CN118077969A

CN118077969A - Heating assembly and atomizer

Info

Publication number: CN118077969A
Application number: CN202211434884.2A
Authority: CN
Inventors: 张钊; 唐俊杰; 王丽波; 罗洪梁; 肖从文
Original assignee: Shenzhen Smoore Technology Ltd
Current assignee: Shenzhen Smoore Technology Ltd
Priority date: 2022-11-16
Filing date: 2022-11-16
Publication date: 2024-05-28
Also published as: US20240156176A1

Abstract

The invention discloses a heating component and an atomizer. The heating element comprises a liquid guide body and a heating body, the heating body is arranged on an atomization surface formed by the liquid guide body and is used for electrifying and heating, the heating body comprises a first heating part and a second heating part, the resistance temperature coefficient of the first heating part is greater than that of the second heating part, and the first heating part and the second heating part form an electric connection structure. Above-mentioned heating element, the resistance temperature coefficient of first heating portion is greater than the resistance temperature coefficient of second heating portion for the resistance change of first heating portion is greater than the resistance change of second heating portion, makes the holistic heating state of heat-generating body more easily controlled, on the basis that does not show the atomizing effect that changes through generating heat, gives attention to the effect of the accuse temperature regulation of heat-generating body.

Description

Heating assembly and atomizer

Technical Field

The invention relates to the technical field of electronic atomization, in particular to a heating component and an atomizer.

Background

In the related art, a metal heating element of a main current heating element of electronic atomization is mainly composed of iron, nickel and chromium, and has a TCR Wen Mincha, so that the temperature control precision is low, and the overheating problem is easy to occur. In order to realize the temperature control function of the heating element, it is generally necessary to use an alloy material having better performance, resulting in an increase in material cost. In the electronic atomization technology, the TCR temperature-sensitive characteristic and the material cost are difficult to be simultaneously considered.

Disclosure of Invention

The embodiment of the invention provides a heating component and an atomizer.

A heat generating component of an embodiment of the present invention includes:

conducting liquid;

the heating body is arranged on the atomization surface formed by the liquid guide body and is used for electrifying and heating; and

The heating body comprises a first heating part and a second heating part, the resistance temperature coefficient of the first heating part is larger than that of the first heating part, and the first heating part and the second heating part form an electric connection structure.

Above-mentioned heating element, the resistance temperature coefficient of first heating portion is greater than the resistance temperature coefficient of second heating portion for the resistance change of first heating portion is greater than the resistance change of second heating portion, makes the holistic heating state of heat-generating body more easily controlled, on the basis that does not show the atomizing effect that changes through generating heat, gives attention to the effect of the accuse temperature regulation of heat-generating body.

In certain embodiments, the material of the first heat generating portion comprises a first alloy, the material of the second heat generating portion comprises a second alloy, the first alloy material comprises at least one of stainless steel, silver-platinum alloy, and/or the second alloy material comprises nichrome. Thus, the consistency of the resistance temperature coefficient of the whole first heating part is ensured.

In some embodiments, the length of the first heat generating part ranges from 0.5 mm to 3.0 mm, and the length direction of the first heat generating part corresponds to the flow direction of the current flowing through the first heat generating part. Thus, the temperature measurement accuracy of the heating element can be improved.

In some embodiments, the heating body includes a heating center, the first heating portion is disposed at the heating center, and a maximum temperature of the heating body formed by heating at the heating center is greater than a maximum temperature of the heating body formed by heating at a position other than the heating center. Thus, the temperature measurement accuracy of the heating element can be improved.

In some embodiments, the heating element includes an electrode connection region, the first heating portion is disposed in the electrode connection region, and an electrode electrically connected to the heating element is disposed in the electrode connection region. Thus, the original temperature distribution condition around the heating element can be ensured.

In some embodiments, the first heat generating portion and the second heat generating portion are disposed in a fitting manner to form the parallel electrical connection structure. Thus, the temperature control effect of the heating element can be realized.

In some embodiments, two ends of the first heat generating part are electrically connected to the second heat generating parts of different segments, respectively, to form the electrical connection structure in series. Thus, the temperature control effect of the heating element can be realized.

In some embodiments, the heating element includes at least two first heating portions, and the at least two first heating portions are disposed at intervals along the extending direction of the second heating portion. That is, each of the first heat generating portions is electrically connected to a corresponding portion of the second heat generating portions. Thus, the temperature control effect on the heating element can be improved.

