Heating element and heater

Abstract

The present invention relates to the field of smoking utensils, and provides a heating body and a heater, wherein the heating body comprises: a heating portion, having a longitudinal axis and extending along the longitudinal axis, the heating portion being used to be inserted into a cigarette along the longitudinal axis; a fixing portion, located at one end of the heating portion and fixedly connected to the heating portion, an air flow inlet being provided on the fixing portion; wherein an air flow channel is provided inside the heating portion, and the air flow inlet and the air flow channel are communicated; an air vent is provided on the heating portion for connecting the air flow channel with the outside of the heating portion, so that the air flow in the air flow channel enters into the cigarette portion around the heating body through the air vent, thereby producing a preheating effect on the cigarette being heated, so that the cigarette is heated evenly.

Description

Technical Field

[0001] The embodiments of the present invention relate to the field of smoking articles, and in particular to a heating body and a heater including the heating body. Background Art

[0002] Cigarettes are a kind of addiction, which are loved by many people. However, substances such as tar and carbon monoxide in cigarettes are harmful to human health. In particular, tar contains more than ten kinds of carcinogens, which greatly affect human health. At present, governments of various countries have gradually stipulated that smoking cigarettes (cigarettes) is prohibited in public places. However, for smokers with addiction, it is impossible to completely quit smoking cigarettes. Therefore, many substitutes for simulated cigarettes have appeared on the market, such as smoking cessation lozenges, electronic cigarettes, etc.

[0003] In recent years, a low-temperature baking smoking device has appeared in electronic cigarettes, which produces smoke by low-temperature baking, greatly reducing the production of harmful substances. Low-temperature baking smoking devices on the market generally include heaters, where the heating methods of the heaters can be divided into four-sided heating and central heating. The central heating heater heats the cigarette by inserting the heater into the cigarette, baking the cigarette to produce smoke.

[0004] In the process of realizing the present invention, the inventors found that the center of the heater of the existing center-heating low-temperature baking tobacco utensils often has too high a temperature due to heat accumulation, causing the center of the cigarette to be burnt, but the outer part that is not in contact with the heating plate is often not completely baked, resulting in uneven heating of the cigarette, affecting the smoke output rate of the cigarette and the user's taste. Summary of the invention

[0005] In order to solve the problem of uneven heating of cigarettes in the prior art, an embodiment of the present invention provides a heating body and a heater including the heating body, so that the heated cigarettes are heated evenly.

[0006] In a first aspect, an embodiment of the present invention provides a heating body, the heating body comprising:

[0007] The heating part has a longitudinal axis and extends along the longitudinal axis, and the heating part is used to be inserted into the cigarette along the longitudinal axis;

[0008] A fixed portion, located at one end of the heating portion and fixedly connected to the heating portion, and an air flow inlet is provided on the fixed portion;

[0009] Wherein, an air flow channel extending along the longitudinal axis direction is provided inside the heating portion, and the air flow inlet is connected to the air flow channel;

[0010] The heating portion is provided with an air vent for connecting the air flow channel with the outside of the heating portion, so that the air flow in the air flow channel can enter the interior of the cigarette.

[0011] Optionally, there are a plurality of ventilation holes, and in the longitudinal direction of the heating portion, the ventilation holes are arranged on the heating portion at equal intervals.

[0012] Optionally, the ventilation holes include a first ventilation hole group consisting of a plurality of first ventilation holes, and a second ventilation hole group consisting of a plurality of second ventilation holes, a connecting line of centers of the plurality of first ventilation holes, a connecting line of centers of the plurality of second ventilation holes, and the longitudinal axis are parallel to each other, and in the direction of the longitudinal axis, each first ventilation hole and each second ventilation hole are alternately arranged.

[0013] Optionally, the heating portion has a first transverse axis that is perpendicular to and intersects the longitudinal axis, the first transverse axis and the longitudinal axis define a first center plane, and the ventilation holes have a plurality of holes that are symmetrical about the first center plane.

[0014] Optionally, the heating portion further has a second horizontal axis that is perpendicular to and intersects the first horizontal axis and the longitudinal axis. In the direction of the second horizontal axis, the width of the heating portion gradually decreases from the junction with the fixing portion toward a direction away from the fixing portion.

