CN117297196A

CN117297196A - Heating element, preparation method thereof and heating non-combustion smoking set

Info

Publication number: CN117297196A
Application number: CN202311493665.6A
Authority: CN
Inventors: 马子扬; 周小华; 李婉; 沈加艮
Original assignee: Shenzhen Woody Vapes Technology Co Ltd
Current assignee: Shenzhen Woody Vapes Technology Co Ltd
Priority date: 2023-11-09
Filing date: 2023-11-09
Publication date: 2023-12-29

Abstract

The application provides a heating element, a preparation method thereof and a heating non-combustion smoking set. The heating body comprises a tube body, a heating wire and two electrodes, wherein a placement groove is formed in the outer side wall of the tube body, and the heating wire is embedded in the placement groove and is fixed in the placement groove through an adhesive material; two ends of the heating wire are respectively and electrically connected with the two electrodes, and one end of each electrode extends out of the arrangement groove. The preparation method of the heating element comprises the following steps: providing a pipe body with a mounting groove on the outer side wall; embedding the heating wire into the mounting groove; filling an adhesive material in the placement groove to fix the heating wire in the placement groove; and two ends of the heating wire are respectively and electrically connected with the two electrodes. The heating body of this application need not to print the sintering at the preparation process, therefore the preparation process is simpler, can also avoid appearing causing the problem that local ignition was broken circuit because of the printing is uneven simultaneously.

Description

Heating element, preparation method thereof and heating non-combustion smoking set

Technical Field

The application belongs to the technical field of heating non-combustion smoking sets, and particularly relates to a heating body, a preparation method thereof and a heating non-combustion smoking set.

Background

The heating element of the existing heating non-combustion smoking set is mainly a metal ceramic heating element, and is formed by screen printing metal tungsten slurry on a ceramic casting blank body, hot-pressing lamination, and then sintering ceramic and metal together under the protection of a hydrogen atmosphere at 1600 ℃. In the preparation process of the heating element, uneven printing is easy to cause local ignition and circuit breaking, multiple times of printing and sintering are needed, and the preparation process is complex.

Disclosure of Invention

The embodiment of the application provides a heating element, a preparation method thereof and a heating non-combustion smoking set, so as to solve the problems of local ignition and circuit breaking and complex preparation process of the existing heating element.

In a first aspect, an embodiment of the present application provides a heating element, where the heating element includes a tube body, a heating wire and two electrodes, a positioning groove is formed in an outer side wall of the tube body, and the heating wire is embedded in the positioning groove and is fixed in the positioning groove by an adhesive material; the two ends of the heating wire are respectively and electrically connected with the two electrodes, and one end of each electrode extends out of the corresponding placement groove.

Optionally, the placement groove comprises X longitudinal grooves and Y connecting grooves, X is more than or equal to 2, and Y=X-1; the length direction of the longitudinal grooves is the axial direction of the pipe body, and X longitudinal grooves and Y connecting grooves are alternately distributed along the circumferential direction of the pipe body and are communicated in sequence from head to tail.

Optionally, two adjacent longitudinal grooves are communicated with the connecting groove between the two longitudinal grooves to form a U-shaped groove or an N-shaped groove.

Optionally, the placement groove is a spiral groove spirally arranged around the central axis of the pipe body.

Optionally, the depth of the placement groove is 0.1 mm-1 mm; and/or the shortest distance between the placement groove and the end part of the pipe body is 0.8 mm-1.2 mm.

Optionally, the adhesive material is filled in a gap between the outer part of the heating wire and the mounting groove, and is flush with the outer side wall surface of the pipe body.

Alternatively, both of the electrodes extend from the same end of the tube.

Optionally, the tube body is a glass tube or a ceramic tube; and/or the heating wire is a carbon fiber wire, a nickel-plated carbon fiber wire or a silver-plated carbon fiber wire; and/or the electrode is a copper electrode, a silver electrode or a nickel electrode; and/or the bonding material is glass glaze, inorganic glue or polyimide.

In a second aspect, embodiments of the present application further provide a method for preparing a heating element, including the steps of: providing a pipe body with a mounting groove on the outer side wall; embedding a heating wire into the mounting groove; filling an adhesive material in the placement groove to fix the heating wire in the placement groove; and two ends of the heating wire are respectively and electrically connected with the two electrodes.

