Electronic atomizer

Abstract

The utility model relates to an electronic atomizer which comprises a shell, a battery assembly and an atomization unit, the battery assembly and the atomization unit are coaxially arranged in the shell, the battery assembly comprises a fixing support and a circuit board assembly, the fixing support is arranged below the atomization unit, the circuit board assembly is electrically connected with the atomization unit, and the atomization unit is arranged in the shell. The interior of the fixing support is hollow to form a containing cavity used for containing the circuit board assembly, an air inlet channel is formed in the outer wall of the fixing support and isolated from the containing cavity, one end of the air inlet channel is communicated with an atomization air channel in the atomization unit, an air inlet hole is formed in the shell, and the air inlet hole is communicated with the atmosphere and the other end of the air inlet channel. According to the electronic atomizer, the air inlet channel is completely isolated from the circuit board assembly, even if condensate is generated in the atomization air channel and falls into the air inlet channel, the condensate cannot flow to the circuit board assembly, the risk that the circuit board assembly is affected with damp or corroded by the condensate is avoided, and the service life of the electronic atomizer is greatly prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to atomization device technical field, especially to an electronic atomizer. BACKGROUND

[0002] The electronic atomizer is a device that forms an aerosol by heating stored smokable oil or other similar substances for a user to inhale.

[0003] When the electronic atomizer is used by a user, external air enters an air inlet channel inside the electronic atomizer through an air inlet hole on the electronic atomizer, and then enters an atomization air passage in an atomization unit and is heated by a heating element to form an aerosol with the smokable oil.

[0004] However, the air inlet channel inside the electronic atomizer is usually in communication with a receiving cavity inside the electronic atomizer for receiving a circuit board assembly, and the circuit board assembly is generally arranged below the atomization unit. When the internal and external temperature difference of the electronic atomizer is too large, condensate is easily formed in the atomization air passage after the smokable oil is atomized, or condensate is inevitably generated after the external cold air enters the atomization air passage along the air inlet channel through the air inlet hole. The condensate will flow to the circuit board assembly through the air inlet channel under the action of gravity, causing the circuit board assembly to be damp or contaminated and corroded, thereby greatly reducing the service life of the electronic atomizer. SUMMARY

[0005] One of the purposes of the utility model is to provide an electronic atomizer, which aims to solve the technical problem that condensate generated in an atomization air passage inside the existing electronic atomizer will flow to a circuit board assembly through an air inlet channel, causing the circuit board assembly to be damp or contaminated and corroded.

[0006] In order to achieve the above-mentioned purpose, the utility model provides an electronic atomizer, which comprises a shell, a battery assembly and an atomization unit, the battery assembly and the atomization unit are coaxially arranged in the shell, the battery assembly comprises a fixed support and a circuit board assembly, the fixed support is arranged below the atomization unit, the circuit board assembly is electrically connected with the atomization unit, the inside of the fixed support is hollow and forms a receiving cavity for receiving the circuit board assembly, an air inlet channel is formed on the outer wall of the fixed support, the air inlet channel is isolated from the receiving cavity, one end of the air inlet channel is in communication with an atomization air passage in the atomization unit, an air inlet hole is formed on the shell, and the air inlet hole is in communication with the atmosphere and the other end of the air inlet channel.

[0007] Further, a first sealing silica gel is arranged between the fixed support and the atomization unit, the air inlet channel is arranged in the opposite surface of the first sealing silica gel from the top end surface of the fixed support, and the air outlet of the air inlet channel is arranged in a staggered manner with the atomization air passage.

[0008] Further, the circuit board assembly comprises a first circuit board, a microphone is arranged on the first circuit board, a microphone air duct corresponding to the microphone is arranged on the top surface of the fixing support, an arc-shaped slot is arranged on the bottom surface of the first sealing silica gel, a through hole penetrating the upper surface of the first sealing silica gel is arranged on the first end of the arc-shaped slot, the through hole is communicated with the atomization air duct, the microphone air duct is located at the second end of the arc-shaped slot, the arc-shaped slot is communicated with the microphone air duct and the through hole, the height of the first end of the arc-shaped slot from the fixing support is H1, the height of the microphone air duct from the fixing support is H2, and the relationship between H1 and H2 satisfies H2>H1.

