Electronic atomization device

Abstract

The utility model relates to the technical field of smoking sets, and discloses an electronic atomization device which comprises an airflow channel, a smoke channel, a smoke channel and a smoke channel, the airflow sensor is used for sensing airflow change in the airflow channel; the sealing seat at least partially surrounds the airflow sensor; a mounting cavity is defined in the support, and the mounting cavity is used for containing the sealing seat and the airflow sensor; wherein the support is provided with an induction through hole communicated with the installation cavity and the airflow channel, an exhaust channel is defined between the sealing seat and the inner surface of the installation cavity, the exhaust channel enables the space, facing one side of the induction through hole, of the airflow sensor to be communicated with the outside of the installation cavity, and the situation that the airflow sensor is automatically started or damaged when substances such as aerosol flow back can be prevented.

Description

Technical Field

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

[0002] The main function of the airflow sensor switch in the electronic atomization device is to receive the user's inhalation signal, thereby controlling the start and stop of the electronic atomization device.

[0003] In the related art, the installation structure of the airflow sensor switch of the electronic atomization device is that one end faces the atmospheric pressure and the other end faces the internal airway of the electronic atomization device. Such a structure is easy to cause the airflow sensor switch to start automatically or even malfunction when aerosol and other substances flow back. Utility Model Content

[0004] The embodiment of the present application provides an electronic atomization device, which can prevent the airflow sensor from self-activating or being damaged when aerosol or other substances flow back.

[0005] An embodiment of the present application provides an electronic atomization device, comprising: an airflow channel, which provides a path for airflow to pass through the inside of the electronic atomization device; an airflow sensor, which is used to sense airflow changes in the airflow channel; a sealing seat, which at least partially surrounds the airflow sensor; a bracket, on which a mounting cavity is defined, and the mounting cavity is used to accommodate the sealing seat and the airflow sensor; wherein the bracket is provided with a sensing through hole connecting the mounting cavity and the airflow channel, an exhaust channel is defined between the sealing seat and the inner surface of the mounting cavity, or an exhaust channel is defined between the inner surface of the sealing seat and the airflow sensor, and the exhaust channel connects the space on the side of the airflow sensor facing the sensing through hole with the outside of the mounting cavity.

[0006] In some embodiments, a boss is configured on a side of the bracket facing away from the mounting cavity, and the boss at least partially surrounds the sensing through hole to prevent liquid from flowing back to the airflow sensor.

[0007] In some embodiments, a buffer member for absorbing liquid is disposed on a side of the bracket facing away from the installation cavity, and the buffer member is distributed around at least a portion of the edge of the sensing through hole.

[0008] In some embodiments, the installation cavity is surrounded by a bottom wall and side walls, and a notch is formed in the side wall of the installation cavity; the notch is connected to the exhaust passage, or the notch is constructed as a part of the exhaust passage.

[0009] In some embodiments, at least one first groove body extending longitudinally along the sealing seat is formed on the inner surface of the sealing seat; the first groove body is communicated with the exhaust passage, or the first groove body is constructed as a part of the exhaust passage.

[0010] In some embodiments, at least one second groove body extending radially along the sealing seat is formed at one end of the sealing seat close to the sensing through hole, and the second groove body is connected to the first groove body.

[0011] In some embodiments, the airflow sensor has a lead, and at least a portion of the lead is received in the first slot or the second slot.

[0012] In some embodiments, at least one second groove body extending radially along the sealing seat is formed at one end of the sealing seat close to the sensing through hole, and a portion of the exhaust passage is defined between the second groove body and the inner surface of the installation cavity.

[0013] In some embodiments, at least one protrusion is disposed on the inner side of one end of the sealing seat away from the sensing through hole, and one side of the airflow sensor abuts against the protrusion.

[0014] In some embodiments, a first step portion and a second step portion are constructed on a side of the bracket away from the airflow sensor; the sensing through hole is opened on the first step portion; the airflow channel passes through the second step portion, wherein the second step portion is closer to the air inlet hole of the airflow channel than the first step portion.

