CN216293047U

CN216293047U - Atomizer and heating assembly thereof

Info

Publication number: CN216293047U
Application number: CN202121964079.1U
Authority: CN
Inventors: 乐桂荣; 周虎
Original assignee: BYD Precision Manufacturing Co Ltd
Current assignee: BYD Precision Manufacturing Co Ltd
Priority date: 2021-08-19
Filing date: 2021-08-19
Publication date: 2022-04-15
Anticipated expiration: 2031-08-19
Also published as: WO2023019731A1

Abstract

The application discloses atomizer and heating element thereof, heating element includes: a porous ceramic matrix; the two wiring plates are arranged on the porous ceramic substrate at intervals along a first direction; the heat-generating body, the heat-generating body is located on porous ceramic base member, and the heat-generating body includes: the heating section and the corresponding connection terminal dish are connected respectively to two linkage segments and heating section, and heating section includes at least one bending segment, and the bending segment has interior arc section and outer arc section, and the width between interior arc section and the outer arc section is greater than the width of linkage segment in at least one bending segment. This application is through setting up the heat-generating body that has at least one bending segment on porous ceramic base member, and the width between the inner arc section of bending segment and the outer arc section is greater than the width of linkage segment, reduces the heat-generating body including the regional difference in temperature of inner arc section and outer arc section, improves heating element bulk temperature's homogeneity, avoids appearing local hot spot, reduces the possibility that produces burnt flavor.

Description

Atomizer and heating assembly thereof

Technical Field

The application relates to the technical field of electronic cigarettes, in particular to an atomizer and a heating assembly thereof.

Background

Ceramic heaters are widely used in electronic cigarettes. The ceramic heating element generally includes a porous ceramic body for conducting liquid and a heating element provided on the porous ceramic body.

The heating wire of the existing heating element is complex in design and uneven in heating, local hot spots are easy to occur, and the possibility of generating scorched smell of the electronic cigarette is increased. Meanwhile, the service life of the atomizer is shortened due to overhigh temperature of the heating element, and the possibility that the hands of a user are scalded is increased.

SUMMERY OF THE UTILITY MODEL

An object of the present application is to provide a new technical solution for a heating assembly of an atomizer, which can at least solve the problem of uneven heating of a heating element in the prior art.

It is yet another object of the present application to provide a new solution for an atomizer comprising the heating assembly.

According to a first aspect of the present application, there is provided a heating assembly for an atomizer comprising: a porous ceramic matrix; the two wiring plates are arranged on the porous ceramic substrate at intervals along a first direction; the heat-generating body, the heat-generating body is located on the porous ceramic base member, the both ends of heat-generating body respectively with two the wiring dish electricity is connected, the heat-generating body is two curve extension between the wiring dish, the heat-generating body includes: two linkage segments and heating segment, every the linkage segment is connected respectively the heating segment with correspond the terminal pad, the heating segment includes at least one bending segment, the bending segment has interior arc section and outer arc section, at least one in the bending segment interior arc section with width between the outer arc section is greater than the width of linkage segment.

Optionally, the porous ceramic substrate has a first edge and a second edge extending along the first direction and spaced apart from each other in the second direction, and the bent section is bent toward the first edge or the second edge.

Optionally, the number of the bending sections is multiple, the bending sections are sequentially connected in the first direction, and two adjacent bending sections are bent towards the first edge and the second edge respectively.

Optionally, one of the two adjacent bending sections comprises a first inner arc section and a first outer arc section which are concave towards the first edge, and the other of the two adjacent bending sections comprises a second inner arc section and a second outer arc section which are concave towards the second edge; wherein the first inner arc segment extends toward the first edge relative to the first outer arc segment and the second inner arc segment extends toward the second edge relative to the second outer arc segment such that the width of the bend segment is greater than the width of the connecting segment.

Optionally, the openings of two adjacent bending sections are different in size, so that the areas enclosed by the bending sections are different.

Alternatively, the heat-generating bodies may be symmetrical to each other in the first direction with respect to a center line of the heat-generating body in the second direction.

Optionally, a distance between one side of the heating element close to the second edge and the second edge is 0.2mm to 0.5mm, and a width of the heating section in the first direction is in a range of 0.02mm to 1 mm.

Optionally, the thickness of the heating section is 0.01mm-1mm, and the length of the heating section is 1mm-30 mm.

Optionally, the two connecting sections are in smooth transition with the opposite sides of the two terminal pads respectively.

