WO2023045586A1 - Atomizer and aerosol-generating device - Google Patents

Abstract

Provided in the present utility model are an atomizer and an aerosol-generating device. The atomizer comprises a base, an e-liquid storage member and an atomization assembly, wherein a gas inlet is provided in the base, an e-liquid storage cavity is formed in the e-liquid storage member, the atomization assembly comprises a fixing seat and an atomization core, the atomization core is fitted in an atomization cavity, the atomization core heats and atomizes, when energized, an aerosol-forming substrate provided by the e-liquid storage cavity, and the aerosol generated after atomization is output under the driving of gas introduced via the gas inlet; and a gas return channel is configured and formed in the fixing seat, and the gas return channel communicates the gas inlet and the e-liquid storage cavity. In the atomizer of the present utility model, the gas return channel is configured and formed in the fixing seat, and after the aerosol-forming substrate in the e-liquid storage cavity is consumed, outside air can be supplemented by means of the gas return channel, so as to avoid the generation of negative pressure in the e-liquid storage cavity, achieve the smooth output of e-liquid, prevent dry burning of the atomization core, and improve the safety performance of the aerosol-generating device.

Description

Nebulizer and aerosol generating device technical field

The utility model belongs to the technical field of simulated smoking, and particularly relates to an atomizer and an aerosol generating device.

Background technique

The aerosol generating device usually includes an atomizer and a power supply device electrically connected to the atomizer. The atomizer can heat and atomize the gas stored in the liquid storage chamber of the atomizer under the electric drive of the power supply device. The sol forms a matrix for the user to inhale.

At present, when the aerosol generating device is in use, because the aerosol-forming substrate in the liquid storage chamber is continuously consumed by the atomizing core (for example, a ceramic core) of the nebulizer, a negative pressure is generated in the liquid storage chamber, resulting in insufficient liquid. smooth, which in turn leads to insufficient liquid supply to the atomizing core and dry burning occurs. After the atomizing core is dry-burned, it will not only produce bad smell, but also affect the safe use of the aerosol generating device.

Utility model content

Based on the above-mentioned problems in the prior art, one of the purposes of the embodiments of the present invention is to provide an atomizer that prevents negative pressure in the liquid storage chamber from causing poor liquid discharge and improves the safety performance of the aerosol generating device.

In order to achieve the above purpose, the technical solution adopted by the utility model is: provide an atomizer for an aerosol generating device, the atomizer includes:

The base is provided with an air inlet;

A liquid storage part is fitted on the base, and a liquid storage cavity for storing aerosol-forming substrate is formed inside the liquid storage part; and

an atomizing assembly, fitted on the base, the atomizing assembly includes a fixing seat and an atomizing core, and an atomizing chamber communicating with the liquid storage chamber and the air inlet is formed in the fixing seat, The atomizing core is fitted in the atomizing chamber, and the atomizing core can heat and atomize the aerosol-forming substrate provided by the liquid storage chamber after being energized, and the smoke formed after atomizing The output is driven by the gas introduced by the gas port;

Wherein, an air return channel is formed on the fixed seat, and the air return channel communicates between the air inlet and the liquid storage chamber.

Further, the fixed seat includes a base and a liquid sealing member, the base is supported on the base, the base has an inner cavity configured to form the atomization chamber, and the outer wall of the base An air return groove is provided, and the liquid sealing member is set on the outside of the base, so that the inner wall of the liquid sealing member and the air return groove are enclosed to form the air return channel.

Further, the air return groove is arranged on the outer wall of the base and along the circumference of the base in a labyrinth structure.

Further, the top of the base is provided with a smoke outlet, and the outer wall of the base is also configured with a communication air passage, and the communication air passage is connected between the atomization chamber and the smoke outlet. .

Further, the air inlet end of the air return channel is connected to the lower end of the communicating air channel and the atomization chamber, and the air outlet end of the air return channel is in communication with the liquid storage chamber.

Further, the liquid sealing member is configured to form the bottom of the liquid storage chamber.

Further, the liquid sealing member is a liquid sealing silicone sleeved on the outside of the base.

Further, the base includes a bottom wall and a side wall formed by extending the outer edge of the bottom wall in the same direction, two bosses protrude from the opposite inner sides of the side wall, and the atomizer The assembly is supported on the two bosses; the atomizer also includes a liquid absorbing part, the liquid absorbing part is arranged between the two bosses, and the liquid absorbing part is located in the atomization assembly below.

Further, the atomization assembly also includes an atomization core seal, the atomization core is sleeved in the atomization core seal, and the atomization core and the atomization core seal are supported on two sides together. on the boss; the liquid sealing member is provided with a first liquid inlet hole, the base is provided with a second liquid inlet hole, and the atomizing core seal is provided with a third liquid inlet hole, The first liquid inlet hole, the second liquid inlet hole and the third liquid inlet hole communicate together to form a liquid inlet channel that guides the aerosol-forming substrate in the liquid storage cavity to the atomizing core.

