Atomizer and aerosol-generating device

Abstract

The utility model relates to an atomizer and an aerosol generating device, and the atomizer comprises a first liquid storage bin which is used for storing a liquid matrix; a liquid channel is established between the second liquid storage bin and the first liquid storage bin, so that the liquid matrix in the first liquid storage bin can be supplemented to the second liquid storage bin; the atomizing assembly is used for atomizing the liquid matrix from the second liquid storage bin to generate aerosol; the opening and closing mechanism comprises a driving part and a blocking element capable of being pushed by the driving part, and the blocking element is used for closing or opening the liquid channel; wherein the driving part comprises a memory alloy spring formed by an inner spiral spring and an outer spiral spring which are coaxially arranged, when the memory alloy spring is not electrified, the blocking element closes the liquid channel, and when the memory alloy spring is electrified, the memory alloy spring drives the blocking element to move so as to open the liquid channel. According to the atomizer, the internal and external spiral memory alloy springs are adopted, so that miniaturization of the atomizer is facilitated, and the reliability of supplementing the liquid matrix by the atomizer is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of aerosol generation, in particular to an atomizer and an aerosol generating device. BACKGROUND

[0002] In one prior art example, there is an atomizer comprising a first liquid storage, a second liquid storage, an atomization assembly and an opening and closing mechanism, wherein the second liquid storage is established with a liquid channel with the first liquid storage, liquid substrate in the first liquid storage can be supplemented to the second liquid storage, the atomization assembly is used for atomizing the liquid substrate originating from the second liquid storage to generate aerosol, and the opening and closing mechanism comprises a memory alloy spring with a single helix structure, which closes the liquid channel when the memory alloy spring is not powered, and opens the liquid channel when the memory alloy spring is powered.

[0003] However, in the case of achieving the same phase change force, the volume of the memory alloy spring with a single helix structure needs to be larger, which is not conducive to the miniaturization of the atomizer; at the same time, the memory alloy spring with a single helix structure has a simple structure and is prone to tilting or twisting, which may cause jamming in the process of closing or opening the liquid channel, thereby reducing the reliability of the atomizer in supplementing the liquid substrate. CONTENT OF THE UTILITY MODEL

[0004] The purpose of the present application is to provide an atomizer and an aerosol generating device, which can be conducive to the miniaturization of the atomizer and improve the reliability of the atomizer in supplementing the liquid substrate.

[0005] At least one embodiment of the present application provides an atomizer, which comprises:

[0006] a first liquid storage for storing liquid substrate;

[0007] a second liquid storage established with a liquid channel with the first liquid storage, so that the liquid substrate in the first liquid storage can be supplemented to the second liquid storage;

[0008] an atomization assembly for atomizing the liquid substrate originating from the second liquid storage to generate aerosol;

[0009] an opening and closing mechanism comprising a driving member and a blocking element which can be pushed by the driving member, the blocking element being used for closing or opening the liquid channel;

[0010] wherein the driving member comprises a memory alloy spring formed by coaxially arranged inner and outer helical springs, when the memory alloy spring is not powered, the blocking element closes the liquid channel, and when the memory alloy spring is powered, the memory alloy spring drives the blocking element to move and thereby opens the liquid channel.

[0011] As an example, a first liquid storage container support defining the second liquid storage container is further included, and the memory alloy spring is arranged in a corresponding spring fixing seat of the first liquid storage container support.

[0012] As an example, the two ends of the outer spiral spring respectively have a first planar support spring segment and a second planar support spring segment, and the inner spiral spring has a third planar support spring segment on the same side as the second planar support spring segment.

[0013] As an example, the second planar support spring segment and the third planar support spring segment of the memory alloy spring are both abutted to the bottom surface of the corresponding spring fixing seat.

[0014] As an example, the first planar support spring segment includes a first outer ring spring segment and a second outer ring spring segment, and the second outer ring spring segment is used for transitionally connecting the first outer ring spring segment and the inner spiral spring.

[0015] As an example, the central angles of the first outer ring spring segment, the second outer ring spring segment, the second planar support spring segment and the third planar support spring segment are all 180 degrees.

[0016] As an example, the outer spiral spring includes a first pin connected with the second planar support spring segment and extending away from the side of the second planar support spring segment.

[0017] The inner spiral spring includes a second pin connected with the third planar support spring segment and extending in the same direction as the first pin away from the side of the third planar support spring segment, and the first pin and the second pin are used for accessing current.

[0018] As an example, the spring fixing seat is further provided with a lead hole for passing through the first pin and the second pin.

[0019] As an example, the free height of the memory alloy spring is greater than the vertical distance from the bottom surface of the spring fixing seat to the top of the first liquid storage container support.

[0020] As an example, a protruding part is arranged around the central axis of the spring fixing seat, the fixed end of the protruding part is combined with the bottom surface of the spring fixing seat, the free end of the protruding part extends towards the opening end of the spring fixing seat, and the height of the protruding part is less than the height of the spring fixing seat.

[0021] The inner spiral spring is sleeved on the outer side wall of the protruding part, and the side surface of the spring fixing seat is used for limiting the outer spiral spring.

