CN115486566A - electronic atomization device - Google Patents

Abstract

The invention relates to an electronic atomization device, which comprises a shell body and an atomization component. The atomization component is arranged in the installation cavity of the shell body, and a groove is opened on the inner wall of the installation cavity. There is a gap between the inner walls of the groove. The space is used to form an air layer capable of heat insulation, and the air layer can effectively reduce the heat transfer of the atomization component to the outer wall of the shell body. And because the air layer is formed by directly opening grooves on the inner wall of the installation cavity, the air layer is formed by reducing the wall thickness of the shell body, which will not increase the size of the shell body, which is beneficial to the electronic atomization device miniaturized design.

Description

electronic atomization device

technical field

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

Background technique

In a traditional electronic atomization device, the heating element is arranged in the casing, and the heating element generates aerosol by heating the atomizing medium, and then the heat of the heating element is conducted to the outside of the casing. Traditional electronic atomization devices generally have a heat insulation structure inside the casing, which will result in the need to increase the size of the casing to meet the installation of the heat insulation structure, which is not conducive to the miniaturization of the electronic atomization device.

Contents of the invention

Based on this, it is necessary to address the above problems and provide an electronic atomization device that can improve the heat insulation effect and facilitate miniaturization.

An electronic atomization device, the electronic atomization device includes a housing body and an atomization component, an installation cavity is formed in the housing body; the atomization component is arranged in the installation cavity; wherein, the installation cavity There is a groove on the inner wall of the installation cavity, and the groove is an annular groove around the inner wall of the installation cavity; there is a gap in the radial direction between the outer surface of the atomization assembly and the inner wall of the groove.

In one of the embodiments, the atomization component is elastically deformable in the radial direction.

In one of the embodiments, the difference between the radial dimension of the atomization assembly and the radial dimension of the installation cavity is 0-0.6 mm; the depth of the groove in the radial direction is 0.2 mm-0.4 mm.

In one of the embodiments, the atomization component includes a heating body and a heat insulation unit, the heat insulation unit is wrapped in the heat generation body, and the outer surface of the heat insulation unit and the inner wall of the groove There is a gap between them, and the heat insulation unit can be elastically deformed in the radial direction.

In one of the embodiments, the heat insulation unit includes a heat insulation layer and a heat equalization layer, the heat insulation layer is arranged adjacent to the heating element, the heat equalization layer is arranged outside the heat insulation layer, and the heat insulation layer The thermal layer is elastically deformable in radial direction.

In one embodiment, the heat insulating layer is an airgel layer; and/or, the heat spreading layer is a graphite layer.

In one of the embodiments, the axial length of the groove is greater than the axial length of the atomizing assembly.

In one embodiment, the difference between the axial length of the groove and the axial length of the atomization assembly is 1 mm to 20 mm.

In one embodiment, the connection between the inner wall of the groove and the inner wall of the installation cavity is transitionally connected by a tapered surface.

In one embodiment, the electronic atomization device further includes a battery assembly, the battery assembly is disposed on the housing body, and the battery assembly can be electrically connected to the atomization assembly.

The above-mentioned electronic atomization device, since the atomization component is arranged in the installation cavity of the shell body, and the inner wall of the installation cavity is provided with a groove, the groove is an annular groove around the inner wall of the installation cavity, so that the device located in the installation cavity There is a gap between the outer surface of the atomization component and the inner wall of the groove. The gap is used to form an air layer, and the air layer can effectively reduce the heat transfer of the atomization component directly to the outer surface of the shell body. And because the formation of the air layer is formed by directly opening grooves on the inner wall of the installation cavity, this realization method is to form the air layer by reducing the wall thickness of the shell body, which will not cause the size of the shell body to increase, which is beneficial to Miniaturized design of electronic atomization device.

Description of drawings

The accompanying drawings constituting a part of this application are used to provide further understanding of the present invention, and the schematic embodiments and descriptions of the present invention are used to explain the present invention, and do not constitute an improper limitation of the present invention.

