Electronic atomization device and atomization assembly for electronic atomization device

Abstract

The application provides an electronic atomization device and an atomization assembly for the electronic atomization device. The electronic atomization device comprises a liquid storage cavity for storing a liquid substrate; a porous element in fluid communication with the liquid storage cavity for absorbing the liquid substrate; and a heating element formed on or combined with the porous element for heating at least part of the liquid substrate in the porous element to generate an aerosol. The heating element comprises a first electrical connection portion and a second electrical connection portion arranged at intervals along the length direction, and a resistive heating track extending between the first electrical connection portion and the second electrical connection portion. The resistive heating track has a variable track width. The electronic atomization device is advantageous in that the variable track width is used to adjust the temperature field distribution on the resistive heating track.

Description

Technical Field

[0001] This application relates to the field of electronic atomization technology, and in particular to an electronic atomization device and an atomization component for the electronic atomization device. Background Technology

[0002] Tobacco products (such as cigarettes, cigars, etc.) produce tobacco smoke by burning tobacco during use. Efforts are being made to replace these tobacco-burning products by creating products that release compounds without combustion.

[0003] Examples of such products are heating devices that release compounds by heating rather than burning materials. For example, the material could be tobacco or other non-tobacco products, which may or may not contain nicotine. As another example, aerosol-providing articles exist, such as so-called electronic atomizing devices. These devices typically contain a liquid that is heated to vaporize, thereby producing an inhalable aerosol. The liquid may contain nicotine and / or flavorings and / or aerosol-generating substances (e.g., glycerin). In the electronic atomizing device proposed by the applicant in Chinese patent CN114868967A, the liquid is heated to generate an aerosol by printing two continuous Ω-shaped heating tracks on a porous element; during use, the high heat of the heating tracks is concentrated in the central region, forming heat accumulation. Utility Model Content

[0004] One embodiment of this application provides an electronic atomizing device, comprising: A liquid storage chamber is used to store a liquid matrix; A porous element is in fluid communication with the liquid storage cavity to absorb the liquid matrix; A heating element, formed or incorporated on the porous element, is used to heat at least a portion of the liquid matrix within the porous element to generate an aerosol; the heating element includes a first electrical connection and a second electrical connection arranged at intervals along its length, and a resistance heating trajectory extending between the first electrical connection and the second electrical connection; the resistance heating trajectory has a varying trajectory width.

[0005] In some embodiments, the resistance heating trajectory includes a first segment, a second segment, and a third segment that meander continuously from the first electrical connection to the second electrical connection; the trajectory width of the first segment and / or the trajectory width of the third segment is smaller than the trajectory width of the second segment.

[0006] In some embodiments, the trajectory width of the second segment is constant; And / or, the trajectory width of the first segment gradually increases in the direction away from the first electrical connection portion; And / or, the trajectory width of the third segment gradually decreases along the direction close to the second electrical connection.

[0007] In some embodiments, the resistance heating trajectory includes a first segment and a second segment that meander continuously from the first electrical connection to the second electrical connection; The trajectory width of the first segment gradually increases in the direction away from the first electrical connection; the trajectory width of the second segment gradually decreases in the direction closer to the second electrical connection.

[0008] In some embodiments, the resistance heating trajectory is axisymmetric.

[0009] In some embodiments, the resistance heating trajectory has a maximum trajectory width at the axisymmetric center.

[0010] In some embodiments, the resistance heating trajectory has a minimum trajectory width at the connection point with the first electrical connection and / or the second electrical connection.

[0011] In some embodiments, the first segment has a first span in the length direction of the heating element, the second segment has a second span in the length direction of the heating element, and the third segment has a third span in the length direction of the heating element; The second span is greater than one or both of the first span and the third span.

[0012] In some embodiments, the trajectory extension length of the second segment is greater than the trajectory extension length of the first segment and / or the trajectory extension length of the third segment.

[0013] In some embodiments, the thickness of the resistance heating trajectory is constant; And / or, the thickness of the resistance heating trajectory is between 0.05 mm and 0.4 mm.

[0014] In some embodiments, the heating element has an initial resistance value between 0.8 ohms and 2.0 ohms at room temperature.

[0015] In some embodiments, the resistance heating trajectory comprises at least two continuously repeating trajectory units, the trajectory units being substantially Ω-shaped or omega-shaped.

[0016] In some embodiments, the viscosity of the liquid matrix at 25°C is greater than 1000 mPa·s.

[0017] In some embodiments, the heating element comprises only one resistive heating trajectory that extends continuously and meanderingly between the first electrical connection and the second electrical connection.

[0018] Another embodiment of this application provides an atomizing component for an electronic atomizing device, comprising: Porous body element, and heating element formed or combined on said porous body element; The heating element includes a first electrical connection portion and a second electrical connection portion arranged at intervals along the length direction, and a resistance heating trajectory extending between the first electrical connection portion and the second electrical connection portion; the resistance heating trajectory has a varying trajectory width.

