A combined tubular heating element and a heating non-combustible atomizing device

Abstract

This invention discloses a combined tubular heating element and a heated non-combustible atomizing device. It employs a tubular component, closed at one end and open at the other, as the first and second heating elements, which are fixedly connected to form a heating element with a tubular structure and a guide tip. The guide tip facilitates insertion into the interior of a cigarette or similar object requiring heating and atomization. The tubular heating element exhibits high specific strength, meeting strength requirements while being lightweight, reducing the energy required for self-heating and thus increasing the heating rate of the object. It also reduces costs, features a simple and compact structure, simplifies the manufacturing process, facilitates operation, ensures consistent product quality, and enhances the user experience.

Description

Technical Field

[0001] This invention belongs to the field of atomizer manufacturing technology, specifically relating to a combined tubular heating component and a heated non-combustible atomizing device. Background Technology

[0002] Atomizers are widely used in various industries such as engineering, daily life, leisure and entertainment, medical care, and electrical engineering. They are also a key component in low-temperature smoking devices for daily life and leisure. Internally heated low-temperature smoking devices have advantages such as long battery life, good puff consistency, and easy miniaturization, making them the mainstream direction for low-temperature smoking devices. Common heating elements in internally heated low-temperature smoking devices mainly include ceramic needles and ceramic sheet heating elements with sintered heating circuits, as well as heating elements with heating coils encased in metal shells (hereinafter referred to as "coil heating elements"). Among them, ceramic needle heating elements have a slow heating rate due to their large mass and high heat absorption; ceramic needle and ceramic sheet heating elements are prone to breakage due to the inherent brittleness of ceramics; ceramic sheet heating elements are also prone to bending and breakage due to their thinness; and coil heating elements suffer from poor product consistency due to the easy deformation of the heating coil. All of these problems reduce the user experience.

[0003] Existing internal heating elements require separate support components and heating elements, resulting in a complex structure and cumbersome manufacturing process. Furthermore, internal heating elements have limited volume and space, making them inconvenient to manufacture, install, connect, assemble, and operate. Summary of the Invention

[0004] To address the aforementioned problems in existing technologies, the present invention aims to provide a combined tubular heating element and a heating-non-combustible atomizing device. This device employs a tubular assembly structure, which is simple and compact, avoiding issues such as slow temperature rise, brittle ceramic materials, and easily deformed coils that lead to inconsistent product quality and inconvenient operation, thus improving the user experience.

[0005] The technical solution adopted in this invention is as follows:

[0006] A combined tubular heating element includes a first heating element and a second heating element, both of which are tubular components that are closed at one end and open at the other end.

[0007] The first heating element is fixedly connected to the second heating element through the first mating surface and the second mating surface of the second heating element, thus forming a heating assembly with a tubular structure.

[0008] The inner cavity of the first heating element is provided with a first electrical connection wire, which extends from the open end of the first heating element to the outside of the first heating element.

[0009] The inner cavity of the second heating element is provided with a first electrical connection wire, and the second electrical connection wire extends from the open end of the second heating element to the outside of the second heating element.

[0010] The closed end of the first heating element is provided with a first guide end, and the closed end of the second heating element is provided with a second guide end. The first guide end and the second guide end are combined to form a guide tip.

[0011] Furthermore, the first heating element and the second heating element have the same or similar cross-sections and are arranged symmetrically to each other.

[0012] Furthermore, both the first heating element and the second heating element are triangular tubular heating elements with a triangular annular cross section; the first heating element and the second heating element are fixedly connected by surface-to-surface contact, and are combined to form a heating assembly with a quadrangular tubular structure; the first guide end and the second guide end are both outwardly protruding triangular pyramids, and the first guide end and the second guide end are spliced ​​together to form a quadrangular pyramidal guide tip.

