Cup-shaped heater and aerosol generating device

Abstract

The utility model discloses a cup-shaped heater and an aerosol generating device, the cup-shaped heater comprises an infrared heating tube, the infrared heating tube generates infrared radiation after being electrified to heat a substance to be heated in the circumferential direction; and the heating base is mounted at the bottom end of the infrared heating tube, and the heating base is electrified to heat from the bottom of the to-be-heated substance. According to the utility model, the heated material can be uniformly heated, the contact area is increased, the smoke outlet speed is accelerated, and the user experience is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of aerosol generating devices, and in particular to a cup-shaped heater and an aerosol generating device. Background Technology

[0002] Aerosol generating devices use heaters to heat substances such as tobacco, tea leaves, and herbs without burning them to release compounds.

[0003] Currently, heaters for aerosol generation devices generally include: needle heaters, tongue-type heaters, and tubular opaque heaters (ceramic tubes, stainless steel tubes, etc.). These heaters have the following disadvantages:

[0004] 1. These heaters generally use heat conduction for heating, which has poor penetration into the material being heated, easily leading to uneven heating and affecting the heating effect. For example, when heating is uneven, the temperature of the material being heated is high at the periphery and low at the center, or vice versa.

[0005] 2. The contact area with the substance to be heated is not large enough, and the smoke output is slow. It takes more than 10 seconds for smoke to appear after the heater is turned on, which affects the user experience.

[0006] Therefore, existing technologies need to be improved. Utility Model Content

[0007] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a cup-shaped heater and an aerosol generating device, which aims to enable the heated material to be heated evenly, while increasing the contact area, accelerating the smoke output speed, and improving the user experience.

[0008] To achieve the above objectives, in a first aspect, this utility model discloses a cup-shaped heater, comprising:

[0009] An infrared heating tube, which generates infrared radiation to heat the material to be heated from the circumference when powered on.

[0010] A heating base is installed at the bottom of the infrared heating tube. When the heating base is powered on, it heats the material to be heated from the bottom.

[0011] In some embodiments, the infrared heating tube is connected to a first heating electrode pin, and the heating base is connected to a second heating electrode pin. The circuits of the first heating electrode pin and the second heating electrode pin are controlled independently.

[0012] In some embodiments, the heating base includes a base body and a resistance heating wire disposed within the base body.

[0013] In some embodiments, the base includes a bracket, a heating boss at the upper end of the bracket, and a insertion groove at the upper end of the bracket and located outside the heating boss. The heating boss has a receiving cavity to accommodate the resistive heating wire, and the bottom of the infrared heating tube is inserted into the insertion groove and sleeved on the outside of the heating boss.

[0014] In some embodiments, the top of the heating boss is provided with an arc-shaped protrusion or a pointed rod-shaped protrusion.

[0015] In some embodiments, the bottom of the infrared heating tube is provided with high-temperature resistant sealing rings on both the inner and outer sides of the insertion slot.

[0016] In some embodiments, the infrared heating tube is further fitted with a heat insulation tube.

[0017] In some embodiments, a tubular cigarette holder is also installed at the end of the infrared heating tube opposite to the heating base.

[0018] In some embodiments, the inner wall of the cigarette holder is provided with a plurality of cigarette support ribs axially, and an air inlet groove is formed between two of the cigarette support ribs.

[0019] Secondly, this utility model also discloses an aerosol generating device, which includes the aforementioned cup-shaped heater.

[0020] It should be understood that, within the scope of this utility model, the above-mentioned technical features of this utility model and the technical features specifically described below (such as embodiments) can be combined with each other to form new or preferred technical solutions. Due to space limitations, they will not be described in detail here.

[0021] The beneficial effects of this utility model are:

[0022] 1. The cup-shaped heater structure is adopted, which allows the heater to contact the circumference and bottom of the substance to be heated simultaneously. The large contact area allows for simultaneous heating of the bottom and circumference of the substance, resulting in a fast smoke emission speed for the aerosol generator, which can produce smoke in 3 to 5 seconds, greatly improving the user experience.

