Heating body, atomization assembly and electronic atomization device

Abstract

The utility model relates to the technical field of atomization, in particular to a heating element, an atomization assembly and an electronic atomization device.The heating element comprises an external connection part and a heating part, the two external connection ends of the external connection part are arranged at intervals in the first direction so as to be externally connected with the positive electrode and the negative electrode of a power source correspondingly, and the heating part is connected between the two external connection ends; the heating part comprises a plurality of heating sections which are sequentially connected end to end in the first direction, and the areas of the cross sections of the heating sections in the direction perpendicular to the extending direction are equal everywhere, so that the heating part is convenient to process and manufacture; the area of the cross section of the heating section close to the external connection part in the first direction is smaller than the area of the cross section of the heating section far away from the external connection part, so that the area of the cross section of the heating part is reduced in a stepped mode in the direction close to the external connection part from the direction far away from the external connection part, and heat production in the middle of the heating part can be reduced. The probability that the heating part is heated for a long time to generate burnt smell can be reduced, heat of the whole heating body in the first direction can be evenly distributed, and the service life of the heating body can be prolonged.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of atomization, in particular to a heating element, an atomization assembly and an electronic atomization device. BACKGROUND

[0002] The electronic atomization device comprises an atomization assembly and a power supply assembly, the power supply assembly is electrically connected with the atomization assembly, the atomization assembly usually comprises an atomization core, the atomization core comprises a liquid guide and a heating element, the liquid guide has an atomization surface, the liquid guide is used for guiding atomization liquid to the atomization surface, and the heating element is installed on the atomization surface and used for heating the atomization liquid to generate an aerosol.

[0003] The heating element usually comprises two spaced-apart pads and a heating portion connected between the two pads, when the heating element works, the temperature of the part of the heating portion for connecting with the pads is relatively low, the local temperature of the heating portion at the middle position of the arrangement direction of the two pads can be too high, the atomization liquid heated for a long time at the middle position of the heating portion can produce a burnt taste, which affects the taste of the user and also reduces the service life of the heating element. CONTENT OF THE UTILITY MODEL

[0004] The present application provides a heating element, an atomization assembly and an electronic atomization device to solve the technical problem that the local temperature of the heating element is too high to produce a burnt taste, which affects the taste of the user and reduces the service life of the heating element.

[0005] According to a first aspect, a heating element is provided in an embodiment, comprising:

[0006] an external connection portion comprising a first external connection end and a second external connection end spaced apart in a first direction, the first external connection end and the second external connection end are respectively used for externally connecting a positive electrode and a negative electrode of a power supply;

[0007] a heating portion connected between the first external connection end and the second external connection end, the heating portion comprises a plurality of heating segments connected in sequence at the head and tail in the first direction, the cross-sectional area of the heating segment in the direction perpendicular to the extension direction is equal everywhere, and the cross-sectional area of the heating segment close to the external connection portion in the first direction is smaller than that of the heating segment far away from the external connection portion.

[0008] In an optional embodiment, the heating segment has a width dimension perpendicular to the extension direction, and the width dimension difference of two adjacent heating segments with different distances from the external connection portion in the first direction is equal; or,

[0009] the heating segment has a radial dimension perpendicular to the extension direction, and the radial dimension difference of two adjacent heating segments with different distances from the external connection portion in the first direction is equal.

[0010] In an alternative embodiment, the heating section is a straight section, and the extension direction of the heating section is arranged at an acute angle with the first direction.

[0011] In an alternative embodiment, in the first direction, the included angle between any two adjacent heating sections is not zero, and the included angle between any two adjacent heating sections is equal.

[0012] In an alternative embodiment, the heating body further comprises a first connecting portion, the heating portions are multiple, and two adjacent heating portions are arranged at intervals in a second direction, the second direction being perpendicular to the first direction, and the first connecting portion is connected between two adjacent heating portions.

[0013] In an alternative embodiment, the first connecting portion is a straight structure extending in the second direction.

[0014] In an alternative embodiment, the first connecting portion has a first connecting end connected with the heating portion, and the first connecting end is connected between two adjacent heating sections in the first direction.

[0015] In an alternative embodiment, the heating body further comprises a second connecting portion, the second connecting portion being connected to both sides of the heating portion in a second direction, the second direction being perpendicular to the first direction.

