Electronic atomization device and atomizer thereof

Abstract

The application discloses an electronic atomization device and an atomizer thereof. The atomizer is provided with an atomization cavity, and is provided with a first air inlet hole, a second air inlet hole and an air inlet channel. The air inlet channel is communicated with the first air inlet hole and the second air inlet hole, and the second air inlet hole is communicated with the atomization cavity. The air inlet channel comprises a first air passage and a second air passage which are communicated. The first air inlet hole is communicated with the first air passage, and the second air inlet hole is communicated with the second air passage. The cross-sectional area of the first air passage gradually decreases along the flow direction from the first air inlet hole to the second air inlet hole. In the above manner, the atomizer provided by the application can effectively reduce the air inlet noise.

Description

Technical Field

[0001] This application relates to the field of atomization technology, and in particular to an electronic atomizing device and its atomizer. Background Technology

[0002] An electronic atomizing device includes an atomizer and a main unit. The main unit powers the atomizer, which atomizes the aerosol matrix stored within it to produce an inhalable aerosol.

[0003] Existing electronic atomizing devices suffer from problems such as whistling and excessive noise caused by poor airflow, which greatly bothers users. Summary of the Invention

[0004] This application provides an electronic atomizing device and its atomizer to solve the problem of excessive noise during use of electronic atomizing devices.

[0005] To solve the above-mentioned technical problems, this application adopts the following technical solution: providing an atomizer. The atomizer has an atomizing chamber, a first air inlet, a second air inlet, and an air intake channel. The air intake channel connects the first air inlet and the second air inlet, and the second air inlet connects the atomizing chamber. The air intake channel includes a first air passage and a second air passage, with the first air inlet connecting to the first air passage and the second air inlet connecting to the second air passage. The cross-sectional area of ​​the first air passage gradually decreases along the flow direction from the first air inlet to the second air inlet.

[0006] In some embodiments, the air inlet of the second air passage is connected to the air outlet of the first air passage, and the cross-sectional area of ​​the air inlet of the second air passage is larger than the cross-sectional area of ​​the air outlet of the first air passage. The cross-sectional area is the cross-sectional area along the flow direction from the first air inlet to the second air inlet.

[0007] In some embodiments, the ratio of the cross-sectional area of ​​the inlet end of the second airway to the cross-sectional area of ​​the outlet end of the first airway is greater than or equal to 2.0.

[0008] In some embodiments, the atomizer includes:

[0009] The outer casing is provided with the first air inlet;

[0010] The base is provided with the second air inlet, and at least a portion of the base is disposed within the outer casing;

[0011] The base and the outer shell cooperate to form the first air passage, and the base is provided with the second air passage.

[0012] In some embodiments, the second air passage traverses the base, the first air passages are arranged in an arc along the circumference of the atomizer, the number of the first air passages is multiple, and the multiple first air passages are all communicated with the second air passage.

[0013] In some embodiments, the outer wall of the base is provided with a groove in the circumference, the outer shell covers the groove to form the first air passage, and the cross-sectional area of the groove gradually decreases along the flow direction from the first air inlet to the second air inlet.

[0014] In some embodiments, the air inlet channel comprises at least two first air passages, and a convex structure is arranged at the junction of the two adjacent first air passages, the convex structure being used to split the airflow entering from the first air inlet to the two first air passages.

[0015] In some embodiments, the convex structure is an arc structure, a triangular structure or a spherical structure.

[0016] In some embodiments, the arc structure comprises a circular arc surface, and the two sides of the circular arc surface are respectively connected to the side wall surfaces of the two adjacent first air passages.

[0017] In some embodiments, the radius of the circular arc surface is greater than or equal to 0.5 mm and less than or equal to 3.0 mm.

[0018] In some embodiments, the convex structure is arranged on the base, the number of the first air inlets is multiple, the convex structure is arranged one-to-one corresponding to the first air inlets, and the multiple first air passages are connected in a ring along the circumference of the atomizer.

[0019] To solve the above technical problems, another technical solution adopted by the present application is to provide an electronic atomization device. The electronic atomization device comprises a main machine and an atomizer as described above, and the main machine supplies power to the atomizer.

[0020] The beneficial effects of the present application are: different from the prior art, the present application discloses an electronic atomization device and an atomizer thereof. By limiting the first air passage in the air inlet channel, the cross-sectional area of the first air passage gradually decreases along the flow direction from the first air inlet hole to the second air inlet hole, that is, the first air passage is designed as a variable cross-section, the cross-sectional area at the inlet of the first air passage is larger, and the cross-sectional area at the outlet is smaller. By setting a larger cross-sectional area at the inlet of the first air passage, the flow velocity after the airflow enters can be effectively reduced, and the vortex size formed by the airflow can be increased, preventing the formation of too many small vortexes. Small vortexes are more likely to break up, and after breaking up, kinetic energy is converted into internal energy to produce noise. The variable cross-section design of the first air passage can improve the stability of the generated small vortexes, reduce the breaking ratio of the small vortexes, and thus enable the airflow to flow more stably in the first air passage. It can also reduce the air intake noise. That is, by reducing the generation of small vortexes at the inlet of the first air passage and reducing the breaking ratio of small vortexes flowing in the first air passage, the air intake noise can be significantly reduced. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0022] Figure 1 is a structural schematic diagram of an embodiment of the electronic atomization device provided by the present application;

