CN113925220A - Aerosol generating device - Google Patents
Aerosol generating device Download PDFInfo
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- CN113925220A CN113925220A CN202111355362.9A CN202111355362A CN113925220A CN 113925220 A CN113925220 A CN 113925220A CN 202111355362 A CN202111355362 A CN 202111355362A CN 113925220 A CN113925220 A CN 113925220A
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- aerosol
- generating device
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- generating
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
- A24F40/46—Shape or structure of electric heating means
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/50—Control or monitoring
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/50—Control or monitoring
- A24F40/53—Monitoring, e.g. fault detection
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- Constitution Of High-Frequency Heating (AREA)
Abstract
The invention provides an aerosol generating device, comprising: an aerosolization chamber for housing an aerosol-generating substrate; a microwave generating device for generating microwaves; the heat-generating body sets up in the atomizing intracavity to can insert in the aerosol produces the matrix, the heat-generating body includes: the leading-in structure is electrically connected with the microwave generating device; the wave-absorbing structure is arranged on the leading-in structure and can generate heat under the action of microwaves; and the conductive structure is arranged on the wave-absorbing structure. The structure of the heating body is improved, so that most of microwaves are absorbed by the wave-absorbing structure, the wave-absorbing structure absorbs the microwaves and generates heat, the aerosol generating substrate can be uniformly heated, and dirt or residues on the aerosol generating substrate are avoided.
Description
Technical Field
The invention relates to the technical field of aerosol, in particular to an aerosol generating device.
Background
In the related art, the aerosol generating device adopts a resistance heating conduction mode to heat the aerosol generating substrate, but the part of the aerosol generating substrate close to the resistance heating body is heated quickly, and the part of the aerosol generating substrate far away from the resistance heating body is heated with low efficiency, so that the aerosol is difficult to form.
In addition, the aerosol-generating substrate has a high temperature at a position close to the resistance heating element, and is likely to generate dirt or residue. Dirt or residue adheres to and deposits on the surface of the resistance heat generating element, which is not only difficult to clean, but also affects the heating effect of the resistance heat generating element on the aerosol-generating substrate.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art.
To this end, the present invention provides an aerosol generating device.
The invention provides an aerosol generating device, comprising: an aerosolization chamber for housing an aerosol-generating substrate; a microwave generating device for generating microwaves; the heat-generating body sets up in the atomizing intracavity to can insert in the aerosol produces the matrix, the heat-generating body includes: the leading-in structure is electrically connected with the microwave generating device; the wave-absorbing structure is arranged on the leading-in structure and can generate heat under the action of microwaves; and the conductive structure is arranged on the wave-absorbing structure.
The aerosol generating device provided by the invention comprises an atomizing cavity, a microwave generating device and a heating body. Wherein at least part of the aerosol generating substrate is located within the atomising chamber and generates an aerosol when heated. The microwave generating device can generate microwaves in the operation process; the heating element is disposed within the atomising chamber and is inserted into the aerosol-generating substrate during use.
Particularly, the heating body comprises a leading-in structure, a wave absorbing structure and a conducting structure. The guide-in structure is connected with the microwave generating device and can conduct microwaves generated by the microwave generating device to the atomizing cavity; the leading-in structure and the conductive structure are arranged on the wave-absorbing structure, and most of microwaves are conducted towards one side of the conductive structure after the microwaves enter the atomizing cavity; in the process of microwave conduction, most of the microwaves are absorbed by the wave absorbing structure; the wave-absorbing structure can generate heat after absorbing the microwaves, and heating of the aerosol generating substrate is realized.
In particular, the aerosol generating device of the present invention uses microwaves to heat an aerosol generating substrate, which allows for rapid heating of the aerosol generating substrate. In addition, the structure of the heating element is improved, so that most of microwaves are absorbed by the wave-absorbing structure, the wave-absorbing structure absorbs the microwaves and generates heat in the working process of the aerosol generating device, and the leading-in structure and the conductive structure generate heat under the action of heat conduction, so that the heating element integrally heats the aerosol generating substrate.
Furthermore, in the aerosol generating device provided by the invention, the wave-absorbing structure has certain thickness and volume, and occupies most volume ratio of the heating element. Therefore, compared with a heating mode that a resistor is arranged at the end part of the heating element in the related technology, the heating element heating device can ensure that the working temperature of the heating element is proper, and further the situation that the local temperature of the heating element is too high can not occur. Therefore, on one hand, the aerosol generating substrate can be uniformly heated, on the other hand, the aerosol generating substrate can be prevented from being fouled or residual, so that the fouling or the residual can be prevented from being adhered and deposited on the surface of the resistance heating body, and the cleanliness of the surface of the heating body is ensured.
Therefore, the aerosol generating device provided by the invention improves the structure of the heating body, after the microwaves are introduced into the atomizing cavity through the introduction structure, the distribution of the microwaves in the atomizing cavity is interfered through the conductive structure, so that most of the microwaves are absorbed by the wave-absorbing structure, and the aerosol generating substrate is heated through the heating wave-absorbing structure, thereby realizing the efficient and uniform heating of the aerosol generating substrate.
In some possible designs, the conductive structure and the lead-in structure are located on opposite sides of the wave-absorbing structure.
