Electronic atomization device and atomization assembly for electronic atomization device

Abstract

The utility model provides an electronic atomization device and an atomization assembly for the electronic atomization device. The electronic atomization device comprises a liquid storage cavity; the porous body absorbs the liquid matrix of the liquid storage cavity and comprises a first side and a second side which are opposite to each other in the width direction; a heating element for heating at least a portion of the liquid substrate of the porous body to generate an aerosol; the heating element includes: a first electrode portion and a second electrode portion spaced apart in a length direction of the porous body; the first heating part is connected between the first electrode part and the second electrode part; the second heating part is connected between the first electrode part and the second electrode part; the first heating part is arranged close to the first side and at least partially protrudes towards the second side; and / or the second heating part is arranged close to the second side and at least partially protrudes towards the first side. According to the electronic atomization device, the first heating part and the second heating part of the heating element are simultaneously heated in parallel, and the total resistance value is lower, so that the electronic atomization device has higher power.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of electronic atomization, and in particular to an electronic atomization device and an atomization component for the electronic atomization device. Background Art

[0002] Smoking articles (eg, cigarettes, cigars, etc.) burn tobacco during use to produce tobacco smoke. People have attempted to replace these tobacco-burning articles by creating products that release compounds without combustion.

[0003] An example of such a product is a heating device that releases a compound by heating rather than burning a material. For example, the material may be tobacco or other non-tobacco products that may or may not contain nicotine. As another example, there are aerosol providing products, such as so-called electronic atomization devices. These electronic atomization devices typically contain a liquid matrix that is heated to vaporize it, thereby producing an inhalable aerosol. The applicant proposed in an earlier Chinese patent CN114073338A that a liquid matrix in a porous body is heated by a resistive heating track in the shape of "Ω" on the porous body to generate an aerosol. Summary of the invention

[0004] An embodiment of the present application provides an electronic atomization device, comprising:

[0005] A liquid storage chamber, used for storing a liquid matrix;

[0006] A porous body, in fluid communication with the liquid storage chamber to absorb the liquid matrix; the porous body comprises a first side and a second side opposite to each other in a width direction;

[0007] A heating element, formed or combined on the porous body, for heating at least a portion of the liquid matrix of the porous body to generate an aerosol; the heating element comprises:

[0008] a first electrode portion and a second electrode portion arranged at intervals along a length direction of the porous body;

[0009] a first heating portion connected between the first electrode portion and the second electrode portion;

[0010] a second heating portion connected between the first electrode portion and the second electrode portion;

[0011] The first heating portion is arranged close to the first side and at least partially protrudes toward the second side; and / or the second heating portion is arranged close to the second side and at least partially protrudes toward the first side.

[0012] In some embodiments, when current is directed through the first electrode portion and the second electrode portion on the heating element, the parallel resistance of the first heating portion and the second heating portion is between 0.4 and 0.8 Ω.

[0013] In some embodiments, it also includes:

[0014] A battery cell having an output voltage of 3.7 to 4.2 V; when the output voltage of the battery cell is provided to the heating element, the operating power of the heating element is between 13 W and 16 W; and during operation, a ratio of the length of the first heating portion and / or the second heating portion to the carried power is between 0.7 and 1.2 mm / W.

[0015] In some embodiments, the heating element is centrosymmetric and non-axisymmetric.

[0016] In some embodiments, the first heating portion and / or the second heating portion are arranged in an Ω shape or an omega shape.

[0017] In some embodiments, the heating element is arranged in a closed ring shape; the surface of the porous body has an exposed aerosol release area surrounded and defined by the heating element for releasing aerosol.

[0018] In some embodiments, the first heating portion and the second heating portion are spaced apart from each other and do not intersect.

[0019] In some embodiments, the heating element is arranged as an electrically conductive track formed or bonded to the porous body.

[0020] In some embodiments, the shortest distance between the first heating portion and the second heating portion is greater than a track width of the first heating portion and / or the second heating portion.

[0021] In some embodiments, the track width of the first heating portion and / or the second heating portion is substantially constant;

[0022] The track width of the first heating portion and / or the second heating portion is between 0.2 and 0.5 mm.

[0023] In some embodiments, in use, the first electrode portion and the second electrode portion define an electrical connection area for powering the heating element, and the first heating portion and the second heating portion define a heating area for heating the liquid substrate by resistive Joule heating; when current is conducted on the heating element through the first electrode portion and the second electrode portion, the parallel resistance of the first heating portion and the second heating portion accounts for at least 60% of the total resistance value of the heating element.

[0024] In some embodiments, the first heating portion and the second heating portion are located away from the center of the surface of the porous body and are symmetrical based on the center.

[0025] In some embodiments, the first heating portion defines a first opening toward the first side;

[0026] And / or, the second heating portion defines a second opening toward the second side.

[0027] In some embodiments, the protruding portion of the first heating portion is closer to the second electrode portion than the protruding portion of the second heating portion, and the protruding portion of the second heating portion is closer to the first electrode portion than the protruding portion of the first heating portion.

[0028] In some embodiments, the protruding portion on the first heating portion and the protruding portion on the second heating portion are staggered along the length direction of the porous body.

[0029] In some embodiments, the first electrode portion comprises:

[0030] a first main body region defining a first electrical connection region;

[0031] a first elongated region extending from the first main body region to the first heating portion and close to the first side; the first heating portion being connected between the first elongated region and the second electrode portion;

[0032] And / or, the second electrode portion comprises:

[0033] a second main body region defining a second electrical connection region;

[0034] The second extension region extends from the second main body region to the second heating portion and is close to the second side; the second heating portion is connected between the second extension region and the first electrode portion.

