Airflow oscillation assembly, atomizer and aerosol generating device

Abstract

The utility model discloses an airflow oscillation assembly, an atomizer and an aerosol generating device, the airflow oscillation assembly comprises a shell, a cavity is formed in the shell, an inlet and an outlet which are communicated with the cavity and the outside are formed in the shell, and the center connecting line, facing the outlet, of the inlet is a central axis; the two partition plates are symmetrically arranged in the cavity with the central axis as the axis, and the cavity between the two partition plates is an oscillation chamber; the jet flow attaching bodies are arranged at the end, close to the inlet, of the partition plate, and the two jet flow attaching bodies are symmetrically arranged. The airflow oscillation assembly can increase the effect of promoting air flow and aerosol to form matrix steam mixing.

Description

Technical Field

[0001] This utility model relates to the field of atomization, specifically to an airflow oscillation component, an atomizer, and an aerosol generating device. Background Technology

[0002] Aerosol generators typically include an atomizing device and a power supply connected to the atomizing device's conductive electrodes. When the user's inhalation flow rate exceeds a set value, the atomizer is activated. At this point, under the electrical drive of the power supply, the atomizing device heats the aerosol-forming matrix stored within it, forming aerosol-forming matrix vapor. This vapor mixes with the airflow passing over the atomizing surface and condenses into tiny droplets, which are then distributed in the air, forming an aerosol flow. This aerosol flow then travels through the atomizing device's air passages to the mouthpiece and is inhaled by the user. Throughout the entire process, the mixing effect between the airflow and the aerosol-forming matrix vapor largely determines the user's inhalation experience.

[0003] When a user inhales from an atomizer, air flows into the atomization chamber through the air duct, mixing with the aerosol inside to form matrix vapor. The resulting mixture is then inhaled. In currently used atomizing devices, the overall airflow direction and flow area are stable upon reaching the atomization chamber, resulting in a limited contact area between the airflow and the atomization surface. This means that only a portion of the airflow can directly contact the atomization surface and effectively participate in the air-aerosol matrix droplet mixing process. Furthermore, most atomizers operate with a constant heating power, resulting in a nearly constant rate of aerosol matrix vapor formation. As the user's inhalation flow increases, the proportion of airflow participating in the mixing process decreases, leading to a more uneven aerosol distribution. These two factors result in a poor taste of the inhaled aerosol, negatively impacting the user experience.

[0004] Therefore, it is necessary to design an airflow oscillation component to improve the mixing effect of air-aerosol forming matrix droplets. Utility Model Content

[0005] In view of this, the present invention provides an airflow oscillation component and an atomizer having the same, which can increase the contact area between the airflow and the atomizing surface, so that more airflow can mix with the aerosol generated by the atomizing surface to form matrix vapor.

[0006] The technical solution adopted by this utility model to solve its technical problem is: an airflow oscillation component, characterized in that it comprises:

[0007] The shell has an internal cavity, and an inlet and an outlet are provided on the shell to connect the cavity with the outside. The center line connecting the inlet and the outlet is the central axis.

[0008] Two partitions are symmetrically arranged in the cavity with the central axis as the axis, and the cavity between the two partitions is the oscillation chamber.

[0009] The jet sticker is set on the end of the partition near the inlet, with two jet stickers arranged symmetrically.

[0010] The outer side of the jet attachment and the outer side of the partition form a feedback channel with the inner wall of the cavity. The two feedback channels are symmetrically arranged. The cavity between the inlet and the jet attachment is the control throat. One end of the feedback channel is connected to the control throat, and the other end of the feedback channel is connected to the outlet. The inner side of the jet attachment is arranged at an angle to the central axis.

[0011] Furthermore, the control throat connects the upstream inlet and the downstream oscillation chamber, and the lower ends of the two symmetrically arranged feedback channels are respectively connected to the two sides of the control throat. The oscillation chamber and the two symmetrically arranged feedback channels are separated by two symmetrical partitions.

[0012] Furthermore, the angle α between the inner surface of the jet attachment and the direction of the central axis ranges from 20° to 60°.