[0023] Figure 2 is Figure 1 is a cross-sectional structural schematic diagram of the electronic atomization device shown in along the AA viewing direction;

[0024] Figure 3 is Figure 1 is a cross-sectional structural schematic diagram of the electronic atomization device shown in along the BB viewing direction;

[0025] Figure 4 is Figure 1 is an exploded structural schematic diagram of the components in the shell of the electronic atomization device shown in;

[0026] Figure 5 is Figure 3 is a structural schematic diagram of the top cover of the electronic atomization device shown in;

[0027] Figure 6 is Figure 3 is a structural schematic diagram of the support of the electronic atomization device shown in;

[0028] Figure 7 is Figure 6A front view structural schematic diagram of the shown support;

[0029] Figure 8 is Figure 1 A cross-sectional view structural schematic diagram of the shown electronic atomization device along the CC view direction;

[0030] Figure 9 is a structural schematic diagram of another embodiment of the electronic atomization device provided by the present application;

[0031] Figure 10 is Figure 9 A structural schematic diagram of the shown electronic atomization device with the shell split open. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0033] The terms “first”, “second”, “third” in the embodiments of the present application are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with “first”, “second”, “third” can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of “plurality” is at least two, for example, two, three, etc., unless otherwise specifically limited. In addition, the terms “include” and “have” and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device including a series of steps or units is not limited to the listed steps or units, but can optionally include steps or units not listed, or can optionally include other steps or units inherent to the process, method, product or device.

[0034] In this document, the term “embodiment” means that the specific features, structures or properties described in connection with the embodiment can be included in at least one embodiment of the present application. The phrase appears at various places in the specification does not necessarily all refer to the same embodiment, nor is it necessarily independent or alternative to other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0035] The present application provides an electronic atomization device 100, referring to Figures 1-2 , Figure 1 is a structural schematic diagram of an embodiment of the electronic atomization device provided by the present application, Figure 2 is Figure 1A cross-sectional structure schematic view of the electronic atomization device along the AA viewing direction is shown.

[0036] The electronic atomization device 100 can include an atomizer and a main machine, wherein the atomizer and the main machine are detachably connected, that is, the atomizer is replaceable, wherein the atomizer is used to store and atomize the aerosol substrate, and the main machine is used to power the atomizer.

[0037] The electronic atomization device 100 can also be a disposable device, that is, the electronic atomization device 100 can be discarded after the aerosol substrate carried by the electronic atomization device 100 is used up; it can also include an atomizer and a main machine, and the atomizer and the main machine are not detachable.

[0038] In this embodiment, the electronic atomization device 100 includes a liquid storage tank 10, a top cover 20, an atomizer 30, a bracket 40, a pneumatic sensing element 50, an electric core 60, a control device 70, an outer shell 80, and an electrode 90. The top cover 20 is connected to the liquid storage tank 10 and forms a liquid storage cavity 12. The atomizer 30 is arranged on the top cover 20. One end of the bracket 40 is connected to the end of the liquid storage tank 10, and a misting cavity 22 is formed between the bracket 40 and the top cover 20. The electrode 90 is connected to the bracket 40 and electrically connected to the atomizer 30. The electrode 90 can be used to press the atomizer 30 on the top cover 20, or the atomizer 30 can be pressed on the top cover 20 by the bracket 40. The pneumatic sensing element 50, the electric core 60, and the control device 70 are all arranged on the bracket 40, and the electrode 90, the pneumatic sensing element 50, and the electric core 60 are all electrically connected to the control device 70. The pneumatic sensing element 50 is used to detect the use condition of the electronic atomization device 100 to send a start signal when the electronic atomization device 100 is used, and the control device 70 supplies power to the atomizer 30 based on the start signal. The outer shell 80 is arranged outside the liquid storage tank 10, the top cover 20, the atomizer 30, the bracket 40, the pneumatic sensing element 50, the electric core 60, the control device 70, and the electrode 90, and is used for decoration and protection to increase the appearance and waterproof and dustproof of the electronic atomization device 100.

[0039] In this embodiment, the bracket 40 is an integral structure, which includes a base 42 and a mounting bracket 44. The base 42 is connected to the end of the liquid storage tank 10, and the mounting bracket 44 is mounted with the pneumatic sensing element 50, the electric core 60, and the control device 70, so that the electronic atomization device 100 is a disposable device and the atomizer is not replaceable.

[0040] In other embodiments, the bracket 40 can also be a detachable or separate structure, which includes a detachable or separate base 42 and a mounting bracket 44. Then the atomizer can be composed of the liquid storage tank 10, the top cover 20, the atomizer 30, the base 42, and the electrode 90, and the remaining components constitute the main machine. The atomizer and the main machine are detachably connected, that is, the atomizer in the electronic atomization device 100 is replaceable.