In some embodiments, the heating element comprises:

At least one first segment; and

And the at least one second section is connected end to form the heating body, and the extending directions of the first section and the second section are different. Thus, the heating area of the heating element can be increased.

An atomizer according to an embodiment of the present invention includes:

the heat generating component according to any one of the above embodiments.

Above-mentioned atomizer, the resistance temperature coefficient of first portion that generates heat is greater than the resistance temperature coefficient of second portion that generates heat for the resistance change of first portion that generates heat is greater than the resistance change of second portion that generates heat, makes the holistic condition of generating heat of heat-generating body more easily controlled, on the basis that does not show the atomizing effect that changes through generating heat formation, gives attention to the effect of controlling temperature regulation of heat-generating body.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

The foregoing and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:

FIG. 1 is a schematic view of a heat generating component according to an embodiment of the present invention;

FIG. 2 is another schematic structural view of a heat generating component according to an embodiment of the present invention;

FIG. 3 is a schematic view showing the structure of a heat-generating body according to an embodiment of the present invention;

FIG. 4 is another schematic structural view of the heat-generating body according to the embodiment of the present invention.

Description of main reference numerals:

A heat generating component 100;

a liquid guide 110;

A heating element 120, a first heating part 121, a second heating part 122, a first segment 123, and a second segment 124;

And an electrode 140.

Detailed Description

Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present invention and are not to be construed as limiting the present invention.

The following disclosure provides many different embodiments, or examples, for implementing different features of the invention. In order to simplify the present disclosure, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not themselves indicate the relationship between the various embodiments and/or arrangements discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the application of other processes and/or the use of other materials.

Referring to fig. 1, a heat generating component 100 according to an embodiment of the present application includes a liquid guiding body 110 and a heat generating body 120. The heating element 120 is provided on the atomization surface formed by the liquid guide 110. The heating element 120 is used for heating by energization. The heat-generating body 120 includes at least two heat-generating portions having different temperature coefficients of resistance (TCR, temperature coefficient of resistance). For ease of understanding, the heat generating portion having a large temperature coefficient of resistance is referred to as a first heat generating portion 121 in the present application; the heat generating portion having a small temperature coefficient of resistance is referred to as a second heat generating portion 122. The heat generating body 120 includes a first heat generating portion 121 and a second heat generating portion 122. The temperature coefficient of resistance (TCR, temperature coefficient of resistance) of the first heat-generating portion 121 is different from that of the second heat-generating portion 122. The first heat generating portion 121 and the second heat generating portion 122 form an electrical connection structure. The second heat generating part 122 may be understood as another structure of the heat generating body 120 other than the first heat generating part 121 that can generate heat by energization.

In the heat generating component 100, the temperature coefficient of resistance of the first heat generating portion 121 is greater than the temperature coefficient of resistance of the second heat generating portion 122. So that the relative change in the resistance value of the first heat generating portion 121 is larger than that of the second heat generating portion 122 in the case of the same temperature change, so that the overall resistance change of the heat generating body 120 is larger than that in the case of the second heat generating portion 122 alone, that is, the temperature coefficient of resistance of the whole heat generating body 120 is larger than that of the heat generating body of the second heat generating portion 122 alone. Therefore, the high temperature coefficient of resistance to the heating element 120 can be achieved without significantly changing the atomization effect by the heat generation. In this embodiment, the heating element 120 can perform a preferable temperature control effect.

It can be understood that the key of the above temperature control adjustment is to detect the resistance value of the heating element 120, and then, to correspond to the current corresponding real-time temperature, and to determine whether the temperature exceeds the threshold value, so as to perform temperature control.

In some embodiments, the liquid guide 110 may be one of porous ceramics, porous glass, porous polymer, porous metal, porous carbon, or the like. The liquid guide 110 may guide the liquid aerosol-generating substrate from the other surface of the liquid guide to the atomizing surface where the heating element 120 is located by capillary action through its own porous structure. The porous structure of the liquid guide 110 may be a through hole or a disordered hole. Wherein, the through holes can be prepared on the compact matrix by means of machining, laser drilling and the like. The disordered pores can be prepared by adding a pore-forming agent into the liquid-conducting raw material and sintering the pore-forming agent to form a porous structure with disordered pores inside. The liquid guide 110 may have a cylindrical structure, or may have other types of cylindrical structures, such as a square column structure. The atomizing surface of the liquid guide 110 provided with the heating element may be a plane or a curved surface. In the embodiment of fig. 1, the liquid guide 110 is a rectangular parallelepiped, and the atomizing surface is a plane.

