CN113768205A

CN113768205A - Tobacco heating smoking set

Info

Publication number: CN113768205A
Application number: CN202110942644.2A
Authority: CN
Inventors: 刘团芳
Original assignee: Shenzhen Eigate Technology Co Ltd
Current assignee: Shenzhen Eigate Technology Co Ltd
Priority date: 2021-08-17
Filing date: 2021-08-17
Publication date: 2021-12-10

Abstract

The invention discloses a flue-cured tobacco heating smoking set which comprises a smoking set main body and a high-frequency control assembly, wherein an opening for placing flue-cured tobacco is formed in one end of the smoking set main body, a heating cavity is formed in the opening, a heating element for heating the flue-cured tobacco is arranged in the heating cavity, and the high-frequency control assembly is arranged outside the heating cavity and controls the heating element to generate heat after being electrified. The flue-cured tobacco heating smoking set shortens the heating preheating time by using the high-frequency electromagnetic induction heating technology, and has higher heating efficiency and good heating stability.

Description

Tobacco heating smoking set

Technical Field

The invention relates to the technical field of flue-cured tobacco electronic cigarettes, in particular to a flue-cured tobacco heating smoking set.

Background

Currently, an electrically heated flue-cured tobacco heating smoking set is represented by IQOS products of philips morris, which provides heat through a resistive heating element, transfers heat through an aluminum heat pipe, and heats tobacco materials to release smoke. However, the existing resistance-type heating appliances have the technical defects of long heating preheating time, low heating efficiency, poor stability of heating effect and the like. Heating element

Disclosure of Invention

The invention aims to solve the technical problem of providing a heating element of a flue-cured tobacco heating smoking set so as to solve the problems of long heating preheating time, low heating efficiency and poor heating effect stability.

The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a flue-cured tobacco heating smoking set, includes smoking set main part and high frequency control subassembly, smoking set main part one end tip is formed with the first opening that supplies to be put into by the flue-cured tobacco, form the heating chamber within the first opening, be equipped with the heating within the heating chamber by the heating element of flue-cured tobacco, high frequency control subassembly sets up control after the circular telegram outside the heating chamber heating element generates heat. It should be noted that, through set up the high frequency control subassembly outside the heating chamber, thereby the high frequency control subassembly makes heating element produce the magnetic induction effect after the circular telegram and heats to producing smog to the flue-cured tobacco in the heating chamber, has shortened the heating preheating time, and the efficiency of generating heat is higher.

It should be noted that the term "cured tobacco" refers to a product, such as a cigarette, cartridge or rod, containing a tobacco material that can be heated to produce an aerosol, such as smoke or fog, or simply to a tobacco material that is directly cured, preferably as a disposable article.

In the flue-cured tobacco heating smoking set, a hot air flow cavity is formed in the heating element, at least one first through hole is formed in the cavity wall of the hot air flow cavity, and the first through hole penetrates from the hot air flow cavity to the outside of the heating element. It should be noted that, the heating element increases the heating area of the heating element by designing the hot air flow cavity under the condition of hardly increasing the volume of the heating element, so that the heat is increased, the hot air flow cavity can be communicated with air flow, and the hot air flow in the hot air flow cavity can be conducted to each position of the tobacco material by utilizing the first through hole, so that the tobacco material is heated more uniformly, and the smoke taste is better. Because the heating element increases the heating area, if a resistance heating mode, namely an electrifying heating mode is adopted, the inner surface and the outer surface of the heating element need to be electrified, the condition of short circuit or electrifying disconnection is easy to occur, the use is influenced, the requirement on the processing technology is high, and the cost is high. The electromagnetic induction heating is matched with the heating element, so that the phenomenon of short circuit or open circuit can be avoided.

In the flue-cured tobacco heating smoking set, the high-frequency control assembly comprises a magnetic induction coil and a power supply control part, the magnetic induction coil is used for generating an induction magnetic field to enable the heating element to generate heat, the power supply control part is electrically connected with the magnetic induction coil and is used for providing alternating current for the magnetic induction coil, an annular space is formed in the magnetic induction coil, and the heating cavity is located in the annular space. It should be noted that after the alternating current passes through the magnetic induction coil, an induced magnetic field is generated in an annular space of the magnetic induction coil, and the heating element made of the conductive metal generates compact electric charges on the surface of the heating element in the induced magnetic field to promote collision among metal atoms, thereby generating heat.