[0009] Further, a water collecting groove is arranged on the upper surface of the first sealing silica gel, the water collecting groove is located below the atomization air duct, and is used for collecting condensed liquid flowing out of the atomization air duct, and the through hole and / or the air outlet of the air inlet channel are located in the water collecting groove.

[0010] Further, the top end surface of the through hole and / or the air outlet of the air inlet channel has a height difference with the bottom surface in the water collecting groove.

[0011] Further, the atomization unit and the fixing support are connected and fixed by a magnetic attraction structure, and an avoiding slot for avoiding the magnetic attraction structure is arranged on the first sealing silica gel.

[0012] Further, the magnetic attraction structure comprises a first magnetic attraction block and a second magnetic attraction block, the first magnetic attraction block is fixed on the atomization unit, the second magnetic attraction block is arranged on the fixing support at a position corresponding to the first magnetic attraction block, and the magnetic properties of the first magnetic attraction block and the second magnetic attraction block are opposite.

[0013] Further, a first magnetic block mounting hole is arranged on the surface of the atomization unit facing the fixing support, and the first magnetic attraction block is embedded in the first magnetic block mounting hole; a second magnetic block mounting hole is arranged on the surface of the fixing support facing the atomization unit, and the second magnetic attraction block is embedded in the second magnetic block mounting hole.

[0014] Further, one side of the accommodating cavity facing the microphone is provided with a microphone sealing cavity sealing the microphone, first limiting protrusions are arranged on the opposite two side walls in the accommodating cavity, and the first circuit board is arranged on the two first limiting protrusions.

[0015] Further, the circuit board assembly further comprises a second circuit board, a support frame for supporting the second circuit board is arranged in the accommodating cavity, a power supply is connected between the first circuit board and the second circuit board, a second limiting protrusion is further arranged on the opposite two side walls in the accommodating cavity, the second limiting protrusion is located between the support frame and the power supply, a limiting portion extending in the axial direction of the shell is arranged on the second limiting protrusion, a plurality of limiting holes penetrating through the opposite surfaces of the second circuit board are arranged, each limiting portion and each limiting hole are one-to-one correspondingly inserted, and a charging port electrically connected with the second circuit board is arranged on the bottom of the shell.

[0016] Compared with the prior art, the utility model has the beneficial effects of:

[0017] The air inlet channel is completely isolated from the circuit board assembly, even if condensate is generated in the atomization air channel and the condensate falls into the air inlet channel, the condensate cannot flow to the circuit board assembly, the risk that the circuit board assembly is dampened or corroded by the condensate is avoided, and the service life of the electronic atomizer is greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a top view of the electronic atomizer of the utility model;

[0019] Figure 2 It is Figure 1 A-A section view thereof;

[0020] Figure 3 It is Figure 1 B-B section view thereof;

[0021] Figure 4 It is a structural schematic view of the embodiment related to the battery assembly, the atomization unit, the cartridge and the connection of the suction nozzle;

[0022] Figure 5 It is a structural schematic view of the embodiment related to the state that the sealing shell is sleeved on the fixing support;

[0023] Figure 6 It is a structural schematic view of the embodiment related to the battery assembly;

[0024] Figure 7 It is Figure 6 Another angle structural schematic view thereof;

[0025] Figure 8 It is a structural schematic view of the embodiment related to the fixing support;

[0026] Figure 9 It is Figure 8 Another angle structural schematic view thereof;

[0027] Figure 10 It is Figure 9another angle of the structure of the embodiment;

[0028] Figure 11 a structure diagram of the embodiment involving the connection of the battery assembly and the first sealing silica gel;

[0029] Figure 12 a structure diagram of the embodiment involving the first sealing silica gel;

[0030] Figure 13 a structure diagram of the embodiment involving the connection of the battery assembly and the first sealing silica gel; Figure 12 another angle of the structure of the embodiment;

[0031] Figure 14 a bottom view of the embodiment; Figure 12

[0032] Figure 15 a sectional view of the embodiment at C-C; Figure 14

[0033] Figure 16 a sectional view of the embodiment at D-D; Figure 14

[0034] Figure 17 a structure diagram of the embodiment involving the atomization unit;

[0035] Figure 18 a structure diagram of the embodiment involving the atomization unit in a state where the atomization shell is removed;

[0036] Figure 19 a structure diagram of the embodiment involving the connection of the connecting seat and the second oil absorption cotton;

[0037] Figure 20 a structure diagram of the embodiment involving the second sealing silica gel;

[0038] Figure 21 a structure diagram of the embodiment involving the connection of the fixing ring and the heating element;

[0039] Figure 22 a structure diagram of the embodiment involving the atomization air channel.

