Infrared heating device and system for generating aerosols

Abstract

An infrared heating device and system for generating an aerosol, comprising an apparatus housing (1), an infrared heating assembly (2) disposed within a receiving cavity of the apparatus housing (1), the infrared heating assembly (2) comprising an infrared heating barrel (3) having an open top and a closed bottom, the inner cavity of the infrared heating barrel (3) being formed as a heating cavity (4) for inserting an aerosol generating assembly (13), the infrared heating barrel (3) having a two-layered barrel structure, the inner barrel wall and the outer barrel wall being made of a material having a thickness of about 100 μm. The space between the two layers of the cylinder wall is formed as a vacuum intermediate layer (5), an infrared heating coating (6) is applied to the outer surface of the inner cylinder wall of the infrared heating cylinder (3), both ends of the infrared heating coating (6) are connected to conductive electrodes (7), the two conductive electrodes (7) extend from the outer cylinder wall of the infrared heating cylinder (3) and are connected to the positive and negative poles of a power source (8), and the current-carrying infrared heating coating (6) generates infrared rays to heat the aerosol generating assembly (13) in the heating cavity (4) in the circumferential direction. This improves the insulation performance, simplifies the cleaning work, and increases the infrared heating efficiency.

Description

Technical Field

[0001] The present invention relates to an infrared heating smoking device, and particularly to an infrared heating device and a system for generating aerosol.

Background Art

[0002] In an electric heating non-combustible device, since a pin-type or sheet-type resistance heating element is always inserted into an aerosol generation assembly for heating, there are problems of leakage of the separation material and insufficient heating after smoking ends. To optimize the leakage of the separation material The problem and improve the uniformity and permeability of heating, Patent CN2021109014160 proposed a high-efficiency infrared circumferential heating element and its manufacturing method. By infrared heating, circumferential heating of the aerosol generation assembly can be realized, and energy transfer can be better performed by applying the infrared permeability. However, this infrared heating device adopts a tubular structure that penetrates both ends, and droplets formed after the smoke condenses tend to flow down through the wall of the tube and accumulate at the bottom of the accommodation cavity of the device housing, making cleaning inconvenient, and the surface temperature of the device housing is too high, resulting in a very poor user experience for smokers.

Summary of the Invention

Problems to be Solved by the Invention

[0003] In order to overcome the defects of the prior art, the present invention provides an infrared heating device and a system for generating aerosol, aiming to improve the heat insulation performance of the heating device, simplify the cleaning operation, and enhance the infrared heating efficiency.

Means for Solving the Problems

[0004] The present invention is implemented by the following technical solutions.

[0005] An infrared heating device for generating aerosol includes a device housing, and the device housing InsideA housing cavity is installed, and an infrared heating assembly is placed inside the housing cavity. The infrared heating assembly comprises an infrared heating cylinder that is open at the top and closed at the bottom. The internal cavity of the infrared heating cylinder is formed as a heating cavity for inserting an aerosol generating assembly. The infrared heating cylinder has a two-layer cylindrical structure formed by two layers of cylindrical walls, an inner layer and an outer layer. The space between the two layers of cylindrical walls is formed as a vacuum intermediate layer. An infrared heating coating is applied to the outer surface of the inner layer of the infrared heating cylinder. Both ends of the infrared heating coating are connected to conductive electrodes. The two conductive electrodes extend from the outer layer of the infrared heating cylinder and are connected to the positive and negative electrodes of a power supply, respectively. The energized infrared heating coating generates infrared rays to heat the aerosol generating assembly inside the heating cavity in the circumferential direction.

[0006] In a preferred embodiment of the above apparatus, a plurality of recessed, strip-shaped grooves are provided along the circumferential direction on the inner wall of the heating cavity of the infrared heating cylinder, the extending direction of each strip-shaped groove is parallel to the axial direction of the infrared heating cylinder, and the internal space of the strip-shaped groove is formed as a first gas flow passage for releasing aerosols.

[0007] In a preferred embodiment of the above apparatus, a plurality of strip-shaped projection ribs are provided along the circumferential direction, projecting from the inner wall of the heating cavity of the infrared heating cylinder. The direction of extension of each strip-shaped projection rib is parallel to the axial direction of the infrared heating cylinder, and the gaps between adjacent strip-shaped projection ribs are formed as a second gas flow passage for aerosol outflow.

[0008] A preferred embodiment of the above apparatus is provided with a plurality of support bosses projecting upward from the bottom wall surface of the heating cavity of the infrared heating cylinder, the upper surfaces of the plurality of support bosses being used to support the aerosol generating assembly, and each support boss being positioned offset from the first gas flow passage or the second gas flow passage.

