A heating element for heating a cigarette smoking set
By employing a structure in which multiple layers of substrate and heating elements are alternately arranged in the heated cigarette device, segmented heating and segmented atomization are achieved, solving the problem of large differences in smoke concentration and taste during the smoking process and improving the user experience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- CHINA TOBACCO HUNAN IND CORP
- Filing Date
- 2024-12-02
- Publication Date
- 2026-06-02
AI Technical Summary
The heating element of existing heated cigarette devices produces smoke concentration and flavor that vary significantly in the early, middle, and late stages of inhalation, resulting in a poor user experience.
Design a heating element for heating cigarette devices, which adopts a structure of alternating layers of substrate and heating elements. Each substrate layer has at least one heating element on both sides, and is connected to an external control circuit through separate electrode leads to achieve segmented heating and segmented atomization effects.
By setting the heating power and time of different heating zones, different areas inside the heating element's internal cavity can be made to have different temperatures at different times, achieving a segmented and timed atomization effect of the removable smoke-generating material and improving the user experience.
Smart Images
Figure CN122123534A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of novel tobacco heating cigarette devices, and in particular to a heating element for heating cigarette devices. Background Technology
[0002] In recent years, the global market for novel tobacco products has seen strong growth, particularly heated tobacco products, which have attracted significant industry attention and led to a gradual shift in focus towards this sector. Heated cigarette devices, as atomizing devices for heated tobacco products, rely heavily on heating technology, with most employing electric heating. Currently available ceramic heating elements with circumferential heating typically use a single-stage heating process, where the entire cavity containing the smokeable material heats up during operation. Because the tobacco releases from the smokeable material are not very persistent when heated, most of these releases occur at the beginning of the smoking process. This results in significant differences in smoke concentration and flavor between the early, middle, and late stages of smoking, failing to achieve the same effect as traditional cigarettes and leading to a poor user experience. Summary of the Invention
[0003] This invention addresses the shortcomings of existing technologies by providing a heating element for heating cigarette devices that achieves segmented heating and segmented atomization effects.
[0004] To achieve the above objectives, the present invention first proposes a heating element for heating cigarette devices, comprising at least one substrate and at least two heating elements. The substrate is wound and a cavity for holding removable smoking material is formed in the middle. The heating elements are attached to the surface of the substrate. The heating elements and the substrate are arranged alternately in sequence. At least one heating element is provided on both sides of each substrate layer, so that the multiple heating elements are arranged in sequence from the center of the cavity along the radial direction to the outer diameter.
[0005] In this embodiment, each heating element is connected to an external control circuit via a separate electrode lead. The control circuit is used to control the heating power and heating time of the heating element.
[0006] In this embodiment, the substrate is a substrate with structural strength to support the heating element, and the substrate is a substrate with the function of electrically insulating adjacent heating elements.
[0007] In this embodiment, the substrate is a ceramic substrate.
[0008] In this embodiment, all heating elements are positioned in the same location along the height of the cavity.
[0009] In this embodiment, the substrate is wound to form a cylindrical shape.
[0010] In this embodiment, each heating element is provided with at least two heating zones, and the heating power of each heating zone can be adjusted individually.
[0011] In this embodiment, the area of the heating zone of each heating element is inversely proportional to its heating power.
[0012] In this embodiment, the heating element includes a first heating element attached to the inner wall of the substrate and a second heating element attached to the outer wall of the substrate. The first heating element has a first heating area and a second heating area, and the second heating element has a third heating area and a fourth heating area. The first heating area and the third heating area are arranged opposite to each other on both sides of the substrate, and the second heating area and the fourth heating area are arranged opposite to each other on both sides of the substrate.
[0013] In this embodiment, the substrate includes a first substrate and a second substrate, and the heating element includes a first heating element, a second heating element and a third heating element. The first heating element is attached to the inner wall of the first substrate, the second heating element is attached to the outer wall of the first substrate, the second substrate is disposed on the outer ring of the first substrate and contacts the second heating element, and the third heating element is attached to the outer wall of the second substrate. The first heating element has a first heating area and a second heating area, the second heating element has a third heating area, a fourth heating area and a fifth heating area, and the third heating element has a sixth heating area and a seventh heating area.
