Heat-not-burn appliance and heating module thereof

Abstract

The utility model relates to a heat-not-burn appliance, in particular to a heating module of the heat-not-burn appliance. The heating module for heating the non-combustible appliance comprises a module body, a cigarette channel is formed in the module body, a cigarette is inserted into the cigarette channel, and a cigarette inserting opening is formed in one end of the cigarette channel; the support is fixed to the end, away from the cigarette inserting opening, of the cigarette channel. The temperature measuring probe is fixed on the support, a gap is formed between the temperature measuring probe and the channel wall of the cigarette channel, and the temperature measuring probe protrudes out of the support and extends to the cigarette inserting opening; the heating piece is arranged on the periphery of the cigarette channel, and the heating piece is used for heating the cigarette in the cigarette channel. The utility model mainly solves the technical problem of how to enable a heat-not-burn appliance to accurately reflect the actual heating temperature of a cigarette.

Description

Technical Field

[0001] This utility model relates to heating non-combustible appliances, and particularly to heating modules of heating non-combustible appliances. Background Art

[0002] HNB (Heat Not Burning) devices are a new type of tobacco product that uses a specially designed heating module to heat the cigarette at a relatively low temperature, thereby producing aerosol smoke. To ensure effective aerosol generation, the heating temperature of the cigarette in HNB devices needs to be controlled.

[0003] Currently, heated non-combustible appliances either monitor the surface temperature of the heating element through thermocouples (e.g., a heating mechanism and aerosol generating device disclosed in Chinese patent application CN116725255A), or control the temperature of the thick film through TCR (Temperature Coefficient of Resistance, which represents the relative change in resistance when the temperature changes by 1 degree Celsius).

[0004] However, due to factors such as heat conduction and external temperature, the current temperature detection methods may not accurately reflect the actual heating temperature of the cigarette, potentially causing the tobacco to taste burnt or the smoke to scald the mouth. Utility Model Content

[0005] This invention mainly addresses the technical problem of how to make heated non-combustible appliances accurately reflect the actual heating temperature of cigarettes.

[0006] Firstly, this utility model provides a heating module for a non-combustible heating appliance.

[0007] A heating module for a non-combustible heating appliance, comprising:

[0008] The module body is provided with a cigarette channel for inserting a cigarette, and one end of the cigarette channel is provided with a cigarette insertion port;

[0009] The support is fixed to the end of the cigarette channel away from the cigarette insertion port;

[0010] A temperature probe is fixed on the support, and there is a gap between the temperature probe and the channel wall of the cigarette channel. The temperature probe protrudes from the support and extends toward the cigarette insertion port.

[0011] The heating element is disposed around the periphery of the cigarette channel and is used to heat the cigarette in the cigarette channel.

[0012] In one technical solution, the temperature measuring probe is arranged coaxially with the cigarette channel.

[0013] In one technical solution, the main body of the module is further provided with an air intake channel, the air intake channel is connected to the end of the cigarette channel away from the cigarette insertion port, the support is provided between the air intake channel and the cigarette channel, and the support is provided with a connecting hole.

[0014] In one technical solution, the connecting holes are evenly distributed around the temperature measuring probe.

[0015] In one technical solution, the end of the temperature probe extending toward the cigarette insert is provided with a pointed end.

[0016] In one technical solution, the temperature measuring probe is a thermocouple probe.

[0017] In one technical solution, the support is provided with a probe hole, which extends through the support along the axial direction of the cigarette channel, and the end of the temperature measuring probe near the air inlet channel extends out of the probe hole to lead out a thermocouple wire.

[0018] In one technical solution, the heating element includes a heating sleeve and a heating element, the heating sleeve is used to enclose the cigarette channel, and the heating element is disposed on the heating sleeve.

[0019] In one technical solution, the support is disposed inside the heating jacket at one end near the air intake channel.

[0020] In one technical solution, the heating element is a heating film and / or heating wire attached to the outer wall of the heating sleeve.

[0021] Secondly, this utility model provides a heating non-combustible appliance.