[0015] In some embodiments, the electronic atomization device includes: an airflow channel, which provides a path for airflow to pass through inside the electronic atomization device; an airflow sensor, which is used to sense airflow changes in the airflow channel; a sealing seat, which at least partially surrounds the airflow sensor; a bracket, which defines an installation cavity, and the installation cavity is used to accommodate the sealing seat and the airflow sensor; wherein, at least one first groove body extending longitudinally along the sealing seat is provided on the inner surface of the sealing seat, and at least one second groove body extending radially along the sealing seat is provided at one end of the sealing seat, and the second groove body is connected to the first groove body; the airflow sensor has a lead, and at least a portion of the lead is received in the first groove body or the second groove body.

[0016] The beneficial effects of the embodiments of the present application include at least:

[0017] An embodiment of the present application provides an electronic atomization device, which is implemented by installing a sealing seat accommodating an airflow sensor in a mounting cavity of a bracket, and then opening a sensing through hole connecting the mounting cavity and the airflow channel on the bracket, and defining a space connecting the airflow sensor facing the sensing through hole and an exhaust channel outside the mounting cavity between the sealing seat and the inner surface of the mounting cavity. When the airflow containing aerosol flows back in reverse, part of the airflow flows back into the airflow channel, and the other part of the airflow passes through the sensing through hole and enters the space on the airflow sensor facing the sensing through hole, and is promptly discharged to the outside of the mounting cavity through the exhaust channel, so that no pressure difference can be formed on both sides of the airflow sensor, thereby preventing the airflow sensor from self-starting or being damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0019] Figure 1 It is a cross-sectional schematic diagram of an aerosol generating device provided in one embodiment of the present application.

[0020] Figure 2 It is a partial structural schematic diagram of an aerosol generating device provided in one embodiment of the present application.

[0021] Figure 3 yes Figure 2 Schematic diagram of another perspective of part of the structure of the aerosol generating device.

[0022] Figure 4 It is a cross-sectional schematic diagram of a partial structure of an aerosol generating device provided in one embodiment of the present application.

[0023] Figure 5 It is a cross-sectional schematic diagram of a partial structure of an aerosol generating device provided in another embodiment of the present application.

[0024] Figure 6 It is a schematic diagram of the partial structure of an aerosol generating device provided in one embodiment of the present application.

[0025] Figure 7 yes Figure 6 A schematic diagram of an exploded view of a partial structure of an aerosol generating device from another perspective is shown.

[0026] Figure 8 It is a structural schematic diagram of a sealing seat provided in one embodiment of the present application.

[0027] Fig. 9 yes Figure 8 A schematic cross-sectional view of the sealing seat is shown.

[0028] The reference numerals are as follows:

[0029] 1- Air flow channel;

[0030] 2- Air flow sensor;

[0031] 3-sealing seat; 31-first slot body; 32-second slot body; 33-accommodating cavity; 34-protruding portion; 35-connecting groove; 36-limiting portion;

[0032] 4-bracket; 41-mounting cavity; 411-side wall; 412-bottom wall; 413-notch; 42-sensing through hole; 421-boss; 43-first step portion; 44-second step portion;

[0033] 5- Exhaust channel;

[0034] 6- buffer;

[0035] 7-lead;

[0036] 8-liquid absorbing cotton; 81-liquid absorbing cotton through hole;

[0037] 9- Heating component;

[0038] 100-electronic atomization device; 101-air inlet; 102-nozzle. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0040] The terms "first", "second", "third" in this application are only used for descriptive purposes, and cannot be understood as indicating or suggesting the quantity or order of the indicated technical features relative to importance or implicitly indicating. In the embodiments of the present application, all directional indications (such as up, down, left, right, front, back ...) are only used to explain the relative position relationship or movement between the components under a certain specific posture (as shown in the accompanying drawings), and if the specific posture changes, the directional indication also changes accordingly. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product or equipment comprising a series of steps or units is not limited to the steps or units listed, but optionally also includes steps or units that are not listed, or optionally also includes other steps or units inherent to these processes, methods, products or equipment.

