Airflow guiding piece, heating assembly and atomization device

Abstract

The utility model discloses an airflow guiding piece, a heating assembly and an atomization device, and belongs to the technical field of atomization, the airflow guiding piece is provided with a central axis, the airflow guiding piece comprises a first airflow channel, a first supporting part, a concave part and a mounting part, and the airflow guiding piece is arranged around the central axis to form the first airflow channel; the concave part is connected with the first supporting part, an air outlet hole is formed in the concave part and communicates with the first airflow channel, the direction, facing the first airflow channel, of the air outlet hole is the first direction, and in the first direction, the distance from the outer surface of the concave part to the central axis is smaller than the distance from the outer surface of the first supporting part to the central axis; in the process of inserting the aerosol substrate, the first supporting part makes contact with the aerosol substrate earlier than the concave part, the aerosol substrate is supported through the first supporting part, a certain gap is kept between the aerosol substrate and the concave part, and therefore the aerosol substrate is prevented from making direct contact with the air outlet hole, and the air outlet hole is prevented from being blocked by the aerosol substrate.

Description

Technical Field

[0001] The present application relates to the field of atomization technology, and in particular to an airflow guide, a heating assembly, and an atomization device. Background Art

[0002] The atomizer produces aerosol by heating a solid aerosol matrix through a heating assembly. Traditional heating elements in heating assemblies are categorized by form as either embedded or surrounding. Embedded heating elements are inserted into the aerosol matrix to heat it. Embedded heating elements are further categorized by heating method as hot air flow heating or contact heating. Hot air flow heating elements, also known as airflow guides, have air outlets embedded in the aerosol matrix. The airflow guides have airflow channels within them, through which hot air flows and is released from the air outlets to heat the aerosol matrix.

[0003] When the heater is inserted into the aerosol matrix, the air outlet comes into direct contact with the aerosol matrix, making it easy for the air outlet to become blocked by the aerosol matrix. This affects the release of hot air and the heating of the aerosol matrix, resulting in incomplete heating of the aerosol matrix. A blocked air outlet increases the draw resistance, affecting the user experience of the atomizer device. Utility Model Content

[0004] The main purpose of the present application is to provide an airflow guide, a heating assembly and an atomizing device to solve the problem that the air outlet is easily blocked by the aerosol matrix.

[0005] The present application provides an airflow guide, which has a central axis, and the airflow guide includes: a first airflow channel, the airflow guide is arranged around the central axis to form the first airflow channel; a first support portion; a recessed portion, the recessed portion is connected to the first support portion, the recessed portion is provided with an air outlet, the air outlet is connected to the first airflow channel, and the direction of the air outlet toward the first airflow channel is a first direction, in the first direction, the distance from the outer surface of the recessed portion to the central axis is less than the distance from the outer surface of the first support portion to the central axis; and a mounting portion, the mounting portion is connected to an end of the recessed portion away from the first support portion, the mounting portion is arranged around the central axis to form a first mounting space, and the first mounting space is connected to the first airflow channel.

[0006] In some other embodiments, the aperture of the air outlet gradually decreases along the first direction.

[0007] In some other embodiments, a second support portion is further included, which is arranged between the recessed portion and the mounting portion. In the first direction, the distance from the outer surface of the recessed portion to the central axis is smaller than the distance from the outer surface of the second support portion to the central axis.

[0008] In some other embodiments, a plurality of supporting protrusions are provided on the side of the recessed portion facing away from the first air flow channel, and the plurality of supporting protrusions are spaced apart along the circumference of the recessed portion. There are a plurality of air outlet holes, and the supporting protrusions are spaced apart from the air outlet holes.

[0009] In some other embodiments, the airflow guide also includes a guide portion, which is connected to an end of the first support portion away from the recessed portion, and the direction of the recessed portion toward the first support portion is a second direction. Along the second direction, the distance from the outer surface of the guide portion to the center axis gradually decreases.