[0041] Through long-term observation and data collection of the applicant on the use of existing products, it is found that in the existing atomizer, the starting airway in it is mostly close to the atomization cavity or directly opposite the atomization surface of the atomization core, resulting in a large amount of aerosol flowing back into the starting airway after the suction stops, and a large amount of condensate is generated in the starting airway after a long time of accumulation, thereby causing the starting difficulty of the pneumatic sensing part or the self-starting (self-ignition) phenomenon, which has serious product quality defects and safety hazards. Therefore, the electronic atomization device is improved to form the scheme of the present application.

[0042] In combination with reference to Figures 1-3 , wherein Figure 3 is Figure 1 The cross-sectional structure schematic diagram of the electronic atomization device shown in the figure along the BB viewing direction.

[0043] In the embodiment, the starting airway 41 is arranged on the support 40, the cap structure 21 is arranged on the top cover 20, the cap structure 21 is arranged at one end of the starting airway 41, and the cap structure 21 and the side wall of the starting airway 41 form a gap 23 communicating with the atomization cavity 22. The pneumatic sensing part 50 is communicated with the other end of the starting airway 41, and the pneumatic sensing part 50 communicates with the atomization cavity 22 through the starting airway 41 and the gap 23 to sense the airflow change state in the atomization cavity 22, thereby sending a signal to the control device 70 when the user uses the electronic atomization device 100, and the control device 70 controls the power supply of the atomization core 30 by the battery 60, so that the atomization core 30 starts atomization to generate aerosol in the atomization cavity 22.

[0044] The pneumatic sensing part 50 can be a microphone, a gas pressure sensor or a pneumatic flow rate sensor, which can be used to detect the airflow state of the electronic atomization device 100 to determine whether the electronic atomization device 100 is in use, so as to supply power to the electronic atomization device 100 in time.

[0045] For example, when the user directly sucks the electronic atomization device 100, it can be detected by the pneumatic sensing part 50; or when the user uses the electronic atomization device 100 through a machine device, it can also be detected by the pneumatic sensing part 50.

[0046] In the present application, the starting airway 41 is a hole structure, and the cap structure 21 covers the port of the starting airway 41, so that the port of the starting airway 41 communicates with the atomization cavity 22 through the gap 23 to prevent the aerosol in the atomization cavity 22 from splashing or flowing back into the starting airway 41, thereby effectively blocking the backflow of the aerosol and ensuring the smooth starting of the pneumatic sensing part 50, and the condensate in the atomization cavity 22 cannot flow into the starting airway 41 due to the covering of the cap structure 21 to the starting airway 41, thereby effectively reducing the risk of blockage of the starting airway 41 and improving the reliability of the pneumatic sensing part 50.

[0047] Specifically, the support 40 comprises a base 42, the base 42 is capped to one end of the liquid storage tank 10, and the base 42 and the top cover 20 form the atomization cavity 22 therebetween, the base 42 is provided with the air inlet hole 43 and the starting air channel 41, the air inlet hole 43 is communicated with the outside atmosphere and the atomization cavity 22 to supply air to the atomization cavity 22.

[0048] The starting air channel 41 and the air inlet hole 43 are arranged in a staggered manner, in the embodiment, the air inlet hole 43 is arranged corresponding to the atomization core 30, so that air can be efficiently supplied to the atomization surface of the atomization core 30 to improve the atomization effect; the starting air channel 41 is arranged in a staggered manner relative to the atomization core 30, that is, the projection area of the starting air channel 41 and the atomization core 30 in the direction of the top cover 20 towards the base 42 does not overlap, so that the starting air channel 41 does not have to directly face the atomization surface of the atomization core 30, to avoid the high-risk backflow area directly below the atomization surface, further reducing the risk of aerosol splashing or backflow into the starting air channel 41.

[0049] In other embodiments, the projection area of the starting air channel 41 and the atomization core 30 in the direction of the top cover 20 towards the base 42 can overlap.

[0050] For reference Figures 3-6 , wherein Figure 4 is an exploded structural schematic diagram of the components in the shell of the electronic atomization device shown in Figure 1 . Figure 5 is a structural schematic diagram of the top cover in the electronic atomization device shown in Figure 3 . Figure 6 is a structural schematic diagram of the support in the electronic atomization device shown in Figure 3 .

[0051] The base 42 comprises a base plate 420 and a surrounding wall 422, the surrounding wall 422 is arranged around the base plate 420, the starting air channel 41 can be arranged on the surrounding wall 422, and the port of the starting air channel 41 communicated with the atomization cavity 22 can be arranged on the inner side of the surrounding wall 422 or the top part thereof facing the top cover 20.

[0052] In the embodiment, as shown in Figure 6 , the base 42 further comprises an air channel pipe 427 connected to the base plate 420, the air channel pipe 427 is provided with the starting air channel 41, the air channel pipe 427 is located within the surrounding circle of the surrounding wall 422 and is arranged adjacent to the surrounding wall 422, and further the air channel pipe 427 is connected to the inner side of the surrounding wall 422, so as to be far away from the air inlet hole 43 to be far away from the high-risk backflow area below the atomization surface.

