Cigarette heating device
By setting the temperature sensor on the inner wall of the insulation tube in the heating cigarette heating device, close to the cigarette support, and combining the temperature monitoring of the heating body, the problem of no smoke output and burning smoke is solved, and precise temperature control and stable smoke volume are achieved.
Patent Information
- Application Number
- CN202420196708.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-26
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-01-26
AI Technical Summary
In the existing heating cigarette heating devices, the temperature sensor is not sensitive enough to cause smoke to be emitted or the amount of smoke is small, and when it is too sensitive, it will cause the cigarette post to burn, and it is impossible to avoid smoke and burning at the same time.
In the heating cigarette heating device, a first temperature sensor is arranged on the upper inner wall of the insulation tube, close to the cigarette support, and a second temperature sensor is used to monitor the temperature of the heating body, accurately monitor the user's suction action and avoid pre-replenishment of temperature.
A sensitive monitoring and suction action is realized to avoid small amount of smoke or no smoke output, and at the same time, the combustion of cigarette sticks is avoided, solving the problem of no smoke output and burning of cigarettes.
Smart Images
Figure CN223111084U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of heating equipment for heating cigarettes, and in particular relates to a heating device for heating cigarettes. Background Art
[0002] In the existing heating device for heating cigarettes, the temperature sensor for temperature control is arranged inside the heating body, that is, the heat generation and temperature control functions are completed by the same circuit loop. Since there is a certain distance between the heating body and the heated cigarette, the heating body is not in direct contact with the heated cigarette. This will cause the temperature sensor arranged on the heating body to be not sensitive enough, and it is not easy to monitor the user's puffing action, so that the temperature replenishment is slow, resulting in no smoke or small amount of smoke. In order to solve the problem of no smoke or small amount of smoke, a second temperature sensor is introduced in the prior art, which is specifically used to monitor the user's puffing action and assist the first temperature sensor in sensitive temperature control. However, it is too sensitive, causing the heating body to replenish temperature too early and too much, resulting in the burning of the cigarette, i.e., burning the cigarette. It fails to solve the problem of no smoke and burning the cigarette at the same time. Therefore, how to design a heating device for heating cigarettes to avoid the phenomenon of no smoke and burning the cigarette has become a technical problem that technicians in this field need to solve urgently. Utility Model Content
[0003] The purpose of the utility model is to provide a cigarette heating device to solve the above technical problems in the prior art.
[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0005] A cigarette heating device comprises a heat preservation tube, a support, a heating body and a first temperature sensor, wherein the support is arranged in the lower part of the heat preservation tube, and the heating body is arranged in the support; the upper part of the heat preservation tube is used to accommodate one end of a heated cigarette, and the first temperature sensor is arranged on the upper inner wall of the heat preservation tube and close to the heated cigarette.
[0006] Preferably, the first temperature sensor is a TCR temperature sensor.
[0007] Preferably, the first temperature sensor is annular in shape, an annular groove is provided on the circumference of the upper inner wall of the thermal insulation tube, and the first temperature sensor is arranged in the annular groove.
[0008] Preferably, the first temperature sensor is in the shape of an elongated strip, and an elongated strip groove extending along the axial direction is provided on the upper inner wall of the thermal insulation tube, and the first temperature sensor is arranged in the elongated strip groove.
[0009] Preferably, the first temperature sensor is a thermocouple temperature sensor.
[0010] Preferably, it further includes a second temperature sensor for monitoring the temperature of the heating element, and the second temperature sensor is disposed inside the heating element.
