Cigarette heating appliance

Abstract

The invention discloses a cigarette heating appliance which comprises a shell and a support, the support is arranged in the shell so that an inner cavity of the shell can form a first cavity and a second cavity, the shell is provided with a first inlet and outlet communicated with the first cavity and a second inlet and outlet communicated with the second cavity, and the second cavity is communicated with the first cavity through an air flow channel. A heating resistor assembly is arranged in the first cavity and used for heating cigarettes entering the first cavity along the first inlet and outlet, an air outlet assembly and a one-way valve located in the air flow channel are arranged in the second cavity, and the one-way valve is used for allowing air guided by the air outlet assembly to flow into the first cavity along the air flow channel; in the preheating process, the air outlet assembly is controlled to operate to generate airflow to open the one-way valve, the airflow flows into the first cavity, flows in along one end of the cigarette and flows out along the other end of the cigarette, substances with small phase change temperature and large specific heat capacity in aerosol generation substances are brought out by the airflow and then enter the smoking process, and the phenomenon that the smoke temperature is too high can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of heated cigarette smoking articles, and in particular to a heated cigarette smoking article. Background Art

[0002] A heated cigarette device is a device that converts battery energy into heat energy, heats aerosol generator cigarettes within a specific time and provides specific heat energy, so that the aerosol generator produces aerosols. Compared with traditional cigarettes, heated cigarette aerosol generators contain more water-absorbing substances. When heated cigarette devices heat aerosol generator cigarettes, the heating temperature required to produce smoke is much lower than the temperature required for the combustion of traditional cigarettes, but it is still higher than the phase change temperature of water, which causes the water in the aerosol generator to absorb heat. When the user takes the first few puffs of the aerosol generator, the smoke temperature may be overheated.

[0003] Therefore, how to improve the overheating of flue gas temperature to enhance user experience. Summary of the invention

[0004] The object of the present invention is to provide a cigarette heating device which can improve the overheating of cigarette temperature and thus enhance the user experience.

[0005] To achieve the above-mentioned purpose, the present invention provides a cigarette heating device, including a shell and a bracket, the bracket is arranged in the shell so that the inner cavity of the shell forms a first chamber and a second chamber, the shell is provided with a first inlet and outlet connected to the first chamber, and a second inlet and outlet connected to the second chamber, and the second chamber is connected to the first chamber through an air flow channel, a heating resistor component is provided in the first chamber, which is used to heat the cigarette entering the first chamber along the first inlet and outlet, and the second chamber is provided with an air outlet component and a one-way valve located in the air flow channel, and the one-way valve is used to allow the gas guided by the air outlet component to flow along the air flow channel into the first chamber.

[0006] Preferably, a third chamber isolated from the first chamber and the second chamber is provided in the shell, and a battery and a circuit board assembly are provided in the third chamber. The circuit board assembly is connected to the battery, the air outlet assembly and the heating resistor assembly. A button capable of transmitting instructions to the circuit board assembly is provided on the shell, so that the circuit board assembly controls the battery energy to be transmitted to the air outlet assembly and the heating resistor assembly.

[0007] Preferably, an air hole is provided on the cavity wall of the first chamber, and the air flow channel includes a first flow segment and a second flow segment that are connected to each other, the first flow segment is connected to the air outlet of the air outlet component, and the second flow segment is connected to the air hole, so that the air outlet of the air outlet component is connected to the air hole.

[0008] Preferably, the one-way valve is located at one end of the second flow section connected to the first flow section, and the one-way valve comprises a fixed part and a movable part connected to each other, the fixed part is fixedly connected to the second flow section, and the movable part is made of elastic material and is sealed at the flow opening between the first flow section and the second flow section;

[0009] When the air outlet assembly is in operation, the gas flowing to the flow port can drive the movable portion to deform in a direction away from the first flow section, so that the gas flows into the first chamber in a unidirectional manner.

[0010] Preferably, a boss structure is provided at one end of the first chamber away from the first inlet and outlet, and the boss structure is used to form a first gap between the end of the cigarette located in the first chamber and the end of the first chamber away from the first inlet and outlet, and the air hole is connected to the first gap to allow gas to flow to the end of the cigarette located in the first chamber.