In a third aspect, embodiments of the present application further provide a heating non-combustion smoking set, where the heating non-combustion smoking set includes the heating element described above, or the heating non-combustion smoking set includes the heating element manufactured by the manufacturing method described above.

The heater that this embodiment provided includes body, heater and two electrodes, the mounting groove has been seted up to the lateral wall of body, the heater inlays and locates in the mounting groove and is fixed in the mounting groove through bonding material, the both ends of heater are connected with two electrode electricity respectively, this heater only need with the heater embedding body in the mounting groove when the preparation, then fill bonding material in the mounting groove in order to be fixed in the mounting groove with the heater, the both ends with the heater respectively with two electrode electricity be connected can, whole preparation process need not to print the sintering, consequently, the preparation process is simpler, the problem that causes local ignition circuit breaker because of the printing inequality still can be avoided appearing simultaneously.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings that are required to be used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained from these drawings without inventive effort to a person skilled in the art. Wherein like reference numerals refer to like parts throughout the following description.

Fig. 1 is a schematic structural view of a heating element provided in an embodiment of the present application.

FIG. 2 is one of schematic structural views of the heat-generating body shown in FIG. 1 at another view angle.

FIG. 3 is a second schematic view of the heat-generating body shown in FIG. 1 from another view.

Fig. 4 is a schematic diagram of the heating element shown in fig. 1, with the adhesive omitted.

Fig. 5 is one of schematic structural views of the heat-generating body shown in fig. 4 at another view angle.

FIG. 6 is a second schematic structural view of the heat-generating body shown in FIG. 4 at another view angle.

FIG. 7 is a third schematic structural view of the heat-generating body shown in FIG. 4 at another view angle.

Fig. 8 is a schematic diagram of the heating element shown in fig. 4, with the heating wire omitted.

FIG. 9 is one of schematic structural views of the heat-generating body shown in FIG. 8 at another view angle.

FIG. 10 is a second schematic structural view of the heat-generating body shown in FIG. 8 at another view angle.

FIG. 11 is a third schematic structural view of the heat-generating body shown in FIG. 8 at another view angle.

FIG. 12 is a schematic cross-sectional view of the heat-generating body shown in FIG. 11 in the A-A direction.

FIG. 13 is a flowchart of a method for manufacturing a heating element according to an embodiment of the present application.

Reference numerals illustrate:

100. a tube body; 110. a placement groove; 111. a longitudinal slot; 112. a connecting groove; 200. a heating wire; 300. an electrode; 400. an adhesive material.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It will be apparent that the described embodiments are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.

In the description of the present application, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate an orientation or positional relationship based on that shown in the drawings, merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In this application, the term "exemplary" is used to mean "serving as an example, instance, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. The term "and/or" includes any and all combinations of one or more of the associated listed items. The following description is presented to enable any person skilled in the art to make and use the application. In the following description, details are set forth for purposes of explanation. It will be apparent to one of ordinary skill in the art that the present application may be practiced without these specific details. In other instances, well-known structures and processes have not been shown in detail to avoid obscuring the description of the present application with unnecessary detail. Thus, the present application is not intended to be limited to the embodiments shown, but is to be accorded the widest scope consistent with the principles and features disclosed herein.

The embodiment of the application provides a heating element, as shown in fig. 1 to 12, the heating element comprises a tube body 100, a heating wire 200 and two electrodes 300, a placement groove 110 is formed in the outer side wall of the tube body 100, and the heating wire 200 is embedded in the placement groove 110 and is fixed in the placement groove 110 through an adhesive material 400; the two ends of the heating wire 200 are respectively electrically connected with the two electrodes 300, and one ends of the two electrodes 300 are respectively extended out of the mounting groove 110 to realize power connection. The two electrodes 300 are used for respectively connecting the positive electrode and the negative electrode of the power supply to realize power connection.

According to the heating element provided by the embodiment of the application, the mounting groove 110 is formed in the outer side wall of the tube body 100, the heating wire 200 is embedded in the mounting groove 110 and is fixed in the mounting groove 110 through the bonding material 400, two ends of the heating wire 200 are respectively electrically connected with the two electrodes 300, the heating element is prepared by embedding the heating wire 200 into the mounting groove 110 of the tube body 100, then the mounting groove 110 is filled with the bonding material 400 to fix the heating wire 200 in the mounting groove 110, and finally the two ends of the heating wire 200 are respectively electrically connected with the two electrodes 300.

