Heat-not-burn device with external high conductivity performance

Abstract

This application relates to the technical field of smoking articles, and provides a heat-not-burn device with high external conductivity, comprising a base, a cigarette-holding tube, a gas-liquid phase-change heat pipe, and a heater; the cigarette-holding tube is used to hold tobacco, and is disposed on the base. The outer surface of the cigarette-holding tube is provided with a mounting groove extending axially along the cigarette-holding tube; the gas-liquid phase-change heat pipe includes an evaporation zone, a convection zone, and a condensation zone, and is disposed in the mounting groove, where the gas-liquid phase-change heat pipe is in contact with the surface of the mounting groove; the heater is disposed on the base and is used to heat the evaporation zone. This application solves the problem that existing heat-not-burn smoking articles have a slow heating rate and cannot evenly heat tobacco.

Description

Technical Field

[0001] The present application relates to the technical field of smoking articles, and in particular to a heat-not-burn device with high external conductivity. Background Art

[0002] Existing heat-not-burn smoking devices include a heating chamber with a heating needle made of metal material in the center of the heating chamber. A heating source is set at the bottom of the heating chamber, and the heating needle is placed on the upper surface of the heating source. When the heating source is energized, heat is generated. The heat is transferred to the heating needle and conducted upward along the heating needle to heat the tobacco in the heating chamber; or the heating source is set inside the heating needle. When the heating source is energized, heat is generated, and the heat flows on the heating needle through metal conduction. The above-mentioned heating method of heat conduction through metal has the following disadvantages: 1. The heat conduction rate is slow; 2. Since the heating needle is in direct contact with the tobacco, it is easy to cause heat loss during the conduction process. Finally, too little heat reaches the top of the heating needle, resulting in too little heat on the upper part of the tobacco, or the upper part of the tobacco cannot be heated. The temperature at the bottom of the heating needle is very high, but the temperature at the top of the heating needle is very low, causing the tobacco at the bottom to burn, while the tobacco at the top has not been heated and atomized, and the aroma has not evaporated. Summary of the Invention

[0003] The embodiments of the present application provide a heat-not-burn device with high external conductivity, which solves the problem that existing heat-not-burn smoking devices have a slow heating rate and cannot heat tobacco evenly.

[0004] The present invention is achieved as follows: a heating-without-combustion device with high external conductivity performance includes a base, a cigarette holding tube, a gas-liquid phase change heat pipe and a heater; the cigarette holding tube is used to hold tobacco, the cigarette holding tube is arranged on the base, and the outer surface of the cigarette holding tube is provided with a mounting groove extending along the axial direction of the cigarette holding tube; the gas-liquid phase change heat pipe includes an evaporation area, a convection area and a condensation area, the gas-liquid phase change heat pipe is arranged in the mounting groove, and the gas-liquid phase change heat pipe is in contact with the surface of the mounting groove; the heater is arranged on the base, and the heater is used to heat the evaporation area.

[0005] According to the heating-without-combustion device with high external conductivity provided in the embodiment of the present application, the evaporation zone of the gas-liquid phase change heat pipe is heated by a heater, so that heat circulates in the gas-liquid phase change heat pipe. Since the gas-liquid phase change heat pipe is in contact with the surface of the cigarette holding tube, the gas-liquid phase change heat pipe will transfer heat to the tobacco through the cigarette holding tube to heat all parts of the tobacco at a uniform temperature; and since the thermal conductivity coefficient of the gas-liquid phase change heat pipe is relatively high, the use of the gas-liquid phase change heat pipe can quickly heat the tobacco, thereby improving the heating efficiency.

[0006] In one embodiment, the heater is located inside the cigarette holding tube and contacts the inner side of the cigarette holding tube;

[0007] The heater is used to conduct heat through the cigarette holding tube to heat the evaporation zone of the gas-liquid phase change heat tube.

[0008] In one embodiment, a groove is provided in the mounting slot, and the heater is disposed in the groove;

[0009] The heater contacts the evaporation region of the gas-liquid phase change heat pipe to heat the evaporation region of the gas-liquid phase change heat pipe.

[0010] In one embodiment, the heater is in contact with the evaporation zone of the gas-liquid phase change heat pipe away from the surface of the cigarette receiving tube, and the heater is used to heat the evaporation zone of the gas-liquid phase change heat pipe.

[0011] In one embodiment, the heater is in the shape of a circular tube or an arc-shaped sheet.

[0012] In one embodiment, the length of the mounting groove is equal to the length of the cigarette accommodating tube.

[0013] In one embodiment, the bottom of the mounting groove is a curved surface coaxial with the cigarette receiving tube;

[0014] The gas-liquid phase change heat pipe is in the shape of an arc-shaped flat sheet. The inner arc surface of the gas-liquid phase change heat pipe fits the bottom of the installation groove. The diameter of the circle where the outer arc surface of the gas-liquid phase change heat pipe is located is equal to the outer diameter of the cigarette receiving tube.

[0015] In one embodiment, the base has an air flow channel connecting the cigarette receiving tube and the outside.