Optionally, the heating section is arc-shaped or wave-shaped.

Optionally, the number of the heating elements is two, the two heating elements are respectively arranged at the positions, facing the first edge and the second edge, of the wiring board, and the two heating elements are respectively connected with the two wiring boards to form a closed ring.

Optionally, the porous ceramic substrate is provided with a through hole penetrating along the thickness direction of the porous ceramic substrate, and the through hole is located between the two terminal pads.

Optionally, the heating assembly further comprises: and the two electrodes are respectively arranged on the wiring plate.

According to a second aspect of the present invention there is provided an atomiser comprising the heating assembly of the atomiser described in the above embodiments.

According to an embodiment of the disclosure, the heating body is arranged on the porous ceramic substrate and connected with the two wiring plates, the heating body is provided with at least one bending section, the width between the inner arc section and the outer arc section of the bending section is larger than that of the connecting section, the temperature difference of the heating body in the inner arc section area and the outer arc section area is reduced, the uniformity of the overall temperature of the heating assembly is improved, local hot spots are avoided, and the possibility of generating scorched smell is reduced.

Further features of the present application and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which is to be read in connection with the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the application and together with the description, serve to explain the principles of the application.

FIG. 1 is a schematic structural view of a heating assembly according to an embodiment of the present invention;

FIG. 2 is a partially enlarged view of a heating body of an embodiment of the present invention;

FIG. 3 is another schematic structural view of a heating assembly according to an embodiment of the present invention;

FIG. 4 is a schematic view of yet another construction of a heating assembly in accordance with an embodiment of the present invention;

FIG. 5 is a schematic view of yet another construction of a heating assembly in accordance with an embodiment of the present invention;

FIG. 6 is a schematic view of yet another construction of a heating assembly in accordance with an embodiment of the present invention;

FIG. 7 is a schematic view of yet another construction of a heating assembly in accordance with an embodiment of the present invention;

FIG. 8 is a schematic view of yet another construction of a heating assembly in accordance with an embodiment of the present invention;

FIG. 9 is a schematic view of yet another construction of a heating assembly in accordance with an embodiment of the present invention;

FIG. 10 is a schematic view of yet another construction of a heating assembly in accordance with an embodiment of the present invention;

FIG. 11 is a schematic view of yet another construction of a heating assembly in accordance with an embodiment of the present invention;

FIG. 12 is a schematic view of yet another construction of a heating assembly in accordance with an embodiment of the present invention;

FIG. 13 is a schematic view of yet another construction of a heating assembly in accordance with an embodiment of the present invention;

FIG. 14 is a schematic view of yet another construction of a heating assembly in accordance with an embodiment of the present invention;

FIG. 15 is a temperature field profile of a heating assembly according to an embodiment of the present invention;

fig. 16 is another temperature field profile of a heating assembly according to an embodiment of the present invention.

Reference numerals

A heating assembly 100;

a porous ceramic matrix 10; a first edge 11; a second edge 12; a through hole 13;

a terminal pad 20;

a heating element 30; a connecting section 31; a heating section 32; a bending section 321; an inner arc segment 322; an outer arc section 323; a first inner arc segment 3211; a first outer arc segment 3212; a second inner arc segment 3213; a second outer arc segment 3214;

and an electrode 40.

Detailed Description

Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the segments and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise.

The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the application, its application, or uses.

Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.

In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

The heating assembly 100 of the atomizer according to the embodiment of the present application will be described in detail with reference to the accompanying drawings.

As shown in fig. 1 to 14, a heating assembly 100 of an atomizer according to an embodiment of the present invention includes a porous ceramic base 10, two wire trays 20, and a heat generating body 30.

Specifically, two land pads 20 are disposed on the porous ceramic base 10 at intervals in the first direction. The heating body 30 is arranged on the porous ceramic base body 10, two ends of the heating body 30 are respectively electrically connected with the two wiring trays 20, the heating body 30 extends in a curve manner between the two wiring trays 20, and the heating body 30 comprises: the connecting structure comprises two connecting sections 31 and a heating section 32, wherein each connecting section 31 is respectively connected with the heating section 32 and the corresponding wire connecting disc 20, the heating section 32 comprises at least one bending section 321, the bending section 321 is provided with an inner arc section 322 and an outer arc section 323, and the width between the inner arc section 322 and the outer arc section 323 in the at least one bending section 321 is larger than the width of the connecting section 31.

