Electronic atomization device

Abstract

The utility model relates to the technical field of smoking sets, and discloses an electronic atomization device which comprises a shell, an atomization assembly and a control assembly. The airflow sensing switch is used for sensing airflow change in the airflow channel; an accommodating cavity for mounting the airflow sensing switch and a first through hole extending away from the accommodating cavity are defined in the protection piece, and the accommodating cavity is communicated with the airflow channel through the first through hole; the side, away from the containing cavity, of the protection piece is provided with a wall face, the first through hole communicates with or penetrates through the wall face, the protection piece is provided with at least one pressure relief channel communicating with the first through hole, and the pressure relief channel is configured to provide an air guide path between the interior and the exterior of the containing cavity, the air flow sensing switch can be prevented from self-starting due to air trapping.

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, in order to protect the airflow sensor switch, a protective cover is usually placed around the airflow sensor switch. However, during the assembly of the protective cover or the transportation of the electronic atomizer device, the airflow sensor switch often starts automatically due to negative pressure formed by trapped air in the protective cover. Utility Model Content

[0004] The embodiment of the present application provides an electronic atomization device, which can prevent the airflow sensing switch from self-activating due to trapped air.

[0005] An embodiment of the present application provides an electronic atomization device, comprising: a shell, wherein the shell has an airflow channel for airflow; an airflow sensing switch for sensing airflow changes in the airflow channel; a protective member, wherein the protective member defines a accommodating cavity for installing the airflow sensing switch and a first through hole extending away from the accommodating cavity, and the accommodating cavity is connected to the airflow channel through the first through hole; wherein the protective member has a wall on the side away from the accommodating cavity, the first through hole is connected to or penetrates the wall, and at least one pressure relief channel connected to the first through hole is provided on the protective member, and the pressure relief channel is configured to provide an air guide path between the inside and outside of the accommodating cavity so that the airflow does not pass through the wall.

[0006] In some embodiments, the pressure relief channel includes a groove recessed from the wall surface or a hole laterally connected to the first through hole.

[0007] In some embodiments, the pressure relief channel includes two intersecting grooves recessed from the wall surface; and the first through hole extends from the intersection of the two grooves to the accommodating cavity.

[0008] In some embodiments, a fixing member is further disposed in the shell, and the fixing member is disposed on a side of the protective member away from the wall surface, and the fixing member is used to support the airflow sensing switch so that the airflow sensing switch is maintained in the accommodating cavity.

[0009] In some embodiments, at least one concave cavity is formed on a side of the protective member away from the fixing member; the concave cavity is connected to the accommodating cavity through the first through hole.

[0010] In some embodiments, the protective member is provided with a second through hole penetrating two opposite sides, the second through hole is spaced apart from the accommodating cavity, and one end of the second through hole extends into the concave cavity.

[0011] In some embodiments, the second through hole is constructed as a part of the air flow channel.

[0012] In some embodiments, a buffer is disposed in the cavity, and a third through hole is formed in the buffer; at least a portion of the wall surface is located in the third through hole.

[0013] In some embodiments, the fixing member includes a circuit board for holding the airflow sensing switch, and the protecting member includes a flexible sealing member, which at least partially surrounds the airflow sensing switch and abuts against a surface of the circuit board.

[0014] In some embodiments, the protective member includes a support frame for supporting the airflow sensing switch, the accommodating cavity is opened in the support frame, and a sealing seat is also provided on the periphery of the airflow sensing switch. The sealing seat and the airflow sensing switch are jointly accommodated inside the accommodating cavity.

[0015] The beneficial effects of the embodiments of the present application include at least:

[0016] The embodiment of the present application provides an electronic atomization device, which is installed in the accommodating cavity of the protective member, and is connected to the airflow channel opened in the shell through the first through hole opened on the protective member; the protective member has a wall on the side away from the accommodating cavity, so that the first through hole is connected or penetrates the wall, and at least one pressure relief channel connected to the first through hole is provided on the protective member, and the pressure relief channel can provide an air guide path between the inside and outside of the accommodating cavity without the airflow passing through the wall. Therefore, during the installation or transportation of the airflow sensing switch, when the end of the wall away from the accommodating cavity is blocked by a workpiece or other object, the gas in the accommodating cavity can be discharged through the pressure relief channel, and no pressure difference will be formed on both sides of the airflow sensing switch, thereby preventing the airflow sensing switch from self-starting due to trapped air. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] 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.