[0016] In one embodiment, the base includes a fixing seat and an airflow channel member;

[0017] Both ends of the fixing seat are open;

[0018] The airflow channel component is detachably mounted on the fixing seat. The airflow channel component includes a plurality of airflow channels, and the airflow channels are used to connect the cigarette accommodating tube with the outside world.

[0019] In one embodiment, the airflow channel member includes a cylindrical mounting tube and a plurality of radially distributed partitions extending from an outer side of the cylindrical mounting tube;

[0020] An annular step is provided on the inner side surface of the fixing seat, and the plurality of partitions are placed on the annular step;

[0021] Along the radial direction of the cylindrical mounting tube, the width of the partition is greater than the width of the annular step, and an air flow channel is formed between two adjacent partitions.

[0022] In one embodiment, the heat-not-burn device further includes a heat-insulating tube, which is disposed on the fixing seat and sleeved on the outer periphery of the cigarette receiving tube.

[0023] In one embodiment, the heating without burning device further includes an outer shell, which is sleeved on the outer circumference of the insulation tube.

[0024] The beneficial effect of the heating-without-combustion device with high external conductivity provided by the present application is that: compared with the existing technology, the present application heats the evaporation zone of the gas-liquid phase change heat pipe through a heater. Since the gas-liquid phase change heat pipe is in contact with the surface of the cigarette holding tube and extends along the axial direction of the cigarette holding tube, the gas-liquid phase change heat pipe will transfer heat to the tobacco through the cigarette holding tube, thereby heating the tobacco. Since the thermal conductivity coefficient of the gas-liquid phase change heat pipe is relatively high, the use of the gas-liquid phase change heat pipe can quickly heat the tobacco and improve the heating efficiency; when the evaporation zone of the gas-liquid phase change heat pipe is heated, circulating heat will be formed in the gas-liquid phase change heat pipe to keep the temperature of the entire gas-liquid phase change heat pipe uniform, so that the gas-liquid phase change heat pipe can heat each position of the tobacco at a uniform temperature, ensuring that the user's taste remains consistent during the gradual atomization of the tobacco. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is an exploded view of a heat-without-combustion device with high external conductivity provided in Example 1 of the present application;

[0026] Figure 2 This is a cross-sectional view of a heat-without-combustion device with high external conductivity provided in Example 1 of the present application;

[0027] Figure 3 This is a cross-sectional view of a heat-without-combustion device with high external conductivity provided in Example 2 of the present application;

[0028] Figure 4 This is an exploded view of a cylindrical heater of a heating-without-combustion device with external high conductivity provided in Example 3 of the present application;

[0029] Figure 5 This is an exploded view of a heater in the form of an arc-shaped sheet of a heating-without-combustion device with external high conductivity provided in Example 3 of the present application;

[0030] Figure 6 This is a cross-sectional view of a heat-without-combustion device with high external conductivity provided in Example 3 of the present application;

[0031] Figure 7 Schematic diagram of the airflow channel of the heat-without-combustion device with external high-conductivity provided in Examples 1 to 3 of the present application;

[0032] Figure 8 This is an overall structural diagram of a heat-not-burn device with high external conductivity provided in Examples 1 to 3 of the present application;

[0033] Figure 9 This is the principle structure diagram of the gas-liquid phase change heat pipe;

[0034] Figure 10 It is a schematic diagram of heat flow in a gas-liquid phase change heat pipe;

[0035] Figure 11 It is a schematic diagram of the gas-liquid circulation in the gas-liquid phase change heat pipe.

[0036] Reference numerals: 10, base; 100, tobacco; 101, air flow channel; 11, fixing seat; 12, air flow channel member; 121, cylindrical mounting tube; 122, partition;

[0037] 20. Cigarette storage tube; 21. Installation slot;

[0038] 30. Gas-liquid phase change heat pipe; 301. tube body; 302. capillary structure layer; 303. phase change liquid;

[0039] 40. Heater;

[0040] 50. Insulation pipe;

[0041] 60. Shell. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention 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 only used to explain the present invention and are not intended to limit the present invention.

[0043] It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element.

[0044] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and 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, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0045] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0046] It should also be noted that, in the embodiments of the present application, the same figure mark represents the same component or the same part. For the same parts in the embodiments of the present application, the figure may only mark one of the parts or components as an example. It should be understood that the figure mark also applies to other identical parts or components.

[0047] The embodiments of the present application provide a heat-not-burn device with high external conductivity, which solves the problem that existing heat-not-burn smoking devices have a slow heating rate and cannot heat tobacco evenly.

[0048] Example 1

[0049] refer to Figure 1-Figure 2 The heat-not-burn device with high external conductivity provided in the embodiment of the present application includes a base 10, a cigarette accommodating tube 20, a gas-liquid phase change heat pipe 30 and a heater 40; the cigarette accommodating tube 20 is used to accommodate tobacco 100, and the cigarette accommodating tube 20 is arranged on the base 10. The outer surface of the cigarette accommodating tube 20 is provided with a mounting groove 21 extending axially along the cigarette accommodating tube 20; the gas-liquid phase change heat pipe 30 includes an evaporation area, a convection area and a condensation area, and the gas-liquid phase change heat pipe 30 is arranged in the mounting groove 21, and the gas-liquid phase change heat pipe 30 is in contact with the surface of the mounting groove 21; the heater 40 is arranged on the base 10, and the heater 40 is used to heat the evaporation area of the gas-liquid phase change heat pipe 30.