In the design, the conductive structure and the leading-in structure are positioned on two opposite sides of the wave-absorbing structure, so that three layers of the heating body are arranged. The first layer is a leading-in structure, the second layer is a wave-absorbing structure, and the third layer is a conductive structure. Therefore, in the working process of the aerosol generating device, most of the microwaves guided into the atomizing cavity by the guide-in structure are conducted towards one side of the conductive structure through the wave-absorbing structure and are absorbed by the wave-absorbing structure in the conducting process.
That is, the positions of the leading-in structure, the wave-absorbing structure and the conducting structure are optimized, so that more microwaves can be absorbed by the wave-absorbing structure, the utilization rate of the microwaves is improved, and the efficient and uniform heating of the heating body on the aerosol generating substrate is also ensured.
In this design, further, some of the microwaves not absorbed by the wave absorbing structure may be absorbed by the aerosol generating substrate, thereby assisting in heating the aerosol generating substrate.
In some possible designs, the heating body is a heating sheet, and the lead-in structure, the wave-absorbing structure and the conductive structure are distributed along the thickness direction of the heating sheet.
In the design, the heating body is a heating sheet, and the whole heating body is of a sheet structure. In addition, the leading-in structure, the wave absorbing structure and the conducting structure are all sheet-shaped structures and are distributed along the thickness direction of the heating sheet. The heating body is set as the heating sheet, which is beneficial to simplifying the structure of the heating body and is convenient for the heating body to be inserted into the aerosol generating substrate.
In some possible designs, the lead-in structure includes a lead-in layer; the conductive structure includes a conductive layer; the wave-absorbing structure comprises a wave-absorbing layer.
In this design, the lead-in structure includes a lead-in layer. The shape and thickness of the guiding layer can be designed according to actual conditions, but the impedance of the guiding layer is matched with the impedance of the output end of the microwave generating device, so that the attenuation of the microwave in the conduction process is reduced to the maximum extent, and the microwave can be efficiently conducted from the output end of the microwave generating device to the guiding structure.
In the design, the conductive structure comprises a conductive layer, the wave-absorbing structure comprises a wave-absorbing layer, and the conductive layer is ensured to be matched with the wave-absorbing layer in structure. Like this, in the aerosol production device course of operation, the conducting layer influences the magnetic field distribution in the atomizing chamber for most microwave can be absorbed by the absorbing layer, and guaranteed absorbing layer to the absorbing area of microwave, and then promote the utilization ratio of microwave.
In some possible designs, the conductive layer is a metal layer; and/or the area of the conductive layer is larger than or equal to that of the wave-absorbing layer.
In the design, the conducting layer can be made of metal materials, and the area of the conducting layer is larger than or equal to that of the wave-absorbing layer, so that one side of the wave-absorbing layer can be completely wrapped by the conducting layer, microwaves are absorbed by the wave-absorbing layer to the maximum extent, and the waste of the microwaves is reduced.
In some possible designs, the wave-absorbing structure includes at least one of: silicon carbide structures, zinc oxide structures or ferrite structures.
In this design, the wave absorbing structure can be made of a material with large dielectric loss. For example, silicon carbide and zinc oxide are materials with large dielectric loss. Therefore, the silicon carbide or zinc oxide can enhance the microwave absorbing capacity of the wave absorbing structure and improve the heating effect on the aerosol generating substrate.
In the design, the wave-absorbing structure can be made of a material with large magnetic loss. For example, a magnetic material such as ferrite has a large magnetic loss. Therefore, the magnetic material such as ferrite can enhance the microwave absorbing capacity of the wave absorbing structure and improve the heating effect on the aerosol generating substrate.
In some possible designs, the wave absorbing structure includes a microstrip line, and one end of the microstrip line is connected to the microwave generating device.
In this design, the wave absorbing structure comprises a microstrip line. The impedance of the microstrip line is matched with the impedance of the output end of the microwave generating circuit, and one end of the microstrip line is connected with the microwave generating device. Therefore, the loss of the microwave during conduction between the output end of the microwave generating circuit and the microstrip line can be reduced to the minimum, so that the microstrip line can transmit the microwave more efficiently, and the utilization rate of the microwave is improved.
In some possible designs, at least a portion of the microstrip line is curved; and/or at least a part of the microstrip line is linear.
In the design, the microstrip lines can be arranged according to actual conditions when being installed, so that the microstrip lines are distributed in a patterning mode. Specifically, the microstrip line may be partially installed in a straight manner, and may be partially installed in a curved manner. Therefore, different magnetic field designs can be carried out by adjusting the installation position of the microstrip line, so that the distribution of the high-temperature part on the heating element is more uniform, and the aerosol generating substrate is uniformly and efficiently heated.
In some possible designs, the heating element is arranged in the middle of the atomizing chamber and is spaced from the side wall of the atomizing chamber.
In the design, the heating body is arranged in the middle of the atomizing cavity and is spaced from the edge of the atomizing cavity by a sufficient distance. Thus, the heating element may be inserted in the middle of the aerosol-generating substrate, on the one hand, so that the aerosol-generating substrate can easily enter the nebulization chamber and also easily leave the nebulization chamber. On the other hand, the heating element can heat the middle position of the aerosol generating substrate, so that the aerosol generating substrate is uniformly heated.
In some possible designs, the first end of the heat-generating body is provided at the bottom wall of the atomizing chamber, and the second end of the heat-generating body is provided with the insertion portion.