[0018] Figure 1 It is a cross-sectional schematic diagram of an electronic atomization device provided in one embodiment of the present application.

[0019] Figure 2It is a schematic diagram of the structure of a protective element provided in one embodiment of the present application.

[0020] Figure 3 It is a schematic diagram of the structure of a protective element provided in another embodiment of the present application.

[0021] Figure 4 yes Figure 2 A schematic diagram of the protective member shown from another perspective.

[0022] Figure 5 It is a structural schematic diagram of a fixing member and an airflow sensing switch provided in one embodiment of the present application.

[0023] Figure 6 It is a schematic diagram of an exploded view of an electronic atomization device provided in one embodiment of the present application.

[0024] Figure 7 It is a schematic diagram of the structure of a buffer provided in one embodiment of the present application.

[0025] Figure 8 It is a schematic structural diagram of a protective component provided in yet another embodiment of the present application.

[0026] Fig. 9 It is a schematic cross-sectional diagram of the matching of a protective member, an airflow sensing switch and a sealing seat provided in one embodiment of the present application.

[0027] The reference numerals are as follows:

[0028] 1-housing; 11-airflow channel; 12-first housing; 13-second housing;

[0029] 2- Air flow sensor switch;

[0030] 3-protection member; 31-accommodation cavity; 32-first through hole; 33-wall surface; 34-protrusion; 341-pressure relief channel; 35-second through hole; 351-boss; 36-support member; 37-sixth through hole; 38-flexible sealing member; 39-support frame;

[0031] 4-fixing member; 41-fixing member through hole; 42-fifth through hole; 43-circuit board;

[0032] 5-concave cavity;

[0033] 6-buffer; 61-third through hole; 62-fourth through hole; 63-connecting groove; 64-seventh through hole; 7-sealing seat. DETAILED DESCRIPTION

[0034] 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.

[0035] 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.

[0036] 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.

[0037] 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.

[0038] See also Figure 1 , Figure 2 , Figure 3 and Figure 4The embodiment of the present application provides an electronic atomization device, including: a shell 1, an airflow sensing switch 2 and a protective member 3, the shell 1 has an airflow channel 11 for airflow to pass through; the airflow sensing switch 2 is used to sense the airflow change in the airflow channel 11, the protective member 3 is defined with a accommodating chamber 31 for installing the airflow sensing switch 2 and a first through hole 32 extending away from the accommodating chamber 31, the accommodating chamber 31 is connected to the airflow channel 11 through the first through hole 32; wherein, the protective member 3 has a wall 33 on the side away from the accommodating chamber 31, the first through hole 32 is connected to or penetrates the wall 33, and at least one pressure relief channel 341 connected to the first through hole 32 is provided on the protective member 3, and the pressure relief channel 341 is configured to provide an air guide path between the inside and outside of the accommodating chamber 31 so that the airflow does not pass through the wall 33. The airflow sensing switch 2 is installed in the accommodating cavity 31 of the protective member 3, and is connected with the airflow channel 11 opened in the housing 1 through the first through hole 32 opened on the protective member 3; because the protective member 3 has a wall surface 33 on the side away from the accommodating cavity 31, the first through hole 32 is connected to or penetrates the wall surface 33, and at least one pressure relief channel 341 connected to the first through hole 32 is provided on the protective member 3, and the pressure relief channel 341 can provide an air guide path between the inside and outside of the accommodating cavity 31 so that the airflow does not pass through the wall surface 33. Therefore, during the installation or transportation of the airflow sensing switch 2, when the end of the wall surface 33 away from the accommodating cavity 31 is blocked by a workpiece or other object, the gas in the accommodating cavity 31 can be discharged through the pressure relief channel 341, and no pressure difference will be formed on both sides of the airflow sensing switch 2, thereby preventing the airflow sensing switch 2 from self-starting due to trapped air.