[0010] The present application also provides a heating component, including: the above-mentioned airflow guide; a heat exchange component, the heat exchange component is accommodated in the first installation space, the heat exchange component is provided with a plurality of second airflow channels, the second airflow channels are connected to the first installation space, and the gas in the second airflow channels flows through the first installation space, the first airflow channel and the air outlet; and a heating component, the heating component is accommodated in the first installation space, and the heating component is used to heat the gas in the second airflow channel.

[0011] In some other embodiments, it also includes: a shell, which is arranged around the central axis to form a receiving cavity, and the two ends of the shell have a first opening and a second opening respectively; a first receiving seat, the first receiving seat is arranged at the second opening, and the first receiving seat is provided with a second air inlet; an extraction member, the extraction member is arranged at the first opening, and the extraction member is provided with a first air inlet; and a third air flow channel, the third air flow channel is arranged between the first air inlet and the second air inlet, and the gas passes through the first air inlet, the third air flow channel and the second air inlet and enters the second air flow channel; wherein, the air flow guide is accommodated in the receiving cavity, and the third air flow channel is arranged between the mounting portion and the shell, so that the heating member heats the gas in the third air flow channel.

[0012] In some other embodiments, the third air flow channel includes a first sub-air channel and a second sub-air channel, the first receiving seat includes a first peripheral wall, the first peripheral wall is arranged around the central axis to form a second installation space, the second air inlet is arranged on the first peripheral wall, and the first peripheral wall is spaced from the outer shell to form the second sub-air channel; the extraction member includes an extension portion, the extension portion is accommodated in the receiving cavity, the extension portion is provided with the first air inlet, and the extension portion is spaced from the outer shell to form the first sub-air channel; wherein the gas flows through the first air inlet, the first sub-air channel, the second sub-air channel, the second air inlet and the second installation space and enters the second air flow channel.

[0013] In some other embodiments, the third airflow channel also includes a third sub-air channel, and the heating component also includes a second receiving seat, which is received in the receiving cavity, and the second receiving seat includes: a connecting portion, which is arranged along the circumference of the outer shell and extends toward the receiving cavity, and the connecting portion is provided with a second through hole; and a second circumferential wall, which is arranged along the edge of the second through hole and extends toward the second opening, and the second circumferential wall is spaced from the outer shell to form a third sub-air channel; wherein the connecting portion is provided with a third air inlet hole, and the third air inlet hole connects the first sub-air channel and the third sub-air channel, so that the gas flows through the first sub-air channel, the third air inlet hole and the third sub-air channel and enters the second sub-air channel.

[0014] In some other embodiments, the second receiving seat also includes a second bottom wall, which is arranged at an end of the second peripheral wall away from the connecting portion, and the second bottom wall and the second peripheral wall form a third installation space, and the third installation space is used to accommodate the aerosol matrix. The second bottom wall is provided with a third through hole, and the third through hole is used for the airflow guide to pass through, so that the airflow guide can be inserted into the aerosol matrix.

[0015] In some other embodiments, the end of the mounting portion away from the recessed portion is embedded in the second mounting space, the mounting portion abuts against the first peripheral wall, the inner diameter of the portion of the first peripheral wall close to the mounting portion is smaller than the inner diameter of the portion of the first peripheral wall away from the mounting portion to form a first step, and the first step abuts against the end of the mounting portion away from the recessed portion to support the airflow guide.

[0016] The present application also provides an atomization device, comprising a power supply and the above-mentioned heating component, wherein the power supply is electrically connected to the heating component to provide electrical energy to the heating component.

[0017] The utility model arranges the air outlet in the recessed portion. In the first direction, the distance from the outer surface of the recessed portion to the central axis is smaller than the distance from the outer surface of the first support portion to the central axis, and the first support portion is connected to the end of the recessed portion away from the mounting portion. During the insertion of the aerosol matrix, the first support portion contacts the aerosol matrix before the recessed portion. The aerosol matrix is ​​supported by the first support portion so that a certain gap is maintained between the aerosol matrix and the recessed portion, thereby avoiding direct contact between the aerosol matrix and the air outlet, thereby preventing the aerosol matrix from clogging the air outlet. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0019] Figure 1 This is a perspective view of the aerosol matrix inserted into the atomization device disclosed in this application.

[0020] Figure 2 for Figure 1 Cross-section along AA` direction.