[0011] The beneficial effects of the present utility model are as follows:
[0012] In the heating cigarette heating device of the present utility model, the first temperature sensor is disposed on the upper inner wall of the heat preservation tube and is close to the heating cigarette stick. Compared with the prior art where it is disposed on the heating element, it is closer to the user's suction position and also closer to the cigarette stick, thus facilitating sensitive monitoring of the suction action and avoiding the phenomenon of small smoke volume or no smoke due to the failure to detect the suction action. At the same time, when the user sucks, although the inner wall temperature of the heat preservation tube and the temperature of the heating element will both decrease, because the inner wall of the heat preservation tube contacts or is close to the cigarette stick, the temperature of the inner wall of the heat preservation tube drops more significantly and cools down earlier. Compared with the prior art, the first temperature sensor can more accurately monitor the user's suction action, and the temperature monitored by the first temperature sensor can more truly reflect the temperature drop of the cigarette stick during the user's suction, that is, the temperature drop process, thereby effectively avoiding the occurrence of the phenomenon of burning the cigarette due to premature temperature compensation. It can be seen that the present utility model can effectively avoid the occurrence of the phenomenon of burning the cigarette while avoiding no smoke or small smoke volume. Description of the Drawings
[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required in the embodiments, and will further elaborate on the specific embodiments of the present utility model in conjunction with the drawings, where
[0014] Figure 1 is a schematic diagram of the cooperation between the heat preservation tube and the heating cigarette stick provided by the embodiment of the present utility model.
[0015] Reference numerals in the drawings:
[0016] 11, heat preservation tube; 21, support member, 22, heating element; 31, first temperature sensor;
[0017] 41, heating cigarette stick. Detailed Embodiments
[0018] In order to enable those skilled in the art to better understand the technical solutions of the present utility model, the following will further introduce the present solution in detail in conjunction with specific embodiments.
[0019] As Figure 1As shown in the figure, an embodiment of the present invention provides a heating device for heated tobacco products, which includes a heat preservation tube 11, a support member 21, a heating element 22 and a first temperature sensor 31. The support member 21 is arranged inside the lower part of the heat preservation tube 11, and the heating element 22 is arranged in the support member 21. One end of the heated tobacco product cigarette 41 is accommodated inside the upper part of the heat preservation tube 11. The first temperature sensor 31 is arranged on the inner wall of the upper part of the heat preservation tube 11 and is close to the heated tobacco product cigarette 41.
[0020] In the heating device for heated tobacco products provided by the embodiment of the present invention, the first temperature sensor 31 is arranged on the inner wall of the upper part of the heat preservation tube 11 and is close to the heated tobacco product cigarette 41. Compared with the prior art where it is arranged on the heating element, it is closer to the user's suction position and also closer to the cigarette, thus facilitating the sensitive monitoring of the suction action and avoiding the phenomenon of small smoke volume or no smoke due to the failure to detect the suction action. At the same time, when the user sucks, although the temperature of the inner wall of the heat preservation tube 11 and the heating element will both decrease, because the inner wall of the heat preservation tube 11 contacts or is close to the heated tobacco product cigarette 41, therefore, the temperature of the inner wall of the heat preservation tube 11 drops more significantly and cools down earlier. Compared with the prior art, the first temperature sensor 31 can more accurately monitor the user's suction action, and the temperature detected by the first temperature sensor 31 can more truly reflect the temperature drop of the cigarette during the user's suction, that is, the temperature drop process, so as to effectively avoid the phenomenon of burning the cigarette due to premature temperature compensation. It can be seen that the present invention can effectively avoid the phenomenon of no smoke or small smoke volume while avoiding the phenomenon of burning the cigarette.
[0021] In an embodiment provided by the present invention, the first temperature sensor 31 is a TCR temperature sensor. It can be understood that, like in the prior art, the temperature measurement characteristic of the TCR temperature sensor is that it can measure the average temperature of the measured part.
[0022] In an embodiment, the shape of the first temperature sensor 31 is annular, and an annular groove is provided on the circumference of the inner wall of the upper part of the heat preservation tube 11, and the first temperature sensor is arranged in the annular groove. With this solution, the first temperature sensor can measure the average temperature in the circumferential direction of the cigarette during suction, so that the temperature of the inner wall of the heat preservation tube or the temperature of the cigarette measured by the first temperature sensor can be closer to the actual temperature of the cigarette during suction.
[0023] In another embodiment, the first temperature sensor 31 is in the shape of a strip. A long groove extending along the axial direction is provided on the upper inner wall of the heat preservation tube 11, and the first temperature sensor is arranged in the long groove. With this solution, the average temperature in the axial direction of the cigarette rod or the heat preservation tube can be measured by the first temperature sensor, so that the temperature of the inner wall of the heat preservation tube or the temperature of the cigarette rod measured by the first temperature sensor can be closer to the actual temperature of the cigarette rod during smoking.
