Aerosol generation device with baffle

Abstract

An aerosol generating device (100) comprises a heating chamber (108) having a tubular wall (114) extending around a central axis X, the tubular wall defining an interior volume of the heating chamber (108). The heating chamber (108) has an open end (110) and is arranged to receive a substrate carrier (130) comprising an aerosol substrate (132) through the open end (110) into the interior volume of the heating chamber (108) along the central axis X. A heater (118) extends around the heating chamber (108) to supply heat to the heating chamber (108). The heating chamber 108 further comprises a baffle (142) having a sealing surface (143) facing the open end (110). The baffle (142) is arranged to deform such that when the substrate carrier (130) is inserted into the heating chamber (108), the sealing surface (143) is deflected to face more towards the central axis X and thus towards a side wall of the substrate carrier (130).

Description

Technical Field

[0001] This disclosure relates to an aerosol generating device with a baffle to retain heated gas within a heating chamber. This disclosure is particularly applicable to portable aerosol generating devices, which may be stand-alone and cryogenic. Such devices can generate inhalable aerosols by heating, rather than burning, tobacco or other suitable materials through conduction, convection, and / or radiation. Background Technology

[0002] In recent years, the popularity and use of devices that reduce or modify risk (also known as vaporizers) have grown rapidly, helping habitual smokers who want to quit to break traditional tobacco products such as cigarettes, cigars, cigarettes, and rolled cigarettes. Various devices and systems are available that heat or raise the temperature of aerosolizable substances, unlike burning tobacco in conventional tobacco products.

[0003] Typically available devices for risk reduction or mitigation are aerosol generating devices that heat the matrix or devices that heat but do not burn. This type of device generates aerosols or vapors by heating the aerosol matrix to temperatures typically in the range of 100°C to 350°C. The aerosol matrix typically includes moist tobacco leaves or other suitable aerosolizable materials. Heating but not burning or burning the aerosol matrix releases aerosols containing the components sought by the user but containing, or containing less of, the carcinogenic byproducts produced by combustion and burning.

[0004] In a general sense, it is desirable to rapidly heat the aerosol matrix to a temperature from which aerosols can be released without burning, and to maintain the aerosol matrix at that temperature. Clearly, the aerosols released from the aerosol matrix in the heated chamber are delivered to the user as an airflow passes through the aerosol matrix.

[0005] This type of aerosol generating device is a portable device, therefore energy consumption is an important design consideration. The present invention aims to address the problems of existing devices and provide an improved aerosol generating device and its heating chamber. Summary of the Invention

[0006] According to a first aspect of this disclosure, an aerosol generating apparatus is provided, comprising: a heating chamber having a tubular wall extending about a central axis defining an internal volume of the heating chamber, the heating chamber having an open end and being arranged to receive a matrix carrier comprising an aerosol matrix into the internal volume through the open end along the central axis; a heater extending about the heating chamber to supply heat to the heating chamber; and a baffle having a sealing surface facing the open end, the baffle being arranged to deform such that when the matrix carrier is inserted into the heating chamber, the sealing surface is deflected to face more towards the central axis and thus towards a sidewall of the matrix carrier.

[0007] The deflection of the sealing surface allows for an effective seal against the sidewalls of the matrix carrier. It should be understood that the deflection or folding of the sealing surface typically faces the internal volume or away from the opening end. The deflection or folding of the sealing surface increases the surface area of ​​the baffle facing the central axis and therefore the sidewalls of the matrix carrier. Furthermore, when the sealing surface is not deflected, for example when the matrix carrier is absent, the baffle can extend across the opening end of the heating chamber to a greater extent compared to when the sidewalls are deflected. For example, the opening end can be at least partially blocked by the baffle, such that any orifice through the baffle is smaller than the cross-sectional area of ​​the matrix carrier, such as its width. Generally, the baffle, and specifically the deflected sealing surface cooperating with the sidewalls of the matrix carrier when the matrix carrier is inserted, allows heated air to be retained in the heating chamber, which in turn improves the efficiency of the aerosol generating device because the energy consumed in heating the air in the heating chamber is not wasted by allowing air to escape from the heating chamber.

[0008] The heater can be positioned outside the heating chamber. The heater can be mounted on the outer surface of the heating chamber, or as part of the tubular wall forming the heating chamber, or on the inner surface of the tubular wall. The heater can be mounted on a surface of the tubular wall opposite to the internal volume of the heating chamber. Heat from the externally positioned heater is transferred to the internal volume through the tubular wall. More specifically, heat is transferred from the externally positioned heater to the internal volume through the tubular wall by conduction. Heat can be transferred directly from the tubular wall to the aerosol matrix and / or indirectly from the tubular wall to the aerosol matrix by heating air flowing from the open end toward the aerosol matrix.

[0009] The heating chamber may have a base, and a tubular wall may extend between the open end and the base. The base may be closed, such that air is drawn into the heating chamber only through the open end toward the aerosol matrix, and more specifically toward the aerosol matrix between the outer layer of the matrix carrier and the tubular wall.

[0010] Optionally, the distance between the innermost part of the baffle and the central axis is less than the distance between the inner surface of the tubular wall and the central axis. That is, the distance between the part of the baffle closest to the central axis and the central axis is less than the distance between the inner surface of the tubular wall and the central axis.

[0011] Alternatively, the baffle is arranged close to the open end of the heating chamber. For example, the baffle is closer to the open end than to the opposite end of the heating chamber.

[0012] Optionally, the baffle is elastically deformable.

[0013] Optionally, the baffle is a membrane comprising at least two portions defined by a slit between them, these portions being configured to be deformably separable to receive a matrix carrier into the heating chamber. In one example, the slit extends radially relative to the tubular wall. In some examples, there are two or more slits that may intersect each other at a central axis.

[0014] Optionally, the baffle has at least one perforation configured to allow airflow through it.

[0015] Optionally, the baffle is arranged at least partially inside the heating chamber.

[0016] Optionally, the baffle is located outside the heating chamber and is arranged adjacent to or spaced apart from the opening end of the heating chamber.

[0017] Alternatively, the baffle extends from the tubular wall.

[0018] Optionally, the baffle may (completely) surround one / the central axis.

[0019] Optionally, the baffle is made of a material having a first thermal conductivity, and the tubular wall is made of a material having a second thermal conductivity, wherein the first thermal conductivity is less than the second thermal conductivity.

[0020] Optionally, the baffle has a reduction in the direction away from the internal volume of the heating chamber, such that the opening defined by the baffle for receiving the substrate carrier through which it passes narrows toward the internal volume of the heating chamber.

[0021] Optionally, the baffle includes a first baffle element and a second baffle element that are concentrically positioned and axially spaced apart from each other along the length of the tubular wall.

[0022] Optionally, the baffle may comprise an elastomeric material. Optionally, the baffle may be made of silicone rubber.

[0023] Optionally, the baffle can resiliently transform from a sealed configuration to an inflow configuration when the user sucks through the substrate carrier, allowing airflow between the baffle and the substrate carrier into the internal volume of the heating chamber. The sealed configuration can be one in which the baffle deforms to receive the substrate carrier, and the inflow configuration can be one in which an air gap is formed between the baffle and the substrate carrier to allow airflow into the heating chamber.

[0024] Alternatively, in the sealing configuration, the baffle extends further toward the central axis compared to the inflow configuration.

[0025] Optionally, the baffle defines an opening for receiving a matrix carrier through which it passes, wherein the width of the opening is smaller than the width of the matrix carrier.

[0026] Optionally, the aerosol generating device further includes: a power source; and a control circuit system configured to control the electrical power supply from the power source to the heater.

[0027] Optionally, the heating chamber includes a base disposed at the end of the tubular wall opposite the open end, and further optionally, the distance between the baffle and the base of the heating chamber is approximately equal to the length of the aerosol matrix carried by the matrix carrier.

[0028] According to a second aspect of this disclosure, an aerosol generating apparatus is provided, comprising: a heating chamber having a tubular wall defining an internal volume of the heating chamber and having an open end, the heating chamber being arranged to receive a matrix carrier comprising an aerosol matrix into the internal volume of the heating chamber through the open end; the tubular wall being arranged to define an air gap between the matrix carrier and the tubular wall when the matrix carrier is received in the heating chamber; a heater extending around the heating chamber to supply heat to the heating chamber; and a baffle arranged to seal substantially against the matrix carrier and to restrict airflow through the open end, wherein the baffle is deformable to receive the matrix carrier into the heating chamber.

[0029] Optionally, the baffle can elastically transform from a sealed configuration to an inflow configuration when the user sucks through the substrate carrier, allowing airflow between the baffle and the substrate carrier to enter the internal volume of the heating chamber. The sealed configuration may be one in which the baffle deforms to receive the substrate carrier; the inflow configuration may be one in which an air gap is formed between the baffle and the substrate carrier to allow airflow into the heating chamber.

[0030] Alternatively, the substrate carrier is more rigid than the baffle. In a sealed configuration, the substrate carrier can therefore deform the baffle without being deformed by the baffle itself (when the substrate carrier is received in the heating chamber).

[0031] Optionally, the aerosol generating apparatus of the second aspect may include the optional features described above with respect to the first aspect, in particular those features related to the size, position, and function of the baffle of the first aspect.

[0032] Alternatively, in each of the above aspects, the baffle can be transformed from a first configuration to a second configuration, wherein, in the second configuration, the substrate carrier is inserted into the heating chamber to allow the baffle to abut against the substrate carrier to form a seal.

[0033] Alternatively, the baffle can be further deformed by the airflow entering the internal volume of the heating chamber through the open end.

[0034] According to a third aspect of this disclosure, an aerosol generation system is provided, comprising the aforementioned aerosol generation device and a matrix carrier. In other words, the aerosol generation device and the matrix carrier can together form one aspect of this disclosure.

[0035] Embodiments of this disclosure will now be described by way of example only and with reference to the accompanying drawings. Attached Figure Description

[0036] Figure 1 This is a schematic perspective view of an aerosol generating apparatus according to a first embodiment of the present disclosure.

[0037] Figure 2 yes Figure 1 A schematic cross-sectional view of the side of the aerosol generating device.

[0038] Figure 3 yes Figure 1 A schematic perspective view of an aerosol generating apparatus, showing a matrix carrier of an aerosol matrix being loaded into the aerosol generating apparatus.

[0039] Figure 4 yes Figure 1 A schematic cross-sectional view of the side of an aerosol generating device, showing the matrix carrier of the aerosol matrix being loaded into the aerosol generating device.

[0040] Figure 5 yes Figure 1 A schematic perspective view of an aerosol generating apparatus, showing that the matrix carrier of the aerosol matrix has been loaded into the aerosol generating apparatus.

[0041] Figure 6 yes Figure 1 A schematic cross-sectional view of the side of the aerosol generating device, showing that the matrix carrier of the aerosol matrix has been loaded into the aerosol generating device.

[0042] Figure 7 Is it like this? Figure 6A close-up schematic cross-sectional view of a portion of the aerosol generating device shown.

[0043] Figure 8 This is a schematic plan view of an aerosol generating apparatus according to a second embodiment of the present disclosure.

[0044] Figure 9 yes Figure 8 A schematic cross-sectional view of the front of an aerosol generating apparatus, showing that the matrix carrier of the aerosol matrix has been loaded into the aerosol generating apparatus.

[0045] Figure 10 yes Figure 8 A schematic cross-sectional view of the side of the aerosol generating device, perpendicular to... Figure 9 The view in the image shows the matrix carrier of the aerosol matrix being loaded into the aerosol generating device.

[0046] Figure 11 This is a schematic perspective view of an aerosol generating apparatus according to a third embodiment of the present disclosure, the aerosol generating apparatus having a baffle including perforations.

[0047] Figure 12 yes Figure 11 A detailed schematic cross-sectional view of the side of the aerosol generating apparatus, including the heating chamber, showing that the matrix carrier of the aerosol matrix has been loaded into the aerosol generating apparatus.

[0048] Figure 13 This is a schematic perspective view of an aerosol generating apparatus according to a fourth embodiment of the present disclosure, the aerosol generating apparatus having a baffle including a membrane.

[0049] Figure 14 yes Figure 13 A schematic perspective view of an aerosol generating apparatus, showing that the matrix carrier of the aerosol matrix has been loaded into the aerosol generating apparatus.

[0050] Figure 15 This is a schematic cross-sectional view of the side of an aerosol generating apparatus according to a fifth embodiment of the present disclosure, the aerosol generating apparatus having an alternative airflow arrangement.

[0051] Figure 16 This is a schematic cross-sectional view of the side of an aerosol generating apparatus according to a sixth embodiment of the present disclosure, the aerosol generating apparatus having a baffle arranged inside a heating chamber.

[0052] Figure 17 This is a schematic cross-sectional view of the side of an aerosol generating apparatus according to the seventh embodiment of the present disclosure, the aerosol generating apparatus having a baffle arranged inside a heating chamber and spaced apart from an open end.

[0053] Figure 18 This is a schematic cross-sectional view of the side of an aerosol generating apparatus according to the eighth embodiment of this disclosure, the aerosol generating apparatus having a baffle that is conical in profile.

[0054] Figure 19 This is a schematic cross-sectional view of the side of an aerosol generating apparatus according to the ninth embodiment of this disclosure, the aerosol generating apparatus having a baffle having a first baffle element and a second baffle element.

[0055] Figure 20 This is a schematic cross-sectional view of the side of an aerosol generating apparatus according to the tenth embodiment of this disclosure, showing a cover mounted on the aerosol generating apparatus and a baffle arranged on the cover.

[0056] Figure 21 yes Figure 20 A schematic cross-sectional view of the side of the aerosol generating device, showing the cover being mounted on the aerosol generating device.