[0040] Reference signs in the drawings:

[0041] ​​​1, shell; 10, bottom cover; 101, air inlet hole; 102, charging port; 2, battery assembly; 20, fixed support; 200, containing cavity; 201, air inlet channel; 2012, air outlet; 203, connecting channel; 204, microphone airway; 2041, microphone sealing cavity; 205, first limiting protrusion; 206, second limiting protrusion; 207, limiting part; 208, first magnetic block; 209, first magnetic block mounting hole; 21, circuit board assembly; 211, first circuit board; 212, second circuit board; 22, first sealing silica gel; 220, arc slot; 2201, first end; 2202, second end; 221, through hole; 222, water collecting groove; 223, avoiding groove; 3, atomization unit; 30, connecting seat; 301, containing groove; 302, first air hole; 303, second magnetic block mounting hole; 304, second magnetic block; 31, atomization shell; 32, second sealing silica gel; 320, second air hole; 33, oil storage cotton; 34, first oil absorbing cotton; 35, second oil absorbing cotton; 36, atomization airway; 360, opening; 37, heating element; 38, fixing ring; 4, cartridge; 40, air outlet channel; 5, suction nozzle; 6, sealing shell; 8, power supply; 9, closed space; 90, support frame. DETAILED DESCRIPTION

[0042] It should be understood that the specific embodiments described herein are merely exemplary and do not limit the present application.

[0043] In the description of the present application, it should be understood that the terms "width", "upper", "lower", "front", "rear", "top", "bottom" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0044] In the description of the present application, it should be understood that unless otherwise specified and limited, the terms "mounting", "connecting", "connecting", "setting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, it can be directly connected, or indirectly connected through an intermediate medium, it can be the communication between two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0045] In the utility model, unless another definite provision and limitation, first feature is "on" or "under" second feature, can include that first and second features are in direct contact, also can include that first and second features are not in direct contact but contact through other feature between them.Moreover, first feature "on", "above" and "on" second feature includes that first feature is directly above and obliquely above second feature, or only indicates that the horizontal height of first feature is higher than second feature.The first feature "under", "below" and "under" second feature includes that first feature is directly below and obliquely below second feature, or only indicates that the horizontal height of first feature is less than second feature.

[0046] Please refer to Figure 1 - Figure 22 The utility model provides an electronic atomizer.

[0047] Refer to Figure 2 And Figure 4 The electronic atomizer of this embodiment includes a housing 1, a battery assembly 2, an atomization unit 3, a cartridge 4 and a mouthpiece 5.The battery assembly 2, the atomization unit 3 and the cartridge 4 are coaxially arranged in the housing 1, the atomization unit 3 is located between the battery assembly 2 and the cartridge 4, and the mouthpiece 5 is fixed to the top end of the cartridge 4.

[0048] Refer to Figure 2 - Figure 4 , Figure 6 - Figure 11 The battery assembly 2 includes a fixing bracket 20 and a circuit board assembly 21, the fixing bracket 20 is arranged below the atomization unit 3, the circuit board assembly 21 is electrically connected with the atomization unit 3, the inside of the fixing bracket 20 is hollow and forms an accommodation cavity 200 for accommodating the circuit board assembly 21, an air inlet channel 201 is formed on the outer wall of the fixing bracket 20, the air inlet channel 201 is isolated from the accommodation cavity 200, one end of the air inlet channel 201 communicates with an atomization air channel 36 in the atomization unit 3, an air inlet hole 101 is formed on the housing 1, the air inlet hole 101 communicates with the atmosphere and the other end of the air inlet channel 201.Of course, the atomization air channel 36 communicates with an air outlet channel 40 in the cartridge 4, and the air outlet channel 40 communicates with the mouthpiece 5.In this way, when a user uses the electronic atomizer, external air enters the electronic atomizer through the air inlet hole 101, and then flows to the atomization air channel 36 along the air inlet channel 201 on the outer wall of the fixing bracket 20, and the air and the tobacco tar are atomized to form aerosol by the heating element 37 in the atomization air channel 36.

