Cigarette heating structure and smoking set

Abstract

The application relates to a cigarette heating structure and a smoking set. The cigarette heating structure comprises a heating needle, a heating wire and a heating sheet. The heating needle is internally provided with a containing cavity, and is used for being inserted into a cigarette. The heating wire is contained in the containing cavity, and is used for heating to heat the heating needle. The heating sheet is fixed on a preset region of the outer surface of the heating needle, and is used for abutting against tobacco in the cigarette to heat the tobacco. According to the application, the heating sheet is arranged on the preset region of the outer surface of the heating needle, so that the heating wire and the heating sheet heat at the same time during the preheating stage of the cigarette, the preheating time of the heating needle is shortened, and the heating sheet directly contacts the tobacco in the cigarette, so that the aerosol in the cigarette can be quickly roasted, and the smoking requirement is met.

Description

Technical Field

[0001] This application relates to the field of cigarette heating technology, and in particular to cigarette heating structures and smoking devices. Background Technology

[0002] Heating needles are common core components used to heat cigarettes. Existing heating needles mainly rely on the heating wire inside the needle to generate heat, which is then conducted to the heating needle to heat the tobacco in the cigarette. However, the heating wire needs a certain amount of time to generate heat and conduct it to the heating needle, resulting in a long preheating time for the heating needle and affecting the user's smoking experience. Utility Model Content

[0003] Therefore, it is necessary to provide a cigarette heating structure to address the problem that the existing heating wire requires a certain amount of time to heat up and conduct the heat to the heating needle, resulting in a long preheating time for the heating needle and affecting the user's smoking experience.

[0004] A cigarette heating structure, comprising:

[0005] A heating needle, wherein the heating needle has a receiving cavity, and the heating needle is used to be inserted into a cigarette;

[0006] A heating wire, wherein the heating wire is housed in the receiving cavity, the heating wire being used to generate heat to heat the heating needle; and,

[0007] A heating element is fixed to a predetermined area on the outer surface of the heating needle. The heating element is used to contact the tobacco inside the cigarette to heat the tobacco.

[0008] In one embodiment, the preset area on the outer surface of the heating needle is provided with heating circuitry, which is constructed as the heating element.

[0009] In one embodiment, the heating circuit is distributed in a bent manner along the circumference of the heating needle in the preset area.

[0010] In one embodiment, the cigarette heating structure further includes a positive electrode and a negative electrode, both of which are electrically connected to the side of the heating element away from the tip of the heating needle.

[0011] In one embodiment, the cigarette heating structure further includes a heat equalization medium layer, which is fixed around the circumference of the heating needle on the outer surface of the heating needle, and the heating element is fixed on the side of the heat equalization medium layer away from the heating needle.

[0012] In one embodiment, the dimension of the heat spreader layer in the axial direction of the heating needle is larger than the dimension of the heating element in the axial direction of the heating needle.

[0013] In one embodiment, the heating wire is spirally wound around the heating needle within the receiving cavity.

[0014] In one embodiment, the area around the heating wire is divided into a first heating area, a second heating area, and a third heating area; the second heating area corresponds to the preset area, and the heating wire winding density in the second heating area is less than the heating wire winding density in either the first heating area or the third heating area.

[0015] In one embodiment, the heating wire winding density in the first heating region is the same as the heating wire winding density in the third heating region.

[0016] This application also provides a smoking device that can solve at least one of the above-mentioned technical problems.

[0017] A smoking device comprising the above-described cigarette heating structure.

[0018] Beneficial effects:

[0019] The cigarette heating structure provided in this application includes a heating needle, a heating wire, and a heating plate. The heating needle has a receiving cavity and is inserted into a cigarette. The heating wire is housed in the receiving cavity and generates heat to heat the heating needle. The heating plate is fixed to a predetermined area on the outer surface of the heating needle and comes into contact with the tobacco inside the cigarette to heat it. By placing the heating plate in a predetermined area on the outer surface of the heating needle, this application allows the heating wire and heating plate to heat simultaneously during the preheating stage of the cigarette, thereby shortening the preheating time of the heating needle. Furthermore, the heating plate directly contacts the tobacco inside the cigarette, rapidly baking the aerosol inside the cigarette to meet smoking requirements.