[0013] Furthermore, the first guide end and the first heating element are integral structures formed by a one-time molding process, and the second guide end and the second heating element are also integral structures formed by a one-time molding process; the inner end of the first electrical connection wire extends along the inner cavity of the first heating element to be fixedly connected to the inner surface of the first guide end; the second guide end and the second heating element are also integral structures formed by a one-time molding process; the inner end of the second electrical connection wire extends along the inner cavity of the second heating element to be fixedly connected to the inner surface of the second guide end.

[0014] Furthermore, the position of the first mating surface near the opening end and the position of the second mating surface near the opening end are fixedly connected by welding, and the other parts of the first mating surface except for the welding position and the other parts of the second mating surface except for the welding position are fixedly connected by insulating material.

[0015] Furthermore, an encapsulation sleeve is provided on the outside of the guide tip, and the encapsulation sleeve is fixedly bonded to the outer surface of the guide tip by an encapsulation layer; the material of the encapsulation layer is a high-temperature resistant insulating material.

[0016] Furthermore, the encapsulation sleeve is a four-sided pyramidal sleeve adapted to the guide tip; the outer surface of the guide tip is provided with a limiting groove, and the encapsulation sleeve is limited and locked in the groove; the maximum side length of the outer surface of the encapsulation sleeve is consistent with the side length of the outer surface of the first heating element and the second heating element.

[0017] Furthermore, both the first heating element and the second heating element are tubular heating elements with a semi-circular cross-section; the first heating element and the second heating element are fixedly connected by surface-to-surface contact, and are combined to form a cylindrical tubular heating assembly.

[0018] Both the first guide end and the second guide end are outwardly protruding semi-conical shapes, and the first guide end and the second guide end are spliced ​​together to form a conical guide tip;

[0019] The encapsulation sleeve is also a conical sleeve adapted to the guide tip;

[0020] The maximum outer diameter of the encapsulation sleeve is the same as the outer diameter of the cylindrical tubular heating element.

[0021] Furthermore, the inner end of the first electrical connection wire is fixedly connected to the inner cavity of the first heating element near the opening end, and the inner end of the second electrical connection wire is fixedly connected to the inner cavity of the second heating element near the opening end.

[0022] The first mating surface near the closed end and the second mating surface near the closed end are fixed and electrically connected by welding. The other parts of the first mating surface, except for the welding position, and the other parts of the second mating surface, except for the welding position, are fixedly connected by insulating material.

[0023] Furthermore, both the first heating element and the second heating element are tubular heating elements with a semi-circular cross-section; the first heating element and the second heating element are fixedly connected by surface-to-surface contact, and are combined to form a cylindrical tubular heating assembly.

[0024] Both the first guide end and the second guide end are outwardly protruding semi-conical shapes, and the first guide end and the second guide end are spliced ​​together to form a conical guide tip;

[0025] The first mating surface near the opening end and the second mating surface near the opening end are fixedly connected by welding.

[0026] Alternatively, the position of the first mating surface corresponding to the first guide end and the position of the second mating surface corresponding to the second guide end may be in contact with each other.

[0027] The first mating surface, except for the welding position, and the second mating surface, except for the welding position, are fixedly connected by insulating material.

[0028] Furthermore, the inner cavities of the first heating element and the second heating element are respectively filled with high-temperature resistant materials.

[0029] Finally, the present invention also relates to a heated non-combustible atomizing device, comprising a combined tubular heating assembly having any one of the above-mentioned features.