Further, the base includes a bottom wall and a side wall formed by extending the outer edge of the bottom wall in the same direction, the bottom wall and the side wall jointly surround and form the cavity, and the base is at least partially housed in the cavity.

Further, the liquid sealing member includes a liquid sealing pad configured to form the bottom of the liquid storage chamber, and a liquid sealing sleeve formed by extending the outer edge of the liquid sealing pad toward the base, and the liquid sealing sleeve is set on the outside of the base, so that the inner wall of the liquid seal sleeve and the air return groove are enclosed to form the return air channel, and the base has a first end for supporting on the base , and the second end for supporting the liquid sealing pad and facing away from the base, the side of the liquid sealing pad facing the base is supported on the end surface of the second end, the liquid sealing pad faces the base A gas guide structure for delivering the gas introduced by the gas return channel to the liquid storage chamber is provided between one side of the second end and the end face of the second end, and the gas guide structure communicates with the gas return channel and the between the reservoirs.

Further, a protruding structure is protruded on the side of the liquid sealing pad facing the base, and the part of the protruding structure away from the liquid sealing pad bears against the end surface of the second end, so that the An air guide gap is formed between the liquid sealing pad and the base, and the air guide gap constitutes the air guide structure; or, a protruding structure is protruded on the end surface of the second end, and the protruding structure deviates from A part of the base is held against the side of the liquid sealing pad facing the base, so that an air guide gap is formed between the liquid sealing pad and the base, and the air guide gap constitutes the Air guide structure.

Further, the protruding structure includes at least one bump or post.

Further, the height of the bumps or the protrusions is 0.1-0.2 mm.

Further, one end of the protruding point or the protruding post for matching and resisting is arranged in a hemispherical shape; or, the end surface of the protruding point or the protruding post for cooperating and abutting is arranged in an outwardly convex arc noodle.

Further, the side of the liquid sealing pad facing the base is recessed with an air guide groove, and the side of the liquid sealing pad facing the base is attached to the end surface of the second end, so that the second end The end surface of the second end is surrounded by the air guide groove to form an air guide channel, and the air guide channel constitutes the air guide structure; or, the end surface of the second end is concavely provided with an air guide groove, and the liquid sealing pad faces the One side of the base is attached to the end surface of the second end, so that the side of the liquid sealing pad facing the base is surrounded by the air guide groove to form an air guide channel, and the air guide channel constitutes the air guide channel. air structure.

Further, the atomization assembly also includes an atomization core seal set on the atomization core, a first liquid inlet hole is opened on the liquid sealing pad, and a second liquid inlet hole is opened on the base , the atomizing core seal is provided with a third liquid inlet hole, and the first liquid inlet hole, the second liquid inlet hole and the third liquid inlet hole are connected together to form a drainage in the liquid storage cavity The aerosol-forming substrate flows to the liquid inlet channel of the atomizing core, and the first liquid inlet hole is connected between the air guide structure and the liquid storage chamber.

Based on the above-mentioned problems in the prior art, the second object of the embodiments of the present invention is to provide an aerosol generating device with an atomizer provided by any of the above solutions.

In order to achieve the above purpose, the technical solution adopted by the utility model is to provide an aerosol generating device, including the atomizer provided by any one of the above solutions.

Compared with the prior art, the above one or more technical solutions in the embodiment of the utility model have at least one of the following beneficial effects:

In the atomizer and the aerosol generating device in the embodiment of the present utility model, the atomizer is constructed with a return air passage on the fixing seat, so that after the aerosol-forming matrix in the liquid storage chamber is consumed, the return air can The channel fills the liquid storage cavity with outside air to balance the air pressure difference in the liquid storage cavity, thereby avoiding the formation of negative pressure in the liquid storage cavity, achieving smooth liquid discharge, and ensuring sufficient liquid supply to the atomizing core to prevent atomization The wick is dry-burned to improve the safety performance of the aerosol generating device.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the utility model, the following will briefly introduce the accompanying drawings that are required in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only the practical For some novel embodiments, those skilled in the art can also obtain other drawings based on these drawings without any creative work.

