Atomization device

Abstract

An atomizing device includes an atomizer and a cigarette cartridge separated in a non-working state, the atomizer includes a needle tube structure and a porous body, one end of the needle tube structure has a needle tip, the other end of the needle tube structure is inserted into the porous body, a heating circuit is provided on the porous body, the cigarette cartridge is sealed with atomized liquid, the cigarette cartridge has a puncturable portion, when the atomizer and the cigarette cartridge are assembled together, the puncturable portion of the cigarette cartridge is punctured by the tip of the needle tube structure, so that the needle tube structure enters the cigarette cartridge, when the user inhales from the atomizer, the atomized liquid in the cigarette cartridge is transported to the porous body through the needle tube structure under the action of the air pressure difference caused by the inhalation, and then heated and atomized by the heating circuit for the user to inhale. The atomizing device of the present invention has a simple structure, reduces costs, and improves the user experience.

Description

Technical Field

[0001] The present invention relates to the technical field of electronic cigarettes, and in particular to an atomization device. Background Art

[0002] Traditional electronic cigarette atomizers include two types: an integrated design of the atomizing liquid container, atomizing core, and heating structure, and a split design. The split design includes a design in which the atomizing liquid container and the atomizing core are integrated and separated from the heating structure, and a design in which the heating structure and the atomizing core are integrated and separated from the atomizing liquid container. For the first split design, such as CN110584222A, the sealed oil storage unit (i.e., the atomizing liquid container) and the oil guide body (i.e., the atomizing core) are an integrated structure, and the oil guide body is penetrated along its axial direction with an insertion hole for the heating body to be inserted, and the insertion hole is connected to the gap. After the heating body is inserted into the insertion hole, the heating body punctures the sealed oil storage unit and releases the smoke oil therein into the oil guide body. For the second split design, such as CN105342010A, the liquid smoke cup in the split cigarette cartridge is a closed structure, and an air flow channel is opened along the axial direction of the liquid smoke cup. When in use, the atomizer core is inserted into the bottom of the liquid smoke cup, and the outer edge of the ceramic liquid guide core pierces the inner wall of the liquid smoke cup. The liquid smoke penetrates into the ceramic liquid guide core, and the ceramic liquid guide core absorbs and stores the liquid smoke. The atomizer heating element is attached to the inner wall of the ceramic liquid guide core, and air enters the atomizer core from the air inlet. After the power is turned on, the atomizer heating element conducts electricity, heats and evaporates the liquid smoke in the ceramic liquid guide core, and generates smoke, which flows through the airway for the user to inhale. The two existing split structures have the following disadvantages: the first type of split structure, as a disposable cartridge, contains an atomizer core, which will lead to excessively high costs for the cartridge; the second type of split structure, as a disposable cartridge, has a larger smoke liquid cup designed as a structure, which uses more materials and requires an air flow channel in the axial direction, making it more complicated to manufacture, resulting in excessively high costs. The atomizer core of the existing split structure completely relies on the capillary action of the atomizer core to absorb the smoke liquid in the atomizer liquid container. After the user assembles the split structure, the smoke liquid cannot be quickly released into the atomizer core during the initial period of use, and the heating structure cannot fully atomize the smoke liquid, affecting the user experience. In addition, the structure of the existing cartridge makes it difficult to achieve sealing, and it is easy to leak oil during intermittent use, which will also affect the user experience.

[0003] The disclosure of the above background technology content is only used to assist in understanding the inventive concept and technical solution of the present invention. It does not necessarily belong to the prior art of this patent application. In the absence of clear evidence that the above content has been disclosed on the filing date of this patent application, the above background technology should not be used to evaluate the novelty and creativity of the present application. Summary of the invention

[0004] The main purpose of the present invention is to overcome at least one of the above-mentioned defects of the prior art and provide an atomizing device.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] An atomization device comprises an atomizer and a cigarette cartridge which are separated in a non-working state, the atomizer comprising a needle tube structure and a porous body, one end of the needle tube structure is provided with a needle tip, the other end of the needle tube structure is inserted into the porous body, a heating circuit is arranged on the porous body, atomization liquid is sealed in the cigarette cartridge, the cigarette cartridge has a puncturable portion, when the atomizer and the cigarette cartridge are assembled together, the puncturable portion of the cigarette cartridge is punctured by the tip of the needle tube structure, so that the needle tube structure enters the cigarette cartridge, when a user inhales from the atomizer, the atomization liquid in the cigarette cartridge is transported to the porous body through the needle tube structure under the action of the air pressure difference caused by the inhalation, and then heated and atomized by the heating circuit for the user to inhale.