In other words, as shown in fig. 1 and 3, the heating assembly 100 of the atomizer according to the embodiment of the present invention is mainly composed of the porous ceramic base 10, two terminal plates 20, and the heat generating body 30. Two terminal pads 20 are mounted on the porous ceramic substrate 10 at a spacing in a first direction (wherein the first direction is generally indicated by an arrow in fig. 3). The heating element 30 is disposed on the porous ceramic substrate 10, the heating element 30 extends substantially in a first direction, and the extension of the heating element 30 in the first direction may be an arc extension, a curved extension, or other extension. Both ends of the heating element 30 are electrically connected to the two terminal pads 20, respectively.

In the electronic cigarette structure, current is led into one of the terminal pads 20 through the conductive nail in the electronic cigarette, flows to one end of the heating element 30 through the terminal pad 20, then flows to the other terminal pad 20 from the other end of the heating element 30, and finally flows to the conductive nail in the electronic cigarette to form a complete path, so that the heating element 30 generates heat. Of course, the specific working principle of the electronic cigarette is known and realized by those skilled in the art, and is not described in detail in this application.

The heating body 30 includes two connection sections 31 and a heating section 32, one ends of the two connection sections 31 are respectively connected with two ends of the heating section 32, and the other ends of the two connection sections 31 are respectively connected with the terminal plate 20. The heating section 32 includes at least one bending section 321, as shown in fig. 1, the bending section 321 has an inner arc section 322 and an outer arc section 323. In the present application, the inner arc section 322 may be understood as an inner side of the bending section 321, i.e., a side of the bending section 321 having a larger curvature. The outer arc 323 may be understood as the outer side of the bent segment 321, i.e., the side of the bent segment 321 having the smaller curvature.

As shown in fig. 1, the width between the inner arc section 322 and the outer arc section 323 of the at least one bending section 321 is greater than the width of the connecting section 31. In the present application, the resistance of the heating element 30 is different at different portions, and the amount of heat generated is different. Due to the shortcuts of the current, the current will flow biased toward the concave portion of the bent segment 321, resulting in a larger current in the concave portion (as shown by the inner arc segment 322 in fig. 1) and a higher temperature than the convex portion (as shown by the outer arc segment 323 in fig. 1). Therefore, the heating section 32 generates high heat and high temperature in the region of the inner arc section 322 close to the bending section 321, and the region of the outer arc section 323 close to the bending section 321 generates low heat and low temperature in comparison with the region of the inner arc section 322. This application reduces the resistance of bending segment 321 through suitably increasing the width between interior arc section 322 and the outer arc section 323 in bending segment 321, reduces heat production to effectively reduce the temperature difference of interior arc section 322 and outer arc section 323, make the temperature of heat-generating body 30 more balanced.

Meanwhile, since the connection segment 31 is connected to the terminal block 20, the heat is more easily transferred to the terminal block 20 at a portion of the heating body 30 close to the terminal block 20. Through the width design that is less than kinked 321 with linkage segment 31's width, make linkage segment 31's width compare in kinked 321 narrowing, the resistance increases, and the heat that produces increases, guarantees linkage segment 31's heat production and heat transfer and realizes balancing, makes the temperature more close with other sections of generating heat, improves heating element 100 whole temperature's homogeneity, avoids appearing local hotspot, reduces the possibility that produces burnt smell.

As shown in fig. 1 to 6, in the present application, the width of the heat-generating body 30 may change non-linearly in the first direction. That is, the heating element 30 is designed to have a non-linearly tapered width. In the drawings (fig. 1 to 14) of the present application, the approximate extending direction of the heating element 30 on the porous ceramic substrate 10 is more shown, and the change in the width, the change in the length, and the like of the heating element 30 should be subject to not the visual effect in the drawings but the contents described in the text of the present application. The heat-generating body 30 shown in FIGS. 7 to 14 is difficult to visually embody the design of the heat-generating body 30 with the width varied in a non-linear manner because the width variation size of the heat-generating body 30 itself is small and it is difficult to visually embody the effect.