[0019] Another embodiment of this application also proposes an electronic atomizing device, comprising: A liquid storage chamber is used to store a liquid matrix; A porous element is in fluid communication with the liquid storage cavity to absorb the liquid matrix; A heating element, formed or incorporated on the porous element, is used to heat at least a portion of a liquid matrix within the porous element to generate an aerosol; the heating element includes a first electrical connection and a second electrical connection arranged at intervals along its length, and a resistance heating trajectory extending between the first electrical connection and the second electrical connection; the resistance heating trajectory has a varying thickness.

[0020] Another embodiment of this application also proposes an electronic atomizing device, comprising: A liquid storage chamber is used to store a liquid matrix; A porous element is in fluid communication with the liquid storage cavity to absorb the liquid matrix; A heating element, formed or incorporated on the porous element, is used to heat at least a portion of the liquid matrix within the porous element to generate an aerosol; the heating element includes a first electrical connection and a second electrical connection arranged at intervals along its length, and a resistance heating trajectory extending between the first electrical connection and the second electrical connection; the resistance value per unit length of the resistance heating trajectory is variable.

[0021] The above electronic atomizing device is advantageous in that it uses varying track width to adjust the temperature field distribution on the resistive heating track. Attached Figure Description

[0022] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0023] Figure 1 This is a schematic diagram of an electronic atomizing device provided in one embodiment; Figure 2 yes Figure 1A schematic diagram of the structure of an embodiment of a central atomizer; Figure 3 yes Figure 2 Another structural diagram of the atomizing component; Figure 4 yes Figure 3 Another structural diagram of the atomizing component; Figure 5 This is a schematic diagram of the atomizing component from one perspective of yet another embodiment; Figure 6 This is a schematic diagram of the atomizing component from one perspective of yet another embodiment; Figure 7 This is a scaled-down temperature field distribution diagram of an atomizing component during operation. Figure 8 yes Figure 4 Temperature field distribution diagram of the atomizing component during operation; Figure 9 yes Figure 5 Temperature field distribution diagram of the atomizing component during operation; Figure 10 This is a comparative example of the carbon buildup state of an atomizing component after heating 0.5 mL of liquid matrix; Figure 11 yes Figure 5 The carbon buildup state of the atomizing component in the illustrated embodiment after heating 0.5 mL of liquid matrix; Figure 12 This is a statistical comparison chart of the TPM values ​​of a comparative atomizing component and an example atomizing component when heating 0.5 mL of liquid matrix. Detailed Implementation

[0024] To facilitate understanding of this application, a more detailed description of this application will be provided below in conjunction with the accompanying drawings and specific embodiments.

[0025] One embodiment of this application provides an electronic atomizing device, which can be found in [reference needed]. Figure 1 As shown, it includes an atomizer 100 that stores a liquid matrix and atomizes it to generate an aerosol, and a power supply mechanism 200 that supplies power to the atomizer 100. Figure 1In the illustrated embodiment, the atomizer 100 and power supply mechanism 200 of the electronic atomizing device are separable or detachable relative to each other; an electronic atomizing device having such a separable or detachable atomizer 100 and power supply mechanism 200 is, for example, a so-called "refillable" electronic atomizing device. Alternatively, in some further variations, the atomizer 100 and power supply mechanism 200 of the electronic atomizing device are securely enclosed and fixed by the housing components of the electronic atomizing device, thereby preventing the atomizer 100 and power supply mechanism 200 from being detachable relative to each other; an electronic atomizing device having such a non-detachable atomizer 100 and power supply mechanism 200 relative to each other is, for example, a so-called "integrated or disposable" electronic atomizing device.

[0026] In an alternative embodiment, for example Figure 1 As shown, the power supply mechanism 200 includes a receiving cavity 270 disposed at one end along the length direction for receiving and accommodating at least a portion of the atomizer 100, and an electrical contact 230 at least partially exposed on the surface of the receiving cavity 270 for supplying power to the atomizer 100 when at least a portion of the atomizer 100 is received and accommodated within the power supply mechanism 200.

[0027] according to Figure 1 In the exemplary embodiment shown, an electrical contact 21 is provided at one end of the atomizer 100 along the length direction, so that when at least a portion of the atomizer 100 is received in the receiving cavity 270, the electrical contact 21 forms an electrical conductivity by contacting and abutting against the electrical contact 230.

[0028] exist Figure 1 In the exemplary embodiment shown, a sealing member 260 is provided inside the power supply mechanism 200, and the sealing member 260 divides at least a portion of the internal space of the power supply mechanism 200 to form the receiving cavity 270. Figure 1 In the exemplary embodiment shown, the seal 260 is configured to extend along the cross-sectional direction of the power supply mechanism 200, and is preferably made of a flexible material, thereby preventing the liquid matrix that seeps from the atomizer 100 into the receiving cavity 270 from flowing into components such as the controller 220 and sensor 250 inside the power supply mechanism 200.