In addition, when the heating body is prepared by adopting a printing sintering process in the prior art, the hydrogen atmosphere is required to be protected during sintering, the energy consumption is high, a large amount of organic gas volatilizes during the sintering process, the environment is polluted, and the environment is not protected; the heating element preparation process does not need to be subjected to printing and sintering, so that energy consumption and cost are reduced, a large amount of organic gas is not volatilized, and the heating element is more environment-friendly.

Specifically, the tube body 100 is configured in a cylindrical shape so as to be better matched with a conventional cylindrical cigarette so that the cigarette can be inserted into the tube body 100 for use. Preferably, the tube body 100 is made of a material resistant to high temperature (above 300 ℃, for example, 300 ℃ -1000 ℃), for example, the tube body 100 may be made of glass or ceramic, that is, the tube body 100 may be a glass tube (for example, a quartz glass tube or a glass ceramic tube) or a ceramic tube, so as to avoid the tube body 100 from being split due to heating during the use of the heating element, and the safety is higher.

Optionally, the heating filament 200 may be made of carbon fiber or other high temperature resistant metal materials, for example, the heating filament 200 may be carbon fiber filament, nickel-plated carbon fiber filament or silver-plated carbon fiber filament, and the carbon fiber is not only high temperature resistant, but also has the characteristics of rapid temperature rise, small thermal lag, uniform heating, long heat radiation transmission distance, and the like, and the carbon fiber not only can normally conduct heat during heating, but also has an infrared radiation function, and can radiate infrared waves in a certain space around for heating, that is, the carbon fiber can transmit for heating and radiating for heating through the tube body 100 during heating, so as to achieve a heating effect of combining heat conduction and heat radiation (that is, infrared radiation heating), therefore, the heating efficiency of the carbon fiber is better than that of metal or metal alloy, and the heat radiation makes cigarettes difficult to produce burnt flavor, so that the heating effect is better. Further, the carbon fiber may be nickel plated carbon fiber or silver plated carbon fiber.

In some embodiments of the present application, as shown in fig. 8 to 11, the placement groove 110 includes X longitudinal grooves 111 and Y connection grooves 112, X is 2 or more, y=x-1; the length direction of the longitudinal grooves 111 is the axial direction of the pipe body 100, and the X longitudinal grooves 111 and the Y connecting grooves 112 are alternately distributed along the circumferential direction of the pipe body 100 and are sequentially communicated from head to tail. In other words, the heating wire 200 is disposed on the outer sidewall of the pipe body 100 in a longitudinally winding manner, and the shape of the heating wire 200 corresponds to the shape of the seating groove 110.

Specifically, two adjacent longitudinal grooves 111 and the connecting groove 112 located therebetween may be communicated to form a U-shaped groove or an N-shaped groove. Preferably, the X longitudinal grooves 111 are uniformly distributed along the circumferential direction of the tube body 100 to ensure uniform longitudinal heating, so that after the cigarettes are inserted into the tube body 100, the cigarettes have better heating uniformity and better taste.

Alternatively, the specific number of the longitudinal grooves 111 and the connection grooves 112 may be set according to actual needs. As shown in fig. 8 to 11, the placement groove 110 includes six longitudinal grooves 111 and five connecting grooves 112 (i.e., x=6, y=5), and six longitudinal grooves 111 and five connecting grooves 112 are alternately distributed along the circumferential direction of the pipe body 100 and are sequentially connected end to end, and two adjacent longitudinal grooves 111 are connected with the connecting groove 112 located therebetween to form a U-shaped groove.

In other embodiments of the present application, the seating groove 110 is a spiral groove spirally disposed around the central axis of the pipe body 100, and the heating wire 200 is embedded in the spiral groove to form a spiral structure. In other words, the heating wire 200 is disposed on the outer sidewall of the pipe body 100 in a transverse winding manner, and the shape of the heating wire 200 corresponds to the shape of the installation groove 110.

Alternatively, the depth of the placement groove 110 may be 0.1mm to 1mm, for example, 0.1mm, 0.2mm, 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, or 1mm, which may be specifically set according to actual requirements, and is not limited herein.

