Electronic atomization device, and atomizer and atomizing core thereof

Abstract

The present application relates to an electronic atomization device, an atomizer thereof and an atomizing core thereof, the atomizing core comprising a liquid absorbing body and a heating element arranged on the liquid absorbing body; the heating element comprising a heating portion, the heating portion comprising a plurality of heating points arranged in a dot matrix manner. The present application has the beneficial effect that the dot matrix atomization track arrangement can not only rapidly increase the temperature of the heating points to realize rapid atomization of the liquid aerosol generating substrate, but also conduct heat in multiple directions to prevent heat accumulation and overheating.

Description

Technical Field

[0001] This invention relates to an atomizing device, and more specifically, to an electronic atomizing device and its atomizer and atomizing core. Background Technology

[0002] Electronic atomizing devices for inhaling aerosols in related technologies include ceramic atomizing cores, which include a ceramic porous body for liquid absorption and a heating element attached to the surface of the ceramic porous body for heating and atomization.

[0003] Currently available ceramic atomizing cores typically heat the material by embedding heating wires, heating elements, or printing heating films. In existing technologies, whether it's a heating wire or a heating film, the conductive and heating paths are aligned. This means that heat is generated along the entire path and can only be transferred to both sides, causing localized high temperatures along the heating path. This can further generate harmful substances or cause the heating film to fail.

[0004] On the other hand, localized high temperatures can also be controlled by increasing the size of the heating film. For example, a heating film covering the entire surface can be printed, allowing the entire surface to conduct electricity and heat evenly, thus resulting in a more uniform temperature distribution. However, the disadvantage of this approach is that an excessively large heating surface reduces the heat flux density, slows down the heating rate of the heating film, increases the waiting time for atomization, and also affects the user's taste experience. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide an electronic atomizing device and its atomizer and atomizing core that prevent the atomizing core from overheating.

[0006] To solve the above-mentioned technical problems, the present invention provides an atomizing core for an electronic atomizing device, comprising liquid intake and a heating element disposed on the liquid intake; the heating element includes a heating part, the heating part including a plurality of heating points arranged in a dot matrix.

[0007] In some embodiments, the heating element includes at least one heating strip, which includes a plurality of portions with higher resistance and a plurality of portions with lower resistance, the portions with higher resistance being alternately connected in series with the portions with lower resistance, the portions with higher resistance forming the heating point.

[0008] In some embodiments, the width of the portion with larger resistance is smaller than the width of the portion with smaller resistance.

[0009] In some embodiments, the portion with higher resistance includes a linear portion, and the portion with lower resistance includes a circular portion.

[0010] In some embodiments, the at least one heating element is a nickel-chromium alloy heating film printed on the absorbent liquid, the heating film having a thickness of 80-120 μm, the line width of the linear portion having 180-220 μm, and the radius of the circular portion having 380-420 μm.

[0011] In some embodiments, the portion with higher resistance is made of a material with higher resistivity, and the portion with lower resistance is made of a material with lower resistivity.

[0012] In some embodiments, the material with higher resistivity includes a nickel-chromium alloy, and the material with lower resistivity includes silver.

[0013] In some embodiments, the width of the portion with greater resistance is equal to the width and / or thickness of the portion with less resistance.

[0014] In some embodiments, the thickness of the portion with higher resistance is less than the thickness of the portion with lower resistance.

[0015] In some embodiments, the width of the portion with larger resistance is greater than or equal to the width of the portion with smaller resistance.

[0016] In some embodiments, the interval between any two adjacent heating points is 0.2-5 mm.

[0017] In some embodiments, the plurality of heating points are arranged in a rectangular array or a circular array.

[0018] In some embodiments, the plurality of heating points include heating points that are independent of each other.

[0019] In some embodiments, the independent heating points include heating points whose heating is controlled by an electromagnetic field.