Specifically, in fig. 1, the heat generating assembly 100 includes two electrodes 140. One end of the heating body 120 is electrically connected to one of the electrodes 140, and the other end of the heating body 120 is electrically connected to the other electrode 140, thereby forming an electrical connection between the heating body 120 and the two electrodes 140. The two electrodes 140 may be made of the same material as the second heat generating portion 122, or may be made of other materials. The two electrodes 140 may be made of an alloy material or a metal simple substance material containing a highly conductive material such as silver, other than the second heat generating portion 122.

It is understood that although the temperature coefficient of resistance of the first heat generating portion 121 or the second heat generating portion 122 is related to the material itself used. However, the resistance value of the heating element is still affected by factors such as the position of the first heating portion 121 or the second heating portion 122, the electrical connection between the first heating portion 121 and the second heating portion 122, the material of the first heating portion 121 or the second heating portion 122, and the specific size (e.g., surface area, thickness) of the first heating portion 121 or the second heating portion 122. The temperature coefficient of resistance of the first heat generating portion 121 is different from the temperature coefficient of resistance of the second heat generating portion 122, and may be that the temperature coefficient of resistance of the first heat generating portion 121 is greater than the temperature coefficient of resistance of the second heat generating portion 122. In addition, by providing the first heat generating portion 121, the service life, the matching property, the manufacturing cost, and the like of the heat generating component 100 may not be significantly changed.

In some embodiments, for the temperature coefficient of resistance of the first heating portion 121, the corresponding value range may be greater than 300ppm, so that the resistance of the first heating portion 121 may have sufficient sensitivity to a change in temperature.

In some embodiments, the material of the first heat generating part 121 includes a first alloy, and the material of the second heat generating part 122 includes a second alloy. The temperature coefficient of resistance of the first alloy is different from the temperature coefficient of resistance of the second alloy.

In this way, the uniformity of the temperature coefficient of resistance of the entire first heat generating portion 121 is advantageously ensured.

It can be appreciated that the alloy material has better stability in various aspects than the pure metal material, and can also exhibit good resistance change characteristics when heated, so as to ensure that the temperature coefficient of resistance of the first heating portion 121 as a whole has a consistent effect when the first heating portion needs to have a certain temperature coefficient of resistance.

In some embodiments, the second alloy material comprises nichrome. In some embodiments, the first alloy material comprises at least one of stainless steel, a silver alloy, a platinum alloy, or a silver-platinum alloy. It can be appreciated that the two different materials of the present embodiment of the application combine both cost and TCR characteristics compared to a single material heater.

Referring to fig. 1, in some embodiments, the heating body 120 includes a heating center. The first heat generating portion 121 is disposed at a heat generating center. The highest temperature of the heating element 120 formed by heating at the heating center is greater than the highest temperature of the heating element 120 formed by heating at a position other than the heating center. It is understood that the heating center is the region of the atomizing face where the temperature is highest. In general, in the embodiment in which the form of the heat generating body 120 has symmetry, the heat generating center is a geometric center or a symmetry center thereof; the reason for this is that its geometric or symmetry center is the region where the thermal field overlap is greatest. Symmetry may be in axisymmetric, centrosymmetric, rotationally symmetric, etc. symmetry. Of course, in the embodiment in which the heating element 120 does not have symmetry, the first heating portion 121 may be provided in another region in which the thermal field is relatively concentrated.

Thus, the accuracy of temperature measurement by the heating element 120 can be improved.

Specifically, in fig. 1, the heat generation center is denoted as X1. As shown in fig. 1, in the embodiment, the heating element 120 is rotationally symmetrical, that is, the heating center is the symmetry center, and the first heating portion 121 may be disposed in this region. When the heating element 120 is energized to generate heat, the temperature of the heating element 120 rises rapidly at the heat generation center. The first heating part 121 is arranged at the heating center, heat is easily conducted to the first heating part 121, and the electrical parameter of the first heating part 121 can be changed more sensitively in response to the change of temperature, so that the first heating part 121 can more accurately reflect the temperature change condition of the heating element 120, and the accuracy of measuring the temperature of the heating element 120 can be improved under the condition that the temperature change of the heating element 120 is detected through the first heating part 121.