[0035] In some embodiments, the first elongated region and / or the second elongated region are arranged obliquely.

[0036] In some embodiments, the width dimension of the first elongated region gradually decreases along a direction approaching the first heating portion; and / or the width dimension of the second elongated region gradually decreases along a direction approaching the second heating portion.

[0037] In some embodiments, the outer edge and the inner edge of the first extension region extend straight; and the angle between the outer edge of the first extension region and the length direction of the porous body is smaller than the angle between the inner edge of the first extension region and the length direction of the porous body;

[0038] And / or, the outer edge and the inner edge of the second extension region extend straightly; and the angle between the outer edge of the second extension region and the length direction of the porous body is smaller than the angle between the inner edge of the second extension region and the length direction of the porous body.

[0039] Another embodiment of the present application further provides an electronic atomization device, comprising:

[0040] A liquid storage chamber, used for storing a liquid matrix;

[0041] A porous body is connected to the liquid storage chamber fluid to absorb the liquid matrix; the porous body includes a first side and a second side opposite to each other in the width direction

[0042] A heating element, formed or combined on the porous body, for heating at least a portion of the liquid matrix of the porous body to generate an aerosol; the heating element comprises:

[0043] a first electrode portion and a second electrode portion arranged at intervals along the length direction of the porous body;

[0044] a first heating portion connected between the first electrode portion and the second electrode portion;

[0045] a second heating portion connected between the first electrode portion and the second electrode portion;

[0046] The first heating portion and the second heating portion are arranged in an Ω shape or an omega shape; the first heating portion is close to the first side and at least partially protrudes toward the second side; the second heating portion is arranged close to the second side and at least partially protrudes toward the first side.

[0047] Another embodiment of the present application further provides an atomization assembly for an electronic atomization device, comprising:

[0048] A porous body including a first side and a second side opposite to each other in a width direction;

[0049] A heating element is formed or combined on the porous body; the heating element comprises:

[0050] a first electrode portion and a second electrode portion arranged at intervals along the length direction of the porous body;

[0051] a first heating portion connected between the first electrode portion and the second electrode portion;

[0052] a second heating portion connected between the first electrode portion and the second electrode portion;

[0053] The first heating portion and the second heating portion are arranged in an Ω shape or an omega shape; the first heating portion is close to the first side and at least partially protrudes toward the second side; the second heating portion is arranged close to the second side and at least partially protrudes toward the first side.

[0054] Another embodiment of the present application further provides an electronic atomization device, comprising:

[0055] A liquid storage chamber, used for storing a liquid matrix;

[0056] A porous body, in fluid communication with the liquid storage chamber to absorb the liquid matrix; the porous body comprises a first side and a second side opposite to each other in a width direction;

[0057] A heating element, formed or combined on the porous body, for heating at least a portion of the liquid matrix of the porous body to generate an aerosol; the heating element comprises:

[0058] a first electrode portion and a second electrode portion arranged at intervals along the length direction of the porous body, the first electrode portion having a smaller distance from the first side than the second side, and the second electrode portion having a larger distance from the first side than the second side;

[0059] The first heating part is connected between the first electrode part and the second electrode part and extends in a wave shape; the second heating part is connected between the first electrode part and the second electrode part and extends in a wave shape; the first heating part and the second heating part are arranged at intervals along the width direction of the porous body; the wave crest of the first heating part and the wave crest of the second heating part are aligned or aligned in the width direction of the porous body.

[0060] In the above electronic atomization device, the first heating part and the second heating part of the heating element are heated in parallel at the same time during use, and the total resistance value is lower, thereby having greater power. BRIEF DESCRIPTION OF THE DRAWINGS

[0061] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0062] Figure 1 is a schematic diagram of an electronic atomization device provided by an embodiment;

[0063] Figure 2 yes Figure 1 A schematic diagram of an embodiment of an atomizer;

[0064] Figure 3 yes Figure 2 A schematic diagram of the structure of the atomization component from one perspective;

[0065] Figure 4 yes Figure 3 A schematic diagram of the structure of the atomization component from another perspective;

[0066] Figure 5 yes Figure 3 A schematic diagram of the structure of the atomization component from another perspective;

[0067] Figure 6 is a structural schematic diagram of an atomization assembly of yet another embodiment from one perspective;

[0068] Figure 7 It is a structural schematic diagram of an atomization assembly of another embodiment from one perspective. DETAILED DESCRIPTION

[0069] In order to facilitate the understanding of the present application, the present application is described in more detail below in conjunction with the accompanying drawings and specific implementation methods.

[0070] One embodiment of the present application provides an electronic atomization device, which can be found in Figure 1 As shown, the invention comprises an atomizer 100 for storing a liquid matrix and vaporizing the liquid matrix to generate an aerosol, and a power supply mechanism 200 for supplying power to the atomizer 100 .

[0071] In an alternative embodiment, for example Figure 1 As shown, the power supply mechanism 200 includes a receiving cavity 270 arranged 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 in the power supply mechanism 200.

[0072] according to Figure 1 In the exemplary embodiment shown, an electric contact 21 is provided on the end of the atomizer 100 opposite to the power supply mechanism 200 along the length direction, so that when at least a portion of the atomizer 100 is received in the receiving cavity 270, the electric contact 21 contacts and abuts against the electric contact 230 to form conductivity.

