A breathable heating assembly and a heating non-combustion device

Abstract

The present application relates to the field of heating non-combustion equipment, and provides a gas-permeable heating assembly and a heating non-combustion device, the gas-permeable heating assembly comprising a support pipe, a heating structure arranged in the support pipe for heating, and a gas-permeable limiting piece, one end of the support pipe being provided with an opening, and the outer periphery of the gas-permeable limiting piece abutting in the opening end of the support pipe to fix the heating structure while allowing air to enter, a plurality of air holes being provided on the pipe wall of the support pipe at intervals to form a plurality of gas-permeable channels; the gas-permeable channel part of the support pipe being adapted to be inserted into a herbal product, the other end of the herbal product being adapted for a user to smoke; the gas-permeable heating assembly being capable of being heated by combined heating of hot air convection and surface heat conduction of the support pipe, so that the heating of the herbal product is more balanced, the taste of the user is improved, and the heating efficiency is high and the energy consumption is low.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of heating-not-burning devices, in particular to a gas-permeable heating assembly and a heating-not-burning device. BACKGROUND

[0002] The heating-not-burning device is to heat the herbal product by using the heating structure to generate heat, so as to release the flavoring substances of the herbal product for the user to smoke, wherein the herbal product can be heating-not-burning tobacco or other types of aerosol generating products, such as tobacco leaves, tobacco shreds, etc.

[0003] The heating structure on the market is mostly heating needles or heating sheets, etc., which are inserted into the middle of the columnar herbal product to heat the herbal product layer by layer from the middle to the periphery, so as to gradually release the flavoring substances of the herbal product, but in order to make the herbal product at the edge reach the temperature at which the flavoring substances can be released, the heating structure gradually increases the surface temperature, so that the herbal product near the heating structure is over-baked, releasing bad substances such as paste smell, affecting the user's taste. SUMMARY

[0004] The problem solved by the present application is how to more evenly heat the herbal product.

[0005] The technical document provided by the present application is a gas-permeable heating assembly, which comprises a support pipe, a heating structure arranged in the support pipe for heating, and a gas-permeable limiting piece, one end of the support pipe is provided with an opening, the outer periphery of the gas-permeable limiting piece abuts in the opening end of the support pipe to fix the heating structure while allowing air to enter, a plurality of air holes are arranged on the pipe wall of the support pipe in intervals to form a plurality of gas-permeable channels; the gas-permeable channel part of the support pipe is adapted to be inserted into the herbal product, and the other end of the herbal product is adapted for the user to smoke.

[0006] Optionally, the pipe body part of the support pipe is a columnar structure, and the end of the support pipe away from the opening end is a convex conical structure.

[0007] Optionally, the pipe wall of the support pipe is provided with a single-layer pipe wall, and each air hole is arranged on the circumferential outer wall of the support pipe in intervals to form a plurality of gas-permeable channels, and the hole diameter and spacing of each air hole are adjusted to adjust the gas permeability of each gas-permeable channel.

[0008] Optionally, the tube wall of the support tube is provided as a double-layer sandwich of an inner tube wall and an outer tube wall, the inner tube wall head of the conical structure is provided with an air hole to communicate the air inside the support tube with the air in the sandwich, and the outer tube wall of the cylindrical structure near the open end is provided with a plurality of air holes to communicate the air inside the herb product with the air in the sandwich.

[0009] Optionally, the heating structure comprises a plurality of the heating tubes, each of the heating tubes is arranged along the axial direction of the support tube, each of the heating tubes is electrically connected in series or in parallel, and the positive and negative electrodes of the heating structure are adapted to be electrically connected to the control unit through wires, so that each of the heating tubes heats the air inside the support tube.

[0010] Optionally, each of the heating tubes is a hollow cylindrical structure to form a heating ventilation channel inside each of the heating tubes, and each of the heating tubes is arranged to form a heating ventilation channel between each of the heating tubes to quickly heat the air inside the support tube.

[0011] Optionally, the heating tube is at least one long heating tube and a plurality of short heating tubes, the long heating tube is arranged at the middle position inside the support tube, so that one end of the long heating tube is close to the air hole of the head of the conical structure, and each of the short heating tubes is arranged in a ring shape around the long heating tube.

