K), 250W / (m*K), or 300W / (m*K). Of course, the thermal conductivity of the heating zone 111 can also be other values, and this application does not limit it.

[0062] Thus, the thermal conductivity of the heating zone 111 covers material properties ranging from low thermal conductivity (such as some high-resistance alloys) to medium thermal conductivity (such as stainless steel). The lower thermal conductivity helps to reduce lateral heat loss in non-target directions, making heat more concentrated in the axial transfer path (that is, transfer to the heating zone 112).

[0063] The thermal conductivity of the heat-conducting region 112 is between 15 W / (m*K) and 400 W / (m*K), and can be 15 W / (m*K), 50 W / (m*K), 100 W / (m*K), 150 W / (m*K), 200 W / (m*K), 250 W / (m*K), 300 W / (m*K), 350 W / (m*K), or 400 W / (m*K). Of course, the thermal conductivity of the heat-conducting region 112 can also be other values, and this application does not impose any restrictions on this. Furthermore, the thermal conductivity of the heat-conducting region 112 does not exceed the thermal conductivity of the heating region 111.

[0064] The material of the heat-conducting zone 112 has good thermal conductivity, but the thermal conductivity of the heat-conducting zone 112 is not higher than that of the heating zone 111, ensuring that heat is not conducted too quickly from the heating zone 111 to the far end, avoiding the reverse heat flow phenomenon of "front-end cooling and rear-end overheating" in the aerosol generation matrix section, and maintaining a reasonable temperature gradient from near to far.

[0065] In some embodiments, the heating zone 111 and the heat-conducting zone 112 are welded. After the heating zone 111 and the heat-conducting zone 112 are formed by processing the same or different materials, they are physically connected and electrically connected by welding processes (such as laser welding, resistance welding, micro-arc welding, etc.) to form a complete cylindrical body 110 structure. In this way, the cylindrical body 110 can use a combination of dissimilar materials, which facilitates independent material selection according to functional requirements and optimizes the performance of the heating component.

[0066] Alternatively, the heating zone 111 and the heat-conducting zone 112 can also be integrally formed. For example, when the heating zone 111 and the heat-conducting zone 112 are made of the same material, the entire cylinder 110 can be formed in one piece through processes such as stamping, stretching, CNC machining, or powder metallurgy, without the need for subsequent connection processes. There are no welded joints between the heating zone 111 and the heat-conducting zone 112, resulting in high structural integrity of the cylinder 110 and avoiding failures such as cracking and detachment caused by thermal expansion mismatch.

[0067] In some embodiments, the wall thickness of the heating area 111 is 0.05mm-1mm. For example, the wall thickness of the heating area 111 can be 0.05mm, 0.2mm, 0.4mm, 0.6mm, 0.8mm or 1mm. Of course, the wall thickness of the heating area 111 can also be other values, which are not limited in this application.

[0068] The heating zone 111 generates Joule heat through current conduction, and its wall thickness directly affects the resistance, heat capacity, and thermal response speed. A thinner wall thickness can reduce the material volume, lower thermal inertia, and at the same current, increase the current density and enhance the heating efficiency.

[0069] The wall thickness of the heat-conducting zone 112 is equal to that of the heating zone 111. Maintaining the same wall thickness between the heat-conducting zone 112 and the heating zone 111 ensures that the overall structure of the cylinder 110 is uniform and avoids stress concentration or increased processing difficulty caused by sudden changes in wall thickness.

[0070] refer to Figures 1 to 7 In some embodiments, both the heating area 111 and the heat-conducting area 112 are axisymmetric structures. The heating area 111 and the heat-conducting area 112 are rotationally symmetric about the central axis in terms of geometry (such as cylindrical, annular, etc.), which ensures that their physical properties are evenly distributed in the circumferential direction, which is conducive to the uniform passage of current and the uniform generation and transfer of heat.

[0071] The heating zone 111 and the heat conduction zone 112 are arranged coaxially. The heating zone 111 and the heat conduction zone 112 are arranged sequentially along the same central axis to form a continuous axial connection structure, ensuring that heat is smoothly transferred along the first direction (axial direction) and reducing lateral heat loss.

[0072] The projection of the heating area 111 onto the reference plane coincides with the projection of the heat-conducting area 112 onto the reference plane. The reference plane is perpendicular to the first direction. When the heating area 111 and the heat-conducting area 112 are projected onto a plane (such as a cross-section) perpendicular to the first direction (i.e., the axial direction), their projection areas completely overlap. In other words, the heating area 111 and the heat-conducting area 112 have the same outer and inner diameters in the radial direction, maintaining structural consistency. This ensures that the entire cylinder 110 has no abrupt changes or eccentricities in its shape, which is beneficial for simplifying the shell packaging and sealing design.