[0022] As an example, the second liquid storage holder defining the first liquid storage further comprises a first oil outlet hole;

[0023] The blocking element comprises a blocking body and a gate switch connected by a connecting arm, the gate switch corresponds to the spring fixing seat, the blocking body, the gate switch and the connecting arm define an oil passing channel;

[0024] The gate switch comprises a ball and a sealing platform fixed to one end of the ball, the other end of the ball is clamped in the inner coil spring, and the sealing platform is used to seal the first oil outlet hole, thereby closing the liquid channel.

[0025] As an example, the spring fixing seat is further provided with a second oil outlet hole, and the protruding part comprises at least two protruding blocks arranged around the second oil outlet hole and not completely blocking the second oil outlet hole.

[0026] As an example, the shapes of the at least two protruding blocks are all fan-shaped, and the inner coil spring is sleeved on the outer side wall of the at least two fan-shaped protruding blocks.

[0027] As an example, when the memory alloy spring is powered, the ball is driven to move to the top end of the protruding part.

[0028] As an example, the first plane spring section of the memory alloy spring abuts against the flange formed by the sealing platform and the ball.

[0029] As an example, the diameter of the ball is greater than the diameter of the inner coil spring.

[0030] As an example, the memory alloy spring adopts a titanium-nickel shape memory alloy material.

[0031] At least one embodiment of the present application provides an aerosol generating device, which comprises a power supply body and an atomizer as described in any embodiment of the present application, a control circuit of the power supply body is electrically connected with the driving piece and is configured to control whether the driving piece is powered.

[0032] The atomizer and the aerosol generating device provided by the above embodiments include a first liquid storage compartment for storing liquid substrate, a second liquid storage compartment, a liquid channel is established between the first liquid storage compartment and the second liquid storage compartment, so that the liquid substrate in the first liquid storage compartment can be supplemented to the second liquid storage compartment, an atomization assembly for atomizing the liquid substrate from the second liquid storage compartment to generate aerosol, and an opening and closing mechanism including a driving member and a blocking element that can be pushed by the driving member, the blocking element being used to close or open the liquid channel. By arranging the driving member to include a memory alloy spring formed by coaxially arranging an inner spiral spring and an outer spiral spring, when the memory alloy spring is not powered, the blocking element closes the liquid channel, and when the memory alloy spring is powered, the memory alloy spring drives the blocking element to move to open the liquid channel, thereby facilitating the miniaturization of the atomizer and improving the reliability of the atomizer in supplementing the liquid substrate. BRIEF DESCRIPTION OF DRAWINGS

[0033] In order to more clearly illustrate the technical solutions of the specific embodiments of the present application or the prior art, the drawings needed for use in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.

[0034] Figure 1 is a cross-sectional view of the atomizer from one perspective according to some embodiments of the present application;

[0035] Figure 2 is a cross-sectional view of the atomizer from another perspective according to some embodiments of the present application; Figure 1 is a partial enlarged view of the portion indicated by reference numeral A of

[0036] Figure 3 is a cross-sectional view of the atomizer from another perspective according to some embodiments of the present application;

[0037] Figure 4 is a cross-sectional view of the atomizer according to some embodiments of the present application;

[0038] Figure 5 is a partial enlarged view of the portion indicated by reference numeral B of Figure 4

[0039] Figure 6 is a structural view of the driving member from one perspective according to some embodiments of the present application;

[0040] Figure 7 is a structural view of the driving member from another perspective according to some embodiments of the present application;

[0041] Figure 8 is a cross-sectional view of the blocking element according to some embodiments of the present application;

[0042] ​Figure 9 is a structural schematic diagram of a first liquid storage cartridge support provided by some embodiments of the present application;

[0043] Figure 10 is a structural schematic diagram of a second liquid storage cartridge support provided by some embodiments of the present application;

[0044] Figure 11 is a cross-sectional schematic diagram of an aerosol-generating device provided by some embodiments of the present application;

[0045] in the figure:

[0046] 100, aerosol-generating device; 101, mouthpiece; 102, airflow channel; 103, tubular element; 1031, perforation;

[0047] 10, atomizer;

[0048] 1, first liquid storage cartridge;

[0049] 2, second liquid storage cartridge; 21, oil storage element;

[0050] 3, atomization assembly; 31, heating element; 32, liquid guide element; 33, pin fixing seat; 311, heating portion; 312, heating pin; 3111, side opening; 3121, first heating pin; 3122, second heating pin;

[0051] 4, opening and closing mechanism; 41, driving piece (memory alloy spring); 42, blocking element; 411, inner spiral spring; 412, outer spiral spring; 4111, third planar support spring segment; 4112, second pin; 4121, first planar support spring segment; 4122, second planar support spring segment; 4123, first pin; 4121a, first outer ring spring segment; 4121b, second outer ring spring segment; 421, blocking body; 422, gate switch; 423, connecting arm; 4220, flange; 4221, bouncing ball; 4222, sealing platform; 401, oil passage; 402, first center through hole;

[0052] 5, first liquid storage cartridge support; 51, spring fixing seat; 511, protruding portion; 512, lead hole; 513, second oil outlet hole; 510, bottom surface; 520, side surface; 530, guide inclined surface; 5111, protruding block; 501, second center through hole;

[0053] 6, second liquid storage cartridge support; 61, first oil outlet hole; 601, third center through hole;

[0054] 7, liquid storage cartridge sealing element;

[0055] 20, power supply body;

[0056] 201, housing; 202, battery cell; 203, circuit board; 204, battery cell seal; 205, charging interface; 2011, receiving cavity; 2031, electrical contact. DETAILED DESCRIPTION

[0057] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0058] The terms "first", "second", "third" in the present application are only for descriptive purpose, and cannot be understood as indicating or implying relative importance or implicitly indicating the number or order of the indicated technical features. All directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative position relationship or movement condition between components, and if the specific posture changes, the directional indications also change accordingly. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device including a series of steps or units is not limited to the listed steps or units, but can optionally include steps or units not listed, or can optionally include other steps or units inherent to the process, method, product or device.