[0030] The beneficial effects of this invention are as follows:

[0031] A combined tubular heating element and a heated non-combustible atomizing device are disclosed. The heating element comprises a tubular component, closed at one end and open at the other, serving as the first and second heating elements. These components are fixedly connected to form a heating element with a tubular structure and include a guide tip. The guide tip facilitates insertion into the interior of a cigarette or similar object requiring heating and atomization. The tubular heating element exhibits high specific strength, meeting strength requirements while maintaining a light weight, thus reducing the energy required for self-heating and increasing the heating rate of the object. This results in reduced cost, a simple and compact structure, simplified manufacturing process, convenient operation, consistent product quality, and an improved user experience. Attached Figure Description

[0032] Figure 1 This is a three-dimensional structural diagram of the combined tubular heating component according to Embodiment 1 of the present invention;

[0033] Figure 2 This is a schematic diagram of the planar structure of the combined tubular heating element according to Embodiment 1 of the present invention;

[0034] Figure 3 yes Figure 2 A top-view structural diagram;

[0035] Figure 4 yes Figure 2 A schematic diagram of the structure viewed from below;

[0036] Figure 5 yes Figure 2 A schematic diagram of the cross-sectional structure;

[0037] Figure 6 This is a three-dimensional structural diagram of the combined tubular heating component according to Embodiment 2 of the present invention;

[0038] Figure 7 This is a schematic diagram of the planar structure of the combined tubular heating element according to Embodiment 2 of the present invention;

[0039] Figure 8 yes Figure 7 A top-view enlarged structural diagram;

[0040] Figure 9 yes Figure 7 An enlarged schematic diagram of the structure viewed from below;

[0041] Figure 10 yes Figure 7 Enlarged cross-sectional view of the structure;

[0042] Figure 11 This is a three-dimensional structural diagram of the combined tubular heating component according to Embodiment 3 of the present invention;

[0043] Figure 12 This is a schematic diagram of the planar structure of the combined tubular heating element according to Embodiment 3 of the present invention;

[0044] Figure 13 yes Figure 12 A top-view enlarged structural diagram;

[0045] Figure 14 yes Figure 12 An enlarged schematic diagram of the structure viewed from below;

[0046] Figure 15 yes Figure 12 Enlarged cross-sectional view;

[0047] Figure 16 This is a three-dimensional structural diagram of the combined tubular heating component according to Embodiment 4 of the present invention;

[0048] Figure 17 This is a schematic diagram of the planar structure of the combined tubular heating element according to Embodiment 4 of the present invention;

[0049] Figure 18 yes Figure 17 A top-view enlarged structural diagram;

[0050] Figure 19 yes Figure 17 An enlarged schematic diagram of the structure viewed from below;

[0051] Figure 20 yes Figure 17 Enlarged cross-sectional view of the structure. Detailed Implementation

[0052] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0053] The terms "first," "second," and "third" used in this application are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number or order of the indicated technical features. All directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship or movement of the components in a specific orientation (as shown in the accompanying drawings). If the specific orientation changes, the directional indication will also change accordingly. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or devices.

[0054] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0055] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be intervening elements. When an element is referred to as being "connected to" another element, it can be directly connected to the other element, or there may be one or more intervening elements. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementations.

[0056] like Figures 1-5 As shown, Embodiment 1 of the present invention provides a combined tubular heating component and a heated non-combustible atomizing device. The overall design scheme is as follows: the atomizing device is usually composed of components such as heating unit (e.g., heating circuit, heating coil), insulation unit (e.g., ceramic rod, ceramic sheet, insulating film, insulating filler) and support unit (e.g., ceramic rod, ceramic sheet, metal shell) according to functional requirements, and the tubular component or its combination can be applied to these three components.

[0057] Regarding the problem of short circuits caused by overheating inside the heating element and between the heating element and the metal casing, there are several solutions: 1) In-situ oxidation (such as micro-arc oxidation and anodizing of aluminum, magnesium, and titanium), 2) Coating the surface with an insulating film, such as ceramic glaze, glass glaze, or inorganic adhesive film, 3) Adding an insulating spacer, such as anodized aluminum sheet, ceramic sheet, or glass sheet.

[0058] Based on the above analysis, this embodiment provides a preferred implementation scheme: using two pipe fittings as both heating unit and support unit.