[0050] Specifically, the gas-liquid phase change heat pipe 30 in the embodiment of the present application utilizes the principle of heat conduction and the rapid heat transfer properties of the phase change medium to quickly transfer the heat of the heating object to the outside of the heat source through the heat pipe. Its thermal conductivity exceeds that of any known metal.

[0051] refer to Figure 9The gas-liquid phase change heat pipe 30 generally includes a sealed tube body 301 and a capillary structure layer 302 arranged close to the inner wall of the tube body 301. The capillary structure layer 302 stores a phase change liquid 303. The gas-liquid phase change heat pipe 30 is divided into an evaporation section (evaporation zone), a convection section (convection zone) and a condensation section (condensation zone) which are connected in sequence. Figure 10-11 The phase change liquid 303 is adsorbed by the capillary structure layer 302. When the external temperature changes slightly, the phase change liquid 303 adheres to the capillary structure layer 302. When a part of the gas-liquid phase change heat pipe 30 is heated, heat is transmitted to the heated part, making the internal temperature of the gas-liquid phase change heat pipe 30 higher and higher until the phase change liquid 303 inside it vaporizes and forms steam. This area is the evaporation area. Due to the generation of steam, the pressure in the evaporation area increases, squeezing the steam to other areas, causing the steam to flow. The area through which the steam flows is the convection area. After passing through the convection area, the steam finally reaches another area of the gas-liquid phase change heat pipe 30, which is the condensation area. After the steam in the gas-liquid phase change heat pipe 30 enters the condensation area, the temperature drops, heat is released and liquefied to form a phase change liquid 303. In this way, the heat introduced into the gas-liquid phase change heat pipe 30 is transmitted to the unheated part of the gas-liquid phase change heat pipe 30 as the liquid-gas conversion inside the gas-liquid phase change heat pipe 30 is carried out, and diffused out of the gas-liquid phase change heat pipe 30 as the gas-liquid conversion is carried out. Figure 10 The figure shows a schematic diagram of heat flow in a gas-liquid phase change heat pipe. As the phase change liquid 303 in the evaporation zone turns into steam, a negative pressure is formed in the capillary structure layer 302 in this area, and the phase change liquid 303 in the capillary structure layer 302 in the adjacent area is sucked into the evaporation zone. Ultimately, a steam flow path is formed from the evaporation zone to the convection zone and then to the condensation zone, and a phase change liquid 303 flow path is formed from the condensation zone to the convection zone and then to the evaporation zone, forming a closed liquid-vapor cycle. Figure 11 The figure shows a schematic diagram of gas-liquid circulation in the gas-liquid phase change heat pipe. This circulation process enables the gas-liquid phase change heat pipe 30 to quickly transfer heat in a desired manner and direction.

[0052] It should be noted that Figures 9-11 The figures shown are used to explain the working principle of the gas-liquid phase change heat pipe 30. The shape of the gas-liquid phase change heat pipe in the embodiment of the present application is not limited to Figures 9-11 The shape of the gas-liquid phase change heat pipe shown in FIG.

[0053] The gas-liquid phase change heat pipe 30 used in the embodiment of the present application is a medium temperature (150-300° C.) micro heat pipe.

[0054] It should be noted that the heater 40 is used to generate heat, and the heater 40 may generate heat by resistive heating, electromagnetic induction heating, ignition heating, microwave heating, etc.

[0055] It can be understood that the gas-liquid phase change heat pipe 30 in the embodiment of the present application heats the tobacco 100 by transferring the heat released by the gas-liquid phase change heat pipe 30 to the tobacco 100 through the cigarette holding tube 20. Therefore, the cigarette holding tube 20 needs to have a good heat conduction function. Specifically, the cigarette holding tube 20 can be made of a metal with good heat conduction performance. Furthermore, when the mounting groove 21 is set on the outer surface of the cigarette holding tube 20, the depth of the mounting groove 21 can be set slightly larger. In this way, the distance between the bottom of the mounting groove 21 and the inner side surface of the cigarette holding tube 20 will become smaller, which is equivalent to the distance between the gas-liquid phase change heat pipe 30 and the inner side surface of the cigarette holding groove becoming smaller. In this way, the distance between the tobacco 100 and the gas-liquid phase change heat pipe 30 can be reduced, so that the gas-liquid phase change heat pipe 30 can transfer heat to the tobacco 100 more efficiently and heat it more efficiently.