[0020] In some embodiments, the liquid absorber is a porous ceramic body, which includes an atomizing surface, and the plurality of heating points are uniformly distributed on the atomizing surface.

[0021] In some embodiments, the heating element includes a heating wire comprising a plurality of smaller diameter portions and a plurality of larger diameter portions, the smaller diameter portions being alternately connected in series with the larger diameter portions, the smaller diameter portions forming the heating point.

[0022] The present invention also provides an atomizer, including a liquid storage chamber, an airflow channel, and an atomization chamber, wherein the atomization chamber is located on the path of the airflow channel, and the liquid storage chamber is used to store an aerosol generation matrix; the atomizer further includes an atomization core as described above, wherein the atomization core is disposed in the atomization chamber to atomize the aerosol generation matrix from the liquid storage chamber.

[0023] The present invention also provides an electronic atomizing device, including a power supply, a control circuit, and the aforementioned atomizer, wherein the power supply is electrically connected to the heating element of the atomizer, and the control circuit controls the power supply to provide electrical energy to the heating element.

[0024] The beneficial effects of this invention are: the setting of the dot matrix atomization trajectory can not only rapidly increase the temperature of the heating point and realize the rapid atomization of the liquid aerosol generation matrix, but also conduct heat in multiple directions to prevent heat accumulation and overheating. Attached Figure Description

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments. In the accompanying drawings:

[0026] Figure 1 This is a three-dimensional structural schematic diagram of an electronic atomizing device in some embodiments of the present invention.

[0027] Figure 2 yes Figure 1 The diagram shows a three-dimensional exploded structure of the electronic atomizing device.

[0028] Figure 3 yes Figure 1 The diagram shows a three-dimensional exploded view of the atomizer in the electronic atomizing device.

[0029] Figure 4 yes Figure 1 The diagram shows a further detailed three-dimensional breakdown of the atomizer in the electronic atomizing device.

[0030] Figure 5 yes Figure 1 The diagram shows an exploded planar view of the atomizer in the electronic atomizing device.

[0031] Figure 6 yes Figure 1 The diagram shows the overall exploded cross-sectional structure of the atomizer in the electronic atomizing device.

[0032] Figure 7 yes Figure 1 A schematic diagram of the longitudinal cross-sectional structure of the atomizer in the electronic atomizing device shown.

[0033] Figure 8 yes Figure 1 The diagram shows a three-dimensional structure of the atomizing core.

[0034] Figure 9 yes Figure 8 The diagram shows the three-dimensional structure of the atomizer core with the bottom facing upwards.

[0035] Figure 10 yes Figure 8 The image shows a top view with the bottom of the atomizer core facing upwards.

[0036] Figure 11 yes Figure 8 The diagram shows the thermal field distribution of the heating element in the atomizing core.

[0037] Figure 12 This is a plan view of the atomizing core with the bottom facing upwards in some other embodiments of the present invention.

[0038] Figure 13 yes Figure 12 A flat view of the atomizer core with the conductive parts blurred.

[0039] Figure 14 yes Figure 12 The diagram shows the thermal field distribution of the heating element in the atomizing core.

[0040] Figure 15 This is a plan view of the atomizing core with the bottom facing upwards in some embodiments of the present invention.

[0041] Figure 16 This is a plan view of the atomizing core with the bottom facing upwards in some embodiments of the present invention.

[0042] Figure 17 This is a schematic diagram of the heating wire of the heating element in some embodiments of the present invention.

[0043] Figure 18 This is a cross-sectional schematic diagram of the heating element's heating tape in some embodiments of the present invention. Detailed Implementation

[0044] To provide a clearer understanding of the technical features, objectives, and effects of the present invention, specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0045] Figure 1 and Figure 2 An electronic atomizing device according to some embodiments of the present invention is shown. This device can be used to inhale aerosols. In some embodiments, it may be flat and cylindrical. It may include an atomizer 1 and a battery device 2 detachably connected to the atomizer 1. The atomizer 1 is used to contain e-liquid and generate vapor, and the battery device 2 is used to power the atomizer 1. As shown, the lower end of the atomizer 1 is inserted into the upper end of the battery device 2, and the two can be connected magnetically. It is understood that in some embodiments, the electronic atomizing device may also be cylindrical or other shapes, and the atomizer 1 and battery device 2 may not be detachable.