[0023] 2. The circumferential heating structure of the cup-shaped heater adopts an infrared heating tube. When the infrared heating tube is energized, it generates infrared rays, which then heat the material to be heated by infrared radiation. The infrared radiation can pass through the gaps between the materials to be heated and reach the center of the material to be heated, so that the periphery and center of the material to be heated can be heated evenly. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, 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 utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the structure of a cup-shaped heater according to Embodiment 1 of this utility model.

[0026] Figure 2 for Figure 1 Structural breakdown diagram.

[0027] Figure 3 for Figure 1 Cross-sectional view of the structure.

[0028] Figure 4 for Figure 3 A schematic diagram of a local structure.

[0029] Figure 5 This is a schematic diagram of the first embodiment of the heating base.

[0030] Figure 6 for Figure 5 Cross-sectional view of the structure.

[0031] Figure 7 This is a schematic diagram of the second embodiment of the heating base.

[0032] Figure 8 This is a schematic diagram of the structure of Embodiment 2 of the cup-shaped heater of this utility model.

[0033] Figure 9 for Figure 8 Cross-sectional view of the structure.

[0034] Figure 10 for Figure 8 A cross-sectional schematic diagram of the structure containing a cigarette.

[0035] Explanation of reference numerals in the attached figures:

[0036] 100-Heater, 10-Infrared heating element, 11-Electrode layer, 20-Heating base, 21-Seat, 211-Bracket, 2111-First annular wall, 2112-First top wall, 2113-Cavity, 212-Heating boss, 2121-Second annular wall, 2122-Second top wall, 213-Intercepting slot, 214-Accommodating cavity, 215-Protrusion, 216-Pin hole, 22-Resistant heating wire, 30-First Heating electrode pins, 31-first heating positive electrode pin, 32-first heating negative electrode pin, 40-second heating electrode pin, 41-second heating positive electrode pin, 42-second heating negative electrode pin, 50-high temperature resistant sealing ring, 51-inner sealing ring, 52-outer sealing ring, 60-heat sensitive layer, 70-heat insulation tube, 80-cigarette holder, 81-cigarette support rib, 82-air inlet groove, 200-cigarette. Detailed Implementation

[0037] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0038] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0039] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features.

[0040] The specific implementation method is as follows, please refer to it. Figures 1 to 3 This utility model proposes a cup-shaped heater 100, comprising:

[0041] An infrared heating tube 10, when energized, generates infrared radiation to heat the material to be heated circumferentially. In this embodiment, the infrared heating tube 10 can employ an existing structure, such as including a tubular transparent substrate and an infrared heating film sleeved on the substrate. The substrate can be made of materials such as glass or quartz tubes. An electrode layer 11 is provided on the infrared heating film, which is connected to an external circuit via leads. After being energized, the infrared heating film emits infrared rays to generate infrared radiation, thus non-combustibly heating and atomizing the material to be heated. The infrared heating film is generally made of materials such as stannous chloride, stannous tetrachloride, antimony trichloride, or bismuth trioxide. In this embodiment, the infrared heating tube 10 is an open-end, tubular structure with a hollow interior to accommodate the material to be heated. The material to be heated can be tobacco, tea leaves, or an existing cigarette 200, such as... Figure 10 As shown, the infrared heating tube 10 contains a cigarette 200 to be heated and atomized.

[0042] The cup-shaped heater 100 of this invention also includes a heating base 20, which is installed at the bottom end of the infrared heating tube 10. When the heating base 20 is energized, it heats the material to be heated from the bottom. The heating base 20 may contain heating elements such as a resistance wire or a heating plate, or it may also use an infrared heating element. The infrared heating tube 10 and the heating base 20 can be connected in various ways, such as by snap-fit ​​or plug-in connection.