[0059] Specifically, a combined tubular heating assembly mainly comprises a first heating element 1 and a second heating element 2 made of conductive ceramic or heating wire material. Both the first heating element 1 and the second heating element 2 are tubular components with one end closed and the other end open. The first heating element 1 is fixedly connected to the second heating element 2 through a first mating surface and a second mating surface, forming a heating assembly with a tubular structure. A first electrical connection line 12 is provided in the inner cavity of the first heating element 1, extending from the open end of the first heating element 1 to the outside of the first heating element 1. A first electrical connection line 22 is provided in the inner cavity of the second heating element 2, extending from the open end of the second heating element 2 to the outside of the second heating element 2. The first electrical connection line 12 and the second electrical connection line 22 are connected to a power source to provide power to the first heating element 1 and the second heating element 2.

[0060] Both the first heating element 1 and the second heating element 2 are made of resistance wire materials such as stainless steel, NiCr, and FeCrAl.

[0061] The first heating element 1 and the second heating element 2 can also adopt a structural scheme in which a whole tube is split in half along the longitudinal axis and an insulating plate is inserted between the two halves.

[0062] The problems in heating elements in the prior art are solved by using pipe fittings or combinations thereof (such as grid structures or honeycomb structures). As is well known, pipe fittings have the advantage of high specific strength. Heating elements with pipe fitting structures can reduce their mass while maintaining strength, thereby reducing the energy required for the heating element to heat up and thus increasing the heating rate of the object to be heated.

[0063] Furthermore, the tubular structure of the metal fittings can also improve the brittleness of the heating element. Calculations show that using tubular fittings made of stainless steel, NiCr, FeCrAl, or other resistance wire materials as heating elements allows for easy adjustment of the heating element's resistance to 0.5–1.5Ω or other suitable ranges by adjusting the fitting's wall thickness, diameter, number, or series / parallel connection method. The tubular structure of the heating element also mitigates the problem of coil deformation caused by heating, which leads to inconsistent product quality. Moreover, the processing technology for tubular fittings or grid / honeycomb structures is very mature, which not only helps reduce processing costs but also further improves product consistency.

[0064] A first guide end 13 is provided at the closed end of the first heating element 1, and a second guide end 23 is provided at the closed end of the second heating element. The first guide end 13 and the second guide end 23 are combined to form a guide tip. The guide tip provides a sharp guide, making it easy to insert into the interior of a cigarette or other object that needs to be heated and atomized, and is convenient to operate.

[0065] A tubular heating element is used to replace the heating element in the existing technology. It is combined with the existing shell, atomizer, power supply, host computer control center and other basic structures to form a heated non-combustible atomizing device. Corresponding adaptive improvements can be made according to the structural matching relationship of the relevant components.

[0066] The guide tip facilitates insertion into the interior of items such as cigarettes that require heating and atomization; the tubular heating element has high specific strength performance, meeting strength requirements while being lightweight, reducing the energy required for the heating element to heat up, thereby increasing the heating rate of the object being heated; it reduces costs, has a simple and compact structure, simplifies the process, is easy to operate, has good product quality consistency, and enhances the user experience.

[0067] The first and second heating elements are configured with the same or similar cross-sectional structures.

[0068] When the first heating element and the second heating element are set to have the same cross-sectional structure, the first heating element and the second heating element are arranged symmetrically to each other; there is no need to distinguish the directionality, which further simplifies the manufacturing process.

[0069] Specifically, both the first heating element 1 and the second heating element 2 are triangular tubular heating elements with a triangular annular cross section. In this example, a triangular tubular heating element with an equilateral triangular annular cross section is used, so there is no need to distinguish the directionality. The first heating element 1 and the second heating element 2 are fixedly connected by mutual cooperation between the first mating surface and the second mating surface of the second heating element 2 to form a heating assembly with a quadrangular tubular structure. The first guide end 13 and the second guide end 23 are both outwardly protruding triangular pyramids. The first guide end 13 and the second guide end 23 are spliced ​​together to form the guide tip of the quadrangular pyramid.

