Heater and aerosol delivery device using same

Abstract

The utility model provides a heater and an aerosol delivery device applying the same, the heater of the aerosol delivery device comprises a heat conduction pipe, a heat conduction plate and a heat conduction base, the heat conduction pipe is hollow, the heat conduction plate and the heat conduction base are respectively plugged at two axial ends of the heat conduction pipe along the axial direction of the heat conduction pipe, and the heat conduction plate is connected with the heat conduction base. A sealed cavity is formed among the heat conduction pipe, the heat conduction plate and the heat conduction base, the heat conduction pipe is provided with an air inlet and a first heating circuit, and the heat conduction plate is provided with an air outlet and a second heating circuit. According to the utility model, the preheating time of the aerosol generating product is shortened, and the user experience is improved.

Description

Technical Field

[0001] This utility model relates to the field of aerosol generation technology, and in particular to a heater and an aerosol delivery device using the heater. Background Technology

[0002] Currently, heating aerosol-generating products (such as non-combustible tobacco products) at lower temperatures allows them to release aerosols without combustion and deliver them to consumers, thus replacing combustible tobacco products. Existing technologies include methods that heat air using a heater, and then use this heated air to heat the aerosol-generating product. However, in these technologies, when the heater begins preheating the air, there is no suction action. Therefore, the air does not flow towards the aerosol-generating product under suction; instead, it only heats the air around the heating area. This causes the air in that area to expand and begin to flow. Consequently, it takes a long time for the heated air to reach the aerosol-generating product, resulting in a long preheating time and a poor user experience. Summary of the Invention

[0003] To overcome the problems of long preheating time in existing aerosol heating schemes, this utility model provides a heater and an aerosol delivery device using the heater.

[0004] In view of the above technical problems, this utility model provides an aerosol delivery device, including a heater for heating an aerosol generating article to generate an aerosol. The heater comprises a heat-conducting pipe, a heat-conducting plate, and a heat-conducting base. The heat-conducting pipe is hollow inside. Along the axial direction of the heat-conducting pipe, the heat-conducting plate and the heat-conducting base are respectively sealed at both ends of the heat-conducting pipe to form a sealed cavity between the heat-conducting pipe, the heat-conducting plate, and the heat-conducting base. The heat-conducting pipe is provided with an air inlet and a first heating circuit, and the heat-conducting plate is provided with an air outlet and a second heating circuit.

[0005] Optionally, the radial outer diameter of the heat-conducting plate is equal to the radial outer diameter of the heat-conducting pipe, the heat-conducting plate has a central portion and an edge portion, the edge portion is located at the top of the heat-conducting pipe, and the central portion has the air outlet holes distributed thereon.

[0006] Optionally, the second heating line is disposed on the upper surface of the heat-conducting plate facing away from the cavity; or, the second heating line is disposed on the lower surface of the heat-conducting plate facing the cavity; or, the second heating line is disposed on the circumferential surface of the heat-conducting plate; or, the second heating line is disposed inside the heat-conducting plate.

[0007] Optionally, the second heating circuit is distributed around the air outlet.

[0008] Optionally, the heat-conducting plate has a protrusion.

[0009] Optionally, the heater further includes a support tube disposed inside the heat-conducting pipe. The heat-conducting base includes a sealing portion and an extension portion extending from the sealing portion into the heat-conducting pipe. The bottom of the support tube abuts against the extension portion, and the top of the support tube abuts against the heat-conducting plate, thereby dividing the cavity into an outer cavity and an inner cavity, which are connected by an airflow channel.

[0010] Optionally, the sealing part is embedded inside the heat-conducting pipe, and the radial outer diameter of the sealing part is equal to the radial inner diameter of the heat-conducting pipe.

[0011] Optionally, a heat-conducting column is provided in the inner cavity.