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained based on these drawings without creative effort.

In addition, the drawings are not drawn on a 1:1 scale, and the relative sizes of the various elements are drawn in the drawings only as examples and not necessarily to true scale. In the attached picture:

Fig. 1 is a cross-sectional view of an electronic atomization device in an embodiment;

FIG. 2 is a partially enlarged view of the electronic atomization device shown in FIG. 1;

Fig. 3 is the enlarged view of place A in Fig. 2;

Fig. 4 is a schematic structural diagram of the atomization assembly in Fig. 1;

Fig. 5 is a cross-sectional view of the atomization assembly shown in Fig. 4;

Fig. 6 is a schematic structural view of the shell body in Fig. 1;

Fig. 7 is a sectional view of the shell body shown in Fig. 6;

FIG. 8 is a partially enlarged view of the shell body shown in FIG. 7 .

Explanation of reference signs:

10. Electronic atomization device; 110. Shell body; 111. Installation cavity; 112. Groove; 113. Installation port; 114. Accommodating cavity; 120. Atomization component; 121. Heating body; 123, atomization chamber; 124, heat insulation layer; 125, heat soaking layer; 130, connecting bracket; 140, battery assembly; 141, controller; 142, electric core.

detailed description

In order to make the above objects, features and advantages of the present invention more comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings. 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 can be implemented in many other ways different from those described here, and those skilled in the art can make similar improvements without departing from the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

Referring to FIG. 1 to FIG. 3 , an electronic atomization device 10 in an embodiment of the present invention is used to atomize an atomizing medium, and at least has a good heat insulation effect to ensure user experience. In this embodiment, the electronic atomization device 10 is used for atomizing a solid atomizing medium. In other embodiments, the electronic atomization device 10 can also be used to atomize a liquid atomizing medium.

Specifically, the electronic atomization device 10 includes a casing body 110 and an atomizing component 120 , an installation cavity 111 is formed in the casing body 110 , and the atomization component 120 is disposed in the installation cavity 111 . Wherein, the inner wall of the installation cavity 111 is provided with a groove 112, and the groove 112 is an annular groove around the inner wall of the installation cavity 111; with gaps.

Since the atomization assembly 120 is set in the installation cavity 111 of the shell body 110, and the inner wall of the installation cavity 111 is provided with a groove 112, the groove 112 is an annular groove around the inner wall of the installation cavity 111, so that the There is a gap between the outer surface of the atomization component 120 in the cavity 111 and the inner wall of the groove 112 . The space is used to form an air layer, which can effectively reduce the heat transfer of the atomization assembly 120 directly to the outer surface of the shell body 110 . And because the formation of the air layer is formed by directly opening the groove 112 on the inner wall of the installation cavity 111, one way of realization is to form the air layer by reducing the wall thickness of the shell body 110, which will not increase the size of the shell body 110. Large, which is conducive to the miniaturization design of the electronic atomization device 10 .

In one embodiment, the groove 112 is an annular groove around the inner wall of the installation cavity 111 , which can be understood as that the circumferential direction of the annular groove is consistent with the circumferential direction of the inner wall of the installation cavity 111 . In other embodiments, in the circumferential direction around the inner wall of the installation cavity 111, when the depth of the groove 112 is inconsistent, there may be a certain deviation between the circumferential direction of the annular groove and the circumferential direction of the inner wall of the installation cavity 111, as long as It is enough that there is a gap in the radial direction a between the outer surface of the atomization assembly 120 and the inner wall of the groove 112 .

Referring to FIGS. 3 to 5 , in one embodiment, the atomization assembly 120 includes a heating element 121 and a heat insulating unit 122 , the heat insulating unit 122 is wrapped outside the heating element 121 , and the outer surface of the heat insulating unit 122 and the groove 112 There is a gap between the inner walls. The thermal insulation unit 122 can further reduce the heat conduction from the heating element 121 to the shell body 110 . On the one hand, the heat loss of the heating element 121 can be effectively reduced, and on the other hand, the temperature of the shell body 110 can be reduced to improve user experience.