[0039] The airflow channel 11 may refer to a combination of all channels from the air inlet to the nozzle in the electronic atomization device, or may refer to a certain section of the channel connected to the first through hole 32. The wall surface 33 may refer to a side of the protrusion 34 extending away from the accommodating chamber 31 on the protective member 3, the first through hole 32 may be connected to the protrusion 34 or pass through the protrusion 34, and a pressure relief channel 341 connected to the first through hole 32 may be constructed on the protrusion 34, so that when the wall surface 33 at one end of the protrusion 34 away from the accommodating chamber 31 is blocked, the gas in the accommodating chamber 31 may be discharged through the pressure relief channel 341.

[0040] In some embodiments, the pressure relief channel 341 includes: Figure 2 The groove recessed from the wall 33 as shown, or Figure 3 The hole shown is laterally connected to the first through hole 32, so that when the wall 33 is blocked, the gas in the accommodating chamber 31 can be discharged through the pressure relief channel 341, and no pressure difference will be formed on both sides of the airflow sensing switch 2, thereby preventing the airflow sensing switch 2 from self-starting due to trapped air.

[0041] Optionally, see Figure 2 , the pressure relief channel 341 can be opened at the end of the protrusion 34 away from the accommodating chamber 31, the pressure relief channel 341 can be a groove recessed from the wall surface 33, the groove can extend from the wall surface 33 to the accommodating chamber 31, the groove is connected with the first through hole 32, and the first through hole 32 can penetrate the wall surface 33. In other embodiments, the pressure relief channel 341 on the protrusion 34 can be a plurality of grooves, and the plurality of grooves can also be opened on the side of the protrusion 34, each groove is connected with the first through hole 32, and the first through hole 32 is a blind hole, which does not penetrate the wall surface 33. When one or more of the grooves are blocked, the gas in the accommodating chamber 31 can be discharged through the passage formed by the first through hole 32 and the remaining grooves, so as to prevent the airflow sensing switch 2 from self-starting.

[0042] Optionally, see Figure 3 , the pressure relief channel 341 on the protrusion 34 can be one or more holes connected to the first through hole 32, wherein the first through hole 32 can penetrate the entire wall surface 33. When the wall surface 33 is blocked, that is, when the side of the first through hole 32 away from the accommodating chamber 31 is blocked, the gas in the accommodating chamber 31 can be discharged through the hole provided on the protrusion 34. In other embodiments, the protrusion 34 can be provided with a plurality of pressure relief channels 341, the pressure relief channels 341 are holes, the first through hole 32 is connected to the holes, and the first through hole 32 does not penetrate the wall surface 33. Therefore, the channel formed by the first through hole 32 and the hole can be both the start-up channel of the airflow sensing switch 2 and the pressure relief channel of the gas in the accommodating chamber 31. Exemplarily, when one or more holes are blocked, the gas in the accommodating chamber 31 can still discharge the internal gas through the remaining holes, thereby achieving the effect of pressure relief and preventing the airflow sensing switch 2 from self-starting.

[0043] In some embodiments, see Figure 2 and Figure 4 , the pressure relief channel 341 includes two intersecting grooves recessed from the wall surface 33; and the first through hole 32 extends from the intersection of the two grooves to the accommodating chamber 31. Exemplarily, the pressure relief channel 341 is opened on the protrusion 34, and the protrusion 34 can be constructed as a cylindrical shape. The two grooves extend from the wall surface 33 of the protrusion 34 to the direction of the accommodating chamber 31. The two grooves can be arranged perpendicular to each other, and the two grooves can respectively pass through the two radial ends of the protrusion 34, so that the two grooves can form a "ten" structure at the end of the protrusion 34 away from the wall surface 33 of the accommodating chamber 31. Therefore, when the wall surface 33 is blocked, the gas in the accommodating chamber 31 can be discharged from the two ends of the groove, so as to avoid the pressure difference on both sides of the airflow sensing switch 2 and self-starting.