[0007] Further:

[0008] The heating circuit is arranged on the porous atomizing core rod in a surface winding, internal embedding or surface silk-screening manner.

[0009] The pierceable portion is a rubber cover or a film structure. Preferably, the film structure is an aluminum foil or a Tetra Pak composite paper film.

[0010] The porous body is also provided with a temperature measuring circuit, which is used to sense the temperature of the heating circuit and transmit the temperature signal to the micro-control circuit on the atomizer. The micro-control circuit adjusts the heating power of the heating circuit according to the temperature signal to maintain a suitable atomization temperature.

[0011] It also includes an air pressure sensor arranged in the space where the porous body is located, and the air pressure sensor is used to sense the air pressure signal in the space where the porous body is located, and transmit the air pressure signal to the micro-control circuit on the atomizer. The micro-control circuit controls the heating circuit to stop heating and producing steam when it is determined that the atomized liquid is exhausted based on the air pressure signal.

[0012] It also includes an airflow sensor arranged in the space where the porous body is located, and the airflow sensor is used to sense the airflow signal in the space where the porous body is located, and transmit the airflow signal to the micro-control circuit on the atomizer. The micro-control circuit controls the heating circuit to stop heating and producing steam when it is determined that the atomized liquid is exhausted based on the airflow signal.

[0013] The porous body and the needle tube structure are bonded with an adhesive or connected in a nested manner.

[0014] The interior of the atomizer is divided into two isolated spaces by a partition structure, one end of the needle tube structure is located in one of the spaces, and the porous body is located in the other space. Preferably, the other space is provided with a vent for adjusting the air pressure difference, and the vent is connected to the outside and has an adjustable opening size.

[0015] The cigarette cartridge is in the shape of an elongated tube, preferably a cylindrical tube.

[0016] The one end of the needle tube structure is a structure whose diameter gradually decreases toward the needle tip.

[0017] The present invention has the following beneficial effects:

[0018] According to the split-structure atomization device of the present invention, its atomizer includes a needle tube structure and a porous body, one end of the needle tube structure has a needle tip, the other end of the needle tube structure is inserted into the porous body, a heating circuit is arranged on the porous body, and the cigarette cartridge sealed with atomized liquid has a puncturable portion. When the atomizer and the cigarette cartridge are assembled together, the puncturable portion of the cigarette cartridge is punctured by the tip of the needle tube structure, so that the needle tube structure can enter the cigarette cartridge. When the user inhales from the atomizer, the atomized liquid in the cigarette cartridge is transported to the porous body through the needle tube structure under the action of the air pressure difference caused by inhalation, and then heated and atomized by the heating circuit for the user to inhale. Therefore, after the user assembles the atomizer and the cigarette cartridge together, he can quickly promote the transmission and atomization of the cigarette oil by inhalation, quickly realize the inhalation of atomized cigarette oil, and improve the user experience. Moreover, compared with the traditional split structure, the cigarette cartridge of the present invention does not include an atomizing core, the overall structure of the cigarette cartridge is smaller, and there is no need to open an airflow channel on the cigarette cartridge, the structure is simplified, and the production is also simpler, so that the cigarette cartridge as a disposable product can effectively reduce costs, and at the same time, it is also more conducive to ensuring the sealing of the cigarette cartridge, avoiding the impact of oil leakage on the user experience. In addition, compared with the traditional split structure, since the shell of the cigarette cartridge of the present invention does not need to be formed into a shape with a specific function, the cigarette cartridge of the present invention can be made of environmentally friendly materials such as paper, aluminum plastic, etc., which is convenient for recycling and is more environmentally friendly than cigarette cartridges made of plastic and metal.

[0019] In a preferred solution, a temperature measuring circuit is provided on the porous body, the temperature measuring circuit senses the temperature of the heating circuit and transmits the temperature signal to the microcontroller circuit on the atomizer, and the microcontroller circuit adjusts the heating power of the heating circuit according to the temperature signal to maintain a suitable atomization temperature, thereby further improving the atomization energy efficiency and safety, and also helping to further enhance the user experience.

