Atomizer and electronic atomization device

Abstract

The invention provides an atomizer and an electronic atomization device. The atomizer comprises a liquid storage cavity used for storing a liquid matrix; the heating element is used for heating the liquid substrate to generate aerosol; the air channel is used for providing a path for air to enter the liquid storage cavity; the air channel comprises a first Tesla valve channel and a second Tesla valve channel, and when the liquid matrix of the liquid storage cavity flows out through one of the first Tesla valve channel and the second Tesla valve channel, the other provides a backflow path enabling the flowing-out liquid matrix to flow back towards the liquid storage cavity. According to the atomizer, through the air channel defined by the first Tesla valve channel and the second Tesla valve channel, air is supplemented to the liquid storage cavity through the air channel, and meanwhile liquid matrixes are prevented from seeping out through the air channel.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of electronic atomization, and in particular to an atomizer and an 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, which releases a compound by heating rather than burning a material. For example, the material may be tobacco or other non-tobacco products, which may or may not contain nicotine. As another example, there is an aerosol providing product, for example, a so-called electronic atomization device. These devices generally include a liquid storage chamber for storing a liquid, and the liquid in the liquid storage chamber is delivered to the atomization assembly for heating so that it is vaporized, thereby producing an inhalable aerosol. In use, as the liquid is consumed, the negative pressure in the liquid storage chamber gradually increases, thereby preventing the liquid from being delivered to the atomization assembly under the internal negative pressure. Summary of the invention

[0004] An embodiment of the present application provides an atomizer, comprising:

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

[0006] a heating element for heating the liquid matrix to generate an aerosol;

[0007] An air channel is used to provide a path for air to enter the liquid storage chamber; the air channel includes a first Tesla valve channel and a second Tesla valve channel, and when the liquid matrix of the liquid storage chamber flows out through one of the first Tesla valve channel and the second Tesla valve channel, the other provides a reflux path for the outflowing liquid matrix to flow back toward the liquid storage chamber.

[0008] In some embodiments, the first Tesla valve channel includes a first end communicating with the liquid storage chamber, and a second end facing away from the first end; the second Tesla valve channel includes a third end communicating with the liquid storage chamber, and a fourth end facing away from the third end;

[0009] The second end of the first Tesla valve channel is communicated with the fourth end of the second Tesla valve channel.

[0010] In some embodiments, the first end of the first Tesla valve channel and the third end of the second Tesla valve channel are spaced apart.

[0011] In some embodiments, the first Tesla valve channel and the second Tesla valve channel are arranged in mirror symmetry.

[0012] In some embodiments, an air inlet of the air channel is defined between the second end and the fourth end.

[0013] In some embodiments, it also includes:

[0014] An arc-shaped connecting channel is used to provide a connection between the second end of the first Tesla valve channel and the fourth end of the second Tesla valve channel.

[0015] In some embodiments, the liquid storage cavity has an open opening;

[0016] The atomizer also includes:

[0017] A flexible sealing element, used to close the opening of the liquid storage chamber;

[0018] a rigid support at least partially located inside the sealing element so as to support the sealing element from the inside of the sealing element;

[0019] The air passage is defined between the sealing element and the bracket.

[0020] In some embodiments, the first Tesla valve channel and / or the second Tesla valve channel comprises a groove structure formed on the surface of the bracket.

[0021] In some embodiments, it also includes:

[0022] a housing at least partially defining an outer surface of the atomizer;

[0023] Flexible stent;

[0024] A porous body, contained and held in the support; the porous body comprises a first surface and a second surface, the first surface is in fluid communication with the liquid storage chamber to absorb the liquid matrix, and the heating element is combined with the second surface;

[0025] A liquid channel is defined between the support and the shell, and the porous body is in fluid communication with the liquid storage chamber through the liquid channel.

[0026] In some embodiments, a groove extending in the longitudinal direction is arranged on the outer surface of the bracket, and at least a part of the liquid channel is defined between the groove and the main shell;

[0027] The support has a window adjacent to the groove; when the porous body is accommodated in the support, at least a portion of the first surface is exposed to the groove through the window.