In the heating module 100 of the present invention, the resistance values of the heating elements 30 connected to the two terminal pads 20 are different at different positions at the same position. In the process of conducting the current on the heating element 30, a short-cut phenomenon occurs, which causes different heat generated by the heating element 30 at different positions on the porous ceramic substrate 10. Therefore, in the present application, the width of the heating element 30 is designed to be a non-linearly changing width, so that the resistance values of different parts of the heating element 30 can be ensured to be the same or substantially similar, and thus the heat generated by the heating element 30 at different positions on the porous ceramic substrate 10 is substantially the same or similar, the temperature of the heating surface is ensured to be uniform, no local hot spot exists, the excessive temperature at the position of the heating element 30 on the porous ceramic substrate 10, the scorched smell is generated, the low temperature at some positions is avoided, and the uniformity of the temperature of the heating assembly 100 is ensured. On the other hand, the heat transfer of the heating element 30 differs at different positions of the porous ceramic substrate. Therefore, by designing the heating elements 30 with different widths, the width can be designed to be narrower at a position where the heat transfer is fast, the resistance at the position can be increased, and the amount of heat generated at the position can be increased. In the same way, the position with larger resistance can be designed to have wider width, so that the resistance of the position is reduced, the heat generation quantity of the position is reduced, the balance of heat generation and heat transfer of the heating body 30 is ensured, and the uniformity of the integral temperature of the heating assembly is improved.

In the present application, the heating element 30 may adopt a heating wire, and the arrangement and structure of the heating wire are designed through analysis of heating and heat transfer of the heating wire. Thermal analysis can determine that the heating wires are uniformly arranged and cannot ensure uniform heating. Therefore, the heating wire is designed in consideration of not only heat generation but also heat conduction. Reasonable arrangement and the design of adopting gradual change width can effectively prevent the appearance of local hot spot and local hot domain, slow down the possibility that produces burnt smell greatly, can also effectively carry out heat conduction simultaneously, prevent to heat conducting layer or atomizing core because of rising temperature and decay in life-span too fast.

On the basis of the problem of uneven heating existing in the prior art, the heating assembly 100 creatively designs the specific shape trend, the interval, the width and the like of the heating body 30 according to the sum effect of heat transfer and heating, and effectively improves the uniformity of the temperature of the heating assembly 100.

Therefore, according to the heating assembly 100 of the atomizer of the embodiment of the present invention, the heating body 30 is disposed on the porous ceramic substrate 10, the heating body 30 is connected to the two terminal pads 20, the heating body 30 has at least one bending section 321, and the width between the inner arc section 322 and the outer arc section 323 of the bending section 321 is greater than the width of the connecting section 31, so as to reduce the temperature difference between the heating body 30 in the area of the inner arc section 322 and the area of the outer arc section 323, improve the uniformity of the overall temperature of the heating assembly 100, avoid the occurrence of local hot spots, and reduce the possibility of generating scorched smell.

According to an embodiment of the present invention, the porous ceramic substrate 10 has a first edge 11 and a second edge 12 extending along a first direction and spaced apart in a second direction, and referring to fig. 1 to 4, the bent section 321 is bent toward the first edge 11 and/or the second edge 12. At least one bent section 321 is connected to the connection section 31. Through set up bend segment 321 in heating section 32, increase heating section 32's whole length, increase heating section 32 and porous ceramic base member 10's area of contact, it is more loose to also make the distribution of heat-generating body 30 along first direction simultaneously, avoids heat-generating body 30 to concentrate on certain region, leads to local heat too high.

Optionally, the number of the bending segments 321 is multiple, the multiple bending segments 321 are sequentially connected in the first direction, and two adjacent bending segments 321 are bent towards the first edge 11 and the second edge 12, respectively. Through limiting the opposite bending directions of the adjacent bending sections 321, the overall structure of the heating body 30 can be more balanced, the length of the heating body 30 is longer, the distribution range on the porous ceramic substrate 10 is wider, and the temperature uniformity of the heating assembly 100 is further improved. It should be noted that, in the drawings of the present application, the boundaries of the regions for identifying the bending section 321, the heating section 32 and the connecting section 31 are not limited to the dashed-line frame regions in the drawings (as shown by dashed-line frames in fig. 1, 4, 5, 7, 9 and 11), but are only used for explaining different positions, and are not used as limitations.

Optionally, referring to fig. 1 to 6, the openings of two adjacent bending sections 321 are different in size, so that the areas enclosed by the bending sections 321 are different. By reasonably designing the opening size or the opening direction of the bending section 321, the appropriate opening distance can generate the enclosure effect of the heating section 32, and the effective heating area is increased (as shown in fig. 15). In this application, can be according to actual heat production needs, through specifically setting up opening size, length, the angle of buckling and the camber of buckling etc. of bending section 321, can further guarantee heating element 100's temperature homogeneity.