In certain embodiments, the length of the first heat generating part 121 ranges from 0.5 mm to 3.0 mm. The longitudinal direction of the first heat generating portion 121 corresponds to the flow direction of the current flowing through the first heat generating portion 121. In this way, the accuracy of temperature measurement of the heating element 120 can be advantageously improved.

Specifically, in some cases, if the length of the first heating part 121 is less than 0.5 mm, it may be difficult for the first heating part 121 to achieve the desired effect of temperature control adjustment of the heating body 120 due to the small structural size; if the length of the first heat generating portion 121 is greater than 3.0 mm, the overall manufacturing cost may be increased due to the larger structural size of the first heat generating portion 121. In some embodiments, the length (millimeters) of the first heat generating portion 121 may be 0.5、0.6、0.7、0.8、0.9、1.0、1.1、1.2、1.3、1.4、1.5、1.6、1.7、1.8、1.9、2.0、2.1、2.2、2.3、2.4、2.5、2.6、2.7、2.8、2.9、3.0. in the embodiments shown in fig. 1 and 2, and the length direction of the first heat generating portion 121 may correspond to the B1 direction and the B2 direction. In other embodiments, the longitudinal direction of the first heat generating portion 121 may correspond to the B3 direction and the B4 direction.

In other embodiments, other dimensional parameters (such as thickness and width) of the first heating portion 121 may be defined accordingly, so as to achieve the effect of improving the accuracy of measuring the temperature of the heating element 120.

Referring to fig. 2, in some embodiments, the heating body 120 includes an electrode connection region. The first heat generating part 121 is disposed at the electrode connection region. The electrode 140 electrically connected to the heating element 120 is located at the electrode connection region.

Thus, the original temperature distribution around the heating element 120 can be ensured.

Specifically, in fig. 2, the electrode connection region is denoted as X2. The heating body 120 is electrically connected to a corresponding one of the electrodes 140 in the electrode connection region. Since the electrode connection region is away from the heat generation center, the heat generation body 120 generates heat in the electrode connection region to a small extent. By providing the first heat generating portion 121 in the electrode connection region, the influence on the temperature field around the heat generating body 120 due to the provision of the first heat generating portion 121 can be reduced. In the case where the aerosol-generating substrate is vaporized by the heat generation by the heat-generating body 120, the original heating effect of the aerosol-generating substrate can be maintained. It should be noted that, although the temperature of the electrode connection region is relatively low, the electrode connection region has a relatively larger area; therefore, the first heating part 121 is arranged in the electrode connection region, so that the temperature control and the measurement and control effects can be good.

Referring to fig. 3, in some embodiments, the first heat generating portion 121 and the second heat generating portion 122 are disposed in a fitting manner to form a parallel electrical connection structure.

In this way, the temperature control effect on the heating element 120 can be advantageously achieved.

Specifically, in fig. 3, the A1 direction and the A2 direction represent the extending direction of the heating element 120, and the A3 direction and the A4 direction represent the direction perpendicular to the surface of the heating element 120. The first heat generating unit 121 is provided along the A1 direction and the A2 direction, and is attached to the side surface of the heat generating body 120 in the A3 direction.

When the heating element 120 is energized to generate heat, a portion of the second heating element 122 having a superimposed projection with the first heating element 121 is connected in parallel with the first heating element 121 along the A3 direction and the A4 direction, so that current is conducted along the second heating element 122 and the first heating element 121 at the position where the first heating element 121 is located.

Referring to fig. 4, in some embodiments, two ends of the first heat generating portion 121 are electrically connected to the second heat generating portion 122 of different segments, respectively, to form a series connection structure.

Specifically, in fig. 4, the second heat generating portion 122 is divided into different segments. One of the segments is electrically connected to one side of the first heat generating portion 121 in the A1 direction, and the other segment is electrically connected to one side of the first heat generating portion 121 in the A2 direction, so that the first heat generating portion 121 and the second heat generating portion 122 of the two segments constitute a series-connected electrical connection structure. In this case, the first heat generating part 121 may be provided to be bonded to the liquid guide 110.