Alternatively, as shown in fig. 11, the shortest distance L between the placement groove 110 and the end of the pipe body 100 may be 0.8mm to 1.2mm, for example, 0.8mm, 0.82mm, 0.85mm, 0.88mm, 0.9mm, 0.92mm, 0.95mm, 0.98mm, 1mm, or 1.2mm, etc., which may be specifically set according to actual needs, and is not limited only herein.

Alternatively, the adhesive material 400 is filled in a gap between the outside of the heating wire 200 and the seating groove 110, and is flush with the outer sidewall surface of the pipe body 100. That is, the adhesive 400 is filled to be flush with the outer sidewall surface of the tube body 100, so that the overall appearance of the heating element can be more beautiful and the assembly process is facilitated.

Specifically, the adhesive material 400 can withstand high temperatures of 300 ℃ or higher (e.g., 300 ℃ to 1000 ℃) to ensure that the adhesive material 400 can still maintain adhesion firmness when the heating wire 200 heats. Alternatively, the bonding material 400 may be a glass frit, an inorganic gel, or a polyimide or other high temperature resistant material. It can be appreciated that the adhesive material 400 has an effect of isolating air in addition to the effect of fixing the heating wire 200 to the mounting groove 110, and the heating wire 200 is wrapped by the adhesive material 400, so that the heating wire 200 is not contacted with external oxygen, and when the heating wire 200 heats in the energized state, the possibility of oxidizing the heating wire 200 is reduced, and the service life of the heating wire 200 is prolonged.

In the preferred embodiment of the present application, two electrodes 300 extend from the same end of the tube body 100, so that the space occupied by the heating element can be reduced, which is beneficial to miniaturization of the product, and meanwhile, the heating element is convenient to electrically connect with a power supply when in use. For example, in the embodiment in which two adjacent longitudinal grooves 111 communicate with the connecting groove 112 therebetween to form a U-shaped groove, it is preferable that the longitudinal grooves 111 are provided in a double number such that both ends of the heating wire 200 are located at the same end of the tube body 100, thereby facilitating the protrusion of two electrodes 300 from the same end of the tube body 100.

Of course, in other embodiments, two electrodes 300 may be disposed to protrude from both ends of the tube body 100, as long as the power receiving function is achieved. For example, in the embodiment in which two adjacent longitudinal grooves 111 are communicated with the connecting groove 112 therebetween to form a U-shaped groove, when the longitudinal grooves 111 are singular, both ends of the heating wire 200 are located at both ends of the tube body 100, respectively, so that it is more suitable to protrude two electrodes 300 from both ends of the tube body 100, respectively. In the embodiment in which the two adjacent longitudinal grooves 111 are connected to the connecting groove 112 therebetween to form an N-shaped groove, and in the embodiment in which the mounting groove 110 is a spiral groove spirally disposed around the central axis of the pipe body 100, since both ends of the heating wire 200 in the two embodiments are also located at both ends of the pipe body 100, respectively, it is also more suitable to dispose two electrodes 300 so as to protrude from both ends of the pipe body 100, respectively.

Specifically, the electrode 300 is made of a conductive metal material, for example, the electrode 300 may be a copper electrode (such as a copper wire), a silver electrode (such as a silver wire), or a nickel electrode (such as a nickel wire), which may be specifically set according to practical requirements. Alternatively, the two electrodes 300 may be electrically connected to two ends of the heating wire 200 through connection terminals, for example, copper terminals or other conductive metal terminals may be used to press the two electrodes 300 against the two ends of the heating wire 200.

The embodiment of the application also provides a preparation method of the heating element, as shown in fig. 13, the preparation method of the heating element comprises the following steps:

s1, providing a pipe body 100 with a mounting groove 110 on the outer side wall;

s2, embedding a heating wire 200 into the mounting groove 110;

s3, filling an adhesive material 400 in the mounting groove 110 to fix the heating wire 200 in the mounting groove 110;

and S4, electrically connecting two ends of the heating wire 200 with the two electrodes 300 respectively.

Specifically, in the step S1, the tube body 100 is cylindrical, so as to better match with a conventional cylindrical cigarette, so that the cigarette can be inserted into the tube body 100 for use. The tube body 100 may be a glass tube (e.g., a quartz glass tube or a glass ceramic tube) or a ceramic tube, so as to avoid the tube body 100 from being cracked due to heating during the use of the heating element, and the safety is higher. When the pipe body 100 is a glass pipe, the seating groove 110 may be formed at an outer sidewall of the glass pipe by a post-process; when the pipe body 100 is a ceramic pipe, the placement groove 110 may be integrally formed with the ceramic pipe, so that a process of post-processing the placement groove 110 may be omitted, and the manufacturing is more convenient.