[0012] Optionally, the heating structure is a heating wire structure or a honeycomb heating body, wherein the honeycomb heating body is made of conductive ceramic or carbon material (such as graphite), and the heating wire structure is a fancy heating wire or a spiral coil-shaped heating wire made of a heating wire.

[0013] With respect to the beneficial effects of the prior art, the support pipe in the application is an open-ended accommodating cavity, the heating structure is accommodated in the support pipe, hot air is formed by heating the air in the support pipe through the heating structure, the outer periphery of the air-permeable limiting piece abuts in the open end of the support pipe, the air-permeable limiting piece can fix the heating structure, and at the same time, external air can enter the support pipe through the air-permeable limiting piece, a plurality of air holes are arranged on the pipe wall of the support pipe in a spaced-apart manner to form a plurality of air-permeable channels, and the plurality of air-permeable channels communicate the inside of the support pipe with the outside space, so that the hot air in the inside of the support pipe can be discharged. The air-permeable channel part of the support pipe is adapted to be inserted into the herbal product, and the other end of the herbal product is adapted to be smoked by the user. When the user smokes, the pressure in the herbal product decreases, at this time, the hot air in the inside of the support pipe is discharged to the herbal product through each air-permeable channel, moves in the inside of the herbal product, and thus the herbal product is heated and roasted to generate aroma substances for the user to smoke. Through the combined heating mode of convection of hot air and conduction of the surface of the support pipe, the heating of the herbal product is more balanced, thereby improving the taste of the user, and the heating efficiency is high and the energy consumption is low. Meanwhile, the structure of the air-permeable heating assembly is simple, and the process cost is low.

[0014] The application further provides a heating non-combustion device, comprising the air-permeable heating assembly, the heating body fixing piece, the tubular shell, the battery unit and the control unit as described above, one end of the tubular shell and the heating body fixing piece are sequentially sleeved on the open end of the air-permeable heating assembly to fix the air-permeable heating assembly while accommodating the air-permeable heating assembly in the tubular shell, the air-permeable heating assembly is electrically connected with the control unit through the lead wire, and the control unit is electrically connected with the battery unit to supply power.

[0015] Optionally, the elastic air-tight piece is arranged between the tubular shell and the herbal product to limit the gas flow between the herbal product and the tubular shell.

[0016] Therefore, since the heating non-combustion device comprises the air-permeable heating assembly, the heating non-combustion device at least has the beneficial effects of the air-permeable heating assembly, which will not be repeated here. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a cross-sectional view of the air-permeable heating assembly in the embodiment of the application;

[0018] Figure 2 is one of cross-sectional views of the support pipe in the embodiment of the application;

[0019] Figure 3 is the second cross-sectional view of the support pipe in the embodiment of the application;

[0020] Figure 4Fig. 1 is a cross-sectional view of a heating structure according to an embodiment of the present application;

[0021] Figure 5 Fig. 2 is another cross-sectional view of a heating structure according to an embodiment of the present application;

[0022] Figure 6 Fig. 3 is a cross-sectional view of a heating non-combustion device according to an embodiment of the present application;

[0023] Figure 7 Fig. 4 is a structure view of a heating non-combustion device according to an embodiment of the present application.

[0024] The reference signs in the drawings are as follows: 1 - support pipe; 2 - heating structure; 3 - air permeable limiting member; 4 - herbal product; 5 - wire; 6 - tubular housing; 7 - heating body fixing member; 8 - elastic air-tight member; 11 - air hole; 21 - long heating pipe; 22 - short heating pipe. DETAILED DESCRIPTION

[0025] In order to make the above object, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the drawings.

[0026] It should be noted that the terms "first", "second", and the like in the description of the specification and claims of the present application and the above drawings are used to distinguish similar objects, and do not necessarily have to describe a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0027] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "set", "mount", "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected; it can be directly connected, or indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0028] In the description of the present application, the description of the terms "embodiment", "one embodiment" and "one embodiment" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or embodiment are included in at least one embodiment or embodiment of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or embodiment. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or embodiments in a suitable manner.