According to an embodiment of the present invention, referring to fig. 2, one of the two adjacent bending segments 321 includes a first inner arc segment 3211 and a first outer arc segment 3212 recessed toward the first edge 11, and the other bending segment 321 includes a second inner arc segment 3213 and a second outer arc segment 3214 recessed toward the second edge 12. The first inner arc segment 3211 extends toward the first edge 11 relative to the first outer arc segment 3212, the second inner arc segment 3213 extends toward the second edge 12 relative to the second outer arc segment 3214, and the width of the bending segment 321 is greater than that of the connecting segment 31.

Specifically, the width of the heat-generating body 30 changes nonlinearly in the present application. For different parts of the heating element at the same position. Due to the shortcuts of the current, the concave portion (as shown by the first inner arc segment 3211 and the second inner arc segment 3213 in fig. 2) has a higher current and a higher temperature than the convex portion (as shown by the first outer arc segment 3212 and the second outer arc segment 3214 in fig. 2). Wherein the temperature field distribution is shown generally at 15. If the dotted line in fig. 2 is set to have the same width, the temperature at the first inner arc segment 3211 is higher than the temperature at the first outer arc segment 3212, and the temperature at the second inner arc segment 3213 is higher than the temperature at the second outer arc segment 3214. In order to prevent the temperature difference between the inner side and the outer side from being too large, the first inner arc segment 3211 and the second inner arc segment 3213 are respectively stretched outwards relative to the dotted line position in fig. 2, so as to enlarge the inner arc and increase the width of the inner arc, thereby reducing the local over-high temperature and ensuring the uniform temperature of the heating assembly 100 as a whole (see the temperature field distribution in fig. 15 specifically).

In some embodiments of the present invention, the side of the heat-generating body 30 close to the second edge 12 is spaced from the second edge 12 by 0.2mm to 0.5mm, and the width of the heating section 32 in the first direction is in the range of 0.02mm to 1 mm. The thickness of the heating section 32 is 0.01mm-1mm, and the length of the heating section 32 is 1mm-30 mm.

That is, as shown in fig. 3, the porous ceramic base 10 has a first edge 11 and a second edge 12, and the first edge 11 and the second edge 12 extend in a first direction of the porous ceramic base 10 and are spaced apart in a second direction of the porous ceramic base 10 (the first direction and the second direction are shown by arrows in fig. 3). For example, the first direction may be defined as a left-right direction (see an arrow direction in fig. 1), and the second direction may be defined as an up-down direction. The first edge 11 and the second edge 12 extend along the left-right direction and are distributed at intervals in the up-down direction. It will be understood by those skilled in the art that the first edge 11 and the second edge 12 are concepts employed for ease of description only, and that the first edge 11 and the second edge 12 are not strictly defined by boundaries.

The region of the porous ceramic substrate 10 between the first edge 11 and the second edge 12 may serve as a load-bearing mounting region, for example, a mounting land 20 and a heating body 30. The heating element 30 is arranged at a position of the terminal plate 20 close to the second edge 12, and the side of the heating element 30 close to the second edge 12 is 0.2mm-0.5mm away from the second edge 12. The heating body 30 is arranged in the range of 0.2mm-0.5mm away from the second edge 12, so that the heating body 30 is ensured to have the optimal distance with the second edge 12 of the porous ceramic base 10, the heating condition of the edge of the porous ceramic base 10 is reduced, the temperature at the edge of the porous ceramic base 10 is prevented from being too high, the service life of a structure (such as a shell or silica gel and the like) of the atomizer close to the edge of the porous ceramic base 10 is influenced, and meanwhile, when the atomizer is used by a user, the hand is easily scalded by high temperature.

In some embodiments of the present invention, as shown in FIGS. 1 to 6, the heat-generating bodies 30 are symmetrical to each other in the first direction with respect to the center line of the heat-generating bodies 30 in the second direction. That is, the entire curve of the heating element 30 of the present invention can be bilaterally symmetrical, and the uniformity of the temperature of the heating element 30 can be further improved by providing the heating element 30 which is bilaterally symmetrical.

