Patent Description:
Aerosol is a colloidal dispersion system formed by solid or liquid small particles dispersing and suspending in a gas medium. Since the aerosol may be absorbed by a human body through the respiratory system, a new alternative absorption method is provided for a user. For example, atomization devices that generate an aerosol from atomization liquid such as a medical drug may be used in different fields such as medical treatment, to deliver an inhalable aerosol to the user and replace conventional product forms and absorption methods.

There is an uneven heat generation problem in atomization assemblies used by some existing atomization devices, leading to excessively high or low local heat, thereby causing dry burning or e-liquid explosion, and affecting the use experience of the electronic atomization devices.

An atomization assembly according to the preamble of claim <NUM> is disclosed in <CIT> and <CIT>.

Based on this, it is necessary to provide an atomization assembly which can achieve a technical effect of preventing uneven heat generation from affecting an atomization effect.

According to the present invention, an atomization assembly is provided, including:.

In an embodiment, the mesh includes a plurality of heating wires and a plurality of connecting wires, where the plurality of heating wires are arranged at intervals in an axial direction of the sleeve, each of the plurality of heating wires extends longitudinally in a circumferential direction of the sleeve, and each of the plurality of connecting wires connects two adjacent heating wires to form a plurality of grids;
wherein a circumferential grid width of the region of the mesh corresponding to the window is less than a circumferential grid width of the remaining regions of the mesh.

In an embodiment, at least one window is a cutting slot extending in the axial direction of the sleeve, and the liquid guiding unit includes a main liquid guiding part arranged in the accommodating cavity and a cutting part extending into the cutting slot;
wherein a positive connection portion and a negative connection portion are provided respectively on two ends of the mesh in the circumferential direction of the sleeve, the positive connection portion and the negative connection portion are arranged at intervals in the circumferential direction of the sleeve to form a heating notch in communication with the main liquid guiding part, and the heating notch and the cutting part are aligned, staggered, or opposite to each other in the circumferential direction of the sleeve.

In an embodiment, the heating notch and the cutting part are arranged opposite to each other in the circumferential direction of the sleeve; and a circumferential grid width of a region of the mesh located on two sides of the heating notch is greater than a circumferential grid width of the remaining regions of the mesh.

In an embodiment, the heating notch and the cutting part are aligned in the circumferential direction of the sleeve; and a circumferential grid width of a region of the mesh located on two sides of the heating notch is less than a circumferential grid width of the remaining regions of the mesh.

In an embodiment, the heating notch and the cutting part are staggered in the circumferential direction of the sleeve at an angle from <NUM>° to <NUM>°; and a circumferential grid width of a region of the mesh that is close to the cutting part is less than a circumferential grid width of the remaining regions.

In an embodiment, the mesh includes a plurality of heating wires and a plurality of connecting wires, where the plurality of heating wires are arranged at intervals in an axial direction of the sleeve, each of the plurality of heating wires extends longitudinally in a circumferential direction of the sleeve, and each of the plurality of connecting wires connects two adjacent heating wires to form a plurality of grids;
wherein an axial grid length of the mesh gradually increases from an end of the mesh close to the base to an end thereof away from the base.

In an embodiment, the mesh includes a plurality of heating wires, where the plurality of heating wires are arranged at intervals in an axial direction of the sleeve, each of the plurality of heating wires extends longitudinally in the circumferential direction of the sleeve, and a wire diameter of each of the plurality of heating wires of the mesh gradually decreases from an end of the mesh close to the base to an end thereof away from the base.

According to an aspect of this application, an atomizer is provided, including a liquid storage cavity and the foregoing atomization assembly.

According to another aspect of this application, an electronic atomization device is provided, including a power supply component and the foregoing atomizer, where the power supply component and the atomizer are electrically connected.

According to the foregoing atomization assembly, the heating efficiency of different regions of the mesh is adjusted by adjusting the single grid area of the mesh according to a position of the window or a distance relative to the base, such that the atomization liquid in a region that liquid guiding is relatively sufficient in the liquid guiding unit can be fully atomized. Therefore, a generated aerosol has a good taste. In addition, the mesh is prevented from being overheated and burnt in a case that the liquid guiding is insufficient, and the service life of the mesh is prolonged.