[0021] Figure 3 for Figure 2 Remove the cross-section of the aerosol matrix.

[0022] Figure 4 This is an exploded view of the heating assembly disclosed in this application.

[0023] Figure 5 4 is a cross-sectional view of the airflow guide of Example 1 along the AA′ direction.

[0024] Figure 6 This is a cross-sectional view of the airflow guide of Example 2 along the AA' direction.

[0025] Figure 7 This is a cross-sectional view of the housing disclosed in this application along the AA' direction.

[0026] Figure 8 for Figure 6 Cross-section view of the assembled extractor.

[0027] Figure 9 This is a cross-sectional view of the first receiving seat disclosed in this application along the AA' direction. DETAILED DESCRIPTION

[0028] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0029] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0030] Unless otherwise specifically stated, the relative arrangement of the parts and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to actual proportional relationships. The techniques, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific values ​​should be interpreted as being merely exemplary, not as limitations. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0031] See Figures 1 to 3 As shown, the embodiment of the present invention further provides an atomization device 100 , including a power supply 30 and the aforementioned heating component 10 . The power supply 30 is electrically connected to the heating component 10 to provide electrical energy to the heating component 10 , and the heating component 10 heats the aerosol matrix 200 .

[0032] See Figures 2 to 5 As shown, an embodiment of the present invention proposes an air flow guide, the air flow guide 11 has a central axis, the air flow guide 11 includes: a first air flow channel 117, a first support portion 112, a recessed portion 113 and a mounting portion 115, the air flow guide 11 is arranged around the central axis to form the first air flow channel 117; the recessed portion 113 is connected to the first support portion 112, and the recessed portion 113 is provided with an air outlet 116, which is connected to the first air flow channel 117, and the direction of the air outlet 116 toward the first air flow channel 117 is a first direction. In the first direction, the distance from the outer surface of the recessed portion 113 to the central axis is less than the distance from the outer surface of the first support portion 112 to the central axis; the mounting portion 115 is connected to one end of the recessed portion 113 away from the first support portion 112, and the mounting portion 115 is arranged around the central axis to form a first installation space 118, which is connected to the first air flow channel 117.

[0033] Specifically, a guiding slope is provided at one end of the recessed portion 113 close to the first supporting portion 112. Along the direction from the first supporting portion 112 toward the recessed portion 113, the distance from the outer surface of the recessed portion 113 to the central axis gradually decreases to form the guiding slope. When the aerosol matrix 200 passes over the recessed portion 113, if the aerosol matrix 200 collapses, the guiding slope supports the aerosol matrix 200 to prevent the aerosol matrix 200 from further collapsing.

[0034] In some embodiments, the aperture of the air outlet 116 gradually decreases along the first direction. When the aerosol matrix 200 passes over the recessed portion 113, if the aerosol matrix 200 collapses, the aerosol matrix 200 abuts the recessed portion 113. The edges of the air outlet 116 away from the first airflow channel 117 support the aerosol matrix 200, allowing the aerosol matrix 200 to be fully heated, ensuring consistent draw resistance during use.

[0035] See Figure 6 As shown, the airflow guide 11 further includes a second support portion 114 disposed between the recessed portion 113 and the mounting portion 115. In a first direction, the distance from the outer surface of the recessed portion 113 to the central axis is less than the distance from the outer surface of the second support portion 114 to the central axis. When the airflow guide 11 is inserted with the aerosol substrate 200, the aerosol substrate 200 passes over the recessed portion 113 and contacts the second support portion 114 located below the air outlet 116. This supports the aerosol substrate 200 and prevents it from collapsing when passing over the recessed portion 113. This ensures a gap between the aerosol substrate 200 and the recessed portion 113, i.e., between the aerosol substrate 200 and the air outlet 116. This further prevents the aerosol substrate 200 from clogging the air outlet 116, allowing the aerosol substrate 200 to be fully heated and ensuring consistent draw resistance during use.

