WO2023098364A1 - Atomizer and electronic atomization device - Google Patents

Abstract

An atomizer (10), comprising: a base body (100), which is provided with an accommodating cavity (110) and has an atomization surface (120) for defining the boundary of the accommodating cavity (110); a heating assembly (200), which comprises a heat insulation body (210) and an infrared heating body (220). The heat insulation body (210) is at least partially accommodated in the accommodating cavity (110) and spaced apart from the atomization surface (120). The infrared heating body (220) is accommodated in the heat insulation body (210). Infrared ray generated by the infrared heating body (220) is radiated to the atomization surface (120) through the heat insulation body (210).

Description

Atomizers and Electronic Atomization Devices technical field

The invention relates to the technical field of electronic atomization, in particular to an atomizer and an electronic atomization device including the atomizer.

Background technique

Electronic atomization devices usually include a power supply component and an atomizer. The power supply component supplies power to the atomizer, and the atomizer converts electrical energy into heat energy. The liquid in the atomizer absorbs heat energy and atomizes to form an aerosol that can be inhaled by the user . However, for traditional atomizers, the heating temperature generated by the heating body fluctuates. At the same time, the airflow will absorb the heat of the heating body and cause the temperature to rise, so that the sucked airflow will cause burning discomfort to the user.

Contents of the invention

A technical problem solved by the invention is how to prevent the heating temperature of the infrared heating body from fluctuating.

An atomizer, characterized in that it comprises:

The base body is provided with a receiving cavity and has an atomizing surface for defining the boundary of the receiving cavity; and

The heating assembly includes a heat insulator and an infrared heating body, the heat insulator is at least partly housed in the housing cavity and spaced from the atomizing surface, the infrared heater is housed in the heat insulator, and The infrared rays generated by the infrared heating body can pass through the heat insulator and radiate to the atomizing surface.

An electronic atomization device, comprising a power supply assembly and any one of the atomizers described above, the atomizer being connected to the power supply assembly.

The details of one or more embodiments of the invention are set forth in the accompanying drawings and the description below. Other features, objects and advantages of the invention will be apparent from the description, drawings and claims.

Description of drawings

In order to better describe and illustrate embodiments and/or examples of the inventions disclosed herein, reference may be made to one or more of the accompanying drawings. Additional details or examples used to describe the drawings should not be considered limitations on the scope of any of the disclosed inventions, the presently described embodiments and/or examples, and the best mode of these inventions currently understood.

Fig. 1 is a three-dimensional structural schematic diagram of an atomizer provided by an embodiment;

Fig. 2 is a three-dimensional cross-sectional structural schematic diagram of the atomizer shown in Fig. 1;

Fig. 3 is a planar cross-sectional structural schematic diagram of the atomizer shown in Fig. 1;

Fig. 4 is a schematic diagram of the first three-dimensional structure of the infrared heating body in the nebulizer shown in Fig. 1;

Fig. 5 is a schematic diagram of a second example of the three-dimensional structure of the infrared heating body in the nebulizer shown in Fig. 1 .

Detailed ways

In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

It should be noted that when an element is referred to as being “fixed” to another element, it can be directly on the other element or there can also be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. The terms "inner", "outer", "left", "right" and similar expressions are used herein for the purpose of description only and do not represent the only embodiment.

Referring to FIG. 1 , FIG. 2 and FIG. 3 , an atomizer 10 provided by an embodiment of the present invention is used to atomize a liquid atomizing medium to form an aerosol that can be inhaled by a user. The atomizer 10 includes a substrate 100, a heating assembly 200, and an electrode 300. The heating assembly 200 includes a heat insulator 210 and an infrared heating body 220. The electrode 300 is electrically connected to the infrared heating body 220. When the electrode 300 energizes the infrared heating body 220 , the infrared heating body 220 generates heat and radiates outward through infrared rays.