[0044] In some embodiments, see Figure 5, a fixing member 4 may also be provided in the housing 1, and the fixing member 4 may be provided on the side of the protective member 3 away from the wall surface 33, and the fixing member 4 is used to support the airflow sensing switch 2 so that the airflow sensing switch 2 is kept in the accommodating chamber 31. On the one hand, the fixing member 4 can support the airflow sensing switch 2 and the protective member 3; on the other hand, the protective member 3 may be sleeved on the fixing member 4, and the protective member 3 may be made of soft materials such as silica gel, and is used to protect the fixing member 4 and the airflow sensing switch 2. Specifically, the accommodating chamber 31 of the protective member 3 may be sleeved on the periphery of the airflow sensing switch 2, and the side of the protective member 3 close to the airflow sensing switch 2 may abut against the fixing member 4. As some exemplary usage scenarios, because the protective member 3 is sleeved on the periphery of the airflow sensing switch 2 through the accommodating chamber 31, a channel for starting the airflow sensing switch 2 through the first through hole 32 can be formed when the user inhales. However, in the process of assembling the protective member 3 and the airflow sensing switch 2, there is a possibility that the first through hole 32 is blocked, resulting in the airflow sensing switch 2 being self-activated when the electronic atomization device is not in use. Because the airflow sensing switch 2 in the accommodating chamber 31 may form a pressure difference on both sides due to trapped air after the first through hole 32 is blocked. That is, when the accommodating chamber 31 of the protective member 3 is sleeved on the periphery of the airflow sensing switch 2, the first through hole 32 may be blocked by a workpiece or other object, so that in the process of sleeved on the periphery of the airflow sensing switch 2, the space in the accommodating chamber 31 will be gradually compressed as the installation progresses, and the gas in the accommodating chamber 31 has no channel for discharge, resulting in the air pressure in the accommodating chamber 31 becoming larger and larger, thereby gradually increasing the pressure difference formed on both sides of the airflow sensing switch 2, and finally reaching the range of triggering the airflow sensing switch 2 to start. In the electronic atomization device of this embodiment, because a plurality of pressure relief channels 341 connected to the first through hole 32 are provided on the protruding portion 34, when the first through hole 32 is blocked, the gas in the accommodating chamber 31 can flow out through the pressure relief channel 341, thereby avoiding the pressure difference on both sides of the airflow sensing switch 2 and self-starting.

[0045] In some embodiments, the fixing member 4 may be provided with a fixing member through hole 41 , and the fixing member through hole 41 may be connected to the air flow channel 11 or the fixing member through hole 41 may be a part of the air flow channel 11 .

[0046] In some embodiments, Figure 1 , Figure 2 and Figure 3, at least one concave cavity 5 is provided on one side of the protective member 3 away from the fixing member 4; the concave cavity 5 is connected to the accommodating cavity 31 through the first through hole 32. The setting of the concave cavity 5 can accommodate liquids such as the smoke oil or condensed aerosol leaked from the oil storage bin of the electronic atomization device to a certain extent. As some exemplary usage scenarios, when the smoke oil or condensed aerosol leaked from the oil storage bin of the electronic atomization device flows into the concave cavity 5, there is a possibility that it will flow into the accommodating cavity 31 through the first through hole 32. Through the structural setting of the protrusion 34, a certain amount of liquid flowing into the concave cavity 5 is blocked, thereby protecting the airflow sensing switch 2 and the fixing member 4. Illustratively, the wall 33 may extend from the bottom of the concave cavity 5 in a direction away from the accommodating cavity 31, so that when the smoke oil or condensed aerosol leaked from the oil storage bin of the electronic atomization device flows into the concave cavity 5, since the protrusion 34 has a certain height relative to the bottom of the concave cavity 5, liquids such as the smoke oil or condensed aerosol cannot flow into the accommodating cavity 31 through the first through hole 32 opened in the protrusion 34, thereby protecting the airflow sensing switch 2 and the fixing member 4 from erosion or damage by liquids such as the smoke oil or condensed aerosol.

[0047] In some embodiments, see Figure 2 and Figure 4 , the protective member 3 may be provided with a second through hole 35 penetrating through two opposite sides, the second through hole 35 is spaced apart from the accommodating cavity 31, and one end of the second through hole 35 extends into the concave cavity 5. That is, the second through hole 35 connects one side of the concave cavity 5 of the protective member 3 and one side of the accommodating cavity 31, and the second through hole 35 is respectively connected with the first through hole 32 and the through hole 41 of the fixing member, so that the gas entering the electronic atomization device through the air inlet hole can enter the side of the protective member 3 away from the fixing member 4 from the side of the protective member 3. When the user inhales, the gas outside the electronic atomization device passes through the fixing member through hole 41 and the second through hole 35 in sequence through the air inlet, a certain negative pressure can be formed near the first through hole 32, and the negative pressure can be transmitted to the accommodating cavity 31 through the first through hole 32, so that an air pressure difference is formed on both sides of the airflow sensing switch 2, thereby starting it.