[0036] Specifically, a guiding slope is provided at one end of the recessed portion 113 close to the second supporting portion 114. Along the direction from the second supporting portion 114 toward the recessed portion 113, the distance from the outer surface of the recessed portion 113 to the central axis gradually decreases to form the guiding slope. When the aerosol matrix 200 passes over the recessed portion 113, if the aerosol matrix 200 collapses, the guiding slope supports the aerosol matrix 200 to prevent the aerosol matrix 200 from further collapsing.

[0037] See Figure 6As shown, a plurality of support protrusions 1131 are provided on a side of the recessed portion 113 facing away from the first airflow channel 117. The plurality of support protrusions 1131 are spaced apart along the circumference of the recessed portion 113. There are multiple air outlet holes 116, and the support protrusions 1131 are spaced apart from the air outlet holes 116. When the aerosol substrate 200 passes over the recessed portion 113, it contacts the support protrusions 1131 located on the left and right sides of the air outlet holes 116 to support the aerosol substrate 200 and prevent it from collapsing when passing over the recessed portion 113. This ensures that there is a gap between the aerosol substrate 200 and the recessed portion 113, that is, between the aerosol substrate 200 and the air outlet holes 116. This further prevents the aerosol substrate 200 from clogging the air outlet holes 116, allowing the aerosol substrate 200 to be fully heated, thereby ensuring consistent draw resistance during use.

[0038] In some embodiments, the support protrusion 1131 extends toward the first support portion 112 and is connected to the first support portion 112 . The support protrusion 1131 extends toward the second support portion 114 and is connected to the second support portion 114 .

[0039] See Figures 2 to 6 As shown, the airflow guide 11 also includes a guide portion 111, which is connected to one end of the first support portion 112 away from the recessed portion 113. The direction of the recessed portion 113 toward the first support portion 112 is the second direction L2. The second direction L2 is in the same direction as the central axis of the airflow guide 11. Along the second direction L2, the distance from the outer surface of the guide portion 111 to the central axis gradually decreases. The setting of the guide section 111 facilitates the insertion of the airflow guide 11 into the aerosol matrix 200.

[0040] See Figures 2 to 4 As shown, the embodiment of the present invention also proposes a heating component 10, including: the aforementioned air flow guide 11, the heat exchange component 12 and the heating component 13, the heat exchange component 12, the heat exchange component 12 is accommodated in the first installation space 118, the heat exchange component 12 is provided with a plurality of second air flow channels 121, the second air flow channels 121 are connected to the first installation space 118, the gas in the second air flow channels 121 flows through the first installation space 118, the first air flow channel 117 and the air outlet 116; the heating component 13 is accommodated in the first installation space 118, and the heating component 13 is used to heat the gas in the second air flow channel 121.

[0041] Specifically, the heating element 13 is disposed around the central axis and surrounds the heat exchange element 12 . The heating element 13 is used to heat the heat exchange element 12 to heat the gas in the second air flow channel 121 .

[0042] More specifically, ceramic glue is used to connect the heat exchange element 12 and the heating element 13 to seal the gap between them, and ceramic glue is used to connect the heat exchange element 12 and the mounting portion 115 to seal the gap between them.

[0043] See Figures 2 to 9 As shown, the heating assembly 10 further includes: a shell 15, a first receiving seat 16, an extraction member 18 and a third air flow channel 20. The shell 15 is arranged around the central axis to form a receiving cavity 153. The two ends of the shell 15 respectively have a first opening 151 and a second opening 152; the first receiving seat 16 is arranged at the second opening 152, and the first receiving seat 16 is provided with a second air inlet 161; the extraction member 18 is arranged at the first opening 151, and the extraction member 18 is provided with a first air inlet 1811; the third air flow channel 20 is provided Between the first air inlet hole 1811 and the second air inlet hole 161, the gas passes through the first air inlet hole 1811, the third air flow channel 20 and the second air inlet hole 161 and enters the second air flow channel 121; wherein, the air flow guide 11 is accommodated in the accommodating cavity 153, and the third air flow channel 20 is arranged between the mounting portion 115 and the outer shell 15, so that the heating element 13 heats the gas in the third air flow channel 20, so that when the heated gas heats the aerosol matrix 200, the aerosol matrix 200 can be heated more fully.