[0012] This utility model embodiment also provides a heater suitable for an aerosol delivery device, including a heat-conducting pipe, a heat-conducting plate, and a heat-conducting base. The heat-conducting pipe is hollow inside. Along the axial direction of the heat-conducting pipe, the heat-conducting plate and the heat-conducting base are respectively sealed at both ends of the axial direction of the heat-conducting pipe to form a sealed cavity between the heat-conducting pipe, the heat-conducting plate, and the heat-conducting base. An air inlet is provided on the heat-conducting pipe, and a first heating circuit is also provided on the heat-conducting pipe. An air outlet is provided on the heat-conducting plate, and a second heating circuit is also provided on the heat-conducting plate.

[0013] In the aerosol delivery device of the above embodiments of this utility model, when the heater preheats the air, a sealed cavity is formed between the heat-conducting pipe, the heat-conducting plate, and the heat-conducting base. The heat-conducting plate is provided with a second heating line and an air outlet. Therefore, when the second heating line heats up, it can directly and quickly heat the air passing through the air inlet and the air in the cavity near the heat-conducting plate. In this way, the air near the air outlet of the aerosol generating product will quickly reach the aerosol generating product after being heated and preheat it, shortening the preheating time of the aerosol generating product and improving the user experience. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] Figure 1 This is a schematic diagram of the structure of an aerosol delivery device provided in an embodiment of the present invention.

[0016] Figure 2 This is an exploded structural diagram of the heating element of an aerosol delivery device provided in an embodiment of this utility model.

[0017] Figure 3 This is a cross-sectional structural schematic diagram of the heating element of an aerosol delivery device provided in an embodiment of the present invention.

[0018] Figure 4 This is a cross-sectional structural schematic diagram of the heating element of an aerosol delivery device provided in another embodiment of the present invention. Detailed Implementation

[0019] To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0020] like Figures 1 to 4 As shown, this embodiment of the present invention provides an aerosol delivery device, including a heater 1 for heating an aerosol generating product 4 to generate an aerosol. The heater 1 includes a heat-conducting pipe 11, a heat-conducting plate 12, and a heat-conducting base 13. The heat-conducting pipe 11 is hollow inside. Along the axial direction of the heat-conducting pipe 11, the heat-conducting plate 12 and the heat-conducting base 13 are respectively sealed at both ends of the heat-conducting pipe 11 to form a sealed cavity 14 between the heat-conducting pipe 11, the heat-conducting plate 12 and the heat-conducting base 13. The heat-conducting pipe 11 is provided with an air inlet 15 and a first heating line 16, and the heat-conducting plate 12 is provided with an air outlet 17 and a second heating line 18. The aerosol delivery device may also include components such as a heat insulation pipe 2, a battery, and a controller. The heat insulation tube 2 is provided with a cavity for accommodating the aerosol-generating product 4. An air outlet 17 communicates with this cavity. When the user inhales, the heated air in the cavity 14 flows into the cavity through the air outlet 17 to heat the aerosol-generating product 4 for inhalation. The heat insulation tube 2 has a first air inlet 21, and the outer shell 3 has a second air inlet 31, which communicates with the first air inlet 21. The heat insulation tube 2 achieves good heat insulation and improves thermal efficiency. Figure 1 The middle arrow indicates that external gas enters through the second air inlet 31 on the outer casing 3 and then enters the heat insulation pipe 2 through the first air inlet 21.

[0021] In the aerosol delivery device of the above embodiment of this utility model, when the heater 1 preheats the air, a sealed cavity 14 is formed between the heat-conducting pipe 11, the heat-conducting plate 12, and the heat-conducting base 13. The heat-conducting plate 12 is provided with a second heating line 18 and an air outlet 17. Therefore, when the second heating line 18 heats up, it can directly and rapidly heat the air passing through the air inlet 15 and the air in the cavity 14 near the heat-conducting plate 12. In this way, the air near the air outlet 17 of the aerosol generating product 4 will quickly reach the aerosol generating product 4 after being heated and preheat it, shortening the preheating time of the aerosol generating product 4 and improving the user experience. At the same time, since the heat-conducting pipe 11 is provided with an air inlet 15 and a first heating line 16, when the first heating line 16 heats up, it can directly and rapidly heat the air passing through the air inlet 15 and the air in the cavity 14 near the heat-conducting pipe 11. When the first heating circuit 16 and the second heating circuit 18 heat up simultaneously, each area in the air-containing area consisting of the air inlet 15, the cavity 14, and the air outlet 17 can be rapidly heated, thus improving the air heating efficiency.