[0046] like Figure 3As shown, in some embodiments, the atomizer 1 may include an atomizing component 10 and a liquid storage chamber 20 fitted onto the atomizing component 10. The atomizing component 10 can be used to heat and atomize the liquid aerosol generating matrix, and the liquid storage chamber 20 can be used to store the liquid aerosol generating matrix for supply to the atomizing component 10.

[0047] See also Figures 4 to 7 The atomizing assembly 10 includes a lower seat 11, an atomizing core 12v disposed on the lower seat 11, a sealing sleeve 13 sleeved on the atomizing core 12v, an upper seat 14 disposed on the lower seat 11 and pressing against the sealing sleeve 13, and a sleeve 15 sleeved on the upper seat 14. After the upper seat 14 presses against the sealing sleeve 13, it tightly clamps the atomizing core 12v between the lower seat 11 and the upper seat 14. The presence of the sealing sleeve 13 can achieve a seal between the atomizing core 12v and the upper seat 14 to prevent leakage; it can also make the horizontal positioning of the atomizing core 12v more compact.

[0048] In some embodiments, the lower body 11 may include a base 111, a first support arm 112 erected on the top surface of the base 111, and a second support arm 113 erected on the top surface of the base 111 and disposed opposite to the first support arm 112. The atomizing core 12v is supported between the first support arm 112 and the second support arm 113, with its atomizing surface 1211v facing the base 111 and having a certain gap between it and the base 111. This gap forms an atomizing chamber 110 for mixing smoke and air.

[0049] In some embodiments, the base 111 may be a rectangular flat plate with two recessed grooves 1110 on its bottom surface for housing two magnetic elements 16, which are used to magnetically attach the atomizer 1 to the battery device 2. The base 111 also has hooks 1112 on its two opposite end faces for engaging with the liquid storage tank 20. The bottom of the base 111 may also have two electrode posts 1114 electrically connected to the atomizing core 12V, for connecting to the positive and negative terminals of the battery device 2, respectively.

[0050] In some embodiments, the first support arm 112 and the second support arm 113 may be plate-shaped. The inner surfaces of the first support arm 112 and the second support arm 113 are respectively recessed to form receiving grooves 1122 and 1132, for the nesting portion 142 of the upper seat 14 to be embedded therein. The receiving grooves 1122 and 1132 are formed on the upper halves of the first support arm 112 and the second support arm 113, and steps 1126 and 1136 are formed on the first support arm 112 and the second support arm 113, respectively. The two ends of the atomizing core 12v respectively overlap the steps 1126 and 1136. The outer sides of the top ends of the first support arm 112 and the second support arm 113 are respectively provided with engaging portions 1122 and 1132 for engaging with the upper seat 14. In some embodiments, the first support arm 112 and the second support arm 113 are arranged symmetrically from left to right to facilitate assembly; that is, during assembly, the assembler does not need to first distinguish which end is left and which end is right.

[0051] In some embodiments, the lower body 11 may also include a U-shaped air inlet structure 114 and a U-shaped air outlet structure 115. The air inlet structure 114 and the air outlet structure 115 are respectively connected to the outer sides of the first support arm 112 and the second support arm 113, and both extend horizontally outward. The first support arm 112 has a through hole 1120 that connects the air inlet structure 114 to the atomizing chamber 110, and the second support arm 113 has a through hole 1130 that connects the air outlet structure 115 to the atomizing chamber 110, so as to introduce air to carry away the smoke in the atomizing chamber 110; the through holes 1120 and 1130 are respectively located below the receiving grooves 1122 and 1132.