Specifically, an atomizing cavity 123 is formed in the heating element 121 , and the atomizing medium can be disposed in the atomizing cavity 123 so as to be heated and atomized through the heating element 121 . The heat insulation unit 122 covers the outside of the heating element 121 . Further, the heating element 121 has a cylindrical structure, and a cylindrical atomizing chamber 123 is formed in the heating element 121 of the cylindrical structure.

In other embodiments, the shape of the heating element 121 can be a prism structure, or other shapes, as long as the atomization cavity 123 can be formed to facilitate the atomization of the solid atomization medium.

In one embodiment, the heat insulation unit 122 includes a heat insulation layer 124 and a heat equalization layer 125 , the heat insulation layer 124 is disposed adjacent to the heating element 121 , and the heat equalization layer 125 is disposed outside the heat insulation layer 124 . By arranging the heat insulating layer 124 close to the heating element 121, the heat insulating layer 124 can effectively block the heat loss of the heating element 121, thereby ensuring the heating atomization efficiency of the heating element 121 on the atomizing medium. The heat equalizing layer 125 is set away from the heating element 125, so that the heat emitted by the heating element 121 through the heat insulating layer 124 can be evenly conducted on the heat equalizing layer 125, and then the heat equalizing layer 125 can pass through the gap between the inner wall of the groove 112 and the heat equalizing layer 125. The heat conducted by the air layer to the shell body 110 is uniform, so as to prevent the shell body 110 from being locally hot and affect the user experience.

In the traditional way, if soaking or heat insulation treatment is not performed, not only the heat energy consumption of the heating element 121 will increase, but also a high temperature concentration point will appear on the shell body 110, causing the local temperature of the shell body 110 to rise, which will affect the use. experience. If only the heat-spreading layer 125 is provided to avoid local heating of the housing body 110 , the heat loss of the heating element 121 will be increased, resulting in increased energy consumption of atomization of the heating element 121 .

In this embodiment, the number of layers of the heat insulating layer 124 is at least two, and each layer of heat insulating layer 124 is stacked along the radial direction a. By providing at least two heat insulating layers 124 , the heat dissipation path of the heating element 121 along the radial direction a can be effectively extended, thereby improving the heat insulation effect on the heating element 121 .

In one embodiment, the axial b length of the heat uniform layer 125 is greater than the axial b length of the heat insulating layer 124 . By lengthening the axial length b of the heat equalizing layer 125 , the heat equalizing effect can be better realized, thereby not only reducing the local temperature of the shell body 110 , but also improving the heat equalizing effect on the heat conducted to the shell body 110 . At the same time, by lengthening the axial length b of the heat equalizing layer 125 , the temperature of the atomizing chamber 123 can also be equalized to a certain extent, thereby improving the heat equalizing effect of the aerosol generated by atomization through the atomizing chamber 123 .

In this embodiment, the thermal insulation layer 124 is an airgel layer. Airgel refers to a nano-scale porous solid material formed by using a certain drying method to replace the liquid phase in the gel with the gas through the sol-gel method. Airgel has good thermal insulation effect. At the same time, the airgel layer also has a certain elastic deformation capacity. In other embodiments, the heat insulation layer 124 can also be a foam layer, a foam ceramic layer, a glass wool layer, or a phenolic resin layer, as long as it can play an effective heat insulation effect. Alternatively, the heat insulating layer 124 has at least two layers, and different layers may be made of different materials.

In one embodiment, the heat spreading layer 125 is a graphite layer. Graphite is resistant to high temperature, has high thermal conductivity, has good chemical stability at room temperature, and is resistant to acid, alkali and organic solvents; graphite can withstand drastic changes in temperature without damage when used at room temperature. The heat soaking through the graphite layer can effectively improve the heat soaking effect and ensure the structural stability of the atomizing component 120 . In other embodiments, the heat equalizing layer 125 may also be a steel layer, an aluminum layer, or the like.

