Power supply assembly and aerosol generating device

Abstract

Embodiments of the present application provide a power supply assembly and an aerosol-generating device. The power supply assembly is used in connection with an atomization assembly; the power supply assembly comprises a first housing, a main body support, an inductor support and an airflow inductor; the main body support is accommodated in the first housing and has a first accommodating cavity and an airflow through hole in communication with the first accommodating cavity and allowing airflow to pass through; the first accommodating cavity has opposite open ends and a closed end, a limiting ring is arranged at the end wall of the closed end, and the limiting ring extends towards the open end; the inductor support is at least partially inserted into the first accommodating cavity and abuts against the end face of the limiting ring away from the closed end; and the inductor support is formed with a mounting groove in communication with the airflow through hole; the airflow inductor is detachably arranged in the mounting groove and is used to detect the airflow change in the airflow through hole. The power supply assembly can effectively reduce the probability of the problem that the aerosol-generating substrate leaks through the airflow through hole to the airflow inductor and causes damage to the airflow inductor, and has high sensitivity.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electronic atomization, and in particular to a power supply assembly and an aerosol generating device. BACKGROUND

[0002] An aerosol generating device is a device for atomizing an aerosol generating substrate to form an aerosol for a user to inhale when powered; it is widely used in the technical fields of electronic cigarettes, medicine, beauty, etc.

[0003] The aerosol generating device generally comprises an atomization assembly and a power supply assembly. The atomization assembly is provided with a liquid storage cavity and an atomization core; the liquid storage cavity is used to store the aerosol generating substrate; the atomization core is used to atomize the aerosol generating substrate. The power supply assembly is provided with a battery and an airflow sensor; the battery is electrically connected with the atomization core and the airflow sensor, and is used to supply power to the atomization core and the airflow sensor. In the specific use process, when the user inhales through the mouthpiece of the atomization assembly, the airflow formed triggers the airflow sensor, and the airflow sensor controls the battery to supply power to the atomization core, so that the atomization core atomizes the aerosol generating substrate.

[0004] However, the existing aerosol generating device is prone to leakage of the stored aerosol generating substrate through the airway to the airflow sensor, causing damage to the airflow sensor. At the same time, the existing atomization assembly and power supply assembly are usually detachably connected; when the user inhales through the mouthpiece of the atomization assembly, the airflow formed comes not only from the airflow channel passing through the airflow sensor, but also from the gap between the atomization assembly and the power supply assembly; the larger the gap, the greater the airflow from the gap, so that the proportion of the airflow from the airflow channel passing through the airflow sensor is smaller, thereby greatly affecting the sensitivity of the airflow sensor. SUMMARY

[0005] The present application provides a power supply assembly and an aerosol generating device, aiming to solve the problem that the existing aerosol generating device is prone to leakage of the stored aerosol generating substrate through the airway to the airflow sensor, causing damage to the airflow sensor.

[0006] To solve the above technical problems, one technical scheme adopted by the present application is to provide a power supply assembly for connecting with an atomization assembly; the power supply assembly comprises a first housing, a main body support, an inductor support and an airflow inductor; wherein the main body support is accommodated in the first housing and has a first accommodating cavity and an airflow through hole for airflow communication; the first accommodating cavity has opposite open ends and a closed end, a limiting ring is arranged at the end wall of the closed end, and the limiting ring extends towards the open end; the inductor support is at least partially inserted into the first accommodating cavity and abuts against the end face of the limiting ring away from the closed end; and the inductor support is formed with a mounting groove in communication with the airflow through hole; the airflow inductor is detachably arranged in the mounting groove and is used for detecting airflow change in the airflow through hole.

[0007] Wherein, the inner wall surface of the limiting ring defines an air passage, and the outer wall surface of the limiting ring cooperates with the inner wall surface of the first accommodating cavity to define an air groove; wherein the air groove is in communication with the airflow through hole; the side wall of the limiting ring is formed with an air gap at the end face towards the open end; the air gap communicates the air groove and the air passage; wherein the mounting groove is in communication with the airflow through hole through the air passage, the air gap and the air groove in sequence.

[0008] Wherein, the power supply assembly further comprises a battery; the main body support further has a second accommodating cavity and an atomization groove; the battery is arranged in the second accommodating cavity; the atomization groove is located on the side of the first accommodating cavity away from the second accommodating cavity and is used for cooperating with the atomization assembly to form an atomization cavity to atomize aerosol generating substrate; and the airflow through hole is directly in communication with the atomization groove.

[0009] Wherein, the airflow through hole comprises a first air passage section and a second air passage section extending along the length direction of the main body support; the first air passage section is directly in communication with the atomization groove; the second air passage section is directly in communication with the air groove, and the second air passage section and the first air passage section are spaced apart in the orthogonal projection on the cross section of the main body support; the main body support further has an air inlet channel; the air inlet channel extends along the radial direction of the main body support and is in communication with one end of the first air passage section away from the atomization groove and one end of the second air passage section away from the air groove, respectively; and the second air passage section is in communication with the first air passage section through the air inlet channel.

[0010] Wherein, a liquid blocking protrusion is arranged in the air inlet channel; the liquid blocking protrusion is located between the air inlet of the first air passage section and the air outlet of the second air passage section.

[0011] The straight-line distance between the liquid blocking protrusion and the air inlet of the first air passage is greater than the straight-line distance between the liquid blocking protrusion and the air outlet of the second air passage; and the included angle between the side surface of the liquid blocking protrusion facing the second air passage and the airflow direction of the air inlet passage is greater than or equal to 30° and less than or equal to 80°.

