Heat generating assembly and heat-not-burn device

Abstract

The application provides a heating assembly and a heat-not-burn device, and belongs to the heat-not-burn device field. The heating assembly comprises an air channel structure, a heating core and a base. The air channel structure is in a cylindrical shape. One end of the air channel structure is provided with a socket. The base is connected to the other end of the air channel structure. A first cavity is formed between the base and the air channel structure. The heating core is located in the air channel structure. An airflow channel is formed in the heating assembly. An inlet of the airflow channel is in communication with the socket. The outlet of the airflow channel is in communication with the heating core. The ratio of the flow area of the inlet to the flow area of the outlet is 0.9-1. The pressure drop generated at the inlet is small, and the pressure drop generated at the outlet is large. Since a large pressure drop can be generated at the outlet, the change in air pressure in the first cavity can ensure that the airflow sensor for detecting the pressure change can be triggered smoothly when smoking and stopping smoking, so that the number of smoking times can be recorded more accurately.

Description

Technical Field

[0001] This application relates to the field of heating non-combustible devices, and particularly to a heating element and a heating non-combustible device. Background Technology

[0002] Heat-not-burn (HNB) devices are products that use the thermal effect of a heating element to heat an aerosol-generating medium inserted therein, so that the aerosol-generating medium generates aerosols without combustion.

[0003] When a user aspirates the aerosol generating medium inserted into the heated non-combustible device, it causes pressure changes inside the device. For example, during aspiration, the pressure at the end of the aerosol generating medium inserted into the device decreases, and when aspiration stops, the pressure returns to normal. Based on these pressure changes, such as the number of times the pressure drops and recovers, the number of times the user aspirates can be determined.

[0004] It has been found that when using aerosol generating media with high suction resistance, the recorded number of suction times in the related technology's heated non-combustible devices deviates significantly from the actual number of suction times. Utility Model Content

[0005] This application provides a heating element and a heating-non-combustible device, which facilitates more accurate recording of the number of suctions. The technical solution is as follows: In a first aspect, embodiments of this application provide a heating component, which includes an air duct structure, a heating core, and a base. The air duct structure is cylindrical, with an insertion port at one end. The base is connected to the other end of the air duct structure, and a first cavity is formed between the base and the air duct structure. The heating core is located in the air duct structure, with one end facing the insertion port and the other end facing the base. An airflow channel is formed in the heating component. The inlet of the airflow channel is connected to the socket. The first cavity is connected to the outlet of the airflow channel and the heating core. The ratio of the flow cross-sectional area of ​​the inlet to the flow cross-sectional area of ​​the outlet is 0.9 to 1.

[0006] In some examples, the airway structure includes a tube body comprising a connector section, a receiving section, and a connecting portion. The connector section is coaxially connected to one end of the receiving section and is used to connect an aerosol generating medium. The heating element is located in the receiving section. A first gap is formed between the inner wall of the receiving section and the outer wall of the heating element. The inlet is located on the inner wall of the connector section. The connecting portion is located on the outer wall of the connector section and has a connecting channel formed therein. One end of the connecting channel is connected to the inlet, and the other end of the connecting channel is connected to the first gap. The connecting channel and the first gap form the airflow channel.

[0007] In some examples, the airway structure further includes a first limiting ring, which is detachably connected to the end of the insertion segment away from the receiving segment. The end face of the insertion segment away from the receiving segment is provided with a first notch, which, together with the first limiting ring, forms the inlet.

[0008] In some examples, a first outer flange is provided on the outer wall of the plug segment, and a convex ring is provided on the side of the first outer flange away from the receiving segment. A second gap is formed between the convex ring and the outer wall of the plug segment, and the second gap connects the inlet and the connecting channel.

[0009] In some examples, the inner sidewall of the first limiting ring has a plurality of first protrusions that are spaced apart circumferentially along the first limiting ring, and the first notch is located between two adjacent first protrusions.

[0010] In some examples, the outer diameter of the plug segment is smaller than the inner diameter of the receiving segment, and the receiving segment has an inner flange connected to one end near the plug segment; the inner flange is connected to the plug segment. The end of the heating element near the socket abuts against the inner flange. The inner flange is provided with a plurality of limiting protrusions on the side near the base, and the plurality of limiting protrusions are distributed around the heating element.

[0011] In some examples, the airway structure further includes a support base, which is at least partially inserted into the receiving section, and the support base abuts against both the support base and the heating element; The outer wall of the support is provided with a second outer flange, which is sealed to the inner wall of the tube. The edge of the second outer flange has a second notch, which together with the inner wall of the tube forms the outlet.