[0049] In summary, since the air inlet channel 201 and the accommodating cavity 200 accommodating the circuit board assembly 21 are arranged separately, even if condensate is generated in the atomization air channel 36 and falls into the air inlet channel 201, the condensate cannot flow to the circuit board assembly 21, avoiding the risk of moisture or corrosion of the circuit board assembly 21 due to the condensate, and greatly improving the service life of the electronic atomizer.

[0050] With reference to Figure 6 and Figure 8 , the circuit board assembly 21 comprises a first circuit board 211, and a microphone is arranged on the first circuit board 211. A microphone air channel 204 corresponding to the microphone and communicating with the microphone is arranged on the top end surface of the fixing support 20. The microphone serves as a starting sensor of the electronic atomizer and can sense the action of user inhaling. When the user inhales, the conductive film inside the microphone will deform, thereby causing a change in the equivalent capacitance. When the change reaches a certain value, the first circuit board 211 will output a smoking signal, thereby triggering the electronic atomizer to start working.

[0051] With reference to Figure 4 , a first sealing silica gel 22 is arranged between the fixing support 20 and the atomization unit 3, and the first sealing silica gel 22 is mainly used to prevent leaked tobacco tar on the atomization unit 3 from entering the battery assembly 2.

[0052] With reference to Figure 2 and Figure 11 , the air inlet channel 201 is arranged through the opposite surface of the first sealing silica gel 22 from the top end surface of the fixing support 20, and the air outlet 2012 of the air inlet channel 201 is arranged in a staggered manner with the atomization air channel 36. In this way, the condensate generated in the atomization air channel 36 can be effectively prevented from directly entering the air inlet channel 201.

[0053] With reference to Figure 2 , Figure 6 and Figure 11 - Figure 16 , an arc-shaped groove 220 is arranged on the bottom surface of the first sealing silica gel 22. A first end 2201 in the arc-shaped groove 220 is provided with a through hole 221 arranged through the upper surface of the first sealing silica gel 22. The through hole 221 is arranged in a staggered manner with the atomization air channel 36 and communicates with the atomization air channel 36. A second end 2202 of the arc-shaped groove 220 is located at the microphone air channel 204. Of course, the arc-shaped groove 220 communicates the microphone air channel 204 and the through hole 221, so that the microphone communicates with the atomization air channel 36. Since the atomization air channel 36 communicates with the air inlet channel 201, the microphone communicates with the air inlet channel 201, so that the microphone can sense the action of user inhaling. With reference to Figure 16, the height of the first end 2201 in the arc-shaped groove 220 from the fixed support 20 is H1, and the height of the microphone air channel 204 from the fixed support 20 is H2, and H1 and H2 satisfy the relationship: H2 > H1, so that the condensed liquid formed in the atomization air channel 36 after atomization enters the through hole 221 and flows into the arc-shaped groove 220, but since H2 > H1, the condensed liquid entering the arc-shaped groove 220 is also not easy to flow into the microphone through the microphone air channel 204, thereby greatly improving the service life of the microphone. In addition, the upper surface of the first sealing silica gel 22 is provided with a water collecting groove 222, which is located below the atomization air channel 36 and is used for collecting the condensed liquid generated in the atomization air channel 36.

[0054] In addition, the through hole 221 and / or the air outlet 2012 of the air inlet channel 201 are located in the water collecting groove 222 (as shown in Figure 11 ), the through hole 221 and the air inlet channel 201 are arranged in a staggered manner, so that the through hole 221 and the air inlet channel 201 are both in communication with the atomization air channel 36, and the microphone air channel 204 is in communication with the air inlet channel 201 and the atomization air channel. The top end surface of the through hole 221 and / or the air outlet 2012 of the air inlet channel 201 has a height difference with the bottom surface in the water collecting groove 222, so that only when the liquid level of the condensed liquid in the water collecting groove 222 is higher than the top end surface of the through hole 221 and / or the air outlet 2012 of the air inlet channel 201, the condensed liquid can enter the through hole 221 and the air inlet channel 201, thereby further avoiding the condensed liquid entering the microphone on the first circuit board 211, and greatly improving the service life of the microphone.

[0055] Referring to Figure 4 , Figure 11 and Figure 12 , the atomization unit 3 and the fixed support 20 are connected and fixed by a magnetic attraction structure, and of course, the first sealing silica gel 22 is provided with a avoiding groove 223 for avoiding the magnetic attraction structure. That is, the connection of the atomization unit 3 and the battery assembly 2 is realized by the magnetic attraction structure, which is conducive to realizing the quick connection of the atomization unit 3 and the battery assembly 2.