[0020] This application also provides a smoking device including the above-described cigarette heating structure. This smoking device can achieve at least one of the aforementioned technical effects. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of a cigarette heating structure provided in an embodiment of this application.

[0022] Figure 2 This is a cross-sectional view of a cigarette heating structure provided in an embodiment of this application.

[0023] Figure 3 This is a cross-sectional view of a smoking device provided in an embodiment of this application.

[0024] Icon labels:

[0025] 100-Heating needle; 110-Receiving cavity; 120-Tip; 130-Opening; 200-Heating wire; 210-First heating area; 220-Second heating area; 230-Third heating area; 240-Extension section; 250-Spiral section; 300-Heating element; 310-Positive electrode; 320-Negative electrode; 400-Heating medium layer; 500-Cigarette. Detailed Implementation

[0026] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0027] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0028] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0029] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0030] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0031] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0032] See Figure 1 , Figure 1 This is a schematic diagram of a cigarette heating structure provided in an embodiment of this application. The cigarette heating structure provided in an embodiment of this application includes a heating needle 100, a heating wire 200, and a heating plate 300. The heating needle 100 has a receiving cavity 110 and is used to insert into a cigarette 500. The heating wire 200 is housed in the receiving cavity 110 and is used to generate heat to heat the heating needle 100. The heating plate 300 is fixed to a predetermined area on the outer surface of the heating needle 100 and is used to abut against the tobacco inside the cigarette 500 to heat the tobacco.

[0033] Specifically, this application provides a heating element 300 in a preset area on the outer surface of the heating needle 100, so that the heating wire 200 and the heating element 300 heat up simultaneously during the preheating stage of the cigarette 500, thereby shortening the preheating time of the heating needle 100. Furthermore, the heating element 300 directly contacts the tobacco inside the cigarette 500, thereby quickly baking the aerosol inside the cigarette 500 to meet the smoking requirements.

[0034] It should be noted that the preset area is a local area on the outer surface of the heating needle 100, that is, the heating element 300 is only provided on a part of the outer surface of the heating needle 100. This avoids the tobacco from being locally scorched due to the heating element 300 having an excessively large area and excessive heat during direct contact with the tobacco. Preferably, the preset area is located in the middle area of ​​the heating needle 100 along its own axial direction.

[0035] See Figure 1 In one embodiment, a heating circuit is provided in a preset area on the outer surface of the heating needle 100, and the heating circuit is constructed as a heating element 300.

[0036] Specifically, the heating needle 100 is made of insulating material. When the heating circuit is energized, it can generate heat to conduct heat to the heating needle 100. Preferably, the heating needle 100 is made of ceramic material.

[0037] The heating circuit is formed by printing materials such as a heat-generating paste onto the outer surface of the heating needle 100 according to a specific circuit pattern using a printing process. For example, during manufacturing, the composition ratio of the conductive film layer is controlled to prepare a uniformly mixed metal or alloy powder, which is then made into a resistive paste. This resistive paste is then printed onto the outer surface of the ceramic heating needle 100 in a preset shape to form the heating circuit.

[0038] See Figure 1 In one embodiment, the heating element 300 is distributed in a bent manner along the circumferential direction of the heating needle 100 in a preset area. Compared to a method where the heating element 300 is distributed in a bent manner along the axial direction of the heating needle 100 in the preset area, the smaller size of the heating needle 100 in this application allows for easier printing of the heating circuitry when the resistive paste is printed on its outer surface.

[0039] See Figure 1 and Figure 2 , Figure 2 This is a cross-sectional view of a cigarette heating structure provided in one embodiment of this application. In one embodiment, the cigarette heating structure further includes a positive electrode 310 and a negative electrode 320, both of which are electrically connected to the side of the heating element 300 away from the tip 120 of the heating needle 100.