Referring to FIG. 2 and FIG. 3 together, in one embodiment, the atomization component 120 can be elastically deformed along the radial direction a. When the atomization assembly 120 is installed into the installation cavity 111 , it is necessary to compress the atomization assembly 120 along the radial direction a. If the groove 112 is not provided, after the atomization assembly 120 is installed in the installation cavity 111, the inner wall of the installation cavity 111 and the atomization assembly 120 will have an interference fit, which will cause the atomization assembly 120 to be in a compressed state all the time. It will affect the performance of the atomization assembly 120 . In the present application, when the atomization assembly 120 is loaded into the installation cavity 111 by being compressed in the radial direction a, and is positioned in the groove 112 , the atomization assembly 120 can be stretched.

In this embodiment, the radial dimension of the atomization assembly 120 is greater than or equal to the radial dimension of the installation cavity 111 when not compressed. Specifically, the difference between the radial dimension of the atomization assembly 120 and the radial dimension of the installation cavity 111 under the condition of no compression is smaller than the radial depth of the groove 112 in the radial direction a. Furthermore, after the atomization assembly 120 is installed to the position corresponding to the groove 112 , the atomization assembly 120 will be stretched, which is beneficial to ensure the performance of the atomization assembly 120 . At the same time, there is still a gap between the outer surface of the stretched atomization assembly 120 and the inner wall of the groove 112 , and the gap can still effectively form an air layer to ensure the heat insulation effect.

In this embodiment, the radial dimension of the atomization assembly 120 is larger than the radial dimension of the installation cavity 111 under the condition of no compression, which can ensure the stability of the installation of the atomization assembly 120 in the installation cavity 111 and prevent the atomization assembly 120 from Get out of the installation cavity 111.

In this embodiment, the difference between the radial dimension of the atomization assembly 120 and the radial dimension of the installation cavity 111 is 0-0.6mm; the depth of the groove 112 in the radial direction a is 0.2mm-0.4mm. Wherein, the difference between the radial dimension of the atomizing assembly 120 and the radial dimension of the installation cavity 111 under the condition of no compression deformation is 0-0.6 mm. Specifically, the depth of the groove 112 in the radial direction a is 0.3 mm.

Since the radial dimension of the atomization assembly 120 is greater than or equal to the inner diameter of the installation cavity 111 under the condition of no compression, the difference between the outer diameter of the atomization assembly 120 and the inner diameter of the installation cavity 111 is 0-0.6mm, which can be understood as mist The difference between the atomization component 120 and the installation cavity 111 is 0-0.3 mm on one side without compression, so when the atomization component 120 is installed in the installation cavity 111, the outer surface of the atomization component 120 needs to be indented by 0 ~0.30mm, that is, the radius of the atomization assembly 120 is compressed by 0~0.30mm in the radial direction a. For example, if the difference between the outer diameter of the atomization assembly 120 and the inner diameter of the installation cavity 111 is 0.2 mm under the condition of no compression, and the depth of the groove 112 in the radial direction a is 0.3 mm, it is necessary to make the outer wall of the atomization assembly 120 Indent 0.1mm inwardly to fit into the installation cavity 11. Then, after the atomization assembly 120 is installed to the position corresponding to the groove 112 , after the atomization assembly 120 resumes stretching, a gap of 0.2 mm can be formed with the inner wall of the groove 112 , and an air layer with a thickness of 0.2 mm can be formed.

In this embodiment, since the groove 112 is an annular groove around the inner wall of the installation cavity 111, the entire circumferential outer surface of the atomization assembly 120 can be stretched and recovered, further ensuring the use of the atomization assembly 120 performance.