[0073] A sealing member 260 is disposed in the power supply mechanism 200, and the sealing member 260 separates at least a portion of the internal space of the power supply mechanism 200 to form the above receiving cavity 270. Figure 1In the exemplary embodiment shown, the seal 260 is configured to extend along the cross-sectional direction of the power mechanism 200, and is preferably made of a flexible material, thereby preventing the liquid matrix that seeps from the atomizer 100 into the receiving chamber 270 from flowing to the controller 220, sensor 250 and other components inside the power mechanism 200.

[0074] exist Figure 1 In the exemplary embodiment shown, the power supply mechanism 200 also includes a battery cell 210 for supplying power at the other end away from the receiving cavity 270 along the length direction; and a controller 220 arranged between the battery cell 210 and the receiving cavity, which can be operated to guide current between the battery cell 210 and the electrical contact 230.

[0075] During use, 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 .

[0076] 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 .

[0077] Figure 2 Shows Figure 1 The schematic structural diagram of an embodiment of the atomizer 100 includes:

[0078] Main housing 10; Figure 2 As shown, the main housing 10 is generally in the shape of a vertically long cylinder, and of course the interior thereof is hollow and is a necessary functional component for storing and atomizing liquid matrix; the main housing 10 has a proximal end 110 and a distal end 120 which are opposite to each other along the length direction. The proximal end 110 is configured as an end for the user to inhale aerosol, and an inhalation port 113 for the user to inhale is provided at the proximal end 110; and the distal end 120 is used as an end for combining with the power supply mechanism 200.

[0079] See also Figure 2 As shown, the main housing 10 is provided with a liquid storage chamber 12 for storing liquid matrix, and an atomizing assembly for sucking liquid matrix from the liquid storage chamber 12 and heating and atomizing the liquid matrix. Figure 2 In the schematic diagram shown, an aerosol transmission tube 11 is axially arranged in the main shell 10, and the space between the aerosol transmission tube 11 and the inner wall of the main shell 10 forms a liquid storage chamber 12 for storing a liquid matrix; the aerosol transmission tube 11 extends to or ends at an inhalation port 113, thereby transmitting the generated aerosol to the inhalation port 113 for inhalation.

[0080] In some optional embodiments, the aerosol transmission tube 11 and the main shell 10 are integrally molded with a moldable material, and the liquid storage chamber 12 defined by the molding is open toward the distal end 120 .

[0081] See also Figure 2 and Figure 3 As shown, the atomizer 100 also includes an atomization assembly for atomizing at least part of the liquid matrix to generate an aerosol. Specifically, the atomization assembly includes a porous body 30 that receives or absorbs the liquid matrix from the liquid storage chamber 12; and a heating element 40 for heating at least part of the liquid matrix of the porous body 30 to generate an aerosol. And in some embodiments, the porous body 30 is rigid; and in some embodiments, the porous body 30 includes at least one of porous ceramics, porous glass, porous metal, etc.

[0082] In some embodiments, the porous body 30 has a porosity of about 40-80%; and the pore size of the micropores in the porous body 30 is between 1 and 100 μm; and the average pore size of the micropores in the porous body 30 is between 5 and 80 μm. For example, in some specific embodiments, the average pore size of the micropores in the porous body 30 is about 30 μm. And in some embodiments, the porous body 30 is made by mixing raw materials such as ceramics and glass with a pore-forming agent and a liquid additive into a slurry, and then forming the slurry in a mold and sintering it.

[0083] In some embodiments, the micropores in the porous body 30 sintered by the pore former are disordered. Or in some other embodiments, the porous body 30 is formed by drilling holes in a dense precursor to form micropores or microchannels in a predetermined direction, such as mechanical drilling or laser drilling; in some other embodiments, the micropores in the porous body 30 are arranged in a predetermined direction.

[0084] Further based on Figure 2 As shown, the atomizing assembly is contained or held in a flexible sealing element 20. Also, the sealing element 20 basically surrounds the atomizing assembly and / or the porous body 30, and the sealing element 20 is at least partially used to provide a seal between the main housing 10 and the porous body 30. The flexible sealing element 20 is made of a flexible material including silicone, a thermoplastic elastomer, etc.

[0085] The above-mentioned atomizing assembly is accommodated and held in the sealing element 20, and the porous body 30 of the atomizing assembly is in fluid communication with the liquid storage chamber 12 through the liquid channel 13 defined by the sealing element 20 to receive the liquid matrix. Figure 2 As shown by the middle arrow R1, the liquid in the liquid storage chamber 12 flows to the atomization component through the liquid channel 13 and is then absorbed and heated; the aerosol generated is then output to the inhalation port 113 through the aerosol transmission tube 11 and inhaled by the user. Figure 2 As shown by the arrow R2.

[0086] according to Figure 2 As shown, the atomizing assembly is basically arranged perpendicular to the longitudinal direction of the main housing 10; and an atomizing chamber 340 is defined between the atomizing assembly and the distal end 120, and the atomizing chamber 340 is located on the side of the atomizing assembly away from the liquid storage chamber 12; the atomizing chamber 340 is used to contain the released aerosol. And the heating element 40 is exposed in the atomizing chamber 340. When inhaling, the external air enters the atomizing chamber 340 from the air inlet 22 of the distal end 120, and carries the aerosol in the atomizing chamber 340 to the aerosol transmission tube 11, and then is inhaled by the user at the inhalation port 113.