[0015] Optionally, the heat-generating portion further has a second horizontal axis that is perpendicular to and intersects the first horizontal axis and the longitudinal axis, the second horizontal axis and the longitudinal axis define a second center plane, the heat-generating portion includes a first peripheral wall, a second peripheral wall, a third peripheral wall and a fourth peripheral wall located around the airflow channel, the first peripheral wall and the fourth peripheral wall are located on the same side of the second center plane, the second peripheral wall and the third peripheral wall are respectively located on the other side of the second center plane, and a plurality of ventilation holes are respectively provided on the first peripheral wall, the second peripheral wall, the third peripheral wall and the fourth peripheral wall.

[0016] Optionally, the distance between the outer side of the first circumferential wall and the outer side of the fourth circumferential wall gradually decreases from approaching the second center plane to away from the second center plane, and the distance between the outer side of the second circumferential wall and the outer side of the third circumferential wall gradually decreases from approaching the second center plane to away from the second center plane.

[0017] Optionally, the heating part also includes a fifth peripheral wall, a sixth peripheral wall, a seventh peripheral wall and an eighth peripheral wall, the fifth peripheral wall is used to connect the first peripheral wall and the fourth peripheral wall, the sixth peripheral wall is used to connect the first peripheral wall and the second peripheral wall, the seventh peripheral wall is used to connect the second peripheral wall and the third peripheral wall, and the eighth peripheral wall is used to connect the third peripheral wall and the fourth peripheral wall.

[0018] The heating part also includes a first end wall, a second end wall and a third end wall, the first end wall, the second end wall and the third end wall are located at one end of the first peripheral wall, the fixing part is located at the other end opposite to the first peripheral wall, the first end wall and the second center plane are perpendicular and intersecting, the first end wall is used to connect the sixth peripheral wall and the eighth peripheral wall, the second end wall is used to cover the first peripheral wall, the fourth peripheral wall and the fifth peripheral wall, the height of the second end wall gradually decreases from close to the second center plane to away from the second center plane; the third end wall is used to cover the second peripheral wall, the third peripheral wall and the seventh peripheral wall, the height of the second end wall gradually decreases from close to the second center plane to away from the second center plane.

[0019] Optionally, the heating portion includes a main body and two wing petals, and the two wing petals are respectively located on opposite sides of the main body.

[0020] Optionally, the main body is provided with at least one first ventilation hole group penetrating through two opposite sides of the main body, and in the longitudinal direction of the heating portion, a plurality of first ventilation holes in the first ventilation hole group are arranged on the main body at equal intervals.

[0021] Optionally, two first ventilation hole groups are provided, connecting lines of centers of a plurality of first ventilation holes in each first ventilation hole group are parallel to each other, and the wing petal is located between the two first ventilation hole groups.

[0022] Optionally, each of the wing petals is provided with a second ventilation hole group penetrating through opposite sides of the wing petal, and in the longitudinal direction of the heating portion, a plurality of second ventilation holes in the second ventilation hole group are arranged on the wing petal at equal intervals.

[0023] Optionally, in the longitudinal direction of the heating portion, the first ventilation holes and the second ventilation holes are arranged alternately.

[0024] Optionally, the heating portion is in the shape of a cylinder with one end open.

[0025] In a second aspect, an embodiment of the present invention provides a heater, comprising:

[0026] A heating body and a bracket, wherein the bracket is provided with a receiving cavity for receiving cigarettes, the heating body is exposed in the receiving cavity, and the heating body is suitable for being inserted into the inside of the cigarette, wherein the heating body is any of the heating bodies described above.

[0027] Optionally, the heater further includes a coil, and a first limiting portion and a second limiting portion are provided at intervals on the outer side of the bracket, and the coil is located between the first limiting portion and the second limiting portion.