[0056] Referring to Figure 2 , Figure 4 and Figure 17 - Figure 22The atomization unit 3 comprises a connecting seat 30, an atomization shell 31, a second sealing silica gel 32, an oil storage cotton 33, a first oil absorbing cotton 34, a second oil absorbing cotton 35, an atomization air channel 36 and a heating element 37. The bottom of the atomization shell 31 is connected with the connecting seat 30, the circumferential sidewall of the connecting seat 30 is sealingly connected with the inner circumferential sidewall of the atomization shell 31, the connecting seat 30 is connected and fixed with the fixing support 20 through magnetic attraction structure, and the top of the atomization shell 31 is connected with the smoke cartridge 4. The upper surface of the connecting seat 30 is provided with a containing groove 301, the connecting seat 30 is provided with a first air hole 302 penetrating through the opposite surfaces thereof, the first air hole 302 is communicated with the containing groove 301, the oil storage cotton warehouse is formed in the atomization shell 31, the oil storage cotton warehouse is communicated with the gas outlet channel 40 in the smoke cartridge 4, and the containing groove 301 and the oil storage cotton warehouse are coaxially arranged. Of course, the atomization air channel 36 is coaxially arranged with the oil storage cotton warehouse, and the atomization air channel 36 is communicated with the containing groove 301, so that the atomization air channel 36 is communicated with the first air hole 302. In addition, the oil storage cotton 33 is fixed in the oil storage cotton warehouse, the oil storage cotton 33 is located at the periphery of the atomization air channel 36, the second sealing silica gel 32 is fixed between the oil storage cotton 33 and the connecting seat 30, and the second sealing silica gel 32 is located in the atomization shell 31. The second sealing silica gel 32 mainly prevents the leakage of tobacco tar on the oil storage cotton 33 into the connecting seat 30. Of course, the second sealing silica gel 32 has a second air hole 320 communicating the atomization air channel 36 and the containing groove 301; the first oil absorbing cotton 34 is installed in the atomization air channel 36, the circumferential sidewall of the atomization air channel 36 is provided with an opening 360 communicating the oil storage cotton 33 and the first oil absorbing cotton 34, the opening 360 makes the first oil absorbing cotton 34 abut against the oil storage cotton 33, and the fixing ring 38 for fixing the heating element 37 is further arranged in the atomization air channel 36. The heating element 37 adopts a heating wire, and the heating element 37 is electrically connected with the first circuit board 211. In addition, the second oil absorbing cotton 35 is installed in the containing groove 301, and is mainly used for absorbing the tobacco tar formed by the cold aerosol.

[0057] As can be seen from the above, when the user sucks the suction nozzle 5, the external air enters the air inlet channel 201 through the air inlet hole 101, and then enters the atomization air channel 36 to be heated with the tobacco tar by the heating element 37, so as to be atomized to form the aerosol.

[0058] Referring to Figure 4 , Figure 11 and Figure 17The magnetic attraction structure includes a first magnetic attraction block 208 and a second magnetic attraction block 304. The first magnetic attraction block 208 is fixed on the connecting seat 30 of the atomization unit 3, and the second magnetic attraction block 304 is arranged at a position corresponding to the first magnetic attraction block 208 on the fixed support 20. The first magnetic attraction block 208 and the second magnetic attraction block 304 are opposite in magnetic property. Thus, the fixed support 20 and the connecting seat 30 of the atomization unit 3 are quickly connected and fixed through the magnetic attraction between the first magnetic attraction block 208 and the second magnetic attraction block 304. In addition, a first magnetic block mounting hole 209 is formed in the surface of the connecting seat 30 of the atomization unit 3 facing the fixed support 20. The first magnetic attraction block 208 is embedded in the first magnetic block mounting hole 209. Thus, the stability of the connection between the first magnetic attraction block 208 and the connecting seat 30 is improved. Similarly, a second magnetic block mounting hole 303 is formed in the surface of the fixed support 20 facing the atomization unit 3. The second magnetic attraction block 304 is embedded in the second magnetic block mounting hole 303. Thus, the stability of the connection between the second magnetic attraction block 304 and the fixed support 20 is improved.

