WO2025016412A1

WO2025016412A1 - Heating element, atomization device and atomization equipment

Info

Publication number: WO2025016412A1
Application number: PCT/CN2024/106043
Authority: WO
Inventors: Liheng TANG; Zhijun Jiang; Xiaofeng Peng
Original assignee: Shanghai QV Technologies Co Ltd
Current assignee: Shanghai QV Technologies Co Ltd
Priority date: 2023-07-18
Filing date: 2024-07-17
Publication date: 2025-01-23
Anticipated expiration: 2026-01-18

Abstract

A heating element (22) includes a substrate (221) and a heating film (222). The heating film (222) is disposed on the substrate (221). The heating element (22) is defines slits (223) passing through the substrate (221) and the heating film (222), along the thickness direction of the heating film (222).

Description

HEATING ELEMENT, ATOMIZATION DEVICE AND ATOMIZATION EQUIPMENT

CROSS-REFERENCE TO PRIOR APPLICATION

Priority is claimed to Chinese Patent Application No. 202310884697.2 AND No. 202321904398.2, filed on July. 18, 2023, the entire disclosure of which is hereby incorporated by reference herein.

FIELD

The present disclosure relates to the technical field of atomization and, in particular, to a heating element, an atomization device, and an atomization equipment.

BACKGROUND

Currently, atomization devices are being more and more widely used. The atomization device can heat aerosol precursor, and the aerosol precursor is thereby atomized into aerosol. In related art, the atomization device includes a heating element. The heating element defines circular holes arranged in an array. The aerosol precursor can be transported through the circular holes. However, the heating uniformity of the heating element can be improved.

SUMMARY

The embodiments of the present application disclose a heating element, an atomization device, and an atomization equipment.

The heating element, according to the embodiments of the present application, includes a substrate and a heating film. The heating film is disposed on the substrate. The heating element defines slits passing through the substrate and the heating film, along the thickness direction of the heating film.

In the heating element, according to the embodiments of the present application, the width of the slits is small, so that the temperature difference between the aerosol precursor located at the width center of the slits and that at the edge of the slits is small. The aerosol precursor can be atomized more evenly.

In some embodiments, the substrate includes a glass substrate.

In some embodiments, the ratio between the length and the width of each of the slits is greater than 2.

In some embodiments, the width of the slit is ranged from 5μm to 200μm.

In some embodiments, the length of the slit is ranged from 10μm to 4000μm.

In some embodiments, the slit is linear-shaped or curve-shaped.

In some embodiments, the number of the slits is multiple, and each of the slits have essentially the same shape and/or the same size.

In some embodiments, the center line in the depth direction of the slit is essentially straight, and the center line extends in a direction substantially consistent with the thickness direction of the heating element.

In some embodiments, the number of the slits is multiple, and the multiple slits are linearly arranged along the width direction of the slits.

In some embodiments, any two adjacent slits are equally spaced apart from each other.

In some embodiments, the distance between the adjacent slits in the middle region of the heating element is less than that of the adjacent slits in other regions of the heating element.

In some embodiments, the distance between two adjacent slits is ranged from 10μm to 100μm.

In some embodiments, the ends of the multiple slits are flushed with each other along the width direction of the slits.

In some embodiments, the slits are arranged in multiple columns along a first direction of the heating element. Each column of the slits includes a number of the slits arranged at intervals along a second direction of the heating element. The first direction is perpendicular to the second direction.

In some embodiments, in the two adjacent columns of the slits, one column of the slits is staggered with the other column of the slits along the first direction.

In some embodiments, the ends of the slits are semi-circular. In the two adjacent columns of the slits, the centers of the ends of one column of the slits and the center of the ends of the other column of the slits form an equilateral triangle.

In some embodiments, the heating element includes a middle portion and an edge portion connected to the middle portion. The middle portion defines the slit. The perimeter of the cross section of the through-hole is less than that of the cross section of the slit.

An atomization device, according to the embodiments of the present application, includes a housing and the heating element of any of the above embodiments. The heating element is arranged in the housing.

An atomization equipment, according to the embodiments of the present application, includes a hose and the atomization device of the above embodiments. The atomization device is connected to the host.