[0043] After the heating base 20 is connected to the bottom of the infrared heating tube 10, it forms a structure as follows: Figure 3 The illustrated cup-shaped heater structure has an open upper end for the infrared heating element 10 and a closed lower end by the heating base 20. The upper end of the infrared heating element 10 is used to place the substance to be heated. Figure 3 and Figure 10 The cup-shaped heater 100 of this utility model, when placed in, such as Figure 10As shown in the diagram, the sidewalls of the cigarette 200 are wrapped by the infrared heating tube 10, and the bottom of the cigarette 200 is attached to the heating base 20. Compared to existing heaters, the cup-shaped heater 100 of this invention has contact with both the sidewalls and bottom wall of the cigarette 200, increasing the heating area. This allows for simultaneous circumferential and bottom heating of the cigarette 200, improving heating efficiency and increasing the atomization and smoke emission speed of the heated substance. The cup-shaped heater 100 of this invention can achieve rapid smoke emission in 3-5 seconds, avoiding the longer smoke emission waiting time and delays in existing technologies, greatly improving the user experience. Meanwhile, the circumferential heating part of the cup-shaped heater 100 of this utility model adopts an infrared heating tube 10. The infrared heating tube 10 can heat the material to be heated by infrared radiation. The infrared radiation can pass through the gaps between the materials to be heated and reach the center of the material to be heated. This makes the periphery and center of the material to be heated evenly, avoiding the phenomenon of uneven heating in the center and inside when existing heaters heat tobacco and other materials.

[0044] In this embodiment, the infrared heating tube 10 is connected to a first heating electrode pin 30, and the heating base 20 is connected to a second heating electrode pin 40. The circuits of the first heating electrode pin 30 and the second heating electrode pin 40 are controlled independently. This independent control allows for independent heating of the infrared heating tube 10 and the heating base 20. For example, only circumferential heating of the infrared heating tube 10 can be activated, or only bottom heating of the heating base 20 can be activated, or both circumferential and bottom heating can be activated simultaneously, or circumferential and bottom heating can be alternated. This can adapt to various heating and atomization requirements.

[0045] In this embodiment, the first heating electrode pin 30 includes a first heating positive electrode pin 31 and a first heating negative electrode pin 32. The first heating positive electrode pin 31 and the first heating negative electrode pin 32 are electrically connected to the electrode layer 11 on the infrared heating tube 10, allowing external power to be introduced into the infrared heating film on the infrared heating tube 10, so that the infrared heating film emits infrared rays after being energized. The second heating electrode pin 40 includes a second heating positive electrode pin 41 and a second heating negative electrode pin 42, which are electrically connected to the heating element in the heating base 20, allowing external power to be introduced into the heating element in the heating base 20, so that the bottom of the material to be heated is heated after the heating element is energized.

[0046] Specifically, such as Figure 2As shown, the heating base 20 in this embodiment includes a base 21 and a resistance heating wire 22 disposed within the base 21. After being energized, the resistance heating wire 22 conducts heat to the base 21, and then the base 21 heats the material to be heated on the top of the base 21 by means of heat conduction.

[0047] like Figures 4 to 6 As shown, the base 21 includes a bracket 211, a heating boss 212 disposed on the upper end of the bracket 211, and a insertion groove 213 disposed on the upper end of the bracket 211 and located outside the heating boss 212. The heating boss 212 is provided with a receiving cavity 214 to receive the resistive heating wire 22. The bottom of the infrared heating tube 10 is inserted into the insertion groove 213 and sleeved on the outside of the heating boss 212.

[0048] The bracket 211 is made of high-temperature resistant quartz material, such as... Figure 6 As shown, the structure includes a first annular wall 2111 and a first top wall 2112 disposed at the upper end of the first annular wall 2111. The first annular wall 2111 and the first top wall 2112 form a cavity 2113 with an opening at the lower end. A pin hole 216 is provided on the first top wall 2112 for the passage of a second heating positive electrode pin 41 and a second heating negative electrode pin 42. The second heating positive electrode pin 41 and the second heating negative electrode pin 42 are connected to a resistive heating wire 22 inside the accommodating cavity 214. At the same time, the second heating positive electrode pin 41 and the second heating negative electrode pin 42 pass through the cavity 2113.