[0028] Compared with the prior art, in the embodiment of the present invention, an air flow channel is provided in the heating body, and an air vent connected to the air flow channel is provided on the heating part. As the user draws breath, the outside air flows out of the heating body through the air flow channel and the air vent, and carries the smoke with a certain temperature to diffuse to the cigarette parts around the heating body, thereby preheating the cigarette being heated and heating the cigarette evenly. When the outside air with a lower temperature enters the air flow channel inside the heating part, it will take away a certain amount of heat from the center of the heating part, reduce the temperature of the center of the heating part, avoid the center of the cigarette being burnt, ensure the taste of the user's breath, and facilitate the maximum production of smokeable smoke from the cigarette. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0030] Figure 1 is a three-dimensional diagram of a heating body provided in Embodiment 1 of the present invention;

[0031] Figure 2 The first embodiment provides Figure 1 A stereoscopic image of the heating body from another perspective;

[0032] Figure 3 is a three-dimensional cross-sectional view of the heating body provided in Example 1;

[0033] Figure 4 The first embodiment provides Figure 1 A top view of the heating body in;

[0034] Figure 5 is a three-dimensional diagram of a heating body provided by another embodiment of the present invention;

[0035] Figure 6 is a three-dimensional diagram of a heating body provided in Embodiment 2 of the present invention;

[0036] Figure 7 is a three-dimensional exploded view of a heater provided in Embodiment 3 of the present invention;

[0037] Figure 8 is a planar cross-sectional view of the heater provided in the third embodiment containing a cigarette;

[0038] Fig. 9 is a three-dimensional diagram of the chimney of the heater provided in the third embodiment;

[0039] Fig.10is a three-dimensional diagram of the bracket of the heater provided in Example 3;

[0040] Fig.11 It is a three-dimensional exploded view of the base of the heater provided in Example 3.

[0041] Description of the accompanying drawings for the specific implementation:

[0042] DETAILED DESCRIPTION

[0043] In order to facilitate the understanding of the present invention, the present invention is described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element, or there can be one or more centered elements therebetween. When an element is described as "connected to" another element, it can be directly connected to the other element, or there can be one or more centered elements therebetween. The terms "upper", "lower", "left", "right", "inside", "outside" and similar expressions used in this specification are for illustrative purposes only.

[0044] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in this specification and in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used in this specification includes any and all combinations of one or more of the related listed items.

[0045] The heating body or the heater including the heating body disclosed in the present invention is used in low-temperature baking tobacco utensils, and the heating body is suitable for being inserted into the interior of a cigarette, and the heat generated by the heating body bakes the cigarette to generate smoke that can be directly inhaled by the user. This method of inserting the cigarette into the interior for heating is called central heating. In the existing central heating method, the heat is accumulated on the heating body, resulting in a higher temperature in the center of the cigarette, which is often burnt and has a burnt smell, while the outer part of the cigarette is not completely baked, which affects the user's taste and reduces the smoke output rate of the cigarette.

[0046] The cigarette disclosed in the present invention can also be any material that provides volatile components by heating, and includes any tobacco-containing material and, for example, can include one or more of tobacco, tobacco derivatives, expanded tobacco, reconstituted tobacco or tobacco substitutes.

[0047] Embodiment 1

[0048] like Figures 1 to 4As shown, a heating body 1 is provided in the first embodiment of the present invention, and the heating body 1 comprises a fixing portion 10 and a heating portion 11 . The fixing portion 10 is in the shape of a flat plate, and is provided with fixing holes 101 penetrating through opposite sides of the fixing portion 10 .

[0049] The heating part 11 is a longitudinal structure, and has a longitudinal axis 141, a first transverse axis 142, and a second transverse axis 143. The longitudinal axis 141, the first transverse axis 142, and the second transverse axis 143 are perpendicular to each other and intersect each other. The longitudinal axis 141 and the first transverse axis 142 define a first center plane 144, that is, the longitudinal axis 141 and the first transverse axis 142 are located in the first center plane 144, and the longitudinal axis 141 and the second transverse axis 143 define a second center plane 145, that is, the longitudinal axis 141 and the second transverse axis 143 are located in the second center plane 145, and the second center plane 145 and the first center plane 144 are perpendicular to each other and intersect each other. The direction in which the first transverse axis 142 is located is the left-right direction, the direction in which the second transverse axis 143 is located is the front-back direction, and the direction in which the longitudinal axis 141 is located is the up-down direction.