[0041] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0042] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be one or more central elements therebetween. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0043] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The embodiment of the present application provides an electronic atomization device 100, including a heating component 9, an airflow channel 1, an airflow sensor 2, a sealing seat 3 and a bracket 4, wherein the airflow channel 1 provides a path for airflow to pass through the inside of the electronic atomization device 100; the airflow sensor 2 is used to sense airflow changes in the airflow channel 1; the sealing seat 3 at least partially surrounds the airflow sensor 2; a mounting cavity 41 is defined on the bracket 4, and the mounting cavity 41 is used to accommodate the sealing seat 3 and the airflow sensor 2; wherein a sensing through hole 42 connecting the mounting cavity 41 and the airflow channel 1 is provided on the bracket 4, an exhaust channel 5 is defined between the sealing seat 3 and the inner surface of the mounting cavity 41, or an exhaust channel 5 is defined between the inner surface of the sealing seat 3 and the airflow sensor 2, and the exhaust channel 5 connects the space on the side of the airflow sensor 2 facing the sensing through hole 42 with the outside of the mounting cavity 41. By installing the sealing seat 3 containing the airflow sensor in the installation cavity 41 of the bracket 4, and then opening the sensing through hole 42 connecting the installation cavity 41 and the airflow channel 1 on the bracket 4, and defining a space connecting the airflow sensor 2 facing the sensing through hole 42 and the exhaust channel 5 outside the installation cavity 41 between the sealing seat 3 and the inner surface of the installation cavity 41, when the airflow containing aerosol in the heating component 9 reversely flows back, part of the airflow flows back to the inside of the airflow channel 1, and the other part of the airflow passes through the sensing through hole 42 and enters the space on the airflow sensor 2 facing the sensing through hole 42, and is promptly discharged to the outside of the installation cavity 41 through the exhaust channel 5, so that no pressure difference can be formed on both sides of the airflow sensor 2, thereby preventing the airflow sensor 2 from self-starting or being damaged.

[0044] Among them, the air flow channel 1 can refer to Figure 1 The combination of all channels from the air inlet 101 to the nozzle 102 in the electronic atomization device 100 shown may also refer to other channels except the space through which the sensing through hole 42 and the exhaust channel 5 pass. The airflow channel 1 in the embodiment of the present application may refer to the latter. The exhaust channel 5 is defined by the sealing seat 3 and the inner surface of the mounting cavity 41. The exhaust channel 5 can be completely opened on the inner surface of the mounting cavity 41; the exhaust channel 5 can also be completely formed on the sealing seat 3; the exhaust channel 5 can also be formed by the part opened on the mounting cavity 41 and the part formed on the sealing seat 3. The exhaust channel 5 connects the space on the side of the airflow sensor 2 facing the sensing through hole 42 with the outside of the mounting cavity 41. The outside of the mounting cavity 41 can be the space from the end of the sealing seat 3 away from the sensing through hole 42 to the air inlet 101 of the electronic atomization device 100.

[0045] In some embodiments, see Figure 4 , a boss 421 may be constructed on the side of the bracket 4 facing away from the mounting cavity 41, and the boss 421 at least partially surrounds the sensing through hole to prevent the liquid from flowing back into the mounting cavity 41. The boss 421 extends from the side of the bracket 4 away from the mounting cavity 41 to a direction further away from the mounting cavity 41, that is, the boss 421 has a certain height relative to the side of the bracket 4 away from the mounting cavity 41, thereby preventing the liquid from flowing back into the mounting cavity 41 through the bracket 4. The liquid may refer to the liquid formed by the condensation of the mist blown into the electronic atomization device 100 by the user, or may refer to the liquid after the aerosol condensed by the back-blown back into the electronic atomization device 100, or may refer to the liquid matrix generated by the aerosol leaking from the liquid storage tank inside the electronic atomization device 100.

[0046] In some embodiments, see Figure 1 and Figure 2 , a buffer 6 for absorbing liquid may be provided on the side of the bracket 4 facing away from the mounting cavity 41, and the buffer 6 is distributed around at least a portion of the edge of the sensing through hole 42. Exemplarily, the buffer 6 can absorb and retain a certain amount of liquid, thereby preventing the liquid from entering the inside of the sensing through hole 42; the buffer 6 can be a fiber material or a microporous material with capillary adsorption ability, such as fiber cotton. The fiber cotton has a certain height, and the fiber cotton can be completely arranged around the edge of the sensing through hole 42. The shape of the fiber cotton matches the shape of the sensing through hole 42. The fiber cotton can be used to block or absorb aerosol liquid particles vomited by the user near the sensing through hole 42 or liquid that seeps around the sensing through hole 42, and prevent the liquid from flowing back to the space on one side of the airflow sensor 2.

