WO2021249084A1

WO2021249084A1 - Heating assembly for aerosol-generating substrate

Info

Publication number: WO2021249084A1
Application number: PCT/CN2021/092708
Authority: WO
Inventors: 刘华臣; 李丹
Original assignee: 湖北中烟工业有限责任公司
Priority date: 2020-06-12
Filing date: 2021-05-10
Publication date: 2021-12-16
Also published as: CN112369715A

Abstract

Disclosed is a heating assembly for an aerosol-generating substrate, comprising an electromagnetic heating body for heating the aerosol-generating substrate and an infrared heating body for heating the aerosol-generating substrate, wherein the infrared heating body and the electromagnetic heating body are compounded to become one body, and the infrared heating body is arranged to be closer to a side of the aerosol-generating substrate than the electromagnetic heating body is. The infrared heating body and the electromagnetic heating body are compounded to become one body by means of physical pressing, spraying, coating, electroplating or bonding. According to the present invention, electromagnetic induction heating and infrared radiation heating may be simultaneously implemented on the aerosol-generating substrate, so that the heating efficiency can be improved, and the heating uniformity is good.

Description

Heating assembly for smoking substrate

Technical field

The invention belongs to the technical field of novel tobacco products, and in particular relates to a heating assembly used for a smoking substrate.

Background technique

At present, low-temperature cigarettes are usually heated by heating resistors, such as MCH ceramic heating elements (metal ceramic heating elements), which generally transfer heat to the temperature conductive layer through the heating resistors, and then to the tobacco products. The heat transfer method is heat conduction. However, because the heating resistance is not uniformly distributed inside the tobacco product, and there is a gap in the contact between the tobacco product and the temperature conductive layer, the heating efficiency is inevitably low, and the tobacco products in different positions are heated unevenly, which leads to heat generation. Tobacco products (shredded tobacco) that are in contact with the resistance are easily coked and carbonized, and even adhere to the surface of the heating resistor. After use, the tobacco products (shredded tobacco) are not easily separated from the heating resistor, and it will also pollute the heating resistor and reduce the service life of the heating resistor.

Technical solutions

The purpose of the present invention is to provide a heating assembly for a smoking substrate in view of the shortcomings of the prior art, which can improve the heating efficiency and has good heating uniformity.

In order to solve the above technical problems, the present invention adopts the following technical solution: a heating assembly for a smoking substrate, comprising an electromagnetic heating element for heating the smoking substrate and an infrared heating element for heating the smoking substrate The infrared heating element and the electromagnetic heating element are combined into one body, and the infrared heating element is arranged closer to the smoking substrate side than the electromagnetic heating element.

In a specific embodiment, the infrared heating element and the electromagnetic heating element are combined into one body by physical pressing, spraying, coating, electroplating or bonding.

In a specific embodiment, the composite body of the infrared heating body and the electromagnetic heating body is used to be arranged inside the smoking substrate.

In a specific embodiment, the composite body of the infrared heating element and the electromagnetic heating element is arranged in a rod shape, a pointed rod shape, a sheet shape, a pointed sheet shape, a blade shape, and a cone shape. One of shape, polygon, cube, cuboid, triangular prism, tetragonal prism and pentagonal prism.

In a specific embodiment, the composite body of the infrared heating element and the electromagnetic heating element is used to be arranged outside the smoking substrate.

In a specific embodiment, the composite body of the infrared heating element and the electromagnetic heating element is arranged in a cylindrical shape, an elliptical cylindrical shape, a square cylindrical shape, a rectangular cylindrical shape, a rhombic cylindrical shape, and a polygonal cylindrical shape. One of them.

In a specific embodiment, when the number of the complex of the infrared heating element and the electromagnetic heating element is multiple, the plurality of the infrared heating element and the complex of the electromagnetic heating element are respectively used It is arranged inside and outside the smoking substrate.

In a specific embodiment, the composite body of the infrared heating body and the electromagnetic heating body is used for mixing with the smoking substrate; or the composite body of the infrared heating body and the electromagnetic heating body It is used to be embedded in the smoking substrate and integrally formed with the smoking substrate.