[0048] In some embodiments, see Figure 2, a boss 351 is provided around the edge of the second through hole 35 near the concave cavity 5. As some exemplary use scenarios, when the smoke oil or condensed aerosol leaked from the oil storage bin of the electronic atomization device flows into the concave cavity 5, there is a possibility that it will flow to the fixing member 4 through the second through hole 35. By setting the boss 351, a certain amount of liquid flowing into the concave cavity 5 can be blocked, thereby protecting the fixing member 4. The boss 351 can extend from the bottom of the concave cavity 5 to the direction away from the accommodating cavity 31, so that when the smoke oil or condensed aerosol leaked from the oil storage bin of the electronic atomization device flows into the concave cavity 5, since the boss 351 has a certain height relative to the bottom of the concave cavity 5, the smoke oil or condensed aerosol and other liquids cannot flow to the fixing member 4 through the second through hole 35 opened in the middle of the boss 351, thereby protecting the airflow sensing switch 2 and the fixing member 4 fixed on the fixing member 4 from being eroded or damaged by the smoke oil or condensed aerosol and other liquids.

[0049] In some embodiments, see Figure 2 , Figure 4 and Figure 5 , the second through hole 35 can also be constructed as a part of the airflow channel 11. The second through hole 35 can be connected to the fixing member through hole 41, and the second through hole 35 and the fixing member through hole 41 can both be constructed as a part of the airflow channel 11, so that the gas entering the electronic atomization device through the air inlet hole can enter the side of the protective member 3 away from the fixing member 4 from the side away from the protective member 3. Further, as Figure 6 As shown, since the protective member 3 is made of soft material, in order to prevent the second through hole 35 from being blocked or deformed by external forces such as extrusion during installation or use, a support member 36 can be provided inside the second through hole 35. The support member 36 is through-through, for example, it can be a hollow steel pipe, so that the second through hole 35 can be well supported without being deformed or blocked by force, thereby ensuring the smooth flow of the airflow channel 11; and the electronic atomization device can have a relatively stable suction resistance when inhaling, and maintain a good suction taste.

[0050] In some embodiments, see Figure 1 and Figure 7 , a buffer 6 may be provided in the concave cavity 5, and the buffer 6 has a third through hole 61; at least a portion of the wall surface 33 is located in the third through hole 61. By providing the buffer 6 in the concave cavity 5, the buffer 6 may be fiber cotton, which can absorb the smoke oil or condensed aerosol leaking from the oil storage bin of the electronic atomization device in the concave cavity 5, thereby reducing the risk of the smoke oil or condensed aerosol flowing to the fixing member 4 and the airflow sensing switch 2 on the one hand, and keeping the inside of the electronic atomization device dry and clean on the other hand, ensuring the smoking taste. Figure 7As shown, the buffer 6 may be provided with a third through hole 61 and a fourth through hole 62, wherein the third through hole 61 is used for the protrusion 34 to pass through, and the fourth through hole 62 is used for the boss 351 of the second through hole 35 to pass through. Furthermore, a connecting groove 63 may be provided between the third through hole 61 and the fourth through hole 62, and the connecting groove 63 may connect the third through hole 61 and the fourth through hole 62, so that when the user draws the electronic atomization device, the negative pressure formed may be better transmitted to the accommodating cavity 31 through the second through hole 35 and the first through hole 32, thereby activating the airflow sensing switch 2, and avoiding the blocking of the negative pressure transmission when the connecting groove 63 is not provided on the buffer 6, so as not to reduce the sensitivity of the airflow sensing switch 2.