[0012] In some examples, a positioning protrusion is connected to the outer peripheral wall of the second outer flange, and a positioning groove is provided on the end face of the tube body near the base, with the positioning protrusion located in the positioning groove.

[0013] In some examples, the base has a first slot into which the tube is inserted; the side wall of the first slot has an annular stop, and the annular stop has a support block on the side near the tube, and the alignment protrusion is supported on the support block.

[0014] In some examples, the bottom of the first slot has a first through hole, in which an elastic membrane is disposed; the end face of the support opposite to the elastic membrane has a plurality of second through holes, the second through holes connecting the first cavity and the heating core; the end face of the support opposite to the elastic membrane is also connected to a plurality of second protrusions.

[0015] In some examples, the second outer flange also has a wiring hole, and the base is also provided with a wiring channel, one end of which is connected to the first cavity, and the other end of which extends to the outer surface of the base; the lead wire of the heating core passes through the wiring hole and the wiring channel; the wiring hole and the wiring channel are filled with sealant.

[0016] In some examples, the airway structure further includes a reflective membrane disposed on at least a portion of the inner wall of the airway structure.

[0017] Secondly, embodiments of this application also provide a heating non-combustible device, the heating non-combustible device including a power supply component and a heating component as described in the first aspect, the power supply component being used to supply power to the heating component.

[0018] The beneficial effects of the technical solutions provided in this application include at least the following: A base is installed at the end of the airway structure furthest from the inlet, and the heating element is placed within the airway structure. The inlet of the airflow channel in the heating element is connected to the inlet. The first cavity between the base and the airway structure connects the outlet of the airflow channel and the heating element. During suction, a negative pressure is created within the heating element, reducing the pressure in the first cavity. Air enters the airflow channel through the inlet at the inlet and then reaches the first cavity through the outlet of the airflow channel. By setting the ratio of the inlet to the outlet cross-sectional area to 0.9~1, the pressure drop at the inlet is small, while the pressure drop at the outlet is large. Because a large pressure drop can be generated at the outlet, the pressure change in the first cavity during suction and cessation ensures that the airflow sensor detecting pressure changes can be successfully triggered, thus facilitating more accurate recording of the number of suctions. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of a heating non-combustible device provided in an embodiment of this application; Figure 2 This is a simplified structural diagram of a heating component provided in an embodiment of this application; Figure 3 This is a simulation diagram of the air pressure during the suction of a heating element; Figure 4 This is a schematic diagram of the structure of a heating component provided in an embodiment of this application; Figure 5 This is a schematic diagram of the internal structure of a heating component provided in an embodiment of this application; Figure 6 This is a schematic diagram of the internal structure of a heating component provided in an embodiment of this application; Figure 7 This is a simulation diagram of the air pressure during the suction of a heating element; Figure 8 This is a schematic diagram of the structure of a tube provided in an embodiment of this application; Figure 9 This is a schematic diagram of the assembly of a first limiting ring and a tube body provided in an embodiment of this application; Figure 10 This is a schematic diagram of the structure of a tube provided in an embodiment of this application; Figure 11 This is a schematic diagram of the structure of a support base provided in an embodiment of this application; Figure 12 This is a schematic diagram of the structure of a base provided in an embodiment of this application.

[0021] Icon labels: 01-Aerosol generating medium; 10-Power supply assembly; 11-Housing; 11a-Socket; 12-Battery; 20-Heating component; 20a-Socket; 20b-Airflow channel; 20c-Detection chamber; 201-Inlet; 202-Outlet; 203-Airflow sensor; 21-Airway structure; 211-Tube body; 211a-Alignment groove; 2111-Plug-in section; 2111a-First notch; 2111b-Second gap; 21111-First outer flange; 21112-Protruding ring; 2112-Receiving section; 2112a-First gap; 21121-Inner flange; 21122-Limiting protrusion; 2113-Connecting part; 2114-Positioning protrusion; 212-First limiting ring; 212a-Annular groove; 212b-Positioning hole; 2121 213-First protrusion; 213-Support base; 2131-Second outer flange; 213a-Second through hole; 2131a-Second notch; 2131b-Wire hole; 21311-Alignment protrusion; 2132-Second protrusion; 22-Heating core; 221-Tubular substrate; 222-Heating element; 223-Lead wire; 23-Base; 23a-First cavity; 23b-First slot; 23c-Annular stop; 23d-First through hole; 231-Elastic membrane; 232-Support block; 24-Connector; 25-Reflective membrane. Detailed Implementation

[0022] In the following description, specific details such as particular system architectures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of this application. However, those skilled in the art will understand that this application may also be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods have been omitted so as not to obscure the description of this application with unnecessary detail.

