Heating body for heating non-combustion cigarette

Abstract

The utility model discloses a heating body for heating a non-burning cigarette, which comprises an equipment shell, a main limiting cylinder is fixedly sleeved in the middle of the equipment shell, vent holes are formed in the right sides of the equipment shell and the main limiting cylinder, and a first gear and a second gear are connected to the inner side of the equipment shell close to the bottom through bearings. The second gear is located at the bottom of the main limiting cylinder, the top of the second gear is fixedly connected with a threaded cylinder, the inner side of the threaded cylinder is in threaded connection with an inner pushing cylinder, the inner side of the inner pushing cylinder is movably sleeved with a power source assembly, and a power source and a matched assembly used for heating of the heating body are arranged in the power source assembly. And the top of the power supply assembly is fixedly connected with a high-resistance nano oxide ceramic layer and a heating body. According to the utility model, the high-resistance nano oxide ceramic layer and the heating body are arranged, and the spiral structure is adopted, so that the problems that the heating body is not uniform in thermal field, difficult to insert after being used for multiple times and unstable can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat-not-burn cigarettes, in particular to a heating element for heat-not-burn cigarettes. Background Art

[0002] Heat-not-burn cigarettes (HNB), also known as heated cigarettes or low-temperature cigarettes, are emerging cigarette products. Heat-not-burn cigarettes use heating rather than combustion to release nicotine and other chemical substances, thereby reducing harmful components generated by tobacco combustion.

[0003] Currently, the mainstream heating methods of HNB include two structures: sheet needle type and cylindrical needle type. The advantages of the heating element with a sheet needle type structure are fast heating speed, but the disadvantages are large insertion resistance, easy to break, and uneven heat field generated in the cartridge. In contrast, the advantages of the heating element with a cylindrical needle type structure are small insertion resistance, not easy to break, and annular heat diffusion, but there are problems such as large temperature gradient in the radial direction and instability. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the problems of large insertion resistance, easy breakage of the heating element with a sheet needle type structure in the prior art, and large temperature gradient and instability in the radial direction of the heating element with a cylindrical needle type structure, and to propose a heating element for heat-not-burn cigarettes.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A heating element for heat-not-burn cigarettes includes a device housing. A main limiting cylinder is fixedly sleeved in the middle of the device housing. Ventilation holes are provided on the right sides of the device housing and the main limiting cylinder. A first gear and a second gear are rotatably connected to the inner side of the device housing near the bottom. The second gear is located at the bottom of the main limiting cylinder. A threaded cylinder is fixedly connected to the top of the second gear. An inner pushing cylinder is threadedly connected to the inner side of the threaded cylinder. A power supply assembly is movably sleeved in the inner side of the inner pushing cylinder. A power supply and a supporting assembly for the heating of the heating element are arranged inside the power supply assembly. A high-resistance nano-oxide ceramic layer and a heating element are fixedly connected to the top of the power supply assembly. The positive pole of the transformer can be connected to the tail of the heating element, and the negative pole is connected to a metal rod, and then it is placed in a sodium bicarbonate solution with a certain concentration. Then, the voltage of the transformer is adjusted within the range of 10 - 90V, and different deposition times are controlled to in-situ grow high-resistance nano-oxide ceramic layers with different thicknesses on the surface of the heating element.

[0007] Preferably, the first gear meshes with the second gear. A driving motor is drivingly connected to the top of the first gear. The driving motor is fixedly connected to the inner side of the device housing. A clamping block is fixedly connected to the inner side of the main limiting cylinder near the top of the threaded cylinder.

[0008] Preferably, the heating element is made of alloy wire, and the heating element is in a spiral tubular shape. The top and bottom of the high-resistance nano-oxide ceramic layer are respectively at the center of the tube and perpendicular to the radial cross-section of the tube. Heating elements with different thicknesses are in-situ grown on the surface of the high-resistance nano-oxide ceramic layer.

[0009] Preferably, a limiting ring is fixedly connected to the inner side of the main limiting cylinder near the top of the high-resistance nano-oxide ceramic layer, and a spiral groove is provided on the inner side of the main limiting cylinder near the bottom of the limiting ring.

[0010] Preferably, a bearing ring is fixedly connected to the top of the inner pushing cylinder, and the top and inner side of the bearing ring are connected to the power supply assembly.

[0011] Preferably, a heating element is provided on one side of the inner pushing cylinder close to the clamping block, and the clamping block is movably clamped with the heating element.

[0012] Preferably, an adjusting block is fixedly connected to the right side of the power supply assembly, and the adjusting block is movably clamped with the inner side of the spiral groove.