[0012] The first shell is provided with an air inlet hole; the outer wall surface of the main body support is arranged in abutment with the inner wall surface of the first shell and cooperates to form an annular air groove, and the air inlet hole is communicated with the air inlet passage through the annular air groove.

[0013] The main body support further comprises a first connecting groove and a second connecting groove, and the first accommodating cavity is located between the first connecting groove and the second connecting groove; the inductor support comprises a base body portion, a first pin and a second pin, the base body portion covers the open end of the first accommodating cavity, the surface of the base body portion away from the first accommodating cavity forms the mounting groove, the first pin is connected in interference fit with the first connecting groove, and the second pin is connected in interference fit with the second connecting groove.

[0014] The portion of the base body portion inserted into the first accommodating cavity is connected in interference fit with the first accommodating cavity to seal the air passage groove.

[0015] The first shell is made of a light-transmitting material.

[0016] To solve the above technical problems, another technical solution adopted by the present application is to provide an aerosol generating device. The aerosol generating device comprises: a power supply assembly and an atomization assembly; wherein the power supply assembly is the power supply assembly involved above; the atomization assembly is connected with the power supply assembly and is used to atomize an aerosol generating substrate when powered on to form an aerosol.

[0017] The atomization assembly comprises a second shell, an atomization support, an atomization core and an electrode; the second shell is fixedly connected with the first shell; a first end of the atomization support is located in the second shell, a second end of the atomization support is connected with the main body support and cooperates with the atomization groove of the main body support to form an atomization cavity; the atomization core is installed in the atomization support and located in the atomization cavity; the electrode is fixed in the main body support and abuts against the atomization core.

[0018] The electrode comprises a conductive column portion and a blocking ring portion, a first end of the conductive column portion is connected with the main body support, a second end of the conductive column portion abuts against the atomization core; the blocking ring portion is arranged around the outer peripheral surface of the conductive column portion and connected with the conductive column portion; the atomization assembly further comprises an elastic pad; at least part of the elastic pad is located between the blocking ring portion and the main body support and elastically abuts against the blocking ring portion and the main body support.

[0019] The atomizing tank has a positioning groove at its bottom wall; the elastic pad includes a venting pipe and a pad block; the first end of the venting pipe is inserted into the positioning groove and communicates with the venting tank; the second end of the venting pipe is located in the atomizing tank to communicate with the venting tank and the atomizing tank; at least a portion of the pad block is located between the blocking ring and the main support and elastically abuts against the blocking ring and the main support.

[0020] The inner wall of the atomizing groove and the end of the atomizing bracket are provided with a fastening groove and a fastening hook, respectively, and the fastening hook is fastened to the fastening groove.

[0021] The beneficial effects of the embodiments of this application are as follows: Compared with the prior art, the power supply component provided in the embodiments of this application is used to connect with the atomizing component; the power supply component is provided with a first housing and a main support, and the main support is housed in the first housing. The main support has a first receiving cavity and an airflow hole communicating with the first receiving cavity and allowing airflow; the first receiving cavity has an open end and a closed end, and a limiting ring is provided on the end wall of the closed end, extending towards the open end. At the same time, by providing a sensor support and an airflow sensor, and making the airflow sensor detachably installed in the mounting groove of the sensor support, the airflow sensor can detect changes in airflow in the airflow hole; at the same time, at least a portion of the sensor support is inserted into the first receiving cavity and abuts against the end face of the limiting ring away from the closed end. The design incorporates several key features. First, the airflow sensor is detachably connected to its support, facilitating its recycling and making it more environmentally friendly. Second, a limiting ring is incorporated, with the sensor support resting against the ring's face away from the closed end. This design not only prevents the aerosol-generating matrix leaking into the first cavity from directly contacting the airflow sensor and causing damage, but also blocks any leakage, reducing the likelihood of the airflow sensor being affected by the leaked matrix and thus increasing its sensitivity. Furthermore, the limiting ring facilitates the drainage of any leaked aerosol-generating matrix through the airflow holes, preventing it from remaining within the first cavity. Attached Figure Description

[0022] Figure 1 A schematic diagram of the overall structure of an aerosol generating device provided in an embodiment of this application;

[0023] Figure 2 for Figure 1 Exploded view of the aerosol generation device shown;

[0024] Figure 3 for Figure 1 A cross-sectional view of the aerosol generating device shown from direction AA;

[0025] Figure 4a For Figure 1 B-B cross-sectional view of the aerosol generating device shown in FIG.

[0026] Figure 4b Structure diagram of the air inlet channel and the air flow through hole at the position of the liquid blocking protrusion;

[0027] Figure 5 Cross-sectional view of the inductor support and the main support after disassembly provided by an embodiment of the present application;

[0028] Figure 6a Projection view of the air inlet channel at the position of the liquid blocking protrusion on the vertical section of the air inlet channel provided by an embodiment of the present application;

[0029] Figure 6b Projection view of the air inlet channel at the position of the liquid blocking protrusion on the vertical section of the air inlet channel provided by another embodiment of the present application;

[0030] Figure 7 Cross-sectional view of the main support provided by an embodiment of the present application;

[0031] Figure 8 For Figure 1 Disassembly view of the aerosol generating device after hiding the first shell shown in FIG.

[0032] Figure 9 For Figure 3 Enlarged view of C in FIG. DETAILED DESCRIPTION

[0033] 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 those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0034] The terms "first", "second", "third", etc. in the present application are only for descriptive purpose and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second", "third" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise explicitly specified. 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, movement condition, etc. between the components in a certain posture (as shown in the drawings), and if the certain 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.