In this design, the first end of the heating element is mounted on the bottom wall of the atomizing chamber to fix the position of the heating element. The second end of the heating element is provided with an insertion part, and when the aerosol generating substrate is heated, the insertion part can be inserted on the heating element and further fixed in the atomizing cavity without external force. Therefore, the aerosol-generating substrate can be inserted onto the heating body during heating, and does not need to be manually fixed by a user, thereby increasing the convenience of heating. In particular, the insert portion may be provided with a triangular shape to facilitate insertion of the insert portion into the hot aerosol generating substrate.
In some possible designs, the microwave generating device comprises: a microwave generating circuit for generating microwaves; and the microwave transmission circuit is electrically connected with the microwave generating circuit and the leading-in structure.
In this design, the microwave generating means comprises a microwave generating circuit and a microwave transmitting circuit. The microwave transmission circuit is respectively connected with the microwave generating device and the leading-in structure. Therefore, the microwave transmission circuit can transmit the microwaves generated by the microwave generating device to the guide-in structure, the guide-in structure transmits the microwaves to the wave-absorbing structure, and the wave-absorbing structure can absorb the microwaves to generate heat, so that the aerosol generating substrate is heated.
In some possible designs, the return loss characteristic parameter of the microwave transmission circuit is less than or equal to-6 db.
In the design, the return loss characteristic parameter of the microwave transmission circuit is generally less than or equal to-6 db, so that the microwave transmission circuit can reduce the reflection loss generated during microwave transmission and more stably transmit microwaves to the heating element.
Furthermore, the return loss characteristic parameter of the microwave transmission circuit can be optimized, the return loss characteristic parameter is smaller than-10 db, and the reflection loss of the microwave transmission circuit is further reduced.
Furthermore, the return loss characteristic parameters are optimized to be less than-20 db, so that the reflection loss of the microwaves transmitted by the microwave transmission circuit is the lowest, and the microwave transmission circuit can transmit more microwaves, therefore, the microwaves obtained by the wave absorbing structure can increase the temperature generated by the wave absorbing structure, and the heating speed of the heating body is increased.
In some possible designs, the aerosol generating device further comprises: the control circuit is electrically connected with the microwave generating device; and the power supply device is electrically connected with the control circuit and the microwave generating device.
In this design, the aerosol generating device further comprises a control circuit and a power supply. The control circuit is connected with the microwave generating device through a circuit and controls the microwave generating device to generate microwaves. The power supply device is electrically connected with the control circuit and the microwave generating device respectively to supply power, so that the control circuit can control the microwave generating device to work to generate microwaves.
In some possible designs, the aerosol generating device further comprises: the temperature detection device is arranged on the heating body and is electrically connected with the control circuit; the temperature detection device is used for detecting the temperature of the heating body, and the control circuit can control the microwave generation device to work according to the detection result of the temperature detection device.
In this design, the aerosol generating device further comprises a temperature sensing device. The temperature detection device is arranged on the heating body and is connected with the control circuit, and the temperature detection device sends the detected temperature of the heating body to the control circuit at any time; the control circuit adjusts the operation of the microwave generating device according to the detection result of the temperature detection device to increase or reduce the generation of microwaves, thereby controlling the heating effect of the heating body. Specifically, the temperature detection means may be provided on the conductive structure of the heat generating body.
Specifically, when the temperature of the heating element detected by the temperature detection device is too high, the control circuit can reduce the microwaves output by the microwave generation circuit, so that the microwaves absorbed by the wave-absorbing structure are reduced, and the temperature reached by the wave-absorbing structure is reduced, so that the heating effect of the heating element is weakened.
Specifically, when the temperature of the heating element detected by the temperature detection device is too low, the control circuit can increase the microwaves output by the microwave generation circuit, so that the microwaves absorbed by the wave-absorbing structure are increased, the wave-absorbing structure can reach higher temperature, the heating temperature of the aerosol generating substrate is increased, and the purpose of enhancing the heating effect of the heating element is achieved.
In some possible designs, the conductive structure is disconnected from the control circuitry; or the conductive structure is electrically connected with the ground wire of the control circuit.
In this design, it may be that the conductive structure is not connected to the control circuit, so that the conductive structure is an open circuit design; or the conductive structure is electrically connected with the ground wire of the control circuit, so that the conductive structure is designed to be short-circuited.
In some possible designs, the aerosol generating device further comprises: the casing, the casing includes atomizing chamber and installation cavity, and microwave generating device, control circuit and power supply unit set up in the installation cavity.
In this design, the aerosol generating device further comprises a housing. Wherein, the casing includes installation cavity and above-mentioned atomizing chamber. The microwave generating device, the control circuit and the power supply device of the aerosol generating device are all arranged in the installation cavity, so that the microwave generating device, the control circuit and the power supply device are stably installed, and meanwhile, protection is provided for the microwave generating device, the control circuit and the power supply device.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic structural view of an aerosol generating device according to an embodiment of the present invention;
FIG. 2 is a schematic view showing a structure of a heat generating body in an aerosol-generating apparatus according to an embodiment of the present invention;
FIG. 3 is a partial schematic view of the heat-generating body shown in FIG. 2.