[0016] The second connecting portion has a suspended end away from the heating portion in the second direction, and the suspended end is flush with the end of the outer connecting portion in the second direction.

[0017] According to a second aspect, in an embodiment, an atomization assembly is provided, having a liquid storage cavity and an atomization cavity, the liquid storage cavity being used for storing atomization liquid, the atomization assembly comprising an atomization core and the heating body as described in any one of the above embodiments, the atomization core comprising a liquid guide and an atomization surface, the liquid guide having a liquid guide surface, the liquid guide surface being used for contacting the atomization liquid in the liquid storage cavity, the liquid guide being used for guiding the atomization liquid from the liquid guide surface to the atomization surface, the heating body being located in the atomization cavity and being mounted on the atomization surface, the heating body being used for heating the atomization liquid.

[0018] In an alternative embodiment, the liquid guide is a ring structure, the liquid guide surface is located on the outer circumferential surface of the liquid guide, the atomization surface is located on the inner circumferential surface of the liquid guide, the first direction is arranged around the central axis of the ring structure, and the heating body is mounted on the inner circumferential surface; or,

[0019] The atomization surface is a plane, the liquid guide surface is arranged opposite to the atomization surface, the first direction is a straight line direction parallel to the atomization surface, and the heating body is mounted on the atomization surface.

[0020] According to a third aspect, an electronic atomization device is provided in an embodiment, comprising a power supply assembly and the atomization assembly according to any one of the above embodiments, the power supply assembly being electrically connected with the heating body in the atomization assembly.

[0021] According to the heating body, the atomization assembly and the electronic atomization device of the above embodiments, the heating body comprises a connection part and a heating part, the connection part comprises a first connection end and a second connection end arranged at intervals in a first direction, the first connection end and the second connection end are respectively used for connecting a positive electrode and a negative electrode of an external power supply, the heating part is connected between the first connection end and the second connection end, the heating part comprises a plurality of heating sections connected in sequence in the first direction, the cross-sectional area of the heating section in the direction perpendicular to the extension direction is equal everywhere, so as to facilitate the processing and manufacturing of the heating part; the cross-sectional area of the heating section close to the connection part in the first direction is smaller than the cross-sectional area of the heating section away from the connection part, so that the cross-sectional area of the heating part decreases in a stepwise manner from the direction away from the connection part to the direction close to the connection part, which helps to reduce the heat production of the heating part at the middle position in the first direction, reduces the probability of producing burnt taste of the heating part when heating the atomization liquid for a long time, helps to improve the use taste of the user, and the local heat of the heating part at both ends in the first direction is transmitted to the connection part, which helps to uniformly distribute the heat of the entire heating body in the first direction, and helps to prolong the service life of the heating body. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 FIG. 1 is a schematic diagram of the perspective structure of an embodiment of the heating body;

[0023] Figure 2 FIG. 2 is a schematic diagram of the front view of an embodiment of the heating body;

[0024] Figure 3 FIG. 3 is a schematic diagram of the partial structure of an embodiment of the atomization assembly;

[0025] Figure 4 FIG. 4 is a schematic diagram of the cross-sectional structure of the partial atomization assembly of an embodiment.

[0026] In the figure: 10, atomization core; 1, base; 2, first support; 21, first cylinder; 211, first opening; 3, second support; 31, second cylinder; 311, second opening; 4, liquid suction member; 51, liquid guide member; 511, liquid guide surface; 512, atomization surface; 6, heating body; 61, connection part; 611, first connection end; 612, second connection end; 62, heating part; 621, heating section; 63, first connection part; 631, first connection end; 64, second connection part; 641, suspended end.

[0027] Explanation of reference signs in the drawings with brackets: In the reference signs in the drawings with brackets, the feature referred to by the reference sign is both the feature represented by the number in the brackets and the feature represented by the number outside the brackets. DETAILED DESCRIPTION

[0028] The application will be described in further detail below with reference to the drawings. Like elements in different embodiments are denoted by like reference numerals. In the following description, many details are described in order to provide a more thorough understanding of the application. However, it will be apparent to one skilled in the art that some features, which are not described in detail, can be omitted, or can be substituted by other elements, materials, methods, etc. In some cases, some operations related to the application are not shown or described in the specification in order to avoid the core of the application being obscured by too much description, and it is not necessary for one skilled in the art to describe these operations in detail based on the description in the specification and general technical knowledge in the art.