[0073] refer to Figure 7Secondly, this application provides an aerosol generating apparatus 200, which includes a housing 210, the aforementioned heating component 100, a heating power supply device 220, and a control device 230.

[0074] The housing 210 serves as an integral structural support, protecting the internal components from external environmental influences and providing a human-machine interface. A mounting cavity 211 is defined within the housing 210, and an opening 212 is provided at one end of the mounting cavity 211 along the first direction to facilitate the insertion or replacement of the substrate segment.

[0075] The heating component 100 is disposed in the mounting cavity 211, and the heating power supply device 220 is disposed in the mounting cavity 211 for heating the heating area 111. For example, the heating power supply device 220 typically includes an energy storage device 221 (battery or power management module), outputs DC power and is connected to both ends of the heating area 111 of the heating component 100 through a connector 222 (wire or spring) to provide the electrical energy required for heating.

[0076] A control device 230 (e.g., a PCBA control board) is disposed in the housing 210. The control device 230 is electrically connected to the heating power supply device 220. For example, the control device 230 may include a microcontroller (MCU), a sensor interface, and a drive circuit. It can collect temperature feedback signals (if there is a temperature measuring element) and adjust the output power of the heating power supply device 220 based on a preset program to enable the aerosol generating device 200 to operate in constant temperature, segmented heating, or multi-mode operation.

[0077] The aerosol generating device 200 of this invention, using the aforementioned heating component 100, allows the control device 230 to activate the heating power supply device 220 to supply power to the heating zone 111 of the heating component 100 after the user inserts the aerosol generating matrix segment into the receiving cavity 1100 of the heating component 100 through the opening 212 of the housing 210. This causes the heating zone 111 to heat up rapidly, and the heat is transferred to the heat conduction zone 112 through thermal conduction. This ensures that the portion of the aerosol generating matrix segment corresponding to the heating zone 111 maintains a high temperature, while the distal end corresponding to the heat conduction zone 112 also receives heat, forming a stable axial temperature gradient. The entire aerosol generating matrix segment is uniformly activated along its entire length, releasing the target component. This reduces heat loss while improving aerosol utilization efficiency and preventing parts of the aerosol generating matrix segment from remaining unheated.

[0078] In some embodiments, the heating power supply device 220 heats the heating zone 111 by at least one of resistance heating, electromagnetic heating, or infrared heating.

[0079] refer to Figure 5 and Figure 6For example, the heating power supply device 220 can heat the heating zone 111 by resistance heating. For instance, the surface of the heating zone 111 can be coated with a resistance heating layer, which is electrically connected to the heating power supply device 220 via a connector 222. Alternatively, a heating resistance wire can be provided inside the heating zone 111, and the heating resistance wire is electrically connected to the heating power supply device 220 via a connector 222. Resistance heating offers advantages such as simple structure, fast response, and high heating efficiency.

[0080] refer to Figure 3 and Figure 4 Alternatively, the heating power supply device 220 can heat the heating zone 111 using electromagnetic heating. The connector 222, which is electrically connected to the heating power supply device 220, is spirally wound around the heating zone 111. Heat is generated by inducing eddy currents in the material of the heating zone 111 through an alternating magnetic field. There is no need for electrode contact between the heating component and the heating power supply device 220, which helps to avoid poor contact problems caused by oxidation and corrosion, and improves the long-term reliability of the aerosol generating device 200.

[0081] Alternatively, the heating power supply device 220 can heat the heating area 111 using infrared heating. The heating power supply device 220 can be an infrared lamp or a ceramic heating element. The heating power supply device 220 emits thermal radiation to the heating area 111, which is absorbed by the surface of the heating area 111 and converted into heat energy. The heating is uniform, no current passes through the aerosol generation matrix area, and the safety is high.

[0082] Of course, the heating power supply device 220 can also heat the heating zone 111 in a combination of the two or three heating methods mentioned above.

[0083] refer to Figure 7 According to some embodiments of this utility model, a partition 213 is provided inside the mounting cavity 211. The partition 213 serves as a structural divider inside the housing 210, used to divide functional areas (such as isolating the heating zone from the heating power supply device 220 / control device 230), thereby improving safety and space utilization. The mounting base 214 is integrated on the partition 213 and is used to fix and position the heating assembly 100.

[0084] Mounting base 214 has a groove facing the opening 212 along a first direction. The groove is a receiving structure opened on the mounting base 214, and its shape matches the outer contour of the cylinder 110 of the heating assembly 100 for embedding and limiting the cylinder 110. The groove opening 212 faces the front end of the device (i.e., the direction of substrate insertion), facilitating installation and removal. The groove provides circumferential and radial constraints to ensure that the heating assembly 100 remains coaxial and without offset after installation.