Fig. 1 is a schematic structural view of an atomizer in an embodiment of the utility model;

Fig. 2 is a partially exploded schematic diagram of the atomizer shown in Fig. 1;

Fig. 3 is an exploded view of the atomizer shown in Fig. 1;

Fig. 4 is a sectional view of the atomizer shown in Fig. 1;

Fig. 5 is a schematic diagram of the flow path of the airflow in the return air channel in the atomizer shown in Fig. 1;

Fig. 6 is a schematic diagram of the bottom of the atomizer shown in Fig. 1;

Fig. 7 is a cross-sectional view of the atomizer shown in Fig. 6 along the B-B direction;

Fig. 8 is a cross-sectional view of the atomizer shown in Fig. 6 along the direction A-A;

Fig. 9 is a schematic cross-sectional structure diagram of an atomizer provided by another embodiment of the present invention;

Fig. 10 is a partially enlarged structural schematic diagram in Fig. 9;

Fig. 11 is a partially exploded schematic diagram of a fixing seat provided by another embodiment of the present invention;

Fig. 12 is a schematic diagram of the three-dimensional structure of the liquid sealing member provided by another embodiment of the present invention;

Fig. 13 is a partially enlarged structural schematic diagram in Fig. 12;

Fig. 14 is a schematic diagram of the three-dimensional structure of the aerosol generating device provided by the embodiment of the present invention.

Wherein, each reference sign in the figure:

1-base; 11-air inlet; 12-bottom wall; 13-side wall; 14-boss;

2-liquid storage parts; 21-liquid storage cavity;

3-atomization assembly; 31-fixing seat; 311-atomization chamber; 312-air return channel; 313-base; 3131-exhaust hole; 3135-the second liquid inlet hole; 314-liquid sealing parts; 3141-liquid sealing pad; 3142-liquid sealing sleeve; 3143-first liquid inlet hole; Atomizing core seal; 331-the third liquid inlet hole;

4-liquid-absorbing part; 5-protruding structure; 6-adsorption magnet;

7-sealing ring; 8-electrode;

100-aerosol generating device; 10-atomizer; 20-power supply device.

Detailed ways

In order to make the technical problems, technical solutions and beneficial effects to be solved by the utility model clearer, the utility model is described in further detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

It should be noted that when an element is referred to as being “connected to” or “disposed on” another element, it may be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

In the description of the present utility model, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a flexible connection. Detachable connection, or integral connection; it can be mechanical connection or electrical connection; it can be direct connection or indirect connection through an intermediary, and it can be the internal communication of two components or the interaction relationship between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model according to specific situations.

It is to be understood that the terms "length", "width", "top", "bottom", "front", "rear", "left", "right", "vertical", "horizontal", "top" , "bottom", "inner", "outer" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying Any device or element must have a specific orientation, be constructed and operate in a specific orientation, and thus should not be construed as limiting the invention.

Reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, the phrases "in one embodiment," "in some embodiments," or "in some of these embodiments" appear in various places throughout the specification, not all referring to the same embodiments. Furthermore, the particular features, structures or characteristics may be combined in any suitable manner in one or more embodiments.

Please refer to Fig. 1, an embodiment of the utility model provides an aerosol generating device, the aerosol generating device 100 includes an atomizer 10 and a power supply device 20 electrically connected with the atomizer 10, when in use, the power supply device uses In order to provide electric energy to the atomizer 10, and then heat the aerosol-forming substrate stored in the atomizer 10, the aerosol-forming substrate is atomized under the action of heating to form smoke for the user to inhale.

Please refer to FIG. 2 , the atomizer 10 includes a base 1 , a liquid storage part 2 and an atomization assembly 3 . Among them, the base 1 is used to provide support for the installation of other parts of the atomizer 10, and the liquid storage part 2 is fitted on the base 1, and a liquid storage chamber 21 for storing the aerosol-forming substrate is formed therein (as shown in FIG. 4 ). shown), the atomizing assembly 3 is fitted on the base 1 and is located in the direction of gravity of the aerosol-forming substrate in the liquid storage chamber 21, and the aerosol-forming substrate in the liquid storage chamber 21 can flow into the atomizing assembly 3 after the power supply device Under the action of the electric energy provided by the atomizer 10, the atomizer is heated and atomized to form smoke, and the smoke is inhaled by the user's pumping action.

Referring to FIG. 3 and FIG. 4 , the base 1 includes a bottom wall 12 and a side wall 13 extending from the outer edge of the bottom wall 12 in the same direction. Wherein, the bottom wall 12 is provided with an air inlet 11 communicating with the outside world, which is used to provide the atomizing component 3 with outside cold air under the user's suction. Two bosses 14 protrude from the opposite inner sides of the side wall 13 , and the atomization assembly 3 is supported on the two bosses 14 .

Further, the atomizer 10 also includes an adsorption magnet 6 , which is fitted on the bottom wall 12 and at least partly exposed on the bottom surface of the bottom wall 12 for detachable cooperation between the atomizer 10 and the power supply device.

