Atomization assembly and electronic atomization device

Abstract

The utility model provides an atomization assembly and an electronic atomization device.The atomization assembly comprises a porous body, a heating body and at least one detection electrode, the porous body is provided with a liquid absorption face, an atomization face and a side face, the liquid absorption face is used for receiving a liquid matrix, the atomization face and the liquid absorption face are oppositely arranged, and the side face is formed between the liquid absorption face and the atomization face; in addition, the heating element is arranged on the atomization surface, and at least one detection electrode is arranged on the liquid absorption surface or the side surface. When the liquid matrix gradually permeates into the porous body (namely, the wettability of the liquid matrix in the porous body is larger and larger), the self resistance of the porous body is gradually reduced, so that the wettability of the liquid matrix in the atomization assembly is monitored in real time in a manner of detecting the resistance value of the porous body through at least one detection electrode; and therefore, burnt smell or formaldehyde caused by dry burning of the atomization component is avoided.

Description

Technical Field

[0001] The present application relates to the technical field of electronic atomizers, and in particular to an atomization assembly and an electronic atomization device. Background Art

[0002] Nowadays, with the continuous development of electronic atomization device technology, the atomization performance of electronic atomization devices has become the primary indicator for judging electronic atomization devices. Such electronic atomization devices usually include an atomization component and a liquid storage chamber, the liquid storage chamber is used to store a liquid matrix that can be atomized, and the atomization component is used to absorb the liquid matrix and heat and atomize the liquid matrix to produce an aerosol that can be inhaled by the user. However, in the prior art, since it is impossible to monitor the wettability of the liquid matrix in the atomization component in real time, the atomization core in the atomization component often burns dry. Utility Model Content

[0003] The embodiments of the present application provide an atomization assembly and an electronic atomization device to solve the problem that the existing electronic atomization device cannot monitor the wettability of the liquid matrix in the atomization assembly in real time, so that the atomization core in the atomization assembly often burns dry.

[0004] In a first aspect, an embodiment of the present application provides an atomization assembly for atomizing a liquid matrix to generate an aerosol, the atomization assembly comprising:

[0005] A porous body, the porous body having a liquid absorption surface for receiving the liquid matrix, an atomization surface arranged opposite to the liquid absorption surface, and a side surface between the liquid absorption surface and the atomization surface;

[0006] A heating element, the heating element being arranged on the atomizing surface;

[0007] At least one detection electrode, at least one detection electrode is arranged on the liquid absorption surface or the side surface, and is used to detect the resistance of the porous body.

[0008] In one embodiment, the detection electrode includes a first detection electrode, the first detection electrode is arranged on the liquid absorption surface or the side surface, and the first detection electrode and the heating element constitute a detection circuit.

[0009] In one embodiment, the detection electrode includes a first detection electrode and a second detection electrode, the first detection electrode is arranged on the liquid absorption surface, and the second detection electrode is arranged on the side surface.

[0010] In one embodiment, the detection electrode includes a first detection electrode and a second detection electrode, and the first detection electrode and the second detection electrode are both located on the liquid absorption surface.

[0011] In one embodiment, the detection electrode includes a first detection electrode and a second detection electrode, and the first detection electrode and the second detection electrode are both located on the side surface.

[0012] In one embodiment, the straight-line distance between the detection electrode and the heating element is greater than or equal to 0.2 mm.

[0013] In one embodiment, the atomization assembly further includes a temperature sensor, and the temperature sensor is disposed on the porous body.

[0014] In one embodiment, the cross section of the detection electrode is a strip or a circle.

[0015] In one embodiment, the thickness of the detection electrode is 0.01 mm to 1 mm.

[0016] In a second aspect, an embodiment of the present application further provides an electronic atomization device, comprising a housing, a circuit board assembly, and an atomization assembly as described in any of the above embodiments.