[0052] See also Figures 8 to 10 In some embodiments, the atomizing core 12v may include a porous body 121v and a heating element 122v disposed on the bottom surface of the porous body 121v. In some embodiments, the porous body 121v may include a sintered porous ceramic body for absorbing liquid aerosol to form a matrix, serving as a liquid absorber. In some embodiments, the heating element 122v may include a first electrode connection portion 1221v for connection to a first electrode lead, a second electrode connection portion 1222v for connection to a second electrode lead, and a heating element 1223v disposed between the first electrode connection portion 1221v and the second electrode connection portion 1222v. The heating element 1223v has a high resistance and can generate heat when current passes through it. The first electrode connection portion 1221v and the second electrode connection portion 1222v have low resistance and are mainly used for electrical connection. In some embodiments, the heating element 1223v may be elongated and bent and turned multiple times to distribute as evenly as possible on the bottom surface of the porous body 121v, thereby achieving uniform heat distribution. Figure 11 As shown.

[0053] In some embodiments, the upper seat 14 may include a generally rectangular main body 141, a nesting portion 142 extending downward from the center of the bottom surface of the main body 141, and a second air intake channel 143 extending downward from the right end of the bottom surface of the main body 141. The nesting portion 142 is annular and is housed in receiving grooves 1122 and 1132 between the first support arm 112 and the second support arm 113 of the lower seat 111, and is fitted around the sealing sleeve 13. The upper seat 14 also includes two liquid channels 144 extending from the top surface to the bottom surface of the main body 141, a channel 145 formed on the sidewall surrounding the right liquid channel 144 and communicating with the second air intake channel 143, and a second air outlet channel 146 communicating with the channel 145. The second air outlet channel 146 extends through the center of the top surface of the upper seat 14 and communicates with the channel 145. The upper seat 14 has two recessed holes 147 on its top left end, which cooperate with the sleeve 15 to provide positioning and anti-fouling functions. The upper seat 14 also includes a downwardly extending hook 148 to hook onto the lower seat 11.

[0054] In some embodiments, the sleeve 15 may be a silicone sleeve, which may include a top wall 151, an annular first baffle 152 extending downward from the periphery of the top wall 151, and two U-shaped second baffles 153 and 154 extending downward from both ends of the first baffle 152, respectively. The top wall 151 has two liquid inlet holes 155 and a sleeve vent channel 156. The two liquid inlet holes 155 correspond to the two liquid channels 144 of the upper seat 14, respectively. The sleeve vent channel 156 is inserted into and communicates with the second vent channel 146 of the upper seat 14. The first baffle 152 covers the side wall of the main body 141 of the upper seat 112, covering the groove 145 on the side wall to form a closed annular upper seat connection channel. The second baffles 153 and 154 respectively cover the air inlet structure 1114 and air outlet structure 1115 of the lower seat 111, forming a sealed first air inlet channel and a first air outlet channel together with the first support arm 1112 and the second support arm 115. A first air inlet hole 157 is formed on the left side of the second baffle 153, which is used to connect with the external environment to introduce air into the first air inlet channel. The first air outlet channel is connected to the second air inlet channel 143. Two positioning posts 158 extend downward from the left end of the bottom surface of the top wall 151 of the sleeve 15 to cooperate with the two positioning holes 147 of the upper seat 14, mainly to ensure that the first air inlet hole 157 on the left side of the sleeve 15 is accurately located on the left side of the combination of the upper seat 112 and the lower seat 111, ensuring that it is connected to the first air inlet channel and serving as a foolproof function.