[0011] Preferably, a first sealing ring is provided at the first inlet and outlet, and the first sealing ring can have an interference fit with the cigarette in the first chamber.

[0012] Preferably, the air outlet component is specifically a fan, and an air inlet channel is provided in the second cavity, one end of the air inlet channel is connected to the second inlet and outlet, and the other end is connected to the air inlet of the fan;

[0013] The first flow segment is a conical horn hole structure, and the end of the first flow segment with a larger opening is connected to the air outlet of the fan, and the end of the first flow segment with a smaller opening is connected to the second flow segment.

[0014] Preferably, the air outlet component is specifically an air pump, which includes an air inlet pipe connected to the second inlet and outlet, and an air outlet pipe connected to the first flow section, and the air outlet pipe is interference fit with the first flow section.

[0015] Preferably, a sealing bracket is provided in the second chamber, and an air flow channel is opened in the sealing bracket.

[0016] Preferably, a cross-sectional dimension of the second flow section perpendicular to the central axis of the air hole is larger than a cross-sectional dimension of the air hole perpendicular to its own central axis.

[0017] With respect to the above-mentioned background technology, the cigarette heating device provided by the present invention includes a shell and a bracket. The bracket is arranged in the shell so that the inner cavity of the shell forms a first chamber and a second chamber. The shell is provided with a first inlet and outlet connected to the first chamber, and a second inlet and outlet connected to the second chamber, and the second chamber is connected to the first chamber through an air flow channel. A heating resistor assembly is provided in the first chamber for heating the cigarette entering the first chamber along the first inlet and outlet. An air outlet assembly and a one-way valve located in the air flow channel are provided in the second chamber. The one-way valve is used to allow the gas guided by the air outlet assembly to flow along the air flow channel into the first chamber.

[0018] Specifically, when the heating cigarette device is in use, the heating resistor component can heat the cigarette in the first chamber, so that the aerosol generating cigarette produces aerosol. This process is divided into a preheating process and a suction process. The preheating process is a process in which the heating resistor component transfers heat to the cigarette to accumulate heat and realize the phase change of the aerosol generating substance. In this process, the air flow is generated by controlling the operation of the air outlet component to open the one-way valve. The air flow flows into the first chamber, flows in along one end of the cigarette and flows out along the other end. The substances with low phase change temperature and large specific heat capacity in the aerosol generating substance will be carried out by the air flow and then enter the suction process. Such a setting can reduce the air flow temperature when the user inhales, improve the phenomenon of overheating of the smoke temperature, and enhance the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0020] Figure 1 A schematic diagram of the structure of a cigarette heating device provided in an embodiment of the present invention;

[0021] Figure 2 A cross-sectional view of a cigarette heating device provided by an embodiment of the present invention;

[0022] Figure 3 A cross-sectional view of the cigarette heating device provided by an embodiment of the present invention from another perspective;

[0023] Figure 4 A schematic diagram of the structure of a one-way valve provided in an embodiment of the present invention;

[0024] Figure 5 A schematic structural diagram of a boss structure provided by an embodiment of the present invention;

[0025] Figure 6 A cross-sectional view of an air outlet component provided in an embodiment of the present invention when the air outlet component is an air pump;

[0026] Figure 7 A cross-sectional view from another perspective when the air outlet component provided in the embodiment of the present invention is an air pump.

[0027] in:

[0028] 100-shell, 110-first chamber, 111-heating resistor assembly, 112-air hole, 113-boss structure, 120-second chamber, 1211-fan, 1212-air pump, 1213-inlet pipe, 122-one-way valve, 1221-fixed part, 1222-movable part, 130-first inlet and outlet, 131-first sealing ring, 140-second inlet and outlet, 151-first flow section, 152-second flow section, 160-third chamber, 161-battery, 162-circuit board assembly, 163-button, 170-decorative cover, 210-upper bracket, 220-lower bracket, 230-sealed bracket, 300-cigarette. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] In order to enable those skilled in the art to better understand the scheme of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0031] In the description of the present invention, it is necessary to understand that the terms "inside", "outside", "upper", "lower", "top" and "bottom" etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the position or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as a limitation of the present invention.