In the flue-cured tobacco heating smoking set, the power supply control part comprises a battery core and a high-frequency control board, the battery core is electrically connected with the high-frequency control board and used for supplying power to the high-frequency control board, and the high-frequency control board is respectively electrically connected with the magnetic induction coil and the temperature sensor and used for supplying alternating current to the magnetic induction coil and receiving temperature change information of the heating element induced by the temperature sensor. It should be noted that the high-frequency control board is provided with an LC oscillator circuit, and the LC oscillator circuit can make the high-frequency control board output an alternating current.

In the flue-cured tobacco heating smoking set, the smoking set main body comprises a shell, a cavity space is formed in one end of the shell, a support is installed in the shell, an inwards concave space is formed in the support, the high-frequency control assembly is installed in the inwards concave space formed in the support, and a magnetic induction coil of the high-frequency control assembly is located in the cavity space.

In the flue-cured tobacco heating smoking set, the smoking set main body further comprises a shell cover, the shell cover is installed in a cavity space formed in one end of the shell, a first groove is formed in one end of the shell cover, a second opening is formed in the bottom wall of the first groove, the shell cover protrudes inwards from the second opening to form a gas guide tube, and the gas guide tube extends into an annular space formed by the magnetic induction coil.

In the flue-cured tobacco heating smoking set, the smoking set main body further comprises a fixing part for storing cigarettes or tobacco materials, a second groove is formed in one end of the fixing part, the first opening is formed in the bottom wall of the second groove, a sliding part capable of sliding along the inner peripheral wall of the second groove is arranged in the second groove, one end, away from the second groove, of the fixing part is constricted and axially extends to form a convex extending body matched with the inner peripheral wall of the first groove, one end of the convex extending body is connected with a tobacco storage pipe corresponding to the first opening, and a heating cavity is formed in the tobacco storage pipe in a hollow mode. The second groove is internally provided with a sliding part which can slide along the inner peripheral wall of the second groove, and the sliding part slides to one end of the second groove and can be filled with cigarettes or tobacco materials from the first opening, and slides to the other end of the second groove and can cover the first opening.

In the flue-cured tobacco heating smoking set, the fixing piece is detachably arranged in a cavity space formed in one end part of the shell, the convex extending body is positioned in the first groove, the tobacco storage pipe is inserted into the air guide pipe from the second opening, and an air guide channel is formed in a gap between the outer peripheral wall of the tobacco storage pipe and the inner peripheral wall of the air guide pipe. It should be noted that, during smoking, the air flow enters from the gap between the outer peripheral wall of the convex extension body and the inner peripheral wall of the first groove, then enters into the hot air flow chamber from the first through hole through the air guide channel to drive the hot air generated by the heating element to be emitted to each position of the cigarette or the tobacco material and the heating cavity, and after the cigarette or the tobacco material is heated by the heating element and the hot air to generate smoke, the smoke can be discharged through the first opening along with the air flow or sucked out from the cigarette filter tip outside the first opening.

In the flue-cured tobacco heating smoking set, a sealing piece for sealing the air guide channel is arranged in one end part of the air guide tube, a third groove is formed in the sealing piece, a second through hole is formed in the third groove, one end part of the heating element is inserted into the third groove and fixed, a hot air flow cavity formed in the heating element corresponds to the second through hole, and a conducting wire of the temperature sensor penetrates through the second through hole and is electrically connected with the high-frequency control board.

In the flue-cured tobacco heating smoking set of the invention, the flue-cured tobacco heating smoking set further comprises a temperature sensor, the hot air flow chamber is provided with a first chamber, the temperature sensor is arranged in the first chamber, the heating element is in an elongated shape, the first chamber extends along the length direction of the heating element, and the first chamber is positioned in the middle of the heating element. Wherein, be equipped with temperature sensor in the first cavity as a part in the hot gas flow cavity for control heating element heats the tobacco material in certain temperature range. And the first chamber extends along the length direction of the heating element and is positioned in the middle position, so that the temperature control is more accurate and the effect is better.

