(19)
(11) EP 4 483 729 A1

(12) EUROPEAN PATENT APPLICATION
published in accordance with Art. 153(4) EPC

(43) Date of publication:
01.01.2025 Bulletin 2025/01

(21) Application number: 22933203.6

(22) Date of filing: 29.12.2022
(51) International Patent Classification (IPC): 
A24F 40/46(2020.01)
A24F 40/20(2020.01)
A24F 40/40(2020.01)
A24D 1/20(2020.01)
(86) International application number:
PCT/CN2022/143279
(87) International publication number:
WO 2023/179156 (28.09.2023 Gazette 2023/39)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA
Designated Validation States:
KH MA MD TN

(30) Priority: 25.03.2022 CN 202210305700

(71) Applicant: Shenzhen Merit Technology Co., Ltd.
Shenzhen, Guangdong 518105 (CN)

(72) Inventors:
  • LIANG, Feng
    Shenzhen, Guangdong 518105 (CN)
  • PAN, Fumin
    Shenzhen, Guangdong 518105 (CN)

(74) Representative: Westphal, Mussgnug & Partner, Patentanwälte mbB 
Werinherstraße 79
81541 München
81541 München (DE)

   


(54) CARBON CUP HEATING BODY AND AEROSOL GENERATING PRODUCT CONTAINING SAME


(57) A carbon cup heating body and an aerosol generating product containing same.the carbon cup heating body (l) having a bottom wall and a side wall, the space betwveenthe outer surface and the inner surface of the carbon cup heating body (l) being filled with aferromagnetic metal heating body (l 1), and the inner surface of the carbon cup heating body(1l) being provided with metal foil (l2). In use, no open fire is ignited, and the space between the outer surface and the inner surface of the carbon cup healing body (1) is filled with thefcrromagnctic metal heating body, so that the carbon cup heating body (l) can be easily and wholly ignited by means of an electromagnetic heating mode, after the catbon cup heatingbody is iguited, the aerosol generating product can be independently used without the needof considering whether a heating apparatus has sufficient power and without limitation of thcheating apparatus; and a combustion waste gas generated during the combustion of the carboncup healing body is isolated by the metal foil and will not be inhaled by a human body. thusachicving a good hamn reduction effect.




Description

FIELD



[0001] The present invention relates to the technical field of aerosol generation products, and more specifically, to a carbon cup heating element and an aerosol generation product containing same.

BACKGROUND



[0002] Existing aerosol generation products form an aerosol that can be inhaled by users by heating an aerosol-generating matrix without burning it mainly by means of electric-heating and carbon-heating, so that the content of harmful substances in the aerosol can be reduced, thereby improving the safety and health of smoking of aerosol generation products. Therefore, heat-not-burn aerosol generation products are popular among consumers.

[0003] However, existing aerosol generation products generally have issues with user convenience. The electric-heating aerosol generation product needs to be used together with a heating device during use, and it is limited by the power consumption of the heating device, making it less convenient to use. The carbon-heating aerosol generation products do not require the additional heating device during use. However, during the heating process of this type of product, open flames are utilized to ignite a carbon heat source from the outside, and the ignition is difficult. In addition, when the carbon heat source is ignited, the carbon heat source can only burn locally, resulting in non-uniform carbon heating and poor heat conduction capability, and there is also a problem that when using the aerosol generation product, the waste gas produced by the combustion of the carbon heat source can easily be inhaled by the user, resulting in an unclear harm reduction effect.

[0004] In order to solve the above problems, the present invention is proposed.

SUMMARY



[0005] The present invention provides a carbon cup heating element and an aerosol generation product including the carbon cup heating element, so as to improve the convenience of using the aerosol generation product.

[0006] The first aspect of the present invention provides a carbon cup heating element, which includes a bottom wall and a side wall, a ferromagnetic metal heater 11 is filled between an outer surface and an inner surface of the carbon cup heating element 1, and a metal foil 12 is arranged on the inner surface of the carbon cup heating element 1.

[0007] The carbon cup heating element 1 can be ignited by electromagnetic heating.

[0008] Preferably, the ferromagnetic metal heater 11 includes ferromagnetic metal particles or a ferromagnetic metal layer.