[0047] In some embodiments, see Figure 6 and Figure 7The mounting cavity 41 may be formed by a bottom wall 412 and a side wall 411, and a notch 413 is provided on the side wall 411 of the mounting cavity 41; the notch 413 is connected to the exhaust passage 5, or the notch 413 is constructed as a part of the exhaust passage 5. The bottom wall 412 of the mounting cavity 41 may be the part of the bracket 4 on which the sensing through hole 42 is provided (that is, the sensing through hole 42 is provided on the bottom wall 412 of the mounting cavity 41), one end of the side wall 411 is connected to the bottom wall 412, and together with the bottom wall 412, the mounting cavity 41 is formed, and the opening of the mounting cavity 41 may face the side away from the above-mentioned buffer member 6, and the sealing seat 3 is installed inside the mounting cavity 41 through the opening. The side wall 411 may be surrounded to form a closed loop, and a notch 413 is provided inside the side wall 411, and the notch 413 is connected to the exhaust passage 5; or the side wall 411 may not be closed when surrounded, and the not closed part is the notch 413, which can be referred to. Figure 6 The side wall 411 in the middle, the notch 413 is connected to the exhaust passage. The notch 413 can also be a part of the exhaust passage 5, for example, it can be one section of the exhaust passage 5.

[0048] In some embodiments, see Figure 6 , Figure 8 and Fig. 9 At least one first groove 31 extending in the longitudinal direction of the sealing seat 3 may be provided on the inner surface of the sealing seat 3; the first groove 31 is communicated with the exhaust passage 5, or the first groove 31 is configured as a part of the exhaust passage 5. Exemplarily, the first groove 31 may be provided on the inner surface of the side wall of the sealing seat 3, and a first groove 31 may be provided on the inner surface of the side wall of the sealing seat 3, and the first groove 31 is communicated with the exhaust passage 5. The first groove 31 may also be a part of the exhaust passage 5, for example, it may be a section of the exhaust passage 5.

[0049] In some embodiments, see Figure 6 , Figure 8 and Fig. 9 At least one second groove 32 extending radially along the sealing seat 3 may be provided at one end of the sealing seat 3 near the sensing through hole 42, and the second groove 32 is connected to the first groove 31. Exemplarily, a second groove 32 may be provided on the sealing seat 3, and the second groove 32 is connected to the first groove 31. The second groove 32 may also be a part of the exhaust channel 5, for example, a section of the exhaust channel 5.

[0050] In some embodiments, see Figure 5 , Figure 6 , Figure 8 and Fig. 9, the sealing seat 3 has a receiving chamber 33 inside, and the receiving chamber 33 can be used to accommodate the airflow sensor 2. The notch 413 on the side wall 411 of the mounting cavity 41 can be connected with the second slot 32 and the first slot 31 in sequence, and together form an exhaust channel 5, so that the space on the side of the airflow sensor 2 facing the sensing through hole 42 is connected with the outside of the mounting cavity 41, so that when there is aerosol reverse reflux, at least part of the gas can pass through the exhaust channel 5, and reduce the chance of forming a positive pressure in the space above the airflow sensor 2, reduce the possibility of self-starting or damage of the airflow sensor 2, and play a certain protective role for the airflow sensor 2. As some exemplary usage scenarios, in the process of installing the airflow sensor 2 and the sealing seat 3 into the mounting cavity 41 of the bracket 4, if the sensing through hole 42 is likely to be blocked, the airflow sensor 2 and the sealing seat 3 will compress the air in the mounting cavity 41 to increase the internal air pressure, and the exhaust channel 5 can exhaust the air to relieve the air pressure, thereby preventing the airflow sensor 2 from starting due to the increase in air pressure in the space on one side.

[0051] In some embodiments, at least one second groove 32 extending radially along the sealing seat 3 may be provided at one end of the sealing seat 3 near the sensing through hole 42, and a part of the exhaust channel 5 may be defined between the second groove 32 and the inner surface of the mounting cavity 41, and the exhaust channel 5 enables the space on the side of the airflow sensor 2 facing the sensing through hole 42 to communicate with the outside of the mounting cavity 41. A gap may be formed between the outer wall of the sealing seat 3 and the inner wall of the mounting cavity 41, and the gap may be defined by the outer wall of the sealing seat 3 and the notch 413 on the mounting cavity 41, or by the inner wall of the mounting cavity 41 and the first groove 31 provided on the outer wall of the sealing seat. The second groove 32 may connect the inside of the sealing seat 3 and the gap, so that the space on the side of the airflow sensor 2 facing the sensing through hole 42 is connected with the outside of the mounting cavity 41. Therefore, when there is reverse reflux of aerosol, at least part of the gas may pass through the exhaust channel 5, thereby reducing the chance of forming a positive pressure in the space above the airflow sensor 2, reducing the possibility of self-starting or damage of the airflow sensor 2, and playing a certain protective role for the airflow sensor 2.