[0032] The object of the present invention is to provide a cigarette heating device which can improve the overheating of cigarette temperature and thus enhance the user experience.

[0033] See also Figure 1 and Figure 2To achieve the above-mentioned purpose, the present invention provides a cigarette heating device, including a shell 100 and a bracket, the bracket is arranged in the shell 100 so that the inner cavity of the shell 100 forms a first chamber 110 and a second chamber 120, the shell 100 is provided with a first inlet and outlet 130 connected to the first chamber 110, and a second inlet and outlet 140 connected to the second chamber 120, and the second chamber 120 is connected to the first chamber 110 through an air flow channel, the first chamber 110 is provided with a heating resistor component 111, which is used to heat the cigarette 300 entering the first chamber 110 along the first inlet and outlet 130, and the second chamber 120 is provided with an air outlet component and a one-way valve 122 located in the air flow channel, and the one-way valve 122 is used to allow the gas guided by the air outlet component to flow into the first chamber along the air flow channel.

[0034] The bracket includes an upper bracket 210, a lower bracket 220, and a sealing bracket 230. The upper bracket 210 is located at the upper part of the shell 100, and the lower bracket 220 is located at the lower part of the shell 100. The upper bracket 210 forms an adjacent first chamber 110 and a second chamber 120. The first chamber 110 has an independent space. The heating resistor component 111 is arranged at the bottom of the first chamber 110. The sealing bracket 230 is provided through the second chamber 120, so that the bottom of the sealing bracket 230 is adjacent to the lower bracket 220. A third cavity is formed by enclosing, that is, a third cavity 160 isolated from the first cavity 110 and the second cavity 120 is formed in the shell 100; an air hole 112 is provided on the cavity wall of the first cavity 110, and the above-mentioned air flow channel is opened in the sealing bracket 230, and the air flow channel includes a first flow segment 151 and a second flow segment 152 that are connected to each other, the first flow segment 151 is connected to the air outlet of the air outlet component, and the second flow segment 152 is connected to the air hole 112, so that the air outlet of the air outlet component is connected to the air hole 112.

[0035] When the heating cigarette device is in use, the heating resistor component 111 can heat the cigarette 300 in the first chamber 110, so that the aerosol generating cigarette 300 generates an aerosol. This process is divided into a preheating process and a suction process. The preheating process is a process in which the heating resistor component 111 transfers heat to the cigarette 300 to accumulate heat and realize the phase change of the aerosol generating material. In this process, the air flow is generated by controlling the operation of the air outlet component to open the one-way valve 122. The air flow flows into the first cavity, flows in along one end of the cigarette 300 and flows out along the other end. The substances with a lower phase change temperature and a larger specific heat capacity in the aerosol generating material will be carried out by the air flow and then enter the suction process. Such a setting can reduce the air flow temperature when the user inhales, improve the overheating phenomenon of the smoke temperature, and thus improve the user experience.

[0036] Furthermore, a first sealing ring 131 is provided at the first inlet and outlet 130, and is compressed by a decorative cover 170 installed on the top of the upper bracket 210 to fix the position of the first sealing ring 131. The first sealing ring 131 can be interference fit with the cigarette 300 located in the first chamber 110, so that after the cigarette 300 enters the first chamber 110 along the first inlet and outlet 130, the outer periphery of the cigarette 300 and the first inlet and outlet 130 are sealed by the first sealing ring 131 to prevent aerosol from flowing out along the outer periphery of the cigarette 300 and the first inlet and outlet 130. A battery 161 and a circuit board assembly 162 are provided in the third chamber 160. The circuit board assembly 162 is connected to the battery 161, the air outlet assembly and the heating resistor assembly 111. A button 163 capable of transmitting instructions to the circuit board assembly 162 is provided on the shell 100, so that the circuit board assembly 162 controls the energy of the battery 161 to be transmitted to the air outlet assembly and the heating resistor assembly 111.