[0017] A housing, wherein the housing defines an atomization chamber and a liquid storage chamber, wherein the liquid storage chamber is used to store a liquid matrix;

[0018] The liquid storage chamber is in fluid communication with the liquid suction surface, the atomization chamber is in gas communication with the atomization surface, and the atomization assembly is disposed between the atomization chamber and the liquid storage chamber;

[0019] The circuit board assembly is arranged on the shell, and a detection circuit is arranged on the circuit board assembly. The detection circuit is electrically connected to the detection electrode and is used to detect the resistance of the porous body.

[0020] The atomizer assembly provided in the embodiment of the present application generally contains a certain concentration of salt, water molecules and other substances present in the e-liquid in an ionic state in the atomized liquid matrix, so that the liquid matrix has a certain conductivity. At the same time, since a heating element is arranged on the atomization surface of the porous body in this embodiment, and at least one detection electrode is arranged on the liquid absorption surface or side of the porous body, when the liquid matrix gradually penetrates into the porous body (that is, when the wettability of the liquid matrix in the porous body becomes larger and larger), the resistance of the porous body itself will gradually decrease, so that the wettability of the liquid matrix in the atomizer assembly is monitored in real time by detecting the resistance value of the porous body through at least one detection electrode, thereby avoiding dry burning of the atomizer assembly to produce a burnt smell or formaldehyde. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can obtain other drawings based on these drawings without creative work.

[0022] Figure 1 This is a schematic diagram of the overall structure of the atomizer assembly provided in the first embodiment of the present application.

[0023] Figure 2 for Figure 1 The overall structural schematic diagram of the atomization assembly from another perspective is shown.

[0024] Figure 3 This is a schematic diagram of the overall structure of the atomizer assembly provided in the second embodiment of the present application.

[0025] Figure 4 for Figure 3 The cross-sectional structure diagram of the atomization assembly along the AA direction is shown.

[0026] Figure 5 This is a schematic diagram of the overall structure of the atomizer assembly provided in the third embodiment of the present application.

[0027] Figure 6 This is a schematic diagram of the overall structure of the atomizer assembly provided in the fourth embodiment of the present application.

[0028] Figure 7 This is a schematic diagram of the overall structure of the atomizer assembly provided in the fifth embodiment of the present application.

[0029] Figure 8 This is a schematic diagram of the overall structure of the atomizer assembly provided in the sixth embodiment of the present application.

[0030] Fig. 9 for Figure 8 The overall structural schematic diagram of the atomization assembly from another perspective is shown.

[0031] Fig.10 This is a schematic diagram of the overall structure of the atomizer assembly provided in the seventh embodiment of the present application.

[0032] Fig.11 for Fig.10 The overall structural schematic diagram of the atomization assembly from another perspective is shown.

[0033] Fig.12 This is a schematic diagram of the overall structure of the electronic atomization device provided in this application.

[0034] Fig.13 for Fig.12 The connection structure diagram of each component in the electronic atomization device is shown.

[0035] Description of reference numerals:

[0036] 100, atomization assembly; 110, porous body; 111, liquid absorption surface; 112, atomization surface; 113, first side surface; 114, second side surface; 115, third side surface; 116, fourth side surface; 117, side surface; 120, heating element; 130, detection electrode; 131, first detection electrode; 132, second detection electrode; 200, electronic atomization device; 210, housing; 220, circuit board assembly; 230, detection circuit. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0038] Based on the above technical problems, an embodiment of the present application provides an atomization assembly 100.

[0039] Specifically, in this embodiment, if Figure 1-2 As shown, the atomization component 100 can be used to atomize a liquid matrix to generate an aerosol, and the atomization component 100 includes a porous body 110, a heating element 120, and at least one detection electrode 130, wherein the porous body 110 has a liquid absorption surface 111, an atomization surface 112, and a side surface 117, the liquid absorption surface 111 is used to receive the liquid matrix, the atomization surface 112 is arranged opposite to the liquid absorption surface 111, and the side surface 117 is formed between the liquid absorption surface 111 and the atomization surface 112; in addition, the heating element 120 is arranged on the atomization surface 112, and at least one detection electrode 130 is arranged on the liquid absorption surface 111 or the side surface 117, so as to detect the resistance value of the porous body 110.