[0022] A heat-not-burning appliance, comprising:

[0023] case;

[0024] The heating module, power module, and circuit board are disposed within the housing, wherein the heating module is the heating module described in any of the above technical solutions.

[0025] The beneficial effects of this utility model are:

[0026] By setting a protruding temperature probe on the support, after the cigarette is inserted into the cigarette channel on the heating module, the temperature probe can be inserted into the inside of the cigarette, thereby directly detecting the heating temperature of the cigarette. The heating element is set on the outside of the cigarette channel, which can avoid interfering with the temperature of the temperature probe, which helps to ensure the accuracy of the detection results and accurately reflect the actual heating temperature of the cigarette. This helps to avoid the problem of overheating, which can cause the tobacco to burn or burn the mouth. Attached Figure Description

[0027] Figure 1 A schematic diagram of the structure of a heating module for heating non-combustible appliances according to one embodiment;

[0028] Figure 2 for Figure 1 The main view;

[0029] Figure 3 for Figure 2 AA isometric sectional view;

[0030] Figure 4 for Figure 3 Front view of the part excluding the cigarette;

[0031] Figure 5 An exploded diagram of a non-combustible heating appliance.

[0032] List of feature names corresponding to the labels in the figure:

[0033] 100. Main module body; 110. Upper heat pipe; 120. Lower heat pipe; 131. Cigarette channel; 132. Air inlet channel; 140. Cigarette insertion port; 150. Insulation cavity;

[0034] 200, Support; 210, Probe Hole; 220, Connecting Hole;

[0035] 300. Temperature probe; 310. Tip;

[0036] 400. Heating element; 410. Heating jacket; 420. Heating element;

[0037] 500 cigarettes. DETAILED DESCRIPTION

[0038] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. Similar elements in different embodiments are referred to by related similar element reference numerals. In the following embodiments, many details are described to facilitate a better understanding of the present application. However, those skilled in the art will readily recognize that some features may be omitted in different situations, or may be replaced by other elements, materials, or methods. In some cases, certain operations related to the present application are not shown or described in the specification. This is to avoid obscuring the core parts of the present application with excessive description. For those skilled in the art, detailed description of these related operations is not necessary; they can fully understand the related operations based on the description in the specification and general technical knowledge in the art.

[0039] Furthermore, the features, operations, or characteristics described in the specification can be combined in any suitable manner to form various embodiments. At the same time, the steps or actions in the method description can be rearranged or adjusted in a manner obvious to those skilled in the art. Therefore, the various orders in the specification and drawings are only for the clear description of a particular embodiment and do not imply a necessary order, unless otherwise stated that a particular order must be followed.

[0040] The serial numbers assigned to components in this document, such as "first" and "second," are used only to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages).

[0041] An embodiment of the heating module of the non-combustible heating appliance of this utility model:

[0042] Please refer to Figures 1 to 5 The heating module of the heated non-combustible appliance includes a module body 100, a support 200, a temperature probe 300, and a heating element 400. The module body 100 adopts a split structure, including an upper heat pipe 110 and a lower heat pipe 120, while the heating element 400 includes a heating sleeve 410 and a heating element 420.

[0043] The module body 100 is one of the main components inside the heated non-combustible appliance, such as... Figure 4In one embodiment, the device is provided with a cigarette channel 131 and an air inlet channel 132. The cigarette channel 131 is for inserting a cigarette 500. One end of the cigarette channel 131 has a cigarette insertion port 140, and the other end is connected to the air inlet channel 132. When the user uses the heated non-combustible appliance, the cigarette 500 is inserted into the cigarette channel 131 and heated to a certain temperature by the heating element 400. When inhaling, air can enter the module body 100 from the air inlet channel 132, and after passing through the heated cigarette 500, it carries the atomized material into the user's mouth. Those skilled in the art will know that the cigarette 500 is a cigarette for HBN appliances, which does not burn when inhaled, but only produces atomized material at a lower temperature than ordinary combustible cigarettes. The cigarette 500 can be configured to be withdrawable and replaced from the cigarette channel 131 of the module body 100.