When the heating element 120 is energized to generate heat, current flows from one segment of the second heating portion 122 through the first heating portion 121, and is conducted to the other segment of the second heating portion 122. The currents flowing through the first heating part 121 and the second heating part 122 are the same, so that the heating degree of the heating body 120 is limited, and the temperature control effect of the first heating part 121 on the heating body 120 is ensured.

Referring to fig. 2, in some embodiments, the heating body 120 includes at least two first heating parts 121. At least two first heat generating portions 121 are disposed at intervals along the extending direction of the second heat generating portion 122. That is, each of the first heat generating portions 121 is electrically connected to a corresponding portion of the second heat generating portions 122.

In this way, the temperature control effect on the heating element 120 can be improved. It will be appreciated that since the atomizing surface is a plane or curved surface having an area, there is a temperature field distribution in the region of the atomizing surface, and different sub-regions may have different temperature distributions. Therefore, at least two first heat generating portions 121 are provided in the corresponding sub-areas, respectively, and the temperature of the entire atomizing area can be reflected by the relevant parameters by improving the accuracy of the temperature measurement of the entire atomizing area. The above-mentioned related parameter is mainly the resistance value of the heating element 120; in the case where the other conditions are constant, it is determined by the corresponding number of first heat generating portions 121 and the corresponding number of second heat generating portions 122 at the corresponding temperatures. Therefore, the temperature of the atomizing assembly can be controlled by measuring the resistance value of the heating element 120 and correspondingly judging the corresponding atomizing surface temperature under the resistance.

Specifically, in fig. 2, the number of first heat generating parts 121 is two. One of the first heat generating parts 121 is disposed near one of the electrodes 140, and the other first heat generating part 121 is disposed near the other electrode 140. It can be appreciated that by providing at least two first heating portions 121, all the first heating portions 121 can be matched to reduce the concentration of high temperature, so that the influence of the first heating portions 121 on the temperature change of the heating element 120 during heating can be increased, and the temperature control effect of the heating element 120 can be improved.

In addition to the foregoing embodiments, the embodiments of the present invention may also be as shown in the following table:

TABLE 1

In table 1, the temperature coefficient of resistance of the heat generating element 120 in the heat generating module 100 can be obtained by adjusting the position of the first heat generating element 121, the electrical connection between the first heat generating element 121 and the second heat generating element 122, the material of the first heat generating element 121, and the length of the first heat generating element 121 in the heat generating circuit while maintaining the basic shape of the second heat generating element 122. In the comparative example, a heating element having the same form was prepared using a material mainly composed of nichrome and containing about 20% of a glass phase, wherein the TCR of the heating element 120 was 150 ppm/. Degree.C. As described above, it is possible to determine an appropriate temperature coefficient of resistance of the heat generating body 120 according to circumstances, and to realize a corresponding temperature coefficient of resistance of the heat generating body 120 by adjusting the above-described relevant influence factors with respect to the first heat generating portion 121. The above influencing factors mainly include: the kind of material, the manner of electrical connection, geometric parameters (geometric parameters such as length, width, thickness, etc.) of the first heat generating portion 121, and the like.

Referring to fig. 1, in some embodiments, a heat-generating body 120 includes at least one first segment 123 and at least one second segment 124. The at least one first segment 123 and the at least one second segment 124 are connected end-to-end to form the heat-generating body 120. The extending directions of the first segment 123 and the second segment 124 are different.

In this way, one embodiment of forming the heat generating body 120 can be provided.

Specifically, in fig. 1, the B1 direction and the B2 direction represent the extending direction of the first segment 123, and the B3 direction and the B4 direction represent the extending direction of the second segment 124. The number of first segments 123 is plural and the number within second segments 124 is plural. For the first and second segments 123 and 124, the first and second segments 123 and 124 are alternately connected to form the heating body 120, the first segment 123 at one end of the heating body 120 is electrically connected to one electrode 140, and the first segment 123 at the other end of the heating body 120 is electrically connected to the other electrode 140.

