Heating tube packaging structure and electronic cigarette smoking set

Abstract

The utility model relates to the technical field of electronic cigarettes, in particular to a heating tube packaging structure which comprises a heating tube, a first connecting tube, a second connecting tube and a first heat shrink tube, the first connecting tube is arranged at the first end of the heating tube and is coaxial with the heating tube, the second connecting tube is arranged at the second end of the heating tube and is coaxial with the heating tube, and the first heat shrink tube is arranged in the second connecting tube. The first connecting pipe, the heating pipe and the second connecting pipe are connected into a whole through a first heat shrink tube. The heating tube packaging structure provided by the utility model solves the difficulty in fixing the temperature measuring element and the lead, avoids health hidden dangers caused by packaging with glue, heat preservation cotton and the like, has the characteristics of small heat capacity, good heat insulation, good adaptability and the like, can meet the requirements of quick response, accurate temperature control and low energy consumption, and is suitable for popularization and application. The mouth feel of the electronic cigarette smoking set made of the heating pipe packaging structure can be comparable with that of an international advanced electromagnetic induction inner core heating smoking set, and a special cigarette with a metal heating sheet does not need to be matched.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic cigarettes, and in particular to a heating tube packaging structure and an electronic cigarette smoking device. Background Art

[0002] Since tobacco produces many harmful substances when burned in an open flame, in order to reduce the harm to the body, heat-not-burn electronic cigarettes (HNB electronic cigarettes) were born. Its working principle is to heat and bake special cigarettes at a low temperature of 200-300℃ to evaporate the smoke oil and nicotine. It will not burn and produce many harmful substances, and can obtain a real tobacco aroma and taste similar to traditional cigarettes.

[0003] There are many electronic cigarette core heater structures on the market, including: sheet ceramic pins, columnar ceramic pins, sheet stainless steel pins, columnar stainless steel pins, etc. Although electronic cigarette pin heaters have low energy consumption, the core is heated unevenly, and the cigarettes are prone to black cores, affecting the taste. In addition, the heating pins are difficult to clean and easy to break.

[0004] In recent years, many peripheral heating structures have appeared in the market to replace the pin heating structure, including: metal tube electromagnetic heating, tube wall winding resistance wire heating, ceramic / metal tube coating heating, etc. The peripheral heating of the smoking utensils has a good taste, does not need to be frequently cleaned and is not easy to damage, but because the peripheral heater dissipates heat quickly, consumes high energy, and the temperature measuring element is difficult to package, it greatly affects the user experience of the smoking product. For example: in the prior art, the heating tube generally has a thick tube wall and is directly bonded to the smoking device shell, and then the heating tube is wrapped with insulation cotton for insulation. This packaging structure cannot flexibly change its heating area according to the position of the tobacco in the cigarette; and the insulation cotton has poor insulation effect, low heating efficiency, high power consumption, and the temperature measuring element is also wrapped in the insulation cotton, which is not in close contact with the tube wall of the heating tube, poor thermal conductivity, slow response, and difficult temperature control; in addition, this packaging structure uses a large amount of adhesive glue and insulation cotton, which will also produce some harmful substances during operation, which will damage human health. Utility Model Content

[0005] In order to solve the technical problem in the prior art that the heating tube packaging structure cannot flexibly change the heating area according to the position of tobacco in the cigarette, the utility model proposes a heating tube packaging structure, in which the first connecting tube, the heating tube and the second connecting tube can be connected as a whole through the first heat shrink tube, and the installation is convenient. The height position of the heating tube can be adjusted by flexibly changing the length of the first connecting tube and the second connecting tube, and the adaptability is better. The smoking utensil shell does not need to be re-molded, which saves costs.

[0006] The technical solution of this utility model:

[0007] A heating tube packaging structure, comprising:

[0008] Heating tube;

[0009] A first connecting tube, which is disposed at a first end of the heating tube and is coaxially arranged with the heating tube;

[0010] a second connecting tube, the second connecting tube being arranged at the second end of the heating tube and being coaxially arranged with the heating tube;

[0011] A first heat shrinkable tube, wherein the first connecting tube, the heating tube and the second connecting tube are connected as a whole through the first heat shrinkable tube.