[0050] The heating portion 11 includes a first peripheral wall 111, a second peripheral wall 112, a third peripheral wall 113, a fourth peripheral wall 114, a fifth peripheral wall 115, a sixth peripheral wall 116, a seventh peripheral wall 117, an eighth peripheral wall 118, a first end wall 121, a second end wall 122, and a third end wall 123. The first peripheral wall 111, the second peripheral wall 112, the third peripheral wall 113, the fourth peripheral wall 114, the fifth peripheral wall 115, the sixth peripheral wall 116, the seventh peripheral wall 117, and the eighth peripheral wall 118 are extended upward from the fixing portion 10, that is, the first peripheral wall 111, the second peripheral wall 112, the third peripheral wall 113, the fourth peripheral wall 114, the fifth peripheral wall 115, the sixth peripheral wall 116, the seventh peripheral wall 117, and the eighth peripheral wall 118 are extended along the longitudinal axis 141. The first end wall 121, the second end wall 122, and the third end wall 123 are located at one end of the first peripheral wall 111, and the fixing portion 10 is located at the other opposite end of the first peripheral wall 111, that is, the first end wall 121, the second end wall 122, and the third end wall 123 are located at the upper end of the first peripheral wall 111, and the fixing portion 10 is located at the lower end of the first peripheral wall 111.

[0051] The heating portion 11 is provided with an air flow channel 13, and an air flow inlet 130 of the air flow channel 13 is located on the fixed portion 10. In the present embodiment, the air flow inlet 130 is located at the lower end of the fixed portion. It is understandable that in some other embodiments, the air flow inlet 130 may also be provided on the side wall of the fixed portion. The first peripheral wall 111, the second peripheral wall 112, the third peripheral wall 113, the fourth peripheral wall 114, the fifth peripheral wall 115, the sixth peripheral wall 116, the seventh peripheral wall 117, and the eighth peripheral wall 118 are located around the air flow channel 13, and the first end wall 121, the second end wall 122, and the third end wall 123 are used to block the air flow channel 13, so that the heating body 1 is formed into a structure with an open lower end and a closed upper end.

[0052] The first peripheral wall 111, the fourth peripheral wall 114, and the fifth peripheral wall 115 are located on the same side of the second center plane 145145, the second peripheral wall 112, the third peripheral wall 113, and the seventh peripheral wall 117 are located on the other side of the second center plane 145145, the first peripheral wall 111 and the second peripheral wall 112 are symmetrical about the second center plane 145145, the third peripheral wall 113 and the fourth peripheral wall 114 are symmetrical about the second center plane 145145, the fifth peripheral wall 115 and the seventh peripheral wall 117 are symmetrical about the second center plane 145145, and the second end wall 122 and the third end wall 123 are symmetrical about the second center plane 145145. The first peripheral wall 111 and the fourth peripheral wall 114 are symmetrical about the first center plane 144 , the second peripheral wall 112 and the third peripheral wall 113 are symmetrical about the first center plane 144 , and the sixth peripheral wall 116 and the eighth peripheral wall 118 are symmetrical about the first center plane 144 .

[0053] The fifth peripheral wall 115 is used to connect the first peripheral wall 111 and the fourth peripheral wall 114, and the fifth peripheral wall 115 and the second center plane 145145 are parallel to each other. The sixth peripheral wall 116 and the eighth peripheral wall 118 are arranged in parallel and opposite to each other, and the second center plane 145145 passes through the sixth peripheral wall 116 and the eighth peripheral wall 118. The second center plane 145145 and the sixth peripheral wall 116 and the eighth peripheral wall 118 are perpendicular to each other. The sixth peripheral wall 116 is used to connect the first peripheral wall 111 and the second peripheral wall 112, and the eighth peripheral wall 118 is used to connect the third peripheral wall 113 and the fourth peripheral wall 114. The second peripheral wall 112, the third peripheral wall 113, and the seventh peripheral wall 117 are located on the other side of the second center plane 145145, and the widths of the fifth peripheral wall 115, the sixth peripheral wall 116, the seventh peripheral wall 117, and the eighth peripheral wall 118 are equal to each other.

[0054] The distance between the outer side of the first peripheral wall 111 and the outer side of the fourth peripheral wall 114 gradually decreases from the direction close to the second center plane 145145 to the direction away from the second center plane 145145, and the distance between the outer side of the second peripheral wall 112 and the outer side of the third peripheral wall 113 gradually decreases from the direction close to the second center plane 145145 to the direction away from the second center plane 145145. That is, the width of the heating portion 11 in the direction of the second horizontal axis 143 gradually narrows from the center to both sides, so that the heating portion 11 presents a "thick in the middle and narrow on both sides" structure in the front-to-back direction, so that the heating portion 11 is easy to insert into the cigarette from both sides.