[0051] In some embodiments, see Figure 2 , Figure 4 , Figure 5 , Figure 6 and Figure 7 , a heating part, a power supply and an electrode are provided in the electronic atomization device, and the power supply can be connected to the heating part through the electrode and supply power to the heating part. By respectively opening a fifth through hole 42, a sixth through hole 37 and a seventh through hole 64 on the fixing part 4, the protective part 3 and the buffer part 6, the electrode can pass through the fifth through hole 42, the sixth through hole 37 and the seventh through hole 64 in sequence and be electrically connected to the heating part. Among them, a protrusion is provided at one end of the sixth through hole 37 opened on the protective part 3 away from the fixing part 4, and the protrusion extends along the bottom of the concave cavity 5 in a direction away from the accommodating cavity 31, and has a certain height, so as to prevent the oil or condensed aerosol leaking from the oil storage bin of the electronic atomization device from flowing to the fixing part 4, the airflow sensing switch 2 or the battery. The protrusion is penetrated in the sixth through hole 37 opened in the buffer part 6.

[0052] In some embodiments, see Figure 1 , Figure 4 and Figure 5 The fixing member 4 may include a circuit board 43 for holding the airflow sensing switch 2, and the protective member 3 includes a flexible seal 38, which at least partially surrounds the airflow sensing switch 2 and abuts against the surface of the circuit board 43. The airflow sensing switch 2 is electrically connected to the circuit board 43, and the airflow sensing switch 2 may be welded on the circuit board 43. Exemplarily, the flexible seal 38 may be a silicone ring, which may be wrapped around the outer periphery of the airflow sensing switch 2, and one end of the silicone ring away from the first through hole 32 abuts against the circuit board 43, so that the end of the accommodating cavity 31 away from the first through hole 32 is in a sealed state, so that the user can transfer the airflow change through the first through hole 32 to the accommodating cavity 31 through suction, and form an air pressure difference on both sides of the airflow sensing switch 2, thereby ensuring the normal start-up and sensitivity of the airflow sensing switch 2.

[0053] In some embodiments, see Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 6 As shown, two airflow sensing switches 2 may be provided in the shell 1, and the two airflow sensing switches 2 have independent start-up channels respectively. Exemplarily, the protective member 3 includes a first part and a second part that are symmetrically arranged, wherein the first part and the second part are both surrounded by a concave cavity 5, and the two concave cavities 5 are both provided with an airflow channel 11, and the two airflow channels 11 cannot be connected to the nozzle of the electronic atomization device at the same time, that is, the airflow sensing switches 2 corresponding to the first part and the second part cannot be started at the same time. That is, the user can selectively connect the nozzle of the electronic atomization device with the connected airflow channel 11 of the first part or the airflow channel 11 where the second part is located. When the airflow channel 11 of the first part is connected to the nozzle, the airflow sensing switch 2 corresponding to the first part works; when the airflow channel 11 of the second part is connected to the nozzle, the airflow sensing switch 2 corresponding to the second part works. In addition, the first part and the second part can be connected to a heating part respectively, and when the airflow sensing switch 2 of the first part works, the corresponding heating part is started, and when the airflow sensing switch 2 of the second part works, the other heating part is started. In some embodiments, please refer to Figure 6 The housing 1 includes a first housing 12 and a second housing 13. The first housing 12 and the second housing 13 can be connected and protect the protective member 3, the fixing member 4 and the power supply and other components therein. The housing 1 can be a part of the electronic atomization device, which together with the heating part, the oil storage tank and the nozzle forms the electronic atomization device.