[0040] Specifically, the positive electrode 310 and the negative electrode 320 are electrically connected to the positive and negative terminals of the power supply, respectively, thereby forming a closed circuit with the heating circuit to energize the heating element 300 and generate heat. Since both the positive electrode 310 and the negative electrode 320 are electrically connected to the side of the heating element 300 away from the tip 120 of the heating needle 100, when the heating needle 100 is inserted into the cigarette 500, the positive electrode 310 and the negative electrode 320 can easily extend out to connect to an external power supply.

[0041] See Figure 1 and Figure 2In one embodiment, the cigarette heating structure further includes a heat equalization medium layer 400, which is fixed circumferentially around the outer surface of the heating needle 100. A heating element 300 is fixed to the side of the heat equalization medium layer 400 away from the heating needle 100, so that the heat emitted by the heating element 300 is first conducted to the heat equalization medium layer 400, thus dispersing the heat on the heating element 300 to achieve uniform temperature at a constant rate, preventing the heating element 300 from concentrating heat and scorching the tobacco. The heat equalization medium layer 400 is made of an insulating material.

[0042] See Figure 1 and Figure 2 In one embodiment, the size of the heat spreader layer 400 in the axial direction of the heating needle 100 is larger than the size of the heating element 300 in the axial direction of the heating needle 100.

[0043] Specifically, the area of ​​the heat spreader layer 400 attached to the heating needle 100 is larger than the area of ​​the preset region, which facilitates the dispersal of heat from the heating element 300 and avoids the heating element 300 from heating up in a concentrated manner.

[0044] See Figure 1 and Figure 2 In one embodiment, the heating wire 200 is spirally wound around the heating needle 100 within the receiving cavity 110.

[0045] Specifically, the heating needle 100 has an opening 130 on the side opposite to the tip 120, and the heating wire 200 extends into the receiving cavity 110 through the opening 130. When the heating wire 200 is electrically connected to an external power source, it can conduct electricity to generate heat. Since the heating wire 200 is spirally wound around the heating needle 100 within the receiving cavity 110, the volume of the heating wire 200 housed within the receiving cavity 110 is increased, thereby increasing the heat output of the heating wire 200 within the receiving cavity 110. This allows the heating wire 200 to transfer more heat to the heating needle 100 to heat the cigarette 500.

[0046] Furthermore, the heating wire 200 includes an extension section 240 and a spiral section 250. One end of the extension section 240 is located outside the receiving cavity 110 for electrical connection to a power source, and the other end of the extension section 240 extends into the receiving cavity 110 through the opening 130 and extends to the region corresponding to the tip 120 of the heating needle 100. One end of the spiral section 250 is located outside the receiving cavity 110 for electrical connection to a power source, and the other end of the spiral section 250 extends into the receiving cavity 110 through the opening 130, spirally wraps around the axis of the heating needle 100 to the region corresponding to the tip 120 of the heating needle 100, and connects with the extension section 240. The cooperative arrangement of the extension section 240 and the spiral section 250 increases the strength of the heating wire 200 housed in the receiving cavity 110, keeping the heating wire 200 in a spiral state, thereby facilitating the insertion of the heating wire 200 into the heating needle 100. When the heating wire 200 is inserted into the heating needle 100, glue is poured into the receiving cavity 110 to maintain the posture of the heating wire 200 and the stability of the connection between the heating wire 200 and the heating needle 100.

[0047] See Figure 1 and Figure 2 In one embodiment, the surrounding area of ​​the heating wire 200 is divided into a first heating area 210, a second heating area 220 and a third heating area 230; the second heating area 220 corresponds to a preset area, and the surrounding density of the heating wire 200 in the second heating area 220 is less than the surrounding density of the heating wire 200 in either the first heating area 210 or the third heating area 230.