Referring to fig. 1 to 6, the heating element 30 mainly comprises two connecting sections 31 and a heating section 32, wherein the width of the connecting section 31 changes in a non-linear manner in the first direction, and the width of the heating section 32 changes in a non-linear manner in the first direction, so as to ensure that the resistance values of different parts of the connecting section 31 and the heating section 32 in the heating element 30 are the same or substantially similar, so that the heat generated by the heating element 30 at different positions on the porous ceramic substrate 10 are substantially the same or similar, the temperature of the heating surface is ensured to be uniform, no local hot spot exists, the excessive high temperature at the position of the heating element 30 on the porous ceramic substrate 10 and the scorched smell are generated, the low temperature at some positions is avoided, and the uniformity of heat generation and heat conduction of the heating assembly 100 is ensured. Meanwhile, the design of the connecting section 31 is changed in width, so that the fracture risk caused by overlarge temperature difference is favorably reduced.

One end of each of the two connecting sections 31 is connected to the two ends of the heating section 32, and the other end of each of the two connecting sections 31 is connected to the two terminal pads 20. Wherein the width of the heating section 32 in the first direction ranges from 0.02mm to 1 mm. By reasonably designing the width range of the heating section 32, the resistance values of different parts of the heating section 32 can be adjusted, the resistance values of different parts of the heating section 32 are basically consistent or the same, and the uniformity of heat generation of the heating section 32 is ensured.

Alternatively, the thickness of the heating section 32 is 0.01mm to 1mm, and the length of the heating section 32 is 1mm to 30 mm. In the application, the heating section 32 is arranged between the two connecting sections 31, and the width of the heating section 32 can be adjusted according to the distribution of the temperature field, so that the temperature distribution of the whole heating area is uniform. The width of the heating section 32 is set to 0.02-1mm, and the resistance value of the heating section 32 can be further adjusted by adjusting the thickness of the heating section 32, so as to obtain the heating element 30 with uniform resistance value. The total length of the heating section 32 can be adjusted according to the required heating power density, and the length range is 1-30 mm. Therefore, by adjusting the width, thickness, length, etc. of the heating section 32, the uniformity of heat generation by the heating section 32 can be further improved.

In the present application, as shown in fig. 1 and 3, the connection pads 20 may be substantially square in cross section, two connection sections 31 are respectively connected to opposite sides of the two connection pads 20, and the two connection sections 31 are respectively in smooth transition with the two connection pads 20. In the present application, the heat-generating body 30 is compressed or stretched in a tangential direction of a curve of the heat-generating body 30 at every place due to a difference in expansion rate between the heat-generating body 30 and the porous ceramic base 10 and the land 20 during heating and cooling. And the smooth transition mode is adopted, so that the stress at each position on the connecting section 31 cannot be superposed in one direction, and the risk of fracture of the connecting section 31 under the condition of large temperature difference is reduced.

In the present application, as shown in fig. 4 to 14, the terminal pad 20 may be provided with a circular cross section, and it is more convenient to fit the circular body of the tip of the conductive nail by providing the circular terminal pad 20. As shown in fig. 7 and 8, the connection segment 31 and the land 20 may be vertically connected at a position facing the second edge 12, thereby avoiding a problem that the land 20 and the connection segment 31 are easily broken due to a temperature difference and a difference in expansion rate from the porous ceramic base 10. A vertical connection in this application is to be understood as a connection in a substantially vertical direction, not strictly a 90 ° connection. Alternatively, as shown in fig. 9 and 10, the two connecting segments 31 are rounded off from the two circular terminal pads 20 toward the second edge 12. Of course, the area where the two connecting segments 31 respectively round with the two circular terminal pads 20 is not limited to the position of the terminal pad 20 towards the second edge 12, but may be other positions (as shown in fig. 11 and 12). By adopting a smooth transition mode, the risk of fracture of the connecting section 31 under the condition of large temperature difference can be further reduced.

In the present application, the heating section 32 is arcuate or wavy in shape. As shown in fig. 7 to 12, the heating section 32 may be provided in an arc shape. As shown in fig. 3 to 6, the heating section 32 may be shaped in a wave shape. The arc-shaped opening of the heating section 32 faces the terminal pad 20. The width of the arc-shaped heating section 32 varies non-linearly in the first direction, and the thickness of the arc-shaped heating section 32 varies non-linearly in the first direction. In the present application, the enlarged views of the heating element 30 shown in fig. 3 to 14 are not shown, but only the approximate extending direction of the heating element 30 on the porous ceramic substrate 10 is shown, and the changes in the width, length, etc. of the heating element 30 should be subject to not the visual effects in the drawings, but the contents written in the specification of the present application. The heat-generating body 30 shown in fig. 3 to 14 is difficult to visually embody the design of the heat-generating body 30 with the non-linearly tapered width, because the width variation size of the heat-generating body 30 itself is small, it is difficult to form the visual effect, and the visual effect can be visually changed only by using the partial enlarged view like fig. 2. The temperature field distribution of the curved heating section 32 is shown in fig. 16. This application is through the mode that designs into the nonlinear variation with the width and/thickness of heat-generating body 30, can guarantee that the resistance value at every different positions of heat-generating body 30 is the same or basically similar, thereby make the produced heat of different positions of heat-generating body 30 on porous ceramic base member 10 the same or similar basically, guarantee that the temperature of heating surface is even, there is not local hot spot, can not cause the position temperature that heat-generating body 30 appears on porous ceramic base member 10 too high, produce burnt flavor, some position temperature is low, guarantee the homogeneity of heating element 100 heat production and heat conduction.