[0057] Figure 22 This is a schematic cross-sectional view of the side of the aerosol generating apparatus according to the eleventh embodiment of this disclosure. Detailed Implementation

[0058] First Embodiment

[0059] refer to Figures 1 to 7 According to a first embodiment of this disclosure, the aerosol generating device 100 includes a housing 102 that accommodates various components of the aerosol generating device 100. In the first embodiment, the housing 102 has an irregular shape; however, it should be understood that any shape is possible, provided that its size is set to suit the components described in the various embodiments set forth herein.

[0060] For convenience, the first end 104 of the aerosol generating device 100 (shown as facing) Figures 1 to 6 The respective bottoms are described as the bottom, base, or lower end of the aerosol generating device 100. The second end 106 of the aerosol generating device 100 (shown facing...) Figures 1 to 7 The respective tops are described as the top or upper end of the aerosol generating device 100. During use, the user typically orients the aerosol generating device 100 with the first end 104 facing down and / or in a distal position relative to the user's mouth, and the second end 106 facing up and / or in a proximal position relative to the user's mouth.

[0061] The aerosol generating device 100 has a heating chamber 108 positioned toward a second end 106 of the aerosol generating device 100. The heating chamber 108 is open toward the second end 106 of the aerosol generating device 100. In other words, the heating chamber 108 has a first open end 110 toward the second end 106 of the aerosol generating device 100. The heating chamber 108 has a sidewall 114 extending between the first open end 110 and a base 112 (located at the second end of the heating chamber 108 opposite to the open end 110). The sidewall 114 and the base 112 are connected to each other. In some embodiments, the sidewall 114 and the base 112 are integrally formed. In a first embodiment, the sidewall 114 is tubular. More specifically, the sidewall is cylindrical and extends about a central axis X. However, in other embodiments, the sidewall 114 has other suitable shapes that extend about the central axis X in each case, such as a tube having an elliptical or polygonal cross-section. In another embodiment, the sidewall 114 is tapered. An aperture at the second end 106 of the aerosol generating device 100 in the housing 102 is aligned with the open end 110 to allow insertion of the matrix carrier 130. The heating chamber 108 is spaced apart from the inner surface of the housing 102 to suppress heat flow to the housing 102. To further improve the insulation of the heating chamber 108, the heating chamber 108 may be surrounded by insulation, such as fiber or foam material (such as lint, aerogel, or gas), or in other examples, vacuum insulation may be provided.

[0062] The heating chamber 108 is arranged to receive the substrate carrier 130 (also referred to as a "consumable"), such as Figures 3 to 7 As shown. Typically, the matrix carrier 130 includes a pre-packaged aerosol matrix 132, such as tobacco or another suitable aerosolizable material provided with an aerosol collection area 134. Both the aerosol matrix 132 and the aerosol collection area 134 are enclosed in an outer layer 136 and are adjacent to each other at their boundaries along the middle of the matrix carrier 130. The aerosol matrix 132 is heatable to generate an aerosol for inhalation and is positioned toward a first end 138 (or “end”) of the matrix carrier 130. The aerosol matrix 132 extends across the entire width of the matrix carrier 130 within the outer layer 136. In other embodiments, the heating chamber 108 is arranged to receive other forms of aerosol matrix 132, such as loosely shredded material or otherwise packaged solid material. The matrix carrier 130 is generally cylindrical. The aerosol matrix 132 is arranged for less than 50%, preferably between 20% and 40%, more preferably between 30% and 40%, of the length of the matrix carrier 130 (along the cylindrical axis), for example, about 36% (which is equivalent to about 20 mm in a 55 mm long matrix carrier 130). Although Figures 3 to 7 Not shown, but the substrate carrier 130 may further include a filter facing the second end 140.

[0063] In the first embodiment, the base 112 of the heating chamber 108 is closed, for example, sealed or airtight. That is, the heating chamber 108 is cup-shaped. This ensures that air drawn in from the first opening end 110 is prevented from flowing out of the second end by the base 112 and is instead guided through the aerosol matrix 132. It also ensures that the user inserts the matrix carrier 130 into the heating chamber 108 a predetermined distance without going further.

[0064] Heater 118 is mounted on the outer surface of heating chamber 108. That is, heater 118 is mounted on the surface of tubular sidewall 114 opposite to the internal volume of heating chamber 108. This helps protect heater 118 from damage when substrate carrier 130 is inserted into heating chamber 108. Heater 118 is typically electrically powered. In a first embodiment, heater 118 is a thin-film heater comprising conductive (e.g., metallic) traces laminated on a flexible electrically insulating backing material (such as polyimide).

[0065] In the first embodiment, the aerosol generating device 100 is electrically powered. That is, the aerosol generating device is arranged to use electrical power to heat the aerosol matrix 132. For this purpose, the aerosol generating device 100 has a power source 120, such as a battery. The power source 120 is connected to a control circuit system 122. The control circuit system 122 is in turn connected to a heater 118. The user operates the aerosol generating device 100 using a control device (not shown), which is arranged to connect and disconnect the power source 120 from the heater 118 via the control circuit system 122. This, in turn, causes the heater 118 to heat the heating chamber 108 and supply heat to it. In the presence of the matrix carrier 130, heat (typically primarily through conduction or convection) is transferred to the aerosol matrix 132, which releases vapor or aerosol for the user to inhale by sucking on the second end 140 of the matrix carrier 130.

[0066] Aerosol generating device 100 in Figure 1 and Figure 2 It is shown as having no matrix carrier 130. Figure 3 and Figure 4 The image shows a matrix carrier 130 above, but not within, the aerosol generating apparatus 100. Figures 5 to 7 The image shows a matrix carrier 130 being loaded into an aerosol generating device 100.

[0067] like Figures 1 to 7As shown, the aerosol generating device 100 includes a baffle 142. The second end 106 of the baffle 142 facing the aerosol generating device 100 is disposed between an opening in the housing 102 and an opening 110 of the heating chamber 108. The baffle 142 can be mounted in place using any suitable method, including, for example: interference fit; holding the baffle 142 in a recess; attachment using adhesives or other bonding methods; and clamping the baffle 142 in place using protrusions or flanges. As will be shown in the following embodiments, the baffle 142 can be arranged in various locations, such as on the inner surface of the tubular wall 114. In such cases, the mounting methods listed above or any other suitable method can be used to position the baffle 142 in that location. In a first embodiment, the baffle 142 is an annular shape having an outer circular shape. The baffle 142 of the first embodiment includes an inner circular shape having an inner circumference defining a central opening 144 for receiving the matrix carrier 130. Therefore, the central opening 144 has a circular shape.

[0068] Alternatively, the central aperture 144 is elliptical or oval in shape, such as the baffle 242 of the second embodiment. In other examples, the central aperture 144 has other cross-sectional shapes, such as square, triangle, star-shaped polygon, or other polygons.

[0069] Baffle 142 and central aperture 144 are centered on the central axis X, such that the central region (e.g., geometric center or centroid) of the radial section of baffle 142 is aligned with the central axis X. In other words, central aperture 144 surrounds the central axis X. In a first embodiment, central aperture 144 is circular and centered at a point coinciding with the geometric center of the internal volume defined by the tubular wall 114 of heating chamber 108. Therefore, central aperture 144 is arranged concentrically with the tubular wall 114 of heating chamber 108. Central aperture 144 has a width smaller than the width of tubular wall 114. In a first embodiment, central aperture 144 has a diameter smaller than the diameter of tubular wall 114. In other examples, such as when central aperture 144 is not circular, the minimum width of central aperture 144 (e.g., measured through the centroid of central aperture 144) is smaller than the width of tubular wall 114. Baffle 142 reduces the cross-section through the space of its receiving substrate carrier 130. This is achieved by providing a central aperture 144 with a width smaller than that of the open end 110. This means that the substrate carrier 130 cannot be inserted into the heating chamber 108 through the central aperture 144 without contacting the baffle 142, and specifically, the substrate carrier 130 contacts the sealing surface 143 positioned near the central axis. When the substrate carrier 130 is inserted, the end 138 of the substrate carrier 130 contacts the sealing surface 143 and pushes the sealing surface 143 (towards the base 112 of the heating chamber 108) downward. This downward force deforms the baffle 142, causing the sealing surface 143 to deflect from its original position (away from the base 112 and internal volume of the heating chamber 108) to a sealed position in which the sealing surface is more facing the central axis X and therefore towards the outer surface of the substrate carrier 130. This allows the sealing surface 143 to form a seal with the sidewall of the substrate carrier, wherein the sealing surface 143 contacts the substrate carrier 130.

[0070] The baffle 142 is deformable. Specifically, the baffle 142 is made of a deformable material (e.g., an elastically deformable material). In other words, the baffle 142 is made of a bendable or flexible material. The baffle 142 has material properties including being flexible, resilient, and / or bendable. The baffle 142 is elastically deformable. For example, the baffle 142 is made of an elastomeric material, or rubber, or silicone. Specifically, the baffle 142 is deformable to the extent that it can be deformed by a user inserting the substrate carrier 130 into the heating chamber 108, as described in more detail below.

[0071] This deformation allows the baffle 142 to stretch, allowing it to better conform to the surface of the substrate carrier 130 and thereby form a seal. Additionally, elastic or elastomeric materials typically have the property of returning to their original shape when the cause of their deformation is removed. In this application, this property can help prevent dirt, dust, water, etc., from entering the heating chamber 108 in the absence of the substrate carrier 130, because, according to the embodiment, the baffle 142 can return to a position where the open end 110 is partially, substantially, or even completely blocked. The baffle 142 can also deform such that it is not damaged by deformation. That is, the substrate carrier 130 is pushed against the baffle 142, causing the baffle 142 to deform and allow the substrate carrier 130 to pass through and enter the heating chamber 108. This causes the baffle 142 to deflect and press against the substrate carrier 130 (when the substrate carrier is inserted) and form a seal to retain heated air inside the heating chamber 108. The baffle 142 may be formed of heat-resistant and / or thermally insulating materials (e.g., heat-resistant and / or thermally insulating materials suitable for use in medical devices).

[0072] Compared to the tubular wall 114, the baffle 142 extends further toward the central axis X. Therefore, the baffle 142 includes a lip portion extending toward the central axis X beyond the tubular wall 114. This narrows the cross-sectional area at the second end 106 relative to the cross-sectional area defined by the tubular wall 114 of the heating chamber 108 at the open end 110, which helps to provide a covering effect and keep the internal volume of the heating chamber 108 clean and free of dirt, dust, water, etc., even in the absence of the substrate carrier 130.

[0073] refer to Figures 1 to 4 When the substrate carrier 130 is not inserted into the heating chamber 108, the baffle 142 is in a first configuration. The first configuration involves the baffle 142 partially covering the edge of the opening end 110 or the internal volume of the heating chamber 108 and defining the central orifice 144 in a static position in an undeformed state.

[0074] refer to Figures 5 to 6When the substrate carrier 130 is inserted into the heating chamber 108, the baffle 142 changes from a first configuration to a second or sealed configuration. In the second configuration, the baffle 142 is in a deformed position, wherein the baffle 142 deflects and bends to allow the substrate carrier 130 to be received in the heating chamber 108 through the central aperture 144. The sealing surface 143 deflects to face the central axis X more towards it than when the baffle 142 is not deflected (e.g., because the substrate carrier 130 is not inserted into the heating chamber 108). In the second configuration, the baffle 142 abuts against the substrate carrier 130 to form a seal. In the first embodiment, because the baffle 142 is annular and the central aperture 144 is circular, the baffle 142 (specifically, the sealing surface 143) contacts the cylindrical substrate carrier 130 and forms a complete seal around the circumference of the cylindrical substrate carrier. In other embodiments, in a second configuration, baffle 142 forms a partial seal against substrate carrier 130, such as the elliptical baffle 242 of the second embodiment, wherein baffle 242 contacts only a portion of the circumference of substrate carrier 130 and forms an intermittent seal only against the circumference of substrate carrier 130, or wherein in a third embodiment, perforation 346 is provided, or wherein in a fourth embodiment, baffle 442 seals against the entire circumference of substrate carrier 130, wherein the slit membrane forms a valve. In any of these embodiments, and in other embodiments, the purpose of baffle 142 is to form a seal to prevent warm air and vapors or aerosols generated by heating (as described in more detail elsewhere) from escaping heating chamber 108. This improves efficiency because the energy used to heat the air and generate vapors and aerosols is not wasted, nor is the vapor (or aerosol) itself wasted, as the baffle 142 prevents the vapor (or aerosol) from escaping.

[0075] During use, air can flow from the environment surrounding the aerosol generating device 100 into the heating chamber 108 to allow the inhalation of aerosols; otherwise, air cannot be drawn through the aerosol matrix 132 to deliver aerosols to the user. Additionally, air enters the heating chamber 108 to be heated and subsequently heated by convection to aerosolize the aerosol matrix 132. In the first embodiment, air can enter the heating chamber through the opening end 110. However, when the matrix carrier 130 is loaded into the heating chamber 108 and the baffle 142 deforms to form a seal, air passage through the opening end 110 is restricted. In the first embodiment, such as Figure 6 As shown, in this position, airflow through the opening end 110 is essentially blocked. In this state, the baffle 142 is in a second sealing configuration.

[0076] When the user aspirates the matrix carrier 130, the pressure inside the heating chamber 108 drops below the pressure of the external environment. That is, a pressure difference exists between the two ends of the seal formed between the baffle 142 and the matrix carrier 130. In the first embodiment, applying negative pressure is sufficient to further change the baffle 142 from a second sealing configuration to a third inflow configuration. (See reference...) Figure 7 The diagram shows baffle 142 in a third inflow configuration. In this third configuration, baffle 142 is pulled away from the matrix carrier 130 by the airflow entering the opening 110 between baffle 142 and the matrix carrier 130. That is, baffle 142 is further deformed toward the internal volume of the heating chamber 108 and the base 112. Specifically, baffle 142 is further deformed away from the central axis X and toward the tubular wall 114, thereby breaking the seal between the sealing surface 143 and the matrix carrier, thereby allowing air to flow in from the outside of the aerosol generating device 100 to replenish the heated air drawn out by the user through the matrix carrier 130. In other words, the deformation further widens the central orifice 144 and allows for pressure differential equalization. In this third configuration, sufficient air can be supplied to the heating chamber 108 for heating and vaporization of the aerosol matrix 132. When the user is in Figure 7 When the aerosol is inhaled in the direction indicated by arrow A, air is drawn into the heating chamber 108. When the baffle 142 is modified into a third configuration to allow air to flow into the heating chamber 108 when the user applies suction, the airflow between the baffle 142 and the matrix carrier 130 is... Figure 7 Arrow B in the diagram indicates this.