In a specific embodiment, the composite body of the infrared heating body and the electromagnetic heating body is arranged in particles.

In a specific embodiment, the electromagnetic heating element is made of one or more of iron, cobalt, nickel, aluminum, ferrite, and alloys.

In a specific embodiment, the infrared heating element is made of one or more of perovskite, silicon carbide, magnesia tourmaline, spodumene, and glauberite.

In a specific embodiment, the bottom of the composite body of the infrared heating body and the electromagnetic heating body is provided with a base for fixing the heating assembly in the smoking device.

Beneficial effect

Compared with the prior art, the beneficial effects of the present invention are:

1. The heating assembly of the present invention is equipped with an electromagnetic heating element and an infrared heating element, which can simultaneously realize electromagnetic induction heating and infrared radiation heating for the smoking substrate. The combined heating method enables heat to be transferred in the form of conduction and radiation, thereby improving heating High efficiency and good heating effect, so the time from heating to atomization of the smoking substrate is shortened, and the heating uniformity is good.

2. The infrared heating element and the electromagnetic heating element of the heating assembly of the present invention are combined into one body through physical pressing, spraying, coating, electroplating or bonding, which has good stability and good reliability.

3. The heating assembly of the present invention can not only realize internal heating or external heating, but also realize internal heating and external heating at the same time, thereby further improving the heating efficiency, enhancing the heating effect, and further shortening the time from heating to atomization of the smoking substrate. And can further improve the heating uniformity.

4. The heating assembly of the present invention also includes a base, which can quickly fix the heating assembly in the smoking device.

5. The heating assembly of the present invention has a simple structure, is convenient to use, and has a broad market prospect.

Description of the drawings

Figure 1 shows a schematic top view of Embodiment 1 of a heating assembly for a smoking substrate of the present invention;

Figure 2 shows a schematic structural view of Embodiment 2 of a heating assembly for a smoking substrate of the present invention;

Figure 3 shows a schematic structural view of Embodiment 3 of a heating assembly for a smoking substrate of the present invention;

Fig. 4 shows a schematic top view of Fig. 3;

Figure 5 shows a schematic structural view of Embodiment 4 of a heating assembly for a smoking substrate of the present invention;

Fig. 6 shows a schematic top view of Fig. 5;

Figure 7 shows a schematic structural view of Embodiment 5 of a heating assembly for a smoking substrate of the present invention;

FIG. 8 shows a schematic top view of FIG. 7.

Among them, 1-iron cylindrical electromagnetic heating element; 2-perovskite cylindrical infrared heating element; 3-plate body; 31-through hole; 4-aluminum sheet electromagnetic heating element; 5-silicon carbide infrared heating element Heating element; 6-base; 7-first electromagnetic heating element; 8-first infrared heating element; 9-second electromagnetic heating element; 10-second infrared heating element; 11-nickel-cobalt round rod electromagnetic heating element ; 12- Magnesia tourmaline, spodumene, perovskite infrared heating element; 13-third electromagnetic heating element; 14-third infrared heating element; 15-fourth electromagnetic heating element; 16-fourth infrared heating element.

Embodiments of the present invention

The present invention will be further described below in conjunction with the embodiments shown in the drawings.

Example one

As shown in FIG. 1, this embodiment includes an iron cylindrical electromagnetic heating element 1 for heating the smoking substrate and a perovskite cylindrical infrared heating element 2 for heating the smoking substrate. Among them, the perovskite cylindrical infrared heating element 2 and the iron cylindrical electromagnetic heating element 1 are combined into one body, and the perovskite cylindrical infrared heating element 2 is arranged closer to the generator than the iron cylindrical electromagnetic heating element 1. Smoke substrate side. When in use, the iron cylindrical electromagnetic heating element 1 is in a high-frequency magnetic field, and the iron cylindrical electromagnetic heating element 1 is induced by the magnetic field to generate heat, thereby heating the smoking substrate, and the heat transfer of the iron cylindrical electromagnetic heating element 1 To the perovskite cylindrical infrared heating element 2, the perovskite cylindrical infrared heating element 2 generates infrared radiation after being heated, and the perovskite cylindrical infrared heating element 2 heats the smoking substrate by infrared radiation, and the heating assembly can Both electromagnetic induction heating and infrared radiant heating are realized for the fuming substrate. The combined heating method enables heat to be transferred in the form of conduction and radiation, thereby improving the heating efficiency and the heating effect, thus shortening the heating of the fuming substrate from heating to atomization. Time, and the heating uniformity is good.