[0059] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase that the phrase in various places in the specification are not necessarily all referring to the same embodiment, or are necessarily referring to different or alternative embodiments. It is explicitly contemplated that embodiments described herein can be combined with each other.

[0060] It should be noted that when an element is referred to as being "on" another element, it can be directly on the other element or intervening elements can also be present. When an element is referred to as being "connected" to or "coupled" to another element, it can be directly connected to the other element or intervening elements can also be present. The terms "vertical", "horizontal", "left", "right" and similar expressions as used herein are for illustrative purposes only and are not meant to be limiting.

[0061] Reference will now be made to Figures 1 to 5The application provides an embodiment of an atomizer 10, which comprises a first liquid storage bin 1 for storing a liquid substrate; a second liquid storage bin 2, which is connected with the first liquid storage bin 1 to form a liquid channel, so that the liquid substrate in the first liquid storage bin 1 can be supplemented to the second liquid storage bin 2; an atomization assembly 3 for atomizing the liquid substrate from the second liquid storage bin 2 to generate an aerosol; and an opening and closing mechanism 4, which comprises a driving member 41 and a blocking element 42 that can be pushed by the driving member 41, and the blocking element 42 is used to close or open the liquid channel; wherein the driving member 41 comprises a memory alloy spring formed by coaxially arranging an inner spiral spring 411 and an outer spiral spring 412, when the memory alloy spring is not powered, the blocking element 42 closes the liquid channel, and when the memory alloy spring is powered, the memory alloy spring drives the blocking element 42 to move to open the liquid channel.

[0062] On the one hand, compared with a memory alloy spring of a single spiral structure with the same volume, the memory alloy spring formed by coaxially arranging the inner spiral spring 411 and the outer spiral spring 412 can provide a greater phase change tension. In other words, if the same phase change tension is to be provided, the volume of the memory alloy spring comprising the inner spiral spring 411 and the outer spiral spring 412 can be smaller, thereby facilitating the product miniaturization of the atomizer 10.

[0063] On the other hand, the memory alloy spring structure formed by coaxially arranging the inner spiral spring 411 and the outer spiral spring 412 is compact and has better stability, and is not easy to lose stability under the action of the phase change tension, so that it drives the blocking element 42 to move more smoothly to close or open the liquid channel, thereby improving the reliability of the atomizer 10 in supplementing the liquid substrate.

[0064] In the embodiment of the application, the memory alloy spring adopts a titanium-nickel shape memory alloy material.

[0065] The titanium-nickel shape memory alloy material has good memory effect, electrical conductivity and biocompatibility; also has super-elasticity characteristics, high mechanical properties and good damping characteristics; and also has excellent wear resistance and corrosion resistance.

[0066] Since the titanium-nickel shape memory alloy material has good electrical conductivity, when an electric current passes through the memory alloy spring, the memory alloy spring generates Joule heat effect, thereby causing the memory alloy spring to warm up; and the resistivity of the memory alloy spring has a good linear relationship in the temperature rising stage, facilitating TCR (temperature coefficient of resistance) temperature control of the memory alloy spring. In some embodiments, a PID (Proportion Integration Differentiation) control algorithm can also be used to achieve accurate control of the temperature of the memory alloy spring, avoiding overheating or underheating.

[0067] The internal storage space of the first liquid storage bin 1 is used for storing liquid matrix. The capacity of the first liquid storage bin 1 is greater than that of the second liquid storage bin 2. For example, the capacity of the first liquid storage bin 1 is 5 times that of the second liquid storage bin 2, and when the capacity of the second liquid storage bin 2 is 2 ml, the capacity of the first liquid storage bin 1 is 10 ml.

[0068] As an example, the first liquid storage bin 1 and the second liquid storage bin 2 are axially connected, and when the liquid channel is closed, the liquid matrix in the first liquid storage bin 1 is prohibited from being supplemented to the second liquid storage bin 2; when the liquid channel is opened, the liquid matrix in the first liquid storage bin 1 is supplemented to the second liquid storage bin 2 from top to bottom through the liquid channel. It can be understood that, under the premise that the second liquid storage bin 2 and the first liquid storage bin 1 establish a liquid channel and the liquid matrix in the first liquid storage bin 1 can be supplemented to the second liquid storage bin 2, the first liquid storage bin 1 and the second liquid storage bin 2 can also be transversely connected or connected in other possible ways.

[0069] The second liquid storage bin 2 is provided with an oil storage element 21 for storing liquid matrix.