It should be noted that a great number of technical features are described in the specification of the present application, and are distributed in various technical solutions, so that the specification is excessively long if all possible combinations of the technical features (i.e., technical solutions) in the present application are listed. In order to avoid this problem, the respective technical features disclosed in the above summary of the invention of the present application, the respective technical features disclosed in the following embodiments and examples, and the respective technical features disclosed in the drawings may be freely combined with each other to constitute various new technical solutions (which are considered to have been described in the present specification) unless such a combination of the technical features is technically infeasible. For example, in one example, the feature a + B + C is disclosed, in another example, the feature a + B + D + E is disclosed, and the features C and D are equivalent technical means for the same purpose, and technically only one feature is used, but not simultaneously employed, and the feature E can be technically combined with the feature C, so that the solution of a + B + C + D should not be considered as being described because the technology is not feasible, and the solution of a + B + C + E should be considered as being described.

The flue-cured tobacco heating smoking set has the following beneficial effects: the flue-cured tobacco heating smoking set shortens the heating preheating time by using the high-frequency electromagnetic induction heating technology, and has higher heating efficiency and good heating stability.

Drawings

The present invention will be described in detail below with reference to the accompanying drawings so that the above advantages of the present invention will be more apparent. Wherein the content of the first and second substances,

FIG. 1 is an exploded view of a flue-cured tobacco heating smoking set of the present invention;

FIG. 2 is a schematic cross-sectional view of a flue-cured tobacco heating smoking set of the present invention;

FIG. 3 is a schematic view of the housing cover of the flue-cured tobacco heating smoking set of the present invention;

FIG. 4 is a schematic view of the air flow direction of the flue-cured tobacco heating smoking set of the present invention;

FIG. 5 is a schematic structural view of a first embodiment of a heating element of the flue-cured tobacco heating smoking article of the present invention;

FIG. 6 is a schematic structural view of a second embodiment of a heating element of the flue-cured tobacco heating smoking article of the present invention;

FIG. 7 is a schematic structural view of a third embodiment of a heating element of the flue-cured tobacco heating smoking article of the present invention;

figure 8 is a schematic structural view of a fourth embodiment of the heating element of the flue-cured tobacco heating smoking article of the present invention.

Detailed Description

The following detailed description of the embodiments of the present invention will be provided with reference to the drawings and examples, so that how to apply the technical means to solve the technical problems and achieve the technical effects can be fully understood and implemented. It should be noted that, as long as there is no conflict, the embodiments and the features of the embodiments of the present invention may be combined with each other, and the technical solutions formed are within the scope of the present invention.

As shown in fig. 1-8, the present invention provides a tobacco heating smoking set, which comprises a smoking set main body and a high frequency control assembly, wherein a first opening 103 for placing cigarettes or tobacco materials is formed at one end of the smoking set main body, a heating cavity 104 is formed in the first opening 103, a heating element 3 for heating the cigarettes or tobacco materials is arranged in the heating cavity 104, and the high frequency control assembly is arranged outside the heating cavity 104 and controls the heating element 3 to generate heat after being electrified. It should be noted that, by arranging the high-frequency control assembly outside the heating chamber 104, after the power is turned on, the heating element 3 generates a magnetic induction effect to heat the cigarettes or tobacco materials in the heating chamber 104 until smoke is generated.

A hot airflow cavity 302 is formed in the heating element 3, the hot airflow cavity 302 has a first cavity 3021, a temperature sensor 5 is arranged in the first cavity 3021, at least one first through hole 301 communicated with the hot airflow cavity 302 is formed in the outer wall of the heating element 3, and the heating element 3 is made of metal with good electric conduction. It should be noted that, the heating element 3 can not only pass through the air flow by designing the hot air flow chamber 302 and the first through hole 301, but also conduct the heat generated inside the heating element to each position of the tobacco material by using the through hole, so that the tobacco material is heated more uniformly, and the smoke taste is better. Wherein, temperature sensor 5 can the induction heating temperature of heating element 3, and then control heating tobacco material at certain temperature range.

Wherein the heating element 3 is made of a conductive metal including, but not limited to, copper, silver, gold, tungsten, aluminum, nickel, and the like. Alternatively, the heating element 3 is made of a hard, non-conductive material, including but not limited to stainless steel, iron, metallic titanium, metallic chromium, quartz, and the like. The outer wall surface of the heating element 3 made of hard non-conductive material is coated with a conductive layer (not shown). In other embodiments, the conductive layer further covers the inner wall of the hot gas flow chamber 302. Further, the conductive layer further covers the hole wall of the first via hole 301. The shape of the conductive layer includes, but is not limited to, planar, mesh, trace, and the like. The conductive layer is formed of a conductive metal. Conductive metals include, but are not limited to, copper, silver, gold, tungsten, aluminum, nickel, and the like.