Still further, the base 1 also includes a sealing ring 7 for sealing the gap between the base 1 and the liquid storage element 2 .

The atomization assembly 3 includes a fixing seat 31 , an atomization core 32 and an atomization core seal 33 . An atomizing chamber 311 communicating with the liquid storage chamber 21 and the air inlet 11 is formed in the fixed seat 31, and the atomizing core 32 is set in the atomizing core seal 33, both of which are supported on the two bosses 14 and accommodated. placed in the atomization chamber 311.

Please refer to FIG. 3 and FIG. 5 together. The fixed base 31 is structured to form a return air channel 312. The return air channel 312 is connected between the air inlet 11 and the liquid storage chamber 21, so that the aerosol in the liquid storage chamber 21 forms a matrix. After consumption, outside air can be replenished through the air return channel 312 to balance the air pressure difference in the liquid storage chamber 21 and realize smooth liquid discharge, thereby ensuring sufficient liquid supply to the atomizing core 32 and preventing the atomizing core 32 from burning dry. The safety performance of the aerosol generating device 100 is improved.

Specifically, the fixing base 31 includes a base 313 and a liquid sealing member 314 . The base 313 is supported on the base 1 and its inner cavity is configured to form an atomizing chamber 311 . In this specific embodiment, specifically referring to FIG. 4 , the two bosses 14 are in the shape of two steps, and the base 313 is supported on the two steps of the two bosses 14 away from the bottom wall 12 . The atomizing core 32 is sleeved on the atomizing core seal 33 , both are supported on a step adjacent to the bottom wall 12 of the two bosses 14 , and are at least partially sleeved in the base 313 .

The base 313 is generally hollow and cylindrical, and an air return groove 315 is formed on the outer wall thereof. The liquid sealing member 314 is also generally in the shape of a hollow cylinder, which is sleeved on the outside of the base 313 and encloses the air return groove 315 to form the air return channel 312 . In this specific embodiment, the liquid-sealing member 314 is a liquid-sealing silica gel, which is set outside the base 313 and is configured to form the bottom of the liquid storage chamber 21, so as to prevent leakage of the aerosol matrix in the liquid storage chamber 21 and at the same time External air can be supplemented to balance the air pressure difference in the liquid storage chamber 21 to realize smooth liquid release.

Please refer to Figure 3, Figure 6 and Figure 7 together, the top of the base 313 is provided with a smoke outlet 3131, and the outer wall of the base 313 is also configured with a communicating air channel 3132, which communicates with the atomization chamber 311 and Between the smoke outlet holes 3131, the smoke generated by atomization can flow from the atomization chamber 311 to the smoke outlet hole 3131 under the action of the user's suction, for the user to inhale.

Please refer to Fig. 3 and Fig. 5 together, further, the inlet end I of the air return passage 312 is connected to the lower end of the communication air passage 3132 and the atomization chamber 311, and the air outlet O of the return air passage 312 is connected to the liquid storage chamber 21 connected, so that during the user's inhalation process, after the aerosol matrix is atomized under the heating of the atomizing core 32, the smoke flows to the user's oral cavity through the connecting air channel 3132 and the smoke outlet 3131. , can flow from the wall of the communicating air channel 3132 to the return air channel 312 under the action of gravity, and be absorbed and stored in the liquid storage chamber 21 through the return air channel 312, preventing users from sucking condensate and reducing the flow of condensate in the communicating air channel. The noise generated by the flow in the channel 3132 improves the user experience.

Please refer to Fig. 3 and Fig. 4 again, further, the return air groove 315 is arranged in a labyrinth along the circumference of the outer wall of the base 313, and the design of the labyrinth structure can effectively prevent the aerosol-forming matrix in the liquid storage chamber 21 from passing through the return air The channel 312 leaks to the outside, improving user experience.

The atomizer 10 also includes an electrode 8 which is fitted on the bottom wall 12 of the base 1 . The atomizing core seal 33 is generally in the shape of a hollow cylinder with an open lower end. The heating surface and the electrical connection surface of the atomizing core 32 are exposed through the atomizing core seal 33, and the electrical connection surface is electrically connected to the electrode 8. The electrical connection surface is used for Electrical power is supplied to the heating surface, which is used to generate the heat required to atomize the aerosol-forming substrate. In this specific embodiment, the atomizing core 32 is a porous ceramic core structure.

Please refer to Fig. 3, Fig. 6 and Fig. 8 together. Furthermore, the top of the liquid sealing member 314 is provided with a first liquid inlet hole 3143, and the base 313 is provided with a second liquid inlet hole 3135. The atomizing core sealing member 33 A third liquid inlet hole 331 is opened on the top. Wherein, the first liquid inlet hole 3143 , the second liquid inlet hole 3135 and the third liquid inlet hole 331 communicate together to form a liquid inlet channel that drains the aerosol-forming substrate in the liquid storage chamber 21 to the atomizing core 32 . During the inhalation process, the atomizing core 32 atomizes the aerosol-forming substrate provided by the liquid storage chamber 21, and the atomized smoke is driven by the gas introduced by the air inlet 11 and output to the user's mouth for inhalation.