[0055] The liquid storage chamber 20 includes a housing 21 with an air outlet 210 and an airflow pipe 22 disposed in the housing 21 and communicating with the air outlet 210. The housing 21 includes a liquid storage part 211 and a sleeve part 212 connected to the liquid storage part 211. A liquid storage cavity 23 is formed between the liquid storage part 211 and the airflow pipe 22. The liquid storage cavity 23 includes an outlet 230. The sleeve part 212 is connected to the periphery of the outlet 230 for tightly fitting onto the atomizing assembly 10. A step 213 is formed between the inner wall surface of the sleeve part 212 and the inner wall surface of the liquid storage part 211, and the step 213 abuts against the top surface of the atomizing assembly 10. In some embodiments, the sleeve part 212 is integrally formed with the liquid storage part 211. The air outlet 210 can be configured in a flat, funnel shape as a suction nozzle.

[0056] The airflow duct 22 extends from the air outlet 210 toward the liquid outlet 230, and its end extends into the sleeve portion 212, where it is inserted into the air outlet 156 of the sleeve body 15, thereby connecting with the second air outlet channel 146. The sleeve portion 212 also has second air inlets 2120 on its left and right sides, with the second air inlet 2120 on the left side connecting with the first air inlet 157 of the sleeve body 15, allowing air from outside the housing 21 to enter the first air inlet channel formed by the sleeve body 15 and the lower seat 11. Preferably, the housing 21 is symmetrically arranged to facilitate assembly; otherwise, if only one side has a second air inlet 2120, the assembly process would require an additional step of determining whether the second air inlet 2120 is on the same side as the first air inlet 157. The inner walls on the left and right sides of the sleeve 212 are also provided with slots 2122, which are respectively engaged with the hooks 1112 of the lower seat 111, so that the housing 21 and the lower seat 111 can be easily snapped together.

[0057] In the above embodiment, the heating element 121v of the atomizing core 12v can meet the heating requirements of the electronic atomizing device to a certain extent. However, since the heating part 1223v of the heating element 121v is elongated and heats up along its entire length, from a planar perspective, the left and right directions of a certain point in the heating part 1223v have similar heat flux densities. Therefore, heat cannot be conducted to the left and right, but can only be conducted to the up and down directions (e.g., ...). Figure 10 As indicated by the arrow, it is prone to accumulating heat locally, leading to overheating (as shown by the arrow). Figure 11 (As shown).

[0058] In some embodiments, to achieve more uniform temperature across the entire atomizing surface, a heating film is printed across the entire surface, forming a surface-type heating trajectory. While this surface-type heating trajectory offers the advantage of uniform temperature across the heating surface, it also has certain disadvantages. To ensure uniform heating across the entire atomizing surface, the heating surface must be large, resulting in a lower heat flux density. Low heat flux density leads to a slower heating rate, preventing the atomization temperature required for liquid aerosol generation from being reached for an extended period. This results in a slower response, insufficient aerosol production, and a deteriorated taste.

[0059] Figure 12 Atomizing core 12 in other embodiments of the present invention is shown, which can serve as an alternative to the aforementioned atomizing core 12v and can solve the problem of localized heat accumulation in the aforementioned atomizing core 12v. For example... Figure 12 As shown, the atomizing core 12 may include a porous body 121 and a heating element 122 disposed on the bottom surface of the porous body 121. In some embodiments, the porous body 121 may include a sintered porous ceramic body for absorbing liquid aerosol to generate a matrix. In some embodiments, the heating element 122 may be a heating film using a nickel-chromium alloy as the heating material. The heating film may be formed on the surface of the porous body 121 by printing, and its thickness may be 100 μm. In some embodiments, the heating element 122 may also include a first electrode connection portion 1221 for connection to a first electrode lead, a second electrode connection portion 1222 for connection to a second electrode lead, and a heating portion 1223 connected between the first electrode connection portion 1221 and the second electrode connection portion 1222.