[0029] exist Figure 1 In the exemplary embodiment shown, the power supply mechanism 200 further includes a battery cell 210 for power supply located at the other end of its length away from the receiving cavity 270; and a controller 220 disposed between the battery cell 210 and the receiving cavity 270, the controller 220 being operable to guide current between the battery cell 210 and the electrical contact 230. In this embodiment, the battery cell 210 has an output voltage of 3.7 volts to 4.2 volts.

[0030] In an embodiment, the power supply mechanism 200 includes a sensor 250 for sensing the suction airflow generated when the atomizer 100 is inhaled, and then the controller 220 controls the battery cell 210 to output current to the atomizer 100 according to the detection signal of the sensor 250.

[0031] exist Figure 1 In the exemplary embodiment shown, the power supply mechanism 200 is provided with a charging interface 240 at the other end away from the receiving cavity 270 for charging the battery cell 210.

[0032] Figure 2 It shows Figure 1 A schematic diagram of one embodiment of the atomizer 100 includes: The housing 10 defines at least a portion of the outer surface of the atomizer 100. According to Figure 2 As shown, the outer casing 10 is generally longitudinally elongated cylindrical in shape, with a hollow interior for accommodating essential functional components for storing and atomizing the liquid matrix; the outer casing 10 has a proximal end 110 and a distal end 120 that are opposite to each other along its length. The proximal end 110 is configured as the end where the user inhales the aerosol, and has an outlet 111 for the user to inhale; while the distal end 120 is configured as the end that is connected to the power supply mechanism 200.

[0033] See Figure 2 As shown, the housing 10 has a liquid storage chamber 12 for storing a liquid matrix, and an atomizing assembly for drawing the liquid matrix from the liquid storage chamber 12 and heating and atomizing the liquid matrix. Among these, in... Figure 2 In the schematic diagram shown, the outer shell 10 is provided with an aerosol transmission tube 11 arranged along the axial direction. The space between the aerosol transmission tube 11 and the inner wall of the outer shell 10 forms a liquid storage chamber 12 for storing liquid matrix. The aerosol transmission tube 11 extends to or terminates at the air outlet 111, thereby transmitting the generated aerosol to the air outlet 111 for inhalation.

[0034] In some typical embodiments, the liquid matrix typically comprises PG (propylene glycol) and VG (glycerol) in a volume ratio of 1:1, has a viscosity of 100–200 mPa·s at room temperature (20°C), and a boiling point of approximately 240°C.

[0035] In some other embodiments, the liquid matrix is ​​a high-viscosity liquid matrix of pharmaceutical nature; for example, pharmaceutical liquid matrices may include terpene compounds, thus exhibiting relatively high viscosity. The viscosity of these pharmaceutical liquid matrices varies with temperature; for example, pharmaceutical liquid matrices of terpene compounds have a viscosity of approximately 179,000 mPa·s near room temperature (290 K), which decreases to 1070 mPa·s when heated to 320 K. For example, the table below provides a comparison of the viscosity of various conventional PG / VG liquid matrices and pharmaceutical liquid matrices at different heating temperatures:

[0036] Typically, the viscosity of the above-mentioned pharmaceutical liquid matrix at 25°C (room temperature) is greater than, or even much greater than, the viscosity of glycerol (VG) liquid matrix, which is 855 mPa·s. In more embodiments, the viscosity of the pharmaceutical liquid matrix at 25°C (room temperature) is greater than 1000 mPa·s; or even greater than 1200 mPa·s.

[0037] In some alternative embodiments, the aerosol delivery tube 11 and the housing 10 are integrally molded from a moldable material, thereby defining a liquid reservoir 12 between the aerosol delivery tube 11 and the housing 10, and the liquid reservoir 12 has an opening that opens toward the distal end 120.

[0038] See Figures 2 to 3 As shown, the atomizer 100 further includes an atomizing component for drawing and atomizing the liquid matrix from the liquid reservoir 12 to generate an aerosol; specifically, the atomizing component includes: The rigid porous element 30 is generally configured to be plate-shaped, sheet-shaped, or block-shaped; and the porous element 30 has a first side 310 and a second side 320 facing away from each other; the first side 310 is arranged toward the liquid storage cavity 12 and is in fluid communication with the liquid storage cavity 12. Heating element 40, attached to the surface of the second side 320 of porous element 30, is used to heat at least a portion of the liquid matrix transferred by porous element 30 to generate an aerosol.

[0039] See Figure 2 In the embodiment shown, the atomizer 100 further includes: The rigid support 20 is made of, for example, organic polymer plastic or ceramic; the support 20 is used to house and support the atomizing assembly, especially to house the porous element 30; The sealing element 50 is made of a flexible material, such as silicone or a thermoplastic elastomer; the sealing element 50 is at least partially located within the support 20 and partially surrounds or encloses the porous element 30; the sealing element 50 is used to provide a seal between the support 20 and the porous element 30.