[0077] When the user stops inhaling the matrix carrier 130, pressure is no longer applied, and the baffle 142 elastically returns to the second configuration. That is, the baffle 142 can elastically deform from the second configuration to the third configuration when the user inhales through the matrix carrier 130. When the baffle 142 is in the third configuration, this allows air to temporarily flow through the opening end 110 when suction is applied. Therefore, when the user is not inhaling the matrix carrier 130, the baffle 142 remains sealed against the matrix carrier 130, thereby retaining heat and vapor between inhalations (generally referred to as smoking) or when the aerosol generating device 100 is not in use and the matrix carrier 130 remains inserted. This can increase the retention of heat and vapor between smokings and can provide thermal insulation for faster initial heating.

[0078] In the second configuration, the baffle 142 points towards the base 112 of the heating chamber 108 (such as...). Figure 6(As shown). For example, this arrangement of baffle 142 helps prevent backflow (e.g., airflow, gasflow, vaporflow, and / or aerosolflow) from leaving opening 110 when baffle 142 returns to the second configuration. This can help counteract a positive pressure differential, where the interior of heating chamber 108 is at a higher pressure than the ambient pressure outside aerosol generating device 100. A positive pressure differential can occur, for example, when fresh, cold air is drawn from outside aerosol generating device 100 and subsequently heated to increase its pressure.

[0079] Therefore, baffle 142 restricts unwanted airflow from the aerosol from leaving the heating chamber 108, while allowing airflow into the heating chamber 108 under the suction of the user. This creates a one-way valve that can be opened by the user drawing air from the aerosol generating device 100. The degree of deformability or flexibility of baffle 142 is chosen as a trade-off between ensuring sufficient sealing to suppress aerosol escape and allowing sufficient airflow to enter the heating chamber 108 easily, so that the user does not need to exert excessive effort to achieve the effects described herein or insert the matrix carrier 130 into the heating chamber 108.

[0080] Additionally, draw resistance is a property that affects user satisfaction. Draw resistance is the amount of suction required to provide sufficient inhalation of the aerosol. If the draw resistance is too high, it will be difficult to inhale and will be unpleasant for the user. The goal is to simulate the draw resistance of a cigarette to provide a comfortable and familiar experience.

[0081] The suction resistance can be adjusted by changing the flexibility of the baffle 142 and selecting a third configuration that deforms the baffle 142 away from the substrate carrier 130 to allow the pressure drop required for airflow. Preferably, the pressure drop is selected to be in the range of 20 mm to 120 mm of water column, and more preferably between 60 mm and 100 mm of water column. In Pascals, the pressure drop is preferably selected to be in the range of approximately 200 Pa to 1200 Pa, and more preferably between approximately 600 Pa and 1000 Pa.

[0082] The matrix carrier 130 is inserted into the heating chamber 108 and oriented such that a first end 138 of the matrix carrier 130 (with the aerosol matrix 132 positioned toward this first end) enters the heating chamber 108. The matrix carrier 130 is inserted into the heating chamber 108 until the first end 138 of the matrix carrier 130 abuts against the base 112 of the heating chamber 108; that is, until the matrix carrier 130 can no longer be inserted into the heating chamber 108. In other embodiments, the first end 138 of the matrix carrier 130 does not abut against the base 112. This allows air to flow between the base 112 and the first end 138. In one embodiment, such as the eleventh embodiment, the first end 138 rests on a platform 1180 in the base 112, which is raised to contact the central portion of the first end 138 of the matrix carrier 130, allowing air to flow into a portion of the first end 138.

[0083] From Figures 5 to 7 As can be seen, when the matrix carrier 130 has been inserted to its furthest reach within the heating chamber 108, only a portion of the length of the matrix carrier 130 is inside the heating chamber 108. The remaining length of the matrix carrier 130 protrudes from the heating chamber 108. At least a portion of the remaining length of the matrix carrier 130 also protrudes from the second end 106 of the aerosol generating device 100. In other embodiments, the entire or substantially the entire matrix carrier 130 may be received within the aerosol generating device 100 such that no or substantially no matrix carrier 130 protrudes from the aerosol generating device 100.

[0084] When the matrix carrier 130 is inserted into the heating chamber 108, the aerosol matrix 132 within the matrix carrier 130 is at least partially disposed within the heating chamber 108. In a first embodiment, the aerosol matrix 132 is completely disposed within the heating chamber 108. This ensures that the entire aerosol matrix 132 can be heated. In a first embodiment, the aerosol matrix 132 is arranged to extend a greater height than the heater 118. That is, the entire length of the heater 118 along the axial length of the heating chamber 108 overlaps with the aerosol matrix 132. In some embodiments, a pre-packaged amount of aerosol matrix 132 in the matrix carrier 130 is arranged to extend a distance along the matrix carrier 130 from a first end 138 of the matrix carrier 130, which is approximately (or even entirely) equal to the internal height of the heating chamber 108 from the base 112 to the opening end 110. This is effectively the same as the length of the tubular wall 114 of the heating chamber 108 inside the heating chamber 108. For example, when the matrix carrier 130 is inserted into the heating chamber 108, the boundary between the aerosol matrix 132 and the aerosol collection area 134 can be substantially radially aligned with the baffle 142. That is, the seal between the baffle 142 and the matrix carrier 130 is aligned with the edge of the aerosol matrix 132. This can provide additional heat and vapor retention within the heating chamber 108, where, for example, this heat and vapor retention is desired within the aerosol matrix 132.

[0085] With the matrix carrier 130 loaded in the aerosol generating device 100, the user turns on the aerosol generating device 100 using a user-operable button 126. This allows electrical power from the power source 120 to be supplied to the heater 118 via (and under the control of) the control circuit system 122. The heater 118 conducts heat through the tubular wall 114 of the heating chamber 108 to the aerosol matrix 132, thereby heating at least a portion of the aerosol matrix 132 to a temperature at which it can begin to release aerosols or vapors.

[0086] Once heated to a temperature at which aerosol generation begins from the aerosol matrix 132, the user can inhale the vapor by sucking it through the second end 140 of the matrix carrier 130. The user can be informed of the vapor formation using, for example, visual or audio cues. Such cues can be determined by, for example, temperature or time measurements. That is, vapor is generated from the aerosol matrix 132 located at the first end 138 of the matrix carrier 130 within the heating chamber 108, and is drawn along the length of the matrix carrier 130, through the aerosol collection area 134 within the matrix carrier 130, to the second end 140 of the matrix carrier 130, where the vapor enters the user's mouth. Figure 7 Arrow A in the diagram illustrates this flow of aerosols.

[0087] It should be understood that when users are Figure 7 When air and / or vapor are drawn in the direction of arrow A, air or a mixture of air and vapor flows from near the aerosol matrix 132 in the heating chamber 108 through the matrix carrier 130. This action also draws ambient air from the environment surrounding the aerosol generating device 100 and from between the matrix carrier 130 and the baffle 142 into the heating chamber 108 (via...). Figure 7 (The flow path is indicated by arrow B in the diagram). The air drawn into the heating chamber 108 is then heated and drawn into the matrix carrier 130. The heated air heats the aerosol matrix 132 through convection to generate an aerosol. More specifically, in the first embodiment, air enters the heating chamber 108 through the space between the tubular wall 114 of the heating chamber 108 and the outer layer 136 of the matrix carrier 130. For this purpose, the outer diameter of the matrix carrier 130 is smaller than the inner diameter of the heating chamber 108. More specifically, in the first embodiment, the heating chamber 108 has an inner diameter of 10 mm or less, preferably 8 mm or less, and most preferably about 7.6 mm. This allows the matrix carrier 130 to have a diameter of about 7.0 mm (±0.1 mm). This corresponds to an outer circumference of 21 mm to 22 mm, or more preferably 21.75 mm. In other words, the space between the matrix carrier 130 and the tubular wall 114 of the heating chamber 108 is most preferably about 0.1 mm. In other variations, this space is at least 0.2 mm, and in some examples up to 0.3 mm. It should be noted that... Figures 1 to 7 This drawing may not be to scale. In some examples, the space between the matrix carrier 130 and the tubular wall 114 may be larger than this to allow for the deformation of the baffle 142. In other examples, the tubular wall 114 is wider toward the open end 110 to provide a recess or taper to allow the baffle 142 to deform downward into the internal volume of the heating chamber 108. In such examples, the tubular wall 114 is narrower toward the internal volume of the heating chamber 108 or toward the base 112 to provide more efficient heating of the aerosol matrix 132.

[0088] A single inhalation by a user is typically referred to as a "puff." In some situations, it is desirable to simulate the smoking experience, which means that the aerosol generating device 100 is typically capable of holding a sufficient amount of aerosol matrix 132 to provide a predetermined number of puffs, such as ten to fifteen puffs.

[0089] From Figures 1 to 7As understood from the accompanying description, according to a first embodiment, an aerosol generating apparatus 100 is provided, comprising a heating chamber 108 having a tubular wall 114 extending about a central axis X. The tubular wall 114 defines an internal volume of the heating chamber 108, and the heating chamber 108 has an open end 110 and is arranged to receive a matrix carrier 130 comprising an aerosol matrix 132 into the internal volume through the open end 110 along the central axis X. A heater 118 extends about the heating chamber 108 to supply heat to the heating chamber 108. A baffle 142 is provided having a sealing surface 143 facing the open end 110, and the baffle 142 is arranged to deform such that when the matrix carrier 130 is inserted into the heating chamber 108, the sealing surface 143 is deflected to face more towards the central axis X, and thus towards the sidewall of the matrix carrier 130. This deflection of the sealing surface 143 presses the sealing surface 143 against the matrix carrier 130 to form a seal. This seal retains heated air within the heating chamber 108, which in turn improves the efficiency of the aerosol generating device 100 because the energy consumed in heating the air in the heating chamber 108 is not wasted by allowing air to escape from the heating chamber 108. The baffle 142 is configured to restrict airflow through the opening 110 of the heating chamber 108. As described above, the baffle 142 deforms to allow the substrate carrier 130 to be inserted into the heating chamber 108 when the substrate carrier 130 is held in the heating chamber 108. The baffle 142 remains deformed when the substrate carrier 130 is held in the heating chamber 108. Although the baffle 142 is elastically deformable, it cannot elastically deform sufficiently to push the substrate carrier 130 back out of the heating chamber 108 when the user stops pushing the substrate carrier 130 into the heating chamber 108.

[0090] When the substrate carrier 130 is inserted into the heating chamber 108 and the baffle 142 deforms, the baffle 142 restricts the airflow through the opening end 110 of the heating chamber 108. The baffle 142 and the substrate carrier 130 form at least a partial seal. In the first embodiment, the central orifice 144 of the baffle 142 is complementary in shape to the substrate carrier 130 (i.e., circular), such that a complete seal is formed around the circumference of the substrate carrier 130. Different shapes of orifices 144 can be used to adapt the aerosol generating device 100 to substrate carriers 130 of different shapes.

[0091] Furthermore, the elasticity of the baffle 142 provides a centering effect in the sense that the matrix carrier 130 is held centered in the orifice 144 by the force canceled out by the opposing forces from the deformed baffle 142. With the central orifice 144 itself positioned about the central axis X-center, the net effect is to hold the matrix carrier 130 centered within the heating chamber 108. This results in an air gap between the matrix carrier 130 and the tubular wall 114, which is substantially constant around the matrix carrier. This helps ensure that the matrix carrier 130 is heated uniformly and that the suction resistance is predictable and constant.

[0092] When the user has finished using the matrix carrier 130, the matrix carrier 130 is removed from the aerosol generating device 100, for example, after the following: a predetermined number of cigarette smokes have been performed, the user determines that the aerosol matrix 132 has been exhausted, or the aerosol generating device 100 determines that the matrix carrier 130 has been consumed. The baffle 142 is deformable to allow the matrix carrier 130 to be removed from the heating chamber 108. Therefore, the baffle 142 is elastically deformable. The baffle 142 is deformable to return to its original undeformed position (i.e., the first configuration) when the matrix carrier 130 is removed, thus returning to its original position. The baffle 142 is configured to allow the matrix carrier 130 to be removed without altering the matrix carrier 130. That is, the baffle 142 will not tear the outer layer 136 of the matrix carrier or remove the aerosol matrix 132 from the matrix carrier 130. Additionally, deformation will not damage baffle 142, and baffle 142 returns to its original position when the matrix carrier 130 is removed (e.g., as in...). Figure 2 middle).

[0093] Second Embodiment

[0094] Now for reference Figures 8 to 10 To describe the aerosol generating apparatus 100 according to the second embodiment, these figures show a plan view, a first front view, and a second front view of the aerosol generating apparatus 100. Except as explained below, the aerosol generating apparatus 100 of the second embodiment is similar to that of the reference illustrative device. Figures 1 to 7 The aerosol generating apparatus 100 of the first embodiment described is the same, and the same reference numerals are used to indicate similar features. Figures 8 to 10 An aerosol generating apparatus 100 identical to the aerosol generating apparatus 100 of the first embodiment is shown, except as explained below.