[0020] In another preferred solution, an air pressure sensor is arranged in the space where the porous body is located, the air pressure sensor senses the air pressure signal in the space where the porous body is located, and transmits the air pressure signal to the micro-control circuit on the atomizer, and the micro-control circuit controls the heating circuit to stop heating and producing steam when the atomized liquid is exhausted according to the air pressure signal. In this way, the energy consumption efficiency and safety of atomization are further improved, and it is also helpful to further enhance the user experience. Alternatively, the above effect can also be obtained by setting an airflow sensor to detect the airflow.

[0021] The temperature measurement circuit can be used together with the air pressure sensor / air flow sensor to improve the reliability of detection.

[0022] In another preferred embodiment, the interior of the atomizer is divided into two isolated spaces by a partition structure, one end of the needle tube structure is located in one of the spaces, and the porous body is located in the other space. The air pressure difference between the two spaces can be adjusted by adjusting the opening size of the vent of the other space. At the same time, the steam aerosol form is adjusted by the inflow of external cold air to better meet the atomization needs of different users' tastes.

[0023] In another preferred embodiment, the insertion end of the needle tube structure is made into a structure with a diameter that gradually decreases toward the needle tip, thereby increasing the sealing between the needle tube and the cigarette cartridge after the cigarette cartridge is inserted into the atomizer, thereby better preventing the leakage of cigarette oil during use and improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the structure of an atomization device according to an embodiment of the present invention when the atomizer and the cigarette cartridge are separated.

[0025] Figure 2 This is a schematic diagram of the structure of an atomization device according to an embodiment of the present invention after the atomizer and the cigarette cartridge are assembled. DETAILED DESCRIPTION

[0026] The following is a detailed description of the embodiments of the present invention. It should be emphasized that the following description is only exemplary and is not intended to limit the scope and application of the present invention.

[0027] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element. In addition, connection can be used for fixing as well as for coupling or communication.

[0028] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0029] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0030] See also Figure 1 and Figure 2 , an embodiment of the present invention provides an atomization device, including an atomizer and a cigarette cartridge separated in a non-working state, the atomizer including a needle tube structure 201 and a porous body 202, one end of the needle tube structure 201 has a needle tip, the other end of the needle tube structure 201 is inserted into the porous body 202, a heating circuit 203 is arranged on the porous body 202, the cigarette cartridge is sealed with atomized liquid, the cigarette cartridge includes a shell 101 and a puncturable portion 103, when the atomizer and the cigarette cartridge are assembled together, the puncturable portion 103 of the cigarette cartridge is punctured by the tip of the needle tube structure 201, so that the needle tube structure 201 enters the cigarette cartridge, when the user inhales from the atomizer, the atomized liquid 102 in the cigarette cartridge is transported to the porous body 202 through the needle tube structure 201 under the action of the air pressure difference caused by the inhalation, and then heated and atomized by the heating circuit 203 for the user to inhale.

[0031] In different embodiments, the heating circuit 203 can be arranged on the porous atomizing core rod in various ways such as surface winding, internal embedding or surface screen printing.

[0032] In different embodiments, the pierceable portion 103 may be a rubber cover or a film structure. Preferably, but not limiting, the film structure is an aluminum foil or a Tetra Pak composite paper film.

[0033] In a preferred embodiment, a temperature measuring circuit 204 is also provided on the porous body 202, and the temperature measuring circuit 204 is used to sense the temperature of the heating circuit 203 and transmit the temperature signal to the micro-control circuit 205 on the atomizer, and the micro-control circuit 205 adjusts the heating power of the heating circuit 203 according to the temperature signal to maintain a suitable atomization temperature. This embodiment can improve the energy efficiency and safety of atomization, and also help to further enhance the user experience.

[0034] In a preferred embodiment, the atomization device also includes an air pressure sensor 208 arranged in the space where the porous body 202 is located. The air pressure sensor 208 is used to sense the air pressure signal in the space where the porous body 202 is located, and transmit the air pressure signal to the micro-control circuit 205 on the atomizer. The micro-control circuit 205 controls the heating circuit 203 to stop heating and producing steam when it is determined that the atomized liquid is exhausted based on the air pressure signal.

[0035] In another preferred embodiment, the atomization device also includes an airflow sensor arranged in the space where the porous body 202 is located, and the airflow sensor is used to sense the airflow signal in the space where the porous body 202 is located, and transmit the airflow signal to the microcontroller circuit 205 on the atomizer. The microcontroller circuit 205 controls the heating circuit 203 to stop heating and producing steam when it is determined that the atomized liquid is exhausted based on the airflow signal.