[0035] 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 in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily mutually exclusive or alternative embodiments. It is explicitly and implicitly understood that the embodiments described herein can be combined with other embodiments.

[0036] The present application will be described in detail below with reference to the accompanying drawings and embodiments.

[0037] Please refer to Figures 1 to 4a , wherein Figure 1 is a schematic diagram of the overall structure of an aerosol generating device provided by an embodiment of the present application; Figure 2 is Figure 1 is an exploded view of the aerosol generating device shown in

[0038] Figure 3 is Figure 1 is a cross-sectional view of the aerosol generating device shown in along the A-A direction; Figure 4a is Figure 1 is a cross-sectional view of the aerosol generating device shown in along the B-B direction. In the present embodiment, an aerosol generating device is provided, which can be used in the technical fields of medicine, cosmetics, electronic cigarettes, household appliances, etc., for heating and atomizing an aerosol generating substrate to form an aerosol when powered on. The aerosol generating substrate can be a medicine liquid formed by dispersing a certain medicine in a liquid solvent, tobacco tar, or any other liquid suitable for electronic atomization.

[0039] The aerosol-generating device specifically comprises a power supply assembly 1 and an atomization assembly 2. The atomization assembly 2 is used to store and atomize an aerosol-generating substrate to form an aerosol; the power supply assembly 1 is connected with the atomization assembly 2 and is used to supply power to the atomization assembly 2. Specifically, the power supply assembly 1 and the atomization assembly 2 can be detachably connected, so as to replace the power supply assembly 1 or the atomization assembly 2 and improve the utilization rate of the aerosol-generating device. Of course, in other embodiments, when a user inhales through the nozzle 210 of the atomization assembly 2, the airflow formed is not only from the airflow passage hole of the airflow inductor 14, but also from the gap between the atomization assembly 2 and the power supply assembly 1. The larger the gap is, the greater the airflow from the gap is, so that the proportion of the airflow from the airflow passage hole of the airflow inductor 14 is smaller, thereby greatly affecting the sensitivity of the airflow inductor 14. Therefore, in order to ensure the sensitivity of the airflow inductor 14, the power supply assembly 1 can be fixedly connected or integrally connected with the atomization assembly 2, so as to reduce the failure rate of the aerosol-generating device.

[0040] As shown in Figures 2 to 4a , the power supply assembly 1 comprises a first shell 11, a main body support 12, an inductor support 13, an airflow inductor 14 and a battery 15.

[0041] The first shell 11 is a hollow shell with one end open, and has an air inlet hole 111. The main body support 12 is accommodated in the first shell 11. The outer wall surface of the main body support 12 cooperates with the inner wall surface of the first shell 11 to form an annular air groove. One end of the air inlet hole 111 is in communication with the outside atmosphere, and the other end is in communication with one end of the annular air groove. In a specific embodiment, as shown in Figure 2 , the outer wall surface of the main body support 12 forms an annular groove 121, and the inner wall surface of the first shell 11 cooperates with the annular groove 121 to form an annular air groove. Of course, the annular groove can also be formed on the inner wall surface of the first shell 11, which is not limited in the present application.

[0042] The first shell 11 can be an integrally formed structure; of course, the first shell 11 can also be a hollow structure that is buckled front and back or left and right. Specifically, the first shell 11 is made of a light-transmitting material to facilitate observation of the situation inside the first shell 11. The light-transmitting material can be high-temperature-resistant glass or plastic, etc. It can be understood that in another embodiment, the first shell 11 can also be made of a non-light-transmitting material.

[0043] As shown in Figure 2As shown, the main support 12 has a first accommodating cavity 122, a limiting ring 123, a second accommodating cavity 124, an airflow through hole for airflow to flow through in communication with the first accommodating cavity 122, and an atomization groove 125 in direct communication with the airflow through hole. Among them, the first accommodating cavity 122 is located between the atomization groove 125 and the second accommodating cavity 124 along the length direction of the main support 12, and the opening of the first accommodating cavity 122 is arranged towards the inner wall surface of the first shell 11, that is, the first accommodating cavity 122 has opposite open end and closed end, so that the leaked aerosol generating substrate is not easy to enter the first accommodating cavity 122, in addition, this kind of structure better avoids sealing by increasing other sealing mechanism, resulting in the problem of complex manufacturing process and tight sealing. It can be understood that the closed end of the present application refers to the end face of the closed end of the first accommodating cavity 122 being completely sealed, without opening or notch.

[0044] The limiting ring 123 is arranged at the end wall of the closed end of the first accommodating cavity 122 and extends towards the opening end, that is, at the bottom wall of the first accommodating cavity 122. Specifically, the limiting ring 123 is annular, and the inner wall surface of the limiting ring 123 defines an air passage cavity 123a, and the outer wall surface of the limiting ring 123 cooperates with the inner wall surface of the first accommodating cavity 122 to define an air passage groove 123b; wherein the air passage groove 123b is in communication with the airflow through hole.