[0044] It should be noted that, in addition to adopting a bottom air intake structure, i.e., the air enters the module body 100 through the air intake channel 132, the heated non-combustible appliance can also adopt a top air intake structure. For example, a support structure, such as a support protrusion, can be set inside the cigarette channel 131. The support structure can position the cigarette so that after the cigarette is inserted into the cigarette channel 131, a gap is formed between the cigarette and the inner wall of the cigarette channel 131, and air can flow from the cigarette channel 131 along the side wall of the cigarette channel 131 to the bottom of the cigarette and then enter the cigarette. Alternatively, a channel can be set between the shell and the cigarette channel 131 to achieve top air intake.

[0045] In one embodiment, the upper part of the upper heating pipe 110 has a necked portion, the top opening of which forms a cigarette insert 140, while the diameter of the lower part is larger than that of the upper necked portion, forming a heat-insulating cavity 150 with the cylindrical heating element 400 inside the upper heating pipe 110. The lower heating pipe 120 is connected to the lower end of the upper heating pipe 110, for example, it can be embedded in the lower end of the upper heating pipe 110 and sealed by a sealing element. In addition to fixing the lower end of the heating element 400, the lower heating pipe 120 can also work with the upper heating pipe 110 to fix the heating element 400. The lower heating pipe 120 is also provided with an air inlet channel 132, which can form a suction airflow when the user inhales. In some other embodiments, the module body 100 can also be an integral structure, or it can adopt other component assembly structures, for example, assembling various components from one axial end of the module body 100.

[0046] It should be noted that the above descriptions of directions such as "upper" and "lower" are only for the purpose of more clearly illustrating the specific implementation methods and technical solutions of this utility model and indicating the positional relationship between the various components. They do not limit the specific implementation methods and technical solutions of this utility model to be arranged in this way.

[0047] A heating element 400 is disposed around the periphery of the cigarette channel 131 and is used to heat the cigarette 500 within the cigarette channel 131. In one specific embodiment, the cigarette channel 131 is mainly surrounded by the heating element 400, with another part surrounded by the module body 100. A limiting step is provided at the bottom end of the inner hole of the constricted portion of the upper heat pipe 110. The limiting step has a downward-facing stop surface, forming a countersunk hole. The upper end of the heating element 400 is embedded in the countersunk hole formed by the limiting step. Additionally, a limiting step is also provided at the top end of the inner hole of the lower heat pipe 120. The limiting step has an upward-facing stop surface. The lower end of the heating element 400 is embedded in the countersunk hole formed by the limiting step on the lower heat pipe 120, thereby achieving axial and radial positioning. The above-described fixing method of the heating element 400 can also be replaced with other forms. For example, the upper and lower ends of the heating element 400 can be respectively sleeved on the corresponding plug-in portions provided on the upper heat pipe 110 and the lower heat pipe 120; or one end of the heating element 400 can be positioned by sleeve and the other end can be positioned by plug-in; or the heating element 400 can also be configured to be installed into the module body 100 from one side in the vertical direction of the module body 100.

[0048] In one embodiment, the heating sleeve 410 of the heating element 400 can be made of materials and structures already available in the art, such as ceramic, while the heating element 420 is disposed on the heating sleeve 410, for example, it can be a heating film and / or heating wire attached to the outer wall of the heating sleeve 410. The heating element 420 can be connected to a control circuit via leads, and under the action of the control circuit, it generates heat, which is then transferred to the cigarette 500 via the heating sleeve 410. Those skilled in the art should understand that in some other embodiments, the heating element 400 can also adopt other structural forms, such as a sheet-like heating element 420, or heating using existing electromagnetic induction heating or infrared heating lamp methods; specific structures will not be listed here.

[0049] The support 200 is fixed between the smoke channel 131 and the air inlet channel 132. For example, in one embodiment, the support 200 can be disposed inside the heating jacket 410 near the end of the air inlet channel 132, which helps to ensure the sealing of the smoke channel 131 and the air inlet channel 132. In other embodiments, the support 200 can also be fixed to the module body 100. The support 200 can be fixed by interference fit, welding, bonding, threaded connection, etc.