[0070] The first heating element 1 is manufactured using a one-piece molding process, in which the first guide end 13 is directly formed. Therefore, the first guide end 13 is an integral structure of the first heating element 1, constructed entirely by a one-piece molding process. The second guide end 23, like the second heating element 2, is also an integral structure constructed entirely by a one-piece molding process. The inner end of the first electrical connection wire 12 extends along the inner cavity of the first heating element 1 and is fixedly connected to the inner surface of the first guide end 13. The second guide end 23 and the second heating element 2 are also an integral structure constructed entirely by a one-piece molding process. The inner end of the second electrical connection wire 22 extends along the inner cavity of the second heating element 2 and is fixedly connected to the inner surface of the second guide end 23.

[0071] Furthermore, the position of the first mating surface near the opening end and the position of the second mating surface near the opening end are fixedly connected by welding at the first welding point 15, such as by conductive adhesive bonding; the other parts of the first mating surface except for the welding position are fixedly connected to the other parts of the second mating surface except for the welding position by insulating material 16, such as by insulating adhesive bonding.

[0072] Furthermore, an encapsulation sleeve 4 is set outside the guide tip. The encapsulation sleeve 4 is fixedly bonded to the outer surface of the guide tip through the encapsulation layer 41. The material of the encapsulation layer is a high-temperature resistant insulating material, thereby improving the service life and stable and reliable performance of the heating component.

[0073] The encapsulation sleeve 4 adopts a four-sided pyramidal sleeve structure adapted to the guide tip; a limiting groove is provided on the outer surface of the guide tip, and the encapsulation sleeve 4 is limited and locked in the groove; and the maximum side length of the outer surface of the encapsulation sleeve 4 is consistent with the side length of the outer surface of the first heating element 1 and the second heating element 2, so that the lower edge of the outer surface of the encapsulation sleeve 4 is aligned with the outer side surface of the first heating element 1 and the second heating element 2, resulting in a neat and beautiful appearance.

[0074] The inner cavities of the first and second heating elements can be filled with high-temperature resistant insulating materials for encapsulation, further improving structural stability and reliability.

[0075] 1. The heating element is composed of two tubes, and the heating unit and the support unit are combined into one, which has a simple structure and low manufacturing cost;

[0076] 2. The heating element has a small overall mass and requires less energy, which helps to increase the heating speed and reduce energy consumption;

[0077] 3. The heating element can directly transfer heat to the tobacco, and the low thermal resistance between the heating element and the tobacco results in low energy consumption.

[0078] 4. If the TCR effect of the pipe fittings or the thermocouples welded to the pipe fittings are used for temperature control, there is no delay in temperature control, the temperature control accuracy is high, and the flue gas tastes good.

[0079] 5. The conductive path enters from the middle of the pipe along the electrical connection line, passes through the guide tip of the pipe conductor, and then flows through the pipe and the welded conductive connection point to another pipe and another wire, forming a loop; the reverse is also true.

[0080] 6. The triangular cross-section shell has better contact heating, strength and stability.

[0081] 7. The fittings should be made of conductive ceramic or heating wire materials with a resistivity range of 0.1 μΩcm to 10 μΩcm (to be calculated). Optional materials include: XXXX.

[0082] 8. The internal cavity gaps can be filled and sealed with high-temperature resistant materials (such as inorganic adhesives and glass glazes).

[0083] Example 2: Figures 6-10 As shown, based on Example 1,

[0084] The first zero-two heating element 102 and the second zero-two heating element 202 are used as alternatives to the first heating element and the second heating element. Both the first zero-two heating element 102 and the second zero-two heating element 202 are tubular heating elements with a semi-circular cross-section. The first zero-two heating element 102 and the second zero-two heating element 202 are fixedly connected by surface-to-surface contact to form a cylindrical tubular heating assembly. The manufacturing process of the tubular heating element with a semi-circular cross-section is more convenient.