[0009] Preferably, the metal foil 12 has no holes and covers the inner surface of the entire side wall or the inner surface of the entire bottom wall of the carbon cup heating element 1, or covers the inner surface of the entire side wall and the inner surface of the entire bottom wall of the carbon cup heating element 1, playing a role in isolating gas.

[0010] The second aspect of the present invention provides an aerosol generation product including the carbon cup heating element of the first aspect of the present invention, the carbon cup heating element 1 is sleeved on an aerosol-generating matrix 21 of the aerosol generation product.

[0011] Preferably, the downstream of the aerosol-generating matrix 21 further includes a hollow section 22 and/or a cooling section 23 and/or a filter section 24. That is, the downstream of the aerosol-generating matrix 21 may include any one, two, or all three of the following: the hollow section 22, the cooling section 23, and the filter section 24, and, of course, the most preferred configuration is to have all three sections in sequence.

[0012] Preferably, the hollow section 22 provides air inlet 222 that is in communication with the outside environment; the air inlets 222 can be one or multiple.

[0013] Preferably, the carbon cup heating element 1 and the aerosol-generating matrix 21 are integrally connected.

[0014] Preferably, the carbon cup heating element 1 and the aerosol-generating matrix 21 are detachably connected to each other.

[0015] Preferably, the aerosol generation product further includes a wrapping layer 3 wrapping the carbon cup heating element 1, which has a thermochromic material, the thermochromic material is a composite material composed of a chromophoric agent, a color-developing agent, and a solven; the chromophoric agent is selected from but not limited to bromocresol green, fluorine compounds, triarylmethane compounds or schiff base compounds; the color developing agent is selected from but not limited to rare earth ions, phenolic hydroxyl groups compounds and their derivatives or carboxyl groups compounds and their derivatives; the solvent is selected from but not limited to molten compounds, alcohol compounds, higher aliphatic ketone compounds, ester compounds, ether compounds, amide compounds or carboxylic acids compounds.

[0016] Compared with the existing technology, the present invention has the following beneficial effects:
  1. 1. The carbon cup heating element of the present invention has the bottom wall and the side wall, and a ferromagnetic metal heater is filled between the outer surface and the inner surface of the carbon cup heating element. When the carbon cup heating element is placed in a heating device that can generate alternating electromagnetic fields, the ferromagnetic metal heater is heated by means of electromagnetic heating, the ferromagnetic metal heater easily ignites the whole carbon cup heating element from the inside, and the carbon cup heating element heats the aerosol-generating matrix to produce the aerosol for consumers to inhale. The aerosol generation product including the carbon cup heating element can be used alone after the carbon cup heating element is ignited, and the heating device is only used for a moment to ignite the carbon cup heating element and does not need to be continuously used. Therefore, there is no need to consider whether the heating device has sufficient power, and there is no limitation of the heating device. In addition, the ignition by means of electromagnetic heating can also avoid safety hazards associated with open flame ignition.
  2. 2. The inner surface of the carbon cup heating element of the present invention is provided with a metal foil, which isolates the carbon cup heating element from the aerosol-generating matrix. When the carbon cup heating element burns, the generated combustion waste gas is blocked by the metal foil from entering the aerosol-generating matrix, so that the aerosol generated by heating the aerosol-generating matrix will not be mixed with the waste gas. As such, the waste gas generated from the burning of the carbon cup heating element will not be inhaled into the human body, thus achieving a good harm reduction effect.
  3. 3. The carbon cup heating element of the present invention is sleeved on the aerosol-generating matrix, so that when the entire carbon cup heating element is ignited by means of electromagnetic heating, the heat generated by the combustion of the carbon cup heating element can be evenly guided to the aerosol-generating matrix through the metal foil inside the carbon cup heating element, thereby achieving uniform and quick heating and providing the user with a good smoking experience.
  4. 4. The carbon cup heating element of the present invention is detachably connected to the aerosol-generating matrix of the aerosol generation product, so that it can be adapted to existing aerosol generation products.
  5. 5. When the inner surface of entire bottom wall and the inner surface of the entire side wall of the carbon cup heating element of the present invention are provided with the metal foil and there is no hole in the metal foil, the carbon cup also plays a role in isolating the aerosol-generating matrix from the air, so that the aerosol-generating matrix is heated to release the aerosol in absence of the passage of outside air. Since there is no passage of outside air, it is equivalent to cancelling the oxygen of the three elements of combustion (combustible, oxygen, and a temperature higher than the ignition point), so that the aerosol-generating matrix will not burn even when heated to a very high temperature (for example, above 350°C). This not only avoids various harmful aerosol components and burnt smell generated by combustion, but also makes the released aerosol flavor purer. Furthermore, heating the aerosol-generating matrix to a higher temperature can increase the released aerosol and improve the utilization rate of the aerosol-generating matrix, and can release those flavor components with a release temperature above 350°C that could not be released originally, thereby enriching the flavor. When the hollow section 22 with the air inlet 222 is used, the outside air entering from the air inlet can also cool the aerosol and carry it downstream, thereby promoting the diffusion of the aerosol within the aerosol-generating matrix in the downstream direction.