[0012] Furthermore, the heating tube packaging structure also includes a temperature measuring element, the temperature sensing part of the temperature measuring element is located on the outer wall of the heating tube and is fixed by the first heat shrink tube, and the cable of the temperature measuring element is led out from between the first heat shrink tube and the second connecting tube, or from between the first heat shrink tube and the first connecting tube.

[0013] Furthermore, the heating tube packaging structure also includes a sleeve, which is sleeved on the first heat shrink tube and covers the first connecting tube, the heating tube and the second connecting tube, and the sleeve is fixedly connected to the first connecting tube and the second connecting tube; the outer diameters of the first connecting tube and the second connecting tube are the same and larger than the outer diameter of the heating tube, so as to form an insulating cavity between the sleeve and the heating tube.

[0014] The heating tube packaging structure also includes a second heat shrink tube, which is sleeved on the sleeve. The sleeve is heat-shrinkably connected with the first connecting tube and the second connecting tube through the second heat shrink tube.

[0015] Furthermore, the heating tube packaging structure also includes a thermal insulation pad, which is sleeved on the second heat shrink tube and at least covers the entire heating tube.

[0016] Furthermore, the heating tube includes a tube body and a heating outer layer wrapped around the tube body, the heating outer layer includes an insulating layer and a heating resistor layer, the insulating layer is wrapped around the outer surface of the tube body, and the heating resistor layer is wrapped around the outer surface of the insulating layer; a lead wire is also connected to the heating resistor layer, and the lead wire is led out from between the first heat shrink tube and the second connecting tube, or from between the first heat shrink tube and the first connecting tube.

[0017] Furthermore, the tube body of the heating tube is a metal tube; the first connecting tube and the second connecting tube are glass tubes, quartz tubes, plastic tubes, ceramic tubes or metal tubes; the first heat shrink tube and the second heat shrink tube are Teflon heat shrink tubes; the sleeve is a glass tube, quartz tube, plastic tube, ceramic tube or metal tube; the thermal insulation pad is a foam silicone pad.

[0018] Furthermore, the first connecting tube, the heating tube and the second connecting tube have the same inner diameter.

[0019] Furthermore, the heating tube is a thin-walled heating tube, and the wall thickness of the tube body of the thin-walled heating tube is less than 0.3 mm.

[0020] Another aspect of the present invention provides an electronic cigarette smoking device, comprising a heating tube packaging structure as described in any one of the above items, wherein the smoking device comprises a shell, and a mounting portion for clamping the heating tube packaging structure is provided on the shell.

[0021] After adopting the above technical solution, the heating tube packaging structure provided by the utility model has the following beneficial effects compared with the prior art:

[0022] The heating tube packaging structure provided by the utility model can flexibly change the lengths of the first connecting tube and the second connecting tube according to the position of tobacco in the cigarette, so that the height position of the heating tube in the smoking utensil can be flexibly changed, and the heating area can be flexibly changed to adapt to a variety of cigarettes without changing the structure of the smoking utensil.

[0023] The heating tube packaging structure provided by the utility model fixes the first connecting tube, the heating tube and the second connecting tube by means of the first heat shrinkable tube. After the first heat shrinkable tube shrinks in the same direction, the concentricity of the first connecting tube, the heating tube and the second connecting tube can be ensured, and the temperature measuring element can be well restrained on the outer wall of the heating tube, so that the temperature measuring element is close to the heating tube, thereby making the temperature measurement more accurate, realizing rapid response and precise temperature control, and avoiding the health hazards caused by packaging with glue, thermal insulation cotton and the like.