[0085] Correspondingly, both the first zero-two guide end 132 and the second zero-two guide end 232 are outwardly protruding semi-conical shapes, and the first zero-two guide end 132 and the second zero-two guide end 232 are spliced ​​together to form a conical zero-two guide tip.

[0086] The zero-two encapsulation sleeve 42 also uses a conical sleeve adapted to the zero-two guide tip.

[0087] Furthermore, the maximum outer diameter of the zero-two encapsulation sleeve 42 is consistent with the outer diameter of the cylindrical tubular heating component.

[0088] Example 3: Figures 11-15 As shown, based on Embodiment 1, shorter first zero-three electrical connection wire 123 and second zero-three electrical connection wire 223 are used as alternatives to the first electrical connection wire and the second electrical connection wire.

[0089] The inner end of the first 03 electrical connection wire is fixedly connected to the inner cavity of the first heating element near the opening end, and the inner end of the second 03 electrical connection wire is fixedly connected to the inner cavity of the second heating element near the opening end.

[0090] The first 03 mating surface near the closed end and the second 03 mating surface near the closed end are fixedly connected by welding point 153. The other parts of the first 03 mating surface, excluding the welding position, are fixedly connected to the other parts of the second 03 mating surface, excluding the welding position, by insulating material 163. The conductive trajectory also forms a circuit through the welding connection point.

[0091] Example 4: Figures 16-20 As shown, based on Embodiments 2 and 3, a first heating element 104 and a second heating element 204 with a semi-circular cross-section are used as alternatives. The first heating element 104 and the second heating element 204 are fixedly connected in surface-to-surface contact and are combined to form a heating assembly with a cylindrical tubular structure.

[0092] It is combined with the shorter first zero-three electrical connection line 123 and the second zero-three electrical connection line 223.

[0093] Correspondingly, the first zero-four guide end 134 and the second zero-four guide end 234 are also outwardly protruding semi-conical shapes. The first zero-four guide end 134 and the second zero-four guide end 234 are spliced ​​together to form a conical zero-two guide tip.

[0094] The positions of the first 04 mating surfaces near the open end and the second 04 mating surfaces near the open end are fixedly connected by welding point 154, and the positions of the first 04 mating surfaces corresponding to the first 04 guide ends and the second 04 mating surfaces corresponding to the second 04 guide ends are in contact and connected. The parts of the first 04 mating surfaces, excluding the welding positions and the first 04 guide ends, are fixedly connected to the parts of the second 04 mating surfaces, excluding the welding positions and the second 04 guide ends, by insulating material 164. The conductive trajectory also forms a circuit through the welding connection points.

[0095] This invention is not limited to the above-described optional embodiments. Anyone can derive other various forms of products under the guidance of this invention. However, regardless of any changes made in their shape or structure, any technical solution that falls within the scope of the claims of this invention shall be protected by this invention.

Claims

1. A combined tubular heating element, characterized in that: It includes a first heating element and a second heating element, both of which are tubular components that are closed at one end and open at the other end; The first heating element is fixedly connected to the second heating element through the first mating surface and the second mating surface of the second heating element, thus forming a heating assembly with a tubular structure. The inner cavity of the first heating element is provided with a first electrical connection wire, which extends from the open end of the first heating element to the outside of the first heating element. The inner cavity of the second heating element is provided with a second electrical connection wire, which extends from the open end of the second heating element to the outside of the second heating element. The closed end of the first heating element is provided with a first guide end, and the closed end of the second heating element is provided with a second guide end. The first guide end and the second guide end are combined to form a guide tip. Both the first and second heating elements are made of stainless steel, NiCr, or FeCrAl resistance wire materials. The inner cavities of the first heating element and the second heating element are respectively filled with high-temperature resistant materials.