[0070] The atomizer 10 is also provided with a tubular element 103 extending along the longitudinal direction of the atomizer 10; the tubular element 103 is at least partially arranged to extend in the second liquid storage bin 2. The tubular element 103 is an independent component, which is preferably made of a relatively thin rigid material; the tubular element 103 is a conductor, for example, the tubular element 103 is made of stainless steel or aluminum alloy, etc.

[0071] The tubular element 103 contains and is assembled with an atomization assembly 3 for sucking liquid matrix from the second liquid storage bin 2 and heating and atomizing the liquid matrix. A plurality of perforations 1031 are arranged on the wall of the tubular element 103; in some embodiments, the plurality of perforations 1031 are arranged at intervals along the circumference of the tubular element 103, so that in use, the atomization assembly 3 communicates with the second liquid storage bin 2 through the plurality of perforations 1031 to receive the liquid matrix.

[0072] The atomization assembly 3 comprises a heating element 31, a liquid guide element 32, and a pin fixing seat 33. The liquid guide element 32 is configured to absorb or receive the liquid substrate from the second liquid storage 2, and the heating element 31 is configured to heat at least part of the liquid substrate in the liquid guide element 32 to generate an aerosol. Alternatively, the liquid guide element 32 is configured to transfer the liquid substrate between the second liquid storage 2 and the heating element 31.

[0073] The heating element 31 is configured to extend longitudinally along the outer shell 201 (as shown in Figure 11 ). The heating element 31 is coaxially arranged with the liquid guide element 32. In the embodiment of the present application, the heating element 31 is an electric resistance heating net, which is wound by a sheet material in a sheet or net shape.

[0074] In some embodiments, the heating element 31 is a cylindrical shape wound by a planar net precursor. Specifically, the heating element 31 is arranged in a cylindrical shape wound by a sheet material; the heating element 31 is non-closed in the circumferential direction and has a side opening 3111. The heating element 31 comprises a heating portion 311 and a heating pin 312. The heating pin 312 comprises a first heating pin 3121 and a second heating pin 3122, which are respectively located on both sides of the side opening 3111. In this embodiment, the heating portion 311 is an electric resistance heating portion. When the atomizer 10 is received in the outer shell 201 (as shown in Figure 11 ), the first heating pin 3121 and the second heating pin 3122 are respectively connected to the two electric contacts 2031 (as shown in Figure 11 ), so as to guide the electric current on the heating portion 311 of the heating element 31. The heating portion 311 extends between the first heating pin 3121 and the second heating pin 3122, and the heating portion 311 is substantially configured in a net shape with mesh holes.

[0075] In some embodiments, the mesh holes on the heating portion 311 are generally circular or polygonal in shape; or in yet some embodiments, the mesh holes can also be rectangular, polygonal, or irregular in shape, such as an elongated slit, etc.

[0076] In some embodiments, the liquid guiding element 32 is flexible; for example, the liquid guiding element 32 is made of a flexible fiber material such as cotton fiber, non-woven fabric, sponge, etc. The liquid guiding element 32 is coaxial with the tubular element 103 and is located inside the tubular element 103. Specifically, for example, the liquid guiding element 32 is a cylindrical fiber element wound from a sheet-like precursor including multiple layers of flexible fibers, and the density of the liquid guiding element 32 is greater than the density of the oil storage element 21, i.e., the liquid guiding element 32 has a stronger ability to absorb the liquid substrate and can effectively prevent the liquid substrate from leaking through the liquid guiding element 32 while facilitating the aerosol generating assembly 3 to generate more aerosol. Alternatively, in yet other variant embodiments, the liquid guiding element 32 is rigid; for example, the liquid guiding element 32 can include a rigid porous element, etc., such as porous ceramic or porous glass, etc.

[0077] In some embodiments, the outer side surface of the liquid guiding element 32 in the radial direction is blocked or communicates with the perforations 1031, and thus the outer side surface of the liquid guiding element 32 is configured as a liquid absorbing surface to receive and absorb the liquid substrate of the second liquid storage 2 through the perforations 1031. The inner side surface of the liquid guiding element 32 in the radial direction is configured as an atomizing surface that is combined / adhered / abuts with the heating element 31; and thus the liquid substrate is delivered to the atomizing surface and is heated by the heating element 31 to generate aerosol and be released.

[0078] In some embodiments, the tubular element 103 is provided with a cavity having opposite proximal and distal ends along the length direction, and the pin fixing seat 33 is fixedly connected to the distal end of the tubular element 103 and is at least partially accommodated inside the cavity of the tubular element 103. In some embodiments, the pin fixing seat 33 is provided with a plurality of positioning grooves, and a pin channel is defined between the plurality of positioning grooves and the inner wall surface of the tubular element 103, and portions of the first and second heating pins 3121 and 3122 are clamped between the respective positioning grooves and the inner wall surface of the tubular element 103 and pass out of the distal end of the tubular element 103 from the pin channel. In some variant embodiments, the side surface of the pin fixing seat 33 includes at least two abutting planes arranged in the circumferential direction, and a pin channel is defined between the at least two abutting planes and the inner wall surface of the tubular element 103, and portions of the first and second heating pins 3121 and 3122 are clamped between the respective abutting planes and the inner wall surface of the tubular element 103.