[0056] The heating-not-burning device with high external conductivity provided by the embodiment of the present application is different from the prior art. The heater 40 does not directly heat the tobacco 100, but first heats the evaporation zone of the gas-liquid phase change heat pipe 30 through the heater 40. When the evaporation zone of the gas-liquid phase change heat pipe 30 is heated, heat is transmitted, and the phase change liquid 303 in this part of the gas-liquid phase change heat pipe 30 is heated and converted into steam and flows to the condensation zone of the gas-liquid phase change heat pipe 30. After the steam in the gas-liquid phase change heat pipe 30 enters the condensation zone, the temperature drops, and the heat is released to become the phase change liquid 303. In this way, the heat will be quickly dissipated from the condensation zone of the gas-liquid phase change heat pipe 30 and transferred to the tobacco 100. The gas-liquid phase change heat pipe 30 now assumes the function of transferring heat. The gas-liquid phase change heat pipe 30 transfers heat very quickly and the efficiency is very high. The gas-liquid phase change heat pipe 30 can be used to quickly heat the tobacco 100 and evaporate the aroma in the tobacco 100. Since heat flows continuously in the gas-liquid phase change heat pipe 30, the temperature at various positions of the gas-liquid phase change heat pipe 30 can be basically consistent. The gas-liquid phase change heat pipe 30 in the embodiment of the present application is attached to the outer surface of the cigarette holding tube 20 and extends along the axial direction of the cigarette holding tube 20. In this way, the gas-liquid phase change heat pipe 30 can transfer heat to various positions of the tobacco 100 through the cigarette holding tube 20, thereby heating various positions of the tobacco 100 at a uniform temperature, so that the taste of the tobacco 100 when the user inhales can remain consistent during the gradual atomization process.

[0057] refer to Figure 1-Figure 2 The heater 40 in the first embodiment of the present application is located inside the cigarette receiving tube 20 and contacts the inner side surface of the cigarette receiving tube 20; the heater 40 is used to conduct heat through the cigarette receiving tube 20 to heat the evaporation zone of the gas-liquid phase change heat tube 30.

[0058] It should be noted that in the first embodiment of the present application, the heater 40 is disposed within the cigarette receiving tube 20 and in contact with the inner surface of the cigarette receiving tube 20. Since the gas-liquid phase change heat tube 30 is in contact with the outer surface of the cigarette receiving tube 20, the heat generated by the heater 40 is transferred through the cigarette receiving tube 20 to the evaporation zone of the gas-liquid phase change heat tube 30. Specifically, the portion of the heater 40 in contact with the inner surface of the cigarette receiving tube 20 and the portion of the evaporation zone of the gas-liquid phase change heat tube 30 in contact with the outer surface of the cigarette receiving tube 20 overlap in the radial direction of the cigarette receiving tube 20. This ensures that the heat generated by the heater 40 is transferred to the evaporation zone of the gas-liquid phase change heat tube 30 along the radial direction of the cigarette receiving tube 20, thereby improving the heating efficiency of the gas-liquid phase change heat tube 30.

[0059] In the first embodiment of the present application, the heater 40 is in the shape of a circular tube or an arc-shaped sheet. When the heater 40 is in the shape of a circular tube, the heater 40 is fitted with a gap between the cigarette receiving tube 20, and the gap is zero. In this way, the heater 40 will be completely in contact with the inner side surface of the cigarette receiving tube 20 in the circumferential direction. At this time, no matter in which direction the gas-liquid phase change heat pipe 30 is set on the outer surface of the cigarette receiving tube 20, the heater 40 can transfer the heat it generates to the evaporation zone of the gas-liquid phase change heat pipe 30 along the radial direction of the cigarette receiving tube 20. In this way, there are no special requirements for the installation direction of the heater 40, which reduces the difficulty of installation. When the heater 40 is in the shape of an arc sheet, the outer arc surface of the heater 40 fits into the inner side surface of the cigarette holding tube 20. The number of heaters 40 needs to be consistent with the number of gas-liquid phase change heat tubes 30, and the setting position of the heater 40 inside the cigarette holding tube 20 also needs to be kept relative to the setting position of the evaporation zone of the gas-liquid phase change heat tube 30 on the outer side surface of the cigarette holding tube 20. In this way, the evaporation zone of each gas-liquid phase change heat tube 30 can be heated, and heat can be transferred to the tobacco 100 from different directions of the cigarette holding tube 20, which greatly improves the speed at which the tobacco 100 is heated. The tobacco 100 is quickly heated, and the user's smoking experience can also be improved.

[0060] Example 2

[0061] refer to Figure 3 In the second embodiment of the present application, a groove is provided in the mounting groove 21, and the heater 40 is arranged in the groove; the heater 40 contacts the heating end of the gas-liquid phase change heat pipe 30 to heat the evaporation zone of the gas-liquid phase change heat pipe 30.

[0062] It should be noted that, in the second embodiment of the present application, a groove is provided in the mounting groove 21, and the heater 40 is provided in the groove, so that the heater 40 is located between the gas-liquid phase change heat pipe 30 and the cigarette holding tube 20. Specifically, when setting the position of the groove, it is necessary to ensure that the heater 40 installed in the groove can contact the evaporation zone of the gas-liquid phase change heat pipe 30, so that the heater 40 can directly contact the evaporation zone of the gas-liquid phase change heat pipe 30 to heat the evaporation zone of the gas-liquid phase change heat pipe 30. Compared with the above-mentioned embodiment 1 in which the evaporation zone of the gas-liquid phase change heat pipe 30 is heated by transferring heat through the cigarette holding tube 20, the heater 40 in the second embodiment of the present application is in direct contact with the evaporation zone of the gas-liquid phase change heat pipe 30 for heating. This can further increase the speed at which the evaporation zone of the gas-liquid phase change heat pipe 30 is heated, thereby ensuring that the tobacco 100 can be quickly heated and heated.