[0036] The above embodiments can also improve the energy efficiency and safety of atomization, and also help to further enhance the user experience.

[0037] The temperature measurement circuit 204 and the air pressure sensor 208 / air flow sensor can be used together to improve the reliability of detection.

[0038] In different embodiments, the porous body 202 and the needle tube structure 201 can be connected in various ways such as bonding with an adhesive, nesting, etc.

[0039] In a preferred embodiment, the interior of the atomizer is divided into two isolated spaces a and b by a partition structure 207, and one end of the needle tube structure 201 is located in one of the spaces a, and space a is also called a cartridge insertion chamber, and the porous body 202 is located in another space b, and space b is also called an atomization chamber, which is connected to the mouthpiece structure 211. Both spaces a and b can be surrounded by the outer shell 206 of the atomizer. More preferably, the other space b is provided with a vent 209 for adjusting the air pressure difference, and the vent 209 is connected to the outside world and is an adjustable opening size structure. According to this embodiment, by adjusting the opening size of the vent 209 of the other space, the air pressure difference between the two spaces can be adjusted. At the same time, the steam aerosol form is adjusted by the inflow of external cold air, so as to better meet the atomization needs of adapting to the taste of different users.

[0040] In a preferred embodiment, the cigarette cartridge is in the shape of an elongated tube, more preferably a cylindrical tube.

[0041] In a preferred embodiment, the one end of the needle tube structure 201 is a structure with a diameter gradually decreasing toward the needle tip. The insertion end of the needle tube structure 201 is a structure with a diameter gradually decreasing toward the needle tip, which can increase the sealing of the needle tube and the cigarette cartridge after the cigarette cartridge is inserted into the atomizer, thereby better preventing the leakage of cigarette oil during use and improving the user experience.

[0042] Specific embodiments of the present invention are further described below.

[0043] The atomization device includes an atomizer and a cigarette cartridge. The cigarette cartridge filled with atomizing liquid and the atomizer are two independent structures that can be assembled together and separated in a non-working state.

[0044] The atomizer includes a heating component with a needle tube structure. The material of the needle tube structure is a heat-resistant material such as metal and ceramic. One end of the needle tube structure has a needle tip, and the other end of the needle tube structure is provided with a porous body. The material of the porous body can be porous ceramic, or porous metal or other porous body materials. Two groups of circuits, a heating circuit and a temperature measurement circuit, are arranged on the porous body. There is no restriction on the arrangement method and form of the circuits, which can be surface winding, embedded, or surface silk-screened. There is no restriction on the connection method between the porous body and the needle tube, and an adhesive can be used, or it can be nested. Other auxiliary components of the atomizer will be described in the scheme example below.

[0045] The cartridge containing the atomized liquid is sealed in a non-working state and isolated from the outside world. The shell of the cartridge forms a closed container. The shell material of the cartridge can be a plastic material that can undergo plastic deformation. The cartridge has a disposable puncture site that can be destroyed by the needle tip of the needle tube at a specific location. The needle tube structure punctures the puncture site and enters the cartridge, combining with the structure of the cartridge to form a working state.

[0046] When the heating component is working, the needle tube structure enters the cartridge to absorb and transport the atomized liquid. The heating circuit on the porous body generates heat through the ohmic effect of the current, heating the atomized liquid to form steam for the user to inhale. The power of the movement of the atomized liquid in the cartridge in the needle tube structure comes from the pressure difference between the two spaces when the user inhales; the power of the movement in the porous body mainly comes from capillary action. In the working state, except for the heater structure, the environment inside the cartridge is still isolated from the outside world, and no material exchange occurs.

[0047] In a specific embodiment, the cigarette cartridge can be a cylindrical tube structure, the material of the shell 101 can be an aluminum-plastic film or a Tetra Pak packaging material, and the atomized liquid 102 is contained inside. A destructible film structure (puncturable portion 103) is provided at one end of the cigarette cartridge, which allows the needle tube structure 201 of the heater to be destroyed and inserted into the interior of the cigarette cartridge. After the destructible film structure is destroyed and inserted by the needle tube structure 201, it will fit tightly with the outer wall of the needle tube structure 201 to form a seal, preventing the smoke liquid from leaking from the gap between the two. One end of the needle tube structure 201 of the heating component is a pointed tube structure, which is used to destroy the film structure of the cigarette cartridge and insert it into the interior of the cigarette cartridge, and the other end is provided with a porous body 202. A heating circuit 203 and a temperature measurement circuit 204 are provided on the porous body 202, and the heating circuit 203 and the temperature measurement circuit 204 are controlled by a microcontroller circuit 205 through leads.