[0055] A plurality of vent holes 15 are provided on the first peripheral wall 111, the second peripheral wall 112, the third peripheral wall 113, and the fourth peripheral wall 114. The plurality of vent holes 15 are symmetrically arranged about the first center plane 144, that is, the vent holes 15 arranged on the first peripheral wall 111 and the vent holes 15 arranged on the fourth peripheral wall 114 are symmetrically arranged about the first center plane 144, and the vent holes 15 arranged on the second peripheral wall 112 and the vent holes 15 arranged on the third peripheral wall 113 are symmetrically arranged about the first center plane 144. In the direction of the longitudinal axis 141 of the heat generating portion, the plurality of vent holes 15 are equally spaced on the first peripheral wall 111, the second peripheral wall 112, the third peripheral wall 113, and the fourth peripheral wall 114, that is, in the direction of the longitudinal axis 141 of the heat generating portion 11, the vent holes 15 are equally spaced on the heat generating portion 11.

[0056] The ventilation holes 15 are connected with the air flow channel 13, and the outside air enters the heating part 11 through the opening on the fixing part 10, leaves the heating part 11 through the multiple ventilation holes 15, and takes away part of the heat on the heating part 11, thereby dissipating to the outer part of the cigarette. On the one hand, the outside air can take away part of the heat in the heating part 11, which has a cooling effect on the heating part 11, thereby preventing the heating part 11 from burning the central part of the cigarette due to excessive temperature, thereby ensuring the user's taste; on the other hand, the air carrying a certain amount of heat diffuses to the outer part of the cigarette, thereby forming a preheating effect on the outer part of the cigarette, so that the cigarette is heated evenly, thereby improving the smoke output rate of the cigarette.

[0057] The first end wall 121, the first center plane 144, and the second center plane 145145 are perpendicular to each other and intersect each other, and the first end wall 121 is used to connect the sixth peripheral wall 116 and the eighth peripheral wall 118, the second peripheral wall 112 is used to cover the first peripheral wall 111, the fourth peripheral wall 114 and the fifth peripheral wall 115, and the height of the second peripheral wall 112 gradually decreases from approaching the second center plane 145145 to away from the second center plane 145145; the third peripheral wall 113 is used to cover the second peripheral wall 112, the third peripheral wall 113 and the seventh peripheral wall 117, and the height of the second peripheral wall 112 gradually decreases from approaching the second center plane 145145 to away from the second center plane 145145. That is, the first circumferential wall 111 is horizontally arranged, and the width of the first circumferential wall 111 is equal to the width of the fifth circumferential wall 115, so that the upper end of the heating part 11 presents a "high in the middle and low on both sides" structure in the direction of the second horizontal axis 143, so that the center of the heating part 11 protrudes, which is easy to insert into the cigarette from the center.

[0058] In this embodiment, an air flow channel 13 is provided in the heating body 1, and a vent hole 15 connected to the air flow channel 13 is provided on the heating part 11. As the user draws air, outside air enters the air flow channel 13 through the air flow inlet 130, and then flows out of the heating body 1 from the vent hole 15, carrying smoke with a certain temperature to diffuse to the cigarette parts around the heating body 1, thereby preheating the cigarette being heated and heating the cigarette evenly. When the outside air with a lower temperature enters the air flow channel 13 inside the heating part 11, it will take away a certain amount of heat from the center of the heating part 11, reduce the temperature of the center of the heating part 11, avoid the center of the cigarette from being burnt, ensure the taste of the user's suction, and be beneficial to the maximum production of smokeable smoke from the cigarette.

[0059] In this embodiment, the outer contour of the heating part 11 is an octagonal prism structure. It can be understood that in some other embodiments, the outer contour of the heating part 11 can also be a triangular prism, a quadrangular prism, a pentagonal prism, a hexagonal prism, an eniconarium or a cylinder. It is only necessary to provide an air flow channel 13 in the center of the heating part 11 and provide a plurality of ventilation holes 15 connected to the air flow channel 13 on the side wall of the heating part 11 to achieve the purpose of the present invention.