[0014] The first heating area of the first heating element corresponds to the third heating area of the second heating element in terms of position and area; the second heating area of the first heating element corresponds to the fourth and fifth heating areas of the second heating element in terms of position and total area; the sixth heating area of the third heating element corresponds to the third and fourth heating areas of the second heating element in terms of position and total area; and the seventh heating area of the third heating element corresponds to the fifth heating area of the second heating element in terms of position and area.
[0015] With the above structure, the present invention has the following advantages:
[0016] 1. Existing circumferential heating elements mostly employ single-stage heating, with the entire cavity containing the removable smoke-generating material heating up during operation. Because the tobacco releases from the removable material have poor heat retention, most of these releases occur at the initial heating stage, resulting in significant differences in smoke concentration and flavor between the early, middle, and late stages of inhalation. This fails to achieve the optimal smoking experience of traditional cigarettes, leading to a poor user experience. The present invention achieves uneven heating by setting the heating power for each heating element and adjusting the heating time for each element, allowing different areas of the cavity within the heating element to reach different temperatures at different times. This achieves a segmented atomization effect of the removable smoke-generating material within the cavity.
[0017] 2. In this invention, the heating element of the heating body is wrapped around the periphery of the cavity containing the suction material, and multiple heating elements are arranged radially along the cavity.
[0018] In summary, this invention designs a heating element supported by a cylindrical or near-cylindrical substrate. Each substrate layer has at least one heating element on both sides, and each heating element has at least two heating zones. Each heating zone has a different heating efficiency due to the different design of the heating element, thus achieving the effect of generating different temperatures in each heating zone. Each heating element in this invention achieves non-uniform heating by setting its heating power, and by setting the heating time of each heating element, different areas of the internal cavity of the heating element have different temperatures at different times, thereby achieving the effect of segmented and time-division atomization of the removable smoke-generating material inside the cavity. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the structure of the present invention.
[0020] Figure 2 This is a schematic diagram of the principle structure of Embodiment 1 of the present invention.
[0021] Figure 3 This is a schematic diagram showing the structure of Embodiment 1 of the present invention.
[0022] Figure 4 This is a cross-sectional schematic diagram of Embodiment 1 of the present invention.
[0023] Figure 5 This is a schematic diagram of the winding layout of Embodiment 1 of the present invention.
[0024] Figure 6 This is a schematic diagram of the structure of Embodiment 2 of the present invention.
[0025] Figure 7 This is a schematic diagram showing the structure of Embodiment 2 of the present invention.
[0026] Figure 8 This is a cross-sectional schematic diagram of Embodiment 2 of the present invention.
[0027] In the attached figures: 1. Receiving cavity; 2. Substrate; 21. First substrate; 201. Hole; 211. First hole; 22. Second substrate; 221. Second hole; 222. Third hole; 3. Heating element; 31. First heating element; 311. First heating area; 312. Second heating area; 32. Second heating element; 321. Third heating area; 322. Fourth heating area; 323. Fifth heating area; 33. Third heating element; 331. Sixth heating area; 332. Seventh heating area; 4. Electrode lead; 41. First lead; 42. Second lead; 43. Third lead. Detailed Implementation
[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.
[0029] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are feasible for those skilled in the art. If the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.
[0030] like Figure 1 As shown, a heating element for heating cigarettes includes at least one substrate 2 and at least two heating elements 3. The heating elements 3 are attached to the surface of the substrate. The substrate 2 is wound, forming a receiving cavity 1 in the middle. The receiving cavity 1 is used to place removable smoke-generating material. The heating elements and the substrate are arranged alternately in sequence, such that a heating element is provided on both sides of each substrate layer. The multiple heating elements 3 are arranged radially along the receiving cavity 1. The heating elements 3 are connected to an external power source through electrode leads 4 and a control circuit. In this embodiment, the substrate 2 is a ceramic substrate.