[0079] In some embodiments, the first heating pin 3121 and the second heating pin 3122 include a first section covered by the liquid guide element 32 and a second section avoiding the liquid guide element 32, at least part of the second section is outside the distal end of the tubular element 103 from the lead channel. In this embodiment, the distance between the second sections of the first heating pin 3121 and the second heating pin 3122 is greater than the distance between the first sections of the first heating pin 3121 and the second heating pin 3122. It should be noted that the second sections of the first heating pin 3121 and the second heating pin 3122 are fixed in the corresponding pin channels and are separated by a wide enough distance, on the one hand, to avoid short circuiting of the first heating pin 3121 and the second heating pin 3122, and on the other hand, the second section can provide a pulling force to the first section to bias to both sides, so that the heating part 311 is tightly attached to the surface of the liquid guide element 32, which is conducive to improving the taste of the aerosol generated by atomization.

[0080] The atomizer 10 further includes a first liquid storage compartment support 5 defining a second liquid storage compartment 2, and the memory alloy spring is arranged in a corresponding spring fixing seat 51 of the first liquid storage compartment support 5.

[0081] According to Figure 8 As shown, the spring fixing seat 51 includes a bottom surface 510, a side surface 520, and a guide inclined surface 530. In some embodiments, the guide inclined surface 530 is a circular arc transition between the upper surface of the first liquid storage compartment support 5 and the side surface 520, which can ensure smooth movement of the outer coil spring 412 during movement of the memory alloy spring driven blocking element 42, and can also ensure smoother flow of the liquid matrix during the process of supplementing the liquid matrix in the first liquid storage compartment 1 to the second liquid storage compartment 2 when the liquid channel is opened, and less vortex is generated.

[0082] The free height of the memory alloy spring is greater than the vertical distance from the bottom surface 510 of the spring fixing seat 51 to the top of the first liquid storage compartment support 5. Therefore, it can be ensured that when the memory alloy spring is not powered, the blocking element 42 can completely close the liquid channel.

[0083] Please refer to Figure 6 and Figure 7 The two ends of the outer coil spring 412 respectively have a first planar spring support section 4121 and a second planar spring support section 4122, and the inner coil spring 411 has a third planar spring support section 4111 located on the same side as the second planar spring support section 4122.

[0084] The first planar spring support section 4121 includes a first outer coil spring section 4121a and a second outer coil spring section 4121b, and the second outer coil spring section 4121b is used to transitionally connect the first outer coil spring section 4121a and the inner coil spring 411.

[0085] The central angles of the first outer ring spring segment 4121a, the second outer ring spring segment 4121b, the second planar support spring segment 4122, and the third planar support spring segment 4111 are all 180 degrees. That is, the first outer ring spring segment 4121a, the second outer ring spring segment 4121b, the second planar support spring segment 4122, and the third planar support spring segment 4111 are all semicircles, that is, the top of the outer coil spring 412 is supported by two semicircular arcs, and the bottom of the outer coil spring 412 and the inner coil spring 411 are both supported by a semicircular arc.

[0086] According to Figures 1 to 5 In the illustrated embodiment, the second planar support spring segment 4122 and the third planar support spring segment 4111 of the memory alloy spring abut the bottom surface 510 of the corresponding spring fixing seat 51.

[0087] By providing planar support spring segments at the top and bottom of the memory alloy spring, the stability of the memory alloy spring is further improved.

[0088] The outer coil spring 412 includes a first lead 4123 connected to the second planar support spring segment 4122 and extending away from the second planar support spring segment 4122, and the inner coil spring 411 includes a second lead 4112 connected to the third planar support spring segment 4111 and extending away from the third planar support spring segment 4111 in the same direction as the first lead 4123, the first lead 4123 and the second lead 4112 being used to access current.

[0089] The first lead 4123 and the second lead 4112 serve as electrical connection electrodes and are drawn from the same side of the memory alloy spring, that is, the first lead 4123 and the second lead 4112 are independent of each other with respect to the elongation and contraction of the memory alloy spring, so that the welding points or clamping positions of the first lead 4123 and the second lead 4112 do not change during the elongation and contraction of the memory alloy spring, thereby improving the electrical connection reliability of the first lead 4123 and the second lead 4112, and further improving the service life of the memory alloy spring.

[0090] Please refer to Figures 8 to 10 The spring fixing seat 51 is also provided with lead holes 512 for the first lead 4123 and the second lead 4112. The lead holes 512 have the function of fixing the first lead 4123 and the second lead 4112, further improving the electrical connection reliability of the first lead 4123 and the second lead 4112. In some embodiments, the edge of one of the lead holes 512 intersects the connecting line of the bottom surface 510 and the side surface 520, and the side surface 520 is provided with a positioning groove through which the first lead 4123 or the second lead 4112 can be positioned to pass through the lead hole 512.

[0091] The atomizer 10 further comprises a second liquid storage support 6 defining a first liquid storage 1, and the second liquid storage support 6 is provided with a first oil outlet hole 61.

[0092] The blocking element 42 comprises a blocking body 421 and a gate switch 422 connected by a connecting arm 423, the gate switch 422 corresponds to the spring fixing seat 51, and the blocking body 421, the gate switch 422 and the connecting arm 423 define an oil passing channel 401.