[0095] The baffle 242 in the second embodiment differs from the baffle 142 in the first embodiment, for example, it can... Figure 8As seen in the image, the baffle 242 of the second embodiment has a stadium-shaped central aperture 244, instead of the circular shape of the first embodiment. The sealing surface 243 is located on the outward-facing portion of the baffle 242. In the second embodiment, the baffle 242 is a generally annular shape with an outer circular shape, wherein the outer circumference contacts the inner surface of the housing 102. The baffle 242 of the second embodiment includes an inner stadium shape with an inner periphery defining the central aperture 244. Therefore, the central aperture 244 has a stadium shape. In other examples, the central aperture 244 is an ellipse, particularly an ellipse with an eccentricity close to zero. In this case, the central aperture 244 is generally circular, but the periphery deviates from a precisely circular shape, with some portions closer to the central axis X than others.

[0096] Alternatively, the central aperture 244 is oval in shape. In other embodiments, the baffle 242 may be an elliptical ring having an inner elliptical shape and an outer elliptical shape. In this example, the cross-section of the housing 102 may also be elliptical to conform to the baffle 242.

[0097] In some embodiments, the baffle 242 has a narrow portion 242a and a wide portion 242b, which respectively define the minimum and maximum dimensions of the central aperture 244 (where each diameter is measured through the centroid of the central aperture 244). The narrow portion 242a is substantially along... Figure 8 The axis Y shown extends toward the central axis X. Axis Y is perpendicular to the central axis X and is arranged parallel to the width of baffle 242, which, in the second embodiment, is also arranged parallel to the base 112. The wide portion 242b is substantially along... Figure 8 The axis Z shown extends toward the central axis X. The axis Z is perpendicular to both the central axis X and the axis Y, and is arranged parallel to the width of the baffle 242, which in the second embodiment is also arranged parallel to the base 112.

[0098] In use, as described below, the narrow portion 242a is configured to contact the substrate carrier 130 when it is inserted into the heating chamber 108, while, as shown, the wide portion 242b does not contact the substrate carrier 130. This can be achieved, for example, by providing a baffle having a narrower portion 242a than the substrate carrier 130. When the substrate carrier 130 is inserted into the heating chamber 108, the sealing surface 243, particularly the outward-facing portion of the baffle 242, contacts the end 134, which pushes the sealing surface downward and deforms the baffle 242 such that the sealing surface faces the substrate carrier 130 (and therefore the central axis X) and abuts against the substrate carrier 130 to form a seal.

[0099] like Figure 8As shown, a space is provided between a portion of the baffle 242 and the substrate carrier 130 to allow airflow through it into the heating chamber 108. Figure 8 In this design, the size difference between the narrow portion 242a and the wide portion 242b is exaggerated to emphasize this effect. By providing both the narrow portion 242a and the wide portion 242b, a partial seal can be provided between the baffle 242 and the substrate carrier 130 (at the narrow portion 242a), as described in more detail below. In some cases, both the narrow portion 242a and the wide portion 242b can contact and abut against the substrate carrier 130 to form a seal, but the sealing strength and degree of local deflection of the baffle 242 may differ at the narrow portion 242a compared to the wide portion 242b.

[0100] In an alternative embodiment, baffle 242 may have a square-shaped central aperture 244 to receive a matrix carrier 130 with a circular cross-section, for example, with the sides of the square contacting and sealing the matrix carrier 130, while providing space and airflow paths at the corners of the square. Thus, the dimension between opposite sides of the square corresponds to the narrow portion 242a, and the dimension between opposite corners of the square's diagonals corresponds to the wide portion 242b. In other examples, baffle 242 may have a rectangular central aperture 244, which may optionally have rounded corners. For example, baffle 242 may have an elliptical central aperture 244.

[0101] Figure 9 A cross-section of the aerosol generating apparatus 100 of the second embodiment in the plane formed by axes X and Y is shown, illustrating the narrow portion 242a of the baffle 242 deformed by the matrix carrier 130. In some examples, the wide portion 242b is configured not to contact the matrix carrier 130. Therefore, the wide portion 242b does not deform directly through the matrix carrier 130. However, the tension within the baffle 242 caused by the deformation of the narrow portion 242a causes the wide portion 242b to also deform, although to a lesser extent. Therefore, in some examples of the second embodiment, the entire inner periphery of the baffle 242 can deform.

[0102] Figure 10 The diagram shows a cross-section of baffle 242 in the plane formed by axes X and Z, showing the wide portion 242b of baffle 242 that does not contact the substrate carrier 130. Therefore, baffle 242 does not form a seal with the substrate carrier 130 at the wide portion 242b. In general, baffle 242 forms a partial seal with the substrate carrier 130. That is, baffle 242 seals at the narrow portion 242a, but not at the wide portion 242b.

[0103] Because the narrow portion 242a of the baffle 242 contacts the substrate carrier 130 and deforms therein to form a partial seal, a seal is formed between the narrow portion 242a and the surface of the substrate carrier 130, while the wide portion 242b of the baffle 242 does not contact the substrate carrier 130 and provides space between the baffle 242 and the substrate carrier 130. This is a result of providing an elliptical central aperture 244 and a cylindrical substrate carrier 130. The gap in the partial seal is configured to provide an airflow path between the baffle 242 and the substrate carrier 130 from the outside of the aerosol generating device 100 into the heating chamber 108. The airflow path is formed by... Figure 10 Arrow B in the diagram indicates this.

[0104] Providing a portion of the baffle 242 to seal against the substrate carrier 130 can improve heat and vapor retention within the heating chamber 108, while the airflow path allows air to enter the heating chamber 108 for intake. Therefore, the shape and size of the central orifice 244 can be selected to adjust the size of the space between the portion of the baffle 242 and the substrate carrier 130, in order to balance heat and vapor retention for ease of drawing fresh air into the heating chamber 108.

[0105] Providing a partial seal rather than a complete seal also means that airflow can be supplied to the heating chamber 108, as in the first embodiment, without further deforming the baffle 242 to a third configuration. This means that the baffle 242 can be made of a less deformable material.

[0106] Third Embodiment

[0107] Now for reference Figure 11 and Figure 12 The aerosol generating apparatus according to the third embodiment will be described. Except as explained below, the aerosol generating apparatus 100 of the third embodiment is similar to the reference 100. Figures 1 to 7 The aerosol generating apparatus 100 of the first embodiment described is identical, and the same reference numerals are used to indicate similar features. In particular, Figure 11 and Figure 12 A detailed view of the heating chamber 108 is shown. The aerosol generating device 100 of the third embodiment has an alternative baffle 342, which is different from the baffles 142 and 242 of the first and second embodiments.

[0108] For more details, see the reference. Figure 11 and Figure 12The baffle 342 is similar to the baffle 142 of the first embodiment, but instead includes four perforations 346 and includes an edge 348. Other variations of the third embodiment may have other numbers of perforations 342, such as one or more, including two, three, five, six, seven, or eight perforations 346, or possibly more. The perforations 346 may also be referred to as holes, openings, or gaps. In the third embodiment, the perforations 346 have a circular cross-section, but other shapes are envisioned, such as a square cross-section, and different perforations 346 may have different cross-sectional shapes.

[0109] The baffle 342 has an annular shape, and its edge 348 is arranged around the outer circumference of the baffle 342. The edge 348 is a ring that cooperates with the housing 102. That is, the outer circumference of the edge 348 is equal to the inner circumference of the housing 102. The edge 348 has an inner circumference that is attached to the baffle 342. The sealing surface 343 is positioned toward the inner edge of the baffle 342.

[0110] Edge 348 provides additional support to baffle 342 and can allow for a thinner and more flexible baffle 342 while maintaining the structure. Edge 348 is made of a robust material to support baffle 342 and maintain cooperation between heating chamber 108 and housing 102. Baffle 342 can be more flexible than edge 348 to allow deformation, as described above with reference to the first and second embodiments. In some embodiments, baffle 342 with perforations 346 may be provided without edge 348, for example, instead of baffle 242 of the second embodiment. It should also be understood that edge 348 can be provided to baffles of other embodiments, such as baffle 142 without perforations according to the first embodiment.

[0111] In the third embodiment, the baffle 342 is arranged to extend from the edge 348 toward the central axis X. In the third embodiment, the baffle 342 extends toward the central axis X by the same amount as in the first embodiment. Therefore, the total width of the ring of the baffle 342 is smaller than that of the baffle 142 in the first embodiment. The boundary between the baffle 342 and the edge 348 is arranged to be axially aligned with the tubular wall 114 such that the baffle 342 covers a portion of the internal volume of the heating chamber 108 at the opening end 110. Therefore, the edge 348 does not overlap with the internal volume of the heating chamber 108. The perforation 346 extends through the entire thickness of the baffle 342, thereby allowing air to flow through the baffle 342 in a controlled manner.

[0112] Perforations 346 are arranged in a ring around baffle 342. In the third embodiment, the perforations 346 are arranged so that they are uniformly distributed around the ring of baffle 342, such that there is an equal spacing between each adjacent perforation 346. Providing a uniform spacing between the perforations 346 enables a uniform airflow around the matrix carrier 130, as described below. The perforations 346 have a diameter smaller than the distance between the inner diameter of the baffle 342 closest to the central axis X and the tubular wall 114. Baffle 342 also includes a central aperture 344 similar to the central aperture 144 of the first embodiment. The perforations 346 are arranged toward the inner circumference of the annular baffle 342; that is, toward the central aperture 344. Since baffle 342 is arranged closer to the central axis X than the tubular wall 114, the perforations 346 are arranged closer to the central axis X than the tubular wall 114. This means that the perforations 346 are arranged radially between the tubular wall 114 and the central axis X. Therefore, the perforation 346 is arranged at a position coinciding with the internal volume of the heating chamber 108 in the axial direction. Thus, the distance between the opposite perforations 346 on the opposite side of the baffle 342 is less than the width of the tubular wall 114. This means that the perforation 346 is arranged to provide fluid communication between the internal volume of the heating chamber 108 through the open end 110 and the external environment beyond the second end 106 of the aerosol generating device 100. In other words, the perforation 346 provides other openings between the internal volume of the heating chamber 108 and the external environment, in addition to the central orifice 344. In cases where the baffle 342 has a wider outer diameter than the tubular wall 114, such as the baffle 142 in the first embodiment, the perforation 346 is arranged in the portion of the baffle 342 between the tubular wall 114 and the central axis X, as described above, to achieve fluid communication with both the internal volume of the heating chamber 108 and the external environment.

[0113] refer to Figure 12 When the user inserts the substrate carrier 130 into the heating chamber 108, the end 134 contacts the sealing surface 343 and deforms the baffle 342 to form a seal against the substrate carrier 130. This causes the sealing surface to deflect more towards the substrate carrier 130. This can be considered a second configuration, as described above in the first embodiment. In the third embodiment, the perforations 346 are configured to remain open throughout the deformation, such that they provide fluid communication between the internal volume of the heating chamber 108 and the external environment, even when the central orifice 344 is sealed by the substrate carrier 130.

[0114] like Figure 12 As shown, when the substrate carrier 130 is inserted and the baffle 342 further forms a seal, the perforation 346 provides an opening and thus provides an airflow path through the open end 110. When the user... Figure 12When the aerosol is drawn in the direction of arrow A, this draws air into the heating chamber 108. The airflow through the perforations 346 in the baffle 342 is... Figure 12 Arrow B indicates this. In this way, the baffle 342 does not need to be variably configured to allow airflow as in the first embodiment, because airflow is instead provided through the perforation 346.

[0115] The perforations 346 can alter the suction resistance. This means that more air can be drawn into the heating chamber 108 more easily. The size, number, and location of the perforations 346 can be selected to balance the suction resistance and the potential heat or vapor loss associated with having such perforations 346. Preferably, the pressure drop is selected to be in the range of 20 mm to 120 mm of water column, and more preferably between 60 mm and 100 mm of water column. In Pascals, the pressure drop is preferably selected to be in the range of approximately 200 Pa to 1200 Pa, and more preferably between approximately 600 Pa and 1000 Pa.

[0116] In a third embodiment, the perforation 346 is a hole with a constant diameter that passes through the thickness of the baffle 342. That is, the perforation 346 is the same size on the upper surface of the baffle 342 at the second end 106 of the baffle 342, which is arranged closest to the aerosol generating device 100, and on the lower surface of the baffle 342 on the opposite side of the base 112 of the baffle 342, which is closest to the heating chamber 108. In other embodiments, the perforation 346 has a different width through the thickness of the baffle 342. When the baffle 342 is modified into a second configuration, in some examples, the size of the perforation 346 is reduced, particularly at the lower surface of the baffle 342, thereby restricting the airflow through the perforation 346 even if the portion of the baffle 342 including the perforation 346 is significantly deformed. In some embodiments, the size of the perforation 346 is set to ensure that even when the baffle 342 is modified into a second configuration by receiving the matrix carrier 130, the perforation 346 remains sufficiently open to allow airflow. In some embodiments, this involves providing a perforation 346 spaced apart from the central opening 344 to prevent significant deformation of the portion of the baffle 342 including the perforation 346, or in alternative embodiments, it involves providing a sufficiently wide perforation 346 to prevent the perforation 346 from closing during deformation, including providing a wider perforation 346 at the lower surface of the baffle 342, for example, the wider perforation shrinking during deformation.

[0117] Furthermore, in some embodiments, the baffle 342 can be configured in a third configuration in the same manner as in the second embodiment, wherein, in addition to temporarily breaking the seal when the user applies suction in the third configuration, the perforation 346 further increases the suction resistance.

[0118] In some examples of the third embodiment, the perforation 346 may be equipped with a one-way flow valve, such as a rubber slit valve or an artificial variant of a one-way flow valve found in human veins. This can further help retain heat and aerosols within the heating chamber 108.

[0119] Despite Figure 11 and Figure 12 Only heating chamber 108 is shown in the third embodiment, but it can be readily incorporated as part of the entire aerosol generating apparatus 100, for example, instead of Figure 2 The heating chamber 108 in the middle.

[0120] It should be understood that the perforation 346 in the baffle 342 of the third embodiment can be readily applied to other embodiments, such as embodiments with alternative baffles (such as the baffle 442 of the fourth embodiment).