It can be appreciated that the heat generating body 120 is in a structure of bending extension by the sequential communication between the first segment 123 and the second segment 124, which is advantageous for increasing the heat generating area that the heat generating body 120 can generate when generating heat. Moreover, through the first heating part 121 connected with the second heating part 122, the first heating part 121 can generate a heat conduction effect on the second heating part 122, so that heat generated by the second heating part 122 during heating can be better conducted in a direction away from the second heating part 122, thereby further increasing the heating area of the heating body 120, reducing the high temperature effect, enabling the heat distribution around the heating body 120 to be more uniform, and further being beneficial to enabling the temperature around the heating body 120 to be more uniform.

An atomizer (not shown) according to an embodiment of the present invention includes the heat generating assembly 100 of any of the embodiments described above.

The atomizer includes a housing (not shown), a heat generating assembly 100, and an atomizing base assembly (not shown). The atomizing base component has a mounting cavity (not shown) in which the heating component 100 is disposed; the heat generating assembly 100 is disposed within the housing 10 along with the atomizing base assembly. The housing also forms a reservoir (not shown) for storing liquid aerosol-generating substrate. Wherein the heating assembly 100 is in fluid communication with the reservoir for atomizing the aerosol-generating substrate.

The application also provides an electronic atomization device. The electronic atomizing device 100 may be used for atomizing an aerosol-generating substrate. The electronic atomization device comprises an atomizer and a host which are electrically connected with each other. The host includes a battery (not shown) and a controller (not shown). The battery is used for providing electric energy for the operation of the atomizer so that the atomizer can atomize the aerosol-generating substrate to generate aerosol; the controller is used for controlling the atomizer to work. The host computer also includes other components such as a battery holder, an air flow sensor, etc.

The above-mentioned atomizer and electronic atomizing device have all the advantages of the heat generating component 100 in that the temperature coefficient of resistance of the first heat generating portion 121 is different from that of the second heat generating portion 122. That is, the effect of controlling the temperature of the heating element 120 can be achieved without significantly changing the atomization effect by the heat generation.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., 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 invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.

In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present invention, it should be noted that the terms "mounted," "connected," and "coupled" are to be construed broadly, as well as, for example, fixedly coupled, detachably coupled, or integrally coupled, unless otherwise specifically indicated and defined. Either mechanically or electrically. Can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A heat generating assembly, comprising:

conducting liquid;

The heating body is arranged on the atomization surface formed by the liquid guide body and is used for electrifying and heating;

The heating body comprises a first heating part and a second heating part, the resistance temperature coefficient of the first heating part is larger than that of the second heating part, and the first heating part and the second heating part form an electric connection structure.

2. The heat generating assembly of claim 1, wherein the material of the first heat generating portion comprises a first alloy and the material of the second heat generating portion comprises a second alloy;

the first alloy material comprises at least one of stainless steel and silver-platinum alloy; and/or the second alloy material comprises nichrome.

3. The heat generating assembly according to claim 1, wherein a length of the first heat generating portion ranges from 0.5 mm to 3.0 mm, and a length direction of the first heat generating portion corresponds to a flow direction of a current flowing through the first heat generating portion.

4. The heat generating assembly according to claim 1, wherein the heat generating body includes a heat generating center, the first heat generating portion is disposed at the heat generating center, and a maximum temperature of the heat generating body formed by heat generation at the heat generating center is greater than a maximum temperature of the heat generating body formed by heat generation at a position other than the heat generating center.

5. The heat-generating component as recited in claim 1, wherein the heat-generating body includes an electrode connection region, the first heat-generating portion is disposed at the electrode connection region, and an electrode electrically connected to the heat-generating body is disposed at the electrode connection region.

6. The heat generating assembly of claim 1, wherein the first heat generating portion is disposed in registry with the second heat generating portion to form the parallel electrical connection.

7. The heat generating assembly of claim 1, wherein both ends of the first heat generating portion are electrically connected to the second heat generating portions of different segments, respectively, to form the electrical connection structure in series.

8. The heat generating assembly as recited in claim 1, wherein the heat generating body comprises at least two of the first heat generating portions, the at least two of the first heat generating portions being disposed at intervals along an extending direction of the second heat generating portion.

9. The heat-generating component of claim 1, wherein the heat-generating body comprises:

At least one first segment; and

And the at least one second section is connected end to form the heating body, and the extending directions of the first section and the second section are different.

10. An atomizer, comprising:

a heat generating component as claimed in any one of claims 1 to 9.