[0044] See Figures 2 to 9 As shown, the third air flow channel 20 includes a first sub-air channel 21 and a second sub-air channel 22. The first receiving seat 16 includes a first peripheral wall 162. The first peripheral wall 162 is arranged around the central axis to form a second installation space 164. The second air inlet 161 is provided on the first peripheral wall 162. The first peripheral wall 162 is spaced apart from the housing 15 to form the second sub-air channel 22.

[0045] Specifically, the first receiving seat 16 includes a first peripheral wall 162 and a first bottom wall 163. The first bottom wall 163 is arranged at the second opening 152. The first peripheral wall 162 is arranged on the side of the first bottom wall 163 close to the receiving cavity 153. The first peripheral wall 162 extends toward the receiving cavity 153. The first peripheral wall 162 and the first bottom wall 163 are constructed to form a second installation space 164. The first peripheral wall 162 is provided with a second air inlet hole 161. The second air inlet hole 161 is connected to the second installation space 164. The first peripheral wall 162 is separated from the outer shell 15 to form a second sub-air duct 22. The second air inlet hole 161 is connected to the second sub-air duct 22.

[0046] More specifically, one end of the mounting portion 115 away from the recessed portion 113 is embedded in the second mounting space 164, and the mounting portion 115 abuts against the first peripheral wall 162. The inner diameter of the portion of the first peripheral wall 162 close to the mounting portion 115 is smaller than the inner diameter of the portion of the first peripheral wall 162 away from the mounting portion 115 to form a first step 1621. The first step 1621 abuts against one end of the mounting portion 115 away from the recessed portion 113 to support the airflow guide 11 so as to facilitate the insertion of the airflow guide 11 into the aerosol matrix 200.

[0047] The extraction member 18 includes an extension portion 181, which is accommodated in the accommodating cavity 153. The extension portion 181 is provided with a first air inlet hole 1811. The extension portion 181 is spaced from the outer shell 15 to form a first sub-air channel 21; specifically, the extraction member 18 includes a limiting portion 182 and an extension portion 181. The limiting portion 182 is arranged at the first opening 151, and the limiting portion 182 abuts against one end of the outer shell 15. The limiting portion 182 is provided with a first through hole 1821, and the first through hole 1821 is connected to the accommodating cavity 153. The extension portion 181 is arranged along the edge of the first through hole 1821, and the extension portion 181 extends toward the accommodating cavity 153. The extension portion 181 is provided with a first air inlet hole 1811. The extension portion 181 is spaced from the outer shell 15 to form a first sub-air channel 21, and the first sub-air channel 21 is connected to the first air inlet hole 1811 and the second sub-air channel 22. In addition, the extension portion 181 is disposed around the central axis to form a receiving space 183 , and the receiving space 183 is used to receive the sol matrix.

[0048] The gas flows through the first air inlet hole 1811 , the first sub-air channel 21 , the second sub-air channel 22 , the second air inlet hole 161 and the second installation space 164 and enters the second air flow channel 121 , so that the gas is heated.

[0049] See Figures 2 to 9 As shown, the third air flow channel 20 also includes a third sub-air channel 23, and the heating component 10 also includes a second receiving seat 17. The second receiving seat 17 is received in the receiving cavity 153, and the second receiving seat 17 includes: a connecting portion 173 and a second circumferential wall 171. The connecting portion 173 is arranged along the circumference of the outer shell 15 and extends toward the receiving cavity 153. The connecting portion 173 is provided with a second through hole 1731; the second circumferential wall 171 is arranged along the edge of the second through hole 1731 and extends toward the second opening 152. The second circumferential wall 171 is spaced from the outer shell 15 to form a third sub-air channel 23; in addition, the connecting portion 173 is provided with a third air inlet hole 175, and the third air inlet hole 175 connects the first sub-air channel 21 and the third sub-air channel 23, so that the gas flows through the first sub-air channel 21, the third air inlet hole 175 and the third sub-air channel 23 and enters the second sub-air channel 22.