[0040] It is understandable that, since the liquid matrix generally contains a certain concentration of salt, water molecules and other substances that exist in the e-liquid in an ionic state, the liquid matrix has a certain conductivity. At the same time, since the present embodiment is provided with a heating element 120 on the atomization surface 112 of the porous body 110, and at least one detection electrode 130 is provided on the liquid absorption surface 111 or the side surface 117 of the porous body 110, when the liquid matrix gradually penetrates into the porous body 110 (that is, when the wettability of the liquid matrix in the porous body 110 becomes larger and larger), the resistance of the porous body 110 itself will gradually decrease, so that the resistance value of the porous body 110 is detected by at least one detection electrode 130, so as to monitor the wettability of the liquid matrix in the atomization assembly 100 in real time, thereby avoiding the dry burning of the atomization assembly 100 to produce a burnt smell or formaldehyde.

[0041] It should be noted that, in this embodiment, the porous body 110 in this embodiment can be made of a hard capillary structure such as porous ceramics, porous glass ceramics, and porous glass, and has a large number of microporous structures inside, so that the liquid matrix absorbed from the liquid absorption surface 111 can be transferred to the atomization surface 112 through the microporous structure for heating and atomization. At the same time, in the process of the porous body 110 being infiltrated by the liquid matrix, there are both chemical adsorption and physical adsorption, and the chemical adsorption and physical adsorption of the liquid matrix on the surface and grain boundaries of the porous body 110 reduce the resistance of the surface and grain boundaries, so that the total resistance of the porous body 110 decreases as the wettability of the liquid matrix increases.

[0042] Specifically, when the porous body 110 is slightly infiltrated by the liquid matrix, the conductive components in the liquid matrix are mainly chemically adsorbed, and the conductive components in the liquid matrix capture electrons from the surface of the semiconductor porous body 110, making the surface of the semiconductor porous body 110 negatively charged, so as to attract more holes to reach its surface, so that the surface resistance of the infiltrated outer layer and the internal pores decreases. At this time, the porous body 110 mainly conducts electricity by electrons or holes;

[0043] When the porous body 110 is moderately infiltrated by the liquid matrix, both chemical adsorption and physical adsorption of the liquid matrix play an important role. As the degree of infiltration increases, the adsorption of the liquid matrix changes from chemical adsorption to physical adsorption, and the conductivity changes from electron or hole conductivity to proton and ion conductivity. However, as a whole, the greater the liquid matrix infiltration of the porous body 110, the lower its volume resistivity.

[0044] When the porous body 110 is highly infiltrated by the liquid matrix, the conductive components in the liquid matrix are mainly physically adsorbed. At this time, the porous body 110 mainly conducts electricity by protons and ions in the liquid matrix.

[0045] In some embodiments, the linear distance between the detection electrode 130 and the heating element 120 may be greater than or equal to 0.2 mm, so as to avoid the distance between the detection electrode 130 and the heating element 120 being too close to affect the resistance test accuracy of the porous body 110 .

[0046] In another embodiment, if Figure 3 and Figure 4 As shown, the detection electrode 130 may include a first detection electrode 131A, which is arranged on the liquid absorption surface 111, and the first detection electrode 131A can form a detection circuit with the heating element 120, thereby not only achieving the purpose of detecting the resistance value of the porous body 110, but also saving costs and making the structure of the atomization assembly 100 more compact.

[0047] Meanwhile, in another embodiment, if Figure 5As shown, the first detection electrode 131B may also be disposed on the side surface 117 , and the first detection electrode 131B disposed on the side surface 117 may also form a detection circuit with the heating element 120 to achieve the corresponding detection purpose.

[0048] In another embodiment, if Figure 6 As shown, the detection electrode 130 may include a first detection electrode 131C and a second detection electrode 132C, wherein the first detection electrode 131C is arranged on the liquid absorption surface 111, and the second detection electrode is arranged on the side 117, so that a detection circuit is formed by the first detection electrode 131C and the second detection electrode 132C to achieve the purpose of detecting the resistance value of the porous body 110.