[0037] In one feasible embodiment, the operation time of the air outlet component can be set to half of the preheating time. For example, when the preheating time is 1 minute, the operation start time of the air outlet component can be set to the tenth second after the heating resistor component 111 starts to operate, and the operation end time of the air outlet component can be set to the fortieth second after the heating resistor component 111 starts to operate. By selecting the middle period of the preheating time, it can be ensured that the substances with low phase change temperature and large specific heat capacity in the aerosol generator will be carried away by the airflow. At the same time, the operation frequency (or rate) of the air outlet component can be set according to the required gas flow rate to ensure that within the operation time of the air outlet component, there is sufficient airflow to carry away the substances with low phase change temperature and large specific heat capacity in the aerosol generator.

[0038] It should be noted that the time period of the operation of the air outlet component can be divided into three equal stages, namely the first stage, the second stage and the third stage. In the first stage, the air outlet component operates at a first frequency, in the second stage, the air outlet component operates at a second frequency, and in the third stage, the air outlet component operates at a third frequency, the third frequency is 1.5 times the second frequency, and the third frequency is 2 times the first frequency, so that the air output of the air outlet component and the temperature of the cigarette 300 show a positive correlation trend, that is, as the heating time of the heating resistor component 111 increases, the air output of the air outlet component increases, which can avoid the air outlet component from always running at the third frequency, saving energy consumption of the air outlet component, and at the same time, the air outlet component can effectively bring out substances with low phase change temperature and large specific heat capacity in the aerosol generator.

[0039] See also Figure 3During the preheating process, the circuit board assembly 162 receives the transmission instruction of the button 163, controls the battery 161 to transmit energy to the air outlet assembly and the heating resistor assembly 111, and during this process, the heating resistor assembly 111 converts electrical energy into thermal energy, and heats the cigarette 300 through the heating cone of the heating resistor assembly 111 that extends into the first cavity and is inserted into the cigarette 300. At the same time, the air outlet assembly starts to operate after being powered on, and the operation of the air outlet assembly forms a negative pressure environment at the inlet of the air outlet assembly, which is used for the gas to flow along the second inlet and outlet 14 0 enters the second chamber 120, and is transported to the first flow segment 151 under the pressurized action of the air outlet component and opens the one-way valve 122, and then flows along the second flow segment 152 to the first chamber 110. Under the sealing action of the first sealing ring 131, the gas can only enter the cigarette 300 along one end of the cigarette 300 located in the first chamber 110 and flow to the other end of the cigarette 300 located outside the first chamber 110, so that the substance with a lower phase change temperature and a larger specific heat capacity (for example, water) in the aerosol generator will be brought out by the airflow.

[0040] See also Figure 4 In one feasible embodiment, the one-way valve 122 is located at one end of the second flow section 152 connected to the first flow section 151. The one-way valve 122 includes a fixed portion 1221 and a movable portion 1222 connected to each other. The fixed portion 1221 is fixedly connected to the second flow section 152. The fixed portion 1221 can adopt a circular ring structure, and the movable portion 1222 can adopt a tongue-shaped structure protruding from the inner circle of the circular ring structure. The tongue-shaped structure includes a connecting portion and a sealing portion. The sealing portion is a circular or elliptical structure. The connecting portion is used to connect the sealing portion and the movable portion. The movable part 1222 is made of elastic material (such as silicone, rubber, etc.) and is sealed at the flow opening between the first flow segment 151 and the second flow segment 152, that is, the cross-sectional size of the sealing part is larger than the cross-sectional size at the flow opening, so that one side of the sealing part is attached to the end face of the flow opening to achieve sealing of the flow opening. When the air outlet component is running, the gas flowing to the flow opening can drive the movable part 1222 to deform in the direction away from the first flow segment 151, so that the gas can flow unidirectionally into the first chamber 110.

[0041] Furthermore, the overall structure of the second flow segment 152 can be set to a cylindrical structure, the first circular bottom surface of the cylindrical structure is the end surface of the above-mentioned flow port, and the second circular bottom surface of the cylindrical structure is the end surface of the above-mentioned air hole 112 facing one end of the second flow segment 152. The above-mentioned one-way valve 122 is set to be located in the second flow segment 152 and fits the first circular bottom surface, so that when the air outlet component is running, the gas flowing to the flow port can drive the movable part 1222 to deform toward the second circular bottom surface, so that the gas flows along the first flow segment 151, the second flow segment 152, and the air hole 112 to the first chamber 110, wherein the length of the second flow segment 152 in its own axial direction can be set to 0.6-0.9 times the diameter of the sealing part, so that during the deformation of the sealing part, the end of the sealing part away from the connecting part can contact the above-mentioned second circular bottom surface to form support for the sealing part and avoid excessive deformation of the sealing part affecting the recovery of the sealing part.