[0022] Understandably, in this embodiment, the heating of the first heating line 16 and the second heating line 18 is controllable; that is, the first heating line 16 and the second heating line 18 can heat up simultaneously to achieve preheating. After preheating is completed, only one of the first heating line 16 and the second heating line 18 may heat up. In this way, the temperature of the heat-conducting plate 12 and the heat-conducting pipe 11 can be controlled in zones to improve the stability of the air temperature conducted to the aerosol generating product 4, and also to help maintain a constant heating temperature of the aerosol generating product 4. For example, after preheating is completed, only the first heating line 16 heats up, but if the temperature of the air flowing out of the air outlet 17 is not high enough, the first heating line 16 and the second heating line 18 can be controlled to heat up simultaneously again to increase the temperature.

[0023] In one embodiment, such as Figure 3 and Figure 4As shown, the radial outer diameter of the heat-conducting plate 12 is equal to the radial outer diameter of the heat-conducting pipe 11. The heat-conducting plate 12 has a central portion 121 and an edge portion 122. The edge portion 122 is located at the top of the heat-conducting pipe 11, and the central portion 121 has the air vents 17 distributed thereon. The heat-conducting plate 12 has an upper surface and a lower surface arranged opposite to each other. The upper surface faces the cavity 14, and the lower surface faces the aerosol-generating product 4. The air vents 17 penetrate the upper and lower surfaces. Understandably, the central portion 121 may have one air vent 17. The central portion 121 may also have multiple air vents 17 spaced apart. After preheating, when the user draws air in, the air in the cavity 14 flows toward the air vents 17 and first contacts the lower surface of the heat-conducting plate 12, then flows out from the upper surface through the air vents 17 to bake the aerosol-generating product 4.

[0024] In this embodiment, the heat-conducting plate 12 is mounted on the heat-conducting pipe 11, the lower surface of the second heating line 18 is in contact with the heat-conducting pipe 11, and the heat-conducting pipe 11 can support the heat-conducting plate 12. The heat conducted by the first heating line 16 to the heat-conducting pipe 11 can first be conducted to the edge portion 122, and then conducted upward and to the center portion 121 through the edge portion 122, so as to heat the aerosol generating product 4 at the bottom and around the perimeter of the receiving cavity.

[0025] In one embodiment, the second heating line 18 is disposed on the upper surface of the heat-conducting plate 12 facing away from the cavity 14. That is, in this embodiment, the second heating line 18 is disposed on the upper surface facing the aerosol generating product 4. In this way, the second heating line 18 is closer to the aerosol generating product 4, and the heat from the second heating line 18 can be conducted to the receiving cavity more quickly to bake the aerosol generating product 4, thereby increasing the preheating speed, reducing the preheating time, and also improving the heating speed and efficiency after preheating.

[0026] In one embodiment, the first heating line 16 is disposed on the outer wall of the heat-conducting plate 12. In this embodiment, the second heating line 18 is disposed on the outer wall of the heat-conducting plate 12. Thus, the heat from the second heating line 18 is conducted from the outer wall to the entire heat-conducting plate 12, and then conducted through the heat-conducting plate 12 to the surrounding area of ​​the cavity to bake the aerosol generating product 4. This makes the heat distribution for heating the aerosol generating product 4 more uniform and improves the overall heating effect of the aerosol generating product 4.