[0049] The heating boss 212 is also made of high-temperature resistant quartz material, such as... Figure 6 As shown, the structure includes a second annular wall 2121 and a second top wall 2122 disposed at the upper end of the second annular wall 2121. The second annular wall 2121, the second top wall 2122, and the first top wall 2112 together form a receiving cavity 214 for placing the resistive heating wire 22. After the resistive heating wire 22 is placed into the receiving cavity 214 of the heating boss 212, the second heating positive electrode pin 41 and the second heating negative electrode pin 42 are connected to the resistive heating wire 22. Then, the heating boss 212 and the bracket 211 are welded together by sintering. At the same time, since the top of the first annular wall 2111 is higher than the first top wall 2112, a insertion groove 213 is formed on the outer side of the first annular wall 2111 and the heating boss 212 for inserting and connecting the infrared heating tube 10.

[0050] Preferably, such as Figure 4As shown, the bottom of the infrared heating tube 10 is provided with high-temperature resistant sealing rings 50 on both the inner and outer sides of the insertion groove 213. Specifically, the high-temperature resistant sealing rings 50 include an inner sealing ring 51 located inside the infrared heating tube 10 and an outer sealing ring 52 located outside the infrared heating tube 10. This provides double-layer protection for the sealing of the connection between the infrared heating tube 10 and the heating base 20, preventing air leakage and affecting its use.

[0051] As a way, such as Figure 5 and Figure 6 As shown, the top of the heating boss 212 is provided with an arc-shaped protrusion 215. In this way, based on the contact between the second top wall 2122 and the bottom of the material to be heated, the arc-shaped protrusion 215 can further protrude into the bottom of the material to be heated, making the contact at the bottom tighter and increasing the contact area at the bottom.

[0052] As another way, such as Figure 7 As shown, the top of the heating boss 212 is provided with a pointed protrusion 215. The pointed protrusion 215 can penetrate into the material to be heated from the bottom, which can fix the cigarette 200 waiting to be heated, and increase the contact area with the bottom of the material to be heated, thereby improving the heating effect.

[0053] Example 2, as follows Figure 8 and Figure 9 As shown, the difference between Embodiment 2 and Embodiment 1 is that the infrared heating tube 10 in Embodiment 2 is further fitted with a heat insulation tube 70. The heat insulation tube 70 can block the infrared heating tube 10 from radiating heat outward, preventing heat loss.

[0054] Preferably, the infrared heating tube 10 is covered with a heat-sensitive temperature layer 60, such as... Figure 9 As shown, the heat-sensitive layer 60 is located between the infrared heating tube 10 and the heat insulation tube 70, and covers the outer wall of the infrared heating tube 10. The heat-sensitive layer 60 can directly sense the temperature of the infrared heating film on the infrared heating tube 10, and then feed it back to the external control circuit.

[0055] Existing temperature sensing elements generally use thermocouples, point-type thermistors, etc. These elements make point contact with the heating element, measuring only a localized temperature. Temperatures in other areas of the heating element may be too high or too low to be measured, leading to inaccurate readings. This invention uses a heat-sensitive layer 60, which is a film covering the outer periphery of the infrared heating film. It makes surface contact with the infrared heating film and remains stable, thus ensuring accurate and stable temperature measurement. Preferably, in this embodiment, the heat-sensitive layer 60 is a sheet-like thin-film PTC thermistor.

[0056] Better, such as Figure 8 and Figure 9 As shown, a tubular cigarette holder 80 is also installed at the end of the infrared heating tube 10 opposite to the heating base 20. Figure 10 As shown, the cigarette holder 80 can support and fix the upper part of the cigarette 200. The connection between the cigarette holder 80 and the upper end of the infrared heating tube 10 is also sealed.