[0042] It can be understood that when the sealing portion abuts against the second circular bottom surface, the angle between the end surface of the sealing portion and the second circular bottom surface is preferably 45°, the sealing portion does not block the air hole 112, and the surface of the sealing portion guides the gas to facilitate the gas to enter the air hole 112. Figure 3 Taking the orientation in as an example, the bottom of the pore 112 is located at a height higher than the top of the sealing portion when the sealing portion abuts against the second circular bottom surface, and the cross-sectional dimension of the second flow segment 152 perpendicular to the central axis of the pore 112 is larger than the cross-sectional dimension of the pore 112 perpendicular to its own central axis, so as to ensure the flow rate of the gas at the pore 112 and improve the effect of carrying away substances with lower phase change temperature and larger specific heat capacity in the aerosol generator.

[0043] See also Figure 5 In one feasible embodiment, a boss structure 113 is provided at one end of the first chamber 110 away from the first inlet and outlet 130, and the boss structure 113 is evenly distributed on the circumference of the end surface of the first chamber 110 away from the first inlet and outlet 130, so that the boss structure 113 can evenly support the cigarette 300, and the boss structure 113 is used to form a first gap between the end of the cigarette 300 located in the first chamber 110 and the end of the first chamber 110 away from the first inlet and outlet 130, and the air hole 112 is connected to the first gap to allow gas to flow to the end of the cigarette 300 located in the first chamber 110. The first gap can serve as a buffer area after the airflow flows out of the air hole 112, so that the airflow can be mixed in the first gap and evenly enter the end of the cigarette 300 located in the first chamber 110, thereby avoiding uneven airflow in the cigarette 300 causing some substances with a low phase change temperature and a large specific heat capacity to remain.

[0044] In one feasible embodiment, the air outlet component is specifically a fan 1211, and an air inlet channel is provided in the second cavity, one end of the air inlet channel is connected to the second inlet and outlet 140, and the other end is connected to the air inlet of the fan 1211, the first flow segment 151 is a conical horn hole structure, and the end of the first flow segment 151 with a larger opening is connected to the air outlet of the fan 1211, and the end of the first flow segment 151 with a smaller opening is connected to the second flow segment 152; the energy output of the battery 161 is distributed and managed through the circuit board assembly 162, driving the fan 1211 to rotate to generate air flow, so as to take away the substances with a lower phase change temperature and a larger specific heat capacity in the aerosol generated during the preheating process, which can reduce the air flow temperature when the user inhales, improve the overheating phenomenon of the smoke temperature, and enhance the user experience.

[0045] See also Figure 6 and Figure 7 In one feasible embodiment, the air outlet component is specifically an air pump 1212, and the air pump 1212 includes an air inlet pipe 1213 connected to the second inlet and outlet 140, and an air outlet pipe connected to the first flow section 151. The air outlet pipe and the first flow section 151 are interference fit, and the air inlet of the air pump 1212 is aligned with the second inlet and outlet 140 through the air inlet pipe 1213. Through the combination of the one-way valve 122 and the air flow channel, air flow is generated when the air pump 1212 is running to carry away substances with a lower phase change temperature and a larger specific heat capacity in the aerosol generated during the preheating process. It can also reduce the air flow temperature when the user inhales, improve the overheating phenomenon of the smoke temperature, and improve the user experience.

[0046] It should be noted that, in this specification, relational terms such as first and second are merely used to distinguish one entity from other entities, but do not necessarily require or imply any actual relationship or order between these entities.

[0047] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0048] The principles and implementation methods of the present invention are described in this article using specific examples. The description of the above embodiments is only used to help understand the method and core ideas of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made to the present invention without departing from the principles of the present invention, and these improvements and modifications also fall within the scope of protection of the present invention.