In one embodiment, the heat insulation unit 122 can be elastically deformed along the radial direction a. If the groove 112 is not provided, after the heat insulation unit 122 is installed in the installation cavity 111 , the heat insulation unit 122 will be uniformly compressed, which will affect the heat insulation performance of the heat insulation unit 122 . The heat insulation unit 122 can be stretched and recovered through the groove 112, and after stretching, there is still a gap between the heat insulation unit 122 and the inner wall of the groove 112, and an air layer is effectively formed by using the gap to ensure the heat insulation effect.

Further, the heat insulation layer 124 is elastically deformable in the radial direction a. In this embodiment, the airgel layer is elastically deformable in radial direction a. Since in this embodiment, the heat insulation layer 124 is an airgel layer, the use of the airgel layer can not only achieve an effective heat insulation effect, but also facilitate the elastic deformation of the atomization component 120 in the radial direction a, ensuring that the mist The UL assembly 120 can be effectively installed into the installation cavity 111.

In this embodiment, the heat spreading layer 125 is a graphite layer and is relatively thin, so that the heat spreading layer 125 has a certain degree of flexibility and can adapt to the elastic deformation of the heat insulating layer 124 in the radial direction a.

In one embodiment, the heat spreading layer 125 can be elastically deformed along the radial direction a. Specifically, the heat equalizing layer 125 can be made of heat-conducting silica gel, heat-conducting plastic, etc., which not only has better heat conduction effect, but also can achieve the purpose of elastic deformation along the radial direction a.

Further, the heat equalizing layer 125 can be a whole, such as a cylindrical structure, and the heat insulating layer 124 is located in the heat equalizing layer 125 . Certainly, in other embodiments, the heat equalizing layer 125 may also include at least two heat equalizing portions, and each heat equalizing portion is arranged along the circumferential direction of the heat insulating layer 124 .

In another embodiment, the heat equalizing layer 125 may also include at least two heat equalizing parts, each heat equalizing part is arranged along the circumferential direction of the heat insulating layer 124, and there is an active gap between at least two adjacent heat equalizing parts . In this embodiment, since the heat insulation layer 122 can be elastically deformed along the radial direction a, and in order to facilitate the elastic deformation of the heat insulation unit 122 along the radial direction a as a whole, in the state where the heat insulation unit 122 is not compressed Down, so that there will be movable gaps between at least two adjacent heat soaking parts. When the thermal insulation unit 122 is compressed in the radial direction, the movable gap gradually decreases or even disappears, so as to achieve the purpose of reducing the radial size of the thermal insulation unit 122 in the compressed state, so as to facilitate the installation of the thermal insulation unit 122 into the installation cavity 111 inside. Specifically, the heat equalizing layer 125 may be a hard heat equalizing structure, and the heat equalizing portion may be a hard structure.

Referring to Figure 2 and Figure 3, in one embodiment, the installation cavity 111 runs through one end of the shell body 110 to form an installation opening 113, there is a distance between the groove 112 and the installation opening 113, and the atomization component 120 is installed to the installation cavity through the installation opening 113 111 and located in the position opposite to the groove 112 . In this embodiment, the atomization chamber 123 communicates with the installation port 113 , and the solid atomization medium can pass through the installation port 113 in the atomization chamber 123 .

In one embodiment, the atomization assembly 100 further includes a connection bracket 130 , the connection bracket 130 is connected to the atomization assembly 120 , and the connection bracket 130 is clamped at the installation opening 113 . The installation stability of the atomization assembly 120 in the installation cavity 111 is further ensured by providing the connecting bracket 130 .

Referring to FIG. 3 , in one embodiment, the junction between the inner wall of the groove 112 and the inner wall of the installation cavity 111 is transitionally connected by a tapered surface. The smooth transition between the inner wall of the groove 112 and the inner wall of the installation cavity 111 is realized by the tapered surface, which can prevent the atomization assembly 120 from encountering a step in the installation cavity 111 and improve the protection effect on the atomization assembly 120 . In other embodiments, the inner wall of the groove 112 and the inner wall of the installation cavity 111 may be directly connected in a stepped transition. Alternatively, the inner wall of the groove 112 and the inner wall of the installation cavity 111 may be transitionally connected by a concave arc surface.