[0024] The heating tube packaging structure provided by the utility model greatly improves the insulation effect through multiple insulation measures such as the first heat shrink tube, the insulation cavity between the sleeve and the first heat shrink tube, the sleeve, the second heat shrink tube, and the insulation pad, ensuring that the temperature of the smoking device shell meets the requirements; and it also has high heating efficiency and low power consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the structure of the heating tube of the utility model;

[0026] Figure 2 It is a structural schematic diagram of the first connecting pipe or the second connecting pipe of the utility model;

[0027] Figure 3 It is a structural schematic diagram of the heating pipe, the first connecting pipe and the second connecting pipe of the utility model;

[0028] Figure 4 It is a structural schematic diagram of the columnar tooling of the utility model;

[0029] Figure 5It is a structural schematic diagram of a first heat shrinkable tube of the utility model;

[0030] Figure 6 It is a structural schematic diagram of the sleeve of the utility model;

[0031] Figure 7 It is a structural schematic diagram of a second heat shrinkable tube of the utility model;

[0032] Figure 8 It is a structural schematic diagram of the thermal insulation pad of the utility model;

[0033] Fig. 9 This is a schematic diagram of the structure decomposition of the electronic cigarette smoking device of the present utility model;

[0034] Fig.10 It is a schematic diagram of the overall structure of the electronic cigarette smoking device of the present utility model.

[0035] in,

[0036] Smoking article 100, heating tube packaging structure 1, heating tube 11, tube body 111, heating outer layer 112, strip notch 1121, lead 113, first connecting tube 12, second connecting tube 13, first heat shrink tube 14, columnar tooling 15, temperature measuring element 16, sleeve 17, second heat shrink tube 18, thermal insulation pad 19; inner shell 2, mounting portion 21, clamping edge 211; outer shell 3, switch 31; upper cover 4; base 5. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0038] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0039] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.

[0040] Embodiment 1:

[0041] like Figure 1-8 As shown, this embodiment provides a heating tube packaging structure of an HNB (heat-not-burn) electronic cigarette, the packaging structure includes a heating tube 11, a first connecting tube 12 and a second connecting tube 13, wherein the heating tube 11 is sandwiched between the first connecting tube 12 and the second connecting tube 13, that is, the first connecting tube 12 and the second connecting tube 13 are respectively arranged at the first end and the second end of the heating tube 11. A first heat shrink tube 14 is also sleeved on the first connecting tube 12, the heating tube 11 and the second connecting tube 13, and the first heat shrink tube 14 is tightened after being heated so that the first connecting tube 12, the heating tube 11 and the second connecting tube 13 are connected to form a whole, and the heating tube 11, the first connecting tube 12 and the second connecting tube 13 remain coaxial. The first connecting tube 12, the heating tube 11 and the second connecting tube 13 are all hollow tubes, and a space for inserting a cigarette is formed inside them. After the cigarette is inserted, the tobacco is located exactly in the heating area where the heating tube 11 is located.

[0042] In the prior art, the heating tube is generally directly fixed in the housing of the cigarette utensil by means of glue bonding or the like. This packaging method makes it only adaptable to specific cigarettes. When the position of the tobacco in the cigarette changes, if you want to adjust the height position of the heating tube, you need to change the structure of the housing of the cigarette utensil, and you need to re-open the mold, which is very costly. The position of the tobacco and the length of the area of ​​the cigarette developed by each manufacturer are different, so the adaptability of the existing packaging structure is poor. In this embodiment, the first connecting tube 12 and the second connecting tube 13 can flexibly change their size to adjust the position of the heating tube 11, so that the heating area can adapt to different cigarettes, ensuring the best heating effect, without re-opening the mold, and good adaptability. In addition, the first connecting tube 12 and the second connecting tube 13 can play the role of heat insulation and strengthening structure at both ends. The first connecting tube 12 and the second connecting tube 13 can be selected but not limited to glass tubes, quartz tubes, plastic tubes, ceramic tubes or metal tubes, preferably made of materials with high temperature resistance and good thermal stability.