Wherein, the correspondence between the reference numbers and the component names in fig. 1 to 3 is:
100 heating elements, 102 leading-in structures, 104 wave absorbing structures, 106 conducting structures, 108 inserting parts, 202 atomizing cavities, 204 temperature detecting devices, 206 microwave transmission circuits, 208 microwave generating circuits, 210 microwave generating devices, 212 control circuits, 214 shells, 216 power supply devices, 218 mounting cavities and 300 aerosol generating substrates.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced otherwise than as specifically described herein, and thus the scope of the present invention is not limited by the specific embodiments disclosed below.
Aerosol-generating devices provided according to some embodiments of the present invention are described below with reference to fig. 1-3.
As shown in fig. 1, a first embodiment of the present invention provides an aerosol generating device, which includes an atomizing chamber 202, a microwave generating device 210, and a heating element 100. Wherein at least part of the aerosol generating substrate 300 is located within the nebulization chamber 202 and generates an aerosol upon heating. The microwave generating device 210 may generate microwaves during operation; the heat-generating body 100 is disposed within the nebulizing chamber 202 and, during use, is inserted into the aerosol-generating substrate 300.
Specifically, as shown in fig. 2 and 3, the heating element 100 includes a lead-in structure 102, a wave-absorbing structure 104, and a conductive structure 106. Wherein, the introducing structure 102 is connected with the microwave generating device 210, and the introducing structure 102 can conduct the microwave generated by the microwave generating device 210 into the atomizing chamber 202; the introduction structure 102 and the conductive structure 106 are both arranged on the wave-absorbing structure 104, and most of the microwaves are conducted towards one side of the conductive structure 106 after entering the atomization cavity 202; during the microwave conduction process, most of the microwaves are absorbed by the wave-absorbing structure 104; the wave-absorbing structure 104 generates heat upon absorbing microwaves, thereby effecting heating of the aerosol-generating substrate 300.
In particular, as shown in figure 1, the aerosol-generating device of the present invention uses microwaves to heat the aerosol-generating substrate 300, which allows for rapid heating of the aerosol-generating substrate 300. In addition, the structure of the heating element 100 is improved, so that most of the microwaves are absorbed by the wave absorbing structure 104, the wave absorbing structure 104 absorbs the microwaves and generates heat in the working process of the aerosol generating device, and the introducing structure 102 and the conducting structure 106 generate heat under the action of heat conduction, so that the heating element 100 integrally heats the aerosol generating substrate 300.
Further, as shown in fig. 3, in the aerosol generating device provided by the present invention, the wave-absorbing structure 104 itself has a certain thickness and volume, and the wave-absorbing structure 104 occupies most of the volume ratio of the heating element 100. Thus, compared with the heating mode that the end part is provided with the resistor in the related art, the invention can ensure that the working temperature of the heating body 100 is proper, and the situation that the local temperature of the heating body 100 is overhigh can not happen. Thus, on the one hand, uniform heating of the aerosol-generating substrate 300 can be achieved, and on the other hand, occurrence of dirt or residue on the aerosol-generating substrate 300 can be avoided, so that adhesion and deposition of the dirt or residue to the surface of the heat-generating body 100 can be avoided, and cleanliness of the surface of the heat-generating body 100 is ensured.
Therefore, the aerosol generating device provided by the invention improves the structure of the heating element 100, after the microwave is introduced into the atomizing cavity 202 through the introducing structure 102, the distribution of the microwave in the atomizing cavity 202 is interfered by the conducting structure 106, so that most of the microwave is absorbed by the wave-absorbing structure 104, and the aerosol generating substrate 300 is heated through the wave-absorbing structure 104 which generates heat, thereby realizing the efficient and uniform heating of the aerosol generating substrate 300.
A second embodiment of the present invention provides an aerosol generating device, further comprising:
as shown in fig. 2 and 3, the conductive structure 106 and the lead-in structure 102 are located on two opposite sides of the wave-absorbing structure 104, so as to realize three layers of the heating element 100. Wherein, the first layer is a leading-in structure 102, the second layer is a wave-absorbing structure 104, and the third layer is a conductive structure 106. Thus, during operation of the aerosol generating device, the microwaves introduced into the nebulizing chamber 202 by the introduction structure 102 are mostly conducted through the wave-absorbing structure 104 towards the side of the electrically conductive structure 106 and absorbed by the wave-absorbing structure 104 during conduction.
The positions of the leading-in structure 102, the wave-absorbing structure 104 and the conducting structure 106 are optimized, so that more microwaves can be absorbed by the wave-absorbing structure 104, the utilization rate of the microwaves is improved, and the heating element 100 is also guaranteed to efficiently and uniformly heat the aerosol generating substrate 300. Further, some of the microwaves not absorbed by the wave-absorbing structure 104 may be absorbed by the aerosol generating substrate 300, thereby assisting in heating the aerosol generating substrate 300.
Specifically, the conductive structure 106 can change the distribution of the magnetic field in the atomizing chamber 202, so that most of the microwaves are conducted toward the position where the conductive structure 106 is located, and are absorbed by the wave-absorbing structure 104 in the conducting process, thereby realizing efficient utilization of the microwaves.