[0053] The base plate 420 is further formed with a liquid collecting cavity 45 arranged around the air inlet hole 43, and the port of the starting air channel 41 communicated with the atomization cavity 22 is higher than the liquid collecting cavity 45, so as to prevent the condensed liquid formed by the backflow of the aerosol from entering the starting air channel 41 along the wall surface, and further reduce the risk of the aerosol or the condensed liquid entering the starting air channel 41.

[0054] The wall of the liquid collecting cavity 45 is also provided with a plurality of capillary grooves for adsorbing and collecting the condensed liquid formed by the backflow of the aerosol.

[0055] In this embodiment, as shown in Figure 3 and Figure 5 The cap structure 21 includes a top wall 210 and a ring wall 212 connected to one side of the top wall 210, which can be arranged in a half-ring or a full-ring, and the top wall 210 covers one end of the airway tube 427 to cover the port of the activation airway 41, and the ring wall 212 forms a gap 23 with the side wall of the activation airway 41, i.e., the ring wall 212 forms a gap 23 with the side wall of the airway tube 427.

[0056] The port of the activation airway 41 can also be arranged on the side wall of the airway tube 427, so that the ring wall 212 covers the port of the activation airway 41.

[0057] Alternatively, the activation airway 41 is arranged on the surrounding wall 422, for example, the port of the activation airway 41 is arranged on the inner side of the surrounding wall 422, then the cap structure 21 can be the ring wall 212, which covers the port and forms a gap 23 with the inner side; or the port of the activation airway 41 is arranged on the surrounding wall 422 towards the top of the top cover 20, and the cap structure 21 still includes the top wall 210 and the ring wall 212, wherein the top wall 210 covers the port of the activation airway 41, and the ring wall 212 forms a gap 23 with the inner wall of the surrounding wall 422.

[0058] It can be understood that when the airway tube 427 is provided with the activation airway 41, the side wall of the activation airway 41 refers to the side wall of the airway tube 427; when the surrounding wall 422 is provided with the activation airway 41, the side wall of the activation airway 41 refers to the inner side wall of the surrounding wall 422.

[0059] For reference, Figures 4-7 wherein Figure 7 is Figure 6 the front view structural schematic diagram of the bracket shown in

[0060] The bracket 40 further includes a mounting frame 44 arranged on one side of the base 42, and the base 42 is provided with the activation airway 41, and the mounting frame 44 is further provided with an anti-backflow airway 46 communicating with the activation airway 41, and the pneumatic sensing member 50 communicates with the activation airway 41 through the anti-backflow airway 46. The anti-backflow airway 46 has the function of a one-way valve, which is used to prevent the aerosol from entering, thereby avoiding the aerosol or the condensed liquid formed by the aerosol from contacting the pneumatic sensing member 50, which can effectively enhance the protection of the pneumatic sensing member 50 and improve the activation reliability of the pneumatic sensing member 50.

[0061] The pneumatic sensing element 50, the battery cell 60 and the control device 70 are all mounted on the mounting rack 44, the pneumatic sensing element 50 and the control device 70 are arranged between the battery cell 60 and the base 42, and the pneumatic sensing element 50 and the battery cell 60 are electrically connected to the control device 70.

[0062] In this embodiment, the anti-backflow air channel 46 is a Tesla valve, which is a kind of channel structure capable of limiting the one-way flow of fluid. The one-way flow direction defined by the Tesla valve is opposite to the guiding direction of the starting air channel 41 from the atomization cavity 22 to the pneumatic sensing element 50, thereby preventing aerosol and condensed liquid from entering.

[0063] Alternatively, the anti-backflow air channel 46 can also be an air channel structure provided with a breathable film, thereby allowing only gas to pass through but not allowing liquid macromolecules to pass through, which can effectively enhance the protection of the pneumatic sensing element 50.

[0064] Specifically, the mounting rack 44 is provided with a receiving groove 440, the anti-backflow air channel 46 is arranged at the groove bottom of the receiving groove 440, the starting air channel 41 communicates with the receiving groove 440, and the port of the anti-backflow air channel 46 is arranged in a spaced manner with the port of the starting air channel 41. The bottom wall of the receiving groove 440 further forms a liquid accumulation groove 47 surrounding the anti-backflow air channel 46, and the port of the starting air channel 41 communicates with the liquid accumulation groove 47, so that even if condensed liquid is formed in the starting air channel 41, the condensed liquid can enter the liquid accumulation groove 47, thereby avoiding the condensed liquid from blocking the port of the anti-backflow air channel 46, to ensure the smooth starting of the pneumatic sensing element 50.

[0065] Further, the mounting rack 44 is further provided with a pressure relief air channel 48, which is also arranged at the groove bottom of the receiving groove 440. One end of the pressure relief air channel 48 communicates with the end of the anti-backflow air channel 46 away from the starting air channel 41, and the other end of the pressure relief air channel 48 communicates with the atmosphere. The pressure relief air channel 48 is used to anchor the atmospheric pressure, to avoid the pneumatic sensing element 50 from being mistakenly triggered due to slight changes in the gas state in the atomization cavity 22.