2. The combined tubular heating element according to claim 1, characterized in that: The first heating element and the second heating element have the same or similar cross-sections and are arranged symmetrically to each other.

3. The combined tubular heating assembly according to claim 2, characterized in that: The first heating element and the second heating element are both triangular tubular heating elements with triangular annular cross sections; the first heating element and the second heating element are fixedly connected by surface-to-surface contact, and are combined to form a heating assembly with a quadrangular tubular structure; the first guide end and the second guide end are both outwardly protruding triangular pyramids, and the first guide end and the second guide end are spliced ​​together to form a quadrangular pyramidal guide tip.

4. The combined tubular heating assembly according to claim 3, characterized in that: The first guide end and the first heating element are integral structures formed by a one-time molding process. The second guide end and the second heating element are also integral structures formed by a one-time molding process. The inner end of the first electrical connection wire extends along the inner cavity of the first heating element to be fixedly connected to the inner surface of the first guide end. The second guide end and the second heating element are also integral structures formed by a one-time molding process. The inner end of the second electrical connection wire extends along the inner cavity of the second heating element to be fixedly connected to the inner surface of the second guide end.

5. The combined tubular heating assembly according to claim 4, characterized in that: The first mating surface near the opening end and the second mating surface near the opening end are fixedly connected by welding, and the other parts of the first mating surface except for the welding position and the other parts of the second mating surface except for the welding position are fixedly connected by insulating material.

6. The combined tubular heating assembly according to claim 5, characterized in that: The guide tip is further provided with an encapsulation sleeve, which is fixedly bonded to the outer surface of the guide tip by an encapsulation layer; the encapsulation layer is made of a high-temperature resistant insulating material.

7. The combined tubular heating element according to claim 6, characterized in that: The encapsulation sleeve is a four-sided pyramid sleeve adapted to the guide tip: the outer surface of the guide tip is provided with a limiting groove, and the encapsulation sleeve is limited and locked in the groove: the maximum side length of the outer surface of the encapsulation sleeve is consistent with the side length of the outer surface of the first heating element and the second heating element.

8. The combined tubular heating element according to claim 2, characterized in that: Both the first heating element and the second heating element are tubular heating elements with a semi-circular cross-section; the first heating element and the second heating element are fixedly connected by surface-to-surface contact, and are combined to form a cylindrical tubular heating assembly. Both the first guide end and the second guide end are outwardly protruding semi-conical shapes, and the first guide end and the second guide end are spliced ​​together to form a conical guide tip; The guide tip is also provided with an encapsulation sleeve, which is also a conical sleeve adapted to the guide tip. The maximum outer diameter of the encapsulation sleeve is the same as the outer diameter of the cylindrical tubular heating element.

9. The combined tubular heating assembly according to claim 5, characterized in that: The inner end of the first electrical connection wire is fixedly connected to the inner cavity of the first heating element near the opening end, and the inner end of the second electrical connection wire is fixedly connected to; The inner cavity of the second heating element is located near the opening end; The first mating surface near the closed end and the second mating surface near the closed end are fixed and electrically connected by welding. The other parts of the first mating surface, except for the welding position, and the other parts of the second mating surface, except for the welding position, are fixedly connected by insulating material.

10. The combined tubular heating assembly according to claim 9, characterized in that: Both the first heating element and the second heating element are tubular heating elements with a semi-circular cross-section. The first heating element and the second heating element are fixedly connected by surface-to-surface contact and are combined to form a cylindrical tubular heating assembly. Both the first guide end and the second guide end are outwardly protruding semi-conical shapes, and the first guide end and the second guide end are spliced ​​together to form a conical guide tip; Alternatively, the position of the first mating surface corresponding to the first guide end and the position of the second mating surface corresponding to the second guide end may be in contact with each other.

11. A heating non-combustible atomizing device, characterized in that: Includes the combined tubular heating element as described in any one of claims 1 to 10.

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