BRIEF DESCRIPTION OF THE DRAWINGS

The foregoing and/or additional aspects and advantages of the present disclosure will become apparent and easily understood from the description of the embodiments through the accompanying drawings below, wherein:

FIG. 1 is a perspective schematic view of an atomization equipment according to an embodiment of the present disclosure;

FIG. 2 is a perspective schematic view of an atomization device according to an embodiment of the present disclosure;

FIG. 3 is a cross-sectional schematic view of the atomization device of FIG. 2, along a line of III-III;

FIG. 4 is a perspective schematic view of a part of an atomization device according to an embodiment of the present disclosure;

FIG. 5 is a perspective schematic view of a heating element according to an embodiment of the present disclosure;

FIG. 6 is a cross-sectional schematic view of a heating element according to an embodiment of the present disclosure;

FIG. 7 is a schematic view of slits of the heating element, showing the first arrangement of the slits;

FIG. 8 is a partial schematic view of the slits of FIG. 7;

FIG. 9 is a schematic view of slits of the heating element, showing the second arrangement of the slits;

FIG. 10 is a schematic view of slits of the heating element, showing the third arrangement of the slits;

FIG. 11 is a partial schematic view of the slits of FIG. 10;

FIG. 12 is a planar schematic view of the heating element, according to an embodiment of the present disclosure;

FIG. 13 is a planar schematic view of the heating element, according to another embodiment of the present disclosure.

Description of labels for elements:

Atomization equipment 1000, host 200, atomization device 100, housing 10, liquid storage chamber 11, sidewall 111, atomization core 20, core holder 21, liquid outlet channel 211, aerosol outlet channel 213, heating element 22, substrate 221, heating film 222, slit 223, central axis 224, center line 225, middle portion 226, edge portion 227, through hole 228, first sealing element 30, base 40, second sealing element 30, electrode pole 60.

DETAILED DESCRIPTION

Embodiments of the present disclosure will be described in detail in the following descriptions, examples of which are shown in the accompanying drawings, in which the same or similar elements and elements having same or similar functions are denoted by like reference numerals throughout the descriptions. The embodiments described herein with reference to the accompanying drawings are explanatory and illustrative, which are used to generally understand the present disclosure. The embodiments shall not be construed to limit the present disclosure.

In the present disclosure, unless specified or limited otherwise, the first characteristic is “on” or “under” the second characteristic refers to the first characteristic and the second characteristic can be direct or via media indirect mountings, connections, and couplings. And, the first characteristic is “on” , “above” , “over” the second characteristic may Referring to the first characteristic is right over the second characteristic or is diagonal above the second characteristic, or just Referring to the horizontal height of the first characteristic is higher than the horizontal height of the second characteristic. The first characteristic is “below” or “under” the second characteristic may Referring to the first characteristic is right over the second characteristic or is diagonal under the second characteristic, or just Referring to the horizontal height of the first characteristic is lower than the horizontal height of the second characteristic.

The following disclosure provides a plurality of different embodiments or examples to implement the different structures of this application. In order to simplify the disclosure of this application, specific examples of components and settings will be described below. Alternatively, they are only examples and are not intended to limit this application. In addition, this application may repeat reference numbers and/or reference letters in different examples for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and/or settings discussed. In addition, the present disclosure provides examples of various specific processes and materials, but ordinary technical personnel in this field can be aware of the application of other processes and/or the use of other materials.

Referring to FIG. 1, the present application discloses an atomization equipment 1000. The atomization equipment 1000 is an equipment which generates aerosol by heating aerosol precursor or other means. The atomization equipment 1000 includes a host 200 and an atomization device 100. The atomization device 100 is connected to the host 200. The host 200 can provide electric energy for the atomization device 100. It should be noted that the aerosol precursor in some embodiments of this application can be any liquid which can form aerosol. In addition, the aerosol precursor can also be medical atomization reagent or other types of the aerosol precursor. The specific type of the aerosol precursor is not limited in this application. Users can inhale the aerosol through mouth suction or nose suction.