Referring to Fig. 1, Fig. 2 and Fig. 3, in some embodiments, the substrate 100 is made of a porous ceramic material, so there are a large number of micropores inside the substrate 100 and has a certain porosity. In view of the existence of micropores, on the one hand, it can The liquid atomizing medium can be transported in the micropores, so that the base 100 has a transmission effect on the atomizing medium; on the other hand, the micropores have a certain storage function for the atomizing medium, so that the base 100 has a buffer for the atomizing medium effect. The base body 100 can be substantially cylindrical, such as a cylindrical structure, and the base body 100 is provided with a receiving cavity 110, which can be a cylindrical cavity, that is, the cross section of the receiving cavity 110 is circular. The base body 100 has an atomizing surface 120 , which defines the boundary of the receiving chamber 110 , and at this moment, the atomizing surface 120 is ring-shaped. Generally speaking, the atomizing surface 120 can be understood as the inner wall surface of the receiving cavity 110 . The natural frequency of the substrate 100 is approximately the same as the frequency of the infrared rays produced by the infrared heating element 220. When the heat generated by the infrared heating element 220 radiates on the atomizing surface 120 through the infrared rays, the atomizing surface 120 will absorb a large amount of infrared rays, making the mist The atomizing surface 120 absorbs a large amount of heat generated by the infrared heating body 220 to heat up, and then the atomizing medium on the atomizing surface 120 is atomized to form an aerosol.

Referring to FIG. 1 , FIG. 2 and FIG. 3 , in some embodiments, the heat insulator 210 may also have a substantially cylindrical structure, and the heat insulator 210 is at least partially accommodated in the receiving cavity 110 of the base body 100 . The insulator 210 is provided with an accommodating cavity 211, and the accommodating cavity 211 and the accommodating cavity 110 are not connected to each other and are isolated. All the placement chambers 211 are located within the scope of the receiving chamber 110 . The infrared heating body 220 is accommodated in the accommodating cavity 211 , that is, the infrared heating body 220 is contained in the heat insulating body 210 , so that the atomizing surface 120 is disposed around the infrared heating body 220 . In view of the space between the heat insulator 210 and the atomizing surface 120, there is a gap 130 between the heat insulator 210 and the atomizing surface 120, so that the heat insulator 210 and the entire heating assembly 200 form a non-contact relationship with the atomizing surface 120; In fact, the gap 130 is a part of the receiving cavity 110 . The width dimension of the spacing gap 130 is evenly set, that is, the width dimension of the spacing gap 130 is equal everywhere, the value range of the width dimension A of the spacing gap 130 can be 0.3mm to 1.5mm, and the specific value of the width dimension A can be 0.3mm , 1.0mm or 1.5mm, etc. The heat insulator 210 has an inner surface 212 and an outer surface 213, the inner surface 212 defines the boundary of the accommodating cavity 211, the outer surface 213 is arranged close to the atomizing surface 120, and the above-mentioned gap 130 is located between the outer surface 213 and the atomizing surface 120 , it can be understood that the atomizing surface 120 and the outer surface 213 jointly define the boundary of the space 130 , and the aerosol generated by atomization on the atomizing surface 120 will be discharged into the space 130 first.

The insulator 210 has two important properties, the first being that the insulator 210 has a low thermal conductivity. When the infrared heating body 220 generates heat in the accommodating cavity 211, the heat will be difficult to conduct in the heat insulator 210, that is, the heat will be difficult to transfer from the inner surface 212 to the outer surface 213, so the heat generated by the infrared heating body 220 will be difficult to transfer to the outer surface 213. The solid medium is transferred to the outer surface 213 of the heat insulator 210 through heat conduction, causing the temperature of the outer surface 213 of the heat insulator 210 to be much lower than that of the infrared heating body 220 , ensuring the heat insulation effect of the heat insulator 210 . The second is that the natural frequency of the heat insulator 210 is quite different from the frequency of the infrared rays generated by the infrared heating element 220 , and has a penetrating function for infrared rays. Therefore, when the infrared rays generated by the infrared heating body 220 penetrate the heat insulator 210, the heat insulator 210 will hardly absorb the infrared rays, making it difficult for the heat insulator 210 to absorb the heat in the infrared rays, so the infrared heating body 220 will generate heat. It is difficult to transmit the heat of the heat insulator 210 to the outer surface 213 of the heat insulator 210 through thermal radiation, which also causes the temperature of the outer surface 213 of the heat insulator 210 to be much lower than the temperature of the infrared heating body 220, and can also ensure the insulation of the heat insulator 210 heat effect.