[0054] In other embodiments, see Figure 8 and Fig. 9The protective member 3 includes a support frame 39 for supporting the airflow sensing switch 2, and the accommodating cavity 31 is opened in the support frame 39. A sealing seat 7 may also be provided on the periphery of the airflow sensing switch 2, and the sealing seat 7 and the airflow sensing switch 2 are accommodated together in the accommodating cavity 31. The sealing seat 7 may be made of a soft material such as silica gel, and may be constructed into a groove type with a single-side opening, and the airflow sensing switch 2 is installed into the sealing seat 7 through the opening of the sealing seat 7. In addition, a protrusion may be constructed on the inner edge of the opening of the sealing seat 7. For example, the protrusion may be an annular protrusion, and the radial distance of the annular protrusion is smaller than the radial distance of the airflow sensing switch 2, so that the airflow sensing switch 2 can be limited. After the airflow sensing switch 2 is installed in the sealing seat 7, the sealing seat 7 is installed in the accommodating cavity 31 of the protective member 3, wherein the opening of the sealing seat 7 faces the side of the first through hole 32, and the outer wall of the sealing seat 7 can be interference fit with the inner wall of the accommodating cavity 31. As some exemplary usage scenarios, when the sealing seat 7 with the airflow sensing switch 2 is installed into the accommodating cavity 31, there is a possibility that the first through hole 32 will be blocked, causing the airflow sensing switch 2 to start automatically. This is because after the first through hole 32 is blocked, the airflow sensing switch 2 in the accommodating cavity 31 may form a pressure difference on both sides due to trapped air. That is, when the sealing seat 7 with the airflow sensing switch 2 in the accommodating cavity is installed into the accommodating cavity 31 of the protective member 3, the first through hole 32 may be blocked by a workpiece or other objects. Therefore, when the sealing seat 7 is installed into the accommodating cavity 31, the space in the accommodating cavity 31 will be gradually compressed as the installation progresses, and the gas in the accommodating cavity 31 has no discharge channel, resulting in the air pressure in the accommodating cavity 31 becoming larger and larger, thereby forming a pressure difference on both sides of the airflow sensing switch 2 that gradually increases, and finally reaches the range that triggers the start of the airflow sensing switch 2. Because the protective member 3 has a wall surface 33 on the side facing away from the accommodating chamber 31, and the first through hole 32 can be set to penetrate the wall surface 33, and a plurality of pressure relief channels 341 connected to the first through holes 32 are provided on the protective member 3, when the first through holes 32 are blocked, the gas in the accommodating chamber 31 can flow out through the pressure relief channels 341, thereby avoiding the formation of a pressure difference on both sides of the airflow sensing switch 2 and self-starting.

[0055] 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: A housing, wherein the housing has an airflow channel for airflow; An airflow sensing switch, used to sense airflow changes in the airflow channel; a protective member, wherein the protective member defines a receiving cavity for installing the airflow sensing switch and a first through hole extending away from the receiving cavity, wherein the receiving cavity is connected to the airflow channel through the first through hole; There is a wall on the side of the protective member facing away from the accommodating cavity, the first through hole is connected to or penetrates the wall, and at least one pressure relief channel connected to the first through hole is provided on the protective member, and the pressure relief channel is configured to provide an air guide path between the inside and outside of the accommodating cavity so that the airflow does not pass through the wall.

2. The electronic atomization device according to claim 1, characterized in that: The pressure relief channel includes a groove sunken from the wall surface or a hole laterally connected to the first through hole.

3. The electronic atomization device according to claim 2, characterized in that: The pressure relief channel includes two intersecting grooves sunken from the wall surface; And the first through hole extends from the intersection of the two grooves to the accommodating cavity.

4. The electronic atomization device according to claim 1, characterized in that: A fixing piece is also provided in the shell, and the fixing piece is provided on a side of the protective piece away from the wall surface, and the fixing piece is used to support the airflow sensing switch so that the airflow sensing switch is kept in the accommodating cavity.

5. The electronic atomization device according to claim 4, characterized in that: At least one concave cavity is formed around a side of the protection member away from the fixing member; The concave cavity is communicated with the accommodating cavity through the first through hole.

6. The electronic atomization device according to claim 5, characterized in that: The protection member is provided with a second through hole penetrating two opposite sides, the second through hole is spaced apart from the accommodating cavity, and one end of the second through hole extends into the concave cavity.

7. The electronic atomization device according to claim 6, characterized in that: The second through hole is constructed as a part of the air flow channel.

8. The electronic atomization device according to claim 5, characterized in that: A buffer is disposed in the cavity, and a third through hole is formed in the buffer; At least a portion of the wall surface is located in the third through hole.

9. The electronic atomization device according to any one of claims 4 to 8, characterized in that: The fixing member includes a circuit board for holding the airflow sensing switch, and the protecting member includes a flexible sealing member, which at least partially surrounds the airflow sensing switch and abuts against a surface of the circuit board.

10. The electronic atomization device according to claim 1, characterized in that: The protective member includes a support frame for supporting the airflow sensing switch, the accommodating cavity is opened in the support frame, a sealing seat is further arranged on the periphery of the airflow sensing switch, and the sealing seat and the airflow sensing switch are accommodated together in the accommodating cavity.

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