Further, the iron cylindrical electromagnetic heating element 1 is sleeved outside the perovskite cylindrical infrared heating element 2.

Further, the perovskite cylindrical infrared heating element 2 and the iron cylindrical electromagnetic heating element 1 are combined into one body by physical pressing, which has good stability and reliability.

Further, the composite body of the perovskite cylindrical infrared heating element 2 and the iron cylindrical electromagnetic heating element 1 is used to be arranged on the outside of the smoking substrate, which can realize external heating.

Further, the smoking substrate includes tobacco flakes, tobacco particles and/or tobacco shreds.

Furthermore, the perovskite cylindrical infrared heating element 2 is provided with a plate 3 for placing the smoking substrate inside, which can prevent the smoking substrate from falling off.

Furthermore, the plate body 3 is provided with a through hole 31 for keeping the air path unobstructed. The number of the through holes 31 is one or more, which can be set according to actual needs; or the through holes 31 are not provided, and the intake air flows through the gap formed by the fuming substrate and the perovskite cylindrical infrared heating element 2.

Further, the number of through holes 31 is four. The four through holes 31 are arranged on the plate 3 at intervals, which can effectively ensure that the airway of the smoking substrate is unobstructed during the inhalation process.

Example two

As shown in FIG. 2, this embodiment includes an aluminum sheet electromagnetic heating element 4 for heating the smoking substrate and a silicon carbide infrared heating element 5 for heating the smoking substrate. Among them, the silicon carbide infrared heating element 5 and the aluminum sheet electromagnetic heating element 4 are combined into one body, and the silicon carbide infrared heating element 5 is arranged closer to the smoking substrate side than the aluminum sheet electromagnetic heating element 4. When in use, the aluminum sheet electromagnetic heating element 4 is in a high-frequency magnetic field, and the aluminum sheet electromagnetic heating element 4 is induced by the magnetic field to generate heat, thereby heating the smoking substrate, and the heat transfer of the aluminum sheet electromagnetic heating element 4 To the silicon carbide infrared heating element 5, the silicon carbide infrared heating element 5 generates infrared radiation after being heated, and the silicon carbide infrared heating element 5 heats the smoking substrate by infrared radiation, and the heating component can simultaneously realize electromagnetic induction heating to the smoking substrate Combined with infrared radiation heating, the combined heating method enables heat to be transferred in the form of conduction and radiation, thereby improving the heating efficiency, and the heating effect is good, so the time from heating to atomization of the smoking substrate is shortened, and the heating uniformity is good.

Furthermore, the silicon carbide infrared heating element 5 is wrapped on the outside of the aluminum sheet electromagnetic heating element 4.

Further, the silicon carbide infrared heating element 5 and the aluminum sheet electromagnetic heating element 4 are combined into one body by bonding, which has good stability and reliability.

Further, the composite body of the silicon carbide infrared heating element 5 and the aluminum sheet electromagnetic heating element 4 is used to be arranged inside the smoking substrate, which can realize internal heating.

Further, the bottom of the composite body of the silicon carbide infrared heating element 5 and the aluminum sheet electromagnetic heating element 4 is provided with a base 6 for fixing the heating component in the smoking device, which has a simple structure and is convenient to use.