[0050] The support 200 is provided with a connecting hole 220, which connects the cigarette channel 131 and the air inlet channel 132. Besides connecting the cigarette channel 131 and the air inlet channel 132 to meet the airflow requirements during normal smoking, the support 200 also serves to position the inserted cigarette 500. The end face of the support 200 facing the cigarette insertion port 140 forms a cigarette positioning surface, allowing the cigarette 500 to rest against and achieve axial positioning of the cigarette 500.

[0051] In one embodiment, six connecting holes 220 are provided, each with a fan-shaped cross-section, and are evenly distributed around the temperature probe 300. It should be noted that the number and shape of the connecting holes 220 can also be adjusted. For example, they can be smaller circular holes distributed on the support 200, and can be arranged in two or more layers along the radial direction of the cigarette channel 131; or, for example, the connecting holes 220 can also be a spiral structure.

[0052] Of course, when the heated non-combustible appliance adopts an upper air intake structure, the connecting hole 220 can also be omitted. To detect the temperature inside the cigarette 500, a temperature probe 300 is provided in the middle of the cigarette channel 131 in this invention. The temperature probe 300 is fixed on the support 200, and there is a gap between the temperature probe 300 and the channel wall of the cigarette channel 131. The temperature probe 300 protrudes from the support 200 and extends towards the cigarette insertion port 140. After the cigarette 500 is inserted into the cigarette channel 131, the temperature probe 300 can be inserted into the cigarette 500, thereby detecting the temperature inside the cigarette 500. In one embodiment, there is only one temperature probe 300, coaxially arranged with the cigarette channel 131, which has a simple structure and is easy to insert into the cigarette 500. In other embodiments, the number of temperature probes 300 may be two or more. Preferably, to achieve uniform temperature detection, the temperature probes 300 may be evenly distributed around the axis of the cigarette channel 131. For example, when there are two temperature probes 300, the two probes may be distributed with a circumferential interval of 180 degrees; when there are three temperature probes 300, the two probes may be distributed with a circumferential interval of 120 degrees. Since the probes need to be inserted into the cigarette 500, and the diameter of the cigarette 500 is limited, the degree of compression of the internal heat-not-combustible matrix is ​​also limited. Therefore, the number of temperature probes 300 may be only one.

[0053] In one specific embodiment, the end of the temperature probe 300 extending towards the cigarette insert 140 has a pointed portion 310, forming a conical structure, which facilitates the insertion of the temperature probe 300 into the cigarette 500. In some other embodiments, the tip of the temperature probe 300 may also be a cylindrical structure, a spherical structure, etc.

[0054] In one embodiment, the temperature probe 300 can be a thermocouple probe, including a housing and a hot junction installed inside the housing. It has a simple structure, small size, and is easy to insert into the cigarette stick 500 for convenient detection. Those skilled in the art will know that a thermocouple is a common temperature sensor that measures temperature using the thermoelectric effect. A thermocouple typically consists of two different conductors or semiconductors. When the temperatures of the two junctions are different, a thermoelectric electromotive force is generated in the circuit, thereby outputting a voltage signal. The specific structure will not be described in detail here.

[0055] In other embodiments, the temperature probe 300 can also be replaced with other temperature sensors, such as a resistive temperature sensor, which uses the property that the resistance of a pure metal material (such as platinum, copper, nickel, etc.) changes with temperature to measure temperature; another example is a semiconductor-based thermistor temperature sensor, which uses the property that the resistance of a semiconductor material changes with temperature to measure temperature; and yet another example is a semiconductor-based integrated circuit temperature sensor.

[0056] To facilitate the lead-out of the temperature probe 300 wire, in one embodiment, the support 200 is provided with a probe hole 210. The probe hole 210 extends through the support 200 along the axial direction of the cigarette channel 131. One end of the temperature probe 300 near the air inlet channel 132 extends out of the probe hole 210 to lead out the thermocouple wire. After the wire of the temperature probe 300 is led out of the support 200, it can be connected to the circuit outside the heating module through the air inlet channel 132, or it can pass radially through the support 200 and / or the module body 100, and then be connected to the circuit outside the heating module.