[0023] It should also be understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0024] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0025] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0026] Furthermore, in the description of this application and the appended claims, the terms "first," "second," "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0027] References to "one embodiment" or "some embodiments" in this specification mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized. "A plurality" means two or more.

[0028] Figure 1 This is a schematic diagram of the structure of a heating non-combustible device provided in an embodiment of this application, as shown below. Figure 1 As shown, the heated non-combustible device includes a power supply component 10 and a heating component 20. The power supply component 10 has a socket 11a, and the heating component 20 is installed in the power supply component 10. The heating component 20 has a socket 20a, which is arranged opposite to the socket 11a.

[0029] The power supply assembly 10 may include a housing 11 and a battery 12, with both the heating element 20 and the battery 12 located within the housing 11. A socket 11a is provided on the housing 11.

[0030] When using the heated non-combustible device, one end of the aerosol generating medium 01 is inserted into the heating element 20 through the socket 11a and the inlet 20a, and the heating element 20 is used to heat the aerosol generating medium 01.

[0031] Figure 2 This is a simplified structural diagram of a heating component provided in an embodiment of this application, as shown below. Figure 2As shown, an elastic membrane 231 and a detection chamber 20c are provided at the end of the heating element 20 away from the socket 20a. An airflow channel 20b is formed inside the heating element 20, with its inlet 201 located at the socket 20a and communicating with it. The outlet 202 of the airflow channel 20b is located near the end of the aerosol generating medium 01, on the side of the elastic membrane 231 closest to the socket 20a.

[0032] During suction, air flows from the airflow channel 20b into the aerosol generating medium 01. During suction, a negative pressure is created inside the aerosol generating medium 01, reducing the air pressure near the outlet 202. Air then enters the airflow channel 20b from the inlet 201 and flows towards the outlet 202. When suction stops, the air pressure near the outlet 202 returns to normal. This pressure change near the outlet 202 causes the elastic membrane 231 to deform. When the air pressure near the outlet 202 decreases, the elastic membrane 231 deforms towards the insertion port 20a, reducing the air pressure in the detection chamber 20c. When the air pressure near the outlet 202 returns to normal, the elastic membrane 231 recovers under its own elasticity, restoring the air pressure in the detection chamber 20c.

[0033] The air pressure change in the detection chamber 20c is detected by the airflow sensor 203. The number of times the air pressure decreases and then recovers can be used to determine the number of times the user draws air. The airflow sensor 203 is usually triggered only under a sufficiently large pressure drop, which places certain requirements on the pressure drop at the outlet 202.

[0034] The absorption resistance varies depending on the length of the aerosol generating medium 01. For ordinary aerosol generating media 01, the absorption resistance is typically between 100 Pa and 400 Pa. For longer aerosol generating media 01, the absorption resistance can reach over 800 Pa.

[0035] Figure 3 This is a schematic diagram simulating the air pressure during the suction of a heating element. The inlet 201 of the airflow channel 20b of the simulated heating element 20 has a flow cross-sectional area of ​​1.7093 mm². 2 The flow cross-sectional area of ​​outlet 202 is 2.2 mm². 2 The flow cross-sectional area refers to the cross-sectional area perpendicular to the direction of fluid flow. The flow cross-sectional area of ​​inlet 201 is the cross-sectional area perpendicular to the direction of fluid flow at inlet 201; the flow cross-sectional area of ​​outlet 202 is the cross-sectional area perpendicular to the direction of fluid flow at outlet 202.

[0036] like Figure 3 As shown, during suction, the pressure drop mainly occurs at the inlet 201 and outlet 202 of the airflow channel 20b, with inlet 201 being... Figure 3 At point A in the diagram, exit 202 is... Figure 3Point B in the diagram shows the pressure drop at inlet 201, which is 205 Pa, and the pressure drop at outlet 202, which is 70 Pa. The majority of the pressure drop occurs at inlet 201, accounting for approximately 74.5% of the total pressure drop at both inlet 201 and outlet 202. This percentage affects the recovery of the elastic membrane 231.

[0037] For a typical aerosol generating medium 01, the suction resistance is low. Even if the main pressure drop occurs at the inlet 201, the air pressure between the elastic membrane 231 and the aerosol generating medium 01 has enough time to recover between two suctions. The elastic membrane 231 is sufficient to recover, allowing the air pressure in the detection chamber 20c to recover, thus enabling the airflow sensor 203 to be triggered normally and accurately record one suction. However, for aerosol generating medium 01 with higher suction resistance, the main pressure drop occurs at the inlet 201. The air pressure between the elastic membrane 231 and the aerosol generating medium 01 cannot recover in time, causing the elastic membrane 231 to fail to recover its deformation between two suctions. The air pressure in the detection chamber 20c cannot recover, thus failing to trigger the airflow sensor 203 normally, resulting in missed suction counts and affecting the user experience.