[0029] In addition, the features, operations or characteristics described in the specification can be combined in any appropriate manner to form various embodiments, and the operation steps involved in each embodiment can also be sequentially adjusted or modified in a manner that is obvious to one skilled in the art. Therefore, the specification and drawings are only intended to clearly describe one embodiment, and do not mean that the composition and / or order is necessary.

[0030] The serial numbers of components in this document, such as "first", "second", etc., are only used to distinguish the described objects and do not have any sequential or technical meaning. Unless otherwise specified, "connected" and "coupled" in this application include direct and indirect connections (couplings).

[0031] Embodiments of the present application disclose a heating body 6 applied to an atomization assembly of an electronic atomization device, for heating atomized liquid to generate aerosol; the heating body 6 of the embodiments of the present application mainly reduces the heat generation at the middle position of the heating part 62 by making the cross-sectional area of the heating section 621 decrease in a stepped manner from the position away from the external connection end to the position close to the external connection end in the arrangement direction of the two external connection ends, so as to reduce the probability of producing burnt taste after long-time heating of the heating part 62, and also to uniformly arrange the heat of the heating part 62 in the first direction, so as to prolong the service life of the heating body 6.

[0032] The heating body 6 of the embodiments of the present application, please refer to Figures 1 to 4, including an external connection part 61 and a heating part 62, the external connection part 61 includes a first external connection end 611 and a second external connection end 612 arranged at intervals in the first direction, both of which can be pads, and both of which can be externally connected to a lead wire (not shown in the figure), the first external connection end 611 can be connected to the positive pole of a power supply electrode in a power supply assembly (not shown in the figure) through a lead wire, and the second external connection end 612 can be connected to the negative pole of the power supply electrode in the power supply assembly through a lead wire, so that the heating body 6 can be powered by an external power supply assembly.

[0033] The heating part 62 is connected between the first external connection end 611 and the second external connection end 612, and includes a plurality of heating segments 621 connected in sequence at the head and tail in the first direction; for a single heating segment 621, the cross-sectional dimension of the heating segment 621 in the direction perpendicular to its extension direction is equal everywhere, so as to facilitate the processing of each heating segment 621 and the entire heating part 62.

[0034] For a plurality of heating segments 621, the cross-sectional area of the heating segment 621 close to the external connection part 61 in the first direction is smaller than that of the heating segment 621 far from the external connection part 61, that is, the farther the distance from the first external connection end 611 or the second external connection end 612 in the first direction, the larger the cross-sectional area of the heating segment 621, and according to Ohm's law, the less the heat generated by the heating segment 621 per unit time; in this way, the heat generated by the heating segment 621 located at the middle position between the first external connection end 611 and the second external connection end 612 in the first direction is the smallest, and the heat generated by the heating segment 621 connected to the first external connection end 611 or the second external connection end 612 is the largest, so as to reduce the heat generated by the heating part 62 at the middle position in the first direction, and reduce the probability of producing burnt smell due to long-time heating of the atomized liquid by the heating part 62; and the heat generated by the heating segment 621 connected to the first external connection end 611 or the second external connection end 612 is large, which can reduce the heat at both ends of the heating part 62 in the first direction after the heat is transferred to the first external connection end 611 or the second external connection end 612, which helps to uniformly arrange the heat of the heating part 62 in the first direction, avoids local high temperature, and helps to prolong the service life of the heating body 6.

[0035] In some embodiments, please refer to Figure 1 and Figure 2, the heating body 6 as a whole can be a mesh structure, and the cross-sectional shape of each heating section 621 in the heating portion 62 can be rectangular; the heating body 6 as a whole can be formed by etching or punching a plate structure, the heating section 621 has a width dimension and a thickness dimension in a direction perpendicular to the extension direction of the heating section 621, the thickness dimension of each heating section 621 is the same and equal to the thickness dimension of the plate structure; for the same heating section 621, the width direction is perpendicular to the thickness direction and the length direction, and the width dimension D of the heating section 621 at each position in the extension direction is the same, so as to facilitate the processing of each heating section 621, and the width dimension D of the two adjacent heating sections 621 that are different in distance from the outer connecting portion 61 in the first direction is different, and the width dimension D of the heating section 621 far from the outer connecting portion 61 is greater than the width dimension D of the heating section 621 close to the outer connecting portion 61, so as to satisfy the cross-sectional area of the heating portion 62 decreasing in a stepped manner in the first direction from the direction far from the outer connecting portion 61 to the direction close to the outer connecting portion 61.