[0066] The electronic atomization device 100 may, due to the environment and state, have the gas state in the atomization cavity 22 change when not in use by the user. For example, the electronic atomization device 100 may, due to decay or being close to a high-temperature object, cause the gas state inside to change, but the user is not using it. If there is no pressure relief air channel 48, there is a risk of causing the pneumatic sensing element 50 to be mistakenly triggered.

[0067] By setting the pressure relief air channel 48 to anchor the atmospheric pressure, when the gas pressure in the atomization cavity 22 changes due to non-human factors, the atmospheric pressure sensed by the pressure relief air channel 48 will also change, thereby eliminating this condition that may cause a mistaken trigger, and reducing the mistaken trigger rate of the pneumatic sensing element 50.

[0068] The pressure relief air passage 48 includes a capillary section 480 and a pressure relief hole section 482, the capillary section 480 being communicated between the anti-backflow air passage 46 and the pressure relief hole section 482, and the pressure relief hole section 482 being further communicated with the atmosphere, and the capillary section 480 being used to prevent water vapor from entering the anti-backflow air passage 46.

[0069] In other embodiments, the pressure relief air passage 48 can also be a non-capillary hole or a non-capillary groove.

[0070] With reference to Figure 4 and Figure 7 , the electronic atomization device 100 further includes a sealing member 52, the anti-backflow air passage 46 and the pressure relief air passage 48 being groove structures provided at the bottom wall of the accommodating groove 440, and the sealing member 52 being in interference fit with the accommodating groove 440 and covering the anti-backflow air passage 46 and the pressure relief air passage 48, so that the anti-backflow air passage 46 and the pressure relief air passage 48 are isolated from the liquid accumulation groove 47; wherein the sealing member 52 is provided with a through hole 520, the through hole 520 being communicated with the end of the anti-backflow air passage 46 away from the starting air passage 41, and the pneumatic sensing member 50 being arranged at the side of the sealing member 52 away from the anti-backflow air passage 46 and communicated with the anti-backflow air passage 46 through the through hole 520.

[0071] The sealing member 52 can avoid the liquid possibly existing in the starting air passage 41 from entering the control device 70 and the side of the battery cell 60, and further prevent the liquid from being guided to the pneumatic sensing member 50.

[0072] The control device 70 is connected to the mounting bracket 44 and is in pressure contact with the sealing member 52, the pneumatic sensing member 50 being arranged on the control device 70 and being electrically connected to the side of the control device 70 away from the sealing member 52, and the control device 70 being provided with a through hole corresponding to the through hole 520, the pneumatic sensing member 50 being communicated with the anti-backflow air passage 46 through the through hole and the through hole 520, so that the pneumatic sensing member 50 can more quickly transmit signals to the control device 70 and improve the starting efficiency.

[0073] Further, it is found that in the existing electronic atomization device, there is a problem of whistling and excessive noise caused by poor air flow when the user uses it, which greatly affects the user's experience. The electronic atomization device 100 provided by the present application can also solve this problem.

[0074] With reference to Figure 1 and Figures 6-8 , wherein Figure 8 is Figure 1 the cross-sectional structure schematic view of the electronic atomization device along the CC viewing direction.

[0075] In the embodiment, the electronic atomization device 100 is provided with a first air inlet hole 101, a second air inlet hole 102, and an air inlet channel 103. The air inlet channel 103 is connected with the first air inlet hole 101 and the second air inlet hole 102. The second air inlet hole 102 is connected with the atomization cavity 22, and is the air inlet hole 43 described above. The air inlet channel 103 includes at least two first air passages 104. The junction of the two adjacent first air passages 104 is provided with a protruding structure 105. The protruding structure 105 is used for diverting the airflow entering from the first air inlet hole 101 to the two first air passages 104.

[0076] The first air inlet hole 101 can be arranged on the shell 80, or the first air inlet hole 101 can be formed by cooperation of the shell 80 and the outer wall of the liquid storage bin 10, or the outer wall of the liquid storage bin 10 is provided with the first air inlet hole 101.

[0077] The first air inlet hole 101 can be a circular hole or a square hole.

[0078] In the embodiment, the first air inlet hole 101 is an oval hole or a track-shaped hole.

[0079] In the prior art, due to the size limitation of the electronic atomization device, the first air inlet hole 101 is usually arranged as a circular hole. The cross-sectional area of the circular hole is small, which easily causes a large airflow velocity when air is inhaled, and further generates a large noise. After the first air inlet hole 101 is optimized as an oval hole or a track-shaped hole, the air inlet area of the first air inlet hole 101 can be obviously increased under the condition of meeting the structure size limitation of the electronic atomization device 100, so that the flow velocity at the inlet position of the first air inlet hole 101 can be reduced, and the generation of noise can be effectively inhibited.

[0080] In a specific embodiment, the cross-sectional area of the first air inlet hole 101 is increased from 0.79 of the circular hole to 1.84 of the oval hole, so that the flow velocity at the inlet position is effectively reduced, and the air intake amount per unit time is also improved.