[0052] In some embodiments, see Figure 3 , Figure 4 and Figure 5, the airflow sensor has a lead 7, at least a portion of which is received in the first slot body 31 or the second slot body 32. The lead 7 can electrically connect the airflow sensor 2 to the power supply of the electronic atomization device 100, and a portion of the lead 7 can be passed through the exhaust channel 5. On the one hand, the lead 7 can be better placed, and on the other hand, the presence of the lead 7 can always keep a gap of appropriate size at the connection between the notch 413, the second slot body 32 and the first slot body 31, and the gap can be passed through by the reflux aerosol, thereby preventing the airflow sensor 2 from self-starting or being damaged. In addition, the above gap has a smaller size. When the user inhales normally, the negative pressure in the airflow channel 1 is transmitted to the space on one side of the airflow sensor 2 through the sensing through hole 42, and the air outside the installation cavity 41 cannot enter the space through the exhaust channel 5 in time, so that the negative pressure in the space can be maintained, ensuring that the airflow sensor 2 can be triggered normally.

[0053] In some embodiments, see Figure 8 and Fig. 9 , at least one protrusion 34 is provided on the inner side of the end of the sealing seat 3 away from the sensing through hole 42, and one side of the airflow sensor 2 abuts against the protrusion 34. At least one protrusion 34 can be provided on the inner side of the end of the sealing seat 3 away from the sensing through hole 42 (that is, the end of the accommodating cavity 33 away from the sensing through hole 42), and the protrusion 34 has a certain height, and the airflow sensor 2 can be placed on the protrusion 34, so that the protrusion 34 can lift the airflow sensor 2 and make the bottom of the airflow sensor 2 communicate with the first slot body 31. Exemplarily, the protrusion 34 can be constructed as an annular protrusion 34, and the annular protrusion is not closed, and a connecting groove 35 is formed at the open position, the connecting groove 35 is connected to the first slot body 31, and the connecting groove 35 can allow a part of the lead 7 to pass through. In other embodiments, the protrusion 34 can be a plurality of bone positions spaced apart and having the same height, one side of the airflow sensor 2 abuts against the bone position, the gaps between the bone positions can be connected to the first slot body 31, and the lead 7 can pass through the gaps.

[0054] In some embodiments, see Figure 8 and Fig. 9A limiting portion 36 is provided at one end of the accommodating cavity 33 of the sealing seat 3 opposite to the protruding portion 34, and the radial distance of the limiting portion 36 is smaller than the radial distance of the accommodating cavity 33. Since the sealing seat 3 can be flexible, for example, the sealing seat 3 can be a silicone seat. After the airflow sensor 2 is installed in the silicone seat through the opening of the accommodating cavity 33, the limiting member can limit the airflow sensor 2 in the accommodating cavity 33 to prevent the airflow sensor 2 from shaking and being damaged during use or transportation; in addition, when the sealing member 3 with the airflow sensor 2 installed has not been installed in the installation cavity 41 of the bracket 4, if there is no limiting member, the airflow sensor 2 may fall out of the accommodating cavity 33 during transportation.

[0055] In some embodiments, see 1. Figure 2 and Figure 3 , the side of the bracket 4 away from the airflow sensor 2 is constructed with a first step portion 43 and a second step portion 44; the sensing through hole 42 is opened on the first step portion 43; the airflow channel 1 passes through the second step portion 44, wherein the second step portion 44 is closer to the air inlet 101 of the airflow channel 1 than the first step portion 43. In addition, the height of the first step portion 43 along the extension direction of the electronic atomization device 100 is higher than the height of the second step portion 44 (exemplarily, the suction nozzle is set as the highest height of the electronic atomization device 100), so when the aerosol condenses into a liquid state at the first step portion 43 during the reflux process, it can flow from the first step portion 43 to the second step portion 44, and reduce the stay at the first step portion 43, thereby reducing the probability of the condensed aerosol being retained in the first step portion 43 and flowing back into the airflow sensor 2 through the sensing through hole 42.