[0060] In some embodiments, the heating element 1223 includes several parallelly spaced heating elements. Each heating element includes several alternately arranged linear portions and several circular portions, with the linear portions forming nodes connecting the circular portions. The linewidth of the linear portions can be 200 μm, and the radius of the circular portions can be 400 μm. Due to the difference in linewidth, the resistance is concentrated at the nodes (linear portions) with narrower linewidths. The linear portions form heating units 1223a with higher resistance, and the circular portions form conductive units 1223b with lower resistance. The nodes are evenly spaced in both the horizontal and vertical directions, thus forming a dot-matrix distribution of heating trajectories. Understandably, in some embodiments, the thickness of the heating film can be 80-120 μm, the linewidth of the linear portions can be 180-220 μm, and the radius of the circular portions can be 380-420 μm.

[0061] like Figure 13As shown, heat can diffuse in four directions when viewed from a planar perspective. Therefore, by adjusting the spacing of the heating points (heating unit 1223a), the heat-affected zones of each heating point overlap, thus forming a relatively uniform high-temperature region, effectively solving the problem of overheating caused by heat accumulation. In some embodiments, the distance between any two adjacent heating points can be set between 0.2 and 5 mm.

[0062] The heating characteristics of the heating element 122 were simulated. After applying a 6.5W DC current, the heating element 122 heated up rapidly. Considering the heating element 122 itself and the heat conduction process to the ceramic substrate, the temperature distribution after 3 seconds was obtained as follows: Figure 14 As shown in the figure. The simulation results are consistent with expectations. The main heating points and main heating areas are concentrated at the nodes where two circular parts intersect, and the generated heat tends to be conducted in four directions. At the same time, the temperature of each heating point is close to uniform, and the spacing is uniform, forming a dot-matrix heating trajectory. It can be understood that although the heating points in the figure are arranged in a rectangular array, it is not limited to this. In some embodiments, the heating points can also be arranged in a circular array or other irregular array arrangements. It can be seen that the design of the dot-matrix atomization trajectory can not only make the temperature of the heating points rise rapidly, realizing the rapid atomization of the liquid aerosol generation matrix, but also conduct heat in multiple directions, preventing heat accumulation and overheating. It can be understood that the heating element 122 is not limited to a heating film, but can also be a heating wire, heating plate, or other suitable heating elements.

[0063] In a dot-matrix heating trajectory, heat control at the heating point is achieved by controlling the resistance value at various points on the heating film. According to Q = I²R·t, assuming a consistent current throughout the system, locations with higher resistance generate more heat. Therefore, various methods can be used to control the resistance at different locations. One possible method involves using a high-resistivity heating material (such as nickel-chromium alloy) for the heating point (heating unit 1223a) and a low-resistivity conductor material (such as silver) for the conductive material (conductive unit 1223b). This way, heat is generated only at the heating point, while the conductive trajectory generates almost no heat. Alternatively, when using the same material, the heat can be controlled by adjusting the linewidth of the heating film (e.g., ...). Figure 12 (See diagram) or thickness control of local resistance. Understandably, in some embodiments, a similar effect can be achieved by making the linewidth at the heating point (heating unit 1223a) thinner and the linewidth of the conductive unit 1223b thicker. Thus, it can be seen that the local resistance and heat flux density can be adjusted by adjusting the resistivity of the material, or by adjusting the linewidth of the heating film.

[0064] In summary, the atomizing core 12 in some embodiments of the present invention has at least a number of beneficial effects:

[0065] (1) By forming dispersed heat sources, the range of influence is wider.

[0066] (2) The heat flux density of the heating point is high and the heating rate is fast, which is conducive to rapid atomization and smoke production.

[0067] (3) The heat-generating point conducts heat in multiple directions, making it difficult for heat to accumulate, thus preventing heat accumulation and overheating.

[0068] (4) By adjusting the spacing between the heating points, the heat-affected zones overlap, forming a more uniform temperature distribution.

[0069] It can also be understood that, in some embodiments, the heating unit 1223a of the heating element 122 is not limited to being connected through the conductive unit 1223b. The heating unit 1223a can be an electromagnetically controlled heating unit, in which case it can be an independent heating point.