[0063] In the second embodiment of the present application, the heater 40 is in the form of an arc-shaped sheet. After the heater 40 is installed in the groove, the outer arc surface of the heater 40 is aligned with the bottom of the mounting groove 21, forming a smooth surface. This allows the outer arc surface of the heater 40 to contact the evaporation zone of the gas-liquid phase change heat pipe 30. The number of heaters 40 provided in the second embodiment of the present application needs to be consistent with the number of gas-liquid phase change heat pipes 30 provided. This ensures that the evaporation zone of each gas-liquid phase change heat pipe 30 can be heated, and heat can be transferred to the tobacco 100 from different directions of the cigarette holding tube 20, greatly increasing the speed at which the tobacco 100 is heated. The tobacco 100 is quickly heated, and the user's smoking experience is also improved.

[0064] Example 3

[0065] refer to Figure 4-Figure 6 The heater 40 is attached to the evaporation area of the gas-liquid phase change heat pipe 30 away from the surface of the cigarette receiving tube 20, and the heater 40 is used to heat the evaporation area of the gas-liquid phase change heat pipe 30.

[0066] It should be noted that the heater 40 in Example 3 of the present application is in contact with the evaporation zone of the gas-liquid phase change heat pipe 30 away from the surface of the cigarette holding tube 20, so that the heat generated by the heater 40 will be directly transmitted to the evaporation zone of the gas-liquid phase change heat pipe 30, greatly improving the heating efficiency of the gas-liquid phase change heat pipe 30, thereby ensuring that the tobacco 100 can be quickly heated and heated.

[0067] In the third embodiment of this application, reference Figure 4The heater 40 is in the shape of a circular tube. When the heater 40 is fitted with the cigarette receiving tube 20 with a clearance of zero, the evaporation zone of the gas-liquid phase change heat pipe 30 will contact the inner side of the heater 40. At this time, no matter which direction the gas-liquid phase change heat pipe 30 is set on the outer side of the cigarette receiving tube 20, the heater 40 can directly transfer the heat it generates to the evaporation zone of the gas-liquid phase change heat pipe 30. In this way, there are no special requirements for the installation direction of the heater 40, which reduces the difficulty of installation. Figure 5 The heater 40 is in an arc-shaped sheet shape, and the inner arc surface of the heater 40 is in contact with the outer arc surface of the gas-liquid phase change heat pipe 30 to heat the evaporation zone of the gas-liquid phase change heat pipe 30.

[0068] Optionally, the heater 40 in the third embodiment of the present application can adopt a coated heating or silk-screened resistor, and the heater 40 can be coated on the outer side of the evaporation zone of the gas-liquid phase change heat pipe 30, so as to achieve the purpose of directly heating the evaporation zone of the gas-liquid phase change heat pipe 30.

[0069] Optionally, the number of gas-liquid phase change heat tubes 30 can be one or more. In the above-mentioned embodiments one to three, the number of gas-liquid phase change heat tubes 30 is set to two, and the two gas-liquid phase change heat tubes 30 are symmetrically arranged about the central axis of the cigarette holding tube 20. In this way, the tobacco 100 can be heated from two directions respectively, thereby improving the heating temperature rise rate of the tobacco 100, without increasing the cost due to the arrangement of more gas-liquid phase change heat tubes 30.

[0070] In the above-mentioned embodiments 1 to 3, reference is made to Figure 1 The length of the mounting groove 21 is equal to the length of the cigarette receiving tube 20 .

[0071] It should be noted that the cigarette holding tube 20 is used to hold tobacco 100, so setting the length of the mounting groove 21 to be equal to the length of the cigarette holding tube 20 is equivalent to selecting a gas-liquid phase change heat tube 30 that matches the length of the cigarette holding tube 20. In this way, the evaporation zone of the gas-liquid phase change heat tube 30 corresponds to the tail of the tobacco 100, and the condensation zone of the gas-liquid phase change heat tube 30 corresponds to the top of the tobacco 100. When the evaporation zone of the gas-liquid phase change heat tube 30 is heated, the condensation zone of the gas-liquid phase change heat tube 30 will transfer heat to the tobacco 100 through the cigarette holding tube 20, so that the top of the tobacco 100 away from the heater 40 can also be heated. In this way, during the process of continuous heating and atomization of the tobacco 100, each position of the tobacco 100 can be heated at a uniform temperature, so that the aroma concentration generated by the atomization of each position of the tobacco 100 is consistent, and the user's taste of smoking is consistent, and the smoking experience is stronger.

[0072] In the above-mentioned embodiments 1 to 3, reference is made to Figure 1The bottom of the mounting groove 21 is an arc surface coaxial with the cigarette receiving tube 20; the gas-liquid phase change heat pipe 30 is an arc-shaped flat sheet, the inner arc surface of the gas-liquid phase change heat pipe 30 is in contact with the bottom of the mounting groove 21, and the diameter of the circumference of the outer arc surface of the gas-liquid phase change heat pipe 30 is equal to the outer diameter of the cigarette receiving tube 20.