[0027] In one embodiment, such as Figure 3 and Figure 4As shown, the second heating line 18 is disposed on the lower surface of the heat-conducting plate 12 facing the cavity 14. In this embodiment, the second heating line 18 is disposed on the lower surface of the heat-conducting plate 12, wherein at least part of the second heating line 18 may be exposed in the cavity 14, or at least part may be sandwiched between the heat-conducting pipe 11 and the heat-conducting plate 12. When the second heating line 18 heats up, the portion exposed in the cavity 14 can directly heat the air in the cavity 14, thereby improving the air preheating efficiency and the heating efficiency after preheating. The portion sandwiched between the heat-conducting pipe 11 and the heat-conducting plate 12 allows a portion of the heat from the second heating line 18 to be conducted downwards to the heat-conducting pipe 11, thereby improving the heating efficiency of the air in the cavity 14. Meanwhile, as... Figure 1 As shown, when the second heating line 18 is disposed on the lower surface of the heat-conducting plate 12, the heat of the second heating line 18 needs to be conducted from the lower surface to the entire heat-conducting plate 12, and then conducted through the heat-conducting plate 12 to heat the aerosol generating product 4 in the accommodating cavity, thereby making the baking heat distribution of the aerosol generating product 4 more uniform.

[0028] In one embodiment, the second heating line 18 is distributed around the vent 17. Further, as... Figure 2 As shown, the second heating line 18 is a ring-shaped heating line. When the heat-conducting plate 12 is similar to a circle and the heat-conducting pipe 11 is a cylinder, designing the second heating line 18 as a ring-shaped heating line allows its shape to better match the heat-conducting plate 12 and the heat-conducting pipe 11, thus facilitating installation and also promoting better heat conduction from the second heating line 18 to the heat-conducting plate 12 and the heat-conducting pipe 11. Understandably, the second heating line 18 can also be set as a non-ring-shaped line. Specifically, the second heating line 18 has one or more curved sections to increase the heating area of ​​the second heating line 18. The second heating line 18 can also be set to be the same size as the upper or lower surface of the heat-conducting plate 12, and a through hole can be provided on the second heating line 18 at the position opposite to the vent 17.

[0029] In one embodiment, such as Figure 2 and Figure 4 As shown, the heat-conducting plate 12 has a protrusion 123. In this embodiment, the electrode electrically connected to the second heating circuit 18 can extend to the protrusion 123 for lead-out. However, in this invention, the electrode can also be led out directly from other parts of the heat-conducting plate 12, and is not limited here.

[0030] In one embodiment, such as Figures 1 to 4As shown, the heater 1 also includes a support tube 19, which is disposed inside the heat-conducting pipe 11. The heat-conducting base 13 includes a sealing part 131 and an extension part 132 extending from the sealing part 131 into the heat-conducting pipe 11. The bottom of the support tube 19 abuts against the extension part 132, and the top of the support tube 19 abuts against the heat-conducting plate 12, so as to divide the cavity 14 into an outer cavity 141 and an inner cavity 142. The outer cavity 141 and the inner cavity 142 are connected through an airflow channel 143.

[0031] In this embodiment, the support tube 19 abuts between the extension 132 and the heat-conducting plate 12, and can be used to support the heat-conducting plate 12 so that the heat-conducting plate 12 is installed stably. Specifically, the shape and structure of the support tube 19 can be set according to requirements and are not limited here. In this embodiment, the support tube 19 is disposed in the heat-conducting pipe 11, and the heat of the heat-conducting plate 12 can also be conducted to the support tube 19 through the lower surface, so that the contact area between the support tube 19 and the air in the heat-conducting pipe 11 is increased, thereby improving the air heating efficiency. At the same time, the double-layer design of the inner cavity 142 and the outer cavity 141 allows the air to stay in the heater 1 for a longer time, thereby increasing the contact area between the air and the inner cavity 142 and the outer cavity 141, thereby increasing the contact time and improving the heat exchange rate and heating effect. Understandably, the outer cavity 141 can be arranged in a ring shape, and the support tube 19 abuts against the extension 132 to separate the outer cavity 141 and the inner cavity 142. An airflow channel 143 may be formed between the extension 132 and the carrier tube 19 so that airflow can enter the inner cavity 142 from the outer cavity 141 through the airflow channel 143.