[0013] Furthermore, the internal geometric dimensions of the airflow oscillation component are specified as follows: ① The width of the inlet L0 is not less than 1.5mm; ② The width of the control throat L1 is ≥ 1.0L0; ③ The width of the airflow oscillation chamber L2 is ≥ 1.5L0, and the length along the main airflow direction L3 is ≥ 1.5L0; ④ The width of the outlet L4 is 0.5~0.95L0; ⑤ The width of the feedback channel L5 is ≤ 0.2L0, and not less than 0.2mm.

[0014] Furthermore, fixing holes are provided on both sides of the upper end face of the airflow oscillation component.

[0015] The second aspect of this utility model provides an atomizer, the atomizer being equipped with the aforementioned airflow oscillation component.

[0016] Furthermore, the atomizer includes a housing, and inside the housing are a mist outlet channel, a liquid storage chamber, an atomizing component, an airflow oscillation component, and a base. The top of the housing is provided with a mouthpiece, and the bottom of the housing is provided with a base. The base is also equipped with two conductive pins, and an air inlet is provided between the two conductive pins.

[0017] Furthermore, the atomizer has a mist outlet channel connected to the mouthpiece arranged sequentially from top to bottom, and a liquid storage chamber arranged circumferentially along the mist outlet channel. A liquid storage sealing seat is provided between the liquid storage chamber and the base.

[0018] Furthermore, the other end of the mist outlet channel is connected to an atomizing component. The upper end of the atomizing component is provided with an upper cover. Inside the upper cover is an atomizing core seal. The atomizing core is accommodated on the atomizing core seal and is fixed inside the upper cover by the atomizing core seal.

[0019] The third aspect of this utility model provides an atomizer generating device, which is equipped with the aforementioned atomizer.

[0020] The beneficial effects of this utility model are:

[0021] This utility model discloses an airflow oscillation component, which consists of a shell, an inlet, a control throat, a feedback channel, an oscillation chamber, an outlet, a partition, and a jet attachment. The inlet, control throat, oscillation chamber, and outlet are arranged in a straight line to form the main airflow channel. The feedback channel starts at the side of the main airflow channel, close to the outlet, and ends at the control throat. This airflow oscillation component can achieve periodic sweeping motion of airflow. The periodic sweeping frequency increases with the inhalation rate; the faster the frequency, the better the mixing effect, and it can be matched with different inhalation scenarios. The airflow oscillation component has a simple structure and is easy to implement; its geometric parameters can be adjusted according to different models of electronic atomizing devices. Attached Figure Description

[0022] To more clearly illustrate the technical solutions adopted in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0023] Figure 1 This is a front view of the atomizer in this utility model;

[0024] Figure 2 for Figure 1 Schematic diagram of the atomizer rotating 90°;

[0025] Figure 3 for Figure 2 The diagram shows a cross-sectional view of the atomizer along the AA direction, with the arrows indicating the airflow direction.

[0026] Figure 4 for Figure 3 Schematic diagram of the three-dimensional structure of the airflow oscillation component;

[0027] Figure 5 for Figure 4 A schematic diagram of the three-dimensional structure of the airflow oscillation component cut along the middle.

[0028] Figure 6 for Figure 4 Cross-sectional view of the airflow oscillation component;

[0029] Figure 7 This is an exploded view of the atomizer;

[0030] Figure 8 This is a schematic diagram of the periodic sweeping of airflow in the airflow oscillation component of this utility model during operation;

[0031] Figures 9-11This is a diagram illustrating the expected effect of the airflow oscillation component.