Electronic atomization device; <NUM>. Power supply component; <NUM>. Atomizer; <NUM>. Atomization assembly; <NUM>. Mesh; <NUM>. Heating wire; <NUM>. Connecting wire; <NUM>. Grid; <NUM>. Positive connection portion; <NUM>. Negative connection portion; <NUM>. Heating notch; <NUM>. Liquid guiding unit; <NUM> Main liquid guiding part; <NUM>. Cutting part; <NUM>, Seat unit; <NUM>. Base; <NUM>. Sleeve; 4154a. Accommodating cavity; 4154b. Cutting slot; 4154c. Liquid inlet hole; <NUM>. Outer liquid guiding unit; <NUM>. liquid inlet tube; <NUM>. Liquid inlet; <NUM>. Atomization tube; <NUM>. Liquid storage cavity; <NUM>. Atomization channel; <NUM>. Mounting base.

To make the foregoing objectives, features, and advantages of the present invention more comprehensible, detailed description is made to specific implementations of the present invention below with reference to the accompanying drawings. In the following description, many specific details are described for fully understanding the present invention. However, the present invention may be implemented in many other manners different from those described herein. A person skilled in the art may make similar improvements without departing from the scope of the present invention as defined by the appended claims.

In the description of the present invention, it should be understood that, orientation or position relationships indicated by terms such as "longitudinal", "length", "width", "thickness", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", and "circumferential" are orientation or position relationships shown based on the accompanying drawings, and are merely used for describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element should have a particular orientation or be constructed and operated in a particular orientation, and therefore, should not be construed as a limitation on the present invention.

In addition, the terms "first" and "second" are used merely for the purpose of description, and shall not be construed as indicating or implying relative importance or implying a quantity of indicated technical features. Therefore, features defining "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the present invention, unless otherwise explicitly specified, "a plurality of" means at least two, such as two or three.

In the present invention, unless otherwise explicitly specified and defined, terms such as "mounted", "connected", "connection", and "fixed" should be understood in broad sense, for example, the connection may be a fixed connection, a detachable connection, or an integral connection; or the connection may be a mechanical connection or an electrical connection; or the connection may be a direct connection, an indirect connection through an intermediary, or internal communication between two elements or a mutual action relationship between two elements, unless otherwise specified explicitly. A person of ordinary skill in the art can understand specific meanings of the foregoing terms in the present invention according to a specific situation.

In the present invention, unless otherwise explicitly specified or defined, a first feature "on" or "under" a second feature may be that the first feature is in direct contact with the second feature, or the first feature is in indirect contact with the second feature through an intermediary. Moreover, the first feature "over", "above" and "up" the second feature may be that the first feature is directly above or obliquely above the second feature, or simply indicates that a horizontal height of the first feature is higher than that of the second feature. The first feature "under", "below" and "down" the second feature may be that the first feature is directly below or obliquely below the second feature, or simply indicates that a horizontal height of the first feature is lower than that of the second feature.

It should be noted that, when a component is referred to as "being fixed to" or "being disposed on" another component, the component may be directly on another component, or there may be an intermediate component. When a component is considered to be "connected to" another component, the component may be directly connected to another component, or an intermediate component may also be present. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in this specification are only for the purpose of illustration but not indicate a unique implementation.

Referring to <FIG>, an embodiment of the present invention provides an electronic atomization device <NUM>. The electronic atomization device <NUM> includes a power supply component <NUM> and an atomizer <NUM>. The power supply component <NUM> is electrically connected to the atomizer <NUM>. The atomizer <NUM> is configured to store liquid-state atomization liquid and can atomize the liquid-state atomization liquid under an action of electric energy of the power supply component <NUM> to generate an aerosol for a user to inhale.