BRIEF DESCRIPTION OF THE DRAWINGS



[0017] 

FIG. 1 is a schematic structural diagram of an aerosol generation product inserted into a heating start-up device;

FIG. 2 is a schematic structural diagram of an aerosol generation product separated from a heating start-up device;

FIG. 3 is a schematic diagram of an assembled structure of an aerosol generation product when a carbon cup heating element and an aerosol-generating matrix are integrally connected;

FIG. 4 is a schematic cross-sectional structural view of an aerosol generation product when a carbon cup heating element and an aerosol-generating matrix are integrally connected;

FIG. 5 is a schematic structural diagram of a carbon cup heating element separated from an aerosol-generating matrix;

FIG. 6 is a schematic structural diagram of an aerosol generation product in which a carbon cup heating element and an aerosol-generating matrix are detachably connected;

FIG. 7 is a schematic cross-sectional structural diagram of an aerosol generation product in which a carbon cup heating element and an aerosol-generating matrix are detachably connected;


Description of reference signs of the drawings:



[0018] 1-carbon cup heating element, 11-ferromagnetic metal heater, 12-metal foil, 21-aerosol-generating matrix, 22-hollow section, 222-air inlet, 23-cooling section, 24-filter section, 3-wrapping layer, 4-heating start-up device.

DESCRIPTION OF THE EMBODIMENTS



[0019] In order to better understand the purpose, structure and function of the present invention, the present invention will be described in further detail below in conjunction with the accompanying drawings.

[0020] In this application, "upstream" to "downstream" are relative terms. When the aerosol generation product is heated and inhaled, the flowing direction of aerosol in the aerosol generation product is from "upstream" to "downstream".

[0021] The present invention provides a carbon cup heating element, which includes a bottom wall and a side wall. Ferromagnetic metal particles are filled between an outer surface and an inner surface of the carbon cup heating element, and a heat-permeable and air-impermeable metal foil 12 is arranged on the inner surface of the carbon cup heating element.

[0022] The metal foil 12 has no holes and covers the inner surface of the entire side wall and the inner surface of the entire bottom wall of the carbon cup heating element 1, playing a role in isolating gas.

[0023] An aerosol generation product including the carbon cup heating element 1 is provided, the carbon cup heating element 1 is sleeved on the aerosol-generating matrix 21 of the aerosol generation product, and the carbon cup heating element 1 and the aerosol-generating matrix 21 are separated by the metal foil 12; the aerosol-generating matrix 21 can be atomized to form an aerosol.

[0024] The carbon cup heating element 1 is arranged at the upstream of the aerosol-generating matrix 21.

[0025] A hollow section 22, a cooling section 23 and a filter section 24 are connected sequentially downstream of the aerosol-generating matrix 21; the hollow section 22 provides air inlet 222 in communication with the outside.