[0121] Fourth embodiment

[0122] Now for reference Figure 13 and Figure 14 The fourth embodiment will be described below. Except as explained below, the aerosol generating apparatus 100 of the fourth embodiment is similar to the reference [reference document]. Figures 1 to 7 The aerosol generating device 100 of the first embodiment described herein is identical, and the same reference numerals are used to indicate similar features. The aerosol generating device 100 of the fourth embodiment has an alternative baffle 442, which is different from the baffle 142 of the first embodiment.

[0123] In more detail, Figure 13 and Figure 14 A detailed schematic perspective view of the heating chamber 108 with its protruding baffle 442 is shown. (Reference) Figure 13 The baffle 442 has a rim 448, wherein the baffle 442 is attached to the inner circumference of the rim 448. The baffle 442 is shown in a first configuration, wherein the baffle 442 is not deformed and the matrix carrier 130 has not yet been loaded into the heating chamber 108. The baffle 442 includes a membrane. Alternatively, the baffle 442 can be considered as a partition or valve separating the internal volume of the heating chamber 108 from the external environment.

[0124] Edge 448 is the same as edge 342 in the third embodiment. Edge 448 has an inner circumference attached to baffle 442. In some embodiments, baffle 442 of the fourth embodiment having section 450 as described below may not have edge 448, for example, instead of baffle 142 of the first embodiment. It should also be understood that edge 448 may be provided to baffles of other embodiments, such as baffle 142 according to the first embodiment. For example, baffle 442 may extend to housing 102, such as baffle 142 in the first embodiment, or the outer circumference of baffle 442 may be attached to tubular wall 114, such as in the sixth or seventh embodiment, wherein baffles 642, 742 are arranged inside heating chamber 108.

[0125] Baffle 442 is centered on the central axis X. Baffle 442 includes multiple segments 450, such that the membrane of baffle 442 is divided into multiple segments 450. Reference Figure 13 The baffle 442 includes four segments 450. Each segment 450 is generally circularly sector-shaped. A circular sector is defined as a portion of a solid circle (i.e., a disk) closed at a certain angle by two radially separated sides at the center, and the sector has an arc length that is a portion of the circumference of the circle between the two radii. In the fourth embodiment, each segment 450 includes two sides, each side defining the boundary of the segment 450. Each of these sides generally forms the radius of the baffle 442, but may have a length slightly shorter than the radius, such as... Figure 13 As shown, the baffle 442 is divided into four equally sized circular sector-shaped segments 450, each segment 450 being approximately a quarter circle. That is, the central angle between the two radial sides of each segment 450 is approximately 90°. This shape is geometrically referred to as a quadrant. It should be understood that this embodiment can be readily extrapolated to alternative numbers of segments 450, such as six segments 450, each with a central angle of approximately 60°, and so on.

[0126] A portion of each segment 450 facing the center of the baffle 442 is triangular in shape. The shape of the segment 450 can be described as petal-shaped, leaflet-shaped, or canine-tooth-shaped. The baffle 442 can be described as a four-cusped petal or four-canine tooth with four canine-tooth segments 450. The segment 450 can otherwise be described as a cover, while the membrane of the baffle 442 as a whole is described as a cover.

[0127] Segment 450 extends toward the central axis X. Each segment 450 is a circular sector shape, wherein the outer end defines an arc attached to the edge 448, and wherein the segment 450 narrows in a triangular shape toward the central axis X, thereby reaching a point at the central axis X. Each segment 450 extends substantially to the point where it intersects the central axis X, such that each segment 450 meets at the central axis, which coincides with the geometric center of the baffle 442. The sealing surface 443 of the baffle 442 is located on the triangular portion of each cover.

[0128] Segment 450 is attached to edge 448 at the outer circumference of baffle 442. In a fourth embodiment, segments 450 engage with each other toward the outer circumference. That is, they are continuous. Therefore, segments 450 engage with edge 448 around the entire outer circumference. In other embodiments, segments 450 are not engaged together, and segments 450 are separate, distinct, and optionally spaced apart from each other and discontinuous around edge 448, such that segments 450 do not engage with edge 448 around the entire outer circumference.

[0129] The baffle 442 includes a slit 452 arranged between sections 450. (Reference) Figure 13 The slits 452 are arranged in a cross shape, thereby dividing the baffle 442 into four separate segments 450. More specifically, the slits 452 are formed by two intersecting slits that intersect at the center of the baffle 442. The slits 452 extend through the entire height (or thickness) of the baffle 442. The slits 452 partially separate each segment 450 from each other. In particular, the slits 452 are arranged between the radial sides of adjacent segments 450. The slits 452 extend from the center of the circular membrane of the baffle 442 (i.e., at the central axis) along each radial side of each segment 450 toward the outer circumference. However, the slits 452 do not extend completely toward the outer circumference of the membrane of the baffle 442. That is, the slits 452 define the interval between adjacent segments 450 from the central axis X along a portion of the radius of the baffle 442. Therefore, adjacent segments 450 join together toward the outer circumference to which the slits 452 do not extend. Therefore, section 450 is continuous towards the outer circumference, but discontinuous towards the center of baffle 442.

[0130] In general, segment 450 can be considered as being attached together at their respective arc lengths and separated at their radial sides. Therefore, segment 450 is independently movable at its separated position via slit 452. Since baffle 442 is deformable, each segment 450 is deformable and not constrained by attachment to other segments 450. This allows each segment 450 to deform and deflect individually when receiving the matrix carrier 130, as described below.

[0131] In the fourth embodiment, slit 452 is configured as separate segments 450, but does not provide a significant gap between them when the substrate carrier 130 is not present. Segments 450 are arranged to contact adjacent segments 450, even if they are not joined together. Additionally, segments 450 contact each other where their points meet at the center of baffle 442. Therefore, baffle 442 provides complete coverage in the first configuration and helps prevent contaminants from entering the heating chamber 108 when the aerosol generating device 100 is not in use. Thus, the fourth embodiment provides a seal (e.g., an airtight seal), even in the first configuration where the substrate carrier 130 has not yet been inserted. However, in some examples, due to the manufacturing process, slit 452 may have a sufficiently large width to prevent adjacent segments 450 from contacting, for example, where material is cut to form slit 452.

[0132] Since the segments 450 meet but do not join at the center of the baffle 442, there is no central opening defined by the baffle 442, unlike the central opening 144 in the first embodiment. Therefore, there are no openings or gaps between the segments 450 at the central axis X. It should be noted that in some cases, small gaps may exist where the segments 450 meet due to manufacturing tolerances. However, it is desirable for the segments 450 to meet in order to provide a baffle 442 covering a circular area. Preferably, there are no openings between the segments 450 at the center. Any opening is smaller than the width of the substrate carrier 130. The ability to provide a baffle 442 without openings improves the coverage of the baffle 442 and helps to keep the interior of the heating chamber 108 clean and free of dirt, dust, moisture, etc., when the substrate carrier 130 is not inserted into the heating chamber 108.

[0133] In other embodiments, segments 450 overlap toward the central axis X. In other embodiments, segments 450 extend to a point near the central axis X, but not completely to the central axis X. For example, this would result in a small central opening between segments 450 at the center of the baffle 442. For example, in some embodiments, the point of the segment 450 is circular at the center, such that the segment 450 does not completely extend to the center. In other embodiments, segments 450 are arranged to overlap with adjacent segments 450 to ensure more complete coverage. This would involve segments 450 extending beyond the central axis X, such that segments 450 overlap at the center to ensure no openings.

[0134] In some examples, the membrane of baffle 442 is thinner than that of the annular baffle 142 of the first embodiment. In some examples, the membrane of baffle 442 is more flexible than that of the baffle 142 of the first embodiment.

[0135] refer to Figure 14When a user wants to use the aerosol generating device 100, the substrate carrier 130 can be inserted into the heating chamber 108. To insert the substrate carrier 130 into the heating chamber 108, the end 134 of the substrate carrier 130 is pressed against the sealing surface 443, thereby pushing the section 450 downwards, deforming the baffle 442, and making the sealing surface 443 more facing the central axis X, forming a seal against the outer surface of the substrate carrier 130. Force is continued to be applied to insert the substrate carrier 130 through the baffle 442.

[0136] Since the baffle 442 does not include orifices between sections 450, the substrate carrier 130 must contact the sections 450 of the baffle 442 in order to be inserted into the heating chamber 108. When the substrate carrier 130 is inserted, the sections 450 deform through the substrate carrier 130. Therefore, the baffle 442, and in particular the sections 450, are deformable under the force of the user inserting the substrate carrier 130. The sections 450 are deformable such that when the substrate carrier 130 is inserted toward the heating chamber 108 through the center of the baffle 442, the sections 450 deform toward the base 112 of the heating chamber 108. The sections 450 are pushed toward the base 112 into the internal volume of the heating chamber 108. In particular, the sections 450 bend about an arc length at the outer diameter arranged between adjacent radial sides defined by the slit 452, such that the sections 450 bend away from the plane of the baffle 442, such that in the first configuration, the point on each section closest to the central axis X bends toward the base 112. When the matrix carrier 130 is kept loaded into the aerosol generating device 100, the section 450 is maintained in the deformed position by the matrix carrier 130 in the second configuration.

[0137] Insertion of the substrate carrier 130 involves deformation of a segment 450 of the baffle 442 to expose a central aperture 444 filled by the substrate carrier 130. The central aperture 444 is thus defined by gaps between adjacent segments 442 created by the bending of the segments 450. It should be noted that although the central aperture 444 is formed by the separation of the segments 450, it is at least partially filled by the substrate carrier when the substrate carrier 130 is inserted. The segments 450 deform until the width of the central aperture 444 is approximately the same as the width of the substrate carrier 130. Therefore, the baffle 442 extends less toward the central axis X during deformation of the substrate carrier 130 compared to its undeformed state, in order to allow insertion of the substrate carrier 130. The segments 450 will bend sufficiently to allow insertion of the substrate carrier 130. In some embodiments, the radial side of each segment 450, and therefore the slit 452, is at least larger than the radius of the substrate carrier 130. That is, the radius of the baffle 442 corresponding to the radius of the matrix carrier 130 is configured to deflect upon insertion of the matrix carrier 130. In some examples, this is smaller than the size of the slit 452, such that a portion of the slit exposes the unfilled portion of the central aperture 444 of the matrix carrier 130. This can improve airflow, as discussed below. In other embodiments where the diameter of the slit 452 is smaller than the diameter of the matrix carrier 130, a portion of the baffle 442 disposed between the outer circumference of the baffle 442 and the slit 452 is also configured to deform through the matrix carrier 130 to allow insertion of the matrix carrier 130.

[0138] When the substrate carrier 130 is inserted into the heating chamber 108 and the baffle 442 deforms, the baffle 442 restricts the airflow through the opening end 110 of the heating chamber 108. The baffle 442 forms at least a partial seal with the outer layer 136 of the substrate carrier 130. In the fourth embodiment, the segment 450 defining the central orifice 444 of the baffle 442 abuts against the outer layer 136 of the substrate carrier 130 to form a partial seal. This is because the baffle 442 deforms to receive the substrate carrier 130 and is under tension from the substrate carrier 130. In the fourth embodiment, the baffle 442 deforms such that the segment 450 separates and presses against the substrate carrier 130. However, this is not a shape complementary to the substrate carrier 130, and a complete seal is not formed around the entire circumference of the substrate carrier 130, but only a partial seal is formed, particularly where gaps exist between adjacent segments 450, especially where the radius of the slit 452 is larger than the radius of the substrate carrier 130.

[0139] In one embodiment, the radius of segment 450, and therefore the radius of slit 452, is the same as or smaller than the radius of substrate carrier 130. Thus, the entire segment 450 deforms upon insertion into substrate carrier 130, and substrate carrier 130 forms a seal continuously around its outer diameter against the outer portion of baffle 442. In this embodiment, substrate carrier 130 forms a seal in a manner similar to the first embodiment, wherein a seal is formed around the entire circumference of substrate carrier 130. In such cases, it may be preferable to include perforations in baffle 442, such as perforation 346 in the third embodiment, to provide airflow. Advantageously, friction between segment 450 and substrate carrier 130 can help retain substrate carrier 130 within heating chamber 108.

[0140] When the substrate carrier 130 is not inserted into the heating chamber 108, the baffle 442 is in the first configuration. (Reference) Figure 13 The image shows baffle 442 in a first configuration. In this first configuration, segment 450 is arranged to contact, and baffle 442 covers the edge of the opening end 110 or the interior volume of the heating chamber 108. When the substrate carrier 130 is inserted into the heating chamber 108, segment 450 of baffle 442 changes from the first configuration to a second configuration. (See reference...) Figure 14 The image shows baffle 442 in a second configuration. This second configuration involves baffle 442 in a deformed position, where segment 450 deflects and bends to allow the substrate carrier 130 to be received in the heating chamber 108 through the central orifice 444. In this second configuration, baffle 442 abuts against the substrate carrier 130 to form a partial seal.

[0141] Partial sealing provides the advantage of heat retention, as described with reference to the first embodiment, while also providing a gap between the substrate carrier 130 and the baffle 442. Specifically, section 450 will not contact the substrate carrier 130 around its entire circumference. There is no complete seal at points between adjacent sections 450. This provides openings between the internal volume of the heating chamber 108 and the external environment through which air can flow. This can increase suction resistance. In some embodiments, this means that perforations in the baffle, such as those in the third embodiment, are not required, thus simplifying manufacturing. In other embodiments, perforations are also provided in the baffle 442 to further increase suction resistance.

[0142] In some embodiments, the segment 450 is arranged to be positioned axially away from the aerosol matrix 132 within the matrix carrier 130 along the central axis X when the matrix carrier 130 is loaded into the heating chamber 108. Specifically, the segment 450 may impede heat transfer from the heater 118 to the aerosol matrix 132, particularly in examples where the segment 450 is made of a material with low thermal conductivity. In one embodiment, the length and / or area of ​​each segment 450 is limited to reduce interference with the heating of the aerosol matrix 132. In another embodiment, a baffle 442 is positioned spaced apart from the aerosol matrix 132 located within the matrix carrier 130. For example, the baffle 442 may be positioned outside the heating chamber 108, as in the first, second, fifth, tenth, eleventh, or twelfth embodiments.