Alternatively, the depth of the placement groove 110 may be 0.1mm to 1mm, for example, 0.1mm, 0.2mm, 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, or 1mm, which may be specifically set according to actual requirements, and is not limited herein. As shown in fig. 11, the shortest distance L between the placement groove 110 and the end of the pipe body 100 is 0.8mm to 1.2mm, for example, may be 0.8mm, 0.82mm, 0.85mm, 0.88mm, 0.9mm, 0.92mm, 0.95mm, 0.98mm, 1mm, or 1.2mm, which may be specifically set according to actual requirements, and is not limited only herein.

In the step S1, optionally, the placement groove 110 on the outer sidewall of the pipe body 100 includes X longitudinal grooves 111 and Y connection grooves 112, X is greater than or equal to 2, y=x-1; the length direction of the longitudinal grooves 111 is the axial direction of the pipe body 100, the X longitudinal grooves 111 and the Y connecting grooves 112 are alternately distributed along the circumferential direction of the pipe body 100 and are sequentially communicated from head to tail, and two adjacent longitudinal grooves 111 and the connecting grooves 112 located between the two adjacent longitudinal grooves 111 can be communicated to form a U-shaped groove or an N-shaped groove. Alternatively, the installation groove 110 may be a spiral groove spirally provided around the central axis of the pipe body 100, and the heating wire 200 is embedded in the spiral groove to form a spiral structure.

In the step S2, the shape of the heating filament 200 corresponds to the shape of the mounting groove 110, the heating filament 200 may be made of carbon fiber or other high temperature resistant metal materials, for example, the heating filament 200 may be a carbon fiber filament, a nickel-plated carbon fiber filament or a silver-plated carbon fiber filament, the carbon fiber is not only high temperature resistant, but also has the characteristics of rapid temperature rise, small thermal lag, uniform heating, long heat radiation transmission distance, and the like, the carbon fiber not only can normally conduct heat during heating, but also has an infrared radiation function, and can heat surrounding space by radiating infrared waves, that is, when the carbon fiber heats, the heat conducting and the heat radiation (that is, the infrared radiation heating) can be conducted through the tube body 100, so as to achieve the heating effect of combining heat conduction and heat radiation (that is, the infrared radiation heating) is better than that of metal or metal alloy, and the heat radiation makes cigarettes not easy to produce bad taste, so that the heating effect is better.

In the step S3, filling the mounting groove 110 with the adhesive material 400 includes: the adhesive 400 is filled in the gap between the outside of the heating wire 200 and the seating groove 110, and the adhesive 400 is filled to be flush with the outer sidewall surface of the pipe body 100. By filling the adhesive 400 flush with the outer sidewall surface of the tube body 100, the overall appearance of the heating element can be more beautiful, and the assembly process and the like can be facilitated.

Specifically, the adhesive material 400 can resist a high temperature of 300 ℃ or higher (e.g., 300 ℃ -1000 ℃) to ensure that the adhesive material 400 can still maintain the adhesive firmness when the heating wire 200 heats, for example, the adhesive material 400 can be a high temperature resistant material such as glass glaze, inorganic glue or polyimide. It can be appreciated that the adhesive material 400 has an effect of isolating air in addition to the effect of fixing the heating wire 200 to the mounting groove 110, and the heating wire 200 is wrapped by the adhesive material 400, so that the heating wire 200 is not contacted with external oxygen, and when the heating wire 200 heats in the energized state, the possibility of oxidizing the heating wire 200 is reduced, and the service life of the heating wire 200 is prolonged.

In the step S4, the electrode 300 is made of a conductive metal material, for example, the electrode 300 may be a copper electrode (e.g. copper wire), a silver electrode (e.g. silver wire), or a nickel electrode (e.g. nickel wire), which may be specifically set according to practical requirements. Alternatively, the two electrodes 300 may be electrically connected to two ends of the heating wire 200 through connection terminals, for example, copper terminals or other conductive metal terminals may be used to press the two electrodes 300 against two ends of the heating wire 200, and one ends of the two electrodes 300 may extend out of the accommodating groove 110 to be electrically connected. Preferably, the two electrodes 300 extend from the same end of the tube body 100, so that the space occupied by the heating element can be reduced, which is beneficial to miniaturization of the product and convenient for the heating element to be electrically connected with a power supply when in use. Of course, in other embodiments, two electrodes 300 may be disposed to protrude from both ends of the tube body 100, as long as the power receiving function is achieved.