[0032] In the diagram: 100, atomizer; 01, housing; 0101, airflow inlet; 0102, control throat; 0103, feedback channel; 0104, oscillation chamber; 0105, airflow outlet; 0106, partition; 0107, jet attachment; 02, airflow oscillation assembly; 0201, fixing hole; 03, base; 04, liquid storage sealing seat; 05, outer shell; 06, atomizer core seal; 07, atomizer core; 08, sealing ring; 09, top cap; 10, air inlet; 11, liquid storage chamber; 12, mist outlet channel; 13, mouthpiece; 14, conductive pin; 20, atomizing assembly. Detailed Implementation

[0033] The present invention will now be described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0034] refer to Figures 1-3 and Figure 7 As shown, the atomizer 100 has a tower-like shape and includes a housing 05, and a mist outlet channel 12, a liquid storage chamber 11, an atomizing component 20, an airflow oscillation component 02, and a base 03 disposed inside the housing 05. The mist outlet channel 12, the atomizing component 20, and the airflow oscillation component 02 are arranged vertically from top to bottom. The atomizing component 20 and the airflow oscillation component 02 are housed in the base 03. The liquid storage chamber 11 is arranged circumferentially along the mist outlet channel 12.

[0035] The top of the outer casing 05 is provided with a mouthpiece 13, and the bottom of the outer casing 05 is provided with a base 03. The mouthpiece 13 is for the user to contact with their mouth when inhaling the gas. The base 03 is for connecting and installing with a power supply device (not shown in the figure) that supplies power to the atomizer 100. The atomizer 100 and the power supply device can form an aerosol generating device. (Reference) Figure 8 As shown, the base 03 is also equipped with two conductive nails 14, which are used to transmit electrical energy to the power supply device. The base 03 is also provided with an air inlet 10, through which air from outside the atomizer 100 enters the atomizer 100.

[0036] The atomizing assembly 20 includes an upper cap 09, an atomizing core seal 06, and an atomizing core 07. The atomizing core 07 is installed inside the upper cap 09 via the atomizing core seal 06. A liquid storage sealing seat 04 is provided between the upper end of the upper cap 09 and the base 03 and the liquid storage chamber 11. The liquid storage chamber 11 contains an aerosol forming matrix, and the liquid storage sealing seat 04 can prevent leakage of the aerosol forming matrix in the liquid storage chamber 11.

[0037] refer to Figures 3-7As shown, the airflow oscillation assembly 02 has fixing holes 0201 on both sides of its upper surface, through which conductive nails 14 can pass. The airflow oscillation assembly 02 includes a housing 01, an inlet 0101, a control throat 0102, a feedback channel 0103, an oscillation chamber 0104, an outlet 0105, a partition 0106, and a jet attachment 0107. The width L4 of the outlet 0105 is smaller than the width L0 of the inlet 0101. The control throat 0102 connects the upstream inlet 0101 and the downstream oscillation chamber 0104. The feedback channels 0103 are symmetrically arranged on both sides of the oscillation chamber 0104, with their starting points adjacent to the outlet 0105 and their ending points connecting the two sides of the control throat 0102. The oscillation chamber 0104 and the symmetrically arranged feedback channels 0103 are separated by two symmetrical partitions 0106. (Reference) Figure 5 and Figure 6 As shown, the central axis is the line connecting the center of inlet 0101 to outlet 0105. Two jet attachments 0107 are symmetrically arranged on the partition 0106 near the end of inlet 0101. Specifically, the jet attachment 0107 is an annular pointed protrusion extending from the partition 0106. The jet attachment 0107 can form an airflow channel with a small inlet and a large outlet in the oscillation chamber 0104. The angle α between the inner surface of the jet attachment 0107 and the direction of the central axis is in the range of 20°~60°.

[0038] refer to Figure 3 As shown, the upper end of the mist outlet channel 12 is connected to the mouthpiece 13, and the lower end is connected to the heating surface of the atomizing core 07 of the atomizing assembly 20. The atomizing core 07 can be heated when energized, causing the aerosol forming matrix to evaporate. The upper end of the airflow oscillation assembly 02 has an outlet 0105, and the lower end has an inlet 0101. The outlet 0105 leads to the heating surface of the atomizing core 07, and the inlet 0101 is connected to the air inlet 10. To enhance the airtightness of the atomizer 100, a sealing ring 08 is installed on the contact surface between the base 03 and the outer shell 05. Silicone is the preferred material for the sealing ring 08.