[0087] exist Figure 2 In the illustrated embodiment, the heating element 40 is substantially perpendicular to the longitudinal direction of the main housing 10 ; and the electrical contact 21 extends from the distal end 120 into the main housing 10 , thereby abutting against or combining with the heating element 40 to form conduction, thereby supplying power to the heating element 40 .

[0088] See also Figures 3 to 5 As shown, the specific structure of the atomization assembly includes:

[0089] The porous body 30 is generally configured in a plate-like or sheet-like shape; the length of the porous body 30 is greater than the width, and the width is greater than the thickness. In an embodiment, the porous body 30 has a surface 310 and a surface 320 that are separated from each other. And in an embodiment, the surface 310 and the surface 320 are arranged opposite to each other along the thickness direction of the porous body 30. Among them, the surface 310 is used as a liquid absorption surface, and is liquid-connected with the liquid storage chamber 12 through the liquid channel 13 to absorb the liquid matrix; and the surface 320 is used as an atomization surface, and a heating element 40 is arranged on the surface 320; the liquid matrix is ​​heated by the heating element 40 on the surface 320 and atomized to generate an aerosol.

[0090] In some embodiments, the porous body 30 includes porous ceramics, porous glass, etc. The porous body 30 has a large number of micropores inside, and absorbs and transfers the liquid matrix through the micropores inside.

[0091] In this embodiment, the porous body 30 is generally in the shape of a sheet, plate or block, and two surfaces opposite to each other in the thickness direction are respectively used as the surface 310 for absorbing the liquid matrix and the surface 320 for heating and atomizing. Or in more embodiments, the porous body 30 can have more shapes, such as arched, cup-shaped, groove-shaped, etc. Or, for example, the applicant provides the shape of the arched porous body with internal channels, and the configuration details of the porous body absorbing the liquid matrix and atomizing the liquid matrix in the Chinese patent application publication No. CN215684777U, and the above document is incorporated herein by reference in its entirety.

[0092] In an embodiment, the surface 320 of the porous body 30 is flat. The heating element 40 is directly bonded to the surface 320 of the porous body 30 by printing, deposition, coating, mounting, welding, mechanical fixing or slurry sintering. Or in some other variations, the surface 310 and / or the surface 320 of the porous body 30 is non-flat; for example, the surface 310 and / or the surface 320 is curved, or the surface 310 and / or the surface 320 is a surface with a groove or a protrusion structure. In some other variations, the surface 320 of the porous body 30 is a curved surface, and the heating element 40 is formed on the curved surface of the porous body 30 by surface mounting, printing, deposition, etc.

[0093] Alternatively, in some other embodiments, the porous body 30 has more surfaces or side surfaces, and then the liquid matrix is ​​absorbed through these more surfaces or side surfaces in fluid communication with the liquid storage chamber 12. And alternatively, in some other embodiments, the heating element 40 can be formed on multiple surfaces or side surfaces to atomize the liquid matrix on multiple surfaces to generate aerosol.

[0094] In some embodiments, the heating element 40 is bonded to the surface 320 of the porous body 30 by printing, deposition, sintering or physical assembly such as surface mounting. In an embodiment, the heating element 40 is in the form of a patterned conductive track formed on the surface 320. Or in some specific embodiments, the heating element 40 is a conductive track formed on the surface 320. And, the heating element 40 is a planar heating element.

[0095] In some embodiments, the material of the heating element 40 is a metal material, metal alloy, graphite, carbon, conductive ceramic or other ceramic material and metal material composite material with appropriate impedance. Among them, the appropriate metal or alloy material includes at least one of nickel, cobalt, zirconium, titanium, nickel alloy, cobalt alloy, zirconium alloy, titanium alloy, nickel-chromium alloy, nickel-iron alloy, iron-chromium alloy, iron-chromium-aluminum alloy, iron-manganese-aluminum-based alloy or stainless steel.

[0096] according to Figures 3 to 5 As shown, the length dimension d1 of the porous body 30 is approximately between 6 and 15 mm; the width dimension d2 of the porous body 30 is approximately between 3 and 6 mm; and the thickness dimension d3 of the porous body 30 is approximately between 0.8 and 3 mm. Accordingly, in the embodiment, the surface 320 has a length dimension of approximately 6 to 15 mm and a width dimension of approximately 3 to 6 mm.

[0097] according to Figures 3 to 5In the illustrated embodiment, the extension dimension of the heating element 40 along the length direction of the surface 320 is approximately between 8 and 12 mm. The porous body 30 / surface 320 has a first end and a second end opposite to each other along the length direction; the heating element 40 has a first spacing with the first end and / or the second end; for example, the first spacing with the heating element 40 and the first end and / or the second end is approximately 1 to 2 mm.

[0098] according to Figures 3 to 5 In the illustrated embodiment, the extension dimension of the heating element 40 along the width direction of the surface 320 is approximately between 2 and 5 mm. The porous body 30 / surface 320 has a first side and a second side opposite to each other along the width direction; the heating element 40 has a second spacing with the first side and / or the second side; for example, the second spacing with the heating element 40 and the first side and / or the second side is approximately 0.5 to 1 mm.

[0099] In some embodiments, the thickness of the heating element 40 is approximately between 0.05 mm and 0.4 mm.