[0028] In some embodiments, the housing comprises:

[0029] A main housing having proximal and distal ends facing each other;

[0030] an end cap coupled to the distal end; the bracket being at least partially located between the main housing and the end cap to provide a seal therebetween;

[0031] The air passage is defined between the end cap and the bracket.

[0032] Yet another embodiment of the present application provides an electronic atomization device, comprising the atomizer described above, and a power supply mechanism for supplying power to the atomizer.

[0033] The above atomizer, through the air channel defined by the first Tesla valve channel and the second Tesla valve channel, replenishes air into the liquid storage chamber through the air channel while preventing the liquid matrix from leaking through the air channel. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] 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.

[0035] Figure 1 is a schematic diagram of an electronic atomization device provided by an embodiment;

[0036] Figure 2 yes Figure 1 A schematic diagram of the structure of the atomizer from one perspective;

[0037] Figure 3 yes Figure 2 A schematic diagram of the atomizer from one perspective;

[0038] Figure 4 yes Figure 2 A schematic diagram of the atomizer from another perspective;

[0039] Figure 5 yes Figure 2 A cross-sectional schematic diagram of a middle atomizer from one perspective;

[0040] Figure 6 yes Figure 2 A cross-sectional diagram of the atomizer from another perspective;

[0041] Figure 7 yes Figure 3 An exploded view of the middle end cover and bracket before assembly;

[0042] Figure 8 yes Figure 7 An exploded view of the middle cover and bracket before assembly from another perspective;

[0043] Fig. 9 yes Figure 3 An exploded schematic diagram of the sealing element and the bracket before assembly from one perspective;

[0044] Fig.10 yes Fig. 9 A schematic diagram showing a first Tesla valve channel and a second Tesla valve channel forming a barrier to liquid seepage and providing air inflow;

[0045] Fig.11 is an exploded schematic diagram of an atomizer according to another embodiment from one perspective;

[0046] Fig.12 yes Fig.11 A schematic diagram of the atomizer from another perspective;

[0047] Fig.13 yes Fig.11 A cross-sectional schematic diagram of a middle atomizer from one perspective;

[0048] Fig.14 yes Fig.11 A cross-sectional diagram of the atomizer from another perspective;

[0049] Fig.15 yes Fig.11 A schematic diagram showing a view of the atomization assembly being assembled in the bracket;

[0050] Fig.16 yes Fig.11 An exploded view of the middle bracket and the end cap before assembly;

[0051] Fig.17 yes Fig.16 Schematic diagram of the decomposition from another perspective before the middle bracket and end cover are assembled. DETAILED DESCRIPTION

[0052] 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.

[0053] 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 atomizing the liquid matrix to generate an aerosol, and a power supply mechanism 200 for supplying power to the atomizer 100 .

[0054] In an alternative implementation, such as Figure 1As shown, the power supply mechanism 200 includes a receiving cavity 270 arranged at one end in the length direction for receiving and accommodating at least a portion of the atomizer 100, and an electrical contact 230 at least partially exposed in the receiving cavity 270, which is used to form an electrical connection with the atomizer 100 when at least a portion of the atomizer 100 is received and accommodated in the power supply mechanism 200, thereby supplying power to the atomizer 100.

[0055] according to Figure 1 In the illustrated embodiment, an electric contact 21 is provided at the end of the atomizer 100 opposite to the power supply mechanism 200 along the length direction, and 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 conduction.

[0056] according to Figure 1 In the illustrated embodiment, a magnetic element 22 is further provided on the atomizer 100; the power supply mechanism 200 is provided with a magnetic element 280; when the atomizer 100 is received in the receiving cavity 270, the magnetic element 280 and the magnetic element 22 are magnetically adsorbed, so that the atomizer 100 is stably maintained in the receiving cavity 270.