[0043] In addition, in this embodiment, the first heat shrink tube 14 is used to heat shrink the first connecting tube 12, the heating tube 11 and the second connecting tube 13, so that they are tightly connected to form a whole. Before heat shrinking, the first connecting tube 12, the heating tube 11 and the second connecting tube 13 can be kept coaxial by using auxiliary tooling, and then heat shrinking is performed. This connection method is easy to assemble and does not require glue bonding, reducing the health hazards caused by glue. In addition, the first heat shrink tube 14 can also play a certain role in heat insulation. The first heat shrink tube 14 is preferably a Teflon heat shrink tube, that is, a polytetrafluoroethylene (PTFE) material, which has the characteristics of high temperature resistance, good thermal stability, and corrosion resistance.

[0044] In order to ensure that the concentricity of the first connecting tube 12, the heating tube 11 and the second connecting tube 13 meets the requirements and simplify the difficulty of assembly and connection, the first connecting tube 12, the heating tube 11 and the second connecting tube 13 are arranged to have the same inner diameter in this embodiment, and the auxiliary tooling can be a columnar tooling 15, such as Figure 4 , that is, a long round rod, through which the first connecting tube 12, the heating tube 11 and the second connecting tube 13 are strung together to keep them coaxial, that is, to maintain a certain concentricity, and then the first heat shrink tube 14 is sleeved on the first connecting tube 12, the heating tube 11 and the second connecting tube 13 for heat shrink connection. Alternatively, other structures of the tooling can be used to ensure the concentricity requirements of the first connecting tube 12, the heating tube 11 and the second connecting tube 13, which is simple to assemble and has high assembly accuracy.

[0045] like Figure 3 As shown, the heating tube packaging structure of this embodiment also includes a temperature measuring element 16, which can be selected from but not limited to thermocouple wires, NTC with leads and platinum film thermistor with leads, preferably thermocouple wires, and its principle is to measure temperature by forming a closed loop with two conductors of different materials, and has the characteristics of high measurement accuracy, large measurable range, stable operation, etc. The temperature sensing part of the temperature measuring element 16 is located on the outer wall of the heating tube 11 and is firmly fixed on the outer surface of the heating tube 11 by shrinking the first heat shrink tube 14, so that the temperature sensing part is in close contact with the heating tube 11, with good heat conduction, fast response, and convenient for accurate temperature control. The cable of the temperature measuring element 16 is led out from between the first heat shrink tube 14 and the second connecting tube 13, or from between the first heat shrink tube 14 and the first connecting tube 12, and is electrically connected to the circuit board for temperature collection and control, and a part of the cable is also fixed by heat shrinking the first heat shrink tube 14. In this way, it is fixed by the first heat shrink tube 14, without the need to use glue and thermal insulation cotton, and no additional harmful substances will be generated.

[0046] The heating tube 11 of this embodiment is a peripheral heating structure, that is, the heating tube 11 includes a tube body 111 and a heating outer layer 112 wrapped around the tube body 111. The heating outer layer 112 can be powered on to generate heat, and the heat is transferred to the inside of the tube body 111 to heat and bake the inserted cigarette. Preferably, a strip-shaped notch 1121 is formed on the heating outer layer 112 of the heating tube 11, and the temperature sensing part of the temperature measuring element 16 and its cable are located on the outer wall of the tube body 111 and in the strip-shaped notch 1121. The temperature measuring element 16 is accommodated through the strip-shaped notch 1121, which is conducive to the heat shrink connection of the first heat shrink tube 14. It is preferred to set the size of the temperature measuring element 16 to be larger than the thickness of the heating outer layer 112, that is, protrude from the heating outer layer 112, so as to ensure that the temperature measuring element 16 can be fixed by force.

[0047] In this embodiment, the tube body 111 of the heating tube 11 is a metal tube, preferably an aluminum tube. Aluminum has a small heat capacity, and the heat required to heat to the same temperature at the same thickness is small, which can reduce power consumption. In addition, aluminum has good thermal conductivity and can transfer heat to the inside for heating more quickly. The heating tube is a thin-walled heating tube. Specifically, the wall thickness of the tube body 111 of the thin-walled heating tube is less than 0.3 mm. The heat capacity of the thin-walled heating tube is smaller and the heating speed is faster, but it is relatively fragile or easily deformed, and it is difficult to package. The packaging structure of this embodiment is packaged by a heat shrink tube to form a stable overall structure, which can solve this problem well.