Example three

As shown in Figures 3 and 4, this embodiment includes a first heating component that can realize external heating and a second heating component that can realize internal heating. Wherein, the first heating assembly includes a first electromagnetic heating body 7 for heating the smoking substrate and a first infrared heating body 8 for heating the smoking substrate. The first electromagnetic heating body 7 and the first infrared heating body 8 are combined into one body, and the first infrared heating body 8 is arranged closer to the smoking substrate side than the first electromagnetic heating body 7. The second heating assembly includes a second electromagnetic heating element 9 for heating the smoking substrate and a second infrared heating element 10 for heating the smoking substrate. The second electromagnetic heating body 9 and the second infrared heating body 10 are combined into one body, and the second infrared heating body 10 is arranged closer to the smoking substrate side than the second electromagnetic heating body 9. When in use, the first electromagnetic heating element 7 and the second electromagnetic heating element 9 are respectively in a high-frequency magnetic field, and the first electromagnetic heating element 7 and the second electromagnetic heating element 9 are respectively induced by the magnetic field to generate heat, thereby heating the smoking substrate , The heat of the first electromagnetic heating element 7 and the second electromagnetic heating element 9 are respectively transferred to the first infrared heating element 8 and the second infrared heating element 10, and both the first infrared heating element 8 and the second infrared heating element 10 are generated after being heated Infrared radiation, the first infrared heating element 8 and the second infrared heating element 10 respectively heat the fuming substrate by infrared radiation. The combined heating method enables heat to be transferred in the form of internal and external conduction and internal and external radiation, thereby enabling further The heating efficiency is improved and the heating effect is good, so the time from heating to atomization of the smoking substrate is further shortened, and the heating uniformity is good.

Further, the first electromagnetic heating body 7 is sleeved outside the first infrared heating body 8.

Furthermore, the first infrared heating element 8 and the first electromagnetic heating element 7 are combined into one body by physical pressing, which has good stability and reliability.

Further, the composite body of the first infrared heating body 8 and the first electromagnetic heating body 7 is used to be arranged outside the smoking substrate, which can realize external heating.

Further, the first infrared heating element 8 is provided with a plate 3 for placing the smoking substrate, which can prevent the smoking substrate from falling off.

Furthermore, the plate body 3 is provided with a through hole 31 for keeping the air path unobstructed. The number of the through holes 31 is one or more, which can be set according to actual needs; or the through holes 31 are not provided, and the intake air flows through the gap formed by the smoking substrate and the first infrared heating body 8.

Further, the first electromagnetic heating element 7 is configured as a cylindrical electromagnetic heating element. The first infrared heating element 8 is arranged as a cylindrical infrared heating element.

Furthermore, the second infrared heating element 10 is wrapped around the outside of the second electromagnetic heating element 9.

Further, the second infrared heating element 10 and the second electromagnetic heating element 9 are combined into one body by bonding, which has good stability and reliability.

Further, the composite body of the second infrared heating body 10 and the second electromagnetic heating body 9 is used to be arranged inside the smoking substrate, which can realize internal heating.

Further, the bottom of the composite body of the second infrared heating body 10 and the second electromagnetic heating body 9 is provided with a base 6 for fixing the heating assembly in the smoking device, which has a simple structure and is convenient to use.

Further, the top of the composite body of the second infrared heating element 10 and the second electromagnetic heating element 9 passes through the inner plate 3 of the first infrared heating element 8 and is arranged inside the first infrared heating element 8.

Further, the base 6 of the composite of the second infrared heating element 10 and the second electromagnetic heating element 9 is arranged at the bottom of the composite of the first infrared heating element 8 and the first electromagnetic heating element 7.

Further, the second electromagnetic heating element 9 is provided as a sheet-type electromagnetic heating element.

Embodiment four

As shown in FIG. 5 and FIG. 6, the present embodiment includes a nickel-cobalt round-bar electromagnetic heating element 11 and an infrared heating element 12 of magnesium tourmaline, spodumene, and perovskite. Among them, the magnesium tourmaline, spodumene, perovskite infrared heating element 12 and the nickel-cobalt round rod electromagnetic heating element 11 are compounded into one body, and the magnesium tourmaline, spodumene, and perovskite infrared heating element 12 is set into one It is closer to the smoking substrate side than the nickel-cobalt round rod type electromagnetic heating element 11. When in use, the nickel-cobalt round-bar electromagnetic heating element 11 is in a high-frequency magnetic field, and the nickel-cobalt round-bar electromagnetic heating element 11 is induced by the magnetic field to generate heat, thereby heating the smoking substrate. The heat of the heating element 11 is transferred to the forcite, spodumene, and perovskite infrared heating element 12. The forcite, spodumene, and perovskite infrared heating element 12 generates infrared radiation after being heated, and the forcite, spodumene and spodumene The stone and perovskite infrared heating element 12 heats the smoking substrate by infrared radiation. The heating assembly can realize electromagnetic induction heating and infrared radiation heating for the smoking substrate at the same time. The combined heating method enables heat to be transferred in the form of conduction and radiation, thereby The heating efficiency can be improved, and the heating effect is good, so the time from heating to atomization of the smoking substrate is shortened, and the heating uniformity is good.