Claims

1. A cigarette heating device, characterized in that: The invention comprises a shell (100) and a bracket, wherein the bracket is arranged in the shell (100) so that the inner cavity of the shell (100) forms a first chamber (110) and a second chamber (120), the shell (100) is provided with a first inlet and outlet (130) connected to the first chamber (110), and a second inlet and outlet (140) connected to the second chamber (120), and the second chamber (120) is connected to the first chamber (110) through an air flow channel, the first chamber (110) is provided with a heating resistor component (111) for heating a cigarette (300) entering the first chamber (110) along the first inlet and outlet (130), the second chamber (120) is provided with an air outlet component and a one-way valve (122) located in the air flow channel, and the one-way valve (122) is used to allow the gas guided by the air outlet component to flow along the air flow channel into the first chamber.

2. The cigarette heating device according to claim 1, characterized in that: The housing (100) is further provided with a third chamber (160) isolated from the first chamber (110) and the second chamber (120); the third chamber (160) is provided with a battery (161) and a circuit board assembly (162); the circuit board assembly (162) is connected to the battery (161), the air outlet assembly and the heating resistor assembly (111); the housing (100) is provided with a button (163) capable of transmitting instructions to the circuit board assembly (162) so that the circuit board assembly (162) controls the battery (161) to transmit energy to the air outlet assembly and the heating resistor assembly (111).

3. The heating cigarette device according to claim 1, characterized in that: An air hole (112) is provided on the cavity wall of the first chamber (110), and the air flow channel comprises a first flow section (151) and a second flow section (152) which are connected to each other, the first flow section (151) is connected to the air outlet of the air outlet component, and the second flow section (152) is connected to the air hole (112), so that the air outlet of the air outlet component is connected to the air hole (112).

4. The cigarette heating device according to claim 3, characterized in that: The one-way valve (122) is located at one end of the second flow section (152) connected to the first flow section (151), and the one-way valve (122) comprises a fixed portion (1221) and a movable portion (1222) connected to each other, the fixed portion (1221) being fixedly connected to the second flow section (152), and the movable portion (1222) being made of elastic material and sealing the flow opening between the first flow section (151) and the second flow section (152); When the air outlet assembly is in operation, the gas flowing to the flow port can drive the movable portion (1222) to deform in a direction away from the first flow section (151), so that the gas flows unidirectionally into the first chamber (110).

5. The heating cigarette device according to claim 3, characterized in that: A boss structure (113) is provided at one end of the first chamber (110) away from the first inlet and outlet (130), and the boss structure (113) is used to form a first gap between the end of the cigarette (300) located in the first chamber (110) and the end of the first chamber (110) away from the first inlet and outlet (130), and the air hole (112) is connected to the first gap to allow gas to flow to the end of the cigarette (300) located in the first chamber (110).

6. The heating cigarette device according to claim 3, characterized in that: A first sealing ring (131) is provided at the first inlet and outlet (130), and the first sealing ring (131) is capable of interference fitting with the cigarette (300) located in the first chamber (110).

7. The heating cigarette device according to claim 3, characterized in that: The air outlet component is specifically a fan (1211), an air inlet channel is provided in the second cavity, one end of the air inlet channel is connected to the second inlet and outlet (140), and the other end is connected to the air inlet of the fan (1211); The first flow segment (151) is a conical horn hole structure, and the end of the first flow segment (151) with a larger opening is connected to the air outlet of the fan (1211), and the end of the first flow segment (151) with a smaller opening is connected to the second flow segment (152).

8. The cigarette heating device according to any one of claims 3 to 7, characterized in that: The air outlet component is specifically an air pump (1212), and the air pump (1212) comprises an air inlet pipe (1213) connected to the second inlet and outlet (140), and an air outlet pipe connected to the first flow section (151), and the air outlet pipe is interference fit with the first flow section (151).

9. The cigarette heating device according to any one of claims 3 to 7, characterized in that: A sealing bracket (230) is provided in the second chamber (120), and the air flow channel is provided in the sealing bracket (230).

10. The cigarette heating device according to any one of claims 3 to 7, characterized in that: The cross-sectional dimension of the second flow section (152) perpendicular to the central axis of the air hole (112) is greater than the cross-sectional dimension of the air hole (112) perpendicular to its own central axis.

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