[0040] See Figures 2 to 3 As shown, the porous element 30 is configured to extend longitudinally perpendicular to the atomizer 100; the first side 310 and the second side 320 of the porous element 30 are arranged opposite to each other along the longitudinal direction of the atomizer 100. The first side 310 of the porous element 30 is arranged towards the liquid reservoir 12 and is in fluid communication with the liquid reservoir 12, for example in... Figure 2 The first side 310, indicated by the middle arrow R1, is in fluid communication with the liquid storage chamber 12 through the liquid channel 13 defined within the support 20 to receive the liquid matrix; the surface of the second side 320 of the porous element 30 is configured as an atomizing surface, and the heating element 40 is attached to the surface of the atomizing surface / the second side 320 of the porous element 30.

[0041] according to Figure 2 As shown, an atomizing chamber 340 is defined between the second side 320 of the porous element 30 and the distal end 120 of the housing 10. This atomizing chamber 340 is located on the side of the porous element 30 opposite to the liquid reservoir 12; the atomizing chamber 340 provides space for releasing aerosol from the atomizing surface of the porous element 30. At least a portion of the heating element 40 is exposed in the atomizing chamber 340. During suction, external air enters the atomizing chamber 340 through the air inlet 22 of the distal end 120, carrying the aerosol within the atomizing chamber 340 to the aerosol delivery tube 11, and is then drawn in by the user at the air outlet 111. Figure 2 As indicated by the middle arrow R2.

[0042] Alternatively, in some variations, the atomizer 100 includes a transverse direction perpendicular to the longitudinal direction; for example, the transverse direction can be either the width direction or the thickness direction of the atomizer 100. Alternatively, for a cylindrical or similar polygonal atomizer 100, the transverse direction can be radial. In an embodiment, the porous element 30 is configured to extend longitudinally along the atomizer 100; the first side 310 and the second side 320 of the porous element 30 are arranged opposite to each other along the transverse direction of the atomizer 100. Thus, the surfaces of the first side 310 and / or the second side 320 of the porous element 30 both extend longitudinally along the atomizer 100; for example, a so-called "side-atomizing" atomizing assembly.

[0043] In some embodiments, the porous element 30 is a flat sheet or plate; according to Figures 2 to 3As shown, the length of the porous element 30 is approximately between 6 mm and 15 mm; the width of the porous element 30 is approximately between 3 mm and 6 mm; and the thickness of the porous element 30 is approximately between 0.8 mm and 3 mm. Furthermore, the surface of the first side 310 and / or the surface / atomizing surface of the second side 320 are flat, extended planes. Alternatively, in some variations, the porous element 30 is a curved, arcuate sheet; and the surface of the first side 310 and / or the surface / atomizing surface of the second side 320 are curved surfaces.

[0044] exist Figures 2 to 3 As shown, the porous element 30 is plate-shaped or sheet-shaped, with two surfaces facing away from each other in the thickness direction serving as the surface of the first side 310 and the surface of the second side 320, respectively. Alternatively, in more embodiments, the porous element 30 can have various shapes, such as arched, cup-shaped, trough-shaped, etc. For example, the applicant provides details regarding the shape of an arched porous element with internal channels, and the configuration of the porous element for absorbing and atomizing the liquid matrix, in Chinese Patent Application Publication No. CN215684777U, the full text of which is incorporated herein by reference. Alternatively, in some further variations, the porous element 30 can be generally circular, elliptical, polygonal, or other shapes with side notches. The porous element 30 may include at least one of porous glass, porous ceramic, porous carbon, or porous metal.

[0045] In some embodiments, the porous element 30 has a porosity of approximately 40% to 80%. In some embodiments, the pore size of the micropores within the porous element 30 is between 1 μm and 100 μm. In some embodiments, the average pore size of the micropores within the porous element 30 is between 5 μm and 80 μm. For example, in some specific embodiments, the average pore size of the micropores within the porous element 30 is approximately 30 μm.

[0046] In some embodiments, the micropores within the porous element 30 are presented in a disordered manner. For example, in some embodiments, the disordered micropores within the porous element 30 are formed by sintering with a pore-forming agent, for instance, by mixing the raw material powder for preparing the porous element 30, such as ceramic powder, with a pore-forming agent, followed by molding and sintering. Furthermore, the micropores within the porous element 30 are defined by the decomposition and volatilization of the pore-forming agent during sintering. The material of the porous element 30 includes at least one of alumina, zirconium oxide, magnesium oxide, calcium oxide, silicon dioxide, cordierite, etc.

[0047] In some embodiments, the micropores within the porous element 30 are formed by drilling holes in a dense precursor along a predetermined direction, such as by mechanical drilling or laser drilling. In other embodiments, the micropores within the porous element 30 are arranged in an ordered manner according to a predetermined direction. In one embodiment, a plurality of ordered micropores are arranged in an array within the porous element 30, thereby giving the porous element 30 a honeycomb shape; in another embodiment, the plurality of ordered micropores can transfer a liquid matrix from the surface of the first side 310 to the surface of the second side 320 at a predetermined rate.