[0038] To improve the accuracy of recording, reduce omissions, and enhance user experience, this application provides a heating component.

[0039] Figure 4 This is a schematic diagram of the structure of a heating component provided in an embodiment of this application, such as... Figure 4 As shown, the heating component 20 includes an airway structure 21, a heating core 22, and a base 23. The airway structure 21 is cylindrical. Figure 5 This is a schematic diagram of the internal structure of a heating component provided in an embodiment of this application, as shown below. Figure 5 As shown, one end of the airway structure 21 has an inlet 20a, and the base 23 is connected to the other end of the airway structure 21. A first cavity 23a is formed between the base 23 and the airway structure 21. The heating element 22 is located in the airway structure 21, with one end of the heating element 22 facing the inlet 20a and the other end of the heating element 22 facing the base 23.

[0040] An airflow channel 20b is formed in the heating element, and the inlet 201 of the airflow channel 20b is connected to the socket 20a. Figure 6 This is a schematic diagram of the internal structure of a heating component provided in an embodiment of this application, as shown below. Figure 6 As shown, the first cavity 23a connects the outlet 202 of the airflow channel 20b with the heating core 22. The ratio of the flow cross-sectional area of ​​the inlet 201 to the flow cross-sectional area of ​​the outlet 202 is 0.9 to 1.

[0041] During suction, a negative pressure is created within the heating core 22, reducing the pressure in the first chamber 23a. Air enters the airflow channel 20b through the inlet 201 at the port 20a, and then reaches the first chamber 23a through the outlet 202 of the airflow channel 20b. By setting the ratio of the flow cross-sectional area of ​​the inlet 201 to the outlet 202 to 0.9~1, the pressure drop at the inlet 201 is smaller than that at the outlet 202 during the airflow process from the inlet 201 to the outlet 202. Because a larger pressure drop can be generated at the outlet 202, the air pressure in the first chamber 23a has enough time to recover between two suction cycles, and the elastic diaphragm 231 used to trigger the airflow sensor 203 is sufficient to recover, thus enabling the airflow sensor 203 to be triggered normally, accurately recording the number of suction cycles, and improving the user experience.

[0042] Figure 7 This is a schematic diagram simulating the air pressure during the suction of a heating element. The inlet cross-sectional area of ​​the airflow channel 20b of the simulated heating element 20 is 1.06 mm². 2 The flow cross-sectional area of ​​outlet 202 is 1.1 mm². 2 .like Figure 7 As shown, during suction, the pressure drop mainly occurs at the inlet 201 and outlet 202 of the airflow channel 20b, with inlet 201 being... Figure 7 At point C in the diagram, exit 202 is... Figure 7 Point D in the diagram. The pressure drop at inlet 201 is 16 Pa, and the pressure drop at outlet 202 is 145 Pa. The majority of the pressure drop occurs at outlet 202, accounting for nearly 90% of the total pressure drop at both inlet 201 and outlet 202.

[0043] The high pressure drop ratio at outlet 202 allows the air pressure in the first chamber 23a to recover quickly between two suctions, which is sufficient to restore the elastic diaphragm 231 that triggers the airflow sensor 203, enabling the airflow sensor 203 to be triggered normally, thereby improving the accuracy of suction count recording.

[0044] Figure 8 This is a schematic diagram of a tube structure provided in an embodiment of this application, such as... Figure 8 As shown, the airway structure 21 may include a tube body 211. The tube body 211 includes a connector section 2111, a receiving section 2112, and a connecting portion 2113. The connector section 2111 is coaxially connected to one end of the receiving section 2112. The connector section 2111 is used to connect the aerosol generating medium 01. (Refer to...) Figure 5 The heating element 22 is located in the receiving section 2112, and a first gap 2112a is formed between the inner wall of the receiving section 2112 and the outer wall of the heating element 22.

[0045] The inlet 201 is located on the inner side wall of the plug section 2111. The connecting part 2113 is located on the outer side wall of the plug section 2111. A connecting channel 2113a is formed in the connecting part 2113. One end of the connecting channel 2113a is connected to the inlet 201, and the other end of the connecting channel 2113a is connected to the first gap 2112a. The connecting channel 2113a and the first gap 2112a form an airflow channel 20b.