[0057] Furthermore, the inner wall of the cigarette holder 80 is axially provided with multiple cigarette support ribs 81, and an air inlet groove 82 is formed between two of the cigarette support ribs 81. The cigarette support ribs 81 can clamp the upper end of the cigarette 200 placed in the infrared heating tube 10 and the cigarette holder 80, while the air inlet groove 82 can ensure that external air enters from the upper end of the cigarette holder 80 into the infrared heating tube 10 and the upper end of the heating base 20. In the design process, the inner diameter of the infrared heating tube 10 is slightly larger than the outer diameter of the cigarette 200, so that air can smoothly enter the contact position between the bottom of the cigarette 200 and the heating base 20 to ensure smooth suction.

[0058] This utility model also discloses an aerosol generating device (not shown), including the cup-shaped heater 100 disclosed above. Since this aerosol generating device includes the cup-shaped heater 100 described above, it has the functions and effects of the cup-shaped heater 100 of this utility model, which will not be described in detail here.

[0059] The cup-shaped heater 100 and aerosol generating device of this invention use an infrared heating tube 10 as a circumferential heating element and installs a heating base 20 at the bottom of the infrared heating tube 10 for bottom heating. In this way, the cup-shaped heater 100 of this invention can simultaneously heat the bottom and circumference of the substance to be heated, so that smoke can be emitted in 3 to 5 seconds, which greatly speeds up the smoke emission. At the same time, the circumferential heating structure of the cup-shaped heater 10 uses an infrared heating tube 10, which can penetrate the gaps between the substances to be heated by infrared radiation and reach the center of the substances to be heated directly, so that the periphery and center of the substances to be heated can be heated evenly.

[0060] The above description is merely an example to clearly illustrate the present utility model and is not intended to limit the patent scope of the present utility model. It is impossible to exhaustively list all the embodiments here. All equivalent structural transformations made using the content of the technical solution of the present utility model under the concept of the present utility model, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A cup-shaped heater, characterized in that, include: An infrared heating tube, which generates infrared radiation to heat the material to be heated from the circumference when powered on. A heating base is installed at the bottom of the infrared heating tube. When the heating base is powered on, it heats the material to be heated from the bottom.

2. The cup-shaped heater according to claim 1, characterized in that, The infrared heating tube is connected to a first heating electrode pin, and the heating base is connected to a second heating electrode pin. The circuits of the first heating electrode pin and the second heating electrode pin are controlled independently.

3. The cup-shaped heater according to claim 1, characterized in that, The heating base includes a base body and a resistance heating wire disposed within the base body.

4. The cup-shaped heater according to claim 3, characterized in that, The base includes a bracket, a heating boss at the upper end of the bracket, and a insertion groove at the upper end of the bracket and located outside the heating boss. The heating boss has a receiving cavity to accommodate the resistive heating wire. The bottom of the infrared heating tube is inserted into the insertion groove and sleeved on the outside of the heating boss.

5. The cup-shaped heater according to claim 4, characterized in that, The top of the heating boss is provided with an arc-shaped protrusion or a pointed rod-shaped protrusion.

6. The cup-shaped heater according to claim 4, characterized in that, The bottom of the infrared heating tube is provided with high-temperature resistant sealing rings on both the inner and outer sides of the insertion slot.

7. The cup-shaped heater according to claim 1, characterized in that, The infrared heating tube is also covered with a heat insulation tube.

8. The cup-shaped heater according to claim 1, characterized in that, A tubular cigarette holder is also installed at the end of the infrared heating tube opposite to the heating base.

9. The cup-shaped heater according to claim 8, characterized in that, The inner wall of the cigarette holder is provided with multiple cigarette support ribs axially, and an air inlet groove is formed between two of the cigarette support ribs.

10. An aerosol generating device, characterized in that, Includes the cup-shaped heater as described in any one of claims 1-9.

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