[0060] like Figure 5 As shown, it is an alternative to the heating body 1 provided by the present invention. The heating portion 11 of the heating body 1 has a first transverse axis 142 that is perpendicular to and intersects the longitudinal axis 141. In the direction of the first transverse axis 142, the width of the heating portion 11 gradually decreases from the connection with the fixed portion 10 to the direction away from the fixed portion 10, that is, in the left and right directions, the width of the heating portion 11 gradually decreases from the connection with the fixed portion 10 to the direction away from the fixed portion 10. The heating portion 11 of the heating body 1 has a second transverse axis 143 that is perpendicular to and intersects the longitudinal axis 141. In the direction of the second transverse axis 143, the width of the heating portion 11 gradually decreases from the connection with the fixed portion 10 to the direction away from the fixed portion 10, that is, in the front and rear directions, the width of the heating portion 11 gradually decreases from the connection with the fixed portion 10 to the direction away from the fixed portion 10.

[0061] Embodiment 2

[0062] like Figure 6 As shown, a heating body 2 is provided in the second embodiment of the present invention, and the heating body 2 includes a fixing portion 20 and a heating portion 21. The fixing portion 20 is a flat plate structure, and the fixing portion 20 is provided with fixing holes 201 penetrating the opposite sides of the fixing portion 20.

[0063] The heating part 21 includes a main body 22 and two wing petals 25. The main body 22 extends upward from the fixed part 20. The main body 22 is flat. The two wing petals 25 are respectively located on opposite sides of the main body 22. The heating part 21 and the fixed part 20 are provided with air flow channels 23. The air flow channel 23 connects the inner cavities of the main body 22 and the wing petals 25.

[0064] The main body 22 is provided with a plurality of first ventilation holes 221 penetrating through the opposite sides of the main body 22. The plurality of first ventilation holes 221 are arranged into two first ventilation hole groups 24 along the length direction of the heating portion 21. The first ventilation holes 221 in each of the first ventilation hole groups 24 are arranged on the main body 22 at equal intervals. The connecting lines of the centers of the plurality of first ventilation holes 221 in each of the first ventilation hole groups 24 are parallel to each other. The wing 25 is located between the two first ventilation hole groups 24.

[0065] Each of the wing petals 25 is provided with a plurality of second vent holes 251 penetrating through the opposite sides of the wing petals 25. The plurality of second vent holes 251 are arranged into two second vent hole groups 26 along the length direction of the heating portion 21. The second vent holes 251 in each second vent hole group 26 are arranged on the wing petals 25 at equal intervals, and the connecting lines of the centers of the plurality of second vent holes 251 in each second vent hole group 26 are parallel to each other. In the longitudinal direction of the heating portion 21, the first vent holes 221 and the second vent holes 251 are arranged alternately, that is, the first vent holes 221 and the second vent holes 251 are not at the same height, so that the outside air leaves the heating portion 21 from the first vent holes 221 and the second vent holes 251 respectively, so that the outside air takes away heat from different parts of the heating portion 21, so that the temperature of different parts of the heating portion 21 is kept as consistent as possible, ensuring that the baking temperature of the cigarettes at different parts of the heating portion 21 is as consistent as possible, and ensuring the consistency of the user's taste.

[0066] Embodiment 3

[0067] like Figure 7 and Figure 8 As shown, the heater 100 provided in the third embodiment of the present invention comprises a chimney 3, a heating body 1 (2), a bracket 4, a coil 5, a base 6 and a temperature sensor 7, wherein the heating body 1 is the same as that in the first embodiment and is not described in detail here. The heating body 1 is made of a metal material with high magnetic permeability, and the heating body can be made of materials such as iron powder core, iron nickel 50, iron silicon aluminum, iron nickel molybdenum, etc.

[0068] It can be understood that the heating body 1 in the heater 100 can also be the heating body 2 in the second embodiment. In this embodiment, only the heating body 1 in the first embodiment is described.

[0069] like Figures 7 to 9As shown, the chimney 3 includes a bottom wall 30 and a tube wall 31. The tube wall 31 extends upward from the bottom wall 30. The chimney 3 is used to accommodate cigarettes 200. A notch 311 is provided on the tube wall 31. A through hole 301 penetrating the upper and lower surfaces of the bottom wall 30 is provided in the middle of the bottom wall 30. The through hole 301 is suitable for the heating part of the heating body to pass through, thereby inserting the cigarette 200.