[0045] The side wall of the limiting ring 123 forms an air passage notch 123c towards the end face of the opening end; the air passage notch 123c can have a preset distance from the bottom wall of the air passage groove 123b, and the preset distance is greater than 0; thus, while ensuring air passage, the side wall of the limiting ring 123 between the bottom wall of the air passage groove 123b and the air passage notch 123c can further block the leaked aerosol generating substrate; the air passage notch 123c of the limiting ring 123 communicates the air passage groove 123b and the air passage cavity 123a. The air passage notch 123c can be opened at the position of the side wall 127c of the limiting ring 123 opposite to the end face of the air passage notch 123c, that is, the number of air passage notches 123c is two, and the two air passage notches 123c are centrally symmetric about the axis of the limiting ring 123, thus better ensuring the sensitivity of the airflow sensor 14. Preferably, the connecting line between the two air passage notches 123c is perpendicular to the axial direction of the aerosol generating device, thus better avoiding the leaked aerosol generating substrate from blocking the air passage notch 123c during use. In another embodiment, the through hole provided in the side wall 127c of the limiting ring 123 can replace the air passage notch 123c.

[0046] The battery 15 is specifically arranged in the second accommodating cavity 124, and the second accommodating cavity 124 has a structure similar to that of the first accommodating cavity 122, so as to facilitate the installation of the battery 15. It can be understood that after the main body support 12 is arranged in the first shell 11, the inner wall of the first shell 11 limits and fixes the battery 15 arranged in the second accommodating cavity 124. The atomization groove 125 cooperates with the atomization assembly 2 to form an atomization cavity, and the airflow passage hole directly communicates with the atomization groove 125.

[0047] In specific embodiments, as shown in Figure 3 , the connecting part of the bottom wall and the side wall of the atomization groove 125 is provided with a condensate storage groove 125a, which is arranged around the edge of the bottom wall of the atomization groove 125 and is used for storing aerosol condensate, thereby reducing the probability of aerosol condensate leaking into the first accommodating cavity 122. Since the atomization groove 125 used to form the atomization cavity is formed by the main body support 12 itself, compared with the prior art, it is not necessary to additionally add an atomization base to support the structure used to form the atomization groove 125, thereby effectively simplifying the product structure and making the assembly process simpler.

[0048] In combination with Figure 4a , the inductor support 13 is at least partially inserted into the first accommodating cavity 122 and abuts against the end face of the limiting ring 123 away from the closed end; and the inductor support 13 is formed with a mounting groove 131 (see Figure 2 ) communicating with the airflow passage hole. Specifically, the mounting groove 131 communicates with the airflow passage hole in sequence through the air passage cavity 123a, the air passage gap 123c, and the air passage groove 123b. In combination with Figure 2 , the airflow inductor 14 is detachably arranged in the mounting groove 131 and is used for detecting the airflow change in the airflow passage hole to control the power supply of the battery to the atomization core. Wherein, by detachably connecting the airflow inductor 14 with the inductor support 13, the airflow inductor 14 can be recycled, which is more environmentally friendly; and by abutting the inductor support 13 against the end face of the limiting ring 123 away from the closed end, it not only avoids the problem that the damaged airflow inductor 14 caused by the direct contact between the aerosol generating substrate leaked into the first accommodating cavity 122 and the airflow inductor 14, but also blocks the aerosol generating substrate leaked into the first accommodating cavity 122, thereby reducing the probability that the airflow inductor 14 is affected by the leaked aerosol generating substrate, and the sensitivity is higher.

[0049] Specifically, referring to Figure 2 and Figure 5 , Figure 5The sectional view of the inductor support and the main support provided by an embodiment of the present application after disassembly; the inductor support 13 comprises a base portion 13a, a first pin 13b and a second pin 13c. The base portion 13a covers the air gap end of the first accommodating cavity 122, and the portion of the base portion 13a inserted into the first accommodating cavity 122 is in interference fit with the first accommodating cavity 122 to seal the air vent groove 123b, thereby preventing leakage of the aerosol generating substrate or the aerosol condensate. Specifically, the periphery of the portion of the base portion 13a inserted into the first accommodating cavity 122 is provided with a protruding ring 132 along the circumferential direction thereof, and the base portion 13a is in interference fit with the inner wall surface of the first accommodating cavity 122 through the protruding ring 132. In this embodiment, the mounting groove 131 is specifically formed on the surface of the base portion 13a away from the first accommodating cavity 122, and the mounting groove 131 has a bottom wall to limit the airflow inductor 14. At the same time, the bottom wall of the mounting groove 131 is formed with a through hole in communication with the air vent cavity 123a, so as to communicate the airflow inductor 14 arranged in the mounting groove 131 with the air vent cavity 123a.

[0050] Specifically, as shown in Figure 2 The main support 12 further comprises a first connecting groove 126a and a second connecting groove 126b, and the first accommodating cavity 122 is located between the first connecting groove 126a and the second connecting groove 126b; the first pin 13b is in interference fit connection with the first connecting groove 126a, and the second pin 13c is in interference fit connection with the second connecting groove 126b, so as to not only facilitate disassembly between the main support 12 and the inductor, but also to realize reliable connection between the inductor support 13 and the main support 12. In specific embodiments, the first connecting groove 126a and the second connecting groove 126b are arranged on both sides of the first accommodating cavity 122 along the radial direction of the main support 12, of course, they can also be arranged on both sides of the first accommodating cavity 122 along the length direction of the main support 12, and the present application does not limit this as long as the connection between the main support 12 and the inductor support 13 can be realized.