[0048] Furthermore, in the present embodiment, the heating outer layer 112 of the heating tube 11 includes an insulating layer and a heating resistor layer, wherein the insulating layer is integrally sintered and wrapped around the outer surface of the tube body 111, and the heating resistor layer is integrally sintered and wrapped around the outer surface of the insulating layer. The heating resistor layer is preferably a thick film circuit heating layer, which is sintered with metal resistor paste as the main raw material. After being powered on, it has stable heating power, uniform heating, high power density, small heat capacity, and high thermal efficiency. Its heating effect is much higher than that of traditional heating wires. As needed, a protective layer can be integrally sintered on the outer surface of the thick film circuit heating layer for insulation and protection. The heating resistor layer is connected to two positive and negative lead wires 113, which are drawn out from between the first heat shrink tube 14 and the second connecting tube 13, or from between the first heat shrink tube 14 and the first connecting tube 12, and connected to the circuit board for power supply. The first heat shrink tube 14 tightens and fixes the lead wires 113 when it shrinks under heat.

[0049] like Figure 6-7As shown, the heating tube packaging structure of this embodiment also includes a sleeve 17, which is sleeved on the first heat shrink tube 14 and covers the first connecting tube 12, the heating tube 11 and the second connecting tube 13, that is, the sleeve 17 completely covers the periphery of the heating tube 11, and extends to cover a part of the periphery of the first connecting tube 12 and the second connecting tube 13, and the outer diameters of the first connecting tube 12 and the second connecting tube 13 are the same and larger than the outer diameter of the heating tube 11, so that a heat insulation cavity is formed between the sleeve 17 and the heating tube 11 to prevent heat from radiating outward, thereby improving the heating efficiency and reducing power consumption, and no harmful substances are generated like using heat insulation cotton. The sleeve 17 can be fixedly connected to the first connecting tube 12 and the second connecting tube 13 by high-temperature glue, or preferably, by sleeved on the outside of the sleeve 17 with a second heat shrink tube 18 for heat shrink connection, so as to form a new whole with the first connecting tube 12, the heating tube 11, the second connecting tube 13 and the first heat shrink tube 14. The sleeve 17 and the second heat shrink tube 18 can also play a role in further stabilizing the structure when the first heat shrink tube 14 is heated and may reach the softening point. The sleeve 17 can be selected but not limited to a glass tube, a quartz tube, a plastic tube, a ceramic tube or a metal tube, preferably a material with high temperature resistance, good thermal stability and good thermal insulation performance; the second heat shrink tube 18 is preferably a Teflon heat shrink tube, which has the characteristics of high temperature resistance, good thermal stability and corrosion resistance. Through the setting of the size, the sleeve 17 can maintain a certain coaxiality with the heating tube 11 after being sleeved on the first heat shrink tube 14, and preferably, when fixing the sleeve 17, the columnar tooling 15 is also inserted to prevent the second heat shrink tube 18 from shrinking and affecting the coaxiality of the first connecting tube 12, the heating tube 11 and the second connecting tube 13 after assembly.

[0050] Furthermore, if Figure 8 As shown, the heating tube packaging structure of this embodiment also includes a heat insulation pad 19. The heat insulation pad 19 corresponds to the processed hole and is sleeved on the second heat shrink tube 18. The thickness and number of the heat insulation pad 19 can be set as needed, but it is necessary to at least cover the entire heating tube 11. Preferably, the heat insulation pad 19 in this embodiment covers the periphery of the heating tube 11, and also extends to a part of the periphery of the first connecting tube 12 and the second connecting tube 13, effectively reducing the heat dissipation outward. The heat insulation pad 19 is preferably a foamed silicone pad. Although the sleeve 17 has a certain heat insulation effect, the temperature of its tube wall may still exceed 100 degrees Celsius. In this embodiment, a layer of foamed silicone is arranged on its periphery. The thermal conductivity of the foamed silicone is about 0.06W / mk, which can achieve a peripheral temperature below 50 degrees Celsius, greatly improving the heat insulation effect, improving the heating effect, reducing power consumption, and meeting the temperature requirements of the electronic cigarette shell, comfortable to hold, and preventing touch burns.