[0143] Similar to the first embodiment, the baffle 442 is elastically deformable such that when the substrate carrier 130 is removed, the segment 450 is configured to elastically move back to the first configuration. This provides a seal when the substrate carrier 130 is removed. This is advantageous when several substrate carriers 130 are used continuously for a relatively short period of time, as heat and vapor can be better retained within the heating chamber 108.

[0144] In some embodiments, the portion of slit 452 furthest from the central axis X is provided with means to prevent the slit from further tearing the baffle (e.g., in the event that a user applies too much force when inserting the matrix carrier 130). These means may include larger perforations or cuts at the outer portions of slit 452, thereby increasing the diameter and reducing force concentration. These may also be doubled as perforations, such as perforation 346 in the fourth embodiment. In some cases, these means may be made of a more robust material (e.g., thicker) or include holes with edges (e.g., made of plastic or metal to improve structural support and prevent tearing).

[0145] Despite Figure 13 and Figure 14 Only heating chamber 108 is shown in the fourth embodiment, but it can be readily incorporated as part of the entire aerosol generating device 100, for example, instead of Figure 2 The heating chamber 108 in the middle.

[0146] It should be understood that the baffle 442 including section 450 in the fourth embodiment can be readily applied to other embodiments, such as embodiments having baffles arranged inside the heating chamber (such as baffle 642 in the sixth embodiment).

[0147] Fifth Embodiment

[0148] Now for reference Figure 15The fifth embodiment will be described below. Except as explained below, the aerosol generating apparatus 100 of the fifth embodiment is similar to the reference [reference document]. Figures 1 to 7 The aerosol generating device 100 of the first embodiment described herein is identical, and the same reference numerals are used to indicate similar features. The aerosol generating device 100 of the fifth embodiment has an alternative airflow path to the airflow path of the first embodiment.

[0149] For more details, see the reference. Figure 15 The aerosol generating apparatus 100 of the fifth embodiment includes an air inlet 554 in the housing 102. The air inlet 554 is disposed in the sidewall of the housing 102 between the heating chamber 108 and the first end 104 of the aerosol generating apparatus 100. In other embodiments, the air inlet 554 may be disposed at the base of the housing 102 towards the first end 104. In the fifth embodiment, the air inlet 554 is disposed near the base 112 of the heating chamber 108. The air inlet 554 provides fluid communication between the external environment and the interior of the housing 102. In some examples, the power supply 120 and the control circuitry 122 within the housing 102 are isolated from the airflow path. For example, in some embodiments, fittings are configured to connect to the air inlet 554 to prevent airflow interference with the control circuitry 122 and the power supply 120. In some embodiments, electrical connections 124 are additionally wired around the airflow path to prevent interference or damage.

[0150] The heating chamber 108 also includes an air inlet 558. The air inlet 558 is disposed in the base 112, but in other examples, it may be disposed in the tubular wall 114. The air inlet 558 is disposed at the center of the base 112, but other locations are contemplated. The air inlet 558 extends through the base 112. The air inlet 558 is configured to provide fluid communication between the internal volume of the heating chamber 108 and the air inlet 554 in the housing 102. Therefore, the external environment is in fluid communication with the internal volume of the heating chamber 108 through the air inlet 554 in the housing 102 and through the air inlet 558 in the base 112 of the heating chamber 108.

[0151] This airflow path provides a pathway for air to flow from the outside into the heating chamber 108. This can be used in conjunction with a baffle 542, similar to the baffle 142 of the first embodiment, except as explained below, particularly in the sense that the insertion of the substrate carrier 130 includes the end 134 contacting the sealing surface 543 and forcing it downwards to deform the baffle 542 and deflect the sealing surface 543 more towards the central axis X to form a seal against the outer surface of the substrate carrier 130. This is advantageous because it is not necessary to draw air from the outside through the opening end 110 between the baffle 542 and the substrate carrier 130 into the heating chamber 108 via the airflow path. Figure 7When (as shown by arrow B in the diagram), baffle 542 can provide a more robust seal. Conversely, alternative airflow paths from the outside through base 112 into heating chamber 108 do not require baffle 542, which is deformable to allow airflow between baffle 542 and substrate carrier 130. Instead, a complete seal can be achieved between baffle 542 and substrate carrier 130, thereby improving heat retention efficiency while allowing airflow from below. For example, to achieve a better seal, the flexibility of baffle 542 can be reduced, or its deformability can be decreased. In alternative embodiments, for a better seal, baffle 542 extends further toward the central axis X than in the first embodiment. However, in other embodiments, baffle 542 can also be configured in a third way to allow more airflow into heating chamber 108 to increase suction resistance.

[0152] When the user is Figure 15 When suction is applied to the substrate carrier 130 in the direction indicated by arrow A, air can be drawn from the outside through the air inlet 554 in the housing 102. Figure 15 In the direction indicated by arrow C and through air inlet 558 in base 112 Figure 15 Air is drawn into the heating chamber 108 in the direction indicated by arrow D. The air is typically heated as it enters the heating chamber 108, which facilitates the transfer of heat to the aerosol matrix 132 via convection.

[0153] It should be understood that in the fifth embodiment, the airflow path through the heating chamber 108 is generally linear; that is, from the base 112 of the heating chamber 108 to the opening end 110 of the heating chamber 108. The arrangement of the fifth embodiment also allows for a reduced gap between the tubular wall 114 of the heating chamber 108 and the substrate carrier 130. In fact, in the fifth embodiment, the diameter of the heating chamber 108 is less than 7.6 mm, and the space between the 7.4 mm diameter substrate carrier 130 and the tubular wall 114 of the heating chamber 108 is less than 1 mm. It should be noted that... Figure 15 It was not drawn to scale.

[0154] In other embodiments, an air inlet 554 in the housing 102 is located at a first end 104 of the aerosol generating device 100. This allows the air passage through the entire aerosol generating device 100 to be generally linear, for example, air entering the aerosol generating device 100 at the first end 104, which is typically distal to the user during use, thereby flowing through (or across, through, etc.) the aerosol matrix 132 within the aerosol generating device 100, and exiting at a second end 140 of the matrix carrier 130 to enter the user's mouth, which is typically proximal to the user during use, for example, in the user's mouth.

[0155] Since the airflow into the heating chamber 108 can be achieved entirely through the use of air inlets 554, 558, the size, shape, and location of the inlets 554, 558 can be appropriately determined to achieve the desired effect. More specifically, the size of the air inlets 554, 558 can be determined to allow for the desired suction resistance, and optionally, this suction resistance can be further balanced with heat loss through the inlets 554, 558. In some examples, the air inlets 554, 558 may be equipped with one-way flow valves to reduce heat leakage. In some examples, the air inlets 558 may be located elsewhere on the heating chamber 108, such as on the tubular wall 114. In such cases, multiple air inlets 554 may be distributed around and / or along the tubular wall 114.

[0156] It should be understood that the alternative airflow path of the fifth embodiment can be readily applied to other embodiments, such as embodiments with alternative baffles (such as baffle 442 of the fourth embodiment).

[0157] Sixth Embodiment

[0158] Now for reference Figure 16 The sixth embodiment will be described below. Except as explained below, the aerosol generating apparatus 100 of the sixth embodiment is similar to the reference [reference document]. Figures 1 to 7 The aerosol generating apparatus 100 of the first embodiment described herein is identical, and the same reference numerals are used to indicate similar features. The aerosol generating apparatus 100 of the sixth embodiment has an alternative baffle 642, which is different from the baffle 142 of the first embodiment.

[0159] For more details, see the reference. Figure 16 A baffle 642 is disposed inside the heating chamber 108. Specifically, the baffle 642 is attached to the inner surface of the tubular wall 114. The baffle 642 extends from the tubular wall 114 toward the central axis X. The baffle 642 is disposed axially near the opening end 110 of the heating chamber 108. In a sixth embodiment, the baffle 642 is disposed inside the heating chamber 108 and arranged such that the upper surface of the second end 106 of the baffle 642 closest to the aerosol generating device 100 is substantially aligned with the opening end 110. In other embodiments, the baffle 642 is spaced apart from the opening end 110 toward the base 112, such as in a seventh embodiment.

[0160] Therefore, the outer circumference of the baffle 642 contacts and is attached to the tubular wall 114. For example, the baffle 642 is fixed to the tubular wall 114 with adhesive. Alternatively, the baffle 642 is received in a recess or protrusion within the tubular wall 114 of the heating chamber 108. In other embodiments, the tubular wall 114 is rolled or bent above the upper surface of the baffle 642 to further secure the baffle 642.

[0161] In the sixth embodiment, the baffle 642 is annular and has a similar shape to the baffle 142 of the first embodiment. Since the outer circumference of the baffle 642 is adjacent to the tubular wall 114, the baffle 642 of the sixth embodiment is smaller than the baffle 142 of the first embodiment. The baffle 642 includes a central aperture 644 defined by the inner diameter of the annulus of the baffle 642. Therefore, the width of the central aperture 644 is smaller than the width of the tubular wall 114. In the sixth embodiment, the central aperture 644 has the same width as the central aperture 144 of the first embodiment. Therefore, the baffle 642 of the sixth embodiment extends from the tubular wall 114 toward the central axis X by the same amount as the baffle 142 of the first embodiment extends toward the central axis X. Therefore, the sixth embodiment provides an alternative arrangement that provides a central aperture 644 of a similar size when compared to the central aperture 144 of the first embodiment. Therefore, the annular width of the baffle 642 between its inner and outer diameters is smaller than that of the first embodiment. The width of baffle 642 can be the same as the width of baffle 342 in the third embodiment.

[0162] In other embodiments, the central aperture 644 is smaller than the central aperture 144 in the first embodiment. Therefore, this requires the baffle 642 to deform more through the matrix carrier 130, but provides a tighter seal. As in the first embodiment, insertion of the matrix carrier 130 involves the end 134 contacting the sealing surface 643 and forcing it downwards to deform the baffle 642 and deflect the sealing surface 643 more towards the central axis X to form a seal against the outer surface of the matrix carrier 130.

[0163] It should be understood that the baffle 642 inside the heating chamber 108 in the sixth embodiment can be readily applied to other embodiments, such as embodiments with alternative baffles (such as the baffle 442 of the fourth embodiment) or with the perforation 346 of the third embodiment.

[0164] Seventh Embodiment

[0165] Now for reference Figure 17 The seventh embodiment will be described below. Except as explained below, the aerosol generating apparatus 100 of the seventh embodiment is similar to the reference [reference document]. Figure 16 The aerosol generating apparatus 100 of the sixth embodiment is identical to that described, and the same reference numerals are used to indicate similar features. The aerosol generating apparatus 100 of the seventh embodiment has a baffle 742, which is positioned differently from the baffle 642 of the sixth embodiment.

[0166] For more details, see the reference. Figure 17The baffle 742 is located inside the heating chamber 108 and is the same as the baffle 642 of the sixth embodiment, except that the baffle 742 of the seventh embodiment is arranged to be spaced apart from the opening end 110 and is positioned further toward the base 112 than the baffle 642 of the sixth embodiment.

[0167] Positioning the baffle 742 further from the opening end 110 limits the internal volume available for heating air between the baffle 742 and the base 112, and between the matrix carrier 130 and the tubular wall 114. This may be desirable when it is desired to heat a small volume of air to a high temperature, whereas a larger volume would require high power to heat to the required temperature or would take a long time to reach that temperature. By providing a smaller volume, faster heating and a shorter initial smoke time can be achieved. However, it is preferable to ensure sufficient volume to collect and heat air within the heating chamber 108, and therefore in some examples, the baffle 742 is positioned sufficiently towards the opening end 110 to provide the required volume within the heating volume 108.

[0168] In some embodiments, it is desirable that the baffle 742 is not positioned to overlap with the aerosol matrix 132. That is, the baffle 742 is not positioned closer to the axial position of the base 112 than the boundary between the aerosol matrix 132 and the aerosol collection area 134, wherein the aerosol matrix 132 is not positioned toward the second end 140 of the matrix carrier 130. In other words, the baffle 742 is positioned such that the aerosol matrix 132 is disposed between the baffle 742 and the base 112. If the baffle 742 is positioned between a portion of the aerosol matrix 132 and the internal volume of the heating chamber 108, then that portion of the aerosol matrix 132 will experience a reduction in heating. Therefore, in some cases, the entire aerosol matrix 132 is positioned between the baffle 742 and the base 112 of the heating chamber 108, such as in the first embodiment. Figure 7 As shown in the diagram. This can also be applied to other embodiments. Thus, in the seventh embodiment, the distance between the baffle 742 and the outlet end 110 is selected to balance improved heat retention with the time of first inhalation, while ensuring that the aerosol matrix 132 is contained within the sealed portion of the heating chamber 108 and is adequately heated. As in the first embodiment, insertion of the matrix carrier 130 includes the end 134 contacting the sealing surface 743 and forcing it downward to deform the baffle 742 and deflect the sealing surface 743 more towards the central axis X to abut against the outer surface of the matrix carrier 130 to form a seal.

[0169] In other embodiments, it may be suitable to arrange the baffle 742 in alignment with the boundary between the aerosol matrix 132 and the aerosol collection area 134 in order to help provide a seal at that location to retain heat within the aerosol matrix 132.

[0170] It should be understood that the variability of the position of the baffle 742 relative to the opening end 110 of the heating chamber 108 in the seventh embodiment can be readily applied to other embodiments, such as embodiments with alternative baffles (such as the baffle 442 of the fourth embodiment).

[0171] Eighth embodiment

[0172] Now for reference Figure 18 The eighth embodiment will be described below. Except as explained below, the aerosol generating apparatus 100 of the eighth embodiment is similar to the reference [reference document]. Figure 16 The aerosol generating apparatus 100 of the sixth embodiment is identical to that described, and the same reference numerals are used to indicate similar features. The aerosol generating apparatus 100 of the eighth embodiment has a baffle 842, which is different from the baffle 642 of the sixth embodiment.