In this embodiment, as shown in fig. 2 and fig. 3, the heating element 100 is a heating sheet, and the introducing structure 102, the wave-absorbing structure 104 and the conductive structure 106 are distributed along the thickness direction of the heating sheet. The heat generating body 100 is a heat generating sheet, and the entire heat generating body 100 has a sheet-like structure. The lead-in structure 102, the wave-absorbing structure 104 and the conductive structure 106 are also sheet-shaped structures and are distributed along the thickness direction of the heat generating sheet. Providing the heat-generating body 100 as a heat-generating sheet is advantageous in simplifying the structure of the heat-generating body 100 and facilitating insertion of the heat-generating body 100 into the inside of the aerosol-generating substrate 300.
In this embodiment, further, as shown in fig. 2 and 3, the lead-in structure 102 includes a lead-in layer. The shape and thickness of the guiding layer can be designed according to actual conditions, but it is required to ensure that the impedance of the guiding layer matches with the impedance of the output end of the microwave generating device 210, so as to reduce the attenuation of the microwave during the conduction process to the maximum extent, and ensure that the microwave can be efficiently conducted from the output end of the microwave generating device 210 to the guiding structure 102.
In this embodiment, further, as shown in fig. 2 and 3, the conductive structure 106 comprises a conductive layer, the absorbing structure 104 comprises a wave-absorbing layer, and the conductive layer is ensured to match the structure of the wave-absorbing layer. Like this, in aerosol generating device working process, the conducting layer influences the magnetic field distribution in the atomizing chamber 202 for most microwave can be absorbed by the absorbing layer, and has guaranteed the absorbing area of absorbing layer to the microwave, and then promotes the utilization ratio of microwave.
In the embodiment, further, the conducting layer can be made of a metal material, and the area of the conducting layer is larger than or equal to that of the wave-absorbing layer, so that one side of the wave-absorbing layer can be completely wrapped by the conducting layer, microwaves are absorbed by the wave-absorbing layer to the maximum extent, and the waste of the microwaves is reduced.
In this embodiment, further, as shown in fig. 3, the thickness of the wave-absorbing layer is greater than that of the introduction layer, and the thickness of the wave-absorbing layer is greater than that of the conductive layer. Thus, the wave absorbing layer is ensured to occupy the enough structure of the heating element 100, which is beneficial to further promoting the uniform heating of the heating element 100 to the aerosol generating substrate 300.
Specifically, in this embodiment, as shown in fig. 3, the wave-absorbing layer has a certain thickness (which may be set according to actual conditions, such as design according to the size of the atomizing chamber 202 and design according to the size of the aerosol generation base) to ensure that the volume of the part of the heating body 100 capable of generating heat is large enough to achieve uniform heating of the aerosol-generating substrate 300 (especially compared with the end resistance heating manner in the related art).
Specifically, in this embodiment, as shown in fig. 3, the conductive layer has a certain thickness (the thickness of the conductive layer exceeds the skin depth of the conductive layer). And the shape of the conducting layer is basically consistent with that of the wave-absorbing layer, and the area of the conducting layer can be larger than that of the wave-absorbing layer. Therefore, in the working process of the aerosol generating device, each position of the wave-absorbing layer can be ensured to be directly absorbed into the microwave, the wave-absorbing layer can be uniformly heated, and the aerosol generating base is uniformly heated.
A third embodiment of the present invention provides an aerosol generating device, further comprising:
in one aspect, the absorbing structure 104 may be made of a material with a large dielectric loss. For example, silicon carbide and zinc oxide are materials with large dielectric loss. Thus, the use of silicon carbide or zinc oxide may enhance the ability of the wave-absorbing structure 104 to absorb microwaves, increasing the heating effect on the aerosol-generating substrate 300.
On the other hand, the wave-absorbing structure 104 can be made of a material with large magnetic loss. For example, a magnetic material such as ferrite has a large magnetic loss. Thus, the use of magnetic materials such as ferrites may enhance the ability of the absorbing structure 104 to absorb microwaves, improving the heating effect on the aerosol-generating substrate 300.
A fourth embodiment of the present invention provides an aerosol generating device, further comprising:
as shown in fig. 2, the wave-absorbing structure 104 comprises a microstrip line. The impedance of the microstrip line is matched with the impedance of the output end of the microwave generating circuit 208, and one end of the microstrip line is connected with the microwave generating device 210. Thus, the loss of the microwave when the microwave is conducted between the output end of the microwave generating circuit 208 and the microstrip line can be reduced to the minimum, so that the microstrip line can transmit the microwave more efficiently, and the utilization rate of the microwave can be improved.
In this embodiment, further, as shown in fig. 2, when the microstrip line is installed, it may be set according to practical situations, so that the microstrip line is distributed in a patterned manner. Specifically, the microstrip line may be partially installed in a straight manner, and may be partially installed in a curved manner. Therefore, the present invention can perform different magnetic field designs by adjusting the installation position of the microstrip line, so that the distribution of the high temperature portion on the heating element 100 is more uniform, and the aerosol-generating substrate 300 is uniformly and efficiently heated.
Specifically, in this embodiment, as shown in fig. 3, the microstrip line has a certain thickness and shape, and the microstrip line is a metal line, and the microstrip line can be used in the charging antenna during use. In addition, the impedance of the microstrip line is matched with the impedance of the output end of the microwave generating circuit 208 (for example, 50 ohms can be selected, and the microstrip line can be designed according to actual situations). Therefore, in the process of conducting the microwave from the output end of the microwave generating circuit 208 to the microstrip line, the loss of the microwave can be reduced to the minimum, on the basis of ensuring the stable conduction of the microwave, the conduction efficiency of the microwave between the output end of the microwave generating circuit 208 and the microstrip line is improved, and the utilization rate of the microwave is improved.