[0036] In other embodiments, the width dimension D of each heating section 621 can be the same, and for the same heating section 621, the thickness dimension at each position in the extension direction is equal; the thickness dimension of the two adjacent heating sections 621 that are different in distance from the outer connecting portion 61 in the first direction is different, and the thickness dimension of the heating section 621 far from the outer connecting portion 61 is greater than the thickness dimension of the heating section 621 close to the outer connecting portion 61, so as to satisfy the cross-sectional area of the heating portion 62 decreasing in a stepped manner in the first direction from the direction far from the outer connecting portion 61 to the direction close to the outer connecting portion 61.

[0037] In some embodiments, the cross-sectional shape of each heating section 621 in the heating portion 62 can be circular, and the radial dimension of the cross section of the heating section 621 is the radial dimension of the heating section 621, for the same heating section 621, the radial dimension of the heating section 621 at each position in the extension direction is equal; the radial dimension of the two adjacent heating sections 621 that are different in distance from the outer connecting portion 61 in the first direction is different, and the radial dimension of the heating section 621 far from the outer connecting portion 61 is greater than the radial dimension of the heating section 621 close to the outer connecting portion 61, so as to satisfy the cross-sectional area of the heating portion 62 decreasing in a stepped manner in the first direction from the direction far from the outer connecting portion 61 to the direction close to the outer connecting portion 61.

[0038] In other embodiments, the cross-sectional shape of the heating section 621 in the direction perpendicular to the extension direction of the heating section 621 can be triangular, trapezoidal or other special shape, as long as for the same heating section 621, the cross-sectional dimension or cross-sectional area in the extension direction is equal at each position, and the cross-sectional dimension or cross-sectional area of the plurality of heating sections 621 decreases in a stepped manner in the first direction from the direction far from the outer connecting portion 61 to the direction close to the outer connecting portion 61.

[0039] In some embodiments, the cross-sectional shape of the heating section 621 perpendicular to the extending direction of the heating section 621 is rectangular, and the width dimension difference of the adjacent two heating sections 621 in the first direction and away from the outer connecting section 61 is equal, so that the width dimension of the plurality of heating sections 621 in the first direction changes uniformly, and the width dimension of a certain heating section 621 does not suddenly decrease or increase, so that the local heat production is not too large or too small, which helps to uniformly arrange the heat of the heating section 62 in the first direction, further reduces the probability of burning smell, and prolongs the service life of the heating section 62.

[0040] In some embodiments, the cross-sectional shape of the heating section 621 perpendicular to the extending direction of the heating section 621 is circular, and the radial dimension difference of the adjacent two heating sections 621 in the first direction and away from the outer connecting section 61 is equal, so that the radial dimension of the plurality of heating sections 621 in the first direction changes uniformly, which helps to uniformly arrange the heat of the heating section 62 in the first direction, further reduces the probability of burning smell, and prolongs the service life of the heating body 6.

[0041] In some embodiments, please refer to Figure 1 and Figure 2 The first direction is the direction in which the first outer connecting end 611 and the second outer connecting end 612 are oppositely arranged, each heating section 621 can be a straight line section, or in other embodiments, can be a curved section or a broken line section. In the embodiment in which the heating section 621 is a straight line section, the extending direction of the plurality of heating sections 621 is arranged at an acute angle with the first direction, so that the heat of the heating body 6 in the second direction is uniformly arranged, the second direction is perpendicular to the first direction and perpendicular to the thickness direction of the heating section 621. Of course, in the embodiment in which the heating section 621 is a curved section or a broken line section, the heat of the heating body 6 in the second direction can also be uniformly arranged, thereby prolonging the service life of the heating body 6.