As shown in <FIG>, the atomizer <NUM> includes an atomization assembly <NUM>, an atomization tube <NUM>, and a mounting base <NUM>. The atomization tube <NUM> has a hollow housing-like structure, and an accommodating cavity, a liquid storage cavity <NUM>, and an atomization channel <NUM> are provided in the atomization tube <NUM>. The liquid storage cavity <NUM> is provided surrounding the atomization channel <NUM> to store the liquid-state atomization liquid. The accommodating cavity is provided at one end of the liquid storage cavity <NUM> for mounting the atomization assembly <NUM> and the mounting base <NUM>. The atomizer <NUM> is connected to a power supply component through the mounting base <NUM>. The atomization assembly <NUM> is configured to atomize the atomization liquid. In this way, the atomization liquid in the liquid storage cavity <NUM> enters the atomization assembly <NUM> and is atomized by the atomization assembly <NUM>, an aerosol generated through the atomization flows out from the atomizer <NUM> through the atomization channel <NUM> to be inhaled by the user. As shown in <FIG>, the atomization assembly <NUM> includes a seat unit <NUM>, a mesh <NUM> that is accommodated in the seat unit <NUM>, a liquid guiding unit <NUM> that is accommodated in the seat unit <NUM> and covers an outside of the mesh <NUM>, and an outer liquid guiding unit <NUM> and a liquid inlet tube <NUM> that are sequentially connected to an outside of the seat unit <NUM>. The liquid-state atomization liquid in the atomizer <NUM> can enter the liquid guiding unit <NUM> through the liquid inlet tube <NUM>, the outer liquid guiding unit <NUM>, and the seat unit <NUM> sequentially, and finally reach a surface of the mesh <NUM>. The mesh <NUM> can heat and atomize the atomization liquid to generate an aerosol.

The mesh <NUM> of the atomization assembly <NUM> is wound around an axis that extends in a first direction to form a shape of a cylinder. A structure of the mesh <NUM> is described below by taking a flat mesh <NUM> in an unfolded state as an example.

As shown in <FIG>, the mesh <NUM> has a long-strip net structure, which includes a plurality of heating wires <NUM>, a plurality of connecting wires <NUM>, a positive connection portion <NUM>, and a negative connection portion <NUM>. The positive connection portion <NUM> and the negative connection portion <NUM> are electrically connected to a positive electrode and a negative electrode of the power supply component <NUM> respectively to supply power to the heating wires <NUM>. Certainly, it should be understood that the positive electrode and the negative electrode of the positive connection portion <NUM> and the negative connection portion <NUM> may be exchanged, and the "positive" and "negative" used herein are merely relative concepts and do not limit the connection portions. The connecting wire <NUM> is configured to connect two adjacent heating wires <NUM> and can improve the strength of the mesh <NUM>. The heating wire <NUM> can generate heat under an action of electric energy to atomize the atomization liquid.

Specifically, the plurality of heating wires <NUM> are arranged at intervals in a first direction (such as the direction X in <FIG>), and each of the plurality of heating wires <NUM> tortuously extends in a second direction (such as the direction Y in <FIG>) to form wave peaks and wave troughs that are arranged alternately. The wave peaks and wave troughs of every two adjacent heating wires <NUM> are opposite to each other in the first direction, and the wave peak of each of the plurality of heating wires <NUM> is connected to a wave trough of an adjacent heating wire <NUM> that is close to the wave peak through a connecting wire <NUM>, and the wave trough of each of the plurality of heating wires <NUM> is connected to a wave peak of another adjacent heating wire <NUM> that is close to the wave trough through another connecting wire <NUM>. The positive connection portion <NUM> and the negative connection portion <NUM> are respectively arranged on two opposite ends of the mesh <NUM> in the second direction, and are electrically connected to the power supply component <NUM> to supply power to the heating wires <NUM>.