The heating element 3 is further covered with a passivation layer (not shown). When the heating element 3 is made of a conductive metal, the passivation layer directly covers the heating element 3 and/or the inner wall of the hot gas flow chamber 302 and/or the wall of the first through hole 301. When the heating element 3 is made of a hard, non-conductive material, provided with a conductive layer, the passivation layer is arranged over the conductive layer. It should be noted that the passivation layer may completely cover the heating element 3 and/or the inner wall of the hot gas flow chamber 302 and/or the wall of the first through hole 301, and at the same time cover the conductive layer. The passivation layer can also be arranged outside the conductive layer. Wherein, the passivation layer is formed by at least one of inert metal, oxidation-resistant metal, glass, glaze, ceramic, mica, quartz and agate.

A preset distance is arranged between the top end of the first cavity 3021 and the top end of the heating element 3, so that the situation that the hot air flow is too close to the cigarette holder part of the flue-cured tobacco to cause the cigarette holder part to be overheated is avoided. Wherein the preset distance is 2-6 mm.

In other examples, the hot gas flow chamber 302 further has a second chamber 3022, the second chamber 3022 being in communication with the first chamber 3021. The shape of the second chamber 3022 is not limited and is within the scope of the present invention. The second chamber 3022 may be directly connected to and in communication with the first chamber 3021, or the second chamber 3022 may be in communication with the first chamber 3021 via an orifice or channel, etc. When the hot gas flow chamber 302 further has the second chamber 3022, in some examples, the first through hole 301 is not designed on the chamber wall of the first chamber 3021, but only the first through hole 301 is formed on the chamber wall of the second chamber 3022, and the first through hole 301 penetrates from the second chamber 3022 to the outside of the heating element 3; in other embodiments, the first through-hole 301 is formed in a chamber wall of the first chamber 3021 and a chamber wall of the second chamber 3022. The heating area of the heating element is further increased by designing the second chamber 3022, so that the air flow of the hot air flow is increased, and the heating area is dispersed, so that the heating is more uniform.

It should be noted that the first through hole 301 may be opened on a chamber wall of the first chamber 3021, and the first through hole 301 penetrates from the first chamber 3021 to the outside of the heating element 3; or on a chamber wall of the second chamber 3022, the first through hole 301 penetrates from the second chamber 3022 to the outside of the heating element 3; or the first through hole 301 opens on both the chamber wall of the first chamber 3021 and the chamber wall of the second chamber 3022.

Wherein, the first through hole 301 is located at a position not higher than the top end of the first chamber 3021. It should be noted that, no matter whether the first through hole 301 is opened on the chamber wall of the first chamber 3021 or the chamber wall of the second chamber 3022, the position of the first through hole 301 is not higher than the top end of the first chamber 3021, so that the temperature sensor located in the first chamber 3021 is close to the first through hole 301, and the heating temperature can be detected more accurately; meanwhile, the hot air flow flowing out of the first through hole 301 is spaced from the top end of the heating element 3 as far as possible, so that the situation that the hot air flow is too close to the cigarette holder of the flue-cured tobacco to cause the cigarette holder to be overheated is avoided. The high-frequency control assembly comprises a magnetic induction coil 7 and a power supply control part, wherein the magnetic induction coil 7 is used for generating an induction magnetic field to enable the heating element 3 to generate heat, the power supply control part is electrically connected with the magnetic induction coil 7 and is used for providing alternating current for the magnetic induction coil 7, an annular space 701 is formed in the magnetic induction coil 7, and the heating cavity 104 is located in the annular space 701. It should be noted that, after the alternating current passes through the magnetic induction coil 7, an induced magnetic field is generated in the annular space 701 of the magnetic induction coil 7, and the heating element 3 made of the conductive metal generates compact electric charges on the surface of the heating element 3 in the induced magnetic field to promote collision between metal atoms, thereby generating heat.

The heating element 3 comprises an elongate body 307, a first wall 309 and a second wall, the first wall 309 and the second wall being disposed opposite one another and enclosing a first chamber 3021, the first wall 309 and/or the second wall being disposed on the elongate body 307.