The aerosol precursor in some embodiments of this application can be a high viscosity aerosol precursor. The viscosity of the aerosol precursor can be greater than 10000cps at room temperature (25℃) . In some embodiments of this application, the viscosity of the aerosol precursor can be measured by the GBT 17473.5-1998 test methods of precious metal pastes used for thick film microelectronics.

Referring to FIG. 2 and FIG. 3, the atomization device 100, according to some embodiments of the present application, includes a housing 10 and an atomization core 20. The atomization core 20 is mounted in the housing 10. In particular, the housing 10 is a basic component of the atomization device 100, and can receive other elements of the atomization device 10. The housing 10 defines a liquid storage chamber 11, and the aerosol precursor is accommodated in the liquid storage chamber 11. The atomization core 20 is a component used to form aerosols from the aerosol precursor. The atomization core 20 can heat the aerosol precursor, and the aerosol precursor is thereby atomized into aerosol.

Referring to FIG. 3 and FIG. 4, the atomization core 20 includes a core holder 21 and a heating element 22. The heating element 22 is mounted on the core holder 21. In particular, the core holder 21 is a component used to fix the heating element 22. the core holder 21 has the functions of bearing the heating element 22 and sealing the liquid storage chamber 11. The heating element 22 is a component used to generate heat for atomizing the aerosol precursor.

Referring to FIG. 4, the core holder 21 defines a liquid outlet channel 211 and an aerosol outlet channel 213. The liquid outlet channel 211 is a channel for the aerosol precursor flowing from the liquid storage chamber 11 to the heating element 22. Under the influence of gravity, the aerosol precursor enters the liquid outlet channel 211 through one end of the liquid outlet channel 211, and flows to the heating element 22 through the other end of the liquid outlet channel 211.

The aerosol outlet channel 213 is a channel which is configured to lead the aerosol generated from the aerosol precursor atomized by the heating element 22 out of the core holder 21. In other words, the aerosol formed by the aerosol precursor can flow to the outside of the core holder 21 through the aerosol outlet channel 213.

The aerosol outlet channel 213 and the liquid outlet channel 211 are crossed and spaced apart from each other. For example, the liquid outlet channel 211 is arranged on a first side of the core holder 21, and the aerosol outlet channel 213 is arranged on a second side of the core holder 21. The first side is perpendicular to the second side. As shown in the orientation of FIG. 4, the liquid outlet channel 211 is arranged on the left side and the right side of the core holder 21, and the aerosol outlet channel 213 is arranged on the front side and the rear side of the core holder 21.

It is understood that the core holder 21 and the heating element 22 are installed in the housing 10.

Referring to FIG. 5 and FIG. 6, in some embodiments, the heating element 22 includes a substrate 221 and a heating film 222 mounted on the substrate 221. The heating element 22 defines slits 223 passing through the substrate 221 and the heating film 222, along the thickness direction of the heating film 222.

Thus, the width of the slits 223 is small, so that the temperature difference between the aerosol precursor located at the width center of the slits 223 and at the edge of the slits 223 is small. The aerosol precursor can be atomized more evenly.

In particular, the substrate 221 can be used as a carrier of the heating film 222. The substrate 221 can be made of glass, dense ceramic and other materials, or the substrate 221 can include a glass substrate 221 and a ceramic substrate 221. This application does not further restrict the specific materials of substrate 221.

In the case that the substrate 221 is made of glass, the substrate 221 is insulating to prevent the heating element 22 from generating heat as a whole and atomizing the entire atomizing matrix in the liquid storage chamber 11. In addition, the material cost of the glass substrate 221 is low, and it is easy to be formed, which can reduce the manufacturing cost of the heating element 22. The substrate 221 can be square, elliptic and other shapes. In the case that the base 221 is a square sheet, the length and width of the substrate 221 can be 6mm*3mm respectively.

The heating film 222 is used to convert electrical energy into heat energy. The heating film 222 can be made of metal, alloy and other conductive and easy to be heated materials. For example, the material of the heating film 222 can be gold, silver, platinum, palladium, palladium copper alloy, gold and silver platinum alloy, gold and silver alloy, titanium and zirconium alloy, palladium and silver alloy, gold and platinum alloy, or stainless steel, etc. The heating film 222 can be arranged on a surface of the substrate 221 by printing, electroplating, coating, or sputtering, etc. The slits 223 can be manufactured by laser processing or etching, etc.