In this way, every two adjacent heating wires <NUM> are connected through one connecting wire <NUM> to form a group of heating units, and each group of heating units includes a plurality of grids <NUM>. All of the heating units are arranged in sequence in a width direction of the mesh <NUM>, and all of the grids <NUM> in each group are arranged in sequence in the second direction of the mesh <NUM>. In the embodiment of this application, the heating wire <NUM> extends in an "M" shape, and the wave peak and wave trough of two adjacent heating wires <NUM> are spaced by a certain distance. Therefore, each grid <NUM> has a hexagonal structure, a width direction of the grid <NUM> extends in the second direction of the mesh <NUM>, and a length direction of the grid <NUM> extends in the first direction of the mesh <NUM>. A circumferential grid width hereinafter refers to a width of a single grid <NUM> in the second direction that can form an effective heating wire segment with an included angle less than <NUM>°, and an axial grid length refers to a length of a single grid <NUM> in the first direction that can form an effective heating wire segment with an included angle less than <NUM>°.

Further, one end of some connecting wires <NUM> is connected to the wave peak or wave trough of two heating wires <NUM> that is arranged at the outermost side of the mesh <NUM> in the second direction, and the other end of the connecting wires <NUM> extends in a direction away from the heating wire <NUM> in the second direction and is configured to apply pressure to a liquid guiding unit <NUM> to prevent the liquid guiding unit <NUM> from warping.

It should be understood that a shape of the heating wire <NUM> and a shape of the grid <NUM> are not limited thereto, and may be configured as required to meet different requirements. In some embodiments, the wave peaks and wave troughs of the heating wires <NUM> may further be in a shape of an arc, a part of an oval, or other shapes, and a minimum distance between two adjacent heating wires <NUM> may be zero or a certain distance. Therefore, the shape of the gird <NUM> may be a circle, an oval, another polygon, or an irregular pattern.

In order to wrap the heating wires <NUM> within the liquid guiding unit <NUM>, the mesh <NUM> and the liquid guiding unit <NUM> are wound in the first direction to be in a shape of a cylinder. The heating wires <NUM> of the mesh <NUM> are wrapped inside the liquid guiding unit <NUM>. The plurality of groups of heating units are arranged in sequence in the first direction, and each grid <NUM> in each group of the heating units is arranged in sequence in a circumferential direction. The positive connection portion <NUM> and the negative connection portion <NUM> extend out from an end portion of the cylindrical liquid guiding unit <NUM> to facilitate an electrical connection to the power supply component <NUM>. The positive connection portion <NUM> and the negative connection portion <NUM> are arranged at intervals in the circumferential direction to form a heating notch <NUM> that extends longitudinally in the first direction.

Still referring to <FIG>, the liquid guiding unit <NUM> is formed by a liquid guiding cotton. In order to absorb and provide enough atomization liquid for the mesh <NUM>, the liquid guiding cotton may have a plurality of layers. The plurality of layers of liquid guiding cottons are stacked in a thickness direction, and wrap the outside of the cylindrical mesh <NUM> in the first direction to form the cylindrical liquid guiding unit <NUM>. The liquid guiding unit <NUM> has a porous structure and wraps an outer layer of the mesh to transmit the atomization liquid for the mesh <NUM>.

The seat unit <NUM> includes a base <NUM> and a sleeve <NUM>. Both the base <NUM> and the sleeve <NUM> have a substantially cylindrical structure. The sleeve <NUM> is connected to an end of the base <NUM> in an axial direction, the sleeve <NUM> has an accommodating cavity 4154a that is configured to accommodate the mesh <NUM> and the liquid guiding unit <NUM>. At least one window that is in communication with the accommodating cavity 4154a is provided on a side wall of the sleeve <NUM>, and the atomization liquid can enter the accommodating cavity 4154a through the window. In some embodiments, a plurality of windows are provided on the sleeve <NUM>, at least one window is a cutting slot 4154b that extends from one end to the other end in the first direction, and the remaining windows are circular liquid inlet holes 4154c. Specifically, in the following embodiments, four liquid inlet holes 4154c and one cutting slot 4154b are provided on the sleeve <NUM>, and the cutting slot 4154b is provided between two adjacent liquid inlet holes 4154c. In another embodiment, two liquid inlet holes 4154c and two cutting slots 4154b are provided on the sleeve <NUM>, and the two cutting slots 4154b are provided on two opposite sides in a circumferential direction of the sleeve <NUM>. It should be understood that the number and shape of the cutting slots 4154b and the liquid inlet holes 4154c, and positions at which the cutting slots 4154b and the liquid inlet holes 4154c are provided are not limited hereto, and may be configured as required to meet different requirements.