[0026] Before using the aerosol generation product, the carbon cup heating element 1 is ignited with a heating start-up device 4. The heating start-up device 4 can be an electromagnetic heating device which, by means of electromagnetic heating, heats the ferromagnetic metal particles in the carbon cup heating element, so that the entire carbon cup heating element 1 is ignited and can self-sustain the combustion. After that, the aerosol generation product can be used independently without continuing to use the heating device. Therefore, there is no need to consider whether the power of the heating device is sufficient, and the carbon cup heating element 1 can be easily ignited, not limited by the heating device, and not requiring an open flame.

[0027] The heat generated during burning of the carbon cup heating element 1 can continuously heat the aerosol-generating matrix 21, causing the aerosol-generating matrix 21 to be heated to release aerosol. The waste gas produced by the burning of the carbon cup heating element 1 is isolated by the metal foil 12,which is located between the carbon cup heating element 11 and the aerosol-generating matrix 21, so that the waste gas will not be inhaled by the user, thereby reducing harm to the human body.

[0028] The carbon cup heating element 1 and the aerosol-generating matrix 21 are integrally connected, or the carbon cup heating element 1 and the aerosol-generating matrix 21 are detachably connected to each other.

[0029] The aerosol generation product further includes a wrapping layer 3 wrapping the carbon cup heating element 1. The wrapping layer 3 has a thermochromic material, which is a composite material composed of a chromophoric agent, a color-developing agent, and a solvent, the chromophoric agent is selected from bromocresol green, the color-developing agent is selected from rare earth ions, and the solvent is selected from molten compounds.The thermochromic material serves as a temperature indicator near the carbon cup heating element 1,the thermochromic material in the wrapping layer 3 displays different colors with temperature changes to indicate approximate temperature information to the user.

[0030] When the carbon cup heating element 1 is detachably connected to the aerosol-generating matrix 21, making it compatible with existing aerosol generation products.

[0031] It is understood that the present invention has been described by way of some embodiments. Those skilled in the art know that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, the features and embodiments may be modified to adapt to a particular situation and material without departing from the spirit and scope of the invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present invention are within the scope of protection of the present invention.


Claims

1. A carbon cup heating element, comprising a bottom wall and a side wall, wherein
a ferromagnetic metal heater (11) is filled between an outer surface and an inner surface of the carbon cup heating element (1), a metal foil (12) is arranged on the inner surface of the carbon cup heating element (1).
 
2. The carbon cup heating element according to claim 1, characterized in that, the ferromagnetic metal heater (11) comprises ferromagnetic metal particles or a ferromagnetic metal layer.
 
3. The carbon cup heating element according to claim 2, characterized in that, the metal foil (12) has no holes and covers the inner surface of the entire side wall and/or the inner surface of the entire bottom wall of the carbon cup heating element (1).
 
4. An aerosol generation product comprising the carbon cup heating element according to any one of claims 1 to 3, characterized in that, the carbon cup heating element (1) is sleeved on an aerosol-generating matrix (21) of the aerosol generation product.
 
5. The aerosol generation product according to claim 4, characterized in that, a hollow section (22) and/or a cooling section (23) and/or a filter section (24) are arranged at the downstream of the aerosol-generating matrix (21).
 
6. The aerosol generation product according to claim 5, characterized in that, the hollow section (22) provides anair inlet (222) in communication with the outside environment.
 
7. The aerosol generation product according to claim 4, characterized in that, the carbon cup heating element (1) and the aerosol-generating matrix (21) are integrally connected.
 
8. The aerosol generation product according to claim 4, characterized in that, the carbon cup heating element (1) and the aerosol-generating matrix (21) are detachably connected to each other.
 
9. The aerosol generation product according to claim 4, characterized in that, the aerosol generation product further comprises a wrapping layer (3) wrapping the carbon cup heating element (1), the wrapping layer (3) has a thermochromic material, the thermochromic material is a composite material composed of a chromophoric agent, a color-developing agent, and a solvent, the chromophoric agent is selected from bromocresol green, fluorine compounds, triarylmethane compounds or schiff base compounds, the color developing agent is selected from rare earth ions, phenolic hydroxyl groups compounds and their derivatives or carboxyl groups compounds and their derivatives, the solvent is selected from molten compounds, alcohol compounds, higher aliphatic ketone compounds, ester compounds, ether compounds, amide compounds or carboxylic acids compounds.
 




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