The cross section in this application refers to a plane perpendicular to the thickness of the heating element 22, and the cross-section area is the area enclosed by the outline of an object or a feature in the cross section.

Referring to FIG. 7 and FIG. 8, in some embodiments, the ratio (L/W) between the length L and the width W of each of the slits 223 is greater than 2. For example, the aspect ratio of the slit 223 is 3, 10, 50, 100, 200, and so on. The length L of the slit 223 is much larger than the width W of the slit 223, so that the perimeter of the slit 223 is longer than that of the slit 223 and circular holes with the same cross-sectional area, thereby making it easier for the aerosol precursor to be transported through the slit 223 to the surface of the heating film 222.

It should be noted that the length L of the slit 223 is the maximum dimension of the slit 223 when the slit 223 is extended, and the width W of the slit 223 is the dimension along a direction perpendicular to the central axis 224 of the slit 223.

Also referring to FIG. 8, in some embodiments, the width of the slit 223 is ranged from 5μm to 200μm. For example, the width range of the slit 223 can be 5μm-150μm, 5μm-50μm, 30μm-100μm, or 50μm-80μm, etc. For another example, the width W of the slit 223 can be 5μm, 15μm, 50μm, 100μm, 150μm, or 200μm, etc.

When the width W of the slit 223 is less than 5μm, the slit 223 is difficult to be formed. Thus, the heating element 22 is difficult to be manufactured, and the aerosol precursor is difficult to pass through the slit 223. When the width W of the slit 223 is greater than 200μm, the width of the slit 223 is too large, which is easy to cause uneven temperature distribution between the center of the slit 223 and the edge of the slit 223. Therefore, when the width W of the slit 223 is ranged between 5μm and 200μm, the slit 223 is not only easy to be manufactured, but also the temperature difference of the aerosol precursor located at the center of the slit 223 and the edge of the slit 223 can be smaller, and the aerosol precursor can be atomized more uniform.

It should be noted that in the same slit 223, the slit 223 can have an equal width at any locations, or the slit 223 can have different widths at different locations.

Referring to FIG. 7 and FIG. 8, in some embodiments, the length of the slit 223 is ranged from 10μm to 4000μm. For example, the length range of the slit 223 can be 10μm-4000μm, 500μm-3500μm, 800μm-3000μm, 1000μm-2000μm, or 1200μm-1500μm. For another example, the length L of the slit 223 can be 10μm, 200μm, 500μm, 1000μm, 2000μm, 3000μm, or 4000μm, etc.

When the length L of the slit 223 is less than 10μm, the flowing capacity of the aerosol precursor in the heating element 22 may be insufficient, and the aerosol precursor is difficult to be transported to an atomizing surface of the heating element 22. When the length L of the slit 223 is greater than 4000μm, the size of the heating element 22 is large, thereby causing a large overall volume of the atomization device 100. Thus, the miniaturization of the atomization device 100 cannot be achieved. Therefore, when the length L of the slit 223 is in the range of 10μm-4000μm, the flowing capacity of the aerosol precursor in the heating element 22 can be increased, and the size of the heating element 22 is suitable, which is conducive to the miniaturization of the atomizing device 100.

In some embodiments, the slit 223 is linear-shaped or curve-shaped. In an example shown in FIG. 7, the slit 223 is linear-shaped, and the linear-shaped slit 223 makes the pattern on the surface of the heating film 222 regular, so that the aerosol precursor flowing to the surface of the heating film 222 is more uniform, which is conducive to improve the uniformity of the atomization of the heating element 22. In an example shown in FIG. 9, the slit 223 is curve-shaped. The curve-shaped slit 223 can adjust the resistance of the heating film 222, optimize the current path, and make the heating film 222 heat more evenly, thus improving the uniformity of atomization ofheating element 22.