[0100] according to Figure 5 As shown, the heating element 40 comprises:

[0101] The first electrode portion 41 and the second electrode portion 42 are arranged opposite to each other along the length direction of the heating element 40 / surface 320; the first electrode portion 41 is close to the first end of the porous body 30 / surface 320, and the second electrode portion 42 is close to the second end of the porous body 30 / surface 320;

[0102] After assembly, the electrical contact 21 is in abutment against the first electrode portion 41 and the second electrode portion 42 , and thus in use, the heating element 40 is powered via the first electrode portion 41 and the second electrode portion 42 .

[0103] In use, the first electrode portion 41 and the second electrode portion 42 define an electrical connection area for supplying power to the heating element 40. Specifically, a portion of the first electrode portion 41 defines a first electrical connection area 418, and a portion of the second electrode portion 42 defines a second electrical connection area 428; after assembly, one of the two electrical contacts 21 abuts against or connects to the first electrical connection area 418 to thereby conduct with the first electrode portion 41, and the other abuts against or connects to the second electrical connection area 428 to thereby conduct with the second electrode portion 42.

[0104] according to Figure 5 As shown, the heating element 40 also includes:

[0105] The first heating portion 43 and the second heating portion 44 are arranged opposite to each other along the width direction of the heating element 40 / surface 320; the first heating portion 43 and the second heating portion 44 define a heating area for heating by generating resistive Joule heat. The first heating portion 43 and / or the second heating portion 44 are arranged to be connected between the first electrode portion 41 and the second electrode portion 42; or the first heating portion 43 and / or the second heating portion 44 are arranged to extend between the first electrode portion 41 and the second electrode portion 42.

[0106] In use, the first heating part 43 and the second heating part 44 are heated in parallel at the same time. The parallel connection makes the overall resistance value of the heating element 40 lower, thereby having a greater heating power.

[0107] In some specific embodiments, each of the first heating portion 43 and the second heating portion 44 has a resistance value of about 0.8 to 1.6Ω; Figure 5 After being connected in parallel, the parallel resistance value of the first heating portion 43 and the second heating portion 44 is approximately between 0.4 and 0.8Ω.

[0108] In some specific embodiments, when current is directed through the first electrical connection region 418 and the second electrical connection region 428 on the heating element 40 , the overall resistance of the heating element 40 is less than 1.0 Ω.

[0109] exist Figure 5 In the figure, the first heating part 43 and / or the second heating part 44 are arranged in a continuously curved or reciprocating curved shape. Specifically, the first heating part 43 and / or the second heating part 44 are arranged in an Ω shape, or the first heating part 43 and / or the second heating part 44 are arranged in an omega shape; Omega is the 24th letter in the Greek alphabet.

[0110] exist Figure 5 As shown, the Ω-shaped first heating portion 43 protrudes toward the second side and has an opening toward the first side, and the Ω-shaped second heating portion 44 protrudes toward the first side and has an opening toward the second side; the opening directions or protruding directions of the first heating portion 43 and the second heating portion 44 are opposite.

[0111] exist Figure 5 As shown, the first heating portion 43 is close to the first side of the heating element 40 / surface 320; the second heating portion 44 is close to the second side of the heating element 40 / surface 320. Also, the first heating portion 43 is closer to the second electrode portion 42 than the second heating portion 44; the second heating portion 44 is closer to the first electrode portion 41 than the first heating portion 43.

[0112] In this embodiment, the heating element 40 includes only two heating portions generating resistive Joule heat, namely, a first heating portion 43 and a second heating portion 44. The first heating portion 43a and the second heating portion 44a are spaced apart from each other without crossing each other.

[0113] In some embodiments, when current is conducted on the heating element 40 through the first electrical connection area 418 and the second electrical connection area 428, the total resistance of the first heating portion 43 and the second heating portion 44 in parallel accounts for at least 60% of the total resistance of the heating element 40. For example, in a specific embodiment, the overall resistance of the heating element 40 is designed to be approximately 0.7Ω; the total resistance of the first heating portion 43 and the second heating portion 44 is 0.55±0.15Ω.

[0114] In an embodiment, when the heating element 40 is powered by the battery cell 210 with an output voltage of about 3.7 to 4.2 V, the total power of the heating element 40 is 13 W to 16 W. In an embodiment, the power carried per unit length of the first heating portion 43 and the second heating portion 44 during operation is between 0.7 and 1.2 mm / W.

[0115] exist Figure 5 In the illustration, the heating element 40 is a closed ring; and the surface 320 surrounds and defines an aerosol release region 45 within the heating element 40; the aerosol release region 45 is a region for releasing aerosol.

[0116] exist Figure 5 As shown, the heating element 40 has a central symmetric arrangement about the geometric center point o. The heating element 40 has a symmetry of 180 degrees of rotation about the geometric center point o. Also, the heating element 40 is arranged non-axisymmetrically; or, the heating element 40 is arranged asymmetrically in both the length direction and the width direction.

[0117] exist Figure 5 As shown, the track width W4 of the first heating portion 43 and / or the second heating portion 44 is substantially constant; specifically, the first heating portion 43 and / or the second heating portion 44 has a track width W4 of approximately 0.2 to 0.5 mm.

[0118] exist Figure 5 In the illustration, the first heating portion 43 and the second heating portion 44 are staggered in the width direction of the heating element 40 / surface 320; for example, Figure 5In the embodiment, the first heating portion 43 and the second heating portion 44 have a spacing W6 in the width direction of the heating element 40 / surface 320; the spacing W6 is at least 0.1 mm. The first heating portion 43 and the second heating portion 44 are partially staggered and partially overlapped in the length direction of the heating element 40 / surface 320 by a span W5. The first heating portion 43 and the second heating portion 44 are not completely staggered in the length direction of the heating element 40 / surface 320.