[0029] The present application will be described in detail below with reference to the drawings.

[0030] To solve the above technical problems, in combination with Figure 1 The application provides a ventilation heating assembly, which comprises a supporting pipe 1, a heating structure 2 arranged in the supporting pipe 1 for heating and a ventilation limiting piece 3, one end of the supporting pipe 1 is provided with an opening, the outer periphery of the ventilation limiting piece 3 abuts against the opening end of the supporting pipe 1, so that the heating structure 2 is fixed and air is ventilated at the same time, a plurality of air holes 11 are arranged on the pipe wall of the supporting pipe 1 in a spaced penetrating mode, so as to form a plurality of ventilation channels, the ventilation channel part of the supporting pipe 1 is suitable for being inserted into a herbal product 4, and the other end of the herbal product 4 is suitable for being smoked by a user.

[0031] It should be noted that the supporting pipe 1 is a one-end-open accommodating cavity, the heating structure 2 is accommodated in the supporting pipe 1, hot air is formed by heating the air in the supporting pipe 1 through the heating of the heating structure 2, the outer periphery of the ventilation limiting piece 3 abuts against the opening end of the supporting pipe 1, the ventilation limiting piece 3 can fix the heating structure 2, and at the same time, external air can enter the supporting pipe 1 through the ventilation limiting piece 3, a plurality of air holes 11 are arranged on the pipe wall of the supporting pipe 1 in a spaced penetrating mode, so as to form a plurality of ventilation channels, the plurality of ventilation channels are communicated with the inside and outside of the supporting pipe 1, so that the hot air in the supporting pipe 1 can be discharged. The ventilation channel part of the supporting pipe 1 is suitable for being inserted into the herbal product 4, and the other end of the herbal product 4 is suitable for being smoked by a user, in the specific implementation, the herbal product 4 can be heated non-combustible tobacco, or other types of aerosol generating products, such as tobacco leaves, tobacco shreds and the like, which can be determined according to the actual use demand of the user, and the embodiment does not make specific limitation on this. It should be noted that the so-called heated non-combustible tobacco mainly refers to an aerosol generating product which is made of materials such as tobacco shreds, tobacco particles, plant fragments, tobacco essence, propylene glycol and the like, and the outer shape of the aerosol generating product can be a columnar shape, such as a cylindrical shape, so it is also called a heated non-combustible cigarette, under the condition of low-temperature heating, the nicotine and other aromatic substances and volatile substances in the inside of the aerosol generating product can be volatilized without generating solid particles, only generating vapor after being atomized. It can be understood that the low temperature here refers to a temperature at which the herbal product 4 can generate aerosol without combustion, and the temperature is generally 200-400 DEG C. When the user smokes, the pressure in the herbal product 4 becomes smaller, at this time, the hot air in the inside of the supporting pipe 1 is discharged to the herbal product 4 through the ventilation channels, so as to heat the herbal product to generate flavoring substances for the user to smoke, through the combined heating mode of the convection of the hot air and the heat conduction of the surface of the supporting pipe 1, the hot air moves in the inside of the herbal product 4, so that the heating of the herbal product 4 is more balanced, thereby improving the taste of the user, and the heating efficiency is high and the energy consumption is low, meanwhile, the structure of the ventilation heating assembly is simple and the process cost is low.

[0032] In one embodiment of the present application, in combination Figure 1 As shown, the tubular part of the support pipe 1 is a columnar structure, and the end of the support pipe 1 away from the open end is a convex conical structure.

[0033] It should be noted that the tubular part of the support pipe 1 is a columnar structure, which includes a cylinder and a prism, and the side of the support pipe 1 away from the open end is a convex conical structure, which includes a cone and a pyramid. The design of the columnar structure and the conical structure being integrally formed can provide more accommodation space for the heat generating structure 2, and the inclined peripheral surface inside the conical structure can facilitate the convection of hot air heated by the heat generating structure 2, so that the hot air is more uniform in temperature, thereby making the heating of the herbal product 4 more balanced.