[0013] Compared with the prior art, the present utility model provides a heating element for a heat-not-burn cigarette, having the following beneficial effects:

[0014] 1. For the heating element for the heat-not-burn cigarette, by providing a high-resistance nano-oxide ceramic layer and a heating element, the spiral fixing method is adopted to prevent the cartridge from falling off, the attachment removal is realized by the rotational friction method when the cartridge is withdrawn, and the cartridge is uniformly heated by the heat diffusion formed inside and outside the tubular structure. The spiral structure adopted by this device can solve the problems of uneven heat field of the heating element, difficult insertion and instability after multiple uses. Moreover, the heating element on the surface of the high-resistance nano-oxide ceramic layer can achieve the high self-cleaning property of the heating element. At the same time, the heating element is prepared by the electrochemical deposition method. Compared with the existing method for preparing the cleaning layer of the heating element at high temperature, its method is simple and safe, hardly increases the production cost and is easy for large-scale production.

[0015] 2. For the heating element for the heat-not-burn cigarette, by providing an adjusting block and an inner pushing cylinder, and with the restriction of the spiral groove on the adjusting block, the high-resistance nano-oxide ceramic layer can be spirally inserted and withdrawn, and the high-resistance nano-oxide ceramic layer and the heating element can be conveniently transported into the cartridge in a spiral manner, assisting the use of the high-resistance nano-oxide ceramic layer and the heating element, and ensuring the stability of the use of the high-resistance nano-oxide ceramic layer and the heating element. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of a heating element for a heat-not-burn cigarette proposed by the present utility model;

[0017] Figure 2 Schematic cross-sectional view of the device housing for a heating body of a heat-not-burn cigarette proposed by the present utility model;

[0018] Figure 3 Schematic cross-sectional view of the main limiting cylinder of a heating body of a heat-not-burn cigarette proposed by the present utility model;

[0019] Figure 4 Schematic cross-sectional view of the inner pushing cylinder of a heating body of a heat-not-burn cigarette proposed by the present utility model;

[0020] Figure 5 Schematic structural view of a heating body of a heat-not-burn cigarette proposed by the present utility model.

[0021] In the figure: 1, device housing; 2, main limiting cylinder; 3, ventilation hole; 4, drive motor; 5, first gear; 6, second gear; 7, threaded cylinder; 8, spiral groove; 9, limiting ring; 10, power supply assembly; 11, adjusting block; 12, bearing ring; 13, clamping block; 14, inner pushing cylinder; 15, high-resistance nano-oxide ceramic layer; 16, heating body. Detailed implementation manners

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0023] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0024] Refer to Figures 1-5A heating element for heat-not-burn cigarettes comprises a device housing 1, a main limiting cylinder 2 is fixedly sleeved in the middle of the device housing 1, ventilation holes 3 are provided on the right sides of the device housing 1 and the main limiting cylinder 2, a first gear 5 and a second gear 6 are connected by bearings at a position near the bottom of the inner side of the device housing 1, the first gear 5 is meshed with the second gear 6, a driving motor 4 is transmission-connected to the top of the first gear 5, the driving motor 4 is fixedly connected to the inner side of the device housing 1, a clamping block 13 is fixedly connected to a position near the top of the threaded cylinder 7 on the inner side of the main limiting cylinder 2, the clamping block 13 is provided so that an inner push cylinder 14 can push a power supply assembly 10 to rise stably, the second gear 6 is located at the bottom of the main limiting cylinder 2, a threaded cylinder 7 is fixedly connected to the top of the second gear 6, an inner push cylinder 14 is threadedly connected to the inner side of the threaded cylinder 7, a bearing ring 12 is fixedly connected to the top of the inner push cylinder 14, the top and inner side of the bearing ring 12 It is connected to the power supply assembly 10, and a heating element 16 is provided on one side of the inner push cylinder 14 near the clamping block 13. The clamping block 13 is movably clamped with the heating element 16. The inner side of the inner push cylinder 14 is movably sleeved with the power supply assembly 10. The right side of the power supply assembly 10 is fixedly connected with an adjusting block 11, and the adjusting block 11 is movably clamped with the inner side of the spiral groove 8. The top of the power supply assembly 10 is fixedly connected with a high-resistance nano-oxide ceramic layer 15 and a heating element 16. The inner side of the main limiting cylinder 2 is fixedly connected with a limiting ring 9 near the top of the high-resistance nano-oxide ceramic layer 15. A spiral groove 8 is provided on the inner side of the main limiting cylinder 2 near the bottom of the limiting ring 9. The spiral groove 8 is provided to facilitate the spiral advancement and withdrawal of the high-resistance nano-oxide ceramic layer 15 and the heating element 16, so that the high-resistance nano-oxide ceramic layer 15 can rub against the cigarette cartridge when withdrawing to remove the attachments on the surface of the heating element 16.