[0093] In some embodiments, the gate switch 422 is made of silica gel or other elastic materials, and is configured to close or open the liquid channel, so the number of the gate switch 422 is consistent with the number of the liquid channel. The connecting arm 423 is in the shape of an oblique line, a vortex spiral divergence or an “S” type curve, etc.; there are two or more connecting arms 423 between each gate switch 422 and the blocking body 421, and the gap between the blocking body 421, the gate switch 422 and the connecting arm 423 constitutes the oil passing channel 401.

[0094] In some embodiments, the gate switch 422 comprises a ball 4221 and a sealing platform 4222 fixed to one end of the ball 4221, the other end of the ball 4221 is clamped in the inner coil spring 411, and the sealing platform 4222 is used to seal the first oil outlet hole 61, thereby closing the liquid channel.

[0095] In the embodiments of the present application, the diameter of the ball 4221 is greater than the diameter of the inner coil spring 411.

[0096] When the ball 4221 is installed in the inner coil spring 411, the diameter of the ball 4221 is greater than the diameter of the inner coil spring 411, so that the blocking element 42 is clamped in the inner coil spring 411, thereby enabling the memory alloy spring to drive the blocking element 42 to move.

[0097] The first planar support spring segment 4121 of the memory alloy spring abuts against the flange 4220 formed by the sealing platform and the ball 4221.

[0098] The flange 4220 serves as a tightening surface of the memory alloy spring, cooperates with the first planar support spring segment 4121, bears the tightening force of the memory alloy spring, ensures the tightness of the gate switch 422 in closing the liquid channel, and avoids the liquid matrix from leaking from the first liquid storage 1 into the second liquid storage 2 when the liquid channel is closed.

[0099] A protrusion 511 is arranged around the central axis of the spring fixing seat 51, the fixed end of the protrusion 511 is combined with the bottom surface 510 of the spring fixing seat 51, the free end of the protrusion 511 extends towards the opening end of the spring fixing seat 51, and the height of the protrusion 511 is less than the height of the spring fixing seat 51.

[0100] When the shape memory alloy spring is energized, the drive ball 4221 is driven to move to the top end of the protruding portion 511. The height of the protruding portion 511 is determined by the opening degree of the gate switch 422 limited by the top end of the protruding portion 511, and the speed requirement of the liquid matrix supplementing to the second liquid storage 2 in the first liquid storage 1.

[0101] The inner coil spring 411 is sleeved on the outer side wall of the protruding portion 511, and the side surface 520 of the spring fixing seat 51 is used for limiting the outer coil spring 412.

[0102] The protruding portion 511 is used for fixing the inner coil spring 411, and the side surface 520 of the spring fixing seat 51 is used for fixing the outer coil spring 412. Therefore, by the cooperation of the protruding portion 511 and the side surface 520 of the spring fixing seat 51, the central axis of the inner coil spring 411 and the outer coil spring 412 can be prevented from deviating to cause the inner coil spring 411 and the outer coil spring 412 to directly contact, thereby affecting the normal work of the shape memory alloy spring.

[0103] The spring fixing seat 51 is also provided with a second oil outlet hole 513, and the protruding portion 511 includes at least two protruding blocks 5111 arranged around the second oil outlet hole 513 and not completely blocking the second oil outlet hole 513.

[0104] In addition to being used for fixing the inner coil spring 411, the protruding portion 511 is also provided with a gap with the second oil outlet hole 513 to form part of a liquid channel, so that the liquid matrix can supplement into the second liquid storage 2 through the gap between the protruding portion 511 and the second oil outlet hole 513.

[0105] In some embodiments, the shapes of the at least two protruding blocks 5111 are all fan-shaped, and the inner coil spring 411 is sleeved on the outer side wall of the at least two fan-shaped protruding blocks 5111. In some embodiments, the protruding portion 511 includes two oppositely arranged fan-shaped protruding blocks 5111, which are in a half-enclosed structure. The side surface of the fan-shaped protruding block 5111 close to the second oil outlet hole 513 is defined as the inner side wall of the fan-shaped protruding block 5111, and the side surface of the fan-shaped protruding block 5111 away from the second oil outlet hole 513 is defined as the outer side wall of the fan-shaped protruding block 5111. Since the outer side wall of the fan-shaped protruding block 5111 is arc-shaped, it is adapted to the inner coil spring 411, and the contact area of the outer side wall of the fan-shaped protruding block 5111 is large. When the inner coil spring 411 is sleeved on the outer side wall of the at least two fan-shaped protruding blocks 5111, the inner coil spring 411 is attached to / abuts against the outer side wall of the at least two fan-shaped protruding blocks 5111, thereby better fixing the inner coil spring 411.

[0106] Among them, the first center through hole 402 of the blocking element 42, the second center through hole 501 of the first liquid storage bracket 5, the third center through hole 601 of the second liquid storage bracket 6 and the tubular element 103 correspond to each other and jointly constitute part of the airflow channel 102 of the atomizer 10.

[0107] Please refer to Figure 1 and Figure 2 , a schematic diagram of the blocking element 42 closing the liquid passage. When the nebulizer 10 is not in use, the temperature of the memory alloy spring is below the phase transition temperature, so that the memory alloy spring is in the first state, at this time, the blocking element 42 seals the first oil outlet hole 61, thereby closing the liquid passage. Alternatively, when the memory alloy spring is switched from power-on to power-off, the temperature of the memory alloy spring cools rapidly to below the phase transition temperature, so that the memory alloy spring is elongated and in the first state, at this time, the blocking element 42 seals the first oil outlet hole 61, thereby closing the liquid passage.

