Electronic heating atomizing core using metal housing for packaging, and electronic heating atomization device

Abstract

An electronic heating atomizing core (1) using a metal housing (11) for packaging, and an electronic heating atomization device. The electronic heating atomizing core (1) comprises the metal housing (11), an insulating layer (14), a soft liquid conduction member (12) configured to conduct a liquid, and a heating sheet (13) configured to be powered on to heat an atomized liquid, wherein the soft liquid conduction member (12), the heating sheet (13) and the insulating layer (14) are stacked in sequence; one side of the soft liquid conduction member (12) is in contact with an inner wall of an accommodating cavity; and the insulating layer (14) separates the heating sheet (13) from the metal housing (11). In the electronic heating atomizing core (1) using the metal housing (11) for packaging, and the electronic heating atomization device using the atomizing core (1), by means of performing packaging using the metal housing (11), the soft liquid conduction member (12) and the heating sheet (13) are packaged inside the metal housing (11); by means of the metal housing (11), better strength is provided, and the attachment between the soft liquid conduction member (12) and the heating sheet (13) is constrained, thereby ensuring an atomization effect; in addition, a metal material has better structural strength, and therefore the metal housing (11) that is made thinner can have sufficient structural strength, thereby facilitating the thinning of the electronic heating atomizing core (1).

Description

Electronic heating atomizing core and electronic heating atomizing device encapsulated in metal shell Technical Field

[0001] The present invention relates to the field of electronic heating atomization, and in particular to an electronic heating atomization core encapsulated in a metal shell and an electronic heating atomization device. Background Art

[0002] An electronic heating atomizer uses electricity to heat a liquid and atomize it. Currently, it's widely used in the e-cigarette sector. E-cigarettes, with their cigarette-like experience, have become popular as a new tobacco product in recent years. The atomizer core is a key component in electronic heating atomizers, consisting of a liquid guide for conducting the liquid and a heating element for heating the atomized liquid. Atomizer cores are categorized by the material of the liquid guide element into two types: those using liquid-conducting cotton and those using porous ceramic. Porous ceramic atomizer cores offer superior structural strength and ease of assembly. Liquid-conducting cotton atomizer cores are made from natural, healthier materials and offer superior flavor and smoother liquid flow. However, because the liquid-conducting cotton is a soft material and the heating element is typically thinner and softer, poor adhesion between the heating element and the liquid-conducting cotton can occur. Furthermore, the liquid-conducting cotton can easily deform during assembly. Therefore, effective design solutions are needed to address these issues with liquid-conducting cotton atomizer components. Technical issues

[0003] The technical problem to be solved by the present invention is to provide an electronic heating atomization core and an electronic heating atomization device encapsulated in a metal shell in response to the above-mentioned defects in the related art. Technical Solutions

[0004] The technical solution adopted by the present invention to solve its technical problems includes: providing an electronic heating atomization core encapsulated in a metal shell, comprising a metal shell, an insulating layer, a soft liquid-conducting part for conducting liquid, and a heating plate for electrically heating the atomized liquid. A accommodating cavity is provided in the metal shell, and the soft liquid-conducting part, the heating plate and the insulating layer are arranged in the accommodating cavity. The soft liquid-conducting part, the heating plate and the insulating layer are stacked in sequence, one side of the soft liquid-conducting part contacts the inner wall of the accommodating cavity, and the other side faces the heating plate. The insulating layer contacts the inner wall of the accommodating cavity to separate the heating plate and the metal shell. The metal shell is provided with a liquid inlet hole corresponding to the soft liquid-conducting part that passes through the accommodating cavity. The metal shell constrains the soft liquid-conducting part to fit with the heating plate, and the heating plate heats and atomizes the liquid in the soft liquid-conducting part.

[0005] Preferably, the metal shell includes a first part and a second part combined with the first part, the accommodating cavity is at least partially arranged in the first part and forms an opening outward, the soft liquid-conducting part, the heating plate and the insulating layer are stacked and installed in the accommodating cavity in sequence along the direction of the opening, and the second part covers the opening.