[0042] In some embodiments, please continue to refer to Figure 1 and Figure 2, the heating section 621 is a straight section, and the included angle between any two adjacent heating sections 621 is not zero, which helps to arrange the extension direction of each heating section 621 to be an acute angle with the first direction, and each heating section 621 helps to balance the heat of the heating body 6 in the second direction. Further, the included angle between any two adjacent heating sections 621 in the first direction is equal, and the heating portion 62 can be a regular polyline structure in the first direction. In the embodiment in which the number of heating sections 621 connected head to tail in the heating portion 62 in the first direction is even, the heating portion 62 can be symmetrically arranged in the first direction, which facilitates the processing of the heating body 6. Of course, the number of heating sections 621 connected head to tail in the heating portion 62 in the first direction can also be odd, which can make the heating portion 62 symmetrically arranged about the heating section 621 at the middle position in the first direction, also facilitating the processing of the heating body 6.

[0043] In some embodiments, the first direction can also be the circumferential direction of the first and second outer connecting ends 611 and 612 arranged at intervals, and the entire heating body 6 is an arc structure in the first direction. The heating body 6 can be formed by rolling a planar structure, which facilitates the installation and fixation of the heating body 6 on the liquid guide 51 having a cylindrical inner circumferential surface.

[0044] In some embodiments, in order to increase the structural strength of the heating body 6, please refer to Figure 1 and Figure 2 , the heating body 6 further comprises a first connecting portion 63. The heating portion 62 in the heating body 6 can be provided with a plurality of heating portions 62, and the plurality of heating portions 62 are arranged at intervals in the second direction. The first connecting portion 63 is connected between the adjacent two heating portions 62, so as to improve the structural strength of the entire heating body 6 in the second direction and prolong the service life of the heating body 6. It should be noted that, in order to effectively control the heat generation of the heating body 6, only the heating portion 62 is provided with current as much as possible, and the first connecting portion 63 only plays a supporting, connecting and heat transferring role, which helps to uniformly arrange the heat of the entire heating body 6 in the second direction and avoid the temperature being too low at the position between the adjacent two heating portions 62. Of course, in the embodiment in which the heating portion 62 has a plurality of heating portions 62 and the distance between the adjacent two heating portions 62 is small, the first connecting portion 63 can also be cancelled in the heating body 6.

[0045] In some embodiments, please refer to Figure 1 and Figure 2 , in order to avoid current disorder in the heating body 6, the first connecting portion 63 is arranged in a straight line structure extending in the second direction. The first connecting portion 63 can be provided with a plurality of first connecting portions 63, and the plurality of first connecting portions 63 are uniformly arranged at intervals in the first direction, which helps to uniformly arrange the heat of the heating body 6 in the first direction and the second direction, and also can ensure the strength of the heating body 6 at each position to prolong the service life of the heating body 6.

[0046] In some embodiments, referring to Figure 1 and Figure 2 The heating part 62 is arranged in a regular broken line as a whole, and two adjacent heating sections 621 in the first direction have a sharp corner protruding towards the second direction at a connecting position, and the angle of the sharp corner is an acute angle. The first connecting part 63 has a first connecting end 631 connected with the heating part 62. The first connecting part 63 has two first connecting ends 631 located at both ends of the second direction, and the first connecting end 631 is connected at the sharp corner position between two adjacent heating sections 621 in the heating part 62. For the heating section 621 located at the middle position in the second direction, the first connecting part 63 is connected at the connecting position between any two adjacent heating sections 621. In this way, the structural strength of the connecting position between two adjacent heating sections 621 in the heating part 62 can be increased, and stress concentration between two adjacent heating sections 621 in the heating part 62 can be avoided.

[0047] Further, two by two of three adjacent heating parts 62 in the second direction are connected by the first connecting part 63. The three adjacent heating parts 62 and the plurality of first connecting parts 63 connecting the three heating parts 62 enclose a plurality of hexagonal structures. Two adjacent hexagons in the second direction are arranged staggered in the first direction. In this way, the plurality of heating parts 62 and the plurality of first connecting parts 63 of the entire heating body 6 enclose a plurality of hexagonal structures arranged in the first direction and the second direction, which helps to ensure that the heat of the entire heating body 6 is uniformly arranged in the first direction and the second direction.