[0048] In another specific embodiment, the housing 206 of the atomizer is divided into two spaces by a partition structure 207 disposed in the middle thereof. The two spaces are isolated from each other. One end is the space a where the cigarette cartridge is inserted and placed, and the other end is the space b where the atomized liquid is heated to form steam. An air pressure sensor 208 is disposed in the space b where the atomized liquid is heated to form steam, and the air pressure sensor 208 is connected to the microcontrol circuit 205. In the space b formed by the heated atomized liquid, a through hole 209 is disposed to connect to the outside world, so that external air can enter the space b formed by the heated atomized liquid to cool the steam to form an aerosol. The through hole 209 can be set to an adjustable structure or completely closed. The power supply part 210 of the atomizer provides the electrical energy required for operation to other components through the microcontrol circuit 205. The user smokes through the mouthpiece structure 211 of the atomizer.

[0049] When not in use, the entire cigarette cartridge is sealed and isolated from the outside world. When in use, the cigarette cartridge is loaded into the space a of the atomizer, and the needle tip of the needle tube structure 201 of the heater pierces the thin film structure of the cigarette cartridge and is inserted into the interior of the cigarette cartridge to complete the assembly of the cigarette cartridge and the atomizer. When the user inhales from the mouthpiece 211, the air pressure in space b will be lower than the air pressure in space a, forming an air pressure difference. Under the action of the air pressure difference, the atomized liquid in the cigarette cartridge will move into space b through the needle tube structure 201 and be transported to the porous body 202. The air pressure sensor 208 senses the decrease in air pressure in space b and sends a signal to the microcontrol circuit. The microcontrol circuit connects the power supply of the heating circuit 203. The heating circuit 203 is energized to generate ohmic effect heat, heating the atomized liquid in the porous body 202. When the temperature reaches the atomization point, steam is formed and provided to the user for inhalation. The temperature measuring circuit 204 senses the temperature of the heating circuit 203 and transmits the signal to the microcontroller circuit 205, which adjusts the input power to the heating circuit 203 to maintain a suitable atomization temperature. The vent 209 can adjust the pressure difference between space a and space b by adjusting the opening size, and at the same time, the external cold air flows in to adjust the steam aerosol form to meet different atomization state requirements. The air pressure sensor 208 can be replaced by a manual switch or the air pressure sensor and the manual switch can be linked.

[0050] When the user stops smoking, the mouth leaves the mouthpiece 211, the pressure difference between space b and space a disappears, and the smoke liquid moves through the needle tube structure 201 without the power of the pressure difference. The air pressure sensor 208 senses the pressure change signal and sends it to the microcontroller circuit 205, which stops energizing the heating circuit 203, stops heating and stops producing steam.

[0051] When the atomized liquid in the cigarette cartridge is used up, during the user's inhalation, the atomized liquid in the porous body 202 is insufficient, and there is no heat taken away by the vaporization phase change of the atomized liquid. The temperature of the heating circuit 203 will increase significantly. The temperature measuring circuit 204 senses the temperature increase of the heating circuit 203 and sends a signal to the microcontroller circuit 205. Combined with the signal of the air pressure sensor 208, it is determined that the atomized liquid is exhausted, and the heating is stopped and this information is transmitted to the user.

[0052] When the atomizer liquid in the cartridge is consumed, the shell will be flattened and deformed by the external air pressure, and irreversible deformation will occur until the atomizer liquid is consumed. When the atomizer liquid in the cartridge is consumed and the service life of the cartridge is reached, the cartridge is pulled out of space a, the needle tube structure of the atomizer is separated from the cartridge, and another cartridge is inserted into the shell of the atomizer, and the atomizer can be used again.

[0053] In another specific embodiment, the heating circuit part and the temperature measuring circuit part of the heating body can be combined into one circuit. The material adopts a metal material with a TCR value between 1000 and 4000 ppm, and has both heating and temperature measuring functions.

[0054] In another specific embodiment, the air pressure sensor may be replaced by an air flow sensor.

[0055] Preferably, the inserted needle tube structure can also be made into a structure with a gradual diameter, so as to increase the sealing performance between the needle tube and the cigarette cartridge after the cigarette cartridge is inserted into the atomizer, thereby better preventing the leakage of the cigarette oil during use and improving the user experience.