[0057] 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 1 In the illustrated embodiment, the seal 260 is configured to extend in a longitudinal direction perpendicular to the power mechanism 200 and is preferably made of a flexible material such as silicone, thereby preventing the liquid matrix that infiltrates from the atomizer 100 into the receiving chamber 270 from flowing to the controller 220, the sensor 250 and other components inside the power mechanism 200.

[0058] exist Figure 1 In the illustrated embodiment, the power supply mechanism 200 also includes a battery cell 210 arranged away from the receiving cavity 270 along the length direction for power supply; and a controller 220 arranged between the battery cell 210 and the receiving cavity 270, which can be operated to guide current between the battery cell 210 and the electrical contact 230.

[0059] During use, the power supply mechanism 200 includes a sensor 250 for sensing changes in airflow passing through the atomizer 100 when the user draws on the atomizer 100 , and then the controller 220 controls the battery cell 210 to supply power to the atomizer 100 according to a detection signal from the sensor 250 .

[0060] exist Figure 1 In the illustrated embodiment, 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 .

[0061] Figures 2 to 6 The embodiment shows Figure 1 The schematic diagram of the structure of an embodiment of the atomizer 100 includes:

[0062] Main housing 10; Figures 2 to 6 As shown in the figure, the main shell 10 is roughly in the shape of a flat cylinder; the main shell 10 has a proximal end 110 and a distal end 120 opposite to each other along the length direction; wherein, according to the requirements of normal use, the proximal end 110 is configured as an end for the user to inhale aerosol, and an air outlet 130 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, and the distal end 120 of the main shell 10 is open, and a detachable end cover 20 is installed thereon, and the open structure is used to install various necessary functional components into the inside of the main shell 10.

[0063] exist Figures 2 to 6 In the specific implementation shown, the electric contact 21 penetrates from the surface of the end cap 20 to the inside of the atomizer 100, and at least part of it is exposed at the end cap 20 / atomizer 100 / distal end 120. When the atomizer 100 is received in the receiving cavity 270 of the power supply mechanism 200, the electric contact 21 can be in contact with the electric contact 230 to form electrical conduction. At the same time, an air inlet 23 is also provided on the end cap 20 for allowing external air to enter the atomizer 100 during suction.

[0064] See also Figures 2 to 6 As shown, the main housing 10 is provided with 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. The atomizing assembly generally includes a capillary liquid conducting element for drawing the liquid matrix, and a heating element combined with the liquid conducting element, and the heating element heats at least a portion of the liquid matrix of the liquid conducting element to generate an aerosol during power-on. In an optional implementation, the liquid conducting element includes flexible fibers, such as cotton fibers, non-woven fabrics, glass fiber ropes, etc., or includes a porous material with a microporous structure, such as porous ceramics; the heating element can be combined with the liquid conducting element by printing, deposition, sintering or physical assembly, or wound on the liquid conducting element.

[0065] exist Figures 2 to 6 In the specific implementation shown, an aerosol output tube 11 extending from the proximal end 110 toward the distal end 120 is provided inside the main housing 10 to define an output channel for outputting aerosol. And in an embodiment, the aerosol output tube 11 is integrally molded with the main housing 10; for example, they are integrally molded from a moldable organic polymer plastic. And in an embodiment, a liquid storage chamber 12 for storing a liquid matrix is ​​defined between the aerosol output tube 11 and the main housing 10.

[0066] according to Figures 2 to 6As shown, the nebulizer 100 also includes an atomization component for heating and atomizing the liquid matrix from the liquid storage chamber 12 to generate an aerosol; specifically, the atomization component includes:

[0067] The porous body 30 is, for example, porous ceramic or porous glass. The porous body 30 is in fluid communication with the liquid storage chamber 12, and is used to receive and buffer the liquid matrix from the liquid storage chamber 12. Figures 2 to 6 In the embodiment, the porous body 30 is configured to be arranged along the longitudinal extension of the atomizer 100; and the porous body 30 is generally configured to be in a sheet shape; and the porous body 30 is in an arc-shaped sheet shape; and the porous body 30 has a first surface 310 and a second surface 320 opposite to each other in a thickness direction; wherein, in use, the first surface 310 is configured to be a liquid absorption surface, which is in fluid communication with the liquid storage chamber 12 to absorb the liquid matrix; and the second surface 320 is configured to be an atomization surface;

[0068] The heating element 40 is combined on the second surface 320 and is used to heat at least a portion of the liquid matrix in the porous body 30 to generate aerosol.