[0031] Example 1:
[0032] like Figure 2 As shown, the substrate 2 can be wound into a cylindrical or near-cylindrical shape. The heating element 3 includes a first heating element 31 and a second heating element 32. The first heating element 31 is attached to the inner wall of the substrate 2, and the second heating element 32 is attached to the outer wall of the substrate 2. The substrate 2 is disposed between the first heating element 31 and the second heating element 32. The substrate 2 has the structural strength to support the heating element, and the substrate 2 also makes the first heating element 31 and the second heating element 32 electrically insulated.
[0033] like Figure 3 As shown, the first heating element 31 is configured with two heating zones: a first heating zone 311 and a second heating zone 312. The heating power of the first heating zone 311 is set to 70%-99% of the total heating power of the first heating element 31, causing the temperature of the first heating zone 311 to rise rapidly to 180℃-350℃ during operation. The second heating zone 312, due to its lower heating power, maintains a lower temperature. To ensure the heating speed of the first heating zone 311, its area is set to 5%-40% of the total area of the first heating element 31, and the area of the second heating zone 312 is set to 60%-95% of the total area of the first heating element 31.
[0034] The second heating element 32 is configured with two heating zones: a third heating zone 321 and a fourth heating zone 322. The heating power of the fourth heating zone 322 is set to 70%-90% of the total heating power of the second heating element 32, so that when the second heating element 32 is working, the temperature of the fourth heating zone 322 is maintained at the atomization temperature of the suction material, which is 180℃-350℃. The third heating zone 321, because of its lower heating power, will maintain its temperature at the insulation temperature of the suction material, which is 100℃-200℃.
[0035] The first heating area 311 of the first heating element 31 corresponds to the third heating area 321 of the second heating element 32 in terms of position and area, and the second heating area 312 of the first heating element 31 corresponds to the fourth heating area 322 of the second heating element 32 in terms of position and area.
[0036] When the first heating element 31 is working, the upper part of the receiving cavity 1 is maintained at the atomization temperature of the extractable material (180℃-350℃), and the lower part is maintained at the insulation temperature of the extractable material (100℃-200℃). When the second heating element 32 is working, the lower part of the receiving cavity 1 is maintained at the atomization temperature of the extractable material (180℃-350℃), and the upper part is maintained at the insulation temperature of the extractable material (100℃-200℃). By setting the working time of the two heating elements, the heating element obtains different high-temperature areas at different times, thereby achieving the effect of segmented and timed atomization of the extractable material placed in the receiving cavity 1.
[0037] The heating element 3 is connected to electrode leads welded to the periphery of the heating body of this device, and is connected to an external power source through the electrode leads. Holes 201 are provided on the substrate 2, and two first leads 41 are connected to the two poles of the first heating element 31 through the holes 201. Two second leads 42 are connected to the two poles of the second heating element 32.
[0038] like Figure 4 As shown, the positional relationship of the heating element and the substrate 2 is displayed. The first heating element 31 and the second heating element 32 are vertically arranged on both sides of the substrate 2. The first heating element 31 and the second heating element 32 are the same in height. The tops of the first heating element 31 and the bottoms of the second heating element 32 are aligned with each other.
[0039] After the first heating element 31, the substrate 2, and the second heating element 32 form the heating body of this device, the first heating element 31, the substrate 2, and the second heating element 32 are arranged in a radial direction from the inside to the outside, with the central axis of the accommodating cavity 1 as the starting point.
[0040] like Figure 5 As shown in the left figure, substrate 2 is wound into a circle, as follows: Figure 5As shown in the right figure, the substrate 2 is wound into a near-circular shape, the first heating element 31 is attached to the inner wall of the substrate 2, and the second heating element 32 is attached to the outer wall of the substrate 2. The first heating element 31 and the second heating element 32 are arranged radially along the center point of the cross section.