Furthermore, the infrared heating element 12 of magnesium tourmaline, spodumene, and perovskite is coated on the outside of the nickel-cobalt round-rod electromagnetic heating element 11.

Further, the infrared heating element 12 of magnesium tourmaline, spodumene, perovskite and the round-rod electromagnetic heating element 11 of nickel-cobalt are combined into one body by bonding, which has good stability and good reliability.

Further, the composite body of magnesium tourmaline, spodumene, perovskite infrared heating element 12 and nickel-cobalt round-rod electromagnetic heating element 11 is used to be arranged inside the smoking substrate to achieve internal heating.

Further, the bottom of the composite body of the magnesium tourmaline, spodumene, perovskite infrared heating element 12 and the nickel-cobalt round rod type electromagnetic heating element 11 is provided with a base 6 for fixing the heating component in the smoking device, and the structure Simple and easy to use.

Embodiment five

As shown in Figures 7 and 8, this embodiment includes a third heating component that can realize external heating and a fourth heating component that can realize internal heating. Wherein, the third heating assembly includes a third electromagnetic heating element 13 for heating the smoking substrate and a third infrared heating element 14 for heating the smoking substrate. The third electromagnetic heating element 13 and the third infrared heating element 14 are combined into one body, and the third infrared heating element 14 is arranged closer to the smoking substrate side than the third electromagnetic heating element 13. The fourth heating assembly includes a fourth electromagnetic heating element 15 for heating the smoking substrate and a fourth infrared heating element 16 for heating the smoking substrate. The fourth electromagnetic heating element 15 and the fourth infrared heating element 16 are combined into one body, and the fourth infrared heating element 16 is arranged closer to the smoking substrate side than the fourth electromagnetic heating element 15. When in use, the third electromagnetic heating element 13 and the fourth electromagnetic heating element 15 are respectively in a high-frequency magnetic field, and the third electromagnetic heating element 13 and the fourth electromagnetic heating element 15 are respectively induced by the magnetic field to generate heat, thereby heating the smoking substrate , The heat of the third electromagnetic heating element 13 and the fourth electromagnetic heating element 15 is transferred to the third infrared heating element 14 and the fourth infrared heating element 16, respectively, the third infrared heating element 14 and the fourth infrared heating element 16 are both generated after being heated Infrared radiation, the third infrared heating body 14 and the fourth infrared heating body 16 respectively heat the smoking substrate by infrared radiation. The heating assembly can simultaneously realize internal and external electromagnetic induction heating and internal and external infrared radiation heating for the smoking substrate. , The composite heating method enables heat to be transferred in the form of internal and external conduction and internal and external radiation, which can further improve the heating efficiency and the heating effect is good, thus further shortening the time from heating to atomization of the smoking substrate, and The heating uniformity is good.

Further, the third electromagnetic heating body 13 is sleeved outside the third infrared heating body 14.

Further, the third infrared heating element 14 and the third electromagnetic heating element 13 are combined into one body by physical pressing, which has good stability and reliability.

Further, the composite body of the third infrared heating body 14 and the third electromagnetic heating body 13 is used to be arranged outside the smoking substrate, which can realize external heating.

Furthermore, the third infrared heating element 14 is provided with a plate 3 for placing the smoking substrate, which can prevent the smoking substrate from falling off.

Furthermore, the plate body 3 is provided with a through hole 31 for keeping the air path unobstructed. The number of the through holes 31 is one or more, which can be set according to actual needs; or the through holes 31 are not provided, and the intake air flows through the gap formed by the smoking substrate and the third infrared heating element 14.

Further, the third electromagnetic heating element 13 is provided with a rectangular cylindrical electromagnetic heating element. The third infrared heating element 14 is arranged as a cylindrical infrared heating element.