[0081] The second air inlet hole 102 is arranged on the base 42. The air inlet channel 103 is connected with the first air inlet hole 101 and the second air inlet hole 102. The air inlet channel 103 can be formed on the base 42, or can be formed by cooperation of the base 42 and the shell 80, or can be formed by cooperation of the outer wall of the liquid storage bin 10, the base 42, and the inner wall of the shell 80.

[0082] The protruding structure 105 is protruded relative to the inner wall surface of the air inlet channel 103. The protruding structure 105 can be arranged opposite to the first air inlet hole 101, or a channel is further arranged between the first air passage 104 and the first air inlet hole 101. The protruding structure 105 is arranged opposite to the channel to divert the airflow to the two first air passages 104.

[0083] In the existing product scheme in the market, no protruding structure 105 is arranged in the air inlet channel, and thus at the entrance and inflection point of the air inlet channel, no structure is arranged to correct and limit the channel, so that the airflow at the entrance and inflection point is turbulent, and serious vortex is generated, thereby causing poor air intake and large noise.

[0084] The protruding structure 105 is arranged at the air passage entrance close to the first air inlet hole 101, so that the airflow is smoothly divided into two, and enters the first air passages 104 on both sides of the protruding structure 105, so as to reduce the impact of the entering gas on the wall surface at the entrance of the air inlet channel 103 by using the protruding structure 105. Not only can the airflow be smooth, the flow rate be reduced, and the generation of turbulence be reduced, but also the noise can be greatly reduced, so that the entering airflow is smoother and the generated noise is relatively reduced.

[0085] The protruding structure 105 can be an arc structure, a triangular structure, and a spherical structure, the vertex of the arc structure or the spherical structure is arranged corresponding to the first air inlet hole 101, or the sharp corner of the triangular structure is arranged corresponding to the first air inlet hole 101, so that the airflow can be more smoothly divided into two, and the impact of the airflow on the protruding structure 105 can be effectively reduced, that is, the generation of turbulence can be reduced, and the noise can be reduced.

[0086] In the embodiment, the protruding structure 105 is an arc structure, the outer wall surface of the arc structure facing the first air inlet hole 101 is a circular arc surface 106, and the two sides of the circular arc surface 106 are connected to the side wall surfaces of the two adjacent first air passages 104. The circular arc surface 106 can effectively unload the force by using its shape to reduce the impact of the entering gas, so that the airflow can more smoothly enter the two first air passages 104, thereby effectively reducing the noise, and even eliminating the noise.

[0087] The radius of the circular arc surface 106 is greater than or equal to 0.5 mm and less than or equal to 3.0 mm, for example, the radius of the circular arc surface 106 can be 0.5 mm, 1.0 mm, 1.5 mm, 2.0 mm, 2.5 mm, or 3.0 mm. The size range can make the airflow more smooth when it is divided, the generated noise is smaller, and interference with other structure sizes on the electronic atomization device 100 can be avoided.

[0088] In an embodiment, the shell 80 is provided with the first air inlet hole 101, the base 42 is provided with the second air inlet hole 102, at least part of the base 42 is arranged in the shell 80 and cooperates with the shell 80 to form the air inlet channel 103; wherein the protruding structure 105 is arranged on the shell 80 or the base 42, so that the formation of the air inlet channel 103 and the protruding structure 105 is more simple, and the manufacturing process of the corresponding structure is more simple.

[0089] In the embodiment, the protruding structure 105 and the first air channel 104 are arranged on the base 42, the first air channel 104 is arranged in an arc shape along the circumference of the electronic atomization device 100, and the protruding structure 105 is arranged opposite to the first air inlet hole 101.

[0090] Further, the protruding structure 105 is an arc structure, and the symmetry plane of the arc surface 106 of the protruding structure 105 is opposite to the center of the first air inlet hole 101, so as to more evenly distribute the airflow.

[0091] The first air channel 104 is a groove structure arranged on the outer circumferential wall of the base 42, and the shell 80 covers the groove structure. The first air channel 104 is arranged in an arc shape, so that the extension length of the first air channel 104 is longer, and it is also beneficial to reduce turbulence by rotating.

[0092] The air inlet channel 103 further includes a second air channel 107, and the base 42 is further provided with the second air channel 107. The second air channel 107 transversely passes through the base 42, the second air inlet hole 102 communicates with the second air channel 107, each first air channel 104 is arranged around the second air inlet hole 102, and each first air channel 104 communicates with the second air channel 107, so as to supply air to the second air inlet hole 102 through the second air channel 107.

[0093] That is, in the present application, the number of first air inlet holes 101 can be multiple, and multiple first air channels 104 are arranged in a connected ring shape around the circumference of the electronic atomization device 100. The first air channel 104 is arranged between the first air inlet hole 101 and the second air channel 107, so as to avoid blockage of the first air inlet hole 101 and the air inlet channel 103.

[0094] In the embodiment, the shell 80 is provided with two first air inlet holes 101, and the protruding structure 105 is arranged one by one corresponding to the first air inlet hole 101. The number of protruding structures 105 is also two, the number of first air channels 104 is four and is distributed on both sides of the protruding structure 105, the four first air channels 104 are arranged in a connected ring shape around the circumference of the electronic atomization device 100, and one end of the first air channel 104 communicates with the first air inlet hole 101, and the other end communicates with one end of the second air channel 107.