Also referring to FIG. 8, the shape of the slit 223 is defined by reference to the central axis 224 of the slit 223. If the central axis 224 of the slit 223 is straight, then the slit 223 is linear-shaped. If the central axis 224 of the slit 223 is a curve, then the slit 223 is curve-shaped. The curve may be wavy line, arc line, etc. This application does not limit the specific shape of the curve.

In some embodiments, the number of the slits 223 is multiple, and each of the slits 223 have essentially the same shape and/or the same size. For example, the shapes of any two slits 223 are basically the same. For another example, the dimensions of any two slits 223 are basically the same. For alternative example, any two slits 223 have the same shape and the same size. Thus, the arrangement structure of the multiple slits 223 is consistent, thereby making the aerosol precursor flow to the surface of the heating film 222 more uniform, which is conducive to improve the uniformity of the atomization of the heating element 22.

In the example shown in FIG. 7, all of the slits 223 are linear-shaped and have the same dimensions, such as lengths and widths. In the example shown in FIG. 9, all of the slit 223 are curve-shaped and have the same dimensions, such as lengths and widths.

In some embodiments, any two slits 223 may have the different shapes. For example, some of the slits 223 are linear-shaped, and some of the slits 223 are curve-shaped. In some embodiments, the dimensions of any two slits 223 can be different. For example, some of the slits 223 has a longer length, and some of the slits 223 has a shorter length.

Referring to FIG. 6, in some embodiments, the center line 225 in the depth direction of the slit 223 is essentially straight, and the center line 225 extends in a direction substantially consistent with the thickness direction of the heating element 22. Thus, the transportation path of the aerosol precursor is shorter, and it is easier to reach the surface of the heating film 222 through the slit 223 to be atomized.

In other embodiments, the extension direction of the center line 225 may be inclined with the thickness direction of the heating element 22.

Referring to FIG. 7 and FIG. 8, in some embodiments, the number of the slits 223 is multiple, and the multiple slits 223 are linearly arranged along the width direction of the slits 223. Thus, the multiple slits 223 are arranged regularly, making the aerosol precursor flow to the surface of the heating film 222 more uniform, which is conducive to improve the uniformity of the atomization of the heating element 22. The number of slits 223 can be determined by the width of each of the slits 223, the distance between two neighbor of the slits 223, and the overall size of the heating element 22. This application does not limit the specific number of the slits 223. In other embodiments, the multiple slits 223 can also be arranged in an irregular shape.

Referring to FIG. 7 to FIG. 9, in some embodiments, any two adjacent slits 223 are equally spaced apart from each other. Thus, the amount of the aerosol precursor at each location of the heating film 222 is basically the same, which is conducive to improve the uniformity of the atomization of the heating element 22. In other embodiments, the distances between any two adjacent slits 223 can be different.

In some embodiments, the distance between the adjacent slits 223 in the middle region of the heating element 22 is less than that of the adjacent slits 223 in other regions of the heating element 22. Thus, the atomization capacity of different regions of the heating element 22 can be matched with different spacing slits 223, so that the atomization of the heating element 22 is more uniform.

Referring to FIG. 8, in some embodiments, the distance between two adjacent slits 223 is ranged from 10μm to 100μm. For example, the distance between the two adjacent slits 223 is ranged from 10μm-100μm, 10μm-90μm, 20μm-80μm, 30μm-75μm, 50μm-60μm, and so on. For another example, the distance D between the two adjacent slits 223 can be 10μm, 15μm, 50μm, 80μm, or 100μm, etc.

When the distance D is less than 10μm, the adjacent slits 223 are easily connected to each other, thereby making the heating element 22 be manufactured difficultly. When the distance D is greater than 100μm, the distance between the two adjacent slits 223 is too large, and the aerosol precursor is difficult to be transported to various locations of the heating film 222, thereby reducing the atomization uniformity of the heating element 22. Thus, when the distance D is in the range of 10μm-100μm, the heating element 22 it is not only easy to be manufactured, but also the atomization uniformity of the heating element 22 can be improved.

The distance D between the two adjacent slits 223 is the distance between the width centers of the two adjacent slits 223, or the distance between the corresponding edges of the two adjacent slits 223.