[0006] Preferably, the first portion includes a top wall and a first side wall provided around the top wall, wherein the top wall and the first side wall define at least a portion of the accommodating cavity;

[0007] The second part is in the form of a sheet, and the first side wall of the first part is connected to the second part; or the second part includes a bottom wall and a second side wall arranged around the bottom wall, the bottom wall and the second side wall define at least part of the accommodating cavity, and the first side wall is connected to the second side wall.

[0008] Preferably, the first part and the second part are positioned relative to each other through a positioning structure, and the positioning structure includes a positioning notch and a positioning protrusion cooperating with the positioning notch, one of the positioning notch and the positioning protrusion is provided on the first part, and the other is provided on the second part.

[0009] Preferably, the thickness of the metal shell is 0.05-0.5 mm.

[0010] Preferably, the thickness of the metal shell is 0.15-0.3 mm.

[0011] Preferably, an oxidation-resistant and corrosion-resistant film is formed on the surface of the metal shell.

[0012] Preferably, the insulating layer and the metal shell are separate independent parts, or the insulating layer is attached to the metal shell structure.

[0013] Preferably, the insulating layer is a polymer plastic material, silicone oil paper, mica sheet or ceramic sheet part that is separate from the metal shell.

[0014] Preferably, the insulating layer is an insulating film or an insulating coating formed on the metal shell.

[0015] Preferably, the thickness of the insulating layer is less than or equal to 0.3 mm.

[0016] Preferably, a film having oxidation resistance and corrosion resistance is formed on the surface of the metal shell.

[0017] Preferably, the liquid inlet holes are a plurality of elongated holes or a plurality of circular holes.

[0018] Preferably, the heating plate includes a heating portion that generates heat when power is supplied and an electrode portion that is electrically connected to the heating portion and is used to be electrically connected to an external power supply. The metal shell is provided with a first atomization port corresponding to the heating portion that passes through the accommodating cavity, and the insulating layer is provided with a second atomization port corresponding to the heating portion and the first atomization port, so that the heating plate heats the liquid from the liquid guide member to form an aerosol, which flows out from the first atomization port and the second atomization port.

[0019] Preferably, the heating plate includes a heating portion that generates heat when powered on and an electrode portion that is electrically connected to the heating portion and used to be electrically connected to an external power supply, and the metal shell is provided with a gap for allowing the electrode portion to extend out of the metal shell.

[0020] The technical solution adopted by the present invention to solve its technical problems includes: providing an electronic heating atomization device, including a shell and the above-mentioned electronic heating atomization core arranged in the shell, the shell is provided with a liquid storage tank for storing liquid and an air duct leading to the outside, the liquid storage tank is connected to the liquid inlet, and the air duct is open to the electronic heating atomization core, so that the aerosol generated by the electronic heating atomization core can flow out from the air duct. Beneficial effects

[0021] Implementation of the technical solution of the present invention has at least the following beneficial effects: the electronic heating atomization core encapsulated in the metal shell and the electronic heating atomization device using the atomization core are encapsulated in the metal shell, and the soft liquid-conducting part and the heating plate are encapsulated inside the metal shell. The metal shell provides better strength and constrains the soft liquid-conducting part to fit the heating plate to ensure the atomization effect, while the insulating sheet separates them; at the same time, the metal material has better structural strength, so the metal shell can be made thinner and still have sufficient structural strength, which is conducive to the lightweight and thinning of the electronic heating atomization core; the metal shell makes the electronic heating atomization core modular, which is conducive to the subsequent assembly when it is applied to the electronic heating atomizer. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] FIG1 is a perspective view of an electronically heated atomizing core according to a first embodiment of the present invention.

[0024] FIG2 is a partial enlarged view of the P portion in FIG1 .

[0025] FIG3 is an exploded view of the electronically heated atomizing core of FIG1 .

[0026] FIG4 is an exploded view of the metal shell of the electronically heated atomizing core of FIG1 .

[0027] FIG5 is a top view of the electronically heated atomizing core of FIG1 .