[0046] When the user performs suction, air enters the connecting channel 2113a through the inlet 201, then enters the first gap 2112a through the connecting channel, and finally reaches the outlet. The plug section 2111 can limit the aerosol generation medium 01. When the airflow flows through the first gap 2112a, it can be preheated by the heating core 22, improving the heating effect of the heating component 20.

[0047] like Figure 5 As shown, the airway structure 21 may further include a first limiting ring 212, which is detachably connected to the end of the insertion section 2111 away from the receiving section 2112. (Refer to...) Figure 8 As shown, a first notch 2111a is provided at the end face of the insertion section 2111 away from the receiving section 2112, and the first notch 2111a and the first limiting ring 212 form an entrance 201.

[0048] By setting a first notch 2111a on the side wall of the plug section 2111, and setting the first notch 2111a at the end face, the first notch 2111a and the first limiting ring 212 form an inlet 201, which makes it easy to change the size of the inlet 201 by adjusting the size of the first notch 2111a, thereby adjusting the ratio of the flow cross-sectional area of ​​the inlet 201 to the flow cross-sectional area of ​​the outlet 202.

[0049] Figure 9 This is a schematic diagram of the assembly of a first limiting ring and a tube body according to an embodiment of this application, as shown below. Figure 9 As shown, a first outer flange 21111 may be provided on the outer side wall of the insertion section 2111. A protruding ring 21112 is provided on the side of the first outer flange 21111 away from the receiving section 2112. A second gap 2111b is formed between the protruding ring 21112 and the outer side wall of the insertion section 2111, and the second gap 2111b connects the inlet 201 and the connecting channel 2113a.

[0050] Since the convex ring 21112 surrounds the insertion section 2111, the second gap 2111b also surrounds the insertion section 2111. The second gap 2111b connects the inlet 201 and the connecting channel 2113a, making it convenient to adjust the position of the inlet 201 circumferentially along the insertion port 20a as needed when designing the air passage structure 21.

[0051] As an example, inlet 201 and connecting channel 2113a are located on the same side of socket 20a.

[0052] The first limiting ring 212 can be engaged with the convex ring 21112. For example... Figure 9 As shown, the first limiting ring 212 may be provided with an annular groove 212a, and the protruding ring 21112 may be engaged in the annular groove 212a. The first limiting ring 212 abuts against the end of the insertion section 2111 to form a seal.

[0053] The end of the plug segment 2111 may also be connected to a positioning protrusion 2114. The side of the first limiting ring 212 near the plug segment 2111 may have a positioning hole 212b. The positioning protrusion 2114 can be inserted into the positioning hole 212b, which can facilitate the installation of the first limiting ring 212 and improve the stability of the installation of the first limiting ring 212.

[0054] like Figure 9 As shown, the inner wall of the first limiting ring 212 has a plurality of first protrusions 2121, which are distributed at intervals along the circumference of the first limiting ring 212. The first notch 2111a is located between two adjacent first protrusions 2121.

[0055] The first protrusion 2121 is used to contact the aerosol generating medium 01, so that a gap is formed between the inner surface of the first limiting ring 212 and the outer surface of the aerosol generating medium 01 for airflow to pass through.

[0056] For example, the inner surface of the first limiting ring 212 may be provided with four first protrusions 2121, and the four first protrusions 2121 are arranged at equal angular intervals along the circumference of the first limiting ring 212.

[0057] like Figure 9 As shown, the outer diameter of the insertion section 2111 is smaller than the inner diameter of the receiving section 2112. The receiving section 2112 is connected to an inner flange 21121 at one end near the insertion section 2111. The inner flange 21121 is connected to the insertion section 2111.

[0058] The end of the heating element 22 near the socket 20a abuts against the inner flange 21121. Figure 10 This is a schematic diagram of a tube structure provided in an embodiment of this application, such as... Figure 10 As shown, the inner flange 21121 has multiple limiting protrusions 21122 on the side near the base 23, and the multiple limiting protrusions 21122 are distributed around the heating core 22.

[0059] By setting the outer diameter of the insertion section 2111 to be smaller, when the aerosol generating medium 01 is inserted into the insertion section 2111, the gap between the aerosol generating medium 01 and the inner wall of the insertion section 2111 will be smaller, which is beneficial to improve airtightness and reduce air leakage.

[0060] Multiple limiting protrusions 21122 are provided on the inner flange 21121. The multiple limiting protrusions 21122 are distributed around the heating core 22, which can limit the heating core 22 from the outside, making the installation of the heating core 22 more stable and ensuring that the end of the heating core 22 is aligned with the insertion section 2111, so that the aerosol generating medium 01 can pass smoothly through the insertion section 2111 and be inserted into the heating core 22.