[0095] In other embodiments, the number of first air inlet holes 101 can also be four, the number of first air channels 104 is eight, and the number of second air channels 107 can be two.

[0096] In the embodiment, the first air inlet hole 101 and the air inlet channel 103 are located at the same horizontal position, that is, the first air inlet hole 101, the first air channel 104, the protruding structure 105, and the second air channel 107 are located at the same horizontal position.

[0097] Further, the cross-sectional area of the first air passage 104 gradually decreases along the flow direction from the first air inlet hole 101 to the second air inlet hole 102, that is, the first air passage 104 is designed as a variable cross-section, the cross-sectional area at the inlet of the first air passage 104 is larger, and the cross-sectional area at the outlet is smaller. By arranging a larger cross-sectional area at the inlet of the first air passage 104, the flow rate of the gas flow after entering can be effectively reduced, and the size of the vortex formed by the gas flow can be increased, preventing the formation of too many small vortexes. Small vortexes are more likely to break, and after breaking, kinetic energy is converted into internal energy to produce noise. The variable cross-section design of the first air passage 104 can improve the stability of the small vortexes and reduce the breaking rate of the small vortexes, thereby enabling the gas flow to flow more stably in the first air passage 104, thereby reducing the intake noise. That is, by further reducing the generation of small vortexes at the inlet of the first air passage 104 and reducing the breaking rate of small vortexes when flowing in the first air passage 104, the intake noise can be significantly reduced.

[0098] The inlet end of the second air passage 107 communicates with the outlet end of the first air passage 104, and the cross-sectional area of the inlet end of the second air passage 107 is larger than that of the outlet end of the first air passage 104. The cross-sectional area is the cross-sectional area along the flow direction from the first air inlet hole 101 to the second air inlet hole 102, so that when the gas flow enters the second air passage 107 from the first air passage 104, the cross-sectional area changes suddenly, thereby further reducing the noise by using the principle of resistive muffler. That is, by forming a resistive muffler at the connecting inflection point of the first air passage 104 and the second air passage 107, the noise can be further reduced.

[0099] The ratio of the cross-sectional area of the inlet end of the second air passage 107 to the cross-sectional area of the outlet end of the first air passage 104 is greater than or equal to 2.0, for example, the ratio of the cross-sectional area of the inlet end of the second air passage 107 to the cross-sectional area of the outlet end of the first air passage 104 can be 2.0, 2.5 or 3.0, etc. That is, the expansion ratio can be 2.0, 2.5 or 3.0, etc., and the first air passage 104 is designed as a variable cross-section, which is more conducive to increasing the expansion ratio at the connecting inflection point of the second air passage 107 and the first air passage 104. The larger the expansion ratio, the better the noise reduction effect.

[0100] In the embodiment, the outer wall of the base 42 is provided with a groove in the circumferential direction, and the shell 80 covers the groove to form the first air passage 104. The cross-sectional area of the groove gradually decreases along the flow direction from the first air inlet hole 101 to the second air inlet hole 102, and the inner wall surface of the shell 80 is a smooth wall surface, which is more conducive to the formation of the first air passage 104.

[0101] For reference Figure 9 and Figure 10 , Figure 9 is a structural schematic view of another embodiment of the electronic atomization device provided by the present application, Figure 10 isFigure 9 The diagram shows the structure of the electronic atomizing device with the outer casing disassembled.

[0102] In another embodiment, the electronic atomizing device 200 includes a liquid storage chamber 230, a base 240, and a housing 250. The housing 250 is fitted over the liquid storage chamber 230 and has a first air inlet 201, or the housing 250 and the liquid storage chamber 230 cooperate to form the first air inlet 201. The base 240 has a second air inlet (not shown) that communicates with the atomizing chamber (not shown) and is sealed at one end of the liquid storage chamber 230. The outer walls of the housing 250 and the liquid storage chamber 230 cooperate to form a first air passage 204, and a protruding structure 205 is provided on the liquid storage chamber 230 or the housing 250.

[0103] In this embodiment, the outer shell 250 and the liquid storage tank 230 cooperate to form a first air inlet 201. The liquid storage tank 230, the base 240 and the outer shell 250 cooperate to form an air inlet channel 203. The air inlet channel 203 connects the first air inlet 201 and the second air inlet. The air inlet channel 203 includes at least two first air passages 204. A protruding structure 205 is provided at the junction of two adjacent first air passages 204.

[0104] The protruding structure 205 is disposed on the outer wall of the liquid storage tank 230, and the air intake channel 203 also includes an air intake section 209. The outer shell 250 and the liquid storage tank 230 also cooperate to form the air intake section 209. The air intake section 209 is disposed between the first air intake hole 201 and at least two first air passages 204. The protruding structure 205 is directly opposite the air intake section 209 so that the airflow is guided through the air intake section 209 and diverted to the two first air passages 204 via the protruding structure 205.