[0048] Of course, in other embodiments, as long as the current is stably transmitted in the first direction in the heating part 62, the first connecting part 63 between two adjacent heating parts 62 can also be arranged in a bending or curved structure, or the included angle between the extension direction of the first connecting part 63 and the second direction is not zero.

[0049] In some embodiments, referring to Figure 1 and Figure 2The heating body 6 further comprises a second connecting portion 64 connected to two sides of the heating portion 62 in the second direction, a plurality of heating portions 62 are arranged in the second direction, and the second connecting portion 64 is connected to two heating portions 62 located at the end in the second direction. The second connecting portion 64 is located on the side of the heating portion 62 away from the remaining heating portions 62 among the connected heating portion 62 and the second connecting portion 64. The second connecting portion 64 is arranged in extension in the second direction, and the second connecting portion 64 has a suspended end 641 away from the heating portion 62 in the second direction, which is flush with the end of the outer connecting portion 61 in the second direction. The first outer connecting end 611 and the second outer connecting end 612 are both extended in the second direction, and the length of the first outer connecting end 611 in the second direction is equal to the length of the second outer connecting end 612 in the second direction. The suspended end 641 of the second connecting portion 64 can be flush with one end of the first outer connecting end 611 in the second direction. The distance between the suspended ends 641 of the two second connecting portions 64 arranged in the second direction is equal to the size of the second outer connecting end 612 in the second direction. The whole heating body 6 is generally a rectangular mesh structure, which is convenient for processing and manufacturing the heating body 6.

[0050] The second connecting portion 64 has a plurality of second connecting portions 64 arranged uniformly in the first direction. The second connecting portion 64 is connected between two adjacent heating segments 621 in the heating portion 62 to avoid stress concentration between the two adjacent heating segments 621. On the one hand, it helps to increase the overall structural strength of the heating body 6. On the other hand, it also helps to transfer the heat of the heating portion 62 in the second direction, so that the heat of the heating body 6 is uniformly arranged in the second direction, thereby prolonging the service life of the heating body 6.

[0051] The application further discloses an atomization assembly, please refer to Figure 1 and Figure 2 The atomization assembly has a liquid storage cavity (not shown in the figure), an atomization cavity and an atomization channel. The liquid storage cavity is used for storing atomization liquid. The atomization cavity is in fluid communication with the liquid storage cavity, and the atomization liquid in the liquid storage cavity can enter the atomization cavity. The atomization cavity can communicate with the space outside the atomization assembly through the atomization channel, so that the aerosol generated in the atomization cavity can be discharged along the atomization channel.

[0052] The atomization assembly comprises an atomization shell (not shown in the figure) and an atomization core 10. In some embodiments, please continue to refer to Figure 3 and Figure 4 The atomization core 10 extends in the second direction, and the atomization core 10 is located in the atomization shell. Both ends of the atomization core 10 in the second direction are sealed with the atomization shell. The atomization cavity and the atomization channel are both located in the atomization core 10. The liquid storage cavity is arranged around the atomization core 10, and the atomization liquid in the liquid storage cavity can enter the atomization cavity through the atomization core 10.

[0053] The atomizing core 10 comprises the liquid guiding member 51 and the heating element 6 in any of the above embodiments. The liquid guiding member 51 has a liquid guiding surface 511 and an atomizing surface 512. The liquid guiding surface 511 is generally arranged opposite to the atomizing surface 512. The liquid guiding surface 511 is used to contact the atomizing liquid in the liquid storage cavity. The liquid guiding member 51 is used to guide the atomizing liquid from the liquid guiding surface 511 to the atomizing surface 512. The heating element 6 is located in the atomizing cavity. The heating element 6 is mounted on the atomizing surface 512. The heating element 6 can be embedded in the atomizing surface 512 or only attached to the atomizing surface 512. The heating element 6 can generate heat to heat the atomizing liquid guided to the atomizing surface 512, i.e. the atomizing cavity. The aerosol generated by the heated atomizing liquid is discharged from the atomizing channel.