[0051] As Figure 4aAs shown, the airflow passage includes a first air passage section 16a and a second air passage section 16b extending along the length direction of the main support 12. The first air passage section 16a is formed on the bottom wall 127b of the atomization groove 125 and directly communicates with the atomization groove 125; the second air passage section 16b directly communicates with the air passage groove 123b, and the second air passage section 16b and the first air passage section 16a are arranged in a spaced manner in the orthographic projection of the main support 12 in the cross section. In this way, the probability of the aerosol condensate falling into the second air passage section 16b can be effectively reduced, and the probability of the remaining aerosol diffusing to the second air passage section 16b when the aerosol generating device is working can also be reduced, so that the amount of aerosol generating substrate or aerosol condensate entering the first containing cavity 122 through the airflow passage can be reduced, and in turn the damage rate of the airflow sensor 14 caused by contact with the aerosol generating substrate or aerosol condensate can be reduced.

[0052] Specifically, as shown in Figure 4a , the main support 12 has an air inlet channel 127 extending along the radial direction of the main support 12, and one end of the air inlet channel 127 communicates with the other end of the annular air groove. It can be understood that the air inlet hole 111 communicates with the air inlet channel 127 through the annular air groove; in this way, the condensate generated by the aerosol diffusing to the annular air groove remaining in the atomization groove 125 can be stored in the annular air groove, so that the problem of the condensate leaking out of the air inlet hole 111 and dirtying the user can be avoided.

[0053] Specifically, the other end of the air inlet channel 127 respectively communicates with one end of the first air passage section 16a away from the atomization groove 125 and one end of the second air passage section 16b away from the air passage groove 123b; the second air passage section 16b communicates with the first air passage section 16a through the air inlet channel 127. In a specific embodiment, referring to Figure 4a and Figure 4b , Figure 4b , a structure diagram of the air inlet channel and the airflow passage at the position of the liquid blocking protrusion; in order to reduce the probability of the aerosol generating substrate or the aerosol condensate leaking from the first air passage section 16a into the second air passage section 16b, the air inlet channel 127 can be provided with a liquid blocking protrusion 128; the liquid blocking protrusion 128 is located between the air inlet of the first air passage section 16a and the air outlet of the second air passage section 16b, and is used to block the aerosol generating substrate or the aerosol condensate entering the air inlet channel 127 from entering the second air passage section 16b.

[0054] Specifically, referring to Figure 6a and Figure 6b , wherein Figure 6a is a projection view of the air inlet channel at the position of the liquid blocking protrusion in the vertical cross section of the air inlet channel; Figure 6bThe projection of the air inlet channel at the position of the liquid blocking protrusion on the vertical section of the air inlet channel is provided for another embodiment of the present application. The projection of the air inlet channel 127 on the vertical section of the power supply assembly 1 can be rectangular, circular, irregular oval, etc.; and the projection of the air inlet channel 127 on the vertical section of the power supply assembly 1 includes two parts; wherein the first part 127a is close to the air inlet of the first air passage section 16a and is connected to the first air passage section 16a and the second air passage section 16b. The second part 127b is close to the air outlet of the second air passage section 16b and is blocked by the liquid blocking protrusion 128 to block the aerosol generating substrate or the aerosol condensate, so as to prevent the aerosol generating substrate or the aerosol condensate from leaking to the air outlet of the second air passage section 16b.

[0055] Preferably, in an embodiment, referring to Figure 4b , the liquid blocking protrusion 128 is arranged close to the air outlet of the second air passage section 16b; that is, along the airflow direction D of the air inlet channel 127, the straight line distance L1 between the liquid blocking protrusion 128 and the air inlet of the first air passage section 16a is not less than the straight line distance L2 between the liquid blocking protrusion 128 and the air outlet of the second air passage section 16b; and the angle α between the side surface of the liquid blocking protrusion 128 facing the first air passage section 16a and the airflow direction of the air inlet channel 127 is greater than or equal to 30° and less than or equal to 80°; that is, the liquid blocking protrusion 128 is inclined towards the air inlet of the first air passage section 16a to form a gas guiding inclined surface 128a; in this way, not only can the probability of aerosol forming medium leaking into the second air passage section 16b be reduced, but also the gas guiding is smoother, so that the air pressure change inside the second air passage section 16b can be accelerated, thereby promoting the triggering of the airflow sensor 14 and ensuring the sensitivity of the airflow sensor 14.

[0056] In a specific embodiment, L1 and L2 are both zero, at this time, the side surface of the liquid blocking protrusion 128 facing the first air passage section 16a is flush with the side wall surface of the first air passage section 16a close to the liquid blocking protrusion 128 along the length direction of the main body support 12; and the side surface of the liquid blocking protrusion 128 facing the second air passage section 16b directly contacts the side wall surface of the air outlet of the second air passage section 16c close to the liquid blocking protrusion 128. In another specific embodiment, L1 is greater than L2; and L1 is a natural number greater than zero; and L2 can be zero or another natural number smaller than L1.

[0057] In another embodiment, referring to Figure 7 , Figure 7A cross-sectional view of the main body support provided by an embodiment of the present application; to further reduce the aerosol generating substrate and / or aerosol condensate leaking through the second ventilation section 16b to the first accommodating cavity 122 and affecting the airflow sensor 14, a spiral groove 161 can be formed on the inner wall surface of the second ventilation section 16b to store the aerosol generating substrate and / or aerosol condensate leaking into the second ventilation section 16b, thereby avoiding the problem of these aerosol generating substrates and / or aerosol condensates further leaking into the ventilation cavity 123a through the ventilation groove 123b and the ventilation gap 123c of the limiting ring 123, and further causing damage to the airflow sensor 14.