In this way, the liquid guiding unit <NUM> is mounted in the sleeve <NUM> and forms a cylindrical main liquid guiding part <NUM>, a redundant part of the liquid guiding unit <NUM> extends out of the seat unit <NUM> through the cutting slot 4154b and is cut off, a part remains in the cutting slot 4154b forms a cutting part <NUM> that protrudes from an outer peripheral surface of the main liquid guiding part <NUM>, and the cutting part <NUM> extends from one end of the main liquid guiding part <NUM> to the other end of the main liquid guiding part <NUM> in the axial direction of the main liquid guiding part <NUM>. The mesh <NUM> is attached to an inner surface of the main liquid guiding part <NUM> in the circumferential direction, and the heating notch <NUM> is in communication with the main liquid guiding part <NUM>, or the heating notch <NUM> and the cutting part <NUM> are overlapped.

The outer liquid guiding unit <NUM> is formed by a liquid guiding cotton, and the outer liquid guiding unit <NUM> wraps the outside of the sleeve <NUM> in the first direction for guiding the atomization liquid into the sleeve <NUM>.

The liquid inlet tube <NUM> has a cylindrical structure, and the liquid inlet tube <NUM> is sleeved outside the outer liquid guiding unit <NUM>. A plurality of liquid inlets <NUM> are provided on a side wall of the liquid inlet tube <NUM>, the plurality of liquid inlets <NUM> are arranged at intervals in the circumferential direction, and the atomization liquid outside the liquid inlet tube <NUM> can enter the outer liquid guiding unit <NUM> through the liquid inlets <NUM>. It should be understood that the number and the shape of the liquid inlets <NUM> and positions at which the liquid inlets are provided are not limited hereto, and may be set as required. As shown in <FIG>, in some embodiments, the outer liquid guiding unit <NUM> may not be provided in the atomization assembly <NUM>, the liquid inlet tube <NUM> is directly sleeved outside the seat unit <NUM>, and the atomization liquid outside the liquid inlet tube <NUM> may enter the liquid guiding unit <NUM> through the liquid inlets <NUM> and the liquid inlet holes 4154c.

Further, as an exemplary embodiment, when the outer liquid guiding unit <NUM> is provided in the atomization assembly <NUM>, each liquid inlet <NUM> of the liquid inlet tube <NUM> and each liquid inlet hole 4154c of the sleeve <NUM> are provided in a one-to-one correspondence, thereby enhancing a liquid guiding function. When the outer liquid guiding unit <NUM> does not exist in the atomization assembly <NUM>, each liquid inlet <NUM> of the liquid inlet tube <NUM> and each liquid inlet hole 4154c of the sleeve <NUM> are arranged in a staggered manner, so as to control a liquid guiding rate of the liquid guiding unit <NUM>.

In the foregoing atomization assembly <NUM>, due to an existence of the window on the sleeve <NUM>, the liquid guiding rates of parts of the liquid guiding unit <NUM> in the circumferential direction are different. Specifically, a region of the liquid guiding unit <NUM> that is arranged corresponding to the window has a faster liquid guiding rate and sufficient liquid supplying is ensured, while a region of the liquid guiding unit <NUM> that is away from the window has a slower liquid guiding rate and insufficient liquid supplying easily occurs. Generally, a middle position of the mesh <NUM> with an evenly set grid area in the circumferential direction is a high temperature region with a relatively high temperature, and two opposite ends thereof in the circumferential direction are low temperature regions with a relatively low temperature. Therefore, if the low temperature region of the mesh <NUM> is in contact with a region with a higher liquid guiding rate in the liquid guiding unit <NUM>, the atomization liquid cannot be fully atomized, and if the high temperature region of the mesh <NUM> is in contact with a region with a lower liquid guiding rate in the liquid guiding unit <NUM>, the mesh <NUM> may be burnt.