In one embodiment, the length b in the axial direction of the groove 112 is greater than the length b in the axial direction of the atomization component 120 . When the atomization assembly 120 is installed into the installation cavity 111 and is positioned at the position of the groove 112, the axial b length of the groove 112 is greater than the axial b length of the atomization assembly 120, so that the atomization assembly 120 can be completely The diastolic recovery further ensures the use efficiency of the atomization component 120 .

In this embodiment, the difference between the length b in the axial direction of the groove 112 and the length b in the axial direction of the atomization assembly 120 is 1 mm˜20 mm. On the one hand, avoid too large difference between the axial b length of the groove 112 and the axial b length of the atomization assembly 120, resulting in too long groove 112, which in turn results in a thinner wall thickness of the shell body 110 where the groove 112 is provided. The part is longer, which affects the structural stability of the shell body 110; on the other hand, by controlling a certain difference range, it is ensured that sufficient space is provided for the relaxation recovery of the atomization component 120 . The difference between the axial b length of the groove 112 and the axial b length of the atomization assembly 120 is affected by the axial b length of the atomization assembly 120, as the axial b length of the atomization assembly 120 is longer, the required The larger the diastolic recovery space, the longer the axial b length of the groove 112 will be in the range of 1 mm to 20 mm.

Referring to Figures 6 to 8, in one embodiment, the housing body 110 is a cylindrical structure, and an installation cavity 111 is formed in the housing body 110, the shape of the installation cavity 111 is consistent with the shape of the housing body 110, and the axis direction of the installation cavity 111 is in line with the The length direction of the shell body 110 is consistent.

In one embodiment, the shell body 110 may have a cylindrical shape. For example, the shell body 110 may have a cylindrical shape, and the corresponding shell body 110 may have a circular cross section. In other embodiments, the shell body 110 can also have a columnar structure of other shapes, and the cross-section of the shell body 110 can be oval, triangular, square, rhombus, trapezoidal, pentagonal, hexagonal, or octagonal. In this embodiment, the cross-section of the housing body 110 is approximately triangular in shape.

In one embodiment, the housing body 110 may be made of any suitable material or combination of materials. Examples of suitable materials include metals, alloys, plastics or composite materials containing one or more of those materials, or thermoplastic materials suitable for food or medical applications, such as polypropylene or polyethylene, and the like. In certain embodiments, the material forming the housing body 110 is relatively light and not easily broken.

In another embodiment, the shell body 110 is made of a material with a heat insulation effect, which can further reduce heat conduction from the atomization component 120 to the shell body 110 .

Referring to FIG. 1 and FIG. 2 again, in one embodiment, the electronic atomization device 10 further includes a battery assembly 140 disposed on the casing body 110 , and the battery assembly 140 can be electrically connected to the atomization assembly 120 . The battery assembly 140 can effectively provide electric energy for the atomization assembly 120 , so as to facilitate the heating and atomization of the atomization assembly 120 . Specifically, the battery assembly 140 is electrically connected to the heating element 121 .

In one embodiment, the housing body 110 is further formed with an accommodating cavity 114 . The accommodating cavity 114 is located in the axial direction of the installation cavity 111 and communicates with the installation cavity 111 . The battery assembly 140 is disposed in the accommodating cavity 114 . The accommodating cavity 114 can effectively provide an installation space for the battery assembly 140 . Specifically, the accommodating cavity 114 is located on a side of the installation cavity 111 away from the installation opening 113 . In this embodiment, the radial dimension of the accommodating cavity 114 is consistent with that of the installation cavity 111 , and the accommodating cavity 114 is coaxial with the installation cavity 111 . Furthermore, a cavity structure with uniform radial dimensions is formed in the shell body 110, wherein the part for installing the atomizer assembly 120 is the installation cavity 111, and the part for installing the battery component 140 is the accommodating cavity 114, further reducing the weight of the shell body 110. structural complexity.