[0119] according to Figure 5 As shown in FIG. , the first electrode portion 41 includes:

[0120] A first main body region 411 is arranged to extend along the width direction of the porous body 30 / surface 320; a first electrical connection region 418 is defined by a portion of the first main body region 411;

[0121] The width dimension W1 of the first main body region 411 is variable; specifically, Figure 5 In the embodiment, the first outer edge of the first main body region 411 close to or toward the first end of the porous body 30 / surface 320 is straight; the first inner edge 416 of the first main body region 411 toward the second end of the porous body 30 / surface 320 is curved in an arc shape. The first inner edge 416 is curved toward the first end; thereby, the width dimension W1 of the first main body region 411 is variable.

[0122] according to Figure 5 As shown in , the first electrode portion 41 also includes:

[0123] The first extension region 412 extends from the first main body region 411 to the first heating portion 43; and the first extension region 412 is close to the first side of the porous body 30 / surface 320. The first heating portion 43 is arranged to be connected between the first extension region 412 and the second electrode portion 42 of the first electrode portion 41. The first extension region 412 is inclined. The first extension region 412 has a second outer edge 414 and a second inner edge 415 opposite to each other; the second outer edge 414 and the second inner edge 415 extend substantially straight. The angle between the second outer edge 414 and the length direction of the porous body 30 / surface 320 is smaller than the angle between the second inner edge 415 and the length direction of the porous body 30 / surface 320; that is, the inclination angle of the second inner edge 415 is greater than the inclination angle of the second outer edge 414. Then the width dimension W2 of the first extension region 412 gradually decreases in the direction close to the first heating portion 43. The width dimension W2 is greater than the track width W4.

[0124] In some embodiments, the span W3 of the first elongated region 412 in the length direction of the porous body 30 / surface 320 is substantially the same as the span W5 of the first heating portion 43 in the length direction of the porous body 30 / surface 320. In some specific embodiments, the span W3 and / or the span W5 is between 2 and 4 mm.

[0125] according to Figure 5 As shown, the second electrode portion 42 has a structural arrangement that is centrally symmetrical with the first electrode portion 41 ; specifically, the second electrode portion 42 includes a second main body region 421 and a second extension region 422 .

[0126] The second main body region 421 is arranged to extend along the width direction of the porous body 30 / surface 320; a second electrical connection region 428 is defined by a portion of the second main body region 421; similarly, the width dimension W1 of the second main body region 421 is variable; specifically, Figure 5 In the embodiment, the outer edge of the second main region 421 close to or toward the second end of the porous body 30 / surface 320 is straight; the inner edge of the second main region 421 toward the first end of the porous body 30 / surface 320 is curved in an arc shape. The inner edge of the second main region 421 is curved toward the second end; thus, the width dimension W1 of the second main region 421 is variable.

[0127] Wherein, the second extension region 422 extends from the second main body region 421 to the second heating portion 44; and the second extension region 422 is close to the second side of the porous body 30 / surface 320. The second heating portion 44 is arranged to be connected between the second extension region 422 of the second electrode portion 42 and the first electrode portion 41. The second extension region 422 is inclined. The outer edge and the inner edge of the second extension region 422 extend substantially straight, and the angle between the inner edge and the length direction is greater than the angle between the outer edge and the length direction. Then the width dimension W2 of the second extension region 422 gradually decreases in the direction close to the second heating portion 44. The width dimension W2 is greater than the track width W4.

[0128] or Figure 6 A schematic diagram of an atomizing assembly of yet another embodiment is shown; in this embodiment, a heating element 40a formed on a surface 320a of a porous body 30a comprises:

[0129] The first electrode portion 41a and the second electrode portion 42a are opposite to each other in the length direction, and the first heating portion 43a and the second heating portion 44a are arranged in parallel between the first electrode portion 41a and the second electrode portion 42a.

[0130] In this embodiment, the first extension region 412a of the first electrode portion 41a has an increased width dimension compared to the previous embodiment, so that the first extension region 412a has a larger area. In addition, the inner edge of the first extension region 412a is more inclined. Similarly, the second extension region 422a of the second electrode portion 42a has a similar arrangement.

[0131] In this embodiment, by increasing or increasing the width of the first extension area 412a of the first electrode part 41a and the second extension area 422a of the second electrode part 42a, when the heating element 40a is working, the first extension area 412a and the second extension area 422a have a smaller resistance due to the relatively increased width and area, so that the distribution of the resistance of the heating element 40a is more concentrated on the first heating part 43a and the second heating part 44a. For example, in this embodiment, when the current is guided on the heating element 40a through the first main body area 411a of the first electrode part 41a and the second main body area 421a of the second electrode part 42a, the proportion of the total resistance of the first heating part 43a and the second heating part 44a in parallel to the total resistance value of the heating element 40a is increased to at least 80%. For example, in a specific embodiment, the overall resistance value of the heating element 40a is designed to be about 0.7Ω; the total resistance of the first heating part 43a and the second heating part 44a is 0.62±0.15Ω.

[0132] In this embodiment, the shortest distance W7 between the first heating portion 43a and the second heating portion 44a is greater than the track width W4 of the first heating portion 43a and / or the second heating portion 44a, which is beneficial for preventing the high temperature points of the temperature fields of the first heating portion 43a and the second heating portion 44a from overlapping and forming overheating. For example, in a specific embodiment, the shortest distance W7 between the first heating portion 43a and the second heating portion 44a is between 0.3 and 0.8 mm.