[0028] FIG. 6 is a cross-sectional view taken along line AA of FIG. 5 .

[0029] FIG. 7 is a cross-sectional view taken along line BB in FIG. 5 .

[0030] FIG8 is a perspective view of an electronically heated atomizing core according to a second embodiment of the present invention.

[0031] FIG. 9 is an exploded view of the electronically heated atomizing core of FIG. 8 .

[0032] FIG. 10 is a perspective view of another embodiment of the first portion of the metal housing of FIG. 8 .

[0033] FIG11 is a perspective view of an electronic heating atomizing core according to a third embodiment of the present invention.

[0034] FIG. 12 is an exploded view of the electronically heated atomizing core of FIG. 11 .

[0035] FIG13 is a perspective view of an electronic heating atomization device according to an embodiment of the present invention.

[0036] FIG14 is a cross-sectional view taken at position CC of FIG13 (arrows indicate the direction of liquid flow).

[0037] FIG15 is a cross-sectional view taken at position CC in FIG13 (arrows indicate gas flow directions).

[0038] FIG. 16 is an exploded view of the electronically heated atomizing core of FIG. 13 .

[0039] The numbers in the figure indicate: electronic heating atomization core 1, metal shell 11, accommodating chamber 110, first part 111, top wall 1111, first side wall 1112, second part 112, bottom wall 1121, second side wall 1122, positioning structure 113, positioning notch 1131, positioning protrusion 1132, liquid inlet hole 114, first atomization port 115, air-avoiding notch 116, soft liquid-conducting part 12, heating sheet 13, heating part 131, electrode part 132, insulating layer 14, second atomization port 141, shell 2, air duct 21, liquid storage tank 22. Modes for Carrying Out the Invention

[0040] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific embodiments of the present invention are now described in detail with reference to the accompanying drawings. It should be understood that if the "front", "back", "up", "down", "left", "right", "longitudinal", "horizontal", "vertical", "horizontal", "top", "bottom", "inside", "outside", "head", "tail" and other indications of orientation or positional relationship appear in the text, they are based on the orientation or positional relationship shown in the drawings, constructed and operated in a specific orientation, and are only for the convenience of describing the present technical solution, and do not indicate that the device or element referred to must have a specific orientation, and therefore should not be understood as limiting the present invention. It should also be noted that unless otherwise expressly specified and limited, if the terms "installed", "connected", "connected", "fixed", "set" and the like appear in the text, they should be understood in a broad sense, for example, they can be fixedly connected, detachably connected, or integrated; they can be directly connected, or indirectly connected through an intermediate medium, and can be internal communication between two elements or an interactive relationship between two elements. When an element is referred to as being "on" or "under" another element, the element can be "directly" or "indirectly" located on the other element, or one or more intervening elements may be present. If the terms "first," "second," "third," etc. appear in this document, they are merely for the purpose of describing the technical solution and should not be construed as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, features defined as "first," "second," "third," etc. may explicitly or implicitly include one or more of such features. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0041] In the following description, specific details such as particular system structures and techniques are provided for purposes of illustration, not limitation, to facilitate a thorough understanding of the embodiments of the present invention. However, it will be apparent to those skilled in the art that the present invention may be practiced in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.

[0042] Referring to Figures 1-7, an electronic heating atomization core 1 encapsulated in a metal shell in one embodiment of the present invention includes a metal shell 11, an insulating layer 14, a soft liquid-conducting member 12 for conducting liquid, and a heating plate 13 for electrically heating the atomized liquid. A accommodating cavity 110 is provided in the metal shell 11, and the soft liquid-conducting member 12, the heating plate 13 and the insulating layer 14 are arranged in the accommodating cavity 110. The soft liquid-conducting member 12, the heating plate 13 and the insulating layer 14 are stacked in sequence. One side of the soft liquid-conducting member 12 is in contact with the inner wall of the accommodating cavity 110, and the other side faces the heating plate 13. The insulating layer 14 is in contact with the inner wall of the accommodating cavity 110, isolating the heating plate 13 from the metal shell 11. The heating plate 13 is to be powered to generate heat, so the insulating layer 14 prevents the heating plate 13 from short-circuiting with the metal shell 11. The metal shell 11 is provided with a liquid inlet hole 114 corresponding to the soft liquid-conducting part 12 that passes through the accommodating cavity 110, so that the external liquid of the electronic heating atomization core 1 can contact the soft liquid-conducting part 12. For example, when the electronic heating atomization core 1 is installed in the electronic heating atomization device, the liquid in the device can contact the soft liquid-conducting part 12 through the liquid inlet hole 114. The soft liquid-conducting part 12 conducts the liquid to the heating plate 13. The metal shell 11 constrains the soft liquid-conducting part 12 to fit the heating plate 13, and the heating plate 13 heats and atomizes the liquid in the soft liquid-conducting part 12.