[0073] It should be noted that an arc-shaped flat sheet-like gas-liquid phase change heat pipe 30 is used in the embodiment of the present application, and the bottom of the mounting groove 21 is set to an arc surface coaxial with the cigarette holding tube 20. In this way, the distance between the inner arc surface at each position of the gas-liquid phase change heat pipe 30 and the inner side surface of the cigarette holding tube 20 can be kept consistent, so that the rate of heat transfer from the gas-liquid phase change heat pipe 30 to the inside of the cigarette holding tube 20 at each position can be kept consistent, so that the heating rate at each position of the tobacco 100 can be kept consistent, so that the tobacco 100 can maintain a uniform temperature, the evaporated aroma concentration is basically consistent, and the user's smoking experience is improved.

[0074] In the above-mentioned embodiments 1 to 3, reference is made to Figure 7 The base 10 has an air flow channel 101 connecting the cigarette receiving tube 20 and the outside.

[0075] It can be understood that the base 10 of the embodiment of the present application has an air flow channel 101 connecting the cigarette holding tube 20 and the outside world, so that the external gas can be transmitted upward through the air flow channel 101, enter the cigarette holding tube 20, flow upward from the tobacco 100, flow out from the upper part of the tobacco 100, and enter the oral cavity. In this way, not only can the aroma generated by the heated and atomized tobacco 100 flow into the oral cavity along with the gas, enhancing the user's smoking taste, but the air flow channel 101 between the cigarette holding tube 20 and the outside world also makes it easier for users to smoke cigarettes. In addition, since the heating-not-burning device with high external conductivity in the embodiment of the present application heats the tobacco 100 to generate smoke, the temperature of the smoke at this time is relatively high and is not suitable for the user to inhale directly. It is necessary to wait for a certain period of time before inhaling, which can easily reduce the user's experience. The setting of the airflow channel 101 in the embodiment of the present application allows the user to introduce low-temperature external air when inhaling the smoke atomized from the tobacco 100, which can cool the high-temperature smoke. The user can inhale the smoke from the tobacco 100 at any time without waiting, and the experience is stronger.

[0076] In the above-mentioned embodiments 1 to 3, reference is made to Figures 1-6 The base 10 includes a fixing seat 11 and an air flow channel member 12; both ends of the fixing seat 11 are open; the air flow channel member 12 is detachably arranged on the fixing seat 11, and the air flow channel member 12 includes a plurality of air flow channels 101, which are used to connect the cigarette holding tube 20 and the outside world.

[0077] It should be noted that the heater 40 of the present application is arranged on the base 10, specifically on the fixed seat 11. In this way, when the heater 40 is turned on to generate heat, the temperature of the fixed seat 11 will also increase. In this way, the user may be burned when holding the heating-not-burning device with high external conductivity of the embodiment of the present application. Therefore, the fixed seat 11 can be made of insulating material, or a thermal insulation layer can be provided on the outer periphery of the fixed seat 11. It can not only play the role of insulation to prevent the user from touching the fixed seat 11 and being burned, but also play the role of heat preservation to prevent the heat generated by the heater 40 from dissipating from the fixed seat 11, resulting in the inability to quickly heat the gas-liquid phase change heat pipe 30.

[0078] It can be understood that the fixing seat 11 or the insulation layer can be made of insulation materials. The insulation materials mainly refer to materials or material composites with insulating properties that can shield heat flow. They are usually light, loose, porous, and have low thermal conductivity. They are widely used in industry to prevent heat loss in thermal equipment and pipelines, or are used under freezing and low temperature conditions. Therefore, they are also called thermal insulation or cold insulation materials.

[0079] Specifically, the fixing seat 11 of the present application can be a structure in which two circular tubes are connected together, wherein the inner diameters of the two circular tubes are the same and the outer diameters are different, and the setting position of the heater 40 inside the fixing seat 11 is located in the circular tube with smaller outer diameter or in the circular tube with smaller outer diameter and the circular tube with larger outer diameter. In this way, at least a part of the circular tube with larger outer diameter of the fixing seat 11 is hollow, and its temperature is very low. Moreover, the wall thickness of the circular tube with larger outer diameter is also thicker, which further improves the heat insulation effect of the fixing seat 11, and the user will not be burned when holding it. Moreover, the part of the fixing seat 11 that does not contact the heater 40 will facilitate the passage of outside air into the cigarette holding tube 20.

[0080] The airflow channel member 12 is detachably mounted on the fixing base 11 and is specifically disposed within the fixing base 11. In the first embodiment of the present application, the airflow channel member 12 is located within the heater 40 and abuts the inner side of the heater 40, thereby supporting the tobacco 100 and facilitating the passage of outside air into the cigarette receiving tube 20. In the second and third embodiments of the present application, the airflow channel member 12 is located within the cigarette receiving tube 20 and abuts the inner side of the cigarette receiving tube 20. The airflow channel member 12 includes a plurality of airflow channels 101, which allow outside air to evenly enter the tobacco 100 when the user smokes the tobacco 100, carrying the aroma generated by the atomized tobacco 100 into the user's mouth, thereby enhancing the user's taste of the tobacco 100. Furthermore, the even entry of outside air into the tobacco 100 also uniformly cools the high-temperature tobacco, effectively improving the user's smoking experience.