[0048] In some embodiments, the micropores within the porous element 30 are cross-linked network pores. For example, in some embodiments, during the preparation of the porous element 30, the raw materials for preparing the porous element 30 can be prepared into a green body, such as a ceramic green body, according to a desired shape, and a plurality of spaced-apart scorchable fiber webs can be embedded within the green body; during the sintering of the green body to form the porous element 30, the scorchable fiber webs are thermally decomposed or volatilized, thereby forming the cross-linked network micropores of the porous element 30 in the space occupied by the fiber webs. In embodiments, each cross-linked network micropore within the porous element 30 is substantially planar; specifically, in embodiments, the cross-linked network micropores may include a plurality of first-direction pores and a plurality of second-direction pores perpendicular or intersecting each other in the plane; at least one of the plurality of first-direction pores and the plurality of second-direction pores extends from a first side 310 to a second side 320 to transfer the liquid matrix from the first side 310 to the second side 320. In embodiments, the plurality or plurality of cross-linked network micropores within the porous element 30 are spaced-apart.

[0049] In some embodiments, the heating element 40 is bonded to the surface of the second side 320 of the porous element 30 by means of printing, deposition, sintering, or physical assembly such as surface mounting. In other embodiments, the heating element 40 is in the form of patterned conductive traces formed on the surface of the second side 320. Alternatively, in some specific embodiments, the heating element 40 is a conductive trace formed on the surface of the second side 320. Furthermore, the heating element 40 is a planar heating element.

[0050] In some embodiments, the heating element 40 is made of a composite material of a metal, metal alloy, graphite, carbon, conductive ceramic, or other ceramic and metal materials with appropriate resistance. Suitable metal or alloy materials include at least one of nickel, cobalt, zirconium, titanium, nickel alloys, cobalt alloys, zirconium alloys, titanium alloys, nickel-chromium alloys, nickel-iron alloys, iron-chromium alloys, iron-chromium-aluminum alloys, iron-manganese-aluminum based alloys, or stainless steel.

[0051] exist Figures 2 to 4In the illustrated embodiment, the heating element 40 extends approximately 8 mm to 12 mm along the length of the surface of the second side 320. The surface of the porous element 30 / second side 320 has a first end and a second end that are opposite to each other along the length direction; the heating element 40 has a first distance from the first end and / or the second end; for example, the first distance between the heating element 40 and the first end and / or the second end is approximately 0.5 mm to 1 mm.

[0052] exist Figures 2 to 4 In the illustrated embodiment, the heating element 40 extends approximately 2 mm to 5 mm along the width direction of the surface of the second side 320. The heating element 40 and the edge of the second side 320 in the width direction have a second distance; for example, the second distance between the heating element 40 and the edge of the second side 320 in the width direction is approximately 1 mm to 2 mm.

[0053] exist Figures 2 to 4 In the illustrated embodiment, the heating element 40 includes a first electrical connection 41 and a second electrical connection 42 spaced apart along its length, and a resistance heating trajectory 43 extending between the first electrical connection 41 and the second electrical connection 42. The resistance heating trajectory 43 meanders between the first electrical connection 41 and the second electrical connection 42. The first electrical connection 41 and the second electrical connection 42 are used to guide current on the resistance heating trajectory 43. After assembly, the electrical contact 21 extends from the distal end 120 into the atomizer 100 and abuts against the first electrical connection 41 and the second electrical connection 42 to supply power to the heating element 40. Figures 2 to 4 In the illustrated embodiment, the first electrical connection portion 41 and the second electrical connection portion 42 define the electrical connection region of the heating element 40. Additionally, the resistance heating trajectory 43 defines the heating region of the heating element 40.

[0054] In some embodiments, the resistance heating trajectory 43 includes one or more patterned trajectory units. For example, in Figures 3 to 4 The resistance heating trajectory 43 shown includes at least two or more trajectory units that are presented continuously and repeatedly. The trajectory units are generally Ω or omega-shaped. Alternatively, in... Figure 3 and Figure 4 In one embodiment, the resistance heating trajectory 43 comprises two trajectory units arranged continuously along its length, which are essentially in the shape of an "Ω" or "Omega". Alternatively, in some other variations, the resistance heating trajectory 43 may also comprise more repeating trajectory units, for example, the resistance heating trajectory 43 may also comprise three, four or more "Ω" or "Omega" shaped trajectory units. These repeating trajectory units are connected in series, one after the other.

[0055] In some embodiments, the thickness of the heating element 40 / resistive heating track 43 is constant; the thickness of the heating element 40 / resistive heating track 43 is approximately between 0.05 mm and 0.4 mm.

[0056] In some embodiments, the heating element 40 has only one resistance heating trajectory 43 that extends continuously and meanderingly from the first electrical connection portion 41 and the second electrical connection portion 42, without having at least two or more resistance heating trajectories 43 connected in parallel between the first electrical connection portion 41 and the second electrical connection portion 42.