[0039] In some embodiments, to achieve the desired airflow periodic sweeping motion, reference is made. Figure 6 As shown, the following specifications apply to the internal geometric dimensions of the airflow oscillation assembly: ① The width L0 of the inlet 0101 is determined by the internal airflow channel dimensions of the atomizer 100, but is not less than 1.5 mm; ② The width L1 of the control throat 0102 is ≥ 1.0 L0; ③ The width L2 of the airflow oscillation chamber 0104 is ≥ 1.5 L0, and the length L3 along the main airflow direction is ≥ 1.5 L0; ④ The width L4 of the outlet 0105 is 0.5~0.95 L0; ⑤ The width L5 of the feedback channel 0103 is ≤ 0.2 L0, and is not less than 0.2 mm.

[0040] In the airflow oscillation assembly 02, the inlet 0101, control throat 0102, oscillation chamber 0104, and outlet 0105 sequentially form the main airflow channel. The jet attachment 0107 forms a fixed angle with the direction of the main airflow channel, used to induce deflection of the main airflow. The airflow that flows from the outlet 0105 into the feedback channel 0103 and finally returns to the control throat 0102 is the control airflow, used to periodically adjust the direction of the mainstream airflow.

[0041] The airflow path in the airflow oscillation component 02 is as follows Figure 3 As shown, when the user inhales, the airflow enters the atomizer 100 through the air inlet 10, flows through the airflow oscillation assembly 02, and in the airflow oscillation assembly 02, because the width L4 of the outlet 0105 is smaller than the width L0 of the inlet 0101, part of the airflow (control airflow) flows back from the outlet 0105 through the feedback channels 0103 on both sides to the control throat 0102 at the inlet 0101 to periodically change the direction of the main airflow. After the main airflow flows out from the outlet 0105, it collides with the surface of the atomizing core 07 and mixes with the aerosol matrix vapor to form an aerosol. After this, the aerosol airflow enters the mist outlet channel 12 through the reserved air passage inside the upper end cap 09, and is finally inhaled by the user through the mouthpiece 13.

[0042] refer to Figure 7 As shown, during assembly, the conductive pins 14 are first installed on the base 03. Then, the airflow oscillation assembly 02 is positioned using the fixing holes 0201 on both sides. The airflow oscillation assembly 02 is then inserted into the two conductive pins 14 for fixation. These three components form the first group. The atomizing core seal 06 is then installed into the upper cap 09, and the atomizing core 07 is placed into the pre-reserved mounting position of the atomizing core seal 06. These three components form the second group. Both groups of components are positioned and installed using the pre-reserved clips between the base 03 and the upper cap 09.

[0043] Figure 8 This is a schematic diagram of the periodic airflow sweep of the airflow oscillation component 02 during operation. The arrows in the diagram indicate the direction of airflow. Figures 9-11 This is a diagram illustrating the expected effect of the airflow oscillation component 02. The internal flow self-excited deflection process of the flow oscillator 02 provided by this invention is as follows: Figure 8As shown, there is a feedback channel 0103 on each side inside. The airflow flows upward at the airflow inlet 0101. Due to the Coanda effect, when the main airflow enters the oscillation chamber 0104 from the control throat 0102, it will flow along one side of the jet attachment wall 0107. Due to the flow restriction effect of the airflow outlet 0105, part of the airflow (control airflow) enters the feedback channel 0104 on that side and flows back to the control throat 0102, filling the space of the oscillation chamber 0104 near that side, pushing the main airflow to the other side of the jet attachment wall 0107. This cycle repeats, thus forming a periodic sweeping oscillating airflow at the airflow outlet 0105. The periodic sweeping motion of the main airflow at outlet 0105 effectively increases the contact area between the airflow and the atomizing surface, allowing more airflow to mix with the aerosol generated by the atomizing surface to form matrix vapor. Furthermore, the main airflow continuously forms vortices of varying sizes as it sweeps up and down; these vortices have a stronger entrainment capacity for vapor, further promoting the mixing of airflow and aerosol into matrix vapor. Additionally, the sweeping frequency of the airflow at the oscillator outlet increases with airflow velocity. According to the aforementioned theory, a higher sweeping frequency leads to better mixing, effectively avoiding the problems of decreased aerosol (the mixture of air and aerosol forming matrix vapor) concentration and uneven taste that occur with increased suction flow in existing technologies.