In one embodiment, the battery assembly 140 includes a controller 141 and a battery cell 142 , the battery cell 142 is electrically connected to the controller 141 , and the heating element 121 is electrically connected to the controller 141 . The controller 141 can control the electrical transmission from the battery cell 142 to the heating element 121 .

Specifically, the controller 141 is located between the atomization assembly 120 and the electric core 142 , and a charging connector is formed on the end of the electric core 142 away from the controller 141 . Charging the battery cell 142 is facilitated through the charging connector.

The various technical features of the above-mentioned embodiments can be combined arbitrarily. To make the description concise, all possible combinations of the various 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 pointed out that those skilled in the art can make several modifications and improvements 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.

In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial b ", "radial", "circumferential" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying the referred device Or elements must have a certain orientation, be constructed and operate in a certain orientation, and thus should not be construed as limiting the invention.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

In the present invention, unless otherwise clearly specified and limited, terms such as "installation", "connection", "connection" and "fixation" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection , or integrated; it may be mechanically connected or electrically connected; it may be directly connected or indirectly connected through an intermediary, and it may be the internal communication of two components or the interaction relationship between two components, unless otherwise specified limit. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

In the present invention, unless otherwise clearly specified and limited, the first feature may be in direct contact with the first feature or the first and second feature may be in direct contact with the second feature through an intermediary. touch. Moreover, "above", "above" and "above" the first feature on the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. "Below", "beneath" and "beneath" the first feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is less horizontally than the second feature.

It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or there may 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. As used herein, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions are for the purpose of illustration only and are not intended to represent the only embodiment.

Claims (10)

1. An electronic atomization device, comprising:

the shell comprises a shell body, wherein a mounting cavity is formed in the shell body; and

the atomization assembly is arranged in the mounting cavity;

the inner wall of the mounting cavity is provided with a groove, and the groove is an annular groove which surrounds the inner wall of the mounting cavity; a gap is formed between the outer surface of the atomization assembly and the inner wall of the groove in the radial direction.

2. The electronic atomizer device of claim 1, wherein said atomizing assembly is elastically deformable in a radial direction.

3. The electronic atomizer device of claim 2, wherein the difference between the radial dimension of said atomizing assembly and the radial dimension of said mounting chamber is between 0 and 0.6mm; the depth of the groove in the radial direction is 0.2 mm-0.4 mm.

4. The electronic atomizer of claim 2, wherein said atomizing assembly comprises a heat-generating body and a heat-insulating unit, said heat-insulating unit is disposed outside said heat-generating body, and a gap is provided between an outer surface of said heat-insulating unit and an inner wall of said recess, said heat-insulating unit is elastically deformable in a radial direction.

5. The electronic atomizing device according to claim 4, characterized in that the heat insulating unit includes a heat insulating layer and a soaking layer, the heat insulating layer being disposed adjacent to the heating body, the soaking layer being disposed outside the heat insulating layer, the heat insulating layer being elastically deformable in a radial direction.

6. The electronic atomization device of claim 5 wherein the thermal insulation layer is an aerogel layer; and/or the heat equalizing layer is a graphite layer.

7. The electronic atomizing device of any one of claims 1 to 6, wherein an axial length of the groove is greater than an axial length of the atomizing assembly.

8. The electronic atomizer device of claim 7, wherein the difference between the axial length of said recess and the axial length of said atomizing assembly is in the range of about 1mm to about 20mm.

9. The electronic atomizer device according to any one of claims 1 to 6, wherein the junction between the inner wall of the recess and the inner wall of the mounting chamber is connected by a conical surface transition.

10. The electronic atomization device of any of claims 1-6 further comprising a battery assembly disposed on the housing body, the battery assembly being electrically connectable to the atomization assembly.

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