[0085] The cylinder 110 of the heating component 100 is detachably disposed in the groove. For example, the inner wall of the groove is provided with a positioning protrusion, and the outer wall of the heat-conducting section is provided with a recess corresponding to the positioning protrusion. The positioning protrusion is embedded in the groove to avoid disassembly and positioning of the heating component 100. Alternatively, the cylinder 110 can also be fixed in the groove by interference fit, snap-fit ​​structure or magnetic attraction.

[0086] When the aerosol generating matrix section is inserted into the aerosol generating device 200 along the first direction, the bottom wall of the aerosol generating matrix section is flush with the end wall of the heat-conducting zone 112 of the cylinder 110, which is away from the heating zone 111. Thus, when the aerosol generating matrix section is fully inserted, its end (bottom wall) is in the same axial position as the far end face of the heating assembly 100 cylinder 110 (i.e., the end of the heat-conducting zone 112 away from the heating zone 111), achieving physical alignment. This ensures that the entire length of the aerosol generating matrix section is fully contained within the effective heating range, improving the utilization rate of the aerosol generating matrix section.

[0087] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the utility models disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this application are indicated by the following claims.

[0088] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A heating assembly (100) for heating an aerosol generation matrix segment, characterized in that, include: A cylindrical body (110) defines a receiving cavity (1100) extending along a first direction. The length of the receiving cavity (1100) along the first direction is not less than the length of the aerosol generating matrix segment. The cylindrical body (110) includes a heating zone (111) and a heat-conducting zone (112) arranged along the first direction. The area S1 of the heating zone (111) accounts for 50%-70% of the area S of the cylindrical body (110), and the area S2 of the heat-conducting zone (112) accounts for 30%-50% of the area S of the cylindrical body (110).

2. The heating assembly (100) according to claim 1, characterized in that, The operating temperature of the heating zone (111) is 260℃-310℃; The working temperature of the end of the heat-conducting area (112) facing the heat-generating area (111) is 260℃-310℃, and the working temperature of the end of the heat-conducting area (112) away from the heat-generating area (111) is 150℃-200℃.

3. The heating assembly (100) according to claim 2, characterized in that, The heating zone (111) and the heat-conducting zone (112) are made of the same material.

4. The heating assembly (100) according to claim 2, characterized in that, The heating zone (111) and the heat-conducting zone (112) are made of different materials. The thermal conductivity of the heating zone (111) is 2W / (m*K)-300W / (m*K), the thermal conductivity of the heat-conducting zone (112) is 15W / (m*K)-400W / (m*K), and the thermal conductivity of the heat-conducting zone (112) does not exceed the thermal conductivity of the heating zone (111).

5. The heating assembly (100) according to claim 1, characterized in that, The heating area (111) is welded to the heat-conducting area (112), or the heating area (111) and the heat-conducting area (112) are integrally formed.

6. The heating assembly (100) according to any one of claims 1-5, characterized in that, The wall thickness of the heating zone (111) is 0.05mm-1mm, and the wall thickness of the heat-conducting zone (112) is equal to that of the heating zone (111).

7. The heating assembly (100) according to any one of claims 1-5, characterized in that, The heating area (111) and the heat-conducting area (112) are both axisymmetric structures, and / or the heating area (111) and the heat-conducting area (112) are arranged coaxially, and / or the projection of the heating area (111) in the reference plane coincides with the projection of the heat-conducting area (112) in the reference plane, and the reference plane is perpendicular to the first direction.

8. An aerosol generating device (200), characterized in that, include: The housing (210) defines a mounting cavity (211) within the housing (210), and the mounting cavity (211) has an opening (212) at one end along a first direction. The heating assembly (100) according to any one of claims 1-7, wherein the heating assembly (100) is disposed in the mounting cavity (211); A heating power supply device (220) is provided in the mounting cavity (211) for heating the heating zone (111); A control device (230) is disposed in the housing (210), and the control device (230) is electrically connected to the heating power supply device (220).

9. The aerosol generating apparatus (200) according to claim 8, characterized in that, The heating power supply device (220) heats the heating zone (111) by at least one of resistance heating, electromagnetic heating or infrared heating.

10. The aerosol generating apparatus (200) according to claim 9, characterized in that, A partition (213) is provided inside the mounting cavity (211), and a mounting base (214) is provided on the partition (213). The mounting base (214) has a groove facing the opening (212) along the first direction. The cylinder (110) of the heating assembly (100) is detachably disposed in the groove. When the aerosol generating matrix section is inserted into the aerosol generating device (200) along the first direction, the bottom wall of the aerosol generating matrix section is flush with the end wall of the heat-conducting area (112) of the cylinder (110) away from the heat-generating area (111).

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