[0059] It should be noted that the cartridge 4 is a conventional structure in the field of electronic atomizer technology and mainly consists of a tobacco tar storage body. Therefore, the specific working principle thereof will not be described in detail.

[0060] With reference to Figure 8 The microphone sealing cavity 2041 is arranged on the side of the accommodating cavity 200 facing the microphone. The first limiting protrusions 205 are arranged on the opposite side walls in the accommodating cavity 200. The first limiting protrusions 205 are integrally connected to the side walls in the accommodating cavity 200. The first circuit board 211 is arranged on the two first limiting protrusions 205. Thus, in the accommodating cavity 200, the first limiting protrusions 205 and the top of the fixed support 20 form a first accommodating cavity. The first limiting protrusions 205 support the first circuit board 211 with the microphone. The top of the fixed support 20 is provided with the microphone sealing cavity 2041 on the side facing the microphone of the first circuit board 211. The height of the first accommodating cavity is equal to the sum of the thickness of the first circuit board 211 and the height of the microphone sealing cavity 2041. Thus, the first circuit board 211 cannot move up and down. The opposite side walls of the fixed support 20 abut against the opposite side surfaces of the first circuit board 211. Thus, the first circuit board 211 cannot move left and right. Therefore, the installation and fixation of the first circuit board 211 are facilitated.

[0061] With reference to Figure 8 Figure 11 ​The circuit board assembly 21 further comprises a second circuit board 212 located below the first circuit board 211, the accommodating cavity 200 is provided with a support frame 90 supporting the second circuit board 212, and the second circuit board 212 is connected with the first circuit board 211 and the power supply 8. In addition, a second limiting protrusion 206 is arranged on the bottom of the accommodating cavity 200, the second limiting protrusion 206 is integrally connected with the side wall of the accommodating cavity 200, the second limiting protrusion 206 is located between the support frame 90 and the power supply 8, the second limiting protrusion 206 is provided with a limiting portion 207 extending in the axial direction of the shell 1, the second circuit board 212 is provided with a plurality of limiting holes penetrating through the opposite surfaces of the second circuit board 212, and each limiting portion 207 is inserted into each limiting hole in a one-to-one correspondence. The bottom of the shell 1 is provided with a charging port 102 electrically connected with the second circuit board 212. Therefore, the second limiting protrusion 206 and the bottom cover 10 of the shell 1 form a second accommodating cavity, the second accommodating cavity has the second circuit board 212 and the charging port 102, the height of the second accommodating cavity is equal to the sum of the height of the second circuit board 212 and the height of the charging port 102, so that the second circuit board 212 cannot be shifted up and down; due to the limiting holes on the second circuit board 212, the second limiting protrusion 206 is provided with the limiting portion 207 matching the size of the limiting hole at the corresponding limiting hole, the limiting portion 207 penetrates through the limiting hole, so that the second circuit board 212 cannot move left and right, thereby facilitating the installation and fixation of the second circuit board 212.

[0062] With reference to Figure 2 , Figure 5 - Figure 8 and Figure 11 , the circumferential wall of the fixing support 20 is provided with a notch, the bottom end of the fixing support 20 is an open port and is closed by the bottom cover 10 of the shell 1, so that the circuit assembly can be conveniently installed in the accommodating cavity 200. In addition, the outer wall of the fixing support 20 is sleeved with the sealing shell 6, and the sealing shell 6 is also sleeved on the atomizing shell 31 of the atomizing unit 3 and the shell of the cartridge 4. The air inlet channel 201 on the outer wall of the fixing support 20 is located between the sealing shell 6 and the fixing support 20, which is conducive to further isolating the air inlet channel 201 from the circuit board assembly 21.

[0063] With reference to Figure 2 , Figure 7 , the air inlet hole 101 is arranged on the bottom of the bottom cover 10, the support frame 90 and the bottom cover 10 form a closed space 9, the air inlet hole 101 communicates with the closed space 9, and the closed space 9 is isolated from the second circuit board 212. With reference to Figure 2 , Figure 9 - Figure 11 , the air inlet of the air inlet channel 201 is arranged on the connecting channel 203 of the fixing support 20, which directly communicates with the closed space 9, so that the second circuit and the air inlet channel 201 can be isolated.