[0009] A preferred form of the above-described apparatus is a glass tube for the infrared heating cylinder.

[0010] In a preferred configuration of the above-described device, the power supply is located in the device housing.

[0011] The present invention further provides a system for generating an aerosol, comprising a heating device and an aerosol generating assembly, wherein the heating device is the infrared heating device described above, and the aerosol generating assembly is located in the heating cavity of the infrared heating device. [Effects of the Invention]

[0012] The present invention offers the following advantages compared to the conventional technology.

[0013] In the infrared heating device and system for generating aerosols provided by the present invention, the infrared heating assembly employs a two-layer cylindrical structure, and the vacuum intermediate layer between the two cylindrical walls, the inner and outer layers, effectively insulates and prevents heat from escaping to the outside, thereby increasing the infrared heating efficiency and preventing the device housing from becoming excessively hot, improving the user experience for smokers. Furthermore, since the lower part of the infrared heating cylinder of the infrared heating assembly is closed, the droplets formed by the condensation of smoke concentrate directly inside the infrared heating cylinder and do not accumulate in the housing cavity of the device housing, making cleaning convenient. [Brief explanation of the drawing]

[0014] [Figure 1] This is a cross-sectional view of the system according to the present invention. [Figure 2] This is a cross-sectional view showing the infrared heating device according to the present invention combined with an aerosol generating assembly. [Figure 3] This is a top view of the first type of installation configuration of the gas flow passage according to the present invention. [Figure 4] This is a top view of a second type of installation configuration of the gas flow passage according to the present invention. [Figure 5] This is a perspective view of the infrared heating cylinder according to the present invention. [Figure 6] This is a top view of the infrared heating cylinder according to the present invention. [Modes for carrying out the invention]

[0015] The following describes in detail embodiments of the present invention. These embodiments are implemented based on the technical solutions of the present invention, and detailed embodiments and specific operating procedures are shown. However, the scope of protection of the present invention is not limited to the following embodiments.

[0016] Referring to Figures 1 to 6, this embodiment discloses an infrared heating device for generating aerosols, comprising a device housing 1, wherein a housing cavity is installed in the device housing 1, and an infrared heating assembly 2 is placed inside the housing cavity, the infrared heating assembly 2 comprising an infrared heating cylinder 3 which is open at the top and closed at the bottom, and the infrared heating cylinder 3 is a glass cylinder. The internal cavity of the infrared heating cylinder 3 is formed as a heating cavity 4 for inserting an aerosol generating assembly 13, the infrared heating cylinder 3 is a two-layer cylinder structure formed by two layers of cylinder walls, an inner layer and an outer layer, the space between the two layers of cylinder walls formed as a vacuum intermediate layer 5, the vacuum intermediate layer 5 plays a role in heat insulation and heat retention. An infrared heating coating 6 is applied to the outer surface of the inner wall of the infrared heating cylinder 3. Both ends of the infrared heating coating 6 are connected to conductive electrodes 7, and the two conductive electrodes 7 extend from a sealing opening in the outer wall of the infrared heating cylinder 3 and are connected to the positive and negative electrodes of a power supply 8, respectively. The power supply 8 is located in the device housing 1. When energized, the infrared heating coating 6 generates infrared rays to heat the aerosol generating assembly 13 in the heating cavity 4 in the circumferential direction.

[0017] Several gas flow passages are provided along the circumferential direction on the inner wall of the heating cavity 4 of the infrared heating cylinder 3 to facilitate the flow of aerosols, and one of the following two installation methods can be adopted for the gas flow passages.

[0018] The installation method for Type 1 is as follows: A plurality of strip-shaped concave grooves 9 recessed in the inner wall of the heating cavity 4 of the infrared heating cylinder 3 are provided along the circumferential direction. In this embodiment, four strip-shaped concave grooves 9 are uniformly distributed along the circumferential direction, and the cross-sectional shape of the strip-shaped concave groove 9 is arc-shaped. The extending direction of each strip-shaped concave groove 9 is parallel to the axial direction of the infrared heating cylinder 3, and the internal space of the strip-shaped concave groove 9 is formed as a first gas flow passage for allowing the aerosol to flow out.

[0019] The second installation method is as follows. A plurality of strip-shaped protruding ribs 10 protruding from the inner wall of the heating cavity 4 of the infrared heating cylinder 3 are provided along the circumferential direction. In this embodiment, four strip-shaped protruding ribs 10 are uniformly distributed along the circumferential direction, and the cross-sectional shape of the strip-shaped protruding rib 10 is arc-shaped. The extending direction of each strip-shaped protruding rib 10 is parallel to the axial direction of the infrared heating cylinder 3, and the gap between adjacent strip-shaped protruding ribs 10 is formed as a second gas flow passage 11 for allowing the aerosol to flow out.