[0049] In another embodiment, if Figure 7 As shown, the detection electrode 130 may include a first detection electrode 131D and a second detection electrode 132D, wherein the first detection electrode 131D and the second detection electrode 132D are both arranged on the liquid absorption surface 111, so that a detection circuit is formed by the first detection electrode 131D and the second detection electrode 132D to achieve the purpose of detecting the resistance value of the porous body 110.

[0050] like Figure 8-Figure 11 As shown, the porous body 110 may include a first side surface 113, a second side surface 114, a third side surface 115 and a fourth side surface 116 formed between the liquid absorption surface 111 and the atomization surface 112, wherein the first side surface 113 and the second side surface 114 are arranged opposite to each other, and the third side surface 115 and the fourth side surface 116 are arranged opposite to each other. In another embodiment of the present application, as Figure 8 and Fig. 9 As shown, the first detection electrode 131E of the atomizer assembly 100 can be disposed on the first side surface 113, and the second detection electrode 132E can be disposed on the second side surface 114. In addition, in another embodiment of the present application, as shown in FIG. Fig.10 and Fig.11 As shown, the first detection electrode 131F of the atomizer assembly 100 can be arranged on the third side 115, and the second detection electrode 132F can be arranged on the fourth side 116; it should be noted that, in this embodiment, the specific arrangement positions of the first detection electrode 131F and the second detection electrode 132F are not limited. For example, the first detection electrode 131F can also be arranged on the first side 113, and the second detection electrode 132F can be arranged on the third side 115 (that is, two adjacent sides), which is not limited here.

[0051] In some embodiments, the atomization assembly 100 may also include a temperature sensor, which is electrically connected to the porous body 110. Specifically, since the temperature of the porous body 110 is constantly changing during operation, and the change in temperature will affect the detection accuracy of the liquid matrix wettability, a temperature sensor is provided in this embodiment, and the temperature sensor is provided on the porous body 110, and the temperature sensor is used to detect the temperature of the porous body 110 in real time, and the detected temperature of the porous body 110 is combined with the temperature influence coefficient of the liquid matrix wettability to perform temperature compensation on the detected liquid matrix wettability, so as to make the detection of the liquid matrix wettability more accurate. Measuring the wettability of the liquid matrix in the porous body 110 in this way has the characteristics of fast response time, sensitive reaction, wide applicable temperature range (can be applied in the range of -40°C to 800°C), strong anti-pollution and anti-interference capabilities, and long service life.

[0052] In some embodiments, the material of the detection electrode 130 is one or more of stainless steel, gold, silver, platinum, chrome plating or tin plating, or other metal materials with good conductivity and resistance to smoke oil corrosion; at the same time, the cross-sectional shape of the detection electrode 130 is a long strip or a circle, and the thickness of the detection electrode 130 is 0.01mm to 1mm. In addition, the material of the porous body 110 is one or more of zinc oxide, magnesium oxide, titanium oxide or silicon oxide, and the thickness of the porous body 110 is 0.2mm to 2mm.

[0053] The present application also provides an electronic atomization device 200, such as Fig.12 and Fig.13 As shown, the electronic atomization device 200 includes a shell 210, a circuit board assembly 220, a detection circuit 230 is provided on the circuit board assembly 220, and the atomization assembly 100 mentioned in any of the above embodiments, wherein the shell 210 is defined by an atomization chamber and a liquid storage chamber, the liquid storage chamber is used to store a liquid matrix, the liquid storage chamber is fluidly connected to the liquid absorption surface 111, and the atomization chamber is gaseously connected to the atomization surface 112, and the atomization assembly 100 is arranged between the atomization chamber and the liquid storage chamber; at the same time, the circuit board assembly 220 is arranged in the shell 210, and the detection circuit 230 on the circuit board assembly 220 can be electrically connected to the detection electrode 130, and is used to detect the resistance value of the porous body 110.