Further, the fourth infrared heating element 16 is wrapped around the outside of the fourth electromagnetic heating element 15.

Furthermore, the fourth infrared heating element 16 and the fourth electromagnetic heating element 15 are combined into one body by bonding, which has good stability and reliability.

Further, the composite body of the fourth infrared heating element 16 and the fourth electromagnetic heating element 15 is used to be arranged inside the smoking substrate, which can realize internal heating.

Furthermore, the bottom of the composite body of the fourth infrared heating element 16 and the fourth electromagnetic heating element 15 is provided with a base 6 for fixing the heating assembly in the smoking device, which has a simple structure and is convenient to use.

Furthermore, the top of the composite body of the fourth infrared heating element 16 and the fourth electromagnetic heating element 15 passes through the inner plate 3 of the third infrared heating element 14 and is arranged inside the third infrared heating element 14.

Further, the base 6 of the composite of the fourth infrared heating element 16 and the fourth electromagnetic heating element 15 is arranged at the bottom of the composite of the third infrared heating element 14 and the third electromagnetic heating element 13.

Further, the fourth electromagnetic heating element 15 is configured as a round rod type electromagnetic heating element.

The protection scope of the present invention is not limited to the above-mentioned embodiments. Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the scope and spirit of the present invention. If these changes and modifications belong to the scope of the claims of the present invention and their equivalent technologies, the intent of the present invention also includes these changes and modifications.

Claims

A heating assembly for a smoking substrate, which is characterized in that it comprises an electromagnetic heating element for heating the smoking substrate and an infrared heating element for heating the smoking substrate, the infrared heating element and the The electromagnetic heating element is combined into one body, and the infrared heating element is arranged closer to the smoking substrate side than the electromagnetic heating element.
The heating assembly for a smoking substrate according to claim 1, wherein the infrared heating element and the electromagnetic heating element are combined into one body by physical pressing, spraying, coating, electroplating or bonding.
The heating assembly for a smoking substrate according to claim 1, wherein the composite body of the infrared heating element and the electromagnetic heating element is configured to be arranged inside the smoking substrate.
The heating assembly for a smoking substrate according to claim 3, wherein the composite body of the infrared heating element and the electromagnetic heating element is arranged in a rod shape, a pointed rod shape, or a sheet body. One of shape, pointed flake shape, blade shape, cone shape, polygon, cube, cuboid, triangular prism, quadrangular prism, and pentagonal prism.
The heating assembly for a smoking substrate according to claim 1, wherein the composite body of the infrared heating element and the electromagnetic heating element is configured to be arranged outside the smoking substrate.
The heating assembly for a smoking substrate according to claim 5, wherein the composite body of the infrared heating element and the electromagnetic heating element is arranged in a cylindrical shape, an elliptical cylindrical shape, a square cylindrical shape, One of rectangular cylinder, rhombic cylinder and polygonal cylinder.
The heating assembly for a smoking substrate according to claim 1, wherein when the number of the composite body of the infrared heating element and the electromagnetic heating element is more than one, a plurality of the infrared heating element is The composite body and the electromagnetic heating body are respectively used to be disposed inside and outside the smoking substrate.
The heating assembly for a smoking substrate according to claim 1, wherein the composite body of the infrared heating element and the electromagnetic heating element is used for mixing with the smoking substrate; or

The composite body of the infrared heating element and the electromagnetic heating element is used to be embedded in the smoking substrate and integrally formed with the smoking substrate.
8. The heating assembly for a smoking substrate according to claim 8, wherein the composite body of the infrared heating element and the electromagnetic heating element is arranged in particles.
The heating assembly for a smoking substrate according to claim 1, wherein the electromagnetic heating element is made of one or more of iron, cobalt, nickel, aluminum, ferrite, and alloys.
The heating assembly for a smoking substrate according to claim 1, wherein the infrared heating element is one or more of perovskite, silicon carbide, magnesia tourmaline, spodumene, and glauberite production.
The heating assembly for a smoking substrate according to claim 1, wherein the bottom of the composite body of the infrared heating element and the electromagnetic heating element is provided for fixing the heating element to the smoking device Inside the base.