[0070] Figure 15 Atomizing core 12c in some embodiments of the present invention is shown, which can serve as an alternative to the aforementioned atomizing core 12. For example... Figure 15 As shown, the atomizing core 12c may include a porous body 121 and a heating element 122 disposed on the surface of the porous body 121. In some embodiments, the porous body 121 may include a sintered porous ceramic body for absorbing liquid aerosol to generate a matrix. In some embodiments, the heating element 122 may be a heating film using a nickel-chromium alloy as the heating material and silver as the conductive material. The heating film may be formed on the surface of the porous body 121 by printing, and its thickness may be 100 μm. In some embodiments, the heating element 122 may also include a first electrode connection portion 1221 for connection to a first electrode lead, a second electrode connection portion 1222 for connection to a second electrode lead, and a heating portion 1223 connected between the first electrode connection portion 1221 and the second electrode connection portion 1222.

[0071] In some embodiments, the heating element 1223 includes several parallel-spaced heating tapes. Each heating tape includes several alternating heating elements 1223a made of nickel-chromium alloy and several conductive elements 1223c made of silver. These heating elements 1223a and conductive elements 1223c can be linear, with a linewidth of approximately 200 μm. The heating elements 1223a are equally spaced in both the horizontal and vertical directions, thus forming a dot-matrix heating trajectory distribution. In conventional electronic atomization devices, the distance between any two adjacent heating points can be set between 0.2 and 5 mm, at which point the heat can exhibit a good uniform distribution. Understandably, this distance can be adjusted according to factors such as the heating temperature of the heating point and the atomization rate to achieve optimal uniform heat distribution. For example, when the atomization rate is constant, if the heating temperature of the heating point is higher, the distance between the heating points can be increased accordingly.

[0072] Figure 16 Atomizing core 12d in some embodiments of the present invention is shown, which can be used as an alternative to the aforementioned atomizing core 12. For example... Figure 16 As shown, the atomizing core 12d may include a porous body 121 and a heating element 122 disposed on the porous body 121. In some embodiments, the porous body 121 may include a sintered porous ceramic body for absorbing liquid aerosol to generate a matrix. In some embodiments, the heating element 122 may include a heating element 1223, which in some embodiments includes several independent heating units 1223d. These heating units 1223d may be arranged in an array and can generate heat under electromagnetic induction. The distance between each heating unit 1223d is equal in both the horizontal and vertical directions, and the distance between any two adjacent heating points can be set between 0.2-5 mm. This can also form a dot-matrix heating trajectory distribution. The heating units 1223d may be disposed on the surface of the porous body 121 or embedded in the porous body 121. Correspondingly, corresponding grooves can be formed on the surface of the porous body 121. In this case, the conductive structure is omitted, making the arrangement of the heating points more flexible. The shape of the heating unit 1223d can be any shape such as rectangular, circular, or elliptical.

[0073] Figure 17A heating element 122e is shown in some embodiments of the present invention. This heating element 122e is an alternative to the heating element 122 described above and can be embedded in a porous body 121. In some embodiments, the heating element 122e may include a heating wire made of a nickel-chromium alloy material. This heating wire may include several thinner wire segments and several thicker wire segments, which are alternately connected in series. The thinner wire segments have higher resistance and generate heat when energized, forming heating units 1223e. The thicker wire segments have lower resistance and do not generate heat or generate very little heat when energized, forming conductive units 1223f. The distance between any two adjacent heating units 1223e can be set between 0.2-5 mm. This can also form a dot-matrix heating trajectory distribution.

[0074] Figure 18 Heating element 122p is shown in some embodiments of the present invention, which is an alternative to heating element 122 described above. In some embodiments, heating element 122e may include a strip-shaped heating film made of nickel-chromium alloy material. This strip-shaped heating film may include several thinner segments and several thicker segments, which are alternately connected in series. The thinner segments have higher resistance and generate heat when energized, forming heating units 1223p. The thicker segments have lower resistance and do not generate heat or generate very little heat when energized, forming conductive units 1223q. The distance between any two adjacent heating units 1223p can be set between 0.2-5 mm. This can also form a dot-matrix heating trajectory distribution.