A fifth embodiment of the present invention provides an aerosol generating device, further comprising:
as shown in fig. 1, the heat-generating body 100 is installed at the middle position of the atomizing chamber 202 with a sufficient distance from the edge of the atomizing chamber 202. Thus, the heat-generating body 100 may be inserted in the middle of the aerosol-generating substrate 300, on the one hand, so that the aerosol-generating substrate 300 can easily enter the nebulizing chamber 202, and also easily leave the nebulizing chamber 202. On the other hand, the heating element 100 can heat the middle position of the aerosol-generating substrate 300, thereby realizing uniform heating of the aerosol-generating substrate 300.
In this embodiment, further, as shown in fig. 1, the first end of the heat-generating body 100 is mounted on the bottom wall of the atomizing chamber 202 to fix the position of the heat-generating body 100. The second end of the heating element 100 is provided with an insertion portion 108, which can be inserted onto the heating element 100 and further fixed in the atomizing chamber 202 without external force when the aerosol-generating substrate 300 is heated. The aerosol-generating substrate 300 can be inserted on the heat-generating body 100 at the time of heating without manual fixing by the user, thereby increasing convenience of heating.
In particular, the insert 108 may be provided with a triangular shape to facilitate insertion of the insert 108 into the hot aerosol generating substrate 300.
A sixth embodiment of the present invention provides an aerosol generating device, further comprising:
as shown in fig. 1, the microwave generating device 210 includes a microwave generating circuit 208 and a microwave transmitting circuit 206. Wherein the microwave generating device 210 is used for generating microwaves, and the microwave transmission circuit 206 is connected with the microwave generating device 210 and the introducing structure 102 respectively. Thus, the microwave transmission circuit 206 may transmit microwaves generated by the microwave generating means 210 to the introduction structure 102, the introduction structure 102 may transmit microwaves to the wave-absorbing structure 104, and the wave-absorbing structure 104 may absorb the microwaves to generate heat, thereby heating the aerosol-generating substrate 300.
In particular, in this embodiment, as shown in fig. 1, the microwave generating circuit 208 may include a signal source and a PA amplifying circuit, which are not discussed in detail herein. In addition, the maximum power of the microwave generating circuit 208 is 1W to 20W; preferably, the maximum power of the microwave generating circuit 208 is selected to be 10W to 15W.
In this embodiment, as shown in fig. 1, the return loss characteristic parameter S11 of the microwave transmission circuit 206 is generally less than or equal to-6 db, so that the microwave transmission circuit 206 can reduce the reflection loss during microwave transmission and more stably transmit the microwave to the heat generating element.
Further, the return loss characteristic parameter S11 of the microwave transmission circuit 206 may be optimized to be smaller than-10 db, so that the microwave transmission circuit 206 further reduces the reflection loss.
Furthermore, the return loss characteristic parameter S11 is optimized to be less than-20 db, so that the reflection loss of the microwaves transmitted by the microwave transmission circuit 206 is minimized, and the microwave transmission circuit 206 can transmit more microwaves, so that the microwaves obtained by the wave-absorbing structure 104 can increase the temperature generated by the wave-absorbing structure 104, thereby increasing the temperature rise speed of the heating element 100.
Here, the return loss characteristic parameter S11 in the present embodiment is: the ratio of the reflected echo energy to the incident wave energy is understood by those skilled in the art and will not be discussed further herein.
A seventh embodiment of the present invention provides an aerosol generating device, further comprising:
as shown in fig. 1, the aerosol generating device further comprises a control circuit 212 and a power supply 216. The control circuit 212 is electrically connected to the microwave generator 210, and controls the microwave generator 210 to generate microwaves. The power supply 216 provides power by being electrically connected to the control circuit 212 and the microwave generating device 210, respectively, so that the control circuit 212 can control the microwave generating device 210 to operate to generate microwaves.
In this embodiment, further, as shown in fig. 1, the aerosol generating device further comprises a temperature detecting device 204. The temperature detection device 204 is mounted on the heating element 100, and the temperature detection device 204 transmits the detected temperature of the heating element 100 to the control circuit 212 at any time by the connection with the control circuit 212; the control circuit 212 controls the heating effect of the heating element 100 by adjusting the operation of the microwave generator 210 to increase or decrease the generation of microwaves according to the detection result of the temperature detector 204. Specifically, the temperature detection device 204 may be provided on the conductive structure 106 of the heat-generating body 100. Specifically, the temperature detection device 204 may be provided on the conductive structure 106 of the heat-generating body 100.
Specifically, when the temperature of the heating element 100 detected by the temperature detecting device 204 is too high, the control circuit 212 may reduce the microwaves output by the microwave generating circuit 208, so as to reduce the microwaves absorbed by the wave-absorbing structure 104, and reduce the temperature reached by the wave-absorbing structure 104, so as to achieve the purpose of weakening the heating effect of the heating element 100.