[0032] In one embodiment, such as Figure 3 and Figure 4 As shown, the sealing part 131 is embedded inside the heat-conducting pipe 11, and the radial outer diameter of the sealing part 131 is equal to the radial inner diameter of the heat-conducting pipe 11. That is, the radial outer diameter of the sealing part 131 is equal to the radial inner diameter of the heat-conducting pipe 11, which can achieve a sealed connection between the outer wall of the sealing part 131 and the inner wall of the heat-conducting pipe 11, thereby forming a sealed cavity 14.

[0033] Understandably, the lower surface of the second heating line 18 can be bonded to the heat-conducting pipe 11 and / or the carrier pipe 19. In a first aspect of this embodiment, when the lower surface of the second heating line 18 is bonded to the heat-conducting pipe 11, the heat from the second heating line 18 can be conducted downwards to the heat-conducting pipe 11 while simultaneously being conducted to the heat-conducting plate 12, thereby improving the heating efficiency of the air in the cavity 14 through contact between the heat-conducting pipe 11 and the air in the cavity 14. In a second aspect of this embodiment, when the lower surface of the second heating line 18 is bonded to the carrier pipe 19, the heat from the second heating line 18 can be conducted downwards to the carrier pipe 19 while simultaneously being conducted to the heat-conducting plate 12, thereby improving the heating efficiency of the air in the cavity 14 through contact between the carrier pipe 19 and the air in the cavity 14. Similarly, when the end face of the second heating line 18 away from the lower surface is simultaneously connected to the heat pipe 11 and the support pipe 19, the heat from the second heating line 18 can be conducted to the heat pipe 11 and the support plate at the same time as it is conducted to the heat plate 12, so as to better improve the air heating efficiency.

[0034] In one embodiment, a heat-conducting column 20 is provided in the inner cavity 142. Understandably, the heat-conducting column 20 can be connected to at least one of the heat-conducting pipe 11, heat-conducting plate 12, or carrier pipe 19. With the heat-conducting column 20 disposed in the inner cavity 142, after air enters the inner cavity 142, the air will come into full contact with the heat-conducting column 20, increasing the heating contact area of ​​the air, thereby allowing the air to be rapidly heated in the inner cavity 142 and improving the heating effect.

[0035] In one embodiment, the first heating line 16 is an S-shaped heating line. Understandably, the S-shaped heating line here refers to the first heating line 16 having multiple bends. The design of the S-shaped heating line allows it to better avoid structures such as the air inlet 15 on the heat pipe 11 while maximizing the heating area of ​​the heat pipe 11, thereby improving the heating effect.

[0036] In one embodiment, the aerosol delivery device includes a controller (not shown) and a thermistor (not shown) disposed at the air outlet 17. The controller is connected to the thermistor, the first heating line 16, and the second heating line 18. The controller can be a circuit control board or similar device. The thermistor can detect the real-time temperature of the air flowing from the air outlet 17 and transmit this value to the controller. The controller can then control the first heating line 16 and the second heating line 18 to turn on or off heating based on the real-time temperature value, thereby achieving zoned temperature control of the heat-conducting plate 12 and the heat-conducting pipe 11.