In some embodiments, the infrared heating body 220 is spaced apart from the inner surface 212 of the heat insulator 210, that is, the infrared heating body 220 forms a non-contact relationship with the inner surface 212, so as to prevent the heat generated by the infrared heating body 220 from being directly transmitted to the heat insulator 210, the accommodating cavity 211 can be vacuumized to form a vacuum state, thereby eliminating the fluid medium in the accommodating cavity 211, preventing the heat generated by the infrared heating body 220 from being transmitted to the inner surface 212 through heat conduction in the fluid medium and It is further transmitted to the outer surface 213 to further improve the heat insulation effect of the heat insulator 210 . The accommodating cavity 211 can also be filled with halogen gas. On the one hand, halogen gas has a low thermal conductivity, and the heat generated by the infrared heating body 220 is difficult to conduct to the inner surface 212 and further to the outer surface 213 through the halogen gas, thereby improving heat insulation. The heat insulation effect of the body 210. On the other hand, it can protect the infrared heating body 220 to prevent the infrared heating body 220 from oxidizing during the heating process and affecting its own service life.

Referring to Fig. 1, Fig. 2 and Fig. 3, in some embodiments, the thermal insulator 210 includes a quartz tube 214 and a thermal insulation plug 215, the quartz tube 214 can be a hollow transparent tubular structure, and the number of thermal insulation plugs 215 can be There are two heat-insulating plugs 215 to block the upper and lower ends of the lumen of the quartz tube 214 , so that a part of the lumen forms the accommodating cavity 211 . The heat insulating plug 215 can be made of ceramic material, the quartz tube 214 is made of quartz material, and the heat insulating plug 215 and the quartz tube 214 form a detachable connection relationship. The electrode 300 passes through the heat insulating plug 215 at the lower end of the quartz tube 214 and protrudes into the accommodating chamber 211 , so that the electrode 300 is electrically connected to the infrared heater 220 . The wall thickness of quartz tube 214 can be 0.4mm to 1.0mm, and the cross-sectional dimension of quartz tube 214 can be 1.5mm to 3.0mm, for example, when quartz tube 214 is cylindrical, the cross-sectional ruler of quartz tube 214 is quartz tube The outer diameter of the quartz tube 214, the wall thickness of the quartz tube 214 is half of the difference between the outer diameter and the inner diameter of the quartz tube 214. The thickness of the quartz tube 214 is relatively thin, coupled with the inherent properties of the material of the quartz tube 214 , so the infrared rays generated by the infrared heater 220 can effectively penetrate the quartz tube 214 and be absorbed by the atomizing surface 120 . Of course, the thickness of the heat insulating plug 215 can be relatively large, thereby effectively preventing infrared rays from penetrating the heat insulating plug 215, and preventing the heat generated by the infrared heater 220 from radiating through the heat insulating plug 215 to the outside of the atomizing surface 120. area, to ensure that all the heat is radiated to the atomizing surface 120, thereby improving the energy utilization rate of the infrared heating body 220.

The heat insulating plug 215 has a heat insulating surface 215a, which defines part of the boundary of the accommodating chamber 211, that is, the heat insulating surface 215a constitutes a part of the inner surface 212, that is, the inner surface 212 includes the heat insulating surface 215a. The heat insulator 210 also includes a reflective layer attached to the heat insulating surface 215a. The reflective layer has a reflective effect on infrared rays. When a part of the infrared rays generated by the infrared heating body 220 radiates towards the heat-insulating plug 215, the reflective layer reflects all the infrared rays to further prevent the infrared rays from penetrating the heat-insulated plug 215, thereby further The energy utilization rate of the infrared heating body 220 is improved. In other embodiments, the entire heat insulator 210 is made of quartz material and integrally formed to form the accommodating cavity 211 .

Referring to Fig. 3, Fig. 4 and Fig. 5, in some embodiments, the infrared heating body 220 is made of high-temperature resistant materials such as nickel-chromium alloy, iron-chromium alloy or tungsten alloy, and the infrared heating body 220 includes an infrared material film. Of course, the infrared heating body 220 can also be made of conductive infrared high-radiation materials such as carbon fiber. The infrared heating body 220 is helical. For example, the infrared heating body 220 includes a sheet-shaped spiral piece 221; The cross-sectional dimensions of the spiral strips 222 can be equal and range in value from 0.1 mm to 0.15 mm. By arranging the helical piece 221 or a plurality of helical strips 222 arranged side by side, the surface area of the infrared heating body 220 can be reasonably increased, thereby increasing the radiation area of the infrared heating body 220 to infrared rays. The helical diameter of the infrared heating body 220 can be 1.2 mm to 2.5 mm, the pitch of the infrared heating body 220 can be 1.0 mm to 1.5 mm, the height of the infrared heating body 220 can be 3 mm to 6 mm, and the height of the infrared heating body 220 can be understood as The axial length of the infrared heating body 220 . When the infrared heating body 220 generates heat, the heating temperature of the infrared heating body 220 may be 800°C to 1200°C.