[0054] For details, please refer to the following table and Fig.12 and Fig.13In this embodiment, before the electronic atomization device 200 leaves the factory, the resistance of the porous body 110 under different liquid matrix infiltration degrees can be tested, and at the same time, whether the atomization component 100 will dry burn when heated and atomized under different liquid matrix infiltration degrees can be tested and recorded. After the electronic atomization device 200 leaves the factory, the resistance of the porous body 110 can be detected in real time. When it is detected that the resistance of the porous body 110 is large and the atomization component 100 may have a risk of dry burning, the porous body 110 can be controlled to be closed through the circuit board assembly 220, or the heating power of the heating element 120 can be adjusted through the circuit board assembly 220 to avoid the atomization component 100 from dry burning to produce a burnt smell or formaldehyde.

[0055] E-liquid injection amount Resistance between the two sides of the ceramic Smoke oil soaking degree Remark 0mL 3400KΩ 0 0.012mL 650KΩ 20％ 0.024mL 162KΩ 40％ 0.036mL 43KΩ 60％ 0.048mL 21KΩ 80％ 0.060mL 13.4KΩ 100％ 0.072mL 13.3KΩ 100％ There is smoke oil spilled on the surface

[0056] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0057] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more features.

[0058] The atomization assembly and the electronic atomization device provided in the embodiments of the present application are introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea; at the same time, for technical personnel in this field, according to the idea of ​​the present application, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. An atomizing assembly for atomizing a liquid matrix to generate an aerosol, characterized in that: The atomizing assembly comprises: A porous body, the porous body having a liquid absorption surface for receiving the liquid matrix, an atomization surface arranged opposite to the liquid absorption surface, and a side surface between the liquid absorption surface and the atomization surface; A heating element, the heating element being arranged on the atomizing surface; At least one detection electrode, at least one detection electrode is arranged on the liquid absorption surface or the side surface, and is used to detect the resistance of the porous body.

2. The atomizer assembly according to claim 1, characterized in that: The detection electrode includes a first detection electrode, the first detection electrode is arranged on the liquid absorption surface or the side surface, and the first detection electrode and the heating element form a detection circuit.

3. The atomizer assembly according to claim 1, characterized in that: The detection electrode includes a first detection electrode and a second detection electrode, wherein the first detection electrode is arranged on the liquid absorption surface, and the second detection electrode is arranged on the side surface.

4. The atomizer assembly according to claim 1, characterized in that: The detection electrode includes a first detection electrode and a second detection electrode, and the first detection electrode and the second detection electrode are both located on the liquid absorption surface.

5. The atomizer assembly according to claim 1, characterized in that: The detection electrode includes a first detection electrode and a second detection electrode, and the first detection electrode and the second detection electrode are both located on the side surface.

6. The atomizer assembly according to claim 1, characterized in that: The straight-line distance between the detection electrode and the heating element is greater than or equal to 0.2 mm.

7. The atomizer assembly according to claim 1, characterized in that: The atomization assembly further includes a temperature sensor, and the temperature sensor is disposed on the porous body.

8. The atomizer assembly according to claim 1, characterized in that: The cross section of the detection electrode is in the shape of a long strip or a circle.

9. The atomizer assembly according to claim 1, characterized in that: The thickness of the detection electrode is 0.01 mm to 1 mm.

10. An electronic atomization device, characterized in that: It comprises a housing, a circuit board assembly and an atomizing assembly as claimed in any one of claims 1 to 9, A housing, wherein the housing defines an atomization chamber and a liquid storage chamber, wherein the liquid storage chamber is used to store a liquid matrix; The liquid storage chamber is in fluid communication with the liquid suction surface, the atomization chamber is in gas communication with the atomization surface, and the atomization assembly is disposed between the atomization chamber and the liquid storage chamber; The circuit board assembly is arranged on the housing. A detection circuit is arranged on the circuit board assembly. The detection circuit is electrically connected to the detection electrode and is used to detect the resistance of the porous body.

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