[0043] The electronic heating atomizer core 1 encapsulated in the metal shell 11 is encapsulated by the metal shell 11, and the soft liquid guide part 12 and the heating plate 13 are encapsulated inside the metal shell 11. The metal shell 11 provides better strength and constrains the soft liquid guide part 12 to fit with the heating plate 13 to ensure the atomization effect, while the insulating sheet separates them; at the same time, the metal material has better structural strength, so the metal shell 11 can be made thinner and still have sufficient structural strength, which is conducive to the lightweight and thinning of the electronic heating atomizer core 1; the metal shell 11 makes the electronic heating atomizer core 1 modular, which is conducive to the subsequent assembly when it is applied to the electronic heating atomizer.

[0044] 1-7 , preferably, the metal shell 11 includes a first part 111 and a second part 112 combined with the first part 111, the accommodating cavity 110 is at least partially arranged in the first part 111 and forms an opening outward, the soft liquid-conducting part 12, the heating plate 13 and the insulating layer 14 are sequentially stacked and installed in the accommodating cavity 110 along the direction of the opening, and the second part 112 covers the opening.

[0045] 1-7 , preferably, the first portion 111 includes a top wall 1111 and a first side wall 1112 disposed around the top wall 1111 , and the top wall 1111 and the first side wall 1112 define at least a portion of the accommodating cavity 110 ;

[0046] The second portion 112 is in a sheet shape, and the first side wall 1112 of the first portion 111 is connected to the second portion 112 to form a combination of the first portion 111 and the second portion 112; or the second portion 112 includes a bottom wall 1121 and a second side wall 1122 disposed around the bottom wall 1121, the bottom wall 1121 and the second side wall 1122 define at least a portion of the accommodating cavity 110, and the first side wall 1112 is connected to the second side wall 1122 to form a combination of the first portion 111 and the second portion 112;

[0047] Specifically, the first part 111 and the second part 112 can be made of metal sheets, wherein the first part 111 can be formed into a shell-like structure with a accommodating cavity 110 by stamping and drawing, and the second part 112 preferably adopts a sheet structure, which can simplify the manufacturing process and reduce costs, so that the first part 111 and the second part 112 can have a hard appearance while being thin, and have regular shapes and precise sizes.

[0048] 1-7 , in some embodiments, the first portion 111 of the metal housing 11 includes a top wall 1111 and a first side wall 1112 disposed around the top wall 1111 . The top wall 1111 and the first side wall 1112 define a receiving cavity 110 . The second portion 112 is plate-shaped and includes a bottom wall 1121 . The insulating layer 14 is disposed between the second portion 112 and the heating element.

[0049] 8-9 , in other embodiments, the first portion 111 is plate-shaped and includes a top wall 1111 , the second portion 112 includes a bottom wall 1121 and a second side wall 1122 disposed around the bottom wall 1121 , and the insulating layer 14 is disposed between the second portion 112 and the heating element.