[0061] like Figure 4 As shown, the airway structure 21 also includes a support base 213, which is at least partially inserted into the receiving section 2112. The support base 213 abuts against the base 23 and the heating core 22 respectively.

[0062] Figure 11 This is a schematic diagram of the structure of a support base provided in an embodiment of this application, as shown below. Figure 11 As shown, the outer wall of the support 213 is provided with a second outer flange 2131, which is sealed to the inner wall of the tube 211. The edge of the second outer flange 2131 has a second notch 2131a, which together with the inner wall of the tube 211 forms an outlet 202.

[0063] The support base 213 provides support for the heating element 22, which can keep the heating element 22 stable. The second outer flange 2131 is sealed with the inner wall of the tube body 211 to prevent air leakage.

[0064] By setting a second notch 2131a at the edge of the second outer flange 2131, and using the second notch 2131a and the inner wall of the pipe body 211 to form an outlet 202, it is convenient to change the size of the outlet 202 by adjusting the size of the second notch 2131a, thereby adjusting the ratio of the flow cross-sectional area of ​​the inlet 201 to the flow cross-sectional area of ​​the outlet 202.

[0065] like Figure 11 As shown, a positioning protrusion 21311 is connected to the outer peripheral wall of the second outer flange 2131. (Refer to...) Figure 10 As shown, an alignment groove 211a is provided on the end face of the tube body 211 near the base 23. An alignment protrusion 21311 is located in the alignment groove 211a.

[0066] By engaging the alignment protrusion 21311 with the alignment groove 211a, the installation of the support 213 can be facilitated, and the stability of the support 213 can be improved.

[0067] Multiple alignment bumps 21311 can be provided, and alignment grooves 211a can be arranged one-to-one with alignment bumps 21311.

[0068] As an example, two aligning protrusions 21311 may be connected to the outer peripheral wall of the second outer flange 2131. The two aligning protrusions 21311 include a first aligning protrusion and a second aligning protrusion. The first and second alignment protrusions can be of different sizes. Two alignment grooves 211a can be provided on the end face of the tube body 211 near the base 23. These two grooves include a first alignment groove and a second alignment groove. The size of the first alignment groove matches the size of the first alignment protrusion, and the size of the second alignment groove matches the size of the second alignment protrusion. The first alignment protrusion is located in the first alignment groove, and the second alignment protrusion is located in the second alignment groove. Through the engagement of the first alignment protrusion with the first alignment groove and the second alignment protrusion with the second alignment groove, the relative position of the support base 213 and the tube body 211 can be restricted. Furthermore, since the first and second alignment protrusions are of different sizes, incorrect assembly of the relative position of the support base 213 and the tube body 211 in the circumferential direction can be avoided during the assembly of the heating element 20.

[0069] Figure 12 This is a schematic diagram of the structure of a base provided in an embodiment of this application, such as... Figure 12 As shown, the base 23 has a first slot 23b, and the tube 211 is inserted into the first slot 23b. The side wall of the first slot 23b is provided with an annular stop 23c, and the side of the annular stop 23c near the tube 211 has a support block 232, and the alignment protrusion 21311 is supported on the support block 232.

[0070] By setting a support block 232 on the annular stop 23c, the alignment protrusion 21311 is supported by the support block 232, creating a gap between the end face of the tube body 211 and the annular stop 23c. If the end face of the tube body 211 is directly supported, the alignment protrusion 21311 will not be supported due to the inevitable assembly error between it and the alignment groove 211a, resulting in slight wobbling. In this example, the support block 232 supports the alignment protrusion 21311, causing it to abut against the bottom of the alignment groove 211a, thereby limiting the axial movement of the tube body 211 and preventing structural loosening caused by the assembly error between the alignment protrusion 21311 and the alignment groove 211a.

[0071] like Figure 12 As shown, the bottom of the first slot 23b has a first through hole 23d, and an elastic membrane 231 is disposed in the first through hole 23d. The edge of the elastic membrane 231 can be connected to the hole wall of the first through hole 23d.

[0072] For example, the elastic membrane 231 can be a membrane made of silicone material.

[0073] Reference Figure 11As shown, the end face of the support base 213 opposite to the elastic membrane 231 has multiple second through holes 213a, which connect the first cavity 23a and the heating core 22. The end face of the support base 213 opposite to the elastic membrane 231 is also connected to multiple second protrusions 2132.