In other examples, the elongated blade 307 has a notch 305 along a length direction, the first wall 309 and the second wall enclose the notch 305 to form a first chamber 3021, and at least one of the first wall 309 and the second wall is raised relative to the elongated blade 307.

In other examples, the heating element 3 comprises an annular wall 308, the annular wall 308 encloses an annular space, the annular wall 308 is provided with a first surrounding wall 309 and a second surrounding wall which are oppositely arranged, the first surrounding wall 309 and the second surrounding wall enclose the first chamber 3021, and the area in the annular space outside the first chamber 3021 is used as a second chamber 3022.

The power supply control part comprises a battery cell 9 and a high-frequency control board 8, the battery cell 9 is electrically connected with the high-frequency control board 8 and used for supplying power to the high-frequency control board 8, and the high-frequency control board 8 is respectively electrically connected with the magnetic induction coil 7 and the temperature sensor 5 and used for providing alternating current for the magnetic induction coil 7 and receiving temperature change information of the induction heating element 3 of the temperature sensor 5. It should be noted that the high-frequency control board 8 is provided with an LC oscillator circuit, and the LC oscillator circuit can make the high-frequency control board 8 output an alternating current.

The smoking set main body comprises a shell 14, a cavity space 1401 is formed in one end of the shell 14, a support 6 is installed in the shell 14, an inner concave space 601 is formed in the support 6, the high-frequency control assembly is installed in the inner concave space 601 formed in the support 6, and the magnetic induction coil 7 of the high-frequency control assembly is located in the cavity space 1401.

The smoking set main part further comprises a shell cover 2, the shell cover 2 is installed in a cavity space 1401 formed in one end of the shell 14, a first groove 201 is formed in one end of the shell cover 2, a second opening 202 is formed in the bottom wall of the first groove 201, the shell cover 2 protrudes inwards from the second opening 202 to form an air duct 203, and the air duct 203 extends into an annular space 701 formed by the magnetic induction coil 7.

The smoking set main body further comprises a fixing part 1 for storing cigarettes or tobacco materials, a second groove 102 is formed in one end of the fixing part 1, a first opening 103 is formed in the bottom wall of the second groove 102, a sliding part 101 capable of sliding along the inner peripheral wall of the second groove 102 is arranged in the second groove 102, the fixing part 1 is constricted at one end far away from the second groove 102 and extends axially to form a convex extension body 106 matched with the inner peripheral wall of the first groove 201, a smoke storage tube 105 corresponding to the first opening 103 is connected to one end of the convex extension body 106, and a heating cavity 104 is formed in the smoke storage tube 105 in a hollow mode; the sliding part 101 is disposed in the second groove 102 and can slide along the inner peripheral wall of the second groove 102, and it should be noted that the sliding part 101 slides to one end of the second groove 102 to load cigarettes or tobacco materials from the first opening 103, and the sliding part 101 slides to the other end of the second groove 102 to cover the first opening 103.

The fixing piece 1 is installed in a cavity 1401 formed at one end of the shell 14 and can be detached, the convex extension 106 is positioned in the first groove 201, the smoke storage tube 105 is inserted into the air duct 203 from the second opening 202, and an air duct channel 204 is formed by a gap between the outer peripheral wall of the smoke storage tube 105 and the inner peripheral wall of the air duct 203. It should be noted that, during smoking, the air flow enters from the gap between the outer peripheral wall of the convex extension body 106 and the inner peripheral wall of the first groove 201, then enters from the first through hole 301 into the hot air flow chamber 302 through the air guide channel 204 to drive the hot air generated by the heating element 3 to be emitted to each position of the cigarette or the tobacco material and the heating chamber 104, after the cigarette or the tobacco material is heated by the heating element 3 and the hot air to generate smoke, the smoke can be discharged through the first opening 103 along with the air flow, or sucked from the filter tip cigarette outside the first opening 103.

The end part of one end of the air duct 203 is internally provided with a sealing piece 4 for sealing the air duct 204, the sealing piece 4 is provided with a third groove 401, the third groove 401 is internally provided with a second through hole 402, the end part of one end of the heating element 3 is inserted into the third groove 401 for fixing, a hot air flow cavity 302 formed in the heating element 3 corresponds to the second through hole 402, and a conducting wire of the temperature sensor 5 penetrates through the second through hole 402 to be electrically connected with the high-frequency control board 8.