[0070] The bracket 4 is a hollow cylindrical structure. The outer wall of the bracket 4 is provided with a first limiting portion 41 and a second limiting portion 42 at intervals. The bracket 4 is sleeved outside the chimney 3 .

[0071] like Figure 7 , Figure 8 and Fig.10 As shown, the coil 5 is wound outside the bracket 4 and is located between the first limiting portion 41 and the second limiting portion 42. The coil 5 is used to generate a changing magnetic field to generate eddy currents in the heating body 1. The coil 5 generates a high-frequency current under a high-frequency voltage condition, and the coil 5 itself generates a high-frequency magnetic field. The heating body 1 generates eddy currents in the high-frequency magnetic field. The eddy currents cause the magnetic molecules in the heating body 1 to move irregularly at high speed, and the molecules collide and rub against each other to generate heat energy, thereby heating the cigarette 200.

[0072] like Figure 7 , Figure 8 and Fig.11 As shown, the base 6 is used to support and fix the heating body 1. The base 6 includes a first base 61 and a second base 62. The first base 61 is provided with a holding rod 611 protruding toward the second base 62. The second base 62 is provided with a holding hole 621 recessed toward the adaptation. The holding rod 611 is inserted into the holding hole 621, thereby achieving the clamping and fixing of the first base 61 and the second base 62. A receiving groove 63 is provided between the first base 61 and the second base 62. The receiving groove 63 accommodates the fixing portion 10. The holding rod 611 passes through the fixing hole 101 on the fixing portion 10, thereby achieving the fixing of the heating body 1 on the base 6.

[0073] The temperature sensor 7 is disposed on the fixed portion 10 of the heating body 1 . The temperature sensor 7 is used to detect the temperature on the heating body 1 . The temperature sensor 7 can communicate with an external controller (not shown, the same below) so that the controller controls the temperature of the heater 100 .

[0074] It should be noted that the preferred embodiments of the present invention are given in the specification and drawings of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described in this specification. These embodiments are not used as additional limitations on the content of the present invention. The purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive. In addition, the above-mentioned technical features continue to be combined with each other to form various embodiments not listed above, which are all regarded as the scope of the present invention; further, for ordinary technicians in this field, they can be improved or transformed according to the above description, and all these improvements and transformations should belong to the protection scope of the claims attached to the present invention.

Claims

1. A heating body for heating cigarettes in low-temperature baking smoking utensils, characterized in that: include: The heating part has a longitudinal axis and extends along the longitudinal axis, and the heating part is used to be inserted into the cigarette along the longitudinal axis; A fixing portion is located at one end of the heating portion and is fixedly connected to the heating portion, and an airflow inlet is provided on the fixing portion; wherein an airflow channel extending along the longitudinal axis is provided inside the heating portion, and the airflow inlet is communicated with the airflow channel; an air vent is provided on the heating portion for connecting the airflow channel with the outside of the heating portion, so that the airflow in the airflow channel enters the interior of the cigarette; the heating portion comprises a main body and two wing petals, and the two wing petals are respectively located on opposite sides of the main body; the air vents comprise a plurality of first air vents penetrating the opposite sides of the main body, and / or comprise a plurality of second air vents penetrating the opposite sides of the wing petals.

2. The heating element according to claim 1, characterized in that In the longitudinal direction of the heat-generating portion, the plurality of first ventilation holes are arranged on the main body at equal intervals; and / or in the longitudinal direction of the heat-generating portion, the plurality of second ventilation holes are arranged on the wing petals at equal intervals.

3. The heating element according to claim 1, characterized in that: The multiple first ventilation holes constitute a first ventilation hole group, and the multiple second ventilation holes constitute a second ventilation hole group. The connecting line of the centers of the multiple first ventilation holes, the connecting line of the centers of the multiple second ventilation holes and the longitudinal axis are parallel to each other. In the direction of the longitudinal axis, each of the first ventilation holes and each of the second ventilation holes are staggered.

4. The heating element according to claim 1, characterized in that: The plurality of first ventilation holes constitute a first ventilation hole group, two first ventilation hole groups are provided, connecting lines of centers of the plurality of first ventilation holes in each first ventilation hole group are parallel to each other, and the wing petal is located between the two first ventilation hole groups.