According to one embodiment of the present invention, the heat-generating bodies 30 are two, two heat-generating bodies 30 are provided at the positions of the terminal plate 20 facing the first edge 11 and the second edge 12, respectively, and the two heat-generating bodies 30 are connected to the two terminal plates 20, respectively, to form a closed loop shape.

In other words, in the present application, referring to fig. 1 to 12, one heating element 30 may be provided, a heating element 30 may be a heating wire, one heating element 30 may be provided at a position of the connection plate 20 close to the second edge 12, and by reasonably designing the width, thickness, length, and other dimensions of the heating element 30, the resistance values of the heating element 30 at each position are equivalent, and the heating uniformity of the heating assembly 100 is ensured.

Two heating elements 30 may be employed, and as shown in fig. 13 and 14, two heating elements 30 may be provided at the positions of the terminal plate 20 toward the first edge 11 and the second edge 12, respectively. The two heating elements 30 are connected to the two terminal plates 20, respectively, to form a closed loop. By providing two heating elements 30, the uniformity of heating of the porous ceramic base 10 can be improved.

In the present application, the cross-section of the porous ceramic substrate 10 may be provided in an oval shape or other irregular shapes. Referring to fig. 1 and 3, the porous ceramic base 10 is provided with a through-hole 13 penetrating in a thickness direction thereof, the through-hole 13 being located between two terminal pads 20. Through hole 13 on the porous ceramic base member 10 can communicate the air outlet channel in atomizing chamber and the electron cigarette casing, and the smog in the atomizing chamber can get into the air outlet channel in the casing through hole 13, and then get into human mouth, satisfies user's suction demand.

In some embodiments of the present invention, the heat generating body 30 is disposed on the surface of the porous ceramic substrate 10 by printing, and thus the heat generating body 30 may be disposed to be spaced apart from the through-hole 13.

In some embodiments of the present invention, the heating assembly 100 further includes two electrodes 40, and the two electrodes 40 are respectively disposed on the terminal pads 20.

That is, as shown in fig. 1, 4, 5, 7, 9 and 11, the two terminal pads 20 may be respectively provided with electrodes 40, and the electrodes 40 may be adapted to the installation positions of the conductive pins in the electronic cigarette by providing the electrodes 40 on the terminal pads 20. The two electrodes 40 are respectively positive and negative electrodes, and the positive and negative electrodes are spaced apart along the first direction. One of the terminal pads 20 is provided around the positive electrode and can be electrically connected to the positive electrode, and the other terminal pad 20 is provided around the negative electrode and can be electrically connected to the negative electrode. In the present application, the left electrode 40 is a positive electrode, the right electrode 40 is a negative electrode, the heating element 30 is disposed on the porous ceramic base 10, the left end of the heating element 30 is electrically connected to the land 20 corresponding to the positive electrode, and the right end of the heating element 30 is electrically connected to the land 20 corresponding to the negative electrode.

When the positive electrode and the negative electrode are energized, current can flow out of the positive electrode, flow to the left end of the heating body 30 after passing through the wire connecting disc 20 surrounding the positive electrode, then flow to the right end of the heating body 30 from the left end of the heating body 30, and finally flow to the negative electrode after passing through the wire connecting disc 20 surrounding the negative electrode, forming a complete path, so that the heating body 30 generates heat.

Of course, in the present application, the heating element 100 may not be provided with the electrode 40, and the conductive pin in the electronic cigarette may be directly connected to the connection pad 20, so as to implement the whole current loop of the heating element 100.