Please refer to Fig. 3 and Fig. 4 again, further, the atomizer 10 includes a liquid absorbing part 4, which is arranged between two bosses 14 and below the atomizing assembly 3, for absorbing the Component 3 dripping condensate.

In the atomizer 10 provided by the above-mentioned embodiments of the present invention, the fixed seat 31 is structured to form a return air channel 312. After the aerosol-forming matrix in the liquid storage chamber 21 is consumed, the outside air can be replenished through the return air channel 312 to avoid Negative pressure is formed in the liquid storage chamber 21 to balance the air pressure difference in the liquid storage chamber 21, so as to realize smooth discharge of liquid, thereby ensuring sufficient liquid supply to the atomizing core 32, preventing dry burning of the atomizing core 32, and improving the efficiency of the aerosol generating device 100. safety performance.

Please refer to FIG. 9 to FIG. 11 in combination. In other embodiments of the present invention, the liquid sealing member 314 includes a liquid sealing pad 3141 and a liquid sealing sleeve 3142. The liquid sealing sleeve 3142 extends from the outer edge of the liquid sealing pad 3141 toward the base 1. Forming, when the liquid sealing sleeve 3142 is set on the base 313 , the liquid sealing pad 3141 can be configured to form the bottom of the liquid storage chamber 21 when supported on the base 313 . When the liquid seal sleeve 3142 is fitted on the outside of the base 313 , the inner wall 13 of the liquid seal sleeve 3142 and the air return groove 315 can be enclosed to form the air return channel 312 . Since the return air passage 312 is connected between the air inlet 11 and the liquid storage chamber 21, after the aerosol-forming substrate in the liquid storage chamber 21 is consumed, the outside air can be supplemented through the return air passage 312 to balance the liquid storage chamber The air pressure difference in 21 realizes smooth liquid injection, thereby ensuring sufficient liquid supply to the atomizing core 32 , preventing dry burning of the atomizing core 32 , and improving the safety performance of the aerosol generating device 100 . Moreover, the base 313 has an axial first end 3133 and a second end 3134, the first end 3133 of the base 313 is used to support on the base 1, and the second end 3134 of the base 313 is for the base 313 to face away from the base 1 The second end 3134 of the base 313 is used to support the liquid seal pad 3141 . By adopting the above structure, when the liquid sealing sleeve 3142 is set on the base 313, the side of the liquid sealing pad 3141 facing the base 1 is supported on the end surface of the second end 3134 of the base 313, and the side of the liquid sealing pad 3141 facing the base 1 An air guide structure is provided between one side and the end surface of the second end 3134 of the base 313 , and the air guide structure is connected between the return air channel 312 and the liquid storage chamber 21 . When the liquid sealing pad 3141 and the second end 3134 of the base 313 are in close contact, the gas introduced by the gas return channel 312 can be smoothly transported to the liquid storage chamber 21 through the air guiding structure, so as to balance the liquid storage chamber The air pressure difference within 21 can realize smooth and stable liquid release. In this way, on the one hand, it can effectively solve the problem of poor air return caused by the poor assembly consistency of the liquid sealing member 314 and the base 313; Deficiencies in the back air effect.

Please refer to Fig. 12 to Fig. 13 in combination. In some other embodiments of the present invention, the side of the liquid sealing pad 3141 facing the base 1 is protruded with a protruding structure 5, and the protruding structure 5 is against the part of the liquid sealing pad 3141. On the end surface of the second end 3134 of the base 313 , an air guide gap is formed between the liquid sealing pad 3141 and the base 313 , and the air guide gap constitutes the above air guide structure. By providing the above-mentioned protruding structure 5, the protruding structure 5 can be made to interfere with the end surface of the second end 3134 of the base 313, so that the part of the protruding structure 5 away from the liquid sealing pad 3141 is abutted against the second end of the base 313. On the end surface of the end 3134 , an air guide gap is formed between the liquid sealing pad 3141 and the base 313 , and the air guide gap constitutes an air guide structure communicating between the air return channel 312 and the liquid storage chamber 21 . In this way, when the liquid sealing pad 3141 is in close contact with the end surface of the second end 3134 of the base 313, the gas introduced by the air return channel 312 can be smoothly transported to the liquid storage chamber 21 through the air guide gap to balance the storage space. The air pressure difference in the liquid chamber 21 realizes smooth and stable liquid release.