[0081] In the above-mentioned embodiments 1 to 3, reference is made to Figure 1 、 Figure 4-Figure 5 The air flow channel member 12 includes a cylindrical mounting tube 121 and a plurality of radially distributed partitions 122 extending from the outer side surface of the cylindrical mounting tube 121; an annular step is provided on the inner side surface of the fixing seat 11, and a plurality of partitions 122 are placed on the annular step; along the radial direction of the cylindrical mounting tube 121, the width of the partition 122 is greater than the width of the annular step, and an air flow channel 101 is formed between two adjacent partitions 122.

[0082] Specifically, the airflow channel member 12 in the present application includes a cylindrical mounting tube 121 and a plurality of radially distributed partitions 122 extending from the outer side surface of the cylindrical mounting tube 121, wherein the cylindrical mounting tube 121 can be a structure with both ends open or a structure with both ends closed. If both ends are open, the cylindrical mounting tube 121 will also become an airflow channel 101 for external air to enter the cigarette holding tube 20.

[0083] The airflow channel member 12 is disposed within the fixing base 11. Specifically, an annular step is provided on the inner side of the fixing base 11, and the multiple partitions 122 of the airflow channel member 12 are placed on the annular step. In order to make the airflow channel member 12 more stable and less likely to move, a plurality of slots corresponding to the multiple partitions 122 can be provided on the annular step. In this way, the multiple partitions 122 can be inserted into the slots in a one-to-one correspondence to fix the airflow channel member 12. It should be noted that along the radial direction of the cylindrical mounting tube 121, the width of the partition 122 is greater than the width of the annular step. This ensures that the annular step does not completely block the gap between two adjacent partitions 122, and that an airflow channel 101 connecting the outside world and the cigarette holding tube 20 is formed between the two adjacent partitions 122, ensuring that external gas enters the cigarette holding tube 20 from the airflow channel 101, thereby improving the user's experience of smoking tobacco 100.

[0084] The airflow channel schematic diagrams in Examples 1 to 3 of the present application can be referred to Figure 7 .

[0085] In the above-mentioned embodiments 1 to 4, reference is made to Figures 1-6 The heat-not-burn device with high external conductivity also includes an insulation tube 50 , which is disposed on the fixing seat 11 and sleeved on the outer periphery of the cigarette receiving tube 20 .

[0086] It should be noted that the heating-without-combustion device with high external conductivity in the embodiment of the present application is provided with an insulation tube 50, and the insulation tube 50 is sleeved on the outer periphery of the cigarette holding tube 20, which is equivalent to sleeved on the outer periphery of the gas-liquid phase change heat tube 30, which can effectively reduce the heat released by the gas-liquid phase change heat tube 30 and dissipate into the outside air, so that the heat released by the gas-liquid phase change heat tube 30 is transferred to the cigarette holding tube 20, keeping the temperature in the cigarette holding tube 20 balanced. At the same time, the heat loss in the cigarette holding tube 20 is very slow, which can also reduce the power consumed by the heater 40 and reduce unnecessary power consumption. Since the heater 40 is located inside the fixing seat 11, the insulation tube 50 can be set on the fixing seat 11. Specifically, a groove can be set on the outer side of the fixing seat 11, and a convex strip can be set on the inner side of the insulation tube 50. The convex strip can be clamped in the groove to achieve the installation of the insulation tube 50 on the fixing seat 11, and the insulation tube 50 can also be fixed; or a convex strip can be set on the outer side of the fixing seat 11, and a groove can be set on the inner side of the insulation tube 50. The convex strip can be clamped in the groove to achieve the installation of the insulation tube 50 on the fixing seat 11, and the insulation tube 50 can also be fixed. The above installation method is simple and convenient, which is conducive to the assembly of a heating non-combustion device with high external conductivity.

[0087] It is understandable that the thermal insulation pipe 50 in the embodiment of the present application can be made of the same thermal insulation material as the fixing seat 11 or the thermal insulation layer.

[0088] Furthermore, the size of the opening provided at the end of the insulation tube 50 away from the fixed seat 11 is consistent with the size of the opening at the end of the cigarette receiving tube 20 away from the fixed seat 11, and the opening provided at the end of the insulation tube 50 away from the fixed seat 11 is directly opposite to the opening at the end of the cigarette receiving tube 20 away from the fixed seat 11, so as to ensure that the tobacco 100 passes through the opening on the insulation tube 50 and the opening on the cigarette receiving tube 20 and enters the cigarette receiving tube 20. The size of the opening provided on the insulation tube 50 can form a relatively closed space in the insulation tube 50 after the tobacco 100 is inserted into the cigarette receiving tube 20, thereby achieving a better insulation effect.

[0089] In the above-mentioned embodiments 1 to 4, reference is made to Figures 1-6 、 Figure 8 The heating without burning device with high external conductivity performance also includes a shell 60, which is sleeved on the outer periphery of the insulation tube 50.