Specifically, when the temperature of the heating element 100 detected by the temperature detecting device 204 is too low, the control circuit 212 may increase the microwaves output by the microwave generating circuit 208, so that the microwaves absorbed by the wave-absorbing structure 104 are increased, and the wave-absorbing structure 104 can reach a higher temperature, so as to increase the heating temperature of the aerosol generation substrate 300, and achieve the purpose of enhancing the heating effect of the heating element 100.
Based on any of the above embodiments, further, in the present invention, the conductive structure 106 may not be connected to the control circuit 212, so that the conductive structure 106 is designed to be open; it is also possible that the conductive structure 106 is electrically connected to the ground of the control circuit 212, so that the conductive structure 106 is short-circuited
In addition to any of the above embodiments, as shown in fig. 1, the aerosol generating device further includes a housing 214. The housing 214 includes a mounting cavity 218 and the atomization cavity 202. The microwave generating device 210, the control circuit 212 and the power supply device 216 of the aerosol generating device are all disposed in the mounting cavity 218, so as to ensure stable mounting of the microwave generating device 210, the control circuit 212 and the power supply device 216, and provide protection for the microwave generating device 210, the control circuit 212 and the power supply device 216.
Specifically, the heating principle of the aerosol generating device provided by the invention is as follows: the conductive structure 106 in the heat-generating body 100 can be regarded as a ground structure in the lead-in structure 102; the first layer introduction structure 102 is used for transmitting emitted microwaves, and the second layer absorbing structure 104 is used for absorbing the microwaves and generating heat under the condition of absorbing the microwaves. With this structural design, the microwaves are primarily present between the lead-in structure 102 and the conductive structure 106. After most of the microwaves are absorbed and lost by the wave-absorbing structure 104, the wave-absorbing structure 104 generates a large amount of heat, so that the wave-absorbing structure 104 rises and the aerosol-generating substrate 300 is heated. In addition, the magnetic field intensity near the microstrip line is stronger, the temperature rising speed is faster, and the temperature field design can be carried out by utilizing the characteristic.
It should be noted here that the introduction structure 102 and the conductive structure 106 are also stabilized by the heat radiation of the wave-absorbing structure 104, so as to heat the aerosol-generating substrate 300 simultaneously. Moreover, a small portion of the microwaves not absorbed by the wave absorbing structure 104 will directly act on the aerosol-generating substrate 300, thereby achieving the effect of assisting in heating.
In summary, the heating element 100 is designed by using the principle that microwave load absorbs microwave, and the whole wave-absorbing structure 104 can absorb microwave very quickly to increase temperature, and the temperature increase speed is very fast. The invention has wide material selection range for the microstrip line and the conductive structure 106, and can select the material first and then carry out the figure design of the microstrip line, thereby preferentially selecting some metals with low cost and high safety. Also, the present invention can design a microstrip line pattern so as to obtain a desired temperature field. In the present invention, most of the microwaves are absorbed by the wave absorbing structure 104. Thus. The ring isolator circuit can be eliminated in the microwave generating circuit 208, so that the entire circuit structure is simple.
In the description of the present invention, the terms "plurality" or "a plurality" refer to two or more, and unless otherwise specifically limited, the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention; the terms "connected," "mounted," "secured," and the like are to be construed broadly and include, for example, fixed connections, removable connections, or integral connections; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (16)
1. An aerosol generating device, comprising:
an aerosolization chamber for housing an aerosol-generating substrate;
a microwave generating device for generating microwaves;
a heating element disposed in the atomizing chamber and insertable into the aerosol generating substrate, the heating element comprising:
the leading-in structure is electrically connected with the microwave generating device;
the wave-absorbing structure is arranged on the leading-in structure and can generate heat under the action of the microwaves;
and the conductive structure is arranged on the wave absorbing structure.
2. An aerosol-generating device according to claim 1,
the conductive structure and the leading-in structure are positioned on two opposite sides of the wave-absorbing structure.
3. An aerosol-generating device according to claim 1,
the heating body is a heating sheet, and the leading-in structure, the wave-absorbing structure and the conductive structure are distributed along the thickness direction of the heating sheet.
4. An aerosol-generating device according to claim 1,
the lead-in structure comprises a lead-in layer; the conductive structure comprises a conductive layer; the wave-absorbing structure comprises a wave-absorbing layer.
5. An aerosol-generating device according to claim 4,
the conducting layer is a metal layer; and/or
The area of the conductive layer is larger than or equal to that of the wave-absorbing layer.
6. The aerosol generating device of any of claims 1 to 5,
the wave-absorbing structure comprises at least one of the following: silicon carbide structures, zinc oxide structures or ferrite structures.
7. The aerosol generating device of any of claims 1 to 5,
the wave absorbing structure comprises a microstrip line, and one end part of the microstrip line is connected to the microwave generating device.
8. An aerosol-generating device according to claim 7,
at least one part of the microstrip line is bent; and/or
At least one part of the microstrip line is linear.
9. The aerosol generating device of any of claims 1 to 5,
the heating body set up in the middle part in atomizing chamber, and with the interval has between the lateral wall in atomizing chamber.
10. The aerosol generating device of any of claims 1 to 5,
the first end of heat-generating body set up in the diapire in atomizing chamber, the second end of heat-generating body is provided with the inserted part.