When the nebulizer 10 is working, the outside air enters the gap 130 from the lower end of the storage chamber 110 to carry aerosol, and leaves the entire storage chamber 110 from the upper end of the storage chamber 110 to be absorbed by the user, as indicated by the dotted arrow in Figure 3 gas flow path.

If the atomizer 10 adopts the design mode of directly attaching the heating resistance wire to the atomization surface 120, for this design mode, the heating resistance wire is energized to generate heat, and the heat is passed to the atomization surface 120 through heat conduction, and the atomization surface The atomizing medium on the 120 absorbs the heat of the heating resistance wire and atomizes to form an aerosol, but this design mode has at least the following defects:

One is that the heat is transmitted through heat conduction, so that the opportunities of heat absorption in each area on the atomizing surface 120 are not equal, so the heat is unevenly distributed on the atomizing surface 120, for example, the area on the atomizing surface 120 close to the heating resistance wire absorbs There is more heat to form a high-temperature area with a higher temperature. The atomization medium located in this high-temperature area will be burnt due to excessive temperature, resulting in a burnt smell in the aerosol and affecting the user's puffing taste. At the same time, the area away from the heating resistance wire absorbs less heat and forms a low-temperature area with a lower temperature. The atomization medium located in this low-temperature area will not be fully atomized due to the low temperature, making the atomized particles in the aerosol larger. And affect the taste of smoking. Of course, the temperature in the low-temperature region cannot even reach the atomization temperature, so the atomization medium cannot be atomized, so that the atomization amount of the atomization medium per unit time is reduced, resulting in a low aerosol concentration.

The second is that the heating resistance wire is usually made of heavy metal materials. During the working process of the heating resistance wire, a series of physical and chemical reactions will occur between the heating resistance wire and the atomizing medium attached to it at high temperature, so that the heavy metal elements enter the aerosol If it is absorbed by the user, it will cause damage to the user's health and cause the safety risk of the entire atomizer 10 . At the same time, the atomization medium attached to the heating resistance wire will absorb heat during the atomization process, which will cause the temperature of the heating resistance wire to drop, so the heating resistance wire has temperature fluctuations during operation, which will also affect the suction of the aerosol Taste.

The third is that in view of the generation of aerosol, there are two sources. One is the area where the heating resistance wire is not arranged on the atomization surface 120. This area is recorded as the atomization area of the atomization surface 120. The atomization medium in the atomization area The larger the supply, the more aerosols are formed. The other is the surface area of the heating resistance wire. Because the heating resistance wire is usually made of dense metal or alloy material, the penetration and transmission capacity of the heating resistance wire to the atomization medium is lower than that of the atomization core, so the atomization of this surface area The amount of medium supply is less and less aerosol is formed. In fact, the aerosol produced by the atomized medium on the surface area of the heating resistance wire is negligible relative to the aerosol produced by the atomized medium on the atomized area of the atomized surface 120 . Therefore, the heating resistance wire occupies a considerable part of the area of the atomizing surface 120, so that the effective area of the atomizing area is smaller than the total area of the atomizing surface 120, and finally it is difficult to increase the amount of atomization of the atomizing medium per unit time, which affects the gas flow rate. The concentration of the sol.

Fourth, part of the heat of the heating resistance wire will be transferred to the area outside the atomizing surface 120, thereby reducing the heat utilization rate of the heating resistance wire, thereby affecting the atomization amount and aerosol concentration of the atomization medium per unit time.

The fifth is that the air flow directly contacts with the heating resistance wire and absorbs the heat of the heating resistance wire, so that the heating resistance wire produces heat loss and there is a phenomenon of temperature fluctuation. At the same time, the air flow absorbs the heat of the heating resistance wire and heats up, resulting in discomfort to the user due to the high temperature of the sucked gas.