[0064] The above merely describes preferred embodiments of the present application, and does not limit the patent scope of the present application, and any equivalent structure or equivalent process transformation, or direct or indirect application in other related technical fields, which are made by using the content of the present application specification and drawings, are also included in the patent protection scope of the present application.

Claims

1. An electronic atomizer, comprising a housing, a battery assembly and an atomizing unit, the battery assembly and the atomizing unit being coaxially arranged in the housing, the battery assembly comprising a fixing support and a circuit board assembly, the fixing support being arranged below the atomizing unit, and the circuit board assembly being electrically connected with the atomizing unit, characterized in that, The inside of the fixed support is hollow and forms a containing cavity for containing the circuit board assembly, an air inlet channel is formed on the outer wall of the fixed support and is isolated from the containing cavity, one end of the air inlet channel communicates with the atomization air channel in the atomization unit, and an air inlet hole is formed on the shell and communicates the atmosphere with the other end of the air inlet channel.

2. The electronic atomizer of claim 1, wherein, A first sealing silica gel is arranged between the fixed support and the atomization unit, the air inlet channel is arranged on the opposite surface of the first sealing silica gel from the top end surface of the fixed support, and the air outlet of the air inlet channel is arranged in a staggered manner with the atomization air channel.

3. The electronic atomizer of claim 2, wherein, The circuit board assembly includes a first circuit board, a microphone is arranged on the first circuit board, a microphone air channel corresponding to the microphone is arranged on the top end surface of the fixed support, an arc-shaped groove is formed on the bottom surface of the first sealing silica gel, a through hole is formed on the first end in the arc-shaped groove and penetrates the upper surface of the first sealing silica gel, the through hole communicates with the atomization air channel, the second end of the microphone air channel is located in the arc-shaped groove, the arc-shaped groove communicates the microphone air channel and the through hole, the height of the first end in the arc-shaped groove from the fixed support is H1, the height of the microphone air channel from the fixed support is H2, and the relationship between H1 and H2 satisfies H2>H1.

4. The electronic atomizer of claim 3, wherein, A water collecting groove is arranged on the upper surface of the first sealing silica gel and is located below the atomization air channel for collecting condensed liquid flowing out of the atomization air channel, and the through hole and / or the air outlet of the air inlet channel are located in the water collecting groove.

5. The electronic atomizer of claim 4, wherein, The top end surface of the through hole and / or the air outlet of the air inlet channel has a height difference with the bottom surface in the water collecting groove.

6. The electronic atomizer of any of claims 2-5, wherein, The atomization unit and the fixed support are connected and fixed by a magnetic attraction structure, an avoiding groove for avoiding the magnetic attraction structure is formed on the first sealing silica gel.

7. The electronic atomizer of claim 6, wherein, The magnetic attraction structure includes a first magnetic attraction block and a second magnetic attraction block, the first magnetic attraction block is fixed on the atomization unit, the second magnetic attraction block is arranged on the fixed support at a position corresponding to the first magnetic attraction block, and the magnetism of the first magnetic attraction block and the second magnetic attraction block is opposite.

8. The electronic atomizer of claim 7, wherein, A first magnetic block mounting hole is formed on the surface of the atomization unit facing the fixed support, and the first magnetic attraction block is embedded in the first magnetic block mounting hole; a second magnetic block mounting hole is formed on the surface of the fixed support facing the atomization unit, and the second magnetic attraction block is embedded in the second magnetic block mounting hole.

9. The electronic atomizer of claim 3, wherein, One side of the containing cavity facing the microphone is provided with a microphone sealing cavity sealing the microphone, first limiting protrusions are arranged on the opposite two side walls in the containing cavity, and the first circuit board is arranged on the two first limiting protrusions.

10. The electronic atomizer of claim 3 or 9, wherein, The circuit board assembly further comprises a second circuit board, a supporting frame is arranged in the accommodating cavity to support the second circuit board, a power supply is connected between the first circuit board and the second circuit board, a second limiting protrusion is further arranged on the opposite two side walls in the accommodating cavity, the second limiting protrusion is located between the supporting frame and the power supply, a limiting part extending in the axial direction of the shell is arranged on the second limiting protrusion, a plurality of limiting holes penetrating through the opposite surfaces of the second circuit board are formed on the second circuit board, each limiting part is inserted into each limiting hole in one-to-one correspondence, and a charging port electrically connected with the second circuit board is arranged on the bottom of the shell.

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