Specifically, as shown in fig. 1-3, the flue-cured tobacco heating smoking set of this embodiment includes: the fixing part 1, a shell cover 2, a heating element 3, a sealing element 4, a temperature sensor 5, a support 6, a magnetic induction coil 7, a high-frequency control board 8, an electric core 9, a power supply key 10, a light guide element 11, a power supply key support 12, a decoration sheet 13 and a shell 14, wherein the output end of the electric core 9 is welded at the input end of the high-frequency control board 8 and used for supplying power to the high-frequency control board 8, the output end of the high-frequency control board 8 is welded at the input end of the magnetic induction coil 7 and used for supplying alternating current to the magnetic induction coil 7, the high-frequency control board 8 is provided with an LC oscillating circuit which can enable the high-frequency control board 8 to output alternating current, the top of the shell 14 is provided with a cavity space 1401, an inwards concave space 601 is formed in the support 6, the support 6 is installed in the shell 14 for fixing, the magnetic induction coil 7, the high-frequency control board 8 and the electric core 9 are all installed in the inwards concave space 601 formed in the support 6 and the magnetic induction coil 7 is positioned in the cavity space 1401, the power supply key 10 is arranged on the high-frequency control panel 8 and used for controlling the power supply to be turned on or off, the light guide part 11 is arranged on the high-frequency control panel 8 and used for conducting power in a perspective mode, charging and lighting information in an absence of power, the power supply key support 12 is provided with a key hole 1201 and a lamp hole 1202, the power supply key support 12 is arranged on one side of the shell 14, the power supply key 10 is exposed out of the key hole 1201, the light guide part 11 corresponds to the lamp hole 1202, the decorative sheet 13 is pasted on the surface of the power supply key support 12 for fixation, the shell cover 2 is arranged in a cavity space formed on the top of the shell 1401 for fixation, the top of the shell cover 2 is provided with a first groove 201, the bottom wall of the first groove 201 is provided with a second opening 202, the shell cover 2 protrudes inwards from the second opening 202 to form a gas guide pipe 203, the gas guide pipe 203 extends into an annular space 701 formed by the magnetic induction coil 7, the top of the fixing part 1 is provided with a second groove 102, the first opening 103 is arranged on the bottom wall of the second groove 102, a sliding part 101 which can slide along the inner peripheral wall of the second groove 102 is arranged in the second groove 102, wherein the sliding part 101 can slide to one end of the second groove 102 to load cigarettes or tobacco materials from the first opening 103, the sliding part 101 can slide to the other end of the second groove 102 to cover the first opening 103, the lower end of the fixing part 1 is constricted and extends axially to form a convex extension body 106 matched with the inner peripheral wall of the first groove 201, the bottom of the convex extension body 106 is connected with a smoke storage tube 105 corresponding to the first opening 103, the smoke storage tube 105 is hollow to form a heating cavity 104, the fixing part 1 is arranged in a cavity space 1401 formed at the top of the shell 14, the fixing part 1 can be detached from the cavity space 1401 to facilitate cleaning and replacement, the convex extension body 106 is arranged in the first groove 201, the smoke storage tube 105 is inserted into the airway 203 from the second opening 202, a gap between the outer peripheral wall of the smoke storage tube 105 and the inner peripheral wall of the airway 203 forms an airway passage 204 for ventilation, the sealing element 4 is arranged in the bottom of the air duct 203 and used for sealing the air guide channel 204, the sealing element 4 is provided with a third groove 401, a second through hole 402 is formed in the third groove 401, the bottom of the heating element 3 is inserted into the third groove 401 and fixed, the heating element 3 is positioned in the heating cavity 104, a hot air flow cavity 302 is formed inside the heating element 3, the temperature sensor 5 is arranged in a first cavity 3021 of the hot air flow cavity 302, two sides of the outer wall of the heating element 3 are respectively provided with a first through hole 301 communicated with the hot air flow cavity 302, the hot air flow cavity 302 formed in the heating element 3 corresponds to the second through hole 402, a conducting wire 501 of the temperature sensor 5 penetrates through the second through hole 402 and is welded on the high-frequency control board 8 and used for sensing the heating temperature of the heating element 3, and the temperature sensor 5 feeds back temperature information to the high-frequency control board. Referring to fig. 4, the air flow direction principle of the tobacco heating smoking set of this embodiment is specifically described, when smoking, the air flow enters from the gap between the outer peripheral wall of the convex extension body 106 and the inner peripheral wall of the first groove 201, and then enters from the first through hole 301 to the hot air flow chamber 302 through the air guide channel 204 to drive the heating element 3 to generate heat, and the hot air is emitted to each position of the cigarette or the tobacco material and the heating chamber 104, after the cigarette or the tobacco material is heated by the heating element 3 and the hot air to generate smoke, the smoke can be discharged through the first opening 103 along with the air flow, or sucked from the filter tip of the cigarette outside the first opening 103.