[0034] In one embodiment of the present application, in combination Figure 3 As shown, the wall of the support pipe 1 is provided as a single-layer wall, and each air hole 11 is arranged in a spaced-apart manner through the circumferential outer wall of the support pipe 1 to form a plurality of air permeable channels. By adjusting the hole diameter and spacing of each air hole 11, the air permeability of each air permeable channel can be adjusted.

[0035] It should be noted that the wall of the support pipe 1 is provided as a single-layer wall, and each air hole 11 is arranged in a spaced-apart manner through the circumferential outer wall of the support pipe 1 to form a plurality of air permeable channels. By adjusting the hole diameter and spacing of each air hole 11, the air permeability of each air permeable channel can be adjusted.

[0036] In one embodiment of the present application, in combination Figure 4 As shown, the wall of the support pipe 1 is provided as a single-layer wall, and each air hole 11 is arranged in a spaced-apart manner through the circumferential outer wall of the support pipe 1 to form a plurality of air permeable channels. By adjusting the hole diameter and spacing of each air hole 11, the air permeability of each air permeable channel can be adjusted.

[0037] It should be noted that the pipe wall of the support pipe 1 is provided with a double-layer sandwich structure of an inner pipe wall and an outer pipe wall, wherein the side close to the heating structure 2 is the inner pipe wall, and the side away from the heating structure 2 is the outer pipe wall, and a gap is left between the inner pipe wall and the outer pipe wall to facilitate the flow of hot air. The inner pipe wall head of the conical structure is provided with a plurality of air holes 11, so that the hot air in the support pipe 1 enters the sandwich layer between the inner pipe wall and the outer pipe wall. The circumferential outer wall of the columnar structure close to the opening end is provided with a plurality of air holes 11, so as to communicate the hot air between the inner pipe wall and the outer pipe wall, and the air in the sandwich layer, thereby forming a plurality of air permeation channels. Each air permeation channel has a certain length to balance the temperature of the hot air and the temperature field of the surface of the support pipe 1, which is beneficial to the heating of the herbal product 4.

[0038] In an embodiment of the present application, as shown in Figure 1 、 Figure 5 and Figure 6 , the heating structure 2 includes a plurality of heating pipes, each of which is arranged along the axial direction of the support pipe 1. Each of the heating pipes is connected in series or parallel, and the positive and negative electrodes of the heating structure 2 are adapted to be electrically connected to the control unit through the wire 5 to drive each of the heating pipes to heat the air in the support pipe 1.

[0039] It should be noted that the heating structure 2 includes a plurality of heating pipes, each of which is arranged along the axial direction of the support pipe 1. Each of the heating pipes can be connected by welding, and each of the heating pipes is connected in series or parallel. The positive and negative electrodes of the heating structure 2 are adapted to be electrically connected to the control power supply through the wire 5, the wire 5 penetrates the air-permeable limiting piece 3, and the control unit supplies power to the heating structure 2 while controlling heating, so as to drive the heating structure 2 to heat. Each of the heating pipes can be made of conductive ceramic or heating wire material. The heating structure 2 has small mass, low energy consumption and fast heating speed.

[0040] In an embodiment of the present application, as shown in Figure 1 、 Figure 5 and Figure 6 , each of the heating pipes is a hollow columnar structure to form a heating and ventilation channel in each of the heating pipes. Each of the heating pipes is arranged to form a heating and ventilation channel between each of the heating pipes to quickly heat the air in the support pipe 1.

[0041] It should be noted that each of the heating pipe fittings is a hollow columnar structure to form a heating ventilation channel inside each of the heating pipe fittings, and each of the heating pipe fittings is arranged at intervals to form a heating ventilation channel between each of the heating pipe fittings, so that when a user smokes the herb product 4, part of the air entering from the air permeable limiting piece 3 is heated through the heating ventilation channel inside each of the heating pipe fittings, and the other part is heated through the heating ventilation channel between each of the heating pipe fittings, thereby increasing the contact area of the air with each of the heating pipe fittings, and further improving the heating efficiency.