[0069] In some embodiments, the heating element 40 includes a conductive track formed on the atomized surface 320 by printing, deposition, etc. Specifically, the heating element 40 includes a printed conductive track that is tortuous or zigzag. Alternatively, in other variant embodiments, the heating element 40 is a sheet heating element that is cut or etched from a sheet substrate and then mounted on the second surface 320.

[0070] The heating element 40 is made of a resistive metal material or a metal alloy material having appropriate impedance; for example, appropriate metal or alloy materials include 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, titanium alloy, iron-manganese-aluminum-based alloy or stainless steel.

[0071] In some embodiments, the porous body 30 is in the shape of a straight sheet or plate; and the first surface 310 and the second surface 320 are flat and extended planes.

[0072] exist Figures 2 to 6 In the illustrated embodiment, the porous body 30 is in the shape of a curved arc sheet; and the first surface 310 and the second surface 320 are curved surfaces.

[0073] exist Figures 2 to 6 In the illustrated embodiment, the atomizer 100 further comprises:

[0074] The flexible sealing element 60 is made of a flexible material such as silicone or thermoplastic elastomer, and is combined with the opening of the liquid storage chamber 12 toward the distal end 120 to close the liquid storage chamber 12 .

[0075] The sealing element 60 is provided with a first liquid guide hole 61, so that during use, the liquid matrix in the liquid storage chamber 12 can only leave through the first liquid guide hole 61. In addition, the sealing element 60 is also provided with a first plug hole 62 for inserting the aerosol output tube 11.

[0076] exist Figures 2 to 6 In the illustrated embodiment, the atomizer 100 further comprises:

[0077] The bracket 50 includes a first portion 510 and a second portion 520 arranged in the longitudinal direction; wherein the first portion 510 is positioned inside the sealing element 60 to support the sealing element 60 inside the sealing element 60; the second portion 520 is arranged close to one side in the width direction, and the porous body 30 is supported or held on the second portion 520. A first avoidance space 55 is defined between the first portion 510 and the second portion 520 of the bracket 50. And after assembly, the second surface 320 of the porous body 30 held by the second portion 520 is exposed in the first avoidance space 55.

[0078] exist Figures 2 to 6 In the embodiment shown, the inner surface of the main housing 10 is also arranged with:

[0079] The retaining ribs 15 extend in the liquid storage chamber 12 along the longitudinal direction, so as to abut against the sealing element 60 after assembly, so as to clamp and fix the sealing element 60 with the first portion 510 of the bracket 50 respectively.

[0080] The support 50 further defines a second liquid guide hole 51 extending from the first portion 510 to the second portion 520; when the porous body 310 is held on the second portion 520, the first surface 310 of the porous body 310 is connected to the second liquid guide hole 51; in use, the liquid matrix in the liquid storage chamber 12 can pass through the first liquid guide hole 61 and the second liquid guide hole 51 in sequence, and be delivered to the first surface 310 of the porous body 310 for absorption, such as Figures 2 to 6 As shown by the arrow R1.

[0081] according to Figures 2 to 6 As shown, the atomizer 100 further includes:

[0082] The sealing element 70 , such as an O-ring or the like, is arranged around the porous body 30 and is used to provide a seal between the second portion 520 of the bracket 50 and the porous body 30 when the porous body 30 is held on the second portion 520 of the bracket 50 .

[0083] A second plug hole 52 is also defined in the bracket 50, which extends from the first part 510 to the first avoidance space 55; and after assembly, the aerosol output tube 11 passes through the first plug hole 62 and the second plug hole 52 in sequence to form a connection, so as to deliver the aerosol released from the second surface 320 of the porous body 30 to the air outlet 130 through the aerosol output tube 11.