According to the preparation method provided by the embodiment of the application, printing and sintering are not needed in the whole preparation process, so that the preparation method is simpler, and meanwhile, the problem of local ignition and circuit breaking caused by uneven printing can be avoided.

The embodiment of the application also provides a heating non-combustion smoking set, which comprises the heating element or the heating non-combustion smoking set comprises the heating element prepared by the preparation method. The heating non-combustion smoking set adopts all the technical schemes of all the embodiments, so that the heating non-combustion smoking set at least has all the beneficial effects brought by the technical schemes of the embodiments, and the detailed description is omitted.

In the foregoing embodiments, the descriptions of the embodiments are emphasized, and for parts of one embodiment that are not described in detail, reference may be made to related descriptions of other embodiments.

The heating element, the preparation method thereof and the heating non-combustion smoking set provided by the embodiment of the application are described in detail, specific examples are applied to the principle and the implementation mode of the application, and the description of the above examples is only used for helping to understand the method and the core idea of the application; meanwhile, as those skilled in the art will vary in the specific embodiments and application scope according to the ideas of the present application, the contents of the present specification should not be construed as limiting the present application in summary.

Claims

1. The heating body is characterized by comprising a tube body (100), heating wires (200) and two electrodes (300), wherein a placement groove (110) is formed in the outer side wall of the tube body (100), and the heating wires (200) are embedded in the placement groove (110) and are fixed in the placement groove (110) through an adhesive material (400); the two ends of the heating wire (200) are respectively and electrically connected with the two electrodes (300), and one end of each electrode (300) extends out of the corresponding accommodating groove (110).

2. The heat-generating body as recited in claim 1, wherein the placement groove (110) includes X longitudinal grooves (111) and Y connecting grooves (112), X is equal to or larger than 2, Y = X-1;

the length direction of the longitudinal grooves (111) is the axial direction of the pipe body (100), and X longitudinal grooves (111) and Y connecting grooves (112) are alternately distributed along the circumferential direction of the pipe body (100) and are communicated in sequence from head to tail.

3. A heat-generating body as claimed in claim 2, characterized in that two adjacent ones of the longitudinal grooves (111) communicate with the connecting groove (112) therebetween to form a U-shaped groove or an N-shaped groove.

4. The heat-generating body as recited in claim 1, wherein the placement groove (110) is a spiral groove that is spirally provided around a central axis of the tube body (100).

5. The heat-generating body as recited in any one of claims 1 to 4, characterized in that a depth of the placement groove (110) is 0.1mm to 1mm;

and/or the shortest distance between the placement groove (110) and the end part of the pipe body (100) is 0.8 mm-1.2 mm.

6. The heat-generating body as recited in any one of claims 1 to 4, characterized in that the adhesive material (400) is filled in a gap between the outside of the heating wire (200) and the placement groove (110) and is flush with an outer side wall surface of the tube body (100).

7. A heat-generating body as recited in any one of claims 1 to 4, characterized in that two of said electrodes (300) protrude from the same end of said tube body (100).

8. A heat-generating body as defined in any one of claims 1 to 4, wherein the tube body (100) is a glass tube or a ceramic tube;

and/or the heating wire (200) is a carbon fiber wire, a nickel-plated carbon fiber wire or a silver-plated carbon fiber wire;

and/or the electrode (300) is a copper electrode, a silver electrode or a nickel electrode;

and/or the bonding material (400) is glass glaze, inorganic glue or polyimide.

9. A method for producing a heat-generating body as described in any one of claims 1 to 8, comprising the steps of:

providing a pipe body (100) with a mounting groove (110) on the outer side wall;

embedding a heating wire (200) into the seating groove (110);

filling an adhesive material (400) in the seating groove (110) to fix the heating wire (200) in the seating groove (110);

and two ends of the heating wire (200) are respectively and electrically connected with the two electrodes (300).

10. A heating non-combustible smoking article, characterized in that it comprises the heat-generating body according to any one of claims 1 to 8, or the heating non-combustible smoking article comprises the heat-generating body produced by the production method according to claim 9.