[0057] In some embodiments, the resistance heating track 43 has a track width of approximately 0.2 mm to 0.5 mm. This allows the initial resistance value of the heating element 40 at room temperature to be between 0.8 ohms and 2.0 ohms, enabling it to operate at a constant power of 5 W to 10 W with a supply voltage of 3.7 volts to 4.2 volts from the battery cell 210. More specifically, for example, the initial resistance value of the heating element 40 at room temperature is designed to be 1.2 ohms, enabling it to operate at a constant power of 6.5 W to 7 W with a supply voltage of 3.7 volts to 4.2 volts.

[0058] In this embodiment, the width of the resistance heating trajectory 43 is variable rather than constant. In this embodiment, by giving the resistance heating trajectory 43 a variable width, the temperature field of the resistance heating trajectory 43 during heating can be adjusted or changed.

[0059] according to Figure 4 As shown, the resistance heating trajectory 43 includes a first segment 431, a second segment 432, and a third segment 433 that extend continuously and meanderingly from the first electrical connection portion 41 to the second electrical connection portion 42 along the length direction of the heating element 40. The first segment 431 has a first span L1 along the length direction of the heating element 40, the second segment 432 has a second span L2 along the length direction of the heating element 40, and the third segment 433 has a third span L3 along the length direction of the heating element 40.

[0060] In some embodiments, the second span L2 is greater than one or both of the first span L1 and the third span L3. In some embodiments, the total span of the resistance heating trajectory 43 is approximately 3.5 mm to 10 mm; the first span L1 and / or the third span L3 may be between 0.85 mm and 2.5 mm; and the second span L2 may be between 1.7 mm and 5.0 mm.

[0061] exist Figure 3 and Figure 4In the illustrated embodiment, the trajectory extension length of the first segment 431 and / or the third segment 433 is less than the trajectory extension length of the second segment 432. For example, the second segment 432 has a trajectory extension length of the entire "Ω or Omega" shape, while the first segment 431 and / or the third segment 433 has a trajectory extension length of 1 / 2 "Ω or Omega" shape.

[0062] exist Figure 3 and Figure 4 In the embodiment shown, the trajectory width W11 of the first segment 431 and / or the trajectory width W13 of the third segment 433 are smaller than the trajectory width W12 of the second segment 432.

[0063] exist Figure 3 and Figure 4 In the embodiment shown, the trajectory width W12 of the second segment 432 is substantially constant; for example, the trajectory width W12 of the second segment 432 is 0.42 mm.

[0064] exist Figure 3 and Figure 4 In the illustrated embodiment, the trajectory width W11 of the first segment 431 and / or the trajectory width W13 of the third segment 433 are gradually varied. For example, the trajectory width W11 of the first segment 431 gradually increases from 0.3 mm to 0.42 mm in the direction away from the first electrical connection 41; the trajectory width W13 of the third segment 433 gradually decreases from 0.42 mm to 0.3 mm in the direction toward the second electrical connection 42.

[0065] In the embodiment, by gradually reducing the trajectory width W11 of the first segment 431 and the trajectory width W13 of the third segment 433, the resistance ratio of the second segment 432 on the entire resistance heating trajectory 43 is relatively reduced, so that more of the power of the resistance heating trajectory 43 during heating is transferred from the second segment 432 to the first segment 431 and the third segment 433, thereby making the temperature field on the entire resistance heating trajectory 43 more uniform.

[0066] Alternatively, in some embodiments, the resistance heating trajectory 43 has a varying thickness / print thickness, thereby adjusting the temperature field distribution of the resistance heating trajectory 43. For example, in some embodiments, the thickness of the first segment 431 and / or the third segment 433 is gradually varying; the thickness of the second segment 432 is constant. More specifically, for example, the thickness of the first segment 431 gradually increases in the direction away from the first electrical connection 41; the thickness of the third segment 433 gradually decreases in the direction towards the second electrical connection 42. Then, the resistance value per unit length of the first segment 431 and / or the third segment 433 is greater than the resistance value per unit length of the second segment 432; thereby allowing the first segment 431 and / or the third segment 433 to obtain a larger power distribution ratio to form a more uniform temperature field distribution on the resistance heating trajectory 43.

[0067] or Figure 5 A schematic diagram of an atomizing assembly according to yet another embodiment is shown, in which the heating element 40a of the atomizing assembly includes: A resistance heating trajectory 43a extends meandering between the first electrical connection 41a and the second electrical connection 42a; the resistance heating trajectory 43a includes at least two or more trajectory units that are repeatedly presented. Figure 5 As shown, the resistance heating trajectory 43a may include a first segment 431a and a second segment 432a that continuously meander from the first electrical connection 41a to the second electrical connection 42a. The first segment 431a and the second segment 432a are axially symmetrical.

[0068] exist Figure 5 In the illustrated embodiment, the trajectory width W21a of the first segment 431a gradually increases; specifically, the trajectory width W21a of the first segment 431a gradually increases from 0.29 mm to 0.41 mm in the direction away from the first electrical connection portion 41a. The trajectory width W22a of the second segment 432a gradually decreases; specifically, the trajectory width W22a of the second segment 432a gradually decreases from 0.41 mm to 0.29 mm in the direction toward the second electrical connection portion 42a.