[0056] For further information, see Figure 4 and Figure 5 , a liquid absorbent cotton 8 may be arranged in the concave cavity of the second step portion 44, and the shape of the liquid absorbent cotton 8 may be adapted to the shape of the concave cavity of the second step portion 44. The liquid absorbent cotton 8 may absorb the condensed aerosol flowing from the first step portion 43 to the second step portion 44, or absorb the aerosol condensed on the second step portion 44, thereby keeping the inside of the electronic atomization device 100 clean and dry. A liquid absorbent cotton through hole 81 may be opened in the middle of the liquid absorbent cotton 8, and the liquid absorbent cotton through hole 81 is connected to the airflow channel 1 for airflow to pass through, or the liquid absorbent cotton through hole 81 may be a part of the airflow channel 1.

[0057] In some embodiments, see Figure 6 and Figure 7, the size of the air hole through which the airflow channel 1 passes on the bracket 4 can be larger than the size of the sensing through hole 42. By setting the radial size of the airflow channel 1 to be larger than the radial size of the sensing through hole 42, when the aerosol flows back from the suction nozzle 102 to the air inlet 101, more of it can pass through the airflow channel 1, and only a small part enters the sensing through hole 42, thereby reducing the probability of the aerosol passing through the sensing through hole 42, thereby preventing the airflow sensor 2 from starting or being damaged.

[0058] In some embodiments, see Figure 5 and Figure 6 The electronic atomization device 100 includes a heating component 9, an airflow channel 1, an airflow sensor 2, a sealing seat 3 and a bracket 4, wherein the airflow channel 1 provides a path for airflow to pass through the inside of the electronic atomization device 100; the airflow sensor 2 is used to sense airflow changes in the airflow channel; the sealing seat 3 at least partially surrounds the airflow sensor 2; a mounting cavity 41 is defined on the bracket 4, and the mounting cavity 41 is used to accommodate the sealing seat 3 and the airflow sensor 2; wherein, at least one first groove body 31 extending longitudinally along the sealing seat 3 is provided on the inner surface of the sealing seat 3, and at least one second groove body 32 extending radially along the sealing seat 3 is provided at one end of the sealing seat 3, and the second groove body 32 is connected to the first groove body 31; the airflow sensor 2 has a lead 7, and at least a portion of the lead 7 is received in the first groove body 31 or the second groove body 32. When the airflow containing aerosol in the heating component 9 flows back in reverse, part of the airflow flows back into the airflow channel 1, and the other part of the airflow passes through the sensing through hole 42 and enters the space on the side of the airflow sensor 2 facing the sensing through hole 42, and is discharged to the outside of the mounting cavity 41 in time through the second slot body 32 and the first slot body 31, so that a pressure difference cannot be formed on both sides of the airflow sensor 2, thereby preventing the airflow sensor 2 from self-starting or being damaged. The lead 7 can electrically connect the airflow sensor 2 to the power supply of the electronic atomization device 100, and a part of the lead 7 can be passed through the exhaust channel 5. On the one hand, the lead 7 can be better placed, and on the other hand, the presence of the lead 7 can always keep a gap of appropriate size at the connection between the second slot body 32 and the first slot body 31, and the gap can be used for the reflux aerosol to pass through, thereby preventing the airflow sensor 2 from self-starting or being damaged.

[0059] In some embodiments, see Figure 3 , Figure 4 , Figure 5 , Figure 6 and Fig. 9When the user uses the electronic atomization device 100, the user can inhale through the suction nozzle 102, so that the external air can enter the electronic atomization device 100 through the air inlet 101, and the airflow sensor 2 can sense the change in air pressure and start the heating component 9 to work, and the aerosol generated by heating can flow to the suction nozzle 102 through the airflow channel 1 for the user to inhale. In some implementation scenarios, for the fun of inhalation (some users also do it subconsciously), the user will spit the aerosol inhaled in the mouth into the electronic atomization device 100 through the suction nozzle 102. After the aerosol is spit out, it will flow back inside the electronic atomization device 100, most of it can flow out from the air inlet 101 through the air flow channel 1, and a small part will flow into the inside of the installation cavity 41 through the sensing through hole 42, and most of the aerosol flowing through the inside of the installation cavity 41 can smoothly flow to the outside of the installation cavity 41 through the exhaust channel 5, and finally flow out from the air inlet 101, thereby reducing the chance of forming a positive pressure in the space above the air flow sensor 2, reducing the possibility of self-starting or damage of the air flow sensor 2, and playing a certain protective role for the air flow sensor 2. Therefore, the embodiment of the present application provides an electronic atomization device 100, which can effectively prevent the air flow sensor 2 from self-starting or being damaged when the aerosol flows back.