[0044] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the scope of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. An airflow oscillation component, characterized in that, include: The housing (01) has an internal cavity. An inlet (0101) and an outlet (0105) are provided on the housing (01) to connect the cavity with the outside. The center line connecting the inlet (0101) and the outlet (0105) is the central axis. Partition (0106), two partitions (0106) are arranged symmetrically about the central axis in the cavity, and the cavity between the two partitions (0106) is an oscillation chamber (0104); A jet attachment (0107) is disposed on the partition (0106) at one end near the inlet (0101), and two jet attachments (0107) are symmetrically arranged. The outer side of the jet attachment (0107) and the outer side of the partition (0106) form a feedback channel (0103) between the inner wall of the cavity. The two feedback channels (0103) are symmetrically arranged. The cavity between the inlet (0101) and the jet attachment (0107) is a control throat (0102). One end of the feedback channel (0103) is connected to the control throat (0102), and the other end of the feedback channel (0103) is connected to the outlet (0105). The inner side of the jet attachment (0107) is arranged at an angle to the central axis.

2. The airflow oscillation component as described in claim 1, characterized in that: The control throat (0102) connects the upstream inlet (0101) with the downstream oscillation chamber (0104). The lower ends of the two symmetrically arranged feedback channels (0103) are respectively connected to the two sides of the control throat (0102). The oscillation chamber (0104) and the two symmetrically arranged feedback channels (0103) are separated by two symmetrically arranged partitions (0106).

3. The airflow oscillation component as described in claim 2, characterized in that: The angle α between the inner surface of the jet attachment (0107) and the central axis ranges from 20° to 60°.

4. The airflow oscillation component as described in claim 3, characterized in that: The internal geometric dimensions of the airflow oscillation component (02) are specified as follows: ① The width L0 of the inlet (0101) is not less than 1.5 mm; ② The width L1 of the control throat (0102) is ≥ 1.0 L0; ③ The width L2 of the airflow oscillation chamber (0104) is ≥ 1.5 L0, and the length L3 along the main airflow direction is ≥ 1.5 L0; ④ The width L4 of the outlet (0105) is 0.5 to 0.95 L0; ⑤ The width L5 of the feedback channel (0103) is ≤ 0.2 L0 and not less than 0.2 mm.

5. The airflow oscillation component as described in claim 1, characterized in that: The airflow oscillation component (02) has fixing holes (0201) on both sides of its upper end face.

6. An atomizer, characterized in that: The atomizer includes the airflow oscillation assembly as described in any one of claims 1 to 5.

7. The atomizer as described in claim 6, characterized in that: The atomizer (100) includes a housing (05), and a mist outlet channel (12), a liquid storage chamber (11), an atomizing component (20), an airflow oscillation component (02), and a base (03) disposed inside the housing (05). The top of the housing (05) is provided with a mouthpiece (13), and the bottom of the housing (05) is provided with the base (03). The base (03) is also equipped with two conductive nails (14), and an air inlet (10) is provided between the two conductive nails (14).

8. The atomizer as described in claim 7, characterized in that: The atomizer (100) has a mist outlet channel (12) connected to the mouthpiece (13) from top to bottom inside. A liquid storage chamber (11) is arranged circumferentially along the mist outlet channel (12). A liquid storage sealing seat (04) is provided between the liquid storage chamber (11) and the base (03).

9. The atomizer as described in claim 8, characterized in that: The other end of the mist outlet channel (12) is connected to the atomizing component (20). The upper end of the atomizing component (20) is provided with an upper end cap (09). The upper end cap (09) is provided with an atomizing core seal (06). The atomizing core seal (06) accommodates an atomizing core (07). The atomizing core (07) is fixed inside the upper end cap (09) by the atomizing core seal (06).

10. An aerosol generating device, characterized in that: The aerosol generating device includes the atomizer according to any one of claims 6 to 9.

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