[0133] In this embodiment, the shortest distance W7 between the first heating portion 43a and the second heating portion 44a is greater than the shortest distance W8 between the first heating portion 43a and the first electrode portion 41a / the second electrode portion 42a. For example, in a specific embodiment, the shortest distance W8 is substantially equal to the track width W4 of the first heating portion 43a.

[0134] or Figure 7 A schematic structural diagram of an atomizing assembly of another embodiment is shown from one perspective; in this embodiment, a heating element 40b formed on a surface 320b of a porous body 30b includes:

[0135] A first electrode portion 41b and a second electrode portion 42b are arranged at intervals along the length direction;

[0136] and, a first heating portion 43b and a second heating portion 44b extending between the first electrode portion 41b and the second electrode portion 42b in the length direction;

[0137] In this embodiment, the first heating portion 43b and the second heating portion 44b are extended in a waveform or are in a waveform; specifically, for example, the first heating portion 43b and the second heating portion 44b are in a waveform shape of a sine wave or a cosine wave.

[0138] The first heating portion 43b and the second heating portion 44b are arranged at intervals in the width direction. The first heating portion 43b and the second heating portion 44b each have only one sine cycle or cosine cycle; the waveform phase and / or waveform amplitude of the first heating portion 43b and the second heating portion 44b are the same. The peaks and / or troughs of the first heating portion 43b and the second heating portion 44b are aligned or aligned in the width direction rather than staggered.

[0139] In this embodiment, the first electrode portion 41b is arranged relatively closer to the first side and farther from the second side; and the second electrode portion 42b is arranged relatively closer to the second side and farther from the first side. Specifically, the distance d3 between the first electrode portion 41b and the second side is greater than the distance d4 between the first electrode portion 41b and the first side; accordingly, the distance d3 between the second electrode portion 42b and the first side is greater than the distance d4 between the second electrode portion 42b and the second side.

[0140] In this embodiment, a connection position 417b and a connection position 419b are arranged on the first electrode portion 41b; the connection position 417b is arranged near the center of the first electrode portion 41b, and the connection position 419b is near or located at the end of the first electrode portion 41b facing the second side. A connection position 427b and a connection position 429b are arranged on the second electrode portion 42b; the connection position 427b is arranged near the center of the second electrode portion 42b, and the connection position 429b is near or located at the end of the second electrode portion 42b facing the first side. The first heating portion 43b is connected between the connection position 417b and the connection position 429b; and the second heating portion 44b is connected between the connection position 419b and the connection position 427b.

[0141] In this embodiment, the first electrode portion 41b has a first extension region 411b located between the connection position 417b and the first side; the second electrode portion 42b has a second extension region 412b located between the connection position 427b and the second side. In this embodiment, after assembly, the electrical connection region of the heating element 40b is defined by the first extension region 411b and the second extension region 412b for supplying power to the heating element 40b. Specifically, after assembly, one of the two electrical contacts 21 abuts against the first extension region 411b to form conduction, and the other abuts against the second extension region 412b to form conduction.

[0142] It should be noted that the preferred embodiments of the present application are given in the specification and drawings of the present application, but are not limited to the embodiments described in the specification. Furthermore, it is possible for a person of ordinary skill in the art to make improvements or changes based on the above description, and all such improvements and changes should fall within the scope of protection of the claims attached to the present application.

Claims

1. An electronic atomization device, characterized in that: include: A liquid storage chamber, used for storing a liquid matrix; A porous body, in fluid communication with the liquid storage chamber to absorb the liquid matrix; the porous body comprises a first side and a second side opposite to each other in a width direction; a heating element formed on or bonded to the porous body, for heating at least a portion of the liquid matrix of the porous body to generate an aerosol; The heating element comprises: a first electrode portion and a second electrode portion arranged at intervals along a length direction of the porous body; a first heating portion connected between the first electrode portion and the second electrode portion; a second heating portion connected between the first electrode portion and the second electrode portion; The first heating portion is arranged close to the first side and at least partially protrudes toward the second side; and / or the second heating portion is arranged close to the second side and at least partially protrudes toward the first side.

2. The electronic atomization device according to claim 1, characterized in that: When current is conducted on the heating element through the first electrode portion and the second electrode portion, the parallel resistance of the first heating portion and the second heating portion is between 0.4 and 0.8Ω.

3. The electronic atomization device according to claim 1 or 2, characterized in that: Also includes: A battery cell having an output voltage of 3.7 to 4.2 V; when the output voltage of the battery cell is provided to the heating element, the operating power of the heating element is between 13 W and 16 W; and during operation, a ratio of the length of the first heating portion and / or the second heating portion to the carried power is between 0.7 and 1.2 mm / W.

4. The electronic atomization device according to claim 1 or 2, characterized in that: The heating element is centrosymmetric and non-axisymmetric.

5. The electronic atomization device according to claim 1 or 2, characterized in that: The first heating portion and / or the second heating portion are arranged in an Ω shape or an omega shape.

6. The electronic atomization device according to claim 1 or 2, characterized in that: The heating element is arranged in a closed ring shape; the surface of the porous body has an exposed aerosol release area surrounded and defined by the heating element for releasing aerosol.

7. The electronic atomization device according to claim 1 or 2, characterized in that: The first heating portion and the second heating portion are spaced apart from each other without crossing each other.