[0075] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. An atomizing core for an electronic atomizing device, comprising a liquid aspirator and a heating element disposed on the liquid aspirator; characterized in that, The heating element includes a heating part, a first electrode connection part, and a second electrode connection part. The heating part includes a plurality of parallel and spaced heating tapes, and the two ends of each heating tape are respectively connected to the first electrode connection part and the second electrode connection part. The heating part includes a plurality of heating points disposed on the heating tapes. The plurality of heating points are arranged in a dot matrix, and the distance between two adjacent heating points is set between 0.2-5mm.

2. The atomizing core according to claim 1, characterized in that, The heating element includes at least one heating element, which includes several portions with higher resistance and several portions with lower resistance. These portions with higher resistance are alternately connected in series with these portions with lower resistance, and the portions with higher resistance form the heating point.

3. The atomizing core according to claim 2, characterized in that, The width of the portion with higher resistance is smaller than the width of the portion with lower resistance.

4. The atomizing core according to claim 2, characterized in that, The portion with higher resistance includes a linear portion, and the portion with lower resistance includes a circular portion.

5. The atomizing core according to claim 4, characterized in that, The at least one heating element is a nickel-chromium alloy heating film printed on the absorbent liquid. The heating film has a thickness of 80-120 μm, the line width of the linear portion is 180-220 μm, and the radius of the circular portion is 380-420 μm.

6. The atomizing core according to claim 2, characterized in that, The portion with higher resistance is made of a material with higher resistivity, and the portion with lower resistance is made of a material with lower resistivity.

7. The atomizing core according to claim 6, characterized in that, The materials with high resistivity include nickel-chromium alloys, and the materials with low resistivity include silver.

8. The atomizing core according to claim 6, characterized in that, The width of the portion with higher resistance is equal to the width and / or thickness of the portion with lower resistance.

9. The atomizing core according to claim 2, characterized in that, The thickness of the portion with higher resistance is less than the thickness of the portion with lower resistance.

10. The atomizing core according to claim 9, characterized in that, The width of the portion with larger resistance is greater than or equal to the width of the portion with smaller resistance.

11. The atomizing core according to claim 1, characterized in that, The interval between any two adjacent heating points is 0.2-5 mm.

12. The atomizing core according to claim 1, characterized in that, The multiple heating points are arranged in a rectangular or circular array.

13. The atomizing core according to claim 1, characterized in that, The multiple heating points include independent heating points.

14. The atomizing core according to claim 13, characterized in that, The independent heating points include those whose heating is controlled by an electromagnetic field.

15. The atomizing core according to claim 1, characterized in that, The liquid absorber is a porous ceramic body, which includes an atomizing surface, and the plurality of heating points are evenly distributed on the atomizing surface.

16. The atomizing core according to claim 1, characterized in that, The heating element includes a heating wire, which comprises several smaller diameter portions and several larger diameter portions, which are alternately connected in series, and the smaller diameter portions form the heating points.

17. An atomizer, comprising a liquid reservoir, an airflow channel, and an atomizing chamber, wherein the atomizing chamber is located along the path of the airflow channel, and the liquid reservoir is used to store an aerosol generation matrix, characterized in that, Includes the atomizing core according to any one of claims 1 to 16, the atomizing core being disposed in the atomizing chamber to atomize the aerosol generating matrix from the liquid storage tank.

18. An electronic atomizing device, comprising a power supply and a control circuit, characterized in that, The device includes the atomizer of claim 17, wherein the power supply is electrically connected to the heating element of the atomizer, and the control circuit controls the power supply to provide electrical energy to the heating element.

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