[0050] Referring to Figures 1-7, preferably, the first portion 111 and the second portion 112 are positioned relative to each other via a positioning structure 113. The positioning structure 113 includes a positioning notch 1131 and a positioning protrusion 1132 that cooperates with the positioning notch 1131. One of the positioning notch 1131 and the positioning protrusion 1132 is provided on the first portion 111, and the other is provided on the second portion 112. The positioning structure 113 is used to position the first portion 111 and the second portion 112 during assembly. After positioning, they can be fixed by welding. In addition, after assembly and welding, the internal accommodation space size can be kept constant, effectively ensuring a constant volume of the soft liquid-conducting member 12. This further ensures that the porosity of the soft liquid-conducting member 12 is relatively stable, and the liquid-conducting effect is stable. In the embodiment of Figures 1-7, a positioning notch 1131 is provided on the first sidewall 1112 of the first portion 111. The positioning notch 1131 is provided at the opening edge of the accommodating chamber 110. The second portion 112 is in the form of a sheet and is provided with a positioning protrusion 1132. Specifically, the assembly method of the electronic heating atomization core 1 is that the soft liquid guide part 12 is placed in the accommodating space of the first part 111 of the metal shell 11, and then the heating plate 13 and the insulating layer 14 are stacked in sequence, and then the second part 112 of the metal shell 11 is used to cover the opening of the accommodating cavity 110 of the first part 111. The first part 111 and the second part 112 are positioned with each other through the positioning structure 113, and then the first part 111 and the second part 112 are welded or bonded into one by some means. Preferably, laser welding is used to connect the first part 111 and the second part 112 to form an inseparable whole structure.

[0051] In order to minimize the size of the electronic heating atomizer core 1 while ensuring that the metal shell 11 has sufficient strength, the thickness of the metal shell 11 is 0.05-0.5 mm.

[0052] Preferably, the thickness of the metal shell 11 is 0.15-0.3 mm. Considering the size of a common electronic heating atomizer core 1 , the thickness of the metal shell 11 provides good strength.

[0053] Preferably, an anti-oxidation and corrosion-resistant film is formed on the surface of the metal shell 11. For example, aluminum can be used to form an aluminum oxide film, or the stainless steel surface can be passivated to form an anti-oxidation film. The purpose is to improve the corrosion resistance. Due to contact with the atomized liquid, some atomized liquids have certain corrosiveness.

[0054] The insulating layer 14 and the second portion 112 of the metal shell 11 are separate independent parts, or the insulating layer 14 is a structure attached to the first portion 111 or the second portion 112 of the metal shell 11. The insulating layer 14 is required to have good dielectric strength and not degrade or release harmful substances at high temperatures.

[0055] Regarding the former embodiment of the insulating layer 14 , the insulating layer 14 is a polymer plastic material, silicone oil paper, mica sheet or ceramic sheet component that is independent from the metal housing 11 .

[0056] As for the latter form of the insulating layer 14 , the insulating layer 14 may be an insulating film or insulating coating formed on the metal housing 11 by lamination technology, in order to avoid a short circuit between the two electrode portions 132 of the heating plate 13 .

[0057] In order to ensure a relatively thin structure, the thickness of the insulating layer 14 is less than or equal to 0.3 mm.

[0058] The surface of the metal shell 11 can be formed into an anti-oxidation and corrosion-resistant film by spraying or electroplating. For example, aluminum can be used to form an aluminum oxide film, or the surface of stainless steel can be passivated to form an anti-oxidation film (the purpose is to improve the corrosion resistance. Due to contact with atomized liquids such as cigarette oil, some atomized liquids have certain corrosiveness), or an anti-oxidation film can be formed by electroplating.

[0059] The liquid inlet holes 114 are a plurality of parallel long strip holes (see FIG. 1-9 ) or a plurality of arrayed circular holes (see FIG. 10 ).

[0060] The heating plate 13 includes a heating portion 131 that generates heat when power is supplied, and an electrode portion 132 that is electrically connected to the heating portion 131 and is used to be electrically connected to an external power source. The metal shell 11 is provided with a first atomization port 115 corresponding to the heating portion 131 and passing through the accommodating cavity 110. The insulating layer 14 is provided with a second atomization port 141 corresponding to the heating portion 131 and the first atomization port 115, so that the heating plate 13 can heat the liquid from the liquid guide member to form an aerosol, which flows out from the first atomization port 115 and the second atomization port 141.