To minimize a difference of atomization effects due to different liquid guiding rates caused by the window provided on the sleeve <NUM>, in some embodiments of this application, a single grid area of a region of the mesh <NUM> corresponding to the window region is less than a single grid area of remaining regions of the mesh <NUM>. In this way, a less single grid area of the mesh <NUM> indicates a higher heating efficiency of the mesh per unit area, so that the region of the mesh <NUM> corresponding to the window has a relatively high heating efficiency and forms a high temperature region, thereby fully atomizing the atomization liquid that enters the liquid guiding unit <NUM> through the window, and therefore a generated aerosol has a good taste. In addition, a region of the mesh <NUM> that is away from the window has a relatively low heating efficiency and forms a low temperature region, which can prevent the mesh <NUM> from being overheated and burnt when the liquid guiding is insufficient, and the service life of the mesh <NUM> is prolonged.

It should be noted that grids <NUM> of the region of the mesh <NUM> corresponding to the window may include not only a grid <NUM> that faces the window in a radial direction, but further include a grid <NUM> arranged at an edge of the window and a grid <NUM> that is close to the window, and the atomization liquid heated by the grids <NUM> is mainly from a corresponding window thereof.

Specifically, in some embodiments, an area of the grid <NUM> is adjusted by changing a circumferential grid width of the grid <NUM>. Specifically, a circumferential grid width of the region of the mesh <NUM> corresponding to the window is less than a circumferential grid width of the remaining regions of the mesh <NUM>.

Further, since the cutting part <NUM> is formed by stacking a plurality of layers of liquid guiding cottons in a radial direction of the main liquid guiding part <NUM>, the atomization liquid may quickly enter the main liquid guiding part <NUM> from a gap between two adjacent layers of liquid guiding cottons. As a result, the liquid guiding rate of a side of the liquid guiding unit <NUM> that is provided with the cutting part <NUM> is faster and liquid supplying is the most sufficient, and the liquid guiding rate of the other side of the liquid guiding unit <NUM> that faces away from the cutting part <NUM> in the circumferential direction is relatively slower and the liquid supplying is insufficient. In addition, different assembling manners lead to different relative positions of the cutting slot 4154b and the heating notch <NUM> of the mesh <NUM>. However, a temperature near the heating notch <NUM> is lower, and a temperature of a side that is away from the heating notch <NUM> is higher, so that atomization effects are different. Therefore, according to a position relationship between the cutting part <NUM> and the heating notch <NUM>, this application adaptively adjusts circumferential grid widths of different regions of the mesh <NUM>, so that the liquid guiding rate of the liquid guiding unit <NUM> matches the heating efficiency of the mesh <NUM>.

As shown in <FIG>, in an embodiment of this application, the heating notch <NUM> and the cutting part <NUM> are opposite to each other in the circumferential direction of the sleeve <NUM>. The circumferential grid width of a single grid <NUM> of a region of the mesh <NUM> that is located on two sides of the heating notch <NUM> in the circumferential direction is greater and an overall arrangement is relatively sparse, and the circumferential grid width of the single grid <NUM> of a region that is away from the heating notch and is close to the cutting part is less and an overall arrangement is relatively tight.

In this way, the single grid area of the region of the mesh <NUM> that is located on two sides of the heating notch <NUM> is greater than the single grid area of the remaining regions of the mesh <NUM>. Therefore, the region of the mesh <NUM> that is located on two sides of the heating notch <NUM> forms a low temperature region with lower heating efficiency, and the region of the mesh <NUM> corresponding to the cutting part <NUM> forms a high temperature region with higher heating efficiency. The high temperature region of the mesh <NUM> my fully atomize the atomization liquid that flows out from the cutting part <NUM>, while the low temperature region of the mesh <NUM> will not be burnt and damaged due to insufficient liquid guiding.