[0042] In an embodiment of the present application, in combination with Figure 5 and Figure 6 It is shown that the heating pipe fittings are at least one long heating pipe 21 and a plurality of short heating pipes 22, the long heating pipe 21 is arranged at the middle position inside the support pipe fitting 1, so that one end of the long heating pipe 21 is close to the air hole 11 of the conical structure head, and each of the short heating pipes 22 is arranged at intervals around the long heating pipe 21.

[0043] It should be noted that the arrangement of the heating pipe fittings has at least the following two embodiments, in combination with Figure 5 It is shown that the first embodiment is that the heating pipe fittings include one long heating pipe 21 and a plurality of short heating pipes 22, the long heating pipe 21 is arranged at the middle position inside the support pipe fitting 1, so that the air outlet end of the long heating pipe 21 is close to the conical structure, and the diameter of the long heating pipe 21 can be larger than the diameter of each of the short heating pipes 22, at this time, for the hot air discharged from the heating ventilation channel inside the long heating pipe 21, when the air hole 11 is arranged on the conical structure, the hot air is directly discharged through the air hole 11 on the conical structure, and when the air hole 11 is not arranged on the conical structure, the hot air is directly guided to the air hole 11 on the pipe body through the peripheral surface inside the conical structure, by arranging the long heating pipe 21, the distance between the hot air and the upper part of the conical structure is shortened, thereby improving the air permeability.

[0044] Different from the above first embodiment, in combination with Figure 6As shown, the plurality of long heating pipes 21 are arranged at the middle position inside the support pipe 1, and the air-permeable end of each long heating pipe 21 is close to the head of the conical structure, so that the hot air passing through the heating air-permeable channel inside each long heating pipe 21 and the hot air discharged from the heating air-permeable channel between each long heating pipe 21 can be directly discharged through the air hole 11 on the upper part of the conical structure when the air hole 11 is arranged on the conical structure, or directly flow to the air hole 11 on the pipe body through the circumferential surface inside the conical structure when the air hole 11 is not arranged on the conical structure. In addition, the plurality of long heating pipes 21 can also shorten the distance between the hot gas and the upper part of the conical structure, thereby improving the air permeability.

[0045] In an embodiment of the present application, the heating structure 2 is a heating wire structure or a honeycomb heating body, wherein the honeycomb heating body is made of conductive ceramic or carbon material (such as graphite), and the heating wire structure is a fancy heating wire or a spiral coil-shaped heating wire made of heating wire.

[0046] It should be noted that the heating structure 2 is a heating wire structure or a honeycomb heating body, the honeycomb heating body is made of conductive ceramic or carbon material (such as graphite), and the heating wire structure is a fancy heating wire or a spiral coil-shaped heating wire made of heating wire, so as to improve the heating efficiency of the heating wire. As long as the technical solutions that can heat the air inside the support pipe 1 and are suitable for heating the herbal product 4 are applicable to the present technical solution, they are also applicable to the present technical solution, and will not be limited here.

[0047] The embodiment of the present application also provides a heating non-combustion device, which combines Figure 7 As shown, the heating non-combustion device comprises the air-permeable heating assembly, the heating body fixing member 7, the tubular shell 6, the battery unit and the control unit, one end of the tubular shell 6 and the heating body fixing member 7 are sequentially arranged on the open end of the air-permeable heating assembly, so as to fix the air-permeable heating assembly and accommodate the air-permeable heating assembly in the tubular shell 6, the air-permeable heating assembly is electrically connected with the control unit through a wire, and the control unit is electrically connected with the battery unit for power supply.

[0048] It should be noted that the tubular shell 6 is a cavity provided with open ends, one end of the tubular shell 6 is steppedly contracted, this end is sleeved on the open end of the air-permeable heating assembly, can fix the air-permeable heating assembly, prevent air from flowing into the contact surface of the air-permeable heating assembly and the end of the tubular shell 6, and accommodate the air-permeable heating assembly in the tubular shell 6, the air-permeable heating assembly is electrically connected with the control unit through a wire, the control unit is electrically connected with the battery unit for power supply, the control unit can control the heating of the air-permeable heating assembly, wherein the control unit can be a control circuit board.