[0057] During operation, the cigarette 500 is inserted through the cigarette channel 131 on the module body 100. After contacting the temperature probe 300, the probe enters the interior of the cigarette 500 as the cigarette 500 is further inserted. When the user uses the heated non-combustible appliance, the heating element 400 generates heat to heat the cigarette 500. As those skilled in the art know, both the temperature probe 300 and the heating element are connected to a control device. The temperature probe 300 can detect the internal temperature of the cigarette 500. When the temperature reaches a set value, the control device stops the heating element 400 to prevent the cigarette 500 from overheating and burning or scalding the mouth. Because the temperature probe 300 is located inside the cigarette 500, it provides a more direct reflection of the cigarette 500's temperature compared to detecting the temperature of the heating element, is less susceptible to interference, and provides more intuitive detection results. When the user inhales, air enters the cigarette 500 through the air intake channel 132, passes through the connecting hole 220 on the support 200, and enters the cigarette 500 within the cigarette channel 131, forming aerogel smoke. Thanks to the detection by the temperature probe 300, the problem of the cigarette 500 burning, affecting the taste, or causing the aerogel smoke to scald the mouth can be avoided.

[0058] An embodiment of a heating non-combustible appliance of this utility model:

[0059] A heating non-combustible appliance includes a housing, a heating module, a power module, and a circuit board disposed within the housing. The structure of the heating module, the power module, and the circuit board can adopt existing technology. The heating module is the heating module in any of the above embodiments, which will not be described in detail here.

[0060] The above-described specific examples are for illustrative purposes only and are not intended to limit the scope of this invention. Those skilled in the art can make various simple deductions, modifications, or substitutions based on the concept of this invention.

Claims

1. A heating module for a heat-not-burn appliance, characterized in that: include: A module body, wherein the module body is provided with a cigarette channel for inserting cigarettes, and one end of the cigarette channel is provided with a cigarette insertion port; A support, the support being fixed to an end of the cigarette passage away from the cigarette insertion port; A temperature measuring probe, the temperature measuring probe is fixed on the support, there is a gap between the temperature measuring probe and the channel wall of the cigarette channel, the temperature measuring probe protrudes from the support and extends toward the cigarette insertion port; and a heating element, wherein the heating element is arranged at the periphery of the cigarette channel and is used for heating the cigarettes in the cigarette channel.

2. The heating module of the heating-without-burning device according to claim 1, characterized in that: The temperature measuring probe is coaxially arranged with the cigarette channel.

3. The heating module of the heating-without-burning device according to claim 1, characterized in that: The module body is also provided with an air inlet channel, which is connected to an end of the cigarette channel away from the cigarette insertion port. The support is arranged between the air inlet channel and the cigarette channel, and a connecting hole is provided on the support.

4. The heating module of the heating-without-combustion device according to claim 3, characterized in that: The communicating holes are evenly distributed around the temperature measuring probe.

5. The heating module of the heating-without-burning device according to claim 1, 2 or 3, characterized in that: The end of the temperature measuring probe extending toward the cigarette insertion port is provided with a tip.

6. The heating module of the heating-without-burning device according to claim 1, 2 or 3, characterized in that: The temperature measuring probe is a thermocouple probe.

7. The heating module of the heating-without-burning device according to claim 3, characterized in that: The support is provided with a probe hole, which penetrates the support along the axial direction of the cigarette passage. One end of the temperature measuring probe close to the air inlet passage extends out from the probe hole to lead out the thermocouple wire.

8. The heating module of the heating-without-combustion device according to claim 3, characterized in that: The heating element comprises a heating sleeve and a heating element. The heating sleeve is used to enclose the cigarette channel, and the heating element is arranged on the heating sleeve.

9. The heating module of the heating-without-combustion device according to claim 8, characterized in that: The support is arranged in the heating sleeve at one end close to the air inlet passage.

10. A heating without burning device, characterized in that: include: case; A heating module, a power module and a circuit board are arranged in the shell, and the heating module is the heating module according to any one of claims 1 to 9.

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