Referring to FIG. 7 and FIG. 9, in some embodiments, the ends of the multiple slits 223 are flushed with each other along the width direction of the slits 223. Thus, the multiple slits 223 arrange regularly, thereby making the aerosol precursor flow to the surface of the heating film 222 more uniform, which is conducive to improve the uniformity of the atomization of the heating element 22, and reduces the possibility of dry burning of the heating element 22. In other embodiments, the ends of the multiple slits 223 can not be flushed with each other along the width direction of the slits 223.

Referring to FIG. 10, in some embodiments, the slits 223 are arranged in multiple columns along a first direction x of the heating element 22. Each column of the slits 223 includes a number of the slits 223 arranged at intervals along a second direction y of the heating element 22. The first direction x is perpendicular to the second direction y.

Thus, the slits 223 are arranged in a multi-row and multi-column manner, which can avoid the length of a single slit 223 being too long and difficult to process, thereby improving the consistency of each of the slits 223. The flowing capacity of the aerosol precursor in the heating element 22 is basically the same at each location. Furthermore, the resistance of the heating film 222 can be adjusted to optimize the current path. The heating film 222 is more uniform, and the atomization uniformity of the heating element 22 can be improved. In the example shown in FIG. 10, the slits 223 can be arranged in 12 columns, and the number of rows of the slits 223 is more than the number of columns of the slits 223.

Referring to FIG. 10 and FIG. 11, in some embodiments, in the two adjacent columns of the slits 223, one column of the slits 223 is staggered with the other column of the slits 223 along the first direction x. Thus, the probability of penetration of the ends of each of the slits 223 can be reduced, and the production yield of the heating element 22 can be improved. In addition, the atomization matrix transported to the surface of the heating film 222 can be more evenly distributed, which is conducive to improve the uniformity of the atomization of the heating element 22.

Referring to FIG. 10 and FIG. 11, in some embodiments, the ends of the slits 223 are semi-circular. In the two adjacent columns of the slits 223, the centers of the ends of one column of the slits 223 and the center of the ends of the other column of the slits 223 form an equilateral triangle. Thus, the distances between the adjacent slits 223 are substantially equal, and the aerosol precursor is evenly distributed on the surface of the heating film 222, thereby improving the uniformity of the atomization of the heating element 22 and reducing the probability of dry burning at a certain location of the heating film 222.

Referring to FIG. 12 and FIG. 13, in some embodiments, the heating element 22 includes a middle portion 226 and an edge portion 227 connected to the middle portion 226. The middle portion 226 defines the slit 223. The edge portion 227 defines a through-hole 228. The perimeter of the cross section of the through-hole 228 is less than that of the cross section of the slit 223. Thus, more aerosol precursor can pass through the middle portion 226 and be atomized, thereby improving the atomization uniformity of the heating element 22 and reducing the probability of dry burning of the heating element 22.

In particular, the number of the slits 223 located in the middle portion 226 can be multiple, and the specific characteristics of the slits 223 are referred to the specific descriptions of each of the said embodiments above, and will not be repeated here. The through hole 228 can be circular. The number of the through-hole 228 can be multiple, and the multiple through-holes 228 are distributed regularly or irregularly. The size of the through hole 228 can be designed according to the requirements, as long as the through hole 228 can be successfully discharged in the case of negative pressure formed on a side of the heating film 222, and can be locked in the case of normal air pressure formed on the side of the heating film 222.

In some embodiments, the thickness of the heating element 22 is ranged from 0.4mm to 1mm. When the thickness of the heating element 22 is less than 0.4mm, the heating element 22 is not strong enough and the slit 223 is not deep enough, resulting in insufficient liquid locking capacity of the heating element 22 and other adverse phenomena such as liquid leakage. When the thickness of the heating element 22 is greater than 1mm, the slit 223 may be too deep, which makes it difficult for the aerosol precursor to smoothly pass through the heating element 22 and be atomized. Furthermore, the heating element 22 is too thick, the manufacturing and processing of the slit 223 is too difficult. Therefore, the thickness of the heating element 22 is ranged from 0.4mm to 1mm, the heating element 22 has good liquid conduction and liquid locking performance, and can be manufactured easily.