[0049] In one embodiment of the present application, in combination with Figure 7 As shown, it also includes an elastic air-tight member 8, which is arranged between the tubular shell 6 and the herbal product 4 to limit the gas flow between the herbal product 4 and the tubular shell 6.

[0050] It should be noted that the elastic air-tight member 8 is arranged between the tubular shell 6 and the herbal product 4, wherein the elastic air-tight member 8 can be arranged at the entrance of the insertion of the herbal product 4 into the tubular shell 6, at this time, the suction air flow can only enter from the air-permeable limiting member 3, thereby ensuring the air inlet flow, the elastic air-tight member 8 can also be arranged at other positions of the gap between the tubular shell 6 and the herbal product 4, as long as it can seal the gap between the herbal product 4 and the tubular shell 6, it is applicable to the technical solution, and is not limited here, the elastic air-tight member 8 can be made of silica gel, as long as the material that can be made into the elastic air-tight member 8 for sealing the gap between the herbal product 4 and the tubular shell 6 is applicable to the technical solution, and is not limited here.

[0051] It should be noted that the above technical features continue to combine to form various embodiments not listed above, which are considered to be within the scope of the present application; and for those skilled in the art, the above description can be improved or changed, and all these improvements and changes shall belong to the protection scope of the appended claims of the present application.

Claims

1. A gas-permeable heat-generating assembly, characterized in that The support pipe is provided with an open end, and a gas-permeable limiting member is arranged in the open end of the support pipe to fix the heating structure and allow air to enter. A plurality of air holes are arranged in the wall of the support pipe to form a plurality of air-permeable channels. The air-permeable channel part of the support pipe is adapted to be inserted into the herbal product, and the other end of the herbal product is adapted to be smoked by a user. The pipe body part of the support pipe is in a columnar structure, and the end of the support pipe away from the open end is in a convex conical structure. The wall of the support pipe is provided with an inner wall and an outer wall in a double-layer sandwich structure. The inner wall of the head of the conical structure is provided with an air hole to communicate the inside of the support pipe with the air in the sandwich. The circumferential outer wall of the lower part of the columnar structure close to the open end is provided with a plurality of air holes to communicate the inside of the herbal product with the air in the sandwich. The columnar structure includes a cylinder and a prism.

2. The vented heat generating assembly of claim 1, wherein, The heating structure includes a plurality of heating pipes. Each of the heating pipes is arranged in the axial direction of the support pipe. Each of the heating pipes is electrically connected in series or in parallel. The positive and negative electrodes of the heating structure are adapted to be electrically connected to the control unit through wires to drive each of the heating pipes to heat the air in the support pipe.

3. The vented heat generating assembly of claim 2, wherein, Each of the heating pipes is in a hollow columnar structure to form a heating and ventilation channel in each of the heating pipes. Each of the heating pipes is arranged in a spaced manner to form a heating and ventilation channel between each of the heating pipes to quickly heat the air in the support pipe.

4. The vented heat generating assembly of claim 3, wherein, The heating pipes include at least one long heating pipe and a plurality of short heating pipes. The long heating pipe is arranged at an intermediate position inside the support pipe so that one end of the long heating pipe is close to the air hole of the head of the conical structure. Each of the short heating pipes is arranged in a ring shape around the long heating pipe.

5. The vented heat generating assembly of claim 1, wherein, The heating structure is a heating wire structure or a honeycomb heating body. The honeycomb heating body is made of conductive ceramic or carbon material. The heating wire structure is a fancy heating wire or a spiral coil-shaped heating wire made of a heating wire.

6. A heat-not-burn device, characterized in that The gas-permeable heating assembly, a heating body fixing member, a tubular shell, a battery unit, and a control unit are provided. One end of the tubular shell and the heating body fixing member are sequentially arranged on the open end of the gas-permeable heating assembly to fix the gas-permeable heating assembly and accommodate the gas-permeable heating assembly in the tubular shell. The gas-permeable heating assembly is electrically connected to the control unit through wires. The control unit is electrically connected to the battery unit to supply power.

7. The heat-not-burn device of claim 6, wherein, An elastic air-tight member is further provided between the tubular shell and the herbal product to limit the gas flow between the herbal product and the tubular shell.

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