[0024] In another embodiment provided by the present utility model, the first temperature sensor 31 is a thermocouple temperature sensor. It can be understood that, as in the prior art, the characteristic of the thermocouple temperature sensor for temperature measurement is that it can measure the actual temperature of a certain point. Preferably, at this time, the number of thermocouple temperature sensors is multiple, and a plurality of grooves are provided on the upper inner wall of the heat preservation tube in both the circumferential direction and the axial direction, and a thermocouple temperature sensor is arranged in each groove, so as to be able to measure the temperature field distribution of the upper inner wall of the heat preservation tube or the cigarette rod, making the measured temperature closer to the actual situation.
[0025] Specifically, the heated cigarette heating device further includes a second temperature sensor for monitoring the temperature of the heating element 22. The second temperature sensor is arranged in the heating element 22, so as to avoid the service life of the heating element being shortened due to the over-high temperature of the heating element. It can be understood that the first temperature sensor and the second temperature sensor are respectively electrically connected to the control system of the heated cigarette heating appliance, so as to facilitate automatic control during the use of the heating appliance. The control principle of the heated cigarette heating appliance, the heating element and the support member are the same as those in the prior art, and will not be elaborated here.
[0026] During use, during the preheating stage of the heating element 22, heating without temperature control is performed, that is, temperature measurement is not carried out relying on the temperature feedback of the second temperature sensor, but heating is performed at a fixed power within a limited time. For example, the target temperature of the heating element during the preheating stage is 350 °C, and the preheating time is 20 seconds. During the period from 0 to 10 seconds, the heating element driving component can heat the heating element at a fixed power of 10 W. At the 11th second, the temperature of the heating element will reach 350 °C, and the heating element driving component stops heating the heating element at a high power of 10 W, but instead uses a low power of 2 W to heat it until the 20th second, and then ends the heating; during the above entire process, the heating element is not monitored by the second temperature sensor, and parameters such as the heating power and the heating duration can be obtained by repeated experiments.
[0027] In the present utility model, the first temperature sensor 31 is disposed on the inner wall of the heat preservation pipe 11 and is used to specifically measure the temperature of the cigarette. The heating element is only responsible for generating heat throughout the entire process including preheating and constant temperature. However, in the prior art, the temperature sensor is disposed on the heating element, so that the heating element not only has to generate heat, but also has to obtain the real-time temperature by measuring its temperature, that is, it also has to undertake temperature measurement. It can be seen that the present utility model not only strictly separates temperature measurement and heat generation, but also can well solve the problems of small smoke volume and cigarette burning during the use of the heating appliance at the same time.
[0028] The above are only the preferred embodiments of the present utility model. It should be noted that these embodiments are only used to illustrate the present utility model and not to limit the scope of the present utility model. Moreover, after reading the content of the present utility model, those skilled in the relevant art can make various changes or modifications to the present utility model, and these equivalent forms also fall within the scope defined by the appended claims of this application.
Claims
1. A heating device for a heated cigarette, characterized in that, It includes a heat preservation pipe, a support member, a heating element and a first temperature sensor. The support member is arranged inside the lower part of the heat preservation pipe, and the heating element is arranged in the support member. One end of a heated cigarette is accommodated inside the upper part of the heat preservation pipe, and the first temperature sensor is arranged on the inner wall of the upper part of the heat preservation pipe and is close to the heated cigarette.
2. The heating cigarette heating device according to claim 1, characterized in that, The first temperature sensor is a TCR temperature sensor.
3. The heating cigarette heating device according to claim 2, characterized in that, The first temperature sensor is in a ring shape, and an annular groove is arranged on the circumference of the inner wall of the upper part of the heat preservation pipe, and the first temperature sensor is arranged in the annular groove.
4. The heating cigarette heating device according to claim 2, characterized in that, The first temperature sensor is in a strip shape, and a strip-shaped groove extending along its axial direction is arranged on the inner wall of the upper part of the heat preservation pipe, and the first temperature sensor is arranged in the strip-shaped groove.
5. The heating cigarette heating device according to claim 1, characterized in that, The first temperature sensor is a thermocouple temperature sensor.
6. The heating cigarette heating device according to any one of claims 1 to 5, characterized in that, It further includes a second temperature sensor for monitoring the temperature of the heating element, and the second temperature sensor is arranged inside the heating element.