[0090] In the embodiment of the present application, the outer shell 60 is sleeved on the outer periphery of the insulation tube 50 to enhance the aesthetic appearance of the heating without burning device with high external conductivity performance, and is also more convenient for users to hold.

[0091] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A heat-not-burn device with high external conductivity, characterized in that: include: Base (10); a cigarette accommodating tube (20), the cigarette accommodating tube (20) being used to accommodate tobacco (100), the cigarette accommodating tube (20) being arranged on the base (10), and a mounting groove (21) extending along the axial direction of the cigarette accommodating tube (20) being provided on the outer surface of the cigarette accommodating tube (20); A gas-liquid phase change heat pipe (30), the gas-liquid phase change heat pipe (30) comprising an evaporation zone, a convection zone, and a condensation zone, the gas-liquid phase change heat pipe (30) comprising a sealed tube body (301) and a capillary structure layer (302) arranged in close contact with the inner wall of the tube body (301), a phase change liquid (303) being stored in the capillary structure layer (302), the gas-liquid phase change heat pipe (30) being arranged in the installation groove (21), and the gas-liquid phase change heat pipe (30) being in contact with the surface of the installation groove (21); a heater (40), the heater (40) being disposed on the base (10), and the heater (40) being used to heat the evaporation zone; The gas-liquid phase-change heat pipe (30) is configured such that when the evaporation zone is heated, the phase-change liquid (303) at the corresponding position of the evaporation zone is heated and converted into steam and flows to the condensation zone; the temperature of the steam entering the condensation zone decreases, and the heat is released and converted into the phase-change liquid (303), so that the heat is dissipated from the condensation zone and transferred to the tobacco (100) through the cigarette holding tube (20).

2. The heat-not-burn device with high external conductivity according to claim 1, characterized in that: The heater (40) is located inside the cigarette accommodating tube (20) and contacts the inner side surface of the cigarette accommodating tube (20); The heater (40) is used to conduct heat through the cigarette accommodating tube (20) to heat the evaporation zone of the gas-liquid phase change heat pipe (30).

3. The heat-not-burn device with high external conductivity according to claim 1, characterized in that: A groove is provided in the installation slot (21), and the heater (40) is arranged in the groove; The heater (40) contacts the evaporation region of the gas-liquid phase change heat pipe (30) to heat the evaporation region of the gas-liquid phase change heat pipe (30).

4. The heat-not-burn device with high external conductivity according to claim 1, characterized in that: The heater (40) is in contact with the evaporation zone of the gas-liquid phase change heat pipe (30) away from the surface of the cigarette accommodating tube (20), and the heater (40) is used to heat the evaporation zone of the gas-liquid phase change heat pipe (30).

5. The heat-not-burn device with high external conductivity according to any one of claims 2 to 4, characterized in that: The heater (40) is in the shape of a circular tube or an arc-shaped sheet.

6. The heat-not-burn device with high external conductivity according to claim 5, characterized in that: The length of the installation groove (21) is equal to the length of the cigarette accommodating tube (20).

7. The heat-not-burn device with external high conductivity according to claim 6, characterized in that: The bottom of the installation groove (21) is a curved surface coaxial with the cigarette accommodating tube (20); The gas-liquid phase change heat pipe (30) is in the shape of an arc-shaped flat sheet, the inner arc surface of the gas-liquid phase change heat pipe (30) is in contact with the bottom of the installation groove (21), and the diameter of the circumference of the outer arc surface of the gas-liquid phase change heat pipe (30) is equal to the outer diameter of the cigarette holding tube (20).

8. The heat-not-burn device with high external conductivity according to claim 5, characterized in that: The base (10) has an air flow channel (101) communicating with the cigarette accommodating tube (20) and the outside world.

9. The heat-not-burn device with external high conductivity according to claim 8, characterized in that: The base (10) includes a fixing seat (11) and an air flow channel member (12); Both ends of the fixing seat (11) are open; The airflow channel member (12) is detachably mounted on the fixing seat (11), and the airflow channel member (12) includes a plurality of airflow channels (101), and the airflow channels (101) are used to connect the cigarette accommodating tube (20) and the outside world.

10. The heat-not-burn device with high external conductivity according to claim 9, characterized in that: The airflow channel member (12) comprises a cylindrical mounting tube (121) and a plurality of radially distributed partitions (122) extending from the outer side of the cylindrical mounting tube (121); An annular step is provided on the inner side surface of the fixing seat (11), and the plurality of partitions (122) are placed on the annular step; Along the radial direction of the cylindrical mounting tube (121), the width of the partition (122) is greater than the width of the annular step, and the air flow channel (101) is formed between two adjacent partitions (122).

11. The heat-not-burn device with external high conductivity according to claim 9 or 10, characterized in that: It also includes a heat preservation tube (50), which is arranged on the fixing seat (11) and is sleeved on the outer periphery of the cigarette accommodating tube (20).

12. The heat-not-burn device with external high conductivity according to claim 11, characterized in that: It also includes an outer shell (60), which is sleeved on the outer circumference of the thermal insulation pipe (50).

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