[0069] exist Figure 5 In the illustrated embodiment, the resistance heating trajectory 43a is axisymmetric and has its maximum trajectory width at the center of axisymmetry; for example, in Figure 5 As shown, the maximum width of the resistance heating trajectory 43a at the center of symmetry is 0.41 mm. Along the direction from the first electrical connection 41a to the second electrical connection 42a, the width of the resistance heating trajectory 43a first gradually increases, and then gradually decreases. The resistance heating trajectory 43a has its minimum width at the connection points with the first electrical connection 41a and / or the second electrical connection 42a; for example, at... Figure 5As shown, the minimum trajectory width at the connection point between the resistance heating trajectory 43a and the first electrical connection portion 41a and / or the second electrical connection portion 42a is 0.29 mm.

[0070] Alternatively, in some other embodiments, the thickness of the first segment 431a gradually increases in the direction away from the first electrical connection 41a; and the thickness of the second segment 432a gradually decreases in the direction towards the second electrical connection 42a. This causes the resistance value per unit length on the resistance heating trajectory 43a to first gradually increase and then gradually decrease.

[0071] or Figure 6 A schematic diagram of an atomizing assembly according to yet another embodiment is shown, in which the heating element 40b of the atomizing assembly includes: A resistance heating trajectory 43b extends between the first electrical connection 41b and the second electrical connection 42b. The resistance heating trajectory 43b meanders and meanders between the first electrical connection 41b and the second electrical connection 42b. The resistance heating trajectory 43b comprises two trajectory units that are basically "Ω" shaped and continuously arranged along the length direction.

[0072] exist Figure 6 In the illustrated embodiment, the resistance heating trajectory 43b includes a continuously meandering first segment 431b, a second segment 432b, and a third segment 433b; in Figure 6 In the illustrated embodiment, the trajectory width W31 of the first segment 431b, the trajectory width W32 of the second segment 432b, and the trajectory width W33 of the third segment 433b are all constant. Furthermore, the trajectory width W31 of the first segment 431b and / or the trajectory width W33 of the third segment 433b is smaller than the trajectory width W32 of the second segment 432b. For example, in some optional embodiments, the trajectory width W32 of the second segment 432b is 0.41 mm, and the trajectory width W31 of the first segment 431b and / or the trajectory width W33 of the third segment 433b is 0.35 mm.

[0073] In the progress verification, implementation examples and comparative examples with different trace widths were designed with the same initial resistance value (1.2 ohms) for performance testing. Figure 7 A schematic diagram of the temperature field of a comparative atomizing component heated to 318°C using a heating element with a constant trajectory width of 0.36 mm is shown. Figure 8 It shows Figure 4 A schematic diagram of the temperature field when the heating element 40 of the atomizing assembly in an embodiment (referred to as Embodiment 1) is heated to 318°C for atomization; Figure 9 It shows Figure 5 A schematic diagram of the temperature field during atomization of the atomizing assembly in embodiment 2 (referred to as Embodiment 2) when the heating element 40a is heated to 318°C. Figures 7 to 9The comparison results clearly show that the temperature field of the heating element 40 in Example 1 and the heating element 40a in Example 2 is more uniform than that of the comparative example.

[0074] Further on Figure 7 The heating element shown in the comparative example Figure 8 The heating element 40 of Embodiment 1 shown is Figure 9 The statistical results of the total area of ​​the resistance heating trajectory of the heating element 40a in Example 2 and the trajectory area within the temperature range of 305-318°C are shown in the following table:

[0075] According to the statistical results, the proportion of the trajectory area of ​​the heating element 40 in the 305-318°C temperature range in Example 1 to the total area of ​​the resistance heating trajectory 43 increased from 40.1% to 86.8% compared to the prior art 1; the proportion of the trajectory area of ​​the heating element 40a in the 305-318°C temperature range in Example 2 to the total area of ​​the resistance heating trajectory 43a increased from 40.1% to 86.2% compared to the prior art 1.

[0076] Further Figure 7 The comparative atomizing components and Figure 8 In Example 2, the atomizing component was installed in the atomizer 100, and a suction test was performed on 0.5 mL of a medical drug liquid matrix containing 5% terpene compounds for comparison. The suction test was performed in a cycle of 3 seconds of suction followed by a 28-second pause. During each suction, the atomizing component was powered at a constant power of 6.5 W until the 0.5 mL liquid matrix was completely consumed.

[0077] Figure 10 The diagram shows the surface carbon state of a comparative atomizing component after consuming 0.5 mL of a medical drug liquid matrix. Figure 11 The diagram shows the carbon buildup on the surface of the atomizing assembly of Example 2 after consuming 0.5 mL of a medical drug-like liquid matrix. Clearly, the heating element 40a of the atomizing assembly of Example 2 has a more uniform temperature field, resulting in essentially uniform atomization of flavoring components, additives, or sugar impurities in the liquid matrix, and a relatively lower degree of carbon buildup. Figure 10 The heating element of the atomizing assembly shown in the comparative example atomizing component atomizes the flavoring components, additives, or sugar impurities in the liquid matrix unevenly, leading to condensation and dry distillation, resulting in relatively serious carbon deposits.