It should be noted that opposite arrangement of the heating notch <NUM> and the cutting part <NUM> in the circumferential direction of the base not only includes a case that the heating notch <NUM> and the cutting part <NUM> are provided on two opposite ends in a radial direction, and the heating notch <NUM> and the cutting part <NUM> may be staggered in the circumferential direction of the base at an angle from <NUM>° to <NUM>°.

As shown in <FIG>, <FIG>, and <FIG>, in still another embodiment of this application, the heating notch <NUM> and the cutting part <NUM> are aligned in the circumferential direction of the sleeve <NUM>. The circumferential grid width of a single grid <NUM> of the region of the mesh <NUM> that is located on two sides of the heating notch <NUM> is less and the overall arrangement is relatively tight, while the circumferential grid width of the single grid <NUM> that is away from the heating notch <NUM> is greater and the overall arrangement is relatively sparse.

In this way, the single grid area of the region of the mesh <NUM> that is located on two sides of the heating notch <NUM> is less than the single grid area of the remaining regions of the mesh <NUM>. Therefore, the region of the mesh <NUM> that is located on two sides of the heating notch <NUM> forms a high temperature region with higher heating efficiency, and the region of the mesh <NUM> that is away from the heating notch <NUM> forms a low temperature region with lower heating efficiency. The high temperature region of the mesh <NUM> may fully atomize the atomization liquid that flows out from the cutting part <NUM>, while the low temperature region of the mesh <NUM> will not be burnt and damaged due to insufficient liquid guiding.

It should be noted that opposite arrangement of the heating notch <NUM> and the cutting part <NUM> in the circumferential direction of the base not only includes a case that the heating notch <NUM> and the cutting part <NUM> are exactly overlapped in the circumferential direction, and the heating notch <NUM> and the cutting part <NUM> may be staggered in the circumferential direction of the base at an angle that is less than <NUM>°.

As shown in <FIG>, in yet another embodiment of this application, the heating notch <NUM> and the cutting part <NUM> are staggered in the circumferential direction of the base at an angle from <NUM>° to <NUM>°. The circumferential grid width of the single grid <NUM> on one side of the mesh <NUM> that is close to the cutting part <NUM> from the heating notch <NUM> in the circumferential direction is smaller and the overall arrangement is relatively tight, and the circumferential grid width of the single grid <NUM> on the other side that is away from the cutting part <NUM> from the heating notch <NUM> in the circumferential direction is greater and the overall arrangement is relatively sparse.

In this way, the single grid area of the region of the mesh <NUM> that is close to the cutting part <NUM> is less than the single grid area of the remaining regions. Therefore, the region of the mesh <NUM> that is close to one side of the cutting part <NUM> forms a high temperature region with higher heating efficiency, and the region of the mesh <NUM> that is away from the cutting part <NUM> forms a low temperature region with lower heating efficiency. The high temperature region of the mesh <NUM> may fully atomize the atomization liquid that flows out of the cutting part <NUM>, and the low temperature region of the mesh <NUM> will not be burnt and damaged due to insufficient liquid guiding.

In conclusion, according to the relative position of the cutting part <NUM> and the heating notch <NUM>, a liquid guiding rate of each position of the liquid guiding unit <NUM> may be deduced, so as to adjust the single grid area of each region of the mesh <NUM>. For example, by reducing the circumferential grid width of a region of the mesh <NUM> corresponding to the main liquid guiding part <NUM> with a faster liquid guiding rate, and increasing the circumferential grid width of a region of the mesh <NUM> corresponding to the main liquid guiding part <NUM> with a slower liquid guiding rate, the purpose of improving a taste and prolonging the service life may be achieved.