The following is a description by way of different examples.

Example 1

As shown in fig. 5, the heating element 3 is elongated, and one end of the heating element 3 is a closed end and has a triangular tip, so as to be conveniently inserted into the cured tobacco. The heating element 3 comprises an annular wall 308, the annular wall 308 is a hollow annular space, the annular space is sealed by pressing part of the annular wall 308 to form an elongated body 307, and a corresponding raised bulge structure is formed by the pressing, the bulge structure forms a first surrounding wall 309 and a second surrounding wall (not shown in the figure), the first surrounding wall 309 and the second surrounding wall form a hot air flow chamber, and the hot air flow chamber 302 is used as a first chamber 3021. Wherein, one end of the first chamber 3021 is closed, and the other end is open, which facilitates the installation of the temperature sensor 5. The first wall 309 and the second wall serving as the chamber wall of the first chamber 3021 are respectively provided with a first through hole 301.

Example 2

As shown in fig. 6, the heating element 3 includes an elongated blade 307 and a tube 306, and one end of the elongated blade 307 has a triangular tip. One end of the tube body 306 is a closed end, and the other end of the tube body 306 is open, so that the temperature sensor 5 is convenient to install. The elongated sheet 307 is formed with a notch 305 along the length direction, the closed end of the tube 306 extends into the notch 305, and the tube 306 is fixedly mounted in the notch 305. The tube body 306 comprises a first wall 309 and a second wall which are integrally formed, and the inside of the tube body 306 corresponds to a first chamber 3021 which is formed by the first wall 309 and the second wall. And the first wall 309 and the second wall are raised with respect to the two sides of the elongate blade 307 respectively. The first wall 309 and the second wall of the chamber wall as the first chamber 3021 are provided with a first through hole 301, respectively.

Example 3

As shown in fig. 7, the heating element 3 is elongated, has a closed end at one end and has a triangular tip for easy insertion into the cured tobacco. The heating element 3 comprises an annular wall 308, the annular wall 308 enclosing an annular space. The shape of the annular space is not limited and is determined as desired. In this embodiment the annular space is flat, so that the whole of the heating element 3 is still in the form of an elongated plate.

The hot gas flow chamber 302 includes a first chamber 3021 and a second chamber 3022. The annular wall 308 is provided with a first wall 309 and a second wall arranged opposite to each other, the first wall 309 and the second wall enclosing a first chamber 3021. The area within the annular space outside of the first chamber 3021 serves as the second chamber 3022.

Wherein, a distance exists between two side ends of the first enclosing wall 309 and two side ends of the second enclosing wall, so as to communicate the first chamber 3021 and the second chamber 3022. In other embodiments, two side ends of the first surrounding wall 309 and two side ends of the second surrounding wall are connected to each other or integrally formed, and a through hole is formed at the intersection of the first surrounding wall 309, the second surrounding wall and/or the two, so as to communicate the first chamber 3021 with the second chamber 3022. The first wall 309 and the second wall are each convex towards the outside with respect to the annular wall 108. In other embodiments, the outer sidewalls of the first wall 309 and the second wall are each attached to the inner sidewall of the annular wall 308, that is, the first chamber 3021 is located entirely within the annular space.

Wherein the first chamber 3021 has an open end for easy installation of the temperature sensor 5. The other end of the first chamber 3021 is connected to the second chamber 3022 to facilitate the uniform distribution of the hot gas flow.

In the present embodiment, the annular wall 308 as the chamber wall of the second chamber 3022 is opened with a first through hole 301, and the first through hole 301 directly penetrates from the second chamber 3022 to the outside of the heating element 3.