[0054] In some embodiments, please refer to Figure 3 and Figure 4 The liquid guiding member 51 has a ring structure. The liquid guiding member 51 is arranged to extend in the direction of the atomizing channel, which can also be understood as extending in the second direction. The liquid guiding member 51 has an inner circumferential surface and an outer circumferential surface arranged perpendicularly to the second direction. The liquid guiding surface 511 on the liquid guiding member 51 is located on the outer circumferential surface, and the atomizing surface 512 is located on the inner circumferential surface. The liquid guiding member 51 has a central axis extending in the second direction. The central axis is located at the center of the ring structure. The first direction is set as the circumferential direction around the central axis. The heating element 6 is formed by rolling a planar structure. The heating element 6 is mounted on the inner circumferential surface of the liquid guiding member 51 and can be embedded in the inner circumferential surface. The liquid guiding member 51 can be liquid guiding cotton. After absorbing the atomizing liquid, the liquid guiding cotton expands and can embed and wrap part of the heating element 6 in the liquid guiding member 51 to fix the heating element 6 relative to the liquid guiding member 51.

[0055] Please refer to Figure 3 and Figure 4 Figure 3 Figure 4 The atomizing core 10 further comprises the base 1, the first support 2, the second support 3 and the liquid absorbing member 4. The base 1 is fixed and sealed to the atomizing shell. The first support 2 is connected to one side of the base 1 facing the atomizing cavity by buckling. The first support 2 has a first cylinder 21 extending in the second direction. The atomizing cavity is located inside the first cylinder 21. The first cylinder 21 has a first opening 211 communicating the atomizing cavity and the liquid storage cavity. The liquid guiding member 51 and the heating element 6 are located in the first cylinder 21. After absorbing the atomizing liquid, the liquid guiding member 51 is in interference fit with the cylinder wall of the first cylinder 21.

[0056] The second support 3 is located on the side of the base 1 facing the atomization cavity in the second direction, and has a second cylinder 31 extending in the second direction. One end of the second cylinder 31 is in abutting fit with the base 1 or the first support 2, and the two ends of the second cylinder 31 are in sealing fit with the atomization shell respectively. The liquid storage cavity is located between the second cylinder 31 and the atomization shell. The first cylinder 21 is located in the second cylinder 31. The second cylinder 31 is provided with a second opening 311 on the cylinder wall, which communicates the inside and outside of the second cylinder 31. The liquid suction member 4 is located between the first cylinder 21 and the second cylinder 31. The atomization liquid in the liquid storage cavity can be absorbed by the liquid suction member 4 through the second opening 311, and further enter the atomization cavity through the first opening 211, be guided to the atomization surface 512 by the liquid guide member 51, and be heated by the heating body 6 to generate aerosol.

[0057] In some embodiments, the atomization assembly can further include a liquid storage cavity and an atomization cavity arranged in the second direction. The atomization assembly includes an atomization shell, a base, and an atomization support. The atomization shell is open at both ends in the second direction, one of which forms an outlet of an atomization channel. The base is sealingly installed at the other end opening of the atomization shell in the second direction. The atomization support is sealingly installed in the atomization shell. The atomization shell and the atomization support enclose a liquid storage cavity. The atomization channel is formed by the atomization shell. The liquid storage cavity is arranged around the atomization channel. The liquid guide member in the atomization core is installed on the atomization support. The liquid guide member can be a rectangular structure. The liquid guide member has a liquid guide surface facing the liquid storage cavity and an atomization surface arranged opposite to the liquid guide surface. The atomization surface faces the atomization cavity. The atomization cavity is in communication with the atomization channel. The first direction of the heating body 6 is a straight line direction parallel to the atomization surface 512. The heating body 6 is a planar plate structure. The heating body 6 can be press-fitted and fixed on the atomization surface 512, or can be embedded on the atomization surface 512. The heating body 6 heats the atomization liquid guided to the atomization surface 512 by the liquid guide member 51. The atomization liquid heated by the heating body 6 generates aerosol and is discharged from the atomization channel.

[0058] The electronic atomization device includes a power supply assembly (not shown in the figure) and the atomization assembly of any of the above embodiments. The power supply assembly has a power supply electrode including a positive electrode and a negative electrode. The atomization assembly further includes a connecting electrode installed on the base. The connecting electrode has a positive electrode and a negative electrode. The positive electrode and the negative electrode of the connecting electrode are electrically connected to the first external connection end 611 and the second external connection end 612 of the heating body 6 in the atomization assembly respectively.