[0050] Specifically, the second receiving seat 17 also includes a second bottom wall 172, which is arranged at one end of the second peripheral wall 171 away from the connecting portion 173. The second bottom wall 172 and the second peripheral wall 171 form a third installation space 174. The third installation space 174 is used to accommodate the aerosol matrix 200. The second bottom wall 172 is provided with a third through hole 176. The third through hole 176 is used for the airflow guide 11 to pass through, so that the airflow guide 11 can be inserted into the aerosol matrix 200.

[0051] See Figure 2 and Figure 3 As shown, when the aerosol substrate 200 is inserted into the atomizing device 100 , the aerosol substrate 200 passes through the first through hole 1821 to be accommodated in the accommodation space 183 and the third installation space 174 . During the process of using the heating component 10 to heat the aerosol matrix 200, the gas flows through the first air inlet 1811, the first sub-air channel 21, the third air inlet 175, the third sub-air channel 23, the second sub-air channel 22, the second air inlet 161 and the second installation space 164 in sequence and enters the second air flow channel 121. When the gas flows through the third air flow channel 20, that is, when it flows through the first sub-air channel 21, the third air inlet 175, the third sub-air channel 23 and the second sub-air channel 22, the gas is heated by the heat dissipated by the heating element 13 through the installation section 113, and is further heated in the second air flow channel 121. The heated gas flows through the first installation space 118, the air inlet, the first air flow channel 117 and the air outlet 116 to heat the aerosol matrix 200 accommodated in the accommodation space 183 and the third installation space 174.

[0052] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0053] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0054] The above are merely preferred embodiments of the present application and are not intended to limit the present application. Persons skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. An airflow guide, characterized in that: The airflow guide (11) has a central axis, and the airflow guide (11) comprises: a first airflow channel (117), wherein the airflow guide (11) is arranged around the central axis to form the first airflow channel (117); a first supporting portion (112); a recessed portion (113), the recessed portion (113) being connected to the first supporting portion (112), the recessed portion (113) being provided with an air outlet (116), the air outlet (116) being in communication with the first air flow channel (117), the direction of the air outlet (116) toward the first air flow channel (117) being a first direction, and in the first direction, a distance from an outer surface of the recessed portion (113) to the central axis is smaller than a distance from an outer surface of the first supporting portion (112) to the central axis; and A mounting portion (115), the mounting portion (115) being connected to an end of the recessed portion (113) away from the first supporting portion (112), the mounting portion (115) being arranged around the central axis to form a first mounting space (118), the first mounting space (118) being connected to the first airflow channel (117).

2. The airflow guide according to claim 1, wherein: The aperture of the air outlet hole (116) gradually decreases along the first direction.

3. The airflow guide according to claim 1, wherein: The invention also includes a second supporting portion (114), wherein the second supporting portion (114) is arranged between the recessed portion (113) and the mounting portion (115), and in the first direction, the distance from the outer surface of the recessed portion (113) to the central axis is smaller than the distance from the outer surface of the second supporting portion (114) to the central axis.

4. The airflow guide according to claim 1, wherein: A plurality of supporting protrusions (1131) are provided on a side of the recessed portion (113) facing away from the first air flow channel (117), and the plurality of supporting protrusions (1131) are arranged at intervals along the circumference of the recessed portion (113). There are a plurality of air outlet holes (116), and the supporting protrusions (1131) are arranged at intervals from the air outlet holes (116).

5. The airflow guide according to claim 1, wherein: The airflow guide (11) further comprises a guide portion (111), wherein the guide portion (111) is connected to an end of the first support portion (112) away from the recessed portion (113), and the direction of the recessed portion (113) toward the first support portion (112) is a second direction. Along the second direction, the distance from the outer surface of the guide portion (111) to the central axis gradually decreases.

6. A heating assembly, characterized in that: include: The airflow guide (11) according to any one of claims 1 to 5; a heat exchange element (12), the heat exchange element (12) being accommodated in the first installation space (118), the heat exchange element (12) being provided with a plurality of second air flow channels (121), the second air flow channels (121) being connected to the first installation space (118), the gas in the second air flow channels (121) flowing through the first installation space (118), the first air flow channel (117) and the air outlet (116); and A heating element (13), the heating element (13) is accommodated in the first installation space (118), and the heating element (13) is used to heat the gas in the second air flow channel (121).