8. The electronic atomization device according to claim 1 or 2, characterized in that: The heating element is arranged to be a conductive track formed or bonded to the porous body.

9. The electronic atomization device according to claim 8, characterized in that: The shortest distance between the first heating portion and the second heating portion is greater than a track width of the first heating portion and / or the second heating portion.

10. The electronic atomization device according to claim 8, characterized in that: The track width of the first heating portion and / or the second heating portion is substantially constant; The track width of the first heating portion and / or the second heating portion is between 0.2 and 0.5 mm.

11. The electronic atomization device according to claim 1 or 2, characterized in that: In use, the first electrode portion and the second electrode portion define an electrical connection area for powering the heating element, and the first heating portion and the second heating portion define a heating area for heating a liquid substrate by resistive Joule heating; when an electric current is conducted on the heating element through the first electrode portion and the second electrode portion, the parallel resistance of the first heating portion and the second heating portion accounts for at least 60% of the total resistance value of the heating element.

12. The electronic atomization device according to claim 1 or 2, characterized in that: The first heating portion and the second heating portion are symmetrical with respect to the center of the surface of the porous body.

13. The electronic atomization device according to claim 1 or 2, characterized in that: The first heating portion defines a first opening toward the first side; And / or, the second heating portion defines a second opening toward the second side.

14. The electronic atomization device according to claim 1 or 2, characterized in that: The protruding portion of the first heating portion is closer to the second electrode portion than the protruding portion of the second heating portion, and the protruding portion of the second heating portion is closer to the first electrode portion than the protruding portion of the first heating portion.

15. The electronic atomization device according to claim 1 or 2, characterized in that: The protruding portion on the first heating portion and the protruding portion on the second heating portion are staggered along the length direction of the porous body.

16. The electronic atomization device according to claim 1 or 2, characterized in that: The first electrode portion comprises: a first main body region defining a first electrical connection region; a first elongated region extending from the first main body region to the first heating portion and close to the first side; the first heating portion being connected between the first elongated region and the second electrode portion; And / or, the second electrode portion comprises: a second main body region defining a second electrical connection region; The second extension region extends from the second main body region to the second heating portion and is close to the second side; the second heating portion is connected between the second extension region and the first electrode portion.

17. The electronic atomization device according to claim 16, characterized in that: The first elongated region and / or the second elongated region are arranged obliquely.

18. The electronic atomization device according to claim 16, characterized in that: The width of the first elongated area gradually decreases along a direction approaching the first heating portion; and / or the width of the second elongated area gradually decreases along a direction approaching the second heating portion.

19. The electronic atomization device according to claim 16, characterized in that: The outer edge and the inner edge of the first extension region extend straight; and the angle between the outer edge of the first extension region and the length direction of the porous body is smaller than the angle between the inner edge of the first extension region and the length direction of the porous body; And / or, the outer edge and inner edge of the second extension region extend straightly; and the angle between the outer edge of the second extension region and the length direction of the porous body is smaller than the angle between the inner edge of the second extension region and the length direction of the porous body.

20. An electronic atomization device, characterized in that: include: A liquid storage chamber, used for storing a liquid matrix; A porous body is connected to the liquid storage chamber fluid to absorb the liquid matrix; the porous body includes a first side and a second side opposite to each other in the width direction a heating element formed on or bonded to the porous body, for heating at least a portion of the liquid matrix of the porous body to generate an aerosol; The heating element comprises: a first electrode portion and a second electrode portion arranged at intervals along the length direction of the porous body; a first heating portion connected between the first electrode portion and the second electrode portion; a second heating portion connected between the first electrode portion and the second electrode portion; The first heating portion and the second heating portion are arranged in an Ω shape or an omega shape; the first heating portion is close to the first side and at least partially protrudes toward the second side; the second heating portion is arranged close to the second side and at least partially protrudes toward the first side.

21. An atomization assembly for an electronic atomization device, characterized in that: include: A porous body including a first side and a second side opposite to each other in a width direction; a heating element formed on or bonded to the porous body; The heating element comprises: a first electrode portion and a second electrode portion arranged at intervals along the length direction of the porous body; a first heating portion connected between the first electrode portion and the second electrode portion; a second heating portion connected between the first electrode portion and the second electrode portion; The first heating portion and the second heating portion are arranged in an Ω shape or an omega shape; the first heating portion is close to the first side and at least partially protrudes toward the second side; the second heating portion is arranged close to the second side and at least partially protrudes toward the first side.

22. An electronic atomization device, characterized in that: include: A liquid storage chamber, used for storing a liquid matrix; A porous body, in fluid communication with the liquid storage chamber to absorb the liquid matrix; the porous body comprises a first side and a second side opposite to each other in a width direction; a heating element formed on or bonded to the porous body, for heating at least a portion of the liquid matrix of the porous body to generate an aerosol; The heating element comprises: a first electrode portion and a second electrode portion arranged at intervals along the length direction of the porous body, the first electrode portion having a smaller distance from the first side than the second side, and the second electrode portion having a larger distance from the first side than the second side; The first heating part is connected between the first electrode part and the second electrode part and extends in a wave shape; the second heating part is connected between the first electrode part and the second electrode part and extends in a wave shape; the first heating part and the second heating part are arranged at intervals along the width direction of the porous body; the wave crest of the first heating part and the wave crest of the second heating part are aligned or aligned in the width direction of the porous body.

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