[0108] Please refer to Figure 4 and Figure 5 , a schematic diagram of the blocking element 42 closing the liquid passage. When the memory alloy spring is powered on, the memory alloy spring is heated to above the phase transition temperature, so that the memory alloy spring is contracted and in the second state, driving the blocking element 42 to move downward, exposing the first oil outlet hole 61, thereby opening the liquid passage; wherein the spring length of the memory alloy spring in the first state is greater than the spring length of the memory alloy spring in the second state.

[0109] The path of the liquid matrix in the first liquid storage tank 1 to the second liquid storage tank 2 is shown in the direction of the arrow of Figure 5 , in order: the first liquid storage tank 1, the first oil outlet hole 61, the surface of the gate switch 422, the oil passage 401, the guide slope 530 of the spring fixing seat 51, the side surface 520 of the spring fixing seat 51, the bottom surface 510 of the spring fixing seat 51, the gap between the protruding part 511 of the spring fixing seat 51 and the second oil outlet hole 513, the second oil outlet hole 513, the oil storage element 21 of the second liquid storage tank 2.

[0110] In some embodiments, the nebulizer 10 further comprises a liquid storage tank sealing member 7 arranged between the first liquid storage tank 1 and the second liquid storage tank support 6, for preventing the liquid matrix stored in the first liquid storage tank 1 from leaking.

[0111] Please refer to Figure 11 , the present application provides an aerosol generating device 100, which comprises a power supply body 20 and a nebulizer 10 according to any one of the embodiments of the present application, and the control circuit of the power supply body 20 is electrically connected with the driving member 41 and is configured to control whether the driving member 41 is powered on.

[0112] In some variant embodiments, the atomizer 10 and the power supply body 20 are detachable relative to each other; the aerosol-generating device with such atomizer 10 and power supply body 20 being detachable relative to each other is, for example, a so-called "replaceable cartridge" aerosol-generating device. Or in yet some variant embodiments, the atomizer 10 and the power supply body 20 of the aerosol-generating device are fastened by the housing 201 of the aerosol-generating device and fixed so that the atomizer 10 and the power supply body 20 cannot be formed detachable relative to each other from inside the housing 201. The aerosol-generating device with such atomizer 10 and power supply body 20 being not detachable relative to each other is, for example, a so-called "integrated or disposable" aerosol-generating device.

[0113] In Figure 11 In the illustrated embodiment, the power supply body 20 has a housing 201 defining an outer surface of the atomizer 10, which is made of a rigid material such as ceramic, polymer plastic, etc.; in this embodiment, the housing 201 is substantially cylindrical; the housing 201 has a proximal end and a distal end opposite in the longitudinal direction; wherein according to the general use requirement, the proximal end is configured as the end for the user to inhale the aerosol, and a suction nozzle 101 for the user to inhale is arranged at the proximal end; while the distal end is the end combined with the power supply body 20, and the distal end of the housing 201 is open, and the open structure is used to install the necessary functional components inside the housing 201.

[0114] The housing 201 further has a gas flow channel 102 connected to the suction nozzle 101, which is used to provide an air flow path in the suction from the air inlet to the suction nozzle 101 via the atomization assembly 3, so as to output the aerosol to the suction nozzle 101. In some exemplary embodiments, the complete gas flow channel 102 is jointly defined by a plurality of components, at least including the atomization assembly 3, the first liquid storage cartridge support 5, the second liquid storage cartridge support 6, the liquid storage cartridge seal 7, and the first liquid storage cartridge 1.

[0115] In an optional embodiment, the housing 201 defines an internal space of the power supply body 20. The internal space of the power supply body 20 is divided in the length direction, at least a part of which is a containing cavity for receiving and accommodating the battery cell 202, and at least a part of which is a receiving cavity 2011 for receiving and accommodating at least a part of the atomizer 10.

[0116] The power supply body 20 further includes a battery cell 202 for power supply, which is arranged away from the receiving cavity 2011 in the length direction; and a circuit board 203 arranged in the containing cavity and located on the side away from the battery cell 202, the circuit board 203 being electrically connected with the battery cell 202, and the circuit board 203 being arranged with a control circuit, so that the circuit board is operable to guide the current between the battery cell 202 and the driving member 41, and further control whether the driving member 41 is powered on.

[0117] The power supply body 20 further comprises an electrical contact 2031 connected to the circuit board 203 by an electrical connection line, and when at least a part of the atomizer 10 is received and accommodated in the receiving cavity 2011, the power supply body 20 supplies power to the atomizer 10.

[0118] The power supply body 20 is provided with an electric core sealing member 204, and at least a part of the internal space of the power supply body 20 is divided into the above-mentioned receiving cavity 2011 by the electric core sealing member 204, for receiving and accommodating at least a part of the atomizer 10. Figure 11 In the exemplary embodiment shown, the electric core sealing member 204 is configured to extend in the cross-sectional direction of the power supply body 20, and is preferably made of a flexible material, thereby preventing the liquid substrate flowing from the atomizer 10 to the receiving cavity 2011 from flowing to the internal components such as the circuit board of the power supply body 20.