[0084] according to Figures 3 to 8 As shown, the end cap 20 includes:

[0085] The support portion 24 extends from the distal end 120 into the main housing 10; and the support portion 24 is arranged near one side of the end cover 20 in the width direction; and the support portion 24 defines a second escape space 25 located on the other side of the end cover 20 in the width direction. After assembly, the support portion 24 extends into the first escape space 55 of the bracket 50 to abut against the first portion 510 to provide support; and the second portion 520 of the bracket 50 extends into the second escape space 25 of the end cover 20.

[0086] according to Figures 3 to 8 As shown, after assembly, there is a distance between the support portion 24 and the second portion 520, and the distance between them defines an atomization chamber to accommodate the aerosol released from the second surface 320 of the porous body 30. And, the air inlet 23 is opposite to and communicates with the atomization chamber; and, the aerosol output tube 11 is opposite to and communicates with the atomization chamber; and, the second surface 320 of the porous body 30 is exposed to the atomization chamber; and then during inhalation, external air enters the atomization chamber from the air inlet 23, and carries the aerosol to be output from the aerosol output tube 11 to the air outlet 130, as shown in FIG. Figure 5 and Figure 6 As shown by the arrow R2.

[0087] exist Figure 7 and Figure 8 In the figure, a first connection structure 521, such as a hook, is arranged on the second part 520 of the bracket 50; correspondingly, a second connection structure 26, such as a slot, is arranged on the end cover 20; after assembly, the bracket 50 and the end cover 20 are connected and fastened by the first connection structure 521 and the second connection structure 26.

[0088] exist Figure 7 and Figure 8 In the embodiment, the electric contact 21 penetrating into the end cover 20 abuts against the heating element 40 to form conduction, so as to guide the current in the heating element 40 so that the heating element 40 generates heat through the resistive Joule heat.

[0089] See also Figures 7 to 10As shown, an air channel is also defined between the first portion 510 of the bracket 50 and the sealing element 60 to provide a flow path for air to enter the liquid storage chamber 12. Specifically, the air channel includes:

[0090] The first portion 510 of the bracket 50 has an upper surface 511 and a lower surface 512 facing each other; wherein the upper surface 512 faces the liquid storage chamber 12 and / or the sealing element 60;

[0091] A first Tesla valve channel 531 and a second Tesla valve channel 532 are arranged on the upper surface 511 of the bracket 50; the first Tesla valve channel 531 and the second Tesla valve channel 532 are arranged in mirror symmetry with each other; the first Tesla valve channel 531 has a first end 5311 and a second end 5312; the second Tesla valve channel 532 has a third end 5321 and a fourth end 5322.

[0092] The first Tesla valve channel 531 and the second Tesla valve channel 532 are arranged to be a groove structure formed on the upper surface 511 of the bracket 50; and in terms of arrangement, the first end 5311 of the first Tesla valve channel 531 and the third end 5321 of the second Tesla valve channel 532 are spaced apart; and, the second end 5312 of the first Tesla valve channel 531 and the fourth end 5322 of the second Tesla valve channel 532 are connected or communicated through an arc-shaped connecting channel 533.

[0093] Correspondingly, the sealing element 60 is provided with a first perforation 63 and a second perforation 64 arranged at intervals; after assembly, the first perforation 63 is opposite to and connected with the first end 5311 of the first Tesla valve channel 531, so that the first end 5311 of the first Tesla valve channel 531 is connected to the liquid storage chamber 12 through the first perforation 63; and the second perforation 64 is opposite to and connected with the third end 5321 of the second Tesla valve channel 532, so that the third end 5321 of the second Tesla valve channel 532 is connected to the liquid storage chamber 12 through the second perforation 64.