11. An aerosol generating device according to any of claims 1 to 5, wherein the microwave generating device comprises:
a microwave generating circuit for generating the microwave;
and the microwave transmission circuit is electrically connected with the microwave generating circuit and the leading-in structure.
12. An aerosol-generating device according to claim 11,
the return loss characteristic parameter of the microwave transmission circuit is less than or equal to-6 db.
13. An aerosol-generating device according to any one of claims 1 to 5, further comprising:
the control circuit is electrically connected with the microwave generating device;
and the power supply device is electrically connected with the control circuit and the microwave generating device.
14. An aerosol generating device according to claim 13, further comprising:
the temperature detection device is arranged on the heating body and is electrically connected with the control circuit;
the temperature detection device is used for detecting the temperature of the heating body, and the control circuit can control the microwave generation device to work according to the detection result of the temperature detection device.
15. An aerosol-generating device according to claim 13,
the conductive structure is disconnected from the control circuit; or
The conductive structure is electrically connected with the ground wire of the control circuit.
16. An aerosol generating device according to claim 13, further comprising:
the casing, the casing includes atomizing chamber and installation cavity, microwave generating device control circuit with power supply unit set up in the installation cavity.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111355362.9A CN113925220A (en) | 2021-11-16 | 2021-11-16 | Aerosol generating device |
| PCT/CN2022/129146 WO2023088094A1 (en) | 2021-11-16 | 2022-11-02 | Aerosol generating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111355362.9A CN113925220A (en) | 2021-11-16 | 2021-11-16 | Aerosol generating device |
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| Publication Number | Publication Date |
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| CN113925220A true CN113925220A (en) | 2022-01-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111355362.9A Pending CN113925220A (en) | 2021-11-16 | 2021-11-16 | Aerosol generating device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN113925220A (en) |
| WO (1) | WO2023088094A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023088094A1 (en) * | 2021-11-16 | 2023-05-25 | 深圳麦时科技有限公司 | Aerosol generating device |
| WO2023155566A1 (en) * | 2022-02-21 | 2023-08-24 | 海南摩尔兄弟科技有限公司 | Heating and atomization apparatus |
| WO2023197726A1 (en) * | 2022-04-11 | 2023-10-19 | 深圳麦时科技有限公司 | Atomization medium insertion detection method and electronic atomization device |
| WO2023216741A1 (en) * | 2022-05-13 | 2023-11-16 | 海南摩尔兄弟科技有限公司 | Heating assembly and microwave heating device |
| WO2024103795A1 (en) * | 2022-11-18 | 2024-05-23 | 思摩尔国际控股有限公司 | Microwave generation method and apparatus |
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| JPH04188594A (en) * | 1990-11-21 | 1992-07-07 | Matsushita Electric Ind Co Ltd | Microwave heat emitting element |
| CN101568209A (en) * | 2009-01-21 | 2009-10-28 | 徐艳姬 | Microwave heater for heating liquid and/or gases |
| CN110257006A (en) * | 2017-12-07 | 2019-09-20 | 苏州鼎烯聚材纳米科技有限公司 | A kind of microwave absorbing material and preparation method thereof |
| CN110859321A (en) * | 2018-08-08 | 2020-03-06 | 北京航天雷特机电工程有限公司 | Cigarette bullet and electron cigarette |
| CN208708749U (en) * | 2018-08-08 | 2019-04-09 | 北京航天雷特机电工程有限公司 | A kind of smoke grenade and electronic cigarette |
| CN210226909U (en) * | 2019-04-08 | 2020-04-03 | 北京航天雷特机电工程有限公司 | Aerial fog generating device |
| CN111789302A (en) * | 2019-04-08 | 2020-10-20 | 北京航天雷特机电工程有限公司 | Aerial fog generating device |
| CN110279152B (en) * | 2019-06-19 | 2022-05-10 | 云南巴菰生物科技股份有限公司 | Microwave electronic cigarette |
| CN113558300A (en) * | 2021-08-31 | 2021-10-29 | 深圳市子午线信息科技有限公司 | Microwave heating cigarette and microwave heating device |
| CN113925220A (en) * | 2021-11-16 | 2022-01-14 | 深圳麦时科技有限公司 | Aerosol generating device |
| CN216363671U (en) * | 2021-11-16 | 2022-04-26 | 深圳麦时科技有限公司 | Aerosol generating device |
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2021
- 2021-11-16 CN CN202111355362.9A patent/CN113925220A/en active Pending
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2022
- 2022-11-02 WO PCT/CN2022/129146 patent/WO2023088094A1/en unknown
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023088094A1 (en) * | 2021-11-16 | 2023-05-25 | 深圳麦时科技有限公司 | Aerosol generating device |
| WO2023155566A1 (en) * | 2022-02-21 | 2023-08-24 | 海南摩尔兄弟科技有限公司 | Heating and atomization apparatus |
| WO2023197726A1 (en) * | 2022-04-11 | 2023-10-19 | 深圳麦时科技有限公司 | Atomization medium insertion detection method and electronic atomization device |
| WO2023216741A1 (en) * | 2022-05-13 | 2023-11-16 | 海南摩尔兄弟科技有限公司 | Heating assembly and microwave heating device |
| WO2024103795A1 (en) * | 2022-11-18 | 2024-05-23 | 思摩尔国际控股有限公司 | Microwave generation method and apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2023088094A1 (en) | 2023-05-25 |
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