[0048] Specifically, since the second heating region 220 corresponds to the preset region, the region corresponding to the heating needle 100 and the second heating region 220 is heated jointly by the heating plate 300 and the heating wire 200. In this application, the heating wire 200 winding density in the second heating region 220 is less than the heating wire 200 winding density in the first heating region 210 and the third heating region 230, thereby making the heat generated in the second heating region 220 lower than that in the first heating region 210 and the third heating region 230. This neutralizes the temperature of the region corresponding to the heating needle 100 and the second heating region 220 after the heating plate 300 has heated it, thereby improving the heating uniformity of the heating needle 100 and the stability of the heating needle 100 in heating tobacco.

[0049] Furthermore, the first heating zone 210 is used to bake the upper part of the tobacco, the third heating zone 230 is used to bake the lower part of the tobacco, and the second heating zone 220 is used to bake the middle part of the tobacco, so as to distribute the heat of the middle part of the tobacco to both ends of the cigarette 500 in a timely manner, thereby improving the uniformity of heating the cigarette 500.

[0050] See Figure 1 and Figure 2In one embodiment, the heating wire 200 in the first heating region 210 has the same winding density as the heating wire 200 in the third heating region 230, thereby making the heating needle 100 heat the upper and lower sections of the tobacco equally, further improving the uniformity of heating the cigarette 500.

[0051] See Figure 1 , Figure 2 and Figure 3 , Figure 3 This is a cross-sectional view of a smoking device provided according to an embodiment of this application. This application also provides a smoking device including the aforementioned cigarette heating structure. By providing a heating element 300 in a predetermined area on the outer surface of the heating needle 100, this application ensures that during the preheating stage of the cigarette 500, the heating wire 200 and the heating element 300 heat up simultaneously, thereby shortening the preheating time of the heating needle 100. Furthermore, the heating element 300 directly contacts the tobacco inside the cigarette 500, rapidly baking the aerosol inside the cigarette 500 to meet smoking requirements.

[0052] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0053] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A cigarette heating structure, characterized in that, The cigarette heating structure includes: A heating needle, wherein the heating needle has a receiving cavity, and the heating needle is used to be inserted into a cigarette; A heating wire, wherein the heating wire is housed in the receiving cavity, the heating wire being used to generate heat to heat the heating needle; and, A heating element is fixed to a predetermined area on the outer surface of the heating needle. The heating element is used to contact the tobacco inside the cigarette to heat the tobacco.

2. The cigarette heating structure according to claim 1, characterized in that, The preset area on the outer surface of the heating needle is provided with heating circuits, and the heating circuits are constructed as heating elements.

3. The cigarette heating structure according to claim 2, characterized in that, The heating circuit is distributed in a bent manner along the circumference of the heating needle in the preset area.

4. The cigarette heating structure according to claim 3, characterized in that, The cigarette heating structure also includes a positive electrode and a negative electrode, both of which are electrically connected to the side of the heating element away from the tip of the heating needle.

5. The cigarette heating structure according to claim 1, characterized in that, The cigarette heating structure further includes a heat equalization medium layer, which is fixed around the circumference of the heating needle on the outer surface of the heating needle, and the heating element is fixed on the side of the heat equalization medium layer away from the heating needle.

6. The cigarette heating structure according to claim 5, characterized in that, The dimension of the heat-spreading medium layer in the axial direction of the heating needle is larger than the dimension of the heating element in the axial direction of the heating needle.

7. The cigarette heating structure according to any one of claims 1-6, characterized in that, The heating wire is spirally wound around the heating needle within the receiving cavity.

8. The cigarette heating structure according to claim 7, characterized in that, The heating wire is divided into a first heating area, a second heating area, and a third heating area. The second heating area corresponds to the preset area, and the heating wire winding density in the second heating area is less than the heating wire winding density in either the first heating area or the third heating area.

9. The cigarette heating structure according to claim 8, characterized in that, The heating wire winding density in the first heating area is the same as the heating wire winding density in the third heating area.

10. A smoking device, characterized in that, Includes the cigarette heating structure as described in any one of claims 1-9.

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