Referring again to FIG. 3 and FIG. 4, in some embodiments, the atomization device 100 can also include a first sealing element 30, a base 40, a second sealing element 50, and an electrode pole 60. A gap between the core holder 21 and the liquid storage chamber 11 is sealed by the first sealing element 30. The base 40 is inserted into the housing 10. A gap between the base 40 and the liquid storage chamber 11 is sealed by the second sealing element 50. The electrode pole 60 is mounted on the base 40 and is in contact with the heating film 222 of the heating element 22. The electrode pole 60 can transfer the electrical energy of the host 200 to the heating element 22. The heating element 22 can generate heat.

In the description of the embodiments of the present disclosure, terms such as “first” and “second” are used herein for purposes of description and are not intended to indicate or imply relative importance or significance or imply number of technical features indicated. Therefore, a “first” or “second” feature may explicitly or implicitly include one or more features. Furthermore, in the description, unless indicated otherwise, “a number of” refers to two or more.

Reference throughout this specification to “an embodiment” , “some embodiments” , “illustrative embodiment” , “an example” , “a specific example” , or “some examples” means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the disclosure. Thus, the appearances of the phrases such as “in some embodiments” , “in one embodiment” , “in an embodiment” , “an example” , “a specific example” , or “some examples” in various places throughout this specification are not necessarily referring to the same embodiment or example of the disclosure. Furthermore, the specific features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples.

Although explanatory embodiments have been shown and described, it would be appreciated by those skilled in the art that changes, alternatives, and modifications can be made in the embodiments without departing from spirit and principles of the disclosure. Such changes, alternatives, and modifications all fall into the scope of the claims and their equivalents.

Claims

A heating element, comprising:

a substrate; and

a heating film, the heating film disposed on the substrate;

the heating element defining slits passing through the substrate and the heating film, along the thickness direction of the heating film.
The heating element of claim 1, wherein the substrate comprising a glass substrate.
The heating element of claim 1, wherein the ratio between the length and the width of each of the slits being greater than 2.
The heating element of claim 1, wherein the width of the slit being ranged from 5μm to 200μm.
The heating element of claim 1, wherein the length of the slit being ranged from 10μm to 4000μm.
The heating element of claim 1, wherein the slit being linear-shaped or curve-shaped.
The heating element of claim 1, wherein the number of the slits being multiple, and each of the slits having essentially the same shape and/or the same size.
The heating element of claim 1, wherein the center line in the depth direction of the slit being essentially straight, and the center line extending in a direction substantially consistent with the thickness direction of the heating element.
The heating element of claim 1, wherein the number of the slits being multiple, and the multiple slits being linearly arranged along the width direction of the slits.
The heating element of claim 9, wherein any two adjacent slits being equally spaced apart from each other; or, the distance between the adjacent slits in the middle region of the heating element being less than that of the adjacent slits in other regions of the heating element.
The heating element of claim 9, wherein the distance between two adjacent slits being ranged from 10μm to 100μm.
The heating element of claim 9, wherein the ends of the multiple slits being flushed with each other along the width direction of the slits.
The heating element of claim 1, wherein the slits being arranged in multiple columns along a first direction of the heating element, each column of the slits comprising a number of the slits arranged at intervals along a second direction of the heating element, the first direction being perpendicular to the second direction.
The heating element of claim 13, wherein in the two adjacent columns of the slits, one column of the slits being staggered with the other column of the slits along the first direction.
The heating element of claim 14, wherein the ends of the slits being semi-circular, in the two adjacent columns of the slits, the centers of the ends of one column of the slits and the center of the ends of the other column of the slits forming an equilateral triangle.
The heating element of claim 1, wherein the heating element comprising a middle portion and an edge portion connected to the middle portion, the middle portion defining the slit, the perimeter of the cross section of the through-hole being less than that of the cross section of the slit.
An atomization device, comprising:

a housing; and

the heating element of claim 1 to claim 16, the heating element being arranged in the housing.
An atomization equipment, comprising:

a host; and

the atomization device of claim 17, the atomization device being connected to the host.