In other embodiments of the present utility model, the end surface of the second end 3134 of the base 313 is protruded with a protruding structure 5, and the part of the protruding structure 5 away from the base 313 is against the part of the liquid sealing pad 3141 facing the base 1. On one side, an air guide gap is formed between the liquid sealing pad 3141 and the base 313, and the air guide gap constitutes an air guide structure. The arrangement of the above-mentioned protrusion structure 5 can make the protrusion structure 5 and the side of the liquid sealing pad 3141 facing the base 1 have an interference fit, so that the part of the protrusion structure 5 away from the base 313 is held against the liquid sealing pad 3141 facing the base 1 On one side, so that an air guide gap is formed between the liquid sealing pad 3141 and the base 313 , and the air guide gap constitutes an air guide structure communicating between the air return channel 312 and the liquid storage chamber 21 . In this way, when the liquid sealing pad 3141 is in close contact with the end surface of the second end 3134 of the base 313, the gas introduced by the air return channel 312 can be smoothly transported to the liquid storage chamber 21 through the air guide gap to balance the storage space. The air pressure difference in the liquid chamber 21 realizes smooth and stable liquid release.

Please refer to FIG. 12 to FIG. 13 . In other embodiments of the present invention, the protruding structure 5 includes at least one bump or post on the liquid sealing pad 3141 or the base 313 . The height is 0.1-0.2mm, so that the gas that is introduced into the gas return channel 312 can be smoothly and stably transported to the liquid storage chamber 21 to ensure the smoothness of the gas return, thereby ensuring The stability of the liquid. In order to prevent the bumps or posts from scratching the liquid seal pad 3141 or the base 313, the end of the bumps or posts can be used for matching and abutting in a hemispherical shape, or the bumps or posts can be used for matching The end face of the end that resists is set as an outwardly convex arc surface. In some specific embodiments of the present invention, the number of protrusions or protrusions is set to two. Of course, in some other specific embodiments of the present invention, the number of bumps or bosses can also be set to be multiple, and the plurality of bumps or bosses are arranged at intervals.

In other embodiments of the present utility model, the side of the liquid sealing pad 3141 facing the base 1 is concavely provided with an air guide groove, and the side of the liquid sealing pad 3141 facing the base 1 is attached to the end surface of the second end 3134, and the second end The end surface of 3134 and the air guide groove can be enclosed to form an air guide channel, and the air guide channel constitutes an air guide structure. The arrangement of the above-mentioned air-guiding groove can make the end surface of the second end 3134 of the base 313 and the air-guiding groove enclose when the side of the liquid sealing pad 3141 facing the base 1 is attached to the end surface of the second end 3134 of the base 313. Combined to form an air guide channel, the air guide channel constitutes an air guide structure connected between the return air channel 312 and the liquid storage chamber 21. In this way, when the liquid sealing pad 3141 is in close contact with the end surface of the second end 3134 of the base 313, the gas introduced by the air return channel 312 can be smoothly transported to the liquid storage chamber 21 through the air guide channel to balance the storage space. The air pressure difference in the liquid chamber 21 realizes smooth and stable liquid release.

In other embodiments of the present invention, the end surface of the second end 3134 of the base 313 is concavely provided with an air guide groove, and the side of the liquid sealing pad 3141 facing the base 1 is attached to the end surface of the second end 3134 of the base 313 , so that the side of the liquid sealing pad 3141 facing the base 1 is surrounded by the air guide groove to form an air guide channel, and the air guide channel constitutes the above-mentioned air guide structure. The setting of the above-mentioned air guiding groove can make the side of the liquid sealing pad 3141 facing the base 1 and the air guiding groove enclose when the side of the liquid sealing pad 3141 facing the base 1 is attached to the end surface of the second end 3134 of the base 313 An air guide channel is formed, and the air guide channel constitutes an air guide structure communicating between the return air channel 312 and the liquid storage chamber 21 . In this way, when the liquid sealing pad 3141 is in close contact with the end surface of the second end 3134 of the base 313, the gas introduced by the air return channel 312 can be smoothly transported to the liquid storage chamber 21 through the air guide channel to balance the storage space. The air pressure difference in the liquid chamber 21 realizes smooth and stable liquid release.

In some other embodiments of the present invention, the end surface of the second end 3134 of the base 313 is provided with a first groove, and the side of the liquid sealing pad 3141 facing the base 1 is provided with a first groove at a position corresponding to the first groove. Two grooves, when the side of the liquid sealing pad 3141 facing the base 1 is attached to the end surface of the second end 3134 of the base 313, the first groove on the base 313 and the second groove on the liquid sealing pad 3141 can be connected to each other. The grooves are enclosed to form an air guiding channel, and the air guiding channel constitutes an air guiding structure. In other embodiments of the present utility model, an air guide channel connected between the return air channel 312 and the liquid storage chamber 21 is correspondingly opened directly on the liquid sealing pad 3141 or the base 313, and the air guide channel constitutes the air guide channel. structure.