[0041] Example 2:
[0042] The difference between this embodiment and Embodiment 1 is that this device is configured with three or more heating stages:
[0043] like Figure 6 As shown, the substrate includes a first substrate 21 and a second substrate 22. The first substrate 21 is wound into a cylindrical or near-cylindrical shape, forming an internal cavity 1. A first heating element 31 is attached to the inner wall of the first substrate 21, and a second heating element 32 is attached to the outer wall of the first substrate 21. The second substrate 22 is disposed on the outer ring of the first substrate 21 and contacts the second heating element. A third heating element 33 is attached to the outer wall of the second substrate 22. The first substrate 21 and the second substrate 22 are disposed between the three heating elements to support the structural strength of the heating body and to provide electrical insulation between the heating elements.
[0044] The first heating element 31 has a first heating zone 311 and a second heating zone 312. The heating power of the first heating zone 311 is set to 70%-99% of the total heating power of the first heating element 31, so that when the first heating element 31 is working, the temperature of the first heating zone 311 rises rapidly to 180℃-350℃, while the temperature of the second heating zone 312, due to its lower heating power, remains at a lower temperature. To ensure the heating speed of the first heating zone 311, the area of the first heating zone 311 is set to 5%-40% of the total area of the first heating element 31, and the area of the second heating zone 312 is set to 60%-95% of the total area of the first heating element 31.
[0045] The second heating element 32 is provided with a third heating zone 321, a fourth heating zone 322 and a fifth heating zone 323. The heating power of the fourth heating zone 322 is set to 70%-90% of the total heating power of the entire second heating element 32, so that when the second heating element 32 is working, the temperature of the fourth heating zone 322 is maintained at the atomization temperature of the suction material, 180℃-350℃. Because the heating power of the third heating zone 321 and the fifth heating zone 323 is lower, their temperature is maintained at the heat preservation temperature of the suction material, 100℃-200℃.
[0046] The third heating element 33 is provided with a sixth heating zone 331 and a seventh heating zone 332. The heating power of the seventh heating zone 332 is set to 70%-90% of the total heating power of the third heating element 33. This ensures that when the third heating element 33 is working, the temperature of the seventh heating zone 332 is maintained at the atomization temperature of the suction material, which is 180℃-350℃. Meanwhile, the sixth heating zone 331, due to its lower heating power, will maintain its temperature at the insulation temperature of the suction material, which is 100℃-200℃.
[0047] The first heating area 311 of the first heating element 31 corresponds to the third heating area 321 of the second heating element 32 in terms of position and area. The second heating area 312 of the first heating element 31 corresponds to the fourth heating area 322 and the fifth heating area 323 of the second heating element 32 in terms of position and total area. The sixth heating area 331 of the third heating element 33 corresponds to the third heating area 321 and the fourth heating area 322 of the second heating element 32 in terms of position and total area. The seventh heating area 332 of the third heating element 33 corresponds to the fifth heating area 323 of the second heating element 32 in terms of position and area.
[0048] When the first heating element 31 operates, it maintains the upper part of the receiving cavity 1 at the atomization temperature of the extractable material (180℃-350℃), and the middle and lower parts at the insulation temperature of the extractable material (100℃-200℃). When the second heating element 32 operates, it maintains the middle part of the receiving cavity 1 at the atomization temperature of the extractable material (180℃-350℃), and the upper and lower parts at the insulation temperature of the extractable material (100℃-200℃). When the third heating element 33 operates, it maintains the lower part of the receiving cavity 1 at the atomization temperature of the extractable material (180℃-350℃), and the upper and middle parts at the insulation temperature of the extractable material (100℃-200℃). By setting the operating time of the three heating elements, the heating element obtains different high-temperature areas at different times, thereby achieving the effect of segmented and time-segmented atomization of the extractable material placed in the receiving cavity 1.
[0049] The heating element is connected to electrode leads welded to the periphery of the heating body, and is connected to an external power source through the electrode leads. A first hole 211 is provided on the first substrate 21, and a second hole 221 and a third hole 222 are provided on the second substrate 22. The first lead 41 is connected to the two poles of the first heating element 31 through the first hole 211 and the second hole 221. The second lead 42 is connected to the two poles of the second heating element 32 through the third hole 222. The third lead 43 is connected to the two poles of the third heating element 33.