[0074] The support base 213, near the elastic membrane 231, forms a first cavity 23a with the elastic membrane 231. When the user performs suction, the airflow in the first cavity 23a enters the heating core 22 through the second through hole 213a and enters the aerosol generating medium 01, thereby causing the air pressure in the first cavity 23a to drop. Under the action of air pressure, the elastic membrane 231 deforms towards the second through hole 213a. Between two suctions, airflow can be replenished to the first cavity 23a from the outlet 202 of the airflow channel 20b and the second through hole 213a, restoring the air pressure in the first cavity 23a and allowing the elastic membrane 231 to recover.

[0075] By providing multiple second protrusions 2132 on the support 213, and with the second protrusions 2132 located on the end face of the support 213 opposite to the elastic membrane 231, the second protrusions 2132 can play a certain limiting role, thereby limiting the deformation of the elastic membrane 231, preventing the elastic membrane 231 from contacting the end face of the support 213 and blocking the second through hole 213a, and ensuring smooth airflow.

[0076] As an example, multiple second protrusions 2132 can be distributed at equal angular intervals along the edge of the end face of the support 213, so that the elastic membrane 231 has sufficient deformation space.

[0077] like Figure 11 As shown, the second outer flange 2131 may also have a wiring hole 2131b. For example... Figure 12 As shown, the base 23 is also provided with a wiring channel 23e. One end of the wiring channel 23e is connected to the first cavity 23a, and the other end of the wiring channel 23e extends to the outer surface of the base 23. The lead wire 223 of the heating element 22 passes through the wiring hole 2131b and the wiring channel 23e; the wiring hole 2131b and the wiring channel 23e are filled with sealant.

[0078] Reference Figure 4 As shown, the heating core 22 may include a tubular substrate 221, a heating element 222, and a lead wire 223. Exemplarily, the tubular substrate 221 may be a ceramic component.

[0079] The heating element 222 can be located at at least one position among the outer wall of the tubular base 221, the inner wall of the tubular base 221, and within the side wall of the tubular base 221. As an example, Figure 4 The heating element 222 is located on the outer wall of the tubular substrate 221.

[0080] One end of the lead wire 223 is connected to the heating element 222, and the other end of the lead wire 223 is used to connect to the power supply component 10. The lead wire 223 is used to supply power to the heating element 222, so that the heating element 222 heats up, thereby heating the aerosol generating medium 01.

[0081] By providing wiring holes 2131b and wiring channels 23e, the lead wire 223 can extend to the outside of the heating element 20, facilitating connection between the lead wire 223 and the power supply element 10. Sealant is filled into the wiring holes 2131b and wiring channels 23e to prevent air leakage from the heating element 20.

[0082] like Figure 5 As shown, the heating component 20 may further include a connecting seat 24, which can be connected to the base 23. The connecting seat 24 and the base 23 form a detection cavity 20c. The detection cavity 20c is used to connect to the airflow sensor 203.

[0083] like Figure 5 As shown, in some examples, the airway structure 21 may also include a reflective membrane 25, which may be disposed on at least a portion of the inner wall of the airway structure 21.

[0084] For example, the reflective film 25 can be disposed on the inner sidewall of the receiving section 2112.

[0085] When the heating core 22 is working, the reflective film 25 can reflect the heat radiated outward from the heating core 22 back to the heating core 22, reducing heat dissipation. This helps to reduce the power consumption of the heated non-combustible device, thereby extending its operating range. Reflecting heat back to the heating core 22 also helps to preheat the airflow located in the first gap 2112a, further improving the heating effect of the heating component 20.

[0086] This application embodiment also provides a heating non-combustible device, which includes a power supply component 10 and the aforementioned heating component 20, wherein the power supply component 10 is used to supply power to the heating component 20.

[0087] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.

Claims

1. A heating element, characterized in that, The device includes an airway structure (21), a heating element (22), and a base (23). The airway structure (21) is cylindrical and has an inlet (20a) at one end. The base (23) is connected to the other end of the airway structure (21), and a first cavity (23a) is formed between the base (23) and the airway structure (21). The heating element (22) is located in the airway structure (21), with one end facing the inlet (20a) and the other end facing the base (23). An airflow channel (20b) is formed in the heating component. The inlet (201) of the airflow channel (20b) is connected to the socket (20a). The first cavity (23a) is connected to the outlet (202) of the airflow channel (20b) and the heating core (22). The ratio of the flow cross-sectional area of ​​the inlet (201) to the flow cross-sectional area of ​​the outlet (202) is 0.9 to 1.