[0051] As an optional implementation scheme of this embodiment, the inner diameter of the heating tube 11 is 7.5mm; the inner diameter of the first connecting tube 12 is 7.5mm, the outer diameter is 9.5mm, and the length is 10mm; the inner diameter of the second connecting tube 13 is 7.5mm, the outer diameter is 9.5mm, and the length is 13mm; the diameter of the first heat shrink tube 14 is 10-11mm, and the wall thickness is 0.1-0.2mm; the inner diameter of the sleeve 17 is 10mm, the outer diameter is 12mm, and the length is 25mm; the diameter of the second heat shrink tube 18 is 13-14mm, and the wall thickness is 0.1-0.2mm; the thermal insulation pad 19 is a cube of 19mm×19mm and a certain length, and its internal aperture is 12mm.

[0052] In this way, the heating tube packaging structure in this embodiment is formed as a whole and can be directly installed in the electronic cigarette device without the need for glue, which makes assembly easy. Even if bonding is used, the glue is far away from the heating tube 11 and is not easily heated to produce harmful substances.

[0053] From the above content, it can be known that the packaging structure of the heating tube provided in this embodiment can well fix the temperature measuring element 16 on the outer wall of the heating tube 11 through the first heat shrink tube 14, and can ensure the concentricity of the first connecting tube 12, the heating tube 11 and the second connecting tube 13; in addition, by setting the first heat shrink tube 14, the heat insulation cavity formed between the sleeve 17 and the first heat shrink tube 14, the sleeve 17, the second heat shrink tube 18, the heat insulation pad 19 and other multiple insulation measures, the heat insulation effect is greatly improved, the heating efficiency is improved, and the power consumption is reduced. The taste of the electronic cigarette made of this heater structure can be comparable to that of the internationally advanced electromagnetic induction inner core heating tobacco set, and there is no need to match the proprietary cigarette with a metal heating plate.

[0054] Embodiment 2:

[0055] This embodiment provides an electronic cigarette smoking device 100, and the electronic cigarette smoking device 100 adopts the heating tube packaging structure 1 described in the first embodiment. Figure 9-10As shown, the electronic cigarette smoking device 100 includes a shell, which includes an inner shell 2, an outer shell 3, an upper cover 4 and a base 5, wherein a mounting portion 21 is formed on the inner shell 2 to clamp the heating tube packaging structure 1. For example, the front side of the inner shell 2 is open, and a clamping edge 211 arranged in four corners is formed on the upper left side thereof, and the clamping edge 211 is used to clamp the heating tube packaging structure 1, and specifically can clamp the thermal insulation pad 19; the thermal insulation pad 19 has a certain elasticity and can tightly clamp the overall tubular structure inside it, or can also be fixed with the internal overall tubular structure by high-temperature glue. The top and bottom of the inner shell 2 are also open, and the outer shell 3 is a square sleeve structure with openings at both ends. After being sleeved on the inner shell 2, the upper cover 4 and the base 5 are clamped at both ends or installed with screws. A circuit board, a battery and other components are also provided in the inner shell 2, and a switch 31 for operation is also provided on the outer shell 3.

[0056] The cigarette of an electronic cigarette generally includes a mouthpiece, a buffer part and tobacco. When heating the cigarette, the tobacco in the cigarette needs to be heated, that is, the position of the heating tube 11 needs to be exactly at the position of the tobacco after the cigarette is inserted, so that it can be effectively heated; in the prior art, when it is necessary to set a suction resistance in the cigarette or the position of the tobacco changes due to other reasons, the position of the heating tube 11 cannot be adaptively adjusted, and the smoking device shell needs to be re-molded and manufactured, which is costly; in this embodiment, only the length of the first connecting tube 12 and / or the second connecting tube 13 needs to be adaptively changed, so that the position of the heating tube 11 corresponds to the position of the tobacco in the new cigarette after insertion, which has better adaptability, is easy to change, and has low cost, and there is no need to redesign the smoking device structure.