In summary, according to the heating assembly 100 of the atomizer of the embodiment of the present invention, the heating element 30 is disposed on the porous ceramic substrate 10, the heating element 30 is connected to the two terminal pads 20, the heating element 30 has at least one bending section 321, and the width between the inner arc section 322 and the outer arc section 323 of the bending section 321 is greater than the width of the connecting section 31, so as to reduce the temperature difference between the heating element 30 in the area of the inner arc section 322 and the area of the outer arc section 323, thereby ensuring the balance between the heating element heating and the heat conduction, improving the uniformity of the overall temperature of the heating assembly 100, avoiding the occurrence of local hot spots, and reducing the possibility of generating scorched smell.

According to a second aspect of the present invention there is provided an atomiser comprising the heating assembly 100 of the atomiser of the above embodiments. Since the heating assembly 100 of the atomizer according to the embodiment of the present application has the above technical effects, the atomizer according to the embodiment of the present application also has the above technical effects. The atomizer of this application is through adopting this heating element 100 promptly, can effectively improve the homogeneity of heating element 100 bulk temperature, avoids appearing local hotspot, reduces the possibility that produces burnt flavor.

Other constructions and operations of atomizers according to embodiments of the present application are known to those of ordinary skill in the art and will not be described in detail herein.

Although some specific embodiments of the present application have been described in detail by way of example, it should be understood by those skilled in the art that the above examples are for illustrative purposes only and are not intended to limit the scope of the present application. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the present application. The scope of the application is defined by the appended claims.

Claims

1. A heating assembly for an atomizer, comprising:

a porous ceramic matrix;

the two wiring plates are arranged on the porous ceramic substrate at intervals along a first direction;

the heat-generating body, the heat-generating body is located on the porous ceramic base member, the both ends of heat-generating body respectively with two the wiring dish electricity is connected, the heat-generating body is two curve extension between the wiring dish, the heat-generating body includes: two linkage segments and heating segment, every the linkage segment is connected respectively the heating segment with correspond the terminal pad, the heating segment includes at least one bending segment, the bending segment has interior arc section and outer arc section, at least one in the bending segment interior arc section with width between the outer arc section is greater than the width of linkage segment.

2. The heating assembly of the atomizer of claim 1, wherein said porous ceramic substrate has a first edge and a second edge extending in said first direction and spaced apart in a second direction, said inflection segments being bent toward said first edge or said second edge.

3. The heating assembly of claim 2, wherein the bending section is a plurality of bending sections, the bending sections are sequentially connected in the first direction, and two adjacent bending sections are bent towards the first edge and the second edge respectively.

4. The heater assembly of claim 3, wherein one of two adjacent bend segments comprises a first inner arc segment and a first outer arc segment that are concave toward the first edge, and the other of two adjacent bend segments comprises a second inner arc segment and a second outer arc segment that are concave toward the second edge; wherein the first inner arc segment extends toward the first edge relative to the first outer arc segment and the second inner arc segment extends toward the second edge relative to the second outer arc segment such that the width of the bend segment is greater than the width of the connecting segment.

5. A heating assembly for an atomizer according to claim 3 wherein said bends have different sizes of openings to provide different areas enclosed by said bends.

6. The heating element of a nebulizer of claim 2, wherein the heat-generating body is symmetrical to each other in the first direction with respect to a center line of the heat-generating body in the second direction.

7. The heating unit of an atomizer according to claim 3, wherein the side of said heat-generating body near said second edge is spaced from said second edge by a distance of 0.2mm to 0.5mm, and the width of said heating section in said first direction is in the range of 0.02mm to 1 mm.

8. The heating assembly of an atomizer according to claim 1, wherein the heating segment has a thickness of 0.01mm to 1mm and a length of 1mm to 30 mm.

9. The heater assembly of claim 1, wherein each of said two connecting segments is rounded to opposite sides of said two terminal pads.

10. The heating assembly of claim 1, wherein the heating section is arcuate or wavy in shape.

11. The heating unit for an atomizer according to claim 2, wherein said two heat-generating bodies are provided at positions of said terminal plate facing said first edge and said second edge, respectively, and said two heat-generating bodies are connected to said two terminal plates, respectively, to form a closed loop.

12. The heating element for an atomizer according to claim 1, wherein said porous ceramic substrate is provided with a through-hole extending through the thickness thereof, said through-hole being located between said terminal plates.

13. The heating assembly of a nebulizer of claim 1, further comprising: and the two electrodes are respectively arranged on the wiring plate.

14. An atomiser comprising a heating assembly of an atomiser as claimed in any one of claims 1 to 13.