[0056] Preferably, a puncturable sealed air chamber is provided in the cartridge, and the air chamber is sealed and filled with compressed gas. After the needle tube structure 201 is inserted into the cartridge, the air chamber is punctured to release the compressed gas in the air chamber. The release and expansion of the compressed gas pushes the atomized liquid 102 in the cartridge to move toward the porous body 202 and penetrate rapidly. Thus, the atomization efficiency of the atomizer is further improved, which helps to further enhance the user experience.

[0057] The background section of the present invention may contain background information about the problem or environment of the present invention, but does not necessarily describe the prior art. Therefore, the content included in the background section is not an admission by the applicant that the prior art is available.

[0058] The above content is a further detailed description of the present invention in combination with specific / preferred embodiments, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, without departing from the concept of the present invention, it can also make several substitutions or modifications to these described embodiments, and these substitutions or modifications should be regarded as belonging to the protection scope of the present invention. In the description of this specification, the description of the reference terms "an embodiment", "some embodiments", "preferred embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily target the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In the absence of mutual contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples. Although the embodiments of the present invention and their advantages have been described in detail, it should be understood that various changes, substitutions and modifications can be made herein without departing from the scope of protection of the patent application.

Claims

1. An atomizing device, characterized in that: The invention comprises an atomizer and a cigarette cartridge which are separated in a non-working state, wherein the atomizer comprises a needle tube structure and a porous body, wherein one end of the needle tube structure is provided with a needle tip, wherein the one end of the needle tube structure is a structure in which the diameter gradually decreases toward the needle tip, and the other end of the needle tube structure is inserted into the porous body, wherein a heating circuit is arranged on the porous body, and atomized liquid is sealed in the cigarette cartridge, and the cigarette cartridge has a puncturable portion, and when the atomizer and the cigarette cartridge are assembled together, the puncturable portion of the cigarette cartridge is punctured by the tip of the needle tube structure, so that the needle tube structure enters the cigarette cartridge, and when the user inhales from the atomizer, the atomized liquid in the cigarette cartridge is transported to the cigarette cartridge via the needle tube structure under the action of the air pressure difference caused by the inhalation. The porous body is heated and atomized through the heating circuit for inhalation by the user; it also includes an air pressure sensor or an air flow sensor arranged in the space where the porous body is located; the air pressure sensor is used to sense the air pressure signal in the space where the porous body is located, and transmit the air pressure signal to the micro-control circuit on the atomizer, and the micro-control circuit controls the heating circuit to stop heating and produce steam when it is judged that the atomized liquid is exhausted according to the air pressure signal; the air flow sensor is used to sense the air flow signal in the space where the porous body is located, and transmit the air flow signal to the micro-control circuit on the atomizer, and the micro-control circuit controls the heating circuit to stop heating and produce steam when it is judged that the atomized liquid is exhausted according to the air flow signal.

2. The atomizing device according to claim 1, characterized in that The heating circuit is arranged on the porous body in a surface winding, embedded or surface silk-screening manner.

3. The atomizing device according to claim 1, characterized in that The pierceable portion is a rubber cover or a film structure.

4. The atomizing device according to claim 3, characterized in that The film structure is aluminum foil or Tetra Pak composite paper film.

5. The atomizing device according to any one of claims 1 to 4, characterized in that: The porous body is also provided with a temperature measuring circuit, which is used to sense the temperature of the heating circuit and transmit the temperature signal to the micro-control circuit on the atomizer. The micro-control circuit adjusts the heating power of the heating circuit according to the temperature signal to maintain a suitable atomization temperature.

6. The atomizing device according to any one of claims 1 to 4, characterized in that: The porous body and the needle tube structure are bonded with an adhesive or connected in a nested manner.

7. The atomizing device according to any one of claims 1 to 4, characterized in that: The interior of the atomizer is divided into two spaces isolated from each other by a partition structure, one end of the needle tube structure is located in one of the spaces, and the porous body is located in the other space.

8. The atomizing device according to claim 7, characterized in that: The other space is provided with a vent for adjusting the air pressure difference, and the vent is communicated with the outside and has an adjustable opening size.

9. The atomizing device according to any one of claims 1 to 4, characterized in that: The cigarette cartridge is in the shape of a long tube.

10. The atomizing device according to claim 9, characterized in that: The cigarette cartridge is in a cylindrical shape.

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