2. The heating component according to claim 1, characterized in that, The airway structure (21) includes a tube body (211), which includes a plug section (2111), a receiving section (2112), and a connecting part (2113). The plug section (2111) is coaxially connected to one end of the receiving section (2112). The plug section (2111) is used to plug in the aerosol generating medium (01). The heating core (22) is located in the receiving section (2112). A first gap (2112a) is formed between the inner wall of the receiving section (2112) and the outer wall of the heating core (22). The inlet (201) is located on the inner wall of the plug section (2111), and the connecting part (2113) is located on the outer wall of the plug section (2111). A connecting channel (2113a) is formed in the connecting part (2113). One end of the connecting channel (2113a) is connected to the inlet (201), and the other end of the connecting channel (2113a) is connected to the first gap (2112a). The connecting channel (2113a) and the first gap (2112a) form the airflow channel (20b).

3. The heating component according to claim 2, characterized in that, The airway structure (21) further includes a first limiting ring (212), which is detachably connected to the end of the insertion section (2111) away from the receiving section (2112). A first notch (2111a) is provided at the end face of the insertion section (2111) away from the receiving section (2112), and the first notch (2111a) and the first limiting ring (212) form the entrance (201).

4. The heating component according to claim 3, characterized in that, A first outer flange (21111) is provided on the outer side wall of the plug section (21111). A convex ring (21112) is provided on the side of the first outer flange (21111) away from the receiving section (2112). A second gap (2111b) is formed between the convex ring (21112) and the outer side wall of the plug section (2111). The second gap (2111b) connects the inlet (201) and the connecting channel (2113a).

5. The heating component according to claim 3, characterized in that, The inner wall of the first limiting ring (212) has a plurality of first protrusions (2121), which are distributed at intervals along the circumference of the first limiting ring (212), and the first notch (2111a) is located between two adjacent first protrusions (2121).

6. The heating element according to any one of claims 2 to 5, characterized in that, The outer diameter of the plug section (2111) is smaller than the inner diameter of the receiving section (2112). The receiving section (2112) has an inner flange (21121) connected to one end of the plug section (2111), and the inner flange (21121) is connected to the plug section (2111). The heating element (22) near the socket (20a) abuts against the inner flange (21121). The inner flange (21121) near the base (23) is provided with a plurality of limiting protrusions (21122), which are distributed around the heating element (22).

7. The heating component according to any one of claims 2 to 5, characterized in that, The airway structure (21) also includes a support base (213), which is at least partially inserted into the receiving section (2112), and the support base (213) abuts against the base (23) and the heating element (22) respectively; The outer wall of the support (213) is provided with a second outer flange (2131), which is sealed to the inner wall of the tube (211). The edge of the second outer flange (2131) has a second notch (2131a), which together with the inner wall of the tube (211) forms the outlet (202).

8. The heating element according to claim 7, characterized in that, The second outer flange (2131) has a positioning protrusion (21311) connected to its outer peripheral wall. The tube body (211) has a positioning groove (211a) on its end face near the base (23). The positioning protrusion (21311) is located in the positioning groove (211a).

9. The heating element according to claim 8, characterized in that, The base (23) has a first slot (23b), and the tube (211) is inserted into the first slot (23b); the side wall of the first slot (23b) is provided with an annular stop (23c), and the annular stop (23c) has a support block (232) on the side near the tube (211), and the alignment protrusion (21311) is supported on the support block (232).

10. The heating component according to claim 9, characterized in that, The bottom of the first slot (23b) has a first through hole (23d), in which an elastic membrane (231) is disposed; the end face of the support (213) opposite to the elastic membrane (231) has a plurality of second through holes (213a), which connect the first cavity (23a) and the heating core (22); the end face of the support (213) opposite to the elastic membrane (231) is also connected to a plurality of second protrusions (2132).

11. The heating component according to claim 7, characterized in that, The second outer flange (2131) also has a wiring hole (2131b), and the base (23) is also provided with a wiring channel (23e). One end of the wiring channel (23e) is connected to the first cavity (23a), and the other end of the wiring channel (23e) extends to the outer surface of the base (23). The lead wire (223) of the heating core (22) passes through the wiring hole (2131b) and the wiring channel (23e). The wiring hole (2131b) and the wiring channel (23e) are filled with sealant.

12. The heating component according to any one of claims 1-5 and 8-11, characterized in that, The airway structure (21) further includes a reflective membrane (25) disposed on at least a portion of the inner wall of the airway structure (21).

13. A heating non-combustible device, characterized in that, It includes a power supply component (10) and a heating component as described in any one of claims 1 to 12, wherein the power supply component (10) is used to supply power to the heating component (20).

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