[0094] according to Fig. 9 and Fig.10As shown, the first part 510 is also provided with an air hole 56, which runs from the upper surface 511 to the lower surface 512; and the air hole 56 is in airflow communication with the atomization chamber and / or the air inlet 23; and the air hole 56 is spaced apart from the second end 5312 of the first Tesla valve channel 531 and the fourth end 5322 of the second Tesla valve channel 532. Specifically, an air groove 58 is arranged on the upper surface 511, and the air hole 56 is located in the air groove 58 and surrounded by an annular convex edge; the connecting channel 533 has an air inlet 5331 adjacent to and communicating with the air groove 58, thereby connecting the second end 5312 of the first Tesla valve channel 531 and the fourth end 5322 of the second Tesla valve channel 532 with the air hole 56. And the air inlet 5331 is located between the second end 5312 of the first Tesla valve channel 531 and the fourth end 5322 of the second Tesla valve channel 532.

[0095] In use Fig. 9 As shown by the middle arrow R3, when the negative pressure in the liquid storage chamber 12 reaches a threshold value or exceeds the threshold value, the air entering the air groove 58 from the air hole 56 can be delivered to the first perforation 63 through the first Tesla valve channel 531 and enter the liquid storage chamber 12 and / or delivered to the second perforation 64 through the second Tesla valve channel 532 and enter the liquid storage chamber 12, so as to relieve or eliminate the negative pressure in the liquid storage chamber 12.

[0096] By using the above-mentioned first Tesla valve channel 531 and second Tesla valve channel 532 connected to each other, an air channel is provided for air to enter the liquid storage chamber 12. When the liquid matrix in the liquid storage chamber 12 can form a backflow through the connected first Tesla valve channel 531 and second Tesla valve channel 532 during use, it is beneficial to minimize the leakage of the liquid matrix from the air channel.

[0097] Specifically according to Fig.10 As shown, when the liquid matrix in the liquid storage chamber 12 enters the first end 5311 of the first Tesla valve channel 531 through the first perforation 63, a plurality of tributaries R311 and R312 that merge in opposite directions are formed in the flow toward the second end 5312, thereby increasing the resistance of the liquid matrix to flow out through the first Tesla valve channel 531. On the other hand, based on the asymmetric characteristics of the Tesla valve channel, which is difficult to flow out and easy to flow in, combined with the negative pressure characteristics of the liquid storage chamber 12, when the liquid matrix flows into the second end 5312 of the first Tesla valve channel 531 and then flows into the fourth end 533 of the second Tesla valve channel 532 along the connecting channel 533, it is very easy to form a reflux R32 that flows along the second Tesla valve channel 532 to the liquid storage chamber 12, rather than directly seeping out in large quantities from the air inlet 5331 of the connecting channel 533.

[0098] Similarly, when the liquid matrix in the liquid storage chamber 12 enters the third end 5321 of the second Tesla valve channel 532 through the second through hole 64 , a backflow through the first Tesla valve channel 531 is similarly formed.

[0099] Figures 11 to 17 A schematic diagram of a nebulizer 100a of another embodiment is shown, in which the nebulizer 100a comprises:

[0100] The main housing 10a has a proximal end 110a and a distal end 120a facing each other; the proximal end 110a of the main housing 10a is provided with an air outlet 130a, and the distal end 120a is open;

[0101] An end cap 20a, coupled to the distal end 120a and closing the distal end 120a;

[0102] The aerosol output tube 11a is arranged to extend longitudinally from the proximal end 110a toward the distal end 120a; and defines a liquid storage chamber 12a for storing a liquid matrix with the main housing 10a;

[0103] The porous body 30a is arranged along the longitudinal extension of the atomizer 100a and has a first surface 310a and a second surface 320a; wherein the first surface 310a is used to communicate with the liquid storage chamber 12a fluid to absorb the liquid matrix;

[0104] A heating element 40a, coupled to the second surface 320a of the porous body 30a, for heating at least a portion of the liquid matrix in the porous body 30a to generate an aerosol;