[0037] This utility model embodiment provides a heater 1 suitable for an aerosol delivery device. The heater 1 includes a heat-conducting pipe 11, a heat-conducting plate 12, and a heat-conducting base 13. The heat-conducting pipe 11 is hollow inside. Along the axial direction of the heat-conducting pipe 11, the heat-conducting plate 12 and the heat-conducting base 13 are respectively sealed at both ends of the heat-conducting pipe 11 to form a sealed cavity 14 between the heat-conducting pipe 11, the heat-conducting plate 12 and the heat-conducting base 13. The heat-conducting pipe 11 is provided with an air inlet 15 and a first heating line 16. The heat-conducting plate 12 is provided with an air outlet 17 and a second heating line 18. This invention is applicable to the heater 1 of the aerosol delivery device. When the second heating line 18 heats up, it can directly and quickly heat the air passing through the air inlet 15 and the air in the cavity 14 near the heat-conducting plate 12. In this way, the air near the air outlet 17 of the aerosol generating product 4 will quickly reach the aerosol generating product 4 after being heated and preheat it, shortening the preheating time of the aerosol generating product 4 and improving the user experience.

[0038] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An aerosol delivery device, comprising a heater for heating an aerosol generating article to generate an aerosol, characterized in that, The heater includes a heat-conducting pipe, a heat-conducting plate, and a heat-conducting base. The heat-conducting pipe is hollow inside. Along the axial direction of the heat-conducting pipe, the heat-conducting plate and the heat-conducting base are respectively sealed at both ends of the axial direction of the heat-conducting pipe to form a sealed cavity between the heat-conducting pipe, the heat-conducting plate, and the heat-conducting base. The heat-conducting pipe is provided with an air inlet and a first heating circuit, and the heat-conducting plate is provided with an air outlet and a second heating circuit.

2. The aerosol delivery device according to claim 1, characterized in that, The radial outer diameter of the heat-conducting plate is equal to the radial outer diameter of the heat-conducting pipe. The heat-conducting plate has a central portion and an edge portion. The edge portion is located at the top of the heat-conducting pipe, and the central portion has the air outlet holes distributed thereon.

3. The aerosol delivery device according to claim 1, characterized in that, The second heating line is disposed on the upper surface of the heat-conducting plate facing away from the cavity; or, the second heating line is disposed on the lower surface of the heat-conducting plate facing the cavity; or, the second heating line is disposed on the circumferential surface of the heat-conducting plate; or, the second heating line is disposed inside the heat-conducting plate.

4. The aerosol delivery device according to claim 1, characterized in that, The second heating circuit is distributed around the air outlet.

5. The aerosol delivery device according to claim 1, characterized in that, The heat-conducting plate has a protrusion.

6. The aerosol delivery device according to claim 1, characterized in that, The heater also includes a support tube disposed inside the heat-conducting pipe. The heat-conducting base includes a sealing part and an extension part extending from the sealing part into the heat-conducting pipe. The bottom of the support tube abuts against the extension part, and the top of the support tube abuts against the heat-conducting plate, so as to divide the cavity into an outer cavity and an inner cavity, which are connected by an airflow channel.

7. The aerosol delivery device according to claim 6, characterized in that, The sealing part is embedded inside the heat-conducting pipe, and the radial outer diameter of the sealing part is equal to the radial inner diameter of the heat-conducting pipe.

8. The aerosol delivery device according to claim 6, characterized in that, The inner cavity is equipped with heat-conducting columns.

9. The aerosol delivery device according to any one of claims 1 to 8, characterized in that, The first heating circuit is a ring-shaped heating circuit; and / or The second heating circuit is an S-shaped heating circuit.

10. A heater suitable for an aerosol delivery device, characterized in that, The heater includes a heat-conducting pipe, a heat-conducting plate, and a heat-conducting base. The heat-conducting pipe is hollow inside. Along the axial direction of the heat-conducting pipe, the heat-conducting plate and the heat-conducting base are respectively sealed at both ends of the axial direction of the heat-conducting pipe to form a sealed cavity between the heat-conducting pipe, the heat-conducting plate, and the heat-conducting base. The heat-conducting pipe is provided with an air inlet and a first heating circuit, and the heat-conducting plate is provided with an air outlet and a second heating circuit.

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