[0078] Figure 12 The comparison shows the number of puffs and the total vapor production per puff (TPM) of the atomizing assembly in the comparative example and the atomizing assembly in Example 2 after atomizing 0.5 mL of liquid matrix. And according to... Figure 12The comparative statistical results show that the average vapor production per puff (TPM) during the atomization process in Example 2 was increased by approximately 90% compared to the average vapor production per puff (TPM) during the atomization process in the comparative example. Figure 12 In the statistical comparison, the atomizing component of Example 2 has a larger TPM (total volume per puff), thus atomizing 0.5 mL of liquid matrix more quickly, for example, requiring a total of 120 puffs to atomize 0.5 mL of liquid matrix; while the atomizing component of the comparative example has a relatively smaller TPM, thus atomizing 0.5 mL of liquid matrix more slowly, for example, requiring a total of 160 puffs to atomize 0.5 mL of liquid matrix.

[0079] It should be noted that the preferred embodiments of this application are given in the specification and accompanying drawings, but are not limited to the embodiments described in this specification. Furthermore, those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. An electronic atomizing device, characterized in that, include: A liquid storage chamber is used to store a liquid matrix; A porous element is in fluid communication with the liquid storage cavity to absorb the liquid matrix; A heating element, formed or incorporated on the porous element, is used to heat at least a portion of the liquid matrix within the porous element to generate an aerosol; the heating element includes a first electrical connection and a second electrical connection arranged at intervals along its length, and a resistance heating trajectory extending between the first electrical connection and the second electrical connection; the resistance heating trajectory has a varying trajectory width.

2. The electronic atomizing device as described in claim 1, characterized in that, The resistance heating trajectory includes a first segment, a second segment, and a third segment that meander continuously from the first electrical connection to the second electrical connection; the trajectory width of the first segment and / or the trajectory width of the third segment is smaller than the trajectory width of the second segment.

3. The electronic atomizing device as described in claim 2, characterized in that, The trajectory width of the second segment is constant; And / or, the trajectory width of the first segment gradually increases in the direction away from the first electrical connection portion; And / or, the trajectory width of the third segment gradually decreases along the direction close to the second electrical connection.

4. The electronic atomizing device as described in claim 1, characterized in that, The resistance heating trajectory includes a first segment and a second segment that meander continuously from the first electrical connection to the second electrical connection. The trajectory width of the first segment gradually increases in the direction away from the first electrical connection; the trajectory width of the second segment gradually decreases in the direction closer to the second electrical connection.

5. The electronic atomizing device according to any one of claims 1 to 4, characterized in that, The resistance heating trajectory is axisymmetric.

6. The electronic atomizing device as described in claim 5, characterized in that, The resistance heating trajectory has its maximum trajectory width at the axisymmetric center.

7. The electronic atomizing device according to any one of claims 1 to 4, characterized in that, The resistance heating trajectory has a minimum trajectory width at the connection point with the first electrical connection and / or the second electrical connection.

8. The electronic atomizing device as described in claim 2 or 3, characterized in that, The first section has a first span in the length direction of the heating element, the second section has a second span in the length direction of the heating element, and the third section has a third span in the length direction of the heating element; The second span is greater than one or both of the first span and the third span.

9. The electronic atomizing device as described in claim 2 or 3, characterized in that, The trajectory extension length of the second segment is greater than the trajectory extension length of the first segment and / or the trajectory extension length of the third segment.

10. The electronic atomizing device according to any one of claims 1 to 4, characterized in that, The thickness of the resistance heating trajectory is constant; And / or, the thickness of the resistance heating trajectory is between 0.05 mm and 0.4 mm.

11. The electronic atomizing device according to any one of claims 1 to 4, characterized in that, The initial resistance of the heating element at room temperature is between 0.8 ohms and 2.0 ohms.

12. The electronic atomizing device according to any one of claims 1 to 4, characterized in that, The resistance heating trajectory comprises at least two continuously repeating trajectory units, which are substantially Ω-shaped or omega-shaped.

13. The electronic atomizing device according to any one of claims 1 to 4, characterized in that, The viscosity of the liquid matrix at 25°C is greater than 1000 mPa·s.

14. The electronic atomizing device according to any one of claims 1 to 4, characterized in that, The heating element comprises only one resistive heating trajectory that extends continuously and meanderingly between the first electrical connection and the second electrical connection.

15. An atomizing component for an electronic atomizing device, characterized in that, include: Porous body element, and heating element formed or combined on said porous body element; The heating element includes a first electrical connection portion and a second electrical connection portion arranged at intervals along the length direction, and a resistance heating trajectory extending between the first electrical connection portion and the second electrical connection portion; the resistance heating trajectory has a varying trajectory width.

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