[0105] The flexible bracket 50a is configured to be a cylindrical shape extending in the longitudinal direction, so as to close the opening of the liquid storage chamber 12a toward the distal end 120a; and after assembly, the porous body 30a is accommodated and retained in the bracket 50a; the bracket 50a has a groove 51a on one side along the thickness direction; and the groove 51a defines a liquid channel that is supposed to be located between the bracket 50a and the main shell 10a; the first surface 310a of the porous body 30a is facing and exposed to the groove 51a, and is used to absorb the liquid matrix; and after assembly, the bracket 50a at least partially surrounds and encloses the end cap 20a, and is at least partially located between the end cap 20a and the main shell 10a at the distal end 120a, thereby providing a seal therebetween;

[0106] The electric contact 21a is passed through the end cover 20a into the bracket 50a, and then abuts against the heating element 40a to form conduction, so as to supply power to the heating element 40a.

[0107] according to Figures 13 to 17 As shown, the bracket 50a is defined as follows:

[0108] A first space 56a, and a second space 55a located on both sides of the first space 56a; the first space 56a and / or the second space 55a are closed on the side facing the liquid storage chamber 12a, and they are open on the side away from the liquid storage chamber 12a;

[0109] The porous body 30a is accommodated and held in the first space 56a; and the first space 56a defines a window 561a facing the groove 51a; after assembly, the first surface 310a of the porous body 30a is exposed to the outside of the bracket 50a through the window 561a, and absorbs the liquid matrix through the groove 51a, such as Fig.14 As shown by the arrow R1, the second surface 320a of the porous body 30a is exposed in the first space 56a;

[0110] The aerosol output tube 11a is inserted into the plug hole 52a and then extends into the first space 56a, and is connected to the first space 56a by air flow; and an atomization chamber for accommodating aerosol is defined by the first space 56a; during inhalation, external air enters the first space 56a from the air inlet 23a of the end cover 20a, and carries the aerosol from the aerosol output tube 11a to the air outlet 130a, as shown in FIG. Fig.13 and Fig.14 As shown by the arrow R2.

[0111] according to Figures 13 to 17 As shown, the end cap 20 also includes:

[0112] The pin 24a at least partially extends or is inserted into the second space 55a to support the bracket 50a;

[0113] The extension wall 25a at least partially extends into the first space 56a and abuts against the bracket 50a to provide support.

[0114] After assembly, the extension wall 25a is arranged opposite to the porous body 30a in the first space 56a, and an atomization chamber is defined between the extension wall 25a and the porous body 30a.

[0115] The extension wall 25a is provided with: a first Tesla valve channel 261a and a second Tesla valve channel 262a extending from the outer surface facing away from the porous body 30a to the upper end surface; wherein the first Tesla valve channel 261a and the second Tesla valve channel 262a are arranged in a mirror-symmetrical manner; and the first Tesla valve channel 261a includes a first end 2611a and a second end 2612a opposite to each other; and the second Tesla valve channel 262a includes a third end 2621a and a fourth section 2622a opposite to each other.

[0116] The first end 2611a of the first Tesla valve channel 261a and the third end 2621a of the second Tesla valve channel 262a are located on the upper end surface of the extension wall 25a and are arranged at intervals; the second end 2612a of the first Tesla valve channel 261a and the fourth end 2622a of the second Tesla valve channel 262a are located on the outer side surface of the extension wall 25a and are connected or communicated.

[0117] The extension wall 25a is provided with:

[0118] a connecting channel 263a for connecting the second end 2612a of the first Tesla valve channel 261a and the fourth end 2622a of the second Tesla valve channel 262a to the air hole 27a;

[0119] The pores 27a extend from the inner surface facing the porous body 30a to the outer surface facing away from the porous body 30a.