[0020] Since the above two installation methods have different cross-sectional areas of the entire gas flow passage, there are differences in the air convection effect. Specifically, one of them can be selected and used as needed.

[0021] A plurality of support bosses 12 protruding upward are provided on the bottom wall surface of the heating cavity 4 of the infrared heating cylinder 3. The upper surfaces of the plurality of support bosses 12 are used to support the aerosol generating assembly 13, and each support boss 12 is arranged offset from the first gas flow passage or the second gas flow passage 11. The plurality of support bosses 12 are provided to lift the bottom of the aerosol generating assembly 13, thereby forming a gap between the bottom surface of the aerosol generating assembly 13 and the bottom wall surface of the heating cavity 4, facilitating the exchange of airflows.

[0022] This embodiment further provides a system for generating an aerosol, comprising a heating device and an aerosol generating assembly 13, wherein the heating device employs the infrared heating device described above, the aerosol generating assembly 13 is placed in the heating cavity 4 of the infrared heating device, and the energized infrared heating coating 6 generates infrared rays to heat the aerosol generating assembly 13 in the heating cavity 4 in the circumferential direction.

[0023] The aerosol generating assembly 13 contains a substance that can be atomized into an aerosol composition. including When the aerosol generating assembly 13 is heated by an infrared heating element, an inhalable aerosol mixture is released.

[0024] This embodiment optimizes the infrared heating device, improving its heat insulation performance, increasing infrared heating efficiency, and simplifying the cleaning process.

[0025] The foregoing are merely preferred embodiments of the present invention and are not intended to limit it. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention. [Explanation of Symbols]

[0026] 1. Device housing 2. Infrared heating assembly 3. Infrared heating cylinder 4. Heating Cavity 5 Vacuum intermediate layer 6. Infrared heating coating 7 Conductive electrode 8 Power 9. Strip-shaped grooves 10 Strip-shaped projection ribs 11. Second gas flow passage 12 Supporting Bosses 13. Aerosol generating assembly.

Claims

1. A system for generating an aerosol, comprising an infrared heating device and an aerosol generating assembly, wherein the infrared heating device comprises a device housing, a housing cavity is installed within the device housing, and an infrared heating assembly is disposed within the housing cavity, the infrared heating assembly comprising an infrared heating cylinder with an open top and a closed bottom, the internal cavity of the infrared heating cylinder formed as a heating cavity for inserting the aerosol generating assembly, the infrared heating cylinder having a two-layer cylindrical structure formed by two layers of cylindrical walls, an inner layer and an outer layer, the space between the two layers of cylindrical walls formed as a vacuum intermediate layer, an infrared heating coating applied to the outer surface of the inner layer of the infrared heating cylinder, both ends of the infrared heating coating connected to conductive electrodes, the conductive electrodes extending from the outer layer of the infrared heating cylinder and connected to the positive and negative electrodes of a power supply, respectively, the energized infrared heating coating generates infrared rays to heat the aerosol generating assembly in the heating cavity in the circumferential direction. Multiple rectangular grooves are provided along the circumferential direction on the inner wall of the heating cavity of the infrared heating cylinder, with the extension direction of each rectangular groove being parallel to the axial direction of the infrared heating cylinder, and the internal space of the rectangular grooves is formed as a first gas flow passage for aerosol outflow, or, Multiple strip-shaped projection ribs are provided along the circumferential direction, protruding from the inner wall of the heating cavity of the infrared heating cylinder. The direction of extension of each strip-shaped projection rib is parallel to the axial direction of the infrared heating cylinder, and the gaps between adjacent strip-shaped projection ribs are formed as a second gas flow passage for aerosol outflow. Multiple support bosses are provided on the bottom wall surface of the heating cavity of the infrared heating cylinder, and the upper surfaces of the multiple support bosses are used to support the aerosol generating assembly. Each support boss is positioned offset from the first gas flow passage or the second gas flow passage. A system for generating aerosols, characterized in that the aerosol generating assembly is placed in the heating cavity of the infrared heating device and is in close proximity to but not in close contact with the inner wall of the infrared heating cylinder.

2. The system for generating an aerosol according to claim 1, characterized in that the infrared heating cylinder is a glass cylinder.

3. The system for generating an aerosol according to claim 1, characterized in that the power supply is located in the device housing.

Images