Referring to Fig. 1, Fig. 2 and Fig. 3, for the atomizer 10 of the above-mentioned embodiment, since the heating component 200 is spaced apart from the atomizing surface 120, the heat generated by the heating component 200 is radiated to the atomizing surface 120 through infrared rays, so that The atomizing surface 120 absorbs heat and heats up, thereby effectively preventing the entire heating assembly 200 from directly adhering to the atomizing surface 120 . In this way, at least the following beneficial effects can be formed:

First, the heating element 200 is arranged at a distance from the atomizing surface 120 , which can prevent the heating element 200 from contacting the atomizing surface 120 and prevent the heating element 200 from occupying a part of the atomizing surface 120 . The total area of the atomization surface 120 is the effective area of the atomization area, so that the effective area of the atomization area is greatly increased, thereby increasing the amount of atomization of the atomization medium per unit time and the concentration of the aerosol, and finally improving user experience. At the same time, the atomizing surface 120 has a curved surface structure. Compared with the atomizing surface 120 with the same area and in a flattened state, the atomizing surface 120 is actually in a coiled state, so that the installation space occupied by the atomizing surface 120 is greatly reduced. , so that the structure of the atomizer 10 is more compact.

Second, the heating element 200 will not be in direct contact with the atomizing medium on the atomizing surface 120, preventing physical and chemical reactions between the heating element 200 and the atomizing medium at high temperatures, and preventing the heavy metal elements in the heating element 200 from entering the aerosol to be eliminated. The user can absorb it and improve the safety of using the atomizer 10 . At the same time, the atomization medium is separated from the heating assembly 200, preventing the atomization medium from absorbing heat during atomization and reducing the heating temperature of the heating assembly 200, avoiding fluctuations in the heating temperature of the heating assembly 200, and ensuring that the temperature of the heating assembly 200 is always consistent. Improve the inhalation taste of the aerosol.

Third, the heat on the heating element 200 is transmitted to the atomizing surface 120 through infrared radiation. Compared with the way of heat conduction, each area on the atomizing surface 120 has a more equal opportunity to absorb heat, ensuring that the heat is evenly distributed in the fog. On the atomization surface 120, the temperature on the atomization surface 120 is kept consistent to prevent local high temperature and local low temperature on the atomization surface 120, thereby avoiding the generation of burnt smell and large particles that affect the taste of the pump. At the same time, the width of the gaps 130 is set uniformly, which can further improve the uniformity of heat absorption opportunities of the atomizing surface 120, improve the uniformity of heat distribution on the atomizing surface 120, and prevent local high temperature on the atomizing surface 120.

Fourth, the heat insulator 210 is accommodated in the housing cavity 110, the infrared heating body 220 is contained in the heat insulator 210, and the atomizing surface 120 is arranged around the infrared heating body 220, so that most of the heat generated by the infrared heating body 220 is absorbed The atomizing surface 120 absorbs heat, prevents the heat from radiating to the space outside the atomizing surface 120 and affects the utilization rate of energy, and increases the atomization amount and aerosol concentration of the atomizing medium per unit time. At the same time, since the heating assembly 200 is surrounded by the atomizing surface 120 , the heat insulating body 210 or reflector corresponding to the heating assembly 200 can be omitted, thereby simplifying the structure of the atomizer 10 .

Last but not least:

Fifth, the heat insulator 210 has good heat insulation performance. When the gas flows through the gap 130, the gas will not be able to directly contact the infrared heating body 220 to absorb its heat, effectively preventing the infrared heating body 220 from absorbing heat due to the gas. As a result, the heating temperature fluctuates, further ensuring that the temperature of the infrared heating element 220 remains constant. Simultaneously, the thermal insulation performance of heat insulator 210 makes the temperature on its outer surface 213 far lower than the temperature of infrared heater 220, and the gas flowing through above-mentioned gap 130 will be difficult to absorb heat from outer surface 213 and heat up, avoids The sucked gas is too hot to cause discomfort to the user. Moreover, the heat insulator 210 and the gas flowing through the gap 130 are difficult to absorb the heat of the infrared heating body 220, so that most of the heat generated by the infrared heating body 220 is radiated to the atomizing surface 120, thereby improving the infrared heating body 220 and the whole The energy utilization rate of the atomizer 10.