In some embodiments, cool air flows from one end of the atomization assembly <NUM> that is close to the power supply component <NUM> to the other end that is away from the power supply component <NUM> in the first direction. A heating wire <NUM> that is arranged upstream of an airflow flow direction (close to the power supply component <NUM>) is easily cooled, while a heating wire <NUM> arranged downstream (away from the power supply component <NUM>) is prone to be overheated. As a result, the heating wire <NUM> arranged downstream of the airflow flow direction is prone to be burnt, which affects the service life of the heating wire <NUM>. In addition, due to the effect of gravity, the atomization liquid has a hydraulic difference in the first direction. Generally, hydraulic pressure on the end of the atomization assembly <NUM> that is close to the power supply component <NUM> is greater than hydraulic pressure on the end that is away from the power supply component <NUM>. Therefore, the liquid guiding rate of the end of the mesh <NUM> that is close to the power supply component <NUM> in the first direction is faster, so that the liquid guiding is more sufficient. To resolve the problem, as shown in <FIG>, a single grid area of a part of the mesh <NUM> that is close to the base <NUM> is less than a single grid area of a part of the mesh <NUM> that is away from the base <NUM>.

Specifically, in the first direction, an axial grid length of a single grid of the mesh <NUM> gradually increases from an end of the mesh <NUM> close to the base <NUM> to an end of the mesh <NUM> away from the base <NUM>, that is, a distance between every two adjacent heating wires <NUM> in the first direction gradually increases from one end that is close to the base <NUM> to the other end that is away from the base <NUM> (that is, h3<h2<h1 in <FIG>). In this way, a temperature of the end of the mesh <NUM> that is away from the base <NUM> is reduced, and dry burning due to insufficient liquid guiding is avoided. In addition, it is ensured that a part of the mesh <NUM> with a fast liquid guiding rate fully atomizes the atomization liquid, thereby improving a taste and the service life of the electronic atomization device.

It should be noted that the distance between the two adjacent heating wires <NUM> in the first direction is a distance between median lines (such as the dotted lines in <FIG>) of the two heating wires <NUM>.

It should be understood that, as an exemplary embodiment, the axial grid length of a single grid of the mesh <NUM> may be changed only in a local region according to the liquid guiding rate of the liquid guiding unit <NUM>, thereby accurately changing a temperature in the local region. Specifically, in some embodiments, an axial grid length of the region of the mesh <NUM> that is away from the heating notch in the circumferential direction is greater, and an axial grid length of the region of the mesh <NUM> that is close to the heating notch in the circumferential direction is smaller.

In some other embodiments, a wire diameter of the heating wire <NUM> of the mesh <NUM> gradually decreases from the end of the mesh <NUM> that is close to the base <NUM> to the end of the mesh <NUM> that is away from the base <NUM>, which may further adjust atomization effects of different regions of the mesh <NUM>. The wire diameter of the heating wire <NUM> is in direct proportion to a temperature thereof. The lower temperature of the heating wire <NUM>, the less wire diameter that may be designed of the heating wire <NUM>. Specifically, as shown in <FIG>, a diameter d of a heating wire <NUM> gradually increases from the end away from the base <NUM> to the end close to the base <NUM>, that is: d1≤d2≤d3≤d4, where d1<d4.

Claim 1:
An atomization assembly (<NUM>), comprising:
a seat unit (<NUM>) comprising a base (<NUM>) and a sleeve (<NUM>) connected to an end of the base (<NUM>), wherein the sleeve (<NUM>) has an accommodating cavity (4154a) and at least one window in communication with the accommodating cavity (4154a);
a mesh (<NUM>) connected to the base (<NUM>) and accommodated in the accommodating cavity (4154a); and
a liquid guiding unit (<NUM>) accommodated in the accommodating cavity (4154a) and covering an outside of the mesh (<NUM>), wherein the liquid guiding unit (<NUM>) is configured to guide atomization liquid that flows into the liquid guiding unit (<NUM>) through the window to the mesh (<NUM>),
characterised in that
a single grid area of a region of the mesh (<NUM>) corresponding to the window is less than a single grid area of remaining regions of the mesh (<NUM>); or
a single grid area of a part of the mesh (<NUM>) that is close to the base (<NUM>) is less than a single grid area of a part of the mesh (<NUM>) that is away from the base (<NUM>).