[0050] like Figure 8As shown, the first heating element 31, the second heating element 32, and the third heating element 33 are all the same height, with their tops aligned and their bottoms aligned. The first substrate 21 is placed between the first heating element 31 and the second heating element 32, and the second substrate 22 is placed between the second heating element 32 and the third heating element 33. In terms of spatial structure, this ensures that the first heating element 31, the second heating element 32, and the third heating element 33 are arranged radially from the inside to the outside, with the axis of the heating element as the starting point.
[0051] The above are merely preferred embodiments of the present invention and do not limit the patent scope of the present invention. Any equivalent structural transformations made under the concept of the present invention using the description and drawings of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.
Claims
1. A heating element for heating cigarettes, characterized in that: It includes at least one substrate (2) and at least two heating elements (3). The substrate (2) is wound and a cavity (1) for placing removable smoke-generating material is formed in the middle. The heating elements (3) are attached to the surface of the substrate (2). The heating elements (3) and the substrate (2) are arranged alternately in sequence, so that a heating element (3) is provided on both sides of each substrate (2).
2. The heating element for heating cigarettes according to claim 1, characterized in that: Each heating element (3) is connected to an external control circuit via a separate electrode lead (4), which is used to control the heating power and heating time of the heating element (3).
3. The heating element for heating cigarettes according to claim 1, characterized in that: The substrate (2) is a substrate (2) with structural strength to support the heating element (3), and the substrate (2) is a substrate (2) with the function of electrically insulating adjacent heating elements (3).
4. The heating element for heating cigarettes according to claim 3, characterized in that: The substrate (2) is a ceramic substrate (2).
5. The heating element for heating cigarettes according to claim 1, characterized in that: All heating elements (3) are positioned in the same height direction of the cavity (1).
6. The heating element for heating cigarettes according to claim 1, characterized in that: The substrate (2) is wound to form a cylindrical shape.
7. The heating element for heating cigarette-making devices according to any one of claims 1 to 6, characterized in that: Each heating element (3) has at least two heating zones, and the heating power of each heating zone can be adjusted individually.
8. The heating element for heating cigarettes according to claim 7, characterized in that: The area of the heating zone of each heating element (3) is inversely proportional to its heating power.
9. The heating element for heating cigarettes according to claim 7, characterized in that: The heating element (3) includes a first heating element (31) attached to the inner wall of the substrate (2) and a second heating element (32) attached to the outer wall of the substrate (2). The first heating element (31) is provided with a first heating area (311) and a second heating area (312). The second heating element (32) is provided with a third heating area (321) and a fourth heating area (322). The first heating area (311) and the third heating area (321) are arranged opposite to each other on both sides of the substrate (2). The second heating area (312) and the fourth heating area (322) are arranged opposite to each other on both sides of the substrate (2).
10. The heating element for heating cigarettes according to claim 7, characterized in that: The substrate (2) includes a first substrate (21) and a second substrate (22). The heating element (3) includes a first heating element (31), a second heating element (32) and a third heating element (33). The first heating element (31) is attached to the inner wall of the first substrate (21). The second heating element (32) is attached to the outer wall of the first substrate (21). The second substrate (22) is disposed on the outer ring of the first substrate (21) and contacts the second heating element (32). The third heating element (33) is attached to the outer wall of the second substrate (22). The first heating element (31) is provided with a first heating area (311) and a second heating area (312). The second heating element (32) is provided with a third heating area (321), a fourth heating area (322) and a fifth heating area (323). The third heating element (33) is provided with a sixth heating area (331) and a seventh heating area (332). The first heating area (311) of the first heating element (31) corresponds to the third heating area (321) of the second heating element (32) in terms of position and area. The second heating area (312) of the first heating element (31) corresponds to the fourth heating area (322) and the fifth heating area (323) of the second heating element (32) in terms of position and total area. The sixth heating area (331) of the third heating element (33) corresponds to the third heating area (321) and the fourth heating area (322) of the second heating element (32) in terms of position and total area. The seventh heating area (332) of the third heating element (33) corresponds to the fifth heating area (323) of the second heating element (32) in terms of position and area.