5. A heating body for heating cigarettes in a low-temperature baking smoking device, characterized in that: include: The heating part has a longitudinal axis and extends along the longitudinal axis, and the heating part is used to be inserted into the cigarette along the longitudinal axis; A fixing portion is located at one end of the heating portion and is fixedly connected to the heating portion, and an airflow inlet is provided on the fixing portion; wherein an airflow channel extending along the longitudinal axis is provided inside the heating portion, and the airflow inlet is communicated with the airflow channel; an air vent for connecting the airflow channel with the outside of the heating portion is provided on the heating portion, so that the airflow in the airflow channel enters the interior of the cigarette; wherein the heating portion comprises a first circumferential wall, a second circumferential wall and a third circumferential wall located around the airflow channel, and a plurality of air vents communicated with the airflow channel are respectively provided on the first circumferential wall, the second circumferential wall and the third circumferential wall.

6. The heating element according to claim 5, characterized in that There are a plurality of ventilation holes, and in the longitudinal direction of the heat generating portion, the ventilation holes are arranged on the heat generating portion at equal intervals.

7. The heating element according to claim 5, characterized in that The heating portion has a first transverse axis that is perpendicular to and intersects the longitudinal axis. The first transverse axis and the longitudinal axis define a first central plane. The ventilation holes have a plurality of holes, and the ventilation holes are symmetrical about the first central plane.

8. The heating element according to claim 7, characterized in that The heating portion further has a second transverse axis which is perpendicular to and intersects the first transverse axis and the longitudinal axis. In the direction of the second transverse axis, the width of the heating portion gradually decreases from the junction with the fixing portion toward a direction away from the fixing portion.

9. The heating element according to claim 7, characterized in that: The heating part also has a second horizontal axis that is perpendicular to and intersects the first horizontal axis and the longitudinal axis, the second horizontal axis and the longitudinal axis define a second center plane, the heating part also includes a fourth peripheral wall located around the air flow channel, the first peripheral wall and the fourth peripheral wall are located on the same side of the second center plane, the second peripheral wall and the third peripheral wall are respectively located on the other side of the second center plane, and the fourth peripheral wall is provided with a plurality of ventilation holes connected to the air flow channel.

10. The heating element according to claim 9, characterized in that The distance between the outer side of the first circumferential wall and the outer side of the fourth circumferential wall gradually decreases from approaching the second center plane to away from the second center plane, and the distance between the outer side of the second circumferential wall and the outer side of the third circumferential wall gradually decreases from approaching the second center plane to away from the second center plane.

11. The heating element according to claim 10, characterized in that The heating portion further includes a fifth peripheral wall, a sixth peripheral wall, a seventh peripheral wall and an eighth peripheral wall, wherein the fifth peripheral wall is used to connect the first peripheral wall and the fourth peripheral wall, the sixth peripheral wall is used to connect the first peripheral wall and the second peripheral wall, the seventh peripheral wall is used to connect the second peripheral wall and the third peripheral wall, and the eighth peripheral wall is used to connect the third peripheral wall and the fourth peripheral wall. The heating portion further includes a first end wall, a second end wall and a third end wall, wherein the first end wall, the second end wall and the third end wall are located at one end of the first peripheral wall, and the fixing portion is located at the other end opposite to the first peripheral wall. The first end wall and the second center plane are perpendicular and intersecting, the first end wall is used to connect the sixth peripheral wall and the eighth peripheral wall, the second end wall is used to cover the first peripheral wall, the fourth peripheral wall and the fifth peripheral wall, and the height of the second end wall gradually decreases from close to the second center plane to away from the second center plane; the third end wall is used to cover the second peripheral wall, the third peripheral wall and the seventh peripheral wall, and the height of the third end wall gradually decreases from close to the second center plane to away from the second center plane.

12. A heater, characterized in that: It comprises a heating body and a support, wherein the support is provided with a receiving cavity for receiving cigarettes, the heating body is exposed in the receiving cavity, and the heating body is suitable for being inserted into the inside of the cigarette, wherein the heating body is the heating body according to any one of claims 1-11.

13. The heater according to claim 12, characterized in that The heater further comprises a coil. A first limiting portion and a second limiting portion are provided at intervals on the outer side of the bracket. The coil is located between the first limiting portion and the second limiting portion.

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