[0057] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A heating tube packaging structure, characterized in that: include: Heating tube (11); A first connecting tube (12), the first connecting tube (12) being arranged at a first end of the heating tube (11) and being coaxially arranged with the heating tube (11); a second connecting tube (13), the second connecting tube (13) being arranged at a second end of the heating tube (11) and being coaxially arranged with the heating tube (11); A first heat shrinkable tube (14), wherein the first connecting tube (12), the heating tube (11) and the second connecting tube (13) are connected as a whole via the first heat shrinkable tube (14).

2. The heating tube packaging structure according to claim 1, characterized in that: The heating tube packaging structure further comprises a temperature measuring element (16); a temperature sensing portion of the temperature measuring element (16) is located on the outer wall of the heating tube (11) and is fixed by the first heat shrink tube (14); a cable of the temperature measuring element (16) is led out from between the first heat shrink tube (14) and the second connecting tube (13), or from between the first heat shrink tube (14) and the first connecting tube (12).

3. The heating tube packaging structure according to claim 1, characterized in that: The heating tube packaging structure further comprises a sleeve (17), the sleeve (17) being sleeved on the first heat shrink tube (14) and covering the first connecting tube (12), the heating tube (11) and the second connecting tube (13), the sleeve (17) being fixedly connected to the first connecting tube (12) and the second connecting tube (13); the first connecting tube (12) and the second connecting tube (13) have the same outer diameter and are larger than the outer diameter of the heating tube (11), so as to form a heat insulating cavity between the sleeve (17) and the heating tube (11).

4. The heating tube packaging structure according to claim 3, characterized in that: The heating tube packaging structure further comprises a second heat shrink tube (18), wherein the second heat shrink tube (18) is sleeved on the sleeve (17), and the sleeve (17) is heat-shrinkably connected to the first connecting tube (12) and the second connecting tube (13) via the second heat shrink tube (18).

5. The heating tube packaging structure according to claim 4, characterized in that: The heating tube packaging structure also includes a heat insulating pad (19), which is sleeved on the second heat shrink tube (18) and covers at least the entire heating tube (11).

6. The heating tube packaging structure according to claim 5, characterized in that: The heating tube (11) comprises a tube body (111) and a heating outer layer (112) wrapped around the tube body (111); the heating outer layer (112) comprises an insulating layer and a heating resistor layer; the insulating layer is wrapped around the outer surface of the tube body (111); the heating resistor layer is wrapped around the outer surface of the insulating layer; a lead wire (113) is also connected to the heating resistor layer; the lead wire (113) is led out from between the first heat shrink tube (14) and the second connecting tube (13), or from between the first heat shrink tube (14) and the first connecting tube (12).

7. The heating tube packaging structure according to claim 6, characterized in that: The tube body (111) of the heating tube (11) is a metal tube; the first connecting tube (12) and the second connecting tube (13) are glass tubes, quartz tubes, plastic tubes, ceramic tubes or metal tubes; the first heat shrink tube (14) and the second heat shrink tube (18) are Teflon heat shrink tubes; the sleeve (17) is a glass tube, quartz tube, plastic tube, ceramic tube or metal tube; and the heat insulation pad (19) is a foamed silicone pad.

8. The heating tube packaging structure according to claim 1, characterized in that: The first connecting tube (12), the heating tube (11) and the second connecting tube (13) have the same inner diameter.

9. The heating tube packaging structure according to claim 6, characterized in that: The heating tube (11) is a thin-walled heating tube, and the wall thickness of the tube body (111) of the thin-walled heating tube is less than 0.3 mm.

10. An electronic cigarette smoking device, characterized in that: The heating tube packaging structure comprises the heating tube packaging structure according to any one of claims 1 to 9, and further comprises a shell, wherein the shell is provided with a mounting portion (21) for clamping the heating tube packaging structure.

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