[0173] For more details, see the reference. Figure 18 A baffle 842, similar to the baffle 642 of the sixth embodiment, is disposed inside the heating chamber 108. The baffle 842 is identical to the baffle 642 of the sixth embodiment, except that the baffle 842 of the eighth embodiment includes a tapered portion 860. That is, the baffle 842 has a tapered profile. More specifically, the baffle 842 tapers in the radial direction. The baffle 842 also defines a central aperture 844. The upper surface of the baffle 842 tapers away from the base 112 toward the opening end 110. The tapered portion 860 increases the width of the central aperture 844 away from the base 112 toward the opening end 110. That is, the width of the central aperture 844 is smaller at the point of the baffle 842 closest to the base 112 and wider at the point of the baffle 842 furthest from the base 112. Therefore, the inner diameter of the baffle 842 increases axially from the lower surface of the baffle 842, which is arranged closest to the base 112, toward the upper surface of the baffle 842, which is arranged furthest from the base 112. In the eighth embodiment, the increase in the diameter of the tapered portion 860 is linear. That is, the tapered portion 860 is straight, and the diameter increases smoothly at a constant rate. In the eighth embodiment, the inclined tapered surface 860 also serves as a sealing surface 843. As in the first embodiment, the insertion of the substrate carrier 130 includes the end 134 contacting the sealing surface 843 and forcing it downward to deform the baffle 842 and deflect the sealing surface 843 more towards the central axis X to abut against the outer surface of the substrate carrier 130 to form a seal.

[0174] The tapered portion 860 provides a reduced width for the central aperture 844 to allow insertion of the substrate carrier 130. Therefore, the tapered portion 860 provides guidance for receiving the substrate carrier 130 and can facilitate loading the substrate carrier 130 into the heating chamber 108. Additionally, by providing a gradually increasing tapered portion 860, the force required to deform the baffle 842 to insert the substrate carrier 130 is reduced, and the risk of damaging the substrate carrier during insertion (e.g., tearing the paper of the outer layer 136 and exposing the aerosol substrate 132) is less. The innermost portion of the baffle 842 (closest to the central axis X) is the thinnest and therefore the most flexible, which improves the seal formed against the substrate carrier 130.

[0175] In some examples, the baffle 842 includes a tapered portion 860 and also includes a constant-thickness portion between the central axis X and the tubular wall 114. For example, a ring surrounding the tapered portion 860 extends to the tubular wall 114 having a constant thickness.

[0176] In other embodiments, the diameter of the tapered portion 860 increases non-linearly. For example, the ramp may not be a constant gradient, but rather increases or decreases towards the base 112. In one example, the ramp gradient decreases towards the base 112 to reduce the force initially applied to the matrix carrier 130, while still providing an effective seal. Figure 18 Besides the tapered design shown, other shape profiles are possible. For example, a circular profile or a profile where the widest point is the midpoint of baffle 842 is also conceivable.

[0177] It should be understood that the tapered portion 860 in the eighth embodiment can be readily applied to other embodiments, such as embodiments having a baffle (such as the baffle 142 of the first embodiment) arranged outside the heating chamber.

[0178] Ninth Embodiment

[0179] Now for reference Figure 19 The ninth embodiment will be described below. Except as explained below, the aerosol generating apparatus 100 of the ninth embodiment is similar to the reference [reference document]. Figure 16 The aerosol generating apparatus 100 of the sixth embodiment is identical to that described, and the same reference numerals are used to indicate similar features. The aerosol generating apparatus 100 of the ninth embodiment has a baffle 942, which is different from the baffle 642 of the sixth embodiment.

[0180] For more details, see the reference. Figure 19Baffle 942, similar to baffle 642 of the sixth embodiment, is arranged inside the heating chamber 108, but baffle 942 includes a first baffle element 942c and a second baffle element 942d. In the ninth embodiment, the first baffle element 942c and the second baffle element 942d are each identical to baffle 642 of the sixth embodiment. That is, the first baffle element 942c and the second baffle element 942d are annular, arranged inside the heating chamber 108, and configured to deform when the matrix carrier 130 is inserted in the manner described herein. The first baffle element 942c is arranged near the opening end 110 at the same position as baffle 642 in the sixth embodiment, while the second baffle element 942d is arranged spaced apart from the opening end 110 toward the base 112, as in the seventh embodiment. By providing two baffle elements 942c and 942d spaced axially along the tubular wall 114, heat and vapor retention can be further improved. The outermost surface of the first baffle element 942c also serves as a sealing surface. As in the first embodiment, insertion of the substrate carrier 130 includes the end 134 contacting the sealing surface 943 and forcing it downward to deform the baffle 942 and deflect the sealing surface 943 more toward the central axis X to abut against the outer surface of the substrate carrier 130 to form a seal.

[0181] Each of the baffle elements 942c and 942d can be a baffle of any embodiment disclosed herein. For example, at least one of the first baffle element 942c and the second baffle element 942d may include a tapered portion, as in the eighth embodiment, or may include a segment, as in the fourth embodiment. In some examples, baffle elements 942c and 942d are identical, but in other examples they may be different. For example, the first baffle element 942c may be identical to the baffle 442 of the fourth embodiment, which includes a segment 450, to form a cover at the opening end 110 to prevent dust from entering the heating chamber 108 when the aerosol generating device 100 is not in use, while the second baffle element 942d may be identical to the baffle 642 of the sixth embodiment to provide a more robust seal within the heating chamber 108.

[0182] It should be understood that the baffle 942 may further include additional baffle elements. For example, at least three baffle elements may be present, positioned at different locations along the length of the tubular wall 114. Additionally, in addition to the baffle elements inside the heating chamber 108, one or more baffle elements may be positioned outside the heating chamber 108.

[0183] It should be understood that the first baffle element 942c and the second baffle element 942d of the ninth embodiment can be readily applied to other embodiments, such as embodiments with alternative baffles (such as the baffle 442 of the fourth embodiment). In fact, the first baffle element 942c and the second baffle element 942d can have different shapes and / or sizes; for example, one can be the baffle 642 of the sixth embodiment and the other can be the tapered profile baffle 842 of the eighth embodiment.

[0184] Tenth Embodiment

[0185] Now for reference Figure 20 and Figure 21 The tenth embodiment will be described below. Except as explained below, the aerosol generating apparatus 100 of the tenth embodiment is similar to the reference [reference document]. Figures 1 to 7 The aerosol generating apparatus 100 of the first embodiment described herein is identical, and the same reference numerals are used to indicate similar features. The aerosol generating apparatus 100 of the tenth embodiment has a baffle 1042, which is different from the baffle 142 of the first embodiment.

[0186] For more details, see the reference. Figure 20 The aerosol generating device 100 includes a cover 1062 configured to be inserted into a second end 106 of the aerosol generating device 100. The cover 1062 includes a first wall 1064 having a cylindrical shape. The first wall 1064 is the outermost wall of the cover 1062. The first wall 1064 is arranged to be inserted into the second end 106 such that a lower portion of the first wall 1064 slides into a corresponding recess 1063.

[0187] The cover 1062 includes a second wall 1066 having a cylindrical shape. The diameter of the second wall 1066 is smaller than the diameter of the first wall 1064. The first wall 1064 and the second wall 1066 are arranged concentrically and both are arranged with the central axis X as the center. In some examples, the diameter of the second wall 1066 is similar to the diameter of the tubular wall 114.

[0188] The first wall 1064 connects to the second wall 1066 at the top of the cover 1062, wherein the top of the cover 1062 is furthest from the first end 104 of the aerosol generating device 100 when the cover 1062 is loaded onto the aerosol generating device 100. Therefore, the cover 1064 forms a U-shaped cross-section and is arranged to fit into a recess 1063 in the housing 102 of the aerosol generating device 100, and the recess ensures that the cover is correctly positioned relative to an opening in the housing 102. (Reference) Figure 21 When the cover 1062 is positioned on the aerosol generating device 100, the second wall 1066 extends toward the second end 106 of the aerosol generating device 100 to a point near the opening end 110 of the heating chamber 108.

[0189] The cover 1062 includes a baffle 1042 disposed on the second wall 1066. In the tenth embodiment, the baffle 1042 is arranged to extend from the end of the second wall 1066 arranged near the opening end 110 and has a sealing surface facing the outside of the cover. The baffle 1042 is arranged to extend toward the central axis X. When the cover 1062 is inserted onto the aerosol generating device 100, the baffle 1042 covers an opening in the housing 102 to allow the matrix carrier 130 to be inserted through the opening while engaging with the baffle 1042, as described above. In the tenth embodiment, the baffle 1042 is disposed between the heating chamber 108 and the second wall 1066 of the cover 1062. In other embodiments, the baffle 1042 is disposed inside the inner diameter of the second wall 1066 in a manner similar to the baffle 642 of the sixth embodiment. Furthermore, the baffle 1042 can be arranged away from the outlet end 110, for example, located inside the inner diameter of the second wall 1066 and arranged further away from the second end 106 of the aerosol generating device 100. As in the first embodiment, insertion of the matrix carrier 130 includes the end 134 contacting the sealing surface 1043 and forcing it downward to deform the baffle 1042 and deflect the sealing surface 1043 more towards the central axis X to abut against the outer surface of the matrix carrier 130 to form a seal.

[0190] The tenth embodiment allows the baffle 1042 to be detached from the heating chamber 108 and the aerosol generating device 100. This allows for easier cleaning of the heating chamber 108 by removing the baffle 1042 so that it does not obstruct cleaning tools from entering the heating chamber 108. Furthermore, this allows the baffle 1042 itself to be cleaned separately from the heating chamber 108. In an alternative embodiment, the heating chamber 108 itself may be removed from the aerosol generating device 100. Additionally, using a cover 1062 with the baffle 1042 provides an opportunity to modify conventional devices with the baffle, for example, by attaching the cover to the housing using clamps, strips, adhesives, etc.

[0191] The cap 1062 may taper away from the second end 106 or be otherwise shaped to provide a mouthpiece that is comfortable for the user, for example in cases where the matrix carrier 130 does not extend further away from the second end 106 than the cap 1062.

[0192] It should be understood that the cover 1062 of the tenth embodiment can be readily applied to other embodiments, such as embodiments with alternative baffles (such as baffle 442 of the fourth embodiment).

[0193] Eleventh Embodiment

[0194] Now for reference Figure 22The eleventh embodiment will be described below. Except as explained below, the aerosol generating apparatus 100 of the eleventh embodiment is similar to the reference [reference document]. Figures 1 to 7 The aerosol generating apparatus 100 of the first embodiment described herein is identical, and the same reference numerals are used to indicate similar features. The aerosol generating apparatus 100 of the eleventh embodiment has a heating chamber 1108, which is different from the heating chamber 108 of the first embodiment.

[0195] In general, the eleventh embodiment is provided as an exemplary system in which the previous embodiments described herein can be practically implemented. In particular, the baffle of any of the previous embodiments can be implemented in the aerosol generating apparatus 100 of the eleventh embodiment.

[0196] For more details, see the reference. Figure 22 The aerosol generating device 100 includes a heating chamber 108, which is generally cup-shaped, similar to the heating chamber 108 of the first embodiment, and has similar dimensions, except as described below. The heating chamber 108 is arranged to receive a matrix carrier 130. A baffle 1142 is arranged toward a second end 106 of the aerosol generating device 100, wherein a sealing surface 1143 faces outward. The baffle 1142 is identical to the baffle 142 of the first embodiment and is configured to deform to receive the matrix carrier 130 into the heating chamber 108. As in the first embodiment, insertion of the matrix carrier 130 includes the end 134 contacting the sealing surface 1143 and forcing it downward to deform the baffle 1142 and deflect the sealing surface 1143 more towards the central axis X to form a seal against the outer surface of the matrix carrier 130.

[0197] A plurality of protrusions 1174 are formed in the inner surface of the tubular wall 114. The protrusions 1174 are indentations in the tubular wall 114 extending toward the central axis X. The protrusions 1174 reduce the effective diameter of the tubular wall 114 in which these protrusions are present. The protrusions 1174 are formed by curling the tubular wall 114 or otherwise creating the indentations. The width of the protrusions 1174 surrounding the periphery of the tubular wall 114 is smaller than its length, which is parallel to the central axis X (or more broadly, in the direction from the base 112 of the heating chamber 108 to the opening end 110). In this embodiment, there are four protrusions 1174, but... Figure 22 Only two can be seen in the cross-section. Four is a suitable number of protrusions 1174 used to hold the substrate carrier 130 in a central position within the heating chamber 108 by applying pressure on the opposite side of the substrate carrier 130. Other numbers of protrusions 1174 are contemplated, such as two, six, eight or more.

[0198] The protrusions 1174 are arranged around the circumference of the tubular wall 114 and are evenly spaced around the tubular wall 1174. By setting the protrusions 1174 to be evenly spaced around the tubular wall 114 and having the same indentation depth toward the central axis X into the interior of the heating chamber 108, it means that the substrate carrier 130 can be kept in a central position in the heating chamber 108.

[0199] The protrusion 1174 serves multiple purposes, and its exact form (and the corresponding indentation on the outer surface of the tubular wall 114) is chosen based on the desired effect. In any case, the protrusion 1174 extends toward and engages the matrix carrier 130, and is therefore sometimes referred to as an engagement element. In fact, the terms "protrusion" and "engagement element" are used interchangeably herein. Similarly, when the protrusion 1174 is provided by extruding the tubular wall 114 from the outside, for example by hydroforming or pressing, the term "indentation" is also used interchangeably with the terms "protrusion" and "engagement element." The advantage of forming the protrusion 1174 by creating an indentation in the tubular wall 114 is that these protrusions are integral with the tubular wall 114, thus minimizing their impact on heat flow. Furthermore, the protrusion 1174 does not add any thermal mass, which would be added if additional elements were added to the inner surface of the tubular wall 114 of the heating chamber 108. Finally, as described, creating indentations in the tubular wall 114 increases the strength of the tubular wall 114 by introducing a portion that extends transversely to the tubular wall 114, thus providing resistance to bending of the tubular wall 114 and allowing the tubular wall 114 to be made thinner, thereby increasing thermal conductivity across its thickness.