[0060] It should be noted that the preferred embodiments of the present application are given in the specification and drawings of the present application, but are not limited to the embodiments described in the specification. Furthermore, it is possible for a person of ordinary skill in the art to make improvements or changes based on the above description, and all such improvements and changes should fall within the scope of protection of the claims attached to the present application.

Claims

1. An electronic atomization device, characterized in that: include: An airflow channel, providing a path for airflow to pass through inside the electronic atomization device; An airflow sensor, used for sensing airflow changes in the airflow channel; a sealing seat at least partially surrounding the airflow sensor; A bracket, wherein a mounting cavity is defined on the bracket, and the mounting cavity is used to accommodate the sealing seat and the airflow sensor; Among them, the bracket is provided with a sensing through hole connecting the installation cavity and the airflow channel, an exhaust channel is defined between the sealing seat and the inner surface of the installation cavity, or an exhaust channel is defined between the inner surface of the sealing seat and the airflow sensor, and the exhaust channel connects the space on the side of the airflow sensor facing the sensing through hole with the outside of the installation cavity.

2. The electronic atomization device according to claim 1, characterized in that: A boss is formed on a side of the bracket facing away from the installation cavity, and the boss at least partially surrounds the sensing through hole to prevent liquid from flowing back to the airflow sensor.

3. The electronic atomization device according to claim 1, characterized in that: A buffer member for absorbing liquid is arranged on a side of the bracket facing away from the installation cavity, and the buffer member is distributed around at least a portion of the edge of the sensing through hole.

4. The electronic atomization device according to claim 1, characterized in that: The installation cavity is surrounded by a bottom wall and side walls, and a notch is provided on the side wall of the installation cavity; The notch is communicated with the exhaust passage, or the notch is configured as a part of the exhaust passage.

5. The electronic atomization device according to claim 1, characterized in that: At least one first groove extending in the longitudinal direction of the sealing seat is formed on the inner surface of the sealing seat; The first groove body is in communication with the exhaust passage, or the first groove body is configured as a part of the exhaust passage.

6. The electronic atomization device according to claim 5, characterized in that: At least one second slot body extending radially along the sealing seat is formed at one end of the sealing seat close to the sensing through hole, and the second slot body is communicated with the first slot body.

7. The electronic atomization device according to claim 6, characterized in that: The airflow sensor has a lead wire, and at least a portion of the lead wire is received in the first slot body or the second slot body.

8. The electronic atomization device according to claim 1, characterized in that: At least one second groove body extending radially along the sealing seat is formed at one end of the sealing seat close to the sensing through hole, and a part of the exhaust passage is defined between the second groove body and the inner surface of the installation cavity.

9. The electronic atomization device according to claim 1, characterized in that: At least one protrusion is arranged on the inner side of the sealing seat away from one end of the sensing through hole, and one side of the airflow sensor abuts against the protrusion.

10. The electronic atomization device according to claim 1, characterized in that: The side of the bracket away from the airflow sensor is configured with a first step portion and a second step portion; The sensing through hole is opened on the first step portion; The air flow channel passes through the second step portion; Wherein, the second stepped portion is closer to the air inlet hole of the air flow channel than the first stepped portion.

11. An electronic atomization device, characterized in that: include: An airflow channel, providing a path for airflow to pass through inside the electronic atomization device; An airflow sensor, used for sensing airflow changes in the airflow channel; a sealing seat at least partially surrounding the airflow sensor; A bracket, wherein a mounting cavity is defined on the bracket, and the mounting cavity is used to accommodate the sealing seat and the airflow sensor; wherein at least one first groove body extending longitudinally along the sealing seat is provided on the inner surface of the sealing seat, and at least one second groove body extending radially along the sealing seat is provided at one end of the sealing seat, and the second groove body is connected to the first groove body; the airflow sensor has a lead, and at least a part of the lead is received in the first groove body or the second groove body.

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