[0059] In some embodiments, the power supply assembly and the atomization assembly are detachably connected. The power supply assembly has a mounting slot, and the atomization assembly is installed in the mounting slot. In other embodiments, the power supply assembly and the atomization assembly are fixedly connected. The power supply electrode of the power supply assembly and the connecting electrode of the atomization assembly are in corresponding contact to supply power to the heating body 6 in the atomization assembly through the power supply assembly.

[0060] The utility model is described above with specific examples, which is only used for helping to understand the utility model and does not limit the utility model. For the skilled in the art to which the utility model belongs, according to the idea of the utility model, a number of simple deductions, deformations or substitutions can be made.

Claims

1. A heating element, characterized in that, include: The external portion includes a first external terminal and a second external terminal arranged at intervals in a first direction, the first external terminal and the second external terminal being used for the positive and negative terminals of an external power supply, respectively. A heating element is connected between the first external terminal and the second external terminal. The heating element includes a plurality of heating segments connected end to end in the first direction. The cross-sectional area of ​​the heating segments is equal everywhere in the direction perpendicular to their extension. The cross-sectional area of ​​the heating segment closer to the external terminal in the first direction is smaller than the cross-sectional area of ​​the heating segment farther away from the external terminal.

2. The heating element as described in claim 1, characterized in that, The heating segment has a width dimension perpendicular to its extending direction, and the width difference between two adjacent heating segments that are at different distances from the outer portion in the first direction is equal; or... The heating segment has a radial dimension perpendicular to its extension direction, and the radial dimension difference between two adjacent heating segments that are at different distances from the outer portion in the first direction is equal.

3. The heating element as described in claim 1 or 2, characterized in that, The heating segment is a straight line segment, and the extension direction of the heating segment is arranged at an acute angle to the first direction.

4. The heating element as described in claim 3, characterized in that, In the first direction, the included angle between any two adjacent heating segments is not zero, and the included angle between any two adjacent heating segments is equal.

5. The heating element as described in claim 1 or 2, characterized in that, The heating element further includes a first connecting portion. There are multiple heating elements, and two adjacent heating elements are arranged at intervals in a second direction, which is perpendicular to the first direction. The first connecting portion connects two adjacent heating elements.

6. The heating element as described in claim 5, characterized in that, The first connecting portion is a straight structure extending in the second direction.

7. The heating element as described in claim 5, characterized in that, The first connecting portion has a first connecting end connected to the heating portion, and the first connecting end is connected between two adjacent heating segments in the first direction.

8. The heating element as described in claim 1 or 2, characterized in that, The heating element further includes a second connecting portion, which is connected to both sides of the heating element in a second direction, and the second direction is perpendicular to the first direction. The second connecting portion has a suspended end in the second direction that is away from the heating portion, and the suspended end is flush with the end of the external portion in the second direction.

9. An atomizing component, characterized in that, The device has a liquid storage chamber and an atomizing chamber. The liquid storage chamber is used to store atomizing liquid. The atomizing assembly includes an atomizing core. The atomizing core includes a liquid guiding element and a heating element according to any one of claims 1 to 8. The liquid guiding element has a liquid guiding surface and an atomizing surface. The liquid guiding surface is used to contact the atomizing liquid in the liquid storage chamber. The liquid guiding element is used to guide the atomizing liquid from the liquid guiding surface to the atomizing surface. The heating element is located in the atomizing chamber and installed on the atomizing surface. The heating element is used to heat the atomizing liquid.

10. The atomizing component as described in claim 9, characterized in that, The liquid guiding component has a ring-shaped structure, with the liquid guiding surface located on the outer circumferential surface and the atomizing surface located on the inner circumferential surface. The first direction is arranged around the central axis of the ring-shaped structure; or... The atomizing surface is a plane, the liquid guiding surface is arranged opposite to the atomizing surface, and the first direction is a straight line direction parallel to the atomizing surface.

11. An electronic atomizing device, characterized in that, It includes a power supply component and the atomizing component as described in claim 9, wherein the power supply component is electrically connected to the heating element in the atomizing component.

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