[0120] Accordingly, the bracket 50a is provided with:

[0121] A first through hole 53a, opposite to the first end 2611a of the first Tesla valve passage 261a;

[0122] A second through hole 54a, opposite to the third end 2621a of the second Tesla valve passage 262a;

[0123] Therefore, when the negative pressure in the liquid storage chamber 12a exceeds a threshold value during use, air flows in from the air hole 27a and the connecting channel 263a, and then enters the liquid storage chamber 12a through the first Tesla valve channel 261a and / or the second Tesla valve channel 262a to relieve the negative pressure in the liquid storage chamber 12a.

[0124] When the liquid matrix in the liquid storage chamber 12a enters the first Tesla valve channel 261a from the first perforation 53a, when it flows to the second end 2612a of the first Tesla valve channel 261a, it can form a backflow through the second Tesla valve channel 262a, which is beneficial for preventing the leakage of the liquid matrix. Similarly, the liquid matrix flowing out through the second Tesla valve channel 262a can also form a backflow through the first Tesla valve channel 261a.

[0125] 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 atomizer, characterized in that: include: A liquid storage chamber, used for storing a liquid matrix; a heating element for heating the liquid matrix to generate an aerosol; An air channel is used to provide a path for air to enter the liquid storage chamber; the air channel includes a first Tesla valve channel and a second Tesla valve channel, and when the liquid matrix of the liquid storage chamber flows out through one of the first Tesla valve channel and the second Tesla valve channel, the other provides a reflux path for the outflowing liquid matrix to flow back toward the liquid storage chamber.

2. The atomizer according to claim 1, characterized in that The first Tesla valve channel includes a first end communicating with the liquid storage chamber, and a second end facing away from the first end; the second Tesla valve channel includes a third end communicating with the liquid storage chamber, and a fourth end facing away from the third end; The second end of the first Tesla valve channel is communicated with the fourth end of the second Tesla valve channel.

3. The atomizer according to claim 2, characterized in that The first end of the first Tesla valve channel and the third end of the second Tesla valve channel are spaced apart from each other.

4. The atomizer according to any one of claims 1 to 3, characterized in that: The first Tesla valve channel and the second Tesla valve channel are arranged in mirror symmetry.

5. The atomizer according to claim 2 or 3, characterized in that: An air inlet of the air passage is defined between the second end and the fourth end.

6. The atomizer according to claim 2 or 3, characterized in that: Also includes: An arc-shaped connecting channel is used to provide a connection between the second end of the first Tesla valve channel and the fourth end of the second Tesla valve channel.

7. The atomizer according to any one of claims 1 to 3, characterized in that: The liquid storage cavity has an open opening; The atomizer also includes: A flexible sealing element, used to close the opening of the liquid storage chamber; a rigid support at least partially located inside the sealing element so as to support the sealing element from the inside of the sealing element; The air passage is defined between the sealing element and the bracket.

8. The atomizer according to claim 7, characterized in that The first Tesla valve channel and / or the second Tesla valve channel comprises a groove structure formed on the surface of the bracket.

9. The atomizer according to any one of claims 1 to 3, characterized in that: Also includes: a housing at least partially defining an outer surface of the atomizer; Flexible stent; a porous body, contained and held in the support; The porous body comprises a first surface and a second surface, the first surface is in fluid communication with the liquid storage chamber to absorb the liquid matrix, and the heating element is coupled to the second surface; A liquid channel is defined between the support and the shell, and the porous body is in fluid communication with the liquid storage chamber through the liquid channel.

10. The atomizer according to claim 9, characterized in that The outer surface of the bracket is provided with a groove extending in the longitudinal direction, and at least a part of the liquid channel is defined between the groove and the main shell; The support has a window adjacent to the groove; when the porous body is accommodated in the support, at least a portion of the first surface is exposed to the groove through the window.

11. The atomizer according to claim 9, characterized in that The housing comprises: A main housing having proximal and distal ends facing each other; an end cap coupled to the distal end; the bracket being at least partially located between the main housing and the end cap to provide a seal therebetween; The air passage is defined between the end cap and the bracket.

12. An electronic atomization device, characterized in that: The invention comprises the atomizer according to any one of claims 1 to 11, and a power supply mechanism for supplying power to the atomizer.

Images