[0105] Specifically, the outer wall of the liquid storage tank 230 is provided with a groove forming an air inlet section 209 and a first air passage 204, and the inner wall of the outer shell 250 covers the groove to correspondingly form the air inlet section 209 and the first air passage 204.

[0106] The cross-sectional area of ​​the first air passage 204 is larger than that of the air intake section 209. By setting a larger cross-sectional area at the inlet of the first air passage 204, the flow velocity after the air enters can be effectively reduced, and the size of the vortex formed by the airflow can be increased, preventing the formation of more small vortices, thereby reducing noise.

[0107] The air intake channel 203 also includes an annular air passage 208 formed between the base 240 and the outer shell 250 and a second air passage 207 that crosses the base 240. The annular air passage 208 is arranged along the circumference of the electronic atomizing device 200. Each first air passage 204 is connected to the annular air passage 208, the second air passage 207 is connected to the annular air passage 208, and the second air inlet 202 is connected to the second air passage 207.

[0108] By limiting the cross-sectional area of the first air passage in the air inlet channel gradually decreases along the flow direction from the first air hole to the second air hole, that is, the first air passage is designed as a variable cross-section, the cross-sectional area at the inlet of the first air passage is larger, and the cross-sectional area at the outlet is smaller, by setting a larger cross-sectional area at the inlet of the first air passage, the flow rate after the gas flow enters can be effectively reduced, and the vortex size formed by the gas flow is increased, preventing the formation of more small vortexes, small vortexes are more likely to break, and after breaking, kinetic energy is converted into internal energy to produce noise, and the variable cross-section design of the first air passage can improve the stability of the small vortexes, reduce the breaking proportion of the small vortexes, and thus enable the gas flow to flow more stably in the first air passage, and also reduce the air intake noise, that is, by reducing the generation of small vortexes at the inlet of the first air passage and reducing the breaking proportion of small vortexes when flowing in the first air passage, the air intake noise can be significantly reduced.

[0109] The above is only an embodiment of the present application, and does not limit the patent scope of the present application, and any equivalent structure or equivalent process transformation using the content of the specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. An atomizer, comprising an atomizing chamber, characterized in that, The atomizer includes: The outer casing is equipped with a first air intake vent; The liquid storage tank is located inside the outer shell; A base is connected to the end of the liquid storage tank; the base is provided with a second air inlet, and at least a portion of the base is disposed within the outer shell; An air intake channel, wherein the air intake channel connects the first air intake port and the second air intake port, and the second air intake port connects to the atomizing chamber; The air intake channel includes a first air passage and a second air passage connected together. The first air intake hole is connected to the first air passage, and the second air intake hole is connected to the second air passage. The cross-sectional area of ​​the first air passage gradually decreases along the flow direction from the first air intake hole to the second air intake hole.

2. The atomizer according to claim 1, characterized in that, The air inlet of the second air passage is connected to the air outlet of the first air passage. The cross-sectional area of ​​the air inlet of the second air passage is larger than the cross-sectional area of ​​the air outlet of the first air passage. The cross-sectional area is the cross-sectional area along the flow direction from the first air inlet to the second air inlet.

3. The atomizer according to claim 1, characterized in that, The ratio of the cross-sectional area of ​​the inlet end of the second airway to the cross-sectional area of ​​the outlet end of the first airway is greater than or equal to 2.

0.

4. The atomizer according to claim 1, characterized in that, The base and the outer shell cooperate to form the first air passage, and the base is provided with the second air passage.

5. The atomizer according to claim 4, characterized in that, The second air passage runs through the base, and the first air passage is arranged in an arc shape along the circumference of the atomizer. There are multiple first air passages, and all of the multiple first air passages are connected to the second air passage.

6. The atomizer according to claim 5, characterized in that, The outer wall of the base is provided with a groove along the circumference, and the outer shell covers the groove to form the first air passage. The cross-sectional area of ​​the groove gradually decreases along the flow direction from the first air inlet to the second air inlet.

7. The atomizer according to claim 5, characterized in that, The air intake channel includes at least two first air passages, and a protruding structure is provided at the junction of two adjacent first air passages. The protruding structure is used to divert the airflow entering from the first air intake hole to the first air passages on both sides.

8. The atomizer according to claim 7, characterized in that, The protruding structure can be an arc-shaped structure, a triangular structure, or a spherical structure.

9. The atomizer according to claim 8, characterized in that, The arc-shaped structure includes an arc surface, and the two sides of the arc surface are respectively connected to the sidewalls of the two adjacent first air passages.

10. The atomizer according to claim 9, characterized in that, The radius of the arc surface is greater than or equal to 0.5 mm and less than or equal to 3.0 mm.

11. The atomizer according to claim 7, characterized in that, The protruding structure is disposed on the base, and there are multiple first air inlets. The protruding structure is disposed in a one-to-one correspondence with the first air inlets, and multiple first air channels are arranged in a connected ring around the circumference of the atomizer.

12. An electronic atomizing device, characterized in that, The electronic atomizing device includes a main unit and an atomizer as described in any one of claims 1 to 11, wherein the main unit supplies power to the atomizer.

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