Please refer to Fig. 11 and Fig. 12 together. In some other embodiments of the present utility model, the atomization assembly 3 further includes an atomization core seal 33 set on the atomization core 32, and a first inlet is provided on the liquid sealing pad 3141. Liquid hole 3143, the second liquid inlet hole 3135 is opened on the base 313, the third liquid inlet hole 331 is opened on the atomizing core seal 33, the first liquid inlet hole 3143, the second liquid inlet hole 3135 and the third liquid inlet hole The liquid holes 331 are connected together to form a liquid inlet channel that drains the aerosol-forming substrate in the liquid storage chamber 21 to the atomizing core 32 , and the first liquid inlet hole 3143 is connected between the air guiding structure and the liquid storage chamber 21 . During the suction process, the aerosol-forming substrate in the liquid storage chamber 21 can flow to the atomizing core 32 through the liquid inlet channel, and the atomizing core 32 heats and atomizes the aerosol-forming substrate provided by the liquid storage chamber 21, and after atomization Driven by the gas introduced by the air inlet 11, the formed smoke is output to the user's oral cavity for inhalation. It can be understood that the atomizing core 32 may be but not limited to a porous ceramic core structure, the atomizing core seal 33 may be but not limited to sealing silicone, and the liquid sealing member 314 may be but not limited to liquid sealing silicone. When the liquid-sealing part 314 is a liquid-sealing silicone part, the liquid-sealing part 314 is a liquid-sealing silicone part integrally formed by a liquid-sealing pad 3141 and a liquid-sealing sleeve 3142 .

In other embodiments of the present utility model, the base 1 includes a bottom wall 12 and a side wall 13 formed by extending the outer edge of the bottom wall 12 in the same direction. The bottom wall 12 and the side wall 13 together form a cavity, and the fixing seat 31 The base 313 is at least partially accommodated in the cavity. Wherein, the bottom wall 12 of the base 1 is provided with an air inlet 11 that communicates the atomization chamber 311 with the outside world, and is used to provide the atomization component 3 with external cold air under the suction effect of the user. Two bosses 14 protrude from the opposite inner sides of the side wall 13 , and the atomization assembly 3 is supported on the two bosses 14 .

Please refer to Fig. 14, the embodiment of the utility model also provides an aerosol generating device, the aerosol generating device 100 provided by the embodiment of the utility model includes an atomizer 10 for atomizing the aerosol forming substrate and A power supply device 20 for supplying power to the atomizer 10, the atomizer 10 is the atomizer 10 provided in any of the above-mentioned embodiments, and the atomizer 10 starts to work under the electrical drive of the power supply device 20 of the aerosol generating device 100 . Since the aerosol generating device 100 provided in the embodiment of the present invention has all the technical features of the atomizer 10 provided in any of the above embodiments, it has the same technical effect as the above atomizer 10 .

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of protection of utility models.

Claims (18)