7. The heating assembly according to claim 6, wherein: Also includes: A housing (15), the housing (15) being arranged around the central axis to form a receiving cavity (153), and the two ends of the housing (15) respectively having a first opening (151) and a second opening (152); a first receiving seat (16), the first receiving seat (16) being disposed at the second opening (152), and the first receiving seat (16) being provided with a second air inlet hole (161); an extraction member (18), the extraction member (18) being disposed at the first opening (151), the extraction member (18) being provided with a first air inlet (1811); and a third air flow channel (20), the third air flow channel (20) being arranged between the first air inlet hole (1811) and the second air inlet hole (161), wherein air passes through the first air inlet hole (1811), the third air flow channel (20) and the second air inlet hole (161) and enters the second air flow channel (121); The airflow guide (11) is accommodated in the accommodation cavity (153), and the third airflow channel (20) is arranged between the mounting portion (115) and the housing (15), so that the heating element (13) heats the gas in the third airflow channel (20).

8. The heating assembly according to claim 7, wherein: The third air flow channel (20) includes a first sub-air channel (21) and a second sub-air channel (22); the first receiving seat (16) includes a first peripheral wall (162); the first peripheral wall (162) is arranged around the central axis to form a second installation space (164); the second air inlet hole (161) is arranged on the first peripheral wall (162); the first peripheral wall (162) and the shell (15) are spaced apart to form the second sub-air channel (22); the extraction member (18) includes an extension portion (181); the extension portion (181) is received in the receiving cavity (153); the extension portion (181) is provided with the first air inlet hole (1811); the extension portion (181) and the shell (15) are spaced apart to form the first sub-air channel (21); The gas flows through the first air inlet (1811), the first sub-air channel (21), the second sub-air channel (22), the second air inlet (161) and the second installation space (164) and enters the second air flow channel (121).

9. The heating assembly according to claim 8, wherein: The third air flow channel (20) further includes a third sub-air channel (23), and the heating component (10) further includes a second receiving seat (17), the second receiving seat (17) being received in the receiving cavity (153), and the second receiving seat (17) includes: a connecting portion (173), the connecting portion (173) being arranged along the circumference of the housing (15) and extending toward the receiving cavity (153), the connecting portion (173) being provided with a second through hole (1731); and a second peripheral wall (171), the second peripheral wall (171) being arranged along the edge of the second through hole (1731) and extending toward the second opening (152), the second peripheral wall (171) being spaced apart from the housing (15) to form a third sub-airway (23); The connecting portion (173) is provided with a third air inlet hole (175), and the third air inlet hole (175) is connected to the first sub-air channel (21) and the third sub-air channel (23), so that the gas flows through the first sub-air channel (21), the third air inlet hole (175) and the third sub-air channel (23) and enters the second sub-air channel (22).

10. The heating assembly according to claim 9, wherein: The second receiving seat (17) further comprises a second bottom wall (172), the second bottom wall (172) being arranged at one end of the second peripheral wall (171) away from the connecting portion (173), the second bottom wall (172) and the second peripheral wall (171) forming a third installation space (174), the third installation space (174) being used to accommodate the aerosol matrix (200), the second bottom wall (172) being provided with a third through hole (176), the third through hole (176) being used for allowing the airflow guide (11) to pass through, so that the airflow guide (11) can be inserted into the aerosol matrix (200).

11. The heating assembly according to claim 8, wherein: One end of the mounting portion (115) away from the recessed portion (113) is embedded in the second mounting space (164), and the mounting portion (115) abuts against the first peripheral wall (162). The inner diameter of the portion of the first peripheral wall (162) close to the mounting portion (115) is smaller than the inner diameter of the portion of the first peripheral wall (162) away from the mounting portion (115), so as to form a first step (1621). The first step (1621) abuts against one end of the mounting portion (115) away from the recessed portion (113) to support the airflow guide (11).

12. An atomizing device, characterized in that: The heating device comprises a power source (30) and the heating component (10) according to any one of claims 6 to 11, wherein the power source (30) is electrically connected to the heating component (10) to provide electrical energy to the heating component (10).

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