[0025] Reference Figure 5As described above, the heating element 16 is processed from alloy wire, and the heating element 16 is in a spiral tubular shape. The top and bottom of the high-resistance nano-oxide ceramic layer 15 are respectively at the center of the tube and perpendicular to the radial cross-section of the tube. The heating element 16 with different thicknesses is in-situ grown on the surface of the high-resistance nano-oxide ceramic layer 15. The heating element 16 uses iron-nickel alloy material, its spiral layer number is 3 layers and the inner diameter is less than or equal to half of the diameter of the cartridge. After depositing for 5 minutes at 15V, a high-resistance nano-iron-nickel oxide ceramic layer of about 60 nanometers is grown. After using 500 times, the surface finish is above 95%, the heat diffusion is uniform and it does not fall off under strong vibration; the heating element 16 uses brass alloy material, its spiral layer number is 4 layers and the inner diameter is less than or equal to half of the diameter of the cartridge. After depositing for 5 minutes at 30V, a high-resistance nano-copper oxide tin ceramic layer of about 100 nanometers is grown. After using 700 times, the surface finish is above 95%, the heat diffusion is uniform and it does not fall off under strong vibration; the heating element 16 uses titanium-nickel alloy material, its spiral layer number is 4 layers and the inner diameter is less than or equal to half of the diameter of the cartridge. After depositing for 5 minutes at 50V, a high-resistance nano-titanium-nickel oxide ceramic layer of about 200 nanometers is grown. After using 1000 times, the surface finish is above 95%, the heat diffusion is uniform and it does not fall off under strong vibration.

[0026] In the present utility model, during use, the heat-not-burn cigarette can be inserted into the main limiting cylinder 2 until it is restricted by the limiting ring 9 and stops inserting. Then, the driving motor 4 is started, so that the driving motor 4 drives the first gear 5, the first gear 5 drives the second gear 6, the second gear 6 drives the threaded cylinder 7, the threaded cylinder 7 drives the driving motor 4, and then through the limitation of the inner pushing cylinder 14 by the clamping block 13, the inner pushing cylinder 14 moves upward. Then, through the limitation of the spiral groove 8, the clamping block 13 drives the power supply assembly 10 to rotate along the spiral groove 8, so that the power supply assembly 10 drives the high-resistance nano-oxide ceramic layer 15 and the heating element 16 to be spirally inserted into the cartridge of the heat-not-burn cigarette. Then, through the power supply in the power supply assembly 10, the high-resistance nano-oxide ceramic layer 15 heats the cartridge.

[0027] The above is only the preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, makes equivalent replacements or changes, and all should be covered within the protection scope of the present utility model.

Claims

1. A heating element for a heat-not-burn cigarette, comprising an equipment housing (1), characterized in that, A main limiting cylinder (2) is fixedly sleeved in the middle of the device housing (1). Ventilation holes (3) are provided on the right sides of the device housing (1) and the main limiting cylinder (2). A first gear (5) and a second gear (6) are connected by bearings at a position near the bottom inside the device housing (1). The second gear (6) is located at the bottom of the main limiting cylinder (2). A threaded cylinder (7) is fixedly connected to the top of the second gear (6). An inner pushing cylinder (14) is threadedly connected inside the threaded cylinder (7). A power supply assembly (10) is movably sleeved inside the inner pushing cylinder (14). A high-resistance nano-oxide ceramic layer (15) and a heating element (16) are fixedly connected to the top of the power supply assembly (10).

2. The heating element for a heat-not-burn cigarette according to claim 1, wherein The first gear (5) meshes with the second gear (6). A driving motor (4) is drivingly connected to the top of the first gear (5). The driving motor (4) is fixedly connected to the inside of the device housing (1). A clamping block (13) is fixedly connected to a position near the top of the threaded cylinder (7) inside the main limiting cylinder (2).

3. The heating element for a heat-not-burn cigarette according to claim 1, characterized in that, The heating element (16) is processed from alloy wire and the heating element (16) is in a spiral tubular shape. The top and bottom of the high-resistance nano-oxide ceramic layer (15) are respectively at the center of the tube and perpendicular to the radial cross-section of the tube. Heating elements (16) with different thicknesses are in-situ grown on the surface of the high-resistance nano-oxide ceramic layer (15).

4. The heating element for a heat-not-burn cigarette according to claim 1, characterized in that, A limiting ring (9) is fixedly connected to a position near the top of the high-resistance nano-oxide ceramic layer (15) inside the main limiting cylinder (2). A spiral groove (8) is provided at a position near the bottom of the limiting ring (9) inside the main limiting cylinder (2).

5. The heating element for a heat-not-burn cigarette according to claim 1, wherein A bearing ring (12) is fixedly connected to the top of the inner pushing cylinder (14). The top and inside of the bearing ring (12) are connected to the power supply assembly (10).

6. The heating element for a heat-not-burn cigarette according to claim 1, characterized in that, A heating element (16) is provided on one side of the inner pushing cylinder (14) close to the clamping block (13). The clamping block (13) is movably clamped with the heating element (16).

7. The heating element for a heat-not-burn cigarette according to claim 1, characterized in that, An adjusting block (11) is fixedly connected to the right side of the power supply assembly (10). The adjusting block (11) is movably clamped with the inside of the spiral groove (8).

Images