The present invention also provides an electronic atomization device, which includes a power supply assembly and the above-mentioned atomizer 10, the atomizer 10 is arranged on the power supply assembly, and the lower end of the electrode 300 is electrically connected to the power supply assembly, so that the power supply assembly The infrared heating body 220 is powered through the electrode 300 .

The technical features of the above-mentioned embodiments can be combined arbitrarily. To make the description concise, all possible combinations of the technical features in the above-mentioned embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, should be considered as within the scope of this specification.

The above-mentioned embodiments only express several implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but should not be construed as limiting the patent scope of the invention. It should be noted that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent for the present invention should be based on the appended claims.

Claims (20)

An atomizer, characterized in that it comprises: The base body is provided with a receiving cavity and has an atomizing surface for defining the boundary of the receiving cavity; and The heating assembly includes a heat insulator and an infrared heating body, the heat insulator is at least partly housed in the housing cavity and spaced from the atomizing surface, the infrared heater is housed in the heat insulator, and The infrared rays generated by the infrared heating body can pass through the heat insulator and radiate to the atomizing surface. The atomizer according to claim 1, wherein the heat insulator is provided with an accommodating cavity isolated from the accommodating cavity, and the insulator has an inner surface defining a boundary of the accommodating cavity , the infrared heating body is located in the accommodating cavity and spaced apart from the inner surface. The atomizer according to claim 2, wherein the accommodating cavity is in a vacuum state or filled with halogen gas. The atomizer according to claim 2, wherein the heat insulator includes a detachably connected quartz tube and a heat insulating plug, and the quartz tube and the heat insulating plug jointly enclose the container. The chamber is installed, and the infrared heating body generates infrared rays that pass through the quartz tube. The atomizer according to claim 4, wherein the inner surface includes a heat insulating surface on the heat insulating plug, and the heat insulating body further includes a reflective layer, and the reflective layer is attached to the heat insulating plug. on the insulating surface. The atomizer according to claim 4, characterized in that there are two heat insulating plugs, and the two heat insulating plugs respectively block the upper and lower ends of the lumen of the quartz tube. The atomizer according to claim 4, wherein the heat insulating plug is made of ceramic material. The atomizer according to claim 4, wherein the thickness of the heat insulating plug is greater than the wall thickness of the quartz tube. The atomizer according to claim 4, wherein the quartz tube is a transparent tube. The atomizer according to claim 4, wherein the wall thickness of the quartz tube is half of the difference between the outer diameter and the inner diameter of the quartz tube. The atomizer according to claim 10, wherein the wall thickness of the quartz tube is 0.4mm to 1.0mm, and the outer diameter of the quartz tube is 1.5mm to 3.0mm. The atomizer according to claim 1, wherein the infrared heating body is in a spiral shape; the infrared heating body includes a sheet-shaped spiral piece, or the infrared heating body includes a plurality of strips arranged shaped spiral. The atomizer according to claim 12, characterized in that, the helical diameter of the infrared heating body is 1.2 mm to 2.5 mm, the pitch of the infrared heating body is 1.0 mm to 1.5 mm, and the infrared heating body The height is 3mm to 6mm. The atomizer according to claim 1, characterized in that there is a space between the heat insulator and the atomizing surface, and the width of the space is uniform and its value ranges from 0.3 mm to 1.5 mm. mm. The atomizer according to claim 1, wherein the base body is made of porous ceramic material. The atomizer according to claim 1, characterized in that, the heating temperature of the infrared heating body is 800°C to 1200°C. The atomizer according to claim 1, wherein the natural frequency of the substrate is approximately equal to the frequency of the infrared rays generated by the infrared heating body, and the natural frequency of the heat insulator is substantially equal to the frequency of the infrared heating body. The frequencies of the generated infrared rays are not equal but have a set difference. The atomizer according to claim 1, wherein the storage cavity is a cylindrical cavity, and all parts of the heat insulator used to accommodate the infrared heating body are located in the storage cavity. The atomizer according to claim 1, wherein the infrared heating body is made of nickel-chromium alloy, iron-chromium alloy or tungsten alloy material, and the infrared heating body includes an infrared material film located on the outermost layer layer. An electronic atomization device, characterized by comprising a power supply assembly and the atomizer according to any one of claims 1 to 19, the atomizer being connected to the power supply assembly.

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