[0061] The heating plate 13 includes a heating portion 131 that generates heat when power is supplied, and an electrode portion 132 that is electrically connected to the heating portion 131 and is used to be electrically connected to an external power source. The metal shell 11 is provided with an air-avoiding gap 116 for allowing the electrode portion 132 to extend out of the metal shell 11. There are two electrode portions 132, and the number of the air-avoiding gaps 116 is also two. In some embodiments, see Figures 11-12, the two air-avoiding gaps 116 are provided on the same side of the metal shell 11; in other embodiments, see Figures 1-9, the two air-avoiding gaps 116 are provided on opposite sides of the metal shell 11.

[0062] Referring to Figures 13-16, an electronic heating atomization device according to an embodiment of the present invention includes a shell 2 and the above-mentioned electronic heating atomization core 1 arranged in the shell 2. The shell 2 is provided with a liquid storage tank 22 for storing liquid and an air duct 21 leading to the outside. The liquid storage tank 22 is connected to the liquid inlet hole 114 to supply liquid to the soft liquid guide part 12. The air duct 21 is open to the electronic heating atomization core 1 so that the aerosol generated by the electronic heating atomization core 1 can flow out from the air duct 21.

[0063] In summary, the electronic heating atomizer core 1 encapsulated by the metal shell 11 and the electronic heating atomizer device using the atomizer core are encapsulated by the metal shell 11, and the soft liquid guide part 12 and the heating plate 13 are encapsulated inside the metal shell 11. The metal shell 11 provides better strength and constrains the soft liquid guide part 12 to fit with the heating plate 13 to ensure the atomization effect, while the insulating sheet separates them; at the same time, the metal material has better structural strength, so the metal shell 11 can be made thinner and have sufficient structural strength, which is conducive to the lightweight and thinning of the electronic heating atomizer core 1; the metal shell 11 makes the electronic heating atomizer core 1 modular, which is conducive to the subsequent assembly when it is applied to the electronic heating atomizer.

[0064] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications, combinations, and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of the claims.

Claims

1. An electronic heating atomizer core (1) encapsulated in a metal shell, characterized in that: The invention comprises a metal shell (11), an insulating layer (14), a soft liquid-conducting member (12) for conducting liquid, and a heating sheet (13) for electrically heating the atomized liquid, wherein a receiving cavity (110) is provided in the metal shell (11), the soft liquid-conducting member (12), the heating sheet (13) and the insulating layer (14) are arranged in the receiving cavity (110), the soft liquid-conducting member (12), the heating sheet (13) and the insulating layer (14) are stacked in sequence, and one side of the soft liquid-conducting member (12) is in contact with the receiving cavity (110). ) is in contact with the inner wall of the accommodating cavity (110), and the other side faces the heating sheet (13); the insulating layer (14) is in contact with the inner wall of the accommodating cavity (110), separating the heating sheet (13) from the metal shell (11); the metal shell (11) is provided with a liquid inlet hole (114) corresponding to the soft liquid-conducting component (12) and penetrating to the accommodating cavity (110); the metal shell (11) constrains the soft liquid-conducting component (12) and the heating sheet (13) to fit together, and the heating sheet (13) heats and atomizes the liquid in the soft liquid-conducting component (12).

2. The electronically heated atomizing core (1) according to claim 1, characterized in that: The metal shell (11) comprises a first part (111) and a second part (112) combined with the first part (111); the accommodating cavity (110) is at least partially arranged in the first part (111) and forms an opening outward; the soft liquid-conducting part (12), the heating sheet (13) and the insulating layer (14) are sequentially stacked and installed in the accommodating cavity (110) along the direction of the opening; and the second part (112) covers the opening.