[0200] The aerosol generating device 100 operates through both conduction and convection. Heat is conducted from the surface of the protrusions 1174 that abut against the outer layer 136 of the matrix carrier 130. Convection is achieved by heating the air in the air gap between the inner surface of the tubular wall 114 and the outer layer 136 of the matrix carrier 130. That is, when a user inhales the aerosol generating device 100, convective heating of the aerosol matrix 132 occurs because heated air is drawn through the aerosol matrix 132. The width and height (i.e., the distance each protrusion 1174 extends into the heating chamber 108) increase the surface area of ​​the tubular wall 114 that transfers heat to the air, thus allowing the aerosol generating device 100 to reach its effective temperature more quickly.

[0201] The protrusion 1174 interacts with the matrix carrier 130, causing a portion of the aerosol matrix 132 to compress along the length of the protrusion 1174. (Reference) Figure 22The matrix carrier 130 is compressed and received into the heating chamber 108 via protrusions 1174. Compression of the aerosol matrix 132 improves conductivity within the aerosol matrix 132 and can result in more efficient and uniform heating, particularly in the central region. Each protrusion 1174 includes an upper end arranged toward the second end 106, wherein the protrusion 1174 encounters the tubular wall 114. In an eleventh embodiment, the upper end is an angled tapered shape that smoothly increases the diameter of the tubular wall 114 toward the protrusion 1174.

[0202] Combining the protrusion 1174 around the substrate carrier 130 with the baffle 1142 helps to align the substrate carrier 130 with the center of the heating chamber 108, thereby providing more uniform heating of the aerosol substrate 132 and a more uniform airflow around the substrate carrier 130. Furthermore, the protrusion 1174 reduces the internal volume of the heating chamber 108 to provide better heating efficiency and provides a seal at the opening end 110 via the baffle 1168.

[0203] The heating chamber 108 further includes a platform 1180 in the base 112. The platform 1180 elevates the first end 138 of the substrate carrier 130 relative to the base 112, allowing air to enter the first end 138 around the platform 1180. Therefore, the platform 1180 has a smaller width than the first end 138. Air in the heating chamber 108 can then be drawn in by a user through the first end 1138. Figure 22 Arrow A in the diagram indicates this.

[0204] A platform 1180 will be provided in the base 112 of the heating chamber 108 to improve airflow through the first end 138 of the substrate carrier 130 and, as Figure 22 The combination of airflow paths indicated by arrow B in the diagram provides an optimal airflow that balances the air supply and suction resistance for the aerosolization of the aerosol matrix 132. In some embodiments, when a user applies suction to the second end 140, the baffle 1142 is configured to further transform into a third configuration, such as the baffle 1142 of the first embodiment, to allow airflow between the baffle 1142 and the matrix carrier 130. In other examples, the baffle 1142 is provided with perforations, such as the baffle 342 of the third embodiment, to provide airflow into the heating chamber 108.

[0205] Definitions and Alternative Examples

[0206] As can be understood from the above description, many features of these different embodiments are interchangeable with each other. This disclosure extends to other embodiments that incorporate features from different embodiments combined in a manner not specifically mentioned. For example, any of the baffle arrangements described herein can be used with any airflow path (first embodiment and second embodiment). Similarly, the protrusion described in the eleventh embodiment can be incorporated into any of the baffle designs. The cover can have any of the other designs. In some cases, the cover can simply be a nozzle, while in others, additional baffles may be provided, for example, to improve heat and vapor retention.

[0207] The term "heater" should be understood to refer to any device for outputting sufficient thermal energy to form an aerosol from an aerosol matrix. The transfer of thermal energy from the heater to the aerosol matrix can be by conduction, convection, radiation, or any combination of these methods. As a non-limiting example, a conductive heater may directly contact and press against the aerosol matrix, or these heaters may contact a separate component that itself heats the aerosol matrix through conduction, convection, and / or radiation. Convective heating may include heating a liquid or gas that thus transfers thermal energy (directly or indirectly) to the aerosol matrix.

[0208] Radiative heating includes, but is not limited to, transferring energy to an aerosol matrix by emitting electromagnetic radiation within the ultraviolet, visible, infrared, microwave, or radio wave portions of the electromagnetic spectrum. Radiation emitted in this manner can be directly absorbed by the aerosol matrix to induce heating, or the radiation can be absorbed by another material (such as a sensory or fluorescent material) that causes the radiation to be re-emitted at different wavelengths or spectrally weighted. In some cases, the radiation can be absorbed by a material that then transfers heat to the aerosol matrix via any combination of conduction, convection, and / or radiation.

[0209] The heater can be electrically powered, combustion-driven, or driven by any other suitable means. An electrically powered heater may include resistance rail elements (optionally including an insulating package), an induction heating system (e.g., including an electromagnet and a high-frequency oscillator), etc. The heater may be arranged around the exterior of the aerosol matrix, may partially or completely penetrate into the aerosol matrix, or any combination thereof.

[0210] The term "temperature sensor" is used to describe an element capable of determining the absolute or relative temperature of a portion of an aerosol generating apparatus. This can include thermocouples, thermopile, thermistors, etc. A temperature sensor can be provided as part of another component, or it can be a separate component. In some examples, more than one temperature sensor may be provided, for example, to monitor the heating of different parts of the aerosol generating apparatus, such as to determine thermal profiles.

[0211] Referring to the embodiments described above, the aerosol matrix includes, for example, tobacco in dried or air-dried form, and in some cases, additional ingredients for flavoring or to produce a smoother or otherwise more pleasant experience. In some examples, the aerosol matrix, such as tobacco, may be treated with a vaporizing agent. The vaporizing agent can improve the generation of aerosols from the aerosol matrix. For example, the vaporizing agent may include polyols (such as glycerol) or glycols (such as propylene glycol). In some cases, the aerosol matrix may not contain tobacco or even nicotine, but may contain naturally or artificially derived ingredients for flavoring, evaporation, improving smoothness, and / or providing other pleasant effects. The aerosol matrix can be provided as a solid or paste-type material in the form of shredded, pelleted, powdered, granular, strip, or sheet form, or optionally a combination of these. Similarly, the aerosol matrix can be a liquid or a gel. In fact, some examples may include both a solid portion and a liquid / gel portion.

[0212] Therefore, aerosol generating devices can also be referred to as “heated tobacco devices,” “heated but not burning tobacco devices,” “devices for vaporizing tobacco products,” etc., which is interpreted as devices suitable for achieving these effects. The features disclosed herein also apply to devices designed to vaporize any aerosol matrix.

[0213] Embodiments of the aerosol generating apparatus are described as being arranged to receive an aerosol matrix in a pre-packaged matrix carrier. The matrix carrier can be broadly similar to a cigarette, having tubular regions with the aerosol matrix arranged in a suitable manner. Some designs may also include filters, aerosol collection areas, cooling areas, and other structures. An outer paper or other flexible planar material such as foil may also be provided, for example, to hold the aerosol matrix in place to further resemble a cigarette.

[0214] As used herein, the term "fluid" should be interpreted generally to describe non-solid materials capable of flowing, including but not limited to liquids, pastes, gels, powders, etc. "Fluidized material" should be interpreted accordingly to be a material that is inherently fluid, or a material that has been modified to behave as a fluid. Fluidization can include, but is not limited to: powdering, dissolving in a solvent, gelling, thickening, dilution, etc.

[0215] As used herein, the term "volatile" refers to a substance that can readily change from a solid or liquid state to a gaseous state. As a non-limiting example, a volatile substance can be a substance that boils at ambient pressure or has a sublimation temperature close to room temperature. Therefore, "volatilize" should be interpreted as causing (a material) to evaporate and / or disperse in a vapor.

[0216] As used herein, the term “vapor” refers to: (i) a form in which a liquid naturally transforms under sufficient heat; or (ii) liquid / water particles suspended in the atmosphere and visible as vapor / smoke clouds; or (iii) a fluid that fills space like a gas but can be liquefied by pressure alone below its critical temperature.

[0217] Consistent with this definition, the term “vaporise or vaporize” refers to: (i) the change or resulting change into vapor; and (ii) the change of a particle’s physical state (i.e., from a liquid or solid state to a gaseous state).

[0218] As used herein, the term “atomise” or “atomize” refers to: (i) turning (a substance, especially a liquid) into very small particles or droplets; and (ii) keeping the particles in the same physical state (liquid or solid) as they were before atomization.

[0219] As used herein, the term "aerosol" refers to a system of particles dispersed in air or gas, such as mist, fog, or smoke. Therefore, the term "aerosolize" or "aerosolize" refers to the formation of an aerosol and / or dispersion into an aerosol. It should be noted that the meaning of aerosol / aerosolization is consistent with each of volatilization, atomization, and vaporization as defined above. For the avoidance of ambiguity, aerosol is used consistently to describe a mist or droplets comprising atomized, volatilized, or vaporized particles. Aerosols also include mists or droplets containing any combination of atomized, volatilized, or vaporized particles.

Claims

1. An aerosol generating device (100), comprising: A heating chamber (108) having a tubular wall (114) extending about a central axis (X), an open end (110), and a base (112) extending between the open end (110) and the base (112) and defining an internal volume of the heating chamber (108), the heating chamber (108) being arranged to receive a matrix carrier (130) comprising an aerosol matrix (132) into the internal volume through the open end (110) along the central axis (X); A heater (118) extending around the heating chamber (108) to supply heat to the heating chamber (108); and A baffle (242) having a sealing surface (243) facing the opening end (110) is arranged to deform such that when the substrate carrier (130) is inserted into the heating chamber (108), the sealing surface (243) is deflected to face more towards the central axis (X) and thus towards the sidewall of the substrate carrier (130); The base (112) is closed such that air can only be drawn into the heating chamber (108) through the opening end (110) toward the aerosol matrix (132); The opening end (110) is partially blocked by a baffle (242), which defines an opening (244) for receiving the substrate carrier (130) through which it passes. The baffle (242) has a narrow portion (242a) and a wide portion (242b), the narrow portion defining the minimum size of the opening (244) and the wide portion defining the maximum size of the opening (244). In use, the narrow portion (242a) is configured to contact the substrate carrier (130) when the substrate carrier (130) is inserted into the heating chamber (108).

2. The aerosol generating device (100) as described in claim 1, wherein, The distance between the innermost part of the baffle (242) and the central axis (X) is less than the distance between the inner surface of the tubular wall (114) and the central axis (X).

3. The aerosol generating device (100) as described in claim 1, wherein, The minimum dimension of the opening (244) has a width smaller than that of the substrate carrier (130).

4. The aerosol generating apparatus (100) as described in claim 1, 2, or 3, wherein, The baffle (242) is configured to form a partial seal with the substrate carrier (130) such that, in use, the baffle (242) abuts against the substrate carrier (130) at the narrow portion (242a) to form a partial seal, but does not abut against the substrate carrier (130) at the wide portion (242b).

5. The aerosol generating device (100) as described in claim 4, wherein, The wide portion (242b) is configured to provide space between the baffle (242) and the substrate carrier (130) when the substrate carrier (130) is inserted into the heating chamber (108), so as to provide an airflow path into the heating chamber (108) between the baffle (242) and the substrate carrier (130).

6. The aerosol generating apparatus (100) as described in claim 1, 2, or 3, wherein, In use, the wide portion (242b) does not deform directly through the matrix carrier (130), but rather through tension deformation caused by the deformation of the narrow portion (242a) within the baffle (242).

7. The aerosol generating apparatus (100) as described in claim 1, 2, or 3, wherein, The baffle (242) is arranged close to the opening end (110) of the heating chamber (108).

8. The aerosol generating apparatus (100) as described in claim 1, 2, or 3, wherein, The baffle (242) is elastically deformable.

9. The aerosol generating apparatus (100) as described in claim 1, 2, or 3, wherein, The baffle (242) has at least one perforation (346) configured to allow airflow through it.

10. The aerosol generating apparatus (100) as described in claim 1, 2, or 3, wherein, The baffle (242) is arranged at least partially inside the heating chamber (108).

11. The aerosol generating apparatus (100) as claimed in claim 1, 2, or 3, wherein, The baffle (242) is located outside the heating chamber (108) and is arranged to be adjacent to or spaced apart from the opening end (110) of the heating chamber (108).

12. The aerosol generating apparatus (100) as described in claim 1, 2, or 3, wherein, The baffle (242) surrounds the central axis (X).

13. The aerosol generating apparatus (100) as described in claim 1, 2, or 3, wherein, The baffle (242) is made of a material having a first thermal conductivity, and the tubular wall (114) is made of a material having a second thermal conductivity, wherein the first thermal conductivity is less than the second thermal conductivity.

14. The aerosol generating apparatus (100) as described in claim 1, 2, or 3, wherein, The baffle (242) can be elastically transformed from a sealed configuration into an inflow configuration when the user sucks through the substrate carrier (130) to allow airflow to enter the internal volume of the heating chamber (108) between the baffle (242) and the substrate carrier (130).

15. The aerosol generating apparatus (100) as described in claim 1, 2, or 3, further comprising: Power supply (120); as well as A control circuit system (122) is configured to control the electrical power supply from the power source (120) to the heater (118).

16. The aerosol generating apparatus (100) as described in claim 1, 2, or 3, wherein, The distance between the baffle (242) and the base (112) of the heating chamber (108) is approximately equal to the length of the aerosol matrix (132) carried by the matrix carrier (130).

17. An aerosol generation system comprising an aerosol generation device (100) as described in any of the preceding claims and the matrix carrier (130).

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