[0058] In specific embodiments, referring to Figures 2 to 4a The power supply assembly 1 further includes a first sealing ring 17a and a second sealing ring 17b. The first sealing ring 17a is arranged around the outer periphery of the main body support 12 and is located between the annular groove 121 and the first accommodating cavity 122 in the length direction of the main body support 12 to prevent the aerosol generating substrate and / or aerosol condensate in the annular groove 121 from leaking into the first accommodating cavity 122 through the gap between the main body support 12 and the first housing 11. The second sealing ring 17b is arranged around the outer periphery of the main body support 12 and is located between the atomization groove 125 and the annular groove 121 in the length direction of the main body support 12 to prevent the aerosol generating substrate and / or aerosol condensate in the atomization assembly from leaking into the annular groove 121 through the gap between the main body support 12 and the first housing 11.

[0059] The power supply assembly 1 provided by the embodiment comprises a first shell 11 and a main body support 12, and the main body support 12 is accommodated in the first shell 11. The main body support 12 has a first accommodating cavity 122 and an airflow through hole in communication with the first accommodating cavity 122 and allowing airflow to pass through. The first accommodating cavity 122 has opposite air inlet notch ends and a closed end, and the closed end is provided with a limiting ring 123 extending towards the air inlet notch end. Meanwhile, an inductor support 13 and an airflow inductor 14 are arranged, and the airflow inductor 14 is detachably arranged in a mounting groove 131 of the inductor support 13 to detect the airflow change in the airflow through hole through the airflow inductor 14. Meanwhile, at least part of the inductor support 13 is inserted into the first accommodating cavity 122 and abuts against an end face of the limiting ring 123 away from the closed end. By detachably connecting the airflow inductor 14 and the inductor support 13, the airflow inductor 14 can be recycled and reused, which is more environmentally friendly. By arranging the limiting ring 123 and abutting the inductor support 13 against the end face of the limiting ring 123 away from the closed end, the problem that the aerosol generating substrate leaked into the first accommodating cavity 122 directly contacts the airflow inductor 14 to cause damage to the airflow inductor 14 can be avoided, and the aerosol generating substrate leaked into the first accommodating cavity 122 can be blocked by the limiting ring 123 to reduce the probability of the airflow inductor 14 being affected by the leaked aerosol generating substrate, so that the sensitivity is higher.

[0060] As shown in Figures 2 to 4a The atomization assembly 2 comprises a second shell 21, an atomization support 22, an atomization core 23, an electrode 24 and an elastic pad 25. The second shell 21 is a hollow shell and forms a liquid storage cavity 213, a suction nozzle 210 and a first air outlet passage 211 in communication with the suction nozzle 210. The liquid storage cavity 213 is used for storing the aerosol generating substrate. At least part of the atomization support 22 is accommodated in the second shell 21, and the atomization support 22 forms a liquid inlet hole 221 in communication with the liquid storage cavity 213, a second air outlet passage 222 in communication with the first air outlet passage 211 and an aerosol flow-through groove 225 in communication with the second air outlet passage 222 and an atomization cavity, respectively. The atomization core 23 is arranged in the atomization support 22 and covers the orifice of one end of the liquid inlet hole 221, so that the aerosol generating substrate in the liquid storage cavity 213 flows out through the liquid inlet hole 221 and directly reaches the surface of the atomization core 23, and then the atomization core 23 atomizes the aerosol generating substrate when electrified to form the aerosol. The aerosol flows out in sequence through the aerosol flow-through groove 225, the second air outlet passage 222 and the first air outlet passage 211.

[0061] In a specific embodiment, the second housing 21 is fixedly connected to the first housing 11 to achieve a fixed connection between the atomizing component 2 and the power supply component 1. By making the atomizing component 2 and the power supply component 1 non-removable, the aerosol matrix leaking out during the disassembly of the atomizing component 2 can be prevented from soiling the user. Furthermore, since the atomizing component 2 and the power supply component 1 are non-removable and can fit tightly together, the proportion of airflow from the gap between the atomizing component 2 and the power supply component 1 in the airflow generated during inhalation can be reduced, thereby effectively improving the sensitivity of the airflow sensor 14. Specifically, the first housing 11 may be provided with a snap-fit ​​groove 112, and the outer wall of the second housing 21 may be provided with a snap-fit ​​buckle 212. The first housing 11 and the second housing 21 are engaged in the snap-fit ​​groove 112 through the snap-fit ​​buckle 212 to achieve a fixed connection between them. Of course, the snap-fit ​​buckle 212 may be provided on the first housing 11, and the snap-fit ​​groove 112 may be provided on the second housing 21; or the first housing 11 and the second housing 21 may be fixed by welding or other methods.

[0062] Specifically, the first end of the atomizing bracket 22 is located inside the second housing 21, and the second end of the atomizing bracket 22 is connected to the main support 12, forming an atomizing chamber with the atomizing groove 125 of the main support 12. The inner wall of the atomizing groove 125 may be provided with a snap-fit ​​groove, and the end of the atomizing bracket 22 may be provided with a snap-fit ​​hook. The snap-fit ​​hook engages with the snap-fit ​​groove to connect the atomizing bracket 22 to the main support 12, facilitating assembly. Alternatively, the inner wall of the atomizing groove 125 may be provided with a snap-fit ​​hook, and the end of the atomizing bracket 22 may be provided with a snap-fit ​​groove.