3. The electronically heated atomizing core (1) according to claim 2, characterized in that: The first part (111) comprises a top wall (1111) and a first side wall (1112) arranged around the top wall (1111), and the top wall (1111) and the first side wall (1112) define at least a portion of the accommodating cavity (110); The second part (112) is in the form of a sheet, and the first side wall (1112) of the first part (111) is connected to the second part (112); or the second part (112) includes a bottom wall (1121) and a second side wall (1122) arranged around the bottom wall (1121), the bottom wall (1121) and the second side wall (1122) define at least a portion of the accommodating cavity (110), and the first side wall (1112) is connected to the second side wall (1122).

4. The electronically heated atomizer core (1) according to claim 2, characterized in that: The first part (111) and the second part (112) are positioned relative to each other via a positioning structure (113); the positioning structure (113) comprises a positioning notch (1131) and a positioning protrusion (1132) cooperating with the positioning notch (1131); one of the positioning notch (1131) and the positioning protrusion (1132) is provided on the first part (111), and the other is provided on the second part (112).

5. The electronically heated atomizer core (1) according to any one of claims 1 to 4, characterized in that: The thickness of the metal shell (11) is 0.05-0.5 mm.

6. The electronically heated atomizer core (1) according to claim 5, characterized in that: The thickness of the metal shell (11) is 0.15-0.3 mm.

7. The electronically heated atomizing core (1) according to claim 1, characterized in that: An oxidation-resistant and corrosion-resistant film is formed on the surface of the metal shell (11).

8. The electronically heated atomizer core (1) according to claim 2, characterized in that: The insulating layer (14) and the metal shell (11) are separate and independent parts, or the insulating layer (14) is attached to the metal shell (11) structure.

9. The electronically heated atomizing core (1) according to claim 8, characterized in that: The insulating layer (14) is a polymer plastic material, silicone oil paper, mica sheet or ceramic sheet part that is separate and independent from the metal shell (11).

10. The electronically heated atomizer core (1) according to claim 8, characterized in that: The insulating layer (14) is an insulating film or an insulating coating formed on the metal shell (11).

11. The electronically heated atomizing core (1) according to any one of claims 1 to 4 and 6 to 10, characterized in that: The thickness of the insulating layer (14) is less than or equal to 0.3 mm.

12. The electronically heated atomizing core (1) according to any one of claims 1 to 4 and 6 to 10, characterized in that: A film having oxidation resistance and corrosion resistance is formed on the surface of the metal shell (11).

13. The electronically heated atomizing core (1) according to any one of claims 1 to 4 and 6 to 10, characterized in that: The liquid inlet holes (114) are a plurality of elongated holes or a plurality of circular holes.

14. The electronically heated atomizing core (1) according to any one of claims 1 to 4 and 6 to 10, characterized in that: The heating sheet (13) comprises a heating portion (131) that generates heat when electricity is supplied, and an electrode portion (132) that is electrically connected to the heating portion (131) and is used to be electrically connected to an external power source. The metal shell (11) is provided with a first atomization port (115) that passes through the accommodating cavity (110) and corresponds to the heating portion (131). The insulating layer (14) is provided with a second atomization port (141) that corresponds to the heating portion (131) and the first atomization port (115), so that the heating sheet (13) heats the liquid from the liquid guide member to form an aerosol, which flows out from the first atomization port (115) and the second atomization port (141).

15. The electronically heated atomizer core (1) according to any one of claims 1 to 4 and 6 to 10, characterized in that: The heating sheet (13) comprises a heating portion (131) that generates heat when powered on, and an electrode portion (132) that is electrically connected to the heating portion (131) and used to be electrically connected to an external power source, and the metal shell (11) is provided with a gap (116) for allowing the electrode portion (132) to extend out of the metal shell (11).

16. An electronic heating atomization device, characterized in that: The invention comprises a shell (2) and an electronic heating atomizer core (1) according to any one of claims 1 to 15 arranged in the shell (2), wherein the shell (2) is provided with a liquid storage tank (22) for storing liquid and an air passage (21) leading to the outside, wherein the liquid storage tank (22) is connected to the liquid inlet hole (114), and the air passage (21) is open to the electronic heating atomizer core (1), so that the aerosol generated by the electronic heating atomizer core (1) can flow out from the air passage (21).

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