Example 4

As shown in fig. 8, the difference from embodiment 3 is that: in addition to the first through hole 301 formed in the annular wall 308 serving as the chamber wall of the second chamber 3022, the first through hole 301 is formed in each of the first and

second walls

309 and 301 serving as the chamber wall of the first chamber 3021.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a flue-cured tobacco heating smoking set, its characterized in that, includes smoking set main part and high frequency control subassembly, smoking set main part one end tip is formed with the first opening that supplies to be put into by the flue-cured tobacco, form the heating chamber within the first opening, be equipped with the heating within the heating chamber by the heating element of flue-cured tobacco, high frequency control subassembly sets up control after the circular telegram outside the heating chamber heating element generates heat.

2. The tobacco heating smoking set of claim 1, wherein a hot air flow chamber is formed in the heating element, and at least one first through hole is formed in a chamber wall of the hot air flow chamber, and the first through hole penetrates from the hot air flow chamber to the outside of the heating element.

3. The flue-cured tobacco heating smoking set of claim 2, wherein the high frequency control assembly comprises a magnetic induction coil and a power supply control part, the magnetic induction coil is used for generating an induction magnetic field to enable the heating element to generate heat, the power supply control part is electrically connected with the magnetic induction coil and used for providing alternating current for the magnetic induction coil, an annular space is formed in the magnetic induction coil, and the heating cavity is located in the annular space.

4. The flue-cured tobacco heating smoking set of claim 3, wherein the power supply control part comprises an electric core and a high-frequency control board, the electric core is electrically connected with the high-frequency control board and used for supplying power to the high-frequency control board, and the high-frequency control board is electrically connected with the magnetic induction coil and the temperature sensor respectively and used for supplying alternating current to the magnetic induction coil and receiving temperature change information of the heating element induced by the temperature sensor.

5. A flue-cured tobacco heating smoking set according to any one of claims 1-4, wherein the smoking set body comprises a casing, a cavity space is opened at one end of the casing, a bracket is installed in the casing, an inner concave space is formed in the bracket, the high-frequency control assembly is installed in the inner concave space formed in the bracket, and the magnetic induction coil of the high-frequency control assembly is located in the cavity space.

6. A flue-cured tobacco heating smoking set as claimed in claim 5, wherein the smoking set body further comprises a housing cover, the housing cover is mounted in the cavity space formed at one end of the housing, a first groove is formed at one end of the housing cover, a second opening is formed in the bottom wall of the first groove, the housing cover protrudes inwards from the second opening to form an air duct, and the air duct extends into the annular space formed by the magnetic induction coil.

7. The tobacco heating smoking set of claim 6, wherein the smoking set body further comprises a fixing member for storing cigarettes or tobacco materials, a second groove is formed in one end of the fixing member, the first opening is formed in the bottom wall of the second groove, a sliding member capable of extending the inner peripheral wall of the second groove to slide is arranged in the second groove, the fixing member is far away from the necking at one end of the second groove and axially extends to form a protruding extending body matched with the inner peripheral wall of the first groove, one end of the protruding extending body is connected with a tobacco storage tube corresponding to the first opening, and a heating cavity is formed in the tobacco storage tube in a hollow mode.

8. A flue-cured tobacco heating smoking set as claimed in claim 7, wherein the fixing member is detachably mounted in a cavity space formed at one end of the housing, the convex extender is located in the first groove, the smoke storage tube is inserted into the air duct from the second opening, and an air duct is formed by a gap between the outer peripheral wall of the smoke storage tube and the inner peripheral wall of the air duct.

9. The flue-cured tobacco heating smoking set of claim 8, wherein a sealing element for sealing the air guide channel is installed in one end of the air guide tube, a third groove is formed in the sealing element, a second through hole is formed in the third groove, one end of the heating element is inserted into the third groove and fixed, a hot air flow cavity formed in the heating element corresponds to the second through hole, and a conducting wire of the temperature sensor penetrates through the second through hole and is electrically connected with the high-frequency control board.

10. The cured tobacco heating smoking set of claim 2, further comprising a temperature sensor, the hot gas flow chamber having a first chamber, the temperature sensor being disposed within the first chamber, the heating element being elongated, the first chamber extending along a length of the heating element, the first chamber being located at an intermediate position of the heating element.