[0063] In a specific embodiment, see Figure 8 , Figure 8 for Figure 1 The diagram shows the disassembled aerosol generating device after the first housing has been concealed. To maintain the pressure balance within the liquid storage chamber 213 and ensure normal liquid flow, the atomizing bracket 22 and the second housing 21 also cooperate to form a ventilation channel. One end of the ventilation channel is connected to the liquid storage chamber 213, and the other end can be connected to the atomizing chamber or the outside atmosphere. Specifically, a ventilation groove 223 can be formed on the outer wall 127c of the atomizing bracket 22. One end of the ventilation groove 223 is connected to the atomizing chamber, and the other end is connected to the air supply hole 224 (see...). Figure 3 The second housing 21 is connected to the liquid storage chamber 213, and the inner wall of the second housing 21 is covered by the opening of the ventilation groove 223 to form a ventilation channel; in this embodiment, the airflow direction S in the ventilation channel can be specifically referred to Figure 8 Of course, the ventilation groove 223 can also be formed on the inner wall of the second housing 21, or on the outer wall of the atomizing bracket 22 and the inner wall opposite to the second housing 21. The two ventilation grooves cooperate to define the ventilation channel.

[0064] See Figure 9, Figure 9 for Figure 3 The enlarged view at point C shows that electrode 24 is fixed inside the main support 12 and abuts against the atomizing core 23 to supply power to the atomizing core 23. Specifically, electrode 24 includes a conductive post portion 241 and a blocking ring portion 242; the first end of the conductive post portion 241 is connected to the main support 12, and the second end of the conductive post portion 241 abuts against the atomizing core 23; the blocking ring portion 242 is disposed around the outer peripheral surface of the conductive post portion 241 and is connected to the conductive post portion 241. In a specific embodiment, at least a portion of the elastic pad 25 is located between the blocking ring portion 242 and the main support 12, and elastically abuts against the blocking ring portion 242 and the main support 12. By positioning a portion of the elastic pad 25 between the blocking ring portion 242 and the main support 12, not only can the aerosol generating matrix be prevented from leaking to the airflow sensor 14 through the gap between electrode 24 and the main support 12, but the electrode 24 can also elastically abut against the atomizing core 23, avoiding damage to the atomizing core 23.

[0065] In a specific embodiment, such as Figure 3 and Figure 9 As shown, a positioning groove 125b is provided at the bottom wall of the atomizing tank 125, and the elastic pad 25 includes a vent pipe portion 251 and a pad portion 252. The vent pipe portion 251 is tubular, and its first end is inserted into the positioning groove 125b and communicates with the vent groove 123b; the second end of the vent pipe portion 251 is located in the atomizing tank 125 to communicate with the vent groove 123b and the atomizing tank 125; it can be understood that in this embodiment, the vent pipe portion 251 defines a first venting section 16a. At least a portion of the pad portion 252 is located between the blocking ring portion 242 and the main support 12 and elastically abuts against the blocking ring portion 242 and the main support 12. The aerosol generating device corresponding to this embodiment has a compact overall structure, is easy to assemble, and can further reduce the probability of leakage problems of the aerosol generating matrix.

[0066] In a specific embodiment, such as Figure 2 As shown, the atomizing assembly 2 also includes a sealing cap 26 and a sealing seat 27. Wherein, as... Figure 3 As shown, the sealing cap 26 is positioned on the side of the atomizing bracket 22 facing the liquid storage chamber 213 to prevent the aerosol generating matrix in the liquid storage chamber 213 from leaking out through the gap between the atomizing bracket 22 and the first housing 11. Specifically, the sealing cap 26 has a first opening 261 corresponding to the liquid inlet 221 of the atomizing bracket 22, to ensure that the aerosol generating matrix in the liquid storage chamber 213 can smoothly enter the liquid inlet 221. The sealing cap 26 also has a second opening 262 corresponding to the second air outlet channel 222 of the atomizing bracket 22, to ensure that the first air outlet channel 211 can pass through the second opening 262 and communicate with the second air outlet channel 222.

[0067] like Figure 3As shown, the sealing seat 27 wraps the circumference of the atomization core 23 and is located between the atomization core 23 and the atomization support 22, for preventing the problem of the aerosol generating substrate flowing out of the liquid inlet hole 221 from flowing out of the gap between the atomization core 23 and the atomization support 22 to the atomization cavity. Specifically, the sealing seat 27 is provided with a through hole corresponding to the position of the liquid inlet hole 221, so that the aerosol generating substrate flowing out of the liquid inlet hole 221 can directly enter the atomization core 23 for atomization. Among them, the first sealing ring 17a, the second sealing ring 17b, the sealing cover 26 and the sealing seat 27 can all be made of silica gel or rubber.

[0068] The aerosol generating device provided by the embodiment can avoid the aerosol generating substrate leaking when the atomization assembly 2 is disassembled from dirtying the customer, and can reduce the proportion of the airflow from the gap between the atomization assembly 2 and the power supply assembly 1 in the airflow formed when the user inhales, thereby effectively improving the sensitivity of the airflow sensor 14. At the same time, the atomization groove 125 is formed by surrounding the main support 12 used for accommodating the battery 15, which can reduce the use of the atomization base, thereby not only simplifying the product structure, but also simplifying the assembly process. In addition, by arranging the airflow sensor 14 between the atomization groove 125 and the second accommodating cavity 124, the airflow sensor 14 is closer to the atomization groove 125, which can further improve the sensitivity of the airflow sensor 14.

[0069] The above is only an embodiment of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation using the content of the specification and drawings, or direct or indirect application in other related technical fields, is also included in the patent protection scope of the present application.