[0119] The power supply body 20 further comprises a charging interface 205 provided at the other end away from the receiving cavity 2011, for charging the electric core 202.

[0120] It should be noted that the specification and drawings of the present application give the preferred embodiments of the present application, but are not limited to the embodiments described in the specification, and further, those skilled in the art can make improvements or changes according to the above description, and all these improvements and changes shall belong to the protection scope of the claims of the present application.

Claims

1. An atomizer characterized by, The application relates to a liquid storage device, comprising: a first liquid storage bin for storing liquid matrix; a second liquid storage bin, which is connected with the first liquid storage bin through a liquid channel, so that the liquid matrix in the first liquid storage bin can be supplemented to the second liquid storage bin; an atomization assembly for atomizing the liquid matrix from the second liquid storage bin to generate aerosol; an opening and closing mechanism, which comprises a driving member and a blocking element that can be pushed by the driving member, and the blocking element is used for closing or opening the liquid channel; wherein the driving member comprises a memory alloy spring formed by coaxially arranging an inner spiral spring and an outer spiral spring, when the memory alloy spring is not electrified, the blocking element closes the liquid channel, and when the memory alloy spring is electrified, the memory alloy spring drives the blocking element to move so as to open the liquid channel.

2. The atomizer of claim 1, wherein, Further comprising a first liquid storage bin support defining the second liquid storage bin, and the memory alloy spring is arranged in a corresponding spring fixing seat of the first liquid storage bin support.

3. The atomizer of claim 2, wherein, Both ends of the outer spiral spring are respectively provided with a first planar support spring segment and a second planar support spring segment, and the inner spiral spring is provided with a third planar support spring segment on the same side of the second planar support spring segment.

4. The atomizer of claim 3, wherein, The second planar support spring segment and the third planar support spring segment of the memory alloy spring are both abutted against the bottom surface of the corresponding spring fixing seat.

5. The atomizer of claim 3, wherein, The first planar support spring segment comprises a first outer ring spring segment and a second outer ring spring segment, and the second outer ring spring segment is used for transitionally connecting the first outer ring spring segment and the inner spiral spring.

6. The atomizer of claim 5, wherein, The central angles of the first outer ring spring segment, the second outer ring spring segment, the second planar support spring segment and the third planar support spring segment are all 180 degrees.

7. The atomizer of claim 3, wherein, The outer spiral spring comprises a first pin connected with the second planar support spring segment and extending away from the second planar support spring segment; The inner spiral spring comprises a second pin connected with the third planar support spring segment and extending in the same direction as the first pin away from the third planar support spring segment, and the first pin and the second pin are used for connecting current.

8. The atomizer of claim 7, wherein, The spring fixing seat is further provided with a lead hole for the first pin and the second pin.

9. The atomizer of claim 2, wherein, The free height of the memory alloy spring is greater than the vertical distance from the bottom surface of the spring fixing seat to the top of the first liquid storage bin support.

10. The atomizer of claim 3, wherein, A protruding part is arranged around the central axis of the spring fixing seat, the fixed end of the protruding part is combined with the bottom surface of the spring fixing seat, the free end of the protruding part extends towards the opening end of the spring fixing seat, and the height of the protruding part is less than the height of the spring fixing seat; The inner spiral spring is sleeved on the outer side wall of the protruding part, and the side surface of the spring fixing seat is used for limiting the outer spiral spring.

11. The atomizer of claim 10, wherein, Further comprising a second liquid storage bin support defining the first liquid storage bin, and the second liquid storage bin support is provided with a first oil outlet hole; The blocking element comprises a blocking main body and a gate switch connected through a connecting arm, the gate switch corresponds to the spring fixing seat, and the blocking main body, the gate switch and the connecting arm define an oil passing channel. The gate switch comprises a ball and a sealing platform fixed to one end of the ball, the other end of the ball is clamped in the inner coil spring, and the sealing platform is used for sealing the first oil outlet hole, so as to close the liquid passage.

12. The atomizer of claim 11, wherein, The spring fixing seat is further provided with a second oil outlet hole, and the protruding part comprises at least two protruding blocks arranged around the second oil outlet hole and not completely blocking the second oil outlet hole.

13. The atomizer of claim 12, wherein, The shapes of the at least two protruding blocks are all fan-shaped, and the inner coil spring is sleeved on the outer side wall of the at least two fan-shaped protruding blocks.

14. The atomizer of any of claims 11-13, wherein, When the memory alloy spring is electrified, the ball is driven to move to the top end of the protruding part.

15. The atomizer of any of claims 11-13, wherein, The first planar supporting spring segment of the memory alloy spring abuts against the flange formed by the sealing platform and the ball.

16. The atomizer of claim 15, wherein, The diameter of the ball is greater than the diameter of the inner coil spring.

17. The atomizer of any of claims 1-13, wherein, The memory alloy spring adopts a titanium-nickel shape memory alloy material.

18. An aerosol-generating device comprising: The power supply body and the atomizer as claimed in any one of claims 1-17 are provided, a control circuit of the power supply body is electrically connected with the driving piece, and is configured to control whether the driving piece is electrified.

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