An atomizer for an aerosol generating device, characterized in that the atomizer comprises: The base is provided with an air inlet; A liquid storage part is fitted on the base, and a liquid storage cavity for storing aerosol-forming substrate is formed inside the liquid storage part; and an atomizing assembly, fitted on the base, the atomizing assembly includes a fixing seat and an atomizing core, and an atomizing chamber communicating with the liquid storage chamber and the air inlet is formed in the fixing seat, The atomizing core is fitted in the atomizing chamber, and the atomizing core can heat and atomize the aerosol-forming substrate provided by the liquid storage chamber after being energized, and the smoke formed after atomizing The output is driven by the gas introduced by the gas port; Wherein, an air return channel is formed on the fixed seat, and the air return channel communicates between the air inlet and the liquid storage chamber. The atomizer according to claim 1, wherein the fixed seat includes a base and a liquid sealing member, the base is supported on the base, and the base has a structure to form the atomization chamber The inner cavity of the base, an air return groove is opened on the outer wall of the base, and the liquid sealing member is set on the outside of the base, so that the inner wall of the liquid sealing member and the air return groove are enclosed The air return channel is formed. The atomizer according to claim 2, wherein the return air groove is arranged on the outer wall of the base and along the circumference of the base in a labyrinth structure. The atomizer according to claim 2, wherein a smoke outlet is opened on the top of the base, and a communication air passage is formed on the outer wall of the base, and the communication air passage communicates with the Between the atomization chamber and the smoke outlet. The atomizer according to claim 4, wherein the air inlet end of the air return channel is connected to the lower end of the communication air channel and the atomization chamber, and the air outlet end of the air return channel is connected to the lower end of the atomization chamber. The liquid storage cavity is connected. The atomizer according to claim 2, wherein the liquid sealing member is configured to form the bottom of the liquid storage chamber. The atomizer according to claim 2, wherein the liquid-sealing member is a liquid-sealing silica gel sleeved on the outside of the base. The atomizer according to claim 2, wherein the base includes a bottom wall and a side wall formed by extending the outer edge of the bottom wall in the same direction, and the opposite inner sides of the side wall are convex Two bosses are formed, and the atomization assembly is supported on the two bosses; the atomizer also includes a liquid-absorbing part, and the liquid-absorbing part is arranged between the two bosses, And the liquid absorbing part is located below the atomizing component. The atomizer according to claim 8, wherein the atomization assembly further comprises an atomization core seal, the atomization core is sleeved in the atomization core seal, and the atomization core Together with the atomizing core seal, it is supported on the two bosses; a first liquid inlet hole is opened on the liquid sealing member, a second liquid inlet hole is opened on the base, and the atomizer A third liquid inlet hole is opened on the core seal, and the first liquid inlet hole, the second liquid inlet hole and the third liquid inlet hole communicate together to form a flow direction of the aerosol-forming substrate in the liquid storage cavity. The liquid inlet channel of the atomizing core. The atomizer according to any one of claims 2 to 7, wherein the base includes a bottom wall and a side wall formed by extending the outer edge of the bottom wall in the same direction, and the bottom wall and the bottom wall are The side walls jointly surround and form a cavity, and the base is at least partially accommodated in the cavity. The atomizer according to any one of claims 2 to 8, wherein the liquid sealing member includes a liquid sealing pad configured to form the bottom of the liquid storage cavity, and the liquid sealing pad a liquid seal sleeve formed by extending the outer edge toward the base, the liquid seal sleeve is fitted on the outside of the base, so that the inner wall of the liquid seal sleeve and the air return groove are enclosed to form the air return channel, The base has a first end for supporting on the base, and a second end for supporting the liquid sealing pad and facing away from the base, the side of the liquid sealing pad facing the base is supported on On the end surface of the second end, between the side of the liquid sealing pad facing the base and the end surface of the second end, there is a gas guide for delivering the gas introduced by the air return channel to the liquid storage chamber. structure, the air guiding structure communicates between the air return channel and the liquid storage chamber. The atomizer according to claim 11, wherein a protruding structure is protruded on the side of the liquid sealing pad facing the base, and the part of the protruding structure facing away from the liquid sealing pad bears against the The end surface of the second end is such that an air guide gap is formed between the liquid sealing pad and the base, and the air guide gap constitutes the air guide structure; or, the end surface of the second end is convex A protruding structure is provided, and the part of the protruding structure away from the base bears against the side of the liquid sealing pad facing the base, so that a gap is formed between the liquid sealing pad and the base. An air guiding gap, the air guiding gap constitutes the air guiding structure. The atomizer according to claim 12, wherein the protruding structure comprises at least one bump or post. The atomizer according to claim 13, characterized in that, the height of the protrusions or the protrusions is 0.1-0.2 mm. The atomizer according to claim 13, characterized in that, one end of the protruding point or the protruding post used for matching and abutting is arranged in a hemispherical shape; or, the protruding point or the protruding post is used for matching The end face of the end that resists is set as an outwardly convex arc surface. The atomizer according to claim 11, wherein an air guide groove is recessed on the side of the liquid sealing pad facing the base, and the side of the liquid sealing pad facing the base is attached to the The end face of the second end, so that the end face of the second end and the air guide groove are surrounded to form an air guide channel, and the air guide channel constitutes the air guide structure; or, the end face of the second end is recessed There is an air guide groove, and the side of the liquid sealing pad facing the base is attached to the end surface of the second end, so that the side of the liquid sealing pad facing the base is surrounded by the air guide groove to form a guide An air channel, the air guide channel constitutes the air guide structure. The atomizer according to claim 11, wherein the atomization assembly further comprises an atomization core seal set on the atomization core, and a first liquid inlet hole is opened on the liquid sealing pad, A second liquid inlet hole is opened on the base, a third liquid inlet hole is opened on the atomizing core seal, the first liquid inlet hole, the second liquid inlet hole and the third liquid inlet hole The liquid holes communicate together to form a liquid inlet channel that drains the aerosol-forming substrate in the liquid storage chamber to the atomizing core, and the first liquid inlet hole is connected between the air guiding structure and the liquid storage chamber. An aerosol generating device, characterized by comprising the atomizer according to any one of claims 1-17.

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