Claims

1. A power supply assembly for connection with an atomization assembly; characterized by, The power supply assembly comprises: a first shell; a main body support accommodated in the first shell and having a first accommodating cavity and an airflow passage communicating with the first accommodating cavity and allowing airflow to pass through; the first accommodating cavity has opposite open ends and a closed end, and a limiting ring is arranged at an end wall of the closed end and extends towards the open end; an inductor support at least partially inserted into the first accommodating cavity and abutting against an end face of the limiting ring away from the closed end; and the inductor support is formed with a mounting groove communicating with the airflow passage; wherein the mounting groove is formed on a side surface of the inductor support away from the first accommodating cavity, and the mounting groove is connected with the airflow passage through the first accommodating cavity; an airflow inductor detachably arranged in the mounting groove and used for detecting airflow change in the airflow passage; an inner wall surface of the limiting ring defining an air passage cavity, and an outer wall surface of the limiting ring cooperating with an inner wall surface of the first accommodating cavity to define an air passage groove; wherein the air passage groove communicates with the airflow passage; an end face of a side wall of the limiting ring towards the open end is formed with an air passage notch; the air passage notch communicates the air passage groove and the air passage cavity; and the mounting groove communicates with the airflow passage through the air passage cavity, the air passage notch and the air passage groove in sequence.

2. The power supply assembly of claim 1, wherein, The power supply assembly further comprises a battery; the main body support further has a second accommodating cavity and an atomization groove; the battery is arranged in the second accommodating cavity; the atomization groove is located on a side of the first accommodating cavity away from the second accommodating cavity and used for cooperating with the atomization assembly to form an atomization cavity; and the airflow passage directly communicates with the atomization groove.

3. The power supply assembly of claim 2, wherein, The airflow passage comprises a first air passage section and a second air passage section extending along a length direction of the main body support; the first air passage section directly communicates with the atomization groove; the second air passage section directly communicates with the air passage groove, and the second air passage section and the first air passage section are arranged in interval in orthographic projection on a cross section of the main body support; the main body support further has an air inlet channel; the air inlet channel extends along a radial direction of the main body support and respectively communicates with one end of the first air passage section away from the atomization groove and one end of the second air passage section away from the air passage groove; and the second air passage section communicates with the first air passage section through the air inlet channel.

4. The power supply assembly of claim 3, wherein, A liquid blocking protrusion is arranged in the air inlet channel; the liquid blocking protrusion is located between an air inlet of the first air passage section and an air outlet of the second air passage section.

5. The power supply assembly of claim 4, wherein, A straight line distance between the liquid blocking protrusion and the air inlet of the first air passage section is greater than a straight line distance between the liquid blocking protrusion and the air outlet of the second air passage section; and an included angle between a side surface of the liquid blocking protrusion towards the second air passage section and an airflow direction of the air inlet channel is greater than or equal to 30° and less than or equal to 80°.

6. The power supply assembly of claim 3, wherein, The first shell is provided with an air inlet hole; an outer wall surface of the main body support is arranged in fit with an inner wall surface of the first shell and cooperates to form an annular air groove; and the air inlet hole communicates with the air inlet channel through the annular air groove.

7. The power supply assembly of claim 2, wherein, The main body support further comprises a first connecting groove and a second connecting groove, and the first accommodating cavity is located between the first connecting groove and the second connecting groove. The inductor support comprises a base portion, a first pin and a second pin. The base portion covers the open end of the first accommodating cavity. The surface of the base portion, which is away from the first accommodating cavity, forms the mounting groove. The first pin is connected to the first connecting groove in an interference fit. The second pin is connected to the second connecting groove in an interference fit.

8. The power supply assembly of claim 7, wherein, The portion of the base portion, which is inserted into the first accommodating cavity, is connected to the first accommodating cavity in an interference fit to seal the ventilation groove.

9. The power supply assembly according to claim 1, characterized in that the first housing is made of a light-transmitting material.

10. An aerosol-generating device comprising: The power supply assembly comprises: The power supply assembly is as claimed in any one of claims 1-9. The atomization assembly is connected to the power supply assembly and is used to atomize the aerosol generating substrate to form an aerosol when powered. 11.The aerosol-generating device of claim 10, wherein, The atomization assembly comprises a second housing, an atomization support, an atomization core and an electrode. The second housing is fixedly connected to the first housing. The first end of the atomization support is located in the second housing. The second end of the atomization support is connected to the main body support and cooperates with the atomization groove of the main body support to form an atomization cavity. The atomization core is installed in the atomization support and located in the atomization cavity. The electrode is fixed in the main body support and abuts against the atomization core. 12.The aerosol-generating device of claim 11, wherein, The electrode comprises a conductive column portion and a blocking ring portion. The first end of the conductive column portion is connected to the main body support. The second end of the conductive column portion abuts against the atomization core. The blocking ring portion is arranged around the outer circumferential surface of the conductive column portion and connected to the conductive column portion. The atomization assembly further comprises an elastic pad. At least part of the elastic pad is located between the blocking ring portion and the main body support and elastically abuts against the blocking ring portion and the main body support.

13. The aerosol-generating device of claim 12, wherein, A positioning groove is arranged at the bottom wall of the atomization groove. The elastic pad comprises a ventilation pipe portion and a pad block portion. The first end of the ventilation pipe portion is inserted into the positioning groove and communicates with the ventilation groove. The second end of the ventilation pipe portion is located in the atomization groove to communicate the ventilation groove and the atomization groove. At least part of the pad block portion is located between the blocking ring portion and the main body support and elastically abuts against the blocking ring portion and the main body support. 14.The aerosol-generating device of claim 12, wherein, One of the inner wall of the atomization groove and the end portion of the atomization support is provided with a buckling groove, and the other is provided with a buckling hook. The buckling hook is connected to the buckling groove in a buckling manner.

Images